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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 | * Maxim Osipov <maxim.osipov@siemens.com> | |
23 | */ | |
24 | ||
25 | #include <linux/kernel.h> | |
26 | #include <linux/if_arp.h> | |
27 | #include <linux/netdevice.h> | |
28 | #include <net/netlink.h> | |
29 | #include <net/genetlink.h> | |
30 | #include <net/sock.h> | |
31 | #include <linux/nl802154.h> | |
32 | #include <net/af_ieee802154.h> | |
33 | #include <net/nl802154.h> | |
34 | #include <net/ieee802154.h> | |
35 | #include <net/ieee802154_netdev.h> | |
36 | ||
37 | #include "ieee802154.h" | |
38 | ||
39 | static struct genl_multicast_group ieee802154_coord_mcgrp = { | |
40 | .name = IEEE802154_MCAST_COORD_NAME, | |
41 | }; | |
42 | ||
43 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { | |
44 | .name = IEEE802154_MCAST_BEACON_NAME, | |
45 | }; | |
46 | ||
47 | int ieee802154_nl_assoc_indic(struct net_device *dev, | |
48 | struct ieee802154_addr *addr, u8 cap) | |
49 | { | |
50 | struct sk_buff *msg; | |
51 | ||
52 | pr_debug("%s\n", __func__); | |
53 | ||
54 | if (addr->addr_type != IEEE802154_ADDR_LONG) { | |
55 | pr_err("%s: received non-long source address!\n", __func__); | |
56 | return -EINVAL; | |
57 | } | |
58 | ||
59 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); | |
60 | if (!msg) | |
61 | return -ENOBUFS; | |
62 | ||
63 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
64 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
65 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
66 | dev->dev_addr); | |
67 | ||
68 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
69 | addr->hwaddr); | |
70 | ||
71 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); | |
72 | ||
73 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
74 | ||
75 | nla_put_failure: | |
76 | nlmsg_free(msg); | |
77 | return -ENOBUFS; | |
78 | } | |
79 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); | |
80 | ||
81 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, | |
82 | u8 status) | |
83 | { | |
84 | struct sk_buff *msg; | |
85 | ||
86 | pr_debug("%s\n", __func__); | |
87 | ||
88 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); | |
89 | if (!msg) | |
90 | return -ENOBUFS; | |
91 | ||
92 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
93 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
94 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
95 | dev->dev_addr); | |
96 | ||
97 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); | |
98 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
99 | ||
100 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
101 | ||
102 | nla_put_failure: | |
103 | nlmsg_free(msg); | |
104 | return -ENOBUFS; | |
105 | } | |
106 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); | |
107 | ||
108 | int ieee802154_nl_disassoc_indic(struct net_device *dev, | |
109 | struct ieee802154_addr *addr, u8 reason) | |
110 | { | |
111 | struct sk_buff *msg; | |
112 | ||
113 | pr_debug("%s\n", __func__); | |
114 | ||
115 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); | |
116 | if (!msg) | |
117 | return -ENOBUFS; | |
118 | ||
119 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
120 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
121 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
122 | dev->dev_addr); | |
123 | ||
124 | if (addr->addr_type == IEEE802154_ADDR_LONG) | |
125 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
126 | addr->hwaddr); | |
127 | else | |
128 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, | |
129 | addr->short_addr); | |
130 | ||
131 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); | |
132 | ||
133 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
134 | ||
135 | nla_put_failure: | |
136 | nlmsg_free(msg); | |
137 | return -ENOBUFS; | |
138 | } | |
139 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); | |
140 | ||
141 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) | |
142 | { | |
143 | struct sk_buff *msg; | |
144 | ||
145 | pr_debug("%s\n", __func__); | |
146 | ||
147 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); | |
148 | if (!msg) | |
149 | return -ENOBUFS; | |
150 | ||
151 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
152 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
153 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
154 | dev->dev_addr); | |
155 | ||
156 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
157 | ||
158 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
159 | ||
160 | nla_put_failure: | |
161 | nlmsg_free(msg); | |
162 | return -ENOBUFS; | |
163 | } | |
164 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); | |
165 | ||
166 | int ieee802154_nl_beacon_indic(struct net_device *dev, | |
167 | u16 panid, u16 coord_addr) | |
168 | { | |
169 | struct sk_buff *msg; | |
170 | ||
171 | pr_debug("%s\n", __func__); | |
172 | ||
173 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); | |
174 | if (!msg) | |
175 | return -ENOBUFS; | |
176 | ||
177 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
178 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
179 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
180 | dev->dev_addr); | |
181 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); | |
182 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); | |
183 | ||
184 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
185 | ||
186 | nla_put_failure: | |
187 | nlmsg_free(msg); | |
188 | return -ENOBUFS; | |
189 | } | |
190 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); | |
191 | ||
192 | int ieee802154_nl_scan_confirm(struct net_device *dev, | |
193 | u8 status, u8 scan_type, u32 unscanned, u8 page, | |
194 | u8 *edl/* , struct list_head *pan_desc_list */) | |
195 | { | |
196 | struct sk_buff *msg; | |
197 | ||
198 | pr_debug("%s\n", __func__); | |
199 | ||
200 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); | |
201 | if (!msg) | |
202 | return -ENOBUFS; | |
203 | ||
204 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
205 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
206 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
207 | dev->dev_addr); | |
208 | ||
209 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
210 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); | |
211 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); | |
212 | NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page); | |
213 | ||
214 | if (edl) | |
215 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); | |
216 | ||
217 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
218 | ||
219 | nla_put_failure: | |
220 | nlmsg_free(msg); | |
221 | return -ENOBUFS; | |
222 | } | |
223 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); | |
224 | ||
225 | int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) | |
226 | { | |
227 | struct sk_buff *msg; | |
228 | ||
229 | pr_debug("%s\n", __func__); | |
230 | ||
231 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
232 | if (!msg) | |
233 | return -ENOBUFS; | |
234 | ||
235 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
236 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
237 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
238 | dev->dev_addr); | |
239 | ||
240 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
241 | ||
242 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
243 | ||
244 | nla_put_failure: | |
245 | nlmsg_free(msg); | |
246 | return -ENOBUFS; | |
247 | } | |
248 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); | |
249 | ||
250 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid, | |
251 | u32 seq, int flags, struct net_device *dev) | |
252 | { | |
253 | void *hdr; | |
254 | ||
255 | pr_debug("%s\n", __func__); | |
256 | ||
257 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, | |
258 | IEEE802154_LIST_IFACE); | |
259 | if (!hdr) | |
260 | goto out; | |
261 | ||
262 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
263 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
264 | ||
265 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
266 | dev->dev_addr); | |
267 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, | |
268 | ieee802154_mlme_ops(dev)->get_short_addr(dev)); | |
269 | NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID, | |
270 | ieee802154_mlme_ops(dev)->get_pan_id(dev)); | |
271 | return genlmsg_end(msg, hdr); | |
272 | ||
273 | nla_put_failure: | |
274 | genlmsg_cancel(msg, hdr); | |
275 | out: | |
276 | return -EMSGSIZE; | |
277 | } | |
278 | ||
279 | /* Requests from userspace */ | |
280 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
281 | { | |
282 | struct net_device *dev; | |
283 | ||
284 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
285 | char name[IFNAMSIZ + 1]; | |
286 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], | |
287 | sizeof(name)); | |
288 | dev = dev_get_by_name(&init_net, name); | |
289 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) | |
290 | dev = dev_get_by_index(&init_net, | |
291 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
292 | else | |
293 | return NULL; | |
294 | ||
295 | if (!dev) | |
296 | return NULL; | |
297 | ||
298 | if (dev->type != ARPHRD_IEEE802154) { | |
299 | dev_put(dev); | |
300 | return NULL; | |
301 | } | |
302 | ||
303 | return dev; | |
304 | } | |
305 | ||
306 | static int ieee802154_associate_req(struct sk_buff *skb, | |
307 | struct genl_info *info) | |
308 | { | |
309 | struct net_device *dev; | |
310 | struct ieee802154_addr addr; | |
311 | u8 page; | |
312 | int ret = -EINVAL; | |
313 | ||
314 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
315 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
316 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
317 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
318 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
319 | return -EINVAL; | |
320 | ||
321 | dev = ieee802154_nl_get_dev(info); | |
322 | if (!dev) | |
323 | return -ENODEV; | |
324 | ||
325 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
326 | addr.addr_type = IEEE802154_ADDR_LONG; | |
327 | nla_memcpy(addr.hwaddr, | |
328 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], | |
329 | IEEE802154_ADDR_LEN); | |
330 | } else { | |
331 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
332 | addr.short_addr = nla_get_u16( | |
333 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
334 | } | |
335 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
336 | ||
337 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
338 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
339 | else | |
340 | page = 0; | |
341 | ||
342 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, | |
343 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
344 | page, | |
345 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); | |
346 | ||
347 | dev_put(dev); | |
348 | return ret; | |
349 | } | |
350 | ||
351 | static int ieee802154_associate_resp(struct sk_buff *skb, | |
352 | struct genl_info *info) | |
353 | { | |
354 | struct net_device *dev; | |
355 | struct ieee802154_addr addr; | |
356 | int ret = -EINVAL; | |
357 | ||
358 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
359 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
360 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
361 | return -EINVAL; | |
362 | ||
363 | dev = ieee802154_nl_get_dev(info); | |
364 | if (!dev) | |
365 | return -ENODEV; | |
366 | ||
367 | addr.addr_type = IEEE802154_ADDR_LONG; | |
368 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
369 | IEEE802154_ADDR_LEN); | |
370 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
371 | ||
372 | ||
373 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
374 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), | |
375 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); | |
376 | ||
377 | dev_put(dev); | |
378 | return ret; | |
379 | } | |
380 | ||
381 | static int ieee802154_disassociate_req(struct sk_buff *skb, | |
382 | struct genl_info *info) | |
383 | { | |
384 | struct net_device *dev; | |
385 | struct ieee802154_addr addr; | |
386 | int ret = -EINVAL; | |
387 | ||
388 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
389 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || | |
390 | !info->attrs[IEEE802154_ATTR_REASON]) | |
391 | return -EINVAL; | |
392 | ||
393 | dev = ieee802154_nl_get_dev(info); | |
394 | if (!dev) | |
395 | return -ENODEV; | |
396 | ||
397 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
398 | addr.addr_type = IEEE802154_ADDR_LONG; | |
399 | nla_memcpy(addr.hwaddr, | |
400 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
401 | IEEE802154_ADDR_LEN); | |
402 | } else { | |
403 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
404 | addr.short_addr = nla_get_u16( | |
405 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); | |
406 | } | |
407 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
408 | ||
409 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
410 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
411 | ||
412 | dev_put(dev); | |
413 | return ret; | |
414 | } | |
415 | ||
416 | /* | |
417 | * PANid, channel, beacon_order = 15, superframe_order = 15, | |
418 | * PAN_coordinator, battery_life_extension = 0, | |
419 | * coord_realignment = 0, security_enable = 0 | |
420 | */ | |
421 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) | |
422 | { | |
423 | struct net_device *dev; | |
424 | struct ieee802154_addr addr; | |
425 | ||
426 | u8 channel, bcn_ord, sf_ord; | |
427 | u8 page; | |
428 | int pan_coord, blx, coord_realign; | |
429 | int ret; | |
430 | ||
431 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
432 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
433 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
434 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
435 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
436 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
437 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
438 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
439 | ) | |
440 | return -EINVAL; | |
441 | ||
442 | dev = ieee802154_nl_get_dev(info); | |
443 | if (!dev) | |
444 | return -ENODEV; | |
445 | ||
446 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
447 | addr.short_addr = nla_get_u16( | |
448 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
449 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
450 | ||
451 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
452 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
453 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
454 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
455 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
456 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
457 | ||
458 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
459 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
460 | else | |
461 | page = 0; | |
462 | ||
463 | ||
464 | if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { | |
465 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); | |
466 | dev_put(dev); | |
467 | return -EINVAL; | |
468 | } | |
469 | ||
470 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, | |
471 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
472 | ||
473 | dev_put(dev); | |
474 | return ret; | |
475 | } | |
476 | ||
477 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) | |
478 | { | |
479 | struct net_device *dev; | |
480 | int ret; | |
481 | u8 type; | |
482 | u32 channels; | |
483 | u8 duration; | |
484 | u8 page; | |
485 | ||
486 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
487 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
488 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
489 | return -EINVAL; | |
490 | ||
491 | dev = ieee802154_nl_get_dev(info); | |
492 | if (!dev) | |
493 | return -ENODEV; | |
494 | ||
495 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
496 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
497 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
498 | ||
499 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
500 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
501 | else | |
502 | page = 0; | |
503 | ||
504 | ||
505 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page, | |
506 | duration); | |
507 | ||
508 | dev_put(dev); | |
509 | return ret; | |
510 | } | |
511 | ||
512 | static int ieee802154_list_iface(struct sk_buff *skb, | |
513 | struct genl_info *info) | |
514 | { | |
515 | /* Request for interface name, index, type, IEEE address, | |
516 | PAN Id, short address */ | |
517 | struct sk_buff *msg; | |
518 | struct net_device *dev = NULL; | |
519 | int rc = -ENOBUFS; | |
520 | ||
521 | pr_debug("%s\n", __func__); | |
522 | ||
523 | dev = ieee802154_nl_get_dev(info); | |
524 | if (!dev) | |
525 | return -ENODEV; | |
526 | ||
527 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
528 | if (!msg) | |
529 | goto out_dev; | |
530 | ||
531 | rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq, | |
532 | 0, dev); | |
533 | if (rc < 0) | |
534 | goto out_free; | |
535 | ||
536 | dev_put(dev); | |
537 | ||
538 | return genlmsg_reply(msg, info); | |
539 | out_free: | |
540 | nlmsg_free(msg); | |
541 | out_dev: | |
542 | dev_put(dev); | |
543 | return rc; | |
544 | ||
545 | } | |
546 | ||
547 | static int ieee802154_dump_iface(struct sk_buff *skb, | |
548 | struct netlink_callback *cb) | |
549 | { | |
550 | struct net *net = sock_net(skb->sk); | |
551 | struct net_device *dev; | |
552 | int idx; | |
553 | int s_idx = cb->args[0]; | |
554 | ||
555 | pr_debug("%s\n", __func__); | |
556 | ||
557 | idx = 0; | |
558 | for_each_netdev(net, dev) { | |
559 | if (idx < s_idx || (dev->type != ARPHRD_IEEE802154)) | |
560 | goto cont; | |
561 | ||
562 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid, | |
563 | cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0) | |
564 | break; | |
565 | cont: | |
566 | idx++; | |
567 | } | |
568 | cb->args[0] = idx; | |
569 | ||
570 | return skb->len; | |
571 | } | |
572 | ||
573 | static struct genl_ops ieee802154_coordinator_ops[] = { | |
574 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), | |
575 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), | |
576 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), | |
577 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), | |
578 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), | |
579 | IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, | |
580 | ieee802154_dump_iface), | |
581 | }; | |
582 | ||
583 | /* | |
584 | * No need to unregister as family unregistration will do it. | |
585 | */ | |
586 | int nl802154_mac_register(void) | |
587 | { | |
588 | int i; | |
589 | int rc; | |
590 | ||
591 | rc = genl_register_mc_group(&nl802154_family, | |
592 | &ieee802154_coord_mcgrp); | |
593 | if (rc) | |
594 | return rc; | |
595 | ||
596 | rc = genl_register_mc_group(&nl802154_family, | |
597 | &ieee802154_beacon_mcgrp); | |
598 | if (rc) | |
599 | return rc; | |
600 | ||
601 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { | |
602 | rc = genl_register_ops(&nl802154_family, | |
603 | &ieee802154_coordinator_ops[i]); | |
604 | if (rc) | |
605 | return rc; | |
606 | } | |
607 | ||
608 | return 0; | |
609 | } |