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UBUNTU: Ubuntu-5.4.0-117.132
[mirror_ubuntu-focal-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 838#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
7bb7ab81
AA		 839 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
840 goto out;
841
a26c5fd7
AA		 842 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
843 goto nla_put_failure;
7bb7ab81
AA		 844
845out:
a26c5fd7
AA		 846#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
847
053c095a
JB		 848 genlmsg_end(msg, hdr);
849 return 0;
4b96aea0
AA		 850
851nla_put_failure:
852 genlmsg_cancel(msg, hdr);
853 return -EMSGSIZE;
854}
855
856static int
857nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
858{
859 int wp_idx = 0;
860 int if_idx = 0;
861 int wp_start = cb->args[0];
862 int if_start = cb->args[1];
863 struct cfg802154_registered_device *rdev;
864 struct wpan_dev *wpan_dev;
865
866 rtnl_lock();
867 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 868 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
869 continue;
4b96aea0
AA		 870 if (wp_idx < wp_start) {
871 wp_idx++;
872 continue;
873 }
874 if_idx = 0;
875
876 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
877 if (if_idx < if_start) {
878 if_idx++;
879 continue;
880 }
881 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
882 cb->nlh->nlmsg_seq, NLM_F_MULTI,
883 rdev, wpan_dev) < 0) {
884 goto out;
885 }
886 if_idx++;
887 }
888
889 wp_idx++;
890 }
891out:
892 rtnl_unlock();
893
894 cb->args[0] = wp_idx;
895 cb->args[1] = if_idx;
896
897 return skb->len;
898}
899
900static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
901{
902 struct sk_buff *msg;
903 struct cfg802154_registered_device *rdev = info->user_ptr[0];
904 struct wpan_dev *wdev = info->user_ptr[1];
905
906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
907 if (!msg)
908 return -ENOMEM;
909
910 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
911 rdev, wdev) < 0) {
912 nlmsg_free(msg);
913 return -ENOBUFS;
914 }
915
916 return genlmsg_reply(msg, info);
917}
918
f3ea5e44
AA		 919static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
920{
921 struct cfg802154_registered_device *rdev = info->user_ptr[0];
922 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
0e57547e 923 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
f3ea5e44
AA		 924
925 /* TODO avoid failing a new interface
926 * creation due to pending removal?
927 */
928
929 if (!info->attrs[NL802154_ATTR_IFNAME])
930 return -EINVAL;
931
932 if (info->attrs[NL802154_ATTR_IFTYPE]) {
933 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
65318680
AA		 934 if (type > NL802154_IFTYPE_MAX ||
935 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
f3ea5e44
AA		 936 return -EINVAL;
937 }
938
0e57547e 939 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
1ee06ef1 940 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
0e57547e 941
f3ea5e44
AA		 942 if (!rdev->ops->add_virtual_intf)
943 return -EOPNOTSUPP;
944
945 return rdev_add_virtual_intf(rdev,
946 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
5b4a1039 947 NET_NAME_USER, type, extended_addr);
f3ea5e44
AA		 948}
949
b821ecd4
AA		 950static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
951{
952 struct cfg802154_registered_device *rdev = info->user_ptr[0];
953 struct wpan_dev *wpan_dev = info->user_ptr[1];
954
955 if (!rdev->ops->del_virtual_intf)
956 return -EOPNOTSUPP;
957
958 /* If we remove a wpan device without a netdev then clear
959 * user_ptr[1] so that nl802154_post_doit won't dereference it
960 * to check if it needs to do dev_put(). Otherwise it crashes
961 * since the wpan_dev has been freed, unlike with a netdev where
962 * we need the dev_put() for the netdev to really be freed.
963 */
964 if (!wpan_dev->netdev)
965 info->user_ptr[1] = NULL;
966
967 return rdev_del_virtual_intf(rdev, wpan_dev);
968}
969
ab0bd561
AA		 970static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
971{
972 struct cfg802154_registered_device *rdev = info->user_ptr[0];
973 u8 channel, page;
974
975 if (!info->attrs[NL802154_ATTR_PAGE] ||
976 !info->attrs[NL802154_ATTR_CHANNEL])
977 return -EINVAL;
978
979 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
980 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
981
982 /* check 802.15.4 constraints */
673692fa 983 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
72f655e4 984 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
ab0bd561
AA		 985 return -EINVAL;
986
987 return rdev_set_channel(rdev, page, channel);
988}
989
ba2a9506
AA		 990static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
991{
992 struct cfg802154_registered_device *rdev = info->user_ptr[0];
993 struct wpan_phy_cca cca;
994
fc4f8052 995 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
edea8f7c
AA		 996 return -EOPNOTSUPP;
997
ba2a9506
AA		 998 if (!info->attrs[NL802154_ATTR_CCA_MODE])
999 return -EINVAL;
1000
1001 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1002 /* checking 802.15.4 constraints */
fea3318d
AA		 1003 if (cca.mode < NL802154_CCA_ENERGY ||
1004 cca.mode > NL802154_CCA_ATTR_MAX ||
1005 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
ba2a9506
AA		 1006 return -EINVAL;
1007
1008 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1009 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1010 return -EINVAL;
1011
1012 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
fea3318d
AA		 1013 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1014 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
ba2a9506
AA		 1015 return -EINVAL;
1016 }
1017
1018 return rdev_set_cca_mode(rdev, &cca);
1019}
1020
b69644c1
AA		 1021static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1022{
1023 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1024 s32 ed_level;
1025 int i;
1026
1027 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1028 return -EOPNOTSUPP;
1029
1030 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1031 return -EINVAL;
1032
1033 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1034
1035 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1036 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1037 return rdev_set_cca_ed_level(rdev, ed_level);
1038 }
1039
1040 return -EINVAL;
1041}
1042
0f999b09
VB		 1043static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1044{
1045 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1046 s32 power;
1047 int i;
1048
1049 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1050 return -EOPNOTSUPP;
1051
1052 if (!info->attrs[NL802154_ATTR_TX_POWER])
1053 return -EINVAL;
1054
1055 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1056
1057 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1058 if (power == rdev->wpan_phy.supported.tx_powers[i])
1059 return rdev_set_tx_power(rdev, power);
1060 }
1061
1062 return -EINVAL;
1063}
1064
702bf371
AA		 1065static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1066{
1067 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1068 struct net_device *dev = info->user_ptr[1];
1069 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1070 __le16 pan_id;
702bf371
AA		 1071
1072 /* conflict here while tx/rx calls */
1073 if (netif_running(dev))
1074 return -EBUSY;
1075
9e3b71f3
AA		 1076 if (wpan_dev->lowpan_dev) {
1077 if (netif_running(wpan_dev->lowpan_dev))
1078 return -EBUSY;
1079 }
1080
702bf371 1081 /* don't change address fields on monitor */
0cf0879a
AA		 1082 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1083 !info->attrs[NL802154_ATTR_PAN_ID])
702bf371
AA		 1084 return -EINVAL;
1085
ee7b9053 1086 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
702bf371 1087
673692fa
AA		 1088 /* TODO
1089 * I am not sure about to check here on broadcast pan_id.
1090 * Broadcast is a valid setting, comment from 802.15.4:
1091 * If this value is 0xffff, the device is not associated.
1092 *
1093 * This could useful to simple deassociate an device.
1094 */
1095 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1096 return -EINVAL;
1097
702bf371
AA		 1098 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1099}
1100
9830c62a
AA		 1101static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1102{
1103 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1104 struct net_device *dev = info->user_ptr[1];
1105 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1106 __le16 short_addr;
9830c62a
AA		 1107
1108 /* conflict here while tx/rx calls */
1109 if (netif_running(dev))
1110 return -EBUSY;
1111
9e3b71f3
AA		 1112 if (wpan_dev->lowpan_dev) {
1113 if (netif_running(wpan_dev->lowpan_dev))
1114 return -EBUSY;
1115 }
1116
9830c62a 1117 /* don't change address fields on monitor */
0cf0879a
AA		 1118 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1119 !info->attrs[NL802154_ATTR_SHORT_ADDR])
9830c62a
AA		 1120 return -EINVAL;
1121
ee7b9053 1122 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
9830c62a 1123
673692fa
AA		 1124 /* TODO
1125 * I am not sure about to check here on broadcast short_addr.
1126 * Broadcast is a valid setting, comment from 802.15.4:
1127 * A value of 0xfffe indicates that the device has
1128 * associated but has not been allocated an address. A
1129 * value of 0xffff indicates that the device does not
1130 * have a short address.
1131 *
1132 * I think we should allow to set these settings but
1133 * don't allow to allow socket communication with it.
1134 */
1135 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1136 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1137 return -EINVAL;
1138
9830c62a
AA		 1139 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1140}
1141
656a999e
AA		 1142static int
1143nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1144{
1145 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1146 struct net_device *dev = info->user_ptr[1];
1147 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1148 u8 min_be, max_be;
1149
1150 /* should be set on netif open inside phy settings */
1151 if (netif_running(dev))
1152 return -EBUSY;
1153
1154 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1155 !info->attrs[NL802154_ATTR_MAX_BE])
1156 return -EINVAL;
1157
1158 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1159 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1160
1161 /* check 802.15.4 constraints */
fea3318d
AA		 1162 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1163 min_be > rdev->wpan_phy.supported.max_minbe ||
1164 max_be < rdev->wpan_phy.supported.min_maxbe ||
1165 max_be > rdev->wpan_phy.supported.max_maxbe ||
1166 min_be > max_be)
656a999e
AA		 1167 return -EINVAL;
1168
1169 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1170}
1171
a01ba765
AA		 1172static int
1173nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1174{
1175 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1176 struct net_device *dev = info->user_ptr[1];
1177 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1178 u8 max_csma_backoffs;
1179
1180 /* conflict here while other running iface settings */
1181 if (netif_running(dev))
1182 return -EBUSY;
1183
1184 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1185 return -EINVAL;
1186
1187 max_csma_backoffs = nla_get_u8(
1188 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1189
1190 /* check 802.15.4 constraints */
fea3318d
AA		 1191 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1192 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
a01ba765
AA		 1193 return -EINVAL;
1194
1195 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1196}
1197
17a3a46b
AA		 1198static int
1199nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1200{
1201 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1202 struct net_device *dev = info->user_ptr[1];
1203 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1204 s8 max_frame_retries;
1205
1206 if (netif_running(dev))
1207 return -EBUSY;
1208
1209 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1210 return -EINVAL;
1211
1212 max_frame_retries = nla_get_s8(
1213 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1214
1215 /* check 802.15.4 constraints */
fea3318d
AA		 1216 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1217 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
17a3a46b
AA		 1218 return -EINVAL;
1219
1220 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1221}
1222
c8937a1d
AA		 1223static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1224{
1225 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1226 struct net_device *dev = info->user_ptr[1];
1227 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1228 int mode;
c8937a1d
AA		 1229
1230 if (netif_running(dev))
1231 return -EBUSY;
1232
1233 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1234 return -EINVAL;
1235
4e1795de
SS		 1236 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1237
1238 if (mode != 0 && mode != 1)
1239 return -EINVAL;
1240
fea3318d
AA		 1241 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1242 return -EINVAL;
1243
c8937a1d
AA		 1244 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1245}
1246
c91208d8
AA		 1247static int
1248nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1249{
1250 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1251 struct net_device *dev = info->user_ptr[1];
1252 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1253 int ackreq;
c91208d8
AA		 1254
1255 if (netif_running(dev))
1256 return -EBUSY;
1257
1258 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1259 return -EINVAL;
1260
4e1795de
SS		 1261 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1262
1263 if (ackreq != 0 && ackreq != 1)
1264 return -EINVAL;
1265
c91208d8
AA		 1266 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1267}
1268
66e5c267
AA		 1269static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1270{
1271 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1272 struct net *net;
1273 int err;
1274
1275 if (info->attrs[NL802154_ATTR_PID]) {
1276 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1277
1278 net = get_net_ns_by_pid(pid);
1279 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1280 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1281
1282 net = get_net_ns_by_fd(fd);
1283 } else {
1284 return -EINVAL;
1285 }
1286
1287 if (IS_ERR(net))
1288 return PTR_ERR(net);
1289
1290 err = 0;
1291
1292 /* check if anything to do */
1293 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1294 err = cfg802154_switch_netns(rdev, net);
1295
1296 put_net(net);
1297 return err;
1298}
1299
a26c5fd7
AA		 1300#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1301static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1302 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1303 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1304 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1305 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1306};
79fe1a2a 1307
a26c5fd7
AA		 1308static int
1309ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1310 struct ieee802154_addr *addr)
79fe1a2a 1311{
a26c5fd7 1312 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
79fe1a2a 1313
8cb08174 1314 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
a26c5fd7 1315 return -EINVAL;
79fe1a2a 1316
92630c3b 1317 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE])
a26c5fd7 1318 return -EINVAL;
79fe1a2a 1319
a26c5fd7
AA		 1320 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1321 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1322 switch (addr->mode) {
1323 case NL802154_DEV_ADDR_SHORT:
92630c3b
DR		 1324 if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT])
1325 return -EINVAL;
a26c5fd7
AA		 1326 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1327 break;
1328 case NL802154_DEV_ADDR_EXTENDED:
92630c3b
DR		 1329 if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])
1330 return -EINVAL;
a26c5fd7
AA		 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
f8fcac6e
AA		 1409 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1410 return -EOPNOTSUPP;
1411
a26c5fd7
AA		 1412 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1413 u8 enabled;
1414
1415 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1416 if (enabled != 0 && enabled != 1)
1417 return -EINVAL;
1418
1419 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1420 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1421 }
1422
1423 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1424 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1425 &params.out_key);
1426 if (ret < 0)
1427 return ret;
1428
1429 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1430 }
1431
1432 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1433 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1434 if (params.out_level > NL802154_SECLEVEL_MAX)
1435 return -EINVAL;
1436
1437 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1438 }
1439
1440 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1441 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1442 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1443 }
1444
1445 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1446}
1447
1448static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1449 u32 seq, int flags,
1450 struct cfg802154_registered_device *rdev,
1451 struct net_device *dev,
1452 const struct ieee802154_llsec_key_entry *key)
1453{
1454 void *hdr;
1455 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1456 struct nlattr *nl_key, *nl_key_id;
1457
1458 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1459 if (!hdr)
de2f7b6f 1460 return -ENOBUFS;
a26c5fd7
AA		 1461
1462 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1463 goto nla_put_failure;
1464
ae0be8de 1465 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
a26c5fd7
AA		 1466 if (!nl_key)
1467 goto nla_put_failure;
1468
ae0be8de 1469 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
a26c5fd7
AA		 1470 if (!nl_key_id)
1471 goto nla_put_failure;
1472
1473 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1474 goto nla_put_failure;
1475
1476 nla_nest_end(msg, nl_key_id);
1477
1478 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1479 key->key->frame_types))
1480 goto nla_put_failure;
1481
1482 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1483 /* TODO for each nested */
1484 memset(commands, 0, sizeof(commands));
1485 commands[7] = key->key->cmd_frame_ids;
1486 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1487 sizeof(commands), commands))
1488 goto nla_put_failure;
1489 }
1490
1491 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1492 key->key->key))
1493 goto nla_put_failure;
1494
1495 nla_nest_end(msg, nl_key);
1496 genlmsg_end(msg, hdr);
1497
1498 return 0;
1499
1500nla_put_failure:
1501 genlmsg_cancel(msg, hdr);
1502 return -EMSGSIZE;
1503}
1504
1505static int
1506nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1507{
1508 struct cfg802154_registered_device *rdev = NULL;
1509 struct ieee802154_llsec_key_entry *key;
1510 struct ieee802154_llsec_table *table;
1511 struct wpan_dev *wpan_dev;
1512 int err;
1513
1514 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1515 if (err)
1516 return err;
1517
e9649e1b
AA		 1518 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1519 err = skb->len;
1520 goto out_err;
1521 }
1522
a26c5fd7
AA		 1523 if (!wpan_dev->netdev) {
1524 err = -EINVAL;
1525 goto out_err;
1526 }
1527
1528 rdev_lock_llsec_table(rdev, wpan_dev);
1529 rdev_get_llsec_table(rdev, wpan_dev, &table);
1530
1531 /* TODO make it like station dump */
1532 if (cb->args[2])
1533 goto out;
1534
1535 list_for_each_entry(key, &table->keys, list) {
1536 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1537 NETLINK_CB(cb->skb).portid,
1538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1539 rdev, wpan_dev->netdev, key) < 0) {
1540 /* TODO */
1541 err = -EIO;
1542 rdev_unlock_llsec_table(rdev, wpan_dev);
1543 goto out_err;
79fe1a2a
AA		 1544 }
1545 }
1546
a26c5fd7
AA		 1547 cb->args[2] = 1;
1548
1549out:
1550 rdev_unlock_llsec_table(rdev, wpan_dev);
1551 err = skb->len;
1552out_err:
1553 nl802154_finish_wpan_dev_dump(rdev);
1554
1555 return err;
79fe1a2a
AA		 1556}
1557
a26c5fd7
AA		 1558static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1559 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1560 /* TODO handle it as for_each_nested and NLA_FLAG? */
1561 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1562 /* TODO handle it as for_each_nested, not static array? */
1563 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1564 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1565};
1566
1567static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1568{
1569 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1570 struct net_device *dev = info->user_ptr[1];
1571 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1572 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1573 struct ieee802154_llsec_key key = { };
1574 struct ieee802154_llsec_key_id id = { };
1575 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1576
6fb79766
AA		 1577 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1578 return -EOPNOTSUPP;
1579
d61eb95a
AA		 1580 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1581 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1582 return -EINVAL;
1583
1584 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1585 !attrs[NL802154_KEY_ATTR_BYTES])
aa655562 1586 return -EINVAL;
a26c5fd7
AA		 1587
1588 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1589 return -ENOBUFS;
1590
1591 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1592 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1593 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1594 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1595 return -EINVAL;
1596
1597 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1598 /* TODO for each nested */
1599 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1600 NL802154_CMD_FRAME_NR_IDS / 8);
1601
1602 /* TODO understand the -EINVAL logic here? last condition */
1603 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1604 commands[4] || commands[5] || commands[6] ||
1605 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1606 return -EINVAL;
1607
1608 key.cmd_frame_ids = commands[7];
1609 } else {
1610 key.cmd_frame_ids = 0;
1611 }
1612
1613 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1614
1615 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1616 return -ENOBUFS;
1617
1618 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1619}
1620
1621static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1622{
1623 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1624 struct net_device *dev = info->user_ptr[1];
1625 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1626 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1627 struct ieee802154_llsec_key_id id;
1628
d4372234
AA		 1629 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1630 return -EOPNOTSUPP;
1631
ab456e82
AA		 1632 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1633 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1634 return -EINVAL;
1635
1636 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1637 return -ENOBUFS;
1638
1639 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1640}
1641
1642static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1643 u32 seq, int flags,
1644 struct cfg802154_registered_device *rdev,
1645 struct net_device *dev,
1646 const struct ieee802154_llsec_device *dev_desc)
1647{
1648 void *hdr;
1649 struct nlattr *nl_device;
1650
1651 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1652 if (!hdr)
de2f7b6f 1653 return -ENOBUFS;
a26c5fd7
AA		 1654
1655 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1656 goto nla_put_failure;
1657
ae0be8de 1658 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
a26c5fd7
AA		 1659 if (!nl_device)
1660 goto nla_put_failure;
1661
1662 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1663 dev_desc->frame_counter) ||
1664 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1665 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1666 dev_desc->short_addr) ||
1667 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
e7479122 1668 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
a26c5fd7
AA		 1669 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1670 dev_desc->seclevel_exempt) ||
1671 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1672 goto nla_put_failure;
1673
1674 nla_nest_end(msg, nl_device);
1675 genlmsg_end(msg, hdr);
1676
1677 return 0;
1678
1679nla_put_failure:
1680 genlmsg_cancel(msg, hdr);
1681 return -EMSGSIZE;
1682}
1683
1684static int
1685nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1686{
1687 struct cfg802154_registered_device *rdev = NULL;
1688 struct ieee802154_llsec_device *dev;
1689 struct ieee802154_llsec_table *table;
1690 struct wpan_dev *wpan_dev;
1691 int err;
1692
1693 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1694 if (err)
1695 return err;
1696
2b2f0c82
AA		 1697 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1698 err = skb->len;
1699 goto out_err;
1700 }
1701
a26c5fd7
AA		 1702 if (!wpan_dev->netdev) {
1703 err = -EINVAL;
1704 goto out_err;
1705 }
1706
1707 rdev_lock_llsec_table(rdev, wpan_dev);
1708 rdev_get_llsec_table(rdev, wpan_dev, &table);
1709
1710 /* TODO make it like station dump */
1711 if (cb->args[2])
1712 goto out;
1713
1714 list_for_each_entry(dev, &table->devices, list) {
1715 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1716 NETLINK_CB(cb->skb).portid,
1717 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1718 rdev, wpan_dev->netdev, dev) < 0) {
1719 /* TODO */
1720 err = -EIO;
1721 rdev_unlock_llsec_table(rdev, wpan_dev);
1722 goto out_err;
1723 }
1724 }
1725
1726 cb->args[2] = 1;
1727
1728out:
1729 rdev_unlock_llsec_table(rdev, wpan_dev);
1730 err = skb->len;
1731out_err:
1732 nl802154_finish_wpan_dev_dump(rdev);
1733
1734 return err;
1735}
1736
1737static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1738 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1739 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1740 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1741 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1742 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1743 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1744};
1745
1746static int
1747ieee802154_llsec_parse_device(struct nlattr *nla,
1748 struct ieee802154_llsec_device *dev)
1749{
1750 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1751
8cb08174 1752 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
a26c5fd7
AA		 1753 return -EINVAL;
1754
1755 memset(dev, 0, sizeof(*dev));
1756
1757 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1758 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1759 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1760 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1761 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1762 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1763 return -EINVAL;
1764
1765 /* TODO be32 */
1766 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1767 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1768 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1769 /* TODO rename hwaddr to extended_addr */
1770 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1771 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1772 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1773
1774 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1775 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1776 return -EINVAL;
1777
1778 return 0;
1779}
1780
1781static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1782{
1783 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1784 struct net_device *dev = info->user_ptr[1];
1785 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1786 struct ieee802154_llsec_device dev_desc;
1787
ba33ce30
AA		 1788 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1789 return -EOPNOTSUPP;
1790
a26c5fd7
AA		 1791 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1792 &dev_desc) < 0)
1793 return -EINVAL;
1794
1795 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1796}
1797
1798static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1799{
1800 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1801 struct net_device *dev = info->user_ptr[1];
1802 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1803 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1804 __le64 extended_addr;
1805
36723699
AA		 1806 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1807 return -EOPNOTSUPP;
1808
ee9566d8
AA		 1809 if (!info->attrs[NL802154_ATTR_SEC_DEVICE] ||
1810 nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
a26c5fd7
AA		 1811 return -EINVAL;
1812
1813 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1814 return -EINVAL;
1815
1816 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1817 return rdev_del_device(rdev, wpan_dev, extended_addr);
1818}
1819
1820static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1821 u32 seq, int flags,
1822 struct cfg802154_registered_device *rdev,
1823 struct net_device *dev, __le64 extended_addr,
1824 const struct ieee802154_llsec_device_key *devkey)
1825{
1826 void *hdr;
1827 struct nlattr *nl_devkey, *nl_key_id;
1828
1829 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1830 if (!hdr)
de2f7b6f 1831 return -ENOBUFS;
a26c5fd7
AA		 1832
1833 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1834 goto nla_put_failure;
1835
ae0be8de 1836 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
a26c5fd7
AA		 1837 if (!nl_devkey)
1838 goto nla_put_failure;
1839
1840 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
e7479122 1841 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
a26c5fd7
AA		 1842 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1843 devkey->frame_counter))
1844 goto nla_put_failure;
1845
ae0be8de 1846 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
a26c5fd7
AA		 1847 if (!nl_key_id)
1848 goto nla_put_failure;
1849
1850 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1851 goto nla_put_failure;
1852
1853 nla_nest_end(msg, nl_key_id);
1854 nla_nest_end(msg, nl_devkey);
1855 genlmsg_end(msg, hdr);
1856
1857 return 0;
1858
1859nla_put_failure:
1860 genlmsg_cancel(msg, hdr);
1861 return -EMSGSIZE;
1862}
1863
1864static int
1865nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1866{
1867 struct cfg802154_registered_device *rdev = NULL;
1868 struct ieee802154_llsec_device_key *kpos;
1869 struct ieee802154_llsec_device *dpos;
1870 struct ieee802154_llsec_table *table;
1871 struct wpan_dev *wpan_dev;
1872 int err;
1873
1874 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1875 if (err)
1876 return err;
1877
481a48c2
AA		 1878 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1879 err = skb->len;
1880 goto out_err;
1881 }
1882
a26c5fd7
AA		 1883 if (!wpan_dev->netdev) {
1884 err = -EINVAL;
1885 goto out_err;
1886 }
1887
1888 rdev_lock_llsec_table(rdev, wpan_dev);
1889 rdev_get_llsec_table(rdev, wpan_dev, &table);
1890
1891 /* TODO make it like station dump */
1892 if (cb->args[2])
1893 goto out;
1894
1895 /* TODO look if remove devkey and do some nested attribute */
1896 list_for_each_entry(dpos, &table->devices, list) {
1897 list_for_each_entry(kpos, &dpos->keys, list) {
1898 if (nl802154_send_devkey(skb,
1899 NL802154_CMD_NEW_SEC_LEVEL,
1900 NETLINK_CB(cb->skb).portid,
1901 cb->nlh->nlmsg_seq,
1902 NLM_F_MULTI, rdev,
1903 wpan_dev->netdev,
1904 dpos->hwaddr,
1905 kpos) < 0) {
1906 /* TODO */
1907 err = -EIO;
1908 rdev_unlock_llsec_table(rdev, wpan_dev);
1909 goto out_err;
1910 }
1911 }
1912 }
1913
1914 cb->args[2] = 1;
1915
1916out:
1917 rdev_unlock_llsec_table(rdev, wpan_dev);
1918 err = skb->len;
1919out_err:
1920 nl802154_finish_wpan_dev_dump(rdev);
1921
1922 return err;
1923}
1924
1925static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1926 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1927 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1928 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1929};
1930
1931static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1932{
1933 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1934 struct net_device *dev = info->user_ptr[1];
1935 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1936 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1937 struct ieee802154_llsec_device_key key;
1938 __le64 extended_addr;
1939
a69bd8ac
AA		 1940 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1941 return -EOPNOTSUPP;
1942
a26c5fd7 1943 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
8cb08174 1944 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
a26c5fd7
AA		 1945 return -EINVAL;
1946
1947 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1948 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1949 return -EINVAL;
1950
1951 /* TODO change key.id ? */
1952 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1953 &key.key_id) < 0)
1954 return -ENOBUFS;
1955
1956 /* TODO be32 */
1957 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1958 /* TODO change naming hwaddr -> extended_addr
1959 * check unique identifier short+pan OR extended_addr
1960 */
1961 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1962 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1963}
1964
1965static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1966{
1967 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1968 struct net_device *dev = info->user_ptr[1];
1969 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1970 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1971 struct ieee802154_llsec_device_key key;
1972 __le64 extended_addr;
1973
0d5f92cd
AA		 1974 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1975 return -EOPNOTSUPP;
1976
b6a429e9
AA		 1977 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1978 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
a26c5fd7
AA		 1979 return -EINVAL;
1980
1981 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1982 return -EINVAL;
1983
1984 /* TODO change key.id ? */
1985 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1986 &key.key_id) < 0)
1987 return -ENOBUFS;
1988
1989 /* TODO change naming hwaddr -> extended_addr
1990 * check unique identifier short+pan OR extended_addr
1991 */
1992 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1993 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1994}
1995
1996static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1997 u32 seq, int flags,
1998 struct cfg802154_registered_device *rdev,
1999 struct net_device *dev,
2000 const struct ieee802154_llsec_seclevel *sl)
2001{
2002 void *hdr;
2003 struct nlattr *nl_seclevel;
2004
2005 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
2006 if (!hdr)
de2f7b6f 2007 return -ENOBUFS;
a26c5fd7
AA		 2008
2009 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
2010 goto nla_put_failure;
2011
ae0be8de 2012 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
a26c5fd7
AA		 2013 if (!nl_seclevel)
2014 goto nla_put_failure;
2015
2016 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
2017 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
2018 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
2019 sl->device_override))
2020 goto nla_put_failure;
2021
2022 if (sl->frame_type == NL802154_FRAME_CMD) {
2023 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
2024 sl->cmd_frame_id))
2025 goto nla_put_failure;
2026 }
2027
2028 nla_nest_end(msg, nl_seclevel);
2029 genlmsg_end(msg, hdr);
2030
2031 return 0;
2032
2033nla_put_failure:
2034 genlmsg_cancel(msg, hdr);
2035 return -EMSGSIZE;
2036}
2037
2038static int
2039nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2040{
2041 struct cfg802154_registered_device *rdev = NULL;
2042 struct ieee802154_llsec_seclevel *sl;
2043 struct ieee802154_llsec_table *table;
2044 struct wpan_dev *wpan_dev;
2045 int err;
2046
2047 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2048 if (err)
2049 return err;
2050
4eda4331
AA		 2051 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
2052 err = skb->len;
2053 goto out_err;
2054 }
2055
a26c5fd7
AA		 2056 if (!wpan_dev->netdev) {
2057 err = -EINVAL;
2058 goto out_err;
2059 }
2060
2061 rdev_lock_llsec_table(rdev, wpan_dev);
2062 rdev_get_llsec_table(rdev, wpan_dev, &table);
2063
2064 /* TODO make it like station dump */
2065 if (cb->args[2])
2066 goto out;
2067
2068 list_for_each_entry(sl, &table->security_levels, list) {
2069 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2070 NETLINK_CB(cb->skb).portid,
2071 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2072 rdev, wpan_dev->netdev, sl) < 0) {
2073 /* TODO */
2074 err = -EIO;
2075 rdev_unlock_llsec_table(rdev, wpan_dev);
2076 goto out_err;
2077 }
2078 }
2079
2080 cb->args[2] = 1;
2081
2082out:
2083 rdev_unlock_llsec_table(rdev, wpan_dev);
2084 err = skb->len;
2085out_err:
2086 nl802154_finish_wpan_dev_dump(rdev);
2087
2088 return err;
2089}
2090
2091static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2092 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2093 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2094 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2095 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2096};
2097
2098static int
2099llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2100{
2101 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2102
8cb08174 2103 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
a26c5fd7
AA		 2104 return -EINVAL;
2105
2106 memset(sl, 0, sizeof(*sl));
2107
2108 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2109 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2110 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2111 return -EINVAL;
2112
2113 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2114 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2115 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2116 if (sl->frame_type > NL802154_FRAME_MAX ||
2117 (sl->device_override != 0 && sl->device_override != 1))
2118 return -EINVAL;
2119
2120 if (sl->frame_type == NL802154_FRAME_CMD) {
2121 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2122 return -EINVAL;
2123
2124 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2125 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2126 return -EINVAL;
2127 }
2128
2129 return 0;
2130}
2131
2132static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2133 struct genl_info *info)
2134{
2135 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2136 struct net_device *dev = info->user_ptr[1];
2137 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2138 struct ieee802154_llsec_seclevel sl;
2139
cae50959
AA		 2140 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2141 return -EOPNOTSUPP;
2142
a26c5fd7
AA		 2143 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2144 &sl) < 0)
2145 return -EINVAL;
2146
2147 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2148}
2149
2150static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2151 struct genl_info *info)
2152{
2153 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2154 struct net_device *dev = info->user_ptr[1];
2155 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2156 struct ieee802154_llsec_seclevel sl;
2157
c6943c39
AA		 2158 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2159 return -EOPNOTSUPP;
2160
a26c5fd7
AA		 2161 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2162 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2163 &sl) < 0)
2164 return -EINVAL;
2165
2166 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2167}
2168#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2169
2170#define NL802154_FLAG_NEED_WPAN_PHY 0x01
2171#define NL802154_FLAG_NEED_NETDEV 0x02
2172#define NL802154_FLAG_NEED_RTNL 0x04
2173#define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2174#define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2175 NL802154_FLAG_CHECK_NETDEV_UP)
2176#define NL802154_FLAG_NEED_WPAN_DEV 0x10
2177#define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2178 NL802154_FLAG_CHECK_NETDEV_UP)
2179
2180static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2181 struct genl_info *info)
2182{
2183 struct cfg802154_registered_device *rdev;
2184 struct wpan_dev *wpan_dev;
2185 struct net_device *dev;
2186 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2187
2188 if (rtnl)
2189 rtnl_lock();
2190
2191 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2192 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2193 if (IS_ERR(rdev)) {
2194 if (rtnl)
2195 rtnl_unlock();
2196 return PTR_ERR(rdev);
2197 }
2198 info->user_ptr[0] = rdev;
2199 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2200 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2201 ASSERT_RTNL();
2202 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2203 info->attrs);
2204 if (IS_ERR(wpan_dev)) {
2205 if (rtnl)
2206 rtnl_unlock();
2207 return PTR_ERR(wpan_dev);
2208 }
2209
2210 dev = wpan_dev->netdev;
2211 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2212
2213 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2214 if (!dev) {
2215 if (rtnl)
2216 rtnl_unlock();
2217 return -EINVAL;
2218 }
2219
2220 info->user_ptr[1] = dev;
2221 } else {
2222 info->user_ptr[1] = wpan_dev;
2223 }
2224
2225 if (dev) {
2226 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2227 !netif_running(dev)) {
2228 if (rtnl)
2229 rtnl_unlock();
2230 return -ENETDOWN;
2231 }
2232
2233 dev_hold(dev);
2234 }
2235
2236 info->user_ptr[0] = rdev;
2237 }
2238
2239 return 0;
2240}
2241
2242static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2243 struct genl_info *info)
2244{
2245 if (info->user_ptr[1]) {
2246 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2247 struct wpan_dev *wpan_dev = info->user_ptr[1];
2248
2249 if (wpan_dev->netdev)
2250 dev_put(wpan_dev->netdev);
2251 } else {
2252 dev_put(info->user_ptr[1]);
2253 }
2254 }
2255
2256 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2257 rtnl_unlock();
2258}
2259
2260static const struct genl_ops nl802154_ops[] = {
2261 {
2262 .cmd = NL802154_CMD_GET_WPAN_PHY,
ef6243ac 2263 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2264 .doit = nl802154_get_wpan_phy,
2265 .dumpit = nl802154_dump_wpan_phy,
2266 .done = nl802154_dump_wpan_phy_done,
a26c5fd7
AA		 2267 /* can be retrieved by unprivileged users */
2268 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2269 NL802154_FLAG_NEED_RTNL,
2270 },
2271 {
2272 .cmd = NL802154_CMD_GET_INTERFACE,
ef6243ac 2273 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2274 .doit = nl802154_get_interface,
2275 .dumpit = nl802154_dump_interface,
a26c5fd7
AA		 2276 /* can be retrieved by unprivileged users */
2277 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2278 NL802154_FLAG_NEED_RTNL,
2279 },
2280 {
2281 .cmd = NL802154_CMD_NEW_INTERFACE,
ef6243ac 2282 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2283 .doit = nl802154_new_interface,
a26c5fd7
AA		 2284 .flags = GENL_ADMIN_PERM,
2285 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
f3ea5e44
AA		 2286 NL802154_FLAG_NEED_RTNL,
2287 },
b821ecd4
AA		 2288 {
2289 .cmd = NL802154_CMD_DEL_INTERFACE,
ef6243ac 2290 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b821ecd4 2291 .doit = nl802154_del_interface,
b821ecd4
AA		 2292 .flags = GENL_ADMIN_PERM,
2293 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2294 NL802154_FLAG_NEED_RTNL,
2295 },
ab0bd561
AA		 2296 {
2297 .cmd = NL802154_CMD_SET_CHANNEL,
ef6243ac 2298 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ab0bd561 2299 .doit = nl802154_set_channel,
ab0bd561
AA		 2300 .flags = GENL_ADMIN_PERM,
2301 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2302 NL802154_FLAG_NEED_RTNL,
2303 },
ba2a9506
AA		 2304 {
2305 .cmd = NL802154_CMD_SET_CCA_MODE,
ef6243ac 2306 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ba2a9506 2307 .doit = nl802154_set_cca_mode,
ba2a9506
AA		 2308 .flags = GENL_ADMIN_PERM,
2309 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2310 NL802154_FLAG_NEED_RTNL,
2311 },
b69644c1
AA		 2312 {
2313 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
ef6243ac 2314 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b69644c1 2315 .doit = nl802154_set_cca_ed_level,
b69644c1
AA		 2316 .flags = GENL_ADMIN_PERM,
2317 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2318 NL802154_FLAG_NEED_RTNL,
2319 },
0f999b09
VB		 2320 {
2321 .cmd = NL802154_CMD_SET_TX_POWER,
ef6243ac 2322 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
0f999b09 2323 .doit = nl802154_set_tx_power,
0f999b09 2324 .flags = GENL_ADMIN_PERM,
66e5c267
AA		 2325 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2326 NL802154_FLAG_NEED_RTNL,
2327 },
2328 {
2329 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
ef6243ac 2330 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
66e5c267 2331 .doit = nl802154_wpan_phy_netns,
66e5c267 2332 .flags = GENL_ADMIN_PERM,
0f999b09
VB		 2333 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2334 NL802154_FLAG_NEED_RTNL,
2335 },
702bf371
AA		 2336 {
2337 .cmd = NL802154_CMD_SET_PAN_ID,
ef6243ac 2338 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
702bf371 2339 .doit = nl802154_set_pan_id,
702bf371
AA		 2340 .flags = GENL_ADMIN_PERM,
2341 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2342 NL802154_FLAG_NEED_RTNL,
2343 },
9830c62a
AA		 2344 {
2345 .cmd = NL802154_CMD_SET_SHORT_ADDR,
ef6243ac 2346 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
9830c62a 2347 .doit = nl802154_set_short_addr,
9830c62a
AA		 2348 .flags = GENL_ADMIN_PERM,
2349 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2350 NL802154_FLAG_NEED_RTNL,
2351 },
656a999e
AA		 2352 {
2353 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
ef6243ac 2354 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
656a999e 2355 .doit = nl802154_set_backoff_exponent,
656a999e
AA		 2356 .flags = GENL_ADMIN_PERM,
2357 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2358 NL802154_FLAG_NEED_RTNL,
2359 },
a01ba765
AA		 2360 {
2361 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
ef6243ac 2362 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a01ba765 2363 .doit = nl802154_set_max_csma_backoffs,
a01ba765
AA		 2364 .flags = GENL_ADMIN_PERM,
2365 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2366 NL802154_FLAG_NEED_RTNL,
2367 },
17a3a46b
AA		 2368 {
2369 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
ef6243ac 2370 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
17a3a46b 2371 .doit = nl802154_set_max_frame_retries,
17a3a46b
AA		 2372 .flags = GENL_ADMIN_PERM,
2373 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2374 NL802154_FLAG_NEED_RTNL,
2375 },
c8937a1d
AA		 2376 {
2377 .cmd = NL802154_CMD_SET_LBT_MODE,
ef6243ac 2378 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c8937a1d 2379 .doit = nl802154_set_lbt_mode,
c8937a1d
AA		 2380 .flags = GENL_ADMIN_PERM,
2381 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2382 NL802154_FLAG_NEED_RTNL,
2383 },
c91208d8
AA		 2384 {
2385 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
ef6243ac 2386 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c91208d8 2387 .doit = nl802154_set_ackreq_default,
c91208d8
AA		 2388 .flags = GENL_ADMIN_PERM,
2389 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2390 NL802154_FLAG_NEED_RTNL,
2391 },
a26c5fd7
AA		 2392#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2393 {
2394 .cmd = NL802154_CMD_SET_SEC_PARAMS,
ef6243ac 2395 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2396 .doit = nl802154_set_llsec_params,
a26c5fd7
AA		 2397 .flags = GENL_ADMIN_PERM,
2398 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2399 NL802154_FLAG_NEED_RTNL,
2400 },
2401 {
2402 .cmd = NL802154_CMD_GET_SEC_KEY,
ef6243ac 2403 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2404 /* TODO .doit by matching key id? */
2405 .dumpit = nl802154_dump_llsec_key,
a26c5fd7
AA		 2406 .flags = GENL_ADMIN_PERM,
2407 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2408 NL802154_FLAG_NEED_RTNL,
2409 },
2410 {
2411 .cmd = NL802154_CMD_NEW_SEC_KEY,
ef6243ac 2412 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2413 .doit = nl802154_add_llsec_key,
a26c5fd7
AA		 2414 .flags = GENL_ADMIN_PERM,
2415 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2416 NL802154_FLAG_NEED_RTNL,
2417 },
2418 {
2419 .cmd = NL802154_CMD_DEL_SEC_KEY,
ef6243ac 2420 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2421 .doit = nl802154_del_llsec_key,
a26c5fd7
AA		 2422 .flags = GENL_ADMIN_PERM,
2423 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2424 NL802154_FLAG_NEED_RTNL,
2425 },
2426 /* TODO unique identifier must short+pan OR extended_addr */
2427 {
2428 .cmd = NL802154_CMD_GET_SEC_DEV,
ef6243ac 2429 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2430 /* TODO .doit by matching extended_addr? */
2431 .dumpit = nl802154_dump_llsec_dev,
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_DEV,
ef6243ac 2438 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2439 .doit = nl802154_add_llsec_dev,
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_DEV,
ef6243ac 2446 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2447 .doit = nl802154_del_llsec_dev,
a26c5fd7
AA		 2448 .flags = GENL_ADMIN_PERM,
2449 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2450 NL802154_FLAG_NEED_RTNL,
2451 },
2452 /* TODO remove complete devkey, put it as nested? */
2453 {
2454 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
ef6243ac 2455 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2456 /* TODO doit by matching ??? */
2457 .dumpit = nl802154_dump_llsec_devkey,
a26c5fd7
AA		 2458 .flags = GENL_ADMIN_PERM,
2459 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2460 NL802154_FLAG_NEED_RTNL,
2461 },
2462 {
2463 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
ef6243ac 2464 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2465 .doit = nl802154_add_llsec_devkey,
a26c5fd7
AA		 2466 .flags = GENL_ADMIN_PERM,
2467 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2468 NL802154_FLAG_NEED_RTNL,
2469 },
2470 {
2471 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
ef6243ac 2472 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2473 .doit = nl802154_del_llsec_devkey,
a26c5fd7
AA		 2474 .flags = GENL_ADMIN_PERM,
2475 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2476 NL802154_FLAG_NEED_RTNL,
2477 },
2478 {
2479 .cmd = NL802154_CMD_GET_SEC_LEVEL,
ef6243ac 2480 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2481 /* TODO .doit by matching frame_type? */
2482 .dumpit = nl802154_dump_llsec_seclevel,
a26c5fd7
AA		 2483 .flags = GENL_ADMIN_PERM,
2484 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2485 NL802154_FLAG_NEED_RTNL,
2486 },
2487 {
2488 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
ef6243ac 2489 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2490 .doit = nl802154_add_llsec_seclevel,
a26c5fd7
AA		 2491 .flags = GENL_ADMIN_PERM,
2492 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2493 NL802154_FLAG_NEED_RTNL,
2494 },
2495 {
2496 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
ef6243ac 2497 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2498 /* TODO match frame_type only? */
2499 .doit = nl802154_del_llsec_seclevel,
a26c5fd7
AA		 2500 .flags = GENL_ADMIN_PERM,
2501 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2502 NL802154_FLAG_NEED_RTNL,
2503 },
2504#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
79fe1a2a
AA		 2505};
2506
56989f6d 2507static struct genl_family nl802154_fam __ro_after_init = {
489111e5
JB		 2508 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2509 .hdrsize = 0, /* no private header */
2510 .version = 1, /* no particular meaning now */
2511 .maxattr = NL802154_ATTR_MAX,
3b0f31f2 2512 .policy = nl802154_policy,
489111e5
JB		 2513 .netnsok = true,
2514 .pre_doit = nl802154_pre_doit,
2515 .post_doit = nl802154_post_doit,
2516 .module = THIS_MODULE,
2517 .ops = nl802154_ops,
2518 .n_ops = ARRAY_SIZE(nl802154_ops),
2519 .mcgrps = nl802154_mcgrps,
2520 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2521};
2522
79fe1a2a 2523/* initialisation/exit functions */
56989f6d 2524int __init nl802154_init(void)
79fe1a2a 2525{
489111e5 2526 return genl_register_family(&nl802154_fam);
79fe1a2a
AA		 2527}
2528
2529void nl802154_exit(void)
2530{
2531 genl_unregister_family(&nl802154_fam);
2532}
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