+++ /dev/null
-/*
- * Driver interaction with generic Linux Wireless Extensions
- * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
- *
- * This file implements a driver interface for the Linux Wireless Extensions.
- * When used with WE-18 or newer, this interface can be used as-is with number
- * of drivers. In addition to this, some of the common functions in this file
- * can be used by other driver interface implementations that use generic WE
- * ioctls, but require private ioctls for some of the functionality.
- */
-
-#include "includes.h"
-#include <sys/ioctl.h>
-#include <sys/stat.h>
-#include <net/if_arp.h>
-
-#include "wireless_copy.h"
-#include "common.h"
-#include "eloop.h"
-#include "common/ieee802_11_defs.h"
-#include "common/wpa_common.h"
-#include "priv_netlink.h"
-#include "netlink.h"
-#include "linux_ioctl.h"
-#include "rfkill.h"
-#include "driver.h"
-#include "driver_wext.h"
-
-
-static int wpa_driver_wext_flush_pmkid(void *priv);
-static int wpa_driver_wext_get_range(void *priv);
-static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv);
-static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv);
-static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg);
-
-
-int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
- int idx, u32 value)
-{
- struct iwreq iwr;
- int ret = 0;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.param.flags = idx & IW_AUTH_INDEX;
- iwr.u.param.value = value;
-
- if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
- if (errno != EOPNOTSUPP) {
- wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
- "value 0x%x) failed: %s)",
- idx, value, strerror(errno));
- }
- ret = errno == EOPNOTSUPP ? -2 : -1;
- }
-
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_get_bssid - Get BSSID, SIOCGIWAP
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @bssid: Buffer for BSSID
- * Returns: 0 on success, -1 on failure
- */
-int wpa_driver_wext_get_bssid(void *priv, u8 *bssid)
-{
- 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);
-
- if (ioctl(drv->ioctl_sock, SIOCGIWAP, &iwr) < 0) {
- perror("ioctl[SIOCGIWAP]");
- ret = -1;
- }
- os_memcpy(bssid, iwr.u.ap_addr.sa_data, ETH_ALEN);
-
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_set_bssid - Set BSSID, SIOCSIWAP
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @bssid: BSSID
- * Returns: 0 on success, -1 on failure
- */
-int wpa_driver_wext_set_bssid(void *priv, const u8 *bssid)
-{
- 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.ap_addr.sa_family = ARPHRD_ETHER;
- if (bssid)
- os_memcpy(iwr.u.ap_addr.sa_data, bssid, ETH_ALEN);
- else
- os_memset(iwr.u.ap_addr.sa_data, 0, ETH_ALEN);
-
- if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr) < 0) {
- perror("ioctl[SIOCSIWAP]");
- ret = -1;
- }
-
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_get_ssid - Get SSID, SIOCGIWESSID
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @ssid: Buffer for the SSID; must be at least 32 bytes long
- * Returns: SSID length on success, -1 on failure
- */
-int wpa_driver_wext_get_ssid(void *priv, u8 *ssid)
-{
- 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.essid.pointer = (caddr_t) ssid;
- iwr.u.essid.length = 32;
-
- if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
- perror("ioctl[SIOCGIWESSID]");
- ret = -1;
- } else {
- ret = iwr.u.essid.length;
- if (ret > 32)
- ret = 32;
- /* Some drivers include nul termination in the SSID, so let's
- * remove it here before further processing. WE-21 changes this
- * to explicitly require the length _not_ to include nul
- * termination. */
- if (ret > 0 && ssid[ret - 1] == '\0' &&
- drv->we_version_compiled < 21)
- ret--;
- }
-
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_set_ssid - Set SSID, SIOCSIWESSID
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @ssid: SSID
- * @ssid_len: Length of SSID (0..32)
- * Returns: 0 on success, -1 on failure
- */
-int wpa_driver_wext_set_ssid(void *priv, const u8 *ssid, size_t ssid_len)
-{
- struct wpa_driver_wext_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
- char buf[33];
-
- if (ssid_len > 32)
- return -1;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- /* flags: 1 = ESSID is active, 0 = not (promiscuous) */
- iwr.u.essid.flags = (ssid_len != 0);
- os_memset(buf, 0, sizeof(buf));
- os_memcpy(buf, ssid, ssid_len);
- iwr.u.essid.pointer = (caddr_t) buf;
- if (drv->we_version_compiled < 21) {
- /* For historic reasons, set SSID length to include one extra
- * character, C string nul termination, even though SSID is
- * really an octet string that should not be presented as a C
- * string. Some Linux drivers decrement the length by one and
- * can thus end up missing the last octet of the SSID if the
- * length is not incremented here. WE-21 changes this to
- * explicitly require the length _not_ to include nul
- * termination. */
- if (ssid_len)
- ssid_len++;
- }
- iwr.u.essid.length = ssid_len;
-
- if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
- perror("ioctl[SIOCSIWESSID]");
- ret = -1;
- }
-
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_set_freq - Set frequency/channel, SIOCSIWFREQ
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @freq: Frequency in MHz
- * Returns: 0 on success, -1 on failure
- */
-int wpa_driver_wext_set_freq(void *priv, int freq)
-{
- 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.freq.m = freq * 100000;
- iwr.u.freq.e = 1;
-
- if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
- perror("ioctl[SIOCSIWFREQ]");
- ret = -1;
- }
-
- return ret;
-}
-
-
-static void
-wpa_driver_wext_event_wireless_custom(void *ctx, char *custom)
-{
- union wpa_event_data data;
-
- wpa_printf(MSG_MSGDUMP, "WEXT: Custom wireless event: '%s'",
- custom);
-
- os_memset(&data, 0, sizeof(data));
- /* Host AP driver */
- if (os_strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
- data.michael_mic_failure.unicast =
- os_strstr(custom, " unicast ") != NULL;
- /* TODO: parse parameters(?) */
- wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
- } else if (os_strncmp(custom, "ASSOCINFO(ReqIEs=", 17) == 0) {
- char *spos;
- int bytes;
- u8 *req_ies = NULL, *resp_ies = NULL;
-
- spos = custom + 17;
-
- bytes = strspn(spos, "0123456789abcdefABCDEF");
- if (!bytes || (bytes & 1))
- return;
- bytes /= 2;
-
- req_ies = os_malloc(bytes);
- if (req_ies == NULL ||
- hexstr2bin(spos, req_ies, bytes) < 0)
- goto done;
- data.assoc_info.req_ies = req_ies;
- data.assoc_info.req_ies_len = bytes;
-
- spos += bytes * 2;
-
- data.assoc_info.resp_ies = NULL;
- data.assoc_info.resp_ies_len = 0;
-
- if (os_strncmp(spos, " RespIEs=", 9) == 0) {
- spos += 9;
-
- bytes = strspn(spos, "0123456789abcdefABCDEF");
- if (!bytes || (bytes & 1))
- goto done;
- bytes /= 2;
-
- resp_ies = os_malloc(bytes);
- if (resp_ies == NULL ||
- hexstr2bin(spos, resp_ies, bytes) < 0)
- goto done;
- data.assoc_info.resp_ies = resp_ies;
- data.assoc_info.resp_ies_len = bytes;
- }
-
- wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
-
- done:
- os_free(resp_ies);
- os_free(req_ies);
-#ifdef CONFIG_PEERKEY
- } else if (os_strncmp(custom, "STKSTART.request=", 17) == 0) {
- if (hwaddr_aton(custom + 17, data.stkstart.peer)) {
- wpa_printf(MSG_DEBUG, "WEXT: unrecognized "
- "STKSTART.request '%s'", custom + 17);
- return;
- }
- wpa_supplicant_event(ctx, EVENT_STKSTART, &data);
-#endif /* CONFIG_PEERKEY */
- }
-}
-
-
-static int wpa_driver_wext_event_wireless_michaelmicfailure(
- void *ctx, const char *ev, size_t len)
-{
- const struct iw_michaelmicfailure *mic;
- union wpa_event_data data;
-
- if (len < sizeof(*mic))
- return -1;
-
- mic = (const struct iw_michaelmicfailure *) ev;
-
- wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
- "flags=0x%x src_addr=" MACSTR, mic->flags,
- MAC2STR(mic->src_addr.sa_data));
-
- os_memset(&data, 0, sizeof(data));
- data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
- wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
-
- return 0;
-}
-
-
-static int wpa_driver_wext_event_wireless_pmkidcand(
- struct wpa_driver_wext_data *drv, const char *ev, size_t len)
-{
- const struct iw_pmkid_cand *cand;
- union wpa_event_data data;
- const u8 *addr;
-
- if (len < sizeof(*cand))
- return -1;
-
- cand = (const struct iw_pmkid_cand *) ev;
- addr = (const u8 *) cand->bssid.sa_data;
-
- wpa_printf(MSG_DEBUG, "PMKID candidate wireless event: "
- "flags=0x%x index=%d bssid=" MACSTR, cand->flags,
- cand->index, MAC2STR(addr));
-
- os_memset(&data, 0, sizeof(data));
- os_memcpy(data.pmkid_candidate.bssid, addr, ETH_ALEN);
- data.pmkid_candidate.index = cand->index;
- data.pmkid_candidate.preauth = cand->flags & IW_PMKID_CAND_PREAUTH;
- wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
-
- return 0;
-}
-
-
-static int wpa_driver_wext_event_wireless_assocreqie(
- struct wpa_driver_wext_data *drv, const char *ev, int len)
-{
- if (len < 0)
- return -1;
-
- wpa_hexdump(MSG_DEBUG, "AssocReq IE wireless event", (const u8 *) ev,
- len);
- os_free(drv->assoc_req_ies);
- drv->assoc_req_ies = os_malloc(len);
- if (drv->assoc_req_ies == NULL) {
- drv->assoc_req_ies_len = 0;
- return -1;
- }
- os_memcpy(drv->assoc_req_ies, ev, len);
- drv->assoc_req_ies_len = len;
-
- return 0;
-}
-
-
-static int wpa_driver_wext_event_wireless_assocrespie(
- struct wpa_driver_wext_data *drv, const char *ev, int len)
-{
- if (len < 0)
- return -1;
-
- wpa_hexdump(MSG_DEBUG, "AssocResp IE wireless event", (const u8 *) ev,
- len);
- os_free(drv->assoc_resp_ies);
- drv->assoc_resp_ies = os_malloc(len);
- if (drv->assoc_resp_ies == NULL) {
- drv->assoc_resp_ies_len = 0;
- return -1;
- }
- os_memcpy(drv->assoc_resp_ies, ev, len);
- drv->assoc_resp_ies_len = len;
-
- return 0;
-}
-
-
-static void wpa_driver_wext_event_assoc_ies(struct wpa_driver_wext_data *drv)
-{
- union wpa_event_data data;
-
- if (drv->assoc_req_ies == NULL && drv->assoc_resp_ies == NULL)
- return;
-
- os_memset(&data, 0, sizeof(data));
- if (drv->assoc_req_ies) {
- data.assoc_info.req_ies = drv->assoc_req_ies;
- data.assoc_info.req_ies_len = drv->assoc_req_ies_len;
- }
- if (drv->assoc_resp_ies) {
- data.assoc_info.resp_ies = drv->assoc_resp_ies;
- data.assoc_info.resp_ies_len = drv->assoc_resp_ies_len;
- }
-
- wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
-
- os_free(drv->assoc_req_ies);
- drv->assoc_req_ies = NULL;
- os_free(drv->assoc_resp_ies);
- drv->assoc_resp_ies = NULL;
-}
-
-
-static void wpa_driver_wext_event_wireless(struct wpa_driver_wext_data *drv,
- char *data, int len)
-{
- struct iw_event iwe_buf, *iwe = &iwe_buf;
- char *pos, *end, *custom, *buf;
-
- pos = data;
- end = data + len;
-
- while (pos + IW_EV_LCP_LEN <= end) {
- /* Event data may be unaligned, so make a local, aligned copy
- * before processing. */
- os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
- wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
- iwe->cmd, iwe->len);
- if (iwe->len <= IW_EV_LCP_LEN)
- return;
-
- custom = pos + IW_EV_POINT_LEN;
- if (drv->we_version_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 (custom + iwe->u.data.length > end) {
- 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 (custom + iwe->u.data.length > end) {
- wpa_printf(MSG_DEBUG, "WEXT: Invalid "
- "IWEVCUSTOM length");
- return;
- }
- buf = os_malloc(iwe->u.data.length + 1);
- if (buf == NULL)
- return;
- os_memcpy(buf, custom, iwe->u.data.length);
- buf[iwe->u.data.length] = '\0';
- 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 (custom + iwe->u.data.length > end) {
- 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 (custom + iwe->u.data.length > end) {
- 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 (custom + iwe->u.data.length > end) {
- 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)
- drv->if_removed = 1;
- else
- 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;
-
- 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)) {
- 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 */
-}
-
-
-/**
- * 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;
- }
-
- drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
- if (drv->ioctl_sock < 0) {
- perror("socket(PF_INET,SOCK_DGRAM)");
- 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 wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
-{
- int send_rfkill_event = 0;
-
- 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);
-
- /*
- * 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);
-
- if (os_strncmp(drv->ifname, "wlan", 4) == 0) {
- /*
- * 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.
- */
- char ifname2[IFNAMSIZ + 1];
- os_strlcpy(ifname2, drv->ifname, sizeof(ifname2));
- os_memcpy(ifname2, "wifi", 4);
- wpa_driver_wext_alternative_ifindex(drv, ifname2);
- }
-
- 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);
-
- /*
- * 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) {
- perror("ioctl[SIOCSIWSCAN]");
- ret = -1;
- }
-
- /* Not all drivers generate "scan completed" wireless event, so try to
- * read results after a timeout. */
- timeout = 5;
- 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 {
- perror("ioctl[SIOCGIWSCAN]");
- 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[32];
- 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 (custom + ssid_len > end)
- 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 (custom + clen > end)
- 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 (custom + clen > end)
- 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 && pos + 1 < end) {
- if (pos + 2 + pos[1] > end)
- 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(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 ap_num = 0, 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;
-
- ap_num = 0;
- 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 (pos + IW_EV_LCP_LEN <= end) {
- /* 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)
- 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) {
- perror("ioctl[SIOCGIWRANGE]");
- 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;
- 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;
- 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%x",
- drv->capa.key_mgmt, drv->capa.enc, 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))
- 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)
- perror("ioctl[SIOCSIWENCODEEXT] PMK");
- 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)
-{
- 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 ||
- os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
- 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;
- }
- 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_PMK:
- ext->alg = IW_ENCODE_ALG_PMK;
- break;
-#ifdef CONFIG_IEEE80211W
- case WPA_ALG_IGTK:
- ext->alg = IW_ENCODE_ALG_AES_CMAC;
- break;
-#endif /* CONFIG_IEEE80211W */
- 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;
- }
-
- perror("ioctl[SIOCSIWENCODEEXT]");
- }
-
- os_free(ext);
- return ret;
-}
-
-
-/**
- * wpa_driver_wext_set_key - Configure encryption key
- * @priv: Pointer to private wext data from wpa_driver_wext_init()
- * @priv: Private driver interface data
- * @alg: Encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP,
- * %WPA_ALG_TKIP, %WPA_ALG_CCMP); %WPA_ALG_NONE clears the key.
- * @addr: Address of the peer STA or ff:ff:ff:ff:ff:ff for
- * broadcast/default keys
- * @key_idx: key index (0..3), usually 0 for unicast keys
- * @set_tx: Configure this key as the default Tx key (only used when
- * driver does not support separate unicast/individual key
- * @seq: Sequence number/packet number, seq_len octets, the next
- * packet number to be used for in replay protection; configured
- * for Rx keys (in most cases, this is only used with broadcast
- * keys and set to zero for unicast keys)
- * @seq_len: Length of the seq, depends on the algorithm:
- * TKIP: 6 octets, CCMP: 6 octets
- * @key: Key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key,
- * 8-byte Rx Mic Key
- * @key_len: Length of the key buffer in octets (WEP: 5 or 13,
- * TKIP: 32, CCMP: 16)
- * 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.
- */
-int wpa_driver_wext_set_key(const char *ifname, void *priv, enum wpa_alg alg,
- const u8 *addr, int key_idx,
- int set_tx, const u8 *seq, size_t seq_len,
- const u8 *key, size_t key_len)
-{
- struct wpa_driver_wext_data *drv = priv;
- struct iwreq iwr;
- int ret = 0;
-
- 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);
- 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) {
- perror("ioctl[SIOCSIWENCODE]");
- 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) {
- perror("ioctl[SIOCSIWENCODE] (set_tx)");
- 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, int 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) {
- perror("ioctl[SIOCSIWMLME]");
- 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[32];
- 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) {
- perror("ioctl[SIOCGIWMODE]");
- iwr.u.mode = IW_MODE_INFRA;
- }
-
- if (iwr.u.mode == IW_MODE_INFRA) {
- if (drv->cfg80211) {
- /*
- * cfg80211 supports SIOCSIWMLME commands, so there is
- * no need for the random SSID hack, but clear the
- * BSSID and SSID.
- */
- if (wpa_driver_wext_set_bssid(drv, null_bssid) < 0 ||
- wpa_driver_wext_set_ssid(drv, (u8 *) "", 0) < 0) {
- wpa_printf(MSG_DEBUG, "WEXT: Failed to clear "
- "to disconnect");
- }
- return;
- }
- /*
- * Clear the BSSID selection and 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 < 32; i++)
- ssid[i] = rand() & 0xFF;
- if (wpa_driver_wext_set_bssid(drv, null_bssid) < 0 ||
- wpa_driver_wext_set_ssid(drv, ssid, 32) < 0) {
- wpa_printf(MSG_DEBUG, "WEXT: Failed to set bogus "
- "BSSID/SSID to disconnect");
- }
- }
-}
-
-
-static int wpa_driver_wext_deauthenticate(void *priv, const u8 *addr,
- int 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_disassociate(void *priv, const u8 *addr,
- int 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_DISASSOC, 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) {
- perror("ioctl[SIOCSIWGENIE]");
- ret = -1;
- }
-
- return ret;
-}
-
-
-int wpa_driver_wext_cipher2wext(int cipher)
-{
- switch (cipher) {
- case CIPHER_NONE:
- return IW_AUTH_CIPHER_NONE;
- case CIPHER_WEP40:
- return IW_AUTH_CIPHER_WEP40;
- case CIPHER_TKIP:
- return IW_AUTH_CIPHER_TKIP;
- case CIPHER_CCMP:
- return IW_AUTH_CIPHER_CCMP;
- case CIPHER_WEP104:
- return IW_AUTH_CIPHER_WEP104;
- default:
- return 0;
- }
-}
-
-
-int wpa_driver_wext_keymgmt2wext(int keymgmt)
-{
- switch (keymgmt) {
- case KEY_MGMT_802_1X:
- case KEY_MGMT_802_1X_NO_WPA:
- return IW_AUTH_KEY_MGMT_802_1X;
- case 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) {
- perror("ioctl[SIOCSIWENCODE]");
- 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.
- */
- wpa_driver_wext_set_ssid(drv, (u8 *) "", 0);
- }
-
- 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_ie == NULL || params->wpa_ie_len == 0)
- value = IW_AUTH_WPA_VERSION_DISABLED;
- else if (params->wpa_ie[0] == WLAN_EID_RSN)
- value = IW_AUTH_WPA_VERSION_WPA2;
- else
- value = IW_AUTH_WPA_VERSION_WPA;
- 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 != KEY_MGMT_NONE ||
- params->pairwise_suite != CIPHER_NONE ||
- params->group_suite != CIPHER_NONE ||
- params->wpa_ie_len;
- 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 == KEY_MGMT_802_1X ||
- params->key_mgmt_suite == 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;
-#ifdef CONFIG_IEEE80211W
- 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;
-#endif /* CONFIG_IEEE80211W */
- if (params->freq && wpa_driver_wext_set_freq(drv, params->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) {
- perror("ioctl[SIOCSIWMODE]");
- 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) {
- perror("ioctl[SIOCGIWMODE]");
- 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)
- perror("ioctl[SIOCSIWMODE]");
- 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)
- perror("ioctl[SIOCSIWPMKSA]");
- ret = -1;
- }
-
- return ret;
-}
-
-
-static int wpa_driver_wext_add_pmkid(void *priv, const u8 *bssid,
- const u8 *pmkid)
-{
- struct wpa_driver_wext_data *drv = priv;
- return wpa_driver_wext_pmksa(drv, IW_PMKSA_ADD, bssid, pmkid);
-}
-
-
-static int wpa_driver_wext_remove_pmkid(void *priv, const u8 *bssid,
- const u8 *pmkid)
-{
- struct wpa_driver_wext_data *drv = priv;
- return wpa_driver_wext_pmksa(drv, IW_PMKSA_REMOVE, bssid, 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;
-}
-
-
-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,
- .disassociate = wpa_driver_wext_disassociate,
- .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,
-};
projects / mech_eap.git / blobdiff