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