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gfiber / vendor / opensource / hostap / f782e9374b945b631569c793c51f05d79e6d6179 / . / src / drivers / driver_nl80211.c
blob: 955914827e03c560b1fd164a818f0c27b640799f [file] [log] [blame]
/*
* Driver interaction with Linux nl80211/cfg80211
* Copyright (c) 2002-2015, 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 software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include <sys/types.h>
#include <fcntl.h>
#include <net/if.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/ctrl.h>
#ifdef CONFIG_LIBNL3_ROUTE
#include <netlink/route/neighbour.h>
#endif /* CONFIG_LIBNL3_ROUTE */
#include <linux/rtnetlink.h>
#include <netpacket/packet.h>
#include <linux/errqueue.h>
#include "common.h"
#include "eloop.h"
#include "common/qca-vendor.h"
#include "common/qca-vendor-attr.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "l2_packet/l2_packet.h"
#include "netlink.h"
#include "linux_defines.h"
#include "linux_ioctl.h"
#include "radiotap.h"
#include "radiotap_iter.h"
#include "rfkill.h"
#include "driver_nl80211.h"
#ifndef CONFIG_LIBNL20
/*
* 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 */
#ifdef ANDROID
/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
#undef nl_socket_set_nonblocking
#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
#define genl_ctrl_resolve android_genl_ctrl_resolve
#endif /* ANDROID */
static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
{
struct nl_handle *handle;
handle = nl80211_handle_alloc(cb);
if (handle == NULL) {
wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
"callbacks (%s)", dbg);
return NULL;
}
if (genl_connect(handle)) {
wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
"netlink (%s)", dbg);
nl80211_handle_destroy(handle);
return NULL;
}
return handle;
}
static void nl_destroy_handles(struct nl_handle **handle)
{
if (*handle == NULL)
return;
nl80211_handle_destroy(*handle);
*handle = NULL;
}
#if __WORDSIZE == 64
#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
#else
#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
#endif
static void nl80211_register_eloop_read(struct nl_handle **handle,
eloop_sock_handler handler,
void *eloop_data)
{
#ifdef CONFIG_LIBNL20
/*
* libnl uses a pretty small buffer (32 kB that gets converted to 64 kB)
* by default. It is possible to hit that limit in some cases where
* operations are blocked, e.g., with a burst of Deauthentication frames
* to hostapd and STA entry deletion. Try to increase the buffer to make
* this less likely to occur.
*/
if (nl_socket_set_buffer_size(*handle, 262144, 0) < 0) {
wpa_printf(MSG_DEBUG,
"nl80211: Could not set nl_socket RX buffer size: %s",
strerror(errno));
/* continue anyway with the default (smaller) buffer */
}
#endif /* CONFIG_LIBNL20 */
nl_socket_set_nonblocking(*handle);
eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
eloop_data, *handle);
*handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
}
static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
{
*handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
eloop_unregister_read_sock(nl_socket_get_fd(*handle));
nl_destroy_handles(handle);
}
static void nl80211_global_deinit(void *priv);
static void nl80211_check_global(struct nl80211_global *global);
static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
struct hostapd_freq_params *freq);
static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
const u8 *set_addr, int first,
const char *driver_params);
static int nl80211_send_frame_cmd(struct i802_bss *bss,
unsigned int freq, unsigned int wait,
const u8 *buf, size_t buf_len, u64 *cookie,
int no_cck, int no_ack, int offchanok);
static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
int report);
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 nl80211_set_channel(struct i802_bss *bss,
struct hostapd_freq_params *freq, int set_chan);
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,
int reset_mode);
static int i802_set_iface_flags(struct i802_bss *bss, int up);
static int nl80211_set_param(void *priv, const char *param);
/* Converts nl80211_chan_width to a common format */
enum chan_width convert2width(int width)
{
switch (width) {
case NL80211_CHAN_WIDTH_20_NOHT:
return CHAN_WIDTH_20_NOHT;
case NL80211_CHAN_WIDTH_20:
return CHAN_WIDTH_20;
case NL80211_CHAN_WIDTH_40:
return CHAN_WIDTH_40;
case NL80211_CHAN_WIDTH_80:
return CHAN_WIDTH_80;
case NL80211_CHAN_WIDTH_80P80:
return CHAN_WIDTH_80P80;
case NL80211_CHAN_WIDTH_160:
return CHAN_WIDTH_160;
}
return CHAN_WIDTH_UNKNOWN;
}
int is_ap_interface(enum nl80211_iftype nlmode)
{
return nlmode == NL80211_IFTYPE_AP ||
nlmode == NL80211_IFTYPE_P2P_GO;
}
int is_sta_interface(enum nl80211_iftype nlmode)
{
return nlmode == NL80211_IFTYPE_STATION ||
nlmode == NL80211_IFTYPE_P2P_CLIENT;
}
static int is_p2p_net_interface(enum nl80211_iftype nlmode)
{
return nlmode == NL80211_IFTYPE_P2P_CLIENT ||
nlmode == NL80211_IFTYPE_P2P_GO;
}
struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
int ifindex)
{
struct i802_bss *bss;
for (bss = drv->first_bss; bss; bss = bss->next) {
if (bss->ifindex == ifindex)
return bss;
}
return NULL;
}
static int is_mesh_interface(enum nl80211_iftype nlmode)
{
return nlmode == NL80211_IFTYPE_MESH_POINT;
}
void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
{
if (drv->associated)
os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
drv->associated = 0;
os_memset(drv->bssid, 0, ETH_ALEN);
}
/* 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 void nl80211_nlmsg_clear(struct nl_msg *msg)
{
/*
* Clear nlmsg data, e.g., to make sure key material is not left in
* heap memory for unnecessarily long time.
*/
if (msg) {
struct nlmsghdr *hdr = nlmsg_hdr(msg);
void *data = nlmsg_data(hdr);
/*
* This would use nlmsg_datalen() or the older nlmsg_len() if
* only libnl were to maintain a stable API.. Neither will work
* with all released versions, so just calculate the length
* here.
*/
int len = hdr->nlmsg_len - NLMSG_HDRLEN;
os_memset(data, 0, len);
}
}
static int send_and_recv(struct nl80211_global *global,
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;
if (!msg)
return -ENOMEM;
cb = nl_cb_clone(global->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) {
int res = nl_recvmsgs(nl_handle, cb);
if (res < 0) {
wpa_printf(MSG_INFO,
"nl80211: %s->nl_recvmsgs failed: %d",
__func__, res);
}
}
out:
nl_cb_put(cb);
if (!valid_handler && valid_data == (void *) -1)
nl80211_nlmsg_clear(msg);
nlmsg_free(msg);
return err;
}
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->global, drv->global->nl, 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 nl80211_global *global,
const char *family, const char *group)
{
struct nl_msg *msg;
int ret;
struct family_data res = { group, -ENOENT };
msg = nlmsg_alloc();
if (!msg)
return -ENOMEM;
if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
0, 0, CTRL_CMD_GETFAMILY, 0) ||
nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) {
nlmsg_free(msg);
return -1;
}
ret = send_and_recv(global, global->nl, msg, family_handler, &res);
if (ret == 0)
ret = res.id;
return ret;
}
void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
struct nl_msg *msg, int flags, uint8_t cmd)
{
return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
0, flags, cmd, 0);
}
static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
{
if (bss->wdev_id_set)
return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
}
struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd)
{
struct nl_msg *msg;
msg = nlmsg_alloc();
if (!msg)
return NULL;
if (!nl80211_cmd(bss->drv, msg, flags, cmd) ||
nl80211_set_iface_id(msg, bss) < 0) {
nlmsg_free(msg);
return NULL;
}
return msg;
}
static struct nl_msg *
nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex,
int flags, uint8_t cmd)
{
struct nl_msg *msg;
msg = nlmsg_alloc();
if (!msg)
return NULL;
if (!nl80211_cmd(drv, msg, flags, cmd) ||
nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) {
nlmsg_free(msg);
return NULL;
}
return msg;
}
struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
uint8_t cmd)
{
return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd);
}
struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd)
{
return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd);
}
struct wiphy_idx_data {
int wiphy_idx;
enum nl80211_iftype nlmode;
u8 *macaddr;
};
static int netdev_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_idx_data *info = arg;
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (tb[NL80211_ATTR_WIPHY])
info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
if (tb[NL80211_ATTR_IFTYPE])
info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
if (tb[NL80211_ATTR_MAC] && info->macaddr)
os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
ETH_ALEN);
return NL_SKIP;
}
int nl80211_get_wiphy_index(struct i802_bss *bss)
{
struct nl_msg *msg;
struct wiphy_idx_data data = {
.wiphy_idx = -1,
.macaddr = NULL,
};
if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
return -1;
if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
return data.wiphy_idx;
return -1;
}
static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
{
struct nl_msg *msg;
struct wiphy_idx_data data = {
.nlmode = NL80211_IFTYPE_UNSPECIFIED,
.macaddr = NULL,
};
if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
return NL80211_IFTYPE_UNSPECIFIED;
if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
return data.nlmode;
return NL80211_IFTYPE_UNSPECIFIED;
}
static int nl80211_get_macaddr(struct i802_bss *bss)
{
struct nl_msg *msg;
struct wiphy_idx_data data = {
.macaddr = bss->addr,
};
if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
return -1;
return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
}
static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
struct nl80211_wiphy_data *w)
{
struct nl_msg *msg;
int ret;
msg = nlmsg_alloc();
if (!msg)
return -1;
if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) ||
nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) {
nlmsg_free(msg);
return -1;
}
ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
if (ret) {
wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
"failed: ret=%d (%s)",
ret, strerror(-ret));
}
return ret;
}
static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
{
struct nl80211_wiphy_data *w = eloop_ctx;
int res;
wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
res = nl_recvmsgs(handle, w->nl_cb);
if (res < 0) {
wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
__func__, res);
}
}
static int process_beacon_event(struct nl_msg *msg, void *arg)
{
struct nl80211_wiphy_data *w = arg;
struct wpa_driver_nl80211_data *drv;
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
struct nlattr *tb[NL80211_ATTR_MAX + 1];
union wpa_event_data event;
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (gnlh->cmd != NL80211_CMD_FRAME) {
wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
gnlh->cmd);
return NL_SKIP;
}
if (!tb[NL80211_ATTR_FRAME])
return NL_SKIP;
dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
wiphy_list) {
os_memset(&event, 0, sizeof(event));
event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
}
return NL_SKIP;
}
static struct nl80211_wiphy_data *
nl80211_get_wiphy_data_ap(struct i802_bss *bss)
{
static DEFINE_DL_LIST(nl80211_wiphys);
struct nl80211_wiphy_data *w;
int wiphy_idx, found = 0;
struct i802_bss *tmp_bss;
if (bss->wiphy_data != NULL)
return bss->wiphy_data;
wiphy_idx = nl80211_get_wiphy_index(bss);
dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
if (w->wiphy_idx == wiphy_idx)
goto add;
}
/* alloc new one */
w = os_zalloc(sizeof(*w));
if (w == NULL)
return NULL;
w->wiphy_idx = wiphy_idx;
dl_list_init(&w->bsss);
dl_list_init(&w->drvs);
w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!w->nl_cb) {
os_free(w);
return NULL;
}
nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
w);
w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
"wiphy beacons");
if (w->nl_beacons == NULL) {
os_free(w);
return NULL;
}
if (nl80211_register_beacons(bss->drv, w)) {
nl_destroy_handles(&w->nl_beacons);
os_free(w);
return NULL;
}
nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
dl_list_add(&nl80211_wiphys, &w->list);
add:
/* drv entry for this bss already there? */
dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
if (tmp_bss->drv == bss->drv) {
found = 1;
break;
}
}
/* if not add it */
if (!found)
dl_list_add(&w->drvs, &bss->drv->wiphy_list);
dl_list_add(&w->bsss, &bss->wiphy_list);
bss->wiphy_data = w;
return w;
}
static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
{
struct nl80211_wiphy_data *w = bss->wiphy_data;
struct i802_bss *tmp_bss;
int found = 0;
if (w == NULL)
return;
bss->wiphy_data = NULL;
dl_list_del(&bss->wiphy_list);
/* still any for this drv present? */
dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
if (tmp_bss->drv == bss->drv) {
found = 1;
break;
}
}
/* if not remove it */
if (!found)
dl_list_del(&bss->drv->wiphy_list);
if (!dl_list_empty(&w->bsss))
return;
nl80211_destroy_eloop_handle(&w->nl_beacons);
nl_cb_put(w->nl_cb);
dl_list_del(&w->list);
os_free(w);
}
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_newlink(
struct wpa_driver_nl80211_data *drv, const char *ifname)
{
union wpa_event_data event;
if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
if (if_nametoindex(drv->first_bss->ifname) == 0) {
wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
drv->first_bss->ifname);
return;
}
if (!drv->if_removed)
return;
wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
drv->first_bss->ifname);
drv->if_removed = 0;
}
os_memset(&event, 0, sizeof(event));
os_strlcpy(event.interface_status.ifname, ifname,
sizeof(event.interface_status.ifname));
event.interface_status.ievent = EVENT_INTERFACE_ADDED;
wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
}
static void wpa_driver_nl80211_event_dellink(
struct wpa_driver_nl80211_data *drv, const char *ifname)
{
union wpa_event_data event;
if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
if (drv->if_removed) {
wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
ifname);
return;
}
wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
ifname);
drv->if_removed = 1;
} else {
wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
ifname);
}
os_memset(&event, 0, sizeof(event));
os_strlcpy(event.interface_status.ifname, ifname,
sizeof(event.interface_status.ifname));
event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
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)) {
nl80211_check_global(drv->global);
wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
"interface");
wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL);
return 1;
}
return 0;
}
static struct wpa_driver_nl80211_data *
nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
{
struct wpa_driver_nl80211_data *drv;
dl_list_for_each(drv, &global->interfaces,
struct wpa_driver_nl80211_data, list) {
if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
have_ifidx(drv, idx))
return drv;
}
return NULL;
}
static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
struct ifinfomsg *ifi,
u8 *buf, size_t len)
{
struct nl80211_global *global = ctx;
struct wpa_driver_nl80211_data *drv;
int attrlen;
struct rtattr *attr;
u32 brid = 0;
char namebuf[IFNAMSIZ];
char ifname[IFNAMSIZ + 1];
char extra[100], *pos, *end;
drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
if (!drv) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d",
ifi->ifi_index);
return;
}
extra[0] = '\0';
pos = extra;
end = pos + sizeof(extra);
ifname[0] = '\0';
attrlen = len;
attr = (struct rtattr *) buf;
while (RTA_OK(attr, attrlen)) {
switch (attr->rta_type) {
case IFLA_IFNAME:
if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
break;
os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
ifname[RTA_PAYLOAD(attr)] = '\0';
break;
case IFLA_MASTER:
brid = nla_get_u32((struct nlattr *) attr);
pos += os_snprintf(pos, end - pos, " master=%u", brid);
break;
case IFLA_WIRELESS:
pos += os_snprintf(pos, end - pos, " wext");
break;
case IFLA_OPERSTATE:
pos += os_snprintf(pos, end - pos, " operstate=%u",
nla_get_u32((struct nlattr *) attr));
break;
case IFLA_LINKMODE:
pos += os_snprintf(pos, end - pos, " linkmode=%u",
nla_get_u32((struct nlattr *) attr));
break;
}
attr = RTA_NEXT(attr, attrlen);
}
extra[sizeof(extra) - 1] = '\0';
wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
ifi->ifi_index, ifname, extra, ifi->ifi_family,
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)) {
namebuf[0] = '\0';
if (if_indextoname(ifi->ifi_index, namebuf) &&
linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
"event since interface %s is up", namebuf);
drv->ignore_if_down_event = 0;
return;
}
wpa_printf(MSG_WARNING, "nl80211: Interface down (%s/%s)",
namebuf, ifname);
if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
wpa_printf(MSG_DEBUG,
"nl80211: Not the main interface (%s) - do not indicate interface down",
drv->first_bss->ifname);
} else if (drv->ignore_if_down_event) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
"event generated by mode change");
drv->ignore_if_down_event = 0;
} else {
drv->if_disabled = 1;
wpa_supplicant_event(drv->ctx,
EVENT_INTERFACE_DISABLED, NULL);
/*
* Try to get drv again, since it may be removed as
* part of the EVENT_INTERFACE_DISABLED handling for
* dynamic interfaces
*/
drv = nl80211_find_drv(global, ifi->ifi_index,
buf, len);
if (!drv)
return;
}
}
if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
if (if_indextoname(ifi->ifi_index, namebuf) &&
linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
"event since interface %s is down",
namebuf);
} else if (if_nametoindex(drv->first_bss->ifname) == 0) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
"event since interface %s does not exist",
drv->first_bss->ifname);
} else if (drv->if_removed) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
"event since interface %s is marked "
"removed", drv->first_bss->ifname);
} else {
struct i802_bss *bss;
u8 addr[ETH_ALEN];
/* Re-read MAC address as it may have changed */
bss = get_bss_ifindex(drv, ifi->ifi_index);
if (bss &&
linux_get_ifhwaddr(drv->global->ioctl_sock,
bss->ifname, addr) < 0) {
wpa_printf(MSG_DEBUG,
"nl80211: %s: failed to re-read MAC address",
bss->ifname);
} else if (bss &&
os_memcmp(addr, bss->addr, ETH_ALEN) != 0) {
wpa_printf(MSG_DEBUG,
"nl80211: Own MAC address on ifindex %d (%s) changed from "
MACSTR " to " MACSTR,
ifi->ifi_index, bss->ifname,
MAC2STR(bss->addr),
MAC2STR(addr));
os_memcpy(bss->addr, addr, ETH_ALEN);
}
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)) {
wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
-1, IF_OPER_UP);
}
if (ifname[0])
wpa_driver_nl80211_event_newlink(drv, ifname);
if (ifi->ifi_family == AF_BRIDGE && brid) {
struct i802_bss *bss;
/* device has been added to bridge */
if (!if_indextoname(brid, namebuf)) {
wpa_printf(MSG_DEBUG,
"nl80211: Could not find bridge ifname for ifindex %u",
brid);
return;
}
wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
brid, namebuf);
add_ifidx(drv, brid);
for (bss = drv->first_bss; bss; bss = bss->next) {
if (os_strcmp(ifname, bss->ifname) == 0) {
os_strlcpy(bss->brname, namebuf, IFNAMSIZ);
break;
}
}
}
}
static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
struct ifinfomsg *ifi,
u8 *buf, size_t len)
{
struct nl80211_global *global = ctx;
struct wpa_driver_nl80211_data *drv;
int attrlen;
struct rtattr *attr;
u32 brid = 0;
char ifname[IFNAMSIZ + 1];
char extra[100], *pos, *end;
drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
if (!drv) {
wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d",
ifi->ifi_index);
return;
}
extra[0] = '\0';
pos = extra;
end = pos + sizeof(extra);
ifname[0] = '\0';
attrlen = len;
attr = (struct rtattr *) buf;
while (RTA_OK(attr, attrlen)) {
switch (attr->rta_type) {
case IFLA_IFNAME:
if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
break;
os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
ifname[RTA_PAYLOAD(attr)] = '\0';
break;
case IFLA_MASTER:
brid = nla_get_u32((struct nlattr *) attr);
pos += os_snprintf(pos, end - pos, " master=%u", brid);
break;
case IFLA_OPERSTATE:
pos += os_snprintf(pos, end - pos, " operstate=%u",
nla_get_u32((struct nlattr *) attr));
break;
case IFLA_LINKMODE:
pos += os_snprintf(pos, end - pos, " linkmode=%u",
nla_get_u32((struct nlattr *) attr));
break;
}
attr = RTA_NEXT(attr, attrlen);
}
extra[sizeof(extra) - 1] = '\0';
wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
ifi->ifi_index, ifname, extra, ifi->ifi_family,
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 (ifname[0] && (ifi->ifi_family != AF_BRIDGE || !brid))
wpa_driver_nl80211_event_dellink(drv, ifname);
if (ifi->ifi_family == AF_BRIDGE && brid) {
/* device has been removed from bridge */
char namebuf[IFNAMSIZ];
if (!if_indextoname(brid, namebuf)) {
wpa_printf(MSG_DEBUG,
"nl80211: Could not find bridge ifname for ifindex %u",
brid);
} else {
wpa_printf(MSG_DEBUG,
"nl80211: Remove ifindex %u for bridge %s",
brid, namebuf);
}
del_ifidx(drv, brid);
}
}
unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
{
struct nl_msg *msg;
int ret;
struct nl80211_bss_info_arg arg;
msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
os_memset(&arg, 0, sizeof(arg));
arg.drv = drv;
ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
if (ret == 0) {
unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ?
arg.ibss_freq : arg.assoc_freq;
wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
"associated BSS from scan results: %u MHz", freq);
if (freq)
drv->assoc_freq = freq;
return drv->assoc_freq;
}
wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
"(%s)", ret, strerror(-ret));
return drv->assoc_freq;
}
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 },
[NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
[NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .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_SIGNAL_AVG])
sig_change->avg_signal =
(s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
else
sig_change->avg_signal = 0;
if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG])
sig_change->avg_beacon_signal =
(s8)
nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]);
else
sig_change->avg_beacon_signal = 0;
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;
}
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;
if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) ||
nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) {
nlmsg_free(msg);
return -ENOBUFS;
}
return send_and_recv_msgs(drv, msg, get_link_signal, sig);
}
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;
}
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 = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
}
static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
void *handle)
{
struct nl_cb *cb = eloop_ctx;
int res;
wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
res = nl_recvmsgs(handle, cb);
if (res < 0) {
wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
__func__, res);
}
}
/**
* 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';
if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) ||
nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) {
nlmsg_free(msg);
return -EINVAL;
}
if (send_and_recv_msgs(drv, msg, NULL, NULL))
return -EINVAL;
return 0;
}
static int nl80211_get_country(struct nl_msg *msg, void *arg)
{
char *alpha2 = arg;
struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
wpa_printf(MSG_DEBUG, "nl80211: No country information available");
return NL_SKIP;
}
os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
return NL_SKIP;
}
static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
{
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;
nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
alpha2[0] = '\0';
ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
if (!alpha2[0])
ret = -1;
return ret;
}
static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
{
int ret;
global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (global->nl_cb == NULL) {
wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
"callbacks");
return -1;
}
global->nl = nl_create_handle(global->nl_cb, "nl");
if (global->nl == NULL)
goto err;
global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
if (global->nl80211_id < 0) {
wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
"found");
goto err;
}
global->nl_event = nl_create_handle(global->nl_cb, "event");
if (global->nl_event == NULL)
goto err;
ret = nl_get_multicast_id(global, "nl80211", "scan");
if (ret >= 0)
ret = nl_socket_add_membership(global->nl_event, ret);
if (ret < 0) {
wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
"membership for scan events: %d (%s)",
ret, strerror(-ret));
goto err;
}
ret = nl_get_multicast_id(global, "nl80211", "mlme");
if (ret >= 0)
ret = nl_socket_add_membership(global->nl_event, ret);
if (ret < 0) {
wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
"membership for mlme events: %d (%s)",
ret, strerror(-ret));
goto err;
}
ret = nl_get_multicast_id(global, "nl80211", "regulatory");
if (ret >= 0)
ret = nl_socket_add_membership(global->nl_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 */
}
ret = nl_get_multicast_id(global, "nl80211", "vendor");
if (ret >= 0)
ret = nl_socket_add_membership(global->nl_event, ret);
if (ret < 0) {
wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
"membership for vendor events: %d (%s)",
ret, strerror(-ret));
/* Continue without vendor events */
}
nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
no_seq_check, NULL);
nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
process_global_event, global);
nl80211_register_eloop_read(&global->nl_event,
wpa_driver_nl80211_event_receive,
global->nl_cb);
return 0;
err:
nl_destroy_handles(&global->nl_event);
nl_destroy_handles(&global->nl);
nl_cb_put(global->nl_cb);
global->nl_cb = NULL;
return -1;
}
static void nl80211_check_global(struct nl80211_global *global)
{
struct nl_handle *handle;
const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL };
int ret;
unsigned int i;
/*
* Try to re-add memberships to handle case of cfg80211 getting reloaded
* and all registration having been cleared.
*/
handle = (void *) (((intptr_t) global->nl_event) ^
ELOOP_SOCKET_INVALID);
for (i = 0; groups[i]; i++) {
ret = nl_get_multicast_id(global, "nl80211", groups[i]);
if (ret >= 0)
ret = nl_socket_add_membership(handle, ret);
if (ret < 0) {
wpa_printf(MSG_INFO,
"nl80211: Could not re-add multicast membership for %s events: %d (%s)",
groups[i], ret, strerror(-ret));
}
}
}
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 (i802_set_iface_flags(drv->first_bss, 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 wpa_driver_nl80211_handle_eapol_tx_status(int sock,
void *eloop_ctx,
void *handle)
{
struct wpa_driver_nl80211_data *drv = eloop_ctx;
u8 data[2048];
struct msghdr msg;
struct iovec entry;
u8 control[512];
struct cmsghdr *cmsg;
int res, found_ee = 0, found_wifi = 0, acked = 0;
union wpa_event_data event;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = &entry;
msg.msg_iovlen = 1;
entry.iov_base = data;
entry.iov_len = sizeof(data);
msg.msg_control = &control;
msg.msg_controllen = sizeof(control);
res = recvmsg(sock, &msg, MSG_ERRQUEUE);
/* if error or not fitting 802.3 header, return */
if (res < 14)
return;
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
{
if (cmsg->cmsg_level == SOL_SOCKET &&
cmsg->cmsg_type == SCM_WIFI_STATUS) {
int *ack;
found_wifi = 1;
ack = (void *)CMSG_DATA(cmsg);
acked = *ack;
}
if (cmsg->cmsg_level == SOL_PACKET &&
cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
struct sock_extended_err *err =
(struct sock_extended_err *)CMSG_DATA(cmsg);
if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
found_ee = 1;
}
}
if (!found_ee || !found_wifi)
return;
memset(&event, 0, sizeof(event));
event.eapol_tx_status.dst = data;
event.eapol_tx_status.data = data + 14;
event.eapol_tx_status.data_len = res - 14;
event.eapol_tx_status.ack = acked;
wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
}
static int nl80211_init_bss(struct i802_bss *bss)
{
bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (!bss->nl_cb)
return -1;
nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
no_seq_check, NULL);
nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
process_bss_event, bss);
return 0;
}
static void nl80211_destroy_bss(struct i802_bss *bss)
{
nl_cb_put(bss->nl_cb);
bss->nl_cb = NULL;
}
static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
void *global_priv, int hostapd,
const u8 *set_addr,
const char *driver_params)
{
struct wpa_driver_nl80211_data *drv;
struct rfkill_config *rcfg;
struct i802_bss *bss;
if (global_priv == NULL)
return NULL;
drv = os_zalloc(sizeof(*drv));
if (drv == NULL)
return NULL;
drv->global = global_priv;
drv->ctx = ctx;
drv->hostapd = !!hostapd;
drv->eapol_sock = -1;
/*
* There is no driver capability flag for this, so assume it is
* supported and disable this on first attempt to use if the driver
* rejects the command due to missing support.
*/
drv->set_rekey_offload = 1;
drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
drv->if_indices = drv->default_if_indices;
drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
if (!drv->first_bss) {
os_free(drv);
return NULL;
}
bss = drv->first_bss;
bss->drv = drv;
bss->ctx = ctx;
os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
drv->monitor_ifidx = -1;
drv->monitor_sock = -1;
drv->eapol_tx_sock = -1;
drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
if (nl80211_init_bss(bss))
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 (linux_iface_up(drv->global->ioctl_sock, ifname) > 0)
drv->start_iface_up = 1;
if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params))
goto failed;
drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
if (drv->eapol_tx_sock < 0)
goto failed;
if (drv->data_tx_status) {
int enabled = 1;
if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
&enabled, sizeof(enabled)) < 0) {
wpa_printf(MSG_DEBUG,
"nl80211: wifi status sockopt failed\n");
drv->data_tx_status = 0;
if (!drv->use_monitor)
drv->capa.flags &=
~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
} else {
eloop_register_read_sock(drv->eapol_tx_sock,
wpa_driver_nl80211_handle_eapol_tx_status,
drv, NULL);
}
}
if (drv->global) {
nl80211_check_global(drv->global);
dl_list_add(&drv->global->interfaces, &drv->list);
drv->in_interface_list = 1;
}
return bss;
failed:
wpa_driver_nl80211_deinit(bss);
return NULL;
}
/**
* 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)
{
return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL,
NULL);
}
static int nl80211_register_frame(struct i802_bss *bss,
struct nl_handle *nl_handle,
u16 type, const u8 *match, size_t match_len)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
struct nl_msg *msg;
int ret;
char buf[30];
buf[0] = '\0';
wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s",
type, fc2str(type), nl_handle, buf);
if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_ACTION)) ||
nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) ||
nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) {
nlmsg_free(msg);
return -1;
}
ret = send_and_recv(drv->global, nl_handle, msg, NULL, 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);
}
return ret;
}
static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
{
if (bss->nl_mgmt) {
wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
"already on! (nl_mgmt=%p)", bss->nl_mgmt);
return -1;
}
bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt");
if (bss->nl_mgmt == NULL)
return -1;
return 0;
}
static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
{
nl80211_register_eloop_read(&bss->nl_mgmt,
wpa_driver_nl80211_event_receive,
bss->nl_cb);
}
static int nl80211_register_action_frame(struct i802_bss *bss,
const u8 *match, size_t match_len)
{
u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
return nl80211_register_frame(bss, bss->nl_mgmt,
type, match, match_len);
}
static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
int ret = 0;
if (nl80211_alloc_mgmt_handle(bss))
return -1;
wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
"handle %p", bss->nl_mgmt);
if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
/* register for any AUTH message */
nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
}
#ifdef CONFIG_INTERWORKING
/* QoS Map Configure */
if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
ret = -1;
#endif /* CONFIG_INTERWORKING */
#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
/* GAS Initial Request */
if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
ret = -1;
/* GAS Initial Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
ret = -1;
/* GAS Comeback Request */
if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
ret = -1;
/* GAS Comeback Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
ret = -1;
/* Protected GAS Initial Request */
if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
ret = -1;
/* Protected GAS Initial Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
ret = -1;
/* Protected GAS Comeback Request */
if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
ret = -1;
/* Protected GAS Comeback Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
ret = -1;
#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
#ifdef CONFIG_P2P
/* P2P Public Action */
if (nl80211_register_action_frame(bss,
(u8 *) "\x04\x09\x50\x6f\x9a\x09",
6) < 0)
ret = -1;
/* P2P Action */
if (nl80211_register_action_frame(bss,
(u8 *) "\x7f\x50\x6f\x9a\x09",
5) < 0)
ret = -1;
#endif /* CONFIG_P2P */
#ifdef CONFIG_IEEE80211W
/* SA Query Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
ret = -1;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_TDLS
if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
/* TDLS Discovery Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
0)
ret = -1;
}
#endif /* CONFIG_TDLS */
/* FT Action frames */
if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
ret = -1;
else
drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
/* WNM - BSS Transition Management Request */
if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
ret = -1;
/* WNM-Sleep Mode Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
ret = -1;
#ifdef CONFIG_HS20
/* WNM-Notification */
if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0)
ret = -1;
#endif /* CONFIG_HS20 */
/* WMM-AC ADDTS Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0)
ret = -1;
/* WMM-AC DELTS */
if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0)
ret = -1;
/* Radio Measurement - Neighbor Report Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0)
ret = -1;
/* Radio Measurement - Link Measurement Request */
if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) &&
(nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0))
ret = -1;
nl80211_mgmt_handle_register_eloop(bss);
return ret;
}
static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss)
{
int ret = 0;
if (nl80211_alloc_mgmt_handle(bss))
return -1;
wpa_printf(MSG_DEBUG,
"nl80211: Subscribe to mgmt frames with mesh handle %p",
bss->nl_mgmt);
/* Auth frames for mesh SAE */
if (nl80211_register_frame(bss, bss->nl_mgmt,
(WLAN_FC_TYPE_MGMT << 2) |
(WLAN_FC_STYPE_AUTH << 4),
NULL, 0) < 0)
ret = -1;
/* Mesh peering open */
if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0)
ret = -1;
/* Mesh peering confirm */
if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0)
ret = -1;
/* Mesh peering close */
if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0)
ret = -1;
nl80211_mgmt_handle_register_eloop(bss);
return ret;
}
static int nl80211_register_spurious_class3(struct i802_bss *bss)
{
struct nl_msg *msg;
int ret;
msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME);
ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL);
if (ret) {
wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
"failed: ret=%d (%s)",
ret, strerror(-ret));
}
return ret;
}
static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
{
static const int stypes[] = {
WLAN_FC_STYPE_AUTH,
WLAN_FC_STYPE_ASSOC_REQ,
WLAN_FC_STYPE_REASSOC_REQ,
WLAN_FC_STYPE_DISASSOC,
WLAN_FC_STYPE_DEAUTH,
WLAN_FC_STYPE_ACTION,
WLAN_FC_STYPE_PROBE_REQ,
/* Beacon doesn't work as mac80211 doesn't currently allow
* it, but it wouldn't really be the right thing anyway as
* it isn't per interface ... maybe just dump the scan
* results periodically for OLBC?
*/
/* WLAN_FC_STYPE_BEACON, */
};
unsigned int i;
if (nl80211_alloc_mgmt_handle(bss))
return -1;
wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
"handle %p", bss->nl_mgmt);
for (i = 0; i < ARRAY_SIZE(stypes); i++) {
if (nl80211_register_frame(bss, bss->nl_mgmt,
(WLAN_FC_TYPE_MGMT << 2) |
(stypes[i] << 4),
NULL, 0) < 0) {
goto out_err;
}
}
if (nl80211_register_spurious_class3(bss))
goto out_err;
if (nl80211_get_wiphy_data_ap(bss) == NULL)
goto out_err;
nl80211_mgmt_handle_register_eloop(bss);
return 0;
out_err:
nl_destroy_handles(&bss->nl_mgmt);
return -1;
}
static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
{
if (nl80211_alloc_mgmt_handle(bss))
return -1;
wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
"handle %p (device SME)", bss->nl_mgmt);
if (nl80211_register_frame(bss, bss->nl_mgmt,
(WLAN_FC_TYPE_MGMT << 2) |
(WLAN_FC_STYPE_ACTION << 4),
NULL, 0) < 0)
goto out_err;
nl80211_mgmt_handle_register_eloop(bss);
return 0;
out_err:
nl_destroy_handles(&bss->nl_mgmt);
return -1;
}
static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
{
if (bss->nl_mgmt == NULL)
return;
wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
"(%s)", bss->nl_mgmt, reason);
nl80211_destroy_eloop_handle(&bss->nl_mgmt);
nl80211_put_wiphy_data_ap(bss);
}
static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
{
wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
}
static void nl80211_del_p2pdev(struct i802_bss *bss)
{
struct nl_msg *msg;
int ret;
msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE);
ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
bss->ifname, (long long unsigned int) bss->wdev_id,
strerror(-ret));
}
static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
{
struct nl_msg *msg;
int ret;
msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE :
NL80211_CMD_STOP_P2P_DEVICE);
ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
start ? "Start" : "Stop",
bss->ifname, (long long unsigned int) bss->wdev_id,
strerror(-ret));
return ret;
}
static int i802_set_iface_flags(struct i802_bss *bss, int up)
{
enum nl80211_iftype nlmode;
nlmode = nl80211_get_ifmode(bss);
if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
return linux_set_iface_flags(bss->drv->global->ioctl_sock,
bss->ifname, up);
}
/* P2P Device has start/stop which is equivalent */
return nl80211_set_p2pdev(bss, up);
}
#ifdef CONFIG_TESTING_OPTIONS
static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg)
{
/* struct wpa_driver_nl80211_data *drv = arg; */
struct nlattr *tb[NL80211_ATTR_MAX + 1];
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
wpa_printf(MSG_DEBUG,
"nl80211: QCA vendor test command response received");
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
genlmsg_attrlen(gnlh, 0), NULL);
if (!tb[NL80211_ATTR_VENDOR_DATA]) {
wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute");
return NL_SKIP;
}
wpa_hexdump(MSG_DEBUG,
"nl80211: Received QCA vendor test command response",
nla_data(tb[NL80211_ATTR_VENDOR_DATA]),
nla_len(tb[NL80211_ATTR_VENDOR_DATA]));
return NL_SKIP;
}
#endif /* CONFIG_TESTING_OPTIONS */
static void qca_vendor_test(struct wpa_driver_nl80211_data *drv)
{
#ifdef CONFIG_TESTING_OPTIONS
struct nl_msg *msg;
struct nlattr *params;
int ret;
if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
QCA_NL80211_VENDOR_SUBCMD_TEST) ||
!(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) {
nlmsg_free(msg);
return;
}
nla_nest_end(msg, params);
ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv);
wpa_printf(MSG_DEBUG,
"nl80211: QCA vendor test command returned %d (%s)",
ret, strerror(-ret));
#endif /* CONFIG_TESTING_OPTIONS */
}
static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
const u8 *set_addr, int first,
const char *driver_params)
{
struct i802_bss *bss = drv->first_bss;
int send_rfkill_event = 0;
enum nl80211_iftype nlmode;
drv->ifindex = if_nametoindex(bss->ifname);
bss->ifindex = drv->ifindex;
bss->wdev_id = drv->global->if_add_wdevid;
bss->wdev_id_set = drv->global->if_add_wdevid_set;
bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
drv->global->if_add_wdevid_set = 0;
if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
bss->static_ap = 1;
if (wpa_driver_nl80211_capa(drv))
return -1;
if (driver_params && nl80211_set_param(bss, driver_params) < 0)
return -1;
wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
bss->ifname, drv->phyname);
if (set_addr &&
(linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
set_addr)))
return -1;
if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
drv->start_mode_ap = 1;
if (drv->hostapd || bss->static_ap)
nlmode = NL80211_IFTYPE_AP;
else if (bss->if_dynamic)
nlmode = nl80211_get_ifmode(bss);
else
nlmode = NL80211_IFTYPE_STATION;
if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
return -1;
}
if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
nl80211_get_macaddr(bss);
if (!rfkill_is_blocked(drv->rfkill)) {
int ret = i802_set_iface_flags(bss, 1);
if (ret) {
wpa_printf(MSG_ERROR, "nl80211: Could not set "
"interface '%s' UP", bss->ifname);
return ret;
}
if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
return ret;
} else {
wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
"interface '%s' due to rfkill", bss->ifname);
if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
return 0;
drv->if_disabled = 1;
send_rfkill_event = 1;
}
if (!drv->hostapd)
netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1, IF_OPER_DORMANT);
if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
bss->addr))
return -1;
os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN);
if (send_rfkill_event) {
eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
drv, drv->ctx);
}
if (drv->vendor_cmd_test_avail)
qca_vendor_test(drv);
return 0;
}
static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
{
struct nl_msg *msg;
wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
drv->ifindex);
msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON);
return send_and_recv_msgs(drv, msg, NULL, NULL);
}
/**
* wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
* @bss: 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(struct i802_bss *bss)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d",
bss->ifname, drv->disabled_11b_rates);
bss->in_deinit = 1;
if (drv->data_tx_status)
eloop_unregister_read_sock(drv->eapol_tx_sock);
if (drv->eapol_tx_sock >= 0)
close(drv->eapol_tx_sock);
if (bss->nl_preq)
wpa_driver_nl80211_probe_req_report(bss, 0);
if (bss->added_if_into_bridge) {
if (linux_br_del_if(drv->global->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 (drv->rtnl_sk)
nl80211_handle_destroy(drv->rtnl_sk);
}
if (bss->added_bridge) {
if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname,
0) < 0)
wpa_printf(MSG_INFO,
"nl80211: Could not set bridge %s down",
bss->brname);
if (linux_br_del(drv->global->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 (is_ap_interface(drv->nlmode))
wpa_driver_nl80211_del_beacon(drv);
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);
if (drv->disabled_11b_rates)
nl80211_disable_11b_rates(drv, drv->ifindex, 0);
netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
IF_OPER_UP);
eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx);
rfkill_deinit(drv->rfkill);
eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
if (!drv->start_iface_up)
(void) i802_set_iface_flags(bss, 0);
if (drv->addr_changed) {
if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
0) < 0) {
wpa_printf(MSG_DEBUG,
"nl80211: Could not set interface down to restore permanent MAC address");
}
if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
drv->perm_addr) < 0) {
wpa_printf(MSG_DEBUG,
"nl80211: Could not restore permanent MAC address");
}
}
if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
if (!drv->hostapd || !drv->start_mode_ap)
wpa_driver_nl80211_set_mode(bss,
NL80211_IFTYPE_STATION);
nl80211_mgmt_unsubscribe(bss, "deinit");
} else {
nl80211_mgmt_unsubscribe(bss, "deinit");
nl80211_del_p2pdev(bss);
}
nl80211_destroy_bss(drv->first_bss);
os_free(drv->filter_ssids);
os_free(drv->auth_ie);
if (drv->in_interface_list)
dl_list_del(&drv->list);
os_free(drv->extended_capa);
os_free(drv->extended_capa_mask);
os_free(drv->first_bss);
os_free(drv);
}
static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
{
switch (alg) {
case WPA_ALG_WEP:
if (key_len == 5)
return WLAN_CIPHER_SUITE_WEP40;
return WLAN_CIPHER_SUITE_WEP104;
case WPA_ALG_TKIP:
return WLAN_CIPHER_SUITE_TKIP;
case WPA_ALG_CCMP:
return WLAN_CIPHER_SUITE_CCMP;
case WPA_ALG_GCMP:
return WLAN_CIPHER_SUITE_GCMP;
case WPA_ALG_CCMP_256:
return WLAN_CIPHER_SUITE_CCMP_256;
case WPA_ALG_GCMP_256:
return WLAN_CIPHER_SUITE_GCMP_256;
case WPA_ALG_IGTK:
return WLAN_CIPHER_SUITE_AES_CMAC;
case WPA_ALG_BIP_GMAC_128:
return WLAN_CIPHER_SUITE_BIP_GMAC_128;
case WPA_ALG_BIP_GMAC_256:
return WLAN_CIPHER_SUITE_BIP_GMAC_256;
case WPA_ALG_BIP_CMAC_256:
return WLAN_CIPHER_SUITE_BIP_CMAC_256;
case WPA_ALG_SMS4:
return WLAN_CIPHER_SUITE_SMS4;
case WPA_ALG_KRK:
return WLAN_CIPHER_SUITE_KRK;
case WPA_ALG_NONE:
case WPA_ALG_PMK:
wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
alg);
return 0;
}
wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
alg);
return 0;
}
static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
{
switch (cipher) {
case WPA_CIPHER_CCMP_256:
return WLAN_CIPHER_SUITE_CCMP_256;
case WPA_CIPHER_GCMP_256:
return WLAN_CIPHER_SUITE_GCMP_256;
case WPA_CIPHER_CCMP:
return WLAN_CIPHER_SUITE_CCMP;
case WPA_CIPHER_GCMP:
return WLAN_CIPHER_SUITE_GCMP;
case WPA_CIPHER_TKIP:
return WLAN_CIPHER_SUITE_TKIP;
case WPA_CIPHER_WEP104:
return WLAN_CIPHER_SUITE_WEP104;
case WPA_CIPHER_WEP40:
return WLAN_CIPHER_SUITE_WEP40;
case WPA_CIPHER_GTK_NOT_USED:
return WLAN_CIPHER_SUITE_NO_GROUP_ADDR;
}
return 0;
}
static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
int max_suites)
{
int num_suites = 0;
if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256;
if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256;
if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
return num_suites;
}
static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv,
const u8 *key, size_t key_len)
{
struct nl_msg *msg;
int ret;
if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
return 0;
if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) ||
nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) {
nl80211_nlmsg_clear(msg);
nlmsg_free(msg);
return -1;
}
ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
if (ret) {
wpa_printf(MSG_DEBUG,
"nl80211: Key management set key failed: ret=%d (%s)",
ret, strerror(-ret));
}
return ret;
}
static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
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 wpa_driver_nl80211_data *drv = bss->drv;
int ifindex;
struct nl_msg *msg;
int ret;
int tdls = 0;
/* Ignore for P2P Device */
if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
return 0;
ifindex = if_nametoindex(ifname);
wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
"set_tx=%d seq_len=%lu key_len=%lu",
__func__, ifindex, ifname, alg, addr, key_idx, set_tx,
(unsigned long) seq_len, (unsigned long) key_len);
#ifdef CONFIG_TDLS
if (key_idx == -1) {
key_idx = 0;
tdls = 1;
}
#endif /* CONFIG_TDLS */
if (alg == WPA_ALG_PMK &&
(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) {
wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key",
__func__);
ret = issue_key_mgmt_set_key(drv, key, key_len);
return ret;
}
if (alg == WPA_ALG_NONE) {
msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
if (!msg)
return -ENOBUFS;
} else {
msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY);
if (!msg ||
nla_put(msg, NL80211_ATTR_KEY_DATA, key_len, key) ||
nla_put_u32(msg, NL80211_ATTR_KEY_CIPHER,
wpa_alg_to_cipher_suite(alg, key_len)))
goto fail;
wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len);
}
if (seq && seq_len) {
if (nla_put(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq))
goto fail;
wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len);
}
if (addr && !is_broadcast_ether_addr(addr)) {
wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
goto fail;
if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
if (nla_put_u32(msg, NL80211_ATTR_KEY_TYPE,
NL80211_KEYTYPE_GROUP))
goto fail;
}
} else if (addr && is_broadcast_ether_addr(addr)) {
struct nlattr *types;
wpa_printf(MSG_DEBUG, " broadcast key");
types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
if (!types ||
nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
goto fail;
nla_nest_end(msg, types);
}
if (nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
goto fail;
ret = send_and_recv_msgs(drv, msg, NULL, key ? (void *) -1 : 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 || tdls)
return ret;
if (is_ap_interface(drv->nlmode) && addr &&
!is_broadcast_ether_addr(addr))
return ret;
msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY);
if (!msg ||
nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx) ||
nla_put_flag(msg, (alg == WPA_ALG_IGTK ||
alg == WPA_ALG_BIP_GMAC_128 ||
alg == WPA_ALG_BIP_GMAC_256 ||
alg == WPA_ALG_BIP_CMAC_256) ?
NL80211_ATTR_KEY_DEFAULT_MGMT :
NL80211_ATTR_KEY_DEFAULT))
goto fail;
if (addr && is_broadcast_ether_addr(addr)) {
struct nlattr *types;
types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
if (!types ||
nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
goto fail;
nla_nest_end(msg, types);
} else if (addr) {
struct nlattr *types;
types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
if (!types ||
nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST))
goto fail;
nla_nest_end(msg, types);
}
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;
fail:
nl80211_nlmsg_clear(msg);
nlmsg_free(msg);
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) {
if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT))
return -1;
} else if (defkey) {
if (nla_put_flag(msg, NL80211_KEY_DEFAULT))
return -1;
}
if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) ||
nla_put_u32(msg, NL80211_KEY_CIPHER,
wpa_alg_to_cipher_suite(alg, key_len)) ||
(seq && seq_len &&
nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) ||
nla_put(msg, NL80211_KEY_DATA, key_len, key))
return -1;
nla_nest_end(msg, key_attr);
return 0;
}
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;
if (nla_put_flag(msg, NL80211_ATTR_PRIVACY))
return -ENOBUFS;
nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
if (!nl_keys)
return -ENOBUFS;
for (i = 0; i < 4; i++) {
if (!params->wep_key[i])
continue;
nl_key = nla_nest_start(msg, i);
if (!nl_key ||
nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i],
params->wep_key[i]) ||
nla_put_u32(msg, NL80211_KEY_CIPHER,
params->wep_key_len[i] == 5 ?
WLAN_CIPHER_SUITE_WEP40 :
WLAN_CIPHER_SUITE_WEP104) ||
nla_put_u8(msg, NL80211_KEY_IDX, i) ||
(i == params->wep_tx_keyidx &&
nla_put_flag(msg, NL80211_KEY_DEFAULT)))
return -ENOBUFS;
nla_nest_end(msg, nl_key);
}
nla_nest_end(msg, nl_keys);
return 0;
}
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;
struct nl_msg *msg;
if (!(msg = nl80211_drv_msg(drv, 0, cmd)) ||
nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) ||
(addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
(local_state_change &&
nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) {
nlmsg_free(msg);
return -1;
}
ret = send_and_recv_msgs(drv, msg, NULL, NULL);
if (ret) {
wpa_dbg(drv->ctx, MSG_DEBUG,
"nl80211: MLME command failed: reason=%u ret=%d (%s)",
reason_code, ret, strerror(-ret));
}
return ret;
}
static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
int reason_code)
{
int ret;
wpa_printf(MSG_DEBUG, "%s(reason_code=%s)", __func__,
reason2str(reason_code));
nl80211_mark_disconnected(drv);
/* Disconnect command doesn't need BSSID - it uses cached value */
ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
reason_code, 0);
/*
* For locally generated disconnect, supplicant already generates a
* DEAUTH event, so ignore the event from NL80211.
*/
drv->ignore_next_local_disconnect = ret == 0;
return ret;
}
static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
const u8 *addr, int reason_code)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
int ret;
if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
nl80211_mark_disconnected(drv);
return nl80211_leave_ibss(drv, 1);
}
if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
return wpa_driver_nl80211_disconnect(drv, reason_code);
wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%s)",
__func__, MAC2STR(addr), reason2str(reason_code));
nl80211_mark_disconnected(drv);
ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
reason_code, 0);
/*
* For locally generated deauthenticate, supplicant already generates a
* DEAUTH event, so ignore the event from NL80211.
*/
drv->ignore_next_local_deauth = ret == 0;
return ret;
}
static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
struct wpa_driver_auth_params *params)
{
int i;
drv->auth_freq = params->freq;
drv->auth_alg = params->auth_alg;
drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
drv->auth_local_state_change = params->local_state_change;
drv->auth_p2p = params->p2p;
if (params->bssid)
os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
else
os_memset(drv->auth_bssid_, 0, ETH_ALEN);
if (params->ssid) {
os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
drv->auth_ssid_len = params->ssid_len;
} else
drv->auth_ssid_len = 0;
os_free(drv->auth_ie);
drv->auth_ie = NULL;
drv->auth_ie_len = 0;
if (params->ie) {
drv->auth_ie = os_malloc(params->ie_len);
if (drv->auth_ie) {
os_memcpy(drv->auth_ie, params->ie, params->ie_len);
drv->auth_ie_len = params->ie_len;
}
}
for (i = 0; i < 4; i++) {
if (params->wep_key[i] && params->wep_key_len[i] &&
params->wep_key_len[i] <= 16) {
os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
params->wep_key_len[i]);
drv->auth_wep_key_len[i] = params->wep_key_len[i];
} else
drv->auth_wep_key_len[i] = 0;
}
}
static void nl80211_unmask_11b_rates(struct i802_bss *bss)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates)
return;
/*
* Looks like we failed to unmask 11b rates previously. This could
* happen, e.g., if the interface was down at the point in time when a
* P2P group was terminated.
*/
wpa_printf(MSG_DEBUG,
"nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them",
bss->ifname);
nl80211_disable_11b_rates(drv, drv->ifindex, 0);
}
static int wpa_driver_nl80211_authenticate(
struct i802_bss *bss, struct wpa_driver_auth_params *params)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
int ret = -1, i;
struct nl_msg *msg;
enum nl80211_auth_type type;
enum nl80211_iftype nlmode;
int count = 0;
int is_retry;
nl80211_unmask_11b_rates(bss);
is_retry = drv->retry_auth;
drv->retry_auth = 0;
drv->ignore_deauth_event = 0;
nl80211_mark_disconnected(drv);
os_memset(drv->auth_bssid, 0, ETH_ALEN);
if (params->bssid)
os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
else
os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
/* FIX: IBSS mode */
nlmode = params->p2p ?
NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
if (drv->nlmode != nlmode &&
wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
return -1;
retry:
wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
drv->ifindex);
msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE);
if (!msg)
goto fail;
for (i = 0; i < 4; i++) {
if (!params->wep_key[i])
continue;
wpa_driver_nl80211_set_key(bss->ifname, bss, 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]))
goto fail;
}
if (params->bssid) {
wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
MAC2STR(params->bssid));
if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
goto fail;
}
if (params->freq) {
wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq))
goto fail;
}
if (params->ssid) {
wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
params->ssid, params->ssid_len);
if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
params->ssid))
goto fail;
}
wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
if (params->ie &&
nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie))
goto fail;
if (params->sae_data) {
wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
params->sae_data_len);
if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
params->sae_data))
goto fail;
}
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 if (params->auth_alg & WPA_AUTH_ALG_SAE)
type = NL80211_AUTHTYPE_SAE;
else
goto fail;
wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
goto fail;
if (params->local_state_change) {
wpa_printf(MSG_DEBUG, " * Local state change only");
if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))
goto fail;
}