mirror of https://github.com/hak5/openwrt-owl.git
2969 lines
77 KiB
Diff
2969 lines
77 KiB
Diff
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diff -urN hostapd.orig/driver_nl80211.c hostapd/driver_nl80211.c
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--- a/hostapd/driver_nl80211.c 1970-01-01 01:00:00.000000000 +0100
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+++ b/hostapd/driver_nl80211.c 2008-02-16 19:46:38.000000000 +0100
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@@ -0,0 +1,2382 @@
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+/*
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+ * hostapd / Kernel driver communication via nl80211
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+ * Copyright (c) 2002-2007, Jouni Malinen <j@w1.fi>
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+ * Copyright (c) 2003-2004, Instant802 Networks, Inc.
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+ * Copyright (c) 2005-2006, Devicescape Software, Inc.
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+ * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ * Alternatively, this software may be distributed under the terms of BSD
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+ * license.
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+ *
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+ * See README and COPYING for more details.
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+ */
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+
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+#include "includes.h"
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+
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+#include <sys/ioctl.h>
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+#include <netlink/genl/genl.h>
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+#include <netlink/genl/family.h>
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+#include <netlink/genl/ctrl.h>
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+#include <netlink/msg.h>
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+#include <netlink/attr.h>
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+#include <linux/nl80211.h>
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+#include <net/if.h>
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+#include <linux/if_packet.h>
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+#include <linux/if_ether.h> /* The L2 protocols */
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+#include <linux/wireless.h>
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+#include <net/if_arp.h>
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+
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+#include "hostapd.h"
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+#include "driver.h"
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+#include "ieee802_1x.h"
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+#include "eloop.h"
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+#include "ieee802_11.h"
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+#include "sta_info.h"
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+#include "hw_features.h"
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+#include "mlme.h"
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+#include "radiotap.h"
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+#include "radiotap_iter.h"
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+
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+enum ieee80211_msg_type {
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+ ieee80211_msg_normal = 0,
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+ ieee80211_msg_tx_callback_ack = 1,
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+ ieee80211_msg_tx_callback_fail = 2,
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+};
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+
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+struct i802_driver_data {
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+ struct hostapd_data *hapd;
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+
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+ char iface[IFNAMSIZ + 1];
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+ int ioctl_sock; /* socket for ioctl() use */
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+ int wext_sock; /* socket for wireless events */
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+ int eapol_sock; /* socket for EAPOL frames */
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+ int monitor_sock; /* socket for monitor */
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+ int monitor_ifidx;
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+
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+ int default_if_indices[16];
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+ int *if_indices;
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+ int num_if_indices;
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+
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+ int we_version;
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+ struct nl_handle *nl_handle;
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+ struct nl_cache *nl_cache;
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+ struct genl_family *nl80211;
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+ int dtim_period;
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+ unsigned int beacon_set:1;
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+ unsigned int ieee802_1x_active:1;
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+};
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+
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+
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+static void add_ifidx(struct i802_driver_data *drv, int ifidx)
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+{
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+ int i;
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+ int *old;
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+
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+ for (i = 0; i < drv->num_if_indices; i++) {
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+ if (drv->if_indices[i] == 0) {
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+ drv->if_indices[i] = ifidx;
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+ return;
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+ }
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+ }
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+
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+ if (drv->if_indices != drv->default_if_indices)
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+ old = drv->if_indices;
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+ else
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+ old = NULL;
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+
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+ drv->if_indices = realloc(old,
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+ sizeof(int) * (drv->num_if_indices + 1));
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+ if (!drv->if_indices) {
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+ if (!old)
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+ drv->if_indices = drv->default_if_indices;
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+ else
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+ drv->if_indices = old;
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+ wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
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+ "interfaces");
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+ wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
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+ return;
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+ }
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+ drv->if_indices[drv->num_if_indices] = ifidx;
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+ drv->num_if_indices++;
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+}
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+
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+
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+static void del_ifidx(struct i802_driver_data *drv, int ifidx)
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+{
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+ int i;
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+
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+ for (i = 0; i < drv->num_if_indices; i++) {
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+ if (drv->if_indices[i] == ifidx) {
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+ drv->if_indices[i] = 0;
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+ break;
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+ }
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+ }
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+}
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+
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+
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+static int have_ifidx(struct i802_driver_data *drv, int ifidx)
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+{
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+ int i;
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+
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+ for (i = 0; i < drv->num_if_indices; i++)
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+ if (drv->if_indices[i] == ifidx)
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+ return 1;
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+
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+ return 0;
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+}
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+
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+
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+/* helper for netlink get routines */
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+static int ack_wait_handler(struct nl_msg *msg, void *arg)
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+{
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+ int *finished = arg;
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+
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+ *finished = 1;
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+ return NL_STOP;
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+}
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+
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+
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+static int hostapd_set_iface_flags(struct i802_driver_data *drv,
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+ const char *ifname, int dev_up)
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+{
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+ struct ifreq ifr;
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+
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+ if (drv->ioctl_sock < 0)
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+ return -1;
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+
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+ memset(&ifr, 0, sizeof(ifr));
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+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
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+
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+ if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
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+ perror("ioctl[SIOCGIFFLAGS]");
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+ wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
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+ drv->iface);
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+ return -1;
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+ }
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+
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+ if (dev_up)
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+ ifr.ifr_flags |= IFF_UP;
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+ else
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+ ifr.ifr_flags &= ~IFF_UP;
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+
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+ if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
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+ perror("ioctl[SIOCSIFFLAGS]");
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+ return -1;
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+ }
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+
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+ return 0;
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+}
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+
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+
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+static int i802_set_encryption(const char *iface, void *priv, const char *alg,
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+ const u8 *addr, int idx, const u8 *key,
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+ size_t key_len, int txkey)
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+{
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+ struct i802_driver_data *drv = priv;
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+ struct nl_msg *msg;
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+ int ret = -1;
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+ int err = 0;
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+
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+ msg = nlmsg_alloc();
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+ if (!msg)
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+ goto out;
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+
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+ if (strcmp(alg, "none") == 0) {
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+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
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+ 0, NL80211_CMD_DEL_KEY, 0);
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+ } else {
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+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
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+ 0, NL80211_CMD_NEW_KEY, 0);
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+ NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
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+ if (strcmp(alg, "WEP") == 0) {
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+ if (key_len == 5)
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+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
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+ 0x000FAC01);
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+ else
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+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
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+ 0x000FAC05);
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+ } else if (strcmp(alg, "TKIP") == 0)
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+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
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+ else if (strcmp(alg, "CCMP") == 0)
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+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
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+ else
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+ goto out;
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+ }
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+
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+ if (addr)
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+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
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+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
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+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
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+
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+ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
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+ (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
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+ if (err != -ENOENT) {
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+ err = 0;
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+ goto out;
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+ }
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+ }
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+
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+ /*
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+ * If we need to set the default TX key we do that below,
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+ * otherwise we're done here.
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+ */
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+ if (!txkey || addr) {
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+ ret = 0;
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+ goto out;
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+ }
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+
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+ nlmsg_free(msg);
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+
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+ msg = nlmsg_alloc();
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+ if (!msg)
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+ goto out;
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+
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+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
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+ 0, NL80211_CMD_SET_KEY, 0);
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+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
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+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
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+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
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+
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+ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
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+ (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
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+ if (err != -ENOENT) {
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+ err = 0;
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+ goto out;
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+ }
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+ }
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+
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+ ret = 0;
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+
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+ out:
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+ nla_put_failure:
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+ nlmsg_free(msg);
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+ return ret;
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+}
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+
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+
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+static inline int min_int(int a, int b)
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+{
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+ if (a < b)
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+ return a;
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+ return b;
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+}
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+
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+
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+static int get_key_handler(struct nl_msg *msg, void *arg)
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+{
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+ struct nlattr *tb[NL80211_ATTR_MAX];
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+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
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+
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+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
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+ genlmsg_attrlen(gnlh, 0), NULL);
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+
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+ /*
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+ * TODO: validate the key index and mac address!
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+ * Otherwise, there's a race condition as soon as
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+ * the kernel starts sending key notifications.
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+ */
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+
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+ if (tb[NL80211_ATTR_KEY_SEQ])
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+ memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
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+ min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
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+ return NL_SKIP;
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+}
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+
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+
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+static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
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+ int idx, u8 *seq)
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+{
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+ struct i802_driver_data *drv = priv;
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+ struct nl_msg *msg;
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+ struct nl_cb *cb = NULL;
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+ int ret = -1;
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+ int err = 0;
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+ int finished = 0;
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+
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+ msg = nlmsg_alloc();
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+ if (!msg)
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+ goto out;
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+
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+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
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+ 0, NL80211_CMD_GET_KEY, 0);
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+
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+ if (addr)
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+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
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+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
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+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
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+
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+ cb = nl_cb_alloc(NL_CB_CUSTOM);
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+ if (!cb)
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+ goto out;
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+
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+ memset(seq, 0, 6);
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|
+
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+ if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
|
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+ goto out;
|
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|
+
|
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|
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_key_handler, seq);
|
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|
+ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
|
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|
+
|
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|
+ err = nl_recvmsgs(drv->nl_handle, cb);
|
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|
+
|
||
|
+ if (!finished)
|
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|
+ err = nl_wait_for_ack(drv->nl_handle);
|
||
|
+
|
||
|
+ if (err < 0)
|
||
|
+ goto out;
|
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|
+
|
||
|
+ ret = 0;
|
||
|
+
|
||
|
+ out:
|
||
|
+ nl_cb_put(cb);
|
||
|
+ nla_put_failure:
|
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|
+ nlmsg_free(msg);
|
||
|
+ return ret;
|
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|
+}
|
||
|
+
|
||
|
+
|
||
|
+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 */
|