bridge: Make "bridge destroy" only available in developer mode and add "all" to "bridge kick".

The "bridge destroy" CLI command is invasive to bridges and can leave them in an unexpected
state for the users of them. Since this command may be useful for developers it is now
only available when developer mode is available. To take its place "all" has been added
as a valid option to the "bridge kick" CLI command. It will kick all of the channels
in the bridge out.

ASTERISK-23987
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/3840/
........

Merged revisions 419536 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@419537 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/bridge.c

@@ -4882,6 +4882,7 @@ static char *handle_bridge_show_specific(struct ast_cli_entry *e, int cmd, struc
 	return CLI_SUCCESS;
 }
 
+#ifdef AST_DEVMODE
 static char *handle_bridge_destroy_specific(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
 	struct ast_bridge *bridge;
@@ -4915,10 +4916,11 @@ static char *handle_bridge_destroy_specific(struct ast_cli_entry *e, int cmd, st
 
 	return CLI_SUCCESS;
 }
+#endif
 
 static char *complete_bridge_participant(const char *bridge_name, const char *line, const char *word, int pos, int state)
 {
-	RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
+	struct ast_bridge *bridge;
 	struct ast_bridge_channel *bridge_channel;
 	int which;
 	int wordlen;
@@ -4928,6 +4930,12 @@ static char *complete_bridge_participant(const char *bridge_name, const char *li
 		return NULL;
 	}
 
+	if (!state) {
+		ao2_ref(bridge, -1);
+		return ast_strdup("all");
+	}
+	state--;
+
 	{
 		SCOPED_LOCK(bridge_lock, bridge, ast_bridge_lock, ast_bridge_unlock);
 
@@ -4936,25 +4944,29 @@ static char *complete_bridge_participant(const char *bridge_name, const char *li
 		AST_LIST_TRAVERSE(&bridge->channels, bridge_channel, entry) {
 			if (!strncasecmp(ast_channel_name(bridge_channel->chan), word, wordlen)
 				&& ++which > state) {
+				ao2_ref(bridge, -1);
 				return ast_strdup(ast_channel_name(bridge_channel->chan));
 			}
 		}
 	}
 
+	ao2_ref(bridge, -1);
+
 	return NULL;
 }
 
 static char *handle_bridge_kick_channel(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
 {
-	RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
-	RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
+	struct ast_bridge *bridge;
 
 	switch (cmd) {
 	case CLI_INIT:
 		e->command = "bridge kick";
 		e->usage =
-			"Usage: bridge kick <bridge-id> <channel-name>\n"
-			"       Kick the <channel-name> channel out of the <bridge-id> bridge\n";
+			"Usage: bridge kick <bridge-id> <channel-name | all>\n"
+			"       Kick the <channel-name> channel out of the <bridge-id> bridge\n"
+			"       If all is specified as the channel name then all channels will be\n"
+			"       kicked out of the bridge.\n";
 		return NULL;
 	case CLI_GENERATE:
 		if (a->pos == 2) {
@@ -4976,16 +4988,33 @@ static char *handle_bridge_kick_channel(struct ast_cli_entry *e, int cmd, struct
 		return CLI_SUCCESS;
 	}
 
-	chan = ast_channel_get_by_name_prefix(a->argv[3], strlen(a->argv[3]));
-	if (!chan) {
-		ast_cli(a->fd, "Channel '%s' not found\n", a->argv[3]);
-		return CLI_SUCCESS;
-	}
+	if (!strcasecmp(a->argv[3], "all")) {
+		struct ast_bridge_channel *bridge_channel;
 
-	ast_cli(a->fd, "Kicking channel '%s' from bridge '%s'\n",
-		ast_channel_name(chan), a->argv[2]);
-	ast_bridge_kick(bridge, chan);
+		ast_cli(a->fd, "Kicking all channels from bridge '%s'\n", a->argv[2]);
 
+		ast_bridge_lock(bridge);
+		AST_LIST_TRAVERSE(&bridge->channels, bridge_channel, entry) {
+			ast_bridge_channel_queue_callback(bridge_channel, 0, kick_it, NULL, 0);
+		}
+		ast_bridge_unlock(bridge);
+	} else {
+		struct ast_channel *chan;
+
+		chan = ast_channel_get_by_name_prefix(a->argv[3], strlen(a->argv[3]));
+		if (!chan) {
+			ast_cli(a->fd, "Channel '%s' not found\n", a->argv[3]);
+			ao2_ref(bridge, -1);
+			return CLI_SUCCESS;
+		}
+
+		ast_cli(a->fd, "Kicking channel '%s' from bridge '%s'\n",
+			ast_channel_name(chan), a->argv[2]);
+		ast_bridge_kick(bridge, chan);
+		ast_channel_unref(chan);
+	}
+
+	ao2_ref(bridge, -1);
 	return CLI_SUCCESS;
 }
 
@@ -5122,7 +5151,9 @@ static char *handle_bridge_technology_suspend(struct ast_cli_entry *e, int cmd,
 static struct ast_cli_entry bridge_cli[] = {
 	AST_CLI_DEFINE(handle_bridge_show_all, "List all bridges"),
 	AST_CLI_DEFINE(handle_bridge_show_specific, "Show information about a bridge"),
+#ifdef AST_DEVMODE
 	AST_CLI_DEFINE(handle_bridge_destroy_specific, "Destroy a bridge"),
+#endif
 	AST_CLI_DEFINE(handle_bridge_kick_channel, "Kick a channel from a bridge"),
 	AST_CLI_DEFINE(handle_bridge_technology_show, "List registered bridge technologies"),
 	AST_CLI_DEFINE(handle_bridge_technology_suspend, "Suspend/unsuspend a bridge technology"),