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Merge tag 'xtensa-20170202' of git://github.com/jcmvbkbc/linux-xtensa
[mirror_ubuntu-zesty-kernel.git] / net / ieee802154 / nl802154.c
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, &params);
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, &params.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 &params.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, &params, 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 }
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