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 "bdev_malloc.h" 35 #include "spdk/rpc.h" 36 #include "spdk/util.h" 37 #include "spdk/uuid.h" 38 #include "spdk/string.h" 39 #include "spdk/log.h" 40 41 struct rpc_construct_malloc { 42 char *name; 43 char *uuid; 44 uint64_t num_blocks; 45 uint32_t block_size; 46 }; 47 48 static void 49 free_rpc_construct_malloc(struct rpc_construct_malloc *r) 50 { 51 free(r->name); 52 free(r->uuid); 53 } 54 55 static const struct spdk_json_object_decoder rpc_construct_malloc_decoders[] = { 56 {"name", offsetof(struct rpc_construct_malloc, name), spdk_json_decode_string, true}, 57 {"uuid", offsetof(struct rpc_construct_malloc, uuid), spdk_json_decode_string, true}, 58 {"num_blocks", offsetof(struct rpc_construct_malloc, num_blocks), spdk_json_decode_uint64}, 59 {"block_size", offsetof(struct rpc_construct_malloc, block_size), spdk_json_decode_uint32}, 60 }; 61 62 static void 63 rpc_bdev_malloc_create(struct spdk_jsonrpc_request *request, 64 const struct spdk_json_val *params) 65 { 66 struct rpc_construct_malloc req = {NULL}; 67 struct spdk_json_write_ctx *w; 68 struct spdk_uuid *uuid = NULL; 69 struct spdk_uuid decoded_uuid; 70 struct spdk_bdev *bdev; 71 int rc = 0; 72 73 if (spdk_json_decode_object(params, rpc_construct_malloc_decoders, 74 SPDK_COUNTOF(rpc_construct_malloc_decoders), 75 &req)) { 76 SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n"); 77 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 78 "spdk_json_decode_object failed"); 79 goto cleanup; 80 } 81 82 if (req.num_blocks == 0) { 83 spdk_jsonrpc_send_error_response(request, -EINVAL, 84 "Disk num_blocks must be greater than 0"); 85 goto cleanup; 86 } 87 88 if (req.uuid) { 89 if (spdk_uuid_parse(&decoded_uuid, req.uuid)) { 90 spdk_jsonrpc_send_error_response(request, -EINVAL, 91 "Failed to parse bdev UUID"); 92 goto cleanup; 93 } 94 uuid = &decoded_uuid; 95 } 96 97 rc = create_malloc_disk(&bdev, req.name, uuid, req.num_blocks, req.block_size); 98 if (rc) { 99 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); 100 goto cleanup; 101 } 102 103 free_rpc_construct_malloc(&req); 104 105 w = spdk_jsonrpc_begin_result(request); 106 spdk_json_write_string(w, spdk_bdev_get_name(bdev)); 107 spdk_jsonrpc_end_result(request, w); 108 return; 109 110 cleanup: 111 free_rpc_construct_malloc(&req); 112 } 113 SPDK_RPC_REGISTER("bdev_malloc_create", rpc_bdev_malloc_create, SPDK_RPC_RUNTIME) 114 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_malloc_create, construct_malloc_bdev) 115 116 struct rpc_delete_malloc { 117 char *name; 118 }; 119 120 static void 121 free_rpc_delete_malloc(struct rpc_delete_malloc *r) 122 { 123 free(r->name); 124 } 125 126 static const struct spdk_json_object_decoder rpc_delete_malloc_decoders[] = { 127 {"name", offsetof(struct rpc_delete_malloc, name), spdk_json_decode_string}, 128 }; 129 130 static void 131 rpc_bdev_malloc_delete_cb(void *cb_arg, int bdeverrno) 132 { 133 struct spdk_jsonrpc_request *request = cb_arg; 134 135 spdk_jsonrpc_send_bool_response(request, bdeverrno == 0); 136 } 137 138 static void 139 rpc_bdev_malloc_delete(struct spdk_jsonrpc_request *request, 140 const struct spdk_json_val *params) 141 { 142 struct rpc_delete_malloc req = {NULL}; 143 struct spdk_bdev *bdev; 144 145 if (spdk_json_decode_object(params, rpc_delete_malloc_decoders, 146 SPDK_COUNTOF(rpc_delete_malloc_decoders), 147 &req)) { 148 SPDK_DEBUGLOG(bdev_malloc, "spdk_json_decode_object failed\n"); 149 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 150 "spdk_json_decode_object failed"); 151 goto cleanup; 152 } 153 154 bdev = spdk_bdev_get_by_name(req.name); 155 if (bdev == NULL) { 156 SPDK_INFOLOG(bdev_malloc, "bdev '%s' does not exist\n", req.name); 157 spdk_jsonrpc_send_error_response(request, -ENODEV, spdk_strerror(ENODEV)); 158 goto cleanup; 159 } 160 161 delete_malloc_disk(bdev, rpc_bdev_malloc_delete_cb, request); 162 163 cleanup: 164 free_rpc_delete_malloc(&req); 165 } 166 SPDK_RPC_REGISTER("bdev_malloc_delete", rpc_bdev_malloc_delete, SPDK_RPC_RUNTIME) 167 SPDK_RPC_REGISTER_ALIAS_DEPRECATED(bdev_malloc_delete, delete_malloc_bdev) 168