csit - Integration tests

diff options

Diffstat (limited to 'docs/report/index.html.template')

-rw-r--r--

docs/report/index.html.template

1 files changed, 12 insertions, 9 deletions

/* * esp_encrypt.c : IPSec 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/crypto/crypto.h> #include <vnet/ipsec/ipsec.h> #include <vnet/ipsec/esp.h> #define foreach_esp_encrypt_next \ _(DROP, "error-drop") \ _(HANDOFF, "handoff") \ _(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") \ _(SEQ_CYCLED, "sequence number cycled (packet dropped)") \ _(CRYPTO_ENGINE_ERROR, "crypto engine error (packet dropped)") \ _(CHAINED_BUFFER, "chained buffers (packet dropped)") \ _(NO_TRAILER_SPACE, "no trailer space (packet dropped)") typedef enum { #define _(sym,str) ESP_ENCRYPT_ERROR_##sym, foreach_esp_encrypt_error #undef _ ESP_ENCRYPT_N_ERROR, } esp_encrypt_error_t; static char *esp_encrypt_error_strings[] = { #define _(sym,string) string, foreach_esp_encrypt_error #undef _ }; typedef struct { u32 sa_index; u32 spi; u32 seq; u32 sa_seq_hi; u8 udp_encap; ipsec_crypto_alg_t crypto_alg; ipsec_integ_alg_t integ_alg; } esp_encrypt_trace_t; /* 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: sa-index %d spi %u (0x%08x) seq %u sa-seq-hi %u crypto %U integrity %U%s", t->sa_index, t->spi, t->spi, t->seq, t->sa_seq_hi, format_ipsec_crypto_alg, t->crypto_alg, format_ipsec_integ_alg, t->integ_alg, t->udp_encap ? " udp-encap-enabled" : ""); return s; } /* pad packet in input buffer */ static_always_inline u8 * esp_add_footer_and_icv (vlib_buffer_t * b, u8 block_size, u8 icv_sz, u16 * next, vlib_node_runtime_t * node, u16 buffer_data_size) { static const u8 pad_data[ESP_MAX_BLOCK_SIZE] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x00, 0x00, }; u16 min_length = b->current_length + sizeof (esp_footer_t); u16 new_length = round_pow2 (min_length, block_size); u8 pad_bytes = new_length - min_length; esp_footer_t *f = (esp_footer_t *) (vlib_buffer_get_current (b) + new_length - sizeof (esp_footer_t)); if (b->current_data + new_length + icv_sz > buffer_data_size) { b->error = node->errors[ESP_ENCRYPT_ERROR_NO_TRAILER_SPACE]; next[0] = ESP_ENCRYPT_NEXT_DROP; return 0; } if (pad_bytes) { ASSERT (pad_bytes <= ESP_MAX_BLOCK_SIZE); pad_bytes = clib_min (ESP_MAX_BLOCK_SIZE, pad_bytes); clib_memcpy_fast ((u8 *) f - pad_bytes, pad_data, pad_bytes); } f->pad_length = pad_bytes; b->current_length = new_length + icv_sz; return &f->next_header; } static_always_inline void esp_update_ip4_hdr (ip4_header_t * ip4, u16 len, int is_transport, int is_udp) { ip_csum_t sum; u16 old_len; len = clib_net_to_host_u16 (len); old_len = ip4->length; if (is_transport) { u8 prot = is_udp ? IP_PROTOCOL_UDP : IP_PROTOCOL_IPSEC_ESP; sum = ip_csum_update (ip4->checksum, ip4->protocol, prot, ip4_header_t, protocol); ip4->protocol = prot; sum = ip_csum_update (sum, old_len, len, ip4_header_t, length); } else sum = ip_csum_update (ip4->checksum, old_len, len, ip4_header_t, length); ip4->length = len; ip4->checksum = ip_csum_fold (sum); } static_always_inline void esp_fill_udp_hdr (ipsec_sa_t * sa, udp_header_t * udp, u16 len) { clib_memcpy_fast (udp, &sa->udp_hdr, sizeof (udp_header_t)); udp->length = clib_net_to_host_u16 (len); } static_always_inline u8 ext_hdr_is_pre_esp (u8 nexthdr) { #ifdef CLIB_HAVE_VEC128 static const u8x16 ext_hdr_types = { IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS, IP_PROTOCOL_IPV6_ROUTE, IP_PROTOCOL_IPV6_FRAGMENTATION, }; return !u8x16_is_all_zero (ext_hdr_types == u8x16_splat (nexthdr)); #else return ((nexthdr ^ IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) | (nexthdr ^ IP_PROTOCOL_IPV6_ROUTE) | (nexthdr ^ IP_PROTOCOL_IPV6_FRAGMENTATION) != 0); #endif } static_always_inline u8 esp_get_ip6_hdr_len (ip6_header_t * ip6, ip6_ext_header_t ** ext_hdr) { /* this code assumes that HbH, route and frag headers will be before others, if that is not the case, they will end up encrypted */ u8 len = sizeof (ip6_header_t); ip6_ext_header_t *p; /* if next packet doesn't have ext header */ if (ext_hdr_is_pre_esp (ip6->protocol) == 0) { *ext_hdr = NULL; return len; } p = (void *) (ip6 + 1); len += ip6_ext_header_len (p); while (ext_hdr_is_pre_esp (p->next_hdr)) { len += ip6_ext_header_len (p); p = ip6_ext_next_header (p); } *ext_hdr = p; return len; } static_always_inline void esp_process_ops (vlib_main_t * vm, vlib_node_runtime_t * node, vnet_crypto_op_t * ops, vlib_buffer_t * b[], u16 * nexts) { u32 n_fail, n_ops = vec_len (ops); vnet_crypto_op_t *op = ops; if (n_ops == 0) return; n_fail = n_ops - vnet_crypto_process_ops (vm, op, n_ops); while (n_fail) { ASSERT (op - ops < n_ops); if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED) { u32 bi = op->user_data; b[bi]->error = node->errors[ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR]; nexts[bi] = ESP_ENCRYPT_NEXT_DROP; n_fail--; } op++; } } typedef struct { u32 salt; u64 iv; } __clib_packed esp_gcm_nonce_t; STATIC_ASSERT_SIZEOF (esp_gcm_nonce_t, 12); always_inline uword esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip6, int is_tun) { ipsec_main_t *im = &ipsec_main; ipsec_per_thread_data_t *ptd = vec_elt_at_index (im->ptd, vm->thread_index); u32 *from = vlib_frame_vector_args (frame); u32 n_left = frame->n_vectors; vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; u16 nexts[VLIB_FRAME_SIZE], *next = nexts; esp_gcm_nonce_t nonces[VLIB_FRAME_SIZE], *nonce = nonces; u32 thread_index = vm->thread_index; u16 buffer_data_size = vlib_buffer_get_default_data_size (vm); u32 current_sa_index = ~0, current_sa_packets = 0; u32 current_sa_bytes = 0, spi = 0; u8 block_sz = 0, iv_sz = 0, icv_sz = 0; ipsec_sa_t *sa0 = 0; vlib_get_buffers (vm, from, b, n_left); vec_reset_length (ptd->crypto_ops); vec_reset_length (ptd->integ_ops); while (n_left > 0) { u32 sa_index0; dpo_id_t *dpo; esp_header_t *esp; u8 *payload, *next_hdr_ptr; u16 payload_len; u32 hdr_len, config_index; if (n_left > 2) { u8 *p; vlib_prefetch_buffer_header (b[2], LOAD); p = vlib_buffer_get_current (b[1]); CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD); p -= CLIB_CACHE_LINE_BYTES; CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD); } if (is_tun) { /* we are on a ipsec tunnel's feature arc */ u32 next0; config_index = b[0]->current_config_index; sa_index0 = *(u32 *) vnet_feature_next_with_data (&next0, b[0], sizeof (sa_index0)); vnet_buffer (b[0])->ipsec.sad_index = sa_index0; next[0] = next0; } else sa_index0 = vnet_buffer (b[0])->ipsec.sad_index; if (sa_index0 != current_sa_index) { if (current_sa_packets) vlib_increment_combined_counter (&ipsec_sa_counters, thread_index, current_sa_index, current_sa_packets, current_sa_bytes); current_sa_packets = current_sa_bytes = 0; sa0 = pool_elt_at_index (im->sad, sa_index0); current_sa_index = sa_index0; spi = clib_net_to_host_u32 (sa0->spi); block_sz = sa0->crypto_block_size; icv_sz = sa0->integ_icv_size; iv_sz = sa0->crypto_iv_size; } if (PREDICT_FALSE (~0 == sa0->encrypt_thread_index)) { /* this is the first packet to use this SA, claim the SA * for this thread. this could happen simultaneously on * another thread */ clib_atomic_cmp_and_swap (&sa0->encrypt_thread_index, ~0, ipsec_sa_assign_thread (thread_index)); } if (PREDICT_TRUE (thread_index != sa0->encrypt_thread_index)) { next[0] = ESP_ENCRYPT_NEXT_HANDOFF; if (is_tun) { b[0]->current_config_index = config_index; } goto trace; } if (vlib_buffer_chain_linearize (vm, b[0]) != 1) { b[0]->error = node->errors[ESP_ENCRYPT_ERROR_CHAINED_BUFFER]; next[0] = ESP_ENCRYPT_NEXT_DROP; goto trace; } if (PREDICT_FALSE (esp_seq_advance (sa0))) { b[0]->error = node->errors[ESP_ENCRYPT_ERROR_SEQ_CYCLED]; next[0] = ESP_ENCRYPT_NEXT_DROP; goto trace; } /* space for IV */ hdr_len = iv_sz; if (ipsec_sa_is_set_IS_TUNNEL (sa0)) { payload = vlib_buffer_get_current (b[0]); next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz, next, node, buffer_data_size); if (!next_hdr_ptr) goto trace; payload_len = b[0]->current_length; /* ESP header */ hdr_len += sizeof (*esp); esp = (esp_header_t *) (payload - hdr_len); /* optional UDP header */ if (ipsec_sa_is_set_UDP_ENCAP (sa0)) { hdr_len += sizeof (udp_header_t); esp_fill_udp_hdr (sa0, (udp_header_t *) (payload - hdr_len), payload_len + hdr_len); } /* IP header */ if (ipsec_sa_is_set_IS_TUNNEL_V6 (sa0)) { ip6_header_t *ip6; u16 len = sizeof (ip6_header_t); hdr_len += len; ip6 = (ip6_header_t *) (payload - hdr_len); clib_memcpy_fast (ip6, &sa0->ip6_hdr, len); *next_hdr_ptr = (is_ip6 ? IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP); len = payload_len + hdr_len - len; ip6->payload_length = clib_net_to_host_u16 (len); } else { ip4_header_t *ip4; u16 len = sizeof (ip4_header_t); hdr_len += len; ip4 = (ip4_header_t *) (payload - hdr_len); clib_memcpy_fast (ip4, &sa0->ip4_hdr, len); *next_hdr_ptr = (is_ip6 ? IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP); len = payload_len + hdr_len; esp_update_ip4_hdr (ip4, len, /* is_transport */ 0, 0); } dpo = &sa0->dpo; if (!is_tun) { next[0] = dpo->dpoi_next_node; vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = dpo->dpoi_index; } } else /* transport mode */ { u8 *l2_hdr, l2_len, *ip_hdr, ip_len; ip6_ext_header_t *ext_hdr; udp_header_t *udp = 0; u8 *old_ip_hdr = vlib_buffer_get_current (b[0]); ip_len = is_ip6 ? esp_get_ip6_hdr_len ((ip6_header_t *) old_ip_hdr, &ext_hdr) : ip4_header_bytes ((ip4_header_t *) old_ip_hdr); vlib_buffer_advance (b[0], ip_len); payload = vlib_buffer_get_current (b[0]); next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz, next, node, buffer_data_size); if (!next_hdr_ptr) goto trace; payload_len = b[0]->current_length; /* ESP header */ hdr_len += sizeof (*esp); esp = (esp_header_t *) (payload - hdr_len); /* optional UDP header */ if (ipsec_sa_is_set_UDP_ENCAP (sa0)) { hdr_len += sizeof (udp_header_t); udp = (udp_header_t *) (payload - hdr_len); } /* IP header */ hdr_len += ip_len; ip_hdr = payload - hdr_len; /* L2 header */ if (!is_tun) { l2_len = vnet_buffer (b[0])->ip.save_rewrite_length; hdr_len += l2_len; l2_hdr = payload - hdr_len; /* copy l2 and ip header */ clib_memcpy_le32 (l2_hdr, old_ip_hdr - l2_len, l2_len); } else l2_len = 0; if (is_ip6) { ip6_header_t *ip6 = (ip6_header_t *) (old_ip_hdr); if (PREDICT_TRUE (NULL == ext_hdr)) { *next_hdr_ptr = ip6->protocol; ip6->protocol = IP_PROTOCOL_IPSEC_ESP; } else { *next_hdr_ptr = ext_hdr->next_hdr; ext_hdr->next_hdr = IP_PROTOCOL_IPSEC_ESP; } ip6->payload_length = clib_host_to_net_u16 (payload_len + hdr_len - l2_len - sizeof (ip6_header_t)); } else { u16 len; ip4_header_t *ip4 = (ip4_header_t *) (old_ip_hdr); *next_hdr_ptr = ip4->protocol; len = payload_len + hdr_len - l2_len; if (udp) { esp_update_ip4_hdr (ip4, len, /* is_transport */ 1, 1); esp_fill_udp_hdr (sa0, udp, len - ip_len); } else esp_update_ip4_hdr (ip4, len, /* is_transport */ 1, 0); } clib_memcpy_le64 (ip_hdr, old_ip_hdr, ip_len); if (!is_tun) next[0] = ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT; } esp->spi = spi; esp->seq = clib_net_to_host_u32 (sa0->seq); if (sa0->crypto_enc_op_id) { vnet_crypto_op_t *op; vec_add2_aligned (ptd->crypto_ops, op, 1, CLIB_CACHE_LINE_BYTES); vnet_crypto_op_init (op, sa0->crypto_enc_op_id); op->src = op->dst = payload; op->key_index = sa0->crypto_key_index; op->len = payload_len - icv_sz; op->user_data = b - bufs; if (ipsec_sa_is_set_IS_AEAD (sa0)) { /* * construct the AAD in a scratch space in front * of the IP header. */ op->aad = payload - hdr_len - sizeof (esp_aead_t); esp_aad_fill (op, esp, sa0); op->tag = payload + op->len; op->tag_len = 16; u64 *iv = (u64 *) (payload - iv_sz); nonce->salt = sa0->salt; nonce->iv = *iv = clib_host_to_net_u64 (sa0->gcm_iv_counter++); op->iv = (u8 *) nonce; nonce++; } else { op->iv = payload - iv_sz; op->flags = VNET_CRYPTO_OP_FLAG_INIT_IV; } } if (sa0->integ_op_id) { vnet_crypto_op_t *op; vec_add2_aligned (ptd->integ_ops, op, 1, CLIB_CACHE_LINE_BYTES); vnet_crypto_op_init (op, sa0->integ_op_id); op->src = payload - iv_sz - sizeof (esp_header_t); op->digest = payload + payload_len - icv_sz; op->key_index = sa0->integ_key_index; op->digest_len = icv_sz; op->len = payload_len - icv_sz + iv_sz + sizeof (esp_header_t); op->user_data = b - bufs; if (ipsec_sa_is_set_USE_ESN (sa0)) { u32 seq_hi = clib_net_to_host_u32 (sa0->seq_hi); clib_memcpy_fast (op->digest, &seq_hi, sizeof (seq_hi)); op->len += sizeof (seq_hi); } } vlib_buffer_advance (b[0], 0LL - hdr_len); current_sa_packets += 1; current_sa_bytes += payload_len; trace: if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) { esp_encrypt_trace_t *tr = vlib_add_trace (vm, node, b[0], sizeof (*tr)); tr->sa_index = sa_index0; tr->spi = sa0->spi; tr->seq = sa0->seq; tr->sa_seq_hi = sa0->seq_hi; tr->udp_encap = ipsec_sa_is_set_UDP_ENCAP (sa0); tr->crypto_alg = sa0->crypto_alg; tr->integ_alg = sa0->integ_alg; } /* next */ n_left -= 1; next += 1; b += 1; } vlib_increment_combined_counter (&ipsec_sa_counters, thread_index, current_sa_index, current_sa_packets, current_sa_bytes); esp_process_ops (vm, node, ptd->crypto_ops, bufs, nexts); esp_process_ops (vm, node, ptd->integ_ops, bufs, nexts); vlib_node_increment_counter (vm, node->node_index, ESP_ENCRYPT_ERROR_RX_PKTS, frame->n_vectors); vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); return frame->n_vectors; } VLIB_NODE_FN (esp4_encrypt_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 0); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp4_encrypt_node) = { .name = "esp4-encrypt", .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 = { [ESP_ENCRYPT_NEXT_DROP] = "ip4-drop", [ESP_ENCRYPT_NEXT_HANDOFF] = "esp4-encrypt-handoff", [ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT] = "interface-output", }, }; /* *INDENT-ON* */ VLIB_NODE_FN (esp6_encrypt_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 0); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp6_encrypt_node) = { .name = "esp6-encrypt", .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 = { [ESP_ENCRYPT_NEXT_DROP] = "ip6-drop", [ESP_ENCRYPT_NEXT_HANDOFF] = "esp6-encrypt-handoff", [ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT] = "interface-output", }, }; /* *INDENT-ON* */ VLIB_NODE_FN (esp4_encrypt_tun_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_encrypt_inline (vm, node, from_frame, 0 /* is_ip6 */ , 1); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp4_encrypt_tun_node) = { .name = "esp4-encrypt-tun", .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 = { [ESP_ENCRYPT_NEXT_DROP] = "ip4-drop", [ESP_ENCRYPT_NEXT_HANDOFF] = "esp4-encrypt-tun-handoff", [ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT] = "error-drop", }, }; VNET_FEATURE_INIT (esp4_encrypt_tun_feat_node, static) = { .arc_name = "ip4-output", .node_name = "esp4-encrypt-tun", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; VNET_FEATURE_INIT (esp6o4_encrypt_tun_feat_node, static) = { .arc_name = "ip6-output", .node_name = "esp4-encrypt-tun", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; VNET_FEATURE_INIT (esp4_ethernet_encrypt_tun_feat_node, static) = { .arc_name = "ethernet-output", .node_name = "esp4-encrypt-tun", .runs_before = VNET_FEATURES ("adj-midchain-tx", "adj-midchain-tx-no-count"), }; /* *INDENT-ON* */ VLIB_NODE_FN (esp6_encrypt_tun_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_encrypt_inline (vm, node, from_frame, 1 /* is_ip6 */ , 1); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp6_encrypt_tun_node) = { .name = "esp6-encrypt-tun", .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 = { [ESP_ENCRYPT_NEXT_DROP] = "ip6-drop", [ESP_ENCRYPT_NEXT_HANDOFF] = "esp6-encrypt-tun-handoff", [ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT] = "error-drop", }, }; VNET_FEATURE_INIT (esp6_encrypt_tun_feat_node, static) = { .arc_name = "ip6-output", .node_name = "esp6-encrypt-tun", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; VNET_FEATURE_INIT (esp4o6_encrypt_tun_feat_node, static) = { .arc_name = "ip4-output", .node_name = "esp6-encrypt-tun", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; /* *INDENT-ON* */ typedef struct { u32 sa_index; } esp_no_crypto_trace_t; static u8 * format_esp_no_crypto_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_no_crypto_trace_t *t = va_arg (*args, esp_no_crypto_trace_t *); s = format (s, "esp-no-crypto: sa-index %u", t->sa_index); return s; } enum { ESP_NO_CRYPTO_NEXT_DROP, ESP_NO_CRYPTO_N_NEXT, }; enum { ESP_NO_CRYPTO_ERROR_RX_PKTS, }; static char *esp_no_crypto_error_strings[] = { "Outbound ESP packets received", }; always_inline uword esp_no_crypto_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs; u16 nexts[VLIB_FRAME_SIZE], *next = nexts; u32 *from = vlib_frame_vector_args (frame); u32 n_left = frame->n_vectors; vlib_get_buffers (vm, from, b, n_left); while (n_left > 0) { u32 next0; u32 sa_index0; /* packets are always going to be dropped, but get the sa_index */ sa_index0 = *(u32 *) vnet_feature_next_with_data (&next0, b[0], sizeof (sa_index0)); next[0] = ESP_NO_CRYPTO_NEXT_DROP; if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED)) { esp_no_crypto_trace_t *tr = vlib_add_trace (vm, node, b[0], sizeof (*tr)); tr->sa_index = sa_index0; } n_left -= 1; next += 1; b += 1; } vlib_node_increment_counter (vm, node->node_index, ESP_NO_CRYPTO_ERROR_RX_PKTS, frame->n_vectors); vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); return frame->n_vectors; } VLIB_NODE_FN (esp4_no_crypto_tun_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_no_crypto_inline (vm, node, from_frame); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp4_no_crypto_tun_node) = { .name = "esp4-no-crypto", .vector_size = sizeof (u32), .format_trace = format_esp_no_crypto_trace, .n_errors = ARRAY_LEN(esp_no_crypto_error_strings), .error_strings = esp_no_crypto_error_strings, .n_next_nodes = ESP_NO_CRYPTO_N_NEXT, .next_nodes = { [ESP_NO_CRYPTO_NEXT_DROP] = "ip4-drop", }, }; VNET_FEATURE_INIT (esp4_no_crypto_tun_feat_node, static) = { .arc_name = "ip4-output", .node_name = "esp4-no-crypto", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; VLIB_NODE_FN (esp6_no_crypto_tun_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * from_frame) { return esp_no_crypto_inline (vm, node, from_frame); } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (esp6_no_crypto_tun_node) = { .name = "esp6-no-crypto", .vector_size = sizeof (u32), .format_trace = format_esp_no_crypto_trace, .n_errors = ARRAY_LEN(esp_no_crypto_error_strings), .error_strings = esp_no_crypto_error_strings, .n_next_nodes = ESP_NO_CRYPTO_N_NEXT, .next_nodes = { [ESP_NO_CRYPTO_NEXT_DROP] = "ip6-drop", }, }; VNET_FEATURE_INIT (esp6_no_crypto_tun_feat_node, static) = { .arc_name = "ip6-output", .node_name = "esp6-no-crypto", .runs_before = VNET_FEATURES ("adj-midchain-tx"), }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


context:
space:
mode: