#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/esp.h>
-
-#if DPDK_CRYPTO==1
-#define ESP_NODE "dpdk-esp-decrypt"
-#else
-#define ESP_NODE "esp-decrypt"
-#endif
-
-#define foreach_ipsec_input_next \
-_(DROP, "error-drop") \
-_(ESP_DECRYPT, ESP_NODE)
-
-#define _(v, s) IPSEC_INPUT_NEXT_##v,
-typedef enum
-{
- foreach_ipsec_input_next
-#undef _
- IPSEC_INPUT_N_NEXT,
-} ipsec_input_next_t;
-
+#include <vnet/ipsec/ah.h>
#define foreach_ipsec_input_error \
_(RX_PKTS, "IPSEC pkts received") \
_(DECRYPTION_FAILED, "IPSEC decryption failed")
-
typedef enum
{
#define _(sym,str) IPSEC_INPUT_ERROR_##sym,
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;
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- c0 =
- vnet_feature_next_with_data (vnet_buffer (b0)->sw_if_index
- [VLIB_RX], &next0, b0,
- sizeof (c0[0]));
+ b0->flags |= VNET_BUFFER_F_IS_IP4;
+ b0->flags &= ~VNET_BUFFER_F_IS_IP6;
+ c0 = vnet_feature_next_with_data (&next0, b0, sizeof (c0[0]));
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))
+ if (PREDICT_TRUE
+ (ip0->protocol == IP_PROTOCOL_IPSEC_ESP
+ || ip0->protocol == IP_PROTOCOL_UDP))
{
#if 0
clib_warning
clib_net_to_host_u16 (ip0->length), spd0->id);
#endif
+ esp0 = (esp_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0));
+ if (PREDICT_FALSE (ip0->protocol == IP_PROTOCOL_UDP))
+ {
+ esp0 =
+ (esp_header_t *) ((u8 *) esp0 + sizeof (udp_header_t));
+ }
+ /* FIXME TODO missing check whether there is enough data inside
+ * IP/UDP to contain ESP header & stuff ? */
p0 = ipsec_input_protect_policy_match (spd0,
clib_net_to_host_u32
(ip0->src_address.
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 = IPSEC_INPUT_NEXT_ESP_DECRYPT;
- vlib_buffer_advance (b0, ip4_header_bytes (ip0));
+ next0 = im->esp_decrypt_next_index;
+ vlib_buffer_advance (b0, ((u8 *) esp0 - (u8 *) 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 ||
+ ip0->protocol == IP_PROTOCOL_UDP)
+ {
+ 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);
+ }
}
}
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (ipsec_input_ip4_node, ipsec_input_ip4_node_fn)
- static vlib_node_registration_t ipsec_input_ip6_node;
+VLIB_NODE_FUNCTION_MULTIARCH (ipsec_input_ip4_node, ipsec_input_ip4_node_fn);
+static vlib_node_registration_t ipsec_input_ip6_node;
- static uword
- ipsec_input_ip6_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+static uword
+ipsec_input_ip6_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
u32 n_left_from, *from, next_index, *to_next;
ipsec_main_t *im = &ipsec_main;
ip4_ipsec_config_t *c0;
ipsec_spd_t *spd0;
ipsec_policy_t *p0 = 0;
+ ah_header_t *ah0;
u32 header_size = sizeof (ip0[0]);
bi0 = to_next[0] = from[0];
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- c0 =
- vnet_feature_next_with_data (vnet_buffer (b0)->sw_if_index
- [VLIB_RX], &next0, b0,
- sizeof (c0[0]));
+ b0->flags |= VNET_BUFFER_F_IS_IP6;
+ b0->flags &= ~VNET_BUFFER_F_IS_IP4;
+ c0 = vnet_feature_next_with_data (&next0, b0, sizeof (c0[0]));
spd0 = pool_elt_at_index (im->spds, c0->spd_index);
ip0 = vlib_buffer_get_current (b0);
esp0 = (esp_header_t *) ((u8 *) ip0 + header_size);
+ ah0 = (ah_header_t *) ((u8 *) ip0 + header_size);
if (PREDICT_TRUE (ip0->protocol == IP_PROTOCOL_IPSEC_ESP))
{
p0->counter.bytes += header_size;
vnet_buffer (b0)->ipsec.sad_index = p0->sa_index;
vnet_buffer (b0)->ipsec.flags = 0;
- next0 = IPSEC_INPUT_NEXT_ESP_DECRYPT;
+ next0 = im->esp_decrypt_next_index;
vlib_buffer_advance (b0, header_size);
goto trace0;
}
}
+ else if (ip0->protocol == IP_PROTOCOL_IPSEC_AH)
+ {
+ p0 = ipsec_input_ip6_protect_policy_match (spd0,
+ &ip0->src_address,
+ &ip0->dst_address,
+ clib_net_to_host_u32
+ (ah0->spi));
+
+ if (PREDICT_TRUE (p0 != 0))
+ {
+ p0->counter.packets++;
+ p0->counter.bytes +=
+ clib_net_to_host_u16 (ip0->payload_length);
+ p0->counter.bytes += header_size;
+ vnet_buffer (b0)->ipsec.sad_index = p0->sa_index;
+ vnet_buffer (b0)->ipsec.flags = 0;
+ next0 = im->ah_decrypt_next_index;
+ goto trace0;
+ }
+ }
trace0:
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
.n_errors = ARRAY_LEN(ipsec_input_error_strings),
.error_strings = ipsec_input_error_strings,
- .n_next_nodes = IPSEC_INPUT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [IPSEC_INPUT_NEXT_##s] = n,
- foreach_ipsec_input_next
-#undef _
- },
+ .sibling_of = "ipsec-input-ip4",
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff