c752834a02
git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@7 2fbb986a-6c06-0410-b554-c9c1f0a7f128
236 lines
6.4 KiB
C
Executable File
236 lines
6.4 KiB
C
Executable File
/*
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* libpri: An implementation of Primary Rate ISDN
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*
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* Written by Mark Spencer <markster@linux-support.net>
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*
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* Copyright (C) 2001, Linux Support Services, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef _PRI_Q931_H
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#define _PRI_Q931_H
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typedef enum q931_state {
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/* User states */
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U0_NULL_STATE,
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U1_CALL_INITIATED,
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U2_OVERLAP_SENDING,
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U3_OUTGOING_CALL_PROCEEDING,
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U4_CALL_DELIVERED,
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U6_CALL_PRESENT,
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U7_CALL_RECEIVED,
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U8_CONNECT_REQUEST,
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U9_INCOMING_CALL_PROCEEDING,
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U10_ACTIVE,
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U11_DISCONNECT_REQUEST,
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U12_DISCONNECT_INDICATION,
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U15_SUSPEND_REQUEST,
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U17_RESUME_REQUEST,
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U19_RELEASE_REQUEST,
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U25_OVERLAP_RECEIVING,
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/* Network states */
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N0_NULL_STATE,
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N1_CALL_INITIATED,
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N2_OVERLAP_SENDING,
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N3_OUTGOING_CALL_PROCEEDING,
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N4_CALL_DELIVERED,
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N6_CALL_PRESENT,
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N7_CALL_RECEIVED,
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N8_CONNECT_REQUEST,
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N9_INCOMING_CALL_PROCEEDING,
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N10_ACTIVE,
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N11_DISCONNECT_REQUEST,
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N12_DISCONNECT_INDICATION,
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N15_SUSPEND_REQUEST,
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N17_RESUME_REQUEST,
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N19_RELEASE_REQUEST,
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N22_CALL_ABORT,
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N25_OVERLAP_RECEIVING
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} q931_state;
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typedef enum q931_mode {
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UNKNOWN_MODE,
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CIRCUIT_MODE,
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PACKET_MODE
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} q931_mode;
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typedef struct q931_h {
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unsigned char raw[0];
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u_int8_t pd; /* Protocol Discriminator */
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#if __BYTE_ORDER == __BIG_ENDIAN
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u_int8_t x0:4;
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u_int8_t crlen:4;
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#else
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u_int8_t crlen:4;
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u_int8_t x0:4;
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#endif
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u_int8_t contents[0];
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u_int8_t crv[3];
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} q931_h;
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/* Message type header */
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typedef struct q931_mh {
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#if __BYTE_ORDER == __BIG_ENDIAN
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u_int8_t f:1;
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u_int8_t msg:7;
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#else
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u_int8_t msg:7;
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u_int8_t f:1;
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#endif
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u_int8_t data[0];
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} q931_mh;
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/* Information element format */
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typedef struct q931_ie {
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#if __BYTE_ORDER == __BIG_ENDIAN
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u_int8_t f:1;
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u_int8_t ie:7;
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#else
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u_int8_t ie:7;
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u_int8_t f:1;
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#endif
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u_int8_t len;
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u_int8_t data[0];
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} q931_ie;
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#define Q931_RES_HAVEEVENT (1 << 0)
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#define Q931_RES_INERRROR (1 << 1)
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#define Q931_PROTOCOL_DISCRIMINATOR 0x08
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/* Q.931 / National ISDN Message Types */
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/* Call Establishment Messages */
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#define Q931_ALERTING 0x01
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#define Q931_CALL_PROCEEDING 0x02
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#define Q931_CONNECT 0x07
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#define Q931_CONNECT_ACKNOWLEDGE 0x0f
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#define Q931_PROGRESS 0x03
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#define Q931_SETUP 0x05
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#define Q931_SETUP_ACKNOWLEDGE 0x0d
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/* Call Disestablishment Messages */
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#define Q931_DISCONNECT 0x45
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#define Q931_RELEASE 0x4d
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#define Q931_RELEASE_COMPLETE 0x5a
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#define Q931_RESTART 0x46
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#define Q931_RESTART_ACKNOWLEDGE 0x4e
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/* Miscellaneous Messages */
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#define Q931_STATUS 0x7d
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#define Q931_STATUS_ENQUIRY 0x75
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#define Q931_USER_INFORMATION 0x20
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#define Q931_SEGMENT 0x60
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#define Q931_CONGESTION_CONTROL 0x79
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#define Q931_INFORMATION 0x7b
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#define Q931_FACILITY 0x62
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#define Q931_NOTIFY 0x6e
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/* Call Management Messages */
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#define Q931_HOLD 0x24
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#define Q931_HOLD_ACKNOWLEDGE 0x28
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#define Q931_HOLD_REJECT 0x30
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#define Q931_RETRIEVE 0x31
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#define Q931_RETRIEVE_ACKNOWLEDGE 0x33
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#define Q931_RETRIEVE_REJECT 0x37
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#define Q931_RESUME 0x26
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#define Q931_RESUME_ACKNOWLEDGE 0x2e
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#define Q931_RESUME_REJECT 0x22
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#define Q931_SUSPEND 0x25
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#define Q931_SUSPEND_ACKNOWLEDGE 0x2d
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#define Q931_SUSPEND_REJECT 0x21
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/* Maintenance messages (codeset 0 only) */
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#define NATIONAL_SERVICE 0x0f
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#define NATIONAL_SERVICE_ACKNOWLEDGE 0x07
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/* Special codeset 0 IE */
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#define NATIONAL_CHANGE_STATUS 0x1
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/* Q.931 / National ISDN Information Elements */
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#define Q931_LOCKING_SHIFT 0x90
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#define Q931_BEARER_CAPABILITY 0x04
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#define Q931_CAUSE 0x08
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#define Q931_CALL_STATE 0x14
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#define Q931_CHANNEL_IDENT 0x18
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#define Q931_PROGRESS_INDICATOR 0x1e
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#define Q931_NETWORK_SPEC_FAC 0x20
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#define Q931_INFORMATION_RATE 0x40
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#define Q931_TRANSIT_DELAY 0x42
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#define Q931_TRANS_DELAY_SELECT 0x43
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#define Q931_BINARY_PARAMETERS 0x44
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#define Q931_WINDOW_SIZE 0x45
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#define Q931_PACKET_SIZE 0x46
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#define Q931_CLOSED_USER_GROUP 0x47
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#define Q931_REVERSE_CHARGE_INDIC 0x4a
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#define Q931_CALLING_PARTY_NUMBER 0x6c
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#define Q931_CALLING_PARTY_SUBADDR 0x6d
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#define Q931_CALLED_PARTY_NUMBER 0x70
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#define Q931_CALLED_PARTY_SUBADDR 0x71
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#define Q931_REDIRECTING_NUMBER 0x74
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#define Q931_REDIRECTING_SUBADDR 0x75
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#define Q931_TRANSIT_NET_SELECT 0x78
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#define Q931_RESTART_INDICATOR 0x79
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#define Q931_LOW_LAYER_COMPAT 0x7c
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#define Q931_HIGH_LAYER_COMPAT 0x7d
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#define Q931_IE_SEGMENTED_MSG 0x00
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#define Q931_IE_CHANGE_STATUS 0x01
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#define Q931_IE_CONNECTED_NUM 0x0C
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#define Q931_IE_CALL_IDENTITY 0x10
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#define Q931_IE_FACILITY 0x1c
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#define Q931_IE_ENDPOINT_ID 0x26
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#define Q931_IE_NOTIFY_IND 0x27
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#define Q931_IE_DISPLAY 0x28
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#define Q931_IE_TIME_DATE 0x29
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#define Q931_IE_KEYPAD_FACILITY 0x2c
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#define Q931_IE_CALL_STATUS 0x2d
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#define Q931_IE_UPDATE 0x31
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#define Q931_IE_INFO_REQUEST 0x32
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#define Q931_IE_SIGNAL 0x34
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#define Q931_IE_SWITCHHOOK 0x36
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#define Q931_IE_FEATURE_ACTIVATE 0x38
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#define Q931_IE_FEATURE_IND 0x39
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#define Q931_IE_ORIGINAL_CALLED_NUMBER 0x73
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#define Q931_IE_REDIRECTION_NUMBER 0x76
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#define Q931_IE_REDIRECTION_SUBADDR 0x77
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#define Q931_IE_USER_USER_FACILITY 0x7A
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#define Q931_IE_USER_USER 0x7E
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#define Q931_IE_ESCAPE_FOR_EXT 0x7F
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extern int q931_receive(struct pri *pri, q931_h *h, int len);
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extern int q931_alerting(struct pri *pri, q931_call *call, int channel, int info);
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extern int q931_call_proceeding(struct pri *pri, q931_call *call);
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extern int q931_connect(struct pri *pri, q931_call *call, int channel, int nonisdn);
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extern int q931_release(struct pri *pri, q931_call *call, int cause);
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extern int q931_disconnect(struct pri *pri, q931_call *call, int cause);
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extern q931_call *q931_new_call(struct pri *pri);
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extern int q931_setup(struct pri *pri, q931_call *c, int transmode, int channel, int exclusive,
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int nonisdn, char *caller, int callerplan, int callerpres, char *called,
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int calledplan);
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#endif
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