2 * Netlink interface for IEEE 802.15.4 stack
4 * Copyright 2007, 2008 Siemens AG
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
16 * Sergey Lapin <slapin@ossfans.org>
17 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
18 * Maxim Osipov <maxim.osipov@siemens.com>
21 #include <linux/gfp.h>
22 #include <linux/kernel.h>
23 #include <linux/if_arp.h>
24 #include <linux/netdevice.h>
25 #include <linux/ieee802154.h>
26 #include <net/netlink.h>
27 #include <net/genetlink.h>
29 #include <linux/nl802154.h>
30 #include <linux/export.h>
31 #include <net/af_ieee802154.h>
32 #include <net/ieee802154_netdev.h>
33 #include <net/cfg802154.h>
35 #include "ieee802154.h"
37 static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr)
39 return nla_put_u64(msg, type, swab64((__force u64)hwaddr));
42 static __le64 nla_get_hwaddr(const struct nlattr *nla)
44 return ieee802154_devaddr_from_raw(nla_data(nla));
47 static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr)
49 return nla_put_u16(msg, type, le16_to_cpu(addr));
52 static __le16 nla_get_shortaddr(const struct nlattr *nla)
54 return cpu_to_le16(nla_get_u16(nla));
57 static int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
61 pr_debug("%s\n", __func__);
63 msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
67 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
68 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
69 nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
71 nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
73 return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
79 EXPORT_SYMBOL(ieee802154_nl_start_confirm);
81 static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid,
82 u32 seq, int flags, struct net_device *dev)
86 struct ieee802154_mlme_ops *ops;
87 __le16 short_addr, pan_id;
89 pr_debug("%s\n", __func__);
91 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags,
92 IEEE802154_LIST_IFACE);
96 ops = ieee802154_mlme_ops(dev);
97 phy = dev->ieee802154_ptr->wpan_phy;
99 get_device(&phy->dev);
101 short_addr = ops->get_short_addr(dev);
102 pan_id = ops->get_pan_id(dev);
104 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
105 nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
106 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
107 nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
109 nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
110 nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
111 goto nla_put_failure;
113 if (ops->get_mac_params) {
114 struct ieee802154_mac_params params;
117 ops->get_mac_params(dev, ¶ms);
120 if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
121 params.transmit_power) ||
122 nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
123 nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
125 nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
126 params.cca_ed_level) ||
127 nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
128 params.csma_retries) ||
129 nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
131 nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
133 nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
134 params.frame_retries))
135 goto nla_put_failure;
139 genlmsg_end(msg, hdr);
144 genlmsg_cancel(msg, hdr);
149 /* Requests from userspace */
150 static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
152 struct net_device *dev;
154 if (info->attrs[IEEE802154_ATTR_DEV_NAME]) {
155 char name[IFNAMSIZ + 1];
157 nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME],
159 dev = dev_get_by_name(&init_net, name);
160 } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) {
161 dev = dev_get_by_index(&init_net,
162 nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
170 /* Check on mtu is currently a hacked solution because lowpan
171 * and wpan have the same ARPHRD type.
173 if (dev->type != ARPHRD_IEEE802154 || dev->mtu != IEEE802154_MTU) {
181 int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
183 struct net_device *dev;
184 struct ieee802154_addr addr;
186 int ret = -EOPNOTSUPP;
188 if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
189 !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
190 (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] &&
191 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) ||
192 !info->attrs[IEEE802154_ATTR_CAPABILITY])
195 dev = ieee802154_nl_get_dev(info);
198 if (!ieee802154_mlme_ops(dev)->assoc_req)
201 if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) {
202 addr.mode = IEEE802154_ADDR_LONG;
203 addr.extended_addr = nla_get_hwaddr(
204 info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]);
206 addr.mode = IEEE802154_ADDR_SHORT;
207 addr.short_addr = nla_get_shortaddr(
208 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
210 addr.pan_id = nla_get_shortaddr(
211 info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
213 if (info->attrs[IEEE802154_ATTR_PAGE])
214 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
218 ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
219 nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
221 nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
228 int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
230 struct net_device *dev;
231 struct ieee802154_addr addr;
232 int ret = -EOPNOTSUPP;
234 if (!info->attrs[IEEE802154_ATTR_STATUS] ||
235 !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] ||
236 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR])
239 dev = ieee802154_nl_get_dev(info);
242 if (!ieee802154_mlme_ops(dev)->assoc_resp)
245 addr.mode = IEEE802154_ADDR_LONG;
246 addr.extended_addr = nla_get_hwaddr(
247 info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
248 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
250 ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr,
251 nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]),
252 nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS]));
259 int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
261 struct net_device *dev;
262 struct ieee802154_addr addr;
263 int ret = -EOPNOTSUPP;
265 if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] &&
266 !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) ||
267 !info->attrs[IEEE802154_ATTR_REASON])
270 dev = ieee802154_nl_get_dev(info);
273 if (!ieee802154_mlme_ops(dev)->disassoc_req)
276 if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) {
277 addr.mode = IEEE802154_ADDR_LONG;
278 addr.extended_addr = nla_get_hwaddr(
279 info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]);
281 addr.mode = IEEE802154_ADDR_SHORT;
282 addr.short_addr = nla_get_shortaddr(
283 info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]);
285 addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
287 ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr,
288 nla_get_u8(info->attrs[IEEE802154_ATTR_REASON]));
295 /* PANid, channel, beacon_order = 15, superframe_order = 15,
296 * PAN_coordinator, battery_life_extension = 0,
297 * coord_realignment = 0, security_enable = 0
299 int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
301 struct net_device *dev;
302 struct ieee802154_addr addr;
304 u8 channel, bcn_ord, sf_ord;
306 int pan_coord, blx, coord_realign;
309 if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] ||
310 !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] ||
311 !info->attrs[IEEE802154_ATTR_CHANNEL] ||
312 !info->attrs[IEEE802154_ATTR_BCN_ORD] ||
313 !info->attrs[IEEE802154_ATTR_SF_ORD] ||
314 !info->attrs[IEEE802154_ATTR_PAN_COORD] ||
315 !info->attrs[IEEE802154_ATTR_BAT_EXT] ||
316 !info->attrs[IEEE802154_ATTR_COORD_REALIGN]
320 dev = ieee802154_nl_get_dev(info);
324 if (netif_running(dev))
327 if (!ieee802154_mlme_ops(dev)->start_req) {
332 addr.mode = IEEE802154_ADDR_SHORT;
333 addr.short_addr = nla_get_shortaddr(
334 info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]);
335 addr.pan_id = nla_get_shortaddr(
336 info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
338 channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]);
339 bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]);
340 sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]);
341 pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]);
342 blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
343 coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
345 if (info->attrs[IEEE802154_ATTR_PAGE])
346 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
350 if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) {
351 ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
357 ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
358 bcn_ord, sf_ord, pan_coord, blx, coord_realign);
361 /* FIXME: add validation for unused parameters to be sane
364 ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS);
371 int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
373 struct net_device *dev;
374 int ret = -EOPNOTSUPP;
380 if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
381 !info->attrs[IEEE802154_ATTR_CHANNELS] ||
382 !info->attrs[IEEE802154_ATTR_DURATION])
385 dev = ieee802154_nl_get_dev(info);
388 if (!ieee802154_mlme_ops(dev)->scan_req)
391 type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]);
392 channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
393 duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
395 if (info->attrs[IEEE802154_ATTR_PAGE])
396 page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
400 ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
408 int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
410 /* Request for interface name, index, type, IEEE address,
411 * PAN Id, short address
414 struct net_device *dev = NULL;
417 pr_debug("%s\n", __func__);
419 dev = ieee802154_nl_get_dev(info);
423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
427 rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq,
434 return genlmsg_reply(msg, info);
442 int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb)
444 struct net *net = sock_net(skb->sk);
445 struct net_device *dev;
447 int s_idx = cb->args[0];
449 pr_debug("%s\n", __func__);
452 for_each_netdev(net, dev) {
453 /* Check on mtu is currently a hacked solution because lowpan
454 * and wpan have the same ARPHRD type.
456 if (idx < s_idx || dev->type != ARPHRD_IEEE802154 ||
457 dev->mtu != IEEE802154_MTU)
460 if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid,
462 NLM_F_MULTI, dev) < 0)
472 int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
474 struct net_device *dev = NULL;
475 struct ieee802154_mlme_ops *ops;
476 struct ieee802154_mac_params params;
477 struct wpan_phy *phy;
480 pr_debug("%s\n", __func__);
482 dev = ieee802154_nl_get_dev(info);
486 ops = ieee802154_mlme_ops(dev);
488 if (!ops->get_mac_params || !ops->set_mac_params) {
493 if (netif_running(dev)) {
498 if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
499 !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
500 !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
501 !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
502 !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
503 !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
504 !info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
507 phy = dev->ieee802154_ptr->wpan_phy;
508 get_device(&phy->dev);
511 ops->get_mac_params(dev, ¶ms);
513 if (info->attrs[IEEE802154_ATTR_TXPOWER])
514 params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]);
516 if (info->attrs[IEEE802154_ATTR_LBT_ENABLED])
517 params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
519 if (info->attrs[IEEE802154_ATTR_CCA_MODE])
520 params.cca.mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
522 if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
523 params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
525 if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
526 params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
528 if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
529 params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
531 if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
532 params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
534 if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
535 params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
537 rc = ops->set_mac_params(dev, ¶ms);
551 ieee802154_llsec_parse_key_id(struct genl_info *info,
552 struct ieee802154_llsec_key_id *desc)
554 memset(desc, 0, sizeof(*desc));
556 if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE])
559 desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]);
561 if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
562 if (!info->attrs[IEEE802154_ATTR_PAN_ID] &&
563 !(info->attrs[IEEE802154_ATTR_SHORT_ADDR] ||
564 info->attrs[IEEE802154_ATTR_HW_ADDR]))
567 desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
569 if (info->attrs[IEEE802154_ATTR_SHORT_ADDR]) {
570 desc->device_addr.mode = IEEE802154_ADDR_SHORT;
571 desc->device_addr.short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
573 desc->device_addr.mode = IEEE802154_ADDR_LONG;
574 desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
578 if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
579 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID])
582 if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
583 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT])
586 if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
587 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED])
590 if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT)
591 desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]);
593 switch (desc->mode) {
594 case IEEE802154_SCF_KEY_SHORT_INDEX:
596 u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]);
598 desc->short_source = cpu_to_le32(source);
601 case IEEE802154_SCF_KEY_HW_INDEX:
602 desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]);
610 ieee802154_llsec_fill_key_id(struct sk_buff *msg,
611 const struct ieee802154_llsec_key_id *desc)
613 if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode))
616 if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) {
617 if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID,
618 desc->device_addr.pan_id))
621 if (desc->device_addr.mode == IEEE802154_ADDR_SHORT &&
622 nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
623 desc->device_addr.short_addr))
626 if (desc->device_addr.mode == IEEE802154_ADDR_LONG &&
627 nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR,
628 desc->device_addr.extended_addr))
632 if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT &&
633 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id))
636 if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX &&
637 nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT,
638 le32_to_cpu(desc->short_source)))
641 if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX &&
642 nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED,
643 desc->extended_source))
649 int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info)
652 struct net_device *dev = NULL;
654 struct ieee802154_mlme_ops *ops;
656 struct ieee802154_llsec_params params;
658 pr_debug("%s\n", __func__);
660 dev = ieee802154_nl_get_dev(info);
664 ops = ieee802154_mlme_ops(dev);
670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
674 hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0,
675 IEEE802154_LLSEC_GETPARAMS);
679 rc = ops->llsec->get_params(dev, ¶ms);
683 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
684 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
685 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) ||
686 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) ||
687 nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
688 be32_to_cpu(params.frame_counter)) ||
689 ieee802154_llsec_fill_key_id(msg, ¶ms.out_key))
694 return ieee802154_nl_reply(msg, info);
702 int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info)
704 struct net_device *dev = NULL;
706 struct ieee802154_mlme_ops *ops;
707 struct ieee802154_llsec_params params;
710 pr_debug("%s\n", __func__);
712 dev = ieee802154_nl_get_dev(info);
716 if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] &&
717 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] &&
718 !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL])
721 ops = ieee802154_mlme_ops(dev);
727 if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] &&
728 nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7)
731 if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) {
732 params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]);
733 changed |= IEEE802154_LLSEC_PARAM_ENABLED;
736 if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) {
737 if (ieee802154_llsec_parse_key_id(info, ¶ms.out_key))
740 changed |= IEEE802154_LLSEC_PARAM_OUT_KEY;
743 if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) {
744 params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]);
745 changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL;
748 if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) {
749 u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
751 params.frame_counter = cpu_to_be32(fc);
752 changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER;
755 rc = ops->llsec->set_params(dev, ¶ms, changed);
765 struct llsec_dump_data {
770 struct net_device *dev;
771 struct ieee802154_mlme_ops *ops;
772 struct ieee802154_llsec_table *table;
776 ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb,
777 int (*step)(struct llsec_dump_data *))
779 struct net *net = sock_net(skb->sk);
780 struct net_device *dev;
781 struct llsec_dump_data data;
783 int first_dev = cb->args[0];
786 for_each_netdev(net, dev) {
787 /* Check on mtu is currently a hacked solution because lowpan
788 * and wpan have the same ARPHRD type.
790 if (idx < first_dev || dev->type != ARPHRD_IEEE802154 ||
791 dev->mtu != IEEE802154_MTU)
794 data.ops = ieee802154_mlme_ops(dev);
795 if (!data.ops->llsec)
799 data.s_idx = cb->args[1];
800 data.s_idx2 = cb->args[2];
802 data.portid = NETLINK_CB(cb->skb).portid;
803 data.nlmsg_seq = cb->nlh->nlmsg_seq;
805 data.ops->llsec->lock_table(dev);
806 data.ops->llsec->get_table(data.dev, &data.table);
808 data.ops->llsec->unlock_table(dev);
822 ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info,
823 int (*fn)(struct net_device*, struct genl_info*))
825 struct net_device *dev = NULL;
828 dev = ieee802154_nl_get_dev(info);
832 if (!ieee802154_mlme_ops(dev)->llsec)
842 ieee802154_llsec_parse_key(struct genl_info *info,
843 struct ieee802154_llsec_key *key)
846 u32 commands[256 / 32];
848 memset(key, 0, sizeof(*key));
850 if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] ||
851 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES])
854 frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]);
855 if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) &&
856 !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS])
859 if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) {
861 info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS],
864 if (commands[0] || commands[1] || commands[2] || commands[3] ||
865 commands[4] || commands[5] || commands[6] ||
866 commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1))
869 key->cmd_frame_ids = commands[7];
872 key->frame_types = frames;
874 nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES],
875 IEEE802154_LLSEC_KEY_SIZE);
880 static int llsec_add_key(struct net_device *dev, struct genl_info *info)
882 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
883 struct ieee802154_llsec_key key;
884 struct ieee802154_llsec_key_id id;
886 if (ieee802154_llsec_parse_key(info, &key) ||
887 ieee802154_llsec_parse_key_id(info, &id))
890 return ops->llsec->add_key(dev, &id, &key);
893 int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info)
895 if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
896 (NLM_F_CREATE | NLM_F_EXCL))
899 return ieee802154_nl_llsec_change(skb, info, llsec_add_key);
902 static int llsec_remove_key(struct net_device *dev, struct genl_info *info)
904 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
905 struct ieee802154_llsec_key_id id;
907 if (ieee802154_llsec_parse_key_id(info, &id))
910 return ops->llsec->del_key(dev, &id);
913 int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info)
915 return ieee802154_nl_llsec_change(skb, info, llsec_remove_key);
919 ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq,
920 const struct ieee802154_llsec_key_entry *key,
921 const struct net_device *dev)
924 u32 commands[256 / 32];
926 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
927 IEEE802154_LLSEC_LIST_KEY);
931 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
932 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
933 ieee802154_llsec_fill_key_id(msg, &key->id) ||
934 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES,
935 key->key->frame_types))
936 goto nla_put_failure;
938 if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) {
939 memset(commands, 0, sizeof(commands));
940 commands[7] = key->key->cmd_frame_ids;
941 if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS,
942 sizeof(commands), commands))
943 goto nla_put_failure;
946 if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES,
947 IEEE802154_LLSEC_KEY_SIZE, key->key->key))
948 goto nla_put_failure;
950 genlmsg_end(msg, hdr);
954 genlmsg_cancel(msg, hdr);
959 static int llsec_iter_keys(struct llsec_dump_data *data)
961 struct ieee802154_llsec_key_entry *pos;
964 list_for_each_entry(pos, &data->table->keys, list) {
965 if (idx++ < data->s_idx)
968 if (ieee802154_nl_fill_key(data->skb, data->portid,
969 data->nlmsg_seq, pos, data->dev)) {
980 int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb)
982 return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys);
986 llsec_parse_dev(struct genl_info *info,
987 struct ieee802154_llsec_device *dev)
989 memset(dev, 0, sizeof(*dev));
991 if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
992 !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
993 !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] ||
994 !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] ||
995 (!!info->attrs[IEEE802154_ATTR_PAN_ID] !=
996 !!info->attrs[IEEE802154_ATTR_SHORT_ADDR]))
999 if (info->attrs[IEEE802154_ATTR_PAN_ID]) {
1000 dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]);
1001 dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]);
1003 dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF);
1006 dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1007 dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
1008 dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
1009 dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]);
1011 if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX)
1017 static int llsec_add_dev(struct net_device *dev, struct genl_info *info)
1019 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1020 struct ieee802154_llsec_device desc;
1022 if (llsec_parse_dev(info, &desc))
1025 return ops->llsec->add_dev(dev, &desc);
1028 int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info)
1030 if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1031 (NLM_F_CREATE | NLM_F_EXCL))
1034 return ieee802154_nl_llsec_change(skb, info, llsec_add_dev);
1037 static int llsec_del_dev(struct net_device *dev, struct genl_info *info)
1039 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1042 if (!info->attrs[IEEE802154_ATTR_HW_ADDR])
1045 devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1047 return ops->llsec->del_dev(dev, devaddr);
1050 int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info)
1052 return ieee802154_nl_llsec_change(skb, info, llsec_del_dev);
1056 ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq,
1057 const struct ieee802154_llsec_device *desc,
1058 const struct net_device *dev)
1062 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1063 IEEE802154_LLSEC_LIST_DEV);
1067 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1068 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1069 nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) ||
1070 nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR,
1071 desc->short_addr) ||
1072 nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr) ||
1073 nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
1074 desc->frame_counter) ||
1075 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
1076 desc->seclevel_exempt) ||
1077 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode))
1078 goto nla_put_failure;
1080 genlmsg_end(msg, hdr);
1084 genlmsg_cancel(msg, hdr);
1089 static int llsec_iter_devs(struct llsec_dump_data *data)
1091 struct ieee802154_llsec_device *pos;
1092 int rc = 0, idx = 0;
1094 list_for_each_entry(pos, &data->table->devices, list) {
1095 if (idx++ < data->s_idx)
1098 if (ieee802154_nl_fill_dev(data->skb, data->portid,
1099 data->nlmsg_seq, pos, data->dev)) {
1110 int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb)
1112 return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs);
1115 static int llsec_add_devkey(struct net_device *dev, struct genl_info *info)
1117 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1118 struct ieee802154_llsec_device_key key;
1121 if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] ||
1122 !info->attrs[IEEE802154_ATTR_HW_ADDR] ||
1123 ieee802154_llsec_parse_key_id(info, &key.key_id))
1126 devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1127 key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]);
1129 return ops->llsec->add_devkey(dev, devaddr, &key);
1132 int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info)
1134 if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1135 (NLM_F_CREATE | NLM_F_EXCL))
1138 return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey);
1141 static int llsec_del_devkey(struct net_device *dev, struct genl_info *info)
1143 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1144 struct ieee802154_llsec_device_key key;
1147 if (!info->attrs[IEEE802154_ATTR_HW_ADDR] ||
1148 ieee802154_llsec_parse_key_id(info, &key.key_id))
1151 devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]);
1153 return ops->llsec->del_devkey(dev, devaddr, &key);
1156 int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info)
1158 return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey);
1162 ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq,
1164 const struct ieee802154_llsec_device_key *devkey,
1165 const struct net_device *dev)
1169 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1170 IEEE802154_LLSEC_LIST_DEVKEY);
1174 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1175 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1176 nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr) ||
1177 nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER,
1178 devkey->frame_counter) ||
1179 ieee802154_llsec_fill_key_id(msg, &devkey->key_id))
1180 goto nla_put_failure;
1182 genlmsg_end(msg, hdr);
1186 genlmsg_cancel(msg, hdr);
1191 static int llsec_iter_devkeys(struct llsec_dump_data *data)
1193 struct ieee802154_llsec_device *dpos;
1194 struct ieee802154_llsec_device_key *kpos;
1195 int rc = 0, idx = 0, idx2;
1197 list_for_each_entry(dpos, &data->table->devices, list) {
1198 if (idx++ < data->s_idx)
1203 list_for_each_entry(kpos, &dpos->keys, list) {
1204 if (idx2++ < data->s_idx2)
1207 if (ieee802154_nl_fill_devkey(data->skb, data->portid,
1211 return rc = -EMSGSIZE;
1223 int ieee802154_llsec_dump_devkeys(struct sk_buff *skb,
1224 struct netlink_callback *cb)
1226 return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys);
1230 llsec_parse_seclevel(struct genl_info *info,
1231 struct ieee802154_llsec_seclevel *sl)
1233 memset(sl, 0, sizeof(*sl));
1235 if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] ||
1236 !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] ||
1237 !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE])
1240 sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]);
1241 if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) {
1242 if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID])
1245 sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]);
1248 sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]);
1249 sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]);
1254 static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info)
1256 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1257 struct ieee802154_llsec_seclevel sl;
1259 if (llsec_parse_seclevel(info, &sl))
1262 return ops->llsec->add_seclevel(dev, &sl);
1265 int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info)
1267 if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) !=
1268 (NLM_F_CREATE | NLM_F_EXCL))
1271 return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel);
1274 static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info)
1276 struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev);
1277 struct ieee802154_llsec_seclevel sl;
1279 if (llsec_parse_seclevel(info, &sl))
1282 return ops->llsec->del_seclevel(dev, &sl);
1285 int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info)
1287 return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel);
1291 ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq,
1292 const struct ieee802154_llsec_seclevel *sl,
1293 const struct net_device *dev)
1297 hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI,
1298 IEEE802154_LLSEC_LIST_SECLEVEL);
1302 if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
1303 nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) ||
1304 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) ||
1305 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) ||
1306 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE,
1307 sl->device_override))
1308 goto nla_put_failure;
1310 if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD &&
1311 nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID,
1313 goto nla_put_failure;
1315 genlmsg_end(msg, hdr);
1319 genlmsg_cancel(msg, hdr);
1324 static int llsec_iter_seclevels(struct llsec_dump_data *data)
1326 struct ieee802154_llsec_seclevel *pos;
1327 int rc = 0, idx = 0;
1329 list_for_each_entry(pos, &data->table->security_levels, list) {
1330 if (idx++ < data->s_idx)
1333 if (ieee802154_nl_fill_seclevel(data->skb, data->portid,
1334 data->nlmsg_seq, pos,
1346 int ieee802154_llsec_dump_seclevels(struct sk_buff *skb,
1347 struct netlink_callback *cb)
1349 return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels);