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bpf: remove redundant variable old_flags
[linux-2.6/btrfs-unstable.git] / net / ieee802154 / nl802154.c
blob99f6c254ea777c8786421d069f8f2414d0eb34e5
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, nl802154_policy, NULL);
253 if (err)
254 goto out_unlock;
255
256 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
257 genl_family_attrbuf(&nl802154_fam));
258 if (IS_ERR(*wpan_dev)) {
259 err = PTR_ERR(*wpan_dev);
260 goto out_unlock;
261 }
262 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
263 /* 0 is the first index - add 1 to parse only once */
264 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
265 cb->args[1] = (*wpan_dev)->identifier;
266 } else {
267 /* subtract the 1 again here */
268 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
269 struct wpan_dev *tmp;
270
271 if (!wpan_phy) {
272 err = -ENODEV;
273 goto out_unlock;
274 }
275 *rdev = wpan_phy_to_rdev(wpan_phy);
276 *wpan_dev = NULL;
277
278 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
279 if (tmp->identifier == cb->args[1]) {
280 *wpan_dev = tmp;
281 break;
282 }
283 }
284
285 if (!*wpan_dev) {
286 err = -ENODEV;
287 goto out_unlock;
288 }
289 }
290
291 return 0;
292 out_unlock:
293 rtnl_unlock();
294 return err;
295 }
296
297 static void
298 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
299 {
300 rtnl_unlock();
301 }
302 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
303
304 /* message building helper */
305 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
306 int flags, u8 cmd)
307 {
308 /* since there is no private header just add the generic one */
309 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
310 }
311
312 static int
313 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
314 {
315 struct nlattr *nl_flags = nla_nest_start(msg, attr);
316 int i;
317
318 if (!nl_flags)
319 return -ENOBUFS;
320
321 i = 0;
322 while (mask) {
323 if ((mask & 1) && nla_put_flag(msg, i))
324 return -ENOBUFS;
325
326 mask >>= 1;
327 i++;
328 }
329
330 nla_nest_end(msg, nl_flags);
331 return 0;
332 }
333
334 static int
335 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
336 struct sk_buff *msg)
337 {
338 struct nlattr *nl_page;
339 unsigned long page;
340
341 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
342 if (!nl_page)
343 return -ENOBUFS;
344
345 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
346 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
347 rdev->wpan_phy.supported.channels[page]))
348 return -ENOBUFS;
349 }
350 nla_nest_end(msg, nl_page);
351
352 return 0;
353 }
354
355 static int
356 nl802154_put_capabilities(struct sk_buff *msg,
357 struct cfg802154_registered_device *rdev)
358 {
359 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
360 struct nlattr *nl_caps, *nl_channels;
361 int i;
362
363 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS);
364 if (!nl_caps)
365 return -ENOBUFS;
366
367 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS);
368 if (!nl_channels)
369 return -ENOBUFS;
370
371 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
372 if (caps->channels[i]) {
373 if (nl802154_put_flags(msg, i, caps->channels[i]))
374 return -ENOBUFS;
375 }
376 }
377
378 nla_nest_end(msg, nl_channels);
379
380 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
381 struct nlattr *nl_ed_lvls;
382
383 nl_ed_lvls = nla_nest_start(msg,
384 NL802154_CAP_ATTR_CCA_ED_LEVELS);
385 if (!nl_ed_lvls)
386 return -ENOBUFS;
387
388 for (i = 0; i < caps->cca_ed_levels_size; i++) {
389 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
390 return -ENOBUFS;
391 }
392
393 nla_nest_end(msg, nl_ed_lvls);
394 }
395
396 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
397 struct nlattr *nl_tx_pwrs;
398
399 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS);
400 if (!nl_tx_pwrs)
401 return -ENOBUFS;
402
403 for (i = 0; i < caps->tx_powers_size; i++) {
404 if (nla_put_s32(msg, i, caps->tx_powers[i]))
405 return -ENOBUFS;
406 }
407
408 nla_nest_end(msg, nl_tx_pwrs);
409 }
410
411 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
412 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
413 caps->cca_modes) ||
414 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
415 caps->cca_opts))
416 return -ENOBUFS;
417 }
418
419 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
420 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
421 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
422 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
423 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
424 caps->min_csma_backoffs) ||
425 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
426 caps->max_csma_backoffs) ||
427 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
428 caps->min_frame_retries) ||
429 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
430 caps->max_frame_retries) ||
431 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
432 caps->iftypes) ||
433 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
434 return -ENOBUFS;
435
436 nla_nest_end(msg, nl_caps);
437
438 return 0;
439 }
440
441 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
442 enum nl802154_commands cmd,
443 struct sk_buff *msg, u32 portid, u32 seq,
444 int flags)
445 {
446 struct nlattr *nl_cmds;
447 void *hdr;
448 int i;
449
450 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
451 if (!hdr)
452 return -ENOBUFS;
453
454 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
455 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
456 wpan_phy_name(&rdev->wpan_phy)) ||
457 nla_put_u32(msg, NL802154_ATTR_GENERATION,
458 cfg802154_rdev_list_generation))
459 goto nla_put_failure;
460
461 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
462 goto finish;
463
464 /* DUMP PHY PIB */
465
466 /* current channel settings */
467 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
468 rdev->wpan_phy.current_page) ||
469 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
470 rdev->wpan_phy.current_channel))
471 goto nla_put_failure;
472
473 /* TODO remove this behaviour, we still keep support it for a while
474 * so users can change the behaviour to the new one.
475 */
476 if (nl802154_send_wpan_phy_channels(rdev, msg))
477 goto nla_put_failure;
478
479 /* cca mode */
480 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
481 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
482 rdev->wpan_phy.cca.mode))
483 goto nla_put_failure;
484
485 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
486 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
487 rdev->wpan_phy.cca.opt))
488 goto nla_put_failure;
489 }
490 }
491
492 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
493 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
494 rdev->wpan_phy.transmit_power))
495 goto nla_put_failure;
496 }
497
498 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
499 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
500 rdev->wpan_phy.cca_ed_level))
501 goto nla_put_failure;
502 }
503
504 if (nl802154_put_capabilities(msg, rdev))
505 goto nla_put_failure;
506
507 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
508 if (!nl_cmds)
509 goto nla_put_failure;
510
511 i = 0;
512 #define CMD(op, n) \
513 do { \
514 if (rdev->ops->op) { \
515 i++; \
516 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
517 goto nla_put_failure; \
518 } \
519 } while (0)
520
521 CMD(add_virtual_intf, NEW_INTERFACE);
522 CMD(del_virtual_intf, DEL_INTERFACE);
523 CMD(set_channel, SET_CHANNEL);
524 CMD(set_pan_id, SET_PAN_ID);
525 CMD(set_short_addr, SET_SHORT_ADDR);
526 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
527 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
528 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
529 CMD(set_lbt_mode, SET_LBT_MODE);
530 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
531
532 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
533 CMD(set_tx_power, SET_TX_POWER);
534
535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
536 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
537
538 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
539 CMD(set_cca_mode, SET_CCA_MODE);
540
541 #undef CMD
542 nla_nest_end(msg, nl_cmds);
543
544 finish:
545 genlmsg_end(msg, hdr);
546 return 0;
547
548 nla_put_failure:
549 genlmsg_cancel(msg, hdr);
550 return -EMSGSIZE;
551 }
552
553 struct nl802154_dump_wpan_phy_state {
554 s64 filter_wpan_phy;
555 long start;
556
557 };
558
559 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
560 struct netlink_callback *cb,
561 struct nl802154_dump_wpan_phy_state *state)
562 {
563 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam);
564 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize, tb,
565 nl802154_fam.maxattr, nl802154_policy, NULL);
566
567 /* TODO check if we can handle error here,
568 * we have no backward compatibility
569 */
570 if (ret)
571 return 0;
572
573 if (tb[NL802154_ATTR_WPAN_PHY])
574 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
575 if (tb[NL802154_ATTR_WPAN_DEV])
576 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
577 if (tb[NL802154_ATTR_IFINDEX]) {
578 struct net_device *netdev;
579 struct cfg802154_registered_device *rdev;
580 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
581
582 netdev = __dev_get_by_index(&init_net, ifidx);
583 if (!netdev)
584 return -ENODEV;
585 if (netdev->ieee802154_ptr) {
586 rdev = wpan_phy_to_rdev(
587 netdev->ieee802154_ptr->wpan_phy);
588 state->filter_wpan_phy = rdev->wpan_phy_idx;
589 }
590 }
591
592 return 0;
593 }
594
595 static int
596 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
597 {
598 int idx = 0, ret;
599 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
600 struct cfg802154_registered_device *rdev;
601
602 rtnl_lock();
603 if (!state) {
604 state = kzalloc(sizeof(*state), GFP_KERNEL);
605 if (!state) {
606 rtnl_unlock();
607 return -ENOMEM;
608 }
609 state->filter_wpan_phy = -1;
610 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
611 if (ret) {
612 kfree(state);
613 rtnl_unlock();
614 return ret;
615 }
616 cb->args[0] = (long)state;
617 }
618
619 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
620 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
621 continue;
622 if (++idx <= state->start)
623 continue;
624 if (state->filter_wpan_phy != -1 &&
625 state->filter_wpan_phy != rdev->wpan_phy_idx)
626 continue;
627 /* attempt to fit multiple wpan_phy data chunks into the skb */
628 ret = nl802154_send_wpan_phy(rdev,
629 NL802154_CMD_NEW_WPAN_PHY,
630 skb,
631 NETLINK_CB(cb->skb).portid,
632 cb->nlh->nlmsg_seq, NLM_F_MULTI);
633 if (ret < 0) {
634 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
635 !skb->len && cb->min_dump_alloc < 4096) {
636 cb->min_dump_alloc = 4096;
637 rtnl_unlock();
638 return 1;
639 }
640 idx--;
641 break;
642 }
643 break;
644 }
645 rtnl_unlock();
646
647 state->start = idx;
648
649 return skb->len;
650 }
651
652 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
653 {
654 kfree((void *)cb->args[0]);
655 return 0;
656 }
657
658 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
659 {
660 struct sk_buff *msg;
661 struct cfg802154_registered_device *rdev = info->user_ptr[0];
662
663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
664 if (!msg)
665 return -ENOMEM;
666
667 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
668 info->snd_portid, info->snd_seq, 0) < 0) {
669 nlmsg_free(msg);
670 return -ENOBUFS;
671 }
672
673 return genlmsg_reply(msg, info);
674 }
675
676 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
677 {
678 return (u64)wpan_dev->identifier |
679 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
680 }
681
682 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
683 #include <net/ieee802154_netdev.h>
684
685 static int
686 ieee802154_llsec_send_key_id(struct sk_buff *msg,
687 const struct ieee802154_llsec_key_id *desc)
688 {
689 struct nlattr *nl_dev_addr;
690
691 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
692 return -ENOBUFS;
693
694 switch (desc->mode) {
695 case NL802154_KEY_ID_MODE_IMPLICIT:
696 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT);
697 if (!nl_dev_addr)
698 return -ENOBUFS;
699
700 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
701 desc->device_addr.pan_id) ||
702 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
703 desc->device_addr.mode))
704 return -ENOBUFS;
705
706 switch (desc->device_addr.mode) {
707 case NL802154_DEV_ADDR_SHORT:
708 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
709 desc->device_addr.short_addr))
710 return -ENOBUFS;
711 break;
712 case NL802154_DEV_ADDR_EXTENDED:
713 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
714 desc->device_addr.extended_addr,
715 NL802154_DEV_ADDR_ATTR_PAD))
716 return -ENOBUFS;
717 break;
718 default:
719 /* userspace should handle unknown */
720 break;
721 }
722
723 nla_nest_end(msg, nl_dev_addr);
724 break;
725 case NL802154_KEY_ID_MODE_INDEX:
726 break;
727 case NL802154_KEY_ID_MODE_INDEX_SHORT:
728 /* TODO renmae short_source? */
729 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
730 desc->short_source))
731 return -ENOBUFS;
732 break;
733 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
734 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
735 desc->extended_source,
736 NL802154_KEY_ID_ATTR_PAD))
737 return -ENOBUFS;
738 break;
739 default:
740 /* userspace should handle unknown */
741 break;
742 }
743
744 /* TODO key_id to key_idx ? Check naming */
745 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
746 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
747 return -ENOBUFS;
748 }
749
750 return 0;
751 }
752
753 static int nl802154_get_llsec_params(struct sk_buff *msg,
754 struct cfg802154_registered_device *rdev,
755 struct wpan_dev *wpan_dev)
756 {
757 struct nlattr *nl_key_id;
758 struct ieee802154_llsec_params params;
759 int ret;
760
761 ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
762 if (ret < 0)
763 return ret;
764
765 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
766 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
767 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
768 params.frame_counter))
769 return -ENOBUFS;
770
771 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
772 if (!nl_key_id)
773 return -ENOBUFS;
774
775 ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
776 if (ret < 0)
777 return ret;
778
779 nla_nest_end(msg, nl_key_id);
780
781 return 0;
782 }
783 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
784
785 static int
786 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
787 struct cfg802154_registered_device *rdev,
788 struct wpan_dev *wpan_dev)
789 {
790 struct net_device *dev = wpan_dev->netdev;
791 void *hdr;
792
793 hdr = nl802154hdr_put(msg, portid, seq, flags,
794 NL802154_CMD_NEW_INTERFACE);
795 if (!hdr)
796 return -1;
797
798 if (dev &&
799 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
800 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
801 goto nla_put_failure;
802
803 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
804 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
805 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
806 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
807 nla_put_u32(msg, NL802154_ATTR_GENERATION,
808 rdev->devlist_generation ^
809 (cfg802154_rdev_list_generation << 2)))
810 goto nla_put_failure;
811
812 /* address settings */
813 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
814 wpan_dev->extended_addr,
815 NL802154_ATTR_PAD) ||
816 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
817 wpan_dev->short_addr) ||
818 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
819 goto nla_put_failure;
820
821 /* ARET handling */
822 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
823 wpan_dev->frame_retries) ||
824 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
825 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
826 wpan_dev->csma_retries) ||
827 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
828 goto nla_put_failure;
829
830 /* listen before transmit */
831 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
832 goto nla_put_failure;
833
834 /* ackreq default behaviour */
835 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
836 goto nla_put_failure;
837
838 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
839 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
840 goto nla_put_failure;
841 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
842
843 genlmsg_end(msg, hdr);
844 return 0;
845
846 nla_put_failure:
847 genlmsg_cancel(msg, hdr);
848 return -EMSGSIZE;
849 }
850
851 static int
852 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
853 {
854 int wp_idx = 0;
855 int if_idx = 0;
856 int wp_start = cb->args[0];
857 int if_start = cb->args[1];
858 struct cfg802154_registered_device *rdev;
859 struct wpan_dev *wpan_dev;
860
861 rtnl_lock();
862 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
863 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
864 continue;
865 if (wp_idx < wp_start) {
866 wp_idx++;
867 continue;
868 }
869 if_idx = 0;
870
871 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
872 if (if_idx < if_start) {
873 if_idx++;
874 continue;
875 }
876 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
877 cb->nlh->nlmsg_seq, NLM_F_MULTI,
878 rdev, wpan_dev) < 0) {
879 goto out;
880 }
881 if_idx++;
882 }
883
884 wp_idx++;
885 }
886 out:
887 rtnl_unlock();
888
889 cb->args[0] = wp_idx;
890 cb->args[1] = if_idx;
891
892 return skb->len;
893 }
894
895 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
896 {
897 struct sk_buff *msg;
898 struct cfg802154_registered_device *rdev = info->user_ptr[0];
899 struct wpan_dev *wdev = info->user_ptr[1];
900
901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
902 if (!msg)
903 return -ENOMEM;
904
905 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
906 rdev, wdev) < 0) {
907 nlmsg_free(msg);
908 return -ENOBUFS;
909 }
910
911 return genlmsg_reply(msg, info);
912 }
913
914 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
915 {
916 struct cfg802154_registered_device *rdev = info->user_ptr[0];
917 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
918 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
919
920 /* TODO avoid failing a new interface
921 * creation due to pending removal?
922 */
923
924 if (!info->attrs[NL802154_ATTR_IFNAME])
925 return -EINVAL;
926
927 if (info->attrs[NL802154_ATTR_IFTYPE]) {
928 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
929 if (type > NL802154_IFTYPE_MAX ||
930 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
931 return -EINVAL;
932 }
933
934 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
935 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
936
937 if (!rdev->ops->add_virtual_intf)
938 return -EOPNOTSUPP;
939
940 return rdev_add_virtual_intf(rdev,
941 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
942 NET_NAME_USER, type, extended_addr);
943 }
944
945 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
946 {
947 struct cfg802154_registered_device *rdev = info->user_ptr[0];
948 struct wpan_dev *wpan_dev = info->user_ptr[1];
949
950 if (!rdev->ops->del_virtual_intf)
951 return -EOPNOTSUPP;
952
953 /* If we remove a wpan device without a netdev then clear
954 * user_ptr[1] so that nl802154_post_doit won't dereference it
955 * to check if it needs to do dev_put(). Otherwise it crashes
956 * since the wpan_dev has been freed, unlike with a netdev where
957 * we need the dev_put() for the netdev to really be freed.
958 */
959 if (!wpan_dev->netdev)
960 info->user_ptr[1] = NULL;
961
962 return rdev_del_virtual_intf(rdev, wpan_dev);
963 }
964
965 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
966 {
967 struct cfg802154_registered_device *rdev = info->user_ptr[0];
968 u8 channel, page;
969
970 if (!info->attrs[NL802154_ATTR_PAGE] ||
971 !info->attrs[NL802154_ATTR_CHANNEL])
972 return -EINVAL;
973
974 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
975 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
976
977 /* check 802.15.4 constraints */
978 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
979 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
980 return -EINVAL;
981
982 return rdev_set_channel(rdev, page, channel);
983 }
984
985 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
986 {
987 struct cfg802154_registered_device *rdev = info->user_ptr[0];
988 struct wpan_phy_cca cca;
989
990 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
991 return -EOPNOTSUPP;
992
993 if (!info->attrs[NL802154_ATTR_CCA_MODE])
994 return -EINVAL;
995
996 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
997 /* checking 802.15.4 constraints */
998 if (cca.mode < NL802154_CCA_ENERGY ||
999 cca.mode > NL802154_CCA_ATTR_MAX ||
1000 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1001 return -EINVAL;
1002
1003 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1004 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1005 return -EINVAL;
1006
1007 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1008 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1009 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1010 return -EINVAL;
1011 }
1012
1013 return rdev_set_cca_mode(rdev, &cca);
1014 }
1015
1016 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1017 {
1018 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1019 s32 ed_level;
1020 int i;
1021
1022 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1023 return -EOPNOTSUPP;
1024
1025 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1026 return -EINVAL;
1027
1028 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1029
1030 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1031 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1032 return rdev_set_cca_ed_level(rdev, ed_level);
1033 }
1034
1035 return -EINVAL;
1036 }
1037
1038 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1039 {
1040 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1041 s32 power;
1042 int i;
1043
1044 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1045 return -EOPNOTSUPP;
1046
1047 if (!info->attrs[NL802154_ATTR_TX_POWER])
1048 return -EINVAL;
1049
1050 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1051
1052 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1053 if (power == rdev->wpan_phy.supported.tx_powers[i])
1054 return rdev_set_tx_power(rdev, power);
1055 }
1056
1057 return -EINVAL;
1058 }
1059
1060 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1061 {
1062 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1063 struct net_device *dev = info->user_ptr[1];
1064 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1065 __le16 pan_id;
1066
1067 /* conflict here while tx/rx calls */
1068 if (netif_running(dev))
1069 return -EBUSY;
1070
1071 if (wpan_dev->lowpan_dev) {
1072 if (netif_running(wpan_dev->lowpan_dev))
1073 return -EBUSY;
1074 }
1075
1076 /* don't change address fields on monitor */
1077 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1078 !info->attrs[NL802154_ATTR_PAN_ID])
1079 return -EINVAL;
1080
1081 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1082
1083 /* TODO
1084 * I am not sure about to check here on broadcast pan_id.
1085 * Broadcast is a valid setting, comment from 802.15.4:
1086 * If this value is 0xffff, the device is not associated.
1087 *
1088 * This could useful to simple deassociate an device.
1089 */
1090 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1091 return -EINVAL;
1092
1093 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1094 }
1095
1096 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1097 {
1098 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1099 struct net_device *dev = info->user_ptr[1];
1100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1101 __le16 short_addr;
1102
1103 /* conflict here while tx/rx calls */
1104 if (netif_running(dev))
1105 return -EBUSY;
1106
1107 if (wpan_dev->lowpan_dev) {
1108 if (netif_running(wpan_dev->lowpan_dev))
1109 return -EBUSY;
1110 }
1111
1112 /* don't change address fields on monitor */
1113 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1114 !info->attrs[NL802154_ATTR_SHORT_ADDR])
1115 return -EINVAL;
1116
1117 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1118
1119 /* TODO
1120 * I am not sure about to check here on broadcast short_addr.
1121 * Broadcast is a valid setting, comment from 802.15.4:
1122 * A value of 0xfffe indicates that the device has
1123 * associated but has not been allocated an address. A
1124 * value of 0xffff indicates that the device does not
1125 * have a short address.
1126 *
1127 * I think we should allow to set these settings but
1128 * don't allow to allow socket communication with it.
1129 */
1130 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1131 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1132 return -EINVAL;
1133
1134 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1135 }
1136
1137 static int
1138 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1139 {
1140 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1141 struct net_device *dev = info->user_ptr[1];
1142 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1143 u8 min_be, max_be;
1144
1145 /* should be set on netif open inside phy settings */
1146 if (netif_running(dev))
1147 return -EBUSY;
1148
1149 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1150 !info->attrs[NL802154_ATTR_MAX_BE])
1151 return -EINVAL;
1152
1153 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1154 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1155
1156 /* check 802.15.4 constraints */
1157 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1158 min_be > rdev->wpan_phy.supported.max_minbe ||
1159 max_be < rdev->wpan_phy.supported.min_maxbe ||
1160 max_be > rdev->wpan_phy.supported.max_maxbe ||
1161 min_be > max_be)
1162 return -EINVAL;
1163
1164 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1165 }
1166
1167 static int
1168 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1169 {
1170 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1171 struct net_device *dev = info->user_ptr[1];
1172 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1173 u8 max_csma_backoffs;
1174
1175 /* conflict here while other running iface settings */
1176 if (netif_running(dev))
1177 return -EBUSY;
1178
1179 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1180 return -EINVAL;
1181
1182 max_csma_backoffs = nla_get_u8(
1183 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1184
1185 /* check 802.15.4 constraints */
1186 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1187 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1188 return -EINVAL;
1189
1190 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1191 }
1192
1193 static int
1194 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1195 {
1196 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1197 struct net_device *dev = info->user_ptr[1];
1198 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1199 s8 max_frame_retries;
1200
1201 if (netif_running(dev))
1202 return -EBUSY;
1203
1204 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1205 return -EINVAL;
1206
1207 max_frame_retries = nla_get_s8(
1208 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1209
1210 /* check 802.15.4 constraints */
1211 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1212 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1213 return -EINVAL;
1214
1215 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1216 }
1217
1218 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1219 {
1220 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1221 struct net_device *dev = info->user_ptr[1];
1222 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1223 int mode;
1224
1225 if (netif_running(dev))
1226 return -EBUSY;
1227
1228 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1229 return -EINVAL;
1230
1231 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1232
1233 if (mode != 0 && mode != 1)
1234 return -EINVAL;
1235
1236 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1237 return -EINVAL;
1238
1239 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1240 }
1241
1242 static int
1243 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1244 {
1245 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1246 struct net_device *dev = info->user_ptr[1];
1247 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1248 int ackreq;
1249
1250 if (netif_running(dev))
1251 return -EBUSY;
1252
1253 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1254 return -EINVAL;
1255
1256 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1257
1258 if (ackreq != 0 && ackreq != 1)
1259 return -EINVAL;
1260
1261 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1262 }
1263
1264 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1265 {
1266 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1267 struct net *net;
1268 int err;
1269
1270 if (info->attrs[NL802154_ATTR_PID]) {
1271 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1272
1273 net = get_net_ns_by_pid(pid);
1274 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1275 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1276
1277 net = get_net_ns_by_fd(fd);
1278 } else {
1279 return -EINVAL;
1280 }
1281
1282 if (IS_ERR(net))
1283 return PTR_ERR(net);
1284
1285 err = 0;
1286
1287 /* check if anything to do */
1288 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1289 err = cfg802154_switch_netns(rdev, net);
1290
1291 put_net(net);
1292 return err;
1293 }
1294
1295 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1296 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1297 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1298 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1299 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1300 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1301 };
1302
1303 static int
1304 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1305 struct ieee802154_addr *addr)
1306 {
1307 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1308
1309 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla,
1310 nl802154_dev_addr_policy, NULL))
1311 return -EINVAL;
1312
1313 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1314 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
1315 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1316 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1317 return -EINVAL;
1318
1319 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1320 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1321 switch (addr->mode) {
1322 case NL802154_DEV_ADDR_SHORT:
1323 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1324 break;
1325 case NL802154_DEV_ADDR_EXTENDED:
1326 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1327 break;
1328 default:
1329 return -EINVAL;
1330 }
1331
1332 return 0;
1333 }
1334
1335 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1336 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1337 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1338 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1339 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1340 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1341 };
1342
1343 static int
1344 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1345 struct ieee802154_llsec_key_id *desc)
1346 {
1347 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1348
1349 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla,
1350 nl802154_key_id_policy, NULL))
1351 return -EINVAL;
1352
1353 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1354 return -EINVAL;
1355
1356 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1357 switch (desc->mode) {
1358 case NL802154_KEY_ID_MODE_IMPLICIT:
1359 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1360 return -EINVAL;
1361
1362 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1363 &desc->device_addr) < 0)
1364 return -EINVAL;
1365 break;
1366 case NL802154_KEY_ID_MODE_INDEX:
1367 break;
1368 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1369 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1370 return -EINVAL;
1371
1372 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1373 break;
1374 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1375 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1376 return -EINVAL;
1377
1378 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1379 break;
1380 default:
1381 return -EINVAL;
1382 }
1383
1384 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1385 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1386 return -EINVAL;
1387
1388 /* TODO change id to idx */
1389 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1390 }
1391
1392 return 0;
1393 }
1394
1395 static int nl802154_set_llsec_params(struct sk_buff *skb,
1396 struct genl_info *info)
1397 {
1398 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1399 struct net_device *dev = info->user_ptr[1];
1400 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1401 struct ieee802154_llsec_params params;
1402 u32 changed = 0;
1403 int ret;
1404
1405 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1406 u8 enabled;
1407
1408 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1409 if (enabled != 0 && enabled != 1)
1410 return -EINVAL;
1411
1412 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1413 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1414 }
1415
1416 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1417 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1418 &params.out_key);
1419 if (ret < 0)
1420 return ret;
1421
1422 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1423 }
1424
1425 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1426 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1427 if (params.out_level > NL802154_SECLEVEL_MAX)
1428 return -EINVAL;
1429
1430 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1431 }
1432
1433 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1434 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1435 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1436 }
1437
1438 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1439 }
1440
1441 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1442 u32 seq, int flags,
1443 struct cfg802154_registered_device *rdev,
1444 struct net_device *dev,
1445 const struct ieee802154_llsec_key_entry *key)
1446 {
1447 void *hdr;
1448 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1449 struct nlattr *nl_key, *nl_key_id;
1450
1451 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1452 if (!hdr)
1453 return -1;
1454
1455 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1456 goto nla_put_failure;
1457
1458 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY);
1459 if (!nl_key)
1460 goto nla_put_failure;
1461
1462 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID);
1463 if (!nl_key_id)
1464 goto nla_put_failure;
1465
1466 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1467 goto nla_put_failure;
1468
1469 nla_nest_end(msg, nl_key_id);
1470
1471 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1472 key->key->frame_types))
1473 goto nla_put_failure;
1474
1475 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1476 /* TODO for each nested */
1477 memset(commands, 0, sizeof(commands));
1478 commands[7] = key->key->cmd_frame_ids;
1479 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1480 sizeof(commands), commands))
1481 goto nla_put_failure;
1482 }
1483
1484 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1485 key->key->key))
1486 goto nla_put_failure;
1487
1488 nla_nest_end(msg, nl_key);
1489 genlmsg_end(msg, hdr);
1490
1491 return 0;
1492
1493 nla_put_failure:
1494 genlmsg_cancel(msg, hdr);
1495 return -EMSGSIZE;
1496 }
1497
1498 static int
1499 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1500 {
1501 struct cfg802154_registered_device *rdev = NULL;
1502 struct ieee802154_llsec_key_entry *key;
1503 struct ieee802154_llsec_table *table;
1504 struct wpan_dev *wpan_dev;
1505 int err;
1506
1507 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1508 if (err)
1509 return err;
1510
1511 if (!wpan_dev->netdev) {
1512 err = -EINVAL;
1513 goto out_err;
1514 }
1515
1516 rdev_lock_llsec_table(rdev, wpan_dev);
1517 rdev_get_llsec_table(rdev, wpan_dev, &table);
1518
1519 /* TODO make it like station dump */
1520 if (cb->args[2])
1521 goto out;
1522
1523 list_for_each_entry(key, &table->keys, list) {
1524 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1525 NETLINK_CB(cb->skb).portid,
1526 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1527 rdev, wpan_dev->netdev, key) < 0) {
1528 /* TODO */
1529 err = -EIO;
1530 rdev_unlock_llsec_table(rdev, wpan_dev);
1531 goto out_err;
1532 }
1533 }
1534
1535 cb->args[2] = 1;
1536
1537 out:
1538 rdev_unlock_llsec_table(rdev, wpan_dev);
1539 err = skb->len;
1540 out_err:
1541 nl802154_finish_wpan_dev_dump(rdev);
1542
1543 return err;
1544 }
1545
1546 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1547 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1548 /* TODO handle it as for_each_nested and NLA_FLAG? */
1549 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1550 /* TODO handle it as for_each_nested, not static array? */
1551 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1552 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1553 };
1554
1555 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1556 {
1557 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1558 struct net_device *dev = info->user_ptr[1];
1559 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1560 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1561 struct ieee802154_llsec_key key = { };
1562 struct ieee802154_llsec_key_id id = { };
1563 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1564
1565 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1566 info->attrs[NL802154_ATTR_SEC_KEY],
1567 nl802154_key_policy, info->extack))
1568 return -EINVAL;
1569
1570 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1571 !attrs[NL802154_KEY_ATTR_BYTES])
1572 return -EINVAL;
1573
1574 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1575 return -ENOBUFS;
1576
1577 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1578 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1579 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1580 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1581 return -EINVAL;
1582
1583 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1584 /* TODO for each nested */
1585 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1586 NL802154_CMD_FRAME_NR_IDS / 8);
1587
1588 /* TODO understand the -EINVAL logic here? last condition */
1589 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1590 commands[4] || commands[5] || commands[6] ||
1591 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1592 return -EINVAL;
1593
1594 key.cmd_frame_ids = commands[7];
1595 } else {
1596 key.cmd_frame_ids = 0;
1597 }
1598
1599 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1600
1601 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1602 return -ENOBUFS;
1603
1604 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1605 }
1606
1607 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1608 {
1609 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1610 struct net_device *dev = info->user_ptr[1];
1611 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1612 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1613 struct ieee802154_llsec_key_id id;
1614
1615 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1616 info->attrs[NL802154_ATTR_SEC_KEY],
1617 nl802154_key_policy, info->extack))
1618 return -EINVAL;
1619
1620 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1621 return -ENOBUFS;
1622
1623 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1624 }
1625
1626 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1627 u32 seq, int flags,
1628 struct cfg802154_registered_device *rdev,
1629 struct net_device *dev,
1630 const struct ieee802154_llsec_device *dev_desc)
1631 {
1632 void *hdr;
1633 struct nlattr *nl_device;
1634
1635 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1636 if (!hdr)
1637 return -1;
1638
1639 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1640 goto nla_put_failure;
1641
1642 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE);
1643 if (!nl_device)
1644 goto nla_put_failure;
1645
1646 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1647 dev_desc->frame_counter) ||
1648 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1649 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1650 dev_desc->short_addr) ||
1651 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1652 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1653 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1654 dev_desc->seclevel_exempt) ||
1655 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1656 goto nla_put_failure;
1657
1658 nla_nest_end(msg, nl_device);
1659 genlmsg_end(msg, hdr);
1660
1661 return 0;
1662
1663 nla_put_failure:
1664 genlmsg_cancel(msg, hdr);
1665 return -EMSGSIZE;
1666 }
1667
1668 static int
1669 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1670 {
1671 struct cfg802154_registered_device *rdev = NULL;
1672 struct ieee802154_llsec_device *dev;
1673 struct ieee802154_llsec_table *table;
1674 struct wpan_dev *wpan_dev;
1675 int err;
1676
1677 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1678 if (err)
1679 return err;
1680
1681 if (!wpan_dev->netdev) {
1682 err = -EINVAL;
1683 goto out_err;
1684 }
1685
1686 rdev_lock_llsec_table(rdev, wpan_dev);
1687 rdev_get_llsec_table(rdev, wpan_dev, &table);
1688
1689 /* TODO make it like station dump */
1690 if (cb->args[2])
1691 goto out;
1692
1693 list_for_each_entry(dev, &table->devices, list) {
1694 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1695 NETLINK_CB(cb->skb).portid,
1696 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1697 rdev, wpan_dev->netdev, dev) < 0) {
1698 /* TODO */
1699 err = -EIO;
1700 rdev_unlock_llsec_table(rdev, wpan_dev);
1701 goto out_err;
1702 }
1703 }
1704
1705 cb->args[2] = 1;
1706
1707 out:
1708 rdev_unlock_llsec_table(rdev, wpan_dev);
1709 err = skb->len;
1710 out_err:
1711 nl802154_finish_wpan_dev_dump(rdev);
1712
1713 return err;
1714 }
1715
1716 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1717 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1718 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1719 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1720 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1721 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1722 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1723 };
1724
1725 static int
1726 ieee802154_llsec_parse_device(struct nlattr *nla,
1727 struct ieee802154_llsec_device *dev)
1728 {
1729 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1730
1731 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1732 nla, nl802154_dev_policy, NULL))
1733 return -EINVAL;
1734
1735 memset(dev, 0, sizeof(*dev));
1736
1737 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1738 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1739 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1740 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1741 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1742 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1743 return -EINVAL;
1744
1745 /* TODO be32 */
1746 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1747 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1748 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1749 /* TODO rename hwaddr to extended_addr */
1750 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1751 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1752 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1753
1754 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1755 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1756 return -EINVAL;
1757
1758 return 0;
1759 }
1760
1761 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1762 {
1763 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1764 struct net_device *dev = info->user_ptr[1];
1765 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1766 struct ieee802154_llsec_device dev_desc;
1767
1768 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1769 &dev_desc) < 0)
1770 return -EINVAL;
1771
1772 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1773 }
1774
1775 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1776 {
1777 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1778 struct net_device *dev = info->user_ptr[1];
1779 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1780 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1781 __le64 extended_addr;
1782
1783 if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1784 info->attrs[NL802154_ATTR_SEC_DEVICE],
1785 nl802154_dev_policy, info->extack))
1786 return -EINVAL;
1787
1788 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1789 return -EINVAL;
1790
1791 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1792 return rdev_del_device(rdev, wpan_dev, extended_addr);
1793 }
1794
1795 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1796 u32 seq, int flags,
1797 struct cfg802154_registered_device *rdev,
1798 struct net_device *dev, __le64 extended_addr,
1799 const struct ieee802154_llsec_device_key *devkey)
1800 {
1801 void *hdr;
1802 struct nlattr *nl_devkey, *nl_key_id;
1803
1804 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1805 if (!hdr)
1806 return -1;
1807
1808 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1809 goto nla_put_failure;
1810
1811 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY);
1812 if (!nl_devkey)
1813 goto nla_put_failure;
1814
1815 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1816 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1817 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1818 devkey->frame_counter))
1819 goto nla_put_failure;
1820
1821 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID);
1822 if (!nl_key_id)
1823 goto nla_put_failure;
1824
1825 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1826 goto nla_put_failure;
1827
1828 nla_nest_end(msg, nl_key_id);
1829 nla_nest_end(msg, nl_devkey);
1830 genlmsg_end(msg, hdr);
1831
1832 return 0;
1833
1834 nla_put_failure:
1835 genlmsg_cancel(msg, hdr);
1836 return -EMSGSIZE;
1837 }
1838
1839 static int
1840 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1841 {
1842 struct cfg802154_registered_device *rdev = NULL;
1843 struct ieee802154_llsec_device_key *kpos;
1844 struct ieee802154_llsec_device *dpos;
1845 struct ieee802154_llsec_table *table;
1846 struct wpan_dev *wpan_dev;
1847 int err;
1848
1849 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1850 if (err)
1851 return err;
1852
1853 if (!wpan_dev->netdev) {
1854 err = -EINVAL;
1855 goto out_err;
1856 }
1857
1858 rdev_lock_llsec_table(rdev, wpan_dev);
1859 rdev_get_llsec_table(rdev, wpan_dev, &table);
1860
1861 /* TODO make it like station dump */
1862 if (cb->args[2])
1863 goto out;
1864
1865 /* TODO look if remove devkey and do some nested attribute */
1866 list_for_each_entry(dpos, &table->devices, list) {
1867 list_for_each_entry(kpos, &dpos->keys, list) {
1868 if (nl802154_send_devkey(skb,
1869 NL802154_CMD_NEW_SEC_LEVEL,
1870 NETLINK_CB(cb->skb).portid,
1871 cb->nlh->nlmsg_seq,
1872 NLM_F_MULTI, rdev,
1873 wpan_dev->netdev,
1874 dpos->hwaddr,
1875 kpos) < 0) {
1876 /* TODO */
1877 err = -EIO;
1878 rdev_unlock_llsec_table(rdev, wpan_dev);
1879 goto out_err;
1880 }
1881 }
1882 }
1883
1884 cb->args[2] = 1;
1885
1886 out:
1887 rdev_unlock_llsec_table(rdev, wpan_dev);
1888 err = skb->len;
1889 out_err:
1890 nl802154_finish_wpan_dev_dump(rdev);
1891
1892 return err;
1893 }
1894
1895 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1896 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1897 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1898 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1899 };
1900
1901 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1902 {
1903 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1904 struct net_device *dev = info->user_ptr[1];
1905 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1906 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1907 struct ieee802154_llsec_device_key key;
1908 __le64 extended_addr;
1909
1910 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1911 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1912 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1913 nl802154_devkey_policy, info->extack) < 0)
1914 return -EINVAL;
1915
1916 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1917 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1918 return -EINVAL;
1919
1920 /* TODO change key.id ? */
1921 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1922 &key.key_id) < 0)
1923 return -ENOBUFS;
1924
1925 /* TODO be32 */
1926 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1927 /* TODO change naming hwaddr -> extended_addr
1928 * check unique identifier short+pan OR extended_addr
1929 */
1930 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1931 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1932 }
1933
1934 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1935 {
1936 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1937 struct net_device *dev = info->user_ptr[1];
1938 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1939 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1940 struct ieee802154_llsec_device_key key;
1941 __le64 extended_addr;
1942
1943 if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1944 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1945 nl802154_devkey_policy, info->extack))
1946 return -EINVAL;
1947
1948 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1949 return -EINVAL;
1950
1951 /* TODO change key.id ? */
1952 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1953 &key.key_id) < 0)
1954 return -ENOBUFS;
1955
1956 /* TODO change naming hwaddr -> extended_addr
1957 * check unique identifier short+pan OR extended_addr
1958 */
1959 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1960 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1961 }
1962
1963 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1964 u32 seq, int flags,
1965 struct cfg802154_registered_device *rdev,
1966 struct net_device *dev,
1967 const struct ieee802154_llsec_seclevel *sl)
1968 {
1969 void *hdr;
1970 struct nlattr *nl_seclevel;
1971
1972 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1973 if (!hdr)
1974 return -1;
1975
1976 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1977 goto nla_put_failure;
1978
1979 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL);
1980 if (!nl_seclevel)
1981 goto nla_put_failure;
1982
1983 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1984 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1985 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1986 sl->device_override))
1987 goto nla_put_failure;
1988
1989 if (sl->frame_type == NL802154_FRAME_CMD) {
1990 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1991 sl->cmd_frame_id))
1992 goto nla_put_failure;
1993 }
1994
1995 nla_nest_end(msg, nl_seclevel);
1996 genlmsg_end(msg, hdr);
1997
1998 return 0;
1999
2000 nla_put_failure:
2001 genlmsg_cancel(msg, hdr);
2002 return -EMSGSIZE;
2003 }
2004
2005 static int
2006 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2007 {
2008 struct cfg802154_registered_device *rdev = NULL;
2009 struct ieee802154_llsec_seclevel *sl;
2010 struct ieee802154_llsec_table *table;
2011 struct wpan_dev *wpan_dev;
2012 int err;
2013
2014 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2015 if (err)
2016 return err;
2017
2018 if (!wpan_dev->netdev) {
2019 err = -EINVAL;
2020 goto out_err;
2021 }
2022
2023 rdev_lock_llsec_table(rdev, wpan_dev);
2024 rdev_get_llsec_table(rdev, wpan_dev, &table);
2025
2026 /* TODO make it like station dump */
2027 if (cb->args[2])
2028 goto out;
2029
2030 list_for_each_entry(sl, &table->security_levels, list) {
2031 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2032 NETLINK_CB(cb->skb).portid,
2033 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2034 rdev, wpan_dev->netdev, sl) < 0) {
2035 /* TODO */
2036 err = -EIO;
2037 rdev_unlock_llsec_table(rdev, wpan_dev);
2038 goto out_err;
2039 }
2040 }
2041
2042 cb->args[2] = 1;
2043
2044 out:
2045 rdev_unlock_llsec_table(rdev, wpan_dev);
2046 err = skb->len;
2047 out_err:
2048 nl802154_finish_wpan_dev_dump(rdev);
2049
2050 return err;
2051 }
2052
2053 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2054 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2055 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2056 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2057 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2058 };
2059
2060 static int
2061 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2062 {
2063 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2064
2065 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX,
2066 nla, nl802154_seclevel_policy, NULL))
2067 return -EINVAL;
2068
2069 memset(sl, 0, sizeof(*sl));
2070
2071 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2072 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2073 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2074 return -EINVAL;
2075
2076 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2077 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2078 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2079 if (sl->frame_type > NL802154_FRAME_MAX ||
2080 (sl->device_override != 0 && sl->device_override != 1))
2081 return -EINVAL;
2082
2083 if (sl->frame_type == NL802154_FRAME_CMD) {
2084 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2085 return -EINVAL;
2086
2087 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2088 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2089 return -EINVAL;
2090 }
2091
2092 return 0;
2093 }
2094
2095 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2096 struct genl_info *info)
2097 {
2098 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2099 struct net_device *dev = info->user_ptr[1];
2100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2101 struct ieee802154_llsec_seclevel sl;
2102
2103 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2104 &sl) < 0)
2105 return -EINVAL;
2106
2107 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2108 }
2109
2110 static int nl802154_del_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 (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2119 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2120 &sl) < 0)
2121 return -EINVAL;
2122
2123 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2124 }
2125 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2126
2127 #define NL802154_FLAG_NEED_WPAN_PHY 0x01
2128 #define NL802154_FLAG_NEED_NETDEV 0x02
2129 #define NL802154_FLAG_NEED_RTNL 0x04
2130 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2131 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2132 NL802154_FLAG_CHECK_NETDEV_UP)
2133 #define NL802154_FLAG_NEED_WPAN_DEV 0x10
2134 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2135 NL802154_FLAG_CHECK_NETDEV_UP)
2136
2137 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2138 struct genl_info *info)
2139 {
2140 struct cfg802154_registered_device *rdev;
2141 struct wpan_dev *wpan_dev;
2142 struct net_device *dev;
2143 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2144
2145 if (rtnl)
2146 rtnl_lock();
2147
2148 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2149 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2150 if (IS_ERR(rdev)) {
2151 if (rtnl)
2152 rtnl_unlock();
2153 return PTR_ERR(rdev);
2154 }
2155 info->user_ptr[0] = rdev;
2156 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2157 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2158 ASSERT_RTNL();
2159 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2160 info->attrs);
2161 if (IS_ERR(wpan_dev)) {
2162 if (rtnl)
2163 rtnl_unlock();
2164 return PTR_ERR(wpan_dev);
2165 }
2166
2167 dev = wpan_dev->netdev;
2168 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2169
2170 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2171 if (!dev) {
2172 if (rtnl)
2173 rtnl_unlock();
2174 return -EINVAL;
2175 }
2176
2177 info->user_ptr[1] = dev;
2178 } else {
2179 info->user_ptr[1] = wpan_dev;
2180 }
2181
2182 if (dev) {
2183 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2184 !netif_running(dev)) {
2185 if (rtnl)
2186 rtnl_unlock();
2187 return -ENETDOWN;
2188 }
2189
2190 dev_hold(dev);
2191 }
2192
2193 info->user_ptr[0] = rdev;
2194 }
2195
2196 return 0;
2197 }
2198
2199 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2200 struct genl_info *info)
2201 {
2202 if (info->user_ptr[1]) {
2203 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2204 struct wpan_dev *wpan_dev = info->user_ptr[1];
2205
2206 if (wpan_dev->netdev)
2207 dev_put(wpan_dev->netdev);
2208 } else {
2209 dev_put(info->user_ptr[1]);
2210 }
2211 }
2212
2213 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2214 rtnl_unlock();
2215 }
2216
2217 static const struct genl_ops nl802154_ops[] = {
2218 {
2219 .cmd = NL802154_CMD_GET_WPAN_PHY,
2220 .doit = nl802154_get_wpan_phy,
2221 .dumpit = nl802154_dump_wpan_phy,
2222 .done = nl802154_dump_wpan_phy_done,
2223 .policy = nl802154_policy,
2224 /* can be retrieved by unprivileged users */
2225 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2226 NL802154_FLAG_NEED_RTNL,
2227 },
2228 {
2229 .cmd = NL802154_CMD_GET_INTERFACE,
2230 .doit = nl802154_get_interface,
2231 .dumpit = nl802154_dump_interface,
2232 .policy = nl802154_policy,
2233 /* can be retrieved by unprivileged users */
2234 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2235 NL802154_FLAG_NEED_RTNL,
2236 },
2237 {
2238 .cmd = NL802154_CMD_NEW_INTERFACE,
2239 .doit = nl802154_new_interface,
2240 .policy = nl802154_policy,
2241 .flags = GENL_ADMIN_PERM,
2242 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2243 NL802154_FLAG_NEED_RTNL,
2244 },
2245 {
2246 .cmd = NL802154_CMD_DEL_INTERFACE,
2247 .doit = nl802154_del_interface,
2248 .policy = nl802154_policy,
2249 .flags = GENL_ADMIN_PERM,
2250 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2251 NL802154_FLAG_NEED_RTNL,
2252 },
2253 {
2254 .cmd = NL802154_CMD_SET_CHANNEL,
2255 .doit = nl802154_set_channel,
2256 .policy = nl802154_policy,
2257 .flags = GENL_ADMIN_PERM,
2258 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2259 NL802154_FLAG_NEED_RTNL,
2260 },
2261 {
2262 .cmd = NL802154_CMD_SET_CCA_MODE,
2263 .doit = nl802154_set_cca_mode,
2264 .policy = nl802154_policy,
2265 .flags = GENL_ADMIN_PERM,
2266 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2267 NL802154_FLAG_NEED_RTNL,
2268 },
2269 {
2270 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2271 .doit = nl802154_set_cca_ed_level,
2272 .policy = nl802154_policy,
2273 .flags = GENL_ADMIN_PERM,
2274 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2275 NL802154_FLAG_NEED_RTNL,
2276 },
2277 {
2278 .cmd = NL802154_CMD_SET_TX_POWER,
2279 .doit = nl802154_set_tx_power,
2280 .policy = nl802154_policy,
2281 .flags = GENL_ADMIN_PERM,
2282 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2283 NL802154_FLAG_NEED_RTNL,
2284 },
2285 {
2286 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
2287 .doit = nl802154_wpan_phy_netns,
2288 .policy = nl802154_policy,
2289 .flags = GENL_ADMIN_PERM,
2290 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2291 NL802154_FLAG_NEED_RTNL,
2292 },
2293 {
2294 .cmd = NL802154_CMD_SET_PAN_ID,
2295 .doit = nl802154_set_pan_id,
2296 .policy = nl802154_policy,
2297 .flags = GENL_ADMIN_PERM,
2298 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2299 NL802154_FLAG_NEED_RTNL,
2300 },
2301 {
2302 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2303 .doit = nl802154_set_short_addr,
2304 .policy = nl802154_policy,
2305 .flags = GENL_ADMIN_PERM,
2306 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2307 NL802154_FLAG_NEED_RTNL,
2308 },
2309 {
2310 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2311 .doit = nl802154_set_backoff_exponent,
2312 .policy = nl802154_policy,
2313 .flags = GENL_ADMIN_PERM,
2314 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2315 NL802154_FLAG_NEED_RTNL,
2316 },
2317 {
2318 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2319 .doit = nl802154_set_max_csma_backoffs,
2320 .policy = nl802154_policy,
2321 .flags = GENL_ADMIN_PERM,
2322 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2323 NL802154_FLAG_NEED_RTNL,
2324 },
2325 {
2326 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2327 .doit = nl802154_set_max_frame_retries,
2328 .policy = nl802154_policy,
2329 .flags = GENL_ADMIN_PERM,
2330 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2331 NL802154_FLAG_NEED_RTNL,
2332 },
2333 {
2334 .cmd = NL802154_CMD_SET_LBT_MODE,
2335 .doit = nl802154_set_lbt_mode,
2336 .policy = nl802154_policy,
2337 .flags = GENL_ADMIN_PERM,
2338 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2339 NL802154_FLAG_NEED_RTNL,
2340 },
2341 {
2342 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2343 .doit = nl802154_set_ackreq_default,
2344 .policy = nl802154_policy,
2345 .flags = GENL_ADMIN_PERM,
2346 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2347 NL802154_FLAG_NEED_RTNL,
2348 },
2349 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2350 {
2351 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2352 .doit = nl802154_set_llsec_params,
2353 .policy = nl802154_policy,
2354 .flags = GENL_ADMIN_PERM,
2355 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2356 NL802154_FLAG_NEED_RTNL,
2357 },
2358 {
2359 .cmd = NL802154_CMD_GET_SEC_KEY,
2360 /* TODO .doit by matching key id? */
2361 .dumpit = nl802154_dump_llsec_key,
2362 .policy = nl802154_policy,
2363 .flags = GENL_ADMIN_PERM,
2364 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2365 NL802154_FLAG_NEED_RTNL,
2366 },
2367 {
2368 .cmd = NL802154_CMD_NEW_SEC_KEY,
2369 .doit = nl802154_add_llsec_key,
2370 .policy = nl802154_policy,
2371 .flags = GENL_ADMIN_PERM,
2372 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2373 NL802154_FLAG_NEED_RTNL,
2374 },
2375 {
2376 .cmd = NL802154_CMD_DEL_SEC_KEY,
2377 .doit = nl802154_del_llsec_key,
2378 .policy = nl802154_policy,
2379 .flags = GENL_ADMIN_PERM,
2380 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2381 NL802154_FLAG_NEED_RTNL,
2382 },
2383 /* TODO unique identifier must short+pan OR extended_addr */
2384 {
2385 .cmd = NL802154_CMD_GET_SEC_DEV,
2386 /* TODO .doit by matching extended_addr? */
2387 .dumpit = nl802154_dump_llsec_dev,
2388 .policy = nl802154_policy,
2389 .flags = GENL_ADMIN_PERM,
2390 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2391 NL802154_FLAG_NEED_RTNL,
2392 },
2393 {
2394 .cmd = NL802154_CMD_NEW_SEC_DEV,
2395 .doit = nl802154_add_llsec_dev,
2396 .policy = nl802154_policy,
2397 .flags = GENL_ADMIN_PERM,
2398 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2399 NL802154_FLAG_NEED_RTNL,
2400 },
2401 {
2402 .cmd = NL802154_CMD_DEL_SEC_DEV,
2403 .doit = nl802154_del_llsec_dev,
2404 .policy = nl802154_policy,
2405 .flags = GENL_ADMIN_PERM,
2406 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2407 NL802154_FLAG_NEED_RTNL,
2408 },
2409 /* TODO remove complete devkey, put it as nested? */
2410 {
2411 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2412 /* TODO doit by matching ??? */
2413 .dumpit = nl802154_dump_llsec_devkey,
2414 .policy = nl802154_policy,
2415 .flags = GENL_ADMIN_PERM,
2416 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2417 NL802154_FLAG_NEED_RTNL,
2418 },
2419 {
2420 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2421 .doit = nl802154_add_llsec_devkey,
2422 .policy = nl802154_policy,
2423 .flags = GENL_ADMIN_PERM,
2424 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2425 NL802154_FLAG_NEED_RTNL,
2426 },
2427 {
2428 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2429 .doit = nl802154_del_llsec_devkey,
2430 .policy = nl802154_policy,
2431 .flags = GENL_ADMIN_PERM,
2432 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2433 NL802154_FLAG_NEED_RTNL,
2434 },
2435 {
2436 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2437 /* TODO .doit by matching frame_type? */
2438 .dumpit = nl802154_dump_llsec_seclevel,
2439 .policy = nl802154_policy,
2440 .flags = GENL_ADMIN_PERM,
2441 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2442 NL802154_FLAG_NEED_RTNL,
2443 },
2444 {
2445 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2446 .doit = nl802154_add_llsec_seclevel,
2447 .policy = nl802154_policy,
2448 .flags = GENL_ADMIN_PERM,
2449 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2450 NL802154_FLAG_NEED_RTNL,
2451 },
2452 {
2453 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2454 /* TODO match frame_type only? */
2455 .doit = nl802154_del_llsec_seclevel,
2456 .policy = nl802154_policy,
2457 .flags = GENL_ADMIN_PERM,
2458 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2459 NL802154_FLAG_NEED_RTNL,
2460 },
2461 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2462 };
2463
2464 static struct genl_family nl802154_fam __ro_after_init = {
2465 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2466 .hdrsize = 0, /* no private header */
2467 .version = 1, /* no particular meaning now */
2468 .maxattr = NL802154_ATTR_MAX,
2469 .netnsok = true,
2470 .pre_doit = nl802154_pre_doit,
2471 .post_doit = nl802154_post_doit,
2472 .module = THIS_MODULE,
2473 .ops = nl802154_ops,
2474 .n_ops = ARRAY_SIZE(nl802154_ops),
2475 .mcgrps = nl802154_mcgrps,
2476 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2477 };
2478
2479 /* initialisation/exit functions */
2480 int __init nl802154_init(void)
2481 {
2482 return genl_register_family(&nl802154_fam);
2483 }
2484
2485 void nl802154_exit(void)
2486 {
2487 genl_unregister_family(&nl802154_fam);
2488 }
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