]>
Commit | Line | Data |
---|---|---|
ac79cbb9 | 1 | /* Copyright (C) 2016-2017 B.A.T.M.A.N. contributors: |
09748a22 MS |
2 | * |
3 | * Matthias Schiffer | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of version 2 of the GNU General Public | |
7 | * License as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #include "netlink.h" | |
19 | #include "main.h" | |
20 | ||
f32ed4b5 | 21 | #include <linux/atomic.h> |
8dad6f0d | 22 | #include <linux/byteorder/generic.h> |
9bcb94c8 | 23 | #include <linux/cache.h> |
5da0aef5 | 24 | #include <linux/errno.h> |
9bcb94c8 | 25 | #include <linux/export.h> |
5da0aef5 | 26 | #include <linux/fs.h> |
09748a22 | 27 | #include <linux/genetlink.h> |
5da0aef5 | 28 | #include <linux/if_ether.h> |
09748a22 | 29 | #include <linux/init.h> |
9bcb94c8 | 30 | #include <linux/kernel.h> |
5da0aef5 MS |
31 | #include <linux/netdevice.h> |
32 | #include <linux/netlink.h> | |
09748a22 | 33 | #include <linux/printk.h> |
b60620cf MS |
34 | #include <linux/rculist.h> |
35 | #include <linux/rcupdate.h> | |
36 | #include <linux/skbuff.h> | |
5da0aef5 | 37 | #include <linux/stddef.h> |
33a3bb4a | 38 | #include <linux/types.h> |
09748a22 | 39 | #include <net/genetlink.h> |
5da0aef5 | 40 | #include <net/netlink.h> |
b60620cf | 41 | #include <net/sock.h> |
09748a22 MS |
42 | #include <uapi/linux/batman_adv.h> |
43 | ||
07a3061e | 44 | #include "bat_algo.h" |
04f3f5bf | 45 | #include "bridge_loop_avoidance.h" |
d7129daf | 46 | #include "gateway_client.h" |
5da0aef5 | 47 | #include "hard-interface.h" |
85cf8c85 | 48 | #include "originator.h" |
8dad6f0d | 49 | #include "packet.h" |
5da0aef5 | 50 | #include "soft-interface.h" |
33a3bb4a | 51 | #include "tp_meter.h" |
d34f0550 | 52 | #include "translation-table.h" |
5da0aef5 | 53 | |
489111e5 | 54 | struct genl_family batadv_netlink_family; |
09748a22 | 55 | |
33a3bb4a AQ |
56 | /* multicast groups */ |
57 | enum batadv_netlink_multicast_groups { | |
58 | BATADV_NL_MCGRP_TPMETER, | |
59 | }; | |
60 | ||
deeb91f5 | 61 | static const struct genl_multicast_group batadv_netlink_mcgrps[] = { |
33a3bb4a AQ |
62 | [BATADV_NL_MCGRP_TPMETER] = { .name = BATADV_NL_MCAST_GROUP_TPMETER }, |
63 | }; | |
64 | ||
deeb91f5 | 65 | static const struct nla_policy batadv_netlink_policy[NUM_BATADV_ATTR] = { |
5da0aef5 MS |
66 | [BATADV_ATTR_VERSION] = { .type = NLA_STRING }, |
67 | [BATADV_ATTR_ALGO_NAME] = { .type = NLA_STRING }, | |
68 | [BATADV_ATTR_MESH_IFINDEX] = { .type = NLA_U32 }, | |
69 | [BATADV_ATTR_MESH_IFNAME] = { .type = NLA_STRING }, | |
70 | [BATADV_ATTR_MESH_ADDRESS] = { .len = ETH_ALEN }, | |
71 | [BATADV_ATTR_HARD_IFINDEX] = { .type = NLA_U32 }, | |
72 | [BATADV_ATTR_HARD_IFNAME] = { .type = NLA_STRING }, | |
73 | [BATADV_ATTR_HARD_ADDRESS] = { .len = ETH_ALEN }, | |
33a3bb4a AQ |
74 | [BATADV_ATTR_ORIG_ADDRESS] = { .len = ETH_ALEN }, |
75 | [BATADV_ATTR_TPMETER_RESULT] = { .type = NLA_U8 }, | |
76 | [BATADV_ATTR_TPMETER_TEST_TIME] = { .type = NLA_U32 }, | |
77 | [BATADV_ATTR_TPMETER_BYTES] = { .type = NLA_U64 }, | |
78 | [BATADV_ATTR_TPMETER_COOKIE] = { .type = NLA_U32 }, | |
b60620cf | 79 | [BATADV_ATTR_ACTIVE] = { .type = NLA_FLAG }, |
d34f0550 MS |
80 | [BATADV_ATTR_TT_ADDRESS] = { .len = ETH_ALEN }, |
81 | [BATADV_ATTR_TT_TTVN] = { .type = NLA_U8 }, | |
82 | [BATADV_ATTR_TT_LAST_TTVN] = { .type = NLA_U8 }, | |
83 | [BATADV_ATTR_TT_CRC32] = { .type = NLA_U32 }, | |
84 | [BATADV_ATTR_TT_VID] = { .type = NLA_U16 }, | |
85 | [BATADV_ATTR_TT_FLAGS] = { .type = NLA_U32 }, | |
86 | [BATADV_ATTR_FLAG_BEST] = { .type = NLA_FLAG }, | |
87 | [BATADV_ATTR_LAST_SEEN_MSECS] = { .type = NLA_U32 }, | |
024f99cb MS |
88 | [BATADV_ATTR_NEIGH_ADDRESS] = { .len = ETH_ALEN }, |
89 | [BATADV_ATTR_TQ] = { .type = NLA_U8 }, | |
f02a478f | 90 | [BATADV_ATTR_THROUGHPUT] = { .type = NLA_U32 }, |
d7129daf SE |
91 | [BATADV_ATTR_BANDWIDTH_UP] = { .type = NLA_U32 }, |
92 | [BATADV_ATTR_BANDWIDTH_DOWN] = { .type = NLA_U32 }, | |
93 | [BATADV_ATTR_ROUTER] = { .len = ETH_ALEN }, | |
04f3f5bf AL |
94 | [BATADV_ATTR_BLA_OWN] = { .type = NLA_FLAG }, |
95 | [BATADV_ATTR_BLA_ADDRESS] = { .len = ETH_ALEN }, | |
96 | [BATADV_ATTR_BLA_VID] = { .type = NLA_U16 }, | |
97 | [BATADV_ATTR_BLA_BACKBONE] = { .len = ETH_ALEN }, | |
98 | [BATADV_ATTR_BLA_CRC] = { .type = NLA_U16 }, | |
5da0aef5 MS |
99 | }; |
100 | ||
b60620cf MS |
101 | /** |
102 | * batadv_netlink_get_ifindex - Extract an interface index from a message | |
103 | * @nlh: Message header | |
104 | * @attrtype: Attribute which holds an interface index | |
105 | * | |
106 | * Return: interface index, or 0. | |
107 | */ | |
d34f0550 | 108 | int |
b60620cf MS |
109 | batadv_netlink_get_ifindex(const struct nlmsghdr *nlh, int attrtype) |
110 | { | |
111 | struct nlattr *attr = nlmsg_find_attr(nlh, GENL_HDRLEN, attrtype); | |
112 | ||
113 | return attr ? nla_get_u32(attr) : 0; | |
114 | } | |
115 | ||
5da0aef5 MS |
116 | /** |
117 | * batadv_netlink_mesh_info_put - fill in generic information about mesh | |
118 | * interface | |
119 | * @msg: netlink message to be sent back | |
120 | * @soft_iface: interface for which the data should be taken | |
121 | * | |
122 | * Return: 0 on success, < 0 on error | |
123 | */ | |
124 | static int | |
125 | batadv_netlink_mesh_info_put(struct sk_buff *msg, struct net_device *soft_iface) | |
126 | { | |
127 | struct batadv_priv *bat_priv = netdev_priv(soft_iface); | |
128 | struct batadv_hard_iface *primary_if = NULL; | |
129 | struct net_device *hard_iface; | |
130 | int ret = -ENOBUFS; | |
131 | ||
132 | if (nla_put_string(msg, BATADV_ATTR_VERSION, BATADV_SOURCE_VERSION) || | |
133 | nla_put_string(msg, BATADV_ATTR_ALGO_NAME, | |
29824a55 | 134 | bat_priv->algo_ops->name) || |
5da0aef5 MS |
135 | nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX, soft_iface->ifindex) || |
136 | nla_put_string(msg, BATADV_ATTR_MESH_IFNAME, soft_iface->name) || | |
137 | nla_put(msg, BATADV_ATTR_MESH_ADDRESS, ETH_ALEN, | |
f32ed4b5 SE |
138 | soft_iface->dev_addr) || |
139 | nla_put_u8(msg, BATADV_ATTR_TT_TTVN, | |
140 | (u8)atomic_read(&bat_priv->tt.vn))) | |
5da0aef5 MS |
141 | goto out; |
142 | ||
8dad6f0d SE |
143 | #ifdef CONFIG_BATMAN_ADV_BLA |
144 | if (nla_put_u16(msg, BATADV_ATTR_BLA_CRC, | |
145 | ntohs(bat_priv->bla.claim_dest.group))) | |
146 | goto out; | |
147 | #endif | |
148 | ||
5da0aef5 MS |
149 | primary_if = batadv_primary_if_get_selected(bat_priv); |
150 | if (primary_if && primary_if->if_status == BATADV_IF_ACTIVE) { | |
151 | hard_iface = primary_if->net_dev; | |
152 | ||
153 | if (nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX, | |
154 | hard_iface->ifindex) || | |
155 | nla_put_string(msg, BATADV_ATTR_HARD_IFNAME, | |
156 | hard_iface->name) || | |
157 | nla_put(msg, BATADV_ATTR_HARD_ADDRESS, ETH_ALEN, | |
158 | hard_iface->dev_addr)) | |
159 | goto out; | |
160 | } | |
161 | ||
162 | ret = 0; | |
163 | ||
164 | out: | |
165 | if (primary_if) | |
166 | batadv_hardif_put(primary_if); | |
167 | ||
168 | return ret; | |
169 | } | |
170 | ||
171 | /** | |
172 | * batadv_netlink_get_mesh_info - handle incoming BATADV_CMD_GET_MESH_INFO | |
173 | * netlink request | |
174 | * @skb: received netlink message | |
175 | * @info: receiver information | |
176 | * | |
177 | * Return: 0 on success, < 0 on error | |
178 | */ | |
179 | static int | |
180 | batadv_netlink_get_mesh_info(struct sk_buff *skb, struct genl_info *info) | |
181 | { | |
182 | struct net *net = genl_info_net(info); | |
183 | struct net_device *soft_iface; | |
184 | struct sk_buff *msg = NULL; | |
185 | void *msg_head; | |
186 | int ifindex; | |
187 | int ret; | |
188 | ||
189 | if (!info->attrs[BATADV_ATTR_MESH_IFINDEX]) | |
190 | return -EINVAL; | |
191 | ||
192 | ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]); | |
193 | if (!ifindex) | |
194 | return -EINVAL; | |
195 | ||
196 | soft_iface = dev_get_by_index(net, ifindex); | |
197 | if (!soft_iface || !batadv_softif_is_valid(soft_iface)) { | |
198 | ret = -ENODEV; | |
199 | goto out; | |
200 | } | |
201 | ||
202 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
203 | if (!msg) { | |
204 | ret = -ENOMEM; | |
205 | goto out; | |
206 | } | |
207 | ||
208 | msg_head = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
209 | &batadv_netlink_family, 0, | |
210 | BATADV_CMD_GET_MESH_INFO); | |
211 | if (!msg_head) { | |
212 | ret = -ENOBUFS; | |
213 | goto out; | |
214 | } | |
215 | ||
216 | ret = batadv_netlink_mesh_info_put(msg, soft_iface); | |
217 | ||
218 | out: | |
219 | if (soft_iface) | |
220 | dev_put(soft_iface); | |
221 | ||
222 | if (ret) { | |
223 | if (msg) | |
224 | nlmsg_free(msg); | |
225 | return ret; | |
226 | } | |
227 | ||
228 | genlmsg_end(msg, msg_head); | |
229 | return genlmsg_reply(msg, info); | |
230 | } | |
231 | ||
33a3bb4a AQ |
232 | /** |
233 | * batadv_netlink_tp_meter_put - Fill information of started tp_meter session | |
234 | * @msg: netlink message to be sent back | |
235 | * @cookie: tp meter session cookie | |
236 | * | |
237 | * Return: 0 on success, < 0 on error | |
238 | */ | |
239 | static int | |
240 | batadv_netlink_tp_meter_put(struct sk_buff *msg, u32 cookie) | |
241 | { | |
242 | if (nla_put_u32(msg, BATADV_ATTR_TPMETER_COOKIE, cookie)) | |
243 | return -ENOBUFS; | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | /** | |
249 | * batadv_netlink_tpmeter_notify - send tp_meter result via netlink to client | |
250 | * @bat_priv: the bat priv with all the soft interface information | |
251 | * @dst: destination of tp_meter session | |
252 | * @result: reason for tp meter session stop | |
253 | * @test_time: total time ot the tp_meter session | |
254 | * @total_bytes: bytes acked to the receiver | |
255 | * @cookie: cookie of tp_meter session | |
256 | * | |
257 | * Return: 0 on success, < 0 on error | |
258 | */ | |
259 | int batadv_netlink_tpmeter_notify(struct batadv_priv *bat_priv, const u8 *dst, | |
260 | u8 result, u32 test_time, u64 total_bytes, | |
261 | u32 cookie) | |
262 | { | |
263 | struct sk_buff *msg; | |
264 | void *hdr; | |
265 | int ret; | |
266 | ||
267 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
268 | if (!msg) | |
269 | return -ENOMEM; | |
270 | ||
271 | hdr = genlmsg_put(msg, 0, 0, &batadv_netlink_family, 0, | |
272 | BATADV_CMD_TP_METER); | |
273 | if (!hdr) { | |
274 | ret = -ENOBUFS; | |
275 | goto err_genlmsg; | |
276 | } | |
277 | ||
278 | if (nla_put_u32(msg, BATADV_ATTR_TPMETER_COOKIE, cookie)) | |
279 | goto nla_put_failure; | |
280 | ||
281 | if (nla_put_u32(msg, BATADV_ATTR_TPMETER_TEST_TIME, test_time)) | |
282 | goto nla_put_failure; | |
283 | ||
284 | if (nla_put_u64_64bit(msg, BATADV_ATTR_TPMETER_BYTES, total_bytes, | |
285 | BATADV_ATTR_PAD)) | |
286 | goto nla_put_failure; | |
287 | ||
288 | if (nla_put_u8(msg, BATADV_ATTR_TPMETER_RESULT, result)) | |
289 | goto nla_put_failure; | |
290 | ||
291 | if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN, dst)) | |
292 | goto nla_put_failure; | |
293 | ||
294 | genlmsg_end(msg, hdr); | |
295 | ||
296 | genlmsg_multicast_netns(&batadv_netlink_family, | |
297 | dev_net(bat_priv->soft_iface), msg, 0, | |
298 | BATADV_NL_MCGRP_TPMETER, GFP_KERNEL); | |
299 | ||
300 | return 0; | |
301 | ||
302 | nla_put_failure: | |
303 | genlmsg_cancel(msg, hdr); | |
304 | ret = -EMSGSIZE; | |
305 | ||
306 | err_genlmsg: | |
307 | nlmsg_free(msg); | |
308 | return ret; | |
309 | } | |
310 | ||
311 | /** | |
312 | * batadv_netlink_tp_meter_start - Start a new tp_meter session | |
313 | * @skb: received netlink message | |
314 | * @info: receiver information | |
315 | * | |
316 | * Return: 0 on success, < 0 on error | |
317 | */ | |
318 | static int | |
319 | batadv_netlink_tp_meter_start(struct sk_buff *skb, struct genl_info *info) | |
320 | { | |
321 | struct net *net = genl_info_net(info); | |
322 | struct net_device *soft_iface; | |
323 | struct batadv_priv *bat_priv; | |
324 | struct sk_buff *msg = NULL; | |
325 | u32 test_length; | |
326 | void *msg_head; | |
327 | int ifindex; | |
328 | u32 cookie; | |
329 | u8 *dst; | |
330 | int ret; | |
331 | ||
332 | if (!info->attrs[BATADV_ATTR_MESH_IFINDEX]) | |
333 | return -EINVAL; | |
334 | ||
335 | if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS]) | |
336 | return -EINVAL; | |
337 | ||
338 | if (!info->attrs[BATADV_ATTR_TPMETER_TEST_TIME]) | |
339 | return -EINVAL; | |
340 | ||
341 | ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]); | |
342 | if (!ifindex) | |
343 | return -EINVAL; | |
344 | ||
345 | dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]); | |
346 | ||
347 | test_length = nla_get_u32(info->attrs[BATADV_ATTR_TPMETER_TEST_TIME]); | |
348 | ||
349 | soft_iface = dev_get_by_index(net, ifindex); | |
350 | if (!soft_iface || !batadv_softif_is_valid(soft_iface)) { | |
351 | ret = -ENODEV; | |
352 | goto out; | |
353 | } | |
354 | ||
355 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
356 | if (!msg) { | |
357 | ret = -ENOMEM; | |
358 | goto out; | |
359 | } | |
360 | ||
361 | msg_head = genlmsg_put(msg, info->snd_portid, info->snd_seq, | |
362 | &batadv_netlink_family, 0, | |
363 | BATADV_CMD_TP_METER); | |
364 | if (!msg_head) { | |
365 | ret = -ENOBUFS; | |
366 | goto out; | |
367 | } | |
368 | ||
369 | bat_priv = netdev_priv(soft_iface); | |
370 | batadv_tp_start(bat_priv, dst, test_length, &cookie); | |
371 | ||
372 | ret = batadv_netlink_tp_meter_put(msg, cookie); | |
373 | ||
374 | out: | |
375 | if (soft_iface) | |
376 | dev_put(soft_iface); | |
377 | ||
378 | if (ret) { | |
379 | if (msg) | |
380 | nlmsg_free(msg); | |
381 | return ret; | |
382 | } | |
383 | ||
384 | genlmsg_end(msg, msg_head); | |
385 | return genlmsg_reply(msg, info); | |
386 | } | |
387 | ||
388 | /** | |
389 | * batadv_netlink_tp_meter_start - Cancel a running tp_meter session | |
390 | * @skb: received netlink message | |
391 | * @info: receiver information | |
392 | * | |
393 | * Return: 0 on success, < 0 on error | |
394 | */ | |
395 | static int | |
396 | batadv_netlink_tp_meter_cancel(struct sk_buff *skb, struct genl_info *info) | |
397 | { | |
398 | struct net *net = genl_info_net(info); | |
399 | struct net_device *soft_iface; | |
400 | struct batadv_priv *bat_priv; | |
401 | int ifindex; | |
402 | u8 *dst; | |
403 | int ret = 0; | |
404 | ||
405 | if (!info->attrs[BATADV_ATTR_MESH_IFINDEX]) | |
406 | return -EINVAL; | |
407 | ||
408 | if (!info->attrs[BATADV_ATTR_ORIG_ADDRESS]) | |
409 | return -EINVAL; | |
410 | ||
411 | ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]); | |
412 | if (!ifindex) | |
413 | return -EINVAL; | |
414 | ||
415 | dst = nla_data(info->attrs[BATADV_ATTR_ORIG_ADDRESS]); | |
416 | ||
417 | soft_iface = dev_get_by_index(net, ifindex); | |
418 | if (!soft_iface || !batadv_softif_is_valid(soft_iface)) { | |
419 | ret = -ENODEV; | |
420 | goto out; | |
421 | } | |
422 | ||
423 | bat_priv = netdev_priv(soft_iface); | |
424 | batadv_tp_stop(bat_priv, dst, BATADV_TP_REASON_CANCEL); | |
425 | ||
426 | out: | |
427 | if (soft_iface) | |
428 | dev_put(soft_iface); | |
429 | ||
430 | return ret; | |
431 | } | |
432 | ||
b60620cf MS |
433 | /** |
434 | * batadv_netlink_dump_hardif_entry - Dump one hard interface into a message | |
435 | * @msg: Netlink message to dump into | |
436 | * @portid: Port making netlink request | |
437 | * @seq: Sequence number of netlink message | |
438 | * @hard_iface: Hard interface to dump | |
439 | * | |
440 | * Return: error code, or 0 on success | |
441 | */ | |
442 | static int | |
443 | batadv_netlink_dump_hardif_entry(struct sk_buff *msg, u32 portid, u32 seq, | |
444 | struct batadv_hard_iface *hard_iface) | |
445 | { | |
446 | struct net_device *net_dev = hard_iface->net_dev; | |
447 | void *hdr; | |
448 | ||
449 | hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI, | |
450 | BATADV_CMD_GET_HARDIFS); | |
451 | if (!hdr) | |
452 | return -EMSGSIZE; | |
453 | ||
454 | if (nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX, | |
455 | net_dev->ifindex) || | |
456 | nla_put_string(msg, BATADV_ATTR_HARD_IFNAME, | |
457 | net_dev->name) || | |
458 | nla_put(msg, BATADV_ATTR_HARD_ADDRESS, ETH_ALEN, | |
459 | net_dev->dev_addr)) | |
460 | goto nla_put_failure; | |
461 | ||
462 | if (hard_iface->if_status == BATADV_IF_ACTIVE) { | |
463 | if (nla_put_flag(msg, BATADV_ATTR_ACTIVE)) | |
464 | goto nla_put_failure; | |
465 | } | |
466 | ||
467 | genlmsg_end(msg, hdr); | |
468 | return 0; | |
469 | ||
470 | nla_put_failure: | |
471 | genlmsg_cancel(msg, hdr); | |
472 | return -EMSGSIZE; | |
473 | } | |
474 | ||
475 | /** | |
476 | * batadv_netlink_dump_hardifs - Dump all hard interface into a messages | |
477 | * @msg: Netlink message to dump into | |
478 | * @cb: Parameters from query | |
479 | * | |
480 | * Return: error code, or length of reply message on success | |
481 | */ | |
482 | static int | |
483 | batadv_netlink_dump_hardifs(struct sk_buff *msg, struct netlink_callback *cb) | |
484 | { | |
485 | struct net *net = sock_net(cb->skb->sk); | |
486 | struct net_device *soft_iface; | |
487 | struct batadv_hard_iface *hard_iface; | |
488 | int ifindex; | |
489 | int portid = NETLINK_CB(cb->skb).portid; | |
490 | int seq = cb->nlh->nlmsg_seq; | |
491 | int skip = cb->args[0]; | |
492 | int i = 0; | |
493 | ||
494 | ifindex = batadv_netlink_get_ifindex(cb->nlh, | |
495 | BATADV_ATTR_MESH_IFINDEX); | |
496 | if (!ifindex) | |
497 | return -EINVAL; | |
498 | ||
499 | soft_iface = dev_get_by_index(net, ifindex); | |
500 | if (!soft_iface) | |
501 | return -ENODEV; | |
502 | ||
503 | if (!batadv_softif_is_valid(soft_iface)) { | |
504 | dev_put(soft_iface); | |
505 | return -ENODEV; | |
506 | } | |
507 | ||
508 | rcu_read_lock(); | |
509 | ||
510 | list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) { | |
511 | if (hard_iface->soft_iface != soft_iface) | |
512 | continue; | |
513 | ||
514 | if (i++ < skip) | |
515 | continue; | |
516 | ||
517 | if (batadv_netlink_dump_hardif_entry(msg, portid, seq, | |
518 | hard_iface)) { | |
519 | i--; | |
520 | break; | |
521 | } | |
522 | } | |
523 | ||
524 | rcu_read_unlock(); | |
525 | ||
526 | dev_put(soft_iface); | |
527 | ||
528 | cb->args[0] = i; | |
529 | ||
530 | return msg->len; | |
531 | } | |
532 | ||
ce1a21d1 | 533 | static const struct genl_ops batadv_netlink_ops[] = { |
5da0aef5 MS |
534 | { |
535 | .cmd = BATADV_CMD_GET_MESH_INFO, | |
536 | .flags = GENL_ADMIN_PERM, | |
537 | .policy = batadv_netlink_policy, | |
538 | .doit = batadv_netlink_get_mesh_info, | |
539 | }, | |
33a3bb4a AQ |
540 | { |
541 | .cmd = BATADV_CMD_TP_METER, | |
542 | .flags = GENL_ADMIN_PERM, | |
543 | .policy = batadv_netlink_policy, | |
544 | .doit = batadv_netlink_tp_meter_start, | |
545 | }, | |
546 | { | |
547 | .cmd = BATADV_CMD_TP_METER_CANCEL, | |
548 | .flags = GENL_ADMIN_PERM, | |
549 | .policy = batadv_netlink_policy, | |
550 | .doit = batadv_netlink_tp_meter_cancel, | |
551 | }, | |
07a3061e MS |
552 | { |
553 | .cmd = BATADV_CMD_GET_ROUTING_ALGOS, | |
554 | .flags = GENL_ADMIN_PERM, | |
555 | .policy = batadv_netlink_policy, | |
556 | .dumpit = batadv_algo_dump, | |
557 | }, | |
b60620cf MS |
558 | { |
559 | .cmd = BATADV_CMD_GET_HARDIFS, | |
560 | .flags = GENL_ADMIN_PERM, | |
561 | .policy = batadv_netlink_policy, | |
562 | .dumpit = batadv_netlink_dump_hardifs, | |
563 | }, | |
d34f0550 MS |
564 | { |
565 | .cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL, | |
566 | .flags = GENL_ADMIN_PERM, | |
567 | .policy = batadv_netlink_policy, | |
568 | .dumpit = batadv_tt_local_dump, | |
569 | }, | |
570 | { | |
571 | .cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL, | |
572 | .flags = GENL_ADMIN_PERM, | |
573 | .policy = batadv_netlink_policy, | |
574 | .dumpit = batadv_tt_global_dump, | |
575 | }, | |
85cf8c85 MS |
576 | { |
577 | .cmd = BATADV_CMD_GET_ORIGINATORS, | |
578 | .flags = GENL_ADMIN_PERM, | |
579 | .policy = batadv_netlink_policy, | |
580 | .dumpit = batadv_orig_dump, | |
581 | }, | |
582 | { | |
583 | .cmd = BATADV_CMD_GET_NEIGHBORS, | |
584 | .flags = GENL_ADMIN_PERM, | |
585 | .policy = batadv_netlink_policy, | |
586 | .dumpit = batadv_hardif_neigh_dump, | |
587 | }, | |
d7129daf SE |
588 | { |
589 | .cmd = BATADV_CMD_GET_GATEWAYS, | |
590 | .flags = GENL_ADMIN_PERM, | |
591 | .policy = batadv_netlink_policy, | |
592 | .dumpit = batadv_gw_dump, | |
593 | }, | |
04f3f5bf AL |
594 | { |
595 | .cmd = BATADV_CMD_GET_BLA_CLAIM, | |
596 | .flags = GENL_ADMIN_PERM, | |
597 | .policy = batadv_netlink_policy, | |
598 | .dumpit = batadv_bla_claim_dump, | |
599 | }, | |
ea4152e1 SW |
600 | { |
601 | .cmd = BATADV_CMD_GET_BLA_BACKBONE, | |
602 | .flags = GENL_ADMIN_PERM, | |
603 | .policy = batadv_netlink_policy, | |
604 | .dumpit = batadv_bla_backbone_dump, | |
605 | }, | |
606 | ||
09748a22 MS |
607 | }; |
608 | ||
56989f6d | 609 | struct genl_family batadv_netlink_family __ro_after_init = { |
489111e5 JB |
610 | .hdrsize = 0, |
611 | .name = BATADV_NL_NAME, | |
612 | .version = 1, | |
613 | .maxattr = BATADV_ATTR_MAX, | |
614 | .netnsok = true, | |
615 | .module = THIS_MODULE, | |
616 | .ops = batadv_netlink_ops, | |
617 | .n_ops = ARRAY_SIZE(batadv_netlink_ops), | |
618 | .mcgrps = batadv_netlink_mcgrps, | |
619 | .n_mcgrps = ARRAY_SIZE(batadv_netlink_mcgrps), | |
620 | }; | |
621 | ||
09748a22 MS |
622 | /** |
623 | * batadv_netlink_register - register batadv genl netlink family | |
624 | */ | |
625 | void __init batadv_netlink_register(void) | |
626 | { | |
627 | int ret; | |
628 | ||
489111e5 | 629 | ret = genl_register_family(&batadv_netlink_family); |
09748a22 MS |
630 | if (ret) |
631 | pr_warn("unable to register netlink family"); | |
632 | } | |
633 | ||
634 | /** | |
635 | * batadv_netlink_unregister - unregister batadv genl netlink family | |
636 | */ | |
637 | void batadv_netlink_unregister(void) | |
638 | { | |
639 | genl_unregister_family(&batadv_netlink_family); | |
640 | } |