diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-06-13 13:49:38 -0400 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-07-24 13:51:39 -0400 |
| commit | a5b6bd2be38e943f9a028e7025e191bb92b25c94 (patch) | |
| tree | 69d733765123b0c3c9ecc6479e941cdde714154f | |
| parent | e0ae31b88690aa93159a018e383e4e6ba6dc9937 (diff) | |
pimd: Ensure packet received on vrf interface is configured for pim
In a vrf configuration, when we receive a pim packet we lookup
the correct incoming interface. There exists a chance that
the correct incoming interface has not been configured to use
pim yet. gracefully bow out and do nothing with the packet.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
| -rw-r--r-- | pimd/pim_pim.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/pimd/pim_pim.c b/pimd/pim_pim.c index 80ce6f066f..5b9d6effc8 100644 --- a/pimd/pim_pim.c +++ b/pimd/pim_pim.c @@ -327,7 +327,13 @@ static int pim_sock_read(struct thread *t) * it's the right interface because we bind to it */ ifp = if_lookup_by_index(ifindex, pim_ifp->pim->vrf_id); - + if (!ifp->info) { + if (PIM_DEBUG_PIM_PACKETS) + zlog_debug( + "%s: Received incoming pim packet on interface not yet configured for pim %s", + __PRETTY_FUNCTION__, ifp->name); + goto done; + } int fail = pim_pim_packet(ifp, buf, len); if (fail) { if (PIM_DEBUG_PIM_PACKETS) |