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/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");
41 #define TX_TIMEOUT (2 * HZ)
43 #define PRISM2_MAX_FRAME_SIZE 2304
44 #define PRISM2_MIN_MTU 256
46 #define PRISM2_MAX_MTU (PRISM2_MAX_FRAME_SIZE - (6 /* LLC */ + 8 /* WEP */))
49 struct net_device * hostap_add_interface(struct local_info *local,
50 int type, int rtnl_locked,
54 struct net_device *dev, *mdev;
55 struct hostap_interface *iface;
58 dev = alloc_etherdev(sizeof(struct hostap_interface));
62 iface = netdev_priv(dev);
66 list_add(&iface->list, &local->hostap_interfaces);
69 memcpy(dev->dev_addr, mdev->dev_addr, ETH_ALEN);
70 dev->base_addr = mdev->base_addr;
72 dev->mem_start = mdev->mem_start;
73 dev->mem_end = mdev->mem_end;
75 hostap_setup_dev(dev, local, 0);
76 dev->destructor = free_netdev;
78 sprintf(dev->name, "%s%s", prefix, name);
83 if (strchr(dev->name, '%'))
84 ret = dev_alloc_name(dev, dev->name);
86 SET_NETDEV_DEV(dev, mdev->dev.parent);
88 ret = register_netdevice(dev);
94 printk(KERN_WARNING "%s: failed to add new netdevice!\n",
100 printk(KERN_DEBUG "%s: registered netdevice %s\n",
101 mdev->name, dev->name);
107 void hostap_remove_interface(struct net_device *dev, int rtnl_locked,
108 int remove_from_list)
110 struct hostap_interface *iface;
115 iface = netdev_priv(dev);
117 if (remove_from_list) {
118 list_del(&iface->list);
121 if (dev == iface->local->ddev)
122 iface->local->ddev = NULL;
123 else if (dev == iface->local->apdev)
124 iface->local->apdev = NULL;
125 else if (dev == iface->local->stadev)
126 iface->local->stadev = NULL;
129 unregister_netdevice(dev);
131 unregister_netdev(dev);
133 /* dev->destructor = free_netdev() will free the device data, including
134 * private data, when removing the device */
138 static inline int prism2_wds_special_addr(u8 *addr)
140 if (addr[0] || addr[1] || addr[2] || addr[3] || addr[4] || addr[5])
147 int prism2_wds_add(local_info_t *local, u8 *remote_addr,
150 struct net_device *dev;
151 struct list_head *ptr;
152 struct hostap_interface *iface, *empty, *match;
154 empty = match = NULL;
155 read_lock_bh(&local->iface_lock);
156 list_for_each(ptr, &local->hostap_interfaces) {
157 iface = list_entry(ptr, struct hostap_interface, list);
158 if (iface->type != HOSTAP_INTERFACE_WDS)
161 if (prism2_wds_special_addr(iface->u.wds.remote_addr))
163 else if (memcmp(iface->u.wds.remote_addr, remote_addr,
169 if (!match && empty && !prism2_wds_special_addr(remote_addr)) {
170 /* take pre-allocated entry into use */
171 memcpy(empty->u.wds.remote_addr, remote_addr, ETH_ALEN);
172 read_unlock_bh(&local->iface_lock);
173 printk(KERN_DEBUG "%s: using pre-allocated WDS netdevice %s\n",
174 local->dev->name, empty->dev->name);
177 read_unlock_bh(&local->iface_lock);
179 if (!prism2_wds_special_addr(remote_addr)) {
182 hostap_add_sta(local->ap, remote_addr);
185 if (local->wds_connections >= local->wds_max_connections)
188 /* verify that there is room for wds# postfix in the interface name */
189 if (strlen(local->dev->name) > IFNAMSIZ - 5) {
190 printk(KERN_DEBUG "'%s' too long base device name\n",
195 dev = hostap_add_interface(local, HOSTAP_INTERFACE_WDS, rtnl_locked,
196 local->ddev->name, "wds%d");
200 iface = netdev_priv(dev);
201 memcpy(iface->u.wds.remote_addr, remote_addr, ETH_ALEN);
203 local->wds_connections++;
209 int prism2_wds_del(local_info_t *local, u8 *remote_addr,
210 int rtnl_locked, int do_not_remove)
213 struct list_head *ptr;
214 struct hostap_interface *iface, *selected = NULL;
216 write_lock_irqsave(&local->iface_lock, flags);
217 list_for_each(ptr, &local->hostap_interfaces) {
218 iface = list_entry(ptr, struct hostap_interface, list);
219 if (iface->type != HOSTAP_INTERFACE_WDS)
222 if (memcmp(iface->u.wds.remote_addr, remote_addr,
228 if (selected && !do_not_remove)
229 list_del(&selected->list);
230 write_unlock_irqrestore(&local->iface_lock, flags);
234 memset(selected->u.wds.remote_addr, 0, ETH_ALEN);
236 hostap_remove_interface(selected->dev, rtnl_locked, 0);
237 local->wds_connections--;
241 return selected ? 0 : -ENODEV;
245 u16 hostap_tx_callback_register(local_info_t *local,
246 void (*func)(struct sk_buff *, int ok, void *),
250 struct hostap_tx_callback_info *entry;
252 entry = kmalloc(sizeof(*entry),
260 spin_lock_irqsave(&local->lock, flags);
261 entry->idx = local->tx_callback ? local->tx_callback->idx + 1 : 1;
262 entry->next = local->tx_callback;
263 local->tx_callback = entry;
264 spin_unlock_irqrestore(&local->lock, flags);
270 int hostap_tx_callback_unregister(local_info_t *local, u16 idx)
273 struct hostap_tx_callback_info *cb, *prev = NULL;
275 spin_lock_irqsave(&local->lock, flags);
276 cb = local->tx_callback;
277 while (cb != NULL && cb->idx != idx) {
283 local->tx_callback = cb->next;
285 prev->next = cb->next;
288 spin_unlock_irqrestore(&local->lock, flags);
294 /* val is in host byte order */
295 int hostap_set_word(struct net_device *dev, int rid, u16 val)
297 struct hostap_interface *iface;
298 u16 tmp = cpu_to_le16(val);
299 iface = netdev_priv(dev);
300 return iface->local->func->set_rid(dev, rid, &tmp, 2);
304 int hostap_set_string(struct net_device *dev, int rid, const char *val)
306 struct hostap_interface *iface;
307 char buf[MAX_SSID_LEN + 2];
310 iface = netdev_priv(dev);
312 if (len > MAX_SSID_LEN)
314 memset(buf, 0, sizeof(buf));
315 buf[0] = len; /* little endian 16 bit word */
316 memcpy(buf + 2, val, len);
318 return iface->local->func->set_rid(dev, rid, &buf, MAX_SSID_LEN + 2);
322 u16 hostap_get_porttype(local_info_t *local)
324 if (local->iw_mode == IW_MODE_ADHOC && local->pseudo_adhoc)
325 return HFA384X_PORTTYPE_PSEUDO_IBSS;
326 if (local->iw_mode == IW_MODE_ADHOC)
327 return HFA384X_PORTTYPE_IBSS;
328 if (local->iw_mode == IW_MODE_INFRA)
329 return HFA384X_PORTTYPE_BSS;
330 if (local->iw_mode == IW_MODE_REPEAT)
331 return HFA384X_PORTTYPE_WDS;
332 if (local->iw_mode == IW_MODE_MONITOR)
333 return HFA384X_PORTTYPE_PSEUDO_IBSS;
334 return HFA384X_PORTTYPE_HOSTAP;
338 int hostap_set_encryption(local_info_t *local)
341 int i, keylen, len, idx;
342 char keybuf[WEP_KEY_LEN + 1];
343 enum { NONE, WEP, OTHER } encrypt_type;
345 idx = local->tx_keyidx;
346 if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
348 else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
351 encrypt_type = OTHER;
353 if (local->func->get_rid(local->dev, HFA384X_RID_CNFWEPFLAGS, &val, 2,
355 printk(KERN_DEBUG "Could not read current WEP flags.\n");
361 if (encrypt_type != NONE || local->privacy_invoked)
362 val |= HFA384X_WEPFLAGS_PRIVACYINVOKED;
364 val &= ~HFA384X_WEPFLAGS_PRIVACYINVOKED;
366 if (local->open_wep || encrypt_type == NONE ||
367 ((local->ieee_802_1x || local->wpa) && local->host_decrypt))
368 val &= ~HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
370 val |= HFA384X_WEPFLAGS_EXCLUDEUNENCRYPTED;
372 if ((encrypt_type != NONE || local->privacy_invoked) &&
373 (encrypt_type == OTHER || local->host_encrypt))
374 val |= HFA384X_WEPFLAGS_HOSTENCRYPT;
376 val &= ~HFA384X_WEPFLAGS_HOSTENCRYPT;
377 if ((encrypt_type != NONE || local->privacy_invoked) &&
378 (encrypt_type == OTHER || local->host_decrypt))
379 val |= HFA384X_WEPFLAGS_HOSTDECRYPT;
381 val &= ~HFA384X_WEPFLAGS_HOSTDECRYPT;
383 if (val != old_val &&
384 hostap_set_word(local->dev, HFA384X_RID_CNFWEPFLAGS, val)) {
385 printk(KERN_DEBUG "Could not write new WEP flags (0x%x)\n",
390 if (encrypt_type != WEP)
393 /* 104-bit support seems to require that all the keys are set to the
395 keylen = 6; /* first 5 octets */
396 len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
397 NULL, local->crypt[idx]->priv);
398 if (idx >= 0 && idx < WEP_KEYS && len > 5)
399 keylen = WEP_KEY_LEN + 1; /* first 13 octets */
401 for (i = 0; i < WEP_KEYS; i++) {
402 memset(keybuf, 0, sizeof(keybuf));
403 if (local->crypt[i]) {
404 (void) local->crypt[i]->ops->get_key(
405 keybuf, sizeof(keybuf),
406 NULL, local->crypt[i]->priv);
408 if (local->func->set_rid(local->dev,
409 HFA384X_RID_CNFDEFAULTKEY0 + i,
411 printk(KERN_DEBUG "Could not set key %d (len=%d)\n",
416 if (hostap_set_word(local->dev, HFA384X_RID_CNFWEPDEFAULTKEYID, idx)) {
417 printk(KERN_DEBUG "Could not set default keyid %d\n", idx);
424 printk(KERN_DEBUG "%s: encryption setup failed\n", local->dev->name);
429 int hostap_set_antsel(local_info_t *local)
434 if (local->antsel_tx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
435 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
436 HFA386X_CR_TX_CONFIGURE,
438 val &= ~(BIT(2) | BIT(1));
439 switch (local->antsel_tx) {
440 case HOSTAP_ANTSEL_DIVERSITY:
443 case HOSTAP_ANTSEL_LOW:
445 case HOSTAP_ANTSEL_HIGH:
450 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
451 HFA386X_CR_TX_CONFIGURE, &val, NULL)) {
452 printk(KERN_INFO "%s: setting TX AntSel failed\n",
458 if (local->antsel_rx != HOSTAP_ANTSEL_DO_NOT_TOUCH &&
459 local->func->cmd(local->dev, HFA384X_CMDCODE_READMIF,
460 HFA386X_CR_RX_CONFIGURE,
462 val &= ~(BIT(1) | BIT(0));
463 switch (local->antsel_rx) {
464 case HOSTAP_ANTSEL_DIVERSITY:
466 case HOSTAP_ANTSEL_LOW:
469 case HOSTAP_ANTSEL_HIGH:
470 val |= BIT(0) | BIT(1);
474 if (local->func->cmd(local->dev, HFA384X_CMDCODE_WRITEMIF,
475 HFA386X_CR_RX_CONFIGURE, &val, NULL)) {
476 printk(KERN_INFO "%s: setting RX AntSel failed\n",
486 int hostap_set_roaming(local_info_t *local)
490 switch (local->host_roaming) {
492 val = HFA384X_ROAMING_HOST;
495 val = HFA384X_ROAMING_DISABLED;
499 val = HFA384X_ROAMING_FIRMWARE;
503 return hostap_set_word(local->dev, HFA384X_RID_CNFROAMINGMODE, val);
507 int hostap_set_auth_algs(local_info_t *local)
509 int val = local->auth_algs;
510 /* At least STA f/w v0.6.2 seems to have issues with cnfAuthentication
511 * set to include both Open and Shared Key flags. It tries to use
512 * Shared Key authentication in that case even if WEP keys are not
513 * configured.. STA f/w v0.7.6 is able to handle such configuration,
514 * but it is unknown when this was fixed between 0.6.2 .. 0.7.6. */
515 if (local->sta_fw_ver < PRISM2_FW_VER(0,7,0) &&
516 val != PRISM2_AUTH_OPEN && val != PRISM2_AUTH_SHARED_KEY)
517 val = PRISM2_AUTH_OPEN;
519 if (hostap_set_word(local->dev, HFA384X_RID_CNFAUTHENTICATION, val)) {
520 printk(KERN_INFO "%s: cnfAuthentication setting to 0x%x "
521 "failed\n", local->dev->name, local->auth_algs);
529 void hostap_dump_rx_header(const char *name, const struct hfa384x_rx_frame *rx)
533 status = __le16_to_cpu(rx->status);
535 printk(KERN_DEBUG "%s: RX status=0x%04x (port=%d, type=%d, "
536 "fcserr=%d) silence=%d signal=%d rate=%d rxflow=%d; "
538 name, status, (status >> 8) & 0x07, status >> 13, status & 1,
539 rx->silence, rx->signal, rx->rate, rx->rxflow, jiffies);
541 fc = __le16_to_cpu(rx->frame_control);
542 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
544 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
545 __le16_to_cpu(rx->duration_id), __le16_to_cpu(rx->seq_ctrl),
546 __le16_to_cpu(rx->data_len),
547 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
548 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
550 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
552 MAC2STR(rx->addr1), MAC2STR(rx->addr2), MAC2STR(rx->addr3),
555 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
556 MAC2STR(rx->dst_addr), MAC2STR(rx->src_addr),
557 __be16_to_cpu(rx->len));
561 void hostap_dump_tx_header(const char *name, const struct hfa384x_tx_frame *tx)
565 printk(KERN_DEBUG "%s: TX status=0x%04x retry_count=%d tx_rate=%d "
566 "tx_control=0x%04x; jiffies=%ld\n",
567 name, __le16_to_cpu(tx->status), tx->retry_count, tx->tx_rate,
568 __le16_to_cpu(tx->tx_control), jiffies);
570 fc = __le16_to_cpu(tx->frame_control);
571 printk(KERN_DEBUG " FC=0x%04x (type=%d:%d) dur=0x%04x seq=0x%04x "
573 fc, WLAN_FC_GET_TYPE(fc) >> 2, WLAN_FC_GET_STYPE(fc) >> 4,
574 __le16_to_cpu(tx->duration_id), __le16_to_cpu(tx->seq_ctrl),
575 __le16_to_cpu(tx->data_len),
576 fc & IEEE80211_FCTL_TODS ? " [ToDS]" : "",
577 fc & IEEE80211_FCTL_FROMDS ? " [FromDS]" : "");
579 printk(KERN_DEBUG " A1=" MACSTR " A2=" MACSTR " A3=" MACSTR " A4="
581 MAC2STR(tx->addr1), MAC2STR(tx->addr2), MAC2STR(tx->addr3),
584 printk(KERN_DEBUG " dst=" MACSTR " src=" MACSTR " len=%d\n",
585 MAC2STR(tx->dst_addr), MAC2STR(tx->src_addr),
586 __be16_to_cpu(tx->len));
590 int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
592 memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
597 int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
599 const unsigned char *mac = skb_mac_header(skb);
601 if (*(u32 *)mac == LWNG_CAP_DID_BASE) {
602 memcpy(haddr, mac + sizeof(struct linux_wlan_ng_prism_hdr) + 10,
603 ETH_ALEN); /* addr2 */
604 } else { /* (*(u32 *)mac == htonl(LWNG_CAPHDR_VERSION)) */
605 memcpy(haddr, mac + sizeof(struct linux_wlan_ng_cap_hdr) + 10,
606 ETH_ALEN); /* addr2 */
612 int hostap_80211_get_hdrlen(u16 fc)
616 switch (WLAN_FC_GET_TYPE(fc)) {
617 case IEEE80211_FTYPE_DATA:
618 if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
619 hdrlen = 30; /* Addr4 */
621 case IEEE80211_FTYPE_CTL:
622 switch (WLAN_FC_GET_STYPE(fc)) {
623 case IEEE80211_STYPE_CTS:
624 case IEEE80211_STYPE_ACK:
638 struct net_device_stats *hostap_get_stats(struct net_device *dev)
640 struct hostap_interface *iface;
641 iface = netdev_priv(dev);
642 return &iface->stats;
646 static int prism2_close(struct net_device *dev)
648 struct hostap_interface *iface;
651 PDEBUG(DEBUG_FLOW, "%s: prism2_close\n", dev->name);
653 iface = netdev_priv(dev);
654 local = iface->local;
656 if (dev == local->ddev) {
657 prism2_sta_deauth(local, WLAN_REASON_DEAUTH_LEAVING);
659 #ifndef PRISM2_NO_KERNEL_IEEE80211_MGMT
660 if (!local->hostapd && dev == local->dev &&
661 (!local->func->card_present || local->func->card_present(local)) &&
662 local->hw_ready && local->ap && local->iw_mode == IW_MODE_MASTER)
663 hostap_deauth_all_stas(dev, local->ap, 1);
664 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
666 if (dev == local->dev) {
667 local->func->hw_shutdown(dev, HOSTAP_HW_ENABLE_CMDCOMPL);
670 if (netif_running(dev)) {
671 netif_stop_queue(dev);
672 netif_device_detach(dev);
675 flush_scheduled_work();
677 module_put(local->hw_module);
679 local->num_dev_open--;
681 if (dev != local->dev && local->dev->flags & IFF_UP &&
682 local->master_dev_auto_open && local->num_dev_open == 1) {
683 /* Close master radio interface automatically if it was also
684 * opened automatically and we are now closing the last
685 * remaining non-master device. */
686 dev_close(local->dev);
693 static int prism2_open(struct net_device *dev)
695 struct hostap_interface *iface;
698 PDEBUG(DEBUG_FLOW, "%s: prism2_open\n", dev->name);
700 iface = netdev_priv(dev);
701 local = iface->local;
704 printk(KERN_DEBUG "%s: could not set interface UP - no PRI "
709 if ((local->func->card_present && !local->func->card_present(local)) ||
710 local->hw_downloading)
713 if (!try_module_get(local->hw_module))
715 local->num_dev_open++;
717 if (!local->dev_enabled && local->func->hw_enable(dev, 1)) {
718 printk(KERN_WARNING "%s: could not enable MAC port\n",
723 if (!local->dev_enabled)
724 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
725 local->dev_enabled = 1;
727 if (dev != local->dev && !(local->dev->flags & IFF_UP)) {
728 /* Master radio interface is needed for all operation, so open
729 * it automatically when any virtual net_device is opened. */
730 local->master_dev_auto_open = 1;
731 dev_open(local->dev);
734 netif_device_attach(dev);
735 netif_start_queue(dev);
741 static int prism2_set_mac_address(struct net_device *dev, void *p)
743 struct hostap_interface *iface;
745 struct list_head *ptr;
746 struct sockaddr *addr = p;
748 iface = netdev_priv(dev);
749 local = iface->local;
751 if (local->func->set_rid(dev, HFA384X_RID_CNFOWNMACADDR, addr->sa_data,
752 ETH_ALEN) < 0 || local->func->reset_port(dev))
755 read_lock_bh(&local->iface_lock);
756 list_for_each(ptr, &local->hostap_interfaces) {
757 iface = list_entry(ptr, struct hostap_interface, list);
758 memcpy(iface->dev->dev_addr, addr->sa_data, ETH_ALEN);
760 memcpy(local->dev->dev_addr, addr->sa_data, ETH_ALEN);
761 read_unlock_bh(&local->iface_lock);
767 /* TODO: to be further implemented as soon as Prism2 fully supports
768 * GroupAddresses and correct documentation is available */
769 void hostap_set_multicast_list_queue(struct work_struct *work)
771 local_info_t *local =
772 container_of(work, local_info_t, set_multicast_list_queue);
773 struct net_device *dev = local->dev;
774 struct hostap_interface *iface;
776 iface = netdev_priv(dev);
777 if (hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
778 local->is_promisc)) {
779 printk(KERN_INFO "%s: %sabling promiscuous mode failed\n",
780 dev->name, local->is_promisc ? "en" : "dis");
785 static void hostap_set_multicast_list(struct net_device *dev)
788 /* FIX: promiscuous mode seems to be causing a lot of problems with
789 * some station firmware versions (FCSErr frames, invalid MACPort, etc.
790 * corrupted incoming frames). This code is now commented out while the
791 * problems are investigated. */
792 struct hostap_interface *iface;
795 iface = netdev_priv(dev);
796 local = iface->local;
797 if ((dev->flags & IFF_ALLMULTI) || (dev->flags & IFF_PROMISC)) {
798 local->is_promisc = 1;
800 local->is_promisc = 0;
803 schedule_work(&local->set_multicast_list_queue);
808 static int prism2_change_mtu(struct net_device *dev, int new_mtu)
810 if (new_mtu < PRISM2_MIN_MTU || new_mtu > PRISM2_MAX_MTU)
818 static void prism2_tx_timeout(struct net_device *dev)
820 struct hostap_interface *iface;
822 struct hfa384x_regs regs;
824 iface = netdev_priv(dev);
825 local = iface->local;
827 printk(KERN_WARNING "%s Tx timed out! Resetting card\n", dev->name);
828 netif_stop_queue(local->dev);
830 local->func->read_regs(dev, ®s);
831 printk(KERN_DEBUG "%s: CMD=%04x EVSTAT=%04x "
832 "OFFSET0=%04x OFFSET1=%04x SWSUPPORT0=%04x\n",
833 dev->name, regs.cmd, regs.evstat, regs.offset0, regs.offset1,
836 local->func->schedule_reset(local);
840 void hostap_setup_dev(struct net_device *dev, local_info_t *local,
843 struct hostap_interface *iface;
845 iface = netdev_priv(dev);
848 /* kernel callbacks */
849 dev->get_stats = hostap_get_stats;
851 /* Currently, we point to the proper spy_data only on
852 * the main_dev. This could be fixed. Jean II */
853 iface->wireless_data.spy_data = &iface->spy_data;
854 dev->wireless_data = &iface->wireless_data;
856 dev->wireless_handlers =
857 (struct iw_handler_def *) &hostap_iw_handler_def;
858 dev->do_ioctl = hostap_ioctl;
859 dev->open = prism2_open;
860 dev->stop = prism2_close;
861 dev->hard_start_xmit = hostap_data_start_xmit;
862 dev->set_mac_address = prism2_set_mac_address;
863 dev->set_multicast_list = hostap_set_multicast_list;
864 dev->change_mtu = prism2_change_mtu;
865 dev->tx_timeout = prism2_tx_timeout;
866 dev->watchdog_timeo = TX_TIMEOUT;
868 dev->mtu = local->mtu;
870 /* use main radio device queue */
871 dev->tx_queue_len = 0;
874 SET_ETHTOOL_OPS(dev, &prism2_ethtool_ops);
876 netif_stop_queue(dev);
880 static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
882 struct net_device *dev = local->dev;
887 printk(KERN_DEBUG "%s: enabling hostapd mode\n", dev->name);
889 local->apdev = hostap_add_interface(local, HOSTAP_INTERFACE_AP,
890 rtnl_locked, local->ddev->name,
892 if (local->apdev == NULL)
895 local->apdev->hard_start_xmit = hostap_mgmt_start_xmit;
896 local->apdev->type = ARPHRD_IEEE80211;
897 local->apdev->hard_header_parse = hostap_80211_header_parse;
903 static int hostap_disable_hostapd(local_info_t *local, int rtnl_locked)
905 struct net_device *dev = local->dev;
907 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
909 hostap_remove_interface(local->apdev, rtnl_locked, 1);
916 static int hostap_enable_hostapd_sta(local_info_t *local, int rtnl_locked)
918 struct net_device *dev = local->dev;
923 printk(KERN_DEBUG "%s: enabling hostapd STA mode\n", dev->name);
925 local->stadev = hostap_add_interface(local, HOSTAP_INTERFACE_STA,
926 rtnl_locked, local->ddev->name,
928 if (local->stadev == NULL)
935 static int hostap_disable_hostapd_sta(local_info_t *local, int rtnl_locked)
937 struct net_device *dev = local->dev;
939 printk(KERN_DEBUG "%s: disabling hostapd mode\n", dev->name);
941 hostap_remove_interface(local->stadev, rtnl_locked, 1);
942 local->stadev = NULL;
948 int hostap_set_hostapd(local_info_t *local, int val, int rtnl_locked)
952 if (val < 0 || val > 1)
955 if (local->hostapd == val)
959 ret = hostap_enable_hostapd(local, rtnl_locked);
964 ret = hostap_disable_hostapd(local, rtnl_locked);
973 int hostap_set_hostapd_sta(local_info_t *local, int val, int rtnl_locked)
977 if (val < 0 || val > 1)
980 if (local->hostapd_sta == val)
984 ret = hostap_enable_hostapd_sta(local, rtnl_locked);
986 local->hostapd_sta = 1;
988 local->hostapd_sta = 0;
989 ret = hostap_disable_hostapd_sta(local, rtnl_locked);
991 local->hostapd_sta = 1;
999 int prism2_update_comms_qual(struct net_device *dev)
1001 struct hostap_interface *iface;
1002 local_info_t *local;
1004 struct hfa384x_comms_quality sq;
1006 iface = netdev_priv(dev);
1007 local = iface->local;
1008 if (!local->sta_fw_ver)
1010 else if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1)) {
1011 if (local->func->get_rid(local->dev,
1012 HFA384X_RID_DBMCOMMSQUALITY,
1013 &sq, sizeof(sq), 1) >= 0) {
1014 local->comms_qual = (s16) le16_to_cpu(sq.comm_qual);
1015 local->avg_signal = (s16) le16_to_cpu(sq.signal_level);
1016 local->avg_noise = (s16) le16_to_cpu(sq.noise_level);
1017 local->last_comms_qual_update = jiffies;
1021 if (local->func->get_rid(local->dev, HFA384X_RID_COMMSQUALITY,
1022 &sq, sizeof(sq), 1) >= 0) {
1023 local->comms_qual = le16_to_cpu(sq.comm_qual);
1024 local->avg_signal = HFA384X_LEVEL_TO_dBm(
1025 le16_to_cpu(sq.signal_level));
1026 local->avg_noise = HFA384X_LEVEL_TO_dBm(
1027 le16_to_cpu(sq.noise_level));
1028 local->last_comms_qual_update = jiffies;
1037 int prism2_sta_send_mgmt(local_info_t *local, u8 *dst, u16 stype,
1038 u8 *body, size_t bodylen)
1040 struct sk_buff *skb;
1041 struct hostap_ieee80211_mgmt *mgmt;
1042 struct hostap_skb_tx_data *meta;
1043 struct net_device *dev = local->dev;
1045 skb = dev_alloc_skb(IEEE80211_MGMT_HDR_LEN + bodylen);
1049 mgmt = (struct hostap_ieee80211_mgmt *)
1050 skb_put(skb, IEEE80211_MGMT_HDR_LEN);
1051 memset(mgmt, 0, IEEE80211_MGMT_HDR_LEN);
1052 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1053 memcpy(mgmt->da, dst, ETH_ALEN);
1054 memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
1055 memcpy(mgmt->bssid, dst, ETH_ALEN);
1057 memcpy(skb_put(skb, bodylen), body, bodylen);
1059 meta = (struct hostap_skb_tx_data *) skb->cb;
1060 memset(meta, 0, sizeof(*meta));
1061 meta->magic = HOSTAP_SKB_TX_DATA_MAGIC;
1062 meta->iface = netdev_priv(dev);
1065 skb_reset_mac_header(skb);
1066 skb_reset_network_header(skb);
1067 dev_queue_xmit(skb);
1073 int prism2_sta_deauth(local_info_t *local, u16 reason)
1075 union iwreq_data wrqu;
1078 if (local->iw_mode != IW_MODE_INFRA ||
1079 memcmp(local->bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0 ||
1080 memcmp(local->bssid, "\x44\x44\x44\x44\x44\x44", ETH_ALEN) == 0)
1083 reason = cpu_to_le16(reason);
1084 ret = prism2_sta_send_mgmt(local, local->bssid, IEEE80211_STYPE_DEAUTH,
1086 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
1087 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
1092 struct proc_dir_entry *hostap_proc;
1094 static int __init hostap_init(void)
1096 if (proc_net != NULL) {
1097 hostap_proc = proc_mkdir("hostap", proc_net);
1099 printk(KERN_WARNING "Failed to mkdir "
1100 "/proc/net/hostap\n");
1108 static void __exit hostap_exit(void)
1110 if (hostap_proc != NULL) {
1112 remove_proc_entry("hostap", proc_net);
1117 EXPORT_SYMBOL(hostap_set_word);
1118 EXPORT_SYMBOL(hostap_set_string);
1119 EXPORT_SYMBOL(hostap_get_porttype);
1120 EXPORT_SYMBOL(hostap_set_encryption);
1121 EXPORT_SYMBOL(hostap_set_antsel);
1122 EXPORT_SYMBOL(hostap_set_roaming);
1123 EXPORT_SYMBOL(hostap_set_auth_algs);
1124 EXPORT_SYMBOL(hostap_dump_rx_header);
1125 EXPORT_SYMBOL(hostap_dump_tx_header);
1126 EXPORT_SYMBOL(hostap_80211_header_parse);
1127 EXPORT_SYMBOL(hostap_80211_get_hdrlen);
1128 EXPORT_SYMBOL(hostap_get_stats);
1129 EXPORT_SYMBOL(hostap_setup_dev);
1130 EXPORT_SYMBOL(hostap_set_multicast_list_queue);
1131 EXPORT_SYMBOL(hostap_set_hostapd);
1132 EXPORT_SYMBOL(hostap_set_hostapd_sta);
1133 EXPORT_SYMBOL(hostap_add_interface);
1134 EXPORT_SYMBOL(hostap_remove_interface);
1135 EXPORT_SYMBOL(prism2_update_comms_qual);
1137 module_init(hostap_init);
1138 module_exit(hostap_exit);