1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) Intel Corporation. 3 * All rights reserved. 4 */ 5 6 #include "vbdev_passthru.h" 7 #include "spdk/rpc.h" 8 #include "spdk/util.h" 9 #include "spdk/string.h" 10 #include "spdk/log.h" 11 12 /* Structure to hold the parameters for this RPC method. */ 13 struct rpc_bdev_passthru_create { 14 char *base_bdev_name; 15 char *name; 16 }; 17 18 /* Free the allocated memory resource after the RPC handling. */ 19 static void 20 free_rpc_bdev_passthru_create(struct rpc_bdev_passthru_create *r) 21 { 22 free(r->base_bdev_name); 23 free(r->name); 24 } 25 26 /* Structure to decode the input parameters for this RPC method. */ 27 static const struct spdk_json_object_decoder rpc_bdev_passthru_create_decoders[] = { 28 {"base_bdev_name", offsetof(struct rpc_bdev_passthru_create, base_bdev_name), spdk_json_decode_string}, 29 {"name", offsetof(struct rpc_bdev_passthru_create, name), spdk_json_decode_string}, 30 }; 31 32 /* Decode the parameters for this RPC method and properly construct the passthru 33 * device. Error status returned in the failed cases. 34 */ 35 static void 36 rpc_bdev_passthru_create(struct spdk_jsonrpc_request *request, 37 const struct spdk_json_val *params) 38 { 39 struct rpc_bdev_passthru_create req = {NULL}; 40 struct spdk_json_write_ctx *w; 41 int rc; 42 43 if (spdk_json_decode_object(params, rpc_bdev_passthru_create_decoders, 44 SPDK_COUNTOF(rpc_bdev_passthru_create_decoders), 45 &req)) { 46 SPDK_DEBUGLOG(vbdev_passthru, "spdk_json_decode_object failed\n"); 47 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 48 "spdk_json_decode_object failed"); 49 goto cleanup; 50 } 51 52 rc = bdev_passthru_create_disk(req.base_bdev_name, req.name); 53 if (rc != 0) { 54 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc)); 55 goto cleanup; 56 } 57 58 w = spdk_jsonrpc_begin_result(request); 59 spdk_json_write_string(w, req.name); 60 spdk_jsonrpc_end_result(request, w); 61 62 cleanup: 63 free_rpc_bdev_passthru_create(&req); 64 } 65 SPDK_RPC_REGISTER("bdev_passthru_create", rpc_bdev_passthru_create, SPDK_RPC_RUNTIME) 66 67 struct rpc_bdev_passthru_delete { 68 char *name; 69 }; 70 71 static void 72 free_rpc_bdev_passthru_delete(struct rpc_bdev_passthru_delete *req) 73 { 74 free(req->name); 75 } 76 77 static const struct spdk_json_object_decoder rpc_bdev_passthru_delete_decoders[] = { 78 {"name", offsetof(struct rpc_bdev_passthru_delete, name), spdk_json_decode_string}, 79 }; 80 81 static void 82 rpc_bdev_passthru_delete_cb(void *cb_arg, int bdeverrno) 83 { 84 struct spdk_jsonrpc_request *request = cb_arg; 85 86 if (bdeverrno == 0) { 87 spdk_jsonrpc_send_bool_response(request, true); 88 } else { 89 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno)); 90 } 91 } 92 93 static void 94 rpc_bdev_passthru_delete(struct spdk_jsonrpc_request *request, 95 const struct spdk_json_val *params) 96 { 97 struct rpc_bdev_passthru_delete req = {NULL}; 98 99 if (spdk_json_decode_object(params, rpc_bdev_passthru_delete_decoders, 100 SPDK_COUNTOF(rpc_bdev_passthru_delete_decoders), 101 &req)) { 102 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR, 103 "spdk_json_decode_object failed"); 104 goto cleanup; 105 } 106 107 bdev_passthru_delete_disk(req.name, rpc_bdev_passthru_delete_cb, request); 108 109 cleanup: 110 free_rpc_bdev_passthru_delete(&req); 111 } 112 SPDK_RPC_REGISTER("bdev_passthru_delete", rpc_bdev_passthru_delete, SPDK_RPC_RUNTIME) 113