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 <jkmaline@cc.hut.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/config.h>
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>
27 #include <linux/etherdevice.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");
41 MODULE_VERSION(PRISM2_VERSION);
43 #define TX_TIMEOUT (2 * HZ)
45 #define PRISM2_MAX_FRAME_SIZE 2304
46 #define PRISM2_MIN_MTU 256
48 #define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
51 struct net_device * hostap_add_interface(struct local_info *local,
52 int type, int rtnl_locked,
56 struct net_device *dev, *mdev;
57 struct hostap_interface *iface;
60 dev = alloc_etherdev(sizeof(struct hostap_interface));
64 iface = netdev_priv(dev);
68 list_add(&iface->list, &local->hostap_interfaces);
71 memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
72 dev->base_addr = mdev->base_addr;
74 dev->mem_start = mdev->mem_start;
75 dev->mem_end = mdev->mem_end;
77 hostap_setup_dev(dev, local, 0);
78 dev->destructor = free_netdev;
80 sprintf(dev->name, "%s%s", prefix, name);
85 if (strchr(dev->name, '%'))
86 ret = dev_alloc_name(dev, dev->name);
88 SET_NETDEV_DEV(dev, mdev->class_dev.dev);
90 ret = register_netdevice(dev);
96 printk(KERN_WARNING "%s: failed to add new netdevice!\n",
102 printk(KERN_DEBUG "%s: registered netdevice %s\n",
103 mdev->name, dev->name);
109 void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
110 int remove_from_list)
112 struct hostap_interface *iface;
117 iface = netdev_priv(dev);
119 if (remove_from_list) {
120 list_del(&iface->list);
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;
131 unregister_netdevice(dev);
133 unregister_netdev(dev);
135 /* dev->destructor = free_netdev() will free the device data, including
136 * private data, when removing the device */
140 static inline int prism2_wds_special_addr(u8 *addr)
142 if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
149 int prism2_wds_add(local_info_t *local, u8 *remote_addr,
152 struct net_device *dev;
153 struct list_head *ptr;
154 struct hostap_interface *iface, *empty, *match;
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)
163 if (prism2_wds_special_addr(iface->u.wds.remote_addr))
165 else if (memcmp(iface->u.wds.remote_addr, remote_addr,
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);
179 read_unlock_bh(&local->iface_lock);
181 if (!prism2_wds_special_addr(remote_addr)) {
184 hostap_add_sta(local->ap, remote_addr);
187 if (local->wds_connections >= local->wds_max_connections)
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",
197 dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
198 local->ddev->name, "wds%d");
202 iface = netdev_priv(dev);
203 memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
205 local->wds_connections++;
211 int prism2_wds_del(local_info_t *local, u8 *remote_addr,
212 int rtnl_locked, int do_not_remove)
215 struct list_head *ptr;
216 struct hostap_interface *iface, *selected = NULL;
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)
224 if (memcmp(iface->u.wds.remote_addr, remote_addr,
230 if (selected && !do_not_remove)
231 list_del(&selected->list);
232 write_unlock_irqrestore(&local->iface_lock, flags);
236 memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
238 hostap_remove_interface(selected->dev, rtnl_locked, 0);
239 local->wds_connections--;
243 return selected ? 0 : -ENODEV;
247 u16 hostap_tx_callback_register(local_info_t *local,
248 void (*func)(struct sk_buff *, int ok, void *),
252 struct hostap_tx_callback_info *entry;
254 entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry),
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);
272 int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
275 struct hostap_tx_callback_info *cb, *prev = NULL;
277 spin_lock_irqsave(&local->lock, flags);
278 cb = local->tx_callback;
279 while (cb != NULL && cb->idx != idx) {
285 local->tx_callback = cb->next;
287 prev->next = cb->next;
290 spin_unlock_irqrestore(&local->lock, flags);
296 /* val is in host byte order */
297 int hostap_set_word(struct net_device *dev, int rid, u16 val)
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);
306 int hostap_set_string(struct net_device *dev, int rid, const char *val)
308 struct hostap_interface *iface;
309 char buf[MAX_SSID_LEN + 2];
312 iface = netdev_priv(dev);
314 if (len > MAX_SSID_LEN)
316 memset(buf, 0, sizeof(buf));
317 buf[0] = len; /* little endian 16 bit word */
318 memcpy(buf + 2, val, len);
320 return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
324 u16 hostap_get_porttype(local_info_t *local)
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;
340 int hostap_set_encryption(local_info_t *local)
343 int i, keylen, len, idx;
344 char keybuf[WEP_KEY_LEN + 1];
345 enum { NONE, WEP, OTHER } encrypt_type;
347 idx = local->tx_keyidx;
348 if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
350 else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
353 encrypt_type = OTHER;
355 if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
357 printk(KERN_DEBUG "Could not read current WEP flags.\n");
363 if (encrypt_type != NONE || local->privacy_invoked)
364 val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
366 val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
368 if (local->open_wep || encrypt_type == NONE ||
369 ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
370 val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
372 val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
374 if ((encrypt_type != NONE || local->privacy_invoked) &&
375 (encrypt_type == OTHER || local->host_encrypt))
376 val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
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;
383 val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
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",
392 if (encrypt_type != WEP)
395 /* 104-bit support seems to require that all the keys are set to the
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 */
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);
410 if (local->func->set_rid(local->dev,
411 HFA384X_RID_CNFDEFAULTKEY0 + i,
413 printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
418 if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
419 printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
426 printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
431 int hostap_set_antsel(local_info_t *local)
436 if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
437 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
438 HFA386X_CR_TX_CONFIGURE,
440 val &= ~(BIT(2) | BIT(1));
441 switch (local->antsel_tx) {
442 case HOSTAP_ANTSEL_DIVERSITY:
445 case HOSTAP_ANTSEL_LOW:
447 case HOSTAP_ANTSEL_HIGH:
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",
460 if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
461 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
462 HFA386X_CR_RX_CONFIGURE,
464 val &= ~(BIT(1) | BIT(0));
465 switch (local->antsel_rx) {
466 case HOSTAP_ANTSEL_DIVERSITY:
468 case HOSTAP_ANTSEL_LOW:
471 case HOSTAP_ANTSEL_HIGH:
472 val |= BIT(0) | BIT(1);
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",
488 int hostap_set_roaming(local_info_t *local)
492 switch (local->host_roaming) {
494 val = HFA384X_ROAMING_HOST;
497 val = HFA384X_ROAMING_DISABLED;
501 val = HFA384X_ROAMING_FIRMWARE;
505 return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
509 int hostap_set_auth_algs(local_info_t *local)
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;
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);
531 void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
535 status = __le16_to_cpu(rx->status);
537 printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
538 "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
540 name, status, (status >> 8) & 0x07, status >> 13, status & 1,
541 rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
543 fc = __le16_to_cpu(rx->frame_control);
544 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
546 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
547 __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
548 __le16_to_cpu(rx->data_len),
549 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
550 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
552 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
554 MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3),
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));
563 void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
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);
572 fc = __le16_to_cpu(tx->frame_control);
573 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
575 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
576 __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
577 __le16_to_cpu(tx->data_len),
578 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
579 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
581 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
583 MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3),
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));
592 int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
594 memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
599 int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
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 */
614 int hostap_80211_get_hdrlen(u16 fc)
618 switch (WLAN_FC_GET_TYPE(fc)) {
619 case IEEE80211_FTYPE_DATA:
620 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
621 hdrlen = 30; /* Addr4 */
623 case IEEE80211_FTYPE_CTL:
624 switch (WLAN_FC_GET_STYPE(fc)) {
625 case IEEE80211_STYPE_CTS:
626 case IEEE80211_STYPE_ACK:
640 struct net_device_stats *hostap_get_stats(struct net_device *dev)
642 struct hostap_interface *iface;
643 iface = netdev_priv(dev);
644 return &iface->stats;
648 static int prism2_close(struct net_device *dev)
650 struct hostap_interface *iface;
653 PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
655 iface = netdev_priv(dev);
656 local = iface->local;
658 if (dev == local->ddev) {
659 prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
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 */
668 if (dev == local->dev) {
669 local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
672 if (netif_running(dev)) {
673 netif_stop_queue(dev);
674 netif_device_detach(dev);
677 flush_scheduled_work();
679 module_put(local->hw_module);
681 local->num_dev_open--;
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);
695 static int prism2_open(struct net_device *dev)
697 struct hostap_interface *iface;
700 PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
702 iface = netdev_priv(dev);
703 local = iface->local;
706 printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
711 if ((local->func->card_present && !local->func->card_present(local)) ||
712 local->hw_downloading)
715 if (!try_module_get(local->hw_module))
717 local->num_dev_open++;
719 if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
720 printk(KERN_WARNING "%s: could not enable MAC port\n",
725 if (!local->dev_enabled)
726 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
727 local->dev_enabled = 1;
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);
736 netif_device_attach(dev);
737 netif_start_queue(dev);
743 static int prism2_set_mac_address(struct net_device *dev, void *p)
745 struct hostap_interface *iface;
747 struct list_head *ptr;
748 struct sockaddr *addr = p;
750 iface = netdev_priv(dev);
751 local = iface->local;
753 if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
754 ETH_ALEN) < 0 || local->func->reset_port(dev))
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);
762 memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
763 read_unlock_bh(&local->iface_lock);
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)
773 struct net_device *dev = (struct net_device *) data;
774 struct hostap_interface *iface;
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");
787 static void hostap_set_multicast_list(struct net_device *dev)
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;
797 iface = netdev_priv(dev);
798 local = iface->local;
799 if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
800 local->is_promisc = 1;
802 local->is_promisc = 0;
805 schedule_work(&local->set_multicast_list_queue);
810 static int prism2_change_mtu(struct net_device *dev, int new_mtu)
812 if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
820 static void prism2_tx_timeout(struct net_device *dev)
822 struct hostap_interface *iface;
824 struct hfa384x_regs regs;
826 iface = netdev_priv(dev);
827 local = iface->local;
829 printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
830 netif_stop_queue(local->dev);
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,
838 local->func->schedule_reset(local);
842 void hostap_setup_dev(struct net_device *dev, local_info_t *local,
845 struct hostap_interface *iface;
847 iface = netdev_priv(dev);
850 /* kernel callbacks */
851 dev->get_stats = hostap_get_stats;
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;
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;
870 dev->mtu = local->mtu;
872 /* use main radio device queue */
873 dev->tx_queue_len = 0;
876 SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
878 netif_stop_queue(dev);
882 static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
884 struct net_device *dev = local->dev;
889 printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
891 local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
892 rtnl_locked, local->ddev->name,
894 if (local->apdev == NULL)
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;
905 static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
907 struct net_device *dev = local->dev;
909 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
911 hostap_remove_interface(local->apdev, rtnl_locked, 1);
918 static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
920 struct net_device *dev = local->dev;
925 printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
927 local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
928 rtnl_locked, local->ddev->name,
930 if (local->stadev == NULL)
937 static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
939 struct net_device *dev = local->dev;
941 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
943 hostap_remove_interface(local->stadev, rtnl_locked, 1);
944 local->stadev = NULL;
950 int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
954 if (val < 0 || val > 1)
957 if (local->hostapd == val)
961 ret = hostap_enable_hostapd(local, rtnl_locked);
966 ret = hostap_disable_hostapd(local, rtnl_locked);
975 int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
979 if (val < 0 || val > 1)
982 if (local->hostapd_sta == val)
986 ret = hostap_enable_hostapd_sta(local, rtnl_locked);
988 local->hostapd_sta = 1;
990 local->hostapd_sta = 0;
991 ret = hostap_disable_hostapd_sta(local, rtnl_locked);
993 local->hostapd_sta = 1;
1001 int prism2_update_comms_qual(struct net_device *dev)
1003 struct hostap_interface *iface;
1004 local_info_t *local;
1006 struct hfa384x_comms_quality sq;
1008 iface = netdev_priv(dev);
1009 local = iface->local;
1010 if (!local->sta_fw_ver)
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;
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;
1039 int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
1040 u8 *body, size_t bodylen)
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;
1047 skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
1051 mgmt = (struct hostap_ieee80211_mgmt *)
1052 skb_put(skb, IEEE80211_MGMT_HDR_LEN);
1053 memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
1054 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1055 memcpy(mgmt->da, dst, ETH_ALEN);
1056 memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
1057 memcpy(mgmt->bssid, dst, ETH_ALEN);
1059 memcpy(skb_put(skb, bodylen), body, bodylen);
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);
1067 skb->mac.raw = skb->nh.raw = skb->data;
1068 dev_queue_xmit(skb);
1074 int prism2_sta_deauth(local_info_t *local, u16 reason)
1076 union iwreq_data wrqu;
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)
1084 reason = cpu_to_le16(reason);
1085 ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH,
1087 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1088 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
1093 struct proc_dir_entry *hostap_proc;
1095 static int __init hostap_init(void)
1097 if (proc_net != NULL) {
1098 hostap_proc = proc_mkdir("hostap", proc_net);
1100 printk(KERN_WARNING "Failed to mkdir "
1101 "/proc/net/hostap\n");
1109 static void __exit hostap_exit(void)
1111 if (hostap_proc != NULL) {
1113 remove_proc_entry("hostap", proc_net);
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);
1140 module_init(hostap_init);
1141 module_exit(hostap_exit);