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 /* TODO netns compare */
85 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
88 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
89 if (have_ifidx && wpan_dev->netdev &&
90 wpan_dev->netdev->ifindex == ifidx) {
94 if (have_wpan_dev_id &&
95 wpan_dev->identifier == (u32)wpan_dev_id) {
108 return ERR_PTR(-ENODEV);
111 static struct cfg802154_registered_device *
112 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
114 struct cfg802154_registered_device *rdev = NULL, *tmp;
115 struct net_device *netdev;
119 if (!attrs[NL802154_ATTR_WPAN_PHY] &&
120 !attrs[NL802154_ATTR_IFINDEX] &&
121 !attrs[NL802154_ATTR_WPAN_DEV])
122 return ERR_PTR(-EINVAL);
124 if (attrs[NL802154_ATTR_WPAN_PHY])
125 rdev = cfg802154_rdev_by_wpan_phy_idx(
126 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
128 if (attrs[NL802154_ATTR_WPAN_DEV]) {
129 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
130 struct wpan_dev *wpan_dev;
133 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
135 /* make sure wpan_dev exists */
136 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
137 if (wpan_dev->identifier != (u32)wpan_dev_id)
146 if (rdev && tmp != rdev)
147 return ERR_PTR(-EINVAL);
152 if (attrs[NL802154_ATTR_IFINDEX]) {
153 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
155 netdev = __dev_get_by_index(netns, ifindex);
157 if (netdev->ieee802154_ptr)
158 tmp = wpan_phy_to_rdev(
159 netdev->ieee802154_ptr->wpan_phy);
163 /* not wireless device -- return error */
165 return ERR_PTR(-EINVAL);
167 /* mismatch -- return error */
168 if (rdev && tmp != rdev)
169 return ERR_PTR(-EINVAL);
176 return ERR_PTR(-ENODEV);
178 /* TODO netns compare */
183 /* This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
186 * The result of this can be a PTR_ERR and hence must
187 * be checked with IS_ERR() for errors.
189 static struct cfg802154_registered_device *
190 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
192 return __cfg802154_rdev_from_attrs(netns, info->attrs);
195 /* policy for the attributes */
196 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
197 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
198 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
201 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
202 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
203 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
205 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
207 [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
208 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
210 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
212 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
213 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
214 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
216 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
218 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
219 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
220 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
222 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
223 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
224 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
226 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
228 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
230 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
232 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
234 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
236 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
237 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
238 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
239 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
240 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
242 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
243 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
244 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
245 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
246 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
249 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
251 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
252 struct netlink_callback *cb,
253 struct cfg802154_registered_device **rdev,
254 struct wpan_dev **wpan_dev)
261 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
262 nl802154_fam.attrbuf, nl802154_fam.maxattr,
267 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
268 nl802154_fam.attrbuf);
269 if (IS_ERR(*wpan_dev)) {
270 err = PTR_ERR(*wpan_dev);
273 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
274 /* 0 is the first index - add 1 to parse only once */
275 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
276 cb->args[1] = (*wpan_dev)->identifier;
278 /* subtract the 1 again here */
279 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
280 struct wpan_dev *tmp;
286 *rdev = wpan_phy_to_rdev(wpan_phy);
289 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
290 if (tmp->identifier == cb->args[1]) {
309 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
313 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
315 /* message building helper */
316 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
319 /* since there is no private header just add the generic one */
320 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
324 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
326 struct nlattr *nl_flags = nla_nest_start(msg, attr);
334 if ((mask & 1) && nla_put_flag(msg, i))
341 nla_nest_end(msg, nl_flags);
346 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
349 struct nlattr *nl_page;
352 nl_page = nla_nest_start(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
356 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
357 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
358 rdev->wpan_phy.supported.channels[page]))
361 nla_nest_end(msg, nl_page);
367 nl802154_put_capabilities(struct sk_buff *msg,
368 struct cfg802154_registered_device *rdev)
370 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
371 struct nlattr *nl_caps, *nl_channels;
374 nl_caps = nla_nest_start(msg, NL802154_ATTR_WPAN_PHY_CAPS);
378 nl_channels = nla_nest_start(msg, NL802154_CAP_ATTR_CHANNELS);
382 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
383 if (caps->channels[i]) {
384 if (nl802154_put_flags(msg, i, caps->channels[i]))
389 nla_nest_end(msg, nl_channels);
391 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
392 struct nlattr *nl_ed_lvls;
394 nl_ed_lvls = nla_nest_start(msg,
395 NL802154_CAP_ATTR_CCA_ED_LEVELS);
399 for (i = 0; i < caps->cca_ed_levels_size; i++) {
400 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
404 nla_nest_end(msg, nl_ed_lvls);
407 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
408 struct nlattr *nl_tx_pwrs;
410 nl_tx_pwrs = nla_nest_start(msg, NL802154_CAP_ATTR_TX_POWERS);
414 for (i = 0; i < caps->tx_powers_size; i++) {
415 if (nla_put_s32(msg, i, caps->tx_powers[i]))
419 nla_nest_end(msg, nl_tx_pwrs);
422 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
423 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
425 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
430 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
431 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
432 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
433 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
434 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
435 caps->min_csma_backoffs) ||
436 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
437 caps->max_csma_backoffs) ||
438 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
439 caps->min_frame_retries) ||
440 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
441 caps->max_frame_retries) ||
442 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
444 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
447 nla_nest_end(msg, nl_caps);
452 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
453 enum nl802154_commands cmd,
454 struct sk_buff *msg, u32 portid, u32 seq,
457 struct nlattr *nl_cmds;
461 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
465 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
466 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
467 wpan_phy_name(&rdev->wpan_phy)) ||
468 nla_put_u32(msg, NL802154_ATTR_GENERATION,
469 cfg802154_rdev_list_generation))
470 goto nla_put_failure;
472 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
477 /* current channel settings */
478 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
479 rdev->wpan_phy.current_page) ||
480 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
481 rdev->wpan_phy.current_channel))
482 goto nla_put_failure;
484 /* TODO remove this behaviour, we still keep support it for a while
485 * so users can change the behaviour to the new one.
487 if (nl802154_send_wpan_phy_channels(rdev, msg))
488 goto nla_put_failure;
491 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
492 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
493 rdev->wpan_phy.cca.mode))
494 goto nla_put_failure;
496 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
497 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
498 rdev->wpan_phy.cca.opt))
499 goto nla_put_failure;
503 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
504 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
505 rdev->wpan_phy.transmit_power))
506 goto nla_put_failure;
509 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
510 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
511 rdev->wpan_phy.cca_ed_level))
512 goto nla_put_failure;
515 if (nl802154_put_capabilities(msg, rdev))
516 goto nla_put_failure;
518 nl_cmds = nla_nest_start(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
520 goto nla_put_failure;
525 if (rdev->ops->op) { \
527 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
528 goto nla_put_failure; \
532 CMD(add_virtual_intf, NEW_INTERFACE);
533 CMD(del_virtual_intf, DEL_INTERFACE);
534 CMD(set_channel, SET_CHANNEL);
535 CMD(set_pan_id, SET_PAN_ID);
536 CMD(set_short_addr, SET_SHORT_ADDR);
537 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
538 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
539 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
540 CMD(set_lbt_mode, SET_LBT_MODE);
541 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
543 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
544 CMD(set_tx_power, SET_TX_POWER);
546 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
547 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
549 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
550 CMD(set_cca_mode, SET_CCA_MODE);
553 nla_nest_end(msg, nl_cmds);
556 genlmsg_end(msg, hdr);
560 genlmsg_cancel(msg, hdr);
564 struct nl802154_dump_wpan_phy_state {
570 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
571 struct netlink_callback *cb,
572 struct nl802154_dump_wpan_phy_state *state)
574 struct nlattr **tb = nl802154_fam.attrbuf;
575 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl802154_fam.hdrsize,
576 tb, nl802154_fam.maxattr, nl802154_policy);
578 /* TODO check if we can handle error here,
579 * we have no backward compatibility
584 if (tb[NL802154_ATTR_WPAN_PHY])
585 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
586 if (tb[NL802154_ATTR_WPAN_DEV])
587 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
588 if (tb[NL802154_ATTR_IFINDEX]) {
589 struct net_device *netdev;
590 struct cfg802154_registered_device *rdev;
591 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
594 netdev = __dev_get_by_index(&init_net, ifidx);
597 if (netdev->ieee802154_ptr) {
598 rdev = wpan_phy_to_rdev(
599 netdev->ieee802154_ptr->wpan_phy);
600 state->filter_wpan_phy = rdev->wpan_phy_idx;
608 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
611 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
612 struct cfg802154_registered_device *rdev;
616 state = kzalloc(sizeof(*state), GFP_KERNEL);
621 state->filter_wpan_phy = -1;
622 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
628 cb->args[0] = (long)state;
631 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
632 /* TODO net ns compare */
633 if (++idx <= state->start)
635 if (state->filter_wpan_phy != -1 &&
636 state->filter_wpan_phy != rdev->wpan_phy_idx)
638 /* attempt to fit multiple wpan_phy data chunks into the skb */
639 ret = nl802154_send_wpan_phy(rdev,
640 NL802154_CMD_NEW_WPAN_PHY,
642 NETLINK_CB(cb->skb).portid,
643 cb->nlh->nlmsg_seq, NLM_F_MULTI);
645 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
646 !skb->len && cb->min_dump_alloc < 4096) {
647 cb->min_dump_alloc = 4096;
663 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
665 kfree((void *)cb->args[0]);
669 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
672 struct cfg802154_registered_device *rdev = info->user_ptr[0];
674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
678 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
679 info->snd_portid, info->snd_seq, 0) < 0) {
684 return genlmsg_reply(msg, info);
687 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
689 return (u64)wpan_dev->identifier |
690 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
693 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
694 #include <net/ieee802154_netdev.h>
697 ieee802154_llsec_send_key_id(struct sk_buff *msg,
698 const struct ieee802154_llsec_key_id *desc)
700 struct nlattr *nl_dev_addr;
702 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
705 switch (desc->mode) {
706 case NL802154_KEY_ID_MODE_IMPLICIT:
707 nl_dev_addr = nla_nest_start(msg, NL802154_KEY_ID_ATTR_IMPLICIT);
711 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
712 desc->device_addr.pan_id) ||
713 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
714 desc->device_addr.mode))
717 switch (desc->device_addr.mode) {
718 case NL802154_DEV_ADDR_SHORT:
719 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
720 desc->device_addr.short_addr))
723 case NL802154_DEV_ADDR_EXTENDED:
724 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
725 desc->device_addr.extended_addr,
726 NL802154_DEV_ADDR_ATTR_PAD))
730 /* userspace should handle unknown */
734 nla_nest_end(msg, nl_dev_addr);
736 case NL802154_KEY_ID_MODE_INDEX:
738 case NL802154_KEY_ID_MODE_INDEX_SHORT:
739 /* TODO renmae short_source? */
740 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
744 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
745 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
746 desc->extended_source,
747 NL802154_KEY_ID_ATTR_PAD))
751 /* userspace should handle unknown */
755 /* TODO key_id to key_idx ? Check naming */
756 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
757 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
764 static int nl802154_get_llsec_params(struct sk_buff *msg,
765 struct cfg802154_registered_device *rdev,
766 struct wpan_dev *wpan_dev)
768 struct nlattr *nl_key_id;
769 struct ieee802154_llsec_params params;
772 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms);
776 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
777 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
778 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
779 params.frame_counter))
782 nl_key_id = nla_nest_start(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
786 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key);
790 nla_nest_end(msg, nl_key_id);
794 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
797 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
798 struct cfg802154_registered_device *rdev,
799 struct wpan_dev *wpan_dev)
801 struct net_device *dev = wpan_dev->netdev;
804 hdr = nl802154hdr_put(msg, portid, seq, flags,
805 NL802154_CMD_NEW_INTERFACE);
810 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
811 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
812 goto nla_put_failure;
814 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
815 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
816 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
817 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
818 nla_put_u32(msg, NL802154_ATTR_GENERATION,
819 rdev->devlist_generation ^
820 (cfg802154_rdev_list_generation << 2)))
821 goto nla_put_failure;
823 /* address settings */
824 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
825 wpan_dev->extended_addr,
826 NL802154_ATTR_PAD) ||
827 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
828 wpan_dev->short_addr) ||
829 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
830 goto nla_put_failure;
833 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
834 wpan_dev->frame_retries) ||
835 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
836 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
837 wpan_dev->csma_retries) ||
838 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
839 goto nla_put_failure;
841 /* listen before transmit */
842 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
843 goto nla_put_failure;
845 /* ackreq default behaviour */
846 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
847 goto nla_put_failure;
849 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
850 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
851 goto nla_put_failure;
852 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
854 genlmsg_end(msg, hdr);
858 genlmsg_cancel(msg, hdr);
863 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
867 int wp_start = cb->args[0];
868 int if_start = cb->args[1];
869 struct cfg802154_registered_device *rdev;
870 struct wpan_dev *wpan_dev;
873 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
874 /* TODO netns compare */
875 if (wp_idx < wp_start) {
881 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
882 if (if_idx < if_start) {
886 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
887 cb->nlh->nlmsg_seq, NLM_F_MULTI,
888 rdev, wpan_dev) < 0) {
899 cb->args[0] = wp_idx;
900 cb->args[1] = if_idx;
905 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
908 struct cfg802154_registered_device *rdev = info->user_ptr[0];
909 struct wpan_dev *wdev = info->user_ptr[1];
911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
915 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
921 return genlmsg_reply(msg, info);
924 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
926 struct cfg802154_registered_device *rdev = info->user_ptr[0];
927 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
928 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
930 /* TODO avoid failing a new interface
931 * creation due to pending removal?
934 if (!info->attrs[NL802154_ATTR_IFNAME])
937 if (info->attrs[NL802154_ATTR_IFTYPE]) {
938 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
939 if (type > NL802154_IFTYPE_MAX ||
940 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
944 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
945 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
947 if (!rdev->ops->add_virtual_intf)
950 return rdev_add_virtual_intf(rdev,
951 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
952 NET_NAME_USER, type, extended_addr);
955 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
957 struct cfg802154_registered_device *rdev = info->user_ptr[0];
958 struct wpan_dev *wpan_dev = info->user_ptr[1];
960 if (!rdev->ops->del_virtual_intf)
963 /* If we remove a wpan device without a netdev then clear
964 * user_ptr[1] so that nl802154_post_doit won't dereference it
965 * to check if it needs to do dev_put(). Otherwise it crashes
966 * since the wpan_dev has been freed, unlike with a netdev where
967 * we need the dev_put() for the netdev to really be freed.
969 if (!wpan_dev->netdev)
970 info->user_ptr[1] = NULL;
972 return rdev_del_virtual_intf(rdev, wpan_dev);
975 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
977 struct cfg802154_registered_device *rdev = info->user_ptr[0];
980 if (!info->attrs[NL802154_ATTR_PAGE] ||
981 !info->attrs[NL802154_ATTR_CHANNEL])
984 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
985 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
987 /* check 802.15.4 constraints */
988 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
989 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
992 return rdev_set_channel(rdev, page, channel);
995 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
997 struct cfg802154_registered_device *rdev = info->user_ptr[0];
998 struct wpan_phy_cca cca;
1000 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
1003 if (!info->attrs[NL802154_ATTR_CCA_MODE])
1006 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
1007 /* checking 802.15.4 constraints */
1008 if (cca.mode < NL802154_CCA_ENERGY ||
1009 cca.mode > NL802154_CCA_ATTR_MAX ||
1010 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1013 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1014 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1017 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1018 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1019 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1023 return rdev_set_cca_mode(rdev, &cca);
1026 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1028 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1032 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1035 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1038 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1040 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1041 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1042 return rdev_set_cca_ed_level(rdev, ed_level);
1048 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1050 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1054 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1057 if (!info->attrs[NL802154_ATTR_TX_POWER])
1060 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1062 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1063 if (power == rdev->wpan_phy.supported.tx_powers[i])
1064 return rdev_set_tx_power(rdev, power);
1070 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1072 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1073 struct net_device *dev = info->user_ptr[1];
1074 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1077 /* conflict here while tx/rx calls */
1078 if (netif_running(dev))
1081 if (wpan_dev->lowpan_dev) {
1082 if (netif_running(wpan_dev->lowpan_dev))
1086 /* don't change address fields on monitor */
1087 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1088 !info->attrs[NL802154_ATTR_PAN_ID])
1091 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1094 * I am not sure about to check here on broadcast pan_id.
1095 * Broadcast is a valid setting, comment from 802.15.4:
1096 * If this value is 0xffff, the device is not associated.
1098 * This could useful to simple deassociate an device.
1100 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1103 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1106 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1108 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1109 struct net_device *dev = info->user_ptr[1];
1110 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1113 /* conflict here while tx/rx calls */
1114 if (netif_running(dev))
1117 if (wpan_dev->lowpan_dev) {
1118 if (netif_running(wpan_dev->lowpan_dev))
1122 /* don't change address fields on monitor */
1123 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1124 !info->attrs[NL802154_ATTR_SHORT_ADDR])
1127 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1130 * I am not sure about to check here on broadcast short_addr.
1131 * Broadcast is a valid setting, comment from 802.15.4:
1132 * A value of 0xfffe indicates that the device has
1133 * associated but has not been allocated an address. A
1134 * value of 0xffff indicates that the device does not
1135 * have a short address.
1137 * I think we should allow to set these settings but
1138 * don't allow to allow socket communication with it.
1140 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1141 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1144 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1148 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1150 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1151 struct net_device *dev = info->user_ptr[1];
1152 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1155 /* should be set on netif open inside phy settings */
1156 if (netif_running(dev))
1159 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1160 !info->attrs[NL802154_ATTR_MAX_BE])
1163 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1164 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1166 /* check 802.15.4 constraints */
1167 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1168 min_be > rdev->wpan_phy.supported.max_minbe ||
1169 max_be < rdev->wpan_phy.supported.min_maxbe ||
1170 max_be > rdev->wpan_phy.supported.max_maxbe ||
1174 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1178 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1180 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1181 struct net_device *dev = info->user_ptr[1];
1182 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1183 u8 max_csma_backoffs;
1185 /* conflict here while other running iface settings */
1186 if (netif_running(dev))
1189 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1192 max_csma_backoffs = nla_get_u8(
1193 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1195 /* check 802.15.4 constraints */
1196 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1197 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1200 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1204 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1206 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1207 struct net_device *dev = info->user_ptr[1];
1208 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1209 s8 max_frame_retries;
1211 if (netif_running(dev))
1214 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1217 max_frame_retries = nla_get_s8(
1218 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1220 /* check 802.15.4 constraints */
1221 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1222 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1225 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1228 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1230 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1231 struct net_device *dev = info->user_ptr[1];
1232 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1235 if (netif_running(dev))
1238 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1241 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1243 if (mode != 0 && mode != 1)
1246 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1249 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1253 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1255 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1256 struct net_device *dev = info->user_ptr[1];
1257 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1260 if (netif_running(dev))
1263 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1266 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1268 if (ackreq != 0 && ackreq != 1)
1271 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1274 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1275 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1276 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1277 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1278 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1279 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1283 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1284 struct ieee802154_addr *addr)
1286 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1288 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla,
1289 nl802154_dev_addr_policy))
1292 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1293 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
1294 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1295 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1298 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1299 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1300 switch (addr->mode) {
1301 case NL802154_DEV_ADDR_SHORT:
1302 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1304 case NL802154_DEV_ADDR_EXTENDED:
1305 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1314 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1315 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1316 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1317 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1318 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1319 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1323 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1324 struct ieee802154_llsec_key_id *desc)
1326 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1328 if (!nla || nla_parse_nested(attrs, NL802154_KEY_ID_ATTR_MAX, nla,
1329 nl802154_key_id_policy))
1332 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1335 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1336 switch (desc->mode) {
1337 case NL802154_KEY_ID_MODE_IMPLICIT:
1338 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1341 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1342 &desc->device_addr) < 0)
1345 case NL802154_KEY_ID_MODE_INDEX:
1347 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1348 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1351 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1353 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1354 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1357 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1363 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1364 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1367 /* TODO change id to idx */
1368 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1374 static int nl802154_set_llsec_params(struct sk_buff *skb,
1375 struct genl_info *info)
1377 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1378 struct net_device *dev = info->user_ptr[1];
1379 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1380 struct ieee802154_llsec_params params;
1384 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1387 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1388 if (enabled != 0 && enabled != 1)
1391 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1392 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1395 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1396 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1401 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1404 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1405 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1406 if (params.out_level > NL802154_SECLEVEL_MAX)
1409 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1412 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1413 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1414 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1417 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed);
1420 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1422 struct cfg802154_registered_device *rdev,
1423 struct net_device *dev,
1424 const struct ieee802154_llsec_key_entry *key)
1427 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1428 struct nlattr *nl_key, *nl_key_id;
1430 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1434 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1435 goto nla_put_failure;
1437 nl_key = nla_nest_start(msg, NL802154_ATTR_SEC_KEY);
1439 goto nla_put_failure;
1441 nl_key_id = nla_nest_start(msg, NL802154_KEY_ATTR_ID);
1443 goto nla_put_failure;
1445 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1446 goto nla_put_failure;
1448 nla_nest_end(msg, nl_key_id);
1450 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1451 key->key->frame_types))
1452 goto nla_put_failure;
1454 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1455 /* TODO for each nested */
1456 memset(commands, 0, sizeof(commands));
1457 commands[7] = key->key->cmd_frame_ids;
1458 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1459 sizeof(commands), commands))
1460 goto nla_put_failure;
1463 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1465 goto nla_put_failure;
1467 nla_nest_end(msg, nl_key);
1468 genlmsg_end(msg, hdr);
1473 genlmsg_cancel(msg, hdr);
1478 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1480 struct cfg802154_registered_device *rdev = NULL;
1481 struct ieee802154_llsec_key_entry *key;
1482 struct ieee802154_llsec_table *table;
1483 struct wpan_dev *wpan_dev;
1486 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1490 if (!wpan_dev->netdev) {
1495 rdev_lock_llsec_table(rdev, wpan_dev);
1496 rdev_get_llsec_table(rdev, wpan_dev, &table);
1498 /* TODO make it like station dump */
1502 list_for_each_entry(key, &table->keys, list) {
1503 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1504 NETLINK_CB(cb->skb).portid,
1505 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1506 rdev, wpan_dev->netdev, key) < 0) {
1509 rdev_unlock_llsec_table(rdev, wpan_dev);
1517 rdev_unlock_llsec_table(rdev, wpan_dev);
1520 nl802154_finish_wpan_dev_dump(rdev);
1525 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1526 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1527 /* TODO handle it as for_each_nested and NLA_FLAG? */
1528 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1529 /* TODO handle it as for_each_nested, not static array? */
1530 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1531 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1534 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1536 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1537 struct net_device *dev = info->user_ptr[1];
1538 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1539 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1540 struct ieee802154_llsec_key key = { };
1541 struct ieee802154_llsec_key_id id = { };
1542 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1544 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1545 info->attrs[NL802154_ATTR_SEC_KEY],
1546 nl802154_key_policy))
1549 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1550 !attrs[NL802154_KEY_ATTR_BYTES])
1553 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1556 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1557 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1558 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1559 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1562 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1563 /* TODO for each nested */
1564 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1565 NL802154_CMD_FRAME_NR_IDS / 8);
1567 /* TODO understand the -EINVAL logic here? last condition */
1568 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1569 commands[4] || commands[5] || commands[6] ||
1570 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1573 key.cmd_frame_ids = commands[7];
1575 key.cmd_frame_ids = 0;
1578 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1580 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1583 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1586 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1588 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1589 struct net_device *dev = info->user_ptr[1];
1590 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1591 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1592 struct ieee802154_llsec_key_id id;
1594 if (nla_parse_nested(attrs, NL802154_KEY_ATTR_MAX,
1595 info->attrs[NL802154_ATTR_SEC_KEY],
1596 nl802154_key_policy))
1599 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1602 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1605 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1607 struct cfg802154_registered_device *rdev,
1608 struct net_device *dev,
1609 const struct ieee802154_llsec_device *dev_desc)
1612 struct nlattr *nl_device;
1614 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1618 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1619 goto nla_put_failure;
1621 nl_device = nla_nest_start(msg, NL802154_ATTR_SEC_DEVICE);
1623 goto nla_put_failure;
1625 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1626 dev_desc->frame_counter) ||
1627 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1628 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1629 dev_desc->short_addr) ||
1630 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1631 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1632 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1633 dev_desc->seclevel_exempt) ||
1634 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1635 goto nla_put_failure;
1637 nla_nest_end(msg, nl_device);
1638 genlmsg_end(msg, hdr);
1643 genlmsg_cancel(msg, hdr);
1648 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1650 struct cfg802154_registered_device *rdev = NULL;
1651 struct ieee802154_llsec_device *dev;
1652 struct ieee802154_llsec_table *table;
1653 struct wpan_dev *wpan_dev;
1656 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1660 if (!wpan_dev->netdev) {
1665 rdev_lock_llsec_table(rdev, wpan_dev);
1666 rdev_get_llsec_table(rdev, wpan_dev, &table);
1668 /* TODO make it like station dump */
1672 list_for_each_entry(dev, &table->devices, list) {
1673 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1674 NETLINK_CB(cb->skb).portid,
1675 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1676 rdev, wpan_dev->netdev, dev) < 0) {
1679 rdev_unlock_llsec_table(rdev, wpan_dev);
1687 rdev_unlock_llsec_table(rdev, wpan_dev);
1690 nl802154_finish_wpan_dev_dump(rdev);
1695 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1696 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1697 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1698 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1699 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1700 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1701 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1705 ieee802154_llsec_parse_device(struct nlattr *nla,
1706 struct ieee802154_llsec_device *dev)
1708 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1710 if (!nla || nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX, nla,
1711 nl802154_dev_policy))
1714 memset(dev, 0, sizeof(*dev));
1716 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1717 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1718 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1719 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1720 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1721 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1725 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1726 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1727 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1728 /* TODO rename hwaddr to extended_addr */
1729 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1730 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1731 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1733 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1734 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1740 static int nl802154_add_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1742 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1743 struct net_device *dev = info->user_ptr[1];
1744 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1745 struct ieee802154_llsec_device dev_desc;
1747 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1751 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1754 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1756 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1757 struct net_device *dev = info->user_ptr[1];
1758 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1759 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1760 __le64 extended_addr;
1762 if (nla_parse_nested(attrs, NL802154_DEV_ATTR_MAX,
1763 info->attrs[NL802154_ATTR_SEC_DEVICE],
1764 nl802154_dev_policy))
1767 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1770 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1771 return rdev_del_device(rdev, wpan_dev, extended_addr);
1774 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1776 struct cfg802154_registered_device *rdev,
1777 struct net_device *dev, __le64 extended_addr,
1778 const struct ieee802154_llsec_device_key *devkey)
1781 struct nlattr *nl_devkey, *nl_key_id;
1783 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1787 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1788 goto nla_put_failure;
1790 nl_devkey = nla_nest_start(msg, NL802154_ATTR_SEC_DEVKEY);
1792 goto nla_put_failure;
1794 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1795 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1796 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1797 devkey->frame_counter))
1798 goto nla_put_failure;
1800 nl_key_id = nla_nest_start(msg, NL802154_DEVKEY_ATTR_ID);
1802 goto nla_put_failure;
1804 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1805 goto nla_put_failure;
1807 nla_nest_end(msg, nl_key_id);
1808 nla_nest_end(msg, nl_devkey);
1809 genlmsg_end(msg, hdr);
1814 genlmsg_cancel(msg, hdr);
1819 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1821 struct cfg802154_registered_device *rdev = NULL;
1822 struct ieee802154_llsec_device_key *kpos;
1823 struct ieee802154_llsec_device *dpos;
1824 struct ieee802154_llsec_table *table;
1825 struct wpan_dev *wpan_dev;
1828 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1832 if (!wpan_dev->netdev) {
1837 rdev_lock_llsec_table(rdev, wpan_dev);
1838 rdev_get_llsec_table(rdev, wpan_dev, &table);
1840 /* TODO make it like station dump */
1844 /* TODO look if remove devkey and do some nested attribute */
1845 list_for_each_entry(dpos, &table->devices, list) {
1846 list_for_each_entry(kpos, &dpos->keys, list) {
1847 if (nl802154_send_devkey(skb,
1848 NL802154_CMD_NEW_SEC_LEVEL,
1849 NETLINK_CB(cb->skb).portid,
1857 rdev_unlock_llsec_table(rdev, wpan_dev);
1866 rdev_unlock_llsec_table(rdev, wpan_dev);
1869 nl802154_finish_wpan_dev_dump(rdev);
1874 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1875 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1876 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1877 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1880 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1882 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1883 struct net_device *dev = info->user_ptr[1];
1884 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1885 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1886 struct ieee802154_llsec_device_key key;
1887 __le64 extended_addr;
1889 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1890 nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1891 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1892 nl802154_devkey_policy) < 0)
1895 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1896 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1899 /* TODO change key.id ? */
1900 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1905 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1906 /* TODO change naming hwaddr -> extended_addr
1907 * check unique identifier short+pan OR extended_addr
1909 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1910 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1913 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1915 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1916 struct net_device *dev = info->user_ptr[1];
1917 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1918 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1919 struct ieee802154_llsec_device_key key;
1920 __le64 extended_addr;
1922 if (nla_parse_nested(attrs, NL802154_DEVKEY_ATTR_MAX,
1923 info->attrs[NL802154_ATTR_SEC_DEVKEY],
1924 nl802154_devkey_policy))
1927 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1930 /* TODO change key.id ? */
1931 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1935 /* TODO change naming hwaddr -> extended_addr
1936 * check unique identifier short+pan OR extended_addr
1938 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1939 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1942 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1944 struct cfg802154_registered_device *rdev,
1945 struct net_device *dev,
1946 const struct ieee802154_llsec_seclevel *sl)
1949 struct nlattr *nl_seclevel;
1951 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1955 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1956 goto nla_put_failure;
1958 nl_seclevel = nla_nest_start(msg, NL802154_ATTR_SEC_LEVEL);
1960 goto nla_put_failure;
1962 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1963 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1964 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1965 sl->device_override))
1966 goto nla_put_failure;
1968 if (sl->frame_type == NL802154_FRAME_CMD) {
1969 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1971 goto nla_put_failure;
1974 nla_nest_end(msg, nl_seclevel);
1975 genlmsg_end(msg, hdr);
1980 genlmsg_cancel(msg, hdr);
1985 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
1987 struct cfg802154_registered_device *rdev = NULL;
1988 struct ieee802154_llsec_seclevel *sl;
1989 struct ieee802154_llsec_table *table;
1990 struct wpan_dev *wpan_dev;
1993 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1997 if (!wpan_dev->netdev) {
2002 rdev_lock_llsec_table(rdev, wpan_dev);
2003 rdev_get_llsec_table(rdev, wpan_dev, &table);
2005 /* TODO make it like station dump */
2009 list_for_each_entry(sl, &table->security_levels, list) {
2010 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2011 NETLINK_CB(cb->skb).portid,
2012 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2013 rdev, wpan_dev->netdev, sl) < 0) {
2016 rdev_unlock_llsec_table(rdev, wpan_dev);
2024 rdev_unlock_llsec_table(rdev, wpan_dev);
2027 nl802154_finish_wpan_dev_dump(rdev);
2032 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2033 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2034 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2035 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2036 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2040 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2042 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2044 if (!nla || nla_parse_nested(attrs, NL802154_SECLEVEL_ATTR_MAX, nla,
2045 nl802154_seclevel_policy))
2048 memset(sl, 0, sizeof(*sl));
2050 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2051 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2052 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2055 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2056 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2057 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2058 if (sl->frame_type > NL802154_FRAME_MAX ||
2059 (sl->device_override != 0 && sl->device_override != 1))
2062 if (sl->frame_type == NL802154_FRAME_CMD) {
2063 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2066 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2067 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2074 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2075 struct genl_info *info)
2077 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2078 struct net_device *dev = info->user_ptr[1];
2079 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2080 struct ieee802154_llsec_seclevel sl;
2082 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2086 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2089 static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2090 struct genl_info *info)
2092 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2093 struct net_device *dev = info->user_ptr[1];
2094 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2095 struct ieee802154_llsec_seclevel sl;
2097 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2098 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2102 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2104 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2106 #define NL802154_FLAG_NEED_WPAN_PHY 0x01
2107 #define NL802154_FLAG_NEED_NETDEV 0x02
2108 #define NL802154_FLAG_NEED_RTNL 0x04
2109 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2110 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2111 NL802154_FLAG_CHECK_NETDEV_UP)
2112 #define NL802154_FLAG_NEED_WPAN_DEV 0x10
2113 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2114 NL802154_FLAG_CHECK_NETDEV_UP)
2116 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2117 struct genl_info *info)
2119 struct cfg802154_registered_device *rdev;
2120 struct wpan_dev *wpan_dev;
2121 struct net_device *dev;
2122 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2127 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2128 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2132 return PTR_ERR(rdev);
2134 info->user_ptr[0] = rdev;
2135 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2136 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2138 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2140 if (IS_ERR(wpan_dev)) {
2143 return PTR_ERR(wpan_dev);
2146 dev = wpan_dev->netdev;
2147 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2149 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2156 info->user_ptr[1] = dev;
2158 info->user_ptr[1] = wpan_dev;
2162 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2163 !netif_running(dev)) {
2172 info->user_ptr[0] = rdev;
2178 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2179 struct genl_info *info)
2181 if (info->user_ptr[1]) {
2182 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2183 struct wpan_dev *wpan_dev = info->user_ptr[1];
2185 if (wpan_dev->netdev)
2186 dev_put(wpan_dev->netdev);
2188 dev_put(info->user_ptr[1]);
2192 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2196 static const struct genl_ops nl802154_ops[] = {
2198 .cmd = NL802154_CMD_GET_WPAN_PHY,
2199 .doit = nl802154_get_wpan_phy,
2200 .dumpit = nl802154_dump_wpan_phy,
2201 .done = nl802154_dump_wpan_phy_done,
2202 .policy = nl802154_policy,
2203 /* can be retrieved by unprivileged users */
2204 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2205 NL802154_FLAG_NEED_RTNL,
2208 .cmd = NL802154_CMD_GET_INTERFACE,
2209 .doit = nl802154_get_interface,
2210 .dumpit = nl802154_dump_interface,
2211 .policy = nl802154_policy,
2212 /* can be retrieved by unprivileged users */
2213 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2214 NL802154_FLAG_NEED_RTNL,
2217 .cmd = NL802154_CMD_NEW_INTERFACE,
2218 .doit = nl802154_new_interface,
2219 .policy = nl802154_policy,
2220 .flags = GENL_ADMIN_PERM,
2221 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2222 NL802154_FLAG_NEED_RTNL,
2225 .cmd = NL802154_CMD_DEL_INTERFACE,
2226 .doit = nl802154_del_interface,
2227 .policy = nl802154_policy,
2228 .flags = GENL_ADMIN_PERM,
2229 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2230 NL802154_FLAG_NEED_RTNL,
2233 .cmd = NL802154_CMD_SET_CHANNEL,
2234 .doit = nl802154_set_channel,
2235 .policy = nl802154_policy,
2236 .flags = GENL_ADMIN_PERM,
2237 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2238 NL802154_FLAG_NEED_RTNL,
2241 .cmd = NL802154_CMD_SET_CCA_MODE,
2242 .doit = nl802154_set_cca_mode,
2243 .policy = nl802154_policy,
2244 .flags = GENL_ADMIN_PERM,
2245 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2246 NL802154_FLAG_NEED_RTNL,
2249 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2250 .doit = nl802154_set_cca_ed_level,
2251 .policy = nl802154_policy,
2252 .flags = GENL_ADMIN_PERM,
2253 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2254 NL802154_FLAG_NEED_RTNL,
2257 .cmd = NL802154_CMD_SET_TX_POWER,
2258 .doit = nl802154_set_tx_power,
2259 .policy = nl802154_policy,
2260 .flags = GENL_ADMIN_PERM,
2261 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2262 NL802154_FLAG_NEED_RTNL,
2265 .cmd = NL802154_CMD_SET_PAN_ID,
2266 .doit = nl802154_set_pan_id,
2267 .policy = nl802154_policy,
2268 .flags = GENL_ADMIN_PERM,
2269 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2270 NL802154_FLAG_NEED_RTNL,
2273 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2274 .doit = nl802154_set_short_addr,
2275 .policy = nl802154_policy,
2276 .flags = GENL_ADMIN_PERM,
2277 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2278 NL802154_FLAG_NEED_RTNL,
2281 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2282 .doit = nl802154_set_backoff_exponent,
2283 .policy = nl802154_policy,
2284 .flags = GENL_ADMIN_PERM,
2285 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2286 NL802154_FLAG_NEED_RTNL,
2289 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2290 .doit = nl802154_set_max_csma_backoffs,
2291 .policy = nl802154_policy,
2292 .flags = GENL_ADMIN_PERM,
2293 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2294 NL802154_FLAG_NEED_RTNL,
2297 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2298 .doit = nl802154_set_max_frame_retries,
2299 .policy = nl802154_policy,
2300 .flags = GENL_ADMIN_PERM,
2301 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2302 NL802154_FLAG_NEED_RTNL,
2305 .cmd = NL802154_CMD_SET_LBT_MODE,
2306 .doit = nl802154_set_lbt_mode,
2307 .policy = nl802154_policy,
2308 .flags = GENL_ADMIN_PERM,
2309 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2310 NL802154_FLAG_NEED_RTNL,
2313 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2314 .doit = nl802154_set_ackreq_default,
2315 .policy = nl802154_policy,
2316 .flags = GENL_ADMIN_PERM,
2317 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2318 NL802154_FLAG_NEED_RTNL,
2320 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2322 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2323 .doit = nl802154_set_llsec_params,
2324 .policy = nl802154_policy,
2325 .flags = GENL_ADMIN_PERM,
2326 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2327 NL802154_FLAG_NEED_RTNL,
2330 .cmd = NL802154_CMD_GET_SEC_KEY,
2331 /* TODO .doit by matching key id? */
2332 .dumpit = nl802154_dump_llsec_key,
2333 .policy = nl802154_policy,
2334 .flags = GENL_ADMIN_PERM,
2335 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2336 NL802154_FLAG_NEED_RTNL,
2339 .cmd = NL802154_CMD_NEW_SEC_KEY,
2340 .doit = nl802154_add_llsec_key,
2341 .policy = nl802154_policy,
2342 .flags = GENL_ADMIN_PERM,
2343 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2344 NL802154_FLAG_NEED_RTNL,
2347 .cmd = NL802154_CMD_DEL_SEC_KEY,
2348 .doit = nl802154_del_llsec_key,
2349 .policy = nl802154_policy,
2350 .flags = GENL_ADMIN_PERM,
2351 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2352 NL802154_FLAG_NEED_RTNL,
2354 /* TODO unique identifier must short+pan OR extended_addr */
2356 .cmd = NL802154_CMD_GET_SEC_DEV,
2357 /* TODO .doit by matching extended_addr? */
2358 .dumpit = nl802154_dump_llsec_dev,
2359 .policy = nl802154_policy,
2360 .flags = GENL_ADMIN_PERM,
2361 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2362 NL802154_FLAG_NEED_RTNL,
2365 .cmd = NL802154_CMD_NEW_SEC_DEV,
2366 .doit = nl802154_add_llsec_dev,
2367 .policy = nl802154_policy,
2368 .flags = GENL_ADMIN_PERM,
2369 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2370 NL802154_FLAG_NEED_RTNL,
2373 .cmd = NL802154_CMD_DEL_SEC_DEV,
2374 .doit = nl802154_del_llsec_dev,
2375 .policy = nl802154_policy,
2376 .flags = GENL_ADMIN_PERM,
2377 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2378 NL802154_FLAG_NEED_RTNL,
2380 /* TODO remove complete devkey, put it as nested? */
2382 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2383 /* TODO doit by matching ??? */
2384 .dumpit = nl802154_dump_llsec_devkey,
2385 .policy = nl802154_policy,
2386 .flags = GENL_ADMIN_PERM,
2387 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2388 NL802154_FLAG_NEED_RTNL,
2391 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2392 .doit = nl802154_add_llsec_devkey,
2393 .policy = nl802154_policy,
2394 .flags = GENL_ADMIN_PERM,
2395 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2396 NL802154_FLAG_NEED_RTNL,
2399 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2400 .doit = nl802154_del_llsec_devkey,
2401 .policy = nl802154_policy,
2402 .flags = GENL_ADMIN_PERM,
2403 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2404 NL802154_FLAG_NEED_RTNL,
2407 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2408 /* TODO .doit by matching frame_type? */
2409 .dumpit = nl802154_dump_llsec_seclevel,
2410 .policy = nl802154_policy,
2411 .flags = GENL_ADMIN_PERM,
2412 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2413 NL802154_FLAG_NEED_RTNL,
2416 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2417 .doit = nl802154_add_llsec_seclevel,
2418 .policy = nl802154_policy,
2419 .flags = GENL_ADMIN_PERM,
2420 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2421 NL802154_FLAG_NEED_RTNL,
2424 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2425 /* TODO match frame_type only? */
2426 .doit = nl802154_del_llsec_seclevel,
2427 .policy = nl802154_policy,
2428 .flags = GENL_ADMIN_PERM,
2429 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2430 NL802154_FLAG_NEED_RTNL,
2432 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2435 /* initialisation/exit functions */
2436 int nl802154_init(void)
2438 return genl_register_family_with_ops_groups(&nl802154_fam, nl802154_ops,
2442 void nl802154_exit(void)
2444 genl_unregister_family(&nl802154_fam);