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authorCiara Loftus <ciara.loftus@intel.com>2016-09-30 15:47:03 +0100
committerCiara Loftus <ciara.loftus@intel.com>2017-04-05 09:06:23 +0100
commit7eac916e1b00d6a3393a09925e1634d71bf30568 (patch)
tree94a3167a1abf03e62a2207f28905263a2b09229e /src/vnet/ipsec-gre/node.c
parent63d5bae6401049debadfa9fcc3f18d8118b80441 (diff)
GRE over IPv6
Refactors the GRE node to work with both IPv4 and IPv6 transports. Note that this changes the binary configuration API to support both address families; each address uses the same memory for either address type and a flag to indicate which is in use. The CLI and VAT syntax remains unchanged; the code detects whether an IPv4 or an IPv6 address was given. Configuration examples: IPv4 CLI: create gre tunnel src 192.168.1.1 dst 192.168.1.2 IPv6 CLI: create gre tunnel src 2620:124:9000::1 dst 2620:124:9000::2 IPv4 VAT: gre_add_del_tunnel src 192.168.1.1 dst 192.168.1.2 IPv6 VAT: gre_add_del_tunnel src 2620:124:9000::1 dst 2620:124:9000::2 Change-Id: Ica8ee775dc101047fb8cd41617ddc8fafc2741b0 Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Diffstat (limited to 'src/vnet/ipsec-gre/node.c')
-rw-r--r--src/vnet/ipsec-gre/node.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/vnet/ipsec-gre/node.c b/src/vnet/ipsec-gre/node.c
index d20f248a6c8..217d323ad65 100644
--- a/src/vnet/ipsec-gre/node.c
+++ b/src/vnet/ipsec-gre/node.c
@@ -92,6 +92,8 @@ ipsec_gre_input (vlib_main_t * vm,
u32 n_left_from, next_index, * from, * to_next;
u64 cached_tunnel_key = (u64) ~0;
u32 cached_tunnel_sw_if_index = 0, tunnel_sw_if_index;
+ u32 tun_src0, tun_dst0;
+ u32 tun_src1, tun_dst1;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
@@ -146,10 +148,10 @@ ipsec_gre_input (vlib_main_t * vm,
ip1 = vlib_buffer_get_current (b1);
/* Save src + dst ip4 address */
- vnet_buffer(b0)->gre.src = ip0->src_address.as_u32;
- vnet_buffer(b0)->gre.dst = ip0->dst_address.as_u32;
- vnet_buffer(b1)->gre.src = ip1->src_address.as_u32;
- vnet_buffer(b1)->gre.dst = ip1->dst_address.as_u32;
+ tun_src0 = ip0->src_address.as_u32;
+ tun_dst0 = ip0->dst_address.as_u32;
+ tun_src1 = ip1->src_address.as_u32;
+ tun_dst1 = ip1->dst_address.as_u32;
vlib_buffer_advance (b0, sizeof (*ip0));
vlib_buffer_advance (b1, sizeof (*ip1));
@@ -197,8 +199,7 @@ ipsec_gre_input (vlib_main_t * vm,
/* For L2 payload set input sw_if_index to GRE tunnel for learning */
if (PREDICT_TRUE(next0 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
{
- u64 key = ((u64)(vnet_buffer(b0)->gre.dst) << 32) |
- (u64)(vnet_buffer(b0)->gre.src);
+ u64 key = ((u64)(tun_dst0) << 32) | (u64)(tun_src0);
if (cached_tunnel_key != key)
{
@@ -230,8 +231,7 @@ drop0:
/* For L2 payload set input sw_if_index to GRE tunnel for learning */
if (PREDICT_TRUE(next1 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
{
- u64 key = ((u64)(vnet_buffer(b1)->gre.dst) << 32) |
- (u64)(vnet_buffer(b1)->gre.src);
+ u64 key = ((u64)(tun_dst1) << 32) | (u64)(tun_src1);
if (cached_tunnel_key != key)
{
@@ -297,6 +297,7 @@ drop1:
u16 version0, protocol0;
int verr0;
u32 next0;
+ u32 tun_src0, tun_dst0;
bi0 = from[0];
to_next[0] = bi0;
@@ -308,8 +309,8 @@ drop1:
b0 = vlib_get_buffer (vm, bi0);
ip0 = vlib_buffer_get_current (b0);
- vnet_buffer(b0)->gre.src = ip0->src_address.as_u32;
- vnet_buffer(b0)->gre.dst = ip0->dst_address.as_u32;
+ tun_src0 = ip0->src_address.as_u32;
+ tun_dst0 = ip0->dst_address.as_u32;
vlib_buffer_advance (b0, sizeof (*ip0));
@@ -337,8 +338,7 @@ drop1:
/* For L2 payload set input sw_if_index to GRE tunnel for learning */
if (PREDICT_FALSE(next0 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
{
- u64 key = ((u64)(vnet_buffer(b0)->gre.dst) << 32) |
- (u64)(vnet_buffer(b0)->gre.src);
+ u64 key = ((u64)(tun_dst0) << 32) | (u64)(tun_src0);
if (cached_tunnel_key != key)
{