+++ /dev/null
-# Copyright (c) 2018 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.
-
-find_path(IPSECMB_INCLUDE_DIR NAMES intel-ipsec-mb.h HINTS ${IPSECMB_INCLUDE_DIR_HINT})
-find_library(IPSECMB_LIB NAMES libIPSec_MB.a HINTS ${IPSECMB_LIB_DIR_HINT})
-
-if(IPSECMB_INCLUDE_DIR AND IPSECMB_LIB)
-
- get_filename_component(IPSECMB_LIB_DIR ${IPSECMB_LIB} DIRECTORY)
- set(IPSECMB_LINK_FLAGS "${IPSECMB_LINK_FLAGS} -L${IPSECMB_LIB_DIR} -Wl,--whole-archive ${IPSECMB_LIB} -Wl,--no-whole-archive")
- set(IPSECMB_LINK_FLAGS "${IPSECMB_LINK_FLAGS} -Wl,--exclude-libs,libIPSec_MB.a,-l:libIPSec_MB.a")
- include_directories(${IPSECMB_INCLUDE_DIR})
- add_vpp_plugin(ipsecmb
- SOURCES
- ipsecmb.c
- ah_encrypt.c
- ah_decrypt.c
- esp_encrypt.c
- esp_decrypt.c
-
- MULTIARCH_SOURCES
- ah_encrypt.c
- ah_decrypt.c
- esp_encrypt.c
- esp_decrypt.c
-
- LINK_FLAGS
- ${IPSECMB_LINK_FLAGS}
- )
-
- message(STATUS "Intel IPSecMB found: ${IPSECMB_INCLUDE_DIR}")
-else()
- message(STATUS "Intel IPSecMB not found")
-endif()
-
-
+++ /dev/null
-/*
- * ah_decrypt.c : ipsecmb AH decrypt 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/ipsec/ipsec.h>
-#include <vnet/ipsec/esp.h>
-#include <vnet/ipsec/ah.h>
-
-#include <ipsecmb/ipsecmb.h>
-
-#define foreach_ah_decrypt_next \
- _ (DROP, "error-drop") \
- _ (IP4_INPUT, "ip4-input") \
- _ (IP6_INPUT, "ip6-input") \
- _ (IPSEC_GRE_INPUT, "ipsec-gre-input")
-
-#define _(v, s) AH_DECRYPT_NEXT_##v,
-typedef enum
-{
- foreach_ah_decrypt_next
-#undef _
- AH_DECRYPT_N_NEXT,
-} ah_decrypt_next_t;
-
-#define foreach_ah_decrypt_error \
- _ (RX_PKTS, "AH pkts received") \
- _ (DECRYPTION_FAILED, "AH decryption failed") \
- _ (INTEG_ERROR, "Integrity check failed") \
- _ (REPLAY, "SA replayed packet") \
- _ (NOT_IP, "Not IP packet (dropped)")
-
-typedef enum
-{
-#define _(sym, str) AH_DECRYPT_ERROR_##sym,
- foreach_ah_decrypt_error
-#undef _
- AH_DECRYPT_N_ERROR,
-} ah_decrypt_error_t;
-
-static char *ah_decrypt_error_strings[] = {
-#define _(sym, string) string,
- foreach_ah_decrypt_error
-#undef _
-};
-
-typedef struct
-{
- ipsec_integ_alg_t integ_alg;
-} ah_decrypt_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_ah_decrypt_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 *);
- ah_decrypt_trace_t *t = va_arg (*args, ah_decrypt_trace_t *);
-
- s = format (s, "ah: integrity %U", format_ipsec_integ_alg, t->integ_alg);
- return s;
-}
-
-typedef struct
-{
- u8 tos;
- u8 ttl;
- u32 ip_version_traffic_class_and_flow_label;
- u8 hop_limit;
-} ip_mutable_data_t;
-
-#ifdef CLIB_MARCH_VARIANT
-always_inline void
-remove_ah (vlib_main_t * vm, vlib_node_runtime_t * node, u32 * bi0,
- u32 * next0, ipsec_sa_t * sa0, u32 ip_hdr_size, u32 icv_size,
- u8 icv_padding_len, ah_header_t * ah0, int is_ip6)
-{
- vlib_buffer_t *b0 = vlib_get_buffer (vm, *bi0);
-
- if (sa0->is_tunnel)
- { /* tunnel mode */
- vlib_buffer_advance (b0, ip_hdr_size + sizeof (ah_header_t) + icv_size +
- icv_padding_len);
- if (ah0->nexthdr == IP_PROTOCOL_IP_IN_IP)
- *next0 = AH_DECRYPT_NEXT_IP4_INPUT;
- else if (ah0->nexthdr == IP_PROTOCOL_IPV6)
- *next0 = AH_DECRYPT_NEXT_IP6_INPUT;
- else
- {
- clib_warning ("next header: 0x%x", ah0->nexthdr);
- vlib_node_increment_counter (vm, node->node_index,
- AH_DECRYPT_ERROR_DECRYPTION_FAILED, 1);
- *next0 = AH_DECRYPT_NEXT_DROP;
- return;
- }
- }
- else
- { /* transport mode */
- const size_t ip_hdr_offset =
- sizeof (ah_header_t) + icv_size + icv_padding_len;
- if (is_ip6)
- { /* ipv6 */
- ip6_header_t *ih6 =
- (ip6_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
- ip_hdr_offset);
- u8 nexthdr = ah0->nexthdr;
- memmove (ih6, vlib_buffer_get_current (b0), sizeof (ip6_header_t));
- vlib_buffer_advance (b0, ip_hdr_offset);
-
- *next0 = AH_DECRYPT_NEXT_IP6_INPUT;
- ih6->protocol = nexthdr;
- ih6->payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
- }
- else
- { /* ipv4 */
- ip4_header_t *ih4 =
- (ip4_header_t *) ((u8 *) vlib_buffer_get_current (b0) +
- ip_hdr_offset);
- u8 nexthdr = ah0->nexthdr;
- memmove (ih4, vlib_buffer_get_current (b0), sizeof (ip4_header_t));
- vlib_buffer_advance (b0, ip_hdr_offset);
-
- *next0 = AH_DECRYPT_NEXT_IP4_INPUT;
- ih4->ip_version_and_header_length = 0x45;
- ih4->fragment_id = 0;
- ih4->flags_and_fragment_offset = 0;
- ih4->protocol = nexthdr;
- ih4->length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- ih4->checksum = ip4_header_checksum (ih4);
- }
- }
-
- /* for IPSec-GRE tunnel next node is ipsec-gre-input */
- if (PREDICT_FALSE
- ((vnet_buffer (b0)->ipsec.flags & IPSEC_FLAG_IPSEC_GRE_TUNNEL)))
- {
- *next0 = AH_DECRYPT_NEXT_IPSEC_GRE_INPUT;
- }
-}
-
-always_inline void
-ah_finish_decrypt (vlib_main_t * vm, vlib_node_runtime_t * node,
- JOB_AES_HMAC * job, u32 * bi0, u32 * next0, int is_ip6)
-{
- ipsec_main_t *im = &ipsec_main;
- *bi0 = (uintptr_t) job->user_data;
- vlib_buffer_t *b0 = vlib_get_buffer (vm, *bi0);
- ipsec_sa_t *sa0 =
- pool_elt_at_index (im->sad, vnet_buffer (b0)->ipsec.sad_index);
- ipsec_proto_main_t *em = &ipsec_proto_main;
- u32 icv_size = em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
- u32 ip_hdr_size = 0;
- ip4_header_t *ih4 = vlib_buffer_get_current (b0);
- size_t seq_size = 0;
- if (PREDICT_TRUE (sa0->use_esn))
- {
- seq_size = sizeof (u32);
- }
- ip_mutable_data_t *md =
- (ip_mutable_data_t *) ((u8 *) vlib_buffer_get_current (b0) +
- b0->current_length + seq_size + icv_size);
- if (is_ip6)
- {
- ip_hdr_size = sizeof (ip6_header_t);
- ip6_header_t *ih6 = vlib_buffer_get_current (b0);
- ih6->ip_version_traffic_class_and_flow_label =
- md->ip_version_traffic_class_and_flow_label;
- ih6->hop_limit = md->hop_limit;
- }
- else
- {
- ip_hdr_size = ip4_header_bytes (ih4);
- ih4->ttl = md->ttl;
- ih4->tos = md->tos;
- }
-
- u8 icv_padding_len = ah_calc_icv_padding_len (icv_size, is_ip6);
- ah_header_t *ah0 =
- (ah_header_t *) ((u8 *) vlib_buffer_get_current (b0) + ip_hdr_size);
- void *digest = ah0 + 1;
- void *sig = vlib_buffer_get_current (b0) + b0->current_length + seq_size;
-
- if (PREDICT_FALSE (memcmp (digest, sig, icv_size)))
- {
- vlib_node_increment_counter (vm, node->node_index,
- AH_DECRYPT_ERROR_INTEG_ERROR, 1);
- *next0 = AH_DECRYPT_NEXT_DROP;
- return;
- }
-
- if (PREDICT_TRUE (sa0->use_anti_replay))
- {
- if (PREDICT_TRUE (sa0->use_esn))
- esp_replay_advance_esn (sa0, clib_host_to_net_u32 (ah0->seq_no));
- else
- esp_replay_advance (sa0, clib_host_to_net_u32 (ah0->seq_no));
- }
- remove_ah (vm, node, bi0, next0, sa0, ip_hdr_size, icv_size,
- icv_padding_len, ah0, is_ip6);
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-}
-
-always_inline uword
-ah_decrypt_ipsecmb_inline (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame, int is_ip6)
-{
- u32 n_left_from, *from, next_index, *to_next;
- ipsec_main_t *im = &ipsec_main;
- ipsecmb_main_t *imbm = &ipsecmb_main;
- ipsec_proto_main_t *em = &ipsec_proto_main;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- int icv_size = 0;
- u32 thread_index = vlib_get_thread_index ();
- MB_MGR *mgr = imbm->mb_mgr[thread_index];
- u32 packets_in_flight = 0;
-
- next_index = node->cached_next_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;
- u32 next0;
- vlib_buffer_t *b0;
- ah_header_t *ah0;
- ipsec_sa_t *sa0;
- ipsecmb_sa_t *samb0;
- u32 sa_index0 = ~0;
- u32 seq;
- ip4_header_t *ih4 = 0;
- ip6_header_t *ih6 = 0;
- u8 ip_hdr_size = 0;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
-
- next0 = AH_DECRYPT_NEXT_DROP;
-
- b0 = vlib_get_buffer (vm, bi0);
- ih4 = vlib_buffer_get_current (b0);
- ih6 = vlib_buffer_get_current (b0);
-
- 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 (is_ip6)
- {
- ip6_ext_header_t *prev = NULL;
- ip6_ext_header_find_t (ih6, prev, ah0, IP_PROTOCOL_IPSEC_AH);
- ip_hdr_size = sizeof (ip6_header_t);
- ASSERT ((u8 *) ah0 - (u8 *) ih6 == ip_hdr_size);
- }
- else
- {
- ip_hdr_size = ip4_header_bytes (ih4);
- ah0 = (ah_header_t *) (ih4 + 1);
- }
-
- seq = clib_host_to_net_u32 (ah0->seq_no);
- /* anti-replay check */
- // TODO UT remaining
- if (sa0->use_anti_replay)
- {
- int rv = 0;
-
- if (PREDICT_TRUE (sa0->use_esn))
- rv = esp_replay_check_esn (sa0, seq);
- else
- rv = esp_replay_check (sa0, seq);
-
- if (PREDICT_FALSE (rv))
- {
- clib_warning ("anti-replay SPI %u seq %u", sa0->spi, seq);
- vlib_node_increment_counter (vm, node->node_index,
- AH_DECRYPT_ERROR_REPLAY, 1);
- goto trace;
- }
- }
-
- sa0->total_data_size += b0->current_length;
- icv_size =
- em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
- if (PREDICT_TRUE (sa0->integ_alg != IPSEC_INTEG_ALG_NONE))
- {
- u8 *icv = (u8 *) vlib_buffer_get_current (b0) + ip_hdr_size +
- sizeof (ah_header_t);
- size_t seq_size = 0;
- if (PREDICT_TRUE (sa0->use_esn))
- {
- *(u32 *) (vlib_buffer_get_current (b0) +
- b0->current_length) = sa0->seq_hi;
- seq_size = sizeof (u32);
- }
- clib_memcpy (vlib_buffer_get_current (b0) + b0->current_length +
- seq_size, icv, icv_size);
- memset (icv, 0, icv_size);
-
- ip_mutable_data_t *md =
- (ip_mutable_data_t *) ((u8 *) vlib_buffer_get_current (b0) +
- b0->current_length + seq_size +
- icv_size);
- if (is_ip6)
- {
- md->ip_version_traffic_class_and_flow_label =
- ih6->ip_version_traffic_class_and_flow_label;
- md->hop_limit = ih6->hop_limit;
- ih6->ip_version_traffic_class_and_flow_label = 0x60;
- ih6->hop_limit = 0;
- }
- else
- {
- md->tos = ih4->tos;
- md->ttl = ih4->ttl;
- ih4->tos = 0;
- ih4->ttl = 0;
- ih4->checksum = 0;
- ih4->flags_and_fragment_offset = 0;
- }
-
- JOB_AES_HMAC *job = IPSECMB_FUNC (get_next_job) (mgr);
- job->src = vlib_buffer_get_current (b0);
- job->hash_start_src_offset_in_bytes = 0;
- job->cipher_mode = NULL_CIPHER;
- job->hash_alg = imbm->integ_algs[sa0->integ_alg].hash_alg;
- job->auth_tag_output_len_in_bytes =
- imbm->integ_algs[sa0->integ_alg].hash_output_length;
- job->auth_tag_output = icv;
- job->msg_len_to_hash_in_bytes = b0->current_length + seq_size;
- job->cipher_direction = DECRYPT;
- job->chain_order = HASH_CIPHER;
- job->u.HMAC._hashed_auth_key_xor_ipad = samb0->ipad_hash;
- job->u.HMAC._hashed_auth_key_xor_opad = samb0->opad_hash;
-
- job->user_data = (void *) (uintptr_t) bi0;
- job->user_data2 = (void *) (uintptr_t) next0;
- vnet_buffer (b0)->ipsec.sad_index = sa_index0;
- job = IPSECMB_FUNC (submit_job) (mgr);
- ++packets_in_flight;
-
- if (!job)
- {
- continue;
- }
- --packets_in_flight;
- ASSERT (STS_COMPLETED == job->status);
- ah_finish_decrypt (vm, node, job, &bi0, &next0, is_ip6);
- }
- else
- {
- remove_ah (vm, node, &bi0, &next0, sa0, ip_hdr_size, icv_size,
- 0, ah0, is_ip6);
- }
- trace:
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- b0->flags |= VLIB_BUFFER_IS_TRACED;
- ah_decrypt_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->integ_alg = sa0->integ_alg;
- }
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
- }
-
- if (0 == n_left_from)
- {
- JOB_AES_HMAC *job = NULL;
- while (n_left_to_next > 0 && (job = IPSECMB_FUNC (flush_job) (mgr)))
- {
- --packets_in_flight;
- ASSERT (STS_COMPLETED == job->status);
- u32 bi0, next0;
- ah_finish_decrypt (vm, node, job, &bi0, &next0, is_ip6);
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
- vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- ipsec_sa_t *sa0 = pool_elt_at_index (im->sad,
- vnet_buffer
- (b0)->ipsec.sad_index);
- b0->flags |= VLIB_BUFFER_IS_TRACED;
- ah_decrypt_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- 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, AH_DECRYPT_ERROR_RX_PKTS,
- from_frame->n_vectors);
-
- return from_frame->n_vectors;
-}
-
-VLIB_NODE_FN (ah4_decrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return ah_decrypt_ipsecmb_inline (vm, node, from_frame, 0 /*is_ip6 */ );
-}
-
-VLIB_NODE_FN (ah6_decrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return ah_decrypt_ipsecmb_inline (vm, node, from_frame, 1 /*is_ip6 */ );
-}
-#endif
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ah4_decrypt_ipsecmb_node) = {
- .name = "ah4-decrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_ah_decrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN (ah_decrypt_error_strings),
- .error_strings = ah_decrypt_error_strings,
-
- .n_next_nodes = AH_DECRYPT_N_NEXT,
- .next_nodes =
- {
-#define _(s, n) [AH_DECRYPT_NEXT_##s] = n,
- foreach_ah_decrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ah6_decrypt_ipsecmb_node) = {
- .name = "ah6-decrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_ah_decrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN (ah_decrypt_error_strings),
- .error_strings = ah_decrypt_error_strings,
-
- .n_next_nodes = AH_DECRYPT_N_NEXT,
- .next_nodes =
- {
-#define _(s, n) [AH_DECRYPT_NEXT_##s] = n,
- foreach_ah_decrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-/*
- * ah_encrypt.c : ipsecmb AH 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/ipsec/ipsec.h>
-#include <vnet/ipsec/esp.h>
-#include <vnet/ipsec/ah.h>
-
-#include <ipsecmb/ipsecmb.h>
-
-#define foreach_ah_encrypt_next \
-_(DROP, "error-drop") \
-_(IP4_LOOKUP, "ip4-lookup") \
-_(IP6_LOOKUP, "ip6-lookup") \
-_(INTERFACE_OUTPUT, "interface-output")
-
-#define _(v, s) AH_ENCRYPT_NEXT_##v,
-typedef enum
-{
- foreach_ah_encrypt_next
-#undef _
- AH_ENCRYPT_N_NEXT,
-} ah_encrypt_next_t;
-
-#define foreach_ah_encrypt_error \
- _(RX_PKTS, "AH pkts received") \
- _(SEQ_CYCLED, "sequence number cycled")
-
-
-typedef enum
-{
-#define _(sym,str) AH_ENCRYPT_ERROR_##sym,
- foreach_ah_encrypt_error
-#undef _
- AH_ENCRYPT_N_ERROR,
-} ah_encrypt_error_t;
-
-static char *ah_encrypt_error_strings[] = {
-#define _(sym,string) string,
- foreach_ah_encrypt_error
-#undef _
-};
-
-typedef struct
-{
- u32 spi;
- u32 seq;
- ipsec_integ_alg_t integ_alg;
-} ah_encrypt_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_ah_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 *);
- ah_encrypt_trace_t *t = va_arg (*args, ah_encrypt_trace_t *);
-
- s = format (s, "ah: spi %u seq %u integrity %U",
- t->spi, t->seq, format_ipsec_integ_alg, t->integ_alg);
- return s;
-}
-
-#ifdef CLIB_MARCH_VARIANT
-always_inline void
-ah_finish_encrypt (vlib_main_t * vm, vlib_buffer_t * b0, ipsec_sa_t * sa0,
- int is_ip6)
-{
- if (is_ip6)
- {
- ip6_header_t *oh6 = 0;
- oh6 = vlib_buffer_get_current (b0);
- oh6->ip_version_traffic_class_and_flow_label =
- vnet_buffer (b0)->ipsec.ip_version_traffic_class_and_flow_label;
- oh6->hop_limit = vnet_buffer (b0)->ipsec.ttl_or_hop_limit;
- }
- else
- {
- ip4_header_t *oh4 = 0;
- oh4 = vlib_buffer_get_current (b0);
- oh4->ttl = vnet_buffer (b0)->ipsec.ttl_or_hop_limit;
- oh4->tos = vnet_buffer (b0)->ipsec.tos;
- oh4->checksum = ip4_header_checksum (oh4);
- }
-}
-
-always_inline uword
-ah_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;
- int icv_size = 0;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- ipsec_main_t *im = &ipsec_main;
- ipsecmb_main_t *imbm = &ipsecmb_main;
- ipsec_proto_main_t *em = &ipsec_proto_main;
- next_index = node->cached_next_index;
- u32 thread_index = vlib_get_thread_index ();
- MB_MGR *mgr = imbm->mb_mgr[thread_index];
- u32 packets_in_flight = 0;
-
- 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;
- ah_header_t *ah = 0;
- u8 next_hdr_type;
- u8 transport_mode = 0;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
-
- next0 = AH_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 (PREDICT_FALSE (esp_seq_advance (sa0)))
- {
- clib_warning ("sequence number counter has cycled SPI %u",
- sa0->spi);
- vlib_node_increment_counter (vm, node->node_index,
- AH_ENCRYPT_ERROR_SEQ_CYCLED, 1);
- to_next[0] = bi0;
- to_next += 1;
- goto trace;
- }
-
-
- sa0->total_data_size += b0->current_length;
-
- ssize_t adv;
- ih4 = vlib_buffer_get_current (b0);
-
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- if (!is_ip6)
- adv = -sizeof (ip4_and_ah_header_t);
- else
- adv = -sizeof (ip6_and_ah_header_t);
- }
- else
- {
- adv = -sizeof (ah_header_t);
- }
-
- const u8 padding_len = ah_calc_icv_padding_len (icv_size, is_ip6);
- adv -= padding_len;
-
- icv_size =
- em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
- /* transport mode save the eth header before it is overwritten */
- if (PREDICT_FALSE (!sa0->is_tunnel))
- {
- ethernet_header_t *ieh0 = (ethernet_header_t *)
- ((u8 *) vlib_buffer_get_current (b0) -
- sizeof (ethernet_header_t));
- ethernet_header_t *oeh0 =
- (ethernet_header_t *) ((u8 *) ieh0 + (adv - icv_size));
- clib_memcpy (oeh0, ieh0, sizeof (ethernet_header_t));
- }
-
- vlib_buffer_advance (b0, adv - icv_size);
-
- if (is_ip6)
- {
- ih6 = (ip6_header_t *) ih4;
- oh6 = vlib_buffer_get_current (b0);
- ah = (ah_header_t *) (oh6 + 1);
- vnet_buffer (b0)->ipsec.ttl_or_hop_limit = ih6->hop_limit;
- vnet_buffer (b0)->
- ipsec.ip_version_traffic_class_and_flow_label =
- ih6->ip_version_traffic_class_and_flow_label;
-
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- next_hdr_type = IP_PROTOCOL_IPV6;
- }
- else
- {
- next_hdr_type = ih6->protocol;
- memmove (oh6, ih6, sizeof (ip6_header_t));
- }
-
- oh6->protocol = IP_PROTOCOL_IPSEC_AH;
- oh6->ip_version_traffic_class_and_flow_label = 0x60;
- oh6->hop_limit = 0;
- ah->reserved = 0;
- ah->nexthdr = next_hdr_type;
- ah->spi = clib_net_to_host_u32 (sa0->spi);
- ah->seq_no = clib_net_to_host_u32 (sa0->seq);
- ah->hdrlen =
- (sizeof (ah_header_t) + icv_size + padding_len) / 4 - 2;
- oh6->payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
- }
- else
- {
- oh4 = vlib_buffer_get_current (b0);
- memset (oh4, 0, sizeof (*oh4));
- ah = (ah_header_t *) (oh4 + 1);
- memset (ah, 0, sizeof (*ah));
- vnet_buffer (b0)->ipsec.ttl_or_hop_limit = ih4->ttl;
- vnet_buffer (b0)->ipsec.tos = ih4->tos;
-
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- next_hdr_type = IP_PROTOCOL_IP_IN_IP;
- }
- else
- {
- next_hdr_type = ih4->protocol;
- memmove (oh4, ih4, sizeof (ip4_header_t));
- }
-
- oh4->length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- oh4->ip_version_and_header_length = 0x45;
- oh4->fragment_id = 0;
- oh4->flags_and_fragment_offset = 0;
- oh4->ttl = 0;
- oh4->tos = 0;
- oh4->protocol = IP_PROTOCOL_IPSEC_AH;
- ah->spi = clib_net_to_host_u32 (sa0->spi);
- ah->seq_no = clib_net_to_host_u32 (sa0->seq);
- oh4->checksum = 0;
- ah->nexthdr = next_hdr_type;
- ah->hdrlen =
- (sizeof (ah_header_t) + icv_size + padding_len) / 4 - 2;
- }
-
- if (PREDICT_TRUE (!is_ip6 && sa0->is_tunnel && !sa0->is_tunnel_ip6))
- {
- oh4->src_address.as_u32 = sa0->tunnel_src_addr.ip4.as_u32;
- oh4->dst_address.as_u32 = sa0->tunnel_dst_addr.ip4.as_u32;
-
- next0 = AH_ENCRYPT_NEXT_IP4_LOOKUP;
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- }
- else if (is_ip6 && sa0->is_tunnel && sa0->is_tunnel_ip6)
- {
- 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];
- next0 = AH_ENCRYPT_NEXT_IP6_LOOKUP;
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- }
- else
- {
- transport_mode = 1;
- }
-
- memset (ah + 1, 0, icv_size);
-
- JOB_AES_HMAC *job = IPSECMB_FUNC (get_next_job) (mgr);
- job->src = vlib_buffer_get_current (b0);
- job->hash_start_src_offset_in_bytes = 0;
- job->cipher_mode = NULL_CIPHER;
- job->hash_alg = imbm->integ_algs[sa0->integ_alg].hash_alg;
- job->auth_tag_output_len_in_bytes =
- imbm->integ_algs[sa0->integ_alg].hash_output_length;
- job->auth_tag_output = (u8 *) (ah + 1);
- if (PREDICT_TRUE (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;
- job->cipher_direction = ENCRYPT;
- job->chain_order = HASH_CIPHER;
- job->u.HMAC._hashed_auth_key_xor_ipad = samb0->ipad_hash;
- job->u.HMAC._hashed_auth_key_xor_opad = samb0->opad_hash;
-
-
- job->user_data = (void *) (uintptr_t) bi0;
- job->user_data2 = (void *) (uintptr_t) next0;
- vnet_buffer (b0)->ipsec.sad_index = sa_index0;
-
- job = IPSECMB_FUNC (submit_job) (mgr);
- ++packets_in_flight;
-
- if (!job)
- {
- continue;
- }
-
- --packets_in_flight;
- ASSERT (STS_COMPLETED == job->status);
- bi0 = (uintptr_t) job->user_data;
- next0 = (uintptr_t) job->user_data2;
- b0 = vlib_get_buffer (vm, bi0);
- sa0 =
- pool_elt_at_index (im->sad, vnet_buffer (b0)->ipsec.sad_index);
- ah_finish_encrypt (vm, b0, sa0, is_ip6);
- if (!sa0->is_tunnel && !sa0->is_tunnel_ip6)
- {
- next0 = AH_ENCRYPT_NEXT_INTERFACE_OUTPUT;
- vlib_buffer_advance (b0, -sizeof (ethernet_header_t));
- }
-
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
-
- trace:
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- ah_encrypt_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->spi = sa0->spi;
- tr->seq = sa0->seq - 1;
- 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;
-
- ASSERT (STS_COMPLETED == job->status);
- bi0 = (uintptr_t) job->user_data;
- next0 = (uintptr_t) job->user_data2;
- b0 = vlib_get_buffer (vm, bi0);
- sa0 =
- pool_elt_at_index (im->sad,
- vnet_buffer (b0)->ipsec.sad_index);
- ah_finish_encrypt (vm, b0, sa0, is_ip6);
- if (!sa0->is_tunnel && !sa0->is_tunnel_ip6)
- {
- next0 = AH_ENCRYPT_NEXT_INTERFACE_OUTPUT;
- vlib_buffer_advance (b0, -sizeof (ethernet_header_t));
- }
-
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
-
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- ah_encrypt_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->spi = sa0->spi;
- tr->seq = sa0->seq - 1;
- 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, AH_ENCRYPT_ERROR_RX_PKTS,
- from_frame->n_vectors);
-
- return from_frame->n_vectors;
-}
-
-VLIB_NODE_FN (ah4_encrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return ah_encrypt_ipsecmb_inline (vm, node, from_frame, 0 /*is_ip6 */ );
-}
-
-VLIB_NODE_FN (ah6_encrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return ah_encrypt_ipsecmb_inline (vm, node, from_frame, 1 /*is_ip6 */ );
-}
-
-#endif
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ah4_encrypt_ipsecmb_node) = {
- .name = "ah4-encrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_ah_encrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(ah_encrypt_error_strings),
- .error_strings = ah_encrypt_error_strings,
-
- .n_next_nodes = AH_ENCRYPT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [AH_ENCRYPT_NEXT_##s] = n,
- foreach_ah_encrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ah6_encrypt_ipsecmb_node) = {
- .name = "ah6-encrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_ah_encrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(ah_encrypt_error_strings),
- .error_strings = ah_encrypt_error_strings,
-
- .n_next_nodes = AH_ENCRYPT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [AH_ENCRYPT_NEXT_##s] = n,
- foreach_ah_encrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-/*
- * esp_decrypt.c : ipsecmb ESP decrypt 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/ipsec/ipsec.h>
-#include <vnet/ipsec/esp.h>
-#include <ipsecmb/ipsecmb.h>
-
-#define foreach_esp_decrypt_next \
-_(DROP, "error-drop") \
-_(IP4_INPUT, "ip4-input") \
-_(IP6_INPUT, "ip6-input") \
-_(IPSEC_GRE_INPUT, "ipsec-gre-input")
-
-#define _(v, s) ESP_DECRYPT_NEXT_##v,
-typedef enum
-{
- foreach_esp_decrypt_next
-#undef _
- ESP_DECRYPT_N_NEXT,
-} esp_decrypt_next_t;
-
-
-#define foreach_esp_decrypt_error \
- _(RX_PKTS, "ESP pkts received") \
- _(NO_BUFFER, "No buffer (packed dropped)") \
- _(DECRYPTION_FAILED, "ESP decryption failed") \
- _(INTEG_ERROR, "Integrity check failed") \
- _(REPLAY, "SA replayed packet") \
- _(NOT_IP, "Not IP packet (dropped)")
-
-typedef enum
-{
-#define _(sym,str) ESP_DECRYPT_ERROR_##sym,
- foreach_esp_decrypt_error
-#undef _
- ESP_DECRYPT_N_ERROR,
-} esp_decrypt_error_t;
-
-static char *esp_decrypt_error_strings[] = {
-#define _(sym,string) string,
- foreach_esp_decrypt_error
-#undef _
-};
-
-typedef struct
-{
- ipsec_crypto_alg_t crypto_alg;
- ipsec_integ_alg_t integ_alg;
-} esp_decrypt_trace_t;
-
-/* packet trace format function */
-static u8 *
-format_esp_decrypt_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_decrypt_trace_t *t = va_arg (*args, esp_decrypt_trace_t *);
-
- s = format (s, "esp: crypto %U integrity %U",
- format_ipsec_crypto_alg, t->crypto_alg,
- format_ipsec_integ_alg, t->integ_alg);
- return s;
-}
-
-#ifdef CLIB_MARCH_VARIANT
-always_inline void
-esp_finish_decrypt (vlib_main_t * vm, vlib_node_runtime_t * node,
- JOB_AES_HMAC * job, u32 * next0, ipsec_sa_t * sa0,
- int is_ip6)
-{
- u32 bi0 = (uintptr_t) job->user_data;
- vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
- esp_footer_t *f0;
- ip4_header_t *ih4 = vlib_buffer_get_current (b0);
- ip6_header_t *ih6 = vlib_buffer_get_current (b0);
-
- if (NULL_HASH != job->hash_alg)
- {
- if (0 !=
- memcmp (job->auth_tag_output,
- job->auth_tag_output - job->auth_tag_output_len_in_bytes,
- job->auth_tag_output_len_in_bytes))
- {
- vlib_node_increment_counter (vm, node->node_index,
- ESP_DECRYPT_ERROR_INTEG_ERROR, 1);
- *next0 = ESP_DECRYPT_NEXT_DROP;
- return;
- }
- }
-
- f0 = (esp_footer_t *) ((u8 *) vlib_buffer_get_current (b0) +
- b0->current_length);
- b0->current_length -= f0->pad_length;
-
- /* tunnel mode */
- if (sa0->is_tunnel)
- {
- if (f0->next_header == IP_PROTOCOL_IP_IN_IP)
- {
- *next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
- }
- else if (f0->next_header == IP_PROTOCOL_IPV6)
- {
- *next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
- }
- else
- {
- vlib_node_increment_counter (vm, node->node_index,
- ESP_DECRYPT_ERROR_DECRYPTION_FAILED,
- 1);
- *next0 = ESP_DECRYPT_NEXT_DROP;
- return;
- }
- }
- /* transport mode */
- else
- {
- if (is_ip6)
- {
- *next0 = ESP_DECRYPT_NEXT_IP6_INPUT;
- ih6->protocol = f0->next_header;
- ih6->payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
- }
- else
- {
- *next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
- ih4->fragment_id = 0;
- ih4->flags_and_fragment_offset = 0;
- ih4->protocol = f0->next_header;
- ih4->length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- ih4->checksum = ip4_header_checksum (ih4);
- }
- }
-
- /* for IPSec-GRE tunnel next node is ipsec-gre-input */
- if ((vnet_buffer (b0)->ipsec.flags & IPSEC_FLAG_IPSEC_GRE_TUNNEL))
- {
- *next0 = ESP_DECRYPT_NEXT_IPSEC_GRE_INPUT;
- }
-
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- if (sa0->use_anti_replay)
- {
- if (sa0->use_esn)
- esp_replay_advance_esn (sa0, vnet_buffer (b0)->ipsec.seq);
- else
- esp_replay_advance (sa0, vnet_buffer (b0)->ipsec.seq);
- }
-}
-
-always_inline uword
-esp_decrypt_ipsecmb_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * from_frame, int is_ip6)
-{
- u32 n_left_from, *from, next_index, *to_next;
- u32 packets_in_flight = 0;
- ipsec_main_t *im = &ipsec_main;
- ipsecmb_main_t *imbm = &ipsecmb_main;
- ipsec_proto_main_t *em = &ipsec_proto_main;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- u32 thread_index = vlib_get_thread_index ();
- MB_MGR *mgr = imbm->mb_mgr[thread_index];
- u32 *to_be_freed = NULL;
-
- next_index = node->cached_next_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;
- esp_header_t *esp0;
- ipsec_sa_t *sa0;
- ipsecmb_sa_t *samb0;
- u32 sa_index0 = ~0;
- u32 seq;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
-
- next0 = ESP_DECRYPT_NEXT_DROP;
-
- b0 = vlib_get_buffer (vm, bi0);
- esp0 = vlib_buffer_get_current (b0);
-
- 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);
-
- vnet_buffer (b0)->ipsec.seq = seq =
- clib_host_to_net_u32 (esp0->seq);
-
- /* anti-replay check */
- if (sa0->use_anti_replay)
- {
- int rv = 0;
-
- if (sa0->use_esn)
- rv = esp_replay_check_esn (sa0, seq);
- else
- rv = esp_replay_check (sa0, seq);
-
- if (PREDICT_FALSE (rv))
- {
- vlib_node_increment_counter (vm, node->node_index,
- ESP_DECRYPT_ERROR_REPLAY, 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);
- }
-
- JOB_AES_HMAC *job = IPSECMB_FUNC (get_next_job) (mgr);
- int trunc_size = 0;
- if (sa0->integ_alg != IPSEC_INTEG_ALG_NONE)
- {
- trunc_size =
- em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
- // put calculated auth tag after in-packet auth tag
- job->auth_tag_output =
- vlib_buffer_get_current (b0) + b0->current_length;
- b0->current_length -= trunc_size;
- job->msg_len_to_hash_in_bytes = b0->current_length;
- job->auth_tag_output_len_in_bytes = trunc_size;
- job->u.HMAC._hashed_auth_key_xor_ipad = samb0->ipad_hash;
- job->u.HMAC._hashed_auth_key_xor_opad = samb0->opad_hash;
- }
-
- job->hash_alg = imbm->integ_algs[sa0->integ_alg].hash_alg;
- u8 ip_hdr_size = 0;
-
- if ((sa0->crypto_alg >= IPSEC_CRYPTO_ALG_AES_CBC_128 &&
- sa0->crypto_alg <= IPSEC_CRYPTO_ALG_AES_CBC_256) ||
- (sa0->crypto_alg >= IPSEC_CRYPTO_ALG_DES_CBC &&
- sa0->crypto_alg <= IPSEC_CRYPTO_ALG_3DES_CBC))
- {
- const int block_size =
- em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].block_size;
- const int iv_size =
- em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size;
-
- int blocks =
- (b0->current_length - sizeof (esp_header_t) -
- iv_size) / block_size;
- if (b0->current_length - sizeof (esp_header_t) - iv_size <
- block_size || blocks <= 0)
- {
- vlib_node_increment_counter (vm, node->node_index,
- ESP_DECRYPT_ERROR_INTEG_ERROR,
- 1);
- goto trace;
- }
-
- /* transport mode */
- if (!sa0->is_tunnel)
- {
- if (b0->flags & VNET_BUFFER_F_L3_HDR_OFFSET_VALID)
- {
- if (is_ip6)
- {
- ip_hdr_size = sizeof (ip6_header_t);
- }
- else
- {
- ip_hdr_size = sizeof (ip4_header_t);
- }
- }
- else
- {
- vlib_node_increment_counter (vm, node->node_index,
- ESP_DECRYPT_ERROR_NOT_IP,
- 1);
- goto trace;
- }
- }
-
- job->chain_order = HASH_CIPHER;
- job->cipher_direction = DECRYPT;
- job->src = (u8 *) esp0;
- job->dst = (u8 *) esp0;
- vlib_buffer_advance (b0, -ip_hdr_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->iv = esp0->data;
- job->iv_len_in_bytes = iv_size;
- job->msg_len_to_cipher_in_bytes = blocks * block_size;
- job->cipher_start_src_offset_in_bytes =
- sizeof (esp_header_t) + iv_size;
- job->hash_start_src_offset_in_bytes = 0;
-
- job->user_data = (void *) (uintptr_t) bi0;
- job->user_data2 = sa0;
- b0->current_length =
- (blocks * block_size) - sizeof (esp_footer_t) + ip_hdr_size;
- ASSERT ((u8 *) vlib_buffer_get_current (b0) +
- b0->current_length < job->auth_tag_output);
- b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
-
- job = IPSECMB_FUNC (submit_job) (mgr);
- ++packets_in_flight;
-
- if (!job)
- {
- continue;
- }
-
- --packets_in_flight;
-
- sa0 = job->user_data2;
- bi0 = (uintptr_t) job->user_data;
- b0 = vlib_get_buffer (vm, bi0);
- esp_finish_decrypt (vm, node, job, &next0, sa0, is_ip6);
-
- trace:
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
-
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- esp_decrypt_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- 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 && packets_in_flight > 0))
- {
- JOB_AES_HMAC *job = NULL;
- while (n_left_to_next > 0 && (job = IPSECMB_FUNC (flush_job) (mgr)))
- {
- --packets_in_flight;
- u32 bi0, next0;
- bi0 = (uintptr_t) job->user_data;
- vlib_buffer_t *i_b0 = vlib_get_buffer (vm, bi0);
-
- ipsec_sa_t *sa0 = job->user_data2;
- esp_finish_decrypt (vm, node, job, &next0, sa0, is_ip6);
-
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
-
- if (PREDICT_FALSE (i_b0->flags & VLIB_BUFFER_IS_TRACED))
- {
- esp_decrypt_trace_t *tr =
- vlib_add_trace (vm, node, i_b0, sizeof (*tr));
- 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_DECRYPT_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);
- return from_frame->n_vectors;
-}
-
-VLIB_NODE_FN (esp4_decrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return esp_decrypt_ipsecmb_inline (vm, node, from_frame, 0 /*is_ip6 */ );
-}
-
-VLIB_NODE_FN (esp6_decrypt_ipsecmb_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- return esp_decrypt_ipsecmb_inline (vm, node, from_frame, 1 /*is_ip6 */ );
-}
-#endif
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (esp4_decrypt_ipsecmb_node) = {
- .name = "esp4-decrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_esp_decrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
- .error_strings = esp_decrypt_error_strings,
-
- .n_next_nodes = ESP_DECRYPT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
- foreach_esp_decrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (esp6_decrypt_ipsecmb_node) = {
- .name = "esp6-decrypt-ipsecmb",
- .vector_size = sizeof (u32),
- .format_trace = format_esp_decrypt_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
-
- .n_errors = ARRAY_LEN(esp_decrypt_error_strings),
- .error_strings = esp_decrypt_error_strings,
-
- .n_next_nodes = ESP_DECRYPT_N_NEXT,
- .next_nodes = {
-#define _(s,n) [ESP_DECRYPT_NEXT_##s] = n,
- foreach_esp_decrypt_next
-#undef _
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-/*
- * 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:
- */
+++ /dev/null
-/*
- * init.c : ipsecmb common code
- *
- * 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 <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <vnet/plugin/plugin.h>
-#include <vpp/app/version.h>
-#include <ipsecmb/ipsecmb.h>
-ipsecmb_main_t ipsecmb_main;
-
-int
-sa_expand_keys (u32 sa_index)
-{
- ipsecmb_main_t *imbm = &ipsecmb_main;
- ipsec_sa_t *sa = pool_elt_at_index (ipsec_main.sad, sa_index);
- ipsecmb_sa_t *samb = pool_elt_at_index (imbm->sad, sa_index);
- if (sa->crypto_key_len > 0)
- {
- const keyexp_t keyexp_fn = imbm->crypto_algs[sa->crypto_alg].keyexp_fn;
- keyexp_fn (sa->crypto_key, samb->aes_enc_key_expanded,
- samb->aes_dec_key_expanded);
- }
- if (sa->integ_key_len > 0)
- {
- const u8 block_size = imbm->integ_algs[sa->integ_alg].block_size;
- const hash_one_block_t hash_one_block_fn =
- imbm->integ_algs[sa->integ_alg].hash_one_block_fn;
- u8 buf[block_size];
- int i = 0;
- if (sa->integ_key_len > block_size)
- {
- return VNET_API_ERROR_SYSCALL_ERROR_1; // FIXME use correct value
- }
- memset (buf, 0x36, sizeof (buf));
- for (i = 0; i < sa->integ_key_len; i++)
- {
- buf[i] ^= sa->integ_key[i];
- }
- hash_one_block_fn (buf, samb->ipad_hash);
-
- memset (buf, 0x5c, sizeof (buf));
- for (i = 0; i < sa->integ_key_len; i++)
- {
- buf[i] ^= sa->integ_key[i];
- }
- hash_one_block_fn (buf, samb->opad_hash);
- }
- return 0;
-}
-
-static clib_error_t *
-ipsecmb_add_del_sa_session (u32 sa_index, u8 is_add)
-{
- ipsecmb_main_t *imbm = &ipsecmb_main;
- if (is_add)
- {
- ipsecmb_sa_t *samb = NULL;
- pool_get (imbm->sad, samb);
- ASSERT (samb == pool_elt_at_index (imbm->sad, sa_index));
- sa_expand_keys (sa_index);
- }
- else
- {
- pool_put_index (imbm->sad, sa_index);
- }
- return 0;
-}
-
-clib_error_t *
-ipsecmb_check_esp_support (ipsec_sa_t * sa)
-{
- switch (sa->crypto_alg)
- {
- case IPSEC_CRYPTO_ALG_NONE:
- break;
- case IPSEC_CRYPTO_ALG_DES_CBC:
- case IPSEC_CRYPTO_ALG_3DES_CBC:
- return clib_error_return (0, "unsupported (3)des crypto-alg");
- case IPSEC_CRYPTO_ALG_AES_CBC_128:
- case IPSEC_CRYPTO_ALG_AES_CBC_192:
- case IPSEC_CRYPTO_ALG_AES_CBC_256:
- break;
- case IPSEC_CRYPTO_ALG_AES_CTR_128:
- case IPSEC_CRYPTO_ALG_AES_CTR_192:
- case IPSEC_CRYPTO_ALG_AES_CTR_256:
- return clib_error_return (0, "unsupported aes-ctr crypto-alg");
- case IPSEC_CRYPTO_ALG_AES_GCM_128:
- case IPSEC_CRYPTO_ALG_AES_GCM_192:
- case IPSEC_CRYPTO_ALG_AES_GCM_256:
- return clib_error_return (0, "unsupported aes-gcm crypto-alg");
- case IPSEC_CRYPTO_N_ALG:
- return clib_error_return (0, "invalid crypto-alg");
- }
-
- switch (sa->integ_alg)
- {
- case IPSEC_INTEG_ALG_NONE:
- return clib_error_return (0, "unsupported none integ-alg");
- case IPSEC_INTEG_ALG_MD5_96:
- return clib_error_return (0, "unsupported md5 integ-alg");
- case IPSEC_INTEG_ALG_SHA1_96:
- case IPSEC_INTEG_ALG_SHA_256_96:
- case IPSEC_INTEG_ALG_SHA_256_128:
- case IPSEC_INTEG_ALG_SHA_384_192:
- case IPSEC_INTEG_ALG_SHA_512_256:
- break;
- case IPSEC_INTEG_N_ALG:
- return clib_error_return (0, "invalid integ-alg");
- }
- return 0;
-}
-
-clib_error_t *
-ipsecmb_check_ah_support (ipsec_sa_t * sa)
-{
- switch (sa->integ_alg)
- {
- case IPSEC_INTEG_ALG_NONE:
- return clib_error_return (0, "unsupported none integ-alg");
- case IPSEC_INTEG_ALG_MD5_96:
- return clib_error_return (0, "unsupported md5 integ-alg");
- case IPSEC_INTEG_ALG_SHA1_96:
- case IPSEC_INTEG_ALG_SHA_256_96:
- case IPSEC_INTEG_ALG_SHA_256_128:
- case IPSEC_INTEG_ALG_SHA_384_192:
- case IPSEC_INTEG_ALG_SHA_512_256:
- break;
- case IPSEC_INTEG_N_ALG:
- return clib_error_return (0, "invalid integ-alg");
- }
- return 0;
-}
-
-static clib_error_t *
-ipsecmb_init (vlib_main_t * vm)
-{
- ipsecmb_main_t *imbm = &ipsecmb_main;
- imbm->dev_urandom_fd = open ("/dev/urandom", O_RDONLY);
- if (!imbm->dev_urandom_fd)
- {
- return clib_error_return_unix_fatal (0,
- "Can't open /dev/urandom for read");
- }
-
- vlib_thread_main_t *tm = vlib_get_thread_main ();
-
- imbm->crypto_algs = NULL;
- imbm->integ_algs = NULL;
-
- vec_validate (imbm->crypto_algs, IPSEC_CRYPTO_N_ALG - 1);
- vec_validate (imbm->integ_algs, IPSEC_INTEG_N_ALG - 1);
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].block_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].block_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].block_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_DES_CBC].block_size = 8;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_3DES_CBC].block_size = 8;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].iv_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].iv_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].iv_size = 16;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_DES_CBC].iv_size = 8;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_3DES_CBC].iv_size = 8;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].cipher_mode = CBC;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].cipher_mode = CBC;
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].cipher_mode = CBC;
-
- ipsecmb_integ_alg_t *i;
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA1_96];
- i->hash_alg = SHA1;
- i->block_size = SHA1_BLOCK_SIZE;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_96];
- i->hash_alg = SHA_256;
- i->block_size = SHA_256_BLOCK_SIZE;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_128];
- i->hash_alg = SHA_256;
- i->block_size = SHA_256_BLOCK_SIZE;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_384_192];
- i->hash_alg = SHA_384;
- i->block_size = SHA_384_BLOCK_SIZE;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_512_256];
- i->hash_alg = SHA_512;
- i->block_size = SHA_512_BLOCK_SIZE;
-
- vec_validate (imbm->mb_mgr, tm->n_vlib_mains - 1);
- MB_MGR **mgr;
-#define __set_funcs(arch) \
- do \
- { \
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_128].keyexp_fn = \
- aes_keyexp_128_##arch; \
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_192].keyexp_fn = \
- aes_keyexp_192_##arch; \
- imbm->crypto_algs[IPSEC_CRYPTO_ALG_AES_CBC_256].keyexp_fn = \
- aes_keyexp_256_##arch; \
- imbm->integ_algs[IPSEC_INTEG_ALG_SHA1_96].hash_one_block_fn = \
- sha1_one_block_##arch; \
- imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_96].hash_one_block_fn = \
- sha256_one_block_##arch; \
- imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_128].hash_one_block_fn = \
- sha256_one_block_##arch; \
- imbm->integ_algs[IPSEC_INTEG_ALG_SHA_384_192].hash_one_block_fn = \
- sha384_one_block_##arch; \
- imbm->integ_algs[IPSEC_INTEG_ALG_SHA_512_256].hash_one_block_fn = \
- sha512_one_block_##arch; \
- } \
- while (0);
-
- if (clib_cpu_supports_avx512f ())
- {
- __set_funcs (avx512);
- vec_foreach (mgr, imbm->mb_mgr)
- {
- *mgr = alloc_mb_mgr (0);
- init_mb_mgr_avx512 (*mgr);
- }
- }
- else if (clib_cpu_supports_avx2 ())
- {
- __set_funcs (avx2);
- vec_foreach (mgr, imbm->mb_mgr)
- {
- *mgr = alloc_mb_mgr (0);
- init_mb_mgr_avx2 (*mgr);
- }
- }
- else
- {
- __set_funcs (sse);
- vec_foreach (mgr, imbm->mb_mgr)
- {
- *mgr = alloc_mb_mgr (0);
- init_mb_mgr_sse (*mgr);
- }
- }
-#undef __set_funcs
-
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA1_96];
- i->hash_output_length = 12;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_96];
- i->hash_output_length = 12;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_256_128];
- i->hash_output_length = 16;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_384_192];
- i->hash_output_length = 24;
-
- i = &imbm->integ_algs[IPSEC_INTEG_ALG_SHA_512_256];
- i->hash_output_length = 32;
-
- vec_validate (imbm->per_thread_data, tm->n_vlib_mains - 1);
-
- return 0;
-}
-
-VLIB_INIT_FUNCTION (ipsecmb_init);
-
-static uword
-ipsecmb_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- ipsec_main_t *im = &ipsec_main;
- ipsec_register_ah_backend (vm, im, "ipsecmb backend",
- "ah4-encrypt-ipsecmb",
- "ah4-decrypt-ipsecmb",
- "ah6-encrypt-ipsecmb",
- "ah6-decrypt-ipsecmb",
- ipsecmb_check_ah_support,
- ipsecmb_add_del_sa_session);
-
- ipsec_register_esp_backend (vm, im, "ipsecmb backend",
- "esp4-encrypt-ipsecmb",
- "esp4-decrypt-ipsecmb",
- "esp6-encrypt-ipsecmb",
- "esp6-decrypt-ipsecmb",
- ipsecmb_check_esp_support,
- ipsecmb_add_del_sa_session);
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ipsecmb_process_node, static) = {
- .function = ipsecmb_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "ipsecmb-process",
- .process_log2_n_stack_bytes = 17,
-};
-
-/* *INDENT-OFF* */
-VLIB_PLUGIN_REGISTER () = {
- .version = VPP_BUILD_VER,
- .description = "IPsecMB plugin",
- .default_disabled = 1,
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+++ /dev/null
-#ifndef __included_ipsecmb_h__
-#define __included_ipsecmb_h__
-
-#include <vppinfra/types.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/warnings.h>
-#include <vnet/ipsec/ipsec.h>
-
-WARN_OFF (attributes);
-
-#ifdef always_inline
-#undef always_inline
-#define __need_redefine__
-#endif
-
-#include <intel-ipsec-mb.h>
-
-#ifdef __need_redefine__
-#if CLIB_DEBUG > 0
-#define always_inline static inline
-#else
-#define always_inline static inline __attribute__ ((__always_inline__))
-#endif
-#endif // __need_redefine__
-WARN_ON (attributes);
-
-typedef struct
-{
- keyexp_t keyexp_fn;
- JOB_CIPHER_MODE cipher_mode;
- u8 key_len;
- u8 iv_size;
- u8 block_size;
-} ipsecmb_crypto_alg_t;
-
-typedef struct
-{
- hash_one_block_t hash_one_block_fn;
- u8 block_size;
- JOB_HASH_ALG hash_alg;
- u8 hash_output_length;
-} ipsecmb_integ_alg_t;
-
-typedef struct
-{
- u8 aes_enc_key_expanded[16 * 15] __attribute__ ((aligned (16)));
- u8 aes_dec_key_expanded[16 * 15] __attribute__ ((aligned (16)));
- u8 ipad_hash[256] __attribute__ ((aligned (16)));
- u8 opad_hash[256] __attribute__ ((aligned (16)));
-} ipsecmb_sa_t;
-
-typedef struct
-{
- u8 data[16];
-} random_bytes_t;
-
-typedef u8 urandom_buffer_t[4096];
-
-typedef struct
-{
- /** read buffer for random data from /dev/urandom */
- urandom_buffer_t urandom_buffer;
- /** pool of all the random_bytes_t objects ever allocated */
- random_bytes_t *rb_pool;
- /** vector of random_bytes_t objects containing random bytes */
- u32 *rb_from_dev_urandom;
- /** vector of used random_bytes_t objects */
- u32 *rb_recycle_list;
- /** vector of random bytes collected from encrypted data */
- u32 *rb_from_traffic;
-} ipsecmb_per_thread_data_t;
-
-typedef struct
-{
- ipsecmb_crypto_alg_t *crypto_algs;
- ipsecmb_integ_alg_t *integ_algs;
- MB_MGR **mb_mgr;
- ipsecmb_sa_t *sad;
- ipsecmb_per_thread_data_t *per_thread_data;
- int dev_urandom_fd;
-} ipsecmb_main_t;
-
-extern ipsecmb_main_t ipsecmb_main;
-
-#define P(x,y) x ## _ ## y
-#define E(x,y) P(x,y)
-#define IPSECMB_FUNC(f) E(f,CLIB_MARCH_VARIANT)
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
-
-#endif /* __included_ipsecmb_h__ */
{
u32 flags;
u32 sad_index;
- u32 ip_version_traffic_class_and_flow_label;
- u8 tos;
- u8 ttl_or_hop_limit;
- u32 seq;
} ipsec;
/* MAP */
from template_ipsec import TemplateIpsec
-class TemplateIPSecNAT(TemplateIpsec):
+class IPSecNATTestCase(TemplateIpsec):
""" IPSec/NAT
TUNNEL MODE:
@classmethod
def setUpClass(cls):
- super(TemplateIPSecNAT, cls).setUpClass()
+ super(IPSecNATTestCase, cls).setUpClass()
cls.tun_if = cls.pg0
cls.vapi.ipsec_spd_add_del(cls.tun_spd_id)
cls.vapi.ipsec_interface_add_del_spd(cls.tun_spd_id,
self.pg_start()
capture = self.pg1.get_capture(len(pkts))
self.verify_capture_plain(capture)
-
-
-class IPSecNAT(TemplateIPSecNAT):
- """ IPSec/NAT """
- pass
+++ /dev/null
-from test_ipsec_ah import TemplateIpsecAh
-from template_ipsec import IpsecTraTests, IpsecTunTests, IpsecTcpTests
-
-
-class TestIpsecMBAh1(TemplateIpsecAh, IpsecTraTests, IpsecTunTests):
- """ IpsecMB AH - TUN & TRA tests """
- extra_vpp_plugin_config = [
- "plugin", "ipsecmb_plugin.so", "{", "enable", "}"]
-
- tra4_encrypt_node_name = "ah4-encrypt-ipsecmb"
- tra4_decrypt_node_name = "ah4-decrypt-ipsecmb"
- tra6_encrypt_node_name = "ah6-encrypt-ipsecmb"
- tra6_decrypt_node_name = "ah6-decrypt-ipsecmb"
- tun4_encrypt_node_name = "ah4-encrypt-ipsecmb"
- tun4_decrypt_node_name = "ah4-decrypt-ipsecmb"
- tun6_encrypt_node_name = "ah6-encrypt-ipsecmb"
- tun6_decrypt_node_name = "ah6-decrypt-ipsecmb"
-
- @classmethod
- def ipsec_select_backend(cls):
- cls.vapi.ipsec_select_backend(protocol=cls.vpp_ah_protocol, index=1)
-
-
-class TestIpsecMBAh2(TemplateIpsecAh, IpsecTcpTests):
- """ IpsecMB AH - TCP tests """
- extra_vpp_plugin_config = [
- "plugin", "ipsecmb_plugin.so", "{", "enable", "}"]
-
- @classmethod
- def ipsec_select_backend(cls):
- cls.vapi.ipsec_select_backend(protocol=cls.vpp_ah_protocol, index=1)
+++ /dev/null
-from test_ipsec_esp import TemplateIpsecEsp
-from template_ipsec import IpsecTraTests, IpsecTunTests, IpsecTcpTests
-
-
-class TestIpsecMBEsp1(TemplateIpsecEsp, IpsecTraTests, IpsecTunTests):
- """ IpsecMB ESP - TUN & TRA tests """
- extra_vpp_plugin_config = [
- "plugin", "ipsecmb_plugin.so", "{", "enable", "}"]
- tra4_encrypt_node_name = "esp4-encrypt-ipsecmb"
- tra4_decrypt_node_name = "esp4-decrypt-ipsecmb"
- tra6_encrypt_node_name = "esp6-encrypt-ipsecmb"
- tra6_decrypt_node_name = "esp6-decrypt-ipsecmb"
- tun4_encrypt_node_name = "esp4-encrypt-ipsecmb"
- tun4_decrypt_node_name = "esp4-decrypt-ipsecmb"
- tun6_encrypt_node_name = "esp6-encrypt-ipsecmb"
- tun6_decrypt_node_name = "esp6-decrypt-ipsecmb"
-
- @classmethod
- def ipsec_select_backend(cls):
- cls.vapi.ipsec_select_backend(protocol=cls.vpp_esp_protocol, index=1)
-
-
-class TestIpsecMBEsp2(TemplateIpsecEsp, IpsecTcpTests):
- """ IpsecMB ESP - TCP tests """
- extra_vpp_plugin_config = [
- "plugin", "ipsecmb_plugin.so", "{", "enable", "}"]
-
- @classmethod
- def ipsec_select_backend(cls):
- cls.vapi.ipsec_select_backend(protocol=cls.vpp_esp_protocol, index=1)
+++ /dev/null
-#!/usr/bin/env python
-
-from test_ipsec_nat import TemplateIPSecNAT
-
-
-class IPSecMBNATTestCase(TemplateIPSecNAT):
- """ IPSecMB/NAT """
- extra_vpp_plugin_config = [
- "plugin", "ipsecmb_plugin.so", "{", "enable", "}"]
-
- @classmethod
- def ipsec_select_backend(cls):
- cls.vapi.ipsec_select_backend(protocol=cls.vpp_ah_protocol, index=1)
Code Review / vpp.git / commitdiff