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Fixes nasty bug in BFD.

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When a BFD session is removed while being scheduled for notification,
the session stays in notify list and is removed twice, which leads to
a strange crash after a while.
This commit is contained in:
Ondrej Zajicek 2014-04-02 19:58:23 +02:00
parent 60442b1698
commit 864f52a5f4
1 changed files with 7 additions and 0 deletions
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7
proto/bfd/bfd.c
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@ -477,8 +477,15 @@ bfd_remove_session(struct bfd_proto *p, struct bfd_session *s)
{
ip_addr ip = s->addr;
/* Caller should ensure that request list is empty */
birdloop_enter(p->loop);
/* Remove session from notify list if scheduled for notification */
/* No need for bfd_lock_sessions(), we are already protected by birdloop_enter() */
if (NODE_VALID(&s->n))
rem_node(&s->n);
bfd_free_iface(s->ifa);
rfree(s->tx_timer);