diff options
Diffstat (limited to 'proto/ospf/hello.c')
| -rw-r--r-- | proto/ospf/hello.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/proto/ospf/hello.c b/proto/ospf/hello.c index 50cf1407..e00487dc 100644 --- a/proto/ospf/hello.c +++ b/proto/ospf/hello.c @@ -222,9 +222,12 @@ ospf_receive_hello(struct ospf_packet *pkt, struct ospf_iface *ifa, rcv_priority = ps->priority; int pxlen = u32_masklen(ntohl(ps->netmask)); + if (pxlen < 0) + DROP("prefix garbled", ntohl(ps->netmask)); + if ((ifa->type != OSPF_IT_VLINK) && (ifa->type != OSPF_IT_PTP) && - (pxlen != ifa->addr->pxlen)) + ((uint) pxlen != ifa->addr->pxlen)) DROP("prefix length mismatch", pxlen); neighbors = ps->neighbors; |