diff options
| author |   “mukeshyadav1984” <mukyadav@cisco.com> | 2017-11-23 02:39:33 -0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-11-28 12:26:30 +0000 |
| commit | 430ac939d115b59e3f7f704645c6f88878223e1b (patch) | |
| tree | ca5bbc6e7ab3c60316ed602f9a637ff423203f96 /src/vnet/ipsec/ipsec_input.c | |
| parent | b3eeb6a5dd17627f56f5a9f299950c96f952e7a1 (diff) | |
IPSec AH protocol enhancement in VPP native core
Change-Id: Iec5804d768485f4015bbf732d8d19ef2f24e6939
Signed-off-by: “mukeshyadav1984” <mukyadav@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/ipsec_input.c')
| -rw-r--r-- | src/vnet/ipsec/ipsec_input.c | 63 |
1 files changed, 52 insertions, 11 deletions
diff --git a/src/vnet/ipsec/ipsec_input.c b/src/vnet/ipsec/ipsec_input.c index f27058bb778..9aa5654c9da 100644 --- a/src/vnet/ipsec/ipsec_input.c +++ b/src/vnet/ipsec/ipsec_input.c @@ -22,6 +22,7 @@ #include <vnet/ipsec/ipsec.h> #include <vnet/ipsec/esp.h> +#include <vnet/ipsec/ah.h> #define foreach_ipsec_input_error \ _(RX_PKTS, "IPSEC pkts received") \ @@ -194,6 +195,7 @@ ipsec_input_ip4_node_fn (vlib_main_t * vm, vlib_buffer_t *b0; ip4_header_t *ip0; esp_header_t *esp0; + ah_header_t *ah0; ip4_ipsec_config_t *c0; ipsec_spd_t *spd0; ipsec_policy_t *p0 = 0; @@ -213,7 +215,6 @@ ipsec_input_ip4_node_fn (vlib_main_t * vm, spd0 = pool_elt_at_index (im->spds, c0->spd_index); ip0 = vlib_buffer_get_current (b0); - esp0 = (esp_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0)); if (PREDICT_TRUE (ip0->protocol == IP_PROTOCOL_IPSEC_ESP)) { @@ -226,6 +227,7 @@ ipsec_input_ip4_node_fn (vlib_main_t * vm, clib_net_to_host_u16 (ip0->length), spd0->id); #endif + esp0 = (esp_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0)); p0 = ipsec_input_protect_policy_match (spd0, clib_net_to_host_u32 (ip0->src_address. @@ -246,21 +248,60 @@ ipsec_input_ip4_node_fn (vlib_main_t * vm, vlib_buffer_advance (b0, ip4_header_bytes (ip0)); goto trace0; } + + /* FIXME bypass and discard */ + trace0: + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + ipsec_input_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + if (ip0->protocol == IP_PROTOCOL_IPSEC_ESP) + { + if (p0) + tr->sa_id = p0->sa_id; + tr->spi = clib_host_to_net_u32 (esp0->spi); + tr->seq = clib_host_to_net_u32 (esp0->seq); + } + } + } - /* FIXME bypass and discard */ - trace0: - if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + if (PREDICT_TRUE (ip0->protocol == IP_PROTOCOL_IPSEC_AH)) { - ipsec_input_trace_t *tr = - vlib_add_trace (vm, node, b0, sizeof (*tr)); - if (ip0->protocol == IP_PROTOCOL_IPSEC_ESP) + ah0 = (ah_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0)); + p0 = ipsec_input_protect_policy_match (spd0, + clib_net_to_host_u32 + (ip0->src_address. + as_u32), + clib_net_to_host_u32 + (ip0->dst_address. + as_u32), + clib_net_to_host_u32 + (ah0->spi)); + + if (PREDICT_TRUE (p0 != 0)) { - if (p0) - tr->sa_id = p0->sa_id; - tr->spi = clib_host_to_net_u32 (esp0->spi); - tr->seq = clib_host_to_net_u32 (esp0->seq); + p0->counter.packets++; + p0->counter.bytes += clib_net_to_host_u16 (ip0->length); + vnet_buffer (b0)->ipsec.sad_index = p0->sa_index; + vnet_buffer (b0)->ipsec.flags = 0; + next0 = im->ah_decrypt_next_index; + goto trace1; + } + /* FIXME bypass and discard */ + trace1: + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + ipsec_input_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + if (ip0->protocol == IP_PROTOCOL_IPSEC_ESP) + { + if (p0) + tr->sa_id = p0->sa_id; + tr->spi = clib_host_to_net_u32 (ah0->spi); + tr->seq = clib_host_to_net_u32 (ah0->seq_no); + } } } |