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dbus: extra protection against dbus calling into us while we are already disconnected

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This commit is contained in:
Lennart Poettering 2010-04-08 04:58:30 +02:00
parent 90d3f30b6f
commit 2e317f525f
1 changed files with 12 additions and 5 deletions
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17
dbus.c
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@ -36,6 +36,10 @@ static void api_bus_dispatch_status(DBusConnection *bus, DBusDispatchStatus stat
assert(bus);
assert(m);
if (!m->api_bus)
return;
assert(m->api_bus == bus);
m->request_api_bus_dispatch = status != DBUS_DISPATCH_COMPLETE;
@ -46,6 +50,10 @@ static void system_bus_dispatch_status(DBusConnection *bus, DBusDispatchStatus s
assert(bus);
assert(m);
if (!m->system_bus)
return;
assert(m->system_bus == bus);
m->request_system_bus_dispatch = status != DBUS_DISPATCH_COMPLETE;
@ -304,7 +312,7 @@ static DBusHandlerResult api_bus_message_filter(DBusConnection *connection, DBu
/* dbus_message_get_path(message)); */
if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
log_error("Warning! D-Bus connection terminated.");
log_error("Warning! API D-Bus connection terminated.");
bus_done_api(m);
} else if (dbus_message_is_signal(message, DBUS_INTERFACE_DBUS, "NameOwnerChanged")) {
@ -342,7 +350,7 @@ static DBusHandlerResult system_bus_message_filter(DBusConnection *connection,
/* dbus_message_get_path(message)); */
if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
log_error("Warning! D-Bus connection terminated.");
log_error("Warning! System D-Bus connection terminated.");
bus_done_system(m);
} if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
@ -613,11 +621,10 @@ void bus_done_api(Manager *m) {
if (m->system_bus == m->api_bus)
m->system_bus = NULL;
dbus_connection_close(m->api_bus);
dbus_connection_set_dispatch_status_function(m->api_bus, NULL, NULL, NULL);
dbus_connection_close(m->api_bus);
dbus_connection_unref(m->api_bus);
m->api_bus = NULL;
}
if (m->subscribed) {
@ -638,8 +645,8 @@ void bus_done_system(Manager *m) {
bus_done_api(m);
if (m->system_bus) {
dbus_connection_close(m->system_bus);
dbus_connection_set_dispatch_status_function(m->system_bus, NULL, NULL, NULL);
dbus_connection_close(m->system_bus);
dbus_connection_unref(m->system_bus);
m->system_bus = NULL;
}