hostapd: use patches to add the nl80211 driver instead of copying the files.

SVN-Revision: 10475

1 files changed, 2968 insertions, 0 deletions

diff --git a/package/hostapd/patches/002-add-nl80211-driver.patch b/package/hostapd/patches/002-add-nl80211-driver.patch
new file mode 100644
index 0000000000..ba178a0541
--- /dev/null
+++ b/package/hostapd/patches/002-add-nl80211-driver.patch
@@ -0,0 +1,2968 @@
+diff -urN hostapd.orig/driver_nl80211.c hostapd/driver_nl80211.c
+--- a/hostapd/driver_nl80211.c	1970-01-01 01:00:00.000000000 +0100
++++ b/hostapd/driver_nl80211.c	2008-02-16 19:46:38.000000000 +0100
+@@ -0,0 +1,2382 @@
++/*
++ * hostapd / Kernel driver communication via nl80211
++ * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
++ * Copyright (c) 2003-2004, Instant802 Networks, Inc.
++ * Copyright (c) 2005-2006, Devicescape Software, Inc.
++ * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
++ *
++ * 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.
++ */
++
++#include "includes.h"
++
++#include <sys/ioctl.h>
++#include <netlink/genl/genl.h>
++#include <netlink/genl/family.h>
++#include <netlink/genl/ctrl.h>
++#include <netlink/msg.h>
++#include <netlink/attr.h>
++#include <linux/nl80211.h>
++#include <net/if.h>
++#include <linux/if_packet.h>
++#include <linux/if_ether.h>   /* The L2 protocols */
++#include <linux/wireless.h>
++#include <net/if_arp.h>
++
++#include "hostapd.h"
++#include "driver.h"
++#include "ieee802_1x.h"
++#include "eloop.h"
++#include "ieee802_11.h"
++#include "sta_info.h"
++#include "hw_features.h"
++#include "mlme.h"
++#include "radiotap.h"
++#include "radiotap_iter.h"
++
++enum ieee80211_msg_type {
++	ieee80211_msg_normal = 0,
++	ieee80211_msg_tx_callback_ack = 1,
++	ieee80211_msg_tx_callback_fail = 2,
++};
++
++struct i802_driver_data {
++	struct hostapd_data *hapd;
++
++	char iface[IFNAMSIZ + 1];
++	int ioctl_sock; /* socket for ioctl() use */
++	int wext_sock; /* socket for wireless events */
++	int eapol_sock; /* socket for EAPOL frames */
++	int monitor_sock; /* socket for monitor */
++	int monitor_ifidx;
++
++	int default_if_indices[16];
++	int *if_indices;
++	int num_if_indices;
++
++	int we_version;
++	struct nl_handle *nl_handle;
++	struct nl_cache *nl_cache;
++	struct genl_family *nl80211;
++	int dtim_period;
++	unsigned int beacon_set:1;
++	unsigned int ieee802_1x_active:1;
++};
++
++
++static void add_ifidx(struct i802_driver_data *drv, int ifidx)
++{
++	int i;
++	int *old;
++
++	for (i = 0; i < drv->num_if_indices; i++) {
++		if (drv->if_indices[i] == 0) {
++			drv->if_indices[i] = ifidx;
++			return;
++		}
++	}
++
++	if (drv->if_indices != drv->default_if_indices)
++		old = drv->if_indices;
++	else
++		old = NULL;
++
++	drv->if_indices = realloc(old,
++				  sizeof(int) * (drv->num_if_indices + 1));
++	if (!drv->if_indices) {
++		if (!old)
++			drv->if_indices = drv->default_if_indices;
++		else
++			drv->if_indices = old;
++		wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
++			   "interfaces");
++		wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
++		return;
++	}
++	drv->if_indices[drv->num_if_indices] = ifidx;
++	drv->num_if_indices++;
++}
++
++
++static void del_ifidx(struct i802_driver_data *drv, int ifidx)
++{
++	int i;
++
++	for (i = 0; i < drv->num_if_indices; i++) {
++		if (drv->if_indices[i] == ifidx) {
++			drv->if_indices[i] = 0;
++			break;
++		}
++	}
++}
++
++
++static int have_ifidx(struct i802_driver_data *drv, int ifidx)
++{
++	int i;
++
++	for (i = 0; i < drv->num_if_indices; i++)
++		if (drv->if_indices[i] == ifidx)
++			return 1;
++
++	return 0;
++}
++
++
++/* helper for netlink get routines */
++static int ack_wait_handler(struct nl_msg *msg, void *arg)
++{
++	int *finished = arg;
++
++	*finished = 1;
++	return NL_STOP;
++}
++
++
++static int hostapd_set_iface_flags(struct i802_driver_data *drv,
++				   const char *ifname, int dev_up)
++{
++	struct ifreq ifr;
++
++	if (drv->ioctl_sock < 0)
++		return -1;
++
++	memset(&ifr, 0, sizeof(ifr));
++	os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
++
++	if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
++		perror("ioctl[SIOCGIFFLAGS]");
++		wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
++			   drv->iface);
++		return -1;
++	}
++
++	if (dev_up)
++		ifr.ifr_flags |= IFF_UP;
++	else
++		ifr.ifr_flags &= ~IFF_UP;
++
++	if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
++		perror("ioctl[SIOCSIFFLAGS]");
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_set_encryption(const char *iface, void *priv, const char *alg,
++			       const u8 *addr, int idx, const u8 *key,
++			       size_t key_len, int txkey)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++	int err = 0;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	if (strcmp(alg, "none") == 0) {
++		genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++			    0, NL80211_CMD_DEL_KEY, 0);
++	} else {
++		genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++			    0, NL80211_CMD_NEW_KEY, 0);
++		NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
++		if (strcmp(alg, "WEP") == 0) {
++			if (key_len == 5)
++				NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
++					    0x000FAC01);
++			else
++				NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
++					    0x000FAC05);
++		} else if (strcmp(alg, "TKIP") == 0)
++			NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
++		else if (strcmp(alg, "CCMP") == 0)
++			NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
++		else
++			goto out;
++	}
++
++	if (addr)
++		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++	NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
++		if (err != -ENOENT) {
++			err = 0;
++			goto out;
++		}
++	}
++
++	/*
++	 * If we need to set the default TX key we do that below,
++	 * otherwise we're done here.
++	 */
++	if (!txkey || addr) {
++		ret = 0;
++		goto out;
++	}
++
++	nlmsg_free(msg);
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_KEY, 0);
++	NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++	NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
++		if (err != -ENOENT) {
++			err = 0;
++			goto out;
++		}
++	}
++
++	ret = 0;
++
++ out:
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static inline int min_int(int a, int b)
++{
++	if (a < b)
++		return a;
++	return b;
++}
++
++
++static int get_key_handler(struct nl_msg *msg, void *arg)
++{
++	struct nlattr *tb[NL80211_ATTR_MAX];
++	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
++
++	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
++		  genlmsg_attrlen(gnlh, 0), NULL);
++
++	/*
++	 * TODO: validate the key index and mac address!
++	 * Otherwise, there's a race condition as soon as
++	 * the kernel starts sending key notifications.
++	 */
++
++	if (tb[NL80211_ATTR_KEY_SEQ])
++		memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
++		       min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
++	return NL_SKIP;
++}
++
++
++static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
++			   int idx, u8 *seq)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	struct nl_cb *cb = NULL;
++	int ret = -1;
++	int err = 0;
++	int finished = 0;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_GET_KEY, 0);
++
++	if (addr)
++		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++	NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++	cb = nl_cb_alloc(NL_CB_CUSTOM);
++	if (!cb)
++		goto out;
++
++	memset(seq, 0, 6);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
++		goto out;
++
++	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_key_handler, seq);
++	nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
++
++	err = nl_recvmsgs(drv->nl_handle, cb);
++
++	if (!finished)
++		err = nl_wait_for_ack(drv->nl_handle);
++
++	if (err < 0)
++		goto out;
++
++	ret = 0;
++
++ out:
++	nl_cb_put(cb);
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
++			      int mode)
++{
++	return -1;
++}
++
++
++static int i802_set_ssid(const char *ifname, void *priv, const u8 *buf,
++			 int len)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
++	iwr.u.essid.flags = 1; /* SSID active */
++	iwr.u.essid.pointer = (caddr_t) buf;
++	iwr.u.essid.length = len;
++
++	if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
++		perror("ioctl[SIOCSIWESSID]");
++		printf("len=%d\n", len);
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_send_mgmt_frame(void *priv, const void *data, size_t len,
++				int flags)
++{
++	struct ieee80211_hdr *hdr = (void*) data;
++	__u8 rtap_hdr[] = {
++		0x00, 0x00, /* radiotap version */
++		0x0e, 0x00, /* radiotap length */
++		0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
++		0x0c,       /* F_WEP | F_FRAG (encrypt/fragment if required) */
++		0x00,       /* padding */
++		0x00, 0x00, /* RX and TX flags to indicate that */
++		0x00, 0x00, /* this is the injected frame directly */
++	};
++	struct i802_driver_data *drv = priv;
++	struct iovec iov[2] = {
++		{
++			.iov_base = &rtap_hdr,
++			.iov_len = sizeof(rtap_hdr),
++		},
++		{
++			.iov_base = (void*)data,
++			.iov_len = len,
++		}
++	};
++	struct msghdr msg = {
++		.msg_name = NULL,
++		.msg_namelen = 0,
++		.msg_iov = iov,
++		.msg_iovlen = 2,
++		.msg_control = NULL,
++		.msg_controllen = 0,
++		.msg_flags = 0,
++	};
++
++	/*
++	 * ugh, guess what, the generic code sets one of the version
++	 * bits to request tx callback
++	 */
++	hdr->frame_control &= ~host_to_le16(BIT(1));
++	return sendmsg(drv->monitor_sock, &msg, flags);
++}
++
++
++/* Set kernel driver on given frequency (MHz) */
++static int i802_set_freq(void *priv, int mode, int freq)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++	iwr.u.freq.m = freq;
++	iwr.u.freq.e = 6;
++
++	if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
++		perror("ioctl[SIOCSIWFREQ]");
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_set_rts(void *priv, int rts)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++	iwr.u.rts.value = rts;
++	iwr.u.rts.fixed = 1;
++
++	if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
++		perror("ioctl[SIOCSIWRTS]");
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_get_rts(void *priv, int *rts)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++
++	if (ioctl(drv->ioctl_sock, SIOCGIWRTS, &iwr) < 0) {
++		perror("ioctl[SIOCGIWRTS]");
++		return -1;
++	}
++
++	*rts = iwr.u.rts.value;
++
++	return 0;
++}
++
++
++static int i802_set_frag(void *priv, int frag)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++	iwr.u.frag.value = frag;
++	iwr.u.frag.fixed = 1;
++
++	if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
++		perror("ioctl[SIOCSIWFRAG]");
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_get_frag(void *priv, int *frag)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++
++	if (ioctl(drv->ioctl_sock, SIOCGIWFRAG, &iwr) < 0) {
++		perror("ioctl[SIOCGIWFRAG]");
++		return -1;
++	}
++
++	*frag = iwr.u.frag.value;
++
++	return 0;
++}
++
++
++static int i802_set_retry(void *priv, int short_retry, int long_retry)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++
++	iwr.u.retry.value = short_retry;
++	iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
++	if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
++		perror("ioctl[SIOCSIWRETRY(short)]");
++		return -1;
++	}
++
++	iwr.u.retry.value = long_retry;
++	iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
++	if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
++		perror("ioctl[SIOCSIWRETRY(long)]");
++		return -1;
++	}
++
++	return 0;
++}
++
++
++static int i802_get_retry(void *priv, int *short_retry, int *long_retry)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
++
++	iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
++	if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
++		perror("ioctl[SIOCGIWFRAG(short)]");
++		return -1;
++	}
++	*short_retry = iwr.u.retry.value;
++
++	iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
++	if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
++		perror("ioctl[SIOCGIWFRAG(long)]");
++		return -1;
++	}
++	*long_retry = iwr.u.retry.value;
++
++	return 0;
++}
++
++
++static int i802_flush(void *priv)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_NEW_STATION, 0);
++
++	/*
++	 * XXX: FIX! this needs to flush all VLANs too
++	 */
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->iface));
++
++	ret = 0;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0) {
++		ret = -1;
++	}
++
++ nla_put_failure:
++	nlmsg_free(msg);
++
++ out:
++	return ret;
++}
++
++
++static int get_sta_handler(struct nl_msg *msg, void *arg)
++{
++	struct nlattr *tb[NL80211_ATTR_MAX + 1];
++	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
++	struct hostap_sta_driver_data *data = arg;
++	struct nlattr *stats[NL80211_STA_STAT_MAX + 1];
++	static struct nla_policy stats_policy[NL80211_STA_STAT_MAX + 1] = {
++		[NL80211_STA_STAT_INACTIVE_TIME] = { .type = NLA_U32 },
++		[NL80211_STA_STAT_RX_BYTES] = { .type = NLA_U32 },
++		[NL80211_STA_STAT_TX_BYTES] = { .type = NLA_U32 },
++	};
++
++	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
++		  genlmsg_attrlen(gnlh, 0), NULL);
++
++	/*
++	 * TODO: validate the interface and mac address!
++	 * Otherwise, there's a race condition as soon as
++	 * the kernel starts sending station notifications.
++	 */
++
++	if (!tb[NL80211_ATTR_STA_STATS]) {
++		wpa_printf(MSG_DEBUG, "sta stats missing!");
++		return NL_SKIP;
++	}
++	if (nla_parse_nested(stats, NL80211_STA_STAT_MAX,
++			     tb[NL80211_ATTR_STA_STATS],
++			     stats_policy)) {
++		wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
++		return NL_SKIP;
++	}
++
++	if (stats[NL80211_STA_STAT_INACTIVE_TIME])
++		data->inactive_msec =
++			nla_get_u32(stats[NL80211_STA_STAT_INACTIVE_TIME]);
++	if (stats[NL80211_STA_STAT_RX_BYTES])
++		data->rx_bytes = nla_get_u32(stats[NL80211_STA_STAT_RX_BYTES]);
++	if (stats[NL80211_STA_STAT_TX_BYTES])
++		data->rx_bytes = nla_get_u32(stats[NL80211_STA_STAT_TX_BYTES]);
++
++	return NL_SKIP;
++}
++
++static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
++			      const u8 *addr)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	struct nl_cb *cb = NULL;
++	int ret = -1;
++	int err = 0;
++	int finished = 0;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_GET_STATION, 0);
++
++	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++	cb = nl_cb_alloc(NL_CB_CUSTOM);
++	if (!cb)
++		goto out;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
++		goto out;
++
++	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_sta_handler, data);
++	nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
++
++	err = nl_recvmsgs(drv->nl_handle, cb);
++
++	if (!finished)
++		err = nl_wait_for_ack(drv->nl_handle);
++
++	if (err < 0)
++		goto out;
++
++	ret = 0;
++
++ out:
++	nl_cb_put(cb);
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++
++}
++
++
++static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
++			   size_t data_len, int encrypt, const u8 *own_addr)
++{
++	struct i802_driver_data *drv = priv;
++	struct ieee80211_hdr *hdr;
++	size_t len;
++	u8 *pos;
++	int res;
++#if 0 /* FIX */
++	int qos = sta->flags & WLAN_STA_WME;
++#else
++	int qos = 0;
++#endif
++
++	len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
++		data_len;
++	hdr = os_zalloc(len);
++	if (hdr == NULL) {
++		printf("malloc() failed for i802_send_data(len=%lu)\n",
++		       (unsigned long) len);
++		return -1;
++	}
++
++	hdr->frame_control =
++		IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
++	hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
++	if (encrypt)
++		hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
++#if 0 /* To be enabled if qos determination is added above */
++	if (qos) {
++		hdr->frame_control |=
++			host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
++	}
++#endif
++
++	memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
++	memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
++	memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
++	pos = (u8 *) (hdr + 1);
++
++#if 0 /* To be enabled if qos determination is added above */
++	if (qos) {
++		/* add an empty QoS header if needed */
++		pos[0] = 0;
++		pos[1] = 0;
++		pos += 2;
++	}
++#endif
++
++	memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
++	pos += sizeof(rfc1042_header);
++	WPA_PUT_BE16(pos, ETH_P_PAE);
++	pos += 2;
++	memcpy(pos, data, data_len);
++
++	res = i802_send_mgmt_frame(drv, (u8 *) hdr, len, 0);
++	free(hdr);
++
++	if (res < 0) {
++		perror("i802_send_eapol: send");
++		printf("i802_send_eapol - packet len: %lu - failed\n",
++		       (unsigned long) len);
++	}
++
++	return res;
++}
++
++
++static int i802_sta_add(const char *ifname, void *priv, const u8 *addr,
++			u16 aid, u16 capability, u8 *supp_rates,
++			size_t supp_rates_len, int flags)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_NEW_STATION, 0);
++
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->iface));
++	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++	NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, aid);
++	NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, supp_rates_len,
++		supp_rates);
++	NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 0);
++
++	ret = nl_send_auto_complete(drv->nl_handle, msg);
++	if (ret < 0)
++		goto nla_put_failure;
++
++	ret = nl_wait_for_ack(drv->nl_handle);
++	/* ignore EEXIST, this happens if a STA associates while associated */
++	if (ret == -EEXIST || ret >= 0)
++		ret = 0;
++
++ nla_put_failure:
++	nlmsg_free(msg);
++
++ out:
++	return ret;
++}
++
++
++static int i802_sta_remove(void *priv, const u8 *addr)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_DEL_STATION, 0);
++
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->iface));
++	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++
++	ret = 0;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0) {
++		ret = -1;
++	}
++
++ nla_put_failure:
++	nlmsg_free(msg);
++
++ out:
++	return ret;
++}
++
++
++static int i802_sta_set_flags(void *priv, const u8 *addr,
++			      int total_flags, int flags_or, int flags_and)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg, *flags = NULL;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	flags = nlmsg_alloc();
++	if (!flags)
++		goto free_msg;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_STATION, 0);
++
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->iface));
++	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++
++	if (total_flags & WLAN_STA_AUTHORIZED || !drv->ieee802_1x_active)
++		NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
++
++	if (total_flags & WLAN_STA_WME)
++		NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
++
++	if (total_flags & WLAN_STA_SHORT_PREAMBLE)
++		NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
++
++	if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
++		goto nla_put_failure;
++
++	ret = 0;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0) {
++		ret = -1;
++	}
++
++ nla_put_failure:
++	nlmsg_free(flags);
++
++ free_msg:
++	nlmsg_free(msg);
++
++ out:
++	return ret;
++}
++
++
++static int i802_set_channel_flag(void *priv, int mode, int chan, int flag,
++				 unsigned char power_level,
++				 unsigned char antenna_max)
++{
++	return -1;
++}
++
++
++static int i802_set_regulatory_domain(void *priv, unsigned int rd)
++{
++	return -1;
++}
++
++
++static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
++				    int cw_min, int cw_max, int burst_time)
++{
++	return -1;
++}
++
++
++static void nl80211_remove_iface(struct i802_driver_data *drv, int ifidx)
++{
++	struct nl_msg *msg;
++
++	/* stop listening for EAPOL on this interface */
++	del_ifidx(drv, ifidx);
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto nla_put_failure;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_DEL_INTERFACE, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0)
++	nla_put_failure:
++		printf("Failed to remove interface.\n");
++	nlmsg_free(msg);
++}
++
++
++static int nl80211_create_iface(struct i802_driver_data *drv,
++				const char *ifname,
++				enum nl80211_iftype iftype,
++				const u8 *addr)
++{
++	struct nl_msg *msg, *flags = NULL;
++	int ifidx;
++	struct ifreq ifreq;
++	struct iwreq iwr;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		return -1;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_NEW_INTERFACE, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->hapd->conf->iface));
++	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
++
++	if (iftype == NL80211_IFTYPE_MONITOR) {
++		int err;
++
++		flags = nlmsg_alloc();
++		if (!flags)
++			goto nla_put_failure;
++
++		NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
++
++		err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
++
++		nlmsg_free(flags);
++
++		if (err)
++			goto nla_put_failure;
++	}
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0) {
++ nla_put_failure:
++		printf("Failed to create interface %s.\n", ifname);
++		nlmsg_free(msg);
++		return -1;
++	}
++
++	nlmsg_free(msg);
++
++	ifidx = if_nametoindex(ifname);
++
++	if (ifidx <= 0)
++		return -1;
++
++	/* start listening for EAPOL on this interface */
++	add_ifidx(drv, ifidx);
++
++	if (addr) {
++		switch (iftype) {
++		case NL80211_IFTYPE_AP:
++			os_strlcpy(ifreq.ifr_name, ifname, IFNAMSIZ);
++			memcpy(ifreq.ifr_hwaddr.sa_data, addr, ETH_ALEN);
++			ifreq.ifr_hwaddr.sa_family = ARPHRD_ETHER;
++
++			if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifreq)) {
++				nl80211_remove_iface(drv, ifidx);
++				return -1;
++			}
++			break;
++		case NL80211_IFTYPE_WDS:
++			memset(&iwr, 0, sizeof(iwr));
++			os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
++			iwr.u.addr.sa_family = ARPHRD_ETHER;
++			memcpy(iwr.u.addr.sa_data, addr, ETH_ALEN);
++			if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr))
++				return -1;
++			break;
++		default:
++			/* nothing */
++			break;
++		}
++	}
++
++	return ifidx;
++}
++
++
++static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
++{
++	int ifidx;
++
++	/*
++	 * The kernel supports that when the low-level driver does,
++	 * but we currently don't because we need per-BSS data that
++	 * currently we can't handle easily.
++	 */
++	return -1;
++
++	ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
++	if (ifidx < 0)
++		return -1;
++	if (hostapd_set_iface_flags(priv, ifname, 1)) {
++		nl80211_remove_iface(priv, ifidx);
++		return -1;
++	}
++	return 0;
++}
++
++
++static int i802_bss_remove(void *priv, const char *ifname)
++{
++	nl80211_remove_iface(priv, if_nametoindex(ifname));
++	return 0;
++}
++
++
++static int i802_set_beacon(const char *iface, void *priv,
++			   u8 *head, size_t head_len,
++			   u8 *tail, size_t tail_len)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	u8 cmd = NL80211_CMD_NEW_BEACON;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	if (drv->beacon_set)
++		cmd = NL80211_CMD_SET_BEACON;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, cmd, 0);
++	NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
++	NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++	NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 1000);
++
++	if (!drv->dtim_period)
++		drv->dtim_period = 2;
++	NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0)
++		goto out;
++
++	ret = 0;
++
++	drv->beacon_set = 1;
++
++ out:
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static int i802_del_beacon(struct i802_driver_data *drv)
++{
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_DEL_BEACON, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0)
++		goto out;
++
++	ret = 0;
++
++ out:
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static int i802_set_ieee8021x(const char *ifname, void *priv, int enabled)
++{
++	struct i802_driver_data *drv = priv;
++
++	/*
++	 * FIXME: This needs to be per interface (BSS)
++	 */
++	drv->ieee802_1x_active = enabled;
++	return 0;
++}
++
++
++static int i802_set_privacy(const char *ifname, void *priv, int enabled)
++{
++	struct i802_driver_data *drv = priv;
++	struct iwreq iwr;
++
++	memset(&iwr, 0, sizeof(iwr));
++
++	os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
++	iwr.u.param.flags = IW_AUTH_PRIVACY_INVOKED;
++	iwr.u.param.value = enabled;
++
++	ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr);
++
++	/* ignore errors, the kernel/driver might not care */
++	return 0;
++}
++
++
++static int i802_set_internal_bridge(void *priv, int value)
++{
++	return -1;
++}
++
++
++static int i802_set_beacon_int(void *priv, int value)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_BEACON, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++	NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0)
++		goto out;
++
++	ret = 0;
++
++ out:
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static int i802_set_dtim_period(const char *iface, void *priv, int value)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_BEACON, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++	drv->dtim_period = value;
++	NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0)
++		goto out;
++
++	ret = 0;
++
++ out:
++ nla_put_failure:
++	nlmsg_free(msg);
++	return ret;
++}
++
++
++static int i802_set_cts_protect(void *priv, int value)
++{
++	return -1;
++}
++
++
++static int i802_set_preamble(void *priv, int value)
++{
++	return -1;
++}
++
++
++static int i802_set_short_slot_time(void *priv, int value)
++{
++	return -1;
++}
++
++
++static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
++{
++	switch (type) {
++	case HOSTAPD_IF_VLAN:
++		return NL80211_IFTYPE_AP_VLAN;
++	case HOSTAPD_IF_WDS:
++		return NL80211_IFTYPE_WDS;
++	}
++	return -1;
++}
++
++
++static int i802_if_add(const char *iface, void *priv,
++		       enum hostapd_driver_if_type type, char *ifname,
++		       const u8 *addr)
++{
++	if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
++		return -1;
++	return 0;
++}
++
++
++static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
++			  char *ifname, const u8 *addr)
++{
++	/* unused at the moment */
++	return -1;
++}
++
++
++static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
++			  const char *ifname, const u8 *addr)
++{
++	nl80211_remove_iface(priv, if_nametoindex(ifname));
++	return 0;
++}
++
++
++struct phy_info_arg {
++	u16 *num_modes;
++	struct hostapd_hw_modes *modes;
++	int error;
++};
++
++static int phy_info_handler(struct nl_msg *msg, void *arg)
++{
++	struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
++	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
++	struct phy_info_arg *phy_info = arg;
++
++	struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
++
++	struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
++	static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
++		[NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
++		[NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
++		[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
++		[NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
++		[NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
++	};
++
++	struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
++	static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
++		[NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
++		[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
++	};
++
++	struct nlattr *nl_band;
++	struct nlattr *nl_freq;
++	struct nlattr *nl_rate;
++	int rem_band, rem_freq, rem_rate;
++	struct hostapd_hw_modes *mode;
++	int idx, mode_is_set;
++
++	nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
++		  genlmsg_attrlen(gnlh, 0), NULL);
++
++	if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
++		return NL_SKIP;
++
++	nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
++		mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
++		if (!mode)
++			return NL_SKIP;
++		phy_info->modes = mode;
++
++		mode_is_set = 0;
++
++		mode = &phy_info->modes[*(phy_info->num_modes)];
++		memset(mode, 0, sizeof(*mode));
++		*(phy_info->num_modes) += 1;
++
++		nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
++			  nla_len(nl_band), NULL);
++
++		nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
++			nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
++				  nla_len(nl_freq), freq_policy);
++			if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
++				continue;
++			mode->num_channels++;
++		}
++
++		mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
++		if (!mode->channels)
++			return NL_SKIP;
++
++		idx = 0;
++
++		nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
++			nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
++				  nla_len(nl_freq), freq_policy);
++			if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
++				continue;
++
++			mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
++			mode->channels[idx].flag |= HOSTAPD_CHAN_W_SCAN |
++						    HOSTAPD_CHAN_W_ACTIVE_SCAN |
++						    HOSTAPD_CHAN_W_IBSS;
++
++			if (!mode_is_set) {
++				/* crude heuristic */
++				if (mode->channels[idx].freq < 4000)
++					mode->mode = HOSTAPD_MODE_IEEE80211B;
++				else
++					mode->mode = HOSTAPD_MODE_IEEE80211A;
++				mode_is_set = 1;
++			}
++
++			/* crude heuristic */
++			if (mode->channels[idx].freq < 4000)
++				if (mode->channels[idx].freq == 2848)
++					mode->channels[idx].chan = 14;
++				else
++					mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
++			else
++				mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
++
++			if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
++				mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_SCAN;
++			if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
++				mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_ACTIVE_SCAN;
++			if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
++				mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_IBSS;
++			idx++;
++		}
++
++		nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
++			nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
++				  nla_len(nl_rate), rate_policy);
++			if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
++				continue;
++			mode->num_rates++;
++		}
++
++		mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
++		if (!mode->rates)
++			return NL_SKIP;
++
++		idx = 0;
++
++		nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
++			nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
++				  nla_len(nl_rate), rate_policy);
++			if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
++				continue;
++			mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
++
++			/* crude heuristic */
++			if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
++			    mode->rates[idx].rate > 200)
++				mode->mode = HOSTAPD_MODE_IEEE80211G;
++
++			if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
++				mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
++
++			idx++;
++		}
++	}
++
++	phy_info->error = 0;
++
++	return NL_SKIP;
++}
++
++static struct hostapd_hw_modes *i802_get_hw_feature_data(void *priv,
++							 u16 *num_modes,
++							 u16 *flags)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int err = -1;
++	struct nl_cb *cb = NULL;
++	int finished;
++	struct phy_info_arg result = {
++		.num_modes = num_modes,
++		.modes = NULL,
++		.error = 1,
++	};
++
++	*num_modes = 0;
++	*flags = 0;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		return NULL;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_GET_WIPHY, 0);
++
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++	cb = nl_cb_alloc(NL_CB_CUSTOM);
++	if (!cb)
++		goto out;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
++		goto out;
++
++	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, phy_info_handler, &result);
++	nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
++
++	err = nl_recvmsgs(drv->nl_handle, cb);
++
++	if (!finished)
++		err = nl_wait_for_ack(drv->nl_handle);
++
++	if (err < 0 || result.error) {
++		hostapd_free_hw_features(result.modes, *num_modes);
++		result.modes = NULL;
++	}
++
++ out:
++	nl_cb_put(cb);
++ nla_put_failure:
++	if (err)
++		fprintf(stderr, "failed to get information: %d\n", err);
++	nlmsg_free(msg);
++	return result.modes;
++}
++
++
++static int i802_set_sta_vlan(void *priv, const u8 *addr,
++			     const char *ifname, int vlan_id)
++{
++	struct i802_driver_data *drv = priv;
++	struct nl_msg *msg;
++	int ret = -1;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		goto out;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_STATION, 0);
++
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(drv->iface));
++	NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(ifname));
++
++	ret = 0;
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    (errno = nl_wait_for_ack(drv->nl_handle) < 0)) {
++		ret = -1;
++	}
++
++ nla_put_failure:
++	nlmsg_free(msg);
++
++ out:
++	return ret;
++}
++
++
++static void handle_unknown_sta(struct hostapd_data *hapd, u8 *ta)
++{
++	struct sta_info *sta;
++
++	sta = ap_get_sta(hapd, ta);
++	if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
++		printf("Data/PS-poll frame from not associated STA "
++		       MACSTR "\n", MAC2STR(ta));
++		if (sta && (sta->flags & WLAN_STA_AUTH))
++			hostapd_sta_disassoc(
++				hapd, ta,
++				WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
++		else
++			hostapd_sta_deauth(
++				hapd, ta,
++				WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
++	}
++}
++
++
++static void handle_tx_callback(struct hostapd_data *hapd, u8 *buf, size_t len,
++			       int ok)
++{
++	struct ieee80211_hdr *hdr;
++	u16 fc, type, stype;
++	struct sta_info *sta;
++
++	hdr = (struct ieee80211_hdr *) buf;
++	fc = le_to_host16(hdr->frame_control);
++
++	type = WLAN_FC_GET_TYPE(fc);
++	stype = WLAN_FC_GET_STYPE(fc);
++
++	switch (type) {
++	case WLAN_FC_TYPE_MGMT:
++		wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
++			   ok ? "ACK" : "fail");
++		ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
++		break;
++	case WLAN_FC_TYPE_CTRL:
++		wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
++			   ok ? "ACK" : "fail");
++		break;
++	case WLAN_FC_TYPE_DATA:
++		wpa_printf(MSG_DEBUG, "DATA (TX callback) %s",
++			   ok ? "ACK" : "fail");
++		sta = ap_get_sta(hapd, hdr->addr1);
++		if (sta && sta->flags & WLAN_STA_PENDING_POLL) {
++			wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending "
++				   "activity poll", MAC2STR(sta->addr),
++				   ok ? "ACKed" : "did not ACK");
++			if (ok)
++				sta->flags &= ~WLAN_STA_PENDING_POLL;
++		}
++		if (sta)
++			ieee802_1x_tx_status(hapd, sta, buf, len, ok);
++		break;
++	default:
++		printf("unknown TX callback frame type %d\n", type);
++		break;
++	}
++}
++
++
++static void handle_frame(struct hostapd_iface *iface, u8 *buf, size_t len,
++			 struct hostapd_frame_info *hfi,
++			 enum ieee80211_msg_type msg_type)
++{
++	struct ieee80211_hdr *hdr;
++	u16 fc, type, stype;
++	size_t data_len = len;
++	struct hostapd_data *hapd = NULL;
++	int broadcast_bssid = 0;
++	size_t i;
++	u8 *bssid;
++
++	/*
++	 * PS-Poll frames are 16 bytes. All other frames are
++	 * 24 bytes or longer.
++	 */
++	if (len < 16)
++		return;
++
++	hdr = (struct ieee80211_hdr *) buf;
++	fc = le_to_host16(hdr->frame_control);
++
++	type = WLAN_FC_GET_TYPE(fc);
++	stype = WLAN_FC_GET_STYPE(fc);
++
++	switch (type) {
++	case WLAN_FC_TYPE_DATA:
++		if (len < 24)
++			return;
++		switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
++		case WLAN_FC_TODS:
++			bssid = hdr->addr1;
++			break;
++		default:
++			/* discard */
++			return;
++		}
++		break;
++	case WLAN_FC_TYPE_CTRL:
++		/* discard non-ps-poll frames */
++		if (stype != WLAN_FC_STYPE_PSPOLL)
++			return;
++		bssid = hdr->addr1;
++		break;
++	case WLAN_FC_TYPE_MGMT:
++		bssid = hdr->addr3;
++		break;
++	default:
++		/* discard */
++		return;
++	}
++
++	/* find interface frame belongs to */
++	for (i = 0; i < iface->num_bss; i++) {
++		if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
++			hapd = iface->bss[i];
++			break;
++		}
++	}
++
++	if (hapd == NULL) {
++		hapd = iface->bss[0];
++
++		if (bssid[0] != 0xff || bssid[1] != 0xff ||
++		    bssid[2] != 0xff || bssid[3] != 0xff ||
++		    bssid[4] != 0xff || bssid[5] != 0xff) {
++			/*
++			 * Unknown BSSID - drop frame if this is not from
++			 * passive scanning or a beacon (at least ProbeReq
++			 * frames to other APs may be allowed through RX
++			 * filtering in the wlan hw/driver)
++			 */
++			if ((type != WLAN_FC_TYPE_MGMT ||
++			     stype != WLAN_FC_STYPE_BEACON))
++				return;
++		} else
++			broadcast_bssid = 1;
++	}
++
++	switch (msg_type) {
++	case ieee80211_msg_normal:
++		/* continue processing */
++		break;
++	case ieee80211_msg_tx_callback_ack:
++		handle_tx_callback(hapd, buf, data_len, 1);
++		return;
++	case ieee80211_msg_tx_callback_fail:
++		handle_tx_callback(hapd, buf, data_len, 0);
++		return;
++	}
++
++	switch (type) {
++	case WLAN_FC_TYPE_MGMT:
++		if (stype != WLAN_FC_STYPE_BEACON &&
++		    stype != WLAN_FC_STYPE_PROBE_REQ)
++			wpa_printf(MSG_MSGDUMP, "MGMT");
++		if (broadcast_bssid) {
++			for (i = 0; i < iface->num_bss; i++)
++				ieee802_11_mgmt(iface->bss[i], buf, data_len,
++						stype, hfi);
++		} else
++			ieee802_11_mgmt(hapd, buf, data_len, stype, hfi);
++		break;
++	case WLAN_FC_TYPE_CTRL:
++		/* can only get here with PS-Poll frames */
++		wpa_printf(MSG_DEBUG, "CTRL");
++		handle_unknown_sta(hapd, hdr->addr2);
++		break;
++	case WLAN_FC_TYPE_DATA:
++		wpa_printf(MSG_DEBUG, "DATA");
++		handle_unknown_sta(hapd, hdr->addr2);
++		break;
++	}
++}
++
++
++static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
++{
++	struct i802_driver_data *drv = eloop_ctx;
++	struct hostapd_data *hapd = drv->hapd;
++	struct sockaddr_ll lladdr;
++	unsigned char buf[3000];
++	int len;
++	socklen_t fromlen = sizeof(lladdr);
++
++	len = recvfrom(sock, buf, sizeof(buf), 0,
++		       (struct sockaddr *)&lladdr, &fromlen);
++	if (len < 0) {
++		perror("recv");
++		return;
++	}
++
++	if (have_ifidx(drv, lladdr.sll_ifindex))
++		ieee802_1x_receive(hapd, lladdr.sll_addr, buf, len);
++}
++
++
++static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
++{
++	struct i802_driver_data *drv = eloop_ctx;
++	int len;
++	unsigned char buf[3000];
++	struct hostapd_data *hapd = drv->hapd;
++	struct ieee80211_radiotap_iterator iter;
++	int ret;
++	struct hostapd_frame_info hfi;
++	int injected = 0, failed = 0, msg_type, rxflags = 0;
++
++	len = recv(sock, buf, sizeof(buf), 0);
++	if (len < 0) {
++		perror("recv");
++		return;
++	}
++
++	if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
++		printf("received invalid radiotap frame\n");
++		return;
++	}
++
++	memset(&hfi, 0, sizeof(hfi));
++
++	while (1) {
++		ret = ieee80211_radiotap_iterator_next(&iter);
++		if (ret == -ENOENT)
++			break;
++		if (ret) {
++			printf("received invalid radiotap frame (%d)\n", ret);
++			return;
++		}
++		switch (iter.this_arg_index) {
++		case IEEE80211_RADIOTAP_FLAGS:
++			if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
++				len -= 4;
++			break;
++		case IEEE80211_RADIOTAP_RX_FLAGS:
++			rxflags = 1;
++			break;
++		case IEEE80211_RADIOTAP_TX_FLAGS:
++			injected = 1;
++			failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
++					IEEE80211_RADIOTAP_F_TX_FAIL;
++			break;
++		case IEEE80211_RADIOTAP_DATA_RETRIES:
++			break;
++		case IEEE80211_RADIOTAP_CHANNEL:
++			/* TODO convert from freq/flags to channel number
++			hfi.channel = XXX;
++			hfi.phytype = XXX;
++			 */
++			break;
++		case IEEE80211_RADIOTAP_RATE:
++			hfi.datarate = *iter.this_arg * 5;
++			break;
++		case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
++			hfi.ssi_signal = *iter.this_arg;
++			break;
++		}
++	}
++
++	if (rxflags && injected)
++		return;
++
++	if (!injected)
++		msg_type = ieee80211_msg_normal;
++	else if (failed)
++		msg_type = ieee80211_msg_tx_callback_fail;
++	else
++		msg_type = ieee80211_msg_tx_callback_ack;
++
++	handle_frame(hapd->iface, buf + iter.max_length,
++		     len - iter.max_length, &hfi, msg_type);
++}
++
++
++static int nl80211_create_monitor_interface(struct i802_driver_data *drv)
++{
++	char buf[IFNAMSIZ];
++	struct sockaddr_ll ll;
++	int optval;
++	socklen_t optlen;
++
++	snprintf(buf, IFNAMSIZ, "mon.%s", drv->iface);
++	buf[IFNAMSIZ - 1] = '\0';
++
++	drv->monitor_ifidx =
++		nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
++
++	if (drv->monitor_ifidx < 0)
++		return -1;
++
++	if (hostapd_set_iface_flags(drv, buf, 1))
++		goto error;
++
++	memset(&ll, 0, sizeof(ll));
++	ll.sll_family = AF_PACKET;
++	ll.sll_ifindex = drv->monitor_ifidx;
++	drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
++	if (drv->monitor_sock < 0) {
++		perror("socket[PF_PACKET,SOCK_RAW]");
++		goto error;
++	}
++
++	if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
++		 sizeof(ll)) < 0) {
++		perror("monitor socket bind");
++		goto error;
++	}
++
++	optlen = sizeof(optval);
++	optval = 20;
++	if (setsockopt
++	    (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
++		perror("Failed to set socket priority");
++		goto error;
++	}
++
++	if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
++				     drv, NULL)) {
++		printf("Could not register monitor read socket\n");
++		goto error;
++	}
++
++	return 0;
++ error:
++	nl80211_remove_iface(drv, drv->monitor_ifidx);
++	return -1;
++}
++
++
++static int nl80211_set_master_mode(struct i802_driver_data *drv,
++				   const char *ifname)
++{
++	struct nl_msg *msg;
++
++	msg = nlmsg_alloc();
++	if (!msg)
++		return -1;
++
++	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++		    0, NL80211_CMD_SET_INTERFACE, 0);
++	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++		    if_nametoindex(ifname));
++	NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
++
++	if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++	    nl_wait_for_ack(drv->nl_handle) < 0) {
++ nla_put_failure:
++		wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
++			   "mode.", ifname);
++		nlmsg_free(msg);
++		return -1;
++	}
++
++	nlmsg_free(msg);
++
++	return 0;
++}
++  
++
++static int i802_init_sockets(struct i802_driver_data *drv, const u8 *bssid)
++{
++	struct ifreq ifr;
++	struct sockaddr_ll addr;
++
++	drv->ioctl_sock = -1;
++
++	drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
++	if (drv->ioctl_sock < 0) {
++		perror("socket[PF_INET,SOCK_DGRAM]");
++		return -1;
++	}
++
++	/* start listening for EAPOL on the default AP interface */
++	add_ifidx(drv, if_nametoindex(drv->iface));
++
++	if (hostapd_set_iface_flags(drv, drv->iface, 0))
++		return -1;
++
++	if (bssid) {
++		os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
++		memcpy(ifr.ifr_hwaddr.sa_data, bssid, ETH_ALEN);
++		ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
++
++		if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
++			perror("ioctl(SIOCSIFHWADDR)");
++			return -1;
++		}
++	}
++
++	/*
++	 * initialise generic netlink and nl80211
++	 */
++	drv->nl_handle = nl_handle_alloc();
++	if (!drv->nl_handle) {
++		printf("Failed to allocate netlink handle.\n");
++		return -1;
++	}
++
++	if (genl_connect(drv->nl_handle)) {
++		printf("Failed to connect to generic netlink.\n");
++		return -1;
++	}
++
++	drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
++	if (!drv->nl_cache) {
++		printf("Failed to allocate generic netlink cache.\n");
++		return -1;
++	}
++
++	drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
++	if (!drv->nl80211) {
++		printf("nl80211 not found.\n");
++		return -1;
++	}
++
++	/* Initialise a monitor interface */
++	if (nl80211_create_monitor_interface(drv))
++		return -1;
++
++	if (nl80211_set_master_mode(drv, drv->iface))
++		return -1;
++
++	if (hostapd_set_iface_flags(drv, drv->iface, 1))
++		return -1;
++
++	memset(&addr, 0, sizeof(addr));
++	addr.sll_family = AF_PACKET;
++	addr.sll_ifindex = ifr.ifr_ifindex;
++	wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
++		   addr.sll_ifindex);
++
++	drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
++	if (drv->eapol_sock < 0) {
++		perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
++		return -1;
++	}
++
++	if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
++	{
++		printf("Could not register read socket for eapol\n");
++		return -1;
++	}
++
++        memset(&ifr, 0, sizeof(ifr));
++        os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
++        if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
++		perror("ioctl(SIOCGIFHWADDR)");
++		return -1;
++        }
++
++	if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
++		printf("Invalid HW-addr family 0x%04x\n",
++		       ifr.ifr_hwaddr.sa_family);
++		return -1;
++	}
++	memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
++
++	return 0;
++}
++
++
++static int i802_get_inact_sec(void *priv, const u8 *addr)
++{
++	struct hostap_sta_driver_data data;
++	int ret;
++
++	data.inactive_msec = (unsigned long) -1;
++	ret = i802_read_sta_data(priv, &data, addr);
++	if (ret || data.inactive_msec == (unsigned long) -1)
++		return -1;
++	return data.inactive_msec / 1000;
++}
++
++
++static int i802_sta_clear_stats(void *priv, const u8 *addr)
++{
++#if 0
++	/* TODO */
++#endif
++	return 0;
++}
++
++
++static void
++hostapd_wireless_event_wireless_custom(struct i802_driver_data *drv,
++				       char *custom)
++{
++	wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
++
++	if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
++		char *pos;
++		u8 addr[ETH_ALEN];
++		pos = strstr(custom, "addr=");
++		if (pos == NULL) {
++			wpa_printf(MSG_DEBUG,
++				   "MLME-MICHAELMICFAILURE.indication "
++				   "without sender address ignored");
++			return;
++		}
++		pos += 5;
++		if (hwaddr_aton(pos, addr) == 0) {
++			ieee80211_michael_mic_failure(drv->hapd, addr, 1);
++		} else {
++			wpa_printf(MSG_DEBUG,
++				   "MLME-MICHAELMICFAILURE.indication "
++				   "with invalid MAC address");
++		}
++	}
++}
++
++
++static void hostapd_wireless_event_wireless(struct i802_driver_data *drv,
++					    char *data, int len)
++{
++	struct iw_event iwe_buf, *iwe = &iwe_buf;
++	char *pos, *end, *custom, *buf;
++
++	pos = data;
++	end = data + len;
++
++	while (pos + IW_EV_LCP_LEN <= end) {
++		/* Event data may be unaligned, so make a local, aligned copy
++		 * before processing. */
++		memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
++		wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
++			   iwe->cmd, iwe->len);
++		if (iwe->len <= IW_EV_LCP_LEN)
++			return;
++
++		custom = pos + IW_EV_POINT_LEN;
++		if (drv->we_version > 18 &&
++		    (iwe->cmd == IWEVMICHAELMICFAILURE ||
++		     iwe->cmd == IWEVCUSTOM)) {
++			/* WE-19 removed the pointer from struct iw_point */
++			char *dpos = (char *) &iwe_buf.u.data.length;
++			int dlen = dpos - (char *) &iwe_buf;
++			memcpy(dpos, pos + IW_EV_LCP_LEN,
++			       sizeof(struct iw_event) - dlen);
++		} else {
++			memcpy(&iwe_buf, pos, sizeof(struct iw_event));
++			custom += IW_EV_POINT_OFF;
++		}
++
++		switch (iwe->cmd) {
++		case IWEVCUSTOM:
++			if (custom + iwe->u.data.length > end)
++				return;
++			buf = malloc(iwe->u.data.length + 1);
++			if (buf == NULL)
++				return;
++			memcpy(buf, custom, iwe->u.data.length);
++			buf[iwe->u.data.length] = '\0';
++			hostapd_wireless_event_wireless_custom(drv, buf);
++			free(buf);
++			break;
++		}
++
++		pos += iwe->len;
++	}
++}
++
++
++static void hostapd_wireless_event_rtm_newlink(struct i802_driver_data *drv,
++					       struct nlmsghdr *h, int len)
++{
++	struct ifinfomsg *ifi;
++	int attrlen, nlmsg_len, rta_len;
++	struct rtattr *attr;
++
++	if (len < (int) sizeof(*ifi))
++		return;
++
++	ifi = NLMSG_DATA(h);
++
++	/* TODO: use ifi->ifi_index to filter out wireless events from other
++	 * interfaces */
++
++	nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
++
++	attrlen = h->nlmsg_len - nlmsg_len;
++	if (attrlen < 0)
++		return;
++
++	attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
++
++	rta_len = RTA_ALIGN(sizeof(struct rtattr));
++	while (RTA_OK(attr, attrlen)) {
++		if (attr->rta_type == IFLA_WIRELESS) {
++			hostapd_wireless_event_wireless(
++				drv, ((char *) attr) + rta_len,
++				attr->rta_len - rta_len);
++		}
++		attr = RTA_NEXT(attr, attrlen);
++	}
++}
++
++
++static void hostapd_wireless_event_receive(int sock, void *eloop_ctx,
++					   void *sock_ctx)
++{
++	char buf[256];
++	int left;
++	struct sockaddr_nl from;
++	socklen_t fromlen;
++	struct nlmsghdr *h;
++	struct i802_driver_data *drv = eloop_ctx;
++
++	fromlen = sizeof(from);
++	left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
++			(struct sockaddr *) &from, &fromlen);
++	if (left < 0) {
++		if (errno != EINTR && errno != EAGAIN)
++			perror("recvfrom(netlink)");
++		return;
++	}
++
++	h = (struct nlmsghdr *) buf;
++	while (left >= (int) sizeof(*h)) {
++		int len, plen;
++
++		len = h->nlmsg_len;
++		plen = len - sizeof(*h);
++		if (len > left || plen < 0) {
++			printf("Malformed netlink message: "
++			       "len=%d left=%d plen=%d\n",
++			       len, left, plen);
++			break;
++		}
++
++		switch (h->nlmsg_type) {
++		case RTM_NEWLINK:
++			hostapd_wireless_event_rtm_newlink(drv, h, plen);
++			break;
++		}
++
++		len = NLMSG_ALIGN(len);
++		left -= len;
++		h = (struct nlmsghdr *) ((char *) h + len);
++	}
++
++	if (left > 0) {
++		printf("%d extra bytes in the end of netlink message\n", left);
++	}
++}
++
++
++static int hostap_get_we_version(struct i802_driver_data *drv)
++{
++	struct iw_range *range;
++	struct iwreq iwr;
++	int minlen;
++	size_t buflen;
++
++	drv->we_version = 0;
++
++	/*
++	 * Use larger buffer than struct iw_range in order to allow the
++	 * structure to grow in the future.
++	 */
++	buflen = sizeof(struct iw_range) + 500;
++	range = os_zalloc(buflen);
++	if (range == NULL)
++		return -1;
++
++	memset(&iwr, 0, sizeof(iwr));
++	os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
++	iwr.u.data.pointer = (caddr_t) range;
++	iwr.u.data.length = buflen;
++
++	minlen = ((char *) &range->enc_capa) - (char *) range +
++		sizeof(range->enc_capa);
++
++	if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
++		perror("ioctl[SIOCGIWRANGE]");
++		free(range);
++		return -1;
++	} else if (iwr.u.data.length >= minlen &&
++		   range->we_version_compiled >= 18) {
++		wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
++			   "WE(source)=%d enc_capa=0x%x",
++			   range->we_version_compiled,
++			   range->we_version_source,
++			   range->enc_capa);
++		drv->we_version = range->we_version_compiled;
++	}
++
++	free(range);
++	return 0;
++}
++
++
++static int i802_wireless_event_init(void *priv)
++{
++	struct i802_driver_data *drv = priv;
++	int s;
++	struct sockaddr_nl local;
++
++	hostap_get_we_version(drv);
++
++	drv->wext_sock = -1;
++
++	s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
++	if (s < 0) {
++		perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
++		return -1;
++	}
++
++	memset(&local, 0, sizeof(local));
++	local.nl_family = AF_NETLINK;
++	local.nl_groups = RTMGRP_LINK;
++	if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
++		perror("bind(netlink)");
++		close(s);
++		return -1;
++	}
++
++	eloop_register_read_sock(s, hostapd_wireless_event_receive, drv,
++				 NULL);
++	drv->wext_sock = s;
++
++	return 0;
++}
++
++
++static void i802_wireless_event_deinit(void *priv)
++{
++	struct i802_driver_data *drv = priv;
++	if (drv->wext_sock < 0)
++		return;
++	eloop_unregister_read_sock(drv->wext_sock);
++	close(drv->wext_sock);
++}
++
++
++static int i802_sta_deauth(void *priv, const u8 *addr, int reason)
++{
++	struct i802_driver_data *drv = priv;
++	struct ieee80211_mgmt mgmt;
++
++	memset(&mgmt, 0, sizeof(mgmt));
++	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
++					  WLAN_FC_STYPE_DEAUTH);
++	memcpy(mgmt.da, addr, ETH_ALEN);
++	memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
++	memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
++	mgmt.u.deauth.reason_code = host_to_le16(reason);
++	return i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
++				      sizeof(mgmt.u.deauth), 0);
++}
++
++
++static int i802_sta_disassoc(void *priv, const u8 *addr, int reason)
++{
++	struct i802_driver_data *drv = priv;
++	struct ieee80211_mgmt mgmt;
++
++	memset(&mgmt, 0, sizeof(mgmt));
++	mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
++					  WLAN_FC_STYPE_DISASSOC);
++	memcpy(mgmt.da, addr, ETH_ALEN);
++	memcpy(mgmt.sa, drv->hapd->own_addr, ETH_ALEN);
++	memcpy(mgmt.bssid, drv->hapd->own_addr, ETH_ALEN);
++	mgmt.u.disassoc.reason_code = host_to_le16(reason);
++	return  i802_send_mgmt_frame(drv, &mgmt, IEEE80211_HDRLEN +
++				       sizeof(mgmt.u.disassoc), 0);
++}
++
++
++static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
++{
++	struct i802_driver_data *drv;
++
++	drv = os_zalloc(sizeof(struct i802_driver_data));
++	if (drv == NULL) {
++		printf("Could not allocate memory for i802 driver data\n");
++		return NULL;
++	}
++
++	drv->hapd = hapd;
++	memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
++
++	drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
++	drv->if_indices = drv->default_if_indices;
++
++	if (i802_init_sockets(drv, bssid))
++		goto failed;
++
++	return drv;
++
++failed:
++	free(drv);
++	return NULL;
++}
++
++
++static void *i802_init(struct hostapd_data *hapd)
++{
++	return i802_init_bssid(hapd, NULL);
++}
++
++
++static void i802_deinit(void *priv)
++{
++	struct i802_driver_data *drv = priv;
++
++	i802_del_beacon(drv);
++
++	/* remove monitor interface */
++	nl80211_remove_iface(drv, drv->monitor_ifidx);
++
++	(void) hostapd_set_iface_flags(drv, drv->iface, 0);
++
++	if (drv->monitor_sock >= 0) {
++		eloop_unregister_read_sock(drv->monitor_sock);
++		close(drv->monitor_sock);
++	}
++	if (drv->ioctl_sock >= 0)
++		close(drv->ioctl_sock);
++	if (drv->eapol_sock >= 0) {
++		eloop_unregister_read_sock(drv->eapol_sock);
++		close(drv->eapol_sock);
++	}
++
++	genl_family_put(drv->nl80211);
++	nl_cache_free(drv->nl_cache);
++	nl_handle_destroy(drv->nl_handle);
++
++	if (drv->if_indices != drv->default_if_indices)
++		free(drv->if_indices);
++
++	free(drv);
++}
++
++
++const struct wpa_driver_ops wpa_driver_nl80211_ops = {
++	.name = "nl80211",
++	.init = i802_init,
++//	.init_bssid = i802_init_bssid,
++	.deinit = i802_deinit,
++	.wireless_event_init = i802_wireless_event_init,
++	.wireless_event_deinit = i802_wireless_event_deinit,
++	.set_ieee8021x = i802_set_ieee8021x,
++	.set_privacy = i802_set_privacy,
++	.set_encryption = i802_set_encryption,
++	.get_seqnum = i802_get_seqnum,
++	.flush = i802_flush,
++	.read_sta_data = i802_read_sta_data,
++	.send_eapol = i802_send_eapol,
++	.sta_set_flags = i802_sta_set_flags,
++	.sta_deauth = i802_sta_deauth,
++	.sta_disassoc = i802_sta_disassoc,
++	.sta_remove = i802_sta_remove,
++	.set_ssid = i802_set_ssid,
++	.send_mgmt_frame = i802_send_mgmt_frame,
++	.sta_add = i802_sta_add,
++	.get_inact_sec = i802_get_inact_sec,
++	.sta_clear_stats = i802_sta_clear_stats,
++	.set_freq = i802_set_freq,
++	.set_rts = i802_set_rts,
++	.get_rts = i802_get_rts,
++	.set_frag = i802_set_frag,
++	.get_frag = i802_get_frag,
++	.set_retry = i802_set_retry,
++	.get_retry = i802_get_retry,
++	.set_rate_sets = i802_set_rate_sets,
++	.set_channel_flag = i802_set_channel_flag,
++	.set_regulatory_domain = i802_set_regulatory_domain,
++	.set_beacon = i802_set_beacon,
++	.set_internal_bridge = i802_set_internal_bridge,
++	.set_beacon_int = i802_set_beacon_int,
++	.set_dtim_period = i802_set_dtim_period,
++	.set_cts_protect = i802_set_cts_protect,
++	.set_preamble = i802_set_preamble,
++	.set_short_slot_time = i802_set_short_slot_time,
++	.set_tx_queue_params = i802_set_tx_queue_params,
++	.bss_add = i802_bss_add,
++	.bss_remove = i802_bss_remove,
++	.if_add = i802_if_add,
++	.if_update = i802_if_update,
++	.if_remove = i802_if_remove,
++	.get_hw_feature_data = i802_get_hw_feature_data,
++	.set_sta_vlan = i802_set_sta_vlan,
++};
+diff -urN hostapd.orig/radiotap.c hostapd/radiotap.c
+--- a/hostapd/radiotap.c	1970-01-01 01:00:00.000000000 +0100
++++ b/hostapd/radiotap.c	2008-02-15 23:05:17.000000000 +0100
+@@ -0,0 +1,287 @@
++/*
++ * Radiotap parser
++ *
++ * Copyright 2007		Andy Green <andy@warmcat.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.
++ *
++ *
++ * Modified for userspace by Johannes Berg <johannes@sipsolutions.net>
++ * I only modified some things on top to ease syncing should bugs be found.
++ */
++
++#include "includes.h"
++
++#include "common.h"
++#include "radiotap_iter.h"
++
++#define le16_to_cpu		le_to_host16
++#define le32_to_cpu		le_to_host32
++#define __le32			uint32_t
++#define ulong			unsigned long
++#define unlikely(cond)		(cond)
++#define get_unaligned(p)					\
++({								\
++	struct packed_dummy_struct {				\
++		typeof(*(p)) __val;				\
++	} __attribute__((packed)) *__ptr = (void *) (p);	\
++								\
++	__ptr->__val;						\
++})
++
++/* function prototypes and related defs are in radiotap_iter.h */
++
++/**
++ * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
++ * @iterator: radiotap_iterator to initialize
++ * @radiotap_header: radiotap header to parse
++ * @max_length: total length we can parse into (eg, whole packet length)
++ *
++ * Returns: 0 or a negative error code if there is a problem.
++ *
++ * This function initializes an opaque iterator struct which can then
++ * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap
++ * argument which is present in the header.  It knows about extended
++ * present headers and handles them.
++ *
++ * How to use:
++ * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
++ * struct ieee80211_radiotap_iterator (no need to init the struct beforehand)
++ * checking for a good 0 return code.  Then loop calling
++ * __ieee80211_radiotap_iterator_next()... it returns either 0,
++ * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
++ * The iterator's @this_arg member points to the start of the argument
++ * associated with the current argument index that is present, which can be
++ * found in the iterator's @this_arg_index member.  This arg index corresponds
++ * to the IEEE80211_RADIOTAP_... defines.
++ *
++ * Radiotap header length:
++ * You can find the CPU-endian total radiotap header length in
++ * iterator->max_length after executing ieee80211_radiotap_iterator_init()
++ * successfully.
++ *
++ * Alignment Gotcha:
++ * You must take care when dereferencing iterator.this_arg
++ * for multibyte types... the pointer is not aligned.  Use
++ * get_unaligned((type *)iterator.this_arg) to dereference
++ * iterator.this_arg for type "type" safely on all arches.
++ *
++ * Example code:
++ * See Documentation/networking/radiotap-headers.txt
++ */
++
++int ieee80211_radiotap_iterator_init(
++    struct ieee80211_radiotap_iterator *iterator,
++    struct ieee80211_radiotap_header *radiotap_header,
++    int max_length)
++{
++	/* Linux only supports version 0 radiotap format */
++	if (radiotap_header->it_version)
++		return -EINVAL;
++
++	/* sanity check for allowed length and radiotap length field */
++	if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len)))
++		return -EINVAL;
++
++	iterator->rtheader = radiotap_header;
++	iterator->max_length = le16_to_cpu(get_unaligned(
++						&radiotap_header->it_len));
++	iterator->arg_index = 0;
++	iterator->bitmap_shifter = le32_to_cpu(get_unaligned(
++						&radiotap_header->it_present));
++	iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header);
++	iterator->this_arg = NULL;
++
++	/* find payload start allowing for extended bitmap(s) */
++
++	if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) {
++		while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) &
++				   (1<<IEEE80211_RADIOTAP_EXT)) {
++			iterator->arg += sizeof(u32);
++
++			/*
++			 * check for insanity where the present bitmaps
++			 * keep claiming to extend up to or even beyond the
++			 * stated radiotap header length
++			 */
++
++			if (((ulong)iterator->arg - (ulong)iterator->rtheader)
++			    > (ulong)iterator->max_length)
++				return -EINVAL;
++		}
++
++		iterator->arg += sizeof(u32);
++
++		/*
++		 * no need to check again for blowing past stated radiotap
++		 * header length, because ieee80211_radiotap_iterator_next
++		 * checks it before it is dereferenced
++		 */
++	}
++
++	/* we are all initialized happily */
++
++	return 0;
++}
++
++
++/**
++ * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
++ * @iterator: radiotap_iterator to move to next arg (if any)
++ *
++ * Returns: 0 if there is an argument to handle,
++ * -ENOENT if there are no more args or -EINVAL
++ * if there is something else wrong.
++ *
++ * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*)
++ * in @this_arg_index and sets @this_arg to point to the
++ * payload for the field.  It takes care of alignment handling and extended
++ * present fields.  @this_arg can be changed by the caller (eg,
++ * incremented to move inside a compound argument like
++ * IEEE80211_RADIOTAP_CHANNEL).  The args pointed to are in
++ * little-endian format whatever the endianess of your CPU.
++ *
++ * Alignment Gotcha:
++ * You must take care when dereferencing iterator.this_arg
++ * for multibyte types... the pointer is not aligned.  Use
++ * get_unaligned((type *)iterator.this_arg) to dereference
++ * iterator.this_arg for type "type" safely on all arches.
++ */
++
++int ieee80211_radiotap_iterator_next(
++    struct ieee80211_radiotap_iterator *iterator)
++{
++
++	/*
++	 * small length lookup table for all radiotap types we heard of
++	 * starting from b0 in the bitmap, so we can walk the payload
++	 * area of the radiotap header
++	 *
++	 * There is a requirement to pad args, so that args
++	 * of a given length must begin at a boundary of that length
++	 * -- but note that compound args are allowed (eg, 2 x u16
++	 * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not
++	 * a reliable indicator of alignment requirement.
++	 *
++	 * upper nybble: content alignment for arg
++	 * lower nybble: content length for arg
++	 */
++
++	static const u8 rt_sizes[] = {
++		[IEEE80211_RADIOTAP_TSFT] = 0x88,
++		[IEEE80211_RADIOTAP_FLAGS] = 0x11,
++		[IEEE80211_RADIOTAP_RATE] = 0x11,
++		[IEEE80211_RADIOTAP_CHANNEL] = 0x24,
++		[IEEE80211_RADIOTAP_FHSS] = 0x22,
++		[IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11,
++		[IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11,
++		[IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22,
++		[IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22,
++		[IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22,
++		[IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
++		[IEEE80211_RADIOTAP_ANTENNA] = 0x11,
++		[IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
++		[IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
++		[IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
++		[IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
++		[IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
++		[IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
++		/*
++		 * add more here as they are defined in
++		 * include/net/ieee80211_radiotap.h
++		 */
++	};
++
++	/*
++	 * for every radiotap entry we can at
++	 * least skip (by knowing the length)...
++	 */
++
++	while (iterator->arg_index < (int) sizeof(rt_sizes)) {
++		int hit = 0;
++		int pad;
++
++		if (!(iterator->bitmap_shifter & 1))
++			goto next_entry; /* arg not present */
++
++		/*
++		 * arg is present, account for alignment padding
++		 *  8-bit args can be at any alignment
++		 * 16-bit args must start on 16-bit boundary
++		 * 32-bit args must start on 32-bit boundary
++		 * 64-bit args must start on 64-bit boundary
++		 *
++		 * note that total arg size can differ from alignment of
++		 * elements inside arg, so we use upper nybble of length
++		 * table to base alignment on
++		 *
++		 * also note: these alignments are ** relative to the
++		 * start of the radiotap header **.  There is no guarantee
++		 * that the radiotap header itself is aligned on any
++		 * kind of boundary.
++		 *
++		 * the above is why get_unaligned() is used to dereference
++		 * multibyte elements from the radiotap area
++		 */
++
++		pad = (((ulong)iterator->arg) -
++			((ulong)iterator->rtheader)) &
++			((rt_sizes[iterator->arg_index] >> 4) - 1);
++
++		if (pad)
++			iterator->arg +=
++				(rt_sizes[iterator->arg_index] >> 4) - pad;
++
++		/*
++		 * this is what we will return to user, but we need to
++		 * move on first so next call has something fresh to test
++		 */
++		iterator->this_arg_index = iterator->arg_index;
++		iterator->this_arg = iterator->arg;
++		hit = 1;
++
++		/* internally move on the size of this arg */
++		iterator->arg += rt_sizes[iterator->arg_index] & 0x0f;
++
++		/*
++		 * check for insanity where we are given a bitmap that
++		 * claims to have more arg content than the length of the
++		 * radiotap section.  We will normally end up equalling this
++		 * max_length on the last arg, never exceeding it.
++		 */
++
++		if (((ulong)iterator->arg - (ulong)iterator->rtheader) >
++		    (ulong) iterator->max_length)
++			return -EINVAL;
++
++	next_entry:
++		iterator->arg_index++;
++		if (unlikely((iterator->arg_index & 31) == 0)) {
++			/* completed current u32 bitmap */
++			if (iterator->bitmap_shifter & 1) {
++				/* b31 was set, there is more */
++				/* move to next u32 bitmap */
++				iterator->bitmap_shifter = le32_to_cpu(
++					get_unaligned(iterator->next_bitmap));
++				iterator->next_bitmap++;
++			} else
++				/* no more bitmaps: end */
++				iterator->arg_index = sizeof(rt_sizes);
++		} else /* just try the next bit */
++			iterator->bitmap_shifter >>= 1;
++
++		/* if we found a valid arg earlier, return it now */
++		if (hit)
++			return 0;
++	}
++
++	/* we don't know how to handle any more args, we're done */
++	return -ENOENT;
++}
+diff -urN hostapd.orig/radiotap.h hostapd/radiotap.h
+--- a/hostapd/radiotap.h	1970-01-01 01:00:00.000000000 +0100
++++ b/hostapd/radiotap.h	2008-02-15 23:05:17.000000000 +0100
+@@ -0,0 +1,242 @@
++/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
++/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */
++
++/*-
++ * Copyright (c) 2003, 2004 David Young.  All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ *    notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ *    notice, this list of conditions and the following disclaimer in the
++ *    documentation and/or other materials provided with the distribution.
++ * 3. The name of David Young may not be used to endorse or promote
++ *    products derived from this software without specific prior
++ *    written permission.
++ *
++ * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
++ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
++ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
++ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DAVID
++ * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
++ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
++ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
++ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
++ * OF SUCH DAMAGE.
++ */
++
++/*
++ * Modifications to fit into the linux IEEE 802.11 stack,
++ * Mike Kershaw (dragorn@kismetwireless.net)
++ */
++
++#ifndef IEEE80211RADIOTAP_H
++#define IEEE80211RADIOTAP_H
++
++#include <stdint.h>
++
++/* Base version of the radiotap packet header data */
++#define PKTHDR_RADIOTAP_VERSION		0
++
++/* A generic radio capture format is desirable. There is one for
++ * Linux, but it is neither rigidly defined (there were not even
++ * units given for some fields) nor easily extensible.
++ *
++ * I suggest the following extensible radio capture format. It is
++ * based on a bitmap indicating which fields are present.
++ *
++ * I am trying to describe precisely what the application programmer
++ * should expect in the following, and for that reason I tell the
++ * units and origin of each measurement (where it applies), or else I
++ * use sufficiently weaselly language ("is a monotonically nondecreasing
++ * function of...") that I cannot set false expectations for lawyerly
++ * readers.
++ */
++
++/* The radio capture header precedes the 802.11 header.
++ * All data in the header is little endian on all platforms.
++ */
++struct ieee80211_radiotap_header {
++	uint8_t it_version;	/* Version 0. Only increases
++				 * for drastic changes,
++				 * introduction of compatible
++				 * new fields does not count.
++				 */
++	uint8_t it_pad;
++	uint16_t it_len;	/* length of the whole
++				 * header in bytes, including
++				 * it_version, it_pad,
++				 * it_len, and data fields.
++				 */
++	uint32_t it_present;	/* A bitmap telling which
++				 * fields are present. Set bit 31
++				 * (0x80000000) to extend the
++				 * bitmap by another 32 bits.
++				 * Additional extensions are made
++				 * by setting bit 31.
++				 */
++};
++
++/* Name                                 Data type    Units
++ * ----                                 ---------    -----
++ *
++ * IEEE80211_RADIOTAP_TSFT              __le64       microseconds
++ *
++ *      Value in microseconds of the MAC's 64-bit 802.11 Time
++ *      Synchronization Function timer when the first bit of the
++ *      MPDU arrived at the MAC. For received frames, only.
++ *
++ * IEEE80211_RADIOTAP_CHANNEL           2 x uint16_t   MHz, bitmap
++ *
++ *      Tx/Rx frequency in MHz, followed by flags (see below).
++ *
++ * IEEE80211_RADIOTAP_FHSS              uint16_t       see below
++ *
++ *      For frequency-hopping radios, the hop set (first byte)
++ *      and pattern (second byte).
++ *
++ * IEEE80211_RADIOTAP_RATE              u8           500kb/s
++ *
++ *      Tx/Rx data rate
++ *
++ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL     s8           decibels from
++ *                                                   one milliwatt (dBm)
++ *
++ *      RF signal power at the antenna, decibel difference from
++ *      one milliwatt.
++ *
++ * IEEE80211_RADIOTAP_DBM_ANTNOISE      s8           decibels from
++ *                                                   one milliwatt (dBm)
++ *
++ *      RF noise power at the antenna, decibel difference from one
++ *      milliwatt.
++ *
++ * IEEE80211_RADIOTAP_DB_ANTSIGNAL      u8           decibel (dB)
++ *
++ *      RF signal power at the antenna, decibel difference from an
++ *      arbitrary, fixed reference.
++ *
++ * IEEE80211_RADIOTAP_DB_ANTNOISE       u8           decibel (dB)
++ *
++ *      RF noise power at the antenna, decibel difference from an
++ *      arbitrary, fixed reference point.
++ *
++ * IEEE80211_RADIOTAP_LOCK_QUALITY      uint16_t       unitless
++ *
++ *      Quality of Barker code lock. Unitless. Monotonically
++ *      nondecreasing with "better" lock strength. Called "Signal
++ *      Quality" in datasheets.  (Is there a standard way to measure
++ *      this?)
++ *
++ * IEEE80211_RADIOTAP_TX_ATTENUATION    uint16_t       unitless
++ *
++ *      Transmit power expressed as unitless distance from max
++ *      power set at factory calibration.  0 is max power.
++ *      Monotonically nondecreasing with lower power levels.
++ *
++ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION uint16_t       decibels (dB)
++ *
++ *      Transmit power expressed as decibel distance from max power
++ *      set at factory calibration.  0 is max power.  Monotonically
++ *      nondecreasing with lower power levels.
++ *
++ * IEEE80211_RADIOTAP_DBM_TX_POWER      s8           decibels from
++ *                                                   one milliwatt (dBm)
++ *
++ *      Transmit power expressed as dBm (decibels from a 1 milliwatt
++ *      reference). This is the absolute power level measured at
++ *      the antenna port.
++ *
++ * IEEE80211_RADIOTAP_FLAGS             u8           bitmap
++ *
++ *      Properties of transmitted and received frames. See flags
++ *      defined below.
++ *
++ * IEEE80211_RADIOTAP_ANTENNA           u8           antenna index
++ *
++ *      Unitless indication of the Rx/Tx antenna for this packet.
++ *      The first antenna is antenna 0.
++ *
++ * IEEE80211_RADIOTAP_RX_FLAGS          uint16_t       bitmap
++ *
++ *     Properties of received frames. See flags defined below.
++ *
++ * IEEE80211_RADIOTAP_TX_FLAGS          uint16_t       bitmap
++ *
++ *     Properties of transmitted frames. See flags defined below.
++ *
++ * IEEE80211_RADIOTAP_RTS_RETRIES       u8           data
++ *
++ *     Number of rts retries a transmitted frame used.
++ *
++ * IEEE80211_RADIOTAP_DATA_RETRIES      u8           data
++ *
++ *     Number of unicast retries a transmitted frame used.
++ *
++ */
++enum ieee80211_radiotap_type {
++	IEEE80211_RADIOTAP_TSFT = 0,
++	IEEE80211_RADIOTAP_FLAGS = 1,
++	IEEE80211_RADIOTAP_RATE = 2,
++	IEEE80211_RADIOTAP_CHANNEL = 3,
++	IEEE80211_RADIOTAP_FHSS = 4,
++	IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
++	IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
++	IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
++	IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
++	IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
++	IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
++	IEEE80211_RADIOTAP_ANTENNA = 11,
++	IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
++	IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
++	IEEE80211_RADIOTAP_RX_FLAGS = 14,
++	IEEE80211_RADIOTAP_TX_FLAGS = 15,
++	IEEE80211_RADIOTAP_RTS_RETRIES = 16,
++	IEEE80211_RADIOTAP_DATA_RETRIES = 17,
++	IEEE80211_RADIOTAP_EXT = 31
++};
++
++/* Channel flags. */
++#define	IEEE80211_CHAN_TURBO	0x0010	/* Turbo channel */
++#define	IEEE80211_CHAN_CCK	0x0020	/* CCK channel */
++#define	IEEE80211_CHAN_OFDM	0x0040	/* OFDM channel */
++#define	IEEE80211_CHAN_2GHZ	0x0080	/* 2 GHz spectrum channel. */
++#define	IEEE80211_CHAN_5GHZ	0x0100	/* 5 GHz spectrum channel */
++#define	IEEE80211_CHAN_PASSIVE	0x0200	/* Only passive scan allowed */
++#define	IEEE80211_CHAN_DYN	0x0400	/* Dynamic CCK-OFDM channel */
++#define	IEEE80211_CHAN_GFSK	0x0800	/* GFSK channel (FHSS PHY) */
++
++/* For IEEE80211_RADIOTAP_FLAGS */
++#define	IEEE80211_RADIOTAP_F_CFP	0x01	/* sent/received
++						 * during CFP
++						 */
++#define	IEEE80211_RADIOTAP_F_SHORTPRE	0x02	/* sent/received
++						 * with short
++						 * preamble
++						 */
++#define	IEEE80211_RADIOTAP_F_WEP	0x04	/* sent/received
++						 * with WEP encryption
++						 */
++#define	IEEE80211_RADIOTAP_F_FRAG	0x08	/* sent/received
++						 * with fragmentation
++						 */
++#define	IEEE80211_RADIOTAP_F_FCS	0x10	/* frame includes FCS */
++#define	IEEE80211_RADIOTAP_F_DATAPAD	0x20	/* frame has padding between
++						 * 802.11 header and payload
++						 * (to 32-bit boundary)
++						 */
++/* For IEEE80211_RADIOTAP_RX_FLAGS */
++#define IEEE80211_RADIOTAP_F_RX_BADFCS	0x0001	/* frame failed crc check */
++
++/* For IEEE80211_RADIOTAP_TX_FLAGS */
++#define IEEE80211_RADIOTAP_F_TX_FAIL	0x0001	/* failed due to excessive
++						 * retries */
++#define IEEE80211_RADIOTAP_F_TX_CTS	0x0002	/* used cts 'protection' */
++#define IEEE80211_RADIOTAP_F_TX_RTS	0x0004	/* used rts/cts handshake */
++
++#endif				/* IEEE80211_RADIOTAP_H */
+diff -urN hostapd.orig/radiotap_iter.h hostapd/radiotap_iter.h
+--- a/hostapd/radiotap_iter.h	1970-01-01 01:00:00.000000000 +0100
++++ b/hostapd/radiotap_iter.h	2008-02-15 23:05:17.000000000 +0100
+@@ -0,0 +1,41 @@
++#ifndef __RADIOTAP_ITER_H
++#define __RADIOTAP_ITER_H
++
++#include "radiotap.h"
++
++/* Radiotap header iteration
++ *   implemented in radiotap.c
++ */
++/**
++ * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
++ * @rtheader: pointer to the radiotap header we are walking through
++ * @max_length: length of radiotap header in cpu byte ordering
++ * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
++ * @this_arg: pointer to current radiotap arg
++ * @arg_index: internal next argument index
++ * @arg: internal next argument pointer
++ * @next_bitmap: internal pointer to next present u32
++ * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
++ */
++
++struct ieee80211_radiotap_iterator {
++	struct ieee80211_radiotap_header *rtheader;
++	int max_length;
++	int this_arg_index;
++	unsigned char *this_arg;
++
++	int arg_index;
++	unsigned char *arg;
++	uint32_t *next_bitmap;
++	uint32_t bitmap_shifter;
++};
++
++extern int ieee80211_radiotap_iterator_init(
++   struct ieee80211_radiotap_iterator *iterator,
++   struct ieee80211_radiotap_header *radiotap_header,
++   int max_length);
++
++extern int ieee80211_radiotap_iterator_next(
++   struct ieee80211_radiotap_iterator *iterator);
++
++#endif /* __RADIOTAP_ITER_H */