1 /* This program is free software; you can redistribute it and/or modify
2 * it under the terms of the GNU General Public License version 2
3 * as published by the Free Software Foundation.
5 * This program is distributed in the hope that it will be useful,
6 * but WITHOUT ANY WARRANTY; without even the implied warranty of
7 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
8 * GNU General Public License for more details.
11 * Alexander Aring <aar@pengutronix.de>
13 * Based on: net/wireless/nl80211.c
16 #include <linux/rtnetlink.h>
18 #include <net/cfg802154.h>
19 #include <net/genetlink.h>
20 #include <net/mac802154.h>
21 #include <net/netlink.h>
22 #include <net/nl802154.h>
29 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
30 struct genl_info *info);
32 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
35 /* the netlink family */
36 static struct genl_family nl802154_fam = {
37 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
38 .name = NL802154_GENL_NAME, /* have users key off the name instead */
39 .hdrsize = 0, /* no private header */
40 .version = 1, /* no particular meaning now */
41 .maxattr = NL802154_ATTR_MAX,
43 .pre_doit = nl802154_pre_doit,
44 .post_doit = nl802154_post_doit,
47 /* multicast groups */
48 enum nl802154_multicast_groups {
49 NL802154_MCGRP_CONFIG,
52 static const struct genl_multicast_group nl802154_mcgrps[] = {
53 [NL802154_MCGRP_CONFIG] = { .name = "config", },
56 /* returns ERR_PTR values */
57 static struct wpan_dev *
58 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
60 struct cfg802154_registered_device *rdev;
61 struct wpan_dev *result = NULL;
62 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
63 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
65 int wpan_phy_idx = -1;
70 if (!have_ifidx && !have_wpan_dev_id)
71 return ERR_PTR(-EINVAL);
74 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
75 if (have_wpan_dev_id) {
76 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
77 wpan_phy_idx = wpan_dev_id >> 32;
80 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
81 struct wpan_dev *wpan_dev;
83 if (wpan_phy_net(&rdev->wpan_phy) != netns)
86 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
89 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
90 if (have_ifidx && wpan_dev->netdev &&
91 wpan_dev->netdev->ifindex == ifidx) {
95 if (have_wpan_dev_id &&
96 wpan_dev->identifier == (u32)wpan_dev_id) {
109 return ERR_PTR(-ENODEV);
112 static struct cfg802154_registered_device *
113 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
115 struct cfg802154_registered_device *rdev = NULL, *tmp;
116 struct net_device *netdev;
120 if (!attrs[NL802154_ATTR_WPAN_PHY] &&
121 !attrs[NL802154_ATTR_IFINDEX] &&
122 !attrs[NL802154_ATTR_WPAN_DEV])
123 return ERR_PTR(-EINVAL);
125 if (attrs[NL802154_ATTR_WPAN_PHY])
126 rdev = cfg802154_rdev_by_wpan_phy_idx(
127 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
129 if (attrs[NL802154_ATTR_WPAN_DEV]) {
130 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
131 struct wpan_dev *wpan_dev;
134 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
136 /* make sure wpan_dev exists */
137 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
138 if (wpan_dev->identifier != (u32)wpan_dev_id)
147 if (rdev && tmp != rdev)
148 return ERR_PTR(-EINVAL);
153 if (attrs[NL802154_ATTR_IFINDEX]) {
154 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
156 netdev = __dev_get_by_index(netns, ifindex);
158 if (netdev->ieee802154_ptr)
159 tmp = wpan_phy_to_rdev(
160 netdev->ieee802154_ptr->wpan_phy);
164 /* not wireless device -- return error */
166 return ERR_PTR(-EINVAL);
168 /* mismatch -- return error */
169 if (rdev && tmp != rdev)
170 return ERR_PTR(-EINVAL);
177 return ERR_PTR(-ENODEV);
179 if (netns != wpan_phy_net(&rdev->wpan_phy))
180 return ERR_PTR(-ENODEV);
185 /* This function returns a pointer to the driver
186 * that the genl_info item that is passed refers to.
188 * The result of this can be a PTR_ERR and hence must
189 * be checked with IS_ERR() for errors.
191 static struct cfg802154_registered_device *
192 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
194 return __cfg802154_rdev_from_attrs(netns, info->attrs);
197 /* policy for the attributes */
198 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
199 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
200 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
203 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
204 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
205 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
207 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
209 [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
210 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
212 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
214 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
215 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
216 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
218 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
220 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
221 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
222 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
224 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
225 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
226 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
228 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
230 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
232 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
234 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
236 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
238 [NL802154_ATTR_PID] = { .type = NLA_U32 },
239 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
240 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
241 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
242 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
243 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
244 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
246 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
247 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
248 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
249 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
250 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
253 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
255 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
256 struct netlink_callback *cb,
257 struct cfg802154_registered_device **rdev,
258 struct wpan_dev **wpan_dev)
265 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
266 nl802154_fam.attrbuf, nl802154_fam.maxattr,
271 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
272 nl802154_fam.attrbuf);
273 if (IS_ERR(*wpan_dev)) {
274 err = PTR_ERR(*wpan_dev);
277 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
278 /* 0 is the first index - add 1 to parse only once */
279 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
280 cb->args[1] = (*wpan_dev)->identifier;
282 /* subtract the 1 again here */
283 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
284 struct wpan_dev *tmp;
290 *rdev = wpan_phy_to_rdev(wpan_phy);
293 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
294 if (tmp->identifier == cb->args[1]) {
313 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
317 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
319 /* message building helper */
320 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
323 /* since there is no private header just add the generic one */
324 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
328 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
330 struct nlattr *nl_flags = nla_nest_start(msg, attr);
338 if ((mask & 1) && nla_put_flag(msg, i))
345 nla_nest_end(msg, nl_flags);
350 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
353 struct nlattr *nl_page;
356 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
360 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
361 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
362 rdev->wpan_phy.supported.channels[page]))
365 nla_nest_end(msg, nl_page);
371 nl802154_put_capabilities(struct sk_buff *msg,
372 struct cfg802154_registered_device *rdev)
374 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
375 struct nlattr *nl_caps, *nl_channels;
378 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS);
382 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS);
386 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
387 if (caps->channels[i]) {
388 if (nl802154_put_flags(msg, i, caps->channels[i]))
393 nla_nest_end(msg, nl_channels);
395 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
396 struct nlattr *nl_ed_lvls;
398 nl_ed_lvls = nla_nest_start(msg,
399 NL802154_CAP_ATTR_CCA_ED_LEVELS);
403 for (i = 0; i < caps->cca_ed_levels_size; i++) {
404 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
408 nla_nest_end(msg, nl_ed_lvls);
411 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
412 struct nlattr *nl_tx_pwrs;
414 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS);
418 for (i = 0; i < caps->tx_powers_size; i++) {
419 if (nla_put_s32(msg, i, caps->tx_powers[i]))
423 nla_nest_end(msg, nl_tx_pwrs);
426 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
427 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
429 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
434 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
435 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
436 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
437 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
438 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
439 caps->min_csma_backoffs) ||
440 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
441 caps->max_csma_backoffs) ||
442 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
443 caps->min_frame_retries) ||
444 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
445 caps->max_frame_retries) ||
446 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
448 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
451 nla_nest_end(msg, nl_caps);
456 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
457 enum nl802154_commands cmd,
458 struct sk_buff *msg, u32 portid, u32 seq,
461 struct nlattr *nl_cmds;
465 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
469 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
470 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
471 wpan_phy_name(&rdev->wpan_phy)) ||
472 nla_put_u32(msg, NL802154_ATTR_GENERATION,
473 cfg802154_rdev_list_generation))
474 goto nla_put_failure;
476 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
481 /* current channel settings */
482 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
483 rdev->wpan_phy.current_page) ||
484 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
485 rdev->wpan_phy.current_channel))
486 goto nla_put_failure;
488 /* TODO remove this behaviour, we still keep support it for a while
489 * so users can change the behaviour to the new one.
491 if (nl802154_send_wpan_phy_channels(rdev, msg))
492 goto nla_put_failure;
495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
496 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
497 rdev->wpan_phy.cca.mode))
498 goto nla_put_failure;
500 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
501 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
502 rdev->wpan_phy.cca.opt))
503 goto nla_put_failure;
507 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
508 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
509 rdev->wpan_phy.transmit_power))
510 goto nla_put_failure;
513 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
514 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
515 rdev->wpan_phy.cca_ed_level))
516 goto nla_put_failure;
519 if (nl802154_put_capabilities(msg, rdev))
520 goto nla_put_failure;
522 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
524 goto nla_put_failure;
529 if (rdev->ops->op) { \
531 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
532 goto nla_put_failure; \
536 CMD(add_virtual_intf, NEW_INTERFACE);
537 CMD(del_virtual_intf, DEL_INTERFACE);
538 CMD(set_channel, SET_CHANNEL);
539 CMD(set_pan_id, SET_PAN_ID);
540 CMD(set_short_addr, SET_SHORT_ADDR);
541 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
542 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
543 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
544 CMD(set_lbt_mode, SET_LBT_MODE);
545 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
547 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
548 CMD(set_tx_power, SET_TX_POWER);
550 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
551 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
553 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
554 CMD(set_cca_mode, SET_CCA_MODE);
557 nla_nest_end(msg, nl_cmds);
560 genlmsg_end(msg, hdr);
564 genlmsg_cancel(msg, hdr);
568 struct nl802154_dump_wpan_phy_state {
574 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
575 struct netlink_callback *cb,
576 struct nl802154_dump_wpan_phy_state *state)
578 struct nlattr **tb = nl802154_fam.attrbuf;
579 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
580 tb, nl802154_fam.maxattr, nl802154_policy);
582 /* TODO check if we can handle error here,
583 * we have no backward compatibility
588 if (tb[NL802154_ATTR_WPAN_PHY])
589 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
590 if (tb[NL802154_ATTR_WPAN_DEV])
591 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
592 if (tb[NL802154_ATTR_IFINDEX]) {
593 struct net_device *netdev;
594 struct cfg802154_registered_device *rdev;
595 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
597 netdev = __dev_get_by_index(&init_net, ifidx);
600 if (netdev->ieee802154_ptr) {
601 rdev = wpan_phy_to_rdev(
602 netdev->ieee802154_ptr->wpan_phy);
603 state->filter_wpan_phy = rdev->wpan_phy_idx;
611 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
614 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
615 struct cfg802154_registered_device *rdev;
619 state = kzalloc(sizeof(*state), GFP_KERNEL);
624 state->filter_wpan_phy = -1;
625 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
631 cb->args[0] = (long)state;
634 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
635 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
637 if (++idx <= state->start)
639 if (state->filter_wpan_phy != -1 &&
640 state->filter_wpan_phy != rdev->wpan_phy_idx)
642 /* attempt to fit multiple wpan_phy data chunks into the skb */
643 ret = nl802154_send_wpan_phy(rdev,
644 NL802154_CMD_NEW_WPAN_PHY,
646 NETLINK_CB(cb->skb).portid,
647 cb->nlh->nlmsg_seq, NLM_F_MULTI);
649 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
650 !skb->len && cb->min_dump_alloc < 4096) {
651 cb->min_dump_alloc = 4096;
667 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
669 kfree((void *)cb->args[0]);
673 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
676 struct cfg802154_registered_device *rdev = info->user_ptr[0];
678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
682 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
683 info->snd_portid, info->snd_seq, 0) < 0) {
688 return genlmsg_reply(msg, info);
691 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
693 return (u64)wpan_dev->identifier |
694 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
697 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
698 #include <net/ieee802154_netdev.h>
701 ieee802154_llsec_send_key_id(struct sk_buff *msg,
702 const struct ieee802154_llsec_key_id *desc)
704 struct nlattr *nl_dev_addr;
706 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
709 switch (desc->mode) {
710 case NL802154_KEY_ID_MODE_IMPLICIT:
711 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT);
715 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
716 desc->device_addr.pan_id) ||
717 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
718 desc->device_addr.mode))
721 switch (desc->device_addr.mode) {
722 case NL802154_DEV_ADDR_SHORT:
723 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
724 desc->device_addr.short_addr))
727 case NL802154_DEV_ADDR_EXTENDED:
728 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
729 desc->device_addr.extended_addr,
730 NL802154_DEV_ADDR_ATTR_PAD))
734 /* userspace should handle unknown */
738 nla_nest_end(msg, nl_dev_addr);
740 case NL802154_KEY_ID_MODE_INDEX:
742 case NL802154_KEY_ID_MODE_INDEX_SHORT:
743 /* TODO renmae short_source? */
744 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
748 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
749 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
750 desc->extended_source,
751 NL802154_KEY_ID_ATTR_PAD))
755 /* userspace should handle unknown */
759 /* TODO key_id to key_idx ? Check naming */
760 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
761 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
768 static int nl802154_get_llsec_params(struct sk_buff *msg,
769 struct cfg802154_registered_device *rdev,
770 struct wpan_dev *wpan_dev)
772 struct nlattr *nl_key_id;
773 struct ieee802154_llsec_params params;
776 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms);
780 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
781 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
782 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
783 params.frame_counter))
786 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
790 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key);
794 nla_nest_end(msg, nl_key_id);
798 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
801 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
802 struct cfg802154_registered_device *rdev,
803 struct wpan_dev *wpan_dev)
805 struct net_device *dev = wpan_dev->netdev;
808 hdr = nl802154hdr_put(msg, portid, seq, flags,
809 NL802154_CMD_NEW_INTERFACE);
814 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
815 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
816 goto nla_put_failure;
818 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
819 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
820 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
821 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
822 nla_put_u32(msg, NL802154_ATTR_GENERATION,
823 rdev->devlist_generation ^
824 (cfg802154_rdev_list_generation << 2)))
825 goto nla_put_failure;
827 /* address settings */
828 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
829 wpan_dev->extended_addr,
830 NL802154_ATTR_PAD) ||
831 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
832 wpan_dev->short_addr) ||
833 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
834 goto nla_put_failure;
837 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
838 wpan_dev->frame_retries) ||
839 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
840 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
841 wpan_dev->csma_retries) ||
842 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
843 goto nla_put_failure;
845 /* listen before transmit */
846 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
847 goto nla_put_failure;
849 /* ackreq default behaviour */
850 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
851 goto nla_put_failure;
853 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
854 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
857 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
858 goto nla_put_failure;
861 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
863 genlmsg_end(msg, hdr);
867 genlmsg_cancel(msg, hdr);
872 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
876 int wp_start = cb->args[0];
877 int if_start = cb->args[1];
878 struct cfg802154_registered_device *rdev;
879 struct wpan_dev *wpan_dev;
882 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
883 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
885 if (wp_idx < wp_start) {
891 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
892 if (if_idx < if_start) {
896 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
897 cb->nlh->nlmsg_seq, NLM_F_MULTI,
898 rdev, wpan_dev) < 0) {
909 cb->args[0] = wp_idx;
910 cb->args[1] = if_idx;
915 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
918 struct cfg802154_registered_device *rdev = info->user_ptr[0];
919 struct wpan_dev *wdev = info->user_ptr[1];
921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
925 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
931 return genlmsg_reply(msg, info);
934 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
936 struct cfg802154_registered_device *rdev = info->user_ptr[0];
937 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
938 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
940 /* TODO avoid failing a new interface
941 * creation due to pending removal?
944 if (!info->attrs[NL802154_ATTR_IFNAME])
947 if (info->attrs[NL802154_ATTR_IFTYPE]) {
948 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
949 if (type > NL802154_IFTYPE_MAX ||
950 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
954 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
955 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
957 if (!rdev->ops->add_virtual_intf)
960 return rdev_add_virtual_intf(rdev,
961 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
962 NET_NAME_USER, type, extended_addr);
965 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
967 struct cfg802154_registered_device *rdev = info->user_ptr[0];
968 struct wpan_dev *wpan_dev = info->user_ptr[1];
970 if (!rdev->ops->del_virtual_intf)
973 /* If we remove a wpan device without a netdev then clear
974 * user_ptr[1] so that nl802154_post_doit won't dereference it
975 * to check if it needs to do dev_put(). Otherwise it crashes
976 * since the wpan_dev has been freed, unlike with a netdev where
977 * we need the dev_put() for the netdev to really be freed.
979 if (!wpan_dev->netdev)
980 info->user_ptr[1] = NULL;
982 return rdev_del_virtual_intf(rdev, wpan_dev);
985 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
987 struct cfg802154_registered_device *rdev = info->user_ptr[0];
990 if (!info->attrs[NL802154_ATTR_PAGE] ||
991 !info->attrs[NL802154_ATTR_CHANNEL])
994 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
995 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
997 /* check 802.15.4 constraints */
998 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
999 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
1002 return rdev_set_channel(rdev, page, channel);
1005 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
1007 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1008 struct wpan_phy_cca cca;
1010 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
1013 if (!info->attrs[NL802154_ATTR_CCA_MODE])
1016 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1017 /* checking 802.15.4 constraints */
1018 if (cca.mode < NL802154_CCA_ENERGY ||
1019 cca.mode > NL802154_CCA_ATTR_MAX ||
1020 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1023 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1024 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1027 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1028 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1029 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1033 return rdev_set_cca_mode(rdev, &cca);
1036 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1038 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1042 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1045 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1048 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1050 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1051 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1052 return rdev_set_cca_ed_level(rdev, ed_level);
1058 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1060 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1064 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1067 if (!info->attrs[NL802154_ATTR_TX_POWER])
1070 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1072 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1073 if (power == rdev->wpan_phy.supported.tx_powers[i])
1074 return rdev_set_tx_power(rdev, power);
1080 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1082 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1083 struct net_device *dev = info->user_ptr[1];
1084 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1087 /* conflict here while tx/rx calls */
1088 if (netif_running(dev))
1091 if (wpan_dev->lowpan_dev) {
1092 if (netif_running(wpan_dev->lowpan_dev))
1096 /* don't change address fields on monitor */
1097 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1098 !info->attrs[NL802154_ATTR_PAN_ID])
1101 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1104 * I am not sure about to check here on broadcast pan_id.
1105 * Broadcast is a valid setting, comment from 802.15.4:
1106 * If this value is 0xffff, the device is not associated.
1108 * This could useful to simple deassociate an device.
1110 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1113 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1116 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1118 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1119 struct net_device *dev = info->user_ptr[1];
1120 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1123 /* conflict here while tx/rx calls */
1124 if (netif_running(dev))
1127 if (wpan_dev->lowpan_dev) {
1128 if (netif_running(wpan_dev->lowpan_dev))
1132 /* don't change address fields on monitor */
1133 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1134 !info->attrs[NL802154_ATTR_SHORT_ADDR])
1137 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1140 * I am not sure about to check here on broadcast short_addr.
1141 * Broadcast is a valid setting, comment from 802.15.4:
1142 * A value of 0xfffe indicates that the device has
1143 * associated but has not been allocated an address. A
1144 * value of 0xffff indicates that the device does not
1145 * have a short address.
1147 * I think we should allow to set these settings but
1148 * don't allow to allow socket communication with it.
1150 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1151 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1154 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1158 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1160 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1161 struct net_device *dev = info->user_ptr[1];
1162 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1165 /* should be set on netif open inside phy settings */
1166 if (netif_running(dev))
1169 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1170 !info->attrs[NL802154_ATTR_MAX_BE])
1173 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1174 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1176 /* check 802.15.4 constraints */
1177 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1178 min_be > rdev->wpan_phy.supported.max_minbe ||
1179 max_be < rdev->wpan_phy.supported.min_maxbe ||
1180 max_be > rdev->wpan_phy.supported.max_maxbe ||
1184 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1188 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1190 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1191 struct net_device *dev = info->user_ptr[1];
1192 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1193 u8 max_csma_backoffs;
1195 /* conflict here while other running iface settings */
1196 if (netif_running(dev))
1199 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1202 max_csma_backoffs = nla_get_u8(
1203 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1205 /* check 802.15.4 constraints */
1206 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1207 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1210 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1214 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1216 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1217 struct net_device *dev = info->user_ptr[1];
1218 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1219 s8 max_frame_retries;
1221 if (netif_running(dev))
1224 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1227 max_frame_retries = nla_get_s8(
1228 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1230 /* check 802.15.4 constraints */
1231 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1232 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1235 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1238 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1240 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1241 struct net_device *dev = info->user_ptr[1];
1242 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1245 if (netif_running(dev))
1248 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1251 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1253 if (mode != 0 && mode != 1)
1256 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1259 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1263 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1265 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1266 struct net_device *dev = info->user_ptr[1];
1267 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1270 if (netif_running(dev))
1273 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1276 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1278 if (ackreq != 0 && ackreq != 1)
1281 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1284 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1286 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1290 if (info->attrs[NL802154_ATTR_PID]) {
1291 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1293 net = get_net_ns_by_pid(pid);
1294 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1295 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1297 net = get_net_ns_by_fd(fd);
1303 return PTR_ERR(net);
1307 /* check if anything to do */
1308 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1309 err = cfg802154_switch_netns(rdev, net);
1315 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1316 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1317 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1318 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1319 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1320 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1324 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1325 struct ieee802154_addr *addr)
1327 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1329 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla,
1330 nl802154_dev_addr_policy))
1333 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] || !attrs[NL802154_DEV_ADDR_ATTR_MODE])
1336 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1337 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1338 switch (addr->mode) {
1339 case NL802154_DEV_ADDR_SHORT:
1340 if (!attrs[NL802154_DEV_ADDR_ATTR_SHORT])
1342 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1344 case NL802154_DEV_ADDR_EXTENDED:
1345 if (!attrs[NL802154_DEV_ADDR_ATTR_EXTENDED])
1347 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1356 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1357 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1358 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1359 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1360 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1361 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1365 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1366 struct ieee802154_llsec_key_id *desc)
1368 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1370 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla,
1371 nl802154_key_id_policy))
1374 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1377 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1378 switch (desc->mode) {
1379 case NL802154_KEY_ID_MODE_IMPLICIT:
1380 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1383 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1384 &desc->device_addr) < 0)
1387 case NL802154_KEY_ID_MODE_INDEX:
1389 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1390 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1393 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1395 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1396 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1399 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1405 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1406 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1409 /* TODO change id to idx */
1410 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1416 static int nl802154_set_llsec_params(struct sk_buff *skb,
1417 struct genl_info *info)
1419 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1420 struct net_device *dev = info->user_ptr[1];
1421 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1422 struct ieee802154_llsec_params params;
1426 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1429 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1432 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1433 if (enabled != 0 && enabled != 1)
1436 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1437 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1440 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1441 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1446 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1449 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1450 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1451 if (params.out_level > NL802154_SECLEVEL_MAX)
1454 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1457 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1458 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1459 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1462 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed);
1465 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1467 struct cfg802154_registered_device *rdev,
1468 struct net_device *dev,
1469 const struct ieee802154_llsec_key_entry *key)
1472 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1473 struct nlattr *nl_key, *nl_key_id;
1475 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1479 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1480 goto nla_put_failure;
1482 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY);
1484 goto nla_put_failure;
1486 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID);
1488 goto nla_put_failure;
1490 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1491 goto nla_put_failure;
1493 nla_nest_end(msg, nl_key_id);
1495 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1496 key->key->frame_types))
1497 goto nla_put_failure;
1499 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1500 /* TODO for each nested */
1501 memset(commands, 0, sizeof(commands));
1502 commands[7] = key->key->cmd_frame_ids;
1503 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1504 sizeof(commands), commands))
1505 goto nla_put_failure;
1508 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1510 goto nla_put_failure;
1512 nla_nest_end(msg, nl_key);
1513 genlmsg_end(msg, hdr);
1518 genlmsg_cancel(msg, hdr);
1523 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1525 struct cfg802154_registered_device *rdev = NULL;
1526 struct ieee802154_llsec_key_entry *key;
1527 struct ieee802154_llsec_table *table;
1528 struct wpan_dev *wpan_dev;
1531 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1535 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1540 if (!wpan_dev->netdev) {
1545 rdev_lock_llsec_table(rdev, wpan_dev);
1546 rdev_get_llsec_table(rdev, wpan_dev, &table);
1548 /* TODO make it like station dump */
1552 list_for_each_entry(key, &table->keys, list) {
1553 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1554 NETLINK_CB(cb->skb).portid,
1555 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1556 rdev, wpan_dev->netdev, key) < 0) {
1559 rdev_unlock_llsec_table(rdev, wpan_dev);
1567 rdev_unlock_llsec_table(rdev, wpan_dev);
1570 nl802154_finish_wpan_dev_dump(rdev);
1575 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1576 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1577 /* TODO handle it as for_each_nested and NLA_FLAG? */
1578 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1579 /* TODO handle it as for_each_nested, not static array? */
1580 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1581 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1584 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1586 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1587 struct net_device *dev = info->user_ptr[1];
1588 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1589 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1590 struct ieee802154_llsec_key key = { };
1591 struct ieee802154_llsec_key_id id = { };
1592 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1594 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1595 nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1596 info->attrs[NL802154_ATTR_SEC_KEY],
1597 nl802154_key_policy))
1600 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1601 !attrs[NL802154_KEY_ATTR_BYTES])
1604 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1607 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1608 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1609 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1610 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1613 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1614 /* TODO for each nested */
1615 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1616 NL802154_CMD_FRAME_NR_IDS / 8);
1618 /* TODO understand the -EINVAL logic here? last condition */
1619 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1620 commands[4] || commands[5] || commands[6] ||
1621 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1624 key.cmd_frame_ids = commands[7];
1626 key.cmd_frame_ids = 0;
1629 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1631 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1634 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1637 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1639 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1640 struct net_device *dev = info->user_ptr[1];
1641 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1642 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1643 struct ieee802154_llsec_key_id id;
1645 if (!info->attrs[NL802154_ATTR_SEC_KEY] ||
1646 nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1647 info->attrs[NL802154_ATTR_SEC_KEY],
1648 nl802154_key_policy))
1651 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1654 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1657 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1659 struct cfg802154_registered_device *rdev,
1660 struct net_device *dev,
1661 const struct ieee802154_llsec_device *dev_desc)
1664 struct nlattr *nl_device;
1666 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1670 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1671 goto nla_put_failure;
1673 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE);
1675 goto nla_put_failure;
1677 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1678 dev_desc->frame_counter) ||
1679 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1680 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1681 dev_desc->short_addr) ||
1682 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1683 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1684 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1685 dev_desc->seclevel_exempt) ||
1686 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1687 goto nla_put_failure;
1689 nla_nest_end(msg, nl_device);
1690 genlmsg_end(msg, hdr);
1695 genlmsg_cancel(msg, hdr);
1700 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1702 struct cfg802154_registered_device *rdev = NULL;
1703 struct ieee802154_llsec_device *dev;
1704 struct ieee802154_llsec_table *table;
1705 struct wpan_dev *wpan_dev;
1708 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1712 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1717 if (!wpan_dev->netdev) {
1722 rdev_lock_llsec_table(rdev, wpan_dev);
1723 rdev_get_llsec_table(rdev, wpan_dev, &table);
1725 /* TODO make it like station dump */
1729 list_for_each_entry(dev, &table->devices, list) {
1730 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1731 NETLINK_CB(cb->skb).portid,
1732 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1733 rdev, wpan_dev->netdev, dev) < 0) {
1736 rdev_unlock_llsec_table(rdev, wpan_dev);
1744 rdev_unlock_llsec_table(rdev, wpan_dev);
1747 nl802154_finish_wpan_dev_dump(rdev);
1752 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1753 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1754 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1755 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1756 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1757 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1758 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1762 ieee802154_llsec_parse_device(struct nlattr *nla,
1763 struct ieee802154_llsec_device *dev)
1765 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1767 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla,
1768 nl802154_dev_policy))
1771 memset(dev, 0, sizeof(*dev));
1773 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1774 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1775 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1776 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1777 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1778 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1782 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1783 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1784 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1785 /* TODO rename hwaddr to extended_addr */
1786 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1787 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1788 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1790 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1791 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1797 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1799 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1800 struct net_device *dev = info->user_ptr[1];
1801 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1802 struct ieee802154_llsec_device dev_desc;
1804 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1807 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1811 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1814 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1816 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1817 struct net_device *dev = info->user_ptr[1];
1818 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1819 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1820 __le64 extended_addr;
1822 if (!info->attrs[NL802154_ATTR_SEC_DEVICE] ||
1823 nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1824 info->attrs[NL802154_ATTR_SEC_DEVICE],
1825 nl802154_dev_policy))
1828 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1831 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1832 return rdev_del_device(rdev, wpan_dev, extended_addr);
1835 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1837 struct cfg802154_registered_device *rdev,
1838 struct net_device *dev, __le64 extended_addr,
1839 const struct ieee802154_llsec_device_key *devkey)
1842 struct nlattr *nl_devkey, *nl_key_id;
1844 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1848 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1849 goto nla_put_failure;
1851 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY);
1853 goto nla_put_failure;
1855 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1856 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1857 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1858 devkey->frame_counter))
1859 goto nla_put_failure;
1861 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID);
1863 goto nla_put_failure;
1865 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1866 goto nla_put_failure;
1868 nla_nest_end(msg, nl_key_id);
1869 nla_nest_end(msg, nl_devkey);
1870 genlmsg_end(msg, hdr);
1875 genlmsg_cancel(msg, hdr);
1880 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1882 struct cfg802154_registered_device *rdev = NULL;
1883 struct ieee802154_llsec_device_key *kpos;
1884 struct ieee802154_llsec_device *dpos;
1885 struct ieee802154_llsec_table *table;
1886 struct wpan_dev *wpan_dev;
1889 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1893 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
1898 if (!wpan_dev->netdev) {
1903 rdev_lock_llsec_table(rdev, wpan_dev);
1904 rdev_get_llsec_table(rdev, wpan_dev, &table);
1906 /* TODO make it like station dump */
1910 /* TODO look if remove devkey and do some nested attribute */
1911 list_for_each_entry(dpos, &table->devices, list) {
1912 list_for_each_entry(kpos, &dpos->keys, list) {
1913 if (nl802154_send_devkey(skb,
1914 NL802154_CMD_NEW_SEC_LEVEL,
1915 NETLINK_CB(cb->skb).portid,
1923 rdev_unlock_llsec_table(rdev, wpan_dev);
1932 rdev_unlock_llsec_table(rdev, wpan_dev);
1935 nl802154_finish_wpan_dev_dump(rdev);
1940 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1941 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1942 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1943 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1946 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1948 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1949 struct net_device *dev = info->user_ptr[1];
1950 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1951 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1952 struct ieee802154_llsec_device_key key;
1953 __le64 extended_addr;
1955 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
1958 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1959 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1960 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1961 nl802154_devkey_policy) < 0)
1964 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1965 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1968 /* TODO change key.id ? */
1969 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1974 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1975 /* TODO change naming hwaddr -> extended_addr
1976 * check unique identifier short+pan OR extended_addr
1978 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1979 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1982 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1984 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1985 struct net_device *dev = info->user_ptr[1];
1986 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1987 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1988 struct ieee802154_llsec_device_key key;
1989 __le64 extended_addr;
1991 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1992 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1993 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1994 nl802154_devkey_policy))
1997 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
2000 /* TODO change key.id ? */
2001 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
2005 /* TODO change naming hwaddr -> extended_addr
2006 * check unique identifier short+pan OR extended_addr
2008 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
2009 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
2012 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
2014 struct cfg802154_registered_device *rdev,
2015 struct net_device *dev,
2016 const struct ieee802154_llsec_seclevel *sl)
2019 struct nlattr *nl_seclevel;
2021 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
2025 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
2026 goto nla_put_failure;
2028 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL);
2030 goto nla_put_failure;
2032 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
2033 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
2034 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
2035 sl->device_override))
2036 goto nla_put_failure;
2038 if (sl->frame_type == NL802154_FRAME_CMD) {
2039 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
2041 goto nla_put_failure;
2044 nla_nest_end(msg, nl_seclevel);
2045 genlmsg_end(msg, hdr);
2050 genlmsg_cancel(msg, hdr);
2055 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
2057 struct cfg802154_registered_device *rdev = NULL;
2058 struct ieee802154_llsec_seclevel *sl;
2059 struct ieee802154_llsec_table *table;
2060 struct wpan_dev *wpan_dev;
2063 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2067 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) {
2072 if (!wpan_dev->netdev) {
2077 rdev_lock_llsec_table(rdev, wpan_dev);
2078 rdev_get_llsec_table(rdev, wpan_dev, &table);
2080 /* TODO make it like station dump */
2084 list_for_each_entry(sl, &table->security_levels, list) {
2085 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2086 NETLINK_CB(cb->skb).portid,
2087 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2088 rdev, wpan_dev->netdev, sl) < 0) {
2091 rdev_unlock_llsec_table(rdev, wpan_dev);
2099 rdev_unlock_llsec_table(rdev, wpan_dev);
2102 nl802154_finish_wpan_dev_dump(rdev);
2107 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2108 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2109 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2110 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2111 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2115 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2117 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2119 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla,
2120 nl802154_seclevel_policy))
2123 memset(sl, 0, sizeof(*sl));
2125 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2126 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2127 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2130 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2131 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2132 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2133 if (sl->frame_type > NL802154_FRAME_MAX ||
2134 (sl->device_override != 0 && sl->device_override != 1))
2137 if (sl->frame_type == NL802154_FRAME_CMD) {
2138 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2141 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2142 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2149 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2150 struct genl_info *info)
2152 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2153 struct net_device *dev = info->user_ptr[1];
2154 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2155 struct ieee802154_llsec_seclevel sl;
2157 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2160 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2164 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2167 static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2168 struct genl_info *info)
2170 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2172 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2173 struct ieee802154_llsec_seclevel sl;
2175 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR)
2178 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2179 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2183 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2185 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2187 #define NL802154_FLAG_NEED_WPAN_PHY 0x01
2188 #define NL802154_FLAG_NEED_NETDEV 0x02
2189 #define NL802154_FLAG_NEED_RTNL 0x04
2190 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2191 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2192 NL802154_FLAG_CHECK_NETDEV_UP)
2193 #define NL802154_FLAG_NEED_WPAN_DEV 0x10
2194 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2195 NL802154_FLAG_CHECK_NETDEV_UP)
2197 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2198 struct genl_info *info)
2200 struct cfg802154_registered_device *rdev;
2201 struct wpan_dev *wpan_dev;
2202 struct net_device *dev;
2203 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2208 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2209 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2213 return PTR_ERR(rdev);
2215 info->user_ptr[0] = rdev;
2216 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2217 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2219 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2221 if (IS_ERR(wpan_dev)) {
2224 return PTR_ERR(wpan_dev);
2227 dev = wpan_dev->netdev;
2228 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2230 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2237 info->user_ptr[1] = dev;
2239 info->user_ptr[1] = wpan_dev;
2243 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2244 !netif_running(dev)) {
2253 info->user_ptr[0] = rdev;
2259 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2260 struct genl_info *info)
2262 if (info->user_ptr[1]) {
2263 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2264 struct wpan_dev *wpan_dev = info->user_ptr[1];
2266 if (wpan_dev->netdev)
2267 dev_put(wpan_dev->netdev);
2269 dev_put(info->user_ptr[1]);
2273 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2277 static const struct genl_ops nl802154_ops[] = {
2279 .cmd = NL802154_CMD_GET_WPAN_PHY,
2280 .doit = nl802154_get_wpan_phy,
2281 .dumpit = nl802154_dump_wpan_phy,
2282 .done = nl802154_dump_wpan_phy_done,
2283 .policy = nl802154_policy,
2284 /* can be retrieved by unprivileged users */
2285 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2286 NL802154_FLAG_NEED_RTNL,
2289 .cmd = NL802154_CMD_GET_INTERFACE,
2290 .doit = nl802154_get_interface,
2291 .dumpit = nl802154_dump_interface,
2292 .policy = nl802154_policy,
2293 /* can be retrieved by unprivileged users */
2294 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2295 NL802154_FLAG_NEED_RTNL,
2298 .cmd = NL802154_CMD_NEW_INTERFACE,
2299 .doit = nl802154_new_interface,
2300 .policy = nl802154_policy,
2301 .flags = GENL_ADMIN_PERM,
2302 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2303 NL802154_FLAG_NEED_RTNL,
2306 .cmd = NL802154_CMD_DEL_INTERFACE,
2307 .doit = nl802154_del_interface,
2308 .policy = nl802154_policy,
2309 .flags = GENL_ADMIN_PERM,
2310 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2311 NL802154_FLAG_NEED_RTNL,
2314 .cmd = NL802154_CMD_SET_CHANNEL,
2315 .doit = nl802154_set_channel,
2316 .policy = nl802154_policy,
2317 .flags = GENL_ADMIN_PERM,
2318 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2319 NL802154_FLAG_NEED_RTNL,
2322 .cmd = NL802154_CMD_SET_CCA_MODE,
2323 .doit = nl802154_set_cca_mode,
2324 .policy = nl802154_policy,
2325 .flags = GENL_ADMIN_PERM,
2326 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2327 NL802154_FLAG_NEED_RTNL,
2330 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2331 .doit = nl802154_set_cca_ed_level,
2332 .policy = nl802154_policy,
2333 .flags = GENL_ADMIN_PERM,
2334 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2335 NL802154_FLAG_NEED_RTNL,
2338 .cmd = NL802154_CMD_SET_TX_POWER,
2339 .doit = nl802154_set_tx_power,
2340 .policy = nl802154_policy,
2341 .flags = GENL_ADMIN_PERM,
2342 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2343 NL802154_FLAG_NEED_RTNL,
2346 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
2347 .doit = nl802154_wpan_phy_netns,
2348 .policy = nl802154_policy,
2349 .flags = GENL_ADMIN_PERM,
2350 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2351 NL802154_FLAG_NEED_RTNL,
2354 .cmd = NL802154_CMD_SET_PAN_ID,
2355 .doit = nl802154_set_pan_id,
2356 .policy = nl802154_policy,
2357 .flags = GENL_ADMIN_PERM,
2358 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2359 NL802154_FLAG_NEED_RTNL,
2362 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2363 .doit = nl802154_set_short_addr,
2364 .policy = nl802154_policy,
2365 .flags = GENL_ADMIN_PERM,
2366 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2367 NL802154_FLAG_NEED_RTNL,
2370 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2371 .doit = nl802154_set_backoff_exponent,
2372 .policy = nl802154_policy,
2373 .flags = GENL_ADMIN_PERM,
2374 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2375 NL802154_FLAG_NEED_RTNL,
2378 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2379 .doit = nl802154_set_max_csma_backoffs,
2380 .policy = nl802154_policy,
2381 .flags = GENL_ADMIN_PERM,
2382 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2383 NL802154_FLAG_NEED_RTNL,
2386 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2387 .doit = nl802154_set_max_frame_retries,
2388 .policy = nl802154_policy,
2389 .flags = GENL_ADMIN_PERM,
2390 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2391 NL802154_FLAG_NEED_RTNL,
2394 .cmd = NL802154_CMD_SET_LBT_MODE,
2395 .doit = nl802154_set_lbt_mode,
2396 .policy = nl802154_policy,
2397 .flags = GENL_ADMIN_PERM,
2398 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2399 NL802154_FLAG_NEED_RTNL,
2402 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2403 .doit = nl802154_set_ackreq_default,
2404 .policy = nl802154_policy,
2405 .flags = GENL_ADMIN_PERM,
2406 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2407 NL802154_FLAG_NEED_RTNL,
2409 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2411 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2412 .doit = nl802154_set_llsec_params,
2413 .policy = nl802154_policy,
2414 .flags = GENL_ADMIN_PERM,
2415 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2416 NL802154_FLAG_NEED_RTNL,
2419 .cmd = NL802154_CMD_GET_SEC_KEY,
2420 /* TODO .doit by matching key id? */
2421 .dumpit = nl802154_dump_llsec_key,
2422 .policy = nl802154_policy,
2423 .flags = GENL_ADMIN_PERM,
2424 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2425 NL802154_FLAG_NEED_RTNL,
2428 .cmd = NL802154_CMD_NEW_SEC_KEY,
2429 .doit = nl802154_add_llsec_key,
2430 .policy = nl802154_policy,
2431 .flags = GENL_ADMIN_PERM,
2432 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2433 NL802154_FLAG_NEED_RTNL,
2436 .cmd = NL802154_CMD_DEL_SEC_KEY,
2437 .doit = nl802154_del_llsec_key,
2438 .policy = nl802154_policy,
2439 .flags = GENL_ADMIN_PERM,
2440 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2441 NL802154_FLAG_NEED_RTNL,
2443 /* TODO unique identifier must short+pan OR extended_addr */
2445 .cmd = NL802154_CMD_GET_SEC_DEV,
2446 /* TODO .doit by matching extended_addr? */
2447 .dumpit = nl802154_dump_llsec_dev,
2448 .policy = nl802154_policy,
2449 .flags = GENL_ADMIN_PERM,
2450 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2451 NL802154_FLAG_NEED_RTNL,
2454 .cmd = NL802154_CMD_NEW_SEC_DEV,
2455 .doit = nl802154_add_llsec_dev,
2456 .policy = nl802154_policy,
2457 .flags = GENL_ADMIN_PERM,
2458 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2459 NL802154_FLAG_NEED_RTNL,
2462 .cmd = NL802154_CMD_DEL_SEC_DEV,
2463 .doit = nl802154_del_llsec_dev,
2464 .policy = nl802154_policy,
2465 .flags = GENL_ADMIN_PERM,
2466 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2467 NL802154_FLAG_NEED_RTNL,
2469 /* TODO remove complete devkey, put it as nested? */
2471 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2472 /* TODO doit by matching ??? */
2473 .dumpit = nl802154_dump_llsec_devkey,
2474 .policy = nl802154_policy,
2475 .flags = GENL_ADMIN_PERM,
2476 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2477 NL802154_FLAG_NEED_RTNL,
2480 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2481 .doit = nl802154_add_llsec_devkey,
2482 .policy = nl802154_policy,
2483 .flags = GENL_ADMIN_PERM,
2484 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2485 NL802154_FLAG_NEED_RTNL,
2488 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2489 .doit = nl802154_del_llsec_devkey,
2490 .policy = nl802154_policy,
2491 .flags = GENL_ADMIN_PERM,
2492 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2493 NL802154_FLAG_NEED_RTNL,
2496 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2497 /* TODO .doit by matching frame_type? */
2498 .dumpit = nl802154_dump_llsec_seclevel,
2499 .policy = nl802154_policy,
2500 .flags = GENL_ADMIN_PERM,
2501 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2502 NL802154_FLAG_NEED_RTNL,
2505 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2506 .doit = nl802154_add_llsec_seclevel,
2507 .policy = nl802154_policy,
2508 .flags = GENL_ADMIN_PERM,
2509 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2510 NL802154_FLAG_NEED_RTNL,
2513 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2514 /* TODO match frame_type only? */
2515 .doit = nl802154_del_llsec_seclevel,
2516 .policy = nl802154_policy,
2517 .flags = GENL_ADMIN_PERM,
2518 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2519 NL802154_FLAG_NEED_RTNL,
2521 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2524 /* initialisation/exit functions */
2525 int nl802154_init(void)
2527 return genl_register_family_with_ops_groups(&nl802154_fam, nl802154_ops,
2531 void nl802154_exit(void)
2533 genl_unregister_family(&nl802154_fam);