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core/dial: New channel variable FORWARDERNAME

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Added a new channel variable FORWARDERNAME which indicates which
channel was responsible for a forwarding requests received on dial attempt.

Fixed a bug in the app_queue: FORWARD_CONTEXT is not used.

ASTERISK-26059 #close

Change-Id: I34e93e8c1b5e17776a77b319703c48c8ca48e7b2
This commit is contained in:
Alexei Gradinari
2016-05-25 11:34:42 -04:00
parent a42bea3314
commit 2de58c6d01
6 changed files with 32 additions and 5 deletions
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5
CHANGES
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@@ -12,6 +12,11 @@
--- Functionality changes from Asterisk 13.9.0 to Asterisk 13.10.0 -----------
------------------------------------------------------------------------------
Core
------------------
* A channel variable FORWARDERNAME is now set which indicates which channel
was responsible for a forwarding requests received on dial attempt.
func_odbc
------------------
* Added new global option "single_db_connection".

3
apps/app_dial.c
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@@ -834,6 +834,7 @@ static void do_forward(struct chanlist *o, struct cause_args *num,
struct ast_party_id *forced_clid, struct ast_party_id *stored_clid)
{
char tmpchan[256];
char forwarder[AST_CHANNEL_NAME];
struct ast_channel *original = o->chan;
struct ast_channel *c = o->chan; /* the winner */
struct ast_channel *in = num->chan; /* the input channel */
@@ -842,6 +843,7 @@ static void do_forward(struct chanlist *o, struct cause_args *num,
int cause;
struct ast_party_caller caller;
ast_copy_string(forwarder, ast_channel_name(c), sizeof(forwarder));
ast_copy_string(tmpchan, ast_channel_call_forward(c), sizeof(tmpchan));
if ((stuff = strchr(tmpchan, '/'))) {
*stuff++ = '\0';
@@ -893,6 +895,7 @@ static void do_forward(struct chanlist *o, struct cause_args *num,
ast_channel_lock_both(in, o->chan);
ast_channel_inherit_variables(in, o->chan);
ast_channel_datastore_inherit(in, o->chan);
pbx_builtin_setvar_helper(o->chan, "FORWARDERNAME", forwarder);
ast_max_forwards_decrement(o->chan);
ast_channel_unlock(in);
ast_channel_unlock(o->chan);

9
apps/app_queue.c
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@@ -4827,16 +4827,22 @@ static struct callattempt *wait_for_answer(struct queue_ent *qe, struct callatte
continue;
} else if (!ast_strlen_zero(ast_channel_call_forward(o->chan))) {
struct ast_channel *original = o->chan;
char forwarder[AST_CHANNEL_NAME];
char tmpchan[256];
char *stuff;
char *tech;
ast_copy_string(tmpchan, ast_channel_call_forward(o->chan), sizeof(tmpchan));
ast_copy_string(forwarder, ast_channel_name(o->chan), sizeof(forwarder));
if ((stuff = strchr(tmpchan, '/'))) {
*stuff++ = '\0';
tech = tmpchan;
} else {
snprintf(tmpchan, sizeof(tmpchan), "%s@%s", ast_channel_call_forward(o->chan), ast_channel_context(o->chan));
const char *forward_context;
ast_channel_lock(o->chan);
forward_context = pbx_builtin_getvar_helper(o->chan, "FORWARD_CONTEXT");
snprintf(tmpchan, sizeof(tmpchan), "%s@%s", ast_channel_call_forward(o->chan), forward_context ? forward_context : ast_channel_context(o->chan));
ast_channel_unlock(o->chan);
stuff = tmpchan;
tech = "Local";
}
@@ -4868,6 +4874,7 @@ static struct callattempt *wait_for_answer(struct queue_ent *qe, struct callatte
ast_channel_lock_both(o->chan, in);
ast_channel_inherit_variables(in, o->chan);
ast_channel_datastore_inherit(in, o->chan);
pbx_builtin_setvar_helper(o->chan, "FORWARDERNAME", forwarder);
ast_max_forwards_decrement(o->chan);
if (o->pending_connected_update) {

3
main/bridge_channel.c
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@@ -2162,9 +2162,10 @@ int bridge_channel_internal_push_full(struct ast_bridge_channel *bridge_channel,
ast_bridge_publish_enter(bridge, bridge_channel->chan, swap ? swap->chan : NULL);
/* Clear any BLINDTRANSFER and ATTENDEDTRANSFER since the transfer has completed. */
/* Clear any BLINDTRANSFER,ATTENDEDTRANSFER and FORWARDERNAME since the transfer has completed. */
pbx_builtin_setvar_helper(bridge_channel->chan, "BLINDTRANSFER", NULL);
pbx_builtin_setvar_helper(bridge_channel->chan, "ATTENDEDTRANSFER", NULL);
pbx_builtin_setvar_helper(bridge_channel->chan, "FORWARDERNAME", NULL);
/* Wake up the bridge channel thread to reevaluate any interval timers. */
ast_queue_frame(bridge_channel->chan, &ast_null_frame);

3
main/channel.c
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@@ -5663,6 +5663,7 @@ static void call_forward_inherit(struct ast_channel *new_chan, struct ast_channe
struct ast_channel *ast_call_forward(struct ast_channel *caller, struct ast_channel *orig, int *timeout, struct ast_format_cap *cap, struct outgoing_helper *oh, int *outstate)
{
char tmpchan[256];
char forwarder[AST_CHANNEL_NAME];
struct ast_channel *new_chan = NULL;
char *data, *type;
int cause = 0;
@@ -5670,6 +5671,7 @@ struct ast_channel *ast_call_forward(struct ast_channel *caller, struct ast_chan
/* gather data and request the new forward channel */
ast_copy_string(tmpchan, ast_channel_call_forward(orig), sizeof(tmpchan));
ast_copy_string(forwarder, ast_channel_name(orig), sizeof(forwarder));
if ((data = strchr(tmpchan, '/'))) {
*data++ = '\0';
type = tmpchan;
@@ -5713,6 +5715,7 @@ struct ast_channel *ast_call_forward(struct ast_channel *caller, struct ast_chan
ast_set_flag(ast_channel_flags(new_chan), AST_FLAG_ORIGINATED);
ast_channel_lock_both(orig, new_chan);
pbx_builtin_setvar_helper(new_chan, "FORWARDERNAME", forwarder);
ast_party_connected_line_copy(ast_channel_connected(new_chan), ast_channel_connected(orig));
ast_party_redirecting_copy(ast_channel_redirecting(new_chan), ast_channel_redirecting(orig));
ast_channel_req_accountcodes(new_chan, orig, AST_CHANNEL_REQUESTOR_REPLACEMENT);

14
main/dial.c
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@@ -411,16 +411,24 @@ int ast_dial_prerun(struct ast_dial *dial, struct ast_channel *chan, struct ast_
}
/*! \brief Helper function that does the beginning dialing per-appended channel */
static int begin_dial_channel(struct ast_dial_channel *channel, struct ast_channel *chan, int async, const char *predial_string)
static int begin_dial_channel(struct ast_dial_channel *channel, struct ast_channel *chan, int async, const char *predial_string, struct ast_channel *forwarder_chan)
{
char numsubst[AST_MAX_EXTENSION];
int res = 1;
char forwarder[AST_CHANNEL_NAME];
/* If no owner channel exists yet execute pre-run */
if (!channel->owner && begin_dial_prerun(channel, chan, NULL, predial_string)) {
return 0;
}
if (forwarder_chan) {
ast_copy_string(forwarder, ast_channel_name(forwarder_chan), sizeof(forwarder));
ast_channel_lock(channel->owner);
pbx_builtin_setvar_helper(channel->owner, "FORWARDERNAME", forwarder);
ast_channel_unlock(channel->owner);
}
/* Copy device string over */
ast_copy_string(numsubst, channel->device, sizeof(numsubst));
@@ -451,7 +459,7 @@ static int begin_dial(struct ast_dial *dial, struct ast_channel *chan, int async
/* Iterate through channel list, requesting and calling each one */
AST_LIST_LOCK(&dial->channels);
AST_LIST_TRAVERSE(&dial->channels, channel, list) {
success += begin_dial_channel(channel, chan, async, predial_string);
success += begin_dial_channel(channel, chan, async, predial_string, NULL);
}
AST_LIST_UNLOCK(&dial->channels);
@@ -507,7 +515,7 @@ static int handle_call_forward(struct ast_dial *dial, struct ast_dial_channel *c
channel->owner = NULL;
/* Finally give it a go... send it out into the world */
begin_dial_channel(channel, chan, chan ? 0 : 1, predial_string);
begin_dial_channel(channel, chan, chan ? 0 : 1, predial_string, original);
ast_channel_publish_dial_forward(chan, original, channel->owner, NULL, "CANCEL",
ast_channel_call_forward(original));