lib/librte_ipsec/ses.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 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                 if (ss->crypto.ses == NULL)
  16                         return -EINVAL;
  17         } else {
  18                 if (ss->security.ses == NULL)
  19                         return -EINVAL;
  20                 if ((ss->type == RTE_SECURITY_ACTION_TYPE_INLINE_CRYPTO ||
  21                                 ss->type ==
  22                                 RTE_SECURITY_ACTION_TYPE_INLINE_PROTOCOL) &&
  23                                 ss->security.ctx == NULL)
  24                         return -EINVAL;
  25         }
  26
  27         return 0;
  28 }
  29
  30 int __rte_experimental
  31 rte_ipsec_session_prepare(struct rte_ipsec_session *ss)
  32 {
  33         int32_t rc;
  34         struct rte_ipsec_sa_pkt_func fp;
  35
  36         rc = session_check(ss);
  37         if (rc != 0)
  38                 return rc;
  39
  40         rc = ipsec_sa_pkt_func_select(ss, ss->sa, &fp);
  41         if (rc != 0)
  42                 return rc;
  43
  44         ss->pkt_func = fp;
  45
  46         if (ss->type == RTE_SECURITY_ACTION_TYPE_NONE)
  47                 ss->crypto.ses->opaque_data = (uintptr_t)ss;
  48         else
  49                 ss->security.ses->opaque_data = (uintptr_t)ss;
  50
  51         return 0;
  52 }