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 | } | |
78fe738d | 79 | |
15e47304 | 80 | static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 portid, |
4710d806 | 81 | u32 seq, int flags, struct net_device *dev) |
78fe738d DES |
82 | { |
83 | void *hdr; | |
0a868b26 | 84 | struct wpan_phy *phy; |
e462ded6 | 85 | struct ieee802154_mlme_ops *ops; |
ae531b94 | 86 | __le16 short_addr, pan_id; |
78fe738d DES |
87 | |
88 | pr_debug("%s\n", __func__); | |
89 | ||
90 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, flags, | |
4710d806 | 91 | IEEE802154_LIST_IFACE); |
78fe738d DES |
92 | if (!hdr) |
93 | goto out; | |
94 | ||
e462ded6 | 95 | ops = ieee802154_mlme_ops(dev); |
bd28a11f | 96 | phy = dev->ieee802154_ptr->wpan_phy; |
0a868b26 | 97 | BUG_ON(!phy); |
bd28a11f | 98 | get_device(&phy->dev); |
0a868b26 | 99 | |
c947f7e1 AA |
100 | rtnl_lock(); |
101 | short_addr = dev->ieee802154_ptr->short_addr; | |
102 | pan_id = dev->ieee802154_ptr->pan_id; | |
103 | rtnl_unlock(); | |
b70ab2e8 | 104 | |
be51da0f DM |
105 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || |
106 | nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || | |
107 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
108 | nla_put(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN, | |
109 | dev->dev_addr) || | |
ae531b94 PB |
110 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) || |
111 | nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id)) | |
be51da0f | 112 | goto nla_put_failure; |
e462ded6 PB |
113 | |
114 | if (ops->get_mac_params) { | |
115 | struct ieee802154_mac_params params; | |
116 | ||
7bea1ea7 | 117 | rtnl_lock(); |
e462ded6 | 118 | ops->get_mac_params(dev, ¶ms); |
7bea1ea7 | 119 | rtnl_unlock(); |
e462ded6 PB |
120 | |
121 | if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER, | |
e2eb173a | 122 | params.transmit_power / 100) || |
e462ded6 PB |
123 | nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) || |
124 | nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, | |
7fe9a388 | 125 | params.cca.mode) || |
e462ded6 | 126 | nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL, |
32b23550 | 127 | params.cca_ed_level / 100) || |
e462ded6 PB |
128 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES, |
129 | params.csma_retries) || | |
130 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE, | |
131 | params.min_be) || | |
132 | nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE, | |
133 | params.max_be) || | |
134 | nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES, | |
135 | params.frame_retries)) | |
136 | goto nla_put_failure; | |
137 | } | |
138 | ||
0a868b26 | 139 | wpan_phy_put(phy); |
053c095a JB |
140 | genlmsg_end(msg, hdr); |
141 | return 0; | |
78fe738d DES |
142 | |
143 | nla_put_failure: | |
0a868b26 | 144 | wpan_phy_put(phy); |
78fe738d DES |
145 | genlmsg_cancel(msg, hdr); |
146 | out: | |
147 | return -EMSGSIZE; | |
148 | } | |
149 | ||
150 | /* Requests from userspace */ | |
151 | static struct net_device *ieee802154_nl_get_dev(struct genl_info *info) | |
152 | { | |
153 | struct net_device *dev; | |
154 | ||
155 | if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { | |
156 | char name[IFNAMSIZ + 1]; | |
4710d806 | 157 | |
78fe738d | 158 | nla_strlcpy(name, info->attrs[IEEE802154_ATTR_DEV_NAME], |
4710d806 | 159 | sizeof(name)); |
78fe738d | 160 | dev = dev_get_by_name(&init_net, name); |
4710d806 | 161 | } else if (info->attrs[IEEE802154_ATTR_DEV_INDEX]) { |
78fe738d DES |
162 | dev = dev_get_by_index(&init_net, |
163 | nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX])); | |
4710d806 | 164 | } else { |
78fe738d | 165 | return NULL; |
4710d806 | 166 | } |
78fe738d DES |
167 | |
168 | if (!dev) | |
169 | return NULL; | |
170 | ||
01c8d2bb | 171 | if (dev->type != ARPHRD_IEEE802154) { |
78fe738d DES |
172 | dev_put(dev); |
173 | return NULL; | |
174 | } | |
175 | ||
176 | return dev; | |
177 | } | |
178 | ||
1c582d91 | 179 | int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
180 | { |
181 | struct net_device *dev; | |
ae531b94 | 182 | struct ieee802154_addr addr; |
78fe738d | 183 | u8 page; |
56aa091d | 184 | int ret = -EOPNOTSUPP; |
78fe738d DES |
185 | |
186 | if (!info->attrs[IEEE802154_ATTR_CHANNEL] || | |
187 | !info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
188 | (!info->attrs[IEEE802154_ATTR_COORD_HW_ADDR] && | |
189 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]) || | |
190 | !info->attrs[IEEE802154_ATTR_CAPABILITY]) | |
191 | return -EINVAL; | |
192 | ||
193 | dev = ieee802154_nl_get_dev(info); | |
194 | if (!dev) | |
195 | return -ENODEV; | |
56aa091d WA |
196 | if (!ieee802154_mlme_ops(dev)->assoc_req) |
197 | goto out; | |
78fe738d DES |
198 | |
199 | if (info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]) { | |
ae531b94 PB |
200 | addr.mode = IEEE802154_ADDR_LONG; |
201 | addr.extended_addr = nla_get_hwaddr( | |
202 | info->attrs[IEEE802154_ATTR_COORD_HW_ADDR]); | |
78fe738d | 203 | } else { |
ae531b94 PB |
204 | addr.mode = IEEE802154_ADDR_SHORT; |
205 | addr.short_addr = nla_get_shortaddr( | |
78fe738d DES |
206 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
207 | } | |
ae531b94 PB |
208 | addr.pan_id = nla_get_shortaddr( |
209 | info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
78fe738d DES |
210 | |
211 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
212 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
213 | else | |
214 | page = 0; | |
215 | ||
216 | ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr, | |
217 | nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]), | |
218 | page, | |
219 | nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY])); | |
220 | ||
56aa091d | 221 | out: |
78fe738d DES |
222 | dev_put(dev); |
223 | return ret; | |
224 | } | |
225 | ||
1c582d91 | 226 | int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
227 | { |
228 | struct net_device *dev; | |
ae531b94 | 229 | struct ieee802154_addr addr; |
56aa091d | 230 | int ret = -EOPNOTSUPP; |
78fe738d DES |
231 | |
232 | if (!info->attrs[IEEE802154_ATTR_STATUS] || | |
233 | !info->attrs[IEEE802154_ATTR_DEST_HW_ADDR] || | |
234 | !info->attrs[IEEE802154_ATTR_DEST_SHORT_ADDR]) | |
235 | return -EINVAL; | |
236 | ||
237 | dev = ieee802154_nl_get_dev(info); | |
238 | if (!dev) | |
239 | return -ENODEV; | |
56aa091d WA |
240 | if (!ieee802154_mlme_ops(dev)->assoc_resp) |
241 | goto out; | |
78fe738d | 242 | |
ae531b94 PB |
243 | addr.mode = IEEE802154_ADDR_LONG; |
244 | addr.extended_addr = nla_get_hwaddr( | |
245 | info->attrs[IEEE802154_ATTR_DEST_HW_ADDR]); | |
c947f7e1 AA |
246 | rtnl_lock(); |
247 | addr.pan_id = dev->ieee802154_ptr->pan_id; | |
248 | rtnl_unlock(); | |
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 | } | |
c947f7e1 AA |
285 | rtnl_lock(); |
286 | addr.pan_id = dev->ieee802154_ptr->pan_id; | |
287 | rtnl_unlock(); | |
78fe738d DES |
288 | |
289 | ret = ieee802154_mlme_ops(dev)->disassoc_req(dev, &addr, | |
290 | nla_get_u8(info->attrs[IEEE802154_ATTR_REASON])); | |
291 | ||
56aa091d | 292 | out: |
78fe738d DES |
293 | dev_put(dev); |
294 | return ret; | |
295 | } | |
296 | ||
4710d806 | 297 | /* PANid, channel, beacon_order = 15, superframe_order = 15, |
78fe738d DES |
298 | * PAN_coordinator, battery_life_extension = 0, |
299 | * coord_realignment = 0, security_enable = 0 | |
300 | */ | |
1c582d91 | 301 | int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
302 | { |
303 | struct net_device *dev; | |
ae531b94 | 304 | struct ieee802154_addr addr; |
78fe738d DES |
305 | |
306 | u8 channel, bcn_ord, sf_ord; | |
307 | u8 page; | |
308 | int pan_coord, blx, coord_realign; | |
8f499f99 | 309 | int ret = -EBUSY; |
78fe738d DES |
310 | |
311 | if (!info->attrs[IEEE802154_ATTR_COORD_PAN_ID] || | |
312 | !info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR] || | |
313 | !info->attrs[IEEE802154_ATTR_CHANNEL] || | |
314 | !info->attrs[IEEE802154_ATTR_BCN_ORD] || | |
315 | !info->attrs[IEEE802154_ATTR_SF_ORD] || | |
316 | !info->attrs[IEEE802154_ATTR_PAN_COORD] || | |
317 | !info->attrs[IEEE802154_ATTR_BAT_EXT] || | |
318 | !info->attrs[IEEE802154_ATTR_COORD_REALIGN] | |
319 | ) | |
320 | return -EINVAL; | |
321 | ||
322 | dev = ieee802154_nl_get_dev(info); | |
323 | if (!dev) | |
324 | return -ENODEV; | |
8f499f99 AA |
325 | |
326 | if (netif_running(dev)) | |
56aa091d | 327 | goto out; |
78fe738d | 328 | |
8f499f99 AA |
329 | if (!ieee802154_mlme_ops(dev)->start_req) { |
330 | ret = -EOPNOTSUPP; | |
331 | goto out; | |
332 | } | |
333 | ||
ae531b94 PB |
334 | addr.mode = IEEE802154_ADDR_SHORT; |
335 | addr.short_addr = nla_get_shortaddr( | |
78fe738d | 336 | info->attrs[IEEE802154_ATTR_COORD_SHORT_ADDR]); |
ae531b94 PB |
337 | addr.pan_id = nla_get_shortaddr( |
338 | info->attrs[IEEE802154_ATTR_COORD_PAN_ID]); | |
78fe738d DES |
339 | |
340 | channel = nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]); | |
341 | bcn_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_BCN_ORD]); | |
342 | sf_ord = nla_get_u8(info->attrs[IEEE802154_ATTR_SF_ORD]); | |
343 | pan_coord = nla_get_u8(info->attrs[IEEE802154_ATTR_PAN_COORD]); | |
344 | blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]); | |
345 | coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]); | |
346 | ||
347 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
348 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
349 | else | |
350 | page = 0; | |
351 | ||
ae531b94 | 352 | if (addr.short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST)) { |
78fe738d DES |
353 | ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS); |
354 | dev_put(dev); | |
355 | return -EINVAL; | |
356 | } | |
357 | ||
7bea1ea7 | 358 | rtnl_lock(); |
78fe738d DES |
359 | ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page, |
360 | bcn_ord, sf_ord, pan_coord, blx, coord_realign); | |
7bea1ea7 | 361 | rtnl_unlock(); |
78fe738d | 362 | |
9f3295b9 AA |
363 | /* FIXME: add validation for unused parameters to be sane |
364 | * for SoftMAC | |
365 | */ | |
366 | ieee802154_nl_start_confirm(dev, IEEE802154_SUCCESS); | |
367 | ||
56aa091d | 368 | out: |
78fe738d DES |
369 | dev_put(dev); |
370 | return ret; | |
371 | } | |
372 | ||
1c582d91 | 373 | int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
374 | { |
375 | struct net_device *dev; | |
56aa091d | 376 | int ret = -EOPNOTSUPP; |
78fe738d DES |
377 | u8 type; |
378 | u32 channels; | |
379 | u8 duration; | |
380 | u8 page; | |
381 | ||
382 | if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] || | |
383 | !info->attrs[IEEE802154_ATTR_CHANNELS] || | |
384 | !info->attrs[IEEE802154_ATTR_DURATION]) | |
385 | return -EINVAL; | |
386 | ||
387 | dev = ieee802154_nl_get_dev(info); | |
388 | if (!dev) | |
389 | return -ENODEV; | |
56aa091d WA |
390 | if (!ieee802154_mlme_ops(dev)->scan_req) |
391 | goto out; | |
78fe738d DES |
392 | |
393 | type = nla_get_u8(info->attrs[IEEE802154_ATTR_SCAN_TYPE]); | |
394 | channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]); | |
395 | duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]); | |
396 | ||
397 | if (info->attrs[IEEE802154_ATTR_PAGE]) | |
398 | page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]); | |
399 | else | |
400 | page = 0; | |
401 | ||
4710d806 VB |
402 | ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, |
403 | page, duration); | |
78fe738d | 404 | |
56aa091d | 405 | out: |
78fe738d DES |
406 | dev_put(dev); |
407 | return ret; | |
408 | } | |
409 | ||
1c582d91 | 410 | int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info) |
78fe738d DES |
411 | { |
412 | /* Request for interface name, index, type, IEEE address, | |
4710d806 VB |
413 | * PAN Id, short address |
414 | */ | |
78fe738d DES |
415 | struct sk_buff *msg; |
416 | struct net_device *dev = NULL; | |
417 | int rc = -ENOBUFS; | |
418 | ||
419 | pr_debug("%s\n", __func__); | |
420 | ||
421 | dev = ieee802154_nl_get_dev(info); | |
422 | if (!dev) | |
423 | return -ENODEV; | |
424 | ||
58050fce | 425 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
78fe738d DES |
426 | if (!msg) |
427 | goto out_dev; | |
428 | ||
15e47304 | 429 | rc = ieee802154_nl_fill_iface(msg, info->snd_portid, info->snd_seq, |
4710d806 | 430 | 0, dev); |
78fe738d DES |
431 | if (rc < 0) |
432 | goto out_free; | |
433 | ||
434 | dev_put(dev); | |
435 | ||
436 | return genlmsg_reply(msg, info); | |
437 | out_free: | |
438 | nlmsg_free(msg); | |
439 | out_dev: | |
440 | dev_put(dev); | |
441 | return rc; | |
78fe738d DES |
442 | } |
443 | ||
1c582d91 | 444 | int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb) |
78fe738d DES |
445 | { |
446 | struct net *net = sock_net(skb->sk); | |
447 | struct net_device *dev; | |
448 | int idx; | |
449 | int s_idx = cb->args[0]; | |
450 | ||
451 | pr_debug("%s\n", __func__); | |
452 | ||
453 | idx = 0; | |
454 | for_each_netdev(net, dev) { | |
01c8d2bb | 455 | if (idx < s_idx || dev->type != ARPHRD_IEEE802154) |
78fe738d DES |
456 | goto cont; |
457 | ||
15e47304 | 458 | if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).portid, |
4710d806 VB |
459 | cb->nlh->nlmsg_seq, |
460 | NLM_F_MULTI, dev) < 0) | |
78fe738d DES |
461 | break; |
462 | cont: | |
463 | idx++; | |
464 | } | |
465 | cb->args[0] = idx; | |
466 | ||
467 | return skb->len; | |
468 | } | |
e462ded6 PB |
469 | |
470 | int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info) | |
471 | { | |
472 | struct net_device *dev = NULL; | |
473 | struct ieee802154_mlme_ops *ops; | |
474 | struct ieee802154_mac_params params; | |
475 | struct wpan_phy *phy; | |
476 | int rc = -EINVAL; | |
477 | ||
478 | pr_debug("%s\n", __func__); | |
479 | ||
480 | dev = ieee802154_nl_get_dev(info); | |
481 | if (!dev) | |
482 | return -ENODEV; | |
483 | ||
484 | ops = ieee802154_mlme_ops(dev); | |
485 | ||
486 | if (!ops->get_mac_params || !ops->set_mac_params) { | |
487 | rc = -EOPNOTSUPP; | |
488 | goto out; | |
489 | } | |
490 | ||
491 | if (netif_running(dev)) { | |
492 | rc = -EBUSY; | |
493 | goto out; | |
494 | } | |
495 | ||
496 | if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] && | |
497 | !info->attrs[IEEE802154_ATTR_CCA_MODE] && | |
498 | !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] && | |
499 | !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] && | |
500 | !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] && | |
501 | !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] && | |
502 | !info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) | |
503 | goto out; | |
504 | ||
bd28a11f AA |
505 | phy = dev->ieee802154_ptr->wpan_phy; |
506 | get_device(&phy->dev); | |
e462ded6 | 507 | |
7bea1ea7 | 508 | rtnl_lock(); |
e462ded6 PB |
509 | ops->get_mac_params(dev, ¶ms); |
510 | ||
511 | if (info->attrs[IEEE802154_ATTR_TXPOWER]) | |
e2eb173a | 512 | params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]) * 100; |
e462ded6 PB |
513 | |
514 | if (info->attrs[IEEE802154_ATTR_LBT_ENABLED]) | |
515 | params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]); | |
516 | ||
517 | if (info->attrs[IEEE802154_ATTR_CCA_MODE]) | |
7fe9a388 | 518 | params.cca.mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]); |
e462ded6 PB |
519 | |
520 | if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) | |
32b23550 | 521 | params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) * 100; |
e462ded6 PB |
522 | |
523 | if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES]) | |
524 | params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]); | |
525 | ||
526 | if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]) | |
527 | params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]); | |
528 | ||
529 | if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]) | |
530 | params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]); | |
531 | ||
532 | if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) | |
533 | params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]); | |
534 | ||
535 | rc = ops->set_mac_params(dev, ¶ms); | |
7bea1ea7 | 536 | rtnl_unlock(); |
e462ded6 PB |
537 | |
538 | wpan_phy_put(phy); | |
539 | dev_put(dev); | |
e462ded6 | 540 | |
a543c598 AA |
541 | return 0; |
542 | ||
e462ded6 PB |
543 | out: |
544 | dev_put(dev); | |
545 | return rc; | |
546 | } | |
3e9c156e | 547 | |
3e9c156e PB |
548 | static int |
549 | ieee802154_llsec_parse_key_id(struct genl_info *info, | |
550 | struct ieee802154_llsec_key_id *desc) | |
551 | { | |
552 | memset(desc, 0, sizeof(*desc)); | |
553 | ||
554 | if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) | |
555 | return -EINVAL; | |
556 | ||
557 | desc->mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]); | |
558 | ||
559 | if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) { | |
560 | if (!info->attrs[IEEE802154_ATTR_PAN_ID] && | |
561 | !(info->attrs[IEEE802154_ATTR_SHORT_ADDR] || | |
562 | info->attrs[IEEE802154_ATTR_HW_ADDR])) | |
563 | return -EINVAL; | |
564 | ||
565 | desc->device_addr.pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); | |
566 | ||
567 | if (info->attrs[IEEE802154_ATTR_SHORT_ADDR]) { | |
568 | desc->device_addr.mode = IEEE802154_ADDR_SHORT; | |
569 | desc->device_addr.short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]); | |
570 | } else { | |
571 | desc->device_addr.mode = IEEE802154_ADDR_LONG; | |
572 | desc->device_addr.extended_addr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
573 | } | |
574 | } | |
575 | ||
576 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && | |
577 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]) | |
578 | return -EINVAL; | |
579 | ||
580 | if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && | |
581 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]) | |
582 | return -EINVAL; | |
583 | ||
584 | if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && | |
585 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]) | |
586 | return -EINVAL; | |
587 | ||
588 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT) | |
589 | desc->id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_ID]); | |
590 | ||
591 | switch (desc->mode) { | |
592 | case IEEE802154_SCF_KEY_SHORT_INDEX: | |
593 | { | |
594 | u32 source = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT]); | |
4710d806 | 595 | |
3e9c156e PB |
596 | desc->short_source = cpu_to_le32(source); |
597 | break; | |
598 | } | |
599 | case IEEE802154_SCF_KEY_HW_INDEX: | |
600 | desc->extended_source = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED]); | |
601 | break; | |
602 | } | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int | |
608 | ieee802154_llsec_fill_key_id(struct sk_buff *msg, | |
609 | const struct ieee802154_llsec_key_id *desc) | |
610 | { | |
611 | if (nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_MODE, desc->mode)) | |
612 | return -EMSGSIZE; | |
613 | ||
614 | if (desc->mode == IEEE802154_SCF_KEY_IMPLICIT) { | |
615 | if (nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, | |
616 | desc->device_addr.pan_id)) | |
617 | return -EMSGSIZE; | |
618 | ||
619 | if (desc->device_addr.mode == IEEE802154_ADDR_SHORT && | |
620 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, | |
621 | desc->device_addr.short_addr)) | |
622 | return -EMSGSIZE; | |
623 | ||
624 | if (desc->device_addr.mode == IEEE802154_ADDR_LONG && | |
625 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, | |
626 | desc->device_addr.extended_addr)) | |
627 | return -EMSGSIZE; | |
628 | } | |
629 | ||
630 | if (desc->mode != IEEE802154_SCF_KEY_IMPLICIT && | |
631 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_ID, desc->id)) | |
632 | return -EMSGSIZE; | |
633 | ||
634 | if (desc->mode == IEEE802154_SCF_KEY_SHORT_INDEX && | |
635 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_SHORT, | |
636 | le32_to_cpu(desc->short_source))) | |
637 | return -EMSGSIZE; | |
638 | ||
639 | if (desc->mode == IEEE802154_SCF_KEY_HW_INDEX && | |
640 | nla_put_hwaddr(msg, IEEE802154_ATTR_LLSEC_KEY_SOURCE_EXTENDED, | |
641 | desc->extended_source)) | |
642 | return -EMSGSIZE; | |
643 | ||
644 | return 0; | |
645 | } | |
646 | ||
647 | int ieee802154_llsec_getparams(struct sk_buff *skb, struct genl_info *info) | |
648 | { | |
649 | struct sk_buff *msg; | |
650 | struct net_device *dev = NULL; | |
651 | int rc = -ENOBUFS; | |
652 | struct ieee802154_mlme_ops *ops; | |
653 | void *hdr; | |
654 | struct ieee802154_llsec_params params; | |
655 | ||
656 | pr_debug("%s\n", __func__); | |
657 | ||
658 | dev = ieee802154_nl_get_dev(info); | |
659 | if (!dev) | |
660 | return -ENODEV; | |
661 | ||
662 | ops = ieee802154_mlme_ops(dev); | |
b3f7a7b4 DC |
663 | if (!ops->llsec) { |
664 | rc = -EOPNOTSUPP; | |
665 | goto out_dev; | |
666 | } | |
3e9c156e PB |
667 | |
668 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
669 | if (!msg) | |
670 | goto out_dev; | |
671 | ||
672 | hdr = genlmsg_put(msg, 0, info->snd_seq, &nl802154_family, 0, | |
4710d806 | 673 | IEEE802154_LLSEC_GETPARAMS); |
3e9c156e PB |
674 | if (!hdr) |
675 | goto out_free; | |
676 | ||
677 | rc = ops->llsec->get_params(dev, ¶ms); | |
678 | if (rc < 0) | |
679 | goto out_free; | |
680 | ||
681 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
682 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
683 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_ENABLED, params.enabled) || | |
684 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVEL, params.out_level) || | |
685 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, | |
686 | be32_to_cpu(params.frame_counter)) || | |
687 | ieee802154_llsec_fill_key_id(msg, ¶ms.out_key)) | |
688 | goto out_free; | |
689 | ||
690 | dev_put(dev); | |
691 | ||
692 | return ieee802154_nl_reply(msg, info); | |
693 | out_free: | |
694 | nlmsg_free(msg); | |
695 | out_dev: | |
696 | dev_put(dev); | |
697 | return rc; | |
698 | } | |
699 | ||
700 | int ieee802154_llsec_setparams(struct sk_buff *skb, struct genl_info *info) | |
701 | { | |
702 | struct net_device *dev = NULL; | |
703 | int rc = -EINVAL; | |
704 | struct ieee802154_mlme_ops *ops; | |
705 | struct ieee802154_llsec_params params; | |
706 | int changed = 0; | |
707 | ||
708 | pr_debug("%s\n", __func__); | |
709 | ||
710 | dev = ieee802154_nl_get_dev(info); | |
711 | if (!dev) | |
712 | return -ENODEV; | |
713 | ||
714 | if (!info->attrs[IEEE802154_ATTR_LLSEC_ENABLED] && | |
715 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE] && | |
716 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) | |
717 | goto out; | |
718 | ||
719 | ops = ieee802154_mlme_ops(dev); | |
720 | if (!ops->llsec) { | |
721 | rc = -EOPNOTSUPP; | |
722 | goto out; | |
723 | } | |
724 | ||
725 | if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL] && | |
726 | nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) > 7) | |
727 | goto out; | |
728 | ||
729 | if (info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]) { | |
730 | params.enabled = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_ENABLED]); | |
731 | changed |= IEEE802154_LLSEC_PARAM_ENABLED; | |
732 | } | |
733 | ||
734 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_MODE]) { | |
735 | if (ieee802154_llsec_parse_key_id(info, ¶ms.out_key)) | |
736 | goto out; | |
737 | ||
738 | changed |= IEEE802154_LLSEC_PARAM_OUT_KEY; | |
739 | } | |
740 | ||
741 | if (info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]) { | |
742 | params.out_level = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVEL]); | |
743 | changed |= IEEE802154_LLSEC_PARAM_OUT_LEVEL; | |
744 | } | |
745 | ||
746 | if (info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]) { | |
747 | u32 fc = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
748 | ||
749 | params.frame_counter = cpu_to_be32(fc); | |
750 | changed |= IEEE802154_LLSEC_PARAM_FRAME_COUNTER; | |
751 | } | |
752 | ||
753 | rc = ops->llsec->set_params(dev, ¶ms, changed); | |
754 | ||
755 | dev_put(dev); | |
756 | ||
757 | return rc; | |
758 | out: | |
759 | dev_put(dev); | |
760 | return rc; | |
761 | } | |
762 | ||
3e9c156e PB |
763 | struct llsec_dump_data { |
764 | struct sk_buff *skb; | |
765 | int s_idx, s_idx2; | |
766 | int portid; | |
767 | int nlmsg_seq; | |
768 | struct net_device *dev; | |
769 | struct ieee802154_mlme_ops *ops; | |
770 | struct ieee802154_llsec_table *table; | |
771 | }; | |
772 | ||
773 | static int | |
774 | ieee802154_llsec_dump_table(struct sk_buff *skb, struct netlink_callback *cb, | |
4710d806 | 775 | int (*step)(struct llsec_dump_data *)) |
3e9c156e PB |
776 | { |
777 | struct net *net = sock_net(skb->sk); | |
778 | struct net_device *dev; | |
779 | struct llsec_dump_data data; | |
780 | int idx = 0; | |
781 | int first_dev = cb->args[0]; | |
782 | int rc; | |
783 | ||
784 | for_each_netdev(net, dev) { | |
01c8d2bb | 785 | if (idx < first_dev || dev->type != ARPHRD_IEEE802154) |
3e9c156e PB |
786 | goto skip; |
787 | ||
788 | data.ops = ieee802154_mlme_ops(dev); | |
789 | if (!data.ops->llsec) | |
790 | goto skip; | |
791 | ||
792 | data.skb = skb; | |
793 | data.s_idx = cb->args[1]; | |
794 | data.s_idx2 = cb->args[2]; | |
795 | data.dev = dev; | |
796 | data.portid = NETLINK_CB(cb->skb).portid; | |
797 | data.nlmsg_seq = cb->nlh->nlmsg_seq; | |
798 | ||
799 | data.ops->llsec->lock_table(dev); | |
800 | data.ops->llsec->get_table(data.dev, &data.table); | |
801 | rc = step(&data); | |
802 | data.ops->llsec->unlock_table(dev); | |
803 | ||
804 | if (rc < 0) | |
805 | break; | |
806 | ||
807 | skip: | |
808 | idx++; | |
809 | } | |
810 | cb->args[0] = idx; | |
811 | ||
812 | return skb->len; | |
813 | } | |
814 | ||
815 | static int | |
816 | ieee802154_nl_llsec_change(struct sk_buff *skb, struct genl_info *info, | |
817 | int (*fn)(struct net_device*, struct genl_info*)) | |
818 | { | |
819 | struct net_device *dev = NULL; | |
820 | int rc = -EINVAL; | |
821 | ||
822 | dev = ieee802154_nl_get_dev(info); | |
823 | if (!dev) | |
824 | return -ENODEV; | |
825 | ||
826 | if (!ieee802154_mlme_ops(dev)->llsec) | |
827 | rc = -EOPNOTSUPP; | |
828 | else | |
829 | rc = fn(dev, info); | |
830 | ||
831 | dev_put(dev); | |
832 | return rc; | |
833 | } | |
834 | ||
3e9c156e PB |
835 | static int |
836 | ieee802154_llsec_parse_key(struct genl_info *info, | |
837 | struct ieee802154_llsec_key *key) | |
838 | { | |
839 | u8 frames; | |
840 | u32 commands[256 / 32]; | |
841 | ||
842 | memset(key, 0, sizeof(*key)); | |
843 | ||
844 | if (!info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES] || | |
845 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES]) | |
846 | return -EINVAL; | |
847 | ||
848 | frames = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES]); | |
849 | if ((frames & BIT(IEEE802154_FC_TYPE_MAC_CMD)) && | |
850 | !info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) | |
851 | return -EINVAL; | |
852 | ||
853 | if (info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS]) { | |
854 | nla_memcpy(commands, | |
855 | info->attrs[IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS], | |
856 | 256 / 8); | |
857 | ||
858 | if (commands[0] || commands[1] || commands[2] || commands[3] || | |
859 | commands[4] || commands[5] || commands[6] || | |
860 | commands[7] >= BIT(IEEE802154_CMD_GTS_REQ + 1)) | |
861 | return -EINVAL; | |
862 | ||
863 | key->cmd_frame_ids = commands[7]; | |
864 | } | |
865 | ||
866 | key->frame_types = frames; | |
867 | ||
868 | nla_memcpy(key->key, info->attrs[IEEE802154_ATTR_LLSEC_KEY_BYTES], | |
869 | IEEE802154_LLSEC_KEY_SIZE); | |
870 | ||
871 | return 0; | |
872 | } | |
873 | ||
874 | static int llsec_add_key(struct net_device *dev, struct genl_info *info) | |
875 | { | |
876 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
877 | struct ieee802154_llsec_key key; | |
878 | struct ieee802154_llsec_key_id id; | |
879 | ||
880 | if (ieee802154_llsec_parse_key(info, &key) || | |
881 | ieee802154_llsec_parse_key_id(info, &id)) | |
882 | return -EINVAL; | |
883 | ||
884 | return ops->llsec->add_key(dev, &id, &key); | |
885 | } | |
886 | ||
887 | int ieee802154_llsec_add_key(struct sk_buff *skb, struct genl_info *info) | |
888 | { | |
889 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
890 | (NLM_F_CREATE | NLM_F_EXCL)) | |
891 | return -EINVAL; | |
892 | ||
893 | return ieee802154_nl_llsec_change(skb, info, llsec_add_key); | |
894 | } | |
895 | ||
896 | static int llsec_remove_key(struct net_device *dev, struct genl_info *info) | |
897 | { | |
898 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
899 | struct ieee802154_llsec_key_id id; | |
900 | ||
901 | if (ieee802154_llsec_parse_key_id(info, &id)) | |
902 | return -EINVAL; | |
903 | ||
904 | return ops->llsec->del_key(dev, &id); | |
905 | } | |
906 | ||
907 | int ieee802154_llsec_del_key(struct sk_buff *skb, struct genl_info *info) | |
908 | { | |
909 | return ieee802154_nl_llsec_change(skb, info, llsec_remove_key); | |
910 | } | |
911 | ||
912 | static int | |
913 | ieee802154_nl_fill_key(struct sk_buff *msg, u32 portid, u32 seq, | |
914 | const struct ieee802154_llsec_key_entry *key, | |
915 | const struct net_device *dev) | |
916 | { | |
917 | void *hdr; | |
918 | u32 commands[256 / 32]; | |
919 | ||
920 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
921 | IEEE802154_LLSEC_LIST_KEY); | |
922 | if (!hdr) | |
923 | goto out; | |
924 | ||
925 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
926 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
927 | ieee802154_llsec_fill_key_id(msg, &key->id) || | |
928 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_FRAME_TYPES, | |
929 | key->key->frame_types)) | |
930 | goto nla_put_failure; | |
931 | ||
932 | if (key->key->frame_types & BIT(IEEE802154_FC_TYPE_MAC_CMD)) { | |
933 | memset(commands, 0, sizeof(commands)); | |
934 | commands[7] = key->key->cmd_frame_ids; | |
935 | if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_USAGE_COMMANDS, | |
936 | sizeof(commands), commands)) | |
937 | goto nla_put_failure; | |
938 | } | |
939 | ||
940 | if (nla_put(msg, IEEE802154_ATTR_LLSEC_KEY_BYTES, | |
941 | IEEE802154_LLSEC_KEY_SIZE, key->key->key)) | |
942 | goto nla_put_failure; | |
943 | ||
944 | genlmsg_end(msg, hdr); | |
945 | return 0; | |
946 | ||
947 | nla_put_failure: | |
948 | genlmsg_cancel(msg, hdr); | |
949 | out: | |
950 | return -EMSGSIZE; | |
951 | } | |
952 | ||
953 | static int llsec_iter_keys(struct llsec_dump_data *data) | |
954 | { | |
955 | struct ieee802154_llsec_key_entry *pos; | |
956 | int rc = 0, idx = 0; | |
957 | ||
958 | list_for_each_entry(pos, &data->table->keys, list) { | |
959 | if (idx++ < data->s_idx) | |
960 | continue; | |
961 | ||
962 | if (ieee802154_nl_fill_key(data->skb, data->portid, | |
963 | data->nlmsg_seq, pos, data->dev)) { | |
964 | rc = -EMSGSIZE; | |
965 | break; | |
966 | } | |
967 | ||
968 | data->s_idx++; | |
969 | } | |
970 | ||
971 | return rc; | |
972 | } | |
973 | ||
974 | int ieee802154_llsec_dump_keys(struct sk_buff *skb, struct netlink_callback *cb) | |
975 | { | |
976 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_keys); | |
977 | } | |
978 | ||
3e9c156e PB |
979 | static int |
980 | llsec_parse_dev(struct genl_info *info, | |
981 | struct ieee802154_llsec_device *dev) | |
982 | { | |
983 | memset(dev, 0, sizeof(*dev)); | |
984 | ||
985 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || | |
986 | !info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
987 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE] || | |
988 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE] || | |
989 | (!!info->attrs[IEEE802154_ATTR_PAN_ID] != | |
990 | !!info->attrs[IEEE802154_ATTR_SHORT_ADDR])) | |
991 | return -EINVAL; | |
992 | ||
993 | if (info->attrs[IEEE802154_ATTR_PAN_ID]) { | |
994 | dev->pan_id = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_PAN_ID]); | |
995 | dev->short_addr = nla_get_shortaddr(info->attrs[IEEE802154_ATTR_SHORT_ADDR]); | |
996 | } else { | |
997 | dev->short_addr = cpu_to_le16(IEEE802154_ADDR_UNDEF); | |
998 | } | |
999 | ||
1000 | dev->hwaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1001 | dev->frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
1002 | dev->seclevel_exempt = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); | |
1003 | dev->key_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_KEY_MODE]); | |
1004 | ||
1005 | if (dev->key_mode >= __IEEE802154_LLSEC_DEVKEY_MAX) | |
1006 | return -EINVAL; | |
1007 | ||
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | static int llsec_add_dev(struct net_device *dev, struct genl_info *info) | |
1012 | { | |
1013 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1014 | struct ieee802154_llsec_device desc; | |
1015 | ||
1016 | if (llsec_parse_dev(info, &desc)) | |
1017 | return -EINVAL; | |
1018 | ||
1019 | return ops->llsec->add_dev(dev, &desc); | |
1020 | } | |
1021 | ||
1022 | int ieee802154_llsec_add_dev(struct sk_buff *skb, struct genl_info *info) | |
1023 | { | |
1024 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1025 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1026 | return -EINVAL; | |
1027 | ||
1028 | return ieee802154_nl_llsec_change(skb, info, llsec_add_dev); | |
1029 | } | |
1030 | ||
1031 | static int llsec_del_dev(struct net_device *dev, struct genl_info *info) | |
1032 | { | |
1033 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1034 | __le64 devaddr; | |
1035 | ||
1036 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR]) | |
1037 | return -EINVAL; | |
1038 | ||
1039 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1040 | ||
1041 | return ops->llsec->del_dev(dev, devaddr); | |
1042 | } | |
1043 | ||
1044 | int ieee802154_llsec_del_dev(struct sk_buff *skb, struct genl_info *info) | |
1045 | { | |
1046 | return ieee802154_nl_llsec_change(skb, info, llsec_del_dev); | |
1047 | } | |
1048 | ||
1049 | static int | |
1050 | ieee802154_nl_fill_dev(struct sk_buff *msg, u32 portid, u32 seq, | |
1051 | const struct ieee802154_llsec_device *desc, | |
1052 | const struct net_device *dev) | |
1053 | { | |
1054 | void *hdr; | |
1055 | ||
1056 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1057 | IEEE802154_LLSEC_LIST_DEV); | |
1058 | if (!hdr) | |
1059 | goto out; | |
1060 | ||
1061 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1062 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
1063 | nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, desc->pan_id) || | |
1064 | nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, | |
1065 | desc->short_addr) || | |
1066 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, desc->hwaddr) || | |
1067 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, | |
1068 | desc->frame_counter) || | |
1069 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, | |
1070 | desc->seclevel_exempt) || | |
1071 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_KEY_MODE, desc->key_mode)) | |
1072 | goto nla_put_failure; | |
1073 | ||
1074 | genlmsg_end(msg, hdr); | |
1075 | return 0; | |
1076 | ||
1077 | nla_put_failure: | |
1078 | genlmsg_cancel(msg, hdr); | |
1079 | out: | |
1080 | return -EMSGSIZE; | |
1081 | } | |
1082 | ||
1083 | static int llsec_iter_devs(struct llsec_dump_data *data) | |
1084 | { | |
1085 | struct ieee802154_llsec_device *pos; | |
1086 | int rc = 0, idx = 0; | |
1087 | ||
1088 | list_for_each_entry(pos, &data->table->devices, list) { | |
1089 | if (idx++ < data->s_idx) | |
1090 | continue; | |
1091 | ||
1092 | if (ieee802154_nl_fill_dev(data->skb, data->portid, | |
1093 | data->nlmsg_seq, pos, data->dev)) { | |
1094 | rc = -EMSGSIZE; | |
1095 | break; | |
1096 | } | |
1097 | ||
1098 | data->s_idx++; | |
1099 | } | |
1100 | ||
1101 | return rc; | |
1102 | } | |
1103 | ||
1104 | int ieee802154_llsec_dump_devs(struct sk_buff *skb, struct netlink_callback *cb) | |
1105 | { | |
1106 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devs); | |
1107 | } | |
1108 | ||
3e9c156e PB |
1109 | static int llsec_add_devkey(struct net_device *dev, struct genl_info *info) |
1110 | { | |
1111 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1112 | struct ieee802154_llsec_device_key key; | |
1113 | __le64 devaddr; | |
1114 | ||
1115 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER] || | |
1116 | !info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
1117 | ieee802154_llsec_parse_key_id(info, &key.key_id)) | |
1118 | return -EINVAL; | |
1119 | ||
1120 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1121 | key.frame_counter = nla_get_u32(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_COUNTER]); | |
1122 | ||
1123 | return ops->llsec->add_devkey(dev, devaddr, &key); | |
1124 | } | |
1125 | ||
1126 | int ieee802154_llsec_add_devkey(struct sk_buff *skb, struct genl_info *info) | |
1127 | { | |
1128 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1129 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1130 | return -EINVAL; | |
1131 | ||
1132 | return ieee802154_nl_llsec_change(skb, info, llsec_add_devkey); | |
1133 | } | |
1134 | ||
1135 | static int llsec_del_devkey(struct net_device *dev, struct genl_info *info) | |
1136 | { | |
1137 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1138 | struct ieee802154_llsec_device_key key; | |
1139 | __le64 devaddr; | |
1140 | ||
1141 | if (!info->attrs[IEEE802154_ATTR_HW_ADDR] || | |
1142 | ieee802154_llsec_parse_key_id(info, &key.key_id)) | |
1143 | return -EINVAL; | |
1144 | ||
1145 | devaddr = nla_get_hwaddr(info->attrs[IEEE802154_ATTR_HW_ADDR]); | |
1146 | ||
1147 | return ops->llsec->del_devkey(dev, devaddr, &key); | |
1148 | } | |
1149 | ||
1150 | int ieee802154_llsec_del_devkey(struct sk_buff *skb, struct genl_info *info) | |
1151 | { | |
1152 | return ieee802154_nl_llsec_change(skb, info, llsec_del_devkey); | |
1153 | } | |
1154 | ||
1155 | static int | |
1156 | ieee802154_nl_fill_devkey(struct sk_buff *msg, u32 portid, u32 seq, | |
1157 | __le64 devaddr, | |
1158 | const struct ieee802154_llsec_device_key *devkey, | |
1159 | const struct net_device *dev) | |
1160 | { | |
1161 | void *hdr; | |
1162 | ||
1163 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1164 | IEEE802154_LLSEC_LIST_DEVKEY); | |
1165 | if (!hdr) | |
1166 | goto out; | |
1167 | ||
1168 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1169 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
1170 | nla_put_hwaddr(msg, IEEE802154_ATTR_HW_ADDR, devaddr) || | |
1171 | nla_put_u32(msg, IEEE802154_ATTR_LLSEC_FRAME_COUNTER, | |
1172 | devkey->frame_counter) || | |
1173 | ieee802154_llsec_fill_key_id(msg, &devkey->key_id)) | |
1174 | goto nla_put_failure; | |
1175 | ||
1176 | genlmsg_end(msg, hdr); | |
1177 | return 0; | |
1178 | ||
1179 | nla_put_failure: | |
1180 | genlmsg_cancel(msg, hdr); | |
1181 | out: | |
1182 | return -EMSGSIZE; | |
1183 | } | |
1184 | ||
1185 | static int llsec_iter_devkeys(struct llsec_dump_data *data) | |
1186 | { | |
1187 | struct ieee802154_llsec_device *dpos; | |
1188 | struct ieee802154_llsec_device_key *kpos; | |
1189 | int rc = 0, idx = 0, idx2; | |
1190 | ||
1191 | list_for_each_entry(dpos, &data->table->devices, list) { | |
1192 | if (idx++ < data->s_idx) | |
1193 | continue; | |
1194 | ||
1195 | idx2 = 0; | |
1196 | ||
1197 | list_for_each_entry(kpos, &dpos->keys, list) { | |
1198 | if (idx2++ < data->s_idx2) | |
1199 | continue; | |
1200 | ||
1201 | if (ieee802154_nl_fill_devkey(data->skb, data->portid, | |
1202 | data->nlmsg_seq, | |
1203 | dpos->hwaddr, kpos, | |
1204 | data->dev)) { | |
1205 | return rc = -EMSGSIZE; | |
1206 | } | |
1207 | ||
1208 | data->s_idx2++; | |
1209 | } | |
1210 | ||
1211 | data->s_idx++; | |
1212 | } | |
1213 | ||
1214 | return rc; | |
1215 | } | |
1216 | ||
1217 | int ieee802154_llsec_dump_devkeys(struct sk_buff *skb, | |
1218 | struct netlink_callback *cb) | |
1219 | { | |
1220 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_devkeys); | |
1221 | } | |
1222 | ||
3e9c156e PB |
1223 | static int |
1224 | llsec_parse_seclevel(struct genl_info *info, | |
1225 | struct ieee802154_llsec_seclevel *sl) | |
1226 | { | |
1227 | memset(sl, 0, sizeof(*sl)); | |
1228 | ||
1229 | if (!info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE] || | |
1230 | !info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS] || | |
1231 | !info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]) | |
1232 | return -EINVAL; | |
1233 | ||
1234 | sl->frame_type = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_FRAME_TYPE]); | |
1235 | if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD) { | |
1236 | if (!info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]) | |
1237 | return -EINVAL; | |
1238 | ||
1239 | sl->cmd_frame_id = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_CMD_FRAME_ID]); | |
1240 | } | |
1241 | ||
1242 | sl->sec_levels = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_SECLEVELS]); | |
1243 | sl->device_override = nla_get_u8(info->attrs[IEEE802154_ATTR_LLSEC_DEV_OVERRIDE]); | |
1244 | ||
1245 | return 0; | |
1246 | } | |
1247 | ||
1248 | static int llsec_add_seclevel(struct net_device *dev, struct genl_info *info) | |
1249 | { | |
1250 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1251 | struct ieee802154_llsec_seclevel sl; | |
1252 | ||
1253 | if (llsec_parse_seclevel(info, &sl)) | |
1254 | return -EINVAL; | |
1255 | ||
1256 | return ops->llsec->add_seclevel(dev, &sl); | |
1257 | } | |
1258 | ||
1259 | int ieee802154_llsec_add_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1260 | { | |
1261 | if ((info->nlhdr->nlmsg_flags & (NLM_F_CREATE | NLM_F_EXCL)) != | |
1262 | (NLM_F_CREATE | NLM_F_EXCL)) | |
1263 | return -EINVAL; | |
1264 | ||
1265 | return ieee802154_nl_llsec_change(skb, info, llsec_add_seclevel); | |
1266 | } | |
1267 | ||
1268 | static int llsec_del_seclevel(struct net_device *dev, struct genl_info *info) | |
1269 | { | |
1270 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); | |
1271 | struct ieee802154_llsec_seclevel sl; | |
1272 | ||
1273 | if (llsec_parse_seclevel(info, &sl)) | |
1274 | return -EINVAL; | |
1275 | ||
1276 | return ops->llsec->del_seclevel(dev, &sl); | |
1277 | } | |
1278 | ||
1279 | int ieee802154_llsec_del_seclevel(struct sk_buff *skb, struct genl_info *info) | |
1280 | { | |
1281 | return ieee802154_nl_llsec_change(skb, info, llsec_del_seclevel); | |
1282 | } | |
1283 | ||
1284 | static int | |
1285 | ieee802154_nl_fill_seclevel(struct sk_buff *msg, u32 portid, u32 seq, | |
1286 | const struct ieee802154_llsec_seclevel *sl, | |
1287 | const struct net_device *dev) | |
1288 | { | |
1289 | void *hdr; | |
1290 | ||
1291 | hdr = genlmsg_put(msg, 0, seq, &nl802154_family, NLM_F_MULTI, | |
1292 | IEEE802154_LLSEC_LIST_SECLEVEL); | |
1293 | if (!hdr) | |
1294 | goto out; | |
1295 | ||
1296 | if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) || | |
1297 | nla_put_u32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex) || | |
1298 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_FRAME_TYPE, sl->frame_type) || | |
1299 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_SECLEVELS, sl->sec_levels) || | |
1300 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_DEV_OVERRIDE, | |
1301 | sl->device_override)) | |
1302 | goto nla_put_failure; | |
1303 | ||
1304 | if (sl->frame_type == IEEE802154_FC_TYPE_MAC_CMD && | |
1305 | nla_put_u8(msg, IEEE802154_ATTR_LLSEC_CMD_FRAME_ID, | |
1306 | sl->cmd_frame_id)) | |
1307 | goto nla_put_failure; | |
1308 | ||
1309 | genlmsg_end(msg, hdr); | |
1310 | return 0; | |
1311 | ||
1312 | nla_put_failure: | |
1313 | genlmsg_cancel(msg, hdr); | |
1314 | out: | |
1315 | return -EMSGSIZE; | |
1316 | } | |
1317 | ||
1318 | static int llsec_iter_seclevels(struct llsec_dump_data *data) | |
1319 | { | |
1320 | struct ieee802154_llsec_seclevel *pos; | |
1321 | int rc = 0, idx = 0; | |
1322 | ||
1323 | list_for_each_entry(pos, &data->table->security_levels, list) { | |
1324 | if (idx++ < data->s_idx) | |
1325 | continue; | |
1326 | ||
1327 | if (ieee802154_nl_fill_seclevel(data->skb, data->portid, | |
1328 | data->nlmsg_seq, pos, | |
1329 | data->dev)) { | |
1330 | rc = -EMSGSIZE; | |
1331 | break; | |
1332 | } | |
1333 | ||
1334 | data->s_idx++; | |
1335 | } | |
1336 | ||
1337 | return rc; | |
1338 | } | |
1339 | ||
1340 | int ieee802154_llsec_dump_seclevels(struct sk_buff *skb, | |
1341 | struct netlink_callback *cb) | |
1342 | { | |
1343 | return ieee802154_llsec_dump_table(skb, cb, llsec_iter_seclevels); | |
1344 | } |