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f043759d RA |
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 | ||
27 | static int node_list_cb(const struct nlmsghdr *nlh, void *data) | |
28 | { | |
29 | uint32_t addr; | |
30 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); | |
31 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; | |
32 | struct nlattr *attrs[TIPC_NLA_NODE_MAX + 1] = {}; | |
33 | ||
34 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); | |
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]); | |
43 | printf("<%u.%u.%u>: ", | |
44 | tipc_zone(addr), | |
45 | tipc_cluster(addr), | |
46 | tipc_node(addr)); | |
47 | ||
48 | if (attrs[TIPC_NLA_NODE_UP]) | |
49 | printf("up\n"); | |
50 | else | |
51 | printf("down\n"); | |
52 | ||
53 | return MNL_CB_OK; | |
54 | } | |
55 | ||
56 | static int cmd_node_list(struct nlmsghdr *nlh, const struct cmd *cmd, | |
57 | struct cmdl *cmdl, void *data) | |
58 | { | |
59 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
60 | ||
61 | if (help_flag) { | |
62 | fprintf(stderr, "Usage: %s node list\n", cmdl->argv[0]); | |
63 | return -EINVAL; | |
64 | } | |
65 | ||
66 | if (!(nlh = msg_init(buf, TIPC_NL_NODE_GET))) { | |
67 | fprintf(stderr, "error, message initialisation failed\n"); | |
68 | return -1; | |
69 | } | |
70 | ||
71 | return msg_dumpit(nlh, node_list_cb, NULL); | |
72 | } | |
73 | ||
74 | static int cmd_node_set_addr(struct nlmsghdr *nlh, const struct cmd *cmd, | |
75 | struct cmdl *cmdl, void *data) | |
76 | { | |
77 | char *str; | |
78 | uint32_t addr; | |
79 | struct nlattr *nest; | |
80 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
81 | ||
82 | if (cmdl->argc != cmdl->optind + 1) { | |
83 | fprintf(stderr, "Usage: %s node set address ADDRESS\n", | |
84 | cmdl->argv[0]); | |
85 | return -EINVAL; | |
86 | } | |
87 | ||
88 | str = shift_cmdl(cmdl); | |
89 | addr = str2addr(str); | |
90 | if (!addr) | |
91 | return -1; | |
92 | ||
93 | if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) { | |
94 | fprintf(stderr, "error, message initialisation failed\n"); | |
95 | return -1; | |
96 | } | |
97 | ||
98 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET); | |
99 | mnl_attr_put_u32(nlh, TIPC_NLA_NET_ADDR, addr); | |
100 | mnl_attr_nest_end(nlh, nest); | |
101 | ||
102 | return msg_doit(nlh, NULL, NULL); | |
103 | } | |
104 | ||
105 | static int cmd_node_get_addr(struct nlmsghdr *nlh, const struct cmd *cmd, | |
106 | struct cmdl *cmdl, void *data) | |
107 | { | |
108 | int sk; | |
109 | socklen_t sz = sizeof(struct sockaddr_tipc); | |
110 | struct sockaddr_tipc addr; | |
111 | ||
436270a4 PS |
112 | sk = socket(AF_TIPC, SOCK_RDM, 0); |
113 | if (sk < 0) { | |
f043759d RA |
114 | fprintf(stderr, "opening TIPC socket: %s\n", strerror(errno)); |
115 | return -1; | |
116 | } | |
117 | ||
118 | if (getsockname(sk, (struct sockaddr *)&addr, &sz) < 0) { | |
119 | fprintf(stderr, "getting TIPC socket address: %s\n", | |
120 | strerror(errno)); | |
121 | close(sk); | |
122 | return -1; | |
123 | } | |
124 | close(sk); | |
125 | ||
126 | printf("<%u.%u.%u>\n", | |
127 | tipc_zone(addr.addr.id.node), | |
128 | tipc_cluster(addr.addr.id.node), | |
129 | tipc_node(addr.addr.id.node)); | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | static int netid_get_cb(const struct nlmsghdr *nlh, void *data) | |
135 | { | |
136 | struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh); | |
137 | struct nlattr *info[TIPC_NLA_MAX + 1] = {}; | |
138 | struct nlattr *attrs[TIPC_NLA_NET_MAX + 1] = {}; | |
139 | ||
140 | mnl_attr_parse(nlh, sizeof(*genl), parse_attrs, info); | |
141 | if (!info[TIPC_NLA_NET]) | |
142 | return MNL_CB_ERROR; | |
143 | ||
144 | mnl_attr_parse_nested(info[TIPC_NLA_NET], parse_attrs, attrs); | |
145 | if (!attrs[TIPC_NLA_NET_ID]) | |
146 | return MNL_CB_ERROR; | |
147 | ||
148 | printf("%u\n", mnl_attr_get_u32(attrs[TIPC_NLA_NET_ID])); | |
149 | ||
150 | return MNL_CB_OK; | |
151 | } | |
152 | ||
153 | static int cmd_node_get_netid(struct nlmsghdr *nlh, const struct cmd *cmd, | |
154 | struct cmdl *cmdl, void *data) | |
155 | { | |
156 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
157 | ||
158 | if (help_flag) { | |
159 | (cmd->help)(cmdl); | |
160 | return -EINVAL; | |
161 | } | |
162 | ||
163 | if (!(nlh = msg_init(buf, TIPC_NL_NET_GET))) { | |
164 | fprintf(stderr, "error, message initialisation failed\n"); | |
165 | return -1; | |
166 | } | |
167 | ||
168 | return msg_dumpit(nlh, netid_get_cb, NULL); | |
169 | } | |
170 | ||
171 | static int cmd_node_set_netid(struct nlmsghdr *nlh, const struct cmd *cmd, | |
172 | struct cmdl *cmdl, void *data) | |
173 | { | |
174 | int netid; | |
175 | char buf[MNL_SOCKET_BUFFER_SIZE]; | |
176 | struct nlattr *nest; | |
177 | ||
178 | if (help_flag) { | |
179 | (cmd->help)(cmdl); | |
180 | return -EINVAL; | |
181 | } | |
182 | ||
183 | if (!(nlh = msg_init(buf, TIPC_NL_NET_SET))) { | |
184 | fprintf(stderr, "error, message initialisation failed\n"); | |
185 | return -1; | |
186 | } | |
187 | ||
188 | if (cmdl->argc != cmdl->optind + 1) { | |
189 | fprintf(stderr, "Usage: %s node set netid NETID\n", | |
190 | cmdl->argv[0]); | |
191 | return -EINVAL; | |
192 | } | |
193 | netid = atoi(shift_cmdl(cmdl)); | |
194 | ||
195 | nest = mnl_attr_nest_start(nlh, TIPC_NLA_NET); | |
196 | mnl_attr_put_u32(nlh, TIPC_NLA_NET_ID, netid); | |
197 | mnl_attr_nest_end(nlh, nest); | |
198 | ||
199 | return msg_doit(nlh, NULL, NULL); | |
200 | } | |
201 | ||
202 | static void cmd_node_set_help(struct cmdl *cmdl) | |
203 | { | |
204 | fprintf(stderr, | |
205 | "Usage: %s node set PROPERTY\n\n" | |
206 | "PROPERTIES\n" | |
207 | " address ADDRESS - Set local address\n" | |
208 | " netid NETID - Set local netid\n", | |
209 | cmdl->argv[0]); | |
210 | } | |
211 | ||
212 | static int cmd_node_set(struct nlmsghdr *nlh, const struct cmd *cmd, | |
213 | struct cmdl *cmdl, void *data) | |
214 | { | |
215 | const struct cmd cmds[] = { | |
216 | { "address", cmd_node_set_addr, NULL }, | |
217 | { "netid", cmd_node_set_netid, NULL }, | |
218 | { NULL } | |
219 | }; | |
220 | ||
221 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); | |
222 | } | |
223 | ||
224 | static void cmd_node_get_help(struct cmdl *cmdl) | |
225 | { | |
226 | fprintf(stderr, | |
227 | "Usage: %s node get PROPERTY\n\n" | |
228 | "PROPERTIES\n" | |
229 | " address - Get local address\n" | |
230 | " netid - Get local netid\n", | |
231 | cmdl->argv[0]); | |
232 | } | |
233 | ||
234 | static int cmd_node_get(struct nlmsghdr *nlh, const struct cmd *cmd, | |
235 | struct cmdl *cmdl, void *data) | |
236 | { | |
237 | const struct cmd cmds[] = { | |
238 | { "address", cmd_node_get_addr, NULL }, | |
239 | { "netid", cmd_node_get_netid, NULL }, | |
240 | { NULL } | |
241 | }; | |
242 | ||
243 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); | |
244 | } | |
245 | ||
246 | void cmd_node_help(struct cmdl *cmdl) | |
247 | { | |
248 | fprintf(stderr, | |
02573698 | 249 | "Usage: %s node COMMAND [ARGS] ...\n\n" |
f043759d RA |
250 | "COMMANDS\n" |
251 | " list - List remote nodes\n" | |
252 | " get - Get local node parameters\n" | |
253 | " set - Set local node parameters\n", | |
254 | cmdl->argv[0]); | |
255 | } | |
256 | ||
257 | int cmd_node(struct nlmsghdr *nlh, const struct cmd *cmd, struct cmdl *cmdl, | |
258 | void *data) | |
259 | { | |
260 | const struct cmd cmds[] = { | |
261 | { "list", cmd_node_list, NULL }, | |
262 | { "get", cmd_node_get, cmd_node_get_help }, | |
263 | { "set", cmd_node_set, cmd_node_set_help }, | |
264 | { NULL } | |
265 | }; | |
266 | ||
267 | return run_cmd(nlh, cmd, cmds, cmdl, NULL); | |
268 | } |