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) 2002-2004, 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/version.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/slab.h>
20 #include <linux/proc_fs.h>
21 #include <linux/if_arp.h>
22 #include <linux/delay.h>
23 #include <linux/random.h>
24 #include <linux/workqueue.h>
25 #include <linux/kmod.h>
26 #include <linux/rtnetlink.h>
27 #include <linux/wireless.h>
28 #include <net/iw_handler.h>
29 #include <asm/uaccess.h>
31 #include "hostap_wlan.h"
32 #include "hostap_80211.h"
33 #include "hostap_ap.h"
35 #include "hostap_crypt.h"
37 MODULE_AUTHOR("Jouni Malinen");
38 MODULE_DESCRIPTION("Host AP common routines");
39 MODULE_LICENSE("GPL");
40 MODULE_VERSION(PRISM2_VERSION);
42 /* Old hostap_crypt module is now part of hostap module. */
43 #include "hostap_crypt.c"
45 #define TX_TIMEOUT (2 * HZ)
47 #define PRISM2_MAX_FRAME_SIZE 2304
48 #define PRISM2_MIN_MTU 256
50 #define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
54 static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
56 static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
57 int rtnl_locked, int do_not_remove);
60 static int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
61 struct iw_quality qual[], int buf_size,
63 static int prism2_ap_translate_scan(struct net_device *dev, char *buffer);
64 static int prism2_hostapd(struct ap_data *ap,
65 struct prism2_hostapd_param *param);
66 static void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
67 struct prism2_crypt_data ***crypt);
68 static void ap_control_kickall(struct ap_data *ap);
69 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
70 static int ap_control_add_mac(struct mac_restrictions *mac_restrictions,
72 static int ap_control_del_mac(struct mac_restrictions *mac_restrictions,
74 static void ap_control_flush_macs(struct mac_restrictions *mac_restrictions);
75 static int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev,
77 #endif /* !PRISM2_NO_KERNEL_IEEE80211_MGMT */
80 static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
81 2447, 2452, 2457, 2462, 2467, 2472, 2484 };
82 #define FREQ_COUNT (sizeof(freq_list) / sizeof(freq_list[0]))
85 /* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
86 /* Ethernet-II snap header (RFC1042 for most EtherTypes) */
87 static unsigned char rfc1042_header[] =
88 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
89 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
90 static unsigned char bridge_tunnel_header[] =
91 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
92 /* No encapsulation header if EtherType < 0x600 (=length) */
95 /* FIX: these could be compiled separately and linked together to hostap.o */
96 #include "hostap_ap.c"
97 #include "hostap_info.c"
98 #include "hostap_ioctl.c"
99 #include "hostap_proc.c"
100 #include "hostap_80211_rx.c"
101 #include "hostap_80211_tx.c"
104 struct net_device * hostap_add_interface(struct local_info *local,
105 int type, int rtnl_locked,
109 struct net_device *dev, *mdev;
110 struct hostap_interface *iface;
113 dev = alloc_etherdev(sizeof(struct hostap_interface));
117 iface = netdev_priv(dev);
119 iface->local = local;
121 list_add(&iface->list, &local->hostap_interfaces);
124 memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
125 dev->base_addr = mdev->base_addr;
126 dev->irq = mdev->irq;
127 dev->mem_start = mdev->mem_start;
128 dev->mem_end = mdev->mem_end;
130 hostap_setup_dev(dev, local, 0);
131 dev->destructor = free_netdev;
133 sprintf(dev->name, "%s%s", prefix, name);
138 if (strchr(dev->name, '%'))
139 ret = dev_alloc_name(dev, dev->name);
141 SET_NETDEV_DEV(dev, mdev->class_dev.dev);
143 ret = register_netdevice(dev);
149 printk(KERN_WARNING "%s: failed to add new netdevice!\n",
155 printk(KERN_DEBUG "%s: registered netdevice %s\n",
156 mdev->name, dev->name);
162 void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
163 int remove_from_list)
165 struct hostap_interface *iface;
170 iface = netdev_priv(dev);
172 if (remove_from_list) {
173 list_del(&iface->list);
176 if (dev == iface->local->ddev)
177 iface->local->ddev = NULL;
178 else if (dev == iface->local->apdev)
179 iface->local->apdev = NULL;
180 else if (dev == iface->local->stadev)
181 iface->local->stadev = NULL;
184 unregister_netdevice(dev);
186 unregister_netdev(dev);
188 /* dev->destructor = free_netdev() will free the device data, including
189 * private data, when removing the device */
193 static inline int prism2_wds_special_addr(u8 *addr)
195 if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
202 static int prism2_wds_add(local_info_t *local, u8 *remote_addr,
205 struct net_device *dev;
206 struct list_head *ptr;
207 struct hostap_interface *iface, *empty, *match;
209 empty = match = NULL;
210 read_lock_bh(&local->iface_lock);
211 list_for_each(ptr, &local->hostap_interfaces) {
212 iface = list_entry(ptr, struct hostap_interface, list);
213 if (iface->type != HOSTAP_INTERFACE_WDS)
216 if (prism2_wds_special_addr(iface->u.wds.remote_addr))
218 else if (memcmp(iface->u.wds.remote_addr, remote_addr,
224 if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
225 /* take pre-allocated entry into use */
226 memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
227 read_unlock_bh(&local->iface_lock);
228 printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
229 local->dev->name, empty->dev->name);
232 read_unlock_bh(&local->iface_lock);
234 if (!prism2_wds_special_addr(remote_addr)) {
237 hostap_add_sta(local->ap, remote_addr);
240 if (local->wds_connections >= local->wds_max_connections)
243 /* verify that there is room for wds# postfix in the interface name */
244 if (strlen(local->dev->name) > IFNAMSIZ - 5) {
245 printk(KERN_DEBUG "'%s' too long base device name\n",
250 dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
251 local->ddev->name, "wds%d");
255 iface = netdev_priv(dev);
256 memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
258 local->wds_connections++;
264 static int prism2_wds_del(local_info_t *local, u8 *remote_addr,
265 int rtnl_locked, int do_not_remove)
268 struct list_head *ptr;
269 struct hostap_interface *iface, *selected = NULL;
271 write_lock_irqsave(&local->iface_lock, flags);
272 list_for_each(ptr, &local->hostap_interfaces) {
273 iface = list_entry(ptr, struct hostap_interface, list);
274 if (iface->type != HOSTAP_INTERFACE_WDS)
277 if (memcmp(iface->u.wds.remote_addr, remote_addr,
283 if (selected && !do_not_remove)
284 list_del(&selected->list);
285 write_unlock_irqrestore(&local->iface_lock, flags);
289 memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
291 hostap_remove_interface(selected->dev, rtnl_locked, 0);
292 local->wds_connections--;
296 return selected ? 0 : -ENODEV;
300 u16 hostap_tx_callback_register(local_info_t *local,
301 void (*func)(struct sk_buff *, int ok, void *),
305 struct hostap_tx_callback_info *entry;
307 entry = (struct hostap_tx_callback_info *) kmalloc(sizeof(*entry),
315 spin_lock_irqsave(&local->lock, flags);
316 entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
317 entry->next = local->tx_callback;
318 local->tx_callback = entry;
319 spin_unlock_irqrestore(&local->lock, flags);
325 int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
328 struct hostap_tx_callback_info *cb, *prev = NULL;
330 spin_lock_irqsave(&local->lock, flags);
331 cb = local->tx_callback;
332 while (cb != NULL && cb->idx != idx) {
338 local->tx_callback = cb->next;
340 prev->next = cb->next;
343 spin_unlock_irqrestore(&local->lock, flags);
349 /* val is in host byte order */
350 int hostap_set_word(struct net_device *dev, int rid, u16 val)
352 struct hostap_interface *iface;
353 u16 tmp = cpu_to_le16(val);
354 iface = netdev_priv(dev);
355 return iface->local->func->set_rid(dev, rid, &tmp, 2);
359 int hostap_set_string(struct net_device *dev, int rid, const char *val)
361 struct hostap_interface *iface;
362 char buf[MAX_SSID_LEN + 2];
365 iface = netdev_priv(dev);
367 if (len > MAX_SSID_LEN)
369 memset(buf, 0, sizeof(buf));
370 buf[0] = len; /* little endian 16 bit word */
371 memcpy(buf + 2, val, len);
373 return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
377 u16 hostap_get_porttype(local_info_t *local)
379 if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
380 return HFA384X_PORTTYPE_PSEUDO_IBSS;
381 if (local->iw_mode == IW_MODE_ADHOC)
382 return HFA384X_PORTTYPE_IBSS;
383 if (local->iw_mode == IW_MODE_INFRA)
384 return HFA384X_PORTTYPE_BSS;
385 if (local->iw_mode == IW_MODE_REPEAT)
386 return HFA384X_PORTTYPE_WDS;
387 if (local->iw_mode == IW_MODE_MONITOR)
388 return HFA384X_PORTTYPE_PSEUDO_IBSS;
389 return HFA384X_PORTTYPE_HOSTAP;
393 int hostap_set_encryption(local_info_t *local)
396 int i, keylen, len, idx;
397 char keybuf[WEP_KEY_LEN + 1];
398 enum { NONE, WEP, OTHER } encrypt_type;
400 idx = local->tx_keyidx;
401 if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
403 else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
406 encrypt_type = OTHER;
408 if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
410 printk(KERN_DEBUG "Could not read current WEP flags.\n");
416 if (encrypt_type != NONE || local->privacy_invoked)
417 val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
419 val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
421 if (local->open_wep || encrypt_type == NONE ||
422 ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
423 val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
425 val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
427 if ((encrypt_type != NONE || local->privacy_invoked) &&
428 (encrypt_type == OTHER || local->host_encrypt))
429 val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
431 val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
432 if ((encrypt_type != NONE || local->privacy_invoked) &&
433 (encrypt_type == OTHER || local->host_decrypt))
434 val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
436 val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
438 if (val != old_val &&
439 hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
440 printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
445 if (encrypt_type != WEP)
448 /* 104-bit support seems to require that all the keys are set to the
450 keylen = 6; /* first 5 octets */
451 len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
452 NULL, local->crypt[idx]->priv);
453 if (idx >= 0 && idx < WEP_KEYS && len > 5)
454 keylen = WEP_KEY_LEN + 1; /* first 13 octets */
456 for (i = 0; i < WEP_KEYS; i++) {
457 memset(keybuf, 0, sizeof(keybuf));
458 if (local->crypt[i]) {
459 (void) local->crypt[i]->ops->get_key(
460 keybuf, sizeof(keybuf),
461 NULL, local->crypt[i]->priv);
463 if (local->func->set_rid(local->dev,
464 HFA384X_RID_CNFDEFAULTKEY0 + i,
466 printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
471 if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
472 printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
479 printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
484 int hostap_set_antsel(local_info_t *local)
489 if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
490 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
491 HFA386X_CR_TX_CONFIGURE,
493 val &= ~(BIT(2) | BIT(1));
494 switch (local->antsel_tx) {
495 case HOSTAP_ANTSEL_DIVERSITY:
498 case HOSTAP_ANTSEL_LOW:
500 case HOSTAP_ANTSEL_HIGH:
505 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
506 HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
507 printk(KERN_INFO "%s: setting TX AntSel failed\n",
513 if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
514 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
515 HFA386X_CR_RX_CONFIGURE,
517 val &= ~(BIT(1) | BIT(0));
518 switch (local->antsel_rx) {
519 case HOSTAP_ANTSEL_DIVERSITY:
521 case HOSTAP_ANTSEL_LOW:
524 case HOSTAP_ANTSEL_HIGH:
525 val |= BIT(0) | BIT(1);
529 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
530 HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
531 printk(KERN_INFO "%s: setting RX AntSel failed\n",
541 int hostap_set_roaming(local_info_t *local)
545 switch (local->host_roaming) {
547 val = HFA384X_ROAMING_HOST;
550 val = HFA384X_ROAMING_DISABLED;
554 val = HFA384X_ROAMING_FIRMWARE;
558 return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
562 int hostap_set_auth_algs(local_info_t *local)
564 int val = local->auth_algs;
565 /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication
566 * set to include both Open and Shared Key flags. It tries to use
567 * Shared Key authentication in that case even if WEP keys are not
568 * configured.. STA f/w v0.7.6 is able to handle such configuration,
569 * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */
570 if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) &&
571 val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY)
572 val = PRISM2_AUTH_OPEN;
574 if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) {
575 printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x "
576 "failed\n", local->dev->name, local->auth_algs);
584 void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
588 status = __le16_to_cpu(rx->status);
590 printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
591 "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
593 name, status, (status >> 8) & 0x07, status >> 13, status & 1,
594 rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
596 fc = __le16_to_cpu(rx->frame_control);
597 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
599 fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc),
600 __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
601 __le16_to_cpu(rx->data_len),
602 fc & WLAN_FC_TODS ? " [ToDS]" : "",
603 fc & WLAN_FC_FROMDS ? " [FromDS]" : "");
605 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
607 MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3),
610 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
611 MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr),
612 __be16_to_cpu(rx->len));
616 void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
620 printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d "
621 "tx_control=0x%04x; jiffies=%ld\n",
622 name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate,
623 __le16_to_cpu(tx->tx_control), jiffies);
625 fc = __le16_to_cpu(tx->frame_control);
626 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
628 fc, WLAN_FC_GET_TYPE(fc), WLAN_FC_GET_STYPE(fc),
629 __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
630 __le16_to_cpu(tx->data_len),
631 fc & WLAN_FC_TODS ? " [ToDS]" : "",
632 fc & WLAN_FC_FROMDS ? " [FromDS]" : "");
634 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
636 MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3),
639 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
640 MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr),
641 __be16_to_cpu(tx->len));
645 int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
647 memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
652 int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
654 if (*(u32 *)skb->mac.raw == LWNG_CAP_DID_BASE) {
655 memcpy(haddr, skb->mac.raw +
656 sizeof(struct linux_wlan_ng_prism_hdr) + 10,
657 ETH_ALEN); /* addr2 */
658 } else { /* (*(u32 *)skb->mac.raw == htonl(LWNG_CAPHDR_VERSION)) */
659 memcpy(haddr, skb->mac.raw +
660 sizeof(struct linux_wlan_ng_cap_hdr) + 10,
661 ETH_ALEN); /* addr2 */
667 int hostap_80211_get_hdrlen(u16 fc)
671 switch (WLAN_FC_GET_TYPE(fc)) {
672 case WLAN_FC_TYPE_DATA:
673 if ((fc & WLAN_FC_FROMDS) && (fc & WLAN_FC_TODS))
674 hdrlen = 30; /* Addr4 */
676 case WLAN_FC_TYPE_CTRL:
677 switch (WLAN_FC_GET_STYPE(fc)) {
678 case WLAN_FC_STYPE_CTS:
679 case WLAN_FC_STYPE_ACK:
693 struct net_device_stats *hostap_get_stats(struct net_device *dev)
695 struct hostap_interface *iface;
696 iface = netdev_priv(dev);
697 return &iface->stats;
701 static int prism2_close(struct net_device *dev)
703 struct hostap_interface *iface;
706 PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
708 iface = netdev_priv(dev);
709 local = iface->local;
711 if (dev == local->ddev) {
712 prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
714 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
715 if (!local->hostapd && dev == local->dev &&
716 (!local->func->card_present || local->func->card_present(local)) &&
717 local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER)
718 hostap_deauth_all_stas(dev, local->ap, 1);
719 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
721 if (local->func->dev_close && local->func->dev_close(local))
724 if (dev == local->dev) {
725 local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
728 if (netif_running(dev)) {
729 netif_stop_queue(dev);
730 netif_device_detach(dev);
733 flush_scheduled_work();
735 module_put(local->hw_module);
737 local->num_dev_open--;
739 if (dev != local->dev && local->dev->flags & IFF_UP &&
740 local->master_dev_auto_open && local->num_dev_open == 1) {
741 /* Close master radio interface automatically if it was also
742 * opened automatically and we are now closing the last
743 * remaining non-master device. */
744 dev_close(local->dev);
751 static int prism2_open(struct net_device *dev)
753 struct hostap_interface *iface;
756 PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
758 iface = netdev_priv(dev);
759 local = iface->local;
762 printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
767 if ((local->func->card_present && !local->func->card_present(local)) ||
768 local->hw_downloading)
771 if (local->func->dev_open && local->func->dev_open(local))
774 if (!try_module_get(local->hw_module))
776 local->num_dev_open++;
778 if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
779 printk(KERN_WARNING "%s: could not enable MAC port\n",
784 if (!local->dev_enabled)
785 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
786 local->dev_enabled = 1;
788 if (dev != local->dev && !(local->dev->flags & IFF_UP)) {
789 /* Master radio interface is needed for all operation, so open
790 * it automatically when any virtual net_device is opened. */
791 local->master_dev_auto_open = 1;
792 dev_open(local->dev);
795 netif_device_attach(dev);
796 netif_start_queue(dev);
802 static int prism2_set_mac_address(struct net_device *dev, void *p)
804 struct hostap_interface *iface;
806 struct list_head *ptr;
807 struct sockaddr *addr = p;
809 iface = netdev_priv(dev);
810 local = iface->local;
812 if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
813 ETH_ALEN) < 0 || local->func->reset_port(dev))
816 read_lock_bh(&local->iface_lock);
817 list_for_each(ptr, &local->hostap_interfaces) {
818 iface = list_entry(ptr, struct hostap_interface, list);
819 memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN);
821 memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
822 read_unlock_bh(&local->iface_lock);
828 /* TODO: to be further implemented as soon as Prism2 fully supports
829 * GroupAddresses and correct documentation is available */
830 void hostap_set_multicast_list_queue(void *data)
832 struct net_device *dev = (struct net_device *) data;
833 struct hostap_interface *iface;
836 iface = netdev_priv(dev);
837 local = iface->local;
838 if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
839 local->is_promisc)) {
840 printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",
841 dev->name, local->is_promisc ? "en" : "dis");
846 static void hostap_set_multicast_list(struct net_device *dev)
849 /* FIX: promiscuous mode seems to be causing a lot of problems with
850 * some station firmware versions (FCSErr frames, invalid MACPort, etc.
851 * corrupted incoming frames). This code is now commented out while the
852 * problems are investigated. */
853 struct hostap_interface *iface;
856 iface = netdev_priv(dev);
857 local = iface->local;
858 if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
859 local->is_promisc = 1;
861 local->is_promisc = 0;
864 schedule_work(&local->set_multicast_list_queue);
869 static int prism2_change_mtu(struct net_device *dev, int new_mtu)
871 if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
879 static void prism2_tx_timeout(struct net_device *dev)
881 struct hostap_interface *iface;
883 struct hfa384x_regs regs;
885 iface = netdev_priv(dev);
886 local = iface->local;
888 printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
889 netif_stop_queue(local->dev);
891 local->func->read_regs(dev, ®s);
892 printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x "
893 "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n",
894 dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1,
897 local->func->schedule_reset(local);
901 void hostap_setup_dev(struct net_device *dev, local_info_t *local,
904 struct hostap_interface *iface;
906 iface = netdev_priv(dev);
909 /* kernel callbacks */
910 dev->get_stats = hostap_get_stats;
912 /* Currently, we point to the proper spy_data only on
913 * the main_dev. This could be fixed. Jean II */
914 iface->wireless_data.spy_data = &iface->spy_data;
915 dev->wireless_data = &iface->wireless_data;
917 dev->wireless_handlers =
918 (struct iw_handler_def *) &hostap_iw_handler_def;
919 dev->do_ioctl = hostap_ioctl;
920 dev->open = prism2_open;
921 dev->stop = prism2_close;
922 dev->hard_start_xmit = hostap_data_start_xmit;
923 dev->set_mac_address = prism2_set_mac_address;
924 dev->set_multicast_list = hostap_set_multicast_list;
925 dev->change_mtu = prism2_change_mtu;
926 dev->tx_timeout = prism2_tx_timeout;
927 dev->watchdog_timeo = TX_TIMEOUT;
929 dev->mtu = local->mtu;
931 /* use main radio device queue */
932 dev->tx_queue_len = 0;
935 SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
937 netif_stop_queue(dev);
941 static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
943 struct net_device *dev = local->dev;
948 printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
950 local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
951 rtnl_locked, local->ddev->name,
953 if (local->apdev == NULL)
956 local->apdev->hard_start_xmit = hostap_mgmt_start_xmit;
957 local->apdev->type = ARPHRD_IEEE80211;
958 local->apdev->hard_header_parse = hostap_80211_header_parse;
964 static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
966 struct net_device *dev = local->dev;
968 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
970 hostap_remove_interface(local->apdev, rtnl_locked, 1);
977 static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
979 struct net_device *dev = local->dev;
984 printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
986 local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
987 rtnl_locked, local->ddev->name,
989 if (local->stadev == NULL)
996 static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
998 struct net_device *dev = local->dev;
1000 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
1002 hostap_remove_interface(local->stadev, rtnl_locked, 1);
1003 local->stadev = NULL;
1009 int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
1013 if (val < 0 || val > 1)
1016 if (local->hostapd == val)
1020 ret = hostap_enable_hostapd(local, rtnl_locked);
1025 ret = hostap_disable_hostapd(local, rtnl_locked);
1034 int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
1038 if (val < 0 || val > 1)
1041 if (local->hostapd_sta == val)
1045 ret = hostap_enable_hostapd_sta(local, rtnl_locked);
1047 local->hostapd_sta = 1;
1049 local->hostapd_sta = 0;
1050 ret = hostap_disable_hostapd_sta(local, rtnl_locked);
1052 local->hostapd_sta = 1;
1060 int prism2_update_comms_qual(struct net_device *dev)
1062 struct hostap_interface *iface;
1063 local_info_t *local;
1065 struct hfa384x_comms_quality sq;
1067 iface = netdev_priv(dev);
1068 local = iface->local;
1069 if (!local->sta_fw_ver)
1071 else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
1072 if (local->func->get_rid(local->dev,
1073 HFA384X_RID_DBMCOMMSQUALITY,
1074 &sq, sizeof(sq), 1) >= 0) {
1075 local->comms_qual = (s16) le16_to_cpu(sq.comm_qual);
1076 local->avg_signal = (s16) le16_to_cpu(sq.signal_level);
1077 local->avg_noise = (s16) le16_to_cpu(sq.noise_level);
1078 local->last_comms_qual_update = jiffies;
1082 if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY,
1083 &sq, sizeof(sq), 1) >= 0) {
1084 local->comms_qual = le16_to_cpu(sq.comm_qual);
1085 local->avg_signal = HFA384X_LEVEL_TO_dBm(
1086 le16_to_cpu(sq.signal_level));
1087 local->avg_noise = HFA384X_LEVEL_TO_dBm(
1088 le16_to_cpu(sq.noise_level));
1089 local->last_comms_qual_update = jiffies;
1098 int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u8 stype,
1099 u8 *body, size_t bodylen)
1101 struct sk_buff *skb;
1102 struct hostap_ieee80211_mgmt *mgmt;
1103 struct hostap_skb_tx_data *meta;
1104 struct net_device *dev = local->dev;
1106 skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
1110 mgmt = (struct hostap_ieee80211_mgmt *)
1111 skb_put(skb, IEEE80211_MGMT_HDR_LEN);
1112 memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
1113 mgmt->frame_control =
1114 cpu_to_le16((WLAN_FC_TYPE_MGMT << 2) | (stype << 4));
1115 memcpy(mgmt->da, dst, ETH_ALEN);
1116 memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
1117 memcpy(mgmt->bssid, dst, ETH_ALEN);
1119 memcpy(skb_put(skb, bodylen), body, bodylen);
1121 meta = (struct hostap_skb_tx_data *) skb->cb;
1122 memset(meta, 0, sizeof(*meta));
1123 meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
1124 meta->iface = netdev_priv(dev);
1127 skb->mac.raw = skb->nh.raw = skb->data;
1128 dev_queue_xmit(skb);
1134 int prism2_sta_deauth(local_info_t *local, u16 reason)
1136 union iwreq_data wrqu;
1139 if (local->iw_mode != IW_MODE_INFRA ||
1140 memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
1141 memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
1144 reason = cpu_to_le16(reason);
1145 ret = prism2_sta_send_mgmt(local, local->bssid, WLAN_FC_STYPE_DEAUTH,
1147 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1148 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
1153 struct proc_dir_entry *hostap_proc;
1155 static int __init hostap_init(void)
1157 hostap_crypto_init();
1159 if (proc_net != NULL) {
1160 hostap_proc = proc_mkdir("hostap", proc_net);
1162 printk(KERN_WARNING "Failed to mkdir "
1163 "/proc/net/hostap\n");
1171 static void __exit hostap_exit(void)
1173 if (hostap_proc != NULL) {
1175 remove_proc_entry("hostap", proc_net);
1178 hostap_crypto_deinit();
1182 EXPORT_SYMBOL(hostap_set_word);
1183 EXPORT_SYMBOL(hostap_set_string);
1184 EXPORT_SYMBOL(hostap_get_porttype);
1185 EXPORT_SYMBOL(hostap_set_encryption);
1186 EXPORT_SYMBOL(hostap_set_antsel);
1187 EXPORT_SYMBOL(hostap_set_roaming);
1188 EXPORT_SYMBOL(hostap_set_auth_algs);
1189 EXPORT_SYMBOL(hostap_dump_rx_header);
1190 EXPORT_SYMBOL(hostap_dump_tx_header);
1191 EXPORT_SYMBOL(hostap_80211_header_parse);
1192 EXPORT_SYMBOL(hostap_80211_prism_header_parse);
1193 EXPORT_SYMBOL(hostap_80211_get_hdrlen);
1194 EXPORT_SYMBOL(hostap_get_stats);
1195 EXPORT_SYMBOL(hostap_setup_dev);
1196 EXPORT_SYMBOL(hostap_proc);
1197 EXPORT_SYMBOL(hostap_set_multicast_list_queue);
1198 EXPORT_SYMBOL(hostap_set_hostapd);
1199 EXPORT_SYMBOL(hostap_set_hostapd_sta);
1200 EXPORT_SYMBOL(hostap_add_interface);
1201 EXPORT_SYMBOL(hostap_remove_interface);
1202 EXPORT_SYMBOL(prism2_update_comms_qual);
1204 module_init(hostap_init);
1205 module_exit(hostap_exit);