Commit | Line | Data |
---|---|---|
e9f207f0 JB |
1 | /* |
2 | * Copyright 2003-2005 Devicescape Software, Inc. | |
3 | * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> | |
4 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
d0a77c65 | 5 | * Copyright (C) 2015 Intel Deutschland GmbH |
e9f207f0 JB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/kobject.h> | |
5a0e3ad6 | 13 | #include <linux/slab.h> |
e9f207f0 | 14 | #include "ieee80211_i.h" |
2c8dccc7 | 15 | #include "key.h" |
e9f207f0 JB |
16 | #include "debugfs.h" |
17 | #include "debugfs_key.h" | |
18 | ||
07caf9d6 | 19 | #define KEY_READ(name, prop, format_string) \ |
e9f207f0 JB |
20 | static ssize_t key_##name##_read(struct file *file, \ |
21 | char __user *userbuf, \ | |
22 | size_t count, loff_t *ppos) \ | |
23 | { \ | |
e9f207f0 | 24 | struct ieee80211_key *key = file->private_data; \ |
07caf9d6 EP |
25 | return mac80211_format_buffer(userbuf, count, ppos, \ |
26 | format_string, key->prop); \ | |
e9f207f0 | 27 | } |
07caf9d6 EP |
28 | #define KEY_READ_D(name) KEY_READ(name, name, "%d\n") |
29 | #define KEY_READ_X(name) KEY_READ(name, name, "0x%x\n") | |
e9f207f0 JB |
30 | |
31 | #define KEY_OPS(name) \ | |
32 | static const struct file_operations key_ ##name## _ops = { \ | |
33 | .read = key_##name##_read, \ | |
234e3405 | 34 | .open = simple_open, \ |
2b18ab36 | 35 | .llseek = generic_file_llseek, \ |
e9f207f0 JB |
36 | } |
37 | ||
d0a77c65 JB |
38 | #define KEY_OPS_W(name) \ |
39 | static const struct file_operations key_ ##name## _ops = { \ | |
40 | .read = key_##name##_read, \ | |
41 | .write = key_##name##_write, \ | |
42 | .open = simple_open, \ | |
43 | .llseek = generic_file_llseek, \ | |
44 | } | |
45 | ||
e9f207f0 JB |
46 | #define KEY_FILE(name, format) \ |
47 | KEY_READ_##format(name) \ | |
48 | KEY_OPS(name) | |
49 | ||
07caf9d6 EP |
50 | #define KEY_CONF_READ(name, format_string) \ |
51 | KEY_READ(conf_##name, conf.name, format_string) | |
52 | #define KEY_CONF_READ_D(name) KEY_CONF_READ(name, "%d\n") | |
8f20fc24 JB |
53 | |
54 | #define KEY_CONF_OPS(name) \ | |
55 | static const struct file_operations key_ ##name## _ops = { \ | |
56 | .read = key_conf_##name##_read, \ | |
234e3405 | 57 | .open = simple_open, \ |
2b18ab36 | 58 | .llseek = generic_file_llseek, \ |
8f20fc24 JB |
59 | } |
60 | ||
61 | #define KEY_CONF_FILE(name, format) \ | |
62 | KEY_CONF_READ_##format(name) \ | |
63 | KEY_CONF_OPS(name) | |
64 | ||
65 | KEY_CONF_FILE(keylen, D); | |
66 | KEY_CONF_FILE(keyidx, D); | |
67 | KEY_CONF_FILE(hw_key_idx, D); | |
11a843b7 | 68 | KEY_FILE(flags, X); |
07caf9d6 | 69 | KEY_READ(ifindex, sdata->name, "%s\n"); |
e7a64f12 | 70 | KEY_OPS(ifindex); |
e9f207f0 JB |
71 | |
72 | static ssize_t key_algorithm_read(struct file *file, | |
73 | char __user *userbuf, | |
74 | size_t count, loff_t *ppos) | |
75 | { | |
97359d12 | 76 | char buf[15]; |
e9f207f0 | 77 | struct ieee80211_key *key = file->private_data; |
97359d12 | 78 | u32 c = key->conf.cipher; |
e9f207f0 | 79 | |
97359d12 JB |
80 | sprintf(buf, "%.2x-%.2x-%.2x:%d\n", |
81 | c >> 24, (c >> 16) & 0xff, (c >> 8) & 0xff, c & 0xff); | |
82 | return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); | |
e9f207f0 JB |
83 | } |
84 | KEY_OPS(algorithm); | |
85 | ||
d0a77c65 JB |
86 | static ssize_t key_tx_spec_write(struct file *file, const char __user *userbuf, |
87 | size_t count, loff_t *ppos) | |
88 | { | |
89 | struct ieee80211_key *key = file->private_data; | |
90 | u64 pn; | |
91 | int ret; | |
92 | ||
93 | switch (key->conf.cipher) { | |
94 | case WLAN_CIPHER_SUITE_WEP40: | |
95 | case WLAN_CIPHER_SUITE_WEP104: | |
96 | return -EINVAL; | |
97 | case WLAN_CIPHER_SUITE_TKIP: | |
98 | /* not supported yet */ | |
99 | return -EOPNOTSUPP; | |
100 | case WLAN_CIPHER_SUITE_CCMP: | |
101 | case WLAN_CIPHER_SUITE_CCMP_256: | |
102 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
103 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: | |
104 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: | |
105 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
106 | case WLAN_CIPHER_SUITE_GCMP: | |
107 | case WLAN_CIPHER_SUITE_GCMP_256: | |
108 | ret = kstrtou64_from_user(userbuf, count, 16, &pn); | |
109 | if (ret) | |
110 | return ret; | |
111 | /* PN is a 48-bit counter */ | |
112 | if (pn >= (1ULL << 48)) | |
113 | return -ERANGE; | |
114 | atomic64_set(&key->conf.tx_pn, pn); | |
115 | return count; | |
116 | default: | |
117 | return 0; | |
118 | } | |
119 | } | |
120 | ||
e9f207f0 JB |
121 | static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf, |
122 | size_t count, loff_t *ppos) | |
123 | { | |
aba83a0b | 124 | u64 pn; |
e9f207f0 JB |
125 | char buf[20]; |
126 | int len; | |
127 | struct ieee80211_key *key = file->private_data; | |
128 | ||
97359d12 JB |
129 | switch (key->conf.cipher) { |
130 | case WLAN_CIPHER_SUITE_WEP40: | |
131 | case WLAN_CIPHER_SUITE_WEP104: | |
e9f207f0 | 132 | len = scnprintf(buf, sizeof(buf), "\n"); |
50339a67 | 133 | break; |
97359d12 | 134 | case WLAN_CIPHER_SUITE_TKIP: |
e9f207f0 | 135 | len = scnprintf(buf, sizeof(buf), "%08x %04x\n", |
b0f76b33 HH |
136 | key->u.tkip.tx.iv32, |
137 | key->u.tkip.tx.iv16); | |
50339a67 | 138 | break; |
97359d12 | 139 | case WLAN_CIPHER_SUITE_CCMP: |
2b2ba0db | 140 | case WLAN_CIPHER_SUITE_CCMP_256: |
97359d12 | 141 | case WLAN_CIPHER_SUITE_AES_CMAC: |
56c52da2 | 142 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
8ade538b JM |
143 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
144 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
00b9cfa3 JM |
145 | case WLAN_CIPHER_SUITE_GCMP: |
146 | case WLAN_CIPHER_SUITE_GCMP_256: | |
db388a56 | 147 | pn = atomic64_read(&key->conf.tx_pn); |
00b9cfa3 JM |
148 | len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n", |
149 | (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24), | |
150 | (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn); | |
151 | break; | |
e9f207f0 JB |
152 | default: |
153 | return 0; | |
154 | } | |
155 | return simple_read_from_buffer(userbuf, count, ppos, buf, len); | |
156 | } | |
d0a77c65 | 157 | KEY_OPS_W(tx_spec); |
e9f207f0 JB |
158 | |
159 | static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, | |
160 | size_t count, loff_t *ppos) | |
161 | { | |
162 | struct ieee80211_key *key = file->private_data; | |
5a306f58 | 163 | char buf[14*IEEE80211_NUM_TIDS+1], *p = buf; |
e9f207f0 JB |
164 | int i, len; |
165 | const u8 *rpn; | |
166 | ||
97359d12 JB |
167 | switch (key->conf.cipher) { |
168 | case WLAN_CIPHER_SUITE_WEP40: | |
169 | case WLAN_CIPHER_SUITE_WEP104: | |
e9f207f0 | 170 | len = scnprintf(buf, sizeof(buf), "\n"); |
50339a67 | 171 | break; |
97359d12 | 172 | case WLAN_CIPHER_SUITE_TKIP: |
5a306f58 | 173 | for (i = 0; i < IEEE80211_NUM_TIDS; i++) |
e9f207f0 JB |
174 | p += scnprintf(p, sizeof(buf)+buf-p, |
175 | "%08x %04x\n", | |
b0f76b33 HH |
176 | key->u.tkip.rx[i].iv32, |
177 | key->u.tkip.rx[i].iv16); | |
e9f207f0 | 178 | len = p - buf; |
50339a67 | 179 | break; |
97359d12 | 180 | case WLAN_CIPHER_SUITE_CCMP: |
2b2ba0db | 181 | case WLAN_CIPHER_SUITE_CCMP_256: |
5a306f58 | 182 | for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) { |
e9f207f0 JB |
183 | rpn = key->u.ccmp.rx_pn[i]; |
184 | p += scnprintf(p, sizeof(buf)+buf-p, | |
185 | "%02x%02x%02x%02x%02x%02x\n", | |
186 | rpn[0], rpn[1], rpn[2], | |
187 | rpn[3], rpn[4], rpn[5]); | |
188 | } | |
189 | len = p - buf; | |
50339a67 | 190 | break; |
97359d12 | 191 | case WLAN_CIPHER_SUITE_AES_CMAC: |
56c52da2 | 192 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
3cfcf6ac JM |
193 | rpn = key->u.aes_cmac.rx_pn; |
194 | p += scnprintf(p, sizeof(buf)+buf-p, | |
195 | "%02x%02x%02x%02x%02x%02x\n", | |
196 | rpn[0], rpn[1], rpn[2], | |
197 | rpn[3], rpn[4], rpn[5]); | |
198 | len = p - buf; | |
199 | break; | |
8ade538b JM |
200 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
201 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
202 | rpn = key->u.aes_gmac.rx_pn; | |
203 | p += scnprintf(p, sizeof(buf)+buf-p, | |
204 | "%02x%02x%02x%02x%02x%02x\n", | |
205 | rpn[0], rpn[1], rpn[2], | |
206 | rpn[3], rpn[4], rpn[5]); | |
207 | len = p - buf; | |
208 | break; | |
00b9cfa3 JM |
209 | case WLAN_CIPHER_SUITE_GCMP: |
210 | case WLAN_CIPHER_SUITE_GCMP_256: | |
211 | for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) { | |
212 | rpn = key->u.gcmp.rx_pn[i]; | |
213 | p += scnprintf(p, sizeof(buf)+buf-p, | |
214 | "%02x%02x%02x%02x%02x%02x\n", | |
215 | rpn[0], rpn[1], rpn[2], | |
216 | rpn[3], rpn[4], rpn[5]); | |
217 | } | |
218 | len = p - buf; | |
219 | break; | |
e9f207f0 JB |
220 | default: |
221 | return 0; | |
222 | } | |
223 | return simple_read_from_buffer(userbuf, count, ppos, buf, len); | |
224 | } | |
225 | KEY_OPS(rx_spec); | |
226 | ||
227 | static ssize_t key_replays_read(struct file *file, char __user *userbuf, | |
228 | size_t count, loff_t *ppos) | |
229 | { | |
230 | struct ieee80211_key *key = file->private_data; | |
231 | char buf[20]; | |
232 | int len; | |
233 | ||
97359d12 JB |
234 | switch (key->conf.cipher) { |
235 | case WLAN_CIPHER_SUITE_CCMP: | |
2b2ba0db | 236 | case WLAN_CIPHER_SUITE_CCMP_256: |
3cfcf6ac JM |
237 | len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays); |
238 | break; | |
97359d12 | 239 | case WLAN_CIPHER_SUITE_AES_CMAC: |
56c52da2 | 240 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
3cfcf6ac JM |
241 | len = scnprintf(buf, sizeof(buf), "%u\n", |
242 | key->u.aes_cmac.replays); | |
243 | break; | |
8ade538b JM |
244 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
245 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
246 | len = scnprintf(buf, sizeof(buf), "%u\n", | |
247 | key->u.aes_gmac.replays); | |
248 | break; | |
00b9cfa3 JM |
249 | case WLAN_CIPHER_SUITE_GCMP: |
250 | case WLAN_CIPHER_SUITE_GCMP_256: | |
251 | len = scnprintf(buf, sizeof(buf), "%u\n", key->u.gcmp.replays); | |
252 | break; | |
3cfcf6ac | 253 | default: |
e9f207f0 | 254 | return 0; |
3cfcf6ac | 255 | } |
e9f207f0 JB |
256 | return simple_read_from_buffer(userbuf, count, ppos, buf, len); |
257 | } | |
258 | KEY_OPS(replays); | |
259 | ||
3cfcf6ac JM |
260 | static ssize_t key_icverrors_read(struct file *file, char __user *userbuf, |
261 | size_t count, loff_t *ppos) | |
262 | { | |
263 | struct ieee80211_key *key = file->private_data; | |
264 | char buf[20]; | |
265 | int len; | |
266 | ||
97359d12 JB |
267 | switch (key->conf.cipher) { |
268 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
56c52da2 | 269 | case WLAN_CIPHER_SUITE_BIP_CMAC_256: |
3cfcf6ac JM |
270 | len = scnprintf(buf, sizeof(buf), "%u\n", |
271 | key->u.aes_cmac.icverrors); | |
272 | break; | |
8ade538b JM |
273 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
274 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
275 | len = scnprintf(buf, sizeof(buf), "%u\n", | |
276 | key->u.aes_gmac.icverrors); | |
277 | break; | |
3cfcf6ac JM |
278 | default: |
279 | return 0; | |
280 | } | |
281 | return simple_read_from_buffer(userbuf, count, ppos, buf, len); | |
282 | } | |
283 | KEY_OPS(icverrors); | |
284 | ||
b98ea058 S |
285 | static ssize_t key_mic_failures_read(struct file *file, char __user *userbuf, |
286 | size_t count, loff_t *ppos) | |
287 | { | |
288 | struct ieee80211_key *key = file->private_data; | |
289 | char buf[20]; | |
290 | int len; | |
291 | ||
292 | if (key->conf.cipher != WLAN_CIPHER_SUITE_TKIP) | |
293 | return -EINVAL; | |
294 | ||
295 | len = scnprintf(buf, sizeof(buf), "%u\n", key->u.tkip.mic_failures); | |
296 | ||
297 | return simple_read_from_buffer(userbuf, count, ppos, buf, len); | |
298 | } | |
299 | KEY_OPS(mic_failures); | |
300 | ||
e9f207f0 JB |
301 | static ssize_t key_key_read(struct file *file, char __user *userbuf, |
302 | size_t count, loff_t *ppos) | |
303 | { | |
304 | struct ieee80211_key *key = file->private_data; | |
520efd1a | 305 | int i, bufsize = 2 * key->conf.keylen + 2; |
e9f207f0 JB |
306 | char *buf = kmalloc(bufsize, GFP_KERNEL); |
307 | char *p = buf; | |
520efd1a JJ |
308 | ssize_t res; |
309 | ||
310 | if (!buf) | |
311 | return -ENOMEM; | |
e9f207f0 | 312 | |
8f20fc24 JB |
313 | for (i = 0; i < key->conf.keylen; i++) |
314 | p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]); | |
e9f207f0 JB |
315 | p += scnprintf(p, bufsize+buf-p, "\n"); |
316 | res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); | |
317 | kfree(buf); | |
318 | return res; | |
319 | } | |
320 | KEY_OPS(key); | |
321 | ||
322 | #define DEBUGFS_ADD(name) \ | |
7bcfaf2f JB |
323 | debugfs_create_file(#name, 0400, key->debugfs.dir, \ |
324 | key, &key_##name##_ops); | |
d0a77c65 JB |
325 | #define DEBUGFS_ADD_W(name) \ |
326 | debugfs_create_file(#name, 0600, key->debugfs.dir, \ | |
327 | key, &key_##name##_ops); | |
e9f207f0 | 328 | |
3b96766f | 329 | void ieee80211_debugfs_key_add(struct ieee80211_key *key) |
9446f3ef | 330 | { |
50339a67 | 331 | static int keycount; |
9446f3ef | 332 | char buf[100]; |
3b96766f | 333 | struct sta_info *sta; |
e9f207f0 | 334 | |
3b96766f | 335 | if (!key->local->debugfs.keys) |
e9f207f0 JB |
336 | return; |
337 | ||
50339a67 | 338 | sprintf(buf, "%d", keycount); |
d9c58f30 | 339 | key->debugfs.cnt = keycount; |
50339a67 | 340 | keycount++; |
e9f207f0 | 341 | key->debugfs.dir = debugfs_create_dir(buf, |
3b96766f | 342 | key->local->debugfs.keys); |
e9f207f0 JB |
343 | |
344 | if (!key->debugfs.dir) | |
345 | return; | |
346 | ||
40b275b6 JB |
347 | sta = key->sta; |
348 | if (sta) { | |
9446f3ef JB |
349 | sprintf(buf, "../../netdev:%s/stations/%pM", |
350 | sta->sdata->name, sta->sta.addr); | |
3b96766f JB |
351 | key->debugfs.stalink = |
352 | debugfs_create_symlink("station", key->debugfs.dir, buf); | |
40b275b6 | 353 | } |
3b96766f | 354 | |
e9f207f0 | 355 | DEBUGFS_ADD(keylen); |
8f20fc24 | 356 | DEBUGFS_ADD(flags); |
e9f207f0 JB |
357 | DEBUGFS_ADD(keyidx); |
358 | DEBUGFS_ADD(hw_key_idx); | |
e9f207f0 | 359 | DEBUGFS_ADD(algorithm); |
d0a77c65 | 360 | DEBUGFS_ADD_W(tx_spec); |
e9f207f0 JB |
361 | DEBUGFS_ADD(rx_spec); |
362 | DEBUGFS_ADD(replays); | |
3cfcf6ac | 363 | DEBUGFS_ADD(icverrors); |
b98ea058 | 364 | DEBUGFS_ADD(mic_failures); |
e9f207f0 | 365 | DEBUGFS_ADD(key); |
e7a64f12 | 366 | DEBUGFS_ADD(ifindex); |
e9f207f0 JB |
367 | }; |
368 | ||
e9f207f0 JB |
369 | void ieee80211_debugfs_key_remove(struct ieee80211_key *key) |
370 | { | |
371 | if (!key) | |
372 | return; | |
373 | ||
7bcfaf2f | 374 | debugfs_remove_recursive(key->debugfs.dir); |
e9f207f0 JB |
375 | key->debugfs.dir = NULL; |
376 | } | |
f7e0104c JB |
377 | |
378 | void ieee80211_debugfs_key_update_default(struct ieee80211_sub_if_data *sdata) | |
e9f207f0 JB |
379 | { |
380 | char buf[50]; | |
78520cad | 381 | struct ieee80211_key *key; |
e9f207f0 | 382 | |
ddbfe860 | 383 | if (!sdata->vif.debugfs_dir) |
e9f207f0 JB |
384 | return; |
385 | ||
f7e0104c | 386 | lockdep_assert_held(&sdata->local->key_mtx); |
78520cad | 387 | |
5c6761ad FF |
388 | debugfs_remove(sdata->debugfs.default_unicast_key); |
389 | sdata->debugfs.default_unicast_key = NULL; | |
135792ec | 390 | |
f7e0104c | 391 | if (sdata->default_unicast_key) { |
40b275b6 JB |
392 | key = key_mtx_dereference(sdata->local, |
393 | sdata->default_unicast_key); | |
78520cad | 394 | sprintf(buf, "../keys/%d", key->debugfs.cnt); |
f7e0104c JB |
395 | sdata->debugfs.default_unicast_key = |
396 | debugfs_create_symlink("default_unicast_key", | |
ddbfe860 | 397 | sdata->vif.debugfs_dir, buf); |
135792ec JB |
398 | } |
399 | ||
5c6761ad FF |
400 | debugfs_remove(sdata->debugfs.default_multicast_key); |
401 | sdata->debugfs.default_multicast_key = NULL; | |
e9f207f0 | 402 | |
f7e0104c | 403 | if (sdata->default_multicast_key) { |
40b275b6 JB |
404 | key = key_mtx_dereference(sdata->local, |
405 | sdata->default_multicast_key); | |
f7e0104c JB |
406 | sprintf(buf, "../keys/%d", key->debugfs.cnt); |
407 | sdata->debugfs.default_multicast_key = | |
408 | debugfs_create_symlink("default_multicast_key", | |
ddbfe860 | 409 | sdata->vif.debugfs_dir, buf); |
f7e0104c | 410 | } |
e9f207f0 | 411 | } |
e9f207f0 | 412 | |
3cfcf6ac JM |
413 | void ieee80211_debugfs_key_add_mgmt_default(struct ieee80211_sub_if_data *sdata) |
414 | { | |
415 | char buf[50]; | |
416 | struct ieee80211_key *key; | |
417 | ||
ddbfe860 | 418 | if (!sdata->vif.debugfs_dir) |
3cfcf6ac JM |
419 | return; |
420 | ||
40b275b6 JB |
421 | key = key_mtx_dereference(sdata->local, |
422 | sdata->default_mgmt_key); | |
3cfcf6ac JM |
423 | if (key) { |
424 | sprintf(buf, "../keys/%d", key->debugfs.cnt); | |
7bcfaf2f | 425 | sdata->debugfs.default_mgmt_key = |
3cfcf6ac | 426 | debugfs_create_symlink("default_mgmt_key", |
ddbfe860 | 427 | sdata->vif.debugfs_dir, buf); |
3cfcf6ac JM |
428 | } else |
429 | ieee80211_debugfs_key_remove_mgmt_default(sdata); | |
430 | } | |
431 | ||
432 | void ieee80211_debugfs_key_remove_mgmt_default(struct ieee80211_sub_if_data *sdata) | |
433 | { | |
434 | if (!sdata) | |
435 | return; | |
436 | ||
7bcfaf2f JB |
437 | debugfs_remove(sdata->debugfs.default_mgmt_key); |
438 | sdata->debugfs.default_mgmt_key = NULL; | |
3cfcf6ac JM |
439 | } |
440 | ||
e9f207f0 JB |
441 | void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key, |
442 | struct sta_info *sta) | |
443 | { | |
444 | debugfs_remove(key->debugfs.stalink); | |
445 | key->debugfs.stalink = NULL; | |
446 | } |