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78fe738d DES |
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 | ||
5a0e3ad6 | 25 | #include <linux/gfp.h> |
78fe738d DES |
26 | #include <linux/kernel.h> |
27 | #include <linux/if_arp.h> | |
28 | #include <linux/netdevice.h> | |
29 | #include <net/netlink.h> | |
30 | #include <net/genetlink.h> | |
31 | #include <net/sock.h> | |
32 | #include <linux/nl802154.h> | |
bc3b2d7f | 33 | #include <linux/export.h> |
78fe738d DES |
34 | #include <net/af_ieee802154.h> |
35 | #include <net/nl802154.h> | |
36 | #include <net/ieee802154.h> | |
37 | #include <net/ieee802154_netdev.h> | |
0a868b26 | 38 | #include <net/wpan-phy.h> |
78fe738d DES |
39 | |
40 | #include "ieee802154.h" | |
41 | ||
42 | static struct genl_multicast_group ieee802154_coord_mcgrp = { | |
43 | .name = IEEE802154_MCAST_COORD_NAME, | |
44 | }; | |
45 | ||
46 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { | |
47 | .name = IEEE802154_MCAST_BEACON_NAME, | |
48 | }; | |
49 | ||
50 | int ieee802154_nl_assoc_indic(struct net_device *dev, | |
51 | struct ieee802154_addr *addr, u8 cap) | |
52 | { | |
53 | struct sk_buff *msg; | |
54 | ||
55 | pr_debug("%s\n", __func__); | |
56 | ||
57 | if (addr->addr_type != IEEE802154_ADDR_LONG) { | |
58 | pr_err("%s: received non-long source address!\n", __func__); | |
59 | return -EINVAL; | |
60 | } | |
61 | ||
62 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); | |
63 | if (!msg) | |
64 | return -ENOBUFS; | |
65 | ||
66 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
67 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
68 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
69 | dev->dev_addr); | |
70 | ||
71 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
72 | addr->hwaddr); | |
73 | ||
74 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); | |
75 | ||
76 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
77 | ||
78 | nla_put_failure: | |
79 | nlmsg_free(msg); | |
80 | return -ENOBUFS; | |
81 | } | |
82 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); | |
83 | ||
84 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, | |
85 | u8 status) | |
86 | { | |
87 | struct sk_buff *msg; | |
88 | ||
89 | pr_debug("%s\n", __func__); | |
90 | ||
91 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); | |
92 | if (!msg) | |
93 | return -ENOBUFS; | |
94 | ||
95 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
96 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
97 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
98 | dev->dev_addr); | |
99 | ||
100 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); | |
101 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
102 | ||
103 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
104 | ||
105 | nla_put_failure: | |
106 | nlmsg_free(msg); | |
107 | return -ENOBUFS; | |
108 | } | |
109 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); | |
110 | ||
111 | int ieee802154_nl_disassoc_indic(struct net_device *dev, | |
112 | struct ieee802154_addr *addr, u8 reason) | |
113 | { | |
114 | struct sk_buff *msg; | |
115 | ||
116 | pr_debug("%s\n", __func__); | |
117 | ||
118 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); | |
119 | if (!msg) | |
120 | return -ENOBUFS; | |
121 | ||
122 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
123 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
124 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
125 | dev->dev_addr); | |
126 | ||
127 | if (addr->addr_type == IEEE802154_ADDR_LONG) | |
128 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
129 | addr->hwaddr); | |
130 | else | |
131 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, | |
132 | addr->short_addr); | |
133 | ||
134 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); | |
135 | ||
136 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
137 | ||
138 | nla_put_failure: | |
139 | nlmsg_free(msg); | |
140 | return -ENOBUFS; | |
141 | } | |
142 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); | |
143 | ||
144 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) | |
145 | { | |
146 | struct sk_buff *msg; | |
147 | ||
148 | pr_debug("%s\n", __func__); | |
149 | ||
150 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); | |
151 | if (!msg) | |
152 | return -ENOBUFS; | |
153 | ||
154 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
155 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
156 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
157 | dev->dev_addr); | |
158 | ||
159 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
160 | ||
161 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
162 | ||
163 | nla_put_failure: | |
164 | nlmsg_free(msg); | |
165 | return -ENOBUFS; | |
166 | } | |
167 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); | |
168 | ||
169 | int ieee802154_nl_beacon_indic(struct net_device *dev, | |
170 | u16 panid, u16 coord_addr) | |
171 | { | |
172 | struct sk_buff *msg; | |
173 | ||
174 | pr_debug("%s\n", __func__); | |
175 | ||
176 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); | |
177 | if (!msg) | |
178 | return -ENOBUFS; | |
179 | ||
180 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
181 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
182 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
183 | dev->dev_addr); | |
184 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); | |
185 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); | |
186 | ||
187 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
188 | ||
189 | nla_put_failure: | |
190 | nlmsg_free(msg); | |
191 | return -ENOBUFS; | |
192 | } | |
193 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); | |
194 | ||
195 | int ieee802154_nl_scan_confirm(struct net_device *dev, | |
196 | u8 status, u8 scan_type, u32 unscanned, u8 page, | |
197 | u8 *edl/* , struct list_head *pan_desc_list */) | |
198 | { | |
199 | struct sk_buff *msg; | |
200 | ||
201 | pr_debug("%s\n", __func__); | |
202 | ||
203 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); | |
204 | if (!msg) | |
205 | return -ENOBUFS; | |
206 | ||
207 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
208 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
209 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
210 | dev->dev_addr); | |
211 | ||
212 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
213 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); | |
214 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); | |
215 | NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page); | |
216 | ||
217 | if (edl) | |
218 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); | |
219 | ||
220 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
221 | ||
222 | nla_put_failure: | |
223 | nlmsg_free(msg); | |
224 | return -ENOBUFS; | |
225 | } | |
226 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); | |
227 | ||
228 | int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) | |
229 | { | |
230 | struct sk_buff *msg; | |
231 | ||
232 | pr_debug("%s\n", __func__); | |
233 | ||
234 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
235 | if (!msg) | |
236 | return -ENOBUFS; | |
237 | ||
238 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
239 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
240 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
241 | dev->dev_addr); | |
242 | ||
243 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
244 | ||
245 | return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id); | |
246 | ||
247 | nla_put_failure: | |
248 | nlmsg_free(msg); | |
249 | return -ENOBUFS; | |
250 | } | |
251 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); | |
252 | ||
253 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid, | |
254 | u32 seq, int flags, struct net_device *dev) | |
255 | { | |
256 | void *hdr; | |
0a868b26 | 257 | struct wpan_phy *phy; |
78fe738d DES |
258 | |
259 | pr_debug("%s\n", __func__); | |
260 | ||
261 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, | |
262 | IEEE802154_LIST_IFACE); | |
263 | if (!hdr) | |
264 | goto out; | |
265 | ||
0a868b26 DES |
266 | phy = ieee802154_mlme_ops(dev)->get_phy(dev); |
267 | BUG_ON(!phy); | |
268 | ||
78fe738d | 269 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); |
0a868b26 | 270 | NLA_PUT_STRING(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)); |
78fe738d DES |
271 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); |
272 | ||
273 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
274 | dev->dev_addr); | |
275 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, | |
276 | ieee802154_mlme_ops(dev)->get_short_addr(dev)); | |
277 | NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID, | |
278 | ieee802154_mlme_ops(dev)->get_pan_id(dev)); | |
0a868b26 | 279 | wpan_phy_put(phy); |
78fe738d DES |
280 | return genlmsg_end(msg, hdr); |
281 | ||
282 | nla_put_failure: | |
0a868b26 | 283 | wpan_phy_put(phy); |
78fe738d DES |
284 | genlmsg_cancel(msg, hdr); |
285 | out: | |
286 | return -EMSGSIZE; | |
287 | } | |
288 | ||
289 | /* Requests from userspace */ | |
290 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
291 | { | |
292 | struct net_device *dev; | |
293 | ||
294 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
295 | char name[IFNAMSIZ + 1]; | |
296 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], | |
297 | sizeof(name)); | |
298 | dev = dev_get_by_name(&init_net, name); | |
299 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) | |
300 | dev = dev_get_by_index(&init_net, | |
301 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
302 | else | |
303 | return NULL; | |
304 | ||
305 | if (!dev) | |
306 | return NULL; | |
307 | ||
308 | if (dev->type != ARPHRD_IEEE802154) { | |
309 | dev_put(dev); | |
310 | return NULL; | |
311 | } | |
312 | ||
313 | return dev; | |
314 | } | |
315 | ||
316 | static int ieee802154_associate_req(struct sk_buff *skb, | |
317 | struct genl_info *info) | |
318 | { | |
319 | struct net_device *dev; | |
320 | struct ieee802154_addr addr; | |
321 | u8 page; | |
322 | int ret = -EINVAL; | |
323 | ||
324 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
325 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
326 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
327 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
328 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
329 | return -EINVAL; | |
330 | ||
331 | dev = ieee802154_nl_get_dev(info); | |
332 | if (!dev) | |
333 | return -ENODEV; | |
334 | ||
335 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
336 | addr.addr_type = IEEE802154_ADDR_LONG; | |
337 | nla_memcpy(addr.hwaddr, | |
338 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], | |
339 | IEEE802154_ADDR_LEN); | |
340 | } else { | |
341 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
342 | addr.short_addr = nla_get_u16( | |
343 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
344 | } | |
345 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
346 | ||
347 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
348 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
349 | else | |
350 | page = 0; | |
351 | ||
352 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, | |
353 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
354 | page, | |
355 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); | |
356 | ||
357 | dev_put(dev); | |
358 | return ret; | |
359 | } | |
360 | ||
361 | static int ieee802154_associate_resp(struct sk_buff *skb, | |
362 | struct genl_info *info) | |
363 | { | |
364 | struct net_device *dev; | |
365 | struct ieee802154_addr addr; | |
366 | int ret = -EINVAL; | |
367 | ||
368 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
369 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
370 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
371 | return -EINVAL; | |
372 | ||
373 | dev = ieee802154_nl_get_dev(info); | |
374 | if (!dev) | |
375 | return -ENODEV; | |
376 | ||
377 | addr.addr_type = IEEE802154_ADDR_LONG; | |
378 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
379 | IEEE802154_ADDR_LEN); | |
380 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
381 | ||
382 | ||
383 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
384 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), | |
385 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); | |
386 | ||
387 | dev_put(dev); | |
388 | return ret; | |
389 | } | |
390 | ||
391 | static int ieee802154_disassociate_req(struct sk_buff *skb, | |
392 | struct genl_info *info) | |
393 | { | |
394 | struct net_device *dev; | |
395 | struct ieee802154_addr addr; | |
396 | int ret = -EINVAL; | |
397 | ||
398 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
399 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || | |
400 | !info->attrs[IEEE802154_ATTR_REASON]) | |
401 | return -EINVAL; | |
402 | ||
403 | dev = ieee802154_nl_get_dev(info); | |
404 | if (!dev) | |
405 | return -ENODEV; | |
406 | ||
407 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
408 | addr.addr_type = IEEE802154_ADDR_LONG; | |
409 | nla_memcpy(addr.hwaddr, | |
410 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
411 | IEEE802154_ADDR_LEN); | |
412 | } else { | |
413 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
414 | addr.short_addr = nla_get_u16( | |
415 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); | |
416 | } | |
417 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
418 | ||
419 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
420 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
421 | ||
422 | dev_put(dev); | |
423 | return ret; | |
424 | } | |
425 | ||
426 | /* | |
427 | * PANid, channel, beacon_order = 15, superframe_order = 15, | |
428 | * PAN_coordinator, battery_life_extension = 0, | |
429 | * coord_realignment = 0, security_enable = 0 | |
430 | */ | |
431 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) | |
432 | { | |
433 | struct net_device *dev; | |
434 | struct ieee802154_addr addr; | |
435 | ||
436 | u8 channel, bcn_ord, sf_ord; | |
437 | u8 page; | |
438 | int pan_coord, blx, coord_realign; | |
439 | int ret; | |
440 | ||
441 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
442 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
443 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
444 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
445 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
446 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
447 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
448 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
449 | ) | |
450 | return -EINVAL; | |
451 | ||
452 | dev = ieee802154_nl_get_dev(info); | |
453 | if (!dev) | |
454 | return -ENODEV; | |
455 | ||
456 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
457 | addr.short_addr = nla_get_u16( | |
458 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
459 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
460 | ||
461 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
462 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
463 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
464 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
465 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
466 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
467 | ||
468 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
469 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
470 | else | |
471 | page = 0; | |
472 | ||
473 | ||
474 | if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { | |
475 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); | |
476 | dev_put(dev); | |
477 | return -EINVAL; | |
478 | } | |
479 | ||
480 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, | |
481 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
482 | ||
483 | dev_put(dev); | |
484 | return ret; | |
485 | } | |
486 | ||
487 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) | |
488 | { | |
489 | struct net_device *dev; | |
490 | int ret; | |
491 | u8 type; | |
492 | u32 channels; | |
493 | u8 duration; | |
494 | u8 page; | |
495 | ||
496 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
497 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
498 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
499 | return -EINVAL; | |
500 | ||
501 | dev = ieee802154_nl_get_dev(info); | |
502 | if (!dev) | |
503 | return -ENODEV; | |
504 | ||
505 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
506 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
507 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
508 | ||
509 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
510 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
511 | else | |
512 | page = 0; | |
513 | ||
514 | ||
515 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page, | |
516 | duration); | |
517 | ||
518 | dev_put(dev); | |
519 | return ret; | |
520 | } | |
521 | ||
522 | static int ieee802154_list_iface(struct sk_buff *skb, | |
523 | struct genl_info *info) | |
524 | { | |
525 | /* Request for interface name, index, type, IEEE address, | |
526 | PAN Id, short address */ | |
527 | struct sk_buff *msg; | |
528 | struct net_device *dev = NULL; | |
529 | int rc = -ENOBUFS; | |
530 | ||
531 | pr_debug("%s\n", __func__); | |
532 | ||
533 | dev = ieee802154_nl_get_dev(info); | |
534 | if (!dev) | |
535 | return -ENODEV; | |
536 | ||
537 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
538 | if (!msg) | |
539 | goto out_dev; | |
540 | ||
541 | rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq, | |
542 | 0, dev); | |
543 | if (rc < 0) | |
544 | goto out_free; | |
545 | ||
546 | dev_put(dev); | |
547 | ||
548 | return genlmsg_reply(msg, info); | |
549 | out_free: | |
550 | nlmsg_free(msg); | |
551 | out_dev: | |
552 | dev_put(dev); | |
553 | return rc; | |
554 | ||
555 | } | |
556 | ||
557 | static int ieee802154_dump_iface(struct sk_buff *skb, | |
558 | struct netlink_callback *cb) | |
559 | { | |
560 | struct net *net = sock_net(skb->sk); | |
561 | struct net_device *dev; | |
562 | int idx; | |
563 | int s_idx = cb->args[0]; | |
564 | ||
565 | pr_debug("%s\n", __func__); | |
566 | ||
567 | idx = 0; | |
568 | for_each_netdev(net, dev) { | |
569 | if (idx < s_idx || (dev->type != ARPHRD_IEEE802154)) | |
570 | goto cont; | |
571 | ||
572 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid, | |
573 | cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0) | |
574 | break; | |
575 | cont: | |
576 | idx++; | |
577 | } | |
578 | cb->args[0] = idx; | |
579 | ||
580 | return skb->len; | |
581 | } | |
582 | ||
583 | static struct genl_ops ieee802154_coordinator_ops[] = { | |
584 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), | |
585 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), | |
586 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), | |
587 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), | |
588 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), | |
589 | IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, | |
590 | ieee802154_dump_iface), | |
591 | }; | |
592 | ||
593 | /* | |
594 | * No need to unregister as family unregistration will do it. | |
595 | */ | |
596 | int nl802154_mac_register(void) | |
597 | { | |
598 | int i; | |
599 | int rc; | |
600 | ||
601 | rc = genl_register_mc_group(&nl802154_family, | |
602 | &ieee802154_coord_mcgrp); | |
603 | if (rc) | |
604 | return rc; | |
605 | ||
606 | rc = genl_register_mc_group(&nl802154_family, | |
607 | &ieee802154_beacon_mcgrp); | |
608 | if (rc) | |
609 | return rc; | |
610 | ||
611 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { | |
612 | rc = genl_register_ops(&nl802154_family, | |
613 | &ieee802154_coordinator_ops[i]); | |
614 | if (rc) | |
615 | return rc; | |
616 | } | |
617 | ||
618 | return 0; | |
619 | } |