OSPF: Fix minor issue in TTL check
The TTL check must be done after instance ID dispatch to avoid warnings when a physical iface is shared by multiple instances and some use TTL security and some not.
This commit is contained in:
parent
f097f7659c
commit
2549300b54
1 changed files with 4 additions and 3 deletions
|
@ -270,9 +270,6 @@ ospf_rx_hook(sock *sk, uint len)
|
|||
if (pkt == NULL)
|
||||
DROP("bad IP header", len);
|
||||
|
||||
if (ifa->check_ttl && (sk->rcv_ttl < 255))
|
||||
DROP("wrong TTL", sk->rcv_ttl);
|
||||
|
||||
if (len < sizeof(struct ospf_packet))
|
||||
DROP("too short", len);
|
||||
|
||||
|
@ -379,6 +376,10 @@ found:
|
|||
if (ipa_equal(sk->laddr, ifa->des_routers) && (ifa->sk_dr == 0))
|
||||
return 1;
|
||||
|
||||
/* TTL check must be done after instance dispatch */
|
||||
if (ifa->check_ttl && (sk->rcv_ttl < 255))
|
||||
DROP("wrong TTL", sk->rcv_ttl);
|
||||
|
||||
if (rid == p->router_id)
|
||||
DROP1("my own router ID");
|
||||
|
||||
|
|
Loading…
Reference in a new issue