diff options
Diffstat (limited to 'ospfd/ospf_packet.c')
| -rw-r--r-- | ospfd/ospf_packet.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c index 2156ce33..89878c92 100644 --- a/ospfd/ospf_packet.c +++ b/ospfd/ospf_packet.c @@ -226,7 +226,12 @@ ospf_packet_dup (struct ospf_packet *op) { struct ospf_packet *new; - new = ospf_packet_new (op->length); + if (stream_get_endp(op->s) != op->length) + zlog_warn ("ospf_packet_dup stream %ld ospf_packet %d size mismatch", + STREAM_SIZE(op->s), op->length); + + /* Reserve space for MD5 authentication that may be added later. */ + new = ospf_packet_new (stream_get_endp(op->s) + OSPF_AUTH_MD5_SIZE); ospf_stream_copy (new->s, op->s); new->dst = op->dst; @@ -356,7 +361,10 @@ ospf_make_md5_digest (struct ospf_interface *oi, struct ospf_packet *op) stream_set_putp (op->s, oldputp); /* We do *NOT* increment the OSPF header length. */ - op->length += OSPF_AUTH_MD5_SIZE; + op->length = ntohs (ospfh->length) + OSPF_AUTH_MD5_SIZE; + + if (stream_get_endp(op->s) != op->length) + zlog_warn("ospf_make_md5_digest: length mismatch stream %ld ospf_packet %d", stream_get_endp(op->s), op->length); return OSPF_AUTH_MD5_SIZE; } |