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libpri/libpri.h
Mark Spencer 9ed9f37ada Version 0.2.0 from FTP 
git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@15 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2001-12-07 19:45:45 +00:00

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/*
* libpri: An implementation of Primary Rate ISDN
*
* Written by Mark Spencer <markster@linux-support.net>
*
* Copyright (C) 2001, Linux Support Services, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _PRI_H
#define _PRI_H
/* Node types */
#define PRI_NETWORK 1
#define PRI_CPE 2
/* Debugging */
#define PRI_DEBUG_Q921_RAW (1 << 0) /* Show raw HDLC frames */
#define PRI_DEBUG_Q921_DUMP (1 << 1) /* Show each interpreted Q.921 frame */
#define PRI_DEBUG_Q921_STATE (1 << 2) /* Debug state machine changes */
#define PRI_DEBUG_CONFIG (1 << 3) /* Display error events on stdout */
#define PRI_DEBUG_Q931_DUMP (1 << 5) /* Show interpreted Q.931 frames */
#define PRI_DEBUG_Q931_STATE (1 << 6) /* Debug Q.931 state machine changes */
#define PRI_DEBUG_Q931_ANOMALY (1 << 7) /* Show unexpected events */
#define PRI_DEBUG_ALL (0xffff) /* Everything */
/* Switch types */
#define PRI_SWITCH_UNKNOWN 0
#define PRI_SWITCH_NI2 1 /* National ISDN 2 */
#define PRI_SWITCH_DMS100 2 /* DMS 100 */
#define PRI_SWITCH_LUCENT5E 3 /* Lucent 5E */
#define PRI_SWITCH_ATT4ESS 4 /* AT&T 4ESS */
#define PRI_SWITCH_EUROISDN_E1 5 /* Standard EuroISDN (CTR4, ETSI 300-102) */
#define PRI_SWITCH_EUROISDN_T1 6 /* T1 EuroISDN variant (ETSI 300-102) */
/* PRI D-Channel Events */
#define PRI_EVENT_DCHAN_UP 1 /* D-channel is up */
#define PRI_EVENT_DCHAN_DOWN 2 /* D-channel is down */
#define PRI_EVENT_RESTART 3 /* B-channel is restarted */
#define PRI_EVENT_CONFIG_ERR 4 /* Configuration Error Detected */
#define PRI_EVENT_RING 5 /* Incoming call */
#define PRI_EVENT_HANGUP 6 /* Call got hung up */
#define PRI_EVENT_RINGING 7 /* Call is ringing (alerting) */
#define PRI_EVENT_ANSWER 8 /* Call has been answered */
#define PRI_EVENT_HANGUP_ACK 9 /* Call hangup has been acknowledged */
/* Simple states */
#define PRI_STATE_DOWN 0
#define PRI_STATE_UP 1
/* Dialing plan */
#define PRI_INTERNATIONAL_ISDN 0x11
#define PRI_NATIONAL_ISDN 0x21
#define PRI_LOCAL_ISDN 0x41
#define PRI_PRIVATE 0x49
#define PRI_UNKNOWN 0x0
/* Presentation */
#define PRES_ALLOWED_USER_NUMBER_NOT_SCREENED 0x00
#define PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN 0x01
#define PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN 0x02
#define PRES_ALLOWED_NETWORK_NUMBER 0x03
#define PRES_PROHIB_USER_NUMBER_NOT_SCREENED 0x20
#define PRES_PROHIB_USER_NUMBER_PASSED_SCREEN 0x21
#define PRES_PROHIB_USER_NUMBER_FAILED_SCREEN 0x22
#define PRES_PROHIB_NETWORK_NUMBER 0x23
#define PRES_NUMBER_NOT_AVAILABLE 0x43
/* Causes for disconnection */
#define PRI_CAUSE_UNALLOCATED 1
#define PRI_CAUSE_NO_ROUTE_TRANSIT_NET 2
#define PRI_CAUSE_NO_ROUTE_DESTINATION 3
#define PRI_CAUSE_CHANNEL_UNACCEPTABLE 6
#define PRI_CAUSE_CALL_AWARDED_DELIVERED 7
#define PRI_CAUSE_NORMAL_CLEARING 16
#define PRI_CAUSE_USER_BUSY 17
#define PRI_CAUSE_NO_USER_RESPONSE 18
#define PRI_CAUSE_NO_ANSWER 19
#define PRI_CAUSE_CALL_REJECTED 21
#define PRI_CAUSE_NUMBER_CHANGED 22
#define PRI_CAUSE_DESTINATION_OUT_OF_ORDER 27
#define PRI_CAUSE_INVALID_NUMBER_FORMAT 28
#define PRI_CAUSE_FACILITY_REJECTED 29
#define PRI_CAUSE_RESPONSE_TO_STATUS_ENQUIRY 30
#define PRI_CAUSE_NORMAL_UNSPECIFIED 31
#define PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION 34
#define PRI_CAUSE_NETWORK_OUT_OF_ORDER 38
#define PRI_CAUSE_NORMAL_TEMPORARY_FAILURE 41
#define PRI_CAUSE_SWITCH_CONGESTION 42
#define PRI_CAUSE_ACCESS_INFO_DISCARDED 43
#define PRI_CAUSE_REQUESTED_CHAN_UNAVAIL 44
#define PRI_CAUSE_PRE_EMPTED 45
#define PRI_CAUSE_FACILITY_NOT_SUBSCRIBED 50
#define PRI_CAUSE_OUTGOING_CALL_BARRED 52
#define PRI_CAUSE_INCOMING_CALL_BARRED 54
#define PRI_CAUSE_BEARERCAPABILITY_NOTAUTH 57
#define PRI_CAUSE_BEARERCAPABILITY_NOTAVAIL 58
#define PRI_CAUSE_BEARERCAPABILITY_NOTIMPL 65
#define PRI_CAUSE_CHAN_NOT_IMPLEMENTED 66
#define PRI_CAUSE_FACILITY_NOT_IMPLEMENTED 69
#define PRI_CAUSE_INVALID_CALL_REFERENCE 81
#define PRI_CAUSE_INCOMPATIBLE_DESTINATION 88
#define PRI_CAUSE_INVALID_MSG_UNSPECIFIED 95
#define PRI_CAUSE_MANDATORY_IE_MISSING 96
#define PRI_CAUSE_MESSAGE_TYPE_NONEXIST 97
#define PRI_CAUSE_WRONG_MESSAGE 98
#define PRI_CAUSE_IE_NONEXIST 99
#define PRI_CAUSE_INVALID_IE_CONTENTS 100
#define PRI_CAUSE_WRONG_CALL_STATE 101
#define PRI_CAUSE_RECOVERY_ON_TIMER_EXPIRE 102
#define PRI_CAUSE_MANDATORY_IE_LENGTH_ERROR 103
#define PRI_CAUSE_PROTOCOL_ERROR 111
#define PRI_CAUSE_INTERWORKING 127
/* Transmit capabilities */
#define PRI_TRANS_CAP_SPEECH 0x0
#define PRI_TRANS_CAP_DIGITAL 0x08
#define PRI_TRANS_CAP_RESTRICTED_DIGITAL 0x09
#define PRI_TRANS_CAP_3_1K_AUDIO 0x10
#define PRI_TRANS_CAP_7K_AUDIO 0x11
#define PRI_TRANS_CAP_VIDEO 0x18
#define PRI_LAYER_1_ITU_RATE_ADAPT 0x21
#define PRI_LAYER_1_ULAW 0x22
#define PRI_LAYER_1_ALAW 0x23
#define PRI_LAYER_1_G721 0x24
#define PRI_LAYER_1_G722_G725 0x25
#define PRI_LAYER_1_G7XX_384K 0x26
#define PRI_LAYER_1_NON_ITU_ADAPT 0x27
#define PRI_LAYER_1_V120_RATE_ADAPT 0x28
#define PRI_LAYER_1_X31_RATE_ADAPT 0x29
typedef struct q931_call q931_call;
typedef struct pri_event_generic {
/* Events with no additional information fall in this category */
int e;
} pri_event_generic;
typedef struct pri_event_error {
int e;
char err[256];
} pri_event_error;
typedef struct pri_event_restart {
int e;
int channel;
} pri_event_restart;
typedef struct pri_event_ringing {
int e;
int channel;
int cref;
q931_call *call;
} pri_event_ringing;
typedef struct pri_event_answer {
int e;
int channel;
int cref;
q931_call *call;
} pri_event_answer;
typedef struct pri_event_ring {
int e;
int channel; /* Channel requested */
int callingpres; /* Presentation of Calling CallerID */
int callingplan; /* Dialing plan of Calling entity */
char callingnum[256]; /* Calling number */
int calledplan; /* Dialing plan of Called number */
char callednum[256]; /* Called number */
int flexible; /* Are we flexible with our channel selection? */
int cref; /* Call Reference Number */
int ctype; /* Call type (see PRI_TRANS_CAP_* */
int layer1; /* User layer 1 */
q931_call *call; /* Opaque call pointer */
} pri_event_ring;
typedef struct pri_event_hangup {
int e;
int channel; /* Channel requested */
int cause;
int cref;
q931_call *call; /* Opaque call pointer */
} pri_event_hangup;
typedef union {
int e;
pri_event_generic gen; /* Generic view */
pri_event_restart restart; /* Restart view */
pri_event_error err; /* Error view */
pri_event_ring ring; /* Ring */
pri_event_hangup hangup; /* Hang up */
pri_event_ringing ringing; /* Ringing */
pri_event_ringing answer; /* Answer */
} pri_event;
struct pri;
/* Create a D-channel on a given file descriptor. The file descriptor must be a
channel operating in HDLC mode with FCS computed by the fd's driver. Also it
must be NON-BLOCKING! Frames received on the fd should include FCS. Nodetype
must be one of PRI_NETWORK or PRI_CPE. switchtype should be PRI_SWITCH_* */
extern struct pri *pri_new(int fd, int nodetype, int switchtype);
/* Set debug parameters on PRI -- see above debug definitions */
extern void pri_set_debug(struct pri *pri, int debug);
/* Run PRI on the given D-channel, taking care of any events that
need to be handled. If block is set, it will block until an event
occurs which needs to be handled */
extern pri_event *pri_dchannel_run(struct pri *pri, int block);
/* Check for an outstanding event on the PRI */
pri_event *pri_check_event(struct pri *pri);
/* Give a name to a given event ID */
extern char *pri_event2str(int id);
/* Give a name toa node type */
extern char *pri_node2str(int id);
/* Give a name to a switch type */
extern char *pri_switch2str(int id);
/* Print an event */
extern void pri_dump_event(struct pri *pri, pri_event *e);
/* Turn an event ID into a string */
extern char *pri_event2str(int e);
/* Turn presentation into a string */
extern char *pri_pres2str(int pres);
/* Turn numbering plan into a string */
extern char *pri_plan2str(int plan);
/* Turn cause into a string */
extern char *pri_cause2str(int cause);
/* Acknowledge a call and place it on the given channel. Set info to non-zero if there
is in-band data available on the channel */
extern int pri_acknowledge(struct pri *pri, q931_call *call, int channel, int info);
/* Answer the call on the given channel (ignored if you called acknowledge already).
Set non-isdn to non-zero if you are not connecting to ISDN equipment */
extern int pri_answer(struct pri *pri, q931_call *call, int channel, int nonisdn);
/* Release/Reject a call */
extern int pri_release(struct pri *pri, q931_call *call, int cause);
/* Hangup / Disconnect a call */
extern int pri_disconnect(struct pri *pri, q931_call *call, int cause);
/* Create a new call */
extern q931_call *pri_new_call(struct pri *pri);
/* How long until you need to poll for a new event */
extern struct timeval *pri_schedule_next(struct pri *pri);
/* Run any pending schedule events */
extern pri_event *pri_schedule_run(struct pri *pri);
extern int pri_call(struct pri *pri, q931_call *c, int transmode, int channel,
int exclusive, int nonisdn, char *caller, int callerplan, int callerpres,
char *called,int calledplan, int ulayer1);
#endif
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