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Commit | Line | Data |
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b97bf3fd PL |
1 | /* |
2 | * net/tipc/netlink.c: TIPC configuration handling | |
c4307285 | 3 | * |
0655f6a8 | 4 | * Copyright (c) 2005-2006, 2014, Ericsson AB |
59f0c452 | 5 | * Copyright (c) 2005-2007, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. Neither the names of the copyright holders nor the names of its | |
17 | * contributors may be used to endorse or promote products derived from | |
18 | * this software without specific prior written permission. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
20 | * Alternatively, this software may be distributed under the terms of the |
21 | * GNU General Public License ("GPL") version 2 as published by the Free | |
22 | * Software Foundation. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
37 | #include "core.h" | |
34b78a12 | 38 | #include "socket.h" |
1593123a | 39 | #include "name_table.h" |
0655f6a8 | 40 | #include "bearer.h" |
7be57fc6 | 41 | #include "link.h" |
3e4b6ab5 | 42 | #include "node.h" |
fd3cf2ad | 43 | #include "net.h" |
832629ca | 44 | #include "udp_media.h" |
b97bf3fd PL |
45 | #include <net/genetlink.h> |
46 | ||
0655f6a8 RA |
47 | static const struct nla_policy tipc_nl_policy[TIPC_NLA_MAX + 1] = { |
48 | [TIPC_NLA_UNSPEC] = { .type = NLA_UNSPEC, }, | |
49 | [TIPC_NLA_BEARER] = { .type = NLA_NESTED, }, | |
34b78a12 | 50 | [TIPC_NLA_SOCK] = { .type = NLA_NESTED, }, |
7be57fc6 RA |
51 | [TIPC_NLA_PUBL] = { .type = NLA_NESTED, }, |
52 | [TIPC_NLA_LINK] = { .type = NLA_NESTED, }, | |
46f15c67 | 53 | [TIPC_NLA_MEDIA] = { .type = NLA_NESTED, }, |
fd3cf2ad | 54 | [TIPC_NLA_NODE] = { .type = NLA_NESTED, }, |
1593123a | 55 | [TIPC_NLA_NET] = { .type = NLA_NESTED, }, |
7b3f5229 PB |
56 | [TIPC_NLA_NAME_TABLE] = { .type = NLA_NESTED, }, |
57 | [TIPC_NLA_MON] = { .type = NLA_NESTED, }, | |
0655f6a8 RA |
58 | }; |
59 | ||
49cc66ea RA |
60 | const struct nla_policy |
61 | tipc_nl_name_table_policy[TIPC_NLA_NAME_TABLE_MAX + 1] = { | |
62 | [TIPC_NLA_NAME_TABLE_UNSPEC] = { .type = NLA_UNSPEC }, | |
63 | [TIPC_NLA_NAME_TABLE_PUBL] = { .type = NLA_NESTED } | |
64 | }; | |
65 | ||
7b3f5229 PB |
66 | const struct nla_policy tipc_nl_monitor_policy[TIPC_NLA_MON_MAX + 1] = { |
67 | [TIPC_NLA_MON_UNSPEC] = { .type = NLA_UNSPEC }, | |
cf6f7e1d | 68 | [TIPC_NLA_MON_REF] = { .type = NLA_U32 }, |
7b3f5229 PB |
69 | [TIPC_NLA_MON_ACTIVATION_THRESHOLD] = { .type = NLA_U32 }, |
70 | }; | |
71 | ||
49cc66ea RA |
72 | const struct nla_policy tipc_nl_sock_policy[TIPC_NLA_SOCK_MAX + 1] = { |
73 | [TIPC_NLA_SOCK_UNSPEC] = { .type = NLA_UNSPEC }, | |
74 | [TIPC_NLA_SOCK_ADDR] = { .type = NLA_U32 }, | |
75 | [TIPC_NLA_SOCK_REF] = { .type = NLA_U32 }, | |
76 | [TIPC_NLA_SOCK_CON] = { .type = NLA_NESTED }, | |
77 | [TIPC_NLA_SOCK_HAS_PUBL] = { .type = NLA_FLAG } | |
78 | }; | |
79 | ||
80 | const struct nla_policy tipc_nl_net_policy[TIPC_NLA_NET_MAX + 1] = { | |
81 | [TIPC_NLA_NET_UNSPEC] = { .type = NLA_UNSPEC }, | |
ec518f21 ED |
82 | [TIPC_NLA_NET_ID] = { .type = NLA_U32 }, |
83 | [TIPC_NLA_NET_ADDR] = { .type = NLA_U32 }, | |
c6404122 ED |
84 | [TIPC_NLA_NET_NODEID] = { .type = NLA_U64 }, |
85 | [TIPC_NLA_NET_NODEID_W1] = { .type = NLA_U64 }, | |
49cc66ea RA |
86 | }; |
87 | ||
88 | const struct nla_policy tipc_nl_link_policy[TIPC_NLA_LINK_MAX + 1] = { | |
89 | [TIPC_NLA_LINK_UNSPEC] = { .type = NLA_UNSPEC }, | |
90 | [TIPC_NLA_LINK_NAME] = { .type = NLA_STRING, | |
91 | .len = TIPC_MAX_LINK_NAME }, | |
92 | [TIPC_NLA_LINK_MTU] = { .type = NLA_U32 }, | |
93 | [TIPC_NLA_LINK_BROADCAST] = { .type = NLA_FLAG }, | |
94 | [TIPC_NLA_LINK_UP] = { .type = NLA_FLAG }, | |
95 | [TIPC_NLA_LINK_ACTIVE] = { .type = NLA_FLAG }, | |
96 | [TIPC_NLA_LINK_PROP] = { .type = NLA_NESTED }, | |
97 | [TIPC_NLA_LINK_STATS] = { .type = NLA_NESTED }, | |
98 | [TIPC_NLA_LINK_RX] = { .type = NLA_U32 }, | |
99 | [TIPC_NLA_LINK_TX] = { .type = NLA_U32 } | |
100 | }; | |
101 | ||
102 | const struct nla_policy tipc_nl_node_policy[TIPC_NLA_NODE_MAX + 1] = { | |
103 | [TIPC_NLA_NODE_UNSPEC] = { .type = NLA_UNSPEC }, | |
104 | [TIPC_NLA_NODE_ADDR] = { .type = NLA_U32 }, | |
105 | [TIPC_NLA_NODE_UP] = { .type = NLA_FLAG } | |
106 | }; | |
107 | ||
108 | /* Properties valid for media, bearer and link */ | |
109 | const struct nla_policy tipc_nl_prop_policy[TIPC_NLA_PROP_MAX + 1] = { | |
110 | [TIPC_NLA_PROP_UNSPEC] = { .type = NLA_UNSPEC }, | |
111 | [TIPC_NLA_PROP_PRIO] = { .type = NLA_U32 }, | |
112 | [TIPC_NLA_PROP_TOL] = { .type = NLA_U32 }, | |
02ec6caf HL |
113 | [TIPC_NLA_PROP_WIN] = { .type = NLA_U32 }, |
114 | [TIPC_NLA_PROP_BROADCAST] = { .type = NLA_U32 }, | |
115 | [TIPC_NLA_PROP_BROADCAST_RATIO] = { .type = NLA_U32 } | |
49cc66ea RA |
116 | }; |
117 | ||
118 | const struct nla_policy tipc_nl_bearer_policy[TIPC_NLA_BEARER_MAX + 1] = { | |
119 | [TIPC_NLA_BEARER_UNSPEC] = { .type = NLA_UNSPEC }, | |
120 | [TIPC_NLA_BEARER_NAME] = { .type = NLA_STRING, | |
121 | .len = TIPC_MAX_BEARER_NAME }, | |
122 | [TIPC_NLA_BEARER_PROP] = { .type = NLA_NESTED }, | |
123 | [TIPC_NLA_BEARER_DOMAIN] = { .type = NLA_U32 } | |
124 | }; | |
125 | ||
126 | const struct nla_policy tipc_nl_media_policy[TIPC_NLA_MEDIA_MAX + 1] = { | |
127 | [TIPC_NLA_MEDIA_UNSPEC] = { .type = NLA_UNSPEC }, | |
128 | [TIPC_NLA_MEDIA_NAME] = { .type = NLA_STRING }, | |
129 | [TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED } | |
130 | }; | |
131 | ||
132 | const struct nla_policy tipc_nl_udp_policy[TIPC_NLA_UDP_MAX + 1] = { | |
133 | [TIPC_NLA_UDP_UNSPEC] = {.type = NLA_UNSPEC}, | |
134 | [TIPC_NLA_UDP_LOCAL] = {.type = NLA_BINARY, | |
135 | .len = sizeof(struct sockaddr_storage)}, | |
136 | [TIPC_NLA_UDP_REMOTE] = {.type = NLA_BINARY, | |
137 | .len = sizeof(struct sockaddr_storage)}, | |
138 | }; | |
139 | ||
0655f6a8 RA |
140 | /* Users of the legacy API (tipc-config) can't handle that we add operations, |
141 | * so we have a separate genl handling for the new API. | |
142 | */ | |
0655f6a8 RA |
143 | static const struct genl_ops tipc_genl_v2_ops[] = { |
144 | { | |
145 | .cmd = TIPC_NL_BEARER_DISABLE, | |
ef6243ac | 146 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
0655f6a8 | 147 | .doit = tipc_nl_bearer_disable, |
0655f6a8 RA |
148 | }, |
149 | { | |
150 | .cmd = TIPC_NL_BEARER_ENABLE, | |
ef6243ac | 151 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
0655f6a8 | 152 | .doit = tipc_nl_bearer_enable, |
35b9dd76 RA |
153 | }, |
154 | { | |
155 | .cmd = TIPC_NL_BEARER_GET, | |
ef6243ac | 156 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
35b9dd76 RA |
157 | .doit = tipc_nl_bearer_get, |
158 | .dumpit = tipc_nl_bearer_dump, | |
315c00bc | 159 | }, |
ef20cd4d RA |
160 | { |
161 | .cmd = TIPC_NL_BEARER_ADD, | |
ef6243ac | 162 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
ef20cd4d | 163 | .doit = tipc_nl_bearer_add, |
ef20cd4d | 164 | }, |
315c00bc RA |
165 | { |
166 | .cmd = TIPC_NL_BEARER_SET, | |
ef6243ac | 167 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
315c00bc | 168 | .doit = tipc_nl_bearer_set, |
34b78a12 RA |
169 | }, |
170 | { | |
171 | .cmd = TIPC_NL_SOCK_GET, | |
ef6243ac | 172 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
9a07efa9 | 173 | .start = tipc_dump_start, |
34b78a12 | 174 | .dumpit = tipc_nl_sk_dump, |
9a07efa9 | 175 | .done = tipc_dump_done, |
1a1a143d RA |
176 | }, |
177 | { | |
178 | .cmd = TIPC_NL_PUBL_GET, | |
ef6243ac | 179 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1a1a143d | 180 | .dumpit = tipc_nl_publ_dump, |
7be57fc6 RA |
181 | }, |
182 | { | |
183 | .cmd = TIPC_NL_LINK_GET, | |
ef6243ac | 184 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
5be9c086 | 185 | .doit = tipc_nl_node_get_link, |
38206d59 | 186 | .dumpit = tipc_nl_node_dump_link, |
f96ce7a2 RA |
187 | }, |
188 | { | |
189 | .cmd = TIPC_NL_LINK_SET, | |
ef6243ac | 190 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
5be9c086 | 191 | .doit = tipc_nl_node_set_link, |
ae36342b RA |
192 | }, |
193 | { | |
194 | .cmd = TIPC_NL_LINK_RESET_STATS, | |
ef6243ac | 195 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
5be9c086 | 196 | .doit = tipc_nl_node_reset_link_stats, |
46f15c67 RA |
197 | }, |
198 | { | |
199 | .cmd = TIPC_NL_MEDIA_GET, | |
ef6243ac | 200 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
46f15c67 RA |
201 | .doit = tipc_nl_media_get, |
202 | .dumpit = tipc_nl_media_dump, | |
1e55417d RA |
203 | }, |
204 | { | |
205 | .cmd = TIPC_NL_MEDIA_SET, | |
ef6243ac | 206 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1e55417d | 207 | .doit = tipc_nl_media_set, |
3e4b6ab5 RA |
208 | }, |
209 | { | |
210 | .cmd = TIPC_NL_NODE_GET, | |
ef6243ac | 211 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
3e4b6ab5 | 212 | .dumpit = tipc_nl_node_dump, |
fd3cf2ad RA |
213 | }, |
214 | { | |
215 | .cmd = TIPC_NL_NET_GET, | |
ef6243ac | 216 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
fd3cf2ad | 217 | .dumpit = tipc_nl_net_dump, |
27c21416 RA |
218 | }, |
219 | { | |
220 | .cmd = TIPC_NL_NET_SET, | |
ef6243ac | 221 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
27c21416 | 222 | .doit = tipc_nl_net_set, |
1593123a RA |
223 | }, |
224 | { | |
225 | .cmd = TIPC_NL_NAME_TABLE_GET, | |
ef6243ac | 226 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
1593123a | 227 | .dumpit = tipc_nl_name_table_dump, |
7b3f5229 PB |
228 | }, |
229 | { | |
230 | .cmd = TIPC_NL_MON_SET, | |
ef6243ac | 231 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
7b3f5229 | 232 | .doit = tipc_nl_node_set_monitor, |
7b3f5229 | 233 | }, |
bf1035b2 PB |
234 | { |
235 | .cmd = TIPC_NL_MON_GET, | |
ef6243ac | 236 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
bf1035b2 | 237 | .doit = tipc_nl_node_get_monitor, |
cf6f7e1d | 238 | .dumpit = tipc_nl_node_dump_monitor, |
cf6f7e1d PB |
239 | }, |
240 | { | |
241 | .cmd = TIPC_NL_MON_PEER_GET, | |
ef6243ac | 242 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
cf6f7e1d | 243 | .dumpit = tipc_nl_node_dump_monitor_peer, |
bf1035b2 | 244 | }, |
b3404022 RA |
245 | { |
246 | .cmd = TIPC_NL_PEER_REMOVE, | |
ef6243ac | 247 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
b3404022 | 248 | .doit = tipc_nl_peer_rm, |
832629ca RA |
249 | }, |
250 | #ifdef CONFIG_TIPC_MEDIA_UDP | |
251 | { | |
252 | .cmd = TIPC_NL_UDP_GET_REMOTEIP, | |
ef6243ac | 253 | .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, |
832629ca | 254 | .dumpit = tipc_udp_nl_dump_remoteip, |
832629ca RA |
255 | }, |
256 | #endif | |
0655f6a8 RA |
257 | }; |
258 | ||
56989f6d | 259 | struct genl_family tipc_genl_family __ro_after_init = { |
489111e5 JB |
260 | .name = TIPC_GENL_V2_NAME, |
261 | .version = TIPC_GENL_V2_VERSION, | |
262 | .hdrsize = 0, | |
263 | .maxattr = TIPC_NLA_MAX, | |
c04b6ea4 | 264 | .policy = tipc_nl_policy, |
489111e5 JB |
265 | .netnsok = true, |
266 | .module = THIS_MODULE, | |
267 | .ops = tipc_genl_v2_ops, | |
268 | .n_ops = ARRAY_SIZE(tipc_genl_v2_ops), | |
269 | }; | |
270 | ||
1a1a143d RA |
271 | int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr) |
272 | { | |
bfb3e5dd | 273 | u32 maxattr = tipc_genl_family.maxattr; |
1a1a143d | 274 | |
c90c39da | 275 | *attr = genl_family_attrbuf(&tipc_genl_family); |
1a1a143d RA |
276 | if (!*attr) |
277 | return -EOPNOTSUPP; | |
278 | ||
8cb08174 JB |
279 | return nlmsg_parse_deprecated(nlh, GENL_HDRLEN, *attr, maxattr, |
280 | tipc_nl_policy, NULL); | |
1a1a143d RA |
281 | } |
282 | ||
56989f6d | 283 | int __init tipc_netlink_start(void) |
b97bf3fd | 284 | { |
acb0a200 | 285 | int res; |
b70e4f45 | 286 | |
489111e5 | 287 | res = genl_register_family(&tipc_genl_family); |
acb0a200 | 288 | if (res) { |
2cf8aa19 | 289 | pr_err("Failed to register netlink interface\n"); |
acb0a200 MM |
290 | return res; |
291 | } | |
c4307285 | 292 | return 0; |
b97bf3fd PL |
293 | } |
294 | ||
4323add6 | 295 | void tipc_netlink_stop(void) |
b97bf3fd | 296 | { |
acb0a200 | 297 | genl_unregister_family(&tipc_genl_family); |
b97bf3fd | 298 | } |