diff options
| author | Ondrej Zajicek <santiago@crfreenet.org> | 2013-11-22 18:45:57 +0100 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2013-11-22 18:45:57 +0100 |
| commit | 1fba34a7a1e245f08212a31a65030230da8c451d (patch) | |
| tree | bdd103226562a9de3bcaa5d08f14b1c1eb79b167 /proto/ospf/lsupd.c | |
| parent | 0aeac9cb7f9887374ce0258c8653f9518529bf08 (diff) | |
Adds check for buffer size in OSPF LSA flood.
Diffstat (limited to 'proto/ospf/lsupd.c')
| -rw-r--r-- | proto/ospf/lsupd.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c index b19f2619..beac6c83 100644 --- a/proto/ospf/lsupd.c +++ b/proto/ospf/lsupd.c @@ -284,6 +284,16 @@ ospf_lsupd_flood(struct proto_ospf *po, ospf_pkt_fill_hdr(ifa, pk, LSUPD_P); pk->lsano = htonl(1); + /* Check iface buffer size */ + int len2 = sizeof(struct ospf_lsupd_packet) + (hn ? ntohs(hn->length) : hh->length); + if (len2 > ospf_pkt_bufsize(ifa)) + { + /* Cannot fit in a tx buffer, skip that iface */ + log(L_ERR "OSPF: LSA too large to flood on %s (Type: %04x, Id: %R, Rt: %R)", + ifa->iface->name, hh->type, hh->id, hh->rt); + continue; + } + lh = (struct ospf_lsa_header *) (pk + 1); /* Copy LSA into the packet */ @@ -399,7 +409,7 @@ ospf_lsupd_send_list(struct ospf_neighbor *n, list * l) if (len2 > ospf_pkt_bufsize(n->ifa)) { /* Cannot fit in a tx buffer, skip that */ - log(L_WARN "OSPF: LSA too large to send (Type: %04x, Id: %R, Rt: %R)", + log(L_ERR "OSPF: LSA too large to send (Type: %04x, Id: %R, Rt: %R)", lsr->lsh.type, lsr->lsh.id, lsr->lsh.rt); lsr = NODE_NEXT(lsr); continue; |