Commit | Line | Data |
---|---|---|
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> | |
8e753dd0 | 22 | * Maxim Osipov <maxim.osipov@siemens.com> |
2c21d115 SL |
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> | |
8e753dd0 | 30 | #include <net/sock.h> |
2c21d115 | 31 | #include <linux/nl802154.h> |
f0166e5e DES |
32 | #include <net/af_ieee802154.h> |
33 | #include <net/nl802154.h> | |
acb8aacd | 34 | #include <net/ieee802154.h> |
f0166e5e | 35 | #include <net/ieee802154_netdev.h> |
2c21d115 SL |
36 | |
37 | static unsigned int ieee802154_seq_num; | |
c4835d81 | 38 | static DEFINE_SPINLOCK(ieee802154_seq_lock); |
2c21d115 SL |
39 | |
40 | static struct genl_family ieee802154_coordinator_family = { | |
41 | .id = GENL_ID_GENERATE, | |
42 | .hdrsize = 0, | |
43 | .name = IEEE802154_NL_NAME, | |
44 | .version = 1, | |
45 | .maxattr = IEEE802154_ATTR_MAX, | |
46 | }; | |
47 | ||
48 | static struct genl_multicast_group ieee802154_coord_mcgrp = { | |
49 | .name = IEEE802154_MCAST_COORD_NAME, | |
50 | }; | |
51 | ||
52 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { | |
53 | .name = IEEE802154_MCAST_BEACON_NAME, | |
54 | }; | |
55 | ||
56 | /* Requests to userspace */ | |
57 | static struct sk_buff *ieee802154_nl_create(int flags, u8 req) | |
58 | { | |
59 | void *hdr; | |
60 | struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); | |
c4835d81 | 61 | unsigned long f; |
2c21d115 SL |
62 | |
63 | if (!msg) | |
64 | return NULL; | |
65 | ||
c4835d81 | 66 | spin_lock_irqsave(&ieee802154_seq_lock, f); |
2c21d115 SL |
67 | hdr = genlmsg_put(msg, 0, ieee802154_seq_num++, |
68 | &ieee802154_coordinator_family, flags, req); | |
c4835d81 | 69 | spin_unlock_irqrestore(&ieee802154_seq_lock, f); |
2c21d115 SL |
70 | if (!hdr) { |
71 | nlmsg_free(msg); | |
72 | return NULL; | |
73 | } | |
74 | ||
75 | return msg; | |
76 | } | |
77 | ||
78 | static int ieee802154_nl_finish(struct sk_buff *msg) | |
79 | { | |
80 | /* XXX: nlh is right at the start of msg */ | |
81 | void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); | |
82 | ||
8e753dd0 | 83 | if (genlmsg_end(msg, hdr) < 0) |
2c21d115 SL |
84 | goto out; |
85 | ||
86 | return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id, | |
87 | GFP_ATOMIC); | |
88 | out: | |
89 | nlmsg_free(msg); | |
90 | return -ENOBUFS; | |
91 | } | |
92 | ||
93 | int ieee802154_nl_assoc_indic(struct net_device *dev, | |
94 | struct ieee802154_addr *addr, u8 cap) | |
95 | { | |
96 | struct sk_buff *msg; | |
97 | ||
98 | pr_debug("%s\n", __func__); | |
99 | ||
100 | if (addr->addr_type != IEEE802154_ADDR_LONG) { | |
101 | pr_err("%s: received non-long source address!\n", __func__); | |
102 | return -EINVAL; | |
103 | } | |
104 | ||
105 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); | |
106 | if (!msg) | |
107 | return -ENOBUFS; | |
108 | ||
109 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
110 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
111 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
112 | dev->dev_addr); | |
113 | ||
114 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
115 | addr->hwaddr); | |
116 | ||
117 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); | |
118 | ||
119 | return ieee802154_nl_finish(msg); | |
120 | ||
121 | nla_put_failure: | |
122 | nlmsg_free(msg); | |
123 | return -ENOBUFS; | |
124 | } | |
125 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); | |
126 | ||
127 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, | |
128 | u8 status) | |
129 | { | |
130 | struct sk_buff *msg; | |
131 | ||
132 | pr_debug("%s\n", __func__); | |
133 | ||
134 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); | |
135 | if (!msg) | |
136 | return -ENOBUFS; | |
137 | ||
138 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
139 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
140 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
141 | dev->dev_addr); | |
142 | ||
143 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); | |
144 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
145 | ||
146 | return ieee802154_nl_finish(msg); | |
147 | ||
148 | nla_put_failure: | |
149 | nlmsg_free(msg); | |
150 | return -ENOBUFS; | |
151 | } | |
152 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); | |
153 | ||
154 | int ieee802154_nl_disassoc_indic(struct net_device *dev, | |
155 | struct ieee802154_addr *addr, u8 reason) | |
156 | { | |
157 | struct sk_buff *msg; | |
158 | ||
159 | pr_debug("%s\n", __func__); | |
160 | ||
161 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); | |
162 | if (!msg) | |
163 | return -ENOBUFS; | |
164 | ||
165 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
166 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
167 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
168 | dev->dev_addr); | |
169 | ||
170 | if (addr->addr_type == IEEE802154_ADDR_LONG) | |
171 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
172 | addr->hwaddr); | |
173 | else | |
174 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, | |
175 | addr->short_addr); | |
176 | ||
177 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); | |
178 | ||
179 | return ieee802154_nl_finish(msg); | |
180 | ||
181 | nla_put_failure: | |
182 | nlmsg_free(msg); | |
183 | return -ENOBUFS; | |
184 | } | |
185 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); | |
186 | ||
187 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) | |
188 | { | |
189 | struct sk_buff *msg; | |
190 | ||
191 | pr_debug("%s\n", __func__); | |
192 | ||
193 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); | |
194 | if (!msg) | |
195 | return -ENOBUFS; | |
196 | ||
197 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
198 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
199 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
200 | dev->dev_addr); | |
201 | ||
202 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
203 | ||
204 | return ieee802154_nl_finish(msg); | |
205 | ||
206 | nla_put_failure: | |
207 | nlmsg_free(msg); | |
208 | return -ENOBUFS; | |
209 | } | |
210 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); | |
211 | ||
212 | int ieee802154_nl_beacon_indic(struct net_device *dev, | |
213 | u16 panid, u16 coord_addr) | |
214 | { | |
215 | struct sk_buff *msg; | |
216 | ||
217 | pr_debug("%s\n", __func__); | |
218 | ||
219 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); | |
220 | if (!msg) | |
221 | return -ENOBUFS; | |
222 | ||
223 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
224 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
225 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
226 | dev->dev_addr); | |
227 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); | |
228 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); | |
229 | ||
230 | return ieee802154_nl_finish(msg); | |
231 | ||
232 | nla_put_failure: | |
233 | nlmsg_free(msg); | |
234 | return -ENOBUFS; | |
235 | } | |
236 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); | |
237 | ||
238 | int ieee802154_nl_scan_confirm(struct net_device *dev, | |
16eea493 | 239 | u8 status, u8 scan_type, u32 unscanned, u8 page, |
2c21d115 SL |
240 | u8 *edl/* , struct list_head *pan_desc_list */) |
241 | { | |
242 | struct sk_buff *msg; | |
243 | ||
244 | pr_debug("%s\n", __func__); | |
245 | ||
246 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); | |
247 | if (!msg) | |
248 | return -ENOBUFS; | |
249 | ||
250 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
251 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
252 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
253 | dev->dev_addr); | |
254 | ||
255 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
256 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); | |
257 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); | |
16eea493 | 258 | NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page); |
2c21d115 SL |
259 | |
260 | if (edl) | |
261 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); | |
262 | ||
263 | return ieee802154_nl_finish(msg); | |
264 | ||
265 | nla_put_failure: | |
266 | nlmsg_free(msg); | |
267 | return -ENOBUFS; | |
268 | } | |
269 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); | |
270 | ||
acb8aacd DB |
271 | int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) |
272 | { | |
273 | struct sk_buff *msg; | |
274 | ||
275 | pr_debug("%s\n", __func__); | |
276 | ||
277 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
278 | if (!msg) | |
279 | return -ENOBUFS; | |
280 | ||
281 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
282 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
283 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
284 | dev->dev_addr); | |
285 | ||
286 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
287 | ||
288 | return ieee802154_nl_finish(msg); | |
289 | ||
290 | nla_put_failure: | |
291 | nlmsg_free(msg); | |
292 | return -ENOBUFS; | |
293 | } | |
294 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); | |
295 | ||
8e753dd0 DB |
296 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid, |
297 | u32 seq, int flags, struct net_device *dev) | |
298 | { | |
299 | void *hdr; | |
300 | ||
301 | pr_debug("%s\n", __func__); | |
302 | ||
303 | hdr = genlmsg_put(msg, 0, seq, &ieee802154_coordinator_family, flags, | |
304 | IEEE802154_LIST_IFACE); | |
305 | if (!hdr) | |
306 | goto out; | |
307 | ||
308 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
309 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
310 | ||
311 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
312 | dev->dev_addr); | |
313 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, | |
314 | ieee802154_mlme_ops(dev)->get_short_addr(dev)); | |
315 | NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID, | |
316 | ieee802154_mlme_ops(dev)->get_pan_id(dev)); | |
317 | return genlmsg_end(msg, hdr); | |
318 | ||
319 | nla_put_failure: | |
320 | genlmsg_cancel(msg, hdr); | |
321 | out: | |
322 | return -EMSGSIZE; | |
323 | } | |
324 | ||
2c21d115 SL |
325 | /* Requests from userspace */ |
326 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
327 | { | |
328 | struct net_device *dev; | |
329 | ||
330 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
331 | char name[IFNAMSIZ + 1]; | |
332 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], | |
333 | sizeof(name)); | |
334 | dev = dev_get_by_name(&init_net, name); | |
335 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) | |
336 | dev = dev_get_by_index(&init_net, | |
8e753dd0 | 337 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); |
2c21d115 SL |
338 | else |
339 | return NULL; | |
340 | ||
932c1329 DES |
341 | if (!dev) |
342 | return NULL; | |
343 | ||
2c21d115 SL |
344 | if (dev->type != ARPHRD_IEEE802154) { |
345 | dev_put(dev); | |
346 | return NULL; | |
347 | } | |
348 | ||
349 | return dev; | |
350 | } | |
351 | ||
352 | static int ieee802154_associate_req(struct sk_buff *skb, | |
353 | struct genl_info *info) | |
354 | { | |
355 | struct net_device *dev; | |
356 | struct ieee802154_addr addr; | |
16eea493 | 357 | u8 page; |
2c21d115 SL |
358 | int ret = -EINVAL; |
359 | ||
360 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
361 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
362 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
363 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
364 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
365 | return -EINVAL; | |
366 | ||
367 | dev = ieee802154_nl_get_dev(info); | |
368 | if (!dev) | |
369 | return -ENODEV; | |
370 | ||
371 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
372 | addr.addr_type = IEEE802154_ADDR_LONG; | |
373 | nla_memcpy(addr.hwaddr, | |
374 | info->attrs[IEEE802154_ATTR_COORD_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_COORD_SHORT_ADDR]); | |
380 | } | |
381 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
382 | ||
16eea493 DES |
383 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
384 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
385 | else | |
386 | page = 0; | |
387 | ||
2c21d115 SL |
388 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, |
389 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
16eea493 | 390 | page, |
2c21d115 SL |
391 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); |
392 | ||
393 | dev_put(dev); | |
394 | return ret; | |
395 | } | |
396 | ||
397 | static int ieee802154_associate_resp(struct sk_buff *skb, | |
398 | struct genl_info *info) | |
399 | { | |
400 | struct net_device *dev; | |
401 | struct ieee802154_addr addr; | |
402 | int ret = -EINVAL; | |
403 | ||
404 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
405 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
406 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
407 | return -EINVAL; | |
408 | ||
409 | dev = ieee802154_nl_get_dev(info); | |
410 | if (!dev) | |
411 | return -ENODEV; | |
412 | ||
413 | addr.addr_type = IEEE802154_ADDR_LONG; | |
414 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
415 | IEEE802154_ADDR_LEN); | |
416 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
417 | ||
418 | ||
419 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
420 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), | |
421 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); | |
422 | ||
423 | dev_put(dev); | |
424 | return ret; | |
425 | } | |
426 | ||
427 | static int ieee802154_disassociate_req(struct sk_buff *skb, | |
428 | struct genl_info *info) | |
429 | { | |
430 | struct net_device *dev; | |
431 | struct ieee802154_addr addr; | |
432 | int ret = -EINVAL; | |
433 | ||
434 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
435 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || | |
436 | !info->attrs[IEEE802154_ATTR_REASON]) | |
437 | return -EINVAL; | |
438 | ||
439 | dev = ieee802154_nl_get_dev(info); | |
440 | if (!dev) | |
441 | return -ENODEV; | |
442 | ||
443 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
444 | addr.addr_type = IEEE802154_ADDR_LONG; | |
445 | nla_memcpy(addr.hwaddr, | |
446 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
447 | IEEE802154_ADDR_LEN); | |
448 | } else { | |
449 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
450 | addr.short_addr = nla_get_u16( | |
451 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); | |
452 | } | |
453 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
454 | ||
455 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
456 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
457 | ||
458 | dev_put(dev); | |
459 | return ret; | |
460 | } | |
461 | ||
462 | /* | |
463 | * PANid, channel, beacon_order = 15, superframe_order = 15, | |
464 | * PAN_coordinator, battery_life_extension = 0, | |
465 | * coord_realignment = 0, security_enable = 0 | |
466 | */ | |
467 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) | |
468 | { | |
469 | struct net_device *dev; | |
470 | struct ieee802154_addr addr; | |
471 | ||
472 | u8 channel, bcn_ord, sf_ord; | |
16eea493 | 473 | u8 page; |
2c21d115 SL |
474 | int pan_coord, blx, coord_realign; |
475 | int ret; | |
476 | ||
477 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
478 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
479 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
480 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
481 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
482 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
483 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
484 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
485 | ) | |
486 | return -EINVAL; | |
487 | ||
488 | dev = ieee802154_nl_get_dev(info); | |
489 | if (!dev) | |
490 | return -ENODEV; | |
491 | ||
492 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
493 | addr.short_addr = nla_get_u16( | |
494 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
495 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
496 | ||
497 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
498 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
499 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
500 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
501 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
502 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
503 | ||
16eea493 DES |
504 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
505 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
506 | else | |
507 | page = 0; | |
508 | ||
509 | ||
acb8aacd DB |
510 | if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { |
511 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); | |
512 | dev_put(dev); | |
513 | return -EINVAL; | |
514 | } | |
515 | ||
16eea493 | 516 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
2c21d115 SL |
517 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); |
518 | ||
519 | dev_put(dev); | |
520 | return ret; | |
521 | } | |
522 | ||
523 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) | |
524 | { | |
525 | struct net_device *dev; | |
526 | int ret; | |
527 | u8 type; | |
528 | u32 channels; | |
529 | u8 duration; | |
16eea493 | 530 | u8 page; |
2c21d115 SL |
531 | |
532 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
533 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
534 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
535 | return -EINVAL; | |
536 | ||
537 | dev = ieee802154_nl_get_dev(info); | |
538 | if (!dev) | |
539 | return -ENODEV; | |
540 | ||
541 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
542 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
543 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
544 | ||
16eea493 DES |
545 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
546 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
547 | else | |
548 | page = 0; | |
549 | ||
550 | ||
551 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page, | |
2c21d115 SL |
552 | duration); |
553 | ||
554 | dev_put(dev); | |
555 | return ret; | |
556 | } | |
557 | ||
8e753dd0 DB |
558 | static int ieee802154_list_iface(struct sk_buff *skb, |
559 | struct genl_info *info) | |
560 | { | |
561 | /* Request for interface name, index, type, IEEE address, | |
562 | PAN Id, short address */ | |
563 | struct sk_buff *msg; | |
564 | struct net_device *dev = NULL; | |
565 | int rc = -ENOBUFS; | |
566 | ||
567 | pr_debug("%s\n", __func__); | |
568 | ||
569 | dev = ieee802154_nl_get_dev(info); | |
570 | if (!dev) | |
571 | return -ENODEV; | |
572 | ||
573 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
574 | if (!msg) | |
575 | goto out_dev; | |
576 | ||
577 | rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq, | |
578 | 0, dev); | |
579 | if (rc < 0) | |
580 | goto out_free; | |
581 | ||
582 | dev_put(dev); | |
583 | ||
584 | return genlmsg_unicast(&init_net, msg, info->snd_pid); | |
585 | out_free: | |
586 | nlmsg_free(msg); | |
587 | out_dev: | |
588 | dev_put(dev); | |
589 | return rc; | |
590 | ||
591 | } | |
592 | ||
593 | static int ieee802154_dump_iface(struct sk_buff *skb, | |
594 | struct netlink_callback *cb) | |
595 | { | |
596 | struct net *net = sock_net(skb->sk); | |
597 | struct net_device *dev; | |
598 | int idx; | |
599 | int s_idx = cb->args[0]; | |
600 | ||
601 | pr_debug("%s\n", __func__); | |
602 | ||
603 | idx = 0; | |
604 | for_each_netdev(net, dev) { | |
605 | if (idx < s_idx || (dev->type != ARPHRD_IEEE802154)) | |
606 | goto cont; | |
607 | ||
608 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid, | |
609 | cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0) | |
610 | break; | |
611 | cont: | |
612 | idx++; | |
613 | } | |
614 | cb->args[0] = idx; | |
615 | ||
616 | return skb->len; | |
617 | } | |
618 | ||
2c21d115 SL |
619 | #define IEEE802154_OP(_cmd, _func) \ |
620 | { \ | |
621 | .cmd = _cmd, \ | |
622 | .policy = ieee802154_policy, \ | |
623 | .doit = _func, \ | |
624 | .dumpit = NULL, \ | |
625 | .flags = GENL_ADMIN_PERM, \ | |
626 | } | |
627 | ||
8e753dd0 DB |
628 | #define IEEE802154_DUMP(_cmd, _func, _dump) \ |
629 | { \ | |
630 | .cmd = _cmd, \ | |
631 | .policy = ieee802154_policy, \ | |
632 | .doit = _func, \ | |
633 | .dumpit = _dump, \ | |
634 | } | |
635 | ||
2c21d115 SL |
636 | static struct genl_ops ieee802154_coordinator_ops[] = { |
637 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), | |
638 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), | |
639 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), | |
640 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), | |
641 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), | |
8e753dd0 DB |
642 | IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, |
643 | ieee802154_dump_iface), | |
2c21d115 SL |
644 | }; |
645 | ||
646 | static int __init ieee802154_nl_init(void) | |
647 | { | |
648 | int rc; | |
649 | int i; | |
650 | ||
651 | rc = genl_register_family(&ieee802154_coordinator_family); | |
652 | if (rc) | |
653 | goto fail; | |
654 | ||
655 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
656 | &ieee802154_coord_mcgrp); | |
657 | if (rc) | |
658 | goto fail; | |
659 | ||
660 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
661 | &ieee802154_beacon_mcgrp); | |
662 | if (rc) | |
663 | goto fail; | |
664 | ||
665 | ||
666 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { | |
667 | rc = genl_register_ops(&ieee802154_coordinator_family, | |
668 | &ieee802154_coordinator_ops[i]); | |
669 | if (rc) | |
670 | goto fail; | |
671 | } | |
672 | ||
673 | return 0; | |
674 | ||
675 | fail: | |
676 | genl_unregister_family(&ieee802154_coordinator_family); | |
677 | return rc; | |
678 | } | |
679 | module_init(ieee802154_nl_init); | |
680 | ||
681 | static void __exit ieee802154_nl_exit(void) | |
682 | { | |
683 | genl_unregister_family(&ieee802154_coordinator_family); | |
684 | } | |
685 | module_exit(ieee802154_nl_exit); | |
686 | ||
dfd06fe8 DES |
687 | MODULE_LICENSE("GPL v2"); |
688 | MODULE_DESCRIPTION("ieee 802.15.4 configuration interface"); | |
689 |