d3cab56c04
IGTK is the key that is used a BIP cipher. WPA_ALG_IGTK was the historical name used for this enum value when only the AES-128-CMAC based BIP algorithm was supported. Rename this to match the style used with the other BIP options. Signed-off-by: Jouni Malinen <j@w1.fi>
2499 lines
64 KiB
C
2499 lines
64 KiB
C
/*
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* Driver interaction with generic Linux Wireless Extensions
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* Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*
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* This file implements a driver interface for the Linux Wireless Extensions.
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* When used with WE-18 or newer, this interface can be used as-is with number
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* of drivers. In addition to this, some of the common functions in this file
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* can be used by other driver interface implementations that use generic WE
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* ioctls, but require private ioctls for some of the functionality.
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*/
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#include "includes.h"
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <net/if_arp.h>
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#include <dirent.h>
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#include "linux_wext.h"
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#include "common.h"
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#include "eloop.h"
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#include "common/ieee802_11_defs.h"
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#include "common/wpa_common.h"
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#include "priv_netlink.h"
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#include "netlink.h"
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#include "linux_ioctl.h"
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#include "rfkill.h"
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#include "driver.h"
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#include "driver_wext.h"
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static int wpa_driver_wext_flush_pmkid(void *priv);
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static int wpa_driver_wext_get_range(void *priv);
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static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv);
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static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv);
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static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg);
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int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
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int idx, u32 value)
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{
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struct iwreq iwr;
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int ret = 0;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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iwr.u.param.flags = idx & IW_AUTH_INDEX;
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iwr.u.param.value = value;
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if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
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if (errno != EOPNOTSUPP) {
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wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
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"value 0x%x) failed: %s)",
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idx, value, strerror(errno));
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}
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ret = errno == EOPNOTSUPP ? -2 : -1;
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}
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return ret;
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}
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/**
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* wpa_driver_wext_get_bssid - Get BSSID, SIOCGIWAP
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* @priv: Pointer to private wext data from wpa_driver_wext_init()
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* @bssid: Buffer for BSSID
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* Returns: 0 on success, -1 on failure
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*/
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int wpa_driver_wext_get_bssid(void *priv, u8 *bssid)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct iwreq iwr;
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int ret = 0;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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if (ioctl(drv->ioctl_sock, SIOCGIWAP, &iwr) < 0) {
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wpa_printf(MSG_ERROR, "ioctl[SIOCGIWAP]: %s", strerror(errno));
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ret = -1;
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}
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os_memcpy(bssid, iwr.u.ap_addr.sa_data, ETH_ALEN);
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return ret;
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}
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/**
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* wpa_driver_wext_set_bssid - Set BSSID, SIOCSIWAP
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* @priv: Pointer to private wext data from wpa_driver_wext_init()
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* @bssid: BSSID
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* Returns: 0 on success, -1 on failure
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*/
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int wpa_driver_wext_set_bssid(void *priv, const u8 *bssid)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct iwreq iwr;
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int ret = 0;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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iwr.u.ap_addr.sa_family = ARPHRD_ETHER;
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if (bssid)
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os_memcpy(iwr.u.ap_addr.sa_data, bssid, ETH_ALEN);
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else
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os_memset(iwr.u.ap_addr.sa_data, 0, ETH_ALEN);
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if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr) < 0) {
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wpa_printf(MSG_ERROR, "ioctl[SIOCSIWAP]: %s", strerror(errno));
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ret = -1;
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}
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return ret;
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}
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/**
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* wpa_driver_wext_get_ssid - Get SSID, SIOCGIWESSID
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* @priv: Pointer to private wext data from wpa_driver_wext_init()
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* @ssid: Buffer for the SSID; must be at least 32 bytes long
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* Returns: SSID length on success, -1 on failure
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*/
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int wpa_driver_wext_get_ssid(void *priv, u8 *ssid)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct iwreq iwr;
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int ret = 0;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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iwr.u.essid.pointer = (caddr_t) ssid;
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iwr.u.essid.length = SSID_MAX_LEN;
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if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
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wpa_printf(MSG_ERROR, "ioctl[SIOCGIWESSID]: %s",
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strerror(errno));
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ret = -1;
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} else {
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ret = iwr.u.essid.length;
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if (ret > SSID_MAX_LEN)
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ret = SSID_MAX_LEN;
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/* Some drivers include nul termination in the SSID, so let's
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* remove it here before further processing. WE-21 changes this
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* to explicitly require the length _not_ to include nul
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* termination. */
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if (ret > 0 && ssid[ret - 1] == '\0' &&
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drv->we_version_compiled < 21)
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ret--;
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}
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return ret;
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}
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/**
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* wpa_driver_wext_set_ssid - Set SSID, SIOCSIWESSID
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* @priv: Pointer to private wext data from wpa_driver_wext_init()
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* @ssid: SSID
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* @ssid_len: Length of SSID (0..32)
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* Returns: 0 on success, -1 on failure
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*/
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int wpa_driver_wext_set_ssid(void *priv, const u8 *ssid, size_t ssid_len)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct iwreq iwr;
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int ret = 0;
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char buf[33];
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if (ssid_len > SSID_MAX_LEN)
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return -1;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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/* flags: 1 = ESSID is active, 0 = not (promiscuous) */
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iwr.u.essid.flags = (ssid_len != 0);
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os_memset(buf, 0, sizeof(buf));
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os_memcpy(buf, ssid, ssid_len);
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iwr.u.essid.pointer = (caddr_t) buf;
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if (drv->we_version_compiled < 21) {
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/* For historic reasons, set SSID length to include one extra
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* character, C string nul termination, even though SSID is
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* really an octet string that should not be presented as a C
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* string. Some Linux drivers decrement the length by one and
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* can thus end up missing the last octet of the SSID if the
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* length is not incremented here. WE-21 changes this to
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* explicitly require the length _not_ to include nul
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* termination. */
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if (ssid_len)
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ssid_len++;
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}
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iwr.u.essid.length = ssid_len;
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if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
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wpa_printf(MSG_ERROR, "ioctl[SIOCSIWESSID]: %s",
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strerror(errno));
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ret = -1;
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}
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return ret;
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}
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/**
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* wpa_driver_wext_set_freq - Set frequency/channel, SIOCSIWFREQ
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* @priv: Pointer to private wext data from wpa_driver_wext_init()
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* @freq: Frequency in MHz
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* Returns: 0 on success, -1 on failure
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*/
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int wpa_driver_wext_set_freq(void *priv, int freq)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct iwreq iwr;
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int ret = 0;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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iwr.u.freq.m = freq * 100000;
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iwr.u.freq.e = 1;
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if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
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wpa_printf(MSG_ERROR, "ioctl[SIOCSIWFREQ]: %s",
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strerror(errno));
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ret = -1;
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}
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return ret;
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}
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static void
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wpa_driver_wext_event_wireless_custom(void *ctx, char *custom)
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{
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union wpa_event_data data;
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wpa_printf(MSG_MSGDUMP, "WEXT: Custom wireless event: '%s'",
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custom);
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os_memset(&data, 0, sizeof(data));
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/* Host AP driver */
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if (os_strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
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data.michael_mic_failure.unicast =
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os_strstr(custom, " unicast ") != NULL;
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/* TODO: parse parameters(?) */
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wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
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} else if (os_strncmp(custom, "ASSOCINFO(ReqIEs=", 17) == 0) {
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char *spos;
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int bytes;
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u8 *req_ies = NULL, *resp_ies = NULL;
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spos = custom + 17;
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bytes = strspn(spos, "0123456789abcdefABCDEF");
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if (!bytes || (bytes & 1))
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return;
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bytes /= 2;
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req_ies = os_malloc(bytes);
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if (req_ies == NULL ||
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hexstr2bin(spos, req_ies, bytes) < 0)
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goto done;
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data.assoc_info.req_ies = req_ies;
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data.assoc_info.req_ies_len = bytes;
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spos += bytes * 2;
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data.assoc_info.resp_ies = NULL;
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data.assoc_info.resp_ies_len = 0;
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if (os_strncmp(spos, " RespIEs=", 9) == 0) {
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spos += 9;
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bytes = strspn(spos, "0123456789abcdefABCDEF");
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if (!bytes || (bytes & 1))
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goto done;
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bytes /= 2;
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resp_ies = os_malloc(bytes);
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if (resp_ies == NULL ||
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hexstr2bin(spos, resp_ies, bytes) < 0)
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goto done;
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data.assoc_info.resp_ies = resp_ies;
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data.assoc_info.resp_ies_len = bytes;
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}
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wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
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done:
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os_free(resp_ies);
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os_free(req_ies);
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}
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}
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static int wpa_driver_wext_event_wireless_michaelmicfailure(
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void *ctx, const char *ev, size_t len)
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{
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const struct iw_michaelmicfailure *mic;
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union wpa_event_data data;
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if (len < sizeof(*mic))
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return -1;
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mic = (const struct iw_michaelmicfailure *) ev;
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wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
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"flags=0x%x src_addr=" MACSTR, mic->flags,
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MAC2STR(mic->src_addr.sa_data));
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os_memset(&data, 0, sizeof(data));
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data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
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wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
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return 0;
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}
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|
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static int wpa_driver_wext_event_wireless_pmkidcand(
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struct wpa_driver_wext_data *drv, const char *ev, size_t len)
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{
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const struct iw_pmkid_cand *cand;
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union wpa_event_data data;
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const u8 *addr;
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if (len < sizeof(*cand))
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return -1;
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cand = (const struct iw_pmkid_cand *) ev;
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addr = (const u8 *) cand->bssid.sa_data;
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wpa_printf(MSG_DEBUG, "PMKID candidate wireless event: "
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"flags=0x%x index=%d bssid=" MACSTR, cand->flags,
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cand->index, MAC2STR(addr));
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os_memset(&data, 0, sizeof(data));
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os_memcpy(data.pmkid_candidate.bssid, addr, ETH_ALEN);
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data.pmkid_candidate.index = cand->index;
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data.pmkid_candidate.preauth = cand->flags & IW_PMKID_CAND_PREAUTH;
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wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
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return 0;
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}
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|
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static int wpa_driver_wext_event_wireless_assocreqie(
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struct wpa_driver_wext_data *drv, const char *ev, int len)
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{
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if (len < 0)
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return -1;
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wpa_hexdump(MSG_DEBUG, "AssocReq IE wireless event", (const u8 *) ev,
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len);
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os_free(drv->assoc_req_ies);
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drv->assoc_req_ies = os_memdup(ev, len);
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if (drv->assoc_req_ies == NULL) {
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drv->assoc_req_ies_len = 0;
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return -1;
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}
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drv->assoc_req_ies_len = len;
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return 0;
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}
|
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|
|
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static int wpa_driver_wext_event_wireless_assocrespie(
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struct wpa_driver_wext_data *drv, const char *ev, int len)
|
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{
|
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if (len < 0)
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return -1;
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wpa_hexdump(MSG_DEBUG, "AssocResp IE wireless event", (const u8 *) ev,
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len);
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os_free(drv->assoc_resp_ies);
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drv->assoc_resp_ies = os_memdup(ev, len);
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if (drv->assoc_resp_ies == NULL) {
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drv->assoc_resp_ies_len = 0;
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return -1;
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}
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drv->assoc_resp_ies_len = len;
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return 0;
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}
|
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|
|
|
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static void wpa_driver_wext_event_assoc_ies(struct wpa_driver_wext_data *drv)
|
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{
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union wpa_event_data data;
|
|
|
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if (drv->assoc_req_ies == NULL && drv->assoc_resp_ies == NULL)
|
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return;
|
|
|
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os_memset(&data, 0, sizeof(data));
|
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if (drv->assoc_req_ies) {
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data.assoc_info.req_ies = drv->assoc_req_ies;
|
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data.assoc_info.req_ies_len = drv->assoc_req_ies_len;
|
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}
|
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if (drv->assoc_resp_ies) {
|
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data.assoc_info.resp_ies = drv->assoc_resp_ies;
|
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data.assoc_info.resp_ies_len = drv->assoc_resp_ies_len;
|
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}
|
|
|
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wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
|
|
|
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os_free(drv->assoc_req_ies);
|
|
drv->assoc_req_ies = NULL;
|
|
os_free(drv->assoc_resp_ies);
|
|
drv->assoc_resp_ies = NULL;
|
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}
|
|
|
|
|
|
static void wpa_driver_wext_event_wireless(struct wpa_driver_wext_data *drv,
|
|
char *data, unsigned int len)
|
|
{
|
|
struct iw_event iwe_buf, *iwe = &iwe_buf;
|
|
char *pos, *end, *custom, *buf;
|
|
|
|
pos = data;
|
|
end = data + len;
|
|
|
|
while ((size_t) (end - pos) >= IW_EV_LCP_LEN) {
|
|
/* Event data may be unaligned, so make a local, aligned copy
|
|
* before processing. */
|
|
os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
|
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wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
|
|
iwe->cmd, iwe->len);
|
|
if (iwe->len <= IW_EV_LCP_LEN || iwe->len > end - pos)
|
|
return;
|
|
|
|
custom = pos + IW_EV_POINT_LEN;
|
|
if (drv->we_version_compiled > 18 &&
|
|
(iwe->cmd == IWEVMICHAELMICFAILURE ||
|
|
iwe->cmd == IWEVCUSTOM ||
|
|
iwe->cmd == IWEVASSOCREQIE ||
|
|
iwe->cmd == IWEVASSOCRESPIE ||
|
|
iwe->cmd == IWEVPMKIDCAND)) {
|
|
/* WE-19 removed the pointer from struct iw_point */
|
|
char *dpos = (char *) &iwe_buf.u.data.length;
|
|
int dlen = dpos - (char *) &iwe_buf;
|
|
os_memcpy(dpos, pos + IW_EV_LCP_LEN,
|
|
sizeof(struct iw_event) - dlen);
|
|
} else {
|
|
os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
|
|
custom += IW_EV_POINT_OFF;
|
|
}
|
|
|
|
switch (iwe->cmd) {
|
|
case SIOCGIWAP:
|
|
wpa_printf(MSG_DEBUG, "Wireless event: new AP: "
|
|
MACSTR,
|
|
MAC2STR((u8 *) iwe->u.ap_addr.sa_data));
|
|
if (is_zero_ether_addr(
|
|
(const u8 *) iwe->u.ap_addr.sa_data) ||
|
|
os_memcmp(iwe->u.ap_addr.sa_data,
|
|
"\x44\x44\x44\x44\x44\x44", ETH_ALEN) ==
|
|
0) {
|
|
os_free(drv->assoc_req_ies);
|
|
drv->assoc_req_ies = NULL;
|
|
os_free(drv->assoc_resp_ies);
|
|
drv->assoc_resp_ies = NULL;
|
|
wpa_supplicant_event(drv->ctx, EVENT_DISASSOC,
|
|
NULL);
|
|
|
|
} else {
|
|
wpa_driver_wext_event_assoc_ies(drv);
|
|
wpa_supplicant_event(drv->ctx, EVENT_ASSOC,
|
|
NULL);
|
|
}
|
|
break;
|
|
case IWEVMICHAELMICFAILURE:
|
|
if (iwe->u.data.length > end - custom) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid "
|
|
"IWEVMICHAELMICFAILURE length");
|
|
return;
|
|
}
|
|
wpa_driver_wext_event_wireless_michaelmicfailure(
|
|
drv->ctx, custom, iwe->u.data.length);
|
|
break;
|
|
case IWEVCUSTOM:
|
|
if (iwe->u.data.length > end - custom) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid "
|
|
"IWEVCUSTOM length");
|
|
return;
|
|
}
|
|
buf = dup_binstr(custom, iwe->u.data.length);
|
|
if (buf == NULL)
|
|
return;
|
|
wpa_driver_wext_event_wireless_custom(drv->ctx, buf);
|
|
os_free(buf);
|
|
break;
|
|
case SIOCGIWSCAN:
|
|
drv->scan_complete_events = 1;
|
|
eloop_cancel_timeout(wpa_driver_wext_scan_timeout,
|
|
drv, drv->ctx);
|
|
wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS,
|
|
NULL);
|
|
break;
|
|
case IWEVASSOCREQIE:
|
|
if (iwe->u.data.length > end - custom) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid "
|
|
"IWEVASSOCREQIE length");
|
|
return;
|
|
}
|
|
wpa_driver_wext_event_wireless_assocreqie(
|
|
drv, custom, iwe->u.data.length);
|
|
break;
|
|
case IWEVASSOCRESPIE:
|
|
if (iwe->u.data.length > end - custom) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid "
|
|
"IWEVASSOCRESPIE length");
|
|
return;
|
|
}
|
|
wpa_driver_wext_event_wireless_assocrespie(
|
|
drv, custom, iwe->u.data.length);
|
|
break;
|
|
case IWEVPMKIDCAND:
|
|
if (iwe->u.data.length > end - custom) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid "
|
|
"IWEVPMKIDCAND length");
|
|
return;
|
|
}
|
|
wpa_driver_wext_event_wireless_pmkidcand(
|
|
drv, custom, iwe->u.data.length);
|
|
break;
|
|
}
|
|
|
|
pos += iwe->len;
|
|
}
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_event_link(struct wpa_driver_wext_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->ifname, event.interface_status.ifname) == 0) {
|
|
if (del) {
|
|
if (drv->if_removed) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: if_removed "
|
|
"already set - ignore event");
|
|
return;
|
|
}
|
|
drv->if_removed = 1;
|
|
} else {
|
|
if (if_nametoindex(drv->ifname) == 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Interface %s "
|
|
"does not exist - ignore "
|
|
"RTM_NEWLINK",
|
|
drv->ifname);
|
|
return;
|
|
}
|
|
if (!drv->if_removed) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: if_removed "
|
|
"already cleared - ignore event");
|
|
return;
|
|
}
|
|
drv->if_removed = 0;
|
|
}
|
|
}
|
|
|
|
wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_own_ifname(struct wpa_driver_wext_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->ifname)
|
|
== 0)
|
|
return 1;
|
|
else
|
|
break;
|
|
}
|
|
attr = RTA_NEXT(attr, attrlen);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_own_ifindex(struct wpa_driver_wext_data *drv,
|
|
int ifindex, u8 *buf, size_t len)
|
|
{
|
|
if (drv->ifindex == ifindex || drv->ifindex2 == ifindex)
|
|
return 1;
|
|
|
|
if (drv->if_removed && wpa_driver_wext_own_ifname(drv, buf, len)) {
|
|
drv->ifindex = if_nametoindex(drv->ifname);
|
|
wpa_printf(MSG_DEBUG, "WEXT: Update ifindex for a removed "
|
|
"interface");
|
|
wpa_driver_wext_finish_drv_init(drv);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_event_rtm_newlink(void *ctx, struct ifinfomsg *ifi,
|
|
u8 *buf, size_t len)
|
|
{
|
|
struct wpa_driver_wext_data *drv = ctx;
|
|
int attrlen, rta_len;
|
|
struct rtattr *attr;
|
|
char namebuf[IFNAMSIZ];
|
|
|
|
if (!wpa_driver_wext_own_ifindex(drv, ifi->ifi_index, buf, len)) {
|
|
wpa_printf(MSG_DEBUG, "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, "WEXT: Interface down");
|
|
drv->if_disabled = 1;
|
|
wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
|
|
}
|
|
|
|
if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
|
|
if (if_indextoname(ifi->ifi_index, namebuf) &&
|
|
linux_iface_up(drv->ioctl_sock, drv->ifname) == 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Ignore interface up "
|
|
"event since interface %s is down",
|
|
namebuf);
|
|
} else if (if_nametoindex(drv->ifname) == 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Ignore interface up "
|
|
"event since interface %s does not exist",
|
|
drv->ifname);
|
|
} else if (drv->if_removed) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Ignore interface up "
|
|
"event since interface %s is marked "
|
|
"removed", drv->ifname);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "WEXT: 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_wext_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_WIRELESS) {
|
|
wpa_driver_wext_event_wireless(
|
|
drv, ((char *) attr) + rta_len,
|
|
attr->rta_len - rta_len);
|
|
} else if (attr->rta_type == IFLA_IFNAME) {
|
|
wpa_driver_wext_event_link(drv,
|
|
((char *) attr) + rta_len,
|
|
attr->rta_len - rta_len, 0);
|
|
}
|
|
attr = RTA_NEXT(attr, attrlen);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_event_rtm_dellink(void *ctx, struct ifinfomsg *ifi,
|
|
u8 *buf, size_t len)
|
|
{
|
|
struct wpa_driver_wext_data *drv = ctx;
|
|
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) {
|
|
wpa_driver_wext_event_link(drv,
|
|
((char *) attr) + rta_len,
|
|
attr->rta_len - rta_len, 1);
|
|
}
|
|
attr = RTA_NEXT(attr, attrlen);
|
|
}
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_rfkill_blocked(void *ctx)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "WEXT: RFKILL blocked");
|
|
/*
|
|
* This may be for any interface; use ifdown event to disable
|
|
* interface.
|
|
*/
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_rfkill_unblocked(void *ctx)
|
|
{
|
|
struct wpa_driver_wext_data *drv = ctx;
|
|
wpa_printf(MSG_DEBUG, "WEXT: RFKILL unblocked");
|
|
if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1)) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Could not set interface UP "
|
|
"after rfkill unblock");
|
|
return;
|
|
}
|
|
/* rtnetlink ifup handler will report interface as enabled */
|
|
}
|
|
|
|
|
|
static void wext_get_phy_name(struct wpa_driver_wext_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->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, "wext: interface %s phy: %s",
|
|
drv->ifname, drv->phyname);
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_init - Initialize WE driver interface
|
|
* @ctx: context to be used when calling wpa_supplicant functions,
|
|
* e.g., wpa_supplicant_event()
|
|
* @ifname: interface name, e.g., wlan0
|
|
* Returns: Pointer to private data, %NULL on failure
|
|
*/
|
|
void * wpa_driver_wext_init(void *ctx, const char *ifname)
|
|
{
|
|
struct wpa_driver_wext_data *drv;
|
|
struct netlink_config *cfg;
|
|
struct rfkill_config *rcfg;
|
|
char path[128];
|
|
struct stat buf;
|
|
|
|
drv = os_zalloc(sizeof(*drv));
|
|
if (drv == NULL)
|
|
return NULL;
|
|
drv->ctx = ctx;
|
|
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
|
|
|
|
os_snprintf(path, sizeof(path), "/sys/class/net/%s/phy80211", ifname);
|
|
if (stat(path, &buf) == 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: cfg80211-based driver detected");
|
|
drv->cfg80211 = 1;
|
|
wext_get_phy_name(drv);
|
|
}
|
|
|
|
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
|
|
if (drv->ioctl_sock < 0) {
|
|
wpa_printf(MSG_ERROR, "socket(PF_INET,SOCK_DGRAM): %s",
|
|
strerror(errno));
|
|
goto err1;
|
|
}
|
|
|
|
cfg = os_zalloc(sizeof(*cfg));
|
|
if (cfg == NULL)
|
|
goto err1;
|
|
cfg->ctx = drv;
|
|
cfg->newlink_cb = wpa_driver_wext_event_rtm_newlink;
|
|
cfg->dellink_cb = wpa_driver_wext_event_rtm_dellink;
|
|
drv->netlink = netlink_init(cfg);
|
|
if (drv->netlink == NULL) {
|
|
os_free(cfg);
|
|
goto err2;
|
|
}
|
|
|
|
rcfg = os_zalloc(sizeof(*rcfg));
|
|
if (rcfg == NULL)
|
|
goto err3;
|
|
rcfg->ctx = drv;
|
|
os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
|
|
rcfg->blocked_cb = wpa_driver_wext_rfkill_blocked;
|
|
rcfg->unblocked_cb = wpa_driver_wext_rfkill_unblocked;
|
|
drv->rfkill = rfkill_init(rcfg);
|
|
if (drv->rfkill == NULL) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: RFKILL status not available");
|
|
os_free(rcfg);
|
|
}
|
|
|
|
drv->mlme_sock = -1;
|
|
|
|
if (wpa_driver_wext_finish_drv_init(drv) < 0)
|
|
goto err3;
|
|
|
|
wpa_driver_wext_set_auth_param(drv, IW_AUTH_WPA_ENABLED, 1);
|
|
|
|
return drv;
|
|
|
|
err3:
|
|
rfkill_deinit(drv->rfkill);
|
|
netlink_deinit(drv->netlink);
|
|
err2:
|
|
close(drv->ioctl_sock);
|
|
err1:
|
|
os_free(drv);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_send_rfkill(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
|
|
}
|
|
|
|
|
|
static int wext_hostap_ifname(struct wpa_driver_wext_data *drv,
|
|
const char *ifname)
|
|
{
|
|
char buf[200], *res;
|
|
int type, ret;
|
|
FILE *f;
|
|
|
|
if (strcmp(ifname, ".") == 0 || strcmp(ifname, "..") == 0)
|
|
return -1;
|
|
|
|
ret = snprintf(buf, sizeof(buf), "/sys/class/net/%s/device/net/%s/type",
|
|
drv->ifname, ifname);
|
|
if (os_snprintf_error(sizeof(buf), ret))
|
|
return -1;
|
|
|
|
f = fopen(buf, "r");
|
|
if (!f)
|
|
return -1;
|
|
res = fgets(buf, sizeof(buf), f);
|
|
fclose(f);
|
|
|
|
type = res ? atoi(res) : -1;
|
|
wpa_printf(MSG_DEBUG, "WEXT: hostap ifname %s type %d", ifname, type);
|
|
|
|
if (type == ARPHRD_IEEE80211) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"WEXT: Found hostap driver wifi# interface (%s)",
|
|
ifname);
|
|
wpa_driver_wext_alternative_ifindex(drv, ifname);
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
static int wext_add_hostap(struct wpa_driver_wext_data *drv)
|
|
{
|
|
char buf[200];
|
|
int n;
|
|
struct dirent **names;
|
|
int ret = -1;
|
|
|
|
snprintf(buf, sizeof(buf), "/sys/class/net/%s/device/net", drv->ifname);
|
|
n = scandir(buf, &names, NULL, alphasort);
|
|
if (n < 0)
|
|
return -1;
|
|
|
|
while (n--) {
|
|
if (ret < 0 && wext_hostap_ifname(drv, names[n]->d_name) == 0)
|
|
ret = 0;
|
|
free(names[n]);
|
|
}
|
|
free(names);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void wext_check_hostap(struct wpa_driver_wext_data *drv)
|
|
{
|
|
char path[200], buf[200], *pos;
|
|
ssize_t res;
|
|
|
|
/*
|
|
* Host AP driver may use both wlan# and wifi# interface in wireless
|
|
* events. Since some of the versions included WE-18 support, let's add
|
|
* the alternative ifindex also from driver_wext.c for the time being.
|
|
* This may be removed at some point once it is believed that old
|
|
* versions of the driver are not in use anymore. However, it looks like
|
|
* the wifi# interface is still used in the current kernel tree, so it
|
|
* may not really be possible to remove this before the Host AP driver
|
|
* gets removed from the kernel.
|
|
*/
|
|
|
|
/* First, try to see if driver information is available from sysfs */
|
|
snprintf(path, sizeof(path), "/sys/class/net/%s/device/driver",
|
|
drv->ifname);
|
|
res = readlink(path, buf, sizeof(buf) - 1);
|
|
if (res > 0) {
|
|
buf[res] = '\0';
|
|
pos = strrchr(buf, '/');
|
|
if (pos)
|
|
pos++;
|
|
else
|
|
pos = buf;
|
|
wpa_printf(MSG_DEBUG, "WEXT: Driver: %s", pos);
|
|
if (os_strncmp(pos, "hostap", 6) == 0 &&
|
|
wext_add_hostap(drv) == 0)
|
|
return;
|
|
}
|
|
|
|
/* Second, use the old design with hardcoded ifname */
|
|
if (os_strncmp(drv->ifname, "wlan", 4) == 0) {
|
|
char ifname2[IFNAMSIZ + 1];
|
|
os_strlcpy(ifname2, drv->ifname, sizeof(ifname2));
|
|
os_memcpy(ifname2, "wifi", 4);
|
|
wpa_driver_wext_alternative_ifindex(drv, ifname2);
|
|
}
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
|
|
{
|
|
int send_rfkill_event = 0;
|
|
int i;
|
|
|
|
if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1) < 0) {
|
|
if (rfkill_is_blocked(drv->rfkill)) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Could not yet enable "
|
|
"interface '%s' due to rfkill",
|
|
drv->ifname);
|
|
drv->if_disabled = 1;
|
|
send_rfkill_event = 1;
|
|
} else {
|
|
wpa_printf(MSG_ERROR, "WEXT: Could not set "
|
|
"interface '%s' UP", drv->ifname);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Make sure that the driver does not have any obsolete PMKID entries.
|
|
*/
|
|
wpa_driver_wext_flush_pmkid(drv);
|
|
|
|
if (wpa_driver_wext_set_mode(drv, 0) < 0) {
|
|
wpa_printf(MSG_DEBUG, "Could not configure driver to use "
|
|
"managed mode");
|
|
/* Try to use it anyway */
|
|
}
|
|
|
|
wpa_driver_wext_get_range(drv);
|
|
|
|
/* Update per interface supported AKMs */
|
|
for (i = 0; i < WPA_IF_MAX; i++)
|
|
drv->capa.key_mgmt_iftype[i] = drv->capa.key_mgmt;
|
|
|
|
/*
|
|
* Unlock the driver's BSSID and force to a random SSID to clear any
|
|
* previous association the driver might have when the supplicant
|
|
* starts up.
|
|
*/
|
|
wpa_driver_wext_disconnect(drv);
|
|
|
|
drv->ifindex = if_nametoindex(drv->ifname);
|
|
|
|
wext_check_hostap(drv);
|
|
|
|
netlink_send_oper_ifla(drv->netlink, drv->ifindex,
|
|
1, IF_OPER_DORMANT);
|
|
|
|
if (send_rfkill_event) {
|
|
eloop_register_timeout(0, 0, wpa_driver_wext_send_rfkill,
|
|
drv, drv->ctx);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_deinit - Deinitialize WE driver interface
|
|
* @priv: Pointer to private wext data from wpa_driver_wext_init()
|
|
*
|
|
* Shut down driver interface and processing of driver events. Free
|
|
* private data buffer if one was allocated in wpa_driver_wext_init().
|
|
*/
|
|
void wpa_driver_wext_deinit(void *priv)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
|
|
wpa_driver_wext_set_auth_param(drv, IW_AUTH_WPA_ENABLED, 0);
|
|
|
|
eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
|
|
eloop_cancel_timeout(wpa_driver_wext_send_rfkill, drv, drv->ctx);
|
|
|
|
/*
|
|
* Clear possibly configured driver parameters in order to make it
|
|
* easier to use the driver after wpa_supplicant has been terminated.
|
|
*/
|
|
wpa_driver_wext_disconnect(drv);
|
|
|
|
netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
|
|
netlink_deinit(drv->netlink);
|
|
rfkill_deinit(drv->rfkill);
|
|
|
|
if (drv->mlme_sock >= 0)
|
|
eloop_unregister_read_sock(drv->mlme_sock);
|
|
|
|
(void) linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 0);
|
|
|
|
close(drv->ioctl_sock);
|
|
if (drv->mlme_sock >= 0)
|
|
close(drv->mlme_sock);
|
|
os_free(drv->assoc_req_ies);
|
|
os_free(drv->assoc_resp_ies);
|
|
os_free(drv);
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_scan_timeout - Scan timeout to report scan completion
|
|
* @eloop_ctx: Unused
|
|
* @timeout_ctx: ctx argument given to wpa_driver_wext_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.
|
|
*/
|
|
void wpa_driver_wext_scan_timeout(void *eloop_ctx, void *timeout_ctx)
|
|
{
|
|
wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
|
|
wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_scan - Request the driver to initiate scan
|
|
* @priv: Pointer to private wext data from wpa_driver_wext_init()
|
|
* @param: Scan parameters (specific SSID to scan for (ProbeReq), etc.)
|
|
* Returns: 0 on success, -1 on failure
|
|
*/
|
|
int wpa_driver_wext_scan(void *priv, struct wpa_driver_scan_params *params)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iwreq iwr;
|
|
int ret = 0, timeout;
|
|
struct iw_scan_req req;
|
|
const u8 *ssid = params->ssids[0].ssid;
|
|
size_t ssid_len = params->ssids[0].ssid_len;
|
|
|
|
if (ssid_len > IW_ESSID_MAX_SIZE) {
|
|
wpa_printf(MSG_DEBUG, "%s: too long SSID (%lu)",
|
|
__FUNCTION__, (unsigned long) ssid_len);
|
|
return -1;
|
|
}
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
|
|
if (ssid && ssid_len) {
|
|
os_memset(&req, 0, sizeof(req));
|
|
req.essid_len = ssid_len;
|
|
req.bssid.sa_family = ARPHRD_ETHER;
|
|
os_memset(req.bssid.sa_data, 0xff, ETH_ALEN);
|
|
os_memcpy(req.essid, ssid, ssid_len);
|
|
iwr.u.data.pointer = (caddr_t) &req;
|
|
iwr.u.data.length = sizeof(req);
|
|
iwr.u.data.flags = IW_SCAN_THIS_ESSID;
|
|
}
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWSCAN]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
/* 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 SIOCGIWSCAN 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_wext_scan_timeout, drv, drv->ctx);
|
|
eloop_register_timeout(timeout, 0, wpa_driver_wext_scan_timeout, drv,
|
|
drv->ctx);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static u8 * wpa_driver_wext_giwscan(struct wpa_driver_wext_data *drv,
|
|
size_t *len)
|
|
{
|
|
struct iwreq iwr;
|
|
u8 *res_buf;
|
|
size_t res_buf_len;
|
|
|
|
res_buf_len = IW_SCAN_MAX_DATA;
|
|
for (;;) {
|
|
res_buf = os_malloc(res_buf_len);
|
|
if (res_buf == NULL)
|
|
return NULL;
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.data.pointer = res_buf;
|
|
iwr.u.data.length = res_buf_len;
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
|
|
break;
|
|
|
|
if (errno == E2BIG && res_buf_len < 65535) {
|
|
os_free(res_buf);
|
|
res_buf = NULL;
|
|
res_buf_len *= 2;
|
|
if (res_buf_len > 65535)
|
|
res_buf_len = 65535; /* 16-bit length field */
|
|
wpa_printf(MSG_DEBUG, "Scan results did not fit - "
|
|
"trying larger buffer (%lu bytes)",
|
|
(unsigned long) res_buf_len);
|
|
} else {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCGIWSCAN]: %s",
|
|
strerror(errno));
|
|
os_free(res_buf);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (iwr.u.data.length > res_buf_len) {
|
|
os_free(res_buf);
|
|
return NULL;
|
|
}
|
|
*len = iwr.u.data.length;
|
|
|
|
return res_buf;
|
|
}
|
|
|
|
|
|
/*
|
|
* Data structure for collecting WEXT scan results. This is needed to allow
|
|
* the various methods of reporting IEs to be combined into a single IE buffer.
|
|
*/
|
|
struct wext_scan_data {
|
|
struct wpa_scan_res res;
|
|
u8 *ie;
|
|
size_t ie_len;
|
|
u8 ssid[SSID_MAX_LEN];
|
|
size_t ssid_len;
|
|
int maxrate;
|
|
};
|
|
|
|
|
|
static void wext_get_scan_mode(struct iw_event *iwe,
|
|
struct wext_scan_data *res)
|
|
{
|
|
if (iwe->u.mode == IW_MODE_ADHOC)
|
|
res->res.caps |= IEEE80211_CAP_IBSS;
|
|
else if (iwe->u.mode == IW_MODE_MASTER || iwe->u.mode == IW_MODE_INFRA)
|
|
res->res.caps |= IEEE80211_CAP_ESS;
|
|
}
|
|
|
|
|
|
static void wext_get_scan_ssid(struct iw_event *iwe,
|
|
struct wext_scan_data *res, char *custom,
|
|
char *end)
|
|
{
|
|
int ssid_len = iwe->u.essid.length;
|
|
if (ssid_len > end - custom)
|
|
return;
|
|
if (iwe->u.essid.flags &&
|
|
ssid_len > 0 &&
|
|
ssid_len <= IW_ESSID_MAX_SIZE) {
|
|
os_memcpy(res->ssid, custom, ssid_len);
|
|
res->ssid_len = ssid_len;
|
|
}
|
|
}
|
|
|
|
|
|
static void wext_get_scan_freq(struct iw_event *iwe,
|
|
struct wext_scan_data *res)
|
|
{
|
|
int divi = 1000000, i;
|
|
|
|
if (iwe->u.freq.e == 0) {
|
|
/*
|
|
* Some drivers do not report frequency, but a channel.
|
|
* Try to map this to frequency by assuming they are using
|
|
* IEEE 802.11b/g. But don't overwrite a previously parsed
|
|
* frequency if the driver sends both frequency and channel,
|
|
* since the driver may be sending an A-band channel that we
|
|
* don't handle here.
|
|
*/
|
|
|
|
if (res->res.freq)
|
|
return;
|
|
|
|
if (iwe->u.freq.m >= 1 && iwe->u.freq.m <= 13) {
|
|
res->res.freq = 2407 + 5 * iwe->u.freq.m;
|
|
return;
|
|
} else if (iwe->u.freq.m == 14) {
|
|
res->res.freq = 2484;
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (iwe->u.freq.e > 6) {
|
|
wpa_printf(MSG_DEBUG, "Invalid freq in scan results (BSSID="
|
|
MACSTR " m=%d e=%d)",
|
|
MAC2STR(res->res.bssid), iwe->u.freq.m,
|
|
iwe->u.freq.e);
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < iwe->u.freq.e; i++)
|
|
divi /= 10;
|
|
res->res.freq = iwe->u.freq.m / divi;
|
|
}
|
|
|
|
|
|
static void wext_get_scan_qual(struct wpa_driver_wext_data *drv,
|
|
struct iw_event *iwe,
|
|
struct wext_scan_data *res)
|
|
{
|
|
res->res.qual = iwe->u.qual.qual;
|
|
res->res.noise = iwe->u.qual.noise;
|
|
res->res.level = iwe->u.qual.level;
|
|
if (iwe->u.qual.updated & IW_QUAL_QUAL_INVALID)
|
|
res->res.flags |= WPA_SCAN_QUAL_INVALID;
|
|
if (iwe->u.qual.updated & IW_QUAL_LEVEL_INVALID)
|
|
res->res.flags |= WPA_SCAN_LEVEL_INVALID;
|
|
if (iwe->u.qual.updated & IW_QUAL_NOISE_INVALID)
|
|
res->res.flags |= WPA_SCAN_NOISE_INVALID;
|
|
if (iwe->u.qual.updated & IW_QUAL_DBM)
|
|
res->res.flags |= WPA_SCAN_LEVEL_DBM;
|
|
if ((iwe->u.qual.updated & IW_QUAL_DBM) ||
|
|
((iwe->u.qual.level != 0) &&
|
|
(iwe->u.qual.level > drv->max_level))) {
|
|
if (iwe->u.qual.level >= 64)
|
|
res->res.level -= 0x100;
|
|
if (iwe->u.qual.noise >= 64)
|
|
res->res.noise -= 0x100;
|
|
}
|
|
}
|
|
|
|
|
|
static void wext_get_scan_encode(struct iw_event *iwe,
|
|
struct wext_scan_data *res)
|
|
{
|
|
if (!(iwe->u.data.flags & IW_ENCODE_DISABLED))
|
|
res->res.caps |= IEEE80211_CAP_PRIVACY;
|
|
}
|
|
|
|
|
|
static void wext_get_scan_rate(struct iw_event *iwe,
|
|
struct wext_scan_data *res, char *pos,
|
|
char *end)
|
|
{
|
|
int maxrate;
|
|
char *custom = pos + IW_EV_LCP_LEN;
|
|
struct iw_param p;
|
|
size_t clen;
|
|
|
|
clen = iwe->len;
|
|
if (clen > (size_t) (end - custom))
|
|
return;
|
|
maxrate = 0;
|
|
while (((ssize_t) clen) >= (ssize_t) sizeof(struct iw_param)) {
|
|
/* Note: may be misaligned, make a local, aligned copy */
|
|
os_memcpy(&p, custom, sizeof(struct iw_param));
|
|
if (p.value > maxrate)
|
|
maxrate = p.value;
|
|
clen -= sizeof(struct iw_param);
|
|
custom += sizeof(struct iw_param);
|
|
}
|
|
|
|
/* Convert the maxrate from WE-style (b/s units) to
|
|
* 802.11 rates (500000 b/s units).
|
|
*/
|
|
res->maxrate = maxrate / 500000;
|
|
}
|
|
|
|
|
|
static void wext_get_scan_iwevgenie(struct iw_event *iwe,
|
|
struct wext_scan_data *res, char *custom,
|
|
char *end)
|
|
{
|
|
char *genie, *gpos, *gend;
|
|
u8 *tmp;
|
|
|
|
if (iwe->u.data.length == 0)
|
|
return;
|
|
|
|
gpos = genie = custom;
|
|
gend = genie + iwe->u.data.length;
|
|
if (gend > end) {
|
|
wpa_printf(MSG_INFO, "IWEVGENIE overflow");
|
|
return;
|
|
}
|
|
|
|
tmp = os_realloc(res->ie, res->ie_len + gend - gpos);
|
|
if (tmp == NULL)
|
|
return;
|
|
os_memcpy(tmp + res->ie_len, gpos, gend - gpos);
|
|
res->ie = tmp;
|
|
res->ie_len += gend - gpos;
|
|
}
|
|
|
|
|
|
static void wext_get_scan_custom(struct iw_event *iwe,
|
|
struct wext_scan_data *res, char *custom,
|
|
char *end)
|
|
{
|
|
size_t clen;
|
|
u8 *tmp;
|
|
|
|
clen = iwe->u.data.length;
|
|
if (clen > (size_t) (end - custom))
|
|
return;
|
|
|
|
if (clen > 7 && os_strncmp(custom, "wpa_ie=", 7) == 0) {
|
|
char *spos;
|
|
int bytes;
|
|
spos = custom + 7;
|
|
bytes = custom + clen - spos;
|
|
if (bytes & 1 || bytes == 0)
|
|
return;
|
|
bytes /= 2;
|
|
tmp = os_realloc(res->ie, res->ie_len + bytes);
|
|
if (tmp == NULL)
|
|
return;
|
|
res->ie = tmp;
|
|
if (hexstr2bin(spos, tmp + res->ie_len, bytes) < 0)
|
|
return;
|
|
res->ie_len += bytes;
|
|
} else if (clen > 7 && os_strncmp(custom, "rsn_ie=", 7) == 0) {
|
|
char *spos;
|
|
int bytes;
|
|
spos = custom + 7;
|
|
bytes = custom + clen - spos;
|
|
if (bytes & 1 || bytes == 0)
|
|
return;
|
|
bytes /= 2;
|
|
tmp = os_realloc(res->ie, res->ie_len + bytes);
|
|
if (tmp == NULL)
|
|
return;
|
|
res->ie = tmp;
|
|
if (hexstr2bin(spos, tmp + res->ie_len, bytes) < 0)
|
|
return;
|
|
res->ie_len += bytes;
|
|
} else if (clen > 4 && os_strncmp(custom, "tsf=", 4) == 0) {
|
|
char *spos;
|
|
int bytes;
|
|
u8 bin[8];
|
|
spos = custom + 4;
|
|
bytes = custom + clen - spos;
|
|
if (bytes != 16) {
|
|
wpa_printf(MSG_INFO, "Invalid TSF length (%d)", bytes);
|
|
return;
|
|
}
|
|
bytes /= 2;
|
|
if (hexstr2bin(spos, bin, bytes) < 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Invalid TSF value");
|
|
return;
|
|
}
|
|
res->res.tsf += WPA_GET_BE64(bin);
|
|
}
|
|
}
|
|
|
|
|
|
static int wext_19_iw_point(struct wpa_driver_wext_data *drv, u16 cmd)
|
|
{
|
|
return drv->we_version_compiled > 18 &&
|
|
(cmd == SIOCGIWESSID || cmd == SIOCGIWENCODE ||
|
|
cmd == IWEVGENIE || cmd == IWEVCUSTOM);
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_add_scan_entry(struct wpa_scan_results *res,
|
|
struct wext_scan_data *data)
|
|
{
|
|
struct wpa_scan_res **tmp;
|
|
struct wpa_scan_res *r;
|
|
size_t extra_len;
|
|
u8 *pos, *end, *ssid_ie = NULL, *rate_ie = NULL;
|
|
|
|
/* Figure out whether we need to fake any IEs */
|
|
pos = data->ie;
|
|
end = pos + data->ie_len;
|
|
while (pos && end - pos > 1) {
|
|
if (2 + pos[1] > end - pos)
|
|
break;
|
|
if (pos[0] == WLAN_EID_SSID)
|
|
ssid_ie = pos;
|
|
else if (pos[0] == WLAN_EID_SUPP_RATES)
|
|
rate_ie = pos;
|
|
else if (pos[0] == WLAN_EID_EXT_SUPP_RATES)
|
|
rate_ie = pos;
|
|
pos += 2 + pos[1];
|
|
}
|
|
|
|
extra_len = 0;
|
|
if (ssid_ie == NULL)
|
|
extra_len += 2 + data->ssid_len;
|
|
if (rate_ie == NULL && data->maxrate)
|
|
extra_len += 3;
|
|
|
|
r = os_zalloc(sizeof(*r) + extra_len + data->ie_len);
|
|
if (r == NULL)
|
|
return;
|
|
os_memcpy(r, &data->res, sizeof(*r));
|
|
r->ie_len = extra_len + data->ie_len;
|
|
pos = (u8 *) (r + 1);
|
|
if (ssid_ie == NULL) {
|
|
/*
|
|
* Generate a fake SSID IE since the driver did not report
|
|
* a full IE list.
|
|
*/
|
|
*pos++ = WLAN_EID_SSID;
|
|
*pos++ = data->ssid_len;
|
|
os_memcpy(pos, data->ssid, data->ssid_len);
|
|
pos += data->ssid_len;
|
|
}
|
|
if (rate_ie == NULL && data->maxrate) {
|
|
/*
|
|
* Generate a fake Supported Rates IE since the driver did not
|
|
* report a full IE list.
|
|
*/
|
|
*pos++ = WLAN_EID_SUPP_RATES;
|
|
*pos++ = 1;
|
|
*pos++ = data->maxrate;
|
|
}
|
|
if (data->ie)
|
|
os_memcpy(pos, data->ie, data->ie_len);
|
|
|
|
tmp = os_realloc_array(res->res, res->num + 1,
|
|
sizeof(struct wpa_scan_res *));
|
|
if (tmp == NULL) {
|
|
os_free(r);
|
|
return;
|
|
}
|
|
tmp[res->num++] = r;
|
|
res->res = tmp;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_get_scan_results - Fetch the latest scan results
|
|
* @priv: Pointer to private wext data from wpa_driver_wext_init()
|
|
* Returns: Scan results on success, -1 on failure
|
|
*/
|
|
struct wpa_scan_results * wpa_driver_wext_get_scan_results(void *priv)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
size_t len;
|
|
int first;
|
|
u8 *res_buf;
|
|
struct iw_event iwe_buf, *iwe = &iwe_buf;
|
|
char *pos, *end, *custom;
|
|
struct wpa_scan_results *res;
|
|
struct wext_scan_data data;
|
|
|
|
res_buf = wpa_driver_wext_giwscan(drv, &len);
|
|
if (res_buf == NULL)
|
|
return NULL;
|
|
|
|
first = 1;
|
|
|
|
res = os_zalloc(sizeof(*res));
|
|
if (res == NULL) {
|
|
os_free(res_buf);
|
|
return NULL;
|
|
}
|
|
|
|
pos = (char *) res_buf;
|
|
end = (char *) res_buf + len;
|
|
os_memset(&data, 0, sizeof(data));
|
|
|
|
while ((size_t) (end - pos) >= IW_EV_LCP_LEN) {
|
|
/* Event data may be unaligned, so make a local, aligned copy
|
|
* before processing. */
|
|
os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
|
|
if (iwe->len <= IW_EV_LCP_LEN || iwe->len > end - pos)
|
|
break;
|
|
|
|
custom = pos + IW_EV_POINT_LEN;
|
|
if (wext_19_iw_point(drv, iwe->cmd)) {
|
|
/* WE-19 removed the pointer from struct iw_point */
|
|
char *dpos = (char *) &iwe_buf.u.data.length;
|
|
int dlen = dpos - (char *) &iwe_buf;
|
|
os_memcpy(dpos, pos + IW_EV_LCP_LEN,
|
|
sizeof(struct iw_event) - dlen);
|
|
} else {
|
|
os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
|
|
custom += IW_EV_POINT_OFF;
|
|
}
|
|
|
|
switch (iwe->cmd) {
|
|
case SIOCGIWAP:
|
|
if (!first)
|
|
wpa_driver_wext_add_scan_entry(res, &data);
|
|
first = 0;
|
|
os_free(data.ie);
|
|
os_memset(&data, 0, sizeof(data));
|
|
os_memcpy(data.res.bssid,
|
|
iwe->u.ap_addr.sa_data, ETH_ALEN);
|
|
break;
|
|
case SIOCGIWMODE:
|
|
wext_get_scan_mode(iwe, &data);
|
|
break;
|
|
case SIOCGIWESSID:
|
|
wext_get_scan_ssid(iwe, &data, custom, end);
|
|
break;
|
|
case SIOCGIWFREQ:
|
|
wext_get_scan_freq(iwe, &data);
|
|
break;
|
|
case IWEVQUAL:
|
|
wext_get_scan_qual(drv, iwe, &data);
|
|
break;
|
|
case SIOCGIWENCODE:
|
|
wext_get_scan_encode(iwe, &data);
|
|
break;
|
|
case SIOCGIWRATE:
|
|
wext_get_scan_rate(iwe, &data, pos, end);
|
|
break;
|
|
case IWEVGENIE:
|
|
wext_get_scan_iwevgenie(iwe, &data, custom, end);
|
|
break;
|
|
case IWEVCUSTOM:
|
|
wext_get_scan_custom(iwe, &data, custom, end);
|
|
break;
|
|
}
|
|
|
|
pos += iwe->len;
|
|
}
|
|
os_free(res_buf);
|
|
res_buf = NULL;
|
|
if (!first)
|
|
wpa_driver_wext_add_scan_entry(res, &data);
|
|
os_free(data.ie);
|
|
|
|
wpa_printf(MSG_DEBUG, "Received %lu bytes of scan results (%lu BSSes)",
|
|
(unsigned long) len, (unsigned long) res->num);
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_get_range(void *priv)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iw_range *range;
|
|
struct iwreq iwr;
|
|
int minlen;
|
|
size_t buflen;
|
|
|
|
/*
|
|
* Use larger buffer than struct iw_range in order to allow the
|
|
* structure to grow in the future.
|
|
*/
|
|
buflen = sizeof(struct iw_range) + 500;
|
|
range = os_zalloc(buflen);
|
|
if (range == NULL)
|
|
return -1;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.data.pointer = (caddr_t) range;
|
|
iwr.u.data.length = buflen;
|
|
|
|
minlen = ((char *) &range->enc_capa) - (char *) range +
|
|
sizeof(range->enc_capa);
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCGIWRANGE]: %s",
|
|
strerror(errno));
|
|
os_free(range);
|
|
return -1;
|
|
} else if (iwr.u.data.length >= minlen &&
|
|
range->we_version_compiled >= 18) {
|
|
wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
|
|
"WE(source)=%d enc_capa=0x%x",
|
|
range->we_version_compiled,
|
|
range->we_version_source,
|
|
range->enc_capa);
|
|
drv->has_capability = 1;
|
|
drv->we_version_compiled = range->we_version_compiled;
|
|
if (range->enc_capa & IW_ENC_CAPA_WPA) {
|
|
drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
|
|
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
|
|
}
|
|
if (range->enc_capa & IW_ENC_CAPA_WPA2) {
|
|
drv->capa.key_mgmt |= 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;
|
|
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP128;
|
|
if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
|
|
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
|
|
if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
|
|
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
|
|
if (range->enc_capa & IW_ENC_CAPA_4WAY_HANDSHAKE)
|
|
drv->capa.flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK |
|
|
WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X;
|
|
drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
|
|
WPA_DRIVER_AUTH_SHARED |
|
|
WPA_DRIVER_AUTH_LEAP;
|
|
drv->capa.max_scan_ssids = 1;
|
|
|
|
wpa_printf(MSG_DEBUG, " capabilities: key_mgmt 0x%x enc 0x%x "
|
|
"flags 0x%llx",
|
|
drv->capa.key_mgmt, drv->capa.enc,
|
|
(unsigned long long) drv->capa.flags);
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: too old (short) data - "
|
|
"assuming WPA is not supported");
|
|
}
|
|
|
|
drv->max_level = range->max_qual.level;
|
|
|
|
os_free(range);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_psk(struct wpa_driver_wext_data *drv,
|
|
const u8 *psk)
|
|
{
|
|
struct iw_encode_ext *ext;
|
|
struct iwreq iwr;
|
|
int ret;
|
|
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
|
|
if (!(drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
|
|
return 0;
|
|
|
|
if (!psk)
|
|
return 0;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
|
|
ext = os_zalloc(sizeof(*ext) + PMK_LEN);
|
|
if (ext == NULL)
|
|
return -1;
|
|
|
|
iwr.u.encoding.pointer = (caddr_t) ext;
|
|
iwr.u.encoding.length = sizeof(*ext) + PMK_LEN;
|
|
ext->key_len = PMK_LEN;
|
|
os_memcpy(&ext->key, psk, ext->key_len);
|
|
ext->alg = IW_ENCODE_ALG_PMK;
|
|
|
|
ret = ioctl(drv->ioctl_sock, SIOCSIWENCODEEXT, &iwr);
|
|
if (ret < 0)
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWENCODEEXT] PMK: %s",
|
|
strerror(errno));
|
|
os_free(ext);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_key_ext(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,
|
|
enum key_flag key_flag)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iwreq iwr;
|
|
int ret = 0;
|
|
struct iw_encode_ext *ext;
|
|
|
|
if (seq_len > IW_ENCODE_SEQ_MAX_SIZE) {
|
|
wpa_printf(MSG_DEBUG, "%s: Invalid seq_len %lu",
|
|
__FUNCTION__, (unsigned long) seq_len);
|
|
return -1;
|
|
}
|
|
|
|
ext = os_zalloc(sizeof(*ext) + key_len);
|
|
if (ext == NULL)
|
|
return -1;
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.encoding.flags = key_idx + 1;
|
|
iwr.u.encoding.flags |= IW_ENCODE_TEMP;
|
|
if (alg == WPA_ALG_NONE)
|
|
iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
|
|
iwr.u.encoding.pointer = (caddr_t) ext;
|
|
iwr.u.encoding.length = sizeof(*ext) + key_len;
|
|
|
|
if (addr == NULL || is_broadcast_ether_addr(addr))
|
|
ext->ext_flags |= IW_ENCODE_EXT_GROUP_KEY;
|
|
if (set_tx)
|
|
ext->ext_flags |= IW_ENCODE_EXT_SET_TX_KEY;
|
|
|
|
ext->addr.sa_family = ARPHRD_ETHER;
|
|
if (addr)
|
|
os_memcpy(ext->addr.sa_data, addr, ETH_ALEN);
|
|
else
|
|
os_memset(ext->addr.sa_data, 0xff, ETH_ALEN);
|
|
if (key && key_len) {
|
|
os_memcpy(ext + 1, key, key_len);
|
|
ext->key_len = key_len;
|
|
}
|
|
if (key_flag & KEY_FLAG_PMK) {
|
|
ext->alg = IW_ENCODE_ALG_PMK;
|
|
} else {
|
|
switch (alg) {
|
|
case WPA_ALG_NONE:
|
|
ext->alg = IW_ENCODE_ALG_NONE;
|
|
break;
|
|
case WPA_ALG_WEP:
|
|
ext->alg = IW_ENCODE_ALG_WEP;
|
|
break;
|
|
case WPA_ALG_TKIP:
|
|
ext->alg = IW_ENCODE_ALG_TKIP;
|
|
break;
|
|
case WPA_ALG_CCMP:
|
|
ext->alg = IW_ENCODE_ALG_CCMP;
|
|
break;
|
|
case WPA_ALG_BIP_CMAC_128:
|
|
ext->alg = IW_ENCODE_ALG_AES_CMAC;
|
|
break;
|
|
default:
|
|
wpa_printf(MSG_DEBUG, "%s: Unknown algorithm %d",
|
|
__FUNCTION__, alg);
|
|
os_free(ext);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (seq && seq_len) {
|
|
ext->ext_flags |= IW_ENCODE_EXT_RX_SEQ_VALID;
|
|
os_memcpy(ext->rx_seq, seq, seq_len);
|
|
}
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWENCODEEXT, &iwr) < 0) {
|
|
ret = errno == EOPNOTSUPP ? -2 : -1;
|
|
if (errno == ENODEV) {
|
|
/*
|
|
* ndiswrapper seems to be returning incorrect error
|
|
* code.. */
|
|
ret = -2;
|
|
}
|
|
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWENCODEEXT]: %s",
|
|
strerror(errno));
|
|
}
|
|
|
|
os_free(ext);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_set_key - Configure encryption key
|
|
* @priv: Pointer to private wext data from wpa_driver_wext_init()
|
|
* @params: Key parameters
|
|
* Returns: 0 on success, -1 on failure
|
|
*
|
|
* This function uses SIOCSIWENCODEEXT by default, but tries to use
|
|
* SIOCSIWENCODE if the extended ioctl fails when configuring a WEP key.
|
|
*/
|
|
static int wpa_driver_wext_set_key(void *priv,
|
|
struct wpa_driver_set_key_params *params)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iwreq iwr;
|
|
int ret = 0;
|
|
enum wpa_alg alg = params->alg;
|
|
enum key_flag key_flag = params->key_flag;
|
|
const u8 *addr = params->addr;
|
|
int key_idx = params->key_idx;
|
|
int set_tx = params->set_tx;
|
|
const u8 *seq = params->seq;
|
|
size_t seq_len = params->seq_len;
|
|
const u8 *key = params->key;
|
|
size_t key_len = params->key_len;
|
|
|
|
wpa_printf(MSG_DEBUG, "%s: alg=%d key_idx=%d set_tx=%d seq_len=%lu "
|
|
"key_len=%lu",
|
|
__FUNCTION__, alg, key_idx, set_tx,
|
|
(unsigned long) seq_len, (unsigned long) key_len);
|
|
|
|
ret = wpa_driver_wext_set_key_ext(drv, alg, addr, key_idx, set_tx,
|
|
seq, seq_len, key, key_len, key_flag);
|
|
if (ret == 0)
|
|
return 0;
|
|
|
|
if (ret == -2 &&
|
|
(alg == WPA_ALG_NONE || alg == WPA_ALG_WEP)) {
|
|
wpa_printf(MSG_DEBUG, "Driver did not support "
|
|
"SIOCSIWENCODEEXT, trying SIOCSIWENCODE");
|
|
ret = 0;
|
|
} else {
|
|
wpa_printf(MSG_DEBUG, "Driver did not support "
|
|
"SIOCSIWENCODEEXT");
|
|
return ret;
|
|
}
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.encoding.flags = key_idx + 1;
|
|
iwr.u.encoding.flags |= IW_ENCODE_TEMP;
|
|
if (alg == WPA_ALG_NONE)
|
|
iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
|
|
iwr.u.encoding.pointer = (caddr_t) key;
|
|
iwr.u.encoding.length = key_len;
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWENCODE]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
if (set_tx && alg != WPA_ALG_NONE) {
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.encoding.flags = key_idx + 1;
|
|
iwr.u.encoding.flags |= IW_ENCODE_TEMP;
|
|
iwr.u.encoding.pointer = (caddr_t) NULL;
|
|
iwr.u.encoding.length = 0;
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR,
|
|
"ioctl[SIOCSIWENCODE] (set_tx): %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_countermeasures(void *priv,
|
|
int enabled)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
return wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_TKIP_COUNTERMEASURES,
|
|
enabled);
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_drop_unencrypted(void *priv,
|
|
int enabled)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
drv->use_crypt = enabled;
|
|
return wpa_driver_wext_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
|
|
enabled);
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_mlme(struct wpa_driver_wext_data *drv,
|
|
const u8 *addr, int cmd, u16 reason_code)
|
|
{
|
|
struct iwreq iwr;
|
|
struct iw_mlme mlme;
|
|
int ret = 0;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
os_memset(&mlme, 0, sizeof(mlme));
|
|
mlme.cmd = cmd;
|
|
mlme.reason_code = reason_code;
|
|
mlme.addr.sa_family = ARPHRD_ETHER;
|
|
os_memcpy(mlme.addr.sa_data, addr, ETH_ALEN);
|
|
iwr.u.data.pointer = (caddr_t) &mlme;
|
|
iwr.u.data.length = sizeof(mlme);
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWMLME, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWMLME]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
|
|
{
|
|
struct iwreq iwr;
|
|
const u8 null_bssid[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
|
|
u8 ssid[SSID_MAX_LEN];
|
|
int i;
|
|
|
|
/*
|
|
* Only force-disconnect when the card is in infrastructure mode,
|
|
* otherwise the driver might interpret the cleared BSSID and random
|
|
* SSID as an attempt to create a new ad-hoc network.
|
|
*/
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCGIWMODE]: %s",
|
|
strerror(errno));
|
|
iwr.u.mode = IW_MODE_INFRA;
|
|
}
|
|
|
|
if (iwr.u.mode == IW_MODE_INFRA) {
|
|
/* Clear the BSSID selection */
|
|
if (wpa_driver_wext_set_bssid(drv, null_bssid) < 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Failed to clear BSSID "
|
|
"selection on disconnect");
|
|
}
|
|
|
|
if (drv->cfg80211) {
|
|
/*
|
|
* cfg80211 supports SIOCSIWMLME commands, so there is
|
|
* no need for the random SSID hack, but clear the
|
|
* SSID.
|
|
*/
|
|
if (wpa_driver_wext_set_ssid(drv, (u8 *) "", 0) < 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Failed to clear "
|
|
"SSID on disconnect");
|
|
}
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Set a random SSID to make sure the driver will not be trying
|
|
* to associate with something even if it does not understand
|
|
* SIOCSIWMLME commands (or tries to associate automatically
|
|
* after deauth/disassoc).
|
|
*/
|
|
for (i = 0; i < SSID_MAX_LEN; i++)
|
|
ssid[i] = rand() & 0xFF;
|
|
if (wpa_driver_wext_set_ssid(drv, ssid, SSID_MAX_LEN) < 0) {
|
|
wpa_printf(MSG_DEBUG, "WEXT: Failed to set bogus "
|
|
"SSID to disconnect");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_deauthenticate(void *priv, const u8 *addr,
|
|
u16 reason_code)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
int ret;
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
ret = wpa_driver_wext_mlme(drv, addr, IW_MLME_DEAUTH, reason_code);
|
|
wpa_driver_wext_disconnect(drv);
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_gen_ie(void *priv, const u8 *ie,
|
|
size_t ie_len)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iwreq iwr;
|
|
int ret = 0;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.data.pointer = (caddr_t) ie;
|
|
iwr.u.data.length = ie_len;
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWGENIE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWGENIE]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_cipher2wext(int cipher)
|
|
{
|
|
switch (cipher) {
|
|
case WPA_CIPHER_NONE:
|
|
return IW_AUTH_CIPHER_NONE;
|
|
case WPA_CIPHER_WEP40:
|
|
return IW_AUTH_CIPHER_WEP40;
|
|
case WPA_CIPHER_TKIP:
|
|
return IW_AUTH_CIPHER_TKIP;
|
|
case WPA_CIPHER_CCMP:
|
|
return IW_AUTH_CIPHER_CCMP;
|
|
case WPA_CIPHER_WEP104:
|
|
return IW_AUTH_CIPHER_WEP104;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_keymgmt2wext(int keymgmt)
|
|
{
|
|
switch (keymgmt) {
|
|
case WPA_KEY_MGMT_IEEE8021X:
|
|
case WPA_KEY_MGMT_IEEE8021X_NO_WPA:
|
|
return IW_AUTH_KEY_MGMT_802_1X;
|
|
case WPA_KEY_MGMT_PSK:
|
|
return IW_AUTH_KEY_MGMT_PSK;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
wpa_driver_wext_auth_alg_fallback(struct wpa_driver_wext_data *drv,
|
|
struct wpa_driver_associate_params *params)
|
|
{
|
|
struct iwreq iwr;
|
|
int ret = 0;
|
|
|
|
wpa_printf(MSG_DEBUG, "WEXT: Driver did not support "
|
|
"SIOCSIWAUTH for AUTH_ALG, trying SIOCSIWENCODE");
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
/* Just changing mode, not actual keys */
|
|
iwr.u.encoding.flags = 0;
|
|
iwr.u.encoding.pointer = (caddr_t) NULL;
|
|
iwr.u.encoding.length = 0;
|
|
|
|
/*
|
|
* Note: IW_ENCODE_{OPEN,RESTRICTED} can be interpreted to mean two
|
|
* different things. Here they are used to indicate Open System vs.
|
|
* Shared Key authentication algorithm. However, some drivers may use
|
|
* them to select between open/restricted WEP encrypted (open = allow
|
|
* both unencrypted and encrypted frames; restricted = only allow
|
|
* encrypted frames).
|
|
*/
|
|
|
|
if (!drv->use_crypt) {
|
|
iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
|
|
} else {
|
|
if (params->auth_alg & WPA_AUTH_ALG_OPEN)
|
|
iwr.u.encoding.flags |= IW_ENCODE_OPEN;
|
|
if (params->auth_alg & WPA_AUTH_ALG_SHARED)
|
|
iwr.u.encoding.flags |= IW_ENCODE_RESTRICTED;
|
|
}
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWENCODE]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_associate(void *priv,
|
|
struct wpa_driver_associate_params *params)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
int ret = 0;
|
|
int allow_unencrypted_eapol;
|
|
int value;
|
|
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
|
|
if (drv->cfg80211) {
|
|
/*
|
|
* Stop cfg80211 from trying to associate before we are done
|
|
* with all parameters.
|
|
*/
|
|
if (wpa_driver_wext_set_ssid(drv, (u8 *) "", 0) < 0) {
|
|
wpa_printf(MSG_DEBUG,
|
|
"WEXT: Failed to clear SSID to stop pending cfg80211 association attempts (if any)");
|
|
/* continue anyway */
|
|
}
|
|
}
|
|
|
|
if (wpa_driver_wext_set_drop_unencrypted(drv, params->drop_unencrypted)
|
|
< 0)
|
|
ret = -1;
|
|
if (wpa_driver_wext_set_auth_alg(drv, params->auth_alg) < 0)
|
|
ret = -1;
|
|
if (wpa_driver_wext_set_mode(drv, params->mode) < 0)
|
|
ret = -1;
|
|
|
|
/*
|
|
* If the driver did not support SIOCSIWAUTH, fallback to
|
|
* SIOCSIWENCODE here.
|
|
*/
|
|
if (drv->auth_alg_fallback &&
|
|
wpa_driver_wext_auth_alg_fallback(drv, params) < 0)
|
|
ret = -1;
|
|
|
|
if (!params->bssid &&
|
|
wpa_driver_wext_set_bssid(drv, NULL) < 0)
|
|
ret = -1;
|
|
|
|
/* TODO: should consider getting wpa version and cipher/key_mgmt suites
|
|
* from configuration, not from here, where only the selected suite is
|
|
* available */
|
|
if (wpa_driver_wext_set_gen_ie(drv, params->wpa_ie, params->wpa_ie_len)
|
|
< 0)
|
|
ret = -1;
|
|
if (params->wpa_proto & WPA_PROTO_RSN)
|
|
value = IW_AUTH_WPA_VERSION_WPA2;
|
|
else if (params->wpa_proto & WPA_PROTO_WPA)
|
|
value = IW_AUTH_WPA_VERSION_WPA;
|
|
else
|
|
value = IW_AUTH_WPA_VERSION_DISABLED;
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_WPA_VERSION, value) < 0)
|
|
ret = -1;
|
|
value = wpa_driver_wext_cipher2wext(params->pairwise_suite);
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_CIPHER_PAIRWISE, value) < 0)
|
|
ret = -1;
|
|
value = wpa_driver_wext_cipher2wext(params->group_suite);
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_CIPHER_GROUP, value) < 0)
|
|
ret = -1;
|
|
value = wpa_driver_wext_keymgmt2wext(params->key_mgmt_suite);
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_KEY_MGMT, value) < 0)
|
|
ret = -1;
|
|
value = params->key_mgmt_suite != WPA_KEY_MGMT_NONE ||
|
|
params->pairwise_suite != WPA_CIPHER_NONE ||
|
|
params->group_suite != WPA_CIPHER_NONE ||
|
|
(params->wpa_proto & (WPA_PROTO_RSN | WPA_PROTO_WPA));
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_PRIVACY_INVOKED, value) < 0)
|
|
ret = -1;
|
|
|
|
/* Allow unencrypted EAPOL messages even if pairwise keys are set when
|
|
* not using WPA. IEEE 802.1X specifies that these frames are not
|
|
* encrypted, but WPA encrypts them when pairwise keys are in use. */
|
|
if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
|
|
params->key_mgmt_suite == WPA_KEY_MGMT_PSK)
|
|
allow_unencrypted_eapol = 0;
|
|
else
|
|
allow_unencrypted_eapol = 1;
|
|
|
|
if (wpa_driver_wext_set_psk(drv, params->psk) < 0)
|
|
ret = -1;
|
|
if (wpa_driver_wext_set_auth_param(drv,
|
|
IW_AUTH_RX_UNENCRYPTED_EAPOL,
|
|
allow_unencrypted_eapol) < 0)
|
|
ret = -1;
|
|
switch (params->mgmt_frame_protection) {
|
|
case NO_MGMT_FRAME_PROTECTION:
|
|
value = IW_AUTH_MFP_DISABLED;
|
|
break;
|
|
case MGMT_FRAME_PROTECTION_OPTIONAL:
|
|
value = IW_AUTH_MFP_OPTIONAL;
|
|
break;
|
|
case MGMT_FRAME_PROTECTION_REQUIRED:
|
|
value = IW_AUTH_MFP_REQUIRED;
|
|
break;
|
|
};
|
|
if (wpa_driver_wext_set_auth_param(drv, IW_AUTH_MFP, value) < 0)
|
|
ret = -1;
|
|
if (params->freq.freq &&
|
|
wpa_driver_wext_set_freq(drv, params->freq.freq) < 0)
|
|
ret = -1;
|
|
if (!drv->cfg80211 &&
|
|
wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
|
|
ret = -1;
|
|
if (params->bssid &&
|
|
wpa_driver_wext_set_bssid(drv, params->bssid) < 0)
|
|
ret = -1;
|
|
if (drv->cfg80211 &&
|
|
wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
|
|
ret = -1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
int algs = 0, res;
|
|
|
|
if (auth_alg & WPA_AUTH_ALG_OPEN)
|
|
algs |= IW_AUTH_ALG_OPEN_SYSTEM;
|
|
if (auth_alg & WPA_AUTH_ALG_SHARED)
|
|
algs |= IW_AUTH_ALG_SHARED_KEY;
|
|
if (auth_alg & WPA_AUTH_ALG_LEAP)
|
|
algs |= IW_AUTH_ALG_LEAP;
|
|
if (algs == 0) {
|
|
/* at least one algorithm should be set */
|
|
algs = IW_AUTH_ALG_OPEN_SYSTEM;
|
|
}
|
|
|
|
res = wpa_driver_wext_set_auth_param(drv, IW_AUTH_80211_AUTH_ALG,
|
|
algs);
|
|
drv->auth_alg_fallback = res == -2;
|
|
return res;
|
|
}
|
|
|
|
|
|
/**
|
|
* wpa_driver_wext_set_mode - Set wireless mode (infra/adhoc), SIOCSIWMODE
|
|
* @priv: Pointer to private wext data from wpa_driver_wext_init()
|
|
* @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
|
|
* Returns: 0 on success, -1 on failure
|
|
*/
|
|
int wpa_driver_wext_set_mode(void *priv, int mode)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iwreq iwr;
|
|
int ret = -1;
|
|
unsigned int new_mode = mode ? IW_MODE_ADHOC : IW_MODE_INFRA;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.mode = new_mode;
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) == 0) {
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
if (errno != EBUSY) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWMODE]: %s",
|
|
strerror(errno));
|
|
goto done;
|
|
}
|
|
|
|
/* mac80211 doesn't allow mode changes while the device is up, so if
|
|
* the device isn't in the mode we're about to change to, take device
|
|
* down, try to set the mode again, and bring it back up.
|
|
*/
|
|
if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCGIWMODE]: %s",
|
|
strerror(errno));
|
|
goto done;
|
|
}
|
|
|
|
if (iwr.u.mode == new_mode) {
|
|
ret = 0;
|
|
goto done;
|
|
}
|
|
|
|
if (linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 0) == 0) {
|
|
/* Try to set the mode again while the interface is down */
|
|
iwr.u.mode = new_mode;
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0)
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWMODE]: %s",
|
|
strerror(errno));
|
|
else
|
|
ret = 0;
|
|
|
|
(void) linux_set_iface_flags(drv->ioctl_sock, drv->ifname, 1);
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_pmksa(struct wpa_driver_wext_data *drv,
|
|
u32 cmd, const u8 *bssid, const u8 *pmkid)
|
|
{
|
|
struct iwreq iwr;
|
|
struct iw_pmksa pmksa;
|
|
int ret = 0;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
os_memset(&pmksa, 0, sizeof(pmksa));
|
|
pmksa.cmd = cmd;
|
|
pmksa.bssid.sa_family = ARPHRD_ETHER;
|
|
if (bssid)
|
|
os_memcpy(pmksa.bssid.sa_data, bssid, ETH_ALEN);
|
|
if (pmkid)
|
|
os_memcpy(pmksa.pmkid, pmkid, IW_PMKID_LEN);
|
|
iwr.u.data.pointer = (caddr_t) &pmksa;
|
|
iwr.u.data.length = sizeof(pmksa);
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCSIWPMKSA, &iwr) < 0) {
|
|
if (errno != EOPNOTSUPP)
|
|
wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPMKSA]: %s",
|
|
strerror(errno));
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_add_pmkid(void *priv,
|
|
struct wpa_pmkid_params *params)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
return wpa_driver_wext_pmksa(drv, IW_PMKSA_ADD, params->bssid,
|
|
params->pmkid);
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_remove_pmkid(void *priv,
|
|
struct wpa_pmkid_params *params)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
return wpa_driver_wext_pmksa(drv, IW_PMKSA_REMOVE, params->bssid,
|
|
params->pmkid);
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_flush_pmkid(void *priv)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
return wpa_driver_wext_pmksa(drv, IW_PMKSA_FLUSH, NULL, NULL);
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
if (!drv->has_capability)
|
|
return -1;
|
|
os_memcpy(capa, &drv->capa, sizeof(*capa));
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_alternative_ifindex(struct wpa_driver_wext_data *drv,
|
|
const char *ifname)
|
|
{
|
|
if (ifname == NULL) {
|
|
drv->ifindex2 = -1;
|
|
return 0;
|
|
}
|
|
|
|
drv->ifindex2 = if_nametoindex(ifname);
|
|
if (drv->ifindex2 <= 0)
|
|
return -1;
|
|
|
|
wpa_printf(MSG_DEBUG, "Added alternative ifindex %d (%s) for "
|
|
"wireless events", drv->ifindex2, ifname);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_set_operstate(void *priv, int state)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
int wpa_driver_wext_get_version(struct wpa_driver_wext_data *drv)
|
|
{
|
|
return drv->we_version_compiled;
|
|
}
|
|
|
|
|
|
static const char * wext_get_radio_name(void *priv)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
return drv->phyname;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_signal_poll(void *priv, struct wpa_signal_info *si)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
struct iw_statistics stats;
|
|
struct iwreq iwr;
|
|
|
|
os_memset(si, 0, sizeof(*si));
|
|
si->current_signal = -WPA_INVALID_NOISE;
|
|
si->current_noise = WPA_INVALID_NOISE;
|
|
si->chanwidth = CHAN_WIDTH_UNKNOWN;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.data.pointer = (caddr_t) &stats;
|
|
iwr.u.data.length = sizeof(stats);
|
|
iwr.u.data.flags = 1;
|
|
|
|
if (ioctl(drv->ioctl_sock, SIOCGIWSTATS, &iwr) < 0) {
|
|
wpa_printf(MSG_ERROR, "WEXT: SIOCGIWSTATS: %s",
|
|
strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
si->current_signal = stats.qual.level -
|
|
((stats.qual.updated & IW_QUAL_DBM) ? 0x100 : 0);
|
|
si->current_noise = stats.qual.noise -
|
|
((stats.qual.updated & IW_QUAL_DBM) ? 0x100 : 0);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpa_driver_wext_status(void *priv, char *buf, size_t buflen)
|
|
{
|
|
struct wpa_driver_wext_data *drv = priv;
|
|
int res;
|
|
char *pos, *end;
|
|
unsigned char addr[ETH_ALEN];
|
|
|
|
pos = buf;
|
|
end = buf + buflen;
|
|
|
|
if (linux_get_ifhwaddr(drv->ioctl_sock, drv->ifname, addr))
|
|
return -1;
|
|
|
|
res = os_snprintf(pos, end - pos,
|
|
"ifindex=%d\n"
|
|
"ifname=%s\n"
|
|
"addr=" MACSTR "\n",
|
|
drv->ifindex,
|
|
drv->ifname,
|
|
MAC2STR(addr));
|
|
if (os_snprintf_error(end - pos, res))
|
|
return pos - buf;
|
|
pos += res;
|
|
|
|
return pos - buf;
|
|
}
|
|
|
|
const struct wpa_driver_ops wpa_driver_wext_ops = {
|
|
.name = "wext",
|
|
.desc = "Linux wireless extensions (generic)",
|
|
.get_bssid = wpa_driver_wext_get_bssid,
|
|
.get_ssid = wpa_driver_wext_get_ssid,
|
|
.set_key = wpa_driver_wext_set_key,
|
|
.set_countermeasures = wpa_driver_wext_set_countermeasures,
|
|
.scan2 = wpa_driver_wext_scan,
|
|
.get_scan_results2 = wpa_driver_wext_get_scan_results,
|
|
.deauthenticate = wpa_driver_wext_deauthenticate,
|
|
.associate = wpa_driver_wext_associate,
|
|
.init = wpa_driver_wext_init,
|
|
.deinit = wpa_driver_wext_deinit,
|
|
.add_pmkid = wpa_driver_wext_add_pmkid,
|
|
.remove_pmkid = wpa_driver_wext_remove_pmkid,
|
|
.flush_pmkid = wpa_driver_wext_flush_pmkid,
|
|
.get_capa = wpa_driver_wext_get_capa,
|
|
.set_operstate = wpa_driver_wext_set_operstate,
|
|
.get_radio_name = wext_get_radio_name,
|
|
.signal_poll = wpa_driver_wext_signal_poll,
|
|
.status = wpa_driver_wext_status,
|
|
};
|