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authorrmudgett <rmudgett@f38db490-d61c-443f-a65b-d21fe96a405b>2009-07-14 17:01:48 +0000
committerrmudgett <rmudgett@f38db490-d61c-443f-a65b-d21fe96a405b>2009-07-14 17:01:48 +0000
commit682207e89720b041c91c7eaa8bde0b197662ed1e (patch)
treea78bbb66d6452319b9e79cff4da7f13e31abc763 /channels/chan_misdn.c
parentc84930e93790ae6aa9b6fc3910402c342e024dee (diff)
Merged revisions 206487 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r206487 | rmudgett | 2009-07-14 11:44:47 -0500 (Tue, 14 Jul 2009) | 28 lines Fixes several call transfer issues with chan_misdn. * issue #14355 - Crash if attempt to transfer a call to an application. Masquerade the other pair of the four asterisk channels involved in the two calls. The held call already must be a bridged call (not an applicaton) or it would have been rejected. * issue #14692 - Held calls are not automatically cleared after transfer. Allow the core to initate disconnect of held calls to the ISDN port. This also fixes a similar case where the party on hold hangs up before being transferred or taken off hold. * JIRA ABE-1903 - Orphaned held calls left in music-on-hold. Do not simply block passing the hangup event on held calls to asterisk core. * Fixed to allow held calls to be transferred to ringing calls. Previously, held calls could only be transferred to connected calls. * Eliminated unused call states to simplify hangup code. * Eliminated most uses of "holded" because it is not a word. (closes issue #14355) (closes issue #14692) Reported by: sodom Patches: misdn_xfer_v14_r205839.patch uploaded by rmudgett (license 664) Tested by: rmudgett ........ git-svn-id: http://svn.digium.com/svn/asterisk/trunk@206489 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'channels/chan_misdn.c')
-rw-r--r--channels/chan_misdn.c597
1 files changed, 358 insertions, 239 deletions
diff --git a/channels/chan_misdn.c b/channels/chan_misdn.c
index 5be536abf..3a5a5b4f1 100644
--- a/channels/chan_misdn.c
+++ b/channels/chan_misdn.c
@@ -305,15 +305,8 @@ enum misdn_chan_state {
MISDN_ALERTING, /*!< when Alerting */
MISDN_BUSY, /*!< when BUSY */
MISDN_CONNECTED, /*!< when connected */
- MISDN_PRECONNECTED, /*!< when connected (Noone sets this state) */
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, /*!< when on hold */
- MISDN_HOLD_DISCONNECT, /*!< when on hold */
};
/*! Asterisk created the channel (outgoing call) */
@@ -321,15 +314,25 @@ enum misdn_chan_state {
/*! mISDN created the channel (incoming call) */
#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
+ * \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;
@@ -501,13 +504,13 @@ struct chan_list {
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
/*!
- * \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.
+ * \note Used to find the HELD channel call record when retrieving a call.
*/
unsigned int l3id;
@@ -662,7 +665,6 @@ static void chan_misdn_log(int level, int port, char *tmpl, ...)
static struct ast_channel *misdn_new(struct chan_list *cl, int state, char *exten, char *callerid, int format, const char *linkedid, 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
@@ -702,12 +704,13 @@ static struct chan_list *find_chan_by_bc(struct chan_list *list, struct misdn_bc
static struct chan_list *find_chan_by_pid(struct chan_list *list, int pid);
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);
#if defined(AST_MISDN_ENHANCEMENTS)
static const char misdn_command_name[] = "misdn_command";
@@ -4039,15 +4042,8 @@ static const struct state_struct state_array[] = {
{ 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 */
/* *INDENT-ON* */
};
@@ -4218,8 +4214,8 @@ static char *handle_cli_misdn_show_channels(struct ast_cli_entry *e, int cmd, st
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"
" --> dialed:%s\n"
" --> caller:\"%s\" <%s>\n"
@@ -4229,8 +4225,8 @@ static char *handle_cli_misdn_show_channels(struct ast_cli_entry *e, int cmd, st
ast->exten,
ast->cid.cid_name ? ast->cid.cid_name : "",
ast->cid.cid_num ? 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);
@@ -6662,12 +6658,18 @@ static int misdn_indication(struct ast_channel *ast, int cond, const void *data,
}
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->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:
@@ -6778,7 +6780,7 @@ static int misdn_indication(struct ast_channel *ast, int cond, const void *data,
break;
default:
chan_misdn_log(1, p->bc->port, " --> * Unknown Indication:%d pid:%d\n", cond, p->bc->pid);
- break;
+ return -1;
}
return 0;
@@ -6787,91 +6789,79 @@ static int misdn_indication(struct ast_channel *ast, int cond, const void *data,
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);
+ struct misdn_bchannel *bc;
+ const char *var;
if (!ast || !(p = MISDN_ASTERISK_TECH_PVT(ast))) {
return -1;
}
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
- if (!p) {
- chan_misdn_log(3, 0, "misdn_hangup called, without chan_list obj.\n");
- return 0 ;
- }
-
- bc = p->bc;
-
- if (bc) {
- const char *tmp;
+ ast_debug(1, "misdn_hangup(%s)\n", ast->name);
- ast_channel_lock(ast);
- 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;
}
- ast_channel_unlock(ast);
}
- 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);
-
+ 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;
ast_channel_lock(ast);
- 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;
}
+
+ 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);
+ }
ast_channel_unlock(ast);
chan_misdn_log(1, bc->port,
"* IND : HANGUP\tpid:%d context:%s dialed:%s caller:\"%s\" <%s> State:%s\n",
- p->bc ? p->bc->pid : -1,
+ bc->pid,
ast->context,
ast->exten,
ast->cid.cid_name ? ast->cid.cid_name : "",
@@ -6883,27 +6873,29 @@ CLEAN_CH:
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);
+ release_chan(p, bc);
misdn_lib_send_event(bc, EVENT_RELEASE_COMPLETE);
- break;
- case MISDN_HOLDED:
+ return 0;
case MISDN_DIALING:
- start_bc_tones(p);
- hanguptone_indicate(p);
+ 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 (p->hold.state == MISDN_HOLD_IDLE) {
+ start_bc_tones(p);
+ hanguptone_indicate(p);
+ }
if (bc->need_disconnect) {
misdn_lib_send_event(bc, EVENT_DISCONNECT);
@@ -6914,79 +6906,53 @@ CLEAN_CH:
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);
}
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 = INFO_PI_INBAND_AVAILABLE;
+ bc->progress_indicator = INFO_PI_INBAND_AVAILABLE;
}
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; */
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) {
misdn_lib_send_event(bc, EVENT_RELEASE);
}
- p->state = MISDN_CLEANING;
} else {
if (bc->need_disconnect) {
misdn_lib_send_event(bc, EVENT_DISCONNECT);
}
}
+ break;
}
p->state = MISDN_CLEANING;
-
-#if defined(AST_MISDN_ENHANCEMENTS)
- if (p->peer) {
- ao2_ref(p->peer, -1);
- p->peer = NULL;
- }
-#endif /* AST_MISDN_ENHANCEMENTS */
-
- 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;
}
@@ -7082,7 +7048,7 @@ static struct ast_frame *misdn_read(struct ast_channel *ast)
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;
}
@@ -7164,8 +7130,8 @@ static int misdn_write(struct ast_channel *ast, struct ast_frame *frame)
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;
}
@@ -7398,10 +7364,9 @@ static int dialtone_indicate(struct chan_list *cl)
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)
@@ -7903,7 +7868,7 @@ static struct chan_list *find_chan_by_pid(struct chan_list *list, int pid)
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;
@@ -7911,20 +7876,19 @@ static struct chan_list *find_holded(struct chan_list *list, struct misdn_bchann
return NULL;
}
- chan_misdn_log(6, bc->port, "$$$ find_holded: channel:%d dialed:%s caller:\"%s\" <%s>\n",
+ chan_misdn_log(6, bc->port, "$$$ find_hold_call: channel:%d dialed:%s caller:\"%s\" <%s>\n",
bc->channel,
bc->dialed.number,
bc->caller.name,
bc->caller.number);
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,
- "$$$ find_holded: No channel found for dialed:%s caller:\"%s\" <%s>\n",
+ "$$$ find_hold_call: No channel found for dialed:%s caller:\"%s\" <%s>\n",
bc->dialed.number,
bc->caller.name,
bc->caller.number);
@@ -7933,13 +7897,12 @@ static struct chan_list *find_holded(struct chan_list *list, struct misdn_bchann
}
-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;
}
}
@@ -7947,6 +7910,42 @@ static struct chan_list *find_holded_l3(struct chan_list *list, unsigned long l3
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);
@@ -8009,7 +8008,7 @@ static int pbx_start_chan(struct chan_list *ch)
return ret;
}
-static void hangup_chan(struct chan_list *ch)
+static void hangup_chan(struct chan_list *ch, struct misdn_bchannel *bc)
{
int port;
@@ -8018,15 +8017,15 @@ static void hangup_chan(struct chan_list *ch)
return;
}
- port = ch->bc ? ch->bc->port : 0;
+ 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) {
+ send_cause2ast(ch->ast, bc, ch);
ast_hangup(ch->ast);
}
return;
@@ -8038,33 +8037,43 @@ static void hangup_chan(struct chan_list *ch)
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)
+/*!
+ * \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 chan_list *ch;
struct ast_channel *ast;
+ ch->state = MISDN_CLEANING;
+
ast_mutex_lock(&release_lock);
- 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 defined(AST_MISDN_ENHANCEMENTS)
+ if (ch->peer) {
+ ao2_ref(ch->peer, -1);
+ ch->peer = NULL;
}
+#endif /* AST_MISDN_ENHANCEMENTS */
+
+ 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) {
@@ -8094,17 +8103,15 @@ static void release_chan(struct misdn_bchannel *bc)
close(ch->pipe[1]);
ast = ch->ast;
- if (ast && MISDN_ASTERISK_TECH_PVT(ast)) {
+ if (ast) {
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
chan_misdn_log(1, bc->port,
- "* RELEASING CHANNEL pid:%d context:%s dialed:%s caller:\"%s\" <%s> state: %s\n",
+ "* RELEASING CHANNEL pid:%d context:%s dialed:%s caller:\"%s\" <%s>\n",
bc->pid,
ast->context,
ast->exten,
ast->cid.cid_name ? ast->cid.cid_name : "",
- ast->cid.cid_num ? 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->cid.cid_num ? ast->cid.cid_num : "");
if (ast->_state != AST_STATE_RESERVED) {
chan_misdn_log(3, bc->port, " --> Setting AST State to down\n");
@@ -8112,25 +8119,118 @@ static void release_chan(struct misdn_bchannel *bc)
}
}
+ ast_free(ch);
+
+ ast_mutex_unlock(&release_lock);
+}
+
+/*!
+ * \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;
+
+ ast_mutex_lock(&release_lock);
+
+#if defined(AST_MISDN_ENHANCEMENTS)
+ if (ch->peer) {
+ ao2_ref(ch->peer, -1);
+ ch->peer = NULL;
+ }
+#endif /* AST_MISDN_ENHANCEMENTS */
+
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 {
+ --misdn_in_calls[ch->hold.port];
+ }
+ }
+
+ close(ch->pipe[0]);
+ close(ch->pipe[1]);
+
+ ast = ch->ast;
+ if (ast) {
+ MISDN_ASTERISK_TECH_PVT(ast) = NULL;
+ if (ast->_state != AST_STATE_RESERVED) {
+ ast_setstate(ast, AST_STATE_DOWN);
+ }
+ }
+
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;
- tmp_ch->state = MISDN_HOLD_DISCONNECT;
+ switch (active_ch->state) {
+ case MISDN_PROCEEDING:
+ case MISDN_PROGRESS:
+ case MISDN_ALERTING:
+ case MISDN_CONNECTED:
+ break;
+ default:
+ return -1;
+ }
- ast_moh_stop(ast_bridged_channel(holded_chan->ast));
+ 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;
- holded_chan->state = MISDN_CONNECTED;
- /* misdn_lib_transfer(holded_chan->bc); */
- ast_channel_masquerade(holded_chan->ast, ast_bridged_channel(tmp_ch->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;
+ }
+
+ return retval;
}
@@ -8169,7 +8269,7 @@ static void do_immediate_setup(struct misdn_bchannel *bc, struct chan_list *ch,
if (!ast_canmatch_extension(ast, ast->context, ast->exten, 1, bc->caller.number) || pbx_start_chan(ch) < 0) {
ast = NULL;
bc->out_cause = AST_CAUSE_UNALLOCATED;
- hangup_chan(ch);
+ hangup_chan(ch, bc);
hanguptone_indicate(ch);
misdn_lib_send_event(bc, bc->nt ? EVENT_RELEASE_COMPLETE : EVENT_DISCONNECT);
@@ -8351,7 +8451,7 @@ int add_out_calls(int port)
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);
@@ -9299,6 +9399,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
#if defined(AST_MISDN_ENHANCEMENTS)
struct misdn_cc_record *cc_record;
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
+ 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) {
@@ -9327,15 +9428,14 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
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:
case EVENT_REGISTER:
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:
@@ -9396,7 +9496,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
case EVENT_NEW_BC:
if (!ch) {
- ch = find_holded(cl_te,bc);
+ ch = find_hold_call(cl_te,bc);
}
if (!ch) {
@@ -9458,10 +9558,10 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
/* 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 {
ch->state = MISDN_CALLING_ACKNOWLEDGE;
- hangup_chan(ch);
+ hangup_chan(ch, bc);
ch->ast = NULL;
break;
}
@@ -9681,10 +9781,10 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
ch->state = MISDN_INCOMING_SETUP;
}
if (ast_pickup_call(chan)) {
- hangup_chan(ch);
+ hangup_chan(ch, bc);
} else {
ch->state = MISDN_CALLING_ACKNOWLEDGE;
- hangup_chan(ch);
+ hangup_chan(ch, bc);
ch->ast = NULL;
break;
}
@@ -9988,8 +10088,6 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
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);
-
if (bc->fac_in.Function != Fac_None) {
misdn_facility_ie_handler(event, bc, ch);
}
@@ -10016,23 +10114,40 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
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) {
+ if (bc->fac_in.Function != Fac_None) {
+ misdn_facility_ie_handler(event, bc, held_ch);
+ }
+
+ if (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) {
@@ -10040,6 +10155,15 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
}
break;
case EVENT_RELEASE:
+ 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;
+ }
+ }
if (bc->fac_in.Function != Fac_None) {
misdn_facility_ie_handler(event, bc, ch);
}
@@ -10047,12 +10171,12 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
bc->need_disconnect = 0;
bc->need_release = 0;
- hangup_chan(ch);
- release_chan(bc);
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
break;
case EVENT_RELEASE_COMPLETE:
- if (bc->fac_in.Function != Fac_None) {
- misdn_facility_ie_handler(event, bc, ch);
+ if (!ch) {
+ ch = find_hold_call_l3(cl_te, bc->l3_id);
}
bc->need_disconnect = 0;
@@ -10060,11 +10184,15 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
bc->need_release_complete = 0;
if (ch) {
+ if (bc->fac_in.Function != Fac_None) {
+ misdn_facility_ie_handler(event, bc, ch);
+ }
+
stop_bc_tones(ch);
- hangup_chan(ch);
- ch->state = MISDN_CLEANING;
-#if defined(AST_MISDN_ENHANCEMENTS)
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
} else {
+#if defined(AST_MISDN_ENHANCEMENTS)
/*
* A call-completion signaling link established with
* REGISTER does not have a struct chan_list record
@@ -10078,9 +10206,11 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
}
AST_LIST_UNLOCK(&misdn_cc_records_db);
#endif /* defined(AST_MISDN_ENHANCEMENTS) */
- }
- release_chan(bc);
+ chan_misdn_log(1, bc->port,
+ " --> no Ch, so we've already released. (%s)\n",
+ manager_isdn_get_info(event));
+ }
break;
case EVENT_BCHAN_ERROR:
case EVENT_CLEANUP:
@@ -10094,8 +10224,8 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
break;
}
- hangup_chan(ch);
- release_chan(bc);
+ hangup_chan(ch, bc);
+ release_chan(ch, bc);
break;
case EVENT_TONE_GENERATE:
{
@@ -10181,8 +10311,8 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
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");
@@ -10237,67 +10367,56 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
/** 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;
- hold_ast = ast_bridged_channel(ch->ast);
+ ch->hold.state = MISDN_HOLD_IDLE;
+ ch->hold.port = 0;
+ ch->hold.channel = 0;
- 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;
- }
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);
+ /* forget the channel now */
+ ch->bc = NULL;
+ ch->hold.state = MISDN_HOLD_ACTIVE;
+ ch->hold.port = bc->port;
+ ch->hold.channel = bc->channel;
- /* 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);
+ ast_queue_control(ch->ast, AST_CONTROL_HOLD);
- /*forget the channel now*/
- ch->bc = NULL;
- ch->hold_info.port = bc->port;
- ch->hold_info.channel = bc->channel;
+ 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");
@@ -10379,7 +10498,7 @@ cb_events(enum event_e event, struct misdn_bchannel *bc, void *user_data)
case EVENT_RESTART:
if (!bc->dummy) {
stop_bc_tones(ch);
- release_chan(bc);
+ release_chan(ch, bc);
}
break;
default: