diff options
Diffstat (limited to 'src/vnet/ipsec/ipsec_if_in.c')
| -rw-r--r-- | src/vnet/ipsec/ipsec_if_in.c | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/src/vnet/ipsec/ipsec_if_in.c b/src/vnet/ipsec/ipsec_if_in.c index 2627e7c1ca6..655668abc1d 100644 --- a/src/vnet/ipsec/ipsec_if_in.c +++ b/src/vnet/ipsec/ipsec_if_in.c @@ -23,8 +23,9 @@ #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") static char *ipsec_if_input_error_strings[] = { #define _(sym,string) string, @@ -73,6 +74,12 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, 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; @@ -91,6 +98,7 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, ip4_header_t *ip0; esp_header_t *esp0; uword *p; + u32 len0; bi0 = to_next[0] = from[0]; from += 1; @@ -108,6 +116,8 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, 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; @@ -122,10 +132,20 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, 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 { @@ -143,15 +163,14 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, 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 @@ -163,6 +182,7 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, next0 = im->esp_decrypt_next_index; } + trace: if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { ipsec_if_input_trace_t *tr = @@ -185,15 +205,17 @@ ipsec_if_input_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, 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); return from_frame->n_vectors; } |