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Diffstat (limited to 'src/vnet/devices/dpdk/ipsec/esp_encrypt.c')
-rw-r--r--src/vnet/devices/dpdk/ipsec/esp_encrypt.c609
1 files changed, 0 insertions, 609 deletions
diff --git a/src/vnet/devices/dpdk/ipsec/esp_encrypt.c b/src/vnet/devices/dpdk/ipsec/esp_encrypt.c
deleted file mode 100644
index 6eb1afc9501..00000000000
--- a/src/vnet/devices/dpdk/ipsec/esp_encrypt.c
+++ /dev/null
@@ -1,609 +0,0 @@
-/*
- * esp_encrypt.c : IPSec ESP encrypt node using DPDK Cryptodev
- *
- * Copyright (c) 2016 Intel 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/devices/dpdk/ipsec/ipsec.h>
-#include <vnet/devices/dpdk/ipsec/esp.h>
-#include <vnet/devices/dpdk/dpdk.h>
-#include <vnet/devices/dpdk/dpdk_priv.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") \
- _(SEQ_CYCLED, "sequence number cycled") \
- _(ENQ_FAIL, "Enqueue failed (buffer full)") \
- _(NO_CRYPTODEV, "Cryptodev not configured") \
- _(UNSUPPORTED, "Cipher/Auth not supported")
-
-
-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 _
-};
-
-vlib_node_registration_t dpdk_esp_encrypt_node;
-
-typedef struct
-{
- u32 spi;
- u32 seq;
- 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: spi %u seq %u crypto %U integrity %U",
- t->spi, t->seq,
- format_ipsec_crypto_alg, t->crypto_alg,
- format_ipsec_integ_alg, t->integ_alg);
- return s;
-}
-
-static uword
-dpdk_esp_encrypt_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, *from, *to_next, next_index;
- ipsec_main_t *im = &ipsec_main;
- u32 cpu_index = os_get_cpu_number ();
- dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
- dpdk_esp_main_t *em = &dpdk_esp_main;
- u32 i;
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- if (PREDICT_FALSE (!dcm->workers_main))
- {
- /* Likely there are not enough cryptodevs, so drop frame */
- vlib_node_increment_counter (vm, dpdk_esp_encrypt_node.index,
- ESP_ENCRYPT_ERROR_NO_CRYPTODEV,
- n_left_from);
- vlib_buffer_free (vm, from, n_left_from);
- return n_left_from;
- }
-
- crypto_worker_main_t *cwm = vec_elt_at_index (dcm->workers_main, cpu_index);
- u32 n_qps = vec_len (cwm->qp_data);
- struct rte_crypto_op **cops_to_enq[n_qps];
- u32 n_cop_qp[n_qps], *bi_to_enq[n_qps];
-
- for (i = 0; i < n_qps; i++)
- {
- bi_to_enq[i] = cwm->qp_data[i].bi;
- cops_to_enq[i] = cwm->qp_data[i].cops;
- }
-
- memset (n_cop_qp, 0, n_qps * sizeof (u32));
-
- crypto_alloc_cops ();
-
- next_index = ESP_ENCRYPT_NEXT_DROP;
-
- while (n_left_from > 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;
- ip4_and_esp_header_t *ih0, *oh0 = 0;
- ip6_and_esp_header_t *ih6_0, *oh6_0 = 0;
- struct rte_mbuf *mb0 = 0;
- esp_footer_t *f0;
- u8 is_ipv6;
- u8 ip_hdr_size;
- u8 next_hdr_type;
- u8 transport_mode = 0;
- const int BLOCK_SIZE = 16;
- u32 iv_size;
- u16 orig_sz;
- crypto_sa_session_t *sa_sess;
- void *sess;
- struct rte_crypto_op *cop = 0;
- u16 qp_index;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
- sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
- sa0 = pool_elt_at_index (im->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, dpdk_esp_encrypt_node.index,
- ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
- //TODO: rekey SA
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
- goto trace;
- }
-
- sa0->total_data_size += b0->current_length;
-
- sa_sess = pool_elt_at_index (cwm->sa_sess_d[1], sa_index0);
- if (PREDICT_FALSE (!sa_sess->sess))
- {
- int ret = create_sym_sess (sa0, sa_sess, 1);
-
- if (PREDICT_FALSE (ret))
- {
- to_next[0] = bi0;
- to_next += 1;
- n_left_to_next -= 1;
- goto trace;
- }
- }
-
- qp_index = sa_sess->qp_index;
- sess = sa_sess->sess;
-
- ASSERT (vec_len (vec_elt (cwm->qp_data, qp_index).free_cops) > 0);
- cop = vec_pop (vec_elt (cwm->qp_data, qp_index).free_cops);
- ASSERT (cop->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
-
- cops_to_enq[qp_index][0] = cop;
- cops_to_enq[qp_index] += 1;
- n_cop_qp[qp_index] += 1;
- bi_to_enq[qp_index][0] = bi0;
- bi_to_enq[qp_index] += 1;
-
- ssize_t adv;
- iv_size = em->esp_crypto_algs[sa0->crypto_alg].iv_len;
- ih0 = vlib_buffer_get_current (b0);
- orig_sz = b0->current_length;
- is_ipv6 = (ih0->ip4.ip_version_and_header_length & 0xF0) == 0x60;
- /* is ipv6 */
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- if (PREDICT_TRUE (!is_ipv6))
- adv = -sizeof (ip4_and_esp_header_t);
- else
- adv = -sizeof (ip6_and_esp_header_t);
- }
- else
- {
- adv = -sizeof (esp_header_t);
- if (PREDICT_TRUE (!is_ipv6))
- orig_sz -= sizeof (ip4_header_t);
- else
- orig_sz -= sizeof (ip6_header_t);
- }
-
- /*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 - iv_size));
- clib_memcpy (oeh0, ieh0, sizeof (ethernet_header_t));
- }
-
- vlib_buffer_advance (b0, adv - iv_size);
-
- /* XXX IP6/ip4 and IP4/IP6 not supported, only IP4/IP4 and IP6/IP6 */
-
- /* is ipv6 */
- if (PREDICT_FALSE (is_ipv6))
- {
- ih6_0 = (ip6_and_esp_header_t *) ih0;
- ip_hdr_size = sizeof (ip6_header_t);
- oh6_0 = vlib_buffer_get_current (b0);
-
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- next_hdr_type = IP_PROTOCOL_IPV6;
- oh6_0->ip6.ip_version_traffic_class_and_flow_label =
- ih6_0->ip6.ip_version_traffic_class_and_flow_label;
- }
- else
- {
- next_hdr_type = ih6_0->ip6.protocol;
- memmove (oh6_0, ih6_0, sizeof (ip6_header_t));
- }
-
- oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
- oh6_0->ip6.hop_limit = 254;
- oh6_0->esp.spi = clib_net_to_host_u32 (sa0->spi);
- oh6_0->esp.seq = clib_net_to_host_u32 (sa0->seq);
- }
- else
- {
- ip_hdr_size = sizeof (ip4_header_t);
- oh0 = vlib_buffer_get_current (b0);
-
- if (PREDICT_TRUE (sa0->is_tunnel))
- {
- next_hdr_type = IP_PROTOCOL_IP_IN_IP;
- oh0->ip4.tos = ih0->ip4.tos;
- }
- else
- {
- next_hdr_type = ih0->ip4.protocol;
- memmove (oh0, ih0, sizeof (ip4_header_t));
- }
-
- oh0->ip4.ip_version_and_header_length = 0x45;
- oh0->ip4.fragment_id = 0;
- oh0->ip4.flags_and_fragment_offset = 0;
- oh0->ip4.ttl = 254;
- oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
- oh0->esp.spi = clib_net_to_host_u32 (sa0->spi);
- oh0->esp.seq = clib_net_to_host_u32 (sa0->seq);
- }
-
- if (PREDICT_TRUE (sa0->is_tunnel && !sa0->is_tunnel_ip6))
- {
- oh0->ip4.src_address.as_u32 = sa0->tunnel_src_addr.ip4.as_u32;
- oh0->ip4.dst_address.as_u32 = sa0->tunnel_dst_addr.ip4.as_u32;
-
- /* in tunnel mode send it back to FIB */
- next0 = ESP_ENCRYPT_NEXT_IP4_LOOKUP;
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- }
- else if (sa0->is_tunnel && sa0->is_tunnel_ip6)
- {
- oh6_0->ip6.src_address.as_u64[0] =
- sa0->tunnel_src_addr.ip6.as_u64[0];
- oh6_0->ip6.src_address.as_u64[1] =
- sa0->tunnel_src_addr.ip6.as_u64[1];
- oh6_0->ip6.dst_address.as_u64[0] =
- sa0->tunnel_dst_addr.ip6.as_u64[0];
- oh6_0->ip6.dst_address.as_u64[1] =
- sa0->tunnel_dst_addr.ip6.as_u64[1];
-
- /* in tunnel mode send it back to FIB */
- next0 = ESP_ENCRYPT_NEXT_IP6_LOOKUP;
- vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
- }
- else
- {
- next0 = ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT;
- transport_mode = 1;
- }
-
- ASSERT (sa0->crypto_alg < IPSEC_CRYPTO_N_ALG);
- ASSERT (sa0->crypto_alg != IPSEC_CRYPTO_ALG_NONE);
-
- int blocks = 1 + (orig_sz + 1) / BLOCK_SIZE;
-
- /* pad packet in input buffer */
- u8 pad_bytes = BLOCK_SIZE * blocks - 2 - orig_sz;
- u8 i;
- u8 *padding = vlib_buffer_get_current (b0) + b0->current_length;
-
- for (i = 0; i < pad_bytes; ++i)
- padding[i] = i + 1;
-
- f0 = vlib_buffer_get_current (b0) + b0->current_length + pad_bytes;
- f0->pad_length = pad_bytes;
- f0->next_header = next_hdr_type;
- b0->current_length += pad_bytes + 2 +
- em->esp_integ_algs[sa0->integ_alg].trunc_size;
-
- vnet_buffer (b0)->sw_if_index[VLIB_RX] =
- vnet_buffer (b0)->sw_if_index[VLIB_RX];
- b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
-
- struct rte_crypto_sym_op *sym_cop;
- sym_cop = (struct rte_crypto_sym_op *) (cop + 1);
-
- dpdk_cop_priv_t *priv = (dpdk_cop_priv_t *) (sym_cop + 1);
-
- vnet_buffer (b0)->unused[0] = next0;
-
- mb0 = rte_mbuf_from_vlib_buffer (b0);
- mb0->data_len = b0->current_length;
- mb0->pkt_len = b0->current_length;
- mb0->data_off = RTE_PKTMBUF_HEADROOM + b0->current_data;
-
- rte_crypto_op_attach_sym_session (cop, sess);
-
- sym_cop->m_src = mb0;
-
- dpdk_gcm_cnt_blk *icb = &priv->cb;
- icb->salt = sa0->salt;
- icb->iv[0] = sa0->seq;
- icb->iv[1] = sa0->seq_hi;
-
- if (sa0->crypto_alg == IPSEC_CRYPTO_ALG_AES_GCM_128)
- {
- icb->cnt = clib_host_to_net_u32 (1);
- clib_memcpy (vlib_buffer_get_current (b0) + ip_hdr_size +
- sizeof (esp_header_t), icb->iv, 8);
- sym_cop->cipher.data.offset =
- ip_hdr_size + sizeof (esp_header_t) + iv_size;
- sym_cop->cipher.data.length = BLOCK_SIZE * blocks;
- sym_cop->cipher.iv.length = 16;
- }
- else
- {
- sym_cop->cipher.data.offset =
- ip_hdr_size + sizeof (esp_header_t);
- sym_cop->cipher.data.length = BLOCK_SIZE * blocks + iv_size;
- sym_cop->cipher.iv.length = iv_size;
- }
-
- sym_cop->cipher.iv.data = (u8 *) icb;
- sym_cop->cipher.iv.phys_addr = cop->phys_addr + (uintptr_t) icb
- - (uintptr_t) cop;
-
-
- ASSERT (sa0->integ_alg < IPSEC_INTEG_N_ALG);
- ASSERT (sa0->integ_alg != IPSEC_INTEG_ALG_NONE);
-
- if (PREDICT_FALSE (sa0->integ_alg == IPSEC_INTEG_ALG_AES_GCM_128))
- {
- u8 *aad = priv->aad;
- clib_memcpy (aad, vlib_buffer_get_current (b0) + ip_hdr_size,
- 8);
- sym_cop->auth.aad.data = aad;
- sym_cop->auth.aad.phys_addr = cop->phys_addr +
- (uintptr_t) aad - (uintptr_t) cop;
-
- if (PREDICT_FALSE (sa0->use_esn))
- {
- *((u32 *) & aad[8]) = sa0->seq_hi;
- sym_cop->auth.aad.length = 12;
- }
- else
- {
- sym_cop->auth.aad.length = 8;
- }
- }
- else
- {
- sym_cop->auth.data.offset = ip_hdr_size;
- sym_cop->auth.data.length = b0->current_length - ip_hdr_size
- - em->esp_integ_algs[sa0->integ_alg].trunc_size;
-
- if (PREDICT_FALSE (sa0->use_esn))
- {
- u8 *payload_end =
- vlib_buffer_get_current (b0) + b0->current_length;
- *((u32 *) payload_end) = sa0->seq_hi;
- sym_cop->auth.data.length += sizeof (sa0->seq_hi);
- }
- }
- sym_cop->auth.digest.data = vlib_buffer_get_current (b0) +
- b0->current_length -
- em->esp_integ_algs[sa0->integ_alg].trunc_size;
- sym_cop->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset (mb0,
- b0->current_length
- -
- em->esp_integ_algs
- [sa0->integ_alg].trunc_size);
- sym_cop->auth.digest.length =
- em->esp_integ_algs[sa0->integ_alg].trunc_size;
-
-
- if (PREDICT_FALSE (is_ipv6))
- {
- oh6_0->ip6.payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
- }
- else
- {
- oh0->ip4.length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
- }
-
- if (transport_mode)
- vlib_buffer_advance (b0, -sizeof (ethernet_header_t));
-
- 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->crypto_alg = sa0->crypto_alg;
- tr->integ_alg = sa0->integ_alg;
- }
- }
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
- }
- vlib_node_increment_counter (vm, dpdk_esp_encrypt_node.index,
- ESP_ENCRYPT_ERROR_RX_PKTS,
- from_frame->n_vectors);
- crypto_qp_data_t *qpd;
- /* *INDENT-OFF* */
- vec_foreach_index (i, cwm->qp_data)
- {
- u32 enq;
-
- qpd = vec_elt_at_index(cwm->qp_data, i);
- enq = rte_cryptodev_enqueue_burst(qpd->dev_id, qpd->qp_id,
- qpd->cops, n_cop_qp[i]);
- qpd->inflights += enq;
-
- if (PREDICT_FALSE(enq < n_cop_qp[i]))
- {
- crypto_free_cop (qpd, &qpd->cops[enq], n_cop_qp[i] - enq);
- vlib_buffer_free (vm, &qpd->bi[enq], n_cop_qp[i] - enq);
-
- vlib_node_increment_counter (vm, dpdk_esp_encrypt_node.index,
- ESP_ENCRYPT_ERROR_ENQ_FAIL,
- n_cop_qp[i] - enq);
- }
- }
- /* *INDENT-ON* */
-
- return from_frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (dpdk_esp_encrypt_node) =
-{
- .function = dpdk_esp_encrypt_node_fn,.name = "dpdk-esp-encrypt",.flags =
- VLIB_NODE_FLAG_IS_OUTPUT,.vector_size = sizeof (u32),.format_trace =
- format_esp_encrypt_trace,.n_errors =
- ARRAY_LEN (esp_encrypt_error_strings),.error_strings =
- esp_encrypt_error_strings,.n_next_nodes = 1,.next_nodes =
- {
- [ESP_ENCRYPT_NEXT_DROP] = "error-drop",}
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp_encrypt_node, dpdk_esp_encrypt_node_fn)
-/*
- * ESP Encrypt Post Node
- */
-#define foreach_esp_encrypt_post_error \
- _(PKTS, "ESP post pkts")
- typedef enum
- {
-#define _(sym,str) ESP_ENCRYPT_POST_ERROR_##sym,
- foreach_esp_encrypt_post_error
-#undef _
- ESP_ENCRYPT_POST_N_ERROR,
- } esp_encrypt_post_error_t;
-
- static char *esp_encrypt_post_error_strings[] = {
-#define _(sym,string) string,
- foreach_esp_encrypt_post_error
-#undef _
- };
-
-vlib_node_registration_t dpdk_esp_encrypt_post_node;
-
-static u8 *
-format_esp_encrypt_post_trace (u8 * s, va_list * args)
-{
- return s;
-}
-
-static uword
-dpdk_esp_encrypt_post_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
-{
- u32 n_left_from, *from, *to_next = 0, next_index;
-
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
-
- next_index = node->cached_next_index;
-
- while (n_left_from > 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;
-
- bi0 = from[0];
- from += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- to_next[0] = bi0;
- to_next += 1;
-
- next0 = vnet_buffer (b0)->unused[0];
-
- 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, dpdk_esp_encrypt_post_node.index,
- ESP_ENCRYPT_POST_ERROR_PKTS,
- from_frame->n_vectors);
-
- return from_frame->n_vectors;
-}
-
-VLIB_REGISTER_NODE (dpdk_esp_encrypt_post_node) =
-{
- .function = dpdk_esp_encrypt_post_node_fn,.name =
- "dpdk-esp-encrypt-post",.vector_size = sizeof (u32),.format_trace =
- format_esp_encrypt_post_trace,.type = VLIB_NODE_TYPE_INTERNAL,.n_errors =
- ARRAY_LEN (esp_encrypt_post_error_strings),.error_strings =
- esp_encrypt_post_error_strings,.n_next_nodes =
- ESP_ENCRYPT_N_NEXT,.next_nodes =
- {
-#define _(s,n) [ESP_ENCRYPT_NEXT_##s] = n,
- foreach_esp_encrypt_next
-#undef _
- }
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp_encrypt_post_node,
- dpdk_esp_encrypt_post_node_fn)
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */