1 files changed, 929 insertions, 0 deletions

diff --git a/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c b/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c
new file mode 100644
index 0000000..0ac3c50
--- /dev/null
+++ b/usr.sbin/wpa/wpa_supplicant/driver_freebsd.c
@@ -0,0 +1,929 @@
+/*
+ * WPA Supplicant - driver interaction with BSD net80211 layer
+ * Copyright (c) 2004, Sam Leffler <sam@errno.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ *
+ * $FreeBSD$
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include "common.h"
+#include "driver.h"
+#include "eloop.h"
+#include "l2_packet.h"
+#include "ieee802_11_defs.h"
+
+#include <sys/socket.h>
+#include <net/if.h>
+#include <net/if_media.h>
+#include <net/ethernet.h>
+
+#include <net80211/ieee80211_ioctl.h>
+
+struct wpa_driver_bsd_data {
+	int	sock;			/* open socket for 802.11 ioctls */
+	int	route;			/* routing socket for events */
+	char	ifname[IFNAMSIZ+1];	/* interface name */
+	unsigned int ifindex;		/* interface index */
+	void	*ctx;
+	int	prev_roaming;		/* roaming state to restore on deinit */
+	int	prev_privacy;		/* privacy state to restore on deinit */
+	int	prev_wpa;		/* wpa state to restore on deinit */
+	int	prev_scanvalid;		/* scan valid to restore on deinit */
+	uint8_t	lastssid[IEEE80211_NWID_LEN];
+	int	lastssid_len;
+	uint32_t drivercaps;		/* general driver capabilities */
+	uint32_t cryptocaps;		/* hardware crypto support */
+	enum ieee80211_opmode opmode;	/* operation mode */
+};
+
+static enum ieee80211_opmode
+get80211opmode(struct wpa_driver_bsd_data *drv)
+{
+	struct ifmediareq ifmr;
+
+	(void) memset(&ifmr, 0, sizeof(ifmr));
+	(void) strncpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
+
+	if (ioctl(drv->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
+		if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) {
+			if (ifmr.ifm_current & IFM_FLAG0)
+				return IEEE80211_M_AHDEMO;
+			else
+				return IEEE80211_M_IBSS;
+		}
+		if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
+			return IEEE80211_M_HOSTAP;
+		if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
+			return IEEE80211_M_MONITOR;
+		if (ifmr.ifm_current & IFM_IEEE80211_MBSS)
+			return IEEE80211_M_MBSS;
+	}
+	return IEEE80211_M_STA;
+}
+
+static int
+set80211var(struct wpa_driver_bsd_data *drv, int op, const void *arg, int arg_len)
+{
+	struct ieee80211req ireq;
+
+	memset(&ireq, 0, sizeof(ireq));
+	strncpy(ireq.i_name, drv->ifname, IFNAMSIZ);
+	ireq.i_type = op;
+	ireq.i_len = arg_len;
+	ireq.i_data = (void *) arg;
+
+	if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
+		fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
+			op, arg_len, strerror(errno));
+		return -1;
+	}
+	return 0;
+}
+
+static int
+get80211var(struct wpa_driver_bsd_data *drv, int op, void *arg, int arg_len)
+{
+	struct ieee80211req ireq;
+
+	memset(&ireq, 0, sizeof(ireq));
+	strncpy(ireq.i_name, drv->ifname, IFNAMSIZ);
+	ireq.i_type = op;
+	ireq.i_len = arg_len;
+	ireq.i_data = arg;
+
+	if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
+		fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
+			op, arg_len, strerror(errno));
+		return -1;
+	}
+	return ireq.i_len;
+}
+
+static int
+set80211param(struct wpa_driver_bsd_data *drv, int op, int arg)
+{
+	struct ieee80211req ireq;
+
+	memset(&ireq, 0, sizeof(ireq));
+	strncpy(ireq.i_name, drv->ifname, IFNAMSIZ);
+	ireq.i_type = op;
+	ireq.i_val = arg;
+
+	if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
+		fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
+			op, arg, strerror(errno));
+		return -1;
+	}
+	return 0;
+}
+
+static int
+get80211param(struct wpa_driver_bsd_data *drv, int op)
+{
+	struct ieee80211req ireq;
+
+	memset(&ireq, 0, sizeof(ireq));
+	strncpy(ireq.i_name, drv->ifname, IFNAMSIZ);
+	ireq.i_type = op;
+
+	if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
+		fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
+			op, strerror(errno));
+		return -1;
+	}
+	return ireq.i_val;
+}
+
+static int
+getifflags(struct wpa_driver_bsd_data *drv, int *flags)
+{
+	struct ifreq ifr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(ifr.ifr_name, drv->ifname, sizeof (ifr.ifr_name));
+	if (ioctl(drv->sock, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
+		perror("SIOCGIFFLAGS");
+		return errno;
+	}
+	*flags = (ifr.ifr_flags & 0xffff) | (ifr.ifr_flagshigh << 16);
+	return 0;
+}
+
+static int
+setifflags(struct wpa_driver_bsd_data *drv, int flags)
+{
+	struct ifreq ifr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strncpy(ifr.ifr_name, drv->ifname, sizeof (ifr.ifr_name));
+	ifr.ifr_flags = flags & 0xffff;
+	ifr.ifr_flagshigh = flags >> 16;
+	if (ioctl(drv->sock, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) {
+		perror("SIOCSIFFLAGS");
+		return errno;
+	}
+	return 0;
+}
+
+static int
+wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	return get80211var(drv, IEEE80211_IOC_BSSID,
+		bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
+}
+
+#if 0
+static int
+wpa_driver_bsd_set_bssid(void *priv, const char *bssid)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	return set80211var(drv, IEEE80211_IOC_BSSID,
+		bssid, IEEE80211_ADDR_LEN);
+}
+#endif
+
+static int
+wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	return get80211var(drv, IEEE80211_IOC_SSID,
+		ssid, IEEE80211_NWID_LEN);
+}
+
+static int
+wpa_driver_bsd_set_ssid(void *priv, const char *ssid,
+			     size_t ssid_len)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
+}
+
+static int
+wpa_driver_bsd_set_wpa_ie(struct wpa_driver_bsd_data *drv,
+	const u8 *wpa_ie, size_t wpa_ie_len)
+{
+	struct ieee80211req ireq;
+
+	memset(&ireq, 0, sizeof(ireq));
+	strncpy(ireq.i_name, drv->ifname, IFNAMSIZ);
+	ireq.i_type = IEEE80211_IOC_APPIE;
+	ireq.i_val = IEEE80211_APPIE_WPA;
+	ireq.i_len = wpa_ie_len;
+	ireq.i_data = (void *) wpa_ie;
+	if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
+		fprintf(stderr,
+		    "ioctl[IEEE80211_IOC_APPIE:IEEE80211_APPIE_WPA]: %s\n",
+		    strerror(errno));
+		return -1;
+	}
+	return 0;
+}
+
+static int
+wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	int ret = 0;
+
+	wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
+		__FUNCTION__, wpa, privacy);
+
+	if (!wpa && wpa_driver_bsd_set_wpa_ie(drv, NULL, 0) < 0)
+		ret = -1;
+	if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
+		ret = -1;
+	if (set80211param(drv, IEEE80211_IOC_WPA, wpa) < 0)
+		ret = -1;
+
+	return ret;
+}
+
+static int
+wpa_driver_bsd_del_key(struct wpa_driver_bsd_data *drv, int key_idx,
+		       const unsigned char *addr)
+{
+	struct ieee80211req_del_key wk;
+
+	memset(&wk, 0, sizeof(wk));
+	if (addr != NULL &&
+	    bcmp(addr, "\xff\xff\xff\xff\xff\xff", IEEE80211_ADDR_LEN) != 0) {
+		struct ether_addr ea;
+
+		memcpy(&ea, addr, IEEE80211_ADDR_LEN);
+		wpa_printf(MSG_DEBUG, "%s: addr=%s keyidx=%d",
+			__func__, ether_ntoa(&ea), key_idx);
+		memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
+		wk.idk_keyix = (uint8_t) IEEE80211_KEYIX_NONE;
+	} else {
+		wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __func__, key_idx);
+		wk.idk_keyix = key_idx;
+	}
+	return set80211var(drv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
+}
+
+static int
+wpa_driver_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
+		       const unsigned char *addr, int key_idx, int set_tx,
+		       const u8 *seq, size_t seq_len,
+		       const u8 *key, size_t key_len)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	struct ieee80211req_key wk;
+	struct ether_addr ea;
+	char *alg_name;
+	u_int8_t cipher;
+
+	if (alg == WPA_ALG_NONE)
+		return wpa_driver_bsd_del_key(drv, key_idx, addr);
+
+	switch (alg) {
+	case WPA_ALG_WEP:
+		alg_name = "WEP";
+		cipher = IEEE80211_CIPHER_WEP;
+		break;
+	case WPA_ALG_TKIP:
+		alg_name = "TKIP";
+		cipher = IEEE80211_CIPHER_TKIP;
+		break;
+	case WPA_ALG_CCMP:
+		alg_name = "CCMP";
+		cipher = IEEE80211_CIPHER_AES_CCM;
+		break;
+	default:
+		wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
+			__func__, alg);
+		return -1;
+	}
+
+	memcpy(&ea, addr, IEEE80211_ADDR_LEN);
+	wpa_printf(MSG_DEBUG,
+	    "%s: alg=%s addr=%s key_idx=%d set_tx=%d seq_len=%zu key_len=%zu",
+	    __func__, alg_name, ether_ntoa(&ea), key_idx, set_tx,
+	    seq_len, key_len);
+
+	if (seq_len > sizeof(u_int64_t)) {
+		wpa_printf(MSG_DEBUG, "%s: seq_len %zu too big",
+			__func__, seq_len);
+		return -2;
+	}
+	if (key_len > sizeof(wk.ik_keydata)) {
+		wpa_printf(MSG_DEBUG, "%s: key length %zu too big",
+			__func__, key_len);
+		return -3;
+	}
+
+	memset(&wk, 0, sizeof(wk));
+	wk.ik_type = cipher;
+	wk.ik_flags = IEEE80211_KEY_RECV;
+	if (set_tx)
+		wk.ik_flags |= IEEE80211_KEY_XMIT;
+	memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
+	/*
+	 * Deduce whether group/global or unicast key by checking
+	 * the address (yech).  Note also that we can only mark global
+	 * keys default; doing this for a unicast key is an error.
+	 */
+	if (bcmp(addr, "\xff\xff\xff\xff\xff\xff", IEEE80211_ADDR_LEN) == 0) {
+		wk.ik_flags |= IEEE80211_KEY_GROUP;
+		wk.ik_keyix = key_idx;
+	} else {
+		wk.ik_keyix = (key_idx == 0 ? IEEE80211_KEYIX_NONE : key_idx);
+	}
+	if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
+		wk.ik_flags |= IEEE80211_KEY_DEFAULT;
+	/*
+	 * Ignore replay failures in IBSS and AHDEMO mode.
+	 */
+	if (drv->opmode == IEEE80211_M_IBSS ||
+	    drv->opmode == IEEE80211_M_AHDEMO)
+		wk.ik_flags |= IEEE80211_KEY_NOREPLAY;
+	wk.ik_keylen = key_len;
+	memcpy(&wk.ik_keyrsc, seq, seq_len);
+	wk.ik_keyrsc = le64toh(wk.ik_keyrsc);
+	memcpy(wk.ik_keydata, key, key_len);
+
+	return set80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
+}
+
+static int
+wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
+	return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
+}
+
+
+static int
+wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+
+	wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
+	return set80211param(drv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
+}
+
+static int
+wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	int authmode;
+
+	if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
+	    (auth_alg & WPA_AUTH_ALG_SHARED))
+		authmode = IEEE80211_AUTH_AUTO;
+	else if (auth_alg & WPA_AUTH_ALG_SHARED)
+		authmode = IEEE80211_AUTH_SHARED;
+	else
+		authmode = IEEE80211_AUTH_OPEN;
+
+	wpa_printf(MSG_DEBUG, "%s alg 0x%x authmode %u",
+		__func__, auth_alg, authmode);
+
+	return set80211param(drv, IEEE80211_IOC_AUTHMODE, authmode);
+}
+
+static int
+wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	struct ieee80211req_mlme mlme;
+
+	drv->lastssid_len = 0;
+
+	wpa_printf(MSG_DEBUG, "%s", __func__);
+	memset(&mlme, 0, sizeof(mlme));
+	mlme.im_op = IEEE80211_MLME_DEAUTH;
+	mlme.im_reason = reason_code;
+	memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
+	return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
+}
+
+static int
+wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	struct ieee80211req_mlme mlme;
+
+	drv->lastssid_len = 0;
+
+	wpa_printf(MSG_DEBUG, "%s", __func__);
+	memset(&mlme, 0, sizeof(mlme));
+	mlme.im_op = IEEE80211_MLME_DISASSOC;
+	mlme.im_reason = reason_code;
+	memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
+	return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
+}
+
+static int
+wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	struct ieee80211req_mlme mlme;
+	int flags, privacy;
+
+	wpa_printf(MSG_DEBUG,
+		"%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
+		, __func__
+		, params->ssid_len, params->ssid
+		, params->wpa_ie_len
+		, params->pairwise_suite
+		, params->group_suite
+		, params->key_mgmt_suite
+	);
+
+	/* NB: interface must be marked UP to associate */
+	if (getifflags(drv, &flags) != 0) {
+		wpa_printf(MSG_DEBUG, "%s did not mark interface UP", __func__);
+		return -1;
+	}
+	if ((flags & IFF_UP) == 0 && setifflags(drv, flags | IFF_UP) != 0) {
+		wpa_printf(MSG_DEBUG, "%s unable to mark interface UP",
+		    __func__);
+		return -1;
+	}
+
+        if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
+            < 0)
+                return -1;
+	if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
+		return -1;
+	/* XXX error handling is wrong but unclear what to do... */
+	if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
+		return -1;
+
+	privacy = !(params->pairwise_suite == CIPHER_NONE &&
+	    params->group_suite == CIPHER_NONE &&
+	    params->key_mgmt_suite == KEY_MGMT_NONE &&
+	    params->wpa_ie_len == 0);
+	wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
+
+	if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
+		return -1;
+
+	if (params->wpa_ie_len &&
+	    set80211param(drv, IEEE80211_IOC_WPA,
+			  params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
+		return -1;
+
+	memset(&mlme, 0, sizeof(mlme));
+	mlme.im_op = IEEE80211_MLME_ASSOC;
+	if (params->ssid != NULL)
+		memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
+	mlme.im_ssid_len = params->ssid_len;
+	if (params->bssid != NULL)
+		memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
+	if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
+		return -1;
+	memcpy(drv->lastssid, params->ssid, params->ssid_len);
+	drv->lastssid_len = params->ssid_len;
+	return 0;
+}
+
+static int
+wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	struct ieee80211_scan_req sr;
+	int i;
+	int flags;
+
+	/* XXX not true but easiest to perpetuate the myth */
+	/* NB: interface must be marked UP to do a scan */
+	if (getifflags(drv, &flags) != 0) {
+		wpa_printf(MSG_DEBUG, "%s did not mark interface UP", __func__);
+		return -1;
+	}
+	if ((flags & IFF_UP) == 0 && setifflags(drv, flags | IFF_UP) != 0) {
+		wpa_printf(MSG_DEBUG, "%s unable to mark interface UP",
+		    __func__);
+		return -1;
+	}
+
+	memset(&sr, 0, sizeof(sr));
+	sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE
+		    | IEEE80211_IOC_SCAN_ONCE
+		    | IEEE80211_IOC_SCAN_NOJOIN
+		    ;
+	sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
+	if (params->num_ssids > 0) {
+		sr.sr_nssid = params->num_ssids;
+#if 0
+		/* Boundary check is done by upper layer */
+		if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
+			sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
+#endif
+		/* NB: check scan cache first */
+		sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
+}
+	for (i = 0; i < sr.sr_nssid; i++) {
+		sr.sr_ssid[i].len = params->ssids[i].ssid_len;
+		os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
+			  sr.sr_ssid[i].len);
+	}
+	/* NB: net80211 delivers a scan complete event so no need to poll */
+	return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
+}
+
+#include <net/route.h>
+#include <net80211/ieee80211_freebsd.h>
+
+static void
+wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
+{
+	struct wpa_driver_bsd_data *drv = sock_ctx;
+	char buf[2048];
+	struct if_announcemsghdr *ifan;
+	struct if_msghdr *ifm;
+	struct rt_msghdr *rtm;
+	union wpa_event_data event;
+	struct ieee80211_michael_event *mic;
+	int n;
+
+	n = read(sock, buf, sizeof(buf));
+	if (n < 0) {
+		if (errno != EINTR && errno != EAGAIN)
+			perror("read(PF_ROUTE)");
+		return;
+	}
+
+	rtm = (struct rt_msghdr *) buf;
+	if (rtm->rtm_version != RTM_VERSION) {
+		wpa_printf(MSG_DEBUG, "Routing message version %d not "
+			"understood\n", rtm->rtm_version);
+		return;
+	}
+	memset(&event, 0, sizeof(event));
+	switch (rtm->rtm_type) {
+	case RTM_IFANNOUNCE:
+		ifan = (struct if_announcemsghdr *) rtm;
+		if (ifan->ifan_index != drv->ifindex)
+			break;
+		strlcpy(event.interface_status.ifname, drv->ifname,
+			sizeof(event.interface_status.ifname));
+		switch (ifan->ifan_what) {
+		case IFAN_DEPARTURE:
+			event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
+		default:
+			return;
+		}
+		wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
+			   event.interface_status.ifname,
+			   ifan->ifan_what == IFAN_DEPARTURE ?
+				"removed" : "added");
+		wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
+		break;
+	case RTM_IEEE80211:
+		ifan = (struct if_announcemsghdr *) rtm;
+		if (ifan->ifan_index != drv->ifindex)
+			break;
+		switch (ifan->ifan_what) {
+		case RTM_IEEE80211_ASSOC:
+		case RTM_IEEE80211_REASSOC:
+			wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
+			break;
+		case RTM_IEEE80211_DISASSOC:
+			wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
+			break;
+		case RTM_IEEE80211_SCAN:
+			wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
+			break;
+		case RTM_IEEE80211_REPLAY:
+			/* ignore */
+			break;
+		case RTM_IEEE80211_MICHAEL:
+			mic = (struct ieee80211_michael_event *) &ifan[1];
+			wpa_printf(MSG_DEBUG,
+				"Michael MIC failure wireless event: "
+				"keyix=%u src_addr=" MACSTR, mic->iev_keyix,
+				MAC2STR(mic->iev_src));
+
+			memset(&event, 0, sizeof(event));
+			event.michael_mic_failure.unicast =
+				!IEEE80211_IS_MULTICAST(mic->iev_dst);
+			wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
+				&event);
+			break;
+		}
+		break;
+	case RTM_IFINFO:
+		ifm = (struct if_msghdr *) rtm;
+		if (ifm->ifm_index != drv->ifindex)
+			break;
+		if ((rtm->rtm_flags & RTF_UP) == 0) {
+			strlcpy(event.interface_status.ifname, drv->ifname,
+				sizeof(event.interface_status.ifname));
+			event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
+			wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
+				   event.interface_status.ifname);
+			wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
+		}
+		break;
+	}
+}
+
+static int
+getmaxrate(const uint8_t rates[15], uint8_t nrates)
+{
+	int i, maxrate = -1;
+
+	for (i = 0; i < nrates; i++) {
+		int rate = rates[i] & IEEE80211_RATE_VAL;
+		if (rate > maxrate)
+			rate = maxrate;
+	}
+	return maxrate;
+}
+
+/* unalligned little endian access */     
+#define LE_READ_4(p)					\
+	((u_int32_t)					\
+	 ((((const u_int8_t *)(p))[0]      ) |		\
+	  (((const u_int8_t *)(p))[1] <<  8) |		\
+	  (((const u_int8_t *)(p))[2] << 16) |		\
+	  (((const u_int8_t *)(p))[3] << 24)))
+
+static int __inline
+iswpaoui(const u_int8_t *frm)
+{
+	return frm[1] > 3 && LE_READ_4(frm+2) == ((WPA_OUI_TYPE<<24)|WPA_OUI);
+}
+
+
+static void
+wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
+                              struct ieee80211req_scan_result *sr)
+{
+        struct wpa_scan_res *result, **tmp;
+        size_t extra_len;
+        u8 *pos;
+
+        extra_len = 2 + sr->isr_ssid_len;
+        extra_len += 2 + sr->isr_nrates;
+        extra_len += 3; /* ERP IE */
+        extra_len += sr->isr_ie_len;
+
+        result = os_zalloc(sizeof(*result) + extra_len);
+        if (result == NULL)
+                return;
+        os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
+        result->freq = sr->isr_freq;
+        result->beacon_int = sr->isr_intval;
+        result->caps = sr->isr_capinfo;
+        result->qual = sr->isr_rssi;
+        result->noise = sr->isr_noise;
+
+        pos = (u8 *)(result + 1);
+
+        *pos++ = WLAN_EID_SSID;
+        *pos++ = sr->isr_ssid_len;
+        os_memcpy(pos, sr + 1, sr->isr_ssid_len);
+        pos += sr->isr_ssid_len;
+
+        /*
+         * Deal all rates as supported rate.
+         * Because net80211 doesn't report extended supported rate or not.
+         */
+        *pos++ = WLAN_EID_SUPP_RATES;
+        *pos++ = sr->isr_nrates;
+        os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
+       pos += sr->isr_nrates;
+
+        *pos++ = WLAN_EID_ERP_INFO;
+        *pos++ = 1;
+        *pos++ = sr->isr_erp;
+
+        os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
+        pos += sr->isr_ie_len;
+
+        result->ie_len = pos - (u8 *)(result + 1);
+
+        tmp = os_realloc(res->res,
+                         (res->num + 1) * sizeof(struct wpa_scan_res *));
+        if (tmp == NULL) {
+                os_free(result);
+                return;
+        }
+        tmp[res->num++] = result;
+        res->res = tmp;
+}
+
+static struct wpa_scan_results *
+wpa_driver_bsd_get_scan_results2(void *priv)
+{
+	struct ieee80211req_scan_result *sr;
+	struct wpa_scan_results *res;
+	int len, rest;
+	uint8_t buf[24*1024], *pos;
+
+	len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
+	if (len < 0)
+		return NULL;
+
+	res = os_zalloc(sizeof(*res));
+	if (res == NULL)
+		return NULL;
+
+	pos = buf;
+	rest = len;
+	while (rest >= sizeof(struct ieee80211req_scan_result)) {
+		sr = (struct ieee80211req_scan_result *)pos;
+		wpa_driver_bsd_add_scan_entry(res, sr);
+		pos += sr->isr_len;
+		rest -= sr->isr_len;
+	}
+
+	wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
+		len, (unsigned long)res->num);
+
+	return (res);
+}
+
+
+#define	GETPARAM(drv, param, v) \
+	(((v) = get80211param(drv, param)) != -1)
+#define	IEEE80211_C_BGSCAN	0x20000000
+
+/*
+ * Set the scan cache valid threshold to 1.5 x bg scan interval
+ * to force all scan requests to consult the cache unless they
+ * explicitly bypass it.
+ */
+static int
+setscanvalid(struct wpa_driver_bsd_data *drv)
+{
+	int bgscan, scanvalid;
+
+	if (!GETPARAM(drv, IEEE80211_IOC_SCANVALID, drv->prev_scanvalid) ||
+	    !GETPARAM(drv, IEEE80211_IOC_BGSCAN_INTERVAL, bgscan))
+		return -1;
+	scanvalid = 3*bgscan/2;
+	return (drv->prev_scanvalid < scanvalid) ?
+	    set80211param(drv, IEEE80211_IOC_SCANVALID, scanvalid) : 0;
+}
+
+static void *
+wpa_driver_bsd_init(void *ctx, const char *ifname)
+{
+	struct wpa_driver_bsd_data *drv;
+	struct ieee80211_devcaps_req devcaps;
+	int flags;
+
+	drv = malloc(sizeof(*drv));
+	if (drv == NULL)
+		return NULL;
+	memset(drv, 0, sizeof(*drv));
+	/*
+	 * NB: We require the interface name be mappable to an index.
+	 *     This implies we do not support having wpa_supplicant
+	 *     wait for an interface to appear.  This seems ok; that
+	 *     doesn't belong here; it's really the job of devd.
+	 */
+	drv->ifindex = if_nametoindex(ifname);
+	if (drv->ifindex == 0) {
+		wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
+			   __func__, ifname);
+		goto fail1;
+	}
+	drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
+	if (drv->sock < 0)
+		goto fail1;
+	drv->ctx = ctx;
+	strncpy(drv->ifname, ifname, sizeof(drv->ifname));
+
+	/*
+	 * Mark the interface as down to ensure wpa_supplicant has exclusive
+	 * access to the net80211 state machine, do this before opening the
+	 * route socket to avoid a false event that the interface disappeared.
+	 */
+	if (getifflags(drv, &flags) == 0)
+		(void) setifflags(drv, flags &~ IFF_UP);
+
+	drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
+	if (drv->route < 0)
+		goto fail;
+	eloop_register_read_sock(drv->route,
+		wpa_driver_bsd_event_receive, ctx, drv);
+
+	if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps, sizeof(devcaps)) < 0) {
+		wpa_printf(MSG_DEBUG,
+		    "%s: failed to get device capabilities: %s",
+		    __func__, strerror(errno));
+		goto fail;
+	}
+	drv->drivercaps = devcaps.dc_drivercaps;
+	drv->cryptocaps = devcaps.dc_cryptocaps;
+
+	if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
+		wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
+			__func__, strerror(errno));
+		goto fail;
+	}
+	if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
+		wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
+			__func__, strerror(errno));
+		goto fail;
+	}
+	if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
+		wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
+			__func__, strerror(errno));
+		goto fail;
+	}
+	if (set80211param(drv, IEEE80211_IOC_ROAMING, IEEE80211_ROAMING_MANUAL) < 0) {
+		wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
+			   "roaming: %s", __func__, strerror(errno));
+		goto fail;
+	}
+	if (drv->drivercaps & IEEE80211_C_BGSCAN) {
+		/*
+		 * Driver does background scanning; force the scan valid
+		 * setting to 1.5 x bg scan interval so the scan cache is
+		 * always consulted before we force a foreground scan.
+		 */ 
+		if (setscanvalid(drv) < 0) {
+			wpa_printf(MSG_DEBUG,
+			    "%s: warning, failed to set scanvalid, scanning "
+			    "may be suboptimal: %s", __func__, strerror(errno));
+		}
+	}
+	if (set80211param(drv, IEEE80211_IOC_WPA, 1+2) < 0) {
+		wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support %s",
+			   __func__, strerror(errno));
+		goto fail;
+	}
+	drv->opmode = get80211opmode(drv);
+
+	return drv;
+fail:
+	close(drv->sock);
+fail1:
+	free(drv);
+	return NULL;
+}
+#undef GETPARAM
+
+static void
+wpa_driver_bsd_deinit(void *priv)
+{
+	struct wpa_driver_bsd_data *drv = priv;
+	int flags;
+
+	/* NB: mark interface down */
+	if (getifflags(drv, &flags) == 0)
+		(void) setifflags(drv, flags &~ IFF_UP);
+
+	wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
+	if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0) {
+		/* NB: don't whinge if device ejected or equivalent */
+		if (errno != ENXIO)
+			wpa_printf(MSG_DEBUG, "%s: failed to restore roaming "
+			    "state", __func__);
+	}
+	if (drv->drivercaps & IEEE80211_C_BGSCAN) {
+		/* XXX check return value */
+		(void) set80211param(drv, IEEE80211_IOC_SCANVALID,
+		    drv->prev_scanvalid);
+	}
+
+	(void) close(drv->route);		/* ioctl socket */
+	(void) close(drv->sock);		/* event socket */
+	free(drv);
+}
+
+
+struct wpa_driver_ops wpa_driver_bsd_ops = {
+	.name			= "bsd",
+	.desc			= "BSD 802.11 support (Atheros, etc.)",
+	.init			= wpa_driver_bsd_init,
+	.deinit			= wpa_driver_bsd_deinit,
+	.get_bssid		= wpa_driver_bsd_get_bssid,
+	.get_ssid		= wpa_driver_bsd_get_ssid,
+	.set_key		= wpa_driver_bsd_set_key,
+	.set_countermeasures	= wpa_driver_bsd_set_countermeasures,
+	.scan2			= wpa_driver_bsd_scan,
+	.get_scan_results2	= wpa_driver_bsd_get_scan_results2,
+	.deauthenticate		= wpa_driver_bsd_deauthenticate,
+	.disassociate		= wpa_driver_bsd_disassociate,
+	.associate		= wpa_driver_bsd_associate,
+};