1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright (C) 2018 Intel Corporation.
3 * All rights reserved.
4 */
5
6 #include "bdev_iscsi.h"
7 #include "spdk/rpc.h"
8 #include "spdk/util.h"
9 #include "spdk/string.h"
10
11 #include "spdk/log.h"
12
13 static const struct spdk_json_object_decoder rpc_bdev_iscsi_options_decoders[] = {
14 {"timeout_sec", offsetof(struct spdk_bdev_iscsi_opts, timeout_sec), spdk_json_decode_uint64, true},
15 };
16
17 static void
rpc_bdev_iscsi_set_options(struct spdk_jsonrpc_request * request,const struct spdk_json_val * params)18 rpc_bdev_iscsi_set_options(struct spdk_jsonrpc_request *request,
19 const struct spdk_json_val *params)
20 {
21 struct spdk_bdev_iscsi_opts opts;
22 int rc;
23
24 bdev_iscsi_get_opts(&opts);
25 if (params && spdk_json_decode_object(params, rpc_bdev_iscsi_options_decoders,
26 SPDK_COUNTOF(rpc_bdev_iscsi_options_decoders),
27 &opts)) {
28 SPDK_ERRLOG("spdk_json_decode_object failed\n");
29 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
30 "spdk_json_decode_object failed");
31 return;
32 }
33
34 rc = bdev_iscsi_set_opts(&opts);
35 if (rc == -EPERM) {
36 spdk_jsonrpc_send_error_response(request, -EPERM,
37 "RPC not permitted with iscsi already connected");
38 } else if (rc) {
39 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
40 } else {
41 spdk_jsonrpc_send_bool_response(request, true);
42 }
43
44 return;
45 }
46 SPDK_RPC_REGISTER("bdev_iscsi_set_options", rpc_bdev_iscsi_set_options,
47 SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)
48
49 struct rpc_bdev_iscsi_create {
50 char *name;
51 char *initiator_iqn;
52 char *url;
53 };
54
55 static const struct spdk_json_object_decoder rpc_bdev_iscsi_create_decoders[] = {
56 {"name", offsetof(struct rpc_bdev_iscsi_create, name), spdk_json_decode_string},
57 {"initiator_iqn", offsetof(struct rpc_bdev_iscsi_create, initiator_iqn), spdk_json_decode_string},
58 {"url", offsetof(struct rpc_bdev_iscsi_create, url), spdk_json_decode_string},
59 };
60
61 static void
free_rpc_bdev_iscsi_create(struct rpc_bdev_iscsi_create * req)62 free_rpc_bdev_iscsi_create(struct rpc_bdev_iscsi_create *req)
63 {
64 free(req->name);
65 free(req->initiator_iqn);
66 free(req->url);
67 }
68
69 static void
bdev_iscsi_create_cb(void * cb_arg,struct spdk_bdev * bdev,int status)70 bdev_iscsi_create_cb(void *cb_arg, struct spdk_bdev *bdev, int status)
71 {
72 struct spdk_jsonrpc_request *request = cb_arg;
73 struct spdk_json_write_ctx *w;
74
75 if (status > 0) {
76 spdk_jsonrpc_send_error_response_fmt(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
77 "iSCSI error (%d).", status);
78 } else if (status < 0) {
79 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
80 spdk_strerror(-status));
81 } else {
82 w = spdk_jsonrpc_begin_result(request);
83 spdk_json_write_string(w, spdk_bdev_get_name(bdev));
84 spdk_jsonrpc_end_result(request, w);
85 }
86 }
87
88 static void
rpc_bdev_iscsi_create(struct spdk_jsonrpc_request * request,const struct spdk_json_val * params)89 rpc_bdev_iscsi_create(struct spdk_jsonrpc_request *request,
90 const struct spdk_json_val *params)
91 {
92 struct rpc_bdev_iscsi_create req = {};
93 int rc = 0;
94
95 if (spdk_json_decode_object(params, rpc_bdev_iscsi_create_decoders,
96 SPDK_COUNTOF(rpc_bdev_iscsi_create_decoders),
97 &req)) {
98 SPDK_ERRLOG("spdk_json_decode_object failed\n");
99 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
100 "spdk_json_decode_object failed");
101 goto cleanup;
102 }
103
104 rc = create_iscsi_disk(req.name, req.url, req.initiator_iqn, bdev_iscsi_create_cb, request);
105 if (rc) {
106 spdk_jsonrpc_send_error_response(request, rc, spdk_strerror(-rc));
107 }
108
109 cleanup:
110 free_rpc_bdev_iscsi_create(&req);
111 }
112 SPDK_RPC_REGISTER("bdev_iscsi_create", rpc_bdev_iscsi_create, SPDK_RPC_RUNTIME)
113
114 struct rpc_delete_iscsi {
115 char *name;
116 };
117
118 static void
free_rpc_delete_iscsi(struct rpc_delete_iscsi * r)119 free_rpc_delete_iscsi(struct rpc_delete_iscsi *r)
120 {
121 free(r->name);
122 }
123
124 static const struct spdk_json_object_decoder rpc_delete_iscsi_decoders[] = {
125 {"name", offsetof(struct rpc_delete_iscsi, name), spdk_json_decode_string},
126 };
127
128 static void
rpc_bdev_iscsi_delete_cb(void * cb_arg,int bdeverrno)129 rpc_bdev_iscsi_delete_cb(void *cb_arg, int bdeverrno)
130 {
131 struct spdk_jsonrpc_request *request = cb_arg;
132
133 if (bdeverrno == 0) {
134 spdk_jsonrpc_send_bool_response(request, true);
135 } else {
136 spdk_jsonrpc_send_error_response(request, bdeverrno, spdk_strerror(-bdeverrno));
137 }
138 }
139
140 static void
rpc_bdev_iscsi_delete(struct spdk_jsonrpc_request * request,const struct spdk_json_val * params)141 rpc_bdev_iscsi_delete(struct spdk_jsonrpc_request *request,
142 const struct spdk_json_val *params)
143 {
144 struct rpc_delete_iscsi req = {NULL};
145
146 if (spdk_json_decode_object(params, rpc_delete_iscsi_decoders,
147 SPDK_COUNTOF(rpc_delete_iscsi_decoders),
148 &req)) {
149 spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INTERNAL_ERROR,
150 "spdk_json_decode_object failed");
151 goto cleanup;
152 }
153
154 delete_iscsi_disk(req.name, rpc_bdev_iscsi_delete_cb, request);
155
156 cleanup:
157 free_rpc_delete_iscsi(&req);
158 }
159 SPDK_RPC_REGISTER("bdev_iscsi_delete", rpc_bdev_iscsi_delete, SPDK_RPC_RUNTIME)
160