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Merge tag 'mtd/fixes-for-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git...
[mirror_ubuntu-eoan-kernel.git] / net / ieee802154 / nl802154.c
CommitLineData
1802d0be
TG		 1// SPDX-License-Identifier: GPL-2.0-only
2/*
79fe1a2a
AA		 3 *
4 * Authors:
5 * Alexander Aring <aar@pengutronix.de>
6 *
7 * Based on: net/wireless/nl80211.c
8 */
9
10#include <linux/rtnetlink.h>
11
12#include <net/cfg802154.h>
13#include <net/genetlink.h>
14#include <net/mac802154.h>
15#include <net/netlink.h>
16#include <net/nl802154.h>
17#include <net/sock.h>
18
19#include "nl802154.h"
ab0bd561 20#include "rdev-ops.h"
79fe1a2a
AA		 21#include "core.h"
22
79fe1a2a 23/* the netlink family */
489111e5 24static struct genl_family nl802154_fam;
79fe1a2a
AA		 25
26/* multicast groups */
27enum nl802154_multicast_groups {
28 NL802154_MCGRP_CONFIG,
29};
30
31static const struct genl_multicast_group nl802154_mcgrps[] = {
32 [NL802154_MCGRP_CONFIG] = { .name = "config", },
33};
34
35/* returns ERR_PTR values */
36static struct wpan_dev *
37__cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
38{
39 struct cfg802154_registered_device *rdev;
40 struct wpan_dev *result = NULL;
41 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
42 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
43 u64 wpan_dev_id;
44 int wpan_phy_idx = -1;
45 int ifidx = -1;
46
47 ASSERT_RTNL();
48
49 if (!have_ifidx && !have_wpan_dev_id)
50 return ERR_PTR(-EINVAL);
51
52 if (have_ifidx)
53 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
54 if (have_wpan_dev_id) {
55 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
56 wpan_phy_idx = wpan_dev_id >> 32;
57 }
58
59 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
60 struct wpan_dev *wpan_dev;
61
66e5c267
AA		 62 if (wpan_phy_net(&rdev->wpan_phy) != netns)
63 continue;
79fe1a2a
AA		 64
65 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
66 continue;
67
68 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
69 if (have_ifidx && wpan_dev->netdev &&
70 wpan_dev->netdev->ifindex == ifidx) {
71 result = wpan_dev;
72 break;
73 }
74 if (have_wpan_dev_id &&
75 wpan_dev->identifier == (u32)wpan_dev_id) {
76 result = wpan_dev;
77 break;
78 }
79 }
80
81 if (result)
82 break;
83 }
84
85 if (result)
86 return result;
87
88 return ERR_PTR(-ENODEV);
89}
90
91static struct cfg802154_registered_device *
92__cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
93{
94 struct cfg802154_registered_device *rdev = NULL, *tmp;
95 struct net_device *netdev;
96
97 ASSERT_RTNL();
98
99 if (!attrs[NL802154_ATTR_WPAN_PHY] &&
100 !attrs[NL802154_ATTR_IFINDEX] &&
101 !attrs[NL802154_ATTR_WPAN_DEV])
102 return ERR_PTR(-EINVAL);
103
104 if (attrs[NL802154_ATTR_WPAN_PHY])
105 rdev = cfg802154_rdev_by_wpan_phy_idx(
106 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
107
108 if (attrs[NL802154_ATTR_WPAN_DEV]) {
109 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
110 struct wpan_dev *wpan_dev;
111 bool found = false;
112
113 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
114 if (tmp) {
115 /* make sure wpan_dev exists */
116 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
117 if (wpan_dev->identifier != (u32)wpan_dev_id)
118 continue;
119 found = true;
120 break;
121 }
122
123 if (!found)
124 tmp = NULL;
125
126 if (rdev && tmp != rdev)
127 return ERR_PTR(-EINVAL);
128 rdev = tmp;
129 }
130 }
131
132 if (attrs[NL802154_ATTR_IFINDEX]) {
133 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
134
135 netdev = __dev_get_by_index(netns, ifindex);
136 if (netdev) {
137 if (netdev->ieee802154_ptr)
138 tmp = wpan_phy_to_rdev(
139 netdev->ieee802154_ptr->wpan_phy);
140 else
141 tmp = NULL;
142
143 /* not wireless device -- return error */
144 if (!tmp)
145 return ERR_PTR(-EINVAL);
146
147 /* mismatch -- return error */
148 if (rdev && tmp != rdev)
149 return ERR_PTR(-EINVAL);
150
151 rdev = tmp;
152 }
153 }
154
155 if (!rdev)
156 return ERR_PTR(-ENODEV);
157
66e5c267
AA		 158 if (netns != wpan_phy_net(&rdev->wpan_phy))
159 return ERR_PTR(-ENODEV);
79fe1a2a
AA		 160
161 return rdev;
162}
163
164/* This function returns a pointer to the driver
165 * that the genl_info item that is passed refers to.
166 *
167 * The result of this can be a PTR_ERR and hence must
168 * be checked with IS_ERR() for errors.
169 */
170static struct cfg802154_registered_device *
171cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
172{
173 return __cfg802154_rdev_from_attrs(netns, info->attrs);
174}
175
176/* policy for the attributes */
177static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
ca20ce20
AA		 178 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
179 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
180 .len = 20-1 },
181
182 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
4b96aea0
AA		 183 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
184 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
ca20ce20
AA		 185
186 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
187
188 [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
189 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
190
1a19cb68 191 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
ca20ce20 192
ba2a9506
AA		 193 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
194 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
e4390592 195 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
ca20ce20
AA		 196
197 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
4b96aea0
AA		 198
199 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
200 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
201 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
202
203 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
204 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
205 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
206
207 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
208
209 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
0e665457
AA		 210
211 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
133be026
VB		 212
213 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
c91208d8
AA		 214
215 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
a26c5fd7 216
66e5c267
AA		 217 [NL802154_ATTR_PID] = { .type = NLA_U32 },
218 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
a26c5fd7
AA		 219#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
220 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
221 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
222 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
223 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
224
225 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
226 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
227 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
228 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
229#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
79fe1a2a
AA		 230};
231
a26c5fd7
AA		 232#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
233static int
234nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
235 struct netlink_callback *cb,
236 struct cfg802154_registered_device **rdev,
237 struct wpan_dev **wpan_dev)
238{
239 int err;
240
241 rtnl_lock();
242
243 if (!cb->args[0]) {
8cb08174
JB		 244 err = nlmsg_parse_deprecated(cb->nlh,
245 GENL_HDRLEN + nl802154_fam.hdrsize,
246 genl_family_attrbuf(&nl802154_fam),
247 nl802154_fam.maxattr,
248 nl802154_policy, NULL);
a26c5fd7
AA		 249 if (err)
250 goto out_unlock;
251
252 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
c90c39da 253 genl_family_attrbuf(&nl802154_fam));
a26c5fd7
AA		 254 if (IS_ERR(*wpan_dev)) {
255 err = PTR_ERR(*wpan_dev);
256 goto out_unlock;
257 }
258 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
259 /* 0 is the first index - add 1 to parse only once */
260 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
261 cb->args[1] = (*wpan_dev)->identifier;
262 } else {
263 /* subtract the 1 again here */
264 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
265 struct wpan_dev *tmp;
266
267 if (!wpan_phy) {
268 err = -ENODEV;
269 goto out_unlock;
270 }
271 *rdev = wpan_phy_to_rdev(wpan_phy);
272 *wpan_dev = NULL;
273
274 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
275 if (tmp->identifier == cb->args[1]) {
276 *wpan_dev = tmp;
277 break;
278 }
279 }
280
281 if (!*wpan_dev) {
282 err = -ENODEV;
283 goto out_unlock;
284 }
285 }
286
287 return 0;
288 out_unlock:
289 rtnl_unlock();
290 return err;
291}
292
293static void
294nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
295{
296 rtnl_unlock();
297}
298#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
299
79fe1a2a
AA		 300/* message building helper */
301static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
302 int flags, u8 cmd)
303{
304 /* since there is no private header just add the generic one */
305 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
306}
307
0e665457
AA		 308static int
309nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
310{
ae0be8de 311 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr);
0e665457
AA		 312 int i;
313
314 if (!nl_flags)
315 return -ENOBUFS;
316
317 i = 0;
318 while (mask) {
319 if ((mask & 1) && nla_put_flag(msg, i))
320 return -ENOBUFS;
321
322 mask >>= 1;
323 i++;
324 }
325
326 nla_nest_end(msg, nl_flags);
327 return 0;
328}
329
ca20ce20
AA		 330static int
331nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
332 struct sk_buff *msg)
333{
334 struct nlattr *nl_page;
335 unsigned long page;
336
ae0be8de 337 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
ca20ce20
AA		 338 if (!nl_page)
339 return -ENOBUFS;
340
cb41c8dd 341 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
ca20ce20 342 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
72f655e4 343 rdev->wpan_phy.supported.channels[page]))
ca20ce20
AA		 344 return -ENOBUFS;
345 }
346 nla_nest_end(msg, nl_page);
347
348 return 0;
349}
350
0e665457
AA		 351static int
352nl802154_put_capabilities(struct sk_buff *msg,
353 struct cfg802154_registered_device *rdev)
354{
355 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
356 struct nlattr *nl_caps, *nl_channels;
357 int i;
358
ae0be8de 359 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS);
0e665457
AA		 360 if (!nl_caps)
361 return -ENOBUFS;
362
ae0be8de 363 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS);
0e665457
AA		 364 if (!nl_channels)
365 return -ENOBUFS;
366
367 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
368 if (caps->channels[i]) {
369 if (nl802154_put_flags(msg, i, caps->channels[i]))
370 return -ENOBUFS;
371 }
372 }
373
374 nla_nest_end(msg, nl_channels);
375
376 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
377 struct nlattr *nl_ed_lvls;
378
ae0be8de
MK		 379 nl_ed_lvls = nla_nest_start_noflag(msg,
380 NL802154_CAP_ATTR_CCA_ED_LEVELS);
0e665457
AA		 381 if (!nl_ed_lvls)
382 return -ENOBUFS;
383
384 for (i = 0; i < caps->cca_ed_levels_size; i++) {
385 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
386 return -ENOBUFS;
387 }
388
389 nla_nest_end(msg, nl_ed_lvls);
390 }
391
392 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
393 struct nlattr *nl_tx_pwrs;
394
ae0be8de
MK		 395 nl_tx_pwrs = nla_nest_start_noflag(msg,
396 NL802154_CAP_ATTR_TX_POWERS);
0e665457
AA		 397 if (!nl_tx_pwrs)
398 return -ENOBUFS;
399
400 for (i = 0; i < caps->tx_powers_size; i++) {
401 if (nla_put_s32(msg, i, caps->tx_powers[i]))
402 return -ENOBUFS;
403 }
404
405 nla_nest_end(msg, nl_tx_pwrs);
406 }
407
408 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
409 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
410 caps->cca_modes) ||
411 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
412 caps->cca_opts))
413 return -ENOBUFS;
414 }
415
416 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
417 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
418 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
419 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
420 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
421 caps->min_csma_backoffs) ||
422 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
423 caps->max_csma_backoffs) ||
424 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
425 caps->min_frame_retries) ||
426 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
427 caps->max_frame_retries) ||
428 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
429 caps->iftypes) ||
430 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
431 return -ENOBUFS;
432
433 nla_nest_end(msg, nl_caps);
434
435 return 0;
436}
437
ca20ce20
AA		 438static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
439 enum nl802154_commands cmd,
440 struct sk_buff *msg, u32 portid, u32 seq,
441 int flags)
442{
133be026 443 struct nlattr *nl_cmds;
ca20ce20 444 void *hdr;
133be026 445 int i;
ca20ce20
AA		 446
447 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
448 if (!hdr)
449 return -ENOBUFS;
450
451 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
452 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
453 wpan_phy_name(&rdev->wpan_phy)) ||
454 nla_put_u32(msg, NL802154_ATTR_GENERATION,
455 cfg802154_rdev_list_generation))
456 goto nla_put_failure;
457
458 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
459 goto finish;
460
461 /* DUMP PHY PIB */
462
463 /* current channel settings */
464 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
465 rdev->wpan_phy.current_page) ||
466 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
467 rdev->wpan_phy.current_channel))
468 goto nla_put_failure;
469
0e665457
AA		 470 /* TODO remove this behaviour, we still keep support it for a while
471 * so users can change the behaviour to the new one.
472 */
ca20ce20
AA		 473 if (nl802154_send_wpan_phy_channels(rdev, msg))
474 goto nla_put_failure;
475
476 /* cca mode */
edea8f7c
AA		 477 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
478 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
479 rdev->wpan_phy.cca.mode))
ba2a9506 480 goto nla_put_failure;
edea8f7c
AA		 481
482 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
483 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
484 rdev->wpan_phy.cca.opt))
485 goto nla_put_failure;
486 }
ba2a9506
AA		 487 }
488
edea8f7c
AA		 489 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
490 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
491 rdev->wpan_phy.transmit_power))
492 goto nla_put_failure;
493 }
ca20ce20 494
e4390592
AA		 495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
496 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
497 rdev->wpan_phy.cca_ed_level))
498 goto nla_put_failure;
499 }
500
0e665457
AA		 501 if (nl802154_put_capabilities(msg, rdev))
502 goto nla_put_failure;
503
ae0be8de 504 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
133be026
VB		 505 if (!nl_cmds)
506 goto nla_put_failure;
507
508 i = 0;
509#define CMD(op, n) \
510 do { \
511 if (rdev->ops->op) { \
512 i++; \
513 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
514 goto nla_put_failure; \
515 } \
516 } while (0)
517
518 CMD(add_virtual_intf, NEW_INTERFACE);
519 CMD(del_virtual_intf, DEL_INTERFACE);
520 CMD(set_channel, SET_CHANNEL);
521 CMD(set_pan_id, SET_PAN_ID);
522 CMD(set_short_addr, SET_SHORT_ADDR);
523 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
524 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
525 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
526 CMD(set_lbt_mode, SET_LBT_MODE);
c91208d8 527 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
133be026
VB		 528
529 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
530 CMD(set_tx_power, SET_TX_POWER);
531
532 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
533 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
534
535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
536 CMD(set_cca_mode, SET_CCA_MODE);
537
538#undef CMD
539 nla_nest_end(msg, nl_cmds);
540
ca20ce20 541finish:
053c095a
JB		 542 genlmsg_end(msg, hdr);
543 return 0;
ca20ce20
AA		 544
545nla_put_failure:
546 genlmsg_cancel(msg, hdr);
547 return -EMSGSIZE;
548}
549
550struct nl802154_dump_wpan_phy_state {
551 s64 filter_wpan_phy;
552 long start;
553
554};
555
556static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
557 struct netlink_callback *cb,
558 struct nl802154_dump_wpan_phy_state *state)
559{
c90c39da 560 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam);
8cb08174
JB		 561 int ret = nlmsg_parse_deprecated(cb->nlh,
562 GENL_HDRLEN + nl802154_fam.hdrsize,
563 tb, nl802154_fam.maxattr,
564 nl802154_policy, NULL);
ca20ce20
AA		 565
566 /* TODO check if we can handle error here,
567 * we have no backward compatibility
568 */
569 if (ret)
570 return 0;
571
572 if (tb[NL802154_ATTR_WPAN_PHY])
573 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
574 if (tb[NL802154_ATTR_WPAN_DEV])
575 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
576 if (tb[NL802154_ATTR_IFINDEX]) {
577 struct net_device *netdev;
578 struct cfg802154_registered_device *rdev;
579 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
580
ca20ce20
AA		 581 netdev = __dev_get_by_index(&init_net, ifidx);
582 if (!netdev)
583 return -ENODEV;
584 if (netdev->ieee802154_ptr) {
585 rdev = wpan_phy_to_rdev(
586 netdev->ieee802154_ptr->wpan_phy);
587 state->filter_wpan_phy = rdev->wpan_phy_idx;
588 }
589 }
590
591 return 0;
592}
593
594static int
595nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
596{
597 int idx = 0, ret;
598 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
599 struct cfg802154_registered_device *rdev;
600
601 rtnl_lock();
602 if (!state) {
603 state = kzalloc(sizeof(*state), GFP_KERNEL);
604 if (!state) {
605 rtnl_unlock();
606 return -ENOMEM;
607 }
608 state->filter_wpan_phy = -1;
609 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
610 if (ret) {
611 kfree(state);
612 rtnl_unlock();
613 return ret;
614 }
615 cb->args[0] = (long)state;
616 }
617
618 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 619 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
620 continue;
ca20ce20
AA		 621 if (++idx <= state->start)
622 continue;
623 if (state->filter_wpan_phy != -1 &&
624 state->filter_wpan_phy != rdev->wpan_phy_idx)
625 continue;
626 /* attempt to fit multiple wpan_phy data chunks into the skb */
627 ret = nl802154_send_wpan_phy(rdev,
628 NL802154_CMD_NEW_WPAN_PHY,
629 skb,
630 NETLINK_CB(cb->skb).portid,
631 cb->nlh->nlmsg_seq, NLM_F_MULTI);
632 if (ret < 0) {
633 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
634 !skb->len && cb->min_dump_alloc < 4096) {
635 cb->min_dump_alloc = 4096;
636 rtnl_unlock();
637 return 1;
638 }
639 idx--;
640 break;
641 }
642 break;
643 }
644 rtnl_unlock();
645
646 state->start = idx;
647
648 return skb->len;
649}
650
651static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
652{
653 kfree((void *)cb->args[0]);
654 return 0;
655}
656
657static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
658{
659 struct sk_buff *msg;
660 struct cfg802154_registered_device *rdev = info->user_ptr[0];
661
662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
663 if (!msg)
664 return -ENOMEM;
665
666 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
667 info->snd_portid, info->snd_seq, 0) < 0) {
668 nlmsg_free(msg);
669 return -ENOBUFS;
670 }
671
672 return genlmsg_reply(msg, info);
673}
674
4b96aea0
AA		 675static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
676{
677 return (u64)wpan_dev->identifier |
678 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
679}
680
a26c5fd7
AA		 681#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
682#include <net/ieee802154_netdev.h>
683
684static int
685ieee802154_llsec_send_key_id(struct sk_buff *msg,
686 const struct ieee802154_llsec_key_id *desc)
687{
688 struct nlattr *nl_dev_addr;
689
690 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
691 return -ENOBUFS;
692
693 switch (desc->mode) {
694 case NL802154_KEY_ID_MODE_IMPLICIT:
ae0be8de
MK		 695 nl_dev_addr = nla_nest_start_noflag(msg,
696 NL802154_KEY_ID_ATTR_IMPLICIT);
a26c5fd7
AA		 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,
e7479122
ND		 714 desc->device_addr.extended_addr,
715 NL802154_DEV_ADDR_ATTR_PAD))
a26c5fd7
AA		 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,
e7479122
ND		 735 desc->extended_source,
736 NL802154_KEY_ID_ATTR_PAD))
a26c5fd7
AA		 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
753static 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
ae0be8de 771 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
a26c5fd7
AA		 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
4b96aea0
AA		 785static int
786nl802154_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) ||
a558da09
ND		 805 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
806 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
4b96aea0
AA		 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,
e7479122
ND		 814 wpan_dev->extended_addr,
815 NL802154_ATTR_PAD) ||
4b96aea0
AA		 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
c91208d8
AA		 834 /* ackreq default behaviour */
835 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
836 goto nla_put_failure;
837
a26c5fd7
AA		 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
053c095a
JB		 843 genlmsg_end(msg, hdr);
844 return 0;
4b96aea0
AA		 845
846nla_put_failure:
847 genlmsg_cancel(msg, hdr);
848 return -EMSGSIZE;
849}
850
851static int
852nl802154_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) {
66e5c267
AA		 863 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
864 continue;
4b96aea0
AA		 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 }
886out:
887 rtnl_unlock();
888
889 cb->args[0] = wp_idx;
890 cb->args[1] = if_idx;
891
892 return skb->len;
893}
894
895static 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
f3ea5e44
AA		 914static 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;
0e57547e 918 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
f3ea5e44
AA		 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]);
65318680
AA		 929 if (type > NL802154_IFTYPE_MAX ||
930 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
f3ea5e44
AA		 931 return -EINVAL;
932 }
933
0e57547e 934 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
1ee06ef1 935 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
0e57547e 936
f3ea5e44
AA		 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]),
5b4a1039 942 NET_NAME_USER, type, extended_addr);
f3ea5e44
AA		 943}
944
b821ecd4
AA		 945static 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
ab0bd561
AA		 965static 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 */
673692fa 978 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
72f655e4 979 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
ab0bd561
AA		 980 return -EINVAL;
981
982 return rdev_set_channel(rdev, page, channel);
983}
984
ba2a9506
AA		 985static 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
fc4f8052 990 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
edea8f7c
AA		 991 return -EOPNOTSUPP;
992
ba2a9506
AA		 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 */
fea3318d
AA		 998 if (cca.mode < NL802154_CCA_ENERGY ||
999 cca.mode > NL802154_CCA_ATTR_MAX ||
1000 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
ba2a9506
AA		 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]);
fea3318d
AA		 1008 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1009 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
ba2a9506
AA		 1010 return -EINVAL;
1011 }
1012
1013 return rdev_set_cca_mode(rdev, &cca);
1014}
1015
b69644c1
AA		 1016static 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
0f999b09
VB		 1038static 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
702bf371
AA		 1060static 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;
ee7b9053 1065 __le16 pan_id;
702bf371
AA		 1066
1067 /* conflict here while tx/rx calls */
1068 if (netif_running(dev))
1069 return -EBUSY;
1070
9e3b71f3
AA		 1071 if (wpan_dev->lowpan_dev) {
1072 if (netif_running(wpan_dev->lowpan_dev))
1073 return -EBUSY;
1074 }
1075
702bf371 1076 /* don't change address fields on monitor */
0cf0879a
AA		 1077 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1078 !info->attrs[NL802154_ATTR_PAN_ID])
702bf371
AA		 1079 return -EINVAL;
1080
ee7b9053 1081 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
702bf371 1082
673692fa
AA		 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
702bf371
AA		 1093 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1094}
1095
9830c62a
AA		 1096static 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;
ee7b9053 1101 __le16 short_addr;
9830c62a
AA		 1102
1103 /* conflict here while tx/rx calls */
1104 if (netif_running(dev))
1105 return -EBUSY;
1106
9e3b71f3
AA		 1107 if (wpan_dev->lowpan_dev) {
1108 if (netif_running(wpan_dev->lowpan_dev))
1109 return -EBUSY;
1110 }
1111
9830c62a 1112 /* don't change address fields on monitor */
0cf0879a
AA		 1113 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1114 !info->attrs[NL802154_ATTR_SHORT_ADDR])
9830c62a
AA		 1115 return -EINVAL;
1116
ee7b9053 1117 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
9830c62a 1118
673692fa
AA		 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
9830c62a
AA		 1134 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1135}
1136
656a999e
AA		 1137static int
1138nl802154_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 */
fea3318d
AA		 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)
656a999e
AA		 1162 return -EINVAL;
1163
1164 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1165}
1166
a01ba765
AA		 1167static int
1168nl802154_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 */
fea3318d
AA		 1186 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1187 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
a01ba765
AA		 1188 return -EINVAL;
1189
1190 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1191}
1192
17a3a46b
AA		 1193static int
1194nl802154_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 */
fea3318d
AA		 1211 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1212 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
17a3a46b
AA		 1213 return -EINVAL;
1214
1215 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1216}
1217
c8937a1d
AA		 1218static 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;
4e1795de 1223 int mode;
c8937a1d
AA		 1224
1225 if (netif_running(dev))
1226 return -EBUSY;
1227
1228 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1229 return -EINVAL;
1230
4e1795de
SS		 1231 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1232
1233 if (mode != 0 && mode != 1)
1234 return -EINVAL;
1235
fea3318d
AA		 1236 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1237 return -EINVAL;
1238
c8937a1d
AA		 1239 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1240}
1241
c91208d8
AA		 1242static int
1243nl802154_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;
4e1795de 1248 int ackreq;
c91208d8
AA		 1249
1250 if (netif_running(dev))
1251 return -EBUSY;
1252
1253 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1254 return -EINVAL;
1255
4e1795de
SS		 1256 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1257
1258 if (ackreq != 0 && ackreq != 1)
1259 return -EINVAL;
1260
c91208d8
AA		 1261 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1262}
1263
66e5c267
AA		 1264static 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
a26c5fd7
AA		 1295#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1296static 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};
79fe1a2a 1302
a26c5fd7
AA		 1303static int
1304ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1305 struct ieee802154_addr *addr)
79fe1a2a 1306{
a26c5fd7 1307 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
79fe1a2a 1308
8cb08174 1309 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
a26c5fd7 1310 return -EINVAL;
79fe1a2a 1311
421eeea1
BD		 1312 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1313 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
a26c5fd7
AA		 1314 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1315 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1316 return -EINVAL;
79fe1a2a 1317
a26c5fd7
AA		 1318 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1319 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1320 switch (addr->mode) {
1321 case NL802154_DEV_ADDR_SHORT:
1322 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1323 break;
1324 case NL802154_DEV_ADDR_EXTENDED:
1325 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1326 break;
1327 default:
1328 return -EINVAL;
1329 }
79fe1a2a 1330
a26c5fd7
AA		 1331 return 0;
1332}
79fe1a2a 1333
a26c5fd7
AA		 1334static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1335 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1336 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1337 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1338 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1339 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1340};
79fe1a2a 1341
a26c5fd7
AA		 1342static int
1343ieee802154_llsec_parse_key_id(struct nlattr *nla,
1344 struct ieee802154_llsec_key_id *desc)
1345{
1346 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
79fe1a2a 1347
8cb08174 1348 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL))
a26c5fd7 1349 return -EINVAL;
79fe1a2a 1350
a26c5fd7
AA		 1351 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1352 return -EINVAL;
1353
1354 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1355 switch (desc->mode) {
1356 case NL802154_KEY_ID_MODE_IMPLICIT:
1357 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1358 return -EINVAL;
1359
1360 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1361 &desc->device_addr) < 0)
1362 return -EINVAL;
1363 break;
1364 case NL802154_KEY_ID_MODE_INDEX:
1365 break;
1366 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1367 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1368 return -EINVAL;
1369
1370 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1371 break;
1372 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1373 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1374 return -EINVAL;
1375
1376 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1377 break;
1378 default:
1379 return -EINVAL;
1380 }
1381
1382 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1383 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1384 return -EINVAL;
1385
1386 /* TODO change id to idx */
1387 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
79fe1a2a
AA		 1388 }
1389
1390 return 0;
1391}
1392
a26c5fd7
AA		 1393static int nl802154_set_llsec_params(struct sk_buff *skb,
1394 struct genl_info *info)
79fe1a2a 1395{
a26c5fd7
AA		 1396 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1397 struct net_device *dev = info->user_ptr[1];
1398 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1399 struct ieee802154_llsec_params params;
1400 u32 changed = 0;
1401 int ret;
79fe1a2a 1402
a26c5fd7
AA		 1403 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1404 u8 enabled;
1405
1406 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1407 if (enabled != 0 && enabled != 1)
1408 return -EINVAL;
1409
1410 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1411 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1412 }
1413
1414 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1415 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1416 &params.out_key);
1417 if (ret < 0)
1418 return ret;
1419
1420 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1421 }
1422
1423 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1424 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1425 if (params.out_level > NL802154_SECLEVEL_MAX)
1426 return -EINVAL;
1427
1428 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1429 }
1430
1431 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1432 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1433 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1434 }
1435
1436 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1437}
1438
1439static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1440 u32 seq, int flags,
1441 struct cfg802154_registered_device *rdev,
1442 struct net_device *dev,
1443 const struct ieee802154_llsec_key_entry *key)
1444{
1445 void *hdr;
1446 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1447 struct nlattr *nl_key, *nl_key_id;
1448
1449 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1450 if (!hdr)
1451 return -1;
1452
1453 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1454 goto nla_put_failure;
1455
ae0be8de 1456 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
a26c5fd7
AA		 1457 if (!nl_key)
1458 goto nla_put_failure;
1459
ae0be8de 1460 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
a26c5fd7
AA		 1461 if (!nl_key_id)
1462 goto nla_put_failure;
1463
1464 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1465 goto nla_put_failure;
1466
1467 nla_nest_end(msg, nl_key_id);
1468
1469 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1470 key->key->frame_types))
1471 goto nla_put_failure;
1472
1473 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1474 /* TODO for each nested */
1475 memset(commands, 0, sizeof(commands));
1476 commands[7] = key->key->cmd_frame_ids;
1477 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1478 sizeof(commands), commands))
1479 goto nla_put_failure;
1480 }
1481
1482 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1483 key->key->key))
1484 goto nla_put_failure;
1485
1486 nla_nest_end(msg, nl_key);
1487 genlmsg_end(msg, hdr);
1488
1489 return 0;
1490
1491nla_put_failure:
1492 genlmsg_cancel(msg, hdr);
1493 return -EMSGSIZE;
1494}
1495
1496static int
1497nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1498{
1499 struct cfg802154_registered_device *rdev = NULL;
1500 struct ieee802154_llsec_key_entry *key;
1501 struct ieee802154_llsec_table *table;
1502 struct wpan_dev *wpan_dev;
1503 int err;
1504
1505 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1506 if (err)
1507 return err;
1508
1509 if (!wpan_dev->netdev) {
1510 err = -EINVAL;
1511 goto out_err;
1512 }
1513
1514 rdev_lock_llsec_table(rdev, wpan_dev);
1515 rdev_get_llsec_table(rdev, wpan_dev, &table);
1516
1517 /* TODO make it like station dump */
1518 if (cb->args[2])
1519 goto out;
1520
1521 list_for_each_entry(key, &table->keys, list) {
1522 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1523 NETLINK_CB(cb->skb).portid,
1524 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1525 rdev, wpan_dev->netdev, key) < 0) {
1526 /* TODO */
1527 err = -EIO;
1528 rdev_unlock_llsec_table(rdev, wpan_dev);
1529 goto out_err;
79fe1a2a
AA		 1530 }
1531 }
1532
a26c5fd7
AA		 1533 cb->args[2] = 1;
1534
1535out:
1536 rdev_unlock_llsec_table(rdev, wpan_dev);
1537 err = skb->len;
1538out_err:
1539 nl802154_finish_wpan_dev_dump(rdev);
1540
1541 return err;
79fe1a2a
AA		 1542}
1543
a26c5fd7
AA		 1544static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1545 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1546 /* TODO handle it as for_each_nested and NLA_FLAG? */
1547 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1548 /* TODO handle it as for_each_nested, not static array? */
1549 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1550 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1551};
1552
1553static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1554{
1555 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1556 struct net_device *dev = info->user_ptr[1];
1557 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1558 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1559 struct ieee802154_llsec_key key = { };
1560 struct ieee802154_llsec_key_id id = { };
1561 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1562
8cb08174 1563 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1564 return -EINVAL;
1565
1566 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1567 !attrs[NL802154_KEY_ATTR_BYTES])
aa655562 1568 return -EINVAL;
a26c5fd7
AA		 1569
1570 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1571 return -ENOBUFS;
1572
1573 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1574 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1575 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1576 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1577 return -EINVAL;
1578
1579 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1580 /* TODO for each nested */
1581 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1582 NL802154_CMD_FRAME_NR_IDS / 8);
1583
1584 /* TODO understand the -EINVAL logic here? last condition */
1585 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1586 commands[4] || commands[5] || commands[6] ||
1587 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1588 return -EINVAL;
1589
1590 key.cmd_frame_ids = commands[7];
1591 } else {
1592 key.cmd_frame_ids = 0;
1593 }
1594
1595 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1596
1597 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1598 return -ENOBUFS;
1599
1600 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1601}
1602
1603static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1604{
1605 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1606 struct net_device *dev = info->user_ptr[1];
1607 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1608 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1609 struct ieee802154_llsec_key_id id;
1610
8cb08174 1611 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1612 return -EINVAL;
1613
1614 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1615 return -ENOBUFS;
1616
1617 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1618}
1619
1620static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1621 u32 seq, int flags,
1622 struct cfg802154_registered_device *rdev,
1623 struct net_device *dev,
1624 const struct ieee802154_llsec_device *dev_desc)
1625{
1626 void *hdr;
1627 struct nlattr *nl_device;
1628
1629 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1630 if (!hdr)
1631 return -1;
1632
1633 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1634 goto nla_put_failure;
1635
ae0be8de 1636 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
a26c5fd7
AA		 1637 if (!nl_device)
1638 goto nla_put_failure;
1639
1640 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1641 dev_desc->frame_counter) ||
1642 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1643 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1644 dev_desc->short_addr) ||
1645 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
e7479122 1646 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
a26c5fd7
AA		 1647 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1648 dev_desc->seclevel_exempt) ||
1649 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1650 goto nla_put_failure;
1651
1652 nla_nest_end(msg, nl_device);
1653 genlmsg_end(msg, hdr);
1654
1655 return 0;
1656
1657nla_put_failure:
1658 genlmsg_cancel(msg, hdr);
1659 return -EMSGSIZE;
1660}
1661
1662static int
1663nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1664{
1665 struct cfg802154_registered_device *rdev = NULL;
1666 struct ieee802154_llsec_device *dev;
1667 struct ieee802154_llsec_table *table;
1668 struct wpan_dev *wpan_dev;
1669 int err;
1670
1671 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1672 if (err)
1673 return err;
1674
1675 if (!wpan_dev->netdev) {
1676 err = -EINVAL;
1677 goto out_err;
1678 }
1679
1680 rdev_lock_llsec_table(rdev, wpan_dev);
1681 rdev_get_llsec_table(rdev, wpan_dev, &table);
1682
1683 /* TODO make it like station dump */
1684 if (cb->args[2])
1685 goto out;
1686
1687 list_for_each_entry(dev, &table->devices, list) {
1688 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1689 NETLINK_CB(cb->skb).portid,
1690 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1691 rdev, wpan_dev->netdev, dev) < 0) {
1692 /* TODO */
1693 err = -EIO;
1694 rdev_unlock_llsec_table(rdev, wpan_dev);
1695 goto out_err;
1696 }
1697 }
1698
1699 cb->args[2] = 1;
1700
1701out:
1702 rdev_unlock_llsec_table(rdev, wpan_dev);
1703 err = skb->len;
1704out_err:
1705 nl802154_finish_wpan_dev_dump(rdev);
1706
1707 return err;
1708}
1709
1710static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1711 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1712 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1713 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1714 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1715 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1716 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1717};
1718
1719static int
1720ieee802154_llsec_parse_device(struct nlattr *nla,
1721 struct ieee802154_llsec_device *dev)
1722{
1723 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1724
8cb08174 1725 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
a26c5fd7
AA		 1726 return -EINVAL;
1727
1728 memset(dev, 0, sizeof(*dev));
1729
1730 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1731 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1732 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1733 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1734 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1735 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1736 return -EINVAL;
1737
1738 /* TODO be32 */
1739 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1740 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1741 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1742 /* TODO rename hwaddr to extended_addr */
1743 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1744 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1745 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1746
1747 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1748 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1749 return -EINVAL;
1750
1751 return 0;
1752}
1753
1754static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1755{
1756 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1757 struct net_device *dev = info->user_ptr[1];
1758 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1759 struct ieee802154_llsec_device dev_desc;
1760
1761 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1762 &dev_desc) < 0)
1763 return -EINVAL;
1764
1765 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1766}
1767
1768static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1769{
1770 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1771 struct net_device *dev = info->user_ptr[1];
1772 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1773 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1774 __le64 extended_addr;
1775
8cb08174 1776 if (nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
a26c5fd7
AA		 1777 return -EINVAL;
1778
1779 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1780 return -EINVAL;
1781
1782 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1783 return rdev_del_device(rdev, wpan_dev, extended_addr);
1784}
1785
1786static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1787 u32 seq, int flags,
1788 struct cfg802154_registered_device *rdev,
1789 struct net_device *dev, __le64 extended_addr,
1790 const struct ieee802154_llsec_device_key *devkey)
1791{
1792 void *hdr;
1793 struct nlattr *nl_devkey, *nl_key_id;
1794
1795 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1796 if (!hdr)
1797 return -1;
1798
1799 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1800 goto nla_put_failure;
1801
ae0be8de 1802 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
a26c5fd7
AA		 1803 if (!nl_devkey)
1804 goto nla_put_failure;
1805
1806 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
e7479122 1807 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
a26c5fd7
AA		 1808 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1809 devkey->frame_counter))
1810 goto nla_put_failure;
1811
ae0be8de 1812 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
a26c5fd7
AA		 1813 if (!nl_key_id)
1814 goto nla_put_failure;
1815
1816 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1817 goto nla_put_failure;
1818
1819 nla_nest_end(msg, nl_key_id);
1820 nla_nest_end(msg, nl_devkey);
1821 genlmsg_end(msg, hdr);
1822
1823 return 0;
1824
1825nla_put_failure:
1826 genlmsg_cancel(msg, hdr);
1827 return -EMSGSIZE;
1828}
1829
1830static int
1831nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1832{
1833 struct cfg802154_registered_device *rdev = NULL;
1834 struct ieee802154_llsec_device_key *kpos;
1835 struct ieee802154_llsec_device *dpos;
1836 struct ieee802154_llsec_table *table;
1837 struct wpan_dev *wpan_dev;
1838 int err;
1839
1840 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1841 if (err)
1842 return err;
1843
1844 if (!wpan_dev->netdev) {
1845 err = -EINVAL;
1846 goto out_err;
1847 }
1848
1849 rdev_lock_llsec_table(rdev, wpan_dev);
1850 rdev_get_llsec_table(rdev, wpan_dev, &table);
1851
1852 /* TODO make it like station dump */
1853 if (cb->args[2])
1854 goto out;
1855
1856 /* TODO look if remove devkey and do some nested attribute */
1857 list_for_each_entry(dpos, &table->devices, list) {
1858 list_for_each_entry(kpos, &dpos->keys, list) {
1859 if (nl802154_send_devkey(skb,
1860 NL802154_CMD_NEW_SEC_LEVEL,
1861 NETLINK_CB(cb->skb).portid,
1862 cb->nlh->nlmsg_seq,
1863 NLM_F_MULTI, rdev,
1864 wpan_dev->netdev,
1865 dpos->hwaddr,
1866 kpos) < 0) {
1867 /* TODO */
1868 err = -EIO;
1869 rdev_unlock_llsec_table(rdev, wpan_dev);
1870 goto out_err;
1871 }
1872 }
1873 }
1874
1875 cb->args[2] = 1;
1876
1877out:
1878 rdev_unlock_llsec_table(rdev, wpan_dev);
1879 err = skb->len;
1880out_err:
1881 nl802154_finish_wpan_dev_dump(rdev);
1882
1883 return err;
1884}
1885
1886static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1887 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1888 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1889 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1890};
1891
1892static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1893{
1894 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1895 struct net_device *dev = info->user_ptr[1];
1896 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1897 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1898 struct ieee802154_llsec_device_key key;
1899 __le64 extended_addr;
1900
1901 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
8cb08174 1902 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
a26c5fd7
AA		 1903 return -EINVAL;
1904
1905 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1906 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1907 return -EINVAL;
1908
1909 /* TODO change key.id ? */
1910 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1911 &key.key_id) < 0)
1912 return -ENOBUFS;
1913
1914 /* TODO be32 */
1915 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1916 /* TODO change naming hwaddr -> extended_addr
1917 * check unique identifier short+pan OR extended_addr
1918 */
1919 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1920 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1921}
1922
1923static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1924{
1925 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1926 struct net_device *dev = info->user_ptr[1];
1927 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1928 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1929 struct ieee802154_llsec_device_key key;
1930 __le64 extended_addr;
1931
8cb08174 1932 if (nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
a26c5fd7
AA		 1933 return -EINVAL;
1934
1935 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1936 return -EINVAL;
1937
1938 /* TODO change key.id ? */
1939 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1940 &key.key_id) < 0)
1941 return -ENOBUFS;
1942
1943 /* TODO change naming hwaddr -> extended_addr
1944 * check unique identifier short+pan OR extended_addr
1945 */
1946 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1947 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1948}
1949
1950static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1951 u32 seq, int flags,
1952 struct cfg802154_registered_device *rdev,
1953 struct net_device *dev,
1954 const struct ieee802154_llsec_seclevel *sl)
1955{
1956 void *hdr;
1957 struct nlattr *nl_seclevel;
1958
1959 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1960 if (!hdr)
1961 return -1;
1962
1963 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1964 goto nla_put_failure;
1965
ae0be8de 1966 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
a26c5fd7
AA		 1967 if (!nl_seclevel)
1968 goto nla_put_failure;
1969
1970 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1971 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1972 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1973 sl->device_override))
1974 goto nla_put_failure;
1975
1976 if (sl->frame_type == NL802154_FRAME_CMD) {
1977 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1978 sl->cmd_frame_id))
1979 goto nla_put_failure;
1980 }
1981
1982 nla_nest_end(msg, nl_seclevel);
1983 genlmsg_end(msg, hdr);
1984
1985 return 0;
1986
1987nla_put_failure:
1988 genlmsg_cancel(msg, hdr);
1989 return -EMSGSIZE;
1990}
1991
1992static int
1993nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
1994{
1995 struct cfg802154_registered_device *rdev = NULL;
1996 struct ieee802154_llsec_seclevel *sl;
1997 struct ieee802154_llsec_table *table;
1998 struct wpan_dev *wpan_dev;
1999 int err;
2000
2001 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2002 if (err)
2003 return err;
2004
2005 if (!wpan_dev->netdev) {
2006 err = -EINVAL;
2007 goto out_err;
2008 }
2009
2010 rdev_lock_llsec_table(rdev, wpan_dev);
2011 rdev_get_llsec_table(rdev, wpan_dev, &table);
2012
2013 /* TODO make it like station dump */
2014 if (cb->args[2])
2015 goto out;
2016
2017 list_for_each_entry(sl, &table->security_levels, list) {
2018 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2019 NETLINK_CB(cb->skb).portid,
2020 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2021 rdev, wpan_dev->netdev, sl) < 0) {
2022 /* TODO */
2023 err = -EIO;
2024 rdev_unlock_llsec_table(rdev, wpan_dev);
2025 goto out_err;
2026 }
2027 }
2028
2029 cb->args[2] = 1;
2030
2031out:
2032 rdev_unlock_llsec_table(rdev, wpan_dev);
2033 err = skb->len;
2034out_err:
2035 nl802154_finish_wpan_dev_dump(rdev);
2036
2037 return err;
2038}
2039
2040static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2041 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2042 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2043 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2044 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2045};
2046
2047static int
2048llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2049{
2050 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2051
8cb08174 2052 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
a26c5fd7
AA		 2053 return -EINVAL;
2054
2055 memset(sl, 0, sizeof(*sl));
2056
2057 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2058 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2059 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2060 return -EINVAL;
2061
2062 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2063 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2064 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2065 if (sl->frame_type > NL802154_FRAME_MAX ||
2066 (sl->device_override != 0 && sl->device_override != 1))
2067 return -EINVAL;
2068
2069 if (sl->frame_type == NL802154_FRAME_CMD) {
2070 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2071 return -EINVAL;
2072
2073 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2074 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2075 return -EINVAL;
2076 }
2077
2078 return 0;
2079}
2080
2081static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2082 struct genl_info *info)
2083{
2084 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2085 struct net_device *dev = info->user_ptr[1];
2086 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2087 struct ieee802154_llsec_seclevel sl;
2088
2089 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2090 &sl) < 0)
2091 return -EINVAL;
2092
2093 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2094}
2095
2096static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2097 struct genl_info *info)
2098{
2099 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2100 struct net_device *dev = info->user_ptr[1];
2101 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2102 struct ieee802154_llsec_seclevel sl;
2103
2104 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2105 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2106 &sl) < 0)
2107 return -EINVAL;
2108
2109 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2110}
2111#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2112
2113#define NL802154_FLAG_NEED_WPAN_PHY 0x01
2114#define NL802154_FLAG_NEED_NETDEV 0x02
2115#define NL802154_FLAG_NEED_RTNL 0x04
2116#define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2117#define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2118 NL802154_FLAG_CHECK_NETDEV_UP)
2119#define NL802154_FLAG_NEED_WPAN_DEV 0x10
2120#define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2121 NL802154_FLAG_CHECK_NETDEV_UP)
2122
2123static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2124 struct genl_info *info)
2125{
2126 struct cfg802154_registered_device *rdev;
2127 struct wpan_dev *wpan_dev;
2128 struct net_device *dev;
2129 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2130
2131 if (rtnl)
2132 rtnl_lock();
2133
2134 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2135 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2136 if (IS_ERR(rdev)) {
2137 if (rtnl)
2138 rtnl_unlock();
2139 return PTR_ERR(rdev);
2140 }
2141 info->user_ptr[0] = rdev;
2142 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2143 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2144 ASSERT_RTNL();
2145 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2146 info->attrs);
2147 if (IS_ERR(wpan_dev)) {
2148 if (rtnl)
2149 rtnl_unlock();
2150 return PTR_ERR(wpan_dev);
2151 }
2152
2153 dev = wpan_dev->netdev;
2154 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2155
2156 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2157 if (!dev) {
2158 if (rtnl)
2159 rtnl_unlock();
2160 return -EINVAL;
2161 }
2162
2163 info->user_ptr[1] = dev;
2164 } else {
2165 info->user_ptr[1] = wpan_dev;
2166 }
2167
2168 if (dev) {
2169 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2170 !netif_running(dev)) {
2171 if (rtnl)
2172 rtnl_unlock();
2173 return -ENETDOWN;
2174 }
2175
2176 dev_hold(dev);
2177 }
2178
2179 info->user_ptr[0] = rdev;
2180 }
2181
2182 return 0;
2183}
2184
2185static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2186 struct genl_info *info)
2187{
2188 if (info->user_ptr[1]) {
2189 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2190 struct wpan_dev *wpan_dev = info->user_ptr[1];
2191
2192 if (wpan_dev->netdev)
2193 dev_put(wpan_dev->netdev);
2194 } else {
2195 dev_put(info->user_ptr[1]);
2196 }
2197 }
2198
2199 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2200 rtnl_unlock();
2201}
2202
2203static const struct genl_ops nl802154_ops[] = {
2204 {
2205 .cmd = NL802154_CMD_GET_WPAN_PHY,
ef6243ac 2206 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2207 .doit = nl802154_get_wpan_phy,
2208 .dumpit = nl802154_dump_wpan_phy,
2209 .done = nl802154_dump_wpan_phy_done,
a26c5fd7
AA		 2210 /* can be retrieved by unprivileged users */
2211 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2212 NL802154_FLAG_NEED_RTNL,
2213 },
2214 {
2215 .cmd = NL802154_CMD_GET_INTERFACE,
ef6243ac 2216 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2217 .doit = nl802154_get_interface,
2218 .dumpit = nl802154_dump_interface,
a26c5fd7
AA		 2219 /* can be retrieved by unprivileged users */
2220 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2221 NL802154_FLAG_NEED_RTNL,
2222 },
2223 {
2224 .cmd = NL802154_CMD_NEW_INTERFACE,
ef6243ac 2225 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2226 .doit = nl802154_new_interface,
a26c5fd7
AA		 2227 .flags = GENL_ADMIN_PERM,
2228 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
f3ea5e44
AA		 2229 NL802154_FLAG_NEED_RTNL,
2230 },
b821ecd4
AA		 2231 {
2232 .cmd = NL802154_CMD_DEL_INTERFACE,
ef6243ac 2233 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b821ecd4 2234 .doit = nl802154_del_interface,
b821ecd4
AA		 2235 .flags = GENL_ADMIN_PERM,
2236 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2237 NL802154_FLAG_NEED_RTNL,
2238 },
ab0bd561
AA		 2239 {
2240 .cmd = NL802154_CMD_SET_CHANNEL,
ef6243ac 2241 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ab0bd561 2242 .doit = nl802154_set_channel,
ab0bd561
AA		 2243 .flags = GENL_ADMIN_PERM,
2244 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2245 NL802154_FLAG_NEED_RTNL,
2246 },
ba2a9506
AA		 2247 {
2248 .cmd = NL802154_CMD_SET_CCA_MODE,
ef6243ac 2249 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ba2a9506 2250 .doit = nl802154_set_cca_mode,
ba2a9506
AA		 2251 .flags = GENL_ADMIN_PERM,
2252 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2253 NL802154_FLAG_NEED_RTNL,
2254 },
b69644c1
AA		 2255 {
2256 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
ef6243ac 2257 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b69644c1 2258 .doit = nl802154_set_cca_ed_level,
b69644c1
AA		 2259 .flags = GENL_ADMIN_PERM,
2260 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2261 NL802154_FLAG_NEED_RTNL,
2262 },
0f999b09
VB		 2263 {
2264 .cmd = NL802154_CMD_SET_TX_POWER,
ef6243ac 2265 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
0f999b09 2266 .doit = nl802154_set_tx_power,
0f999b09 2267 .flags = GENL_ADMIN_PERM,
66e5c267
AA		 2268 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2269 NL802154_FLAG_NEED_RTNL,
2270 },
2271 {
2272 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
ef6243ac 2273 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
66e5c267 2274 .doit = nl802154_wpan_phy_netns,
66e5c267 2275 .flags = GENL_ADMIN_PERM,
0f999b09
VB		 2276 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2277 NL802154_FLAG_NEED_RTNL,
2278 },
702bf371
AA		 2279 {
2280 .cmd = NL802154_CMD_SET_PAN_ID,
ef6243ac 2281 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
702bf371 2282 .doit = nl802154_set_pan_id,
702bf371
AA		 2283 .flags = GENL_ADMIN_PERM,
2284 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2285 NL802154_FLAG_NEED_RTNL,
2286 },
9830c62a
AA		 2287 {
2288 .cmd = NL802154_CMD_SET_SHORT_ADDR,
ef6243ac 2289 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
9830c62a 2290 .doit = nl802154_set_short_addr,
9830c62a
AA		 2291 .flags = GENL_ADMIN_PERM,
2292 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2293 NL802154_FLAG_NEED_RTNL,
2294 },
656a999e
AA		 2295 {
2296 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
ef6243ac 2297 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
656a999e 2298 .doit = nl802154_set_backoff_exponent,
656a999e
AA		 2299 .flags = GENL_ADMIN_PERM,
2300 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2301 NL802154_FLAG_NEED_RTNL,
2302 },
a01ba765
AA		 2303 {
2304 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
ef6243ac 2305 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a01ba765 2306 .doit = nl802154_set_max_csma_backoffs,
a01ba765
AA		 2307 .flags = GENL_ADMIN_PERM,
2308 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2309 NL802154_FLAG_NEED_RTNL,
2310 },
17a3a46b
AA		 2311 {
2312 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
ef6243ac 2313 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
17a3a46b 2314 .doit = nl802154_set_max_frame_retries,
17a3a46b
AA		 2315 .flags = GENL_ADMIN_PERM,
2316 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2317 NL802154_FLAG_NEED_RTNL,
2318 },
c8937a1d
AA		 2319 {
2320 .cmd = NL802154_CMD_SET_LBT_MODE,
ef6243ac 2321 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c8937a1d 2322 .doit = nl802154_set_lbt_mode,
c8937a1d
AA		 2323 .flags = GENL_ADMIN_PERM,
2324 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2325 NL802154_FLAG_NEED_RTNL,
2326 },
c91208d8
AA		 2327 {
2328 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
ef6243ac 2329 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c91208d8 2330 .doit = nl802154_set_ackreq_default,
c91208d8
AA		 2331 .flags = GENL_ADMIN_PERM,
2332 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2333 NL802154_FLAG_NEED_RTNL,
2334 },
a26c5fd7
AA		 2335#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2336 {
2337 .cmd = NL802154_CMD_SET_SEC_PARAMS,
ef6243ac 2338 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2339 .doit = nl802154_set_llsec_params,
a26c5fd7
AA		 2340 .flags = GENL_ADMIN_PERM,
2341 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2342 NL802154_FLAG_NEED_RTNL,
2343 },
2344 {
2345 .cmd = NL802154_CMD_GET_SEC_KEY,
ef6243ac 2346 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2347 /* TODO .doit by matching key id? */
2348 .dumpit = nl802154_dump_llsec_key,
a26c5fd7
AA		 2349 .flags = GENL_ADMIN_PERM,
2350 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2351 NL802154_FLAG_NEED_RTNL,
2352 },
2353 {
2354 .cmd = NL802154_CMD_NEW_SEC_KEY,
ef6243ac 2355 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2356 .doit = nl802154_add_llsec_key,
a26c5fd7
AA		 2357 .flags = GENL_ADMIN_PERM,
2358 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2359 NL802154_FLAG_NEED_RTNL,
2360 },
2361 {
2362 .cmd = NL802154_CMD_DEL_SEC_KEY,
ef6243ac 2363 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2364 .doit = nl802154_del_llsec_key,
a26c5fd7
AA		 2365 .flags = GENL_ADMIN_PERM,
2366 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2367 NL802154_FLAG_NEED_RTNL,
2368 },
2369 /* TODO unique identifier must short+pan OR extended_addr */
2370 {
2371 .cmd = NL802154_CMD_GET_SEC_DEV,
ef6243ac 2372 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2373 /* TODO .doit by matching extended_addr? */
2374 .dumpit = nl802154_dump_llsec_dev,
a26c5fd7
AA		 2375 .flags = GENL_ADMIN_PERM,
2376 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2377 NL802154_FLAG_NEED_RTNL,
2378 },
2379 {
2380 .cmd = NL802154_CMD_NEW_SEC_DEV,
ef6243ac 2381 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2382 .doit = nl802154_add_llsec_dev,
a26c5fd7
AA		 2383 .flags = GENL_ADMIN_PERM,
2384 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2385 NL802154_FLAG_NEED_RTNL,
2386 },
2387 {
2388 .cmd = NL802154_CMD_DEL_SEC_DEV,
ef6243ac 2389 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2390 .doit = nl802154_del_llsec_dev,
a26c5fd7
AA		 2391 .flags = GENL_ADMIN_PERM,
2392 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2393 NL802154_FLAG_NEED_RTNL,
2394 },
2395 /* TODO remove complete devkey, put it as nested? */
2396 {
2397 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
ef6243ac 2398 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2399 /* TODO doit by matching ??? */
2400 .dumpit = nl802154_dump_llsec_devkey,
a26c5fd7
AA		 2401 .flags = GENL_ADMIN_PERM,
2402 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2403 NL802154_FLAG_NEED_RTNL,
2404 },
2405 {
2406 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
ef6243ac 2407 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2408 .doit = nl802154_add_llsec_devkey,
a26c5fd7
AA		 2409 .flags = GENL_ADMIN_PERM,
2410 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2411 NL802154_FLAG_NEED_RTNL,
2412 },
2413 {
2414 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
ef6243ac 2415 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2416 .doit = nl802154_del_llsec_devkey,
a26c5fd7
AA		 2417 .flags = GENL_ADMIN_PERM,
2418 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2419 NL802154_FLAG_NEED_RTNL,
2420 },
2421 {
2422 .cmd = NL802154_CMD_GET_SEC_LEVEL,
ef6243ac 2423 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2424 /* TODO .doit by matching frame_type? */
2425 .dumpit = nl802154_dump_llsec_seclevel,
a26c5fd7
AA		 2426 .flags = GENL_ADMIN_PERM,
2427 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2428 NL802154_FLAG_NEED_RTNL,
2429 },
2430 {
2431 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
ef6243ac 2432 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2433 .doit = nl802154_add_llsec_seclevel,
a26c5fd7
AA		 2434 .flags = GENL_ADMIN_PERM,
2435 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2436 NL802154_FLAG_NEED_RTNL,
2437 },
2438 {
2439 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
ef6243ac 2440 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2441 /* TODO match frame_type only? */
2442 .doit = nl802154_del_llsec_seclevel,
a26c5fd7
AA		 2443 .flags = GENL_ADMIN_PERM,
2444 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2445 NL802154_FLAG_NEED_RTNL,
2446 },
2447#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
79fe1a2a
AA		 2448};
2449
56989f6d 2450static struct genl_family nl802154_fam __ro_after_init = {
489111e5
JB		 2451 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2452 .hdrsize = 0, /* no private header */
2453 .version = 1, /* no particular meaning now */
2454 .maxattr = NL802154_ATTR_MAX,
3b0f31f2 2455 .policy = nl802154_policy,
489111e5
JB		 2456 .netnsok = true,
2457 .pre_doit = nl802154_pre_doit,
2458 .post_doit = nl802154_post_doit,
2459 .module = THIS_MODULE,
2460 .ops = nl802154_ops,
2461 .n_ops = ARRAY_SIZE(nl802154_ops),
2462 .mcgrps = nl802154_mcgrps,
2463 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2464};
2465
79fe1a2a 2466/* initialisation/exit functions */
56989f6d 2467int __init nl802154_init(void)
79fe1a2a 2468{
489111e5 2469 return genl_register_family(&nl802154_fam);
79fe1a2a
AA		 2470}
2471
2472void nl802154_exit(void)
2473{
2474 genl_unregister_family(&nl802154_fam);
2475}
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