/*
* esp_encrypt.c : IPSec ESP encrypt node using DPDK Cryptodev
*
- * Copyright (c) 2016 Intel and/or its affiliates.
+ * Copyright (c) 2017 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:
#include <vnet/ip/ip.h>
#include <vnet/ipsec/ipsec.h>
+#include <vnet/ipsec/esp.h>
+#include <vnet/udp/udp.h>
+#include <dpdk/buffer.h>
#include <dpdk/ipsec/ipsec.h>
-#include <dpdk/ipsec/esp.h>
#include <dpdk/device/dpdk.h>
#include <dpdk/device/dpdk_priv.h>
#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")
+ _(SEQ_CYCLED, "Sequence number cycled") \
+ _(ENQ_FAIL, "Enqueue failed to crypto device") \
+ _(DISCARD, "Not enough crypto operations, discarding frame") \
+ _(SESSION, "Failed to get crypto session") \
+ _(NOSUP, "Cipher/Auth not supported")
typedef enum
#undef _
};
-vlib_node_registration_t dpdk_esp_encrypt_node;
+extern vlib_node_registration_t dpdk_esp4_encrypt_node;
+extern vlib_node_registration_t dpdk_esp6_encrypt_node;
typedef struct
{
- u32 spi;
- u32 seq;
ipsec_crypto_alg_t crypto_alg;
ipsec_integ_alg_t integ_alg;
+ u8 packet_data[64];
} esp_encrypt_trace_t;
/* packet trace format function */
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 *);
+ ip4_header_t *ih4 = (ip4_header_t *) t->packet_data;
+ u32 indent = format_get_indent (s), offset;
- s = format (s, "esp: spi %u seq %u crypto %U integrity %U",
- t->spi, t->seq,
+ s = format (s, "cipher %U auth %U\n",
format_ipsec_crypto_alg, t->crypto_alg,
format_ipsec_integ_alg, t->integ_alg);
+
+ if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
+ {
+ s = format (s, "%U%U", format_white_space, indent,
+ format_ip6_header, ih4);
+ offset = sizeof (ip6_header_t);
+ }
+ else
+ {
+ s = format (s, "%U%U", format_white_space, indent,
+ format_ip4_header, ih4);
+ offset = ip4_header_bytes (ih4);
+ }
+
+ s = format (s, "\n%U%U", format_white_space, indent,
+ format_esp_header, t->packet_data + offset);
+
return s;
}
-static uword
-dpdk_esp_encrypt_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+always_inline uword
+dpdk_esp_encrypt_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, next_index;
+ u32 n_left_from, *from, *to_next, next_index, thread_index;
ipsec_main_t *im = &ipsec_main;
- u32 thread_index = vlib_get_thread_index ();
+ u32 thread_idx = vlib_get_thread_index ();
dpdk_crypto_main_t *dcm = &dpdk_crypto_main;
- dpdk_esp_main_t *em = &dpdk_esp_main;
- u32 i;
+ crypto_resource_t *res = 0;
+ ipsec_sa_t *sa0 = 0;
+ crypto_alg_t *cipher_alg = 0, *auth_alg = 0;
+ struct rte_cryptodev_sym_session *session = 0;
+ u32 ret, last_sa_index = ~0;
+ u8 numa = rte_socket_id ();
+ u8 is_aead = 0;
+ crypto_worker_main_t *cwm =
+ vec_elt_at_index (dcm->workers_main, thread_idx);
+ struct rte_crypto_op **ops = cwm->ops;
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
+ thread_index = vm->thread_index;
- if (PREDICT_FALSE (!dcm->workers_main))
+ ret = crypto_alloc_ops (numa, ops, n_left_from);
+ if (ret)
{
- /* 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);
+ if (is_ip6)
+ vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_DISCARD, 1);
+ else
+ vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_DISCARD, 1);
+ /* Discard whole frame */
return n_left_from;
}
- crypto_worker_main_t *cwm =
- vec_elt_at_index (dcm->workers_main, thread_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)
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0, next0;
+ clib_error_t *error;
+ u32 bi0;
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;
+ ip4_and_udp_and_esp_header_t *ouh0 = 0;
+ esp_header_t *esp0;
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;
+ u8 trunc_size;
+ u16 rewrite_len;
+ u16 udp_encap_adv = 0;
+ struct rte_mbuf *mb0 = 0;
+ struct rte_crypto_op *op;
+ u16 res_idx;
bi0 = from[0];
from += 1;
n_left_from -= 1;
b0 = vlib_get_buffer (vm, bi0);
+ ih0 = vlib_buffer_get_current (b0);
+ mb0 = rte_mbuf_from_vlib_buffer (b0);
+
+ /* ih0/ih6_0 */
+ CLIB_PREFETCH (ih0, sizeof (ih6_0[0]), LOAD);
+ /* f0 */
+ CLIB_PREFETCH (vlib_buffer_get_tail (b0), 20, STORE);
+ /* mb0 */
+ CLIB_PREFETCH (mb0, CLIB_CACHE_LINE_BYTES, STORE);
+
+ op = ops[0];
+ ops += 1;
+ ASSERT (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED);
+
+ dpdk_op_priv_t *priv = crypto_op_get_priv (op);
+ /* store bi in op private */
+ priv->bi = bi0;
+
+ u16 op_len =
+ sizeof (op[0]) + sizeof (op[0].sym[0]) + sizeof (priv[0]);
+ CLIB_PREFETCH (op, op_len, STORE);
+
sa_index0 = vnet_buffer (b0)->ipsec.sad_index;
- sa0 = pool_elt_at_index (im->sad, sa_index0);
- if (PREDICT_FALSE (esp_seq_advance (sa0)))
+ if (sa_index0 != last_sa_index)
{
- 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 = pool_elt_at_index (im->sad, sa_index0);
- sa0->total_data_size += b0->current_length;
+ cipher_alg =
+ vec_elt_at_index (dcm->cipher_algs, sa0->crypto_alg);
+ auth_alg = vec_elt_at_index (dcm->auth_algs, sa0->integ_alg);
- 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);
+ is_aead = (cipher_alg->type == RTE_CRYPTO_SYM_XFORM_AEAD);
+
+ if (is_aead)
+ auth_alg = cipher_alg;
- if (PREDICT_FALSE (ret))
+ res_idx = get_resource (cwm, sa0);
+
+ if (PREDICT_FALSE (res_idx == (u16) ~ 0))
{
+ clib_warning ("unsupported SA by thread index %u",
+ thread_idx);
+ if (is_ip6)
+ vlib_node_increment_counter (vm,
+ dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_NOSUP, 1);
+ else
+ vlib_node_increment_counter (vm,
+ dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_NOSUP, 1);
to_next[0] = bi0;
to_next += 1;
n_left_to_next -= 1;
goto trace;
}
- }
-
- qp_index = sa_sess->qp_index;
- sess = sa_sess->sess;
+ res = vec_elt_at_index (dcm->resource, res_idx);
- 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;
+ error = crypto_get_session (&session, sa_index0, res, cwm, 1);
+ if (PREDICT_FALSE (error || !session))
+ {
+ clib_warning ("failed to get crypto session");
+ if (is_ip6)
+ vlib_node_increment_counter (vm,
+ dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_SESSION,
+ 1);
+ else
+ vlib_node_increment_counter (vm,
+ dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_SESSION,
+ 1);
+ to_next[0] = bi0;
+ to_next += 1;
+ n_left_to_next -= 1;
+ goto trace;
+ }
- 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);
+ last_sa_index = sa_index0;
}
- else
+
+ if (PREDICT_FALSE (esp_seq_advance (sa0)))
{
- adv = -sizeof (esp_header_t);
- if (PREDICT_TRUE (!is_ipv6))
- orig_sz -= sizeof (ip4_header_t);
+ clib_warning ("sequence number counter has cycled SPI %u",
+ sa0->spi);
+ if (is_ip6)
+ vlib_node_increment_counter (vm,
+ dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_SEQ_CYCLED, 1);
else
- orig_sz -= sizeof (ip6_header_t);
+ vlib_node_increment_counter (vm,
+ dpdk_esp4_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;
}
- /*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));
- }
+ orig_sz = b0->current_length;
- vlib_buffer_advance (b0, adv - iv_size);
+ /* TODO multi-seg support - total_length_not_including_first_buffer */
+ vlib_increment_combined_counter
+ (&ipsec_sa_counters, thread_index, sa_index0,
+ 1, b0->current_length);
- /* XXX IP6/ip4 and IP4/IP6 not supported, only IP4/IP4 and IP6/IP6 */
+ res->ops[res->n_ops] = op;
+ res->bi[res->n_ops] = bi0;
+ res->n_ops += 1;
- /* 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);
+ dpdk_gcm_cnt_blk *icb = &priv->cb;
- if (PREDICT_TRUE (sa0->is_tunnel))
+ crypto_set_icb (icb, sa0->salt, sa0->seq, sa0->seq_hi);
+
+ iv_size = cipher_alg->iv_len;
+ trunc_size = auth_alg->trunc_size;
+
+ /* if UDP encapsulation is used adjust the address of the IP header */
+ if (ipsec_sa_is_set_UDP_ENCAP (sa0) && !is_ip6)
+ udp_encap_adv = sizeof (udp_header_t);
+
+ if (ipsec_sa_is_set_IS_TUNNEL (sa0))
+ {
+ rewrite_len = 0;
+ if (!is_ip6 && !ipsec_sa_is_set_IS_TUNNEL_V6 (sa0)) /* ip4inip4 */
+ {
+ /* in tunnel mode send it back to FIB */
+ priv->next = DPDK_CRYPTO_INPUT_NEXT_IP4_LOOKUP;
+ u8 adv = sizeof (ip4_header_t) + udp_encap_adv +
+ sizeof (esp_header_t) + iv_size;
+ vlib_buffer_advance (b0, -adv);
+ oh0 = vlib_buffer_get_current (b0);
+ ouh0 = vlib_buffer_get_current (b0);
+ next_hdr_type = IP_PROTOCOL_IP_IN_IP;
+ /*
+ * oh0->ip4.ip_version_and_header_length = 0x45;
+ * oh0->ip4.tos = ih0->ip4.tos;
+ * oh0->ip4.fragment_id = 0;
+ * oh0->ip4.flags_and_fragment_offset = 0;
+ */
+ oh0->ip4.checksum_data_64[0] =
+ clib_host_to_net_u64 (0x45ULL << 56);
+ /*
+ * oh0->ip4.ttl = 254;
+ * oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
+ */
+ oh0->ip4.checksum_data_32[2] =
+ clib_host_to_net_u32 (0xfe320000);
+
+ 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;
+
+ if (ipsec_sa_is_set_UDP_ENCAP (sa0))
+ {
+ oh0->ip4.protocol = IP_PROTOCOL_UDP;
+ esp0 = &ouh0->esp;
+ }
+ else
+ esp0 = &oh0->esp;
+ esp0->spi = clib_host_to_net_u32 (sa0->spi);
+ esp0->seq = clib_host_to_net_u32 (sa0->seq);
+ }
+ else if (is_ip6 && ipsec_sa_is_set_IS_TUNNEL_V6 (sa0))
{
+ /* ip6inip6 */
+ /* in tunnel mode send it back to FIB */
+ priv->next = DPDK_CRYPTO_INPUT_NEXT_IP6_LOOKUP;
+
+ u8 adv =
+ sizeof (ip6_header_t) + sizeof (esp_header_t) + iv_size;
+ vlib_buffer_advance (b0, -adv);
+ ih6_0 = (ip6_and_esp_header_t *) ih0;
+ oh6_0 = vlib_buffer_get_current (b0);
+
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;
+
+ oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
+ oh6_0->ip6.hop_limit = 254;
+ 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];
+ esp0 = &oh6_0->esp;
+ oh6_0->esp.spi = clib_host_to_net_u32 (sa0->spi);
+ oh6_0->esp.seq = clib_host_to_net_u32 (sa0->seq);
}
- else
+ else /* unsupported ip4inip6, ip6inip4 */
{
- next_hdr_type = ih6_0->ip6.protocol;
- memmove (oh6_0, ih6_0, sizeof (ip6_header_t));
+ if (is_ip6)
+ vlib_node_increment_counter (vm,
+ dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_NOSUP, 1);
+ else
+ vlib_node_increment_counter (vm,
+ dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_NOSUP, 1);
+ to_next[0] = bi0;
+ to_next += 1;
+ n_left_to_next -= 1;
+ goto trace;
}
-
- 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);
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
}
- else
+ else /* transport mode */
{
- ip_hdr_size = sizeof (ip4_header_t);
- oh0 = vlib_buffer_get_current (b0);
-
- if (PREDICT_TRUE (sa0->is_tunnel))
+ priv->next = DPDK_CRYPTO_INPUT_NEXT_INTERFACE_OUTPUT;
+ rewrite_len = vnet_buffer (b0)->ip.save_rewrite_length;
+ u16 adv = sizeof (esp_header_t) + iv_size + udp_encap_adv;
+ vlib_buffer_advance (b0, -adv - rewrite_len);
+ u8 *src = ((u8 *) ih0) - rewrite_len;
+ u8 *dst = vlib_buffer_get_current (b0);
+ oh0 = vlib_buffer_get_current (b0) + rewrite_len;
+
+ if (is_ip6)
{
- next_hdr_type = IP_PROTOCOL_IP_IN_IP;
- oh0->ip4.tos = ih0->ip4.tos;
+ orig_sz -= sizeof (ip6_header_t);
+ ih6_0 = (ip6_and_esp_header_t *) ih0;
+ next_hdr_type = ih6_0->ip6.protocol;
+ memmove (dst, src, rewrite_len + sizeof (ip6_header_t));
+ oh6_0 = (ip6_and_esp_header_t *) oh0;
+ oh6_0->ip6.protocol = IP_PROTOCOL_IPSEC_ESP;
+ esp0 = &oh6_0->esp;
}
- else
+ else /* ipv4 */
{
+ u16 ip_size = ip4_header_bytes (&ih0->ip4);
+ orig_sz -= ip_size;
next_hdr_type = ih0->ip4.protocol;
- memmove (oh0, ih0, sizeof (ip4_header_t));
+ memmove (dst, src, rewrite_len + ip_size);
+ oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
+ esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
+ if (ipsec_sa_is_set_UDP_ENCAP (sa0))
+ {
+ oh0->ip4.protocol = IP_PROTOCOL_UDP;
+ esp0 = (esp_header_t *)
+ (((u8 *) oh0) + ip_size + udp_encap_adv);
+ }
+ else
+ {
+ oh0->ip4.protocol = IP_PROTOCOL_IPSEC_ESP;
+ esp0 = (esp_header_t *) (((u8 *) oh0) + ip_size);
+ }
}
-
- 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);
+ esp0->spi = clib_host_to_net_u32 (sa0->spi);
+ esp0->seq = clib_host_to_net_u32 (sa0->seq);
}
- if (PREDICT_TRUE
- (!is_ipv6 && 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 (is_ipv6 && 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
+ if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
{
- next0 = ESP_ENCRYPT_NEXT_INTERFACE_OUTPUT;
- transport_mode = 1;
+ ouh0->udp.src_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
+ ouh0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_ipsec);
+ ouh0->udp.checksum = 0;
}
+ ASSERT (is_pow2 (cipher_alg->boundary));
+ u16 mask = cipher_alg->boundary - 1;
+ u16 pad_payload_len = ((orig_sz + 2) + mask) & ~mask;
+ u8 pad_bytes = pad_payload_len - 2 - orig_sz;
- ASSERT (sa0->crypto_alg < IPSEC_CRYPTO_N_ALG);
- ASSERT (sa0->crypto_alg != IPSEC_CRYPTO_ALG_NONE);
-
- int blocks = 1 + (orig_sz + 1) / BLOCK_SIZE;
+ u8 *padding =
+ vlib_buffer_put_uninit (b0, pad_bytes + 2 + trunc_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;
+ /* The extra pad bytes would be overwritten by the digest */
+ if (pad_bytes)
+ clib_memcpy_fast (padding, pad_data, 16);
- for (i = 0; i < pad_bytes; ++i)
- padding[i] = i + 1;
-
- f0 = vlib_buffer_get_current (b0) + b0->current_length + pad_bytes;
+ f0 = (esp_footer_t *) (padding + 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)
+ if (is_ip6)
{
- 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;
+ u16 len = b0->current_length - sizeof (ip6_header_t);
+ oh6_0->ip6.payload_length =
+ clib_host_to_net_u16 (len - rewrite_len);
}
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;
+ oh0->ip4.length =
+ clib_host_to_net_u16 (b0->current_length - rewrite_len);
+ oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
+ if (ipsec_sa_is_set_UDP_ENCAP (sa0) && ouh0)
+ {
+ ouh0->udp.length =
+ clib_host_to_net_u16 (clib_net_to_host_u16
+ (ouh0->ip4.length) -
+ ip4_header_bytes (&ouh0->ip4));
+ }
}
- sym_cop->cipher.iv.data = (u8 *) icb;
- sym_cop->cipher.iv.phys_addr = cop->phys_addr + (uintptr_t) icb
- - (uintptr_t) cop;
+ b0->flags |= VLIB_BUFFER_TOTAL_LENGTH_VALID;
+
+ /* mbuf packet starts at ESP header */
+ mb0->data_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
+ mb0->pkt_len = vlib_buffer_get_tail (b0) - ((u8 *) esp0);
+ mb0->data_off = ((void *) esp0) - mb0->buf_addr;
+ u32 cipher_off, cipher_len, auth_len = 0;
+ u32 *aad = NULL;
- ASSERT (sa0->integ_alg < IPSEC_INTEG_N_ALG);
- ASSERT (sa0->integ_alg != IPSEC_INTEG_ALG_NONE);
+ u8 *digest = vlib_buffer_get_tail (b0) - trunc_size;
+ u64 digest_paddr =
+ mb0->buf_physaddr + digest - ((u8 *) mb0->buf_addr);
- if (PREDICT_FALSE (sa0->integ_alg == IPSEC_INTEG_ALG_AES_GCM_128))
+ if (!is_aead && cipher_alg->alg == RTE_CRYPTO_CIPHER_AES_CBC)
{
- 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;
- }
+ cipher_off = sizeof (esp_header_t);
+ cipher_len = iv_size + pad_payload_len;
}
- else
+ else /* CTR/GCM */
{
- 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;
+ u32 *esp_iv = (u32 *) (esp0 + 1);
+ esp_iv[0] = sa0->seq;
+ esp_iv[1] = sa0->seq_hi;
- 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);
- }
+ cipher_off = sizeof (esp_header_t) + iv_size;
+ cipher_len = pad_payload_len;
}
- 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))
+
+ if (is_aead)
{
- oh6_0->ip6.payload_length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
- sizeof (ip6_header_t));
+ aad = (u32 *) priv->aad;
+ aad[0] = clib_host_to_net_u32 (sa0->spi);
+ aad[1] = clib_host_to_net_u32 (sa0->seq);
+
+ /* aad[3] should always be 0 */
+ if (PREDICT_FALSE (ipsec_sa_is_set_USE_EXTENDED_SEQ_NUM (sa0)))
+ aad[2] = clib_host_to_net_u32 (sa0->seq_hi);
+ else
+ aad[2] = 0;
}
else
{
- oh0->ip4.length =
- clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
- oh0->ip4.checksum = ip4_header_checksum (&oh0->ip4);
+ auth_len =
+ vlib_buffer_get_tail (b0) - ((u8 *) esp0) - trunc_size;
+ if (ipsec_sa_is_set_USE_EXTENDED_SEQ_NUM (sa0))
+ {
+ u32 *_digest = (u32 *) digest;
+ _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
+ auth_len += 4;
+ }
}
- if (transport_mode)
- vlib_buffer_advance (b0, -sizeof (ethernet_header_t));
+ crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
+ 0, auth_len, (u8 *) aad, digest, digest_paddr);
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;
+ u8 *p = vlib_buffer_get_current (b0);
+ if (!ipsec_sa_is_set_IS_TUNNEL (sa0))
+ p += vnet_buffer (b0)->ip.save_rewrite_length;
+ clib_memcpy_fast (tr->packet_data, p, sizeof (tr->packet_data));
}
}
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)
+ if (is_ip6)
{
- u32 enq;
+ vlib_node_increment_counter (vm, dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_RX_PKTS,
+ from_frame->n_vectors);
- 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);
+ crypto_enqueue_ops (vm, cwm, dpdk_esp6_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_ENQ_FAIL, numa);
+ }
+ else
+ {
+ vlib_node_increment_counter (vm, dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_RX_PKTS,
+ from_frame->n_vectors);
- vlib_node_increment_counter (vm, dpdk_esp_encrypt_node.index,
- ESP_ENCRYPT_ERROR_ENQ_FAIL,
- n_cop_qp[i] - enq);
- }
+ crypto_enqueue_ops (vm, cwm, dpdk_esp4_encrypt_node.index,
+ ESP_ENCRYPT_ERROR_ENQ_FAIL, numa);
}
- /* *INDENT-ON* */
+
+ crypto_free_ops (numa, ops, cwm->ops + from_frame->n_vectors - ops);
return from_frame->n_vectors;
}
-VLIB_REGISTER_NODE (dpdk_esp_encrypt_node) =
+VLIB_NODE_FN (dpdk_esp4_encrypt_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
{
- .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;
+ return dpdk_esp_encrypt_inline (vm, node, from_frame, 0 /*is_ip6 */ );
}
-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)
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (dpdk_esp4_encrypt_node) = {
+ .name = "dpdk-esp4-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 =
{
- 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);
+ [ESP_ENCRYPT_NEXT_DROP] = "error-drop",
}
+};
+/* *INDENT-ON* */
- 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_NODE_FN (dpdk_esp6_encrypt_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ return dpdk_esp_encrypt_inline (vm, node, from_frame, 1 /*is_ip6 */ );
}
-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 _
- }
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (dpdk_esp6_encrypt_node) = {
+ .name = "dpdk-esp6-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",
+ }
};
+/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (dpdk_esp_encrypt_post_node,
- dpdk_esp_encrypt_post_node_fn)
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff