#include <vnet/ipsec/esp.h>
/* 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") \
+_(NO_TUNNEL, "no matching tunnel")
static char *ipsec_if_input_error_strings[] = {
#define _(sym,string) string,
return s;
}
-static uword
-ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+VLIB_NODE_FN (ipsec_if_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ 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;
- esp_main_t *em = &esp_main;
+ ipsec_proto_main_t *em = &ipsec_proto_main;
u32 *from, *to_next = 0, next_index;
u32 n_left_from, last_sw_if_index = ~0;
- u32 thread_index = vlib_get_thread_index ();
+ 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, n_no_tunnel = 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;
ip4_header_t *ip0;
esp_header_t *esp0;
uword *p;
+ u32 len0;
bi0 = to_next[0] = from[0];
from += 1;
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;
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 += vlib_buffer_length_in_chain (vm, b0);
+ n_bytes += len0;
}
else
{
sa0 = pool_elt_at_index (im->sad, t->input_sa_index);
- icv_len = em->esp_integ_algs[sa0->integ_alg].trunc_size;
+ 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) +
if (last_t)
{
vlib_increment_combined_counter
- (vim->combined_sw_if_counters
- + VNET_INTERFACE_COUNTER_RX,
- thread_index, sw_if_index0, n_packets, n_bytes);
+ (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 = vlib_buffer_length_in_chain (vm, b0);
+ n_bytes = len0;
}
}
else
}
vlib_buffer_advance (b0, ip4_header_bytes (ip0));
- next0 = im->esp_decrypt_next_index;
+ next0 = im->esp4_decrypt_next_index;
+ }
+ else
+ {
+ b0->error = node->errors[IPSEC_IF_INPUT_ERROR_NO_TUNNEL];
+ n_no_tunnel++;
}
+ trace:
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
ipsec_if_input_trace_t *tr =
if (last_t)
{
sa0 = pool_elt_at_index (im->sad, last_t->input_sa_index);
- icv_len = em->esp_integ_algs[sa0->integ_alg].trunc_size;
+ 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 (vim->combined_sw_if_counters
- + VNET_INTERFACE_COUNTER_RX,
+ 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);
+ vlib_node_increment_counter (vm, ipsec_if_input_node.index,
+ IPSEC_IF_INPUT_ERROR_DISABLED, n_no_tunnel);
return from_frame->n_vectors;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ipsec_if_input_node) = {
- .function = ipsec_if_input_node_fn,
.name = "ipsec-if-input",
.vector_size = sizeof (u32),
.format_trace = format_ipsec_if_input_trace,
.n_errors = ARRAY_LEN(ipsec_if_input_error_strings),
.error_strings = ipsec_if_input_error_strings,
- .sibling_of = "ipsec-input-ip4",
+ .sibling_of = "ipsec4-input-feature",
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (ipsec_if_input_node, ipsec_if_input_node_fn)
/*
* fd.io coding-style-patch-verification: ON
*