VNFs/DPPD-PROX/handle_esp.c

   1 /*
   2 // Copyright (c) 2010-2017 Intel Corporation
   3 //
   4 // Licensed under the Apache License, Version 2.0 (the "License");
   5 // you may not use this file except in compliance with the License.
   6 // You may obtain a copy of the License at
   7 //
   8 //     http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15 */
  16
  17 /*
  18  * Non compatible implementation of RFC3686(CTR-AES 128 bit key), RFC4303 (tunnel ipv4 ESP)
  19  * Limitations:
  20  * 1. Crypto not safe!!!!! (underlying AES-CTR implementation is OK, but ESP implementation is lousy)
  21  * 2. Only ESP/tunnel/ipv4/AES-CTR
  22  * 3. Not fully implemented
  23  * 4. No proper key / SADB
  24  * So performance demonstrator only
  25  */
  26
  27 #include "task_init.h"
  28 #include "task_base.h"
  29 #include "etypes.h"
  30 #include "stats.h"
  31 #include "cfgfile.h"
  32 #include "log.h"
  33 #include "prox_cksum.h"
  34 #include "defines.h"
  35 #include <rte_ip.h>
  36 #include <rte_cryptodev.h>
  37 #include <rte_bus_vdev.h>
  38 #include "prox_port_cfg.h"
  39 #include "prox_compat.h"
  40
  41 typedef unsigned int u32;
  42 typedef unsigned char u8;
  43
  44 #define BYTE_LENGTH(x) (x/8)
  45 #define DIGEST_BYTE_LENGTH_SHA1 (BYTE_LENGTH(160))
  46
  47 //#define CIPHER_KEY_LENGTH_AES_CBC (32)
  48 #define CIPHER_KEY_LENGTH_AES_CBC (16)//==TEST
  49 #define CIPHER_IV_LENGTH_AES_CBC 16
  50
  51 #define MAXIMUM_IV_LENGTH 16
  52 #define IV_OFFSET (sizeof(struct rte_crypto_op) + sizeof(struct rte_crypto_sym_op))
  53
  54 #define MAX_SESSIONS 1024
  55 #define POOL_CACHE_SIZE 128
  56
  57 //#define NUM_OPS 256
  58 #define NUM_OPS 128
  59 struct task_esp {
  60         struct task_base base;
  61         uint8_t cdev_id;
  62         uint16_t qp_id;
  63         uint32_t local_ipv4;
  64         prox_rte_ether_addr local_mac;
  65         uint32_t remote_ipv4;
  66         prox_rte_ether_addr dst_mac;
  67         struct rte_mempool *crypto_op_pool;
  68         struct rte_mempool *session_pool;
  69         struct rte_cryptodev_sym_session *sess;
  70         struct rte_crypto_op *ops_burst[NUM_OPS];
  71         unsigned len;
  72         uint8_t (*handle_esp_finish)(struct task_esp *task,
  73                         struct rte_mbuf *mbuf, uint8_t status);
  74         uint8_t (*handle_esp_ah)(struct task_esp *task, struct rte_mbuf *mbuf,
  75                                 struct rte_crypto_op *cop);
  76 };
  77
  78 static uint8_t hmac_sha1_key[] = {
  79         0xF8, 0x2A, 0xC7, 0x54, 0xDB, 0x96, 0x18, 0xAA,
  80         0xC3, 0xA1, 0x53, 0xF6, 0x1F, 0x17, 0x60, 0xBD,
  81         0xDE, 0xF4, 0xDE, 0xAD };
  82
  83 static uint8_t aes_cbc_key[] = {
  84         0xE4, 0x23, 0x33, 0x8A, 0x35, 0x64, 0x61, 0xE2,
  85         0x49, 0x03, 0xDD, 0xC6, 0xB8, 0xCA, 0x55, 0x7A,
  86         0xE4, 0x23, 0x33, 0x8A, 0x35, 0x64, 0x61, 0xE2,
  87         0x49, 0x03, 0xDD, 0xC6, 0xB8, 0xCA, 0x55, 0x7A };
  88
  89 static uint8_t aes_cbc_iv[] = {
  90         0xE4, 0x23, 0x33, 0x8A, 0x35, 0x64, 0x61, 0xE2,
  91         0x49, 0x03, 0xDD, 0xC6, 0xB8, 0xCA, 0x55, 0x7A };
  92
  93 static void printf_cdev_info(uint8_t cdev_id)
  94 {
  95         struct rte_cryptodev_info dev_info;
  96         rte_cryptodev_info_get(cdev_id, &dev_info);
  97         plog_info("!!!numdevs:%d\n", rte_cryptodev_count());
  98         //uint16_t rte_cryptodev_queue_pair_count(uint8_t dev_id);
  99         plog_info("dev:%d name:%s nb_queue_pairs:%d max_nb_sessions:%d\n",
 100                 cdev_id, dev_info.driver_name, dev_info.max_nb_queue_pairs, dev_info.sym.max_nb_sessions);
 101         const struct rte_cryptodev_capabilities *cap = &dev_info.capabilities[0];
 102         int i=0;
 103         while (cap->op != RTE_CRYPTO_OP_TYPE_UNDEFINED) {
 104                 //plog_info("cap->sym.xform_type:%d,");
 105                 if (cap->sym.xform_type == RTE_CRYPTO_SYM_XFORM_CIPHER)
 106                         plog_info("RTE_CRYPTO_SYM_XFORM_CIPHER: %d\n", cap->sym.cipher.algo);
 107                 cap = &dev_info.capabilities[++i];
 108         }
 109 }
 110
 111 static uint8_t get_cdev_id(void)
 112 {
 113         static uint8_t last_unused_cdev_id=0;
 114         char name[64]={0};
 115         uint8_t cdev_count, cdev_id;
 116
 117         cdev_count = rte_cryptodev_count();
 118         plog_info("crypto dev count: %d \n", cdev_count);
 119         for (cdev_id = last_unused_cdev_id; cdev_id < cdev_count; cdev_id++) {
 120                 if (cdev_id != 1) {
 121                         printf_cdev_info(cdev_id);
 122                         last_unused_cdev_id = cdev_id + 1;
 123                         return cdev_id;
 124                 }
 125         }
 126         sprintf(name, "crypto_aesni_mb%d", cdev_count);
 127
 128 #if RTE_VERSION < RTE_VERSION_NUM(18,8,0,0)
 129         int ret = rte_vdev_init(name, "max_nb_queue_pairs=8,max_nb_sessions=1024,socket_id=0");
 130 #else
 131         int ret = rte_vdev_init(name, "max_nb_queue_pairs=8,socket_id=0");
 132 #endif
 133         PROX_PANIC(ret != 0, "Failed rte_vdev_init\n");
 134         cdev_id = rte_cryptodev_get_dev_id(name);
 135
 136         printf_cdev_info(cdev_id);
 137         last_unused_cdev_id = cdev_id + 1;
 138         return cdev_id;
 139 }
 140
 141 static inline uint8_t handle_enc_finish(struct task_esp *task,
 142                 struct rte_mbuf *mbuf, uint8_t status)
 143 {
 144         prox_rte_ether_hdr *peth = rte_pktmbuf_mtod(mbuf,
 145                         prox_rte_ether_hdr *);
 146         prox_rte_ipv4_hdr* pip4 = (prox_rte_ipv4_hdr *)(peth + 1);
 147         pip4->dst_addr =  task->remote_ipv4;
 148         pip4->src_addr = task->local_ipv4;
 149         prox_ip_cksum(mbuf, pip4, sizeof(prox_rte_ether_hdr),
 150                         sizeof(prox_rte_ipv4_hdr), 1);
 151         return 0;
 152 }
 153
 154 static inline uint8_t handle_dec_finish(struct task_esp *task,
 155                 struct rte_mbuf *mbuf, uint8_t status)
 156 {
 157         if (likely(status == RTE_CRYPTO_OP_STATUS_SUCCESS)) {
 158                 u8* m = rte_pktmbuf_mtod(mbuf, u8*);
 159                 rte_memcpy(m + sizeof(prox_rte_ipv4_hdr) +
 160                                 sizeof(struct prox_esp_hdr) +
 161                                 CIPHER_IV_LENGTH_AES_CBC, m,
 162                                 sizeof(prox_rte_ether_hdr));
 163                 m = (u8*)rte_pktmbuf_adj(mbuf, sizeof(prox_rte_ipv4_hdr) +
 164                                 sizeof(struct prox_esp_hdr) +
 165                                 CIPHER_IV_LENGTH_AES_CBC);
 166                 prox_rte_ipv4_hdr* pip4 = (prox_rte_ipv4_hdr *)(m +
 167                                 sizeof(prox_rte_ether_hdr));
 168
 169                 if (unlikely((pip4->version_ihl >> 4) != 4)) {
 170         //              plog_info("non IPv4 packet after esp dec %i\n",
 171         //                                      pip4->version_ihl);
 172         //              plogdx_info(mbuf, "DEC TX: ");
 173                         return OUT_DISCARD;
 174                 }
 175                 if (pip4->time_to_live) {
 176                         pip4->time_to_live--;
 177                 }
 178                 else {
 179                         plog_info("TTL = 0 => Dropping\n");
 180                         return OUT_DISCARD;
 181                 }
 182                 uint16_t ipv4_length = rte_be_to_cpu_16(pip4->total_length);
 183                 int len = rte_pktmbuf_pkt_len(mbuf);
 184                 rte_pktmbuf_trim(mbuf, len - sizeof(prox_rte_ether_hdr) -
 185                                 ipv4_length);
 186
 187 #if 0
 188                 do_ipv4_swap(task, mbuf);
 189 #else
 190                 prox_rte_ether_hdr *peth = rte_pktmbuf_mtod(mbuf,
 191                                 prox_rte_ether_hdr *);
 192                 prox_rte_ether_addr_copy(&task->local_mac, &peth->s_addr);
 193                 prox_rte_ether_addr_copy(&task->dst_mac, &peth->d_addr);
 194                 //rte_memcpy(peth, task->dst_mac, sizeof(task->dst_mac));
 195 #endif
 196                 pip4->dst_addr =  task->remote_ipv4;
 197                 pip4->src_addr = task->local_ipv4;
 198                 prox_ip_cksum(mbuf, pip4, sizeof(prox_rte_ether_hdr),
 199                                 sizeof(prox_rte_ipv4_hdr), 1);
 200                 return 0;
 201                 }
 202         else {
 203                 return OUT_DISCARD;
 204         }
 205 }
 206
 207 static inline uint8_t handle_esp_ah_enc(struct task_esp *task,
 208                 struct rte_mbuf *mbuf, struct rte_crypto_op *cop)
 209 {
 210         u8 *data;
 211         prox_rte_ether_hdr *peth = rte_pktmbuf_mtod(mbuf,
 212                         prox_rte_ether_hdr *);
 213         prox_rte_ipv4_hdr* pip4 = (prox_rte_ipv4_hdr *)(peth + 1);
 214         uint16_t ipv4_length = rte_be_to_cpu_16(pip4->total_length);
 215         struct rte_crypto_sym_op *sym_cop = cop->sym;
 216
 217         if (unlikely((pip4->version_ihl >> 4) != 4)) {
 218                 plog_info("Received non IPv4 packet at esp enc %i\n",
 219                                 pip4->version_ihl);
 220                 return OUT_DISCARD;
 221         }
 222         if (pip4->time_to_live) {
 223                 pip4->time_to_live--;
 224         }
 225         else {
 226                 plog_info("TTL = 0 => Dropping\n");
 227                 return OUT_DISCARD;
 228         }
 229
 230         // Remove padding if any (we don't want to encapsulate garbage at end of IPv4 packet)
 231         int l1 = rte_pktmbuf_pkt_len(mbuf);
 232         int padding = l1 - (ipv4_length + sizeof(prox_rte_ether_hdr));
 233         if (unlikely(padding > 0)) {
 234                 rte_pktmbuf_trim(mbuf, padding);
 235         }
 236
 237         l1 = rte_pktmbuf_pkt_len(mbuf);
 238         int encrypt_len = l1 - sizeof(prox_rte_ether_hdr) + 2; // According to RFC4303 table 1, encrypt len is ip+tfc_pad(o)+pad+pad len(1) + next header(1)
 239         padding = 0;
 240         if ((encrypt_len & 0xf) != 0){
 241                 padding = 16 - (encrypt_len % 16);
 242                 encrypt_len += padding;
 243         }
 244
 245         const int extra_space = sizeof(prox_rte_ipv4_hdr) +
 246                 sizeof(struct prox_esp_hdr) + CIPHER_IV_LENGTH_AES_CBC;
 247
 248         prox_rte_ether_addr src_mac = peth->s_addr;
 249         prox_rte_ether_addr dst_mac = peth->d_addr;
 250         uint32_t src_addr = pip4->src_addr;
 251         uint32_t dst_addr = pip4->dst_addr;
 252         uint8_t ttl = pip4->time_to_live;
 253         uint8_t version_ihl = pip4->version_ihl;
 254
 255         peth = (prox_rte_ether_hdr *)rte_pktmbuf_prepend(mbuf, extra_space); // encap + prefix
 256         peth = (prox_rte_ether_hdr *)rte_pktmbuf_append(mbuf, 0 + 1 + 1 +
 257                         padding + 4 + DIGEST_BYTE_LENGTH_SHA1); // padding + pad_len + next_head + seqn + ICV pad + ICV
 258         peth = rte_pktmbuf_mtod(mbuf, prox_rte_ether_hdr *);
 259         l1 = rte_pktmbuf_pkt_len(mbuf);
 260         peth->ether_type = ETYPE_IPv4;
 261 #if 0
 262         //send it back
 263         prox_rte_ether_addr_copy(&dst_mac, &peth->s_addr);
 264         prox_rte_ether_addr_copy(&src_mac, &peth->d_addr);
 265 #else
 266         prox_rte_ether_addr_copy(&task->local_mac, &peth->s_addr);
 267         //prox_rte_ether_addr_copy(&dst_mac, &peth->d_addr);//IS: dstmac should be rewritten by arp
 268         prox_rte_ether_addr_copy(&task->dst_mac, &peth->d_addr);
 269 #endif
 270
 271         pip4 = (prox_rte_ipv4_hdr *)(peth + 1);
 272         pip4->src_addr = task->local_ipv4;
 273         pip4->dst_addr = task->remote_ipv4;
 274         pip4->time_to_live = ttl;
 275         pip4->next_proto_id = IPPROTO_ESP; // 50 for ESP, ip in ip next proto trailer
 276         pip4->version_ihl = version_ihl; // 20 bytes, ipv4
 277         pip4->total_length = rte_cpu_to_be_16(ipv4_length +
 278                         sizeof(prox_rte_ipv4_hdr) + sizeof(struct prox_esp_hdr)
 279                         + CIPHER_IV_LENGTH_AES_CBC + padding + 1 + 1 +
 280                         DIGEST_BYTE_LENGTH_SHA1); // iphdr+SPI+SN+IV+payload+padding+padlen+next header + crc + auth
 281         pip4->packet_id = 0x0101;
 282         pip4->type_of_service = 0;
 283         pip4->time_to_live = 64;
 284         prox_ip_cksum(mbuf, pip4, sizeof(prox_rte_ether_hdr),
 285                         sizeof(prox_rte_ipv4_hdr), 1);
 286
 287         data = (u8*)(pip4 + 1);
 288 #if 0
 289         *((u32*) data) = 0x2016; // FIXME SPI
 290         *((u32*) data + 1) = 0x2; // FIXME SN
 291 #else
 292         struct prox_esp_hdr *pesp = (struct prox_esp_hdr*)(pip4+1);
 293         pesp->spi = src_addr;//for simplicity assume 1 tunnel per source ip
 294         static u32 sn = 0;
 295         pesp->seq = ++sn;
 296 //      pesp->spi=0xAAAAAAAA;//debug
 297 //      pesp->seq =0xBBBBBBBB;//debug
 298 #endif
 299         u8 *padl = (u8*)data + (8 + encrypt_len - 2 + CIPHER_IV_LENGTH_AES_CBC); // No ESN yet. (-2 means NH is crypted)
 300         //padl += CIPHER_IV_LENGTH_AES_CBC;
 301         *padl = padding;
 302         *(padl + 1) = 4; // ipv4 in 4
 303
 304         sym_cop->auth.digest.data = data + 8 + CIPHER_IV_LENGTH_AES_CBC +
 305                 encrypt_len;
 306         //sym_cop->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset(mbuf, (sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr) + 8 + CIPHER_IV_LENGTH_AES_CBC + encrypt_len));
 307         sym_cop->auth.digest.phys_addr = rte_pktmbuf_iova_offset(mbuf,
 308                         (sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr)
 309                         + 8 + CIPHER_IV_LENGTH_AES_CBC + encrypt_len));
 310         //sym_cop->auth.digest.length = DIGEST_BYTE_LENGTH_SHA1;
 311
 312         //sym_cop->cipher.iv.data = data + 8;
 313         //sym_cop->cipher.iv.phys_addr = rte_pktmbuf_mtophys(mbuf) + sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr) + 4 + 4;
 314         //sym_cop->cipher.iv.length = CIPHER_IV_LENGTH_AES_CBC;
 315
 316         //rte_memcpy(sym_cop->cipher.iv.data, aes_cbc_iv, CIPHER_IV_LENGTH_AES_CBC);
 317
 318         uint8_t *iv_ptr = rte_crypto_op_ctod_offset(cop, uint8_t *, IV_OFFSET);
 319         rte_memcpy(iv_ptr, aes_cbc_iv, CIPHER_IV_LENGTH_AES_CBC);
 320
 321 #if 0//old
 322         sym_cop->cipher.data.offset = sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr) + 4 + 4 + CIPHER_IV_LENGTH_AES_CBC;
 323         sym_cop->cipher.data.length = encrypt_len;
 324
 325         uint64_t *iv = (uint64_t *)(pesp + 1);
 326         memset(iv, 0, CIPHER_IV_LENGTH_AES_CBC);
 327 #else
 328         //uint64_t *iv = (uint64_t *)(pesp + 1);
 329         //memset(iv, 0, CIPHER_IV_LENGTH_AES_CBC);
 330         sym_cop->cipher.data.offset = sizeof(prox_rte_ether_hdr) +
 331                 sizeof(prox_rte_ipv4_hdr) + sizeof(struct prox_esp_hdr);
 332         sym_cop->cipher.data.length = encrypt_len + CIPHER_IV_LENGTH_AES_CBC;
 333 #endif
 334
 335         sym_cop->auth.data.offset = sizeof(prox_rte_ether_hdr) +
 336                 sizeof(prox_rte_ipv4_hdr);
 337         sym_cop->auth.data.length = sizeof(struct prox_esp_hdr) +
 338                 CIPHER_IV_LENGTH_AES_CBC + encrypt_len;// + 4;// FIXME
 339
 340         sym_cop->m_src = mbuf;
 341         rte_crypto_op_attach_sym_session(cop, task->sess);
 342
 343         //cop->type = RTE_CRYPTO_OP_TYPE_SYMMETRIC;
 344         //cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
 345
 346         return 0;
 347 }
 348
 349 static inline uint8_t handle_esp_ah_dec(struct task_esp *task,
 350                 struct rte_mbuf *mbuf, struct rte_crypto_op *cop)
 351 {
 352         struct rte_crypto_sym_op *sym_cop = cop->sym;
 353         prox_rte_ether_hdr *peth = rte_pktmbuf_mtod(mbuf,
 354                         prox_rte_ether_hdr *);
 355         prox_rte_ipv4_hdr* pip4 = (prox_rte_ipv4_hdr *)(peth + 1);
 356         uint16_t ipv4_length = rte_be_to_cpu_16(pip4->total_length);
 357         u8 *data = (u8*)(pip4 + 1);
 358
 359         if (pip4->next_proto_id != IPPROTO_ESP){
 360                 plog_info("Received non ESP packet on esp dec\n");
 361                 plogdx_info(mbuf, "DEC RX: ");
 362                 return OUT_DISCARD;
 363         }
 364
 365         rte_crypto_op_attach_sym_session(cop, task->sess);
 366
 367         sym_cop->auth.digest.data = (unsigned char *)((unsigned char*)pip4 +
 368                         ipv4_length - DIGEST_BYTE_LENGTH_SHA1);
 369         //sym_cop->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset(mbuf, sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr) + sizeof(struct prox_esp_hdr)); // FIXME
 370         sym_cop->auth.digest.phys_addr = rte_pktmbuf_iova_offset(mbuf,
 371                         sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr)
 372                         + sizeof(struct prox_esp_hdr));
 373         //sym_cop->auth.digest.length = DIGEST_BYTE_LENGTH_SHA1;
 374
 375         //sym_cop->cipher.iv.data = (uint8_t *)data + 8;
 376         //sym_cop->cipher.iv.phys_addr = rte_pktmbuf_mtophys(mbuf) + sizeof(prox_rte_ether_hdr) + sizeof(prox_rte_ipv4_hdr) + 4 + 4;
 377         //sym_cop->cipher.iv.length = CIPHER_IV_LENGTH_AES_CBC;
 378
 379 #if 0
 380         rte_memcpy(rte_crypto_op_ctod_offset(cop, uint8_t *, IV_OFFSET),
 381                                 aes_cbc_iv,
 382                                 CIPHER_IV_LENGTH_AES_CBC);
 383 #else
 384         uint8_t * iv = (uint8_t *)(pip4 + 1) + sizeof(struct prox_esp_hdr);
 385         rte_memcpy(rte_crypto_op_ctod_offset(cop, uint8_t *, IV_OFFSET),
 386                                 iv,
 387                                 CIPHER_IV_LENGTH_AES_CBC);
 388 #endif
 389
 390         sym_cop->auth.data.offset = sizeof(prox_rte_ether_hdr) +
 391                 sizeof(prox_rte_ipv4_hdr);
 392         sym_cop->auth.data.length = ipv4_length - sizeof(prox_rte_ipv4_hdr) - 4 -
 393                 CIPHER_IV_LENGTH_AES_CBC;
 394
 395         sym_cop->cipher.data.offset = sizeof(prox_rte_ether_hdr) +
 396                 sizeof(prox_rte_ipv4_hdr) + sizeof(struct prox_esp_hdr) +
 397                 CIPHER_IV_LENGTH_AES_CBC;
 398         sym_cop->cipher.data.length = ipv4_length - sizeof(prox_rte_ipv4_hdr) -
 399                 CIPHER_IV_LENGTH_AES_CBC - 28; // FIXME
 400
 401         sym_cop->m_src = mbuf;
 402         return 0;
 403 }
 404
 405 static inline void do_ipv4_swap(struct task_esp *task, struct rte_mbuf *mbuf)
 406 {
 407         prox_rte_ether_hdr *peth = rte_pktmbuf_mtod(mbuf,
 408                         prox_rte_ether_hdr *);
 409         prox_rte_ether_addr src_mac = peth->s_addr;
 410         prox_rte_ether_addr dst_mac = peth->d_addr;
 411         uint32_t src_ip, dst_ip;
 412
 413         prox_rte_ipv4_hdr* pip4 = (prox_rte_ipv4_hdr *)(peth + 1);
 414         src_ip = pip4->src_addr;
 415         dst_ip = pip4->dst_addr;
 416
 417         //peth->s_addr = dst_mac;
 418         peth->d_addr = src_mac;//should be replaced by arp
 419         pip4->src_addr = dst_ip;
 420         pip4->dst_addr = src_ip;
 421         prox_rte_ether_addr_copy(&task->local_mac, &peth->s_addr);
 422 }
 423
 424
 425 static void init_task_esp_enc(struct task_base *tbase, struct task_args *targ)
 426 {
 427         struct task_esp *task = (struct task_esp *)tbase;
 428         unsigned int session_size;
 429
 430         tbase->flags |= TBASE_FLAG_NEVER_FLUSH;
 431
 432         uint8_t lcore_id = targ->lconf->id;
 433         char name[64];
 434         task->handle_esp_finish = handle_enc_finish;
 435         task->handle_esp_ah = handle_esp_ah_enc;
 436         task->len = 0;
 437         sprintf(name, "core_%03u_crypto_pool", lcore_id);
 438         task->crypto_op_pool = rte_crypto_op_pool_create(name,
 439                         RTE_CRYPTO_OP_TYPE_SYMMETRIC, targ->nb_mbuf, 128,
 440                         MAXIMUM_IV_LENGTH, rte_socket_id());
 441         plog_info("rte_crypto_op_pool_create nb_elements =%d\n",
 442                         targ->nb_mbuf);
 443         PROX_PANIC(task->crypto_op_pool == NULL, "Can't create ENC \
 444                         CRYPTO_OP_POOL\n");
 445
 446         task->cdev_id = get_cdev_id();
 447
 448         struct rte_cryptodev_config cdev_conf;
 449         cdev_conf.nb_queue_pairs = 2;
 450         cdev_conf.socket_id = rte_socket_id();
 451         rte_cryptodev_configure(task->cdev_id, &cdev_conf);
 452
 453         session_size = rte_cryptodev_sym_get_private_session_size(
 454                         task->cdev_id);
 455         plog_info("rte_cryptodev_sym_get_private_session_size=%d\n",
 456                         session_size);
 457         sprintf(name, "core_%03u_session_pool", lcore_id);
 458         task->session_pool = rte_cryptodev_sym_session_pool_create(name,
 459                                 MAX_SESSIONS,
 460                                 session_size,
 461                                 POOL_CACHE_SIZE,
 462                                 0, rte_socket_id());
 463         PROX_PANIC(task->session_pool == NULL, "Failed rte_mempool_create\n");
 464
 465         task->qp_id=0;
 466         plog_info("enc: task->qp_id=%u\n", task->qp_id);
 467         struct prox_rte_cryptodev_qp_conf qp_conf;
 468         qp_conf.nb_descriptors = 2048;
 469         qp_conf.mp_session = task->session_pool;
 470         prox_rte_cryptodev_queue_pair_setup(task->cdev_id, task->qp_id,
 471                         &qp_conf, rte_cryptodev_socket_id(task->cdev_id));
 472
 473         int ret = rte_cryptodev_start(task->cdev_id);
 474         PROX_PANIC(ret < 0, "Failed to start device\n");
 475
 476         //Setup Cipher Parameters
 477         struct rte_crypto_sym_xform cipher_xform = {0};
 478         struct rte_crypto_sym_xform auth_xform = {0};
 479
 480         cipher_xform.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
 481 //      cipher_xform.next = &auth_xform;
 482         cipher_xform.next = NULL; //CRYPTO_ONLY
 483
 484         cipher_xform.cipher.algo = RTE_CRYPTO_CIPHER_AES_CBC;
 485         cipher_xform.cipher.op = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 486         cipher_xform.cipher.key.data = aes_cbc_key;
 487         cipher_xform.cipher.key.length = CIPHER_KEY_LENGTH_AES_CBC;
 488
 489         cipher_xform.cipher.iv.offset = IV_OFFSET;
 490         cipher_xform.cipher.iv.length = CIPHER_IV_LENGTH_AES_CBC;
 491
 492         //Setup HMAC Parameters
 493         auth_xform.type = RTE_CRYPTO_SYM_XFORM_AUTH;
 494         auth_xform.next = NULL;
 495         auth_xform.auth.op = RTE_CRYPTO_AUTH_OP_GENERATE;
 496         auth_xform.auth.algo = RTE_CRYPTO_AUTH_SHA1_HMAC;
 497         auth_xform.auth.key.length = DIGEST_BYTE_LENGTH_SHA1;
 498         auth_xform.auth.key.data = hmac_sha1_key;
 499         auth_xform.auth.digest_length = DIGEST_BYTE_LENGTH_SHA1;
 500
 501         auth_xform.auth.iv.offset = 0;
 502         auth_xform.auth.iv.length = 0;
 503
 504         task->sess = rte_cryptodev_sym_session_create(task->cdev_id,
 505                         &cipher_xform, task->session_pool);
 506         PROX_PANIC(task->sess < 0, "Failed ENC sym_session_create\n");
 507
 508         task->local_ipv4 = rte_cpu_to_be_32(targ->local_ipv4);
 509         task->remote_ipv4 = rte_cpu_to_be_32(targ->remote_ipv4);
 510         //memcpy(&task->src_mac, &prox_port_cfg[task->base.tx_params_hw.tx_port_queue->port].eth_addr, sizeof(prox_rte_ether_addr));
 511         struct prox_port_cfg *port = find_reachable_port(targ);
 512         memcpy(&task->local_mac, &port->eth_addr, sizeof(prox_rte_ether_addr));
 513
 514         if (targ->flags & TASK_ARG_DST_MAC_SET){
 515                 memcpy(&task->dst_mac, &targ->edaddr, sizeof(task->dst_mac));
 516                 plog_info("TASK_ARG_DST_MAC_SET ("MAC_BYTES_FMT")\n",
 517                                 MAC_BYTES(task->dst_mac.addr_bytes));
 518                 //prox_rte_ether_addr_copy(&ptask->dst_mac, &peth->d_addr);
 519                 //rte_memcpy(hdr, task->src_dst_mac, sizeof(task->src_dst_mac));
 520         }
 521 }
 522
 523 static void init_task_esp_dec(struct task_base *tbase, struct task_args *targ)
 524 {
 525         struct task_esp *task = (struct task_esp *)tbase;
 526         unsigned int session_size;
 527
 528         tbase->flags |= TBASE_FLAG_NEVER_FLUSH;
 529
 530         uint8_t lcore_id = targ->lconf->id;
 531         char name[64];
 532         task->handle_esp_finish = handle_dec_finish;
 533         task->handle_esp_ah = handle_esp_ah_dec;
 534         task->len = 0;
 535         sprintf(name, "core_%03u_crypto_pool", lcore_id);
 536         task->crypto_op_pool = rte_crypto_op_pool_create(name,
 537                         RTE_CRYPTO_OP_TYPE_SYMMETRIC, targ->nb_mbuf, 128,
 538                         MAXIMUM_IV_LENGTH, rte_socket_id());
 539         PROX_PANIC(task->crypto_op_pool == NULL, "Can't create DEC \
 540                         CRYPTO_OP_POOL\n");
 541
 542         task->cdev_id = get_cdev_id();
 543         struct rte_cryptodev_config cdev_conf;
 544         cdev_conf.nb_queue_pairs = 2;
 545         cdev_conf.socket_id = SOCKET_ID_ANY;
 546         cdev_conf.socket_id = rte_socket_id();
 547         rte_cryptodev_configure(task->cdev_id, &cdev_conf);
 548
 549         session_size = rte_cryptodev_sym_get_private_session_size(
 550                         task->cdev_id);
 551         plog_info("rte_cryptodev_sym_get_private_session_size=%d\n",
 552                         session_size);
 553         sprintf(name, "core_%03u_session_pool", lcore_id);
 554         task->session_pool = rte_cryptodev_sym_session_pool_create(name,
 555                                 MAX_SESSIONS,
 556                                 session_size,
 557                                 POOL_CACHE_SIZE,
 558                                 0, rte_socket_id());
 559         PROX_PANIC(task->session_pool == NULL, "Failed rte_mempool_create\n");
 560
 561         task->qp_id=0;
 562         plog_info("dec: task->qp_id=%u\n", task->qp_id);
 563         struct prox_rte_cryptodev_qp_conf qp_conf;
 564         qp_conf.nb_descriptors = 2048;
 565         qp_conf.mp_session = task->session_pool;
 566         prox_rte_cryptodev_queue_pair_setup(task->cdev_id, task->qp_id,
 567                         &qp_conf, rte_cryptodev_socket_id(task->cdev_id));
 568
 569         int ret = rte_cryptodev_start(task->cdev_id);
 570         PROX_PANIC(ret < 0, "Failed to start device\n");
 571
 572         //Setup Cipher Parameters
 573         struct rte_crypto_sym_xform cipher_xform = {0};
 574         struct rte_crypto_sym_xform auth_xform = {0};
 575
 576         cipher_xform.type = RTE_CRYPTO_SYM_XFORM_CIPHER;
 577         cipher_xform.next = NULL;
 578         cipher_xform.cipher.algo = RTE_CRYPTO_CIPHER_AES_CBC;
 579         cipher_xform.cipher.op = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 580         cipher_xform.cipher.key.data = aes_cbc_key;
 581         cipher_xform.cipher.key.length = CIPHER_KEY_LENGTH_AES_CBC;
 582
 583         cipher_xform.cipher.iv.offset = IV_OFFSET;
 584         cipher_xform.cipher.iv.length = CIPHER_IV_LENGTH_AES_CBC;
 585
 586         //Setup HMAC Parameters
 587         auth_xform.type = RTE_CRYPTO_SYM_XFORM_AUTH;
 588         auth_xform.next = &cipher_xform;
 589         auth_xform.auth.op = RTE_CRYPTO_AUTH_OP_VERIFY;
 590         auth_xform.auth.algo = RTE_CRYPTO_AUTH_SHA1_HMAC;
 591         auth_xform.auth.key.length = DIGEST_BYTE_LENGTH_SHA1;
 592         auth_xform.auth.key.data = hmac_sha1_key;
 593         auth_xform.auth.digest_length = DIGEST_BYTE_LENGTH_SHA1;
 594
 595         auth_xform.auth.iv.offset = 0;
 596         auth_xform.auth.iv.length = 0;
 597
 598         task->sess = rte_cryptodev_sym_session_create(task->cdev_id, &cipher_xform,
 599                         task->session_pool);
 600         PROX_PANIC(task->sess < 0, "Failed DEC sym_session_create\n");
 601
 602         task->local_ipv4 = rte_cpu_to_be_32(targ->local_ipv4);
 603         task->remote_ipv4 = rte_cpu_to_be_32(targ->remote_ipv4);
 604         //memcpy(&task->src_mac, &prox_port_cfg[task->base.tx_params_hw.tx_port_queue->port].eth_addr, sizeof(prox_rte_ether_addr));
 605         struct prox_port_cfg *port = find_reachable_port(targ);
 606         memcpy(&task->local_mac, &port->eth_addr, sizeof(prox_rte_ether_addr));
 607
 608         if (targ->flags & TASK_ARG_DST_MAC_SET){
 609                 memcpy(&task->dst_mac, &targ->edaddr, sizeof(task->dst_mac));
 610                 plog_info("TASK_ARG_DST_MAC_SET ("MAC_BYTES_FMT")\n",
 611                                 MAC_BYTES(task->dst_mac.addr_bytes));
 612                 //prox_rte_ether_addr_copy(&ptask->dst_mac, &peth->d_addr);
 613                 //rte_memcpy(hdr, task->src_dst_mac, sizeof(task->src_dst_mac));
 614         }
 615 }
 616
 617 static int crypto_send_burst(struct task_esp *task, uint16_t n)
 618 {
 619     uint8_t out[MAX_PKT_BURST];
 620     struct rte_mbuf *mbufs[MAX_PKT_BURST];
 621     unsigned ret;
 622     unsigned i = 0;
 623     ret = rte_cryptodev_enqueue_burst(task->cdev_id,
 624             task->qp_id, task->ops_burst, n);
 625     if (unlikely(ret < n)) {
 626         for (i = 0; i < (n-ret); i++) {
 627                 mbufs[i] = task->ops_burst[ret + i]->sym->m_src;
 628                 out[i] = OUT_DISCARD;
 629                 rte_crypto_op_free(task->ops_burst[ret + i]);
 630         }
 631         return task->base.tx_pkt(&task->base, mbufs, i, out);
 632     }
 633     return 0;
 634 }
 635
 636 static int handle_esp_bulk(struct task_base *tbase, struct rte_mbuf **mbufs,
 637                 uint16_t n_pkts)
 638 {
 639         struct task_esp *task = (struct task_esp *)tbase;
 640         uint8_t out[MAX_PKT_BURST];
 641         uint8_t result = 0;
 642         uint16_t nb_deq = 0, j, idx = 0;
 643         struct rte_mbuf *drop_mbufs[MAX_PKT_BURST];
 644         struct rte_crypto_op *ops_burst[MAX_PKT_BURST];
 645         int nbr_tx_pkt = 0;
 646
 647         if (rte_crypto_op_bulk_alloc(task->crypto_op_pool,
 648                         RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 649                         ops_burst, n_pkts) != n_pkts) {
 650                 plog_info("Failed to allocate crypto operations, discarding \
 651                                 %d packets\n", n_pkts);
 652                 for (j = 0; j < n_pkts; j++) {
 653                         out[j] = OUT_DISCARD;
 654                 }
 655                 nbr_tx_pkt += task->base.tx_pkt(&task->base, mbufs, n_pkts,
 656                                 out);
 657         }
 658         else {
 659                 for (j = 0; j < n_pkts; j++) {
 660                         result = task->handle_esp_ah(task, mbufs[j],
 661                                         ops_burst[j]);
 662                         if (result == 0) {
 663                                 task->ops_burst[task->len] = ops_burst[j];
 664                                 task->len++;
 665                                 /* enough ops to be sent */
 666                                 if (task->len == MAX_PKT_BURST) {
 667                                         nbr_tx_pkt += crypto_send_burst(task,
 668                                                         (uint16_t) MAX_PKT_BURST);
 669                                         task->len = 0;
 670                                 }
 671                         }
 672                         else {
 673                                 drop_mbufs[idx] = mbufs[j];
 674                                 out[idx] = result;
 675                                 idx++;
 676                                 rte_crypto_op_free(ops_burst[j]);
 677                                 plog_info("Failed handle_esp_ah for 1 \
 678                                                 packet\n");
 679                         }
 680                 }
 681                 if (idx) nbr_tx_pkt += task->base.tx_pkt(&task->base,
 682                                 drop_mbufs, idx, out);
 683         }
 684         do {
 685                 nb_deq = rte_cryptodev_dequeue_burst(task->cdev_id,
 686                                 task->qp_id, ops_burst, MAX_PKT_BURST);
 687                 for (j = 0; j < nb_deq; j++) {
 688                         mbufs[j] = ops_burst[j]->sym->m_src;
 689                         out[j] = task->handle_esp_finish(task, mbufs[j],
 690                                         ops_burst[j]->status);
 691                         rte_crypto_op_free(ops_burst[j]);
 692                 }
 693                 nbr_tx_pkt += task->base.tx_pkt(&task->base, mbufs, nb_deq,
 694                                 out);
 695         } while (nb_deq == MAX_PKT_BURST);
 696         return nbr_tx_pkt;
 697 }
 698
 699 struct task_init task_init_esp_enc = {
 700         .mode = ESP_ENC,
 701         .mode_str = "esp_enc",
 702         .init = init_task_esp_enc,
 703         .handle = handle_esp_bulk,
 704         .size = sizeof(struct task_esp),
 705 };
 706
 707 struct task_init task_init_esp_dec = {
 708         .mode = ESP_DEC,
 709         .mode_str = "esp_dec",
 710         .init = init_task_esp_dec,
 711         .handle = handle_esp_bulk,
 712         .size = sizeof(struct task_esp),
 713 };
 714
 715 __attribute__((constructor)) static void reg_task_esp_enc(void)
 716 {
 717         reg_task(&task_init_esp_enc);
 718 }
 719
 720 __attribute__((constructor)) static void reg_task_esp_dec(void)
 721 {
 722         reg_task(&task_init_esp_dec);
 723 }