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Diffstat (limited to 'trunk/channels/iax2-parser.h')
| -rw-r--r-- | trunk/channels/iax2-parser.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/trunk/channels/iax2-parser.h b/trunk/channels/iax2-parser.h new file mode 100644 index 000000000..e40669d3d --- /dev/null +++ b/trunk/channels/iax2-parser.h @@ -0,0 +1,163 @@ +/* + * Asterisk -- A telephony toolkit for Linux. + * + * Implementation of Inter-Asterisk eXchange + * + * Copyright (C) 2003, Digium + * + * Mark Spencer <markster@digium.com> + * + * This program is free software, distributed under the terms of + * the GNU General Public License + */ + +/*!\file + * \brief Implementation of the IAX2 protocol + */ + +#ifndef _IAX2_PARSER_H +#define _IAX2_PARSER_H + +#include "asterisk/linkedlists.h" + +struct iax_ies { + char *called_number; + char *calling_number; + char *calling_ani; + char *calling_name; + int calling_ton; + int calling_tns; + int calling_pres; + char *called_context; + char *username; + char *password; + unsigned int capability; + unsigned int format; + char *codec_prefs; + char *language; + int version; + unsigned short adsicpe; + char *dnid; + char *rdnis; + unsigned int authmethods; + unsigned int encmethods; + char *challenge; + char *md5_result; + char *rsa_result; + struct sockaddr_in *apparent_addr; + unsigned short refresh; + unsigned short dpstatus; + unsigned short callno; + char *cause; + unsigned char causecode; + unsigned char iax_unknown; + int msgcount; + int autoanswer; + int musiconhold; + unsigned int transferid; + unsigned int datetime; + char *devicetype; + char *serviceident; + int firmwarever; + unsigned int fwdesc; + unsigned char *fwdata; + unsigned char fwdatalen; + unsigned char *enckey; + unsigned char enckeylen; + unsigned int provver; + unsigned short samprate; + int provverpres; + unsigned int rr_jitter; + unsigned int rr_loss; + unsigned int rr_pkts; + unsigned short rr_delay; + unsigned int rr_dropped; + unsigned int rr_ooo; + struct ast_variable *vars; + char *osptokenblock[IAX_MAX_OSPBLOCK_NUM]; + unsigned int ospblocklength[IAX_MAX_OSPBLOCK_NUM]; +}; + +#define DIRECTION_INGRESS 1 +#define DIRECTION_OUTGRESS 2 + +struct iax_frame { +#ifdef LIBIAX + struct iax_session *session; + struct iax_event *event; +#else + int sockfd; +#endif + + /* /Our/ call number */ + unsigned short callno; + /* /Their/ call number */ + unsigned short dcallno; + /* Start of raw frame (outgoing only) */ + void *data; + /* Length of frame (outgoing only) */ + int datalen; + /* How many retries so far? */ + int retries; + /* Outgoing relative timestamp (ms) */ + unsigned int ts; + /* How long to wait before retrying */ + int retrytime; + /* Are we received out of order? */ + unsigned int outoforder:1; + /* Have we been sent at all yet? */ + unsigned int sentyet:1; + /* Non-zero if should be sent to transfer peer */ + unsigned int transfer:1; + /* Non-zero if this is the final message */ + unsigned int final:1; + /* Ingress or outgres */ + unsigned int direction:2; + /* Can this frame be cached? */ + unsigned int cacheable:1; + /* Outgoing Packet sequence number */ + int oseqno; + /* Next expected incoming packet sequence number */ + int iseqno; + /* Retransmission ID */ + int retrans; + /* Easy linking */ + AST_LIST_ENTRY(iax_frame) list; + /* Actual, isolated frame header */ + struct ast_frame af; + /*! Amount of space _allocated_ for data */ + size_t afdatalen; + unsigned char unused[AST_FRIENDLY_OFFSET]; + unsigned char afdata[0]; /* Data for frame */ +}; + +struct iax_ie_data { + unsigned char buf[1024]; + int pos; +}; + +/* Choose a different function for output */ +void iax_set_output(void (*output)(const char *data)); +/* Choose a different function for errors */ +void iax_set_error(void (*output)(const char *data)); +void iax_showframe(struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, struct sockaddr_in *sin, int datalen); + +const char *iax_ie2str(int ie); + +int iax_ie_append_raw(struct iax_ie_data *ied, unsigned char ie, const void *data, int datalen); +int iax_ie_append_addr(struct iax_ie_data *ied, unsigned char ie, const struct sockaddr_in *sin); +int iax_ie_append_int(struct iax_ie_data *ied, unsigned char ie, unsigned int value); +int iax_ie_append_short(struct iax_ie_data *ied, unsigned char ie, unsigned short value); +int iax_ie_append_str(struct iax_ie_data *ied, unsigned char ie, const char *str); +int iax_ie_append_byte(struct iax_ie_data *ied, unsigned char ie, unsigned char dat); +int iax_ie_append(struct iax_ie_data *ied, unsigned char ie); +int iax_parse_ies(struct iax_ies *ies, unsigned char *data, int datalen); + +int iax_get_frames(void); +int iax_get_iframes(void); +int iax_get_oframes(void); + +void iax_frame_wrap(struct iax_frame *fr, struct ast_frame *f); +struct iax_frame *iax_frame_new(int direction, int datalen, unsigned int cacheable); +void iax_frame_free(struct iax_frame *fr); +#endif |