diff options
Diffstat (limited to 'src/plugins/ipsecmb/esp_encrypt.c')
| -rw-r--r-- | src/plugins/ipsecmb/esp_encrypt.c | 651 |
1 files changed, 651 insertions, 0 deletions
diff --git a/src/plugins/ipsecmb/esp_encrypt.c b/src/plugins/ipsecmb/esp_encrypt.c new file mode 100644 index 00000000000..312471c6dcd --- /dev/null +++ b/src/plugins/ipsecmb/esp_encrypt.c @@ -0,0 +1,651 @@ +/* + * esp_encrypt.c : ipsecmb ESP encrypt node + * + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <vnet/vnet.h> +#include <vnet/api_errno.h> +#include <vnet/ip/ip.h> +#include <vnet/udp/udp.h> + +#include <vnet/ipsec/ipsec.h> +#include <vnet/ipsec/esp.h> + +#include <ipsecmb/ipsecmb.h> + +#define foreach_esp_encrypt_next \ + _ (DROP, "error-drop") \ + _ (IP4_LOOKUP, "ip4-lookup") \ + _ (IP6_LOOKUP, "ip6-lookup") \ + _ (INTERFACE_OUTPUT, "interface-output") + +#define _(v, s) ESP_ENCRYPT_NEXT_##v, +typedef enum +{ + foreach_esp_encrypt_next +#undef _ + ESP_ENCRYPT_N_NEXT, +} esp_encrypt_next_t; + +#define foreach_esp_encrypt_error \ + _ (RX_PKTS, "ESP pkts received") \ + _ (NO_BUFFER, "No buffer (packet dropped)") \ + _ (DECRYPTION_FAILED, "ESP encryption failed") \ + _ (SEQ_CYCLED, "sequence number cycled") + +typedef enum +{ +#define _(sym, str) ESP_ENCRYPT_ERROR_##sym, + foreach_esp_encrypt_error +#undef _ + ESP_ENCRYPT_N_ERROR, +} esp_encrypt_error_t; + +typedef struct +{ + u32 spi; + u32 seq; + u8 udp_encap; + ipsec_crypto_alg_t crypto_alg; + ipsec_integ_alg_t integ_alg; +} esp_encrypt_trace_t; + +#ifdef CLIB_MARCH_VARIANT +static inline void +add_random_bytes_from_traffic (ipsecmb_main_t * imbm, + u32 thread_index, void *from, u8 size) +{ + ASSERT (STRUCT_SIZE_OF (random_bytes_t, data) == size); + u32 idx; + random_bytes_t *rb; + ipsecmb_per_thread_data_t *t = &imbm->per_thread_data[thread_index];; + if (PREDICT_TRUE (vec_len (t->rb_recycle_list))) + { + idx = vec_pop (t->rb_recycle_list); + rb = pool_elt_at_index (t->rb_pool, idx); + } + else + { + pool_get (t->rb_pool, rb); + idx = rb - t->rb_pool; + } + clib_memcpy (rb->data, from, STRUCT_SIZE_OF (random_bytes_t, data)); + vec_add1 (t->rb_from_traffic, idx); +} + +static inline int +random_bytes (ipsecmb_main_t * imbm, u32 thread_index, u8 * where, u8 size) +{ + ASSERT (STRUCT_SIZE_OF (random_bytes_t, data) == size); + const u8 block_size = STRUCT_SIZE_OF (random_bytes_t, data); + ipsecmb_per_thread_data_t *t = &imbm->per_thread_data[thread_index];; + if (PREDICT_TRUE (vec_len (t->rb_from_traffic))) + { + u32 idx = vec_pop (t->rb_from_traffic); + random_bytes_t *rb = pool_elt_at_index (t->rb_pool, idx); + clib_memcpy (where, rb->data, block_size); + vec_add1 (t->rb_recycle_list, idx); + return 0; + } + if (PREDICT_FALSE (0 == vec_len (t->rb_from_dev_urandom))) + { + ssize_t bytes_read = read (imbm->dev_urandom_fd, t->urandom_buffer, + sizeof (t->urandom_buffer)); + if (bytes_read < 0) + { + clib_unix_warning ("read() from /dev/urandom failed"); + return -1; + } + if (bytes_read < block_size) + { + clib_unix_warning + ("read() from /dev/urandom produced only %zd bytes", bytes_read); + return -1; + } + const ssize_t limit = clib_min (bytes_read, sizeof (t->urandom_buffer)); + int i; + for (i = 0; limit - i >= block_size && vec_len (t->rb_recycle_list) > 0; + i += block_size) + { + u32 idx = vec_pop (t->rb_recycle_list); + random_bytes_t *rb = pool_elt_at_index (t->rb_pool, idx); + clib_memcpy (rb->data, t->urandom_buffer + i, block_size); + vec_add1 (t->rb_from_dev_urandom, idx); + } + for (; limit - i >= block_size; i += block_size) + { + random_bytes_t *rb; + pool_get (t->rb_pool, rb); + clib_memcpy (rb->data, t->urandom_buffer + i, block_size); + vec_add1 (t->rb_from_dev_urandom, rb - t->rb_pool); + } + } + u32 idx = vec_pop (t->rb_from_dev_urandom); + random_bytes_t *rb = pool_elt_at_index (t->rb_pool, idx); + clib_memcpy (where, rb->data, block_size); + vec_add1 (t->rb_recycle_list, idx); + return 0; +} + +static inline void +esp_finish_encrypt (vlib_main_t * vm, JOB_AES_HMAC * job, + ipsecmb_main_t * imbm, int thread_index, + u32 * bi0, u32 * next0, ipsec_sa_t ** sa0, int is_ip6) +{ + ip4_header_t *oh4 = 0; + udp_header_t *udp = 0; + ip6_header_t *oh6 = 0; + ipsec_main_t *im = &ipsec_main; + *bi0 = (uintptr_t) job->user_data; + vlib_buffer_t *b0 = vlib_get_buffer (vm, *bi0); + u32 sa_index0 = vnet_buffer (b0)->ipsec.sad_index; + *sa0 = pool_elt_at_index (im->sad, sa_index0); + oh4 = vlib_buffer_get_current (b0); + oh6 = vlib_buffer_get_current (b0); + if (is_ip6) + { + oh6->payload_length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (ip6_header_t)); + } + else + { + oh4->length = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); + oh4->checksum = ip4_header_checksum (oh4); + if ((*sa0)->udp_encap) + { + udp = (udp_header_t *) (oh4 + 1); + udp->length = + clib_host_to_net_u16 (clib_net_to_host_u16 (oh4->length) - + ip4_header_bytes (oh4)); + } + } + + *next0 = (uintptr_t) job->user_data2; + const int iv_size = imbm->crypto_algs[(*sa0)->crypto_alg].iv_size; + add_random_bytes_from_traffic (imbm, thread_index, + vlib_buffer_get_current (b0) + + b0->current_length - iv_size, iv_size); + if (!(*sa0)->is_tunnel) + { + *next0 = ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT; + vlib_buffer_advance (b0, -sizeof (ethernet_header_t)); + } +} + +always_inline void +ipsemb_ip4_fill_comon_values (ip4_header_t * oh4, u8 tos) +{ + oh4->ip_version_and_header_length = 0x45; + oh4->tos = tos; + oh4->fragment_id = 0; + oh4->flags_and_fragment_offset = 0; + oh4->ttl = 254; +} + +always_inline void +ipsemb_handle_udp_encap (ipsec_sa_t * sa0, esp_header_t ** esp, + ip4_header_t ** oh4) +{ + if (sa0->udp_encap) + { + *esp = (esp_header_t *) ((u8 *) esp + sizeof (udp_header_t)); + udp_header_t *udp = (udp_header_t *) ((*oh4) + 1); + udp->src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec); + udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec); + udp->checksum = 0; + (*oh4)->protocol = IP_PROTOCOL_UDP; + } + else + { + (*oh4)->protocol = IP_PROTOCOL_IPSEC_ESP; + } +} + +always_inline void +esp_prepare_tunneL_headers (vlib_buffer_t * b0, ipsec_sa_t * sa0, u32 * next0, + u8 * next_hdr_type, ip4_header_t * ih4, + ip4_header_t ** oh4, ip6_header_t * ih6, + ip6_header_t ** oh6, esp_header_t ** esp, + u32 iv_size, int is_ip6) +{ + if (is_ip6) + { + *next0 = ESP_ENCRYPT_NEXT_IP6_LOOKUP; + *next_hdr_type = IP_PROTOCOL_IPV6; + *oh6 = (ip6_header_t *) ((u8 *) ih6 - sizeof (esp_header_t) - + sizeof (ip6_header_t) - iv_size); + (*oh6)->src_address.as_u64[0] = sa0->tunnel_src_addr.ip6.as_u64[0]; + (*oh6)->src_address.as_u64[1] = sa0->tunnel_src_addr.ip6.as_u64[1]; + (*oh6)->dst_address.as_u64[0] = sa0->tunnel_dst_addr.ip6.as_u64[0]; + (*oh6)->dst_address.as_u64[1] = sa0->tunnel_dst_addr.ip6.as_u64[1]; + + vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + vlib_buffer_advance (b0, -(sizeof (esp_header_t) + + sizeof (ip6_header_t) + iv_size)); + (*oh6)->ip_version_traffic_class_and_flow_label = + ih6->ip_version_traffic_class_and_flow_label; + (*oh6)->protocol = IP_PROTOCOL_IPSEC_ESP; + (*oh6)->hop_limit = 254; + *esp = (esp_header_t *) ((*oh6) + 1); + } + else + { /* is ipv4 */ + *next0 = ESP_ENCRYPT_NEXT_IP4_LOOKUP; + u32 udp_hdr_size = 0; + if (sa0->udp_encap) + { + udp_hdr_size = sizeof (udp_header_t); + } + *next_hdr_type = IP_PROTOCOL_IP_IN_IP; + (*oh4) = + (ip4_header_t *) (((u8 *) ih4) - sizeof (ip4_header_t) - + sizeof (esp_header_t) - udp_hdr_size - iv_size); + (*oh4)->src_address.as_u32 = sa0->tunnel_src_addr.ip4.as_u32; + (*oh4)->dst_address.as_u32 = sa0->tunnel_dst_addr.ip4.as_u32; + vlib_buffer_advance (b0, -(sizeof (ip4_header_t) + + sizeof (esp_header_t) + + udp_hdr_size + iv_size)); + vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; + *esp = (esp_header_t *) ((*oh4) + 1); + + ipsemb_ip4_fill_comon_values (*oh4, ih4->tos); + ipsemb_handle_udp_encap (sa0, esp, oh4); + } +} + +always_inline void +esp_prepare_transport_headers (vlib_buffer_t * b0, ipsec_sa_t * sa0, + u32 * next0, u8 * next_hdr_type, + ip4_header_t * ih4, ip4_header_t ** oh4, + ip6_header_t * ih6, ip6_header_t ** oh6, + esp_header_t ** esp, u32 iv_size, int is_ip6) +{ + if (is_ip6) + { + *next0 = ESP_ENCRYPT_NEXT_IP6_LOOKUP; + *next_hdr_type = ih6->protocol; + (*oh6) = (ip6_header_t *) ((u8 *) ih6 - sizeof (esp_header_t) - + iv_size); + if (vnet_buffer (b0)->sw_if_index[VLIB_TX] != ~0) + { + ethernet_header_t *ieh0, *oeh0; + ieh0 = (ethernet_header_t *) vlib_buffer_get_current (b0) - 1; + oeh0 = (ethernet_header_t *) (*oh6) - 1; + clib_memcpy (oeh0, ieh0, sizeof (ethernet_header_t)); + } + (*oh6)->src_address.as_u64[0] = ih6->src_address.as_u64[0]; + (*oh6)->src_address.as_u64[1] = ih6->src_address.as_u64[1]; + (*oh6)->dst_address.as_u64[0] = ih6->dst_address.as_u64[0]; + (*oh6)->dst_address.as_u64[1] = ih6->dst_address.as_u64[1]; + vlib_buffer_advance (b0, -(sizeof (esp_header_t) + iv_size)); + (*oh6)->ip_version_traffic_class_and_flow_label = + ih6->ip_version_traffic_class_and_flow_label; + (*oh6)->protocol = IP_PROTOCOL_IPSEC_ESP; + (*oh6)->hop_limit = 254; + *esp = (esp_header_t *) ((*oh6) + 1); + } + else + { /* is ipv4 */ + *next0 = ESP_ENCRYPT_NEXT_IP4_LOOKUP; + u32 udp_hdr_size = 0; + if (sa0->udp_encap) + { + udp_hdr_size = sizeof (udp_header_t); + } + *next_hdr_type = ih4->protocol; + (*oh4) = (ip4_header_t *) (((u8 *) ih4) - sizeof (esp_header_t) - + udp_hdr_size - iv_size); + if (vnet_buffer (b0)->sw_if_index[VLIB_TX] != ~0) + { + ethernet_header_t *ieh0, *oeh0; + ieh0 = (ethernet_header_t *) vlib_buffer_get_current (b0) - 1; + oeh0 = (ethernet_header_t *) (*oh4) - 1; + clib_memcpy (oeh0, ieh0, sizeof (ethernet_header_t)); + } + (*oh4)->src_address.as_u32 = ih4->src_address.as_u32; + (*oh4)->dst_address.as_u32 = ih4->dst_address.as_u32; + vlib_buffer_advance (b0, + -(sizeof (esp_header_t) + udp_hdr_size + iv_size)); + *esp = (esp_header_t *) ((*oh4) + 1); + + ipsemb_ip4_fill_comon_values (*oh4, ih4->tos); + ipsemb_handle_udp_encap (sa0, esp, oh4); + } +} + +static uword +esp_encrypt_ipsecmb_inline (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame, int is_ip6) +{ + u32 n_left_from, *from, *to_next = 0, next_index; + from = vlib_frame_vector_args (from_frame); + n_left_from = from_frame->n_vectors; + ipsecmb_main_t *imbm = &ipsecmb_main; + ipsec_main_t *im = &ipsec_main; + u32 packets_in_flight = 0; + next_index = node->cached_next_index; + u32 thread_index = vlib_get_thread_index (); + ipsec_alloc_empty_buffers (vm, im); + u32 *to_be_freed = NULL; + ipsecmb_per_thread_data_t *t = &imbm->per_thread_data[thread_index];; + + MB_MGR *mgr = imbm->mb_mgr[thread_index]; + + while (n_left_from > 0 || packets_in_flight > 0) + { + u32 n_left_to_next; + + vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); + + while (n_left_from > 0 && n_left_to_next > 0) + { + u32 bi0, next0; + vlib_buffer_t *b0 = 0; + u32 sa_index0; + ipsec_sa_t *sa0; + ipsecmb_sa_t *samb0; + ip4_header_t *ih4, *oh4 = 0; + ip6_header_t *ih6, *oh6 = 0; + esp_header_t *esp; + u8 next_hdr_type; + + bi0 = from[0]; + from += 1; + n_left_from -= 1; + + next0 = ESP_ENCRYPT_NEXT_DROP; + + b0 = vlib_get_buffer (vm, bi0); + sa_index0 = vnet_buffer (b0)->ipsec.sad_index; + sa0 = pool_elt_at_index (im->sad, sa_index0); + samb0 = pool_elt_at_index (imbm->sad, sa_index0); + + if (esp_seq_advance (sa0)) + { + clib_warning ("sequence number counter has cycled SPI %u", + sa0->spi); + vlib_node_increment_counter (vm, node->node_index, + ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1); + // TODO: rekey SA + to_next[0] = bi0; + to_next += 1; + goto trace; + } + + sa0->total_data_size += b0->current_length; + + if (PREDICT_FALSE (b0->n_add_refs > 0)) + { + vec_add1 (to_be_freed, bi0); + b0 = vlib_buffer_copy (vm, b0); + bi0 = vlib_get_buffer_index (vm, b0); + } + + ih4 = vlib_buffer_get_current (b0); + ih6 = vlib_buffer_get_current (b0); + + const int iv_size = imbm->crypto_algs[sa0->crypto_alg].iv_size; + if (sa0->is_tunnel) + esp_prepare_tunneL_headers (b0, sa0, &next0, &next_hdr_type, ih4, + &oh4, ih6, &oh6, &esp, iv_size, + is_ip6); + else + esp_prepare_transport_headers (b0, sa0, &next0, &next_hdr_type, + ih4, &oh4, ih6, &oh6, &esp, + iv_size, is_ip6); + + + esp->spi = clib_net_to_host_u32 (sa0->spi); + esp->seq = clib_net_to_host_u32 (sa0->seq); + ASSERT (sa0->crypto_alg < IPSEC_CRYPTO_N_ALG); + + esp_footer_t *f0; + const u32 payload_offset = + (u8 *) (esp + 1) + iv_size - (u8 *) vlib_buffer_get_current (b0); + JOB_AES_HMAC *job = IPSECMB_FUNC (get_next_job) (mgr); + if (PREDICT_TRUE (sa0->crypto_alg != IPSEC_CRYPTO_ALG_NONE)) + { + const int block_size = + imbm->crypto_algs[sa0->crypto_alg].block_size; + u32 payload_length = b0->current_length - payload_offset; + int blocks = 1 + (payload_length + 1) / block_size; + + /* pad packet in input buffer */ + u8 pad_bytes = + block_size * blocks - sizeof (esp_footer_t) - payload_length; + u8 i; + u8 *padding = vlib_buffer_get_current (b0) + b0->current_length; + b0->current_length = payload_offset + block_size * blocks; + for (i = 0; i < pad_bytes; ++i) + { + padding[i] = i + 1; + } + f0 = vlib_buffer_get_current (b0) + b0->current_length - + sizeof (esp_footer_t); + f0->pad_length = pad_bytes; + f0->next_header = next_hdr_type; + + random_bytes (imbm, thread_index, (u8 *) (esp + 1), iv_size); + job->iv = (u8 *) (esp + 1); + job->iv_len_in_bytes = iv_size; + } + + job->chain_order = CIPHER_HASH; + job->cipher_direction = ENCRYPT; + job->src = (u8 *) esp; + job->dst = (u8 *) ((u8 *) (esp + 1) + iv_size); + job->cipher_mode = imbm->crypto_algs[sa0->crypto_alg].cipher_mode; + job->aes_enc_key_expanded = samb0->aes_enc_key_expanded; + job->aes_dec_key_expanded = samb0->aes_dec_key_expanded; + job->aes_key_len_in_bytes = sa0->crypto_key_len; + job->cipher_start_src_offset_in_bytes = + sizeof (esp_header_t) + iv_size; + job->hash_start_src_offset_in_bytes = 0; + job->msg_len_to_cipher_in_bytes = + b0->current_length - payload_offset; + if (PREDICT_TRUE (IPSEC_INTEG_ALG_NONE != sa0->integ_alg)) + { + if (sa0->use_esn) + { + *(u32 *) (vlib_buffer_get_current (b0) + + b0->current_length) = sa0->seq_hi; + b0->current_length += sizeof (u32); + } + job->msg_len_to_hash_in_bytes = b0->current_length - + payload_offset + sizeof (esp_header_t) + iv_size; + job->u.HMAC._hashed_auth_key_xor_ipad = samb0->ipad_hash; + job->u.HMAC._hashed_auth_key_xor_opad = samb0->opad_hash; + job->auth_tag_output = + vlib_buffer_get_current (b0) + b0->current_length; + job->auth_tag_output_len_in_bytes = + imbm->integ_algs[sa0->integ_alg].hash_output_length; + b0->current_length += + imbm->integ_algs[sa0->integ_alg].hash_output_length; + } + job->hash_alg = imbm->integ_algs[sa0->integ_alg].hash_alg; + job->user_data = (void *) (uintptr_t) bi0; + job->user_data2 = (void *) (uintptr_t) next0; + job = IPSECMB_FUNC (submit_job) (mgr); + ++packets_in_flight; + + if (!job) + { + continue; + } + + --packets_in_flight; + esp_finish_encrypt (vm, job, imbm, thread_index, &bi0, &next0, &sa0, + is_ip6); + + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + trace: + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + esp_encrypt_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->spi = sa0->spi; + tr->seq = sa0->seq - 1; + tr->udp_encap = sa0->udp_encap; + tr->crypto_alg = sa0->crypto_alg; + tr->integ_alg = sa0->integ_alg; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + + if (PREDICT_FALSE (n_left_from == 0)) + { + JOB_AES_HMAC *job = NULL; + while (n_left_to_next > 0 && (job = IPSECMB_FUNC (flush_job) (mgr))) + { + --packets_in_flight; + u32 bi0, next0; + vlib_buffer_t *b0; + ipsec_sa_t *sa0; + + esp_finish_encrypt (vm, job, imbm, thread_index, &bi0, &next0, + &sa0, is_ip6); + b0 = vlib_get_buffer (vm, bi0); + + to_next[0] = bi0; + to_next += 1; + n_left_to_next -= 1; + + if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) + { + esp_encrypt_trace_t *tr = + vlib_add_trace (vm, node, b0, sizeof (*tr)); + tr->spi = sa0->spi; + tr->seq = sa0->seq - 1; + tr->udp_encap = sa0->udp_encap; + tr->crypto_alg = sa0->crypto_alg; + tr->integ_alg = sa0->integ_alg; + } + + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, + n_left_to_next, bi0, next0); + } + } + + vlib_put_next_frame (vm, node, next_index, n_left_to_next); + } + vlib_node_increment_counter (vm, node->node_index, + ESP_ENCRYPT_ERROR_RX_PKTS, + from_frame->n_vectors); + + if (to_be_freed) + vlib_buffer_free (vm, to_be_freed, vec_len (to_be_freed)); + vec_free (to_be_freed); + if (PREDICT_TRUE (vec_len (t->rb_from_traffic) > 0)) + { + /* recycle traffic generated buffers, because once the packets are sent + * out, bytes from these packets are no longer unpredictable */ + vec_add (t->rb_recycle_list, t->rb_from_traffic, + vec_len (t->rb_from_traffic)); + _vec_len (t->rb_from_traffic) = 0; + } + return from_frame->n_vectors; +} + +VLIB_NODE_FN (esp4_encrypt_ipsecmb_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return esp_encrypt_ipsecmb_inline (vm, node, from_frame, 0 /*is_ip6 */ ); +} + +VLIB_NODE_FN (esp6_encrypt_ipsecmb_node) (vlib_main_t * vm, + vlib_node_runtime_t * node, + vlib_frame_t * from_frame) +{ + return esp_encrypt_ipsecmb_inline (vm, node, from_frame, 1 /*is_ip6 */ ); +} +#endif + +static char *esp_encrypt_error_strings[] = { +#define _(sym, string) string, + foreach_esp_encrypt_error +#undef _ +}; + +/* packet trace format function */ +static u8 * +format_esp_encrypt_trace (u8 * s, va_list * args) +{ + CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); + CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); + esp_encrypt_trace_t *t = va_arg (*args, esp_encrypt_trace_t *); + + s = + format (s, "esp: spi %u seq %u crypto %U integrity %U%s", t->spi, t->seq, + format_ipsec_crypto_alg, t->crypto_alg, format_ipsec_integ_alg, + t->integ_alg, t->udp_encap ? " udp-encap-enabled" : ""); + return s; +} + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (esp4_encrypt_ipsecmb_node) = { + .name = "esp4-encrypt-ipsecmb", + .vector_size = sizeof (u32), + .format_trace = format_esp_encrypt_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN (esp_encrypt_error_strings), + .error_strings = esp_encrypt_error_strings, + + .n_next_nodes = ESP_ENCRYPT_N_NEXT, + .next_nodes = + { +#define _(s, n) [ESP_ENCRYPT_NEXT_##s] = n, + foreach_esp_encrypt_next +#undef _ + }, +}; +/* *INDENT-ON* */ + +/* *INDENT-OFF* */ +VLIB_REGISTER_NODE (esp6_encrypt_ipsecmb_node) = { + .name = "esp6-encrypt-ipsecmb", + .vector_size = sizeof (u32), + .format_trace = format_esp_encrypt_trace, + .type = VLIB_NODE_TYPE_INTERNAL, + + .n_errors = ARRAY_LEN (esp_encrypt_error_strings), + .error_strings = esp_encrypt_error_strings, + + .n_next_nodes = ESP_ENCRYPT_N_NEXT, + .next_nodes = + { +#define _(s, n) [ESP_ENCRYPT_NEXT_##s] = n, + foreach_esp_encrypt_next +#undef _ + }, +}; +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |