diff options
Diffstat (limited to 'src/sync-notrack.c')
| -rw-r--r-- | src/sync-notrack.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/sync-notrack.c b/src/sync-notrack.c index 14ecde5..d9f273e 100644 --- a/src/sync-notrack.c +++ b/src/sync-notrack.c @@ -26,6 +26,11 @@ #include <string.h> +static struct alarm_block alive_alarm; + +/* XXX: alive message expiration configurable */ +#define ALIVE_INT 1 + struct cache_notrack { struct queue_node qnode; }; @@ -106,6 +111,9 @@ static int digest_msg(const struct nethdr *net) return MSG_CTL; } + if (IS_ALIVE(net)) + return MSG_CTL; + return MSG_BAD; } @@ -162,6 +170,7 @@ static int tx_queue_xmit(struct queue_node *n, const void *data2) static void notrack_xmit(void) { queue_iterate(STATE_SYNC(tx_queue), NULL, tx_queue_xmit); + add_alarm(&alive_alarm, ALIVE_INT, 0); } static void notrack_enqueue(struct cache_object *obj, int query) @@ -171,10 +180,40 @@ static void notrack_enqueue(struct cache_object *obj, int query) cache_object_get(obj); } +static void tx_queue_add_ctlmsg2(uint32_t flags) +{ + struct queue_object *qobj; + struct nethdr *ctl; + + qobj = queue_object_new(Q_ELEM_CTL, sizeof(struct nethdr_ack)); + if (qobj == NULL) + return; + + ctl = (struct nethdr *)qobj->data; + ctl->type = NET_T_CTL; + ctl->flags = flags; + + queue_add(STATE_SYNC(tx_queue), &qobj->qnode); +} + +static void do_alive_alarm(struct alarm_block *a, void *data) +{ + tx_queue_add_ctlmsg2(NET_F_ALIVE); + add_alarm(&alive_alarm, ALIVE_INT, 0); +} + +static int notrack_init(void) +{ + init_alarm(&alive_alarm, NULL, do_alive_alarm); + add_alarm(&alive_alarm, ALIVE_INT, 0); + return 0; +} + struct sync_mode sync_notrack = { .internal_cache_flags = NO_FEATURES, .external_cache_flags = NO_FEATURES, .internal_cache_extra = &cache_notrack_extra, + .init = notrack_init, .local = notrack_local, .recv = notrack_recv, .enqueue = notrack_enqueue, |