mirror of https://github.com/asterisk/asterisk
This merge splits the PRI/BRI signaling logic out of chan_dahdi.c into sig_pri.c. Functionality in theory should not change (mostly). A few trivial changes were made in sig_analog with verbose messages and commenting. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@203304 65c4cc65-6c06-0410-ace0-fbb531ad65f3certified/1.8.6
Jeff Peeler
16 years ago
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#ifndef _SIG_PRI_H
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#define _SIG_PRI_H
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2009, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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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 Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Interface header for PRI signaling module
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*
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* \author Matthew Fredrickson <creslin@digium.com>
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*/
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#include "asterisk/channel.h"
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#include "asterisk/frame.h"
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#include <libpri.h>
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#include <dahdi/user.h>
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enum sig_pri_tone {
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SIG_PRI_TONE_RINGTONE = 0,
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SIG_PRI_TONE_STUTTER,
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SIG_PRI_TONE_CONGESTION,
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SIG_PRI_TONE_DIALTONE,
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SIG_PRI_TONE_DIALRECALL,
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SIG_PRI_TONE_INFO,
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SIG_PRI_TONE_BUSY,
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};
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enum sig_pri_law {
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SIG_PRI_DEFLAW = 0,
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SIG_PRI_ULAW,
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SIG_PRI_ALAW
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};
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struct sig_pri_pri;
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struct sig_pri_callback {
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/* Unlock the private in the signalling private structure. This is used for three way calling madness. */
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void (* const unlock_private)(void *pvt);
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/* Lock the private in the signalling private structure. ... */
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void (* const lock_private)(void *pvt);
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/* Function which is called back to handle any other DTMF up events that are received. Called by analog_handle_event. Why is this
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* important to use, instead of just directly using events received before they are passed into the library? Because sometimes,
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* (CWCID) the library absorbs DTMF events received. */
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//void (* const handle_dtmfup)(void *pvt, struct ast_channel *ast, enum analog_sub analog_index, struct ast_frame **dest);
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//int (* const dial_digits)(void *pvt, enum analog_sub sub, struct analog_dialoperation *dop);
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int (* const play_tone)(void *pvt, enum sig_pri_tone tone);
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int (* const set_echocanceller)(void *pvt, int enable);
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int (* const train_echocanceller)(void *pvt);
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struct ast_channel * (* const new_ast_channel)(void *pvt, int state, int startpbx, enum sig_pri_law law, int transfercapability, char *exten);
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void (* const fixup_chans)(void *old_chan, void *new_chan);
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/* Note: Called with PRI lock held */
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void (* const handle_dchan_exception)(struct sig_pri_pri *pri, int index);
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};
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#define NUM_DCHANS 4 /*!< No more than 4 d-channels */
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#define MAX_CHANNELS 672 /*!< No more than a DS3 per trunk group */
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#define SIG_PRI DAHDI_SIG_CLEAR
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#define SIG_BRI (0x2000000 | DAHDI_SIG_CLEAR)
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#define SIG_BRI_PTMP (0X4000000 | DAHDI_SIG_CLEAR)
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/* Overlap dialing option types */
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#define DAHDI_OVERLAPDIAL_NONE 0
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#define DAHDI_OVERLAPDIAL_OUTGOING 1
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#define DAHDI_OVERLAPDIAL_INCOMING 2
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#define DAHDI_OVERLAPDIAL_BOTH (DAHDI_OVERLAPDIAL_INCOMING|DAHDI_OVERLAPDIAL_OUTGOING)
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#ifdef HAVE_PRI_SERVICE_MESSAGES
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/*! \brief Persistent Service State */
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#define SRVST_DBKEY "service-state"
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/*! \brief The out-of-service SERVICE state */
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#define SRVST_TYPE_OOS "O"
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/*! \brief SRVST_INITIALIZED is used to indicate a channel being out-of-service
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* The SRVST_INITIALIZED is mostly used maintain backwards compatibility but also may
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* mean that the channel has not yet received a RESTART message. If a channel is
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* out-of-service with this reason a RESTART message will result in the channel
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* being put into service. */
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#define SRVST_INITIALIZED 0
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/*! \brief SRVST_NEAREND is used to indicate that the near end was put out-of-service */
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#define SRVST_NEAREND (1 << 0)
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/*! \brief SRVST_FAREND is used to indicate that the far end was taken out-of-service */
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#define SRVST_FAREND (1 << 1)
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/*! \brief SRVST_BOTH is used to indicate that both sides of the channel are out-of-service */
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#define SRVST_BOTH (SRVST_NEAREND | SRVST_FAREND)
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/*! \brief The AstDB family */
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static const char dahdi_db[] = "dahdi/registry";
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#endif
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struct sig_pri_chan {
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/* Options to be set by user */
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unsigned int hidecallerid:1;
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unsigned int hidecalleridname:1; /*!< Hide just the name not the number for legacy PBX use */
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unsigned int immediate:1; /*!< Answer before getting digits? */
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unsigned int inalarm:1;
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unsigned int priexclusive:1; /*!< Whether or not to override and use exculsive mode for channel selection */
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unsigned int priindication_oob:1;
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unsigned int use_callerid:1; /*!< Whether or not to use caller id on this channel */
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unsigned int use_callingpres:1; /*!< Whether to use the callingpres the calling switch sends */
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char context[AST_MAX_CONTEXT];
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int channel; /*!< Channel Number or CRV */
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char mohinterpret[MAX_MUSICCLASS];
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int stripmsd;
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/* Options to be checked by user */
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int cid_ani2; /*!< Automatic Number Identification number (Alternate PRI caller ID number) */
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char cid_num[AST_MAX_EXTENSION];
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int cid_ton; /*!< Type Of Number (TON) */
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char cid_name[AST_MAX_EXTENSION];
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char cid_ani[AST_MAX_EXTENSION];
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char rdnis[AST_MAX_EXTENSION];
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char dnid[AST_MAX_EXTENSION];
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char exten[AST_MAX_EXTENSION];
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int callingpres; /*!< The value of callling presentation that we're going to use when placing a PRI call */
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char lastcid_num[AST_MAX_EXTENSION];
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char lastcid_name[AST_MAX_EXTENSION];
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/* Internal variables -- Don't touch */
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/* Probably will need DS0 number, DS1 number, and a few other things */
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char dialdest[256]; /* Queued up digits for overlap dialing. They will be sent out as information messages when setup ACK is received */
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int mastertrunkgroup;
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unsigned int alerting:1; /*!< TRUE if channel is alerting/ringing */
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unsigned int alreadyhungup:1; /*!< TRUE if the call has already gone/hungup */
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unsigned int isidlecall:1; /*!< TRUE if this is an idle call */
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unsigned int proceeding:1; /*!< TRUE if call is in a proceeding state */
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unsigned int progress:1; /*!< TRUE if the call has seen progress through the network */
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unsigned int resetting:1; /*!< TRUE if this channel is being reset/restarted */
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unsigned int setup_ack:1; /*!< TRUE if this channel has received a SETUP_ACKNOWLEDGE */
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unsigned int outgoing:1;
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unsigned int digital:1;
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struct ast_channel *owner;
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struct sig_pri_pri *pri;
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q931_call *call; /*!< opaque libpri call control structure */
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int prioffset; /*!< channel number in span */
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int logicalspan; /*!< logical span number within trunk group */
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struct sig_pri_callback *calls;
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void *chan_pvt;
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ast_mutex_t service_lock; /*!< Mutex for service messages */
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};
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struct sig_pri_pri {
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/* Should be set by user */
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int pritimers[PRI_MAX_TIMERS];
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int overlapdial; /*!< In overlap dialing mode */
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int qsigchannelmapping; /*!< QSIG channel mapping type */
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int discardremoteholdretrieval; /*!< shall remote hold or remote retrieval notifications be discarded? */
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int facilityenable; /*!< Enable facility IEs */
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int dchan_logical_span[NUM_DCHANS]; /*!< Logical offset the DCHAN sits in */
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int fds[NUM_DCHANS]; /*!< FD's for d-channels */
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#ifdef HAVE_PRI_SERVICE_MESSAGES
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unsigned int enable_service_message_support:1; /*!< enable SERVICE message support */
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#endif
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#ifdef HAVE_PRI_INBANDDISCONNECT
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unsigned int inbanddisconnect:1; /*!< Should we support inband audio after receiving DISCONNECT? */
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#endif
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int dialplan; /*!< Dialing plan */
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int localdialplan; /*!< Local dialing plan */
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char internationalprefix[10]; /*!< country access code ('00' for european dialplans) */
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char nationalprefix[10]; /*!< area access code ('0' for european dialplans) */
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char localprefix[20]; /*!< area access code + area code ('0'+area code for european dialplans) */
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char privateprefix[20]; /*!< for private dialplans */
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char unknownprefix[20]; /*!< for unknown dialplans */
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long resetinterval; /*!< Interval (in seconds) for resetting unused channels */
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char idleext[AST_MAX_EXTENSION]; /*!< Where to idle extra calls */
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char idlecontext[AST_MAX_CONTEXT]; /*!< What context to use for idle */
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char idledial[AST_MAX_EXTENSION]; /*!< What to dial before dumping */
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int minunused; /*!< Min # of channels to keep empty */
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int minidle; /*!< Min # of "idling" calls to keep active */
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int nodetype; /*!< Node type */
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int switchtype; /*!< Type of switch to emulate */
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int nsf; /*!< Network-Specific Facilities */
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int trunkgroup; /*!< What our trunkgroup is */
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int dchanavail[NUM_DCHANS]; /*!< Whether each channel is available */
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int debug; /*!< set to true if to dump PRI event info (tested but never set) */
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int span; /*!< span number put into user output messages */
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int resetting; /*!< true if span is being reset/restarted */
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int resetpos; /*!< current position during a reset (-1 if not started) */
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int sig; /*!< ISDN signalling type (SIG_PRI, SIG_BRI, SIG_BRI_PTMP, etc...) */
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/* Everything after here is internally set */
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struct pri *dchans[NUM_DCHANS]; /*!< Actual d-channels */
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struct pri *pri; /*!< Currently active D-channel */
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int numchans; /*!< Num of channels we represent */
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struct sig_pri_chan *pvts[MAX_CHANNELS]; /*!< Member channel pvt structs */
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pthread_t master; /*!< Thread of master */
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ast_mutex_t lock; /*!< Mutex */
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time_t lastreset; /*!< time when unused channels were last reset */
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struct sig_pri_callback *calls;
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};
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int sig_pri_call(struct sig_pri_chan *p, struct ast_channel *ast, char *rdest, int timeout, int layer1);
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int sig_pri_hangup(struct sig_pri_chan *p, struct ast_channel *ast);
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int sig_pri_indicate(struct sig_pri_chan *p, struct ast_channel *chan, int condition, const void *data, size_t datalen);
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int sig_pri_answer(struct sig_pri_chan *p, struct ast_channel *ast);
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int sig_pri_available(struct sig_pri_chan *p, int channelmatch, ast_group_t groupmatch, int *busy, int *channelmatched, int *groupmatched);
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void sig_pri_init_pri(struct sig_pri_pri *pri);
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/* If return 0, it means this function was able to handle it (pre setup digits). If non zero, the user of this
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* functions should handle it normally (generate inband DTMF) */
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int sig_pri_digit_begin(struct sig_pri_chan *pvt, struct ast_channel *ast, char digit);
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int sig_pri_start_pri(struct sig_pri_pri *pri);
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void sig_pri_chan_alarm_notify(struct sig_pri_chan *p, int noalarm);
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void pri_event_alarm(struct sig_pri_pri *pri, int index, int before_start_pri);
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void pri_event_noalarm(struct sig_pri_pri *pri, int index, int before_start_pri);
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struct ast_channel *sig_pri_request(struct sig_pri_chan *p, enum sig_pri_law law);
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struct sig_pri_chan *sig_pri_chan_new(void *pvt_data, struct sig_pri_callback *callback, struct sig_pri_pri *pri, int logicalspan, int channo);
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int pri_is_up(struct sig_pri_pri *pri);
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void sig_pri_cli_show_spans(int fd, int span, struct sig_pri_pri *pri);
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void sig_pri_cli_show_span(int fd, int *dchannels, struct sig_pri_pri *pri);
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int pri_send_keypad_facility_exec(struct sig_pri_chan *p, const char *digits);
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int pri_send_callrerouting_facility_exec(struct sig_pri_chan *p, enum ast_channel_state chanstate, const char *destination, const char *original, const char *reason);
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int pri_maintenance_bservice(struct pri *pri, struct sig_pri_chan *p, int changestatus);
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#endif /* _SIG_PRI_H */
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