diff options
Diffstat (limited to 'trunk/apps/app_sms.c')
| -rw-r--r-- | trunk/apps/app_sms.c | 1932 |
1 files changed, 0 insertions, 1932 deletions
diff --git a/trunk/apps/app_sms.c b/trunk/apps/app_sms.c deleted file mode 100644 index 3c54d43f1..000000000 --- a/trunk/apps/app_sms.c +++ /dev/null @@ -1,1932 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 2004 - 2005, Adrian Kennard, rights assigned to Digium - * - * 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 SMS application - ETSI ES 201 912 protocol 1 implementation - * - * \par Development notes - * \note The ETSI standards are available free of charge from ETSI at - * http://pda.etsi.org/pda/queryform.asp - * Among the relevant documents here we have: - * - * ES 201 912 SMS for PSTN/ISDN - * TS 123 040 Technical realization of SMS - * - * - * \ingroup applications - * - * \author Adrian Kennard (for the original protocol 1 code) - * \author Filippo Grassilli (Hyppo) - protocol 2 support - * Not fully tested, under development - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <dirent.h> -#include <ctype.h> -#include <sys/stat.h> - -#include "asterisk/paths.h" /* use ast_config_AST_SPOOL_DIR and LOG_DIR */ -#include "asterisk/lock.h" -#include "asterisk/file.h" -#include "asterisk/channel.h" -#include "asterisk/pbx.h" -#include "asterisk/module.h" -#include "asterisk/alaw.h" -#include "asterisk/callerid.h" -#include "asterisk/utils.h" -#include "asterisk/app.h" - -/* #define OUTALAW */ /* enable this to output Alaw rather than linear */ - -/* ToDo */ -/* Add full VP support */ -/* Handle status report messages (generation and reception) */ -/* Time zones on time stamps */ -/* user ref field */ - -static volatile unsigned char message_ref; /* arbitary message ref */ -static volatile unsigned int seq; /* arbitrary message sequence number for unqiue files */ - -static char log_file[255]; - -static char *app = "SMS"; - -static char *synopsis = "Communicates with SMS service centres and SMS capable analogue phones"; - -static char *descrip = - " SMS(name,[a][s][t][p(d)][r][o],addr,body):\n" - "SMS handles exchange of SMS data with a call to/from SMS capable\n" - "phone or SMS PSTN service center. Can send and/or receive SMS messages.\n" - "Works to ETSI ES 201 912; compatible with BT SMS PSTN service in UK\n" - "and Telecom Italia in Italy.\n" - "Typical usage is to use to handle calls from the SMS service centre CLI,\n" - "or to set up a call using 'outgoing' or manager interface to connect\n" - "service centre to SMS()\n" - "name is the name of the queue used in /var/spool/asterisk/sms\n" - "Arguments:\n" - " a - answer, i.e. send initial FSK packet.\n" - " s - act as service centre talking to a phone.\n" - " t - use protocol 2 (default used is protocol 1).\n" - " p(N) - set the initial delay to N ms (default is 300).\n" - " addr and body are a deprecated format to send messages out.\n" - " s - set the Status Report Request (SRR) bit.\n" - " o - the body should be coded as octets not 7-bit symbols.\n" - "Messages are processed as per text file message queues.\n" - "smsq (a separate software) is a command to generate message\n" - "queues and send messages.\n" - "NOTE: the protocol has tight delay bounds. Please use short frames\n" - "and disable/keep short the jitter buffer on the ATA to make sure that\n" - "respones (ACK etc.) are received in time.\n"; - -/* - * 80 samples of a single period of the wave. At 8000 Hz, it means these - * are the samples of a 100 Hz signal. - * To pick the two carriers (1300Hz for '1' and 2100 Hz for '0') used by - * the modulation, we should take one every 13 and 21 samples respectively. - */ -static signed short wave[] = { - 0, 392, 782, 1167, 1545, 1913, 2270, 2612, 2939, 3247, 3536, 3802, 4045, 4263, 4455, 4619, 4755, 4862, 4938, 4985, - 5000, 4985, 4938, 4862, 4755, 4619, 4455, 4263, 4045, 3802, 3536, 3247, 2939, 2612, 2270, 1913, 1545, 1167, 782, 392, - 0, -392, -782, -1167, - -1545, -1913, -2270, -2612, -2939, -3247, -3536, -3802, -4045, -4263, -4455, -4619, -4755, -4862, -4938, -4985, -5000, - -4985, -4938, -4862, - -4755, -4619, -4455, -4263, -4045, -3802, -3536, -3247, -2939, -2612, -2270, -1913, -1545, -1167, -782, -392 -}; - -#ifdef OUTALAW -static unsigned char wavea[80]; -typedef unsigned char output_t; -static const output_t *wave_out = wavea; /* outgoing samples */ -#define __OUT_FMT AST_FORMAT_ALAW; -#else -typedef signed short output_t; -static const output_t *wave_out = wave; /* outgoing samples */ -#define __OUT_FMT AST_FORMAT_SLINEAR -#endif - -#define OSYNC_BITS 80 /* initial sync bits */ - -/*! - * The SMS spec ETSI ES 201 912 defines two protocols with different message types. - * Also note that the high bit is used to indicate whether the message - * is complete or not, but in two opposite ways: - * for Protocol 1, 0x80 means that the message is complete; - * for Protocol 2, 0x00 means that the message is complete; - */ -enum message_types { - DLL_SMS_MASK = 0x7f, /* mask for the valid bits */ - - /* Protocol 1 values */ - DLL1_SMS_DATA = 0x11, /* data packet */ - DLL1_SMS_ERROR = 0x12, - DLL1_SMS_EST = 0x13, /* start the connection */ - DLL1_SMS_REL = 0x14, /* end the connection */ - DLL1_SMS_ACK = 0x15, - DLL1_SMS_NACK = 0x16, - - DLL1_SMS_COMPLETE = 0x80, /* packet is complete */ - DLL1_SMS_MORE = 0x00, /* more data to follow */ - - /* Protocol 2 values */ - DLL2_SMS_EST = 0x7f, /* magic number. No message body */ - DLL2_SMS_INFO_MO = 0x10, - DLL2_SMS_INFO_MT = 0x11, - DLL2_SMS_INFO_STA = 0x12, - DLL2_SMS_NACK = 0x13, - DLL2_SMS_ACK0 = 0x14, /* ack even-numbered frame */ - DLL2_SMS_ACK1 = 0x15, /* ack odd-numbered frame */ - DLL2_SMS_ENQ = 0x16, - DLL2_SMS_REL = 0x17, /* end the connection */ - - DLL2_SMS_COMPLETE = 0x00, /* packet is complete */ - DLL2_SMS_MORE = 0x80, /* more data to follow */ -}; - -/* SMS 7 bit character mapping to UCS-2 */ -static const unsigned short defaultalphabet[] = { - 0x0040, 0x00A3, 0x0024, 0x00A5, 0x00E8, 0x00E9, 0x00F9, 0x00EC, - 0x00F2, 0x00E7, 0x000A, 0x00D8, 0x00F8, 0x000D, 0x00C5, 0x00E5, - 0x0394, 0x005F, 0x03A6, 0x0393, 0x039B, 0x03A9, 0x03A0, 0x03A8, - 0x03A3, 0x0398, 0x039E, 0x00A0, 0x00C6, 0x00E6, 0x00DF, 0x00C9, - ' ', '!', '"', '#', 164, '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/', - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?', - 161, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', - 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 196, 214, 209, 220, 167, - 191, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', - 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 228, 246, 241, 252, 224, -}; - -static const unsigned short escapes[] = { - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x000C, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0x005E, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0x007B, 0x007D, 0, 0, 0, 0, 0, 0x005C, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x005B, 0x007E, 0x005D, 0, - 0x007C, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0x20AC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -}; - -#define SMSLEN 160 /*!< max SMS length */ -#define SMSLEN_8 140 /*!< max SMS length for 8-bit char */ - -typedef struct sms_s { - unsigned char hangup; /*!< we are done... */ - unsigned char err; /*!< set for any errors */ - unsigned char smsc:1; /*!< we are SMSC */ - unsigned char rx:1; /*!< this is a received message */ - char queue[30]; /*!< queue name */ - char oa[20]; /*!< originating address */ - char da[20]; /*!< destination address */ - struct timeval scts; /*!< time stamp, UTC */ - unsigned char pid; /*!< protocol ID */ - unsigned char dcs; /*!< data coding scheme */ - short mr; /*!< message reference - actually a byte, but use -1 for not set */ - int udl; /*!< user data length */ - int udhl; /*!< user data header length */ - unsigned char srr:1; /*!< Status Report request */ - unsigned char udhi:1; /*!< User Data Header required, even if length 0 */ - unsigned char rp:1; /*!< Reply Path */ - unsigned int vp; /*!< validity period in minutes, 0 for not set */ - unsigned short ud[SMSLEN]; /*!< user data (message), UCS-2 coded */ - unsigned char udh[SMSLEN]; /*!< user data header */ - char cli[20]; /*!< caller ID */ - unsigned char ophase; /*!< phase (0-79) for 0 and 1 frequencies (1300Hz and 2100Hz) */ - unsigned char ophasep; /*!< phase (0-79) for 1200 bps */ - unsigned char obyte; /*!< byte being sent */ - unsigned int opause; /*!< silent pause before sending (in sample periods) */ - unsigned char obitp; /*!< bit in byte */ - unsigned char osync; /*!< sync bits to send */ - unsigned char obytep; /*!< byte in data */ - unsigned char obyten; /*!< bytes in data */ - unsigned char omsg[256]; /*!< data buffer (out) */ - unsigned char imsg[250]; /*!< data buffer (in) */ - signed long long ims0, - imc0, - ims1, - imc1; /*!< magnitude averages sin/cos 0/1 */ - unsigned int idle; - unsigned short imag; /*!< signal level */ - unsigned char ips0; /*!< phase sin for bit 0, start at 0 inc by 21 mod 80 */ - unsigned char ips1; /*!< phase cos for bit 0, start at 20 inc by 21 mod 80 */ - unsigned char ipc0; /*!< phase sin for bit 1, start at 0 inc by 13 mod 80 */ - unsigned char ipc1; /*!< phase cos for bit 1, start at 20 inc by 13 mod 80 */ - unsigned char ibitl; /*!< last bit */ - unsigned char ibitc; /*!< bit run length count */ - unsigned char iphasep; /*!< bit phase (0-79) for 1200 bps */ - unsigned char ibitn; /*!< bit number in byte being received */ - unsigned char ibytev; /*!< byte value being received */ - unsigned char ibytep; /*!< byte pointer in message */ - unsigned char ibytec; /*!< byte checksum for message */ - unsigned char ierr; /*!< error flag */ - unsigned char ibith; /*!< history of last bits */ - unsigned char ibitt; /*!< total of 1's in last 3 bytes */ - /* more to go here */ - - int opause_0; /*!< initial delay in ms, p() option */ - int protocol; /*!< ETSI SMS protocol to use (passed at app call) */ - int oseizure; /*!< protocol 2: channel seizure bits to send */ - int framenumber; /*!< protocol 2: frame number (for sending ACK0 or ACK1) */ - char udtxt[SMSLEN]; /*!< user data (message), PLAIN text */ -} sms_t; - -/* different types of encoding */ -#define is7bit(dcs) ( ((dcs) & 0xC0) ? (!((dcs)&4) ) : (((dcs) & 0xc) == 0) ) -#define is8bit(dcs) ( ((dcs) & 0xC0) ? ( ((dcs)&4) ) : (((dcs) & 0xc) == 4) ) -#define is16bit(dcs) ( ((dcs) & 0xC0) ? 0 : (((dcs) & 0xc) == 8) ) - -static void sms_messagetx(sms_t *h); - -/*! \brief copy number, skipping non digits apart from leading + */ -static void numcpy(char *d, char *s) -{ - if (*s == '+') - *d++ = *s++; - while (*s) { - if (isdigit(*s)) - *d++ = *s; - s++; - } - *d = 0; -} - -/*! \brief static, return a date/time in ISO format */ -static char *isodate(time_t t, char *buf, int len) -{ - struct ast_tm tm; - struct timeval tv = { t, 0 }; - ast_localtime(&tv, &tm, NULL); - ast_strftime(buf, len, "%Y-%m-%dT%H:%M:%S", &tm); - return buf; -} - -/*! \brief Reads next UCS character from NUL terminated UTF-8 string and advance pointer */ -/* for non valid UTF-8 sequences, returns character as is */ -/* Does not advance pointer for null termination */ -static long utf8decode(unsigned char **pp) -{ - unsigned char *p = *pp; - if (!*p) - return 0; /* null termination of string */ - (*pp)++; - if (*p < 0xC0) - return *p; /* ascii or continuation character */ - if (*p < 0xE0) { - if (*p < 0xC2 || (p[1] & 0xC0) != 0x80) - return *p; /* not valid UTF-8 */ - (*pp)++; - return ((*p & 0x1F) << 6) + (p[1] & 0x3F); - } - if (*p < 0xF0) { - if ((*p == 0xE0 && p[1] < 0xA0) || (p[1] & 0xC0) != 0x80 || (p[2] & 0xC0) != 0x80) - return *p; /* not valid UTF-8 */ - (*pp) += 2; - return ((*p & 0x0F) << 12) + ((p[1] & 0x3F) << 6) + (p[2] & 0x3F); - } - if (*p < 0xF8) { - if ((*p == 0xF0 && p[1] < 0x90) || (p[1] & 0xC0) != 0x80 || (p[2] & 0xC0) != 0x80 || (p[3] & 0xC0) != 0x80) - return *p; /* not valid UTF-8 */ - (*pp) += 3; - return ((*p & 0x07) << 18) + ((p[1] & 0x3F) << 12) + ((p[2] & 0x3F) << 6) + (p[3] & 0x3F); - } - if (*p < 0xFC) { - if ((*p == 0xF8 && p[1] < 0x88) || (p[1] & 0xC0) != 0x80 || (p[2] & 0xC0) != 0x80 || (p[3] & 0xC0) != 0x80 - || (p[4] & 0xC0) != 0x80) - return *p; /* not valid UTF-8 */ - (*pp) += 4; - return ((*p & 0x03) << 24) + ((p[1] & 0x3F) << 18) + ((p[2] & 0x3F) << 12) + ((p[3] & 0x3F) << 6) + (p[4] & 0x3F); - } - if (*p < 0xFE) { - if ((*p == 0xFC && p[1] < 0x84) || (p[1] & 0xC0) != 0x80 || (p[2] & 0xC0) != 0x80 || (p[3] & 0xC0) != 0x80 - || (p[4] & 0xC0) != 0x80 || (p[5] & 0xC0) != 0x80) - return *p; /* not valid UTF-8 */ - (*pp) += 5; - return ((*p & 0x01) << 30) + ((p[1] & 0x3F) << 24) + ((p[2] & 0x3F) << 18) + ((p[3] & 0x3F) << 12) + ((p[4] & 0x3F) << 6) + (p[5] & 0x3F); - } - return *p; /* not sensible */ -} - -/*! \brief takes a binary header (udhl bytes at udh) and UCS-2 message (udl characters at ud) and packs in to o using SMS 7 bit character codes */ -/* The return value is the number of septets packed in to o, which is internally limited to SMSLEN */ -/* o can be null, in which case this is used to validate or count only */ -/* if the input contains invalid characters then the return value is -1 */ -static int packsms7(unsigned char *o, int udhl, unsigned char *udh, int udl, unsigned short *ud) -{ - unsigned char p = 0; /* output pointer (bytes) */ - unsigned char b = 0; /* bit position */ - unsigned char n = 0; /* output character count */ - unsigned char dummy[SMSLEN]; - - if (o == NULL) /* output to a dummy buffer if o not set */ - o = dummy; - - if (udhl) { /* header */ - o[p++] = udhl; - b = 1; - n = 1; - while (udhl--) { - o[p++] = *udh++; - b += 8; - while (b >= 7) { - b -= 7; - n++; - } - if (n >= SMSLEN) - return n; - } - if (b) { - b = 7 - b; - if (++n >= SMSLEN) - return n; - }; /* filling to septet boundary */ - } - o[p] = 0; - /* message */ - while (udl--) { - long u; - unsigned char v; - u = *ud++; - /* XXX 0 is invalid ? */ - /* look up in defaultalphabet[]. If found, v is the 7-bit code */ - for (v = 0; v < 128 && defaultalphabet[v] != u; v++); - if (v == 128 /* not found */ && u && n + 1 < SMSLEN) { - /* if not found, look in the escapes table (we need 2 bytes) */ - for (v = 0; v < 128 && escapes[v] != u; v++); - if (v < 128) { /* escaped sequence, esc + v */ - /* store the low (8-b) bits in o[p], the remaining bits in o[p+1] */ - o[p] |= (27 << b); /* the low bits go into o[p] */ - b += 7; - if (b >= 8) { - b -= 8; - p++; - o[p] = (27 >> (7 - b)); - } - n++; - } - } - if (v == 128) - return -1; /* invalid character */ - /* store, same as above */ - o[p] |= (v << b); - b += 7; - if (b >= 8) { - b -= 8; - p++; - o[p] = (v >> (7 - b)); - } - if (++n >= SMSLEN) - return n; - } - return n; -} - -/*! \brief takes a binary header (udhl bytes at udh) and UCS-2 message (udl characters at ud) - * and packs in to o using 8 bit character codes. - * The return value is the number of bytes packed in to o, which is internally limited to 140. - * o can be null, in which case this is used to validate or count only. - * if the input contains invalid characters then the return value is -1 - */ -static int packsms8(unsigned char *o, int udhl, unsigned char *udh, int udl, unsigned short *ud) -{ - unsigned char p = 0; - unsigned char dummy[SMSLEN_8]; - - if (o == NULL) - o = dummy; - /* header - no encoding */ - if (udhl) { - o[p++] = udhl; - while (udhl--) { - o[p++] = *udh++; - if (p >= SMSLEN_8) - return p; - } - } - while (udl--) { - long u; - u = *ud++; - if (u < 0 || u > 0xFF) - return -1; /* not valid */ - o[p++] = u; - if (p >= SMSLEN_8) - return p; - } - return p; -} - -/*! \brief takes a binary header (udhl bytes at udh) and UCS-2 - message (udl characters at ud) and packs in to o using 16 bit - UCS-2 character codes - The return value is the number of bytes packed in to o, which is - internally limited to 140 - o can be null, in which case this is used to validate or count - only if the input contains invalid characters then - the return value is -1 */ -static int packsms16(unsigned char *o, int udhl, unsigned char *udh, int udl, unsigned short *ud) -{ - unsigned char p = 0; - unsigned char dummy[SMSLEN_8]; - - if (o == NULL) - o = dummy; - /* header - no encoding */ - if (udhl) { - o[p++] = udhl; - while (udhl--) { - o[p++] = *udh++; - if (p >= SMSLEN_8) - return p; - } - } - while (udl--) { - long u; - u = *ud++; - o[p++] = (u >> 8); - if (p >= SMSLEN_8) - return p - 1; /* could not fit last character */ - o[p++] = u; - if (p >= SMSLEN_8) - return p; - } - return p; -} - -/*! \brief general pack, with length and data, - returns number of bytes of target used */ -static int packsms(unsigned char dcs, unsigned char *base, unsigned int udhl, unsigned char *udh, int udl, unsigned short *ud) -{ - unsigned char *p = base; - if (udl == 0) - *p++ = 0; /* no user data */ - else { - - int l = 0; - if (is7bit(dcs)) { /* 7 bit */ - l = packsms7(p + 1, udhl, udh, udl, ud); - if (l < 0) - l = 0; - *p++ = l; - p += (l * 7 + 7) / 8; - } else if (is8bit(dcs)) { /* 8 bit */ - l = packsms8(p + 1, udhl, udh, udl, ud); - if (l < 0) - l = 0; - *p++ = l; - p += l; - } else { /* UCS-2 */ - l = packsms16(p + 1, udhl, udh, udl, ud); - if (l < 0) - l = 0; - *p++ = l; - p += l; - } - } - return p - base; -} - - -/*! \brief pack a date and return */ -static void packdate(unsigned char *o, time_t w) -{ - struct ast_tm t; - struct timeval tv = { w, 0 }; - int z; - - ast_localtime(&tv, &t, NULL); -#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined( __NetBSD__ ) || defined(__APPLE__) || defined(__CYGWIN__) - z = -t.tm_gmtoff / 60 / 15; -#else - z = timezone / 60 / 15; -#endif - *o++ = ((t.tm_year % 10) << 4) + (t.tm_year % 100) / 10; - *o++ = (((t.tm_mon + 1) % 10) << 4) + (t.tm_mon + 1) / 10; - *o++ = ((t.tm_mday % 10) << 4) + t.tm_mday / 10; - *o++ = ((t.tm_hour % 10) << 4) + t.tm_hour / 10; - *o++ = ((t.tm_min % 10) << 4) + t.tm_min / 10; - *o++ = ((t.tm_sec % 10) << 4) + t.tm_sec / 10; - if (z < 0) - *o++ = (((-z) % 10) << 4) + (-z) / 10 + 0x08; - else - *o++ = ((z % 10) << 4) + z / 10; -} - -/*! \brief unpack a date and return */ -static time_t unpackdate(unsigned char *i) -{ - struct tm t; - t.tm_year = 100 + (i[0] & 0xF) * 10 + (i[0] >> 4); - t.tm_mon = (i[1] & 0xF) * 10 + (i[1] >> 4) - 1; - t.tm_mday = (i[2] & 0xF) * 10 + (i[2] >> 4); - t.tm_hour = (i[3] & 0xF) * 10 + (i[3] >> 4); - t.tm_min = (i[4] & 0xF) * 10 + (i[4] >> 4); - t.tm_sec = (i[5] & 0xF) * 10 + (i[5] >> 4); - t.tm_isdst = 0; - if (i[6] & 0x08) - t.tm_min += 15 * ((i[6] & 0x7) * 10 + (i[6] >> 4)); - else - t.tm_min -= 15 * ((i[6] & 0x7) * 10 + (i[6] >> 4)); - return mktime(&t); -} - -/*! \brief unpacks bytes (7 bit encoding) at i, len l septets, - and places in udh and ud setting udhl and udl. udh not used - if udhi not set */ -static void unpacksms7(unsigned char *i, unsigned char l, unsigned char *udh, int *udhl, unsigned short *ud, int *udl, char udhi) -{ - unsigned char b = 0, p = 0; - unsigned short *o = ud; - *udhl = 0; - if (udhi && l) { /* header */ - int h = i[p]; - *udhl = h; - if (h) { - b = 1; - p++; - l--; - while (h-- && l) { - *udh++ = i[p++]; - b += 8; - while (b >= 7) { - b -= 7; - l--; - if (!l) - break; - } - } - /* adjust for fill, septets */ - if (b) { - b = 7 - b; - l--; - } - } - } - while (l--) { - unsigned char v; - if (b < 2) - v = ((i[p] >> b) & 0x7F); /* everything in one byte */ - else - v = ((((i[p] >> b) + (i[p + 1] << (8 - b)))) & 0x7F); - b += 7; - if (b >= 8) { - b -= 8; - p++; - } - /* 0x00A0 is the encoding of ESC (27) in defaultalphabet */ - if (o > ud && o[-1] == 0x00A0 && escapes[v]) - o[-1] = escapes[v]; - else - *o++ = defaultalphabet[v]; - } - *udl = (o - ud); -} - -/*! \brief unpacks bytes (8 bit encoding) at i, len l septets, - and places in udh and ud setting udhl and udl. udh not used - if udhi not set */ -static void unpacksms8(unsigned char *i, unsigned char l, unsigned char *udh, int *udhl, unsigned short *ud, int *udl, char udhi) -{ - unsigned short *o = ud; - *udhl = 0; - if (udhi) { - int n = *i; - *udhl = n; - if (n) { - i++; - l--; - while (l && n) { - l--; - n--; - *udh++ = *i++; - } - } - } - while (l--) - *o++ = *i++; /* not to UTF-8 as explicitly 8 bit coding in DCS */ - *udl = (o - ud); -} - -/*! \brief unpacks bytes (16 bit encoding) at i, len l septets, - and places in udh and ud setting udhl and udl. - udh not used if udhi not set */ -static void unpacksms16(unsigned char *i, unsigned char l, unsigned char *udh, int *udhl, unsigned short *ud, int *udl, char udhi) -{ - unsigned short *o = ud; - *udhl = 0; - if (udhi) { - int n = *i; - *udhl = n; - if (n) { - i++; - l--; - while (l && n) { - l--; - n--; - *udh++ = *i++; - } - } - } - while (l--) { - int v = *i++; - if (l--) - v = (v << 8) + *i++; - *o++ = v; - } - *udl = (o - ud); -} - -/*! \brief general unpack - starts with length byte (octet or septet) and returns number of bytes used, inc length */ -static int unpacksms(unsigned char dcs, unsigned char *i, unsigned char *udh, int *udhl, unsigned short *ud, int *udl, char udhi) -{ - int l = *i++; - if (is7bit(dcs)) { - unpacksms7(i, l, udh, udhl, ud, udl, udhi); - l = (l * 7 + 7) / 8; /* adjust length to return */ - } else if (is8bit(dcs)) - unpacksms8(i, l, udh, udhl, ud, udl, udhi); - else - unpacksms16(i, l, udh, udhl, ud, udl, udhi); - return l + 1; -} - -/*! \brief unpack an address from i, return byte length, unpack to o */ -static unsigned char unpackaddress(char *o, unsigned char *i) -{ - unsigned char l = i[0], - p; - if (i[1] == 0x91) - *o++ = '+'; - for (p = 0; p < l; p++) { - if (p & 1) - *o++ = (i[2 + p / 2] >> 4) + '0'; - else - *o++ = (i[2 + p / 2] & 0xF) + '0'; - } - *o = 0; - return (l + 5) / 2; -} - -/*! \brief store an address at o, and return number of bytes used */ -static unsigned char packaddress(unsigned char *o, char *i) -{ - unsigned char p = 2; - o[0] = 0; /* number of bytes */ - if (*i == '+') { /* record as bit 0 in byte 1 */ - i++; - o[1] = 0x91; - } else - o[1] = 0x81; - for ( ; *i ; i++) { - if (!isdigit(*i)) /* ignore non-digits */ - continue; - if (o[0] & 1) - o[p++] |= ((*i & 0xF) << 4); - else - o[p] = (*i & 0xF); - o[0]++; - } - if (o[0] & 1) - o[p++] |= 0xF0; /* pad */ - return p; -} - -/*! \brief Log the output, and remove file */ -static void sms_log(sms_t * h, char status) -{ - int o; - - if (*h->oa == '\0' && *h->da == '\0') - return; - o = open(log_file, O_CREAT | O_APPEND | O_WRONLY, AST_FILE_MODE); - if (o >= 0) { - char line[1000], mrs[3] = "", *p; - char buf[30]; - unsigned char n; - - if (h->mr >= 0) - snprintf(mrs, sizeof(mrs), "%02X", h->mr); - snprintf(line, sizeof(line), "%s %c%c%c%s %s %s %s ", - isodate(time(NULL), buf, sizeof(buf)), - status, h->rx ? 'I' : 'O', h->smsc ? 'S' : 'M', mrs, h->queue, - S_OR(h->oa, "-"), S_OR(h->da, "-") ); - p = line + strlen(line); - for (n = 0; n < h->udl; n++) { - if (h->ud[n] == '\\') { - *p++ = '\\'; - *p++ = '\\'; - } else if (h->ud[n] == '\n') { - *p++ = '\\'; - *p++ = 'n'; - } else if (h->ud[n] == '\r') { - *p++ = '\\'; - *p++ = 'r'; - } else if (h->ud[n] < 32 || h->ud[n] == 127) - *p++ = 191; - else - *p++ = h->ud[n]; - } - *p++ = '\n'; - *p = 0; - write(o, line, strlen(line)); - close(o); - } - *h->oa = *h->da = h->udl = 0; -} - -/*! \brief parse and delete a file */ -static void sms_readfile(sms_t * h, char *fn) -{ - char line[1000]; - FILE *s; - char dcsset = 0; /* if DSC set */ - ast_log(LOG_EVENT, "Sending %s\n", fn); - h->rx = h->udl = *h->oa = *h->da = h->pid = h->srr = h->udhi = h->rp = h->vp = h->udhl = 0; - h->mr = -1; - h->dcs = 0xF1; /* normal messages class 1 */ - h->scts = ast_tvnow(); - s = fopen(fn, "r"); - if (s) { - if (unlink(fn)) { /* concurrent access, we lost */ - fclose(s); - return; - } - while (fgets (line, sizeof(line), s)) { /* process line in file */ - char *p; - void *pp = &p; - for (p = line; *p && *p != '\n' && *p != '\r'; p++); - *p = 0; /* strip eoln */ - p = line; - if (!*p || *p == ';') - continue; /* blank line or comment, ignore */ - while (isalnum(*p)) { - *p = tolower (*p); - p++; - } - while (isspace (*p)) - *p++ = 0; - if (*p == '=') { - *p++ = 0; - if (!strcmp(line, "ud")) { /* parse message (UTF-8) */ - unsigned char o = 0; - memcpy(h->udtxt, p, SMSLEN); /* for protocol 2 */ - while (*p && o < SMSLEN) - h->ud[o++] = utf8decode(pp); - h->udl = o; - if (*p) - ast_log(LOG_WARNING, "UD too long in %s\n", fn); - } else { - while (isspace (*p)) - p++; - if (!strcmp(line, "oa") && strlen(p) < sizeof(h->oa)) - numcpy (h->oa, p); - else if (!strcmp(line, "da") && strlen(p) < sizeof(h->oa)) - numcpy (h->da, p); - else if (!strcmp(line, "pid")) - h->pid = atoi(p); - else if (!strcmp(line, "dcs")) { - h->dcs = atoi(p); - dcsset = 1; - } else if (!strcmp(line, "mr")) - h->mr = atoi(p); - else if (!strcmp(line, "srr")) - h->srr = (atoi(p) ? 1 : 0); - else if (!strcmp(line, "vp")) - h->vp = atoi(p); - else if (!strcmp(line, "rp")) - h->rp = (atoi(p) ? 1 : 0); - else if (!strcmp(line, "scts")) { /* get date/time */ - int Y, - m, - d, - H, - M, - S; - if (sscanf (p, "%d-%d-%dT%d:%d:%d", &Y, &m, &d, &H, &M, &S) == 6) { - struct ast_tm t = { 0, }; - t.tm_year = Y - 1900; - t.tm_mon = m - 1; - t.tm_mday = d; - t.tm_hour = H; - t.tm_min = M; - t.tm_sec = S; - t.tm_isdst = -1; - h->scts = ast_mktime(&t, NULL); - if (h->scts.tv_sec == 0) - ast_log(LOG_WARNING, "Bad date/timein %s: %s", fn, p); - } - } else - ast_log(LOG_WARNING, "Cannot parse in %s: %s=%si\n", fn, line, p); - } - } else if (*p == '#') { /* raw hex format */ - *p++ = 0; - if (*p == '#') { - p++; - if (!strcmp(line, "ud")) { /* user data */ - int o = 0; - while (*p && o < SMSLEN) { - if (isxdigit(*p) && isxdigit(p[1]) && isxdigit(p[2]) && isxdigit(p[3])) { - h->ud[o++] = - (((isalpha(*p) ? 9 : 0) + (*p & 0xF)) << 12) + - (((isalpha(p[1]) ? 9 : 0) + (p[1] & 0xF)) << 8) + - (((isalpha(p[2]) ? 9 : 0) + (p[2] & 0xF)) << 4) + ((isalpha(p[3]) ? 9 : 0) + (p[3] & 0xF)); - p += 4; - } else - break; - } - h->udl = o; - if (*p) - ast_log(LOG_WARNING, "UD too long / invalid UCS-2 hex in %s\n", fn); - } else - ast_log(LOG_WARNING, "Only ud can use ## format, %s\n", fn); - } else if (!strcmp(line, "ud")) { /* user data */ - int o = 0; - while (*p && o < SMSLEN) { - if (isxdigit(*p) && isxdigit(p[1])) { - h->ud[o++] = (((isalpha(*p) ? 9 : 0) + (*p & 0xF)) << 4) + ((isalpha(p[1]) ? 9 : 0) + (p[1] & 0xF)); - p += 2; - } else - break; - } - h->udl = o; - if (*p) - ast_log(LOG_WARNING, "UD too long / invalid UCS-1 hex in %s\n", fn); - } else if (!strcmp(line, "udh")) { /* user data header */ - unsigned char o = 0; - h->udhi = 1; - while (*p && o < SMSLEN) { - if (isxdigit(*p) && isxdigit(p[1])) { - h->udh[o] = (((isalpha(*p) ? 9 : 0) + (*p & 0xF)) << 4) + ((isalpha(p[1]) ? 9 : 0) + (p[1] & 0xF)); - o++; - p += 2; - } else - break; - } - h->udhl = o; - if (*p) - ast_log(LOG_WARNING, "UDH too long / invalid hex in %s\n", fn); - } else - ast_log(LOG_WARNING, "Only ud and udh can use # format, %s\n", fn); - } else - ast_log(LOG_WARNING, "Cannot parse in %s: %s\n", fn, line); - } - fclose(s); - if (!dcsset && packsms7(0, h->udhl, h->udh, h->udl, h->ud) < 0) { - if (packsms8(0, h->udhl, h->udh, h->udl, h->ud) < 0) { - if (packsms16(0, h->udhl, h->udh, h->udl, h->ud) < 0) - ast_log(LOG_WARNING, "Invalid UTF-8 message even for UCS-2 (%s)\n", fn); - else { - h->dcs = 0x08; /* default to 16 bit */ - ast_log(LOG_WARNING, "Sending in 16 bit format(%s)\n", fn); - } - } else { - h->dcs = 0xF5; /* default to 8 bit */ - ast_log(LOG_WARNING, "Sending in 8 bit format(%s)\n", fn); - } - } - if (is7bit(h->dcs) && packsms7(0, h->udhl, h->udh, h->udl, h->ud) < 0) - ast_log(LOG_WARNING, "Invalid 7 bit GSM data %s\n", fn); - if (is8bit(h->dcs) && packsms8(0, h->udhl, h->udh, h->udl, h->ud) < 0) - ast_log(LOG_WARNING, "Invalid 8 bit data %s\n", fn); - if (is16bit(h->dcs) && packsms16(0, h->udhl, h->udh, h->udl, h->ud) < 0) - ast_log(LOG_WARNING, "Invalid 16 bit data %s\n", fn); - } -} - -/*! \brief white a received text message to a file */ -static void sms_writefile(sms_t * h) -{ - char fn[200] = "", fn2[200] = ""; - char buf[30]; - FILE *o; - - snprintf(fn, sizeof(fn), "%s/sms/%s", ast_config_AST_SPOOL_DIR, h->smsc ? h->rx ? "morx" : "mttx" : h->rx ? "mtrx" : "motx"); - ast_mkdir(fn, 0777); /* ensure it exists */ - ast_copy_string(fn2, fn, sizeof(fn2)); - snprintf(fn2 + strlen(fn2), sizeof(fn2) - strlen(fn2), "/%s.%s-%d", h->queue, isodate(h->scts.tv_sec, buf, sizeof(buf)), seq++); - snprintf(fn + strlen(fn), sizeof(fn) - strlen(fn), "/.%s", fn2 + strlen(fn) + 1); - o = fopen(fn, "w"); - if (o == NULL) - return; - - if (*h->oa) - fprintf(o, "oa=%s\n", h->oa); - if (*h->da) - fprintf(o, "da=%s\n", h->da); - if (h->udhi) { - unsigned int p; - fprintf(o, "udh#"); - for (p = 0; p < h->udhl; p++) - fprintf(o, "%02X", h->udh[p]); - fprintf(o, "\n"); - } - if (h->udl) { - unsigned int p; - for (p = 0; p < h->udl && h->ud[p] >= ' '; p++); - if (p < h->udl) - fputc(';', o); /* cannot use ud=, but include as a comment for human readable */ - fprintf(o, "ud="); - for (p = 0; p < h->udl; p++) { - unsigned short v = h->ud[p]; - if (v < 32) - fputc(191, o); - else if (v < 0x80) - fputc(v, o); - else if (v < 0x800) - { - fputc(0xC0 + (v >> 6), o); - fputc(0x80 + (v & 0x3F), o); - } else - { - fputc(0xE0 + (v >> 12), o); - fputc(0x80 + ((v >> 6) & 0x3F), o); - fputc(0x80 + (v & 0x3F), o); - } - } - fprintf(o, "\n"); - for (p = 0; p < h->udl && h->ud[p] >= ' '; p++); - if (p < h->udl) { - for (p = 0; p < h->udl && h->ud[p] < 0x100; p++); - if (p == h->udl) { /* can write in ucs-1 hex */ - fprintf(o, "ud#"); - for (p = 0; p < h->udl; p++) - fprintf(o, "%02X", h->ud[p]); - fprintf(o, "\n"); - } else { /* write in UCS-2 */ - fprintf(o, "ud##"); - for (p = 0; p < h->udl; p++) - fprintf(o, "%04X", h->ud[p]); - fprintf(o, "\n"); - } - } - } - if (h->scts.tv_sec) { - char buf[30]; - fprintf(o, "scts=%s\n", isodate(h->scts.tv_sec, buf, sizeof(buf))); - } - if (h->pid) - fprintf(o, "pid=%d\n", h->pid); - if (h->dcs != 0xF1) - fprintf(o, "dcs=%d\n", h->dcs); - if (h->vp) - fprintf(o, "vp=%d\n", h->vp); - if (h->srr) - fprintf(o, "srr=1\n"); - if (h->mr >= 0) - fprintf(o, "mr=%d\n", h->mr); - if (h->rp) - fprintf(o, "rp=1\n"); - fclose(o); - if (rename(fn, fn2)) - unlink(fn); - else - ast_log(LOG_EVENT, "Received to %s\n", fn2); -} - -/*! \brief read dir skipping dot files... */ -static struct dirent *readdirqueue(DIR *d, char *queue) -{ - struct dirent *f; - do { - f = readdir(d); - } while (f && (*f->d_name == '.' || strncmp(f->d_name, queue, strlen(queue)) || f->d_name[strlen(queue)] != '.')); - return f; -} - -/*! \brief handle the incoming message */ -static unsigned char sms_handleincoming (sms_t * h) -{ - unsigned char p = 3; - if (h->smsc) { /* SMSC */ - if ((h->imsg[2] & 3) == 1) { /* SMS-SUBMIT */ - h->udhl = h->udl = 0; - h->vp = 0; - h->srr = ((h->imsg[2] & 0x20) ? 1 : 0); - h->udhi = ((h->imsg[2] & 0x40) ? 1 : 0); - h->rp = ((h->imsg[2] & 0x80) ? 1 : 0); - ast_copy_string(h->oa, h->cli, sizeof(h->oa)); - h->scts = ast_tvnow(); - h->mr = h->imsg[p++]; - p += unpackaddress(h->da, h->imsg + p); - h->pid = h->imsg[p++]; - h->dcs = h->imsg[p++]; - if ((h->imsg[2] & 0x18) == 0x10) { /* relative VP */ - if (h->imsg[p] < 144) - h->vp = (h->imsg[p] + 1) * 5; - else if (h->imsg[p] < 168) - h->vp = 720 + (h->imsg[p] - 143) * 30; - else if (h->imsg[p] < 197) - h->vp = (h->imsg[p] - 166) * 1440; - else - h->vp = (h->imsg[p] - 192) * 10080; - p++; - } else if (h->imsg[2] & 0x18) - p += 7; /* ignore enhanced / absolute VP */ - p += unpacksms(h->dcs, h->imsg + p, h->udh, &h->udhl, h->ud, &h->udl, h->udhi); - h->rx = 1; /* received message */ - sms_writefile(h); /* write the file */ - if (p != h->imsg[1] + 2) { - ast_log(LOG_WARNING, "Mismatch receive unpacking %d/%d\n", p, h->imsg[1] + 2); - return 0xFF; /* duh! */ - } - } else { - ast_log(LOG_WARNING, "Unknown message type %02X\n", h->imsg[2]); - return 0xFF; - } - } else { /* client */ - if (!(h->imsg[2] & 3)) { /* SMS-DELIVER */ - *h->da = h->srr = h->rp = h->vp = h->udhi = h->udhl = h->udl = 0; - h->srr = ((h->imsg[2] & 0x20) ? 1 : 0); - h->udhi = ((h->imsg[2] & 0x40) ? 1 : 0); - h->rp = ((h->imsg[2] & 0x80) ? 1 : 0); - h->mr = -1; - p += unpackaddress(h->oa, h->imsg + p); - h->pid = h->imsg[p++]; - h->dcs = h->imsg[p++]; - h->scts.tv_sec = unpackdate(h->imsg + p); - p += 7; - p += unpacksms(h->dcs, h->imsg + p, h->udh, &h->udhl, h->ud, &h->udl, h->udhi); - h->rx = 1; /* received message */ - sms_writefile(h); /* write the file */ - if (p != h->imsg[1] + 2) { - ast_log(LOG_WARNING, "Mismatch receive unpacking %d/%d\n", p, h->imsg[1] + 2); - return 0xFF; /* duh! */ - } - } else { - ast_log(LOG_WARNING, "Unknown message type %02X\n", h->imsg[2]); - return 0xFF; - } - } - return 0; /* no error */ -} - -#ifdef SOLARIS -#define NAME_MAX 1024 -#endif - -/*! - * Add data to a protocol 2 message. - * Use the length field (h->omsg[1]) as a pointer to the next free position. - */ -static void adddata_proto2(sms_t *h, unsigned char msg, char *data, int size) -{ - int x = h->omsg[1]+2; /* Get current position */ - if (x == 2) - x += 2; /* First: skip Payload length (set later) */ - h->omsg[x++] = msg; /* Message code */ - h->omsg[x++] = (unsigned char)size; /* Data size Low */ - h->omsg[x++] = 0; /* Data size Hi */ - for (; size > 0 ; size--) - h->omsg[x++] = *data++; - h->omsg[1] = x - 2; /* Frame size */ - h->omsg[2] = x - 4; /* Payload length (Lo) */ - h->omsg[3] = 0; /* Payload length (Hi) */ -} - -static void putdummydata_proto2(sms_t *h) -{ - adddata_proto2(h, 0x10, "\0", 1); /* Media Identifier > SMS */ - adddata_proto2(h, 0x11, "\0\0\0\0\0\0", 6); /* Firmware version */ - adddata_proto2(h, 0x12, "\2\0\4", 3); /* SMS provider ID */ - adddata_proto2(h, 0x13, h->udtxt, h->udl); /* Body */ -} - -static void sms_compose2(sms_t *h, int more) -{ - struct ast_tm tm; - struct timeval tv = h->scts; - char stm[9]; - - h->omsg[0] = 0x00; /* set later... */ - h->omsg[1] = 0; - putdummydata_proto2(h); - if (h->smsc) { /* deliver */ - h->omsg[0] = 0x11; /* SMS_DELIVERY */ - /* Required: 10 11 12 13 14 15 17 (seems they must be ordered!) */ - ast_localtime(&tv, &tm, NULL); - sprintf(stm, "%02d%02d%02d%02d", tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min); /* Date mmddHHMM */ - adddata_proto2(h, 0x14, stm, 8); /* Date */ - if (*h->oa == 0) - strcpy(h->oa, "00000000"); - adddata_proto2(h, 0x15, h->oa, strlen(h->oa)); /* Originator */ - adddata_proto2(h, 0x17, "\1", 1); /* Calling Terminal ID */ - } else { /* submit */ - h->omsg[0] = 0x10; /* SMS_SUBMIT */ - /* Required: 10 11 12 13 17 18 1B 1C (seems they must be ordered!) */ - adddata_proto2(h, 0x17, "\1", 1); /* Calling Terminal ID */ - if (*h->da == 0) - strcpy(h->da, "00000000"); - adddata_proto2(h, 0x18, h->da, strlen(h->da)); /* Originator */ - adddata_proto2(h, 0x1B, "\1", 1); /* Called Terminal ID */ - adddata_proto2(h, 0x1C, "\0\0\0", 3); /* Notification */ - } -} - -static void putdummydata_proto2(sms_t *h); - -#define MAX_DEBUG_LEN 300 -static char *sms_hexdump(unsigned char buf[], int size, char *s /* destination */) -{ - char *p; - int f; - - for (p = s, f = 0; f < size && f < MAX_DEBUG_LEN; f++, p += 3) - sprintf(p, "%02X ", (unsigned char)buf[f]); - return(s); -} - - -/*! \brief sms_handleincoming_proto2: handle the incoming message */ -static int sms_handleincoming_proto2(sms_t *h) -{ - int f, i, sz = 0; - int msg, msgsz; - struct ast_tm tm; - struct timeval tv = { 0, 0 }; - char debug_buf[MAX_DEBUG_LEN * 3 + 1]; - - sz = h->imsg[1] + 2; - /* ast_verb(3, "SMS-P2 Frame: %s\n", sms_hexdump(h->imsg, sz, debug_buf)); */ - - /* Parse message body (called payload) */ - tv = h->scts = ast_tvnow(); - for (f = 4; f < sz; ) { - msg = h->imsg[f++]; - msgsz = h->imsg[f++]; - msgsz += (h->imsg[f++] * 256); - switch (msg) { - case 0x13: /* Body */ - ast_verb(3, "SMS-P2 Body#%02X=[%.*s]\n", msg, msgsz, &h->imsg[f]); - if (msgsz >= sizeof(h->imsg)) - msgsz = sizeof(h->imsg) - 1; - for (i = 0; i < msgsz; i++) - h->ud[i] = h->imsg[f + i]; - h->udl = msgsz; - break; - case 0x14: /* Date SCTS */ - tv = h->scts = ast_tvnow(); - ast_localtime(&tv, &tm, NULL); - tm.tm_mon = ( (h->imsg[f] * 10) + h->imsg[f + 1] ) - 1; - tm.tm_mday = ( (h->imsg[f + 2] * 10) + h->imsg[f + 3] ); - tm.tm_hour = ( (h->imsg[f + 4] * 10) + h->imsg[f + 5] ); - tm.tm_min = ( (h->imsg[f + 6] * 10) + h->imsg[f + 7] ); - tm.tm_sec = 0; - h->scts = ast_mktime(&tm, NULL); - ast_verb(3, "SMS-P2 Date#%02X=%02d/%02d %02d:%02d\n", msg, tm.tm_mday, tm.tm_mon + 1, tm.tm_hour, tm.tm_min); - break; - case 0x15: /* Calling line (from SMSC) */ - if (msgsz >= 20) - msgsz = 20 - 1; - ast_verb(3, "SMS-P2 Origin#%02X=[%.*s]\n", msg, msgsz, &h->imsg[f]); - ast_copy_string(h->oa, (char *)(&h->imsg[f]), msgsz + 1); - break; - case 0x18: /* Destination(from TE/phone) */ - if (msgsz >= 20) - msgsz = 20 - 1; - ast_verb(3, "SMS-P2 Destination#%02X=[%.*s]\n", msg, msgsz, &h->imsg[f]); - ast_copy_string(h->da, (char *)(&h->imsg[f]), msgsz + 1); - break; - case 0x1C: /* Notify */ - ast_verb(3, "SMS-P2 Notify#%02X=%s\n", msg, sms_hexdump(&h->imsg[f], 3, debug_buf)); - break; - default: - ast_verb(3, "SMS-P2 Par#%02X [%d]: %s\n", msg, msgsz, sms_hexdump(&h->imsg[f], msgsz, debug_buf)); - break; - } - f+=msgsz; /* Skip to next */ - } - h->rx = 1; /* received message */ - sms_writefile(h); /* write the file */ - return 0; /* no error */ -} - -#if 0 -static void smssend(sms_t *h, char *c) -{ - int f, x; - for (f = 0; f < strlen(c); f++) { - sscanf(&c[f*3], "%x", &x); - h->omsg[f] = x; - } - sms_messagetx(h); -} -#endif - -static void sms_nextoutgoing (sms_t *h); - -static void sms_messagerx2(sms_t * h) -{ - int p = h->imsg[0] & DLL_SMS_MASK ; /* mask the high bit */ - int cause; - -#define DLL2_ACK(h) ((h->framenumber & 1) ? DLL2_SMS_ACK1: DLL2_SMS_ACK1) - switch (p) { - case DLL2_SMS_EST: /* Protocol 2: Connection ready (fake): send message */ - sms_nextoutgoing (h); - /* smssend(h,"11 29 27 00 10 01 00 00 11 06 00 00 00 00 00 00 00 12 03 00 02 00 04 13 01 00 41 14 08 00 30 39 31 35 30 02 30 02 15 02 00 39 30 "); */ - break; - - case DLL2_SMS_INFO_MO: /* transport SMS_SUBMIT */ - case DLL2_SMS_INFO_MT: /* transport SMS_DELIVERY */ - cause = sms_handleincoming_proto2(h); - if (!cause) /* ACK */ - sms_log(h, 'Y'); - h->omsg[0] = DLL2_ACK(h); - h->omsg[1] = 0x06; /* msg len */ - h->omsg[2] = 0x04; /* payload len */ - h->omsg[3] = 0x00; /* payload len */ - h->omsg[4] = 0x1f; /* Response type */ - h->omsg[5] = 0x01; /* parameter len */ - h->omsg[6] = 0x00; /* parameter len */ - h->omsg[7] = cause; /* CONFIRM or error */ - sms_messagetx(h); - break; - - case DLL2_SMS_NACK: /* Protocol 2: SMS_NAK */ - h->omsg[0] = DLL2_SMS_REL; /* SMS_REL */ - h->omsg[1] = 0x00; /* msg len */ - sms_messagetx(h); - break; - - case DLL2_SMS_ACK0: - case DLL2_SMS_ACK1: - /* SMS_ACK also transport SMS_SUBMIT or SMS_DELIVERY */ - if ( (h->omsg[0] & DLL_SMS_MASK) == DLL2_SMS_REL) { - /* a response to our Release, just hangup */ - h->hangup = 1; /* hangup */ - } else { - /* XXX depending on what we are.. */ - ast_log(LOG_NOTICE, "SMS_SUBMIT or SMS_DELIVERY"); - sms_nextoutgoing (h); - } - break; - - case DLL2_SMS_REL: /* Protocol 2: SMS_REL (hangup req) */ - h->omsg[0] = DLL2_ACK(h); - h->omsg[1] = 0; - sms_messagetx(h); - break; - } -} - -/*! \brief compose a message for protocol 1 */ -static void sms_compose1(sms_t *h, int more) -{ - unsigned int p = 2; /* next byte to write. Skip type and len */ - - h->omsg[0] = 0x91; /* SMS_DATA */ - if (h->smsc) { /* deliver */ - h->omsg[p++] = (more ? 4 : 0) + ((h->udhl > 0) ? 0x40 : 0); - p += packaddress(h->omsg + p, h->oa); - h->omsg[p++] = h->pid; - h->omsg[p++] = h->dcs; - packdate(h->omsg + p, h->scts.tv_sec); - p += 7; - p += packsms(h->dcs, h->omsg + p, h->udhl, h->udh, h->udl, h->ud); - } else { /* submit */ - h->omsg[p++] = - 0x01 + (more ? 4 : 0) + (h->srr ? 0x20 : 0) + (h->rp ? 0x80 : 0) + (h->vp ? 0x10 : 0) + (h->udhi ? 0x40 : 0); - if (h->mr < 0) - h->mr = message_ref++; - h->omsg[p++] = h->mr; - p += packaddress(h->omsg + p, h->da); - h->omsg[p++] = h->pid; - h->omsg[p++] = h->dcs; - if (h->vp) { /* relative VP */ - if (h->vp < 720) - h->omsg[p++] = (h->vp + 4) / 5 - 1; - else if (h->vp < 1440) - h->omsg[p++] = (h->vp - 720 + 29) / 30 + 143; - else if (h->vp < 43200) - h->omsg[p++] = (h->vp + 1439) / 1440 + 166; - else if (h->vp < 635040) - h->omsg[p++] = (h->vp + 10079) / 10080 + 192; - else - h->omsg[p++] = 255; /* max */ - } - p += packsms(h->dcs, h->omsg + p, h->udhl, h->udh, h->udl, h->ud); - } - h->omsg[1] = p - 2; -} - -/*! \brief find and fill in next message, or send a REL if none waiting */ -static void sms_nextoutgoing (sms_t * h) -{ - char fn[100 + NAME_MAX] = ""; - DIR *d; - char more = 0; - - *h->da = *h->oa = '\0'; /* clear destinations */ - h->rx = 0; /* outgoing message */ - snprintf(fn, sizeof(fn), "%s/sms/%s", ast_config_AST_SPOOL_DIR, h->smsc ? "mttx" : "motx"); - ast_mkdir(fn, 0777); /* ensure it exists */ - d = opendir(fn); - if (d) { - struct dirent *f = readdirqueue(d, h->queue); - if (f) { - snprintf(fn + strlen(fn), sizeof(fn) - strlen(fn), "/%s", f->d_name); - sms_readfile(h, fn); - if (readdirqueue(d, h->queue)) - more = 1; /* more to send */ - } - closedir(d); - } - if (*h->da || *h->oa) { /* message to send */ - if (h->protocol == 2) - sms_compose2(h, more); - else - sms_compose1(h, more); - } else { /* no message */ - if (h->protocol == 2) { - h->omsg[0] = 0x17; /* SMS_REL */ - h->omsg[1] = 0; - } else { - h->omsg[0] = 0x94; /* SMS_REL */ - h->omsg[1] = 0; - } - } - sms_messagetx(h); -} - -#define DIR_RX 1 -#define DIR_TX 2 -static void sms_debug (int dir, sms_t *h) -{ - char txt[259 * 3 + 1]; - char *p = txt; /* always long enough */ - unsigned char *msg = (dir == DIR_RX) ? h->imsg : h->omsg; - int n = (dir == DIR_RX) ? h->ibytep : msg[1] + 2; - int q = 0; - while (q < n && q < 30) { - sprintf(p, " %02X", msg[q++]); - p += 3; - } - if (q < n) - sprintf(p, "..."); - ast_verb(3, "SMS %s%s\n", dir == DIR_RX ? "RX" : "TX", txt); -} - - -static void sms_messagerx(sms_t * h) -{ - int cause; - - sms_debug (DIR_RX, h); - if (h->protocol == 2) { - sms_messagerx2(h); - return; - } - /* parse incoming message for Protocol 1 */ - switch (h->imsg[0]) { - case 0x91: /* SMS_DATA */ - cause = sms_handleincoming (h); - if (!cause) { - sms_log(h, 'Y'); - h->omsg[0] = 0x95; /* SMS_ACK */ - h->omsg[1] = 0x02; - h->omsg[2] = 0x00; /* deliver report */ - h->omsg[3] = 0x00; /* no parameters */ - } else { /* NACK */ - sms_log(h, 'N'); - h->omsg[0] = 0x96; /* SMS_NACK */ - h->omsg[1] = 3; - h->omsg[2] = 0; /* delivery report */ - h->omsg[3] = cause; /* cause */ - h->omsg[4] = 0; /* no parameters */ - } - sms_messagetx(h); - break; - - case 0x92: /* SMS_ERROR */ - h->err = 1; - sms_messagetx(h); /* send whatever we sent again */ - break; - case 0x93: /* SMS_EST */ - sms_nextoutgoing (h); - break; - case 0x94: /* SMS_REL */ - h->hangup = 1; /* hangup */ - break; - case 0x95: /* SMS_ACK */ - sms_log(h, 'Y'); - sms_nextoutgoing (h); - break; - case 0x96: /* SMS_NACK */ - h->err = 1; - sms_log(h, 'N'); - sms_nextoutgoing (h); - break; - default: /* Unknown */ - h->omsg[0] = 0x92; /* SMS_ERROR */ - h->omsg[1] = 1; - h->omsg[2] = 3; /* unknown message type; */ - sms_messagetx(h); - break; - } -} - -static void sms_messagetx(sms_t * h) -{ - unsigned char c = 0, p; - int len = h->omsg[1] + 2; /* total message length excluding checksum */ - - for (p = 0; p < len; p++) /* compute checksum */ - c += h->omsg[p]; - h->omsg[len] = 0 - c; /* actually, (256 - (c & 0fxx)) & 0xff) */ - sms_debug(DIR_TX, h); - h->framenumber++; /* Proto 2 */ - h->obyte = 1; /* send mark ('1') at the beginning */ - h->opause = 200; - /* Change the initial message delay. BT requires 300ms, - * but for others this might be way too much and the phone - * could time out. XXX make it configurable. - */ - if (h->omsg[0] == 0x93) - h->opause = 8 * h->opause_0; /* initial message delay */ - h->obytep = 0; - h->obitp = 0; - if (h->protocol == 2) { - h->oseizure = 300; /* Proto 2: 300bits (or more ?) */ - h->obyte = 0; /* Seizure starts with space (0) */ - h->opause = 400; - } else { - h->oseizure = 0; /* Proto 1: No seizure */ - } - /* Note - setting osync triggers the generator */ - h->osync = OSYNC_BITS; /* 80 sync bits */ - h->obyten = len + 1; /* bytes to send (including checksum) */ -} - -/*! - * outgoing data are produced by this generator function, that reads from - * the descriptor whether it has data to send and which ones. - */ -static int sms_generate(struct ast_channel *chan, void *data, int len, int samples) -{ - struct ast_frame f = { 0 }; -#define MAXSAMPLES (800) - output_t *buf; - sms_t *h = data; - int i; - - if (samples > MAXSAMPLES) { - ast_log(LOG_WARNING, "Only doing %d samples (%d requested)\n", - MAXSAMPLES, samples); - samples = MAXSAMPLES; - } - len = samples * sizeof(*buf) + AST_FRIENDLY_OFFSET; - buf = alloca(len); - - f.frametype = AST_FRAME_VOICE; - f.subclass = __OUT_FMT; - f.datalen = samples * sizeof(*buf); - f.offset = AST_FRIENDLY_OFFSET; - f.mallocd = 0; - f.data = buf; - f.samples = samples; - f.src = "app_sms"; - /* create a buffer containing the digital sms pattern */ - for (i = 0; i < samples; i++) { - buf[i] = wave_out[0]; /* default is silence */ - - if (h->opause) - h->opause--; - else if (h->obyten || h->osync) { /* sending data */ - buf[i] = wave_out[h->ophase]; - h->ophase += (h->obyte & 1) ? 13 : 21; /* compute next phase */ - if (h->ophase >= 80) - h->ophase -= 80; - if ((h->ophasep += 12) >= 80) { /* time to send the next bit */ - h->ophasep -= 80; - if (h->oseizure > 0) { /* sending channel seizure (proto 2) */ - h->oseizure--; - h->obyte ^= 1; /* toggle low bit */ - } else if (h->osync) { - h->obyte = 1; /* send mark as sync bit */ - h->osync--; /* sending sync bits */ - if (h->osync == 0 && h->protocol == 2 && h->omsg[0] == DLL2_SMS_EST) { - h->obytep = h->obyten = 0; /* we are done */ - } - } else { - h->obitp++; - if (h->obitp == 1) - h->obyte = 0; /* start bit; */ - else if (h->obitp == 2) - h->obyte = h->omsg[h->obytep]; - else if (h->obitp == 10) { - h->obyte = 1; /* stop bit */ - h->obitp = 0; - h->obytep++; - if (h->obytep == h->obyten) { - h->obytep = h->obyten = 0; /* sent */ - h->osync = 10; /* trailing marks */ - } - } else - h->obyte >>= 1; - } - } - } - } - if (ast_write(chan, &f) < 0) { - ast_log(LOG_WARNING, "Failed to write frame to '%s': %s\n", chan->name, strerror(errno)); - return -1; - } - return 0; -#undef MAXSAMPLES -} - -/*! - * Just return the pointer to the descriptor that we received. - */ -static void *sms_alloc(struct ast_channel *chan, void *sms_t_ptr) -{ - return sms_t_ptr; -} - -static void sms_release(struct ast_channel *chan, void *data) -{ - return; /* nothing to do here. */ -} - -static struct ast_generator smsgen = { - .alloc = sms_alloc, - .release = sms_release, - .generate = sms_generate, -}; - -/*! - * Process an incoming frame, trying to detect the carrier and - * decode the message. The two frequencies are 1300 and 2100 Hz. - * The decoder detects the amplitude of the signal over the last - * few samples, filtering the absolute values with a lowpass filter. - * If the magnitude (h->imag) is large enough, multiply the signal - * by the two carriers, and compute the amplitudes m0 and m1. - * Record the current sample as '0' or '1' depending on which one is greater. - * The last 3 bits are stored in h->ibith, with the count of '1' - * bits in h->ibitt. - * XXX the rest is to be determined. - */ -static void sms_process(sms_t * h, int samples, signed short *data) -{ - int bit; - - /* - * Ignore incoming audio while a packet is being transmitted, - * the protocol is half-duplex. - * Unfortunately this means that if the outbound and incoming - * transmission overlap (which is an error condition anyways), - * we may miss some data and this makes debugging harder. - */ - if (h->obyten || h->osync) - return; - for ( ; samples-- ; data++) { - unsigned long long m0, m1; - if (abs(*data) > h->imag) - h->imag = abs(*data); - else - h->imag = h->imag * 7 / 8; - if (h->imag <= 500) { /* below [arbitrary] threahold: lost carrier */ - if (h->idle++ == 80000) { /* nothing happening */ - ast_log(LOG_NOTICE, "No data, hanging up\n"); - h->hangup = 1; - h->err = 1; - } - if (h->ierr) { /* error */ - ast_log(LOG_NOTICE, "Error %d, hanging up\n", h->ierr); - /* Protocol 1 */ - h->err = 1; - h->omsg[0] = 0x92; /* error */ - h->omsg[1] = 1; - h->omsg[2] = h->ierr; - sms_messagetx(h); /* send error */ - } - h->ierr = h->ibitn = h->ibytep = h->ibytec = 0; - continue; - } - h->idle = 0; - - /* multiply signal by the two carriers. */ - h->ims0 = (h->ims0 * 6 + *data * wave[h->ips0]) / 7; - h->imc0 = (h->imc0 * 6 + *data * wave[h->ipc0]) / 7; - h->ims1 = (h->ims1 * 6 + *data * wave[h->ips1]) / 7; - h->imc1 = (h->imc1 * 6 + *data * wave[h->ipc1]) / 7; - /* compute the amplitudes */ - m0 = h->ims0 * h->ims0 + h->imc0 * h->imc0; - m1 = h->ims1 * h->ims1 + h->imc1 * h->imc1; - - /* advance the sin/cos pointers */ - if ((h->ips0 += 21) >= 80) - h->ips0 -= 80; - if ((h->ipc0 += 21) >= 80) - h->ipc0 -= 80; - if ((h->ips1 += 13) >= 80) - h->ips1 -= 80; - if ((h->ipc1 += 13) >= 80) - h->ipc1 -= 80; - - /* set new bit to 1 or 0 depending on which value is stronger */ - h->ibith <<= 1; - if (m1 > m0) - h->ibith |= 1; - if (h->ibith & 8) - h->ibitt--; - if (h->ibith & 1) - h->ibitt++; - bit = ((h->ibitt > 1) ? 1 : 0); - if (bit != h->ibitl) - h->ibitc = 1; - else - h->ibitc++; - h->ibitl = bit; - if (!h->ibitn && h->ibitc == 4 && !bit) { - h->ibitn = 1; - h->iphasep = 0; - } - if (bit && h->ibitc == 200) { /* sync, restart message */ - /* Protocol 2: empty connnection ready (I am master) */ - if (h->framenumber < 0 && h->ibytec >= 160 && !memcmp(h->imsg, "UUUUUUUUUUUUUUUUUUUU", 20)) { - h->framenumber = 1; - ast_verb(3, "SMS protocol 2 detected\n"); - h->protocol = 2; - h->imsg[0] = 0xff; /* special message (fake) */ - h->imsg[1] = h->imsg[2] = 0x00; - h->ierr = h->ibitn = h->ibytep = h->ibytec = 0; - sms_messagerx(h); - } - h->ierr = h->ibitn = h->ibytep = h->ibytec = 0; - } - if (h->ibitn) { - h->iphasep += 12; - if (h->iphasep >= 80) { /* next bit */ - h->iphasep -= 80; - if (h->ibitn++ == 9) { /* end of byte */ - if (!bit) { /* bad stop bit */ - ast_log(LOG_NOTICE, "bad stop bit"); - h->ierr = 0xFF; /* unknown error */ - } else { - if (h->ibytep < sizeof(h->imsg)) { - h->imsg[h->ibytep] = h->ibytev; - h->ibytec += h->ibytev; - h->ibytep++; - } else if (h->ibytep == sizeof(h->imsg)) { - ast_log(LOG_NOTICE, "msg too large"); - h->ierr = 2; /* bad message length */ - } - if (h->ibytep > 1 && h->ibytep == 3 + h->imsg[1] && !h->ierr) { - if (!h->ibytec) - sms_messagerx(h); - else { - ast_log(LOG_NOTICE, "bad checksum"); - h->ierr = 1; /* bad checksum */ - } - } - } - h->ibitn = 0; - } - h->ibytev = (h->ibytev >> 1) + (bit ? 0x80 : 0); - } - } - } -} - -/* - * Standard argument parsing: - * - one enum for the flags we recognise, - * - one enum for argument indexes - * - AST_APP_OPTIONS() to drive the parsing routine - * - in the function, AST_DECLARE_APP_ARGS(...) for the arguments. - */ -enum { - OPTION_BE_SMSC = (1 << 0), /* act as sms center */ - OPTION_ANSWER = (1 << 1), /* answer on incoming calls */ - OPTION_TWO = (1 << 2), /* Use Protocol Two */ - OPTION_PAUSE = (1 << 3), /* pause before sending data, in ms */ - OPTION_SRR = (1 << 4), /* set srr */ - OPTION_DCS = (1 << 5), /* set dcs */ -} sms_flags; - -enum { - OPTION_ARG_PAUSE = 0, - OPTION_ARG_ARRAY_SIZE -} sms_opt_args; - -AST_APP_OPTIONS(sms_options, { - AST_APP_OPTION('s', OPTION_BE_SMSC), - AST_APP_OPTION('a', OPTION_ANSWER), - AST_APP_OPTION('t', OPTION_TWO), - AST_APP_OPTION('r', OPTION_SRR), - AST_APP_OPTION('o', OPTION_DCS), - AST_APP_OPTION_ARG('p', OPTION_PAUSE, OPTION_ARG_PAUSE), - } ); - -static int sms_exec(struct ast_channel *chan, void *data) -{ - int res = -1; - sms_t h = { 0 }; - /* argument parsing support */ - struct ast_flags sms_flags; - char *parse, *sms_opts[OPTION_ARG_ARRAY_SIZE]; - char *p; - AST_DECLARE_APP_ARGS(sms_args, - AST_APP_ARG(queue); - AST_APP_ARG(options); - AST_APP_ARG(addr); - AST_APP_ARG(body); - ); - - if (!data) { - ast_log(LOG_ERROR, "Requires queue name at least\n"); - return -1; - } - - parse = ast_strdupa(data); /* create a local copy */ - AST_STANDARD_APP_ARGS(sms_args, parse); - if (sms_args.argc > 1) - ast_app_parse_options(sms_options, &sms_flags, sms_opts, sms_args.options); - - ast_verb(1, "sms argc %d queue <%s> opts <%s> addr <%s> body <%s>\n", - sms_args.argc, S_OR(sms_args.queue, ""), - S_OR(sms_args.options, ""), - S_OR(sms_args.addr, ""), - S_OR(sms_args.body, "") ); - - h.ipc0 = h.ipc1 = 20; /* phase for cosine */ - h.dcs = 0xF1; /* default */ - - if (chan->cid.cid_num) - ast_copy_string(h.cli, chan->cid.cid_num, sizeof(h.cli)); - - if (ast_strlen_zero(sms_args.queue)) { - ast_log(LOG_ERROR, "Requires queue name\n"); - goto done; - } - if (strlen(sms_args.queue) >= sizeof(h.queue)) { - ast_log(LOG_ERROR, "Queue name too long\n"); - goto done; - } - ast_copy_string(h.queue, sms_args.queue, sizeof(h.queue)); - - for (p = h.queue; *p; p++) - if (!isalnum(*p)) - *p = '-'; /* make very safe for filenames */ - - h.smsc = ast_test_flag(&sms_flags, OPTION_BE_SMSC); - h.protocol = ast_test_flag(&sms_flags, OPTION_TWO) ? 2 : 1; - if (!ast_strlen_zero(sms_opts[OPTION_ARG_PAUSE])) - h.opause_0 = atoi(sms_opts[OPTION_ARG_PAUSE]); - if (h.opause_0 < 25 || h.opause_0 > 2000) - h.opause_0 = 300; /* default 300ms */ - ast_verb(1, "initial delay %dms\n", h.opause_0); - - - /* the following apply if there is an arg3/4 and apply to the created message file */ - if (ast_test_flag(&sms_flags, OPTION_SRR)) - h.srr = 1; - if (ast_test_flag(&sms_flags, OPTION_DCS)) - h.dcs = 1; -#if 0 - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': /* set the pid for saved local message */ - h.pid = 0x40 + (*d & 0xF); - break; - } -#endif - if (sms_args.argc > 2) { - unsigned char *up; - - /* submitting a message, not taking call. */ - /* deprecated, use smsq instead */ - h.scts = ast_tvnow(); - if (ast_strlen_zero(sms_args.addr) || strlen(sms_args.addr) >= sizeof(h.oa)) { - ast_log(LOG_ERROR, "Address too long %s\n", sms_args.addr); - goto done; - } - if (h.smsc) - ast_copy_string(h.oa, sms_args.addr, sizeof(h.oa)); - else { - ast_copy_string(h.da, sms_args.addr, sizeof(h.da)); - ast_copy_string(h.oa, h.cli, sizeof(h.oa)); - } - h.udl = 0; - if (ast_strlen_zero(sms_args.body)) { - ast_log(LOG_ERROR, "Missing body for %s\n", sms_args.addr); - goto done; - } - up = (unsigned char *)sms_args.body; - while (*up && h.udl < SMSLEN) - h.ud[h.udl++] = utf8decode(&up); - if (is7bit(h.dcs) && packsms7(0, h.udhl, h.udh, h.udl, h.ud) < 0) { - ast_log(LOG_WARNING, "Invalid 7 bit GSM data\n"); - goto done; - } - if (is8bit(h.dcs) && packsms8(0, h.udhl, h.udh, h.udl, h.ud) < 0) { - ast_log(LOG_WARNING, "Invalid 8 bit data\n"); - goto done; - } - if (is16bit(h.dcs) && packsms16(0, h.udhl, h.udh, h.udl, h.ud) < 0) { - ast_log(LOG_WARNING, "Invalid 16 bit data\n"); - goto done; - } - h.rx = 0; /* sent message */ - h.mr = -1; - sms_writefile(&h); - res = h.err; - goto done; - } - - if (ast_test_flag(&sms_flags, OPTION_ANSWER)) { - h.framenumber = 1; /* Proto 2 */ - /* set up SMS_EST initial message */ - if (h.protocol == 2) { - h.omsg[0] = DLL2_SMS_EST; - h.omsg[1] = 0; - } else { - h.omsg[0] = DLL1_SMS_EST | DLL1_SMS_COMPLETE; - h.omsg[1] = 0; - } - sms_messagetx(&h); - } - - if (chan->_state != AST_STATE_UP) - ast_answer(chan); - - res = ast_set_write_format(chan, __OUT_FMT); - if (res >= 0) - res = ast_set_read_format(chan, AST_FORMAT_SLINEAR); - if (res < 0) { - ast_log(LOG_ERROR, "Unable to set to linear mode, giving up\n"); - goto done; - } - - if ( (res = ast_activate_generator(chan, &smsgen, &h)) < 0) { - ast_log(LOG_ERROR, "Failed to activate generator on '%s'\n", chan->name); - goto done; - } - - /* Do our thing here */ - for (;;) { - struct ast_frame *f; - int i = ast_waitfor(chan, -1); - if (i < 0) { - ast_log(LOG_NOTICE, "waitfor failed\n"); - break; - } - if (h.hangup) { - ast_log(LOG_NOTICE, "channel hangup\n"); - break; - } - f = ast_read(chan); - if (!f) { - ast_log(LOG_NOTICE, "ast_read failed\n"); - break; - } - if (f->frametype == AST_FRAME_VOICE) { - sms_process(&h, f->samples, f->data); - } - - ast_frfree(f); - } - res = h.err; /* XXX */ - - sms_log(&h, '?'); /* log incomplete message */ -done: - return (res); -} - -static int unload_module(void) -{ - return ast_unregister_application(app); -} - -static int load_module(void) -{ -#ifdef OUTALAW - int p; - for (p = 0; p < 80; p++) - wavea[p] = AST_LIN2A (wave[p]); -#endif - snprintf(log_file, sizeof(log_file), "%s/sms", ast_config_AST_LOG_DIR); - return ast_register_application(app, sms_exec, synopsis, descrip); -} - -AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "SMS/PSTN handler"); |