ceph/src/spdk/lib/bdev/crypto/vbdev_crypto_rpc.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) Intel Corporation.
   5  *   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 Intel Corporation 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 "vbdev_crypto.h"
  35
  36 /* Structure to hold the parameters for this RPC method. */
  37 struct rpc_construct_crypto {
  38         char *base_bdev_name;
  39         char *name;
  40         char *crypto_pmd;
  41         char *key;
  42 };
  43
  44 /* Free the allocated memory resource after the RPC handling. */
  45 static void
  46 free_rpc_construct_crypto(struct rpc_construct_crypto *r)
  47 {
  48         free(r->base_bdev_name);
  49         free(r->name);
  50         free(r->crypto_pmd);
  51         free(r->key);
  52 }
  53
  54 /* Structure to decode the input parameters for this RPC method. */
  55 static const struct spdk_json_object_decoder rpc_construct_crypto_decoders[] = {
  56         {"base_bdev_name", offsetof(struct rpc_construct_crypto, base_bdev_name), spdk_json_decode_string},
  57         {"name", offsetof(struct rpc_construct_crypto, name), spdk_json_decode_string},
  58         {"crypto_pmd", offsetof(struct rpc_construct_crypto, crypto_pmd), spdk_json_decode_string},
  59         {"key", offsetof(struct rpc_construct_crypto, key), spdk_json_decode_string},
  60 };
  61
  62 /* Decode the parameters for this RPC method and properly construct the crypto
  63  * device. Error status returned in the failed cases.
  64  */
  65 static void
  66 spdk_rpc_construct_crypto_bdev(struct spdk_jsonrpc_request *request,
  67                                const struct spdk_json_val *params)
  68 {
  69         struct rpc_construct_crypto req = {NULL};
  70         struct spdk_json_write_ctx *w;
  71         int rc;
  72
  73         if (spdk_json_decode_object(params, rpc_construct_crypto_decoders,
  74                                     SPDK_COUNTOF(rpc_construct_crypto_decoders),
  75                                     &req)) {
  76                 SPDK_DEBUGLOG(SPDK_LOG_VBDEV_crypto, "spdk_json_decode_object failed\n");
  77                 goto invalid;
  78         }
  79
  80         rc = create_crypto_disk(req.base_bdev_name, req.name,
  81                                 req.crypto_pmd, req.key);
  82         if (rc != 0) {
  83                 goto invalid;
  84         }
  85
  86         w = spdk_jsonrpc_begin_result(request);
  87         if (w == NULL) {
  88                 free_rpc_construct_crypto(&req);
  89                 return;
  90         }
  91
  92         spdk_json_write_string(w, req.name);
  93         spdk_jsonrpc_end_result(request, w);
  94         free_rpc_construct_crypto(&req);
  95         return;
  96
  97 invalid:
  98         free_rpc_construct_crypto(&req);
  99         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, "Invalid parameters");
 100 }
 101 SPDK_RPC_REGISTER("construct_crypto_bdev", spdk_rpc_construct_crypto_bdev, SPDK_RPC_RUNTIME)
 102
 103 struct rpc_delete_crypto {
 104         char *name;
 105 };
 106
 107 static void
 108 free_rpc_delete_crypto(struct rpc_delete_crypto *req)
 109 {
 110         free(req->name);
 111 }
 112
 113 static const struct spdk_json_object_decoder rpc_delete_crypto_decoders[] = {
 114         {"name", offsetof(struct rpc_delete_crypto, name), spdk_json_decode_string},
 115 };
 116
 117 static void
 118 _spdk_rpc_delete_crypto_bdev_cb(void *cb_arg, int bdeverrno)
 119 {
 120         struct spdk_jsonrpc_request *request = cb_arg;
 121         struct spdk_json_write_ctx *w;
 122
 123         w = spdk_jsonrpc_begin_result(request);
 124         if (w == NULL) {
 125                 return;
 126         }
 127
 128         spdk_json_write_bool(w, bdeverrno == 0);
 129         spdk_jsonrpc_end_result(request, w);
 130 }
 131
 132 static void
 133 spdk_rpc_delete_crypto_bdev(struct spdk_jsonrpc_request *request,
 134                             const struct spdk_json_val *params)
 135 {
 136         struct rpc_delete_crypto req = {NULL};
 137         struct spdk_bdev *bdev;
 138         int rc;
 139
 140         if (spdk_json_decode_object(params, rpc_delete_crypto_decoders,
 141                                     SPDK_COUNTOF(rpc_delete_crypto_decoders),
 142                                     &req)) {
 143                 rc = -EINVAL;
 144                 goto invalid;
 145         }
 146
 147         bdev = spdk_bdev_get_by_name(req.name);
 148         if (bdev == NULL) {
 149                 rc = -ENODEV;
 150                 goto invalid;
 151         }
 152
 153         delete_crypto_disk(bdev, _spdk_rpc_delete_crypto_bdev_cb, request);
 154
 155         free_rpc_delete_crypto(&req);
 156
 157         return;
 158
 159 invalid:
 160         free_rpc_delete_crypto(&req);
 161         spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS, spdk_strerror(-rc));
 162 }
 163 SPDK_RPC_REGISTER("delete_crypto_bdev", spdk_rpc_delete_crypto_bdev, SPDK_RPC_RUNTIME)