Commit | Line | Data |
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ff1d2767 JM |
1 | /* |
2 | * Host AP (software wireless LAN access point) driver for | |
3 | * Intersil Prism2/2.5/3 - hostap.o module, common routines | |
4 | * | |
5 | * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen | |
6 | * <jkmaline@cc.hut.fi> | |
62fe7e37 | 7 | * Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi> |
ff1d2767 JM |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. See README and COPYING for | |
12 | * more details. | |
13 | */ | |
14 | ||
ff1d2767 JM |
15 | #include <linux/config.h> |
16 | #include <linux/version.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/proc_fs.h> | |
21 | #include <linux/if_arp.h> | |
22 | #include <linux/delay.h> | |
23 | #include <linux/random.h> | |
24 | #include <linux/workqueue.h> | |
25 | #include <linux/kmod.h> | |
26 | #include <linux/rtnetlink.h> | |
27 | #include <linux/wireless.h> | |
28 | #include <net/iw_handler.h> | |
ebed67d2 JM |
29 | #include <net/ieee80211.h> |
30 | #include <net/ieee80211_crypt.h> | |
ff1d2767 JM |
31 | #include <asm/uaccess.h> |
32 | ||
33 | #include "hostap_wlan.h" | |
34 | #include "hostap_80211.h" | |
35 | #include "hostap_ap.h" | |
36 | #include "hostap.h" | |
ff1d2767 JM |
37 | |
38 | MODULE_AUTHOR("Jouni Malinen"); | |
39 | MODULE_DESCRIPTION("Host AP common routines"); | |
40 | MODULE_LICENSE("GPL"); | |
f06ac319 | 41 | MODULE_VERSION(PRISM2_VERSION); |
ff1d2767 | 42 | |
ff1d2767 JM |
43 | #define TX_TIMEOUT (2 * HZ) |
44 | ||
45 | #define PRISM2_MAX_FRAME_SIZE 2304 | |
46 | #define PRISM2_MIN_MTU 256 | |
47 | /* FIX: */ | |
48 | #define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */)) | |
49 | ||
50 | ||
51 | /* hostap.c */ | |
52 | static int prism2_wds_add(local_info_t *local, u8 *remote_addr, | |
53 | int rtnl_locked); | |
54 | static int prism2_wds_del(local_info_t *local, u8 *remote_addr, | |
55 | int rtnl_locked, int do_not_remove); | |
56 | ||
57 | /* hostap_ap.c */ | |
58 | static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[], | |
59 | struct iw_quality qual[], int buf_size, | |
60 | int aplist); | |
61 | static int prism2_ap_translate_scan(struct net_device *dev, char *buffer); | |
62 | static int prism2_hostapd(struct ap_data *ap, | |
63 | struct prism2_hostapd_param *param); | |
64 | static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent, | |
62fe7e37 | 65 | struct ieee80211_crypt_data ***crypt); |
ff1d2767 JM |
66 | static void ap_control_kickall(struct ap_data *ap); |
67 | #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT | |
68 | static int ap_control_add_mac(struct mac_restrictions *mac_restrictions, | |
69 | u8 *mac); | |
70 | static int ap_control_del_mac(struct mac_restrictions *mac_restrictions, | |
71 | u8 *mac); | |
72 | static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions); | |
73 | static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, | |
74 | u8 *mac); | |
75 | #endif /* !PRISM2_NO_KERNEL_IEEE80211_MGMT */ | |
76 | ||
77 | ||
78 | static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442, | |
79 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 }; | |
80 | #define FREQ_COUNT (sizeof(freq_list) / sizeof(freq_list[0])) | |
81 | ||
82 | ||
83 | /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ | |
84 | /* Ethernet-II snap header (RFC1042 for most EtherTypes) */ | |
85 | static unsigned char rfc1042_header[] = | |
86 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
87 | /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ | |
88 | static unsigned char bridge_tunnel_header[] = | |
89 | { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; | |
90 | /* No encapsulation header if EtherType < 0x600 (=length) */ | |
91 | ||
92 | ||
93 | /* FIX: these could be compiled separately and linked together to hostap.o */ | |
94 | #include "hostap_ap.c" | |
95 | #include "hostap_info.c" | |
96 | #include "hostap_ioctl.c" | |
97 | #include "hostap_proc.c" | |
98 | #include "hostap_80211_rx.c" | |
99 | #include "hostap_80211_tx.c" | |
100 | ||
101 | ||
102 | struct net_device * hostap_add_interface(struct local_info *local, | |
103 | int type, int rtnl_locked, | |
104 | const char *prefix, | |
105 | const char *name) | |
106 | { | |
107 | struct net_device *dev, *mdev; | |
108 | struct hostap_interface *iface; | |
109 | int ret; | |
110 | ||
111 | dev = alloc_etherdev(sizeof(struct hostap_interface)); | |
112 | if (dev == NULL) | |
113 | return NULL; | |
114 | ||
115 | iface = netdev_priv(dev); | |
116 | iface->dev = dev; | |
117 | iface->local = local; | |
118 | iface->type = type; | |
119 | list_add(&iface->list, &local->hostap_interfaces); | |
120 | ||
121 | mdev = local->dev; | |
122 | memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN); | |
123 | dev->base_addr = mdev->base_addr; | |
124 | dev->irq = mdev->irq; | |
125 | dev->mem_start = mdev->mem_start; | |
126 | dev->mem_end = mdev->mem_end; | |
127 | ||
128 | hostap_setup_dev(dev, local, 0); | |
129 | dev->destructor = free_netdev; | |
130 | ||
131 | sprintf(dev->name, "%s%s", prefix, name); | |
132 | if (!rtnl_locked) | |
133 | rtnl_lock(); | |
134 | ||
135 | ret = 0; | |
136 | if (strchr(dev->name, '%')) | |
137 | ret = dev_alloc_name(dev, dev->name); | |
138 | ||
0cd545d6 | 139 | SET_NETDEV_DEV(dev, mdev->class_dev.dev); |
ff1d2767 JM |
140 | if (ret >= 0) |
141 | ret = register_netdevice(dev); | |
142 | ||
143 | if (!rtnl_locked) | |
144 | rtnl_unlock(); | |
145 | ||
146 | if (ret < 0) { | |
147 | printk(KERN_WARNING "%s: failed to add new netdevice!\n", | |
148 | dev->name); | |
149 | free_netdev(dev); | |
150 | return NULL; | |
151 | } | |
152 | ||
153 | printk(KERN_DEBUG "%s: registered netdevice %s\n", | |
154 | mdev->name, dev->name); | |
155 | ||
156 | return dev; | |
157 | } | |
158 | ||
159 | ||
160 | void hostap_remove_interface(struct net_device *dev, int rtnl_locked, | |
161 | int remove_from_list) | |
162 | { | |
163 | struct hostap_interface *iface; | |
164 | ||
165 | if (!dev) | |
166 | return; | |
167 | ||
168 | iface = netdev_priv(dev); | |
169 | ||
170 | if (remove_from_list) { | |
171 | list_del(&iface->list); | |
172 | } | |
173 | ||
174 | if (dev == iface->local->ddev) | |
175 | iface->local->ddev = NULL; | |
176 | else if (dev == iface->local->apdev) | |
177 | iface->local->apdev = NULL; | |
178 | else if (dev == iface->local->stadev) | |
179 | iface->local->stadev = NULL; | |
180 | ||
181 | if (rtnl_locked) | |
182 | unregister_netdevice(dev); | |
183 | else | |
184 | unregister_netdev(dev); | |
185 | ||
186 | /* dev->destructor = free_netdev() will free the device data, including | |
187 | * private data, when removing the device */ | |
188 | } | |
189 | ||
190 | ||
191 | static inline int prism2_wds_special_addr(u8 *addr) | |
192 | { | |
193 | if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5]) | |
194 | return 0; | |
195 | ||
196 | return 1; | |
197 | } | |
198 | ||
199 | ||
200 | static int prism2_wds_add(local_info_t *local, u8 *remote_addr, | |
201 | int rtnl_locked) | |
202 | { | |
203 | struct net_device *dev; | |
204 | struct list_head *ptr; | |
205 | struct hostap_interface *iface, *empty, *match; | |
206 | ||
207 | empty = match = NULL; | |
208 | read_lock_bh(&local->iface_lock); | |
209 | list_for_each(ptr, &local->hostap_interfaces) { | |
210 | iface = list_entry(ptr, struct hostap_interface, list); | |
211 | if (iface->type != HOSTAP_INTERFACE_WDS) | |
212 | continue; | |
213 | ||
214 | if (prism2_wds_special_addr(iface->u.wds.remote_addr)) | |
215 | empty = iface; | |
216 | else if (memcmp(iface->u.wds.remote_addr, remote_addr, | |
217 | ETH_ALEN) == 0) { | |
218 | match = iface; | |
219 | break; | |
220 | } | |
221 | } | |
222 | if (!match && empty && !prism2_wds_special_addr(remote_addr)) { | |
223 | /* take pre-allocated entry into use */ | |
224 | memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN); | |
225 | read_unlock_bh(&local->iface_lock); | |
226 | printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n", | |
227 | local->dev->name, empty->dev->name); | |
228 | return 0; | |
229 | } | |
230 | read_unlock_bh(&local->iface_lock); | |
231 | ||
232 | if (!prism2_wds_special_addr(remote_addr)) { | |
233 | if (match) | |
234 | return -EEXIST; | |
235 | hostap_add_sta(local->ap, remote_addr); | |
236 | } | |
237 | ||
238 | if (local->wds_connections >= local->wds_max_connections) | |
239 | return -ENOBUFS; | |
240 | ||
241 | /* verify that there is room for wds# postfix in the interface name */ | |
242 | if (strlen(local->dev->name) > IFNAMSIZ - 5) { | |
243 | printk(KERN_DEBUG "'%s' too long base device name\n", | |
244 | local->dev->name); | |
245 | return -EINVAL; | |
246 | } | |
247 | ||
248 | dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked, | |
249 | local->ddev->name, "wds%d"); | |
250 | if (dev == NULL) | |
251 | return -ENOMEM; | |
252 | ||
253 | iface = netdev_priv(dev); | |
254 | memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN); | |
255 | ||
256 | local->wds_connections++; | |
257 | ||
258 | return 0; | |
259 | } | |
260 | ||
261 | ||
262 | static int prism2_wds_del(local_info_t *local, u8 *remote_addr, | |
263 | int rtnl_locked, int do_not_remove) | |
264 | { | |
265 | unsigned long flags; | |
266 | struct list_head *ptr; | |
267 | struct hostap_interface *iface, *selected = NULL; | |
268 | ||
269 | write_lock_irqsave(&local->iface_lock, flags); | |
270 | list_for_each(ptr, &local->hostap_interfaces) { | |
271 | iface = list_entry(ptr, struct hostap_interface, list); | |
272 | if (iface->type != HOSTAP_INTERFACE_WDS) | |
273 | continue; | |
274 | ||
275 | if (memcmp(iface->u.wds.remote_addr, remote_addr, | |
276 | ETH_ALEN) == 0) { | |
277 | selected = iface; | |
278 | break; | |
279 | } | |
280 | } | |
281 | if (selected && !do_not_remove) | |
282 | list_del(&selected->list); | |
283 | write_unlock_irqrestore(&local->iface_lock, flags); | |
284 | ||
285 | if (selected) { | |
286 | if (do_not_remove) | |
287 | memset(selected->u.wds.remote_addr, 0, ETH_ALEN); | |
288 | else { | |
289 | hostap_remove_interface(selected->dev, rtnl_locked, 0); | |
290 | local->wds_connections--; | |
291 | } | |
292 | } | |
293 | ||
294 | return selected ? 0 : -ENODEV; | |
295 | } | |
296 | ||
297 | ||
298 | u16 hostap_tx_callback_register(local_info_t *local, | |
299 | void (*func)(struct sk_buff *, int ok, void *), | |
300 | void *data) | |
301 | { | |
302 | unsigned long flags; | |
303 | struct hostap_tx_callback_info *entry; | |
304 | ||
305 | entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry), | |
306 | GFP_ATOMIC); | |
307 | if (entry == NULL) | |
308 | return 0; | |
309 | ||
310 | entry->func = func; | |
311 | entry->data = data; | |
312 | ||
313 | spin_lock_irqsave(&local->lock, flags); | |
314 | entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1; | |
315 | entry->next = local->tx_callback; | |
316 | local->tx_callback = entry; | |
317 | spin_unlock_irqrestore(&local->lock, flags); | |
318 | ||
319 | return entry->idx; | |
320 | } | |
321 | ||
322 | ||
323 | int hostap_tx_callback_unregister(local_info_t *local, u16 idx) | |
324 | { | |
325 | unsigned long flags; | |
326 | struct hostap_tx_callback_info *cb, *prev = NULL; | |
327 | ||
328 | spin_lock_irqsave(&local->lock, flags); | |
329 | cb = local->tx_callback; | |
330 | while (cb != NULL && cb->idx != idx) { | |
331 | prev = cb; | |
332 | cb = cb->next; | |
333 | } | |
334 | if (cb) { | |
335 | if (prev == NULL) | |
336 | local->tx_callback = cb->next; | |
337 | else | |
338 | prev->next = cb->next; | |
339 | kfree(cb); | |
340 | } | |
341 | spin_unlock_irqrestore(&local->lock, flags); | |
342 | ||
343 | return cb ? 0 : -1; | |
344 | } | |
345 | ||
346 | ||
347 | /* val is in host byte order */ | |
348 | int hostap_set_word(struct net_device *dev, int rid, u16 val) | |
349 | { | |
350 | struct hostap_interface *iface; | |
351 | u16 tmp = cpu_to_le16(val); | |
352 | iface = netdev_priv(dev); | |
353 | return iface->local->func->set_rid(dev, rid, &tmp, 2); | |
354 | } | |
355 | ||
356 | ||
357 | int hostap_set_string(struct net_device *dev, int rid, const char *val) | |
358 | { | |
359 | struct hostap_interface *iface; | |
360 | char buf[MAX_SSID_LEN + 2]; | |
361 | int len; | |
362 | ||
363 | iface = netdev_priv(dev); | |
364 | len = strlen(val); | |
365 | if (len > MAX_SSID_LEN) | |
366 | return -1; | |
367 | memset(buf, 0, sizeof(buf)); | |
368 | buf[0] = len; /* little endian 16 bit word */ | |
369 | memcpy(buf + 2, val, len); | |
370 | ||
371 | return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2); | |
372 | } | |
373 | ||
374 | ||
375 | u16 hostap_get_porttype(local_info_t *local) | |
376 | { | |
377 | if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc) | |
378 | return HFA384X_PORTTYPE_PSEUDO_IBSS; | |
379 | if (local->iw_mode == IW_MODE_ADHOC) | |
380 | return HFA384X_PORTTYPE_IBSS; | |
381 | if (local->iw_mode == IW_MODE_INFRA) | |
382 | return HFA384X_PORTTYPE_BSS; | |
383 | if (local->iw_mode == IW_MODE_REPEAT) | |
384 | return HFA384X_PORTTYPE_WDS; | |
385 | if (local->iw_mode == IW_MODE_MONITOR) | |
386 | return HFA384X_PORTTYPE_PSEUDO_IBSS; | |
387 | return HFA384X_PORTTYPE_HOSTAP; | |
388 | } | |
389 | ||
390 | ||
391 | int hostap_set_encryption(local_info_t *local) | |
392 | { | |
393 | u16 val, old_val; | |
394 | int i, keylen, len, idx; | |
395 | char keybuf[WEP_KEY_LEN + 1]; | |
396 | enum { NONE, WEP, OTHER } encrypt_type; | |
397 | ||
398 | idx = local->tx_keyidx; | |
399 | if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL) | |
400 | encrypt_type = NONE; | |
401 | else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0) | |
402 | encrypt_type = WEP; | |
403 | else | |
404 | encrypt_type = OTHER; | |
405 | ||
406 | if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, | |
407 | 1) < 0) { | |
408 | printk(KERN_DEBUG "Could not read current WEP flags.\n"); | |
409 | goto fail; | |
410 | } | |
411 | le16_to_cpus(&val); | |
412 | old_val = val; | |
413 | ||
414 | if (encrypt_type != NONE || local->privacy_invoked) | |
415 | val |= HFA384X_WEPFLAGS_PRIVACYINVOKED; | |
416 | else | |
417 | val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED; | |
418 | ||
419 | if (local->open_wep || encrypt_type == NONE || | |
420 | ((local->ieee_802_1x || local->wpa) && local->host_decrypt)) | |
421 | val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; | |
422 | else | |
423 | val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; | |
424 | ||
425 | if ((encrypt_type != NONE || local->privacy_invoked) && | |
426 | (encrypt_type == OTHER || local->host_encrypt)) | |
427 | val |= HFA384X_WEPFLAGS_HOSTENCRYPT; | |
428 | else | |
429 | val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT; | |
430 | if ((encrypt_type != NONE || local->privacy_invoked) && | |
431 | (encrypt_type == OTHER || local->host_decrypt)) | |
432 | val |= HFA384X_WEPFLAGS_HOSTDECRYPT; | |
433 | else | |
434 | val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT; | |
435 | ||
436 | if (val != old_val && | |
437 | hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) { | |
438 | printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n", | |
439 | val); | |
440 | goto fail; | |
441 | } | |
442 | ||
443 | if (encrypt_type != WEP) | |
444 | return 0; | |
445 | ||
446 | /* 104-bit support seems to require that all the keys are set to the | |
447 | * same keylen */ | |
448 | keylen = 6; /* first 5 octets */ | |
449 | len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), | |
450 | NULL, local->crypt[idx]->priv); | |
451 | if (idx >= 0 && idx < WEP_KEYS && len > 5) | |
452 | keylen = WEP_KEY_LEN + 1; /* first 13 octets */ | |
453 | ||
454 | for (i = 0; i < WEP_KEYS; i++) { | |
455 | memset(keybuf, 0, sizeof(keybuf)); | |
456 | if (local->crypt[i]) { | |
457 | (void) local->crypt[i]->ops->get_key( | |
458 | keybuf, sizeof(keybuf), | |
459 | NULL, local->crypt[i]->priv); | |
460 | } | |
461 | if (local->func->set_rid(local->dev, | |
462 | HFA384X_RID_CNFDEFAULTKEY0 + i, | |
463 | keybuf, keylen)) { | |
464 | printk(KERN_DEBUG "Could not set key %d (len=%d)\n", | |
465 | i, keylen); | |
466 | goto fail; | |
467 | } | |
468 | } | |
469 | if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) { | |
470 | printk(KERN_DEBUG "Could not set default keyid %d\n", idx); | |
471 | goto fail; | |
472 | } | |
473 | ||
474 | return 0; | |
475 | ||
476 | fail: | |
477 | printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name); | |
478 | return -1; | |
479 | } | |
480 | ||
481 | ||
482 | int hostap_set_antsel(local_info_t *local) | |
483 | { | |
484 | u16 val; | |
485 | int ret = 0; | |
486 | ||
487 | if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH && | |
488 | local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, | |
489 | HFA386X_CR_TX_CONFIGURE, | |
490 | NULL, &val) == 0) { | |
491 | val &= ~(BIT(2) | BIT(1)); | |
492 | switch (local->antsel_tx) { | |
493 | case HOSTAP_ANTSEL_DIVERSITY: | |
494 | val |= BIT(1); | |
495 | break; | |
496 | case HOSTAP_ANTSEL_LOW: | |
497 | break; | |
498 | case HOSTAP_ANTSEL_HIGH: | |
499 | val |= BIT(2); | |
500 | break; | |
501 | } | |
502 | ||
503 | if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, | |
504 | HFA386X_CR_TX_CONFIGURE, &val, NULL)) { | |
505 | printk(KERN_INFO "%s: setting TX AntSel failed\n", | |
506 | local->dev->name); | |
507 | ret = -1; | |
508 | } | |
509 | } | |
510 | ||
511 | if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH && | |
512 | local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, | |
513 | HFA386X_CR_RX_CONFIGURE, | |
514 | NULL, &val) == 0) { | |
515 | val &= ~(BIT(1) | BIT(0)); | |
516 | switch (local->antsel_rx) { | |
517 | case HOSTAP_ANTSEL_DIVERSITY: | |
518 | break; | |
519 | case HOSTAP_ANTSEL_LOW: | |
520 | val |= BIT(0); | |
521 | break; | |
522 | case HOSTAP_ANTSEL_HIGH: | |
523 | val |= BIT(0) | BIT(1); | |
524 | break; | |
525 | } | |
526 | ||
527 | if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, | |
528 | HFA386X_CR_RX_CONFIGURE, &val, NULL)) { | |
529 | printk(KERN_INFO "%s: setting RX AntSel failed\n", | |
530 | local->dev->name); | |
531 | ret = -1; | |
532 | } | |
533 | } | |
534 | ||
535 | return ret; | |
536 | } | |
537 | ||
538 | ||
539 | int hostap_set_roaming(local_info_t *local) | |
540 | { | |
541 | u16 val; | |
542 | ||
543 | switch (local->host_roaming) { | |
544 | case 1: | |
545 | val = HFA384X_ROAMING_HOST; | |
546 | break; | |
547 | case 2: | |
548 | val = HFA384X_ROAMING_DISABLED; | |
549 | break; | |
550 | case 0: | |
551 | default: | |
552 | val = HFA384X_ROAMING_FIRMWARE; | |
553 | break; | |
554 | } | |
555 | ||
556 | return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val); | |
557 | } | |
558 | ||
559 | ||
560 | int hostap_set_auth_algs(local_info_t *local) | |
561 | { | |
562 | int val = local->auth_algs; | |
563 | /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication | |
564 | * set to include both Open and Shared Key flags. It tries to use | |
565 | * Shared Key authentication in that case even if WEP keys are not | |
566 | * configured.. STA f/w v0.7.6 is able to handle such configuration, | |
567 | * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */ | |
568 | if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) && | |
569 | val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY) | |
570 | val = PRISM2_AUTH_OPEN; | |
571 | ||
572 | if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) { | |
573 | printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x " | |
574 | "failed\n", local->dev->name, local->auth_algs); | |
575 | return -EINVAL; | |
576 | } | |
577 | ||
578 | return 0; | |
579 | } | |
580 | ||
581 | ||
582 | void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx) | |
583 | { | |
584 | u16 status, fc; | |
585 | ||
586 | status = __le16_to_cpu(rx->status); | |
587 | ||
588 | printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, " | |
589 | "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; " | |
590 | "jiffies=%ld\n", | |
591 | name, status, (status >> 8) & 0x07, status >> 13, status & 1, | |
592 | rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies); | |
593 | ||
594 | fc = __le16_to_cpu(rx->frame_control); | |
595 | printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " | |
596 | "data_len=%d%s%s\n", | |
ebed67d2 | 597 | fc, HOSTAP_FC_GET_TYPE(fc), HOSTAP_FC_GET_STYPE(fc), |
ff1d2767 JM |
598 | __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl), |
599 | __le16_to_cpu(rx->data_len), | |
600 | fc & WLAN_FC_TODS ? " [ToDS]" : "", | |
601 | fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); | |
602 | ||
603 | printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" | |
604 | MACSTR "\n", | |
605 | MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3), | |
606 | MAC2STR(rx->addr4)); | |
607 | ||
608 | printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", | |
609 | MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr), | |
610 | __be16_to_cpu(rx->len)); | |
611 | } | |
612 | ||
613 | ||
614 | void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx) | |
615 | { | |
616 | u16 fc; | |
617 | ||
618 | printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d " | |
619 | "tx_control=0x%04x; jiffies=%ld\n", | |
620 | name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate, | |
621 | __le16_to_cpu(tx->tx_control), jiffies); | |
622 | ||
623 | fc = __le16_to_cpu(tx->frame_control); | |
624 | printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " | |
625 | "data_len=%d%s%s\n", | |
ebed67d2 | 626 | fc, HOSTAP_FC_GET_TYPE(fc), HOSTAP_FC_GET_STYPE(fc), |
ff1d2767 JM |
627 | __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl), |
628 | __le16_to_cpu(tx->data_len), | |
629 | fc & WLAN_FC_TODS ? " [ToDS]" : "", | |
630 | fc & WLAN_FC_FROMDS ? " [FromDS]" : ""); | |
631 | ||
632 | printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" | |
633 | MACSTR "\n", | |
634 | MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3), | |
635 | MAC2STR(tx->addr4)); | |
636 | ||
637 | printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", | |
638 | MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr), | |
639 | __be16_to_cpu(tx->len)); | |
640 | } | |
641 | ||
642 | ||
643 | int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr) | |
644 | { | |
645 | memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */ | |
646 | return ETH_ALEN; | |
647 | } | |
648 | ||
649 | ||
650 | int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr) | |
651 | { | |
652 | if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) { | |
653 | memcpy(haddr, skb->mac.raw + | |
654 | sizeof(struct linux_wlan_ng_prism_hdr) + 10, | |
655 | ETH_ALEN); /* addr2 */ | |
656 | } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */ | |
657 | memcpy(haddr, skb->mac.raw + | |
658 | sizeof(struct linux_wlan_ng_cap_hdr) + 10, | |
659 | ETH_ALEN); /* addr2 */ | |
660 | } | |
661 | return ETH_ALEN; | |
662 | } | |
663 | ||
664 | ||
665 | int hostap_80211_get_hdrlen(u16 fc) | |
666 | { | |
667 | int hdrlen = 24; | |
668 | ||
ebed67d2 | 669 | switch (HOSTAP_FC_GET_TYPE(fc)) { |
ff1d2767 JM |
670 | case WLAN_FC_TYPE_DATA: |
671 | if ((fc & WLAN_FC_FROMDS) && (fc & WLAN_FC_TODS)) | |
672 | hdrlen = 30; /* Addr4 */ | |
673 | break; | |
674 | case WLAN_FC_TYPE_CTRL: | |
ebed67d2 | 675 | switch (HOSTAP_FC_GET_STYPE(fc)) { |
ff1d2767 JM |
676 | case WLAN_FC_STYPE_CTS: |
677 | case WLAN_FC_STYPE_ACK: | |
678 | hdrlen = 10; | |
679 | break; | |
680 | default: | |
681 | hdrlen = 16; | |
682 | break; | |
683 | } | |
684 | break; | |
685 | } | |
686 | ||
687 | return hdrlen; | |
688 | } | |
689 | ||
690 | ||
691 | struct net_device_stats *hostap_get_stats(struct net_device *dev) | |
692 | { | |
693 | struct hostap_interface *iface; | |
694 | iface = netdev_priv(dev); | |
695 | return &iface->stats; | |
696 | } | |
697 | ||
698 | ||
699 | static int prism2_close(struct net_device *dev) | |
700 | { | |
701 | struct hostap_interface *iface; | |
702 | local_info_t *local; | |
703 | ||
704 | PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name); | |
705 | ||
706 | iface = netdev_priv(dev); | |
707 | local = iface->local; | |
708 | ||
709 | if (dev == local->ddev) { | |
710 | prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING); | |
711 | } | |
712 | #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT | |
713 | if (!local->hostapd && dev == local->dev && | |
714 | (!local->func->card_present || local->func->card_present(local)) && | |
715 | local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER) | |
716 | hostap_deauth_all_stas(dev, local->ap, 1); | |
717 | #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ | |
718 | ||
719 | if (local->func->dev_close && local->func->dev_close(local)) | |
720 | return 0; | |
721 | ||
722 | if (dev == local->dev) { | |
723 | local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL); | |
724 | } | |
725 | ||
726 | if (netif_running(dev)) { | |
727 | netif_stop_queue(dev); | |
728 | netif_device_detach(dev); | |
729 | } | |
730 | ||
731 | flush_scheduled_work(); | |
732 | ||
733 | module_put(local->hw_module); | |
734 | ||
735 | local->num_dev_open--; | |
736 | ||
737 | if (dev != local->dev && local->dev->flags & IFF_UP && | |
738 | local->master_dev_auto_open && local->num_dev_open == 1) { | |
739 | /* Close master radio interface automatically if it was also | |
740 | * opened automatically and we are now closing the last | |
741 | * remaining non-master device. */ | |
742 | dev_close(local->dev); | |
743 | } | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | ||
749 | static int prism2_open(struct net_device *dev) | |
750 | { | |
751 | struct hostap_interface *iface; | |
752 | local_info_t *local; | |
753 | ||
754 | PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name); | |
755 | ||
756 | iface = netdev_priv(dev); | |
757 | local = iface->local; | |
758 | ||
759 | if (local->no_pri) { | |
760 | printk(KERN_DEBUG "%s: could not set interface UP - no PRI " | |
761 | "f/w\n", dev->name); | |
762 | return 1; | |
763 | } | |
764 | ||
765 | if ((local->func->card_present && !local->func->card_present(local)) || | |
766 | local->hw_downloading) | |
767 | return -ENODEV; | |
768 | ||
769 | if (local->func->dev_open && local->func->dev_open(local)) | |
770 | return 1; | |
771 | ||
772 | if (!try_module_get(local->hw_module)) | |
773 | return -ENODEV; | |
774 | local->num_dev_open++; | |
775 | ||
776 | if (!local->dev_enabled && local->func->hw_enable(dev, 1)) { | |
777 | printk(KERN_WARNING "%s: could not enable MAC port\n", | |
778 | dev->name); | |
779 | prism2_close(dev); | |
780 | return 1; | |
781 | } | |
782 | if (!local->dev_enabled) | |
783 | prism2_callback(local, PRISM2_CALLBACK_ENABLE); | |
784 | local->dev_enabled = 1; | |
785 | ||
786 | if (dev != local->dev && !(local->dev->flags & IFF_UP)) { | |
787 | /* Master radio interface is needed for all operation, so open | |
788 | * it automatically when any virtual net_device is opened. */ | |
789 | local->master_dev_auto_open = 1; | |
790 | dev_open(local->dev); | |
791 | } | |
792 | ||
793 | netif_device_attach(dev); | |
794 | netif_start_queue(dev); | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | ||
800 | static int prism2_set_mac_address(struct net_device *dev, void *p) | |
801 | { | |
802 | struct hostap_interface *iface; | |
803 | local_info_t *local; | |
804 | struct list_head *ptr; | |
805 | struct sockaddr *addr = p; | |
806 | ||
807 | iface = netdev_priv(dev); | |
808 | local = iface->local; | |
809 | ||
810 | if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data, | |
811 | ETH_ALEN) < 0 || local->func->reset_port(dev)) | |
812 | return -EINVAL; | |
813 | ||
814 | read_lock_bh(&local->iface_lock); | |
815 | list_for_each(ptr, &local->hostap_interfaces) { | |
816 | iface = list_entry(ptr, struct hostap_interface, list); | |
817 | memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN); | |
818 | } | |
819 | memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN); | |
820 | read_unlock_bh(&local->iface_lock); | |
821 | ||
822 | return 0; | |
823 | } | |
824 | ||
825 | ||
826 | /* TODO: to be further implemented as soon as Prism2 fully supports | |
827 | * GroupAddresses and correct documentation is available */ | |
828 | void hostap_set_multicast_list_queue(void *data) | |
829 | { | |
830 | struct net_device *dev = (struct net_device *) data; | |
831 | struct hostap_interface *iface; | |
832 | local_info_t *local; | |
833 | ||
834 | iface = netdev_priv(dev); | |
835 | local = iface->local; | |
836 | if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE, | |
837 | local->is_promisc)) { | |
838 | printk(KERN_INFO "%s: %sabling promiscuous mode failed\n", | |
839 | dev->name, local->is_promisc ? "en" : "dis"); | |
840 | } | |
841 | } | |
842 | ||
843 | ||
844 | static void hostap_set_multicast_list(struct net_device *dev) | |
845 | { | |
846 | #if 0 | |
847 | /* FIX: promiscuous mode seems to be causing a lot of problems with | |
848 | * some station firmware versions (FCSErr frames, invalid MACPort, etc. | |
849 | * corrupted incoming frames). This code is now commented out while the | |
850 | * problems are investigated. */ | |
851 | struct hostap_interface *iface; | |
852 | local_info_t *local; | |
853 | ||
854 | iface = netdev_priv(dev); | |
855 | local = iface->local; | |
856 | if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) { | |
857 | local->is_promisc = 1; | |
858 | } else { | |
859 | local->is_promisc = 0; | |
860 | } | |
861 | ||
862 | schedule_work(&local->set_multicast_list_queue); | |
863 | #endif | |
864 | } | |
865 | ||
866 | ||
867 | static int prism2_change_mtu(struct net_device *dev, int new_mtu) | |
868 | { | |
869 | if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU) | |
870 | return -EINVAL; | |
871 | ||
872 | dev->mtu = new_mtu; | |
873 | return 0; | |
874 | } | |
875 | ||
876 | ||
877 | static void prism2_tx_timeout(struct net_device *dev) | |
878 | { | |
879 | struct hostap_interface *iface; | |
880 | local_info_t *local; | |
881 | struct hfa384x_regs regs; | |
882 | ||
883 | iface = netdev_priv(dev); | |
884 | local = iface->local; | |
885 | ||
886 | printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name); | |
887 | netif_stop_queue(local->dev); | |
888 | ||
889 | local->func->read_regs(dev, ®s); | |
890 | printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x " | |
891 | "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n", | |
892 | dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1, | |
893 | regs.swsupport0); | |
894 | ||
895 | local->func->schedule_reset(local); | |
896 | } | |
897 | ||
898 | ||
899 | void hostap_setup_dev(struct net_device *dev, local_info_t *local, | |
900 | int main_dev) | |
901 | { | |
902 | struct hostap_interface *iface; | |
903 | ||
904 | iface = netdev_priv(dev); | |
905 | ether_setup(dev); | |
906 | ||
907 | /* kernel callbacks */ | |
908 | dev->get_stats = hostap_get_stats; | |
909 | if (iface) { | |
910 | /* Currently, we point to the proper spy_data only on | |
911 | * the main_dev. This could be fixed. Jean II */ | |
912 | iface->wireless_data.spy_data = &iface->spy_data; | |
913 | dev->wireless_data = &iface->wireless_data; | |
914 | } | |
915 | dev->wireless_handlers = | |
916 | (struct iw_handler_def *) &hostap_iw_handler_def; | |
917 | dev->do_ioctl = hostap_ioctl; | |
918 | dev->open = prism2_open; | |
919 | dev->stop = prism2_close; | |
920 | dev->hard_start_xmit = hostap_data_start_xmit; | |
921 | dev->set_mac_address = prism2_set_mac_address; | |
922 | dev->set_multicast_list = hostap_set_multicast_list; | |
923 | dev->change_mtu = prism2_change_mtu; | |
924 | dev->tx_timeout = prism2_tx_timeout; | |
925 | dev->watchdog_timeo = TX_TIMEOUT; | |
926 | ||
927 | dev->mtu = local->mtu; | |
928 | if (!main_dev) { | |
929 | /* use main radio device queue */ | |
930 | dev->tx_queue_len = 0; | |
931 | } | |
932 | ||
933 | SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops); | |
934 | ||
935 | netif_stop_queue(dev); | |
936 | } | |
937 | ||
938 | ||
939 | static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked) | |
940 | { | |
941 | struct net_device *dev = local->dev; | |
942 | ||
943 | if (local->apdev) | |
944 | return -EEXIST; | |
945 | ||
946 | printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name); | |
947 | ||
948 | local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP, | |
949 | rtnl_locked, local->ddev->name, | |
950 | "ap"); | |
951 | if (local->apdev == NULL) | |
952 | return -ENOMEM; | |
953 | ||
954 | local->apdev->hard_start_xmit = hostap_mgmt_start_xmit; | |
955 | local->apdev->type = ARPHRD_IEEE80211; | |
956 | local->apdev->hard_header_parse = hostap_80211_header_parse; | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | ||
962 | static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked) | |
963 | { | |
964 | struct net_device *dev = local->dev; | |
965 | ||
966 | printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); | |
967 | ||
968 | hostap_remove_interface(local->apdev, rtnl_locked, 1); | |
969 | local->apdev = NULL; | |
970 | ||
971 | return 0; | |
972 | } | |
973 | ||
974 | ||
975 | static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked) | |
976 | { | |
977 | struct net_device *dev = local->dev; | |
978 | ||
979 | if (local->stadev) | |
980 | return -EEXIST; | |
981 | ||
982 | printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name); | |
983 | ||
984 | local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA, | |
985 | rtnl_locked, local->ddev->name, | |
986 | "sta"); | |
987 | if (local->stadev == NULL) | |
988 | return -ENOMEM; | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | ||
994 | static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked) | |
995 | { | |
996 | struct net_device *dev = local->dev; | |
997 | ||
998 | printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); | |
999 | ||
1000 | hostap_remove_interface(local->stadev, rtnl_locked, 1); | |
1001 | local->stadev = NULL; | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | ||
1007 | int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked) | |
1008 | { | |
1009 | int ret; | |
1010 | ||
1011 | if (val < 0 || val > 1) | |
1012 | return -EINVAL; | |
1013 | ||
1014 | if (local->hostapd == val) | |
1015 | return 0; | |
1016 | ||
1017 | if (val) { | |
1018 | ret = hostap_enable_hostapd(local, rtnl_locked); | |
1019 | if (ret == 0) | |
1020 | local->hostapd = 1; | |
1021 | } else { | |
1022 | local->hostapd = 0; | |
1023 | ret = hostap_disable_hostapd(local, rtnl_locked); | |
1024 | if (ret != 0) | |
1025 | local->hostapd = 1; | |
1026 | } | |
1027 | ||
1028 | return ret; | |
1029 | } | |
1030 | ||
1031 | ||
1032 | int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked) | |
1033 | { | |
1034 | int ret; | |
1035 | ||
1036 | if (val < 0 || val > 1) | |
1037 | return -EINVAL; | |
1038 | ||
1039 | if (local->hostapd_sta == val) | |
1040 | return 0; | |
1041 | ||
1042 | if (val) { | |
1043 | ret = hostap_enable_hostapd_sta(local, rtnl_locked); | |
1044 | if (ret == 0) | |
1045 | local->hostapd_sta = 1; | |
1046 | } else { | |
1047 | local->hostapd_sta = 0; | |
1048 | ret = hostap_disable_hostapd_sta(local, rtnl_locked); | |
1049 | if (ret != 0) | |
1050 | local->hostapd_sta = 1; | |
1051 | } | |
1052 | ||
1053 | ||
1054 | return ret; | |
1055 | } | |
1056 | ||
1057 | ||
1058 | int prism2_update_comms_qual(struct net_device *dev) | |
1059 | { | |
1060 | struct hostap_interface *iface; | |
1061 | local_info_t *local; | |
1062 | int ret = 0; | |
1063 | struct hfa384x_comms_quality sq; | |
1064 | ||
1065 | iface = netdev_priv(dev); | |
1066 | local = iface->local; | |
1067 | if (!local->sta_fw_ver) | |
1068 | ret = -1; | |
1069 | else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) { | |
1070 | if (local->func->get_rid(local->dev, | |
1071 | HFA384X_RID_DBMCOMMSQUALITY, | |
1072 | &sq, sizeof(sq), 1) >= 0) { | |
1073 | local->comms_qual = (s16) le16_to_cpu(sq.comm_qual); | |
1074 | local->avg_signal = (s16) le16_to_cpu(sq.signal_level); | |
1075 | local->avg_noise = (s16) le16_to_cpu(sq.noise_level); | |
1076 | local->last_comms_qual_update = jiffies; | |
1077 | } else | |
1078 | ret = -1; | |
1079 | } else { | |
1080 | if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY, | |
1081 | &sq, sizeof(sq), 1) >= 0) { | |
1082 | local->comms_qual = le16_to_cpu(sq.comm_qual); | |
1083 | local->avg_signal = HFA384X_LEVEL_TO_dBm( | |
1084 | le16_to_cpu(sq.signal_level)); | |
1085 | local->avg_noise = HFA384X_LEVEL_TO_dBm( | |
1086 | le16_to_cpu(sq.noise_level)); | |
1087 | local->last_comms_qual_update = jiffies; | |
1088 | } else | |
1089 | ret = -1; | |
1090 | } | |
1091 | ||
1092 | return ret; | |
1093 | } | |
1094 | ||
1095 | ||
1096 | int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u8 stype, | |
1097 | u8 *body, size_t bodylen) | |
1098 | { | |
1099 | struct sk_buff *skb; | |
1100 | struct hostap_ieee80211_mgmt *mgmt; | |
1101 | struct hostap_skb_tx_data *meta; | |
1102 | struct net_device *dev = local->dev; | |
1103 | ||
1104 | skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen); | |
1105 | if (skb == NULL) | |
1106 | return -ENOMEM; | |
1107 | ||
1108 | mgmt = (struct hostap_ieee80211_mgmt *) | |
1109 | skb_put(skb, IEEE80211_MGMT_HDR_LEN); | |
1110 | memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN); | |
1111 | mgmt->frame_control = | |
1112 | cpu_to_le16((WLAN_FC_TYPE_MGMT << 2) | (stype << 4)); | |
1113 | memcpy(mgmt->da, dst, ETH_ALEN); | |
1114 | memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); | |
1115 | memcpy(mgmt->bssid, dst, ETH_ALEN); | |
1116 | if (body) | |
1117 | memcpy(skb_put(skb, bodylen), body, bodylen); | |
1118 | ||
1119 | meta = (struct hostap_skb_tx_data *) skb->cb; | |
1120 | memset(meta, 0, sizeof(*meta)); | |
1121 | meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; | |
1122 | meta->iface = netdev_priv(dev); | |
1123 | ||
1124 | skb->dev = dev; | |
1125 | skb->mac.raw = skb->nh.raw = skb->data; | |
1126 | dev_queue_xmit(skb); | |
1127 | ||
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | ||
1132 | int prism2_sta_deauth(local_info_t *local, u16 reason) | |
1133 | { | |
1134 | union iwreq_data wrqu; | |
1135 | int ret; | |
1136 | ||
1137 | if (local->iw_mode != IW_MODE_INFRA || | |
1138 | memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 || | |
1139 | memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0) | |
1140 | return 0; | |
1141 | ||
1142 | reason = cpu_to_le16(reason); | |
1143 | ret = prism2_sta_send_mgmt(local, local->bssid, WLAN_FC_STYPE_DEAUTH, | |
1144 | (u8 *) &reason, 2); | |
1145 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
1146 | wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL); | |
1147 | return ret; | |
1148 | } | |
1149 | ||
1150 | ||
1151 | struct proc_dir_entry *hostap_proc; | |
1152 | ||
1153 | static int __init hostap_init(void) | |
1154 | { | |
ff1d2767 JM |
1155 | if (proc_net != NULL) { |
1156 | hostap_proc = proc_mkdir("hostap", proc_net); | |
1157 | if (!hostap_proc) | |
1158 | printk(KERN_WARNING "Failed to mkdir " | |
1159 | "/proc/net/hostap\n"); | |
1160 | } else | |
1161 | hostap_proc = NULL; | |
1162 | ||
1163 | return 0; | |
1164 | } | |
1165 | ||
1166 | ||
1167 | static void __exit hostap_exit(void) | |
1168 | { | |
1169 | if (hostap_proc != NULL) { | |
1170 | hostap_proc = NULL; | |
1171 | remove_proc_entry("hostap", proc_net); | |
1172 | } | |
ff1d2767 JM |
1173 | } |
1174 | ||
1175 | ||
1176 | EXPORT_SYMBOL(hostap_set_word); | |
1177 | EXPORT_SYMBOL(hostap_set_string); | |
1178 | EXPORT_SYMBOL(hostap_get_porttype); | |
1179 | EXPORT_SYMBOL(hostap_set_encryption); | |
1180 | EXPORT_SYMBOL(hostap_set_antsel); | |
1181 | EXPORT_SYMBOL(hostap_set_roaming); | |
1182 | EXPORT_SYMBOL(hostap_set_auth_algs); | |
1183 | EXPORT_SYMBOL(hostap_dump_rx_header); | |
1184 | EXPORT_SYMBOL(hostap_dump_tx_header); | |
1185 | EXPORT_SYMBOL(hostap_80211_header_parse); | |
1186 | EXPORT_SYMBOL(hostap_80211_prism_header_parse); | |
1187 | EXPORT_SYMBOL(hostap_80211_get_hdrlen); | |
1188 | EXPORT_SYMBOL(hostap_get_stats); | |
1189 | EXPORT_SYMBOL(hostap_setup_dev); | |
1190 | EXPORT_SYMBOL(hostap_proc); | |
1191 | EXPORT_SYMBOL(hostap_set_multicast_list_queue); | |
1192 | EXPORT_SYMBOL(hostap_set_hostapd); | |
1193 | EXPORT_SYMBOL(hostap_set_hostapd_sta); | |
1194 | EXPORT_SYMBOL(hostap_add_interface); | |
1195 | EXPORT_SYMBOL(hostap_remove_interface); | |
1196 | EXPORT_SYMBOL(prism2_update_comms_qual); | |
1197 | ||
1198 | module_init(hostap_init); | |
1199 | module_exit(hostap_exit); |