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| author | Donatas Abraitis <donatas@opensourcerouting.org> | 2023-05-02 17:56:09 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-05-02 17:56:09 +0300 |
| commit | da57946b0e9fdb24133860df931a53dbd6646f84 (patch) | |
| tree | 2db3acbaf76e91c2874fea81ff65bb91f2800999 /ripd | |
| parent | 1998805bd5f2a4941843e17e02cf98a16462f238 (diff) | |
| parent | 762f54f088367b8af0556884608651b593dadbff (diff) | |
Merge pull request #13366 from zmw12306/rte_tag
ripd: add non-zero check for RIPv1 reserved field
Diffstat (limited to 'ripd')
| -rw-r--r-- | ripd/ripd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ripd/ripd.c b/ripd/ripd.c index 48f266a94c..cb8dd4945d 100644 --- a/ripd/ripd.c +++ b/ripd/ripd.c @@ -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)) { |