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1 | /* This program is free software; you can redistribute it and/or modify | |
2 | * it under the terms of the GNU General Public License version 2 | |
3 | * as published by the Free Software Foundation. | |
4 | * | |
5 | * This program is distributed in the hope that it will be useful, | |
6 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
7 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
8 | * GNU General Public License for more details. | |
9 | * | |
10 | * Authors: | |
11 | * Alexander Aring <aar@pengutronix.de> | |
12 | * | |
13 | * Based on: net/wireless/nl80211.c | |
14 | */ | |
15 | ||
16 | #include <linux/rtnetlink.h> | |
17 | ||
18 | #include <net/cfg802154.h> | |
19 | #include <net/genetlink.h> | |
20 | #include <net/mac802154.h> | |
21 | #include <net/netlink.h> | |
22 | #include <net/nl802154.h> | |
23 | #include <net/sock.h> | |
24 | ||
25 | #include "nl802154.h" | |
26 | #include "rdev-ops.h" | |
27 | #include "core.h" | |
28 | ||
29 | /* the netlink family */ | |
30 | static struct genl_family nl802154_fam; | |
31 | ||
32 | /* multicast groups */ | |
33 | enum nl802154_multicast_groups { | |
34 | NL802154_MCGRP_CONFIG, | |
35 | }; | |
36 | ||
37 | static const struct genl_multicast_group nl802154_mcgrps[] = { | |
38 | [NL802154_MCGRP_CONFIG] = { .name = "config", }, | |
39 | }; | |
40 | ||
41 | /* returns ERR_PTR values */ | |
42 | static struct wpan_dev * | |
43 | __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs) | |
44 | { | |
45 | struct cfg802154_registered_device *rdev; | |
46 | struct wpan_dev *result = NULL; | |
47 | bool have_ifidx = attrs[NL802154_ATTR_IFINDEX]; | |
48 | bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV]; | |
49 | u64 wpan_dev_id; | |
50 | int wpan_phy_idx = -1; | |
51 | int ifidx = -1; | |
52 | ||
53 | ASSERT_RTNL(); | |
54 | ||
55 | if (!have_ifidx && !have_wpan_dev_id) | |
56 | return ERR_PTR(-EINVAL); | |
57 | ||
58 | if (have_ifidx) | |
59 | ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); | |
60 | if (have_wpan_dev_id) { | |
61 | wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); | |
62 | wpan_phy_idx = wpan_dev_id >> 32; | |
63 | } | |
64 | ||
65 | list_for_each_entry(rdev, &cfg802154_rdev_list, list) { | |
66 | struct wpan_dev *wpan_dev; | |
67 | ||
68 | if (wpan_phy_net(&rdev->wpan_phy) != netns) | |
69 | continue; | |
70 | ||
71 | if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx) | |
72 | continue; | |
73 | ||
74 | list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { | |
75 | if (have_ifidx && wpan_dev->netdev && | |
76 | wpan_dev->netdev->ifindex == ifidx) { | |
77 | result = wpan_dev; | |
78 | break; | |
79 | } | |
80 | if (have_wpan_dev_id && | |
81 | wpan_dev->identifier == (u32)wpan_dev_id) { | |
82 | result = wpan_dev; | |
83 | break; | |
84 | } | |
85 | } | |
86 | ||
87 | if (result) | |
88 | break; | |
89 | } | |
90 | ||
91 | if (result) | |
92 | return result; | |
93 | ||
94 | return ERR_PTR(-ENODEV); | |
95 | } | |
96 | ||
97 | static struct cfg802154_registered_device * | |
98 | __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
99 | { | |
100 | struct cfg802154_registered_device *rdev = NULL, *tmp; | |
101 | struct net_device *netdev; | |
102 | ||
103 | ASSERT_RTNL(); | |
104 | ||
105 | if (!attrs[NL802154_ATTR_WPAN_PHY] && | |
106 | !attrs[NL802154_ATTR_IFINDEX] && | |
107 | !attrs[NL802154_ATTR_WPAN_DEV]) | |
108 | return ERR_PTR(-EINVAL); | |
109 | ||
110 | if (attrs[NL802154_ATTR_WPAN_PHY]) | |
111 | rdev = cfg802154_rdev_by_wpan_phy_idx( | |
112 | nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY])); | |
113 | ||
114 | if (attrs[NL802154_ATTR_WPAN_DEV]) { | |
115 | u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]); | |
116 | struct wpan_dev *wpan_dev; | |
117 | bool found = false; | |
118 | ||
119 | tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32); | |
120 | if (tmp) { | |
121 | /* make sure wpan_dev exists */ | |
122 | list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) { | |
123 | if (wpan_dev->identifier != (u32)wpan_dev_id) | |
124 | continue; | |
125 | found = true; | |
126 | break; | |
127 | } | |
128 | ||
129 | if (!found) | |
130 | tmp = NULL; | |
131 | ||
132 | if (rdev && tmp != rdev) | |
133 | return ERR_PTR(-EINVAL); | |
134 | rdev = tmp; | |
135 | } | |
136 | } | |
137 | ||
138 | if (attrs[NL802154_ATTR_IFINDEX]) { | |
139 | int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]); | |
140 | ||
141 | netdev = __dev_get_by_index(netns, ifindex); | |
142 | if (netdev) { | |
143 | if (netdev->ieee802154_ptr) | |
144 | tmp = wpan_phy_to_rdev( | |
145 | netdev->ieee802154_ptr->wpan_phy); | |
146 | else | |
147 | tmp = NULL; | |
148 | ||
149 | /* not wireless device -- return error */ | |
150 | if (!tmp) | |
151 | return ERR_PTR(-EINVAL); | |
152 | ||
153 | /* mismatch -- return error */ | |
154 | if (rdev && tmp != rdev) | |
155 | return ERR_PTR(-EINVAL); | |
156 | ||
157 | rdev = tmp; | |
158 | } | |
159 | } | |
160 | ||
161 | if (!rdev) | |
162 | return ERR_PTR(-ENODEV); | |
163 | ||
164 | if (netns != wpan_phy_net(&rdev->wpan_phy)) | |
165 | return ERR_PTR(-ENODEV); | |
166 | ||
167 | return rdev; | |
168 | } | |
169 | ||
170 | /* This function returns a pointer to the driver | |
171 | * that the genl_info item that is passed refers to. | |
172 | * | |
173 | * The result of this can be a PTR_ERR and hence must | |
174 | * be checked with IS_ERR() for errors. | |
175 | */ | |
176 | static struct cfg802154_registered_device * | |
177 | cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info) | |
178 | { | |
179 | return __cfg802154_rdev_from_attrs(netns, info->attrs); | |
180 | } | |
181 | ||
182 | /* policy for the attributes */ | |
183 | static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = { | |
184 | [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 }, | |
185 | [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING, | |
186 | .len = 20-1 }, | |
187 | ||
188 | [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
189 | [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
190 | [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
191 | ||
192 | [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 }, | |
193 | ||
194 | [NL802154_ATTR_PAGE] = { .type = NLA_U8, }, | |
195 | [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, }, | |
196 | ||
197 | [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, }, | |
198 | ||
199 | [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, }, | |
200 | [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, }, | |
201 | [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, }, | |
202 | ||
203 | [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, }, | |
204 | ||
205 | [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, }, | |
206 | [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, | |
207 | [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, }, | |
208 | ||
209 | [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, }, | |
210 | [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, }, | |
211 | [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, }, | |
212 | ||
213 | [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, }, | |
214 | ||
215 | [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, }, | |
216 | ||
217 | [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED }, | |
218 | ||
219 | [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED }, | |
220 | ||
221 | [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 }, | |
222 | ||
223 | [NL802154_ATTR_PID] = { .type = NLA_U32 }, | |
224 | [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 }, | |
225 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
226 | [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, }, | |
227 | [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, }, | |
228 | [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, }, | |
229 | [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 }, | |
230 | ||
231 | [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED }, | |
232 | [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED }, | |
233 | [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED }, | |
234 | [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED }, | |
235 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
236 | }; | |
237 | ||
238 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
239 | static int | |
240 | nl802154_prepare_wpan_dev_dump(struct sk_buff *skb, | |
241 | struct netlink_callback *cb, | |
242 | struct cfg802154_registered_device **rdev, | |
243 | struct wpan_dev **wpan_dev) | |
244 | { | |
245 | int err; | |
246 | ||
247 | rtnl_lock(); | |
248 | ||
249 | if (!cb->args[0]) { | |
250 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, | |
251 | genl_family_attrbuf(&nl802154_fam), | |
252 | nl802154_fam.maxattr, | |
253 | nl802154_policy); | |
254 | if (err) | |
255 | goto out_unlock; | |
256 | ||
257 | *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk), | |
258 | genl_family_attrbuf(&nl802154_fam)); | |
259 | if (IS_ERR(*wpan_dev)) { | |
260 | err = PTR_ERR(*wpan_dev); | |
261 | goto out_unlock; | |
262 | } | |
263 | *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy); | |
264 | /* 0 is the first index - add 1 to parse only once */ | |
265 | cb->args[0] = (*rdev)->wpan_phy_idx + 1; | |
266 | cb->args[1] = (*wpan_dev)->identifier; | |
267 | } else { | |
268 | /* subtract the 1 again here */ | |
269 | struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1); | |
270 | struct wpan_dev *tmp; | |
271 | ||
272 | if (!wpan_phy) { | |
273 | err = -ENODEV; | |
274 | goto out_unlock; | |
275 | } | |
276 | *rdev = wpan_phy_to_rdev(wpan_phy); | |
277 | *wpan_dev = NULL; | |
278 | ||
279 | list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) { | |
280 | if (tmp->identifier == cb->args[1]) { | |
281 | *wpan_dev = tmp; | |
282 | break; | |
283 | } | |
284 | } | |
285 | ||
286 | if (!*wpan_dev) { | |
287 | err = -ENODEV; | |
288 | goto out_unlock; | |
289 | } | |
290 | } | |
291 | ||
292 | return 0; | |
293 | out_unlock: | |
294 | rtnl_unlock(); | |
295 | return err; | |
296 | } | |
297 | ||
298 | static void | |
299 | nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev) | |
300 | { | |
301 | rtnl_unlock(); | |
302 | } | |
303 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
304 | ||
305 | /* message building helper */ | |
306 | static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq, | |
307 | int flags, u8 cmd) | |
308 | { | |
309 | /* since there is no private header just add the generic one */ | |
310 | return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd); | |
311 | } | |
312 | ||
313 | static int | |
314 | nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask) | |
315 | { | |
316 | struct nlattr *nl_flags = nla_nest_start(msg, attr); | |
317 | int i; | |
318 | ||
319 | if (!nl_flags) | |
320 | return -ENOBUFS; | |
321 | ||
322 | i = 0; | |
323 | while (mask) { | |
324 | if ((mask & 1) && nla_put_flag(msg, i)) | |
325 | return -ENOBUFS; | |
326 | ||
327 | mask >>= 1; | |
328 | i++; | |
329 | } | |
330 | ||
331 | nla_nest_end(msg, nl_flags); | |
332 | return 0; | |
333 | } | |
334 | ||
335 | static int | |
336 | nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev, | |
337 | struct sk_buff *msg) | |
338 | { | |
339 | struct nlattr *nl_page; | |
340 | unsigned long page; | |
341 | ||
342 | nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED); | |
343 | if (!nl_page) | |
344 | return -ENOBUFS; | |
345 | ||
346 | for (page = 0; page <= IEEE802154_MAX_PAGE; page++) { | |
347 | if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL, | |
348 | rdev->wpan_phy.supported.channels[page])) | |
349 | return -ENOBUFS; | |
350 | } | |
351 | nla_nest_end(msg, nl_page); | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
356 | static int | |
357 | nl802154_put_capabilities(struct sk_buff *msg, | |
358 | struct cfg802154_registered_device *rdev) | |
359 | { | |
360 | const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported; | |
361 | struct nlattr *nl_caps, *nl_channels; | |
362 | int i; | |
363 | ||
364 | nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS); | |
365 | if (!nl_caps) | |
366 | return -ENOBUFS; | |
367 | ||
368 | nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS); | |
369 | if (!nl_channels) | |
370 | return -ENOBUFS; | |
371 | ||
372 | for (i = 0; i <= IEEE802154_MAX_PAGE; i++) { | |
373 | if (caps->channels[i]) { | |
374 | if (nl802154_put_flags(msg, i, caps->channels[i])) | |
375 | return -ENOBUFS; | |
376 | } | |
377 | } | |
378 | ||
379 | nla_nest_end(msg, nl_channels); | |
380 | ||
381 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { | |
382 | struct nlattr *nl_ed_lvls; | |
383 | ||
384 | nl_ed_lvls = nla_nest_start(msg, | |
385 | NL802154_CAP_ATTR_CCA_ED_LEVELS); | |
386 | if (!nl_ed_lvls) | |
387 | return -ENOBUFS; | |
388 | ||
389 | for (i = 0; i < caps->cca_ed_levels_size; i++) { | |
390 | if (nla_put_s32(msg, i, caps->cca_ed_levels[i])) | |
391 | return -ENOBUFS; | |
392 | } | |
393 | ||
394 | nla_nest_end(msg, nl_ed_lvls); | |
395 | } | |
396 | ||
397 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { | |
398 | struct nlattr *nl_tx_pwrs; | |
399 | ||
400 | nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS); | |
401 | if (!nl_tx_pwrs) | |
402 | return -ENOBUFS; | |
403 | ||
404 | for (i = 0; i < caps->tx_powers_size; i++) { | |
405 | if (nla_put_s32(msg, i, caps->tx_powers[i])) | |
406 | return -ENOBUFS; | |
407 | } | |
408 | ||
409 | nla_nest_end(msg, nl_tx_pwrs); | |
410 | } | |
411 | ||
412 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { | |
413 | if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES, | |
414 | caps->cca_modes) || | |
415 | nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS, | |
416 | caps->cca_opts)) | |
417 | return -ENOBUFS; | |
418 | } | |
419 | ||
420 | if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) || | |
421 | nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) || | |
422 | nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) || | |
423 | nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) || | |
424 | nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS, | |
425 | caps->min_csma_backoffs) || | |
426 | nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS, | |
427 | caps->max_csma_backoffs) || | |
428 | nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES, | |
429 | caps->min_frame_retries) || | |
430 | nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES, | |
431 | caps->max_frame_retries) || | |
432 | nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES, | |
433 | caps->iftypes) || | |
434 | nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt)) | |
435 | return -ENOBUFS; | |
436 | ||
437 | nla_nest_end(msg, nl_caps); | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev, | |
443 | enum nl802154_commands cmd, | |
444 | struct sk_buff *msg, u32 portid, u32 seq, | |
445 | int flags) | |
446 | { | |
447 | struct nlattr *nl_cmds; | |
448 | void *hdr; | |
449 | int i; | |
450 | ||
451 | hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); | |
452 | if (!hdr) | |
453 | return -ENOBUFS; | |
454 | ||
455 | if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || | |
456 | nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME, | |
457 | wpan_phy_name(&rdev->wpan_phy)) || | |
458 | nla_put_u32(msg, NL802154_ATTR_GENERATION, | |
459 | cfg802154_rdev_list_generation)) | |
460 | goto nla_put_failure; | |
461 | ||
462 | if (cmd != NL802154_CMD_NEW_WPAN_PHY) | |
463 | goto finish; | |
464 | ||
465 | /* DUMP PHY PIB */ | |
466 | ||
467 | /* current channel settings */ | |
468 | if (nla_put_u8(msg, NL802154_ATTR_PAGE, | |
469 | rdev->wpan_phy.current_page) || | |
470 | nla_put_u8(msg, NL802154_ATTR_CHANNEL, | |
471 | rdev->wpan_phy.current_channel)) | |
472 | goto nla_put_failure; | |
473 | ||
474 | /* TODO remove this behaviour, we still keep support it for a while | |
475 | * so users can change the behaviour to the new one. | |
476 | */ | |
477 | if (nl802154_send_wpan_phy_channels(rdev, msg)) | |
478 | goto nla_put_failure; | |
479 | ||
480 | /* cca mode */ | |
481 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) { | |
482 | if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE, | |
483 | rdev->wpan_phy.cca.mode)) | |
484 | goto nla_put_failure; | |
485 | ||
486 | if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) { | |
487 | if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT, | |
488 | rdev->wpan_phy.cca.opt)) | |
489 | goto nla_put_failure; | |
490 | } | |
491 | } | |
492 | ||
493 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) { | |
494 | if (nla_put_s32(msg, NL802154_ATTR_TX_POWER, | |
495 | rdev->wpan_phy.transmit_power)) | |
496 | goto nla_put_failure; | |
497 | } | |
498 | ||
499 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) { | |
500 | if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL, | |
501 | rdev->wpan_phy.cca_ed_level)) | |
502 | goto nla_put_failure; | |
503 | } | |
504 | ||
505 | if (nl802154_put_capabilities(msg, rdev)) | |
506 | goto nla_put_failure; | |
507 | ||
508 | nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS); | |
509 | if (!nl_cmds) | |
510 | goto nla_put_failure; | |
511 | ||
512 | i = 0; | |
513 | #define CMD(op, n) \ | |
514 | do { \ | |
515 | if (rdev->ops->op) { \ | |
516 | i++; \ | |
517 | if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \ | |
518 | goto nla_put_failure; \ | |
519 | } \ | |
520 | } while (0) | |
521 | ||
522 | CMD(add_virtual_intf, NEW_INTERFACE); | |
523 | CMD(del_virtual_intf, DEL_INTERFACE); | |
524 | CMD(set_channel, SET_CHANNEL); | |
525 | CMD(set_pan_id, SET_PAN_ID); | |
526 | CMD(set_short_addr, SET_SHORT_ADDR); | |
527 | CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT); | |
528 | CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS); | |
529 | CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES); | |
530 | CMD(set_lbt_mode, SET_LBT_MODE); | |
531 | CMD(set_ackreq_default, SET_ACKREQ_DEFAULT); | |
532 | ||
533 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) | |
534 | CMD(set_tx_power, SET_TX_POWER); | |
535 | ||
536 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) | |
537 | CMD(set_cca_ed_level, SET_CCA_ED_LEVEL); | |
538 | ||
539 | if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) | |
540 | CMD(set_cca_mode, SET_CCA_MODE); | |
541 | ||
542 | #undef CMD | |
543 | nla_nest_end(msg, nl_cmds); | |
544 | ||
545 | finish: | |
546 | genlmsg_end(msg, hdr); | |
547 | return 0; | |
548 | ||
549 | nla_put_failure: | |
550 | genlmsg_cancel(msg, hdr); | |
551 | return -EMSGSIZE; | |
552 | } | |
553 | ||
554 | struct nl802154_dump_wpan_phy_state { | |
555 | s64 filter_wpan_phy; | |
556 | long start; | |
557 | ||
558 | }; | |
559 | ||
560 | static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb, | |
561 | struct netlink_callback *cb, | |
562 | struct nl802154_dump_wpan_phy_state *state) | |
563 | { | |
564 | struct nlattr **tb = genl_family_attrbuf(&nl802154_fam); | |
565 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, | |
566 | tb, nl802154_fam.maxattr, nl802154_policy); | |
567 | ||
568 | /* TODO check if we can handle error here, | |
569 | * we have no backward compatibility | |
570 | */ | |
571 | if (ret) | |
572 | return 0; | |
573 | ||
574 | if (tb[NL802154_ATTR_WPAN_PHY]) | |
575 | state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]); | |
576 | if (tb[NL802154_ATTR_WPAN_DEV]) | |
577 | state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32; | |
578 | if (tb[NL802154_ATTR_IFINDEX]) { | |
579 | struct net_device *netdev; | |
580 | struct cfg802154_registered_device *rdev; | |
581 | int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]); | |
582 | ||
583 | netdev = __dev_get_by_index(&init_net, ifidx); | |
584 | if (!netdev) | |
585 | return -ENODEV; | |
586 | if (netdev->ieee802154_ptr) { | |
587 | rdev = wpan_phy_to_rdev( | |
588 | netdev->ieee802154_ptr->wpan_phy); | |
589 | state->filter_wpan_phy = rdev->wpan_phy_idx; | |
590 | } | |
591 | } | |
592 | ||
593 | return 0; | |
594 | } | |
595 | ||
596 | static int | |
597 | nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb) | |
598 | { | |
599 | int idx = 0, ret; | |
600 | struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0]; | |
601 | struct cfg802154_registered_device *rdev; | |
602 | ||
603 | rtnl_lock(); | |
604 | if (!state) { | |
605 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
606 | if (!state) { | |
607 | rtnl_unlock(); | |
608 | return -ENOMEM; | |
609 | } | |
610 | state->filter_wpan_phy = -1; | |
611 | ret = nl802154_dump_wpan_phy_parse(skb, cb, state); | |
612 | if (ret) { | |
613 | kfree(state); | |
614 | rtnl_unlock(); | |
615 | return ret; | |
616 | } | |
617 | cb->args[0] = (long)state; | |
618 | } | |
619 | ||
620 | list_for_each_entry(rdev, &cfg802154_rdev_list, list) { | |
621 | if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) | |
622 | continue; | |
623 | if (++idx <= state->start) | |
624 | continue; | |
625 | if (state->filter_wpan_phy != -1 && | |
626 | state->filter_wpan_phy != rdev->wpan_phy_idx) | |
627 | continue; | |
628 | /* attempt to fit multiple wpan_phy data chunks into the skb */ | |
629 | ret = nl802154_send_wpan_phy(rdev, | |
630 | NL802154_CMD_NEW_WPAN_PHY, | |
631 | skb, | |
632 | NETLINK_CB(cb->skb).portid, | |
633 | cb->nlh->nlmsg_seq, NLM_F_MULTI); | |
634 | if (ret < 0) { | |
635 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && | |
636 | !skb->len && cb->min_dump_alloc < 4096) { | |
637 | cb->min_dump_alloc = 4096; | |
638 | rtnl_unlock(); | |
639 | return 1; | |
640 | } | |
641 | idx--; | |
642 | break; | |
643 | } | |
644 | break; | |
645 | } | |
646 | rtnl_unlock(); | |
647 | ||
648 | state->start = idx; | |
649 | ||
650 | return skb->len; | |
651 | } | |
652 | ||
653 | static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb) | |
654 | { | |
655 | kfree((void *)cb->args[0]); | |
656 | return 0; | |
657 | } | |
658 | ||
659 | static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info) | |
660 | { | |
661 | struct sk_buff *msg; | |
662 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
663 | ||
664 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
665 | if (!msg) | |
666 | return -ENOMEM; | |
667 | ||
668 | if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg, | |
669 | info->snd_portid, info->snd_seq, 0) < 0) { | |
670 | nlmsg_free(msg); | |
671 | return -ENOBUFS; | |
672 | } | |
673 | ||
674 | return genlmsg_reply(msg, info); | |
675 | } | |
676 | ||
677 | static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev) | |
678 | { | |
679 | return (u64)wpan_dev->identifier | | |
680 | ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32); | |
681 | } | |
682 | ||
683 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
684 | #include <net/ieee802154_netdev.h> | |
685 | ||
686 | static int | |
687 | ieee802154_llsec_send_key_id(struct sk_buff *msg, | |
688 | const struct ieee802154_llsec_key_id *desc) | |
689 | { | |
690 | struct nlattr *nl_dev_addr; | |
691 | ||
692 | if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode)) | |
693 | return -ENOBUFS; | |
694 | ||
695 | switch (desc->mode) { | |
696 | case NL802154_KEY_ID_MODE_IMPLICIT: | |
697 | nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT); | |
698 | if (!nl_dev_addr) | |
699 | return -ENOBUFS; | |
700 | ||
701 | if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID, | |
702 | desc->device_addr.pan_id) || | |
703 | nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE, | |
704 | desc->device_addr.mode)) | |
705 | return -ENOBUFS; | |
706 | ||
707 | switch (desc->device_addr.mode) { | |
708 | case NL802154_DEV_ADDR_SHORT: | |
709 | if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT, | |
710 | desc->device_addr.short_addr)) | |
711 | return -ENOBUFS; | |
712 | break; | |
713 | case NL802154_DEV_ADDR_EXTENDED: | |
714 | if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED, | |
715 | desc->device_addr.extended_addr, | |
716 | NL802154_DEV_ADDR_ATTR_PAD)) | |
717 | return -ENOBUFS; | |
718 | break; | |
719 | default: | |
720 | /* userspace should handle unknown */ | |
721 | break; | |
722 | } | |
723 | ||
724 | nla_nest_end(msg, nl_dev_addr); | |
725 | break; | |
726 | case NL802154_KEY_ID_MODE_INDEX: | |
727 | break; | |
728 | case NL802154_KEY_ID_MODE_INDEX_SHORT: | |
729 | /* TODO renmae short_source? */ | |
730 | if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT, | |
731 | desc->short_source)) | |
732 | return -ENOBUFS; | |
733 | break; | |
734 | case NL802154_KEY_ID_MODE_INDEX_EXTENDED: | |
735 | if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED, | |
736 | desc->extended_source, | |
737 | NL802154_KEY_ID_ATTR_PAD)) | |
738 | return -ENOBUFS; | |
739 | break; | |
740 | default: | |
741 | /* userspace should handle unknown */ | |
742 | break; | |
743 | } | |
744 | ||
745 | /* TODO key_id to key_idx ? Check naming */ | |
746 | if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { | |
747 | if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id)) | |
748 | return -ENOBUFS; | |
749 | } | |
750 | ||
751 | return 0; | |
752 | } | |
753 | ||
754 | static int nl802154_get_llsec_params(struct sk_buff *msg, | |
755 | struct cfg802154_registered_device *rdev, | |
756 | struct wpan_dev *wpan_dev) | |
757 | { | |
758 | struct nlattr *nl_key_id; | |
759 | struct ieee802154_llsec_params params; | |
760 | int ret; | |
761 | ||
762 | ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms); | |
763 | if (ret < 0) | |
764 | return ret; | |
765 | ||
766 | if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) || | |
767 | nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) || | |
768 | nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER, | |
769 | params.frame_counter)) | |
770 | return -ENOBUFS; | |
771 | ||
772 | nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID); | |
773 | if (!nl_key_id) | |
774 | return -ENOBUFS; | |
775 | ||
776 | ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key); | |
777 | if (ret < 0) | |
778 | return ret; | |
779 | ||
780 | nla_nest_end(msg, nl_key_id); | |
781 | ||
782 | return 0; | |
783 | } | |
784 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
785 | ||
786 | static int | |
787 | nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, | |
788 | struct cfg802154_registered_device *rdev, | |
789 | struct wpan_dev *wpan_dev) | |
790 | { | |
791 | struct net_device *dev = wpan_dev->netdev; | |
792 | void *hdr; | |
793 | ||
794 | hdr = nl802154hdr_put(msg, portid, seq, flags, | |
795 | NL802154_CMD_NEW_INTERFACE); | |
796 | if (!hdr) | |
797 | return -1; | |
798 | ||
799 | if (dev && | |
800 | (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) || | |
801 | nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name))) | |
802 | goto nla_put_failure; | |
803 | ||
804 | if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) || | |
805 | nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) || | |
806 | nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV, | |
807 | wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) || | |
808 | nla_put_u32(msg, NL802154_ATTR_GENERATION, | |
809 | rdev->devlist_generation ^ | |
810 | (cfg802154_rdev_list_generation << 2))) | |
811 | goto nla_put_failure; | |
812 | ||
813 | /* address settings */ | |
814 | if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR, | |
815 | wpan_dev->extended_addr, | |
816 | NL802154_ATTR_PAD) || | |
817 | nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR, | |
818 | wpan_dev->short_addr) || | |
819 | nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id)) | |
820 | goto nla_put_failure; | |
821 | ||
822 | /* ARET handling */ | |
823 | if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES, | |
824 | wpan_dev->frame_retries) || | |
825 | nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) || | |
826 | nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS, | |
827 | wpan_dev->csma_retries) || | |
828 | nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be)) | |
829 | goto nla_put_failure; | |
830 | ||
831 | /* listen before transmit */ | |
832 | if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt)) | |
833 | goto nla_put_failure; | |
834 | ||
835 | /* ackreq default behaviour */ | |
836 | if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq)) | |
837 | goto nla_put_failure; | |
838 | ||
839 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
840 | if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0) | |
841 | goto nla_put_failure; | |
842 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
843 | ||
844 | genlmsg_end(msg, hdr); | |
845 | return 0; | |
846 | ||
847 | nla_put_failure: | |
848 | genlmsg_cancel(msg, hdr); | |
849 | return -EMSGSIZE; | |
850 | } | |
851 | ||
852 | static int | |
853 | nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
854 | { | |
855 | int wp_idx = 0; | |
856 | int if_idx = 0; | |
857 | int wp_start = cb->args[0]; | |
858 | int if_start = cb->args[1]; | |
859 | struct cfg802154_registered_device *rdev; | |
860 | struct wpan_dev *wpan_dev; | |
861 | ||
862 | rtnl_lock(); | |
863 | list_for_each_entry(rdev, &cfg802154_rdev_list, list) { | |
864 | if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk))) | |
865 | continue; | |
866 | if (wp_idx < wp_start) { | |
867 | wp_idx++; | |
868 | continue; | |
869 | } | |
870 | if_idx = 0; | |
871 | ||
872 | list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) { | |
873 | if (if_idx < if_start) { | |
874 | if_idx++; | |
875 | continue; | |
876 | } | |
877 | if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid, | |
878 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
879 | rdev, wpan_dev) < 0) { | |
880 | goto out; | |
881 | } | |
882 | if_idx++; | |
883 | } | |
884 | ||
885 | wp_idx++; | |
886 | } | |
887 | out: | |
888 | rtnl_unlock(); | |
889 | ||
890 | cb->args[0] = wp_idx; | |
891 | cb->args[1] = if_idx; | |
892 | ||
893 | return skb->len; | |
894 | } | |
895 | ||
896 | static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info) | |
897 | { | |
898 | struct sk_buff *msg; | |
899 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
900 | struct wpan_dev *wdev = info->user_ptr[1]; | |
901 | ||
902 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
903 | if (!msg) | |
904 | return -ENOMEM; | |
905 | ||
906 | if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0, | |
907 | rdev, wdev) < 0) { | |
908 | nlmsg_free(msg); | |
909 | return -ENOBUFS; | |
910 | } | |
911 | ||
912 | return genlmsg_reply(msg, info); | |
913 | } | |
914 | ||
915 | static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info) | |
916 | { | |
917 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
918 | enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC; | |
919 | __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL); | |
920 | ||
921 | /* TODO avoid failing a new interface | |
922 | * creation due to pending removal? | |
923 | */ | |
924 | ||
925 | if (!info->attrs[NL802154_ATTR_IFNAME]) | |
926 | return -EINVAL; | |
927 | ||
928 | if (info->attrs[NL802154_ATTR_IFTYPE]) { | |
929 | type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]); | |
930 | if (type > NL802154_IFTYPE_MAX || | |
931 | !(rdev->wpan_phy.supported.iftypes & BIT(type))) | |
932 | return -EINVAL; | |
933 | } | |
934 | ||
935 | if (info->attrs[NL802154_ATTR_EXTENDED_ADDR]) | |
936 | extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]); | |
937 | ||
938 | if (!rdev->ops->add_virtual_intf) | |
939 | return -EOPNOTSUPP; | |
940 | ||
941 | return rdev_add_virtual_intf(rdev, | |
942 | nla_data(info->attrs[NL802154_ATTR_IFNAME]), | |
943 | NET_NAME_USER, type, extended_addr); | |
944 | } | |
945 | ||
946 | static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info) | |
947 | { | |
948 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
949 | struct wpan_dev *wpan_dev = info->user_ptr[1]; | |
950 | ||
951 | if (!rdev->ops->del_virtual_intf) | |
952 | return -EOPNOTSUPP; | |
953 | ||
954 | /* If we remove a wpan device without a netdev then clear | |
955 | * user_ptr[1] so that nl802154_post_doit won't dereference it | |
956 | * to check if it needs to do dev_put(). Otherwise it crashes | |
957 | * since the wpan_dev has been freed, unlike with a netdev where | |
958 | * we need the dev_put() for the netdev to really be freed. | |
959 | */ | |
960 | if (!wpan_dev->netdev) | |
961 | info->user_ptr[1] = NULL; | |
962 | ||
963 | return rdev_del_virtual_intf(rdev, wpan_dev); | |
964 | } | |
965 | ||
966 | static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info) | |
967 | { | |
968 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
969 | u8 channel, page; | |
970 | ||
971 | if (!info->attrs[NL802154_ATTR_PAGE] || | |
972 | !info->attrs[NL802154_ATTR_CHANNEL]) | |
973 | return -EINVAL; | |
974 | ||
975 | page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]); | |
976 | channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]); | |
977 | ||
978 | /* check 802.15.4 constraints */ | |
979 | if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL || | |
980 | !(rdev->wpan_phy.supported.channels[page] & BIT(channel))) | |
981 | return -EINVAL; | |
982 | ||
983 | return rdev_set_channel(rdev, page, channel); | |
984 | } | |
985 | ||
986 | static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) | |
987 | { | |
988 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
989 | struct wpan_phy_cca cca; | |
990 | ||
991 | if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)) | |
992 | return -EOPNOTSUPP; | |
993 | ||
994 | if (!info->attrs[NL802154_ATTR_CCA_MODE]) | |
995 | return -EINVAL; | |
996 | ||
997 | cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]); | |
998 | /* checking 802.15.4 constraints */ | |
999 | if (cca.mode < NL802154_CCA_ENERGY || | |
1000 | cca.mode > NL802154_CCA_ATTR_MAX || | |
1001 | !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode))) | |
1002 | return -EINVAL; | |
1003 | ||
1004 | if (cca.mode == NL802154_CCA_ENERGY_CARRIER) { | |
1005 | if (!info->attrs[NL802154_ATTR_CCA_OPT]) | |
1006 | return -EINVAL; | |
1007 | ||
1008 | cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]); | |
1009 | if (cca.opt > NL802154_CCA_OPT_ATTR_MAX || | |
1010 | !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt))) | |
1011 | return -EINVAL; | |
1012 | } | |
1013 | ||
1014 | return rdev_set_cca_mode(rdev, &cca); | |
1015 | } | |
1016 | ||
1017 | static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) | |
1018 | { | |
1019 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1020 | s32 ed_level; | |
1021 | int i; | |
1022 | ||
1023 | if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) | |
1024 | return -EOPNOTSUPP; | |
1025 | ||
1026 | if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) | |
1027 | return -EINVAL; | |
1028 | ||
1029 | ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); | |
1030 | ||
1031 | for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { | |
1032 | if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) | |
1033 | return rdev_set_cca_ed_level(rdev, ed_level); | |
1034 | } | |
1035 | ||
1036 | return -EINVAL; | |
1037 | } | |
1038 | ||
1039 | static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) | |
1040 | { | |
1041 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1042 | s32 power; | |
1043 | int i; | |
1044 | ||
1045 | if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)) | |
1046 | return -EOPNOTSUPP; | |
1047 | ||
1048 | if (!info->attrs[NL802154_ATTR_TX_POWER]) | |
1049 | return -EINVAL; | |
1050 | ||
1051 | power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]); | |
1052 | ||
1053 | for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) { | |
1054 | if (power == rdev->wpan_phy.supported.tx_powers[i]) | |
1055 | return rdev_set_tx_power(rdev, power); | |
1056 | } | |
1057 | ||
1058 | return -EINVAL; | |
1059 | } | |
1060 | ||
1061 | static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info) | |
1062 | { | |
1063 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1064 | struct net_device *dev = info->user_ptr[1]; | |
1065 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1066 | __le16 pan_id; | |
1067 | ||
1068 | /* conflict here while tx/rx calls */ | |
1069 | if (netif_running(dev)) | |
1070 | return -EBUSY; | |
1071 | ||
1072 | if (wpan_dev->lowpan_dev) { | |
1073 | if (netif_running(wpan_dev->lowpan_dev)) | |
1074 | return -EBUSY; | |
1075 | } | |
1076 | ||
1077 | /* don't change address fields on monitor */ | |
1078 | if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || | |
1079 | !info->attrs[NL802154_ATTR_PAN_ID]) | |
1080 | return -EINVAL; | |
1081 | ||
1082 | pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]); | |
1083 | ||
1084 | /* TODO | |
1085 | * I am not sure about to check here on broadcast pan_id. | |
1086 | * Broadcast is a valid setting, comment from 802.15.4: | |
1087 | * If this value is 0xffff, the device is not associated. | |
1088 | * | |
1089 | * This could useful to simple deassociate an device. | |
1090 | */ | |
1091 | if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST)) | |
1092 | return -EINVAL; | |
1093 | ||
1094 | return rdev_set_pan_id(rdev, wpan_dev, pan_id); | |
1095 | } | |
1096 | ||
1097 | static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info) | |
1098 | { | |
1099 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1100 | struct net_device *dev = info->user_ptr[1]; | |
1101 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1102 | __le16 short_addr; | |
1103 | ||
1104 | /* conflict here while tx/rx calls */ | |
1105 | if (netif_running(dev)) | |
1106 | return -EBUSY; | |
1107 | ||
1108 | if (wpan_dev->lowpan_dev) { | |
1109 | if (netif_running(wpan_dev->lowpan_dev)) | |
1110 | return -EBUSY; | |
1111 | } | |
1112 | ||
1113 | /* don't change address fields on monitor */ | |
1114 | if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR || | |
1115 | !info->attrs[NL802154_ATTR_SHORT_ADDR]) | |
1116 | return -EINVAL; | |
1117 | ||
1118 | short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]); | |
1119 | ||
1120 | /* TODO | |
1121 | * I am not sure about to check here on broadcast short_addr. | |
1122 | * Broadcast is a valid setting, comment from 802.15.4: | |
1123 | * A value of 0xfffe indicates that the device has | |
1124 | * associated but has not been allocated an address. A | |
1125 | * value of 0xffff indicates that the device does not | |
1126 | * have a short address. | |
1127 | * | |
1128 | * I think we should allow to set these settings but | |
1129 | * don't allow to allow socket communication with it. | |
1130 | */ | |
1131 | if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) || | |
1132 | short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)) | |
1133 | return -EINVAL; | |
1134 | ||
1135 | return rdev_set_short_addr(rdev, wpan_dev, short_addr); | |
1136 | } | |
1137 | ||
1138 | static int | |
1139 | nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info) | |
1140 | { | |
1141 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1142 | struct net_device *dev = info->user_ptr[1]; | |
1143 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1144 | u8 min_be, max_be; | |
1145 | ||
1146 | /* should be set on netif open inside phy settings */ | |
1147 | if (netif_running(dev)) | |
1148 | return -EBUSY; | |
1149 | ||
1150 | if (!info->attrs[NL802154_ATTR_MIN_BE] || | |
1151 | !info->attrs[NL802154_ATTR_MAX_BE]) | |
1152 | return -EINVAL; | |
1153 | ||
1154 | min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]); | |
1155 | max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]); | |
1156 | ||
1157 | /* check 802.15.4 constraints */ | |
1158 | if (min_be < rdev->wpan_phy.supported.min_minbe || | |
1159 | min_be > rdev->wpan_phy.supported.max_minbe || | |
1160 | max_be < rdev->wpan_phy.supported.min_maxbe || | |
1161 | max_be > rdev->wpan_phy.supported.max_maxbe || | |
1162 | min_be > max_be) | |
1163 | return -EINVAL; | |
1164 | ||
1165 | return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be); | |
1166 | } | |
1167 | ||
1168 | static int | |
1169 | nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info) | |
1170 | { | |
1171 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1172 | struct net_device *dev = info->user_ptr[1]; | |
1173 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1174 | u8 max_csma_backoffs; | |
1175 | ||
1176 | /* conflict here while other running iface settings */ | |
1177 | if (netif_running(dev)) | |
1178 | return -EBUSY; | |
1179 | ||
1180 | if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]) | |
1181 | return -EINVAL; | |
1182 | ||
1183 | max_csma_backoffs = nla_get_u8( | |
1184 | info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]); | |
1185 | ||
1186 | /* check 802.15.4 constraints */ | |
1187 | if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs || | |
1188 | max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs) | |
1189 | return -EINVAL; | |
1190 | ||
1191 | return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs); | |
1192 | } | |
1193 | ||
1194 | static int | |
1195 | nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info) | |
1196 | { | |
1197 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1198 | struct net_device *dev = info->user_ptr[1]; | |
1199 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1200 | s8 max_frame_retries; | |
1201 | ||
1202 | if (netif_running(dev)) | |
1203 | return -EBUSY; | |
1204 | ||
1205 | if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]) | |
1206 | return -EINVAL; | |
1207 | ||
1208 | max_frame_retries = nla_get_s8( | |
1209 | info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]); | |
1210 | ||
1211 | /* check 802.15.4 constraints */ | |
1212 | if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries || | |
1213 | max_frame_retries > rdev->wpan_phy.supported.max_frame_retries) | |
1214 | return -EINVAL; | |
1215 | ||
1216 | return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries); | |
1217 | } | |
1218 | ||
1219 | static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info) | |
1220 | { | |
1221 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1222 | struct net_device *dev = info->user_ptr[1]; | |
1223 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1224 | int mode; | |
1225 | ||
1226 | if (netif_running(dev)) | |
1227 | return -EBUSY; | |
1228 | ||
1229 | if (!info->attrs[NL802154_ATTR_LBT_MODE]) | |
1230 | return -EINVAL; | |
1231 | ||
1232 | mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]); | |
1233 | ||
1234 | if (mode != 0 && mode != 1) | |
1235 | return -EINVAL; | |
1236 | ||
1237 | if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt)) | |
1238 | return -EINVAL; | |
1239 | ||
1240 | return rdev_set_lbt_mode(rdev, wpan_dev, mode); | |
1241 | } | |
1242 | ||
1243 | static int | |
1244 | nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info) | |
1245 | { | |
1246 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1247 | struct net_device *dev = info->user_ptr[1]; | |
1248 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1249 | int ackreq; | |
1250 | ||
1251 | if (netif_running(dev)) | |
1252 | return -EBUSY; | |
1253 | ||
1254 | if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]) | |
1255 | return -EINVAL; | |
1256 | ||
1257 | ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]); | |
1258 | ||
1259 | if (ackreq != 0 && ackreq != 1) | |
1260 | return -EINVAL; | |
1261 | ||
1262 | return rdev_set_ackreq_default(rdev, wpan_dev, ackreq); | |
1263 | } | |
1264 | ||
1265 | static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info) | |
1266 | { | |
1267 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1268 | struct net *net; | |
1269 | int err; | |
1270 | ||
1271 | if (info->attrs[NL802154_ATTR_PID]) { | |
1272 | u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]); | |
1273 | ||
1274 | net = get_net_ns_by_pid(pid); | |
1275 | } else if (info->attrs[NL802154_ATTR_NETNS_FD]) { | |
1276 | u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]); | |
1277 | ||
1278 | net = get_net_ns_by_fd(fd); | |
1279 | } else { | |
1280 | return -EINVAL; | |
1281 | } | |
1282 | ||
1283 | if (IS_ERR(net)) | |
1284 | return PTR_ERR(net); | |
1285 | ||
1286 | err = 0; | |
1287 | ||
1288 | /* check if anything to do */ | |
1289 | if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net)) | |
1290 | err = cfg802154_switch_netns(rdev, net); | |
1291 | ||
1292 | put_net(net); | |
1293 | return err; | |
1294 | } | |
1295 | ||
1296 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
1297 | static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = { | |
1298 | [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 }, | |
1299 | [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 }, | |
1300 | [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 }, | |
1301 | [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 }, | |
1302 | }; | |
1303 | ||
1304 | static int | |
1305 | ieee802154_llsec_parse_dev_addr(struct nlattr *nla, | |
1306 | struct ieee802154_addr *addr) | |
1307 | { | |
1308 | struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1]; | |
1309 | ||
1310 | if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, | |
1311 | nl802154_dev_addr_policy)) | |
1312 | return -EINVAL; | |
1313 | ||
1314 | if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || | |
1315 | !attrs[NL802154_DEV_ADDR_ATTR_MODE] || | |
1316 | !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] || | |
1317 | attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])) | |
1318 | return -EINVAL; | |
1319 | ||
1320 | addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]); | |
1321 | addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]); | |
1322 | switch (addr->mode) { | |
1323 | case NL802154_DEV_ADDR_SHORT: | |
1324 | addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]); | |
1325 | break; | |
1326 | case NL802154_DEV_ADDR_EXTENDED: | |
1327 | addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]); | |
1328 | break; | |
1329 | default: | |
1330 | return -EINVAL; | |
1331 | } | |
1332 | ||
1333 | return 0; | |
1334 | } | |
1335 | ||
1336 | static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = { | |
1337 | [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 }, | |
1338 | [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 }, | |
1339 | [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED }, | |
1340 | [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 }, | |
1341 | [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 }, | |
1342 | }; | |
1343 | ||
1344 | static int | |
1345 | ieee802154_llsec_parse_key_id(struct nlattr *nla, | |
1346 | struct ieee802154_llsec_key_id *desc) | |
1347 | { | |
1348 | struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1]; | |
1349 | ||
1350 | if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla, | |
1351 | nl802154_key_id_policy)) | |
1352 | return -EINVAL; | |
1353 | ||
1354 | if (!attrs[NL802154_KEY_ID_ATTR_MODE]) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]); | |
1358 | switch (desc->mode) { | |
1359 | case NL802154_KEY_ID_MODE_IMPLICIT: | |
1360 | if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT]) | |
1361 | return -EINVAL; | |
1362 | ||
1363 | if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT], | |
1364 | &desc->device_addr) < 0) | |
1365 | return -EINVAL; | |
1366 | break; | |
1367 | case NL802154_KEY_ID_MODE_INDEX: | |
1368 | break; | |
1369 | case NL802154_KEY_ID_MODE_INDEX_SHORT: | |
1370 | if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]) | |
1371 | return -EINVAL; | |
1372 | ||
1373 | desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]); | |
1374 | break; | |
1375 | case NL802154_KEY_ID_MODE_INDEX_EXTENDED: | |
1376 | if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]) | |
1377 | return -EINVAL; | |
1378 | ||
1379 | desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]); | |
1380 | break; | |
1381 | default: | |
1382 | return -EINVAL; | |
1383 | } | |
1384 | ||
1385 | if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) { | |
1386 | if (!attrs[NL802154_KEY_ID_ATTR_INDEX]) | |
1387 | return -EINVAL; | |
1388 | ||
1389 | /* TODO change id to idx */ | |
1390 | desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]); | |
1391 | } | |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | static int nl802154_set_llsec_params(struct sk_buff *skb, | |
1397 | struct genl_info *info) | |
1398 | { | |
1399 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1400 | struct net_device *dev = info->user_ptr[1]; | |
1401 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1402 | struct ieee802154_llsec_params params; | |
1403 | u32 changed = 0; | |
1404 | int ret; | |
1405 | ||
1406 | if (info->attrs[NL802154_ATTR_SEC_ENABLED]) { | |
1407 | u8 enabled; | |
1408 | ||
1409 | enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); | |
1410 | if (enabled != 0 && enabled != 1) | |
1411 | return -EINVAL; | |
1412 | ||
1413 | params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]); | |
1414 | changed |= IEEE802154_LLSEC_PARAM_ENABLED; | |
1415 | } | |
1416 | ||
1417 | if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) { | |
1418 | ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID], | |
1419 | ¶ms.out_key); | |
1420 | if (ret < 0) | |
1421 | return ret; | |
1422 | ||
1423 | changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; | |
1424 | } | |
1425 | ||
1426 | if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) { | |
1427 | params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]); | |
1428 | if (params.out_level > NL802154_SECLEVEL_MAX) | |
1429 | return -EINVAL; | |
1430 | ||
1431 | changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; | |
1432 | } | |
1433 | ||
1434 | if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) { | |
1435 | params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]); | |
1436 | changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; | |
1437 | } | |
1438 | ||
1439 | return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed); | |
1440 | } | |
1441 | ||
1442 | static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid, | |
1443 | u32 seq, int flags, | |
1444 | struct cfg802154_registered_device *rdev, | |
1445 | struct net_device *dev, | |
1446 | const struct ieee802154_llsec_key_entry *key) | |
1447 | { | |
1448 | void *hdr; | |
1449 | u32 commands[NL802154_CMD_FRAME_NR_IDS / 32]; | |
1450 | struct nlattr *nl_key, *nl_key_id; | |
1451 | ||
1452 | hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); | |
1453 | if (!hdr) | |
1454 | return -1; | |
1455 | ||
1456 | if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) | |
1457 | goto nla_put_failure; | |
1458 | ||
1459 | nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY); | |
1460 | if (!nl_key) | |
1461 | goto nla_put_failure; | |
1462 | ||
1463 | nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID); | |
1464 | if (!nl_key_id) | |
1465 | goto nla_put_failure; | |
1466 | ||
1467 | if (ieee802154_llsec_send_key_id(msg, &key->id) < 0) | |
1468 | goto nla_put_failure; | |
1469 | ||
1470 | nla_nest_end(msg, nl_key_id); | |
1471 | ||
1472 | if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES, | |
1473 | key->key->frame_types)) | |
1474 | goto nla_put_failure; | |
1475 | ||
1476 | if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) { | |
1477 | /* TODO for each nested */ | |
1478 | memset(commands, 0, sizeof(commands)); | |
1479 | commands[7] = key->key->cmd_frame_ids; | |
1480 | if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS, | |
1481 | sizeof(commands), commands)) | |
1482 | goto nla_put_failure; | |
1483 | } | |
1484 | ||
1485 | if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE, | |
1486 | key->key->key)) | |
1487 | goto nla_put_failure; | |
1488 | ||
1489 | nla_nest_end(msg, nl_key); | |
1490 | genlmsg_end(msg, hdr); | |
1491 | ||
1492 | return 0; | |
1493 | ||
1494 | nla_put_failure: | |
1495 | genlmsg_cancel(msg, hdr); | |
1496 | return -EMSGSIZE; | |
1497 | } | |
1498 | ||
1499 | static int | |
1500 | nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb) | |
1501 | { | |
1502 | struct cfg802154_registered_device *rdev = NULL; | |
1503 | struct ieee802154_llsec_key_entry *key; | |
1504 | struct ieee802154_llsec_table *table; | |
1505 | struct wpan_dev *wpan_dev; | |
1506 | int err; | |
1507 | ||
1508 | err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); | |
1509 | if (err) | |
1510 | return err; | |
1511 | ||
1512 | if (!wpan_dev->netdev) { | |
1513 | err = -EINVAL; | |
1514 | goto out_err; | |
1515 | } | |
1516 | ||
1517 | rdev_lock_llsec_table(rdev, wpan_dev); | |
1518 | rdev_get_llsec_table(rdev, wpan_dev, &table); | |
1519 | ||
1520 | /* TODO make it like station dump */ | |
1521 | if (cb->args[2]) | |
1522 | goto out; | |
1523 | ||
1524 | list_for_each_entry(key, &table->keys, list) { | |
1525 | if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY, | |
1526 | NETLINK_CB(cb->skb).portid, | |
1527 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1528 | rdev, wpan_dev->netdev, key) < 0) { | |
1529 | /* TODO */ | |
1530 | err = -EIO; | |
1531 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1532 | goto out_err; | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | cb->args[2] = 1; | |
1537 | ||
1538 | out: | |
1539 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1540 | err = skb->len; | |
1541 | out_err: | |
1542 | nl802154_finish_wpan_dev_dump(rdev); | |
1543 | ||
1544 | return err; | |
1545 | } | |
1546 | ||
1547 | static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = { | |
1548 | [NL802154_KEY_ATTR_ID] = { NLA_NESTED }, | |
1549 | /* TODO handle it as for_each_nested and NLA_FLAG? */ | |
1550 | [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 }, | |
1551 | /* TODO handle it as for_each_nested, not static array? */ | |
1552 | [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 }, | |
1553 | [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE }, | |
1554 | }; | |
1555 | ||
1556 | static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info) | |
1557 | { | |
1558 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1559 | struct net_device *dev = info->user_ptr[1]; | |
1560 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1561 | struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; | |
1562 | struct ieee802154_llsec_key key = { }; | |
1563 | struct ieee802154_llsec_key_id id = { }; | |
1564 | u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { }; | |
1565 | ||
1566 | if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, | |
1567 | info->attrs[NL802154_ATTR_SEC_KEY], | |
1568 | nl802154_key_policy)) | |
1569 | return -EINVAL; | |
1570 | ||
1571 | if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] || | |
1572 | !attrs[NL802154_KEY_ATTR_BYTES]) | |
1573 | return -EINVAL; | |
1574 | ||
1575 | if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) | |
1576 | return -ENOBUFS; | |
1577 | ||
1578 | key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]); | |
1579 | if (key.frame_types > BIT(NL802154_FRAME_MAX) || | |
1580 | ((key.frame_types & BIT(NL802154_FRAME_CMD)) && | |
1581 | !attrs[NL802154_KEY_ATTR_USAGE_CMDS])) | |
1582 | return -EINVAL; | |
1583 | ||
1584 | if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) { | |
1585 | /* TODO for each nested */ | |
1586 | nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS], | |
1587 | NL802154_CMD_FRAME_NR_IDS / 8); | |
1588 | ||
1589 | /* TODO understand the -EINVAL logic here? last condition */ | |
1590 | if (commands[0] || commands[1] || commands[2] || commands[3] || | |
1591 | commands[4] || commands[5] || commands[6] || | |
1592 | commands[7] > BIT(NL802154_CMD_FRAME_MAX)) | |
1593 | return -EINVAL; | |
1594 | ||
1595 | key.cmd_frame_ids = commands[7]; | |
1596 | } else { | |
1597 | key.cmd_frame_ids = 0; | |
1598 | } | |
1599 | ||
1600 | nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE); | |
1601 | ||
1602 | if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) | |
1603 | return -ENOBUFS; | |
1604 | ||
1605 | return rdev_add_llsec_key(rdev, wpan_dev, &id, &key); | |
1606 | } | |
1607 | ||
1608 | static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info) | |
1609 | { | |
1610 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1611 | struct net_device *dev = info->user_ptr[1]; | |
1612 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1613 | struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1]; | |
1614 | struct ieee802154_llsec_key_id id; | |
1615 | ||
1616 | if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX, | |
1617 | info->attrs[NL802154_ATTR_SEC_KEY], | |
1618 | nl802154_key_policy)) | |
1619 | return -EINVAL; | |
1620 | ||
1621 | if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0) | |
1622 | return -ENOBUFS; | |
1623 | ||
1624 | return rdev_del_llsec_key(rdev, wpan_dev, &id); | |
1625 | } | |
1626 | ||
1627 | static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid, | |
1628 | u32 seq, int flags, | |
1629 | struct cfg802154_registered_device *rdev, | |
1630 | struct net_device *dev, | |
1631 | const struct ieee802154_llsec_device *dev_desc) | |
1632 | { | |
1633 | void *hdr; | |
1634 | struct nlattr *nl_device; | |
1635 | ||
1636 | hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); | |
1637 | if (!hdr) | |
1638 | return -1; | |
1639 | ||
1640 | if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) | |
1641 | goto nla_put_failure; | |
1642 | ||
1643 | nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE); | |
1644 | if (!nl_device) | |
1645 | goto nla_put_failure; | |
1646 | ||
1647 | if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER, | |
1648 | dev_desc->frame_counter) || | |
1649 | nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) || | |
1650 | nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR, | |
1651 | dev_desc->short_addr) || | |
1652 | nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR, | |
1653 | dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) || | |
1654 | nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT, | |
1655 | dev_desc->seclevel_exempt) || | |
1656 | nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode)) | |
1657 | goto nla_put_failure; | |
1658 | ||
1659 | nla_nest_end(msg, nl_device); | |
1660 | genlmsg_end(msg, hdr); | |
1661 | ||
1662 | return 0; | |
1663 | ||
1664 | nla_put_failure: | |
1665 | genlmsg_cancel(msg, hdr); | |
1666 | return -EMSGSIZE; | |
1667 | } | |
1668 | ||
1669 | static int | |
1670 | nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb) | |
1671 | { | |
1672 | struct cfg802154_registered_device *rdev = NULL; | |
1673 | struct ieee802154_llsec_device *dev; | |
1674 | struct ieee802154_llsec_table *table; | |
1675 | struct wpan_dev *wpan_dev; | |
1676 | int err; | |
1677 | ||
1678 | err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); | |
1679 | if (err) | |
1680 | return err; | |
1681 | ||
1682 | if (!wpan_dev->netdev) { | |
1683 | err = -EINVAL; | |
1684 | goto out_err; | |
1685 | } | |
1686 | ||
1687 | rdev_lock_llsec_table(rdev, wpan_dev); | |
1688 | rdev_get_llsec_table(rdev, wpan_dev, &table); | |
1689 | ||
1690 | /* TODO make it like station dump */ | |
1691 | if (cb->args[2]) | |
1692 | goto out; | |
1693 | ||
1694 | list_for_each_entry(dev, &table->devices, list) { | |
1695 | if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL, | |
1696 | NETLINK_CB(cb->skb).portid, | |
1697 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1698 | rdev, wpan_dev->netdev, dev) < 0) { | |
1699 | /* TODO */ | |
1700 | err = -EIO; | |
1701 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1702 | goto out_err; | |
1703 | } | |
1704 | } | |
1705 | ||
1706 | cb->args[2] = 1; | |
1707 | ||
1708 | out: | |
1709 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1710 | err = skb->len; | |
1711 | out_err: | |
1712 | nl802154_finish_wpan_dev_dump(rdev); | |
1713 | ||
1714 | return err; | |
1715 | } | |
1716 | ||
1717 | static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = { | |
1718 | [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 }, | |
1719 | [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 }, | |
1720 | [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 }, | |
1721 | [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 }, | |
1722 | [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 }, | |
1723 | [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 }, | |
1724 | }; | |
1725 | ||
1726 | static int | |
1727 | ieee802154_llsec_parse_device(struct nlattr *nla, | |
1728 | struct ieee802154_llsec_device *dev) | |
1729 | { | |
1730 | struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; | |
1731 | ||
1732 | if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla, | |
1733 | nl802154_dev_policy)) | |
1734 | return -EINVAL; | |
1735 | ||
1736 | memset(dev, 0, sizeof(*dev)); | |
1737 | ||
1738 | if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] || | |
1739 | !attrs[NL802154_DEV_ATTR_PAN_ID] || | |
1740 | !attrs[NL802154_DEV_ATTR_SHORT_ADDR] || | |
1741 | !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] || | |
1742 | !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] || | |
1743 | !attrs[NL802154_DEV_ATTR_KEY_MODE]) | |
1744 | return -EINVAL; | |
1745 | ||
1746 | /* TODO be32 */ | |
1747 | dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]); | |
1748 | dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]); | |
1749 | dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]); | |
1750 | /* TODO rename hwaddr to extended_addr */ | |
1751 | dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); | |
1752 | dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]); | |
1753 | dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]); | |
1754 | ||
1755 | if (dev->key_mode > NL802154_DEVKEY_MAX || | |
1756 | (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1)) | |
1757 | return -EINVAL; | |
1758 | ||
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info) | |
1763 | { | |
1764 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1765 | struct net_device *dev = info->user_ptr[1]; | |
1766 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1767 | struct ieee802154_llsec_device dev_desc; | |
1768 | ||
1769 | if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE], | |
1770 | &dev_desc) < 0) | |
1771 | return -EINVAL; | |
1772 | ||
1773 | return rdev_add_device(rdev, wpan_dev, &dev_desc); | |
1774 | } | |
1775 | ||
1776 | static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info) | |
1777 | { | |
1778 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1779 | struct net_device *dev = info->user_ptr[1]; | |
1780 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1781 | struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1]; | |
1782 | __le64 extended_addr; | |
1783 | ||
1784 | if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, | |
1785 | info->attrs[NL802154_ATTR_SEC_DEVICE], | |
1786 | nl802154_dev_policy)) | |
1787 | return -EINVAL; | |
1788 | ||
1789 | if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]) | |
1790 | return -EINVAL; | |
1791 | ||
1792 | extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]); | |
1793 | return rdev_del_device(rdev, wpan_dev, extended_addr); | |
1794 | } | |
1795 | ||
1796 | static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid, | |
1797 | u32 seq, int flags, | |
1798 | struct cfg802154_registered_device *rdev, | |
1799 | struct net_device *dev, __le64 extended_addr, | |
1800 | const struct ieee802154_llsec_device_key *devkey) | |
1801 | { | |
1802 | void *hdr; | |
1803 | struct nlattr *nl_devkey, *nl_key_id; | |
1804 | ||
1805 | hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); | |
1806 | if (!hdr) | |
1807 | return -1; | |
1808 | ||
1809 | if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) | |
1810 | goto nla_put_failure; | |
1811 | ||
1812 | nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY); | |
1813 | if (!nl_devkey) | |
1814 | goto nla_put_failure; | |
1815 | ||
1816 | if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR, | |
1817 | extended_addr, NL802154_DEVKEY_ATTR_PAD) || | |
1818 | nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER, | |
1819 | devkey->frame_counter)) | |
1820 | goto nla_put_failure; | |
1821 | ||
1822 | nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID); | |
1823 | if (!nl_key_id) | |
1824 | goto nla_put_failure; | |
1825 | ||
1826 | if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0) | |
1827 | goto nla_put_failure; | |
1828 | ||
1829 | nla_nest_end(msg, nl_key_id); | |
1830 | nla_nest_end(msg, nl_devkey); | |
1831 | genlmsg_end(msg, hdr); | |
1832 | ||
1833 | return 0; | |
1834 | ||
1835 | nla_put_failure: | |
1836 | genlmsg_cancel(msg, hdr); | |
1837 | return -EMSGSIZE; | |
1838 | } | |
1839 | ||
1840 | static int | |
1841 | nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb) | |
1842 | { | |
1843 | struct cfg802154_registered_device *rdev = NULL; | |
1844 | struct ieee802154_llsec_device_key *kpos; | |
1845 | struct ieee802154_llsec_device *dpos; | |
1846 | struct ieee802154_llsec_table *table; | |
1847 | struct wpan_dev *wpan_dev; | |
1848 | int err; | |
1849 | ||
1850 | err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); | |
1851 | if (err) | |
1852 | return err; | |
1853 | ||
1854 | if (!wpan_dev->netdev) { | |
1855 | err = -EINVAL; | |
1856 | goto out_err; | |
1857 | } | |
1858 | ||
1859 | rdev_lock_llsec_table(rdev, wpan_dev); | |
1860 | rdev_get_llsec_table(rdev, wpan_dev, &table); | |
1861 | ||
1862 | /* TODO make it like station dump */ | |
1863 | if (cb->args[2]) | |
1864 | goto out; | |
1865 | ||
1866 | /* TODO look if remove devkey and do some nested attribute */ | |
1867 | list_for_each_entry(dpos, &table->devices, list) { | |
1868 | list_for_each_entry(kpos, &dpos->keys, list) { | |
1869 | if (nl802154_send_devkey(skb, | |
1870 | NL802154_CMD_NEW_SEC_LEVEL, | |
1871 | NETLINK_CB(cb->skb).portid, | |
1872 | cb->nlh->nlmsg_seq, | |
1873 | NLM_F_MULTI, rdev, | |
1874 | wpan_dev->netdev, | |
1875 | dpos->hwaddr, | |
1876 | kpos) < 0) { | |
1877 | /* TODO */ | |
1878 | err = -EIO; | |
1879 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1880 | goto out_err; | |
1881 | } | |
1882 | } | |
1883 | } | |
1884 | ||
1885 | cb->args[2] = 1; | |
1886 | ||
1887 | out: | |
1888 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
1889 | err = skb->len; | |
1890 | out_err: | |
1891 | nl802154_finish_wpan_dev_dump(rdev); | |
1892 | ||
1893 | return err; | |
1894 | } | |
1895 | ||
1896 | static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = { | |
1897 | [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 }, | |
1898 | [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 }, | |
1899 | [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED }, | |
1900 | }; | |
1901 | ||
1902 | static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info) | |
1903 | { | |
1904 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1905 | struct net_device *dev = info->user_ptr[1]; | |
1906 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1907 | struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; | |
1908 | struct ieee802154_llsec_device_key key; | |
1909 | __le64 extended_addr; | |
1910 | ||
1911 | if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] || | |
1912 | nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, | |
1913 | info->attrs[NL802154_ATTR_SEC_DEVKEY], | |
1914 | nl802154_devkey_policy) < 0) | |
1915 | return -EINVAL; | |
1916 | ||
1917 | if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] || | |
1918 | !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) | |
1919 | return -EINVAL; | |
1920 | ||
1921 | /* TODO change key.id ? */ | |
1922 | if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], | |
1923 | &key.key_id) < 0) | |
1924 | return -ENOBUFS; | |
1925 | ||
1926 | /* TODO be32 */ | |
1927 | key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]); | |
1928 | /* TODO change naming hwaddr -> extended_addr | |
1929 | * check unique identifier short+pan OR extended_addr | |
1930 | */ | |
1931 | extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); | |
1932 | return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key); | |
1933 | } | |
1934 | ||
1935 | static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info) | |
1936 | { | |
1937 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
1938 | struct net_device *dev = info->user_ptr[1]; | |
1939 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
1940 | struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1]; | |
1941 | struct ieee802154_llsec_device_key key; | |
1942 | __le64 extended_addr; | |
1943 | ||
1944 | if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX, | |
1945 | info->attrs[NL802154_ATTR_SEC_DEVKEY], | |
1946 | nl802154_devkey_policy)) | |
1947 | return -EINVAL; | |
1948 | ||
1949 | if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]) | |
1950 | return -EINVAL; | |
1951 | ||
1952 | /* TODO change key.id ? */ | |
1953 | if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID], | |
1954 | &key.key_id) < 0) | |
1955 | return -ENOBUFS; | |
1956 | ||
1957 | /* TODO change naming hwaddr -> extended_addr | |
1958 | * check unique identifier short+pan OR extended_addr | |
1959 | */ | |
1960 | extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]); | |
1961 | return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key); | |
1962 | } | |
1963 | ||
1964 | static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid, | |
1965 | u32 seq, int flags, | |
1966 | struct cfg802154_registered_device *rdev, | |
1967 | struct net_device *dev, | |
1968 | const struct ieee802154_llsec_seclevel *sl) | |
1969 | { | |
1970 | void *hdr; | |
1971 | struct nlattr *nl_seclevel; | |
1972 | ||
1973 | hdr = nl802154hdr_put(msg, portid, seq, flags, cmd); | |
1974 | if (!hdr) | |
1975 | return -1; | |
1976 | ||
1977 | if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex)) | |
1978 | goto nla_put_failure; | |
1979 | ||
1980 | nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL); | |
1981 | if (!nl_seclevel) | |
1982 | goto nla_put_failure; | |
1983 | ||
1984 | if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) || | |
1985 | nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) || | |
1986 | nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE, | |
1987 | sl->device_override)) | |
1988 | goto nla_put_failure; | |
1989 | ||
1990 | if (sl->frame_type == NL802154_FRAME_CMD) { | |
1991 | if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME, | |
1992 | sl->cmd_frame_id)) | |
1993 | goto nla_put_failure; | |
1994 | } | |
1995 | ||
1996 | nla_nest_end(msg, nl_seclevel); | |
1997 | genlmsg_end(msg, hdr); | |
1998 | ||
1999 | return 0; | |
2000 | ||
2001 | nla_put_failure: | |
2002 | genlmsg_cancel(msg, hdr); | |
2003 | return -EMSGSIZE; | |
2004 | } | |
2005 | ||
2006 | static int | |
2007 | nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb) | |
2008 | { | |
2009 | struct cfg802154_registered_device *rdev = NULL; | |
2010 | struct ieee802154_llsec_seclevel *sl; | |
2011 | struct ieee802154_llsec_table *table; | |
2012 | struct wpan_dev *wpan_dev; | |
2013 | int err; | |
2014 | ||
2015 | err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev); | |
2016 | if (err) | |
2017 | return err; | |
2018 | ||
2019 | if (!wpan_dev->netdev) { | |
2020 | err = -EINVAL; | |
2021 | goto out_err; | |
2022 | } | |
2023 | ||
2024 | rdev_lock_llsec_table(rdev, wpan_dev); | |
2025 | rdev_get_llsec_table(rdev, wpan_dev, &table); | |
2026 | ||
2027 | /* TODO make it like station dump */ | |
2028 | if (cb->args[2]) | |
2029 | goto out; | |
2030 | ||
2031 | list_for_each_entry(sl, &table->security_levels, list) { | |
2032 | if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL, | |
2033 | NETLINK_CB(cb->skb).portid, | |
2034 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2035 | rdev, wpan_dev->netdev, sl) < 0) { | |
2036 | /* TODO */ | |
2037 | err = -EIO; | |
2038 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
2039 | goto out_err; | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | cb->args[2] = 1; | |
2044 | ||
2045 | out: | |
2046 | rdev_unlock_llsec_table(rdev, wpan_dev); | |
2047 | err = skb->len; | |
2048 | out_err: | |
2049 | nl802154_finish_wpan_dev_dump(rdev); | |
2050 | ||
2051 | return err; | |
2052 | } | |
2053 | ||
2054 | static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = { | |
2055 | [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 }, | |
2056 | [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 }, | |
2057 | [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 }, | |
2058 | [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 }, | |
2059 | }; | |
2060 | ||
2061 | static int | |
2062 | llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl) | |
2063 | { | |
2064 | struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1]; | |
2065 | ||
2066 | if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, | |
2067 | nl802154_seclevel_policy)) | |
2068 | return -EINVAL; | |
2069 | ||
2070 | memset(sl, 0, sizeof(*sl)); | |
2071 | ||
2072 | if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] || | |
2073 | !attrs[NL802154_SECLEVEL_ATTR_FRAME] || | |
2074 | !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]) | |
2075 | return -EINVAL; | |
2076 | ||
2077 | sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]); | |
2078 | sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]); | |
2079 | sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]); | |
2080 | if (sl->frame_type > NL802154_FRAME_MAX || | |
2081 | (sl->device_override != 0 && sl->device_override != 1)) | |
2082 | return -EINVAL; | |
2083 | ||
2084 | if (sl->frame_type == NL802154_FRAME_CMD) { | |
2085 | if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]) | |
2086 | return -EINVAL; | |
2087 | ||
2088 | sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]); | |
2089 | if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX) | |
2090 | return -EINVAL; | |
2091 | } | |
2092 | ||
2093 | return 0; | |
2094 | } | |
2095 | ||
2096 | static int nl802154_add_llsec_seclevel(struct sk_buff *skb, | |
2097 | struct genl_info *info) | |
2098 | { | |
2099 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
2100 | struct net_device *dev = info->user_ptr[1]; | |
2101 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
2102 | struct ieee802154_llsec_seclevel sl; | |
2103 | ||
2104 | if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], | |
2105 | &sl) < 0) | |
2106 | return -EINVAL; | |
2107 | ||
2108 | return rdev_add_seclevel(rdev, wpan_dev, &sl); | |
2109 | } | |
2110 | ||
2111 | static int nl802154_del_llsec_seclevel(struct sk_buff *skb, | |
2112 | struct genl_info *info) | |
2113 | { | |
2114 | struct cfg802154_registered_device *rdev = info->user_ptr[0]; | |
2115 | struct net_device *dev = info->user_ptr[1]; | |
2116 | struct wpan_dev *wpan_dev = dev->ieee802154_ptr; | |
2117 | struct ieee802154_llsec_seclevel sl; | |
2118 | ||
2119 | if (!info->attrs[NL802154_ATTR_SEC_LEVEL] || | |
2120 | llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL], | |
2121 | &sl) < 0) | |
2122 | return -EINVAL; | |
2123 | ||
2124 | return rdev_del_seclevel(rdev, wpan_dev, &sl); | |
2125 | } | |
2126 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
2127 | ||
2128 | #define NL802154_FLAG_NEED_WPAN_PHY 0x01 | |
2129 | #define NL802154_FLAG_NEED_NETDEV 0x02 | |
2130 | #define NL802154_FLAG_NEED_RTNL 0x04 | |
2131 | #define NL802154_FLAG_CHECK_NETDEV_UP 0x08 | |
2132 | #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\ | |
2133 | NL802154_FLAG_CHECK_NETDEV_UP) | |
2134 | #define NL802154_FLAG_NEED_WPAN_DEV 0x10 | |
2135 | #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\ | |
2136 | NL802154_FLAG_CHECK_NETDEV_UP) | |
2137 | ||
2138 | static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
2139 | struct genl_info *info) | |
2140 | { | |
2141 | struct cfg802154_registered_device *rdev; | |
2142 | struct wpan_dev *wpan_dev; | |
2143 | struct net_device *dev; | |
2144 | bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL; | |
2145 | ||
2146 | if (rtnl) | |
2147 | rtnl_lock(); | |
2148 | ||
2149 | if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) { | |
2150 | rdev = cfg802154_get_dev_from_info(genl_info_net(info), info); | |
2151 | if (IS_ERR(rdev)) { | |
2152 | if (rtnl) | |
2153 | rtnl_unlock(); | |
2154 | return PTR_ERR(rdev); | |
2155 | } | |
2156 | info->user_ptr[0] = rdev; | |
2157 | } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV || | |
2158 | ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { | |
2159 | ASSERT_RTNL(); | |
2160 | wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info), | |
2161 | info->attrs); | |
2162 | if (IS_ERR(wpan_dev)) { | |
2163 | if (rtnl) | |
2164 | rtnl_unlock(); | |
2165 | return PTR_ERR(wpan_dev); | |
2166 | } | |
2167 | ||
2168 | dev = wpan_dev->netdev; | |
2169 | rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy); | |
2170 | ||
2171 | if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) { | |
2172 | if (!dev) { | |
2173 | if (rtnl) | |
2174 | rtnl_unlock(); | |
2175 | return -EINVAL; | |
2176 | } | |
2177 | ||
2178 | info->user_ptr[1] = dev; | |
2179 | } else { | |
2180 | info->user_ptr[1] = wpan_dev; | |
2181 | } | |
2182 | ||
2183 | if (dev) { | |
2184 | if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP && | |
2185 | !netif_running(dev)) { | |
2186 | if (rtnl) | |
2187 | rtnl_unlock(); | |
2188 | return -ENETDOWN; | |
2189 | } | |
2190 | ||
2191 | dev_hold(dev); | |
2192 | } | |
2193 | ||
2194 | info->user_ptr[0] = rdev; | |
2195 | } | |
2196 | ||
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb, | |
2201 | struct genl_info *info) | |
2202 | { | |
2203 | if (info->user_ptr[1]) { | |
2204 | if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) { | |
2205 | struct wpan_dev *wpan_dev = info->user_ptr[1]; | |
2206 | ||
2207 | if (wpan_dev->netdev) | |
2208 | dev_put(wpan_dev->netdev); | |
2209 | } else { | |
2210 | dev_put(info->user_ptr[1]); | |
2211 | } | |
2212 | } | |
2213 | ||
2214 | if (ops->internal_flags & NL802154_FLAG_NEED_RTNL) | |
2215 | rtnl_unlock(); | |
2216 | } | |
2217 | ||
2218 | static const struct genl_ops nl802154_ops[] = { | |
2219 | { | |
2220 | .cmd = NL802154_CMD_GET_WPAN_PHY, | |
2221 | .doit = nl802154_get_wpan_phy, | |
2222 | .dumpit = nl802154_dump_wpan_phy, | |
2223 | .done = nl802154_dump_wpan_phy_done, | |
2224 | .policy = nl802154_policy, | |
2225 | /* can be retrieved by unprivileged users */ | |
2226 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2227 | NL802154_FLAG_NEED_RTNL, | |
2228 | }, | |
2229 | { | |
2230 | .cmd = NL802154_CMD_GET_INTERFACE, | |
2231 | .doit = nl802154_get_interface, | |
2232 | .dumpit = nl802154_dump_interface, | |
2233 | .policy = nl802154_policy, | |
2234 | /* can be retrieved by unprivileged users */ | |
2235 | .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | | |
2236 | NL802154_FLAG_NEED_RTNL, | |
2237 | }, | |
2238 | { | |
2239 | .cmd = NL802154_CMD_NEW_INTERFACE, | |
2240 | .doit = nl802154_new_interface, | |
2241 | .policy = nl802154_policy, | |
2242 | .flags = GENL_ADMIN_PERM, | |
2243 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2244 | NL802154_FLAG_NEED_RTNL, | |
2245 | }, | |
2246 | { | |
2247 | .cmd = NL802154_CMD_DEL_INTERFACE, | |
2248 | .doit = nl802154_del_interface, | |
2249 | .policy = nl802154_policy, | |
2250 | .flags = GENL_ADMIN_PERM, | |
2251 | .internal_flags = NL802154_FLAG_NEED_WPAN_DEV | | |
2252 | NL802154_FLAG_NEED_RTNL, | |
2253 | }, | |
2254 | { | |
2255 | .cmd = NL802154_CMD_SET_CHANNEL, | |
2256 | .doit = nl802154_set_channel, | |
2257 | .policy = nl802154_policy, | |
2258 | .flags = GENL_ADMIN_PERM, | |
2259 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2260 | NL802154_FLAG_NEED_RTNL, | |
2261 | }, | |
2262 | { | |
2263 | .cmd = NL802154_CMD_SET_CCA_MODE, | |
2264 | .doit = nl802154_set_cca_mode, | |
2265 | .policy = nl802154_policy, | |
2266 | .flags = GENL_ADMIN_PERM, | |
2267 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2268 | NL802154_FLAG_NEED_RTNL, | |
2269 | }, | |
2270 | { | |
2271 | .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, | |
2272 | .doit = nl802154_set_cca_ed_level, | |
2273 | .policy = nl802154_policy, | |
2274 | .flags = GENL_ADMIN_PERM, | |
2275 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2276 | NL802154_FLAG_NEED_RTNL, | |
2277 | }, | |
2278 | { | |
2279 | .cmd = NL802154_CMD_SET_TX_POWER, | |
2280 | .doit = nl802154_set_tx_power, | |
2281 | .policy = nl802154_policy, | |
2282 | .flags = GENL_ADMIN_PERM, | |
2283 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2284 | NL802154_FLAG_NEED_RTNL, | |
2285 | }, | |
2286 | { | |
2287 | .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS, | |
2288 | .doit = nl802154_wpan_phy_netns, | |
2289 | .policy = nl802154_policy, | |
2290 | .flags = GENL_ADMIN_PERM, | |
2291 | .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | | |
2292 | NL802154_FLAG_NEED_RTNL, | |
2293 | }, | |
2294 | { | |
2295 | .cmd = NL802154_CMD_SET_PAN_ID, | |
2296 | .doit = nl802154_set_pan_id, | |
2297 | .policy = nl802154_policy, | |
2298 | .flags = GENL_ADMIN_PERM, | |
2299 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2300 | NL802154_FLAG_NEED_RTNL, | |
2301 | }, | |
2302 | { | |
2303 | .cmd = NL802154_CMD_SET_SHORT_ADDR, | |
2304 | .doit = nl802154_set_short_addr, | |
2305 | .policy = nl802154_policy, | |
2306 | .flags = GENL_ADMIN_PERM, | |
2307 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2308 | NL802154_FLAG_NEED_RTNL, | |
2309 | }, | |
2310 | { | |
2311 | .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT, | |
2312 | .doit = nl802154_set_backoff_exponent, | |
2313 | .policy = nl802154_policy, | |
2314 | .flags = GENL_ADMIN_PERM, | |
2315 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2316 | NL802154_FLAG_NEED_RTNL, | |
2317 | }, | |
2318 | { | |
2319 | .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS, | |
2320 | .doit = nl802154_set_max_csma_backoffs, | |
2321 | .policy = nl802154_policy, | |
2322 | .flags = GENL_ADMIN_PERM, | |
2323 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2324 | NL802154_FLAG_NEED_RTNL, | |
2325 | }, | |
2326 | { | |
2327 | .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES, | |
2328 | .doit = nl802154_set_max_frame_retries, | |
2329 | .policy = nl802154_policy, | |
2330 | .flags = GENL_ADMIN_PERM, | |
2331 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2332 | NL802154_FLAG_NEED_RTNL, | |
2333 | }, | |
2334 | { | |
2335 | .cmd = NL802154_CMD_SET_LBT_MODE, | |
2336 | .doit = nl802154_set_lbt_mode, | |
2337 | .policy = nl802154_policy, | |
2338 | .flags = GENL_ADMIN_PERM, | |
2339 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2340 | NL802154_FLAG_NEED_RTNL, | |
2341 | }, | |
2342 | { | |
2343 | .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT, | |
2344 | .doit = nl802154_set_ackreq_default, | |
2345 | .policy = nl802154_policy, | |
2346 | .flags = GENL_ADMIN_PERM, | |
2347 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2348 | NL802154_FLAG_NEED_RTNL, | |
2349 | }, | |
2350 | #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL | |
2351 | { | |
2352 | .cmd = NL802154_CMD_SET_SEC_PARAMS, | |
2353 | .doit = nl802154_set_llsec_params, | |
2354 | .policy = nl802154_policy, | |
2355 | .flags = GENL_ADMIN_PERM, | |
2356 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2357 | NL802154_FLAG_NEED_RTNL, | |
2358 | }, | |
2359 | { | |
2360 | .cmd = NL802154_CMD_GET_SEC_KEY, | |
2361 | /* TODO .doit by matching key id? */ | |
2362 | .dumpit = nl802154_dump_llsec_key, | |
2363 | .policy = nl802154_policy, | |
2364 | .flags = GENL_ADMIN_PERM, | |
2365 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2366 | NL802154_FLAG_NEED_RTNL, | |
2367 | }, | |
2368 | { | |
2369 | .cmd = NL802154_CMD_NEW_SEC_KEY, | |
2370 | .doit = nl802154_add_llsec_key, | |
2371 | .policy = nl802154_policy, | |
2372 | .flags = GENL_ADMIN_PERM, | |
2373 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2374 | NL802154_FLAG_NEED_RTNL, | |
2375 | }, | |
2376 | { | |
2377 | .cmd = NL802154_CMD_DEL_SEC_KEY, | |
2378 | .doit = nl802154_del_llsec_key, | |
2379 | .policy = nl802154_policy, | |
2380 | .flags = GENL_ADMIN_PERM, | |
2381 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2382 | NL802154_FLAG_NEED_RTNL, | |
2383 | }, | |
2384 | /* TODO unique identifier must short+pan OR extended_addr */ | |
2385 | { | |
2386 | .cmd = NL802154_CMD_GET_SEC_DEV, | |
2387 | /* TODO .doit by matching extended_addr? */ | |
2388 | .dumpit = nl802154_dump_llsec_dev, | |
2389 | .policy = nl802154_policy, | |
2390 | .flags = GENL_ADMIN_PERM, | |
2391 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2392 | NL802154_FLAG_NEED_RTNL, | |
2393 | }, | |
2394 | { | |
2395 | .cmd = NL802154_CMD_NEW_SEC_DEV, | |
2396 | .doit = nl802154_add_llsec_dev, | |
2397 | .policy = nl802154_policy, | |
2398 | .flags = GENL_ADMIN_PERM, | |
2399 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2400 | NL802154_FLAG_NEED_RTNL, | |
2401 | }, | |
2402 | { | |
2403 | .cmd = NL802154_CMD_DEL_SEC_DEV, | |
2404 | .doit = nl802154_del_llsec_dev, | |
2405 | .policy = nl802154_policy, | |
2406 | .flags = GENL_ADMIN_PERM, | |
2407 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2408 | NL802154_FLAG_NEED_RTNL, | |
2409 | }, | |
2410 | /* TODO remove complete devkey, put it as nested? */ | |
2411 | { | |
2412 | .cmd = NL802154_CMD_GET_SEC_DEVKEY, | |
2413 | /* TODO doit by matching ??? */ | |
2414 | .dumpit = nl802154_dump_llsec_devkey, | |
2415 | .policy = nl802154_policy, | |
2416 | .flags = GENL_ADMIN_PERM, | |
2417 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2418 | NL802154_FLAG_NEED_RTNL, | |
2419 | }, | |
2420 | { | |
2421 | .cmd = NL802154_CMD_NEW_SEC_DEVKEY, | |
2422 | .doit = nl802154_add_llsec_devkey, | |
2423 | .policy = nl802154_policy, | |
2424 | .flags = GENL_ADMIN_PERM, | |
2425 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2426 | NL802154_FLAG_NEED_RTNL, | |
2427 | }, | |
2428 | { | |
2429 | .cmd = NL802154_CMD_DEL_SEC_DEVKEY, | |
2430 | .doit = nl802154_del_llsec_devkey, | |
2431 | .policy = nl802154_policy, | |
2432 | .flags = GENL_ADMIN_PERM, | |
2433 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2434 | NL802154_FLAG_NEED_RTNL, | |
2435 | }, | |
2436 | { | |
2437 | .cmd = NL802154_CMD_GET_SEC_LEVEL, | |
2438 | /* TODO .doit by matching frame_type? */ | |
2439 | .dumpit = nl802154_dump_llsec_seclevel, | |
2440 | .policy = nl802154_policy, | |
2441 | .flags = GENL_ADMIN_PERM, | |
2442 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2443 | NL802154_FLAG_NEED_RTNL, | |
2444 | }, | |
2445 | { | |
2446 | .cmd = NL802154_CMD_NEW_SEC_LEVEL, | |
2447 | .doit = nl802154_add_llsec_seclevel, | |
2448 | .policy = nl802154_policy, | |
2449 | .flags = GENL_ADMIN_PERM, | |
2450 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2451 | NL802154_FLAG_NEED_RTNL, | |
2452 | }, | |
2453 | { | |
2454 | .cmd = NL802154_CMD_DEL_SEC_LEVEL, | |
2455 | /* TODO match frame_type only? */ | |
2456 | .doit = nl802154_del_llsec_seclevel, | |
2457 | .policy = nl802154_policy, | |
2458 | .flags = GENL_ADMIN_PERM, | |
2459 | .internal_flags = NL802154_FLAG_NEED_NETDEV | | |
2460 | NL802154_FLAG_NEED_RTNL, | |
2461 | }, | |
2462 | #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ | |
2463 | }; | |
2464 | ||
2465 | static struct genl_family nl802154_fam __ro_after_init = { | |
2466 | .name = NL802154_GENL_NAME, /* have users key off the name instead */ | |
2467 | .hdrsize = 0, /* no private header */ | |
2468 | .version = 1, /* no particular meaning now */ | |
2469 | .maxattr = NL802154_ATTR_MAX, | |
2470 | .netnsok = true, | |
2471 | .pre_doit = nl802154_pre_doit, | |
2472 | .post_doit = nl802154_post_doit, | |
2473 | .module = THIS_MODULE, | |
2474 | .ops = nl802154_ops, | |
2475 | .n_ops = ARRAY_SIZE(nl802154_ops), | |
2476 | .mcgrps = nl802154_mcgrps, | |
2477 | .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps), | |
2478 | }; | |
2479 | ||
2480 | /* initialisation/exit functions */ | |
2481 | int __init nl802154_init(void) | |
2482 | { | |
2483 | return genl_register_family(&nl802154_fam); | |
2484 | } | |
2485 | ||
2486 | void nl802154_exit(void) | |
2487 | { | |
2488 | genl_unregister_family(&nl802154_fam); | |
2489 | } |