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[mirror_ubuntu-jammy-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{
75cdbdd0 239 const struct genl_dumpit_info *info = genl_dumpit_info(cb);
a26c5fd7
AA		 240 int err;
241
242 rtnl_lock();
243
244 if (!cb->args[0]) {
a26c5fd7 245 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
75cdbdd0 246 info->attrs);
a26c5fd7
AA		 247 if (IS_ERR(*wpan_dev)) {
248 err = PTR_ERR(*wpan_dev);
249 goto out_unlock;
250 }
251 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
252 /* 0 is the first index - add 1 to parse only once */
253 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
254 cb->args[1] = (*wpan_dev)->identifier;
255 } else {
256 /* subtract the 1 again here */
257 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
258 struct wpan_dev *tmp;
259
260 if (!wpan_phy) {
261 err = -ENODEV;
262 goto out_unlock;
263 }
264 *rdev = wpan_phy_to_rdev(wpan_phy);
265 *wpan_dev = NULL;
266
267 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
268 if (tmp->identifier == cb->args[1]) {
269 *wpan_dev = tmp;
270 break;
271 }
272 }
273
274 if (!*wpan_dev) {
275 err = -ENODEV;
276 goto out_unlock;
277 }
278 }
279
280 return 0;
281 out_unlock:
282 rtnl_unlock();
283 return err;
284}
285
286static void
287nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
288{
289 rtnl_unlock();
290}
291#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
292
79fe1a2a
AA		 293/* message building helper */
294static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
295 int flags, u8 cmd)
296{
297 /* since there is no private header just add the generic one */
298 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
299}
300
0e665457
AA		 301static int
302nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
303{
ae0be8de 304 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr);
0e665457
AA		 305 int i;
306
307 if (!nl_flags)
308 return -ENOBUFS;
309
310 i = 0;
311 while (mask) {
312 if ((mask & 1) && nla_put_flag(msg, i))
313 return -ENOBUFS;
314
315 mask >>= 1;
316 i++;
317 }
318
319 nla_nest_end(msg, nl_flags);
320 return 0;
321}
322
ca20ce20
AA		 323static int
324nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
325 struct sk_buff *msg)
326{
327 struct nlattr *nl_page;
328 unsigned long page;
329
ae0be8de 330 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
ca20ce20
AA		 331 if (!nl_page)
332 return -ENOBUFS;
333
cb41c8dd 334 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
ca20ce20 335 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
72f655e4 336 rdev->wpan_phy.supported.channels[page]))
ca20ce20
AA		 337 return -ENOBUFS;
338 }
339 nla_nest_end(msg, nl_page);
340
341 return 0;
342}
343
0e665457
AA		 344static int
345nl802154_put_capabilities(struct sk_buff *msg,
346 struct cfg802154_registered_device *rdev)
347{
348 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
349 struct nlattr *nl_caps, *nl_channels;
350 int i;
351
ae0be8de 352 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS);
0e665457
AA		 353 if (!nl_caps)
354 return -ENOBUFS;
355
ae0be8de 356 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS);
0e665457
AA		 357 if (!nl_channels)
358 return -ENOBUFS;
359
360 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
361 if (caps->channels[i]) {
362 if (nl802154_put_flags(msg, i, caps->channels[i]))
363 return -ENOBUFS;
364 }
365 }
366
367 nla_nest_end(msg, nl_channels);
368
369 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
370 struct nlattr *nl_ed_lvls;
371
ae0be8de
MK		 372 nl_ed_lvls = nla_nest_start_noflag(msg,
373 NL802154_CAP_ATTR_CCA_ED_LEVELS);
0e665457
AA		 374 if (!nl_ed_lvls)
375 return -ENOBUFS;
376
377 for (i = 0; i < caps->cca_ed_levels_size; i++) {
378 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
379 return -ENOBUFS;
380 }
381
382 nla_nest_end(msg, nl_ed_lvls);
383 }
384
385 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
386 struct nlattr *nl_tx_pwrs;
387
ae0be8de
MK		 388 nl_tx_pwrs = nla_nest_start_noflag(msg,
389 NL802154_CAP_ATTR_TX_POWERS);
0e665457
AA		 390 if (!nl_tx_pwrs)
391 return -ENOBUFS;
392
393 for (i = 0; i < caps->tx_powers_size; i++) {
394 if (nla_put_s32(msg, i, caps->tx_powers[i]))
395 return -ENOBUFS;
396 }
397
398 nla_nest_end(msg, nl_tx_pwrs);
399 }
400
401 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
402 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
403 caps->cca_modes) ||
404 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
405 caps->cca_opts))
406 return -ENOBUFS;
407 }
408
409 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
410 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
411 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
412 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
413 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
414 caps->min_csma_backoffs) ||
415 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
416 caps->max_csma_backoffs) ||
417 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
418 caps->min_frame_retries) ||
419 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
420 caps->max_frame_retries) ||
421 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
422 caps->iftypes) ||
423 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
424 return -ENOBUFS;
425
426 nla_nest_end(msg, nl_caps);
427
428 return 0;
429}
430
ca20ce20
AA		 431static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
432 enum nl802154_commands cmd,
433 struct sk_buff *msg, u32 portid, u32 seq,
434 int flags)
435{
133be026 436 struct nlattr *nl_cmds;
ca20ce20 437 void *hdr;
133be026 438 int i;
ca20ce20
AA		 439
440 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
441 if (!hdr)
442 return -ENOBUFS;
443
444 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
445 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
446 wpan_phy_name(&rdev->wpan_phy)) ||
447 nla_put_u32(msg, NL802154_ATTR_GENERATION,
448 cfg802154_rdev_list_generation))
449 goto nla_put_failure;
450
451 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
452 goto finish;
453
454 /* DUMP PHY PIB */
455
456 /* current channel settings */
457 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
458 rdev->wpan_phy.current_page) ||
459 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
460 rdev->wpan_phy.current_channel))
461 goto nla_put_failure;
462
0e665457
AA		 463 /* TODO remove this behaviour, we still keep support it for a while
464 * so users can change the behaviour to the new one.
465 */
ca20ce20
AA		 466 if (nl802154_send_wpan_phy_channels(rdev, msg))
467 goto nla_put_failure;
468
469 /* cca mode */
edea8f7c
AA		 470 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
471 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
472 rdev->wpan_phy.cca.mode))
ba2a9506 473 goto nla_put_failure;
edea8f7c
AA		 474
475 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
476 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
477 rdev->wpan_phy.cca.opt))
478 goto nla_put_failure;
479 }
ba2a9506
AA		 480 }
481
edea8f7c
AA		 482 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
483 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
484 rdev->wpan_phy.transmit_power))
485 goto nla_put_failure;
486 }
ca20ce20 487
e4390592
AA		 488 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
489 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
490 rdev->wpan_phy.cca_ed_level))
491 goto nla_put_failure;
492 }
493
0e665457
AA		 494 if (nl802154_put_capabilities(msg, rdev))
495 goto nla_put_failure;
496
ae0be8de 497 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
133be026
VB		 498 if (!nl_cmds)
499 goto nla_put_failure;
500
501 i = 0;
502#define CMD(op, n) \
503 do { \
504 if (rdev->ops->op) { \
505 i++; \
506 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
507 goto nla_put_failure; \
508 } \
509 } while (0)
510
511 CMD(add_virtual_intf, NEW_INTERFACE);
512 CMD(del_virtual_intf, DEL_INTERFACE);
513 CMD(set_channel, SET_CHANNEL);
514 CMD(set_pan_id, SET_PAN_ID);
515 CMD(set_short_addr, SET_SHORT_ADDR);
516 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
517 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
518 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
519 CMD(set_lbt_mode, SET_LBT_MODE);
c91208d8 520 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
133be026
VB		 521
522 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
523 CMD(set_tx_power, SET_TX_POWER);
524
525 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
526 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
527
528 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
529 CMD(set_cca_mode, SET_CCA_MODE);
530
531#undef CMD
532 nla_nest_end(msg, nl_cmds);
533
ca20ce20 534finish:
053c095a
JB		 535 genlmsg_end(msg, hdr);
536 return 0;
ca20ce20
AA		 537
538nla_put_failure:
539 genlmsg_cancel(msg, hdr);
540 return -EMSGSIZE;
541}
542
543struct nl802154_dump_wpan_phy_state {
544 s64 filter_wpan_phy;
545 long start;
546
547};
548
549static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
550 struct netlink_callback *cb,
551 struct nl802154_dump_wpan_phy_state *state)
552{
75cdbdd0
JP		 553 const struct genl_dumpit_info *info = genl_dumpit_info(cb);
554 struct nlattr **tb = info->attrs;
ca20ce20
AA		 555
556 if (tb[NL802154_ATTR_WPAN_PHY])
557 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
558 if (tb[NL802154_ATTR_WPAN_DEV])
559 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
560 if (tb[NL802154_ATTR_IFINDEX]) {
561 struct net_device *netdev;
562 struct cfg802154_registered_device *rdev;
563 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
564
ca20ce20
AA		 565 netdev = __dev_get_by_index(&init_net, ifidx);
566 if (!netdev)
567 return -ENODEV;
568 if (netdev->ieee802154_ptr) {
569 rdev = wpan_phy_to_rdev(
570 netdev->ieee802154_ptr->wpan_phy);
571 state->filter_wpan_phy = rdev->wpan_phy_idx;
572 }
573 }
574
575 return 0;
576}
577
578static int
579nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
580{
581 int idx = 0, ret;
582 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
583 struct cfg802154_registered_device *rdev;
584
585 rtnl_lock();
586 if (!state) {
587 state = kzalloc(sizeof(*state), GFP_KERNEL);
588 if (!state) {
589 rtnl_unlock();
590 return -ENOMEM;
591 }
592 state->filter_wpan_phy = -1;
593 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
594 if (ret) {
595 kfree(state);
596 rtnl_unlock();
597 return ret;
598 }
599 cb->args[0] = (long)state;
600 }
601
602 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 603 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
604 continue;
ca20ce20
AA		 605 if (++idx <= state->start)
606 continue;
607 if (state->filter_wpan_phy != -1 &&
608 state->filter_wpan_phy != rdev->wpan_phy_idx)
609 continue;
610 /* attempt to fit multiple wpan_phy data chunks into the skb */
611 ret = nl802154_send_wpan_phy(rdev,
612 NL802154_CMD_NEW_WPAN_PHY,
613 skb,
614 NETLINK_CB(cb->skb).portid,
615 cb->nlh->nlmsg_seq, NLM_F_MULTI);
616 if (ret < 0) {
617 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
618 !skb->len && cb->min_dump_alloc < 4096) {
619 cb->min_dump_alloc = 4096;
620 rtnl_unlock();
621 return 1;
622 }
623 idx--;
624 break;
625 }
626 break;
627 }
628 rtnl_unlock();
629
630 state->start = idx;
631
632 return skb->len;
633}
634
635static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
636{
637 kfree((void *)cb->args[0]);
638 return 0;
639}
640
641static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
642{
643 struct sk_buff *msg;
644 struct cfg802154_registered_device *rdev = info->user_ptr[0];
645
646 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
647 if (!msg)
648 return -ENOMEM;
649
650 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
651 info->snd_portid, info->snd_seq, 0) < 0) {
652 nlmsg_free(msg);
653 return -ENOBUFS;
654 }
655
656 return genlmsg_reply(msg, info);
657}
658
4b96aea0
AA		 659static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
660{
661 return (u64)wpan_dev->identifier |
662 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
663}
664
a26c5fd7
AA		 665#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
666#include <net/ieee802154_netdev.h>
667
668static int
669ieee802154_llsec_send_key_id(struct sk_buff *msg,
670 const struct ieee802154_llsec_key_id *desc)
671{
672 struct nlattr *nl_dev_addr;
673
674 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
675 return -ENOBUFS;
676
677 switch (desc->mode) {
678 case NL802154_KEY_ID_MODE_IMPLICIT:
ae0be8de
MK		 679 nl_dev_addr = nla_nest_start_noflag(msg,
680 NL802154_KEY_ID_ATTR_IMPLICIT);
a26c5fd7
AA		 681 if (!nl_dev_addr)
682 return -ENOBUFS;
683
684 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
685 desc->device_addr.pan_id) ||
686 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
687 desc->device_addr.mode))
688 return -ENOBUFS;
689
690 switch (desc->device_addr.mode) {
691 case NL802154_DEV_ADDR_SHORT:
692 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
693 desc->device_addr.short_addr))
694 return -ENOBUFS;
695 break;
696 case NL802154_DEV_ADDR_EXTENDED:
697 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
e7479122
ND		 698 desc->device_addr.extended_addr,
699 NL802154_DEV_ADDR_ATTR_PAD))
a26c5fd7
AA		 700 return -ENOBUFS;
701 break;
702 default:
703 /* userspace should handle unknown */
704 break;
705 }
706
707 nla_nest_end(msg, nl_dev_addr);
708 break;
709 case NL802154_KEY_ID_MODE_INDEX:
710 break;
711 case NL802154_KEY_ID_MODE_INDEX_SHORT:
712 /* TODO renmae short_source? */
713 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
714 desc->short_source))
715 return -ENOBUFS;
716 break;
717 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
718 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
e7479122
ND		 719 desc->extended_source,
720 NL802154_KEY_ID_ATTR_PAD))
a26c5fd7
AA		 721 return -ENOBUFS;
722 break;
723 default:
724 /* userspace should handle unknown */
725 break;
726 }
727
728 /* TODO key_id to key_idx ? Check naming */
729 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
730 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
731 return -ENOBUFS;
732 }
733
734 return 0;
735}
736
737static int nl802154_get_llsec_params(struct sk_buff *msg,
738 struct cfg802154_registered_device *rdev,
739 struct wpan_dev *wpan_dev)
740{
741 struct nlattr *nl_key_id;
742 struct ieee802154_llsec_params params;
743 int ret;
744
745 ret = rdev_get_llsec_params(rdev, wpan_dev, &params);
746 if (ret < 0)
747 return ret;
748
749 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
750 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
751 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
752 params.frame_counter))
753 return -ENOBUFS;
754
ae0be8de 755 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
a26c5fd7
AA		 756 if (!nl_key_id)
757 return -ENOBUFS;
758
759 ret = ieee802154_llsec_send_key_id(msg, &params.out_key);
760 if (ret < 0)
761 return ret;
762
763 nla_nest_end(msg, nl_key_id);
764
765 return 0;
766}
767#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
768
4b96aea0
AA		 769static int
770nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
771 struct cfg802154_registered_device *rdev,
772 struct wpan_dev *wpan_dev)
773{
774 struct net_device *dev = wpan_dev->netdev;
775 void *hdr;
776
777 hdr = nl802154hdr_put(msg, portid, seq, flags,
778 NL802154_CMD_NEW_INTERFACE);
779 if (!hdr)
780 return -1;
781
782 if (dev &&
783 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
784 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
785 goto nla_put_failure;
786
787 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
788 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
a558da09
ND		 789 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
790 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
4b96aea0
AA		 791 nla_put_u32(msg, NL802154_ATTR_GENERATION,
792 rdev->devlist_generation ^
793 (cfg802154_rdev_list_generation << 2)))
794 goto nla_put_failure;
795
796 /* address settings */
797 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
e7479122
ND		 798 wpan_dev->extended_addr,
799 NL802154_ATTR_PAD) ||
4b96aea0
AA		 800 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
801 wpan_dev->short_addr) ||
802 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
803 goto nla_put_failure;
804
805 /* ARET handling */
806 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
807 wpan_dev->frame_retries) ||
808 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
809 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
810 wpan_dev->csma_retries) ||
811 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
812 goto nla_put_failure;
813
814 /* listen before transmit */
815 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
816 goto nla_put_failure;
817
c91208d8
AA		 818 /* ackreq default behaviour */
819 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
820 goto nla_put_failure;
821
a26c5fd7 822#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1534efc7
AA		 823 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
824 goto out;
825
a26c5fd7
AA		 826 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
827 goto nla_put_failure;
1534efc7
AA		 828
829out:
a26c5fd7
AA		 830#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
831
053c095a
JB		 832 genlmsg_end(msg, hdr);
833 return 0;
4b96aea0
AA		 834
835nla_put_failure:
836 genlmsg_cancel(msg, hdr);
837 return -EMSGSIZE;
838}
839
840static int
841nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
842{
843 int wp_idx = 0;
844 int if_idx = 0;
845 int wp_start = cb->args[0];
846 int if_start = cb->args[1];
847 struct cfg802154_registered_device *rdev;
848 struct wpan_dev *wpan_dev;
849
850 rtnl_lock();
851 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
66e5c267
AA		 852 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
853 continue;
4b96aea0
AA		 854 if (wp_idx < wp_start) {
855 wp_idx++;
856 continue;
857 }
858 if_idx = 0;
859
860 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
861 if (if_idx < if_start) {
862 if_idx++;
863 continue;
864 }
865 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
866 cb->nlh->nlmsg_seq, NLM_F_MULTI,
867 rdev, wpan_dev) < 0) {
868 goto out;
869 }
870 if_idx++;
871 }
872
873 wp_idx++;
874 }
875out:
876 rtnl_unlock();
877
878 cb->args[0] = wp_idx;
879 cb->args[1] = if_idx;
880
881 return skb->len;
882}
883
884static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
885{
886 struct sk_buff *msg;
887 struct cfg802154_registered_device *rdev = info->user_ptr[0];
888 struct wpan_dev *wdev = info->user_ptr[1];
889
890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
891 if (!msg)
892 return -ENOMEM;
893
894 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
895 rdev, wdev) < 0) {
896 nlmsg_free(msg);
897 return -ENOBUFS;
898 }
899
900 return genlmsg_reply(msg, info);
901}
902
f3ea5e44
AA		 903static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
904{
905 struct cfg802154_registered_device *rdev = info->user_ptr[0];
906 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
0e57547e 907 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
f3ea5e44
AA		 908
909 /* TODO avoid failing a new interface
910 * creation due to pending removal?
911 */
912
913 if (!info->attrs[NL802154_ATTR_IFNAME])
914 return -EINVAL;
915
916 if (info->attrs[NL802154_ATTR_IFTYPE]) {
917 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
65318680
AA		 918 if (type > NL802154_IFTYPE_MAX ||
919 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
f3ea5e44
AA		 920 return -EINVAL;
921 }
922
0e57547e 923 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
1ee06ef1 924 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
0e57547e 925
f3ea5e44
AA		 926 if (!rdev->ops->add_virtual_intf)
927 return -EOPNOTSUPP;
928
929 return rdev_add_virtual_intf(rdev,
930 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
5b4a1039 931 NET_NAME_USER, type, extended_addr);
f3ea5e44
AA		 932}
933
b821ecd4
AA		 934static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
935{
936 struct cfg802154_registered_device *rdev = info->user_ptr[0];
937 struct wpan_dev *wpan_dev = info->user_ptr[1];
938
939 if (!rdev->ops->del_virtual_intf)
940 return -EOPNOTSUPP;
941
942 /* If we remove a wpan device without a netdev then clear
943 * user_ptr[1] so that nl802154_post_doit won't dereference it
944 * to check if it needs to do dev_put(). Otherwise it crashes
945 * since the wpan_dev has been freed, unlike with a netdev where
946 * we need the dev_put() for the netdev to really be freed.
947 */
948 if (!wpan_dev->netdev)
949 info->user_ptr[1] = NULL;
950
951 return rdev_del_virtual_intf(rdev, wpan_dev);
952}
953
ab0bd561
AA		 954static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
955{
956 struct cfg802154_registered_device *rdev = info->user_ptr[0];
957 u8 channel, page;
958
959 if (!info->attrs[NL802154_ATTR_PAGE] ||
960 !info->attrs[NL802154_ATTR_CHANNEL])
961 return -EINVAL;
962
963 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
964 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
965
966 /* check 802.15.4 constraints */
673692fa 967 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
72f655e4 968 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
ab0bd561
AA		 969 return -EINVAL;
970
971 return rdev_set_channel(rdev, page, channel);
972}
973
ba2a9506
AA		 974static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
975{
976 struct cfg802154_registered_device *rdev = info->user_ptr[0];
977 struct wpan_phy_cca cca;
978
fc4f8052 979 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
edea8f7c
AA		 980 return -EOPNOTSUPP;
981
ba2a9506
AA		 982 if (!info->attrs[NL802154_ATTR_CCA_MODE])
983 return -EINVAL;
984
985 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
986 /* checking 802.15.4 constraints */
fea3318d
AA		 987 if (cca.mode < NL802154_CCA_ENERGY ||
988 cca.mode > NL802154_CCA_ATTR_MAX ||
989 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
ba2a9506
AA		 990 return -EINVAL;
991
992 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
993 if (!info->attrs[NL802154_ATTR_CCA_OPT])
994 return -EINVAL;
995
996 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
fea3318d
AA		 997 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
998 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
ba2a9506
AA		 999 return -EINVAL;
1000 }
1001
1002 return rdev_set_cca_mode(rdev, &cca);
1003}
1004
b69644c1
AA		 1005static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1006{
1007 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1008 s32 ed_level;
1009 int i;
1010
1011 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1012 return -EOPNOTSUPP;
1013
1014 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1015 return -EINVAL;
1016
1017 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1018
1019 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1020 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1021 return rdev_set_cca_ed_level(rdev, ed_level);
1022 }
1023
1024 return -EINVAL;
1025}
1026
0f999b09
VB		 1027static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1028{
1029 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1030 s32 power;
1031 int i;
1032
1033 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1034 return -EOPNOTSUPP;
1035
1036 if (!info->attrs[NL802154_ATTR_TX_POWER])
1037 return -EINVAL;
1038
1039 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1040
1041 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1042 if (power == rdev->wpan_phy.supported.tx_powers[i])
1043 return rdev_set_tx_power(rdev, power);
1044 }
1045
1046 return -EINVAL;
1047}
1048
702bf371
AA		 1049static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1050{
1051 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1052 struct net_device *dev = info->user_ptr[1];
1053 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1054 __le16 pan_id;
702bf371
AA		 1055
1056 /* conflict here while tx/rx calls */
1057 if (netif_running(dev))
1058 return -EBUSY;
1059
9e3b71f3
AA		 1060 if (wpan_dev->lowpan_dev) {
1061 if (netif_running(wpan_dev->lowpan_dev))
1062 return -EBUSY;
1063 }
1064
702bf371 1065 /* don't change address fields on monitor */
0cf0879a
AA		 1066 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1067 !info->attrs[NL802154_ATTR_PAN_ID])
702bf371
AA		 1068 return -EINVAL;
1069
ee7b9053 1070 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
702bf371 1071
673692fa
AA		 1072 /* TODO
1073 * I am not sure about to check here on broadcast pan_id.
1074 * Broadcast is a valid setting, comment from 802.15.4:
1075 * If this value is 0xffff, the device is not associated.
1076 *
1077 * This could useful to simple deassociate an device.
1078 */
1079 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1080 return -EINVAL;
1081
702bf371
AA		 1082 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1083}
1084
9830c62a
AA		 1085static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1086{
1087 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1088 struct net_device *dev = info->user_ptr[1];
1089 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
ee7b9053 1090 __le16 short_addr;
9830c62a
AA		 1091
1092 /* conflict here while tx/rx calls */
1093 if (netif_running(dev))
1094 return -EBUSY;
1095
9e3b71f3
AA		 1096 if (wpan_dev->lowpan_dev) {
1097 if (netif_running(wpan_dev->lowpan_dev))
1098 return -EBUSY;
1099 }
1100
9830c62a 1101 /* don't change address fields on monitor */
0cf0879a
AA		 1102 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1103 !info->attrs[NL802154_ATTR_SHORT_ADDR])
9830c62a
AA		 1104 return -EINVAL;
1105
ee7b9053 1106 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
9830c62a 1107
673692fa
AA		 1108 /* TODO
1109 * I am not sure about to check here on broadcast short_addr.
1110 * Broadcast is a valid setting, comment from 802.15.4:
1111 * A value of 0xfffe indicates that the device has
1112 * associated but has not been allocated an address. A
1113 * value of 0xffff indicates that the device does not
1114 * have a short address.
1115 *
1116 * I think we should allow to set these settings but
1117 * don't allow to allow socket communication with it.
1118 */
1119 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1120 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1121 return -EINVAL;
1122
9830c62a
AA		 1123 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1124}
1125
656a999e
AA		 1126static int
1127nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1128{
1129 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1130 struct net_device *dev = info->user_ptr[1];
1131 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1132 u8 min_be, max_be;
1133
1134 /* should be set on netif open inside phy settings */
1135 if (netif_running(dev))
1136 return -EBUSY;
1137
1138 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1139 !info->attrs[NL802154_ATTR_MAX_BE])
1140 return -EINVAL;
1141
1142 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1143 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1144
1145 /* check 802.15.4 constraints */
fea3318d
AA		 1146 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1147 min_be > rdev->wpan_phy.supported.max_minbe ||
1148 max_be < rdev->wpan_phy.supported.min_maxbe ||
1149 max_be > rdev->wpan_phy.supported.max_maxbe ||
1150 min_be > max_be)
656a999e
AA		 1151 return -EINVAL;
1152
1153 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1154}
1155
a01ba765
AA		 1156static int
1157nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1158{
1159 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1160 struct net_device *dev = info->user_ptr[1];
1161 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1162 u8 max_csma_backoffs;
1163
1164 /* conflict here while other running iface settings */
1165 if (netif_running(dev))
1166 return -EBUSY;
1167
1168 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1169 return -EINVAL;
1170
1171 max_csma_backoffs = nla_get_u8(
1172 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1173
1174 /* check 802.15.4 constraints */
fea3318d
AA		 1175 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1176 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
a01ba765
AA		 1177 return -EINVAL;
1178
1179 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1180}
1181
17a3a46b
AA		 1182static int
1183nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1184{
1185 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1186 struct net_device *dev = info->user_ptr[1];
1187 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1188 s8 max_frame_retries;
1189
1190 if (netif_running(dev))
1191 return -EBUSY;
1192
1193 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1194 return -EINVAL;
1195
1196 max_frame_retries = nla_get_s8(
1197 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1198
1199 /* check 802.15.4 constraints */
fea3318d
AA		 1200 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1201 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
17a3a46b
AA		 1202 return -EINVAL;
1203
1204 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1205}
1206
c8937a1d
AA		 1207static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1208{
1209 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1210 struct net_device *dev = info->user_ptr[1];
1211 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1212 int mode;
c8937a1d
AA		 1213
1214 if (netif_running(dev))
1215 return -EBUSY;
1216
1217 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1218 return -EINVAL;
1219
4e1795de
SS		 1220 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1221
1222 if (mode != 0 && mode != 1)
1223 return -EINVAL;
1224
fea3318d
AA		 1225 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1226 return -EINVAL;
1227
c8937a1d
AA		 1228 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1229}
1230
c91208d8
AA		 1231static int
1232nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1233{
1234 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1235 struct net_device *dev = info->user_ptr[1];
1236 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
4e1795de 1237 int ackreq;
c91208d8
AA		 1238
1239 if (netif_running(dev))
1240 return -EBUSY;
1241
1242 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1243 return -EINVAL;
1244
4e1795de
SS		 1245 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1246
1247 if (ackreq != 0 && ackreq != 1)
1248 return -EINVAL;
1249
c91208d8
AA		 1250 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1251}
1252
66e5c267
AA		 1253static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1254{
1255 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1256 struct net *net;
1257 int err;
1258
1259 if (info->attrs[NL802154_ATTR_PID]) {
1260 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1261
1262 net = get_net_ns_by_pid(pid);
1263 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1264 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1265
1266 net = get_net_ns_by_fd(fd);
1267 } else {
1268 return -EINVAL;
1269 }
1270
1271 if (IS_ERR(net))
1272 return PTR_ERR(net);
1273
1274 err = 0;
1275
1276 /* check if anything to do */
1277 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1278 err = cfg802154_switch_netns(rdev, net);
1279
1280 put_net(net);
1281 return err;
1282}
1283
a26c5fd7
AA		 1284#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1285static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1286 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1287 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1288 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1289 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1290};
79fe1a2a 1291
a26c5fd7
AA		 1292static int
1293ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1294 struct ieee802154_addr *addr)
79fe1a2a 1295{
a26c5fd7 1296 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
79fe1a2a 1297
8cb08174 1298 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
a26c5fd7 1299 return -EINVAL;
79fe1a2a 1300
9fdd0491 1301 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE])
a26c5fd7 1302 return -EINVAL;
79fe1a2a 1303
a26c5fd7
AA		 1304 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1305 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1306 switch (addr->mode) {
1307 case NL802154_DEV_ADDR_SHORT:
9fdd0491
DR		 1308 if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT])
1309 return -EINVAL;
a26c5fd7
AA		 1310 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1311 break;
1312 case NL802154_DEV_ADDR_EXTENDED:
9fdd0491
DR		 1313 if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])
1314 return -EINVAL;
a26c5fd7
AA		 1315 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1316 break;
1317 default:
1318 return -EINVAL;
1319 }
79fe1a2a 1320
a26c5fd7
AA		 1321 return 0;
1322}
79fe1a2a 1323
a26c5fd7
AA		 1324static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1325 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1326 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1327 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1328 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1329 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1330};
79fe1a2a 1331
a26c5fd7
AA		 1332static int
1333ieee802154_llsec_parse_key_id(struct nlattr *nla,
1334 struct ieee802154_llsec_key_id *desc)
1335{
1336 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
79fe1a2a 1337
8cb08174 1338 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL))
a26c5fd7 1339 return -EINVAL;
79fe1a2a 1340
a26c5fd7
AA		 1341 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1342 return -EINVAL;
1343
1344 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1345 switch (desc->mode) {
1346 case NL802154_KEY_ID_MODE_IMPLICIT:
1347 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1348 return -EINVAL;
1349
1350 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1351 &desc->device_addr) < 0)
1352 return -EINVAL;
1353 break;
1354 case NL802154_KEY_ID_MODE_INDEX:
1355 break;
1356 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1357 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1358 return -EINVAL;
1359
1360 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1361 break;
1362 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1363 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1364 return -EINVAL;
1365
1366 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1367 break;
1368 default:
1369 return -EINVAL;
1370 }
1371
1372 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1373 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1374 return -EINVAL;
1375
1376 /* TODO change id to idx */
1377 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
79fe1a2a
AA		 1378 }
1379
1380 return 0;
1381}
1382
a26c5fd7
AA		 1383static int nl802154_set_llsec_params(struct sk_buff *skb,
1384 struct genl_info *info)
79fe1a2a 1385{
a26c5fd7
AA		 1386 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1387 struct net_device *dev = info->user_ptr[1];
1388 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1389 struct ieee802154_llsec_params params;
1390 u32 changed = 0;
1391 int ret;
79fe1a2a 1392
88c17855
AA		 1393 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1394 return -EOPNOTSUPP;
1395
a26c5fd7
AA		 1396 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1397 u8 enabled;
1398
1399 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1400 if (enabled != 0 && enabled != 1)
1401 return -EINVAL;
1402
1403 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1404 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1405 }
1406
1407 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1408 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1409 &params.out_key);
1410 if (ret < 0)
1411 return ret;
1412
1413 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1414 }
1415
1416 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1417 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1418 if (params.out_level > NL802154_SECLEVEL_MAX)
1419 return -EINVAL;
1420
1421 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1422 }
1423
1424 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1425 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1426 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1427 }
1428
1429 return rdev_set_llsec_params(rdev, wpan_dev, &params, changed);
1430}
1431
1432static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1433 u32 seq, int flags,
1434 struct cfg802154_registered_device *rdev,
1435 struct net_device *dev,
1436 const struct ieee802154_llsec_key_entry *key)
1437{
1438 void *hdr;
1439 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1440 struct nlattr *nl_key, *nl_key_id;
1441
1442 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1443 if (!hdr)
1444 return -1;
1445
1446 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1447 goto nla_put_failure;
1448
ae0be8de 1449 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
a26c5fd7
AA		 1450 if (!nl_key)
1451 goto nla_put_failure;
1452
ae0be8de 1453 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
a26c5fd7
AA		 1454 if (!nl_key_id)
1455 goto nla_put_failure;
1456
1457 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1458 goto nla_put_failure;
1459
1460 nla_nest_end(msg, nl_key_id);
1461
1462 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1463 key->key->frame_types))
1464 goto nla_put_failure;
1465
1466 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1467 /* TODO for each nested */
1468 memset(commands, 0, sizeof(commands));
1469 commands[7] = key->key->cmd_frame_ids;
1470 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1471 sizeof(commands), commands))
1472 goto nla_put_failure;
1473 }
1474
1475 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1476 key->key->key))
1477 goto nla_put_failure;
1478
1479 nla_nest_end(msg, nl_key);
1480 genlmsg_end(msg, hdr);
1481
1482 return 0;
1483
1484nla_put_failure:
1485 genlmsg_cancel(msg, hdr);
1486 return -EMSGSIZE;
1487}
1488
1489static int
1490nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1491{
1492 struct cfg802154_registered_device *rdev = NULL;
1493 struct ieee802154_llsec_key_entry *key;
1494 struct ieee802154_llsec_table *table;
1495 struct wpan_dev *wpan_dev;
1496 int err;
1497
1498 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1499 if (err)
1500 return err;
1501
fb3c5cdf
AA		 1502 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1503 err = skb->len;
1504 goto out_err;
1505 }
1506
a26c5fd7
AA		 1507 if (!wpan_dev->netdev) {
1508 err = -EINVAL;
1509 goto out_err;
1510 }
1511
1512 rdev_lock_llsec_table(rdev, wpan_dev);
1513 rdev_get_llsec_table(rdev, wpan_dev, &table);
1514
1515 /* TODO make it like station dump */
1516 if (cb->args[2])
1517 goto out;
1518
1519 list_for_each_entry(key, &table->keys, list) {
1520 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1521 NETLINK_CB(cb->skb).portid,
1522 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1523 rdev, wpan_dev->netdev, key) < 0) {
1524 /* TODO */
1525 err = -EIO;
1526 rdev_unlock_llsec_table(rdev, wpan_dev);
1527 goto out_err;
79fe1a2a
AA		 1528 }
1529 }
1530
a26c5fd7
AA		 1531 cb->args[2] = 1;
1532
1533out:
1534 rdev_unlock_llsec_table(rdev, wpan_dev);
1535 err = skb->len;
1536out_err:
1537 nl802154_finish_wpan_dev_dump(rdev);
1538
1539 return err;
79fe1a2a
AA		 1540}
1541
a26c5fd7
AA		 1542static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1543 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1544 /* TODO handle it as for_each_nested and NLA_FLAG? */
1545 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1546 /* TODO handle it as for_each_nested, not static array? */
1547 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1548 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1549};
1550
1551static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1552{
1553 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1554 struct net_device *dev = info->user_ptr[1];
1555 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1556 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1557 struct ieee802154_llsec_key key = { };
1558 struct ieee802154_llsec_key_id id = { };
1559 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1560
08470c54
AA		 1561 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1562 return -EOPNOTSUPP;
1563
20d5fe2d
AA		 1564 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1565 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1566 return -EINVAL;
1567
1568 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1569 !attrs[NL802154_KEY_ATTR_BYTES])
aa655562 1570 return -EINVAL;
a26c5fd7
AA		 1571
1572 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1573 return -ENOBUFS;
1574
1575 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1576 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1577 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1578 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1579 return -EINVAL;
1580
1581 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1582 /* TODO for each nested */
1583 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1584 NL802154_CMD_FRAME_NR_IDS / 8);
1585
1586 /* TODO understand the -EINVAL logic here? last condition */
1587 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1588 commands[4] || commands[5] || commands[6] ||
1589 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1590 return -EINVAL;
1591
1592 key.cmd_frame_ids = commands[7];
1593 } else {
1594 key.cmd_frame_ids = 0;
1595 }
1596
1597 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1598
1599 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1600 return -ENOBUFS;
1601
1602 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1603}
1604
1605static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1606{
1607 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1608 struct net_device *dev = info->user_ptr[1];
1609 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1610 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1611 struct ieee802154_llsec_key_id id;
1612
b6e29495
AA		 1613 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1614 return -EOPNOTSUPP;
1615
37feaaf5
AA		 1616 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1617 nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
a26c5fd7
AA		 1618 return -EINVAL;
1619
1620 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1621 return -ENOBUFS;
1622
1623 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1624}
1625
1626static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1627 u32 seq, int flags,
1628 struct cfg802154_registered_device *rdev,
1629 struct net_device *dev,
1630 const struct ieee802154_llsec_device *dev_desc)
1631{
1632 void *hdr;
1633 struct nlattr *nl_device;
1634
1635 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1636 if (!hdr)
1637 return -1;
1638
1639 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1640 goto nla_put_failure;
1641
ae0be8de 1642 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
a26c5fd7
AA		 1643 if (!nl_device)
1644 goto nla_put_failure;
1645
1646 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1647 dev_desc->frame_counter) ||
1648 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1649 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1650 dev_desc->short_addr) ||
1651 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
e7479122 1652 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
a26c5fd7
AA		 1653 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1654 dev_desc->seclevel_exempt) ||
1655 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1656 goto nla_put_failure;
1657
1658 nla_nest_end(msg, nl_device);
1659 genlmsg_end(msg, hdr);
1660
1661 return 0;
1662
1663nla_put_failure:
1664 genlmsg_cancel(msg, hdr);
1665 return -EMSGSIZE;
1666}
1667
1668static int
1669nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1670{
1671 struct cfg802154_registered_device *rdev = NULL;
1672 struct ieee802154_llsec_device *dev;
1673 struct ieee802154_llsec_table *table;
1674 struct wpan_dev *wpan_dev;
1675 int err;
1676
1677 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1678 if (err)
1679 return err;
1680
5582d641
AA		 1681 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1682 err = skb->len;
1683 goto out_err;
1684 }
1685
a26c5fd7
AA		 1686 if (!wpan_dev->netdev) {
1687 err = -EINVAL;
1688 goto out_err;
1689 }
1690
1691 rdev_lock_llsec_table(rdev, wpan_dev);
1692 rdev_get_llsec_table(rdev, wpan_dev, &table);
1693
1694 /* TODO make it like station dump */
1695 if (cb->args[2])
1696 goto out;
1697
1698 list_for_each_entry(dev, &table->devices, list) {
1699 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1700 NETLINK_CB(cb->skb).portid,
1701 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1702 rdev, wpan_dev->netdev, dev) < 0) {
1703 /* TODO */
1704 err = -EIO;
1705 rdev_unlock_llsec_table(rdev, wpan_dev);
1706 goto out_err;
1707 }
1708 }
1709
1710 cb->args[2] = 1;
1711
1712out:
1713 rdev_unlock_llsec_table(rdev, wpan_dev);
1714 err = skb->len;
1715out_err:
1716 nl802154_finish_wpan_dev_dump(rdev);
1717
1718 return err;
1719}
1720
1721static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1722 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1723 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1724 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1725 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1726 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1727 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1728};
1729
1730static int
1731ieee802154_llsec_parse_device(struct nlattr *nla,
1732 struct ieee802154_llsec_device *dev)
1733{
1734 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1735
8cb08174 1736 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
a26c5fd7
AA		 1737 return -EINVAL;
1738
1739 memset(dev, 0, sizeof(*dev));
1740
1741 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1742 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1743 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1744 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1745 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1746 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1747 return -EINVAL;
1748
1749 /* TODO be32 */
1750 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1751 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1752 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1753 /* TODO rename hwaddr to extended_addr */
1754 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1755 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1756 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1757
1758 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1759 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1760 return -EINVAL;
1761
1762 return 0;
1763}
1764
1765static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1766{
1767 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1768 struct net_device *dev = info->user_ptr[1];
1769 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1770 struct ieee802154_llsec_device dev_desc;
1771
5303f956
AA		 1772 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1773 return -EOPNOTSUPP;
1774
a26c5fd7
AA		 1775 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1776 &dev_desc) < 0)
1777 return -EINVAL;
1778
1779 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1780}
1781
1782static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1783{
1784 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1785 struct net_device *dev = info->user_ptr[1];
1786 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1787 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1788 __le64 extended_addr;
1789
ad8f9de1
AA		 1790 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1791 return -EOPNOTSUPP;
1792
3d1eac2f
AA		 1793 if (!info->attrs[NL802154_ATTR_SEC_DEVICE] ||
1794 nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
a26c5fd7
AA		 1795 return -EINVAL;
1796
1797 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1798 return -EINVAL;
1799
1800 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1801 return rdev_del_device(rdev, wpan_dev, extended_addr);
1802}
1803
1804static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1805 u32 seq, int flags,
1806 struct cfg802154_registered_device *rdev,
1807 struct net_device *dev, __le64 extended_addr,
1808 const struct ieee802154_llsec_device_key *devkey)
1809{
1810 void *hdr;
1811 struct nlattr *nl_devkey, *nl_key_id;
1812
1813 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1814 if (!hdr)
1815 return -1;
1816
1817 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1818 goto nla_put_failure;
1819
ae0be8de 1820 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
a26c5fd7
AA		 1821 if (!nl_devkey)
1822 goto nla_put_failure;
1823
1824 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
e7479122 1825 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
a26c5fd7
AA		 1826 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1827 devkey->frame_counter))
1828 goto nla_put_failure;
1829
ae0be8de 1830 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
a26c5fd7
AA		 1831 if (!nl_key_id)
1832 goto nla_put_failure;
1833
1834 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1835 goto nla_put_failure;
1836
1837 nla_nest_end(msg, nl_key_id);
1838 nla_nest_end(msg, nl_devkey);
1839 genlmsg_end(msg, hdr);
1840
1841 return 0;
1842
1843nla_put_failure:
1844 genlmsg_cancel(msg, hdr);
1845 return -EMSGSIZE;
1846}
1847
1848static int
1849nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1850{
1851 struct cfg802154_registered_device *rdev = NULL;
1852 struct ieee802154_llsec_device_key *kpos;
1853 struct ieee802154_llsec_device *dpos;
1854 struct ieee802154_llsec_table *table;
1855 struct wpan_dev *wpan_dev;
1856 int err;
1857
1858 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1859 if (err)
1860 return err;
1861
080d1a57
AA		 1862 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1863 err = skb->len;
1864 goto out_err;
1865 }
1866
a26c5fd7
AA		 1867 if (!wpan_dev->netdev) {
1868 err = -EINVAL;
1869 goto out_err;
1870 }
1871
1872 rdev_lock_llsec_table(rdev, wpan_dev);
1873 rdev_get_llsec_table(rdev, wpan_dev, &table);
1874
1875 /* TODO make it like station dump */
1876 if (cb->args[2])
1877 goto out;
1878
1879 /* TODO look if remove devkey and do some nested attribute */
1880 list_for_each_entry(dpos, &table->devices, list) {
1881 list_for_each_entry(kpos, &dpos->keys, list) {
1882 if (nl802154_send_devkey(skb,
1883 NL802154_CMD_NEW_SEC_LEVEL,
1884 NETLINK_CB(cb->skb).portid,
1885 cb->nlh->nlmsg_seq,
1886 NLM_F_MULTI, rdev,
1887 wpan_dev->netdev,
1888 dpos->hwaddr,
1889 kpos) < 0) {
1890 /* TODO */
1891 err = -EIO;
1892 rdev_unlock_llsec_table(rdev, wpan_dev);
1893 goto out_err;
1894 }
1895 }
1896 }
1897
1898 cb->args[2] = 1;
1899
1900out:
1901 rdev_unlock_llsec_table(rdev, wpan_dev);
1902 err = skb->len;
1903out_err:
1904 nl802154_finish_wpan_dev_dump(rdev);
1905
1906 return err;
1907}
1908
1909static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1910 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1911 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1912 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1913};
1914
1915static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1916{
1917 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1918 struct net_device *dev = info->user_ptr[1];
1919 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1920 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1921 struct ieee802154_llsec_device_key key;
1922 __le64 extended_addr;
1923
a347b3b3
AA		 1924 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1925 return -EOPNOTSUPP;
1926
a26c5fd7 1927 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
8cb08174 1928 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
a26c5fd7
AA		 1929 return -EINVAL;
1930
1931 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1932 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1933 return -EINVAL;
1934
1935 /* TODO change key.id ? */
1936 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1937 &key.key_id) < 0)
1938 return -ENOBUFS;
1939
1940 /* TODO be32 */
1941 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1942 /* TODO change naming hwaddr -> extended_addr
1943 * check unique identifier short+pan OR extended_addr
1944 */
1945 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1946 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1947}
1948
1949static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1950{
1951 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1952 struct net_device *dev = info->user_ptr[1];
1953 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1954 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1955 struct ieee802154_llsec_device_key key;
1956 __le64 extended_addr;
1957
6fb80453
AA		 1958 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1959 return -EOPNOTSUPP;
1960
27c74686
AA		 1961 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1962 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
a26c5fd7
AA		 1963 return -EINVAL;
1964
1965 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1966 return -EINVAL;
1967
1968 /* TODO change key.id ? */
1969 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1970 &key.key_id) < 0)
1971 return -ENOBUFS;
1972
1973 /* TODO change naming hwaddr -> extended_addr
1974 * check unique identifier short+pan OR extended_addr
1975 */
1976 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1977 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1978}
1979
1980static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1981 u32 seq, int flags,
1982 struct cfg802154_registered_device *rdev,
1983 struct net_device *dev,
1984 const struct ieee802154_llsec_seclevel *sl)
1985{
1986 void *hdr;
1987 struct nlattr *nl_seclevel;
1988
1989 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1990 if (!hdr)
1991 return -1;
1992
1993 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1994 goto nla_put_failure;
1995
ae0be8de 1996 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
a26c5fd7
AA		 1997 if (!nl_seclevel)
1998 goto nla_put_failure;
1999
2000 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
2001 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
2002 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
2003 sl->device_override))
2004 goto nla_put_failure;
2005
2006 if (sl->frame_type == NL802154_FRAME_CMD) {
2007 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
2008 sl->cmd_frame_id))
2009 goto nla_put_failure;
2010 }
2011
2012 nla_nest_end(msg, nl_seclevel);
2013 genlmsg_end(msg, hdr);
2014
2015 return 0;
2016
2017nla_put_failure:
2018 genlmsg_cancel(msg, hdr);
2019 return -EMSGSIZE;
2020}
2021
2022static int
2023nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2024{
2025 struct cfg802154_registered_device *rdev = NULL;
2026 struct ieee802154_llsec_seclevel *sl;
2027 struct ieee802154_llsec_table *table;
2028 struct wpan_dev *wpan_dev;
2029 int err;
2030
2031 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2032 if (err)
2033 return err;
2034
4c9b4f55
AA		 2035 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
2036 err = skb->len;
2037 goto out_err;
2038 }
2039
a26c5fd7
AA		 2040 if (!wpan_dev->netdev) {
2041 err = -EINVAL;
2042 goto out_err;
2043 }
2044
2045 rdev_lock_llsec_table(rdev, wpan_dev);
2046 rdev_get_llsec_table(rdev, wpan_dev, &table);
2047
2048 /* TODO make it like station dump */
2049 if (cb->args[2])
2050 goto out;
2051
2052 list_for_each_entry(sl, &table->security_levels, list) {
2053 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2054 NETLINK_CB(cb->skb).portid,
2055 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2056 rdev, wpan_dev->netdev, sl) < 0) {
2057 /* TODO */
2058 err = -EIO;
2059 rdev_unlock_llsec_table(rdev, wpan_dev);
2060 goto out_err;
2061 }
2062 }
2063
2064 cb->args[2] = 1;
2065
2066out:
2067 rdev_unlock_llsec_table(rdev, wpan_dev);
2068 err = skb->len;
2069out_err:
2070 nl802154_finish_wpan_dev_dump(rdev);
2071
2072 return err;
2073}
2074
2075static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2076 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2077 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2078 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2079 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2080};
2081
2082static int
2083llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2084{
2085 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2086
8cb08174 2087 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
a26c5fd7
AA		 2088 return -EINVAL;
2089
2090 memset(sl, 0, sizeof(*sl));
2091
2092 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2093 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2094 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2095 return -EINVAL;
2096
2097 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2098 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2099 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2100 if (sl->frame_type > NL802154_FRAME_MAX ||
2101 (sl->device_override != 0 && sl->device_override != 1))
2102 return -EINVAL;
2103
2104 if (sl->frame_type == NL802154_FRAME_CMD) {
2105 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2106 return -EINVAL;
2107
2108 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2109 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2110 return -EINVAL;
2111 }
2112
2113 return 0;
2114}
2115
2116static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2117 struct genl_info *info)
2118{
2119 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2120 struct net_device *dev = info->user_ptr[1];
2121 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2122 struct ieee802154_llsec_seclevel sl;
2123
9ec87e32
AA		 2124 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2125 return -EOPNOTSUPP;
2126
a26c5fd7
AA		 2127 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2128 &sl) < 0)
2129 return -EINVAL;
2130
2131 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2132}
2133
2134static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2135 struct genl_info *info)
2136{
2137 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2138 struct net_device *dev = info->user_ptr[1];
2139 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2140 struct ieee802154_llsec_seclevel sl;
2141
9dde1309
AA		 2142 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2143 return -EOPNOTSUPP;
2144
a26c5fd7
AA		 2145 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2146 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2147 &sl) < 0)
2148 return -EINVAL;
2149
2150 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2151}
2152#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2153
2154#define NL802154_FLAG_NEED_WPAN_PHY 0x01
2155#define NL802154_FLAG_NEED_NETDEV 0x02
2156#define NL802154_FLAG_NEED_RTNL 0x04
2157#define NL802154_FLAG_CHECK_NETDEV_UP 0x08
a26c5fd7 2158#define NL802154_FLAG_NEED_WPAN_DEV 0x10
a26c5fd7
AA		 2159
2160static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2161 struct genl_info *info)
2162{
2163 struct cfg802154_registered_device *rdev;
2164 struct wpan_dev *wpan_dev;
2165 struct net_device *dev;
2166 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2167
2168 if (rtnl)
2169 rtnl_lock();
2170
2171 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2172 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2173 if (IS_ERR(rdev)) {
2174 if (rtnl)
2175 rtnl_unlock();
2176 return PTR_ERR(rdev);
2177 }
2178 info->user_ptr[0] = rdev;
2179 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2180 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2181 ASSERT_RTNL();
2182 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2183 info->attrs);
2184 if (IS_ERR(wpan_dev)) {
2185 if (rtnl)
2186 rtnl_unlock();
2187 return PTR_ERR(wpan_dev);
2188 }
2189
2190 dev = wpan_dev->netdev;
2191 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2192
2193 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2194 if (!dev) {
2195 if (rtnl)
2196 rtnl_unlock();
2197 return -EINVAL;
2198 }
2199
2200 info->user_ptr[1] = dev;
2201 } else {
2202 info->user_ptr[1] = wpan_dev;
2203 }
2204
2205 if (dev) {
2206 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2207 !netif_running(dev)) {
2208 if (rtnl)
2209 rtnl_unlock();
2210 return -ENETDOWN;
2211 }
2212
2213 dev_hold(dev);
2214 }
2215
2216 info->user_ptr[0] = rdev;
2217 }
2218
2219 return 0;
2220}
2221
2222static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2223 struct genl_info *info)
2224{
2225 if (info->user_ptr[1]) {
2226 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2227 struct wpan_dev *wpan_dev = info->user_ptr[1];
2228
1160dfa1 2229 dev_put(wpan_dev->netdev);
a26c5fd7
AA		 2230 } else {
2231 dev_put(info->user_ptr[1]);
2232 }
2233 }
2234
2235 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2236 rtnl_unlock();
2237}
2238
2239static const struct genl_ops nl802154_ops[] = {
2240 {
2241 .cmd = NL802154_CMD_GET_WPAN_PHY,
75cdbdd0
JP		 2242 .validate = GENL_DONT_VALIDATE_STRICT |
2243 GENL_DONT_VALIDATE_DUMP_STRICT,
a26c5fd7
AA		 2244 .doit = nl802154_get_wpan_phy,
2245 .dumpit = nl802154_dump_wpan_phy,
2246 .done = nl802154_dump_wpan_phy_done,
a26c5fd7
AA		 2247 /* can be retrieved by unprivileged users */
2248 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2249 NL802154_FLAG_NEED_RTNL,
2250 },
2251 {
2252 .cmd = NL802154_CMD_GET_INTERFACE,
ef6243ac 2253 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2254 .doit = nl802154_get_interface,
2255 .dumpit = nl802154_dump_interface,
a26c5fd7
AA		 2256 /* can be retrieved by unprivileged users */
2257 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2258 NL802154_FLAG_NEED_RTNL,
2259 },
2260 {
2261 .cmd = NL802154_CMD_NEW_INTERFACE,
ef6243ac 2262 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2263 .doit = nl802154_new_interface,
a26c5fd7
AA		 2264 .flags = GENL_ADMIN_PERM,
2265 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
f3ea5e44
AA		 2266 NL802154_FLAG_NEED_RTNL,
2267 },
b821ecd4
AA		 2268 {
2269 .cmd = NL802154_CMD_DEL_INTERFACE,
ef6243ac 2270 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b821ecd4 2271 .doit = nl802154_del_interface,
b821ecd4
AA		 2272 .flags = GENL_ADMIN_PERM,
2273 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2274 NL802154_FLAG_NEED_RTNL,
2275 },
ab0bd561
AA		 2276 {
2277 .cmd = NL802154_CMD_SET_CHANNEL,
ef6243ac 2278 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ab0bd561 2279 .doit = nl802154_set_channel,
ab0bd561
AA		 2280 .flags = GENL_ADMIN_PERM,
2281 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2282 NL802154_FLAG_NEED_RTNL,
2283 },
ba2a9506
AA		 2284 {
2285 .cmd = NL802154_CMD_SET_CCA_MODE,
ef6243ac 2286 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
ba2a9506 2287 .doit = nl802154_set_cca_mode,
ba2a9506
AA		 2288 .flags = GENL_ADMIN_PERM,
2289 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2290 NL802154_FLAG_NEED_RTNL,
2291 },
b69644c1
AA		 2292 {
2293 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
ef6243ac 2294 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
b69644c1 2295 .doit = nl802154_set_cca_ed_level,
b69644c1
AA		 2296 .flags = GENL_ADMIN_PERM,
2297 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2298 NL802154_FLAG_NEED_RTNL,
2299 },
0f999b09
VB		 2300 {
2301 .cmd = NL802154_CMD_SET_TX_POWER,
ef6243ac 2302 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
0f999b09 2303 .doit = nl802154_set_tx_power,
0f999b09 2304 .flags = GENL_ADMIN_PERM,
66e5c267
AA		 2305 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2306 NL802154_FLAG_NEED_RTNL,
2307 },
2308 {
2309 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
ef6243ac 2310 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
66e5c267 2311 .doit = nl802154_wpan_phy_netns,
66e5c267 2312 .flags = GENL_ADMIN_PERM,
0f999b09
VB		 2313 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2314 NL802154_FLAG_NEED_RTNL,
2315 },
702bf371
AA		 2316 {
2317 .cmd = NL802154_CMD_SET_PAN_ID,
ef6243ac 2318 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
702bf371 2319 .doit = nl802154_set_pan_id,
702bf371
AA		 2320 .flags = GENL_ADMIN_PERM,
2321 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2322 NL802154_FLAG_NEED_RTNL,
2323 },
9830c62a
AA		 2324 {
2325 .cmd = NL802154_CMD_SET_SHORT_ADDR,
ef6243ac 2326 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
9830c62a 2327 .doit = nl802154_set_short_addr,
9830c62a
AA		 2328 .flags = GENL_ADMIN_PERM,
2329 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2330 NL802154_FLAG_NEED_RTNL,
2331 },
656a999e
AA		 2332 {
2333 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
ef6243ac 2334 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
656a999e 2335 .doit = nl802154_set_backoff_exponent,
656a999e
AA		 2336 .flags = GENL_ADMIN_PERM,
2337 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2338 NL802154_FLAG_NEED_RTNL,
2339 },
a01ba765
AA		 2340 {
2341 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
ef6243ac 2342 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a01ba765 2343 .doit = nl802154_set_max_csma_backoffs,
a01ba765
AA		 2344 .flags = GENL_ADMIN_PERM,
2345 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2346 NL802154_FLAG_NEED_RTNL,
2347 },
17a3a46b
AA		 2348 {
2349 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
ef6243ac 2350 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
17a3a46b 2351 .doit = nl802154_set_max_frame_retries,
17a3a46b
AA		 2352 .flags = GENL_ADMIN_PERM,
2353 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2354 NL802154_FLAG_NEED_RTNL,
2355 },
c8937a1d
AA		 2356 {
2357 .cmd = NL802154_CMD_SET_LBT_MODE,
ef6243ac 2358 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c8937a1d 2359 .doit = nl802154_set_lbt_mode,
c8937a1d
AA		 2360 .flags = GENL_ADMIN_PERM,
2361 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2362 NL802154_FLAG_NEED_RTNL,
2363 },
c91208d8
AA		 2364 {
2365 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
ef6243ac 2366 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
c91208d8 2367 .doit = nl802154_set_ackreq_default,
c91208d8
AA		 2368 .flags = GENL_ADMIN_PERM,
2369 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2370 NL802154_FLAG_NEED_RTNL,
2371 },
a26c5fd7
AA		 2372#ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2373 {
2374 .cmd = NL802154_CMD_SET_SEC_PARAMS,
ef6243ac 2375 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2376 .doit = nl802154_set_llsec_params,
a26c5fd7
AA		 2377 .flags = GENL_ADMIN_PERM,
2378 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2379 NL802154_FLAG_NEED_RTNL,
2380 },
2381 {
2382 .cmd = NL802154_CMD_GET_SEC_KEY,
75cdbdd0
JP		 2383 .validate = GENL_DONT_VALIDATE_STRICT |
2384 GENL_DONT_VALIDATE_DUMP_STRICT,
a26c5fd7
AA		 2385 /* TODO .doit by matching key id? */
2386 .dumpit = nl802154_dump_llsec_key,
a26c5fd7
AA		 2387 .flags = GENL_ADMIN_PERM,
2388 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2389 NL802154_FLAG_NEED_RTNL,
2390 },
2391 {
2392 .cmd = NL802154_CMD_NEW_SEC_KEY,
ef6243ac 2393 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2394 .doit = nl802154_add_llsec_key,
a26c5fd7
AA		 2395 .flags = GENL_ADMIN_PERM,
2396 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2397 NL802154_FLAG_NEED_RTNL,
2398 },
2399 {
2400 .cmd = NL802154_CMD_DEL_SEC_KEY,
ef6243ac 2401 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2402 .doit = nl802154_del_llsec_key,
a26c5fd7
AA		 2403 .flags = GENL_ADMIN_PERM,
2404 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2405 NL802154_FLAG_NEED_RTNL,
2406 },
2407 /* TODO unique identifier must short+pan OR extended_addr */
2408 {
2409 .cmd = NL802154_CMD_GET_SEC_DEV,
75cdbdd0
JP		 2410 .validate = GENL_DONT_VALIDATE_STRICT |
2411 GENL_DONT_VALIDATE_DUMP_STRICT,
a26c5fd7
AA		 2412 /* TODO .doit by matching extended_addr? */
2413 .dumpit = nl802154_dump_llsec_dev,
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_NEW_SEC_DEV,
ef6243ac 2420 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2421 .doit = nl802154_add_llsec_dev,
a26c5fd7
AA		 2422 .flags = GENL_ADMIN_PERM,
2423 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2424 NL802154_FLAG_NEED_RTNL,
2425 },
2426 {
2427 .cmd = NL802154_CMD_DEL_SEC_DEV,
ef6243ac 2428 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2429 .doit = nl802154_del_llsec_dev,
a26c5fd7
AA		 2430 .flags = GENL_ADMIN_PERM,
2431 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2432 NL802154_FLAG_NEED_RTNL,
2433 },
2434 /* TODO remove complete devkey, put it as nested? */
2435 {
2436 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
75cdbdd0
JP		 2437 .validate = GENL_DONT_VALIDATE_STRICT |
2438 GENL_DONT_VALIDATE_DUMP_STRICT,
a26c5fd7
AA		 2439 /* TODO doit by matching ??? */
2440 .dumpit = nl802154_dump_llsec_devkey,
a26c5fd7
AA		 2441 .flags = GENL_ADMIN_PERM,
2442 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2443 NL802154_FLAG_NEED_RTNL,
2444 },
2445 {
2446 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
ef6243ac 2447 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2448 .doit = nl802154_add_llsec_devkey,
a26c5fd7
AA		 2449 .flags = GENL_ADMIN_PERM,
2450 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2451 NL802154_FLAG_NEED_RTNL,
2452 },
2453 {
2454 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
ef6243ac 2455 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2456 .doit = nl802154_del_llsec_devkey,
a26c5fd7
AA		 2457 .flags = GENL_ADMIN_PERM,
2458 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2459 NL802154_FLAG_NEED_RTNL,
2460 },
2461 {
2462 .cmd = NL802154_CMD_GET_SEC_LEVEL,
75cdbdd0
JP		 2463 .validate = GENL_DONT_VALIDATE_STRICT |
2464 GENL_DONT_VALIDATE_DUMP_STRICT,
a26c5fd7
AA		 2465 /* TODO .doit by matching frame_type? */
2466 .dumpit = nl802154_dump_llsec_seclevel,
a26c5fd7
AA		 2467 .flags = GENL_ADMIN_PERM,
2468 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2469 NL802154_FLAG_NEED_RTNL,
2470 },
2471 {
2472 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
ef6243ac 2473 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7 2474 .doit = nl802154_add_llsec_seclevel,
a26c5fd7
AA		 2475 .flags = GENL_ADMIN_PERM,
2476 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2477 NL802154_FLAG_NEED_RTNL,
2478 },
2479 {
2480 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
ef6243ac 2481 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
a26c5fd7
AA		 2482 /* TODO match frame_type only? */
2483 .doit = nl802154_del_llsec_seclevel,
a26c5fd7
AA		 2484 .flags = GENL_ADMIN_PERM,
2485 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2486 NL802154_FLAG_NEED_RTNL,
2487 },
2488#endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
79fe1a2a
AA		 2489};
2490
56989f6d 2491static struct genl_family nl802154_fam __ro_after_init = {
489111e5
JB		 2492 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2493 .hdrsize = 0, /* no private header */
2494 .version = 1, /* no particular meaning now */
2495 .maxattr = NL802154_ATTR_MAX,
3b0f31f2 2496 .policy = nl802154_policy,
489111e5
JB		 2497 .netnsok = true,
2498 .pre_doit = nl802154_pre_doit,
2499 .post_doit = nl802154_post_doit,
2500 .module = THIS_MODULE,
2501 .ops = nl802154_ops,
2502 .n_ops = ARRAY_SIZE(nl802154_ops),
2503 .mcgrps = nl802154_mcgrps,
2504 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2505};
2506
79fe1a2a 2507/* initialisation/exit functions */
56989f6d 2508int __init nl802154_init(void)
79fe1a2a 2509{
489111e5 2510 return genl_register_family(&nl802154_fam);
79fe1a2a
AA		 2511}
2512
2513void nl802154_exit(void)
2514{
2515 genl_unregister_family(&nl802154_fam);
2516}
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