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jack: don't emit connect callback with unknown ports

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Lookup of globals needs a thread lock or context lock. There is no
need to take the context lock when we already have the thread lock.

Make a new method to find an object of a type.

Check that link objects are referencing valid ports. Check that the
connect callback is referencing valid ports.

Only return connections with valid ports.

See #1265
This commit is contained in:
Wim Taymans 2021-06-22 11:16:45 +02:00
parent b98b9e0e77
commit 8c77713a7b
1 changed files with 30 additions and 21 deletions
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51
pipewire-jack/src/pipewire-jack.c
View file

@ -603,6 +603,13 @@ static struct object *find_port(struct client *c, const char *name)
}
return NULL;
}
static struct object *find_type(struct client *c, uint32_t id, uint32_t type)
{
struct object *o = pw_map_lookup(&c->context.globals, id);
if (o != NULL && o->type == type)
return o;
return NULL;
}
static struct object *find_link(struct client *c, uint32_t src, uint32_t dst)
{
@ -2297,9 +2304,7 @@ static int metadata_property(void *object, uint32_t id,
c->metadata->default_audio_source[0] = '\0';
}
} else {
pthread_mutex_lock(&c->context.lock);
o = pw_map_lookup(&c->context.globals, id);
pthread_mutex_unlock(&c->context.lock);
if (o == NULL)
return -EINVAL;
@ -2518,10 +2523,9 @@ static void registry_event_global(void *data, uint32_t id,
pthread_mutex_lock(&c->context.lock);
spa_list_append(&c->context.ports, &o->link);
ot = pw_map_lookup(&c->context.globals, node_id);
pthread_mutex_unlock(&c->context.lock);
if (ot == NULL || ot->type != INTERFACE_Node)
if ((ot = find_type(c, node_id, INTERFACE_Node)) == NULL)
goto exit_free;
if (is_monitor && !c->merge_monitor)
@ -2592,10 +2596,16 @@ static void registry_event_global(void *data, uint32_t id,
goto exit_free;
o->port_link.src = pw_properties_parse_int(str);
if (find_type(c, o->port_link.src, INTERFACE_Port) == NULL)
goto exit_free;
if ((str = spa_dict_lookup(props, PW_KEY_LINK_INPUT_PORT)) == NULL)
goto exit_free;
o->port_link.dst = pw_properties_parse_int(str);
if (find_type(c, o->port_link.dst, INTERFACE_Port) == NULL)
goto exit_free;
pw_log_debug(NAME" %p: add link %d %d->%d", c, id,
o->port_link.src, o->port_link.dst);
}
@ -2669,14 +2679,14 @@ static void registry_event_global_remove(void *object, uint32_t id)
pw_log_debug(NAME" %p: removed: %u", c, id);
pthread_mutex_lock(&c->context.lock);
o = pw_map_lookup(&c->context.globals, id);
if (o != NULL)
spa_list_remove(&o->link);
pthread_mutex_unlock(&c->context.lock);
if (o == NULL)
return;
pthread_mutex_lock(&c->context.lock);
spa_list_remove(&o->link);
pthread_mutex_unlock(&c->context.lock);
/* JACK clients expect the objects to hang around after
* they are unregistered. We keep the memory around for that
* reason but reuse it when we can. */
@ -2706,8 +2716,13 @@ static void registry_event_global_remove(void *object, uint32_t id)
o->id, 0, c->portregistration_arg);
break;
case INTERFACE_Link:
do_callback(c, connect_callback,
o->port_link.src, o->port_link.dst, 0, c->connect_arg);
if (find_type(c, o->port_link.src, INTERFACE_Port) != NULL &&
find_type(c, o->port_link.dst, INTERFACE_Port) != NULL) {
do_callback(c, connect_callback,
o->port_link.src, o->port_link.dst, 0, c->connect_arg);
} else
pw_log_warn("unlink between unknown ports %d and %d",
o->port_link.src, o->port_link.dst);
break;
}
@ -4073,9 +4088,9 @@ const char ** jack_port_get_all_connections (const jack_client_t *client,
pthread_mutex_lock(&c->context.lock);
spa_list_for_each(l, &c->context.links, link) {
if (l->port_link.src == o->id)
p = pw_map_lookup(&c->context.globals, l->port_link.dst);
p = find_type(c, l->port_link.dst, INTERFACE_Port);
else if (l->port_link.dst == o->id)
p = pw_map_lookup(&c->context.globals, l->port_link.src);
p = find_type(c, l->port_link.src, INTERFACE_Port);
else
continue;
@ -4869,21 +4884,15 @@ jack_port_t * jack_port_by_id (jack_client_t *client,
jack_port_id_t port_id)
{
struct client *c = (struct client *) client;
struct object *res = NULL, *o;
struct object *res = NULL;
spa_return_val_if_fail(c != NULL, NULL);
pthread_mutex_lock(&c->context.lock);
o = pw_map_lookup(&c->context.globals, port_id);
pw_log_debug(NAME" %p: port %d -> %p", c, port_id, o);
res = find_type(c, port_id, INTERFACE_Port);
pw_log_debug(NAME" %p: port %d -> %p", c, port_id, res);
if (o == NULL || o->type != INTERFACE_Port)
goto exit;
res = o;
exit:
pthread_mutex_unlock(&c->context.lock);
if (res == NULL)