From cf86740a11650231bab4d14bc8d9288a91a22f16 Mon Sep 17 00:00:00 2001 From: Aloys Augustin Date: Thu, 16 Jul 2020 11:01:01 +0200 Subject: gre: fix outer ip6 length This updates the computation of the outer ip6 header payload_length field in order to take into account the GRE header length. Change-Id: Ie9f982521aeaef7279a9e329a33272d6fae0a428 Type: fix Signed-off-by: Aloys Augustin --- src/vnet/gre/gre.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'src/vnet/gre/gre.c') diff --git a/src/vnet/gre/gre.c b/src/vnet/gre/gre.c index db16fa979cc..83f12833611 100644 --- a/src/vnet/gre/gre.c +++ b/src/vnet/gre/gre.c @@ -339,7 +339,7 @@ gre46_fixup (vlib_main_t * vm, * at the midchain node */ ip0->ip6.payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + sizeof (ip0->ip6)); tunnel_encap_fixup_4o6 (flags, (ip4_header_t *) (ip0 + 1), &ip0->ip6); } @@ -357,7 +357,7 @@ gre66_fixup (vlib_main_t * vm, * at the midchain node */ ip0->ip6.payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + sizeof (ip0->ip6)); tunnel_encap_fixup_6o6 (flags, (ip6_header_t *) (ip0 + 1), &ip0->ip6); } @@ -365,15 +365,15 @@ static void grex6_fixup (vlib_main_t * vm, const ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) { - ip6_header_t *ip0; + ip6_and_gre_header_t *ip0; ip0 = vlib_buffer_get_current (b0); /* Fixup the payload length field in the GRE tunnel encap that was applied * at the midchain node */ - ip0->payload_length = + ip0->ip6.payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + sizeof (ip0->ip6)); } /** -- cgit 1.2.3-korg