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