Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 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> |
Jouni Malinen | 62fe7e3 | 2005-07-30 20:43:20 -0700 | [diff] [blame] | 7 | * Copyright (c) 2002-2005, Jouni Malinen <jkmaline@cc.hut.fi> |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 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 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 15 | #include <linux/config.h> |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 16 | #include <linux/module.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/slab.h> |
| 19 | #include <linux/proc_fs.h> |
| 20 | #include <linux/if_arp.h> |
| 21 | #include <linux/delay.h> |
| 22 | #include <linux/random.h> |
| 23 | #include <linux/workqueue.h> |
| 24 | #include <linux/kmod.h> |
| 25 | #include <linux/rtnetlink.h> |
| 26 | #include <linux/wireless.h> |
Adrian Bunk | 5fad5a2 | 2006-01-14 03:09:34 +0100 | [diff] [blame] | 27 | #include <linux/etherdevice.h> |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 28 | #include <net/iw_handler.h> |
Jouni Malinen | ebed67d | 2005-07-30 20:43:19 -0700 | [diff] [blame] | 29 | #include <net/ieee80211.h> |
| 30 | #include <net/ieee80211_crypt.h> |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 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" |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 37 | |
| 38 | MODULE_AUTHOR("Jouni Malinen"); |
| 39 | MODULE_DESCRIPTION("Host AP common routines"); |
| 40 | MODULE_LICENSE("GPL"); |
Jouni Malinen | f06ac31 | 2005-07-30 12:50:00 -0700 | [diff] [blame] | 41 | MODULE_VERSION(PRISM2_VERSION); |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 42 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 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 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 51 | struct net_device * hostap_add_interface(struct local_info *local, |
| 52 | int type, int rtnl_locked, |
| 53 | const char *prefix, |
| 54 | const char *name) |
| 55 | { |
| 56 | struct net_device *dev, *mdev; |
| 57 | struct hostap_interface *iface; |
| 58 | int ret; |
| 59 | |
| 60 | dev = alloc_etherdev(sizeof(struct hostap_interface)); |
| 61 | if (dev == NULL) |
| 62 | return NULL; |
| 63 | |
| 64 | iface = netdev_priv(dev); |
| 65 | iface->dev = dev; |
| 66 | iface->local = local; |
| 67 | iface->type = type; |
| 68 | list_add(&iface->list, &local->hostap_interfaces); |
| 69 | |
| 70 | mdev = local->dev; |
| 71 | memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN); |
| 72 | dev->base_addr = mdev->base_addr; |
| 73 | dev->irq = mdev->irq; |
| 74 | dev->mem_start = mdev->mem_start; |
| 75 | dev->mem_end = mdev->mem_end; |
| 76 | |
| 77 | hostap_setup_dev(dev, local, 0); |
| 78 | dev->destructor = free_netdev; |
| 79 | |
| 80 | sprintf(dev->name, "%s%s", prefix, name); |
| 81 | if (!rtnl_locked) |
| 82 | rtnl_lock(); |
| 83 | |
| 84 | ret = 0; |
| 85 | if (strchr(dev->name, '%')) |
| 86 | ret = dev_alloc_name(dev, dev->name); |
| 87 | |
Dave Hansen | 0cd545d | 2005-07-30 12:49:58 -0700 | [diff] [blame] | 88 | SET_NETDEV_DEV(dev, mdev->class_dev.dev); |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 89 | if (ret >= 0) |
| 90 | ret = register_netdevice(dev); |
| 91 | |
| 92 | if (!rtnl_locked) |
| 93 | rtnl_unlock(); |
| 94 | |
| 95 | if (ret < 0) { |
| 96 | printk(KERN_WARNING "%s: failed to add new netdevice!\n", |
| 97 | dev->name); |
| 98 | free_netdev(dev); |
| 99 | return NULL; |
| 100 | } |
| 101 | |
| 102 | printk(KERN_DEBUG "%s: registered netdevice %s\n", |
| 103 | mdev->name, dev->name); |
| 104 | |
| 105 | return dev; |
| 106 | } |
| 107 | |
| 108 | |
| 109 | void hostap_remove_interface(struct net_device *dev, int rtnl_locked, |
| 110 | int remove_from_list) |
| 111 | { |
| 112 | struct hostap_interface *iface; |
| 113 | |
| 114 | if (!dev) |
| 115 | return; |
| 116 | |
| 117 | iface = netdev_priv(dev); |
| 118 | |
| 119 | if (remove_from_list) { |
| 120 | list_del(&iface->list); |
| 121 | } |
| 122 | |
| 123 | if (dev == iface->local->ddev) |
| 124 | iface->local->ddev = NULL; |
| 125 | else if (dev == iface->local->apdev) |
| 126 | iface->local->apdev = NULL; |
| 127 | else if (dev == iface->local->stadev) |
| 128 | iface->local->stadev = NULL; |
| 129 | |
| 130 | if (rtnl_locked) |
| 131 | unregister_netdevice(dev); |
| 132 | else |
| 133 | unregister_netdev(dev); |
| 134 | |
| 135 | /* dev->destructor = free_netdev() will free the device data, including |
| 136 | * private data, when removing the device */ |
| 137 | } |
| 138 | |
| 139 | |
| 140 | static inline int prism2_wds_special_addr(u8 *addr) |
| 141 | { |
| 142 | if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5]) |
| 143 | return 0; |
| 144 | |
| 145 | return 1; |
| 146 | } |
| 147 | |
| 148 | |
Adrian Bunk | 5fad5a2 | 2006-01-14 03:09:34 +0100 | [diff] [blame] | 149 | int prism2_wds_add(local_info_t *local, u8 *remote_addr, |
| 150 | int rtnl_locked) |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 151 | { |
| 152 | struct net_device *dev; |
| 153 | struct list_head *ptr; |
| 154 | struct hostap_interface *iface, *empty, *match; |
| 155 | |
| 156 | empty = match = NULL; |
| 157 | read_lock_bh(&local->iface_lock); |
| 158 | list_for_each(ptr, &local->hostap_interfaces) { |
| 159 | iface = list_entry(ptr, struct hostap_interface, list); |
| 160 | if (iface->type != HOSTAP_INTERFACE_WDS) |
| 161 | continue; |
| 162 | |
| 163 | if (prism2_wds_special_addr(iface->u.wds.remote_addr)) |
| 164 | empty = iface; |
| 165 | else if (memcmp(iface->u.wds.remote_addr, remote_addr, |
| 166 | ETH_ALEN) == 0) { |
| 167 | match = iface; |
| 168 | break; |
| 169 | } |
| 170 | } |
| 171 | if (!match && empty && !prism2_wds_special_addr(remote_addr)) { |
| 172 | /* take pre-allocated entry into use */ |
| 173 | memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN); |
| 174 | read_unlock_bh(&local->iface_lock); |
| 175 | printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n", |
| 176 | local->dev->name, empty->dev->name); |
| 177 | return 0; |
| 178 | } |
| 179 | read_unlock_bh(&local->iface_lock); |
| 180 | |
| 181 | if (!prism2_wds_special_addr(remote_addr)) { |
| 182 | if (match) |
| 183 | return -EEXIST; |
| 184 | hostap_add_sta(local->ap, remote_addr); |
| 185 | } |
| 186 | |
| 187 | if (local->wds_connections >= local->wds_max_connections) |
| 188 | return -ENOBUFS; |
| 189 | |
| 190 | /* verify that there is room for wds# postfix in the interface name */ |
| 191 | if (strlen(local->dev->name) > IFNAMSIZ - 5) { |
| 192 | printk(KERN_DEBUG "'%s' too long base device name\n", |
| 193 | local->dev->name); |
| 194 | return -EINVAL; |
| 195 | } |
| 196 | |
| 197 | dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked, |
| 198 | local->ddev->name, "wds%d"); |
| 199 | if (dev == NULL) |
| 200 | return -ENOMEM; |
| 201 | |
| 202 | iface = netdev_priv(dev); |
| 203 | memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN); |
| 204 | |
| 205 | local->wds_connections++; |
| 206 | |
| 207 | return 0; |
| 208 | } |
| 209 | |
| 210 | |
Adrian Bunk | 5fad5a2 | 2006-01-14 03:09:34 +0100 | [diff] [blame] | 211 | int prism2_wds_del(local_info_t *local, u8 *remote_addr, |
| 212 | int rtnl_locked, int do_not_remove) |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 213 | { |
| 214 | unsigned long flags; |
| 215 | struct list_head *ptr; |
| 216 | struct hostap_interface *iface, *selected = NULL; |
| 217 | |
| 218 | write_lock_irqsave(&local->iface_lock, flags); |
| 219 | list_for_each(ptr, &local->hostap_interfaces) { |
| 220 | iface = list_entry(ptr, struct hostap_interface, list); |
| 221 | if (iface->type != HOSTAP_INTERFACE_WDS) |
| 222 | continue; |
| 223 | |
| 224 | if (memcmp(iface->u.wds.remote_addr, remote_addr, |
| 225 | ETH_ALEN) == 0) { |
| 226 | selected = iface; |
| 227 | break; |
| 228 | } |
| 229 | } |
| 230 | if (selected && !do_not_remove) |
| 231 | list_del(&selected->list); |
| 232 | write_unlock_irqrestore(&local->iface_lock, flags); |
| 233 | |
| 234 | if (selected) { |
| 235 | if (do_not_remove) |
| 236 | memset(selected->u.wds.remote_addr, 0, ETH_ALEN); |
| 237 | else { |
| 238 | hostap_remove_interface(selected->dev, rtnl_locked, 0); |
| 239 | local->wds_connections--; |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | return selected ? 0 : -ENODEV; |
| 244 | } |
| 245 | |
| 246 | |
| 247 | u16 hostap_tx_callback_register(local_info_t *local, |
| 248 | void (*func)(struct sk_buff *, int ok, void *), |
| 249 | void *data) |
| 250 | { |
| 251 | unsigned long flags; |
| 252 | struct hostap_tx_callback_info *entry; |
| 253 | |
| 254 | entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry), |
| 255 | GFP_ATOMIC); |
| 256 | if (entry == NULL) |
| 257 | return 0; |
| 258 | |
| 259 | entry->func = func; |
| 260 | entry->data = data; |
| 261 | |
| 262 | spin_lock_irqsave(&local->lock, flags); |
| 263 | entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1; |
| 264 | entry->next = local->tx_callback; |
| 265 | local->tx_callback = entry; |
| 266 | spin_unlock_irqrestore(&local->lock, flags); |
| 267 | |
| 268 | return entry->idx; |
| 269 | } |
| 270 | |
| 271 | |
| 272 | int hostap_tx_callback_unregister(local_info_t *local, u16 idx) |
| 273 | { |
| 274 | unsigned long flags; |
| 275 | struct hostap_tx_callback_info *cb, *prev = NULL; |
| 276 | |
| 277 | spin_lock_irqsave(&local->lock, flags); |
| 278 | cb = local->tx_callback; |
| 279 | while (cb != NULL && cb->idx != idx) { |
| 280 | prev = cb; |
| 281 | cb = cb->next; |
| 282 | } |
| 283 | if (cb) { |
| 284 | if (prev == NULL) |
| 285 | local->tx_callback = cb->next; |
| 286 | else |
| 287 | prev->next = cb->next; |
| 288 | kfree(cb); |
| 289 | } |
| 290 | spin_unlock_irqrestore(&local->lock, flags); |
| 291 | |
| 292 | return cb ? 0 : -1; |
| 293 | } |
| 294 | |
| 295 | |
| 296 | /* val is in host byte order */ |
| 297 | int hostap_set_word(struct net_device *dev, int rid, u16 val) |
| 298 | { |
| 299 | struct hostap_interface *iface; |
| 300 | u16 tmp = cpu_to_le16(val); |
| 301 | iface = netdev_priv(dev); |
| 302 | return iface->local->func->set_rid(dev, rid, &tmp, 2); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | int hostap_set_string(struct net_device *dev, int rid, const char *val) |
| 307 | { |
| 308 | struct hostap_interface *iface; |
| 309 | char buf[MAX_SSID_LEN + 2]; |
| 310 | int len; |
| 311 | |
| 312 | iface = netdev_priv(dev); |
| 313 | len = strlen(val); |
| 314 | if (len > MAX_SSID_LEN) |
| 315 | return -1; |
| 316 | memset(buf, 0, sizeof(buf)); |
| 317 | buf[0] = len; /* little endian 16 bit word */ |
| 318 | memcpy(buf + 2, val, len); |
| 319 | |
| 320 | return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2); |
| 321 | } |
| 322 | |
| 323 | |
| 324 | u16 hostap_get_porttype(local_info_t *local) |
| 325 | { |
| 326 | if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc) |
| 327 | return HFA384X_PORTTYPE_PSEUDO_IBSS; |
| 328 | if (local->iw_mode == IW_MODE_ADHOC) |
| 329 | return HFA384X_PORTTYPE_IBSS; |
| 330 | if (local->iw_mode == IW_MODE_INFRA) |
| 331 | return HFA384X_PORTTYPE_BSS; |
| 332 | if (local->iw_mode == IW_MODE_REPEAT) |
| 333 | return HFA384X_PORTTYPE_WDS; |
| 334 | if (local->iw_mode == IW_MODE_MONITOR) |
| 335 | return HFA384X_PORTTYPE_PSEUDO_IBSS; |
| 336 | return HFA384X_PORTTYPE_HOSTAP; |
| 337 | } |
| 338 | |
| 339 | |
| 340 | int hostap_set_encryption(local_info_t *local) |
| 341 | { |
| 342 | u16 val, old_val; |
| 343 | int i, keylen, len, idx; |
| 344 | char keybuf[WEP_KEY_LEN + 1]; |
| 345 | enum { NONE, WEP, OTHER } encrypt_type; |
| 346 | |
| 347 | idx = local->tx_keyidx; |
| 348 | if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL) |
| 349 | encrypt_type = NONE; |
| 350 | else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0) |
| 351 | encrypt_type = WEP; |
| 352 | else |
| 353 | encrypt_type = OTHER; |
| 354 | |
| 355 | if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2, |
| 356 | 1) < 0) { |
| 357 | printk(KERN_DEBUG "Could not read current WEP flags.\n"); |
| 358 | goto fail; |
| 359 | } |
| 360 | le16_to_cpus(&val); |
| 361 | old_val = val; |
| 362 | |
| 363 | if (encrypt_type != NONE || local->privacy_invoked) |
| 364 | val |= HFA384X_WEPFLAGS_PRIVACYINVOKED; |
| 365 | else |
| 366 | val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED; |
| 367 | |
| 368 | if (local->open_wep || encrypt_type == NONE || |
| 369 | ((local->ieee_802_1x || local->wpa) && local->host_decrypt)) |
| 370 | val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; |
| 371 | else |
| 372 | val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED; |
| 373 | |
| 374 | if ((encrypt_type != NONE || local->privacy_invoked) && |
| 375 | (encrypt_type == OTHER || local->host_encrypt)) |
| 376 | val |= HFA384X_WEPFLAGS_HOSTENCRYPT; |
| 377 | else |
| 378 | val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT; |
| 379 | if ((encrypt_type != NONE || local->privacy_invoked) && |
| 380 | (encrypt_type == OTHER || local->host_decrypt)) |
| 381 | val |= HFA384X_WEPFLAGS_HOSTDECRYPT; |
| 382 | else |
| 383 | val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT; |
| 384 | |
| 385 | if (val != old_val && |
| 386 | hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) { |
| 387 | printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n", |
| 388 | val); |
| 389 | goto fail; |
| 390 | } |
| 391 | |
| 392 | if (encrypt_type != WEP) |
| 393 | return 0; |
| 394 | |
| 395 | /* 104-bit support seems to require that all the keys are set to the |
| 396 | * same keylen */ |
| 397 | keylen = 6; /* first 5 octets */ |
| 398 | len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), |
| 399 | NULL, local->crypt[idx]->priv); |
| 400 | if (idx >= 0 && idx < WEP_KEYS && len > 5) |
| 401 | keylen = WEP_KEY_LEN + 1; /* first 13 octets */ |
| 402 | |
| 403 | for (i = 0; i < WEP_KEYS; i++) { |
| 404 | memset(keybuf, 0, sizeof(keybuf)); |
| 405 | if (local->crypt[i]) { |
| 406 | (void) local->crypt[i]->ops->get_key( |
| 407 | keybuf, sizeof(keybuf), |
| 408 | NULL, local->crypt[i]->priv); |
| 409 | } |
| 410 | if (local->func->set_rid(local->dev, |
| 411 | HFA384X_RID_CNFDEFAULTKEY0 + i, |
| 412 | keybuf, keylen)) { |
| 413 | printk(KERN_DEBUG "Could not set key %d (len=%d)\n", |
| 414 | i, keylen); |
| 415 | goto fail; |
| 416 | } |
| 417 | } |
| 418 | if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) { |
| 419 | printk(KERN_DEBUG "Could not set default keyid %d\n", idx); |
| 420 | goto fail; |
| 421 | } |
| 422 | |
| 423 | return 0; |
| 424 | |
| 425 | fail: |
| 426 | printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name); |
| 427 | return -1; |
| 428 | } |
| 429 | |
| 430 | |
| 431 | int hostap_set_antsel(local_info_t *local) |
| 432 | { |
| 433 | u16 val; |
| 434 | int ret = 0; |
| 435 | |
| 436 | if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH && |
| 437 | local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, |
| 438 | HFA386X_CR_TX_CONFIGURE, |
| 439 | NULL, &val) == 0) { |
| 440 | val &= ~(BIT(2) | BIT(1)); |
| 441 | switch (local->antsel_tx) { |
| 442 | case HOSTAP_ANTSEL_DIVERSITY: |
| 443 | val |= BIT(1); |
| 444 | break; |
| 445 | case HOSTAP_ANTSEL_LOW: |
| 446 | break; |
| 447 | case HOSTAP_ANTSEL_HIGH: |
| 448 | val |= BIT(2); |
| 449 | break; |
| 450 | } |
| 451 | |
| 452 | if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, |
| 453 | HFA386X_CR_TX_CONFIGURE, &val, NULL)) { |
| 454 | printk(KERN_INFO "%s: setting TX AntSel failed\n", |
| 455 | local->dev->name); |
| 456 | ret = -1; |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH && |
| 461 | local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF, |
| 462 | HFA386X_CR_RX_CONFIGURE, |
| 463 | NULL, &val) == 0) { |
| 464 | val &= ~(BIT(1) | BIT(0)); |
| 465 | switch (local->antsel_rx) { |
| 466 | case HOSTAP_ANTSEL_DIVERSITY: |
| 467 | break; |
| 468 | case HOSTAP_ANTSEL_LOW: |
| 469 | val |= BIT(0); |
| 470 | break; |
| 471 | case HOSTAP_ANTSEL_HIGH: |
| 472 | val |= BIT(0) | BIT(1); |
| 473 | break; |
| 474 | } |
| 475 | |
| 476 | if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF, |
| 477 | HFA386X_CR_RX_CONFIGURE, &val, NULL)) { |
| 478 | printk(KERN_INFO "%s: setting RX AntSel failed\n", |
| 479 | local->dev->name); |
| 480 | ret = -1; |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | return ret; |
| 485 | } |
| 486 | |
| 487 | |
| 488 | int hostap_set_roaming(local_info_t *local) |
| 489 | { |
| 490 | u16 val; |
| 491 | |
| 492 | switch (local->host_roaming) { |
| 493 | case 1: |
| 494 | val = HFA384X_ROAMING_HOST; |
| 495 | break; |
| 496 | case 2: |
| 497 | val = HFA384X_ROAMING_DISABLED; |
| 498 | break; |
| 499 | case 0: |
| 500 | default: |
| 501 | val = HFA384X_ROAMING_FIRMWARE; |
| 502 | break; |
| 503 | } |
| 504 | |
| 505 | return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val); |
| 506 | } |
| 507 | |
| 508 | |
| 509 | int hostap_set_auth_algs(local_info_t *local) |
| 510 | { |
| 511 | int val = local->auth_algs; |
| 512 | /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication |
| 513 | * set to include both Open and Shared Key flags. It tries to use |
| 514 | * Shared Key authentication in that case even if WEP keys are not |
| 515 | * configured.. STA f/w v0.7.6 is able to handle such configuration, |
| 516 | * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */ |
| 517 | if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) && |
| 518 | val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY) |
| 519 | val = PRISM2_AUTH_OPEN; |
| 520 | |
| 521 | if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) { |
| 522 | printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x " |
| 523 | "failed\n", local->dev->name, local->auth_algs); |
| 524 | return -EINVAL; |
| 525 | } |
| 526 | |
| 527 | return 0; |
| 528 | } |
| 529 | |
| 530 | |
| 531 | void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx) |
| 532 | { |
| 533 | u16 status, fc; |
| 534 | |
| 535 | status = __le16_to_cpu(rx->status); |
| 536 | |
| 537 | printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, " |
| 538 | "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; " |
| 539 | "jiffies=%ld\n", |
| 540 | name, status, (status >> 8) & 0x07, status >> 13, status & 1, |
| 541 | rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies); |
| 542 | |
| 543 | fc = __le16_to_cpu(rx->frame_control); |
| 544 | printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " |
| 545 | "data_len=%d%s%s\n", |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 546 | fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4, |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 547 | __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl), |
| 548 | __le16_to_cpu(rx->data_len), |
Jouni Malinen | b2f4a2e | 2005-08-14 21:00:01 -0700 | [diff] [blame] | 549 | fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "", |
| 550 | fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : ""); |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 551 | |
| 552 | printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" |
| 553 | MACSTR "\n", |
| 554 | MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3), |
| 555 | MAC2STR(rx->addr4)); |
| 556 | |
| 557 | printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", |
| 558 | MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr), |
| 559 | __be16_to_cpu(rx->len)); |
| 560 | } |
| 561 | |
| 562 | |
| 563 | void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx) |
| 564 | { |
| 565 | u16 fc; |
| 566 | |
| 567 | printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d " |
| 568 | "tx_control=0x%04x; jiffies=%ld\n", |
| 569 | name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate, |
| 570 | __le16_to_cpu(tx->tx_control), jiffies); |
| 571 | |
| 572 | fc = __le16_to_cpu(tx->frame_control); |
| 573 | printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x " |
| 574 | "data_len=%d%s%s\n", |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 575 | fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4, |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 576 | __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl), |
| 577 | __le16_to_cpu(tx->data_len), |
Jouni Malinen | b2f4a2e | 2005-08-14 21:00:01 -0700 | [diff] [blame] | 578 | fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "", |
| 579 | fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : ""); |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 580 | |
| 581 | printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4=" |
| 582 | MACSTR "\n", |
| 583 | MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3), |
| 584 | MAC2STR(tx->addr4)); |
| 585 | |
| 586 | printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n", |
| 587 | MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr), |
| 588 | __be16_to_cpu(tx->len)); |
| 589 | } |
| 590 | |
| 591 | |
| 592 | int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr) |
| 593 | { |
| 594 | memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */ |
| 595 | return ETH_ALEN; |
| 596 | } |
| 597 | |
| 598 | |
| 599 | int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr) |
| 600 | { |
| 601 | if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) { |
| 602 | memcpy(haddr, skb->mac.raw + |
| 603 | sizeof(struct linux_wlan_ng_prism_hdr) + 10, |
| 604 | ETH_ALEN); /* addr2 */ |
| 605 | } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */ |
| 606 | memcpy(haddr, skb->mac.raw + |
| 607 | sizeof(struct linux_wlan_ng_cap_hdr) + 10, |
| 608 | ETH_ALEN); /* addr2 */ |
| 609 | } |
| 610 | return ETH_ALEN; |
| 611 | } |
| 612 | |
| 613 | |
| 614 | int hostap_80211_get_hdrlen(u16 fc) |
| 615 | { |
| 616 | int hdrlen = 24; |
| 617 | |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 618 | switch (WLAN_FC_GET_TYPE(fc)) { |
| 619 | case IEEE80211_FTYPE_DATA: |
Jouni Malinen | b2f4a2e | 2005-08-14 21:00:01 -0700 | [diff] [blame] | 620 | if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 621 | hdrlen = 30; /* Addr4 */ |
| 622 | break; |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 623 | case IEEE80211_FTYPE_CTL: |
| 624 | switch (WLAN_FC_GET_STYPE(fc)) { |
| 625 | case IEEE80211_STYPE_CTS: |
| 626 | case IEEE80211_STYPE_ACK: |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 627 | hdrlen = 10; |
| 628 | break; |
| 629 | default: |
| 630 | hdrlen = 16; |
| 631 | break; |
| 632 | } |
| 633 | break; |
| 634 | } |
| 635 | |
| 636 | return hdrlen; |
| 637 | } |
| 638 | |
| 639 | |
| 640 | struct net_device_stats *hostap_get_stats(struct net_device *dev) |
| 641 | { |
| 642 | struct hostap_interface *iface; |
| 643 | iface = netdev_priv(dev); |
| 644 | return &iface->stats; |
| 645 | } |
| 646 | |
| 647 | |
| 648 | static int prism2_close(struct net_device *dev) |
| 649 | { |
| 650 | struct hostap_interface *iface; |
| 651 | local_info_t *local; |
| 652 | |
| 653 | PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name); |
| 654 | |
| 655 | iface = netdev_priv(dev); |
| 656 | local = iface->local; |
| 657 | |
| 658 | if (dev == local->ddev) { |
| 659 | prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING); |
| 660 | } |
| 661 | #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT |
| 662 | if (!local->hostapd && dev == local->dev && |
| 663 | (!local->func->card_present || local->func->card_present(local)) && |
| 664 | local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER) |
| 665 | hostap_deauth_all_stas(dev, local->ap, 1); |
| 666 | #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */ |
| 667 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 668 | if (dev == local->dev) { |
| 669 | local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL); |
| 670 | } |
| 671 | |
| 672 | if (netif_running(dev)) { |
| 673 | netif_stop_queue(dev); |
| 674 | netif_device_detach(dev); |
| 675 | } |
| 676 | |
| 677 | flush_scheduled_work(); |
| 678 | |
| 679 | module_put(local->hw_module); |
| 680 | |
| 681 | local->num_dev_open--; |
| 682 | |
| 683 | if (dev != local->dev && local->dev->flags & IFF_UP && |
| 684 | local->master_dev_auto_open && local->num_dev_open == 1) { |
| 685 | /* Close master radio interface automatically if it was also |
| 686 | * opened automatically and we are now closing the last |
| 687 | * remaining non-master device. */ |
| 688 | dev_close(local->dev); |
| 689 | } |
| 690 | |
| 691 | return 0; |
| 692 | } |
| 693 | |
| 694 | |
| 695 | static int prism2_open(struct net_device *dev) |
| 696 | { |
| 697 | struct hostap_interface *iface; |
| 698 | local_info_t *local; |
| 699 | |
| 700 | PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name); |
| 701 | |
| 702 | iface = netdev_priv(dev); |
| 703 | local = iface->local; |
| 704 | |
| 705 | if (local->no_pri) { |
| 706 | printk(KERN_DEBUG "%s: could not set interface UP - no PRI " |
| 707 | "f/w\n", dev->name); |
| 708 | return 1; |
| 709 | } |
| 710 | |
| 711 | if ((local->func->card_present && !local->func->card_present(local)) || |
| 712 | local->hw_downloading) |
| 713 | return -ENODEV; |
| 714 | |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 715 | if (!try_module_get(local->hw_module)) |
| 716 | return -ENODEV; |
| 717 | local->num_dev_open++; |
| 718 | |
| 719 | if (!local->dev_enabled && local->func->hw_enable(dev, 1)) { |
| 720 | printk(KERN_WARNING "%s: could not enable MAC port\n", |
| 721 | dev->name); |
| 722 | prism2_close(dev); |
| 723 | return 1; |
| 724 | } |
| 725 | if (!local->dev_enabled) |
| 726 | prism2_callback(local, PRISM2_CALLBACK_ENABLE); |
| 727 | local->dev_enabled = 1; |
| 728 | |
| 729 | if (dev != local->dev && !(local->dev->flags & IFF_UP)) { |
| 730 | /* Master radio interface is needed for all operation, so open |
| 731 | * it automatically when any virtual net_device is opened. */ |
| 732 | local->master_dev_auto_open = 1; |
| 733 | dev_open(local->dev); |
| 734 | } |
| 735 | |
| 736 | netif_device_attach(dev); |
| 737 | netif_start_queue(dev); |
| 738 | |
| 739 | return 0; |
| 740 | } |
| 741 | |
| 742 | |
| 743 | static int prism2_set_mac_address(struct net_device *dev, void *p) |
| 744 | { |
| 745 | struct hostap_interface *iface; |
| 746 | local_info_t *local; |
| 747 | struct list_head *ptr; |
| 748 | struct sockaddr *addr = p; |
| 749 | |
| 750 | iface = netdev_priv(dev); |
| 751 | local = iface->local; |
| 752 | |
| 753 | if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data, |
| 754 | ETH_ALEN) < 0 || local->func->reset_port(dev)) |
| 755 | return -EINVAL; |
| 756 | |
| 757 | read_lock_bh(&local->iface_lock); |
| 758 | list_for_each(ptr, &local->hostap_interfaces) { |
| 759 | iface = list_entry(ptr, struct hostap_interface, list); |
| 760 | memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 761 | } |
| 762 | memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 763 | read_unlock_bh(&local->iface_lock); |
| 764 | |
| 765 | return 0; |
| 766 | } |
| 767 | |
| 768 | |
| 769 | /* TODO: to be further implemented as soon as Prism2 fully supports |
| 770 | * GroupAddresses and correct documentation is available */ |
| 771 | void hostap_set_multicast_list_queue(void *data) |
| 772 | { |
| 773 | struct net_device *dev = (struct net_device *) data; |
| 774 | struct hostap_interface *iface; |
| 775 | local_info_t *local; |
| 776 | |
| 777 | iface = netdev_priv(dev); |
| 778 | local = iface->local; |
| 779 | if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE, |
| 780 | local->is_promisc)) { |
| 781 | printk(KERN_INFO "%s: %sabling promiscuous mode failed\n", |
| 782 | dev->name, local->is_promisc ? "en" : "dis"); |
| 783 | } |
| 784 | } |
| 785 | |
| 786 | |
| 787 | static void hostap_set_multicast_list(struct net_device *dev) |
| 788 | { |
| 789 | #if 0 |
| 790 | /* FIX: promiscuous mode seems to be causing a lot of problems with |
| 791 | * some station firmware versions (FCSErr frames, invalid MACPort, etc. |
| 792 | * corrupted incoming frames). This code is now commented out while the |
| 793 | * problems are investigated. */ |
| 794 | struct hostap_interface *iface; |
| 795 | local_info_t *local; |
| 796 | |
| 797 | iface = netdev_priv(dev); |
| 798 | local = iface->local; |
| 799 | if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) { |
| 800 | local->is_promisc = 1; |
| 801 | } else { |
| 802 | local->is_promisc = 0; |
| 803 | } |
| 804 | |
| 805 | schedule_work(&local->set_multicast_list_queue); |
| 806 | #endif |
| 807 | } |
| 808 | |
| 809 | |
| 810 | static int prism2_change_mtu(struct net_device *dev, int new_mtu) |
| 811 | { |
| 812 | if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU) |
| 813 | return -EINVAL; |
| 814 | |
| 815 | dev->mtu = new_mtu; |
| 816 | return 0; |
| 817 | } |
| 818 | |
| 819 | |
| 820 | static void prism2_tx_timeout(struct net_device *dev) |
| 821 | { |
| 822 | struct hostap_interface *iface; |
| 823 | local_info_t *local; |
| 824 | struct hfa384x_regs regs; |
| 825 | |
| 826 | iface = netdev_priv(dev); |
| 827 | local = iface->local; |
| 828 | |
| 829 | printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name); |
| 830 | netif_stop_queue(local->dev); |
| 831 | |
| 832 | local->func->read_regs(dev, ®s); |
| 833 | printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x " |
| 834 | "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n", |
| 835 | dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1, |
| 836 | regs.swsupport0); |
| 837 | |
| 838 | local->func->schedule_reset(local); |
| 839 | } |
| 840 | |
| 841 | |
| 842 | void hostap_setup_dev(struct net_device *dev, local_info_t *local, |
| 843 | int main_dev) |
| 844 | { |
| 845 | struct hostap_interface *iface; |
| 846 | |
| 847 | iface = netdev_priv(dev); |
| 848 | ether_setup(dev); |
| 849 | |
| 850 | /* kernel callbacks */ |
| 851 | dev->get_stats = hostap_get_stats; |
| 852 | if (iface) { |
| 853 | /* Currently, we point to the proper spy_data only on |
| 854 | * the main_dev. This could be fixed. Jean II */ |
| 855 | iface->wireless_data.spy_data = &iface->spy_data; |
| 856 | dev->wireless_data = &iface->wireless_data; |
| 857 | } |
| 858 | dev->wireless_handlers = |
| 859 | (struct iw_handler_def *) &hostap_iw_handler_def; |
| 860 | dev->do_ioctl = hostap_ioctl; |
| 861 | dev->open = prism2_open; |
| 862 | dev->stop = prism2_close; |
| 863 | dev->hard_start_xmit = hostap_data_start_xmit; |
| 864 | dev->set_mac_address = prism2_set_mac_address; |
| 865 | dev->set_multicast_list = hostap_set_multicast_list; |
| 866 | dev->change_mtu = prism2_change_mtu; |
| 867 | dev->tx_timeout = prism2_tx_timeout; |
| 868 | dev->watchdog_timeo = TX_TIMEOUT; |
| 869 | |
| 870 | dev->mtu = local->mtu; |
| 871 | if (!main_dev) { |
| 872 | /* use main radio device queue */ |
| 873 | dev->tx_queue_len = 0; |
| 874 | } |
| 875 | |
| 876 | SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops); |
| 877 | |
| 878 | netif_stop_queue(dev); |
| 879 | } |
| 880 | |
| 881 | |
| 882 | static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked) |
| 883 | { |
| 884 | struct net_device *dev = local->dev; |
| 885 | |
| 886 | if (local->apdev) |
| 887 | return -EEXIST; |
| 888 | |
| 889 | printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name); |
| 890 | |
| 891 | local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP, |
| 892 | rtnl_locked, local->ddev->name, |
| 893 | "ap"); |
| 894 | if (local->apdev == NULL) |
| 895 | return -ENOMEM; |
| 896 | |
| 897 | local->apdev->hard_start_xmit = hostap_mgmt_start_xmit; |
| 898 | local->apdev->type = ARPHRD_IEEE80211; |
| 899 | local->apdev->hard_header_parse = hostap_80211_header_parse; |
| 900 | |
| 901 | return 0; |
| 902 | } |
| 903 | |
| 904 | |
| 905 | static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked) |
| 906 | { |
| 907 | struct net_device *dev = local->dev; |
| 908 | |
| 909 | printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); |
| 910 | |
| 911 | hostap_remove_interface(local->apdev, rtnl_locked, 1); |
| 912 | local->apdev = NULL; |
| 913 | |
| 914 | return 0; |
| 915 | } |
| 916 | |
| 917 | |
| 918 | static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked) |
| 919 | { |
| 920 | struct net_device *dev = local->dev; |
| 921 | |
| 922 | if (local->stadev) |
| 923 | return -EEXIST; |
| 924 | |
| 925 | printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name); |
| 926 | |
| 927 | local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA, |
| 928 | rtnl_locked, local->ddev->name, |
| 929 | "sta"); |
| 930 | if (local->stadev == NULL) |
| 931 | return -ENOMEM; |
| 932 | |
| 933 | return 0; |
| 934 | } |
| 935 | |
| 936 | |
| 937 | static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked) |
| 938 | { |
| 939 | struct net_device *dev = local->dev; |
| 940 | |
| 941 | printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name); |
| 942 | |
| 943 | hostap_remove_interface(local->stadev, rtnl_locked, 1); |
| 944 | local->stadev = NULL; |
| 945 | |
| 946 | return 0; |
| 947 | } |
| 948 | |
| 949 | |
| 950 | int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked) |
| 951 | { |
| 952 | int ret; |
| 953 | |
| 954 | if (val < 0 || val > 1) |
| 955 | return -EINVAL; |
| 956 | |
| 957 | if (local->hostapd == val) |
| 958 | return 0; |
| 959 | |
| 960 | if (val) { |
| 961 | ret = hostap_enable_hostapd(local, rtnl_locked); |
| 962 | if (ret == 0) |
| 963 | local->hostapd = 1; |
| 964 | } else { |
| 965 | local->hostapd = 0; |
| 966 | ret = hostap_disable_hostapd(local, rtnl_locked); |
| 967 | if (ret != 0) |
| 968 | local->hostapd = 1; |
| 969 | } |
| 970 | |
| 971 | return ret; |
| 972 | } |
| 973 | |
| 974 | |
| 975 | int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked) |
| 976 | { |
| 977 | int ret; |
| 978 | |
| 979 | if (val < 0 || val > 1) |
| 980 | return -EINVAL; |
| 981 | |
| 982 | if (local->hostapd_sta == val) |
| 983 | return 0; |
| 984 | |
| 985 | if (val) { |
| 986 | ret = hostap_enable_hostapd_sta(local, rtnl_locked); |
| 987 | if (ret == 0) |
| 988 | local->hostapd_sta = 1; |
| 989 | } else { |
| 990 | local->hostapd_sta = 0; |
| 991 | ret = hostap_disable_hostapd_sta(local, rtnl_locked); |
| 992 | if (ret != 0) |
| 993 | local->hostapd_sta = 1; |
| 994 | } |
| 995 | |
| 996 | |
| 997 | return ret; |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | int prism2_update_comms_qual(struct net_device *dev) |
| 1002 | { |
| 1003 | struct hostap_interface *iface; |
| 1004 | local_info_t *local; |
| 1005 | int ret = 0; |
| 1006 | struct hfa384x_comms_quality sq; |
| 1007 | |
| 1008 | iface = netdev_priv(dev); |
| 1009 | local = iface->local; |
| 1010 | if (!local->sta_fw_ver) |
| 1011 | ret = -1; |
| 1012 | else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) { |
| 1013 | if (local->func->get_rid(local->dev, |
| 1014 | HFA384X_RID_DBMCOMMSQUALITY, |
| 1015 | &sq, sizeof(sq), 1) >= 0) { |
| 1016 | local->comms_qual = (s16) le16_to_cpu(sq.comm_qual); |
| 1017 | local->avg_signal = (s16) le16_to_cpu(sq.signal_level); |
| 1018 | local->avg_noise = (s16) le16_to_cpu(sq.noise_level); |
| 1019 | local->last_comms_qual_update = jiffies; |
| 1020 | } else |
| 1021 | ret = -1; |
| 1022 | } else { |
| 1023 | if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY, |
| 1024 | &sq, sizeof(sq), 1) >= 0) { |
| 1025 | local->comms_qual = le16_to_cpu(sq.comm_qual); |
| 1026 | local->avg_signal = HFA384X_LEVEL_TO_dBm( |
| 1027 | le16_to_cpu(sq.signal_level)); |
| 1028 | local->avg_noise = HFA384X_LEVEL_TO_dBm( |
| 1029 | le16_to_cpu(sq.noise_level)); |
| 1030 | local->last_comms_qual_update = jiffies; |
| 1031 | } else |
| 1032 | ret = -1; |
| 1033 | } |
| 1034 | |
| 1035 | return ret; |
| 1036 | } |
| 1037 | |
| 1038 | |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 1039 | int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype, |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1040 | u8 *body, size_t bodylen) |
| 1041 | { |
| 1042 | struct sk_buff *skb; |
| 1043 | struct hostap_ieee80211_mgmt *mgmt; |
| 1044 | struct hostap_skb_tx_data *meta; |
| 1045 | struct net_device *dev = local->dev; |
| 1046 | |
| 1047 | skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen); |
| 1048 | if (skb == NULL) |
| 1049 | return -ENOMEM; |
| 1050 | |
| 1051 | mgmt = (struct hostap_ieee80211_mgmt *) |
| 1052 | skb_put(skb, IEEE80211_MGMT_HDR_LEN); |
| 1053 | memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN); |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 1054 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1055 | memcpy(mgmt->da, dst, ETH_ALEN); |
| 1056 | memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); |
| 1057 | memcpy(mgmt->bssid, dst, ETH_ALEN); |
| 1058 | if (body) |
| 1059 | memcpy(skb_put(skb, bodylen), body, bodylen); |
| 1060 | |
| 1061 | meta = (struct hostap_skb_tx_data *) skb->cb; |
| 1062 | memset(meta, 0, sizeof(*meta)); |
| 1063 | meta->magic = HOSTAP_SKB_TX_DATA_MAGIC; |
| 1064 | meta->iface = netdev_priv(dev); |
| 1065 | |
| 1066 | skb->dev = dev; |
| 1067 | skb->mac.raw = skb->nh.raw = skb->data; |
| 1068 | dev_queue_xmit(skb); |
| 1069 | |
| 1070 | return 0; |
| 1071 | } |
| 1072 | |
| 1073 | |
| 1074 | int prism2_sta_deauth(local_info_t *local, u16 reason) |
| 1075 | { |
| 1076 | union iwreq_data wrqu; |
| 1077 | int ret; |
| 1078 | |
| 1079 | if (local->iw_mode != IW_MODE_INFRA || |
| 1080 | memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 || |
| 1081 | memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0) |
| 1082 | return 0; |
| 1083 | |
| 1084 | reason = cpu_to_le16(reason); |
Jouni Malinen | 4339d32 | 2005-08-14 19:08:44 -0700 | [diff] [blame] | 1085 | ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH, |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1086 | (u8 *) &reason, 2); |
| 1087 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); |
| 1088 | wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL); |
| 1089 | return ret; |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | struct proc_dir_entry *hostap_proc; |
| 1094 | |
| 1095 | static int __init hostap_init(void) |
| 1096 | { |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1097 | if (proc_net != NULL) { |
| 1098 | hostap_proc = proc_mkdir("hostap", proc_net); |
| 1099 | if (!hostap_proc) |
| 1100 | printk(KERN_WARNING "Failed to mkdir " |
| 1101 | "/proc/net/hostap\n"); |
| 1102 | } else |
| 1103 | hostap_proc = NULL; |
| 1104 | |
| 1105 | return 0; |
| 1106 | } |
| 1107 | |
| 1108 | |
| 1109 | static void __exit hostap_exit(void) |
| 1110 | { |
| 1111 | if (hostap_proc != NULL) { |
| 1112 | hostap_proc = NULL; |
| 1113 | remove_proc_entry("hostap", proc_net); |
| 1114 | } |
Jouni Malinen | ff1d276 | 2005-05-12 22:54:16 -0400 | [diff] [blame] | 1115 | } |
| 1116 | |
| 1117 | |
| 1118 | EXPORT_SYMBOL(hostap_set_word); |
| 1119 | EXPORT_SYMBOL(hostap_set_string); |
| 1120 | EXPORT_SYMBOL(hostap_get_porttype); |
| 1121 | EXPORT_SYMBOL(hostap_set_encryption); |
| 1122 | EXPORT_SYMBOL(hostap_set_antsel); |
| 1123 | EXPORT_SYMBOL(hostap_set_roaming); |
| 1124 | EXPORT_SYMBOL(hostap_set_auth_algs); |
| 1125 | EXPORT_SYMBOL(hostap_dump_rx_header); |
| 1126 | EXPORT_SYMBOL(hostap_dump_tx_header); |
| 1127 | EXPORT_SYMBOL(hostap_80211_header_parse); |
| 1128 | EXPORT_SYMBOL(hostap_80211_prism_header_parse); |
| 1129 | EXPORT_SYMBOL(hostap_80211_get_hdrlen); |
| 1130 | EXPORT_SYMBOL(hostap_get_stats); |
| 1131 | EXPORT_SYMBOL(hostap_setup_dev); |
| 1132 | EXPORT_SYMBOL(hostap_proc); |
| 1133 | EXPORT_SYMBOL(hostap_set_multicast_list_queue); |
| 1134 | EXPORT_SYMBOL(hostap_set_hostapd); |
| 1135 | EXPORT_SYMBOL(hostap_set_hostapd_sta); |
| 1136 | EXPORT_SYMBOL(hostap_add_interface); |
| 1137 | EXPORT_SYMBOL(hostap_remove_interface); |
| 1138 | EXPORT_SYMBOL(prism2_update_comms_qual); |
| 1139 | |
| 1140 | module_init(hostap_init); |
| 1141 | module_exit(hostap_exit); |