Commit | Line | Data |
---|---|---|
78fe738d | 1 | /* |
69bb631e | 2 | * Netlink interface for IEEE 802.15.4 stack |
78fe738d DES |
3 | * |
4 | * Copyright 2007, 2008 Siemens AG | |
5 | * | |
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. | |
9 | * | |
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. | |
14 | * | |
78fe738d DES |
15 | * Written by: |
16 | * Sergey Lapin <slapin@ossfans.org> | |
17 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | |
18 | * Maxim Osipov <maxim.osipov@siemens.com> | |
19 | */ | |
20 | ||
5a0e3ad6 | 21 | #include <linux/gfp.h> |
78fe738d DES |
22 | #include <linux/kernel.h> |
23 | #include <linux/if_arp.h> | |
24 | #include <linux/netdevice.h> | |
4ca24aca | 25 | #include <linux/ieee802154.h> |
78fe738d DES |
26 | #include <net/netlink.h> |
27 | #include <net/genetlink.h> | |
28 | #include <net/sock.h> | |
29 | #include <linux/nl802154.h> | |
bc3b2d7f | 30 | #include <linux/export.h> |
78fe738d | 31 | #include <net/af_ieee802154.h> |
78fe738d | 32 | #include <net/ieee802154_netdev.h> |
5ad60d36 | 33 | #include <net/cfg802154.h> |
78fe738d DES |
34 | |
35 | #include "ieee802154.h" | |
36 | ||
a558da09 ND |
37 | static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr, |
38 | int padattr) | |
ae531b94 | 39 | { |
a558da09 ND |
40 | return nla_put_u64_64bit(msg, type, swab64((__force u64)hwaddr), |
41 | padattr); | |
ae531b94 PB |
42 | } |
43 | ||
44 | static __le64 nla_get_hwaddr(const struct nlattr *nla) | |
45 | { | |
46 | return ieee802154_devaddr_from_raw(nla_data(nla)); | |
47 | } | |
48 | ||
49 | static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr) | |
50 | { | |
51 | return nla_put_u16(msg, type, le16_to_cpu(addr)); | |
52 | } | |
53 | ||
54 | static __le16 nla_get_shortaddr(const struct nlattr *nla) | |
55 | { | |
56 | return cpu_to_le16(nla_get_u16(nla)); | |
57 | } | |
58 | ||
9f3295b9 | 59 | static int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) |
78fe738d DES |
60 | { |
61 | struct sk_buff *msg; | |
62 | ||
63 | pr_debug("%s\n", __func__); | |
64 | ||
65 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
66 | if (!msg) | |
67 | return -ENOBUFS; | |
68 | ||
be51da0f DM |
69 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || |
70 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
71 | nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
72 | dev->dev_addr) || | |
73 | nla_put_u8(msg, IEEE802154_ATTR_STATUS, status)) | |
74 | goto nla_put_failure; | |
2a94fe48 | 75 | return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); |
78fe738d DES |
76 | |
77 | nla_put_failure: | |
78 | nlmsg_free(msg); | |
79 | return -ENOBUFS; | |
80 | } | |
78fe738d | 81 | |
15e47304 | 82 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, |
4710d806 | 83 | u32 seq, int flags, struct net_device *dev) |
78fe738d DES |
84 | { |
85 | void *hdr; | |
0a868b26 | 86 | struct wpan_phy *phy; |
e462ded6 | 87 | struct ieee802154_mlme_ops *ops; |
ae531b94 | 88 | __le16 short_addr, pan_id; |
78fe738d DES |
89 | |
90 | pr_debug("%s\n", __func__); | |
91 | ||
92 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, | |
4710d806 | 93 | IEEE802154_LIST_IFACE); |
78fe738d DES |
94 | if (!hdr) |
95 | goto out; | |
96 | ||
e462ded6 | 97 | ops = ieee802154_mlme_ops(dev); |
bd28a11f | 98 | phy = dev->ieee802154_ptr->wpan_phy; |
0a868b26 | 99 | BUG_ON(!phy); |
bd28a11f | 100 | get_device(&phy->dev); |
0a868b26 | 101 | |
c947f7e1 AA |
102 | rtnl_lock(); |
103 | short_addr = dev->ieee802154_ptr->short_addr; | |
104 | pan_id = dev->ieee802154_ptr->pan_id; | |
105 | rtnl_unlock(); | |
b70ab2e8 | 106 | |
be51da0f DM |
107 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || |
108 | nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || | |
109 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
110 | nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
111 | dev->dev_addr) || | |
ae531b94 PB |
112 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) || |
113 | nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id)) | |
be51da0f | 114 | goto nla_put_failure; |
e462ded6 PB |
115 | |
116 | if (ops->get_mac_params) { | |
117 | struct ieee802154_mac_params params; | |
118 | ||
7bea1ea7 | 119 | rtnl_lock(); |
e462ded6 | 120 | ops->get_mac_params(dev, ¶ms); |
7bea1ea7 | 121 | rtnl_unlock(); |
e462ded6 PB |
122 | |
123 | if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER, | |
e2eb173a | 124 | params.transmit_power / 100) || |
e462ded6 PB |
125 | nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) || |
126 | nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, | |
7fe9a388 | 127 | params.cca.mode) || |
e462ded6 | 128 | nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL, |
32b23550 | 129 | params.cca_ed_level / 100) || |
e462ded6 PB |
130 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES, |
131 | params.csma_retries) || | |
132 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE, | |
133 | params.min_be) || | |
134 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE, | |
135 | params.max_be) || | |
136 | nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES, | |
137 | params.frame_retries)) | |
138 | goto nla_put_failure; | |
139 | } | |
140 | ||
0a868b26 | 141 | wpan_phy_put(phy); |
053c095a JB |
142 | genlmsg_end(msg, hdr); |
143 | return 0; | |
78fe738d DES |
144 | |
145 | nla_put_failure: | |
0a868b26 | 146 | wpan_phy_put(phy); |
78fe738d DES |
147 | genlmsg_cancel(msg, hdr); |
148 | out: | |
149 | return -EMSGSIZE; | |
150 | } | |
151 | ||
152 | /* Requests from userspace */ | |
153 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
154 | { | |
155 | struct net_device *dev; | |
156 | ||
157 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
158 | char name[IFNAMSIZ + 1]; | |
4710d806 | 159 | |
78fe738d | 160 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], |
4710d806 | 161 | sizeof(name)); |
78fe738d | 162 | dev = dev_get_by_name(&init_net, name); |
4710d806 | 163 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) { |
78fe738d DES |
164 | dev = dev_get_by_index(&init_net, |
165 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
4710d806 | 166 | } else { |
78fe738d | 167 | return NULL; |
4710d806 | 168 | } |
78fe738d DES |
169 | |
170 | if (!dev) | |
171 | return NULL; | |
172 | ||
01c8d2bb | 173 | if (dev->type != ARPHRD_IEEE802154) { |
78fe738d DES |
174 | dev_put(dev); |
175 | return NULL; | |
176 | } | |
177 | ||
178 | return dev; | |
179 | } | |
180 | ||
1c582d91 | 181 | int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
182 | { |
183 | struct net_device *dev; | |
ae531b94 | 184 | struct ieee802154_addr addr; |
78fe738d | 185 | u8 page; |
56aa091d | 186 | int ret = -EOPNOTSUPP; |
78fe738d DES |
187 | |
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]) | |
193 | return -EINVAL; | |
194 | ||
195 | dev = ieee802154_nl_get_dev(info); | |
196 | if (!dev) | |
197 | return -ENODEV; | |
56aa091d WA |
198 | if (!ieee802154_mlme_ops(dev)->assoc_req) |
199 | goto out; | |
78fe738d DES |
200 | |
201 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
ae531b94 PB |
202 | addr.mode = IEEE802154_ADDR_LONG; |
203 | addr.extended_addr = nla_get_hwaddr( | |
204 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]); | |
78fe738d | 205 | } else { |
ae531b94 PB |
206 | addr.mode = IEEE802154_ADDR_SHORT; |
207 | addr.short_addr = nla_get_shortaddr( | |
78fe738d DES |
208 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
209 | } | |
ae531b94 PB |
210 | addr.pan_id = nla_get_shortaddr( |
211 | info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
78fe738d DES |
212 | |
213 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
214 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
215 | else | |
216 | page = 0; | |
217 | ||
218 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, | |
219 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
220 | page, | |
221 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); | |
222 | ||
56aa091d | 223 | out: |
78fe738d DES |
224 | dev_put(dev); |
225 | return ret; | |
226 | } | |
227 | ||
1c582d91 | 228 | int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
229 | { |
230 | struct net_device *dev; | |
ae531b94 | 231 | struct ieee802154_addr addr; |
56aa091d | 232 | int ret = -EOPNOTSUPP; |
78fe738d DES |
233 | |
234 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
235 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
236 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
237 | return -EINVAL; | |
238 | ||
239 | dev = ieee802154_nl_get_dev(info); | |
240 | if (!dev) | |
241 | return -ENODEV; | |
56aa091d WA |
242 | if (!ieee802154_mlme_ops(dev)->assoc_resp) |
243 | goto out; | |
78fe738d | 244 | |
ae531b94 PB |
245 | addr.mode = IEEE802154_ADDR_LONG; |
246 | addr.extended_addr = nla_get_hwaddr( | |
247 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); | |
c947f7e1 AA |
248 | rtnl_lock(); |
249 | addr.pan_id = dev->ieee802154_ptr->pan_id; | |
250 | rtnl_unlock(); | |
78fe738d DES |
251 | |
252 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
ae531b94 | 253 | nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), |
78fe738d DES |
254 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); |
255 | ||
56aa091d | 256 | out: |
78fe738d DES |
257 | dev_put(dev); |
258 | return ret; | |
259 | } | |
260 | ||
1c582d91 | 261 | int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
262 | { |
263 | struct net_device *dev; | |
ae531b94 | 264 | struct ieee802154_addr addr; |
56aa091d | 265 | int ret = -EOPNOTSUPP; |
78fe738d DES |
266 | |
267 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
4710d806 | 268 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || |
78fe738d DES |
269 | !info->attrs[IEEE802154_ATTR_REASON]) |
270 | return -EINVAL; | |
271 | ||
272 | dev = ieee802154_nl_get_dev(info); | |
273 | if (!dev) | |
274 | return -ENODEV; | |
56aa091d WA |
275 | if (!ieee802154_mlme_ops(dev)->disassoc_req) |
276 | goto out; | |
78fe738d DES |
277 | |
278 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
ae531b94 PB |
279 | addr.mode = IEEE802154_ADDR_LONG; |
280 | addr.extended_addr = nla_get_hwaddr( | |
281 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); | |
78fe738d | 282 | } else { |
ae531b94 PB |
283 | addr.mode = IEEE802154_ADDR_SHORT; |
284 | addr.short_addr = nla_get_shortaddr( | |
78fe738d DES |
285 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); |
286 | } | |
c947f7e1 AA |
287 | rtnl_lock(); |
288 | addr.pan_id = dev->ieee802154_ptr->pan_id; | |
289 | rtnl_unlock(); | |
78fe738d DES |
290 | |
291 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
292 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
293 | ||
56aa091d | 294 | out: |
78fe738d DES |
295 | dev_put(dev); |
296 | return ret; | |
297 | } | |
298 | ||
4710d806 | 299 | /* PANid, channel, beacon_order = 15, superframe_order = 15, |
78fe738d DES |
300 | * PAN_coordinator, battery_life_extension = 0, |
301 | * coord_realignment = 0, security_enable = 0 | |
302 | */ | |
1c582d91 | 303 | int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
304 | { |
305 | struct net_device *dev; | |
ae531b94 | 306 | struct ieee802154_addr addr; |
78fe738d DES |
307 | |
308 | u8 channel, bcn_ord, sf_ord; | |
309 | u8 page; | |
310 | int pan_coord, blx, coord_realign; | |
8f499f99 | 311 | int ret = -EBUSY; |
78fe738d DES |
312 | |
313 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
314 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
315 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
316 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
317 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
318 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
319 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
320 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
321 | ) | |
322 | return -EINVAL; | |
323 | ||
324 | dev = ieee802154_nl_get_dev(info); | |
325 | if (!dev) | |
326 | return -ENODEV; | |
8f499f99 AA |
327 | |
328 | if (netif_running(dev)) | |
56aa091d | 329 | goto out; |
78fe738d | 330 | |
8f499f99 AA |
331 | if (!ieee802154_mlme_ops(dev)->start_req) { |
332 | ret = -EOPNOTSUPP; | |
333 | goto out; | |
334 | } | |
335 | ||
ae531b94 PB |
336 | addr.mode = IEEE802154_ADDR_SHORT; |
337 | addr.short_addr = nla_get_shortaddr( | |
78fe738d | 338 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
ae531b94 PB |
339 | addr.pan_id = nla_get_shortaddr( |
340 | info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
78fe738d DES |
341 | |
342 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
343 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
344 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
345 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
346 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
347 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
348 | ||
349 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
350 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
351 | else | |
352 | page = 0; | |
353 | ||
ae531b94 | 354 | if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) { |
78fe738d DES |
355 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); |
356 | dev_put(dev); | |
357 | return -EINVAL; | |
358 | } | |
359 | ||
7bea1ea7 | 360 | rtnl_lock(); |
78fe738d DES |
361 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
362 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
7bea1ea7 | 363 | rtnl_unlock(); |
78fe738d | 364 | |
9f3295b9 AA |
365 | /* FIXME: add validation for unused parameters to be sane |
366 | * for SoftMAC | |
367 | */ | |
368 | ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS); | |
369 | ||
56aa091d | 370 | out: |
78fe738d DES |
371 | dev_put(dev); |
372 | return ret; | |
373 | } | |
374 | ||
1c582d91 | 375 | int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
376 | { |
377 | struct net_device *dev; | |
56aa091d | 378 | int ret = -EOPNOTSUPP; |
78fe738d DES |
379 | u8 type; |
380 | u32 channels; | |
381 | u8 duration; | |
382 | u8 page; | |
383 | ||
384 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
385 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
386 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
387 | return -EINVAL; | |
388 | ||
389 | dev = ieee802154_nl_get_dev(info); | |
390 | if (!dev) | |
391 | return -ENODEV; | |
56aa091d WA |
392 | if (!ieee802154_mlme_ops(dev)->scan_req) |
393 | goto out; | |
78fe738d DES |
394 | |
395 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
396 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
397 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
398 | ||
399 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
400 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
401 | else | |
402 | page = 0; | |
403 | ||
4710d806 VB |
404 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, |
405 | page, duration); | |
78fe738d | 406 | |
56aa091d | 407 | out: |
78fe738d DES |
408 | dev_put(dev); |
409 | return ret; | |
410 | } | |
411 | ||
1c582d91 | 412 | int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
413 | { |
414 | /* Request for interface name, index, type, IEEE address, | |
4710d806 VB |
415 | * PAN Id, short address |
416 | */ | |
78fe738d DES |
417 | struct sk_buff *msg; |
418 | struct net_device *dev = NULL; | |
419 | int rc = -ENOBUFS; | |
420 | ||
421 | pr_debug("%s\n", __func__); | |
422 | ||
423 | dev = ieee802154_nl_get_dev(info); | |
424 | if (!dev) | |
425 | return -ENODEV; | |
426 | ||
58050fce | 427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
78fe738d DES |
428 | if (!msg) |
429 | goto out_dev; | |
430 | ||
15e47304 | 431 | rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq, |
4710d806 | 432 | 0, dev); |
78fe738d DES |
433 | if (rc < 0) |
434 | goto out_free; | |
435 | ||
436 | dev_put(dev); | |
437 | ||
438 | return genlmsg_reply(msg, info); | |
439 | out_free: | |
440 | nlmsg_free(msg); | |
441 | out_dev: | |
442 | dev_put(dev); | |
443 | return rc; | |
78fe738d DES |
444 | } |
445 | ||
1c582d91 | 446 | int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb) |
78fe738d DES |
447 | { |
448 | struct net *net = sock_net(skb->sk); | |
449 | struct net_device *dev; | |
450 | int idx; | |
451 | int s_idx = cb->args[0]; | |
452 | ||
453 | pr_debug("%s\n", __func__); | |
454 | ||
455 | idx = 0; | |
456 | for_each_netdev(net, dev) { | |
01c8d2bb | 457 | if (idx < s_idx || dev->type != ARPHRD_IEEE802154) |
78fe738d DES |
458 | goto cont; |
459 | ||
15e47304 | 460 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid, |
4710d806 VB |
461 | cb->nlh->nlmsg_seq, |
462 | NLM_F_MULTI, dev) < 0) | |
78fe738d DES |
463 | break; |
464 | cont: | |
465 | idx++; | |
466 | } | |
467 | cb->args[0] = idx; | |
468 | ||
469 | return skb->len; | |
470 | } | |
e462ded6 PB |
471 | |
472 | int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info) | |
473 | { | |
474 | struct net_device *dev = NULL; | |
475 | struct ieee802154_mlme_ops *ops; | |
476 | struct ieee802154_mac_params params; | |
477 | struct wpan_phy *phy; | |
478 | int rc = -EINVAL; | |
479 | ||
480 | pr_debug("%s\n", __func__); | |
481 | ||
482 | dev = ieee802154_nl_get_dev(info); | |
483 | if (!dev) | |
484 | return -ENODEV; | |
485 | ||
486 | ops = ieee802154_mlme_ops(dev); | |
487 | ||
488 | if (!ops->get_mac_params || !ops->set_mac_params) { | |
489 | rc = -EOPNOTSUPP; | |
490 | goto out; | |
491 | } | |
492 | ||
493 | if (netif_running(dev)) { | |
494 | rc = -EBUSY; | |
495 | goto out; | |
496 | } | |
497 | ||
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]) | |
505 | goto out; | |
506 | ||
bd28a11f AA |
507 | phy = dev->ieee802154_ptr->wpan_phy; |
508 | get_device(&phy->dev); | |
e462ded6 | 509 | |
7bea1ea7 | 510 | rtnl_lock(); |
e462ded6 PB |
511 | ops->get_mac_params(dev, ¶ms); |
512 | ||
513 | if (info->attrs[IEEE802154_ATTR_TXPOWER]) | |
e2eb173a | 514 | params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]) * 100; |
e462ded6 PB |
515 | |
516 | if (info->attrs[IEEE802154_ATTR_LBT_ENABLED]) | |
517 | params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]); | |
518 | ||
519 | if (info->attrs[IEEE802154_ATTR_CCA_MODE]) | |
7fe9a388 | 520 | params.cca.mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]); |
e462ded6 PB |
521 | |
522 | if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) | |
32b23550 | 523 | params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) * 100; |
e462ded6 PB |
524 | |
525 | if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES]) | |
526 | params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]); | |
527 | ||
528 | if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]) | |
529 | params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]); | |
530 | ||
531 | if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]) | |
532 | params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]); | |
533 | ||
534 | if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) | |
535 | params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]); | |
536 | ||
537 | rc = ops->set_mac_params(dev, ¶ms); | |
7bea1ea7 | 538 | rtnl_unlock(); |
e462ded6 PB |
539 | |
540 | wpan_phy_put(phy); | |
541 | dev_put(dev); | |
e462ded6 | 542 | |
a543c598 AA |
543 | return 0; |
544 | ||
e462ded6 PB |
545 | out: |
546 | dev_put(dev); | |
547 | return rc; | |
548 | } | |
3e9c156e | 549 | |
3e9c156e PB |
550 | static int |
551 | ieee802154_llsec_parse_key_id(struct genl_info *info, | |
552 | struct ieee802154_llsec_key_id *desc) | |
553 | { | |
554 | memset(desc, 0, sizeof(*desc)); | |
555 | ||
556 | if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) | |
557 | return -EINVAL; | |
558 | ||
559 | desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]); | |
560 | ||
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])) | |
565 | return -EINVAL; | |
566 | ||
567 | desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); | |
568 | ||
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]); | |
572 | } else { | |
573 | desc->device_addr.mode = IEEE802154_ADDR_LONG; | |
574 | desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
575 | } | |
576 | } | |
577 | ||
578 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && | |
579 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]) | |
580 | return -EINVAL; | |
581 | ||
582 | if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && | |
583 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]) | |
584 | return -EINVAL; | |
585 | ||
586 | if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && | |
587 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]) | |
588 | return -EINVAL; | |
589 | ||
590 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT) | |
591 | desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]); | |
592 | ||
593 | switch (desc->mode) { | |
594 | case IEEE802154_SCF_KEY_SHORT_INDEX: | |
595 | { | |
596 | u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]); | |
4710d806 | 597 | |
3e9c156e PB |
598 | desc->short_source = cpu_to_le32(source); |
599 | break; | |
600 | } | |
601 | case IEEE802154_SCF_KEY_HW_INDEX: | |
602 | desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]); | |
603 | break; | |
604 | } | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | static int | |
610 | ieee802154_llsec_fill_key_id(struct sk_buff *msg, | |
611 | const struct ieee802154_llsec_key_id *desc) | |
612 | { | |
613 | if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode)) | |
614 | return -EMSGSIZE; | |
615 | ||
616 | if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) { | |
617 | if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, | |
618 | desc->device_addr.pan_id)) | |
619 | return -EMSGSIZE; | |
620 | ||
621 | if (desc->device_addr.mode == IEEE802154_ADDR_SHORT && | |
622 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, | |
623 | desc->device_addr.short_addr)) | |
624 | return -EMSGSIZE; | |
625 | ||
626 | if (desc->device_addr.mode == IEEE802154_ADDR_LONG && | |
627 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, | |
a558da09 ND |
628 | desc->device_addr.extended_addr, |
629 | IEEE802154_ATTR_PAD)) | |
3e9c156e PB |
630 | return -EMSGSIZE; |
631 | } | |
632 | ||
633 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && | |
634 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id)) | |
635 | return -EMSGSIZE; | |
636 | ||
637 | if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && | |
638 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT, | |
639 | le32_to_cpu(desc->short_source))) | |
640 | return -EMSGSIZE; | |
641 | ||
642 | if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && | |
643 | nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED, | |
a558da09 | 644 | desc->extended_source, IEEE802154_ATTR_PAD)) |
3e9c156e PB |
645 | return -EMSGSIZE; |
646 | ||
647 | return 0; | |
648 | } | |
649 | ||
650 | int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info) | |
651 | { | |
652 | struct sk_buff *msg; | |
653 | struct net_device *dev = NULL; | |
654 | int rc = -ENOBUFS; | |
655 | struct ieee802154_mlme_ops *ops; | |
656 | void *hdr; | |
657 | struct ieee802154_llsec_params params; | |
658 | ||
659 | pr_debug("%s\n", __func__); | |
660 | ||
661 | dev = ieee802154_nl_get_dev(info); | |
662 | if (!dev) | |
663 | return -ENODEV; | |
664 | ||
665 | ops = ieee802154_mlme_ops(dev); | |
b3f7a7b4 DC |
666 | if (!ops->llsec) { |
667 | rc = -EOPNOTSUPP; | |
668 | goto out_dev; | |
669 | } | |
3e9c156e PB |
670 | |
671 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
672 | if (!msg) | |
673 | goto out_dev; | |
674 | ||
675 | hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0, | |
4710d806 | 676 | IEEE802154_LLSEC_GETPARAMS); |
3e9c156e PB |
677 | if (!hdr) |
678 | goto out_free; | |
679 | ||
680 | rc = ops->llsec->get_params(dev, ¶ms); | |
681 | if (rc < 0) | |
682 | goto out_free; | |
683 | ||
684 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
685 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
686 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) || | |
687 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) || | |
688 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, | |
689 | be32_to_cpu(params.frame_counter)) || | |
690 | ieee802154_llsec_fill_key_id(msg, ¶ms.out_key)) | |
691 | goto out_free; | |
692 | ||
693 | dev_put(dev); | |
694 | ||
695 | return ieee802154_nl_reply(msg, info); | |
696 | out_free: | |
697 | nlmsg_free(msg); | |
698 | out_dev: | |
699 | dev_put(dev); | |
700 | return rc; | |
701 | } | |
702 | ||
703 | int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info) | |
704 | { | |
705 | struct net_device *dev = NULL; | |
706 | int rc = -EINVAL; | |
707 | struct ieee802154_mlme_ops *ops; | |
708 | struct ieee802154_llsec_params params; | |
709 | int changed = 0; | |
710 | ||
711 | pr_debug("%s\n", __func__); | |
712 | ||
713 | dev = ieee802154_nl_get_dev(info); | |
714 | if (!dev) | |
715 | return -ENODEV; | |
716 | ||
717 | if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] && | |
718 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] && | |
719 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) | |
720 | goto out; | |
721 | ||
722 | ops = ieee802154_mlme_ops(dev); | |
723 | if (!ops->llsec) { | |
724 | rc = -EOPNOTSUPP; | |
725 | goto out; | |
726 | } | |
727 | ||
728 | if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] && | |
729 | nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7) | |
730 | goto out; | |
731 | ||
732 | if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) { | |
733 | params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]); | |
734 | changed |= IEEE802154_LLSEC_PARAM_ENABLED; | |
735 | } | |
736 | ||
737 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) { | |
738 | if (ieee802154_llsec_parse_key_id(info, ¶ms.out_key)) | |
739 | goto out; | |
740 | ||
741 | changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; | |
742 | } | |
743 | ||
744 | if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) { | |
745 | params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]); | |
746 | changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; | |
747 | } | |
748 | ||
749 | if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) { | |
750 | u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
751 | ||
752 | params.frame_counter = cpu_to_be32(fc); | |
753 | changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; | |
754 | } | |
755 | ||
756 | rc = ops->llsec->set_params(dev, ¶ms, changed); | |
757 | ||
758 | dev_put(dev); | |
759 | ||
760 | return rc; | |
761 | out: | |
762 | dev_put(dev); | |
763 | return rc; | |
764 | } | |
765 | ||
3e9c156e PB |
766 | struct llsec_dump_data { |
767 | struct sk_buff *skb; | |
768 | int s_idx, s_idx2; | |
769 | int portid; | |
770 | int nlmsg_seq; | |
771 | struct net_device *dev; | |
772 | struct ieee802154_mlme_ops *ops; | |
773 | struct ieee802154_llsec_table *table; | |
774 | }; | |
775 | ||
776 | static int | |
777 | ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb, | |
4710d806 | 778 | int (*step)(struct llsec_dump_data *)) |
3e9c156e PB |
779 | { |
780 | struct net *net = sock_net(skb->sk); | |
781 | struct net_device *dev; | |
782 | struct llsec_dump_data data; | |
783 | int idx = 0; | |
784 | int first_dev = cb->args[0]; | |
785 | int rc; | |
786 | ||
787 | for_each_netdev(net, dev) { | |
01c8d2bb | 788 | if (idx < first_dev || dev->type != ARPHRD_IEEE802154) |
3e9c156e PB |
789 | goto skip; |
790 | ||
791 | data.ops = ieee802154_mlme_ops(dev); | |
792 | if (!data.ops->llsec) | |
793 | goto skip; | |
794 | ||
795 | data.skb = skb; | |
796 | data.s_idx = cb->args[1]; | |
797 | data.s_idx2 = cb->args[2]; | |
798 | data.dev = dev; | |
799 | data.portid = NETLINK_CB(cb->skb).portid; | |
800 | data.nlmsg_seq = cb->nlh->nlmsg_seq; | |
801 | ||
802 | data.ops->llsec->lock_table(dev); | |
803 | data.ops->llsec->get_table(data.dev, &data.table); | |
804 | rc = step(&data); | |
805 | data.ops->llsec->unlock_table(dev); | |
806 | ||
807 | if (rc < 0) | |
808 | break; | |
809 | ||
810 | skip: | |
811 | idx++; | |
812 | } | |
813 | cb->args[0] = idx; | |
814 | ||
815 | return skb->len; | |
816 | } | |
817 | ||
818 | static int | |
819 | ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info, | |
820 | int (*fn)(struct net_device*, struct genl_info*)) | |
821 | { | |
822 | struct net_device *dev = NULL; | |
823 | int rc = -EINVAL; | |
824 | ||
825 | dev = ieee802154_nl_get_dev(info); | |
826 | if (!dev) | |
827 | return -ENODEV; | |
828 | ||
829 | if (!ieee802154_mlme_ops(dev)->llsec) | |
830 | rc = -EOPNOTSUPP; | |
831 | else | |
832 | rc = fn(dev, info); | |
833 | ||
834 | dev_put(dev); | |
835 | return rc; | |
836 | } | |
837 | ||
3e9c156e PB |
838 | static int |
839 | ieee802154_llsec_parse_key(struct genl_info *info, | |
840 | struct ieee802154_llsec_key *key) | |
841 | { | |
842 | u8 frames; | |
843 | u32 commands[256 / 32]; | |
844 | ||
845 | memset(key, 0, sizeof(*key)); | |
846 | ||
847 | if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] || | |
848 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES]) | |
849 | return -EINVAL; | |
850 | ||
851 | frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]); | |
852 | if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) && | |
853 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) | |
854 | return -EINVAL; | |
855 | ||
856 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) { | |
857 | nla_memcpy(commands, | |
858 | info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS], | |
859 | 256 / 8); | |
860 | ||
861 | if (commands[0] || commands[1] || commands[2] || commands[3] || | |
862 | commands[4] || commands[5] || commands[6] || | |
863 | commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1)) | |
864 | return -EINVAL; | |
865 | ||
866 | key->cmd_frame_ids = commands[7]; | |
867 | } | |
868 | ||
869 | key->frame_types = frames; | |
870 | ||
871 | nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES], | |
872 | IEEE802154_LLSEC_KEY_SIZE); | |
873 | ||
874 | return 0; | |
875 | } | |
876 | ||
877 | static int llsec_add_key(struct net_device *dev, struct genl_info *info) | |
878 | { | |
879 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
880 | struct ieee802154_llsec_key key; | |
881 | struct ieee802154_llsec_key_id id; | |
882 | ||
883 | if (ieee802154_llsec_parse_key(info, &key) || | |
884 | ieee802154_llsec_parse_key_id(info, &id)) | |
885 | return -EINVAL; | |
886 | ||
887 | return ops->llsec->add_key(dev, &id, &key); | |
888 | } | |
889 | ||
890 | int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info) | |
891 | { | |
892 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
893 | (NLM_F_CREATE | NLM_F_EXCL)) | |
894 | return -EINVAL; | |
895 | ||
896 | return ieee802154_nl_llsec_change(skb, info, llsec_add_key); | |
897 | } | |
898 | ||
899 | static int llsec_remove_key(struct net_device *dev, struct genl_info *info) | |
900 | { | |
901 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
902 | struct ieee802154_llsec_key_id id; | |
903 | ||
904 | if (ieee802154_llsec_parse_key_id(info, &id)) | |
905 | return -EINVAL; | |
906 | ||
907 | return ops->llsec->del_key(dev, &id); | |
908 | } | |
909 | ||
910 | int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info) | |
911 | { | |
912 | return ieee802154_nl_llsec_change(skb, info, llsec_remove_key); | |
913 | } | |
914 | ||
915 | static int | |
916 | ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq, | |
917 | const struct ieee802154_llsec_key_entry *key, | |
918 | const struct net_device *dev) | |
919 | { | |
920 | void *hdr; | |
921 | u32 commands[256 / 32]; | |
922 | ||
923 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
924 | IEEE802154_LLSEC_LIST_KEY); | |
925 | if (!hdr) | |
926 | goto out; | |
927 | ||
928 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
929 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
930 | ieee802154_llsec_fill_key_id(msg, &key->id) || | |
931 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES, | |
932 | key->key->frame_types)) | |
933 | goto nla_put_failure; | |
934 | ||
935 | if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) { | |
936 | memset(commands, 0, sizeof(commands)); | |
937 | commands[7] = key->key->cmd_frame_ids; | |
938 | if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS, | |
939 | sizeof(commands), commands)) | |
940 | goto nla_put_failure; | |
941 | } | |
942 | ||
943 | if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES, | |
944 | IEEE802154_LLSEC_KEY_SIZE, key->key->key)) | |
945 | goto nla_put_failure; | |
946 | ||
947 | genlmsg_end(msg, hdr); | |
948 | return 0; | |
949 | ||
950 | nla_put_failure: | |
951 | genlmsg_cancel(msg, hdr); | |
952 | out: | |
953 | return -EMSGSIZE; | |
954 | } | |
955 | ||
956 | static int llsec_iter_keys(struct llsec_dump_data *data) | |
957 | { | |
958 | struct ieee802154_llsec_key_entry *pos; | |
959 | int rc = 0, idx = 0; | |
960 | ||
961 | list_for_each_entry(pos, &data->table->keys, list) { | |
962 | if (idx++ < data->s_idx) | |
963 | continue; | |
964 | ||
965 | if (ieee802154_nl_fill_key(data->skb, data->portid, | |
966 | data->nlmsg_seq, pos, data->dev)) { | |
967 | rc = -EMSGSIZE; | |
968 | break; | |
969 | } | |
970 | ||
971 | data->s_idx++; | |
972 | } | |
973 | ||
974 | return rc; | |
975 | } | |
976 | ||
977 | int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb) | |
978 | { | |
979 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys); | |
980 | } | |
981 | ||
3e9c156e PB |
982 | static int |
983 | llsec_parse_dev(struct genl_info *info, | |
984 | struct ieee802154_llsec_device *dev) | |
985 | { | |
986 | memset(dev, 0, sizeof(*dev)); | |
987 | ||
988 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || | |
989 | !info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
990 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] || | |
991 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] || | |
992 | (!!info->attrs[IEEE802154_ATTR_PAN_ID] != | |
993 | !!info->attrs[IEEE802154_ATTR_SHORT_ADDR])) | |
994 | return -EINVAL; | |
995 | ||
996 | if (info->attrs[IEEE802154_ATTR_PAN_ID]) { | |
997 | dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); | |
998 | dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]); | |
999 | } else { | |
1000 | dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF); | |
1001 | } | |
1002 | ||
1003 | dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1004 | dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
1005 | dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); | |
1006 | dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]); | |
1007 | ||
1008 | if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX) | |
1009 | return -EINVAL; | |
1010 | ||
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | static int llsec_add_dev(struct net_device *dev, struct genl_info *info) | |
1015 | { | |
1016 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1017 | struct ieee802154_llsec_device desc; | |
1018 | ||
1019 | if (llsec_parse_dev(info, &desc)) | |
1020 | return -EINVAL; | |
1021 | ||
1022 | return ops->llsec->add_dev(dev, &desc); | |
1023 | } | |
1024 | ||
1025 | int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info) | |
1026 | { | |
1027 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1028 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1029 | return -EINVAL; | |
1030 | ||
1031 | return ieee802154_nl_llsec_change(skb, info, llsec_add_dev); | |
1032 | } | |
1033 | ||
1034 | static int llsec_del_dev(struct net_device *dev, struct genl_info *info) | |
1035 | { | |
1036 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1037 | __le64 devaddr; | |
1038 | ||
1039 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR]) | |
1040 | return -EINVAL; | |
1041 | ||
1042 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1043 | ||
1044 | return ops->llsec->del_dev(dev, devaddr); | |
1045 | } | |
1046 | ||
1047 | int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info) | |
1048 | { | |
1049 | return ieee802154_nl_llsec_change(skb, info, llsec_del_dev); | |
1050 | } | |
1051 | ||
1052 | static int | |
1053 | ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq, | |
1054 | const struct ieee802154_llsec_device *desc, | |
1055 | const struct net_device *dev) | |
1056 | { | |
1057 | void *hdr; | |
1058 | ||
1059 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1060 | IEEE802154_LLSEC_LIST_DEV); | |
1061 | if (!hdr) | |
1062 | goto out; | |
1063 | ||
1064 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1065 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
1066 | nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) || | |
1067 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, | |
1068 | desc->short_addr) || | |
a558da09 ND |
1069 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr, |
1070 | IEEE802154_ATTR_PAD) || | |
3e9c156e PB |
1071 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, |
1072 | desc->frame_counter) || | |
1073 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, | |
1074 | desc->seclevel_exempt) || | |
1075 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode)) | |
1076 | goto nla_put_failure; | |
1077 | ||
1078 | genlmsg_end(msg, hdr); | |
1079 | return 0; | |
1080 | ||
1081 | nla_put_failure: | |
1082 | genlmsg_cancel(msg, hdr); | |
1083 | out: | |
1084 | return -EMSGSIZE; | |
1085 | } | |
1086 | ||
1087 | static int llsec_iter_devs(struct llsec_dump_data *data) | |
1088 | { | |
1089 | struct ieee802154_llsec_device *pos; | |
1090 | int rc = 0, idx = 0; | |
1091 | ||
1092 | list_for_each_entry(pos, &data->table->devices, list) { | |
1093 | if (idx++ < data->s_idx) | |
1094 | continue; | |
1095 | ||
1096 | if (ieee802154_nl_fill_dev(data->skb, data->portid, | |
1097 | data->nlmsg_seq, pos, data->dev)) { | |
1098 | rc = -EMSGSIZE; | |
1099 | break; | |
1100 | } | |
1101 | ||
1102 | data->s_idx++; | |
1103 | } | |
1104 | ||
1105 | return rc; | |
1106 | } | |
1107 | ||
1108 | int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb) | |
1109 | { | |
1110 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs); | |
1111 | } | |
1112 | ||
3e9c156e PB |
1113 | static int llsec_add_devkey(struct net_device *dev, struct genl_info *info) |
1114 | { | |
1115 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1116 | struct ieee802154_llsec_device_key key; | |
1117 | __le64 devaddr; | |
1118 | ||
1119 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || | |
1120 | !info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
1121 | ieee802154_llsec_parse_key_id(info, &key.key_id)) | |
1122 | return -EINVAL; | |
1123 | ||
1124 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1125 | key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
1126 | ||
1127 | return ops->llsec->add_devkey(dev, devaddr, &key); | |
1128 | } | |
1129 | ||
1130 | int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info) | |
1131 | { | |
1132 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1133 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1134 | return -EINVAL; | |
1135 | ||
1136 | return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey); | |
1137 | } | |
1138 | ||
1139 | static int llsec_del_devkey(struct net_device *dev, struct genl_info *info) | |
1140 | { | |
1141 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1142 | struct ieee802154_llsec_device_key key; | |
1143 | __le64 devaddr; | |
1144 | ||
1145 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
1146 | ieee802154_llsec_parse_key_id(info, &key.key_id)) | |
1147 | return -EINVAL; | |
1148 | ||
1149 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1150 | ||
1151 | return ops->llsec->del_devkey(dev, devaddr, &key); | |
1152 | } | |
1153 | ||
1154 | int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info) | |
1155 | { | |
1156 | return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey); | |
1157 | } | |
1158 | ||
1159 | static int | |
1160 | ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq, | |
1161 | __le64 devaddr, | |
1162 | const struct ieee802154_llsec_device_key *devkey, | |
1163 | const struct net_device *dev) | |
1164 | { | |
1165 | void *hdr; | |
1166 | ||
1167 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1168 | IEEE802154_LLSEC_LIST_DEVKEY); | |
1169 | if (!hdr) | |
1170 | goto out; | |
1171 | ||
1172 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1173 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
a558da09 ND |
1174 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr, |
1175 | IEEE802154_ATTR_PAD) || | |
3e9c156e PB |
1176 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, |
1177 | devkey->frame_counter) || | |
1178 | ieee802154_llsec_fill_key_id(msg, &devkey->key_id)) | |
1179 | goto nla_put_failure; | |
1180 | ||
1181 | genlmsg_end(msg, hdr); | |
1182 | return 0; | |
1183 | ||
1184 | nla_put_failure: | |
1185 | genlmsg_cancel(msg, hdr); | |
1186 | out: | |
1187 | return -EMSGSIZE; | |
1188 | } | |
1189 | ||
1190 | static int llsec_iter_devkeys(struct llsec_dump_data *data) | |
1191 | { | |
1192 | struct ieee802154_llsec_device *dpos; | |
1193 | struct ieee802154_llsec_device_key *kpos; | |
1194 | int rc = 0, idx = 0, idx2; | |
1195 | ||
1196 | list_for_each_entry(dpos, &data->table->devices, list) { | |
1197 | if (idx++ < data->s_idx) | |
1198 | continue; | |
1199 | ||
1200 | idx2 = 0; | |
1201 | ||
1202 | list_for_each_entry(kpos, &dpos->keys, list) { | |
1203 | if (idx2++ < data->s_idx2) | |
1204 | continue; | |
1205 | ||
1206 | if (ieee802154_nl_fill_devkey(data->skb, data->portid, | |
1207 | data->nlmsg_seq, | |
1208 | dpos->hwaddr, kpos, | |
1209 | data->dev)) { | |
1210 | return rc = -EMSGSIZE; | |
1211 | } | |
1212 | ||
1213 | data->s_idx2++; | |
1214 | } | |
1215 | ||
1216 | data->s_idx++; | |
1217 | } | |
1218 | ||
1219 | return rc; | |
1220 | } | |
1221 | ||
1222 | int ieee802154_llsec_dump_devkeys(struct sk_buff *skb, | |
1223 | struct netlink_callback *cb) | |
1224 | { | |
1225 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys); | |
1226 | } | |
1227 | ||
3e9c156e PB |
1228 | static int |
1229 | llsec_parse_seclevel(struct genl_info *info, | |
1230 | struct ieee802154_llsec_seclevel *sl) | |
1231 | { | |
1232 | memset(sl, 0, sizeof(*sl)); | |
1233 | ||
1234 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] || | |
1235 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] || | |
1236 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]) | |
1237 | return -EINVAL; | |
1238 | ||
1239 | sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]); | |
1240 | if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) { | |
1241 | if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]) | |
1242 | return -EINVAL; | |
1243 | ||
1244 | sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]); | |
1245 | } | |
1246 | ||
1247 | sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]); | |
1248 | sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info) | |
1254 | { | |
1255 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1256 | struct ieee802154_llsec_seclevel sl; | |
1257 | ||
1258 | if (llsec_parse_seclevel(info, &sl)) | |
1259 | return -EINVAL; | |
1260 | ||
1261 | return ops->llsec->add_seclevel(dev, &sl); | |
1262 | } | |
1263 | ||
1264 | int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1265 | { | |
1266 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1267 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1268 | return -EINVAL; | |
1269 | ||
1270 | return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel); | |
1271 | } | |
1272 | ||
1273 | static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info) | |
1274 | { | |
1275 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1276 | struct ieee802154_llsec_seclevel sl; | |
1277 | ||
1278 | if (llsec_parse_seclevel(info, &sl)) | |
1279 | return -EINVAL; | |
1280 | ||
1281 | return ops->llsec->del_seclevel(dev, &sl); | |
1282 | } | |
1283 | ||
1284 | int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1285 | { | |
1286 | return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel); | |
1287 | } | |
1288 | ||
1289 | static int | |
1290 | ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq, | |
1291 | const struct ieee802154_llsec_seclevel *sl, | |
1292 | const struct net_device *dev) | |
1293 | { | |
1294 | void *hdr; | |
1295 | ||
1296 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1297 | IEEE802154_LLSEC_LIST_SECLEVEL); | |
1298 | if (!hdr) | |
1299 | goto out; | |
1300 | ||
1301 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1302 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
1303 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) || | |
1304 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) || | |
1305 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, | |
1306 | sl->device_override)) | |
1307 | goto nla_put_failure; | |
1308 | ||
1309 | if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD && | |
1310 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID, | |
1311 | sl->cmd_frame_id)) | |
1312 | goto nla_put_failure; | |
1313 | ||
1314 | genlmsg_end(msg, hdr); | |
1315 | return 0; | |
1316 | ||
1317 | nla_put_failure: | |
1318 | genlmsg_cancel(msg, hdr); | |
1319 | out: | |
1320 | return -EMSGSIZE; | |
1321 | } | |
1322 | ||
1323 | static int llsec_iter_seclevels(struct llsec_dump_data *data) | |
1324 | { | |
1325 | struct ieee802154_llsec_seclevel *pos; | |
1326 | int rc = 0, idx = 0; | |
1327 | ||
1328 | list_for_each_entry(pos, &data->table->security_levels, list) { | |
1329 | if (idx++ < data->s_idx) | |
1330 | continue; | |
1331 | ||
1332 | if (ieee802154_nl_fill_seclevel(data->skb, data->portid, | |
1333 | data->nlmsg_seq, pos, | |
1334 | data->dev)) { | |
1335 | rc = -EMSGSIZE; | |
1336 | break; | |
1337 | } | |
1338 | ||
1339 | data->s_idx++; | |
1340 | } | |
1341 | ||
1342 | return rc; | |
1343 | } | |
1344 | ||
1345 | int ieee802154_llsec_dump_seclevels(struct sk_buff *skb, | |
1346 | struct netlink_callback *cb) | |
1347 | { | |
1348 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels); | |
1349 | } |