MT#57977 fix save/restore of "foreign" call flag

With the "foreign" flag now stored in call_flags, restoring a call from
Redis restores this flag as well, overwriting the desired flag as we had
set it through call_get_or_create().

Reverse the flag setting by taking it out of call_get_or_create() (where
it's always false anyway, except when coming from Redis) and setting it
explicitly with call_make_own_foreign() after restorting call and its
flags.

Change-Id: Ib68be2aeedfa988b7555e426fa337657e1062245
(cherry picked from commit dbae76c3b6)

daemon/call.c

@@ -3804,7 +3804,7 @@ static struct call *call_create(const str *callid) {
 }
 
 /* returns call with master_lock held in W */
-struct call *call_get_or_create(const str *callid, bool foreign, bool exclusive) {
+struct call *call_get_or_create(const str *callid, bool exclusive) {
 	struct call *c;
 
 restart:
@@ -3824,10 +3824,6 @@ restart:
 		g_hash_table_insert(rtpe_callhash, &c->callid, obj_get(c));
 		RTPE_GAUGE_INC(total_sessions);
 
-		bf_set_clear(&c->call_flags, CALL_FLAG_FOREIGN, foreign);
-
-		statistics_update_foreignown_inc(c);
-
 		rwlock_lock_w(&c->master_lock);
 		rwlock_unlock_w(&rtpe_callhash_lock);
 
@@ -3906,7 +3902,7 @@ struct call *call_get(const str *callid) {
 /* returns call with master_lock held in W, or possibly NULL iff opmode == OP_ANSWER */
 struct call *call_get_opmode(const str *callid, enum call_opmode opmode) {
 	if (opmode == OP_OFFER)
-		return call_get_or_create(callid, false, false);
+		return call_get_or_create(callid, false);
 	return call_get(callid);
 }
 

daemon/call_interfaces.c

@@ -2019,7 +2019,7 @@ static const char *call_offer_answer_ng(struct ng_buffer *ngbuf, bencode_item_t
 			goto out;
 		}
 
-		call = call_get_or_create(&flags.call_id, false, false);
+		call = call_get_or_create(&flags.call_id, false);
 	}
 
 	errstr = "Unknown call-id";
@@ -3331,7 +3331,7 @@ const char *call_publish_ng(struct ng_buffer *ngbuf, bencode_item_t *input, benc
 	if (sdp_streams(&parsed, &streams, &flags))
 		return "Incomplete SDP specification";
 
-	call = call_get_or_create(&flags.call_id, false, false);
+	call = call_get_or_create(&flags.call_id, false);
 
 	if (trickle_ice_update(ngbuf, call, &flags, &streams))
 		return NULL;

daemon/janus.c

@@ -208,7 +208,7 @@ static const char *janus_videoroom_create(struct janus_session *session, struct
 			continue;
 		room->call_id.s = janus_call_id(room_id);
 		room->call_id.len = strlen(room->call_id.s);
-		struct call *call = call_get_or_create(&room->call_id, false, true);
+		struct call *call = call_get_or_create(&room->call_id, true);
 		if (!call) {
 			ilog(LOG_WARN, "Call with reserved Janus ID '" STR_FORMAT
 					"' already exists", STR_FMT(&room->call_id));

daemon/redis.c

@@ -1982,7 +1982,7 @@ static void json_restore_call(struct redis *r, const str *callid, bool foreign)
 		goto err1;
 
 
-	c = call_get_or_create(callid, foreign, false);
+	c = call_get_or_create(callid, false);
 	err = "failed to create call struct";
 	if (!c)
 		goto err1;
@@ -2086,6 +2086,11 @@ static void json_restore_call(struct redis *r, const str *callid, bool foreign)
 		recording_start(c, s.s, NULL);
 	}
 
+	// force-clear foreign flag (could have been set through call_flags), then
+	// set it to what we want, updating the statistics if needed
+	CALL_CLEAR(c, FOREIGN);
+	call_make_own_foreign(c, foreign);
+
 	err = NULL;
 
 err8:

include/call.h

@@ -730,7 +730,7 @@ void call_subscription_free(void *);
 void call_subscriptions_clear(GQueue *q);
 
 
-struct call *call_get_or_create(const str *callid, bool foreign, bool exclusive);
+struct call *call_get_or_create(const str *callid, bool exclusive);
 struct call *call_get_opmode(const str *callid, enum call_opmode opmode);
 void call_make_own_foreign(struct call *c, bool foreign);
 int call_get_mono_dialogue(struct call_subscription *dialogue[2], struct call *call, const str *fromtag,

t/test-stats.c

@@ -4304,9 +4304,9 @@ int main(void) {
 
 	const str callid1 = STR_CONST_INIT("test1");
 	const str callid2 = STR_CONST_INIT("test2");
-	struct call *call1 = call_get_or_create(&callid1, false, true);
+	struct call *call1 = call_get_or_create(&callid1, true);
 	struct call_monologue *ml1 = call_get_or_create_monologue(call1, &callid1);
-	struct call *call2 = call_get_or_create(&callid2, false, true);
+	struct call *call2 = call_get_or_create(&callid2, true);
 	struct call_monologue *ml2 = call_get_or_create_monologue(call2, &callid2);
 	call1->created = ml1->started = (struct timeval) {157,0};
 	call2->created = ml2->started = (struct timeval) {57,0};