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libpri/libpri.h
Sean Bright 562e1fb7ca Add support for sending Reverse Charging Indication IE on ISDN PRI. 
Add the ability to transmit a Reverse Charging Indication IE during a SETUP
message.  In passing, re-work some of the receive logic to be forwards
compatible with new RCI values that may be added in the future.  Also removed
the PRI_REVERSECHARGE_SUPPORT define that I added on the last commit since we
can just check for PRI_REVERSECHARGE_NONE or _REQUESTED on the Asterisk side to
determine support for this.

Special thanks to rmudgett who could have written this in half the time he spent
reviewing it, but instead talked me through it.  Much appreciated!

(issue #13760)
Reported by: mrgabu

Review: https://reviewboard.asterisk.org/r/292/


git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@907 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2009-06-25 18:53:38 +00:00

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/*
* libpri: An implementation of Primary Rate ISDN
*
* Written by Mark Spencer <markster@digium.com>
*
* Copyright (C) 2001, Digium, Inc.
* All Rights Reserved.
*/
/*
* 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 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*
* In addition, when this program is distributed with Asterisk in
* any form that would qualify as a 'combined work' or as a
* 'derivative work' (but not mere aggregation), you can redistribute
* and/or modify the combination under the terms of the license
* provided with that copy of Asterisk, instead of the license
* terms granted here.
*/
/*
* NOTE:
* All new global identifiers that are added to this file MUST be
* prefixed with PRI_ or pri_ to indicate that they are part of this
* library and to reduce potential naming conflicts.
*/
#ifndef _LIBPRI_H
#define _LIBPRI_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_APDU (1 << 8) /* Debug of APDU components such as ROSE */
#define PRI_DEBUG_AOC (1 << 9) /* Debug of Advice of Charge ROSE Messages */
#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) */
#define PRI_SWITCH_NI1 7 /* National ISDN 1 */
#define PRI_SWITCH_GR303_EOC 8 /* GR-303 Embedded Operations Channel */
#define PRI_SWITCH_GR303_TMC 9 /* GR-303 Timeslot Management Channel */
#define PRI_SWITCH_QSIG 10 /* QSIG Switch */
/* Switchtypes 11 - 20 are reserved for internal use */
/* 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 (SETUP) */
#define PRI_EVENT_HANGUP 6 /* Call got hung up (RELEASE/RELEASE_COMPLETE/other) */
#define PRI_EVENT_RINGING 7 /* Call is ringing (ALERTING) */
#define PRI_EVENT_ANSWER 8 /* Call has been answered (CONNECT) */
#define PRI_EVENT_HANGUP_ACK 9 /* Call hangup has been acknowledged */
#define PRI_EVENT_RESTART_ACK 10 /* Restart complete on a given channel (RESTART_ACKNOWLEDGE) */
#define PRI_EVENT_FACNAME 11 /* Caller*ID Name received on Facility */
#define PRI_EVENT_INFO_RECEIVED 12 /* Additional info (digits) received (INFORMATION) */
#define PRI_EVENT_PROCEEDING 13 /* When we get CALL_PROCEEDING */
#define PRI_EVENT_SETUP_ACK 14 /* When we get SETUP_ACKNOWLEDGE */
#define PRI_EVENT_HANGUP_REQ 15 /* Requesting the higher layer to hangup (DISCONNECT) */
#define PRI_EVENT_NOTIFY 16 /* Notification received (NOTIFY) */
#define PRI_EVENT_PROGRESS 17 /* When we get PROGRESS */
#define PRI_EVENT_KEYPAD_DIGIT 18 /* When we receive during ACTIVE state (INFORMATION) */
#define PRI_EVENT_SERVICE 19 /* SERVICE maintenance message */
#define PRI_EVENT_SERVICE_ACK 20 /* SERVICE maintenance acknowledgement message */
/* Simple states */
#define PRI_STATE_DOWN 0
#define PRI_STATE_UP 1
#define PRI_PROGRESS_MASK
/* Progress indicator values */
#define PRI_PROG_CALL_NOT_E2E_ISDN (1 << 0)
#define PRI_PROG_CALLED_NOT_ISDN (1 << 1)
#define PRI_PROG_CALLER_NOT_ISDN (1 << 2)
#define PRI_PROG_INBAND_AVAILABLE (1 << 3)
#define PRI_PROG_DELAY_AT_INTERF (1 << 4)
#define PRI_PROG_INTERWORKING_WITH_PUBLIC (1 << 5)
#define PRI_PROG_INTERWORKING_NO_RELEASE (1 << 6)
#define PRI_PROG_INTERWORKING_NO_RELEASE_PRE_ANSWER (1 << 7)
#define PRI_PROG_INTERWORKING_NO_RELEASE_POST_ANSWER (1 << 8)
#define PRI_PROG_CALLER_RETURNED_TO_ISDN (1 << 9)
/* Numbering plan identifier */
#define PRI_NPI_UNKNOWN 0x0 /*!< Unknown numbering plan */
#define PRI_NPI_E163_E164 0x1 /*!< ISDN/telephony numbering plan (public) */
#define PRI_NPI_X121 0x3 /*!< Data numbering plan */
#define PRI_NPI_F69 0x4 /*!< Telex numbering plan */
#define PRI_NPI_NATIONAL 0x8 /*!< National standard numbering plan */
#define PRI_NPI_PRIVATE 0x9 /*!< Private numbering plan */
#define PRI_NPI_RESERVED 0xF /*!< Reserved for extension */
/* Type of number */
#define PRI_TON_UNKNOWN 0x0
#define PRI_TON_INTERNATIONAL 0x1
#define PRI_TON_NATIONAL 0x2
#define PRI_TON_NET_SPECIFIC 0x3
#define PRI_TON_SUBSCRIBER 0x4
#define PRI_TON_ABBREVIATED 0x6
#define PRI_TON_RESERVED 0x7
/* Redirection reasons */
#define PRI_REDIR_UNKNOWN 0x0
#define PRI_REDIR_FORWARD_ON_BUSY 0x1
#define PRI_REDIR_FORWARD_ON_NO_REPLY 0x2
#define PRI_REDIR_DEFLECTION 0x3
#define PRI_REDIR_DTE_OUT_OF_ORDER 0x9
#define PRI_REDIR_FORWARDED_BY_DTE 0xA
#define PRI_REDIR_UNCONDITIONAL 0xF
/* 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 PRI_PRES_NUMBER_TYPE 0x03
#define PRI_PRES_USER_NUMBER_UNSCREENED 0x00
#define PRI_PRES_USER_NUMBER_PASSED_SCREEN 0x01
#define PRI_PRES_USER_NUMBER_FAILED_SCREEN 0x02
#define PRI_PRES_NETWORK_NUMBER 0x03
#define PRI_PRES_RESTRICTION 0x60
#define PRI_PRES_ALLOWED 0x00
#define PRI_PRES_RESTRICTED 0x20
#define PRI_PRES_UNAVAILABLE 0x40
#define PRI_PRES_RESERVED 0x60
#define PRES_ALLOWED_USER_NUMBER_NOT_SCREENED \
(PRI_PRES_ALLOWED | PRI_PRES_USER_NUMBER_UNSCREENED)
#define PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN \
(PRI_PRES_ALLOWED | PRI_PRES_USER_NUMBER_PASSED_SCREEN)
#define PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN \
(PRI_PRES_ALLOWED | PRI_PRES_USER_NUMBER_FAILED_SCREEN)
#define PRES_ALLOWED_NETWORK_NUMBER \
(PRI_PRES_ALLOWED | PRI_PRES_NETWORK_NUMBER)
#define PRES_PROHIB_USER_NUMBER_NOT_SCREENED \
(PRI_PRES_RESTRICTED | PRI_PRES_USER_NUMBER_UNSCREENED)
#define PRES_PROHIB_USER_NUMBER_PASSED_SCREEN \
(PRI_PRES_RESTRICTED | PRI_PRES_USER_NUMBER_PASSED_SCREEN)
#define PRES_PROHIB_USER_NUMBER_FAILED_SCREEN \
(PRI_PRES_RESTRICTED | PRI_PRES_USER_NUMBER_FAILED_SCREEN)
#define PRES_PROHIB_NETWORK_NUMBER \
(PRI_PRES_RESTRICTED | PRI_PRES_NETWORK_NUMBER)
#define PRES_NUMBER_NOT_AVAILABLE \
(PRI_PRES_UNAVAILABLE | PRI_PRES_NETWORK_NUMBER)
/* Reverse Charging Indication */
#define PRI_REVERSECHARGE_NONE -1
#define PRI_REVERSECHARGE_REQUESTED 1
/* Causes for disconnection */
#define PRI_CAUSE_UNALLOCATED 1
#define PRI_CAUSE_NO_ROUTE_TRANSIT_NET 2 /* !Q.SIG */
#define PRI_CAUSE_NO_ROUTE_DESTINATION 3
#define PRI_CAUSE_CHANNEL_UNACCEPTABLE 6
#define PRI_CAUSE_CALL_AWARDED_DELIVERED 7 /* !Q.SIG */
#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 /* !Q.SIG */
#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 /* !Q.SIG */
#define PRI_CAUSE_NORMAL_TEMPORARY_FAILURE 41
#define PRI_CAUSE_SWITCH_CONGESTION 42 /* !Q.SIG */
#define PRI_CAUSE_ACCESS_INFO_DISCARDED 43 /* !Q.SIG */
#define PRI_CAUSE_REQUESTED_CHAN_UNAVAIL 44
#define PRI_CAUSE_PRE_EMPTED 45 /* !Q.SIG */
#define PRI_CAUSE_FACILITY_NOT_SUBSCRIBED 50 /* !Q.SIG */
#define PRI_CAUSE_OUTGOING_CALL_BARRED 52 /* !Q.SIG */
#define PRI_CAUSE_INCOMING_CALL_BARRED 54 /* !Q.SIG */
#define PRI_CAUSE_BEARERCAPABILITY_NOTAUTH 57
#define PRI_CAUSE_BEARERCAPABILITY_NOTAVAIL 58
#define PRI_CAUSE_SERVICEOROPTION_NOTAVAIL 63 /* Q.SIG */
#define PRI_CAUSE_BEARERCAPABILITY_NOTIMPL 65
#define PRI_CAUSE_CHAN_NOT_IMPLEMENTED 66 /* !Q.SIG */
#define PRI_CAUSE_FACILITY_NOT_IMPLEMENTED 69 /* !Q.SIG */
#define PRI_CAUSE_INVALID_CALL_REFERENCE 81
#define PRI_CAUSE_IDENTIFIED_CHANNEL_NOTEXIST 82 /* Q.SIG */
#define PRI_CAUSE_INCOMPATIBLE_DESTINATION 88
#define PRI_CAUSE_INVALID_MSG_UNSPECIFIED 95 /* !Q.SIG */
#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 /* !Q.SIG */
#define PRI_CAUSE_PROTOCOL_ERROR 111
#define PRI_CAUSE_INTERWORKING 127 /* !Q.SIG */
/* 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 /* Depriciated ITU Q.931 (05/1998)*/
#define PRI_TRANS_CAP_DIGITAL_W_TONES 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_H223_H245 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
/* Intermediate rates for V.110 */
#define PRI_INT_RATE_8K 1
#define PRI_INT_RATE_16K 2
#define PRI_INT_RATE_32K 3
/* Rate adaption for bottom 5 bits of rateadaption */
#define PRI_RATE_USER_RATE_MASK 0x1F
#define PRI_RATE_ADAPT_UNSPEC 0x00
#define PRI_RATE_ADAPT_0K6 0x01
#define PRI_RATE_ADAPT_1K2 0x02
#define PRI_RATE_ADAPT_2K4 0x03
#define PRI_RATE_ADAPT_3K6 0x04
#define PRI_RATE_ADAPT_4K8 0x05
#define PRI_RATE_ADAPT_7K2 0x06
#define PRI_RATE_ADAPT_8K 0x07
#define PRI_RATE_ADAPT_9K6 0x08
#define PRI_RATE_ADAPT_14K4 0x09
#define PRI_RATE_ADAPT_16K 0x0A
#define PRI_RATE_ADAPT_19K2 0x0B
#define PRI_RATE_ADAPT_32K 0x0C
#define PRI_RATE_ADAPT_38K4 0x0D
#define PRI_RATE_ADAPT_48K 0x0E
#define PRI_RATE_ADAPT_56K 0x0F
#define PRI_RATE_ADAPT_57K6 0x12
#define PRI_RATE_ADAPT_28K8 0x13
#define PRI_RATE_ADAPT_24K 0x14
#define PRI_RATE_ADAPT_0K1345 0x15
#define PRI_RATE_ADAPT_0K1 0x16
#define PRI_RATE_ADAPT_0K075_1K2 0x17
#define PRI_RATE_ADAPT_1K2_0K075 0x18
#define PRI_RATE_ADAPT_0K05 0x19
#define PRI_RATE_ADAPT_0K075 0x1A
#define PRI_RATE_ADAPT_0K110 0x1B
#define PRI_RATE_ADAPT_0K150 0x1C
#define PRI_RATE_ADAPT_0K200 0x1D
#define PRI_RATE_ADAPT_0K300 0x1E
#define PRI_RATE_ADAPT_12K 0x1F
/* in-band negotiation flag for rateadaption bit 5 */
#define PRI_RATE_ADAPT_NEGOTIATION_POSS 0x20
/* async flag for rateadaption bit 6 */
#define PRI_RATE_ADAPT_ASYNC 0x40
/* Notifications */
#define PRI_NOTIFY_USER_SUSPENDED 0x00 /* User suspended */
#define PRI_NOTIFY_USER_RESUMED 0x01 /* User resumed */
#define PRI_NOTIFY_BEARER_CHANGE 0x02 /* Bearer service change (DSS1) */
#define PRI_NOTIFY_ASN1_COMPONENT 0x03 /* ASN.1 encoded component (DSS1) */
#define PRI_NOTIFY_COMPLETION_DELAY 0x04 /* Call completion delay */
#define PRI_NOTIFY_CONF_ESTABLISHED 0x42 /* Conference established */
#define PRI_NOTIFY_CONF_DISCONNECTED 0x43 /* Conference disconnected */
#define PRI_NOTIFY_CONF_PARTY_ADDED 0x44 /* Other party added */
#define PRI_NOTIFY_CONF_ISOLATED 0x45 /* Isolated */
#define PRI_NOTIFY_CONF_REATTACHED 0x46 /* Reattached */
#define PRI_NOTIFY_CONF_OTHER_ISOLATED 0x47 /* Other party isolated */
#define PRI_NOTIFY_CONF_OTHER_REATTACHED 0x48 /* Other party reattached */
#define PRI_NOTIFY_CONF_OTHER_SPLIT 0x49 /* Other party split */
#define PRI_NOTIFY_CONF_OTHER_DISCONNECTED 0x4a /* Other party disconnected */
#define PRI_NOTIFY_CONF_FLOATING 0x4b /* Conference floating */
#define PRI_NOTIFY_WAITING_CALL 0x60 /* Call is waiting call */
#define PRI_NOTIFY_DIVERSION_ACTIVATED 0x68 /* Diversion activated (DSS1) */
#define PRI_NOTIFY_TRANSFER_ALERTING 0x69 /* Call transfer, alerting */
#define PRI_NOTIFY_TRANSFER_ACTIVE 0x6a /* Call transfer, active */
#define PRI_NOTIFY_REMOTE_HOLD 0x79 /* Remote hold */
#define PRI_NOTIFY_REMOTE_RETRIEVAL 0x7a /* Remote retrieval */
#define PRI_NOTIFY_CALL_DIVERTING 0x7b /* Call is diverting */
#define PRI_COPY_DIGITS_CALLED_NUMBER
/* Network Specific Facilities (AT&T) */
#define PRI_NSF_NONE -1
#define PRI_NSF_SID_PREFERRED 0xB1
#define PRI_NSF_ANI_PREFERRED 0xB2
#define PRI_NSF_SID_ONLY 0xB3
#define PRI_NSF_ANI_ONLY 0xB4
#define PRI_NSF_CALL_ASSOC_TSC 0xB9
#define PRI_NSF_NOTIF_CATSC_CLEARING 0xBA
#define PRI_NSF_OPERATOR 0xB5
#define PRI_NSF_PCCO 0xB6
#define PRI_NSF_SDN 0xE1
#define PRI_NSF_TOLL_FREE_MEGACOM 0xE2
#define PRI_NSF_MEGACOM 0xE3
#define PRI_NSF_ACCUNET 0xE6
#define PRI_NSF_LONG_DISTANCE_SERVICE 0xE7
#define PRI_NSF_INTERNATIONAL_TOLL_FREE 0xE8
#define PRI_NSF_ATT_MULTIQUEST 0xF0
#define PRI_NSF_CALL_REDIRECTION_SERVICE 0xF7
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;
int progress;
int progressmask;
q931_call *call;
char useruserinfo[260]; /* User->User info */
} pri_event_ringing;
typedef struct pri_event_answer {
int e;
int channel;
int cref;
int progress;
int progressmask;
q931_call *call;
char useruserinfo[260]; /* User->User info */
} pri_event_answer;
typedef struct pri_event_facname {
int e;
char callingname[256];
char callingnum[256];
int channel;
int cref;
q931_call *call;
int callingpres; /* Presentation of Calling CallerID */
int callingplan; /* Dialing plan of Calling entity */
} pri_event_facname;
#define PRI_CALLINGPLANANI
#define PRI_CALLINGPLANRDNIS
typedef struct pri_event_ring {
int e;
int channel; /* Channel requested */
int callingpres; /* Presentation of Calling CallerID */
int callingplanani; /* Dialing plan of Calling entity ANI */
int callingplan; /* Dialing plan of Calling entity */
char callingani[256]; /* Calling ANI */
char callingnum[256]; /* Calling number */
char callingname[256]; /* Calling name (if provided) */
int calledplan; /* Dialing plan of Called number */
int ani2; /* ANI II */
char callednum[256]; /* Called number */
char redirectingnum[256]; /* Redirecting number */
char redirectingname[256]; /* Redirecting name */
int redirectingreason; /* Reason for redirect */
int callingplanrdnis; /* Dialing plan of Redirecting Number */
char useruserinfo[260]; /* User->User info */
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 */
int complete; /* Have we seen "Complete" i.e. no more number? */
q931_call *call; /* Opaque call pointer */
char callingsubaddr[256]; /* Calling parties subaddress */
int progress;
int progressmask;
char origcalledname[256];
char origcallednum[256];
int callingplanorigcalled; /* Dialing plan of Originally Called Number */
int origredirectingreason;
int reversecharge;
} pri_event_ring;
typedef struct pri_event_hangup {
int e;
int channel; /* Channel requested */
int cause;
int cref;
q931_call *call; /* Opaque call pointer */
long aoc_units; /* Advise of Charge number of charged units */
char useruserinfo[260]; /* User->User info */
} pri_event_hangup;
typedef struct pri_event_restart_ack {
int e;
int channel;
} pri_event_restart_ack;
#define PRI_PROGRESS_CAUSE
typedef struct pri_event_proceeding {
int e;
int channel;
int cref;
int progress;
int progressmask;
int cause;
q931_call *call;
} pri_event_proceeding;
typedef struct pri_event_setup_ack {
int e;
int channel;
q931_call *call;
} pri_event_setup_ack;
typedef struct pri_event_notify {
int e;
int channel;
int info;
} pri_event_notify;
typedef struct pri_event_keypad_digit {
int e;
int channel;
q931_call *call;
char digits[64];
} pri_event_keypad_digit;
typedef struct pri_event_service {
int e;
int channel;
int changestatus;
} pri_event_service;
typedef struct pri_event_service_ack {
int e;
int channel;
int changestatus;
} pri_event_service_ack;
typedef union {
int e;
pri_event_generic gen; /* Generic view */
pri_event_restart restart; /* Restart view */
pri_event_error err; /* Error view */
pri_event_facname facname; /* Caller*ID Name on Facility */
pri_event_ring ring; /* Ring */
pri_event_hangup hangup; /* Hang up */
pri_event_ringing ringing; /* Ringing */
pri_event_answer answer; /* Answer */
pri_event_restart_ack restartack; /* Restart Acknowledge */
pri_event_proceeding proceeding; /* Call proceeding & Progress */
pri_event_setup_ack setup_ack; /* SETUP_ACKNOWLEDGE structure */
pri_event_notify notify; /* Notification */
pri_event_keypad_digit digit; /* Digits that come during a call */
pri_event_service service; /* service message */
pri_event_service_ack service_ack; /* service acknowledgement message */
} pri_event;
struct pri;
struct pri_sr;
#define PRI_IO_FUNCS
/* Type declaration for callbacks to read or write a HDLC frame as below */
typedef int (*pri_io_cb)(struct pri *pri, void *buf, int buflen);
/* 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_* */
struct pri *pri_new(int fd, int nodetype, int switchtype);
struct pri *pri_new_bri(int fd, int ptpmode, int nodetype, int switchtype);
/* Create D-channel just as above with user defined I/O callbacks and data */
struct pri *pri_new_cb(int fd, int nodetype, int switchtype, pri_io_cb io_read, pri_io_cb io_write, void *userdata);
/* Retrieve the user data associated with the D channel */
void *pri_get_userdata(struct pri *pri);
/* Set the user data associated with the D channel */
void pri_set_userdata(struct pri *pri, void *userdata);
/* Set Network Specific Facility for PRI */
void pri_set_nsf(struct pri *pri, int nsf);
/* Set debug parameters on PRI -- see above debug definitions */
void pri_set_debug(struct pri *pri, int debug);
/* Get debug parameters on PRI -- see above debug definitions */
int pri_get_debug(struct pri *pri);
#define PRI_FACILITY_ENABLE
/* Enable transmission support of Facility IEs on the pri */
void pri_facility_enable(struct pri *pri);
/* 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 */
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 */
char *pri_event2str(int id);
/* Give a name to a node type */
char *pri_node2str(int id);
/* Give a name to a switch type */
char *pri_switch2str(int id);
/* Print an event */
void pri_dump_event(struct pri *pri, pri_event *e);
/* Turn presentation into a string */
char *pri_pres2str(int pres);
/* Turn numbering plan into a string */
char *pri_plan2str(int plan);
/* Turn cause into a string */
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 */
int pri_acknowledge(struct pri *pri, q931_call *call, int channel, int info);
/* Send a digit in overlap mode */
int pri_information(struct pri *pri, q931_call *call, char digit);
#define PRI_KEYPAD_FACILITY_TX
/* Send a keypad facility string of digits */
int pri_keypad_facility(struct pri *pri, q931_call *call, const char *digits);
/* Answer the incomplete(call without called number) call on the given channel.
Set non-isdn to non-zero if you are not connecting to ISDN equipment */
int pri_need_more_info(struct pri *pri, q931_call *call, int channel, int nonisdn);
/* 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 */
int pri_answer(struct pri *pri, q931_call *call, int channel, int nonisdn);
/* Set CRV reference for GR-303 calls */
#undef pri_release
#undef pri_disconnect
/* backwards compatibility for those who don't use asterisk with libpri */
#define pri_release(a,b,c) \
pri_hangup(a,b,c)
#define pri_disconnect(a,b,c) \
pri_hangup(a,b,c)
/* Hangup a call */
#define PRI_HANGUP
int pri_hangup(struct pri *pri, q931_call *call, int cause);
#define PRI_DESTROYCALL
void pri_destroycall(struct pri *pri, q931_call *call);
#define PRI_RESTART
int pri_restart(struct pri *pri);
int pri_reset(struct pri *pri, int channel);
/* handle b-channel maintenance messages */
extern int pri_maintenance_service(struct pri *pri, int span, int channel, int changestatus);
/* Create a new call */
q931_call *pri_new_call(struct pri *pri);
/* Retrieve CRV reference for GR-303 calls. Returns >0 on success. */
int pri_get_crv(struct pri *pri, q931_call *call, int *callmode);
/* Retrieve CRV reference for GR-303 calls. CRV must be >0, call mode should be 0 */
int pri_set_crv(struct pri *pri, q931_call *call, int crv, int callmode);
/* How long until you need to poll for a new event */
struct timeval *pri_schedule_next(struct pri *pri);
/* Run any pending schedule events */
extern pri_event *pri_schedule_run(struct pri *pri);
extern pri_event *pri_schedule_run_tv(struct pri *pri, const struct timeval *now);
int pri_call(struct pri *pri, q931_call *c, int transmode, int channel,
int exclusive, int nonisdn, char *caller, int callerplan, char *callername, int callerpres,
char *called,int calledplan, int ulayer1);
struct pri_sr *pri_sr_new(void);
void pri_sr_free(struct pri_sr *sr);
int pri_sr_set_channel(struct pri_sr *sr, int channel, int exclusive, int nonisdn);
int pri_sr_set_bearer(struct pri_sr *sr, int transmode, int userl1);
int pri_sr_set_called(struct pri_sr *sr, char *called, int calledplan, int complete);
int pri_sr_set_caller(struct pri_sr *sr, char *caller, char *callername, int callerplan, int callerpres);
int pri_sr_set_redirecting(struct pri_sr *sr, char *num, int plan, int pres, int reason);
#define PRI_USER_USER_TX
/* Set the user user field. Warning! don't send binary data accross this field */
void pri_sr_set_useruser(struct pri_sr *sr, const char *userchars);
void pri_sr_set_reversecharge(struct pri_sr *sr, int requested);
void pri_call_set_useruser(q931_call *sr, const char *userchars);
int pri_setup(struct pri *pri, q931_call *call, struct pri_sr *req);
/* Set a call has a call indpendent signalling connection (i.e. no bchan) */
int pri_sr_set_connection_call_independent(struct pri_sr *req);
/* Send an MWI indication to a remote location. If activate is non zero, activates, if zero, deactivates */
int pri_mwi_activate(struct pri *pri, q931_call *c, char *caller, int callerplan, char *callername, int callerpres, char *called, int calledplan);
/* Send an MWI deactivate request to a remote location */
int pri_mwi_deactivate(struct pri *pri, q931_call *c, char *caller, int callerplan, char *callername, int callerpres, char *called, int calledplan);
/* Set service message support flag */
int pri_set_service_message_support(struct pri *pri, int supportflag);
#define PRI_2BCT
/* Attempt to pass the channels back to the NET side if compatable and
* suscribed. Sometimes called 2 bchannel transfer (2BCT) */
int pri_channel_bridge(q931_call *call1, q931_call *call2);
/* Override message and error stuff */
#define PRI_NEW_SET_API
void pri_set_message(void (*__pri_error)(struct pri *pri, char *));
void pri_set_error(void (*__pri_error)(struct pri *pri, char *));
/* Set overlap mode */
#define PRI_SET_OVERLAPDIAL
void pri_set_overlapdial(struct pri *pri,int state);
/* QSIG logical channel mapping option, do not skip channel 16 */
#define PRI_SET_CHAN_MAPPING_LOGICAL
void pri_set_chan_mapping_logical(struct pri *pri, int state);
#define PRI_DUMP_INFO_STR
char *pri_dump_info_str(struct pri *pri);
/* Get file descriptor */
int pri_fd(struct pri *pri);
#define PRI_PROGRESS
/* Send progress */
int pri_progress(struct pri *pri, q931_call *c, int channel, int info);
/* Send progress with cause IE */
int pri_progress_with_cause(struct pri *pri, q931_call *c, int channel, int info, int cause);
#define PRI_PROCEEDING_FULL
/* Send call proceeding */
int pri_proceeding(struct pri *pri, q931_call *c, int channel, int info);
/* Enable inband progress when a DISCONNECT is received */
void pri_set_inbanddisconnect(struct pri *pri, unsigned int enable);
/* Enslave a PRI to another, so they share the same call list
(and maybe some timers) */
void pri_enslave(struct pri *master, struct pri *slave);
#define PRI_GR303_SUPPORT
#define PRI_ENSLAVE_SUPPORT
#define PRI_SETUP_CALL
#define PRI_RECEIVE_SUBADDR
#define PRI_REDIRECTING_REASON
#define PRI_AOC_UNITS
#define PRI_ANI
/* Send notification */
int pri_notify(struct pri *pri, q931_call *c, int channel, int info);
int pri_callrerouting_facility(struct pri *pri, q931_call *call, const char *dest, const char* original, const char* reason);
/* Get/Set PRI Timers */
#define PRI_GETSET_TIMERS
int pri_set_timer(struct pri *pri, int timer, int value);
int pri_get_timer(struct pri *pri, int timer);
int pri_timer2idx(const char *timer_name);
/* New configurable timers and counters must be added to the end of the list */
enum PRI_TIMERS_AND_COUNTERS {
PRI_TIMER_N200, /* Maximum numer of Q.921 retransmissions */
PRI_TIMER_N201, /* Maximum numer of octets in an information field */
PRI_TIMER_N202, /* Maximum numer of transmissions of the TEI identity request message */
PRI_TIMER_K, /* Maximum number of outstanding I-frames */
PRI_TIMER_T200, /* Time between SABME's */
PRI_TIMER_T201, /* Minimum time between retransmissions of the TEI Identity check messages */
PRI_TIMER_T202, /* Minimum time between transmission of TEI Identity request messages */
PRI_TIMER_T203, /* Maximum time without exchanging packets */
PRI_TIMER_T300,
PRI_TIMER_T301, /* Maximum time to respond to an ALERT */
PRI_TIMER_T302,
PRI_TIMER_T303, /* Maximum time to wait after sending a SETUP without a response */
PRI_TIMER_T304,
PRI_TIMER_T305, /* Wait for DISCONNECT acknowledge */
PRI_TIMER_T306,
PRI_TIMER_T307,
PRI_TIMER_T308, /* Wait for RELEASE acknowledge */
PRI_TIMER_T309, /* Time active calls can tollerate data link layer being down before clearing. */
PRI_TIMER_T310, /* Maximum time between receiving a CALL_PROCEEDING and receiving a ALERT/CONNECT/DISCONNECT/PROGRESS */
PRI_TIMER_T313, /* Wait for CONNECT acknowledge, CPE side only */
PRI_TIMER_T314,
PRI_TIMER_T316, /* Maximum time between transmitting a RESTART and receiving a RESTART ACK */
PRI_TIMER_T317,
PRI_TIMER_T318,
PRI_TIMER_T319,
PRI_TIMER_T320,
PRI_TIMER_T321,
PRI_TIMER_T322,
PRI_TIMER_TM20, /* Maximum time awaiting XID response */
PRI_TIMER_NM20, /* Number of XID retransmits */
/* Must be last in the enum list */
_PRI_MAX_TIMERS,
PRI_MAX_TIMERS = (_PRI_MAX_TIMERS < 32) ? 32 : _PRI_MAX_TIMERS
};
/* Get PRI version */
const char *pri_get_version(void);
#endif
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