diff options
| author |   Florin Coras <fcoras@cisco.com> | 2016-09-06 15:18:21 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2016-09-07 19:35:47 +0000 |
| commit | fb28e9a80c8e36db0a3a484a20e9e0114be517bd (patch) | |
| tree | c469c677459167c479473272d8a6a7b0842b916c /vnet | |
| parent | bf1fa7fa397b3be95a9c83e27f18dc896a174287 (diff) | |
VPP-388 Improve IP header lookup in ipsec_output
Change-Id: I5df0067c9ce56d7a15a991b82d4761924d91758b
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/ipsec/ipsec_output.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/vnet/vnet/ipsec/ipsec_output.c b/vnet/vnet/ipsec/ipsec_output.c index c27e8e6a..ee21b777 100644 --- a/vnet/vnet/ipsec/ipsec_output.c +++ b/vnet/vnet/ipsec/ipsec_output.c @@ -225,14 +225,14 @@ ipsec_output_node_fn (vlib_main_t * vm, ip6_header_t *ip6_0 = 0; udp_header_t *udp0; u8 is_ipv6 = 0; + u32 iph_offset = 0; bi0 = from[0]; b0 = vlib_get_buffer (vm, bi0); sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX]; - - - ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + - sizeof (ethernet_header_t)); + iph_offset = vnet_buffer (b0)->ip.save_rewrite_length; + ip0 = (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) + + iph_offset); /* just forward non ipv4 packets */ if (PREDICT_FALSE ((ip0->ip_version_and_header_length & 0xF0) != 0x40)) @@ -242,8 +242,8 @@ ipsec_output_node_fn (vlib_main_t * vm, ((ip0->ip_version_and_header_length & 0xF0) == 0x60)) { is_ipv6 = 1; - ip6_0 = (ip6_header_t *) ((u8 *) vlib_buffer_get_current (b0) + - sizeof (ethernet_header_t)); + ip6_0 = (ip6_header_t *) ((u8 *) vlib_buffer_get_current (b0) + + iph_offset); } else { @@ -315,7 +315,7 @@ ipsec_output_node_fn (vlib_main_t * vm, next_node_index = im->esp_encrypt_node_index; vnet_buffer (b0)->output_features.ipsec_sad_index = p0->sa_index; - vlib_buffer_advance (b0, sizeof (ethernet_header_t)); + vlib_buffer_advance (b0, iph_offset); p0->counter.packets++; if (is_ipv6) { |