matthieu/frr
1
0
Fork 0
forked from Mirror/frr
Code Pull requests Activity

ripd: add non-zero check for RIPv1 reserved field,

Browse source 
According to RFC2453 3.6, the tag of a RIP-1 entry should be zero
Signed-off-by: zmw12306 <zmw12306@gmail.com>
This commit is contained in:
zmw12306 2023-04-25 14:37:28 -04:00
parent 9b96394d05
commit 762f54f088
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
ripd/ripd.c
View file

@ -1171,6 +1171,12 @@ static void rip_response_process(struct rip_packet *packet, int size,
continue;
}
if (packet->version == RIPv1 && rte->tag != 0) {
zlog_warn("RIPv1 reserved field is nonzero: %d",
ntohs(rte->tag));
continue;
}
/* - is the destination address valid (e.g., unicast; not net 0
or 127) */
if (!rip_destination_check(rte->prefix)) {