366 lines
9 KiB
C
366 lines
9 KiB
C
/*
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* WPA Supplicant - driver interaction with Linux ndiswrapper
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* Copyright (c) 2004-2006, Giridhar Pemmasani <giri@lmc.cs.sunysb.edu>
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* Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#include "includes.h"
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#include <sys/ioctl.h>
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#include "wireless_copy.h"
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#include "common.h"
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#include "driver.h"
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#include "driver_wext.h"
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struct wpa_driver_ndiswrapper_data {
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void *wext; /* private data for driver_wext */
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void *ctx;
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char ifname[IFNAMSIZ + 1];
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int sock;
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};
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struct wpa_key
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{
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wpa_alg alg;
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const u8 *addr;
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int key_index;
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int set_tx;
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const u8 *seq;
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size_t seq_len;
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const u8 *key;
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size_t key_len;
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};
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struct wpa_assoc_info
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{
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const u8 *bssid;
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const u8 *ssid;
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size_t ssid_len;
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int freq;
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const u8 *wpa_ie;
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size_t wpa_ie_len;
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wpa_cipher pairwise_suite;
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wpa_cipher group_suite;
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wpa_key_mgmt key_mgmt_suite;
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int auth_alg;
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int mode;
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};
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#define PRIV_RESET SIOCIWFIRSTPRIV+0
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#define WPA_SET_WPA SIOCIWFIRSTPRIV+1
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#define WPA_SET_KEY SIOCIWFIRSTPRIV+2
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#define WPA_ASSOCIATE SIOCIWFIRSTPRIV+3
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#define WPA_DISASSOCIATE SIOCIWFIRSTPRIV+4
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#define WPA_DROP_UNENCRYPTED SIOCIWFIRSTPRIV+5
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#define WPA_SET_COUNTERMEASURES SIOCIWFIRSTPRIV+6
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#define WPA_DEAUTHENTICATE SIOCIWFIRSTPRIV+7
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#define WPA_SET_AUTH_ALG SIOCIWFIRSTPRIV+8
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#define WPA_INIT SIOCIWFIRSTPRIV+9
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#define WPA_DEINIT SIOCIWFIRSTPRIV+10
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#define WPA_GET_CAPA SIOCIWFIRSTPRIV+11
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static int get_socket(void)
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{
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static const int families[] = {
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AF_INET, AF_IPX, AF_AX25, AF_APPLETALK
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};
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unsigned int i;
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int sock;
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for (i = 0; i < sizeof(families) / sizeof(int); ++i) {
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sock = socket(families[i], SOCK_DGRAM, 0);
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if (sock >= 0)
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return sock;
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}
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return -1;
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}
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static int iw_set_ext(struct wpa_driver_ndiswrapper_data *drv, int request,
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struct iwreq *pwrq)
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{
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os_strlcpy(pwrq->ifr_name, drv->ifname, IFNAMSIZ);
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return ioctl(drv->sock, request, pwrq);
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}
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static int wpa_ndiswrapper_set_wpa(void *priv, int enabled)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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struct iwreq priv_req;
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int ret = 0;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.data.flags = enabled;
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if (iw_set_ext(drv, WPA_SET_WPA, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_set_key(void *priv, wpa_alg alg, const u8 *addr,
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int key_idx, int set_tx,
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const u8 *seq, size_t seq_len,
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const u8 *key, size_t key_len)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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struct wpa_key wpa_key;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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wpa_key.alg = alg;
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wpa_key.addr = addr;
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wpa_key.key_index = key_idx;
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wpa_key.set_tx = set_tx;
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wpa_key.seq = seq;
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wpa_key.seq_len = seq_len;
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wpa_key.key = key;
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wpa_key.key_len = key_len;
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priv_req.u.data.pointer = (void *)&wpa_key;
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priv_req.u.data.length = sizeof(wpa_key);
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if (iw_set_ext(drv, WPA_SET_KEY, &priv_req) < 0)
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ret = -1;
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if (alg == WPA_ALG_NONE) {
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/*
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* ndiswrapper did not seem to be clearing keys properly in
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* some cases with WPA_SET_KEY. For example, roaming from WPA
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* enabled AP to plaintext one seemed to fail since the driver
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* did not associate. Try to make sure the keys are cleared so
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* that plaintext APs can be used in all cases.
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*/
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wpa_driver_wext_set_key(drv->wext, alg, addr, key_idx, set_tx,
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seq, seq_len, key, key_len);
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}
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return ret;
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}
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static int wpa_ndiswrapper_set_countermeasures(void *priv, int enabled)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.param.value = enabled;
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if (iw_set_ext(drv, WPA_SET_COUNTERMEASURES, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_set_drop_unencrypted(void *priv,
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int enabled)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.param.value = enabled;
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if (iw_set_ext(drv, WPA_DROP_UNENCRYPTED, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_deauthenticate(void *priv, const u8 *addr,
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int reason_code)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.param.value = reason_code;
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os_memcpy(&priv_req.u.ap_addr.sa_data, addr, ETH_ALEN);
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if (iw_set_ext(drv, WPA_DEAUTHENTICATE, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_disassociate(void *priv, const u8 *addr,
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int reason_code)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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os_memcpy(&priv_req.u.ap_addr.sa_data, addr, ETH_ALEN);
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if (iw_set_ext(drv, WPA_DISASSOCIATE, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int
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wpa_ndiswrapper_associate(void *priv,
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struct wpa_driver_associate_params *params)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct wpa_assoc_info wpa_assoc_info;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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os_memset(&wpa_assoc_info, 0, sizeof(wpa_assoc_info));
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wpa_assoc_info.bssid = params->bssid;
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wpa_assoc_info.ssid = params->ssid;
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wpa_assoc_info.ssid_len = params->ssid_len;
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wpa_assoc_info.freq = params->freq;
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wpa_assoc_info.wpa_ie = params->wpa_ie;
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wpa_assoc_info.wpa_ie_len = params->wpa_ie_len;
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wpa_assoc_info.pairwise_suite = params->pairwise_suite;
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wpa_assoc_info.group_suite = params->group_suite;
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wpa_assoc_info.key_mgmt_suite = params->key_mgmt_suite;
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wpa_assoc_info.auth_alg = params->auth_alg;
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wpa_assoc_info.mode = params->mode;
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priv_req.u.data.pointer = (void *)&wpa_assoc_info;
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priv_req.u.data.length = sizeof(wpa_assoc_info);
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if (iw_set_ext(drv, WPA_ASSOCIATE, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_set_auth_alg(void *priv, int auth_alg)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.param.value = auth_alg;
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if (iw_set_ext(drv, WPA_SET_AUTH_ALG, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_get_bssid(void *priv, u8 *bssid)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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return wpa_driver_wext_get_bssid(drv->wext, bssid);
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}
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static int wpa_ndiswrapper_get_ssid(void *priv, u8 *ssid)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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return wpa_driver_wext_get_ssid(drv->wext, ssid);
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}
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static int wpa_ndiswrapper_scan(void *priv, const u8 *ssid, size_t ssid_len)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
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}
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static struct wpa_scan_results * wpa_ndiswrapper_get_scan_results(void *priv)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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return wpa_driver_wext_get_scan_results(drv->wext);
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}
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static int wpa_ndiswrapper_get_capa(void *priv, struct wpa_driver_capa *capa)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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int ret = 0;
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struct iwreq priv_req;
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os_memset(&priv_req, 0, sizeof(priv_req));
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priv_req.u.data.pointer = (void *) capa;
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priv_req.u.data.length = sizeof(*capa);
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if (iw_set_ext(drv, WPA_GET_CAPA, &priv_req) < 0)
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ret = -1;
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return ret;
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}
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static int wpa_ndiswrapper_set_operstate(void *priv, int state)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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return wpa_driver_wext_set_operstate(drv->wext, state);
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}
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static void * wpa_ndiswrapper_init(void *ctx, const char *ifname)
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{
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struct wpa_driver_ndiswrapper_data *drv;
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drv = os_zalloc(sizeof(*drv));
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if (drv == NULL)
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return NULL;
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drv->wext = wpa_driver_wext_init(ctx, ifname);
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if (drv->wext == NULL) {
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os_free(drv);
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return NULL;
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}
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drv->ctx = ctx;
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os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
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drv->sock = get_socket();
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if (drv->sock < 0) {
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wpa_driver_wext_deinit(drv->wext);
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os_free(drv);
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return NULL;
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}
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return drv;
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}
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static void wpa_ndiswrapper_deinit(void *priv)
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{
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struct wpa_driver_ndiswrapper_data *drv = priv;
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wpa_driver_wext_deinit(drv->wext);
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close(drv->sock);
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os_free(drv);
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}
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const struct wpa_driver_ops wpa_driver_ndiswrapper_ops = {
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.name = "ndiswrapper",
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.desc = "Linux ndiswrapper",
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.set_wpa = wpa_ndiswrapper_set_wpa,
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.set_key = wpa_ndiswrapper_set_key,
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.set_countermeasures = wpa_ndiswrapper_set_countermeasures,
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.set_drop_unencrypted = wpa_ndiswrapper_set_drop_unencrypted,
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.deauthenticate = wpa_ndiswrapper_deauthenticate,
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.disassociate = wpa_ndiswrapper_disassociate,
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.associate = wpa_ndiswrapper_associate,
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.set_auth_alg = wpa_ndiswrapper_set_auth_alg,
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.get_bssid = wpa_ndiswrapper_get_bssid,
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.get_ssid = wpa_ndiswrapper_get_ssid,
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.scan = wpa_ndiswrapper_scan,
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.get_scan_results2 = wpa_ndiswrapper_get_scan_results,
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.init = wpa_ndiswrapper_init,
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.deinit = wpa_ndiswrapper_deinit,
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.get_capa = wpa_ndiswrapper_get_capa,
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.set_operstate = wpa_ndiswrapper_set_operstate,
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};
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