diff options
| author | Ondrej Filip <feela@network.cz> | 2000-05-10 15:04:21 +0000 |
|---|---|---|
| committer | Ondrej Filip <feela@network.cz> | 2000-05-10 15:04:21 +0000 |
| commit | 13741548a6a75479577ea991bad1e38a4fba6320 (patch) | |
| tree | f150f5dcf6fd298d510a3456ab4c814c1e68ee09 | |
| parent | a9c41c854802d1a8d44e666548423589022111c8 (diff) | |
Some better lsa checking added.
| -rw-r--r-- | proto/ospf/lsupd.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/proto/ospf/lsupd.c b/proto/ospf/lsupd.c index 64d7dac9..1bae1bdb 100644 --- a/proto/ospf/lsupd.c +++ b/proto/ospf/lsupd.c @@ -251,6 +251,16 @@ ospf_lsupd_rx(struct ospf_lsupd_packet *ps, struct proto *p, { struct ospf_lsa_header lsatmp; struct top_hash_entry *lsadb; + u16 lenn; + + lenn=ntohs(lsa->length); + + if((lenn<=sizeof(struct ospf_lsa_header))||(lenn!=(4*(lenn/4)))) + { + log("Received LSA with bad length\n"); + ospf_neigh_sm(n,INM_BADLSREQ); + break; + } /* pg 143 (1) */ if(lsa->checksum!=lsasum_check(lsa,NULL,po)) { |