MISDN_ALERTING, /*!< when Alerting */
MISDN_BUSY, /*!< when BUSY */
MISDN_CONNECTED, /*!< when connected */
- MISDN_PRECONNECTED, /*!< when connected */
MISDN_DISCONNECTED, /*!< when connected */
- MISDN_RELEASED, /*!< when connected */
- MISDN_BRIDGED, /*!< when bridged */
MISDN_CLEANING, /*!< when hangup from * but we were connected before */
- MISDN_HUNGUP_FROM_MISDN, /*!< when DISCONNECT/RELEASE/REL_COMP came from misdn */
- MISDN_HUNGUP_FROM_AST, /*!< when DISCONNECT/RELEASE/REL_COMP came out of misdn_hangup */
- MISDN_HOLDED, /*!< if this chan is holded */
- MISDN_HOLD_DISCONNECT, /*!< if this chan is holded */
-
};
#define ORG_AST 1
#define ORG_MISDN 2
+enum misdn_hold_state {
+ MISDN_HOLD_IDLE, /*!< HOLD not active */
+ MISDN_HOLD_ACTIVE, /*!< Call is held */
+ MISDN_HOLD_TRANSFER, /*!< Held call is being transferred */
+ MISDN_HOLD_DISCONNECT, /*!< Held call is being disconnected */
+};
struct hold_info {
/*!
- * \brief Logical port the channel call record is HOLDED on
- * because the B channel is no longer associated.
+ * \brief Call HOLD state.
+ */
+ enum misdn_hold_state state;
+ /*!
+ * \brief Logical port the channel call record is HELD on
+ * because the B channel is no longer associated.
*/
int port;
/*!
- * \brief Original B channel number the HOLDED call was using.
+ * \brief Original B channel number the HELD call was using.
* \note Used only for debug display messages.
*/
int channel;
struct misdn_bchannel *bc;
/*!
- * \brief HOLDED channel information
+ * \brief HELD channel call information
*/
- struct hold_info hold_info;
+ struct hold_info hold;
- /*!
- * \brief From associated B channel: Layer 3 process ID
- * \note Used to find the HOLDED channel call record when retrieving a call.
+ /*!
+ * \brief From associated B channel: Layer 3 process ID
+ * \note Used to find the HELD channel call record when retrieving a call.
*/
unsigned int l3id;
static struct ast_channel *misdn_new(struct chan_list *cl, int state, char *exten, char *callerid, int format, int port, int c);
static void send_digit_to_chan(struct chan_list *cl, char digit );
-static void hangup_chan(struct chan_list *ch);
static int pbx_start_chan(struct chan_list *ch);
#define MISDN_ASTERISK_TECH_PVT(ast) ast->tech_pvt
static int dialtone_indicate(struct chan_list *cl);
-static int hanguptone_indicate(struct chan_list *cl);
+static void hanguptone_indicate(struct chan_list *cl);
static int stop_indicate(struct chan_list *cl);
static int start_bc_tones(struct chan_list *cl);
static int stop_bc_tones(struct chan_list *cl);
-static void release_chan(struct misdn_bchannel *bc);
+static void release_chan_early(struct chan_list *ch);
+static void release_chan(struct chan_list *ch, struct misdn_bchannel *bc);
static int misdn_check_l2l1(struct ast_channel *chan, void *data);
static int misdn_set_opt_exec(struct ast_channel *chan, void *data);
{MISDN_ALERTING,"ALERTING"}, /* when Alerting */
{MISDN_BUSY,"BUSY"}, /* when BUSY */
{MISDN_CONNECTED,"CONNECTED"}, /* when connected */
- {MISDN_PRECONNECTED,"PRECONNECTED"}, /* when connected */
{MISDN_DISCONNECTED,"DISCONNECTED"}, /* when connected */
- {MISDN_RELEASED,"RELEASED"}, /* when connected */
- {MISDN_BRIDGED,"BRIDGED"}, /* when bridged */
{MISDN_CLEANING,"CLEANING"}, /* when hangup from * but we were connected before */
- {MISDN_HUNGUP_FROM_MISDN,"HUNGUP_FROM_MISDN"}, /* when DISCONNECT/RELEASE/REL_COMP came from misdn */
- {MISDN_HOLDED,"HOLDED"}, /* when DISCONNECT/RELEASE/REL_COMP came from misdn */
- {MISDN_HOLD_DISCONNECT,"HOLD_DISCONNECT"}, /* when DISCONNECT/RELEASE/REL_COMP came from misdn */
- {MISDN_HUNGUP_FROM_AST,"HUNGUP_FROM_AST"} /* when DISCONNECT/RELEASE/REL_COMP came out of misdn_hangup */
};
static const char *misdn_get_ch_state(struct chan_list *p)
if (bc) {
print_bc_info(a->fd, help, bc);
} else {
- if (help->state == MISDN_HOLDED) {
- ast_cli(a->fd, "ITS A HOLDED BC:\n");
+ if (help->hold.state != MISDN_HOLD_IDLE) {
+ ast_cli(a->fd, "ITS A HELD CALL BC:\n");
ast_cli(a->fd, " --> l3_id: %x\n"
" --> dad:%s oad:%s\n"
" --> hold_port: %d\n"
help->l3id,
ast->exten,
ast->cid.cid_num,
- help->hold_info.port,
- help->hold_info.channel
+ help->hold.port,
+ help->hold.channel
);
} else {
ast_cli(a->fd, "* Channel in unknown STATE !!! Exten:%s, Callerid:%s\n", ast->exten, ast->cid.cid_num);
return -1;
}
- if (!p->bc ) {
- chan_misdn_log(1, 0, "* IND : Indication from %s\n", ast->exten);
- ast_log(LOG_WARNING, "Private Pointer but no bc ?\n");
+ if (!p->bc) {
+ if (p->hold.state == MISDN_HOLD_IDLE) {
+ chan_misdn_log(1, 0, "* IND : Indication [%d] ignored on %s\n", cond,
+ ast->name);
+ ast_log(LOG_WARNING, "Private Pointer but no bc ?\n");
+ } else {
+ chan_misdn_log(1, 0, "* IND : Indication [%d] ignored on hold %s\n",
+ cond, ast->name);
+ }
return -1;
}
- chan_misdn_log(5, p->bc->port, "* IND : Indication [%d] from %s\n", cond, ast->exten);
+ chan_misdn_log(5, p->bc->port, "* IND : Indication [%d] on %s\n\n", cond, ast->name);
switch (cond) {
case AST_CONTROL_BUSY:
break;
default:
chan_misdn_log(1, p->bc->port, " --> * Unknown Indication:%d pid:%d\n", cond, p->bc ? p->bc->pid : -1);
+ return -1;
}
return 0;
static int misdn_hangup(struct ast_channel *ast)
{
struct chan_list *p;
- struct misdn_bchannel *bc = NULL;
- const char *varcause = NULL;
-
- ast_debug(1, "misdn_hangup(%s)\n", ast->name);
-
- if (!ast || ! (p=MISDN_ASTERISK_TECH_PVT(ast) ) ) return -1;
+ struct misdn_bchannel *bc;
+ const char *var;
- if (!p) {
- chan_misdn_log(3, 0, "misdn_hangup called, without chan_list obj.\n");
- return 0 ;
+ if (!ast || !(p = MISDN_ASTERISK_TECH_PVT(ast))) {
+ return -1;
}
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
- bc = p->bc;
+ ast_debug(1, "misdn_hangup(%s)\n", ast->name);
- if (bc) {
- const char *tmp=pbx_builtin_getvar_helper(ast,"MISDN_USERUSER");
- if (tmp) {
- ast_log(LOG_NOTICE, "MISDN_USERUSER: %s\n", tmp);
- strcpy(bc->uu, tmp);
- bc->uulen=strlen(bc->uu);
+ if (p->hold.state == MISDN_HOLD_IDLE) {
+ bc = p->bc;
+ } else {
+ p->hold.state = MISDN_HOLD_DISCONNECT;
+ bc = misdn_lib_find_held_bc(p->hold.port, p->l3id);
+ if (!bc) {
+ chan_misdn_log(4, p->hold.port,
+ "misdn_hangup: Could not find held bc for (%s)\n", ast->name);
+ release_chan_early(p);
+ return 0;
}
}
- MISDN_ASTERISK_TECH_PVT(ast) = NULL;
- p->ast = NULL;
-
- if (ast->_state == AST_STATE_RESERVED ||
- p->state == MISDN_NOTHING ||
- p->state == MISDN_HOLDED ||
- p->state == MISDN_HOLD_DISCONNECT ) {
-
- CLEAN_CH:
+ if (ast->_state == AST_STATE_RESERVED || p->state == MISDN_NOTHING) {
/* between request and call */
ast_debug(1, "State Reserved (or nothing) => chanIsAvail\n");
- MISDN_ASTERISK_TECH_PVT(ast) = NULL;
-
- ast_mutex_lock(&release_lock);
- cl_dequeue_chan(&cl_te, p);
- close(p->pipe[0]);
- close(p->pipe[1]);
- ast_free(p);
- ast_mutex_unlock(&release_lock);
-
- if (bc)
+ release_chan_early(p);
+ if (bc) {
misdn_lib_release(bc);
-
+ }
return 0;
}
-
if (!bc) {
- ast_log(LOG_WARNING, "Hangup with private but no bc ? state:%s l3id:%x\n", misdn_get_ch_state(p), p->l3id);
- goto CLEAN_CH;
+ ast_log(LOG_WARNING, "Hangup with private but no bc ? state:%s l3id:%x\n",
+ misdn_get_ch_state(p), p->l3id);
+ release_chan_early(p);
+ return 0;
}
-
+ p->ast = NULL;
p->need_hangup = 0;
p->need_queue_hangup = 0;
p->need_busy = 0;
-
- if (!p->bc->nt)
+ if (!bc->nt) {
stop_bc_tones(p);
+ }
bc->out_cause = ast->hangupcause ? ast->hangupcause : AST_CAUSE_NORMAL_CLEARING;
-
- if ( (varcause = pbx_builtin_getvar_helper(ast, "HANGUPCAUSE")) ||
- (varcause = pbx_builtin_getvar_helper(ast, "PRI_CAUSE"))) {
- int tmpcause = atoi(varcause);
+
+ var = pbx_builtin_getvar_helper(ast, "HANGUPCAUSE");
+ if (!var) {
+ var = pbx_builtin_getvar_helper(ast, "PRI_CAUSE");
+ }
+ if (var) {
+ int tmpcause;
+
+ tmpcause = atoi(var);
bc->out_cause = tmpcause ? tmpcause : AST_CAUSE_NORMAL_CLEARING;
}
-
- chan_misdn_log(1, bc->port, "* IND : HANGUP\tpid:%d ctx:%s dad:%s oad:%s State:%s\n", p->bc ? p->bc->pid : -1, ast->context, ast->exten, ast->cid.cid_num, misdn_get_ch_state(p));
+
+ var = pbx_builtin_getvar_helper(ast, "MISDN_USERUSER");
+ if (var) {
+ ast_log(LOG_NOTICE, "MISDN_USERUSER: %s\n", var);
+ ast_copy_string(bc->uu, var, sizeof(bc->uu));
+ bc->uulen = strlen(bc->uu);
+ }
+
+ chan_misdn_log(1, bc->port,
+ "* IND : HANGUP\tpid:%d ctx:%s dad:%s oad:%s State:%s\n",
+ bc->pid,
+ ast->context,
+ ast->exten,
+ ast->cid.cid_num,
+ misdn_get_ch_state(p));
chan_misdn_log(3, bc->port, " --> l3id:%x\n", p->l3id);
chan_misdn_log(3, bc->port, " --> cause:%d\n", bc->cause);
chan_misdn_log(2, bc->port, " --> out_cause:%d\n", bc->out_cause);
- chan_misdn_log(2, bc->port, " --> state:%s\n", misdn_get_ch_state(p));
switch (p->state) {
case MISDN_INCOMING_SETUP:
- p->state = MISDN_CLEANING;
- /* This is the only place in misdn_hangup, where we
- * can call release_chan, else it might create lot's of trouble
- * */
+ /*
+ * This is the only place in misdn_hangup, where we
+ * can call release_chan, else it might create a lot of trouble.
+ */
ast_log(LOG_NOTICE, "release channel, in INCOMING_SETUP state.. no other events happened\n");
- release_chan(bc);
- misdn_lib_send_event( bc, EVENT_RELEASE_COMPLETE);
- break;
- case MISDN_HOLDED:
+ release_chan(p, bc);
+ misdn_lib_send_event(bc, EVENT_RELEASE_COMPLETE);
+ return 0;
case MISDN_DIALING:
- start_bc_tones(p);
- hanguptone_indicate(p);
-
- p->state=MISDN_CLEANING;
- if (bc->need_disconnect)
- misdn_lib_send_event( bc, EVENT_DISCONNECT);
+ if (p->hold.state == MISDN_HOLD_IDLE) {
+ start_bc_tones(p);
+ hanguptone_indicate(p);
+ }
+
+ p->state = MISDN_CLEANING;
+ if (bc->need_disconnect) {
+ misdn_lib_send_event(bc, EVENT_DISCONNECT);
+ }
break;
case MISDN_CALLING_ACKNOWLEDGE:
- start_bc_tones(p);
- hanguptone_indicate(p);
-
- if (bc->need_disconnect)
- misdn_lib_send_event( bc, EVENT_DISCONNECT);
+ if (p->hold.state == MISDN_HOLD_IDLE) {
+ start_bc_tones(p);
+ hanguptone_indicate(p);
+ }
+
+ if (bc->need_disconnect) {
+ misdn_lib_send_event(bc, EVENT_DISCONNECT);
+ }
break;
-
+
case MISDN_CALLING:
case MISDN_ALERTING:
case MISDN_PROGRESS:
case MISDN_PROCEEDING:
- if (p->originator != ORG_AST)
+ if (p->originator != ORG_AST && p->hold.state == MISDN_HOLD_IDLE) {
hanguptone_indicate(p);
-
- /*p->state=MISDN_CLEANING;*/
- if (bc->need_disconnect)
- misdn_lib_send_event( bc, EVENT_DISCONNECT);
+ }
+
+ if (bc->need_disconnect) {
+ misdn_lib_send_event(bc, EVENT_DISCONNECT);
+ }
break;
case MISDN_CONNECTED:
- case MISDN_PRECONNECTED:
/* Alerting or Disconnect */
- if (p->bc->nt) {
+ if (bc->nt && p->hold.state == MISDN_HOLD_IDLE) {
start_bc_tones(p);
hanguptone_indicate(p);
- p->bc->progress_indicator = 8;
+ bc->progress_indicator = INFO_PI_INBAND_AVAILABLE;
+ }
+ if (bc->need_disconnect) {
+ misdn_lib_send_event(bc, EVENT_DISCONNECT);
}
- if (bc->need_disconnect)
- misdn_lib_send_event( bc, EVENT_DISCONNECT);
-
- /*p->state=MISDN_CLEANING;*/
break;
case MISDN_DISCONNECTED:
- if (bc->need_release)
- misdn_lib_send_event( bc, EVENT_RELEASE);
- p->state = MISDN_CLEANING; /* MISDN_HUNGUP_FROM_AST; */
+ if (bc->need_release) {
+ misdn_lib_send_event(bc, EVENT_RELEASE);
+ }
break;
- case MISDN_RELEASED:
case MISDN_CLEANING:
- p->state = MISDN_CLEANING;
- break;
+ return 0;
case MISDN_BUSY:
break;
-
- case MISDN_HOLD_DISCONNECT:
- /* need to send release here */
- chan_misdn_log(1, bc->port, " --> cause %d\n", bc->cause);
- chan_misdn_log(1, bc->port, " --> out_cause %d\n", bc->out_cause);
-
- bc->out_cause = -1;
- if (bc->need_release)
- misdn_lib_send_event(bc, EVENT_RELEASE);
- p->state = MISDN_CLEANING;
- break;
default:
if (bc->nt) {
bc->out_cause = -1;
- if (bc->need_release)
+ if (bc->need_release) {
misdn_lib_send_event(bc, EVENT_RELEASE);
- p->state = MISDN_CLEANING;
+ }
} else {
- if (bc->need_disconnect)
+ if (bc->need_disconnect) {
misdn_lib_send_event(bc, EVENT_DISCONNECT);
+ }
}
+ break;
}
p->state = MISDN_CLEANING;
-
- chan_misdn_log(3, bc->port, " --> Channel: %s hanguped new state:%s\n", ast->name, misdn_get_ch_state(p));
+ chan_misdn_log(3, bc->port, " --> Channel: %s hungup new state:%s\n", ast->name,
+ misdn_get_ch_state(p));
return 0;
}
return NULL;
}
- if (!tmp->bc && !(tmp->state == MISDN_HOLDED)) {
+ if (!tmp->bc && tmp->hold.state == MISDN_HOLD_IDLE) {
chan_misdn_log(1, 0, "misdn_read called without bc\n");
return NULL;
}
if (!ast || ! (ch = MISDN_ASTERISK_TECH_PVT(ast)) ) return -1;
- if (ch->state == MISDN_HOLDED) {
- chan_misdn_log(7, 0, "misdn_write: Returning because holded\n");
+ if (ch->hold.state != MISDN_HOLD_IDLE) {
+ chan_misdn_log(7, 0, "misdn_write: Returning because hold active\n");
return 0;
}
return 0;
}
-static int hanguptone_indicate(struct chan_list *cl)
+static void hanguptone_indicate(struct chan_list *cl)
{
misdn_lib_send_tone(cl->bc, TONE_HANGUP);
- return 0;
}
static int stop_indicate(struct chan_list *cl)
return NULL;
}
-static struct chan_list *find_holded(struct chan_list *list, struct misdn_bchannel *bc)
+static struct chan_list *find_hold_call(struct chan_list *list, struct misdn_bchannel *bc)
{
struct chan_list *help = list;
if (bc->pri) return NULL;
- chan_misdn_log(6, bc->port, "$$$ find_holded: channel:%d oad:%s dad:%s\n", bc->channel, bc->oad, bc->dad);
+ chan_misdn_log(6, bc->port, "$$$ find_hold_call: channel:%d oad:%s dad:%s\n", bc->channel, bc->oad, bc->dad);
for (;help; help = help->next) {
- chan_misdn_log(4, bc->port, "$$$ find_holded: --> holded:%d channel:%d\n", help->state==MISDN_HOLDED, help->hold_info.channel);
- if ( (help->state == MISDN_HOLDED) &&
- (help->hold_info.port == bc->port) )
+ chan_misdn_log(4, bc->port, "$$$ find_hold_call: --> hold:%d channel:%d\n", help->hold.state, help->hold.channel);
+ if (help->hold.state == MISDN_HOLD_ACTIVE && help->hold.port == bc->port)
return help;
}
- chan_misdn_log(6, bc->port, "$$$ find_chan: No channel found for oad:%s dad:%s\n", bc->oad, bc->dad);
+ chan_misdn_log(6, bc->port, "$$$ find_hold_call: No channel found for oad:%s dad:%s\n", bc->oad, bc->dad);
return NULL;
}
-static struct chan_list *find_holded_l3(struct chan_list *list, unsigned long l3_id, int w)
+static struct chan_list *find_hold_call_l3(struct chan_list *list, unsigned long l3_id)
{
struct chan_list *help = list;
for (; help; help = help->next) {
- if ( (help->state == MISDN_HOLDED) &&
- (help->l3id == l3_id)
- )
+ if (help->hold.state != MISDN_HOLD_IDLE && help->l3id == l3_id)
return help;
}
return NULL;
}
+#define TRANSFER_ON_HELD_CALL_HANGUP 1
+#if defined(TRANSFER_ON_HELD_CALL_HANGUP)
+/*!
+ * \internal
+ * \brief Find a suitable active call to go with a held call so we could try a transfer.
+ *
+ * \param list Channel list.
+ * \param bc B channel record.
+ *
+ * \return Found call record or NULL.
+ *
+ * \note There could be a possibility where we find the wrong active call to transfer.
+ * This concern is mitigated by the fact that there could be at most one other call
+ * on a PTMP BRI link to another device. Maybe the l3_id could help in locating an
+ * active call on the same TEI?
+ */
+static struct chan_list *find_hold_active_call(struct chan_list *list, struct misdn_bchannel *bc)
+{
+ for (; list; list = list->next) {
+ if (list->hold.state == MISDN_HOLD_IDLE && list->bc && list->bc->port == bc->port
+ && list->ast) {
+ switch (list->state) {
+ case MISDN_PROCEEDING:
+ case MISDN_PROGRESS:
+ case MISDN_ALERTING:
+ case MISDN_CONNECTED:
+ return list;
+ default:
+ break;
+ }
+ }
+ }
+ return NULL;
+}
+#endif /* defined(TRANSFER_ON_HELD_CALL_HANGUP) */
+
static void cl_queue_chan(struct chan_list **list, struct chan_list *chan)
{
chan_misdn_log(4, chan->bc ? chan->bc->port : 0, "* Queuing chan %p\n", chan);
return ret;
}
-static void hangup_chan(struct chan_list *ch)
+static void hangup_chan(struct chan_list *ch, struct misdn_bchannel *bc)
{
- int port = ch ? (ch->bc ? ch->bc->port : 0) : 0;
+ int port;
+
if (!ch) {
cb_log(1, 0, "Cannot hangup chan, no ch\n");
return;
}
+ port = bc->port;
cb_log(5, port, "hangup_chan called\n");
if (ch->need_hangup) {
cb_log(2, port, " --> hangup\n");
- send_cause2ast(ch->ast, ch->bc, ch);
ch->need_hangup = 0;
ch->need_queue_hangup = 0;
- if (ch->ast)
+ if (ch->ast) {
+ send_cause2ast(ch->ast, bc, ch);
ast_hangup(ch->ast);
+ }
return;
}
ch->need_queue_hangup = 0;
if (ch->ast) {
- send_cause2ast(ch->ast, ch->bc, ch);
-
- if (ch->ast)
- ast_queue_hangup_with_cause(ch->ast, ch->bc->cause);
+ send_cause2ast(ch->ast, bc, ch);
+ ast_queue_hangup_with_cause(ch->ast, bc->cause);
cb_log(2, port, " --> queue_hangup\n");
} else {
cb_log(1, port, "Cannot hangup chan, no ast\n");
}
}
-/** Isdn asks us to release channel, pendant to misdn_hangup **/
-static void release_chan(struct misdn_bchannel *bc) {
- struct ast_channel *ast=NULL;
+/*!
+ * \internal
+ * \brief ISDN asked us to release channel, pendant to misdn_hangup.
+ *
+ * \param ch Call channel record to release.
+ * \param bc Current B channel record associated with ch.
+ *
+ * \return Nothing
+ *
+ * \note ch must not be referenced after calling.
+ */
+static void release_chan(struct chan_list *ch, struct misdn_bchannel *bc)
+{
+ struct ast_channel *ast;
+
+ ch->state = MISDN_CLEANING;
ast_mutex_lock(&release_lock);
- {
- struct chan_list *ch=find_chan_by_bc(cl_te, bc);
- if (!ch) {
- chan_misdn_log(1, bc->port, "release_chan: Ch not found!\n");
- ast_mutex_unlock(&release_lock);
- return;
- }
- if (ch->ast) {
- ast = ch->ast;
- }
+ cl_dequeue_chan(&cl_te, ch);
- chan_misdn_log(5, bc->port, "release_chan: bc with l3id: %x\n", bc->l3_id);
+ chan_misdn_log(5, bc->port, "release_chan: bc with pid:%d l3id: %x\n", bc->pid, bc->l3_id);
- /*releasing jitterbuffer*/
- if (ch->jb ) {
- misdn_jb_destroy(ch->jb);
- ch->jb = NULL;
- } else {
- if (!bc->nojitter)
- chan_misdn_log(5, bc->port, "Jitterbuffer already destroyed.\n");
+ /* releasing jitterbuffer */
+ if (ch->jb) {
+ misdn_jb_destroy(ch->jb);
+ ch->jb = NULL;
+ } else {
+ if (!bc->nojitter) {
+ chan_misdn_log(5, bc->port, "Jitterbuffer already destroyed.\n");
}
+ }
- if (ch->overlap_dial) {
- if (ch->overlap_dial_task != -1) {
- misdn_tasks_remove(ch->overlap_dial_task);
- ch->overlap_dial_task = -1;
- }
- ast_mutex_destroy(&ch->overlap_tv_lock);
+ if (ch->overlap_dial) {
+ if (ch->overlap_dial_task != -1) {
+ misdn_tasks_remove(ch->overlap_dial_task);
+ ch->overlap_dial_task = -1;
}
+ ast_mutex_destroy(&ch->overlap_tv_lock);
+ }
- if (ch->originator == ORG_AST) {
- misdn_out_calls[bc->port]--;
- } else {
- misdn_in_calls[bc->port]--;
+ if (ch->originator == ORG_AST) {
+ --misdn_out_calls[bc->port];
+ } else {
+ --misdn_in_calls[bc->port];
+ }
+
+ close(ch->pipe[0]);
+ close(ch->pipe[1]);
+
+ ast = ch->ast;
+ if (ast) {
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
+ chan_misdn_log(1, bc->port,
+ "* RELEASING CHANNEL pid:%d ctx:%s dad:%s oad:%s\n",
+ bc->pid,
+ ast->context,
+ ast->exten,
+ ast->cid.cid_num);
+
+ if (ast->_state != AST_STATE_RESERVED) {
+ chan_misdn_log(3, bc->port, " --> Setting AST State to down\n");
+ ast_setstate(ast, AST_STATE_DOWN);
}
+ }
- if (ch) {
- close(ch->pipe[0]);
- close(ch->pipe[1]);
+ ast_free(ch);
- if (ast && MISDN_ASTERISK_TECH_PVT(ast)) {
- chan_misdn_log(1, bc->port, "* RELEASING CHANNEL pid:%d ctx:%s dad:%s oad:%s state: %s\n", bc ? bc->pid : -1, ast->context, ast->exten, ast->cid.cid_num, misdn_get_ch_state(ch));
- chan_misdn_log(3, bc->port, " --> * State Down\n");
- MISDN_ASTERISK_TECH_PVT(ast) = NULL;
+ ast_mutex_unlock(&release_lock);
+}
- if (ast->_state != AST_STATE_RESERVED) {
- chan_misdn_log(3, bc->port, " --> Setting AST State to down\n");
- ast_setstate(ast, AST_STATE_DOWN);
- }
- }
+/*!
+ * \internal
+ * \brief Do everything in release_chan() that makes sense without a bc.
+ *
+ * \param ch Call channel record to release.
+ *
+ * \return Nothing
+ *
+ * \note ch must not be referenced after calling.
+ */
+static void release_chan_early(struct chan_list *ch)
+{
+ struct ast_channel *ast;
- ch->state = MISDN_CLEANING;
- cl_dequeue_chan(&cl_te, ch);
+ ch->state = MISDN_CLEANING;
- ast_free(ch);
+ ast_mutex_lock(&release_lock);
+
+ cl_dequeue_chan(&cl_te, ch);
+
+ /* releasing jitterbuffer */
+ if (ch->jb) {
+ misdn_jb_destroy(ch->jb);
+ ch->jb = NULL;
+ }
+
+ if (ch->overlap_dial) {
+ if (ch->overlap_dial_task != -1) {
+ misdn_tasks_remove(ch->overlap_dial_task);
+ ch->overlap_dial_task = -1;
+ }
+ ast_mutex_destroy(&ch->overlap_tv_lock);
+ }
+
+ if (ch->hold.state != MISDN_HOLD_IDLE) {
+ if (ch->originator == ORG_AST) {
+ --misdn_out_calls[ch->hold.port];
} else {
- /* chan is already cleaned, so exiting */
+ --misdn_in_calls[ch->hold.port];
}
+ }
+
+ close(ch->pipe[0]);
+ close(ch->pipe[1]);
- ast_mutex_unlock(&release_lock);
+ ast = ch->ast;
+ if (ast) {
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
+ if (ast->_state != AST_STATE_RESERVED) {
+ ast_setstate(ast, AST_STATE_DOWN);
+ }
}
-/*** release end **/
+
+ ast_free(ch);
+
+ ast_mutex_unlock(&release_lock);
}
-static void misdn_transfer_bc(struct chan_list *tmp_ch, struct chan_list *holded_chan)
+/*!
+ * \internal
+ * \brief Attempt to transfer the active channel party to the held channel party.
+ *
+ * \param active_ch Channel currently connected.
+ * \param held_ch Channel currently on hold.
+ *
+ * \retval 0 on success.
+ * \retval -1 on error.
+ */
+static int misdn_attempt_transfer(struct chan_list *active_ch, struct chan_list *held_ch)
{
- chan_misdn_log(4, 0, "TRANSFERRING %s to %s\n", holded_chan->ast->name, tmp_ch->ast->name);
+ int retval;
+ struct ast_channel *bridged;
+
+ switch (active_ch->state) {
+ case MISDN_PROCEEDING:
+ case MISDN_PROGRESS:
+ case MISDN_ALERTING:
+ case MISDN_CONNECTED:
+ break;
+ default:
+ return -1;
+ }
- tmp_ch->state = MISDN_HOLD_DISCONNECT;
+ bridged = ast_bridged_channel(held_ch->ast);
+ if (bridged) {
+ ast_queue_control(held_ch->ast, AST_CONTROL_UNHOLD);
+ held_ch->hold.state = MISDN_HOLD_TRANSFER;
- ast_moh_stop(ast_bridged_channel(holded_chan->ast));
+ chan_misdn_log(1, held_ch->hold.port, "TRANSFERRING %s to %s\n",
+ held_ch->ast->name, active_ch->ast->name);
+ retval = ast_channel_masquerade(active_ch->ast, bridged);
+ } else {
+ /*
+ * Could not transfer. Held channel is not bridged anymore.
+ * Held party probably got tired of waiting and hung up.
+ */
+ retval = -1;
+ }
- holded_chan->state=MISDN_CONNECTED;
- /* misdn_lib_transfer(holded_chan->bc); */
- ast_channel_masquerade(holded_chan->ast, ast_bridged_channel(tmp_ch->ast));
+ return retval;
}
if (!ast_canmatch_extension(ast, ast->context, ast->exten, 1, bc->oad) || pbx_start_chan(ch) < 0) {
ast = NULL;
bc->out_cause = AST_CAUSE_UNALLOCATED;
- hangup_chan(ch);
+ hangup_chan(ch, bc);
hanguptone_indicate(ch);
if (bc->nt)
static void start_pbx(struct chan_list *ch, struct misdn_bchannel *bc, struct ast_channel *chan) {
if (pbx_start_chan(ch) < 0) {
- hangup_chan(ch);
+ hangup_chan(ch, bc);
chan_misdn_log(-1, bc->port, "ast_pbx_start returned <0 in SETUP\n");
if (bc->nt) {
hanguptone_indicate(ch);
static enum event_response_e
cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
{
+ struct chan_list *held_ch;
struct chan_list *ch = find_chan_by_bc(cl_te, bc);
if (event != EVENT_BCHAN_DATA && event != EVENT_TONE_GENERATE) { /* Debug Only Non-Bchan */
switch(event) {
case EVENT_SETUP:
case EVENT_DISCONNECT:
+ case EVENT_RELEASE:
+ case EVENT_RELEASE_COMPLETE:
case EVENT_PORT_ALARM:
case EVENT_RETRIEVE:
case EVENT_NEW_BC:
case EVENT_FACILITY:
break;
- case EVENT_RELEASE_COMPLETE:
- chan_misdn_log(1, bc->port, " --> no Ch, so we've already released.\n");
- break;
case EVENT_CLEANUP:
case EVENT_TONE_GENERATE:
case EVENT_BCHAN_DATA:
case EVENT_NEW_BC:
if (!ch) {
- ch = find_holded(cl_te,bc);
+ ch = find_hold_call(cl_te,bc);
}
if (!ch) {
/* Check for Pickup Request first */
if (!strcmp(ch->ast->exten, ast_pickup_ext())) {
if (ast_pickup_call(ch->ast)) {
- hangup_chan(ch);
+ hangup_chan(ch, bc);
} else {
struct ast_channel *chan = ch->ast;
ch->state = MISDN_CALLING_ACKNOWLEDGE;
ast_setstate(chan, AST_STATE_DOWN);
- hangup_chan(ch);
+ hangup_chan(ch, bc);
ch->ast = NULL;
break;
}
ch->state = MISDN_INCOMING_SETUP;
}
if (ast_pickup_call(chan)) {
- hangup_chan(ch);
+ hangup_chan(ch, bc);
} else {
ch->state = MISDN_CALLING_ACKNOWLEDGE;
ast_setstate(chan, AST_STATE_DOWN);
- hangup_chan(ch);
+ hangup_chan(ch, bc);
ch->ast = NULL;
break;
}
case EVENT_DISCONNECT:
/*we might not have an ch->ast ptr here anymore*/
if (ch) {
- struct chan_list *holded_ch = find_holded(cl_te, bc);
-
chan_misdn_log(3, bc->port, " --> org:%d nt:%d, inbandavail:%d state:%d\n", ch->originator, bc->nt, misdn_inband_avail(bc), ch->state);
if (ch->originator == ORG_AST && !bc->nt && misdn_inband_avail(bc) && ch->state != MISDN_CONNECTED) {
/* If there's inband information available (e.g. a
break;
}
- /*Check for holded channel, to implement transfer*/
- if (holded_ch && holded_ch != ch && ch->ast && ch->state == MISDN_CONNECTED) {
- cb_log(1, bc->port, " --> found holded ch\n");
- misdn_transfer_bc(ch, holded_ch) ;
- }
-
bc->need_disconnect = 0;
-
stop_bc_tones(ch);
- hangup_chan(ch);
-#if 0
+
+ /* Check for held channel, to implement transfer */
+ held_ch = find_hold_call(cl_te, bc);
+ if (!held_ch || !ch->ast || misdn_attempt_transfer(ch, held_ch)) {
+ hangup_chan(ch, bc);
+ }
} else {
- ch = find_holded_l3(cl_te, bc->l3_id,1);
- if (ch) {
- hangup_chan(ch);
+ held_ch = find_hold_call_l3(cl_te, bc->l3_id);
+ if (held_ch && held_ch->hold.state == MISDN_HOLD_ACTIVE) {
+ bc->need_disconnect = 0;
+
+#if defined(TRANSFER_ON_HELD_CALL_HANGUP)
+ /*
+ * Some phones disconnect the held call and the active call at the
+ * same time to do the transfer. Unfortunately, either call could
+ * be disconnected first.
+ */
+ ch = find_hold_active_call(cl_te, bc);
+ if (!ch || misdn_attempt_transfer(ch, held_ch)) {
+ held_ch->hold.state = MISDN_HOLD_DISCONNECT;
+ hangup_chan(held_ch, bc);
+ }
+#else
+ hangup_chan(held_ch, bc);
+#endif /* defined(TRANSFER_ON_HELD_CALL_HANGUP) */
}
-#endif
}
bc->out_cause = -1;
if (bc->need_release)
break;
case EVENT_RELEASE:
- {
- bc->need_disconnect = 0;
- bc->need_release = 0;
-
- hangup_chan(ch);
- release_chan(bc);
+ if (!ch) {
+ ch = find_hold_call_l3(cl_te, bc->l3_id);
+ if (!ch) {
+ chan_misdn_log(1, bc->port,
+ " --> no Ch, so we've already released. (%s)\n",
+ manager_isdn_get_info(event));
+ return -1;
+ }
}
+
+ bc->need_disconnect = 0;
+ bc->need_release = 0;
+
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
break;
case EVENT_RELEASE_COMPLETE:
- {
+ if (!ch) {
+ ch = find_hold_call_l3(cl_te, bc->l3_id);
+ if (!ch) {
+ chan_misdn_log(1, bc->port,
+ " --> no Ch, so we've already released. (%s)\n",
+ manager_isdn_get_info(event));
+ break;
+ }
+ }
+
bc->need_disconnect = 0;
bc->need_release = 0;
bc->need_release_complete = 0;
stop_bc_tones(ch);
- hangup_chan(ch);
-
- if (ch)
- ch->state = MISDN_CLEANING;
-
- release_chan(bc);
- }
- break;
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
+ break;
case EVENT_BCHAN_ERROR:
case EVENT_CLEANUP:
{
break;
}
- hangup_chan(ch);
- release_chan(bc);
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
}
break;
chan_misdn_log(0, bc->port, "Write returned <=0 (err=%s) --> hanging up channel\n", strerror(errno));
stop_bc_tones(ch);
- hangup_chan(ch);
- release_chan(bc);
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
}
} else {
chan_misdn_log(1, bc->port, "Write Pipe full!\n");
/** Supplementary Services **/
/****************************/
case EVENT_RETRIEVE:
- {
- struct ast_channel *hold_ast;
-
- if (!ch) {
- chan_misdn_log(4, bc->port, " --> no CH, searching in holded\n");
- ch = find_holded_l3(cl_te, bc->l3_id, 1);
- }
-
if (!ch) {
- ast_log(LOG_WARNING, "Found no Holded channel, cannot Retrieve\n");
- misdn_lib_send_event(bc, EVENT_RETRIEVE_REJECT);
- break;
+ chan_misdn_log(4, bc->port, " --> no CH, searching for held call\n");
+ ch = find_hold_call_l3(cl_te, bc->l3_id);
+ if (!ch || ch->hold.state != MISDN_HOLD_ACTIVE) {
+ ast_log(LOG_WARNING, "No held call found, cannot Retrieve\n");
+ misdn_lib_send_event(bc, EVENT_RETRIEVE_REJECT);
+ break;
+ }
}
- /*remember the channel again*/
+ /* remember the channel again */
ch->bc = bc;
- ch->state = MISDN_CONNECTED;
- ch->hold_info.port = 0;
- ch->hold_info.channel = 0;
+ ch->hold.state = MISDN_HOLD_IDLE;
+ ch->hold.port = 0;
+ ch->hold.channel = 0;
- hold_ast = ast_bridged_channel(ch->ast);
-
- if (hold_ast) {
- ast_moh_stop(hold_ast);
- }
+ ast_queue_control(ch->ast, AST_CONTROL_UNHOLD);
if (misdn_lib_send_event(bc, EVENT_RETRIEVE_ACKNOWLEDGE) < 0) {
chan_misdn_log(4, bc->port, " --> RETRIEVE_ACK failed\n");
misdn_lib_send_event(bc, EVENT_RETRIEVE_REJECT);
}
- }
- break;
+ break;
case EVENT_HOLD:
{
int hold_allowed;
- struct ast_channel *bridged = ast_bridged_channel(ch->ast);
+ struct ast_channel *bridged;
misdn_cfg_get(bc->port, MISDN_CFG_HOLD_ALLOWED, &hold_allowed, sizeof(hold_allowed));
-
if (!hold_allowed) {
-
chan_misdn_log(-1, bc->port, "Hold not allowed this port.\n");
misdn_lib_send_event(bc, EVENT_HOLD_REJECT);
break;
}
+ bridged = ast_bridged_channel(ch->ast);
if (bridged) {
chan_misdn_log(2, bc->port, "Bridge Partner is of type: %s\n", bridged->tech->type);
- ch->state = MISDN_HOLDED;
ch->l3id = bc->l3_id;
-
- misdn_lib_send_event(bc, EVENT_HOLD_ACKNOWLEDGE);
-
- /* XXX This should queue an AST_CONTROL_HOLD frame on this channel
- * instead of starting moh on the bridged channel directly */
- ast_moh_start(bridged, NULL, NULL);
- /*forget the channel now*/
+ /* forget the channel now */
ch->bc = NULL;
- ch->hold_info.port = bc->port;
- ch->hold_info.channel = bc->channel;
+ ch->hold.state = MISDN_HOLD_ACTIVE;
+ ch->hold.port = bc->port;
+ ch->hold.channel = bc->channel;
+ ast_queue_control(ch->ast, AST_CONTROL_HOLD);
+
+ misdn_lib_send_event(bc, EVENT_HOLD_ACKNOWLEDGE);
} else {
misdn_lib_send_event(bc, EVENT_HOLD_REJECT);
chan_misdn_log(0, bc->port, "We aren't bridged to anybody\n");
if (!bc->dummy) {
stop_bc_tones(ch);
- release_chan(bc);
+ release_chan(ch, bc);
}
break;
projects / thirdparty / asterisk.git / commitdiff
