Commit | Line | Data |
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2c21d115 SL |
1 | /* |
2 | * Netlink inteface for IEEE 802.15.4 stack | |
3 | * | |
4 | * Copyright 2007, 2008 Siemens AG | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | * | |
19 | * Written by: | |
20 | * Sergey Lapin <slapin@ossfans.org> | |
21 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | |
22 | */ | |
23 | ||
24 | #include <linux/kernel.h> | |
25 | #include <linux/if_arp.h> | |
26 | #include <linux/netdevice.h> | |
27 | #include <net/netlink.h> | |
28 | #include <net/genetlink.h> | |
29 | #include <linux/nl802154.h> | |
30 | #include <net/ieee802154/af_ieee802154.h> | |
31 | #include <net/ieee802154/nl802154.h> | |
32 | #include <net/ieee802154/netdevice.h> | |
33 | ||
34 | static unsigned int ieee802154_seq_num; | |
35 | ||
36 | static struct genl_family ieee802154_coordinator_family = { | |
37 | .id = GENL_ID_GENERATE, | |
38 | .hdrsize = 0, | |
39 | .name = IEEE802154_NL_NAME, | |
40 | .version = 1, | |
41 | .maxattr = IEEE802154_ATTR_MAX, | |
42 | }; | |
43 | ||
44 | static struct genl_multicast_group ieee802154_coord_mcgrp = { | |
45 | .name = IEEE802154_MCAST_COORD_NAME, | |
46 | }; | |
47 | ||
48 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { | |
49 | .name = IEEE802154_MCAST_BEACON_NAME, | |
50 | }; | |
51 | ||
52 | /* Requests to userspace */ | |
53 | static struct sk_buff *ieee802154_nl_create(int flags, u8 req) | |
54 | { | |
55 | void *hdr; | |
56 | struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); | |
57 | ||
58 | if (!msg) | |
59 | return NULL; | |
60 | ||
61 | hdr = genlmsg_put(msg, 0, ieee802154_seq_num++, | |
62 | &ieee802154_coordinator_family, flags, req); | |
63 | if (!hdr) { | |
64 | nlmsg_free(msg); | |
65 | return NULL; | |
66 | } | |
67 | ||
68 | return msg; | |
69 | } | |
70 | ||
71 | static int ieee802154_nl_finish(struct sk_buff *msg) | |
72 | { | |
73 | /* XXX: nlh is right at the start of msg */ | |
74 | void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); | |
75 | ||
76 | if (!genlmsg_end(msg, hdr)) | |
77 | goto out; | |
78 | ||
79 | return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id, | |
80 | GFP_ATOMIC); | |
81 | out: | |
82 | nlmsg_free(msg); | |
83 | return -ENOBUFS; | |
84 | } | |
85 | ||
86 | int ieee802154_nl_assoc_indic(struct net_device *dev, | |
87 | struct ieee802154_addr *addr, u8 cap) | |
88 | { | |
89 | struct sk_buff *msg; | |
90 | ||
91 | pr_debug("%s\n", __func__); | |
92 | ||
93 | if (addr->addr_type != IEEE802154_ADDR_LONG) { | |
94 | pr_err("%s: received non-long source address!\n", __func__); | |
95 | return -EINVAL; | |
96 | } | |
97 | ||
98 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); | |
99 | if (!msg) | |
100 | return -ENOBUFS; | |
101 | ||
102 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
103 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
104 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
105 | dev->dev_addr); | |
106 | ||
107 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
108 | addr->hwaddr); | |
109 | ||
110 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); | |
111 | ||
112 | return ieee802154_nl_finish(msg); | |
113 | ||
114 | nla_put_failure: | |
115 | nlmsg_free(msg); | |
116 | return -ENOBUFS; | |
117 | } | |
118 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); | |
119 | ||
120 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, | |
121 | u8 status) | |
122 | { | |
123 | struct sk_buff *msg; | |
124 | ||
125 | pr_debug("%s\n", __func__); | |
126 | ||
127 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); | |
128 | if (!msg) | |
129 | return -ENOBUFS; | |
130 | ||
131 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
132 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
133 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
134 | dev->dev_addr); | |
135 | ||
136 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); | |
137 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
138 | ||
139 | return ieee802154_nl_finish(msg); | |
140 | ||
141 | nla_put_failure: | |
142 | nlmsg_free(msg); | |
143 | return -ENOBUFS; | |
144 | } | |
145 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); | |
146 | ||
147 | int ieee802154_nl_disassoc_indic(struct net_device *dev, | |
148 | struct ieee802154_addr *addr, u8 reason) | |
149 | { | |
150 | struct sk_buff *msg; | |
151 | ||
152 | pr_debug("%s\n", __func__); | |
153 | ||
154 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); | |
155 | if (!msg) | |
156 | return -ENOBUFS; | |
157 | ||
158 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
159 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
160 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
161 | dev->dev_addr); | |
162 | ||
163 | if (addr->addr_type == IEEE802154_ADDR_LONG) | |
164 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
165 | addr->hwaddr); | |
166 | else | |
167 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, | |
168 | addr->short_addr); | |
169 | ||
170 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); | |
171 | ||
172 | return ieee802154_nl_finish(msg); | |
173 | ||
174 | nla_put_failure: | |
175 | nlmsg_free(msg); | |
176 | return -ENOBUFS; | |
177 | } | |
178 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); | |
179 | ||
180 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) | |
181 | { | |
182 | struct sk_buff *msg; | |
183 | ||
184 | pr_debug("%s\n", __func__); | |
185 | ||
186 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); | |
187 | if (!msg) | |
188 | return -ENOBUFS; | |
189 | ||
190 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
191 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
192 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
193 | dev->dev_addr); | |
194 | ||
195 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
196 | ||
197 | return ieee802154_nl_finish(msg); | |
198 | ||
199 | nla_put_failure: | |
200 | nlmsg_free(msg); | |
201 | return -ENOBUFS; | |
202 | } | |
203 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); | |
204 | ||
205 | int ieee802154_nl_beacon_indic(struct net_device *dev, | |
206 | u16 panid, u16 coord_addr) | |
207 | { | |
208 | struct sk_buff *msg; | |
209 | ||
210 | pr_debug("%s\n", __func__); | |
211 | ||
212 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); | |
213 | if (!msg) | |
214 | return -ENOBUFS; | |
215 | ||
216 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
217 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
218 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
219 | dev->dev_addr); | |
220 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); | |
221 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); | |
222 | ||
223 | return ieee802154_nl_finish(msg); | |
224 | ||
225 | nla_put_failure: | |
226 | nlmsg_free(msg); | |
227 | return -ENOBUFS; | |
228 | } | |
229 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); | |
230 | ||
231 | int ieee802154_nl_scan_confirm(struct net_device *dev, | |
232 | u8 status, u8 scan_type, u32 unscanned, | |
233 | u8 *edl/* , struct list_head *pan_desc_list */) | |
234 | { | |
235 | struct sk_buff *msg; | |
236 | ||
237 | pr_debug("%s\n", __func__); | |
238 | ||
239 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); | |
240 | if (!msg) | |
241 | return -ENOBUFS; | |
242 | ||
243 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
244 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
245 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
246 | dev->dev_addr); | |
247 | ||
248 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
249 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); | |
250 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); | |
251 | ||
252 | if (edl) | |
253 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); | |
254 | ||
255 | return ieee802154_nl_finish(msg); | |
256 | ||
257 | nla_put_failure: | |
258 | nlmsg_free(msg); | |
259 | return -ENOBUFS; | |
260 | } | |
261 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); | |
262 | ||
263 | /* Requests from userspace */ | |
264 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
265 | { | |
266 | struct net_device *dev; | |
267 | ||
268 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
269 | char name[IFNAMSIZ + 1]; | |
270 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], | |
271 | sizeof(name)); | |
272 | dev = dev_get_by_name(&init_net, name); | |
273 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) | |
274 | dev = dev_get_by_index(&init_net, | |
275 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
276 | else | |
277 | return NULL; | |
278 | ||
279 | if (dev->type != ARPHRD_IEEE802154) { | |
280 | dev_put(dev); | |
281 | return NULL; | |
282 | } | |
283 | ||
284 | return dev; | |
285 | } | |
286 | ||
287 | static int ieee802154_associate_req(struct sk_buff *skb, | |
288 | struct genl_info *info) | |
289 | { | |
290 | struct net_device *dev; | |
291 | struct ieee802154_addr addr; | |
292 | int ret = -EINVAL; | |
293 | ||
294 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
295 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
296 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
297 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
298 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
299 | return -EINVAL; | |
300 | ||
301 | dev = ieee802154_nl_get_dev(info); | |
302 | if (!dev) | |
303 | return -ENODEV; | |
304 | ||
305 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
306 | addr.addr_type = IEEE802154_ADDR_LONG; | |
307 | nla_memcpy(addr.hwaddr, | |
308 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], | |
309 | IEEE802154_ADDR_LEN); | |
310 | } else { | |
311 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
312 | addr.short_addr = nla_get_u16( | |
313 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
314 | } | |
315 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
316 | ||
317 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, | |
318 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
319 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); | |
320 | ||
321 | dev_put(dev); | |
322 | return ret; | |
323 | } | |
324 | ||
325 | static int ieee802154_associate_resp(struct sk_buff *skb, | |
326 | struct genl_info *info) | |
327 | { | |
328 | struct net_device *dev; | |
329 | struct ieee802154_addr addr; | |
330 | int ret = -EINVAL; | |
331 | ||
332 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
333 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
334 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
335 | return -EINVAL; | |
336 | ||
337 | dev = ieee802154_nl_get_dev(info); | |
338 | if (!dev) | |
339 | return -ENODEV; | |
340 | ||
341 | addr.addr_type = IEEE802154_ADDR_LONG; | |
342 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
343 | IEEE802154_ADDR_LEN); | |
344 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
345 | ||
346 | ||
347 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
348 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), | |
349 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); | |
350 | ||
351 | dev_put(dev); | |
352 | return ret; | |
353 | } | |
354 | ||
355 | static int ieee802154_disassociate_req(struct sk_buff *skb, | |
356 | struct genl_info *info) | |
357 | { | |
358 | struct net_device *dev; | |
359 | struct ieee802154_addr addr; | |
360 | int ret = -EINVAL; | |
361 | ||
362 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
363 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || | |
364 | !info->attrs[IEEE802154_ATTR_REASON]) | |
365 | return -EINVAL; | |
366 | ||
367 | dev = ieee802154_nl_get_dev(info); | |
368 | if (!dev) | |
369 | return -ENODEV; | |
370 | ||
371 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
372 | addr.addr_type = IEEE802154_ADDR_LONG; | |
373 | nla_memcpy(addr.hwaddr, | |
374 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
375 | IEEE802154_ADDR_LEN); | |
376 | } else { | |
377 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
378 | addr.short_addr = nla_get_u16( | |
379 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); | |
380 | } | |
381 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
382 | ||
383 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
384 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
385 | ||
386 | dev_put(dev); | |
387 | return ret; | |
388 | } | |
389 | ||
390 | /* | |
391 | * PANid, channel, beacon_order = 15, superframe_order = 15, | |
392 | * PAN_coordinator, battery_life_extension = 0, | |
393 | * coord_realignment = 0, security_enable = 0 | |
394 | */ | |
395 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) | |
396 | { | |
397 | struct net_device *dev; | |
398 | struct ieee802154_addr addr; | |
399 | ||
400 | u8 channel, bcn_ord, sf_ord; | |
401 | int pan_coord, blx, coord_realign; | |
402 | int ret; | |
403 | ||
404 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
405 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
406 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
407 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
408 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
409 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
410 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
411 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
412 | ) | |
413 | return -EINVAL; | |
414 | ||
415 | dev = ieee802154_nl_get_dev(info); | |
416 | if (!dev) | |
417 | return -ENODEV; | |
418 | ||
419 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
420 | addr.short_addr = nla_get_u16( | |
421 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
422 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
423 | ||
424 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
425 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
426 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
427 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
428 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
429 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
430 | ||
431 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, | |
432 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
433 | ||
434 | dev_put(dev); | |
435 | return ret; | |
436 | } | |
437 | ||
438 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) | |
439 | { | |
440 | struct net_device *dev; | |
441 | int ret; | |
442 | u8 type; | |
443 | u32 channels; | |
444 | u8 duration; | |
445 | ||
446 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
447 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
448 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
449 | return -EINVAL; | |
450 | ||
451 | dev = ieee802154_nl_get_dev(info); | |
452 | if (!dev) | |
453 | return -ENODEV; | |
454 | ||
455 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
456 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
457 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
458 | ||
459 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, | |
460 | duration); | |
461 | ||
462 | dev_put(dev); | |
463 | return ret; | |
464 | } | |
465 | ||
466 | #define IEEE802154_OP(_cmd, _func) \ | |
467 | { \ | |
468 | .cmd = _cmd, \ | |
469 | .policy = ieee802154_policy, \ | |
470 | .doit = _func, \ | |
471 | .dumpit = NULL, \ | |
472 | .flags = GENL_ADMIN_PERM, \ | |
473 | } | |
474 | ||
475 | static struct genl_ops ieee802154_coordinator_ops[] = { | |
476 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), | |
477 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), | |
478 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), | |
479 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), | |
480 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), | |
481 | }; | |
482 | ||
483 | static int __init ieee802154_nl_init(void) | |
484 | { | |
485 | int rc; | |
486 | int i; | |
487 | ||
488 | rc = genl_register_family(&ieee802154_coordinator_family); | |
489 | if (rc) | |
490 | goto fail; | |
491 | ||
492 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
493 | &ieee802154_coord_mcgrp); | |
494 | if (rc) | |
495 | goto fail; | |
496 | ||
497 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
498 | &ieee802154_beacon_mcgrp); | |
499 | if (rc) | |
500 | goto fail; | |
501 | ||
502 | ||
503 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { | |
504 | rc = genl_register_ops(&ieee802154_coordinator_family, | |
505 | &ieee802154_coordinator_ops[i]); | |
506 | if (rc) | |
507 | goto fail; | |
508 | } | |
509 | ||
510 | return 0; | |
511 | ||
512 | fail: | |
513 | genl_unregister_family(&ieee802154_coordinator_family); | |
514 | return rc; | |
515 | } | |
516 | module_init(ieee802154_nl_init); | |
517 | ||
518 | static void __exit ieee802154_nl_exit(void) | |
519 | { | |
520 | genl_unregister_family(&ieee802154_coordinator_family); | |
521 | } | |
522 | module_exit(ieee802154_nl_exit); | |
523 |