Commit | Line | Data |
---|---|---|
32bad7e3 | 1 | /* |
2 | * Copyright 2007-2012 Siemens AG | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 | |
6 | * as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
32bad7e3 | 13 | * Written by: |
14 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | |
15 | * Sergey Lapin <slapin@ossfans.org> | |
16 | * Maxim Gorbachyov <maxim.gorbachev@siemens.com> | |
17 | * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> | |
18 | */ | |
19 | ||
20 | #include <linux/netdevice.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/if_arp.h> | |
4ca24aca | 23 | #include <linux/ieee802154.h> |
32bad7e3 | 24 | |
25 | #include <net/rtnetlink.h> | |
26 | #include <linux/nl802154.h> | |
32bad7e3 | 27 | #include <net/mac802154.h> |
28 | #include <net/ieee802154_netdev.h> | |
5ad60d36 | 29 | #include <net/cfg802154.h> |
32bad7e3 | 30 | |
0f1556bc | 31 | #include "ieee802154_i.h" |
59cb300f | 32 | #include "driver-ops.h" |
32bad7e3 | 33 | |
9b0bb4a8 PB |
34 | static int mac802154_wpan_update_llsec(struct net_device *dev) |
35 | { | |
59d19cd7 | 36 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
9b0bb4a8 PB |
37 | struct ieee802154_mlme_ops *ops = ieee802154_mlme_ops(dev); |
38 | int rc = 0; | |
39 | ||
40 | if (ops->llsec) { | |
41 | struct ieee802154_llsec_params params; | |
42 | int changed = 0; | |
43 | ||
036562f9 | 44 | params.pan_id = sdata->pan_id; |
9b0bb4a8 PB |
45 | changed |= IEEE802154_LLSEC_PARAM_PAN_ID; |
46 | ||
036562f9 | 47 | params.hwaddr = sdata->extended_addr; |
9b0bb4a8 PB |
48 | changed |= IEEE802154_LLSEC_PARAM_HWADDR; |
49 | ||
50 | rc = ops->llsec->set_params(dev, ¶ms, changed); | |
51 | } | |
52 | ||
53 | return rc; | |
54 | } | |
55 | ||
32bad7e3 | 56 | static int |
57 | mac802154_wpan_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
58 | { | |
59d19cd7 | 59 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
32bad7e3 | 60 | struct sockaddr_ieee802154 *sa = |
61 | (struct sockaddr_ieee802154 *)&ifr->ifr_addr; | |
62 | int err = -ENOIOCTLCMD; | |
63 | ||
036562f9 | 64 | spin_lock_bh(&sdata->mib_lock); |
32bad7e3 | 65 | |
66 | switch (cmd) { | |
67 | case SIOCGIFADDR: | |
b70ab2e8 PB |
68 | { |
69 | u16 pan_id, short_addr; | |
70 | ||
036562f9 AA |
71 | pan_id = le16_to_cpu(sdata->pan_id); |
72 | short_addr = le16_to_cpu(sdata->short_addr); | |
b70ab2e8 PB |
73 | if (pan_id == IEEE802154_PANID_BROADCAST || |
74 | short_addr == IEEE802154_ADDR_BROADCAST) { | |
32bad7e3 | 75 | err = -EADDRNOTAVAIL; |
76 | break; | |
77 | } | |
78 | ||
79 | sa->family = AF_IEEE802154; | |
80 | sa->addr.addr_type = IEEE802154_ADDR_SHORT; | |
b70ab2e8 PB |
81 | sa->addr.pan_id = pan_id; |
82 | sa->addr.short_addr = short_addr; | |
32bad7e3 | 83 | |
84 | err = 0; | |
85 | break; | |
b70ab2e8 | 86 | } |
32bad7e3 | 87 | case SIOCSIFADDR: |
88 | dev_warn(&dev->dev, | |
9b13494c | 89 | "Using DEBUGing ioctl SIOCSIFADDR isn't recommended!\n"); |
32bad7e3 | 90 | if (sa->family != AF_IEEE802154 || |
91 | sa->addr.addr_type != IEEE802154_ADDR_SHORT || | |
92 | sa->addr.pan_id == IEEE802154_PANID_BROADCAST || | |
93 | sa->addr.short_addr == IEEE802154_ADDR_BROADCAST || | |
94 | sa->addr.short_addr == IEEE802154_ADDR_UNDEF) { | |
95 | err = -EINVAL; | |
96 | break; | |
97 | } | |
98 | ||
036562f9 AA |
99 | sdata->pan_id = cpu_to_le16(sa->addr.pan_id); |
100 | sdata->short_addr = cpu_to_le16(sa->addr.short_addr); | |
32bad7e3 | 101 | |
9b0bb4a8 | 102 | err = mac802154_wpan_update_llsec(dev); |
32bad7e3 | 103 | break; |
104 | } | |
105 | ||
036562f9 | 106 | spin_unlock_bh(&sdata->mib_lock); |
32bad7e3 | 107 | return err; |
108 | } | |
109 | ||
110 | static int mac802154_wpan_mac_addr(struct net_device *dev, void *p) | |
111 | { | |
776e59de | 112 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
32bad7e3 | 113 | struct sockaddr *addr = p; |
ea7053c1 | 114 | __le64 extended_addr; |
32bad7e3 | 115 | |
116 | if (netif_running(dev)) | |
117 | return -EBUSY; | |
118 | ||
705cbbbe | 119 | ieee802154_be64_to_le64(&extended_addr, addr->sa_data); |
ea7053c1 AA |
120 | if (!ieee802154_is_valid_extended_addr(extended_addr)) |
121 | return -EINVAL; | |
122 | ||
32bad7e3 | 123 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
ea7053c1 | 124 | sdata->extended_addr = extended_addr; |
776e59de | 125 | |
9b0bb4a8 | 126 | return mac802154_wpan_update_llsec(dev); |
32bad7e3 | 127 | } |
128 | ||
19ec690a AA |
129 | static int mac802154_slave_open(struct net_device *dev) |
130 | { | |
131 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
132 | struct ieee802154_sub_if_data *subif; | |
133 | struct ieee802154_local *local = sdata->local; | |
134 | int res = 0; | |
135 | ||
136 | ASSERT_RTNL(); | |
137 | ||
7c118c1a | 138 | if (sdata->vif.type == IEEE802154_DEV_WPAN) { |
19ec690a AA |
139 | mutex_lock(&sdata->local->iflist_mtx); |
140 | list_for_each_entry(subif, &sdata->local->interfaces, list) { | |
7c118c1a AA |
141 | if (subif != sdata && |
142 | subif->vif.type == sdata->vif.type && | |
0ea3da64 | 143 | ieee802154_sdata_running(subif)) { |
19ec690a AA |
144 | mutex_unlock(&sdata->local->iflist_mtx); |
145 | return -EBUSY; | |
146 | } | |
147 | } | |
148 | mutex_unlock(&sdata->local->iflist_mtx); | |
149 | } | |
150 | ||
0ea3da64 | 151 | set_bit(SDATA_STATE_RUNNING, &sdata->state); |
19ec690a | 152 | |
74457641 | 153 | if (!local->open_count) { |
59cb300f | 154 | res = drv_start(local); |
19ec690a AA |
155 | WARN_ON(res); |
156 | if (res) | |
157 | goto err; | |
158 | } | |
159 | ||
74457641 | 160 | local->open_count++; |
19ec690a AA |
161 | netif_start_queue(dev); |
162 | return 0; | |
163 | err: | |
0ea3da64 AA |
164 | /* might already be clear but that doesn't matter */ |
165 | clear_bit(SDATA_STATE_RUNNING, &sdata->state); | |
19ec690a AA |
166 | |
167 | return res; | |
168 | } | |
169 | ||
6ef0023a | 170 | static int mac802154_wpan_open(struct net_device *dev) |
e462ded6 PB |
171 | { |
172 | int rc; | |
59d19cd7 | 173 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
59cb300f | 174 | struct ieee802154_local *local = sdata->local; |
04e850fe | 175 | struct wpan_phy *phy = sdata->local->phy; |
e462ded6 PB |
176 | |
177 | rc = mac802154_slave_open(dev); | |
178 | if (rc < 0) | |
179 | return rc; | |
180 | ||
181 | mutex_lock(&phy->pib_lock); | |
182 | ||
38130c31 AA |
183 | if (local->hw.flags & IEEE802154_HW_PROMISCUOUS) { |
184 | rc = drv_set_promiscuous_mode(local, sdata->promisuous_mode); | |
185 | if (rc < 0) | |
186 | goto out; | |
187 | } | |
188 | ||
776e59de | 189 | if (local->hw.flags & IEEE802154_HW_AFILT) { |
50c79075 AA |
190 | rc = drv_set_pan_id(local, sdata->pan_id); |
191 | if (rc < 0) | |
192 | goto out; | |
193 | ||
776e59de AA |
194 | rc = drv_set_extended_addr(local, sdata->extended_addr); |
195 | if (rc < 0) | |
196 | goto out; | |
78b4bad1 AA |
197 | |
198 | rc = drv_set_short_addr(local, sdata->short_addr); | |
199 | if (rc < 0) | |
200 | goto out; | |
776e59de AA |
201 | } |
202 | ||
a543c598 | 203 | if (local->hw.flags & IEEE802154_HW_LBT) { |
59cb300f | 204 | rc = drv_set_lbt_mode(local, sdata->mac_params.lbt); |
e462ded6 PB |
205 | if (rc < 0) |
206 | goto out; | |
207 | } | |
208 | ||
a543c598 | 209 | if (local->hw.flags & IEEE802154_HW_CSMA_PARAMS) { |
59cb300f AA |
210 | rc = drv_set_csma_params(local, sdata->mac_params.min_be, |
211 | sdata->mac_params.max_be, | |
212 | sdata->mac_params.csma_retries); | |
e462ded6 PB |
213 | if (rc < 0) |
214 | goto out; | |
215 | } | |
216 | ||
a543c598 | 217 | if (local->hw.flags & IEEE802154_HW_FRAME_RETRIES) { |
59cb300f AA |
218 | rc = drv_set_max_frame_retries(local, |
219 | sdata->mac_params.frame_retries); | |
e462ded6 PB |
220 | if (rc < 0) |
221 | goto out; | |
222 | } | |
223 | ||
224 | mutex_unlock(&phy->pib_lock); | |
225 | return 0; | |
226 | ||
227 | out: | |
228 | mutex_unlock(&phy->pib_lock); | |
229 | return rc; | |
230 | } | |
231 | ||
19ec690a AA |
232 | static int mac802154_slave_close(struct net_device *dev) |
233 | { | |
234 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); | |
235 | struct ieee802154_local *local = sdata->local; | |
236 | ||
237 | ASSERT_RTNL(); | |
238 | ||
239 | netif_stop_queue(dev); | |
74457641 | 240 | local->open_count--; |
19ec690a | 241 | |
0ea3da64 | 242 | clear_bit(SDATA_STATE_RUNNING, &sdata->state); |
19ec690a | 243 | |
74457641 | 244 | if (!local->open_count) |
59cb300f | 245 | drv_stop(local); |
19ec690a AA |
246 | |
247 | return 0; | |
248 | } | |
249 | ||
036562f9 | 250 | static int mac802154_set_header_security(struct ieee802154_sub_if_data *sdata, |
f30be4d5 PB |
251 | struct ieee802154_hdr *hdr, |
252 | const struct ieee802154_mac_cb *cb) | |
253 | { | |
254 | struct ieee802154_llsec_params params; | |
255 | u8 level; | |
256 | ||
036562f9 | 257 | mac802154_llsec_get_params(&sdata->sec, ¶ms); |
f30be4d5 PB |
258 | |
259 | if (!params.enabled && cb->secen_override && cb->secen) | |
260 | return -EINVAL; | |
261 | if (!params.enabled || | |
262 | (cb->secen_override && !cb->secen) || | |
263 | !params.out_level) | |
264 | return 0; | |
265 | if (cb->seclevel_override && !cb->seclevel) | |
266 | return -EINVAL; | |
267 | ||
268 | level = cb->seclevel_override ? cb->seclevel : params.out_level; | |
269 | ||
270 | hdr->fc.security_enabled = 1; | |
271 | hdr->sec.level = level; | |
272 | hdr->sec.key_id_mode = params.out_key.mode; | |
273 | if (params.out_key.mode == IEEE802154_SCF_KEY_SHORT_INDEX) | |
274 | hdr->sec.short_src = params.out_key.short_source; | |
275 | else if (params.out_key.mode == IEEE802154_SCF_KEY_HW_INDEX) | |
276 | hdr->sec.extended_src = params.out_key.extended_source; | |
277 | hdr->sec.key_id = params.out_key.id; | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
32bad7e3 | 282 | static int mac802154_header_create(struct sk_buff *skb, |
283 | struct net_device *dev, | |
284 | unsigned short type, | |
e6278d92 PB |
285 | const void *daddr, |
286 | const void *saddr, | |
32bad7e3 | 287 | unsigned len) |
288 | { | |
e6278d92 | 289 | struct ieee802154_hdr hdr; |
59d19cd7 | 290 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
32edc40a | 291 | struct ieee802154_mac_cb *cb = mac_cb(skb); |
e6278d92 | 292 | int hlen; |
32bad7e3 | 293 | |
294 | if (!daddr) | |
295 | return -EINVAL; | |
296 | ||
e6278d92 | 297 | memset(&hdr.fc, 0, sizeof(hdr.fc)); |
32edc40a PB |
298 | hdr.fc.type = cb->type; |
299 | hdr.fc.security_enabled = cb->secen; | |
300 | hdr.fc.ack_request = cb->ackreq; | |
301 | hdr.seq = ieee802154_mlme_ops(dev)->get_dsn(dev); | |
32bad7e3 | 302 | |
036562f9 | 303 | if (mac802154_set_header_security(sdata, &hdr, cb) < 0) |
f30be4d5 PB |
304 | return -EINVAL; |
305 | ||
32bad7e3 | 306 | if (!saddr) { |
036562f9 | 307 | spin_lock_bh(&sdata->mib_lock); |
32bad7e3 | 308 | |
036562f9 AA |
309 | if (sdata->short_addr == cpu_to_le16(IEEE802154_ADDR_BROADCAST) || |
310 | sdata->short_addr == cpu_to_le16(IEEE802154_ADDR_UNDEF) || | |
311 | sdata->pan_id == cpu_to_le16(IEEE802154_PANID_BROADCAST)) { | |
e6278d92 | 312 | hdr.source.mode = IEEE802154_ADDR_LONG; |
036562f9 | 313 | hdr.source.extended_addr = sdata->extended_addr; |
32bad7e3 | 314 | } else { |
e6278d92 | 315 | hdr.source.mode = IEEE802154_ADDR_SHORT; |
036562f9 | 316 | hdr.source.short_addr = sdata->short_addr; |
32bad7e3 | 317 | } |
318 | ||
036562f9 | 319 | hdr.source.pan_id = sdata->pan_id; |
32bad7e3 | 320 | |
036562f9 | 321 | spin_unlock_bh(&sdata->mib_lock); |
e6278d92 PB |
322 | } else { |
323 | hdr.source = *(const struct ieee802154_addr *)saddr; | |
32bad7e3 | 324 | } |
325 | ||
e6278d92 | 326 | hdr.dest = *(const struct ieee802154_addr *)daddr; |
32bad7e3 | 327 | |
e6278d92 PB |
328 | hlen = ieee802154_hdr_push(skb, &hdr); |
329 | if (hlen < 0) | |
330 | return -EINVAL; | |
32bad7e3 | 331 | |
3e69162e | 332 | skb_reset_mac_header(skb); |
e6278d92 | 333 | skb->mac_len = hlen; |
32bad7e3 | 334 | |
8c84296f | 335 | if (len > ieee802154_max_payload(&hdr)) |
d1d7358e PB |
336 | return -EMSGSIZE; |
337 | ||
e6278d92 | 338 | return hlen; |
32bad7e3 | 339 | } |
340 | ||
341 | static int | |
342 | mac802154_header_parse(const struct sk_buff *skb, unsigned char *haddr) | |
343 | { | |
e6278d92 PB |
344 | struct ieee802154_hdr hdr; |
345 | struct ieee802154_addr *addr = (struct ieee802154_addr *)haddr; | |
32bad7e3 | 346 | |
e6278d92 PB |
347 | if (ieee802154_hdr_peek_addrs(skb, &hdr) < 0) { |
348 | pr_debug("malformed packet\n"); | |
349 | return 0; | |
32bad7e3 | 350 | } |
351 | ||
e6278d92 PB |
352 | *addr = hdr.source; |
353 | return sizeof(*addr); | |
32bad7e3 | 354 | } |
355 | ||
32bad7e3 | 356 | static struct header_ops mac802154_header_ops = { |
357 | .create = mac802154_header_create, | |
358 | .parse = mac802154_header_parse, | |
359 | }; | |
360 | ||
361 | static const struct net_device_ops mac802154_wpan_ops = { | |
e462ded6 | 362 | .ndo_open = mac802154_wpan_open, |
32bad7e3 | 363 | .ndo_stop = mac802154_slave_close, |
e5e584fc | 364 | .ndo_start_xmit = ieee802154_subif_start_xmit, |
32bad7e3 | 365 | .ndo_do_ioctl = mac802154_wpan_ioctl, |
366 | .ndo_set_mac_address = mac802154_wpan_mac_addr, | |
367 | }; | |
368 | ||
b9ff77e5 | 369 | static const struct net_device_ops mac802154_monitor_ops = { |
38130c31 | 370 | .ndo_open = mac802154_wpan_open, |
b9ff77e5 AA |
371 | .ndo_stop = mac802154_slave_close, |
372 | .ndo_start_xmit = ieee802154_monitor_start_xmit, | |
373 | }; | |
374 | ||
f30be4d5 PB |
375 | static void mac802154_wpan_free(struct net_device *dev) |
376 | { | |
59d19cd7 | 377 | struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); |
f30be4d5 | 378 | |
036562f9 | 379 | mac802154_llsec_destroy(&sdata->sec); |
f30be4d5 PB |
380 | |
381 | free_netdev(dev); | |
382 | } | |
383 | ||
d5ae67ba | 384 | static void ieee802154_if_setup(struct net_device *dev) |
32bad7e3 | 385 | { |
e57a8946 AA |
386 | dev->addr_len = IEEE802154_EXTENDED_ADDR_LEN; |
387 | memset(dev->broadcast, 0xff, IEEE802154_EXTENDED_ADDR_LEN); | |
32bad7e3 | 388 | |
389 | dev->hard_header_len = MAC802154_FRAME_HARD_HEADER_LEN; | |
f30be4d5 | 390 | dev->needed_tailroom = 2 + 16; /* FCS + MIC */ |
32bad7e3 | 391 | dev->mtu = IEEE802154_MTU; |
e937f583 | 392 | dev->tx_queue_len = 300; |
32bad7e3 | 393 | dev->flags = IFF_NOARP | IFF_BROADCAST; |
d5ae67ba | 394 | } |
32bad7e3 | 395 | |
d5ae67ba AA |
396 | static int |
397 | ieee802154_setup_sdata(struct ieee802154_sub_if_data *sdata, int type) | |
398 | { | |
399 | /* set some type-dependent values */ | |
7c118c1a | 400 | sdata->vif.type = type; |
32bad7e3 | 401 | |
036562f9 AA |
402 | get_random_bytes(&sdata->bsn, 1); |
403 | get_random_bytes(&sdata->dsn, 1); | |
32bad7e3 | 404 | |
e462ded6 | 405 | /* defaults per 802.15.4-2011 */ |
036562f9 AA |
406 | sdata->mac_params.min_be = 3; |
407 | sdata->mac_params.max_be = 5; | |
408 | sdata->mac_params.csma_retries = 4; | |
409 | /* for compatibility, actual default is 3 */ | |
410 | sdata->mac_params.frame_retries = -1; | |
e462ded6 | 411 | |
dee56d14 | 412 | ieee802154_be64_to_le64(&sdata->extended_addr, sdata->dev->dev_addr); |
036562f9 AA |
413 | sdata->pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST); |
414 | sdata->short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST); | |
f30be4d5 | 415 | |
d5ae67ba AA |
416 | switch (type) { |
417 | case IEEE802154_DEV_WPAN: | |
418 | sdata->dev->header_ops = &mac802154_header_ops; | |
419 | sdata->dev->destructor = mac802154_wpan_free; | |
420 | sdata->dev->netdev_ops = &mac802154_wpan_ops; | |
421 | sdata->dev->ml_priv = &mac802154_mlme_wpan; | |
422 | sdata->promisuous_mode = false; | |
986a8abf | 423 | |
d5ae67ba AA |
424 | spin_lock_init(&sdata->mib_lock); |
425 | mutex_init(&sdata->sec_mtx); | |
986a8abf | 426 | |
d5ae67ba AA |
427 | mac802154_llsec_init(&sdata->sec); |
428 | break; | |
429 | case IEEE802154_DEV_MONITOR: | |
430 | sdata->dev->destructor = free_netdev; | |
431 | sdata->dev->netdev_ops = &mac802154_monitor_ops; | |
d5ae67ba AA |
432 | sdata->promisuous_mode = true; |
433 | break; | |
434 | default: | |
435 | BUG(); | |
436 | } | |
986a8abf AA |
437 | |
438 | return 0; | |
439 | } | |
440 | ||
441 | struct net_device * | |
442 | ieee802154_if_add(struct ieee802154_local *local, const char *name, | |
443 | struct wpan_dev **new_wpan_dev, int type) | |
444 | { | |
d5ae67ba AA |
445 | struct net_device *ndev = NULL; |
446 | struct ieee802154_sub_if_data *sdata = NULL; | |
447 | int ret = -ENOMEM; | |
448 | ||
449 | ASSERT_RTNL(); | |
450 | ||
7c118c1a AA |
451 | ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, name, |
452 | NET_NAME_UNKNOWN, ieee802154_if_setup); | |
d5ae67ba AA |
453 | if (!ndev) |
454 | return ERR_PTR(-ENOMEM); | |
455 | ||
456 | ndev->needed_headroom = local->hw.extra_tx_headroom; | |
457 | ||
458 | ret = dev_alloc_name(ndev, ndev->name); | |
459 | if (ret < 0) | |
460 | goto err; | |
986a8abf AA |
461 | |
462 | switch (type) { | |
986a8abf | 463 | case IEEE802154_DEV_WPAN: |
d5ae67ba | 464 | ndev->type = ARPHRD_IEEE802154; |
986a8abf | 465 | break; |
d5ae67ba AA |
466 | case IEEE802154_DEV_MONITOR: |
467 | ndev->type = ARPHRD_IEEE802154_MONITOR; | |
986a8abf | 468 | break; |
d5ae67ba AA |
469 | default: |
470 | ret = -EINVAL; | |
471 | goto err; | |
986a8abf | 472 | } |
d5ae67ba | 473 | |
dee56d14 AA |
474 | ieee802154_le64_to_be64(ndev->perm_addr, |
475 | &local->hw.phy->perm_extended_addr); | |
476 | memcpy(ndev->dev_addr, ndev->perm_addr, IEEE802154_EXTENDED_ADDR_LEN); | |
d5ae67ba AA |
477 | /* TODO check this */ |
478 | SET_NETDEV_DEV(ndev, &local->phy->dev); | |
479 | sdata = netdev_priv(ndev); | |
480 | ndev->ieee802154_ptr = &sdata->wpan_dev; | |
481 | memcpy(sdata->name, ndev->name, IFNAMSIZ); | |
482 | sdata->dev = ndev; | |
483 | sdata->wpan_dev.wpan_phy = local->hw.phy; | |
484 | sdata->local = local; | |
485 | ||
486 | /* setup type-dependent data */ | |
487 | ret = ieee802154_setup_sdata(sdata, type); | |
488 | if (ret) | |
986a8abf AA |
489 | goto err; |
490 | ||
d5ae67ba AA |
491 | if (ndev) { |
492 | ret = register_netdevice(ndev); | |
493 | if (ret < 0) | |
494 | goto err; | |
495 | } | |
496 | ||
497 | mutex_lock(&local->iflist_mtx); | |
498 | list_add_tail_rcu(&sdata->list, &local->interfaces); | |
499 | mutex_unlock(&local->iflist_mtx); | |
986a8abf | 500 | |
d5ae67ba AA |
501 | if (new_wpan_dev) |
502 | *new_wpan_dev = &sdata->wpan_dev; | |
503 | ||
504 | return ndev; | |
986a8abf | 505 | |
986a8abf | 506 | err: |
d5ae67ba AA |
507 | free_netdev(ndev); |
508 | return ERR_PTR(ret); | |
986a8abf AA |
509 | } |
510 | ||
b210b187 AA |
511 | void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata) |
512 | { | |
513 | ASSERT_RTNL(); | |
514 | ||
515 | mutex_lock(&sdata->local->iflist_mtx); | |
516 | list_del_rcu(&sdata->list); | |
517 | mutex_unlock(&sdata->local->iflist_mtx); | |
518 | ||
519 | synchronize_rcu(); | |
520 | unregister_netdevice(sdata->dev); | |
521 | } |