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b453872c JG |
1 | /****************************************************************************** |
2 | ||
ebeaddcc | 3 | Copyright(c) 2004-2005 Intel Corporation. All rights reserved. |
b453872c JG |
4 | |
5 | Portions of this file are based on the WEP enablement code provided by the | |
6 | Host AP project hostap-drivers v0.1.3 | |
7 | Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen | |
85d32e7b JM |
8 | <j@w1.fi> |
9 | Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi> | |
b453872c JG |
10 | |
11 | This program is free software; you can redistribute it and/or modify it | |
12 | under the terms of version 2 of the GNU General Public License as | |
13 | published by the Free Software Foundation. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, but WITHOUT | |
16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
18 | more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License along with | |
21 | this program; if not, write to the Free Software Foundation, Inc., 59 | |
22 | Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
23 | ||
24 | The full GNU General Public License is included in this distribution in the | |
25 | file called LICENSE. | |
26 | ||
27 | Contact Information: | |
28 | James P. Ketrenos <ipw2100-admin@linux.intel.com> | |
29 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | ||
31 | ******************************************************************************/ | |
bbeec90b | 32 | |
b453872c JG |
33 | #include <linux/kmod.h> |
34 | #include <linux/module.h> | |
42e349fd | 35 | #include <linux/jiffies.h> |
b453872c JG |
36 | |
37 | #include <net/ieee80211.h> | |
bbeec90b JG |
38 | #include <linux/wireless.h> |
39 | ||
b453872c JG |
40 | static const char *ieee80211_modes[] = { |
41 | "?", "a", "b", "ab", "g", "ag", "bg", "abg" | |
42 | }; | |
43 | ||
44 | #define MAX_CUSTOM_LEN 64 | |
d94606e0 | 45 | static char *ieee80211_translate_scan(struct ieee80211_device *ieee, |
0edd5b44 | 46 | char *start, char *stop, |
b453872c JG |
47 | struct ieee80211_network *network) |
48 | { | |
49 | char custom[MAX_CUSTOM_LEN]; | |
50 | char *p; | |
51 | struct iw_event iwe; | |
52 | int i, j; | |
09593047 ZY |
53 | char *current_val; /* For rates */ |
54 | u8 rate; | |
b453872c JG |
55 | |
56 | /* First entry *MUST* be the AP MAC address */ | |
57 | iwe.cmd = SIOCGIWAP; | |
58 | iwe.u.ap_addr.sa_family = ARPHRD_ETHER; | |
59 | memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN); | |
60 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_ADDR_LEN); | |
61 | ||
62 | /* Remaining entries will be displayed in the order we provide them */ | |
63 | ||
64 | /* Add the ESSID */ | |
65 | iwe.cmd = SIOCGIWESSID; | |
66 | iwe.u.data.flags = 1; | |
67 | if (network->flags & NETWORK_EMPTY_ESSID) { | |
68 | iwe.u.data.length = sizeof("<hidden>"); | |
69 | start = iwe_stream_add_point(start, stop, &iwe, "<hidden>"); | |
70 | } else { | |
0edd5b44 | 71 | iwe.u.data.length = min(network->ssid_len, (u8) 32); |
b453872c JG |
72 | start = iwe_stream_add_point(start, stop, &iwe, network->ssid); |
73 | } | |
74 | ||
75 | /* Add the protocol name */ | |
76 | iwe.cmd = SIOCGIWNAME; | |
0edd5b44 JG |
77 | snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s", |
78 | ieee80211_modes[network->mode]); | |
b453872c JG |
79 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_CHAR_LEN); |
80 | ||
0edd5b44 JG |
81 | /* Add mode */ |
82 | iwe.cmd = SIOCGIWMODE; | |
83 | if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { | |
1b5cca3a | 84 | if (network->capability & WLAN_CAPABILITY_ESS) |
b453872c JG |
85 | iwe.u.mode = IW_MODE_MASTER; |
86 | else | |
87 | iwe.u.mode = IW_MODE_ADHOC; | |
88 | ||
0edd5b44 | 89 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_UINT_LEN); |
b453872c JG |
90 | } |
91 | ||
93afe3da | 92 | /* Add channel and frequency */ |
b453872c | 93 | iwe.cmd = SIOCGIWFREQ; |
b453872c JG |
94 | iwe.u.freq.m = network->channel; |
95 | iwe.u.freq.e = 0; | |
96 | iwe.u.freq.i = 0; | |
97 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN); | |
98 | ||
93afe3da LF |
99 | iwe.u.freq.m = ieee80211_channel_to_freq(ieee, network->channel); |
100 | iwe.u.freq.e = 6; | |
101 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_FREQ_LEN); | |
102 | ||
b453872c JG |
103 | /* Add encryption capability */ |
104 | iwe.cmd = SIOCGIWENCODE; | |
105 | if (network->capability & WLAN_CAPABILITY_PRIVACY) | |
106 | iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
107 | else | |
108 | iwe.u.data.flags = IW_ENCODE_DISABLED; | |
109 | iwe.u.data.length = 0; | |
110 | start = iwe_stream_add_point(start, stop, &iwe, network->ssid); | |
111 | ||
112 | /* Add basic and extended rates */ | |
09593047 ZY |
113 | /* Rate : stuffing multiple values in a single event require a bit |
114 | * more of magic - Jean II */ | |
115 | current_val = start + IW_EV_LCP_LEN; | |
116 | iwe.cmd = SIOCGIWRATE; | |
117 | /* Those two flags are ignored... */ | |
118 | iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; | |
119 | ||
0edd5b44 | 120 | for (i = 0, j = 0; i < network->rates_len;) { |
b453872c JG |
121 | if (j < network->rates_ex_len && |
122 | ((network->rates_ex[j] & 0x7F) < | |
123 | (network->rates[i] & 0x7F))) | |
124 | rate = network->rates_ex[j++] & 0x7F; | |
125 | else | |
126 | rate = network->rates[i++] & 0x7F; | |
09593047 ZY |
127 | /* Bit rate given in 500 kb/s units (+ 0x80) */ |
128 | iwe.u.bitrate.value = ((rate & 0x7f) * 500000); | |
129 | /* Add new value to event */ | |
130 | current_val = iwe_stream_add_value(start, current_val, stop, &iwe, IW_EV_PARAM_LEN); | |
b453872c JG |
131 | } |
132 | for (; j < network->rates_ex_len; j++) { | |
133 | rate = network->rates_ex[j] & 0x7F; | |
09593047 ZY |
134 | /* Bit rate given in 500 kb/s units (+ 0x80) */ |
135 | iwe.u.bitrate.value = ((rate & 0x7f) * 500000); | |
136 | /* Add new value to event */ | |
137 | current_val = iwe_stream_add_value(start, current_val, stop, &iwe, IW_EV_PARAM_LEN); | |
b453872c | 138 | } |
09593047 ZY |
139 | /* Check if we added any rate */ |
140 | if((current_val - start) > IW_EV_LCP_LEN) | |
141 | start = current_val; | |
b453872c JG |
142 | |
143 | /* Add quality statistics */ | |
b453872c | 144 | iwe.cmd = IWEVQUAL; |
b1b508e1 JK |
145 | iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | |
146 | IW_QUAL_NOISE_UPDATED; | |
147 | ||
148 | if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) { | |
149 | iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID | | |
150 | IW_QUAL_LEVEL_INVALID; | |
151 | iwe.u.qual.qual = 0; | |
b1b508e1 | 152 | } else { |
757d18fa JB |
153 | if (ieee->perfect_rssi == ieee->worst_rssi) |
154 | iwe.u.qual.qual = 100; | |
155 | else | |
156 | iwe.u.qual.qual = | |
157 | (100 * | |
158 | (ieee->perfect_rssi - ieee->worst_rssi) * | |
159 | (ieee->perfect_rssi - ieee->worst_rssi) - | |
160 | (ieee->perfect_rssi - network->stats.rssi) * | |
161 | (15 * (ieee->perfect_rssi - ieee->worst_rssi) + | |
81f87520 JK |
162 | 62 * (ieee->perfect_rssi - |
163 | network->stats.rssi))) / | |
164 | ((ieee->perfect_rssi - | |
165 | ieee->worst_rssi) * (ieee->perfect_rssi - | |
166 | ieee->worst_rssi)); | |
b1b508e1 JK |
167 | if (iwe.u.qual.qual > 100) |
168 | iwe.u.qual.qual = 100; | |
169 | else if (iwe.u.qual.qual < 1) | |
170 | iwe.u.qual.qual = 0; | |
171 | } | |
172 | ||
173 | if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) { | |
b453872c | 174 | iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID; |
b1b508e1 JK |
175 | iwe.u.qual.noise = 0; |
176 | } else { | |
177 | iwe.u.qual.noise = network->stats.noise; | |
178 | } | |
b453872c | 179 | |
7bd64366 ZY |
180 | if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL)) { |
181 | iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID; | |
182 | iwe.u.qual.level = 0; | |
183 | } else { | |
184 | iwe.u.qual.level = network->stats.signal; | |
185 | } | |
186 | ||
b453872c JG |
187 | start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN); |
188 | ||
189 | iwe.cmd = IWEVCUSTOM; | |
190 | p = custom; | |
191 | ||
192 | iwe.u.data.length = p - custom; | |
193 | if (iwe.u.data.length) | |
194 | start = iwe_stream_add_point(start, stop, &iwe, custom); | |
195 | ||
47168082 | 196 | memset(&iwe, 0, sizeof(iwe)); |
20d64713 | 197 | if (network->wpa_ie_len) { |
47168082 ZY |
198 | char buf[MAX_WPA_IE_LEN]; |
199 | memcpy(buf, network->wpa_ie, network->wpa_ie_len); | |
200 | iwe.cmd = IWEVGENIE; | |
201 | iwe.u.data.length = network->wpa_ie_len; | |
b453872c JG |
202 | start = iwe_stream_add_point(start, stop, &iwe, buf); |
203 | } | |
204 | ||
47168082 | 205 | memset(&iwe, 0, sizeof(iwe)); |
20d64713 | 206 | if (network->rsn_ie_len) { |
47168082 ZY |
207 | char buf[MAX_WPA_IE_LEN]; |
208 | memcpy(buf, network->rsn_ie, network->rsn_ie_len); | |
209 | iwe.cmd = IWEVGENIE; | |
210 | iwe.u.data.length = network->rsn_ie_len; | |
b453872c JG |
211 | start = iwe_stream_add_point(start, stop, &iwe, buf); |
212 | } | |
213 | ||
214 | /* Add EXTRA: Age to display seconds since last beacon/probe response | |
215 | * for given network. */ | |
216 | iwe.cmd = IWEVCUSTOM; | |
217 | p = custom; | |
218 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), | |
42e349fd JK |
219 | " Last beacon: %dms ago", |
220 | jiffies_to_msecs(jiffies - network->last_scanned)); | |
b453872c JG |
221 | iwe.u.data.length = p - custom; |
222 | if (iwe.u.data.length) | |
223 | start = iwe_stream_add_point(start, stop, &iwe, custom); | |
224 | ||
7bd64366 ZY |
225 | /* Add spectrum management information */ |
226 | iwe.cmd = -1; | |
227 | p = custom; | |
228 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: "); | |
229 | ||
230 | if (ieee80211_get_channel_flags(ieee, network->channel) & | |
231 | IEEE80211_CH_INVALID) { | |
232 | iwe.cmd = IWEVCUSTOM; | |
233 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID "); | |
234 | } | |
235 | ||
236 | if (ieee80211_get_channel_flags(ieee, network->channel) & | |
237 | IEEE80211_CH_RADAR_DETECT) { | |
238 | iwe.cmd = IWEVCUSTOM; | |
239 | p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS "); | |
240 | } | |
241 | ||
242 | if (iwe.cmd == IWEVCUSTOM) { | |
243 | iwe.u.data.length = p - custom; | |
244 | start = iwe_stream_add_point(start, stop, &iwe, custom); | |
245 | } | |
246 | ||
b453872c JG |
247 | return start; |
248 | } | |
249 | ||
55cd94aa ZY |
250 | #define SCAN_ITEM_SIZE 128 |
251 | ||
b453872c JG |
252 | int ieee80211_wx_get_scan(struct ieee80211_device *ieee, |
253 | struct iw_request_info *info, | |
254 | union iwreq_data *wrqu, char *extra) | |
255 | { | |
256 | struct ieee80211_network *network; | |
257 | unsigned long flags; | |
55cd94aa | 258 | int err = 0; |
b453872c JG |
259 | |
260 | char *ev = extra; | |
55cd94aa | 261 | char *stop = ev + wrqu->data.length; |
b453872c JG |
262 | int i = 0; |
263 | ||
264 | IEEE80211_DEBUG_WX("Getting scan\n"); | |
265 | ||
266 | spin_lock_irqsave(&ieee->lock, flags); | |
267 | ||
268 | list_for_each_entry(network, &ieee->network_list, list) { | |
269 | i++; | |
55cd94aa ZY |
270 | if (stop - ev < SCAN_ITEM_SIZE) { |
271 | err = -E2BIG; | |
272 | break; | |
273 | } | |
274 | ||
b453872c JG |
275 | if (ieee->scan_age == 0 || |
276 | time_after(network->last_scanned + ieee->scan_age, jiffies)) | |
d94606e0 | 277 | ev = ieee80211_translate_scan(ieee, ev, stop, network); |
b453872c | 278 | else |
0edd5b44 | 279 | IEEE80211_DEBUG_SCAN("Not showing network '%s (" |
42e349fd | 280 | MAC_FMT ")' due to age (%dms).\n", |
0edd5b44 JG |
281 | escape_essid(network->ssid, |
282 | network->ssid_len), | |
283 | MAC_ARG(network->bssid), | |
42e349fd JK |
284 | jiffies_to_msecs(jiffies - |
285 | network-> | |
286 | last_scanned)); | |
b453872c JG |
287 | } |
288 | ||
289 | spin_unlock_irqrestore(&ieee->lock, flags); | |
290 | ||
0edd5b44 | 291 | wrqu->data.length = ev - extra; |
b453872c JG |
292 | wrqu->data.flags = 0; |
293 | ||
294 | IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i); | |
295 | ||
55cd94aa | 296 | return err; |
b453872c JG |
297 | } |
298 | ||
299 | int ieee80211_wx_set_encode(struct ieee80211_device *ieee, | |
300 | struct iw_request_info *info, | |
301 | union iwreq_data *wrqu, char *keybuf) | |
302 | { | |
303 | struct iw_point *erq = &(wrqu->encoding); | |
304 | struct net_device *dev = ieee->dev; | |
305 | struct ieee80211_security sec = { | |
306 | .flags = 0 | |
307 | }; | |
308 | int i, key, key_provided, len; | |
309 | struct ieee80211_crypt_data **crypt; | |
a4bf26f3 | 310 | int host_crypto = ieee->host_encrypt || ieee->host_decrypt || ieee->host_build_iv; |
b453872c JG |
311 | |
312 | IEEE80211_DEBUG_WX("SET_ENCODE\n"); | |
313 | ||
314 | key = erq->flags & IW_ENCODE_INDEX; | |
315 | if (key) { | |
316 | if (key > WEP_KEYS) | |
317 | return -EINVAL; | |
318 | key--; | |
319 | key_provided = 1; | |
320 | } else { | |
321 | key_provided = 0; | |
322 | key = ieee->tx_keyidx; | |
323 | } | |
324 | ||
325 | IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ? | |
326 | "provided" : "default"); | |
327 | ||
328 | crypt = &ieee->crypt[key]; | |
329 | ||
330 | if (erq->flags & IW_ENCODE_DISABLED) { | |
331 | if (key_provided && *crypt) { | |
332 | IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n", | |
333 | key); | |
334 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
335 | } else | |
336 | IEEE80211_DEBUG_WX("Disabling encryption.\n"); | |
337 | ||
338 | /* Check all the keys to see if any are still configured, | |
339 | * and if no key index was provided, de-init them all */ | |
340 | for (i = 0; i < WEP_KEYS; i++) { | |
341 | if (ieee->crypt[i] != NULL) { | |
342 | if (key_provided) | |
343 | break; | |
0edd5b44 JG |
344 | ieee80211_crypt_delayed_deinit(ieee, |
345 | &ieee->crypt[i]); | |
b453872c JG |
346 | } |
347 | } | |
348 | ||
349 | if (i == WEP_KEYS) { | |
350 | sec.enabled = 0; | |
f1bf6638 | 351 | sec.encrypt = 0; |
b453872c | 352 | sec.level = SEC_LEVEL_0; |
259bf1fd | 353 | sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT; |
b453872c JG |
354 | } |
355 | ||
356 | goto done; | |
357 | } | |
358 | ||
b453872c | 359 | sec.enabled = 1; |
f1bf6638 | 360 | sec.encrypt = 1; |
259bf1fd | 361 | sec.flags |= SEC_ENABLED | SEC_ENCRYPT; |
b453872c JG |
362 | |
363 | if (*crypt != NULL && (*crypt)->ops != NULL && | |
364 | strcmp((*crypt)->ops->name, "WEP") != 0) { | |
365 | /* changing to use WEP; deinit previously used algorithm | |
366 | * on this key */ | |
367 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
368 | } | |
369 | ||
f1bf6638 | 370 | if (*crypt == NULL && host_crypto) { |
b453872c JG |
371 | struct ieee80211_crypt_data *new_crypt; |
372 | ||
373 | /* take WEP into use */ | |
0da974f4 | 374 | new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data), |
b453872c JG |
375 | GFP_KERNEL); |
376 | if (new_crypt == NULL) | |
377 | return -ENOMEM; | |
b453872c JG |
378 | new_crypt->ops = ieee80211_get_crypto_ops("WEP"); |
379 | if (!new_crypt->ops) { | |
380 | request_module("ieee80211_crypt_wep"); | |
381 | new_crypt->ops = ieee80211_get_crypto_ops("WEP"); | |
382 | } | |
383 | ||
384 | if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) | |
6eb6edf0 | 385 | new_crypt->priv = new_crypt->ops->init(key); |
b453872c JG |
386 | |
387 | if (!new_crypt->ops || !new_crypt->priv) { | |
388 | kfree(new_crypt); | |
389 | new_crypt = NULL; | |
390 | ||
391 | printk(KERN_WARNING "%s: could not initialize WEP: " | |
0edd5b44 | 392 | "load module ieee80211_crypt_wep\n", dev->name); |
b453872c JG |
393 | return -EOPNOTSUPP; |
394 | } | |
395 | *crypt = new_crypt; | |
396 | } | |
397 | ||
398 | /* If a new key was provided, set it up */ | |
399 | if (erq->length > 0) { | |
400 | len = erq->length <= 5 ? 5 : 13; | |
401 | memcpy(sec.keys[key], keybuf, erq->length); | |
402 | if (len > erq->length) | |
403 | memset(sec.keys[key] + erq->length, 0, | |
404 | len - erq->length); | |
405 | IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n", | |
406 | key, escape_essid(sec.keys[key], len), | |
407 | erq->length, len); | |
408 | sec.key_sizes[key] = len; | |
f1bf6638 JK |
409 | if (*crypt) |
410 | (*crypt)->ops->set_key(sec.keys[key], len, NULL, | |
411 | (*crypt)->priv); | |
b453872c JG |
412 | sec.flags |= (1 << key); |
413 | /* This ensures a key will be activated if no key is | |
414 | * explicitely set */ | |
415 | if (key == sec.active_key) | |
416 | sec.flags |= SEC_ACTIVE_KEY; | |
f1bf6638 | 417 | |
b453872c | 418 | } else { |
f1bf6638 JK |
419 | if (host_crypto) { |
420 | len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN, | |
421 | NULL, (*crypt)->priv); | |
422 | if (len == 0) { | |
423 | /* Set a default key of all 0 */ | |
424 | IEEE80211_DEBUG_WX("Setting key %d to all " | |
425 | "zero.\n", key); | |
426 | memset(sec.keys[key], 0, 13); | |
427 | (*crypt)->ops->set_key(sec.keys[key], 13, NULL, | |
428 | (*crypt)->priv); | |
429 | sec.key_sizes[key] = 13; | |
430 | sec.flags |= (1 << key); | |
431 | } | |
b453872c | 432 | } |
b453872c JG |
433 | /* No key data - just set the default TX key index */ |
434 | if (key_provided) { | |
f1bf6638 JK |
435 | IEEE80211_DEBUG_WX("Setting key %d to default Tx " |
436 | "key.\n", key); | |
b453872c JG |
437 | ieee->tx_keyidx = key; |
438 | sec.active_key = key; | |
439 | sec.flags |= SEC_ACTIVE_KEY; | |
440 | } | |
441 | } | |
7dc888fe JK |
442 | if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) { |
443 | ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED); | |
444 | sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : | |
445 | WLAN_AUTH_SHARED_KEY; | |
446 | sec.flags |= SEC_AUTH_MODE; | |
447 | IEEE80211_DEBUG_WX("Auth: %s\n", | |
448 | sec.auth_mode == WLAN_AUTH_OPEN ? | |
449 | "OPEN" : "SHARED KEY"); | |
450 | } | |
b453872c JG |
451 | |
452 | /* For now we just support WEP, so only set that security level... | |
453 | * TODO: When WPA is added this is one place that needs to change */ | |
454 | sec.flags |= SEC_LEVEL; | |
0edd5b44 | 455 | sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */ |
e0d369d1 | 456 | sec.encode_alg[key] = SEC_ALG_WEP; |
b453872c | 457 | |
259bf1fd | 458 | done: |
b453872c JG |
459 | if (ieee->set_security) |
460 | ieee->set_security(dev, &sec); | |
461 | ||
462 | /* Do not reset port if card is in Managed mode since resetting will | |
463 | * generate new IEEE 802.11 authentication which may end up in looping | |
464 | * with IEEE 802.1X. If your hardware requires a reset after WEP | |
465 | * configuration (for example... Prism2), implement the reset_port in | |
466 | * the callbacks structures used to initialize the 802.11 stack. */ | |
467 | if (ieee->reset_on_keychange && | |
468 | ieee->iw_mode != IW_MODE_INFRA && | |
469 | ieee->reset_port && ieee->reset_port(dev)) { | |
470 | printk(KERN_DEBUG "%s: reset_port failed\n", dev->name); | |
471 | return -EINVAL; | |
472 | } | |
473 | return 0; | |
474 | } | |
475 | ||
476 | int ieee80211_wx_get_encode(struct ieee80211_device *ieee, | |
477 | struct iw_request_info *info, | |
478 | union iwreq_data *wrqu, char *keybuf) | |
479 | { | |
480 | struct iw_point *erq = &(wrqu->encoding); | |
481 | int len, key; | |
482 | struct ieee80211_crypt_data *crypt; | |
f1bf6638 | 483 | struct ieee80211_security *sec = &ieee->sec; |
b453872c JG |
484 | |
485 | IEEE80211_DEBUG_WX("GET_ENCODE\n"); | |
486 | ||
487 | key = erq->flags & IW_ENCODE_INDEX; | |
488 | if (key) { | |
489 | if (key > WEP_KEYS) | |
490 | return -EINVAL; | |
491 | key--; | |
492 | } else | |
493 | key = ieee->tx_keyidx; | |
494 | ||
495 | crypt = ieee->crypt[key]; | |
496 | erq->flags = key + 1; | |
497 | ||
f1bf6638 | 498 | if (!sec->enabled) { |
b453872c JG |
499 | erq->length = 0; |
500 | erq->flags |= IW_ENCODE_DISABLED; | |
501 | return 0; | |
502 | } | |
503 | ||
f1bf6638 JK |
504 | len = sec->key_sizes[key]; |
505 | memcpy(keybuf, sec->keys[key], len); | |
b453872c | 506 | |
6274115c | 507 | erq->length = len; |
b453872c JG |
508 | erq->flags |= IW_ENCODE_ENABLED; |
509 | ||
510 | if (ieee->open_wep) | |
511 | erq->flags |= IW_ENCODE_OPEN; | |
512 | else | |
513 | erq->flags |= IW_ENCODE_RESTRICTED; | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
e0d369d1 JK |
518 | int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee, |
519 | struct iw_request_info *info, | |
520 | union iwreq_data *wrqu, char *extra) | |
521 | { | |
522 | struct net_device *dev = ieee->dev; | |
523 | struct iw_point *encoding = &wrqu->encoding; | |
524 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
525 | int i, idx, ret = 0; | |
ccd0fda3 | 526 | int group_key = 0; |
e0d369d1 JK |
527 | const char *alg, *module; |
528 | struct ieee80211_crypto_ops *ops; | |
529 | struct ieee80211_crypt_data **crypt; | |
530 | ||
531 | struct ieee80211_security sec = { | |
532 | .flags = 0, | |
533 | }; | |
534 | ||
535 | idx = encoding->flags & IW_ENCODE_INDEX; | |
536 | if (idx) { | |
537 | if (idx < 1 || idx > WEP_KEYS) | |
538 | return -EINVAL; | |
539 | idx--; | |
540 | } else | |
541 | idx = ieee->tx_keyidx; | |
542 | ||
ccd0fda3 | 543 | if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) { |
e0d369d1 | 544 | crypt = &ieee->crypt[idx]; |
ccd0fda3 JK |
545 | group_key = 1; |
546 | } else { | |
e189277a VB |
547 | /* some Cisco APs use idx>0 for unicast in dynamic WEP */ |
548 | if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP) | |
e0d369d1 JK |
549 | return -EINVAL; |
550 | if (ieee->iw_mode == IW_MODE_INFRA) | |
551 | crypt = &ieee->crypt[idx]; | |
552 | else | |
553 | return -EINVAL; | |
554 | } | |
555 | ||
556 | sec.flags |= SEC_ENABLED | SEC_ENCRYPT; | |
557 | if ((encoding->flags & IW_ENCODE_DISABLED) || | |
558 | ext->alg == IW_ENCODE_ALG_NONE) { | |
559 | if (*crypt) | |
560 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
561 | ||
562 | for (i = 0; i < WEP_KEYS; i++) | |
563 | if (ieee->crypt[i] != NULL) | |
564 | break; | |
565 | ||
566 | if (i == WEP_KEYS) { | |
567 | sec.enabled = 0; | |
568 | sec.encrypt = 0; | |
569 | sec.level = SEC_LEVEL_0; | |
570 | sec.flags |= SEC_LEVEL; | |
571 | } | |
572 | goto done; | |
573 | } | |
574 | ||
575 | sec.enabled = 1; | |
576 | sec.encrypt = 1; | |
577 | ||
ccd0fda3 JK |
578 | if (group_key ? !ieee->host_mc_decrypt : |
579 | !(ieee->host_encrypt || ieee->host_decrypt || | |
580 | ieee->host_encrypt_msdu)) | |
e0d369d1 JK |
581 | goto skip_host_crypt; |
582 | ||
583 | switch (ext->alg) { | |
584 | case IW_ENCODE_ALG_WEP: | |
585 | alg = "WEP"; | |
586 | module = "ieee80211_crypt_wep"; | |
587 | break; | |
588 | case IW_ENCODE_ALG_TKIP: | |
589 | alg = "TKIP"; | |
590 | module = "ieee80211_crypt_tkip"; | |
591 | break; | |
592 | case IW_ENCODE_ALG_CCMP: | |
593 | alg = "CCMP"; | |
594 | module = "ieee80211_crypt_ccmp"; | |
595 | break; | |
596 | default: | |
597 | IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n", | |
598 | dev->name, ext->alg); | |
599 | ret = -EINVAL; | |
600 | goto done; | |
601 | } | |
602 | ||
603 | ops = ieee80211_get_crypto_ops(alg); | |
604 | if (ops == NULL) { | |
605 | request_module(module); | |
606 | ops = ieee80211_get_crypto_ops(alg); | |
607 | } | |
608 | if (ops == NULL) { | |
609 | IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n", | |
610 | dev->name, ext->alg); | |
611 | ret = -EINVAL; | |
612 | goto done; | |
613 | } | |
614 | ||
615 | if (*crypt == NULL || (*crypt)->ops != ops) { | |
616 | struct ieee80211_crypt_data *new_crypt; | |
617 | ||
618 | ieee80211_crypt_delayed_deinit(ieee, crypt); | |
619 | ||
0da974f4 | 620 | new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL); |
e0d369d1 JK |
621 | if (new_crypt == NULL) { |
622 | ret = -ENOMEM; | |
623 | goto done; | |
624 | } | |
e0d369d1 JK |
625 | new_crypt->ops = ops; |
626 | if (new_crypt->ops && try_module_get(new_crypt->ops->owner)) | |
6eb6edf0 | 627 | new_crypt->priv = new_crypt->ops->init(idx); |
e0d369d1 JK |
628 | if (new_crypt->priv == NULL) { |
629 | kfree(new_crypt); | |
630 | ret = -EINVAL; | |
631 | goto done; | |
632 | } | |
633 | *crypt = new_crypt; | |
634 | } | |
635 | ||
636 | if (ext->key_len > 0 && (*crypt)->ops->set_key && | |
637 | (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq, | |
638 | (*crypt)->priv) < 0) { | |
639 | IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name); | |
640 | ret = -EINVAL; | |
641 | goto done; | |
642 | } | |
643 | ||
644 | skip_host_crypt: | |
645 | if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { | |
646 | ieee->tx_keyidx = idx; | |
647 | sec.active_key = idx; | |
648 | sec.flags |= SEC_ACTIVE_KEY; | |
649 | } | |
650 | ||
651 | if (ext->alg != IW_ENCODE_ALG_NONE) { | |
652 | memcpy(sec.keys[idx], ext->key, ext->key_len); | |
653 | sec.key_sizes[idx] = ext->key_len; | |
654 | sec.flags |= (1 << idx); | |
655 | if (ext->alg == IW_ENCODE_ALG_WEP) { | |
656 | sec.encode_alg[idx] = SEC_ALG_WEP; | |
657 | sec.flags |= SEC_LEVEL; | |
658 | sec.level = SEC_LEVEL_1; | |
659 | } else if (ext->alg == IW_ENCODE_ALG_TKIP) { | |
660 | sec.encode_alg[idx] = SEC_ALG_TKIP; | |
661 | sec.flags |= SEC_LEVEL; | |
662 | sec.level = SEC_LEVEL_2; | |
663 | } else if (ext->alg == IW_ENCODE_ALG_CCMP) { | |
664 | sec.encode_alg[idx] = SEC_ALG_CCMP; | |
665 | sec.flags |= SEC_LEVEL; | |
666 | sec.level = SEC_LEVEL_3; | |
667 | } | |
ccd0fda3 JK |
668 | /* Don't set sec level for group keys. */ |
669 | if (group_key) | |
670 | sec.flags &= ~SEC_LEVEL; | |
e0d369d1 JK |
671 | } |
672 | done: | |
673 | if (ieee->set_security) | |
674 | ieee->set_security(ieee->dev, &sec); | |
675 | ||
676 | /* | |
677 | * Do not reset port if card is in Managed mode since resetting will | |
678 | * generate new IEEE 802.11 authentication which may end up in looping | |
679 | * with IEEE 802.1X. If your hardware requires a reset after WEP | |
680 | * configuration (for example... Prism2), implement the reset_port in | |
681 | * the callbacks structures used to initialize the 802.11 stack. | |
682 | */ | |
683 | if (ieee->reset_on_keychange && | |
684 | ieee->iw_mode != IW_MODE_INFRA && | |
685 | ieee->reset_port && ieee->reset_port(dev)) { | |
686 | IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name); | |
687 | return -EINVAL; | |
688 | } | |
689 | ||
690 | return ret; | |
691 | } | |
692 | ||
693 | int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee, | |
694 | struct iw_request_info *info, | |
695 | union iwreq_data *wrqu, char *extra) | |
696 | { | |
697 | struct iw_point *encoding = &wrqu->encoding; | |
698 | struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; | |
699 | struct ieee80211_security *sec = &ieee->sec; | |
700 | int idx, max_key_len; | |
701 | ||
702 | max_key_len = encoding->length - sizeof(*ext); | |
703 | if (max_key_len < 0) | |
704 | return -EINVAL; | |
705 | ||
706 | idx = encoding->flags & IW_ENCODE_INDEX; | |
707 | if (idx) { | |
708 | if (idx < 1 || idx > WEP_KEYS) | |
709 | return -EINVAL; | |
710 | idx--; | |
711 | } else | |
712 | idx = ieee->tx_keyidx; | |
713 | ||
e189277a VB |
714 | if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY && |
715 | ext->alg != IW_ENCODE_ALG_WEP) | |
e0d369d1 JK |
716 | if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA) |
717 | return -EINVAL; | |
718 | ||
719 | encoding->flags = idx + 1; | |
720 | memset(ext, 0, sizeof(*ext)); | |
721 | ||
722 | if (!sec->enabled) { | |
723 | ext->alg = IW_ENCODE_ALG_NONE; | |
724 | ext->key_len = 0; | |
725 | encoding->flags |= IW_ENCODE_DISABLED; | |
726 | } else { | |
727 | if (sec->encode_alg[idx] == SEC_ALG_WEP) | |
728 | ext->alg = IW_ENCODE_ALG_WEP; | |
729 | else if (sec->encode_alg[idx] == SEC_ALG_TKIP) | |
730 | ext->alg = IW_ENCODE_ALG_TKIP; | |
731 | else if (sec->encode_alg[idx] == SEC_ALG_CCMP) | |
732 | ext->alg = IW_ENCODE_ALG_CCMP; | |
733 | else | |
734 | return -EINVAL; | |
735 | ||
736 | ext->key_len = sec->key_sizes[idx]; | |
737 | memcpy(ext->key, sec->keys[idx], ext->key_len); | |
738 | encoding->flags |= IW_ENCODE_ENABLED; | |
739 | if (ext->key_len && | |
740 | (ext->alg == IW_ENCODE_ALG_TKIP || | |
741 | ext->alg == IW_ENCODE_ALG_CCMP)) | |
742 | ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID; | |
743 | ||
744 | } | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
dd5eeb46 LF |
749 | int ieee80211_wx_set_auth(struct net_device *dev, |
750 | struct iw_request_info *info, | |
751 | union iwreq_data *wrqu, | |
752 | char *extra) | |
753 | { | |
754 | struct ieee80211_device *ieee = netdev_priv(dev); | |
755 | unsigned long flags; | |
756 | int err = 0; | |
757 | ||
758 | spin_lock_irqsave(&ieee->lock, flags); | |
64265651 | 759 | |
dd5eeb46 LF |
760 | switch (wrqu->param.flags & IW_AUTH_INDEX) { |
761 | case IW_AUTH_WPA_VERSION: | |
762 | case IW_AUTH_CIPHER_PAIRWISE: | |
763 | case IW_AUTH_CIPHER_GROUP: | |
764 | case IW_AUTH_KEY_MGMT: | |
765 | /* | |
766 | * Host AP driver does not use these parameters and allows | |
767 | * wpa_supplicant to control them internally. | |
768 | */ | |
769 | break; | |
770 | case IW_AUTH_TKIP_COUNTERMEASURES: | |
771 | break; /* FIXME */ | |
772 | case IW_AUTH_DROP_UNENCRYPTED: | |
773 | ieee->drop_unencrypted = !!wrqu->param.value; | |
774 | break; | |
775 | case IW_AUTH_80211_AUTH_ALG: | |
776 | break; /* FIXME */ | |
777 | case IW_AUTH_WPA_ENABLED: | |
778 | ieee->privacy_invoked = ieee->wpa_enabled = !!wrqu->param.value; | |
779 | break; | |
780 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
781 | ieee->ieee802_1x = !!wrqu->param.value; | |
782 | break; | |
783 | case IW_AUTH_PRIVACY_INVOKED: | |
784 | ieee->privacy_invoked = !!wrqu->param.value; | |
785 | break; | |
786 | default: | |
787 | err = -EOPNOTSUPP; | |
788 | break; | |
789 | } | |
790 | spin_unlock_irqrestore(&ieee->lock, flags); | |
791 | return err; | |
792 | } | |
793 | ||
794 | int ieee80211_wx_get_auth(struct net_device *dev, | |
795 | struct iw_request_info *info, | |
796 | union iwreq_data *wrqu, | |
797 | char *extra) | |
798 | { | |
799 | struct ieee80211_device *ieee = netdev_priv(dev); | |
800 | unsigned long flags; | |
801 | int err = 0; | |
802 | ||
803 | spin_lock_irqsave(&ieee->lock, flags); | |
64265651 | 804 | |
dd5eeb46 LF |
805 | switch (wrqu->param.flags & IW_AUTH_INDEX) { |
806 | case IW_AUTH_WPA_VERSION: | |
807 | case IW_AUTH_CIPHER_PAIRWISE: | |
808 | case IW_AUTH_CIPHER_GROUP: | |
809 | case IW_AUTH_KEY_MGMT: | |
810 | case IW_AUTH_TKIP_COUNTERMEASURES: /* FIXME */ | |
811 | case IW_AUTH_80211_AUTH_ALG: /* FIXME */ | |
812 | /* | |
813 | * Host AP driver does not use these parameters and allows | |
814 | * wpa_supplicant to control them internally. | |
815 | */ | |
816 | err = -EOPNOTSUPP; | |
817 | break; | |
818 | case IW_AUTH_DROP_UNENCRYPTED: | |
819 | wrqu->param.value = ieee->drop_unencrypted; | |
820 | break; | |
821 | case IW_AUTH_WPA_ENABLED: | |
822 | wrqu->param.value = ieee->wpa_enabled; | |
823 | break; | |
824 | case IW_AUTH_RX_UNENCRYPTED_EAPOL: | |
825 | wrqu->param.value = ieee->ieee802_1x; | |
826 | break; | |
827 | default: | |
828 | err = -EOPNOTSUPP; | |
829 | break; | |
830 | } | |
831 | spin_unlock_irqrestore(&ieee->lock, flags); | |
832 | return err; | |
833 | } | |
834 | ||
e0d369d1 JK |
835 | EXPORT_SYMBOL(ieee80211_wx_set_encodeext); |
836 | EXPORT_SYMBOL(ieee80211_wx_get_encodeext); | |
e0d369d1 | 837 | |
b453872c JG |
838 | EXPORT_SYMBOL(ieee80211_wx_get_scan); |
839 | EXPORT_SYMBOL(ieee80211_wx_set_encode); | |
840 | EXPORT_SYMBOL(ieee80211_wx_get_encode); | |
dd5eeb46 LF |
841 | |
842 | EXPORT_SYMBOL_GPL(ieee80211_wx_set_auth); | |
843 | EXPORT_SYMBOL_GPL(ieee80211_wx_get_auth); |