Bluetooth: 6lowpan: fix skb_unshare behaviour
[deliverable/linux.git] / net / mac802154 / mib.c
CommitLineData
ef2486f5 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 *
ef2486f5 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/if_arp.h>
21
22#include <net/mac802154.h>
b70ab2e8 23#include <net/ieee802154_netdev.h>
5ad60d36 24#include <net/cfg802154.h>
ef2486f5 25
0f1556bc 26#include "ieee802154_i.h"
59cb300f 27#include "driver-ops.h"
ef2486f5 28
b70ab2e8 29void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val)
48e44d50 30{
59d19cd7 31 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
48e44d50 32
33 BUG_ON(dev->type != ARPHRD_IEEE802154);
34
036562f9
AA
35 spin_lock_bh(&sdata->mib_lock);
36 sdata->short_addr = val;
37 spin_unlock_bh(&sdata->mib_lock);
48e44d50 38}
39
b70ab2e8 40__le16 mac802154_dev_get_short_addr(const struct net_device *dev)
e885a47a 41{
59d19cd7 42 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
b70ab2e8 43 __le16 ret;
e885a47a 44
45 BUG_ON(dev->type != ARPHRD_IEEE802154);
46
036562f9
AA
47 spin_lock_bh(&sdata->mib_lock);
48 ret = sdata->short_addr;
49 spin_unlock_bh(&sdata->mib_lock);
e885a47a 50
51 return ret;
52}
53
b70ab2e8 54__le16 mac802154_dev_get_pan_id(const struct net_device *dev)
dcbe4f93 55{
59d19cd7 56 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
b70ab2e8 57 __le16 ret;
dcbe4f93 58
59 BUG_ON(dev->type != ARPHRD_IEEE802154);
60
036562f9
AA
61 spin_lock_bh(&sdata->mib_lock);
62 ret = sdata->pan_id;
63 spin_unlock_bh(&sdata->mib_lock);
dcbe4f93 64
65 return ret;
66}
67
b70ab2e8 68void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val)
dcbe4f93 69{
59d19cd7 70 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
dcbe4f93 71
72 BUG_ON(dev->type != ARPHRD_IEEE802154);
73
036562f9
AA
74 spin_lock_bh(&sdata->mib_lock);
75 sdata->pan_id = val;
76 spin_unlock_bh(&sdata->mib_lock);
dcbe4f93 77}
66b69d4d 78
0483546a
TC
79u8 mac802154_dev_get_dsn(const struct net_device *dev)
80{
59d19cd7 81 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
0483546a
TC
82
83 BUG_ON(dev->type != ARPHRD_IEEE802154);
84
036562f9 85 return sdata->dsn++;
0483546a
TC
86}
87
66b69d4d 88void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan)
89{
59d19cd7 90 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
12439a53
AA
91 struct ieee802154_local *local = sdata->local;
92 int res;
66b69d4d 93
94 BUG_ON(dev->type != ARPHRD_IEEE802154);
95
12439a53
AA
96 res = drv_set_channel(local, page, chan);
97 if (res) {
98 pr_debug("set_channel failed\n");
4710d806 99 } else {
12439a53
AA
100 mutex_lock(&local->phy->pib_lock);
101 local->phy->current_channel = chan;
102 local->phy->current_page = page;
103 mutex_unlock(&local->phy->pib_lock);
4710d806 104 }
66b69d4d 105}
29e02374
PB
106
107
108int mac802154_get_params(struct net_device *dev,
109 struct ieee802154_llsec_params *params)
110{
59d19cd7 111 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
112 int res;
113
114 BUG_ON(dev->type != ARPHRD_IEEE802154);
115
036562f9
AA
116 mutex_lock(&sdata->sec_mtx);
117 res = mac802154_llsec_get_params(&sdata->sec, params);
118 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
119
120 return res;
121}
122
123int mac802154_set_params(struct net_device *dev,
124 const struct ieee802154_llsec_params *params,
125 int changed)
126{
59d19cd7 127 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
128 int res;
129
130 BUG_ON(dev->type != ARPHRD_IEEE802154);
131
036562f9
AA
132 mutex_lock(&sdata->sec_mtx);
133 res = mac802154_llsec_set_params(&sdata->sec, params, changed);
134 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
135
136 return res;
137}
138
139
140int mac802154_add_key(struct net_device *dev,
141 const struct ieee802154_llsec_key_id *id,
142 const struct ieee802154_llsec_key *key)
143{
59d19cd7 144 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
145 int res;
146
147 BUG_ON(dev->type != ARPHRD_IEEE802154);
148
036562f9
AA
149 mutex_lock(&sdata->sec_mtx);
150 res = mac802154_llsec_key_add(&sdata->sec, id, key);
151 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
152
153 return res;
154}
155
156int mac802154_del_key(struct net_device *dev,
157 const struct ieee802154_llsec_key_id *id)
158{
59d19cd7 159 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
160 int res;
161
162 BUG_ON(dev->type != ARPHRD_IEEE802154);
163
036562f9
AA
164 mutex_lock(&sdata->sec_mtx);
165 res = mac802154_llsec_key_del(&sdata->sec, id);
166 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
167
168 return res;
169}
170
171
172int mac802154_add_dev(struct net_device *dev,
173 const struct ieee802154_llsec_device *llsec_dev)
174{
59d19cd7 175 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
176 int res;
177
178 BUG_ON(dev->type != ARPHRD_IEEE802154);
179
036562f9
AA
180 mutex_lock(&sdata->sec_mtx);
181 res = mac802154_llsec_dev_add(&sdata->sec, llsec_dev);
182 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
183
184 return res;
185}
186
187int mac802154_del_dev(struct net_device *dev, __le64 dev_addr)
188{
59d19cd7 189 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
190 int res;
191
192 BUG_ON(dev->type != ARPHRD_IEEE802154);
193
036562f9
AA
194 mutex_lock(&sdata->sec_mtx);
195 res = mac802154_llsec_dev_del(&sdata->sec, dev_addr);
196 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
197
198 return res;
199}
200
201
202int mac802154_add_devkey(struct net_device *dev,
203 __le64 device_addr,
204 const struct ieee802154_llsec_device_key *key)
205{
59d19cd7 206 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
207 int res;
208
209 BUG_ON(dev->type != ARPHRD_IEEE802154);
210
036562f9
AA
211 mutex_lock(&sdata->sec_mtx);
212 res = mac802154_llsec_devkey_add(&sdata->sec, device_addr, key);
213 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
214
215 return res;
216}
217
218int mac802154_del_devkey(struct net_device *dev,
219 __le64 device_addr,
220 const struct ieee802154_llsec_device_key *key)
221{
59d19cd7 222 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
223 int res;
224
225 BUG_ON(dev->type != ARPHRD_IEEE802154);
226
036562f9
AA
227 mutex_lock(&sdata->sec_mtx);
228 res = mac802154_llsec_devkey_del(&sdata->sec, device_addr, key);
229 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
230
231 return res;
232}
233
234
235int mac802154_add_seclevel(struct net_device *dev,
236 const struct ieee802154_llsec_seclevel *sl)
237{
59d19cd7 238 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
239 int res;
240
241 BUG_ON(dev->type != ARPHRD_IEEE802154);
242
036562f9
AA
243 mutex_lock(&sdata->sec_mtx);
244 res = mac802154_llsec_seclevel_add(&sdata->sec, sl);
245 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
246
247 return res;
248}
249
250int mac802154_del_seclevel(struct net_device *dev,
251 const struct ieee802154_llsec_seclevel *sl)
252{
59d19cd7 253 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
254 int res;
255
256 BUG_ON(dev->type != ARPHRD_IEEE802154);
257
036562f9
AA
258 mutex_lock(&sdata->sec_mtx);
259 res = mac802154_llsec_seclevel_del(&sdata->sec, sl);
260 mutex_unlock(&sdata->sec_mtx);
29e02374
PB
261
262 return res;
263}
264
265
266void mac802154_lock_table(struct net_device *dev)
267{
59d19cd7 268 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
269
270 BUG_ON(dev->type != ARPHRD_IEEE802154);
271
036562f9 272 mutex_lock(&sdata->sec_mtx);
29e02374
PB
273}
274
275void mac802154_get_table(struct net_device *dev,
276 struct ieee802154_llsec_table **t)
277{
59d19cd7 278 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
279
280 BUG_ON(dev->type != ARPHRD_IEEE802154);
281
036562f9 282 *t = &sdata->sec.table;
29e02374
PB
283}
284
285void mac802154_unlock_table(struct net_device *dev)
286{
59d19cd7 287 struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
29e02374
PB
288
289 BUG_ON(dev->type != ARPHRD_IEEE802154);
290
036562f9 291 mutex_unlock(&sdata->sec_mtx);
29e02374 292}
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