1 // SPDX-License-Identifier: GPL-2.0-only
5 * Alexander Aring <aar@pengutronix.de>
7 * Based on: net/wireless/nl80211.c
10 #include <linux/rtnetlink.h>
12 #include <net/cfg802154.h>
13 #include <net/genetlink.h>
14 #include <net/mac802154.h>
15 #include <net/netlink.h>
16 #include <net/nl802154.h>
23 /* the netlink family */
24 static struct genl_family nl802154_fam;
26 /* multicast groups */
27 enum nl802154_multicast_groups {
28 NL802154_MCGRP_CONFIG,
31 static const struct genl_multicast_group nl802154_mcgrps[] = {
32 [NL802154_MCGRP_CONFIG] = { .name = "config", },
35 /* returns ERR_PTR values */
36 static struct wpan_dev *
37 __cfg802154_wpan_dev_from_attrs(struct net *netns, struct nlattr **attrs)
39 struct cfg802154_registered_device *rdev;
40 struct wpan_dev *result = NULL;
41 bool have_ifidx = attrs[NL802154_ATTR_IFINDEX];
42 bool have_wpan_dev_id = attrs[NL802154_ATTR_WPAN_DEV];
44 int wpan_phy_idx = -1;
49 if (!have_ifidx && !have_wpan_dev_id)
50 return ERR_PTR(-EINVAL);
53 ifidx = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
54 if (have_wpan_dev_id) {
55 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
56 wpan_phy_idx = wpan_dev_id >> 32;
59 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
60 struct wpan_dev *wpan_dev;
62 if (wpan_phy_net(&rdev->wpan_phy) != netns)
65 if (have_wpan_dev_id && rdev->wpan_phy_idx != wpan_phy_idx)
68 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
69 if (have_ifidx && wpan_dev->netdev &&
70 wpan_dev->netdev->ifindex == ifidx) {
74 if (have_wpan_dev_id &&
75 wpan_dev->identifier == (u32)wpan_dev_id) {
88 return ERR_PTR(-ENODEV);
91 static struct cfg802154_registered_device *
92 __cfg802154_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
94 struct cfg802154_registered_device *rdev = NULL, *tmp;
95 struct net_device *netdev;
99 if (!attrs[NL802154_ATTR_WPAN_PHY] &&
100 !attrs[NL802154_ATTR_IFINDEX] &&
101 !attrs[NL802154_ATTR_WPAN_DEV])
102 return ERR_PTR(-EINVAL);
104 if (attrs[NL802154_ATTR_WPAN_PHY])
105 rdev = cfg802154_rdev_by_wpan_phy_idx(
106 nla_get_u32(attrs[NL802154_ATTR_WPAN_PHY]));
108 if (attrs[NL802154_ATTR_WPAN_DEV]) {
109 u64 wpan_dev_id = nla_get_u64(attrs[NL802154_ATTR_WPAN_DEV]);
110 struct wpan_dev *wpan_dev;
113 tmp = cfg802154_rdev_by_wpan_phy_idx(wpan_dev_id >> 32);
115 /* make sure wpan_dev exists */
116 list_for_each_entry(wpan_dev, &tmp->wpan_dev_list, list) {
117 if (wpan_dev->identifier != (u32)wpan_dev_id)
126 if (rdev && tmp != rdev)
127 return ERR_PTR(-EINVAL);
132 if (attrs[NL802154_ATTR_IFINDEX]) {
133 int ifindex = nla_get_u32(attrs[NL802154_ATTR_IFINDEX]);
135 netdev = __dev_get_by_index(netns, ifindex);
137 if (netdev->ieee802154_ptr)
138 tmp = wpan_phy_to_rdev(
139 netdev->ieee802154_ptr->wpan_phy);
143 /* not wireless device -- return error */
145 return ERR_PTR(-EINVAL);
147 /* mismatch -- return error */
148 if (rdev && tmp != rdev)
149 return ERR_PTR(-EINVAL);
156 return ERR_PTR(-ENODEV);
158 if (netns != wpan_phy_net(&rdev->wpan_phy))
159 return ERR_PTR(-ENODEV);
164 /* This function returns a pointer to the driver
165 * that the genl_info item that is passed refers to.
167 * The result of this can be a PTR_ERR and hence must
168 * be checked with IS_ERR() for errors.
170 static struct cfg802154_registered_device *
171 cfg802154_get_dev_from_info(struct net *netns, struct genl_info *info)
173 return __cfg802154_rdev_from_attrs(netns, info->attrs);
176 /* policy for the attributes */
177 static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
178 [NL802154_ATTR_WPAN_PHY] = { .type = NLA_U32 },
179 [NL802154_ATTR_WPAN_PHY_NAME] = { .type = NLA_NUL_STRING,
182 [NL802154_ATTR_IFINDEX] = { .type = NLA_U32 },
183 [NL802154_ATTR_IFTYPE] = { .type = NLA_U32 },
184 [NL802154_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
186 [NL802154_ATTR_WPAN_DEV] = { .type = NLA_U64 },
188 [NL802154_ATTR_PAGE] = { .type = NLA_U8, },
189 [NL802154_ATTR_CHANNEL] = { .type = NLA_U8, },
191 [NL802154_ATTR_TX_POWER] = { .type = NLA_S32, },
193 [NL802154_ATTR_CCA_MODE] = { .type = NLA_U32, },
194 [NL802154_ATTR_CCA_OPT] = { .type = NLA_U32, },
195 [NL802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
197 [NL802154_ATTR_SUPPORTED_CHANNEL] = { .type = NLA_U32, },
199 [NL802154_ATTR_PAN_ID] = { .type = NLA_U16, },
200 [NL802154_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
201 [NL802154_ATTR_SHORT_ADDR] = { .type = NLA_U16, },
203 [NL802154_ATTR_MIN_BE] = { .type = NLA_U8, },
204 [NL802154_ATTR_MAX_BE] = { .type = NLA_U8, },
205 [NL802154_ATTR_MAX_CSMA_BACKOFFS] = { .type = NLA_U8, },
207 [NL802154_ATTR_MAX_FRAME_RETRIES] = { .type = NLA_S8, },
209 [NL802154_ATTR_LBT_MODE] = { .type = NLA_U8, },
211 [NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
213 [NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
215 [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
217 [NL802154_ATTR_PID] = { .type = NLA_U32 },
218 [NL802154_ATTR_NETNS_FD] = { .type = NLA_U32 },
219 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
220 [NL802154_ATTR_SEC_ENABLED] = { .type = NLA_U8, },
221 [NL802154_ATTR_SEC_OUT_LEVEL] = { .type = NLA_U32, },
222 [NL802154_ATTR_SEC_OUT_KEY_ID] = { .type = NLA_NESTED, },
223 [NL802154_ATTR_SEC_FRAME_COUNTER] = { .type = NLA_U32 },
225 [NL802154_ATTR_SEC_LEVEL] = { .type = NLA_NESTED },
226 [NL802154_ATTR_SEC_DEVICE] = { .type = NLA_NESTED },
227 [NL802154_ATTR_SEC_DEVKEY] = { .type = NLA_NESTED },
228 [NL802154_ATTR_SEC_KEY] = { .type = NLA_NESTED },
229 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
232 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
234 nl802154_prepare_wpan_dev_dump(struct sk_buff *skb,
235 struct netlink_callback *cb,
236 struct cfg802154_registered_device **rdev,
237 struct wpan_dev **wpan_dev)
244 err = nlmsg_parse_deprecated(cb->nlh,
245 GENL_HDRLEN + nl802154_fam.hdrsize,
246 genl_family_attrbuf(&nl802154_fam),
247 nl802154_fam.maxattr,
248 nl802154_policy, NULL);
252 *wpan_dev = __cfg802154_wpan_dev_from_attrs(sock_net(skb->sk),
253 genl_family_attrbuf(&nl802154_fam));
254 if (IS_ERR(*wpan_dev)) {
255 err = PTR_ERR(*wpan_dev);
258 *rdev = wpan_phy_to_rdev((*wpan_dev)->wpan_phy);
259 /* 0 is the first index - add 1 to parse only once */
260 cb->args[0] = (*rdev)->wpan_phy_idx + 1;
261 cb->args[1] = (*wpan_dev)->identifier;
263 /* subtract the 1 again here */
264 struct wpan_phy *wpan_phy = wpan_phy_idx_to_wpan_phy(cb->args[0] - 1);
265 struct wpan_dev *tmp;
271 *rdev = wpan_phy_to_rdev(wpan_phy);
274 list_for_each_entry(tmp, &(*rdev)->wpan_dev_list, list) {
275 if (tmp->identifier == cb->args[1]) {
294 nl802154_finish_wpan_dev_dump(struct cfg802154_registered_device *rdev)
298 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
300 /* message building helper */
301 static inline void *nl802154hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
304 /* since there is no private header just add the generic one */
305 return genlmsg_put(skb, portid, seq, &nl802154_fam, flags, cmd);
309 nl802154_put_flags(struct sk_buff *msg, int attr, u32 mask)
311 struct nlattr *nl_flags = nla_nest_start_noflag(msg, attr);
319 if ((mask & 1) && nla_put_flag(msg, i))
326 nla_nest_end(msg, nl_flags);
331 nl802154_send_wpan_phy_channels(struct cfg802154_registered_device *rdev,
334 struct nlattr *nl_page;
337 nl_page = nla_nest_start_noflag(msg, NL802154_ATTR_CHANNELS_SUPPORTED);
341 for (page = 0; page <= IEEE802154_MAX_PAGE; page++) {
342 if (nla_put_u32(msg, NL802154_ATTR_SUPPORTED_CHANNEL,
343 rdev->wpan_phy.supported.channels[page]))
346 nla_nest_end(msg, nl_page);
352 nl802154_put_capabilities(struct sk_buff *msg,
353 struct cfg802154_registered_device *rdev)
355 const struct wpan_phy_supported *caps = &rdev->wpan_phy.supported;
356 struct nlattr *nl_caps, *nl_channels;
359 nl_caps = nla_nest_start_noflag(msg, NL802154_ATTR_WPAN_PHY_CAPS);
363 nl_channels = nla_nest_start_noflag(msg, NL802154_CAP_ATTR_CHANNELS);
367 for (i = 0; i <= IEEE802154_MAX_PAGE; i++) {
368 if (caps->channels[i]) {
369 if (nl802154_put_flags(msg, i, caps->channels[i]))
374 nla_nest_end(msg, nl_channels);
376 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
377 struct nlattr *nl_ed_lvls;
379 nl_ed_lvls = nla_nest_start_noflag(msg,
380 NL802154_CAP_ATTR_CCA_ED_LEVELS);
384 for (i = 0; i < caps->cca_ed_levels_size; i++) {
385 if (nla_put_s32(msg, i, caps->cca_ed_levels[i]))
389 nla_nest_end(msg, nl_ed_lvls);
392 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
393 struct nlattr *nl_tx_pwrs;
395 nl_tx_pwrs = nla_nest_start_noflag(msg,
396 NL802154_CAP_ATTR_TX_POWERS);
400 for (i = 0; i < caps->tx_powers_size; i++) {
401 if (nla_put_s32(msg, i, caps->tx_powers[i]))
405 nla_nest_end(msg, nl_tx_pwrs);
408 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
409 if (nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_MODES,
411 nl802154_put_flags(msg, NL802154_CAP_ATTR_CCA_OPTS,
416 if (nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MINBE, caps->min_minbe) ||
417 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MINBE, caps->max_minbe) ||
418 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_MAXBE, caps->min_maxbe) ||
419 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_MAXBE, caps->max_maxbe) ||
420 nla_put_u8(msg, NL802154_CAP_ATTR_MIN_CSMA_BACKOFFS,
421 caps->min_csma_backoffs) ||
422 nla_put_u8(msg, NL802154_CAP_ATTR_MAX_CSMA_BACKOFFS,
423 caps->max_csma_backoffs) ||
424 nla_put_s8(msg, NL802154_CAP_ATTR_MIN_FRAME_RETRIES,
425 caps->min_frame_retries) ||
426 nla_put_s8(msg, NL802154_CAP_ATTR_MAX_FRAME_RETRIES,
427 caps->max_frame_retries) ||
428 nl802154_put_flags(msg, NL802154_CAP_ATTR_IFTYPES,
430 nla_put_u32(msg, NL802154_CAP_ATTR_LBT, caps->lbt))
433 nla_nest_end(msg, nl_caps);
438 static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
439 enum nl802154_commands cmd,
440 struct sk_buff *msg, u32 portid, u32 seq,
443 struct nlattr *nl_cmds;
447 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
451 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
452 nla_put_string(msg, NL802154_ATTR_WPAN_PHY_NAME,
453 wpan_phy_name(&rdev->wpan_phy)) ||
454 nla_put_u32(msg, NL802154_ATTR_GENERATION,
455 cfg802154_rdev_list_generation))
456 goto nla_put_failure;
458 if (cmd != NL802154_CMD_NEW_WPAN_PHY)
463 /* current channel settings */
464 if (nla_put_u8(msg, NL802154_ATTR_PAGE,
465 rdev->wpan_phy.current_page) ||
466 nla_put_u8(msg, NL802154_ATTR_CHANNEL,
467 rdev->wpan_phy.current_channel))
468 goto nla_put_failure;
470 /* TODO remove this behaviour, we still keep support it for a while
471 * so users can change the behaviour to the new one.
473 if (nl802154_send_wpan_phy_channels(rdev, msg))
474 goto nla_put_failure;
477 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE) {
478 if (nla_put_u32(msg, NL802154_ATTR_CCA_MODE,
479 rdev->wpan_phy.cca.mode))
480 goto nla_put_failure;
482 if (rdev->wpan_phy.cca.mode == NL802154_CCA_ENERGY_CARRIER) {
483 if (nla_put_u32(msg, NL802154_ATTR_CCA_OPT,
484 rdev->wpan_phy.cca.opt))
485 goto nla_put_failure;
489 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER) {
490 if (nla_put_s32(msg, NL802154_ATTR_TX_POWER,
491 rdev->wpan_phy.transmit_power))
492 goto nla_put_failure;
495 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL) {
496 if (nla_put_s32(msg, NL802154_ATTR_CCA_ED_LEVEL,
497 rdev->wpan_phy.cca_ed_level))
498 goto nla_put_failure;
501 if (nl802154_put_capabilities(msg, rdev))
502 goto nla_put_failure;
504 nl_cmds = nla_nest_start_noflag(msg, NL802154_ATTR_SUPPORTED_COMMANDS);
506 goto nla_put_failure;
511 if (rdev->ops->op) { \
513 if (nla_put_u32(msg, i, NL802154_CMD_ ## n)) \
514 goto nla_put_failure; \
518 CMD(add_virtual_intf, NEW_INTERFACE);
519 CMD(del_virtual_intf, DEL_INTERFACE);
520 CMD(set_channel, SET_CHANNEL);
521 CMD(set_pan_id, SET_PAN_ID);
522 CMD(set_short_addr, SET_SHORT_ADDR);
523 CMD(set_backoff_exponent, SET_BACKOFF_EXPONENT);
524 CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
525 CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
526 CMD(set_lbt_mode, SET_LBT_MODE);
527 CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
529 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
530 CMD(set_tx_power, SET_TX_POWER);
532 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)
533 CMD(set_cca_ed_level, SET_CCA_ED_LEVEL);
535 if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE)
536 CMD(set_cca_mode, SET_CCA_MODE);
539 nla_nest_end(msg, nl_cmds);
542 genlmsg_end(msg, hdr);
546 genlmsg_cancel(msg, hdr);
550 struct nl802154_dump_wpan_phy_state {
556 static int nl802154_dump_wpan_phy_parse(struct sk_buff *skb,
557 struct netlink_callback *cb,
558 struct nl802154_dump_wpan_phy_state *state)
560 struct nlattr **tb = genl_family_attrbuf(&nl802154_fam);
561 int ret = nlmsg_parse_deprecated(cb->nlh,
562 GENL_HDRLEN + nl802154_fam.hdrsize,
563 tb, nl802154_fam.maxattr,
564 nl802154_policy, NULL);
566 /* TODO check if we can handle error here,
567 * we have no backward compatibility
572 if (tb[NL802154_ATTR_WPAN_PHY])
573 state->filter_wpan_phy = nla_get_u32(tb[NL802154_ATTR_WPAN_PHY]);
574 if (tb[NL802154_ATTR_WPAN_DEV])
575 state->filter_wpan_phy = nla_get_u64(tb[NL802154_ATTR_WPAN_DEV]) >> 32;
576 if (tb[NL802154_ATTR_IFINDEX]) {
577 struct net_device *netdev;
578 struct cfg802154_registered_device *rdev;
579 int ifidx = nla_get_u32(tb[NL802154_ATTR_IFINDEX]);
581 netdev = __dev_get_by_index(&init_net, ifidx);
584 if (netdev->ieee802154_ptr) {
585 rdev = wpan_phy_to_rdev(
586 netdev->ieee802154_ptr->wpan_phy);
587 state->filter_wpan_phy = rdev->wpan_phy_idx;
595 nl802154_dump_wpan_phy(struct sk_buff *skb, struct netlink_callback *cb)
598 struct nl802154_dump_wpan_phy_state *state = (void *)cb->args[0];
599 struct cfg802154_registered_device *rdev;
603 state = kzalloc(sizeof(*state), GFP_KERNEL);
608 state->filter_wpan_phy = -1;
609 ret = nl802154_dump_wpan_phy_parse(skb, cb, state);
615 cb->args[0] = (long)state;
618 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
619 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
621 if (++idx <= state->start)
623 if (state->filter_wpan_phy != -1 &&
624 state->filter_wpan_phy != rdev->wpan_phy_idx)
626 /* attempt to fit multiple wpan_phy data chunks into the skb */
627 ret = nl802154_send_wpan_phy(rdev,
628 NL802154_CMD_NEW_WPAN_PHY,
630 NETLINK_CB(cb->skb).portid,
631 cb->nlh->nlmsg_seq, NLM_F_MULTI);
633 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
634 !skb->len && cb->min_dump_alloc < 4096) {
635 cb->min_dump_alloc = 4096;
651 static int nl802154_dump_wpan_phy_done(struct netlink_callback *cb)
653 kfree((void *)cb->args[0]);
657 static int nl802154_get_wpan_phy(struct sk_buff *skb, struct genl_info *info)
660 struct cfg802154_registered_device *rdev = info->user_ptr[0];
662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
666 if (nl802154_send_wpan_phy(rdev, NL802154_CMD_NEW_WPAN_PHY, msg,
667 info->snd_portid, info->snd_seq, 0) < 0) {
672 return genlmsg_reply(msg, info);
675 static inline u64 wpan_dev_id(struct wpan_dev *wpan_dev)
677 return (u64)wpan_dev->identifier |
678 ((u64)wpan_phy_to_rdev(wpan_dev->wpan_phy)->wpan_phy_idx << 32);
681 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
682 #include <net/ieee802154_netdev.h>
685 ieee802154_llsec_send_key_id(struct sk_buff *msg,
686 const struct ieee802154_llsec_key_id *desc)
688 struct nlattr *nl_dev_addr;
690 if (nla_put_u32(msg, NL802154_KEY_ID_ATTR_MODE, desc->mode))
693 switch (desc->mode) {
694 case NL802154_KEY_ID_MODE_IMPLICIT:
695 nl_dev_addr = nla_nest_start_noflag(msg,
696 NL802154_KEY_ID_ATTR_IMPLICIT);
700 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_PAN_ID,
701 desc->device_addr.pan_id) ||
702 nla_put_u32(msg, NL802154_DEV_ADDR_ATTR_MODE,
703 desc->device_addr.mode))
706 switch (desc->device_addr.mode) {
707 case NL802154_DEV_ADDR_SHORT:
708 if (nla_put_le16(msg, NL802154_DEV_ADDR_ATTR_SHORT,
709 desc->device_addr.short_addr))
712 case NL802154_DEV_ADDR_EXTENDED:
713 if (nla_put_le64(msg, NL802154_DEV_ADDR_ATTR_EXTENDED,
714 desc->device_addr.extended_addr,
715 NL802154_DEV_ADDR_ATTR_PAD))
719 /* userspace should handle unknown */
723 nla_nest_end(msg, nl_dev_addr);
725 case NL802154_KEY_ID_MODE_INDEX:
727 case NL802154_KEY_ID_MODE_INDEX_SHORT:
728 /* TODO renmae short_source? */
729 if (nla_put_le32(msg, NL802154_KEY_ID_ATTR_SOURCE_SHORT,
733 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
734 if (nla_put_le64(msg, NL802154_KEY_ID_ATTR_SOURCE_EXTENDED,
735 desc->extended_source,
736 NL802154_KEY_ID_ATTR_PAD))
740 /* userspace should handle unknown */
744 /* TODO key_id to key_idx ? Check naming */
745 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
746 if (nla_put_u8(msg, NL802154_KEY_ID_ATTR_INDEX, desc->id))
753 static int nl802154_get_llsec_params(struct sk_buff *msg,
754 struct cfg802154_registered_device *rdev,
755 struct wpan_dev *wpan_dev)
757 struct nlattr *nl_key_id;
758 struct ieee802154_llsec_params params;
761 ret = rdev_get_llsec_params(rdev, wpan_dev, ¶ms);
765 if (nla_put_u8(msg, NL802154_ATTR_SEC_ENABLED, params.enabled) ||
766 nla_put_u32(msg, NL802154_ATTR_SEC_OUT_LEVEL, params.out_level) ||
767 nla_put_be32(msg, NL802154_ATTR_SEC_FRAME_COUNTER,
768 params.frame_counter))
771 nl_key_id = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_OUT_KEY_ID);
775 ret = ieee802154_llsec_send_key_id(msg, ¶ms.out_key);
779 nla_nest_end(msg, nl_key_id);
783 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
786 nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
787 struct cfg802154_registered_device *rdev,
788 struct wpan_dev *wpan_dev)
790 struct net_device *dev = wpan_dev->netdev;
793 hdr = nl802154hdr_put(msg, portid, seq, flags,
794 NL802154_CMD_NEW_INTERFACE);
799 (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex) ||
800 nla_put_string(msg, NL802154_ATTR_IFNAME, dev->name)))
801 goto nla_put_failure;
803 if (nla_put_u32(msg, NL802154_ATTR_WPAN_PHY, rdev->wpan_phy_idx) ||
804 nla_put_u32(msg, NL802154_ATTR_IFTYPE, wpan_dev->iftype) ||
805 nla_put_u64_64bit(msg, NL802154_ATTR_WPAN_DEV,
806 wpan_dev_id(wpan_dev), NL802154_ATTR_PAD) ||
807 nla_put_u32(msg, NL802154_ATTR_GENERATION,
808 rdev->devlist_generation ^
809 (cfg802154_rdev_list_generation << 2)))
810 goto nla_put_failure;
812 /* address settings */
813 if (nla_put_le64(msg, NL802154_ATTR_EXTENDED_ADDR,
814 wpan_dev->extended_addr,
815 NL802154_ATTR_PAD) ||
816 nla_put_le16(msg, NL802154_ATTR_SHORT_ADDR,
817 wpan_dev->short_addr) ||
818 nla_put_le16(msg, NL802154_ATTR_PAN_ID, wpan_dev->pan_id))
819 goto nla_put_failure;
822 if (nla_put_s8(msg, NL802154_ATTR_MAX_FRAME_RETRIES,
823 wpan_dev->frame_retries) ||
824 nla_put_u8(msg, NL802154_ATTR_MAX_BE, wpan_dev->max_be) ||
825 nla_put_u8(msg, NL802154_ATTR_MAX_CSMA_BACKOFFS,
826 wpan_dev->csma_retries) ||
827 nla_put_u8(msg, NL802154_ATTR_MIN_BE, wpan_dev->min_be))
828 goto nla_put_failure;
830 /* listen before transmit */
831 if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
832 goto nla_put_failure;
834 /* ackreq default behaviour */
835 if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
836 goto nla_put_failure;
838 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
839 if (nl802154_get_llsec_params(msg, rdev, wpan_dev) < 0)
840 goto nla_put_failure;
841 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
843 genlmsg_end(msg, hdr);
847 genlmsg_cancel(msg, hdr);
852 nl802154_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
856 int wp_start = cb->args[0];
857 int if_start = cb->args[1];
858 struct cfg802154_registered_device *rdev;
859 struct wpan_dev *wpan_dev;
862 list_for_each_entry(rdev, &cfg802154_rdev_list, list) {
863 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), sock_net(skb->sk)))
865 if (wp_idx < wp_start) {
871 list_for_each_entry(wpan_dev, &rdev->wpan_dev_list, list) {
872 if (if_idx < if_start) {
876 if (nl802154_send_iface(skb, NETLINK_CB(cb->skb).portid,
877 cb->nlh->nlmsg_seq, NLM_F_MULTI,
878 rdev, wpan_dev) < 0) {
889 cb->args[0] = wp_idx;
890 cb->args[1] = if_idx;
895 static int nl802154_get_interface(struct sk_buff *skb, struct genl_info *info)
898 struct cfg802154_registered_device *rdev = info->user_ptr[0];
899 struct wpan_dev *wdev = info->user_ptr[1];
901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
905 if (nl802154_send_iface(msg, info->snd_portid, info->snd_seq, 0,
911 return genlmsg_reply(msg, info);
914 static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
916 struct cfg802154_registered_device *rdev = info->user_ptr[0];
917 enum nl802154_iftype type = NL802154_IFTYPE_UNSPEC;
918 __le64 extended_addr = cpu_to_le64(0x0000000000000000ULL);
920 /* TODO avoid failing a new interface
921 * creation due to pending removal?
924 if (!info->attrs[NL802154_ATTR_IFNAME])
927 if (info->attrs[NL802154_ATTR_IFTYPE]) {
928 type = nla_get_u32(info->attrs[NL802154_ATTR_IFTYPE]);
929 if (type > NL802154_IFTYPE_MAX ||
930 !(rdev->wpan_phy.supported.iftypes & BIT(type)))
934 if (info->attrs[NL802154_ATTR_EXTENDED_ADDR])
935 extended_addr = nla_get_le64(info->attrs[NL802154_ATTR_EXTENDED_ADDR]);
937 if (!rdev->ops->add_virtual_intf)
940 return rdev_add_virtual_intf(rdev,
941 nla_data(info->attrs[NL802154_ATTR_IFNAME]),
942 NET_NAME_USER, type, extended_addr);
945 static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
947 struct cfg802154_registered_device *rdev = info->user_ptr[0];
948 struct wpan_dev *wpan_dev = info->user_ptr[1];
950 if (!rdev->ops->del_virtual_intf)
953 /* If we remove a wpan device without a netdev then clear
954 * user_ptr[1] so that nl802154_post_doit won't dereference it
955 * to check if it needs to do dev_put(). Otherwise it crashes
956 * since the wpan_dev has been freed, unlike with a netdev where
957 * we need the dev_put() for the netdev to really be freed.
959 if (!wpan_dev->netdev)
960 info->user_ptr[1] = NULL;
962 return rdev_del_virtual_intf(rdev, wpan_dev);
965 static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
967 struct cfg802154_registered_device *rdev = info->user_ptr[0];
970 if (!info->attrs[NL802154_ATTR_PAGE] ||
971 !info->attrs[NL802154_ATTR_CHANNEL])
974 page = nla_get_u8(info->attrs[NL802154_ATTR_PAGE]);
975 channel = nla_get_u8(info->attrs[NL802154_ATTR_CHANNEL]);
977 /* check 802.15.4 constraints */
978 if (page > IEEE802154_MAX_PAGE || channel > IEEE802154_MAX_CHANNEL ||
979 !(rdev->wpan_phy.supported.channels[page] & BIT(channel)))
982 return rdev_set_channel(rdev, page, channel);
985 static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
987 struct cfg802154_registered_device *rdev = info->user_ptr[0];
988 struct wpan_phy_cca cca;
990 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_MODE))
993 if (!info->attrs[NL802154_ATTR_CCA_MODE])
996 cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
997 /* checking 802.15.4 constraints */
998 if (cca.mode < NL802154_CCA_ENERGY ||
999 cca.mode > NL802154_CCA_ATTR_MAX ||
1000 !(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
1003 if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
1004 if (!info->attrs[NL802154_ATTR_CCA_OPT])
1007 cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
1008 if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
1009 !(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
1013 return rdev_set_cca_mode(rdev, &cca);
1016 static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info)
1018 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1022 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL))
1025 if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL])
1028 ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]);
1030 for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) {
1031 if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i])
1032 return rdev_set_cca_ed_level(rdev, ed_level);
1038 static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info)
1040 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1044 if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
1047 if (!info->attrs[NL802154_ATTR_TX_POWER])
1050 power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
1052 for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
1053 if (power == rdev->wpan_phy.supported.tx_powers[i])
1054 return rdev_set_tx_power(rdev, power);
1060 static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
1062 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1063 struct net_device *dev = info->user_ptr[1];
1064 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1067 /* conflict here while tx/rx calls */
1068 if (netif_running(dev))
1071 if (wpan_dev->lowpan_dev) {
1072 if (netif_running(wpan_dev->lowpan_dev))
1076 /* don't change address fields on monitor */
1077 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1078 !info->attrs[NL802154_ATTR_PAN_ID])
1081 pan_id = nla_get_le16(info->attrs[NL802154_ATTR_PAN_ID]);
1084 * I am not sure about to check here on broadcast pan_id.
1085 * Broadcast is a valid setting, comment from 802.15.4:
1086 * If this value is 0xffff, the device is not associated.
1088 * This could useful to simple deassociate an device.
1090 if (pan_id == cpu_to_le16(IEEE802154_PAN_ID_BROADCAST))
1093 return rdev_set_pan_id(rdev, wpan_dev, pan_id);
1096 static int nl802154_set_short_addr(struct sk_buff *skb, struct genl_info *info)
1098 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1099 struct net_device *dev = info->user_ptr[1];
1100 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1103 /* conflict here while tx/rx calls */
1104 if (netif_running(dev))
1107 if (wpan_dev->lowpan_dev) {
1108 if (netif_running(wpan_dev->lowpan_dev))
1112 /* don't change address fields on monitor */
1113 if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR ||
1114 !info->attrs[NL802154_ATTR_SHORT_ADDR])
1117 short_addr = nla_get_le16(info->attrs[NL802154_ATTR_SHORT_ADDR]);
1120 * I am not sure about to check here on broadcast short_addr.
1121 * Broadcast is a valid setting, comment from 802.15.4:
1122 * A value of 0xfffe indicates that the device has
1123 * associated but has not been allocated an address. A
1124 * value of 0xffff indicates that the device does not
1125 * have a short address.
1127 * I think we should allow to set these settings but
1128 * don't allow to allow socket communication with it.
1130 if (short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC) ||
1131 short_addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST))
1134 return rdev_set_short_addr(rdev, wpan_dev, short_addr);
1138 nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
1140 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1141 struct net_device *dev = info->user_ptr[1];
1142 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1145 /* should be set on netif open inside phy settings */
1146 if (netif_running(dev))
1149 if (!info->attrs[NL802154_ATTR_MIN_BE] ||
1150 !info->attrs[NL802154_ATTR_MAX_BE])
1153 min_be = nla_get_u8(info->attrs[NL802154_ATTR_MIN_BE]);
1154 max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
1156 /* check 802.15.4 constraints */
1157 if (min_be < rdev->wpan_phy.supported.min_minbe ||
1158 min_be > rdev->wpan_phy.supported.max_minbe ||
1159 max_be < rdev->wpan_phy.supported.min_maxbe ||
1160 max_be > rdev->wpan_phy.supported.max_maxbe ||
1164 return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
1168 nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
1170 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1171 struct net_device *dev = info->user_ptr[1];
1172 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1173 u8 max_csma_backoffs;
1175 /* conflict here while other running iface settings */
1176 if (netif_running(dev))
1179 if (!info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS])
1182 max_csma_backoffs = nla_get_u8(
1183 info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
1185 /* check 802.15.4 constraints */
1186 if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
1187 max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
1190 return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
1194 nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
1196 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1197 struct net_device *dev = info->user_ptr[1];
1198 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1199 s8 max_frame_retries;
1201 if (netif_running(dev))
1204 if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
1207 max_frame_retries = nla_get_s8(
1208 info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
1210 /* check 802.15.4 constraints */
1211 if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
1212 max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
1215 return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
1218 static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
1220 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1221 struct net_device *dev = info->user_ptr[1];
1222 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1225 if (netif_running(dev))
1228 if (!info->attrs[NL802154_ATTR_LBT_MODE])
1231 mode = nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
1233 if (mode != 0 && mode != 1)
1236 if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
1239 return rdev_set_lbt_mode(rdev, wpan_dev, mode);
1243 nl802154_set_ackreq_default(struct sk_buff *skb, struct genl_info *info)
1245 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1246 struct net_device *dev = info->user_ptr[1];
1247 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1250 if (netif_running(dev))
1253 if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
1256 ackreq = nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
1258 if (ackreq != 0 && ackreq != 1)
1261 return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
1264 static int nl802154_wpan_phy_netns(struct sk_buff *skb, struct genl_info *info)
1266 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1270 if (info->attrs[NL802154_ATTR_PID]) {
1271 u32 pid = nla_get_u32(info->attrs[NL802154_ATTR_PID]);
1273 net = get_net_ns_by_pid(pid);
1274 } else if (info->attrs[NL802154_ATTR_NETNS_FD]) {
1275 u32 fd = nla_get_u32(info->attrs[NL802154_ATTR_NETNS_FD]);
1277 net = get_net_ns_by_fd(fd);
1283 return PTR_ERR(net);
1287 /* check if anything to do */
1288 if (!net_eq(wpan_phy_net(&rdev->wpan_phy), net))
1289 err = cfg802154_switch_netns(rdev, net);
1295 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
1296 static const struct nla_policy nl802154_dev_addr_policy[NL802154_DEV_ADDR_ATTR_MAX + 1] = {
1297 [NL802154_DEV_ADDR_ATTR_PAN_ID] = { .type = NLA_U16 },
1298 [NL802154_DEV_ADDR_ATTR_MODE] = { .type = NLA_U32 },
1299 [NL802154_DEV_ADDR_ATTR_SHORT] = { .type = NLA_U16 },
1300 [NL802154_DEV_ADDR_ATTR_EXTENDED] = { .type = NLA_U64 },
1304 ieee802154_llsec_parse_dev_addr(struct nlattr *nla,
1305 struct ieee802154_addr *addr)
1307 struct nlattr *attrs[NL802154_DEV_ADDR_ATTR_MAX + 1];
1309 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ADDR_ATTR_MAX, nla, nl802154_dev_addr_policy, NULL))
1312 if (!attrs[NL802154_DEV_ADDR_ATTR_PAN_ID] ||
1313 !attrs[NL802154_DEV_ADDR_ATTR_MODE] ||
1314 !(attrs[NL802154_DEV_ADDR_ATTR_SHORT] ||
1315 attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]))
1318 addr->pan_id = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_PAN_ID]);
1319 addr->mode = nla_get_u32(attrs[NL802154_DEV_ADDR_ATTR_MODE]);
1320 switch (addr->mode) {
1321 case NL802154_DEV_ADDR_SHORT:
1322 addr->short_addr = nla_get_le16(attrs[NL802154_DEV_ADDR_ATTR_SHORT]);
1324 case NL802154_DEV_ADDR_EXTENDED:
1325 addr->extended_addr = nla_get_le64(attrs[NL802154_DEV_ADDR_ATTR_EXTENDED]);
1334 static const struct nla_policy nl802154_key_id_policy[NL802154_KEY_ID_ATTR_MAX + 1] = {
1335 [NL802154_KEY_ID_ATTR_MODE] = { .type = NLA_U32 },
1336 [NL802154_KEY_ID_ATTR_INDEX] = { .type = NLA_U8 },
1337 [NL802154_KEY_ID_ATTR_IMPLICIT] = { .type = NLA_NESTED },
1338 [NL802154_KEY_ID_ATTR_SOURCE_SHORT] = { .type = NLA_U32 },
1339 [NL802154_KEY_ID_ATTR_SOURCE_EXTENDED] = { .type = NLA_U64 },
1343 ieee802154_llsec_parse_key_id(struct nlattr *nla,
1344 struct ieee802154_llsec_key_id *desc)
1346 struct nlattr *attrs[NL802154_KEY_ID_ATTR_MAX + 1];
1348 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_KEY_ID_ATTR_MAX, nla, nl802154_key_id_policy, NULL))
1351 if (!attrs[NL802154_KEY_ID_ATTR_MODE])
1354 desc->mode = nla_get_u32(attrs[NL802154_KEY_ID_ATTR_MODE]);
1355 switch (desc->mode) {
1356 case NL802154_KEY_ID_MODE_IMPLICIT:
1357 if (!attrs[NL802154_KEY_ID_ATTR_IMPLICIT])
1360 if (ieee802154_llsec_parse_dev_addr(attrs[NL802154_KEY_ID_ATTR_IMPLICIT],
1361 &desc->device_addr) < 0)
1364 case NL802154_KEY_ID_MODE_INDEX:
1366 case NL802154_KEY_ID_MODE_INDEX_SHORT:
1367 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT])
1370 desc->short_source = nla_get_le32(attrs[NL802154_KEY_ID_ATTR_SOURCE_SHORT]);
1372 case NL802154_KEY_ID_MODE_INDEX_EXTENDED:
1373 if (!attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED])
1376 desc->extended_source = nla_get_le64(attrs[NL802154_KEY_ID_ATTR_SOURCE_EXTENDED]);
1382 if (desc->mode != NL802154_KEY_ID_MODE_IMPLICIT) {
1383 if (!attrs[NL802154_KEY_ID_ATTR_INDEX])
1386 /* TODO change id to idx */
1387 desc->id = nla_get_u8(attrs[NL802154_KEY_ID_ATTR_INDEX]);
1393 static int nl802154_set_llsec_params(struct sk_buff *skb,
1394 struct genl_info *info)
1396 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1397 struct net_device *dev = info->user_ptr[1];
1398 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1399 struct ieee802154_llsec_params params;
1403 if (info->attrs[NL802154_ATTR_SEC_ENABLED]) {
1406 enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1407 if (enabled != 0 && enabled != 1)
1410 params.enabled = nla_get_u8(info->attrs[NL802154_ATTR_SEC_ENABLED]);
1411 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
1414 if (info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID]) {
1415 ret = ieee802154_llsec_parse_key_id(info->attrs[NL802154_ATTR_SEC_OUT_KEY_ID],
1420 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
1423 if (info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]) {
1424 params.out_level = nla_get_u32(info->attrs[NL802154_ATTR_SEC_OUT_LEVEL]);
1425 if (params.out_level > NL802154_SECLEVEL_MAX)
1428 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
1431 if (info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]) {
1432 params.frame_counter = nla_get_be32(info->attrs[NL802154_ATTR_SEC_FRAME_COUNTER]);
1433 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
1436 return rdev_set_llsec_params(rdev, wpan_dev, ¶ms, changed);
1439 static int nl802154_send_key(struct sk_buff *msg, u32 cmd, u32 portid,
1441 struct cfg802154_registered_device *rdev,
1442 struct net_device *dev,
1443 const struct ieee802154_llsec_key_entry *key)
1446 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32];
1447 struct nlattr *nl_key, *nl_key_id;
1449 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1453 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1454 goto nla_put_failure;
1456 nl_key = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_KEY);
1458 goto nla_put_failure;
1460 nl_key_id = nla_nest_start_noflag(msg, NL802154_KEY_ATTR_ID);
1462 goto nla_put_failure;
1464 if (ieee802154_llsec_send_key_id(msg, &key->id) < 0)
1465 goto nla_put_failure;
1467 nla_nest_end(msg, nl_key_id);
1469 if (nla_put_u8(msg, NL802154_KEY_ATTR_USAGE_FRAMES,
1470 key->key->frame_types))
1471 goto nla_put_failure;
1473 if (key->key->frame_types & BIT(NL802154_FRAME_CMD)) {
1474 /* TODO for each nested */
1475 memset(commands, 0, sizeof(commands));
1476 commands[7] = key->key->cmd_frame_ids;
1477 if (nla_put(msg, NL802154_KEY_ATTR_USAGE_CMDS,
1478 sizeof(commands), commands))
1479 goto nla_put_failure;
1482 if (nla_put(msg, NL802154_KEY_ATTR_BYTES, NL802154_KEY_SIZE,
1484 goto nla_put_failure;
1486 nla_nest_end(msg, nl_key);
1487 genlmsg_end(msg, hdr);
1492 genlmsg_cancel(msg, hdr);
1497 nl802154_dump_llsec_key(struct sk_buff *skb, struct netlink_callback *cb)
1499 struct cfg802154_registered_device *rdev = NULL;
1500 struct ieee802154_llsec_key_entry *key;
1501 struct ieee802154_llsec_table *table;
1502 struct wpan_dev *wpan_dev;
1505 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1509 if (!wpan_dev->netdev) {
1514 rdev_lock_llsec_table(rdev, wpan_dev);
1515 rdev_get_llsec_table(rdev, wpan_dev, &table);
1517 /* TODO make it like station dump */
1521 list_for_each_entry(key, &table->keys, list) {
1522 if (nl802154_send_key(skb, NL802154_CMD_NEW_SEC_KEY,
1523 NETLINK_CB(cb->skb).portid,
1524 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1525 rdev, wpan_dev->netdev, key) < 0) {
1528 rdev_unlock_llsec_table(rdev, wpan_dev);
1536 rdev_unlock_llsec_table(rdev, wpan_dev);
1539 nl802154_finish_wpan_dev_dump(rdev);
1544 static const struct nla_policy nl802154_key_policy[NL802154_KEY_ATTR_MAX + 1] = {
1545 [NL802154_KEY_ATTR_ID] = { NLA_NESTED },
1546 /* TODO handle it as for_each_nested and NLA_FLAG? */
1547 [NL802154_KEY_ATTR_USAGE_FRAMES] = { NLA_U8 },
1548 /* TODO handle it as for_each_nested, not static array? */
1549 [NL802154_KEY_ATTR_USAGE_CMDS] = { .len = NL802154_CMD_FRAME_NR_IDS / 8 },
1550 [NL802154_KEY_ATTR_BYTES] = { .len = NL802154_KEY_SIZE },
1553 static int nl802154_add_llsec_key(struct sk_buff *skb, struct genl_info *info)
1555 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1556 struct net_device *dev = info->user_ptr[1];
1557 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1558 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1559 struct ieee802154_llsec_key key = { };
1560 struct ieee802154_llsec_key_id id = { };
1561 u32 commands[NL802154_CMD_FRAME_NR_IDS / 32] = { };
1563 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
1566 if (!attrs[NL802154_KEY_ATTR_USAGE_FRAMES] ||
1567 !attrs[NL802154_KEY_ATTR_BYTES])
1570 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1573 key.frame_types = nla_get_u8(attrs[NL802154_KEY_ATTR_USAGE_FRAMES]);
1574 if (key.frame_types > BIT(NL802154_FRAME_MAX) ||
1575 ((key.frame_types & BIT(NL802154_FRAME_CMD)) &&
1576 !attrs[NL802154_KEY_ATTR_USAGE_CMDS]))
1579 if (attrs[NL802154_KEY_ATTR_USAGE_CMDS]) {
1580 /* TODO for each nested */
1581 nla_memcpy(commands, attrs[NL802154_KEY_ATTR_USAGE_CMDS],
1582 NL802154_CMD_FRAME_NR_IDS / 8);
1584 /* TODO understand the -EINVAL logic here? last condition */
1585 if (commands[0] || commands[1] || commands[2] || commands[3] ||
1586 commands[4] || commands[5] || commands[6] ||
1587 commands[7] > BIT(NL802154_CMD_FRAME_MAX))
1590 key.cmd_frame_ids = commands[7];
1592 key.cmd_frame_ids = 0;
1595 nla_memcpy(key.key, attrs[NL802154_KEY_ATTR_BYTES], NL802154_KEY_SIZE);
1597 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1600 return rdev_add_llsec_key(rdev, wpan_dev, &id, &key);
1603 static int nl802154_del_llsec_key(struct sk_buff *skb, struct genl_info *info)
1605 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1606 struct net_device *dev = info->user_ptr[1];
1607 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1608 struct nlattr *attrs[NL802154_KEY_ATTR_MAX + 1];
1609 struct ieee802154_llsec_key_id id;
1611 if (nla_parse_nested_deprecated(attrs, NL802154_KEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_KEY], nl802154_key_policy, info->extack))
1614 if (ieee802154_llsec_parse_key_id(attrs[NL802154_KEY_ATTR_ID], &id) < 0)
1617 return rdev_del_llsec_key(rdev, wpan_dev, &id);
1620 static int nl802154_send_device(struct sk_buff *msg, u32 cmd, u32 portid,
1622 struct cfg802154_registered_device *rdev,
1623 struct net_device *dev,
1624 const struct ieee802154_llsec_device *dev_desc)
1627 struct nlattr *nl_device;
1629 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1633 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1634 goto nla_put_failure;
1636 nl_device = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVICE);
1638 goto nla_put_failure;
1640 if (nla_put_u32(msg, NL802154_DEV_ATTR_FRAME_COUNTER,
1641 dev_desc->frame_counter) ||
1642 nla_put_le16(msg, NL802154_DEV_ATTR_PAN_ID, dev_desc->pan_id) ||
1643 nla_put_le16(msg, NL802154_DEV_ATTR_SHORT_ADDR,
1644 dev_desc->short_addr) ||
1645 nla_put_le64(msg, NL802154_DEV_ATTR_EXTENDED_ADDR,
1646 dev_desc->hwaddr, NL802154_DEV_ATTR_PAD) ||
1647 nla_put_u8(msg, NL802154_DEV_ATTR_SECLEVEL_EXEMPT,
1648 dev_desc->seclevel_exempt) ||
1649 nla_put_u32(msg, NL802154_DEV_ATTR_KEY_MODE, dev_desc->key_mode))
1650 goto nla_put_failure;
1652 nla_nest_end(msg, nl_device);
1653 genlmsg_end(msg, hdr);
1658 genlmsg_cancel(msg, hdr);
1663 nl802154_dump_llsec_dev(struct sk_buff *skb, struct netlink_callback *cb)
1665 struct cfg802154_registered_device *rdev = NULL;
1666 struct ieee802154_llsec_device *dev;
1667 struct ieee802154_llsec_table *table;
1668 struct wpan_dev *wpan_dev;
1671 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1675 if (!wpan_dev->netdev) {
1680 rdev_lock_llsec_table(rdev, wpan_dev);
1681 rdev_get_llsec_table(rdev, wpan_dev, &table);
1683 /* TODO make it like station dump */
1687 list_for_each_entry(dev, &table->devices, list) {
1688 if (nl802154_send_device(skb, NL802154_CMD_NEW_SEC_LEVEL,
1689 NETLINK_CB(cb->skb).portid,
1690 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1691 rdev, wpan_dev->netdev, dev) < 0) {
1694 rdev_unlock_llsec_table(rdev, wpan_dev);
1702 rdev_unlock_llsec_table(rdev, wpan_dev);
1705 nl802154_finish_wpan_dev_dump(rdev);
1710 static const struct nla_policy nl802154_dev_policy[NL802154_DEV_ATTR_MAX + 1] = {
1711 [NL802154_DEV_ATTR_FRAME_COUNTER] = { NLA_U32 },
1712 [NL802154_DEV_ATTR_PAN_ID] = { .type = NLA_U16 },
1713 [NL802154_DEV_ATTR_SHORT_ADDR] = { .type = NLA_U16 },
1714 [NL802154_DEV_ATTR_EXTENDED_ADDR] = { .type = NLA_U64 },
1715 [NL802154_DEV_ATTR_SECLEVEL_EXEMPT] = { NLA_U8 },
1716 [NL802154_DEV_ATTR_KEY_MODE] = { NLA_U32 },
1720 ieee802154_llsec_parse_device(struct nlattr *nla,
1721 struct ieee802154_llsec_device *dev)
1723 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1725 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, nla, nl802154_dev_policy, NULL))
1728 memset(dev, 0, sizeof(*dev));
1730 if (!attrs[NL802154_DEV_ATTR_FRAME_COUNTER] ||
1731 !attrs[NL802154_DEV_ATTR_PAN_ID] ||
1732 !attrs[NL802154_DEV_ATTR_SHORT_ADDR] ||
1733 !attrs[NL802154_DEV_ATTR_EXTENDED_ADDR] ||
1734 !attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT] ||
1735 !attrs[NL802154_DEV_ATTR_KEY_MODE])
1739 dev->frame_counter = nla_get_u32(attrs[NL802154_DEV_ATTR_FRAME_COUNTER]);
1740 dev->pan_id = nla_get_le16(attrs[NL802154_DEV_ATTR_PAN_ID]);
1741 dev->short_addr = nla_get_le16(attrs[NL802154_DEV_ATTR_SHORT_ADDR]);
1742 /* TODO rename hwaddr to extended_addr */
1743 dev->hwaddr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1744 dev->seclevel_exempt = nla_get_u8(attrs[NL802154_DEV_ATTR_SECLEVEL_EXEMPT]);
1745 dev->key_mode = nla_get_u32(attrs[NL802154_DEV_ATTR_KEY_MODE]);
1747 if (dev->key_mode > NL802154_DEVKEY_MAX ||
1748 (dev->seclevel_exempt != 0 && dev->seclevel_exempt != 1))
1754 static int nl802154_add_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 ieee802154_llsec_device dev_desc;
1761 if (ieee802154_llsec_parse_device(info->attrs[NL802154_ATTR_SEC_DEVICE],
1765 return rdev_add_device(rdev, wpan_dev, &dev_desc);
1768 static int nl802154_del_llsec_dev(struct sk_buff *skb, struct genl_info *info)
1770 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1771 struct net_device *dev = info->user_ptr[1];
1772 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1773 struct nlattr *attrs[NL802154_DEV_ATTR_MAX + 1];
1774 __le64 extended_addr;
1776 if (nla_parse_nested_deprecated(attrs, NL802154_DEV_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVICE], nl802154_dev_policy, info->extack))
1779 if (!attrs[NL802154_DEV_ATTR_EXTENDED_ADDR])
1782 extended_addr = nla_get_le64(attrs[NL802154_DEV_ATTR_EXTENDED_ADDR]);
1783 return rdev_del_device(rdev, wpan_dev, extended_addr);
1786 static int nl802154_send_devkey(struct sk_buff *msg, u32 cmd, u32 portid,
1788 struct cfg802154_registered_device *rdev,
1789 struct net_device *dev, __le64 extended_addr,
1790 const struct ieee802154_llsec_device_key *devkey)
1793 struct nlattr *nl_devkey, *nl_key_id;
1795 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1799 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1800 goto nla_put_failure;
1802 nl_devkey = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_DEVKEY);
1804 goto nla_put_failure;
1806 if (nla_put_le64(msg, NL802154_DEVKEY_ATTR_EXTENDED_ADDR,
1807 extended_addr, NL802154_DEVKEY_ATTR_PAD) ||
1808 nla_put_u32(msg, NL802154_DEVKEY_ATTR_FRAME_COUNTER,
1809 devkey->frame_counter))
1810 goto nla_put_failure;
1812 nl_key_id = nla_nest_start_noflag(msg, NL802154_DEVKEY_ATTR_ID);
1814 goto nla_put_failure;
1816 if (ieee802154_llsec_send_key_id(msg, &devkey->key_id) < 0)
1817 goto nla_put_failure;
1819 nla_nest_end(msg, nl_key_id);
1820 nla_nest_end(msg, nl_devkey);
1821 genlmsg_end(msg, hdr);
1826 genlmsg_cancel(msg, hdr);
1831 nl802154_dump_llsec_devkey(struct sk_buff *skb, struct netlink_callback *cb)
1833 struct cfg802154_registered_device *rdev = NULL;
1834 struct ieee802154_llsec_device_key *kpos;
1835 struct ieee802154_llsec_device *dpos;
1836 struct ieee802154_llsec_table *table;
1837 struct wpan_dev *wpan_dev;
1840 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
1844 if (!wpan_dev->netdev) {
1849 rdev_lock_llsec_table(rdev, wpan_dev);
1850 rdev_get_llsec_table(rdev, wpan_dev, &table);
1852 /* TODO make it like station dump */
1856 /* TODO look if remove devkey and do some nested attribute */
1857 list_for_each_entry(dpos, &table->devices, list) {
1858 list_for_each_entry(kpos, &dpos->keys, list) {
1859 if (nl802154_send_devkey(skb,
1860 NL802154_CMD_NEW_SEC_LEVEL,
1861 NETLINK_CB(cb->skb).portid,
1869 rdev_unlock_llsec_table(rdev, wpan_dev);
1878 rdev_unlock_llsec_table(rdev, wpan_dev);
1881 nl802154_finish_wpan_dev_dump(rdev);
1886 static const struct nla_policy nl802154_devkey_policy[NL802154_DEVKEY_ATTR_MAX + 1] = {
1887 [NL802154_DEVKEY_ATTR_FRAME_COUNTER] = { NLA_U32 },
1888 [NL802154_DEVKEY_ATTR_EXTENDED_ADDR] = { NLA_U64 },
1889 [NL802154_DEVKEY_ATTR_ID] = { NLA_NESTED },
1892 static int nl802154_add_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1894 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1895 struct net_device *dev = info->user_ptr[1];
1896 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1897 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1898 struct ieee802154_llsec_device_key key;
1899 __le64 extended_addr;
1901 if (!info->attrs[NL802154_ATTR_SEC_DEVKEY] ||
1902 nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack) < 0)
1905 if (!attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER] ||
1906 !attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1909 /* TODO change key.id ? */
1910 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1915 key.frame_counter = nla_get_u32(attrs[NL802154_DEVKEY_ATTR_FRAME_COUNTER]);
1916 /* TODO change naming hwaddr -> extended_addr
1917 * check unique identifier short+pan OR extended_addr
1919 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1920 return rdev_add_devkey(rdev, wpan_dev, extended_addr, &key);
1923 static int nl802154_del_llsec_devkey(struct sk_buff *skb, struct genl_info *info)
1925 struct cfg802154_registered_device *rdev = info->user_ptr[0];
1926 struct net_device *dev = info->user_ptr[1];
1927 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
1928 struct nlattr *attrs[NL802154_DEVKEY_ATTR_MAX + 1];
1929 struct ieee802154_llsec_device_key key;
1930 __le64 extended_addr;
1932 if (nla_parse_nested_deprecated(attrs, NL802154_DEVKEY_ATTR_MAX, info->attrs[NL802154_ATTR_SEC_DEVKEY], nl802154_devkey_policy, info->extack))
1935 if (!attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR])
1938 /* TODO change key.id ? */
1939 if (ieee802154_llsec_parse_key_id(attrs[NL802154_DEVKEY_ATTR_ID],
1943 /* TODO change naming hwaddr -> extended_addr
1944 * check unique identifier short+pan OR extended_addr
1946 extended_addr = nla_get_le64(attrs[NL802154_DEVKEY_ATTR_EXTENDED_ADDR]);
1947 return rdev_del_devkey(rdev, wpan_dev, extended_addr, &key);
1950 static int nl802154_send_seclevel(struct sk_buff *msg, u32 cmd, u32 portid,
1952 struct cfg802154_registered_device *rdev,
1953 struct net_device *dev,
1954 const struct ieee802154_llsec_seclevel *sl)
1957 struct nlattr *nl_seclevel;
1959 hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
1963 if (nla_put_u32(msg, NL802154_ATTR_IFINDEX, dev->ifindex))
1964 goto nla_put_failure;
1966 nl_seclevel = nla_nest_start_noflag(msg, NL802154_ATTR_SEC_LEVEL);
1968 goto nla_put_failure;
1970 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_FRAME, sl->frame_type) ||
1971 nla_put_u32(msg, NL802154_SECLEVEL_ATTR_LEVELS, sl->sec_levels) ||
1972 nla_put_u8(msg, NL802154_SECLEVEL_ATTR_DEV_OVERRIDE,
1973 sl->device_override))
1974 goto nla_put_failure;
1976 if (sl->frame_type == NL802154_FRAME_CMD) {
1977 if (nla_put_u32(msg, NL802154_SECLEVEL_ATTR_CMD_FRAME,
1979 goto nla_put_failure;
1982 nla_nest_end(msg, nl_seclevel);
1983 genlmsg_end(msg, hdr);
1988 genlmsg_cancel(msg, hdr);
1993 nl802154_dump_llsec_seclevel(struct sk_buff *skb, struct netlink_callback *cb)
1995 struct cfg802154_registered_device *rdev = NULL;
1996 struct ieee802154_llsec_seclevel *sl;
1997 struct ieee802154_llsec_table *table;
1998 struct wpan_dev *wpan_dev;
2001 err = nl802154_prepare_wpan_dev_dump(skb, cb, &rdev, &wpan_dev);
2005 if (!wpan_dev->netdev) {
2010 rdev_lock_llsec_table(rdev, wpan_dev);
2011 rdev_get_llsec_table(rdev, wpan_dev, &table);
2013 /* TODO make it like station dump */
2017 list_for_each_entry(sl, &table->security_levels, list) {
2018 if (nl802154_send_seclevel(skb, NL802154_CMD_NEW_SEC_LEVEL,
2019 NETLINK_CB(cb->skb).portid,
2020 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2021 rdev, wpan_dev->netdev, sl) < 0) {
2024 rdev_unlock_llsec_table(rdev, wpan_dev);
2032 rdev_unlock_llsec_table(rdev, wpan_dev);
2035 nl802154_finish_wpan_dev_dump(rdev);
2040 static const struct nla_policy nl802154_seclevel_policy[NL802154_SECLEVEL_ATTR_MAX + 1] = {
2041 [NL802154_SECLEVEL_ATTR_LEVELS] = { .type = NLA_U8 },
2042 [NL802154_SECLEVEL_ATTR_FRAME] = { .type = NLA_U32 },
2043 [NL802154_SECLEVEL_ATTR_CMD_FRAME] = { .type = NLA_U32 },
2044 [NL802154_SECLEVEL_ATTR_DEV_OVERRIDE] = { .type = NLA_U8 },
2048 llsec_parse_seclevel(struct nlattr *nla, struct ieee802154_llsec_seclevel *sl)
2050 struct nlattr *attrs[NL802154_SECLEVEL_ATTR_MAX + 1];
2052 if (!nla || nla_parse_nested_deprecated(attrs, NL802154_SECLEVEL_ATTR_MAX, nla, nl802154_seclevel_policy, NULL))
2055 memset(sl, 0, sizeof(*sl));
2057 if (!attrs[NL802154_SECLEVEL_ATTR_LEVELS] ||
2058 !attrs[NL802154_SECLEVEL_ATTR_FRAME] ||
2059 !attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE])
2062 sl->sec_levels = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_LEVELS]);
2063 sl->frame_type = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_FRAME]);
2064 sl->device_override = nla_get_u8(attrs[NL802154_SECLEVEL_ATTR_DEV_OVERRIDE]);
2065 if (sl->frame_type > NL802154_FRAME_MAX ||
2066 (sl->device_override != 0 && sl->device_override != 1))
2069 if (sl->frame_type == NL802154_FRAME_CMD) {
2070 if (!attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME])
2073 sl->cmd_frame_id = nla_get_u32(attrs[NL802154_SECLEVEL_ATTR_CMD_FRAME]);
2074 if (sl->cmd_frame_id > NL802154_CMD_FRAME_MAX)
2081 static int nl802154_add_llsec_seclevel(struct sk_buff *skb,
2082 struct genl_info *info)
2084 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2085 struct net_device *dev = info->user_ptr[1];
2086 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2087 struct ieee802154_llsec_seclevel sl;
2089 if (llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2093 return rdev_add_seclevel(rdev, wpan_dev, &sl);
2096 static int nl802154_del_llsec_seclevel(struct sk_buff *skb,
2097 struct genl_info *info)
2099 struct cfg802154_registered_device *rdev = info->user_ptr[0];
2100 struct net_device *dev = info->user_ptr[1];
2101 struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
2102 struct ieee802154_llsec_seclevel sl;
2104 if (!info->attrs[NL802154_ATTR_SEC_LEVEL] ||
2105 llsec_parse_seclevel(info->attrs[NL802154_ATTR_SEC_LEVEL],
2109 return rdev_del_seclevel(rdev, wpan_dev, &sl);
2111 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2113 #define NL802154_FLAG_NEED_WPAN_PHY 0x01
2114 #define NL802154_FLAG_NEED_NETDEV 0x02
2115 #define NL802154_FLAG_NEED_RTNL 0x04
2116 #define NL802154_FLAG_CHECK_NETDEV_UP 0x08
2117 #define NL802154_FLAG_NEED_NETDEV_UP (NL802154_FLAG_NEED_NETDEV |\
2118 NL802154_FLAG_CHECK_NETDEV_UP)
2119 #define NL802154_FLAG_NEED_WPAN_DEV 0x10
2120 #define NL802154_FLAG_NEED_WPAN_DEV_UP (NL802154_FLAG_NEED_WPAN_DEV |\
2121 NL802154_FLAG_CHECK_NETDEV_UP)
2123 static int nl802154_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
2124 struct genl_info *info)
2126 struct cfg802154_registered_device *rdev;
2127 struct wpan_dev *wpan_dev;
2128 struct net_device *dev;
2129 bool rtnl = ops->internal_flags & NL802154_FLAG_NEED_RTNL;
2134 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_PHY) {
2135 rdev = cfg802154_get_dev_from_info(genl_info_net(info), info);
2139 return PTR_ERR(rdev);
2141 info->user_ptr[0] = rdev;
2142 } else if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV ||
2143 ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2145 wpan_dev = __cfg802154_wpan_dev_from_attrs(genl_info_net(info),
2147 if (IS_ERR(wpan_dev)) {
2150 return PTR_ERR(wpan_dev);
2153 dev = wpan_dev->netdev;
2154 rdev = wpan_phy_to_rdev(wpan_dev->wpan_phy);
2156 if (ops->internal_flags & NL802154_FLAG_NEED_NETDEV) {
2163 info->user_ptr[1] = dev;
2165 info->user_ptr[1] = wpan_dev;
2169 if (ops->internal_flags & NL802154_FLAG_CHECK_NETDEV_UP &&
2170 !netif_running(dev)) {
2179 info->user_ptr[0] = rdev;
2185 static void nl802154_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
2186 struct genl_info *info)
2188 if (info->user_ptr[1]) {
2189 if (ops->internal_flags & NL802154_FLAG_NEED_WPAN_DEV) {
2190 struct wpan_dev *wpan_dev = info->user_ptr[1];
2192 if (wpan_dev->netdev)
2193 dev_put(wpan_dev->netdev);
2195 dev_put(info->user_ptr[1]);
2199 if (ops->internal_flags & NL802154_FLAG_NEED_RTNL)
2203 static const struct genl_ops nl802154_ops[] = {
2205 .cmd = NL802154_CMD_GET_WPAN_PHY,
2206 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2207 .doit = nl802154_get_wpan_phy,
2208 .dumpit = nl802154_dump_wpan_phy,
2209 .done = nl802154_dump_wpan_phy_done,
2210 /* can be retrieved by unprivileged users */
2211 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2212 NL802154_FLAG_NEED_RTNL,
2215 .cmd = NL802154_CMD_GET_INTERFACE,
2216 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2217 .doit = nl802154_get_interface,
2218 .dumpit = nl802154_dump_interface,
2219 /* can be retrieved by unprivileged users */
2220 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2221 NL802154_FLAG_NEED_RTNL,
2224 .cmd = NL802154_CMD_NEW_INTERFACE,
2225 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2226 .doit = nl802154_new_interface,
2227 .flags = GENL_ADMIN_PERM,
2228 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2229 NL802154_FLAG_NEED_RTNL,
2232 .cmd = NL802154_CMD_DEL_INTERFACE,
2233 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2234 .doit = nl802154_del_interface,
2235 .flags = GENL_ADMIN_PERM,
2236 .internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
2237 NL802154_FLAG_NEED_RTNL,
2240 .cmd = NL802154_CMD_SET_CHANNEL,
2241 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2242 .doit = nl802154_set_channel,
2243 .flags = GENL_ADMIN_PERM,
2244 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2245 NL802154_FLAG_NEED_RTNL,
2248 .cmd = NL802154_CMD_SET_CCA_MODE,
2249 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2250 .doit = nl802154_set_cca_mode,
2251 .flags = GENL_ADMIN_PERM,
2252 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2253 NL802154_FLAG_NEED_RTNL,
2256 .cmd = NL802154_CMD_SET_CCA_ED_LEVEL,
2257 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2258 .doit = nl802154_set_cca_ed_level,
2259 .flags = GENL_ADMIN_PERM,
2260 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2261 NL802154_FLAG_NEED_RTNL,
2264 .cmd = NL802154_CMD_SET_TX_POWER,
2265 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2266 .doit = nl802154_set_tx_power,
2267 .flags = GENL_ADMIN_PERM,
2268 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2269 NL802154_FLAG_NEED_RTNL,
2272 .cmd = NL802154_CMD_SET_WPAN_PHY_NETNS,
2273 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2274 .doit = nl802154_wpan_phy_netns,
2275 .flags = GENL_ADMIN_PERM,
2276 .internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
2277 NL802154_FLAG_NEED_RTNL,
2280 .cmd = NL802154_CMD_SET_PAN_ID,
2281 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2282 .doit = nl802154_set_pan_id,
2283 .flags = GENL_ADMIN_PERM,
2284 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2285 NL802154_FLAG_NEED_RTNL,
2288 .cmd = NL802154_CMD_SET_SHORT_ADDR,
2289 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2290 .doit = nl802154_set_short_addr,
2291 .flags = GENL_ADMIN_PERM,
2292 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2293 NL802154_FLAG_NEED_RTNL,
2296 .cmd = NL802154_CMD_SET_BACKOFF_EXPONENT,
2297 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2298 .doit = nl802154_set_backoff_exponent,
2299 .flags = GENL_ADMIN_PERM,
2300 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2301 NL802154_FLAG_NEED_RTNL,
2304 .cmd = NL802154_CMD_SET_MAX_CSMA_BACKOFFS,
2305 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2306 .doit = nl802154_set_max_csma_backoffs,
2307 .flags = GENL_ADMIN_PERM,
2308 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2309 NL802154_FLAG_NEED_RTNL,
2312 .cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
2313 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2314 .doit = nl802154_set_max_frame_retries,
2315 .flags = GENL_ADMIN_PERM,
2316 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2317 NL802154_FLAG_NEED_RTNL,
2320 .cmd = NL802154_CMD_SET_LBT_MODE,
2321 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2322 .doit = nl802154_set_lbt_mode,
2323 .flags = GENL_ADMIN_PERM,
2324 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2325 NL802154_FLAG_NEED_RTNL,
2328 .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
2329 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2330 .doit = nl802154_set_ackreq_default,
2331 .flags = GENL_ADMIN_PERM,
2332 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2333 NL802154_FLAG_NEED_RTNL,
2335 #ifdef CONFIG_IEEE802154_NL802154_EXPERIMENTAL
2337 .cmd = NL802154_CMD_SET_SEC_PARAMS,
2338 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2339 .doit = nl802154_set_llsec_params,
2340 .flags = GENL_ADMIN_PERM,
2341 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2342 NL802154_FLAG_NEED_RTNL,
2345 .cmd = NL802154_CMD_GET_SEC_KEY,
2346 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2347 /* TODO .doit by matching key id? */
2348 .dumpit = nl802154_dump_llsec_key,
2349 .flags = GENL_ADMIN_PERM,
2350 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2351 NL802154_FLAG_NEED_RTNL,
2354 .cmd = NL802154_CMD_NEW_SEC_KEY,
2355 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2356 .doit = nl802154_add_llsec_key,
2357 .flags = GENL_ADMIN_PERM,
2358 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2359 NL802154_FLAG_NEED_RTNL,
2362 .cmd = NL802154_CMD_DEL_SEC_KEY,
2363 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2364 .doit = nl802154_del_llsec_key,
2365 .flags = GENL_ADMIN_PERM,
2366 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2367 NL802154_FLAG_NEED_RTNL,
2369 /* TODO unique identifier must short+pan OR extended_addr */
2371 .cmd = NL802154_CMD_GET_SEC_DEV,
2372 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2373 /* TODO .doit by matching extended_addr? */
2374 .dumpit = nl802154_dump_llsec_dev,
2375 .flags = GENL_ADMIN_PERM,
2376 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2377 NL802154_FLAG_NEED_RTNL,
2380 .cmd = NL802154_CMD_NEW_SEC_DEV,
2381 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2382 .doit = nl802154_add_llsec_dev,
2383 .flags = GENL_ADMIN_PERM,
2384 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2385 NL802154_FLAG_NEED_RTNL,
2388 .cmd = NL802154_CMD_DEL_SEC_DEV,
2389 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2390 .doit = nl802154_del_llsec_dev,
2391 .flags = GENL_ADMIN_PERM,
2392 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2393 NL802154_FLAG_NEED_RTNL,
2395 /* TODO remove complete devkey, put it as nested? */
2397 .cmd = NL802154_CMD_GET_SEC_DEVKEY,
2398 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2399 /* TODO doit by matching ??? */
2400 .dumpit = nl802154_dump_llsec_devkey,
2401 .flags = GENL_ADMIN_PERM,
2402 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2403 NL802154_FLAG_NEED_RTNL,
2406 .cmd = NL802154_CMD_NEW_SEC_DEVKEY,
2407 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2408 .doit = nl802154_add_llsec_devkey,
2409 .flags = GENL_ADMIN_PERM,
2410 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2411 NL802154_FLAG_NEED_RTNL,
2414 .cmd = NL802154_CMD_DEL_SEC_DEVKEY,
2415 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2416 .doit = nl802154_del_llsec_devkey,
2417 .flags = GENL_ADMIN_PERM,
2418 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2419 NL802154_FLAG_NEED_RTNL,
2422 .cmd = NL802154_CMD_GET_SEC_LEVEL,
2423 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2424 /* TODO .doit by matching frame_type? */
2425 .dumpit = nl802154_dump_llsec_seclevel,
2426 .flags = GENL_ADMIN_PERM,
2427 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2428 NL802154_FLAG_NEED_RTNL,
2431 .cmd = NL802154_CMD_NEW_SEC_LEVEL,
2432 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2433 .doit = nl802154_add_llsec_seclevel,
2434 .flags = GENL_ADMIN_PERM,
2435 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2436 NL802154_FLAG_NEED_RTNL,
2439 .cmd = NL802154_CMD_DEL_SEC_LEVEL,
2440 .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
2441 /* TODO match frame_type only? */
2442 .doit = nl802154_del_llsec_seclevel,
2443 .flags = GENL_ADMIN_PERM,
2444 .internal_flags = NL802154_FLAG_NEED_NETDEV |
2445 NL802154_FLAG_NEED_RTNL,
2447 #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */
2450 static struct genl_family nl802154_fam __ro_after_init = {
2451 .name = NL802154_GENL_NAME, /* have users key off the name instead */
2452 .hdrsize = 0, /* no private header */
2453 .version = 1, /* no particular meaning now */
2454 .maxattr = NL802154_ATTR_MAX,
2455 .policy = nl802154_policy,
2457 .pre_doit = nl802154_pre_doit,
2458 .post_doit = nl802154_post_doit,
2459 .module = THIS_MODULE,
2460 .ops = nl802154_ops,
2461 .n_ops = ARRAY_SIZE(nl802154_ops),
2462 .mcgrps = nl802154_mcgrps,
2463 .n_mcgrps = ARRAY_SIZE(nl802154_mcgrps),
2466 /* initialisation/exit functions */
2467 int __init nl802154_init(void)
2469 return genl_register_family(&nl802154_fam);
2472 void nl802154_exit(void)
2474 genl_unregister_family(&nl802154_fam);