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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 }, | |
113 | [TIPC_NLA_PROP_WIN] = { .type = NLA_U32 } | |
114 | }; | |
115 | ||
116 | const struct nla_policy tipc_nl_bearer_policy[TIPC_NLA_BEARER_MAX + 1] = { | |
117 | [TIPC_NLA_BEARER_UNSPEC] = { .type = NLA_UNSPEC }, | |
118 | [TIPC_NLA_BEARER_NAME] = { .type = NLA_STRING, | |
119 | .len = TIPC_MAX_BEARER_NAME }, | |
120 | [TIPC_NLA_BEARER_PROP] = { .type = NLA_NESTED }, | |
121 | [TIPC_NLA_BEARER_DOMAIN] = { .type = NLA_U32 } | |
122 | }; | |
123 | ||
124 | const struct nla_policy tipc_nl_media_policy[TIPC_NLA_MEDIA_MAX + 1] = { | |
125 | [TIPC_NLA_MEDIA_UNSPEC] = { .type = NLA_UNSPEC }, | |
126 | [TIPC_NLA_MEDIA_NAME] = { .type = NLA_STRING }, | |
127 | [TIPC_NLA_MEDIA_PROP] = { .type = NLA_NESTED } | |
128 | }; | |
129 | ||
130 | const struct nla_policy tipc_nl_udp_policy[TIPC_NLA_UDP_MAX + 1] = { | |
131 | [TIPC_NLA_UDP_UNSPEC] = {.type = NLA_UNSPEC}, | |
132 | [TIPC_NLA_UDP_LOCAL] = {.type = NLA_BINARY, | |
133 | .len = sizeof(struct sockaddr_storage)}, | |
134 | [TIPC_NLA_UDP_REMOTE] = {.type = NLA_BINARY, | |
135 | .len = sizeof(struct sockaddr_storage)}, | |
136 | }; | |
137 | ||
0655f6a8 RA |
138 | /* Users of the legacy API (tipc-config) can't handle that we add operations, |
139 | * so we have a separate genl handling for the new API. | |
140 | */ | |
0655f6a8 RA |
141 | static const struct genl_ops tipc_genl_v2_ops[] = { |
142 | { | |
143 | .cmd = TIPC_NL_BEARER_DISABLE, | |
144 | .doit = tipc_nl_bearer_disable, | |
145 | .policy = tipc_nl_policy, | |
146 | }, | |
147 | { | |
148 | .cmd = TIPC_NL_BEARER_ENABLE, | |
149 | .doit = tipc_nl_bearer_enable, | |
150 | .policy = tipc_nl_policy, | |
35b9dd76 RA |
151 | }, |
152 | { | |
153 | .cmd = TIPC_NL_BEARER_GET, | |
154 | .doit = tipc_nl_bearer_get, | |
155 | .dumpit = tipc_nl_bearer_dump, | |
156 | .policy = tipc_nl_policy, | |
315c00bc | 157 | }, |
ef20cd4d RA |
158 | { |
159 | .cmd = TIPC_NL_BEARER_ADD, | |
160 | .doit = tipc_nl_bearer_add, | |
161 | .policy = tipc_nl_policy, | |
162 | }, | |
315c00bc RA |
163 | { |
164 | .cmd = TIPC_NL_BEARER_SET, | |
165 | .doit = tipc_nl_bearer_set, | |
166 | .policy = tipc_nl_policy, | |
34b78a12 RA |
167 | }, |
168 | { | |
169 | .cmd = TIPC_NL_SOCK_GET, | |
9a07efa9 | 170 | .start = tipc_dump_start, |
34b78a12 | 171 | .dumpit = tipc_nl_sk_dump, |
9a07efa9 | 172 | .done = tipc_dump_done, |
34b78a12 | 173 | .policy = tipc_nl_policy, |
1a1a143d RA |
174 | }, |
175 | { | |
176 | .cmd = TIPC_NL_PUBL_GET, | |
177 | .dumpit = tipc_nl_publ_dump, | |
178 | .policy = tipc_nl_policy, | |
7be57fc6 RA |
179 | }, |
180 | { | |
181 | .cmd = TIPC_NL_LINK_GET, | |
5be9c086 | 182 | .doit = tipc_nl_node_get_link, |
38206d59 | 183 | .dumpit = tipc_nl_node_dump_link, |
7be57fc6 | 184 | .policy = tipc_nl_policy, |
f96ce7a2 RA |
185 | }, |
186 | { | |
187 | .cmd = TIPC_NL_LINK_SET, | |
5be9c086 | 188 | .doit = tipc_nl_node_set_link, |
f96ce7a2 | 189 | .policy = tipc_nl_policy, |
ae36342b RA |
190 | }, |
191 | { | |
192 | .cmd = TIPC_NL_LINK_RESET_STATS, | |
5be9c086 | 193 | .doit = tipc_nl_node_reset_link_stats, |
ae36342b | 194 | .policy = tipc_nl_policy, |
46f15c67 RA |
195 | }, |
196 | { | |
197 | .cmd = TIPC_NL_MEDIA_GET, | |
198 | .doit = tipc_nl_media_get, | |
199 | .dumpit = tipc_nl_media_dump, | |
200 | .policy = tipc_nl_policy, | |
1e55417d RA |
201 | }, |
202 | { | |
203 | .cmd = TIPC_NL_MEDIA_SET, | |
204 | .doit = tipc_nl_media_set, | |
205 | .policy = tipc_nl_policy, | |
3e4b6ab5 RA |
206 | }, |
207 | { | |
208 | .cmd = TIPC_NL_NODE_GET, | |
209 | .dumpit = tipc_nl_node_dump, | |
210 | .policy = tipc_nl_policy, | |
fd3cf2ad RA |
211 | }, |
212 | { | |
213 | .cmd = TIPC_NL_NET_GET, | |
214 | .dumpit = tipc_nl_net_dump, | |
215 | .policy = tipc_nl_policy, | |
27c21416 RA |
216 | }, |
217 | { | |
218 | .cmd = TIPC_NL_NET_SET, | |
219 | .doit = tipc_nl_net_set, | |
220 | .policy = tipc_nl_policy, | |
1593123a RA |
221 | }, |
222 | { | |
223 | .cmd = TIPC_NL_NAME_TABLE_GET, | |
224 | .dumpit = tipc_nl_name_table_dump, | |
225 | .policy = tipc_nl_policy, | |
7b3f5229 PB |
226 | }, |
227 | { | |
228 | .cmd = TIPC_NL_MON_SET, | |
229 | .doit = tipc_nl_node_set_monitor, | |
230 | .policy = tipc_nl_policy, | |
231 | }, | |
bf1035b2 PB |
232 | { |
233 | .cmd = TIPC_NL_MON_GET, | |
234 | .doit = tipc_nl_node_get_monitor, | |
cf6f7e1d PB |
235 | .dumpit = tipc_nl_node_dump_monitor, |
236 | .policy = tipc_nl_policy, | |
237 | }, | |
238 | { | |
239 | .cmd = TIPC_NL_MON_PEER_GET, | |
240 | .dumpit = tipc_nl_node_dump_monitor_peer, | |
bf1035b2 PB |
241 | .policy = tipc_nl_policy, |
242 | }, | |
b3404022 RA |
243 | { |
244 | .cmd = TIPC_NL_PEER_REMOVE, | |
245 | .doit = tipc_nl_peer_rm, | |
246 | .policy = tipc_nl_policy, | |
832629ca RA |
247 | }, |
248 | #ifdef CONFIG_TIPC_MEDIA_UDP | |
249 | { | |
250 | .cmd = TIPC_NL_UDP_GET_REMOTEIP, | |
251 | .dumpit = tipc_udp_nl_dump_remoteip, | |
252 | .policy = tipc_nl_policy, | |
253 | }, | |
254 | #endif | |
0655f6a8 RA |
255 | }; |
256 | ||
56989f6d | 257 | struct genl_family tipc_genl_family __ro_after_init = { |
489111e5 JB |
258 | .name = TIPC_GENL_V2_NAME, |
259 | .version = TIPC_GENL_V2_VERSION, | |
260 | .hdrsize = 0, | |
261 | .maxattr = TIPC_NLA_MAX, | |
262 | .netnsok = true, | |
263 | .module = THIS_MODULE, | |
264 | .ops = tipc_genl_v2_ops, | |
265 | .n_ops = ARRAY_SIZE(tipc_genl_v2_ops), | |
266 | }; | |
267 | ||
1a1a143d RA |
268 | int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr) |
269 | { | |
bfb3e5dd | 270 | u32 maxattr = tipc_genl_family.maxattr; |
1a1a143d | 271 | |
c90c39da | 272 | *attr = genl_family_attrbuf(&tipc_genl_family); |
1a1a143d RA |
273 | if (!*attr) |
274 | return -EOPNOTSUPP; | |
275 | ||
fceb6435 JB |
276 | return nlmsg_parse(nlh, GENL_HDRLEN, *attr, maxattr, tipc_nl_policy, |
277 | NULL); | |
1a1a143d RA |
278 | } |
279 | ||
56989f6d | 280 | int __init tipc_netlink_start(void) |
b97bf3fd | 281 | { |
acb0a200 | 282 | int res; |
b70e4f45 | 283 | |
489111e5 | 284 | res = genl_register_family(&tipc_genl_family); |
acb0a200 | 285 | if (res) { |
2cf8aa19 | 286 | pr_err("Failed to register netlink interface\n"); |
acb0a200 MM |
287 | return res; |
288 | } | |
c4307285 | 289 | return 0; |
b97bf3fd PL |
290 | } |
291 | ||
4323add6 | 292 | void tipc_netlink_stop(void) |
b97bf3fd | 293 | { |
acb0a200 | 294 | genl_unregister_family(&tipc_genl_family); |
b97bf3fd | 295 | } |