From 1808f3c00a7bcdea7f0c004ef0613db2156c2065 Mon Sep 17 00:00:00 2001 From: Steven Date: Thu, 28 Sep 2017 16:38:56 -0700 Subject: cdp/lldp: punt for no buffer (VPP-997) When making a call to vlib_packet_template_get_packet(), it is possible to get back a NULL if the system runs out of buffer. This can happen when there is buffer leaks. But don't crash just because we run out of buffers, just punt. Change-Id: Ie90ea41f3dda6e583d48959cbd18ff124158d7f8 Signed-off-by: Steven (cherry picked from commit 0ff5c563d5048991dbd02a3892dccde8305a7e30) --- src/vnet/lldp/lldp_output.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/vnet/lldp') diff --git a/src/vnet/lldp/lldp_output.c b/src/vnet/lldp/lldp_output.c index 950b79aebc6..8698ec976ac 100644 --- a/src/vnet/lldp/lldp_output.c +++ b/src/vnet/lldp/lldp_output.c @@ -145,6 +145,9 @@ lldp_send_ethernet (lldp_main_t * lm, lldp_intf_t * n, int shutdown) */ h0 = vlib_packet_template_get_packet (vm, &lm->packet_template, &bi0); + if (!h0) + return; + /* Add the interface's ethernet source address */ hw = vnet_get_hw_interface (vnm, n->hw_if_index); -- cgit 1.2.3-korg