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Linux 4.8.3
[linux/fpc-iii.git] / net / ieee802154 / nl802154.c
blobd90a4ed5b8a037e1dacef4cac0c44b158efabbb8
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 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
30 struct genl_info *info);
31
32 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34
35 /* the netlink family */
36 static struct genl_family nl802154_fam = {
37 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
38 .name = NL802154_GENL_NAME, /* have users key off the name instead */
39 .hdrsize = 0, /* no private header */
40 .version = 1, /* no particular meaning now */
41 .maxattr = NL802154_ATTR_MAX,
42 .netnsok = true,
43 .pre_doit = nl802154_pre_doit,
44 .post_doit = nl802154_post_doit,
45 };
46
47 /* multicast groups */
48 enum nl802154_multicast_groups {
49 NL802154_MCGRP_CONFIG,
50 };
51
52 static const struct genl_multicast_group nl802154_mcgrps[] = {
53 [NL802154_MCGRP_CONFIG] = { .name = "config", },
54 };
55
56 /* returns ERR_PTR values */
57 static struct wpan_dev *
58 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
59 {
60 struct cfg802154_registered_device *rdev;
61 struct wpan_dev *result = NULL;
62 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
63 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
64 u64 wpan_dev_id;
65 int wpan_phy_idx = -1;
66 int ifidx = -1;
67
68 ASSERT_RTNL();
69
70 if (!have_ifidx && !have_wpan_dev_id)
71 return ERR_PTR(-EINVAL);
72
73 if (have_ifidx)
74 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
75 if (have_wpan_dev_id) {
76 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
77 wpan_phy_idx = wpan_dev_id >> 32;
78 }
79
80 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
81 struct wpan_dev *wpan_dev;
82
83 if (wpan_phy_net(&rdev->wpan_phy) != netns)
84 continue;
85
86 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
87 continue;
88
89 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
90 if (have_ifidx && wpan_dev->netdev &&
91 wpan_dev->netdev->ifindex == ifidx) {
92 result = wpan_dev;
93 break;
94 }
95 if (have_wpan_dev_id &&
96 wpan_dev->identifier == (u32)wpan_dev_id) {
97 result = wpan_dev;
98 break;
99 }
100 }
101
102 if (result)
103 break;
104 }
105
106 if (result)
107 return result;
108
109 return ERR_PTR(-ENODEV);
110 }
111
112 static struct cfg802154_registered_device *
113 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
114 {
115 struct cfg802154_registered_device *rdev = NULL, *tmp;
116 struct net_device *netdev;
117
118 ASSERT_RTNL();
119
120 if (!attrs[NL802154_ATTR_WPAN_PHY] &&
121 !attrs[NL802154_ATTR_IFINDEX] &&
122 !attrs[NL802154_ATTR_WPAN_DEV])
123 return ERR_PTR(-EINVAL);
124
125 if (attrs[NL802154_ATTR_WPAN_PHY])
126 rdev = cfg802154_rdev_by_wpan_phy_idx(
127 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
128
129 if (attrs[NL802154_ATTR_WPAN_DEV]) {
130 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
131 struct wpan_dev *wpan_dev;
132 bool found = false;
133
134 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
135 if (tmp) {
136 /* make sure wpan_dev exists */
137 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
138 if (wpan_dev->identifier != (u32)wpan_dev_id)
139 continue;
140 found = true;
141 break;
142 }
143
144 if (!found)
145 tmp = NULL;
146
147 if (rdev && tmp != rdev)
148 return ERR_PTR(-EINVAL);
149 rdev = tmp;
150 }
151 }
152
153 if (attrs[NL802154_ATTR_IFINDEX]) {
154 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
155
156 netdev = __dev_get_by_index(netns, ifindex);
157 if (netdev) {
158 if (netdev->ieee802154_ptr)
159 tmp = wpan_phy_to_rdev(
160 netdev->ieee802154_ptr->wpan_phy);
161 else
162 tmp = NULL;
163
164 /* not wireless device -- return error */
165 if (!tmp)
166 return ERR_PTR(-EINVAL);
167
168 /* mismatch -- return error */
169 if (rdev && tmp != rdev)
170 return ERR_PTR(-EINVAL);
171
172 rdev = tmp;
173 }
174 }
175
176 if (!rdev)
177 return ERR_PTR(-ENODEV);
178
179 if (netns != wpan_phy_net(&rdev->wpan_phy))
180 return ERR_PTR(-ENODEV);
181
182 return rdev;
183 }
184
185 /* This function returns a pointer to the driver
186 * that the genl_info item that is passed refers to.
187 *
188 * The result of this can be a PTR_ERR and hence must
189 * be checked with IS_ERR() for errors.
190 */
191 static struct cfg802154_registered_device *
192 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
193 {
194 return __cfg802154_rdev_from_attrs(netns, info->attrs);
195 }
196
197 /* policy for the attributes */
198 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
199 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
200 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
201 .len = 20-1 },
202
203 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
204 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
205 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
206
207 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
208
209 [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
210 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
211
212 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
213
214 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
215 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
216 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
217
218 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
219
220 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
221 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
222 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
223
224 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
225 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
226 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
227
228 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
229
230 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
231
232 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
233
234 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
235
236 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
237
238 [NL802154_ATTR_PID] = { .type = NLA_U32 },
239 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
240 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
241 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
242 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
243 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
244 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
245
246 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
247 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
248 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
249 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
250 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
251 };
252
253 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
254 static int
255 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
256 struct netlink_callback *cb,
257 struct cfg802154_registered_device **rdev,
258 struct wpan_dev **wpan_dev)
259 {
260 int err;
261
262 rtnl_lock();
263
264 if (!cb->args[0]) {
265 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
266 nl802154_fam.attrbuf, nl802154_fam.maxattr,
267 nl802154_policy);
268 if (err)
269 goto out_unlock;
270
271 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
272 nl802154_fam.attrbuf);
273 if (IS_ERR(*wpan_dev)) {
274 err = PTR_ERR(*wpan_dev);
275 goto out_unlock;
276 }
277 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
278 /* 0 is the first index - add 1 to parse only once */
279 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
280 cb->args[1] = (*wpan_dev)->identifier;
281 } else {
282 /* subtract the 1 again here */
283 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
284 struct wpan_dev *tmp;
285
286 if (!wpan_phy) {
287 err = -ENODEV;
288 goto out_unlock;
289 }
290 *rdev = wpan_phy_to_rdev(wpan_phy);
291 *wpan_dev = NULL;
292
293 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
294 if (tmp->identifier == cb->args[1]) {
295 *wpan_dev = tmp;
296 break;
297 }
298 }
299
300 if (!*wpan_dev) {
301 err = -ENODEV;
302 goto out_unlock;
303 }
304 }
305
306 return 0;
307 out_unlock:
308 rtnl_unlock();
309 return err;
310 }
311
312 static void
313 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
314 {
315 rtnl_unlock();
316 }
317 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
318
319 /* message building helper */
320 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
321 int flags, u8 cmd)
322 {
323 /* since there is no private header just add the generic one */
324 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
325 }
326
327 static int
328 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
329 {
330 struct nlattr *nl_flags = nla_nest_start(msg, attr);
331 int i;
332
333 if (!nl_flags)
334 return -ENOBUFS;
335
336 i = 0;
337 while (mask) {
338 if ((mask & 1) && nla_put_flag(msg, i))
339 return -ENOBUFS;
340
341 mask >>= 1;
342 i++;
343 }
344
345 nla_nest_end(msg, nl_flags);
346 return 0;
347 }
348
349 static int
350 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
351 struct sk_buff *msg)
352 {
353 struct nlattr *nl_page;
354 unsigned long page;
355
356 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
357 if (!nl_page)
358 return -ENOBUFS;
359
360 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
361 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
362 rdev->wpan_phy.supported.channels[page]))
363 return -ENOBUFS;
364 }
365 nla_nest_end(msg, nl_page);
366
367 return 0;
368 }
369
370 static int
371 nl802154_put_capabilities(struct sk_buff *msg,
372 struct cfg802154_registered_device *rdev)
373 {
374 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
375 struct nlattr *nl_caps, *nl_channels;
376 int i;
377
378 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS);
379 if (!nl_caps)
380 return -ENOBUFS;
381
382 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS);
383 if (!nl_channels)
384 return -ENOBUFS;
385
386 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
387 if (caps->channels[i]) {
388 if (nl802154_put_flags(msg, i, caps->channels[i]))
389 return -ENOBUFS;
390 }
391 }
392
393 nla_nest_end(msg, nl_channels);
394
395 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
396 struct nlattr *nl_ed_lvls;
397
398 nl_ed_lvls = nla_nest_start(msg,
399 NL802154_CAP_ATTR_CCA_ED_LEVELS);
400 if (!nl_ed_lvls)
401 return -ENOBUFS;
402
403 for (i = 0; i < caps->cca_ed_levels_size; i++) {
404 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
405 return -ENOBUFS;
406 }
407
408 nla_nest_end(msg, nl_ed_lvls);
409 }
410
411 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
412 struct nlattr *nl_tx_pwrs;
413
414 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS);
415 if (!nl_tx_pwrs)
416 return -ENOBUFS;
417
418 for (i = 0; i < caps->tx_powers_size; i++) {
419 if (nla_put_s32(msg, i, caps->tx_powers[i]))
420 return -ENOBUFS;
421 }
422
423 nla_nest_end(msg, nl_tx_pwrs);
424 }
425
426 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
427 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
428 caps->cca_modes) ||
429 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
430 caps->cca_opts))
431 return -ENOBUFS;
432 }
433
434 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
435 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
436 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
437 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
438 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
439 caps->min_csma_backoffs) ||
440 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
441 caps->max_csma_backoffs) ||
442 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
443 caps->min_frame_retries) ||
444 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
445 caps->max_frame_retries) ||
446 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
447 caps->iftypes) ||
448 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
449 return -ENOBUFS;
450
451 nla_nest_end(msg, nl_caps);
452
453 return 0;
454 }
455
456 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
457 enum nl802154_commands cmd,
458 struct sk_buff *msg, u32 portid, u32 seq,
459 int flags)
460 {
461 struct nlattr *nl_cmds;
462 void *hdr;
463 int i;
464
465 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
466 if (!hdr)
467 return -ENOBUFS;
468
469 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
470 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
471 wpan_phy_name(&rdev->wpan_phy)) ||
472 nla_put_u32(msg, NL802154_ATTR_GENERATION,
473 cfg802154_rdev_list_generation))
474 goto nla_put_failure;
475
476 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
477 goto finish;
478
479 /* DUMP PHY PIB */
480
481 /* current channel settings */
482 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
483 rdev->wpan_phy.current_page) ||
484 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
485 rdev->wpan_phy.current_channel))
486 goto nla_put_failure;
487
488 /* TODO remove this behaviour, we still keep support it for a while
489 * so users can change the behaviour to the new one.
490 */
491 if (nl802154_send_wpan_phy_channels(rdev, msg))
492 goto nla_put_failure;
493
494 /* cca mode */
495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
496 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
497 rdev->wpan_phy.cca.mode))
498 goto nla_put_failure;
499
500 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
501 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
502 rdev->wpan_phy.cca.opt))
503 goto nla_put_failure;
504 }
505 }
506
507 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
508 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
509 rdev->wpan_phy.transmit_power))
510 goto nla_put_failure;
511 }
512
513 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
514 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
515 rdev->wpan_phy.cca_ed_level))
516 goto nla_put_failure;
517 }
518
519 if (nl802154_put_capabilities(msg, rdev))
520 goto nla_put_failure;
521
522 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
523 if (!nl_cmds)
524 goto nla_put_failure;
525
526 i = 0;
527 #define CMD(op, n) \
528 do { \
529 if (rdev->ops->op) { \
530 i++; \
531 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
532 goto nla_put_failure; \
533 } \
534 } while (0)
535
536 CMD(add_virtual_intf, NEW_INTERFACE);
537 CMD(del_virtual_intf, DEL_INTERFACE);
538 CMD(set_channel, SET_CHANNEL);
539 CMD(set_pan_id, SET_PAN_ID);
540 CMD(set_short_addr, SET_SHORT_ADDR);
541 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
542 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
543 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
544 CMD(set_lbt_mode, SET_LBT_MODE);
545 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
546
547 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
548 CMD(set_tx_power, SET_TX_POWER);
549
550 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
551 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
552
553 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
554 CMD(set_cca_mode, SET_CCA_MODE);
555
556 #undef CMD
557 nla_nest_end(msg, nl_cmds);
558
559 finish:
560 genlmsg_end(msg, hdr);
561 return 0;
562
563 nla_put_failure:
564 genlmsg_cancel(msg, hdr);
565 return -EMSGSIZE;
566 }
567
568 struct nl802154_dump_wpan_phy_state {
569 s64 filter_wpan_phy;
570 long start;
571
572 };
573
574 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
575 struct netlink_callback *cb,
576 struct nl802154_dump_wpan_phy_state *state)
577 {
578 struct nlattr **tb = nl802154_fam.attrbuf;
579 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
580 tb, nl802154_fam.maxattr, nl802154_policy);
581
582 /* TODO check if we can handle error here,
583 * we have no backward compatibility
584 */
585 if (ret)
586 return 0;
587
588 if (tb[NL802154_ATTR_WPAN_PHY])
589 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
590 if (tb[NL802154_ATTR_WPAN_DEV])
591 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
592 if (tb[NL802154_ATTR_IFINDEX]) {
593 struct net_device *netdev;
594 struct cfg802154_registered_device *rdev;
595 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
596
597 netdev = __dev_get_by_index(&init_net, ifidx);
598 if (!netdev)
599 return -ENODEV;
600 if (netdev->ieee802154_ptr) {
601 rdev = wpan_phy_to_rdev(
602 netdev->ieee802154_ptr->wpan_phy);
603 state->filter_wpan_phy = rdev->wpan_phy_idx;
604 }
605 }
606
607 return 0;
608 }
609
610 static int
611 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
612 {
613 int idx = 0, ret;
614 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
615 struct cfg802154_registered_device *rdev;
616
617 rtnl_lock();
618 if (!state) {
619 state = kzalloc(sizeof(*state), GFP_KERNEL);
620 if (!state) {
621 rtnl_unlock();
622 return -ENOMEM;
623 }
624 state->filter_wpan_phy = -1;
625 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
626 if (ret) {
627 kfree(state);
628 rtnl_unlock();
629 return ret;
630 }
631 cb->args[0] = (long)state;
632 }
633
634 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
635 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
636 continue;
637 if (++idx <= state->start)
638 continue;
639 if (state->filter_wpan_phy != -1 &&
640 state->filter_wpan_phy != rdev->wpan_phy_idx)
641 continue;
642 /* attempt to fit multiple wpan_phy data chunks into the skb */
643 ret = nl802154_send_wpan_phy(rdev,
644 NL802154_CMD_NEW_WPAN_PHY,
645 skb,
646 NETLINK_CB(cb->skb).portid,
647 cb->nlh->nlmsg_seq, NLM_F_MULTI);
648 if (ret < 0) {
649 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
650 !skb->len && cb->min_dump_alloc < 4096) {
651 cb->min_dump_alloc = 4096;
652 rtnl_unlock();
653 return 1;
654 }
655 idx--;
656 break;
657 }
658 break;
659 }
660 rtnl_unlock();
661
662 state->start = idx;
663
664 return skb->len;
665 }
666
667 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
668 {
669 kfree((void *)cb->args[0]);
670 return 0;
671 }
672
673 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
674 {
675 struct sk_buff *msg;
676 struct cfg802154_registered_device *rdev = info->user_ptr[0];
677
678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
679 if (!msg)
680 return -ENOMEM;
681
682 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
683 info->snd_portid, info->snd_seq, 0) < 0) {
684 nlmsg_free(msg);
685 return -ENOBUFS;
686 }
687
688 return genlmsg_reply(msg, info);
689 }
690
691 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
692 {
693 return (u64)wpan_dev->identifier |
694 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
695 }
696
697 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
698 #include <net/ieee802154_netdev.h>
699
700 static int
701 ieee802154_llsec_send_key_id(struct sk_buff *msg,
702 const struct ieee802154_llsec_key_id *desc)
703 {
704 struct nlattr *nl_dev_addr;
705
706 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
707 return -ENOBUFS;
708
709 switch (desc->mode) {
710 case NL802154_KEY_ID_MODE_IMPLICIT:
711 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT);
712 if (!nl_dev_addr)
713 return -ENOBUFS;
714
715 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
716 desc->device_addr.pan_id) ||
717 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
718 desc->device_addr.mode))
719 return -ENOBUFS;
720
721 switch (desc->device_addr.mode) {
722 case NL802154_DEV_ADDR_SHORT:
723 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
724 desc->device_addr.short_addr))
725 return -ENOBUFS;
726 break;
727 case NL802154_DEV_ADDR_EXTENDED:
728 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
729 desc->device_addr.extended_addr,
730 NL802154_DEV_ADDR_ATTR_PAD))
731 return -ENOBUFS;
732 break;
733 default:
734 /* userspace should handle unknown */
735 break;
736 }
737
738 nla_nest_end(msg, nl_dev_addr);
739 break;
740 case NL802154_KEY_ID_MODE_INDEX:
741 break;
742 case NL802154_KEY_ID_MODE_INDEX_SHORT:
743 /* TODO renmae short_source? */
744 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
745 desc->short_source))
746 return -ENOBUFS;
747 break;
748 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
749 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
750 desc->extended_source,
751 NL802154_KEY_ID_ATTR_PAD))
752 return -ENOBUFS;
753 break;
754 default:
755 /* userspace should handle unknown */
756 break;
757 }
758
759 /* TODO key_id to key_idx ? Check naming */
760 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
761 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
762 return -ENOBUFS;
763 }
764
765 return 0;
766 }
767
768 static int nl802154_get_llsec_params(struct sk_buff *msg,
769 struct cfg802154_registered_device *rdev,
770 struct wpan_dev *wpan_dev)
771 {
772 struct nlattr *nl_key_id;
773 struct ieee802154_llsec_params params;
774 int ret;
775
776 ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
777 if (ret < 0)
778 return ret;
779
780 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
781 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
782 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
783 params.frame_counter))
784 return -ENOBUFS;
785
786 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
787 if (!nl_key_id)
788 return -ENOBUFS;
789
790 ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
791 if (ret < 0)
792 return ret;
793
794 nla_nest_end(msg, nl_key_id);
795
796 return 0;
797 }
798 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
799
800 static int
801 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
802 struct cfg802154_registered_device *rdev,
803 struct wpan_dev *wpan_dev)
804 {
805 struct net_device *dev = wpan_dev->netdev;
806 void *hdr;
807
808 hdr = nl802154hdr_put(msg, portid, seq, flags,
809 NL802154_CMD_NEW_INTERFACE);
810 if (!hdr)
811 return -1;
812
813 if (dev &&
814 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
815 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
816 goto nla_put_failure;
817
818 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
819 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
820 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
821 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
822 nla_put_u32(msg, NL802154_ATTR_GENERATION,
823 rdev->devlist_generation ^
824 (cfg802154_rdev_list_generation << 2)))
825 goto nla_put_failure;
826
827 /* address settings */
828 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
829 wpan_dev->extended_addr,
830 NL802154_ATTR_PAD) ||
831 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
832 wpan_dev->short_addr) ||
833 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
834 goto nla_put_failure;
835
836 /* ARET handling */
837 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
838 wpan_dev->frame_retries) ||
839 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
840 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
841 wpan_dev->csma_retries) ||
842 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
843 goto nla_put_failure;
844
845 /* listen before transmit */
846 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
847 goto nla_put_failure;
848
849 /* ackreq default behaviour */
850 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
851 goto nla_put_failure;
852
853 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
854 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
855 goto nla_put_failure;
856 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
857
858 genlmsg_end(msg, hdr);
859 return 0;
860
861 nla_put_failure:
862 genlmsg_cancel(msg, hdr);
863 return -EMSGSIZE;
864 }
865
866 static int
867 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
868 {
869 int wp_idx = 0;
870 int if_idx = 0;
871 int wp_start = cb->args[0];
872 int if_start = cb->args[1];
873 struct cfg802154_registered_device *rdev;
874 struct wpan_dev *wpan_dev;
875
876 rtnl_lock();
877 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
878 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
879 continue;
880 if (wp_idx < wp_start) {
881 wp_idx++;
882 continue;
883 }
884 if_idx = 0;
885
886 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
887 if (if_idx < if_start) {
888 if_idx++;
889 continue;
890 }
891 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
892 cb->nlh->nlmsg_seq, NLM_F_MULTI,
893 rdev, wpan_dev) < 0) {
894 goto out;
895 }
896 if_idx++;
897 }
898
899 wp_idx++;
900 }
901 out:
902 rtnl_unlock();
903
904 cb->args[0] = wp_idx;
905 cb->args[1] = if_idx;
906
907 return skb->len;
908 }
909
910 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
911 {
912 struct sk_buff *msg;
913 struct cfg802154_registered_device *rdev = info->user_ptr[0];
914 struct wpan_dev *wdev = info->user_ptr[1];
915
916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
917 if (!msg)
918 return -ENOMEM;
919
920 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
921 rdev, wdev) < 0) {
922 nlmsg_free(msg);
923 return -ENOBUFS;
924 }
925
926 return genlmsg_reply(msg, info);
927 }
928
929 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
930 {
931 struct cfg802154_registered_device *rdev = info->user_ptr[0];
932 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
933 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
934
935 /* TODO avoid failing a new interface
936 * creation due to pending removal?
937 */
938
939 if (!info->attrs[NL802154_ATTR_IFNAME])
940 return -EINVAL;
941
942 if (info->attrs[NL802154_ATTR_IFTYPE]) {
943 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
944 if (type > NL802154_IFTYPE_MAX ||
945 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
946 return -EINVAL;
947 }
948
949 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
950 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
951
952 if (!rdev->ops->add_virtual_intf)
953 return -EOPNOTSUPP;
954
955 return rdev_add_virtual_intf(rdev,
956 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
957 NET_NAME_USER, type, extended_addr);
958 }
959
960 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
961 {
962 struct cfg802154_registered_device *rdev = info->user_ptr[0];
963 struct wpan_dev *wpan_dev = info->user_ptr[1];
964
965 if (!rdev->ops->del_virtual_intf)
966 return -EOPNOTSUPP;
967
968 /* If we remove a wpan device without a netdev then clear
969 * user_ptr[1] so that nl802154_post_doit won't dereference it
970 * to check if it needs to do dev_put(). Otherwise it crashes
971 * since the wpan_dev has been freed, unlike with a netdev where
972 * we need the dev_put() for the netdev to really be freed.
973 */
974 if (!wpan_dev->netdev)
975 info->user_ptr[1] = NULL;
976
977 return rdev_del_virtual_intf(rdev, wpan_dev);
978 }
979
980 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
981 {
982 struct cfg802154_registered_device *rdev = info->user_ptr[0];
983 u8 channel, page;
984
985 if (!info->attrs[NL802154_ATTR_PAGE] ||
986 !info->attrs[NL802154_ATTR_CHANNEL])
987 return -EINVAL;
988
989 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
990 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
991
992 /* check 802.15.4 constraints */
993 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
994 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
995 return -EINVAL;
996
997 return rdev_set_channel(rdev, page, channel);
998 }
999
1000 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
1001 {
1002 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1003 struct wpan_phy_cca cca;
1004
1005 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
1006 return -EOPNOTSUPP;
1007
1008 if (!info->attrs[NL802154_ATTR_CCA_MODE])
1009 return -EINVAL;
1010
1011 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1012 /* checking 802.15.4 constraints */
1013 if (cca.mode < NL802154_CCA_ENERGY ||
1014 cca.mode > NL802154_CCA_ATTR_MAX ||
1015 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1016 return -EINVAL;
1017
1018 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1019 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1020 return -EINVAL;
1021
1022 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1023 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1024 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1025 return -EINVAL;
1026 }
1027
1028 return rdev_set_cca_mode(rdev, &cca);
1029 }
1030
1031 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1032 {
1033 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1034 s32 ed_level;
1035 int i;
1036
1037 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1038 return -EOPNOTSUPP;
1039
1040 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1041 return -EINVAL;
1042
1043 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1044
1045 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1046 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1047 return rdev_set_cca_ed_level(rdev, ed_level);
1048 }
1049
1050 return -EINVAL;
1051 }
1052
1053 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1054 {
1055 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1056 s32 power;
1057 int i;
1058
1059 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1060 return -EOPNOTSUPP;
1061
1062 if (!info->attrs[NL802154_ATTR_TX_POWER])
1063 return -EINVAL;
1064
1065 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1066
1067 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1068 if (power == rdev->wpan_phy.supported.tx_powers[i])
1069 return rdev_set_tx_power(rdev, power);
1070 }
1071
1072 return -EINVAL;
1073 }
1074
1075 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1076 {
1077 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1078 struct net_device *dev = info->user_ptr[1];
1079 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1080 __le16 pan_id;
1081
1082 /* conflict here while tx/rx calls */
1083 if (netif_running(dev))
1084 return -EBUSY;
1085
1086 if (wpan_dev->lowpan_dev) {
1087 if (netif_running(wpan_dev->lowpan_dev))
1088 return -EBUSY;
1089 }
1090
1091 /* don't change address fields on monitor */
1092 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1093 !info->attrs[NL802154_ATTR_PAN_ID])
1094 return -EINVAL;
1095
1096 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1097
1098 /* TODO
1099 * I am not sure about to check here on broadcast pan_id.
1100 * Broadcast is a valid setting, comment from 802.15.4:
1101 * If this value is 0xffff, the device is not associated.
1102 *
1103 * This could useful to simple deassociate an device.
1104 */
1105 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1106 return -EINVAL;
1107
1108 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1109 }
1110
1111 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1112 {
1113 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1114 struct net_device *dev = info->user_ptr[1];
1115 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1116 __le16 short_addr;
1117
1118 /* conflict here while tx/rx calls */
1119 if (netif_running(dev))
1120 return -EBUSY;
1121
1122 if (wpan_dev->lowpan_dev) {
1123 if (netif_running(wpan_dev->lowpan_dev))
1124 return -EBUSY;
1125 }
1126
1127 /* don't change address fields on monitor */
1128 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1129 !info->attrs[NL802154_ATTR_SHORT_ADDR])
1130 return -EINVAL;
1131
1132 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1133
1134 /* TODO
1135 * I am not sure about to check here on broadcast short_addr.
1136 * Broadcast is a valid setting, comment from 802.15.4:
1137 * A value of 0xfffe indicates that the device has
1138 * associated but has not been allocated an address. A
1139 * value of 0xffff indicates that the device does not
1140 * have a short address.
1141 *
1142 * I think we should allow to set these settings but
1143 * don't allow to allow socket communication with it.
1144 */
1145 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1146 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1147 return -EINVAL;
1148
1149 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1150 }
1151
1152 static int
1153 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1154 {
1155 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1156 struct net_device *dev = info->user_ptr[1];
1157 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1158 u8 min_be, max_be;
1159
1160 /* should be set on netif open inside phy settings */
1161 if (netif_running(dev))
1162 return -EBUSY;
1163
1164 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1165 !info->attrs[NL802154_ATTR_MAX_BE])
1166 return -EINVAL;
1167
1168 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1169 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1170
1171 /* check 802.15.4 constraints */
1172 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1173 min_be > rdev->wpan_phy.supported.max_minbe ||
1174 max_be < rdev->wpan_phy.supported.min_maxbe ||
1175 max_be > rdev->wpan_phy.supported.max_maxbe ||
1176 min_be > max_be)
1177 return -EINVAL;
1178
1179 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1180 }
1181
1182 static int
1183 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1184 {
1185 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1186 struct net_device *dev = info->user_ptr[1];
1187 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1188 u8 max_csma_backoffs;
1189
1190 /* conflict here while other running iface settings */
1191 if (netif_running(dev))
1192 return -EBUSY;
1193
1194 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1195 return -EINVAL;
1196
1197 max_csma_backoffs = nla_get_u8(
1198 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1199
1200 /* check 802.15.4 constraints */
1201 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1202 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1203 return -EINVAL;
1204
1205 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1206 }
1207
1208 static int
1209 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1210 {
1211 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1212 struct net_device *dev = info->user_ptr[1];
1213 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1214 s8 max_frame_retries;
1215
1216 if (netif_running(dev))
1217 return -EBUSY;
1218
1219 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1220 return -EINVAL;
1221
1222 max_frame_retries = nla_get_s8(
1223 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1224
1225 /* check 802.15.4 constraints */
1226 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1227 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1228 return -EINVAL;
1229
1230 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1231 }
1232
1233 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1234 {
1235 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1236 struct net_device *dev = info->user_ptr[1];
1237 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1238 int mode;
1239
1240 if (netif_running(dev))
1241 return -EBUSY;
1242
1243 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1244 return -EINVAL;
1245
1246 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1247
1248 if (mode != 0 && mode != 1)
1249 return -EINVAL;
1250
1251 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1252 return -EINVAL;
1253
1254 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1255 }
1256
1257 static int
1258 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1259 {
1260 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1261 struct net_device *dev = info->user_ptr[1];
1262 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1263 int ackreq;
1264
1265 if (netif_running(dev))
1266 return -EBUSY;
1267
1268 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1269 return -EINVAL;
1270
1271 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1272
1273 if (ackreq != 0 && ackreq != 1)
1274 return -EINVAL;
1275
1276 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1277 }
1278
1279 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1280 {
1281 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1282 struct net *net;
1283 int err;
1284
1285 if (info->attrs[NL802154_ATTR_PID]) {
1286 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1287
1288 net = get_net_ns_by_pid(pid);
1289 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1290 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1291
1292 net = get_net_ns_by_fd(fd);
1293 } else {
1294 return -EINVAL;
1295 }
1296
1297 if (IS_ERR(net))
1298 return PTR_ERR(net);
1299
1300 err = 0;
1301
1302 /* check if anything to do */
1303 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1304 err = cfg802154_switch_netns(rdev, net);
1305
1306 put_net(net);
1307 return err;
1308 }
1309
1310 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1311 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1312 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1313 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1314 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1315 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1316 };
1317
1318 static int
1319 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1320 struct ieee802154_addr *addr)
1321 {
1322 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1323
1324 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla,
1325 nl802154_dev_addr_policy))
1326 return -EINVAL;
1327
1328 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1329 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
1330 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1331 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1332 return -EINVAL;
1333
1334 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1335 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1336 switch (addr->mode) {
1337 case NL802154_DEV_ADDR_SHORT:
1338 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1339 break;
1340 case NL802154_DEV_ADDR_EXTENDED:
1341 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1342 break;
1343 default:
1344 return -EINVAL;
1345 }
1346
1347 return 0;
1348 }
1349
1350 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1351 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1352 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1353 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1354 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1355 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1356 };
1357
1358 static int
1359 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1360 struct ieee802154_llsec_key_id *desc)
1361 {
1362 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1363
1364 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla,
1365 nl802154_key_id_policy))
1366 return -EINVAL;
1367
1368 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1369 return -EINVAL;
1370
1371 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1372 switch (desc->mode) {
1373 case NL802154_KEY_ID_MODE_IMPLICIT:
1374 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1375 return -EINVAL;
1376
1377 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1378 &desc->device_addr) < 0)
1379 return -EINVAL;
1380 break;
1381 case NL802154_KEY_ID_MODE_INDEX:
1382 break;
1383 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1384 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1385 return -EINVAL;
1386
1387 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1388 break;
1389 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1390 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1391 return -EINVAL;
1392
1393 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1394 break;
1395 default:
1396 return -EINVAL;
1397 }
1398
1399 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1400 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1401 return -EINVAL;
1402
1403 /* TODO change id to idx */
1404 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1405 }
1406
1407 return 0;
1408 }
1409
1410 static int nl802154_set_llsec_params(struct sk_buff *skb,
1411 struct genl_info *info)
1412 {
1413 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1414 struct net_device *dev = info->user_ptr[1];
1415 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1416 struct ieee802154_llsec_params params;
1417 u32 changed = 0;
1418 int ret;
1419
1420 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1421 u8 enabled;
1422
1423 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1424 if (enabled != 0 && enabled != 1)
1425 return -EINVAL;
1426
1427 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1428 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1429 }
1430
1431 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1432 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1433 &params.out_key);
1434 if (ret < 0)
1435 return ret;
1436
1437 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1438 }
1439
1440 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1441 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1442 if (params.out_level > NL802154_SECLEVEL_MAX)
1443 return -EINVAL;
1444
1445 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1446 }
1447
1448 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1449 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1450 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1451 }
1452
1453 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1454 }
1455
1456 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1457 u32 seq, int flags,
1458 struct cfg802154_registered_device *rdev,
1459 struct net_device *dev,
1460 const struct ieee802154_llsec_key_entry *key)
1461 {
1462 void *hdr;
1463 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1464 struct nlattr *nl_key, *nl_key_id;
1465
1466 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1467 if (!hdr)
1468 return -1;
1469
1470 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1471 goto nla_put_failure;
1472
1473 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY);
1474 if (!nl_key)
1475 goto nla_put_failure;
1476
1477 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID);
1478 if (!nl_key_id)
1479 goto nla_put_failure;
1480
1481 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1482 goto nla_put_failure;
1483
1484 nla_nest_end(msg, nl_key_id);
1485
1486 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1487 key->key->frame_types))
1488 goto nla_put_failure;
1489
1490 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1491 /* TODO for each nested */
1492 memset(commands, 0, sizeof(commands));
1493 commands[7] = key->key->cmd_frame_ids;
1494 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1495 sizeof(commands), commands))
1496 goto nla_put_failure;
1497 }
1498
1499 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1500 key->key->key))
1501 goto nla_put_failure;
1502
1503 nla_nest_end(msg, nl_key);
1504 genlmsg_end(msg, hdr);
1505
1506 return 0;
1507
1508 nla_put_failure:
1509 genlmsg_cancel(msg, hdr);
1510 return -EMSGSIZE;
1511 }
1512
1513 static int
1514 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1515 {
1516 struct cfg802154_registered_device *rdev = NULL;
1517 struct ieee802154_llsec_key_entry *key;
1518 struct ieee802154_llsec_table *table;
1519 struct wpan_dev *wpan_dev;
1520 int err;
1521
1522 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1523 if (err)
1524 return err;
1525
1526 if (!wpan_dev->netdev) {
1527 err = -EINVAL;
1528 goto out_err;
1529 }
1530
1531 rdev_lock_llsec_table(rdev, wpan_dev);
1532 rdev_get_llsec_table(rdev, wpan_dev, &table);
1533
1534 /* TODO make it like station dump */
1535 if (cb->args[2])
1536 goto out;
1537
1538 list_for_each_entry(key, &table->keys, list) {
1539 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1540 NETLINK_CB(cb->skb).portid,
1541 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1542 rdev, wpan_dev->netdev, key) < 0) {
1543 /* TODO */
1544 err = -EIO;
1545 rdev_unlock_llsec_table(rdev, wpan_dev);
1546 goto out_err;
1547 }
1548 }
1549
1550 cb->args[2] = 1;
1551
1552 out:
1553 rdev_unlock_llsec_table(rdev, wpan_dev);
1554 err = skb->len;
1555 out_err:
1556 nl802154_finish_wpan_dev_dump(rdev);
1557
1558 return err;
1559 }
1560
1561 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1562 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1563 /* TODO handle it as for_each_nested and NLA_FLAG? */
1564 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1565 /* TODO handle it as for_each_nested, not static array? */
1566 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1567 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1568 };
1569
1570 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1571 {
1572 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1573 struct net_device *dev = info->user_ptr[1];
1574 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1575 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1576 struct ieee802154_llsec_key key = { };
1577 struct ieee802154_llsec_key_id id = { };
1578 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1579
1580 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1581 info->attrs[NL802154_ATTR_SEC_KEY],
1582 nl802154_key_policy))
1583 return -EINVAL;
1584
1585 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1586 !attrs[NL802154_KEY_ATTR_BYTES])
1587 return -EINVAL;
1588
1589 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1590 return -ENOBUFS;
1591
1592 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1593 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1594 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1595 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1596 return -EINVAL;
1597
1598 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1599 /* TODO for each nested */
1600 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1601 NL802154_CMD_FRAME_NR_IDS / 8);
1602
1603 /* TODO understand the -EINVAL logic here? last condition */
1604 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1605 commands[4] || commands[5] || commands[6] ||
1606 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1607 return -EINVAL;
1608
1609 key.cmd_frame_ids = commands[7];
1610 } else {
1611 key.cmd_frame_ids = 0;
1612 }
1613
1614 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1615
1616 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1617 return -ENOBUFS;
1618
1619 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1620 }
1621
1622 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1623 {
1624 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1625 struct net_device *dev = info->user_ptr[1];
1626 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1627 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1628 struct ieee802154_llsec_key_id id;
1629
1630 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1631 info->attrs[NL802154_ATTR_SEC_KEY],
1632 nl802154_key_policy))
1633 return -EINVAL;
1634
1635 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1636 return -ENOBUFS;
1637
1638 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1639 }
1640
1641 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1642 u32 seq, int flags,
1643 struct cfg802154_registered_device *rdev,
1644 struct net_device *dev,
1645 const struct ieee802154_llsec_device *dev_desc)
1646 {
1647 void *hdr;
1648 struct nlattr *nl_device;
1649
1650 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1651 if (!hdr)
1652 return -1;
1653
1654 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1655 goto nla_put_failure;
1656
1657 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE);
1658 if (!nl_device)
1659 goto nla_put_failure;
1660
1661 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1662 dev_desc->frame_counter) ||
1663 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1664 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1665 dev_desc->short_addr) ||
1666 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1667 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1668 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1669 dev_desc->seclevel_exempt) ||
1670 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1671 goto nla_put_failure;
1672
1673 nla_nest_end(msg, nl_device);
1674 genlmsg_end(msg, hdr);
1675
1676 return 0;
1677
1678 nla_put_failure:
1679 genlmsg_cancel(msg, hdr);
1680 return -EMSGSIZE;
1681 }
1682
1683 static int
1684 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1685 {
1686 struct cfg802154_registered_device *rdev = NULL;
1687 struct ieee802154_llsec_device *dev;
1688 struct ieee802154_llsec_table *table;
1689 struct wpan_dev *wpan_dev;
1690 int err;
1691
1692 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1693 if (err)
1694 return err;
1695
1696 if (!wpan_dev->netdev) {
1697 err = -EINVAL;
1698 goto out_err;
1699 }
1700
1701 rdev_lock_llsec_table(rdev, wpan_dev);
1702 rdev_get_llsec_table(rdev, wpan_dev, &table);
1703
1704 /* TODO make it like station dump */
1705 if (cb->args[2])
1706 goto out;
1707
1708 list_for_each_entry(dev, &table->devices, list) {
1709 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1710 NETLINK_CB(cb->skb).portid,
1711 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1712 rdev, wpan_dev->netdev, dev) < 0) {
1713 /* TODO */
1714 err = -EIO;
1715 rdev_unlock_llsec_table(rdev, wpan_dev);
1716 goto out_err;
1717 }
1718 }
1719
1720 cb->args[2] = 1;
1721
1722 out:
1723 rdev_unlock_llsec_table(rdev, wpan_dev);
1724 err = skb->len;
1725 out_err:
1726 nl802154_finish_wpan_dev_dump(rdev);
1727
1728 return err;
1729 }
1730
1731 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1732 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1733 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1734 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1735 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1736 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1737 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1738 };
1739
1740 static int
1741 ieee802154_llsec_parse_device(struct nlattr *nla,
1742 struct ieee802154_llsec_device *dev)
1743 {
1744 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1745
1746 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla,
1747 nl802154_dev_policy))
1748 return -EINVAL;
1749
1750 memset(dev, 0, sizeof(*dev));
1751
1752 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1753 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1754 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1755 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1756 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1757 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1758 return -EINVAL;
1759
1760 /* TODO be32 */
1761 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1762 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1763 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1764 /* TODO rename hwaddr to extended_addr */
1765 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1766 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1767 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1768
1769 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1770 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1771 return -EINVAL;
1772
1773 return 0;
1774 }
1775
1776 static int nl802154_add_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 ieee802154_llsec_device dev_desc;
1782
1783 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1784 &dev_desc) < 0)
1785 return -EINVAL;
1786
1787 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1788 }
1789
1790 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1791 {
1792 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1793 struct net_device *dev = info->user_ptr[1];
1794 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1795 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1796 __le64 extended_addr;
1797
1798 if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1799 info->attrs[NL802154_ATTR_SEC_DEVICE],
1800 nl802154_dev_policy))
1801 return -EINVAL;
1802
1803 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1804 return -EINVAL;
1805
1806 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1807 return rdev_del_device(rdev, wpan_dev, extended_addr);
1808 }
1809
1810 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1811 u32 seq, int flags,
1812 struct cfg802154_registered_device *rdev,
1813 struct net_device *dev, __le64 extended_addr,
1814 const struct ieee802154_llsec_device_key *devkey)
1815 {
1816 void *hdr;
1817 struct nlattr *nl_devkey, *nl_key_id;
1818
1819 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1820 if (!hdr)
1821 return -1;
1822
1823 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1824 goto nla_put_failure;
1825
1826 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY);
1827 if (!nl_devkey)
1828 goto nla_put_failure;
1829
1830 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1831 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1832 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1833 devkey->frame_counter))
1834 goto nla_put_failure;
1835
1836 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID);
1837 if (!nl_key_id)
1838 goto nla_put_failure;
1839
1840 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1841 goto nla_put_failure;
1842
1843 nla_nest_end(msg, nl_key_id);
1844 nla_nest_end(msg, nl_devkey);
1845 genlmsg_end(msg, hdr);
1846
1847 return 0;
1848
1849 nla_put_failure:
1850 genlmsg_cancel(msg, hdr);
1851 return -EMSGSIZE;
1852 }
1853
1854 static int
1855 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1856 {
1857 struct cfg802154_registered_device *rdev = NULL;
1858 struct ieee802154_llsec_device_key *kpos;
1859 struct ieee802154_llsec_device *dpos;
1860 struct ieee802154_llsec_table *table;
1861 struct wpan_dev *wpan_dev;
1862 int err;
1863
1864 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1865 if (err)
1866 return err;
1867
1868 if (!wpan_dev->netdev) {
1869 err = -EINVAL;
1870 goto out_err;
1871 }
1872
1873 rdev_lock_llsec_table(rdev, wpan_dev);
1874 rdev_get_llsec_table(rdev, wpan_dev, &table);
1875
1876 /* TODO make it like station dump */
1877 if (cb->args[2])
1878 goto out;
1879
1880 /* TODO look if remove devkey and do some nested attribute */
1881 list_for_each_entry(dpos, &table->devices, list) {
1882 list_for_each_entry(kpos, &dpos->keys, list) {
1883 if (nl802154_send_devkey(skb,
1884 NL802154_CMD_NEW_SEC_LEVEL,
1885 NETLINK_CB(cb->skb).portid,
1886 cb->nlh->nlmsg_seq,
1887 NLM_F_MULTI, rdev,
1888 wpan_dev->netdev,
1889 dpos->hwaddr,
1890 kpos) < 0) {
1891 /* TODO */
1892 err = -EIO;
1893 rdev_unlock_llsec_table(rdev, wpan_dev);
1894 goto out_err;
1895 }
1896 }
1897 }
1898
1899 cb->args[2] = 1;
1900
1901 out:
1902 rdev_unlock_llsec_table(rdev, wpan_dev);
1903 err = skb->len;
1904 out_err:
1905 nl802154_finish_wpan_dev_dump(rdev);
1906
1907 return err;
1908 }
1909
1910 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1911 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1912 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1913 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1914 };
1915
1916 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1917 {
1918 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1919 struct net_device *dev = info->user_ptr[1];
1920 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1921 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1922 struct ieee802154_llsec_device_key key;
1923 __le64 extended_addr;
1924
1925 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1926 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1927 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1928 nl802154_devkey_policy) < 0)
1929 return -EINVAL;
1930
1931 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1932 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1933 return -EINVAL;
1934
1935 /* TODO change key.id ? */
1936 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1937 &key.key_id) < 0)
1938 return -ENOBUFS;
1939
1940 /* TODO be32 */
1941 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1942 /* TODO change naming hwaddr -> extended_addr
1943 * check unique identifier short+pan OR extended_addr
1944 */
1945 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1946 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1947 }
1948
1949 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1950 {
1951 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1952 struct net_device *dev = info->user_ptr[1];
1953 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1954 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1955 struct ieee802154_llsec_device_key key;
1956 __le64 extended_addr;
1957
1958 if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1959 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1960 nl802154_devkey_policy))
1961 return -EINVAL;
1962
1963 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1964 return -EINVAL;
1965
1966 /* TODO change key.id ? */
1967 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1968 &key.key_id) < 0)
1969 return -ENOBUFS;
1970
1971 /* TODO change naming hwaddr -> extended_addr
1972 * check unique identifier short+pan OR extended_addr
1973 */
1974 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1975 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1976 }
1977
1978 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1979 u32 seq, int flags,
1980 struct cfg802154_registered_device *rdev,
1981 struct net_device *dev,
1982 const struct ieee802154_llsec_seclevel *sl)
1983 {
1984 void *hdr;
1985 struct nlattr *nl_seclevel;
1986
1987 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1988 if (!hdr)
1989 return -1;
1990
1991 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1992 goto nla_put_failure;
1993
1994 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL);
1995 if (!nl_seclevel)
1996 goto nla_put_failure;
1997
1998 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1999 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
2000 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
2001 sl->device_override))
2002 goto nla_put_failure;
2003
2004 if (sl->frame_type == NL802154_FRAME_CMD) {
2005 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
2006 sl->cmd_frame_id))
2007 goto nla_put_failure;
2008 }
2009
2010 nla_nest_end(msg, nl_seclevel);
2011 genlmsg_end(msg, hdr);
2012
2013 return 0;
2014
2015 nla_put_failure:
2016 genlmsg_cancel(msg, hdr);
2017 return -EMSGSIZE;
2018 }
2019
2020 static int
2021 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2022 {
2023 struct cfg802154_registered_device *rdev = NULL;
2024 struct ieee802154_llsec_seclevel *sl;
2025 struct ieee802154_llsec_table *table;
2026 struct wpan_dev *wpan_dev;
2027 int err;
2028
2029 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2030 if (err)
2031 return err;
2032
2033 if (!wpan_dev->netdev) {
2034 err = -EINVAL;
2035 goto out_err;
2036 }
2037
2038 rdev_lock_llsec_table(rdev, wpan_dev);
2039 rdev_get_llsec_table(rdev, wpan_dev, &table);
2040
2041 /* TODO make it like station dump */
2042 if (cb->args[2])
2043 goto out;
2044
2045 list_for_each_entry(sl, &table->security_levels, list) {
2046 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2047 NETLINK_CB(cb->skb).portid,
2048 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2049 rdev, wpan_dev->netdev, sl) < 0) {
2050 /* TODO */
2051 err = -EIO;
2052 rdev_unlock_llsec_table(rdev, wpan_dev);
2053 goto out_err;
2054 }
2055 }
2056
2057 cb->args[2] = 1;
2058
2059 out:
2060 rdev_unlock_llsec_table(rdev, wpan_dev);
2061 err = skb->len;
2062 out_err:
2063 nl802154_finish_wpan_dev_dump(rdev);
2064
2065 return err;
2066 }
2067
2068 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2069 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2070 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2071 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2072 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2073 };
2074
2075 static int
2076 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2077 {
2078 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2079
2080 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla,
2081 nl802154_seclevel_policy))
2082 return -EINVAL;
2083
2084 memset(sl, 0, sizeof(*sl));
2085
2086 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2087 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2088 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2089 return -EINVAL;
2090
2091 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2092 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2093 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2094 if (sl->frame_type > NL802154_FRAME_MAX ||
2095 (sl->device_override != 0 && sl->device_override != 1))
2096 return -EINVAL;
2097
2098 if (sl->frame_type == NL802154_FRAME_CMD) {
2099 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2100 return -EINVAL;
2101
2102 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2103 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2104 return -EINVAL;
2105 }
2106
2107 return 0;
2108 }
2109
2110 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2111 struct genl_info *info)
2112 {
2113 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2114 struct net_device *dev = info->user_ptr[1];
2115 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2116 struct ieee802154_llsec_seclevel sl;
2117
2118 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2119 &sl) < 0)
2120 return -EINVAL;
2121
2122 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2123 }
2124
2125 static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2126 struct genl_info *info)
2127 {
2128 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2129 struct net_device *dev = info->user_ptr[1];
2130 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2131 struct ieee802154_llsec_seclevel sl;
2132
2133 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2134 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2135 &sl) < 0)
2136 return -EINVAL;
2137
2138 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2139 }
2140 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2141
2142 #define NL802154_FLAG_NEED_WPAN_PHY 0x01
2143 #define NL802154_FLAG_NEED_NETDEV 0x02
2144 #define NL802154_FLAG_NEED_RTNL 0x04
2145 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2146 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2147 NL802154_FLAG_CHECK_NETDEV_UP)
2148 #define NL802154_FLAG_NEED_WPAN_DEV 0x10
2149 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2150 NL802154_FLAG_CHECK_NETDEV_UP)
2151
2152 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2153 struct genl_info *info)
2154 {
2155 struct cfg802154_registered_device *rdev;
2156 struct wpan_dev *wpan_dev;
2157 struct net_device *dev;
2158 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2159
2160 if (rtnl)
2161 rtnl_lock();
2162
2163 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2164 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2165 if (IS_ERR(rdev)) {
2166 if (rtnl)
2167 rtnl_unlock();
2168 return PTR_ERR(rdev);
2169 }
2170 info->user_ptr[0] = rdev;
2171 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2172 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2173 ASSERT_RTNL();
2174 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2175 info->attrs);
2176 if (IS_ERR(wpan_dev)) {
2177 if (rtnl)
2178 rtnl_unlock();
2179 return PTR_ERR(wpan_dev);
2180 }
2181
2182 dev = wpan_dev->netdev;
2183 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2184
2185 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2186 if (!dev) {
2187 if (rtnl)
2188 rtnl_unlock();
2189 return -EINVAL;
2190 }
2191
2192 info->user_ptr[1] = dev;
2193 } else {
2194 info->user_ptr[1] = wpan_dev;
2195 }
2196
2197 if (dev) {
2198 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2199 !netif_running(dev)) {
2200 if (rtnl)
2201 rtnl_unlock();
2202 return -ENETDOWN;
2203 }
2204
2205 dev_hold(dev);
2206 }
2207
2208 info->user_ptr[0] = rdev;
2209 }
2210
2211 return 0;
2212 }
2213
2214 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2215 struct genl_info *info)
2216 {
2217 if (info->user_ptr[1]) {
2218 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2219 struct wpan_dev *wpan_dev = info->user_ptr[1];
2220
2221 if (wpan_dev->netdev)
2222 dev_put(wpan_dev->netdev);
2223 } else {
2224 dev_put(info->user_ptr[1]);
2225 }
2226 }
2227
2228 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2229 rtnl_unlock();
2230 }
2231
2232 static const struct genl_ops nl802154_ops[] = {
2233 {
2234 .cmd = NL802154_CMD_GET_WPAN_PHY,
2235 .doit = nl802154_get_wpan_phy,
2236 .dumpit = nl802154_dump_wpan_phy,
2237 .done = nl802154_dump_wpan_phy_done,
2238 .policy = nl802154_policy,
2239 /* can be retrieved by unprivileged users */
2240 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2241 NL802154_FLAG_NEED_RTNL,
2242 },
2243 {
2244 .cmd = NL802154_CMD_GET_INTERFACE,
2245 .doit = nl802154_get_interface,
2246 .dumpit = nl802154_dump_interface,
2247 .policy = nl802154_policy,
2248 /* can be retrieved by unprivileged users */
2249 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2250 NL802154_FLAG_NEED_RTNL,
2251 },
2252 {
2253 .cmd = NL802154_CMD_NEW_INTERFACE,
2254 .doit = nl802154_new_interface,
2255 .policy = nl802154_policy,
2256 .flags = GENL_ADMIN_PERM,
2257 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2258 NL802154_FLAG_NEED_RTNL,
2259 },
2260 {
2261 .cmd = NL802154_CMD_DEL_INTERFACE,
2262 .doit = nl802154_del_interface,
2263 .policy = nl802154_policy,
2264 .flags = GENL_ADMIN_PERM,
2265 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2266 NL802154_FLAG_NEED_RTNL,
2267 },
2268 {
2269 .cmd = NL802154_CMD_SET_CHANNEL,
2270 .doit = nl802154_set_channel,
2271 .policy = nl802154_policy,
2272 .flags = GENL_ADMIN_PERM,
2273 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2274 NL802154_FLAG_NEED_RTNL,
2275 },
2276 {
2277 .cmd = NL802154_CMD_SET_CCA_MODE,
2278 .doit = nl802154_set_cca_mode,
2279 .policy = nl802154_policy,
2280 .flags = GENL_ADMIN_PERM,
2281 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2282 NL802154_FLAG_NEED_RTNL,
2283 },
2284 {
2285 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2286 .doit = nl802154_set_cca_ed_level,
2287 .policy = nl802154_policy,
2288 .flags = GENL_ADMIN_PERM,
2289 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2290 NL802154_FLAG_NEED_RTNL,
2291 },
2292 {
2293 .cmd = NL802154_CMD_SET_TX_POWER,
2294 .doit = nl802154_set_tx_power,
2295 .policy = nl802154_policy,
2296 .flags = GENL_ADMIN_PERM,
2297 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2298 NL802154_FLAG_NEED_RTNL,
2299 },
2300 {
2301 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
2302 .doit = nl802154_wpan_phy_netns,
2303 .policy = nl802154_policy,
2304 .flags = GENL_ADMIN_PERM,
2305 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2306 NL802154_FLAG_NEED_RTNL,
2307 },
2308 {
2309 .cmd = NL802154_CMD_SET_PAN_ID,
2310 .doit = nl802154_set_pan_id,
2311 .policy = nl802154_policy,
2312 .flags = GENL_ADMIN_PERM,
2313 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2314 NL802154_FLAG_NEED_RTNL,
2315 },
2316 {
2317 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2318 .doit = nl802154_set_short_addr,
2319 .policy = nl802154_policy,
2320 .flags = GENL_ADMIN_PERM,
2321 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2322 NL802154_FLAG_NEED_RTNL,
2323 },
2324 {
2325 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2326 .doit = nl802154_set_backoff_exponent,
2327 .policy = nl802154_policy,
2328 .flags = GENL_ADMIN_PERM,
2329 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2330 NL802154_FLAG_NEED_RTNL,
2331 },
2332 {
2333 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2334 .doit = nl802154_set_max_csma_backoffs,
2335 .policy = nl802154_policy,
2336 .flags = GENL_ADMIN_PERM,
2337 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2338 NL802154_FLAG_NEED_RTNL,
2339 },
2340 {
2341 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2342 .doit = nl802154_set_max_frame_retries,
2343 .policy = nl802154_policy,
2344 .flags = GENL_ADMIN_PERM,
2345 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2346 NL802154_FLAG_NEED_RTNL,
2347 },
2348 {
2349 .cmd = NL802154_CMD_SET_LBT_MODE,
2350 .doit = nl802154_set_lbt_mode,
2351 .policy = nl802154_policy,
2352 .flags = GENL_ADMIN_PERM,
2353 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2354 NL802154_FLAG_NEED_RTNL,
2355 },
2356 {
2357 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2358 .doit = nl802154_set_ackreq_default,
2359 .policy = nl802154_policy,
2360 .flags = GENL_ADMIN_PERM,
2361 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2362 NL802154_FLAG_NEED_RTNL,
2363 },
2364 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2365 {
2366 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2367 .doit = nl802154_set_llsec_params,
2368 .policy = nl802154_policy,
2369 .flags = GENL_ADMIN_PERM,
2370 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2371 NL802154_FLAG_NEED_RTNL,
2372 },
2373 {
2374 .cmd = NL802154_CMD_GET_SEC_KEY,
2375 /* TODO .doit by matching key id? */
2376 .dumpit = nl802154_dump_llsec_key,
2377 .policy = nl802154_policy,
2378 .flags = GENL_ADMIN_PERM,
2379 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2380 NL802154_FLAG_NEED_RTNL,
2381 },
2382 {
2383 .cmd = NL802154_CMD_NEW_SEC_KEY,
2384 .doit = nl802154_add_llsec_key,
2385 .policy = nl802154_policy,
2386 .flags = GENL_ADMIN_PERM,
2387 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2388 NL802154_FLAG_NEED_RTNL,
2389 },
2390 {
2391 .cmd = NL802154_CMD_DEL_SEC_KEY,
2392 .doit = nl802154_del_llsec_key,
2393 .policy = nl802154_policy,
2394 .flags = GENL_ADMIN_PERM,
2395 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2396 NL802154_FLAG_NEED_RTNL,
2397 },
2398 /* TODO unique identifier must short+pan OR extended_addr */
2399 {
2400 .cmd = NL802154_CMD_GET_SEC_DEV,
2401 /* TODO .doit by matching extended_addr? */
2402 .dumpit = nl802154_dump_llsec_dev,
2403 .policy = nl802154_policy,
2404 .flags = GENL_ADMIN_PERM,
2405 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2406 NL802154_FLAG_NEED_RTNL,
2407 },
2408 {
2409 .cmd = NL802154_CMD_NEW_SEC_DEV,
2410 .doit = nl802154_add_llsec_dev,
2411 .policy = nl802154_policy,
2412 .flags = GENL_ADMIN_PERM,
2413 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2414 NL802154_FLAG_NEED_RTNL,
2415 },
2416 {
2417 .cmd = NL802154_CMD_DEL_SEC_DEV,
2418 .doit = nl802154_del_llsec_dev,
2419 .policy = nl802154_policy,
2420 .flags = GENL_ADMIN_PERM,
2421 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2422 NL802154_FLAG_NEED_RTNL,
2423 },
2424 /* TODO remove complete devkey, put it as nested? */
2425 {
2426 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2427 /* TODO doit by matching ??? */
2428 .dumpit = nl802154_dump_llsec_devkey,
2429 .policy = nl802154_policy,
2430 .flags = GENL_ADMIN_PERM,
2431 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2432 NL802154_FLAG_NEED_RTNL,
2433 },
2434 {
2435 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2436 .doit = nl802154_add_llsec_devkey,
2437 .policy = nl802154_policy,
2438 .flags = GENL_ADMIN_PERM,
2439 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2440 NL802154_FLAG_NEED_RTNL,
2441 },
2442 {
2443 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2444 .doit = nl802154_del_llsec_devkey,
2445 .policy = nl802154_policy,
2446 .flags = GENL_ADMIN_PERM,
2447 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2448 NL802154_FLAG_NEED_RTNL,
2449 },
2450 {
2451 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2452 /* TODO .doit by matching frame_type? */
2453 .dumpit = nl802154_dump_llsec_seclevel,
2454 .policy = nl802154_policy,
2455 .flags = GENL_ADMIN_PERM,
2456 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2457 NL802154_FLAG_NEED_RTNL,
2458 },
2459 {
2460 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2461 .doit = nl802154_add_llsec_seclevel,
2462 .policy = nl802154_policy,
2463 .flags = GENL_ADMIN_PERM,
2464 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2465 NL802154_FLAG_NEED_RTNL,
2466 },
2467 {
2468 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2469 /* TODO match frame_type only? */
2470 .doit = nl802154_del_llsec_seclevel,
2471 .policy = nl802154_policy,
2472 .flags = GENL_ADMIN_PERM,
2473 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2474 NL802154_FLAG_NEED_RTNL,
2475 },
2476 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2477 };
2478
2479 /* initialisation/exit functions */
2480 int nl802154_init(void)
2481 {
2482 return genl_register_family_with_ops_groups(&nl802154_fam, nl802154_ops,
2483 nl802154_mcgrps);
2484 }
2485
2486 void nl802154_exit(void)
2487 {
2488 genl_unregister_family(&nl802154_fam);
2489 }
Linux with added FPC-III support