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Diffstat (limited to 'channels/chan_dahdi.c')
| -rw-r--r-- | channels/chan_dahdi.c | 11992 |
1 files changed, 11992 insertions, 0 deletions
diff --git a/channels/chan_dahdi.c b/channels/chan_dahdi.c new file mode 100644 index 000000000..81498b372 --- /dev/null +++ b/channels/chan_dahdi.c @@ -0,0 +1,11992 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 1999 - 2006, Digium, Inc. + * + * Mark Spencer <markster@digium.com> + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief DAHDI Pseudo TDM interface + * + * \author Mark Spencer <markster@digium.com> + * + * Connects to the DAHDI telephony library as well as + * libpri. Libpri is optional and needed only if you are + * going to use ISDN connections. + * + * You need to install libraries before you attempt to compile + * and install the DAHDI channel. + * + * \par See also + * \arg \ref Config_dahdi + * + * \ingroup channel_drivers + * + * \todo Deprecate the "musiconhold" configuration option post 1.4 + */ + +/*** MODULEINFO + <depend>res_smdi</depend> + <depend>dahdi</depend> + <depend>tonezone</depend> + <depend>res_features</depend> + <use>pri</use> + ***/ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include <stdio.h> +#include <string.h> +#ifdef __NetBSD__ +#include <pthread.h> +#include <signal.h> +#else +#include <sys/signal.h> +#endif +#include <errno.h> +#include <stdlib.h> +#if !defined(SOLARIS) && !defined(__FreeBSD__) +#include <stdint.h> +#endif +#include <unistd.h> +#include <sys/ioctl.h> +#include <math.h> +#include <ctype.h> + +#ifdef HAVE_PRI +#include <libpri.h> +#endif + +#include "asterisk/lock.h" +#include "asterisk/channel.h" +#include "asterisk/config.h" +#include "asterisk/logger.h" +#include "asterisk/module.h" +#include "asterisk/pbx.h" +#include "asterisk/options.h" +#include "asterisk/file.h" +#include "asterisk/ulaw.h" +#include "asterisk/alaw.h" +#include "asterisk/callerid.h" +#include "asterisk/adsi.h" +#include "asterisk/cli.h" +#include "asterisk/cdr.h" +#include "asterisk/features.h" +#include "asterisk/musiconhold.h" +#include "asterisk/say.h" +#include "asterisk/tdd.h" +#include "asterisk/app.h" +#include "asterisk/dsp.h" +#include "asterisk/astdb.h" +#include "asterisk/manager.h" +#include "asterisk/causes.h" +#include "asterisk/term.h" +#include "asterisk/utils.h" +#include "asterisk/transcap.h" +#include "asterisk/stringfields.h" +#include "asterisk/abstract_jb.h" +#include "asterisk/smdi.h" +#include "asterisk/astobj.h" +#define SMDI_MD_WAIT_TIMEOUT 1500 /* 1.5 seconds */ + +#include "asterisk/dahdi_compat.h" +#include "asterisk/tonezone_compat.h" + +/*! Global jitterbuffer configuration - by default, jb is disabled */ +static struct ast_jb_conf default_jbconf = +{ + .flags = 0, + .max_size = -1, + .resync_threshold = -1, + .impl = "" +}; +static struct ast_jb_conf global_jbconf; + +#ifndef DAHDI_TONEDETECT +/* Work around older code with no tone detect */ +#define DAHDI_EVENT_DTMFDOWN 0 +#define DAHDI_EVENT_DTMFUP 0 +#endif + +/* define this to send PRI user-user information elements */ +#undef SUPPORT_USERUSER + +/*! + * \note Define ZHONE_HACK to cause us to go off hook and then back on hook when + * the user hangs up to reset the state machine so ring works properly. + * This is used to be able to support kewlstart by putting the zhone in + * groundstart mode since their forward disconnect supervision is entirely + * broken even though their documentation says it isn't and their support + * is entirely unwilling to provide any assistance with their channel banks + * even though their web site says they support their products for life. + */ +/* #define ZHONE_HACK */ + +/*! \note + * Define if you want to check the hook state for an FXO (FXS signalled) interface + * before dialing on it. Certain FXO interfaces always think they're out of + * service with this method however. + */ +/* #define DAHDI_CHECK_HOOKSTATE */ + +/*! \brief Typically, how many rings before we should send Caller*ID */ +#define DEFAULT_CIDRINGS 1 + +#define CHANNEL_PSEUDO -12 + +#define AST_LAW(p) (((p)->law == DAHDI_LAW_ALAW) ? AST_FORMAT_ALAW : AST_FORMAT_ULAW) + +/*! \brief Signaling types that need to use MF detection should be placed in this macro */ +#define NEED_MFDETECT(p) (((p)->sig == SIG_FEATDMF) || ((p)->sig == SIG_FEATDMF_TA) || ((p)->sig == SIG_E911) || ((p)->sig == SIG_FGC_CAMA) || ((p)->sig == SIG_FGC_CAMAMF) || ((p)->sig == SIG_FEATB)) + +static const char tdesc[] = "DAHDI Telephony Driver" +#ifdef HAVE_PRI + " w/PRI" +#endif +; + +#define SIG_EM DAHDI_SIG_EM +#define SIG_EMWINK (0x0100000 | DAHDI_SIG_EM) +#define SIG_FEATD (0x0200000 | DAHDI_SIG_EM) +#define SIG_FEATDMF (0x0400000 | DAHDI_SIG_EM) +#define SIG_FEATB (0x0800000 | DAHDI_SIG_EM) +#define SIG_E911 (0x1000000 | DAHDI_SIG_EM) +#define SIG_FEATDMF_TA (0x2000000 | DAHDI_SIG_EM) +#define SIG_FGC_CAMA (0x4000000 | DAHDI_SIG_EM) +#define SIG_FGC_CAMAMF (0x8000000 | DAHDI_SIG_EM) +#define SIG_FXSLS DAHDI_SIG_FXSLS +#define SIG_FXSGS DAHDI_SIG_FXSGS +#define SIG_FXSKS DAHDI_SIG_FXSKS +#define SIG_FXOLS DAHDI_SIG_FXOLS +#define SIG_FXOGS DAHDI_SIG_FXOGS +#define SIG_FXOKS DAHDI_SIG_FXOKS +#define SIG_PRI DAHDI_SIG_CLEAR +#define SIG_SF DAHDI_SIG_SF +#define SIG_SFWINK (0x0100000 | DAHDI_SIG_SF) +#define SIG_SF_FEATD (0x0200000 | DAHDI_SIG_SF) +#define SIG_SF_FEATDMF (0x0400000 | DAHDI_SIG_SF) +#define SIG_SF_FEATB (0x0800000 | DAHDI_SIG_SF) +#define SIG_EM_E1 DAHDI_SIG_EM_E1 +#define SIG_GR303FXOKS (0x0100000 | DAHDI_SIG_FXOKS) +#define SIG_GR303FXSKS (0x0100000 | DAHDI_SIG_FXSKS) + +#define NUM_SPANS 32 +#define NUM_DCHANS 4 /*!< No more than 4 d-channels */ +#define MAX_CHANNELS 672 /*!< No more than a DS3 per trunk group */ + +#define CHAN_PSEUDO -2 + +#define DCHAN_PROVISIONED (1 << 0) +#define DCHAN_NOTINALARM (1 << 1) +#define DCHAN_UP (1 << 2) + +#define DCHAN_AVAILABLE (DCHAN_PROVISIONED | DCHAN_NOTINALARM | DCHAN_UP) + +static char defaultcic[64] = ""; +static char defaultozz[64] = ""; + +static char progzone[10] = ""; + +static int distinctiveringaftercid = 0; + +static int numbufs = 4; + +#ifdef HAVE_PRI +static struct ast_channel inuse; +#ifdef PRI_GETSET_TIMERS +static int pritimers[PRI_MAX_TIMERS]; +#endif +static int pridebugfd = -1; +static char pridebugfilename[1024] = ""; +#endif + +/*! \brief Wait up to 16 seconds for first digit (FXO logic) */ +static int firstdigittimeout = 16000; + +/*! \brief How long to wait for following digits (FXO logic) */ +static int gendigittimeout = 8000; + +/*! \brief How long to wait for an extra digit, if there is an ambiguous match */ +static int matchdigittimeout = 3000; + +/*! \brief Protect the interface list (of dahdi_pvt's) */ +AST_MUTEX_DEFINE_STATIC(iflock); + + +static int ifcount = 0; + +#ifdef HAVE_PRI +AST_MUTEX_DEFINE_STATIC(pridebugfdlock); +#endif + +/*! \brief Protect the monitoring thread, so only one process can kill or start it, and not + when it's doing something critical. */ +AST_MUTEX_DEFINE_STATIC(monlock); + +/*! \brief This is the thread for the monitor which checks for input on the channels + which are not currently in use. */ +static pthread_t monitor_thread = AST_PTHREADT_NULL; +static ast_cond_t ss_thread_complete; +AST_MUTEX_DEFINE_STATIC(ss_thread_lock); +AST_MUTEX_DEFINE_STATIC(restart_lock); +static int ss_thread_count = 0; +static int num_restart_pending = 0; + +static int restart_monitor(void); + +static enum ast_bridge_result dahdi_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms); + +static int dahdi_sendtext(struct ast_channel *c, const char *text); + +/*! \brief Avoid the silly dahdi_getevent which ignores a bunch of events */ +static inline int dahdi_get_event(int fd) +{ + int j; + if (ioctl(fd, DAHDI_GETEVENT, &j) == -1) + return -1; + return j; +} + +/*! \brief Avoid the silly dahdi_waitevent which ignores a bunch of events */ +static inline int dahdi_wait_event(int fd) +{ + int i, j = 0; + i = DAHDI_IOMUX_SIGEVENT; + if (ioctl(fd, DAHDI_IOMUX, &i) == -1) + return -1; + if (ioctl(fd, DAHDI_GETEVENT, &j) == -1) + return -1; + return j; +} + +/*! Chunk size to read -- we use 20ms chunks to make things happy. */ +#define READ_SIZE 160 + +#define MASK_AVAIL (1 << 0) /*!< Channel available for PRI use */ +#define MASK_INUSE (1 << 1) /*!< Channel currently in use */ + +#define CALLWAITING_SILENT_SAMPLES ( (300 * 8) / READ_SIZE) /*!< 300 ms */ +#define CALLWAITING_REPEAT_SAMPLES ( (10000 * 8) / READ_SIZE) /*!< 10,000 ms */ +#define CIDCW_EXPIRE_SAMPLES ( (500 * 8) / READ_SIZE) /*!< 500 ms */ +#define MIN_MS_SINCE_FLASH ( (2000) ) /*!< 2000 ms */ +#define DEFAULT_RINGT ( (8000 * 8) / READ_SIZE) /*!< 8,000 ms */ + +struct dahdi_pvt; + +static int ringt_base = DEFAULT_RINGT; + +#ifdef HAVE_PRI + +#define PVT_TO_CHANNEL(p) (((p)->prioffset) | ((p)->logicalspan << 8) | (p->pri->mastertrunkgroup ? 0x10000 : 0)) +#define PRI_CHANNEL(p) ((p) & 0xff) +#define PRI_SPAN(p) (((p) >> 8) & 0xff) +#define PRI_EXPLICIT(p) (((p) >> 16) & 0x01) + +struct dahdi_pri { + pthread_t master; /*!< Thread of master */ + ast_mutex_t lock; /*!< Mutex */ + char idleext[AST_MAX_EXTENSION]; /*!< Where to idle extra calls */ + char idlecontext[AST_MAX_CONTEXT]; /*!< What context to use for idle */ + char idledial[AST_MAX_EXTENSION]; /*!< What to dial before dumping */ + int minunused; /*!< Min # of channels to keep empty */ + int minidle; /*!< Min # of "idling" calls to keep active */ + int nodetype; /*!< Node type */ + int switchtype; /*!< Type of switch to emulate */ + int nsf; /*!< Network-Specific Facilities */ + int dialplan; /*!< Dialing plan */ + int localdialplan; /*!< Local dialing plan */ + char internationalprefix[10]; /*!< country access code ('00' for european dialplans) */ + char nationalprefix[10]; /*!< area access code ('0' for european dialplans) */ + char localprefix[20]; /*!< area access code + area code ('0'+area code for european dialplans) */ + char privateprefix[20]; /*!< for private dialplans */ + char unknownprefix[20]; /*!< for unknown dialplans */ + int dchannels[NUM_DCHANS]; /*!< What channel are the dchannels on */ + int trunkgroup; /*!< What our trunkgroup is */ + int mastertrunkgroup; /*!< What trunk group is our master */ + int prilogicalspan; /*!< Logical span number within trunk group */ + int numchans; /*!< Num of channels we represent */ + int overlapdial; /*!< In overlap dialing mode */ + int facilityenable; /*!< Enable facility IEs */ + struct pri *dchans[NUM_DCHANS]; /*!< Actual d-channels */ + int dchanavail[NUM_DCHANS]; /*!< Whether each channel is available */ + struct pri *pri; /*!< Currently active D-channel */ + int debug; + int fds[NUM_DCHANS]; /*!< FD's for d-channels */ + int offset; + int span; + int resetting; + int resetpos; +#ifdef HAVE_PRI_INBANDDISCONNECT + unsigned int inbanddisconnect:1; /*!< Should we support inband audio after receiving DISCONNECT? */ +#endif + time_t lastreset; /*!< time when unused channels were last reset */ + long resetinterval; /*!< Interval (in seconds) for resetting unused channels */ + struct dahdi_pvt *pvts[MAX_CHANNELS]; /*!< Member channel pvt structs */ + struct dahdi_pvt *crvs; /*!< Member CRV structs */ + struct dahdi_pvt *crvend; /*!< Pointer to end of CRV structs */ +}; + + +static struct dahdi_pri pris[NUM_SPANS]; + +#if 0 +#define DEFAULT_PRI_DEBUG (PRI_DEBUG_Q931_DUMP | PRI_DEBUG_Q921_DUMP | PRI_DEBUG_Q921_RAW | PRI_DEBUG_Q921_STATE) +#else +#define DEFAULT_PRI_DEBUG 0 +#endif + +static inline void pri_rel(struct dahdi_pri *pri) +{ + ast_mutex_unlock(&pri->lock); +} + +#else +/*! Shut up the compiler */ +struct dahdi_pri; +#endif + +#define SUB_REAL 0 /*!< Active call */ +#define SUB_CALLWAIT 1 /*!< Call-Waiting call on hold */ +#define SUB_THREEWAY 2 /*!< Three-way call */ + +/* Polarity states */ +#define POLARITY_IDLE 0 +#define POLARITY_REV 1 + + +static struct dahdi_distRings drings; + +struct distRingData { + int ring[3]; +}; +struct ringContextData { + char contextData[AST_MAX_CONTEXT]; +}; +struct dahdi_distRings { + struct distRingData ringnum[3]; + struct ringContextData ringContext[3]; +}; + +static char *subnames[] = { + "Real", + "Callwait", + "Threeway" +}; + +struct dahdi_subchannel { + int dfd; + struct ast_channel *owner; + int chan; + short buffer[AST_FRIENDLY_OFFSET/2 + READ_SIZE]; + struct ast_frame f; /*!< One frame for each channel. How did this ever work before? */ + unsigned int needringing:1; + unsigned int needbusy:1; + unsigned int needcongestion:1; + unsigned int needcallerid:1; + unsigned int needanswer:1; + unsigned int needflash:1; + unsigned int needhold:1; + unsigned int needunhold:1; + unsigned int linear:1; + unsigned int inthreeway:1; + struct dahdi_confinfo curconf; +}; + +#define CONF_USER_REAL (1 << 0) +#define CONF_USER_THIRDCALL (1 << 1) + +#define MAX_SLAVES 4 + +static struct dahdi_pvt { + ast_mutex_t lock; + struct ast_channel *owner; /*!< Our current active owner (if applicable) */ + /*!< Up to three channels can be associated with this call */ + + struct dahdi_subchannel sub_unused; /*!< Just a safety precaution */ + struct dahdi_subchannel subs[3]; /*!< Sub-channels */ + struct dahdi_confinfo saveconf; /*!< Saved conference info */ + + struct dahdi_pvt *slaves[MAX_SLAVES]; /*!< Slave to us (follows our conferencing) */ + struct dahdi_pvt *master; /*!< Master to us (we follow their conferencing) */ + int inconference; /*!< If our real should be in the conference */ + + int buf_no; /*!< Number of buffers */ + int buf_policy; /*!< Buffer policy */ + int sig; /*!< Signalling style */ + int radio; /*!< radio type */ + int outsigmod; /*!< Outbound Signalling style (modifier) */ + int oprmode; /*!< "Operator Services" mode */ + struct dahdi_pvt *oprpeer; /*!< "Operator Services" peer tech_pvt ptr */ + float rxgain; + float txgain; + int tonezone; /*!< tone zone for this chan, or -1 for default */ + struct dahdi_pvt *next; /*!< Next channel in list */ + struct dahdi_pvt *prev; /*!< Prev channel in list */ + + /* flags */ + unsigned int adsi:1; + unsigned int answeronpolarityswitch:1; + unsigned int busydetect:1; + unsigned int callreturn:1; + unsigned int callwaiting:1; + unsigned int callwaitingcallerid:1; + unsigned int cancallforward:1; + unsigned int canpark:1; + unsigned int confirmanswer:1; /*!< Wait for '#' to confirm answer */ + unsigned int destroy:1; + unsigned int didtdd:1; /*!< flag to say its done it once */ + unsigned int dialednone:1; + unsigned int dialing:1; + unsigned int digital:1; + unsigned int dnd:1; + unsigned int echobreak:1; + unsigned int echocanbridged:1; + unsigned int echocanon:1; + unsigned int faxhandled:1; /*!< Has a fax tone already been handled? */ + unsigned int firstradio:1; + unsigned int hanguponpolarityswitch:1; + unsigned int hardwaredtmf:1; + unsigned int hidecallerid:1; + unsigned int hidecalleridname:1; /*!< Hide just the name not the number for legacy PBX use */ + unsigned int ignoredtmf:1; + unsigned int immediate:1; /*!< Answer before getting digits? */ + unsigned int inalarm:1; + unsigned int unknown_alarm:1; + unsigned int mate:1; /*!< flag to say its in MATE mode */ + unsigned int outgoing:1; + unsigned int overlapdial:1; + unsigned int permcallwaiting:1; + unsigned int permhidecallerid:1; /*!< Whether to hide our outgoing caller ID or not */ + unsigned int priindication_oob:1; + unsigned int priexclusive:1; + unsigned int pulse:1; + unsigned int pulsedial:1; /*!< whether a pulse dial phone is detected */ + unsigned int restartpending:1; /*!< flag to ensure counted only once for restart */ + unsigned int restrictcid:1; /*!< Whether restrict the callerid -> only send ANI */ + unsigned int threewaycalling:1; + unsigned int transfer:1; + unsigned int use_callerid:1; /*!< Whether or not to use caller id on this channel */ + unsigned int use_callingpres:1; /*!< Whether to use the callingpres the calling switch sends */ + unsigned int usedistinctiveringdetection:1; + unsigned int dahditrcallerid:1; /*!< should we use the callerid from incoming call on dahdi transfer or not */ + unsigned int transfertobusy:1; /*!< allow flash-transfers to busy channels */ +#if defined(HAVE_PRI) + unsigned int alerting:1; + unsigned int alreadyhungup:1; + unsigned int isidlecall:1; + unsigned int proceeding:1; + unsigned int progress:1; + unsigned int resetting:1; + unsigned int setup_ack:1; +#endif + unsigned int use_smdi:1; /* Whether to use SMDI on this channel */ + struct ast_smdi_interface *smdi_iface; /* The serial port to listen for SMDI data on */ + + struct dahdi_distRings drings; + + char context[AST_MAX_CONTEXT]; + char defcontext[AST_MAX_CONTEXT]; + char exten[AST_MAX_EXTENSION]; + char language[MAX_LANGUAGE]; + char mohinterpret[MAX_MUSICCLASS]; + char mohsuggest[MAX_MUSICCLASS]; +#ifdef PRI_ANI + char cid_ani[AST_MAX_EXTENSION]; +#endif + char cid_num[AST_MAX_EXTENSION]; + int cid_ton; /*!< Type Of Number (TON) */ + char cid_name[AST_MAX_EXTENSION]; + char lastcid_num[AST_MAX_EXTENSION]; + char lastcid_name[AST_MAX_EXTENSION]; + char *origcid_num; /*!< malloced original callerid */ + char *origcid_name; /*!< malloced original callerid */ + char callwait_num[AST_MAX_EXTENSION]; + char callwait_name[AST_MAX_EXTENSION]; + char rdnis[AST_MAX_EXTENSION]; + char dnid[AST_MAX_EXTENSION]; + ast_group_t group; + int law; + int confno; /*!< Our conference */ + int confusers; /*!< Who is using our conference */ + int propconfno; /*!< Propagated conference number */ + ast_group_t callgroup; + ast_group_t pickupgroup; + int channel; /*!< Channel Number or CRV */ + int span; /*!< Span number */ + time_t guardtime; /*!< Must wait this much time before using for new call */ + int cid_signalling; /*!< CID signalling type bell202 or v23 */ + int cid_start; /*!< CID start indicator, polarity or ring */ + int callingpres; /*!< The value of callling presentation that we're going to use when placing a PRI call */ + int callwaitingrepeat; /*!< How many samples to wait before repeating call waiting */ + int cidcwexpire; /*!< When to expire our muting for CID/CW */ + unsigned char *cidspill; + int cidpos; + int cidlen; + int ringt; + int ringt_base; + int stripmsd; + int callwaitcas; + int callwaitrings; + int echocancel; + int echotraining; + char echorest[20]; + int busycount; + int busy_tonelength; + int busy_quietlength; + int callprogress; + struct timeval flashtime; /*!< Last flash-hook time */ + struct ast_dsp *dsp; + int cref; /*!< Call reference number */ + struct dahdi_dialoperation dop; + int whichwink; /*!< SIG_FEATDMF_TA Which wink are we on? */ + char finaldial[64]; + char accountcode[AST_MAX_ACCOUNT_CODE]; /*!< Account code */ + int amaflags; /*!< AMA Flags */ + struct tdd_state *tdd; /*!< TDD flag */ + char call_forward[AST_MAX_EXTENSION]; + char mailbox[AST_MAX_EXTENSION]; + char dialdest[256]; + int onhooktime; + int msgstate; + int distinctivering; /*!< Which distinctivering to use */ + int cidrings; /*!< Which ring to deliver CID on */ + int dtmfrelax; /*!< whether to run in relaxed DTMF mode */ + int fake_event; + int polarityonanswerdelay; + struct timeval polaritydelaytv; + int sendcalleridafter; +#ifdef HAVE_PRI + struct dahdi_pri *pri; + struct dahdi_pvt *bearer; + struct dahdi_pvt *realcall; + q931_call *call; + int prioffset; + int logicalspan; +#endif + int polarity; + int dsp_features; + char begindigit; +} *iflist = NULL, *ifend = NULL; + +/*! \brief Channel configuration from chan_dahdi.conf . + * This struct is used for parsing the [channels] section of chan_dahdi.conf. + * Generally there is a field here for every possible configuration item. + * + * The state of fields is saved along the parsing and whenever a 'channel' + * statement is reached, the current dahdi_chan_conf is used to configure the + * channel (struct dahdi_pvt) + * + * @seealso dahdi_chan_init for the default values. + */ +struct dahdi_chan_conf { + struct dahdi_pvt chan; +#ifdef HAVE_PRI + struct dahdi_pri pri; +#endif + struct dahdi_params timing; + + char smdi_port[SMDI_MAX_FILENAME_LEN]; +}; + +/** returns a new dahdi_chan_conf with default values (by-value) */ +static struct dahdi_chan_conf dahdi_chan_conf_default(void) { + /* recall that if a field is not included here it is initialized + * to 0 or equivalent + */ + struct dahdi_chan_conf conf = { +#ifdef HAVE_PRI + .pri = { + .nsf = PRI_NSF_NONE, + .switchtype = PRI_SWITCH_NI2, + .dialplan = PRI_NATIONAL_ISDN + 1, + .localdialplan = PRI_NATIONAL_ISDN + 1, + .nodetype = PRI_CPE, + + .minunused = 2, + .idleext = "", + .idledial = "", + .internationalprefix = "", + .nationalprefix = "", + .localprefix = "", + .privateprefix = "", + .unknownprefix = "", + + .resetinterval = 3600 + }, +#endif + .chan = { + .context = "default", + .cid_num = "", + .cid_name = "", + .mohinterpret = "default", + .mohsuggest = "", + .transfertobusy = 1, + + .cid_signalling = CID_SIG_BELL, + .cid_start = CID_START_RING, + .dahditrcallerid = 0, + .use_callerid = 1, + .sig = -1, + .outsigmod = -1, + + .tonezone = -1, + + .echocancel = 1, + + .busycount = 3, + + .accountcode = "", + + .mailbox = "", + + + .polarityonanswerdelay = 600, + + .sendcalleridafter = DEFAULT_CIDRINGS, + + .buf_policy = DAHDI_POLICY_IMMEDIATE, + .buf_no = numbufs + }, + .timing = { + .prewinktime = -1, + .preflashtime = -1, + .winktime = -1, + .flashtime = -1, + .starttime = -1, + .rxwinktime = -1, + .rxflashtime = -1, + .debouncetime = -1 + }, + .smdi_port = "/dev/ttyS0", + }; + + return conf; +} + + +static struct ast_channel *dahdi_request(const char *type, int format, void *data, int *cause); +static int dahdi_digit_begin(struct ast_channel *ast, char digit); +static int dahdi_digit_end(struct ast_channel *ast, char digit, unsigned int duration); +static int dahdi_sendtext(struct ast_channel *c, const char *text); +static int dahdi_call(struct ast_channel *ast, char *rdest, int timeout); +static int dahdi_hangup(struct ast_channel *ast); +static int dahdi_answer(struct ast_channel *ast); +static struct ast_frame *dahdi_read(struct ast_channel *ast); +static int dahdi_write(struct ast_channel *ast, struct ast_frame *frame); +static struct ast_frame *dahdi_exception(struct ast_channel *ast); +static int dahdi_indicate(struct ast_channel *chan, int condition, const void *data, size_t datalen); +static int dahdi_fixup(struct ast_channel *oldchan, struct ast_channel *newchan); +static int dahdi_setoption(struct ast_channel *chan, int option, void *data, int datalen); +static int dahdi_func_read(struct ast_channel *chan, char *function, char *data, char *buf, size_t len); + +static const struct ast_channel_tech dahdi_tech = { + .type = "DAHDI", + .description = tdesc, + .capabilities = AST_FORMAT_SLINEAR | AST_FORMAT_ULAW | AST_FORMAT_ALAW, + .requester = dahdi_request, + .send_digit_begin = dahdi_digit_begin, + .send_digit_end = dahdi_digit_end, + .send_text = dahdi_sendtext, + .call = dahdi_call, + .hangup = dahdi_hangup, + .answer = dahdi_answer, + .read = dahdi_read, + .write = dahdi_write, + .bridge = dahdi_bridge, + .exception = dahdi_exception, + .indicate = dahdi_indicate, + .fixup = dahdi_fixup, + .setoption = dahdi_setoption, + .func_channel_read = dahdi_func_read, +}; + +static const struct ast_channel_tech zap_tech = { + .type = "Zap", + .description = tdesc, + .capabilities = AST_FORMAT_SLINEAR | AST_FORMAT_ULAW | AST_FORMAT_ALAW, + .requester = dahdi_request, + .send_digit_begin = dahdi_digit_begin, + .send_digit_end = dahdi_digit_end, + .send_text = dahdi_sendtext, + .call = dahdi_call, + .hangup = dahdi_hangup, + .answer = dahdi_answer, + .read = dahdi_read, + .write = dahdi_write, + .bridge = dahdi_bridge, + .exception = dahdi_exception, + .indicate = dahdi_indicate, + .fixup = dahdi_fixup, + .setoption = dahdi_setoption, + .func_channel_read = dahdi_func_read, +}; + +static const struct ast_channel_tech *chan_tech; + +#ifdef HAVE_PRI +#define GET_CHANNEL(p) ((p)->bearer ? (p)->bearer->channel : p->channel) +#else +#define GET_CHANNEL(p) ((p)->channel) +#endif + +struct dahdi_pvt *round_robin[32]; + +#ifdef HAVE_PRI +static inline int pri_grab(struct dahdi_pvt *pvt, struct dahdi_pri *pri) +{ + int res; + /* Grab the lock first */ + do { + res = ast_mutex_trylock(&pri->lock); + if (res) { + DEADLOCK_AVOIDANCE(&pvt->lock); + } + } while (res); + /* Then break the poll */ + if (pri->master != AST_PTHREADT_NULL) + pthread_kill(pri->master, SIGURG); + return 0; +} +#endif + +#define NUM_CADENCE_MAX 25 +static int num_cadence = 4; +static int user_has_defined_cadences = 0; + +static struct dahdi_ring_cadence cadences[NUM_CADENCE_MAX] = { + { { 125, 125, 2000, 4000 } }, /*!< Quick chirp followed by normal ring */ + { { 250, 250, 500, 1000, 250, 250, 500, 4000 } }, /*!< British style ring */ + { { 125, 125, 125, 125, 125, 4000 } }, /*!< Three short bursts */ + { { 1000, 500, 2500, 5000 } }, /*!< Long ring */ +}; + +/*! \brief cidrings says in which pause to transmit the cid information, where the first pause + * is 1, the second pause is 2 and so on. + */ + +static int cidrings[NUM_CADENCE_MAX] = { + 2, /*!< Right after first long ring */ + 4, /*!< Right after long part */ + 3, /*!< After third chirp */ + 2, /*!< Second spell */ +}; + +#define ISTRUNK(p) ((p->sig == SIG_FXSLS) || (p->sig == SIG_FXSKS) || \ + (p->sig == SIG_FXSGS) || (p->sig == SIG_PRI)) + +#define CANBUSYDETECT(p) (ISTRUNK(p) || (p->sig & (SIG_EM | SIG_EM_E1 | SIG_SF)) /* || (p->sig & __DAHDI_SIG_FXO) */) +#define CANPROGRESSDETECT(p) (ISTRUNK(p) || (p->sig & (SIG_EM | SIG_EM_E1 | SIG_SF)) /* || (p->sig & __DAHDI_SIG_FXO) */) + +static int dahdi_get_index(struct ast_channel *ast, struct dahdi_pvt *p, int nullok) +{ + int res; + if (p->subs[SUB_REAL].owner == ast) + res = 0; + else if (p->subs[SUB_CALLWAIT].owner == ast) + res = 1; + else if (p->subs[SUB_THREEWAY].owner == ast) + res = 2; + else { + res = -1; + if (!nullok) + ast_log(LOG_WARNING, "Unable to get index, and nullok is not asserted\n"); + } + return res; +} + +#ifdef HAVE_PRI +static void wakeup_sub(struct dahdi_pvt *p, int a, struct dahdi_pri *pri) +#else +static void wakeup_sub(struct dahdi_pvt *p, int a, void *pri) +#endif +{ +#ifdef HAVE_PRI + if (pri) + ast_mutex_unlock(&pri->lock); +#endif + for (;;) { + if (p->subs[a].owner) { + if (ast_mutex_trylock(&p->subs[a].owner->lock)) { + DEADLOCK_AVOIDANCE(&p->lock); + } else { + ast_queue_frame(p->subs[a].owner, &ast_null_frame); + ast_mutex_unlock(&p->subs[a].owner->lock); + break; + } + } else + break; + } +#ifdef HAVE_PRI + if (pri) + ast_mutex_lock(&pri->lock); +#endif +} + +#ifdef HAVE_PRI +static void dahdi_queue_frame(struct dahdi_pvt *p, struct ast_frame *f, struct dahdi_pri *pri) +#else +static void dahdi_queue_frame(struct dahdi_pvt *p, struct ast_frame *f, void *pri) +#endif +{ + /* We must unlock the PRI to avoid the possibility of a deadlock */ +#ifdef HAVE_PRI + if (pri) + ast_mutex_unlock(&pri->lock); +#endif + for (;;) { + if (p->owner) { + if (ast_mutex_trylock(&p->owner->lock)) { + DEADLOCK_AVOIDANCE(&p->lock); + } else { + ast_queue_frame(p->owner, f); + ast_mutex_unlock(&p->owner->lock); + break; + } + } else + break; + } +#ifdef HAVE_PRI + if (pri) + ast_mutex_lock(&pri->lock); +#endif +} + +static int restore_gains(struct dahdi_pvt *p); + +static void swap_subs(struct dahdi_pvt *p, int a, int b) +{ + int tchan; + int tinthreeway; + struct ast_channel *towner; + + ast_log(LOG_DEBUG, "Swapping %d and %d\n", a, b); + + tchan = p->subs[a].chan; + towner = p->subs[a].owner; + tinthreeway = p->subs[a].inthreeway; + + p->subs[a].chan = p->subs[b].chan; + p->subs[a].owner = p->subs[b].owner; + p->subs[a].inthreeway = p->subs[b].inthreeway; + + p->subs[b].chan = tchan; + p->subs[b].owner = towner; + p->subs[b].inthreeway = tinthreeway; + + if (p->subs[a].owner) + p->subs[a].owner->fds[0] = p->subs[a].dfd; + if (p->subs[b].owner) + p->subs[b].owner->fds[0] = p->subs[b].dfd; + wakeup_sub(p, a, NULL); + wakeup_sub(p, b, NULL); +} + +static int dahdi_open(char *fn) +{ + int fd; + int isnum; + int chan = 0; + int bs; + int x; + isnum = 1; + for (x = 0; x < strlen(fn); x++) { + if (!isdigit(fn[x])) { + isnum = 0; + break; + } + } + if (isnum) { + chan = atoi(fn); + if (chan < 1) { + ast_log(LOG_WARNING, "Invalid channel number '%s'\n", fn); + return -1; + } + fn = DAHDI_FILE_CHANNEL; + } + fd = open(fn, O_RDWR | O_NONBLOCK); + if (fd < 0) { + ast_log(LOG_WARNING, "Unable to open '%s': %s\n", fn, strerror(errno)); + return -1; + } + if (chan) { + if (ioctl(fd, DAHDI_SPECIFY, &chan)) { + x = errno; + close(fd); + errno = x; + ast_log(LOG_WARNING, "Unable to specify channel %d: %s\n", chan, strerror(errno)); + return -1; + } + } + bs = READ_SIZE; + if (ioctl(fd, DAHDI_SET_BLOCKSIZE, &bs) == -1) { + ast_log(LOG_WARNING, "Unable to set blocksize '%d': %s\n", bs, strerror(errno)); + x = errno; + close(fd); + errno = x; + return -1; + } + return fd; +} + +static void dahdi_close(int fd) +{ + if (fd > 0) + close(fd); +} + +static void dahdi_close_sub(struct dahdi_pvt *chan_pvt, int sub_num) +{ + dahdi_close(chan_pvt->subs[sub_num].dfd); + chan_pvt->subs[sub_num].dfd = -1; +} + +#ifdef HAVE_PRI +static void dahdi_close_pri_fd(struct dahdi_pri *pri, int fd_num) +{ + dahdi_close(pri->fds[fd_num]); + pri->fds[fd_num] = -1; +} +#endif + +static int dahdi_setlinear(int dfd, int linear) +{ + int res; + res = ioctl(dfd, DAHDI_SETLINEAR, &linear); + if (res) + return res; + return 0; +} + + +static int alloc_sub(struct dahdi_pvt *p, int x) +{ + struct dahdi_bufferinfo bi; + int res; + if (p->subs[x].dfd < 0) { + p->subs[x].dfd = dahdi_open(DAHDI_FILE_PSEUDO); + if (p->subs[x].dfd > -1) { + res = ioctl(p->subs[x].dfd, DAHDI_GET_BUFINFO, &bi); + if (!res) { + bi.txbufpolicy = p->buf_policy; + bi.rxbufpolicy = p->buf_policy; + bi.numbufs = p->buf_no; + res = ioctl(p->subs[x].dfd, DAHDI_SET_BUFINFO, &bi); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to set buffer policy on channel %d: %s\n", x, strerror(errno)); + } + } else + ast_log(LOG_WARNING, "Unable to check buffer policy on channel %d: %s\n", x, strerror(errno)); + if (ioctl(p->subs[x].dfd, DAHDI_CHANNO, &p->subs[x].chan) == 1) { + ast_log(LOG_WARNING, "Unable to get channel number for pseudo channel on FD %d: %s\n", p->subs[x].dfd, strerror(errno)); + dahdi_close_sub(p, x); + return -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Allocated %s subchannel on FD %d channel %d\n", subnames[x], p->subs[x].dfd, p->subs[x].chan); + return 0; + } else + ast_log(LOG_WARNING, "Unable to open pseudo channel: %s\n", strerror(errno)); + return -1; + } + ast_log(LOG_WARNING, "%s subchannel of %d already in use\n", subnames[x], p->channel); + return -1; +} + +static int unalloc_sub(struct dahdi_pvt *p, int x) +{ + if (!x) { + ast_log(LOG_WARNING, "Trying to unalloc the real channel %d?!?\n", p->channel); + return -1; + } + ast_log(LOG_DEBUG, "Released sub %d of channel %d\n", x, p->channel); + dahdi_close_sub(p, x); + p->subs[x].linear = 0; + p->subs[x].chan = 0; + p->subs[x].owner = NULL; + p->subs[x].inthreeway = 0; + p->polarity = POLARITY_IDLE; + memset(&p->subs[x].curconf, 0, sizeof(p->subs[x].curconf)); + return 0; +} + +static int digit_to_dtmfindex(char digit) +{ + if (isdigit(digit)) + return DAHDI_TONE_DTMF_BASE + (digit - '0'); + else if (digit >= 'A' && digit <= 'D') + return DAHDI_TONE_DTMF_A + (digit - 'A'); + else if (digit >= 'a' && digit <= 'd') + return DAHDI_TONE_DTMF_A + (digit - 'a'); + else if (digit == '*') + return DAHDI_TONE_DTMF_s; + else if (digit == '#') + return DAHDI_TONE_DTMF_p; + else + return -1; +} + +static int dahdi_digit_begin(struct ast_channel *chan, char digit) +{ + struct dahdi_pvt *pvt; + int index; + int dtmf = -1; + + pvt = chan->tech_pvt; + + ast_mutex_lock(&pvt->lock); + + index = dahdi_get_index(chan, pvt, 0); + + if ((index != SUB_REAL) || !pvt->owner) + goto out; + +#ifdef HAVE_PRI + if ((pvt->sig == SIG_PRI) && (chan->_state == AST_STATE_DIALING) && !pvt->proceeding) { + if (pvt->setup_ack) { + if (!pri_grab(pvt, pvt->pri)) { + pri_information(pvt->pri->pri, pvt->call, digit); + pri_rel(pvt->pri); + } else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", pvt->span); + } else if (strlen(pvt->dialdest) < sizeof(pvt->dialdest) - 1) { + int res; + ast_log(LOG_DEBUG, "Queueing digit '%c' since setup_ack not yet received\n", digit); + res = strlen(pvt->dialdest); + pvt->dialdest[res++] = digit; + pvt->dialdest[res] = '\0'; + } + goto out; + } +#endif + if ((dtmf = digit_to_dtmfindex(digit)) == -1) + goto out; + + if (pvt->pulse || ioctl(pvt->subs[SUB_REAL].dfd, DAHDI_SENDTONE, &dtmf)) { + int res; + struct dahdi_dialoperation zo = { + .op = DAHDI_DIAL_OP_APPEND, + .dialstr[0] = 'T', + .dialstr[1] = digit, + .dialstr[2] = 0, + }; + if ((res = ioctl(pvt->subs[SUB_REAL].dfd, DAHDI_DIAL, &zo))) + ast_log(LOG_WARNING, "Couldn't dial digit %c: %s\n", digit, strerror(errno)); + else + pvt->dialing = 1; + } else { + ast_log(LOG_DEBUG, "Started VLDTMF digit '%c'\n", digit); + pvt->dialing = 1; + pvt->begindigit = digit; + } + +out: + ast_mutex_unlock(&pvt->lock); + + return 0; +} + +static int dahdi_digit_end(struct ast_channel *chan, char digit, unsigned int duration) +{ + struct dahdi_pvt *pvt; + int res = 0; + int index; + int x; + + pvt = chan->tech_pvt; + + ast_mutex_lock(&pvt->lock); + + index = dahdi_get_index(chan, pvt, 0); + + if ((index != SUB_REAL) || !pvt->owner || pvt->pulse) + goto out; + +#ifdef HAVE_PRI + /* This means that the digit was already sent via PRI signalling */ + if (pvt->sig == SIG_PRI && !pvt->begindigit) + goto out; +#endif + + if (pvt->begindigit) { + x = -1; + ast_log(LOG_DEBUG, "Ending VLDTMF digit '%c'\n", digit); + res = ioctl(pvt->subs[SUB_REAL].dfd, DAHDI_SENDTONE, &x); + pvt->dialing = 0; + pvt->begindigit = 0; + } + +out: + ast_mutex_unlock(&pvt->lock); + + return res; +} + +static char *events[] = { + "No event", + "On hook", + "Ring/Answered", + "Wink/Flash", + "Alarm", + "No more alarm", + "HDLC Abort", + "HDLC Overrun", + "HDLC Bad FCS", + "Dial Complete", + "Ringer On", + "Ringer Off", + "Hook Transition Complete", + "Bits Changed", + "Pulse Start", + "Timer Expired", + "Timer Ping", + "Polarity Reversal", + "Ring Begin", +}; + +static struct { + int alarm; + char *name; +} alarms[] = { + { DAHDI_ALARM_RED, "Red Alarm" }, + { DAHDI_ALARM_YELLOW, "Yellow Alarm" }, + { DAHDI_ALARM_BLUE, "Blue Alarm" }, + { DAHDI_ALARM_RECOVER, "Recovering" }, + { DAHDI_ALARM_LOOPBACK, "Loopback" }, + { DAHDI_ALARM_NOTOPEN, "Not Open" }, + { DAHDI_ALARM_NONE, "None" }, +}; + +static char *alarm2str(int alarm) +{ + int x; + for (x = 0; x < sizeof(alarms) / sizeof(alarms[0]); x++) { + if (alarms[x].alarm & alarm) + return alarms[x].name; + } + return alarm ? "Unknown Alarm" : "No Alarm"; +} + +static char *event2str(int event) +{ + static char buf[256]; + if ((event < (sizeof(events) / sizeof(events[0]))) && (event > -1)) + return events[event]; + sprintf(buf, "Event %d", event); /* safe */ + return buf; +} + +#ifdef HAVE_PRI +static char *dialplan2str(int dialplan) +{ + if (dialplan == -1) { + return("Dynamically set dialplan in ISDN"); + } + return (pri_plan2str(dialplan)); +} +#endif + +static char *dahdi_sig2str(int sig) +{ + static char buf[256]; + switch (sig) { + case SIG_EM: + return "E & M Immediate"; + case SIG_EMWINK: + return "E & M Wink"; + case SIG_EM_E1: + return "E & M E1"; + case SIG_FEATD: + return "Feature Group D (DTMF)"; + case SIG_FEATDMF: + return "Feature Group D (MF)"; + case SIG_FEATDMF_TA: + return "Feature Groud D (MF) Tandem Access"; + case SIG_FEATB: + return "Feature Group B (MF)"; + case SIG_E911: + return "E911 (MF)"; + case SIG_FGC_CAMA: + return "FGC/CAMA (Dialpulse)"; + case SIG_FGC_CAMAMF: + return "FGC/CAMA (MF)"; + case SIG_FXSLS: + return "FXS Loopstart"; + case SIG_FXSGS: + return "FXS Groundstart"; + case SIG_FXSKS: + return "FXS Kewlstart"; + case SIG_FXOLS: + return "FXO Loopstart"; + case SIG_FXOGS: + return "FXO Groundstart"; + case SIG_FXOKS: + return "FXO Kewlstart"; + case SIG_PRI: + return "ISDN PRI"; + case SIG_SF: + return "SF (Tone) Immediate"; + case SIG_SFWINK: + return "SF (Tone) Wink"; + case SIG_SF_FEATD: + return "SF (Tone) with Feature Group D (DTMF)"; + case SIG_SF_FEATDMF: + return "SF (Tone) with Feature Group D (MF)"; + case SIG_SF_FEATB: + return "SF (Tone) with Feature Group B (MF)"; + case SIG_GR303FXOKS: + return "GR-303 with FXOKS"; + case SIG_GR303FXSKS: + return "GR-303 with FXSKS"; + case 0: + return "Pseudo"; + default: + snprintf(buf, sizeof(buf), "Unknown signalling %d", sig); + return buf; + } +} + +#define sig2str dahdi_sig2str + +static int conf_add(struct dahdi_pvt *p, struct dahdi_subchannel *c, int index, int slavechannel) +{ + /* If the conference already exists, and we're already in it + don't bother doing anything */ + struct dahdi_confinfo zi; + + memset(&zi, 0, sizeof(zi)); + zi.chan = 0; + + if (slavechannel > 0) { + /* If we have only one slave, do a digital mon */ + zi.confmode = DAHDI_CONF_DIGITALMON; + zi.confno = slavechannel; + } else { + if (!index) { + /* Real-side and pseudo-side both participate in conference */ + zi.confmode = DAHDI_CONF_REALANDPSEUDO | DAHDI_CONF_TALKER | DAHDI_CONF_LISTENER | + DAHDI_CONF_PSEUDO_TALKER | DAHDI_CONF_PSEUDO_LISTENER; + } else + zi.confmode = DAHDI_CONF_CONF | DAHDI_CONF_TALKER | DAHDI_CONF_LISTENER; + zi.confno = p->confno; + } + if ((zi.confno == c->curconf.confno) && (zi.confmode == c->curconf.confmode)) + return 0; + if (c->dfd < 0) + return 0; + if (ioctl(c->dfd, DAHDI_SETCONF, &zi)) { + ast_log(LOG_WARNING, "Failed to add %d to conference %d/%d: %s\n", c->dfd, zi.confmode, zi.confno, strerror(errno)); + return -1; + } + if (slavechannel < 1) { + p->confno = zi.confno; + } + memcpy(&c->curconf, &zi, sizeof(c->curconf)); + ast_log(LOG_DEBUG, "Added %d to conference %d/%d\n", c->dfd, c->curconf.confmode, c->curconf.confno); + return 0; +} + +static int isourconf(struct dahdi_pvt *p, struct dahdi_subchannel *c) +{ + /* If they're listening to our channel, they're ours */ + if ((p->channel == c->curconf.confno) && (c->curconf.confmode == DAHDI_CONF_DIGITALMON)) + return 1; + /* If they're a talker on our (allocated) conference, they're ours */ + if ((p->confno > 0) && (p->confno == c->curconf.confno) && (c->curconf.confmode & DAHDI_CONF_TALKER)) + return 1; + return 0; +} + +static int conf_del(struct dahdi_pvt *p, struct dahdi_subchannel *c, int index) +{ + struct dahdi_confinfo zi; + if (/* Can't delete if there's no dfd */ + (c->dfd < 0) || + /* Don't delete from the conference if it's not our conference */ + !isourconf(p, c) + /* Don't delete if we don't think it's conferenced at all (implied) */ + ) return 0; + memset(&zi, 0, sizeof(zi)); + zi.chan = 0; + zi.confno = 0; + zi.confmode = 0; + if (ioctl(c->dfd, DAHDI_SETCONF, &zi)) { + ast_log(LOG_WARNING, "Failed to drop %d from conference %d/%d: %s\n", c->dfd, c->curconf.confmode, c->curconf.confno, strerror(errno)); + return -1; + } + ast_log(LOG_DEBUG, "Removed %d from conference %d/%d\n", c->dfd, c->curconf.confmode, c->curconf.confno); + memcpy(&c->curconf, &zi, sizeof(c->curconf)); + return 0; +} + +static int isslavenative(struct dahdi_pvt *p, struct dahdi_pvt **out) +{ + int x; + int useslavenative; + struct dahdi_pvt *slave = NULL; + /* Start out optimistic */ + useslavenative = 1; + /* Update conference state in a stateless fashion */ + for (x = 0; x < 3; x++) { + /* Any three-way calling makes slave native mode *definitely* out + of the question */ + if ((p->subs[x].dfd > -1) && p->subs[x].inthreeway) + useslavenative = 0; + } + /* If we don't have any 3-way calls, check to see if we have + precisely one slave */ + if (useslavenative) { + for (x = 0; x < MAX_SLAVES; x++) { + if (p->slaves[x]) { + if (slave) { + /* Whoops already have a slave! No + slave native and stop right away */ + slave = NULL; + useslavenative = 0; + break; + } else { + /* We have one slave so far */ + slave = p->slaves[x]; + } + } + } + } + /* If no slave, slave native definitely out */ + if (!slave) + useslavenative = 0; + else if (slave->law != p->law) { + useslavenative = 0; + slave = NULL; + } + if (out) + *out = slave; + return useslavenative; +} + +static int reset_conf(struct dahdi_pvt *p) +{ + struct dahdi_confinfo zi; + memset(&zi, 0, sizeof(zi)); + p->confno = -1; + memset(&p->subs[SUB_REAL].curconf, 0, sizeof(p->subs[SUB_REAL].curconf)); + if (p->subs[SUB_REAL].dfd > -1) { + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCONF, &zi)) + ast_log(LOG_WARNING, "Failed to reset conferencing on channel %d: %s\n", p->channel, strerror(errno)); + } + return 0; +} + +static int update_conf(struct dahdi_pvt *p) +{ + int needconf = 0; + int x; + int useslavenative; + struct dahdi_pvt *slave = NULL; + + useslavenative = isslavenative(p, &slave); + /* Start with the obvious, general stuff */ + for (x = 0; x < 3; x++) { + /* Look for three way calls */ + if ((p->subs[x].dfd > -1) && p->subs[x].inthreeway) { + conf_add(p, &p->subs[x], x, 0); + needconf++; + } else { + conf_del(p, &p->subs[x], x); + } + } + /* If we have a slave, add him to our conference now. or DAX + if this is slave native */ + for (x = 0; x < MAX_SLAVES; x++) { + if (p->slaves[x]) { + if (useslavenative) + conf_add(p, &p->slaves[x]->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(p)); + else { + conf_add(p, &p->slaves[x]->subs[SUB_REAL], SUB_REAL, 0); + needconf++; + } + } + } + /* If we're supposed to be in there, do so now */ + if (p->inconference && !p->subs[SUB_REAL].inthreeway) { + if (useslavenative) + conf_add(p, &p->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(slave)); + else { + conf_add(p, &p->subs[SUB_REAL], SUB_REAL, 0); + needconf++; + } + } + /* If we have a master, add ourselves to his conference */ + if (p->master) { + if (isslavenative(p->master, NULL)) { + conf_add(p->master, &p->subs[SUB_REAL], SUB_REAL, GET_CHANNEL(p->master)); + } else { + conf_add(p->master, &p->subs[SUB_REAL], SUB_REAL, 0); + } + } + if (!needconf) { + /* Nobody is left (or should be left) in our conference. + Kill it. */ + p->confno = -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Updated conferencing on %d, with %d conference users\n", p->channel, needconf); + return 0; +} + +static void dahdi_enable_ec(struct dahdi_pvt *p) +{ + int x; + int res; + if (!p) + return; + if (p->echocanon) { + ast_log(LOG_DEBUG, "Echo cancellation already on\n"); + return; + } + if (p->digital) { + ast_log(LOG_DEBUG, "Echo cancellation isn't required on digital connection\n"); + return; + } + if (p->echocancel) { + if (p->sig == SIG_PRI) { + x = 1; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &x); + if (res) + ast_log(LOG_WARNING, "Unable to enable audio mode on channel %d (%s)\n", p->channel, strerror(errno)); + } + x = p->echocancel; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_ECHOCANCEL, &x); + if (res) + ast_log(LOG_WARNING, "Unable to enable echo cancellation on channel %d (%s)\n", p->channel, strerror(errno)); + else { + p->echocanon = 1; + if (option_debug) + ast_log(LOG_DEBUG, "Enabled echo cancellation on channel %d\n", p->channel); + } + } else if (option_debug) + ast_log(LOG_DEBUG, "No echo cancellation requested\n"); +} + +static void dahdi_train_ec(struct dahdi_pvt *p) +{ + int x; + int res; + if (p && p->echocancel && p->echotraining) { + x = p->echotraining; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_ECHOTRAIN, &x); + if (res) + ast_log(LOG_WARNING, "Unable to request echo training on channel %d: %s\n", p->channel, strerror(errno)); + else { + ast_log(LOG_DEBUG, "Engaged echo training on channel %d\n", p->channel); + } + } else + ast_log(LOG_DEBUG, "No echo training requested\n"); +} + +static void dahdi_disable_ec(struct dahdi_pvt *p) +{ + int x; + int res; + if (p->echocancel) { + x = 0; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_ECHOCANCEL, &x); + if (res) + ast_log(LOG_WARNING, "Unable to disable echo cancellation on channel %d: %s\n", p->channel, strerror(errno)); + else if (option_debug) + ast_log(LOG_DEBUG, "disabled echo cancellation on channel %d\n", p->channel); + } + p->echocanon = 0; +} + +static void fill_txgain(struct dahdi_gains *g, float gain, int law) +{ + int j; + int k; + float linear_gain = pow(10.0, gain / 20.0); + + switch (law) { + case DAHDI_LAW_ALAW: + for (j = 0; j < (sizeof(g->txgain) / sizeof(g->txgain[0])); j++) { + if (gain) { + k = (int) (((float) AST_ALAW(j)) * linear_gain); + if (k > 32767) k = 32767; + if (k < -32767) k = -32767; + g->txgain[j] = AST_LIN2A(k); + } else { + g->txgain[j] = j; + } + } + break; + case DAHDI_LAW_MULAW: + for (j = 0; j < (sizeof(g->txgain) / sizeof(g->txgain[0])); j++) { + if (gain) { + k = (int) (((float) AST_MULAW(j)) * linear_gain); + if (k > 32767) k = 32767; + if (k < -32767) k = -32767; + g->txgain[j] = AST_LIN2MU(k); + } else { + g->txgain[j] = j; + } + } + break; + } +} + +static void fill_rxgain(struct dahdi_gains *g, float gain, int law) +{ + int j; + int k; + float linear_gain = pow(10.0, gain / 20.0); + + switch (law) { + case DAHDI_LAW_ALAW: + for (j = 0; j < (sizeof(g->rxgain) / sizeof(g->rxgain[0])); j++) { + if (gain) { + k = (int) (((float) AST_ALAW(j)) * linear_gain); + if (k > 32767) k = 32767; + if (k < -32767) k = -32767; + g->rxgain[j] = AST_LIN2A(k); + } else { + g->rxgain[j] = j; + } + } + break; + case DAHDI_LAW_MULAW: + for (j = 0; j < (sizeof(g->rxgain) / sizeof(g->rxgain[0])); j++) { + if (gain) { + k = (int) (((float) AST_MULAW(j)) * linear_gain); + if (k > 32767) k = 32767; + if (k < -32767) k = -32767; + g->rxgain[j] = AST_LIN2MU(k); + } else { + g->rxgain[j] = j; + } + } + break; + } +} + +static int set_actual_txgain(int fd, int chan, float gain, int law) +{ + struct dahdi_gains g; + int res; + + memset(&g, 0, sizeof(g)); + g.chan = chan; + res = ioctl(fd, DAHDI_GETGAINS, &g); + if (res) { + if (option_debug) + ast_log(LOG_DEBUG, "Failed to read gains: %s\n", strerror(errno)); + return res; + } + + fill_txgain(&g, gain, law); + + return ioctl(fd, DAHDI_SETGAINS, &g); +} + +static int set_actual_rxgain(int fd, int chan, float gain, int law) +{ + struct dahdi_gains g; + int res; + + memset(&g, 0, sizeof(g)); + g.chan = chan; + res = ioctl(fd, DAHDI_GETGAINS, &g); + if (res) { + ast_log(LOG_DEBUG, "Failed to read gains: %s\n", strerror(errno)); + return res; + } + + fill_rxgain(&g, gain, law); + + return ioctl(fd, DAHDI_SETGAINS, &g); +} + +static int set_actual_gain(int fd, int chan, float rxgain, float txgain, int law) +{ + return set_actual_txgain(fd, chan, txgain, law) | set_actual_rxgain(fd, chan, rxgain, law); +} + +static int bump_gains(struct dahdi_pvt *p) +{ + int res; + + /* Bump receive gain by 5.0db */ + res = set_actual_gain(p->subs[SUB_REAL].dfd, 0, p->rxgain + 5.0, p->txgain, p->law); + if (res) { + ast_log(LOG_WARNING, "Unable to bump gain: %s\n", strerror(errno)); + return -1; + } + + return 0; +} + +static int restore_gains(struct dahdi_pvt *p) +{ + int res; + + res = set_actual_gain(p->subs[SUB_REAL].dfd, 0, p->rxgain, p->txgain, p->law); + if (res) { + ast_log(LOG_WARNING, "Unable to restore gains: %s\n", strerror(errno)); + return -1; + } + + return 0; +} + +static inline int dahdi_set_hook(int fd, int hs) +{ + int x, res; + + x = hs; + res = ioctl(fd, DAHDI_HOOK, &x); + + if (res < 0) { + if (errno == EINPROGRESS) + return 0; + ast_log(LOG_WARNING, "DAHDI hook failed returned %d (trying %d): %s\n", res, hs, strerror(errno)); + /* will expectedly fail if phone is off hook during operation, such as during a restart */ + } + + return res; +} + +static inline int dahdi_confmute(struct dahdi_pvt *p, int muted) +{ + int x, y, res; + x = muted; + if (p->sig == SIG_PRI) { + y = 1; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &y); + if (res) + ast_log(LOG_WARNING, "Unable to set audio mode on %d: %s\n", p->channel, strerror(errno)); + } + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_CONFMUTE, &x); + if (res < 0) + ast_log(LOG_WARNING, "dahdi confmute(%d) failed on channel %d: %s\n", muted, p->channel, strerror(errno)); + return res; +} + +static int save_conference(struct dahdi_pvt *p) +{ + struct dahdi_confinfo c; + int res; + if (p->saveconf.confmode) { + ast_log(LOG_WARNING, "Can't save conference -- already in use\n"); + return -1; + } + p->saveconf.chan = 0; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GETCONF, &p->saveconf); + if (res) { + ast_log(LOG_WARNING, "Unable to get conference info: %s\n", strerror(errno)); + p->saveconf.confmode = 0; + return -1; + } + c.chan = 0; + c.confno = 0; + c.confmode = DAHDI_CONF_NORMAL; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCONF, &c); + if (res) { + ast_log(LOG_WARNING, "Unable to set conference info: %s\n", strerror(errno)); + return -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Disabled conferencing\n"); + return 0; +} + +static int restore_conference(struct dahdi_pvt *p) +{ + int res; + if (p->saveconf.confmode) { + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCONF, &p->saveconf); + p->saveconf.confmode = 0; + if (res) { + ast_log(LOG_WARNING, "Unable to restore conference info: %s\n", strerror(errno)); + return -1; + } + } + if (option_debug) + ast_log(LOG_DEBUG, "Restored conferencing\n"); + return 0; +} + +static int send_callerid(struct dahdi_pvt *p); + +static int send_cwcidspill(struct dahdi_pvt *p) +{ + p->callwaitcas = 0; + p->cidcwexpire = 0; + if (!(p->cidspill = ast_malloc(MAX_CALLERID_SIZE))) + return -1; + p->cidlen = ast_callerid_callwaiting_generate(p->cidspill, p->callwait_name, p->callwait_num, AST_LAW(p)); + /* Make sure we account for the end */ + p->cidlen += READ_SIZE * 4; + p->cidpos = 0; + send_callerid(p); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "CPE supports Call Waiting Caller*ID. Sending '%s/%s'\n", p->callwait_name, p->callwait_num); + return 0; +} + +static int has_voicemail(struct dahdi_pvt *p) +{ + + return ast_app_has_voicemail(p->mailbox, NULL); +} + +static int send_callerid(struct dahdi_pvt *p) +{ + /* Assumes spill in p->cidspill, p->cidlen in length and we're p->cidpos into it */ + int res; + /* Take out of linear mode if necessary */ + if (p->subs[SUB_REAL].linear) { + p->subs[SUB_REAL].linear = 0; + dahdi_setlinear(p->subs[SUB_REAL].dfd, 0); + } + while (p->cidpos < p->cidlen) { + res = write(p->subs[SUB_REAL].dfd, p->cidspill + p->cidpos, p->cidlen - p->cidpos); + if (res < 0) { + if (errno == EAGAIN) + return 0; + else { + ast_log(LOG_WARNING, "write failed: %s\n", strerror(errno)); + return -1; + } + } + if (!res) + return 0; + p->cidpos += res; + } + free(p->cidspill); + p->cidspill = NULL; + if (p->callwaitcas) { + /* Wait for CID/CW to expire */ + p->cidcwexpire = CIDCW_EXPIRE_SAMPLES; + } else + restore_conference(p); + return 0; +} + +static int dahdi_callwait(struct ast_channel *ast) +{ + struct dahdi_pvt *p = ast->tech_pvt; + p->callwaitingrepeat = CALLWAITING_REPEAT_SAMPLES; + if (p->cidspill) { + ast_log(LOG_WARNING, "Spill already exists?!?\n"); + free(p->cidspill); + } + if (!(p->cidspill = ast_malloc(2400 /* SAS */ + 680 /* CAS */ + READ_SIZE * 4))) + return -1; + save_conference(p); + /* Silence */ + memset(p->cidspill, 0x7f, 2400 + 600 + READ_SIZE * 4); + if (!p->callwaitrings && p->callwaitingcallerid) { + ast_gen_cas(p->cidspill, 1, 2400 + 680, AST_LAW(p)); + p->callwaitcas = 1; + p->cidlen = 2400 + 680 + READ_SIZE * 4; + } else { + ast_gen_cas(p->cidspill, 1, 2400, AST_LAW(p)); + p->callwaitcas = 0; + p->cidlen = 2400 + READ_SIZE * 4; + } + p->cidpos = 0; + send_callerid(p); + + return 0; +} + +static int dahdi_call(struct ast_channel *ast, char *rdest, int timeout) +{ + struct dahdi_pvt *p = ast->tech_pvt; + int x, res, index,mysig; + char *c, *n, *l; +#ifdef HAVE_PRI + char *s = NULL; +#endif + char dest[256]; /* must be same length as p->dialdest */ + ast_mutex_lock(&p->lock); + ast_copy_string(dest, rdest, sizeof(dest)); + ast_copy_string(p->dialdest, rdest, sizeof(p->dialdest)); + if ((ast->_state == AST_STATE_BUSY)) { + p->subs[SUB_REAL].needbusy = 1; + ast_mutex_unlock(&p->lock); + return 0; + } + if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) { + ast_log(LOG_WARNING, "dahdi_call called on %s, neither down nor reserved\n", ast->name); + ast_mutex_unlock(&p->lock); + return -1; + } + p->dialednone = 0; + if ((p->radio || (p->oprmode < 0))) /* if a radio channel, up immediately */ + { + /* Special pseudo -- automatically up */ + ast_setstate(ast, AST_STATE_UP); + ast_mutex_unlock(&p->lock); + return 0; + } + x = DAHDI_FLUSH_READ | DAHDI_FLUSH_WRITE; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_FLUSH, &x); + if (res) + ast_log(LOG_WARNING, "Unable to flush input on channel %d: %s\n", p->channel, strerror(errno)); + p->outgoing = 1; + + set_actual_gain(p->subs[SUB_REAL].dfd, 0, p->rxgain, p->txgain, p->law); + + mysig = p->sig; + if (p->outsigmod > -1) + mysig = p->outsigmod; + + switch (mysig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + if (p->owner == ast) { + /* Normal ring, on hook */ + + /* Don't send audio while on hook, until the call is answered */ + p->dialing = 1; + if (p->use_callerid) { + /* Generate the Caller-ID spill if desired */ + if (p->cidspill) { + ast_log(LOG_WARNING, "cidspill already exists??\n"); + free(p->cidspill); + } + p->callwaitcas = 0; + if ((p->cidspill = ast_malloc(MAX_CALLERID_SIZE))) { + p->cidlen = ast_callerid_generate(p->cidspill, ast->cid.cid_name, ast->cid.cid_num, AST_LAW(p)); + p->cidpos = 0; + send_callerid(p); + } + } + /* Choose proper cadence */ + if ((p->distinctivering > 0) && (p->distinctivering <= num_cadence)) { + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCADENCE, &cadences[p->distinctivering - 1])) + ast_log(LOG_WARNING, "Unable to set distinctive ring cadence %d on '%s': %s\n", p->distinctivering, ast->name, strerror(errno)); + p->cidrings = cidrings[p->distinctivering - 1]; + } else { + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETCADENCE, NULL)) + ast_log(LOG_WARNING, "Unable to reset default ring on '%s': %s\n", ast->name, strerror(errno)); + p->cidrings = p->sendcalleridafter; + } + + /* nick@dccinc.com 4/3/03 mods to allow for deferred dialing */ + c = strchr(dest, '/'); + if (c) + c++; + if (c && (strlen(c) < p->stripmsd)) { + ast_log(LOG_WARNING, "Number '%s' is shorter than stripmsd (%d)\n", c, p->stripmsd); + c = NULL; + } + if (c) { + p->dop.op = DAHDI_DIAL_OP_REPLACE; + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "Tw%s", c); + ast_log(LOG_DEBUG, "FXO: setup deferred dialstring: %s\n", c); + } else { + p->dop.dialstr[0] = '\0'; + } + x = DAHDI_RING; + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x) && (errno != EINPROGRESS)) { + ast_log(LOG_WARNING, "Unable to ring phone: %s\n", strerror(errno)); + ast_mutex_unlock(&p->lock); + return -1; + } + p->dialing = 1; + } else { + /* Call waiting call */ + p->callwaitrings = 0; + if (ast->cid.cid_num) + ast_copy_string(p->callwait_num, ast->cid.cid_num, sizeof(p->callwait_num)); + else + p->callwait_num[0] = '\0'; + if (ast->cid.cid_name) + ast_copy_string(p->callwait_name, ast->cid.cid_name, sizeof(p->callwait_name)); + else + p->callwait_name[0] = '\0'; + /* Call waiting tone instead */ + if (dahdi_callwait(ast)) { + ast_mutex_unlock(&p->lock); + return -1; + } + /* Make ring-back */ + if (tone_zone_play_tone(p->subs[SUB_CALLWAIT].dfd, DAHDI_TONE_RINGTONE)) + ast_log(LOG_WARNING, "Unable to generate call-wait ring-back on channel %s\n", ast->name); + + } + n = ast->cid.cid_name; + l = ast->cid.cid_num; + if (l) + ast_copy_string(p->lastcid_num, l, sizeof(p->lastcid_num)); + else + p->lastcid_num[0] = '\0'; + if (n) + ast_copy_string(p->lastcid_name, n, sizeof(p->lastcid_name)); + else + p->lastcid_name[0] = '\0'; + ast_setstate(ast, AST_STATE_RINGING); + index = dahdi_get_index(ast, p, 0); + if (index > -1) { + p->subs[index].needringing = 1; + } + break; + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + case SIG_EMWINK: + case SIG_EM: + case SIG_EM_E1: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_SFWINK: + case SIG_SF: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_SF_FEATB: + c = strchr(dest, '/'); + if (c) + c++; + else + c = ""; + if (strlen(c) < p->stripmsd) { + ast_log(LOG_WARNING, "Number '%s' is shorter than stripmsd (%d)\n", c, p->stripmsd); + ast_mutex_unlock(&p->lock); + return -1; + } +#ifdef HAVE_PRI + /* Start the trunk, if not GR-303 */ + if (!p->pri) { +#endif + x = DAHDI_START; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + if (res < 0) { + if (errno != EINPROGRESS) { + ast_log(LOG_WARNING, "Unable to start channel: %s\n", strerror(errno)); + ast_mutex_unlock(&p->lock); + return -1; + } + } +#ifdef HAVE_PRI + } +#endif + ast_log(LOG_DEBUG, "Dialing '%s'\n", c); + p->dop.op = DAHDI_DIAL_OP_REPLACE; + + c += p->stripmsd; + + switch (mysig) { + case SIG_FEATD: + l = ast->cid.cid_num; + if (l) + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "T*%s*%s*", l, c); + else + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "T**%s*", c); + break; + case SIG_FEATDMF: + l = ast->cid.cid_num; + if (l) + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*00%s#*%s#", l, c); + else + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*02#*%s#", c); + break; + case SIG_FEATDMF_TA: + { + const char *cic, *ozz; + + /* If you have to go through a Tandem Access point you need to use this */ + ozz = pbx_builtin_getvar_helper(p->owner, "FEATDMF_OZZ"); + if (!ozz) + ozz = defaultozz; + cic = pbx_builtin_getvar_helper(p->owner, "FEATDMF_CIC"); + if (!cic) + cic = defaultcic; + if (!ozz || !cic) { + ast_log(LOG_WARNING, "Unable to dial channel of type feature group D MF tandem access without CIC or OZZ set\n"); + ast_mutex_unlock(&p->lock); + return -1; + } + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*%s%s#", ozz, cic); + snprintf(p->finaldial, sizeof(p->finaldial), "M*%s#", c); + p->whichwink = 0; + } + break; + case SIG_E911: + ast_copy_string(p->dop.dialstr, "M*911#", sizeof(p->dop.dialstr)); + break; + case SIG_FGC_CAMA: + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "P%s", c); + break; + case SIG_FGC_CAMAMF: + case SIG_FEATB: + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*%s#", c); + break; + default: + if (p->pulse) + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "P%sw", c); + else + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "T%sw", c); + break; + } + + if (p->echotraining && (strlen(p->dop.dialstr) > 4)) { + memset(p->echorest, 'w', sizeof(p->echorest) - 1); + strcpy(p->echorest + (p->echotraining / 400) + 1, p->dop.dialstr + strlen(p->dop.dialstr) - 2); + p->echorest[sizeof(p->echorest) - 1] = '\0'; + p->echobreak = 1; + p->dop.dialstr[strlen(p->dop.dialstr)-2] = '\0'; + } else + p->echobreak = 0; + if (!res) { + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop)) { + int saveerr = errno; + + x = DAHDI_ONHOOK; + ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + ast_log(LOG_WARNING, "Dialing failed on channel %d: %s\n", p->channel, strerror(saveerr)); + ast_mutex_unlock(&p->lock); + return -1; + } + } else + ast_log(LOG_DEBUG, "Deferring dialing...\n"); + p->dialing = 1; + if (ast_strlen_zero(c)) + p->dialednone = 1; + ast_setstate(ast, AST_STATE_DIALING); + break; + case 0: + /* Special pseudo -- automatically up*/ + ast_setstate(ast, AST_STATE_UP); + break; + case SIG_PRI: + /* We'll get it in a moment -- but use dialdest to store pre-setup_ack digits */ + p->dialdest[0] = '\0'; + break; + default: + ast_log(LOG_DEBUG, "not yet implemented\n"); + ast_mutex_unlock(&p->lock); + return -1; + } +#ifdef HAVE_PRI + if (p->pri) { + struct pri_sr *sr; +#ifdef SUPPORT_USERUSER + const char *useruser; +#endif + int pridialplan; + int dp_strip; + int prilocaldialplan; + int ldp_strip; + int exclusive; + const char *rr_str; + int redirect_reason; + + c = strchr(dest, '/'); + if (c) + c++; + else + c = dest; + + l = NULL; + n = NULL; + + if (!p->hidecallerid) { + l = ast->cid.cid_num; + if (!p->hidecalleridname) { + n = ast->cid.cid_name; + } + } + + + if (strlen(c) < p->stripmsd) { + ast_log(LOG_WARNING, "Number '%s' is shorter than stripmsd (%d)\n", c, p->stripmsd); + ast_mutex_unlock(&p->lock); + return -1; + } + if (mysig != SIG_FXSKS) { + p->dop.op = DAHDI_DIAL_OP_REPLACE; + s = strchr(c + p->stripmsd, 'w'); + if (s) { + if (strlen(s) > 1) + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "T%s", s); + else + p->dop.dialstr[0] = '\0'; + *s = '\0'; + } else { + p->dop.dialstr[0] = '\0'; + } + } + if (pri_grab(p, p->pri)) { + ast_log(LOG_WARNING, "Failed to grab PRI!\n"); + ast_mutex_unlock(&p->lock); + return -1; + } + if (!(p->call = pri_new_call(p->pri->pri))) { + ast_log(LOG_WARNING, "Unable to create call on channel %d\n", p->channel); + pri_rel(p->pri); + ast_mutex_unlock(&p->lock); + return -1; + } + if (!(sr = pri_sr_new())) { + ast_log(LOG_WARNING, "Failed to allocate setup request channel %d\n", p->channel); + pri_destroycall(p->pri->pri, p->call); + p->call = NULL; + pri_rel(p->pri); + ast_mutex_unlock(&p->lock); + return -1; + } + if (p->bearer || (mysig == SIG_FXSKS)) { + if (p->bearer) { + ast_log(LOG_DEBUG, "Oooh, I have a bearer on %d (%d:%d)\n", PVT_TO_CHANNEL(p->bearer), p->bearer->logicalspan, p->bearer->channel); + p->bearer->call = p->call; + } else + ast_log(LOG_DEBUG, "I'm being setup with no bearer right now...\n"); + pri_set_crv(p->pri->pri, p->call, p->channel, 0); + } + p->digital = IS_DIGITAL(ast->transfercapability); + /* Add support for exclusive override */ + if (p->priexclusive) + exclusive = 1; + else { + /* otherwise, traditional behavior */ + if (p->pri->nodetype == PRI_NETWORK) + exclusive = 0; + else + exclusive = 1; + } + + pri_sr_set_channel(sr, p->bearer ? PVT_TO_CHANNEL(p->bearer) : PVT_TO_CHANNEL(p), exclusive, 1); + pri_sr_set_bearer(sr, p->digital ? PRI_TRANS_CAP_DIGITAL : ast->transfercapability, + (p->digital ? -1 : + ((p->law == DAHDI_LAW_ALAW) ? PRI_LAYER_1_ALAW : PRI_LAYER_1_ULAW))); + if (p->pri->facilityenable) + pri_facility_enable(p->pri->pri); + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Requested transfer capability: 0x%.2x - %s\n", ast->transfercapability, ast_transfercapability2str(ast->transfercapability)); + dp_strip = 0; + pridialplan = p->pri->dialplan - 1; + if (pridialplan == -2) { /* compute dynamically */ + if (strncmp(c + p->stripmsd, p->pri->internationalprefix, strlen(p->pri->internationalprefix)) == 0) { + dp_strip = strlen(p->pri->internationalprefix); + pridialplan = PRI_INTERNATIONAL_ISDN; + } else if (strncmp(c + p->stripmsd, p->pri->nationalprefix, strlen(p->pri->nationalprefix)) == 0) { + dp_strip = strlen(p->pri->nationalprefix); + pridialplan = PRI_NATIONAL_ISDN; + } else { + pridialplan = PRI_LOCAL_ISDN; + } + } + pri_sr_set_called(sr, c + p->stripmsd + dp_strip, pridialplan, s ? 1 : 0); + + ldp_strip = 0; + prilocaldialplan = p->pri->localdialplan - 1; + if ((l != NULL) && (prilocaldialplan == -2)) { /* compute dynamically */ + if (strncmp(l, p->pri->internationalprefix, strlen(p->pri->internationalprefix)) == 0) { + ldp_strip = strlen(p->pri->internationalprefix); + prilocaldialplan = PRI_INTERNATIONAL_ISDN; + } else if (strncmp(l, p->pri->nationalprefix, strlen(p->pri->nationalprefix)) == 0) { + ldp_strip = strlen(p->pri->nationalprefix); + prilocaldialplan = PRI_NATIONAL_ISDN; + } else { + prilocaldialplan = PRI_LOCAL_ISDN; + } + } + pri_sr_set_caller(sr, l ? (l + ldp_strip) : NULL, n, prilocaldialplan, + p->use_callingpres ? ast->cid.cid_pres : (l ? PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN : PRES_NUMBER_NOT_AVAILABLE)); + if ((rr_str = pbx_builtin_getvar_helper(ast, "PRIREDIRECTREASON"))) { + if (!strcasecmp(rr_str, "UNKNOWN")) + redirect_reason = 0; + else if (!strcasecmp(rr_str, "BUSY")) + redirect_reason = 1; + else if (!strcasecmp(rr_str, "NO_REPLY")) + redirect_reason = 2; + else if (!strcasecmp(rr_str, "UNCONDITIONAL")) + redirect_reason = 15; + else + redirect_reason = PRI_REDIR_UNCONDITIONAL; + } else + redirect_reason = PRI_REDIR_UNCONDITIONAL; + pri_sr_set_redirecting(sr, ast->cid.cid_rdnis, p->pri->localdialplan - 1, PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, redirect_reason); + +#ifdef SUPPORT_USERUSER + /* User-user info */ + useruser = pbx_builtin_getvar_helper(p->owner, "USERUSERINFO"); + + if (useruser) + pri_sr_set_useruser(sr, useruser); +#endif + + if (pri_setup(p->pri->pri, p->call, sr)) { + ast_log(LOG_WARNING, "Unable to setup call to %s (using %s)\n", + c + p->stripmsd + dp_strip, dialplan2str(p->pri->dialplan)); + pri_rel(p->pri); + ast_mutex_unlock(&p->lock); + pri_sr_free(sr); + return -1; + } + pri_sr_free(sr); + ast_setstate(ast, AST_STATE_DIALING); + pri_rel(p->pri); + } +#endif + ast_mutex_unlock(&p->lock); + return 0; +} + +static void destroy_dahdi_pvt(struct dahdi_pvt **pvt) +{ + struct dahdi_pvt *p = *pvt; + /* Remove channel from the list */ + if (p->prev) + p->prev->next = p->next; + if (p->next) + p->next->prev = p->prev; + if (p->use_smdi) + ast_smdi_interface_unref(p->smdi_iface); + ast_mutex_destroy(&p->lock); + dahdi_close_sub(p, SUB_REAL); + if (p->owner) + p->owner->tech_pvt = NULL; + free(p); + *pvt = NULL; +} + +static int destroy_channel(struct dahdi_pvt *prev, struct dahdi_pvt *cur, int now) +{ + int owned = 0; + int i = 0; + + if (!now) { + if (cur->owner) { + owned = 1; + } + + for (i = 0; i < 3; i++) { + if (cur->subs[i].owner) { + owned = 1; + } + } + if (!owned) { + if (prev) { + prev->next = cur->next; + if (prev->next) + prev->next->prev = prev; + else + ifend = prev; + } else { + iflist = cur->next; + if (iflist) + iflist->prev = NULL; + else + ifend = NULL; + } + destroy_dahdi_pvt(&cur); + } + } else { + if (prev) { + prev->next = cur->next; + if (prev->next) + prev->next->prev = prev; + else + ifend = prev; + } else { + iflist = cur->next; + if (iflist) + iflist->prev = NULL; + else + ifend = NULL; + } + destroy_dahdi_pvt(&cur); + } + return 0; +} + +static void destroy_all_channels(void) +{ + int x; + struct dahdi_pvt *p, *pl; + + while (num_restart_pending) { + usleep(1); + } + + ast_mutex_lock(&iflock); + /* Destroy all the interfaces and free their memory */ + p = iflist; + while (p) { + /* Free any callerid */ + if (p->cidspill) + ast_free(p->cidspill); + pl = p; + p = p->next; + x = pl->channel; + /* Free associated memory */ + if (pl) + destroy_dahdi_pvt(&pl); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_2 "Unregistered channel %d\n", x); + } + iflist = NULL; + ifcount = 0; + ast_mutex_unlock(&iflock); +} + +#ifdef HAVE_PRI +static char *dahdi_send_keypad_facility_app = "DAHDISendKeypadFacility"; +static char *zap_send_keypad_facility_app = "ZapSendKeypadFacility"; + +static char *dahdi_send_keypad_facility_synopsis = "Send digits out of band over a PRI"; +static char *zap_send_keypad_facility_synopsis = "Send digits out of band over a PRI"; + +static char *dahdi_send_keypad_facility_descrip = +" DAHDISendKeypadFacility(): This application will send the given string of digits in a Keypad Facility\n" +" IE over the current channel.\n"; +static char *zap_send_keypad_facility_descrip = +" ZapSendKeypadFacility(): This application will send the given string of digits in a Keypad Facility\n" +" IE over the current channel.\n"; + +static int send_keypad_facility_exec(struct ast_channel *chan, void *data) +{ + /* Data will be our digit string */ + struct dahdi_pvt *p; + char *digits = (char *) data; + + if (ast_strlen_zero(digits)) { + ast_log(LOG_DEBUG, "No digit string sent to application!\n"); + return -1; + } + + p = (struct dahdi_pvt *)chan->tech_pvt; + + if (!p) { + ast_log(LOG_DEBUG, "Unable to find technology private\n"); + return -1; + } + + ast_mutex_lock(&p->lock); + + if (!p->pri || !p->call) { + ast_log(LOG_DEBUG, "Unable to find pri or call on channel!\n"); + ast_mutex_unlock(&p->lock); + return -1; + } + + if (!pri_grab(p, p->pri)) { + pri_keypad_facility(p->pri->pri, p->call, digits); + pri_rel(p->pri); + } else { + ast_log(LOG_DEBUG, "Unable to grab pri to send keypad facility!\n"); + ast_mutex_unlock(&p->lock); + return -1; + } + + ast_mutex_unlock(&p->lock); + + return 0; +} + +static int dahdi_send_keypad_facility_exec(struct ast_channel *chan, void *data) +{ + return send_keypad_facility_exec(chan, data); +} + +static int zap_send_keypad_facility_exec(struct ast_channel *chan, void *data) +{ + ast_log(LOG_WARNING, "Use of the command %s is deprecated, please use %s instead.\n", zap_send_keypad_facility_app, dahdi_send_keypad_facility_app); + return send_keypad_facility_exec(chan, data); +} + +static int pri_is_up(struct dahdi_pri *pri) +{ + int x; + for (x = 0; x < NUM_DCHANS; x++) { + if (pri->dchanavail[x] == DCHAN_AVAILABLE) + return 1; + } + return 0; +} + +static int pri_assign_bearer(struct dahdi_pvt *crv, struct dahdi_pri *pri, struct dahdi_pvt *bearer) +{ + bearer->owner = &inuse; + bearer->realcall = crv; + crv->subs[SUB_REAL].dfd = bearer->subs[SUB_REAL].dfd; + if (crv->subs[SUB_REAL].owner) + crv->subs[SUB_REAL].owner->fds[0] = crv->subs[SUB_REAL].dfd; + crv->bearer = bearer; + crv->call = bearer->call; + crv->pri = pri; + return 0; +} + +static char *pri_order(int level) +{ + switch (level) { + case 0: + return "Primary"; + case 1: + return "Secondary"; + case 2: + return "Tertiary"; + case 3: + return "Quaternary"; + default: + return "<Unknown>"; + } +} + +/* Returns fd of the active dchan */ +static int pri_active_dchan_fd(struct dahdi_pri *pri) +{ + int x = -1; + + for (x = 0; x < NUM_DCHANS; x++) { + if ((pri->dchans[x] == pri->pri)) + break; + } + + return pri->fds[x]; +} + +static int pri_find_dchan(struct dahdi_pri *pri) +{ + int oldslot = -1; + struct pri *old; + int newslot = -1; + int x; + old = pri->pri; + for (x = 0; x < NUM_DCHANS; x++) { + if ((pri->dchanavail[x] == DCHAN_AVAILABLE) && (newslot < 0)) + newslot = x; + if (pri->dchans[x] == old) { + oldslot = x; + } + } + if (newslot < 0) { + newslot = 0; + ast_log(LOG_WARNING, "No D-channels available! Using Primary channel %d as D-channel anyway!\n", + pri->dchannels[newslot]); + } + if (old && (oldslot != newslot)) + ast_log(LOG_NOTICE, "Switching from from d-channel %d to channel %d!\n", + pri->dchannels[oldslot], pri->dchannels[newslot]); + pri->pri = pri->dchans[newslot]; + return 0; +} +#endif + +static int dahdi_hangup(struct ast_channel *ast) +{ + int res; + int index,x, law; + /*static int restore_gains(struct dahdi_pvt *p);*/ + struct dahdi_pvt *p = ast->tech_pvt; + struct dahdi_pvt *tmp = NULL; + struct dahdi_pvt *prev = NULL; + struct dahdi_params par; + + if (option_debug) + ast_log(LOG_DEBUG, "dahdi_hangup(%s)\n", ast->name); + if (!ast->tech_pvt) { + ast_log(LOG_WARNING, "Asked to hangup channel not connected\n"); + return 0; + } + + ast_mutex_lock(&p->lock); + + index = dahdi_get_index(ast, p, 1); + + if (p->sig == SIG_PRI) { + x = 1; + ast_channel_setoption(ast,AST_OPTION_AUDIO_MODE,&x,sizeof(char),0); + } + + x = 0; + dahdi_confmute(p, 0); + restore_gains(p); + if (p->origcid_num) { + ast_copy_string(p->cid_num, p->origcid_num, sizeof(p->cid_num)); + free(p->origcid_num); + p->origcid_num = NULL; + } + if (p->origcid_name) { + ast_copy_string(p->cid_name, p->origcid_name, sizeof(p->cid_name)); + free(p->origcid_name); + p->origcid_name = NULL; + } + if (p->dsp) + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_DTMF | p->dtmfrelax); + if (p->exten) + p->exten[0] = '\0'; + + if (option_debug) + ast_log(LOG_DEBUG, "Hangup: channel: %d index = %d, normal = %d, callwait = %d, thirdcall = %d\n", + p->channel, index, p->subs[SUB_REAL].dfd, p->subs[SUB_CALLWAIT].dfd, p->subs[SUB_THREEWAY].dfd); + p->ignoredtmf = 0; + + if (index > -1) { + /* Real channel, do some fixup */ + p->subs[index].owner = NULL; + p->subs[index].needanswer = 0; + p->subs[index].needflash = 0; + p->subs[index].needringing = 0; + p->subs[index].needbusy = 0; + p->subs[index].needcongestion = 0; + p->subs[index].linear = 0; + p->subs[index].needcallerid = 0; + p->polarity = POLARITY_IDLE; + dahdi_setlinear(p->subs[index].dfd, 0); + if (index == SUB_REAL) { + if ((p->subs[SUB_CALLWAIT].dfd > -1) && (p->subs[SUB_THREEWAY].dfd > -1)) { + ast_log(LOG_DEBUG, "Normal call hung up with both three way call and a call waiting call in place?\n"); + if (p->subs[SUB_CALLWAIT].inthreeway) { + /* We had flipped over to answer a callwait and now it's gone */ + ast_log(LOG_DEBUG, "We were flipped over to the callwait, moving back and unowning.\n"); + /* Move to the call-wait, but un-own us until they flip back. */ + swap_subs(p, SUB_CALLWAIT, SUB_REAL); + unalloc_sub(p, SUB_CALLWAIT); + p->owner = NULL; + } else { + /* The three way hung up, but we still have a call wait */ + ast_log(LOG_DEBUG, "We were in the threeway and have a callwait still. Ditching the threeway.\n"); + swap_subs(p, SUB_THREEWAY, SUB_REAL); + unalloc_sub(p, SUB_THREEWAY); + if (p->subs[SUB_REAL].inthreeway) { + /* This was part of a three way call. Immediately make way for + another call */ + ast_log(LOG_DEBUG, "Call was complete, setting owner to former third call\n"); + p->owner = p->subs[SUB_REAL].owner; + } else { + /* This call hasn't been completed yet... Set owner to NULL */ + ast_log(LOG_DEBUG, "Call was incomplete, setting owner to NULL\n"); + p->owner = NULL; + } + p->subs[SUB_REAL].inthreeway = 0; + } + } else if (p->subs[SUB_CALLWAIT].dfd > -1) { + /* Move to the call-wait and switch back to them. */ + swap_subs(p, SUB_CALLWAIT, SUB_REAL); + unalloc_sub(p, SUB_CALLWAIT); + p->owner = p->subs[SUB_REAL].owner; + if (p->owner->_state != AST_STATE_UP) + p->subs[SUB_REAL].needanswer = 1; + if (ast_bridged_channel(p->subs[SUB_REAL].owner)) + ast_queue_control(p->subs[SUB_REAL].owner, AST_CONTROL_UNHOLD); + } else if (p->subs[SUB_THREEWAY].dfd > -1) { + swap_subs(p, SUB_THREEWAY, SUB_REAL); + unalloc_sub(p, SUB_THREEWAY); + if (p->subs[SUB_REAL].inthreeway) { + /* This was part of a three way call. Immediately make way for + another call */ + ast_log(LOG_DEBUG, "Call was complete, setting owner to former third call\n"); + p->owner = p->subs[SUB_REAL].owner; + } else { + /* This call hasn't been completed yet... Set owner to NULL */ + ast_log(LOG_DEBUG, "Call was incomplete, setting owner to NULL\n"); + p->owner = NULL; + } + p->subs[SUB_REAL].inthreeway = 0; + } + } else if (index == SUB_CALLWAIT) { + /* Ditch the holding callwait call, and immediately make it availabe */ + if (p->subs[SUB_CALLWAIT].inthreeway) { + /* This is actually part of a three way, placed on hold. Place the third part + on music on hold now */ + if (p->subs[SUB_THREEWAY].owner && ast_bridged_channel(p->subs[SUB_THREEWAY].owner)) { + ast_queue_control_data(p->subs[SUB_THREEWAY].owner, AST_CONTROL_HOLD, + S_OR(p->mohsuggest, NULL), + !ast_strlen_zero(p->mohsuggest) ? strlen(p->mohsuggest) + 1 : 0); + } + p->subs[SUB_THREEWAY].inthreeway = 0; + /* Make it the call wait now */ + swap_subs(p, SUB_CALLWAIT, SUB_THREEWAY); + unalloc_sub(p, SUB_THREEWAY); + } else + unalloc_sub(p, SUB_CALLWAIT); + } else if (index == SUB_THREEWAY) { + if (p->subs[SUB_CALLWAIT].inthreeway) { + /* The other party of the three way call is currently in a call-wait state. + Start music on hold for them, and take the main guy out of the third call */ + if (p->subs[SUB_CALLWAIT].owner && ast_bridged_channel(p->subs[SUB_CALLWAIT].owner)) { + ast_queue_control_data(p->subs[SUB_CALLWAIT].owner, AST_CONTROL_HOLD, + S_OR(p->mohsuggest, NULL), + !ast_strlen_zero(p->mohsuggest) ? strlen(p->mohsuggest) + 1 : 0); + } + p->subs[SUB_CALLWAIT].inthreeway = 0; + } + p->subs[SUB_REAL].inthreeway = 0; + /* If this was part of a three way call index, let us make + another three way call */ + unalloc_sub(p, SUB_THREEWAY); + } else { + /* This wasn't any sort of call, but how are we an index? */ + ast_log(LOG_WARNING, "Index found but not any type of call?\n"); + } + } + + if (!p->subs[SUB_REAL].owner && !p->subs[SUB_CALLWAIT].owner && !p->subs[SUB_THREEWAY].owner) { + p->owner = NULL; + p->ringt = 0; + p->distinctivering = 0; + p->confirmanswer = 0; + p->cidrings = 1; + p->outgoing = 0; + p->digital = 0; + p->faxhandled = 0; + p->pulsedial = 0; + p->onhooktime = time(NULL); +#ifdef HAVE_PRI + p->proceeding = 0; + p->progress = 0; + p->alerting = 0; + p->setup_ack = 0; +#endif + if (p->dsp) { + ast_dsp_free(p->dsp); + p->dsp = NULL; + } + + law = DAHDI_LAW_DEFAULT; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SETLAW, &law); + if (res < 0) + ast_log(LOG_WARNING, "Unable to set law on channel %d to default: %s\n", p->channel, strerror(errno)); + /* Perform low level hangup if no owner left */ +#ifdef HAVE_PRI + if (p->pri) { +#ifdef SUPPORT_USERUSER + const char *useruser = pbx_builtin_getvar_helper(ast,"USERUSERINFO"); +#endif + + /* Make sure we have a call (or REALLY have a call in the case of a PRI) */ + if (p->call && (!p->bearer || (p->bearer->call == p->call))) { + if (!pri_grab(p, p->pri)) { + if (p->alreadyhungup) { + ast_log(LOG_DEBUG, "Already hungup... Calling hangup once, and clearing call\n"); + +#ifdef SUPPORT_USERUSER + pri_call_set_useruser(p->call, useruser); +#endif + + pri_hangup(p->pri->pri, p->call, -1); + p->call = NULL; + if (p->bearer) + p->bearer->call = NULL; + } else { + const char *cause = pbx_builtin_getvar_helper(ast,"PRI_CAUSE"); + int icause = ast->hangupcause ? ast->hangupcause : -1; + ast_log(LOG_DEBUG, "Not yet hungup... Calling hangup once with icause, and clearing call\n"); + +#ifdef SUPPORT_USERUSER + pri_call_set_useruser(p->call, useruser); +#endif + + p->alreadyhungup = 1; + if (p->bearer) + p->bearer->alreadyhungup = 1; + if (cause) { + if (atoi(cause)) + icause = atoi(cause); + } + pri_hangup(p->pri->pri, p->call, icause); + } + if (res < 0) + ast_log(LOG_WARNING, "pri_disconnect failed\n"); + pri_rel(p->pri); + } else { + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + res = -1; + } + } else { + if (p->bearer) + ast_log(LOG_DEBUG, "Bearer call is %p, while ours is still %p\n", p->bearer->call, p->call); + p->call = NULL; + res = 0; + } + } +#endif + if (p->sig && (p->sig != SIG_PRI)) + res = dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_ONHOOK); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to hangup line %s\n", ast->name); + } + switch (p->sig) { + case SIG_FXOGS: + case SIG_FXOLS: + case SIG_FXOKS: + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &par); + if (!res) { +#if 0 + ast_log(LOG_DEBUG, "Hanging up channel %d, offhook = %d\n", p->channel, par.rxisoffhook); +#endif + /* If they're off hook, try playing congestion */ + if ((par.rxisoffhook) && (!(p->radio || (p->oprmode < 0)))) + tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + else + tone_zone_play_tone(p->subs[SUB_REAL].dfd, -1); + } + break; + case SIG_FXSGS: + case SIG_FXSLS: + case SIG_FXSKS: + /* Make sure we're not made available for at least two seconds assuming + we were actually used for an inbound or outbound call. */ + if (ast->_state != AST_STATE_RESERVED) { + time(&p->guardtime); + p->guardtime += 2; + } + break; + default: + tone_zone_play_tone(p->subs[SUB_REAL].dfd, -1); + } + if (p->cidspill) + free(p->cidspill); + if (p->sig) + dahdi_disable_ec(p); + x = 0; + ast_channel_setoption(ast,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0); + ast_channel_setoption(ast,AST_OPTION_TDD,&x,sizeof(char),0); + p->didtdd = 0; + p->cidspill = NULL; + p->callwaitcas = 0; + p->callwaiting = p->permcallwaiting; + p->hidecallerid = p->permhidecallerid; + p->dialing = 0; + p->rdnis[0] = '\0'; + update_conf(p); + reset_conf(p); + /* Restore data mode */ + if (p->sig == SIG_PRI) { + x = 0; + ast_channel_setoption(ast,AST_OPTION_AUDIO_MODE,&x,sizeof(char),0); + } +#ifdef HAVE_PRI + if (p->bearer) { + ast_log(LOG_DEBUG, "Freeing up bearer channel %d\n", p->bearer->channel); + /* Free up the bearer channel as well, and + don't use its file descriptor anymore */ + update_conf(p->bearer); + reset_conf(p->bearer); + p->bearer->owner = NULL; + p->bearer->realcall = NULL; + p->bearer = NULL; + p->subs[SUB_REAL].dfd = -1; + p->pri = NULL; + } +#endif + if (num_restart_pending == 0) + restart_monitor(); + } + + p->callwaitingrepeat = 0; + p->cidcwexpire = 0; + p->oprmode = 0; + ast->tech_pvt = NULL; + ast_mutex_unlock(&p->lock); + ast_module_unref(ast_module_info->self); + if (option_verbose > 2) + ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name); + + ast_mutex_lock(&iflock); + + if (p->restartpending) { + num_restart_pending--; + } + + tmp = iflist; + prev = NULL; + if (p->destroy) { + while (tmp) { + if (tmp == p) { + destroy_channel(prev, tmp, 0); + break; + } else { + prev = tmp; + tmp = tmp->next; + } + } + } + ast_mutex_unlock(&iflock); + return 0; +} + +static int dahdi_answer(struct ast_channel *ast) +{ + struct dahdi_pvt *p = ast->tech_pvt; + int res = 0; + int index; + int oldstate = ast->_state; + ast_setstate(ast, AST_STATE_UP); + ast_mutex_lock(&p->lock); + index = dahdi_get_index(ast, p, 0); + if (index < 0) + index = SUB_REAL; + /* nothing to do if a radio channel */ + if ((p->radio || (p->oprmode < 0))) { + ast_mutex_unlock(&p->lock); + return 0; + } + switch (p->sig) { + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + p->ringt = 0; + /* Fall through */ + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_SF: + case SIG_SFWINK: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + /* Pick up the line */ + ast_log(LOG_DEBUG, "Took %s off hook\n", ast->name); + if (p->hanguponpolarityswitch) { + gettimeofday(&p->polaritydelaytv, NULL); + } + res = dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + tone_zone_play_tone(p->subs[index].dfd, -1); + p->dialing = 0; + if ((index == SUB_REAL) && p->subs[SUB_THREEWAY].inthreeway) { + if (oldstate == AST_STATE_RINGING) { + ast_log(LOG_DEBUG, "Finally swapping real and threeway\n"); + tone_zone_play_tone(p->subs[SUB_THREEWAY].dfd, -1); + swap_subs(p, SUB_THREEWAY, SUB_REAL); + p->owner = p->subs[SUB_REAL].owner; + } + } + if (p->sig & __DAHDI_SIG_FXS) { + dahdi_enable_ec(p); + dahdi_train_ec(p); + } + break; +#ifdef HAVE_PRI + case SIG_PRI: + /* Send a pri acknowledge */ + if (!pri_grab(p, p->pri)) { + p->proceeding = 1; + res = pri_answer(p->pri->pri, p->call, 0, !p->digital); + pri_rel(p->pri); + } else { + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + res = -1; + } + break; +#endif + case 0: + ast_mutex_unlock(&p->lock); + return 0; + default: + ast_log(LOG_WARNING, "Don't know how to answer signalling %d (channel %d)\n", p->sig, p->channel); + res = -1; + } + ast_mutex_unlock(&p->lock); + return res; +} + +static int dahdi_setoption(struct ast_channel *chan, int option, void *data, int datalen) +{ + char *cp; + signed char *scp; + int x; + int index; + struct dahdi_pvt *p = chan->tech_pvt, *pp; + struct oprmode *oprmode; + + + /* all supported options require data */ + if (!data || (datalen < 1)) { + errno = EINVAL; + return -1; + } + + switch (option) { + case AST_OPTION_TXGAIN: + scp = (signed char *) data; + index = dahdi_get_index(chan, p, 0); + if (index < 0) { + ast_log(LOG_WARNING, "No index in TXGAIN?\n"); + return -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Setting actual tx gain on %s to %f\n", chan->name, p->txgain + (float) *scp); + return set_actual_txgain(p->subs[index].dfd, 0, p->txgain + (float) *scp, p->law); + case AST_OPTION_RXGAIN: + scp = (signed char *) data; + index = dahdi_get_index(chan, p, 0); + if (index < 0) { + ast_log(LOG_WARNING, "No index in RXGAIN?\n"); + return -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Setting actual rx gain on %s to %f\n", chan->name, p->rxgain + (float) *scp); + return set_actual_rxgain(p->subs[index].dfd, 0, p->rxgain + (float) *scp, p->law); + case AST_OPTION_TONE_VERIFY: + if (!p->dsp) + break; + cp = (char *) data; + switch (*cp) { + case 1: + ast_log(LOG_DEBUG, "Set option TONE VERIFY, mode: MUTECONF(1) on %s\n",chan->name); + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_MUTECONF | p->dtmfrelax); /* set mute mode if desired */ + break; + case 2: + ast_log(LOG_DEBUG, "Set option TONE VERIFY, mode: MUTECONF/MAX(2) on %s\n",chan->name); + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_MUTECONF | DSP_DIGITMODE_MUTEMAX | p->dtmfrelax); /* set mute mode if desired */ + break; + default: + ast_log(LOG_DEBUG, "Set option TONE VERIFY, mode: OFF(0) on %s\n",chan->name); + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_DTMF | p->dtmfrelax); /* set mute mode if desired */ + break; + } + break; + case AST_OPTION_TDD: + /* turn on or off TDD */ + cp = (char *) data; + p->mate = 0; + if (!*cp) { /* turn it off */ + if (option_debug) + ast_log(LOG_DEBUG, "Set option TDD MODE, value: OFF(0) on %s\n",chan->name); + if (p->tdd) + tdd_free(p->tdd); + p->tdd = 0; + break; + } + ast_log(LOG_DEBUG, "Set option TDD MODE, value: %s(%d) on %s\n", + (*cp == 2) ? "MATE" : "ON", (int) *cp, chan->name); + dahdi_disable_ec(p); + /* otherwise, turn it on */ + if (!p->didtdd) { /* if havent done it yet */ + unsigned char mybuf[41000], *buf; + int size, res, fd, len; + struct pollfd fds[1]; + + buf = mybuf; + memset(buf, 0x7f, sizeof(mybuf)); /* set to silence */ + ast_tdd_gen_ecdisa(buf + 16000, 16000); /* put in tone */ + len = 40000; + index = dahdi_get_index(chan, p, 0); + if (index < 0) { + ast_log(LOG_WARNING, "No index in TDD?\n"); + return -1; + } + fd = p->subs[index].dfd; + while (len) { + if (ast_check_hangup(chan)) + return -1; + size = len; + if (size > READ_SIZE) + size = READ_SIZE; + fds[0].fd = fd; + fds[0].events = POLLPRI | POLLOUT; + fds[0].revents = 0; + res = poll(fds, 1, -1); + if (!res) { + ast_log(LOG_DEBUG, "poll (for write) ret. 0 on channel %d\n", p->channel); + continue; + } + /* if got exception */ + if (fds[0].revents & POLLPRI) + return -1; + if (!(fds[0].revents & POLLOUT)) { + ast_log(LOG_DEBUG, "write fd not ready on channel %d\n", p->channel); + continue; + } + res = write(fd, buf, size); + if (res != size) { + if (res == -1) return -1; + ast_log(LOG_DEBUG, "Write returned %d (%s) on channel %d\n", res, strerror(errno), p->channel); + break; + } + len -= size; + buf += size; + } + p->didtdd = 1; /* set to have done it now */ + } + if (*cp == 2) { /* Mate mode */ + if (p->tdd) + tdd_free(p->tdd); + p->tdd = 0; + p->mate = 1; + break; + } + if (!p->tdd) { /* if we dont have one yet */ + p->tdd = tdd_new(); /* allocate one */ + } + break; + case AST_OPTION_RELAXDTMF: /* Relax DTMF decoding (or not) */ + if (!p->dsp) + break; + cp = (char *) data; + ast_log(LOG_DEBUG, "Set option RELAX DTMF, value: %s(%d) on %s\n", + *cp ? "ON" : "OFF", (int) *cp, chan->name); + p->dtmfrelax = 0; + if (*cp) p->dtmfrelax = DSP_DIGITMODE_RELAXDTMF; + ast_dsp_digitmode(p->dsp, DSP_DIGITMODE_DTMF | p->dtmfrelax); + break; + case AST_OPTION_AUDIO_MODE: /* Set AUDIO mode (or not) */ + cp = (char *) data; + if (!*cp) { + ast_log(LOG_DEBUG, "Set option AUDIO MODE, value: OFF(0) on %s\n", chan->name); + x = 0; + dahdi_disable_ec(p); + } else { + ast_log(LOG_DEBUG, "Set option AUDIO MODE, value: ON(1) on %s\n", chan->name); + x = 1; + } + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &x) == -1) + ast_log(LOG_WARNING, "Unable to set audio mode on channel %d to %d: %s\n", p->channel, x, strerror(errno)); + break; + case AST_OPTION_OPRMODE: /* Operator services mode */ + oprmode = (struct oprmode *) data; + pp = oprmode->peer->tech_pvt; + p->oprmode = pp->oprmode = 0; + /* setup peers */ + p->oprpeer = pp; + pp->oprpeer = p; + /* setup modes, if any */ + if (oprmode->mode) + { + pp->oprmode = oprmode->mode; + p->oprmode = -oprmode->mode; + } + ast_log(LOG_DEBUG, "Set Operator Services mode, value: %d on %s/%s\n", + oprmode->mode, chan->name,oprmode->peer->name);; + break; + case AST_OPTION_ECHOCAN: + cp = (char *) data; + if (*cp) { + ast_log(LOG_DEBUG, "Enabling echo cancelation on %s\n", chan->name); + dahdi_enable_ec(p); + } else { + ast_log(LOG_DEBUG, "Disabling echo cancelation on %s\n", chan->name); + dahdi_disable_ec(p); + } + break; + } + errno = 0; + + return 0; +} + +static int dahdi_func_read(struct ast_channel *chan, char *function, char *data, char *buf, size_t len) +{ + struct dahdi_pvt *p = chan->tech_pvt; + + if (!strcasecmp(data, "rxgain")) { + ast_mutex_lock(&p->lock); + snprintf(buf, len, "%f", p->rxgain); + ast_mutex_unlock(&p->lock); + } else if (!strcasecmp(data, "txgain")) { + ast_mutex_lock(&p->lock); + snprintf(buf, len, "%f", p->txgain); + ast_mutex_unlock(&p->lock); + } else { + ast_copy_string(buf, "", len); + } + return 0; +} + + +static void dahdi_unlink(struct dahdi_pvt *slave, struct dahdi_pvt *master, int needlock) +{ + /* Unlink a specific slave or all slaves/masters from a given master */ + int x; + int hasslaves; + if (!master) + return; + if (needlock) { + ast_mutex_lock(&master->lock); + if (slave) { + while (ast_mutex_trylock(&slave->lock)) { + DEADLOCK_AVOIDANCE(&master->lock); + } + } + } + hasslaves = 0; + for (x = 0; x < MAX_SLAVES; x++) { + if (master->slaves[x]) { + if (!slave || (master->slaves[x] == slave)) { + /* Take slave out of the conference */ + ast_log(LOG_DEBUG, "Unlinking slave %d from %d\n", master->slaves[x]->channel, master->channel); + conf_del(master, &master->slaves[x]->subs[SUB_REAL], SUB_REAL); + conf_del(master->slaves[x], &master->subs[SUB_REAL], SUB_REAL); + master->slaves[x]->master = NULL; + master->slaves[x] = NULL; + } else + hasslaves = 1; + } + if (!hasslaves) + master->inconference = 0; + } + if (!slave) { + if (master->master) { + /* Take master out of the conference */ + conf_del(master->master, &master->subs[SUB_REAL], SUB_REAL); + conf_del(master, &master->master->subs[SUB_REAL], SUB_REAL); + hasslaves = 0; + for (x = 0; x < MAX_SLAVES; x++) { + if (master->master->slaves[x] == master) + master->master->slaves[x] = NULL; + else if (master->master->slaves[x]) + hasslaves = 1; + } + if (!hasslaves) + master->master->inconference = 0; + } + master->master = NULL; + } + update_conf(master); + if (needlock) { + if (slave) + ast_mutex_unlock(&slave->lock); + ast_mutex_unlock(&master->lock); + } +} + +static void dahdi_link(struct dahdi_pvt *slave, struct dahdi_pvt *master) { + int x; + if (!slave || !master) { + ast_log(LOG_WARNING, "Tried to link to/from NULL??\n"); + return; + } + for (x = 0; x < MAX_SLAVES; x++) { + if (!master->slaves[x]) { + master->slaves[x] = slave; + break; + } + } + if (x >= MAX_SLAVES) { + ast_log(LOG_WARNING, "Replacing slave %d with new slave, %d\n", master->slaves[MAX_SLAVES - 1]->channel, slave->channel); + master->slaves[MAX_SLAVES - 1] = slave; + } + if (slave->master) + ast_log(LOG_WARNING, "Replacing master %d with new master, %d\n", slave->master->channel, master->channel); + slave->master = master; + + ast_log(LOG_DEBUG, "Making %d slave to master %d at %d\n", slave->channel, master->channel, x); +} + +static void disable_dtmf_detect(struct dahdi_pvt *p) +{ +#ifdef DAHDI_TONEDETECT + int val; +#endif + + p->ignoredtmf = 1; + +#ifdef DAHDI_TONEDETECT + val = 0; + ioctl(p->subs[SUB_REAL].dfd, DAHDI_TONEDETECT, &val); +#endif + if (!p->hardwaredtmf && p->dsp) { + p->dsp_features &= ~DSP_FEATURE_DTMF_DETECT; + ast_dsp_set_features(p->dsp, p->dsp_features); + } +} + +static void enable_dtmf_detect(struct dahdi_pvt *p) +{ +#ifdef DAHDI_TONEDETECT + int val; +#endif + + if (p->channel == CHAN_PSEUDO) + return; + + p->ignoredtmf = 0; + +#ifdef DAHDI_TONEDETECT + val = DAHDI_TONEDETECT_ON | DAHDI_TONEDETECT_MUTE; + ioctl(p->subs[SUB_REAL].dfd, DAHDI_TONEDETECT, &val); +#endif + if (!p->hardwaredtmf && p->dsp) { + p->dsp_features |= DSP_FEATURE_DTMF_DETECT; + ast_dsp_set_features(p->dsp, p->dsp_features); + } +} + +static enum ast_bridge_result dahdi_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms) +{ + struct ast_channel *who; + struct dahdi_pvt *p0, *p1, *op0, *op1; + struct dahdi_pvt *master = NULL, *slave = NULL; + struct ast_frame *f; + int inconf = 0; + int nothingok = 1; + int ofd0, ofd1; + int oi0, oi1, i0 = -1, i1 = -1, t0, t1; + int os0 = -1, os1 = -1; + int priority = 0; + struct ast_channel *oc0, *oc1; + enum ast_bridge_result res; + +#ifdef PRI_2BCT + int triedtopribridge = 0; + q931_call *q931c0 = NULL, *q931c1 = NULL; +#endif + + /* For now, don't attempt to native bridge if either channel needs DTMF detection. + There is code below to handle it properly until DTMF is actually seen, + but due to currently unresolved issues it's ignored... + */ + + if (flags & (AST_BRIDGE_DTMF_CHANNEL_0 | AST_BRIDGE_DTMF_CHANNEL_1)) + return AST_BRIDGE_FAILED_NOWARN; + + ast_mutex_lock(&c0->lock); + while (ast_mutex_trylock(&c1->lock)) { + DEADLOCK_AVOIDANCE(&c0->lock); + } + + p0 = c0->tech_pvt; + p1 = c1->tech_pvt; + /* cant do pseudo-channels here */ + if (!p0 || (!p0->sig) || !p1 || (!p1->sig)) { + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + return AST_BRIDGE_FAILED_NOWARN; + } + + oi0 = dahdi_get_index(c0, p0, 0); + oi1 = dahdi_get_index(c1, p1, 0); + if ((oi0 < 0) || (oi1 < 0)) { + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + return AST_BRIDGE_FAILED; + } + + op0 = p0 = c0->tech_pvt; + op1 = p1 = c1->tech_pvt; + ofd0 = c0->fds[0]; + ofd1 = c1->fds[0]; + oc0 = p0->owner; + oc1 = p1->owner; + + if (ast_mutex_trylock(&p0->lock)) { + /* Don't block, due to potential for deadlock */ + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + ast_log(LOG_NOTICE, "Avoiding deadlock...\n"); + return AST_BRIDGE_RETRY; + } + if (ast_mutex_trylock(&p1->lock)) { + /* Don't block, due to potential for deadlock */ + ast_mutex_unlock(&p0->lock); + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + ast_log(LOG_NOTICE, "Avoiding deadlock...\n"); + return AST_BRIDGE_RETRY; + } + + if ((oi0 == SUB_REAL) && (oi1 == SUB_REAL)) { + if (p0->owner && p1->owner) { + /* If we don't have a call-wait in a 3-way, and we aren't in a 3-way, we can be master */ + if (!p0->subs[SUB_CALLWAIT].inthreeway && !p1->subs[SUB_REAL].inthreeway) { + master = p0; + slave = p1; + inconf = 1; + } else if (!p1->subs[SUB_CALLWAIT].inthreeway && !p0->subs[SUB_REAL].inthreeway) { + master = p1; + slave = p0; + inconf = 1; + } else { + ast_log(LOG_WARNING, "Huh? Both calls are callwaits or 3-ways? That's clever...?\n"); + ast_log(LOG_WARNING, "p0: chan %d/%d/CW%d/3W%d, p1: chan %d/%d/CW%d/3W%d\n", + p0->channel, + oi0, (p0->subs[SUB_CALLWAIT].dfd > -1) ? 1 : 0, + p0->subs[SUB_REAL].inthreeway, p0->channel, + oi0, (p1->subs[SUB_CALLWAIT].dfd > -1) ? 1 : 0, + p1->subs[SUB_REAL].inthreeway); + } + nothingok = 0; + } + } else if ((oi0 == SUB_REAL) && (oi1 == SUB_THREEWAY)) { + if (p1->subs[SUB_THREEWAY].inthreeway) { + master = p1; + slave = p0; + nothingok = 0; + } + } else if ((oi0 == SUB_THREEWAY) && (oi1 == SUB_REAL)) { + if (p0->subs[SUB_THREEWAY].inthreeway) { + master = p0; + slave = p1; + nothingok = 0; + } + } else if ((oi0 == SUB_REAL) && (oi1 == SUB_CALLWAIT)) { + /* We have a real and a call wait. If we're in a three way call, put us in it, otherwise, + don't put us in anything */ + if (p1->subs[SUB_CALLWAIT].inthreeway) { + master = p1; + slave = p0; + nothingok = 0; + } + } else if ((oi0 == SUB_CALLWAIT) && (oi1 == SUB_REAL)) { + /* Same as previous */ + if (p0->subs[SUB_CALLWAIT].inthreeway) { + master = p0; + slave = p1; + nothingok = 0; + } + } + ast_log(LOG_DEBUG, "master: %d, slave: %d, nothingok: %d\n", + master ? master->channel : 0, slave ? slave->channel : 0, nothingok); + if (master && slave) { + /* Stop any tones, or play ringtone as appropriate. If they're bridged + in an active threeway call with a channel that is ringing, we should + indicate ringing. */ + if ((oi1 == SUB_THREEWAY) && + p1->subs[SUB_THREEWAY].inthreeway && + p1->subs[SUB_REAL].owner && + p1->subs[SUB_REAL].inthreeway && + (p1->subs[SUB_REAL].owner->_state == AST_STATE_RINGING)) { + ast_log(LOG_DEBUG, "Playing ringback on %s since %s is in a ringing three-way\n", c0->name, c1->name); + tone_zone_play_tone(p0->subs[oi0].dfd, DAHDI_TONE_RINGTONE); + os1 = p1->subs[SUB_REAL].owner->_state; + } else { + ast_log(LOG_DEBUG, "Stopping tones on %d/%d talking to %d/%d\n", p0->channel, oi0, p1->channel, oi1); + tone_zone_play_tone(p0->subs[oi0].dfd, -1); + } + if ((oi0 == SUB_THREEWAY) && + p0->subs[SUB_THREEWAY].inthreeway && + p0->subs[SUB_REAL].owner && + p0->subs[SUB_REAL].inthreeway && + (p0->subs[SUB_REAL].owner->_state == AST_STATE_RINGING)) { + ast_log(LOG_DEBUG, "Playing ringback on %s since %s is in a ringing three-way\n", c1->name, c0->name); + tone_zone_play_tone(p1->subs[oi1].dfd, DAHDI_TONE_RINGTONE); + os0 = p0->subs[SUB_REAL].owner->_state; + } else { + ast_log(LOG_DEBUG, "Stopping tones on %d/%d talking to %d/%d\n", p1->channel, oi1, p0->channel, oi0); + tone_zone_play_tone(p1->subs[oi0].dfd, -1); + } + if ((oi0 == SUB_REAL) && (oi1 == SUB_REAL)) { + if (!p0->echocanbridged || !p1->echocanbridged) { + /* Disable echo cancellation if appropriate */ + dahdi_disable_ec(p0); + dahdi_disable_ec(p1); + } + } + dahdi_link(slave, master); + master->inconference = inconf; + } else if (!nothingok) + ast_log(LOG_WARNING, "Can't link %d/%s with %d/%s\n", p0->channel, subnames[oi0], p1->channel, subnames[oi1]); + + update_conf(p0); + update_conf(p1); + t0 = p0->subs[SUB_REAL].inthreeway; + t1 = p1->subs[SUB_REAL].inthreeway; + + ast_mutex_unlock(&p0->lock); + ast_mutex_unlock(&p1->lock); + + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + + /* Native bridge failed */ + if ((!master || !slave) && !nothingok) { + dahdi_enable_ec(p0); + dahdi_enable_ec(p1); + return AST_BRIDGE_FAILED; + } + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Native bridging %s and %s\n", c0->name, c1->name); + + if (!(flags & AST_BRIDGE_DTMF_CHANNEL_0) && (oi0 == SUB_REAL)) + disable_dtmf_detect(op0); + + if (!(flags & AST_BRIDGE_DTMF_CHANNEL_1) && (oi1 == SUB_REAL)) + disable_dtmf_detect(op1); + + for (;;) { + struct ast_channel *c0_priority[2] = {c0, c1}; + struct ast_channel *c1_priority[2] = {c1, c0}; + + /* Here's our main loop... Start by locking things, looking for private parts, + and then balking if anything is wrong */ + ast_mutex_lock(&c0->lock); + while (ast_mutex_trylock(&c1->lock)) { + DEADLOCK_AVOIDANCE(&c0->lock); + } + + p0 = c0->tech_pvt; + p1 = c1->tech_pvt; + + if (op0 == p0) + i0 = dahdi_get_index(c0, p0, 1); + if (op1 == p1) + i1 = dahdi_get_index(c1, p1, 1); + ast_mutex_unlock(&c0->lock); + ast_mutex_unlock(&c1->lock); + + if (!timeoutms || + (op0 != p0) || + (op1 != p1) || + (ofd0 != c0->fds[0]) || + (ofd1 != c1->fds[0]) || + (p0->subs[SUB_REAL].owner && (os0 > -1) && (os0 != p0->subs[SUB_REAL].owner->_state)) || + (p1->subs[SUB_REAL].owner && (os1 > -1) && (os1 != p1->subs[SUB_REAL].owner->_state)) || + (oc0 != p0->owner) || + (oc1 != p1->owner) || + (t0 != p0->subs[SUB_REAL].inthreeway) || + (t1 != p1->subs[SUB_REAL].inthreeway) || + (oi0 != i0) || + (oi1 != i1)) { + ast_log(LOG_DEBUG, "Something changed out on %d/%d to %d/%d, returning -3 to restart\n", + op0->channel, oi0, op1->channel, oi1); + res = AST_BRIDGE_RETRY; + goto return_from_bridge; + } + +#ifdef PRI_2BCT + q931c0 = p0->call; + q931c1 = p1->call; + if (p0->transfer && p1->transfer + && q931c0 && q931c1 + && !triedtopribridge) { + pri_channel_bridge(q931c0, q931c1); + triedtopribridge = 1; + } +#endif + + who = ast_waitfor_n(priority ? c0_priority : c1_priority, 2, &timeoutms); + if (!who) { + ast_log(LOG_DEBUG, "Ooh, empty read...\n"); + continue; + } + f = ast_read(who); + if (!f || (f->frametype == AST_FRAME_CONTROL)) { + *fo = f; + *rc = who; + res = AST_BRIDGE_COMPLETE; + goto return_from_bridge; + } + if (f->frametype == AST_FRAME_DTMF) { + if ((who == c0) && p0->pulsedial) { + ast_write(c1, f); + } else if ((who == c1) && p1->pulsedial) { + ast_write(c0, f); + } else { + *fo = f; + *rc = who; + res = AST_BRIDGE_COMPLETE; + goto return_from_bridge; + } + } + ast_frfree(f); + + /* Swap who gets priority */ + priority = !priority; + } + +return_from_bridge: + if (op0 == p0) + dahdi_enable_ec(p0); + + if (op1 == p1) + dahdi_enable_ec(p1); + + if (!(flags & AST_BRIDGE_DTMF_CHANNEL_0) && (oi0 == SUB_REAL)) + enable_dtmf_detect(op0); + + if (!(flags & AST_BRIDGE_DTMF_CHANNEL_1) && (oi1 == SUB_REAL)) + enable_dtmf_detect(op1); + + dahdi_unlink(slave, master, 1); + + return res; +} + +static int dahdi_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) +{ + struct dahdi_pvt *p = newchan->tech_pvt; + int x; + ast_mutex_lock(&p->lock); + ast_log(LOG_DEBUG, "New owner for channel %d is %s\n", p->channel, newchan->name); + if (p->owner == oldchan) { + p->owner = newchan; + } + for (x = 0; x < 3; x++) + if (p->subs[x].owner == oldchan) { + if (!x) + dahdi_unlink(NULL, p, 0); + p->subs[x].owner = newchan; + } + if (newchan->_state == AST_STATE_RINGING) + dahdi_indicate(newchan, AST_CONTROL_RINGING, NULL, 0); + update_conf(p); + ast_mutex_unlock(&p->lock); + return 0; +} + +static int dahdi_ring_phone(struct dahdi_pvt *p) +{ + int x; + int res; + /* Make sure our transmit state is on hook */ + x = 0; + x = DAHDI_ONHOOK; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + do { + x = DAHDI_RING; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + if (res) { + switch (errno) { + case EBUSY: + case EINTR: + /* Wait just in case */ + usleep(10000); + continue; + case EINPROGRESS: + res = 0; + break; + default: + ast_log(LOG_WARNING, "Couldn't ring the phone: %s\n", strerror(errno)); + res = 0; + } + } + } while (res); + return res; +} + +static void *ss_thread(void *data); + +static struct ast_channel *dahdi_new(struct dahdi_pvt *, int, int, int, int, int); + +static int attempt_transfer(struct dahdi_pvt *p) +{ + /* In order to transfer, we need at least one of the channels to + actually be in a call bridge. We can't conference two applications + together (but then, why would we want to?) */ + if (ast_bridged_channel(p->subs[SUB_REAL].owner)) { + /* The three-way person we're about to transfer to could still be in MOH, so + stop if now if appropriate */ + if (ast_bridged_channel(p->subs[SUB_THREEWAY].owner)) + ast_queue_control(p->subs[SUB_THREEWAY].owner, AST_CONTROL_UNHOLD); + if (p->subs[SUB_REAL].owner->_state == AST_STATE_RINGING) { + ast_indicate(ast_bridged_channel(p->subs[SUB_REAL].owner), AST_CONTROL_RINGING); + } + if (p->subs[SUB_THREEWAY].owner->_state == AST_STATE_RING) { + tone_zone_play_tone(p->subs[SUB_THREEWAY].dfd, DAHDI_TONE_RINGTONE); + } + if (ast_channel_masquerade(p->subs[SUB_THREEWAY].owner, ast_bridged_channel(p->subs[SUB_REAL].owner))) { + ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", + ast_bridged_channel(p->subs[SUB_REAL].owner)->name, p->subs[SUB_THREEWAY].owner->name); + return -1; + } + /* Orphan the channel after releasing the lock */ + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + unalloc_sub(p, SUB_THREEWAY); + } else if (ast_bridged_channel(p->subs[SUB_THREEWAY].owner)) { + ast_queue_control(p->subs[SUB_REAL].owner, AST_CONTROL_UNHOLD); + if (p->subs[SUB_THREEWAY].owner->_state == AST_STATE_RINGING) { + ast_indicate(ast_bridged_channel(p->subs[SUB_THREEWAY].owner), AST_CONTROL_RINGING); + } + if (p->subs[SUB_REAL].owner->_state == AST_STATE_RING) { + tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_RINGTONE); + } + if (ast_channel_masquerade(p->subs[SUB_REAL].owner, ast_bridged_channel(p->subs[SUB_THREEWAY].owner))) { + ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", + ast_bridged_channel(p->subs[SUB_THREEWAY].owner)->name, p->subs[SUB_REAL].owner->name); + return -1; + } + /* Three-way is now the REAL */ + swap_subs(p, SUB_THREEWAY, SUB_REAL); + ast_mutex_unlock(&p->subs[SUB_REAL].owner->lock); + unalloc_sub(p, SUB_THREEWAY); + /* Tell the caller not to hangup */ + return 1; + } else { + ast_log(LOG_DEBUG, "Neither %s nor %s are in a bridge, nothing to transfer\n", + p->subs[SUB_REAL].owner->name, p->subs[SUB_THREEWAY].owner->name); + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + return -1; + } + return 0; +} + +static int check_for_conference(struct dahdi_pvt *p) +{ + struct dahdi_confinfo ci; + /* Fine if we already have a master, etc */ + if (p->master || (p->confno > -1)) + return 0; + memset(&ci, 0, sizeof(ci)); + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_GETCONF, &ci)) { + ast_log(LOG_WARNING, "Failed to get conference info on channel %d: %s\n", p->channel, strerror(errno)); + return 0; + } + /* If we have no master and don't have a confno, then + if we're in a conference, it's probably a MeetMe room or + some such, so don't let us 3-way out! */ + if ((p->subs[SUB_REAL].curconf.confno != ci.confno) || (p->subs[SUB_REAL].curconf.confmode != ci.confmode)) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Avoiding 3-way call when in an external conference\n"); + return 1; + } + return 0; +} + +static int get_alarms(struct dahdi_pvt *p) +{ + int res; + struct dahdi_spaninfo zi; +#if !defined(HAVE_ZAPTEL) || defined(HAVE_ZAPTEL_CHANALARMS) + /* + * The conditional compilation is needed only in asterisk-1.4 for + * backward compatibility with old zaptel drivers that don't have + * a DAHDI_PARAMS.chan_alarms field. + */ + struct dahdi_params params; +#endif + + memset(&zi, 0, sizeof(zi)); + zi.spanno = p->span; + + /* First check for span alarms */ + if((res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SPANSTAT, &zi)) < 0) { + ast_log(LOG_WARNING, "Unable to determine alarm on channel %d: %s\n", p->channel, strerror(errno)); + return 0; + } + if (zi.alarms != DAHDI_ALARM_NONE) + return zi.alarms; +#if !defined(HAVE_ZAPTEL) || defined(HAVE_ZAPTEL_CHANALARMS) + /* No alarms on the span. Check for channel alarms. */ + if ((res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, ¶ms)) >= 0) + return params.chan_alarms; + /* ioctl failed */ + ast_log(LOG_WARNING, "Unable to determine alarm on channel %d\n", p->channel); +#endif + return DAHDI_ALARM_NONE; +} + +static void dahdi_handle_dtmfup(struct ast_channel *ast, int index, struct ast_frame **dest) +{ + struct dahdi_pvt *p = ast->tech_pvt; + struct ast_frame *f = *dest; + + if (option_debug) + ast_log(LOG_DEBUG, "DTMF digit: %c on %s\n", f->subclass, ast->name); + + if (p->confirmanswer) { + if (option_debug) + ast_log(LOG_DEBUG, "Confirm answer on %s!\n", ast->name); + /* Upon receiving a DTMF digit, consider this an answer confirmation instead + of a DTMF digit */ + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + *dest = &p->subs[index].f; + /* Reset confirmanswer so DTMF's will behave properly for the duration of the call */ + p->confirmanswer = 0; + } else if (p->callwaitcas) { + if ((f->subclass == 'A') || (f->subclass == 'D')) { + if (option_debug) + ast_log(LOG_DEBUG, "Got some DTMF, but it's for the CAS\n"); + if (p->cidspill) + free(p->cidspill); + send_cwcidspill(p); + } + if ((f->subclass != 'm') && (f->subclass != 'u')) + p->callwaitcas = 0; + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + *dest = &p->subs[index].f; + } else if (f->subclass == 'f') { + /* Fax tone -- Handle and return NULL */ + if ((p->callprogress & 0x6) && !p->faxhandled) { + p->faxhandled++; + if (strcmp(ast->exten, "fax")) { + const char *target_context = S_OR(ast->macrocontext, ast->context); + + /* We need to unlock 'ast' here because ast_exists_extension has the + * potential to start autoservice on the channel. Such action is prone + * to deadlock. + */ + ast_mutex_unlock(&p->lock); + ast_channel_unlock(ast); + if (ast_exists_extension(ast, target_context, "fax", 1, ast->cid.cid_num)) { + ast_channel_lock(ast); + ast_mutex_lock(&p->lock); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Redirecting %s to fax extension\n", ast->name); + /* Save the DID/DNIS when we transfer the fax call to a "fax" extension */ + pbx_builtin_setvar_helper(ast, "FAXEXTEN", ast->exten); + if (ast_async_goto(ast, target_context, "fax", 1)) + ast_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", ast->name, target_context); + } else { + ast_channel_lock(ast); + ast_mutex_lock(&p->lock); + ast_log(LOG_NOTICE, "Fax detected, but no fax extension\n"); + } + } else if (option_debug) + ast_log(LOG_DEBUG, "Already in a fax extension, not redirecting\n"); + } else if (option_debug) + ast_log(LOG_DEBUG, "Fax already handled\n"); + dahdi_confmute(p, 0); + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + *dest = &p->subs[index].f; + } else if (f->subclass == 'm') { + /* Confmute request */ + dahdi_confmute(p, 1); + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + *dest = &p->subs[index].f; + } else if (f->subclass == 'u') { + /* Unmute */ + dahdi_confmute(p, 0); + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + *dest = &p->subs[index].f; + } else + dahdi_confmute(p, 0); +} + +static void handle_alarms(struct dahdi_pvt *p, int alarms) +{ + const char *alarm_str = alarm2str(alarms); + + /* hack alert! Zaptel 1.4 and DAHDI expose FXO battery as an alarm, but this code + * doesn't know what to do with it. Don't confuse users with log messages. */ + if (!strcasecmp(alarm_str, "No Alarm") || !strcasecmp(alarm_str, "Unknown Alarm")) { + p->unknown_alarm = 1; + return; + } else { + p->unknown_alarm = 0; + } + + ast_log(LOG_WARNING, "Detected alarm on channel %d: %s\n", p->channel, alarm_str); + manager_event(EVENT_FLAG_SYSTEM, "Alarm", + "Alarm: %s\r\n" + "Channel: %d\r\n", + alarm_str, p->channel); +} + +static struct ast_frame *dahdi_handle_event(struct ast_channel *ast) +{ + int res, x; + int index, mysig; + char *c; + struct dahdi_pvt *p = ast->tech_pvt; + pthread_t threadid; + pthread_attr_t attr; + struct ast_channel *chan; + struct ast_frame *f; + + index = dahdi_get_index(ast, p, 0); + mysig = p->sig; + if (p->outsigmod > -1) + mysig = p->outsigmod; + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + p->subs[index].f.datalen = 0; + p->subs[index].f.samples = 0; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = 0; + p->subs[index].f.src = "dahdi_handle_event"; + p->subs[index].f.data = NULL; + f = &p->subs[index].f; + + if (index < 0) + return &p->subs[index].f; + if (p->fake_event) { + res = p->fake_event; + p->fake_event = 0; + } else + res = dahdi_get_event(p->subs[index].dfd); + + if (option_debug) + ast_log(LOG_DEBUG, "Got event %s(%d) on channel %d (index %d)\n", event2str(res), res, p->channel, index); + + if (res & (DAHDI_EVENT_PULSEDIGIT | DAHDI_EVENT_DTMFUP)) { + p->pulsedial = (res & DAHDI_EVENT_PULSEDIGIT) ? 1 : 0; + + ast_log(LOG_DEBUG, "Detected %sdigit '%c'\n", p->pulsedial ? "pulse ": "", res & 0xff); +#ifdef HAVE_PRI + if (!p->proceeding && p->sig == SIG_PRI && p->pri && p->pri->overlapdial) { + /* absorb event */ + } else { +#endif + p->subs[index].f.frametype = AST_FRAME_DTMF_END; + p->subs[index].f.subclass = res & 0xff; +#ifdef HAVE_PRI + } +#endif + dahdi_handle_dtmfup(ast, index, &f); + return f; + } + + if (res & DAHDI_EVENT_DTMFDOWN) { + if (option_debug) + ast_log(LOG_DEBUG, "DTMF Down '%c'\n", res & 0xff); + /* Mute conference */ + dahdi_confmute(p, 1); + p->subs[index].f.frametype = AST_FRAME_DTMF_BEGIN; + p->subs[index].f.subclass = res & 0xff; + return &p->subs[index].f; + } + + switch (res) { +#ifdef DAHDI_EVENT_EC_DISABLED + case DAHDI_EVENT_EC_DISABLED: + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d echo canceler disabled due to CED detection\n", p->channel); + p->echocanon = 0; + break; +#endif + case DAHDI_EVENT_BITSCHANGED: + ast_log(LOG_WARNING, "Recieved bits changed on %s signalling?\n", sig2str(p->sig)); + case DAHDI_EVENT_PULSE_START: + /* Stop tone if there's a pulse start and the PBX isn't started */ + if (!ast->pbx) + tone_zone_play_tone(p->subs[index].dfd, -1); + break; + case DAHDI_EVENT_DIALCOMPLETE: + if (p->inalarm) break; + if ((p->radio || (p->oprmode < 0))) break; + if (ioctl(p->subs[index].dfd,DAHDI_DIALING,&x) == -1) { + ast_log(LOG_DEBUG, "DAHDI_DIALING ioctl failed on %s: %s\n",ast->name, strerror(errno)); + return NULL; + } + if (!x) { /* if not still dialing in driver */ + dahdi_enable_ec(p); + if (p->echobreak) { + dahdi_train_ec(p); + ast_copy_string(p->dop.dialstr, p->echorest, sizeof(p->dop.dialstr)); + p->dop.op = DAHDI_DIAL_OP_REPLACE; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop); + p->echobreak = 0; + } else { + p->dialing = 0; + if ((mysig == SIG_E911) || (mysig == SIG_FGC_CAMA) || (mysig == SIG_FGC_CAMAMF)) { + /* if thru with dialing after offhook */ + if (ast->_state == AST_STATE_DIALING_OFFHOOK) { + ast_setstate(ast, AST_STATE_UP); + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + break; + } else { /* if to state wait for offhook to dial rest */ + /* we now wait for off hook */ + ast_setstate(ast,AST_STATE_DIALING_OFFHOOK); + } + } + if (ast->_state == AST_STATE_DIALING) { + if ((p->callprogress & 1) && CANPROGRESSDETECT(p) && p->dsp && p->outgoing) { + ast_log(LOG_DEBUG, "Done dialing, but waiting for progress detection before doing more...\n"); + } else if (p->confirmanswer || (!p->dialednone && ((mysig == SIG_EM) || (mysig == SIG_EM_E1) || (mysig == SIG_EMWINK) || (mysig == SIG_FEATD) || (mysig == SIG_FEATDMF_TA) || (mysig == SIG_FEATDMF) || (mysig == SIG_E911) || (mysig == SIG_FGC_CAMA) || (mysig == SIG_FGC_CAMAMF) || (mysig == SIG_FEATB) || (mysig == SIG_SF) || (mysig == SIG_SFWINK) || (mysig == SIG_SF_FEATD) || (mysig == SIG_SF_FEATDMF) || (mysig == SIG_SF_FEATB)))) { + ast_setstate(ast, AST_STATE_RINGING); + } else if (!p->answeronpolarityswitch) { + ast_setstate(ast, AST_STATE_UP); + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + /* If aops=0 and hops=1, this is necessary */ + p->polarity = POLARITY_REV; + } else { + /* Start clean, so we can catch the change to REV polarity when party answers */ + p->polarity = POLARITY_IDLE; + } + } + } + } + break; + case DAHDI_EVENT_ALARM: +#ifdef HAVE_PRI + if (!p->pri || !p->pri->pri || (pri_get_timer(p->pri->pri, PRI_TIMER_T309) < 0)) { + /* T309 is not enabled : hangup calls when alarm occurs */ + if (p->call) { + if (p->pri && p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_hangup(p->pri->pri, p->call, -1); + pri_destroycall(p->pri->pri, p->call); + p->call = NULL; + pri_rel(p->pri); + } else + ast_log(LOG_WARNING, "Failed to grab PRI!\n"); + } else + ast_log(LOG_WARNING, "The PRI Call has not been destroyed\n"); + } + if (p->owner) + p->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + if (p->bearer) + p->bearer->inalarm = 1; + else +#endif + p->inalarm = 1; + res = get_alarms(p); + handle_alarms(p, res); +#ifdef HAVE_LIBPRI + if (!p->pri || !p->pri->pri || pri_get_timer(p->pri->pri, PRI_TIMER_T309) < 0) { + /* fall through intentionally */ + } else { + break; + } +#endif + case DAHDI_EVENT_ONHOOK: + if (p->radio) { + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_RADIO_UNKEY; + break; + } + if (p->oprmode < 0) + { + if (p->oprmode != -1) break; + if ((p->sig == SIG_FXOLS) || (p->sig == SIG_FXOKS) || (p->sig == SIG_FXOGS)) + { + /* Make sure it starts ringing */ + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_RINGOFF); + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_RING); + save_conference(p->oprpeer); + tone_zone_play_tone(p->oprpeer->subs[SUB_REAL].dfd, DAHDI_TONE_RINGTONE); + } + break; + } + switch (p->sig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + p->onhooktime = time(NULL); + p->msgstate = -1; + /* Check for some special conditions regarding call waiting */ + if (index == SUB_REAL) { + /* The normal line was hung up */ + if (p->subs[SUB_CALLWAIT].owner) { + /* There's a call waiting call, so ring the phone, but make it unowned in the mean time */ + swap_subs(p, SUB_CALLWAIT, SUB_REAL); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d still has (callwait) call, ringing phone\n", p->channel); + unalloc_sub(p, SUB_CALLWAIT); +#if 0 + p->subs[index].needanswer = 0; + p->subs[index].needringing = 0; +#endif + p->callwaitingrepeat = 0; + p->cidcwexpire = 0; + p->owner = NULL; + /* Don't start streaming audio yet if the incoming call isn't up yet */ + if (p->subs[SUB_REAL].owner->_state != AST_STATE_UP) + p->dialing = 1; + dahdi_ring_phone(p); + } else if (p->subs[SUB_THREEWAY].owner) { + unsigned int mssinceflash; + /* Here we have to retain the lock on both the main channel, the 3-way channel, and + the private structure -- not especially easy or clean */ + while (p->subs[SUB_THREEWAY].owner && ast_mutex_trylock(&p->subs[SUB_THREEWAY].owner->lock)) { + /* Yuck, didn't get the lock on the 3-way, gotta release everything and re-grab! */ + ast_mutex_unlock(&p->lock); + DEADLOCK_AVOIDANCE(&ast->lock); + /* We can grab ast and p in that order, without worry. We should make sure + nothing seriously bad has happened though like some sort of bizarre double + masquerade! */ + ast_mutex_lock(&p->lock); + if (p->owner != ast) { + ast_log(LOG_WARNING, "This isn't good...\n"); + return NULL; + } + } + if (!p->subs[SUB_THREEWAY].owner) { + ast_log(LOG_NOTICE, "Whoa, threeway disappeared kinda randomly.\n"); + return NULL; + } + mssinceflash = ast_tvdiff_ms(ast_tvnow(), p->flashtime); + ast_log(LOG_DEBUG, "Last flash was %d ms ago\n", mssinceflash); + if (mssinceflash < MIN_MS_SINCE_FLASH) { + /* It hasn't been long enough since the last flashook. This is probably a bounce on + hanging up. Hangup both channels now */ + if (p->subs[SUB_THREEWAY].owner) + ast_queue_hangup(p->subs[SUB_THREEWAY].owner); + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + ast_log(LOG_DEBUG, "Looks like a bounced flash, hanging up both calls on %d\n", p->channel); + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + } else if ((ast->pbx) || (ast->_state == AST_STATE_UP)) { + if (p->transfer) { + /* In any case this isn't a threeway call anymore */ + p->subs[SUB_REAL].inthreeway = 0; + p->subs[SUB_THREEWAY].inthreeway = 0; + /* Only attempt transfer if the phone is ringing; why transfer to busy tone eh? */ + if (!p->transfertobusy && ast->_state == AST_STATE_BUSY) { + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + /* Swap subs and dis-own channel */ + swap_subs(p, SUB_THREEWAY, SUB_REAL); + p->owner = NULL; + /* Ring the phone */ + dahdi_ring_phone(p); + } else { + if ((res = attempt_transfer(p)) < 0) { + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + if (p->subs[SUB_THREEWAY].owner) + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + } else if (res) { + /* Don't actually hang up at this point */ + if (p->subs[SUB_THREEWAY].owner) + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + break; + } + } + } else { + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + if (p->subs[SUB_THREEWAY].owner) + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + } + } else { + ast_mutex_unlock(&p->subs[SUB_THREEWAY].owner->lock); + /* Swap subs and dis-own channel */ + swap_subs(p, SUB_THREEWAY, SUB_REAL); + p->owner = NULL; + /* Ring the phone */ + dahdi_ring_phone(p); + } + } + } else { + ast_log(LOG_WARNING, "Got a hangup and my index is %d?\n", index); + } + /* Fall through */ + default: + dahdi_disable_ec(p); + return NULL; + } + break; + case DAHDI_EVENT_RINGOFFHOOK: + if (p->inalarm) break; + if (p->oprmode < 0) + { + if ((p->sig == SIG_FXOLS) || (p->sig == SIG_FXOKS) || (p->sig == SIG_FXOGS)) + { + /* Make sure it stops ringing */ + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_RINGOFF); + tone_zone_play_tone(p->oprpeer->subs[SUB_REAL].dfd, -1); + restore_conference(p->oprpeer); + } + break; + } + if (p->radio) + { + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_RADIO_KEY; + break; + } + /* for E911, its supposed to wait for offhook then dial + the second half of the dial string */ + if (((mysig == SIG_E911) || (mysig == SIG_FGC_CAMA) || (mysig == SIG_FGC_CAMAMF)) && (ast->_state == AST_STATE_DIALING_OFFHOOK)) { + c = strchr(p->dialdest, '/'); + if (c) + c++; + else + c = p->dialdest; + if (*c) snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*0%s#", c); + else ast_copy_string(p->dop.dialstr,"M*2#", sizeof(p->dop.dialstr)); + if (strlen(p->dop.dialstr) > 4) { + memset(p->echorest, 'w', sizeof(p->echorest) - 1); + strcpy(p->echorest + (p->echotraining / 401) + 1, p->dop.dialstr + strlen(p->dop.dialstr) - 2); + p->echorest[sizeof(p->echorest) - 1] = '\0'; + p->echobreak = 1; + p->dop.dialstr[strlen(p->dop.dialstr)-2] = '\0'; + } else + p->echobreak = 0; + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop)) { + int saveerr = errno; + + x = DAHDI_ONHOOK; + ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + ast_log(LOG_WARNING, "Dialing failed on channel %d: %s\n", p->channel, strerror(saveerr)); + return NULL; + } + p->dialing = 1; + return &p->subs[index].f; + } + switch (p->sig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + switch (ast->_state) { + case AST_STATE_RINGING: + dahdi_enable_ec(p); + dahdi_train_ec(p); + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + /* Make sure it stops ringing */ + dahdi_set_hook(p->subs[index].dfd, DAHDI_OFFHOOK); + ast_log(LOG_DEBUG, "channel %d answered\n", p->channel); + if (p->cidspill) { + /* Cancel any running CallerID spill */ + free(p->cidspill); + p->cidspill = NULL; + } + p->dialing = 0; + p->callwaitcas = 0; + if (p->confirmanswer) { + /* Ignore answer if "confirm answer" is enabled */ + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + } else if (!ast_strlen_zero(p->dop.dialstr)) { + /* nick@dccinc.com 4/3/03 - fxo should be able to do deferred dialing */ + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to initiate dialing on trunk channel %d: %s\n", p->channel, strerror(errno)); + p->dop.dialstr[0] = '\0'; + return NULL; + } else { + ast_log(LOG_DEBUG, "Sent FXO deferred digit string: %s\n", p->dop.dialstr); + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + p->dialing = 1; + } + p->dop.dialstr[0] = '\0'; + ast_setstate(ast, AST_STATE_DIALING); + } else + ast_setstate(ast, AST_STATE_UP); + return &p->subs[index].f; + case AST_STATE_DOWN: + ast_setstate(ast, AST_STATE_RING); + ast->rings = 1; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_OFFHOOK; + ast_log(LOG_DEBUG, "channel %d picked up\n", p->channel); + return &p->subs[index].f; + case AST_STATE_UP: + /* Make sure it stops ringing */ + dahdi_set_hook(p->subs[index].dfd, DAHDI_OFFHOOK); + /* Okay -- probably call waiting*/ + if (ast_bridged_channel(p->owner)) + ast_queue_control(p->owner, AST_CONTROL_UNHOLD); + p->subs[index].needunhold = 1; + break; + case AST_STATE_RESERVED: + /* Start up dialtone */ + if (has_voicemail(p)) + res = tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_STUTTER); + else + res = tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_DIALTONE); + break; + default: + ast_log(LOG_WARNING, "FXO phone off hook in weird state %d??\n", ast->_state); + } + break; + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + if (ast->_state == AST_STATE_RING) { + p->ringt = p->ringt_base; + } + + /* Fall through */ + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_SF: + case SIG_SFWINK: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + if (ast->_state == AST_STATE_PRERING) + ast_setstate(ast, AST_STATE_RING); + if ((ast->_state == AST_STATE_DOWN) || (ast->_state == AST_STATE_RING)) { + if (option_debug) + ast_log(LOG_DEBUG, "Ring detected\n"); + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_RING; + } else if (p->outgoing && ((ast->_state == AST_STATE_RINGING) || (ast->_state == AST_STATE_DIALING))) { + if (option_debug) + ast_log(LOG_DEBUG, "Line answered\n"); + if (p->confirmanswer) { + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + } else { + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + ast_setstate(ast, AST_STATE_UP); + } + } else if (ast->_state != AST_STATE_RING) + ast_log(LOG_WARNING, "Ring/Off-hook in strange state %d on channel %d\n", ast->_state, p->channel); + break; + default: + ast_log(LOG_WARNING, "Don't know how to handle ring/off hook for signalling %d\n", p->sig); + } + break; +#ifdef DAHDI_EVENT_RINGBEGIN + case DAHDI_EVENT_RINGBEGIN: + switch (p->sig) { + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + if (ast->_state == AST_STATE_RING) { + p->ringt = p->ringt_base; + } + break; + } + break; +#endif + case DAHDI_EVENT_RINGEROFF: + if (p->inalarm) break; + if ((p->radio || (p->oprmode < 0))) break; + ast->rings++; + if ((ast->rings > p->cidrings) && (p->cidspill)) { + ast_log(LOG_WARNING, "Didn't finish Caller-ID spill. Cancelling.\n"); + free(p->cidspill); + p->cidspill = NULL; + p->callwaitcas = 0; + } + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_RINGING; + break; + case DAHDI_EVENT_RINGERON: + break; + case DAHDI_EVENT_NOALARM: + p->inalarm = 0; +#ifdef HAVE_PRI + /* Extremely unlikely but just in case */ + if (p->bearer) + p->bearer->inalarm = 0; +#endif + if (!p->unknown_alarm) { + ast_log(LOG_NOTICE, "Alarm cleared on channel %d\n", p->channel); + manager_event(EVENT_FLAG_SYSTEM, "AlarmClear", + "Channel: %d\r\n", p->channel); + } else { + p->unknown_alarm = 0; + } + break; + case DAHDI_EVENT_WINKFLASH: + if (p->inalarm) break; + if (p->radio) break; + if (p->oprmode < 0) break; + if (p->oprmode > 1) + { + struct dahdi_params par; + + if (ioctl(p->oprpeer->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &par) != -1) + { + if (!par.rxisoffhook) + { + /* Make sure it stops ringing */ + dahdi_set_hook(p->oprpeer->subs[SUB_REAL].dfd, DAHDI_RINGOFF); + dahdi_set_hook(p->oprpeer->subs[SUB_REAL].dfd, DAHDI_RING); + save_conference(p); + tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_RINGTONE); + } + } + break; + } + /* Remember last time we got a flash-hook */ + gettimeofday(&p->flashtime, NULL); + switch (mysig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + ast_log(LOG_DEBUG, "Winkflash, index: %d, normal: %d, callwait: %d, thirdcall: %d\n", + index, p->subs[SUB_REAL].dfd, p->subs[SUB_CALLWAIT].dfd, p->subs[SUB_THREEWAY].dfd); + p->callwaitcas = 0; + + if (index != SUB_REAL) { + ast_log(LOG_WARNING, "Got flash hook with index %d on channel %d?!?\n", index, p->channel); + goto winkflashdone; + } + + if (p->subs[SUB_CALLWAIT].owner) { + /* Swap to call-wait */ + swap_subs(p, SUB_REAL, SUB_CALLWAIT); + tone_zone_play_tone(p->subs[SUB_REAL].dfd, -1); + p->owner = p->subs[SUB_REAL].owner; + ast_log(LOG_DEBUG, "Making %s the new owner\n", p->owner->name); + if (p->owner->_state == AST_STATE_RINGING) { + ast_setstate(p->owner, AST_STATE_UP); + p->subs[SUB_REAL].needanswer = 1; + } + p->callwaitingrepeat = 0; + p->cidcwexpire = 0; + /* Start music on hold if appropriate */ + if (!p->subs[SUB_CALLWAIT].inthreeway && ast_bridged_channel(p->subs[SUB_CALLWAIT].owner)) { + ast_queue_control_data(p->subs[SUB_CALLWAIT].owner, AST_CONTROL_HOLD, + S_OR(p->mohsuggest, NULL), + !ast_strlen_zero(p->mohsuggest) ? strlen(p->mohsuggest) + 1 : 0); + } + p->subs[SUB_CALLWAIT].needhold = 1; + if (ast_bridged_channel(p->subs[SUB_REAL].owner)) { + ast_queue_control_data(p->subs[SUB_REAL].owner, AST_CONTROL_HOLD, + S_OR(p->mohsuggest, NULL), + !ast_strlen_zero(p->mohsuggest) ? strlen(p->mohsuggest) + 1 : 0); + } + p->subs[SUB_REAL].needunhold = 1; + } else if (!p->subs[SUB_THREEWAY].owner) { + char cid_num[256]; + char cid_name[256]; + + if (!p->threewaycalling) { + /* Just send a flash if no 3-way calling */ + p->subs[SUB_REAL].needflash = 1; + goto winkflashdone; + } else if (!check_for_conference(p)) { + if (p->dahditrcallerid && p->owner) { + if (p->owner->cid.cid_num) + ast_copy_string(cid_num, p->owner->cid.cid_num, sizeof(cid_num)); + if (p->owner->cid.cid_name) + ast_copy_string(cid_name, p->owner->cid.cid_name, sizeof(cid_name)); + } + /* XXX This section needs much more error checking!!! XXX */ + /* Start a 3-way call if feasible */ + if (!((ast->pbx) || + (ast->_state == AST_STATE_UP) || + (ast->_state == AST_STATE_RING))) { + ast_log(LOG_DEBUG, "Flash when call not up or ringing\n"); + goto winkflashdone; + } + if (alloc_sub(p, SUB_THREEWAY)) { + ast_log(LOG_WARNING, "Unable to allocate three-way subchannel\n"); + goto winkflashdone; + } + /* Make new channel */ + chan = dahdi_new(p, AST_STATE_RESERVED, 0, SUB_THREEWAY, 0, 0); + if (p->dahditrcallerid) { + if (!p->origcid_num) + p->origcid_num = ast_strdup(p->cid_num); + if (!p->origcid_name) + p->origcid_name = ast_strdup(p->cid_name); + ast_copy_string(p->cid_num, cid_num, sizeof(p->cid_num)); + ast_copy_string(p->cid_name, cid_name, sizeof(p->cid_name)); + } + /* Swap things around between the three-way and real call */ + swap_subs(p, SUB_THREEWAY, SUB_REAL); + /* Disable echo canceller for better dialing */ + dahdi_disable_ec(p); + res = tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_DIALRECALL); + if (res) + ast_log(LOG_WARNING, "Unable to start dial recall tone on channel %d\n", p->channel); + p->owner = chan; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + if (!chan) { + ast_log(LOG_WARNING, "Cannot allocate new structure on channel %d\n", p->channel); + } else if (ast_pthread_create(&threadid, &attr, ss_thread, chan)) { + ast_log(LOG_WARNING, "Unable to start simple switch on channel %d\n", p->channel); + res = tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + dahdi_enable_ec(p); + ast_hangup(chan); + } else { + struct ast_channel *other = ast_bridged_channel(p->subs[SUB_THREEWAY].owner); + int way3bridge = 0, cdr3way = 0; + + if (!other) { + other = ast_bridged_channel(p->subs[SUB_REAL].owner); + } else + way3bridge = 1; + + if (p->subs[SUB_THREEWAY].owner->cdr) + cdr3way = 1; + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Started three way call on channel %d\n", p->channel); + /* Start music on hold if appropriate */ + if (ast_bridged_channel(p->subs[SUB_THREEWAY].owner)) { + ast_queue_control_data(p->subs[SUB_THREEWAY].owner, AST_CONTROL_HOLD, + S_OR(p->mohsuggest, NULL), + !ast_strlen_zero(p->mohsuggest) ? strlen(p->mohsuggest) + 1 : 0); + } + p->subs[SUB_THREEWAY].needhold = 1; + } + pthread_attr_destroy(&attr); + } + } else { + /* Already have a 3 way call */ + if (p->subs[SUB_THREEWAY].inthreeway) { + /* Call is already up, drop the last person */ + if (option_debug) + ast_log(LOG_DEBUG, "Got flash with three way call up, dropping last call on %d\n", p->channel); + /* If the primary call isn't answered yet, use it */ + if ((p->subs[SUB_REAL].owner->_state != AST_STATE_UP) && (p->subs[SUB_THREEWAY].owner->_state == AST_STATE_UP)) { + /* Swap back -- we're dropping the real 3-way that isn't finished yet*/ + swap_subs(p, SUB_THREEWAY, SUB_REAL); + p->owner = p->subs[SUB_REAL].owner; + } + /* Drop the last call and stop the conference */ + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Dropping three-way call on %s\n", p->subs[SUB_THREEWAY].owner->name); + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + p->subs[SUB_REAL].inthreeway = 0; + p->subs[SUB_THREEWAY].inthreeway = 0; + } else { + /* Lets see what we're up to */ + if (((ast->pbx) || (ast->_state == AST_STATE_UP)) && + (p->transfertobusy || (ast->_state != AST_STATE_BUSY))) { + int otherindex = SUB_THREEWAY; + struct ast_channel *other = ast_bridged_channel(p->subs[SUB_THREEWAY].owner); + int way3bridge = 0, cdr3way = 0; + + if (!other) { + other = ast_bridged_channel(p->subs[SUB_REAL].owner); + } else + way3bridge = 1; + + if (p->subs[SUB_THREEWAY].owner->cdr) + cdr3way = 1; + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Building conference on call on %s and %s\n", p->subs[SUB_THREEWAY].owner->name, p->subs[SUB_REAL].owner->name); + /* Put them in the threeway, and flip */ + p->subs[SUB_THREEWAY].inthreeway = 1; + p->subs[SUB_REAL].inthreeway = 1; + if (ast->_state == AST_STATE_UP) { + swap_subs(p, SUB_THREEWAY, SUB_REAL); + otherindex = SUB_REAL; + } + if (p->subs[otherindex].owner && ast_bridged_channel(p->subs[otherindex].owner)) + ast_queue_control(p->subs[otherindex].owner, AST_CONTROL_UNHOLD); + p->subs[otherindex].needunhold = 1; + p->owner = p->subs[SUB_REAL].owner; + if (ast->_state == AST_STATE_RINGING) { + ast_log(LOG_DEBUG, "Enabling ringtone on real and threeway\n"); + res = tone_zone_play_tone(p->subs[SUB_REAL].dfd, DAHDI_TONE_RINGTONE); + res = tone_zone_play_tone(p->subs[SUB_THREEWAY].dfd, DAHDI_TONE_RINGTONE); + } + } else { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Dumping incomplete call on on %s\n", p->subs[SUB_THREEWAY].owner->name); + swap_subs(p, SUB_THREEWAY, SUB_REAL); + p->subs[SUB_THREEWAY].owner->_softhangup |= AST_SOFTHANGUP_DEV; + p->owner = p->subs[SUB_REAL].owner; + if (p->subs[SUB_REAL].owner && ast_bridged_channel(p->subs[SUB_REAL].owner)) + ast_queue_control(p->subs[SUB_REAL].owner, AST_CONTROL_UNHOLD); + p->subs[SUB_REAL].needunhold = 1; + dahdi_enable_ec(p); + } + + } + } + winkflashdone: + update_conf(p); + break; + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_FEATD: + case SIG_SF: + case SIG_SFWINK: + case SIG_SF_FEATD: + case SIG_FXSLS: + case SIG_FXSGS: + if (p->dialing) + ast_log(LOG_DEBUG, "Ignoring wink on channel %d\n", p->channel); + else + ast_log(LOG_DEBUG, "Got wink in weird state %d on channel %d\n", ast->_state, p->channel); + break; + case SIG_FEATDMF_TA: + switch (p->whichwink) { + case 0: + ast_log(LOG_DEBUG, "ANI2 set to '%d' and ANI is '%s'\n", p->owner->cid.cid_ani2, p->owner->cid.cid_ani); + snprintf(p->dop.dialstr, sizeof(p->dop.dialstr), "M*%d%s#", p->owner->cid.cid_ani2, p->owner->cid.cid_ani); + break; + case 1: + ast_copy_string(p->dop.dialstr, p->finaldial, sizeof(p->dop.dialstr)); + break; + case 2: + ast_log(LOG_WARNING, "Received unexpected wink on channel of type SIG_FEATDMF_TA\n"); + return NULL; + } + p->whichwink++; + /* Fall through */ + case SIG_FEATDMF: + case SIG_E911: + case SIG_FGC_CAMAMF: + case SIG_FGC_CAMA: + case SIG_FEATB: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + /* FGD MF *Must* wait for wink */ + if (!ast_strlen_zero(p->dop.dialstr)) { + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to initiate dialing on trunk channel %d: %s\n", p->channel, strerror(errno)); + p->dop.dialstr[0] = '\0'; + return NULL; + } else + ast_log(LOG_DEBUG, "Sent deferred digit string: %s\n", p->dop.dialstr); + } + p->dop.dialstr[0] = '\0'; + break; + default: + ast_log(LOG_WARNING, "Don't know how to handle ring/off hoook for signalling %d\n", p->sig); + } + break; + case DAHDI_EVENT_HOOKCOMPLETE: + if (p->inalarm) break; + if ((p->radio || (p->oprmode < 0))) break; + switch (mysig) { + case SIG_FXSLS: /* only interesting for FXS */ + case SIG_FXSGS: + case SIG_FXSKS: + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_FEATD: + case SIG_SF: + case SIG_SFWINK: + case SIG_SF_FEATD: + if (!ast_strlen_zero(p->dop.dialstr)) { + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_DIAL, &p->dop); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to initiate dialing on trunk channel %d: %s\n", p->channel, strerror(errno)); + p->dop.dialstr[0] = '\0'; + return NULL; + } else + ast_log(LOG_DEBUG, "Sent deferred digit string: %s\n", p->dop.dialstr); + } + p->dop.dialstr[0] = '\0'; + p->dop.op = DAHDI_DIAL_OP_REPLACE; + break; + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + ast_log(LOG_DEBUG, "Got hook complete in MF FGD, waiting for wink now on channel %d\n",p->channel); + break; + default: + break; + } + break; + case DAHDI_EVENT_POLARITY: + /* + * If we get a Polarity Switch event, check to see + * if we should change the polarity state and + * mark the channel as UP or if this is an indication + * of remote end disconnect. + */ + if (p->polarity == POLARITY_IDLE) { + p->polarity = POLARITY_REV; + if (p->answeronpolarityswitch && + ((ast->_state == AST_STATE_DIALING) || + (ast->_state == AST_STATE_RINGING))) { + ast_log(LOG_DEBUG, "Answering on polarity switch!\n"); + ast_setstate(p->owner, AST_STATE_UP); + if (p->hanguponpolarityswitch) { + gettimeofday(&p->polaritydelaytv, NULL); + } + } else + ast_log(LOG_DEBUG, "Ignore switch to REVERSED Polarity on channel %d, state %d\n", p->channel, ast->_state); + } + /* Removed else statement from here as it was preventing hangups from ever happening*/ + /* Added AST_STATE_RING in if statement below to deal with calling party hangups that take place when ringing */ + if (p->hanguponpolarityswitch && + (p->polarityonanswerdelay > 0) && + (p->polarity == POLARITY_REV) && + ((ast->_state == AST_STATE_UP) || (ast->_state == AST_STATE_RING)) ) { + /* Added log_debug information below to provide a better indication of what is going on */ + ast_log(LOG_DEBUG, "Polarity Reversal event occured - DEBUG 1: channel %d, state %d, pol= %d, aonp= %d, honp= %d, pdelay= %d, tv= %d\n", p->channel, ast->_state, p->polarity, p->answeronpolarityswitch, p->hanguponpolarityswitch, p->polarityonanswerdelay, ast_tvdiff_ms(ast_tvnow(), p->polaritydelaytv) ); + + if (ast_tvdiff_ms(ast_tvnow(), p->polaritydelaytv) > p->polarityonanswerdelay) { + ast_log(LOG_DEBUG, "Polarity Reversal detected and now Hanging up on channel %d\n", p->channel); + ast_softhangup(p->owner, AST_SOFTHANGUP_EXPLICIT); + p->polarity = POLARITY_IDLE; + } else { + ast_log(LOG_DEBUG, "Polarity Reversal detected but NOT hanging up (too close to answer event) on channel %d, state %d\n", p->channel, ast->_state); + } + } else { + p->polarity = POLARITY_IDLE; + ast_log(LOG_DEBUG, "Ignoring Polarity switch to IDLE on channel %d, state %d\n", p->channel, ast->_state); + } + /* Added more log_debug information below to provide a better indication of what is going on */ + ast_log(LOG_DEBUG, "Polarity Reversal event occured - DEBUG 2: channel %d, state %d, pol= %d, aonp= %d, honp= %d, pdelay= %d, tv= %d\n", p->channel, ast->_state, p->polarity, p->answeronpolarityswitch, p->hanguponpolarityswitch, p->polarityonanswerdelay, ast_tvdiff_ms(ast_tvnow(), p->polaritydelaytv) ); + break; + default: + ast_log(LOG_DEBUG, "Dunno what to do with event %d on channel %d\n", res, p->channel); + } + return &p->subs[index].f; +} + +static struct ast_frame *__dahdi_exception(struct ast_channel *ast) +{ + struct dahdi_pvt *p = ast->tech_pvt; + int res; + int usedindex=-1; + int index; + struct ast_frame *f; + + + index = dahdi_get_index(ast, p, 1); + + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.datalen = 0; + p->subs[index].f.samples = 0; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = 0; + p->subs[index].f.subclass = 0; + p->subs[index].f.delivery = ast_tv(0,0); + p->subs[index].f.src = "dahdi_exception"; + p->subs[index].f.data = NULL; + + + if ((!p->owner) && (!(p->radio || (p->oprmode < 0)))) { + /* If nobody owns us, absorb the event appropriately, otherwise + we loop indefinitely. This occurs when, during call waiting, the + other end hangs up our channel so that it no longer exists, but we + have neither FLASH'd nor ONHOOK'd to signify our desire to + change to the other channel. */ + if (p->fake_event) { + res = p->fake_event; + p->fake_event = 0; + } else + res = dahdi_get_event(p->subs[SUB_REAL].dfd); + /* Switch to real if there is one and this isn't something really silly... */ + if ((res != DAHDI_EVENT_RINGEROFF) && (res != DAHDI_EVENT_RINGERON) && + (res != DAHDI_EVENT_HOOKCOMPLETE)) { + ast_log(LOG_DEBUG, "Restoring owner of channel %d on event %d\n", p->channel, res); + p->owner = p->subs[SUB_REAL].owner; + if (p->owner && ast_bridged_channel(p->owner)) + ast_queue_control(p->owner, AST_CONTROL_UNHOLD); + p->subs[SUB_REAL].needunhold = 1; + } + switch (res) { + case DAHDI_EVENT_ONHOOK: + dahdi_disable_ec(p); + if (p->owner) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %s still has call, ringing phone\n", p->owner->name); + dahdi_ring_phone(p); + p->callwaitingrepeat = 0; + p->cidcwexpire = 0; + } else + ast_log(LOG_WARNING, "Absorbed on hook, but nobody is left!?!?\n"); + update_conf(p); + break; + case DAHDI_EVENT_RINGOFFHOOK: + dahdi_enable_ec(p); + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + if (p->owner && (p->owner->_state == AST_STATE_RINGING)) { + p->subs[SUB_REAL].needanswer = 1; + p->dialing = 0; + } + break; + case DAHDI_EVENT_HOOKCOMPLETE: + case DAHDI_EVENT_RINGERON: + case DAHDI_EVENT_RINGEROFF: + /* Do nothing */ + break; + case DAHDI_EVENT_WINKFLASH: + gettimeofday(&p->flashtime, NULL); + if (p->owner) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d flashed to other channel %s\n", p->channel, p->owner->name); + if (p->owner->_state != AST_STATE_UP) { + /* Answer if necessary */ + usedindex = dahdi_get_index(p->owner, p, 0); + if (usedindex > -1) { + p->subs[usedindex].needanswer = 1; + } + ast_setstate(p->owner, AST_STATE_UP); + } + p->callwaitingrepeat = 0; + p->cidcwexpire = 0; + if (ast_bridged_channel(p->owner)) + ast_queue_control(p->owner, AST_CONTROL_UNHOLD); + p->subs[SUB_REAL].needunhold = 1; + } else + ast_log(LOG_WARNING, "Absorbed on hook, but nobody is left!?!?\n"); + update_conf(p); + break; + default: + ast_log(LOG_WARNING, "Don't know how to absorb event %s\n", event2str(res)); + } + f = &p->subs[index].f; + return f; + } + if (!(p->radio || (p->oprmode < 0)) && option_debug) + ast_log(LOG_DEBUG, "Exception on %d, channel %d\n", ast->fds[0],p->channel); + /* If it's not us, return NULL immediately */ + if (ast != p->owner) { + ast_log(LOG_WARNING, "We're %s, not %s\n", ast->name, p->owner->name); + f = &p->subs[index].f; + return f; + } + f = dahdi_handle_event(ast); + return f; +} + +static struct ast_frame *dahdi_exception(struct ast_channel *ast) +{ + struct dahdi_pvt *p = ast->tech_pvt; + struct ast_frame *f; + ast_mutex_lock(&p->lock); + f = __dahdi_exception(ast); + ast_mutex_unlock(&p->lock); + return f; +} + +static struct ast_frame *dahdi_read(struct ast_channel *ast) +{ + struct dahdi_pvt *p = ast->tech_pvt; + int res; + int index; + void *readbuf; + struct ast_frame *f; + + while (ast_mutex_trylock(&p->lock)) { + DEADLOCK_AVOIDANCE(&ast->lock); + } + + index = dahdi_get_index(ast, p, 0); + + /* Hang up if we don't really exist */ + if (index < 0) { + ast_log(LOG_WARNING, "We dont exist?\n"); + ast_mutex_unlock(&p->lock); + return NULL; + } + + if ((p->radio || (p->oprmode < 0)) && p->inalarm) return NULL; + + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.datalen = 0; + p->subs[index].f.samples = 0; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = 0; + p->subs[index].f.subclass = 0; + p->subs[index].f.delivery = ast_tv(0,0); + p->subs[index].f.src = "dahdi_read"; + p->subs[index].f.data = NULL; + + /* make sure it sends initial key state as first frame */ + if ((p->radio || (p->oprmode < 0)) && (!p->firstradio)) + { + struct dahdi_params ps; + + ps.channo = p->channel; + if (ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &ps) < 0) { + ast_mutex_unlock(&p->lock); + return NULL; + } + p->firstradio = 1; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + if (ps.rxisoffhook) + { + p->subs[index].f.subclass = AST_CONTROL_RADIO_KEY; + } + else + { + p->subs[index].f.subclass = AST_CONTROL_RADIO_UNKEY; + } + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + if (p->ringt == 1) { + ast_mutex_unlock(&p->lock); + return NULL; + } + else if (p->ringt > 0) + p->ringt--; + + if (p->subs[index].needringing) { + /* Send ringing frame if requested */ + p->subs[index].needringing = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_RINGING; + ast_setstate(ast, AST_STATE_RINGING); + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + + if (p->subs[index].needbusy) { + /* Send busy frame if requested */ + p->subs[index].needbusy = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_BUSY; + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + + if (p->subs[index].needcongestion) { + /* Send congestion frame if requested */ + p->subs[index].needcongestion = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_CONGESTION; + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + + if (p->subs[index].needcallerid) { + ast_set_callerid(ast, S_OR(p->lastcid_num, NULL), + S_OR(p->lastcid_name, NULL), + S_OR(p->lastcid_num, NULL) + ); + p->subs[index].needcallerid = 0; + } + + if (p->subs[index].needanswer) { + /* Send answer frame if requested */ + p->subs[index].needanswer = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_ANSWER; + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + + if (p->subs[index].needflash) { + /* Send answer frame if requested */ + p->subs[index].needflash = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_FLASH; + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + + if (p->subs[index].needhold) { + /* Send answer frame if requested */ + p->subs[index].needhold = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_HOLD; + ast_mutex_unlock(&p->lock); + ast_log(LOG_DEBUG, "Sending hold on '%s'\n", ast->name); + return &p->subs[index].f; + } + + if (p->subs[index].needunhold) { + /* Send answer frame if requested */ + p->subs[index].needunhold = 0; + p->subs[index].f.frametype = AST_FRAME_CONTROL; + p->subs[index].f.subclass = AST_CONTROL_UNHOLD; + ast_mutex_unlock(&p->lock); + ast_log(LOG_DEBUG, "Sending unhold on '%s'\n", ast->name); + return &p->subs[index].f; + } + + if (ast->rawreadformat == AST_FORMAT_SLINEAR) { + if (!p->subs[index].linear) { + p->subs[index].linear = 1; + res = dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); + if (res) + ast_log(LOG_WARNING, "Unable to set channel %d (index %d) to linear mode.\n", p->channel, index); + } + } else if ((ast->rawreadformat == AST_FORMAT_ULAW) || + (ast->rawreadformat == AST_FORMAT_ALAW)) { + if (p->subs[index].linear) { + p->subs[index].linear = 0; + res = dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); + if (res) + ast_log(LOG_WARNING, "Unable to set channel %d (index %d) to companded mode.\n", p->channel, index); + } + } else { + ast_log(LOG_WARNING, "Don't know how to read frames in format %s\n", ast_getformatname(ast->rawreadformat)); + ast_mutex_unlock(&p->lock); + return NULL; + } + readbuf = ((unsigned char *)p->subs[index].buffer) + AST_FRIENDLY_OFFSET; + CHECK_BLOCKING(ast); + res = read(p->subs[index].dfd, readbuf, p->subs[index].linear ? READ_SIZE * 2 : READ_SIZE); + ast_clear_flag(ast, AST_FLAG_BLOCKING); + /* Check for hangup */ + if (res < 0) { + f = NULL; + if (res == -1) { + if (errno == EAGAIN) { + /* Return "NULL" frame if there is nobody there */ + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } else if (errno == ELAST) { + f = __dahdi_exception(ast); + } else + ast_log(LOG_WARNING, "dahdi_rec: %s\n", strerror(errno)); + } + ast_mutex_unlock(&p->lock); + return f; + } + if (res != (p->subs[index].linear ? READ_SIZE * 2 : READ_SIZE)) { + ast_log(LOG_DEBUG, "Short read (%d/%d), must be an event...\n", res, p->subs[index].linear ? READ_SIZE * 2 : READ_SIZE); + f = __dahdi_exception(ast); + ast_mutex_unlock(&p->lock); + return f; + } + if (p->tdd) { /* if in TDD mode, see if we receive that */ + int c; + + c = tdd_feed(p->tdd,readbuf,READ_SIZE); + if (c < 0) { + ast_log(LOG_DEBUG,"tdd_feed failed\n"); + ast_mutex_unlock(&p->lock); + return NULL; + } + if (c) { /* if a char to return */ + p->subs[index].f.subclass = 0; + p->subs[index].f.frametype = AST_FRAME_TEXT; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = AST_FRIENDLY_OFFSET; + p->subs[index].f.data = p->subs[index].buffer + AST_FRIENDLY_OFFSET; + p->subs[index].f.datalen = 1; + *((char *) p->subs[index].f.data) = c; + ast_mutex_unlock(&p->lock); + return &p->subs[index].f; + } + } + /* Ensure the CW timer decrements only on a single subchannel */ + if (p->callwaitingrepeat && dahdi_get_index(ast, p, 1) == SUB_REAL) { + p->callwaitingrepeat--; + } + if (p->cidcwexpire) + p->cidcwexpire--; + /* Repeat callwaiting */ + if (p->callwaitingrepeat == 1) { + p->callwaitrings++; + dahdi_callwait(ast); + } + /* Expire CID/CW */ + if (p->cidcwexpire == 1) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "CPE does not support Call Waiting Caller*ID.\n"); + restore_conference(p); + } + if (p->subs[index].linear) { + p->subs[index].f.datalen = READ_SIZE * 2; + } else + p->subs[index].f.datalen = READ_SIZE; + + /* Handle CallerID Transmission */ + if ((p->owner == ast) && p->cidspill &&((ast->_state == AST_STATE_UP) || (ast->rings == p->cidrings))) { + send_callerid(p); + } + + p->subs[index].f.frametype = AST_FRAME_VOICE; + p->subs[index].f.subclass = ast->rawreadformat; + p->subs[index].f.samples = READ_SIZE; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = AST_FRIENDLY_OFFSET; + p->subs[index].f.data = p->subs[index].buffer + AST_FRIENDLY_OFFSET / sizeof(p->subs[index].buffer[0]); +#if 0 + ast_log(LOG_DEBUG, "Read %d of voice on %s\n", p->subs[index].f.datalen, ast->name); +#endif + if (p->dialing || /* Transmitting something */ + (index && (ast->_state != AST_STATE_UP)) || /* Three-way or callwait that isn't up */ + ((index == SUB_CALLWAIT) && !p->subs[SUB_CALLWAIT].inthreeway) /* Inactive and non-confed call-wait */ + ) { + /* Whoops, we're still dialing, or in a state where we shouldn't transmit.... + don't send anything */ + p->subs[index].f.frametype = AST_FRAME_NULL; + p->subs[index].f.subclass = 0; + p->subs[index].f.samples = 0; + p->subs[index].f.mallocd = 0; + p->subs[index].f.offset = 0; + p->subs[index].f.data = NULL; + p->subs[index].f.datalen= 0; + } + if (p->dsp && (!p->ignoredtmf || p->callwaitcas || p->busydetect || p->callprogress) && !index) { + /* Perform busy detection. etc on the dahdi line */ + f = ast_dsp_process(ast, p->dsp, &p->subs[index].f); + if (f) { + if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_BUSY)) { + if ((ast->_state == AST_STATE_UP) && !p->outgoing) { + /* Treat this as a "hangup" instead of a "busy" on the assumption that + a busy */ + f = NULL; + } + } else if (f->frametype == AST_FRAME_DTMF) { +#ifdef HAVE_PRI + if (!p->proceeding && p->sig==SIG_PRI && p->pri && p->pri->overlapdial) { + /* Don't accept in-band DTMF when in overlap dial mode */ + f->frametype = AST_FRAME_NULL; + f->subclass = 0; + } +#endif + /* DSP clears us of being pulse */ + p->pulsedial = 0; + } + } + } else + f = &p->subs[index].f; + + if (f && (f->frametype == AST_FRAME_DTMF)) + dahdi_handle_dtmfup(ast, index, &f); + + /* If we have a fake_event, trigger exception to handle it */ + if (p->fake_event) + ast_set_flag(ast, AST_FLAG_EXCEPTION); + + ast_mutex_unlock(&p->lock); + return f; +} + +static int my_dahdi_write(struct dahdi_pvt *p, unsigned char *buf, int len, int index, int linear) +{ + int sent=0; + int size; + int res; + int fd; + fd = p->subs[index].dfd; + while (len) { + size = len; + if (size > (linear ? READ_SIZE * 2 : READ_SIZE)) + size = (linear ? READ_SIZE * 2 : READ_SIZE); + res = write(fd, buf, size); + if (res != size) { + if (option_debug) + ast_log(LOG_DEBUG, "Write returned %d (%s) on channel %d\n", res, strerror(errno), p->channel); + return sent; + } + len -= size; + buf += size; + } + return sent; +} + +static int dahdi_write(struct ast_channel *ast, struct ast_frame *frame) +{ + struct dahdi_pvt *p = ast->tech_pvt; + int res; + int index; + index = dahdi_get_index(ast, p, 0); + if (index < 0) { + ast_log(LOG_WARNING, "%s doesn't really exist?\n", ast->name); + return -1; + } + +#if 0 +#ifdef HAVE_PRI + ast_mutex_lock(&p->lock); + if (!p->proceeding && p->sig==SIG_PRI && p->pri && !p->outgoing) { + if (p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), !p->digital); + pri_rel(p->pri); + } else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->proceeding=1; + } + ast_mutex_unlock(&p->lock); +#endif +#endif + /* Write a frame of (presumably voice) data */ + if (frame->frametype != AST_FRAME_VOICE) { + if (frame->frametype != AST_FRAME_IMAGE) + ast_log(LOG_WARNING, "Don't know what to do with frame type '%d'\n", frame->frametype); + return 0; + } + if ((frame->subclass != AST_FORMAT_SLINEAR) && + (frame->subclass != AST_FORMAT_ULAW) && + (frame->subclass != AST_FORMAT_ALAW)) { + ast_log(LOG_WARNING, "Cannot handle frames in %d format\n", frame->subclass); + return -1; + } + if (p->dialing) { + if (option_debug) + ast_log(LOG_DEBUG, "Dropping frame since I'm still dialing on %s...\n",ast->name); + return 0; + } + if (!p->owner) { + if (option_debug) + ast_log(LOG_DEBUG, "Dropping frame since there is no active owner on %s...\n",ast->name); + return 0; + } + if (p->cidspill) { + if (option_debug) + ast_log(LOG_DEBUG, "Dropping frame since I've still got a callerid spill\n"); + return 0; + } + /* Return if it's not valid data */ + if (!frame->data || !frame->datalen) + return 0; + + if (frame->subclass == AST_FORMAT_SLINEAR) { + if (!p->subs[index].linear) { + p->subs[index].linear = 1; + res = dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); + if (res) + ast_log(LOG_WARNING, "Unable to set linear mode on channel %d\n", p->channel); + } + res = my_dahdi_write(p, (unsigned char *)frame->data, frame->datalen, index, 1); + } else { + /* x-law already */ + if (p->subs[index].linear) { + p->subs[index].linear = 0; + res = dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); + if (res) + ast_log(LOG_WARNING, "Unable to set companded mode on channel %d\n", p->channel); + } + res = my_dahdi_write(p, (unsigned char *)frame->data, frame->datalen, index, 0); + } + if (res < 0) { + ast_log(LOG_WARNING, "write failed: %s\n", strerror(errno)); + return -1; + } + return 0; +} + +static int dahdi_indicate(struct ast_channel *chan, int condition, const void *data, size_t datalen) +{ + struct dahdi_pvt *p = chan->tech_pvt; + int res=-1; + int index; + int func = DAHDI_FLASH; + ast_mutex_lock(&p->lock); + index = dahdi_get_index(chan, p, 0); + if (option_debug) + ast_log(LOG_DEBUG, "Requested indication %d on channel %s\n", condition, chan->name); + if (index == SUB_REAL) { + switch (condition) { + case AST_CONTROL_BUSY: +#ifdef HAVE_PRI + if (p->priindication_oob && p->sig == SIG_PRI) { + chan->hangupcause = AST_CAUSE_USER_BUSY; + chan->_softhangup |= AST_SOFTHANGUP_DEV; + res = 0; + } else if (!p->progress && p->sig==SIG_PRI && p->pri && !p->outgoing) { + if (p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1); + pri_rel(p->pri); + } + else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->progress = 1; + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_BUSY); + } else +#endif + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_BUSY); + break; + case AST_CONTROL_RINGING: +#ifdef HAVE_PRI + if ((!p->alerting) && p->sig==SIG_PRI && p->pri && !p->outgoing && (chan->_state != AST_STATE_UP)) { + if (p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_acknowledge(p->pri->pri,p->call, PVT_TO_CHANNEL(p), !p->digital); + pri_rel(p->pri); + } + else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->alerting = 1; + } +#endif + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_RINGTONE); + if (chan->_state != AST_STATE_UP) { + if ((chan->_state != AST_STATE_RING) || + ((p->sig != SIG_FXSKS) && + (p->sig != SIG_FXSLS) && + (p->sig != SIG_FXSGS))) + ast_setstate(chan, AST_STATE_RINGING); + } + break; + case AST_CONTROL_PROCEEDING: + ast_log(LOG_DEBUG,"Received AST_CONTROL_PROCEEDING on %s\n",chan->name); +#ifdef HAVE_PRI + if (!p->proceeding && p->sig==SIG_PRI && p->pri && !p->outgoing) { + if (p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_proceeding(p->pri->pri,p->call, PVT_TO_CHANNEL(p), !p->digital); + pri_rel(p->pri); + } + else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->proceeding = 1; + } +#endif + /* don't continue in ast_indicate */ + res = 0; + break; + case AST_CONTROL_PROGRESS: + ast_log(LOG_DEBUG,"Received AST_CONTROL_PROGRESS on %s\n",chan->name); +#ifdef HAVE_PRI + p->digital = 0; /* Digital-only calls isn't allows any inband progress messages */ + if (!p->progress && p->sig==SIG_PRI && p->pri && !p->outgoing) { + if (p->pri->pri) { + if (!pri_grab(p, p->pri)) { + pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1); + pri_rel(p->pri); + } + else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->progress = 1; + } +#endif + /* don't continue in ast_indicate */ + res = 0; + break; + case AST_CONTROL_CONGESTION: + chan->hangupcause = AST_CAUSE_CONGESTION; +#ifdef HAVE_PRI + if (p->priindication_oob && p->sig == SIG_PRI) { + chan->hangupcause = AST_CAUSE_SWITCH_CONGESTION; + chan->_softhangup |= AST_SOFTHANGUP_DEV; + res = 0; + } else if (!p->progress && p->sig==SIG_PRI && p->pri && !p->outgoing) { + if (p->pri) { + if (!pri_grab(p, p->pri)) { + pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1); + pri_rel(p->pri); + } else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } + p->progress = 1; + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + } else +#endif + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + break; + case AST_CONTROL_HOLD: +#ifdef HAVE_PRI + if (p->pri && !strcasecmp(p->mohinterpret, "passthrough")) { + if (!pri_grab(p, p->pri)) { + res = pri_notify(p->pri->pri, p->call, p->prioffset, PRI_NOTIFY_REMOTE_HOLD); + pri_rel(p->pri); + } else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } else +#endif + ast_moh_start(chan, data, p->mohinterpret); + break; + case AST_CONTROL_UNHOLD: +#ifdef HAVE_PRI + if (p->pri && !strcasecmp(p->mohinterpret, "passthrough")) { + if (!pri_grab(p, p->pri)) { + res = pri_notify(p->pri->pri, p->call, p->prioffset, PRI_NOTIFY_REMOTE_RETRIEVAL); + pri_rel(p->pri); + } else + ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->span); + } else +#endif + ast_moh_stop(chan); + break; + case AST_CONTROL_RADIO_KEY: + if (p->radio) + res = dahdi_set_hook(p->subs[index].dfd, DAHDI_OFFHOOK); + res = 0; + break; + case AST_CONTROL_RADIO_UNKEY: + if (p->radio) + res = dahdi_set_hook(p->subs[index].dfd, DAHDI_RINGOFF); + res = 0; + break; + case AST_CONTROL_FLASH: + /* flash hookswitch */ + if (ISTRUNK(p) && (p->sig != SIG_PRI)) { + /* Clear out the dial buffer */ + p->dop.dialstr[0] = '\0'; + if ((ioctl(p->subs[SUB_REAL].dfd,DAHDI_HOOK,&func) == -1) && (errno != EINPROGRESS)) { + ast_log(LOG_WARNING, "Unable to flash external trunk on channel %s: %s\n", + chan->name, strerror(errno)); + } else + res = 0; + } else + res = 0; + break; + case AST_CONTROL_SRCUPDATE: + res = 0; + break; + case -1: + res = tone_zone_play_tone(p->subs[index].dfd, -1); + break; + } + } else + res = 0; + ast_mutex_unlock(&p->lock); + return res; +} + +static struct ast_channel *dahdi_new(struct dahdi_pvt *i, int state, int startpbx, int index, int law, int transfercapability) +{ + struct ast_channel *tmp; + int deflaw; + int res; + int x,y; + int features; + char *b2 = NULL; + struct dahdi_params ps; + char chanprefix[*dahdi_chan_name_len + 4]; + + if (i->subs[index].owner) { + ast_log(LOG_WARNING, "Channel %d already has a %s call\n", i->channel,subnames[index]); + return NULL; + } + y = 1; + do { + if (b2) + free(b2); +#ifdef HAVE_PRI + if (i->bearer || (i->pri && (i->sig == SIG_FXSKS))) + b2 = ast_safe_string_alloc("%d:%d-%d", i->pri->trunkgroup, i->channel, y); + else +#endif + if (i->channel == CHAN_PSEUDO) + b2 = ast_safe_string_alloc("pseudo-%ld", ast_random()); + else + b2 = ast_safe_string_alloc("%d-%d", i->channel, y); + for (x = 0; x < 3; x++) { + if ((index != x) && i->subs[x].owner && !strcasecmp(b2, i->subs[x].owner->name + (!strncmp(i->subs[x].owner->name, "Zap", 3) ? 4 : 6))) + break; + } + y++; + } while (x < 3); + strcpy(chanprefix, dahdi_chan_name); + strcat(chanprefix, "/%s"); + tmp = ast_channel_alloc(0, state, i->cid_num, i->cid_name, i->accountcode, i->exten, i->context, i->amaflags, chanprefix, b2); + if (b2) /*!> b2 can be freed now, it's been copied into the channel structure */ + free(b2); + if (!tmp) + return NULL; + tmp->tech = chan_tech; + ps.channo = i->channel; + res = ioctl(i->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &ps); + if (res) { + ast_log(LOG_WARNING, "Unable to get parameters, assuming MULAW: %s\n", strerror(errno)); + ps.curlaw = DAHDI_LAW_MULAW; + } + if (ps.curlaw == DAHDI_LAW_ALAW) + deflaw = AST_FORMAT_ALAW; + else + deflaw = AST_FORMAT_ULAW; + if (law) { + if (law == DAHDI_LAW_ALAW) + deflaw = AST_FORMAT_ALAW; + else + deflaw = AST_FORMAT_ULAW; + } + tmp->fds[0] = i->subs[index].dfd; + tmp->nativeformats = AST_FORMAT_SLINEAR | deflaw; + /* Start out assuming ulaw since it's smaller :) */ + tmp->rawreadformat = deflaw; + tmp->readformat = deflaw; + tmp->rawwriteformat = deflaw; + tmp->writeformat = deflaw; + i->subs[index].linear = 0; + dahdi_setlinear(i->subs[index].dfd, i->subs[index].linear); + features = 0; + if (index == SUB_REAL) { + if (i->busydetect && CANBUSYDETECT(i)) + features |= DSP_FEATURE_BUSY_DETECT; + if ((i->callprogress & 1) && CANPROGRESSDETECT(i)) + features |= DSP_FEATURE_CALL_PROGRESS; + if ((!i->outgoing && (i->callprogress & 4)) || + (i->outgoing && (i->callprogress & 2))) { + features |= DSP_FEATURE_FAX_DETECT; + } +#ifdef DAHDI_TONEDETECT + x = DAHDI_TONEDETECT_ON | DAHDI_TONEDETECT_MUTE; + if (ioctl(i->subs[index].dfd, DAHDI_TONEDETECT, &x)) { +#endif + i->hardwaredtmf = 0; + features |= DSP_FEATURE_DTMF_DETECT; +#ifdef DAHDI_TONEDETECT + } else if (NEED_MFDETECT(i)) { + i->hardwaredtmf = 1; + features |= DSP_FEATURE_DTMF_DETECT; + } +#endif + } + if (features) { + if (i->dsp) { + ast_log(LOG_DEBUG, "Already have a dsp on %s?\n", tmp->name); + } else { + if (i->channel != CHAN_PSEUDO) + i->dsp = ast_dsp_new(); + else + i->dsp = NULL; + if (i->dsp) { + i->dsp_features = features; +#ifdef HAVE_PRI + /* We cannot do progress detection until receives PROGRESS message */ + if (i->outgoing && (i->sig == SIG_PRI)) { + /* Remember requested DSP features, don't treat + talking as ANSWER */ + i->dsp_features = features & ~DSP_PROGRESS_TALK; + features = 0; + } +#endif + ast_dsp_set_features(i->dsp, features); + ast_dsp_digitmode(i->dsp, DSP_DIGITMODE_DTMF | i->dtmfrelax); + if (!ast_strlen_zero(progzone)) + ast_dsp_set_call_progress_zone(i->dsp, progzone); + if (i->busydetect && CANBUSYDETECT(i)) { + ast_dsp_set_busy_count(i->dsp, i->busycount); + ast_dsp_set_busy_pattern(i->dsp, i->busy_tonelength, i->busy_quietlength); + } + } + } + } + + if (state == AST_STATE_RING) + tmp->rings = 1; + tmp->tech_pvt = i; + if ((i->sig == SIG_FXOKS) || (i->sig == SIG_FXOGS) || (i->sig == SIG_FXOLS)) { + /* Only FXO signalled stuff can be picked up */ + tmp->callgroup = i->callgroup; + tmp->pickupgroup = i->pickupgroup; + } + if (!ast_strlen_zero(i->language)) + ast_string_field_set(tmp, language, i->language); + if (!i->owner) + i->owner = tmp; + if (!ast_strlen_zero(i->accountcode)) + ast_string_field_set(tmp, accountcode, i->accountcode); + if (i->amaflags) + tmp->amaflags = i->amaflags; + i->subs[index].owner = tmp; + ast_copy_string(tmp->context, i->context, sizeof(tmp->context)); + ast_string_field_set(tmp, call_forward, i->call_forward); + /* If we've been told "no ADSI" then enforce it */ + if (!i->adsi) + tmp->adsicpe = AST_ADSI_UNAVAILABLE; + if (!ast_strlen_zero(i->exten)) + ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten)); + if (!ast_strlen_zero(i->rdnis)) + tmp->cid.cid_rdnis = ast_strdup(i->rdnis); + if (!ast_strlen_zero(i->dnid)) + tmp->cid.cid_dnid = ast_strdup(i->dnid); + + /* Don't use ast_set_callerid() here because it will + * generate a needless NewCallerID event */ +#ifdef PRI_ANI + if (!ast_strlen_zero(i->cid_ani)) + tmp->cid.cid_ani = ast_strdup(i->cid_ani); + else + tmp->cid.cid_ani = ast_strdup(i->cid_num); +#else + tmp->cid.cid_ani = ast_strdup(i->cid_num); +#endif + tmp->cid.cid_pres = i->callingpres; + tmp->cid.cid_ton = i->cid_ton; +#ifdef HAVE_PRI + tmp->transfercapability = transfercapability; + pbx_builtin_setvar_helper(tmp, "TRANSFERCAPABILITY", ast_transfercapability2str(transfercapability)); + if (transfercapability & PRI_TRANS_CAP_DIGITAL) + i->digital = 1; + /* Assume calls are not idle calls unless we're told differently */ + i->isidlecall = 0; + i->alreadyhungup = 0; +#endif + /* clear the fake event in case we posted one before we had ast_channel */ + i->fake_event = 0; + /* Assure there is no confmute on this channel */ + dahdi_confmute(i, 0); + /* Configure the new channel jb */ + ast_jb_configure(tmp, &global_jbconf); + if (startpbx) { + if (ast_pbx_start(tmp)) { + ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); + ast_hangup(tmp); + i->owner = NULL; + return NULL; + } + } + + ast_module_ref(ast_module_info->self); + + return tmp; +} + + +static int my_getsigstr(struct ast_channel *chan, char *str, const char *term, int ms) +{ + char c; + + *str = 0; /* start with empty output buffer */ + for (;;) + { + /* Wait for the first digit (up to specified ms). */ + c = ast_waitfordigit(chan, ms); + /* if timeout, hangup or error, return as such */ + if (c < 1) + return c; + *str++ = c; + *str = 0; + if (strchr(term, c)) + return 1; + } +} + +static int dahdi_wink(struct dahdi_pvt *p, int index) +{ + int j; + dahdi_set_hook(p->subs[index].dfd, DAHDI_WINK); + for (;;) + { + /* set bits of interest */ + j = DAHDI_IOMUX_SIGEVENT; + /* wait for some happening */ + if (ioctl(p->subs[index].dfd,DAHDI_IOMUX,&j) == -1) return(-1); + /* exit loop if we have it */ + if (j & DAHDI_IOMUX_SIGEVENT) break; + } + /* get the event info */ + if (ioctl(p->subs[index].dfd,DAHDI_GETEVENT,&j) == -1) return(-1); + return 0; +} + +static void *ss_thread(void *data) +{ + struct ast_channel *chan = data; + struct dahdi_pvt *p = chan->tech_pvt; + char exten[AST_MAX_EXTENSION] = ""; + char exten2[AST_MAX_EXTENSION] = ""; + unsigned char buf[256]; + char dtmfcid[300]; + char dtmfbuf[300]; + struct callerid_state *cs = NULL; + char *name = NULL, *number = NULL; + int distMatches; + int curRingData[3]; + int receivedRingT; + int counter1; + int counter; + int samples = 0; + struct ast_smdi_md_message *smdi_msg = NULL; + int flags; + int i; + int timeout; + int getforward = 0; + char *s1, *s2; + int len = 0; + int res; + int index; + + ast_mutex_lock(&ss_thread_lock); + ss_thread_count++; + ast_mutex_unlock(&ss_thread_lock); + /* in the bizarre case where the channel has become a zombie before we + even get started here, abort safely + */ + if (!p) { + ast_log(LOG_WARNING, "Channel became a zombie before simple switch could be started (%s)\n", chan->name); + ast_hangup(chan); + goto quit; + } + if (option_verbose > 2) + ast_verbose( VERBOSE_PREFIX_3 "Starting simple switch on '%s'\n", chan->name); + index = dahdi_get_index(chan, p, 1); + if (index < 0) { + ast_log(LOG_WARNING, "Huh?\n"); + ast_hangup(chan); + goto quit; + } + if (p->dsp) + ast_dsp_digitreset(p->dsp); + switch (p->sig) { +#ifdef HAVE_PRI + case SIG_PRI: + /* Now loop looking for an extension */ + ast_copy_string(exten, p->exten, sizeof(exten)); + len = strlen(exten); + res = 0; + while ((len < AST_MAX_EXTENSION-1) && ast_matchmore_extension(chan, chan->context, exten, 1, p->cid_num)) { + if (len && !ast_ignore_pattern(chan->context, exten)) + tone_zone_play_tone(p->subs[index].dfd, -1); + else + tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALTONE); + if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num)) + timeout = matchdigittimeout; + else + timeout = gendigittimeout; + res = ast_waitfordigit(chan, timeout); + if (res < 0) { + ast_log(LOG_DEBUG, "waitfordigit returned < 0...\n"); + ast_hangup(chan); + goto quit; + } else if (res) { + exten[len++] = res; + exten[len] = '\0'; + } else + break; + } + /* if no extension was received ('unspecified') on overlap call, use the 's' extension */ + if (ast_strlen_zero(exten)) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Going to extension s|1 because of empty extension received on overlap call\n"); + exten[0] = 's'; + exten[1] = '\0'; + } + tone_zone_play_tone(p->subs[index].dfd, -1); + if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num)) { + /* Start the real PBX */ + ast_copy_string(chan->exten, exten, sizeof(chan->exten)); + if (p->dsp) ast_dsp_digitreset(p->dsp); + dahdi_enable_ec(p); + ast_setstate(chan, AST_STATE_RING); + res = ast_pbx_run(chan); + if (res) { + ast_log(LOG_WARNING, "PBX exited non-zero!\n"); + } + } else { + ast_log(LOG_DEBUG, "No such possible extension '%s' in context '%s'\n", exten, chan->context); + chan->hangupcause = AST_CAUSE_UNALLOCATED; + ast_hangup(chan); + p->exten[0] = '\0'; + /* Since we send release complete here, we won't get one */ + p->call = NULL; + } + goto quit; + break; +#endif + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_EMWINK: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + case SIG_SFWINK: + if (dahdi_wink(p, index)) + goto quit; + /* Fall through */ + case SIG_EM: + case SIG_EM_E1: + case SIG_SF: + case SIG_FGC_CAMA: + res = tone_zone_play_tone(p->subs[index].dfd, -1); + if (p->dsp) + ast_dsp_digitreset(p->dsp); + /* set digit mode appropriately */ + if (p->dsp) { + if (NEED_MFDETECT(p)) + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_MF | p->dtmfrelax); + else + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_DTMF | p->dtmfrelax); + } + memset(dtmfbuf, 0, sizeof(dtmfbuf)); + /* Wait for the first digit only if immediate=no */ + if (!p->immediate) + /* Wait for the first digit (up to 5 seconds). */ + res = ast_waitfordigit(chan, 5000); + else + res = 0; + if (res > 0) { + /* save first char */ + dtmfbuf[0] = res; + switch (p->sig) { + case SIG_FEATD: + case SIG_SF_FEATD: + res = my_getsigstr(chan, dtmfbuf + 1, "*", 3000); + if (res > 0) + res = my_getsigstr(chan, dtmfbuf + strlen(dtmfbuf), "*", 3000); + if ((res < 1) && (p->dsp)) ast_dsp_digitreset(p->dsp); + break; + case SIG_FEATDMF_TA: + res = my_getsigstr(chan, dtmfbuf + 1, "#", 3000); + if ((res < 1) && (p->dsp)) ast_dsp_digitreset(p->dsp); + if (dahdi_wink(p, index)) goto quit; + dtmfbuf[0] = 0; + /* Wait for the first digit (up to 5 seconds). */ + res = ast_waitfordigit(chan, 5000); + if (res <= 0) break; + dtmfbuf[0] = res; + /* fall through intentionally */ + case SIG_FEATDMF: + case SIG_E911: + case SIG_FGC_CAMAMF: + case SIG_SF_FEATDMF: + res = my_getsigstr(chan, dtmfbuf + 1, "#", 3000); + /* if international caca, do it again to get real ANO */ + if ((p->sig == SIG_FEATDMF) && (dtmfbuf[1] != '0') && (strlen(dtmfbuf) != 14)) + { + if (dahdi_wink(p, index)) goto quit; + dtmfbuf[0] = 0; + /* Wait for the first digit (up to 5 seconds). */ + res = ast_waitfordigit(chan, 5000); + if (res <= 0) break; + dtmfbuf[0] = res; + res = my_getsigstr(chan, dtmfbuf + 1, "#", 3000); + } + if (res > 0) { + /* if E911, take off hook */ + if (p->sig == SIG_E911) + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + res = my_getsigstr(chan, dtmfbuf + strlen(dtmfbuf), "#", 3000); + } + if ((res < 1) && (p->dsp)) ast_dsp_digitreset(p->dsp); + break; + case SIG_FEATB: + case SIG_SF_FEATB: + res = my_getsigstr(chan, dtmfbuf + 1, "#", 3000); + if ((res < 1) && (p->dsp)) ast_dsp_digitreset(p->dsp); + break; + case SIG_EMWINK: + /* if we received a '*', we are actually receiving Feature Group D + dial syntax, so use that mode; otherwise, fall through to normal + mode + */ + if (res == '*') { + res = my_getsigstr(chan, dtmfbuf + 1, "*", 3000); + if (res > 0) + res = my_getsigstr(chan, dtmfbuf + strlen(dtmfbuf), "*", 3000); + if ((res < 1) && (p->dsp)) ast_dsp_digitreset(p->dsp); + break; + } + default: + /* If we got the first digit, get the rest */ + len = 1; + dtmfbuf[len] = '\0'; + while ((len < AST_MAX_EXTENSION-1) && ast_matchmore_extension(chan, chan->context, dtmfbuf, 1, p->cid_num)) { + if (ast_exists_extension(chan, chan->context, dtmfbuf, 1, p->cid_num)) { + timeout = matchdigittimeout; + } else { + timeout = gendigittimeout; + } + res = ast_waitfordigit(chan, timeout); + if (res < 0) { + ast_log(LOG_DEBUG, "waitfordigit returned < 0...\n"); + ast_hangup(chan); + goto quit; + } else if (res) { + dtmfbuf[len++] = res; + dtmfbuf[len] = '\0'; + } else { + break; + } + } + break; + } + } + if (res == -1) { + ast_log(LOG_WARNING, "getdtmf on channel %d: %s\n", p->channel, strerror(errno)); + ast_hangup(chan); + goto quit; + } else if (res < 0) { + ast_log(LOG_DEBUG, "Got hung up before digits finished\n"); + ast_hangup(chan); + goto quit; + } + + if (p->sig == SIG_FGC_CAMA) { + char anibuf[100]; + + if (ast_safe_sleep(chan,1000) == -1) { + ast_hangup(chan); + goto quit; + } + dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_MF | p->dtmfrelax); + res = my_getsigstr(chan, anibuf, "#", 10000); + if ((res > 0) && (strlen(anibuf) > 2)) { + if (anibuf[strlen(anibuf) - 1] == '#') + anibuf[strlen(anibuf) - 1] = 0; + ast_set_callerid(chan, anibuf + 2, NULL, anibuf + 2); + } + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_DTMF | p->dtmfrelax); + } + + ast_copy_string(exten, dtmfbuf, sizeof(exten)); + if (ast_strlen_zero(exten)) + ast_copy_string(exten, "s", sizeof(exten)); + if (p->sig == SIG_FEATD || p->sig == SIG_EMWINK) { + /* Look for Feature Group D on all E&M Wink and Feature Group D trunks */ + if (exten[0] == '*') { + char *stringp=NULL; + ast_copy_string(exten2, exten, sizeof(exten2)); + /* Parse out extension and callerid */ + stringp=exten2 +1; + s1 = strsep(&stringp, "*"); + s2 = strsep(&stringp, "*"); + if (s2) { + if (!ast_strlen_zero(p->cid_num)) + ast_set_callerid(chan, p->cid_num, NULL, p->cid_num); + else + ast_set_callerid(chan, s1, NULL, s1); + ast_copy_string(exten, s2, sizeof(exten)); + } else + ast_copy_string(exten, s1, sizeof(exten)); + } else if (p->sig == SIG_FEATD) + ast_log(LOG_WARNING, "Got a non-Feature Group D input on channel %d. Assuming E&M Wink instead\n", p->channel); + } + if ((p->sig == SIG_FEATDMF) || (p->sig == SIG_FEATDMF_TA)) { + if (exten[0] == '*') { + char *stringp=NULL; + ast_copy_string(exten2, exten, sizeof(exten2)); + /* Parse out extension and callerid */ + stringp=exten2 +1; + s1 = strsep(&stringp, "#"); + s2 = strsep(&stringp, "#"); + if (s2) { + if (!ast_strlen_zero(p->cid_num)) + ast_set_callerid(chan, p->cid_num, NULL, p->cid_num); + else + if (*(s1 + 2)) + ast_set_callerid(chan, s1 + 2, NULL, s1 + 2); + ast_copy_string(exten, s2 + 1, sizeof(exten)); + } else + ast_copy_string(exten, s1 + 2, sizeof(exten)); + } else + ast_log(LOG_WARNING, "Got a non-Feature Group D input on channel %d. Assuming E&M Wink instead\n", p->channel); + } + if ((p->sig == SIG_E911) || (p->sig == SIG_FGC_CAMAMF)) { + if (exten[0] == '*') { + char *stringp=NULL; + ast_copy_string(exten2, exten, sizeof(exten2)); + /* Parse out extension and callerid */ + stringp=exten2 +1; + s1 = strsep(&stringp, "#"); + s2 = strsep(&stringp, "#"); + if (s2 && (*(s2 + 1) == '0')) { + if (*(s2 + 2)) + ast_set_callerid(chan, s2 + 2, NULL, s2 + 2); + } + if (s1) ast_copy_string(exten, s1, sizeof(exten)); + else ast_copy_string(exten, "911", sizeof(exten)); + } else + ast_log(LOG_WARNING, "Got a non-E911/FGC CAMA input on channel %d. Assuming E&M Wink instead\n", p->channel); + } + if (p->sig == SIG_FEATB) { + if (exten[0] == '*') { + char *stringp=NULL; + ast_copy_string(exten2, exten, sizeof(exten2)); + /* Parse out extension and callerid */ + stringp=exten2 +1; + s1 = strsep(&stringp, "#"); + ast_copy_string(exten, exten2 + 1, sizeof(exten)); + } else + ast_log(LOG_WARNING, "Got a non-Feature Group B input on channel %d. Assuming E&M Wink instead\n", p->channel); + } + if ((p->sig == SIG_FEATDMF) || (p->sig == SIG_FEATDMF_TA)) { + dahdi_wink(p, index); + /* some switches require a minimum guard time between + the last FGD wink and something that answers + immediately. This ensures it */ + if (ast_safe_sleep(chan,100)) goto quit; + } + dahdi_enable_ec(p); + if (NEED_MFDETECT(p)) { + if (p->dsp) { + if (!p->hardwaredtmf) + ast_dsp_digitmode(p->dsp,DSP_DIGITMODE_DTMF | p->dtmfrelax); + else { + ast_dsp_free(p->dsp); + p->dsp = NULL; + } + } + } + + if (ast_exists_extension(chan, chan->context, exten, 1, chan->cid.cid_num)) { + ast_copy_string(chan->exten, exten, sizeof(chan->exten)); + if (p->dsp) ast_dsp_digitreset(p->dsp); + res = ast_pbx_run(chan); + if (res) { + ast_log(LOG_WARNING, "PBX exited non-zero\n"); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + } + goto quit; + } else { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_2 "Unknown extension '%s' in context '%s' requested\n", exten, chan->context); + sleep(2); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_INFO); + if (res < 0) + ast_log(LOG_WARNING, "Unable to start special tone on %d\n", p->channel); + else + sleep(1); + res = ast_streamfile(chan, "ss-noservice", chan->language); + if (res >= 0) + ast_waitstream(chan, ""); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + ast_hangup(chan); + goto quit; + } + break; + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + /* Read the first digit */ + timeout = firstdigittimeout; + /* If starting a threeway call, never timeout on the first digit so someone + can use flash-hook as a "hold" feature */ + if (p->subs[SUB_THREEWAY].owner) + timeout = 999999; + while (len < AST_MAX_EXTENSION-1) { + /* Read digit unless it's supposed to be immediate, in which case the + only answer is 's' */ + if (p->immediate) + res = 's'; + else + res = ast_waitfordigit(chan, timeout); + timeout = 0; + if (res < 0) { + ast_log(LOG_DEBUG, "waitfordigit returned < 0...\n"); + res = tone_zone_play_tone(p->subs[index].dfd, -1); + ast_hangup(chan); + goto quit; + } else if (res) { + exten[len++]=res; + exten[len] = '\0'; + } + if (!ast_ignore_pattern(chan->context, exten)) + tone_zone_play_tone(p->subs[index].dfd, -1); + else + tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALTONE); + if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num) && strcmp(exten, ast_parking_ext())) { + if (!res || !ast_matchmore_extension(chan, chan->context, exten, 1, p->cid_num)) { + if (getforward) { + /* Record this as the forwarding extension */ + ast_copy_string(p->call_forward, exten, sizeof(p->call_forward)); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %d\n", p->call_forward, p->channel); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + if (res) + break; + usleep(500000); + res = tone_zone_play_tone(p->subs[index].dfd, -1); + sleep(1); + memset(exten, 0, sizeof(exten)); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALTONE); + len = 0; + getforward = 0; + } else { + res = tone_zone_play_tone(p->subs[index].dfd, -1); + ast_copy_string(chan->exten, exten, sizeof(chan->exten)); + if (!ast_strlen_zero(p->cid_num)) { + if (!p->hidecallerid) + ast_set_callerid(chan, p->cid_num, NULL, p->cid_num); + else + ast_set_callerid(chan, NULL, NULL, p->cid_num); + } + if (!ast_strlen_zero(p->cid_name)) { + if (!p->hidecallerid) + ast_set_callerid(chan, NULL, p->cid_name, NULL); + } + ast_setstate(chan, AST_STATE_RING); + dahdi_enable_ec(p); + res = ast_pbx_run(chan); + if (res) { + ast_log(LOG_WARNING, "PBX exited non-zero\n"); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + } + goto quit; + } + } else { + /* It's a match, but they just typed a digit, and there is an ambiguous match, + so just set the timeout to matchdigittimeout and wait some more */ + timeout = matchdigittimeout; + } + } else if (res == 0) { + ast_log(LOG_DEBUG, "not enough digits (and no ambiguous match)...\n"); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + dahdi_wait_event(p->subs[index].dfd); + ast_hangup(chan); + goto quit; + } else if (p->callwaiting && !strcmp(exten, "*70")) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Disabling call waiting on %s\n", chan->name); + /* Disable call waiting if enabled */ + p->callwaiting = 0; + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + if (res) { + ast_log(LOG_WARNING, "Unable to do dial recall on channel %s: %s\n", + chan->name, strerror(errno)); + } + len = 0; + ioctl(p->subs[index].dfd,DAHDI_CONFDIAG,&len); + memset(exten, 0, sizeof(exten)); + timeout = firstdigittimeout; + + } else if (!strcmp(exten,ast_pickup_ext())) { + /* Scan all channels and see if there are any + * ringing channels that have call groups + * that equal this channels pickup group + */ + if (index == SUB_REAL) { + /* Switch us from Third call to Call Wait */ + if (p->subs[SUB_THREEWAY].owner) { + /* If you make a threeway call and the *8# a call, it should actually + look like a callwait */ + alloc_sub(p, SUB_CALLWAIT); + swap_subs(p, SUB_CALLWAIT, SUB_THREEWAY); + unalloc_sub(p, SUB_THREEWAY); + } + dahdi_enable_ec(p); + if (ast_pickup_call(chan)) { + ast_log(LOG_DEBUG, "No call pickup possible...\n"); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + dahdi_wait_event(p->subs[index].dfd); + } + ast_hangup(chan); + goto quit; + } else { + ast_log(LOG_WARNING, "Huh? Got *8# on call not on real\n"); + ast_hangup(chan); + goto quit; + } + + } else if (!p->hidecallerid && !strcmp(exten, "*67")) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Disabling Caller*ID on %s\n", chan->name); + /* Disable Caller*ID if enabled */ + p->hidecallerid = 1; + if (chan->cid.cid_num) + free(chan->cid.cid_num); + chan->cid.cid_num = NULL; + if (chan->cid.cid_name) + free(chan->cid.cid_name); + chan->cid.cid_name = NULL; + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + if (res) { + ast_log(LOG_WARNING, "Unable to do dial recall on channel %s: %s\n", + chan->name, strerror(errno)); + } + len = 0; + memset(exten, 0, sizeof(exten)); + timeout = firstdigittimeout; + } else if (p->callreturn && !strcmp(exten, "*69")) { + res = 0; + if (!ast_strlen_zero(p->lastcid_num)) { + res = ast_say_digit_str(chan, p->lastcid_num, "", chan->language); + } + if (!res) + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + break; + } else if (!strcmp(exten, "*78")) { + /* Do not disturb */ + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Enabled DND on channel %d\n", p->channel); + manager_event(EVENT_FLAG_SYSTEM, "DNDState", + "Channel: %s/%d\r\n" + "Status: enabled\r\n", dahdi_chan_name, p->channel); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + p->dnd = 1; + getforward = 0; + memset(exten, 0, sizeof(exten)); + len = 0; + } else if (!strcmp(exten, "*79")) { + /* Do not disturb */ + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Disabled DND on channel %d\n", p->channel); + manager_event(EVENT_FLAG_SYSTEM, "DNDState", + "Channel: %s/%d\r\n" + "Status: disabled\r\n", dahdi_chan_name, p->channel); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + p->dnd = 0; + getforward = 0; + memset(exten, 0, sizeof(exten)); + len = 0; + } else if (p->cancallforward && !strcmp(exten, "*72")) { + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + getforward = 1; + memset(exten, 0, sizeof(exten)); + len = 0; + } else if (p->cancallforward && !strcmp(exten, "*73")) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Cancelling call forwarding on channel %d\n", p->channel); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + memset(p->call_forward, 0, sizeof(p->call_forward)); + getforward = 0; + memset(exten, 0, sizeof(exten)); + len = 0; + } else if ((p->transfer || p->canpark) && !strcmp(exten, ast_parking_ext()) && + p->subs[SUB_THREEWAY].owner && + ast_bridged_channel(p->subs[SUB_THREEWAY].owner)) { + /* This is a three way call, the main call being a real channel, + and we're parking the first call. */ + ast_masq_park_call(ast_bridged_channel(p->subs[SUB_THREEWAY].owner), chan, 0, NULL); + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Parking call to '%s'\n", chan->name); + break; + } else if (!ast_strlen_zero(p->lastcid_num) && !strcmp(exten, "*60")) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Blacklisting number %s\n", p->lastcid_num); + res = ast_db_put("blacklist", p->lastcid_num, "1"); + if (!res) { + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + memset(exten, 0, sizeof(exten)); + len = 0; + } + } else if (p->hidecallerid && !strcmp(exten, "*82")) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Enabling Caller*ID on %s\n", chan->name); + /* Enable Caller*ID if enabled */ + p->hidecallerid = 0; + if (chan->cid.cid_num) + free(chan->cid.cid_num); + chan->cid.cid_num = NULL; + if (chan->cid.cid_name) + free(chan->cid.cid_name); + chan->cid.cid_name = NULL; + ast_set_callerid(chan, p->cid_num, p->cid_name, NULL); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_DIALRECALL); + if (res) { + ast_log(LOG_WARNING, "Unable to do dial recall on channel %s: %s\n", + chan->name, strerror(errno)); + } + len = 0; + memset(exten, 0, sizeof(exten)); + timeout = firstdigittimeout; + } else if (!strcmp(exten, "*0")) { + struct ast_channel *nbridge = + p->subs[SUB_THREEWAY].owner; + struct dahdi_pvt *pbridge = NULL; + /* set up the private struct of the bridged one, if any */ + if (nbridge && ast_bridged_channel(nbridge)) + pbridge = ast_bridged_channel(nbridge)->tech_pvt; + if (nbridge && pbridge && + (nbridge->tech == chan_tech) && + (ast_bridged_channel(nbridge)->tech == chan_tech) && + ISTRUNK(pbridge)) { + int func = DAHDI_FLASH; + /* Clear out the dial buffer */ + p->dop.dialstr[0] = '\0'; + /* flash hookswitch */ + if ((ioctl(pbridge->subs[SUB_REAL].dfd,DAHDI_HOOK,&func) == -1) && (errno != EINPROGRESS)) { + ast_log(LOG_WARNING, "Unable to flash external trunk on channel %s: %s\n", + nbridge->name, strerror(errno)); + } + swap_subs(p, SUB_REAL, SUB_THREEWAY); + unalloc_sub(p, SUB_THREEWAY); + p->owner = p->subs[SUB_REAL].owner; + if (ast_bridged_channel(p->subs[SUB_REAL].owner)) + ast_queue_control(p->subs[SUB_REAL].owner, AST_CONTROL_UNHOLD); + ast_hangup(chan); + goto quit; + } else { + tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + dahdi_wait_event(p->subs[index].dfd); + tone_zone_play_tone(p->subs[index].dfd, -1); + swap_subs(p, SUB_REAL, SUB_THREEWAY); + unalloc_sub(p, SUB_THREEWAY); + p->owner = p->subs[SUB_REAL].owner; + ast_hangup(chan); + goto quit; + } + } else if (!ast_canmatch_extension(chan, chan->context, exten, 1, chan->cid.cid_num) && + ((exten[0] != '*') || (strlen(exten) > 2))) { + if (option_debug) + ast_log(LOG_DEBUG, "Can't match %s from '%s' in context %s\n", exten, chan->cid.cid_num ? chan->cid.cid_num : "<Unknown Caller>", chan->context); + break; + } + if (!timeout) + timeout = gendigittimeout; + if (len && !ast_ignore_pattern(chan->context, exten)) + tone_zone_play_tone(p->subs[index].dfd, -1); + } + break; + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: +#ifdef HAVE_PRI + if (p->pri) { + /* This is a GR-303 trunk actually. Wait for the first ring... */ + struct ast_frame *f; + int res; + time_t start; + + time(&start); + ast_setstate(chan, AST_STATE_RING); + while (time(NULL) < start + 3) { + res = ast_waitfor(chan, 1000); + if (res) { + f = ast_read(chan); + if (!f) { + ast_log(LOG_WARNING, "Whoa, hangup while waiting for first ring!\n"); + ast_hangup(chan); + goto quit; + } else if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RING)) { + res = 1; + } else + res = 0; + ast_frfree(f); + if (res) { + ast_log(LOG_DEBUG, "Got ring!\n"); + res = 0; + break; + } + } + } + } +#endif + /* check for SMDI messages */ + if (p->use_smdi && p->smdi_iface) { + smdi_msg = ast_smdi_md_message_wait(p->smdi_iface, SMDI_MD_WAIT_TIMEOUT); + + if (smdi_msg != NULL) { + ast_copy_string(chan->exten, smdi_msg->fwd_st, sizeof(chan->exten)); + + if (smdi_msg->type == 'B') + pbx_builtin_setvar_helper(chan, "_SMDI_VM_TYPE", "b"); + else if (smdi_msg->type == 'N') + pbx_builtin_setvar_helper(chan, "_SMDI_VM_TYPE", "u"); + + ast_log(LOG_DEBUG, "Recieved SMDI message on %s\n", chan->name); + } else { + ast_log(LOG_WARNING, "SMDI enabled but no SMDI message present\n"); + } + } + + if (p->use_callerid && (p->cid_signalling == CID_SIG_SMDI && smdi_msg)) { + number = smdi_msg->calling_st; + + /* If we want caller id, we're in a prering state due to a polarity reversal + * and we're set to use a polarity reversal to trigger the start of caller id, + * grab the caller id and wait for ringing to start... */ + } else if (p->use_callerid && (chan->_state == AST_STATE_PRERING && p->cid_start == CID_START_POLARITY)) { + /* If set to use DTMF CID signalling, listen for DTMF */ + if (p->cid_signalling == CID_SIG_DTMF) { + int i = 0; + cs = NULL; + ast_log(LOG_DEBUG, "Receiving DTMF cid on " + "channel %s\n", chan->name); + dahdi_setlinear(p->subs[index].dfd, 0); + res = 2000; + for (;;) { + struct ast_frame *f; + res = ast_waitfor(chan, res); + if (res <= 0) { + ast_log(LOG_WARNING, "DTMFCID timed out waiting for ring. " + "Exiting simple switch\n"); + ast_hangup(chan); + goto quit; + } + f = ast_read(chan); + if (!f) + break; + if (f->frametype == AST_FRAME_DTMF) { + dtmfbuf[i++] = f->subclass; + ast_log(LOG_DEBUG, "CID got digit '%c'\n", f->subclass); + res = 2000; + } + ast_frfree(f); + if (chan->_state == AST_STATE_RING || + chan->_state == AST_STATE_RINGING) + break; /* Got ring */ + } + dtmfbuf[i] = '\0'; + dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); + /* Got cid and ring. */ + ast_log(LOG_DEBUG, "CID got string '%s'\n", dtmfbuf); + callerid_get_dtmf(dtmfbuf, dtmfcid, &flags); + ast_log(LOG_DEBUG, "CID is '%s', flags %d\n", + dtmfcid, flags); + /* If first byte is NULL, we have no cid */ + if (!ast_strlen_zero(dtmfcid)) + number = dtmfcid; + else + number = NULL; + /* If set to use V23 Signalling, launch our FSK gubbins and listen for it */ + } else if ((p->cid_signalling == CID_SIG_V23) || (p->cid_signalling == CID_SIG_V23_JP)) { + cs = callerid_new(p->cid_signalling); + if (cs) { + samples = 0; +#if 1 + bump_gains(p); +#endif + /* Take out of linear mode for Caller*ID processing */ + dahdi_setlinear(p->subs[index].dfd, 0); + + /* First we wait and listen for the Caller*ID */ + for (;;) { + i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT; + if ((res = ioctl(p->subs[index].dfd, DAHDI_IOMUX, &i))) { + ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + if (i & DAHDI_IOMUX_SIGEVENT) { + res = dahdi_get_event(p->subs[index].dfd); + ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res)); + + if (p->cid_signalling == CID_SIG_V23_JP) { +#ifdef DAHDI_EVENT_RINGBEGIN + if (res == DAHDI_EVENT_RINGBEGIN) { + res = dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + usleep(1); + } +#endif + } else { + res = 0; + break; + } + } else if (i & DAHDI_IOMUX_READ) { + res = read(p->subs[index].dfd, buf, sizeof(buf)); + if (res < 0) { + if (errno != ELAST) { + ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + break; + } + samples += res; + + if (p->cid_signalling == CID_SIG_V23_JP) { + res = callerid_feed_jp(cs, buf, res, AST_LAW(p)); + } else { + res = callerid_feed(cs, buf, res, AST_LAW(p)); + } + + if (res < 0) { + ast_log(LOG_WARNING, "CallerID feed failed on channel '%s'\n", chan->name); + break; + } else if (res) + break; + else if (samples > (8000 * 10)) + break; + } + } + if (res == 1) { + callerid_get(cs, &name, &number, &flags); + ast_log(LOG_NOTICE, "CallerID number: %s, name: %s, flags=%d\n", number, name, flags); + } + + if (p->cid_signalling == CID_SIG_V23_JP) { + res = dahdi_set_hook(p->subs[SUB_REAL].dfd, DAHDI_ONHOOK); + usleep(1); + res = 4000; + } else { + + /* Finished with Caller*ID, now wait for a ring to make sure there really is a call coming */ + res = 2000; + } + + for (;;) { + struct ast_frame *f; + res = ast_waitfor(chan, res); + if (res <= 0) { + ast_log(LOG_WARNING, "CID timed out waiting for ring. " + "Exiting simple switch\n"); + ast_hangup(chan); + goto quit; + } + if (!(f = ast_read(chan))) { + ast_log(LOG_WARNING, "Hangup received waiting for ring. Exiting simple switch\n"); + ast_hangup(chan); + goto quit; + } + ast_frfree(f); + if (chan->_state == AST_STATE_RING || + chan->_state == AST_STATE_RINGING) + break; /* Got ring */ + } + + /* We must have a ring by now, so, if configured, lets try to listen for + * distinctive ringing */ + if (p->usedistinctiveringdetection == 1) { + len = 0; + distMatches = 0; + /* Clear the current ring data array so we dont have old data in it. */ + for (receivedRingT = 0; receivedRingT < (sizeof(curRingData) / sizeof(curRingData[0])); receivedRingT++) + curRingData[receivedRingT] = 0; + receivedRingT = 0; + counter = 0; + counter1 = 0; + /* Check to see if context is what it should be, if not set to be. */ + if (strcmp(p->context,p->defcontext) != 0) { + ast_copy_string(p->context, p->defcontext, sizeof(p->context)); + ast_copy_string(chan->context,p->defcontext,sizeof(chan->context)); + } + + for (;;) { + i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT; + if ((res = ioctl(p->subs[index].dfd, DAHDI_IOMUX, &i))) { + ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + if (i & DAHDI_IOMUX_SIGEVENT) { + res = dahdi_get_event(p->subs[index].dfd); + ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res)); + res = 0; + /* Let us detect distinctive ring */ + + curRingData[receivedRingT] = p->ringt; + + if (p->ringt < p->ringt_base/2) + break; + /* Increment the ringT counter so we can match it against + values in chan_dahdi.conf for distinctive ring */ + if (++receivedRingT == (sizeof(curRingData) / sizeof(curRingData[0]))) + break; + } else if (i & DAHDI_IOMUX_READ) { + res = read(p->subs[index].dfd, buf, sizeof(buf)); + if (res < 0) { + if (errno != ELAST) { + ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + break; + } + if (p->ringt) + p->ringt--; + if (p->ringt == 1) { + res = -1; + break; + } + } + } + if (option_verbose > 2) + /* this only shows up if you have n of the dring patterns filled in */ + ast_verbose( VERBOSE_PREFIX_3 "Detected ring pattern: %d,%d,%d\n",curRingData[0],curRingData[1],curRingData[2]); + + for (counter = 0; counter < 3; counter++) { + /* Check to see if the rings we received match any of the ones in chan_dahdi.conf for this + channel */ + distMatches = 0; + for (counter1 = 0; counter1 < 3; counter1++) { + if (curRingData[counter1] <= (p->drings.ringnum[counter].ring[counter1]+10) && curRingData[counter1] >= + (p->drings.ringnum[counter].ring[counter1]-10)) { + distMatches++; + } + } + if (distMatches == 3) { + /* The ring matches, set the context to whatever is for distinctive ring.. */ + ast_copy_string(p->context, p->drings.ringContext[counter].contextData, sizeof(p->context)); + ast_copy_string(chan->context, p->drings.ringContext[counter].contextData, sizeof(chan->context)); + if (option_verbose > 2) + ast_verbose( VERBOSE_PREFIX_3 "Distinctive Ring matched context %s\n",p->context); + break; + } + } + } + /* Restore linear mode (if appropriate) for Caller*ID processing */ + dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); +#if 1 + restore_gains(p); +#endif + } else + ast_log(LOG_WARNING, "Unable to get caller ID space\n"); + } else { + ast_log(LOG_WARNING, "Channel %s in prering " + "state, but I have nothing to do. " + "Terminating simple switch, should be " + "restarted by the actual ring.\n", + chan->name); + ast_hangup(chan); + goto quit; + } + } else if (p->use_callerid && p->cid_start == CID_START_RING) { + /* FSK Bell202 callerID */ + cs = callerid_new(p->cid_signalling); + if (cs) { +#if 1 + bump_gains(p); +#endif + samples = 0; + len = 0; + distMatches = 0; + /* Clear the current ring data array so we dont have old data in it. */ + for (receivedRingT = 0; receivedRingT < (sizeof(curRingData) / sizeof(curRingData[0])); receivedRingT++) + curRingData[receivedRingT] = 0; + receivedRingT = 0; + counter = 0; + counter1 = 0; + /* Check to see if context is what it should be, if not set to be. */ + if (strcmp(p->context,p->defcontext) != 0) { + ast_copy_string(p->context, p->defcontext, sizeof(p->context)); + ast_copy_string(chan->context,p->defcontext,sizeof(chan->context)); + } + + /* Take out of linear mode for Caller*ID processing */ + dahdi_setlinear(p->subs[index].dfd, 0); + for (;;) { + i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT; + if ((res = ioctl(p->subs[index].dfd, DAHDI_IOMUX, &i))) { + ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + if (i & DAHDI_IOMUX_SIGEVENT) { + res = dahdi_get_event(p->subs[index].dfd); + ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res)); + /* If we get a PR event, they hung up while processing calerid */ + if ( res == DAHDI_EVENT_POLARITY && p->hanguponpolarityswitch && p->polarity == POLARITY_REV) { + ast_log(LOG_DEBUG, "Hanging up due to polarity reversal on channel %d while detecting callerid\n", p->channel); + p->polarity = POLARITY_IDLE; + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + res = 0; + /* Let us detect callerid when the telco uses distinctive ring */ + + curRingData[receivedRingT] = p->ringt; + + if (p->ringt < p->ringt_base/2) + break; + /* Increment the ringT counter so we can match it against + values in chan_dahdi.conf for distinctive ring */ + if (++receivedRingT == (sizeof(curRingData) / sizeof(curRingData[0]))) + break; + } else if (i & DAHDI_IOMUX_READ) { + res = read(p->subs[index].dfd, buf, sizeof(buf)); + if (res < 0) { + if (errno != ELAST) { + ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + break; + } + if (p->ringt) + p->ringt--; + if (p->ringt == 1) { + res = -1; + break; + } + samples += res; + res = callerid_feed(cs, buf, res, AST_LAW(p)); + if (res < 0) { + ast_log(LOG_WARNING, "CallerID feed failed: %s\n", strerror(errno)); + break; + } else if (res) + break; + else if (samples > (8000 * 10)) + break; + } + } + if (res == 1) { + callerid_get(cs, &name, &number, &flags); + if (option_debug) + ast_log(LOG_DEBUG, "CallerID number: %s, name: %s, flags=%d\n", number, name, flags); + } + if (distinctiveringaftercid == 1) { + /* Clear the current ring data array so we dont have old data in it. */ + for (receivedRingT = 0; receivedRingT < 3; receivedRingT++) { + curRingData[receivedRingT] = 0; + } + receivedRingT = 0; + if (option_verbose > 2) + ast_verbose( VERBOSE_PREFIX_3 "Detecting post-CID distinctive ring\n"); + for (;;) { + i = DAHDI_IOMUX_READ | DAHDI_IOMUX_SIGEVENT; + if ((res = ioctl(p->subs[index].dfd, DAHDI_IOMUX, &i))) { + ast_log(LOG_WARNING, "I/O MUX failed: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + if (i & DAHDI_IOMUX_SIGEVENT) { + res = dahdi_get_event(p->subs[index].dfd); + ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res)); + res = 0; + /* Let us detect callerid when the telco uses distinctive ring */ + + curRingData[receivedRingT] = p->ringt; + + if (p->ringt < p->ringt_base/2) + break; + /* Increment the ringT counter so we can match it against + values in chan_dahdi.conf for distinctive ring */ + if (++receivedRingT == (sizeof(curRingData) / sizeof(curRingData[0]))) + break; + } else if (i & DAHDI_IOMUX_READ) { + res = read(p->subs[index].dfd, buf, sizeof(buf)); + if (res < 0) { + if (errno != ELAST) { + ast_log(LOG_WARNING, "read returned error: %s\n", strerror(errno)); + callerid_free(cs); + ast_hangup(chan); + goto quit; + } + break; + } + if (p->ringt) + p->ringt--; + if (p->ringt == 1) { + res = -1; + break; + } + } + } + } + if (p->usedistinctiveringdetection == 1) { + if (option_verbose > 2) + /* this only shows up if you have n of the dring patterns filled in */ + ast_verbose( VERBOSE_PREFIX_3 "Detected ring pattern: %d,%d,%d\n",curRingData[0],curRingData[1],curRingData[2]); + + for (counter = 0; counter < 3; counter++) { + /* Check to see if the rings we received match any of the ones in chan_dahdi.conf for this + channel */ + if (option_verbose > 2) + /* this only shows up if you have n of the dring patterns filled in */ + ast_verbose( VERBOSE_PREFIX_3 "Checking %d,%d,%d\n", + p->drings.ringnum[counter].ring[0], + p->drings.ringnum[counter].ring[1], + p->drings.ringnum[counter].ring[2]); + distMatches = 0; + for (counter1 = 0; counter1 < 3; counter1++) { + if (curRingData[counter1] <= (p->drings.ringnum[counter].ring[counter1]+10) && curRingData[counter1] >= + (p->drings.ringnum[counter].ring[counter1]-10)) { + distMatches++; + } + } + if (distMatches == 3) { + /* The ring matches, set the context to whatever is for distinctive ring.. */ + ast_copy_string(p->context, p->drings.ringContext[counter].contextData, sizeof(p->context)); + ast_copy_string(chan->context, p->drings.ringContext[counter].contextData, sizeof(chan->context)); + if (option_verbose > 2) + ast_verbose( VERBOSE_PREFIX_3 "Distinctive Ring matched context %s\n",p->context); + break; + } + } + } + /* Restore linear mode (if appropriate) for Caller*ID processing */ + dahdi_setlinear(p->subs[index].dfd, p->subs[index].linear); +#if 1 + restore_gains(p); +#endif + if (res < 0) { + ast_log(LOG_WARNING, "CallerID returned with error on channel '%s'\n", chan->name); + } + } else + ast_log(LOG_WARNING, "Unable to get caller ID space\n"); + } + else + cs = NULL; + + if (number) + ast_shrink_phone_number(number); + ast_set_callerid(chan, number, name, number); + + if (smdi_msg) + ASTOBJ_UNREF(smdi_msg, ast_smdi_md_message_destroy); + + if (cs) + callerid_free(cs); + + ast_setstate(chan, AST_STATE_RING); + chan->rings = 1; + p->ringt = p->ringt_base; + res = ast_pbx_run(chan); + if (res) { + ast_hangup(chan); + ast_log(LOG_WARNING, "PBX exited non-zero\n"); + } + goto quit; + default: + ast_log(LOG_WARNING, "Don't know how to handle simple switch with signalling %s on channel %d\n", sig2str(p->sig), p->channel); + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", p->channel); + } + res = tone_zone_play_tone(p->subs[index].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", p->channel); + ast_hangup(chan); +quit: + ast_mutex_lock(&ss_thread_lock); + ss_thread_count--; + ast_cond_signal(&ss_thread_complete); + ast_mutex_unlock(&ss_thread_lock); + return NULL; +} + +/* destroy a DAHDI channel, identified by its number */ +static int dahdi_destroy_channel_bynum(int channel) +{ + struct dahdi_pvt *tmp = NULL; + struct dahdi_pvt *prev = NULL; + + tmp = iflist; + while (tmp) { + if (tmp->channel == channel) { + int x = DAHDI_FLASH; + ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); /* important to create an event for dahdi_wait_event to register so that all ss_threads terminate */ + destroy_channel(prev, tmp, 1); + ast_module_unref(ast_module_info->self); + return RESULT_SUCCESS; + } + prev = tmp; + tmp = tmp->next; + } + return RESULT_FAILURE; +} + +static int handle_init_event(struct dahdi_pvt *i, int event) +{ + int res; + pthread_t threadid; + pthread_attr_t attr; + struct ast_channel *chan; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + /* Handle an event on a given channel for the monitor thread. */ + switch (event) { + case DAHDI_EVENT_NONE: + case DAHDI_EVENT_BITSCHANGED: + break; + case DAHDI_EVENT_WINKFLASH: + case DAHDI_EVENT_RINGOFFHOOK: + if (i->inalarm) break; + if (i->radio) break; + /* Got a ring/answer. What kind of channel are we? */ + switch (i->sig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FXOKS: + res = dahdi_set_hook(i->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + if (res && (errno == EBUSY)) + break; + if (i->cidspill) { + /* Cancel VMWI spill */ + free(i->cidspill); + i->cidspill = NULL; + } + if (i->immediate) { + dahdi_enable_ec(i); + /* The channel is immediately up. Start right away */ + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_RINGTONE); + chan = dahdi_new(i, AST_STATE_RING, 1, SUB_REAL, 0, 0); + if (!chan) { + ast_log(LOG_WARNING, "Unable to start PBX on channel %d\n", i->channel); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", i->channel); + } + } else { + /* Check for callerid, digits, etc */ + chan = dahdi_new(i, AST_STATE_RESERVED, 0, SUB_REAL, 0, 0); + if (chan) { + if (has_voicemail(i)) + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_STUTTER); + else + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_DIALTONE); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play dialtone on channel %d, do you have defaultzone and loadzone defined?\n", i->channel); + if (ast_pthread_create(&threadid, &attr, ss_thread, chan)) { + ast_log(LOG_WARNING, "Unable to start simple switch thread on channel %d\n", i->channel); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", i->channel); + ast_hangup(chan); + } + } else + ast_log(LOG_WARNING, "Unable to create channel\n"); + } + break; + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + i->ringt = i->ringt_base; + /* Fall through */ + case SIG_EMWINK: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_EM: + case SIG_EM_E1: + case SIG_SFWINK: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + case SIG_SF: + /* Check for callerid, digits, etc */ + chan = dahdi_new(i, AST_STATE_RING, 0, SUB_REAL, 0, 0); + if (chan && ast_pthread_create(&threadid, &attr, ss_thread, chan)) { + ast_log(LOG_WARNING, "Unable to start simple switch thread on channel %d\n", i->channel); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", i->channel); + ast_hangup(chan); + } else if (!chan) { + ast_log(LOG_WARNING, "Cannot allocate new structure on channel %d\n", i->channel); + } + break; + default: + ast_log(LOG_WARNING, "Don't know how to handle ring/answer with signalling %s on channel %d\n", sig2str(i->sig), i->channel); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, DAHDI_TONE_CONGESTION); + if (res < 0) + ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", i->channel); + return -1; + } + break; + case DAHDI_EVENT_NOALARM: + i->inalarm = 0; + if (!i->unknown_alarm) { + ast_log(LOG_NOTICE, "Alarm cleared on channel %d\n", i->channel); + manager_event(EVENT_FLAG_SYSTEM, "AlarmClear", + "Channel: %d\r\n", i->channel); + } else { + i->unknown_alarm = 0; + } + break; + case DAHDI_EVENT_ALARM: + i->inalarm = 1; + res = get_alarms(i); + handle_alarms(i, res); + /* fall thru intentionally */ + case DAHDI_EVENT_ONHOOK: + if (i->radio) + break; + /* Back on hook. Hang up. */ + switch (i->sig) { + case SIG_FXOLS: + case SIG_FXOGS: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_E911: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_FEATB: + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + case SIG_SF: + case SIG_SFWINK: + case SIG_FXSLS: + case SIG_FXSGS: + case SIG_FXSKS: + case SIG_GR303FXSKS: + dahdi_disable_ec(i); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, -1); + dahdi_set_hook(i->subs[SUB_REAL].dfd, DAHDI_ONHOOK); + break; + case SIG_GR303FXOKS: + case SIG_FXOKS: + dahdi_disable_ec(i); + /* Diddle the battery for the zhone */ +#ifdef ZHONE_HACK + dahdi_set_hook(i->subs[SUB_REAL].dfd, DAHDI_OFFHOOK); + usleep(1); +#endif + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, -1); + dahdi_set_hook(i->subs[SUB_REAL].dfd, DAHDI_ONHOOK); + break; + case SIG_PRI: + dahdi_disable_ec(i); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, -1); + break; + default: + ast_log(LOG_WARNING, "Don't know how to handle on hook with signalling %s on channel %d\n", sig2str(i->sig), i->channel); + res = tone_zone_play_tone(i->subs[SUB_REAL].dfd, -1); + return -1; + } + break; + case DAHDI_EVENT_POLARITY: + switch (i->sig) { + case SIG_FXSLS: + case SIG_FXSKS: + case SIG_FXSGS: + /* We have already got a PR before the channel was + created, but it wasn't handled. We need polarity + to be REV for remote hangup detection to work. + At least in Spain */ + if (i->hanguponpolarityswitch) + i->polarity = POLARITY_REV; + + if (i->cid_start == CID_START_POLARITY) { + i->polarity = POLARITY_REV; + ast_verbose(VERBOSE_PREFIX_2 "Starting post polarity " + "CID detection on channel %d\n", + i->channel); + chan = dahdi_new(i, AST_STATE_PRERING, 0, SUB_REAL, 0, 0); + if (chan && ast_pthread_create(&threadid, &attr, ss_thread, chan)) { + ast_log(LOG_WARNING, "Unable to start simple switch thread on channel %d\n", i->channel); + } + } + break; + default: + ast_log(LOG_WARNING, "handle_init_event detected " + "polarity reversal on non-FXO (SIG_FXS) " + "interface %d\n", i->channel); + } + break; + case DAHDI_EVENT_REMOVED: /* destroy channel */ + ast_log(LOG_NOTICE, + "Got DAHDI_EVENT_REMOVED. Destroying channel %d\n", + i->channel); + dahdi_destroy_channel_bynum(i->channel); + break; + } + pthread_attr_destroy(&attr); + return 0; +} + +static void *do_monitor(void *data) +{ + int count, res, res2, spoint, pollres=0; + struct dahdi_pvt *i; + struct dahdi_pvt *last = NULL; + time_t thispass = 0, lastpass = 0; + int found; + char buf[1024]; + struct pollfd *pfds=NULL; + int lastalloc = -1; + /* This thread monitors all the frame relay interfaces which are not yet in use + (and thus do not have a separate thread) indefinitely */ + /* From here on out, we die whenever asked */ +#if 0 + if (pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL)) { + ast_log(LOG_WARNING, "Unable to set cancel type to asynchronous\n"); + return NULL; + } + ast_log(LOG_DEBUG, "Monitor starting...\n"); +#endif + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); + + for (;;) { + /* Lock the interface list */ + ast_mutex_lock(&iflock); + if (!pfds || (lastalloc != ifcount)) { + if (pfds) { + free(pfds); + pfds = NULL; + } + if (ifcount) { + if (!(pfds = ast_calloc(1, ifcount * sizeof(*pfds)))) { + ast_mutex_unlock(&iflock); + return NULL; + } + } + lastalloc = ifcount; + } + /* Build the stuff we're going to poll on, that is the socket of every + dahdi_pvt that does not have an associated owner channel */ + count = 0; + i = iflist; + while (i) { + if ((i->subs[SUB_REAL].dfd > -1) && i->sig && (!i->radio)) { + if (!i->owner && !i->subs[SUB_REAL].owner) { + /* This needs to be watched, as it lacks an owner */ + pfds[count].fd = i->subs[SUB_REAL].dfd; + pfds[count].events = POLLPRI; + pfds[count].revents = 0; + /* Message waiting or r2 channels also get watched for reading */ + if (i->cidspill) + pfds[count].events |= POLLIN; + count++; + } + } + i = i->next; + } + /* Okay, now that we know what to do, release the interface lock */ + ast_mutex_unlock(&iflock); + + pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); + pthread_testcancel(); + /* Wait at least a second for something to happen */ + res = poll(pfds, count, 1000); + pthread_testcancel(); + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); + + /* Okay, poll has finished. Let's see what happened. */ + if (res < 0) { + if ((errno != EAGAIN) && (errno != EINTR)) + ast_log(LOG_WARNING, "poll return %d: %s\n", res, strerror(errno)); + continue; + } + /* Alright, lock the interface list again, and let's look and see what has + happened */ + ast_mutex_lock(&iflock); + found = 0; + spoint = 0; + lastpass = thispass; + thispass = time(NULL); + i = iflist; + while (i) { + if (thispass != lastpass) { + if (!found && ((i == last) || ((i == iflist) && !last))) { + last = i; + if (last) { + if (!last->cidspill && !last->owner && !ast_strlen_zero(last->mailbox) && (thispass - last->onhooktime > 3) && + (last->sig & __DAHDI_SIG_FXO)) { + res = ast_app_has_voicemail(last->mailbox, NULL); + if (last->msgstate != res) { + int x; + ast_log(LOG_DEBUG, "Message status for %s changed from %d to %d on %d\n", last->mailbox, last->msgstate, res, last->channel); + x = DAHDI_FLUSH_BOTH; + res2 = ioctl(last->subs[SUB_REAL].dfd, DAHDI_FLUSH, &x); + if (res2) + ast_log(LOG_WARNING, "Unable to flush input on channel %d: %s\n", last->channel, strerror(errno)); + if ((last->cidspill = ast_calloc(1, MAX_CALLERID_SIZE))) { + /* Turn on on hook transfer for 4 seconds */ + x = 4000; + ioctl(last->subs[SUB_REAL].dfd, DAHDI_ONHOOKTRANSFER, &x); + last->cidlen = vmwi_generate(last->cidspill, res, 1, AST_LAW(last)); + last->cidpos = 0; + last->msgstate = res; + last->onhooktime = thispass; + } + found ++; + } + } + last = last->next; + } + } + } + if ((i->subs[SUB_REAL].dfd > -1) && i->sig) { + if (i->radio && !i->owner) + { + res = dahdi_get_event(i->subs[SUB_REAL].dfd); + if (res) + { + if (option_debug) + ast_log(LOG_DEBUG, "Monitor doohicky got event %s on radio channel %d\n", event2str(res), i->channel); + /* Don't hold iflock while handling init events */ + ast_mutex_unlock(&iflock); + handle_init_event(i, res); + ast_mutex_lock(&iflock); + } + i = i->next; + continue; + } + pollres = ast_fdisset(pfds, i->subs[SUB_REAL].dfd, count, &spoint); + if (pollres & POLLIN) { + if (i->owner || i->subs[SUB_REAL].owner) { +#ifdef HAVE_PRI + if (!i->pri) +#endif + ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d) in read...\n", i->subs[SUB_REAL].dfd); + i = i->next; + continue; + } + if (!i->cidspill) { + ast_log(LOG_WARNING, "Whoa.... I'm reading but have no cidspill (%d)...\n", i->subs[SUB_REAL].dfd); + i = i->next; + continue; + } + res = read(i->subs[SUB_REAL].dfd, buf, sizeof(buf)); + if (res > 0) { + /* We read some number of bytes. Write an equal amount of data */ + if (res > i->cidlen - i->cidpos) + res = i->cidlen - i->cidpos; + res2 = write(i->subs[SUB_REAL].dfd, i->cidspill + i->cidpos, res); + if (res2 > 0) { + i->cidpos += res2; + if (i->cidpos >= i->cidlen) { + free(i->cidspill); + i->cidspill = 0; + i->cidpos = 0; + i->cidlen = 0; + } + } else { + ast_log(LOG_WARNING, "Write failed: %s\n", strerror(errno)); + i->msgstate = -1; + } + } else { + ast_log(LOG_WARNING, "Read failed with %d: %s\n", res, strerror(errno)); + } + } + if (pollres & POLLPRI) { + if (i->owner || i->subs[SUB_REAL].owner) { +#ifdef HAVE_PRI + if (!i->pri) +#endif + ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d)...\n", i->subs[SUB_REAL].dfd); + i = i->next; + continue; + } + res = dahdi_get_event(i->subs[SUB_REAL].dfd); + if (option_debug) + ast_log(LOG_DEBUG, "Monitor doohicky got event %s on channel %d\n", event2str(res), i->channel); + /* Don't hold iflock while handling init events */ + ast_mutex_unlock(&iflock); + handle_init_event(i, res); + ast_mutex_lock(&iflock); + } + } + i=i->next; + } + ast_mutex_unlock(&iflock); + } + /* Never reached */ + return NULL; + +} + +static int restart_monitor(void) +{ + pthread_attr_t attr; + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + /* If we're supposed to be stopped -- stay stopped */ + if (monitor_thread == AST_PTHREADT_STOP) + return 0; + ast_mutex_lock(&monlock); + if (monitor_thread == pthread_self()) { + ast_mutex_unlock(&monlock); + ast_log(LOG_WARNING, "Cannot kill myself\n"); + return -1; + } + if (monitor_thread != AST_PTHREADT_NULL) { + /* Wake up the thread */ + pthread_kill(monitor_thread, SIGURG); + } else { + /* Start a new monitor */ + if (ast_pthread_create_background(&monitor_thread, &attr, do_monitor, NULL) < 0) { + ast_mutex_unlock(&monlock); + ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); + pthread_attr_destroy(&attr); + return -1; + } + } + ast_mutex_unlock(&monlock); + pthread_attr_destroy(&attr); + return 0; +} + +#ifdef HAVE_PRI +static int pri_resolve_span(int *span, int channel, int offset, struct dahdi_spaninfo *si) +{ + int x; + int trunkgroup; + /* Get appropriate trunk group if there is one */ + trunkgroup = pris[*span].mastertrunkgroup; + if (trunkgroup) { + /* Select a specific trunk group */ + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].trunkgroup == trunkgroup) { + *span = x; + return 0; + } + } + ast_log(LOG_WARNING, "Channel %d on span %d configured to use nonexistent trunk group %d\n", channel, *span, trunkgroup); + *span = -1; + } else { + if (pris[*span].trunkgroup) { + ast_log(LOG_WARNING, "Unable to use span %d implicitly since it is trunk group %d (please use spanmap)\n", *span, pris[*span].trunkgroup); + *span = -1; + } else if (pris[*span].mastertrunkgroup) { + ast_log(LOG_WARNING, "Unable to use span %d implicitly since it is already part of trunk group %d\n", *span, pris[*span].mastertrunkgroup); + *span = -1; + } else { + if (si->totalchans == 31) { + /* E1 */ + pris[*span].dchannels[0] = 16 + offset; + } else if (si->totalchans == 24) { + /* T1 or J1 */ + pris[*span].dchannels[0] = 24 + offset; + } else if (si->totalchans == 3) { + /* BRI */ + pris[*span].dchannels[0] = 3 + offset; + } else { + ast_log(LOG_WARNING, "Unable to use span %d, since the D-channel cannot be located (unexpected span size of %d channels)\n", *span, si->totalchans); + *span = -1; + return 0; + } + pris[*span].dchanavail[0] |= DCHAN_PROVISIONED; + pris[*span].offset = offset; + pris[*span].span = *span + 1; + } + } + return 0; +} + +static int pri_create_trunkgroup(int trunkgroup, int *channels) +{ + struct dahdi_spaninfo si; + struct dahdi_params p; + int fd; + int span; + int ospan=0; + int x,y; + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].trunkgroup == trunkgroup) { + ast_log(LOG_WARNING, "Trunk group %d already exists on span %d, Primary d-channel %d\n", trunkgroup, x + 1, pris[x].dchannels[0]); + return -1; + } + } + for (y = 0; y < NUM_DCHANS; y++) { + if (!channels[y]) + break; + memset(&si, 0, sizeof(si)); + memset(&p, 0, sizeof(p)); + fd = open(DAHDI_FILE_CHANNEL, O_RDWR); + if (fd < 0) { + ast_log(LOG_WARNING, "Failed to open channel: %s\n", strerror(errno)); + return -1; + } + x = channels[y]; + if (ioctl(fd, DAHDI_SPECIFY, &x)) { + ast_log(LOG_WARNING, "Failed to specify channel %d: %s\n", channels[y], strerror(errno)); + close(fd); + return -1; + } + if (ioctl(fd, DAHDI_GET_PARAMS, &p)) { + ast_log(LOG_WARNING, "Failed to get channel parameters for channel %d: %s\n", channels[y], strerror(errno)); + return -1; + } + if (ioctl(fd, DAHDI_SPANSTAT, &si)) { + ast_log(LOG_WARNING, "Failed go get span information on channel %d (span %d): %s\n", channels[y], p.spanno, strerror(errno)); + close(fd); + return -1; + } + span = p.spanno - 1; + if (pris[span].trunkgroup) { + ast_log(LOG_WARNING, "Span %d is already provisioned for trunk group %d\n", span + 1, pris[span].trunkgroup); + close(fd); + return -1; + } + if (pris[span].pvts[0]) { + ast_log(LOG_WARNING, "Span %d is already provisioned with channels (implicit PRI maybe?)\n", span + 1); + close(fd); + return -1; + } + if (!y) { + pris[span].trunkgroup = trunkgroup; + pris[span].offset = channels[y] - p.chanpos; + ospan = span; + } + pris[ospan].dchannels[y] = channels[y]; + pris[ospan].dchanavail[y] |= DCHAN_PROVISIONED; + pris[span].span = span + 1; + close(fd); + } + return 0; +} + +static int pri_create_spanmap(int span, int trunkgroup, int logicalspan) +{ + if (pris[span].mastertrunkgroup) { + ast_log(LOG_WARNING, "Span %d is already part of trunk group %d, cannot add to trunk group %d\n", span + 1, pris[span].mastertrunkgroup, trunkgroup); + return -1; + } + pris[span].mastertrunkgroup = trunkgroup; + pris[span].prilogicalspan = logicalspan; + return 0; +} + +#endif + +static struct dahdi_pvt *mkintf(int channel, const struct dahdi_chan_conf *conf, struct dahdi_pri *pri, int reloading) +{ + /* Make a dahdi_pvt structure for this interface (or CRV if "pri" is specified) */ + struct dahdi_pvt *tmp = NULL, *tmp2, *prev = NULL; + char fn[80]; +#if 1 + struct dahdi_bufferinfo bi; +#endif + int res; + int span=0; + int here = 0; + int x; + struct dahdi_pvt **wlist; + struct dahdi_pvt **wend; + struct dahdi_params p; + + wlist = &iflist; + wend = &ifend; + +#ifdef HAVE_PRI + if (pri) { + wlist = &pri->crvs; + wend = &pri->crvend; + } +#endif + + tmp2 = *wlist; + prev = NULL; + + while (tmp2) { + if (!tmp2->destroy) { + if (tmp2->channel == channel) { + tmp = tmp2; + here = 1; + break; + } + if (tmp2->channel > channel) { + break; + } + } + prev = tmp2; + tmp2 = tmp2->next; + } + + if (!here && reloading != 1) { + if (!(tmp = ast_calloc(1, sizeof(*tmp)))) { + if (tmp) + free(tmp); + return NULL; + } + ast_mutex_init(&tmp->lock); + ifcount++; + for (x = 0; x < 3; x++) + tmp->subs[x].dfd = -1; + tmp->channel = channel; + } + + if (tmp) { + int chan_sig = conf->chan.sig; + if (!here) { + if ((channel != CHAN_PSEUDO) && !pri) { + int count = 0; + snprintf(fn, sizeof(fn), "%d", channel); + /* Open non-blocking */ + tmp->subs[SUB_REAL].dfd = dahdi_open(fn); + while (tmp->subs[SUB_REAL].dfd < 0 && reloading == 2 && count < 1000) { /* the kernel may not call dahdi_release fast enough for the open flagbit to be cleared in time */ + usleep(1); + tmp->subs[SUB_REAL].dfd = dahdi_open(fn); + count++; + } + /* Allocate a DAHDI structure */ + if (tmp->subs[SUB_REAL].dfd < 0) { + ast_log(LOG_ERROR, "Unable to open channel %d: %s\nhere = %d, tmp->channel = %d, channel = %d\n", channel, strerror(errno), here, tmp->channel, channel); + destroy_dahdi_pvt(&tmp); + return NULL; + } + memset(&p, 0, sizeof(p)); + res = ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &p); + if (res < 0) { + ast_log(LOG_ERROR, "Unable to get parameters: %s\n", strerror(errno)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (p.sigtype != (conf->chan.sig & 0x3ffff)) { + ast_log(LOG_ERROR, "Signalling requested on channel %d is %s but line is in %s signalling\n", channel, sig2str(conf->chan.sig), sig2str(p.sigtype)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + tmp->law = p.curlaw; + tmp->span = p.spanno; + span = p.spanno - 1; + } else { + if (channel == CHAN_PSEUDO) + chan_sig = 0; + else if ((chan_sig != SIG_FXOKS) && (chan_sig != SIG_FXSKS)) { + ast_log(LOG_ERROR, "CRV's must use FXO/FXS Kewl Start (fxo_ks/fxs_ks) signalling only.\n"); + return NULL; + } + } +#ifdef HAVE_PRI + if ((chan_sig == SIG_PRI) || (chan_sig == SIG_GR303FXOKS) || (chan_sig == SIG_GR303FXSKS)) { + int offset; + int myswitchtype; + int matchesdchan; + int x,y; + offset = 0; + if ((chan_sig == SIG_PRI) && ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &offset)) { + ast_log(LOG_ERROR, "Unable to set clear mode on clear channel %d of span %d: %s\n", channel, p.spanno, strerror(errno)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (span >= NUM_SPANS) { + ast_log(LOG_ERROR, "Channel %d does not lie on a span I know of (%d)\n", channel, span); + destroy_dahdi_pvt(&tmp); + return NULL; + } else { + struct dahdi_spaninfo si; + si.spanno = 0; + if (ioctl(tmp->subs[SUB_REAL].dfd,DAHDI_SPANSTAT,&si) == -1) { + ast_log(LOG_ERROR, "Unable to get span status: %s\n", strerror(errno)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + /* Store the logical span first based upon the real span */ + tmp->logicalspan = pris[span].prilogicalspan; + pri_resolve_span(&span, channel, (channel - p.chanpos), &si); + if (span < 0) { + ast_log(LOG_WARNING, "Channel %d: Unable to find locate channel/trunk group!\n", channel); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (chan_sig == SIG_PRI) + myswitchtype = conf->pri.switchtype; + else + myswitchtype = PRI_SWITCH_GR303_TMC; + /* Make sure this isn't a d-channel */ + matchesdchan=0; + for (x = 0; x < NUM_SPANS; x++) { + for (y = 0; y < NUM_DCHANS; y++) { + if (pris[x].dchannels[y] == tmp->channel) { + matchesdchan = 1; + break; + } + } + } + offset = p.chanpos; + if (!matchesdchan) { + if (pris[span].nodetype && (pris[span].nodetype != conf->pri.nodetype)) { + ast_log(LOG_ERROR, "Span %d is already a %s node\n", span + 1, pri_node2str(pris[span].nodetype)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (pris[span].switchtype && (pris[span].switchtype != myswitchtype)) { + ast_log(LOG_ERROR, "Span %d is already a %s switch\n", span + 1, pri_switch2str(pris[span].switchtype)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if ((pris[span].dialplan) && (pris[span].dialplan != conf->pri.dialplan)) { + ast_log(LOG_ERROR, "Span %d is already a %s dialing plan\n", span + 1, dialplan2str(pris[span].dialplan)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (!ast_strlen_zero(pris[span].idledial) && strcmp(pris[span].idledial, conf->pri.idledial)) { + ast_log(LOG_ERROR, "Span %d already has idledial '%s'.\n", span + 1, conf->pri.idledial); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (!ast_strlen_zero(pris[span].idleext) && strcmp(pris[span].idleext, conf->pri.idleext)) { + ast_log(LOG_ERROR, "Span %d already has idleext '%s'.\n", span + 1, conf->pri.idleext); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (pris[span].minunused && (pris[span].minunused != conf->pri.minunused)) { + ast_log(LOG_ERROR, "Span %d already has minunused of %d.\n", span + 1, conf->pri.minunused); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (pris[span].minidle && (pris[span].minidle != conf->pri.minidle)) { + ast_log(LOG_ERROR, "Span %d already has minidle of %d.\n", span + 1, conf->pri.minidle); + destroy_dahdi_pvt(&tmp); + return NULL; + } + if (pris[span].numchans >= MAX_CHANNELS) { + ast_log(LOG_ERROR, "Unable to add channel %d: Too many channels in trunk group %d!\n", channel, + pris[span].trunkgroup); + destroy_dahdi_pvt(&tmp); + return NULL; + } + pris[span].nodetype = conf->pri.nodetype; + pris[span].switchtype = myswitchtype; + pris[span].nsf = conf->pri.nsf; + pris[span].dialplan = conf->pri.dialplan; + pris[span].localdialplan = conf->pri.localdialplan; + pris[span].pvts[pris[span].numchans++] = tmp; + pris[span].minunused = conf->pri.minunused; + pris[span].minidle = conf->pri.minidle; + pris[span].overlapdial = conf->pri.overlapdial; +#ifdef HAVE_PRI_INBANDDISCONNECT + pris[span].inbanddisconnect = conf->pri.inbanddisconnect; +#endif + pris[span].facilityenable = conf->pri.facilityenable; + ast_copy_string(pris[span].idledial, conf->pri.idledial, sizeof(pris[span].idledial)); + ast_copy_string(pris[span].idleext, conf->pri.idleext, sizeof(pris[span].idleext)); + ast_copy_string(pris[span].internationalprefix, conf->pri.internationalprefix, sizeof(pris[span].internationalprefix)); + ast_copy_string(pris[span].nationalprefix, conf->pri.nationalprefix, sizeof(pris[span].nationalprefix)); + ast_copy_string(pris[span].localprefix, conf->pri.localprefix, sizeof(pris[span].localprefix)); + ast_copy_string(pris[span].privateprefix, conf->pri.privateprefix, sizeof(pris[span].privateprefix)); + ast_copy_string(pris[span].unknownprefix, conf->pri.unknownprefix, sizeof(pris[span].unknownprefix)); + pris[span].resetinterval = conf->pri.resetinterval; + + tmp->pri = &pris[span]; + tmp->prioffset = offset; + tmp->call = NULL; + } else { + ast_log(LOG_ERROR, "Channel %d is reserved for D-channel.\n", offset); + destroy_dahdi_pvt(&tmp); + return NULL; + } + } + } else { + tmp->prioffset = 0; + } +#endif + } else { + chan_sig = tmp->sig; + memset(&p, 0, sizeof(p)); + if (tmp->subs[SUB_REAL].dfd > -1) + res = ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &p); + } + /* Adjust starttime on loopstart and kewlstart trunks to reasonable values */ + switch (chan_sig) { + case SIG_FXSKS: + case SIG_FXSLS: + case SIG_EM: + case SIG_EM_E1: + case SIG_EMWINK: + case SIG_FEATD: + case SIG_FEATDMF: + case SIG_FEATDMF_TA: + case SIG_FEATB: + case SIG_E911: + case SIG_SF: + case SIG_SFWINK: + case SIG_FGC_CAMA: + case SIG_FGC_CAMAMF: + case SIG_SF_FEATD: + case SIG_SF_FEATDMF: + case SIG_SF_FEATB: + p.starttime = 250; + break; + } + + if (tmp->radio) { + /* XXX Waiting to hear back from Jim if these should be adjustable XXX */ + p.channo = channel; + p.rxwinktime = 1; + p.rxflashtime = 1; + p.starttime = 1; + p.debouncetime = 5; + } + if (!tmp->radio) { + p.channo = channel; + /* Override timing settings based on config file */ + if (conf->timing.prewinktime >= 0) + p.prewinktime = conf->timing.prewinktime; + if (conf->timing.preflashtime >= 0) + p.preflashtime = conf->timing.preflashtime; + if (conf->timing.winktime >= 0) + p.winktime = conf->timing.winktime; + if (conf->timing.flashtime >= 0) + p.flashtime = conf->timing.flashtime; + if (conf->timing.starttime >= 0) + p.starttime = conf->timing.starttime; + if (conf->timing.rxwinktime >= 0) + p.rxwinktime = conf->timing.rxwinktime; + if (conf->timing.rxflashtime >= 0) + p.rxflashtime = conf->timing.rxflashtime; + if (conf->timing.debouncetime >= 0) + p.debouncetime = conf->timing.debouncetime; + } + + /* dont set parms on a pseudo-channel (or CRV) */ + if (tmp->subs[SUB_REAL].dfd >= 0) + { + res = ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_SET_PARAMS, &p); + if (res < 0) { + ast_log(LOG_ERROR, "Unable to set parameters: %s\n", strerror(errno)); + destroy_dahdi_pvt(&tmp); + return NULL; + } + } +#if 1 + if (!here && (tmp->subs[SUB_REAL].dfd > -1)) { + memset(&bi, 0, sizeof(bi)); + res = ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GET_BUFINFO, &bi); + if (!res) { + bi.txbufpolicy = conf->chan.buf_policy; + bi.rxbufpolicy = conf->chan.buf_policy; + bi.numbufs = conf->chan.buf_no; + res = ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_SET_BUFINFO, &bi); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to set buffer policy on channel %d: %s\n", channel, strerror(errno)); + } + } else + ast_log(LOG_WARNING, "Unable to check buffer policy on channel %d: %s\n", channel, strerror(errno)); + } +#endif + tmp->immediate = conf->chan.immediate; + tmp->transfertobusy = conf->chan.transfertobusy; + tmp->sig = chan_sig; + tmp->outsigmod = conf->chan.outsigmod; + tmp->ringt_base = ringt_base; + tmp->firstradio = 0; + if ((chan_sig == SIG_FXOKS) || (chan_sig == SIG_FXOLS) || (chan_sig == SIG_FXOGS)) + tmp->permcallwaiting = conf->chan.callwaiting; + else + tmp->permcallwaiting = 0; + /* Flag to destroy the channel must be cleared on new mkif. Part of changes for reload to work */ + tmp->destroy = 0; + tmp->drings = drings; + tmp->usedistinctiveringdetection = conf->chan.usedistinctiveringdetection; + tmp->callwaitingcallerid = conf->chan.callwaitingcallerid; + tmp->threewaycalling = conf->chan.threewaycalling; + tmp->adsi = conf->chan.adsi; + tmp->use_smdi = conf->chan.use_smdi; + tmp->permhidecallerid = conf->chan.hidecallerid; + tmp->callreturn = conf->chan.callreturn; + tmp->echocancel = conf->chan.echocancel; + tmp->echotraining = conf->chan.echotraining; + tmp->pulse = conf->chan.pulse; + if (tmp->echocancel) + tmp->echocanbridged = conf->chan.echocanbridged; + else { + if (conf->chan.echocanbridged) + ast_log(LOG_NOTICE, "echocancelwhenbridged requires echocancel to be enabled; ignoring\n"); + tmp->echocanbridged = 0; + } + tmp->busydetect = conf->chan.busydetect; + tmp->busycount = conf->chan.busycount; + tmp->busy_tonelength = conf->chan.busy_tonelength; + tmp->busy_quietlength = conf->chan.busy_quietlength; + tmp->callprogress = conf->chan.callprogress; + tmp->cancallforward = conf->chan.cancallforward; + tmp->dtmfrelax = conf->chan.dtmfrelax; + tmp->callwaiting = tmp->permcallwaiting; + tmp->hidecallerid = tmp->permhidecallerid; + tmp->channel = channel; + tmp->stripmsd = conf->chan.stripmsd; + tmp->use_callerid = conf->chan.use_callerid; + tmp->cid_signalling = conf->chan.cid_signalling; + tmp->cid_start = conf->chan.cid_start; + tmp->dahditrcallerid = conf->chan.dahditrcallerid; + tmp->restrictcid = conf->chan.restrictcid; + tmp->use_callingpres = conf->chan.use_callingpres; + tmp->priindication_oob = conf->chan.priindication_oob; + tmp->priexclusive = conf->chan.priexclusive; + if (tmp->usedistinctiveringdetection) { + if (!tmp->use_callerid) { + ast_log(LOG_NOTICE, "Distinctive Ring detect requires 'usecallerid' be on\n"); + tmp->use_callerid = 1; + } + } + + if (tmp->cid_signalling == CID_SIG_SMDI) { + if (!tmp->use_smdi) { + ast_log(LOG_WARNING, "SMDI callerid requires SMDI to be enabled, enabling...\n"); + tmp->use_smdi = 1; + } + } + if (tmp->use_smdi) { + tmp->smdi_iface = ast_smdi_interface_find(conf->smdi_port); + if (!(tmp->smdi_iface)) { + ast_log(LOG_ERROR, "Invalid SMDI port specfied, disabling SMDI support\n"); + tmp->use_smdi = 0; + } + } + + ast_copy_string(tmp->accountcode, conf->chan.accountcode, sizeof(tmp->accountcode)); + tmp->amaflags = conf->chan.amaflags; + if (!here) { + tmp->confno = -1; + tmp->propconfno = -1; + } + tmp->canpark = conf->chan.canpark; + tmp->transfer = conf->chan.transfer; + ast_copy_string(tmp->defcontext,conf->chan.context,sizeof(tmp->defcontext)); + ast_copy_string(tmp->language, conf->chan.language, sizeof(tmp->language)); + ast_copy_string(tmp->mohinterpret, conf->chan.mohinterpret, sizeof(tmp->mohinterpret)); + ast_copy_string(tmp->mohsuggest, conf->chan.mohsuggest, sizeof(tmp->mohsuggest)); + ast_copy_string(tmp->context, conf->chan.context, sizeof(tmp->context)); + ast_copy_string(tmp->cid_num, conf->chan.cid_num, sizeof(tmp->cid_num)); + tmp->cid_ton = 0; + ast_copy_string(tmp->cid_name, conf->chan.cid_name, sizeof(tmp->cid_name)); + ast_copy_string(tmp->mailbox, conf->chan.mailbox, sizeof(tmp->mailbox)); + tmp->msgstate = -1; + tmp->group = conf->chan.group; + tmp->callgroup = conf->chan.callgroup; + tmp->pickupgroup= conf->chan.pickupgroup; + tmp->rxgain = conf->chan.rxgain; + tmp->txgain = conf->chan.txgain; + tmp->tonezone = conf->chan.tonezone; + tmp->onhooktime = time(NULL); + if (tmp->subs[SUB_REAL].dfd > -1) { + set_actual_gain(tmp->subs[SUB_REAL].dfd, 0, tmp->rxgain, tmp->txgain, tmp->law); + if (tmp->dsp) + ast_dsp_digitmode(tmp->dsp, DSP_DIGITMODE_DTMF | tmp->dtmfrelax); + update_conf(tmp); + if (!here) { + if (chan_sig != SIG_PRI) + /* Hang it up to be sure it's good */ + dahdi_set_hook(tmp->subs[SUB_REAL].dfd, DAHDI_ONHOOK); + } + ioctl(tmp->subs[SUB_REAL].dfd,DAHDI_SETTONEZONE,&tmp->tonezone); +#ifdef HAVE_PRI + /* the dchannel is down so put the channel in alarm */ + if (tmp->pri && !pri_is_up(tmp->pri)) { + tmp->inalarm = 1; + } +#endif + if ((res = get_alarms(tmp)) != DAHDI_ALARM_NONE) { + tmp->inalarm = 1; + handle_alarms(tmp, res); + } else { + /* yes, this looks strange... the unknown_alarm flag is only used to + control whether an 'alarm cleared' message gets generated when we + get an indication that the channel is no longer in alarm status. + however, the channel *could* be in an alarm status that we aren't + aware of (since get_alarms() only reports span alarms, not channel + alarms). setting this flag will cause any potential 'alarm cleared' + message to be suppressed, but if a real alarm occurs before that + happens, this flag will get cleared by it and the situation will + be normal. + */ + tmp->unknown_alarm = 1; + } + } + + tmp->polarityonanswerdelay = conf->chan.polarityonanswerdelay; + tmp->answeronpolarityswitch = conf->chan.answeronpolarityswitch; + tmp->hanguponpolarityswitch = conf->chan.hanguponpolarityswitch; + tmp->sendcalleridafter = conf->chan.sendcalleridafter; + + } + if (tmp && !here) { + /* nothing on the iflist */ + if (!*wlist) { + *wlist = tmp; + tmp->prev = NULL; + tmp->next = NULL; + *wend = tmp; + } else { + /* at least one member on the iflist */ + struct dahdi_pvt *working = *wlist; + + /* check if we maybe have to put it on the begining */ + if (working->channel > tmp->channel) { + tmp->next = *wlist; + tmp->prev = NULL; + (*wlist)->prev = tmp; + *wlist = tmp; + } else { + /* go through all the members and put the member in the right place */ + while (working) { + /* in the middle */ + if (working->next) { + if (working->channel < tmp->channel && working->next->channel > tmp->channel) { + tmp->next = working->next; + tmp->prev = working; + working->next->prev = tmp; + working->next = tmp; + break; + } + } else { + /* the last */ + if (working->channel < tmp->channel) { + working->next = tmp; + tmp->next = NULL; + tmp->prev = working; + *wend = tmp; + break; + } + } + working = working->next; + } + } + } + } + return tmp; +} + +static inline int available(struct dahdi_pvt *p, int channelmatch, ast_group_t groupmatch, int *busy, int *channelmatched, int *groupmatched) +{ + int res; + struct dahdi_params par; + + /* First, check group matching */ + if (groupmatch) { + if ((p->group & groupmatch) != groupmatch) + return 0; + *groupmatched = 1; + } + /* Check to see if we have a channel match */ + if (channelmatch != -1) { + if (p->channel != channelmatch) + return 0; + *channelmatched = 1; + } + /* We're at least busy at this point */ + if (busy) { + if ((p->sig == SIG_FXOKS) || (p->sig == SIG_FXOLS) || (p->sig == SIG_FXOGS)) + *busy = 1; + } + /* If do not disturb, definitely not */ + if (p->dnd) + return 0; + /* If guard time, definitely not */ + if (p->guardtime && (time(NULL) < p->guardtime)) + return 0; + + /* If no owner definitely available */ + if (!p->owner) { +#ifdef HAVE_PRI + /* Trust PRI */ + if (p->pri) { + if (p->resetting || p->call) + return 0; + else + return 1; + } +#endif + if (!(p->radio || (p->oprmode < 0))) + { + if (!p->sig || (p->sig == SIG_FXSLS)) + return 1; + /* Check hook state */ + if (p->subs[SUB_REAL].dfd > -1) + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &par); + else { + /* Assume not off hook on CVRS */ + res = 0; + par.rxisoffhook = 0; + } + if (res) { + ast_log(LOG_WARNING, "Unable to check hook state on channel %d: %s\n", p->channel, strerror(errno)); + } else if ((p->sig == SIG_FXSKS) || (p->sig == SIG_FXSGS)) { + /* When "onhook" that means no battery on the line, and thus + it is out of service..., if it's on a TDM card... If it's a channel + bank, there is no telling... */ + if (par.rxbits > -1) + return 1; + if (par.rxisoffhook) + return 1; + else +#ifdef DAHDI_CHECK_HOOKSTATE + return 0; +#else + return 1; +#endif + } else if (par.rxisoffhook) { + ast_log(LOG_DEBUG, "Channel %d off hook, can't use\n", p->channel); + /* Not available when the other end is off hook */ + return 0; + } + } + return 1; + } + + /* If it's not an FXO, forget about call wait */ + if ((p->sig != SIG_FXOKS) && (p->sig != SIG_FXOLS) && (p->sig != SIG_FXOGS)) + return 0; + + if (!p->callwaiting) { + /* If they don't have call waiting enabled, then for sure they're unavailable at this point */ + return 0; + } + + if (p->subs[SUB_CALLWAIT].dfd > -1) { + /* If there is already a call waiting call, then we can't take a second one */ + return 0; + } + + if ((p->owner->_state != AST_STATE_UP) && + ((p->owner->_state != AST_STATE_RINGING) || p->outgoing)) { + /* If the current call is not up, then don't allow the call */ + return 0; + } + if ((p->subs[SUB_THREEWAY].owner) && (!p->subs[SUB_THREEWAY].inthreeway)) { + /* Can't take a call wait when the three way calling hasn't been merged yet. */ + return 0; + } + /* We're cool */ + return 1; +} + +static struct dahdi_pvt *chandup(struct dahdi_pvt *src) +{ + struct dahdi_pvt *p; + struct dahdi_bufferinfo bi; + int res; + + if ((p = ast_malloc(sizeof(*p)))) { + memcpy(p, src, sizeof(struct dahdi_pvt)); + ast_mutex_init(&p->lock); + p->subs[SUB_REAL].dfd = dahdi_open(DAHDI_FILE_PSEUDO); + /* Allocate a DAHDI structure */ + if (p->subs[SUB_REAL].dfd < 0) { + ast_log(LOG_ERROR, "Unable to dup channel: %s\n", strerror(errno)); + destroy_dahdi_pvt(&p); + return NULL; + } + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_GET_BUFINFO, &bi); + if (!res) { + bi.txbufpolicy = p->buf_policy; + bi.rxbufpolicy = p->buf_policy; + bi.numbufs = p->buf_no; + res = ioctl(p->subs[SUB_REAL].dfd, DAHDI_SET_BUFINFO, &bi); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to set buffer policy on dup channel: %s\n", strerror(errno)); + } + } else + ast_log(LOG_WARNING, "Unable to check buffer policy on dup channel: %s\n", strerror(errno)); + } + p->destroy = 1; + p->next = iflist; + p->prev = NULL; + iflist = p; + if (iflist->next) + iflist->next->prev = p; + return p; +} + + +#ifdef HAVE_PRI +static int pri_find_empty_chan(struct dahdi_pri *pri, int backwards) +{ + int x; + if (backwards) + x = pri->numchans; + else + x = 0; + for (;;) { + if (backwards && (x < 0)) + break; + if (!backwards && (x >= pri->numchans)) + break; + if (pri->pvts[x] && !pri->pvts[x]->inalarm && !pri->pvts[x]->owner) { + ast_log(LOG_DEBUG, "Found empty available channel %d/%d\n", + pri->pvts[x]->logicalspan, pri->pvts[x]->prioffset); + return x; + } + if (backwards) + x--; + else + x++; + } + return -1; +} +#endif + +static struct ast_channel *dahdi_request(const char *type, int format, void *data, int *cause) +{ + ast_group_t groupmatch = 0; + int channelmatch = -1; + int roundrobin = 0; + int callwait = 0; + int busy = 0; + struct dahdi_pvt *p; + struct ast_channel *tmp = NULL; + char *dest=NULL; + int x; + char *s; + char opt=0; + int res=0, y=0; + int backwards = 0; +#ifdef HAVE_PRI + int crv; + int bearer = -1; + int trunkgroup; + struct dahdi_pri *pri=NULL; +#endif + struct dahdi_pvt *exit, *start, *end; + ast_mutex_t *lock; + int channelmatched = 0; + int groupmatched = 0; + + /* Assume we're locking the iflock */ + lock = &iflock; + start = iflist; + end = ifend; + if (data) { + dest = ast_strdupa((char *)data); + } else { + ast_log(LOG_WARNING, "Channel requested with no data\n"); + return NULL; + } + if (toupper(dest[0]) == 'G' || toupper(dest[0])=='R') { + /* Retrieve the group number */ + char *stringp=NULL; + stringp=dest + 1; + s = strsep(&stringp, "/"); + if ((res = sscanf(s, "%d%c%d", &x, &opt, &y)) < 1) { + ast_log(LOG_WARNING, "Unable to determine group for data %s\n", (char *)data); + return NULL; + } + groupmatch = ((ast_group_t) 1 << x); + if (toupper(dest[0]) == 'G') { + if (dest[0] == 'G') { + backwards = 1; + p = ifend; + } else + p = iflist; + } else { + if (dest[0] == 'R') { + backwards = 1; + p = round_robin[x]?round_robin[x]->prev:ifend; + if (!p) + p = ifend; + } else { + p = round_robin[x]?round_robin[x]->next:iflist; + if (!p) + p = iflist; + } + roundrobin = 1; + } + } else { + char *stringp=NULL; + stringp=dest; + s = strsep(&stringp, "/"); + p = iflist; + if (!strcasecmp(s, "pseudo")) { + /* Special case for pseudo */ + x = CHAN_PSEUDO; + channelmatch = x; + } +#ifdef HAVE_PRI + else if ((res = sscanf(s, "%d:%d%c%d", &trunkgroup, &crv, &opt, &y)) > 1) { + if ((trunkgroup < 1) || (crv < 1)) { + ast_log(LOG_WARNING, "Unable to determine trunk group and CRV for data %s\n", (char *)data); + return NULL; + } + res--; + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].trunkgroup == trunkgroup) { + pri = pris + x; + lock = &pri->lock; + start = pri->crvs; + end = pri->crvend; + break; + } + } + if (!pri) { + ast_log(LOG_WARNING, "Unable to find trunk group %d\n", trunkgroup); + return NULL; + } + channelmatch = crv; + p = pris[x].crvs; + } +#endif + else if ((res = sscanf(s, "%d%c%d", &x, &opt, &y)) < 1) { + ast_log(LOG_WARNING, "Unable to determine channel for data %s\n", (char *)data); + return NULL; + } else { + channelmatch = x; + } + } + /* Search for an unowned channel */ + ast_mutex_lock(lock); + exit = p; + while (p && !tmp) { + if (roundrobin) + round_robin[x] = p; +#if 0 + ast_verbose("name = %s, %d, %d, %d\n",p->owner ? p->owner->name : "<none>", p->channel, channelmatch, groupmatch); +#endif + + if (p && available(p, channelmatch, groupmatch, &busy, &channelmatched, &groupmatched)) { + if (option_debug) + ast_log(LOG_DEBUG, "Using channel %d\n", p->channel); + if (p->inalarm) + goto next; + + callwait = (p->owner != NULL); +#ifdef HAVE_PRI + if (pri && (p->subs[SUB_REAL].dfd < 0)) { + if (p->sig != SIG_FXSKS) { + /* Gotta find an actual channel to use for this + CRV if this isn't a callwait */ + bearer = pri_find_empty_chan(pri, 0); + if (bearer < 0) { + ast_log(LOG_NOTICE, "Out of bearer channels on span %d for call to CRV %d:%d\n", pri->span, trunkgroup, crv); + p = NULL; + break; + } + pri_assign_bearer(p, pri, pri->pvts[bearer]); + } else { + if (alloc_sub(p, 0)) { + ast_log(LOG_NOTICE, "Failed to allocate place holder pseudo channel!\n"); + p = NULL; + break; + } else + ast_log(LOG_DEBUG, "Allocated placeholder pseudo channel\n"); + p->pri = pri; + } + } +#endif + if (p->channel == CHAN_PSEUDO) { + p = chandup(p); + if (!p) { + break; + } + } + if (p->owner) { + if (alloc_sub(p, SUB_CALLWAIT)) { + p = NULL; + break; + } + } + p->outgoing = 1; + tmp = dahdi_new(p, AST_STATE_RESERVED, 0, p->owner ? SUB_CALLWAIT : SUB_REAL, 0, 0); +#ifdef HAVE_PRI + if (p->bearer) { + /* Log owner to bearer channel, too */ + p->bearer->owner = tmp; + } +#endif + /* Make special notes */ + if (res > 1) { + if (opt == 'c') { + /* Confirm answer */ + p->confirmanswer = 1; + } else if (opt == 'r') { + /* Distinctive ring */ + if (res < 3) + ast_log(LOG_WARNING, "Distinctive ring missing identifier in '%s'\n", (char *)data); + else + p->distinctivering = y; + } else if (opt == 'd') { + /* If this is an ISDN call, make it digital */ + p->digital = 1; + if (tmp) + tmp->transfercapability = AST_TRANS_CAP_DIGITAL; + } else { + ast_log(LOG_WARNING, "Unknown option '%c' in '%s'\n", opt, (char *)data); + } + } + /* Note if the call is a call waiting call */ + if (tmp && callwait) + tmp->cdrflags |= AST_CDR_CALLWAIT; + break; + } +next: + if (backwards) { + p = p->prev; + if (!p) + p = end; + } else { + p = p->next; + if (!p) + p = start; + } + /* stop when you roll to the one that we started from */ + if (p == exit) + break; + } + ast_mutex_unlock(lock); + restart_monitor(); + if (callwait) + *cause = AST_CAUSE_BUSY; + else if (!tmp) { + if (channelmatched) { + if (busy) + *cause = AST_CAUSE_BUSY; + } else if (groupmatched) { + *cause = AST_CAUSE_CONGESTION; + } + } + + return tmp; +} + + +#ifdef HAVE_PRI +static struct dahdi_pvt *pri_find_crv(struct dahdi_pri *pri, int crv) +{ + struct dahdi_pvt *p; + p = pri->crvs; + while (p) { + if (p->channel == crv) + return p; + p = p->next; + } + return NULL; +} + + +static int pri_find_principle(struct dahdi_pri *pri, int channel) +{ + int x; + int span = PRI_SPAN(channel); + int spanfd; + struct dahdi_params param; + int principle = -1; + int explicit = PRI_EXPLICIT(channel); + channel = PRI_CHANNEL(channel); + + if (!explicit) { + spanfd = pri_active_dchan_fd(pri); + if (ioctl(spanfd, DAHDI_GET_PARAMS, ¶m)) + return -1; + span = pris[param.spanno - 1].prilogicalspan; + } + + for (x = 0; x < pri->numchans; x++) { + if (pri->pvts[x] && (pri->pvts[x]->prioffset == channel) && (pri->pvts[x]->logicalspan == span)) { + principle = x; + break; + } + } + + return principle; +} + +static int pri_fixup_principle(struct dahdi_pri *pri, int principle, q931_call *c) +{ + int x; + struct dahdi_pvt *crv; + if (!c) { + if (principle < 0) + return -1; + return principle; + } + if ((principle > -1) && + (principle < pri->numchans) && + (pri->pvts[principle]) && + (pri->pvts[principle]->call == c)) + return principle; + /* First, check for other bearers */ + for (x = 0; x < pri->numchans; x++) { + if (!pri->pvts[x]) + continue; + if (pri->pvts[x]->call == c) { + /* Found our call */ + if (principle != x) { + struct dahdi_pvt *new = pri->pvts[principle], *old = pri->pvts[x]; + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Moving call from channel %d to channel %d\n", + old->channel, new->channel); + if (new->owner) { + ast_log(LOG_WARNING, "Can't fix up channel from %d to %d because %d is already in use\n", + old->channel, new->channel, new->channel); + return -1; + } + /* Fix it all up now */ + new->owner = old->owner; + old->owner = NULL; + if (new->owner) { + ast_string_field_build(new->owner, name, "%s/%d:%d-%d", dahdi_chan_name, pri->trunkgroup, new->channel, 1); + new->owner->tech_pvt = new; + new->owner->fds[0] = new->subs[SUB_REAL].dfd; + new->subs[SUB_REAL].owner = old->subs[SUB_REAL].owner; + old->subs[SUB_REAL].owner = NULL; + } else + ast_log(LOG_WARNING, "Whoa, there's no owner, and we're having to fix up channel %d to channel %d\n", old->channel, new->channel); + new->call = old->call; + old->call = NULL; + + /* Copy any DSP that may be present */ + new->dsp = old->dsp; + new->dsp_features = old->dsp_features; + old->dsp = NULL; + old->dsp_features = 0; + } + return principle; + } + } + /* Now check for a CRV with no bearer */ + crv = pri->crvs; + while (crv) { + if (crv->call == c) { + /* This is our match... Perform some basic checks */ + if (crv->bearer) + ast_log(LOG_WARNING, "Trying to fix up call which already has a bearer which isn't the one we think it is\n"); + else if (pri->pvts[principle]->owner) + ast_log(LOG_WARNING, "Tring to fix up a call to a bearer which already has an owner!\n"); + else { + /* Looks good. Drop the pseudo channel now, clear up the assignment, and + wakeup the potential sleeper */ + dahdi_close_sub(crv, SUB_REAL); + pri->pvts[principle]->call = crv->call; + pri_assign_bearer(crv, pri, pri->pvts[principle]); + ast_log(LOG_DEBUG, "Assigning bearer %d/%d to CRV %d:%d\n", + pri->pvts[principle]->logicalspan, pri->pvts[principle]->prioffset, + pri->trunkgroup, crv->channel); + wakeup_sub(crv, SUB_REAL, pri); + } + return principle; + } + crv = crv->next; + } + ast_log(LOG_WARNING, "Call specified, but not found?\n"); + return -1; +} + +static void *do_idle_thread(void *vchan) +{ + struct ast_channel *chan = vchan; + struct dahdi_pvt *pvt = chan->tech_pvt; + struct ast_frame *f; + char ex[80]; + /* Wait up to 30 seconds for an answer */ + int newms, ms = 30000; + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Initiating idle call on channel %s\n", chan->name); + snprintf(ex, sizeof(ex), "%d/%s", pvt->channel, pvt->pri->idledial); + if (ast_call(chan, ex, 0)) { + ast_log(LOG_WARNING, "Idle dial failed on '%s' to '%s'\n", chan->name, ex); + ast_hangup(chan); + return NULL; + } + while ((newms = ast_waitfor(chan, ms)) > 0) { + f = ast_read(chan); + if (!f) { + /* Got hangup */ + break; + } + if (f->frametype == AST_FRAME_CONTROL) { + switch (f->subclass) { + case AST_CONTROL_ANSWER: + /* Launch the PBX */ + ast_copy_string(chan->exten, pvt->pri->idleext, sizeof(chan->exten)); + ast_copy_string(chan->context, pvt->pri->idlecontext, sizeof(chan->context)); + chan->priority = 1; + if (option_verbose > 3) + ast_verbose(VERBOSE_PREFIX_3 "Idle channel '%s' answered, sending to %s@%s\n", chan->name, chan->exten, chan->context); + ast_pbx_run(chan); + /* It's already hungup, return immediately */ + return NULL; + case AST_CONTROL_BUSY: + if (option_verbose > 3) + ast_verbose(VERBOSE_PREFIX_3 "Idle channel '%s' busy, waiting...\n", chan->name); + break; + case AST_CONTROL_CONGESTION: + if (option_verbose > 3) + ast_verbose(VERBOSE_PREFIX_3 "Idle channel '%s' congested, waiting...\n", chan->name); + break; + }; + } + ast_frfree(f); + ms = newms; + } + /* Hangup the channel since nothing happend */ + ast_hangup(chan); + return NULL; +} + +#ifndef PRI_RESTART +#error "Upgrade your libpri" +#endif +static void dahdi_pri_message(struct pri *pri, char *s) +{ + int x, y; + int dchan = -1, span = -1; + int dchancount = 0; + + if (pri) { + for (x = 0; x < NUM_SPANS; x++) { + for (y = 0; y < NUM_DCHANS; y++) { + if (pris[x].dchans[y]) + dchancount++; + + if (pris[x].dchans[y] == pri) + dchan = y; + } + if (dchan >= 0) { + span = x; + break; + } + dchancount = 0; + } + if ((dchan >= 0) && (span >= 0)) { + if (dchancount > 1) + ast_verbose("[Span %d D-Channel %d]%s", span, dchan, s); + else + ast_verbose("%s", s); + } else + ast_log(LOG_ERROR, "PRI debug error: could not find pri associated it with debug message output\n"); + } else + ast_verbose("%s", s); + + ast_mutex_lock(&pridebugfdlock); + + if (pridebugfd >= 0) { + if (write(pridebugfd, s, strlen(s)) < 0) { + ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno)); + } + } + + ast_mutex_unlock(&pridebugfdlock); +} + +static void dahdi_pri_error(struct pri *pri, char *s) +{ + int x, y; + int dchan = -1, span = -1; + int dchancount = 0; + + if (pri) { + for (x = 0; x < NUM_SPANS; x++) { + for (y = 0; y < NUM_DCHANS; y++) { + if (pris[x].dchans[y]) + dchancount++; + + if (pris[x].dchans[y] == pri) + dchan = y; + } + if (dchan >= 0) { + span = x; + break; + } + dchancount = 0; + } + if ((dchan >= 0) && (span >= 0)) { + if (dchancount > 1) + ast_log(LOG_ERROR, "[Span %d D-Channel %d] PRI: %s", span, dchan, s); + else + ast_log(LOG_ERROR, "%s", s); + } else + ast_log(LOG_ERROR, "PRI debug error: could not find pri associated it with debug message output\n"); + } else + ast_log(LOG_ERROR, "%s", s); + + ast_mutex_lock(&pridebugfdlock); + + if (pridebugfd >= 0) { + if (write(pridebugfd, s, strlen(s)) < 0) { + ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno)); + } + } + + ast_mutex_unlock(&pridebugfdlock); +} + +static int pri_check_restart(struct dahdi_pri *pri) +{ + do { + pri->resetpos++; + } while ((pri->resetpos < pri->numchans) && + (!pri->pvts[pri->resetpos] || + pri->pvts[pri->resetpos]->call || + pri->pvts[pri->resetpos]->resetting)); + if (pri->resetpos < pri->numchans) { + /* Mark the channel as resetting and restart it */ + pri->pvts[pri->resetpos]->resetting = 1; + pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[pri->resetpos])); + } else { + pri->resetting = 0; + time(&pri->lastreset); + } + return 0; +} + +static int pri_hangup_all(struct dahdi_pvt *p, struct dahdi_pri *pri) +{ + int x; + int redo; + ast_mutex_unlock(&pri->lock); + ast_mutex_lock(&p->lock); + do { + redo = 0; + for (x = 0; x < 3; x++) { + while (p->subs[x].owner && ast_mutex_trylock(&p->subs[x].owner->lock)) { + redo++; + DEADLOCK_AVOIDANCE(&p->lock); + } + if (p->subs[x].owner) { + ast_queue_hangup(p->subs[x].owner); + ast_mutex_unlock(&p->subs[x].owner->lock); + } + } + } while (redo); + ast_mutex_unlock(&p->lock); + ast_mutex_lock(&pri->lock); + return 0; +} + +static char * redirectingreason2str(int redirectingreason) +{ + switch (redirectingreason) { + case 0: + return "UNKNOWN"; + case 1: + return "BUSY"; + case 2: + return "NO_REPLY"; + case 0xF: + return "UNCONDITIONAL"; + default: + return "NOREDIRECT"; + } +} + +static void apply_plan_to_number(char *buf, size_t size, const struct dahdi_pri *pri, const char *number, const int plan) +{ + switch (plan) { + case PRI_INTERNATIONAL_ISDN: /* Q.931 dialplan == 0x11 international dialplan => prepend international prefix digits */ + snprintf(buf, size, "%s%s", pri->internationalprefix, number); + break; + case PRI_NATIONAL_ISDN: /* Q.931 dialplan == 0x21 national dialplan => prepend national prefix digits */ + snprintf(buf, size, "%s%s", pri->nationalprefix, number); + break; + case PRI_LOCAL_ISDN: /* Q.931 dialplan == 0x41 local dialplan => prepend local prefix digits */ + snprintf(buf, size, "%s%s", pri->localprefix, number); + break; + case PRI_PRIVATE: /* Q.931 dialplan == 0x49 private dialplan => prepend private prefix digits */ + snprintf(buf, size, "%s%s", pri->privateprefix, number); + break; + case PRI_UNKNOWN: /* Q.931 dialplan == 0x00 unknown dialplan => prepend unknown prefix digits */ + snprintf(buf, size, "%s%s", pri->unknownprefix, number); + break; + default: /* other Q.931 dialplan => don't twiddle with callingnum */ + snprintf(buf, size, "%s", number); + break; + } +} + +static int dahdi_setlaw(int dfd, int law) +{ + int res; + res = ioctl(dfd, DAHDI_SETLAW, &law); + if (res) + return res; + return 0; +} + +static void *pri_dchannel(void *vpri) +{ + struct dahdi_pri *pri = vpri; + pri_event *e; + struct pollfd fds[NUM_DCHANS]; + int res; + int chanpos = 0; + int x; + int haveidles; + int activeidles; + int nextidle = -1; + struct ast_channel *c; + struct timeval tv, lowest, *next; + struct timeval lastidle = { 0, 0 }; + int doidling=0; + char *cc; + char idlen[80]; + struct ast_channel *idle; + pthread_t p; + time_t t; + int i, which=-1; + int numdchans; + int cause=0; + struct dahdi_pvt *crv; + pthread_t threadid; + pthread_attr_t attr; + char ani2str[6]; + char plancallingnum[256]; + char plancallingani[256]; + char calledtonstr[10]; + + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); + + gettimeofday(&lastidle, NULL); + if (!ast_strlen_zero(pri->idledial) && !ast_strlen_zero(pri->idleext)) { + /* Need to do idle dialing, check to be sure though */ + cc = strchr(pri->idleext, '@'); + if (cc) { + *cc = '\0'; + cc++; + ast_copy_string(pri->idlecontext, cc, sizeof(pri->idlecontext)); +#if 0 + /* Extensions may not be loaded yet */ + if (!ast_exists_extension(NULL, pri->idlecontext, pri->idleext, 1, NULL)) + ast_log(LOG_WARNING, "Extension '%s @ %s' does not exist\n", pri->idleext, pri->idlecontext); + else +#endif + doidling = 1; + } else + ast_log(LOG_WARNING, "Idle dial string '%s' lacks '@context'\n", pri->idleext); + } + for (;;) { + for (i = 0; i < NUM_DCHANS; i++) { + if (!pri->dchannels[i]) + break; + fds[i].fd = pri->fds[i]; + fds[i].events = POLLIN | POLLPRI; + fds[i].revents = 0; + } + numdchans = i; + time(&t); + ast_mutex_lock(&pri->lock); + if (pri->switchtype != PRI_SWITCH_GR303_TMC && (pri->resetinterval > 0)) { + if (pri->resetting && pri_is_up(pri)) { + if (pri->resetpos < 0) + pri_check_restart(pri); + } else { + if (!pri->resetting && (t - pri->lastreset) >= pri->resetinterval) { + pri->resetting = 1; + pri->resetpos = -1; + } + } + } + /* Look for any idle channels if appropriate */ + if (doidling && pri_is_up(pri)) { + nextidle = -1; + haveidles = 0; + activeidles = 0; + for (x = pri->numchans; x >= 0; x--) { + if (pri->pvts[x] && !pri->pvts[x]->owner && + !pri->pvts[x]->call) { + if (haveidles < pri->minunused) { + haveidles++; + } else if (!pri->pvts[x]->resetting) { + nextidle = x; + break; + } + } else if (pri->pvts[x] && pri->pvts[x]->owner && pri->pvts[x]->isidlecall) + activeidles++; + } + if (nextidle > -1) { + if (ast_tvdiff_ms(ast_tvnow(), lastidle) > 1000) { + /* Don't create a new idle call more than once per second */ + snprintf(idlen, sizeof(idlen), "%d/%s", pri->pvts[nextidle]->channel, pri->idledial); + idle = dahdi_request(dahdi_chan_name, AST_FORMAT_ULAW, idlen, &cause); + if (idle) { + pri->pvts[nextidle]->isidlecall = 1; + if (ast_pthread_create_background(&p, NULL, do_idle_thread, idle)) { + ast_log(LOG_WARNING, "Unable to start new thread for idle channel '%s'\n", idle->name); + dahdi_hangup(idle); + } + } else + ast_log(LOG_WARNING, "Unable to request channel 'DAHDI/%s' for idle call\n", idlen); + gettimeofday(&lastidle, NULL); + } + } else if ((haveidles < pri->minunused) && + (activeidles > pri->minidle)) { + /* Mark something for hangup if there is something + that can be hungup */ + for (x = pri->numchans; x >= 0; x--) { + /* find a candidate channel */ + if (pri->pvts[x] && pri->pvts[x]->owner && pri->pvts[x]->isidlecall) { + pri->pvts[x]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + haveidles++; + /* Stop if we have enough idle channels or + can't spare any more active idle ones */ + if ((haveidles >= pri->minunused) || + (activeidles <= pri->minidle)) + break; + } + } + } + } + /* Start with reasonable max */ + lowest = ast_tv(60, 0); + for (i = 0; i < NUM_DCHANS; i++) { + /* Find lowest available d-channel */ + if (!pri->dchannels[i]) + break; + if ((next = pri_schedule_next(pri->dchans[i]))) { + /* We need relative time here */ + tv = ast_tvsub(*next, ast_tvnow()); + if (tv.tv_sec < 0) { + tv = ast_tv(0,0); + } + if (doidling || pri->resetting) { + if (tv.tv_sec > 1) { + tv = ast_tv(1, 0); + } + } else { + if (tv.tv_sec > 60) { + tv = ast_tv(60, 0); + } + } + } else if (doidling || pri->resetting) { + /* Make sure we stop at least once per second if we're + monitoring idle channels */ + tv = ast_tv(1,0); + } else { + /* Don't poll for more than 60 seconds */ + tv = ast_tv(60, 0); + } + if (!i || ast_tvcmp(tv, lowest) < 0) { + lowest = tv; + } + } + ast_mutex_unlock(&pri->lock); + + pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); + pthread_testcancel(); + e = NULL; + res = poll(fds, numdchans, lowest.tv_sec * 1000 + lowest.tv_usec / 1000); + pthread_testcancel(); + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); + + ast_mutex_lock(&pri->lock); + if (!res) { + for (which = 0; which < NUM_DCHANS; which++) { + if (!pri->dchans[which]) + break; + /* Just a timeout, run the scheduler */ + e = pri_schedule_run(pri->dchans[which]); + if (e) + break; + } + } else if (res > -1) { + for (which = 0; which < NUM_DCHANS; which++) { + if (!pri->dchans[which]) + break; + if (fds[which].revents & POLLPRI) { + /* Check for an event */ + x = 0; + res = ioctl(pri->fds[which], DAHDI_GETEVENT, &x); + if (x) + ast_log(LOG_NOTICE, "PRI got event: %s (%d) on %s D-channel of span %d\n", event2str(x), x, pri_order(which), pri->span); + /* Keep track of alarm state */ + if (x == DAHDI_EVENT_ALARM) { + pri->dchanavail[which] &= ~(DCHAN_NOTINALARM | DCHAN_UP); + pri_find_dchan(pri); + } else if (x == DAHDI_EVENT_NOALARM) { + pri->dchanavail[which] |= DCHAN_NOTINALARM; + pri_restart(pri->dchans[which]); + } + + if (option_debug) + ast_log(LOG_DEBUG, "Got event %s (%d) on D-channel for span %d\n", event2str(x), x, pri->span); + } else if (fds[which].revents & POLLIN) { + e = pri_check_event(pri->dchans[which]); + } + if (e) + break; + } + } else if (errno != EINTR) + ast_log(LOG_WARNING, "pri_event returned error %d (%s)\n", errno, strerror(errno)); + + if (e) { + if (pri->debug) + pri_dump_event(pri->dchans[which], e); + + if (e->e != PRI_EVENT_DCHAN_DOWN) { + if (!(pri->dchanavail[which] & DCHAN_UP)) { + if (option_verbose > 1) + ast_verbose(VERBOSE_PREFIX_2 "%s D-Channel on span %d up\n", pri_order(which), pri->span); + } + pri->dchanavail[which] |= DCHAN_UP; + } else { + if (pri->dchanavail[which] & DCHAN_UP) { + if (option_verbose > 1) + ast_verbose(VERBOSE_PREFIX_2 "%s D-Channel on span %d down\n", pri_order(which), pri->span); + } + pri->dchanavail[which] &= ~DCHAN_UP; + } + + if ((e->e != PRI_EVENT_DCHAN_UP) && (e->e != PRI_EVENT_DCHAN_DOWN) && (pri->pri != pri->dchans[which])) + /* Must be an NFAS group that has the secondary dchan active */ + pri->pri = pri->dchans[which]; + + switch (e->e) { + case PRI_EVENT_DCHAN_UP: + if (!pri->pri) pri_find_dchan(pri); + + /* Note presense of D-channel */ + time(&pri->lastreset); + + /* Restart in 5 seconds */ + if (pri->resetinterval > -1) { + pri->lastreset -= pri->resetinterval; + pri->lastreset += 5; + } + pri->resetting = 0; + /* Take the channels from inalarm condition */ + for (i = 0; i < pri->numchans; i++) + if (pri->pvts[i]) { + pri->pvts[i]->inalarm = 0; + } + break; + case PRI_EVENT_DCHAN_DOWN: + pri_find_dchan(pri); + if (!pri_is_up(pri)) { + pri->resetting = 0; + /* Hangup active channels and put them in alarm mode */ + for (i = 0; i < pri->numchans; i++) { + struct dahdi_pvt *p = pri->pvts[i]; + if (p) { + if (!p->pri || !p->pri->pri || pri_get_timer(p->pri->pri, PRI_TIMER_T309) < 0) { + /* T309 is not enabled : hangup calls when alarm occurs */ + if (p->call) { + if (p->pri && p->pri->pri) { + pri_hangup(p->pri->pri, p->call, -1); + pri_destroycall(p->pri->pri, p->call); + p->call = NULL; + } else + ast_log(LOG_WARNING, "The PRI Call have not been destroyed\n"); + } + if (p->realcall) { + pri_hangup_all(p->realcall, pri); + } else if (p->owner) + p->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + p->inalarm = 1; + } + } + } + break; + case PRI_EVENT_RESTART: + if (e->restart.channel > -1) { + chanpos = pri_find_principle(pri, e->restart.channel); + if (chanpos < 0) + ast_log(LOG_WARNING, "Restart requested on odd/unavailable channel number %d/%d on span %d\n", + PRI_SPAN(e->restart.channel), PRI_CHANNEL(e->restart.channel), pri->span); + else { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "B-channel %d/%d restarted on span %d\n", + PRI_SPAN(e->restart.channel), PRI_CHANNEL(e->restart.channel), pri->span); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (pri->pvts[chanpos]->call) { + pri_destroycall(pri->pri, pri->pvts[chanpos]->call); + pri->pvts[chanpos]->call = NULL; + } + /* Force soft hangup if appropriate */ + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[chanpos]->owner) + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } else { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_2 "Restart on requested on entire span %d\n", pri->span); + for (x = 0; x < pri->numchans; x++) + if (pri->pvts[x]) { + ast_mutex_lock(&pri->pvts[x]->lock); + if (pri->pvts[x]->call) { + pri_destroycall(pri->pri, pri->pvts[x]->call); + pri->pvts[x]->call = NULL; + } + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[x]->owner) + pri->pvts[x]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + ast_mutex_unlock(&pri->pvts[x]->lock); + } + } + break; + case PRI_EVENT_KEYPAD_DIGIT: + chanpos = pri_find_principle(pri, e->digit.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "KEYPAD_DIGITs received on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->digit.channel), PRI_CHANNEL(e->digit.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->digit.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + /* queue DTMF frame if the PBX for this call was already started (we're forwarding KEYPAD_DIGITs further on */ + if (pri->overlapdial && pri->pvts[chanpos]->call==e->digit.call && pri->pvts[chanpos]->owner) { + /* how to do that */ + int digitlen = strlen(e->digit.digits); + char digit; + int i; + for (i = 0; i < digitlen; i++) { + digit = e->digit.digits[i]; + { + struct ast_frame f = { AST_FRAME_DTMF, digit, }; + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); + } + } + } + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + + case PRI_EVENT_INFO_RECEIVED: + chanpos = pri_find_principle(pri, e->ring.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "INFO received on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->ring.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + /* queue DTMF frame if the PBX for this call was already started (we're forwarding INFORMATION further on */ + if (pri->overlapdial && pri->pvts[chanpos]->call==e->ring.call && pri->pvts[chanpos]->owner) { + /* how to do that */ + int digitlen = strlen(e->ring.callednum); + char digit; + int i; + for (i = 0; i < digitlen; i++) { + digit = e->ring.callednum[i]; + { + struct ast_frame f = { AST_FRAME_DTMF, digit, }; + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); + } + } + } + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_RING: + crv = NULL; + if (e->ring.channel == -1) + chanpos = pri_find_empty_chan(pri, 1); + else + chanpos = pri_find_principle(pri, e->ring.channel); + /* if no channel specified find one empty */ + if (chanpos < 0) { + ast_log(LOG_WARNING, "Ring requested on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span); + } else { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (pri->pvts[chanpos]->owner) { + if (pri->pvts[chanpos]->call == e->ring.call) { + ast_log(LOG_WARNING, "Duplicate setup requested on channel %d/%d already in use on span %d\n", + PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span); + break; + } else { + /* This is where we handle initial glare */ + ast_log(LOG_DEBUG, "Ring requested on channel %d/%d already in use or previously requested on span %d. Attempting to renegotiating channel.\n", + PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + chanpos = -1; + } + } + if (chanpos > -1) + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + if ((chanpos < 0) && (e->ring.flexible)) + chanpos = pri_find_empty_chan(pri, 1); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (pri->switchtype == PRI_SWITCH_GR303_TMC) { + /* Should be safe to lock CRV AFAIK while bearer is still locked */ + crv = pri_find_crv(pri, pri_get_crv(pri->pri, e->ring.call, NULL)); + if (crv) + ast_mutex_lock(&crv->lock); + if (!crv || crv->owner) { + pri->pvts[chanpos]->call = NULL; + if (crv) { + if (crv->owner) + crv->owner->_softhangup |= AST_SOFTHANGUP_DEV; + ast_log(LOG_WARNING, "Call received for busy CRV %d on span %d\n", pri_get_crv(pri->pri, e->ring.call, NULL), pri->span); + } else + ast_log(LOG_NOTICE, "Call received for unconfigured CRV %d on span %d\n", pri_get_crv(pri->pri, e->ring.call, NULL), pri->span); + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_INVALID_CALL_REFERENCE); + if (crv) + ast_mutex_unlock(&crv->lock); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + break; + } + } + pri->pvts[chanpos]->call = e->ring.call; + apply_plan_to_number(plancallingnum, sizeof(plancallingnum), pri, e->ring.callingnum, e->ring.callingplan); + if (pri->pvts[chanpos]->use_callerid) { + ast_shrink_phone_number(plancallingnum); + ast_copy_string(pri->pvts[chanpos]->cid_num, plancallingnum, sizeof(pri->pvts[chanpos]->cid_num)); +#ifdef PRI_ANI + if (!ast_strlen_zero(e->ring.callingani)) { + apply_plan_to_number(plancallingani, sizeof(plancallingani), pri, e->ring.callingani, e->ring.callingplanani); + ast_shrink_phone_number(plancallingani); + ast_copy_string(pri->pvts[chanpos]->cid_ani, plancallingani, sizeof(pri->pvts[chanpos]->cid_ani)); + } else { + pri->pvts[chanpos]->cid_ani[0] = '\0'; + } +#endif + ast_copy_string(pri->pvts[chanpos]->cid_name, e->ring.callingname, sizeof(pri->pvts[chanpos]->cid_name)); + pri->pvts[chanpos]->cid_ton = e->ring.callingplan; /* this is the callingplan (TON/NPI), e->ring.callingplan>>4 would be the TON */ + } else { + pri->pvts[chanpos]->cid_num[0] = '\0'; + pri->pvts[chanpos]->cid_ani[0] = '\0'; + pri->pvts[chanpos]->cid_name[0] = '\0'; + pri->pvts[chanpos]->cid_ton = 0; + } + apply_plan_to_number(pri->pvts[chanpos]->rdnis, sizeof(pri->pvts[chanpos]->rdnis), pri, + e->ring.redirectingnum, e->ring.callingplanrdnis); + /* If immediate=yes go to s|1 */ + if (pri->pvts[chanpos]->immediate) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Going to extension s|1 because of immediate=yes\n"); + pri->pvts[chanpos]->exten[0] = 's'; + pri->pvts[chanpos]->exten[1] = '\0'; + } + /* Get called number */ + else if (!ast_strlen_zero(e->ring.callednum)) { + ast_copy_string(pri->pvts[chanpos]->exten, e->ring.callednum, sizeof(pri->pvts[chanpos]->exten)); + ast_copy_string(pri->pvts[chanpos]->dnid, e->ring.callednum, sizeof(pri->pvts[chanpos]->dnid)); + } else if (pri->overlapdial) + pri->pvts[chanpos]->exten[0] = '\0'; + else { + /* Some PRI circuits are set up to send _no_ digits. Handle them as 's'. */ + pri->pvts[chanpos]->exten[0] = 's'; + pri->pvts[chanpos]->exten[1] = '\0'; + } + /* Set DNID on all incoming calls -- even immediate */ + if (!ast_strlen_zero(e->ring.callednum)) + ast_copy_string(pri->pvts[chanpos]->dnid, e->ring.callednum, sizeof(pri->pvts[chanpos]->dnid)); + /* No number yet, but received "sending complete"? */ + if (e->ring.complete && (ast_strlen_zero(e->ring.callednum))) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Going to extension s|1 because of Complete received\n"); + pri->pvts[chanpos]->exten[0] = 's'; + pri->pvts[chanpos]->exten[1] = '\0'; + } + /* Make sure extension exists (or in overlap dial mode, can exist) */ + if ((pri->overlapdial && ast_canmatch_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) || + ast_exists_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) { + /* Setup law */ + int law; + if (pri->switchtype != PRI_SWITCH_GR303_TMC) { + /* Set to audio mode at this point */ + law = 1; + if (ioctl(pri->pvts[chanpos]->subs[SUB_REAL].dfd, DAHDI_AUDIOMODE, &law) == -1) + ast_log(LOG_WARNING, "Unable to set audio mode on channel %d to %d: %s\n", pri->pvts[chanpos]->channel, law, strerror(errno)); + } + if (e->ring.layer1 == PRI_LAYER_1_ALAW) + law = DAHDI_LAW_ALAW; + else + law = DAHDI_LAW_MULAW; + res = dahdi_setlaw(pri->pvts[chanpos]->subs[SUB_REAL].dfd, law); + if (res < 0) + ast_log(LOG_WARNING, "Unable to set law on channel %d\n", pri->pvts[chanpos]->channel); + res = set_actual_gain(pri->pvts[chanpos]->subs[SUB_REAL].dfd, 0, pri->pvts[chanpos]->rxgain, pri->pvts[chanpos]->txgain, law); + if (res < 0) + ast_log(LOG_WARNING, "Unable to set gains on channel %d\n", pri->pvts[chanpos]->channel); + if (e->ring.complete || !pri->overlapdial) { + /* Just announce proceeding */ + pri->pvts[chanpos]->proceeding = 1; + pri_proceeding(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 0); + } else { + if (pri->switchtype != PRI_SWITCH_GR303_TMC) + pri_need_more_info(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 1); + else + pri_answer(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 1); + } + /* Get the use_callingpres state */ + pri->pvts[chanpos]->callingpres = e->ring.callingpres; + + /* Start PBX */ + if (!e->ring.complete && pri->overlapdial && ast_matchmore_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) { + /* Release the PRI lock while we create the channel */ + ast_mutex_unlock(&pri->lock); + if (crv) { + /* Set bearer and such */ + pri_assign_bearer(crv, pri, pri->pvts[chanpos]); + c = dahdi_new(crv, AST_STATE_RESERVED, 0, SUB_REAL, law, e->ring.ctype); + pri->pvts[chanpos]->owner = &inuse; + ast_log(LOG_DEBUG, "Started up crv %d:%d on bearer channel %d\n", pri->trunkgroup, crv->channel, crv->bearer->channel); + } else { + c = dahdi_new(pri->pvts[chanpos], AST_STATE_RESERVED, 0, SUB_REAL, law, e->ring.ctype); + } + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + + if (!ast_strlen_zero(e->ring.callingsubaddr)) { + pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr); + } + if (e->ring.ani2 >= 0) { + snprintf(ani2str, 5, "%.2d", e->ring.ani2); + pbx_builtin_setvar_helper(c, "ANI2", ani2str); + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->ring.useruserinfo)) { + pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo); + } +#endif + + snprintf(calledtonstr, sizeof(calledtonstr)-1, "%d", e->ring.calledplan); + pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr); + if (e->ring.redirectingreason >= 0) + pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason)); + + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_mutex_lock(&pri->lock); + + pthread_attr_init(&attr); + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + if (c && !ast_pthread_create(&threadid, &attr, ss_thread, c)) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Accepting overlap call from '%s' to '%s' on channel %d/%d, span %d\n", + plancallingnum, S_OR(pri->pvts[chanpos]->exten, "<unspecified>"), + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span); + } else { + ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span); + if (c) + ast_hangup(c); + else { + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION); + pri->pvts[chanpos]->call = NULL; + } + } + pthread_attr_destroy(&attr); + } else { + ast_mutex_unlock(&pri->lock); + /* Release PRI lock while we create the channel */ + c = dahdi_new(pri->pvts[chanpos], AST_STATE_RING, 1, SUB_REAL, law, e->ring.ctype); + if (c) { + char calledtonstr[10]; + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + + if (e->ring.ani2 >= 0) { + snprintf(ani2str, 5, "%d", e->ring.ani2); + pbx_builtin_setvar_helper(c, "ANI2", ani2str); + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->ring.useruserinfo)) { + pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo); + } +#endif + + if (e->ring.redirectingreason >= 0) + pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason)); + + snprintf(calledtonstr, sizeof(calledtonstr)-1, "%d", e->ring.calledplan); + pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr); + + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_mutex_lock(&pri->lock); + + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Accepting call from '%s' to '%s' on channel %d/%d, span %d\n", + plancallingnum, pri->pvts[chanpos]->exten, + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span); + dahdi_enable_ec(pri->pvts[chanpos]); + } else { + + ast_mutex_lock(&pri->lock); + + ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span); + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION); + pri->pvts[chanpos]->call = NULL; + } + } + } else { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Extension '%s' in context '%s' from '%s' does not exist. Rejecting call on channel %d/%d, span %d\n", + pri->pvts[chanpos]->exten, pri->pvts[chanpos]->context, pri->pvts[chanpos]->cid_num, pri->pvts[chanpos]->logicalspan, + pri->pvts[chanpos]->prioffset, pri->span); + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_UNALLOCATED); + pri->pvts[chanpos]->call = NULL; + pri->pvts[chanpos]->exten[0] = '\0'; + } + if (crv) + ast_mutex_unlock(&crv->lock); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } else { + if (e->ring.flexible) + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION); + else + pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_REQUESTED_CHAN_UNAVAIL); + } + break; + case PRI_EVENT_RINGING: + chanpos = pri_find_principle(pri, e->ringing.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Ringing requested on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->ringing.channel), PRI_CHANNEL(e->ringing.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->ringing.call); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Ringing requested on channel %d/%d not in use on span %d\n", + PRI_SPAN(e->ringing.channel), PRI_CHANNEL(e->ringing.channel), pri->span); + } else { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (ast_strlen_zero(pri->pvts[chanpos]->dop.dialstr)) { + dahdi_enable_ec(pri->pvts[chanpos]); + pri->pvts[chanpos]->subs[SUB_REAL].needringing = 1; + pri->pvts[chanpos]->alerting = 1; + } else + ast_log(LOG_DEBUG, "Deferring ringing notification because of extra digits to dial...\n"); +#ifdef PRI_PROGRESS_MASK + if (e->ringing.progressmask & PRI_PROG_INBAND_AVAILABLE) { +#else + if (e->ringing.progress == 8) { +#endif + /* Now we can do call progress detection */ + if (pri->pvts[chanpos]->dsp && pri->pvts[chanpos]->dsp_features) { + /* RINGING detection isn't required because we got ALERTING signal */ + ast_dsp_set_features(pri->pvts[chanpos]->dsp, pri->pvts[chanpos]->dsp_features & ~DSP_PROGRESS_RINGING); + pri->pvts[chanpos]->dsp_features = 0; + } + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->ringing.useruserinfo)) { + struct ast_channel *owner = pri->pvts[chanpos]->owner; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + pbx_builtin_setvar_helper(owner, "USERUSERINFO", e->ringing.useruserinfo); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + } +#endif + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_PROGRESS: + /* Get chan value if e->e is not PRI_EVNT_RINGING */ + chanpos = pri_find_principle(pri, e->proceeding.channel); + if (chanpos > -1) { +#ifdef PRI_PROGRESS_MASK + if ((!pri->pvts[chanpos]->progress) || (e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE)) { +#else + if ((!pri->pvts[chanpos]->progress) || (e->proceeding.progress == 8)) { +#endif + struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_PROGRESS, }; + + if (e->proceeding.cause > -1) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "PROGRESS with cause code %d received\n", e->proceeding.cause); + + /* Work around broken, out of spec USER_BUSY cause in a progress message */ + if (e->proceeding.cause == AST_CAUSE_USER_BUSY) { + if (pri->pvts[chanpos]->owner) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "PROGRESS with 'user busy' received, signaling AST_CONTROL_BUSY instead of AST_CONTROL_PROGRESS\n"); + + pri->pvts[chanpos]->owner->hangupcause = e->proceeding.cause; + f.subclass = AST_CONTROL_BUSY; + } + } + } + + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_log(LOG_DEBUG, "Queuing frame from PRI_EVENT_PROGRESS on channel %d/%d span %d\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset,pri->span); + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); +#ifdef PRI_PROGRESS_MASK + if (e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE) { +#else + if (e->proceeding.progress == 8) { +#endif + /* Now we can do call progress detection */ + if (pri->pvts[chanpos]->dsp && pri->pvts[chanpos]->dsp_features) { + ast_dsp_set_features(pri->pvts[chanpos]->dsp, pri->pvts[chanpos]->dsp_features); + pri->pvts[chanpos]->dsp_features = 0; + } + } + pri->pvts[chanpos]->progress = 1; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_PROCEEDING: + chanpos = pri_find_principle(pri, e->proceeding.channel); + if (chanpos > -1) { + if (!pri->pvts[chanpos]->proceeding) { + struct ast_frame f = { AST_FRAME_CONTROL, AST_CONTROL_PROCEEDING, }; + + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_log(LOG_DEBUG, "Queuing frame from PRI_EVENT_PROCEEDING on channel %d/%d span %d\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset,pri->span); + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); +#ifdef PRI_PROGRESS_MASK + if (e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE) { +#else + if (e->proceeding.progress == 8) { +#endif + /* Now we can do call progress detection */ + if (pri->pvts[chanpos]->dsp && pri->pvts[chanpos]->dsp_features) { + ast_dsp_set_features(pri->pvts[chanpos]->dsp, pri->pvts[chanpos]->dsp_features); + pri->pvts[chanpos]->dsp_features = 0; + } + /* Bring voice path up */ + f.subclass = AST_CONTROL_PROGRESS; + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); + } + pri->pvts[chanpos]->proceeding = 1; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_FACNAME: + chanpos = pri_find_principle(pri, e->facname.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Facility Name requested on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->facname.channel), PRI_CHANNEL(e->facname.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->facname.call); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Facility Name requested on channel %d/%d not in use on span %d\n", + PRI_SPAN(e->facname.channel), PRI_CHANNEL(e->facname.channel), pri->span); + } else { + /* Re-use *69 field for PRI */ + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_copy_string(pri->pvts[chanpos]->lastcid_num, e->facname.callingnum, sizeof(pri->pvts[chanpos]->lastcid_num)); + ast_copy_string(pri->pvts[chanpos]->lastcid_name, e->facname.callingname, sizeof(pri->pvts[chanpos]->lastcid_name)); + pri->pvts[chanpos]->subs[SUB_REAL].needcallerid =1; + dahdi_enable_ec(pri->pvts[chanpos]); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_ANSWER: + chanpos = pri_find_principle(pri, e->answer.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Answer on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->answer.channel), PRI_CHANNEL(e->answer.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->answer.call); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Answer requested on channel %d/%d not in use on span %d\n", + PRI_SPAN(e->answer.channel), PRI_CHANNEL(e->answer.channel), pri->span); + } else { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + /* Now we can do call progress detection */ + + /* We changed this so it turns on the DSP no matter what... progress or no progress. + * By this time, we need DTMF detection and other features that were previously disabled + * -- Matt F */ + if (pri->pvts[chanpos]->dsp && pri->pvts[chanpos]->dsp_features) { + ast_dsp_set_features(pri->pvts[chanpos]->dsp, pri->pvts[chanpos]->dsp_features); + pri->pvts[chanpos]->dsp_features = 0; + } + if (pri->pvts[chanpos]->realcall && (pri->pvts[chanpos]->realcall->sig == SIG_FXSKS)) { + ast_log(LOG_DEBUG, "Starting up GR-303 trunk now that we got CONNECT...\n"); + x = DAHDI_START; + res = ioctl(pri->pvts[chanpos]->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); + if (res < 0) { + if (errno != EINPROGRESS) { + ast_log(LOG_WARNING, "Unable to start channel: %s\n", strerror(errno)); + } + } + } else if (!ast_strlen_zero(pri->pvts[chanpos]->dop.dialstr)) { + pri->pvts[chanpos]->dialing = 1; + /* Send any "w" waited stuff */ + res = ioctl(pri->pvts[chanpos]->subs[SUB_REAL].dfd, DAHDI_DIAL, &pri->pvts[chanpos]->dop); + if (res < 0) { + ast_log(LOG_WARNING, "Unable to initiate dialing on trunk channel %d: %s\n", pri->pvts[chanpos]->channel, strerror(errno)); + pri->pvts[chanpos]->dop.dialstr[0] = '\0'; + } else + ast_log(LOG_DEBUG, "Sent deferred digit string: %s\n", pri->pvts[chanpos]->dop.dialstr); + pri->pvts[chanpos]->dop.dialstr[0] = '\0'; + } else if (pri->pvts[chanpos]->confirmanswer) { + ast_log(LOG_DEBUG, "Waiting on answer confirmation on channel %d!\n", pri->pvts[chanpos]->channel); + } else { + pri->pvts[chanpos]->subs[SUB_REAL].needanswer =1; + /* Enable echo cancellation if it's not on already */ + dahdi_enable_ec(pri->pvts[chanpos]); + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->answer.useruserinfo)) { + struct ast_channel *owner = pri->pvts[chanpos]->owner; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + pbx_builtin_setvar_helper(owner, "USERUSERINFO", e->answer.useruserinfo); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + } +#endif + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_HANGUP: + chanpos = pri_find_principle(pri, e->hangup.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Hangup requested on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (!pri->pvts[chanpos]->alreadyhungup) { + /* we're calling here dahdi_hangup so once we get there we need to clear p->call after calling pri_hangup */ + pri->pvts[chanpos]->alreadyhungup = 1; + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[chanpos]->owner) { + /* Queue a BUSY instead of a hangup if our cause is appropriate */ + pri->pvts[chanpos]->owner->hangupcause = e->hangup.cause; + if (pri->pvts[chanpos]->owner->_state == AST_STATE_UP) + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + else { + switch (e->hangup.cause) { + case PRI_CAUSE_USER_BUSY: + pri->pvts[chanpos]->subs[SUB_REAL].needbusy =1; + break; + case PRI_CAUSE_CALL_REJECTED: + case PRI_CAUSE_NETWORK_OUT_OF_ORDER: + case PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION: + case PRI_CAUSE_SWITCH_CONGESTION: + case PRI_CAUSE_DESTINATION_OUT_OF_ORDER: + case PRI_CAUSE_NORMAL_TEMPORARY_FAILURE: + pri->pvts[chanpos]->subs[SUB_REAL].needcongestion =1; + break; + default: + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + } + } + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d/%d, span %d got hangup, cause %d\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, e->hangup.cause); + } else { + pri_hangup(pri->pri, pri->pvts[chanpos]->call, e->hangup.cause); + pri->pvts[chanpos]->call = NULL; + } + if (e->hangup.cause == PRI_CAUSE_REQUESTED_CHAN_UNAVAIL) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Forcing restart of channel %d/%d on span %d since channel reported in use\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[chanpos])); + pri->pvts[chanpos]->resetting = 1; + } + if (e->hangup.aoc_units > -1) + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d/%d, span %d received AOC-E charging %d unit%s\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, (int)e->hangup.aoc_units, (e->hangup.aoc_units == 1) ? "" : "s"); + +#ifdef SUPPORT_USERUSER + if (pri->pvts[chanpos]->owner && !ast_strlen_zero(e->hangup.useruserinfo)) { + struct ast_channel *owner = pri->pvts[chanpos]->owner; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + pbx_builtin_setvar_helper(owner, "USERUSERINFO", e->hangup.useruserinfo); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + } +#endif + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } else { + ast_log(LOG_WARNING, "Hangup on bad channel %d/%d on span %d\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } + } + break; +#ifndef PRI_EVENT_HANGUP_REQ +#error please update libpri +#endif + case PRI_EVENT_HANGUP_REQ: + chanpos = pri_find_principle(pri, e->hangup.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Hangup REQ requested on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[chanpos]->owner) { + pri->pvts[chanpos]->owner->hangupcause = e->hangup.cause; + if (pri->pvts[chanpos]->owner->_state == AST_STATE_UP) + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + else { + switch (e->hangup.cause) { + case PRI_CAUSE_USER_BUSY: + pri->pvts[chanpos]->subs[SUB_REAL].needbusy =1; + break; + case PRI_CAUSE_CALL_REJECTED: + case PRI_CAUSE_NETWORK_OUT_OF_ORDER: + case PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION: + case PRI_CAUSE_SWITCH_CONGESTION: + case PRI_CAUSE_DESTINATION_OUT_OF_ORDER: + case PRI_CAUSE_NORMAL_TEMPORARY_FAILURE: + pri->pvts[chanpos]->subs[SUB_REAL].needcongestion =1; + break; + default: + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + } + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d/%d, span %d got hangup request, cause %d\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span, e->hangup.cause); + if (e->hangup.aoc_units > -1) + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d/%d, span %d received AOC-E charging %d unit%s\n", + pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, (int)e->hangup.aoc_units, (e->hangup.aoc_units == 1) ? "" : "s"); + } else { + pri_hangup(pri->pri, pri->pvts[chanpos]->call, e->hangup.cause); + pri->pvts[chanpos]->call = NULL; + } + if (e->hangup.cause == PRI_CAUSE_REQUESTED_CHAN_UNAVAIL) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Forcing restart of channel %d/%d span %d since channel reported in use\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[chanpos])); + pri->pvts[chanpos]->resetting = 1; + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->hangup.useruserinfo)) { + struct ast_channel *owner = pri->pvts[chanpos]->owner; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + pbx_builtin_setvar_helper(owner, "USERUSERINFO", e->hangup.useruserinfo); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + } +#endif + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } else { + ast_log(LOG_WARNING, "Hangup REQ on bad channel %d/%d on span %d\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } + } + break; + case PRI_EVENT_HANGUP_ACK: + chanpos = pri_find_principle(pri, e->hangup.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Hangup ACK requested on unconfigured channel number %d/%d span %d\n", + PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + pri->pvts[chanpos]->call = NULL; + pri->pvts[chanpos]->resetting = 0; + if (pri->pvts[chanpos]->owner) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Channel %d/%d, span %d got hangup ACK\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span); + } + +#ifdef SUPPORT_USERUSER + if (!ast_strlen_zero(e->hangup.useruserinfo)) { + struct ast_channel *owner = pri->pvts[chanpos]->owner; + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + pbx_builtin_setvar_helper(owner, "USERUSERINFO", e->hangup.useruserinfo); + ast_mutex_lock(&pri->pvts[chanpos]->lock); + } +#endif + + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + } + break; + case PRI_EVENT_CONFIG_ERR: + ast_log(LOG_WARNING, "PRI Error on span %d: %s\n", pri->trunkgroup, e->err.err); + break; + case PRI_EVENT_RESTART_ACK: + chanpos = pri_find_principle(pri, e->restartack.channel); + if (chanpos < 0) { + /* Sometime switches (e.g. I421 / British Telecom) don't give us the + channel number, so we have to figure it out... This must be why + everybody resets exactly a channel at a time. */ + for (x = 0; x < pri->numchans; x++) { + if (pri->pvts[x] && pri->pvts[x]->resetting) { + chanpos = x; + ast_mutex_lock(&pri->pvts[chanpos]->lock); + ast_log(LOG_DEBUG, "Assuming restart ack is really for channel %d/%d span %d\n", pri->pvts[chanpos]->logicalspan, + pri->pvts[chanpos]->prioffset, pri->span); + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[chanpos]->owner) { + ast_log(LOG_WARNING, "Got restart ack on channel %d/%d with owner on span %d\n", pri->pvts[chanpos]->logicalspan, + pri->pvts[chanpos]->prioffset, pri->span); + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + pri->pvts[chanpos]->resetting = 0; + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "B-channel %d/%d successfully restarted on span %d\n", pri->pvts[chanpos]->logicalspan, + pri->pvts[chanpos]->prioffset, pri->span); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + if (pri->resetting) + pri_check_restart(pri); + break; + } + } + if (chanpos < 0) { + ast_log(LOG_WARNING, "Restart ACK requested on strange channel %d/%d span %d\n", + PRI_SPAN(e->restartack.channel), PRI_CHANNEL(e->restartack.channel), pri->span); + } + } else { + if (pri->pvts[chanpos]) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + if (pri->pvts[chanpos]->realcall) + pri_hangup_all(pri->pvts[chanpos]->realcall, pri); + else if (pri->pvts[chanpos]->owner) { + ast_log(LOG_WARNING, "Got restart ack on channel %d/%d span %d with owner\n", + PRI_SPAN(e->restartack.channel), PRI_CHANNEL(e->restartack.channel), pri->span); + pri->pvts[chanpos]->owner->_softhangup |= AST_SOFTHANGUP_DEV; + } + pri->pvts[chanpos]->resetting = 0; + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "B-channel %d/%d successfully restarted on span %d\n", pri->pvts[chanpos]->logicalspan, + pri->pvts[chanpos]->prioffset, pri->span); + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + if (pri->resetting) + pri_check_restart(pri); + } + } + break; + case PRI_EVENT_SETUP_ACK: + chanpos = pri_find_principle(pri, e->setup_ack.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Received SETUP_ACKNOWLEDGE on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->setup_ack.channel), PRI_CHANNEL(e->setup_ack.channel), pri->span); + } else { + chanpos = pri_fixup_principle(pri, chanpos, e->setup_ack.call); + if (chanpos > -1) { + ast_mutex_lock(&pri->pvts[chanpos]->lock); + pri->pvts[chanpos]->setup_ack = 1; + /* Send any queued digits */ + for (x = 0;x < strlen(pri->pvts[chanpos]->dialdest); x++) { + ast_log(LOG_DEBUG, "Sending pending digit '%c'\n", pri->pvts[chanpos]->dialdest[x]); + pri_information(pri->pri, pri->pvts[chanpos]->call, + pri->pvts[chanpos]->dialdest[x]); + } + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } else + ast_log(LOG_WARNING, "Unable to move channel %d!\n", e->setup_ack.channel); + } + break; + case PRI_EVENT_NOTIFY: + chanpos = pri_find_principle(pri, e->notify.channel); + if (chanpos < 0) { + ast_log(LOG_WARNING, "Received NOTIFY on unconfigured channel %d/%d span %d\n", + PRI_SPAN(e->notify.channel), PRI_CHANNEL(e->notify.channel), pri->span); + } else { + struct ast_frame f = { AST_FRAME_CONTROL, }; + ast_mutex_lock(&pri->pvts[chanpos]->lock); + switch (e->notify.info) { + case PRI_NOTIFY_REMOTE_HOLD: + f.subclass = AST_CONTROL_HOLD; + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); + break; + case PRI_NOTIFY_REMOTE_RETRIEVAL: + f.subclass = AST_CONTROL_UNHOLD; + dahdi_queue_frame(pri->pvts[chanpos], &f, pri); + break; + } + ast_mutex_unlock(&pri->pvts[chanpos]->lock); + } + break; + default: + ast_log(LOG_DEBUG, "Event: %d\n", e->e); + } + } + ast_mutex_unlock(&pri->lock); + } + /* Never reached */ + return NULL; +} + +static int start_pri(struct dahdi_pri *pri) +{ + int res, x; + struct dahdi_params p; + struct dahdi_bufferinfo bi; + struct dahdi_spaninfo si; + int i; + + for (i = 0; i < NUM_DCHANS; i++) { + if (!pri->dchannels[i]) + break; + pri->fds[i] = open(DAHDI_FILE_CHANNEL, O_RDWR, 0600); + x = pri->dchannels[i]; + if ((pri->fds[i] < 0) || (ioctl(pri->fds[i],DAHDI_SPECIFY,&x) == -1)) { + ast_log(LOG_ERROR, "Unable to open D-channel %d (%s)\n", x, strerror(errno)); + return -1; + } + res = ioctl(pri->fds[i], DAHDI_GET_PARAMS, &p); + if (res) { + dahdi_close_pri_fd(pri, i); + ast_log(LOG_ERROR, "Unable to get parameters for D-channel %d (%s)\n", x, strerror(errno)); + return -1; + } + if ((p.sigtype != DAHDI_SIG_HDLCFCS) && (p.sigtype != DAHDI_SIG_HARDHDLC)) { + dahdi_close_pri_fd(pri, i); + ast_log(LOG_ERROR, "D-channel %d is not in HDLC/FCS mode. See /etc/dahdi/system.conf\n", x); + return -1; + } + memset(&si, 0, sizeof(si)); + res = ioctl(pri->fds[i], DAHDI_SPANSTAT, &si); + if (res) { + dahdi_close_pri_fd(pri, i); + ast_log(LOG_ERROR, "Unable to get span state for D-channel %d (%s)\n", x, strerror(errno)); + } + if (!si.alarms) + pri->dchanavail[i] |= DCHAN_NOTINALARM; + else + pri->dchanavail[i] &= ~DCHAN_NOTINALARM; + bi.txbufpolicy = DAHDI_POLICY_IMMEDIATE; + bi.rxbufpolicy = DAHDI_POLICY_IMMEDIATE; + bi.numbufs = 32; + bi.bufsize = 1024; + if (ioctl(pri->fds[i], DAHDI_SET_BUFINFO, &bi)) { + ast_log(LOG_ERROR, "Unable to set appropriate buffering on channel %d: %s\n", x, strerror(errno)); + dahdi_close_pri_fd(pri, i); + return -1; + } + pri->dchans[i] = pri_new(pri->fds[i], pri->nodetype, pri->switchtype); + /* Force overlap dial if we're doing GR-303! */ + if (pri->switchtype == PRI_SWITCH_GR303_TMC) + pri->overlapdial = 1; + pri_set_overlapdial(pri->dchans[i],pri->overlapdial); +#ifdef HAVE_PRI_INBANDDISCONNECT + pri_set_inbanddisconnect(pri->dchans[i], pri->inbanddisconnect); +#endif + /* Enslave to master if appropriate */ + if (i) + pri_enslave(pri->dchans[0], pri->dchans[i]); + if (!pri->dchans[i]) { + dahdi_close_pri_fd(pri, i); + ast_log(LOG_ERROR, "Unable to create PRI structure\n"); + return -1; + } + pri_set_debug(pri->dchans[i], DEFAULT_PRI_DEBUG); + pri_set_nsf(pri->dchans[i], pri->nsf); +#ifdef PRI_GETSET_TIMERS + for (x = 0; x < PRI_MAX_TIMERS; x++) { + if (pritimers[x] != 0) + pri_set_timer(pri->dchans[i], x, pritimers[x]); + } +#endif + } + /* Assume primary is the one we use */ + pri->pri = pri->dchans[0]; + pri->resetpos = -1; + if (ast_pthread_create_background(&pri->master, NULL, pri_dchannel, pri)) { + for (i = 0; i < NUM_DCHANS; i++) { + if (!pri->dchannels[i]) + break; + dahdi_close_pri_fd(pri, i); + } + ast_log(LOG_ERROR, "Unable to spawn D-channel: %s\n", strerror(errno)); + return -1; + } + return 0; +} + +static char *complete_span_helper(const char *line, const char *word, int pos, int state, int rpos) +{ + int which, span; + char *ret = NULL; + + if (pos != rpos) + return ret; + + for (which = span = 0; span < NUM_SPANS; span++) { + if (pris[span].pri && ++which > state) { + if (asprintf(&ret, "%d", span + 1) < 0) { /* user indexes start from 1 */ + ast_log(LOG_WARNING, "asprintf() failed: %s\n", strerror(errno)); + } + break; + } + } + return ret; +} + +static char *complete_span_4(const char *line, const char *word, int pos, int state) +{ + return complete_span_helper(line,word,pos,state,3); +} + +static char *complete_span_5(const char *line, const char *word, int pos, int state) +{ + return complete_span_helper(line,word,pos,state,4); +} + +static int handle_pri_set_debug_file(int fd, int argc, char **argv) +{ + int myfd; + + if (!strncasecmp(argv[1], "set", 3)) { + if (argc < 5) + return RESULT_SHOWUSAGE; + + if (ast_strlen_zero(argv[4])) + return RESULT_SHOWUSAGE; + + myfd = open(argv[4], O_CREAT|O_WRONLY, 0600); + if (myfd < 0) { + ast_cli(fd, "Unable to open '%s' for writing\n", argv[4]); + return RESULT_SUCCESS; + } + + ast_mutex_lock(&pridebugfdlock); + + if (pridebugfd >= 0) + close(pridebugfd); + + pridebugfd = myfd; + ast_copy_string(pridebugfilename,argv[4],sizeof(pridebugfilename)); + + ast_mutex_unlock(&pridebugfdlock); + + ast_cli(fd, "PRI debug output will be sent to '%s'\n", argv[4]); + } else { + /* Assume it is unset */ + ast_mutex_lock(&pridebugfdlock); + close(pridebugfd); + pridebugfd = -1; + ast_cli(fd, "PRI debug output to file disabled\n"); + ast_mutex_unlock(&pridebugfdlock); + } + + return RESULT_SUCCESS; +} + +#ifdef HAVE_PRI_VERSION +static int handle_pri_version(int fd, int agc, char *argv[]) { + ast_cli(fd, "libpri version: %s\n", pri_get_version()); + return RESULT_SUCCESS; +} +#endif + +static int handle_pri_debug(int fd, int argc, char *argv[]) +{ + int span; + int x; + if (argc < 4) { + return RESULT_SHOWUSAGE; + } + span = atoi(argv[3]); + if ((span < 1) || (span > NUM_SPANS)) { + ast_cli(fd, "Invalid span %s. Should be a number %d to %d\n", argv[3], 1, NUM_SPANS); + return RESULT_SUCCESS; + } + if (!pris[span-1].pri) { + ast_cli(fd, "No PRI running on span %d\n", span); + return RESULT_SUCCESS; + } + for (x = 0; x < NUM_DCHANS; x++) { + if (pris[span-1].dchans[x]) + pri_set_debug(pris[span-1].dchans[x], PRI_DEBUG_APDU | + PRI_DEBUG_Q931_DUMP | PRI_DEBUG_Q931_STATE | + PRI_DEBUG_Q921_STATE); + } + ast_cli(fd, "Enabled debugging on span %d\n", span); + return RESULT_SUCCESS; +} + + + +static int handle_pri_no_debug(int fd, int argc, char *argv[]) +{ + int span; + int x; + if (argc < 5) + return RESULT_SHOWUSAGE; + span = atoi(argv[4]); + if ((span < 1) || (span > NUM_SPANS)) { + ast_cli(fd, "Invalid span %s. Should be a number %d to %d\n", argv[4], 1, NUM_SPANS); + return RESULT_SUCCESS; + } + if (!pris[span-1].pri) { + ast_cli(fd, "No PRI running on span %d\n", span); + return RESULT_SUCCESS; + } + for (x = 0; x < NUM_DCHANS; x++) { + if (pris[span-1].dchans[x]) + pri_set_debug(pris[span-1].dchans[x], 0); + } + ast_cli(fd, "Disabled debugging on span %d\n", span); + return RESULT_SUCCESS; +} + +static int handle_pri_really_debug(int fd, int argc, char *argv[]) +{ + int span; + int x; + if (argc < 5) + return RESULT_SHOWUSAGE; + span = atoi(argv[4]); + if ((span < 1) || (span > NUM_SPANS)) { + ast_cli(fd, "Invalid span %s. Should be a number %d to %d\n", argv[4], 1, NUM_SPANS); + return RESULT_SUCCESS; + } + if (!pris[span-1].pri) { + ast_cli(fd, "No PRI running on span %d\n", span); + return RESULT_SUCCESS; + } + for (x = 0; x < NUM_DCHANS; x++) { + if (pris[span-1].dchans[x]) + pri_set_debug(pris[span-1].dchans[x], PRI_DEBUG_APDU | + PRI_DEBUG_Q931_DUMP | PRI_DEBUG_Q931_STATE | + PRI_DEBUG_Q921_RAW | PRI_DEBUG_Q921_DUMP | PRI_DEBUG_Q921_STATE); + } + ast_cli(fd, "Enabled EXTENSIVE debugging on span %d\n", span); + return RESULT_SUCCESS; +} + +static void build_status(char *s, size_t len, int status, int active) +{ + if (!s || len < 1) { + return; + } + s[0] = '\0'; + if (status & DCHAN_PROVISIONED) + strncat(s, "Provisioned, ", len - strlen(s) - 1); + if (!(status & DCHAN_NOTINALARM)) + strncat(s, "In Alarm, ", len - strlen(s) - 1); + if (status & DCHAN_UP) + strncat(s, "Up", len - strlen(s) - 1); + else + strncat(s, "Down", len - strlen(s) - 1); + if (active) + strncat(s, ", Active", len - strlen(s) - 1); + else + strncat(s, ", Standby", len - strlen(s) - 1); + s[len - 1] = '\0'; +} + +static int handle_pri_show_spans(int fd, int argc, char *argv[]) +{ + int span; + int x; + char status[256]; + if (argc != 3) + return RESULT_SHOWUSAGE; + + for (span = 0; span < NUM_SPANS; span++) { + if (pris[span].pri) { + for (x = 0; x < NUM_DCHANS; x++) { + if (pris[span].dchannels[x]) { + build_status(status, sizeof(status), pris[span].dchanavail[x], pris[span].dchans[x] == pris[span].pri); + ast_cli(fd, "PRI span %d/%d: %s\n", span + 1, x, status); + } + } + } + } + return RESULT_SUCCESS; +} + +static int handle_pri_show_span(int fd, int argc, char *argv[]) +{ + int span; + int x; + char status[256]; + if (argc < 4) + return RESULT_SHOWUSAGE; + span = atoi(argv[3]); + if ((span < 1) || (span > NUM_SPANS)) { + ast_cli(fd, "Invalid span '%s'. Should be a number from %d to %d\n", argv[3], 1, NUM_SPANS); + return RESULT_SUCCESS; + } + if (!pris[span-1].pri) { + ast_cli(fd, "No PRI running on span %d\n", span); + return RESULT_SUCCESS; + } + for (x = 0; x < NUM_DCHANS; x++) { + if (pris[span-1].dchannels[x]) { +#ifdef PRI_DUMP_INFO_STR + char *info_str = NULL; +#endif + ast_cli(fd, "%s D-channel: %d\n", pri_order(x), pris[span-1].dchannels[x]); + build_status(status, sizeof(status), pris[span-1].dchanavail[x], pris[span-1].dchans[x] == pris[span-1].pri); + ast_cli(fd, "Status: %s\n", status); +#ifdef PRI_DUMP_INFO_STR + info_str = pri_dump_info_str(pris[span-1].pri); + if (info_str) { + ast_cli(fd, "%s", info_str); + free(info_str); + } +#else + pri_dump_info(pris[span-1].pri); +#endif + ast_cli(fd, "\n"); + } + } + return RESULT_SUCCESS; +} + +static int handle_pri_show_debug(int fd, int argc, char *argv[]) +{ + int x; + int span; + int count=0; + int debug=0; + + for (span = 0; span < NUM_SPANS; span++) { + if (pris[span].pri) { + for (x = 0; x < NUM_DCHANS; x++) { + debug = 0; + if (pris[span].dchans[x]) { + debug = pri_get_debug(pris[span].dchans[x]); + ast_cli(fd, "Span %d: Debug: %s\tIntense: %s\n", span+1, (debug&PRI_DEBUG_Q931_STATE)? "Yes" : "No" ,(debug&PRI_DEBUG_Q921_RAW)? "Yes" : "No" ); + count++; + } + } + } + + } + ast_mutex_lock(&pridebugfdlock); + if (pridebugfd >= 0) + ast_cli(fd, "Logging PRI debug to file %s\n", pridebugfilename); + ast_mutex_unlock(&pridebugfdlock); + + if (!count) + ast_cli(fd, "No debug set or no PRI running\n"); + return RESULT_SUCCESS; +} + +static const char pri_debug_help[] = + "Usage: pri debug span <span>\n" + " Enables debugging on a given PRI span\n"; + +static const char pri_no_debug_help[] = + "Usage: pri no debug span <span>\n" + " Disables debugging on a given PRI span\n"; + +static const char pri_really_debug_help[] = + "Usage: pri intensive debug span <span>\n" + " Enables debugging down to the Q.921 level\n"; + +static const char pri_show_span_help[] = + "Usage: pri show span <span>\n" + " Displays PRI Information on a given PRI span\n"; + +static const char pri_show_spans_help[] = + "Usage: pri show spans\n" + " Displays PRI Information\n"; + +static struct ast_cli_entry dahdi_pri_cli[] = { + { { "pri", "debug", "span", NULL }, + handle_pri_debug, "Enables PRI debugging on a span", + pri_debug_help, complete_span_4 }, + + { { "pri", "no", "debug", "span", NULL }, + handle_pri_no_debug, "Disables PRI debugging on a span", + pri_no_debug_help, complete_span_5 }, + + { { "pri", "intense", "debug", "span", NULL }, + handle_pri_really_debug, "Enables REALLY INTENSE PRI debugging", + pri_really_debug_help, complete_span_5 }, + + { { "pri", "show", "spans", NULL }, + handle_pri_show_spans, "Displays PRI Information", + pri_show_spans_help }, + + { { "pri", "show", "span", NULL }, + handle_pri_show_span, "Displays PRI Information", + pri_show_span_help, complete_span_4 }, + + { { "pri", "show", "debug", NULL }, + handle_pri_show_debug, "Displays current PRI debug settings" }, + + { { "pri", "set", "debug", "file", NULL }, + handle_pri_set_debug_file, "Sends PRI debug output to the specified file" }, + + { { "pri", "unset", "debug", "file", NULL }, + handle_pri_set_debug_file, "Ends PRI debug output to file" }, + +#ifdef HAVE_PRI_VERSION + { { "pri", "show", "version", NULL }, + handle_pri_version, "Displays version of libpri" }, +#endif +}; + +#endif /* HAVE_PRI */ + +static int dahdi_destroy_channel(int fd, int argc, char **argv) +{ + int channel; + + if (argc != 4) + return RESULT_SHOWUSAGE; + + channel = atoi(argv[3]); + + return dahdi_destroy_channel_bynum(channel); +} + +static void dahdi_softhangup_all(void) +{ + struct dahdi_pvt *p; +retry: + ast_mutex_lock(&iflock); + for (p = iflist; p; p = p->next) { + ast_mutex_lock(&p->lock); + if (p->owner && !p->restartpending) { + if (ast_channel_trylock(p->owner)) { + if (option_debug > 2) + ast_verbose("Avoiding deadlock\n"); + /* Avoid deadlock since you're not supposed to lock iflock or pvt before a channel */ + ast_mutex_unlock(&p->lock); + ast_mutex_unlock(&iflock); + goto retry; + } + if (option_debug > 2) + ast_verbose("Softhanging up on %s\n", p->owner->name); + ast_softhangup_nolock(p->owner, AST_SOFTHANGUP_EXPLICIT); + p->restartpending = 1; + num_restart_pending++; + ast_channel_unlock(p->owner); + } + ast_mutex_unlock(&p->lock); + } + ast_mutex_unlock(&iflock); +} + +static int setup_dahdi(int reload); +static int dahdi_restart(void) +{ +#if defined(HAVE_PRI) + int i, j; +#endif + int cancel_code; + struct dahdi_pvt *p; + + ast_mutex_lock(&restart_lock); + + if (option_verbose) + ast_verbose("Destroying channels and reloading DAHDI configuration.\n"); + dahdi_softhangup_all(); + if (option_verbose > 3) + ast_verbose("Initial softhangup of all DAHDI channels complete.\n"); + + #if defined(HAVE_PRI) + for (i = 0; i < NUM_SPANS; i++) { + if (pris[i].master && (pris[i].master != AST_PTHREADT_NULL)) { + cancel_code = pthread_cancel(pris[i].master); + pthread_kill(pris[i].master, SIGURG); + if (option_debug > 3) + ast_verbose("Waiting to join thread of span %d with pid=%p, cancel_code=%d\n", i, (void *) pris[i].master, cancel_code); + pthread_join(pris[i].master, NULL); + if (option_debug > 3) + ast_verbose("Joined thread of span %d\n", i); + } + } + #endif + + ast_mutex_lock(&monlock); + if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) { + cancel_code = pthread_cancel(monitor_thread); + pthread_kill(monitor_thread, SIGURG); + if (option_debug > 3) + ast_verbose("Waiting to join monitor thread with pid=%p, cancel_code=%d\n", (void *) monitor_thread, cancel_code); + pthread_join(monitor_thread, NULL); + if (option_debug > 3) + ast_verbose("Joined monitor thread\n"); + } + monitor_thread = AST_PTHREADT_NULL; /* prepare to restart thread in setup_dahdi once channels are reconfigured */ + + ast_mutex_lock(&ss_thread_lock); + while (ss_thread_count > 0) { /* let ss_threads finish and run dahdi_hangup before dahvi_pvts are destroyed */ + int x = DAHDI_FLASH; + if (option_debug > 2) + ast_verbose("Waiting on %d ss_thread(s) to finish\n", ss_thread_count); + + for (p = iflist; p; p = p->next) { + if (p->owner) + ioctl(p->subs[SUB_REAL].dfd, DAHDI_HOOK, &x); /* important to create an event for dahdi_wait_event to register so that all ss_threads terminate */ + } + ast_cond_wait(&ss_thread_complete, &ss_thread_lock); + } + + /* ensure any created channels before monitor threads were stopped are hungup */ + dahdi_softhangup_all(); + if (option_verbose > 3) + ast_verbose("Final softhangup of all DAHDI channels complete.\n"); + destroy_all_channels(); + if (option_debug) + ast_verbose("Channels destroyed. Now re-reading config. %d active channels remaining.\n", ast_active_channels()); + + ast_mutex_unlock(&monlock); + + #ifdef HAVE_PRI + for (i = 0; i < NUM_SPANS; i++) { + for (j = 0; j < NUM_DCHANS; j++) + dahdi_close_pri_fd(&(pris[i]), j); + } + + memset(pris, 0, sizeof(pris)); + for (i = 0; i < NUM_SPANS; i++) { + ast_mutex_init(&pris[i].lock); + pris[i].offset = -1; + pris[i].master = AST_PTHREADT_NULL; + for (j = 0; j < NUM_DCHANS; j++) + pris[i].fds[j] = -1; + } + pri_set_error(dahdi_pri_error); + pri_set_message(dahdi_pri_message); + #endif + + if (setup_dahdi(2) != 0) { + ast_log(LOG_WARNING, "Reload channels from dahdi config failed!\n"); + ast_mutex_unlock(&ss_thread_lock); + return 1; + } + ast_mutex_unlock(&ss_thread_lock); + ast_mutex_unlock(&restart_lock); + return 0; +} + +static int dahdi_restart_cmd(int fd, int argc, char **argv) +{ + if (argc != 2) { + return RESULT_SHOWUSAGE; + } + + if (dahdi_restart() != 0) + return RESULT_FAILURE; + return RESULT_SUCCESS; +} + +static int dahdi_show_channels(int fd, int argc, char **argv) +{ +#define FORMAT "%7s %-10.10s %-15.15s %-10.10s %-20.20s\n" +#define FORMAT2 "%7s %-10.10s %-15.15s %-10.10s %-20.20s\n" + struct dahdi_pvt *tmp = NULL; + char tmps[20] = ""; + ast_mutex_t *lock; + struct dahdi_pvt *start; +#ifdef HAVE_PRI + int trunkgroup; + struct dahdi_pri *pri = NULL; + int x; +#endif + + lock = &iflock; + start = iflist; + +#ifdef HAVE_PRI + if (argc == 4) { + if ((trunkgroup = atoi(argv[3])) < 1) + return RESULT_SHOWUSAGE; + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].trunkgroup == trunkgroup) { + pri = pris + x; + break; + } + } + if (pri) { + start = pri->crvs; + lock = &pri->lock; + } else { + ast_cli(fd, "No such trunk group %d\n", trunkgroup); + return RESULT_FAILURE; + } + } else +#endif + if (argc != 3) + return RESULT_SHOWUSAGE; + + ast_mutex_lock(lock); +#ifdef HAVE_PRI + ast_cli(fd, FORMAT2, pri ? "CRV" : "Chan", "Extension", "Context", "Language", "MOH Interpret"); +#else + ast_cli(fd, FORMAT2, "Chan", "Extension", "Context", "Language", "MOH Interpret"); +#endif + + tmp = start; + while (tmp) { + if (tmp->channel > 0) { + snprintf(tmps, sizeof(tmps), "%d", tmp->channel); + } else + ast_copy_string(tmps, "pseudo", sizeof(tmps)); + ast_cli(fd, FORMAT, tmps, tmp->exten, tmp->context, tmp->language, tmp->mohinterpret); + tmp = tmp->next; + } + ast_mutex_unlock(lock); + return RESULT_SUCCESS; +#undef FORMAT +#undef FORMAT2 +} + +static int dahdi_show_channel(int fd, int argc, char **argv) +{ + int channel; + struct dahdi_pvt *tmp = NULL; + struct dahdi_confinfo ci; + struct dahdi_params ps; + int x; + ast_mutex_t *lock; + struct dahdi_pvt *start; +#ifdef HAVE_PRI + char *c; + int trunkgroup; + struct dahdi_pri *pri=NULL; +#endif + + lock = &iflock; + start = iflist; + + if (argc != 4) + return RESULT_SHOWUSAGE; +#ifdef HAVE_PRI + if ((c = strchr(argv[3], ':'))) { + if (sscanf(argv[3], "%d:%d", &trunkgroup, &channel) != 2) + return RESULT_SHOWUSAGE; + if ((trunkgroup < 1) || (channel < 1)) + return RESULT_SHOWUSAGE; + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].trunkgroup == trunkgroup) { + pri = pris + x; + break; + } + } + if (pri) { + start = pri->crvs; + lock = &pri->lock; + } else { + ast_cli(fd, "No such trunk group %d\n", trunkgroup); + return RESULT_FAILURE; + } + } else +#endif + channel = atoi(argv[3]); + + ast_mutex_lock(lock); + tmp = start; + while (tmp) { + if (tmp->channel == channel) { +#ifdef HAVE_PRI + if (pri) + ast_cli(fd, "Trunk/CRV: %d/%d\n", trunkgroup, tmp->channel); + else +#endif + ast_cli(fd, "Channel: %d\n", tmp->channel); + ast_cli(fd, "File Descriptor: %d\n", tmp->subs[SUB_REAL].dfd); + ast_cli(fd, "Span: %d\n", tmp->span); + ast_cli(fd, "Extension: %s\n", tmp->exten); + ast_cli(fd, "Dialing: %s\n", tmp->dialing ? "yes" : "no"); + ast_cli(fd, "Context: %s\n", tmp->context); + ast_cli(fd, "Caller ID: %s\n", tmp->cid_num); + ast_cli(fd, "Calling TON: %d\n", tmp->cid_ton); + ast_cli(fd, "Caller ID name: %s\n", tmp->cid_name); + ast_cli(fd, "Destroy: %d\n", tmp->destroy); + ast_cli(fd, "InAlarm: %d\n", tmp->inalarm); + ast_cli(fd, "Signalling Type: %s\n", sig2str(tmp->sig)); + ast_cli(fd, "Radio: %d\n", tmp->radio); + ast_cli(fd, "Owner: %s\n", tmp->owner ? tmp->owner->name : "<None>"); + ast_cli(fd, "Real: %s%s%s\n", tmp->subs[SUB_REAL].owner ? tmp->subs[SUB_REAL].owner->name : "<None>", tmp->subs[SUB_REAL].inthreeway ? " (Confed)" : "", tmp->subs[SUB_REAL].linear ? " (Linear)" : ""); + ast_cli(fd, "Callwait: %s%s%s\n", tmp->subs[SUB_CALLWAIT].owner ? tmp->subs[SUB_CALLWAIT].owner->name : "<None>", tmp->subs[SUB_CALLWAIT].inthreeway ? " (Confed)" : "", tmp->subs[SUB_CALLWAIT].linear ? " (Linear)" : ""); + ast_cli(fd, "Threeway: %s%s%s\n", tmp->subs[SUB_THREEWAY].owner ? tmp->subs[SUB_THREEWAY].owner->name : "<None>", tmp->subs[SUB_THREEWAY].inthreeway ? " (Confed)" : "", tmp->subs[SUB_THREEWAY].linear ? " (Linear)" : ""); + ast_cli(fd, "Confno: %d\n", tmp->confno); + ast_cli(fd, "Propagated Conference: %d\n", tmp->propconfno); + ast_cli(fd, "Real in conference: %d\n", tmp->inconference); + ast_cli(fd, "DSP: %s\n", tmp->dsp ? "yes" : "no"); + ast_cli(fd, "Relax DTMF: %s\n", tmp->dtmfrelax ? "yes" : "no"); + ast_cli(fd, "Dialing/CallwaitCAS: %d/%d\n", tmp->dialing, tmp->callwaitcas); + ast_cli(fd, "Default law: %s\n", tmp->law == DAHDI_LAW_MULAW ? "ulaw" : tmp->law == DAHDI_LAW_ALAW ? "alaw" : "unknown"); + ast_cli(fd, "Fax Handled: %s\n", tmp->faxhandled ? "yes" : "no"); + ast_cli(fd, "Pulse phone: %s\n", tmp->pulsedial ? "yes" : "no"); + ast_cli(fd, "Echo Cancellation: %d taps%s, currently %s\n", tmp->echocancel, tmp->echocanbridged ? "" : " unless TDM bridged", tmp->echocanon ? "ON" : "OFF"); + if (tmp->master) + ast_cli(fd, "Master Channel: %d\n", tmp->master->channel); + for (x = 0; x < MAX_SLAVES; x++) { + if (tmp->slaves[x]) + ast_cli(fd, "Slave Channel: %d\n", tmp->slaves[x]->channel); + } +#ifdef HAVE_PRI + if (tmp->pri) { + ast_cli(fd, "PRI Flags: "); + if (tmp->resetting) + ast_cli(fd, "Resetting "); + if (tmp->call) + ast_cli(fd, "Call "); + if (tmp->bearer) + ast_cli(fd, "Bearer "); + ast_cli(fd, "\n"); + if (tmp->logicalspan) + ast_cli(fd, "PRI Logical Span: %d\n", tmp->logicalspan); + else + ast_cli(fd, "PRI Logical Span: Implicit\n"); + } + +#endif + memset(&ci, 0, sizeof(ci)); + ps.channo = tmp->channel; + if (tmp->subs[SUB_REAL].dfd > -1) { + if (!ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GETCONF, &ci)) { + ast_cli(fd, "Actual Confinfo: Num/%d, Mode/0x%04x\n", ci.confno, ci.confmode); + } +#ifdef DAHDI_GETCONFMUTE + if (!ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GETCONFMUTE, &x)) { + ast_cli(fd, "Actual Confmute: %s\n", x ? "Yes" : "No"); + } +#endif + if (ioctl(tmp->subs[SUB_REAL].dfd, DAHDI_GET_PARAMS, &ps) < 0) { + ast_log(LOG_WARNING, "Failed to get parameters on channel %d: %s\n", tmp->channel, strerror(errno)); + } else { + ast_cli(fd, "Hookstate (FXS only): %s\n", ps.rxisoffhook ? "Offhook" : "Onhook"); + } + } + ast_mutex_unlock(lock); + return RESULT_SUCCESS; + } + tmp = tmp->next; + } + + ast_cli(fd, "Unable to find given channel %d\n", channel); + ast_mutex_unlock(lock); + return RESULT_FAILURE; +} + +static char dahdi_show_cadences_usage[] = +"Usage: dahdi show cadences\n" +" Shows all cadences currently defined\n"; + +static int handle_dahdi_show_cadences(int fd, int argc, char *argv[]) +{ + int i, j; + for (i = 0; i < num_cadence; i++) { + char output[1024]; + char tmp[16], tmp2[64]; + snprintf(tmp, sizeof(tmp), "r%d: ", i + 1); + term_color(output, tmp, COLOR_GREEN, COLOR_BLACK, sizeof(output)); + + for (j = 0; j < 16; j++) { + if (cadences[i].ringcadence[j] == 0) + break; + snprintf(tmp, sizeof(tmp), "%d", cadences[i].ringcadence[j]); + if (cidrings[i] * 2 - 1 == j) + term_color(tmp2, tmp, COLOR_MAGENTA, COLOR_BLACK, sizeof(tmp2) - 1); + else + term_color(tmp2, tmp, COLOR_GREEN, COLOR_BLACK, sizeof(tmp2) - 1); + if (j != 0) + strncat(output, ",", sizeof(output) - strlen(output) - 1); + strncat(output, tmp2, sizeof(output) - strlen(output) - 1); + } + ast_cli(fd,"%s\n",output); + } + return 0; +} + +/* Based on irqmiss.c */ +static int dahdi_show_status(int fd, int argc, char *argv[]) { + #define FORMAT "%-40.40s %-10.10s %-10d %-10d %-10d\n" + #define FORMAT2 "%-40.40s %-10.10s %-10.10s %-10.10s %-10.10s\n" + + int span; + int res; + char alarms[50]; + + int ctl; + struct dahdi_spaninfo s; + + if ((ctl = open(DAHDI_FILE_CTL, O_RDWR)) < 0) { + ast_log(LOG_WARNING, "Unable to open " DAHDI_FILE_CTL ": %s\n", strerror(errno)); + ast_cli(fd, "No " DAHDI_NAME " interface found.\n"); + return RESULT_FAILURE; + } + ast_cli(fd, FORMAT2, "Description", "Alarms", "IRQ", "bpviol", "CRC4"); + + for (span = 1; span < DAHDI_MAX_SPANS; ++span) { + s.spanno = span; + res = ioctl(ctl, DAHDI_SPANSTAT, &s); + if (res) { + continue; + } + alarms[0] = '\0'; + if (s.alarms > 0) { + if (s.alarms & DAHDI_ALARM_BLUE) + strcat(alarms, "BLU/"); + if (s.alarms & DAHDI_ALARM_YELLOW) + strcat(alarms, "YEL/"); + if (s.alarms & DAHDI_ALARM_RED) + strcat(alarms, "RED/"); + if (s.alarms & DAHDI_ALARM_LOOPBACK) + strcat(alarms, "LB/"); + if (s.alarms & DAHDI_ALARM_RECOVER) + strcat(alarms, "REC/"); + if (s.alarms & DAHDI_ALARM_NOTOPEN) + strcat(alarms, "NOP/"); + if (!strlen(alarms)) + strcat(alarms, "UUU/"); + if (strlen(alarms)) { + /* Strip trailing / */ + alarms[strlen(alarms) - 1] = '\0'; + } + } else { + if (s.numchans) + strcpy(alarms, "OK"); + else + strcpy(alarms, "UNCONFIGURED"); + } + + ast_cli(fd, FORMAT, s.desc, alarms, s.irqmisses, s.bpvcount, s.crc4count); + } + close(ctl); + + return RESULT_SUCCESS; +#undef FORMAT +#undef FORMAT2 +} + +static char show_channels_usage[] = + "Usage: dahdi show channels\n" + " Shows a list of available channels\n"; + +static char show_channel_usage[] = + "Usage: dahdi show channel <chan num>\n" + " Detailed information about a given channel\n"; + +static char dahdi_show_status_usage[] = + "Usage: dahdi show status\n" + " Shows a list of DAHDI cards with status\n"; + +static char destroy_channel_usage[] = + "Usage: dahdi destroy channel <chan num>\n" + " DON'T USE THIS UNLESS YOU KNOW WHAT YOU ARE DOING. Immediately removes a given channel, whether it is in use or not\n"; + +static char dahdi_restart_usage[] = + "Usage: dahdi restart\n" + " Restarts the DAHDI channels: destroys them all and then\n" + " re-reads them from chan_dahdi.conf.\n" + " Note that this will STOP any running CALL on DAHDI channels.\n" + ""; + +static struct ast_cli_entry cli_zap_show_cadences_deprecated = { + { "zap", "show", "cadences", NULL }, + handle_dahdi_show_cadences, NULL, + NULL }; + +static struct ast_cli_entry cli_zap_show_channels_deprecated = { + { "zap", "show", "channels", NULL }, + dahdi_show_channels, NULL, + NULL }; + +static struct ast_cli_entry cli_zap_show_channel_deprecated = { + { "zap", "show", "channel", NULL }, + dahdi_show_channel, NULL, + NULL }; + +static struct ast_cli_entry cli_zap_destroy_channel_deprecated = { + { "zap", "destroy", "channel", NULL }, + dahdi_destroy_channel, NULL, + NULL }; + +static struct ast_cli_entry cli_zap_restart_deprecated = { + { "zap", "restart", NULL }, + dahdi_restart_cmd, NULL, + NULL }; + +static struct ast_cli_entry cli_zap_show_status_deprecated = { + { "zap", "show", "status", NULL }, + dahdi_show_status, NULL, + NULL }; + +static struct ast_cli_entry dahdi_cli[] = { + { { "dahdi", "show", "cadences", NULL }, + handle_dahdi_show_cadences, "List cadences", + dahdi_show_cadences_usage, NULL, &cli_zap_show_cadences_deprecated }, + + { { "dahdi", "show", "channels", NULL}, + dahdi_show_channels, "Show active DAHDI channels", + show_channels_usage, NULL, &cli_zap_show_channels_deprecated }, + + { { "dahdi", "show", "channel", NULL}, + dahdi_show_channel, "Show information on a channel", + show_channel_usage, NULL, &cli_zap_show_channel_deprecated }, + + { { "dahdi", "destroy", "channel", NULL}, + dahdi_destroy_channel, "Destroy a channel", + destroy_channel_usage, NULL, &cli_zap_destroy_channel_deprecated }, + + { { "dahdi", "restart", NULL}, + dahdi_restart_cmd, "Fully restart DAHDI channels", + dahdi_restart_usage, NULL, &cli_zap_restart_deprecated }, + + { { "dahdi", "show", "status", NULL}, + dahdi_show_status, "Show all DAHDI cards status", + dahdi_show_status_usage, NULL, &cli_zap_show_status_deprecated }, +}; + +#define TRANSFER 0 +#define HANGUP 1 + +static int dahdi_fake_event(struct dahdi_pvt *p, int mode) +{ + if (p) { + switch (mode) { + case TRANSFER: + p->fake_event = DAHDI_EVENT_WINKFLASH; + break; + case HANGUP: + p->fake_event = DAHDI_EVENT_ONHOOK; + break; + default: + ast_log(LOG_WARNING, "I don't know how to handle transfer event with this: %d on channel %s\n",mode, p->owner->name); + } + } + return 0; +} +static struct dahdi_pvt *find_channel(int channel) +{ + struct dahdi_pvt *p = iflist; + while (p) { + if (p->channel == channel) { + break; + } + p = p->next; + } + return p; +} + +#define local_astman_ack(s, m, msg, zap) do { if (!zap) astman_send_ack(s, m, "DAHDI" msg); else astman_send_ack(s, m, "Zap" msg); } while (0) +#define local_astman_header(m, hdr, zap) astman_get_header(m, (!zap) ? "DAHDI" hdr : "Zap" hdr) + +static int __action_dnd(struct mansession *s, const struct message *m, int zap_mode, int dnd) +{ + struct dahdi_pvt *p = NULL; + const char *channel = local_astman_header(m, "Channel", zap_mode); + + if (ast_strlen_zero(channel)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (!(p = find_channel(atoi(channel)))) { + astman_send_error(s, m, "No such channel"); + return 0; + } + p->dnd = dnd; + local_astman_ack(s, m, "DND", zap_mode); + + return 0; +} + +static int zap_action_dndon(struct mansession *s, const struct message *m) +{ + return __action_dnd(s, m, 1, 1); +} + +static int dahdi_action_dndon(struct mansession *s, const struct message *m) +{ + return __action_dnd(s, m, 0, 1); +} + +static int zap_action_dndoff(struct mansession *s, const struct message *m) +{ + return __action_dnd(s, m, 1, 0); +} + +static int dahdi_action_dndoff(struct mansession *s, const struct message *m) +{ + return __action_dnd(s, m, 0, 0); +} + +static int __action_transfer(struct mansession *s, const struct message *m, int zap_mode) +{ + struct dahdi_pvt *p = NULL; + const char *channel = local_astman_header(m, "Channel", zap_mode); + + if (ast_strlen_zero(channel)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (!(p = find_channel(atoi(channel)))) { + astman_send_error(s, m, "No such channel"); + return 0; + } + dahdi_fake_event(p,TRANSFER); + local_astman_ack(s, m, "Transfer", zap_mode); + + return 0; +} + +static int zap_action_transfer(struct mansession *s, const struct message *m) +{ + return __action_transfer(s, m, 1); +} + +static int dahdi_action_transfer(struct mansession *s, const struct message *m) +{ + return __action_transfer(s, m, 0); +} + +static int __action_transferhangup(struct mansession *s, const struct message *m, int zap_mode) +{ + struct dahdi_pvt *p = NULL; + const char *channel = local_astman_header(m, "Channel", zap_mode); + + if (ast_strlen_zero(channel)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (!(p = find_channel(atoi(channel)))) { + astman_send_error(s, m, "No such channel"); + return 0; + } + dahdi_fake_event(p, HANGUP); + local_astman_ack(s, m, "Hangup", zap_mode); + return 0; +} + +static int zap_action_transferhangup(struct mansession *s, const struct message *m) +{ + return __action_transferhangup(s, m, 1); +} + +static int dahdi_action_transferhangup(struct mansession *s, const struct message *m) +{ + return __action_transferhangup(s, m, 0); +} + +static int __action_dialoffhook(struct mansession *s, const struct message *m, int zap_mode) +{ + struct dahdi_pvt *p = NULL; + const char *channel = local_astman_header(m, "Channel", zap_mode); + const char *number = astman_get_header(m, "Number"); + int i; + + if (ast_strlen_zero(channel)) { + astman_send_error(s, m, "No channel specified"); + return 0; + } + if (ast_strlen_zero(number)) { + astman_send_error(s, m, "No number specified"); + return 0; + } + if (!(p = find_channel(atoi(channel)))) { + astman_send_error(s, m, "No such channel"); + return 0; + } + if (!p->owner) { + astman_send_error(s, m, "Channel does not have an owner"); + return 0; + } + for (i = 0; i < strlen(number); i++) { + struct ast_frame f = { AST_FRAME_DTMF, number[i] }; + + dahdi_queue_frame(p, &f, NULL); + } + local_astman_ack(s, m, "DialOffHook", zap_mode); + + return 0; +} + +static int zap_action_dialoffhook(struct mansession *s, const struct message *m) +{ + return __action_dialoffhook(s, m, 1); +} + +static int dahdi_action_dialoffhook(struct mansession *s, const struct message *m) +{ + return __action_dialoffhook(s, m, 0); +} + +static int __action_showchannels(struct mansession *s, const struct message *m, int zap_mode) +{ + struct dahdi_pvt *tmp = NULL; + const char *id = astman_get_header(m, "ActionID"); + char idText[256] = ""; + + local_astman_ack(s, m, " channel status will follow", zap_mode); + if (!ast_strlen_zero(id)) + snprintf(idText, sizeof(idText) - 1, "ActionID: %s\r\n", id); + + ast_mutex_lock(&iflock); + + tmp = iflist; + while (tmp) { + if (tmp->channel > 0) { + int alarm = get_alarms(tmp); + astman_append(s, + "Event: %sShowChannels\r\n" + "Channel: %d\r\n" + "Signalling: %s\r\n" + "Context: %s\r\n" + "DND: %s\r\n" + "Alarm: %s\r\n" + "%s" + "\r\n", + dahdi_chan_name, + tmp->channel, sig2str(tmp->sig), tmp->context, + tmp->dnd ? "Enabled" : "Disabled", + alarm2str(alarm), idText); + } + + tmp = tmp->next; + } + + ast_mutex_unlock(&iflock); + + astman_append(s, + "Event: %sShowChannelsComplete\r\n" + "%s" + "\r\n", + dahdi_chan_name, + idText); + return 0; +} + +static int zap_action_showchannels(struct mansession *s, const struct message *m) +{ + return __action_showchannels(s, m, 1); +} + +static int dahdi_action_showchannels(struct mansession *s, const struct message *m) +{ + return __action_showchannels(s, m, 0); +} + +static int __action_restart(struct mansession *s, const struct message *m, int zap_mode) +{ + if (dahdi_restart() != 0) { + if (zap_mode) { + astman_send_error(s, m, "Failed to restart Zap"); + } else { + astman_send_error(s, m, "Failed to restart DAHDI"); + } + return 1; + } + local_astman_ack(s, m, "Restart: Success", zap_mode); + return 0; +} + +static int zap_action_restart(struct mansession *s, const struct message *m) +{ + return __action_restart(s, m, 1); +} + +static int dahdi_action_restart(struct mansession *s, const struct message *m) +{ + return __action_restart(s, m, 0); +} + +#define local_astman_unregister(a) do { \ + if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { \ + ast_manager_unregister("DAHDI" a); \ + } \ + ast_manager_unregister("Zap" a); \ + } while (0) + +static int __unload_module(void) +{ + struct dahdi_pvt *p; + +#ifdef HAVE_PRI + int i, j; + for (i = 0; i < NUM_SPANS; i++) { + if (pris[i].master != AST_PTHREADT_NULL) + pthread_cancel(pris[i].master); + } + ast_cli_unregister_multiple(dahdi_pri_cli, sizeof(dahdi_pri_cli) / sizeof(struct ast_cli_entry)); + + if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { + ast_unregister_application(dahdi_send_keypad_facility_app); + } + ast_unregister_application(zap_send_keypad_facility_app); +#endif + ast_cli_unregister_multiple(dahdi_cli, sizeof(dahdi_cli) / sizeof(struct ast_cli_entry)); + local_astman_unregister("DialOffHook"); + local_astman_unregister("Hangup"); + local_astman_unregister("Transfer"); + local_astman_unregister("DNDoff"); + local_astman_unregister("DNDon"); + local_astman_unregister("ShowChannels"); + local_astman_unregister("Restart"); + ast_channel_unregister(chan_tech); + ast_mutex_lock(&iflock); + /* Hangup all interfaces if they have an owner */ + p = iflist; + while (p) { + if (p->owner) + ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD); + p = p->next; + } + ast_mutex_unlock(&iflock); + ast_mutex_lock(&monlock); + if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) { + pthread_cancel(monitor_thread); + pthread_kill(monitor_thread, SIGURG); + pthread_join(monitor_thread, NULL); + } + monitor_thread = AST_PTHREADT_STOP; + ast_mutex_unlock(&monlock); + + destroy_all_channels(); +#ifdef HAVE_PRI + for (i = 0; i < NUM_SPANS; i++) { + if (pris[i].master && (pris[i].master != AST_PTHREADT_NULL)) + pthread_join(pris[i].master, NULL); + for (j = 0; j < NUM_DCHANS; j++) { + dahdi_close_pri_fd(&(pris[i]), j); + } + } +#endif + ast_cond_destroy(&ss_thread_complete); + return 0; +} + +static int unload_module(void) +{ +#ifdef HAVE_PRI + int y; + for (y = 0; y < NUM_SPANS; y++) + ast_mutex_destroy(&pris[y].lock); +#endif + return __unload_module(); +} + +static int build_channels(struct dahdi_chan_conf *conf, int iscrv, const char *value, int reload, int lineno, int *found_pseudo) +{ + char *c, *chan; + int x, start, finish; + struct dahdi_pvt *tmp; +#ifdef HAVE_PRI + struct dahdi_pri *pri; + int trunkgroup, y; +#endif + + if ((reload == 0) && (conf->chan.sig < 0)) { + ast_log(LOG_ERROR, "Signalling must be specified before any channels are.\n"); + return -1; + } + + c = ast_strdupa(value); + +#ifdef HAVE_PRI + pri = NULL; + if (iscrv) { + if (sscanf(c, "%d:%n", &trunkgroup, &y) != 1) { + ast_log(LOG_WARNING, "CRV must begin with trunkgroup followed by a colon at line %d\n", lineno); + return -1; + } + if (trunkgroup < 1) { + ast_log(LOG_WARNING, "CRV trunk group must be a positive number at line %d\n", lineno); + return -1; + } + c += y; + for (y = 0; y < NUM_SPANS; y++) { + if (pris[y].trunkgroup == trunkgroup) { + pri = pris + y; + break; + } + } + if (!pri) { + ast_log(LOG_WARNING, "No such trunk group %d at CRV declaration at line %d\n", trunkgroup, lineno); + return -1; + } + } +#endif + + while ((chan = strsep(&c, ","))) { + if (sscanf(chan, "%d-%d", &start, &finish) == 2) { + /* Range */ + } else if (sscanf(chan, "%d", &start)) { + /* Just one */ + finish = start; + } else if (!strcasecmp(chan, "pseudo")) { + finish = start = CHAN_PSEUDO; + if (found_pseudo) + *found_pseudo = 1; + } else { + ast_log(LOG_ERROR, "Syntax error parsing '%s' at '%s'\n", value, chan); + return -1; + } + if (finish < start) { + ast_log(LOG_WARNING, "Sillyness: %d < %d\n", start, finish); + x = finish; + finish = start; + start = x; + } + + for (x = start; x <= finish; x++) { +#ifdef HAVE_PRI + tmp = mkintf(x, conf, pri, reload); +#else + tmp = mkintf(x, conf, NULL, reload); +#endif + + if (tmp) { + if (option_verbose > 2) { +#ifdef HAVE_PRI + if (pri) + ast_verbose(VERBOSE_PREFIX_3 "%s CRV %d:%d, %s signalling\n", reload ? "Reconfigured" : "Registered", trunkgroup, x, sig2str(tmp->sig)); + else +#endif + ast_verbose(VERBOSE_PREFIX_3 "%s channel %d, %s signalling\n", reload ? "Reconfigured" : "Registered", x, sig2str(tmp->sig)); + } + } else { + ast_log(LOG_ERROR, "Unable to %s channel '%s'\n", + (reload == 1) ? "reconfigure" : "register", value); + return -1; + } + } + } + + return 0; +} + +/** The length of the parameters list of 'dahdichan'. + * \todo Move definition of MAX_CHANLIST_LEN to a proper place. */ +#define MAX_CHANLIST_LEN 80 +static int process_dahdi(struct dahdi_chan_conf *confp, const char *cat, struct ast_variable *v, int reload, int skipchannels) +{ + struct dahdi_pvt *tmp; + int y; + int found_pseudo = 0; + char dahdichan[MAX_CHANLIST_LEN] = {}; + + for (; v; v = v->next) { + if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) + continue; + + /* Create the interface list */ + if (!strcasecmp(v->name, "channel") +#ifdef HAVE_PRI + || !strcasecmp(v->name, "crv") +#endif + ) { + int iscrv; + if (skipchannels) + continue; + iscrv = !strcasecmp(v->name, "crv"); + if (build_channels(confp, iscrv, v->value, reload, v->lineno, &found_pseudo)) + return -1; + } else if (!strcasecmp(v->name, "buffers")) { + int res; + char policy[21] = ""; + + res = sscanf(v->value, "%d,%20s", &confp->chan.buf_no, policy); + if (res != 2) { + ast_log(LOG_WARNING, "Parsing buffers option data failed, using defaults.\n"); + confp->chan.buf_no = numbufs; + continue; + } + if (confp->chan.buf_no < 0) + confp->chan.buf_no = numbufs; + if (!strcasecmp(policy, "full")) { + confp->chan.buf_policy = DAHDI_POLICY_WHEN_FULL; + } else if (!strcasecmp(policy, "immediate")) { + confp->chan.buf_policy = DAHDI_POLICY_IMMEDIATE; + } else { + ast_log(LOG_WARNING, "Invalid policy name given (%s).\n", policy); + } + } else if (!strcasecmp(v->name, "zapchan") || !strcasecmp(v->name, "dahdichan")) { + ast_copy_string(dahdichan, v->value, sizeof(dahdichan)); + if (v->name[0] == 'z' || v->name[0] == 'Z') { + ast_log(LOG_WARNING, "Option zapchan has been deprecated in favor of dahdichan (found in [%s])\n", cat); + } + } else if (!strcasecmp(v->name, "usedistinctiveringdetection")) { + if (ast_true(v->value)) + confp->chan.usedistinctiveringdetection = 1; + } else if (!strcasecmp(v->name, "distinctiveringaftercid")) { + if (ast_true(v->value)) + distinctiveringaftercid = 1; + } else if (!strcasecmp(v->name, "dring1context")) { + ast_copy_string(drings.ringContext[0].contextData, v->value, sizeof(drings.ringContext[0].contextData)); + } else if (!strcasecmp(v->name, "dring2context")) { + ast_copy_string(drings.ringContext[1].contextData, v->value, sizeof(drings.ringContext[1].contextData)); + } else if (!strcasecmp(v->name, "dring3context")) { + ast_copy_string(drings.ringContext[2].contextData, v->value, sizeof(drings.ringContext[2].contextData)); + } else if (!strcasecmp(v->name, "dring1")) { + sscanf(v->value, "%d,%d,%d", &drings.ringnum[0].ring[0], &drings.ringnum[0].ring[1], &drings.ringnum[0].ring[2]); + } else if (!strcasecmp(v->name, "dring2")) { + sscanf(v->value, "%d,%d,%d", &drings.ringnum[1].ring[0], &drings.ringnum[1].ring[1], &drings.ringnum[1].ring[2]); + } else if (!strcasecmp(v->name, "dring3")) { + sscanf(v->value, "%d,%d,%d", &drings.ringnum[2].ring[0], &drings.ringnum[2].ring[1], &drings.ringnum[2].ring[2]); + } else if (!strcasecmp(v->name, "usecallerid")) { + confp->chan.use_callerid = ast_true(v->value); + } else if (!strcasecmp(v->name, "cidsignalling")) { + if (!strcasecmp(v->value, "bell")) + confp->chan.cid_signalling = CID_SIG_BELL; + else if (!strcasecmp(v->value, "v23")) + confp->chan.cid_signalling = CID_SIG_V23; + else if (!strcasecmp(v->value, "dtmf")) + confp->chan.cid_signalling = CID_SIG_DTMF; + else if (!strcasecmp(v->value, "smdi")) + confp->chan.cid_signalling = CID_SIG_SMDI; + else if (!strcasecmp(v->value, "v23_jp")) + confp->chan.cid_signalling = CID_SIG_V23_JP; + else if (ast_true(v->value)) + confp->chan.cid_signalling = CID_SIG_BELL; + } else if (!strcasecmp(v->name, "cidstart")) { + if (!strcasecmp(v->value, "ring")) + confp->chan.cid_start = CID_START_RING; + else if (!strcasecmp(v->value, "polarity")) + confp->chan.cid_start = CID_START_POLARITY; + else if (ast_true(v->value)) + confp->chan.cid_start = CID_START_RING; + } else if (!strcasecmp(v->name, "threewaycalling")) { + confp->chan.threewaycalling = ast_true(v->value); + } else if (!strcasecmp(v->name, "cancallforward")) { + confp->chan.cancallforward = ast_true(v->value); + } else if (!strcasecmp(v->name, "relaxdtmf")) { + if (ast_true(v->value)) + confp->chan.dtmfrelax = DSP_DIGITMODE_RELAXDTMF; + else + confp->chan.dtmfrelax = 0; + } else if (!strcasecmp(v->name, "mailbox")) { + ast_copy_string(confp->chan.mailbox, v->value, sizeof(confp->chan.mailbox)); + } else if (!strcasecmp(v->name, "hasvoicemail")) { + if (ast_true(v->value) && ast_strlen_zero(confp->chan.mailbox)) { + ast_copy_string(confp->chan.mailbox, cat, sizeof(confp->chan.mailbox)); + } + } else if (!strcasecmp(v->name, "adsi")) { + confp->chan.adsi = ast_true(v->value); + } else if (!strcasecmp(v->name, "usesmdi")) { + confp->chan.use_smdi = ast_true(v->value); + } else if (!strcasecmp(v->name, "smdiport")) { + ast_copy_string(confp->smdi_port, v->value, sizeof(confp->smdi_port)); + } else if (!strcasecmp(v->name, "transfer")) { + confp->chan.transfer = ast_true(v->value); + } else if (!strcasecmp(v->name, "canpark")) { + confp->chan.canpark = ast_true(v->value); + } else if (!strcasecmp(v->name, "echocancelwhenbridged")) { + confp->chan.echocanbridged = ast_true(v->value); + } else if (!strcasecmp(v->name, "busydetect")) { + confp->chan.busydetect = ast_true(v->value); + } else if (!strcasecmp(v->name, "busycount")) { + confp->chan.busycount = atoi(v->value); + } else if (!strcasecmp(v->name, "busypattern")) { + if (sscanf(v->value, "%d,%d", &confp->chan.busy_tonelength, &confp->chan.busy_quietlength) != 2) { + ast_log(LOG_ERROR, "busypattern= expects busypattern=tonelength,quietlength\n"); + } + } else if (!strcasecmp(v->name, "callprogress")) { + if (ast_true(v->value)) + confp->chan.callprogress |= 1; + else + confp->chan.callprogress &= ~1; + } else if (!strcasecmp(v->name, "faxdetect")) { + if (!strcasecmp(v->value, "incoming")) { + confp->chan.callprogress |= 4; + confp->chan.callprogress &= ~2; + } else if (!strcasecmp(v->value, "outgoing")) { + confp->chan.callprogress &= ~4; + confp->chan.callprogress |= 2; + } else if (!strcasecmp(v->value, "both") || ast_true(v->value)) + confp->chan.callprogress |= 6; + else + confp->chan.callprogress &= ~6; + } else if (!strcasecmp(v->name, "echocancel")) { + if (!ast_strlen_zero(v->value)) { + y = atoi(v->value); + } else + y = 0; + if ((y == 32) || (y == 64) || (y == 128) || (y == 256) || (y == 512) || (y == 1024)) + confp->chan.echocancel = y; + else { + confp->chan.echocancel = ast_true(v->value); + if (confp->chan.echocancel) + confp->chan.echocancel=128; + } + } else if (!strcasecmp(v->name, "echotraining")) { + if (sscanf(v->value, "%d", &y) == 1) { + if ((y < 10) || (y > 4000)) { + ast_log(LOG_WARNING, "Echo training time must be within the range of 10 to 4000 ms at line %d\n", v->lineno); + } else { + confp->chan.echotraining = y; + } + } else if (ast_true(v->value)) { + confp->chan.echotraining = 400; + } else + confp->chan.echotraining = 0; + } else if (!strcasecmp(v->name, "hidecallerid")) { + confp->chan.hidecallerid = ast_true(v->value); + } else if (!strcasecmp(v->name, "hidecalleridname")) { + confp->chan.hidecalleridname = ast_true(v->value); + } else if (!strcasecmp(v->name, "pulsedial")) { + confp->chan.pulse = ast_true(v->value); + } else if (!strcasecmp(v->name, "callreturn")) { + confp->chan.callreturn = ast_true(v->value); + } else if (!strcasecmp(v->name, "callwaiting")) { + confp->chan.callwaiting = ast_true(v->value); + } else if (!strcasecmp(v->name, "callwaitingcallerid")) { + confp->chan.callwaitingcallerid = ast_true(v->value); + } else if (!strcasecmp(v->name, "context")) { + ast_copy_string(confp->chan.context, v->value, sizeof(confp->chan.context)); + } else if (!strcasecmp(v->name, "language")) { + ast_copy_string(confp->chan.language, v->value, sizeof(confp->chan.language)); + } else if (!strcasecmp(v->name, "progzone")) { + ast_copy_string(progzone, v->value, sizeof(progzone)); + } else if (!strcasecmp(v->name, "mohinterpret") + ||!strcasecmp(v->name, "musiconhold") || !strcasecmp(v->name, "musicclass")) { + ast_copy_string(confp->chan.mohinterpret, v->value, sizeof(confp->chan.mohinterpret)); + } else if (!strcasecmp(v->name, "mohsuggest")) { + ast_copy_string(confp->chan.mohsuggest, v->value, sizeof(confp->chan.mohsuggest)); + } else if (!strcasecmp(v->name, "stripmsd")) { + confp->chan.stripmsd = atoi(v->value); + } else if (!strcasecmp(v->name, "jitterbuffers")) { + numbufs = atoi(v->value); + } else if (!strcasecmp(v->name, "group")) { + confp->chan.group = ast_get_group(v->value); + } else if (!strcasecmp(v->name, "callgroup")) { + confp->chan.callgroup = ast_get_group(v->value); + } else if (!strcasecmp(v->name, "pickupgroup")) { + confp->chan.pickupgroup = ast_get_group(v->value); + } else if (!strcasecmp(v->name, "immediate")) { + confp->chan.immediate = ast_true(v->value); + } else if (!strcasecmp(v->name, "transfertobusy")) { + confp->chan.transfertobusy = ast_true(v->value); + } else if (!strcasecmp(v->name, "rxgain")) { + if (sscanf(v->value, "%f", &confp->chan.rxgain) != 1) { + ast_log(LOG_WARNING, "Invalid rxgain: %s\n", v->value); + } + } else if (!strcasecmp(v->name, "txgain")) { + if (sscanf(v->value, "%f", &confp->chan.txgain) != 1) { + ast_log(LOG_WARNING, "Invalid txgain: %s\n", v->value); + } + } else if (!strcasecmp(v->name, "tonezone")) { + if (sscanf(v->value, "%d", &confp->chan.tonezone) != 1) { + ast_log(LOG_WARNING, "Invalid tonezone: %s\n", v->value); + } + } else if (!strcasecmp(v->name, "callerid")) { + if (!strcasecmp(v->value, "asreceived")) { + confp->chan.cid_num[0] = '\0'; + confp->chan.cid_name[0] = '\0'; + } else { + ast_callerid_split(v->value, confp->chan.cid_name, sizeof(confp->chan.cid_name), confp->chan.cid_num, sizeof(confp->chan.cid_num)); + } + } else if (!strcasecmp(v->name, "fullname")) { + ast_copy_string(confp->chan.cid_name, v->value, sizeof(confp->chan.cid_name)); + } else if (!strcasecmp(v->name, "cid_number")) { + ast_copy_string(confp->chan.cid_num, v->value, sizeof(confp->chan.cid_num)); + } else if (!strcasecmp(v->name, "useincomingcalleridondahditransfer") || !strcasecmp(v->name, "useincomingcalleridonzaptransfer")) { + confp->chan.dahditrcallerid = ast_true(v->value); + if (strstr(v->name, "zap")) { + ast_log(LOG_WARNING, "Option useincomingcalleridonzaptransfer has been deprecated in favor of useincomingcalleridondahditransfer (in [%s]).\n", cat); + } + } else if (!strcasecmp(v->name, "restrictcid")) { + confp->chan.restrictcid = ast_true(v->value); + } else if (!strcasecmp(v->name, "usecallingpres")) { + confp->chan.use_callingpres = ast_true(v->value); + } else if (!strcasecmp(v->name, "accountcode")) { + ast_copy_string(confp->chan.accountcode, v->value, sizeof(confp->chan.accountcode)); + } else if (!strcasecmp(v->name, "amaflags")) { + y = ast_cdr_amaflags2int(v->value); + if (y < 0) + ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno); + else + confp->chan.amaflags = y; + } else if (!strcasecmp(v->name, "polarityonanswerdelay")) { + confp->chan.polarityonanswerdelay = atoi(v->value); + } else if (!strcasecmp(v->name, "answeronpolarityswitch")) { + confp->chan.answeronpolarityswitch = ast_true(v->value); + } else if (!strcasecmp(v->name, "hanguponpolarityswitch")) { + confp->chan.hanguponpolarityswitch = ast_true(v->value); + } else if (!strcasecmp(v->name, "sendcalleridafter")) { + confp->chan.sendcalleridafter = atoi(v->value); + } else if (reload != 1){ + if (!strcasecmp(v->name, "signalling")) { + confp->chan.outsigmod = -1; + if (!strcasecmp(v->value, "em")) { + confp->chan.sig = SIG_EM; + } else if (!strcasecmp(v->value, "em_e1")) { + confp->chan.sig = SIG_EM_E1; + } else if (!strcasecmp(v->value, "em_w")) { + confp->chan.sig = SIG_EMWINK; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxs_ls")) { + confp->chan.sig = SIG_FXSLS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxs_gs")) { + confp->chan.sig = SIG_FXSGS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxs_ks")) { + confp->chan.sig = SIG_FXSKS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxo_ls")) { + confp->chan.sig = SIG_FXOLS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxo_gs")) { + confp->chan.sig = SIG_FXOGS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxo_ks")) { + confp->chan.sig = SIG_FXOKS; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fxs_rx")) { + confp->chan.sig = SIG_FXSKS; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "fxo_rx")) { + confp->chan.sig = SIG_FXOLS; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "fxs_tx")) { + confp->chan.sig = SIG_FXSLS; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "fxo_tx")) { + confp->chan.sig = SIG_FXOGS; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "em_rx")) { + confp->chan.sig = SIG_EM; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "em_tx")) { + confp->chan.sig = SIG_EM; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "em_rxtx")) { + confp->chan.sig = SIG_EM; + confp->chan.radio = 2; + } else if (!strcasecmp(v->value, "em_txrx")) { + confp->chan.sig = SIG_EM; + confp->chan.radio = 2; + } else if (!strcasecmp(v->value, "sf")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf_w")) { + confp->chan.sig = SIG_SFWINK; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf_featd")) { + confp->chan.sig = SIG_FEATD; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf_featdmf")) { + confp->chan.sig = SIG_FEATDMF; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf_featb")) { + confp->chan.sig = SIG_SF_FEATB; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "sf_rx")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "sf_tx")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 1; + } else if (!strcasecmp(v->value, "sf_rxtx")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 2; + } else if (!strcasecmp(v->value, "sf_txrx")) { + confp->chan.sig = SIG_SF; + confp->chan.radio = 2; + } else if (!strcasecmp(v->value, "featd")) { + confp->chan.sig = SIG_FEATD; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "featdmf")) { + confp->chan.sig = SIG_FEATDMF; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "featdmf_ta")) { + confp->chan.sig = SIG_FEATDMF_TA; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "e911")) { + confp->chan.sig = SIG_E911; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fgccama")) { + confp->chan.sig = SIG_FGC_CAMA; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "fgccamamf")) { + confp->chan.sig = SIG_FGC_CAMAMF; + confp->chan.radio = 0; + } else if (!strcasecmp(v->value, "featb")) { + confp->chan.sig = SIG_FEATB; + confp->chan.radio = 0; +#ifdef HAVE_PRI + } else if (!strcasecmp(v->value, "pri_net")) { + confp->chan.radio = 0; + confp->chan.sig = SIG_PRI; + confp->pri.nodetype = PRI_NETWORK; + } else if (!strcasecmp(v->value, "pri_cpe")) { + confp->chan.sig = SIG_PRI; + confp->chan.radio = 0; + confp->pri.nodetype = PRI_CPE; + } else if (!strcasecmp(v->value, "gr303fxoks_net")) { + confp->chan.sig = SIG_GR303FXOKS; + confp->chan.radio = 0; + confp->pri.nodetype = PRI_NETWORK; + } else if (!strcasecmp(v->value, "gr303fxsks_cpe")) { + confp->chan.sig = SIG_GR303FXSKS; + confp->chan.radio = 0; + confp->pri.nodetype = PRI_CPE; +#endif + } else { + ast_log(LOG_ERROR, "Unknown signalling method '%s'\n", v->value); + } + } else if (!strcasecmp(v->name, "outsignalling")) { + if (!strcasecmp(v->value, "em")) { + confp->chan.outsigmod = SIG_EM; + } else if (!strcasecmp(v->value, "em_e1")) { + confp->chan.outsigmod = SIG_EM_E1; + } else if (!strcasecmp(v->value, "em_w")) { + confp->chan.outsigmod = SIG_EMWINK; + } else if (!strcasecmp(v->value, "sf")) { + confp->chan.outsigmod = SIG_SF; + } else if (!strcasecmp(v->value, "sf_w")) { + confp->chan.outsigmod = SIG_SFWINK; + } else if (!strcasecmp(v->value, "sf_featd")) { + confp->chan.outsigmod = SIG_FEATD; + } else if (!strcasecmp(v->value, "sf_featdmf")) { + confp->chan.outsigmod = SIG_FEATDMF; + } else if (!strcasecmp(v->value, "sf_featb")) { + confp->chan.outsigmod = SIG_SF_FEATB; + } else if (!strcasecmp(v->value, "sf")) { + confp->chan.outsigmod = SIG_SF; + } else if (!strcasecmp(v->value, "featd")) { + confp->chan.outsigmod = SIG_FEATD; + } else if (!strcasecmp(v->value, "featdmf")) { + confp->chan.outsigmod = SIG_FEATDMF; + } else if (!strcasecmp(v->value, "featdmf_ta")) { + confp->chan.outsigmod = SIG_FEATDMF_TA; + } else if (!strcasecmp(v->value, "e911")) { + confp->chan.outsigmod = SIG_E911; + } else if (!strcasecmp(v->value, "fgccama")) { + confp->chan.outsigmod = SIG_FGC_CAMA; + } else if (!strcasecmp(v->value, "fgccamamf")) { + confp->chan.outsigmod = SIG_FGC_CAMAMF; + } else if (!strcasecmp(v->value, "featb")) { + confp->chan.outsigmod = SIG_FEATB; + } else { + ast_log(LOG_ERROR, "Unknown signalling method '%s'\n", v->value); + } +#ifdef HAVE_PRI + } else if (!strcasecmp(v->name, "pridialplan")) { + if (!strcasecmp(v->value, "national")) { + confp->pri.dialplan = PRI_NATIONAL_ISDN + 1; + } else if (!strcasecmp(v->value, "unknown")) { + confp->pri.dialplan = PRI_UNKNOWN + 1; + } else if (!strcasecmp(v->value, "private")) { + confp->pri.dialplan = PRI_PRIVATE + 1; + } else if (!strcasecmp(v->value, "international")) { + confp->pri.dialplan = PRI_INTERNATIONAL_ISDN + 1; + } else if (!strcasecmp(v->value, "local")) { + confp->pri.dialplan = PRI_LOCAL_ISDN + 1; + } else if (!strcasecmp(v->value, "dynamic")) { + confp->pri.dialplan = -1; + } else { + ast_log(LOG_WARNING, "Unknown PRI dialplan '%s' at line %d.\n", v->value, v->lineno); + } + } else if (!strcasecmp(v->name, "prilocaldialplan")) { + if (!strcasecmp(v->value, "national")) { + confp->pri.localdialplan = PRI_NATIONAL_ISDN + 1; + } else if (!strcasecmp(v->value, "unknown")) { + confp->pri.localdialplan = PRI_UNKNOWN + 1; + } else if (!strcasecmp(v->value, "private")) { + confp->pri.localdialplan = PRI_PRIVATE + 1; + } else if (!strcasecmp(v->value, "international")) { + confp->pri.localdialplan = PRI_INTERNATIONAL_ISDN + 1; + } else if (!strcasecmp(v->value, "local")) { + confp->pri.localdialplan = PRI_LOCAL_ISDN + 1; + } else if (!strcasecmp(v->value, "dynamic")) { + confp->pri.localdialplan = -1; + } else { + ast_log(LOG_WARNING, "Unknown PRI dialplan '%s' at line %d.\n", v->value, v->lineno); + } + } else if (!strcasecmp(v->name, "switchtype")) { + if (!strcasecmp(v->value, "national")) + confp->pri.switchtype = PRI_SWITCH_NI2; + else if (!strcasecmp(v->value, "ni1")) + confp->pri.switchtype = PRI_SWITCH_NI1; + else if (!strcasecmp(v->value, "dms100")) + confp->pri.switchtype = PRI_SWITCH_DMS100; + else if (!strcasecmp(v->value, "4ess")) + confp->pri.switchtype = PRI_SWITCH_ATT4ESS; + else if (!strcasecmp(v->value, "5ess")) + confp->pri.switchtype = PRI_SWITCH_LUCENT5E; + else if (!strcasecmp(v->value, "euroisdn")) + confp->pri.switchtype = PRI_SWITCH_EUROISDN_E1; + else if (!strcasecmp(v->value, "qsig")) + confp->pri.switchtype = PRI_SWITCH_QSIG; + else { + ast_log(LOG_ERROR, "Unknown switchtype '%s'\n", v->value); + return -1; + } + } else if (!strcasecmp(v->name, "nsf")) { + if (!strcasecmp(v->value, "sdn")) + confp->pri.nsf = PRI_NSF_SDN; + else if (!strcasecmp(v->value, "megacom")) + confp->pri.nsf = PRI_NSF_MEGACOM; + else if (!strcasecmp(v->value, "tollfreemegacom")) + confp->pri.nsf = PRI_NSF_TOLL_FREE_MEGACOM; + else if (!strcasecmp(v->value, "accunet")) + confp->pri.nsf = PRI_NSF_ACCUNET; + else if (!strcasecmp(v->value, "none")) + confp->pri.nsf = PRI_NSF_NONE; + else { + ast_log(LOG_WARNING, "Unknown network-specific facility '%s'\n", v->value); + confp->pri.nsf = PRI_NSF_NONE; + } + } else if (!strcasecmp(v->name, "priindication")) { + if (!strcasecmp(v->value, "outofband")) + confp->chan.priindication_oob = 1; + else if (!strcasecmp(v->value, "inband")) + confp->chan.priindication_oob = 0; + else + ast_log(LOG_WARNING, "'%s' is not a valid pri indication value, should be 'inband' or 'outofband' at line %d\n", + v->value, v->lineno); + } else if (!strcasecmp(v->name, "priexclusive")) { + confp->chan.priexclusive = ast_true(v->value); + } else if (!strcasecmp(v->name, "internationalprefix")) { + ast_copy_string(confp->pri.internationalprefix, v->value, sizeof(confp->pri.internationalprefix)); + } else if (!strcasecmp(v->name, "nationalprefix")) { + ast_copy_string(confp->pri.nationalprefix, v->value, sizeof(confp->pri.nationalprefix)); + } else if (!strcasecmp(v->name, "localprefix")) { + ast_copy_string(confp->pri.localprefix, v->value, sizeof(confp->pri.localprefix)); + } else if (!strcasecmp(v->name, "privateprefix")) { + ast_copy_string(confp->pri.privateprefix, v->value, sizeof(confp->pri.privateprefix)); + } else if (!strcasecmp(v->name, "unknownprefix")) { + ast_copy_string(confp->pri.unknownprefix, v->value, sizeof(confp->pri.unknownprefix)); + } else if (!strcasecmp(v->name, "resetinterval")) { + if (!strcasecmp(v->value, "never")) + confp->pri.resetinterval = -1; + else if (atoi(v->value) >= 60) + confp->pri.resetinterval = atoi(v->value); + else + ast_log(LOG_WARNING, "'%s' is not a valid reset interval, should be >= 60 seconds or 'never' at line %d\n", + v->value, v->lineno); + } else if (!strcasecmp(v->name, "minunused")) { + confp->pri.minunused = atoi(v->value); + } else if (!strcasecmp(v->name, "minidle")) { + confp->pri.minidle = atoi(v->value); + } else if (!strcasecmp(v->name, "idleext")) { + ast_copy_string(confp->pri.idleext, v->value, sizeof(confp->pri.idleext)); + } else if (!strcasecmp(v->name, "idledial")) { + ast_copy_string(confp->pri.idledial, v->value, sizeof(confp->pri.idledial)); + } else if (!strcasecmp(v->name, "overlapdial")) { + confp->pri.overlapdial = ast_true(v->value); +#ifdef HAVE_PRI_INBANDDISCONNECT + } else if (!strcasecmp(v->name, "inbanddisconnect")) { + confp->pri.inbanddisconnect = ast_true(v->value); +#endif + } else if (!strcasecmp(v->name, "pritimer")) { +#ifdef PRI_GETSET_TIMERS + char *timerc, *c; + int timer, timeridx; + c = v->value; + timerc = strsep(&c, ","); + if (timerc) { + timer = atoi(c); + if (!timer) + ast_log(LOG_WARNING, "'%s' is not a valid value for an ISDN timer\n", timerc); + else { + if ((timeridx = pri_timer2idx(timerc)) >= 0) + pritimers[timeridx] = timer; + else + ast_log(LOG_WARNING, "'%s' is not a valid ISDN timer\n", timerc); + } + } else + ast_log(LOG_WARNING, "'%s' is not a valid ISDN timer configuration string\n", v->value); + + } else if (!strcasecmp(v->name, "facilityenable")) { + confp->pri.facilityenable = ast_true(v->value); +#endif /* PRI_GETSET_TIMERS */ +#endif /* HAVE_PRI */ + } else if (!strcasecmp(v->name, "cadence")) { + /* setup to scan our argument */ + int element_count, c[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + int i; + struct dahdi_ring_cadence new_cadence; + int cid_location = -1; + int firstcadencepos = 0; + char original_args[80]; + int cadence_is_ok = 1; + + ast_copy_string(original_args, v->value, sizeof(original_args)); + /* 16 cadences allowed (8 pairs) */ + element_count = sscanf(v->value, "%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d", &c[0], &c[1], &c[2], &c[3], &c[4], &c[5], &c[6], &c[7], &c[8], &c[9], &c[10], &c[11], &c[12], &c[13], &c[14], &c[15]); + + /* Cadence must be even (on/off) */ + if (element_count % 2 == 1) { + ast_log(LOG_ERROR, "Must be a silence duration for each ring duration: %s\n",original_args); + cadence_is_ok = 0; + } + + /* Ring cadences cannot be negative */ + for (i = 0; i < element_count; i++) { + if (c[i] == 0) { + ast_log(LOG_ERROR, "Ring or silence duration cannot be zero: %s\n", original_args); + cadence_is_ok = 0; + break; + } else if (c[i] < 0) { + if (i % 2 == 1) { + /* Silence duration, negative possibly okay */ + if (cid_location == -1) { + cid_location = i; + c[i] *= -1; + } else { + ast_log(LOG_ERROR, "CID location specified twice: %s\n",original_args); + cadence_is_ok = 0; + break; + } + } else { + if (firstcadencepos == 0) { + firstcadencepos = i; /* only recorded to avoid duplicate specification */ + /* duration will be passed negative to the DAHDI driver */ + } else { + ast_log(LOG_ERROR, "First cadence position specified twice: %s\n",original_args); + cadence_is_ok = 0; + break; + } + } + } + } + + /* Substitute our scanned cadence */ + for (i = 0; i < 16; i++) { + new_cadence.ringcadence[i] = c[i]; + } + + if (cadence_is_ok) { + /* ---we scanned it without getting annoyed; now some sanity checks--- */ + if (element_count < 2) { + ast_log(LOG_ERROR, "Minimum cadence is ring,pause: %s\n", original_args); + } else { + if (cid_location == -1) { + /* user didn't say; default to first pause */ + cid_location = 1; + } else { + /* convert element_index to cidrings value */ + cid_location = (cid_location + 1) / 2; + } + /* ---we like their cadence; try to install it--- */ + if (!user_has_defined_cadences++) + /* this is the first user-defined cadence; clear the default user cadences */ + num_cadence = 0; + if ((num_cadence+1) >= NUM_CADENCE_MAX) + ast_log(LOG_ERROR, "Already %d cadences; can't add another: %s\n", NUM_CADENCE_MAX, original_args); + else { + cadences[num_cadence] = new_cadence; + cidrings[num_cadence++] = cid_location; + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "cadence 'r%d' added: %s\n",num_cadence,original_args); + } + } + } + } else if (!strcasecmp(v->name, "ringtimeout")) { + ringt_base = (atoi(v->value) * 8) / READ_SIZE; + } else if (!strcasecmp(v->name, "prewink")) { + confp->timing.prewinktime = atoi(v->value); + } else if (!strcasecmp(v->name, "preflash")) { + confp->timing.preflashtime = atoi(v->value); + } else if (!strcasecmp(v->name, "wink")) { + confp->timing.winktime = atoi(v->value); + } else if (!strcasecmp(v->name, "flash")) { + confp->timing.flashtime = atoi(v->value); + } else if (!strcasecmp(v->name, "start")) { + confp->timing.starttime = atoi(v->value); + } else if (!strcasecmp(v->name, "rxwink")) { + confp->timing.rxwinktime = atoi(v->value); + } else if (!strcasecmp(v->name, "rxflash")) { + confp->timing.rxflashtime = atoi(v->value); + } else if (!strcasecmp(v->name, "debounce")) { + confp->timing.debouncetime = atoi(v->value); + } else if (!strcasecmp(v->name, "toneduration")) { + int toneduration; + int ctlfd; + int res; + struct dahdi_dialparams dps; + + ctlfd = open(DAHDI_FILE_CTL, O_RDWR); + + if (ctlfd == -1) { + ast_log(LOG_ERROR, "Unable to open " DAHDI_FILE_CTL " to set toneduration\n"); + return -1; + } + + toneduration = atoi(v->value); + if (toneduration > -1) { + memset(&dps, 0, sizeof(dps)); + + dps.dtmf_tonelen = dps.mfv1_tonelen = toneduration; + res = ioctl(ctlfd, DAHDI_SET_DIALPARAMS, &dps); + if (res < 0) { + ast_log(LOG_ERROR, "Invalid tone duration: %d ms: %s\n", toneduration, strerror(errno)); + return -1; + } + } + close(ctlfd); + } else if (!strcasecmp(v->name, "defaultcic")) { + ast_copy_string(defaultcic, v->value, sizeof(defaultcic)); + } else if (!strcasecmp(v->name, "defaultozz")) { + ast_copy_string(defaultozz, v->value, sizeof(defaultozz)); + } + } else if (!skipchannels) + ast_log(LOG_WARNING, "Ignoring %s\n", v->name); + } + if (dahdichan[0]) { + /* The user has set 'dahdichan' */ + /*< \todo pass proper line number instead of 0 */ + if (build_channels(confp, 0, dahdichan, reload, 0, &found_pseudo)) { + return -1; + } + } + /*< \todo why check for the pseudo in the per-channel section. + * Any actual use for manual setup of the pseudo channel? */ + if (!found_pseudo && reload == 0) { + /* use the default configuration for a channel, so + that any settings from real configured channels + don't "leak" into the pseudo channel config + */ + struct dahdi_chan_conf conf = dahdi_chan_conf_default(); + + tmp = mkintf(CHAN_PSEUDO, &conf, NULL, reload); + + if (tmp) { + if (option_verbose > 2) + ast_verbose(VERBOSE_PREFIX_3 "Automatically generated pseudo channel\n"); + } else { + ast_log(LOG_WARNING, "Unable to register pseudo channel!\n"); + } + } + return 0; +} + +static int setup_dahdi(int reload) +{ + struct ast_config *cfg; + struct ast_variable *v; + struct dahdi_chan_conf conf = dahdi_chan_conf_default(); + int res; + +#ifdef HAVE_PRI + char *c; + int spanno; + int i, x; + int logicalspan; + int trunkgroup; + int dchannels[NUM_DCHANS]; +#endif + +#ifdef HAVE_ZAPTEL + int load_from_zapata_conf = 1; +#else + int load_from_zapata_conf = (dahdi_chan_mode == CHAN_ZAP_MODE); +#endif + + if (load_from_zapata_conf) { + if (!(cfg = ast_config_load("zapata.conf"))) { + ast_log(LOG_ERROR, "Unable to load zapata.conf\n"); + return 0; + } + } else { + if (!(cfg = ast_config_load("chan_dahdi.conf"))) { + ast_log(LOG_ERROR, "Unable to load chan_dahdi.conf\n"); + return 0; + } + } + + /* It's a little silly to lock it, but we mind as well just to be sure */ + ast_mutex_lock(&iflock); +#ifdef HAVE_PRI + if (reload != 1) { + /* Process trunkgroups first */ + v = ast_variable_browse(cfg, "trunkgroups"); + while (v) { + if (!strcasecmp(v->name, "trunkgroup")) { + trunkgroup = atoi(v->value); + if (trunkgroup > 0) { + if ((c = strchr(v->value, ','))) { + i = 0; + memset(dchannels, 0, sizeof(dchannels)); + while (c && (i < NUM_DCHANS)) { + dchannels[i] = atoi(c + 1); + if (dchannels[i] < 0) { + ast_log(LOG_WARNING, "D-channel for trunk group %d must be a postiive number at line %d of chan_dahdi.conf\n", trunkgroup, v->lineno); + } else + i++; + c = strchr(c + 1, ','); + } + if (i) { + if (pri_create_trunkgroup(trunkgroup, dchannels)) { + ast_log(LOG_WARNING, "Unable to create trunk group %d with Primary D-channel %d at line %d of chan_dahdi.conf\n", trunkgroup, dchannels[0], v->lineno); + } else if (option_verbose > 1) + ast_verbose(VERBOSE_PREFIX_2 "Created trunk group %d with Primary D-channel %d and %d backup%s\n", trunkgroup, dchannels[0], i - 1, (i == 1) ? "" : "s"); + } else + ast_log(LOG_WARNING, "Trunk group %d lacks any valid D-channels at line %d of chan_dahdi.conf\n", trunkgroup, v->lineno); + } else + ast_log(LOG_WARNING, "Trunk group %d lacks a primary D-channel at line %d of chan_dahdi.conf\n", trunkgroup, v->lineno); + } else + ast_log(LOG_WARNING, "Trunk group identifier must be a positive integer at line %d of chan_dahdi.conf\n", v->lineno); + } else if (!strcasecmp(v->name, "spanmap")) { + spanno = atoi(v->value); + if (spanno > 0) { + if ((c = strchr(v->value, ','))) { + trunkgroup = atoi(c + 1); + if (trunkgroup > 0) { + if ((c = strchr(c + 1, ','))) + logicalspan = atoi(c + 1); + else + logicalspan = 0; + if (logicalspan >= 0) { + if (pri_create_spanmap(spanno - 1, trunkgroup, logicalspan)) { + ast_log(LOG_WARNING, "Failed to map span %d to trunk group %d (logical span %d)\n", spanno, trunkgroup, logicalspan); + } else if (option_verbose > 1) + ast_verbose(VERBOSE_PREFIX_2 "Mapped span %d to trunk group %d (logical span %d)\n", spanno, trunkgroup, logicalspan); + } else + ast_log(LOG_WARNING, "Logical span must be a postive number, or '0' (for unspecified) at line %d of chan_dahdi.conf\n", v->lineno); + } else + ast_log(LOG_WARNING, "Trunk group must be a postive number at line %d of chan_dahdi.conf\n", v->lineno); + } else + ast_log(LOG_WARNING, "Missing trunk group for span map at line %d of chan_dahdi.conf\n", v->lineno); + } else + ast_log(LOG_WARNING, "Span number must be a postive integer at line %d of chan_dahdi.conf\n", v->lineno); + } else { + ast_log(LOG_NOTICE, "Ignoring unknown keyword '%s' in trunkgroups\n", v->name); + } + v = v->next; + } + } +#endif + + /* Copy the default jb config over global_jbconf */ + memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf)); + + v = ast_variable_browse(cfg, "channels"); + res = process_dahdi(&conf, "", v, reload, 0); + ast_mutex_unlock(&iflock); + ast_config_destroy(cfg); + if (res) + return res; + cfg = ast_config_load("users.conf"); + if (cfg) { + char *cat; + const char *chans; + process_dahdi(&conf, "", ast_variable_browse(cfg, "general"), 1, 1); + for (cat = ast_category_browse(cfg, NULL); cat ; cat = ast_category_browse(cfg, cat)) { + if (!strcasecmp(cat, "general")) + continue; + chans = ast_variable_retrieve(cfg, cat, "dahdichan"); + if (!ast_strlen_zero(chans)) { + struct dahdi_chan_conf sect_conf; + memcpy(§_conf, &conf, sizeof(sect_conf)); + + process_dahdi(§_conf, cat, ast_variable_browse(cfg, cat), reload, 0); + } + } + ast_config_destroy(cfg); + } +#ifdef HAVE_PRI + if (reload != 1) { + for (x = 0; x < NUM_SPANS; x++) { + if (pris[x].pvts[0]) { + if (start_pri(pris + x)) { + ast_log(LOG_ERROR, "Unable to start D-channel on span %d\n", x + 1); + return -1; + } else if (option_verbose > 1) + ast_verbose(VERBOSE_PREFIX_2 "Starting D-Channel on span %d\n", x + 1); + } + } + } +#endif + /* And start the monitor for the first time */ + restart_monitor(); + return 0; +} + +#define local_astman_register(a, b, c, d) do { \ + if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { \ + ast_manager_register("DAHDI" a, b, dahdi_ ## c, d); \ + } \ + ast_manager_register("Zap" a, b, zap_ ## c, d); \ + } while (0) + +static int load_module(void) +{ + int res; + +#ifdef HAVE_PRI + int y,i; + memset(pris, 0, sizeof(pris)); + for (y = 0; y < NUM_SPANS; y++) { + ast_mutex_init(&pris[y].lock); + pris[y].offset = -1; + pris[y].master = AST_PTHREADT_NULL; + for (i = 0; i < NUM_DCHANS; i++) + pris[y].fds[i] = -1; + } + pri_set_error(dahdi_pri_error); + pri_set_message(dahdi_pri_message); + if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { + ast_register_application(dahdi_send_keypad_facility_app, dahdi_send_keypad_facility_exec, + dahdi_send_keypad_facility_synopsis, dahdi_send_keypad_facility_descrip); + } + ast_register_application(zap_send_keypad_facility_app, zap_send_keypad_facility_exec, + zap_send_keypad_facility_synopsis, zap_send_keypad_facility_descrip); +#endif + if ((res = setup_dahdi(0))) { + return AST_MODULE_LOAD_DECLINE; + } + if (*dahdi_chan_mode == CHAN_DAHDI_PLUS_ZAP_MODE) { + chan_tech = &dahdi_tech; + } else { + chan_tech = &zap_tech; + } + if (ast_channel_register(chan_tech)) { + ast_log(LOG_ERROR, "Unable to register channel class '%s'\n", chan_tech->type); + __unload_module(); + return -1; + } +#ifdef HAVE_PRI + ast_string_field_init(&inuse, 16); + ast_string_field_set(&inuse, name, "GR-303InUse"); + ast_cli_register_multiple(dahdi_pri_cli, sizeof(dahdi_pri_cli) / sizeof(struct ast_cli_entry)); +#endif + ast_cli_register_multiple(dahdi_cli, sizeof(dahdi_cli) / sizeof(struct ast_cli_entry)); + + memset(round_robin, 0, sizeof(round_robin)); + local_astman_register("Transfer", 0, action_transfer, "Transfer Channel"); + local_astman_register("Hangup", 0, action_transferhangup, "Hangup Channel"); + local_astman_register("DialOffHook", 0, action_dialoffhook, "Dial over channel while offhook"); + local_astman_register("DNDon", 0, action_dndon, "Toggle channel Do Not Disturb status ON"); + local_astman_register("DNDoff", 0, action_dndoff, "Toggle channel Do Not Disturb status OFF"); + local_astman_register("ShowChannels", 0, action_showchannels, "Show status channels"); + local_astman_register("Restart", 0, action_restart, "Fully Restart channels (terminates calls)"); + + ast_cond_init(&ss_thread_complete, NULL); + + return res; +} + +static int dahdi_sendtext(struct ast_channel *c, const char *text) +{ +#define END_SILENCE_LEN 400 +#define HEADER_MS 50 +#define TRAILER_MS 5 +#define HEADER_LEN ((HEADER_MS + TRAILER_MS) * 8) +#define ASCII_BYTES_PER_CHAR 80 + + unsigned char *buf,*mybuf; + struct dahdi_pvt *p = c->tech_pvt; + struct pollfd fds[1]; + int size,res,fd,len,x; + int bytes=0; + /* Initial carrier (imaginary) */ + float cr = 1.0; + float ci = 0.0; + float scont = 0.0; + int index; + + index = dahdi_get_index(c, p, 0); + if (index < 0) { + ast_log(LOG_WARNING, "Huh? I don't exist?\n"); + return -1; + } + if (!text[0]) return(0); /* if nothing to send, dont */ + if ((!p->tdd) && (!p->mate)) return(0); /* if not in TDD mode, just return */ + if (p->mate) + buf = ast_malloc(((strlen(text) + 1) * ASCII_BYTES_PER_CHAR) + END_SILENCE_LEN + HEADER_LEN); + else + buf = ast_malloc(((strlen(text) + 1) * TDD_BYTES_PER_CHAR) + END_SILENCE_LEN); + if (!buf) + return -1; + mybuf = buf; + if (p->mate) { + int codec = AST_LAW(p); + for (x = 0; x < HEADER_MS; x++) { /* 50 ms of Mark */ + PUT_CLID_MARKMS; + } + /* Put actual message */ + for (x = 0; text[x]; x++) { + PUT_CLID(text[x]); + } + for (x = 0; x < TRAILER_MS; x++) { /* 5 ms of Mark */ + PUT_CLID_MARKMS; + } + len = bytes; + buf = mybuf; + } else { + len = tdd_generate(p->tdd, buf, text); + if (len < 1) { + ast_log(LOG_ERROR, "TDD generate (len %d) failed!!\n", (int)strlen(text)); + free(mybuf); + return -1; + } + } + memset(buf + len, 0x7f, END_SILENCE_LEN); + len += END_SILENCE_LEN; + fd = p->subs[index].dfd; + while (len) { + if (ast_check_hangup(c)) { + free(mybuf); + return -1; + } + size = len; + if (size > READ_SIZE) + size = READ_SIZE; + fds[0].fd = fd; + fds[0].events = POLLOUT | POLLPRI; + fds[0].revents = 0; + res = poll(fds, 1, -1); + if (!res) { + ast_log(LOG_DEBUG, "poll (for write) ret. 0 on channel %d\n", p->channel); + continue; + } + /* if got exception */ + if (fds[0].revents & POLLPRI) { + ast_free(mybuf); + return -1; + } + if (!(fds[0].revents & POLLOUT)) { + ast_log(LOG_DEBUG, "write fd not ready on channel %d\n", p->channel); + continue; + } + res = write(fd, buf, size); + if (res != size) { + if (res == -1) { + free(mybuf); + return -1; + } + if (option_debug) + ast_log(LOG_DEBUG, "Write returned %d (%s) on channel %d\n", res, strerror(errno), p->channel); + break; + } + len -= size; + buf += size; + } + free(mybuf); + return(0); +} + + +static int reload(void) +{ + int res = 0; + + res = setup_dahdi(1); + if (res) { + ast_log(LOG_WARNING, "Reload of chan_dahdi.so is unsuccessful!\n"); + return -1; + } + return 0; +} + +/* This is a workaround so that menuselect displays a proper description + * AST_MODULE_INFO(, , "DAHDI Telephony" + */ + +#ifdef HAVE_PRI +#define tdesc "DAHDI Telephony w/PRI" +#else +#define tdesc "DAHDI Telephony" +#endif + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, tdesc, + .load = load_module, + .unload = unload_module, + .reload = reload, + ); + + |