lib/security/rte_security.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2017 NXP.
   3  * Copyright(c) 2017 Intel Corporation.
   4  * Copyright (c) 2020 Samsung Electronics Co., Ltd All Rights Reserved
   5  */
   6
   7 #include <rte_malloc.h>
   8 #include <rte_dev.h>
   9 #include "rte_compat.h"
  10 #include "rte_security.h"
  11 #include "rte_security_driver.h"
  12
  13 /* Macro to check for invalid pointers */
  14 #define RTE_PTR_OR_ERR_RET(ptr, retval) do {    \
  15         if ((ptr) == NULL)                      \
  16                 return retval;                  \
  17 } while (0)
  18
  19 /* Macro to check for invalid pointers chains */
  20 #define RTE_PTR_CHAIN3_OR_ERR_RET(p1, p2, p3, retval, last_retval) do { \
  21         RTE_PTR_OR_ERR_RET(p1, retval);                                 \
  22         RTE_PTR_OR_ERR_RET(p1->p2, retval);                             \
  23         RTE_PTR_OR_ERR_RET(p1->p2->p3, last_retval);                    \
  24 } while (0)
  25
  26 #define RTE_SECURITY_DYNFIELD_NAME "rte_security_dynfield_metadata"
  27 int rte_security_dynfield_offset = -1;
  28
  29 int
  30 rte_security_dynfield_register(void)
  31 {
  32         static const struct rte_mbuf_dynfield dynfield_desc = {
  33                 .name = RTE_SECURITY_DYNFIELD_NAME,
  34                 .size = sizeof(rte_security_dynfield_t),
  35                 .align = __alignof__(rte_security_dynfield_t),
  36         };
  37         rte_security_dynfield_offset =
  38                 rte_mbuf_dynfield_register(&dynfield_desc);
  39         return rte_security_dynfield_offset;
  40 }
  41
  42 struct rte_security_session *
  43 rte_security_session_create(struct rte_security_ctx *instance,
  44                             struct rte_security_session_conf *conf,
  45                             struct rte_mempool *mp,
  46                             struct rte_mempool *priv_mp)
  47 {
  48         struct rte_security_session *sess = NULL;
  49
  50         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, session_create, NULL, NULL);
  51         RTE_PTR_OR_ERR_RET(conf, NULL);
  52         RTE_PTR_OR_ERR_RET(mp, NULL);
  53         RTE_PTR_OR_ERR_RET(priv_mp, NULL);
  54
  55         if (rte_mempool_get(mp, (void **)&sess))
  56                 return NULL;
  57
  58         if (instance->ops->session_create(instance->device, conf,
  59                                 sess, priv_mp)) {
  60                 rte_mempool_put(mp, (void *)sess);
  61                 return NULL;
  62         }
  63         instance->sess_cnt++;
  64
  65         return sess;
  66 }
  67
  68 int
  69 rte_security_session_update(struct rte_security_ctx *instance,
  70                             struct rte_security_session *sess,
  71                             struct rte_security_session_conf *conf)
  72 {
  73         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, session_update, -EINVAL,
  74                         -ENOTSUP);
  75         RTE_PTR_OR_ERR_RET(sess, -EINVAL);
  76         RTE_PTR_OR_ERR_RET(conf, -EINVAL);
  77
  78         return instance->ops->session_update(instance->device, sess, conf);
  79 }
  80
  81 unsigned int
  82 rte_security_session_get_size(struct rte_security_ctx *instance)
  83 {
  84         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, session_get_size, 0, 0);
  85
  86         return instance->ops->session_get_size(instance->device);
  87 }
  88
  89 int
  90 rte_security_session_stats_get(struct rte_security_ctx *instance,
  91                                struct rte_security_session *sess,
  92                                struct rte_security_stats *stats)
  93 {
  94         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, session_stats_get, -EINVAL,
  95                         -ENOTSUP);
  96         /* Parameter sess can be NULL in case of getting global statistics. */
  97         RTE_PTR_OR_ERR_RET(stats, -EINVAL);
  98
  99         return instance->ops->session_stats_get(instance->device, sess, stats);
 100 }
 101
 102 int
 103 rte_security_session_destroy(struct rte_security_ctx *instance,
 104                              struct rte_security_session *sess)
 105 {
 106         int ret;
 107
 108         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, session_destroy, -EINVAL,
 109                         -ENOTSUP);
 110         RTE_PTR_OR_ERR_RET(sess, -EINVAL);
 111
 112         ret = instance->ops->session_destroy(instance->device, sess);
 113         if (ret != 0)
 114                 return ret;
 115
 116         rte_mempool_put(rte_mempool_from_obj(sess), (void *)sess);
 117
 118         if (instance->sess_cnt)
 119                 instance->sess_cnt--;
 120
 121         return 0;
 122 }
 123
 124 int
 125 rte_security_set_pkt_metadata(struct rte_security_ctx *instance,
 126                               struct rte_security_session *sess,
 127                               struct rte_mbuf *m, void *params)
 128 {
 129 #ifdef RTE_DEBUG
 130         RTE_PTR_OR_ERR_RET(sess, -EINVAL);
 131         RTE_PTR_OR_ERR_RET(instance, -EINVAL);
 132         RTE_PTR_OR_ERR_RET(instance->ops, -EINVAL);
 133 #endif
 134         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->set_pkt_metadata, -ENOTSUP);
 135         return instance->ops->set_pkt_metadata(instance->device,
 136                                                sess, m, params);
 137 }
 138
 139 void *
 140 rte_security_get_userdata(struct rte_security_ctx *instance, uint64_t md)
 141 {
 142         void *userdata = NULL;
 143
 144 #ifdef RTE_DEBUG
 145         RTE_PTR_OR_ERR_RET(instance, NULL);
 146         RTE_PTR_OR_ERR_RET(instance->ops, NULL);
 147 #endif
 148         RTE_FUNC_PTR_OR_ERR_RET(*instance->ops->get_userdata, NULL);
 149         if (instance->ops->get_userdata(instance->device, md, &userdata))
 150                 return NULL;
 151
 152         return userdata;
 153 }
 154
 155 const struct rte_security_capability *
 156 rte_security_capabilities_get(struct rte_security_ctx *instance)
 157 {
 158         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, capabilities_get, NULL, NULL);
 159
 160         return instance->ops->capabilities_get(instance->device);
 161 }
 162
 163 const struct rte_security_capability *
 164 rte_security_capability_get(struct rte_security_ctx *instance,
 165                             struct rte_security_capability_idx *idx)
 166 {
 167         const struct rte_security_capability *capabilities;
 168         const struct rte_security_capability *capability;
 169         uint16_t i = 0;
 170
 171         RTE_PTR_CHAIN3_OR_ERR_RET(instance, ops, capabilities_get, NULL, NULL);
 172         RTE_PTR_OR_ERR_RET(idx, NULL);
 173
 174         capabilities = instance->ops->capabilities_get(instance->device);
 175
 176         if (capabilities == NULL)
 177                 return NULL;
 178
 179         while ((capability = &capabilities[i++])->action
 180                         != RTE_SECURITY_ACTION_TYPE_NONE) {
 181                 if (capability->action == idx->action &&
 182                                 capability->protocol == idx->protocol) {
 183                         if (idx->protocol == RTE_SECURITY_PROTOCOL_IPSEC) {
 184                                 if (capability->ipsec.proto ==
 185                                                 idx->ipsec.proto &&
 186                                         capability->ipsec.mode ==
 187                                                         idx->ipsec.mode &&
 188                                         capability->ipsec.direction ==
 189                                                         idx->ipsec.direction)
 190                                         return capability;
 191                         } else if (idx->protocol == RTE_SECURITY_PROTOCOL_PDCP) {
 192                                 if (capability->pdcp.domain ==
 193                                                         idx->pdcp.domain)
 194                                         return capability;
 195                         } else if (idx->protocol ==
 196                                                 RTE_SECURITY_PROTOCOL_DOCSIS) {
 197                                 if (capability->docsis.direction ==
 198                                                         idx->docsis.direction)
 199                                         return capability;
 200                         }
 201                 }
 202         }
 203
 204         return NULL;
 205 }