lib/librte_ipsec/ses.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2020 Intel Corporation
   3  */
   4
   5 #include <rte_ipsec.h>
   6 #include "sa.h"
   7
   8 static int
   9 session_check(struct rte_ipsec_session *ss)
  10 {
  11         if (ss == NULL || ss->sa == NULL)
  12                 return -EINVAL;
  13
  14         if (ss->type == RTE_SECURITY_ACTION_TYPE_NONE ||
  15                 ss->type == RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO) {
  16                 if (ss->crypto.ses == NULL)
  17                         return -EINVAL;
  18         } else {
  19                 if (ss->security.ses == NULL)
  20                         return -EINVAL;
  21                 if ((ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
  22                                 ss->type ==
  23                                 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) &&
  24                                 ss->security.ctx == NULL)
  25                         return -EINVAL;
  26         }
  27
  28         return 0;
  29 }
  30
  31 int
  32 rte_ipsec_session_prepare(struct rte_ipsec_session *ss)
  33 {
  34         int32_t rc;
  35         struct rte_ipsec_sa_pkt_func fp;
  36
  37         rc = session_check(ss);
  38         if (rc != 0)
  39                 return rc;
  40
  41         rc = ipsec_sa_pkt_func_select(ss, ss->sa, &fp);
  42         if (rc != 0)
  43                 return rc;
  44
  45         ss->pkt_func = fp;
  46
  47         if (ss->type == RTE_SECURITY_ACTION_TYPE_NONE)
  48                 ss->crypto.ses->opaque_data = (uintptr_t)ss;
  49         else
  50                 ss->security.ses->opaque_data = (uintptr_t)ss;
  51
  52         return 0;
  53 }