The predial routine must be run on the local;1 channel.

When ast_call() operates on a local channel, it copies a lot of things
from the local;1 channel to the local;2 channel.  This includes among
other things, channel variables and party id information.

Other reasons it was a bad idea to run predial on the local;2 channel:

1) The channel has not been completely setup.  The ast_call() completes
the setup.

2) The local;2 caller and connected line party information is opposite to
any other channels predial runs on.  (And it hasn't been setup yet.)

* Partially back out -r366183 by removing the chan_local implementation of
the struct ast_channel_tech.pre_call callback.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@366546 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_local.c b/channels/chan_local.c
index 66f88143207e27b107c29a464def9ccfc949c534..bed9eebdcdfae3dfbd120d311f476a3b20748892 100644 (file)
--- a/channels/chan_local.c
+++ b/channels/chan_local.c
@@ -95,7 +95,6 @@ static struct ast_jb_conf g_jb_conf = {
 static struct ast_channel *local_request(const char *type, struct ast_format_cap *cap, const struct ast_channel *requestor, const char *data, int *cause);
 static int local_digit_begin(struct ast_channel *ast, char digit);
 static int local_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
-static int local_pre_call(struct ast_channel *ast, const char *sub_args);
 static int local_call(struct ast_channel *ast, const char *dest, int timeout);
 static int local_hangup(struct ast_channel *ast);
 static int local_answer(struct ast_channel *ast);
@@ -117,7 +116,6 @@ static struct ast_channel_tech local_tech = {
        .requester = local_request,
        .send_digit_begin = local_digit_begin,
        .send_digit_end = local_digit_end,
-       .pre_call = local_pre_call,
        .call = local_call,
        .hangup = local_hangup,
        .answer = local_answer,
@@ -1256,34 +1254,6 @@ static struct ast_channel *local_request(const char *type, struct ast_format_cap
        return chan;
 }
 
-static int local_pre_call(struct ast_channel *ast, const char *sub_args)
-{
-       struct local_pvt *p = ast_channel_tech_pvt(ast);
-       struct ast_channel *chan;
-       int res;
-
-       ao2_lock(p);
-       chan = p->chan;
-       if (chan) {
-               ast_channel_ref(chan);
-       }
-       ao2_unlock(p);
-       if (!chan) {
-               return -1;
-       }
-
-       /*
-        * Execute the predial routine on the ;2 channel so any channel
-        * variables set by the predial will be available to the local
-        * channel PBX.
-        */
-       ast_channel_unlock(ast);
-       res = ast_app_exec_sub(NULL, chan, sub_args);
-       ast_channel_unref(chan);
-       ast_channel_lock(ast);
-       return res;
-}
-
 /*! \brief CLI command "local show channels" */
 static char *locals_show(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {