wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
new file mode 100644
index 0000000..90b3f20
--- /dev/null
+++ b/src/drivers/driver_nl80211.c
@@ -0,0 +1,6550 @@
+/*
+ * Driver interaction with Linux nl80211/cfg80211
+ * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2004, Instant802 Networks, Inc.
+ * Copyright (c) 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (c) 2009-2010, Atheros Communications
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <net/if.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/family.h>
+#include <netlink/genl/ctrl.h>
+#include <linux/rtnetlink.h>
+#include <netpacket/packet.h>
+#include <linux/filter.h>
+#include "nl80211_copy.h"
+
+#include "common.h"
+#include "eloop.h"
+#include "utils/list.h"
+#include "common/ieee802_11_defs.h"
+#include "netlink.h"
+#include "linux_ioctl.h"
+#include "radiotap.h"
+#include "radiotap_iter.h"
+#include "rfkill.h"
+#include "driver.h"
+
+#ifdef CONFIG_LIBNL20
+/* libnl 2.0 compatibility code */
+#define nl_handle nl_sock
+#define nl80211_handle_alloc nl_socket_alloc_cb
+#define nl80211_handle_destroy nl_socket_free
+#else
+/*
+ * libnl 1.1 has a bug, it tries to allocate socket numbers densely
+ * but when you free a socket again it will mess up its bitmap and
+ * and use the wrong number the next time it needs a socket ID.
+ * Therefore, we wrap the handle alloc/destroy and add our own pid
+ * accounting.
+ */
+static uint32_t port_bitmap[32] = { 0 };
+
+static struct nl_handle *nl80211_handle_alloc(void *cb)
+{
+ struct nl_handle *handle;
+ uint32_t pid = getpid() & 0x3FFFFF;
+ int i;
+
+ handle = nl_handle_alloc_cb(cb);
+
+ for (i = 0; i < 1024; i++) {
+ if (port_bitmap[i / 32] & (1 << (i % 32)))
+ continue;
+ port_bitmap[i / 32] |= 1 << (i % 32);
+ pid += i << 22;
+ break;
+ }
+
+ nl_socket_set_local_port(handle, pid);
+
+ return handle;
+}
+
+static void nl80211_handle_destroy(struct nl_handle *handle)
+{
+ uint32_t port = nl_socket_get_local_port(handle);
+
+ port >>= 22;
+ port_bitmap[port / 32] &= ~(1 << (port % 32));
+
+ nl_handle_destroy(handle);
+}
+#endif /* CONFIG_LIBNL20 */
+
+
+#ifndef IFF_LOWER_UP
+#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
+#endif
+#ifndef IFF_DORMANT
+#define IFF_DORMANT 0x20000 /* driver signals dormant */
+#endif
+
+#ifndef IF_OPER_DORMANT
+#define IF_OPER_DORMANT 5
+#endif
+#ifndef IF_OPER_UP
+#define IF_OPER_UP 6
+#endif
+
+struct nl80211_global {
+ struct dl_list interfaces;
+};
+
+struct i802_bss {
+ struct wpa_driver_nl80211_data *drv;
+ struct i802_bss *next;
+ int ifindex;
+ char ifname[IFNAMSIZ + 1];
+ char brname[IFNAMSIZ];
+ unsigned int beacon_set:1;
+ unsigned int added_if_into_bridge:1;
+ unsigned int added_bridge:1;
+};
+
+struct wpa_driver_nl80211_data {
+ struct nl80211_global *global;
+ struct dl_list list;
+ u8 addr[ETH_ALEN];
+ char phyname[32];
+ void *ctx;
+ struct netlink_data *netlink;
+ int ioctl_sock; /* socket for ioctl() use */
+ int ifindex;
+ int if_removed;
+ int if_disabled;
+ struct rfkill_data *rfkill;
+ struct wpa_driver_capa capa;
+ int has_capability;
+
+ int operstate;
+
+ int scan_complete_events;
+
+ struct nl_handle *nl_handle;
+ struct nl_handle *nl_handle_event;
+ struct nl_handle *nl_handle_preq;
+ struct nl_cache *nl_cache;
+ struct nl_cache *nl_cache_event;
+ struct nl_cache *nl_cache_preq;
+ struct nl_cb *nl_cb;
+ struct genl_family *nl80211;
+
+ u8 auth_bssid[ETH_ALEN];
+ u8 bssid[ETH_ALEN];
+ int associated;
+ u8 ssid[32];
+ size_t ssid_len;
+ int nlmode;
+ int ap_scan_as_station;
+ unsigned int assoc_freq;
+
+ int monitor_sock;
+ int monitor_ifidx;
+ int disable_11b_rates;
+
+ unsigned int pending_remain_on_chan:1;
+
+ u64 remain_on_chan_cookie;
+ u64 send_action_cookie;
+
+ unsigned int last_mgmt_freq;
+
+ struct wpa_driver_scan_filter *filter_ssids;
+ size_t num_filter_ssids;
+
+ struct i802_bss first_bss;
+
+#ifdef HOSTAPD
+ int eapol_sock; /* socket for EAPOL frames */
+
+ int default_if_indices[16];
+ int *if_indices;
+ int num_if_indices;
+
+ int last_freq;
+ int last_freq_ht;
+#endif /* HOSTAPD */
+};
+
+
+static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
+ void *timeout_ctx);
+static int wpa_driver_nl80211_set_mode(void *priv, int mode);
+static int
+wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
+static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
+ const u8 *addr, int cmd, u16 reason_code,
+ int local_state_change);
+static void nl80211_remove_monitor_interface(
+ struct wpa_driver_nl80211_data *drv);
+static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
+ unsigned int freq, unsigned int wait,
+ const u8 *buf, size_t buf_len, u64 *cookie);
+static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
+
+#ifdef HOSTAPD
+static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
+static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
+static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
+static int wpa_driver_nl80211_if_remove(void *priv,
+ enum wpa_driver_if_type type,
+ const char *ifname);
+#else /* HOSTAPD */
+static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ return 0;
+}
+#endif /* HOSTAPD */
+
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
+static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
+ int ifindex, int disabled);
+
+static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
+
+
+/* nl80211 code */
+static int ack_handler(struct nl_msg *msg, void *arg)
+{
+ int *err = arg;
+ *err = 0;
+ return NL_STOP;
+}
+
+static int finish_handler(struct nl_msg *msg, void *arg)
+{
+ int *ret = arg;
+ *ret = 0;
+ return NL_SKIP;
+}
+
+static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
+ void *arg)
+{
+ int *ret = arg;
+ *ret = err->error;
+ return NL_SKIP;
+}
+
+
+static int no_seq_check(struct nl_msg *msg, void *arg)
+{
+ return NL_OK;
+}
+
+
+static int send_and_recv(struct wpa_driver_nl80211_data *drv,
+ struct nl_handle *nl_handle, struct nl_msg *msg,
+ int (*valid_handler)(struct nl_msg *, void *),
+ void *valid_data)
+{
+ struct nl_cb *cb;
+ int err = -ENOMEM;
+
+ cb = nl_cb_clone(drv->nl_cb);
+ if (!cb)
+ goto out;
+
+ err = nl_send_auto_complete(nl_handle, msg);
+ if (err < 0)
+ goto out;
+
+ err = 1;
+
+ nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
+ nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
+ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
+
+ if (valid_handler)
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
+ valid_handler, valid_data);
+
+ while (err > 0)
+ nl_recvmsgs(nl_handle, cb);
+ out:
+ nl_cb_put(cb);
+ nlmsg_free(msg);
+ return err;
+}
+
+
+static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
+ struct nl_msg *msg,
+ int (*valid_handler)(struct nl_msg *, void *),
+ void *valid_data)
+{
+ return send_and_recv(drv, drv->nl_handle, msg, valid_handler,
+ valid_data);
+}
+
+
+struct family_data {
+ const char *group;
+ int id;
+};
+
+
+static int family_handler(struct nl_msg *msg, void *arg)
+{
+ struct family_data *res = arg;
+ struct nlattr *tb[CTRL_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *mcgrp;
+ int i;
+
+ nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb[CTRL_ATTR_MCAST_GROUPS])
+ return NL_SKIP;
+
+ nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
+ struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
+ nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
+ nla_len(mcgrp), NULL);
+ if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
+ !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
+ os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
+ res->group,
+ nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
+ continue;
+ res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
+ break;
+ };
+
+ return NL_SKIP;
+}
+
+
+static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
+ const char *family, const char *group)
+{
+ struct nl_msg *msg;
+ int ret = -1;
+ struct family_data res = { group, -ENOENT };
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+ genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
+ 0, 0, CTRL_CMD_GETFAMILY, 0);
+ NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
+
+ ret = send_and_recv_msgs(drv, msg, family_handler, &res);
+ msg = NULL;
+ if (ret == 0)
+ ret = res.id;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (!drv->associated)
+ return -1;
+ os_memcpy(bssid, drv->bssid, ETH_ALEN);
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (!drv->associated)
+ return -1;
+ os_memcpy(ssid, drv->ssid, drv->ssid_len);
+ return drv->ssid_len;
+}
+
+
+static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
+ char *buf, size_t len, int del)
+{
+ union wpa_event_data event;
+
+ os_memset(&event, 0, sizeof(event));
+ if (len > sizeof(event.interface_status.ifname))
+ len = sizeof(event.interface_status.ifname) - 1;
+ os_memcpy(event.interface_status.ifname, buf, len);
+ event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
+ EVENT_INTERFACE_ADDED;
+
+ wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
+ del ? "DEL" : "NEW",
+ event.interface_status.ifname,
+ del ? "removed" : "added");
+
+ if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
+ if (del)
+ drv->if_removed = 1;
+ else
+ drv->if_removed = 0;
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
+}
+
+
+static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
+ u8 *buf, size_t len)
+{
+ int attrlen, rta_len;
+ struct rtattr *attr;
+
+ attrlen = len;
+ attr = (struct rtattr *) buf;
+
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
+ == 0)
+ return 1;
+ else
+ break;
+ }
+ attr = RTA_NEXT(attr, attrlen);
+ }
+
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
+ int ifindex, u8 *buf, size_t len)
+{
+ if (drv->ifindex == ifindex)
+ return 1;
+
+ if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
+ drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
+ wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
+ "interface");
+ wpa_driver_nl80211_finish_drv_init(drv);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
+ struct ifinfomsg *ifi,
+ u8 *buf, size_t len)
+{
+ struct wpa_driver_nl80211_data *drv = ctx;
+ int attrlen, rta_len;
+ struct rtattr *attr;
+ u32 brid = 0;
+
+ if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len) &&
+ !have_ifidx(drv, ifi->ifi_index)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
+ "ifindex %d", ifi->ifi_index);
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
+ "(%s%s%s%s)",
+ drv->operstate, ifi->ifi_flags,
+ (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
+ (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
+ (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
+ (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
+
+ if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Interface down");
+ drv->if_disabled = 1;
+ wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
+ }
+
+ if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Interface up");
+ drv->if_disabled = 0;
+ wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
+ }
+
+ /*
+ * Some drivers send the association event before the operup event--in
+ * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
+ * fails. This will hit us when wpa_supplicant does not need to do
+ * IEEE 802.1X authentication
+ */
+ if (drv->operstate == 1 &&
+ (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
+ !(ifi->ifi_flags & IFF_RUNNING))
+ netlink_send_oper_ifla(drv->netlink, drv->ifindex,
+ -1, IF_OPER_UP);
+
+ attrlen = len;
+ attr = (struct rtattr *) buf;
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ wpa_driver_nl80211_event_link(
+ drv,
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len, 0);
+ } else if (attr->rta_type == IFLA_MASTER)
+ brid = nla_get_u32((struct nlattr *) attr);
+ attr = RTA_NEXT(attr, attrlen);
+ }
+
+#ifdef HOSTAPD
+ if (ifi->ifi_family == AF_BRIDGE && brid) {
+ /* device has been added to bridge */
+ char namebuf[IFNAMSIZ];
+ if_indextoname(brid, namebuf);
+ wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
+ brid, namebuf);
+ add_ifidx(drv, brid);
+ }
+#endif /* HOSTAPD */
+}
+
+
+static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
+ struct ifinfomsg *ifi,
+ u8 *buf, size_t len)
+{
+ struct wpa_driver_nl80211_data *drv = ctx;
+ int attrlen, rta_len;
+ struct rtattr *attr;
+ u32 brid = 0;
+
+ attrlen = len;
+ attr = (struct rtattr *) buf;
+
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_IFNAME) {
+ wpa_driver_nl80211_event_link(
+ drv,
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len, 1);
+ } else if (attr->rta_type == IFLA_MASTER)
+ brid = nla_get_u32((struct nlattr *) attr);
+ attr = RTA_NEXT(attr, attrlen);
+ }
+
+#ifdef HOSTAPD
+ if (ifi->ifi_family == AF_BRIDGE && brid) {
+ /* device has been removed from bridge */
+ char namebuf[IFNAMSIZ];
+ if_indextoname(brid, namebuf);
+ wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
+ "%s", brid, namebuf);
+ del_ifidx(drv, brid);
+ }
+#endif /* HOSTAPD */
+}
+
+
+static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
+ const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len < 24 + sizeof(mgmt->u.auth)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
+ "frame");
+ return;
+ }
+
+ os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
+ os_memset(&event, 0, sizeof(event));
+ os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
+ event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
+ event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
+ if (len > 24 + sizeof(mgmt->u.auth)) {
+ event.auth.ies = mgmt->u.auth.variable;
+ event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
+}
+
+
+static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
+ const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ u16 status;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
+ "frame");
+ return;
+ }
+
+ status = le_to_host16(mgmt->u.assoc_resp.status_code);
+ if (status != WLAN_STATUS_SUCCESS) {
+ os_memset(&event, 0, sizeof(event));
+ event.assoc_reject.bssid = mgmt->bssid;
+ if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
+ event.assoc_reject.resp_ies =
+ (u8 *) mgmt->u.assoc_resp.variable;
+ event.assoc_reject.resp_ies_len =
+ len - 24 - sizeof(mgmt->u.assoc_resp);
+ }
+ event.assoc_reject.status_code = status;
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
+ return;
+ }
+
+ drv->associated = 1;
+ os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
+
+ os_memset(&event, 0, sizeof(event));
+ if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
+ event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
+ event.assoc_info.resp_ies_len =
+ len - 24 - sizeof(mgmt->u.assoc_resp);
+ }
+
+ event.assoc_info.freq = drv->assoc_freq;
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
+}
+
+
+static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
+ enum nl80211_commands cmd, struct nlattr *status,
+ struct nlattr *addr, struct nlattr *req_ie,
+ struct nlattr *resp_ie)
+{
+ union wpa_event_data event;
+
+ if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
+ /*
+ * Avoid reporting two association events that would confuse
+ * the core code.
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
+ "when using userspace SME", cmd);
+ return;
+ }
+
+ os_memset(&event, 0, sizeof(event));
+ if (cmd == NL80211_CMD_CONNECT &&
+ nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
+ if (addr)
+ event.assoc_reject.bssid = nla_data(addr);
+ if (resp_ie) {
+ event.assoc_reject.resp_ies = nla_data(resp_ie);
+ event.assoc_reject.resp_ies_len = nla_len(resp_ie);
+ }
+ event.assoc_reject.status_code = nla_get_u16(status);
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
+ return;
+ }
+
+ drv->associated = 1;
+ if (addr)
+ os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
+
+ if (req_ie) {
+ event.assoc_info.req_ies = nla_data(req_ie);
+ event.assoc_info.req_ies_len = nla_len(req_ie);
+ }
+ if (resp_ie) {
+ event.assoc_info.resp_ies = nla_data(resp_ie);
+ event.assoc_info.resp_ies_len = nla_len(resp_ie);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
+}
+
+
+static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
+ enum nl80211_commands cmd, struct nlattr *addr)
+{
+ union wpa_event_data event;
+ enum wpa_event_type ev;
+
+ if (nla_len(addr) != ETH_ALEN)
+ return;
+
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
+ cmd, MAC2STR((u8 *) nla_data(addr)));
+
+ if (cmd == NL80211_CMD_AUTHENTICATE)
+ ev = EVENT_AUTH_TIMED_OUT;
+ else if (cmd == NL80211_CMD_ASSOCIATE)
+ ev = EVENT_ASSOC_TIMED_OUT;
+ else
+ return;
+
+ os_memset(&event, 0, sizeof(event));
+ os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
+ wpa_supplicant_event(drv->ctx, ev, &event);
+}
+
+
+static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *freq, const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ u16 fc, stype;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len < 24) {
+ wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
+ return;
+ }
+
+ fc = le_to_host16(mgmt->frame_control);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ os_memset(&event, 0, sizeof(event));
+ if (freq) {
+ event.rx_action.freq = nla_get_u32(freq);
+ drv->last_mgmt_freq = event.rx_action.freq;
+ }
+ if (stype == WLAN_FC_STYPE_ACTION) {
+ event.rx_action.da = mgmt->da;
+ event.rx_action.sa = mgmt->sa;
+ event.rx_action.bssid = mgmt->bssid;
+ event.rx_action.category = mgmt->u.action.category;
+ event.rx_action.data = &mgmt->u.action.category + 1;
+ event.rx_action.len = frame + len - event.rx_action.data;
+ wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
+ } else {
+ event.rx_mgmt.frame = frame;
+ event.rx_mgmt.frame_len = len;
+ wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
+ }
+}
+
+
+static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *cookie, const u8 *frame,
+ size_t len, struct nlattr *ack)
+{
+ union wpa_event_data event;
+ const struct ieee80211_hdr *hdr;
+ u16 fc;
+ u64 cookie_val;
+
+ if (!cookie)
+ return;
+
+ cookie_val = nla_get_u64(cookie);
+ wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
+ "(ack=%d)",
+ (long long unsigned int) cookie_val,
+ cookie_val == drv->send_action_cookie ?
+ " (match)" : " (unknown)", ack != NULL);
+ if (cookie_val != drv->send_action_cookie)
+ return;
+
+ hdr = (const struct ieee80211_hdr *) frame;
+ fc = le_to_host16(hdr->frame_control);
+
+ os_memset(&event, 0, sizeof(event));
+ event.tx_status.type = WLAN_FC_GET_TYPE(fc);
+ event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
+ event.tx_status.dst = hdr->addr1;
+ event.tx_status.data = frame;
+ event.tx_status.data_len = len;
+ event.tx_status.ack = ack != NULL;
+ wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
+}
+
+
+static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
+ enum wpa_event_type type,
+ const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ const u8 *bssid = NULL;
+ u16 reason_code = 0;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len >= 24) {
+ bssid = mgmt->bssid;
+
+ if (drv->associated != 0 &&
+ os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
+ os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
+ /*
+ * We have presumably received this deauth as a
+ * response to a clear_state_mismatch() outgoing
+ * deauth. Don't let it take us offline!
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
+ "from Unknown BSSID " MACSTR " -- ignoring",
+ MAC2STR(bssid));
+ return;
+ }
+ }
+
+ drv->associated = 0;
+ os_memset(&event, 0, sizeof(event));
+
+ /* Note: Same offset for Reason Code in both frame subtypes */
+ if (len >= 24 + sizeof(mgmt->u.deauth))
+ reason_code = le_to_host16(mgmt->u.deauth.reason_code);
+
+ if (type == EVENT_DISASSOC) {
+ event.disassoc_info.addr = bssid;
+ event.disassoc_info.reason_code = reason_code;
+ if (frame + len > mgmt->u.disassoc.variable) {
+ event.disassoc_info.ie = mgmt->u.disassoc.variable;
+ event.disassoc_info.ie_len = frame + len -
+ mgmt->u.disassoc.variable;
+ }
+ } else {
+ event.deauth_info.addr = bssid;
+ event.deauth_info.reason_code = reason_code;
+ if (frame + len > mgmt->u.deauth.variable) {
+ event.deauth_info.ie = mgmt->u.deauth.variable;
+ event.deauth_info.ie_len = frame + len -
+ mgmt->u.deauth.variable;
+ }
+ }
+
+ wpa_supplicant_event(drv->ctx, type, &event);
+}
+
+
+static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
+ enum wpa_event_type type,
+ const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ u16 reason_code = 0;
+
+ if (len < 24)
+ return;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+
+ os_memset(&event, 0, sizeof(event));
+ /* Note: Same offset for Reason Code in both frame subtypes */
+ if (len >= 24 + sizeof(mgmt->u.deauth))
+ reason_code = le_to_host16(mgmt->u.deauth.reason_code);
+
+ if (type == EVENT_UNPROT_DISASSOC) {
+ event.unprot_disassoc.sa = mgmt->sa;
+ event.unprot_disassoc.da = mgmt->da;
+ event.unprot_disassoc.reason_code = reason_code;
+ } else {
+ event.unprot_deauth.sa = mgmt->sa;
+ event.unprot_deauth.da = mgmt->da;
+ event.unprot_deauth.reason_code = reason_code;
+ }
+
+ wpa_supplicant_event(drv->ctx, type, &event);
+}
+
+
+static void mlme_event(struct wpa_driver_nl80211_data *drv,
+ enum nl80211_commands cmd, struct nlattr *frame,
+ struct nlattr *addr, struct nlattr *timed_out,
+ struct nlattr *freq, struct nlattr *ack,
+ struct nlattr *cookie)
+{
+ if (timed_out && addr) {
+ mlme_timeout_event(drv, cmd, addr);
+ return;
+ }
+
+ if (frame == NULL) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
+ "data", cmd);
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
+ wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
+ nla_data(frame), nla_len(frame));
+
+ switch (cmd) {
+ case NL80211_CMD_AUTHENTICATE:
+ mlme_event_auth(drv, nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_ASSOCIATE:
+ mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_DEAUTHENTICATE:
+ mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
+ nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_DISASSOCIATE:
+ mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
+ nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_FRAME:
+ mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_FRAME_TX_STATUS:
+ mlme_event_action_tx_status(drv, cookie, nla_data(frame),
+ nla_len(frame), ack);
+ break;
+ case NL80211_CMD_UNPROT_DEAUTHENTICATE:
+ mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
+ nla_data(frame), nla_len(frame));
+ break;
+ case NL80211_CMD_UNPROT_DISASSOCIATE:
+ mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
+ nla_data(frame), nla_len(frame));
+ break;
+ default:
+ break;
+ }
+}
+
+
+static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+ union wpa_event_data data;
+
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
+ os_memset(&data, 0, sizeof(data));
+ if (tb[NL80211_ATTR_MAC]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
+ nla_data(tb[NL80211_ATTR_MAC]),
+ nla_len(tb[NL80211_ATTR_MAC]));
+ data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
+ }
+ if (tb[NL80211_ATTR_KEY_SEQ]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
+ nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ nla_len(tb[NL80211_ATTR_KEY_SEQ]));
+ }
+ if (tb[NL80211_ATTR_KEY_TYPE]) {
+ enum nl80211_key_type key_type =
+ nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
+ if (key_type == NL80211_KEYTYPE_PAIRWISE)
+ data.michael_mic_failure.unicast = 1;
+ } else
+ data.michael_mic_failure.unicast = 1;
+
+ if (tb[NL80211_ATTR_KEY_IDX]) {
+ u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
+}
+
+
+static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+ if (tb[NL80211_ATTR_MAC] == NULL) {
+ wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
+ "event");
+ return;
+ }
+ os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
+ drv->associated = 1;
+ wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
+ MAC2STR(drv->bssid));
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
+}
+
+
+static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
+ int cancel_event, struct nlattr *tb[])
+{
+ unsigned int freq, chan_type, duration;
+ union wpa_event_data data;
+ u64 cookie;
+
+ if (tb[NL80211_ATTR_WIPHY_FREQ])
+ freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
+ else
+ freq = 0;
+
+ if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
+ chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+ else
+ chan_type = 0;
+
+ if (tb[NL80211_ATTR_DURATION])
+ duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
+ else
+ duration = 0;
+
+ if (tb[NL80211_ATTR_COOKIE])
+ cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
+ else
+ cookie = 0;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
+ "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
+ cancel_event, freq, chan_type, duration,
+ (long long unsigned int) cookie,
+ cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
+
+ if (cookie != drv->remain_on_chan_cookie)
+ return; /* not for us */
+
+ drv->pending_remain_on_chan = !cancel_event;
+
+ os_memset(&data, 0, sizeof(data));
+ data.remain_on_channel.freq = freq;
+ data.remain_on_channel.duration = duration;
+ wpa_supplicant_event(drv->ctx, cancel_event ?
+ EVENT_CANCEL_REMAIN_ON_CHANNEL :
+ EVENT_REMAIN_ON_CHANNEL, &data);
+}
+
+
+static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
+ struct nlattr *tb[])
+{
+ union wpa_event_data event;
+ struct nlattr *nl;
+ int rem;
+ struct scan_info *info;
+#define MAX_REPORT_FREQS 50
+ int freqs[MAX_REPORT_FREQS];
+ int num_freqs = 0;
+
+ os_memset(&event, 0, sizeof(event));
+ info = &event.scan_info;
+ info->aborted = aborted;
+
+ if (tb[NL80211_ATTR_SCAN_SSIDS]) {
+ nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
+ struct wpa_driver_scan_ssid *s =
+ &info->ssids[info->num_ssids];
+ s->ssid = nla_data(nl);
+ s->ssid_len = nla_len(nl);
+ info->num_ssids++;
+ if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
+ break;
+ }
+ }
+ if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
+ nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
+ {
+ freqs[num_freqs] = nla_get_u32(nl);
+ num_freqs++;
+ if (num_freqs == MAX_REPORT_FREQS - 1)
+ break;
+ }
+ info->freqs = freqs;
+ info->num_freqs = num_freqs;
+ }
+ wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
+}
+
+
+static int get_link_signal(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
+ static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
+ [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
+ };
+ struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
+ static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
+ [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
+ [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
+ [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
+ [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
+ };
+ struct wpa_signal_info *sig_change = arg;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb[NL80211_ATTR_STA_INFO] ||
+ nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
+ tb[NL80211_ATTR_STA_INFO], policy))
+ return NL_SKIP;
+ if (!sinfo[NL80211_STA_INFO_SIGNAL])
+ return NL_SKIP;
+
+ sig_change->current_signal =
+ (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
+
+ if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
+ if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
+ sinfo[NL80211_STA_INFO_TX_BITRATE],
+ rate_policy)) {
+ sig_change->current_txrate = 0;
+ } else {
+ if (rinfo[NL80211_RATE_INFO_BITRATE]) {
+ sig_change->current_txrate =
+ nla_get_u16(rinfo[
+ NL80211_RATE_INFO_BITRATE]) * 100;
+ }
+ }
+ }
+
+ return NL_SKIP;
+}
+
+
+static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
+ struct wpa_signal_info *sig)
+{
+ struct nl_msg *msg;
+
+ sig->current_signal = -9999;
+ sig->current_txrate = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_STATION, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
+
+ return send_and_recv_msgs(drv, msg, get_link_signal, sig);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int get_link_noise(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
+ static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
+ [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
+ [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
+ };
+ struct wpa_signal_info *sig_change = arg;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (!tb[NL80211_ATTR_SURVEY_INFO]) {
+ wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
+ return NL_SKIP;
+ }
+
+ if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
+ tb[NL80211_ATTR_SURVEY_INFO],
+ survey_policy)) {
+ wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
+ "attributes!");
+ return NL_SKIP;
+ }
+
+ if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
+ return NL_SKIP;
+
+ if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
+ sig_change->frequency)
+ return NL_SKIP;
+
+ if (!sinfo[NL80211_SURVEY_INFO_NOISE])
+ return NL_SKIP;
+
+ sig_change->current_noise =
+ (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
+
+ return NL_SKIP;
+}
+
+
+static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
+ struct wpa_signal_info *sig_change)
+{
+ struct nl_msg *msg;
+
+ sig_change->current_noise = 9999;
+ sig_change->frequency = drv->assoc_freq;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ NLM_F_DUMP, NL80211_CMD_GET_SURVEY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+ static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
+ [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
+ [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
+ [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
+ [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
+ };
+ struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
+ enum nl80211_cqm_rssi_threshold_event event;
+ union wpa_event_data ed;
+ struct wpa_signal_info sig;
+ int res;
+
+ if (tb[NL80211_ATTR_CQM] == NULL ||
+ nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
+ cqm_policy)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
+ return;
+ }
+
+ os_memset(&ed, 0, sizeof(ed));
+
+ if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
+ if (!tb[NL80211_ATTR_MAC])
+ return;
+ os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
+ ETH_ALEN);
+ wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
+ return;
+ }
+
+ if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
+ return;
+ event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
+
+ if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
+ wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
+ "event: RSSI high");
+ ed.signal_change.above_threshold = 1;
+ } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
+ wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
+ "event: RSSI low");
+ ed.signal_change.above_threshold = 0;
+ } else
+ return;
+
+ res = nl80211_get_link_signal(drv, &sig);
+ if (res == 0) {
+ ed.signal_change.current_signal = sig.current_signal;
+ ed.signal_change.current_txrate = sig.current_txrate;
+ wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
+ sig.current_signal, sig.current_txrate);
+ }
+
+ res = nl80211_get_link_noise(drv, &sig);
+ if (res == 0) {
+ ed.signal_change.current_noise = sig.current_noise;
+ wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
+ sig.current_noise);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
+}
+
+
+static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
+ struct nlattr **tb)
+{
+ u8 *addr;
+ union wpa_event_data data;
+
+ if (tb[NL80211_ATTR_MAC] == NULL)
+ return;
+ addr = nla_data(tb[NL80211_ATTR_MAC]);
+ wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
+ if (drv->nlmode != NL80211_IFTYPE_ADHOC)
+ return;
+
+ os_memset(&data, 0, sizeof(data));
+ os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
+ wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
+}
+
+
+static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
+ struct nlattr **tb)
+{
+ u8 *addr;
+ union wpa_event_data data;
+
+ if (tb[NL80211_ATTR_MAC] == NULL)
+ return;
+ addr = nla_data(tb[NL80211_ATTR_MAC]);
+ wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
+ MAC2STR(addr));
+ if (drv->nlmode != NL80211_IFTYPE_ADHOC)
+ return;
+
+ os_memset(&data, 0, sizeof(data));
+ os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
+ wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
+}
+
+
+static int process_event(struct nl_msg *msg, void *arg)
+{
+ struct wpa_driver_nl80211_data *drv = arg;
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ union wpa_event_data data;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (tb[NL80211_ATTR_IFINDEX]) {
+ int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
+ if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
+ " for foreign interface (ifindex %d)",
+ gnlh->cmd, ifindex);
+ return NL_SKIP;
+ }
+ }
+
+ if (drv->ap_scan_as_station &&
+ (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
+ gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
+ wpa_driver_nl80211_set_mode(&drv->first_bss,
+ IEEE80211_MODE_AP);
+ drv->ap_scan_as_station = 0;
+ }
+
+ switch (gnlh->cmd) {
+ case NL80211_CMD_TRIGGER_SCAN:
+ wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
+ break;
+ case NL80211_CMD_NEW_SCAN_RESULTS:
+ wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
+ drv->scan_complete_events = 1;
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
+ drv->ctx);
+ send_scan_event(drv, 0, tb);
+ break;
+ case NL80211_CMD_SCAN_ABORTED:
+ wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
+ /*
+ * Need to indicate that scan results are available in order
+ * not to make wpa_supplicant stop its scanning.
+ */
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
+ drv->ctx);
+ send_scan_event(drv, 1, tb);
+ break;
+ case NL80211_CMD_AUTHENTICATE:
+ case NL80211_CMD_ASSOCIATE:
+ case NL80211_CMD_DEAUTHENTICATE:
+ case NL80211_CMD_DISASSOCIATE:
+ case NL80211_CMD_FRAME:
+ case NL80211_CMD_FRAME_TX_STATUS:
+ case NL80211_CMD_UNPROT_DEAUTHENTICATE:
+ case NL80211_CMD_UNPROT_DISASSOCIATE:
+ mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
+ tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
+ tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
+ tb[NL80211_ATTR_COOKIE]);
+ break;
+ case NL80211_CMD_CONNECT:
+ case NL80211_CMD_ROAM:
+ mlme_event_connect(drv, gnlh->cmd,
+ tb[NL80211_ATTR_STATUS_CODE],
+ tb[NL80211_ATTR_MAC],
+ tb[NL80211_ATTR_REQ_IE],
+ tb[NL80211_ATTR_RESP_IE]);
+ break;
+ case NL80211_CMD_DISCONNECT:
+ if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
+ /*
+ * Avoid reporting two disassociation events that could
+ * confuse the core code.
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
+ "event when using userspace SME");
+ break;
+ }
+ drv->associated = 0;
+ os_memset(&data, 0, sizeof(data));
+ if (tb[NL80211_ATTR_REASON_CODE])
+ data.disassoc_info.reason_code =
+ nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
+ wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
+ break;
+ case NL80211_CMD_MICHAEL_MIC_FAILURE:
+ mlme_event_michael_mic_failure(drv, tb);
+ break;
+ case NL80211_CMD_JOIN_IBSS:
+ mlme_event_join_ibss(drv, tb);
+ break;
+ case NL80211_CMD_REMAIN_ON_CHANNEL:
+ mlme_event_remain_on_channel(drv, 0, tb);
+ break;
+ case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
+ mlme_event_remain_on_channel(drv, 1, tb);
+ break;
+ case NL80211_CMD_NOTIFY_CQM:
+ nl80211_cqm_event(drv, tb);
+ break;
+ case NL80211_CMD_REG_CHANGE:
+ wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
+ wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
+ NULL);
+ break;
+ case NL80211_CMD_REG_BEACON_HINT:
+ wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
+ wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
+ NULL);
+ break;
+ case NL80211_CMD_NEW_STATION:
+ nl80211_new_station_event(drv, tb);
+ break;
+ case NL80211_CMD_DEL_STATION:
+ nl80211_del_station_event(drv, tb);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
+ "(cmd=%d)", gnlh->cmd);
+ break;
+ }
+
+ return NL_SKIP;
+}
+
+
+static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
+ void *handle)
+{
+ struct nl_cb *cb;
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Event message available");
+
+ cb = nl_cb_clone(drv->nl_cb);
+ if (!cb)
+ return;
+ nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
+ nl_recvmsgs(handle, cb);
+ nl_cb_put(cb);
+}
+
+
+/**
+ * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
+ * @priv: driver_nl80211 private data
+ * @alpha2_arg: country to which to switch to
+ * Returns: 0 on success, -1 on failure
+ *
+ * This asks nl80211 to set the regulatory domain for given
+ * country ISO / IEC alpha2.
+ */
+static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ char alpha2[3];
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ alpha2[0] = alpha2_arg[0];
+ alpha2[1] = alpha2_arg[1];
+ alpha2[2] = '\0';
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_REQ_SET_REG, 0);
+
+ NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
+ if (send_and_recv_msgs(drv, msg, NULL, NULL))
+ return -EINVAL;
+ return 0;
+nla_put_failure:
+ return -EINVAL;
+}
+
+
+struct wiphy_info_data {
+ int max_scan_ssids;
+ int ap_supported;
+ int p2p_supported;
+ int auth_supported;
+ int connect_supported;
+ int offchan_tx_supported;
+ int max_remain_on_chan;
+};
+
+
+static int wiphy_info_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct wiphy_info_data *info = arg;
+ int p2p_go_supported = 0, p2p_client_supported = 0;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
+ info->max_scan_ssids =
+ nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
+
+ if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
+ struct nlattr *nl_mode;
+ int i;
+ nla_for_each_nested(nl_mode,
+ tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
+ switch (nla_type(nl_mode)) {
+ case NL80211_IFTYPE_AP:
+ info->ap_supported = 1;
+ break;
+ case NL80211_IFTYPE_P2P_GO:
+ p2p_go_supported = 1;
+ break;
+ case NL80211_IFTYPE_P2P_CLIENT:
+ p2p_client_supported = 1;
+ break;
+ }
+ }
+ }
+
+ info->p2p_supported = p2p_go_supported && p2p_client_supported;
+
+ if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
+ struct nlattr *nl_cmd;
+ int i;
+
+ nla_for_each_nested(nl_cmd,
+ tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
+ u32 cmd = nla_get_u32(nl_cmd);
+ if (cmd == NL80211_CMD_AUTHENTICATE)
+ info->auth_supported = 1;
+ else if (cmd == NL80211_CMD_CONNECT)
+ info->connect_supported = 1;
+ }
+ }
+
+ if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK])
+ info->offchan_tx_supported = 1;
+
+ if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
+ info->max_remain_on_chan =
+ nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
+
+ return NL_SKIP;
+}
+
+
+static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
+ struct wiphy_info_data *info)
+{
+ struct nl_msg *msg;
+
+ os_memset(info, 0, sizeof(*info));
+
+ /* default to 5000 since early versions of mac80211 don't set it */
+ info->max_remain_on_chan = 5000;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ 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, drv->first_bss.ifindex);
+
+ if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
+ return 0;
+ msg = NULL;
+nla_put_failure:
+ nlmsg_free(msg);
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
+{
+ struct wiphy_info_data info;
+ if (wpa_driver_nl80211_get_info(drv, &info))
+ return -1;
+ drv->has_capability = 1;
+ /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
+ drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
+ WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
+ drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
+ WPA_DRIVER_CAPA_ENC_WEP104 |
+ WPA_DRIVER_CAPA_ENC_TKIP |
+ WPA_DRIVER_CAPA_ENC_CCMP;
+ drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
+ WPA_DRIVER_AUTH_SHARED |
+ WPA_DRIVER_AUTH_LEAP;
+
+ drv->capa.max_scan_ssids = info.max_scan_ssids;
+ if (info.ap_supported)
+ drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
+
+ if (info.auth_supported)
+ drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
+ else if (!info.connect_supported) {
+ wpa_printf(MSG_INFO, "nl80211: Driver does not support "
+ "authentication/association or connect commands");
+ return -1;
+ }
+
+ if (info.offchan_tx_supported) {
+ wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
+ "off-channel TX");
+ drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
+ }
+
+ drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
+ drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
+ if (info.p2p_supported)
+ drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
+ drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
+ drv->capa.max_remain_on_chan = info.max_remain_on_chan;
+
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
+{
+ int ret;
+
+ /* Initialize generic netlink and nl80211 */
+
+ drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (drv->nl_cb == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
+ "callbacks");
+ goto err1;
+ }
+
+ drv->nl_handle = nl80211_handle_alloc(drv->nl_cb);
+ if (drv->nl_handle == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
+ "callbacks");
+ goto err2;
+ }
+
+ drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb);
+ if (drv->nl_handle_event == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
+ "callbacks (event)");
+ goto err2b;
+ }
+
+ if (genl_connect(drv->nl_handle)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
+ "netlink");
+ goto err3;
+ }
+
+ if (genl_connect(drv->nl_handle_event)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
+ "netlink (event)");
+ goto err3;
+ }
+
+#ifdef CONFIG_LIBNL20
+ if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache");
+ goto err3;
+ }
+ if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
+ 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache (event)");
+ goto err3b;
+ }
+#else /* CONFIG_LIBNL20 */
+ drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
+ if (drv->nl_cache == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache");
+ goto err3;
+ }
+ drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
+ if (drv->nl_cache_event == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache (event)");
+ goto err3b;
+ }
+#endif /* CONFIG_LIBNL20 */
+
+ drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
+ if (drv->nl80211 == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
+ "found");
+ goto err4;
+ }
+
+ ret = nl_get_multicast_id(drv, "nl80211", "scan");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle_event, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
+ "membership for scan events: %d (%s)",
+ ret, strerror(-ret));
+ goto err4;
+ }
+
+ ret = nl_get_multicast_id(drv, "nl80211", "mlme");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle_event, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
+ "membership for mlme events: %d (%s)",
+ ret, strerror(-ret));
+ goto err4;
+ }
+
+ ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
+ if (ret >= 0)
+ ret = nl_socket_add_membership(drv->nl_handle_event, ret);
+ if (ret < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
+ "membership for regulatory events: %d (%s)",
+ ret, strerror(-ret));
+ /* Continue without regulatory events */
+ }
+
+ eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
+ wpa_driver_nl80211_event_receive, drv,
+ drv->nl_handle_event);
+
+ return 0;
+
+err4:
+ nl_cache_free(drv->nl_cache_event);
+err3b:
+ nl_cache_free(drv->nl_cache);
+err3:
+ nl80211_handle_destroy(drv->nl_handle_event);
+err2b:
+ nl80211_handle_destroy(drv->nl_handle);
+err2:
+ nl_cb_put(drv->nl_cb);
+err1:
+ return -1;
+}
+
+
+static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
+{
+ wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
+ /*
+ * This may be for any interface; use ifdown event to disable
+ * interface.
+ */
+}
+
+
+static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
+{
+ struct wpa_driver_nl80211_data *drv = ctx;
+ wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
+ if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
+ "after rfkill unblock");
+ return;
+ }
+ /* rtnetlink ifup handler will report interface as enabled */
+}
+
+
+static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
+{
+ /* Find phy (radio) to which this interface belongs */
+ char buf[90], *pos;
+ int f, rv;
+
+ drv->phyname[0] = '\0';
+ snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
+ drv->first_bss.ifname);
+ f = open(buf, O_RDONLY);
+ if (f < 0) {
+ wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
+ buf, strerror(errno));
+ return;
+ }
+
+ rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
+ close(f);
+ if (rv < 0) {
+ wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
+ buf, strerror(errno));
+ return;
+ }
+
+ drv->phyname[rv] = '\0';
+ pos = os_strchr(drv->phyname, '\n');
+ if (pos)
+ *pos = '\0';
+ wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
+ drv->first_bss.ifname, drv->phyname);
+}
+
+
+/**
+ * wpa_driver_nl80211_init - Initialize nl80211 driver interface
+ * @ctx: context to be used when calling wpa_supplicant functions,
+ * e.g., wpa_supplicant_event()
+ * @ifname: interface name, e.g., wlan0
+ * @global_priv: private driver global data from global_init()
+ * Returns: Pointer to private data, %NULL on failure
+ */
+static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
+ void *global_priv)
+{
+ struct wpa_driver_nl80211_data *drv;
+ struct netlink_config *cfg;
+ struct rfkill_config *rcfg;
+ struct i802_bss *bss;
+
+ drv = os_zalloc(sizeof(*drv));
+ if (drv == NULL)
+ return NULL;
+ drv->global = global_priv;
+ drv->ctx = ctx;
+ bss = &drv->first_bss;
+ bss->drv = drv;
+ os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
+ drv->monitor_ifidx = -1;
+ drv->monitor_sock = -1;
+ drv->ioctl_sock = -1;
+
+ if (wpa_driver_nl80211_init_nl(drv)) {
+ os_free(drv);
+ return NULL;
+ }
+
+ nl80211_get_phy_name(drv);
+
+ drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
+ if (drv->ioctl_sock < 0) {
+ perror("socket(PF_INET,SOCK_DGRAM)");
+ goto failed;
+ }
+
+ cfg = os_zalloc(sizeof(*cfg));
+ if (cfg == NULL)
+ goto failed;
+ cfg->ctx = drv;
+ cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
+ cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
+ drv->netlink = netlink_init(cfg);
+ if (drv->netlink == NULL) {
+ os_free(cfg);
+ goto failed;
+ }
+
+ rcfg = os_zalloc(sizeof(*rcfg));
+ if (rcfg == NULL)
+ goto failed;
+ rcfg->ctx = drv;
+ os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
+ rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
+ rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
+ drv->rfkill = rfkill_init(rcfg);
+ if (drv->rfkill == NULL) {
+ wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
+ os_free(rcfg);
+ }
+
+ if (wpa_driver_nl80211_finish_drv_init(drv))
+ goto failed;
+
+ if (drv->global)
+ dl_list_add(&drv->global->interfaces, &drv->list);
+
+ return bss;
+
+failed:
+ rfkill_deinit(drv->rfkill);
+ netlink_deinit(drv->netlink);
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl80211_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
+ eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
+
+ os_free(drv);
+ return NULL;
+}
+
+
+static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
+ struct nl_handle *nl_handle,
+ u16 type, const u8 *match, size_t match_len)
+{
+ struct nl_msg *msg;
+ int ret = -1;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_REGISTER_ACTION, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
+ NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
+
+ ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
+ "failed (type=%u): ret=%d (%s)",
+ type, ret, strerror(-ret));
+ wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
+ match, match_len);
+ goto nla_put_failure;
+ }
+ ret = 0;
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
+ const u8 *match, size_t match_len)
+{
+ u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
+ return nl80211_register_frame(drv, drv->nl_handle_event,
+ type, match, match_len);
+}
+
+
+static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
+{
+#ifdef CONFIG_P2P
+ /* GAS Initial Request */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
+ return -1;
+ /* GAS Initial Response */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
+ return -1;
+ /* GAS Comeback Request */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
+ return -1;
+ /* GAS Comeback Response */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
+ return -1;
+ /* P2P Public Action */
+ if (nl80211_register_action_frame(drv,
+ (u8 *) "\x04\x09\x50\x6f\x9a\x09",
+ 6) < 0)
+ return -1;
+ /* P2P Action */
+ if (nl80211_register_action_frame(drv,
+ (u8 *) "\x7f\x50\x6f\x9a\x09",
+ 5) < 0)
+ return -1;
+#endif /* CONFIG_P2P */
+#ifdef CONFIG_IEEE80211W
+ /* SA Query Response */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
+ return -1;
+#endif /* CONFIG_IEEE80211W */
+
+ /* FT Action frames */
+ if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
+ return -1;
+ else
+ drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
+ WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
+
+ return 0;
+}
+
+
+static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
+{
+ wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
+}
+
+
+static int
+wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
+{
+ struct i802_bss *bss = &drv->first_bss;
+ int send_rfkill_event = 0;
+
+ drv->ifindex = if_nametoindex(bss->ifname);
+ drv->first_bss.ifindex = drv->ifindex;
+
+#ifndef HOSTAPD
+ if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
+ "use managed mode");
+ }
+
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
+ if (rfkill_is_blocked(drv->rfkill)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
+ "interface '%s' due to rfkill",
+ bss->ifname);
+ drv->if_disabled = 1;
+ send_rfkill_event = 1;
+ } else {
+ wpa_printf(MSG_ERROR, "nl80211: Could not set "
+ "interface '%s' UP", bss->ifname);
+ return -1;
+ }
+ }
+
+ netlink_send_oper_ifla(drv->netlink, drv->ifindex,
+ 1, IF_OPER_DORMANT);
+#endif /* HOSTAPD */
+
+ if (wpa_driver_nl80211_capa(drv))
+ return -1;
+
+ if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
+ return -1;
+
+ if (nl80211_register_action_frames(drv) < 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
+ "frame processing - ignore for now");
+ /*
+ * Older kernel versions did not support this, so ignore the
+ * error for now. Some functionality may not be available
+ * because of this.
+ */
+ }
+
+ if (send_rfkill_event) {
+ eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
+ drv, drv->ctx);
+ }
+
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
+{
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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, drv->ifindex);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+/**
+ * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
+ * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
+ *
+ * Shut down driver interface and processing of driver events. Free
+ * private data buffer if one was allocated in wpa_driver_nl80211_init().
+ */
+static void wpa_driver_nl80211_deinit(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+
+ if (drv->nl_handle_preq)
+ wpa_driver_nl80211_probe_req_report(bss, 0);
+ if (bss->added_if_into_bridge) {
+ if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
+ < 0)
+ wpa_printf(MSG_INFO, "nl80211: Failed to remove "
+ "interface %s from bridge %s: %s",
+ bss->ifname, bss->brname, strerror(errno));
+ }
+ if (bss->added_bridge) {
+ if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
+ wpa_printf(MSG_INFO, "nl80211: Failed to remove "
+ "bridge %s: %s",
+ bss->brname, strerror(errno));
+ }
+
+ nl80211_remove_monitor_interface(drv);
+
+ if (drv->nlmode == NL80211_IFTYPE_AP)
+ wpa_driver_nl80211_del_beacon(drv);
+
+#ifdef HOSTAPD
+ if (drv->last_freq_ht) {
+ /* Clear HT flags from the driver */
+ struct hostapd_freq_params freq;
+ os_memset(&freq, 0, sizeof(freq));
+ freq.freq = drv->last_freq;
+ i802_set_freq(priv, &freq);
+ }
+
+ if (drv->eapol_sock >= 0) {
+ eloop_unregister_read_sock(drv->eapol_sock);
+ close(drv->eapol_sock);
+ }
+
+ if (drv->if_indices != drv->default_if_indices)
+ os_free(drv->if_indices);
+#endif /* HOSTAPD */
+
+ if (drv->disable_11b_rates)
+ nl80211_disable_11b_rates(drv, drv->ifindex, 0);
+
+ netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
+ netlink_deinit(drv->netlink);
+ rfkill_deinit(drv->rfkill);
+
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+
+ (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
+ wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA);
+
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+
+ eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl_cache_free(drv->nl_cache_event);
+ nl80211_handle_destroy(drv->nl_handle);
+ nl80211_handle_destroy(drv->nl_handle_event);
+ nl_cb_put(drv->nl_cb);
+
+ os_free(drv->filter_ssids);
+
+ if (drv->global)
+ dl_list_del(&drv->list);
+
+ os_free(drv);
+}
+
+
+/**
+ * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
+ * @eloop_ctx: Driver private data
+ * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
+ *
+ * This function can be used as registered timeout when starting a scan to
+ * generate a scan completed event if the driver does not report this.
+ */
+static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ if (drv->ap_scan_as_station) {
+ wpa_driver_nl80211_set_mode(&drv->first_bss,
+ IEEE80211_MODE_AP);
+ drv->ap_scan_as_station = 0;
+ }
+ wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
+ wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
+}
+
+
+/**
+ * wpa_driver_nl80211_scan - Request the driver to initiate scan
+ * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
+ * @params: Scan parameters
+ * Returns: 0 on success, -1 on failure
+ */
+static int wpa_driver_nl80211_scan(void *priv,
+ struct wpa_driver_scan_params *params)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret = 0, timeout;
+ struct nl_msg *msg, *ssids, *freqs;
+ size_t i;
+
+ msg = nlmsg_alloc();
+ ssids = nlmsg_alloc();
+ freqs = nlmsg_alloc();
+ if (!msg || !ssids || !freqs) {
+ nlmsg_free(msg);
+ nlmsg_free(ssids);
+ nlmsg_free(freqs);
+ return -1;
+ }
+
+ os_free(drv->filter_ssids);
+ drv->filter_ssids = params->filter_ssids;
+ params->filter_ssids = NULL;
+ drv->num_filter_ssids = params->num_filter_ssids;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_TRIGGER_SCAN, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ for (i = 0; i < params->num_ssids; i++) {
+ wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
+ params->ssids[i].ssid,
+ params->ssids[i].ssid_len);
+ NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
+ params->ssids[i].ssid);
+ }
+ if (params->num_ssids)
+ nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
+
+ if (params->extra_ies) {
+ wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
+ params->extra_ies, params->extra_ies_len);
+ NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
+ params->extra_ies);
+ }
+
+ if (params->freqs) {
+ for (i = 0; params->freqs[i]; i++) {
+ wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
+ "MHz", params->freqs[i]);
+ NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
+ }
+ nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+#ifdef HOSTAPD
+ if (drv->nlmode == NL80211_IFTYPE_AP) {
+ /*
+ * mac80211 does not allow scan requests in AP mode, so
+ * try to do this in station mode.
+ */
+ if (wpa_driver_nl80211_set_mode(bss,
+ IEEE80211_MODE_INFRA))
+ goto nla_put_failure;
+
+ if (wpa_driver_nl80211_scan(drv, params)) {
+ wpa_driver_nl80211_set_mode(bss,
+ IEEE80211_MODE_AP);
+ goto nla_put_failure;
+ }
+
+ /* Restore AP mode when processing scan results */
+ drv->ap_scan_as_station = 1;
+ ret = 0;
+ } else
+ goto nla_put_failure;
+#else /* HOSTAPD */
+ goto nla_put_failure;
+#endif /* HOSTAPD */
+ }
+
+ /* Not all drivers generate "scan completed" wireless event, so try to
+ * read results after a timeout. */
+ timeout = 10;
+ if (drv->scan_complete_events) {
+ /*
+ * The driver seems to deliver events to notify when scan is
+ * complete, so use longer timeout to avoid race conditions
+ * with scanning and following association request.
+ */
+ timeout = 30;
+ }
+ wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
+ "seconds", ret, timeout);
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+ eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
+ drv, drv->ctx);
+
+nla_put_failure:
+ nlmsg_free(ssids);
+ nlmsg_free(msg);
+ nlmsg_free(freqs);
+ return ret;
+}
+
+
+static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
+{
+ const u8 *end, *pos;
+
+ if (ies == NULL)
+ return NULL;
+
+ pos = ies;
+ end = ies + ies_len;
+
+ while (pos + 1 < end) {
+ if (pos + 2 + pos[1] > end)
+ break;
+ if (pos[0] == ie)
+ return pos;
+ pos += 2 + pos[1];
+ }
+
+ return NULL;
+}
+
+
+static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
+ const u8 *ie, size_t ie_len)
+{
+ const u8 *ssid;
+ size_t i;
+
+ if (drv->filter_ssids == NULL)
+ return 0;
+
+ ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
+ if (ssid == NULL)
+ return 1;
+
+ for (i = 0; i < drv->num_filter_ssids; i++) {
+ if (ssid[1] == drv->filter_ssids[i].ssid_len &&
+ os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
+ 0)
+ return 0;
+ }
+
+ return 1;
+}
+
+
+struct nl80211_bss_info_arg {
+ struct wpa_driver_nl80211_data *drv;
+ struct wpa_scan_results *res;
+};
+
+static int bss_info_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *bss[NL80211_BSS_MAX + 1];
+ static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
+ [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
+ [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
+ [NL80211_BSS_TSF] = { .type = NLA_U64 },
+ [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
+ [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
+ [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
+ [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
+ [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
+ [NL80211_BSS_STATUS] = { .type = NLA_U32 },
+ [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
+ [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
+ };
+ struct nl80211_bss_info_arg *_arg = arg;
+ struct wpa_scan_results *res = _arg->res;
+ struct wpa_scan_res **tmp;
+ struct wpa_scan_res *r;
+ const u8 *ie, *beacon_ie;
+ size_t ie_len, beacon_ie_len;
+ u8 *pos;
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb[NL80211_ATTR_BSS])
+ return NL_SKIP;
+ if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
+ bss_policy))
+ return NL_SKIP;
+ if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
+ ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
+ ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
+ } else {
+ ie = NULL;
+ ie_len = 0;
+ }
+ if (bss[NL80211_BSS_BEACON_IES]) {
+ beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
+ beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
+ } else {
+ beacon_ie = NULL;
+ beacon_ie_len = 0;
+ }
+
+ if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
+ ie ? ie_len : beacon_ie_len))
+ return NL_SKIP;
+
+ r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
+ if (r == NULL)
+ return NL_SKIP;
+ if (bss[NL80211_BSS_BSSID])
+ os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
+ ETH_ALEN);
+ if (bss[NL80211_BSS_FREQUENCY])
+ r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
+ if (bss[NL80211_BSS_BEACON_INTERVAL])
+ r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
+ if (bss[NL80211_BSS_CAPABILITY])
+ r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
+ r->flags |= WPA_SCAN_NOISE_INVALID;
+ if (bss[NL80211_BSS_SIGNAL_MBM]) {
+ r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
+ r->level /= 100; /* mBm to dBm */
+ r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
+ } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
+ r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
+ r->flags |= WPA_SCAN_LEVEL_INVALID;
+ } else
+ r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
+ if (bss[NL80211_BSS_TSF])
+ r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
+ if (bss[NL80211_BSS_SEEN_MS_AGO])
+ r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
+ r->ie_len = ie_len;
+ pos = (u8 *) (r + 1);
+ if (ie) {
+ os_memcpy(pos, ie, ie_len);
+ pos += ie_len;
+ }
+ r->beacon_ie_len = beacon_ie_len;
+ if (beacon_ie)
+ os_memcpy(pos, beacon_ie, beacon_ie_len);
+
+ if (bss[NL80211_BSS_STATUS]) {
+ enum nl80211_bss_status status;
+ status = nla_get_u32(bss[NL80211_BSS_STATUS]);
+ switch (status) {
+ case NL80211_BSS_STATUS_AUTHENTICATED:
+ r->flags |= WPA_SCAN_AUTHENTICATED;
+ break;
+ case NL80211_BSS_STATUS_ASSOCIATED:
+ r->flags |= WPA_SCAN_ASSOCIATED;
+ break;
+ default:
+ break;
+ }
+ }
+
+ tmp = os_realloc(res->res,
+ (res->num + 1) * sizeof(struct wpa_scan_res *));
+ if (tmp == NULL) {
+ os_free(r);
+ return NL_SKIP;
+ }
+ tmp[res->num++] = r;
+ res->res = tmp;
+
+ return NL_SKIP;
+}
+
+
+static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
+ const u8 *addr)
+{
+ if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
+ wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
+ "mismatch (" MACSTR ")", MAC2STR(addr));
+ wpa_driver_nl80211_mlme(drv, addr,
+ NL80211_CMD_DEAUTHENTICATE,
+ WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
+ }
+}
+
+
+static void wpa_driver_nl80211_check_bss_status(
+ struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
+{
+ size_t i;
+
+ for (i = 0; i < res->num; i++) {
+ struct wpa_scan_res *r = res->res[i];
+ if (r->flags & WPA_SCAN_AUTHENTICATED) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan results "
+ "indicates BSS status with " MACSTR
+ " as authenticated",
+ MAC2STR(r->bssid));
+ if (drv->nlmode == NL80211_IFTYPE_STATION &&
+ os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
+ os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
+ 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
+ " in local state (auth=" MACSTR
+ " assoc=" MACSTR ")",
+ MAC2STR(drv->auth_bssid),
+ MAC2STR(drv->bssid));
+ clear_state_mismatch(drv, r->bssid);
+ }
+ }
+
+ if (r->flags & WPA_SCAN_ASSOCIATED) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan results "
+ "indicate BSS status with " MACSTR
+ " as associated",
+ MAC2STR(r->bssid));
+ if (drv->nlmode == NL80211_IFTYPE_STATION &&
+ !drv->associated) {
+ wpa_printf(MSG_DEBUG, "nl80211: Local state "
+ "(not associated) does not match "
+ "with BSS state");
+ clear_state_mismatch(drv, r->bssid);
+ } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
+ os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
+ 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Local state "
+ "(associated with " MACSTR ") does "
+ "not match with BSS state",
+ MAC2STR(drv->bssid));
+ clear_state_mismatch(drv, r->bssid);
+ clear_state_mismatch(drv, drv->bssid);
+ }
+ }
+ }
+}
+
+
+static void wpa_scan_results_free(struct wpa_scan_results *res)
+{
+ size_t i;
+
+ if (res == NULL)
+ return;
+
+ for (i = 0; i < res->num; i++)
+ os_free(res->res[i]);
+ os_free(res->res);
+ os_free(res);
+}
+
+
+static struct wpa_scan_results *
+nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
+{
+ struct nl_msg *msg;
+ struct wpa_scan_results *res;
+ int ret;
+ struct nl80211_bss_info_arg arg;
+
+ res = os_zalloc(sizeof(*res));
+ if (res == NULL)
+ return NULL;
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto nla_put_failure;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
+ NL80211_CMD_GET_SCAN, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ arg.drv = drv;
+ arg.res = res;
+ ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
+ msg = NULL;
+ if (ret == 0) {
+ wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
+ (unsigned long) res->num);
+ return res;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+nla_put_failure:
+ nlmsg_free(msg);
+ wpa_scan_results_free(res);
+ return NULL;
+}
+
+
+/**
+ * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
+ * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
+ * Returns: Scan results on success, -1 on failure
+ */
+static struct wpa_scan_results *
+wpa_driver_nl80211_get_scan_results(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct wpa_scan_results *res;
+
+ res = nl80211_get_scan_results(drv);
+ if (res)
+ wpa_driver_nl80211_check_bss_status(drv, res);
+ return res;
+}
+
+
+static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
+{
+ struct wpa_scan_results *res;
+ size_t i;
+
+ res = nl80211_get_scan_results(drv);
+ if (res == NULL) {
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
+ for (i = 0; i < res->num; i++) {
+ struct wpa_scan_res *r = res->res[i];
+ wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
+ (int) i, (int) res->num, MAC2STR(r->bssid),
+ r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
+ r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
+ }
+
+ wpa_scan_results_free(res);
+}
+
+
+static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
+ enum wpa_alg alg, const u8 *addr,
+ int key_idx, int set_tx,
+ const u8 *seq, size_t seq_len,
+ const u8 *key, size_t key_len)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ifindex = if_nametoindex(ifname);
+ struct nl_msg *msg;
+ int ret;
+
+ wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
+ "set_tx=%d seq_len=%lu key_len=%lu",
+ __func__, ifindex, alg, addr, key_idx, set_tx,
+ (unsigned long) seq_len, (unsigned long) key_len);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ if (alg == WPA_ALG_NONE) {
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_KEY, 0);
+ } else {
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_NEW_KEY, 0);
+ NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
+ switch (alg) {
+ case WPA_ALG_WEP:
+ if (key_len == 5)
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP40);
+ else
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP104);
+ break;
+ case WPA_ALG_TKIP:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_TKIP);
+ break;
+ case WPA_ALG_CCMP:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_CCMP);
+ break;
+ case WPA_ALG_IGTK:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_AES_CMAC);
+ break;
+ default:
+ wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
+ "algorithm %d", __func__, alg);
+ nlmsg_free(msg);
+ return -1;
+ }
+ }
+
+ if (seq && seq_len)
+ NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
+
+ if (addr && !is_broadcast_ether_addr(addr)) {
+ wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
+ wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
+ NL80211_KEYTYPE_GROUP);
+ }
+ } else if (addr && is_broadcast_ether_addr(addr)) {
+ struct nl_msg *types;
+ int err;
+ wpa_printf(MSG_DEBUG, " broadcast key");
+ types = nlmsg_alloc();
+ if (!types)
+ goto nla_put_failure;
+ NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
+ err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
+ types);
+ nlmsg_free(types);
+ if (err)
+ goto nla_put_failure;
+ }
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
+ ret, strerror(-ret));
+
+ /*
+ * If we failed or don't need to set the default TX key (below),
+ * we're done here.
+ */
+ if (ret || !set_tx || alg == WPA_ALG_NONE)
+ return ret;
+ if (drv->nlmode == NL80211_IFTYPE_AP && addr &&
+ !is_broadcast_ether_addr(addr))
+ return ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_KEY, 0);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+ if (alg == WPA_ALG_IGTK)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
+ else
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
+ if (addr && is_broadcast_ether_addr(addr)) {
+ struct nl_msg *types;
+ int err;
+ types = nlmsg_alloc();
+ if (!types)
+ goto nla_put_failure;
+ NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
+ err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
+ types);
+ nlmsg_free(types);
+ if (err)
+ goto nla_put_failure;
+ } else if (addr) {
+ struct nl_msg *types;
+ int err;
+ types = nlmsg_alloc();
+ if (!types)
+ goto nla_put_failure;
+ NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
+ err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
+ types);
+ nlmsg_free(types);
+ if (err)
+ goto nla_put_failure;
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
+ "err=%d %s)", ret, strerror(-ret));
+ return ret;
+
+nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
+ int key_idx, int defkey,
+ const u8 *seq, size_t seq_len,
+ const u8 *key, size_t key_len)
+{
+ struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
+ if (!key_attr)
+ return -1;
+
+ if (defkey && alg == WPA_ALG_IGTK)
+ NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
+ else if (defkey)
+ NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
+
+ NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
+
+ switch (alg) {
+ case WPA_ALG_WEP:
+ if (key_len == 5)
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP40);
+ else
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP104);
+ break;
+ case WPA_ALG_TKIP:
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
+ break;
+ case WPA_ALG_CCMP:
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
+ break;
+ case WPA_ALG_IGTK:
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_AES_CMAC);
+ break;
+ default:
+ wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
+ "algorithm %d", __func__, alg);
+ return -1;
+ }
+
+ if (seq && seq_len)
+ NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
+
+ NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
+
+ nla_nest_end(msg, key_attr);
+
+ return 0;
+ nla_put_failure:
+ return -1;
+}
+
+
+static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
+ struct nl_msg *msg)
+{
+ int i, privacy = 0;
+ struct nlattr *nl_keys, *nl_key;
+
+ for (i = 0; i < 4; i++) {
+ if (!params->wep_key[i])
+ continue;
+ privacy = 1;
+ break;
+ }
+ if (params->wps == WPS_MODE_PRIVACY)
+ privacy = 1;
+ if (params->pairwise_suite &&
+ params->pairwise_suite != WPA_CIPHER_NONE)
+ privacy = 1;
+
+ if (!privacy)
+ return 0;
+
+ NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
+
+ nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
+ if (!nl_keys)
+ goto nla_put_failure;
+
+ for (i = 0; i < 4; i++) {
+ if (!params->wep_key[i])
+ continue;
+
+ nl_key = nla_nest_start(msg, i);
+ if (!nl_key)
+ goto nla_put_failure;
+
+ NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
+ params->wep_key[i]);
+ if (params->wep_key_len[i] == 5)
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP40);
+ else
+ NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
+ WLAN_CIPHER_SUITE_WEP104);
+
+ NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
+
+ if (i == params->wep_tx_keyidx)
+ NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
+
+ nla_nest_end(msg, nl_key);
+ }
+ nla_nest_end(msg, nl_keys);
+
+ return 0;
+
+nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
+ const u8 *addr, int cmd, u16 reason_code,
+ int local_state_change)
+{
+ int ret = -1;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ if (local_state_change)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ ret = 0;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
+ const u8 *addr, int reason_code)
+{
+ wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
+ __func__, MAC2STR(addr), reason_code);
+ drv->associated = 0;
+ return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
+ reason_code, 0);
+}
+
+
+static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
+ int reason_code)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
+ return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
+ wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
+ __func__, MAC2STR(addr), reason_code);
+ drv->associated = 0;
+ if (drv->nlmode == NL80211_IFTYPE_ADHOC)
+ return nl80211_leave_ibss(drv);
+ return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
+ reason_code, 0);
+}
+
+
+static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
+ int reason_code)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
+ return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
+ wpa_printf(MSG_DEBUG, "%s", __func__);
+ drv->associated = 0;
+ return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
+ reason_code, 0);
+}
+
+
+static int wpa_driver_nl80211_authenticate(
+ void *priv, struct wpa_driver_auth_params *params)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret = -1, i;
+ struct nl_msg *msg;
+ enum nl80211_auth_type type;
+ int count = 0;
+
+ drv->associated = 0;
+ os_memset(drv->auth_bssid, 0, ETH_ALEN);
+ /* FIX: IBSS mode */
+ if (drv->nlmode != NL80211_IFTYPE_STATION &&
+ wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0)
+ return -1;
+
+retry:
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
+ drv->ifindex);
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_AUTHENTICATE, 0);
+
+ for (i = 0; i < 4; i++) {
+ if (!params->wep_key[i])
+ continue;
+ wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
+ NULL, i,
+ i == params->wep_tx_keyidx, NULL, 0,
+ params->wep_key[i],
+ params->wep_key_len[i]);
+ if (params->wep_tx_keyidx != i)
+ continue;
+ if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
+ params->wep_key[i], params->wep_key_len[i])) {
+ nlmsg_free(msg);
+ return -1;
+ }
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ }
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
+ if (params->ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
+ if (params->auth_alg & WPA_AUTH_ALG_OPEN)
+ type = NL80211_AUTHTYPE_OPEN_SYSTEM;
+ else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
+ type = NL80211_AUTHTYPE_SHARED_KEY;
+ else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
+ type = NL80211_AUTHTYPE_NETWORK_EAP;
+ else if (params->auth_alg & WPA_AUTH_ALG_FT)
+ type = NL80211_AUTHTYPE_FT;
+ else
+ goto nla_put_failure;
+ wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
+ NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
+ if (params->local_state_change) {
+ wpa_printf(MSG_DEBUG, " * Local state change only");
+ NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ count++;
+ if (ret == -EALREADY && count == 1 && params->bssid &&
+ !params->local_state_change) {
+ /*
+ * mac80211 does not currently accept new
+ * authentication if we are already authenticated. As a
+ * workaround, force deauthentication and try again.
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
+ "after forced deauthentication");
+ wpa_driver_nl80211_deauthenticate(
+ bss, params->bssid,
+ WLAN_REASON_PREV_AUTH_NOT_VALID);
+ nlmsg_free(msg);
+ goto retry;
+ }
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
+ "successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+struct phy_info_arg {
+ u16 *num_modes;
+ struct hostapd_hw_modes *modes;
+};
+
+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 },
+ [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
+ };
+
+ 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 = os_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);
+
+ if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
+ mode->ht_capab = nla_get_u16(
+ tb_band[NL80211_BAND_ATTR_HT_CAPA]);
+ }
+
+ if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
+ mode->a_mpdu_params |= nla_get_u8(
+ tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
+ 0x03;
+ }
+
+ if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
+ mode->a_mpdu_params |= nla_get_u8(
+ tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
+ 2;
+ }
+
+ if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
+ nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
+ u8 *mcs;
+ mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
+ os_memcpy(mode->mcs_set, mcs, 16);
+ }
+
+ 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 = os_zalloc(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 = 0;
+
+ 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 == 2484)
+ 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_DISABLED;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_PASSIVE_SCAN;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_NO_IBSS;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_RADAR;
+
+ if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
+ !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+ mode->channels[idx].max_tx_power =
+ nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
+
+ 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 = os_zalloc(mode->num_rates * sizeof(int));
+ 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] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
+
+ /* crude heuristic */
+ if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
+ mode->rates[idx] > 200)
+ mode->mode = HOSTAPD_MODE_IEEE80211G;
+
+ idx++;
+ }
+ }
+
+ return NL_SKIP;
+}
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
+{
+ u16 m;
+ struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
+ int i, mode11g_idx = -1;
+
+ /* If only 802.11g mode is included, use it to construct matching
+ * 802.11b mode data. */
+
+ for (m = 0; m < *num_modes; m++) {
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
+ return modes; /* 802.11b already included */
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
+ mode11g_idx = m;
+ }
+
+ if (mode11g_idx < 0)
+ return modes; /* 2.4 GHz band not supported at all */
+
+ nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
+ if (nmodes == NULL)
+ return modes; /* Could not add 802.11b mode */
+
+ mode = &nmodes[*num_modes];
+ os_memset(mode, 0, sizeof(*mode));
+ (*num_modes)++;
+ modes = nmodes;
+
+ mode->mode = HOSTAPD_MODE_IEEE80211B;
+
+ mode11g = &modes[mode11g_idx];
+ mode->num_channels = mode11g->num_channels;
+ mode->channels = os_malloc(mode11g->num_channels *
+ sizeof(struct hostapd_channel_data));
+ if (mode->channels == NULL) {
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+ os_memcpy(mode->channels, mode11g->channels,
+ mode11g->num_channels * sizeof(struct hostapd_channel_data));
+
+ mode->num_rates = 0;
+ mode->rates = os_malloc(4 * sizeof(int));
+ if (mode->rates == NULL) {
+ os_free(mode->channels);
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+
+ for (i = 0; i < mode11g->num_rates; i++) {
+ if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
+ mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
+ continue;
+ mode->rates[mode->num_rates] = mode11g->rates[i];
+ mode->num_rates++;
+ if (mode->num_rates == 4)
+ break;
+ }
+
+ if (mode->num_rates == 0) {
+ os_free(mode->channels);
+ os_free(mode->rates);
+ (*num_modes)--;
+ return modes; /* No 802.11b rates */
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
+ "information");
+
+ return modes;
+}
+
+
+static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
+ int end)
+{
+ int c;
+
+ for (c = 0; c < mode->num_channels; c++) {
+ struct hostapd_channel_data *chan = &mode->channels[c];
+ if (chan->freq - 10 >= start && chan->freq + 10 <= end)
+ chan->flag |= HOSTAPD_CHAN_HT40;
+ }
+}
+
+
+static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
+ int end)
+{
+ int c;
+
+ for (c = 0; c < mode->num_channels; c++) {
+ struct hostapd_channel_data *chan = &mode->channels[c];
+ if (!(chan->flag & HOSTAPD_CHAN_HT40))
+ continue;
+ if (chan->freq - 30 >= start && chan->freq - 10 <= end)
+ chan->flag |= HOSTAPD_CHAN_HT40MINUS;
+ if (chan->freq + 10 >= start && chan->freq + 30 <= end)
+ chan->flag |= HOSTAPD_CHAN_HT40PLUS;
+ }
+}
+
+
+static void nl80211_reg_rule_ht40(struct nlattr *tb[],
+ struct phy_info_arg *results)
+{
+ u32 start, end, max_bw;
+ u16 m;
+
+ if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
+ tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
+ tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
+ return;
+
+ start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
+ end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
+ max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
+
+ wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
+ start, end, max_bw);
+ if (max_bw < 40)
+ return;
+
+ for (m = 0; m < *results->num_modes; m++) {
+ if (!(results->modes[m].ht_capab &
+ HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+ continue;
+ nl80211_set_ht40_mode(&results->modes[m], start, end);
+ }
+}
+
+
+static void nl80211_reg_rule_sec(struct nlattr *tb[],
+ struct phy_info_arg *results)
+{
+ u32 start, end, max_bw;
+ u16 m;
+
+ if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
+ tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
+ tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
+ return;
+
+ start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
+ end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
+ max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
+
+ if (max_bw < 20)
+ return;
+
+ for (m = 0; m < *results->num_modes; m++) {
+ if (!(results->modes[m].ht_capab &
+ HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+ continue;
+ nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
+ }
+}
+
+
+static int nl80211_get_reg(struct nl_msg *msg, void *arg)
+{
+ struct phy_info_arg *results = arg;
+ struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct nlattr *nl_rule;
+ struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
+ int rem_rule;
+ static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
+ [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
+ [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
+ [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
+ };
+
+ nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
+ !tb_msg[NL80211_ATTR_REG_RULES]) {
+ wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
+ "available");
+ return NL_SKIP;
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
+ (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
+
+ nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
+ {
+ nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
+ nla_data(nl_rule), nla_len(nl_rule), reg_policy);
+ nl80211_reg_rule_ht40(tb_rule, results);
+ }
+
+ nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
+ {
+ nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
+ nla_data(nl_rule), nla_len(nl_rule), reg_policy);
+ nl80211_reg_rule_sec(tb_rule, results);
+ }
+
+ return NL_SKIP;
+}
+
+
+static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
+ struct phy_info_arg *results)
+{
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_REG, 0);
+ return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
+}
+
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ struct phy_info_arg result = {
+ .num_modes = num_modes,
+ .modes = NULL,
+ };
+
+ *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, drv->ifindex);
+
+ if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
+ nl80211_set_ht40_flags(drv, &result);
+ return wpa_driver_nl80211_add_11b(result.modes, num_modes);
+ }
+ nla_put_failure:
+ return NULL;
+}
+
+
+static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
+ const void *data, size_t len,
+ int encrypt)
+{
+ __u8 rtap_hdr[] = {
+ 0x00, 0x00, /* radiotap version */
+ 0x0e, 0x00, /* radiotap length */
+ 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
+ IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
+ 0x00, /* padding */
+ 0x00, 0x00, /* RX and TX flags to indicate that */
+ 0x00, 0x00, /* this is the injected frame directly */
+ };
+ 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,
+ };
+ int res;
+
+ if (encrypt)
+ rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
+
+ res = sendmsg(drv->monitor_sock, &msg, 0);
+ if (res < 0) {
+ wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
+ return -1;
+ }
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
+ size_t data_len)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct ieee80211_mgmt *mgmt;
+ int encrypt = 1;
+ u16 fc;
+
+ mgmt = (struct ieee80211_mgmt *) data;
+ fc = le_to_host16(mgmt->frame_control);
+
+ if (drv->nlmode == NL80211_IFTYPE_STATION &&
+ WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
+ WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
+ /*
+ * The use of last_mgmt_freq is a bit of a hack,
+ * but it works due to the single-threaded nature
+ * of wpa_supplicant.
+ */
+ return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
+ data, data_len, NULL);
+ }
+
+ if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
+ WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
+ /*
+ * Only one of the authentication frame types is encrypted.
+ * In order for static WEP encryption to work properly (i.e.,
+ * to not encrypt the frame), we need to tell mac80211 about
+ * the frames that must not be encrypted.
+ */
+ u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
+ u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
+ if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
+ encrypt = 0;
+ }
+
+ return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
+}
+
+
+static int wpa_driver_nl80211_set_beacon(void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len,
+ int dtim_period, int beacon_int)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ u8 cmd = NL80211_CMD_NEW_BEACON;
+ int ret;
+ int beacon_set;
+ int ifindex = if_nametoindex(bss->ifname);
+
+ beacon_set = bss->beacon_set;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
+ beacon_set);
+ if (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, ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
+ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
+ ret, strerror(-ret));
+ } else {
+ bss->beacon_set = 1;
+ }
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
+ int freq, int ht_enabled,
+ int sec_channel_offset)
+{
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+ if (ht_enabled) {
+ switch (sec_channel_offset) {
+ case -1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40MINUS);
+ break;
+ case 1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40PLUS);
+ break;
+ default:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT20);
+ break;
+ }
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
+ "%d (%s)", freq, ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_sta_add(void *priv,
+ struct hostapd_sta_add_params *params)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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(bss->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
+ NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
+ params->supp_rates);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
+ params->listen_interval);
+ if (params->ht_capabilities) {
+ NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
+ sizeof(*params->ht_capabilities),
+ params->ht_capabilities);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
+ "result: %d (%s)", ret, strerror(-ret));
+ if (ret == -EEXIST)
+ ret = 0;
+ nla_put_failure:
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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(bss->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ return 0;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx)
+{
+ struct nl_msg *msg;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
+
+#ifdef HOSTAPD
+ /* stop listening for EAPOL on this interface */
+ del_ifidx(drv, ifidx);
+#endif /* HOSTAPD */
+
+ 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 (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return;
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
+}
+
+
+static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
+ const char *ifname,
+ enum nl80211_iftype iftype,
+ const u8 *addr, int wds)
+{
+ struct nl_msg *msg, *flags = NULL;
+ int ifidx;
+ int ret = -ENOBUFS;
+
+ 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, drv->ifindex);
+ 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;
+ } else if (wds) {
+ NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
+ ifname, ret, strerror(-ret));
+ return ret;
+ }
+
+ ifidx = if_nametoindex(ifname);
+ wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
+ ifname, ifidx);
+
+ if (ifidx <= 0)
+ return -1;
+
+#ifdef HOSTAPD
+ /* start listening for EAPOL on this interface */
+ add_ifidx(drv, ifidx);
+#endif /* HOSTAPD */
+
+ if (addr && iftype != NL80211_IFTYPE_MONITOR &&
+ linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+
+ return ifidx;
+}
+
+
+static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, enum nl80211_iftype iftype,
+ const u8 *addr, int wds)
+{
+ int ret;
+
+ ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
+
+ /* if error occured and interface exists already */
+ if (ret == -ENFILE && if_nametoindex(ifname)) {
+ wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
+
+ /* Try to remove the interface that was already there. */
+ nl80211_remove_iface(drv, if_nametoindex(ifname));
+
+ /* Try to create the interface again */
+ ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
+ wds);
+ }
+
+ if (ret >= 0 && drv->disable_11b_rates)
+ nl80211_disable_11b_rates(drv, ret, 1);
+
+ return ret;
+}
+
+
+static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc;
+ union wpa_event_data event;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ os_memset(&event, 0, sizeof(event));
+ event.tx_status.type = WLAN_FC_GET_TYPE(fc);
+ event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
+ event.tx_status.dst = hdr->addr1;
+ event.tx_status.data = buf;
+ event.tx_status.data_len = len;
+ event.tx_status.ack = ok;
+ wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
+}
+
+
+static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
+ u8 *buf, size_t len)
+{
+ union wpa_event_data event;
+ os_memset(&event, 0, sizeof(event));
+ event.rx_from_unknown.frame = buf;
+ event.rx_from_unknown.len = len;
+ wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
+}
+
+
+static void handle_frame(struct wpa_driver_nl80211_data *drv,
+ u8 *buf, size_t len, int datarate, int ssi_signal)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc;
+ union wpa_event_data event;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ switch (WLAN_FC_GET_TYPE(fc)) {
+ case WLAN_FC_TYPE_MGMT:
+ os_memset(&event, 0, sizeof(event));
+ event.rx_mgmt.frame = buf;
+ event.rx_mgmt.frame_len = len;
+ event.rx_mgmt.datarate = datarate;
+ event.rx_mgmt.ssi_signal = ssi_signal;
+ wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* can only get here with PS-Poll frames */
+ wpa_printf(MSG_DEBUG, "CTRL");
+ from_unknown_sta(drv, buf, len);
+ break;
+ case WLAN_FC_TYPE_DATA:
+ from_unknown_sta(drv, buf, len);
+ break;
+ }
+}
+
+
+static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ int len;
+ unsigned char buf[3000];
+ struct ieee80211_radiotap_iterator iter;
+ int ret;
+ int datarate = 0, ssi_signal = 0;
+ int injected = 0, failed = 0, 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;
+ }
+
+ 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 */
+ break;
+ case IEEE80211_RADIOTAP_RATE:
+ datarate = *iter.this_arg * 5;
+ break;
+ case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
+ ssi_signal = *iter.this_arg;
+ break;
+ }
+ }
+
+ if (rxflags && injected)
+ return;
+
+ if (!injected)
+ handle_frame(drv, buf + iter.max_length,
+ len - iter.max_length, datarate, ssi_signal);
+ else
+ handle_tx_callback(drv->ctx, buf + iter.max_length,
+ len - iter.max_length, !failed);
+}
+
+
+/*
+ * we post-process the filter code later and rewrite
+ * this to the offset to the last instruction
+ */
+#define PASS 0xFF
+#define FAIL 0xFE
+
+static struct sock_filter msock_filter_insns[] = {
+ /*
+ * do a little-endian load of the radiotap length field
+ */
+ /* load lower byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ /* put it into X (== index register) */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+ /* load upper byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
+ /* left-shift it by 8 */
+ BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
+ /* or with X */
+ BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
+ /* put result into X */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+
+ /*
+ * Allow management frames through, this also gives us those
+ * management frames that we sent ourselves with status
+ */
+ /* load the lower byte of the IEEE 802.11 frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off frame type and version */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
+ /* accept frame if it's both 0, fall through otherwise */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
+
+ /*
+ * TODO: add a bit to radiotap RX flags that indicates
+ * that the sending station is not associated, then
+ * add a filter here that filters on our DA and that flag
+ * to allow us to deauth frames to that bad station.
+ *
+ * For now allow all To DS data frames through.
+ */
+ /* load the IEEE 802.11 frame control field */
+ BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
+ /* mask off frame type, version and DS status */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
+ /* accept frame if version 0, type 2 and To DS, fall through otherwise
+ */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
+
+#if 0
+ /*
+ * drop non-data frames
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
+ /* drop non-data frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
+#endif
+ /* load the upper byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
+ /* mask off toDS/fromDS */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
+ /* accept WDS frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
+
+ /*
+ * add header length to index
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
+ /* right shift it by 6 to give 0 or 2 */
+ BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
+ /* add data frame header length */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
+ /* add index, was start of 802.11 header */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
+ /* move to index, now start of LL header */
+ BPF_STMT(BPF_MISC | BPF_TAX, 0),
+
+ /*
+ * Accept empty data frames, we use those for
+ * polling activity.
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
+
+ /*
+ * Accept EAPOL frames
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
+
+ /* keep these last two statements or change the code below */
+ /* return 0 == "DROP" */
+ BPF_STMT(BPF_RET | BPF_K, 0),
+ /* return ~0 == "keep all" */
+ BPF_STMT(BPF_RET | BPF_K, ~0),
+};
+
+static struct sock_fprog msock_filter = {
+ .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
+ .filter = msock_filter_insns,
+};
+
+
+static int add_monitor_filter(int s)
+{
+ int idx;
+
+ /* rewrite all PASS/FAIL jump offsets */
+ for (idx = 0; idx < msock_filter.len; idx++) {
+ struct sock_filter *insn = &msock_filter_insns[idx];
+
+ if (BPF_CLASS(insn->code) == BPF_JMP) {
+ if (insn->code == (BPF_JMP|BPF_JA)) {
+ if (insn->k == PASS)
+ insn->k = msock_filter.len - idx - 2;
+ else if (insn->k == FAIL)
+ insn->k = msock_filter.len - idx - 3;
+ }
+
+ if (insn->jt == PASS)
+ insn->jt = msock_filter.len - idx - 2;
+ else if (insn->jt == FAIL)
+ insn->jt = msock_filter.len - idx - 3;
+
+ if (insn->jf == PASS)
+ insn->jf = msock_filter.len - idx - 2;
+ else if (insn->jf == FAIL)
+ insn->jf = msock_filter.len - idx - 3;
+ }
+ }
+
+ if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
+ &msock_filter, sizeof(msock_filter))) {
+ perror("SO_ATTACH_FILTER");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static void nl80211_remove_monitor_interface(
+ struct wpa_driver_nl80211_data *drv)
+{
+ if (drv->monitor_ifidx >= 0) {
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ drv->monitor_ifidx = -1;
+ }
+ if (drv->monitor_sock >= 0) {
+ eloop_unregister_read_sock(drv->monitor_sock);
+ close(drv->monitor_sock);
+ drv->monitor_sock = -1;
+ }
+}
+
+
+static int
+nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
+{
+ char buf[IFNAMSIZ];
+ struct sockaddr_ll ll;
+ int optval;
+ socklen_t optlen;
+
+ snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
+ buf[IFNAMSIZ - 1] = '\0';
+
+ drv->monitor_ifidx =
+ nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
+ 0);
+
+ if (drv->monitor_ifidx < 0)
+ return -1;
+
+ if (linux_set_iface_flags(drv->ioctl_sock, 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 (add_monitor_filter(drv->monitor_sock)) {
+ wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
+ "interface; do filtering in user space");
+ /* This works, but will cost in performance. */
+ }
+
+ 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_monitor_interface(drv);
+ return -1;
+}
+
+
+static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+static int wpa_driver_nl80211_hapd_send_eapol(
+ void *priv, const u8 *addr, const u8 *data,
+ size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct ieee80211_hdr *hdr;
+ size_t len;
+ u8 *pos;
+ int res;
+ int qos = flags & WPA_STA_WMM;
+
+ 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 (qos) {
+ hdr->frame_control |=
+ host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
+ }
+
+ 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 (qos) {
+ /* add an empty QoS header if needed */
+ pos[0] = 0;
+ pos[1] = 0;
+ pos += 2;
+ }
+
+ 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 = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
+ if (res < 0) {
+ wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
+ "failed: %d (%s)",
+ (unsigned long) len, errno, strerror(errno));
+ }
+ os_free(hdr);
+
+ return res;
+}
+
+
+static u32 sta_flags_nl80211(int flags)
+{
+ u32 f = 0;
+
+ if (flags & WPA_STA_AUTHORIZED)
+ f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
+ if (flags & WPA_STA_WMM)
+ f |= BIT(NL80211_STA_FLAG_WME);
+ if (flags & WPA_STA_SHORT_PREAMBLE)
+ f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
+ if (flags & WPA_STA_MFP)
+ f |= BIT(NL80211_STA_FLAG_MFP);
+
+ return f;
+}
+
+
+static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
+ int total_flags,
+ int flags_or, int flags_and)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg, *flags = NULL;
+ struct nl80211_sta_flag_update upd;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ flags = nlmsg_alloc();
+ if (!flags) {
+ nlmsg_free(msg);
+ return -ENOMEM;
+ }
+
+ 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(bss->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ /*
+ * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
+ * can be removed eventually.
+ */
+ if (total_flags & WPA_STA_AUTHORIZED)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
+
+ if (total_flags & WPA_STA_WMM)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
+
+ if (total_flags & WPA_STA_SHORT_PREAMBLE)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
+
+ if (total_flags & WPA_STA_MFP)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
+
+ if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
+ goto nla_put_failure;
+
+ os_memset(&upd, 0, sizeof(upd));
+ upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
+ upd.set = sta_flags_nl80211(flags_or);
+ NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
+
+ nlmsg_free(flags);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ nlmsg_free(flags);
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ if (params->p2p)
+ wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
+ "group (GO)");
+ if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) ||
+ wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
+ nl80211_remove_monitor_interface(drv);
+ return -1;
+ }
+
+ /* TODO: setup monitor interface (and add code somewhere to remove this
+ * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
+
+ return 0;
+}
+
+
+static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
+{
+ struct nl_msg *msg;
+ int ret = -1;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_LEAVE_IBSS, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ struct nl_msg *msg;
+ int ret = -1;
+ int count = 0;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
+
+ if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) {
+ wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
+ "IBSS mode");
+ return -1;
+ }
+
+retry:
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_JOIN_IBSS, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+
+ if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
+ goto nla_put_failure;
+
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ os_memcpy(drv->ssid, params->ssid, params->ssid_len);
+ drv->ssid_len = params->ssid_len;
+
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+
+ ret = nl80211_set_conn_keys(params, msg);
+ if (ret)
+ goto nla_put_failure;
+
+ if (params->wpa_ie) {
+ wpa_hexdump(MSG_DEBUG,
+ " * Extra IEs for Beacon/Probe Response frames",
+ params->wpa_ie, params->wpa_ie_len);
+ NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
+ params->wpa_ie);
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
+ ret, strerror(-ret));
+ count++;
+ if (ret == -EALREADY && count == 1) {
+ wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
+ "forced leave");
+ nl80211_leave_ibss(drv);
+ nlmsg_free(msg);
+ goto retry;
+ }
+
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_connect(
+ struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ struct nl_msg *msg;
+ enum nl80211_auth_type type;
+ int ret = 0;
+ int algs;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_CONNECT, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ }
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ if (params->ssid_len > sizeof(drv->ssid))
+ goto nla_put_failure;
+ os_memcpy(drv->ssid, params->ssid, params->ssid_len);
+ drv->ssid_len = params->ssid_len;
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
+ if (params->wpa_ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
+ params->wpa_ie);
+
+ algs = 0;
+ if (params->auth_alg & WPA_AUTH_ALG_OPEN)
+ algs++;
+ if (params->auth_alg & WPA_AUTH_ALG_SHARED)
+ algs++;
+ if (params->auth_alg & WPA_AUTH_ALG_LEAP)
+ algs++;
+ if (algs > 1) {
+ wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
+ "selection");
+ goto skip_auth_type;
+ }
+
+ if (params->auth_alg & WPA_AUTH_ALG_OPEN)
+ type = NL80211_AUTHTYPE_OPEN_SYSTEM;
+ else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
+ type = NL80211_AUTHTYPE_SHARED_KEY;
+ else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
+ type = NL80211_AUTHTYPE_NETWORK_EAP;
+ else if (params->auth_alg & WPA_AUTH_ALG_FT)
+ type = NL80211_AUTHTYPE_FT;
+ else
+ goto nla_put_failure;
+
+ wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
+ NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
+
+skip_auth_type:
+ if (params->wpa_ie && params->wpa_ie_len) {
+ enum nl80211_wpa_versions ver;
+
+ if (params->wpa_ie[0] == WLAN_EID_RSN)
+ ver = NL80211_WPA_VERSION_2;
+ else
+ ver = NL80211_WPA_VERSION_1;
+
+ wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
+ NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
+ }
+
+ if (params->pairwise_suite != CIPHER_NONE) {
+ int cipher;
+
+ switch (params->pairwise_suite) {
+ case CIPHER_WEP40:
+ cipher = WLAN_CIPHER_SUITE_WEP40;
+ break;
+ case CIPHER_WEP104:
+ cipher = WLAN_CIPHER_SUITE_WEP104;
+ break;
+ case CIPHER_CCMP:
+ cipher = WLAN_CIPHER_SUITE_CCMP;
+ break;
+ case CIPHER_TKIP:
+ default:
+ cipher = WLAN_CIPHER_SUITE_TKIP;
+ break;
+ }
+ NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
+ }
+
+ if (params->group_suite != CIPHER_NONE) {
+ int cipher;
+
+ switch (params->group_suite) {
+ case CIPHER_WEP40:
+ cipher = WLAN_CIPHER_SUITE_WEP40;
+ break;
+ case CIPHER_WEP104:
+ cipher = WLAN_CIPHER_SUITE_WEP104;
+ break;
+ case CIPHER_CCMP:
+ cipher = WLAN_CIPHER_SUITE_CCMP;
+ break;
+ case CIPHER_TKIP:
+ default:
+ cipher = WLAN_CIPHER_SUITE_TKIP;
+ break;
+ }
+ NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
+ }
+
+ if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
+ params->key_mgmt_suite == KEY_MGMT_PSK) {
+ int mgmt = WLAN_AKM_SUITE_PSK;
+
+ switch (params->key_mgmt_suite) {
+ case KEY_MGMT_802_1X:
+ mgmt = WLAN_AKM_SUITE_8021X;
+ break;
+ case KEY_MGMT_PSK:
+ default:
+ mgmt = WLAN_AKM_SUITE_PSK;
+ break;
+ }
+ NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
+ }
+
+ ret = nl80211_set_conn_keys(params, msg);
+ if (ret)
+ goto nla_put_failure;
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+
+}
+
+
+static int wpa_driver_nl80211_associate(
+ void *priv, struct wpa_driver_associate_params *params)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret = -1;
+ struct nl_msg *msg;
+
+ if (params->mode == IEEE80211_MODE_AP)
+ return wpa_driver_nl80211_ap(drv, params);
+
+ if (params->mode == IEEE80211_MODE_IBSS)
+ return wpa_driver_nl80211_ibss(drv, params);
+
+ if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
+ if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0)
+ return -1;
+ return wpa_driver_nl80211_connect(drv, params);
+ }
+
+ drv->associated = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
+ drv->ifindex);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_ASSOCIATE, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ drv->assoc_freq = params->freq;
+ } else
+ drv->assoc_freq = 0;
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ if (params->ssid_len > sizeof(drv->ssid))
+ goto nla_put_failure;
+ os_memcpy(drv->ssid, params->ssid, params->ssid_len);
+ drv->ssid_len = params->ssid_len;
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
+ if (params->wpa_ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
+ params->wpa_ie);
+
+ if (params->pairwise_suite != CIPHER_NONE) {
+ int cipher;
+
+ switch (params->pairwise_suite) {
+ case CIPHER_WEP40:
+ cipher = WLAN_CIPHER_SUITE_WEP40;
+ break;
+ case CIPHER_WEP104:
+ cipher = WLAN_CIPHER_SUITE_WEP104;
+ break;
+ case CIPHER_CCMP:
+ cipher = WLAN_CIPHER_SUITE_CCMP;
+ break;
+ case CIPHER_TKIP:
+ default:
+ cipher = WLAN_CIPHER_SUITE_TKIP;
+ break;
+ }
+ wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
+ NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
+ }
+
+ if (params->group_suite != CIPHER_NONE) {
+ int cipher;
+
+ switch (params->group_suite) {
+ case CIPHER_WEP40:
+ cipher = WLAN_CIPHER_SUITE_WEP40;
+ break;
+ case CIPHER_WEP104:
+ cipher = WLAN_CIPHER_SUITE_WEP104;
+ break;
+ case CIPHER_CCMP:
+ cipher = WLAN_CIPHER_SUITE_CCMP;
+ break;
+ case CIPHER_TKIP:
+ default:
+ cipher = WLAN_CIPHER_SUITE_TKIP;
+ break;
+ }
+ wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
+ NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
+ }
+
+#ifdef CONFIG_IEEE80211W
+ if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
+ NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
+#endif /* CONFIG_IEEE80211W */
+
+ NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
+
+ if (params->prev_bssid) {
+ wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
+ MAC2STR(params->prev_bssid));
+ NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
+ params->prev_bssid);
+ }
+
+ if (params->p2p)
+ wpa_printf(MSG_DEBUG, " * P2P group");
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ nl80211_dump_scan(drv);
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Association request send "
+ "successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
+ int ifindex, int mode)
+{
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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, ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+nla_put_failure:
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
+ " %d (%s)", ifindex, mode, ret, strerror(-ret));
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_set_mode(void *priv, int mode)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret = -1;
+ int nlmode;
+ int i;
+
+ switch (mode) {
+ case 0:
+ nlmode = NL80211_IFTYPE_STATION;
+ break;
+ case 1:
+ nlmode = NL80211_IFTYPE_ADHOC;
+ break;
+ case 2:
+ nlmode = NL80211_IFTYPE_AP;
+ break;
+ default:
+ return -1;
+ }
+
+ if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
+ drv->nlmode = nlmode;
+ ret = 0;
+ goto done;
+ }
+
+ if (nlmode == drv->nlmode) {
+ wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
+ "requested mode - ignore error");
+ ret = 0;
+ goto done; /* Already in the requested mode */
+ }
+
+ /* mac80211 doesn't allow mode changes while the device is up, so
+ * take the device down, try to set the mode again, and bring the
+ * device back up.
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
+ "interface down");
+ for (i = 0; i < 10; i++) {
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) ==
+ 0) {
+ /* Try to set the mode again while the interface is
+ * down */
+ ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname,
+ 1))
+ ret = -1;
+ if (!ret)
+ break;
+ } else
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
+ "interface down");
+ os_sleep(0, 100000);
+ }
+
+ if (!ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
+ "interface is down");
+ drv->nlmode = nlmode;
+ }
+
+done:
+ if (!ret && nlmode == NL80211_IFTYPE_AP) {
+ /* Setup additional AP mode functionality if needed */
+ if (drv->monitor_ifidx < 0 &&
+ nl80211_create_monitor_interface(drv))
+ return -1;
+ } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
+ /* Remove additional AP mode functionality */
+ nl80211_remove_monitor_interface(drv);
+ bss->beacon_set = 0;
+ }
+
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
+ "from %d failed", nlmode, drv->nlmode);
+
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_get_capa(void *priv,
+ struct wpa_driver_capa *capa)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (!drv->has_capability)
+ return -1;
+ os_memcpy(capa, &drv->capa, sizeof(*capa));
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_set_operstate(void *priv, int state)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+
+ wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
+ __func__, drv->operstate, state, state ? "UP" : "DORMANT");
+ drv->operstate = state;
+ return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
+ state ? IF_OPER_UP : IF_OPER_DORMANT);
+}
+
+
+static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ struct nl80211_sta_flag_update upd;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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(bss->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
+
+ os_memset(&upd, 0, sizeof(upd));
+ upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
+ if (authorized)
+ upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
+ NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+#ifdef HOSTAPD
+
+static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+ int *old;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
+ ifidx);
+ for (i = 0; i < drv->num_if_indices; i++) {
+ if (drv->if_indices[i] == 0) {
+ drv->if_indices[i] = ifidx;
+ return;
+ }
+ }
+
+ if (drv->if_indices != drv->default_if_indices)
+ old = drv->if_indices;
+ else
+ old = NULL;
+
+ drv->if_indices = os_realloc(old,
+ sizeof(int) * (drv->num_if_indices + 1));
+ if (!drv->if_indices) {
+ if (!old)
+ drv->if_indices = drv->default_if_indices;
+ else
+ drv->if_indices = old;
+ wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
+ "interfaces");
+ wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
+ return;
+ } else if (!old)
+ os_memcpy(drv->if_indices, drv->default_if_indices,
+ sizeof(drv->default_if_indices));
+ drv->if_indices[drv->num_if_indices] = ifidx;
+ drv->num_if_indices++;
+}
+
+
+static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+
+ for (i = 0; i < drv->num_if_indices; i++) {
+ if (drv->if_indices[i] == ifidx) {
+ drv->if_indices[i] = 0;
+ break;
+ }
+ }
+}
+
+
+static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+
+ for (i = 0; i < drv->num_if_indices; i++)
+ if (drv->if_indices[i] == ifidx)
+ return 1;
+
+ return 0;
+}
+
+
+static inline int min_int(int a, int b)
+{
+ if (a < b)
+ return a;
+ return b;
+}
+
+
+static int get_key_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ /*
+ * TODO: validate the key index and mac address!
+ * Otherwise, there's a race condition as soon as
+ * the kernel starts sending key notifications.
+ */
+
+ if (tb[NL80211_ATTR_KEY_SEQ])
+ memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
+ return NL_SKIP;
+}
+
+
+static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
+ int idx, u8 *seq)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_KEY, 0);
+
+ if (addr)
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
+
+ memset(seq, 0, 6);
+
+ return send_and_recv_msgs(drv, msg, get_key_handler, seq);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
+ int mode)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ u8 rates[NL80211_MAX_SUPP_RATES];
+ u8 rates_len = 0;
+ int i;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
+
+ for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
+ rates[rates_len++] = basic_rates[i] / 5;
+
+ NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+#endif /* HOSTAPD */
+
+
+/* Set kernel driver on given frequency (MHz) */
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
+ freq->sec_channel_offset);
+}
+
+
+#ifdef HOSTAPD
+
+static int i802_set_rts(void *priv, int rts)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+ u32 val;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ if (rts >= 2347)
+ val = (u32) -1;
+ else
+ val = rts;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_WIPHY, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+nla_put_failure:
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
+ "%d (%s)", rts, ret, strerror(-ret));
+ return ret;
+}
+
+
+static int i802_set_frag(void *priv, int frag)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+ u32 val;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ if (frag >= 2346)
+ val = (u32) -1;
+ else
+ val = frag;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_WIPHY, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+nla_put_failure:
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
+ "%d: %d (%s)", frag, ret, strerror(-ret));
+ return ret;
+}
+
+
+static int i802_flush(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ 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_DEL_STATION, 0);
+
+ /*
+ * XXX: FIX! this needs to flush all VLANs too
+ */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(bss->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+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_INFO_MAX + 1];
+ static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
+ [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_TX_PACKETS] = { .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_INFO]) {
+ wpa_printf(MSG_DEBUG, "sta stats missing!");
+ return NL_SKIP;
+ }
+ if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
+ tb[NL80211_ATTR_STA_INFO],
+ stats_policy)) {
+ wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
+ return NL_SKIP;
+ }
+
+ if (stats[NL80211_STA_INFO_INACTIVE_TIME])
+ data->inactive_msec =
+ nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
+ if (stats[NL80211_STA_INFO_RX_BYTES])
+ data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
+ if (stats[NL80211_STA_INFO_TX_BYTES])
+ data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
+ if (stats[NL80211_STA_INFO_RX_PACKETS])
+ data->rx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
+ if (stats[NL80211_STA_INFO_TX_PACKETS])
+ data->tx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
+
+ return NL_SKIP;
+}
+
+static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
+ const u8 *addr)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+
+ os_memset(data, 0, sizeof(*data));
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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(bss->ifname));
+
+ return send_and_recv_msgs(drv, msg, get_sta_handler, data);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
+ int cw_min, int cw_max, int burst_time)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ struct nlattr *txq, *params;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
+
+ txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
+ if (!txq)
+ goto nla_put_failure;
+
+ /* We are only sending parameters for a single TXQ at a time */
+ params = nla_nest_start(msg, 1);
+ if (!params)
+ goto nla_put_failure;
+
+ switch (queue) {
+ case 0:
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
+ break;
+ case 1:
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
+ break;
+ case 2:
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
+ break;
+ case 3:
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
+ break;
+ }
+ /* Burst time is configured in units of 0.1 msec and TXOP parameter in
+ * 32 usec, so need to convert the value here. */
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
+
+ nla_nest_end(msg, params);
+
+ nla_nest_end(msg, txq);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return 0;
+ nla_put_failure:
+ return -1;
+}
+
+
+static int i802_set_bss(void *priv, int cts, int preamble, int slot,
+ int ht_opmode)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
+
+ if (cts >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
+ if (preamble >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
+ if (slot >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
+ if (ht_opmode >= 0)
+ NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_cts_protect(void *priv, int value)
+{
+ return i802_set_bss(priv, value, -1, -1, -1);
+}
+
+
+static int i802_set_preamble(void *priv, int value)
+{
+ return i802_set_bss(priv, -1, value, -1, -1);
+}
+
+
+static int i802_set_short_slot_time(void *priv, int value)
+{
+ return i802_set_bss(priv, -1, -1, value, -1);
+}
+
+
+static int i802_set_sta_vlan(void *priv, const u8 *addr,
+ const char *ifname, int vlan_id)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ 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(bss->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
+ if_nametoindex(ifname));
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
+ MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
+ MAC2STR(addr), ifname, vlan_id, ret,
+ strerror(-ret));
+ }
+ nla_put_failure:
+ return ret;
+}
+
+
+static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
+ const char *bridge_ifname)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ char name[IFNAMSIZ + 1];
+
+ os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
+ wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
+ " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
+ if (val) {
+ if (!if_nametoindex(name)) {
+ if (nl80211_create_iface(drv, name,
+ NL80211_IFTYPE_AP_VLAN,
+ NULL, 1) < 0)
+ return -1;
+ if (bridge_ifname &&
+ linux_br_add_if(drv->ioctl_sock, bridge_ifname,
+ name) < 0)
+ return -1;
+ }
+ linux_set_iface_flags(drv->ioctl_sock, name, 1);
+ return i802_set_sta_vlan(priv, addr, name, 0);
+ } else {
+ i802_set_sta_vlan(priv, addr, bss->ifname, 0);
+ return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
+ name);
+ }
+}
+
+
+static int i802_set_ht_params(void *priv, const u8 *ht_capab,
+ size_t ht_capab_len, const u8 *ht_oper,
+ size_t ht_oper_len)
+{
+ if (ht_oper_len >= 6) {
+ /* ht opmode uses 16bit in octet 5 & 6 */
+ u16 ht_opmode = le_to_host16(((u16 *) ht_oper)[2]);
+ return i802_set_bss(priv, -1, -1, -1, ht_opmode);
+ } else
+ return -1;
+}
+
+
+static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ 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))
+ drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
+}
+
+
+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;
+}
+
+#endif /* HOSTAPD */
+
+#if defined(HOSTAPD) || defined(CONFIG_AP)
+
+static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
+ int reason)
+{
+ struct i802_bss *bss = 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, own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, own_addr, ETH_ALEN);
+ mgmt.u.deauth.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.deauth));
+}
+
+
+static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
+ int reason)
+{
+ struct i802_bss *bss = 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, own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, own_addr, ETH_ALEN);
+ mgmt.u.disassoc.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.disassoc));
+}
+
+#endif /* HOSTAPD || CONFIG_AP */
+
+#ifdef HOSTAPD
+
+static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
+ struct i802_bss *bss,
+ const char *brname, const char *ifname)
+{
+ int ifindex;
+ char in_br[IFNAMSIZ];
+
+ os_strlcpy(bss->brname, brname, IFNAMSIZ);
+ ifindex = if_nametoindex(brname);
+ if (ifindex == 0) {
+ /*
+ * Bridge was configured, but the bridge device does
+ * not exist. Try to add it now.
+ */
+ if (linux_br_add(drv->ioctl_sock, brname) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
+ "bridge interface %s: %s",
+ brname, strerror(errno));
+ return -1;
+ }
+ bss->added_bridge = 1;
+ add_ifidx(drv, if_nametoindex(brname));
+ }
+
+ if (linux_br_get(in_br, ifname) == 0) {
+ if (os_strcmp(in_br, brname) == 0)
+ return 0; /* already in the bridge */
+
+ wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
+ "bridge %s", ifname, in_br);
+ if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to "
+ "remove interface %s from bridge "
+ "%s: %s",
+ ifname, brname, strerror(errno));
+ return -1;
+ }
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
+ ifname, brname);
+ if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
+ "into bridge %s: %s",
+ ifname, brname, strerror(errno));
+ return -1;
+ }
+ bss->added_if_into_bridge = 1;
+
+ return 0;
+}
+
+
+static void *i802_init(struct hostapd_data *hapd,
+ struct wpa_init_params *params)
+{
+ struct wpa_driver_nl80211_data *drv;
+ struct i802_bss *bss;
+ size_t i;
+ char brname[IFNAMSIZ];
+ int ifindex, br_ifindex;
+ int br_added = 0;
+
+ bss = wpa_driver_nl80211_init(hapd, params->ifname, NULL);
+ if (bss == NULL)
+ return NULL;
+
+ drv = bss->drv;
+ drv->nlmode = NL80211_IFTYPE_AP;
+ if (linux_br_get(brname, params->ifname) == 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
+ params->ifname, brname);
+ br_ifindex = if_nametoindex(brname);
+ } else {
+ brname[0] = '\0';
+ br_ifindex = 0;
+ }
+
+ drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
+ drv->if_indices = drv->default_if_indices;
+ for (i = 0; i < params->num_bridge; i++) {
+ if (params->bridge[i]) {
+ ifindex = if_nametoindex(params->bridge[i]);
+ if (ifindex)
+ add_ifidx(drv, ifindex);
+ if (ifindex == br_ifindex)
+ br_added = 1;
+ }
+ }
+ if (!br_added && br_ifindex &&
+ (params->num_bridge == 0 || !params->bridge[0]))
+ add_ifidx(drv, br_ifindex);
+
+ /* start listening for EAPOL on the default AP interface */
+ add_ifidx(drv, drv->ifindex);
+
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
+ goto failed;
+
+ if (params->bssid) {
+ if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
+ params->bssid))
+ goto failed;
+ }
+
+ if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
+ "into AP mode", bss->ifname);
+ goto failed;
+ }
+
+ if (params->num_bridge && params->bridge[0] &&
+ i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
+ goto failed;
+
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
+ goto failed;
+
+ 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)");
+ goto failed;
+ }
+
+ if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
+ {
+ printf("Could not register read socket for eapol\n");
+ goto failed;
+ }
+
+ if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
+ goto failed;
+
+ return bss;
+
+failed:
+ nl80211_remove_monitor_interface(drv);
+ rfkill_deinit(drv->rfkill);
+ netlink_deinit(drv->netlink);
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl80211_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
+ eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
+
+ os_free(drv);
+ return NULL;
+}
+
+
+static void i802_deinit(void *priv)
+{
+ wpa_driver_nl80211_deinit(priv);
+}
+
+#endif /* HOSTAPD */
+
+
+static enum nl80211_iftype wpa_driver_nl80211_if_type(
+ enum wpa_driver_if_type type)
+{
+ switch (type) {
+ case WPA_IF_STATION:
+ return NL80211_IFTYPE_STATION;
+ case WPA_IF_P2P_CLIENT:
+ case WPA_IF_P2P_GROUP:
+ return NL80211_IFTYPE_P2P_CLIENT;
+ case WPA_IF_AP_VLAN:
+ return NL80211_IFTYPE_AP_VLAN;
+ case WPA_IF_AP_BSS:
+ return NL80211_IFTYPE_AP;
+ case WPA_IF_P2P_GO:
+ return NL80211_IFTYPE_P2P_GO;
+ }
+ return -1;
+}
+
+
+#ifdef CONFIG_P2P
+
+static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
+{
+ struct wpa_driver_nl80211_data *drv;
+ dl_list_for_each(drv, &global->interfaces,
+ struct wpa_driver_nl80211_data, list) {
+ if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+
+static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
+ u8 *new_addr)
+{
+ unsigned int idx;
+
+ if (!drv->global)
+ return -1;
+
+ os_memcpy(new_addr, drv->addr, ETH_ALEN);
+ for (idx = 0; idx < 64; idx++) {
+ new_addr[0] = drv->addr[0] | 0x02;
+ new_addr[0] ^= idx << 2;
+ if (!nl80211_addr_in_use(drv->global, new_addr))
+ break;
+ }
+ if (idx == 64)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
+ MACSTR, MAC2STR(new_addr));
+
+ return 0;
+}
+
+#endif /* CONFIG_P2P */
+
+
+static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
+ const char *ifname, const u8 *addr,
+ void *bss_ctx, void **drv_priv,
+ char *force_ifname, u8 *if_addr,
+ const char *bridge)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ifidx;
+#ifdef HOSTAPD
+ struct i802_bss *new_bss = NULL;
+
+ if (type == WPA_IF_AP_BSS) {
+ new_bss = os_zalloc(sizeof(*new_bss));
+ if (new_bss == NULL)
+ return -1;
+ }
+#endif /* HOSTAPD */
+
+ if (addr)
+ os_memcpy(if_addr, addr, ETH_ALEN);
+ ifidx = nl80211_create_iface(drv, ifname,
+ wpa_driver_nl80211_if_type(type), addr,
+ 0);
+ if (ifidx < 0) {
+#ifdef HOSTAPD
+ os_free(new_bss);
+#endif /* HOSTAPD */
+ return -1;
+ }
+
+ if (!addr &&
+ linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+
+#ifdef CONFIG_P2P
+ if (!addr &&
+ (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
+ type == WPA_IF_P2P_GO)) {
+ /* Enforce unique P2P Interface Address */
+ u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
+
+ if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr)
+ < 0 ||
+ linux_get_ifhwaddr(drv->ioctl_sock, ifname, new_addr) < 0)
+ {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+ if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
+ "for P2P group interface");
+ if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+ if (linux_set_ifhwaddr(drv->ioctl_sock, ifname,
+ new_addr) < 0) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+ os_memcpy(if_addr, new_addr, ETH_ALEN);
+ }
+ }
+#endif /* CONFIG_P2P */
+
+#ifdef HOSTAPD
+ if (bridge &&
+ i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
+ "interface %s to a bridge %s", ifname, bridge);
+ nl80211_remove_iface(drv, ifidx);
+ os_free(new_bss);
+ return -1;
+ }
+
+ if (type == WPA_IF_AP_BSS) {
+ if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
+ nl80211_remove_iface(drv, ifidx);
+ os_free(new_bss);
+ return -1;
+ }
+ os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
+ new_bss->ifindex = ifidx;
+ new_bss->drv = drv;
+ new_bss->next = drv->first_bss.next;
+ drv->first_bss.next = new_bss;
+ if (drv_priv)
+ *drv_priv = new_bss;
+ }
+#endif /* HOSTAPD */
+
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_if_remove(void *priv,
+ enum wpa_driver_if_type type,
+ const char *ifname)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ifindex = if_nametoindex(ifname);
+
+ wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
+ __func__, type, ifname, ifindex);
+ if (ifindex <= 0)
+ return -1;
+
+#ifdef HOSTAPD
+ if (bss->added_if_into_bridge) {
+ if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
+ < 0)
+ wpa_printf(MSG_INFO, "nl80211: Failed to remove "
+ "interface %s from bridge %s: %s",
+ bss->ifname, bss->brname, strerror(errno));
+ }
+ if (bss->added_bridge) {
+ if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
+ wpa_printf(MSG_INFO, "nl80211: Failed to remove "
+ "bridge %s: %s",
+ bss->brname, strerror(errno));
+ }
+#endif /* HOSTAPD */
+
+ nl80211_remove_iface(drv, ifindex);
+
+#ifdef HOSTAPD
+ if (type != WPA_IF_AP_BSS)
+ return 0;
+
+ if (bss != &drv->first_bss) {
+ struct i802_bss *tbss;
+
+ for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
+ if (tbss->next == bss) {
+ tbss->next = bss->next;
+ os_free(bss);
+ bss = NULL;
+ break;
+ }
+ }
+ if (bss)
+ wpa_printf(MSG_INFO, "nl80211: %s - could not find "
+ "BSS %p in the list", __func__, bss);
+ }
+#endif /* HOSTAPD */
+
+ return 0;
+}
+
+
+static int cookie_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ u64 *cookie = arg;
+ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+ if (tb[NL80211_ATTR_COOKIE])
+ *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
+ return NL_SKIP;
+}
+
+
+static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
+ unsigned int freq, unsigned int wait,
+ const u8 *buf, size_t buf_len,
+ u64 *cookie_out)
+{
+ struct nl_msg *msg;
+ u64 cookie;
+ int ret = -1;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_FRAME, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
+ NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
+ NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
+
+ cookie = 0;
+ ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
+ "cookie 0x%llx", (long long unsigned int) cookie);
+
+ if (cookie_out)
+ *cookie_out = cookie;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
+ unsigned int wait_time,
+ const u8 *dst, const u8 *src,
+ const u8 *bssid,
+ const u8 *data, size_t data_len)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret = -1;
+ u8 *buf;
+ struct ieee80211_hdr *hdr;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
+ "wait=%d ms)", drv->ifindex, wait_time);
+
+ buf = os_zalloc(24 + data_len);
+ if (buf == NULL)
+ return ret;
+ os_memcpy(buf + 24, data, data_len);
+ hdr = (struct ieee80211_hdr *) buf;
+ hdr->frame_control =
+ IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
+ os_memcpy(hdr->addr1, dst, ETH_ALEN);
+ os_memcpy(hdr->addr2, src, ETH_ALEN);
+ os_memcpy(hdr->addr3, bssid, ETH_ALEN);
+
+ if (drv->nlmode == NL80211_IFTYPE_AP)
+ ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
+ else
+ ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
+ 24 + data_len,
+ &drv->send_action_cookie);
+
+ os_free(buf);
+ return ret;
+}
+
+
+static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_FRAME_WAIT_CANCEL, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+
+ nla_put_failure:
+ nlmsg_free(msg);
+}
+
+
+static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
+ unsigned int duration)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+ u64 cookie;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_REMAIN_ON_CHANNEL, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
+
+ cookie = 0;
+ ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
+ if (ret == 0) {
+ wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
+ "0x%llx for freq=%u MHz duration=%u",
+ (long long unsigned int) cookie, freq, duration);
+ drv->remain_on_chan_cookie = cookie;
+ return 0;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
+ "(freq=%d duration=%u): %d (%s)",
+ freq, duration, ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+
+ if (!drv->pending_remain_on_chan) {
+ wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
+ "to cancel");
+ return -1;
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
+ "0x%llx",
+ (long long unsigned int) drv->remain_on_chan_cookie);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
+ "%d (%s)", ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+
+ if (drv->nlmode != NL80211_IFTYPE_STATION) {
+ wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only "
+ "allowed in station mode (iftype=%d)",
+ drv->nlmode);
+ return -1;
+ }
+
+ if (!report) {
+ if (drv->nl_handle_preq) {
+ eloop_unregister_read_sock(
+ nl_socket_get_fd(drv->nl_handle_preq));
+ nl_cache_free(drv->nl_cache_preq);
+ nl80211_handle_destroy(drv->nl_handle_preq);
+ drv->nl_handle_preq = NULL;
+ }
+ return 0;
+ }
+
+ if (drv->nl_handle_preq) {
+ wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
+ "already on!");
+ return 0;
+ }
+
+ drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb);
+ if (drv->nl_handle_preq == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate "
+ "netlink callbacks (preq)");
+ goto out_err1;
+ }
+
+ if (genl_connect(drv->nl_handle_preq)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to connect to "
+ "generic netlink (preq)");
+ goto out_err2;
+ return -1;
+ }
+
+#ifdef CONFIG_LIBNL20
+ if (genl_ctrl_alloc_cache(drv->nl_handle_preq,
+ &drv->nl_cache_preq) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache (preq)");
+ goto out_err2;
+ }
+#else /* CONFIG_LIBNL20 */
+ drv->nl_cache_preq = genl_ctrl_alloc_cache(drv->nl_handle_preq);
+ if (drv->nl_cache_preq == NULL) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache (preq)");
+ goto out_err2;
+ }
+#endif /* CONFIG_LIBNL20 */
+
+ if (nl80211_register_frame(drv, drv->nl_handle_preq,
+ (WLAN_FC_TYPE_MGMT << 2) |
+ (WLAN_FC_STYPE_PROBE_REQ << 4),
+ NULL, 0) < 0) {
+ goto out_err3;
+ }
+
+ eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq),
+ wpa_driver_nl80211_event_receive, drv,
+ drv->nl_handle_preq);
+
+ return 0;
+
+ out_err3:
+ nl_cache_free(drv->nl_cache_preq);
+ out_err2:
+ nl80211_handle_destroy(drv->nl_handle_preq);
+ drv->nl_handle_preq = NULL;
+ out_err1:
+ return -1;
+}
+
+
+static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
+ int ifindex, int disabled)
+{
+ struct nl_msg *msg;
+ struct nlattr *bands, *band;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_TX_BITRATE_MASK, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+
+ bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
+ if (!bands)
+ goto nla_put_failure;
+
+ /*
+ * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
+ * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
+ * rates. All 5 GHz rates are left enabled.
+ */
+ band = nla_nest_start(msg, NL80211_BAND_2GHZ);
+ if (!band)
+ goto nla_put_failure;
+ NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
+ "\x0c\x12\x18\x24\x30\x48\x60\x6c");
+ nla_nest_end(msg, band);
+
+ nla_nest_end(msg, bands);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ }
+
+ return ret;
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ drv->disable_11b_rates = disabled;
+ return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
+}
+
+
+static int wpa_driver_nl80211_deinit_ap(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (drv->nlmode != NL80211_IFTYPE_AP)
+ return -1;
+ wpa_driver_nl80211_del_beacon(drv);
+ return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
+}
+
+
+static void wpa_driver_nl80211_resume(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
+ "resume event");
+ }
+}
+
+
+static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
+ const u8 *ies, size_t ies_len)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int ret;
+ u8 *data, *pos;
+ size_t data_len;
+ u8 own_addr[ETH_ALEN];
+
+ if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
+ return -1;
+
+ if (action != 1) {
+ wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
+ "action %d", action);
+ return -1;
+ }
+
+ /*
+ * Action frame payload:
+ * Category[1] = 6 (Fast BSS Transition)
+ * Action[1] = 1 (Fast BSS Transition Request)
+ * STA Address
+ * Target AP Address
+ * FT IEs
+ */
+
+ data_len = 2 + 2 * ETH_ALEN + ies_len;
+ data = os_malloc(data_len);
+ if (data == NULL)
+ return -1;
+ pos = data;
+ *pos++ = 0x06; /* FT Action category */
+ *pos++ = action;
+ os_memcpy(pos, own_addr, ETH_ALEN);
+ pos += ETH_ALEN;
+ os_memcpy(pos, target_ap, ETH_ALEN);
+ pos += ETH_ALEN;
+ os_memcpy(pos, ies, ies_len);
+
+ ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
+ drv->bssid, own_addr, drv->bssid,
+ data, data_len);
+ os_free(data);
+
+ return ret;
+}
+
+
+static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg, *cqm = NULL;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
+ "hysteresis=%d", threshold, hysteresis);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_CQM, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
+
+ cqm = nlmsg_alloc();
+ if (cqm == NULL)
+ return -1;
+
+ NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
+ NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
+ nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return 0;
+ msg = NULL;
+
+nla_put_failure:
+ if (cqm)
+ nlmsg_free(cqm);
+ nlmsg_free(msg);
+ return -1;
+}
+
+
+static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ int res;
+
+ os_memset(si, 0, sizeof(*si));
+ res = nl80211_get_link_signal(drv, si);
+ if (res != 0)
+ return res;
+
+ return nl80211_get_link_noise(drv, si);
+}
+
+
+static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
+ int encrypt)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
+}
+
+
+static int nl80211_set_intra_bss(void *priv, int enabled)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
+ NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, !enabled);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int nl80211_set_param(void *priv, const char *param)
+{
+ wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
+ if (param == NULL)
+ return 0;
+
+#ifdef CONFIG_P2P
+ if (os_strstr(param, "use_p2p_group_interface=1")) {
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
+ "interface");
+ drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
+ drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
+ }
+#endif /* CONFIG_P2P */
+
+ return 0;
+}
+
+
+static void * nl80211_global_init(void)
+{
+ struct nl80211_global *global;
+ global = os_zalloc(sizeof(*global));
+ if (global == NULL)
+ return NULL;
+ dl_list_init(&global->interfaces);
+ return global;
+}
+
+
+static void nl80211_global_deinit(void *priv)
+{
+ struct nl80211_global *global = priv;
+ if (global == NULL)
+ return;
+ if (!dl_list_empty(&global->interfaces)) {
+ wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
+ "nl80211_global_deinit",
+ dl_list_len(&global->interfaces));
+ }
+ os_free(global);
+}
+
+
+static const char * nl80211_get_radio_name(void *priv)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ return drv->phyname;
+}
+
+
+const struct wpa_driver_ops wpa_driver_nl80211_ops = {
+ .name = "nl80211",
+ .desc = "Linux nl80211/cfg80211",
+ .get_bssid = wpa_driver_nl80211_get_bssid,
+ .get_ssid = wpa_driver_nl80211_get_ssid,
+ .set_key = wpa_driver_nl80211_set_key,
+ .scan2 = wpa_driver_nl80211_scan,
+ .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
+ .deauthenticate = wpa_driver_nl80211_deauthenticate,
+ .disassociate = wpa_driver_nl80211_disassociate,
+ .authenticate = wpa_driver_nl80211_authenticate,
+ .associate = wpa_driver_nl80211_associate,
+ .global_init = nl80211_global_init,
+ .global_deinit = nl80211_global_deinit,
+ .init2 = wpa_driver_nl80211_init,
+ .deinit = wpa_driver_nl80211_deinit,
+ .get_capa = wpa_driver_nl80211_get_capa,
+ .set_operstate = wpa_driver_nl80211_set_operstate,
+ .set_supp_port = wpa_driver_nl80211_set_supp_port,
+ .set_country = wpa_driver_nl80211_set_country,
+ .set_beacon = wpa_driver_nl80211_set_beacon,
+ .if_add = wpa_driver_nl80211_if_add,
+ .if_remove = wpa_driver_nl80211_if_remove,
+ .send_mlme = wpa_driver_nl80211_send_mlme,
+ .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
+ .sta_add = wpa_driver_nl80211_sta_add,
+ .sta_remove = wpa_driver_nl80211_sta_remove,
+ .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
+ .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
+#ifdef HOSTAPD
+ .hapd_init = i802_init,
+ .hapd_deinit = i802_deinit,
+ .get_seqnum = i802_get_seqnum,
+ .flush = i802_flush,
+ .read_sta_data = i802_read_sta_data,
+ .get_inact_sec = i802_get_inact_sec,
+ .sta_clear_stats = i802_sta_clear_stats,
+ .set_rts = i802_set_rts,
+ .set_frag = i802_set_frag,
+ .set_rate_sets = i802_set_rate_sets,
+ .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,
+ .set_sta_vlan = i802_set_sta_vlan,
+ .set_wds_sta = i802_set_wds_sta,
+ .set_ht_params = i802_set_ht_params,
+#endif /* HOSTAPD */
+#if defined(HOSTAPD) || defined(CONFIG_AP)
+ .sta_deauth = i802_sta_deauth,
+ .sta_disassoc = i802_sta_disassoc,
+#endif /* HOSTAPD || CONFIG_AP */
+ .set_freq = i802_set_freq,
+ .send_action = wpa_driver_nl80211_send_action,
+ .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
+ .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
+ .cancel_remain_on_channel =
+ wpa_driver_nl80211_cancel_remain_on_channel,
+ .probe_req_report = wpa_driver_nl80211_probe_req_report,
+ .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
+ .deinit_ap = wpa_driver_nl80211_deinit_ap,
+ .resume = wpa_driver_nl80211_resume,
+ .send_ft_action = nl80211_send_ft_action,
+ .signal_monitor = nl80211_signal_monitor,
+ .signal_poll = nl80211_signal_poll,
+ .send_frame = nl80211_send_frame,
+ .set_intra_bss = nl80211_set_intra_bss,
+ .set_param = nl80211_set_param,
+ .get_radio_name = nl80211_get_radio_name,
+};