]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blame - net/ieee802154/nl802154.c
projects / mirror_ubuntu-eoan-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 173
[mirror_ubuntu-eoan-kernel.git] / net / ieee802154 / nl802154.c
CommitLineData
79fe1a2a
AA		 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"
ab0bd561 26#include "rdev-ops.h"
79fe1a2a
AA		 27#include "core.h"
28
79fe1a2a 29/* the netlink family */
489111e5 30static struct genl_family nl802154_fam;
79fe1a2a
AA		 31
32/* multicast groups */
33enum nl802154_multicast_groups {
34 NL802154_MCGRP_CONFIG,
35};
36
37static const struct genl_multicast_group nl802154_mcgrps[] = {
38 [NL802154_MCGRP_CONFIG] = { .name = "config", },
39};
40
41/* returns ERR_PTR values */
42static 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
66e5c267
AA		 68 if (wpan_phy_net(&rdev->wpan_phy) != netns)
69 continue;
79fe1a2a
AA		 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
97static 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
66e5c267
AA		 164 if (netns != wpan_phy_net(&rdev->wpan_phy))
165 return ERR_PTR(-ENODEV);
79fe1a2a
AA		 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 */
176static struct cfg802154_registered_device *
177cfg802154_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 */
183static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
ca20ce20
AA		 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 },
4b96aea0
AA		 189 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
190 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
ca20ce20
AA		 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
1a19cb68 197 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
ca20ce20 198
ba2a9506
AA		 199 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
200 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
e4390592 201 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
ca20ce20
AA		 202
203 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
4b96aea0
AA		 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, },
0e665457
AA		 216
217 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
133be026
VB		 218
219 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
c91208d8
AA		 220
221 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
a26c5fd7 222
66e5c267
AA		 223 [NL802154_ATTR_PID] = { .type = NLA_U32 },
224 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
a26c5fd7
AA		 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 */
79fe1a2a
AA		 236};
237
a26c5fd7
AA		 238#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
239static int
240nl802154_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]) {
8cb08174
JB		 250 err = nlmsg_parse_deprecated(cb->nlh,
251 GENL_HDRLEN + nl802154_fam.hdrsize,
252 genl_family_attrbuf(&nl802154_fam),
253 nl802154_fam.maxattr,
254 nl802154_policy, NULL);
a26c5fd7
AA		 255 if (err)
256 goto out_unlock;
257
258 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
c90c39da 259 genl_family_attrbuf(&nl802154_fam));
a26c5fd7
AA		 260 if (IS_ERR(*wpan_dev)) {
261 err = PTR_ERR(*wpan_dev);
262 goto out_unlock;
263 }
264 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
265 /* 0 is the first index - add 1 to parse only once */
266 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
267 cb->args[1] = (*wpan_dev)->identifier;
268 } else {
269 /* subtract the 1 again here */
270 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
271 struct wpan_dev *tmp;
272
273 if (!wpan_phy) {
274 err = -ENODEV;
275 goto out_unlock;
276 }
277 *rdev = wpan_phy_to_rdev(wpan_phy);
278 *wpan_dev = NULL;
279
280 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
281 if (tmp->identifier == cb->args[1]) {
282 *wpan_dev = tmp;
283 break;
284 }
285 }
286
287 if (!*wpan_dev) {
288 err = -ENODEV;
289 goto out_unlock;
290 }
291 }
292
293 return 0;
294 out_unlock:
295 rtnl_unlock();
296 return err;
297}
298
299static void
300nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
301{
302 rtnl_unlock();
303}
304#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
305
79fe1a2a
AA		 306/* message building helper */
307static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
308 int flags, u8 cmd)
309{
310 /* since there is no private header just add the generic one */
311 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
312}
313
0e665457
AA		 314static int
315nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
316{
ae0be8de 317 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr);
0e665457
AA		 318 int i;
319
320 if (!nl_flags)
321 return -ENOBUFS;
322
323 i = 0;
324 while (mask) {
325 if ((mask & 1) && nla_put_flag(msg, i))
326 return -ENOBUFS;
327
328 mask >>= 1;
329 i++;
330 }
331
332 nla_nest_end(msg, nl_flags);
333 return 0;
334}
335
ca20ce20
AA		 336static int
337nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
338 struct sk_buff *msg)
339{
340 struct nlattr *nl_page;
341 unsigned long page;
342
ae0be8de 343 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
ca20ce20
AA		 344 if (!nl_page)
345 return -ENOBUFS;
346
cb41c8dd 347 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
ca20ce20 348 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
72f655e4 349 rdev->wpan_phy.supported.channels[page]))
ca20ce20
AA		 350 return -ENOBUFS;
351 }
352 nla_nest_end(msg, nl_page);
353
354 return 0;
355}
356
0e665457
AA		 357static int
358nl802154_put_capabilities(struct sk_buff *msg,
359 struct cfg802154_registered_device *rdev)
360{
361 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
362 struct nlattr *nl_caps, *nl_channels;
363 int i;
364
ae0be8de 365 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS);
0e665457
AA		 366 if (!nl_caps)
367 return -ENOBUFS;
368
ae0be8de 369 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS);
0e665457
AA		 370 if (!nl_channels)
371 return -ENOBUFS;
372
373 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
374 if (caps->channels[i]) {
375 if (nl802154_put_flags(msg, i, caps->channels[i]))
376 return -ENOBUFS;
377 }
378 }
379
380 nla_nest_end(msg, nl_channels);
381
382 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
383 struct nlattr *nl_ed_lvls;
384
ae0be8de
MK		 385 nl_ed_lvls = nla_nest_start_noflag(msg,
386 NL802154_CAP_ATTR_CCA_ED_LEVELS);
0e665457
AA		 387 if (!nl_ed_lvls)
388 return -ENOBUFS;
389
390 for (i = 0; i < caps->cca_ed_levels_size; i++) {
391 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
392 return -ENOBUFS;
393 }
394
395 nla_nest_end(msg, nl_ed_lvls);
396 }
397
398 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
399 struct nlattr *nl_tx_pwrs;
400
ae0be8de
MK		 401 nl_tx_pwrs = nla_nest_start_noflag(msg,
402 NL802154_CAP_ATTR_TX_POWERS);
0e665457
AA		 403 if (!nl_tx_pwrs)
404 return -ENOBUFS;
405
406 for (i = 0; i < caps->tx_powers_size; i++) {
407 if (nla_put_s32(msg, i, caps->tx_powers[i]))
408 return -ENOBUFS;
409 }
410
411 nla_nest_end(msg, nl_tx_pwrs);
412 }
413
414 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
415 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
416 caps->cca_modes) ||
417 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
418 caps->cca_opts))
419 return -ENOBUFS;
420 }
421
422 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
423 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
424 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
425 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
426 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
427 caps->min_csma_backoffs) ||
428 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
429 caps->max_csma_backoffs) ||
430 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
431 caps->min_frame_retries) ||
432 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
433 caps->max_frame_retries) ||
434 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
435 caps->iftypes) ||
436 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
437 return -ENOBUFS;
438
439 nla_nest_end(msg, nl_caps);
440
441 return 0;
442}
443
ca20ce20
AA		 444static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
445 enum nl802154_commands cmd,
446 struct sk_buff *msg, u32 portid, u32 seq,
447 int flags)
448{
133be026 449 struct nlattr *nl_cmds;
ca20ce20 450 void *hdr;
133be026 451 int i;
ca20ce20
AA		 452
453 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
454 if (!hdr)
455 return -ENOBUFS;
456
457 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
458 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
459 wpan_phy_name(&rdev->wpan_phy)) ||
460 nla_put_u32(msg, NL802154_ATTR_GENERATION,
461 cfg802154_rdev_list_generation))
462 goto nla_put_failure;
463
464 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
465 goto finish;
466
467 /* DUMP PHY PIB */
468
469 /* current channel settings */
470 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
471 rdev->wpan_phy.current_page) ||
472 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
473 rdev->wpan_phy.current_channel))
474 goto nla_put_failure;
475
0e665457
AA		 476 /* TODO remove this behaviour, we still keep support it for a while
477 * so users can change the behaviour to the new one.
478 */
ca20ce20
AA		 479 if (nl802154_send_wpan_phy_channels(rdev, msg))
480 goto nla_put_failure;
481
482 /* cca mode */
edea8f7c
AA		 483 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
484 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
485 rdev->wpan_phy.cca.mode))
ba2a9506 486 goto nla_put_failure;
edea8f7c
AA		 487
488 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
489 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
490 rdev->wpan_phy.cca.opt))
491 goto nla_put_failure;
492 }
ba2a9506
AA		 493 }
494
edea8f7c
AA		 495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
496 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
497 rdev->wpan_phy.transmit_power))
498 goto nla_put_failure;
499 }
ca20ce20 500
e4390592
AA		 501 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
502 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
503 rdev->wpan_phy.cca_ed_level))
504 goto nla_put_failure;
505 }
506
0e665457
AA		 507 if (nl802154_put_capabilities(msg, rdev))
508 goto nla_put_failure;
509
ae0be8de 510 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
133be026
VB		 511 if (!nl_cmds)
512 goto nla_put_failure;
513
514 i = 0;
515#define CMD(op, n) \
516 do { \
517 if (rdev->ops->op) { \
518 i++; \
519 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
520 goto nla_put_failure; \
521 } \
522 } while (0)
523
524 CMD(add_virtual_intf, NEW_INTERFACE);
525 CMD(del_virtual_intf, DEL_INTERFACE);
526 CMD(set_channel, SET_CHANNEL);
527 CMD(set_pan_id, SET_PAN_ID);
528 CMD(set_short_addr, SET_SHORT_ADDR);
529 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
530 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
531 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
532 CMD(set_lbt_mode, SET_LBT_MODE);
c91208d8 533 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
133be026
VB		 534
535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
536 CMD(set_tx_power, SET_TX_POWER);
537
538 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
539 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
540
541 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
542 CMD(set_cca_mode, SET_CCA_MODE);
543
544#undef CMD
545 nla_nest_end(msg, nl_cmds);
546
ca20ce20 547finish:
053c095a
JB		 548 genlmsg_end(msg, hdr);
549 return 0;
ca20ce20
AA		 550
551nla_put_failure:
552 genlmsg_cancel(msg, hdr);
553 return -EMSGSIZE;
554}
555
556struct nl802154_dump_wpan_phy_state {
557 s64 filter_wpan_phy;
558 long start;
559
560};
561
562static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
563 struct netlink_callback *cb,
564 struct nl802154_dump_wpan_phy_state *state)
565{
c90c39da 566 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam);
8cb08174
JB		 567 int ret = nlmsg_parse_deprecated(cb->nlh,
568 GENL_HDRLEN + nl802154_fam.hdrsize,
569 tb, nl802154_fam.maxattr,
570 nl802154_policy, NULL);
ca20ce20
AA		 571
572 /* TODO check if we can handle error here,
573 * we have no backward compatibility
574 */
575 if (ret)
576 return 0;
577
578 if (tb[NL802154_ATTR_WPAN_PHY])
579 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
580 if (tb[NL802154_ATTR_WPAN_DEV])
581 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
582 if (tb[NL802154_ATTR_IFINDEX]) {
583 struct net_device *netdev;
584 struct cfg802154_registered_device *rdev;
585 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
586
ca20ce20
AA		 587 netdev = __dev_get_by_index(&init_net, ifidx);
588 if (!netdev)
589 return -ENODEV;
590 if (netdev->ieee802154_ptr) {
591 rdev = wpan_phy_to_rdev(
592 netdev->ieee802154_ptr->wpan_phy);
593 state->filter_wpan_phy = rdev->wpan_phy_idx;
594 }
595 }
596
597 return 0;
598}
599
600static int
601nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
602{
603 int idx = 0, ret;
604 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
605 struct cfg802154_registered_device *rdev;
606
607 rtnl_lock();
608 if (!state) {
609 state = kzalloc(sizeof(*state), GFP_KERNEL);
610 if (!state) {
611 rtnl_unlock();
612 return -ENOMEM;
613 }
614 state->filter_wpan_phy = -1;
615 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
616 if (ret) {
617 kfree(state);
618 rtnl_unlock();
619 return ret;
620 }
621 cb->args[0] = (long)state;
622 }
623
624 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 625 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
626 continue;
ca20ce20
AA		 627 if (++idx <= state->start)
628 continue;
629 if (state->filter_wpan_phy != -1 &&
630 state->filter_wpan_phy != rdev->wpan_phy_idx)
631 continue;
632 /* attempt to fit multiple wpan_phy data chunks into the skb */
633 ret = nl802154_send_wpan_phy(rdev,
634 NL802154_CMD_NEW_WPAN_PHY,
635 skb,
636 NETLINK_CB(cb->skb).portid,
637 cb->nlh->nlmsg_seq, NLM_F_MULTI);
638 if (ret < 0) {
639 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
640 !skb->len && cb->min_dump_alloc < 4096) {
641 cb->min_dump_alloc = 4096;
642 rtnl_unlock();
643 return 1;
644 }
645 idx--;
646 break;
647 }
648 break;
649 }
650 rtnl_unlock();
651
652 state->start = idx;
653
654 return skb->len;
655}
656
657static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
658{
659 kfree((void *)cb->args[0]);
660 return 0;
661}
662
663static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
664{
665 struct sk_buff *msg;
666 struct cfg802154_registered_device *rdev = info->user_ptr[0];
667
668 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
669 if (!msg)
670 return -ENOMEM;
671
672 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
673 info->snd_portid, info->snd_seq, 0) < 0) {
674 nlmsg_free(msg);
675 return -ENOBUFS;
676 }
677
678 return genlmsg_reply(msg, info);
679}
680
4b96aea0
AA		 681static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
682{
683 return (u64)wpan_dev->identifier |
684 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
685}
686
a26c5fd7
AA		 687#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
688#include <net/ieee802154_netdev.h>
689
690static int
691ieee802154_llsec_send_key_id(struct sk_buff *msg,
692 const struct ieee802154_llsec_key_id *desc)
693{
694 struct nlattr *nl_dev_addr;
695
696 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
697 return -ENOBUFS;
698
699 switch (desc->mode) {
700 case NL802154_KEY_ID_MODE_IMPLICIT:
ae0be8de
MK		 701 nl_dev_addr = nla_nest_start_noflag(msg,
702 NL802154_KEY_ID_ATTR_IMPLICIT);
a26c5fd7
AA		 703 if (!nl_dev_addr)
704 return -ENOBUFS;
705
706 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
707 desc->device_addr.pan_id) ||
708 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
709 desc->device_addr.mode))
710 return -ENOBUFS;
711
712 switch (desc->device_addr.mode) {
713 case NL802154_DEV_ADDR_SHORT:
714 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
715 desc->device_addr.short_addr))
716 return -ENOBUFS;
717 break;
718 case NL802154_DEV_ADDR_EXTENDED:
719 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
e7479122
ND		 720 desc->device_addr.extended_addr,
721 NL802154_DEV_ADDR_ATTR_PAD))
a26c5fd7
AA		 722 return -ENOBUFS;
723 break;
724 default:
725 /* userspace should handle unknown */
726 break;
727 }
728
729 nla_nest_end(msg, nl_dev_addr);
730 break;
731 case NL802154_KEY_ID_MODE_INDEX:
732 break;
733 case NL802154_KEY_ID_MODE_INDEX_SHORT:
734 /* TODO renmae short_source? */
735 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
736 desc->short_source))
737 return -ENOBUFS;
738 break;
739 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
740 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
e7479122
ND		 741 desc->extended_source,
742 NL802154_KEY_ID_ATTR_PAD))
a26c5fd7
AA		 743 return -ENOBUFS;
744 break;
745 default:
746 /* userspace should handle unknown */
747 break;
748 }
749
750 /* TODO key_id to key_idx ? Check naming */
751 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
752 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
753 return -ENOBUFS;
754 }
755
756 return 0;
757}
758
759static int nl802154_get_llsec_params(struct sk_buff *msg,
760 struct cfg802154_registered_device *rdev,
761 struct wpan_dev *wpan_dev)
762{
763 struct nlattr *nl_key_id;
764 struct ieee802154_llsec_params params;
765 int ret;
766
767 ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
768 if (ret < 0)
769 return ret;
770
771 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
772 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
773 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
774 params.frame_counter))
775 return -ENOBUFS;
776
ae0be8de 777 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
a26c5fd7
AA		 778 if (!nl_key_id)
779 return -ENOBUFS;
780
781 ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
782 if (ret < 0)
783 return ret;
784
785 nla_nest_end(msg, nl_key_id);
786
787 return 0;
788}
789#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
790
4b96aea0
AA		 791static int
792nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
793 struct cfg802154_registered_device *rdev,
794 struct wpan_dev *wpan_dev)
795{
796 struct net_device *dev = wpan_dev->netdev;
797 void *hdr;
798
799 hdr = nl802154hdr_put(msg, portid, seq, flags,
800 NL802154_CMD_NEW_INTERFACE);
801 if (!hdr)
802 return -1;
803
804 if (dev &&
805 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
806 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
807 goto nla_put_failure;
808
809 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
810 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
a558da09
ND		 811 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
812 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
4b96aea0
AA		 813 nla_put_u32(msg, NL802154_ATTR_GENERATION,
814 rdev->devlist_generation ^
815 (cfg802154_rdev_list_generation << 2)))
816 goto nla_put_failure;
817
818 /* address settings */
819 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
e7479122
ND		 820 wpan_dev->extended_addr,
821 NL802154_ATTR_PAD) ||
4b96aea0
AA		 822 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
823 wpan_dev->short_addr) ||
824 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
825 goto nla_put_failure;
826
827 /* ARET handling */
828 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
829 wpan_dev->frame_retries) ||
830 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
831 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
832 wpan_dev->csma_retries) ||
833 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
834 goto nla_put_failure;
835
836 /* listen before transmit */
837 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
838 goto nla_put_failure;
839
c91208d8
AA		 840 /* ackreq default behaviour */
841 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
842 goto nla_put_failure;
843
a26c5fd7
AA		 844#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
845 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
846 goto nla_put_failure;
847#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
848
053c095a
JB		 849 genlmsg_end(msg, hdr);
850 return 0;
4b96aea0
AA		 851
852nla_put_failure:
853 genlmsg_cancel(msg, hdr);
854 return -EMSGSIZE;
855}
856
857static int
858nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
859{
860 int wp_idx = 0;
861 int if_idx = 0;
862 int wp_start = cb->args[0];
863 int if_start = cb->args[1];
864 struct cfg802154_registered_device *rdev;
865 struct wpan_dev *wpan_dev;
866
867 rtnl_lock();
868 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 869 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
870 continue;
4b96aea0
AA		 871 if (wp_idx < wp_start) {
872 wp_idx++;
873 continue;
874 }
875 if_idx = 0;
876
877 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
878 if (if_idx < if_start) {
879 if_idx++;
880 continue;
881 }
882 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
883 cb->nlh->nlmsg_seq, NLM_F_MULTI,
884 rdev, wpan_dev) < 0) {
885 goto out;
886 }
887 if_idx++;
888 }
889
890 wp_idx++;
891 }
892out:
893 rtnl_unlock();
894
895 cb->args[0] = wp_idx;
896 cb->args[1] = if_idx;
897
898 return skb->len;
899}
900
901static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
902{
903 struct sk_buff *msg;
904 struct cfg802154_registered_device *rdev = info->user_ptr[0];
905 struct wpan_dev *wdev = info->user_ptr[1];
906
907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
908 if (!msg)
909 return -ENOMEM;
910
911 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
912 rdev, wdev) < 0) {
913 nlmsg_free(msg);
914 return -ENOBUFS;
915 }
916
917 return genlmsg_reply(msg, info);
918}
919
f3ea5e44
AA		 920static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
921{
922 struct cfg802154_registered_device *rdev = info->user_ptr[0];
923 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
0e57547e 924 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
f3ea5e44
AA		 925
926 /* TODO avoid failing a new interface
927 * creation due to pending removal?
928 */
929
930 if (!info->attrs[NL802154_ATTR_IFNAME])
931 return -EINVAL;
932
933 if (info->attrs[NL802154_ATTR_IFTYPE]) {
934 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
65318680
AA		 935 if (type > NL802154_IFTYPE_MAX ||
936 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
f3ea5e44
AA		 937 return -EINVAL;
938 }
939
0e57547e 940 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
1ee06ef1 941 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
0e57547e 942
f3ea5e44
AA		 943 if (!rdev->ops->add_virtual_intf)
944 return -EOPNOTSUPP;
945
946 return rdev_add_virtual_intf(rdev,
947 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
5b4a1039 948 NET_NAME_USER, type, extended_addr);
f3ea5e44
AA		 949}
950
b821ecd4
AA		 951static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
952{
953 struct cfg802154_registered_device *rdev = info->user_ptr[0];
954 struct wpan_dev *wpan_dev = info->user_ptr[1];
955
956 if (!rdev->ops->del_virtual_intf)
957 return -EOPNOTSUPP;
958
959 /* If we remove a wpan device without a netdev then clear
960 * user_ptr[1] so that nl802154_post_doit won't dereference it
961 * to check if it needs to do dev_put(). Otherwise it crashes
962 * since the wpan_dev has been freed, unlike with a netdev where
963 * we need the dev_put() for the netdev to really be freed.
964 */
965 if (!wpan_dev->netdev)
966 info->user_ptr[1] = NULL;
967
968 return rdev_del_virtual_intf(rdev, wpan_dev);
969}
970
ab0bd561
AA		 971static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
972{
973 struct cfg802154_registered_device *rdev = info->user_ptr[0];
974 u8 channel, page;
975
976 if (!info->attrs[NL802154_ATTR_PAGE] ||
977 !info->attrs[NL802154_ATTR_CHANNEL])
978 return -EINVAL;
979
980 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
981 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
982
983 /* check 802.15.4 constraints */
673692fa 984 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
72f655e4 985 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
ab0bd561
AA		 986 return -EINVAL;
987
988 return rdev_set_channel(rdev, page, channel);
989}
990
ba2a9506
AA		 991static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
992{
993 struct cfg802154_registered_device *rdev = info->user_ptr[0];
994 struct wpan_phy_cca cca;
995
fc4f8052 996 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
edea8f7c
AA		 997 return -EOPNOTSUPP;
998
ba2a9506
AA		 999 if (!info->attrs[NL802154_ATTR_CCA_MODE])
1000 return -EINVAL;
1001
1002 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1003 /* checking 802.15.4 constraints */
fea3318d
AA		 1004 if (cca.mode < NL802154_CCA_ENERGY ||
1005 cca.mode > NL802154_CCA_ATTR_MAX ||
1006 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
ba2a9506
AA		 1007 return -EINVAL;
1008
1009 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1010 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1011 return -EINVAL;
1012
1013 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
fea3318d
AA		 1014 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1015 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
ba2a9506
AA		 1016 return -EINVAL;
1017 }
1018
1019 return rdev_set_cca_mode(rdev, &cca);
1020}
1021
b69644c1
AA		 1022static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1023{
1024 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1025 s32 ed_level;
1026 int i;
1027
1028 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1029 return -EOPNOTSUPP;
1030
1031 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1032 return -EINVAL;
1033
1034 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1035
1036 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1037 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1038 return rdev_set_cca_ed_level(rdev, ed_level);
1039 }
1040
1041 return -EINVAL;
1042}
1043
0f999b09
VB		 1044static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1045{
1046 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1047 s32 power;
1048 int i;
1049
1050 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1051 return -EOPNOTSUPP;
1052
1053 if (!info->attrs[NL802154_ATTR_TX_POWER])
1054 return -EINVAL;
1055
1056 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1057
1058 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1059 if (power == rdev->wpan_phy.supported.tx_powers[i])
1060 return rdev_set_tx_power(rdev, power);
1061 }
1062
1063 return -EINVAL;
1064}
1065
702bf371
AA		 1066static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1067{
1068 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1069 struct net_device *dev = info->user_ptr[1];
1070 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1071 __le16 pan_id;
702bf371
AA		 1072
1073 /* conflict here while tx/rx calls */
1074 if (netif_running(dev))
1075 return -EBUSY;
1076
9e3b71f3
AA		 1077 if (wpan_dev->lowpan_dev) {
1078 if (netif_running(wpan_dev->lowpan_dev))
1079 return -EBUSY;
1080 }
1081
702bf371 1082 /* don't change address fields on monitor */
0cf0879a
AA		 1083 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1084 !info->attrs[NL802154_ATTR_PAN_ID])
702bf371
AA		 1085 return -EINVAL;
1086
ee7b9053 1087 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
702bf371 1088
673692fa
AA		 1089 /* TODO
1090 * I am not sure about to check here on broadcast pan_id.
1091 * Broadcast is a valid setting, comment from 802.15.4:
1092 * If this value is 0xffff, the device is not associated.
1093 *
1094 * This could useful to simple deassociate an device.
1095 */
1096 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1097 return -EINVAL;
1098
702bf371
AA		 1099 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1100}
1101
9830c62a
AA		 1102static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1103{
1104 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1105 struct net_device *dev = info->user_ptr[1];
1106 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1107 __le16 short_addr;
9830c62a
AA		 1108
1109 /* conflict here while tx/rx calls */
1110 if (netif_running(dev))
1111 return -EBUSY;
1112
9e3b71f3
AA		 1113 if (wpan_dev->lowpan_dev) {
1114 if (netif_running(wpan_dev->lowpan_dev))
1115 return -EBUSY;
1116 }
1117
9830c62a 1118 /* don't change address fields on monitor */
0cf0879a
AA		 1119 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1120 !info->attrs[NL802154_ATTR_SHORT_ADDR])
9830c62a
AA		 1121 return -EINVAL;
1122
ee7b9053 1123 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
9830c62a 1124
673692fa
AA		 1125 /* TODO
1126 * I am not sure about to check here on broadcast short_addr.
1127 * Broadcast is a valid setting, comment from 802.15.4:
1128 * A value of 0xfffe indicates that the device has
1129 * associated but has not been allocated an address. A
1130 * value of 0xffff indicates that the device does not
1131 * have a short address.
1132 *
1133 * I think we should allow to set these settings but
1134 * don't allow to allow socket communication with it.
1135 */
1136 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1137 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1138 return -EINVAL;
1139
9830c62a
AA		 1140 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1141}
1142
656a999e
AA		 1143static int
1144nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1145{
1146 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1147 struct net_device *dev = info->user_ptr[1];
1148 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1149 u8 min_be, max_be;
1150
1151 /* should be set on netif open inside phy settings */
1152 if (netif_running(dev))
1153 return -EBUSY;
1154
1155 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1156 !info->attrs[NL802154_ATTR_MAX_BE])
1157 return -EINVAL;
1158
1159 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1160 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1161
1162 /* check 802.15.4 constraints */
fea3318d
AA		 1163 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1164 min_be > rdev->wpan_phy.supported.max_minbe ||
1165 max_be < rdev->wpan_phy.supported.min_maxbe ||
1166 max_be > rdev->wpan_phy.supported.max_maxbe ||
1167 min_be > max_be)
656a999e
AA		 1168 return -EINVAL;
1169
1170 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1171}
1172
a01ba765
AA		 1173static int
1174nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1175{
1176 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1177 struct net_device *dev = info->user_ptr[1];
1178 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1179 u8 max_csma_backoffs;
1180
1181 /* conflict here while other running iface settings */
1182 if (netif_running(dev))
1183 return -EBUSY;
1184
1185 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1186 return -EINVAL;
1187
1188 max_csma_backoffs = nla_get_u8(
1189 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1190
1191 /* check 802.15.4 constraints */
fea3318d
AA		 1192 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1193 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
a01ba765
AA		 1194 return -EINVAL;
1195
1196 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1197}
1198
17a3a46b
AA		 1199static int
1200nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1201{
1202 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1203 struct net_device *dev = info->user_ptr[1];
1204 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1205 s8 max_frame_retries;
1206
1207 if (netif_running(dev))
1208 return -EBUSY;
1209
1210 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1211 return -EINVAL;
1212
1213 max_frame_retries = nla_get_s8(
1214 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1215
1216 /* check 802.15.4 constraints */
fea3318d
AA		 1217 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1218 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
17a3a46b
AA		 1219 return -EINVAL;
1220
1221 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1222}
1223
c8937a1d
AA		 1224static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1225{
1226 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1227 struct net_device *dev = info->user_ptr[1];
1228 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1229 int mode;
c8937a1d
AA		 1230
1231 if (netif_running(dev))
1232 return -EBUSY;
1233
1234 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1235 return -EINVAL;
1236
4e1795de
SS		 1237 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1238
1239 if (mode != 0 && mode != 1)
1240 return -EINVAL;
1241
fea3318d
AA		 1242 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1243 return -EINVAL;
1244
c8937a1d
AA		 1245 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1246}
1247
c91208d8
AA		 1248static int
1249nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1250{
1251 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1252 struct net_device *dev = info->user_ptr[1];
1253 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1254 int ackreq;
c91208d8
AA		 1255
1256 if (netif_running(dev))
1257 return -EBUSY;
1258
1259 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1260 return -EINVAL;
1261
4e1795de
SS		 1262 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1263
1264 if (ackreq != 0 && ackreq != 1)
1265 return -EINVAL;
1266
c91208d8
AA		 1267 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1268}
1269
66e5c267
AA		 1270static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1271{
1272 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1273 struct net *net;
1274 int err;
1275
1276 if (info->attrs[NL802154_ATTR_PID]) {
1277 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1278
1279 net = get_net_ns_by_pid(pid);
1280 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1281 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1282
1283 net = get_net_ns_by_fd(fd);
1284 } else {
1285 return -EINVAL;
1286 }
1287
1288 if (IS_ERR(net))
1289 return PTR_ERR(net);
1290
1291 err = 0;
1292
1293 /* check if anything to do */
1294 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1295 err = cfg802154_switch_netns(rdev, net);
1296
1297 put_net(net);
1298 return err;
1299}
1300
a26c5fd7
AA		 1301#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1302static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1303 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1304 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1305 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1306 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1307};
79fe1a2a 1308
a26c5fd7
AA		 1309static int
1310ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1311 struct ieee802154_addr *addr)
79fe1a2a 1312{
a26c5fd7 1313 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
79fe1a2a 1314
8cb08174 1315 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
a26c5fd7 1316 return -EINVAL;
79fe1a2a 1317
421eeea1
BD		 1318 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1319 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
a26c5fd7
AA		 1320 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1321 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1322 return -EINVAL;
79fe1a2a 1323
a26c5fd7
AA		 1324 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1325 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1326 switch (addr->mode) {
1327 case NL802154_DEV_ADDR_SHORT:
1328 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1329 break;
1330 case NL802154_DEV_ADDR_EXTENDED:
1331 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1332 break;
1333 default:
1334 return -EINVAL;
1335 }
79fe1a2a 1336
a26c5fd7
AA		 1337 return 0;
1338}
79fe1a2a 1339
a26c5fd7
AA		 1340static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1341 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1342 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1343 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1344 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1345 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1346};
79fe1a2a 1347
a26c5fd7
AA		 1348static int
1349ieee802154_llsec_parse_key_id(struct nlattr *nla,
1350 struct ieee802154_llsec_key_id *desc)
1351{
1352 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
79fe1a2a 1353
8cb08174 1354 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL))
a26c5fd7 1355 return -EINVAL;
79fe1a2a 1356
a26c5fd7
AA		 1357 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1358 return -EINVAL;
1359
1360 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1361 switch (desc->mode) {
1362 case NL802154_KEY_ID_MODE_IMPLICIT:
1363 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1364 return -EINVAL;
1365
1366 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1367 &desc->device_addr) < 0)
1368 return -EINVAL;
1369 break;
1370 case NL802154_KEY_ID_MODE_INDEX:
1371 break;
1372 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1373 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1374 return -EINVAL;
1375
1376 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1377 break;
1378 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1379 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1380 return -EINVAL;
1381
1382 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1383 break;
1384 default:
1385 return -EINVAL;
1386 }
1387
1388 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1389 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1390 return -EINVAL;
1391
1392 /* TODO change id to idx */
1393 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
79fe1a2a
AA		 1394 }
1395
1396 return 0;
1397}
1398
a26c5fd7
AA		 1399static int nl802154_set_llsec_params(struct sk_buff *skb,
1400 struct genl_info *info)
79fe1a2a 1401{
a26c5fd7
AA		 1402 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1403 struct net_device *dev = info->user_ptr[1];
1404 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1405 struct ieee802154_llsec_params params;
1406 u32 changed = 0;
1407 int ret;
79fe1a2a 1408
a26c5fd7
AA		 1409 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1410 u8 enabled;
1411
1412 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1413 if (enabled != 0 && enabled != 1)
1414 return -EINVAL;
1415
1416 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1417 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1418 }
1419
1420 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1421 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1422 &params.out_key);
1423 if (ret < 0)
1424 return ret;
1425
1426 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1427 }
1428
1429 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1430 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1431 if (params.out_level > NL802154_SECLEVEL_MAX)
1432 return -EINVAL;
1433
1434 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1435 }
1436
1437 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1438 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1439 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1440 }
1441
1442 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1443}
1444
1445static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1446 u32 seq, int flags,
1447 struct cfg802154_registered_device *rdev,
1448 struct net_device *dev,
1449 const struct ieee802154_llsec_key_entry *key)
1450{
1451 void *hdr;
1452 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1453 struct nlattr *nl_key, *nl_key_id;
1454
1455 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1456 if (!hdr)
1457 return -1;
1458
1459 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1460 goto nla_put_failure;
1461
ae0be8de 1462 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
a26c5fd7
AA		 1463 if (!nl_key)
1464 goto nla_put_failure;
1465
ae0be8de 1466 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
a26c5fd7
AA		 1467 if (!nl_key_id)
1468 goto nla_put_failure;
1469
1470 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1471 goto nla_put_failure;
1472
1473 nla_nest_end(msg, nl_key_id);
1474
1475 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1476 key->key->frame_types))
1477 goto nla_put_failure;
1478
1479 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1480 /* TODO for each nested */
1481 memset(commands, 0, sizeof(commands));
1482 commands[7] = key->key->cmd_frame_ids;
1483 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1484 sizeof(commands), commands))
1485 goto nla_put_failure;
1486 }
1487
1488 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1489 key->key->key))
1490 goto nla_put_failure;
1491
1492 nla_nest_end(msg, nl_key);
1493 genlmsg_end(msg, hdr);
1494
1495 return 0;
1496
1497nla_put_failure:
1498 genlmsg_cancel(msg, hdr);
1499 return -EMSGSIZE;
1500}
1501
1502static int
1503nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1504{
1505 struct cfg802154_registered_device *rdev = NULL;
1506 struct ieee802154_llsec_key_entry *key;
1507 struct ieee802154_llsec_table *table;
1508 struct wpan_dev *wpan_dev;
1509 int err;
1510
1511 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1512 if (err)
1513 return err;
1514
1515 if (!wpan_dev->netdev) {
1516 err = -EINVAL;
1517 goto out_err;
1518 }
1519
1520 rdev_lock_llsec_table(rdev, wpan_dev);
1521 rdev_get_llsec_table(rdev, wpan_dev, &table);
1522
1523 /* TODO make it like station dump */
1524 if (cb->args[2])
1525 goto out;
1526
1527 list_for_each_entry(key, &table->keys, list) {
1528 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1529 NETLINK_CB(cb->skb).portid,
1530 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1531 rdev, wpan_dev->netdev, key) < 0) {
1532 /* TODO */
1533 err = -EIO;
1534 rdev_unlock_llsec_table(rdev, wpan_dev);
1535 goto out_err;
79fe1a2a
AA		 1536 }
1537 }
1538
a26c5fd7
AA		 1539 cb->args[2] = 1;
1540
1541out:
1542 rdev_unlock_llsec_table(rdev, wpan_dev);
1543 err = skb->len;
1544out_err:
1545 nl802154_finish_wpan_dev_dump(rdev);
1546
1547 return err;
79fe1a2a
AA		 1548}
1549
a26c5fd7
AA		 1550static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1551 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1552 /* TODO handle it as for_each_nested and NLA_FLAG? */
1553 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1554 /* TODO handle it as for_each_nested, not static array? */
1555 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1556 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1557};
1558
1559static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1560{
1561 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1562 struct net_device *dev = info->user_ptr[1];
1563 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1564 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1565 struct ieee802154_llsec_key key = { };
1566 struct ieee802154_llsec_key_id id = { };
1567 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1568
8cb08174 1569 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1570 return -EINVAL;
1571
1572 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1573 !attrs[NL802154_KEY_ATTR_BYTES])
aa655562 1574 return -EINVAL;
a26c5fd7
AA		 1575
1576 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1577 return -ENOBUFS;
1578
1579 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1580 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1581 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1582 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1583 return -EINVAL;
1584
1585 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1586 /* TODO for each nested */
1587 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1588 NL802154_CMD_FRAME_NR_IDS / 8);
1589
1590 /* TODO understand the -EINVAL logic here? last condition */
1591 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1592 commands[4] || commands[5] || commands[6] ||
1593 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1594 return -EINVAL;
1595
1596 key.cmd_frame_ids = commands[7];
1597 } else {
1598 key.cmd_frame_ids = 0;
1599 }
1600
1601 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1602
1603 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1604 return -ENOBUFS;
1605
1606 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1607}
1608
1609static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1610{
1611 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1612 struct net_device *dev = info->user_ptr[1];
1613 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1614 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1615 struct ieee802154_llsec_key_id id;
1616
8cb08174 1617 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 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
1626static 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
ae0be8de 1642 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
a26c5fd7
AA		 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,
e7479122 1652 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
a26c5fd7
AA		 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
1663nla_put_failure:
1664 genlmsg_cancel(msg, hdr);
1665 return -EMSGSIZE;
1666}
1667
1668static int
1669nl802154_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
1707out:
1708 rdev_unlock_llsec_table(rdev, wpan_dev);
1709 err = skb->len;
1710out_err:
1711 nl802154_finish_wpan_dev_dump(rdev);
1712
1713 return err;
1714}
1715
1716static 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
1725static int
1726ieee802154_llsec_parse_device(struct nlattr *nla,
1727 struct ieee802154_llsec_device *dev)
1728{
1729 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1730
8cb08174 1731 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
a26c5fd7
AA		 1732 return -EINVAL;
1733
1734 memset(dev, 0, sizeof(*dev));
1735
1736 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1737 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1738 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1739 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1740 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1741 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1742 return -EINVAL;
1743
1744 /* TODO be32 */
1745 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1746 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1747 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1748 /* TODO rename hwaddr to extended_addr */
1749 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1750 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1751 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1752
1753 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1754 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1755 return -EINVAL;
1756
1757 return 0;
1758}
1759
1760static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1761{
1762 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1763 struct net_device *dev = info->user_ptr[1];
1764 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1765 struct ieee802154_llsec_device dev_desc;
1766
1767 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1768 &dev_desc) < 0)
1769 return -EINVAL;
1770
1771 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1772}
1773
1774static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1775{
1776 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1777 struct net_device *dev = info->user_ptr[1];
1778 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1779 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1780 __le64 extended_addr;
1781
8cb08174 1782 if (nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
a26c5fd7
AA		 1783 return -EINVAL;
1784
1785 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1786 return -EINVAL;
1787
1788 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1789 return rdev_del_device(rdev, wpan_dev, extended_addr);
1790}
1791
1792static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1793 u32 seq, int flags,
1794 struct cfg802154_registered_device *rdev,
1795 struct net_device *dev, __le64 extended_addr,
1796 const struct ieee802154_llsec_device_key *devkey)
1797{
1798 void *hdr;
1799 struct nlattr *nl_devkey, *nl_key_id;
1800
1801 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1802 if (!hdr)
1803 return -1;
1804
1805 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1806 goto nla_put_failure;
1807
ae0be8de 1808 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
a26c5fd7
AA		 1809 if (!nl_devkey)
1810 goto nla_put_failure;
1811
1812 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
e7479122 1813 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
a26c5fd7
AA		 1814 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1815 devkey->frame_counter))
1816 goto nla_put_failure;
1817
ae0be8de 1818 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
a26c5fd7
AA		 1819 if (!nl_key_id)
1820 goto nla_put_failure;
1821
1822 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1823 goto nla_put_failure;
1824
1825 nla_nest_end(msg, nl_key_id);
1826 nla_nest_end(msg, nl_devkey);
1827 genlmsg_end(msg, hdr);
1828
1829 return 0;
1830
1831nla_put_failure:
1832 genlmsg_cancel(msg, hdr);
1833 return -EMSGSIZE;
1834}
1835
1836static int
1837nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1838{
1839 struct cfg802154_registered_device *rdev = NULL;
1840 struct ieee802154_llsec_device_key *kpos;
1841 struct ieee802154_llsec_device *dpos;
1842 struct ieee802154_llsec_table *table;
1843 struct wpan_dev *wpan_dev;
1844 int err;
1845
1846 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1847 if (err)
1848 return err;
1849
1850 if (!wpan_dev->netdev) {
1851 err = -EINVAL;
1852 goto out_err;
1853 }
1854
1855 rdev_lock_llsec_table(rdev, wpan_dev);
1856 rdev_get_llsec_table(rdev, wpan_dev, &table);
1857
1858 /* TODO make it like station dump */
1859 if (cb->args[2])
1860 goto out;
1861
1862 /* TODO look if remove devkey and do some nested attribute */
1863 list_for_each_entry(dpos, &table->devices, list) {
1864 list_for_each_entry(kpos, &dpos->keys, list) {
1865 if (nl802154_send_devkey(skb,
1866 NL802154_CMD_NEW_SEC_LEVEL,
1867 NETLINK_CB(cb->skb).portid,
1868 cb->nlh->nlmsg_seq,
1869 NLM_F_MULTI, rdev,
1870 wpan_dev->netdev,
1871 dpos->hwaddr,
1872 kpos) < 0) {
1873 /* TODO */
1874 err = -EIO;
1875 rdev_unlock_llsec_table(rdev, wpan_dev);
1876 goto out_err;
1877 }
1878 }
1879 }
1880
1881 cb->args[2] = 1;
1882
1883out:
1884 rdev_unlock_llsec_table(rdev, wpan_dev);
1885 err = skb->len;
1886out_err:
1887 nl802154_finish_wpan_dev_dump(rdev);
1888
1889 return err;
1890}
1891
1892static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1893 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1894 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1895 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1896};
1897
1898static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1899{
1900 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1901 struct net_device *dev = info->user_ptr[1];
1902 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1903 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1904 struct ieee802154_llsec_device_key key;
1905 __le64 extended_addr;
1906
1907 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
8cb08174 1908 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
a26c5fd7
AA		 1909 return -EINVAL;
1910
1911 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1912 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1913 return -EINVAL;
1914
1915 /* TODO change key.id ? */
1916 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1917 &key.key_id) < 0)
1918 return -ENOBUFS;
1919
1920 /* TODO be32 */
1921 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1922 /* TODO change naming hwaddr -> extended_addr
1923 * check unique identifier short+pan OR extended_addr
1924 */
1925 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1926 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1927}
1928
1929static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1930{
1931 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1932 struct net_device *dev = info->user_ptr[1];
1933 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1934 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1935 struct ieee802154_llsec_device_key key;
1936 __le64 extended_addr;
1937
8cb08174 1938 if (nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
a26c5fd7
AA		 1939 return -EINVAL;
1940
1941 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1942 return -EINVAL;
1943
1944 /* TODO change key.id ? */
1945 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1946 &key.key_id) < 0)
1947 return -ENOBUFS;
1948
1949 /* TODO change naming hwaddr -> extended_addr
1950 * check unique identifier short+pan OR extended_addr
1951 */
1952 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1953 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1954}
1955
1956static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1957 u32 seq, int flags,
1958 struct cfg802154_registered_device *rdev,
1959 struct net_device *dev,
1960 const struct ieee802154_llsec_seclevel *sl)
1961{
1962 void *hdr;
1963 struct nlattr *nl_seclevel;
1964
1965 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1966 if (!hdr)
1967 return -1;
1968
1969 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1970 goto nla_put_failure;
1971
ae0be8de 1972 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
a26c5fd7
AA		 1973 if (!nl_seclevel)
1974 goto nla_put_failure;
1975
1976 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1977 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1978 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1979 sl->device_override))
1980 goto nla_put_failure;
1981
1982 if (sl->frame_type == NL802154_FRAME_CMD) {
1983 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1984 sl->cmd_frame_id))
1985 goto nla_put_failure;
1986 }
1987
1988 nla_nest_end(msg, nl_seclevel);
1989 genlmsg_end(msg, hdr);
1990
1991 return 0;
1992
1993nla_put_failure:
1994 genlmsg_cancel(msg, hdr);
1995 return -EMSGSIZE;
1996}
1997
1998static int
1999nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2000{
2001 struct cfg802154_registered_device *rdev = NULL;
2002 struct ieee802154_llsec_seclevel *sl;
2003 struct ieee802154_llsec_table *table;
2004 struct wpan_dev *wpan_dev;
2005 int err;
2006
2007 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2008 if (err)
2009 return err;
2010
2011 if (!wpan_dev->netdev) {
2012 err = -EINVAL;
2013 goto out_err;
2014 }
2015
2016 rdev_lock_llsec_table(rdev, wpan_dev);
2017 rdev_get_llsec_table(rdev, wpan_dev, &table);
2018
2019 /* TODO make it like station dump */
2020 if (cb->args[2])
2021 goto out;
2022
2023 list_for_each_entry(sl, &table->security_levels, list) {
2024 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2025 NETLINK_CB(cb->skb).portid,
2026 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2027 rdev, wpan_dev->netdev, sl) < 0) {
2028 /* TODO */
2029 err = -EIO;
2030 rdev_unlock_llsec_table(rdev, wpan_dev);
2031 goto out_err;
2032 }
2033 }
2034
2035 cb->args[2] = 1;
2036
2037out:
2038 rdev_unlock_llsec_table(rdev, wpan_dev);
2039 err = skb->len;
2040out_err:
2041 nl802154_finish_wpan_dev_dump(rdev);
2042
2043 return err;
2044}
2045
2046static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2047 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2048 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2049 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2050 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2051};
2052
2053static int
2054llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2055{
2056 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2057
8cb08174 2058 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
a26c5fd7
AA		 2059 return -EINVAL;
2060
2061 memset(sl, 0, sizeof(*sl));
2062
2063 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2064 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2065 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2066 return -EINVAL;
2067
2068 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2069 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2070 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2071 if (sl->frame_type > NL802154_FRAME_MAX ||
2072 (sl->device_override != 0 && sl->device_override != 1))
2073 return -EINVAL;
2074
2075 if (sl->frame_type == NL802154_FRAME_CMD) {
2076 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2077 return -EINVAL;
2078
2079 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2080 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2081 return -EINVAL;
2082 }
2083
2084 return 0;
2085}
2086
2087static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2088 struct genl_info *info)
2089{
2090 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2091 struct net_device *dev = info->user_ptr[1];
2092 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2093 struct ieee802154_llsec_seclevel sl;
2094
2095 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2096 &sl) < 0)
2097 return -EINVAL;
2098
2099 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2100}
2101
2102static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2103 struct genl_info *info)
2104{
2105 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2106 struct net_device *dev = info->user_ptr[1];
2107 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2108 struct ieee802154_llsec_seclevel sl;
2109
2110 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2111 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2112 &sl) < 0)
2113 return -EINVAL;
2114
2115 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2116}
2117#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2118
2119#define NL802154_FLAG_NEED_WPAN_PHY 0x01
2120#define NL802154_FLAG_NEED_NETDEV 0x02
2121#define NL802154_FLAG_NEED_RTNL 0x04
2122#define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2123#define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2124 NL802154_FLAG_CHECK_NETDEV_UP)
2125#define NL802154_FLAG_NEED_WPAN_DEV 0x10
2126#define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2127 NL802154_FLAG_CHECK_NETDEV_UP)
2128
2129static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2130 struct genl_info *info)
2131{
2132 struct cfg802154_registered_device *rdev;
2133 struct wpan_dev *wpan_dev;
2134 struct net_device *dev;
2135 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2136
2137 if (rtnl)
2138 rtnl_lock();
2139
2140 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2141 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2142 if (IS_ERR(rdev)) {
2143 if (rtnl)
2144 rtnl_unlock();
2145 return PTR_ERR(rdev);
2146 }
2147 info->user_ptr[0] = rdev;
2148 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2149 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2150 ASSERT_RTNL();
2151 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2152 info->attrs);
2153 if (IS_ERR(wpan_dev)) {
2154 if (rtnl)
2155 rtnl_unlock();
2156 return PTR_ERR(wpan_dev);
2157 }
2158
2159 dev = wpan_dev->netdev;
2160 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2161
2162 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2163 if (!dev) {
2164 if (rtnl)
2165 rtnl_unlock();
2166 return -EINVAL;
2167 }
2168
2169 info->user_ptr[1] = dev;
2170 } else {
2171 info->user_ptr[1] = wpan_dev;
2172 }
2173
2174 if (dev) {
2175 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2176 !netif_running(dev)) {
2177 if (rtnl)
2178 rtnl_unlock();
2179 return -ENETDOWN;
2180 }
2181
2182 dev_hold(dev);
2183 }
2184
2185 info->user_ptr[0] = rdev;
2186 }
2187
2188 return 0;
2189}
2190
2191static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2192 struct genl_info *info)
2193{
2194 if (info->user_ptr[1]) {
2195 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2196 struct wpan_dev *wpan_dev = info->user_ptr[1];
2197
2198 if (wpan_dev->netdev)
2199 dev_put(wpan_dev->netdev);
2200 } else {
2201 dev_put(info->user_ptr[1]);
2202 }
2203 }
2204
2205 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2206 rtnl_unlock();
2207}
2208
2209static const struct genl_ops nl802154_ops[] = {
2210 {
2211 .cmd = NL802154_CMD_GET_WPAN_PHY,
ef6243ac 2212 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2213 .doit = nl802154_get_wpan_phy,
2214 .dumpit = nl802154_dump_wpan_phy,
2215 .done = nl802154_dump_wpan_phy_done,
a26c5fd7
AA		 2216 /* can be retrieved by unprivileged users */
2217 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2218 NL802154_FLAG_NEED_RTNL,
2219 },
2220 {
2221 .cmd = NL802154_CMD_GET_INTERFACE,
ef6243ac 2222 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2223 .doit = nl802154_get_interface,
2224 .dumpit = nl802154_dump_interface,
a26c5fd7
AA		 2225 /* can be retrieved by unprivileged users */
2226 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2227 NL802154_FLAG_NEED_RTNL,
2228 },
2229 {
2230 .cmd = NL802154_CMD_NEW_INTERFACE,
ef6243ac 2231 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2232 .doit = nl802154_new_interface,
a26c5fd7
AA		 2233 .flags = GENL_ADMIN_PERM,
2234 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
f3ea5e44
AA		 2235 NL802154_FLAG_NEED_RTNL,
2236 },
b821ecd4
AA		 2237 {
2238 .cmd = NL802154_CMD_DEL_INTERFACE,
ef6243ac 2239 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b821ecd4 2240 .doit = nl802154_del_interface,
b821ecd4
AA		 2241 .flags = GENL_ADMIN_PERM,
2242 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2243 NL802154_FLAG_NEED_RTNL,
2244 },
ab0bd561
AA		 2245 {
2246 .cmd = NL802154_CMD_SET_CHANNEL,
ef6243ac 2247 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ab0bd561 2248 .doit = nl802154_set_channel,
ab0bd561
AA		 2249 .flags = GENL_ADMIN_PERM,
2250 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2251 NL802154_FLAG_NEED_RTNL,
2252 },
ba2a9506
AA		 2253 {
2254 .cmd = NL802154_CMD_SET_CCA_MODE,
ef6243ac 2255 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ba2a9506 2256 .doit = nl802154_set_cca_mode,
ba2a9506
AA		 2257 .flags = GENL_ADMIN_PERM,
2258 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2259 NL802154_FLAG_NEED_RTNL,
2260 },
b69644c1
AA		 2261 {
2262 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
ef6243ac 2263 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b69644c1 2264 .doit = nl802154_set_cca_ed_level,
b69644c1
AA		 2265 .flags = GENL_ADMIN_PERM,
2266 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2267 NL802154_FLAG_NEED_RTNL,
2268 },
0f999b09
VB		 2269 {
2270 .cmd = NL802154_CMD_SET_TX_POWER,
ef6243ac 2271 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
0f999b09 2272 .doit = nl802154_set_tx_power,
0f999b09 2273 .flags = GENL_ADMIN_PERM,
66e5c267
AA		 2274 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2275 NL802154_FLAG_NEED_RTNL,
2276 },
2277 {
2278 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
ef6243ac 2279 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
66e5c267 2280 .doit = nl802154_wpan_phy_netns,
66e5c267 2281 .flags = GENL_ADMIN_PERM,
0f999b09
VB		 2282 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2283 NL802154_FLAG_NEED_RTNL,
2284 },
702bf371
AA		 2285 {
2286 .cmd = NL802154_CMD_SET_PAN_ID,
ef6243ac 2287 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
702bf371 2288 .doit = nl802154_set_pan_id,
702bf371
AA		 2289 .flags = GENL_ADMIN_PERM,
2290 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2291 NL802154_FLAG_NEED_RTNL,
2292 },
9830c62a
AA		 2293 {
2294 .cmd = NL802154_CMD_SET_SHORT_ADDR,
ef6243ac 2295 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
9830c62a 2296 .doit = nl802154_set_short_addr,
9830c62a
AA		 2297 .flags = GENL_ADMIN_PERM,
2298 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2299 NL802154_FLAG_NEED_RTNL,
2300 },
656a999e
AA		 2301 {
2302 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
ef6243ac 2303 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
656a999e 2304 .doit = nl802154_set_backoff_exponent,
656a999e
AA		 2305 .flags = GENL_ADMIN_PERM,
2306 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2307 NL802154_FLAG_NEED_RTNL,
2308 },
a01ba765
AA		 2309 {
2310 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
ef6243ac 2311 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a01ba765 2312 .doit = nl802154_set_max_csma_backoffs,
a01ba765
AA		 2313 .flags = GENL_ADMIN_PERM,
2314 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2315 NL802154_FLAG_NEED_RTNL,
2316 },
17a3a46b
AA		 2317 {
2318 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
ef6243ac 2319 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
17a3a46b 2320 .doit = nl802154_set_max_frame_retries,
17a3a46b
AA		 2321 .flags = GENL_ADMIN_PERM,
2322 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2323 NL802154_FLAG_NEED_RTNL,
2324 },
c8937a1d
AA		 2325 {
2326 .cmd = NL802154_CMD_SET_LBT_MODE,
ef6243ac 2327 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c8937a1d 2328 .doit = nl802154_set_lbt_mode,
c8937a1d
AA		 2329 .flags = GENL_ADMIN_PERM,
2330 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2331 NL802154_FLAG_NEED_RTNL,
2332 },
c91208d8
AA		 2333 {
2334 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
ef6243ac 2335 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c91208d8 2336 .doit = nl802154_set_ackreq_default,
c91208d8
AA		 2337 .flags = GENL_ADMIN_PERM,
2338 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2339 NL802154_FLAG_NEED_RTNL,
2340 },
a26c5fd7
AA		 2341#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2342 {
2343 .cmd = NL802154_CMD_SET_SEC_PARAMS,
ef6243ac 2344 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2345 .doit = nl802154_set_llsec_params,
a26c5fd7
AA		 2346 .flags = GENL_ADMIN_PERM,
2347 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2348 NL802154_FLAG_NEED_RTNL,
2349 },
2350 {
2351 .cmd = NL802154_CMD_GET_SEC_KEY,
ef6243ac 2352 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2353 /* TODO .doit by matching key id? */
2354 .dumpit = nl802154_dump_llsec_key,
a26c5fd7
AA		 2355 .flags = GENL_ADMIN_PERM,
2356 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2357 NL802154_FLAG_NEED_RTNL,
2358 },
2359 {
2360 .cmd = NL802154_CMD_NEW_SEC_KEY,
ef6243ac 2361 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2362 .doit = nl802154_add_llsec_key,
a26c5fd7
AA		 2363 .flags = GENL_ADMIN_PERM,
2364 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2365 NL802154_FLAG_NEED_RTNL,
2366 },
2367 {
2368 .cmd = NL802154_CMD_DEL_SEC_KEY,
ef6243ac 2369 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2370 .doit = nl802154_del_llsec_key,
a26c5fd7
AA		 2371 .flags = GENL_ADMIN_PERM,
2372 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2373 NL802154_FLAG_NEED_RTNL,
2374 },
2375 /* TODO unique identifier must short+pan OR extended_addr */
2376 {
2377 .cmd = NL802154_CMD_GET_SEC_DEV,
ef6243ac 2378 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2379 /* TODO .doit by matching extended_addr? */
2380 .dumpit = nl802154_dump_llsec_dev,
a26c5fd7
AA		 2381 .flags = GENL_ADMIN_PERM,
2382 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2383 NL802154_FLAG_NEED_RTNL,
2384 },
2385 {
2386 .cmd = NL802154_CMD_NEW_SEC_DEV,
ef6243ac 2387 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2388 .doit = nl802154_add_llsec_dev,
a26c5fd7
AA		 2389 .flags = GENL_ADMIN_PERM,
2390 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2391 NL802154_FLAG_NEED_RTNL,
2392 },
2393 {
2394 .cmd = NL802154_CMD_DEL_SEC_DEV,
ef6243ac 2395 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2396 .doit = nl802154_del_llsec_dev,
a26c5fd7
AA		 2397 .flags = GENL_ADMIN_PERM,
2398 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2399 NL802154_FLAG_NEED_RTNL,
2400 },
2401 /* TODO remove complete devkey, put it as nested? */
2402 {
2403 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
ef6243ac 2404 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2405 /* TODO doit by matching ??? */
2406 .dumpit = nl802154_dump_llsec_devkey,
a26c5fd7
AA		 2407 .flags = GENL_ADMIN_PERM,
2408 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2409 NL802154_FLAG_NEED_RTNL,
2410 },
2411 {
2412 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
ef6243ac 2413 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2414 .doit = nl802154_add_llsec_devkey,
a26c5fd7
AA		 2415 .flags = GENL_ADMIN_PERM,
2416 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2417 NL802154_FLAG_NEED_RTNL,
2418 },
2419 {
2420 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
ef6243ac 2421 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2422 .doit = nl802154_del_llsec_devkey,
a26c5fd7
AA		 2423 .flags = GENL_ADMIN_PERM,
2424 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2425 NL802154_FLAG_NEED_RTNL,
2426 },
2427 {
2428 .cmd = NL802154_CMD_GET_SEC_LEVEL,
ef6243ac 2429 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2430 /* TODO .doit by matching frame_type? */
2431 .dumpit = nl802154_dump_llsec_seclevel,
a26c5fd7
AA		 2432 .flags = GENL_ADMIN_PERM,
2433 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2434 NL802154_FLAG_NEED_RTNL,
2435 },
2436 {
2437 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
ef6243ac 2438 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2439 .doit = nl802154_add_llsec_seclevel,
a26c5fd7
AA		 2440 .flags = GENL_ADMIN_PERM,
2441 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2442 NL802154_FLAG_NEED_RTNL,
2443 },
2444 {
2445 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
ef6243ac 2446 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2447 /* TODO match frame_type only? */
2448 .doit = nl802154_del_llsec_seclevel,
a26c5fd7
AA		 2449 .flags = GENL_ADMIN_PERM,
2450 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2451 NL802154_FLAG_NEED_RTNL,
2452 },
2453#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
79fe1a2a
AA		 2454};
2455
56989f6d 2456static struct genl_family nl802154_fam __ro_after_init = {
489111e5
JB		 2457 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2458 .hdrsize = 0, /* no private header */
2459 .version = 1, /* no particular meaning now */
2460 .maxattr = NL802154_ATTR_MAX,
3b0f31f2 2461 .policy = nl802154_policy,
489111e5
JB		 2462 .netnsok = true,
2463 .pre_doit = nl802154_pre_doit,
2464 .post_doit = nl802154_post_doit,
2465 .module = THIS_MODULE,
2466 .ops = nl802154_ops,
2467 .n_ops = ARRAY_SIZE(nl802154_ops),
2468 .mcgrps = nl802154_mcgrps,
2469 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2470};
2471
79fe1a2a 2472/* initialisation/exit functions */
56989f6d 2473int __init nl802154_init(void)
79fe1a2a 2474{
489111e5 2475 return genl_register_family(&nl802154_fam);
79fe1a2a
AA		 2476}
2477
2478void nl802154_exit(void)
2479{
2480 genl_unregister_family(&nl802154_fam);
2481}
Ubuntu Eoan Linux kernel mirror