2 * Host AP (software wireless LAN access point) driver for
3 * Intersil Prism2/2.5/3 - hostap.o module, common routines
5 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
7 * Copyright (c) 2002-2005, Jouni Malinen <j@w1.fi>
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
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/slab.h>
18 #include <linux/proc_fs.h>
19 #include <linux/if_arp.h>
20 #include <linux/delay.h>
21 #include <linux/random.h>
22 #include <linux/workqueue.h>
23 #include <linux/kmod.h>
24 #include <linux/rtnetlink.h>
25 #include <linux/wireless.h>
26 #include <linux/etherdevice.h>
27 #include <net/net_namespace.h>
28 #include <net/iw_handler.h>
29 #include <net/ieee80211.h>
30 #include <net/ieee80211_crypt.h>
31 #include <asm/uaccess.h>
33 #include "hostap_wlan.h"
34 #include "hostap_80211.h"
35 #include "hostap_ap.h"
38 MODULE_AUTHOR("Jouni Malinen");
39 MODULE_DESCRIPTION("Host AP common routines");
40 MODULE_LICENSE("GPL");
42 #define TX_TIMEOUT (2 * HZ)
44 #define PRISM2_MAX_FRAME_SIZE 2304
45 #define PRISM2_MIN_MTU 256
47 #define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
50 struct net_device * hostap_add_interface(struct local_info *local,
51 int type, int rtnl_locked,
55 struct net_device *dev, *mdev;
56 struct hostap_interface *iface;
59 dev = alloc_etherdev(sizeof(struct hostap_interface));
63 iface = netdev_priv(dev);
67 list_add(&iface->list, &local->hostap_interfaces);
70 memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
71 dev->base_addr = mdev->base_addr;
73 dev->mem_start = mdev->mem_start;
74 dev->mem_end = mdev->mem_end;
76 hostap_setup_dev(dev, local, type);
77 dev->destructor = free_netdev;
79 sprintf(dev->name, "%s%s", prefix, name);
84 if (strchr(dev->name, '%'))
85 ret = dev_alloc_name(dev, dev->name);
87 SET_NETDEV_DEV(dev, mdev->dev.parent);
89 ret = register_netdevice(dev);
95 printk(KERN_WARNING "%s: failed to add new netdevice!\n",
101 printk(KERN_DEBUG "%s: registered netdevice %s\n",
102 mdev->name, dev->name);
108 void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
109 int remove_from_list)
111 struct hostap_interface *iface;
116 iface = netdev_priv(dev);
118 if (remove_from_list) {
119 list_del(&iface->list);
122 if (dev == iface->local->ddev)
123 iface->local->ddev = NULL;
124 else if (dev == iface->local->apdev)
125 iface->local->apdev = NULL;
126 else if (dev == iface->local->stadev)
127 iface->local->stadev = NULL;
130 unregister_netdevice(dev);
132 unregister_netdev(dev);
134 /* dev->destructor = free_netdev() will free the device data, including
135 * private data, when removing the device */
139 static inline int prism2_wds_special_addr(u8 *addr)
141 if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
148 int prism2_wds_add(local_info_t *local, u8 *remote_addr,
151 struct net_device *dev;
152 struct list_head *ptr;
153 struct hostap_interface *iface, *empty, *match;
155 empty = match = NULL;
156 read_lock_bh(&local->iface_lock);
157 list_for_each(ptr, &local->hostap_interfaces) {
158 iface = list_entry(ptr, struct hostap_interface, list);
159 if (iface->type != HOSTAP_INTERFACE_WDS)
162 if (prism2_wds_special_addr(iface->u.wds.remote_addr))
164 else if (memcmp(iface->u.wds.remote_addr, remote_addr,
170 if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
171 /* take pre-allocated entry into use */
172 memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
173 read_unlock_bh(&local->iface_lock);
174 printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
175 local->dev->name, empty->dev->name);
178 read_unlock_bh(&local->iface_lock);
180 if (!prism2_wds_special_addr(remote_addr)) {
183 hostap_add_sta(local->ap, remote_addr);
186 if (local->wds_connections >= local->wds_max_connections)
189 /* verify that there is room for wds# postfix in the interface name */
190 if (strlen(local->dev->name) > IFNAMSIZ - 5) {
191 printk(KERN_DEBUG "'%s' too long base device name\n",
196 dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
197 local->ddev->name, "wds%d");
201 iface = netdev_priv(dev);
202 memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
204 local->wds_connections++;
210 int prism2_wds_del(local_info_t *local, u8 *remote_addr,
211 int rtnl_locked, int do_not_remove)
214 struct list_head *ptr;
215 struct hostap_interface *iface, *selected = NULL;
217 write_lock_irqsave(&local->iface_lock, flags);
218 list_for_each(ptr, &local->hostap_interfaces) {
219 iface = list_entry(ptr, struct hostap_interface, list);
220 if (iface->type != HOSTAP_INTERFACE_WDS)
223 if (memcmp(iface->u.wds.remote_addr, remote_addr,
229 if (selected && !do_not_remove)
230 list_del(&selected->list);
231 write_unlock_irqrestore(&local->iface_lock, flags);
235 memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
237 hostap_remove_interface(selected->dev, rtnl_locked, 0);
238 local->wds_connections--;
242 return selected ? 0 : -ENODEV;
246 u16 hostap_tx_callback_register(local_info_t *local,
247 void (*func)(struct sk_buff *, int ok, void *),
251 struct hostap_tx_callback_info *entry;
253 entry = kmalloc(sizeof(*entry),
261 spin_lock_irqsave(&local->lock, flags);
262 entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
263 entry->next = local->tx_callback;
264 local->tx_callback = entry;
265 spin_unlock_irqrestore(&local->lock, flags);
271 int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
274 struct hostap_tx_callback_info *cb, *prev = NULL;
276 spin_lock_irqsave(&local->lock, flags);
277 cb = local->tx_callback;
278 while (cb != NULL && cb->idx != idx) {
284 local->tx_callback = cb->next;
286 prev->next = cb->next;
289 spin_unlock_irqrestore(&local->lock, flags);
295 /* val is in host byte order */
296 int hostap_set_word(struct net_device *dev, int rid, u16 val)
298 struct hostap_interface *iface;
299 __le16 tmp = cpu_to_le16(val);
300 iface = netdev_priv(dev);
301 return iface->local->func->set_rid(dev, rid, &tmp, 2);
305 int hostap_set_string(struct net_device *dev, int rid, const char *val)
307 struct hostap_interface *iface;
308 char buf[MAX_SSID_LEN + 2];
311 iface = netdev_priv(dev);
313 if (len > MAX_SSID_LEN)
315 memset(buf, 0, sizeof(buf));
316 buf[0] = len; /* little endian 16 bit word */
317 memcpy(buf + 2, val, len);
319 return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
323 u16 hostap_get_porttype(local_info_t *local)
325 if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
326 return HFA384X_PORTTYPE_PSEUDO_IBSS;
327 if (local->iw_mode == IW_MODE_ADHOC)
328 return HFA384X_PORTTYPE_IBSS;
329 if (local->iw_mode == IW_MODE_INFRA)
330 return HFA384X_PORTTYPE_BSS;
331 if (local->iw_mode == IW_MODE_REPEAT)
332 return HFA384X_PORTTYPE_WDS;
333 if (local->iw_mode == IW_MODE_MONITOR)
334 return HFA384X_PORTTYPE_PSEUDO_IBSS;
335 return HFA384X_PORTTYPE_HOSTAP;
339 int hostap_set_encryption(local_info_t *local)
342 int i, keylen, len, idx;
343 char keybuf[WEP_KEY_LEN + 1];
344 enum { NONE, WEP, OTHER } encrypt_type;
346 idx = local->tx_keyidx;
347 if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
349 else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
352 encrypt_type = OTHER;
354 if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
356 printk(KERN_DEBUG "Could not read current WEP flags.\n");
362 if (encrypt_type != NONE || local->privacy_invoked)
363 val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
365 val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
367 if (local->open_wep || encrypt_type == NONE ||
368 ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
369 val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
371 val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
373 if ((encrypt_type != NONE || local->privacy_invoked) &&
374 (encrypt_type == OTHER || local->host_encrypt))
375 val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
377 val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
378 if ((encrypt_type != NONE || local->privacy_invoked) &&
379 (encrypt_type == OTHER || local->host_decrypt))
380 val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
382 val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
384 if (val != old_val &&
385 hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
386 printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
391 if (encrypt_type != WEP)
394 /* 104-bit support seems to require that all the keys are set to the
396 keylen = 6; /* first 5 octets */
397 len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
398 NULL, local->crypt[idx]->priv);
399 if (idx >= 0 && idx < WEP_KEYS && len > 5)
400 keylen = WEP_KEY_LEN + 1; /* first 13 octets */
402 for (i = 0; i < WEP_KEYS; i++) {
403 memset(keybuf, 0, sizeof(keybuf));
404 if (local->crypt[i]) {
405 (void) local->crypt[i]->ops->get_key(
406 keybuf, sizeof(keybuf),
407 NULL, local->crypt[i]->priv);
409 if (local->func->set_rid(local->dev,
410 HFA384X_RID_CNFDEFAULTKEY0 + i,
412 printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
417 if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
418 printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
425 printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
430 int hostap_set_antsel(local_info_t *local)
435 if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
436 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
437 HFA386X_CR_TX_CONFIGURE,
439 val &= ~(BIT(2) | BIT(1));
440 switch (local->antsel_tx) {
441 case HOSTAP_ANTSEL_DIVERSITY:
444 case HOSTAP_ANTSEL_LOW:
446 case HOSTAP_ANTSEL_HIGH:
451 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
452 HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
453 printk(KERN_INFO "%s: setting TX AntSel failed\n",
459 if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
460 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
461 HFA386X_CR_RX_CONFIGURE,
463 val &= ~(BIT(1) | BIT(0));
464 switch (local->antsel_rx) {
465 case HOSTAP_ANTSEL_DIVERSITY:
467 case HOSTAP_ANTSEL_LOW:
470 case HOSTAP_ANTSEL_HIGH:
471 val |= BIT(0) | BIT(1);
475 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
476 HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
477 printk(KERN_INFO "%s: setting RX AntSel failed\n",
487 int hostap_set_roaming(local_info_t *local)
491 switch (local->host_roaming) {
493 val = HFA384X_ROAMING_HOST;
496 val = HFA384X_ROAMING_DISABLED;
500 val = HFA384X_ROAMING_FIRMWARE;
504 return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
508 int hostap_set_auth_algs(local_info_t *local)
510 int val = local->auth_algs;
511 /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication
512 * set to include both Open and Shared Key flags. It tries to use
513 * Shared Key authentication in that case even if WEP keys are not
514 * configured.. STA f/w v0.7.6 is able to handle such configuration,
515 * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */
516 if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) &&
517 val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY)
518 val = PRISM2_AUTH_OPEN;
520 if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) {
521 printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x "
522 "failed\n", local->dev->name, local->auth_algs);
530 void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
533 DECLARE_MAC_BUF(mac);
534 DECLARE_MAC_BUF(mac2);
535 DECLARE_MAC_BUF(mac3);
536 DECLARE_MAC_BUF(mac4);
538 status = __le16_to_cpu(rx->status);
540 printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
541 "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
543 name, status, (status >> 8) & 0x07, status >> 13, status & 1,
544 rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
546 fc = __le16_to_cpu(rx->frame_control);
547 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
549 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
550 __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
551 __le16_to_cpu(rx->data_len),
552 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
553 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
555 printk(KERN_DEBUG " A1=%s A2=%s A3=%s A4=%s\n",
556 print_mac(mac, rx->addr1), print_mac(mac2, rx->addr2),
557 print_mac(mac3, rx->addr3), print_mac(mac4, rx->addr4));
559 printk(KERN_DEBUG " dst=%s src=%s len=%d\n",
560 print_mac(mac, rx->dst_addr), print_mac(mac2, rx->src_addr),
561 __be16_to_cpu(rx->len));
565 void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
568 DECLARE_MAC_BUF(mac);
569 DECLARE_MAC_BUF(mac2);
570 DECLARE_MAC_BUF(mac3);
571 DECLARE_MAC_BUF(mac4);
573 printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d "
574 "tx_control=0x%04x; jiffies=%ld\n",
575 name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate,
576 __le16_to_cpu(tx->tx_control), jiffies);
578 fc = __le16_to_cpu(tx->frame_control);
579 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
581 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
582 __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
583 __le16_to_cpu(tx->data_len),
584 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
585 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
587 printk(KERN_DEBUG " A1=%s A2=%s A3=%s A4=%s\n",
588 print_mac(mac, tx->addr1), print_mac(mac2, tx->addr2),
589 print_mac(mac3, tx->addr3), print_mac(mac4, tx->addr4));
591 printk(KERN_DEBUG " dst=%s src=%s len=%d\n",
592 print_mac(mac, tx->dst_addr), print_mac(mac2, tx->src_addr),
593 __be16_to_cpu(tx->len));
597 static int hostap_80211_header_parse(const struct sk_buff *skb,
598 unsigned char *haddr)
600 memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
605 int hostap_80211_get_hdrlen(u16 fc)
609 switch (WLAN_FC_GET_TYPE(fc)) {
610 case IEEE80211_FTYPE_DATA:
611 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
612 hdrlen = 30; /* Addr4 */
614 case IEEE80211_FTYPE_CTL:
615 switch (WLAN_FC_GET_STYPE(fc)) {
616 case IEEE80211_STYPE_CTS:
617 case IEEE80211_STYPE_ACK:
631 struct net_device_stats *hostap_get_stats(struct net_device *dev)
633 struct hostap_interface *iface;
634 iface = netdev_priv(dev);
635 return &iface->stats;
639 static int prism2_close(struct net_device *dev)
641 struct hostap_interface *iface;
644 PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
646 iface = netdev_priv(dev);
647 local = iface->local;
649 if (dev == local->ddev) {
650 prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
652 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
653 if (!local->hostapd && dev == local->dev &&
654 (!local->func->card_present || local->func->card_present(local)) &&
655 local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER)
656 hostap_deauth_all_stas(dev, local->ap, 1);
657 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
659 if (dev == local->dev) {
660 local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
663 if (netif_running(dev)) {
664 netif_stop_queue(dev);
665 netif_device_detach(dev);
668 cancel_work_sync(&local->reset_queue);
669 cancel_work_sync(&local->set_multicast_list_queue);
670 cancel_work_sync(&local->set_tim_queue);
671 #ifndef PRISM2_NO_STATION_MODES
672 cancel_work_sync(&local->info_queue);
674 cancel_work_sync(&local->comms_qual_update);
676 module_put(local->hw_module);
678 local->num_dev_open--;
680 if (dev != local->dev && local->dev->flags & IFF_UP &&
681 local->master_dev_auto_open && local->num_dev_open == 1) {
682 /* Close master radio interface automatically if it was also
683 * opened automatically and we are now closing the last
684 * remaining non-master device. */
685 dev_close(local->dev);
692 static int prism2_open(struct net_device *dev)
694 struct hostap_interface *iface;
697 PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
699 iface = netdev_priv(dev);
700 local = iface->local;
703 printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
708 if ((local->func->card_present && !local->func->card_present(local)) ||
709 local->hw_downloading)
712 if (!try_module_get(local->hw_module))
714 local->num_dev_open++;
716 if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
717 printk(KERN_WARNING "%s: could not enable MAC port\n",
722 if (!local->dev_enabled)
723 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
724 local->dev_enabled = 1;
726 if (dev != local->dev && !(local->dev->flags & IFF_UP)) {
727 /* Master radio interface is needed for all operation, so open
728 * it automatically when any virtual net_device is opened. */
729 local->master_dev_auto_open = 1;
730 dev_open(local->dev);
733 netif_device_attach(dev);
734 netif_start_queue(dev);
740 static int prism2_set_mac_address(struct net_device *dev, void *p)
742 struct hostap_interface *iface;
744 struct list_head *ptr;
745 struct sockaddr *addr = p;
747 iface = netdev_priv(dev);
748 local = iface->local;
750 if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
751 ETH_ALEN) < 0 || local->func->reset_port(dev))
754 read_lock_bh(&local->iface_lock);
755 list_for_each(ptr, &local->hostap_interfaces) {
756 iface = list_entry(ptr, struct hostap_interface, list);
757 memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN);
759 memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
760 read_unlock_bh(&local->iface_lock);
766 /* TODO: to be further implemented as soon as Prism2 fully supports
767 * GroupAddresses and correct documentation is available */
768 void hostap_set_multicast_list_queue(struct work_struct *work)
770 local_info_t *local =
771 container_of(work, local_info_t, set_multicast_list_queue);
772 struct net_device *dev = local->dev;
773 struct hostap_interface *iface;
775 iface = netdev_priv(dev);
776 if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
777 local->is_promisc)) {
778 printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",
779 dev->name, local->is_promisc ? "en" : "dis");
784 static void hostap_set_multicast_list(struct net_device *dev)
787 /* FIX: promiscuous mode seems to be causing a lot of problems with
788 * some station firmware versions (FCSErr frames, invalid MACPort, etc.
789 * corrupted incoming frames). This code is now commented out while the
790 * problems are investigated. */
791 struct hostap_interface *iface;
794 iface = netdev_priv(dev);
795 local = iface->local;
796 if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
797 local->is_promisc = 1;
799 local->is_promisc = 0;
802 schedule_work(&local->set_multicast_list_queue);
807 static int prism2_change_mtu(struct net_device *dev, int new_mtu)
809 if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
817 static void prism2_tx_timeout(struct net_device *dev)
819 struct hostap_interface *iface;
821 struct hfa384x_regs regs;
823 iface = netdev_priv(dev);
824 local = iface->local;
826 printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
827 netif_stop_queue(local->dev);
829 local->func->read_regs(dev, ®s);
830 printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x "
831 "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n",
832 dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1,
835 local->func->schedule_reset(local);
838 const struct header_ops hostap_80211_ops = {
839 .create = eth_header,
840 .rebuild = eth_rebuild_header,
841 .cache = eth_header_cache,
842 .cache_update = eth_header_cache_update,
843 .parse = hostap_80211_header_parse,
845 EXPORT_SYMBOL(hostap_80211_ops);
847 void hostap_setup_dev(struct net_device *dev, local_info_t *local,
850 struct hostap_interface *iface;
852 iface = netdev_priv(dev);
855 /* kernel callbacks */
856 dev->get_stats = hostap_get_stats;
858 /* Currently, we point to the proper spy_data only on
859 * the main_dev. This could be fixed. Jean II */
860 iface->wireless_data.spy_data = &iface->spy_data;
861 dev->wireless_data = &iface->wireless_data;
863 dev->wireless_handlers =
864 (struct iw_handler_def *) &hostap_iw_handler_def;
865 dev->do_ioctl = hostap_ioctl;
866 dev->open = prism2_open;
867 dev->stop = prism2_close;
868 dev->set_mac_address = prism2_set_mac_address;
869 dev->set_multicast_list = hostap_set_multicast_list;
870 dev->change_mtu = prism2_change_mtu;
871 dev->tx_timeout = prism2_tx_timeout;
872 dev->watchdog_timeo = TX_TIMEOUT;
874 if (type == HOSTAP_INTERFACE_AP) {
875 dev->hard_start_xmit = hostap_mgmt_start_xmit;
876 dev->type = ARPHRD_IEEE80211;
877 dev->header_ops = &hostap_80211_ops;
879 dev->hard_start_xmit = hostap_data_start_xmit;
882 dev->mtu = local->mtu;
883 if (type != HOSTAP_INTERFACE_MASTER) {
884 /* use main radio device queue */
885 dev->tx_queue_len = 0;
888 SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
890 netif_stop_queue(dev);
893 static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
895 struct net_device *dev = local->dev;
900 printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
902 local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
903 rtnl_locked, local->ddev->name,
905 if (local->apdev == NULL)
912 static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
914 struct net_device *dev = local->dev;
916 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
918 hostap_remove_interface(local->apdev, rtnl_locked, 1);
925 static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
927 struct net_device *dev = local->dev;
932 printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
934 local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
935 rtnl_locked, local->ddev->name,
937 if (local->stadev == NULL)
944 static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
946 struct net_device *dev = local->dev;
948 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
950 hostap_remove_interface(local->stadev, rtnl_locked, 1);
951 local->stadev = NULL;
957 int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
961 if (val < 0 || val > 1)
964 if (local->hostapd == val)
968 ret = hostap_enable_hostapd(local, rtnl_locked);
973 ret = hostap_disable_hostapd(local, rtnl_locked);
982 int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
986 if (val < 0 || val > 1)
989 if (local->hostapd_sta == val)
993 ret = hostap_enable_hostapd_sta(local, rtnl_locked);
995 local->hostapd_sta = 1;
997 local->hostapd_sta = 0;
998 ret = hostap_disable_hostapd_sta(local, rtnl_locked);
1000 local->hostapd_sta = 1;
1008 int prism2_update_comms_qual(struct net_device *dev)
1010 struct hostap_interface *iface;
1011 local_info_t *local;
1013 struct hfa384x_comms_quality sq;
1015 iface = netdev_priv(dev);
1016 local = iface->local;
1017 if (!local->sta_fw_ver)
1019 else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
1020 if (local->func->get_rid(local->dev,
1021 HFA384X_RID_DBMCOMMSQUALITY,
1022 &sq, sizeof(sq), 1) >= 0) {
1023 local->comms_qual = (s16) le16_to_cpu(sq.comm_qual);
1024 local->avg_signal = (s16) le16_to_cpu(sq.signal_level);
1025 local->avg_noise = (s16) le16_to_cpu(sq.noise_level);
1026 local->last_comms_qual_update = jiffies;
1030 if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY,
1031 &sq, sizeof(sq), 1) >= 0) {
1032 local->comms_qual = le16_to_cpu(sq.comm_qual);
1033 local->avg_signal = HFA384X_LEVEL_TO_dBm(
1034 le16_to_cpu(sq.signal_level));
1035 local->avg_noise = HFA384X_LEVEL_TO_dBm(
1036 le16_to_cpu(sq.noise_level));
1037 local->last_comms_qual_update = jiffies;
1046 int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
1047 u8 *body, size_t bodylen)
1049 struct sk_buff *skb;
1050 struct hostap_ieee80211_mgmt *mgmt;
1051 struct hostap_skb_tx_data *meta;
1052 struct net_device *dev = local->dev;
1054 skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
1058 mgmt = (struct hostap_ieee80211_mgmt *)
1059 skb_put(skb, IEEE80211_MGMT_HDR_LEN);
1060 memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
1061 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1062 memcpy(mgmt->da, dst, ETH_ALEN);
1063 memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
1064 memcpy(mgmt->bssid, dst, ETH_ALEN);
1066 memcpy(skb_put(skb, bodylen), body, bodylen);
1068 meta = (struct hostap_skb_tx_data *) skb->cb;
1069 memset(meta, 0, sizeof(*meta));
1070 meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
1071 meta->iface = netdev_priv(dev);
1074 skb_reset_mac_header(skb);
1075 skb_reset_network_header(skb);
1076 dev_queue_xmit(skb);
1082 int prism2_sta_deauth(local_info_t *local, u16 reason)
1084 union iwreq_data wrqu;
1086 __le16 val = cpu_to_le16(reason);
1088 if (local->iw_mode != IW_MODE_INFRA ||
1089 memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
1090 memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
1093 ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH,
1095 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1096 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
1101 struct proc_dir_entry *hostap_proc;
1103 static int __init hostap_init(void)
1105 if (init_net.proc_net != NULL) {
1106 hostap_proc = proc_mkdir("hostap", init_net.proc_net);
1108 printk(KERN_WARNING "Failed to mkdir "
1109 "/proc/net/hostap\n");
1117 static void __exit hostap_exit(void)
1119 if (hostap_proc != NULL) {
1121 remove_proc_entry("hostap", init_net.proc_net);
1126 EXPORT_SYMBOL(hostap_set_word);
1127 EXPORT_SYMBOL(hostap_set_string);
1128 EXPORT_SYMBOL(hostap_get_porttype);
1129 EXPORT_SYMBOL(hostap_set_encryption);
1130 EXPORT_SYMBOL(hostap_set_antsel);
1131 EXPORT_SYMBOL(hostap_set_roaming);
1132 EXPORT_SYMBOL(hostap_set_auth_algs);
1133 EXPORT_SYMBOL(hostap_dump_rx_header);
1134 EXPORT_SYMBOL(hostap_dump_tx_header);
1135 EXPORT_SYMBOL(hostap_80211_get_hdrlen);
1136 EXPORT_SYMBOL(hostap_get_stats);
1137 EXPORT_SYMBOL(hostap_setup_dev);
1138 EXPORT_SYMBOL(hostap_set_multicast_list_queue);
1139 EXPORT_SYMBOL(hostap_set_hostapd);
1140 EXPORT_SYMBOL(hostap_set_hostapd_sta);
1141 EXPORT_SYMBOL(hostap_add_interface);
1142 EXPORT_SYMBOL(hostap_remove_interface);
1143 EXPORT_SYMBOL(prism2_update_comms_qual);
1145 module_init(hostap_init);
1146 module_exit(hostap_exit);