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Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-block.git] / drivers / staging / rtl8192u / ieee80211 / ieee80211_wx.c
CommitLineData
21baa36d 1// SPDX-License-Identifier: GPL-2.0
8fc8598e
JC		 2/******************************************************************************
3
4 Copyright(c) 2004 Intel Corporation. All rights reserved.
5
6 Portions of this file are based on the WEP enablement code provided by the
7 Host AP project hostap-drivers v0.1.3
8 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
9 <jkmaline@cc.hut.fi>
10 Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
11
8fc8598e
JC		 12 Contact Information:
13 James P. Ketrenos <ipw2100-admin@linux.intel.com>
14 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
15
16******************************************************************************/
17#include <linux/wireless.h>
8fc8598e 18#include <linux/kmod.h>
5a0e3ad6 19#include <linux/slab.h>
8fc8598e
JC		 20#include <linux/module.h>
21
22#include "ieee80211.h"
8fc8598e
JC		 23struct modes_unit {
24 char *mode_string;
25 int mode_size;
26};
6831574c 27static struct modes_unit ieee80211_modes[] = {
0b4ef0a6
GD		 28 {"a", 1},
29 {"b", 1},
30 {"g", 1},
31 {"?", 1},
32 {"N-24G", 5},
33 {"N-5G", 4},
8fc8598e
JC		 34};
35
8fc8598e 36#define iwe_stream_add_event_rsl iwe_stream_add_event
8fc8598e
JC		 37
38#define MAX_CUSTOM_LEN 64
39static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
e406322b 40 char *start, char *stop,
8fc8598e 41 struct ieee80211_network *network,
e406322b 42 struct iw_request_info *info)
8fc8598e
JC		 43{
44 char custom[MAX_CUSTOM_LEN];
45 char proto_name[IFNAMSIZ];
46 char *pname = proto_name;
47 char *p;
48 struct iw_event iwe;
49 int i, j;
50 u16 max_rate, rate;
51 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
52
53 /* First entry *MUST* be the AP MAC address */
54 iwe.cmd = SIOCGIWAP;
55 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
56 memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
8fc8598e 57 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_ADDR_LEN);
8fc8598e
JC		 58 /* Remaining entries will be displayed in the order we provide them */
59
60 /* Add the ESSID */
61 iwe.cmd = SIOCGIWESSID;
62 iwe.u.data.flags = 1;
63// if (network->flags & NETWORK_EMPTY_ESSID) {
64 if (network->ssid_len == 0) {
65 iwe.u.data.length = sizeof("<hidden>");
e406322b 66 start = iwe_stream_add_point(info, start, stop, &iwe, "<hidden>");
e406322b 67 } else {
8fc8598e 68 iwe.u.data.length = min(network->ssid_len, (u8)32);
e406322b 69 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
e406322b 70 }
8fc8598e
JC		 71 /* Add the protocol name */
72 iwe.cmd = SIOCGIWNAME;
f401441d 73 for (i = 0; i < ARRAY_SIZE(ieee80211_modes); i++) {
8dd43050 74 if (network->mode & BIT(i)) {
f401441d
SB		 75 sprintf(pname, ieee80211_modes[i].mode_string, ieee80211_modes[i].mode_size);
76 pname += ieee80211_modes[i].mode_size;
8fc8598e
JC		 77 }
78 }
79 *pname = '\0';
80 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
e406322b 81 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_CHAR_LEN);
e406322b
MCC		 82 /* Add mode */
83 iwe.cmd = SIOCGIWMODE;
84 if (network->capability &
8fc8598e
JC		 85 (WLAN_CAPABILITY_BSS | WLAN_CAPABILITY_IBSS)) {
86 if (network->capability & WLAN_CAPABILITY_BSS)
87 iwe.u.mode = IW_MODE_MASTER;
88 else
89 iwe.u.mode = IW_MODE_ADHOC;
e406322b 90 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_UINT_LEN);
e406322b 91 }
8fc8598e 92
e406322b 93 /* Add frequency/channel */
8fc8598e
JC		 94 iwe.cmd = SIOCGIWFREQ;
95/* iwe.u.freq.m = ieee80211_frequency(network->channel, network->mode);
96 iwe.u.freq.e = 3; */
97 iwe.u.freq.m = network->channel;
98 iwe.u.freq.e = 0;
99 iwe.u.freq.i = 0;
e406322b 100 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_FREQ_LEN);
8fc8598e
JC		 101 /* Add encryption capability */
102 iwe.cmd = SIOCGIWENCODE;
103 if (network->capability & WLAN_CAPABILITY_PRIVACY)
104 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
105 else
106 iwe.u.data.flags = IW_ENCODE_DISABLED;
107 iwe.u.data.length = 0;
e406322b 108 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
8fc8598e
JC		 109 /* Add basic and extended rates */
110 max_rate = 0;
111 p = custom;
88b3673e 112 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
8fc8598e
JC		 113 for (i = 0, j = 0; i < network->rates_len; ) {
114 if (j < network->rates_ex_len &&
115 ((network->rates_ex[j] & 0x7F) <
116 (network->rates[i] & 0x7F)))
117 rate = network->rates_ex[j++] & 0x7F;
118 else
119 rate = network->rates[i++] & 0x7F;
120 if (rate > max_rate)
121 max_rate = rate;
88b3673e 122 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
8fc8598e
JC		 123 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
124 }
125 for (; j < network->rates_ex_len; j++) {
126 rate = network->rates_ex[j] & 0x7F;
88b3673e 127 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
8fc8598e
JC		 128 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
129 if (rate > max_rate)
130 max_rate = rate;
131 }
132
ee16d7d3 133 if (network->mode >= IEEE_N_24G) /* add N rate here */ {
2c6d0ee3 134 struct ht_capability_ele *ht_cap = NULL;
8fc8598e
JC		 135 bool is40M = false, isShortGI = false;
136 u8 max_mcs = 0;
137 if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4))
2c6d0ee3 138 ht_cap = (struct ht_capability_ele *)&network->bssht.bdHTCapBuf[4];
8fc8598e 139 else
2c6d0ee3 140 ht_cap = (struct ht_capability_ele *)&network->bssht.bdHTCapBuf[0];
f401441d
SB		 141 is40M = (ht_cap->ChlWidth) ? 1 : 0;
142 isShortGI = (ht_cap->ChlWidth) ?
143 ((ht_cap->ShortGI40Mhz) ? 1 : 0) :
144 ((ht_cap->ShortGI20Mhz) ? 1 : 0);
8fc8598e
JC		 145
146 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, MCS_FILTER_ALL);
f401441d 147 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f];
8fc8598e
JC		 148 if (rate > max_rate)
149 max_rate = rate;
150 }
8fc8598e
JC		 151 iwe.cmd = SIOCGIWRATE;
152 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
153 iwe.u.bitrate.value = max_rate * 500000;
e406322b 154 start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
8fc8598e 155 IW_EV_PARAM_LEN);
8fc8598e
JC		 156 iwe.cmd = IWEVCUSTOM;
157 iwe.u.data.length = p - custom;
158 if (iwe.u.data.length)
f9eb26cf 159 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
8fc8598e
JC		 160 /* Add quality statistics */
161 /* TODO: Fix these values... */
162 iwe.cmd = IWEVQUAL;
163 iwe.u.qual.qual = network->stats.signal;
164 iwe.u.qual.level = network->stats.rssi;
165 iwe.u.qual.noise = network->stats.noise;
166 iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK;
167 if (!(network->stats.mask & IEEE80211_STATMASK_RSSI))
168 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
169 if (!(network->stats.mask & IEEE80211_STATMASK_NOISE))
170 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
171 if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
172 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
173 iwe.u.qual.updated = 7;
e406322b 174 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
8fc8598e
JC		 175 iwe.cmd = IWEVCUSTOM;
176 p = custom;
177
178 iwe.u.data.length = p - custom;
179 if (iwe.u.data.length)
a1617c8c 180 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
e6c1ef6c 181
7a4f9419 182 if (ieee->wpa_enabled && network->wpa_ie_len) {
8fc8598e
JC		 183 char buf[MAX_WPA_IE_LEN * 2 + 30];
184 // printk("WPA IE\n");
185 u8 *p = buf;
186 p += sprintf(p, "wpa_ie=");
187 for (i = 0; i < network->wpa_ie_len; i++) {
188 p += sprintf(p, "%02x", network->wpa_ie[i]);
189 }
190
191 memset(&iwe, 0, sizeof(iwe));
192 iwe.cmd = IWEVCUSTOM;
193 iwe.u.data.length = strlen(buf);
e406322b 194 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
e406322b 195 }
8fc8598e 196
7a4f9419 197 if (ieee->wpa_enabled && network->rsn_ie_len) {
8fc8598e
JC		 198 char buf[MAX_WPA_IE_LEN * 2 + 30];
199
200 u8 *p = buf;
201 p += sprintf(p, "rsn_ie=");
202 for (i = 0; i < network->rsn_ie_len; i++) {
203 p += sprintf(p, "%02x", network->rsn_ie[i]);
204 }
205
206 memset(&iwe, 0, sizeof(iwe));
207 iwe.cmd = IWEVCUSTOM;
208 iwe.u.data.length = strlen(buf);
e406322b 209 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
e406322b 210 }
8fc8598e
JC		 211
212
213 /* Add EXTRA: Age to display seconds since last beacon/probe response
214 * for given network. */
215 iwe.cmd = IWEVCUSTOM;
216 p = custom;
88b3673e 217 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
8fc8598e
JC		 218 " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100));
219 iwe.u.data.length = p - custom;
220 if (iwe.u.data.length)
a1617c8c 221 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
8fc8598e
JC		 222
223 return start;
224}
225
226int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
227 struct iw_request_info *info,
228 union iwreq_data *wrqu, char *extra)
229{
230 struct ieee80211_network *network;
231 unsigned long flags;
232
233 char *ev = extra;
234// char *stop = ev + IW_SCAN_MAX_DATA;
235 char *stop = ev + wrqu->data.length;//IW_SCAN_MAX_DATA;
236 //char *stop = ev + IW_SCAN_MAX_DATA;
237 int i = 0;
238 int err = 0;
239 IEEE80211_DEBUG_WX("Getting scan\n");
e379a9a8 240 mutex_lock(&ieee->wx_mutex);
8fc8598e
JC		 241 spin_lock_irqsave(&ieee->lock, flags);
242
243 list_for_each_entry(network, &ieee->network_list, list) {
244 i++;
f401441d 245 if ((stop - ev) < 200) {
8fc8598e
JC		 246 err = -E2BIG;
247 break;
e379a9a8 248 }
8fc8598e
JC		 249 if (ieee->scan_age == 0 ||
250 time_after(network->last_scanned + ieee->scan_age, jiffies))
251 ev = rtl819x_translate_scan(ieee, ev, stop, network, info);
252 else
253 IEEE80211_DEBUG_SCAN(
254 "Not showing network '%s ("
0ee9f67c 255 "%pM)' due to age (%lums).\n",
8fc8598e
JC		 256 escape_essid(network->ssid,
257 network->ssid_len),
0ee9f67c 258 network->bssid,
8fc8598e
JC		 259 (jiffies - network->last_scanned) / (HZ / 100));
260 }
261
262 spin_unlock_irqrestore(&ieee->lock, flags);
e379a9a8 263 mutex_unlock(&ieee->wx_mutex);
8fc8598e
JC		 264 wrqu->data.length = ev - extra;
265 wrqu->data.flags = 0;
266
267 IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i);
268
269 return err;
270}
539b4f72 271EXPORT_SYMBOL(ieee80211_wx_get_scan);
8fc8598e
JC		 272
273int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
274 struct iw_request_info *info,
275 union iwreq_data *wrqu, char *keybuf)
276{
277 struct iw_point *erq = &(wrqu->encoding);
278 struct net_device *dev = ieee->dev;
279 struct ieee80211_security sec = {
280 .flags = 0
281 };
282 int i, key, key_provided, len;
283 struct ieee80211_crypt_data **crypt;
284
285 IEEE80211_DEBUG_WX("SET_ENCODE\n");
286
287 key = erq->flags & IW_ENCODE_INDEX;
288 if (key) {
289 if (key > WEP_KEYS)
290 return -EINVAL;
291 key--;
292 key_provided = 1;
293 } else {
294 key_provided = 0;
295 key = ieee->tx_keyidx;
296 }
297
298 IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
299 "provided" : "default");
300 crypt = &ieee->crypt[key];
301
302 if (erq->flags & IW_ENCODE_DISABLED) {
303 if (key_provided && *crypt) {
304 IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
305 key);
306 ieee80211_crypt_delayed_deinit(ieee, crypt);
307 } else
308 IEEE80211_DEBUG_WX("Disabling encryption.\n");
309
310 /* Check all the keys to see if any are still configured,
311 * and if no key index was provided, de-init them all */
312 for (i = 0; i < WEP_KEYS; i++) {
deabe035 313 if (ieee->crypt[i]) {
8fc8598e
JC		 314 if (key_provided)
315 break;
316 ieee80211_crypt_delayed_deinit(
317 ieee, &ieee->crypt[i]);
318 }
319 }
320
321 if (i == WEP_KEYS) {
322 sec.enabled = 0;
323 sec.level = SEC_LEVEL_0;
324 sec.flags |= SEC_ENABLED | SEC_LEVEL;
325 }
326
327 goto done;
328 }
329
330
331
332 sec.enabled = 1;
333 sec.flags |= SEC_ENABLED;
334
deabe035 335 if (*crypt && (*crypt)->ops &&
8fc8598e
JC		 336 strcmp((*crypt)->ops->name, "WEP") != 0) {
337 /* changing to use WEP; deinit previously used algorithm
338 * on this key */
339 ieee80211_crypt_delayed_deinit(ieee, crypt);
340 }
341
deabe035 342 if (!*crypt) {
8fc8598e
JC		 343 struct ieee80211_crypt_data *new_crypt;
344
345 /* take WEP into use */
7a6cb0d5 346 new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
8fc8598e 347 GFP_KERNEL);
3956c8ac 348 if (!new_crypt)
8fc8598e 349 return -ENOMEM;
5a5251b8
IS		 350 new_crypt->ops = try_then_request_module(ieee80211_get_crypto_ops("WEP"),
351 "ieee80211_crypt_wep");
8fc8598e 352 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
8fc8598e
JC		 353 new_crypt->priv = new_crypt->ops->init(key);
354
355 if (!new_crypt->ops || !new_crypt->priv) {
356 kfree(new_crypt);
357 new_crypt = NULL;
358
6a569336
SM		 359 netdev_warn(dev, "could not initialize WEP: "
360 "load module ieee80211_crypt_wep\n");
8fc8598e
JC		 361 return -EOPNOTSUPP;
362 }
363 *crypt = new_crypt;
364 }
365
366 /* If a new key was provided, set it up */
367 if (erq->length > 0) {
368 len = erq->length <= 5 ? 5 : 13;
369 memcpy(sec.keys[key], keybuf, erq->length);
370 if (len > erq->length)
371 memset(sec.keys[key] + erq->length, 0,
372 len - erq->length);
373 IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
374 key, escape_essid(sec.keys[key], len),
375 erq->length, len);
376 sec.key_sizes[key] = len;
e406322b 377 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
8fc8598e 378 (*crypt)->priv);
8dd43050 379 sec.flags |= BIT(key);
8fc8598e 380 /* This ensures a key will be activated if no key is
41dff4d6
VN		 381 * explicitly set
382 */
8fc8598e
JC		 383 if (key == sec.active_key)
384 sec.flags |= SEC_ACTIVE_KEY;
385 ieee->tx_keyidx = key;
386
387 } else {
388 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
389 NULL, (*crypt)->priv);
390 if (len == 0) {
391 /* Set a default key of all 0 */
392 printk("Setting key %d to all zero.\n",
393 key);
394
395 IEEE80211_DEBUG_WX("Setting key %d to all zero.\n",
396 key);
397 memset(sec.keys[key], 0, 13);
398 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
399 (*crypt)->priv);
400 sec.key_sizes[key] = 13;
8dd43050 401 sec.flags |= BIT(key);
8fc8598e
JC		 402 }
403
404 /* No key data - just set the default TX key index */
405 if (key_provided) {
406 IEEE80211_DEBUG_WX(
407 "Setting key %d to default Tx key.\n", key);
408 ieee->tx_keyidx = key;
409 sec.active_key = key;
410 sec.flags |= SEC_ACTIVE_KEY;
411 }
412 }
413
414 done:
415 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
416 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
417 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
418 sec.flags |= SEC_AUTH_MODE;
419 IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
420 "OPEN" : "SHARED KEY");
421
422 /* For now we just support WEP, so only set that security level...
423 * TODO: When WPA is added this is one place that needs to change */
424 sec.flags |= SEC_LEVEL;
425 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
426
427 if (ieee->set_security)
428 ieee->set_security(dev, &sec);
429
430 /* Do not reset port if card is in Managed mode since resetting will
431 * generate new IEEE 802.11 authentication which may end up in looping
432 * with IEEE 802.1X. If your hardware requires a reset after WEP
433 * configuration (for example... Prism2), implement the reset_port in
434 * the callbacks structures used to initialize the 802.11 stack. */
435 if (ieee->reset_on_keychange &&
436 ieee->iw_mode != IW_MODE_INFRA &&
437 ieee->reset_port && ieee->reset_port(dev)) {
ea7a10ea 438 netdev_dbg(ieee->dev, "reset_port failed\n");
8fc8598e
JC		 439 return -EINVAL;
440 }
441 return 0;
442}
539b4f72 443EXPORT_SYMBOL(ieee80211_wx_set_encode);
8fc8598e
JC		 444
445int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
446 struct iw_request_info *info,
447 union iwreq_data *wrqu, char *keybuf)
448{
449 struct iw_point *erq = &(wrqu->encoding);
450 int len, key;
451 struct ieee80211_crypt_data *crypt;
452
453 IEEE80211_DEBUG_WX("GET_ENCODE\n");
454
f401441d 455 if (ieee->iw_mode == IW_MODE_MONITOR)
8fc8598e
JC		 456 return -1;
457
458 key = erq->flags & IW_ENCODE_INDEX;
459 if (key) {
460 if (key > WEP_KEYS)
461 return -EINVAL;
462 key--;
463 } else
464 key = ieee->tx_keyidx;
465
466 crypt = ieee->crypt[key];
467 erq->flags = key + 1;
468
deabe035 469 if (!crypt || !crypt->ops) {
8fc8598e
JC		 470 erq->length = 0;
471 erq->flags |= IW_ENCODE_DISABLED;
472 return 0;
473 }
8fc8598e
JC		 474 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
475 erq->length = (len >= 0 ? len : 0);
476
477 erq->flags |= IW_ENCODE_ENABLED;
478
479 if (ieee->open_wep)
480 erq->flags |= IW_ENCODE_OPEN;
481 else
482 erq->flags |= IW_ENCODE_RESTRICTED;
483
484 return 0;
485}
539b4f72
BT		 486EXPORT_SYMBOL(ieee80211_wx_get_encode);
487
8fc8598e 488int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
e406322b
MCC		 489 struct iw_request_info *info,
490 union iwreq_data *wrqu, char *extra)
8fc8598e
JC		 491{
492 int ret = 0;
8fc8598e 493 struct net_device *dev = ieee->dev;
e406322b
MCC		 494 struct iw_point *encoding = &wrqu->encoding;
495 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
496 int i, idx;
497 int group_key = 0;
498 const char *alg, *module;
499 struct ieee80211_crypto_ops *ops;
500 struct ieee80211_crypt_data **crypt;
501
502 struct ieee80211_security sec = {
503 .flags = 0,
504 };
e406322b
MCC		 505 idx = encoding->flags & IW_ENCODE_INDEX;
506 if (idx) {
507 if (idx < 1 || idx > WEP_KEYS)
508 return -EINVAL;
509 idx--;
510 } else
511 idx = ieee->tx_keyidx;
8fc8598e 512
e406322b 513 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
8fc8598e 514
e406322b 515 crypt = &ieee->crypt[idx];
8fc8598e 516
e406322b
MCC		 517 group_key = 1;
518 } else {
519 /* some Cisco APs use idx>0 for unicast in dynamic WEP */
e406322b
MCC		 520 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
521 return -EINVAL;
522 if (ieee->iw_mode == IW_MODE_INFRA)
8fc8598e 523
e406322b 524 crypt = &ieee->crypt[idx];
8fc8598e 525
e406322b
MCC		 526 else
527 return -EINVAL;
528 }
8fc8598e 529
e406322b
MCC		 530 sec.flags |= SEC_ENABLED;// | SEC_ENCRYPT;
531 if ((encoding->flags & IW_ENCODE_DISABLED) ||
532 ext->alg == IW_ENCODE_ALG_NONE) {
533 if (*crypt)
534 ieee80211_crypt_delayed_deinit(ieee, crypt);
8fc8598e 535
e406322b 536 for (i = 0; i < WEP_KEYS; i++)
8fc8598e 537
deabe035 538 if (ieee->crypt[i])
8fc8598e 539
e406322b 540 break;
8fc8598e 541
e406322b
MCC		 542 if (i == WEP_KEYS) {
543 sec.enabled = 0;
544 // sec.encrypt = 0;
545 sec.level = SEC_LEVEL_0;
546 sec.flags |= SEC_LEVEL;
547 }
e406322b
MCC		 548 goto done;
549 }
8fc8598e
JC		 550
551 sec.enabled = 1;
552 // sec.encrypt = 1;
e406322b
MCC		 553 switch (ext->alg) {
554 case IW_ENCODE_ALG_WEP:
555 alg = "WEP";
556 module = "ieee80211_crypt_wep";
557 break;
558 case IW_ENCODE_ALG_TKIP:
559 alg = "TKIP";
560 module = "ieee80211_crypt_tkip";
561 break;
562 case IW_ENCODE_ALG_CCMP:
563 alg = "CCMP";
564 module = "ieee80211_crypt_ccmp";
565 break;
566 default:
567 IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
568 dev->name, ext->alg);
569 ret = -EINVAL;
570 goto done;
571 }
f401441d 572 printk("alg name:%s\n", alg);
8fc8598e 573
5a5251b8
IS		 574 ops = try_then_request_module(ieee80211_get_crypto_ops(alg), module);
575 if (!ops) {
e406322b
MCC		 576 IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
577 dev->name, ext->alg);
8fc8598e 578 printk("========>unknown crypto alg %d\n", ext->alg);
e406322b
MCC		 579 ret = -EINVAL;
580 goto done;
581 }
8fc8598e 582
deabe035 583 if (!*crypt || (*crypt)->ops != ops) {
e406322b 584 struct ieee80211_crypt_data *new_crypt;
8fc8598e 585
e406322b 586 ieee80211_crypt_delayed_deinit(ieee, crypt);
8fc8598e 587
e406322b 588 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
3956c8ac 589 if (!new_crypt) {
e406322b
MCC		 590 ret = -ENOMEM;
591 goto done;
592 }
593 new_crypt->ops = ops;
594 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
595 new_crypt->priv = new_crypt->ops->init(idx);
deabe035 596 if (!new_crypt->priv) {
e406322b
MCC		 597 kfree(new_crypt);
598 ret = -EINVAL;
599 goto done;
600 }
601 *crypt = new_crypt;
e406322b
MCC		 602 }
603
604 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
605 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
606 (*crypt)->priv) < 0) {
607 IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
8fc8598e 608 printk("key setting failed\n");
e406322b
MCC		 609 ret = -EINVAL;
610 goto done;
611 }
8fc8598e 612 //skip_host_crypt:
e406322b
MCC		 613 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
614 ieee->tx_keyidx = idx;
615 sec.active_key = idx;
616 sec.flags |= SEC_ACTIVE_KEY;
617 }
618
619 if (ext->alg != IW_ENCODE_ALG_NONE) {
620 //memcpy(sec.keys[idx], ext->key, ext->key_len);
621 sec.key_sizes[idx] = ext->key_len;
8dd43050 622 sec.flags |= BIT(idx);
e406322b
MCC		 623 if (ext->alg == IW_ENCODE_ALG_WEP) {
624 // sec.encode_alg[idx] = SEC_ALG_WEP;
625 sec.flags |= SEC_LEVEL;
626 sec.level = SEC_LEVEL_1;
627 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
628 // sec.encode_alg[idx] = SEC_ALG_TKIP;
629 sec.flags |= SEC_LEVEL;
630 sec.level = SEC_LEVEL_2;
631 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
632 // sec.encode_alg[idx] = SEC_ALG_CCMP;
633 sec.flags |= SEC_LEVEL;
634 sec.level = SEC_LEVEL_3;
635 }
636 /* Don't set sec level for group keys. */
637 if (group_key)
638 sec.flags &= ~SEC_LEVEL;
639 }
8fc8598e 640done:
e406322b
MCC		 641 if (ieee->set_security)
642 ieee->set_security(ieee->dev, &sec);
8fc8598e 643
f4c04b8f 644 if (ieee->reset_on_keychange &&
e406322b
MCC		 645 ieee->iw_mode != IW_MODE_INFRA &&
646 ieee->reset_port && ieee->reset_port(dev)) {
647 IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
648 return -EINVAL;
649 }
e406322b 650 return ret;
8fc8598e 651}
539b4f72 652EXPORT_SYMBOL(ieee80211_wx_set_encode_ext);
8fc8598e
JC		 653
654int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee,
655 struct iw_request_info *info,
656 union iwreq_data *wrqu, char *extra)
657{
658 struct iw_point *encoding = &wrqu->encoding;
659 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
660 struct ieee80211_crypt_data *crypt;
661 int idx, max_key_len;
662
663 max_key_len = encoding->length - sizeof(*ext);
664 if (max_key_len < 0)
665 return -EINVAL;
666
667 idx = encoding->flags & IW_ENCODE_INDEX;
668 if (idx) {
669 if (idx < 1 || idx > WEP_KEYS)
670 return -EINVAL;
671 idx--;
672 } else
673 idx = ieee->tx_keyidx;
674
716323c0 675 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
8fc8598e
JC		 676 ext->alg != IW_ENCODE_ALG_WEP)
677 if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
678 return -EINVAL;
679
680 crypt = ieee->crypt[idx];
681 encoding->flags = idx + 1;
682 memset(ext, 0, sizeof(*ext));
683
deabe035 684 if (!crypt || !crypt->ops) {
8fc8598e
JC		 685 ext->alg = IW_ENCODE_ALG_NONE;
686 ext->key_len = 0;
687 encoding->flags |= IW_ENCODE_DISABLED;
688 } else {
f401441d 689 if (strcmp(crypt->ops->name, "WEP") == 0)
8fc8598e
JC		 690 ext->alg = IW_ENCODE_ALG_WEP;
691 else if (strcmp(crypt->ops->name, "TKIP"))
692 ext->alg = IW_ENCODE_ALG_TKIP;
693 else if (strcmp(crypt->ops->name, "CCMP"))
694 ext->alg = IW_ENCODE_ALG_CCMP;
695 else
696 return -EINVAL;
697 ext->key_len = crypt->ops->get_key(ext->key, SCM_KEY_LEN, NULL, crypt->priv);
698 encoding->flags |= IW_ENCODE_ENABLED;
699 if (ext->key_len &&
700 (ext->alg == IW_ENCODE_ALG_TKIP ||
701 ext->alg == IW_ENCODE_ALG_CCMP))
702 ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
8fc8598e
JC		 703 }
704
705 return 0;
706}
539b4f72 707EXPORT_SYMBOL(ieee80211_wx_get_encode_ext);
8fc8598e
JC		 708
709int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
e406322b
MCC		 710 struct iw_request_info *info,
711 union iwreq_data *wrqu, char *extra)
8fc8598e 712{
f401441d 713 struct iw_mlme *mlme = (struct iw_mlme *)extra;
8fc8598e 714 switch (mlme->cmd) {
e406322b 715 case IW_MLME_DEAUTH:
8fc8598e
JC		 716 case IW_MLME_DISASSOC:
717 ieee80211_disassociate(ieee);
718 break;
24fbe875 719 default:
e406322b
MCC		 720 return -EOPNOTSUPP;
721 }
8fc8598e
JC		 722 return 0;
723}
539b4f72 724EXPORT_SYMBOL(ieee80211_wx_set_mlme);
8fc8598e
JC		 725
726int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
e406322b
MCC		 727 struct iw_request_info *info,
728 struct iw_param *data, char *extra)
8fc8598e 729{
8fc8598e 730 switch (data->flags & IW_AUTH_INDEX) {
e406322b 731 case IW_AUTH_WPA_VERSION:
8fc8598e 732 /*need to support wpa2 here*/
8fc8598e 733 break;
e406322b
MCC		 734 case IW_AUTH_CIPHER_PAIRWISE:
735 case IW_AUTH_CIPHER_GROUP:
736 case IW_AUTH_KEY_MGMT:
737 /*
8fc8598e
JC		 738 * * Host AP driver does not use these parameters and allows
739 * * wpa_supplicant to control them internally.
740 * */
e406322b
MCC		 741 break;
742 case IW_AUTH_TKIP_COUNTERMEASURES:
743 ieee->tkip_countermeasures = data->value;
744 break;
745 case IW_AUTH_DROP_UNENCRYPTED:
746 ieee->drop_unencrypted = data->value;
8fc8598e
JC		 747 break;
748
749 case IW_AUTH_80211_AUTH_ALG:
f8628a47 750 //printk("======>%s():data->value is %d\n",__func__,data->value);
8fc8598e 751 // ieee->open_wep = (data->value&IW_AUTH_ALG_OPEN_SYSTEM)?1:0;
7a4f9419 752 if (data->value & IW_AUTH_ALG_SHARED_KEY) {
8fc8598e
JC		 753 ieee->open_wep = 0;
754 ieee->auth_mode = 1;
7a4f9419 755 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) {
8fc8598e
JC		 756 ieee->open_wep = 1;
757 ieee->auth_mode = 0;
7a4f9419 758 } else if (data->value & IW_AUTH_ALG_LEAP) {
8fc8598e
JC		 759 ieee->open_wep = 1;
760 ieee->auth_mode = 2;
c3fb338a 761 } else
8fc8598e 762 return -EINVAL;
8fc8598e
JC		 763 break;
764
8fc8598e 765 case IW_AUTH_WPA_ENABLED:
f401441d 766 ieee->wpa_enabled = (data->value) ? 1 : 0;
8fc8598e
JC		 767 break;
768
8fc8598e 769 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
e406322b 770 ieee->ieee802_1x = data->value;
8fc8598e
JC		 771 break;
772 case IW_AUTH_PRIVACY_INVOKED:
773 ieee->privacy_invoked = data->value;
774 break;
775 default:
e406322b 776 return -EOPNOTSUPP;
8fc8598e 777 }
8fc8598e
JC		 778 return 0;
779}
539b4f72 780EXPORT_SYMBOL(ieee80211_wx_set_auth);
539b4f72 781
8fc8598e
JC		 782int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
783{
8fc8598e
JC		 784 u8 *buf;
785
f401441d 786 if (len > MAX_WPA_IE_LEN || (len && !ie)) {
a1617c8c
SB		 787 //printk("return error out, len:%d\n", len);
788 return -EINVAL;
8fc8598e
JC		 789 }
790
791
c3fb338a 792 if (len) {
f401441d 793 if (len != ie[1] + 2) {
3d8affc0 794 printk("len:%zu, ie:%d\n", len, ie[1]);
8fc8598e
JC		 795 return -EINVAL;
796 }
94002c07 797 buf = kmemdup(ie, len, GFP_KERNEL);
deabe035 798 if (!buf)
8fc8598e 799 return -ENOMEM;
8fc8598e
JC		 800 kfree(ieee->wpa_ie);
801 ieee->wpa_ie = buf;
802 ieee->wpa_ie_len = len;
c3fb338a 803 } else {
8fc8598e
JC		 804 kfree(ieee->wpa_ie);
805 ieee->wpa_ie = NULL;
806 ieee->wpa_ie_len = 0;
807 }
8fc8598e 808 return 0;
8fc8598e 809}
8fc8598e 810EXPORT_SYMBOL(ieee80211_wx_set_gen_ie);
Linux 6.x block layer and io_uring tree(s)