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> | |
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; | |
38 | ||
39 | static struct genl_family ieee802154_coordinator_family = { | |
40 | .id = GENL_ID_GENERATE, | |
41 | .hdrsize = 0, | |
42 | .name = IEEE802154_NL_NAME, | |
43 | .version = 1, | |
44 | .maxattr = IEEE802154_ATTR_MAX, | |
45 | }; | |
46 | ||
47 | static struct genl_multicast_group ieee802154_coord_mcgrp = { | |
48 | .name = IEEE802154_MCAST_COORD_NAME, | |
49 | }; | |
50 | ||
51 | static struct genl_multicast_group ieee802154_beacon_mcgrp = { | |
52 | .name = IEEE802154_MCAST_BEACON_NAME, | |
53 | }; | |
54 | ||
55 | /* Requests to userspace */ | |
56 | static struct sk_buff *ieee802154_nl_create(int flags, u8 req) | |
57 | { | |
58 | void *hdr; | |
59 | struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); | |
60 | ||
61 | if (!msg) | |
62 | return NULL; | |
63 | ||
64 | hdr = genlmsg_put(msg, 0, ieee802154_seq_num++, | |
65 | &ieee802154_coordinator_family, flags, req); | |
66 | if (!hdr) { | |
67 | nlmsg_free(msg); | |
68 | return NULL; | |
69 | } | |
70 | ||
71 | return msg; | |
72 | } | |
73 | ||
74 | static int ieee802154_nl_finish(struct sk_buff *msg) | |
75 | { | |
76 | /* XXX: nlh is right at the start of msg */ | |
77 | void *hdr = genlmsg_data(NLMSG_DATA(msg->data)); | |
78 | ||
8e753dd0 | 79 | if (genlmsg_end(msg, hdr) < 0) |
2c21d115 SL |
80 | goto out; |
81 | ||
82 | return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id, | |
83 | GFP_ATOMIC); | |
84 | out: | |
85 | nlmsg_free(msg); | |
86 | return -ENOBUFS; | |
87 | } | |
88 | ||
89 | int ieee802154_nl_assoc_indic(struct net_device *dev, | |
90 | struct ieee802154_addr *addr, u8 cap) | |
91 | { | |
92 | struct sk_buff *msg; | |
93 | ||
94 | pr_debug("%s\n", __func__); | |
95 | ||
96 | if (addr->addr_type != IEEE802154_ADDR_LONG) { | |
97 | pr_err("%s: received non-long source address!\n", __func__); | |
98 | return -EINVAL; | |
99 | } | |
100 | ||
101 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_INDIC); | |
102 | if (!msg) | |
103 | return -ENOBUFS; | |
104 | ||
105 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
106 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
107 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
108 | dev->dev_addr); | |
109 | ||
110 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
111 | addr->hwaddr); | |
112 | ||
113 | NLA_PUT_U8(msg, IEEE802154_ATTR_CAPABILITY, cap); | |
114 | ||
115 | return ieee802154_nl_finish(msg); | |
116 | ||
117 | nla_put_failure: | |
118 | nlmsg_free(msg); | |
119 | return -ENOBUFS; | |
120 | } | |
121 | EXPORT_SYMBOL(ieee802154_nl_assoc_indic); | |
122 | ||
123 | int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr, | |
124 | u8 status) | |
125 | { | |
126 | struct sk_buff *msg; | |
127 | ||
128 | pr_debug("%s\n", __func__); | |
129 | ||
130 | msg = ieee802154_nl_create(0, IEEE802154_ASSOCIATE_CONF); | |
131 | if (!msg) | |
132 | return -ENOBUFS; | |
133 | ||
134 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
135 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
136 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
137 | dev->dev_addr); | |
138 | ||
139 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr); | |
140 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
141 | ||
142 | return ieee802154_nl_finish(msg); | |
143 | ||
144 | nla_put_failure: | |
145 | nlmsg_free(msg); | |
146 | return -ENOBUFS; | |
147 | } | |
148 | EXPORT_SYMBOL(ieee802154_nl_assoc_confirm); | |
149 | ||
150 | int ieee802154_nl_disassoc_indic(struct net_device *dev, | |
151 | struct ieee802154_addr *addr, u8 reason) | |
152 | { | |
153 | struct sk_buff *msg; | |
154 | ||
155 | pr_debug("%s\n", __func__); | |
156 | ||
157 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_INDIC); | |
158 | if (!msg) | |
159 | return -ENOBUFS; | |
160 | ||
161 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
162 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
163 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
164 | dev->dev_addr); | |
165 | ||
166 | if (addr->addr_type == IEEE802154_ADDR_LONG) | |
167 | NLA_PUT(msg, IEEE802154_ATTR_SRC_HW_ADDR, IEEE802154_ADDR_LEN, | |
168 | addr->hwaddr); | |
169 | else | |
170 | NLA_PUT_U16(msg, IEEE802154_ATTR_SRC_SHORT_ADDR, | |
171 | addr->short_addr); | |
172 | ||
173 | NLA_PUT_U8(msg, IEEE802154_ATTR_REASON, reason); | |
174 | ||
175 | return ieee802154_nl_finish(msg); | |
176 | ||
177 | nla_put_failure: | |
178 | nlmsg_free(msg); | |
179 | return -ENOBUFS; | |
180 | } | |
181 | EXPORT_SYMBOL(ieee802154_nl_disassoc_indic); | |
182 | ||
183 | int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status) | |
184 | { | |
185 | struct sk_buff *msg; | |
186 | ||
187 | pr_debug("%s\n", __func__); | |
188 | ||
189 | msg = ieee802154_nl_create(0, IEEE802154_DISASSOCIATE_CONF); | |
190 | if (!msg) | |
191 | return -ENOBUFS; | |
192 | ||
193 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
194 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
195 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
196 | dev->dev_addr); | |
197 | ||
198 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
199 | ||
200 | return ieee802154_nl_finish(msg); | |
201 | ||
202 | nla_put_failure: | |
203 | nlmsg_free(msg); | |
204 | return -ENOBUFS; | |
205 | } | |
206 | EXPORT_SYMBOL(ieee802154_nl_disassoc_confirm); | |
207 | ||
208 | int ieee802154_nl_beacon_indic(struct net_device *dev, | |
209 | u16 panid, u16 coord_addr) | |
210 | { | |
211 | struct sk_buff *msg; | |
212 | ||
213 | pr_debug("%s\n", __func__); | |
214 | ||
215 | msg = ieee802154_nl_create(0, IEEE802154_BEACON_NOTIFY_INDIC); | |
216 | if (!msg) | |
217 | return -ENOBUFS; | |
218 | ||
219 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
220 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
221 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
222 | dev->dev_addr); | |
223 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr); | |
224 | NLA_PUT_U16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid); | |
225 | ||
226 | return ieee802154_nl_finish(msg); | |
227 | ||
228 | nla_put_failure: | |
229 | nlmsg_free(msg); | |
230 | return -ENOBUFS; | |
231 | } | |
232 | EXPORT_SYMBOL(ieee802154_nl_beacon_indic); | |
233 | ||
234 | int ieee802154_nl_scan_confirm(struct net_device *dev, | |
16eea493 | 235 | u8 status, u8 scan_type, u32 unscanned, u8 page, |
2c21d115 SL |
236 | u8 *edl/* , struct list_head *pan_desc_list */) |
237 | { | |
238 | struct sk_buff *msg; | |
239 | ||
240 | pr_debug("%s\n", __func__); | |
241 | ||
242 | msg = ieee802154_nl_create(0, IEEE802154_SCAN_CONF); | |
243 | if (!msg) | |
244 | return -ENOBUFS; | |
245 | ||
246 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
247 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
248 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
249 | dev->dev_addr); | |
250 | ||
251 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
252 | NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type); | |
253 | NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned); | |
16eea493 | 254 | NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page); |
2c21d115 SL |
255 | |
256 | if (edl) | |
257 | NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl); | |
258 | ||
259 | return ieee802154_nl_finish(msg); | |
260 | ||
261 | nla_put_failure: | |
262 | nlmsg_free(msg); | |
263 | return -ENOBUFS; | |
264 | } | |
265 | EXPORT_SYMBOL(ieee802154_nl_scan_confirm); | |
266 | ||
acb8aacd DB |
267 | int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) |
268 | { | |
269 | struct sk_buff *msg; | |
270 | ||
271 | pr_debug("%s\n", __func__); | |
272 | ||
273 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
274 | if (!msg) | |
275 | return -ENOBUFS; | |
276 | ||
277 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
278 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
279 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
280 | dev->dev_addr); | |
281 | ||
282 | NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status); | |
283 | ||
284 | return ieee802154_nl_finish(msg); | |
285 | ||
286 | nla_put_failure: | |
287 | nlmsg_free(msg); | |
288 | return -ENOBUFS; | |
289 | } | |
290 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); | |
291 | ||
8e753dd0 DB |
292 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid, |
293 | u32 seq, int flags, struct net_device *dev) | |
294 | { | |
295 | void *hdr; | |
296 | ||
297 | pr_debug("%s\n", __func__); | |
298 | ||
299 | hdr = genlmsg_put(msg, 0, seq, &ieee802154_coordinator_family, flags, | |
300 | IEEE802154_LIST_IFACE); | |
301 | if (!hdr) | |
302 | goto out; | |
303 | ||
304 | NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name); | |
305 | NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex); | |
306 | ||
307 | NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
308 | dev->dev_addr); | |
309 | NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR, | |
310 | ieee802154_mlme_ops(dev)->get_short_addr(dev)); | |
311 | NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID, | |
312 | ieee802154_mlme_ops(dev)->get_pan_id(dev)); | |
313 | return genlmsg_end(msg, hdr); | |
314 | ||
315 | nla_put_failure: | |
316 | genlmsg_cancel(msg, hdr); | |
317 | out: | |
318 | return -EMSGSIZE; | |
319 | } | |
320 | ||
2c21d115 SL |
321 | /* Requests from userspace */ |
322 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
323 | { | |
324 | struct net_device *dev; | |
325 | ||
326 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
327 | char name[IFNAMSIZ + 1]; | |
328 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], | |
329 | sizeof(name)); | |
330 | dev = dev_get_by_name(&init_net, name); | |
331 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) | |
332 | dev = dev_get_by_index(&init_net, | |
8e753dd0 | 333 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); |
2c21d115 SL |
334 | else |
335 | return NULL; | |
336 | ||
932c1329 DES |
337 | if (!dev) |
338 | return NULL; | |
339 | ||
2c21d115 SL |
340 | if (dev->type != ARPHRD_IEEE802154) { |
341 | dev_put(dev); | |
342 | return NULL; | |
343 | } | |
344 | ||
345 | return dev; | |
346 | } | |
347 | ||
348 | static int ieee802154_associate_req(struct sk_buff *skb, | |
349 | struct genl_info *info) | |
350 | { | |
351 | struct net_device *dev; | |
352 | struct ieee802154_addr addr; | |
16eea493 | 353 | u8 page; |
2c21d115 SL |
354 | int ret = -EINVAL; |
355 | ||
356 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
357 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
358 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
359 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
360 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
361 | return -EINVAL; | |
362 | ||
363 | dev = ieee802154_nl_get_dev(info); | |
364 | if (!dev) | |
365 | return -ENODEV; | |
366 | ||
367 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
368 | addr.addr_type = IEEE802154_ADDR_LONG; | |
369 | nla_memcpy(addr.hwaddr, | |
370 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR], | |
371 | IEEE802154_ADDR_LEN); | |
372 | } else { | |
373 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
374 | addr.short_addr = nla_get_u16( | |
375 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
376 | } | |
377 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
378 | ||
16eea493 DES |
379 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
380 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
381 | else | |
382 | page = 0; | |
383 | ||
2c21d115 SL |
384 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, |
385 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
16eea493 | 386 | page, |
2c21d115 SL |
387 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); |
388 | ||
389 | dev_put(dev); | |
390 | return ret; | |
391 | } | |
392 | ||
393 | static int ieee802154_associate_resp(struct sk_buff *skb, | |
394 | struct genl_info *info) | |
395 | { | |
396 | struct net_device *dev; | |
397 | struct ieee802154_addr addr; | |
398 | int ret = -EINVAL; | |
399 | ||
400 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
401 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
402 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
403 | return -EINVAL; | |
404 | ||
405 | dev = ieee802154_nl_get_dev(info); | |
406 | if (!dev) | |
407 | return -ENODEV; | |
408 | ||
409 | addr.addr_type = IEEE802154_ADDR_LONG; | |
410 | nla_memcpy(addr.hwaddr, info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
411 | IEEE802154_ADDR_LEN); | |
412 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
413 | ||
414 | ||
415 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
416 | nla_get_u16(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), | |
417 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); | |
418 | ||
419 | dev_put(dev); | |
420 | return ret; | |
421 | } | |
422 | ||
423 | static int ieee802154_disassociate_req(struct sk_buff *skb, | |
424 | struct genl_info *info) | |
425 | { | |
426 | struct net_device *dev; | |
427 | struct ieee802154_addr addr; | |
428 | int ret = -EINVAL; | |
429 | ||
430 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
431 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || | |
432 | !info->attrs[IEEE802154_ATTR_REASON]) | |
433 | return -EINVAL; | |
434 | ||
435 | dev = ieee802154_nl_get_dev(info); | |
436 | if (!dev) | |
437 | return -ENODEV; | |
438 | ||
439 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
440 | addr.addr_type = IEEE802154_ADDR_LONG; | |
441 | nla_memcpy(addr.hwaddr, | |
442 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR], | |
443 | IEEE802154_ADDR_LEN); | |
444 | } else { | |
445 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
446 | addr.short_addr = nla_get_u16( | |
447 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); | |
448 | } | |
449 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
450 | ||
451 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
452 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
453 | ||
454 | dev_put(dev); | |
455 | return ret; | |
456 | } | |
457 | ||
458 | /* | |
459 | * PANid, channel, beacon_order = 15, superframe_order = 15, | |
460 | * PAN_coordinator, battery_life_extension = 0, | |
461 | * coord_realignment = 0, security_enable = 0 | |
462 | */ | |
463 | static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) | |
464 | { | |
465 | struct net_device *dev; | |
466 | struct ieee802154_addr addr; | |
467 | ||
468 | u8 channel, bcn_ord, sf_ord; | |
16eea493 | 469 | u8 page; |
2c21d115 SL |
470 | int pan_coord, blx, coord_realign; |
471 | int ret; | |
472 | ||
473 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
474 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
475 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
476 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
477 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
478 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
479 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
480 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
481 | ) | |
482 | return -EINVAL; | |
483 | ||
484 | dev = ieee802154_nl_get_dev(info); | |
485 | if (!dev) | |
486 | return -ENODEV; | |
487 | ||
488 | addr.addr_type = IEEE802154_ADDR_SHORT; | |
489 | addr.short_addr = nla_get_u16( | |
490 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); | |
491 | addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
492 | ||
493 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
494 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
495 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
496 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
497 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
498 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
499 | ||
16eea493 DES |
500 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
501 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
502 | else | |
503 | page = 0; | |
504 | ||
505 | ||
acb8aacd DB |
506 | if (addr.short_addr == IEEE802154_ADDR_BROADCAST) { |
507 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); | |
508 | dev_put(dev); | |
509 | return -EINVAL; | |
510 | } | |
511 | ||
16eea493 | 512 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
2c21d115 SL |
513 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); |
514 | ||
515 | dev_put(dev); | |
516 | return ret; | |
517 | } | |
518 | ||
519 | static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) | |
520 | { | |
521 | struct net_device *dev; | |
522 | int ret; | |
523 | u8 type; | |
524 | u32 channels; | |
525 | u8 duration; | |
16eea493 | 526 | u8 page; |
2c21d115 SL |
527 | |
528 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
529 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
530 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
531 | return -EINVAL; | |
532 | ||
533 | dev = ieee802154_nl_get_dev(info); | |
534 | if (!dev) | |
535 | return -ENODEV; | |
536 | ||
537 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
538 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
539 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
540 | ||
16eea493 DES |
541 | if (info->attrs[IEEE802154_ATTR_PAGE]) |
542 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
543 | else | |
544 | page = 0; | |
545 | ||
546 | ||
547 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page, | |
2c21d115 SL |
548 | duration); |
549 | ||
550 | dev_put(dev); | |
551 | return ret; | |
552 | } | |
553 | ||
8e753dd0 DB |
554 | static int ieee802154_list_iface(struct sk_buff *skb, |
555 | struct genl_info *info) | |
556 | { | |
557 | /* Request for interface name, index, type, IEEE address, | |
558 | PAN Id, short address */ | |
559 | struct sk_buff *msg; | |
560 | struct net_device *dev = NULL; | |
561 | int rc = -ENOBUFS; | |
562 | ||
563 | pr_debug("%s\n", __func__); | |
564 | ||
565 | dev = ieee802154_nl_get_dev(info); | |
566 | if (!dev) | |
567 | return -ENODEV; | |
568 | ||
569 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
570 | if (!msg) | |
571 | goto out_dev; | |
572 | ||
573 | rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq, | |
574 | 0, dev); | |
575 | if (rc < 0) | |
576 | goto out_free; | |
577 | ||
578 | dev_put(dev); | |
579 | ||
580 | return genlmsg_unicast(&init_net, msg, info->snd_pid); | |
581 | out_free: | |
582 | nlmsg_free(msg); | |
583 | out_dev: | |
584 | dev_put(dev); | |
585 | return rc; | |
586 | ||
587 | } | |
588 | ||
589 | static int ieee802154_dump_iface(struct sk_buff *skb, | |
590 | struct netlink_callback *cb) | |
591 | { | |
592 | struct net *net = sock_net(skb->sk); | |
593 | struct net_device *dev; | |
594 | int idx; | |
595 | int s_idx = cb->args[0]; | |
596 | ||
597 | pr_debug("%s\n", __func__); | |
598 | ||
599 | idx = 0; | |
600 | for_each_netdev(net, dev) { | |
601 | if (idx < s_idx || (dev->type != ARPHRD_IEEE802154)) | |
602 | goto cont; | |
603 | ||
604 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid, | |
605 | cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0) | |
606 | break; | |
607 | cont: | |
608 | idx++; | |
609 | } | |
610 | cb->args[0] = idx; | |
611 | ||
612 | return skb->len; | |
613 | } | |
614 | ||
2c21d115 SL |
615 | #define IEEE802154_OP(_cmd, _func) \ |
616 | { \ | |
617 | .cmd = _cmd, \ | |
618 | .policy = ieee802154_policy, \ | |
619 | .doit = _func, \ | |
620 | .dumpit = NULL, \ | |
621 | .flags = GENL_ADMIN_PERM, \ | |
622 | } | |
623 | ||
8e753dd0 DB |
624 | #define IEEE802154_DUMP(_cmd, _func, _dump) \ |
625 | { \ | |
626 | .cmd = _cmd, \ | |
627 | .policy = ieee802154_policy, \ | |
628 | .doit = _func, \ | |
629 | .dumpit = _dump, \ | |
630 | } | |
631 | ||
2c21d115 SL |
632 | static struct genl_ops ieee802154_coordinator_ops[] = { |
633 | IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req), | |
634 | IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp), | |
635 | IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req), | |
636 | IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req), | |
637 | IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req), | |
8e753dd0 DB |
638 | IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface, |
639 | ieee802154_dump_iface), | |
2c21d115 SL |
640 | }; |
641 | ||
642 | static int __init ieee802154_nl_init(void) | |
643 | { | |
644 | int rc; | |
645 | int i; | |
646 | ||
647 | rc = genl_register_family(&ieee802154_coordinator_family); | |
648 | if (rc) | |
649 | goto fail; | |
650 | ||
651 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
652 | &ieee802154_coord_mcgrp); | |
653 | if (rc) | |
654 | goto fail; | |
655 | ||
656 | rc = genl_register_mc_group(&ieee802154_coordinator_family, | |
657 | &ieee802154_beacon_mcgrp); | |
658 | if (rc) | |
659 | goto fail; | |
660 | ||
661 | ||
662 | for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) { | |
663 | rc = genl_register_ops(&ieee802154_coordinator_family, | |
664 | &ieee802154_coordinator_ops[i]); | |
665 | if (rc) | |
666 | goto fail; | |
667 | } | |
668 | ||
669 | return 0; | |
670 | ||
671 | fail: | |
672 | genl_unregister_family(&ieee802154_coordinator_family); | |
673 | return rc; | |
674 | } | |
675 | module_init(ieee802154_nl_init); | |
676 | ||
677 | static void __exit ieee802154_nl_exit(void) | |
678 | { | |
679 | genl_unregister_family(&ieee802154_coordinator_family); | |
680 | } | |
681 | module_exit(ieee802154_nl_exit); | |
682 | ||
dfd06fe8 DES |
683 | MODULE_LICENSE("GPL v2"); |
684 | MODULE_DESCRIPTION("ieee 802.15.4 configuration interface"); | |
685 |