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asterisk/channels/sig_pri.c

4183 lines
126 KiB
C

/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2009, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* 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. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief PRI signaling module
*
* \author Matthew Fredrickson <creslin@digium.com>
*/
#include "asterisk.h"
#ifdef HAVE_PRI
#include <errno.h>
#include <ctype.h>
#include <signal.h>
#include "asterisk/utils.h"
#include "asterisk/options.h"
#include "asterisk/pbx.h"
#include "asterisk/file.h"
#include "asterisk/callerid.h"
#include "asterisk/say.h"
#include "asterisk/manager.h"
#include "asterisk/astdb.h"
#include "asterisk/causes.h"
#include "asterisk/musiconhold.h"
#include "asterisk/cli.h"
#include "asterisk/transcap.h"
#include "asterisk/features.h"
#include "sig_pri.h"
#ifndef PRI_EVENT_FACILITY
#error please update libpri
#endif
/* define this to send PRI user-user information elements */
#undef SUPPORT_USERUSER
#if 0
#define DEFAULT_PRI_DEBUG (PRI_DEBUG_Q931_DUMP | PRI_DEBUG_Q921_DUMP | PRI_DEBUG_Q921_RAW | PRI_DEBUG_Q921_STATE)
#else
#define DEFAULT_PRI_DEBUG 0
#endif
static int pri_matchdigittimeout = 3000;
static int pri_gendigittimeout = 8000;
#define DCHAN_NOTINALARM (1 << 0)
#define DCHAN_UP (1 << 1)
/* Defines to help decode the encoded event channel id. */
#define PRI_CHANNEL(p) ((p) & 0xff)
#define PRI_SPAN(p) (((p) >> 8) & 0xff)
#define PRI_EXPLICIT (1 << 16)
#define PRI_CIS_CALL (1 << 17) /* Call is using the D channel only. */
#define PRI_HELD_CALL (1 << 18)
#define DCHAN_AVAILABLE (DCHAN_NOTINALARM | DCHAN_UP)
#define PRI_DEADLOCK_AVOIDANCE(p) \
do { \
sig_pri_unlock_private(p); \
usleep(1); \
sig_pri_lock_private(p); \
} while (0)
static int pri_active_dchan_index(struct sig_pri_pri *pri);
static inline void pri_rel(struct sig_pri_pri *pri)
{
ast_mutex_unlock(&pri->lock);
}
static unsigned int PVT_TO_CHANNEL(struct sig_pri_chan *p)
{
int res = (((p)->prioffset) | ((p)->logicalspan << 8) | (p->mastertrunkgroup ? PRI_EXPLICIT : 0));
ast_debug(5, "prioffset: %d mastertrunkgroup: %d logicalspan: %d result: %d\n",
p->prioffset, p->mastertrunkgroup, p->logicalspan, res);
return res;
}
static void sig_pri_handle_dchan_exception(struct sig_pri_pri *pri, int index)
{
if (pri->calls->handle_dchan_exception)
pri->calls->handle_dchan_exception(pri, index);
}
static void sig_pri_set_dialing(struct sig_pri_chan *p, int flag)
{
if (p->calls->set_dialing)
p->calls->set_dialing(p->chan_pvt, flag);
}
/*!
* \internal
* \brief Set the caller id information in the parent module.
* \since 1.6.3
*
* \param p sig_pri channel structure.
*
* \return Nothing
*/
static void sig_pri_set_caller_id(struct sig_pri_chan *p)
{
struct ast_party_caller caller;
if (p->calls->set_callerid) {
ast_party_caller_init(&caller);
caller.id.number = p->cid_num;
caller.id.name = p->cid_name;
if (!ast_strlen_zero(p->cid_subaddr)) {
caller.id.subaddress.valid = 1;
//caller.id.subaddress.type = 0;/* nsap */
//caller.id.subaddress.odd_even_indicator = 0;
caller.id.subaddress.str = p->cid_subaddr;
}
caller.id.number_type = p->cid_ton;
caller.id.number_presentation = p->callingpres;
caller.ani = p->cid_ani;
caller.ani2 = p->cid_ani2;
p->calls->set_callerid(p->chan_pvt, &caller);
}
}
/*!
* \internal
* \brief Set the Dialed Number Identifier.
* \since 1.6.3
*
* \param p sig_pri channel structure.
* \param dnid Dialed Number Identifier string.
*
* \return Nothing
*/
static void sig_pri_set_dnid(struct sig_pri_chan *p, const char *dnid)
{
if (p->calls->set_dnid) {
p->calls->set_dnid(p->chan_pvt, dnid);
}
}
/*!
* \internal
* \brief Set the Redirecting Directory Number Information Service (RDNIS).
* \since 1.6.3
*
* \param p sig_pri channel structure.
* \param rdnis Redirecting Directory Number Information Service (RDNIS) string.
*
* \return Nothing
*/
static void sig_pri_set_rdnis(struct sig_pri_chan *p, const char *rdnis)
{
if (p->calls->set_rdnis) {
p->calls->set_rdnis(p->chan_pvt, rdnis);
}
}
static void sig_pri_unlock_private(struct sig_pri_chan *p)
{
if (p->calls->unlock_private)
p->calls->unlock_private(p->chan_pvt);
}
static void sig_pri_lock_private(struct sig_pri_chan *p)
{
if (p->calls->lock_private)
p->calls->lock_private(p->chan_pvt);
}
static inline int pri_grab(struct sig_pri_chan *p, struct sig_pri_pri *pri)
{
int res;
/* Grab the lock first */
do {
res = ast_mutex_trylock(&pri->lock);
if (res) {
PRI_DEADLOCK_AVOIDANCE(p);
}
} while (res);
/* Then break the poll */
pthread_kill(pri->master, SIGURG);
return 0;
}
/*!
* \internal
* \brief Convert PRI redirecting reason to asterisk version.
* \since 1.6.3
*
* \param pri_reason PRI redirecting reason.
*
* \return Equivalent asterisk redirecting reason value.
*/
static enum AST_REDIRECTING_REASON pri_to_ast_reason(int pri_reason)
{
enum AST_REDIRECTING_REASON ast_reason;
switch (pri_reason) {
case PRI_REDIR_FORWARD_ON_BUSY:
ast_reason = AST_REDIRECTING_REASON_USER_BUSY;
break;
case PRI_REDIR_FORWARD_ON_NO_REPLY:
ast_reason = AST_REDIRECTING_REASON_NO_ANSWER;
break;
case PRI_REDIR_DEFLECTION:
ast_reason = AST_REDIRECTING_REASON_DEFLECTION;
break;
case PRI_REDIR_UNCONDITIONAL:
ast_reason = AST_REDIRECTING_REASON_UNCONDITIONAL;
break;
case PRI_REDIR_UNKNOWN:
default:
ast_reason = AST_REDIRECTING_REASON_UNKNOWN;
break;
}
return ast_reason;
}
/*!
* \internal
* \brief Convert asterisk redirecting reason to PRI version.
* \since 1.6.3
*
* \param ast_reason Asterisk redirecting reason.
*
* \return Equivalent PRI redirecting reason value.
*/
static int ast_to_pri_reason(enum AST_REDIRECTING_REASON ast_reason)
{
int pri_reason;
switch (ast_reason) {
case AST_REDIRECTING_REASON_USER_BUSY:
pri_reason = PRI_REDIR_FORWARD_ON_BUSY;
break;
case AST_REDIRECTING_REASON_NO_ANSWER:
pri_reason = PRI_REDIR_FORWARD_ON_NO_REPLY;
break;
case AST_REDIRECTING_REASON_UNCONDITIONAL:
pri_reason = PRI_REDIR_UNCONDITIONAL;
break;
case AST_REDIRECTING_REASON_DEFLECTION:
pri_reason = PRI_REDIR_DEFLECTION;
break;
case AST_REDIRECTING_REASON_UNKNOWN:
default:
pri_reason = PRI_REDIR_UNKNOWN;
break;
}
return pri_reason;
}
/*!
* \internal
* \brief Convert PRI number presentation to asterisk version.
* \since 1.6.3
*
* \param pri_presentation PRI number presentation.
*
* \return Equivalent asterisk number presentation value.
*/
static int pri_to_ast_presentation(int pri_presentation)
{
int ast_presentation;
switch (pri_presentation) {
case PRES_ALLOWED_USER_NUMBER_NOT_SCREENED:
ast_presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
break;
case PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN:
ast_presentation = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
break;
case PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN:
ast_presentation = AST_PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN;
break;
case PRES_ALLOWED_NETWORK_NUMBER:
ast_presentation = AST_PRES_ALLOWED_NETWORK_NUMBER;
break;
case PRES_PROHIB_USER_NUMBER_NOT_SCREENED:
ast_presentation = AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
break;
case PRES_PROHIB_USER_NUMBER_PASSED_SCREEN:
ast_presentation = AST_PRES_PROHIB_USER_NUMBER_PASSED_SCREEN;
break;
case PRES_PROHIB_USER_NUMBER_FAILED_SCREEN:
ast_presentation = AST_PRES_PROHIB_USER_NUMBER_FAILED_SCREEN;
break;
case PRES_PROHIB_NETWORK_NUMBER:
ast_presentation = AST_PRES_PROHIB_NETWORK_NUMBER;
break;
case PRES_NUMBER_NOT_AVAILABLE:
ast_presentation = AST_PRES_NUMBER_NOT_AVAILABLE;
break;
default:
ast_presentation = AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
break;
}
return ast_presentation;
}
/*!
* \internal
* \brief Convert asterisk number presentation to PRI version.
* \since 1.6.3
*
* \param ast_presentation Asterisk number presentation.
*
* \return Equivalent PRI number presentation value.
*/
static int ast_to_pri_presentation(int ast_presentation)
{
int pri_presentation;
switch (ast_presentation) {
case AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED:
pri_presentation = PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
break;
case AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN:
pri_presentation = PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
break;
case AST_PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN:
pri_presentation = PRES_ALLOWED_USER_NUMBER_FAILED_SCREEN;
break;
case AST_PRES_ALLOWED_NETWORK_NUMBER:
pri_presentation = PRES_ALLOWED_NETWORK_NUMBER;
break;
case AST_PRES_PROHIB_USER_NUMBER_NOT_SCREENED:
pri_presentation = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
break;
case AST_PRES_PROHIB_USER_NUMBER_PASSED_SCREEN:
pri_presentation = PRES_PROHIB_USER_NUMBER_PASSED_SCREEN;
break;
case AST_PRES_PROHIB_USER_NUMBER_FAILED_SCREEN:
pri_presentation = PRES_PROHIB_USER_NUMBER_FAILED_SCREEN;
break;
case AST_PRES_PROHIB_NETWORK_NUMBER:
pri_presentation = PRES_PROHIB_NETWORK_NUMBER;
break;
case AST_PRES_NUMBER_NOT_AVAILABLE:
pri_presentation = PRES_NUMBER_NOT_AVAILABLE;
break;
default:
pri_presentation = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
break;
}
return pri_presentation;
}
/*!
* \internal
* \brief Determine the overall presentation value for the given party.
* \since 1.6.3
*
* \param id Party to determine the overall presentation value.
*
* \return Overall presentation value for the given party converted to ast values.
*/
static int overall_ast_presentation(const struct pri_party_id *id)
{
int number_priority;
int number_value;
int number_screening;
int name_priority;
int name_value;
/* Determine name presentation priority. */
if (!id->name.valid) {
name_value = PRI_PRES_UNAVAILABLE;
name_priority = 3;
} else {
name_value = id->name.presentation & PRI_PRES_RESTRICTION;
switch (name_value) {
case PRI_PRES_RESTRICTED:
name_priority = 0;
break;
case PRI_PRES_ALLOWED:
name_priority = 1;
break;
case PRI_PRES_UNAVAILABLE:
name_priority = 2;
break;
default:
name_value = PRI_PRES_UNAVAILABLE;
name_priority = 3;
break;
}
}
/* Determine number presentation priority. */
if (!id->number.valid) {
number_screening = PRI_PRES_USER_NUMBER_UNSCREENED;
number_value = PRI_PRES_UNAVAILABLE;
number_priority = 3;
} else {
number_screening = id->number.presentation & PRI_PRES_NUMBER_TYPE;
number_value = id->number.presentation & PRI_PRES_RESTRICTION;
switch (number_value) {
case PRI_PRES_RESTRICTED:
number_priority = 0;
break;
case PRI_PRES_ALLOWED:
number_priority = 1;
break;
case PRI_PRES_UNAVAILABLE:
number_priority = 2;
break;
default:
number_screening = PRI_PRES_USER_NUMBER_UNSCREENED;
number_value = PRI_PRES_UNAVAILABLE;
number_priority = 3;
break;
}
}
/* Select the wining presentation value. */
if (name_priority < number_priority) {
number_value = name_value;
}
return pri_to_ast_presentation(number_value | number_screening);
}
#if defined(HAVE_PRI_SUBADDR)
/*!
* \internal
* \brief Fill in the asterisk party subaddress from the given PRI party subaddress.
* \since 1.6.3
*
* \param ast_subaddress Asterisk party subaddress structure.
* \param pri_subaddress PRI party subaddress structure.
*
* \return Nothing
*
*/
static void sig_pri_set_subaddress(struct ast_party_subaddress *ast_subaddress, const struct pri_party_subaddress *pri_subaddress)
{
char *cnum, *ptr;
int x, len;
if (ast_subaddress->str) {
ast_free(ast_subaddress->str);
}
if (pri_subaddress->length <= 0) {
ast_party_subaddress_init(ast_subaddress);
return;
}
if (!pri_subaddress->type) {
/* NSAP */
ast_subaddress->str = ast_strdup((char *) pri_subaddress->data);
} else {
/* User Specified */
if (!(cnum = ast_malloc(2 * pri_subaddress->length + 1))) {
ast_party_subaddress_init(ast_subaddress);
return;
}
ptr = cnum;
len = pri_subaddress->length - 1; /* -1 account for zero based indexing */
for (x = 0; x < len; ++x) {
ptr += sprintf(ptr, "%02x", pri_subaddress->data[x]);
}
if (pri_subaddress->odd_even_indicator) {
/* ODD */
sprintf(ptr, "%01x", (pri_subaddress->data[len]) >> 4);
} else {
/* EVEN */
sprintf(ptr, "%02x", pri_subaddress->data[len]);
}
ast_subaddress->str = cnum;
}
ast_subaddress->type = pri_subaddress->type;
ast_subaddress->odd_even_indicator = pri_subaddress->odd_even_indicator;
ast_subaddress->valid = 1;
}
#endif /* defined(HAVE_PRI_SUBADDR) */
#if defined(HAVE_PRI_SUBADDR)
static unsigned char ast_pri_pack_hex_char(char c)
{
unsigned char res;
if (c < '0') {
res = 0;
} else if (c < ('9' + 1)) {
res = c - '0';
} else if (c < 'A') {
res = 0;
} else if (c < ('F' + 1)) {
res = c - 'A' + 10;
} else if (c < 'a') {
res = 0;
} else if (c < ('f' + 1)) {
res = c - 'a' + 10;
} else {
res = 0;
}
return res;
}
#endif /* defined(HAVE_PRI_SUBADDR) */
#if defined(HAVE_PRI_SUBADDR)
/*!
* \internal
* \brief Convert a null terminated hexadecimal string to a packed hex byte array.
* \details left justified, with 0 padding if odd length.
* \since 1.6.3
*
* \param dst pointer to packed byte array.
* \param src pointer to null terminated hexadecimal string.
* \param maxlen destination array size.
*
* \return Length of byte array
*
* \note The dst is not an ASCIIz string.
* \note The src is an ASCIIz hex string.
*/
static int ast_pri_pack_hex_string(unsigned char *dst, char *src, int maxlen)
{
int res = 0;
int len = strlen(src);
if (len > (2 * maxlen)) {
len = 2 * maxlen;
}
res = len / 2 + len % 2;
while (len > 1) {
*dst = ast_pri_pack_hex_char(*src) << 4;
src++;
*dst |= ast_pri_pack_hex_char(*src);
dst++, src++;
len -= 2;
}
if (len) { /* 1 left */
*dst = ast_pri_pack_hex_char(*src) << 4;
}
return res;
}
#endif /* defined(HAVE_PRI_SUBADDR) */
#if defined(HAVE_PRI_SUBADDR)
/*!
* \internal
* \brief Fill in the PRI party subaddress from the given asterisk party subaddress.
* \since 1.6.3
*
* \param pri_subaddress PRI party subaddress structure.
* \param ast_subaddress Asterisk party subaddress structure.
*
* \return Nothing
*
* \note Assumes that pri_subaddress has been previously memset to zero.
*/
static void sig_pri_party_subaddress_from_ast(struct pri_party_subaddress *pri_subaddress, const struct ast_party_subaddress *ast_subaddress)
{
if (ast_subaddress->valid && !ast_strlen_zero(ast_subaddress->str)) {
pri_subaddress->type = ast_subaddress->type;
if (!ast_subaddress->type) {
/* 0 = NSAP */
ast_copy_string((char *) pri_subaddress->data, ast_subaddress->str,
sizeof(pri_subaddress->data));
pri_subaddress->length = strlen((char *) pri_subaddress->data);
pri_subaddress->odd_even_indicator = 0;
pri_subaddress->valid = 1;
} else {
/* 2 = User Specified */
/*
* Copy HexString to packed HexData,
* if odd length then right pad trailing byte with 0
*/
int length = ast_pri_pack_hex_string(pri_subaddress->data,
ast_subaddress->str, sizeof(pri_subaddress->data));
pri_subaddress->length = length;
pri_subaddress->odd_even_indicator = (length & 1);
pri_subaddress->valid = 1;
}
}
}
#endif /* defined(HAVE_PRI_SUBADDR) */
/*!
* \internal
* \brief Fill in the PRI party id from the given asterisk party id.
* \since 1.6.3
*
* \param pri_id PRI party id structure.
* \param ast_id Asterisk party id structure.
*
* \return Nothing
*
* \note Assumes that pri_id has been previously memset to zero.
*/
static void sig_pri_party_id_from_ast(struct pri_party_id *pri_id, const struct ast_party_id *ast_id)
{
int presentation;
presentation = ast_to_pri_presentation(ast_id->number_presentation);
if (!ast_strlen_zero(ast_id->name)) {
pri_id->name.valid = 1;
pri_id->name.presentation = presentation;
pri_id->name.char_set = PRI_CHAR_SET_ISO8859_1;
ast_copy_string(pri_id->name.str, ast_id->name, sizeof(pri_id->name.str));
}
if (!ast_strlen_zero(ast_id->number)) {
pri_id->number.valid = 1;
pri_id->number.presentation = presentation;
pri_id->number.plan = ast_id->number_type;
ast_copy_string(pri_id->number.str, ast_id->number, sizeof(pri_id->number.str));
}
#if defined(HAVE_PRI_SUBADDR)
sig_pri_party_subaddress_from_ast(&pri_id->subaddress, &ast_id->subaddress);
#endif /* defined(HAVE_PRI_SUBADDR) */
}
/*!
* \internal
* \brief Update the PRI redirecting information for the current call.
* \since 1.6.3
*
* \param pvt sig_pri private channel structure.
* \param ast Asterisk channel
*
* \return Nothing
*
* \note Assumes that the PRI lock is already obtained.
*/
static void sig_pri_redirecting_update(struct sig_pri_chan *pvt, struct ast_channel *ast)
{
struct pri_party_redirecting pri_redirecting;
struct ast_party_redirecting ast_redirecting;
/* Gather asterisk redirecting data */
ast_redirecting = ast->redirecting;
ast_redirecting.from.number = ast->cid.cid_rdnis;
/*! \todo XXX Original called data can be put in a channel data store that is inherited. */
memset(&pri_redirecting, 0, sizeof(pri_redirecting));
sig_pri_party_id_from_ast(&pri_redirecting.from, &ast_redirecting.from);
sig_pri_party_id_from_ast(&pri_redirecting.to, &ast_redirecting.to);
pri_redirecting.count = ast_redirecting.count;
pri_redirecting.reason = ast_to_pri_reason(ast_redirecting.reason);
pri_redirecting_update(pvt->pri->pri, pvt->call, &pri_redirecting);
}
/*!
* \internal
* \brief Reset DTMF detector.
* \since 1.6.3
*
* \param p sig_pri channel structure.
*
* \return Nothing
*/
static void sig_pri_dsp_reset_and_flush_digits(struct sig_pri_chan *p)
{
if (p->calls->dsp_reset_and_flush_digits) {
p->calls->dsp_reset_and_flush_digits(p->chan_pvt);
}
}
static int sig_pri_set_echocanceller(struct sig_pri_chan *p, int enable)
{
if (p->calls->set_echocanceller)
return p->calls->set_echocanceller(p->chan_pvt, enable);
else
return -1;
}
static void sig_pri_fixup_chans(struct sig_pri_chan *old_chan, struct sig_pri_chan *new_chan)
{
if (old_chan->calls->fixup_chans)
old_chan->calls->fixup_chans(old_chan->chan_pvt, new_chan->chan_pvt);
}
static int sig_pri_play_tone(struct sig_pri_chan *p, enum sig_pri_tone tone)
{
if (p->calls->play_tone)
return p->calls->play_tone(p->chan_pvt, tone);
else
return -1;
}
static struct ast_channel *sig_pri_new_ast_channel(struct sig_pri_chan *p, int state, int startpbx, int ulaw, int transfercapability, char *exten, const struct ast_channel *requestor)
{
struct ast_channel *c;
if (p->calls->new_ast_channel)
c = p->calls->new_ast_channel(p->chan_pvt, state, startpbx, ulaw, transfercapability, exten, requestor);
else
return NULL;
if (!p->owner)
p->owner = c;
p->isidlecall = 0;
p->alreadyhungup = 0;
return c;
}
struct ast_channel *sig_pri_request(struct sig_pri_chan *p, enum sig_pri_law law, const struct ast_channel *requestor)
{
struct ast_channel *ast;
ast_log(LOG_DEBUG, "%s %d\n", __FUNCTION__, p->channel);
p->outgoing = 1;
ast = sig_pri_new_ast_channel(p, AST_STATE_RESERVED, 0, law, 0, p->exten, requestor);
if (!ast) {
p->outgoing = 0;
}
return ast;
}
int pri_is_up(struct sig_pri_pri *pri)
{
int x;
for (x = 0; x < NUM_DCHANS; x++) {
if (pri->dchanavail[x] == DCHAN_AVAILABLE)
return 1;
}
return 0;
}
static char *pri_order(int level)
{
switch (level) {
case 0:
return "Primary";
case 1:
return "Secondary";
case 2:
return "Tertiary";
case 3:
return "Quaternary";
default:
return "<Unknown>";
}
}
/* Returns index of the active dchan */
static int pri_active_dchan_index(struct sig_pri_pri *pri)
{
int x;
for (x = 0; x < NUM_DCHANS; x++) {
if ((pri->dchans[x] == pri->pri))
return x;
}
ast_log(LOG_WARNING, "No active dchan found!\n");
return -1;
}
static int pri_find_dchan(struct sig_pri_pri *pri)
{
int oldslot = -1;
struct pri *old;
int newslot = -1;
int x;
old = pri->pri;
for (x = 0; x < NUM_DCHANS; x++) {
if ((pri->dchanavail[x] == DCHAN_AVAILABLE) && (newslot < 0))
newslot = x;
if (pri->dchans[x] == old) {
oldslot = x;
}
}
if (newslot < 0) {
newslot = 0;
/* This is annoying to see on non persistent layer 2 connections. Let's not complain in that case */
if (pri->sig != SIG_BRI_PTMP) {
ast_log(LOG_WARNING, "No D-channels available! Using Primary channel as D-channel anyway!\n");
}
}
if (old && (oldslot != newslot))
ast_log(LOG_NOTICE, "Switching from d-channel fd %d to fd %d!\n",
pri->fds[oldslot], pri->fds[newslot]);
pri->pri = pri->dchans[newslot];
return 0;
}
static void pri_queue_frame(struct sig_pri_chan *p, struct ast_frame *f, struct sig_pri_pri *pri)
{
/* We must unlock the PRI to avoid the possibility of a deadlock */
if (pri)
ast_mutex_unlock(&pri->lock);
for (;;) {
if (p->owner) {
if (ast_channel_trylock(p->owner)) {
PRI_DEADLOCK_AVOIDANCE(p);
} else {
ast_queue_frame(p->owner, f);
ast_channel_unlock(p->owner);
break;
}
} else
break;
}
if (pri)
ast_mutex_lock(&pri->lock);
}
static void pri_queue_control(struct sig_pri_chan *p, int subclass, struct sig_pri_pri *pri)
{
struct ast_frame f = {AST_FRAME_CONTROL, };
if (p->calls->queue_control) {
p->calls->queue_control(p->chan_pvt, subclass);
}
f.subclass.integer = subclass;
pri_queue_frame(p, &f, pri);
}
static int pri_find_principle(struct sig_pri_pri *pri, int channel, q931_call *call)
{
int x;
int span;
int principle;
if (channel < 0) {
/* Channel is not picked yet. */
return -1;
}
if (channel & PRI_HELD_CALL) {
if (!call) {
/* Cannot find a held call without a call. */
return -1;
}
principle = -1;
for (x = 0; x < pri->numchans; ++x) {
if (pri->pvts[x]
&& pri->pvts[x]->call == call) {
principle = x;
break;
}
}
return principle;
}
span = PRI_SPAN(channel);
if (!(channel & PRI_EXPLICIT)) {
int index;
index = pri_active_dchan_index(pri);
if (index == -1) {
return -1;
}
span = pri->dchan_logical_span[index];
}
channel = PRI_CHANNEL(channel);
principle = -1;
for (x = 0; x < pri->numchans; x++) {
if (pri->pvts[x]
&& pri->pvts[x]->prioffset == channel
&& pri->pvts[x]->logicalspan == span
&& !pri->pvts[x]->no_b_channel) {
principle = x;
break;
}
}
return principle;
}
static int pri_fixup_principle(struct sig_pri_pri *pri, int principle, q931_call *call)
{
int x;
if (principle < 0 || pri->numchans <= principle) {
/* Out of rannge */
return -1;
}
if (!call) {
/* No call */
return principle;
}
if (pri->pvts[principle] && pri->pvts[principle]->call == call) {
/* Call is already on the specified principle. */
return principle;
}
/* Find the old principle location. */
for (x = 0; x < pri->numchans; x++) {
struct sig_pri_chan *new_chan;
struct sig_pri_chan *old_chan;
if (!pri->pvts[x] || pri->pvts[x]->call != call) {
continue;
}
/* Found our call */
new_chan = pri->pvts[principle];
old_chan = pri->pvts[x];
ast_verb(3, "Moving call from channel %d to channel %d\n",
old_chan->channel, new_chan->channel);
if (new_chan->owner) {
ast_log(LOG_WARNING,
"Can't fix up channel from %d to %d because %d is already in use\n",
old_chan->channel, new_chan->channel, new_chan->channel);
return -1;
}
sig_pri_fixup_chans(old_chan, new_chan);
/* Fix it all up now */
new_chan->owner = old_chan->owner;
old_chan->owner = NULL;
new_chan->call = old_chan->call;
old_chan->call = NULL;
/* Transfer flags from the old channel. */
new_chan->alerting = old_chan->alerting;
new_chan->alreadyhungup = old_chan->alreadyhungup;
new_chan->isidlecall = old_chan->isidlecall;
new_chan->proceeding = old_chan->proceeding;
new_chan->progress = old_chan->progress;
new_chan->setup_ack = old_chan->setup_ack;
new_chan->outgoing = old_chan->outgoing;
new_chan->digital = old_chan->digital;
old_chan->alerting = 0;
old_chan->alreadyhungup = 0;
old_chan->isidlecall = 0;
old_chan->proceeding = 0;
old_chan->progress = 0;
old_chan->setup_ack = 0;
old_chan->outgoing = 0;
old_chan->digital = 0;
/* More stuff to transfer to the new channel. */
#if defined(HAVE_PRI_REVERSE_CHARGE)
new_chan->reverse_charging_indication = old_chan->reverse_charging_indication;
#endif /* defined(HAVE_PRI_REVERSE_CHARGE) */
#if defined(HAVE_PRI_SETUP_KEYPAD)
strcpy(new_chan->keypad_digits, old_chan->keypad_digits);
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
if (new_chan->no_b_channel) {
/* Copy the real channel configuration to the no B channel interface. */
new_chan->hidecallerid = old_chan->hidecallerid;
new_chan->hidecalleridname = old_chan->hidecalleridname;
new_chan->immediate = old_chan->immediate;
new_chan->priexclusive = old_chan->priexclusive;
new_chan->priindication_oob = old_chan->priindication_oob;
new_chan->use_callerid = old_chan->use_callerid;
new_chan->use_callingpres = old_chan->use_callingpres;
new_chan->stripmsd = old_chan->stripmsd;
strcpy(new_chan->context, old_chan->context);
strcpy(new_chan->mohinterpret, old_chan->mohinterpret);
/* Become a member of the old channel span/trunk-group. */
new_chan->logicalspan = old_chan->logicalspan;
new_chan->mastertrunkgroup = old_chan->mastertrunkgroup;
}
return principle;
}
ast_log(LOG_WARNING, "Call specified, but not found?\n");
return -1;
}
static char * redirectingreason2str(int redirectingreason)
{
switch (redirectingreason) {
case 0:
return "UNKNOWN";
case 1:
return "BUSY";
case 2:
return "NO_REPLY";
case 0xF:
return "UNCONDITIONAL";
default:
return "NOREDIRECT";
}
}
static char *dialplan2str(int dialplan)
{
if (dialplan == -1) {
return("Dynamically set dialplan in ISDN");
}
return (pri_plan2str(dialplan));
}
static void apply_plan_to_number(char *buf, size_t size, const struct sig_pri_pri *pri, const char *number, const int plan)
{
switch (plan) {
case PRI_INTERNATIONAL_ISDN: /* Q.931 dialplan == 0x11 international dialplan => prepend international prefix digits */
snprintf(buf, size, "%s%s", pri->internationalprefix, number);
break;
case PRI_NATIONAL_ISDN: /* Q.931 dialplan == 0x21 national dialplan => prepend national prefix digits */
snprintf(buf, size, "%s%s", pri->nationalprefix, number);
break;
case PRI_LOCAL_ISDN: /* Q.931 dialplan == 0x41 local dialplan => prepend local prefix digits */
snprintf(buf, size, "%s%s", pri->localprefix, number);
break;
case PRI_PRIVATE: /* Q.931 dialplan == 0x49 private dialplan => prepend private prefix digits */
snprintf(buf, size, "%s%s", pri->privateprefix, number);
break;
case PRI_UNKNOWN: /* Q.931 dialplan == 0x00 unknown dialplan => prepend unknown prefix digits */
snprintf(buf, size, "%s%s", pri->unknownprefix, number);
break;
default: /* other Q.931 dialplan => don't twiddle with callingnum */
snprintf(buf, size, "%s", number);
break;
}
}
/*! \note Assumes the pri->lock is already obtained. */
static int pri_check_restart(struct sig_pri_pri *pri)
{
#ifdef HAVE_PRI_SERVICE_MESSAGES
tryanotherpos:
#endif
do {
pri->resetpos++;
} while (pri->resetpos < pri->numchans
&& (!pri->pvts[pri->resetpos]
|| pri->pvts[pri->resetpos]->no_b_channel
|| pri->pvts[pri->resetpos]->call
|| pri->pvts[pri->resetpos]->resetting));
if (pri->resetpos < pri->numchans) {
#ifdef HAVE_PRI_SERVICE_MESSAGES
char db_chan_name[20], db_answer[5], state;
int why;
/* check if the channel is out of service */
snprintf(db_chan_name, sizeof(db_chan_name), "%s/%d:%d", dahdi_db, pri->span, pri->pvts[pri->resetpos]->channel);
/* if so, try next channel */
if (!ast_db_get(db_chan_name, SRVST_DBKEY, db_answer, sizeof(db_answer))) {
sscanf(db_answer, "%1c:%30d", &state, &why);
if (why) {
ast_log(LOG_NOTICE, "span '%d' channel '%d' out-of-service (reason: %s), not sending RESTART\n", pri->span,
pri->pvts[pri->resetpos]->channel, (why & SRVST_FAREND) ? (why & SRVST_NEAREND) ? "both ends" : "far end" : "near end");
goto tryanotherpos;
}
}
#endif
/* Mark the channel as resetting and restart it */
pri->pvts[pri->resetpos]->resetting = 1;
pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[pri->resetpos]));
} else {
pri->resetting = 0;
time(&pri->lastreset);
}
return 0;
}
static int pri_find_empty_chan(struct sig_pri_pri *pri, int backwards)
{
int x;
if (backwards)
x = pri->numchans;
else
x = 0;
for (;;) {
if (backwards && (x < 0))
break;
if (!backwards && (x >= pri->numchans))
break;
if (pri->pvts[x]
&& !pri->pvts[x]->no_b_channel
&& !pri->pvts[x]->inalarm
&& !pri->pvts[x]->owner) {
ast_debug(1, "Found empty available channel %d/%d\n",
pri->pvts[x]->logicalspan, pri->pvts[x]->prioffset);
return x;
}
if (backwards)
x--;
else
x++;
}
return -1;
}
#if defined(HAVE_PRI_CALL_HOLD)
/*!
* \internal
* \brief Find or create an empty no-B-channel interface to use.
* \since 1.6.3
*
* \param pri sig_pri span controller to find interface.
*
* \note Assumes the pri->lock is already obtained.
*
* \retval array-index into private pointer array on success.
* \retval -1 on error.
*/
static int pri_find_empty_nobch(struct sig_pri_pri *pri)
{
int idx;
for (idx = 0; idx < pri->numchans; ++idx) {
if (pri->pvts[idx]
&& pri->pvts[idx]->no_b_channel
&& !pri->pvts[idx]->inalarm
&& !pri->pvts[idx]->owner) {
ast_debug(1, "Found empty available no B channel interface\n");
return idx;
}
}
/* Need to create a new interface. */
if (pri->calls->new_nobch_intf) {
idx = pri->calls->new_nobch_intf(pri);
} else {
idx = -1;
}
return idx;
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
/*!
* \internal
* \brief Find the channel associated with the libpri call.
* \since 1.6.3
*
* \param pri sig_pri span controller to find interface.
* \param call LibPRI opaque call pointer to find.
*
* \note Assumes the pri->lock is already obtained.
*
* \retval array-index into private pointer array on success.
* \retval -1 on error.
*/
static int pri_find_pri_call(struct sig_pri_pri *pri, q931_call *call)
{
int idx;
for (idx = 0; idx < pri->numchans; ++idx) {
if (pri->pvts[idx] && pri->pvts[idx]->call == call) {
/* Found the channel */
return idx;
}
}
return -1;
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
static void *do_idle_thread(void *vchan)
{
struct ast_channel *chan = vchan;
struct sig_pri_chan *pvt = chan->tech_pvt;
struct ast_frame *f;
char ex[80];
/* Wait up to 30 seconds for an answer */
int newms, ms = 30000;
ast_verb(3, "Initiating idle call on channel %s\n", chan->name);
snprintf(ex, sizeof(ex), "%d/%s", pvt->channel, pvt->pri->idledial);
if (ast_call(chan, ex, 0)) {
ast_log(LOG_WARNING, "Idle dial failed on '%s' to '%s'\n", chan->name, ex);
ast_hangup(chan);
return NULL;
}
while ((newms = ast_waitfor(chan, ms)) > 0) {
f = ast_read(chan);
if (!f) {
/* Got hangup */
break;
}
if (f->frametype == AST_FRAME_CONTROL) {
switch (f->subclass.integer) {
case AST_CONTROL_ANSWER:
/* Launch the PBX */
ast_copy_string(chan->exten, pvt->pri->idleext, sizeof(chan->exten));
ast_copy_string(chan->context, pvt->pri->idlecontext, sizeof(chan->context));
chan->priority = 1;
ast_verb(4, "Idle channel '%s' answered, sending to %s@%s\n", chan->name, chan->exten, chan->context);
ast_pbx_run(chan);
/* It's already hungup, return immediately */
return NULL;
case AST_CONTROL_BUSY:
ast_verb(4, "Idle channel '%s' busy, waiting...\n", chan->name);
break;
case AST_CONTROL_CONGESTION:
ast_verb(4, "Idle channel '%s' congested, waiting...\n", chan->name);
break;
};
}
ast_frfree(f);
ms = newms;
}
/* Hangup the channel since nothing happend */
ast_hangup(chan);
return NULL;
}
static void *pri_ss_thread(void *data)
{
struct sig_pri_chan *p = data;
struct ast_channel *chan = p->owner;
char exten[AST_MAX_EXTENSION];
int res;
int len;
int timeout;
if (!chan) {
/* We lost the owner before we could get started. */
return NULL;
}
/*
* In the bizarre case where the channel has become a zombie before we
* even get started here, abort safely.
*/
if (!chan->tech_pvt) {
ast_log(LOG_WARNING, "Channel became a zombie before simple switch could be started (%s)\n", chan->name);
ast_hangup(chan);
return NULL;
}
ast_verb(3, "Starting simple switch on '%s'\n", chan->name);
sig_pri_dsp_reset_and_flush_digits(p);
/* Now loop looking for an extension */
ast_copy_string(exten, p->exten, sizeof(exten));
len = strlen(exten);
res = 0;
while ((len < AST_MAX_EXTENSION-1) && ast_matchmore_extension(chan, chan->context, exten, 1, p->cid_num)) {
if (len && !ast_ignore_pattern(chan->context, exten))
sig_pri_play_tone(p, -1);
else
sig_pri_play_tone(p, SIG_PRI_TONE_DIALTONE);
if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num))
timeout = pri_matchdigittimeout;
else
timeout = pri_gendigittimeout;
res = ast_waitfordigit(chan, timeout);
if (res < 0) {
ast_log(LOG_DEBUG, "waitfordigit returned < 0...\n");
ast_hangup(chan);
return NULL;
} else if (res) {
exten[len++] = res;
exten[len] = '\0';
} else
goto exit;
}
/* if no extension was received ('unspecified') on overlap call, use the 's' extension */
if (ast_strlen_zero(exten)) {
ast_verb(3, "Going to extension s|1 because of empty extension received on overlap call\n");
exten[0] = 's';
exten[1] = '\0';
} else {
if (chan->cid.cid_dnid) {
ast_free(chan->cid.cid_dnid);
}
chan->cid.cid_dnid = ast_strdup(exten);
}
sig_pri_play_tone(p, -1);
if (ast_exists_extension(chan, chan->context, exten, 1, p->cid_num)) {
/* Start the real PBX */
ast_copy_string(chan->exten, exten, sizeof(chan->exten));
sig_pri_dsp_reset_and_flush_digits(p);
sig_pri_set_echocanceller(p, 1);
ast_setstate(chan, AST_STATE_RING);
res = ast_pbx_run(chan);
if (res) {
ast_log(LOG_WARNING, "PBX exited non-zero!\n");
}
} else {
ast_log(LOG_DEBUG, "No such possible extension '%s' in context '%s'\n", exten, chan->context);
chan->hangupcause = AST_CAUSE_UNALLOCATED;
ast_hangup(chan);
p->exten[0] = '\0';
/* Since we send release complete here, we won't get one */
p->call = NULL;
}
return NULL;
exit:
res = sig_pri_play_tone(p, SIG_PRI_TONE_CONGESTION);
if (res < 0)
ast_log(LOG_WARNING, "Unable to play congestion tone on channel %d\n", p->channel);
ast_hangup(chan);
return NULL;
}
void pri_event_alarm(struct sig_pri_pri *pri, int index, int before_start_pri)
{
pri->dchanavail[index] &= ~(DCHAN_NOTINALARM | DCHAN_UP);
if (!before_start_pri)
pri_find_dchan(pri);
}
void pri_event_noalarm(struct sig_pri_pri *pri, int index, int before_start_pri)
{
pri->dchanavail[index] |= DCHAN_NOTINALARM;
if (!before_start_pri)
pri_restart(pri->dchans[index]);
}
/*!
* \internal
* \brief Convert libpri party id into asterisk party id.
* \since 1.6.3
*
* \param ast_id Asterisk party id structure to fill. Must already be set initialized.
* \param pri_id libpri party id structure containing source information.
* \param pri Span controlling structure.
*
* \note The filled in ast_id structure needs to be destroyed by
* ast_party_id_free() when it is no longer needed.
*
* \return Nothing
*/
static void sig_pri_party_id_convert(struct ast_party_id *ast_id,
const struct pri_party_id *pri_id, struct sig_pri_pri *pri)
{
char number[AST_MAX_EXTENSION];
if (pri_id->name.valid) {
ast_id->name = ast_strdup(pri_id->name.str);
}
if (pri_id->number.valid) {
apply_plan_to_number(number, sizeof(number), pri, pri_id->number.str,
pri_id->number.plan);
ast_id->number = ast_strdup(number);
ast_id->number_type = pri_id->number.plan;
}
if (pri_id->name.valid || pri_id->number.valid) {
ast_id->number_presentation = overall_ast_presentation(pri_id);
}
#if defined(HAVE_PRI_SUBADDR)
if (pri_id->subaddress.valid) {
sig_pri_set_subaddress(&ast_id->subaddress, &pri_id->subaddress);
}
#endif /* defined(HAVE_PRI_SUBADDR) */
}
/*!
* \internal
* \brief Convert libpri redirecting information into asterisk redirecting information.
* \since 1.6.3
*
* \param ast_redirecting Asterisk redirecting structure to fill.
* \param pri_redirecting libpri redirecting structure containing source information.
* \param ast_guide Asterisk redirecting structure to use as an initialization guide.
* \param pri Span controlling structure.
*
* \note The filled in ast_redirecting structure needs to be destroyed by
* ast_party_redirecting_free() when it is no longer needed.
*
* \return Nothing
*/
static void sig_pri_redirecting_convert(struct ast_party_redirecting *ast_redirecting,
const struct pri_party_redirecting *pri_redirecting,
const struct ast_party_redirecting *ast_guide,
struct sig_pri_pri *pri)
{
ast_party_redirecting_set_init(ast_redirecting, ast_guide);
sig_pri_party_id_convert(&ast_redirecting->from, &pri_redirecting->from, pri);
sig_pri_party_id_convert(&ast_redirecting->to, &pri_redirecting->to, pri);
ast_redirecting->count = pri_redirecting->count;
ast_redirecting->reason = pri_to_ast_reason(pri_redirecting->reason);
}
/*!
* \internal
* \brief Determine if the given extension matches one of the MSNs in the pattern list.
* \since 1.6.3
*
* \param msn_patterns Comma separated list of MSN patterns to match.
* \param exten Extension to match in the MSN list.
*
* \retval 1 if matches.
* \retval 0 if no match.
*/
static int sig_pri_msn_match(const char *msn_patterns, const char *exten)
{
char *pattern;
char *msn_list;
char *list_tail;
msn_list = strdupa(msn_patterns);
list_tail = NULL;
pattern = strtok_r(msn_list, ",", &list_tail);
while (pattern) {
pattern = ast_strip(pattern);
if (!ast_strlen_zero(pattern) && ast_extension_match(pattern, exten)) {
/* Extension matched the pattern. */
return 1;
}
pattern = strtok_r(NULL, ",", &list_tail);
}
/* Did not match any pattern in the list. */
return 0;
}
/*!
* \internal
* \brief Obtain the sig_pri owner channel lock if the owner exists.
* \since 1.6.3
*
* \param pri sig_pri PRI control structure.
* \param chanpos Channel position in the span.
*
* \note Assumes the pri->lock is already obtained.
* \note Assumes the sig_pri_lock_private(pri->pvts[chanpos]) is already obtained.
*
* \return Nothing
*/
static void sig_pri_lock_owner(struct sig_pri_pri *pri, int chanpos)
{
for (;;) {
if (!pri->pvts[chanpos]->owner) {
/* There is no owner lock to get. */
break;
}
if (!ast_channel_trylock(pri->pvts[chanpos]->owner)) {
/* We got the lock */
break;
}
/* We must unlock the PRI to avoid the possibility of a deadlock */
ast_mutex_unlock(&pri->lock);
PRI_DEADLOCK_AVOIDANCE(pri->pvts[chanpos]);
ast_mutex_lock(&pri->lock);
}
}
/*!
* \internal
* \brief Handle the call associated PRI subcommand events.
* \since 1.6.3
*
* \param pri sig_pri PRI control structure.
* \param chanpos Channel position in the span.
* \param event_id PRI event id
* \param channel PRI encoded span/channel
* \param subcmds Subcommands to process if any. (Could be NULL).
* \param call_rsp libpri opaque call structure to send any responses toward.
* Could be NULL either because it is not available or the call is for the
* dummy call reference. However, this should not be NULL in the cases that
* need to use the pointer to send a response message back.
*
* \note Assumes the pri->lock is already obtained.
* \note Assumes the sig_pri_lock_private(pri->pvts[chanpos]) is already obtained.
*
* \return Nothing
*/
static void sig_pri_handle_subcmds(struct sig_pri_pri *pri, int chanpos, int event_id,
int channel, const struct pri_subcommands *subcmds, q931_call *call_rsp)
{
int index;
struct ast_channel *owner;
struct ast_party_redirecting ast_redirecting;
if (!subcmds) {
return;
}
for (index = 0; index < subcmds->counter_subcmd; ++index) {
const struct pri_subcommand *subcmd = &subcmds->subcmd[index];
switch (subcmd->cmd) {
case PRI_SUBCMD_CONNECTED_LINE:
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
struct ast_party_connected_line ast_connected;
int caller_id_update;
/* Extract the connected line information */
ast_party_connected_line_init(&ast_connected);
sig_pri_party_id_convert(&ast_connected.id, &subcmd->u.connected_line.id,
pri);
caller_id_update = 0;
if (ast_connected.id.name) {
/* Save name for Caller-ID update */
ast_copy_string(pri->pvts[chanpos]->cid_name,
ast_connected.id.name, sizeof(pri->pvts[chanpos]->cid_name));
caller_id_update = 1;
}
if (ast_connected.id.number) {
/* Save number for Caller-ID update */
ast_copy_string(pri->pvts[chanpos]->cid_num, ast_connected.id.number,
sizeof(pri->pvts[chanpos]->cid_num));
pri->pvts[chanpos]->cid_ton = ast_connected.id.number_type;
caller_id_update = 1;
} else {
ast_connected.id.number = ast_strdup("");
}
ast_connected.source = AST_CONNECTED_LINE_UPDATE_SOURCE_ANSWER;
pri->pvts[chanpos]->cid_subaddr[0] = '\0';
#if defined(HAVE_PRI_SUBADDR)
if (ast_connected.id.subaddress.valid) {
ast_party_subaddress_set(&owner->cid.subaddress,
&ast_connected.id.subaddress);
if (ast_connected.id.subaddress.str) {
ast_copy_string(pri->pvts[chanpos]->cid_subaddr,
ast_connected.id.subaddress.str,
sizeof(pri->pvts[chanpos]->cid_subaddr));
}
}
#endif /* defined(HAVE_PRI_SUBADDR) */
if (caller_id_update) {
pri->pvts[chanpos]->callingpres =
ast_connected.id.number_presentation;
sig_pri_set_caller_id(pri->pvts[chanpos]);
ast_set_callerid(owner, S_OR(ast_connected.id.number, NULL),
S_OR(ast_connected.id.name, NULL),
S_OR(ast_connected.id.number, NULL));
}
/* Update the connected line information on the other channel */
if (event_id != PRI_EVENT_RING) {
/* This connected_line update was not from a SETUP message. */
ast_channel_queue_connected_line_update(owner, &ast_connected);
}
ast_party_connected_line_free(&ast_connected);
ast_channel_unlock(owner);
}
break;
case PRI_SUBCMD_REDIRECTING:
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
sig_pri_redirecting_convert(&ast_redirecting, &subcmd->u.redirecting,
&owner->redirecting, pri);
/*! \todo XXX Original called data can be put in a channel data store that is inherited. */
ast_channel_set_redirecting(owner, &ast_redirecting);
if (event_id != PRI_EVENT_RING) {
/* This redirection was not from a SETUP message. */
ast_channel_queue_redirecting_update(owner, &ast_redirecting);
}
ast_party_redirecting_free(&ast_redirecting);
ast_channel_unlock(owner);
}
break;
#if defined(HAVE_PRI_CALL_REROUTING)
case PRI_SUBCMD_REROUTING:
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
struct pri_party_redirecting pri_deflection;
if (!call_rsp) {
ast_channel_unlock(owner);
ast_log(LOG_WARNING,
"CallRerouting/CallDeflection to '%s' without call!\n",
subcmd->u.rerouting.deflection.to.number.str);
break;
}
pri_deflection = subcmd->u.rerouting.deflection;
ast_string_field_set(owner, call_forward, pri_deflection.to.number.str);
/* Adjust the deflecting to number based upon the subscription option. */
switch (subcmd->u.rerouting.subscription_option) {
case 0: /* noNotification */
case 1: /* notificationWithoutDivertedToNr */
/* Delete the number because the far end is not supposed to see it. */
pri_deflection.to.number.presentation =
PRI_PRES_RESTRICTED | PRI_PRES_USER_NUMBER_UNSCREENED;
pri_deflection.to.number.plan =
(PRI_TON_UNKNOWN << 4) | PRI_NPI_E163_E164;
pri_deflection.to.number.str[0] = '\0';
break;
case 2: /* notificationWithDivertedToNr */
break;
case 3: /* notApplicable */
default:
break;
}
sig_pri_redirecting_convert(&ast_redirecting, &pri_deflection,
&owner->redirecting, pri);
ast_channel_set_redirecting(owner, &ast_redirecting);
ast_party_redirecting_free(&ast_redirecting);
/*
* Send back positive ACK to CallRerouting/CallDeflection.
*
* Note: This call will be hungup by the dial application when
* it processes the call_forward string set above.
*/
pri_rerouting_rsp(pri->pri, call_rsp, subcmd->u.rerouting.invoke_id,
PRI_REROUTING_RSP_OK_CLEAR);
/* This line is BUSY to further attempts by this dialing attempt. */
ast_queue_control(owner, AST_CONTROL_BUSY);
ast_channel_unlock(owner);
}
break;
#endif /* defined(HAVE_PRI_CALL_REROUTING) */
default:
ast_debug(2,
"Unknown call subcommand(%d) in %s event on channel %d/%d on span %d.\n",
subcmd->cmd, pri_event2str(event_id), PRI_SPAN(channel),
PRI_CHANNEL(channel), pri->span);
break;
}
}
}
#if defined(HAVE_PRI_CALL_HOLD)
/*!
* \internal
* \brief Attempt to transfer the active call to the held call.
* \since 1.6.3
*
* \param pri sig_pri PRI control structure.
* \param active_call Active call to transfer.
* \param held_call Held call to transfer.
*
* \note Assumes the pri->lock is already obtained.
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int sig_pri_attempt_transfer(struct sig_pri_pri *pri, q931_call *active_call, q931_call *held_call)
{
int retval;
int active_chanpos;
int held_chanpos;
struct ast_channel *active_ast;
struct ast_channel *held_ast;
struct ast_channel *bridged;
active_chanpos = pri_find_pri_call(pri, active_call);
held_chanpos = pri_find_pri_call(pri, held_call);
if (active_chanpos < 0 || held_chanpos < 0) {
return -1;
}
sig_pri_lock_private(pri->pvts[active_chanpos]);
sig_pri_lock_private(pri->pvts[held_chanpos]);
sig_pri_lock_owner(pri, active_chanpos);
sig_pri_lock_owner(pri, held_chanpos);
active_ast = pri->pvts[active_chanpos]->owner;
held_ast = pri->pvts[held_chanpos]->owner;
if (!active_ast || !held_ast) {
if (active_ast) {
ast_channel_unlock(active_ast);
}
if (held_ast) {
ast_channel_unlock(held_ast);
}
sig_pri_unlock_private(pri->pvts[active_chanpos]);
sig_pri_unlock_private(pri->pvts[held_chanpos]);
return -1;
}
bridged = ast_bridged_channel(held_ast);
if (bridged) {
ast_queue_control(held_ast, AST_CONTROL_UNHOLD);
ast_verb(3, "TRANSFERRING %s to %s\n", held_ast->name, active_ast->name);
retval = ast_channel_masquerade(active_ast, bridged);
} else {
/*
* Could not transfer. Held channel is not bridged anymore.
* Held party probably got tired of waiting and hung up.
*/
retval = -1;
}
ast_channel_unlock(active_ast);
ast_channel_unlock(held_ast);
sig_pri_unlock_private(pri->pvts[active_chanpos]);
sig_pri_unlock_private(pri->pvts[held_chanpos]);
return retval;
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
/*!
* \internal
* \brief Handle the hold event from libpri.
* \since 1.6.3
*
* \param pri sig_pri PRI control structure.
* \param ev Hold event received.
*
* \note Assumes the pri->lock is already obtained.
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int sig_pri_handle_hold(struct sig_pri_pri *pri, pri_event *ev)
{
int retval;
int chanpos_old;
int chanpos_new;
struct ast_channel *bridged;
struct ast_channel *owner;
chanpos_old = pri_find_principle(pri, ev->hold.channel, ev->hold.call);
if (chanpos_old < 0) {
ast_log(LOG_WARNING,
"Received HOLD on unconfigured channel %d/%d span %d\n",
PRI_SPAN(ev->hold.channel), PRI_CHANNEL(ev->hold.channel), pri->span);
return -1;
}
if (pri->pvts[chanpos_old]->no_b_channel) {
/* Call is already on hold or is call waiting call. */
return -1;
}
sig_pri_lock_private(pri->pvts[chanpos_old]);
sig_pri_lock_owner(pri, chanpos_old);
owner = pri->pvts[chanpos_old]->owner;
if (!owner) {
retval = -1;
goto done_with_private;
}
bridged = ast_bridged_channel(owner);
if (!bridged) {
/* Cannot hold a call that is not bridged. */
retval = -1;
goto done_with_owner;
}
chanpos_new = pri_find_empty_nobch(pri);
if (chanpos_new < 0) {
/* No hold channel available. */
retval = -1;
goto done_with_owner;
}
sig_pri_handle_subcmds(pri, chanpos_old, ev->e, ev->hold.channel, ev->hold.subcmds,
ev->hold.call);
chanpos_new = pri_fixup_principle(pri, chanpos_new, ev->hold.call);
if (chanpos_new < 0) {
/* Should never happen. */
retval = -1;
} else {
struct ast_frame f = { AST_FRAME_CONTROL, };
f.subclass.integer = AST_CONTROL_HOLD;
ast_queue_frame(owner, &f);
retval = 0;
}
done_with_owner:;
ast_channel_unlock(owner);
done_with_private:;
sig_pri_unlock_private(pri->pvts[chanpos_old]);
return retval;
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
/*!
* \internal
* \brief Handle the retrieve event from libpri.
* \since 1.6.3
*
* \param pri sig_pri PRI control structure.
* \param ev Retrieve event received.
*
* \note Assumes the pri->lock is already obtained.
*
* \return Nothing
*/
static void sig_pri_handle_retrieve(struct sig_pri_pri *pri, pri_event *ev)
{
int chanpos;
if (!(ev->retrieve.channel & PRI_HELD_CALL)
|| pri_find_principle(pri, ev->retrieve.channel, ev->retrieve.call) < 0) {
/* The call is not currently held. */
pri_retrieve_rej(pri->pri, ev->retrieve.call,
PRI_CAUSE_RESOURCE_UNAVAIL_UNSPECIFIED);
return;
}
if (PRI_CHANNEL(ev->retrieve.channel) == 0xFF) {
chanpos = pri_find_empty_chan(pri, 1);
} else {
chanpos = pri_find_principle(pri,
ev->retrieve.channel & ~PRI_HELD_CALL, ev->retrieve.call);
if (ev->retrieve.flexible
&& (chanpos < 0 || pri->pvts[chanpos]->owner)) {
/*
* Channel selection is flexible and the requested channel
* is bad or already in use. Pick another channel.
*/
chanpos = pri_find_empty_chan(pri, 1);
}
}
if (chanpos < 0) {
pri_retrieve_rej(pri->pri, ev->retrieve.call,
ev->retrieve.flexible ? PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION
: PRI_CAUSE_REQUESTED_CHAN_UNAVAIL);
return;
}
chanpos = pri_fixup_principle(pri, chanpos, ev->retrieve.call);
if (chanpos < 0) {
/* Channel is already in use. */
pri_retrieve_rej(pri->pri, ev->retrieve.call,
PRI_CAUSE_REQUESTED_CHAN_UNAVAIL);
return;
}
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, ev->e, ev->retrieve.channel,
ev->retrieve.subcmds, ev->retrieve.call);
{
struct ast_frame f = { AST_FRAME_CONTROL, };
f.subclass.integer = AST_CONTROL_UNHOLD;
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
sig_pri_unlock_private(pri->pvts[chanpos]);
pri_retrieve_ack(pri->pri, ev->retrieve.call,
PVT_TO_CHANNEL(pri->pvts[chanpos]));
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
static void *pri_dchannel(void *vpri)
{
struct sig_pri_pri *pri = vpri;
pri_event *e;
struct pollfd fds[NUM_DCHANS];
int res;
int chanpos = 0;
int x;
struct ast_channel *c;
struct timeval tv, lowest, *next;
int doidling=0;
char *cc;
time_t t;
int i, which=-1;
int numdchans;
pthread_t threadid;
char ani2str[6];
char plancallingnum[AST_MAX_EXTENSION];
char plancallingani[AST_MAX_EXTENSION];
char calledtonstr[10];
struct timeval lastidle = { 0, 0 };
pthread_t p;
struct ast_channel *idle;
char idlen[80];
int nextidle = -1;
int haveidles;
int activeidles;
gettimeofday(&lastidle, NULL);
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
if (!ast_strlen_zero(pri->idledial) && !ast_strlen_zero(pri->idleext)) {
/* Need to do idle dialing, check to be sure though */
cc = strchr(pri->idleext, '@');
if (cc) {
*cc = '\0';
cc++;
ast_copy_string(pri->idlecontext, cc, sizeof(pri->idlecontext));
#if 0
/* Extensions may not be loaded yet */
if (!ast_exists_extension(NULL, pri->idlecontext, pri->idleext, 1, NULL))
ast_log(LOG_WARNING, "Extension '%s @ %s' does not exist\n", pri->idleext, pri->idlecontext);
else
#endif
doidling = 1;
} else
ast_log(LOG_WARNING, "Idle dial string '%s' lacks '@context'\n", pri->idleext);
}
for (;;) {
for (i = 0; i < NUM_DCHANS; i++) {
if (!pri->dchans[i])
break;
fds[i].fd = pri->fds[i];
fds[i].events = POLLIN | POLLPRI;
fds[i].revents = 0;
}
numdchans = i;
time(&t);
ast_mutex_lock(&pri->lock);
if (pri->switchtype != PRI_SWITCH_GR303_TMC && (pri->sig != SIG_BRI_PTMP) && (pri->resetinterval > 0)) {
if (pri->resetting && pri_is_up(pri)) {
if (pri->resetpos < 0)
pri_check_restart(pri);
} else {
if (!pri->resetting && (t - pri->lastreset) >= pri->resetinterval) {
pri->resetting = 1;
pri->resetpos = -1;
}
}
}
/* Look for any idle channels if appropriate */
if (doidling && pri_is_up(pri)) {
nextidle = -1;
haveidles = 0;
activeidles = 0;
for (x = pri->numchans; x >= 0; x--) {
if (pri->pvts[x]
&& !pri->pvts[x]->owner
&& !pri->pvts[x]->call
&& !pri->pvts[x]->no_b_channel) {
if (haveidles < pri->minunused) {
haveidles++;
} else if (!pri->pvts[x]->resetting) {
nextidle = x;
break;
}
} else if (pri->pvts[x] && pri->pvts[x]->owner && pri->pvts[x]->isidlecall)
activeidles++;
}
if (nextidle > -1) {
if (ast_tvdiff_ms(ast_tvnow(), lastidle) > 1000) {
/* Don't create a new idle call more than once per second */
snprintf(idlen, sizeof(idlen), "%d/%s", pri->pvts[nextidle]->channel, pri->idledial);
idle = sig_pri_request(pri->pvts[nextidle], AST_FORMAT_ULAW, NULL);
if (idle) {
pri->pvts[nextidle]->isidlecall = 1;
if (ast_pthread_create_background(&p, NULL, do_idle_thread, idle)) {
ast_log(LOG_WARNING, "Unable to start new thread for idle channel '%s'\n", idle->name);
ast_hangup(idle);
}
} else
ast_log(LOG_WARNING, "Unable to request channel 'DAHDI/%s' for idle call\n", idlen);
gettimeofday(&lastidle, NULL);
}
} else if ((haveidles < pri->minunused) &&
(activeidles > pri->minidle)) {
/* Mark something for hangup if there is something
that can be hungup */
for (x = pri->numchans; x >= 0; x--) {
/* find a candidate channel */
if (pri->pvts[x] && pri->pvts[x]->owner && pri->pvts[x]->isidlecall) {
pri->pvts[x]->owner->_softhangup |= AST_SOFTHANGUP_DEV;
haveidles++;
/* Stop if we have enough idle channels or
can't spare any more active idle ones */
if ((haveidles >= pri->minunused) ||
(activeidles <= pri->minidle))
break;
}
}
}
}
/* Start with reasonable max */
lowest = ast_tv(60, 0);
for (i = 0; i < NUM_DCHANS; i++) {
/* Find lowest available d-channel */
if (!pri->dchans[i])
break;
if ((next = pri_schedule_next(pri->dchans[i]))) {
/* We need relative time here */
tv = ast_tvsub(*next, ast_tvnow());
if (tv.tv_sec < 0) {
tv = ast_tv(0,0);
}
if (doidling || pri->resetting) {
if (tv.tv_sec > 1) {
tv = ast_tv(1, 0);
}
} else {
if (tv.tv_sec > 60) {
tv = ast_tv(60, 0);
}
}
} else if (doidling || pri->resetting) {
/* Make sure we stop at least once per second if we're
monitoring idle channels */
tv = ast_tv(1,0);
} else {
/* Don't poll for more than 60 seconds */
tv = ast_tv(60, 0);
}
if (!i || ast_tvcmp(tv, lowest) < 0) {
lowest = tv;
}
}
ast_mutex_unlock(&pri->lock);
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
pthread_testcancel();
e = NULL;
res = poll(fds, numdchans, lowest.tv_sec * 1000 + lowest.tv_usec / 1000);
pthread_testcancel();
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
ast_mutex_lock(&pri->lock);
if (!res) {
for (which = 0; which < NUM_DCHANS; which++) {
if (!pri->dchans[which])
break;
/* Just a timeout, run the scheduler */
e = pri_schedule_run(pri->dchans[which]);
if (e)
break;
}
} else if (res > -1) {
for (which = 0; which < NUM_DCHANS; which++) {
if (!pri->dchans[which])
break;
if (fds[which].revents & POLLPRI) {
sig_pri_handle_dchan_exception(pri, which);
} else if (fds[which].revents & POLLIN) {
e = pri_check_event(pri->dchans[which]);
}
if (e)
break;
}
} else if (errno != EINTR)
ast_log(LOG_WARNING, "pri_event returned error %d (%s)\n", errno, strerror(errno));
if (e) {
if (pri->debug)
pri_dump_event(pri->dchans[which], e);
if (e->e != PRI_EVENT_DCHAN_DOWN) {
if (!(pri->dchanavail[which] & DCHAN_UP)) {
ast_verb(2, "%s D-Channel on span %d up\n", pri_order(which), pri->span);
}
pri->dchanavail[which] |= DCHAN_UP;
} else {
if (pri->dchanavail[which] & DCHAN_UP) {
ast_verb(2, "%s D-Channel on span %d down\n", pri_order(which), pri->span);
}
pri->dchanavail[which] &= ~DCHAN_UP;
}
if ((e->e != PRI_EVENT_DCHAN_UP) && (e->e != PRI_EVENT_DCHAN_DOWN) && (pri->pri != pri->dchans[which]))
/* Must be an NFAS group that has the secondary dchan active */
pri->pri = pri->dchans[which];
switch (e->e) {
case PRI_EVENT_DCHAN_UP:
if (!pri->pri) pri_find_dchan(pri);
/* Note presense of D-channel */
time(&pri->lastreset);
/* Restart in 5 seconds */
if (pri->resetinterval > -1) {
pri->lastreset -= pri->resetinterval;
pri->lastreset += 5;
}
pri->resetting = 0;
/* Take the channels from inalarm condition */
for (i = 0; i < pri->numchans; i++)
if (pri->pvts[i]) {
pri->pvts[i]->inalarm = 0;
}
break;
case PRI_EVENT_DCHAN_DOWN:
pri_find_dchan(pri);
if (!pri_is_up(pri)) {
pri->resetting = 0;
if (pri->sig == SIG_BRI_PTMP) {
/* For PTMP connections with non persistent layer 2 we want
* to *not* declare inalarm unless there actually is an alarm */
break;
}
/* Hangup active channels and put them in alarm mode */
for (i = 0; i < pri->numchans; i++) {
struct sig_pri_chan *p = pri->pvts[i];
if (p) {
if (!p->pri || !p->pri->pri || pri_get_timer(p->pri->pri, PRI_TIMER_T309) < 0) {
/* T309 is not enabled : hangup calls when alarm occurs */
if (p->call) {
if (p->pri && p->pri->pri) {
pri_hangup(p->pri->pri, p->call, -1);
pri_destroycall(p->pri->pri, p->call);
p->call = NULL;
} else
ast_log(LOG_WARNING, "The PRI Call have not been destroyed\n");
}
if (p->owner)
ast_softhangup_nolock(p->owner, AST_SOFTHANGUP_DEV);
}
p->inalarm = 1;
}
}
}
break;
case PRI_EVENT_RESTART:
if (e->restart.channel > -1) {
chanpos = pri_find_principle(pri, e->restart.channel, NULL);
if (chanpos < 0)
ast_log(LOG_WARNING, "Restart requested on odd/unavailable channel number %d/%d on span %d\n",
PRI_SPAN(e->restart.channel), PRI_CHANNEL(e->restart.channel), pri->span);
else {
#ifdef HAVE_PRI_SERVICE_MESSAGES
char db_chan_name[20], db_answer[5], state;
int why, skipit = 0;
snprintf(db_chan_name, sizeof(db_chan_name), "%s/%d:%d", dahdi_db, pri->span, pri->pvts[chanpos]->channel);
if (!ast_db_get(db_chan_name, SRVST_DBKEY, db_answer, sizeof(db_answer))) {
sscanf(db_answer, "%1c:%30d", &state, &why);
if (why) {
ast_log(LOG_NOTICE, "span '%d' channel '%d' out-of-service (reason: %s), ignoring RESTART\n", pri->span,
PRI_CHANNEL(e->restart.channel), (why & SRVST_FAREND) ? (why & SRVST_NEAREND) ? "both ends" : "far end" : "near end");
skipit = 1;
} else {
ast_db_del(db_chan_name, SRVST_DBKEY);
}
}
#endif
sig_pri_lock_private(pri->pvts[chanpos]);
#ifdef HAVE_PRI_SERVICE_MESSAGES
if (!skipit) {
#endif
ast_verb(3, "B-channel %d/%d restarted on span %d\n",
PRI_SPAN(e->restart.channel), PRI_CHANNEL(e->restart.channel), pri->span);
if (pri->pvts[chanpos]->call) {
pri_destroycall(pri->pri, pri->pvts[chanpos]->call);
pri->pvts[chanpos]->call = NULL;
}
#ifdef HAVE_PRI_SERVICE_MESSAGES
}
#endif
/* Force soft hangup if appropriate */
if (pri->pvts[chanpos]->owner)
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
sig_pri_unlock_private(pri->pvts[chanpos]);
}
} else {
ast_verb(3, "Restart requested on entire span %d\n", pri->span);
for (x = 0; x < pri->numchans; x++)
if (pri->pvts[x]) {
sig_pri_lock_private(pri->pvts[x]);
if (pri->pvts[x]->call) {
pri_destroycall(pri->pri, pri->pvts[x]->call);
pri->pvts[x]->call = NULL;
}
if (pri->pvts[x]->owner)
ast_softhangup_nolock(pri->pvts[x]->owner, AST_SOFTHANGUP_DEV);
sig_pri_unlock_private(pri->pvts[x]);
}
}
break;
case PRI_EVENT_KEYPAD_DIGIT:
chanpos = pri_find_principle(pri, e->digit.channel, e->digit.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "KEYPAD_DIGITs received on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->digit.channel), PRI_CHANNEL(e->digit.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->digit.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->digit.channel,
e->digit.subcmds, e->digit.call);
/* queue DTMF frame if the PBX for this call was already started (we're forwarding KEYPAD_DIGITs further on */
if ((pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING)
&& pri->pvts[chanpos]->call == e->digit.call
&& pri->pvts[chanpos]->owner) {
/* how to do that */
int digitlen = strlen(e->digit.digits);
int i;
for (i = 0; i < digitlen; i++) {
struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = e->digit.digits[i], };
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
}
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
case PRI_EVENT_INFO_RECEIVED:
chanpos = pri_find_principle(pri, e->ring.channel, e->ring.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "INFO received on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->ring.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->ring.channel,
e->ring.subcmds, e->ring.call);
/* queue DTMF frame if the PBX for this call was already started (we're forwarding INFORMATION further on */
if ((pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING)
&& pri->pvts[chanpos]->call == e->ring.call
&& pri->pvts[chanpos]->owner) {
/* how to do that */
int digitlen = strlen(e->ring.callednum);
int i;
for (i = 0; i < digitlen; i++) {
struct ast_frame f = { AST_FRAME_DTMF, .subclass.integer = e->ring.callednum[i], };
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
}
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
#ifdef HAVE_PRI_SERVICE_MESSAGES
case PRI_EVENT_SERVICE:
chanpos = pri_find_principle(pri, e->service.channel, NULL);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Received service change status %d on unconfigured channel %d/%d span %d\n",
e->service_ack.changestatus, PRI_SPAN(e->service_ack.channel), PRI_CHANNEL(e->service_ack.channel), pri->span);
} else {
char db_chan_name[20], db_answer[5], state;
int ch, why = -1;
ch = pri->pvts[chanpos]->channel;
snprintf(db_chan_name, sizeof(db_chan_name), "%s/%d:%d", dahdi_db, pri->span, ch);
if (!ast_db_get(db_chan_name, SRVST_DBKEY, db_answer, sizeof(db_answer))) {
sscanf(db_answer, "%1c:%30d", &state, &why);
ast_db_del(db_chan_name, SRVST_DBKEY);
}
switch (e->service.changestatus) {
case 0: /* in-service */
if (why > -1) {
if (why & SRVST_NEAREND) {
snprintf(db_answer, sizeof(db_answer), "%s:%d", SRVST_TYPE_OOS, SRVST_NEAREND);
ast_db_put(db_chan_name, SRVST_DBKEY, db_answer);
ast_debug(2, "channel '%d' service state { near: out-of-service, far: in-service }\n", ch);
}
}
break;
case 2: /* out-of-service */
if (why == -1) {
why = SRVST_FAREND;
} else {
why |= SRVST_FAREND;
}
snprintf(db_answer, sizeof(db_answer), "%s:%d", SRVST_TYPE_OOS, why);
ast_db_put(db_chan_name, SRVST_DBKEY, db_answer);
break;
default:
ast_log(LOG_ERROR, "Huh? changestatus is: %d\n", e->service.changestatus);
}
ast_log(LOG_NOTICE, "Channel %d/%d span %d (logical: %d) received a change of service message, status '%d'\n",
PRI_SPAN(e->service.channel), PRI_CHANNEL(e->service.channel), pri->span, ch, e->service.changestatus);
}
break;
case PRI_EVENT_SERVICE_ACK:
chanpos = pri_find_principle(pri, e->service_ack.channel, NULL);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Received service acknowledge change status '%d' on unconfigured channel %d/%d span %d\n",
e->service_ack.changestatus, PRI_SPAN(e->service_ack.channel), PRI_CHANNEL(e->service_ack.channel), pri->span);
} else {
ast_debug(2, "Channel %d/%d span %d received a change os service acknowledgement message, status '%d'\n",
PRI_SPAN(e->service_ack.channel), PRI_CHANNEL(e->service_ack.channel), pri->span, e->service_ack.changestatus);
}
break;
#endif
case PRI_EVENT_RING:
if (!ast_strlen_zero(pri->msn_list)
&& !sig_pri_msn_match(pri->msn_list, e->ring.callednum)) {
/* The call is not for us so ignore it. */
ast_verb(3,
"Ignoring call to '%s' on span %d. Its not in the MSN list: %s\n",
e->ring.callednum, pri->span, pri->msn_list);
pri_destroycall(pri->pri, e->ring.call);
break;
}
if (e->ring.channel == -1)
chanpos = pri_find_empty_chan(pri, 1);
else
chanpos = pri_find_principle(pri, e->ring.channel, e->ring.call);
/* if no channel specified find one empty */
if (chanpos < 0) {
ast_log(LOG_WARNING, "Ring requested on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span);
} else {
sig_pri_lock_private(pri->pvts[chanpos]);
if (pri->pvts[chanpos]->owner) {
if (pri->pvts[chanpos]->call == e->ring.call) {
ast_log(LOG_WARNING, "Duplicate setup requested on channel %d/%d already in use on span %d\n",
PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span);
sig_pri_unlock_private(pri->pvts[chanpos]);
break;
} else {
/* This is where we handle initial glare */
ast_debug(1, "Ring requested on channel %d/%d already in use or previously requested on span %d. Attempting to renegotiating channel.\n",
PRI_SPAN(e->ring.channel), PRI_CHANNEL(e->ring.channel), pri->span);
sig_pri_unlock_private(pri->pvts[chanpos]);
chanpos = -1;
}
}
if (chanpos > -1)
sig_pri_unlock_private(pri->pvts[chanpos]);
}
if ((chanpos < 0) && (e->ring.flexible))
chanpos = pri_find_empty_chan(pri, 1);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
pri->pvts[chanpos]->call = e->ring.call;
/* Use plancallingnum as a scratch buffer since it is initialized next. */
apply_plan_to_number(plancallingnum, sizeof(plancallingnum), pri,
e->ring.redirectingnum, e->ring.callingplanrdnis);
sig_pri_set_rdnis(pri->pvts[chanpos], plancallingnum);
/* Setup caller-id info */
apply_plan_to_number(plancallingnum, sizeof(plancallingnum), pri, e->ring.callingnum, e->ring.callingplan);
pri->pvts[chanpos]->cid_ani2 = 0;
if (pri->pvts[chanpos]->use_callerid) {
ast_shrink_phone_number(plancallingnum);
ast_copy_string(pri->pvts[chanpos]->cid_num, plancallingnum, sizeof(pri->pvts[chanpos]->cid_num));
#ifdef PRI_ANI
if (!ast_strlen_zero(e->ring.callingani)) {
apply_plan_to_number(plancallingani, sizeof(plancallingani), pri, e->ring.callingani, e->ring.callingplanani);
ast_shrink_phone_number(plancallingani);
ast_copy_string(pri->pvts[chanpos]->cid_ani, plancallingani, sizeof(pri->pvts[chanpos]->cid_ani));
} else {
pri->pvts[chanpos]->cid_ani[0] = '\0';
}
#endif
pri->pvts[chanpos]->cid_subaddr[0] = '\0';
#if defined(HAVE_PRI_SUBADDR)
if (e->ring.calling.subaddress.valid) {
struct ast_party_subaddress calling_subaddress;
ast_party_subaddress_init(&calling_subaddress);
sig_pri_set_subaddress(&calling_subaddress,
&e->ring.calling.subaddress);
if (calling_subaddress.str) {
ast_copy_string(pri->pvts[chanpos]->cid_subaddr,
calling_subaddress.str,
sizeof(pri->pvts[chanpos]->cid_subaddr));
}
ast_party_subaddress_free(&calling_subaddress);
}
#endif /* defined(HAVE_PRI_SUBADDR) */
ast_copy_string(pri->pvts[chanpos]->cid_name, e->ring.callingname, sizeof(pri->pvts[chanpos]->cid_name));
pri->pvts[chanpos]->cid_ton = e->ring.callingplan; /* this is the callingplan (TON/NPI), e->ring.callingplan>>4 would be the TON */
pri->pvts[chanpos]->callingpres = e->ring.callingpres;
if (e->ring.ani2 >= 0) {
pri->pvts[chanpos]->cid_ani2 = e->ring.ani2;
}
} else {
pri->pvts[chanpos]->cid_num[0] = '\0';
pri->pvts[chanpos]->cid_subaddr[0] = '\0';
pri->pvts[chanpos]->cid_ani[0] = '\0';
pri->pvts[chanpos]->cid_name[0] = '\0';
pri->pvts[chanpos]->cid_ton = 0;
pri->pvts[chanpos]->callingpres = 0;
}
sig_pri_set_caller_id(pri->pvts[chanpos]);
/* Set DNID on all incoming calls -- even immediate */
sig_pri_set_dnid(pri->pvts[chanpos], e->ring.callednum);
/* If immediate=yes go to s|1 */
if (pri->pvts[chanpos]->immediate) {
ast_verb(3, "Going to extension s|1 because of immediate=yes\n");
pri->pvts[chanpos]->exten[0] = 's';
pri->pvts[chanpos]->exten[1] = '\0';
}
/* Get called number */
else if (!ast_strlen_zero(e->ring.callednum)) {
ast_copy_string(pri->pvts[chanpos]->exten, e->ring.callednum, sizeof(pri->pvts[chanpos]->exten));
} else if (pri->overlapdial)
pri->pvts[chanpos]->exten[0] = '\0';
else {
/* Some PRI circuits are set up to send _no_ digits. Handle them as 's'. */
pri->pvts[chanpos]->exten[0] = 's';
pri->pvts[chanpos]->exten[1] = '\0';
}
/* No number yet, but received "sending complete"? */
if (e->ring.complete && (ast_strlen_zero(e->ring.callednum))) {
ast_verb(3, "Going to extension s|1 because of Complete received\n");
pri->pvts[chanpos]->exten[0] = 's';
pri->pvts[chanpos]->exten[1] = '\0';
}
/* Make sure extension exists (or in overlap dial mode, can exist) */
if (((pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING) && ast_canmatch_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) ||
ast_exists_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) {
/* Setup law */
if (e->ring.complete || !(pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING)) {
/* Just announce proceeding */
pri->pvts[chanpos]->proceeding = 1;
pri_proceeding(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 0);
} else {
if (pri->switchtype != PRI_SWITCH_GR303_TMC)
pri_need_more_info(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 1);
else
pri_answer(pri->pri, e->ring.call, PVT_TO_CHANNEL(pri->pvts[chanpos]), 1);
}
/* Start PBX */
if (!e->ring.complete
&& (pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING)
&& ast_matchmore_extension(NULL, pri->pvts[chanpos]->context, pri->pvts[chanpos]->exten, 1, pri->pvts[chanpos]->cid_num)) {
/*
* Release the PRI lock while we create the channel
* so other threads can send D channel messages.
*/
ast_mutex_unlock(&pri->lock);
c = sig_pri_new_ast_channel(pri->pvts[chanpos],
AST_STATE_RESERVED, 0,
(e->ring.layer1 == PRI_LAYER_1_ALAW)
? SIG_PRI_ALAW : SIG_PRI_ULAW,
e->ring.ctype, pri->pvts[chanpos]->exten, NULL);
ast_mutex_lock(&pri->lock);
if (c) {
#if defined(HAVE_PRI_SUBADDR)
if (e->ring.calling.subaddress.valid) {
/* Set Calling Subaddress */
sig_pri_lock_owner(pri, chanpos);
sig_pri_set_subaddress(
&pri->pvts[chanpos]->owner->cid.subaddress,
&e->ring.calling.subaddress);
if (!e->ring.calling.subaddress.type
&& !ast_strlen_zero(
(char *) e->ring.calling.subaddress.data)) {
/* NSAP */
pbx_builtin_setvar_helper(c, "CALLINGSUBADDR",
(char *) e->ring.calling.subaddress.data);
}
ast_channel_unlock(c);
}
if (e->ring.called_subaddress.valid) {
/* Set Called Subaddress */
sig_pri_lock_owner(pri, chanpos);
sig_pri_set_subaddress(
&pri->pvts[chanpos]->owner->cid.dialed_subaddress,
&e->ring.called_subaddress);
if (!e->ring.called_subaddress.type
&& !ast_strlen_zero(
(char *) e->ring.called_subaddress.data)) {
/* NSAP */
pbx_builtin_setvar_helper(c, "CALLEDSUBADDR",
(char *) e->ring.called_subaddress.data);
}
ast_channel_unlock(c);
}
#else
if (!ast_strlen_zero(e->ring.callingsubaddr)) {
pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr);
}
#endif /* !defined(HAVE_PRI_SUBADDR) */
if (e->ring.ani2 >= 0) {
snprintf(ani2str, sizeof(ani2str), "%d", e->ring.ani2);
pbx_builtin_setvar_helper(c, "ANI2", ani2str);
}
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->ring.useruserinfo)) {
pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo);
}
#endif
snprintf(calledtonstr, sizeof(calledtonstr), "%d", e->ring.calledplan);
pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr);
if (e->ring.redirectingreason >= 0) {
/* This is now just a status variable. Use REDIRECTING() dialplan function. */
pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason));
}
#if defined(HAVE_PRI_REVERSE_CHARGE)
pri->pvts[chanpos]->reverse_charging_indication = e->ring.reversecharge;
#endif
#if defined(HAVE_PRI_SETUP_KEYPAD)
ast_copy_string(pri->pvts[chanpos]->keypad_digits,
e->ring.keypad_digits,
sizeof(pri->pvts[chanpos]->keypad_digits));
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
sig_pri_handle_subcmds(pri, chanpos, e->e, e->ring.channel,
e->ring.subcmds, e->ring.call);
}
if (c && !ast_pthread_create_detached(&threadid, NULL, pri_ss_thread, pri->pvts[chanpos])) {
ast_verb(3, "Accepting overlap call from '%s' to '%s' on channel %d/%d, span %d\n",
plancallingnum, S_OR(pri->pvts[chanpos]->exten, "<unspecified>"),
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
} else {
ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
if (c)
ast_hangup(c);
else {
pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION);
pri->pvts[chanpos]->call = NULL;
}
}
} else {
/*
* Release the PRI lock while we create the channel
* so other threads can send D channel messages.
*/
ast_mutex_unlock(&pri->lock);
c = sig_pri_new_ast_channel(pri->pvts[chanpos],
AST_STATE_RING, 0,
(e->ring.layer1 == PRI_LAYER_1_ALAW)
? SIG_PRI_ALAW : SIG_PRI_ULAW, e->ring.ctype,
pri->pvts[chanpos]->exten, NULL);
ast_mutex_lock(&pri->lock);
if (c) {
/*
* It is reasonably safe to set the following
* channel variables while the PRI and DAHDI private
* structures are locked. The PBX has not been
* started yet and it is unlikely that any other task
* will do anything with the channel we have just
* created.
*/
#if defined(HAVE_PRI_SUBADDR)
if (e->ring.calling.subaddress.valid) {
/* Set Calling Subaddress */
sig_pri_lock_owner(pri, chanpos);
sig_pri_set_subaddress(
&pri->pvts[chanpos]->owner->cid.subaddress,
&e->ring.calling.subaddress);
if (!e->ring.calling.subaddress.type
&& !ast_strlen_zero(
(char *) e->ring.calling.subaddress.data)) {
/* NSAP */
pbx_builtin_setvar_helper(c, "CALLINGSUBADDR",
(char *) e->ring.calling.subaddress.data);
}
ast_channel_unlock(c);
}
if (e->ring.called_subaddress.valid) {
/* Set Called Subaddress */
sig_pri_lock_owner(pri, chanpos);
sig_pri_set_subaddress(
&pri->pvts[chanpos]->owner->cid.dialed_subaddress,
&e->ring.called_subaddress);
if (!e->ring.called_subaddress.type
&& !ast_strlen_zero(
(char *) e->ring.called_subaddress.data)) {
/* NSAP */
pbx_builtin_setvar_helper(c, "CALLEDSUBADDR",
(char *) e->ring.called_subaddress.data);
}
ast_channel_unlock(c);
}
#else
if (!ast_strlen_zero(e->ring.callingsubaddr)) {
pbx_builtin_setvar_helper(c, "CALLINGSUBADDR", e->ring.callingsubaddr);
}
#endif /* !defined(HAVE_PRI_SUBADDR) */
if (e->ring.ani2 >= 0) {
snprintf(ani2str, sizeof(ani2str), "%d", e->ring.ani2);
pbx_builtin_setvar_helper(c, "ANI2", ani2str);
}
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->ring.useruserinfo)) {
pbx_builtin_setvar_helper(c, "USERUSERINFO", e->ring.useruserinfo);
}
#endif
if (e->ring.redirectingreason >= 0) {
/* This is now just a status variable. Use REDIRECTING() dialplan function. */
pbx_builtin_setvar_helper(c, "PRIREDIRECTREASON", redirectingreason2str(e->ring.redirectingreason));
}
#if defined(HAVE_PRI_REVERSE_CHARGE)
pri->pvts[chanpos]->reverse_charging_indication = e->ring.reversecharge;
#endif
#if defined(HAVE_PRI_SETUP_KEYPAD)
ast_copy_string(pri->pvts[chanpos]->keypad_digits,
e->ring.keypad_digits,
sizeof(pri->pvts[chanpos]->keypad_digits));
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
snprintf(calledtonstr, sizeof(calledtonstr), "%d", e->ring.calledplan);
pbx_builtin_setvar_helper(c, "CALLEDTON", calledtonstr);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->ring.channel,
e->ring.subcmds, e->ring.call);
}
if (c && !ast_pbx_start(c)) {
ast_verb(3, "Accepting call from '%s' to '%s' on channel %d/%d, span %d\n",
plancallingnum, pri->pvts[chanpos]->exten,
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
sig_pri_set_echocanceller(pri->pvts[chanpos], 1);
} else {
ast_log(LOG_WARNING, "Unable to start PBX on channel %d/%d, span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span);
if (c) {
ast_hangup(c);
} else {
pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_SWITCH_CONGESTION);
pri->pvts[chanpos]->call = NULL;
}
}
}
} else {
ast_verb(3, "Extension '%s' in context '%s' from '%s' does not exist. Rejecting call on channel %d/%d, span %d\n",
pri->pvts[chanpos]->exten, pri->pvts[chanpos]->context, pri->pvts[chanpos]->cid_num, pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_UNALLOCATED);
pri->pvts[chanpos]->call = NULL;
pri->pvts[chanpos]->exten[0] = '\0';
}
sig_pri_unlock_private(pri->pvts[chanpos]);
} else {
if (e->ring.flexible)
pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION);
else
pri_hangup(pri->pri, e->ring.call, PRI_CAUSE_REQUESTED_CHAN_UNAVAIL);
}
break;
case PRI_EVENT_RINGING:
chanpos = pri_find_principle(pri, e->ringing.channel, e->ringing.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Ringing requested on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->ringing.channel), PRI_CHANNEL(e->ringing.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->ringing.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Ringing requested on channel %d/%d not in use on span %d\n",
PRI_SPAN(e->ringing.channel), PRI_CHANNEL(e->ringing.channel), pri->span);
} else {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->ringing.channel,
e->ringing.subcmds, e->ringing.call);
sig_pri_set_echocanceller(pri->pvts[chanpos], 1);
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_RINGING, pri);
pri->pvts[chanpos]->alerting = 1;
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->ringing.useruserinfo)) {
struct ast_channel *owner;
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
pbx_builtin_setvar_helper(owner, "USERUSERINFO",
e->ringing.useruserinfo);
ast_channel_unlock(owner);
}
}
#endif
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
case PRI_EVENT_PROGRESS:
/* Get chan value if e->e is not PRI_EVNT_RINGING */
chanpos = pri_find_principle(pri, e->proceeding.channel, e->proceeding.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->proceeding.channel,
e->proceeding.subcmds, e->proceeding.call);
if ((!pri->pvts[chanpos]->progress)
#ifdef PRI_PROGRESS_MASK
|| (e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE)
#else
|| (e->proceeding.progress == 8)
#endif
) {
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_PROGRESS, };
if (e->proceeding.cause > -1) {
ast_verb(3, "PROGRESS with cause code %d received\n", e->proceeding.cause);
/* Work around broken, out of spec USER_BUSY cause in a progress message */
if (e->proceeding.cause == AST_CAUSE_USER_BUSY) {
if (pri->pvts[chanpos]->owner) {
ast_verb(3, "PROGRESS with 'user busy' received, signaling AST_CONTROL_BUSY instead of AST_CONTROL_PROGRESS\n");
pri->pvts[chanpos]->owner->hangupcause = e->proceeding.cause;
f.subclass.integer = AST_CONTROL_BUSY;
}
}
}
ast_debug(1, "Queuing frame from PRI_EVENT_PROGRESS on channel %d/%d span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset,pri->span);
pri_queue_frame(pri->pvts[chanpos], &f, pri);
if (
#ifdef PRI_PROGRESS_MASK
e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE
#else
e->proceeding.progress == 8
#endif
) {
/* Bring voice path up */
f.subclass.integer = AST_CONTROL_PROGRESS;
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
pri->pvts[chanpos]->progress = 1;
sig_pri_set_dialing(pri->pvts[chanpos], 0);
}
sig_pri_unlock_private(pri->pvts[chanpos]);
}
break;
case PRI_EVENT_PROCEEDING:
chanpos = pri_find_principle(pri, e->proceeding.channel, e->proceeding.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->proceeding.channel,
e->proceeding.subcmds, e->proceeding.call);
if (!pri->pvts[chanpos]->proceeding) {
struct ast_frame f = { AST_FRAME_CONTROL, .subclass.integer = AST_CONTROL_PROCEEDING, };
ast_debug(1, "Queuing frame from PRI_EVENT_PROCEEDING on channel %d/%d span %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset,pri->span);
pri_queue_frame(pri->pvts[chanpos], &f, pri);
if (
#ifdef PRI_PROGRESS_MASK
e->proceeding.progressmask & PRI_PROG_INBAND_AVAILABLE
#else
e->proceeding.progress == 8
#endif
) {
/* Bring voice path up */
f.subclass.integer = AST_CONTROL_PROGRESS;
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
pri->pvts[chanpos]->proceeding = 1;
sig_pri_set_dialing(pri->pvts[chanpos], 0);
}
sig_pri_unlock_private(pri->pvts[chanpos]);
}
break;
case PRI_EVENT_FACILITY:
chanpos = pri_find_principle(pri, e->facility.channel, e->facility.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Facility requested on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->facility.channel), PRI_CHANNEL(e->facility.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->facility.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Facility requested on channel %d/%d not in use on span %d\n",
PRI_SPAN(e->facility.channel), PRI_CHANNEL(e->facility.channel), pri->span);
} else {
sig_pri_lock_private(pri->pvts[chanpos]);
#if defined(HAVE_PRI_CALL_REROUTING)
sig_pri_handle_subcmds(pri, chanpos, e->e, e->facility.channel,
e->facility.subcmds, e->facility.subcall);
#else
sig_pri_handle_subcmds(pri, chanpos, e->e, e->facility.channel,
e->facility.subcmds, e->facility.call);
#endif /* !defined(HAVE_PRI_CALL_REROUTING) */
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
case PRI_EVENT_ANSWER:
chanpos = pri_find_principle(pri, e->answer.channel, e->answer.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Answer on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->answer.channel), PRI_CHANNEL(e->answer.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->answer.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Answer requested on channel %d/%d not in use on span %d\n",
PRI_SPAN(e->answer.channel), PRI_CHANNEL(e->answer.channel), pri->span);
} else {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->answer.channel,
e->answer.subcmds, e->answer.call);
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_ANSWER, pri);
/* Enable echo cancellation if it's not on already */
sig_pri_set_dialing(pri->pvts[chanpos], 0);
sig_pri_set_echocanceller(pri->pvts[chanpos], 1);
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->answer.useruserinfo)) {
struct ast_channel *owner;
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
pbx_builtin_setvar_helper(owner, "USERUSERINFO",
e->answer.useruserinfo);
ast_channel_unlock(owner);
}
}
#endif
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
case PRI_EVENT_HANGUP:
chanpos = pri_find_principle(pri, e->hangup.channel, e->hangup.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Hangup requested on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->hangup.channel,
e->hangup.subcmds, e->hangup.call);
if (!pri->pvts[chanpos]->alreadyhungup) {
/* we're calling here dahdi_hangup so once we get there we need to clear p->call after calling pri_hangup */
pri->pvts[chanpos]->alreadyhungup = 1;
if (pri->pvts[chanpos]->owner) {
/* Queue a BUSY instead of a hangup if our cause is appropriate */
pri->pvts[chanpos]->owner->hangupcause = e->hangup.cause;
switch (pri->pvts[chanpos]->owner->_state) {
case AST_STATE_BUSY:
case AST_STATE_UP:
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
break;
default:
switch (e->hangup.cause) {
case PRI_CAUSE_USER_BUSY:
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_BUSY, pri);
break;
case PRI_CAUSE_CALL_REJECTED:
case PRI_CAUSE_NETWORK_OUT_OF_ORDER:
case PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION:
case PRI_CAUSE_SWITCH_CONGESTION:
case PRI_CAUSE_DESTINATION_OUT_OF_ORDER:
case PRI_CAUSE_NORMAL_TEMPORARY_FAILURE:
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_CONGESTION, pri);
break;
default:
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
break;
}
break;
}
}
ast_verb(3, "Channel %d/%d, span %d got hangup, cause %d\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, e->hangup.cause);
} else {
pri_hangup(pri->pri, pri->pvts[chanpos]->call, e->hangup.cause);
pri->pvts[chanpos]->call = NULL;
}
if (e->hangup.cause == PRI_CAUSE_REQUESTED_CHAN_UNAVAIL) {
ast_verb(3, "Forcing restart of channel %d/%d on span %d since channel reported in use\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[chanpos]));
pri->pvts[chanpos]->resetting = 1;
}
if (e->hangup.aoc_units > -1)
ast_verb(3, "Channel %d/%d, span %d received AOC-E charging %d unit%s\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, (int)e->hangup.aoc_units, (e->hangup.aoc_units == 1) ? "" : "s");
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->hangup.useruserinfo)) {
struct ast_channel *owner;
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
pbx_builtin_setvar_helper(owner, "USERUSERINFO",
e->hangup.useruserinfo);
ast_channel_unlock(owner);
}
}
#endif
sig_pri_unlock_private(pri->pvts[chanpos]);
} else {
ast_log(LOG_WARNING, "Hangup on bad channel %d/%d on span %d\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
}
}
break;
case PRI_EVENT_HANGUP_REQ:
chanpos = pri_find_principle(pri, e->hangup.channel, e->hangup.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Hangup REQ requested on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->hangup.channel,
e->hangup.subcmds, e->hangup.call);
#if defined(HAVE_PRI_CALL_HOLD)
if (e->hangup.call_active && e->hangup.call_held
&& pri->hold_disconnect_transfer) {
/* We are to transfer the call instead of simply hanging up. */
sig_pri_unlock_private(pri->pvts[chanpos]);
if (!sig_pri_attempt_transfer(pri, e->hangup.call_active,
e->hangup.call_held)) {
break;
}
sig_pri_lock_private(pri->pvts[chanpos]);
}
#endif /* defined(HAVE_PRI_CALL_HOLD) */
if (pri->pvts[chanpos]->owner) {
pri->pvts[chanpos]->owner->hangupcause = e->hangup.cause;
switch (pri->pvts[chanpos]->owner->_state) {
case AST_STATE_BUSY:
case AST_STATE_UP:
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
break;
default:
switch (e->hangup.cause) {
case PRI_CAUSE_USER_BUSY:
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_BUSY, pri);
break;
case PRI_CAUSE_CALL_REJECTED:
case PRI_CAUSE_NETWORK_OUT_OF_ORDER:
case PRI_CAUSE_NORMAL_CIRCUIT_CONGESTION:
case PRI_CAUSE_SWITCH_CONGESTION:
case PRI_CAUSE_DESTINATION_OUT_OF_ORDER:
case PRI_CAUSE_NORMAL_TEMPORARY_FAILURE:
pri_queue_control(pri->pvts[chanpos], AST_CONTROL_CONGESTION, pri);
break;
default:
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
break;
}
break;
}
ast_verb(3, "Channel %d/%d, span %d got hangup request, cause %d\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span, e->hangup.cause);
if (e->hangup.aoc_units > -1)
ast_verb(3, "Channel %d/%d, span %d received AOC-E charging %d unit%s\n",
pri->pvts[chanpos]->logicalspan, pri->pvts[chanpos]->prioffset, pri->span, (int)e->hangup.aoc_units, (e->hangup.aoc_units == 1) ? "" : "s");
} else {
pri_hangup(pri->pri, pri->pvts[chanpos]->call, e->hangup.cause);
pri->pvts[chanpos]->call = NULL;
}
if (e->hangup.cause == PRI_CAUSE_REQUESTED_CHAN_UNAVAIL) {
ast_verb(3, "Forcing restart of channel %d/%d span %d since channel reported in use\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
pri_reset(pri->pri, PVT_TO_CHANNEL(pri->pvts[chanpos]));
pri->pvts[chanpos]->resetting = 1;
}
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->hangup.useruserinfo)) {
struct ast_channel *owner;
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
pbx_builtin_setvar_helper(owner, "USERUSERINFO",
e->hangup.useruserinfo);
ast_channel_unlock(owner);
}
}
#endif
sig_pri_unlock_private(pri->pvts[chanpos]);
} else {
ast_log(LOG_WARNING, "Hangup REQ on bad channel %d/%d on span %d\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
}
}
break;
case PRI_EVENT_HANGUP_ACK:
chanpos = pri_find_principle(pri, e->hangup.channel, e->hangup.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Hangup ACK requested on unconfigured channel number %d/%d span %d\n",
PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->hangup.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
pri->pvts[chanpos]->call = NULL;
pri->pvts[chanpos]->resetting = 0;
if (pri->pvts[chanpos]->owner) {
ast_verb(3, "Channel %d/%d, span %d got hangup ACK\n", PRI_SPAN(e->hangup.channel), PRI_CHANNEL(e->hangup.channel), pri->span);
}
#ifdef SUPPORT_USERUSER
if (!ast_strlen_zero(e->hangup.useruserinfo)) {
struct ast_channel *owner;
sig_pri_lock_owner(pri, chanpos);
owner = pri->pvts[chanpos]->owner;
if (owner) {
pbx_builtin_setvar_helper(owner, "USERUSERINFO",
e->hangup.useruserinfo);
ast_channel_unlock(owner);
}
}
#endif
sig_pri_unlock_private(pri->pvts[chanpos]);
}
}
break;
case PRI_EVENT_CONFIG_ERR:
ast_log(LOG_WARNING, "PRI Error on span %d: %s\n", pri->trunkgroup, e->err.err);
break;
case PRI_EVENT_RESTART_ACK:
chanpos = pri_find_principle(pri, e->restartack.channel, NULL);
if (chanpos < 0) {
/* Sometime switches (e.g. I421 / British Telecom) don't give us the
channel number, so we have to figure it out... This must be why
everybody resets exactly a channel at a time. */
for (x = 0; x < pri->numchans; x++) {
if (pri->pvts[x] && pri->pvts[x]->resetting) {
chanpos = x;
sig_pri_lock_private(pri->pvts[chanpos]);
ast_debug(1, "Assuming restart ack is really for channel %d/%d span %d\n", pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
if (pri->pvts[chanpos]->owner) {
ast_log(LOG_WARNING, "Got restart ack on channel %d/%d with owner on span %d\n", pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
}
pri->pvts[chanpos]->resetting = 0;
ast_verb(3, "B-channel %d/%d successfully restarted on span %d\n", pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
sig_pri_unlock_private(pri->pvts[chanpos]);
if (pri->resetting)
pri_check_restart(pri);
break;
}
}
if (chanpos < 0) {
ast_log(LOG_WARNING, "Restart ACK requested on strange channel %d/%d span %d\n",
PRI_SPAN(e->restartack.channel), PRI_CHANNEL(e->restartack.channel), pri->span);
}
} else {
if (pri->pvts[chanpos]) {
sig_pri_lock_private(pri->pvts[chanpos]);
if (pri->pvts[chanpos]->owner) {
ast_log(LOG_WARNING, "Got restart ack on channel %d/%d span %d with owner\n",
PRI_SPAN(e->restartack.channel), PRI_CHANNEL(e->restartack.channel), pri->span);
ast_softhangup_nolock(pri->pvts[chanpos]->owner, AST_SOFTHANGUP_DEV);
}
pri->pvts[chanpos]->resetting = 0;
ast_verb(3, "B-channel %d/%d successfully restarted on span %d\n", pri->pvts[chanpos]->logicalspan,
pri->pvts[chanpos]->prioffset, pri->span);
sig_pri_unlock_private(pri->pvts[chanpos]);
if (pri->resetting)
pri_check_restart(pri);
}
}
break;
case PRI_EVENT_SETUP_ACK:
chanpos = pri_find_principle(pri, e->setup_ack.channel, e->setup_ack.call);
if (chanpos < 0) {
ast_log(LOG_WARNING, "Received SETUP_ACKNOWLEDGE on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->setup_ack.channel), PRI_CHANNEL(e->setup_ack.channel), pri->span);
} else {
chanpos = pri_fixup_principle(pri, chanpos, e->setup_ack.call);
if (chanpos > -1) {
sig_pri_lock_private(pri->pvts[chanpos]);
sig_pri_handle_subcmds(pri, chanpos, e->e, e->setup_ack.channel,
e->setup_ack.subcmds, e->setup_ack.call);
pri->pvts[chanpos]->setup_ack = 1;
/* Send any queued digits */
for (x = 0;x < strlen(pri->pvts[chanpos]->dialdest); x++) {
ast_debug(1, "Sending pending digit '%c'\n", pri->pvts[chanpos]->dialdest[x]);
pri_information(pri->pri, pri->pvts[chanpos]->call,
pri->pvts[chanpos]->dialdest[x]);
}
sig_pri_unlock_private(pri->pvts[chanpos]);
} else
ast_log(LOG_WARNING, "Unable to move channel %d!\n", e->setup_ack.channel);
}
break;
case PRI_EVENT_NOTIFY:
#if defined(HAVE_PRI_CALL_HOLD)
chanpos = pri_find_principle(pri, e->notify.channel, e->notify.call);
#else
chanpos = pri_find_principle(pri, e->notify.channel, NULL);
#endif /* !defined(HAVE_PRI_CALL_HOLD) */
if (chanpos < 0) {
ast_log(LOG_WARNING, "Received NOTIFY on unconfigured channel %d/%d span %d\n",
PRI_SPAN(e->notify.channel), PRI_CHANNEL(e->notify.channel), pri->span);
} else {
sig_pri_lock_private(pri->pvts[chanpos]);
#if defined(HAVE_PRI_CALL_HOLD)
sig_pri_handle_subcmds(pri, chanpos, e->e, e->notify.channel,
e->notify.subcmds, e->notify.call);
#else
sig_pri_handle_subcmds(pri, chanpos, e->e, e->notify.channel,
e->notify.subcmds, NULL);
#endif /* !defined(HAVE_PRI_CALL_HOLD) */
switch (e->notify.info) {
case PRI_NOTIFY_REMOTE_HOLD:
if (!pri->discardremoteholdretrieval) {
struct ast_frame f = { AST_FRAME_CONTROL, };
f.subclass.integer = AST_CONTROL_HOLD;
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
break;
case PRI_NOTIFY_REMOTE_RETRIEVAL:
if (!pri->discardremoteholdretrieval) {
struct ast_frame f = { AST_FRAME_CONTROL, };
f.subclass.integer = AST_CONTROL_UNHOLD;
pri_queue_frame(pri->pvts[chanpos], &f, pri);
}
break;
}
sig_pri_unlock_private(pri->pvts[chanpos]);
}
break;
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_HOLD:
if (sig_pri_handle_hold(pri, e)) {
pri_hold_rej(pri->pri, e->hold.call,
PRI_CAUSE_RESOURCE_UNAVAIL_UNSPECIFIED);
} else {
pri_hold_ack(pri->pri, e->hold.call);
}
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_HOLD_ACK:
ast_debug(1, "Event: HOLD_ACK\n");
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_HOLD_REJ:
ast_debug(1, "Event: HOLD_REJ\n");
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_RETRIEVE:
sig_pri_handle_retrieve(pri, e);
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_RETRIEVE_ACK:
ast_debug(1, "Event: RETRIEVE_ACK\n");
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_HOLD)
case PRI_EVENT_RETRIEVE_REJ:
ast_debug(1, "Event: RETRIEVE_REJ\n");
break;
#endif /* defined(HAVE_PRI_CALL_HOLD) */
default:
ast_debug(1, "Event: %d\n", e->e);
break;
}
}
ast_mutex_unlock(&pri->lock);
}
/* Never reached */
return NULL;
}
void sig_pri_init_pri(struct sig_pri_pri *pri)
{
int i;
memset(pri, 0, sizeof(*pri));
ast_mutex_init(&pri->lock);
pri->master = AST_PTHREADT_NULL;
for (i = 0; i < NUM_DCHANS; i++)
pri->fds[i] = -1;
}
int sig_pri_hangup(struct sig_pri_chan *p, struct ast_channel *ast)
{
int res = 0;
#ifdef SUPPORT_USERUSER
const char *useruser = pbx_builtin_getvar_helper(ast, "USERUSERINFO");
#endif
ast_log(LOG_DEBUG, "%s %d\n", __FUNCTION__, p->channel);
if (!ast->tech_pvt) {
ast_log(LOG_WARNING, "Asked to hangup channel not connected\n");
return 0;
}
p->owner = NULL;
p->outgoing = 0;
p->digital = 0;
p->proceeding = 0;
p->progress = 0;
p->alerting = 0;
p->setup_ack = 0;
p->cid_num[0] = '\0';
p->cid_subaddr[0] = '\0';
p->cid_name[0] = '\0';
p->exten[0] = '\0';
sig_pri_set_dialing(p, 0);
if (!p->call) {
res = 0;
goto exit;
}
/* Make sure we have a call (or REALLY have a call in the case of a PRI) */
if (!pri_grab(p, p->pri)) {
if (p->alreadyhungup) {
ast_log(LOG_DEBUG, "Already hungup... Calling hangup once, and clearing call\n");
#ifdef SUPPORT_USERUSER
pri_call_set_useruser(p->call, useruser);
#endif
pri_hangup(p->pri->pri, p->call, -1);
p->call = NULL;
} else {
const char *cause = pbx_builtin_getvar_helper(ast,"PRI_CAUSE");
int icause = ast->hangupcause ? ast->hangupcause : -1;
ast_log(LOG_DEBUG, "Not yet hungup... Calling hangup once with icause, and clearing call\n");
#ifdef SUPPORT_USERUSER
pri_call_set_useruser(p->call, useruser);
#endif
p->alreadyhungup = 1;
if (cause) {
if (atoi(cause))
icause = atoi(cause);
}
pri_hangup(p->pri->pri, p->call, icause);
}
if (res < 0)
ast_log(LOG_WARNING, "pri_disconnect failed\n");
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
res = -1;
}
exit:
ast->tech_pvt = NULL;
return res;
}
/*!
* \brief Extract the called number and subaddress from the dial string.
* \since 1.6.3
*
* \param p sig_pri channel structure.
* \param rdest Dial string buffer to extract called number and subaddress.
* \param called Buffer to fill with extracted <number>[:<subaddress>]
* \param called_buff_size Size of buffer to fill.
*
* \note Parsing must remain in sync with sig_pri_call().
*
* \return Nothing
*/
void sig_pri_extract_called_num_subaddr(struct sig_pri_chan *p, const char *rdest, char *called, size_t called_buff_size)
{
char *dial;
char *number;
char *subaddr;
/* Get private copy of dial string. */
dial = ast_strdupa(rdest);
/* Skip channel selection section. */
number = strchr(dial, '/');
if (number) {
++number;
} else {
number = "";
}
#if defined(HAVE_PRI_SETUP_KEYPAD)
/*
* v--- number points here
* /[K<keypad-digits>/]extension
*/
if (number[0] == 'K') {
/* Skip the keypad facility digits. */
number = strchr(number + 1, '/');
if (number) {
++number;
} else {
number = "";
}
}
/*
* v--- number points here
* /extension
*/
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
/* Find and extract dialed_subaddress */
subaddr = strchr(number, ':');
if (subaddr) {
*subaddr++ = '\0';
/* Skip subaddress type prefix. */
switch (*subaddr) {
case 'U':
case 'u':
case 'N':
case 'n':
++subaddr;
break;
default:
break;
}
}
/* Skip type-of-number/dial-plan prefix characters. */
if (strlen(number) < p->stripmsd) {
number = "";
} else {
number += p->stripmsd;
while (isalpha(*number)) {
++number;
}
}
/* Fill buffer with extracted number and subaddress. */
if (ast_strlen_zero(subaddr)) {
/* Put in called number only since there is no subaddress. */
snprintf(called, called_buff_size, "%s", number);
} else {
/* Put in called number and subaddress. */
snprintf(called, called_buff_size, "%s:%s", number, subaddr);
}
}
/*! \note Parsing must remain in sync with sig_pri_extract_called_num_subaddr(). */
int sig_pri_call(struct sig_pri_chan *p, struct ast_channel *ast, char *rdest, int timeout, int layer1)
{
char dest[256]; /* must be same length as p->dialdest */
struct ast_party_subaddress dialed_subaddress; /* Called subaddress */
struct pri_sr *sr;
char *c, *l, *n, *s;
#ifdef SUPPORT_USERUSER
const char *useruser;
#endif
int pridialplan;
int dp_strip;
int prilocaldialplan;
int ldp_strip;
int exclusive;
#if defined(HAVE_PRI_SETUP_KEYPAD)
const char *keypad;
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
ast_log(LOG_DEBUG, "CALLING CID_NAME: %s CID_NUM:: %s\n", ast->cid.cid_name, ast->cid.cid_num);
if (!p->pri) {
ast_log(LOG_ERROR, "Could not find pri on channel %d\n", p->channel);
return -1;
}
if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) {
ast_log(LOG_WARNING, "sig_pri_call called on %s, neither down nor reserved\n", ast->name);
return -1;
}
ast_copy_string(dest, rdest, sizeof(dest));
p->dialdest[0] = '\0';
p->outgoing = 1;
c = strchr(dest, '/');
if (c) {
c++;
} else {
c = "";
}
#if defined(HAVE_PRI_SETUP_KEYPAD)
/*
* v--- c points here
* /[K<keypad-digits>/]extension
*/
if (c[0] == 'K') {
/* Extract the keypad facility digits. */
keypad = c + 1;
c = strchr(keypad, '/');
if (c) {
/* Terminate the keypad facility digits. */
*c++ = '\0';
} else {
c = "";
}
if (ast_strlen_zero(keypad)) {
/* What no keypad digits? */
keypad = NULL;
}
} else {
keypad = NULL;
}
/*
* v--- c points here
* /extension
*/
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
/* setup dialed_subaddress if found */
ast_party_subaddress_init(&dialed_subaddress);
s = strchr(c, ':');
if (s) {
*s = '\0';
s++;
/* prefix */
/* 'n' = NSAP */
/* 'U' = odd, 'u'= even */
/* Default = NSAP */
switch (*s) {
case 'U':
dialed_subaddress.odd_even_indicator = 1;
/* fall through */
case 'u':
s++;
dialed_subaddress.type = 2;
break;
case 'N':
case 'n':
s++;
/* default already covered with ast_party_subaddress_init */
break;
}
dialed_subaddress.str = s;
dialed_subaddress.valid = 1;
s = NULL;
}
l = NULL;
n = NULL;
if (!p->hidecallerid) {
l = ast->connected.id.number;
if (!p->hidecalleridname) {
n = ast->connected.id.name;
}
}
if (strlen(c) < p->stripmsd) {
ast_log(LOG_WARNING, "Number '%s' is shorter than stripmsd (%d)\n", c, p->stripmsd);
return -1;
}
if (pri_grab(p, p->pri)) {
ast_log(LOG_WARNING, "Failed to grab PRI!\n");
return -1;
}
if (!(p->call = pri_new_call(p->pri->pri))) {
ast_log(LOG_WARNING, "Unable to create call on channel %d\n", p->channel);
pri_rel(p->pri);
return -1;
}
if (!(sr = pri_sr_new())) {
ast_log(LOG_WARNING, "Failed to allocate setup request channel %d\n", p->channel);
pri_destroycall(p->pri->pri, p->call);
p->call = NULL;
pri_rel(p->pri);
return -1;
}
p->digital = IS_DIGITAL(ast->transfercapability);
/* Should the picked channel be used exclusively? */
if (p->priexclusive || p->pri->nodetype == PRI_NETWORK) {
exclusive = 1;
} else {
exclusive = 0;
}
pri_sr_set_channel(sr, PVT_TO_CHANNEL(p), exclusive, 1);
pri_sr_set_bearer(sr, p->digital ? PRI_TRANS_CAP_DIGITAL : ast->transfercapability,
(p->digital ? -1 : layer1));
if (p->pri->facilityenable)
pri_facility_enable(p->pri->pri);
ast_verb(3, "Requested transfer capability: 0x%.2x - %s\n", ast->transfercapability, ast_transfercapability2str(ast->transfercapability));
dp_strip = 0;
pridialplan = p->pri->dialplan - 1;
if (pridialplan == -2 || pridialplan == -3) { /* compute dynamically */
if (strncmp(c + p->stripmsd, p->pri->internationalprefix, strlen(p->pri->internationalprefix)) == 0) {
if (pridialplan == -2) {
dp_strip = strlen(p->pri->internationalprefix);
}
pridialplan = PRI_INTERNATIONAL_ISDN;
} else if (strncmp(c + p->stripmsd, p->pri->nationalprefix, strlen(p->pri->nationalprefix)) == 0) {
if (pridialplan == -2) {
dp_strip = strlen(p->pri->nationalprefix);
}
pridialplan = PRI_NATIONAL_ISDN;
} else {
pridialplan = PRI_LOCAL_ISDN;
}
}
while (c[p->stripmsd] > '9' && c[p->stripmsd] != '*' && c[p->stripmsd] != '#') {
switch (c[p->stripmsd]) {
case 'U':
pridialplan = (PRI_TON_UNKNOWN << 4) | (pridialplan & 0xf);
break;
case 'I':
pridialplan = (PRI_TON_INTERNATIONAL << 4) | (pridialplan & 0xf);
break;
case 'N':
pridialplan = (PRI_TON_NATIONAL << 4) | (pridialplan & 0xf);
break;
case 'L':
pridialplan = (PRI_TON_NET_SPECIFIC << 4) | (pridialplan & 0xf);
break;
case 'S':
pridialplan = (PRI_TON_SUBSCRIBER << 4) | (pridialplan & 0xf);
break;
case 'V':
pridialplan = (PRI_TON_ABBREVIATED << 4) | (pridialplan & 0xf);
break;
case 'R':
pridialplan = (PRI_TON_RESERVED << 4) | (pridialplan & 0xf);
break;
case 'u':
pridialplan = PRI_NPI_UNKNOWN | (pridialplan & 0xf0);
break;
case 'e':
pridialplan = PRI_NPI_E163_E164 | (pridialplan & 0xf0);
break;
case 'x':
pridialplan = PRI_NPI_X121 | (pridialplan & 0xf0);
break;
case 'f':
pridialplan = PRI_NPI_F69 | (pridialplan & 0xf0);
break;
case 'n':
pridialplan = PRI_NPI_NATIONAL | (pridialplan & 0xf0);
break;
case 'p':
pridialplan = PRI_NPI_PRIVATE | (pridialplan & 0xf0);
break;
case 'r':
pridialplan = PRI_NPI_RESERVED | (pridialplan & 0xf0);
break;
#if defined(HAVE_PRI_REVERSE_CHARGE)
case 'C':
pri_sr_set_reversecharge(sr, PRI_REVERSECHARGE_REQUESTED);
break;
#endif
#if defined(HAVE_PRI_SETUP_KEYPAD)
case 'K':
/* Reserve this letter for keypad facility digits. */
break;
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
default:
if (isalpha(c[p->stripmsd])) {
ast_log(LOG_WARNING, "Unrecognized pridialplan %s modifier: %c\n",
c[p->stripmsd] > 'Z' ? "NPI" : "TON", c[p->stripmsd]);
}
break;
}
c++;
}
#if defined(HAVE_PRI_SETUP_KEYPAD)
if (keypad) {
pri_sr_set_keypad_digits(sr, keypad);
}
if (!keypad || !ast_strlen_zero(c + p->stripmsd + dp_strip))
#endif /* defined(HAVE_PRI_SETUP_KEYPAD) */
{
pri_sr_set_called(sr, c + p->stripmsd + dp_strip, pridialplan, s ? 1 : 0);
}
#if defined(HAVE_PRI_SUBADDR)
if (dialed_subaddress.valid) {
struct pri_party_subaddress subaddress;
memset(&subaddress, 0, sizeof(subaddress));
sig_pri_party_subaddress_from_ast(&subaddress, &dialed_subaddress);
pri_sr_set_called_subaddress(sr, &subaddress);
}
#endif /* defined(HAVE_PRI_SUBADDR) */
ldp_strip = 0;
prilocaldialplan = p->pri->localdialplan - 1;
if ((l != NULL) && (prilocaldialplan == -2 || prilocaldialplan == -3)) { /* compute dynamically */
if (strncmp(l, p->pri->internationalprefix, strlen(p->pri->internationalprefix)) == 0) {
if (prilocaldialplan == -2) {
ldp_strip = strlen(p->pri->internationalprefix);
}
prilocaldialplan = PRI_INTERNATIONAL_ISDN;
} else if (strncmp(l, p->pri->nationalprefix, strlen(p->pri->nationalprefix)) == 0) {
if (prilocaldialplan == -2) {
ldp_strip = strlen(p->pri->nationalprefix);
}
prilocaldialplan = PRI_NATIONAL_ISDN;
} else {
prilocaldialplan = PRI_LOCAL_ISDN;
}
}
if (l != NULL) {
while (*l > '9' && *l != '*' && *l != '#') {
switch (*l) {
case 'U':
prilocaldialplan = (PRI_TON_UNKNOWN << 4) | (prilocaldialplan & 0xf);
break;
case 'I':
prilocaldialplan = (PRI_TON_INTERNATIONAL << 4) | (prilocaldialplan & 0xf);
break;
case 'N':
prilocaldialplan = (PRI_TON_NATIONAL << 4) | (prilocaldialplan & 0xf);
break;
case 'L':
prilocaldialplan = (PRI_TON_NET_SPECIFIC << 4) | (prilocaldialplan & 0xf);
break;
case 'S':
prilocaldialplan = (PRI_TON_SUBSCRIBER << 4) | (prilocaldialplan & 0xf);
break;
case 'V':
prilocaldialplan = (PRI_TON_ABBREVIATED << 4) | (prilocaldialplan & 0xf);
break;
case 'R':
prilocaldialplan = (PRI_TON_RESERVED << 4) | (prilocaldialplan & 0xf);
break;
case 'u':
prilocaldialplan = PRI_NPI_UNKNOWN | (prilocaldialplan & 0xf0);
break;
case 'e':
prilocaldialplan = PRI_NPI_E163_E164 | (prilocaldialplan & 0xf0);
break;
case 'x':
prilocaldialplan = PRI_NPI_X121 | (prilocaldialplan & 0xf0);
break;
case 'f':
prilocaldialplan = PRI_NPI_F69 | (prilocaldialplan & 0xf0);
break;
case 'n':
prilocaldialplan = PRI_NPI_NATIONAL | (prilocaldialplan & 0xf0);
break;
case 'p':
prilocaldialplan = PRI_NPI_PRIVATE | (prilocaldialplan & 0xf0);
break;
case 'r':
prilocaldialplan = PRI_NPI_RESERVED | (prilocaldialplan & 0xf0);
break;
default:
if (isalpha(*l)) {
ast_log(LOG_WARNING,
"Unrecognized prilocaldialplan %s modifier: %c\n",
*l > 'Z' ? "NPI" : "TON", *l);
}
break;
}
l++;
}
}
pri_sr_set_caller(sr, l ? (l + ldp_strip) : NULL, n, prilocaldialplan,
p->use_callingpres ? ast->connected.id.number_presentation : (l ? PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN : PRES_NUMBER_NOT_AVAILABLE));
#if defined(HAVE_PRI_SUBADDR)
if (ast->connected.id.subaddress.valid) {
struct pri_party_subaddress subaddress;
memset(&subaddress, 0, sizeof(subaddress));
sig_pri_party_subaddress_from_ast(&subaddress, &ast->connected.id.subaddress);
pri_sr_set_caller_subaddress(sr, &subaddress);
}
#endif /* defined(HAVE_PRI_SUBADDR) */
sig_pri_redirecting_update(p, ast);
#ifdef SUPPORT_USERUSER
/* User-user info */
useruser = pbx_builtin_getvar_helper(p->owner, "USERUSERINFO");
if (useruser)
pri_sr_set_useruser(sr, useruser);
#endif
if (pri_setup(p->pri->pri, p->call, sr)) {
ast_log(LOG_WARNING, "Unable to setup call to %s (using %s)\n",
c + p->stripmsd + dp_strip, dialplan2str(p->pri->dialplan));
pri_rel(p->pri);
pri_sr_free(sr);
return -1;
}
pri_sr_free(sr);
ast_setstate(ast, AST_STATE_DIALING);
sig_pri_set_dialing(p, 1);
pri_rel(p->pri);
return 0;
}
int sig_pri_indicate(struct sig_pri_chan *p, struct ast_channel *chan, int condition, const void *data, size_t datalen)
{
int res = -1;
switch (condition) {
case AST_CONTROL_BUSY:
if (p->priindication_oob) {
chan->hangupcause = AST_CAUSE_USER_BUSY;
chan->_softhangup |= AST_SOFTHANGUP_DEV;
res = 0;
} else if (!p->progress && p->pri && !p->outgoing) {
if (p->pri->pri) {
if (!pri_grab(p, p->pri)) {
#ifdef HAVE_PRI_PROG_W_CAUSE
pri_progress_with_cause(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1, PRI_CAUSE_USER_BUSY); /* cause = 17 */
#else
pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1);
#endif
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
}
p->progress = 1;
res = sig_pri_play_tone(p, SIG_PRI_TONE_BUSY);
}
break;
case AST_CONTROL_RINGING:
if ((!p->alerting) && p->pri && !p->outgoing && (chan->_state != AST_STATE_UP)) {
if (p->pri->pri) {
if (!pri_grab(p, p->pri)) {
pri_acknowledge(p->pri->pri,p->call, PVT_TO_CHANNEL(p), !p->digital);
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
}
p->alerting = 1;
}
res = sig_pri_play_tone(p, SIG_PRI_TONE_RINGTONE);
if (chan->_state != AST_STATE_UP) {
if (chan->_state != AST_STATE_RING)
ast_setstate(chan, AST_STATE_RINGING);
}
break;
case AST_CONTROL_PROCEEDING:
ast_debug(1,"Received AST_CONTROL_PROCEEDING on %s\n",chan->name);
if (!p->proceeding && p->pri && !p->outgoing) {
if (p->pri->pri) {
if (!pri_grab(p, p->pri)) {
pri_proceeding(p->pri->pri,p->call, PVT_TO_CHANNEL(p), !p->digital);
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
}
p->proceeding = 1;
sig_pri_set_dialing(p, 0);
}
/* don't continue in ast_indicate */
res = 0;
break;
case AST_CONTROL_PROGRESS:
ast_debug(1,"Received AST_CONTROL_PROGRESS on %s\n",chan->name);
p->digital = 0; /* Digital-only calls isn't allowing any inband progress messages */
if (!p->progress && p->pri && !p->outgoing) {
if (p->pri->pri) {
if (!pri_grab(p, p->pri)) {
#ifdef HAVE_PRI_PROG_W_CAUSE
pri_progress_with_cause(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1, -1); /* no cause at all */
#else
pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1);
#endif
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
}
p->progress = 1;
}
/* don't continue in ast_indicate */
res = 0;
break;
case AST_CONTROL_CONGESTION:
chan->hangupcause = AST_CAUSE_CONGESTION;
if (p->priindication_oob) {
chan->hangupcause = AST_CAUSE_SWITCH_CONGESTION;
chan->_softhangup |= AST_SOFTHANGUP_DEV;
res = 0;
} else if (!p->progress && p->pri && !p->outgoing) {
if (p->pri->pri) {
if (!pri_grab(p, p->pri)) {
#ifdef HAVE_PRI_PROG_W_CAUSE
pri_progress_with_cause(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1, PRI_CAUSE_SWITCH_CONGESTION); /* cause = 42 */
#else
pri_progress(p->pri->pri,p->call, PVT_TO_CHANNEL(p), 1);
#endif
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
}
p->progress = 1;
res = sig_pri_play_tone(p, SIG_PRI_TONE_CONGESTION);
}
break;
case AST_CONTROL_HOLD:
if (p->pri && !strcasecmp(p->mohinterpret, "passthrough")) {
if (!pri_grab(p, p->pri)) {
res = pri_notify(p->pri->pri, p->call, p->prioffset, PRI_NOTIFY_REMOTE_HOLD);
pri_rel(p->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", p->pri->span);
}
} else
ast_moh_start(chan, data, p->mohinterpret);
break;
case AST_CONTROL_UNHOLD:
if (p->pri && !strcasecmp(p->mohinterpret, "passthrough")) {
if (!pri_grab(p, p->pri)) {
res = pri_notify(p->pri->pri, p->call, p->prioffset, PRI_NOTIFY_REMOTE_RETRIEVAL);
pri_rel(p->pri);
}
} else
ast_moh_stop(chan);
break;
case AST_CONTROL_SRCUPDATE:
res = 0;
break;
case -1:
res = sig_pri_play_tone(p, -1);
break;
case AST_CONTROL_CONNECTED_LINE:
ast_debug(1, "Received AST_CONTROL_CONNECTED_LINE on %s\n", chan->name);
if (p->pri && !pri_grab(p, p->pri)) {
struct pri_party_connected_line connected;
memset(&connected, 0, sizeof(connected));
sig_pri_party_id_from_ast(&connected.id, &chan->connected.id);
pri_connected_line_update(p->pri->pri, p->call, &connected);
pri_rel(p->pri);
}
break;
case AST_CONTROL_REDIRECTING:
ast_debug(1, "Received AST_CONTROL_REDIRECTING on %s\n", chan->name);
if (p->pri && !pri_grab(p, p->pri)) {
sig_pri_redirecting_update(p, chan);
pri_rel(p->pri);
}
break;
}
return res;
}
int sig_pri_answer(struct sig_pri_chan *p, struct ast_channel *ast)
{
int res = 0;
/* Send a pri acknowledge */
if (!pri_grab(p, p->pri)) {
p->proceeding = 1;
sig_pri_set_dialing(p, 0);
res = pri_answer(p->pri->pri, p->call, 0, !p->digital);
pri_rel(p->pri);
} else {
res = -1;
}
ast_setstate(ast, AST_STATE_UP);
return res;
}
int sig_pri_available(struct sig_pri_chan *p, int channelmatch, ast_group_t groupmatch, int *reason, int *channelmatched, int *groupmatched)
{
/* If no owner and interface has a B channel then likely available */
if (!p->owner && !p->no_b_channel && p->pri) {
#ifdef HAVE_PRI_SERVICE_MESSAGES
char db_chan_name[20], db_answer[5], state;
int why = 0;
snprintf(db_chan_name, sizeof(db_chan_name), "%s/%d:%d", dahdi_db, p->pri->span, p->channel);
if (!ast_db_get(db_chan_name, SRVST_DBKEY, db_answer, sizeof(db_answer))) {
sscanf(db_answer, "%1c:%30d", &state, &why);
}
if (p->resetting || p->call || why) {
if (why) {
*reason = AST_CAUSE_REQUESTED_CHAN_UNAVAIL;
}
return 0;
}
#else
if (p->resetting || p->call) {
return 0;
}
#endif
return 1;
}
return 0;
}
/* If return 0, it means this function was able to handle it (pre setup digits). If non zero, the user of this
* functions should handle it normally (generate inband DTMF) */
int sig_pri_digit_begin(struct sig_pri_chan *pvt, struct ast_channel *ast, char digit)
{
if ((ast->_state == AST_STATE_DIALING) && !pvt->proceeding) {
if (pvt->setup_ack) {
if (!pri_grab(pvt, pvt->pri)) {
pri_information(pvt->pri->pri, pvt->call, digit);
pri_rel(pvt->pri);
} else {
ast_log(LOG_WARNING, "Unable to grab PRI on span %d\n", pvt->pri->span);
}
} else if (strlen(pvt->dialdest) < sizeof(pvt->dialdest) - 1) {
int res;
ast_debug(1, "Queueing digit '%c' since setup_ack not yet received\n", digit);
res = strlen(pvt->dialdest);
pvt->dialdest[res++] = digit;
pvt->dialdest[res] = '\0';
}
return 0;
}
return 1;
}
int sig_pri_start_pri(struct sig_pri_pri *pri)
{
int x;
int i;
ast_mutex_init(&pri->lock);
for (i = 0; i < NUM_DCHANS; i++) {
if (pri->fds[i] == -1) {
break;
}
switch (pri->sig) {
case SIG_BRI:
pri->dchans[i] = pri_new_bri(pri->fds[i], 1, pri->nodetype, pri->switchtype);
break;
case SIG_BRI_PTMP:
pri->dchans[i] = pri_new_bri(pri->fds[i], 0, pri->nodetype, pri->switchtype);
break;
default:
pri->dchans[i] = pri_new(pri->fds[i], pri->nodetype, pri->switchtype);
#ifdef HAVE_PRI_SERVICE_MESSAGES
if (pri->enable_service_message_support) {
pri_set_service_message_support(pri->dchans[i], 1);
}
#endif
break;
}
pri_set_overlapdial(pri->dchans[i], (pri->overlapdial & DAHDI_OVERLAPDIAL_OUTGOING) ? 1 : 0);
#ifdef HAVE_PRI_PROG_W_CAUSE
pri_set_chan_mapping_logical(pri->dchans[i], pri->qsigchannelmapping == DAHDI_CHAN_MAPPING_LOGICAL);
#endif
#ifdef HAVE_PRI_INBANDDISCONNECT
pri_set_inbanddisconnect(pri->dchans[i], pri->inbanddisconnect);
#endif
#if defined(HAVE_PRI_CALL_HOLD)
pri_hold_enable(pri->dchans[i], 1);
#endif /* defined(HAVE_PRI_CALL_HOLD) */
#if defined(HAVE_PRI_CALL_REROUTING)
pri_reroute_enable(pri->dchans[i], 1);
#endif /* defined(HAVE_PRI_CALL_REROUTING) */
/* Enslave to master if appropriate */
if (i)
pri_enslave(pri->dchans[0], pri->dchans[i]);
if (!pri->dchans[i]) {
if (pri->fds[i] > 0)
close(pri->fds[i]);
pri->fds[i] = -1;
ast_log(LOG_ERROR, "Unable to create PRI structure\n");
return -1;
}
pri_set_debug(pri->dchans[i], DEFAULT_PRI_DEBUG);
pri_set_nsf(pri->dchans[i], pri->nsf);
#ifdef PRI_GETSET_TIMERS
for (x = 0; x < PRI_MAX_TIMERS; x++) {
if (pri->pritimers[x] != 0)
pri_set_timer(pri->dchans[i], x, pri->pritimers[x]);
}
#endif
}
/* Assume primary is the one we use */
pri->pri = pri->dchans[0];
pri->resetpos = -1;
if (ast_pthread_create_background(&pri->master, NULL, pri_dchannel, pri)) {
for (i = 0; i < NUM_DCHANS; i++) {
if (!pri->dchans[i])
break;
if (pri->fds[i] > 0)
close(pri->fds[i]);
pri->fds[i] = -1;
}
ast_log(LOG_ERROR, "Unable to spawn D-channel: %s\n", strerror(errno));
return -1;
}
return 0;
}
void sig_pri_chan_alarm_notify(struct sig_pri_chan *p, int noalarm)
{
if (!noalarm) {
p->inalarm = 1;
if (!p->pri || !p->pri->pri || (pri_get_timer(p->pri->pri, PRI_TIMER_T309) < 0)) {
/* T309 is not enabled : hangup calls when alarm occurs */
if (p->call) {
if (p->pri && p->pri->pri) {
if (!pri_grab(p, p->pri)) {
pri_hangup(p->pri->pri, p->call, -1);
pri_destroycall(p->pri->pri, p->call);
p->call = NULL;
pri_rel(p->pri);
} else
ast_log(LOG_WARNING, "Failed to grab PRI!\n");
} else
ast_log(LOG_WARNING, "The PRI Call has not been destroyed\n");
}
if (p->owner)
ast_softhangup_nolock(p->owner, AST_SOFTHANGUP_DEV);
}
} else {
p->inalarm = 0;
}
}
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, int trunkgroup)
{
struct sig_pri_chan *p;
p = ast_calloc(1, sizeof(*p));
if (!p)
return p;
p->logicalspan = logicalspan;
p->prioffset = channo;
p->mastertrunkgroup = trunkgroup;
p->calls = callback;
p->chan_pvt = pvt_data;
p->pri = pri;
return p;
}
/*!
* \brief Delete the sig_pri private channel structure.
* \since 1.6.3
*
* \param doomed sig_pri private channel structure to delete.
*
* \return Nothing
*/
void sig_pri_chan_delete(struct sig_pri_chan *doomed)
{
ast_free(doomed);
}
static void build_status(char *s, size_t len, int status, int active)
{
if (!s || len < 1) {
return;
}
s[0] = '\0';
if (!(status & DCHAN_NOTINALARM))
strncat(s, "In Alarm, ", len - strlen(s) - 1);
if (status & DCHAN_UP)
strncat(s, "Up", len - strlen(s) - 1);
else
strncat(s, "Down", len - strlen(s) - 1);
if (active)
strncat(s, ", Active", len - strlen(s) - 1);
else
strncat(s, ", Standby", len - strlen(s) - 1);
s[len - 1] = '\0';
}
void sig_pri_cli_show_spans(int fd, int span, struct sig_pri_pri *pri)
{
char status[256];
int x;
for (x = 0; x < NUM_DCHANS; x++) {
if (pri->dchans[x]) {
build_status(status, sizeof(status), pri->dchanavail[x], pri->dchans[x] == pri->pri);
ast_cli(fd, "PRI span %d/%d: %s\n", span, x, status);
}
}
}
void sig_pri_cli_show_span(int fd, int *dchannels, struct sig_pri_pri *pri)
{
int x;
char status[256];
for (x = 0; x < NUM_DCHANS; x++) {
if (pri->dchans[x]) {
#ifdef PRI_DUMP_INFO_STR
char *info_str = NULL;
#endif
ast_cli(fd, "%s D-channel: %d\n", pri_order(x), dchannels[x]);
build_status(status, sizeof(status), pri->dchanavail[x], pri->dchans[x] == pri->pri);
ast_cli(fd, "Status: %s\n", status);
#ifdef PRI_DUMP_INFO_STR
info_str = pri_dump_info_str(pri->pri);
if (info_str) {
ast_cli(fd, "%s", info_str);
free(info_str);
}
#else
pri_dump_info(pri->pri);
#endif
ast_cli(fd, "Overlap Recv: %s\n\n", (pri->overlapdial & DAHDI_OVERLAPDIAL_INCOMING)?"Yes":"No");
ast_cli(fd, "\n");
}
}
}
int pri_send_keypad_facility_exec(struct sig_pri_chan *p, const char *digits)
{
sig_pri_lock_private(p);
if (!p->pri || !p->call) {
ast_debug(1, "Unable to find pri or call on channel!\n");
sig_pri_unlock_private(p);
return -1;
}
if (!pri_grab(p, p->pri)) {
pri_keypad_facility(p->pri->pri, p->call, digits);
pri_rel(p->pri);
} else {
ast_debug(1, "Unable to grab pri to send keypad facility!\n");
sig_pri_unlock_private(p);
return -1;
}
sig_pri_unlock_private(p);
return 0;
}
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)
{
int res = -1;
sig_pri_lock_private(p);
if (!p->pri || !p->call) {
ast_log(LOG_DEBUG, "Unable to find pri or call on channel!\n");
sig_pri_unlock_private(p);
return -1;
}
if (!pri_grab(p, p->pri)) {
res = pri_callrerouting_facility(p->pri->pri, p->call, destination, original, reason);
pri_rel(p->pri);
} else {
ast_log(LOG_DEBUG, "Unable to grab pri to send callrerouting facility on span %d!\n", p->pri->span);
}
sig_pri_unlock_private(p);
return res;
}
#ifdef HAVE_PRI_SERVICE_MESSAGES
int pri_maintenance_bservice(struct pri *pri, struct sig_pri_chan *p, int changestatus)
{
int channel = PVT_TO_CHANNEL(p);
int span = PRI_SPAN(channel);
return pri_maintenance_service(pri, span, channel, changestatus);
}
#endif
void sig_pri_fixup(struct ast_channel *oldchan, struct ast_channel *newchan, struct sig_pri_chan *pchan)
{
if (pchan->owner == oldchan) {
pchan->owner = newchan;
}
}
#endif /* HAVE_PRI */