#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
-
/* Statistics (not really errors) */
-#define foreach_ipsec_if_input_error \
-_(RX, "good packets received")
+#define foreach_ipsec_if_input_error \
+_(RX, "good packets received") \
+_(DISABLED, "ipsec packets received on disabled interface")
static char *ipsec_if_input_error_strings[] = {
#define _(sym,string) string,
IPSEC_IF_INPUT_N_ERROR,
} ipsec_if_input_error_t;
-typedef enum
-{
- IPSEC_IF_INPUT_NEXT_ESP_DECRYPT,
- IPSEC_IF_INPUT_NEXT_DROP,
- IPSEC_IF_INPUT_N_NEXT,
-} ipsec_if_input_next_t;
typedef struct
{
u32 seq;
} ipsec_if_input_trace_t;
-
u8 *
format_ipsec_if_input_trace (u8 * s, va_list * args)
{
vlib_frame_t * from_frame)
{
ipsec_main_t *im = &ipsec_main;
+ vnet_main_t *vnm = im->vnet_main;
+ vnet_interface_main_t *vim = &vnm->interface_main;
+ ipsec_proto_main_t *em = &ipsec_proto_main;
u32 *from, *to_next = 0, next_index;
- u32 n_left_from;
+ u32 n_left_from, last_sw_if_index = ~0;
+ u32 thread_index = vm->thread_index;
+ u64 n_bytes = 0, n_packets = 0;
+ u8 icv_len;
+ ipsec_tunnel_if_t *last_t = NULL;
+ ipsec_sa_t *sa0;
+ vlib_combined_counter_main_t *rx_counter;
+ vlib_combined_counter_main_t *drop_counter;
+ u32 n_disabled = 0;
+
+ rx_counter = vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX;
+ drop_counter = vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0, next0;
+ u32 bi0, next0, sw_if_index0;
vlib_buffer_t *b0;
ip4_header_t *ip0;
esp_header_t *esp0;
uword *p;
+ u32 len0;
bi0 = to_next[0] = from[0];
from += 1;
ip0 = vlib_buffer_get_current (b0);
esp0 = (esp_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0));
- next0 = IPSEC_IF_INPUT_NEXT_DROP;
+ next0 = IPSEC_INPUT_NEXT_DROP;
u64 key = (u64) ip0->src_address.as_u32 << 32 |
(u64) clib_net_to_host_u32 (esp0->spi);
p = hash_get (im->ipsec_if_pool_index_by_key, key);
+ len0 = vlib_buffer_length_in_chain (vm, b0);
+
if (p)
{
ipsec_tunnel_if_t *t;
t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
vnet_buffer (b0)->ipsec.sad_index = t->input_sa_index;
- vnet_buffer (b0)->ipsec.flags =
- t->hw_if_index == ~0 ? IPSEC_FLAG_IPSEC_GRE_TUNNEL : 0;
+ if (t->hw_if_index != ~0)
+ {
+ vnet_hw_interface_t *hi;
+
+ vnet_buffer (b0)->ipsec.flags = 0;
+ hi = vnet_get_hw_interface (vnm, t->hw_if_index);
+ sw_if_index0 = hi->sw_if_index;
+ vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0;
+
+ if (PREDICT_FALSE
+ (!(hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)))
+ {
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, sw_if_index0, 1, len0);
+ b0->error = node->errors[IPSEC_IF_INPUT_ERROR_DISABLED];
+ n_disabled++;
+ goto trace;
+ }
+
+ if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
+ {
+ n_packets++;
+ n_bytes += len0;
+ }
+ else
+ {
+ sa0 = pool_elt_at_index (im->sad, t->input_sa_index);
+ icv_len =
+ em->ipsec_proto_main_integ_algs[sa0->
+ integ_alg].trunc_size;
+
+ /* length = packet length - ESP/tunnel overhead */
+ n_bytes -= n_packets * (sizeof (ip4_header_t) +
+ sizeof (esp_header_t) +
+ sizeof (esp_footer_t) +
+ 16 /* aes-cbc IV */ + icv_len);
+
+ if (last_t)
+ {
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, sw_if_index0,
+ n_packets, n_bytes);
+ }
+
+ last_sw_if_index = sw_if_index0;
+ last_t = t;
+ n_packets = 1;
+ n_bytes = len0;
+ }
+ }
+ else
+ {
+ vnet_buffer (b0)->ipsec.flags = IPSEC_FLAG_IPSEC_GRE_TUNNEL;
+ }
+
vlib_buffer_advance (b0, ip4_header_bytes (ip0));
- next0 = IPSEC_IF_INPUT_NEXT_ESP_DECRYPT;
+ next0 = im->esp_decrypt_next_index;
}
+ trace:
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
ipsec_if_input_trace_t *tr =
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
+ if (last_t)
+ {
+ sa0 = pool_elt_at_index (im->sad, last_t->input_sa_index);
+ icv_len = em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
+
+ n_bytes -= n_packets * (sizeof (ip4_header_t) + sizeof (esp_header_t) +
+ sizeof (esp_footer_t) + 16 /* aes-cbc IV */ +
+ icv_len);
+ vlib_increment_combined_counter (rx_counter,
+ thread_index,
+ last_sw_if_index, n_packets, n_bytes);
+ }
+
vlib_node_increment_counter (vm, ipsec_if_input_node.index,
IPSEC_IF_INPUT_ERROR_RX,
- from_frame->n_vectors);
+ from_frame->n_vectors - n_disabled);
+
+ vlib_node_increment_counter (vm, ipsec_if_input_node.index,
+ IPSEC_IF_INPUT_ERROR_DISABLED, n_disabled);
return from_frame->n_vectors;
}
.n_errors = ARRAY_LEN(ipsec_if_input_error_strings),
.error_strings = ipsec_if_input_error_strings,
- .n_next_nodes = IPSEC_IF_INPUT_N_NEXT,
-
- .next_nodes = {
- [IPSEC_IF_INPUT_NEXT_ESP_DECRYPT] = ESP_NODE,
- [IPSEC_IF_INPUT_NEXT_DROP] = "error-drop",
- },
+ .sibling_of = "ipsec-input-ip4",
};
/* *INDENT-ON* */
Code Review / vpp.git / blobdiff