lib/librte_security/rte_security.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2017 NXP.
   5  *   Copyright(c) 2017 Intel Corporation. All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of NXP nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <rte_malloc.h>
  35 #include <rte_dev.h>
  36
  37 #include "rte_security.h"
  38 #include "rte_security_driver.h"
  39
  40 struct rte_security_session *
  41 rte_security_session_create(struct rte_security_ctx *instance,
  42                             struct rte_security_session_conf *conf,
  43                             struct rte_mempool *mp)
  44 {
  45         struct rte_security_session *sess = NULL;
  46
  47         if (conf == NULL)
  48                 return NULL;
  49
  50         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->session_create, NULL);
  51
  52         if (rte_mempool_get(mp, (void **)&sess))
  53                 return NULL;
  54
  55         if (instance->ops->session_create(instance->device, conf, sess, mp)) {
  56                 rte_mempool_put(mp, (void *)sess);
  57                 return NULL;
  58         }
  59         instance->sess_cnt++;
  60
  61         return sess;
  62 }
  63
  64 int
  65 rte_security_session_update(struct rte_security_ctx *instance,
  66                             struct rte_security_session *sess,
  67                             struct rte_security_session_conf *conf)
  68 {
  69         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->session_update, -ENOTSUP);
  70         return instance->ops->session_update(instance->device, sess, conf);
  71 }
  72
  73 int
  74 rte_security_session_stats_get(struct rte_security_ctx *instance,
  75                                struct rte_security_session *sess,
  76                                struct rte_security_stats *stats)
  77 {
  78         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->session_stats_get, -ENOTSUP);
  79         return instance->ops->session_stats_get(instance->device, sess, stats);
  80 }
  81
  82 int
  83 rte_security_session_destroy(struct rte_security_ctx *instance,
  84                              struct rte_security_session *sess)
  85 {
  86         int ret;
  87
  88         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->session_destroy, -ENOTSUP);
  89
  90         if (instance->sess_cnt)
  91                 instance->sess_cnt--;
  92
  93         ret = instance->ops->session_destroy(instance->device, sess);
  94         if (!ret)
  95                 rte_mempool_put(rte_mempool_from_obj(sess), (void *)sess);
  96
  97         return ret;
  98 }
  99
 100 int
 101 rte_security_set_pkt_metadata(struct rte_security_ctx *instance,
 102                               struct rte_security_session *sess,
 103                               struct rte_mbuf *m, void *params)
 104 {
 105         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->set_pkt_metadata, -ENOTSUP);
 106         return instance->ops->set_pkt_metadata(instance->device,
 107                                                sess, m, params);
 108 }
 109
 110 const struct rte_security_capability *
 111 rte_security_capabilities_get(struct rte_security_ctx *instance)
 112 {
 113         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->capabilities_get, NULL);
 114         return instance->ops->capabilities_get(instance->device);
 115 }
 116
 117 const struct rte_security_capability *
 118 rte_security_capability_get(struct rte_security_ctx *instance,
 119                             struct rte_security_capability_idx *idx)
 120 {
 121         const struct rte_security_capability *capabilities;
 122         const struct rte_security_capability *capability;
 123         uint16_t i = 0;
 124
 125         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->capabilities_get, NULL);
 126         capabilities = instance->ops->capabilities_get(instance->device);
 127
 128         if (capabilities == NULL)
 129                 return NULL;
 130
 131         while ((capability = &capabilities[i++])->action
 132                         != RTE_SECURITY_ACTION_TYPE_NONE) {
 133                 if (capability->action  == idx->action &&
 134                                 capability->protocol == idx->protocol) {
 135                         if (idx->protocol == RTE_SECURITY_PROTOCOL_IPSEC) {
 136                                 if (capability->ipsec.proto ==
 137                                                 idx->ipsec.proto &&
 138                                         capability->ipsec.mode ==
 139                                                         idx->ipsec.mode &&
 140                                         capability->ipsec.direction ==
 141                                                         idx->ipsec.direction)
 142                                         return capability;
 143                         }
 144                 }
 145         }
 146
 147         return NULL;
 148 }