drivers/crypto/octeontx2/otx2_cryptodev_sec.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (C) 2020 Marvell International Ltd.
   3  */
   4
   5 #include <rte_cryptodev.h>
   6 #include <rte_esp.h>
   7 #include <rte_ethdev.h>
   8 #include <rte_ip.h>
   9 #include <rte_malloc.h>
  10 #include <rte_security.h>
  11 #include <rte_security_driver.h>
  12 #include <rte_udp.h>
  13
  14 #include "otx2_cryptodev.h"
  15 #include "otx2_cryptodev_capabilities.h"
  16 #include "otx2_cryptodev_hw_access.h"
  17 #include "otx2_cryptodev_ops.h"
  18 #include "otx2_cryptodev_sec.h"
  19 #include "otx2_security.h"
  20
  21 static int
  22 ipsec_lp_len_precalc(struct rte_security_ipsec_xform *ipsec,
  23                 struct rte_crypto_sym_xform *xform,
  24                 struct otx2_sec_session_ipsec_lp *lp)
  25 {
  26         struct rte_crypto_sym_xform *cipher_xform, *auth_xform;
  27
  28         lp->partial_len = 0;
  29         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
  30                 if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4)
  31                         lp->partial_len = sizeof(struct rte_ipv4_hdr);
  32                 else if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV6)
  33                         lp->partial_len = sizeof(struct rte_ipv6_hdr);
  34                 else
  35                         return -EINVAL;
  36         }
  37
  38         if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_ESP) {
  39                 lp->partial_len += sizeof(struct rte_esp_hdr);
  40                 lp->roundup_len = sizeof(struct rte_esp_tail);
  41         } else if (ipsec->proto == RTE_SECURITY_IPSEC_SA_PROTO_AH) {
  42                 lp->partial_len += OTX2_SEC_AH_HDR_LEN;
  43         } else {
  44                 return -EINVAL;
  45         }
  46
  47         if (ipsec->options.udp_encap)
  48                 lp->partial_len += sizeof(struct rte_udp_hdr);
  49
  50         if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
  51                 if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM) {
  52                         lp->partial_len += OTX2_SEC_AES_GCM_IV_LEN;
  53                         lp->partial_len += OTX2_SEC_AES_GCM_MAC_LEN;
  54                         lp->roundup_byte = OTX2_SEC_AES_GCM_ROUNDUP_BYTE_LEN;
  55                         return 0;
  56                 } else {
  57                         return -EINVAL;
  58                 }
  59         }
  60
  61         if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_EGRESS) {
  62                 cipher_xform = xform;
  63                 auth_xform = xform->next;
  64         } else if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) {
  65                 auth_xform = xform;
  66                 cipher_xform = xform->next;
  67         } else {
  68                 return -EINVAL;
  69         }
  70
  71         if (cipher_xform->cipher.algo == RTE_CRYPTO_CIPHER_AES_CBC) {
  72                 lp->partial_len += OTX2_SEC_AES_CBC_IV_LEN;
  73                 lp->roundup_byte = OTX2_SEC_AES_CBC_ROUNDUP_BYTE_LEN;
  74         } else {
  75                 return -EINVAL;
  76         }
  77
  78         if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
  79                 lp->partial_len += OTX2_SEC_SHA1_HMAC_LEN;
  80         else if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA256_HMAC)
  81                 lp->partial_len += OTX2_SEC_SHA2_HMAC_LEN;
  82         else
  83                 return -EINVAL;
  84
  85         return 0;
  86 }
  87
  88 static int
  89 otx2_cpt_enq_sa_write(struct otx2_sec_session_ipsec_lp *lp,
  90                       struct otx2_cpt_qp *qptr, uint8_t opcode)
  91 {
  92         uint64_t lmt_status, time_out;
  93         void *lmtline = qptr->lmtline;
  94         struct otx2_cpt_inst_s inst;
  95         struct otx2_cpt_res *res;
  96         uint64_t *mdata;
  97         int ret = 0;
  98
  99         if (unlikely(rte_mempool_get(qptr->meta_info.pool,
 100                                      (void **)&mdata) < 0))
 101                 return -ENOMEM;
 102
 103         res = (struct otx2_cpt_res *)RTE_PTR_ALIGN(mdata, 16);
 104         res->compcode = CPT_9X_COMP_E_NOTDONE;
 105
 106         inst.opcode = opcode | (lp->ctx_len << 8);
 107         inst.param1 = 0;
 108         inst.param2 = 0;
 109         inst.dlen = lp->ctx_len << 3;
 110         inst.dptr = rte_mempool_virt2iova(lp);
 111         inst.rptr = 0;
 112         inst.cptr = rte_mempool_virt2iova(lp);
 113         inst.egrp  = OTX2_CPT_EGRP_SE;
 114
 115         inst.u64[0] = 0;
 116         inst.u64[2] = 0;
 117         inst.u64[3] = 0;
 118         inst.res_addr = rte_mempool_virt2iova(res);
 119
 120         rte_io_wmb();
 121
 122         do {
 123                 /* Copy CPT command to LMTLINE */
 124                 otx2_lmt_mov(lmtline, &inst, 2);
 125                 lmt_status = otx2_lmt_submit(qptr->lf_nq_reg);
 126         } while (lmt_status == 0);
 127
 128         time_out = rte_get_timer_cycles() +
 129                         DEFAULT_COMMAND_TIMEOUT * rte_get_timer_hz();
 130
 131         while (res->compcode == CPT_9X_COMP_E_NOTDONE) {
 132                 if (rte_get_timer_cycles() > time_out) {
 133                         rte_mempool_put(qptr->meta_info.pool, mdata);
 134                         otx2_err("Request timed out");
 135                         return -ETIMEDOUT;
 136                 }
 137             rte_io_rmb();
 138         }
 139
 140         if (unlikely(res->compcode != CPT_9X_COMP_E_GOOD)) {
 141                 ret = res->compcode;
 142                 switch (ret) {
 143                 case CPT_9X_COMP_E_INSTERR:
 144                         otx2_err("Request failed with instruction error");
 145                         break;
 146                 case CPT_9X_COMP_E_FAULT:
 147                         otx2_err("Request failed with DMA fault");
 148                         break;
 149                 case CPT_9X_COMP_E_HWERR:
 150                         otx2_err("Request failed with hardware error");
 151                         break;
 152                 default:
 153                         otx2_err("Request failed with unknown hardware "
 154                                  "completion code : 0x%x", ret);
 155                 }
 156                 goto mempool_put;
 157         }
 158
 159         if (unlikely(res->uc_compcode != OTX2_IPSEC_PO_CC_SUCCESS)) {
 160                 ret = res->uc_compcode;
 161                 switch (ret) {
 162                 case OTX2_IPSEC_PO_CC_AUTH_UNSUPPORTED:
 163                         otx2_err("Invalid auth type");
 164                         break;
 165                 case OTX2_IPSEC_PO_CC_ENCRYPT_UNSUPPORTED:
 166                         otx2_err("Invalid encrypt type");
 167                         break;
 168                 default:
 169                         otx2_err("Request failed with unknown microcode "
 170                                  "completion code : 0x%x", ret);
 171                 }
 172         }
 173
 174 mempool_put:
 175         rte_mempool_put(qptr->meta_info.pool, mdata);
 176         return ret;
 177 }
 178
 179 static void
 180 set_session_misc_attributes(struct otx2_sec_session_ipsec_lp *sess,
 181                             struct rte_crypto_sym_xform *crypto_xform,
 182                             struct rte_crypto_sym_xform *auth_xform,
 183                             struct rte_crypto_sym_xform *cipher_xform)
 184 {
 185         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 186                 sess->iv_offset = crypto_xform->aead.iv.offset;
 187                 sess->iv_length = crypto_xform->aead.iv.length;
 188                 sess->aad_length = crypto_xform->aead.aad_length;
 189                 sess->mac_len = crypto_xform->aead.digest_length;
 190         } else {
 191                 sess->iv_offset = cipher_xform->cipher.iv.offset;
 192                 sess->iv_length = cipher_xform->cipher.iv.length;
 193                 sess->auth_iv_offset = auth_xform->auth.iv.offset;
 194                 sess->auth_iv_length = auth_xform->auth.iv.length;
 195                 sess->mac_len = auth_xform->auth.digest_length;
 196         }
 197 }
 198
 199 static int
 200 crypto_sec_ipsec_outb_session_create(struct rte_cryptodev *crypto_dev,
 201                                      struct rte_security_ipsec_xform *ipsec,
 202                                      struct rte_crypto_sym_xform *crypto_xform,
 203                                      struct rte_security_session *sec_sess)
 204 {
 205         struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
 206         struct otx2_ipsec_po_ip_template *template = NULL;
 207         const uint8_t *cipher_key, *auth_key;
 208         struct otx2_sec_session_ipsec_lp *lp;
 209         struct otx2_ipsec_po_sa_ctl *ctl;
 210         int cipher_key_len, auth_key_len;
 211         struct otx2_ipsec_po_out_sa *sa;
 212         struct otx2_sec_session *sess;
 213         struct otx2_cpt_inst_s inst;
 214         struct rte_ipv6_hdr *ip6;
 215         struct rte_ipv4_hdr *ip;
 216         int ret, ctx_len;
 217
 218         sess = get_sec_session_private_data(sec_sess);
 219         sess->ipsec.dir = RTE_SECURITY_IPSEC_SA_DIR_EGRESS;
 220         lp = &sess->ipsec.lp;
 221
 222         sa = &lp->out_sa;
 223         ctl = &sa->ctl;
 224         if (ctl->valid) {
 225                 otx2_err("SA already registered");
 226                 return -EINVAL;
 227         }
 228
 229         memset(sa, 0, sizeof(struct otx2_ipsec_po_out_sa));
 230
 231         /* Initialize lookaside ipsec private data */
 232         lp->ip_id = 0;
 233         lp->seq_lo = 1;
 234         lp->seq_hi = 0;
 235
 236         ret = ipsec_po_sa_ctl_set(ipsec, crypto_xform, ctl);
 237         if (ret)
 238                 return ret;
 239
 240         ret = ipsec_lp_len_precalc(ipsec, crypto_xform, lp);
 241         if (ret)
 242                 return ret;
 243
 244         /* Start ip id from 1 */
 245         lp->ip_id = 1;
 246
 247         if (ctl->enc_type == OTX2_IPSEC_PO_SA_ENC_AES_GCM) {
 248                 template = &sa->aes_gcm.template;
 249                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 250                                 aes_gcm.template) + sizeof(
 251                                 sa->aes_gcm.template.ip4);
 252                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 253                 lp->ctx_len = ctx_len >> 3;
 254         } else if (ctl->auth_type ==
 255                         OTX2_IPSEC_PO_SA_AUTH_SHA1) {
 256                 template = &sa->sha1.template;
 257                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 258                                 sha1.template) + sizeof(
 259                                 sa->sha1.template.ip4);
 260                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 261                 lp->ctx_len = ctx_len >> 3;
 262         } else if (ctl->auth_type ==
 263                         OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
 264                 template = &sa->sha2.template;
 265                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 266                                 sha2.template) + sizeof(
 267                                 sa->sha2.template.ip4);
 268                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 269                 lp->ctx_len = ctx_len >> 3;
 270         } else {
 271                 return -EINVAL;
 272         }
 273         ip = &template->ip4.ipv4_hdr;
 274         if (ipsec->options.udp_encap) {
 275                 ip->next_proto_id = IPPROTO_UDP;
 276                 template->ip4.udp_src = rte_be_to_cpu_16(4500);
 277                 template->ip4.udp_dst = rte_be_to_cpu_16(4500);
 278         } else {
 279                 ip->next_proto_id = IPPROTO_ESP;
 280         }
 281
 282         if (ipsec->mode == RTE_SECURITY_IPSEC_SA_MODE_TUNNEL) {
 283                 if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4) {
 284                         ip->version_ihl = RTE_IPV4_VHL_DEF;
 285                         ip->time_to_live = ipsec->tunnel.ipv4.ttl;
 286                         ip->type_of_service |= (ipsec->tunnel.ipv4.dscp << 2);
 287                         if (ipsec->tunnel.ipv4.df)
 288                                 ip->fragment_offset = BIT(14);
 289                         memcpy(&ip->src_addr, &ipsec->tunnel.ipv4.src_ip,
 290                                 sizeof(struct in_addr));
 291                         memcpy(&ip->dst_addr, &ipsec->tunnel.ipv4.dst_ip,
 292                                 sizeof(struct in_addr));
 293                 } else if (ipsec->tunnel.type ==
 294                                 RTE_SECURITY_IPSEC_TUNNEL_IPV6) {
 295
 296                         if (ctl->enc_type == OTX2_IPSEC_PO_SA_ENC_AES_GCM) {
 297                                 template = &sa->aes_gcm.template;
 298                                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 299                                                 aes_gcm.template) + sizeof(
 300                                                 sa->aes_gcm.template.ip6);
 301                                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 302                                 lp->ctx_len = ctx_len >> 3;
 303                         } else if (ctl->auth_type ==
 304                                         OTX2_IPSEC_PO_SA_AUTH_SHA1) {
 305                                 template = &sa->sha1.template;
 306                                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 307                                                 sha1.template) + sizeof(
 308                                                 sa->sha1.template.ip6);
 309                                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 310                                 lp->ctx_len = ctx_len >> 3;
 311                         } else if (ctl->auth_type ==
 312                                         OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
 313                                 template = &sa->sha2.template;
 314                                 ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
 315                                                 sha2.template) + sizeof(
 316                                                 sa->sha2.template.ip6);
 317                                 ctx_len = RTE_ALIGN_CEIL(ctx_len, 8);
 318                                 lp->ctx_len = ctx_len >> 3;
 319                         } else {
 320                                 return -EINVAL;
 321                         }
 322
 323                         ip6 = &template->ip6.ipv6_hdr;
 324                         if (ipsec->options.udp_encap) {
 325                                 ip6->proto = IPPROTO_UDP;
 326                                 template->ip6.udp_src = rte_be_to_cpu_16(4500);
 327                                 template->ip6.udp_dst = rte_be_to_cpu_16(4500);
 328                         } else {
 329                                 ip6->proto = (ipsec->proto ==
 330                                         RTE_SECURITY_IPSEC_SA_PROTO_ESP) ?
 331                                         IPPROTO_ESP : IPPROTO_AH;
 332                         }
 333                         ip6->vtc_flow = rte_cpu_to_be_32(0x60000000 |
 334                                 ((ipsec->tunnel.ipv6.dscp <<
 335                                         RTE_IPV6_HDR_TC_SHIFT) &
 336                                         RTE_IPV6_HDR_TC_MASK) |
 337                                 ((ipsec->tunnel.ipv6.flabel <<
 338                                         RTE_IPV6_HDR_FL_SHIFT) &
 339                                         RTE_IPV6_HDR_FL_MASK));
 340                         ip6->hop_limits = ipsec->tunnel.ipv6.hlimit;
 341                         memcpy(&ip6->src_addr, &ipsec->tunnel.ipv6.src_addr,
 342                                 sizeof(struct in6_addr));
 343                         memcpy(&ip6->dst_addr, &ipsec->tunnel.ipv6.dst_addr,
 344                                 sizeof(struct in6_addr));
 345                 }
 346         }
 347
 348         cipher_xform = crypto_xform;
 349         auth_xform = crypto_xform->next;
 350
 351         cipher_key_len = 0;
 352         auth_key_len = 0;
 353
 354         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 355                 if (crypto_xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM)
 356                         memcpy(sa->iv.gcm.nonce, &ipsec->salt, 4);
 357                 cipher_key = crypto_xform->aead.key.data;
 358                 cipher_key_len = crypto_xform->aead.key.length;
 359         } else {
 360                 cipher_key = cipher_xform->cipher.key.data;
 361                 cipher_key_len = cipher_xform->cipher.key.length;
 362                 auth_key = auth_xform->auth.key.data;
 363                 auth_key_len = auth_xform->auth.key.length;
 364
 365                 if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC)
 366                         memcpy(sa->sha1.hmac_key, auth_key, auth_key_len);
 367                 else if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA256_HMAC)
 368                         memcpy(sa->sha2.hmac_key, auth_key, auth_key_len);
 369         }
 370
 371         if (cipher_key_len != 0)
 372                 memcpy(sa->cipher_key, cipher_key, cipher_key_len);
 373         else
 374                 return -EINVAL;
 375
 376         inst.u64[7] = 0;
 377         inst.egrp = OTX2_CPT_EGRP_SE;
 378         inst.cptr = rte_mempool_virt2iova(sa);
 379
 380         lp->cpt_inst_w7 = inst.u64[7];
 381         lp->ucmd_opcode = (lp->ctx_len << 8) |
 382                                 (OTX2_IPSEC_PO_PROCESS_IPSEC_OUTB);
 383
 384         /* Set per packet IV and IKEv2 bits */
 385         lp->ucmd_param1 = BIT(11) | BIT(9);
 386         lp->ucmd_param2 = 0;
 387
 388         set_session_misc_attributes(lp, crypto_xform,
 389                                     auth_xform, cipher_xform);
 390
 391         return otx2_cpt_enq_sa_write(lp, crypto_dev->data->queue_pairs[0],
 392                                      OTX2_IPSEC_PO_WRITE_IPSEC_OUTB);
 393 }
 394
 395 static int
 396 crypto_sec_ipsec_inb_session_create(struct rte_cryptodev *crypto_dev,
 397                                     struct rte_security_ipsec_xform *ipsec,
 398                                     struct rte_crypto_sym_xform *crypto_xform,
 399                                     struct rte_security_session *sec_sess)
 400 {
 401         struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
 402         const uint8_t *cipher_key, *auth_key;
 403         struct otx2_sec_session_ipsec_lp *lp;
 404         struct otx2_ipsec_po_sa_ctl *ctl;
 405         int cipher_key_len, auth_key_len;
 406         struct otx2_ipsec_po_in_sa *sa;
 407         struct otx2_sec_session *sess;
 408         struct otx2_cpt_inst_s inst;
 409         int ret;
 410
 411         sess = get_sec_session_private_data(sec_sess);
 412         sess->ipsec.dir = RTE_SECURITY_IPSEC_SA_DIR_INGRESS;
 413         lp = &sess->ipsec.lp;
 414
 415         sa = &lp->in_sa;
 416         ctl = &sa->ctl;
 417
 418         if (ctl->valid) {
 419                 otx2_err("SA already registered");
 420                 return -EINVAL;
 421         }
 422
 423         memset(sa, 0, sizeof(struct otx2_ipsec_po_in_sa));
 424         sa->replay_win_sz = ipsec->replay_win_sz;
 425
 426         ret = ipsec_po_sa_ctl_set(ipsec, crypto_xform, ctl);
 427         if (ret)
 428                 return ret;
 429
 430         auth_xform = crypto_xform;
 431         cipher_xform = crypto_xform->next;
 432
 433         cipher_key_len = 0;
 434         auth_key_len = 0;
 435
 436         if (crypto_xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) {
 437                 if (crypto_xform->aead.algo == RTE_CRYPTO_AEAD_AES_GCM)
 438                         memcpy(sa->iv.gcm.nonce, &ipsec->salt, 4);
 439                 cipher_key = crypto_xform->aead.key.data;
 440                 cipher_key_len = crypto_xform->aead.key.length;
 441
 442                 lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
 443                                             aes_gcm.hmac_key[0]) >> 3;
 444                 RTE_ASSERT(lp->ctx_len == OTX2_IPSEC_PO_AES_GCM_INB_CTX_LEN);
 445         } else {
 446                 cipher_key = cipher_xform->cipher.key.data;
 447                 cipher_key_len = cipher_xform->cipher.key.length;
 448                 auth_key = auth_xform->auth.key.data;
 449                 auth_key_len = auth_xform->auth.key.length;
 450
 451                 if (auth_xform->auth.algo == RTE_CRYPTO_AUTH_SHA1_HMAC) {
 452                         memcpy(sa->aes_gcm.hmac_key, auth_key, auth_key_len);
 453                         lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
 454                                                     aes_gcm.selector) >> 3;
 455                 } else if (auth_xform->auth.algo ==
 456                                 RTE_CRYPTO_AUTH_SHA256_HMAC) {
 457                         memcpy(sa->sha2.hmac_key, auth_key, auth_key_len);
 458                         lp->ctx_len = offsetof(struct otx2_ipsec_po_in_sa,
 459                                                     sha2.selector) >> 3;
 460                 }
 461         }
 462
 463         if (cipher_key_len != 0)
 464                 memcpy(sa->cipher_key, cipher_key, cipher_key_len);
 465         else
 466                 return -EINVAL;
 467
 468         inst.u64[7] = 0;
 469         inst.egrp = OTX2_CPT_EGRP_SE;
 470         inst.cptr = rte_mempool_virt2iova(sa);
 471
 472         lp->cpt_inst_w7 = inst.u64[7];
 473         lp->ucmd_opcode = (lp->ctx_len << 8) |
 474                                 (OTX2_IPSEC_PO_PROCESS_IPSEC_INB);
 475         lp->ucmd_param1 = 0;
 476
 477         /* Set IKEv2 bit */
 478         lp->ucmd_param2 = BIT(12);
 479
 480         set_session_misc_attributes(lp, crypto_xform,
 481                                     auth_xform, cipher_xform);
 482
 483         if (sa->replay_win_sz) {
 484                 if (sa->replay_win_sz > OTX2_IPSEC_MAX_REPLAY_WIN_SZ) {
 485                         otx2_err("Replay window size is not supported");
 486                         return -ENOTSUP;
 487                 }
 488                 sa->replay = rte_zmalloc(NULL, sizeof(struct otx2_ipsec_replay),
 489                                 0);
 490                 if (sa->replay == NULL)
 491                         return -ENOMEM;
 492
 493                 /* Set window bottom to 1, base and top to size of window */
 494                 sa->replay->winb = 1;
 495                 sa->replay->wint = sa->replay_win_sz;
 496                 sa->replay->base = sa->replay_win_sz;
 497                 sa->esn_low = 0;
 498                 sa->esn_hi = 0;
 499         }
 500
 501         return otx2_cpt_enq_sa_write(lp, crypto_dev->data->queue_pairs[0],
 502                                      OTX2_IPSEC_PO_WRITE_IPSEC_INB);
 503 }
 504
 505 static int
 506 crypto_sec_ipsec_session_create(struct rte_cryptodev *crypto_dev,
 507                                 struct rte_security_ipsec_xform *ipsec,
 508                                 struct rte_crypto_sym_xform *crypto_xform,
 509                                 struct rte_security_session *sess)
 510 {
 511         int ret;
 512
 513         if (crypto_dev->data->queue_pairs[0] == NULL) {
 514                 otx2_err("Setup cpt queue pair before creating sec session");
 515                 return -EPERM;
 516         }
 517
 518         ret = ipsec_po_xform_verify(ipsec, crypto_xform);
 519         if (ret)
 520                 return ret;
 521
 522         if (ipsec->direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS)
 523                 return crypto_sec_ipsec_inb_session_create(crypto_dev, ipsec,
 524                                                            crypto_xform, sess);
 525         else
 526                 return crypto_sec_ipsec_outb_session_create(crypto_dev, ipsec,
 527                                                             crypto_xform, sess);
 528 }
 529
 530 static int
 531 otx2_crypto_sec_session_create(void *device,
 532                                struct rte_security_session_conf *conf,
 533                                struct rte_security_session *sess,
 534                                struct rte_mempool *mempool)
 535 {
 536         struct otx2_sec_session *priv;
 537         int ret;
 538
 539         if (conf->action_type != RTE_SECURITY_ACTION_TYPE_LOOKASIDE_PROTOCOL)
 540                 return -ENOTSUP;
 541
 542         if (rte_security_dynfield_register() < 0)
 543                 return -rte_errno;
 544
 545         if (rte_mempool_get(mempool, (void **)&priv)) {
 546                 otx2_err("Could not allocate security session private data");
 547                 return -ENOMEM;
 548         }
 549
 550         set_sec_session_private_data(sess, priv);
 551
 552         priv->userdata = conf->userdata;
 553
 554         if (conf->protocol == RTE_SECURITY_PROTOCOL_IPSEC)
 555                 ret = crypto_sec_ipsec_session_create(device, &conf->ipsec,
 556                                                       conf->crypto_xform,
 557                                                       sess);
 558         else
 559                 ret = -ENOTSUP;
 560
 561         if (ret)
 562                 goto mempool_put;
 563
 564         return 0;
 565
 566 mempool_put:
 567         rte_mempool_put(mempool, priv);
 568         set_sec_session_private_data(sess, NULL);
 569         return ret;
 570 }
 571
 572 static int
 573 otx2_crypto_sec_session_destroy(void *device __rte_unused,
 574                                 struct rte_security_session *sess)
 575 {
 576         struct otx2_sec_session *priv;
 577         struct rte_mempool *sess_mp;
 578
 579         priv = get_sec_session_private_data(sess);
 580
 581         if (priv == NULL)
 582                 return 0;
 583
 584         sess_mp = rte_mempool_from_obj(priv);
 585
 586         memset(priv, 0, sizeof(*priv));
 587
 588         set_sec_session_private_data(sess, NULL);
 589         rte_mempool_put(sess_mp, priv);
 590
 591         return 0;
 592 }
 593
 594 static unsigned int
 595 otx2_crypto_sec_session_get_size(void *device __rte_unused)
 596 {
 597         return sizeof(struct otx2_sec_session);
 598 }
 599
 600 static int
 601 otx2_crypto_sec_set_pkt_mdata(void *device __rte_unused,
 602                               struct rte_security_session *session,
 603                               struct rte_mbuf *m, void *params __rte_unused)
 604 {
 605         /* Set security session as the pkt metadata */
 606         *rte_security_dynfield(m) = (rte_security_dynfield_t)session;
 607
 608         return 0;
 609 }
 610
 611 static int
 612 otx2_crypto_sec_get_userdata(void *device __rte_unused, uint64_t md,
 613                              void **userdata)
 614 {
 615         /* Retrieve userdata  */
 616         *userdata = (void *)md;
 617
 618         return 0;
 619 }
 620
 621 static struct rte_security_ops otx2_crypto_sec_ops = {
 622         .session_create         = otx2_crypto_sec_session_create,
 623         .session_destroy        = otx2_crypto_sec_session_destroy,
 624         .session_get_size       = otx2_crypto_sec_session_get_size,
 625         .set_pkt_metadata       = otx2_crypto_sec_set_pkt_mdata,
 626         .get_userdata           = otx2_crypto_sec_get_userdata,
 627         .capabilities_get       = otx2_crypto_sec_capabilities_get
 628 };
 629
 630 int
 631 otx2_crypto_sec_ctx_create(struct rte_cryptodev *cdev)
 632 {
 633         struct rte_security_ctx *ctx;
 634
 635         ctx = rte_malloc("otx2_cpt_dev_sec_ctx",
 636                          sizeof(struct rte_security_ctx), 0);
 637
 638         if (ctx == NULL)
 639                 return -ENOMEM;
 640
 641         /* Populate ctx */
 642         ctx->device = cdev;
 643         ctx->ops = &otx2_crypto_sec_ops;
 644         ctx->sess_cnt = 0;
 645
 646         cdev->security_ctx = ctx;
 647
 648         return 0;
 649 }
 650
 651 void
 652 otx2_crypto_sec_ctx_destroy(struct rte_cryptodev *cdev)
 653 {
 654         rte_free(cdev->security_ctx);
 655 }