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BFD: Fixes crash after socket error

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Thanks to Thomas King for the bugreport.
This commit is contained in:
Ondrej Zajicek
2015-07-19 11:39:24 +02:00
parent a8ad8fd649
commit ffa398b8d8
2 changed files with 22 additions and 14 deletions
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8
proto/bfd/packets.c
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@@ -63,9 +63,13 @@ void
bfd_send_ctl(struct bfd_proto *p, struct bfd_session *s, int final)
{
sock *sk = s->ifa->sk;
struct bfd_ctl_packet *pkt = (struct bfd_ctl_packet *) sk->tbuf;
struct bfd_ctl_packet *pkt;
char fb[8];
if (!sk)
return;
pkt = (struct bfd_ctl_packet *) sk->tbuf;
pkt->vdiag = bfd_pack_vdiag(1, s->loc_diag);
pkt->flags = bfd_pack_flags(s->loc_state, 0);
pkt->detect_mult = s->detect_mult;
@@ -139,7 +143,7 @@ bfd_rx_hook(sock *sk, int len)
u8 ps = bfd_pkt_get_state(pkt);
if (ps > BFD_STATE_DOWN)
DROP("invalid init state", ps);
s = bfd_find_session_by_addr(p, sk->faddr);
/* FIXME: better session matching and message */