summaryrefslogtreecommitdiffstats
path: root/src/vnet/ipip/node.c
diff options
context:
space:
mode:
authorOle Troan <ot@cisco.com>2018-08-08 22:23:19 +0200
committerDave Barach <openvpp@barachs.net>2018-08-10 12:02:51 +0000
commit4146c65f0dd0b5412746064f230b70ec894d2980 (patch)
tree9266f7de360d808711002292f30f6e3db6aea4f6 /src/vnet/ipip/node.c
parent3074629b25556b04b8ac7e72a06849e39ed14ad4 (diff)
IP fragmentation to handle buffer chains.
Change-Id: Iff557f566ebc9ab170d75da1233997d83b8c8a66 Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/ipip/node.c')
-rw-r--r--src/vnet/ipip/node.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vnet/ipip/node.c b/src/vnet/ipip/node.c
index d55b91a0b93..60d6223d5f3 100644
--- a/src/vnet/ipip/node.c
+++ b/src/vnet/ipip/node.c
@@ -108,6 +108,14 @@ ipip_input (vlib_main_t * vm, vlib_node_runtime_t * node,
else
{
ip40 = vlib_buffer_get_current (b0);
+ /* Check for outer fragmentation */
+ if (ip40->flags_and_fragment_offset &
+ clib_host_to_net_u16 (IP4_HEADER_FLAG_MORE_FRAGMENTS))
+ {
+ next0 = IPIP_INPUT_NEXT_DROP;
+ b0->error = node->errors[IPIP_ERROR_FRAGMENTED_PACKET];
+ goto drop;
+ }
vlib_buffer_advance (b0, sizeof (*ip40));
ip_set (&src0, &ip40->src_address, true);
ip_set (&dst0, &ip40->dst_address, true);