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tipc: fix clang warning in tipc/node.c
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1/*
2 * node.c TIPC node functionality.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *
9 * Authors: Richard Alpe <richard.alpe@ericsson.com>
10 */
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <string.h>
15#include <errno.h>
16
17#include <linux/tipc_netlink.h>
18#include <linux/tipc.h>
19#include <linux/genetlink.h>
20#include <libmnl/libmnl.h>
21
22#include "cmdl.h"
23#include "msg.h"
24#include "misc.h"
25#include "node.h"
26
27static int node_list_cb(const struct nlmsghdr *nlh, void *data)
28{
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29 struct nlattr *info[TIPC_NLA_MAX + 1] = {};
30 struct nlattr *attrs[TIPC_NLA_NODE_MAX + 1] = {};
5947046d
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31 char str[33] = {};
32 uint32_t addr;
f043759d 33
8d05f33a 34 mnl_attr_parse(nlh, sizeof(struct genlmsghdr), parse_attrs, info);
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35 if (!info[TIPC_NLA_NODE])
36 return MNL_CB_ERROR;
37
38 mnl_attr_parse_nested(info[TIPC_NLA_NODE], parse_attrs, attrs);
39 if (!attrs[TIPC_NLA_NODE_ADDR])
40 return MNL_CB_ERROR;
41
42 addr = mnl_attr_get_u32(attrs[TIPC_NLA_NODE_ADDR]);
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43 hash2nodestr(addr, str);
44 printf("%-32s %08x ", str, addr);
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45 if (attrs[TIPC_NLA_NODE_UP])
46 printf("up\n");
47 else
48 printf("down\n");
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49 return MNL_CB_OK;
50}
51
52static int cmd_node_list(struct nlmsghdr *nlh, const struct cmd *cmd,
53 struct cmdl *cmdl, void *data)
54{
55 char buf[MNL_SOCKET_BUFFER_SIZE];
56
57 if (help_flag) {
58 fprintf(stderr, "Usage: %s node list\n", cmdl->argv[0]);
59 return -EINVAL;
60 }
61
62 if (!(nlh = msg_init(buf, TIPC_NL_NODE_GET))) {
63 fprintf(stderr, "error, message initialisation failed\n");
64 return -1;
65 }
5947046d 66 printf("Node Identity Hash State\n");
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67 return msg_dumpit(nlh, node_list_cb, NULL);
68}
69
70static int cmd_node_set_addr(struct nlmsghdr *nlh, const struct cmd *cmd,
71 struct cmdl *cmdl, void *data)
72{
73 char *str;
74 uint32_t addr;
75 struct nlattr *nest;
76 char buf[MNL_SOCKET_BUFFER_SIZE];
77
78 if (cmdl->argc != cmdl->optind + 1) {
79 fprintf(stderr, "Usage: %s node set address ADDRESS\n",
80 cmdl->argv[0]);
81 return -EINVAL;
82 }
83
84 str = shift_cmdl(cmdl);
85 addr = str2addr(str);
86 if (!addr)
87 return -1;
88
89 if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) {
90 fprintf(stderr, "error, message initialisation failed\n");
91 return -1;
92 }
93
94 nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
95 mnl_attr_put_u32(nlh, TIPC_NLA_NET_ADDR, addr);
96 mnl_attr_nest_end(nlh, nest);
97
98 return msg_doit(nlh, NULL, NULL);
99}
100
101static int cmd_node_get_addr(struct nlmsghdr *nlh, const struct cmd *cmd,
102 struct cmdl *cmdl, void *data)
103{
104 int sk;
105 socklen_t sz = sizeof(struct sockaddr_tipc);
106 struct sockaddr_tipc addr;
107
436270a4
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108 sk = socket(AF_TIPC, SOCK_RDM, 0);
109 if (sk < 0) {
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110 fprintf(stderr, "opening TIPC socket: %s\n", strerror(errno));
111 return -1;
112 }
113
114 if (getsockname(sk, (struct sockaddr *)&addr, &sz) < 0) {
115 fprintf(stderr, "getting TIPC socket address: %s\n",
116 strerror(errno));
117 close(sk);
118 return -1;
119 }
120 close(sk);
121
5947046d 122 printf("%08x\n", addr.addr.id.node);
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123 return 0;
124}
125
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126static int cmd_node_set_nodeid(struct nlmsghdr *nlh, const struct cmd *cmd,
127 struct cmdl *cmdl, void *data)
128{
129 char buf[MNL_SOCKET_BUFFER_SIZE];
130 uint8_t id[16] = {0,};
131 uint64_t *w0 = (uint64_t *) &id[0];
132 uint64_t *w1 = (uint64_t *) &id[8];
133 struct nlattr *nest;
134 char *str;
135
136 if (cmdl->argc != cmdl->optind + 1) {
137 fprintf(stderr, "Usage: %s node set nodeid NODE_ID\n",
138 cmdl->argv[0]);
139 return -EINVAL;
140 }
141
142 str = shift_cmdl(cmdl);
143 if (str2nodeid(str, id)) {
144 fprintf(stderr, "Invalid node identity\n");
145 return -EINVAL;
146 }
147
148 nlh = msg_init(buf, TIPC_NL_NET_SET);
149 if (!nlh) {
150 fprintf(stderr, "error, message initialisation failed\n");
151 return -1;
152 }
153 nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
154 mnl_attr_put_u64(nlh, TIPC_NLA_NET_NODEID, *w0);
155 mnl_attr_put_u64(nlh, TIPC_NLA_NET_NODEID_W1, *w1);
156 mnl_attr_nest_end(nlh, nest);
157 return msg_doit(nlh, NULL, NULL);
158}
159
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160static void cmd_node_set_key_help(struct cmdl *cmdl)
161{
162 fprintf(stderr,
163 "Usage: %s node set key KEY [algname ALGNAME] [nodeid NODEID]\n\n"
164 "PROPERTIES\n"
165 " KEY - Symmetric KEY & SALT as a normal or hex string\n"
166 " that consists of two parts:\n"
167 " [KEY: 16, 24 or 32 octets][SALT: 4 octets]\n\n"
168 " algname ALGNAME - Default: \"gcm(aes)\"\n\n"
169 " nodeid NODEID - Own or peer node identity to which the key will\n"
170 " be attached. If not present, the key is a cluster\n"
171 " key!\n\n"
172 "EXAMPLES\n"
173 " %s node set key this_is_a_key16_salt algname \"gcm(aes)\" nodeid node1\n"
174 " %s node set key 0x746869735F69735F615F6B657931365F73616C74 nodeid node2\n\n",
175 cmdl->argv[0], cmdl->argv[0], cmdl->argv[0]);
176}
177
178static int cmd_node_set_key(struct nlmsghdr *nlh, const struct cmd *cmd,
179 struct cmdl *cmdl, void *data)
180{
181 struct {
d5391e18
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182 union {
183 struct tipc_aead_key key;
184 char mem[TIPC_AEAD_KEY_SIZE_MAX];
185 };
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186 } input = {};
187 struct opt opts[] = {
188 { "algname", OPT_KEYVAL, NULL },
189 { "nodeid", OPT_KEYVAL, NULL },
190 { NULL }
191 };
192 struct nlattr *nest;
193 struct opt *opt_algname, *opt_nodeid;
194 char buf[MNL_SOCKET_BUFFER_SIZE];
195 uint8_t id[TIPC_NODEID_LEN] = {0,};
196 int keysize;
197 char *str;
198
199 if (help_flag) {
200 (cmd->help)(cmdl);
201 return -EINVAL;
202 }
203
204 if (cmdl->optind >= cmdl->argc) {
205 fprintf(stderr, "error, missing key\n");
206 return -EINVAL;
207 }
208
209 /* Get user key */
210 str = shift_cmdl(cmdl);
211 if (str2key(str, &input.key)) {
212 fprintf(stderr, "error, invalid key input\n");
213 return -EINVAL;
214 }
215
216 if (parse_opts(opts, cmdl) < 0)
217 return -EINVAL;
218
219 /* Get algorithm name, default: "gcm(aes)" */
220 opt_algname = get_opt(opts, "algname");
221 if (!opt_algname)
222 strcpy(input.key.alg_name, "gcm(aes)");
223 else
224 strcpy(input.key.alg_name, opt_algname->val);
225
226 /* Get node identity */
227 opt_nodeid = get_opt(opts, "nodeid");
228 if (opt_nodeid && str2nodeid(opt_nodeid->val, id)) {
229 fprintf(stderr, "error, invalid node identity\n");
230 return -EINVAL;
231 }
232
233 /* Init & do the command */
234 nlh = msg_init(buf, TIPC_NL_KEY_SET);
235 if (!nlh) {
236 fprintf(stderr, "error, message initialisation failed\n");
237 return -1;
238 }
239 nest = mnl_attr_nest_start(nlh, TIPC_NLA_NODE);
240 keysize = tipc_aead_key_size(&input.key);
241 mnl_attr_put(nlh, TIPC_NLA_NODE_KEY, keysize, &input.key);
242 if (opt_nodeid)
243 mnl_attr_put(nlh, TIPC_NLA_NODE_ID, TIPC_NODEID_LEN, id);
244 mnl_attr_nest_end(nlh, nest);
245 return msg_doit(nlh, NULL, NULL);
246}
247
248static int cmd_node_flush_key(struct nlmsghdr *nlh, const struct cmd *cmd,
249 struct cmdl *cmdl, void *data)
250{
251 char buf[MNL_SOCKET_BUFFER_SIZE];
252
253 if (help_flag) {
254 (cmd->help)(cmdl);
255 return -EINVAL;
256 }
257
258 /* Init & do the command */
259 nlh = msg_init(buf, TIPC_NL_KEY_FLUSH);
260 if (!nlh) {
261 fprintf(stderr, "error, message initialisation failed\n");
262 return -1;
263 }
264 return msg_doit(nlh, NULL, NULL);
265}
266
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267static int nodeid_get_cb(const struct nlmsghdr *nlh, void *data)
268{
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269 struct nlattr *info[TIPC_NLA_MAX + 1] = {};
270 struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {};
271 char str[33] = {0,};
272 uint8_t id[16] = {0,};
273 uint64_t *w0 = (uint64_t *) &id[0];
274 uint64_t *w1 = (uint64_t *) &id[8];
725ebfbf 275
8d05f33a 276 mnl_attr_parse(nlh, sizeof(struct genlmsghdr), parse_attrs, info);
725ebfbf
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277 if (!info[TIPC_NLA_NET])
278 return MNL_CB_ERROR;
279
280 mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs);
281 if (!attrs[TIPC_NLA_NET_ID])
282 return MNL_CB_ERROR;
283
284 *w0 = mnl_attr_get_u64(attrs[TIPC_NLA_NET_NODEID]);
285 *w1 = mnl_attr_get_u64(attrs[TIPC_NLA_NET_NODEID_W1]);
286 nodeid2str(id, str);
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287 printf("Node Identity Hash\n");
288 printf("%-33s", str);
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289 cmd_node_get_addr(NULL, NULL, NULL, NULL);
290 return MNL_CB_OK;
291}
292
293static int cmd_node_get_nodeid(struct nlmsghdr *nlh, const struct cmd *cmd,
294 struct cmdl *cmdl, void *data)
295{
296 char buf[MNL_SOCKET_BUFFER_SIZE];
297
298 if (help_flag) {
299 (cmd->help)(cmdl);
300 return -EINVAL;
301 }
302
303 nlh = msg_init(buf, TIPC_NL_NET_GET);
304 if (!nlh) {
305 fprintf(stderr, "error, message initialisation failed\n");
306 return -1;
307 }
308
309 return msg_dumpit(nlh, nodeid_get_cb, NULL);
310}
311
312
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313static int netid_get_cb(const struct nlmsghdr *nlh, void *data)
314{
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315 struct nlattr *info[TIPC_NLA_MAX + 1] = {};
316 struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {};
317
8d05f33a 318 mnl_attr_parse(nlh, sizeof(struct genlmsghdr), parse_attrs, info);
f043759d
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319 if (!info[TIPC_NLA_NET])
320 return MNL_CB_ERROR;
321
322 mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs);
323 if (!attrs[TIPC_NLA_NET_ID])
324 return MNL_CB_ERROR;
325
326 printf("%u\n", mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID]));
327
328 return MNL_CB_OK;
329}
330
331static int cmd_node_get_netid(struct nlmsghdr *nlh, const struct cmd *cmd,
332 struct cmdl *cmdl, void *data)
333{
334 char buf[MNL_SOCKET_BUFFER_SIZE];
335
336 if (help_flag) {
337 (cmd->help)(cmdl);
338 return -EINVAL;
339 }
340
341 if (!(nlh = msg_init(buf, TIPC_NL_NET_GET))) {
342 fprintf(stderr, "error, message initialisation failed\n");
343 return -1;
344 }
345
346 return msg_dumpit(nlh, netid_get_cb, NULL);
347}
348
349static int cmd_node_set_netid(struct nlmsghdr *nlh, const struct cmd *cmd,
350 struct cmdl *cmdl, void *data)
351{
352 int netid;
353 char buf[MNL_SOCKET_BUFFER_SIZE];
354 struct nlattr *nest;
355
356 if (help_flag) {
357 (cmd->help)(cmdl);
358 return -EINVAL;
359 }
360
361 if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) {
362 fprintf(stderr, "error, message initialisation failed\n");
363 return -1;
364 }
365
366 if (cmdl->argc != cmdl->optind + 1) {
367 fprintf(stderr, "Usage: %s node set netid NETID\n",
368 cmdl->argv[0]);
369 return -EINVAL;
370 }
371 netid = atoi(shift_cmdl(cmdl));
372
373 nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET);
374 mnl_attr_put_u32(nlh, TIPC_NLA_NET_ID, netid);
375 mnl_attr_nest_end(nlh, nest);
376
377 return msg_doit(nlh, NULL, NULL);
378}
379
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TL
380static void cmd_node_flush_help(struct cmdl *cmdl)
381{
382 fprintf(stderr,
383 "Usage: %s node flush PROPERTY\n\n"
384 "PROPERTIES\n"
385 " key - Flush all symmetric-keys\n",
386 cmdl->argv[0]);
387}
388
389static int cmd_node_flush(struct nlmsghdr *nlh, const struct cmd *cmd,
390 struct cmdl *cmdl, void *data)
391{
392 const struct cmd cmds[] = {
393 { "key", cmd_node_flush_key, NULL },
394 { NULL }
395 };
396
397 return run_cmd(nlh, cmd, cmds, cmdl, NULL);
398}
399
f043759d
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400static void cmd_node_set_help(struct cmdl *cmdl)
401{
402 fprintf(stderr,
403 "Usage: %s node set PROPERTY\n\n"
404 "PROPERTIES\n"
725ebfbf 405 " identity NODEID - Set node identity\n"
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TL
406 " clusterid CLUSTERID - Set local cluster id\n"
407 " key PROPERTY - Set symmetric-key\n",
f043759d
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408 cmdl->argv[0]);
409}
410
411static int cmd_node_set(struct nlmsghdr *nlh, const struct cmd *cmd,
412 struct cmdl *cmdl, void *data)
413{
414 const struct cmd cmds[] = {
725ebfbf
JM
415 { "address", cmd_node_set_addr, NULL },
416 { "identity", cmd_node_set_nodeid, NULL },
f043759d 417 { "netid", cmd_node_set_netid, NULL },
725ebfbf 418 { "clusterid", cmd_node_set_netid, NULL },
24bee3bf 419 { "key", cmd_node_set_key, cmd_node_set_key_help },
f043759d
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420 { NULL }
421 };
422
423 return run_cmd(nlh, cmd, cmds, cmdl, NULL);
424}
425
426static void cmd_node_get_help(struct cmdl *cmdl)
427{
428 fprintf(stderr,
429 "Usage: %s node get PROPERTY\n\n"
430 "PROPERTIES\n"
725ebfbf
JM
431 " identity - Get node identity\n"
432 " clusterid - Get local clusterid\n",
f043759d
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433 cmdl->argv[0]);
434}
435
436static int cmd_node_get(struct nlmsghdr *nlh, const struct cmd *cmd,
437 struct cmdl *cmdl, void *data)
438{
439 const struct cmd cmds[] = {
440 { "address", cmd_node_get_addr, NULL },
725ebfbf 441 { "identity", cmd_node_get_nodeid, NULL },
f043759d 442 { "netid", cmd_node_get_netid, NULL },
725ebfbf 443 { "clusterid", cmd_node_get_netid, NULL },
f043759d
RA
444 { NULL }
445 };
446
447 return run_cmd(nlh, cmd, cmds, cmdl, NULL);
448}
449
450void cmd_node_help(struct cmdl *cmdl)
451{
452 fprintf(stderr,
02573698 453 "Usage: %s node COMMAND [ARGS] ...\n\n"
f043759d
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454 "COMMANDS\n"
455 " list - List remote nodes\n"
456 " get - Get local node parameters\n"
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TL
457 " set - Set local node parameters\n"
458 " flush - Flush local node parameters\n",
f043759d
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459 cmdl->argv[0]);
460}
461
462int cmd_node(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl,
463 void *data)
464{
465 const struct cmd cmds[] = {
466 { "list", cmd_node_list, NULL },
467 { "get", cmd_node_get, cmd_node_get_help },
468 { "set", cmd_node_set, cmd_node_set_help },
24bee3bf 469 { "flush", cmd_node_flush, cmd_node_flush_help},
f043759d
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470 { NULL }
471 };
472
473 return run_cmd(nlh, cmd, cmds, cmdl, NULL);
474}