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 <net/iw_handler.h>
28 #include <net/ieee80211.h>
29 #include <net/ieee80211_crypt.h>
30 #include <asm/uaccess.h>
32 #include "hostap_wlan.h"
33 #include "hostap_80211.h"
34 #include "hostap_ap.h"
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Host AP common routines");
39 MODULE_LICENSE("GPL");
40 MODULE_VERSION(PRISM2_VERSION);
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 */))
51 static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
53 static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
54 int rtnl_locked, int do_not_remove);
57 static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
58 struct iw_quality qual[], int buf_size,
60 static int prism2_ap_translate_scan(struct net_device *dev, char *buffer);
61 static int prism2_hostapd(struct ap_data *ap,
62 struct prism2_hostapd_param *param);
63 static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
64 struct ieee80211_crypt_data ***crypt);
65 static void ap_control_kickall(struct ap_data *ap);
66 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
67 static int ap_control_add_mac(struct mac_restrictions *mac_restrictions,
69 static int ap_control_del_mac(struct mac_restrictions *mac_restrictions,
71 static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions);
72 static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev,
74 #endif /* !PRISM2_NO_KERNEL_IEEE80211_MGMT */
77 static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
78 2447, 2452, 2457, 2462, 2467, 2472, 2484 };
79 #define FREQ_COUNT (sizeof(freq_list) / sizeof(freq_list[0]))
82 /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
83 /* Ethernet-II snap header (RFC1042 for most EtherTypes) */
84 static unsigned char rfc1042_header[] =
85 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
86 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
87 static unsigned char bridge_tunnel_header[] =
88 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
89 /* No encapsulation header if EtherType < 0x600 (=length) */
92 /* FIX: these could be compiled separately and linked together to hostap.o */
93 #include "hostap_ap.c"
94 #include "hostap_info.c"
95 #include "hostap_ioctl.c"
96 #include "hostap_proc.c"
97 #include "hostap_80211_rx.c"
98 #include "hostap_80211_tx.c"
101 struct net_device * hostap_add_interface(struct local_info *local,
102 int type, int rtnl_locked,
106 struct net_device *dev, *mdev;
107 struct hostap_interface *iface;
110 dev = alloc_etherdev(sizeof(struct hostap_interface));
114 iface = netdev_priv(dev);
116 iface->local = local;
118 list_add(&iface->list, &local->hostap_interfaces);
121 memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
122 dev->base_addr = mdev->base_addr;
123 dev->irq = mdev->irq;
124 dev->mem_start = mdev->mem_start;
125 dev->mem_end = mdev->mem_end;
127 hostap_setup_dev(dev, local, 0);
128 dev->destructor = free_netdev;
130 sprintf(dev->name, "%s%s", prefix, name);
135 if (strchr(dev->name, '%'))
136 ret = dev_alloc_name(dev, dev->name);
138 SET_NETDEV_DEV(dev, mdev->class_dev.dev);
140 ret = register_netdevice(dev);
146 printk(KERN_WARNING "%s: failed to add new netdevice!\n",
152 printk(KERN_DEBUG "%s: registered netdevice %s\n",
153 mdev->name, dev->name);
159 void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
160 int remove_from_list)
162 struct hostap_interface *iface;
167 iface = netdev_priv(dev);
169 if (remove_from_list) {
170 list_del(&iface->list);
173 if (dev == iface->local->ddev)
174 iface->local->ddev = NULL;
175 else if (dev == iface->local->apdev)
176 iface->local->apdev = NULL;
177 else if (dev == iface->local->stadev)
178 iface->local->stadev = NULL;
181 unregister_netdevice(dev);
183 unregister_netdev(dev);
185 /* dev->destructor = free_netdev() will free the device data, including
186 * private data, when removing the device */
190 static inline int prism2_wds_special_addr(u8 *addr)
192 if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
199 static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
202 struct net_device *dev;
203 struct list_head *ptr;
204 struct hostap_interface *iface, *empty, *match;
206 empty = match = NULL;
207 read_lock_bh(&local->iface_lock);
208 list_for_each(ptr, &local->hostap_interfaces) {
209 iface = list_entry(ptr, struct hostap_interface, list);
210 if (iface->type != HOSTAP_INTERFACE_WDS)
213 if (prism2_wds_special_addr(iface->u.wds.remote_addr))
215 else if (memcmp(iface->u.wds.remote_addr, remote_addr,
221 if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
222 /* take pre-allocated entry into use */
223 memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
224 read_unlock_bh(&local->iface_lock);
225 printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
226 local->dev->name, empty->dev->name);
229 read_unlock_bh(&local->iface_lock);
231 if (!prism2_wds_special_addr(remote_addr)) {
234 hostap_add_sta(local->ap, remote_addr);
237 if (local->wds_connections >= local->wds_max_connections)
240 /* verify that there is room for wds# postfix in the interface name */
241 if (strlen(local->dev->name) > IFNAMSIZ - 5) {
242 printk(KERN_DEBUG "'%s' too long base device name\n",
247 dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
248 local->ddev->name, "wds%d");
252 iface = netdev_priv(dev);
253 memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
255 local->wds_connections++;
261 static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
262 int rtnl_locked, int do_not_remove)
265 struct list_head *ptr;
266 struct hostap_interface *iface, *selected = NULL;
268 write_lock_irqsave(&local->iface_lock, flags);
269 list_for_each(ptr, &local->hostap_interfaces) {
270 iface = list_entry(ptr, struct hostap_interface, list);
271 if (iface->type != HOSTAP_INTERFACE_WDS)
274 if (memcmp(iface->u.wds.remote_addr, remote_addr,
280 if (selected && !do_not_remove)
281 list_del(&selected->list);
282 write_unlock_irqrestore(&local->iface_lock, flags);
286 memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
288 hostap_remove_interface(selected->dev, rtnl_locked, 0);
289 local->wds_connections--;
293 return selected ? 0 : -ENODEV;
297 u16 hostap_tx_callback_register(local_info_t *local,
298 void (*func)(struct sk_buff *, int ok, void *),
302 struct hostap_tx_callback_info *entry;
304 entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry),
312 spin_lock_irqsave(&local->lock, flags);
313 entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
314 entry->next = local->tx_callback;
315 local->tx_callback = entry;
316 spin_unlock_irqrestore(&local->lock, flags);
322 int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
325 struct hostap_tx_callback_info *cb, *prev = NULL;
327 spin_lock_irqsave(&local->lock, flags);
328 cb = local->tx_callback;
329 while (cb != NULL && cb->idx != idx) {
335 local->tx_callback = cb->next;
337 prev->next = cb->next;
340 spin_unlock_irqrestore(&local->lock, flags);
346 /* val is in host byte order */
347 int hostap_set_word(struct net_device *dev, int rid, u16 val)
349 struct hostap_interface *iface;
350 u16 tmp = cpu_to_le16(val);
351 iface = netdev_priv(dev);
352 return iface->local->func->set_rid(dev, rid, &tmp, 2);
356 int hostap_set_string(struct net_device *dev, int rid, const char *val)
358 struct hostap_interface *iface;
359 char buf[MAX_SSID_LEN + 2];
362 iface = netdev_priv(dev);
364 if (len > MAX_SSID_LEN)
366 memset(buf, 0, sizeof(buf));
367 buf[0] = len; /* little endian 16 bit word */
368 memcpy(buf + 2, val, len);
370 return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
374 u16 hostap_get_porttype(local_info_t *local)
376 if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
377 return HFA384X_PORTTYPE_PSEUDO_IBSS;
378 if (local->iw_mode == IW_MODE_ADHOC)
379 return HFA384X_PORTTYPE_IBSS;
380 if (local->iw_mode == IW_MODE_INFRA)
381 return HFA384X_PORTTYPE_BSS;
382 if (local->iw_mode == IW_MODE_REPEAT)
383 return HFA384X_PORTTYPE_WDS;
384 if (local->iw_mode == IW_MODE_MONITOR)
385 return HFA384X_PORTTYPE_PSEUDO_IBSS;
386 return HFA384X_PORTTYPE_HOSTAP;
390 int hostap_set_encryption(local_info_t *local)
393 int i, keylen, len, idx;
394 char keybuf[WEP_KEY_LEN + 1];
395 enum { NONE, WEP, OTHER } encrypt_type;
397 idx = local->tx_keyidx;
398 if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
400 else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
403 encrypt_type = OTHER;
405 if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
407 printk(KERN_DEBUG "Could not read current WEP flags.\n");
413 if (encrypt_type != NONE || local->privacy_invoked)
414 val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
416 val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
418 if (local->open_wep || encrypt_type == NONE ||
419 ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
420 val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
422 val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
424 if ((encrypt_type != NONE || local->privacy_invoked) &&
425 (encrypt_type == OTHER || local->host_encrypt))
426 val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
428 val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
429 if ((encrypt_type != NONE || local->privacy_invoked) &&
430 (encrypt_type == OTHER || local->host_decrypt))
431 val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
433 val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
435 if (val != old_val &&
436 hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
437 printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
442 if (encrypt_type != WEP)
445 /* 104-bit support seems to require that all the keys are set to the
447 keylen = 6; /* first 5 octets */
448 len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
449 NULL, local->crypt[idx]->priv);
450 if (idx >= 0 && idx < WEP_KEYS && len > 5)
451 keylen = WEP_KEY_LEN + 1; /* first 13 octets */
453 for (i = 0; i < WEP_KEYS; i++) {
454 memset(keybuf, 0, sizeof(keybuf));
455 if (local->crypt[i]) {
456 (void) local->crypt[i]->ops->get_key(
457 keybuf, sizeof(keybuf),
458 NULL, local->crypt[i]->priv);
460 if (local->func->set_rid(local->dev,
461 HFA384X_RID_CNFDEFAULTKEY0 + i,
463 printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
468 if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
469 printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
476 printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
481 int hostap_set_antsel(local_info_t *local)
486 if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
487 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
488 HFA386X_CR_TX_CONFIGURE,
490 val &= ~(BIT(2) | BIT(1));
491 switch (local->antsel_tx) {
492 case HOSTAP_ANTSEL_DIVERSITY:
495 case HOSTAP_ANTSEL_LOW:
497 case HOSTAP_ANTSEL_HIGH:
502 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
503 HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
504 printk(KERN_INFO "%s: setting TX AntSel failed\n",
510 if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
511 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
512 HFA386X_CR_RX_CONFIGURE,
514 val &= ~(BIT(1) | BIT(0));
515 switch (local->antsel_rx) {
516 case HOSTAP_ANTSEL_DIVERSITY:
518 case HOSTAP_ANTSEL_LOW:
521 case HOSTAP_ANTSEL_HIGH:
522 val |= BIT(0) | BIT(1);
526 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
527 HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
528 printk(KERN_INFO "%s: setting RX AntSel failed\n",
538 int hostap_set_roaming(local_info_t *local)
542 switch (local->host_roaming) {
544 val = HFA384X_ROAMING_HOST;
547 val = HFA384X_ROAMING_DISABLED;
551 val = HFA384X_ROAMING_FIRMWARE;
555 return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
559 int hostap_set_auth_algs(local_info_t *local)
561 int val = local->auth_algs;
562 /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication
563 * set to include both Open and Shared Key flags. It tries to use
564 * Shared Key authentication in that case even if WEP keys are not
565 * configured.. STA f/w v0.7.6 is able to handle such configuration,
566 * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */
567 if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) &&
568 val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY)
569 val = PRISM2_AUTH_OPEN;
571 if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) {
572 printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x "
573 "failed\n", local->dev->name, local->auth_algs);
581 void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
585 status = __le16_to_cpu(rx->status);
587 printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
588 "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
590 name, status, (status >> 8) & 0x07, status >> 13, status & 1,
591 rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
593 fc = __le16_to_cpu(rx->frame_control);
594 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
596 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
597 __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
598 __le16_to_cpu(rx->data_len),
599 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
600 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
602 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
604 MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3),
607 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
608 MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr),
609 __be16_to_cpu(rx->len));
613 void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
617 printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d "
618 "tx_control=0x%04x; jiffies=%ld\n",
619 name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate,
620 __le16_to_cpu(tx->tx_control), jiffies);
622 fc = __le16_to_cpu(tx->frame_control);
623 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
625 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
626 __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
627 __le16_to_cpu(tx->data_len),
628 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
629 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
631 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
633 MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3),
636 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
637 MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr),
638 __be16_to_cpu(tx->len));
642 int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
644 memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
649 int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
651 if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) {
652 memcpy(haddr, skb->mac.raw +
653 sizeof(struct linux_wlan_ng_prism_hdr) + 10,
654 ETH_ALEN); /* addr2 */
655 } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */
656 memcpy(haddr, skb->mac.raw +
657 sizeof(struct linux_wlan_ng_cap_hdr) + 10,
658 ETH_ALEN); /* addr2 */
664 int hostap_80211_get_hdrlen(u16 fc)
668 switch (WLAN_FC_GET_TYPE(fc)) {
669 case IEEE80211_FTYPE_DATA:
670 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
671 hdrlen = 30; /* Addr4 */
673 case IEEE80211_FTYPE_CTL:
674 switch (WLAN_FC_GET_STYPE(fc)) {
675 case IEEE80211_STYPE_CTS:
676 case IEEE80211_STYPE_ACK:
690 struct net_device_stats *hostap_get_stats(struct net_device *dev)
692 struct hostap_interface *iface;
693 iface = netdev_priv(dev);
694 return &iface->stats;
698 static int prism2_close(struct net_device *dev)
700 struct hostap_interface *iface;
703 PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
705 iface = netdev_priv(dev);
706 local = iface->local;
708 if (dev == local->ddev) {
709 prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
711 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
712 if (!local->hostapd && dev == local->dev &&
713 (!local->func->card_present || local->func->card_present(local)) &&
714 local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER)
715 hostap_deauth_all_stas(dev, local->ap, 1);
716 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
718 if (dev == local->dev) {
719 local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
722 if (netif_running(dev)) {
723 netif_stop_queue(dev);
724 netif_device_detach(dev);
727 flush_scheduled_work();
729 module_put(local->hw_module);
731 local->num_dev_open--;
733 if (dev != local->dev && local->dev->flags & IFF_UP &&
734 local->master_dev_auto_open && local->num_dev_open == 1) {
735 /* Close master radio interface automatically if it was also
736 * opened automatically and we are now closing the last
737 * remaining non-master device. */
738 dev_close(local->dev);
745 static int prism2_open(struct net_device *dev)
747 struct hostap_interface *iface;
750 PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
752 iface = netdev_priv(dev);
753 local = iface->local;
756 printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
761 if ((local->func->card_present && !local->func->card_present(local)) ||
762 local->hw_downloading)
765 if (!try_module_get(local->hw_module))
767 local->num_dev_open++;
769 if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
770 printk(KERN_WARNING "%s: could not enable MAC port\n",
775 if (!local->dev_enabled)
776 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
777 local->dev_enabled = 1;
779 if (dev != local->dev && !(local->dev->flags & IFF_UP)) {
780 /* Master radio interface is needed for all operation, so open
781 * it automatically when any virtual net_device is opened. */
782 local->master_dev_auto_open = 1;
783 dev_open(local->dev);
786 netif_device_attach(dev);
787 netif_start_queue(dev);
793 static int prism2_set_mac_address(struct net_device *dev, void *p)
795 struct hostap_interface *iface;
797 struct list_head *ptr;
798 struct sockaddr *addr = p;
800 iface = netdev_priv(dev);
801 local = iface->local;
803 if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
804 ETH_ALEN) < 0 || local->func->reset_port(dev))
807 read_lock_bh(&local->iface_lock);
808 list_for_each(ptr, &local->hostap_interfaces) {
809 iface = list_entry(ptr, struct hostap_interface, list);
810 memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN);
812 memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
813 read_unlock_bh(&local->iface_lock);
819 /* TODO: to be further implemented as soon as Prism2 fully supports
820 * GroupAddresses and correct documentation is available */
821 void hostap_set_multicast_list_queue(void *data)
823 struct net_device *dev = (struct net_device *) data;
824 struct hostap_interface *iface;
827 iface = netdev_priv(dev);
828 local = iface->local;
829 if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
830 local->is_promisc)) {
831 printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",
832 dev->name, local->is_promisc ? "en" : "dis");
837 static void hostap_set_multicast_list(struct net_device *dev)
840 /* FIX: promiscuous mode seems to be causing a lot of problems with
841 * some station firmware versions (FCSErr frames, invalid MACPort, etc.
842 * corrupted incoming frames). This code is now commented out while the
843 * problems are investigated. */
844 struct hostap_interface *iface;
847 iface = netdev_priv(dev);
848 local = iface->local;
849 if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
850 local->is_promisc = 1;
852 local->is_promisc = 0;
855 schedule_work(&local->set_multicast_list_queue);
860 static int prism2_change_mtu(struct net_device *dev, int new_mtu)
862 if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
870 static void prism2_tx_timeout(struct net_device *dev)
872 struct hostap_interface *iface;
874 struct hfa384x_regs regs;
876 iface = netdev_priv(dev);
877 local = iface->local;
879 printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
880 netif_stop_queue(local->dev);
882 local->func->read_regs(dev, ®s);
883 printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x "
884 "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n",
885 dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1,
888 local->func->schedule_reset(local);
892 void hostap_setup_dev(struct net_device *dev, local_info_t *local,
895 struct hostap_interface *iface;
897 iface = netdev_priv(dev);
900 /* kernel callbacks */
901 dev->get_stats = hostap_get_stats;
903 /* Currently, we point to the proper spy_data only on
904 * the main_dev. This could be fixed. Jean II */
905 iface->wireless_data.spy_data = &iface->spy_data;
906 dev->wireless_data = &iface->wireless_data;
908 dev->wireless_handlers =
909 (struct iw_handler_def *) &hostap_iw_handler_def;
910 dev->do_ioctl = hostap_ioctl;
911 dev->open = prism2_open;
912 dev->stop = prism2_close;
913 dev->hard_start_xmit = hostap_data_start_xmit;
914 dev->set_mac_address = prism2_set_mac_address;
915 dev->set_multicast_list = hostap_set_multicast_list;
916 dev->change_mtu = prism2_change_mtu;
917 dev->tx_timeout = prism2_tx_timeout;
918 dev->watchdog_timeo = TX_TIMEOUT;
920 dev->mtu = local->mtu;
922 /* use main radio device queue */
923 dev->tx_queue_len = 0;
926 SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
928 netif_stop_queue(dev);
932 static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
934 struct net_device *dev = local->dev;
939 printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
941 local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
942 rtnl_locked, local->ddev->name,
944 if (local->apdev == NULL)
947 local->apdev->hard_start_xmit = hostap_mgmt_start_xmit;
948 local->apdev->type = ARPHRD_IEEE80211;
949 local->apdev->hard_header_parse = hostap_80211_header_parse;
955 static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
957 struct net_device *dev = local->dev;
959 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
961 hostap_remove_interface(local->apdev, rtnl_locked, 1);
968 static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
970 struct net_device *dev = local->dev;
975 printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
977 local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
978 rtnl_locked, local->ddev->name,
980 if (local->stadev == NULL)
987 static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
989 struct net_device *dev = local->dev;
991 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
993 hostap_remove_interface(local->stadev, rtnl_locked, 1);
994 local->stadev = NULL;
1000 int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
1004 if (val < 0 || val > 1)
1007 if (local->hostapd == val)
1011 ret = hostap_enable_hostapd(local, rtnl_locked);
1016 ret = hostap_disable_hostapd(local, rtnl_locked);
1025 int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
1029 if (val < 0 || val > 1)
1032 if (local->hostapd_sta == val)
1036 ret = hostap_enable_hostapd_sta(local, rtnl_locked);
1038 local->hostapd_sta = 1;
1040 local->hostapd_sta = 0;
1041 ret = hostap_disable_hostapd_sta(local, rtnl_locked);
1043 local->hostapd_sta = 1;
1051 int prism2_update_comms_qual(struct net_device *dev)
1053 struct hostap_interface *iface;
1054 local_info_t *local;
1056 struct hfa384x_comms_quality sq;
1058 iface = netdev_priv(dev);
1059 local = iface->local;
1060 if (!local->sta_fw_ver)
1062 else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
1063 if (local->func->get_rid(local->dev,
1064 HFA384X_RID_DBMCOMMSQUALITY,
1065 &sq, sizeof(sq), 1) >= 0) {
1066 local->comms_qual = (s16) le16_to_cpu(sq.comm_qual);
1067 local->avg_signal = (s16) le16_to_cpu(sq.signal_level);
1068 local->avg_noise = (s16) le16_to_cpu(sq.noise_level);
1069 local->last_comms_qual_update = jiffies;
1073 if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY,
1074 &sq, sizeof(sq), 1) >= 0) {
1075 local->comms_qual = le16_to_cpu(sq.comm_qual);
1076 local->avg_signal = HFA384X_LEVEL_TO_dBm(
1077 le16_to_cpu(sq.signal_level));
1078 local->avg_noise = HFA384X_LEVEL_TO_dBm(
1079 le16_to_cpu(sq.noise_level));
1080 local->last_comms_qual_update = jiffies;
1089 int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
1090 u8 *body, size_t bodylen)
1092 struct sk_buff *skb;
1093 struct hostap_ieee80211_mgmt *mgmt;
1094 struct hostap_skb_tx_data *meta;
1095 struct net_device *dev = local->dev;
1097 skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
1101 mgmt = (struct hostap_ieee80211_mgmt *)
1102 skb_put(skb, IEEE80211_MGMT_HDR_LEN);
1103 memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
1104 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1105 memcpy(mgmt->da, dst, ETH_ALEN);
1106 memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
1107 memcpy(mgmt->bssid, dst, ETH_ALEN);
1109 memcpy(skb_put(skb, bodylen), body, bodylen);
1111 meta = (struct hostap_skb_tx_data *) skb->cb;
1112 memset(meta, 0, sizeof(*meta));
1113 meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
1114 meta->iface = netdev_priv(dev);
1117 skb->mac.raw = skb->nh.raw = skb->data;
1118 dev_queue_xmit(skb);
1124 int prism2_sta_deauth(local_info_t *local, u16 reason)
1126 union iwreq_data wrqu;
1129 if (local->iw_mode != IW_MODE_INFRA ||
1130 memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
1131 memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
1134 reason = cpu_to_le16(reason);
1135 ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH,
1137 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1138 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
1143 struct proc_dir_entry *hostap_proc;
1145 static int __init hostap_init(void)
1147 if (proc_net != NULL) {
1148 hostap_proc = proc_mkdir("hostap", proc_net);
1150 printk(KERN_WARNING "Failed to mkdir "
1151 "/proc/net/hostap\n");
1159 static void __exit hostap_exit(void)
1161 if (hostap_proc != NULL) {
1163 remove_proc_entry("hostap", proc_net);
1168 EXPORT_SYMBOL(hostap_set_word);
1169 EXPORT_SYMBOL(hostap_set_string);
1170 EXPORT_SYMBOL(hostap_get_porttype);
1171 EXPORT_SYMBOL(hostap_set_encryption);
1172 EXPORT_SYMBOL(hostap_set_antsel);
1173 EXPORT_SYMBOL(hostap_set_roaming);
1174 EXPORT_SYMBOL(hostap_set_auth_algs);
1175 EXPORT_SYMBOL(hostap_dump_rx_header);
1176 EXPORT_SYMBOL(hostap_dump_tx_header);
1177 EXPORT_SYMBOL(hostap_80211_header_parse);
1178 EXPORT_SYMBOL(hostap_80211_prism_header_parse);
1179 EXPORT_SYMBOL(hostap_80211_get_hdrlen);
1180 EXPORT_SYMBOL(hostap_get_stats);
1181 EXPORT_SYMBOL(hostap_setup_dev);
1182 EXPORT_SYMBOL(hostap_proc);
1183 EXPORT_SYMBOL(hostap_set_multicast_list_queue);
1184 EXPORT_SYMBOL(hostap_set_hostapd);
1185 EXPORT_SYMBOL(hostap_set_hostapd_sta);
1186 EXPORT_SYMBOL(hostap_add_interface);
1187 EXPORT_SYMBOL(hostap_remove_interface);
1188 EXPORT_SYMBOL(prism2_update_comms_qual);
1190 module_init(hostap_init);
1191 module_exit(hostap_exit);