mirror of
https://github.com/signalwire/freeswitch.git
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0232f398c7
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@967 d0543943-73ff-0310-b7d9-9358b9ac24b2
237 lines
10 KiB
C
237 lines
10 KiB
C
/*
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* Asterisk -- A telephony toolkit for Linux.
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*
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* Implementation of Inter-Asterisk eXchange
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*
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* Copyright (C) 2003, Digium
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*
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* Mark Spencer <markster@linux-support.net>
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License
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*/
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#ifndef _IAX2_H
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#define _IAX2_H
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typedef long long time_in_ms_t;
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#define iax_abs(x) ((x) >= 0 ? (x) : -(x))
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/* Max version of IAX protocol we support */
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#define IAX_PROTO_VERSION 2
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#define IAX_MAX_CALLS 32768
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#define IAX_FLAG_FULL 0x8000
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#define IAX_FLAG_RETRANS 0x8000
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#define IAX_FLAG_SC_LOG 0x80
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#define IAX_MAX_SHIFT 0x1F
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#define IAX_WINDOW 64
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/* Subclass for AST_FRAME_IAX */
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#define IAX_COMMAND_NEW 1
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#define IAX_COMMAND_PING 2
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#define IAX_COMMAND_PONG 3
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#define IAX_COMMAND_ACK 4
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#define IAX_COMMAND_HANGUP 5
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#define IAX_COMMAND_REJECT 6
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#define IAX_COMMAND_ACCEPT 7
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#define IAX_COMMAND_AUTHREQ 8
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#define IAX_COMMAND_AUTHREP 9
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#define IAX_COMMAND_INVAL 10
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#define IAX_COMMAND_LAGRQ 11
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#define IAX_COMMAND_LAGRP 12
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#define IAX_COMMAND_REGREQ 13 /* Registration request */
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#define IAX_COMMAND_REGAUTH 14 /* Registration authentication required */
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#define IAX_COMMAND_REGACK 15 /* Registration accepted */
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#define IAX_COMMAND_REGREJ 16 /* Registration rejected */
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#define IAX_COMMAND_REGREL 17 /* Force release of registration */
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#define IAX_COMMAND_VNAK 18 /* If we receive voice before valid first voice frame, send this */
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#define IAX_COMMAND_DPREQ 19 /* Request status of a dialplan entry */
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#define IAX_COMMAND_DPREP 20 /* Request status of a dialplan entry */
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#define IAX_COMMAND_DIAL 21 /* Request a dial on channel brought up TBD */
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#define IAX_COMMAND_TXREQ 22 /* Transfer Request */
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#define IAX_COMMAND_TXCNT 23 /* Transfer Connect */
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#define IAX_COMMAND_TXACC 24 /* Transfer Accepted */
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#define IAX_COMMAND_TXREADY 25 /* Transfer ready */
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#define IAX_COMMAND_TXREL 26 /* Transfer release */
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#define IAX_COMMAND_TXREJ 27 /* Transfer reject */
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#define IAX_COMMAND_QUELCH 28 /* Stop audio/video transmission */
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#define IAX_COMMAND_UNQUELCH 29 /* Resume audio/video transmission */
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#define IAX_COMMAND_POKE 30 /* Like ping, but does not require an open connection */
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#define IAX_COMMAND_PAGE 31 /* Paging description */
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#define IAX_COMMAND_MWI 32 /* Stand-alone message waiting indicator */
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#define IAX_COMMAND_UNSUPPORT 33 /* Unsupported message received */
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#define IAX_COMMAND_TRANSFER 34 /* Request remote transfer */
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#define IAX_COMMAND_PROVISION 35 /* Provision device */
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#define IAX_COMMAND_FWDOWNL 36 /* Download firmware */
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#define IAX_COMMAND_FWDATA 37 /* Firmware Data */
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#define IAX_DEFAULT_REG_EXPIRE 60 /* By default require re-registration once per minute */
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#define IAX_LINGER_TIMEOUT 10 /* How long to wait before closing bridged call */
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#define IAX_DEFAULT_PORTNO 4569
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/* IAX Information elements */
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#define IAX_IE_CALLED_NUMBER 1 /* Number/extension being called - string */
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#define IAX_IE_CALLING_NUMBER 2 /* Calling number - string */
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#define IAX_IE_CALLING_ANI 3 /* Calling number ANI for billing - string */
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#define IAX_IE_CALLING_NAME 4 /* Name of caller - string */
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#define IAX_IE_CALLED_CONTEXT 5 /* Context for number - string */
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#define IAX_IE_USERNAME 6 /* Username (peer or user) for authentication - string */
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#define IAX_IE_PASSWORD 7 /* Password for authentication - string */
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#define IAX_IE_CAPABILITY 8 /* Actual codec capability - unsigned int */
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#define IAX_IE_FORMAT 9 /* Desired codec format - unsigned int */
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#define IAX_IE_LANGUAGE 10 /* Desired language - string */
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#define IAX_IE_VERSION 11 /* Protocol version - short */
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#define IAX_IE_ADSICPE 12 /* CPE ADSI capability - short */
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#define IAX_IE_DNID 13 /* Originally dialed DNID - string */
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#define IAX_IE_AUTHMETHODS 14 /* Authentication method(s) - short */
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#define IAX_IE_CHALLENGE 15 /* Challenge data for MD5/RSA - string */
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#define IAX_IE_MD5_RESULT 16 /* MD5 challenge result - string */
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#define IAX_IE_RSA_RESULT 17 /* RSA challenge result - string */
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#define IAX_IE_APPARENT_ADDR 18 /* Apparent address of peer - struct sockaddr_in */
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#define IAX_IE_REFRESH 19 /* When to refresh registration - short */
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#define IAX_IE_DPSTATUS 20 /* Dialplan status - short */
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#define IAX_IE_CALLNO 21 /* Call number of peer - short */
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#define IAX_IE_CAUSE 22 /* Cause - string */
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#define IAX_IE_IAX_UNKNOWN 23 /* Unknown IAX command - byte */
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#define IAX_IE_MSGCOUNT 24 /* How many messages waiting - short */
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#define IAX_IE_AUTOANSWER 25 /* Request auto-answering -- none */
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#define IAX_IE_MUSICONHOLD 26 /* Request musiconhold with QUELCH -- none or string */
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#define IAX_IE_TRANSFERID 27 /* Transfer Request Identifier -- int */
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#define IAX_IE_RDNIS 28 /* Referring DNIS -- string */
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#define IAX_IE_PROVISIONING 29 /* Provisioning info */
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#define IAX_IE_AESPROVISIONING 30 /* AES Provisioning info */
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#define IAX_IE_DATETIME 31 /* Date/Time */
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#define IAX_IE_DEVICETYPE 32 /* Device Type -- string */
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#define IAX_IE_SERVICEIDENT 33 /* Service Identifier -- string */
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#define IAX_IE_FIRMWAREVER 34 /* Firmware revision -- u16 */
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#define IAX_IE_FWBLOCKDESC 35 /* Firmware block description -- u32 */
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#define IAX_IE_FWBLOCKDATA 36 /* Firmware block of data -- raw */
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#define IAX_IE_PROVVER 37 /* Provisioning Version (u32) */
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#define IAX_IE_CALLINGPRES 38 /* Calling presentation (u8) */
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#define IAX_IE_CALLINGTON 39 /* Calling type of number (u8) */
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#define IAX_IE_CALLINGTNS 40 /* Calling transit network select (u16) */
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#define IAX_IE_SAMPLINGRATE 41 /* Supported sampling rates (u16) */
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#define IAX_IE_CAUSECODE 42 /* Hangup cause (u8) */
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#define IAX_IE_ENCRYPTION 43 /* Encryption format (u16) */
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#define IAX_IE_ENCKEY 44 /* Encryption key (raw) */
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#define IAX_IE_CODEC_PREFS 45 /* Codec Negotiation */
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#define IAX_IE_RR_JITTER 46 /* Received jitter (as in RFC1889) u32 */
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#define IAX_IE_RR_LOSS 47 /* Received loss (high byte loss pct, low 24 bits loss count, as in rfc1889 */
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#define IAX_IE_RR_PKTS 48 /* Received frames (total frames received) u32 */
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#define IAX_IE_RR_DELAY 49 /* Max playout delay for received frames (in ms) u16 */
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#define IAX_IE_RR_DROPPED 50 /* Dropped frames (presumably by jitterbuf) u32 */
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#define IAX_IE_RR_OOO 51 /* Frames received Out of Order u32 */
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#define IAX_AUTH_PLAINTEXT (1 << 0)
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#define IAX_AUTH_MD5 (1 << 1)
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#define IAX_AUTH_RSA (1 << 2)
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#define IAX_META_TRUNK 1 /* Trunk meta-message */
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#define IAX_META_VIDEO 2 /* Video frame */
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#define IAX_RATE_8KHZ (1 << 0) /* 8khz sampling (default if absent) */
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#define IAX_RATE_11KHZ (1 << 1) /* 11.025khz sampling */
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#define IAX_RATE_16KHZ (1 << 2) /* 16khz sampling */
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#define IAX_RATE_22KHZ (1 << 3) /* 22.05khz sampling */
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#define IAX_RATE_44KHZ (1 << 4) /* 44.1khz sampling */
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#define IAX_RATE_48KHZ (1 << 5) /* 48khz sampling */
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#define IAX_RATE_32KHZ (1 << 6) /* 32khz sampling */
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#define IAX_DPSTATUS_EXISTS (1 << 0)
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#define IAX_DPSTATUS_CANEXIST (1 << 1)
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#define IAX_DPSTATUS_NONEXISTANT (1 << 2)
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#define IAX_DPSTATUS_IGNOREPAT (1 << 14)
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#define IAX_DPSTATUS_MATCHMORE (1 << 15)
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#if defined __GNUC__
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#define __PACKED __attribute__ ((__packed__))
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#else
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#if defined (_MSC_VER)
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#pragma pack(push,1)
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#define __PACKED
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#else
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#pragma pack(1)
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#define __PACKED
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#endif
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#endif
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/* Full frames are always delivered reliably */
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struct ast_iax2_full_hdr {
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unsigned short scallno; /* Source call number -- high bit must be 1 */
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unsigned short dcallno; /* Destination call number -- high bit is 1 if retransmission */
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unsigned int ts; /* 32-bit timestamp in milliseconds (from 1st transmission) */
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unsigned char oseqno; /* Packet number (outgoing) */
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unsigned char iseqno; /* Packet number (next incoming expected) */
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char type; /* Frame type */
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unsigned char csub; /* Compressed subclass */
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unsigned char iedata[];
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} __PACKED;
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/* Mini header is used only for voice frames -- delivered unreliably */
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struct ast_iax2_mini_hdr {
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unsigned short callno; /* Source call number -- high bit must be 0, rest must be non-zero */
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unsigned short ts; /* 16-bit Timestamp (high 16 bits from last ast_iax2_full_hdr) */
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/* Frametype implicitly VOICE_FRAME */
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/* subclass implicit from last ast_iax2_full_hdr */
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unsigned char data[];
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} __PACKED;
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struct ast_iax2_meta_hdr {
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unsigned short zeros; /* Zeros field -- must be zero */
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unsigned char metacmd; /* Meta command */
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unsigned char cmddata; /* Command Data */
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unsigned char data[];
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} __PACKED;
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struct ast_iax2_video_hdr {
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unsigned short zeros; /* Zeros field -- must be zero */
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unsigned short callno; /* Video call number */
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unsigned short ts; /* Timestamp and mark if present */
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unsigned char data[];
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} __PACKED;
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struct ast_iax2_meta_trunk_hdr {
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unsigned int ts; /* 32-bit timestamp for all messages */
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unsigned char data[];
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} __PACKED;
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struct ast_iax2_meta_trunk_entry {
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unsigned short callno; /* Call number */
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unsigned short len; /* Length of data for this callno */
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} __PACKED;
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#define IAX_FIRMWARE_MAGIC 0x69617879
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struct ast_iax2_firmware_header {
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unsigned int magic; /* Magic number */
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unsigned short version; /* Software version */
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unsigned char devname[16]; /* Device */
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unsigned int datalen; /* Data length of file beyond header */
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unsigned char chksum[16]; /* Checksum of all data */
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unsigned char data[];
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} __PACKED;
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#ifdef _MSC_VER
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#pragma pack(pop)
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#else
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#ifndef __GNUC__
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#pragma pack()
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#endif
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#endif
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#undef __PACKED
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#endif
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