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 | ||
ae531b94 PB |
37 | static int nla_put_hwaddr(struct sk_buff *msg, int type, __le64 hwaddr) |
38 | { | |
39 | return nla_put_u64(msg, type, swab64((__force u64)hwaddr)); | |
40 | } | |
41 | ||
42 | static __le64 nla_get_hwaddr(const struct nlattr *nla) | |
43 | { | |
44 | return ieee802154_devaddr_from_raw(nla_data(nla)); | |
45 | } | |
46 | ||
47 | static int nla_put_shortaddr(struct sk_buff *msg, int type, __le16 addr) | |
48 | { | |
49 | return nla_put_u16(msg, type, le16_to_cpu(addr)); | |
50 | } | |
51 | ||
52 | static __le16 nla_get_shortaddr(const struct nlattr *nla) | |
53 | { | |
54 | return cpu_to_le16(nla_get_u16(nla)); | |
55 | } | |
56 | ||
9f3295b9 | 57 | static int ieee802154_nl_start_confirm(struct net_device *dev, u8 status) |
78fe738d DES |
58 | { |
59 | struct sk_buff *msg; | |
60 | ||
61 | pr_debug("%s\n", __func__); | |
62 | ||
63 | msg = ieee802154_nl_create(0, IEEE802154_START_CONF); | |
64 | if (!msg) | |
65 | return -ENOBUFS; | |
66 | ||
be51da0f DM |
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, | |
70 | dev->dev_addr) || | |
71 | nla_put_u8(msg, IEEE802154_ATTR_STATUS, status)) | |
72 | goto nla_put_failure; | |
2a94fe48 | 73 | return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP); |
78fe738d DES |
74 | |
75 | nla_put_failure: | |
76 | nlmsg_free(msg); | |
77 | return -ENOBUFS; | |
78 | } | |
79 | EXPORT_SYMBOL(ieee802154_nl_start_confirm); | |
80 | ||
15e47304 | 81 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, |
4710d806 | 82 | u32 seq, int flags, struct net_device *dev) |
78fe738d DES |
83 | { |
84 | void *hdr; | |
0a868b26 | 85 | struct wpan_phy *phy; |
e462ded6 | 86 | struct ieee802154_mlme_ops *ops; |
ae531b94 | 87 | __le16 short_addr, pan_id; |
78fe738d DES |
88 | |
89 | pr_debug("%s\n", __func__); | |
90 | ||
91 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, | |
4710d806 | 92 | IEEE802154_LIST_IFACE); |
78fe738d DES |
93 | if (!hdr) |
94 | goto out; | |
95 | ||
e462ded6 | 96 | ops = ieee802154_mlme_ops(dev); |
bd28a11f | 97 | phy = dev->ieee802154_ptr->wpan_phy; |
0a868b26 | 98 | BUG_ON(!phy); |
bd28a11f | 99 | get_device(&phy->dev); |
0a868b26 | 100 | |
e462ded6 PB |
101 | short_addr = ops->get_short_addr(dev); |
102 | pan_id = ops->get_pan_id(dev); | |
b70ab2e8 | 103 | |
be51da0f DM |
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, | |
108 | dev->dev_addr) || | |
ae531b94 PB |
109 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) || |
110 | nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id)) | |
be51da0f | 111 | goto nla_put_failure; |
e462ded6 PB |
112 | |
113 | if (ops->get_mac_params) { | |
114 | struct ieee802154_mac_params params; | |
115 | ||
7bea1ea7 | 116 | rtnl_lock(); |
e462ded6 | 117 | ops->get_mac_params(dev, ¶ms); |
7bea1ea7 | 118 | rtnl_unlock(); |
e462ded6 PB |
119 | |
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, | |
7fe9a388 | 124 | params.cca.mode) || |
e462ded6 PB |
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, | |
130 | params.min_be) || | |
131 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE, | |
132 | params.max_be) || | |
133 | nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES, | |
134 | params.frame_retries)) | |
135 | goto nla_put_failure; | |
136 | } | |
137 | ||
0a868b26 | 138 | wpan_phy_put(phy); |
053c095a JB |
139 | genlmsg_end(msg, hdr); |
140 | return 0; | |
78fe738d DES |
141 | |
142 | nla_put_failure: | |
0a868b26 | 143 | wpan_phy_put(phy); |
78fe738d DES |
144 | genlmsg_cancel(msg, hdr); |
145 | out: | |
146 | return -EMSGSIZE; | |
147 | } | |
148 | ||
149 | /* Requests from userspace */ | |
150 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
151 | { | |
152 | struct net_device *dev; | |
153 | ||
154 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
155 | char name[IFNAMSIZ + 1]; | |
4710d806 | 156 | |
78fe738d | 157 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], |
4710d806 | 158 | sizeof(name)); |
78fe738d | 159 | dev = dev_get_by_name(&init_net, name); |
4710d806 | 160 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) { |
78fe738d DES |
161 | dev = dev_get_by_index(&init_net, |
162 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
4710d806 | 163 | } else { |
78fe738d | 164 | return NULL; |
4710d806 | 165 | } |
78fe738d DES |
166 | |
167 | if (!dev) | |
168 | return NULL; | |
169 | ||
87023e10 AA |
170 | /* Check on mtu is currently a hacked solution because lowpan |
171 | * and wpan have the same ARPHRD type. | |
172 | */ | |
173 | if (dev->type != ARPHRD_IEEE802154 || dev->mtu != IEEE802154_MTU) { | |
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]); | |
248 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); | |
78fe738d DES |
249 | |
250 | ret = ieee802154_mlme_ops(dev)->assoc_resp(dev, &addr, | |
ae531b94 | 251 | nla_get_shortaddr(info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]), |
78fe738d DES |
252 | nla_get_u8(info->attrs[IEEE802154_ATTR_STATUS])); |
253 | ||
56aa091d | 254 | out: |
78fe738d DES |
255 | dev_put(dev); |
256 | return ret; | |
257 | } | |
258 | ||
1c582d91 | 259 | int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
260 | { |
261 | struct net_device *dev; | |
ae531b94 | 262 | struct ieee802154_addr addr; |
56aa091d | 263 | int ret = -EOPNOTSUPP; |
78fe738d DES |
264 | |
265 | if ((!info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] && | |
4710d806 | 266 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) || |
78fe738d DES |
267 | !info->attrs[IEEE802154_ATTR_REASON]) |
268 | return -EINVAL; | |
269 | ||
270 | dev = ieee802154_nl_get_dev(info); | |
271 | if (!dev) | |
272 | return -ENODEV; | |
56aa091d WA |
273 | if (!ieee802154_mlme_ops(dev)->disassoc_req) |
274 | goto out; | |
78fe738d DES |
275 | |
276 | if (info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]) { | |
ae531b94 PB |
277 | addr.mode = IEEE802154_ADDR_LONG; |
278 | addr.extended_addr = nla_get_hwaddr( | |
279 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); | |
78fe738d | 280 | } else { |
ae531b94 PB |
281 | addr.mode = IEEE802154_ADDR_SHORT; |
282 | addr.short_addr = nla_get_shortaddr( | |
78fe738d DES |
283 | info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]); |
284 | } | |
ae531b94 | 285 | addr.pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev); |
78fe738d DES |
286 | |
287 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
288 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
289 | ||
56aa091d | 290 | out: |
78fe738d DES |
291 | dev_put(dev); |
292 | return ret; | |
293 | } | |
294 | ||
4710d806 | 295 | /* PANid, channel, beacon_order = 15, superframe_order = 15, |
78fe738d DES |
296 | * PAN_coordinator, battery_life_extension = 0, |
297 | * coord_realignment = 0, security_enable = 0 | |
298 | */ | |
1c582d91 | 299 | int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
300 | { |
301 | struct net_device *dev; | |
ae531b94 | 302 | struct ieee802154_addr addr; |
78fe738d DES |
303 | |
304 | u8 channel, bcn_ord, sf_ord; | |
305 | u8 page; | |
306 | int pan_coord, blx, coord_realign; | |
8f499f99 | 307 | int ret = -EBUSY; |
78fe738d DES |
308 | |
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] | |
317 | ) | |
318 | return -EINVAL; | |
319 | ||
320 | dev = ieee802154_nl_get_dev(info); | |
321 | if (!dev) | |
322 | return -ENODEV; | |
8f499f99 AA |
323 | |
324 | if (netif_running(dev)) | |
56aa091d | 325 | goto out; |
78fe738d | 326 | |
8f499f99 AA |
327 | if (!ieee802154_mlme_ops(dev)->start_req) { |
328 | ret = -EOPNOTSUPP; | |
329 | goto out; | |
330 | } | |
331 | ||
ae531b94 PB |
332 | addr.mode = IEEE802154_ADDR_SHORT; |
333 | addr.short_addr = nla_get_shortaddr( | |
78fe738d | 334 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
ae531b94 PB |
335 | addr.pan_id = nla_get_shortaddr( |
336 | info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
78fe738d DES |
337 | |
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]); | |
344 | ||
345 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
346 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
347 | else | |
348 | page = 0; | |
349 | ||
ae531b94 | 350 | if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) { |
78fe738d DES |
351 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); |
352 | dev_put(dev); | |
353 | return -EINVAL; | |
354 | } | |
355 | ||
7bea1ea7 | 356 | rtnl_lock(); |
78fe738d DES |
357 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
358 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
7bea1ea7 | 359 | rtnl_unlock(); |
78fe738d | 360 | |
9f3295b9 AA |
361 | /* FIXME: add validation for unused parameters to be sane |
362 | * for SoftMAC | |
363 | */ | |
364 | ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS); | |
365 | ||
56aa091d | 366 | out: |
78fe738d DES |
367 | dev_put(dev); |
368 | return ret; | |
369 | } | |
370 | ||
1c582d91 | 371 | int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
372 | { |
373 | struct net_device *dev; | |
56aa091d | 374 | int ret = -EOPNOTSUPP; |
78fe738d DES |
375 | u8 type; |
376 | u32 channels; | |
377 | u8 duration; | |
378 | u8 page; | |
379 | ||
380 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
381 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
382 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
383 | return -EINVAL; | |
384 | ||
385 | dev = ieee802154_nl_get_dev(info); | |
386 | if (!dev) | |
387 | return -ENODEV; | |
56aa091d WA |
388 | if (!ieee802154_mlme_ops(dev)->scan_req) |
389 | goto out; | |
78fe738d DES |
390 | |
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]); | |
394 | ||
395 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
396 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
397 | else | |
398 | page = 0; | |
399 | ||
4710d806 VB |
400 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, |
401 | page, duration); | |
78fe738d | 402 | |
56aa091d | 403 | out: |
78fe738d DES |
404 | dev_put(dev); |
405 | return ret; | |
406 | } | |
407 | ||
1c582d91 | 408 | int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
409 | { |
410 | /* Request for interface name, index, type, IEEE address, | |
4710d806 VB |
411 | * PAN Id, short address |
412 | */ | |
78fe738d DES |
413 | struct sk_buff *msg; |
414 | struct net_device *dev = NULL; | |
415 | int rc = -ENOBUFS; | |
416 | ||
417 | pr_debug("%s\n", __func__); | |
418 | ||
419 | dev = ieee802154_nl_get_dev(info); | |
420 | if (!dev) | |
421 | return -ENODEV; | |
422 | ||
58050fce | 423 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
78fe738d DES |
424 | if (!msg) |
425 | goto out_dev; | |
426 | ||
15e47304 | 427 | rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq, |
4710d806 | 428 | 0, dev); |
78fe738d DES |
429 | if (rc < 0) |
430 | goto out_free; | |
431 | ||
432 | dev_put(dev); | |
433 | ||
434 | return genlmsg_reply(msg, info); | |
435 | out_free: | |
436 | nlmsg_free(msg); | |
437 | out_dev: | |
438 | dev_put(dev); | |
439 | return rc; | |
78fe738d DES |
440 | } |
441 | ||
1c582d91 | 442 | int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb) |
78fe738d DES |
443 | { |
444 | struct net *net = sock_net(skb->sk); | |
445 | struct net_device *dev; | |
446 | int idx; | |
447 | int s_idx = cb->args[0]; | |
448 | ||
449 | pr_debug("%s\n", __func__); | |
450 | ||
451 | idx = 0; | |
452 | for_each_netdev(net, dev) { | |
87023e10 AA |
453 | /* Check on mtu is currently a hacked solution because lowpan |
454 | * and wpan have the same ARPHRD type. | |
455 | */ | |
456 | if (idx < s_idx || dev->type != ARPHRD_IEEE802154 || | |
457 | dev->mtu != IEEE802154_MTU) | |
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]) | |
514 | params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]); | |
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]) | |
523 | params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]); | |
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, | |
628 | desc->device_addr.extended_addr)) | |
629 | return -EMSGSIZE; | |
630 | } | |
631 | ||
632 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && | |
633 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id)) | |
634 | return -EMSGSIZE; | |
635 | ||
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))) | |
639 | return -EMSGSIZE; | |
640 | ||
641 | if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && | |
642 | nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED, | |
643 | desc->extended_source)) | |
644 | return -EMSGSIZE; | |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
649 | int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info) | |
650 | { | |
651 | struct sk_buff *msg; | |
652 | struct net_device *dev = NULL; | |
653 | int rc = -ENOBUFS; | |
654 | struct ieee802154_mlme_ops *ops; | |
655 | void *hdr; | |
656 | struct ieee802154_llsec_params params; | |
657 | ||
658 | pr_debug("%s\n", __func__); | |
659 | ||
660 | dev = ieee802154_nl_get_dev(info); | |
661 | if (!dev) | |
662 | return -ENODEV; | |
663 | ||
664 | ops = ieee802154_mlme_ops(dev); | |
b3f7a7b4 DC |
665 | if (!ops->llsec) { |
666 | rc = -EOPNOTSUPP; | |
667 | goto out_dev; | |
668 | } | |
3e9c156e PB |
669 | |
670 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
671 | if (!msg) | |
672 | goto out_dev; | |
673 | ||
674 | hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0, | |
4710d806 | 675 | IEEE802154_LLSEC_GETPARAMS); |
3e9c156e PB |
676 | if (!hdr) |
677 | goto out_free; | |
678 | ||
679 | rc = ops->llsec->get_params(dev, ¶ms); | |
680 | if (rc < 0) | |
681 | goto out_free; | |
682 | ||
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)) | |
690 | goto out_free; | |
691 | ||
692 | dev_put(dev); | |
693 | ||
694 | return ieee802154_nl_reply(msg, info); | |
695 | out_free: | |
696 | nlmsg_free(msg); | |
697 | out_dev: | |
698 | dev_put(dev); | |
699 | return rc; | |
700 | } | |
701 | ||
702 | int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info) | |
703 | { | |
704 | struct net_device *dev = NULL; | |
705 | int rc = -EINVAL; | |
706 | struct ieee802154_mlme_ops *ops; | |
707 | struct ieee802154_llsec_params params; | |
708 | int changed = 0; | |
709 | ||
710 | pr_debug("%s\n", __func__); | |
711 | ||
712 | dev = ieee802154_nl_get_dev(info); | |
713 | if (!dev) | |
714 | return -ENODEV; | |
715 | ||
716 | if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] && | |
717 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] && | |
718 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) | |
719 | goto out; | |
720 | ||
721 | ops = ieee802154_mlme_ops(dev); | |
722 | if (!ops->llsec) { | |
723 | rc = -EOPNOTSUPP; | |
724 | goto out; | |
725 | } | |
726 | ||
727 | if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] && | |
728 | nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7) | |
729 | goto out; | |
730 | ||
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; | |
734 | } | |
735 | ||
736 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) { | |
737 | if (ieee802154_llsec_parse_key_id(info, ¶ms.out_key)) | |
738 | goto out; | |
739 | ||
740 | changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; | |
741 | } | |
742 | ||
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; | |
746 | } | |
747 | ||
748 | if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) { | |
749 | u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
750 | ||
751 | params.frame_counter = cpu_to_be32(fc); | |
752 | changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; | |
753 | } | |
754 | ||
755 | rc = ops->llsec->set_params(dev, ¶ms, changed); | |
756 | ||
757 | dev_put(dev); | |
758 | ||
759 | return rc; | |
760 | out: | |
761 | dev_put(dev); | |
762 | return rc; | |
763 | } | |
764 | ||
3e9c156e PB |
765 | struct llsec_dump_data { |
766 | struct sk_buff *skb; | |
767 | int s_idx, s_idx2; | |
768 | int portid; | |
769 | int nlmsg_seq; | |
770 | struct net_device *dev; | |
771 | struct ieee802154_mlme_ops *ops; | |
772 | struct ieee802154_llsec_table *table; | |
773 | }; | |
774 | ||
775 | static int | |
776 | ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb, | |
4710d806 | 777 | int (*step)(struct llsec_dump_data *)) |
3e9c156e PB |
778 | { |
779 | struct net *net = sock_net(skb->sk); | |
780 | struct net_device *dev; | |
781 | struct llsec_dump_data data; | |
782 | int idx = 0; | |
783 | int first_dev = cb->args[0]; | |
784 | int rc; | |
785 | ||
786 | for_each_netdev(net, dev) { | |
87023e10 AA |
787 | /* Check on mtu is currently a hacked solution because lowpan |
788 | * and wpan have the same ARPHRD type. | |
789 | */ | |
790 | if (idx < first_dev || dev->type != ARPHRD_IEEE802154 || | |
791 | dev->mtu != IEEE802154_MTU) | |
3e9c156e PB |
792 | goto skip; |
793 | ||
794 | data.ops = ieee802154_mlme_ops(dev); | |
795 | if (!data.ops->llsec) | |
796 | goto skip; | |
797 | ||
798 | data.skb = skb; | |
799 | data.s_idx = cb->args[1]; | |
800 | data.s_idx2 = cb->args[2]; | |
801 | data.dev = dev; | |
802 | data.portid = NETLINK_CB(cb->skb).portid; | |
803 | data.nlmsg_seq = cb->nlh->nlmsg_seq; | |
804 | ||
805 | data.ops->llsec->lock_table(dev); | |
806 | data.ops->llsec->get_table(data.dev, &data.table); | |
807 | rc = step(&data); | |
808 | data.ops->llsec->unlock_table(dev); | |
809 | ||
810 | if (rc < 0) | |
811 | break; | |
812 | ||
813 | skip: | |
814 | idx++; | |
815 | } | |
816 | cb->args[0] = idx; | |
817 | ||
818 | return skb->len; | |
819 | } | |
820 | ||
821 | static int | |
822 | ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info, | |
823 | int (*fn)(struct net_device*, struct genl_info*)) | |
824 | { | |
825 | struct net_device *dev = NULL; | |
826 | int rc = -EINVAL; | |
827 | ||
828 | dev = ieee802154_nl_get_dev(info); | |
829 | if (!dev) | |
830 | return -ENODEV; | |
831 | ||
832 | if (!ieee802154_mlme_ops(dev)->llsec) | |
833 | rc = -EOPNOTSUPP; | |
834 | else | |
835 | rc = fn(dev, info); | |
836 | ||
837 | dev_put(dev); | |
838 | return rc; | |
839 | } | |
840 | ||
3e9c156e PB |
841 | static int |
842 | ieee802154_llsec_parse_key(struct genl_info *info, | |
843 | struct ieee802154_llsec_key *key) | |
844 | { | |
845 | u8 frames; | |
846 | u32 commands[256 / 32]; | |
847 | ||
848 | memset(key, 0, sizeof(*key)); | |
849 | ||
850 | if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] || | |
851 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES]) | |
852 | return -EINVAL; | |
853 | ||
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]) | |
857 | return -EINVAL; | |
858 | ||
859 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) { | |
860 | nla_memcpy(commands, | |
861 | info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS], | |
862 | 256 / 8); | |
863 | ||
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)) | |
867 | return -EINVAL; | |
868 | ||
869 | key->cmd_frame_ids = commands[7]; | |
870 | } | |
871 | ||
872 | key->frame_types = frames; | |
873 | ||
874 | nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES], | |
875 | IEEE802154_LLSEC_KEY_SIZE); | |
876 | ||
877 | return 0; | |
878 | } | |
879 | ||
880 | static int llsec_add_key(struct net_device *dev, struct genl_info *info) | |
881 | { | |
882 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
883 | struct ieee802154_llsec_key key; | |
884 | struct ieee802154_llsec_key_id id; | |
885 | ||
886 | if (ieee802154_llsec_parse_key(info, &key) || | |
887 | ieee802154_llsec_parse_key_id(info, &id)) | |
888 | return -EINVAL; | |
889 | ||
890 | return ops->llsec->add_key(dev, &id, &key); | |
891 | } | |
892 | ||
893 | int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info) | |
894 | { | |
895 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
896 | (NLM_F_CREATE | NLM_F_EXCL)) | |
897 | return -EINVAL; | |
898 | ||
899 | return ieee802154_nl_llsec_change(skb, info, llsec_add_key); | |
900 | } | |
901 | ||
902 | static int llsec_remove_key(struct net_device *dev, struct genl_info *info) | |
903 | { | |
904 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
905 | struct ieee802154_llsec_key_id id; | |
906 | ||
907 | if (ieee802154_llsec_parse_key_id(info, &id)) | |
908 | return -EINVAL; | |
909 | ||
910 | return ops->llsec->del_key(dev, &id); | |
911 | } | |
912 | ||
913 | int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info) | |
914 | { | |
915 | return ieee802154_nl_llsec_change(skb, info, llsec_remove_key); | |
916 | } | |
917 | ||
918 | static int | |
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) | |
922 | { | |
923 | void *hdr; | |
924 | u32 commands[256 / 32]; | |
925 | ||
926 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
927 | IEEE802154_LLSEC_LIST_KEY); | |
928 | if (!hdr) | |
929 | goto out; | |
930 | ||
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; | |
937 | ||
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; | |
944 | } | |
945 | ||
946 | if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES, | |
947 | IEEE802154_LLSEC_KEY_SIZE, key->key->key)) | |
948 | goto nla_put_failure; | |
949 | ||
950 | genlmsg_end(msg, hdr); | |
951 | return 0; | |
952 | ||
953 | nla_put_failure: | |
954 | genlmsg_cancel(msg, hdr); | |
955 | out: | |
956 | return -EMSGSIZE; | |
957 | } | |
958 | ||
959 | static int llsec_iter_keys(struct llsec_dump_data *data) | |
960 | { | |
961 | struct ieee802154_llsec_key_entry *pos; | |
962 | int rc = 0, idx = 0; | |
963 | ||
964 | list_for_each_entry(pos, &data->table->keys, list) { | |
965 | if (idx++ < data->s_idx) | |
966 | continue; | |
967 | ||
968 | if (ieee802154_nl_fill_key(data->skb, data->portid, | |
969 | data->nlmsg_seq, pos, data->dev)) { | |
970 | rc = -EMSGSIZE; | |
971 | break; | |
972 | } | |
973 | ||
974 | data->s_idx++; | |
975 | } | |
976 | ||
977 | return rc; | |
978 | } | |
979 | ||
980 | int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb) | |
981 | { | |
982 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys); | |
983 | } | |
984 | ||
3e9c156e PB |
985 | static int |
986 | llsec_parse_dev(struct genl_info *info, | |
987 | struct ieee802154_llsec_device *dev) | |
988 | { | |
989 | memset(dev, 0, sizeof(*dev)); | |
990 | ||
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])) | |
997 | return -EINVAL; | |
998 | ||
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]); | |
1002 | } else { | |
1003 | dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF); | |
1004 | } | |
1005 | ||
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]); | |
1010 | ||
1011 | if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX) | |
1012 | return -EINVAL; | |
1013 | ||
1014 | return 0; | |
1015 | } | |
1016 | ||
1017 | static int llsec_add_dev(struct net_device *dev, struct genl_info *info) | |
1018 | { | |
1019 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1020 | struct ieee802154_llsec_device desc; | |
1021 | ||
1022 | if (llsec_parse_dev(info, &desc)) | |
1023 | return -EINVAL; | |
1024 | ||
1025 | return ops->llsec->add_dev(dev, &desc); | |
1026 | } | |
1027 | ||
1028 | int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info) | |
1029 | { | |
1030 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1031 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1032 | return -EINVAL; | |
1033 | ||
1034 | return ieee802154_nl_llsec_change(skb, info, llsec_add_dev); | |
1035 | } | |
1036 | ||
1037 | static int llsec_del_dev(struct net_device *dev, struct genl_info *info) | |
1038 | { | |
1039 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1040 | __le64 devaddr; | |
1041 | ||
1042 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR]) | |
1043 | return -EINVAL; | |
1044 | ||
1045 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1046 | ||
1047 | return ops->llsec->del_dev(dev, devaddr); | |
1048 | } | |
1049 | ||
1050 | int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info) | |
1051 | { | |
1052 | return ieee802154_nl_llsec_change(skb, info, llsec_del_dev); | |
1053 | } | |
1054 | ||
1055 | static int | |
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) | |
1059 | { | |
1060 | void *hdr; | |
1061 | ||
1062 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1063 | IEEE802154_LLSEC_LIST_DEV); | |
1064 | if (!hdr) | |
1065 | goto out; | |
1066 | ||
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; | |
1079 | ||
1080 | genlmsg_end(msg, hdr); | |
1081 | return 0; | |
1082 | ||
1083 | nla_put_failure: | |
1084 | genlmsg_cancel(msg, hdr); | |
1085 | out: | |
1086 | return -EMSGSIZE; | |
1087 | } | |
1088 | ||
1089 | static int llsec_iter_devs(struct llsec_dump_data *data) | |
1090 | { | |
1091 | struct ieee802154_llsec_device *pos; | |
1092 | int rc = 0, idx = 0; | |
1093 | ||
1094 | list_for_each_entry(pos, &data->table->devices, list) { | |
1095 | if (idx++ < data->s_idx) | |
1096 | continue; | |
1097 | ||
1098 | if (ieee802154_nl_fill_dev(data->skb, data->portid, | |
1099 | data->nlmsg_seq, pos, data->dev)) { | |
1100 | rc = -EMSGSIZE; | |
1101 | break; | |
1102 | } | |
1103 | ||
1104 | data->s_idx++; | |
1105 | } | |
1106 | ||
1107 | return rc; | |
1108 | } | |
1109 | ||
1110 | int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb) | |
1111 | { | |
1112 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs); | |
1113 | } | |
1114 | ||
3e9c156e PB |
1115 | static int llsec_add_devkey(struct net_device *dev, struct genl_info *info) |
1116 | { | |
1117 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1118 | struct ieee802154_llsec_device_key key; | |
1119 | __le64 devaddr; | |
1120 | ||
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)) | |
1124 | return -EINVAL; | |
1125 | ||
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]); | |
1128 | ||
1129 | return ops->llsec->add_devkey(dev, devaddr, &key); | |
1130 | } | |
1131 | ||
1132 | int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info) | |
1133 | { | |
1134 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1135 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1136 | return -EINVAL; | |
1137 | ||
1138 | return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey); | |
1139 | } | |
1140 | ||
1141 | static int llsec_del_devkey(struct net_device *dev, struct genl_info *info) | |
1142 | { | |
1143 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1144 | struct ieee802154_llsec_device_key key; | |
1145 | __le64 devaddr; | |
1146 | ||
1147 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
1148 | ieee802154_llsec_parse_key_id(info, &key.key_id)) | |
1149 | return -EINVAL; | |
1150 | ||
1151 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1152 | ||
1153 | return ops->llsec->del_devkey(dev, devaddr, &key); | |
1154 | } | |
1155 | ||
1156 | int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info) | |
1157 | { | |
1158 | return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey); | |
1159 | } | |
1160 | ||
1161 | static int | |
1162 | ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq, | |
1163 | __le64 devaddr, | |
1164 | const struct ieee802154_llsec_device_key *devkey, | |
1165 | const struct net_device *dev) | |
1166 | { | |
1167 | void *hdr; | |
1168 | ||
1169 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1170 | IEEE802154_LLSEC_LIST_DEVKEY); | |
1171 | if (!hdr) | |
1172 | goto out; | |
1173 | ||
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; | |
1181 | ||
1182 | genlmsg_end(msg, hdr); | |
1183 | return 0; | |
1184 | ||
1185 | nla_put_failure: | |
1186 | genlmsg_cancel(msg, hdr); | |
1187 | out: | |
1188 | return -EMSGSIZE; | |
1189 | } | |
1190 | ||
1191 | static int llsec_iter_devkeys(struct llsec_dump_data *data) | |
1192 | { | |
1193 | struct ieee802154_llsec_device *dpos; | |
1194 | struct ieee802154_llsec_device_key *kpos; | |
1195 | int rc = 0, idx = 0, idx2; | |
1196 | ||
1197 | list_for_each_entry(dpos, &data->table->devices, list) { | |
1198 | if (idx++ < data->s_idx) | |
1199 | continue; | |
1200 | ||
1201 | idx2 = 0; | |
1202 | ||
1203 | list_for_each_entry(kpos, &dpos->keys, list) { | |
1204 | if (idx2++ < data->s_idx2) | |
1205 | continue; | |
1206 | ||
1207 | if (ieee802154_nl_fill_devkey(data->skb, data->portid, | |
1208 | data->nlmsg_seq, | |
1209 | dpos->hwaddr, kpos, | |
1210 | data->dev)) { | |
1211 | return rc = -EMSGSIZE; | |
1212 | } | |
1213 | ||
1214 | data->s_idx2++; | |
1215 | } | |
1216 | ||
1217 | data->s_idx++; | |
1218 | } | |
1219 | ||
1220 | return rc; | |
1221 | } | |
1222 | ||
1223 | int ieee802154_llsec_dump_devkeys(struct sk_buff *skb, | |
1224 | struct netlink_callback *cb) | |
1225 | { | |
1226 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys); | |
1227 | } | |
1228 | ||
3e9c156e PB |
1229 | static int |
1230 | llsec_parse_seclevel(struct genl_info *info, | |
1231 | struct ieee802154_llsec_seclevel *sl) | |
1232 | { | |
1233 | memset(sl, 0, sizeof(*sl)); | |
1234 | ||
1235 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] || | |
1236 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] || | |
1237 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]) | |
1238 | return -EINVAL; | |
1239 | ||
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]) | |
1243 | return -EINVAL; | |
1244 | ||
1245 | sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]); | |
1246 | } | |
1247 | ||
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]); | |
1250 | ||
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info) | |
1255 | { | |
1256 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1257 | struct ieee802154_llsec_seclevel sl; | |
1258 | ||
1259 | if (llsec_parse_seclevel(info, &sl)) | |
1260 | return -EINVAL; | |
1261 | ||
1262 | return ops->llsec->add_seclevel(dev, &sl); | |
1263 | } | |
1264 | ||
1265 | int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1266 | { | |
1267 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1268 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1269 | return -EINVAL; | |
1270 | ||
1271 | return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel); | |
1272 | } | |
1273 | ||
1274 | static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info) | |
1275 | { | |
1276 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1277 | struct ieee802154_llsec_seclevel sl; | |
1278 | ||
1279 | if (llsec_parse_seclevel(info, &sl)) | |
1280 | return -EINVAL; | |
1281 | ||
1282 | return ops->llsec->del_seclevel(dev, &sl); | |
1283 | } | |
1284 | ||
1285 | int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1286 | { | |
1287 | return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel); | |
1288 | } | |
1289 | ||
1290 | static int | |
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) | |
1294 | { | |
1295 | void *hdr; | |
1296 | ||
1297 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1298 | IEEE802154_LLSEC_LIST_SECLEVEL); | |
1299 | if (!hdr) | |
1300 | goto out; | |
1301 | ||
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; | |
1309 | ||
1310 | if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD && | |
1311 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID, | |
1312 | sl->cmd_frame_id)) | |
1313 | goto nla_put_failure; | |
1314 | ||
1315 | genlmsg_end(msg, hdr); | |
1316 | return 0; | |
1317 | ||
1318 | nla_put_failure: | |
1319 | genlmsg_cancel(msg, hdr); | |
1320 | out: | |
1321 | return -EMSGSIZE; | |
1322 | } | |
1323 | ||
1324 | static int llsec_iter_seclevels(struct llsec_dump_data *data) | |
1325 | { | |
1326 | struct ieee802154_llsec_seclevel *pos; | |
1327 | int rc = 0, idx = 0; | |
1328 | ||
1329 | list_for_each_entry(pos, &data->table->security_levels, list) { | |
1330 | if (idx++ < data->s_idx) | |
1331 | continue; | |
1332 | ||
1333 | if (ieee802154_nl_fill_seclevel(data->skb, data->portid, | |
1334 | data->nlmsg_seq, pos, | |
1335 | data->dev)) { | |
1336 | rc = -EMSGSIZE; | |
1337 | break; | |
1338 | } | |
1339 | ||
1340 | data->s_idx++; | |
1341 | } | |
1342 | ||
1343 | return rc; | |
1344 | } | |
1345 | ||
1346 | int ieee802154_llsec_dump_seclevels(struct sk_buff *skb, | |
1347 | struct netlink_callback *cb) | |
1348 | { | |
1349 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels); | |
1350 | } |