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* WPA Supplicant - Driver interaction with Atmel Wireless LAN drivers
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* Copyright (c) 2000-2005, ATMEL Corporation
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* Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
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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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* Alternatively, this software may be distributed under the terms of BSD
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* See README and COPYING for more details.
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/******************************************************************************
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Copyright 2000-2001 ATMEL Corporation.
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WPA Supplicant - driver interaction with Atmel Wireless lan drivers.
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This is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Atmel wireless lan drivers; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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* Alternatively, this software may be distributed under the terms of BSD
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#include <sys/ioctl.h>
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#include "wireless_copy.h"
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#include "driver_wext.h"
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struct wpa_driver_atmel_data {
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void *wext; /* private data for driver_wext */
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char ifname[IFNAMSIZ + 1];
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#define ATMEL_WPA_IOCTL (SIOCIWFIRSTPRIV + 2)
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#define ATMEL_WPA_IOCTL_PARAM (SIOCIWFIRSTPRIV + 3)
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#define ATMEL_WPA_IOCTL_GET_PARAM (SIOCIWFIRSTPRIV + 4)
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/* ATMEL_WPA_IOCTL ioctl() cmd: */
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SET_WPA_ENCRYPTION = 1,
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SET_CIPHER_SUITES = 2,
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/* ATMEL_WPA_IOCTL_PARAM ioctl() cmd: */
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ATMEL_PARAM_PRIVACY_INVOKED = 2,
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ATMEL_PARAM_WPA_TYPE = 3
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#define MAX_KEY_LENGTH 40
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unsigned char sta_addr[6];
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u8 key[MAX_KEY_LENGTH];
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static int atmel_ioctl(struct wpa_driver_atmel_data *drv,
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struct atmel_param *param,
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int len, int show_err)
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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.data.pointer = (caddr_t) param;
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iwr.u.data.length = len;
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if (ioctl(drv->sock, ATMEL_WPA_IOCTL, &iwr) < 0) {
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perror("ioctl[ATMEL_WPA_IOCTL]");
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static int atmel2param(struct wpa_driver_atmel_data *drv, int param, int value)
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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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i = (int *) iwr.u.name;
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if (ioctl(drv->sock, ATMEL_WPA_IOCTL_PARAM, &iwr) < 0) {
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perror("ioctl[ATMEL_WPA_IOCTL_PARAM]");
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static int wpa_driver_atmel_set_wpa_ie(struct wpa_driver_atmel_data *drv,
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const char *wpa_ie, size_t wpa_ie_len)
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struct atmel_param *param;
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size_t blen = ATMEL_GENERIC_ELEMENT_HDR_LEN + wpa_ie_len;
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if (blen < sizeof(*param))
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blen = sizeof(*param);
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param = os_zalloc(blen);
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param->cmd = ATMEL_SET_GENERIC_ELEMENT;
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param->u.generic_elem.len = wpa_ie_len;
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os_memcpy(param->u.generic_elem.data, wpa_ie, wpa_ie_len);
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res = atmel_ioctl(drv, param, blen, 1);
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static int wpa_driver_atmel_set_wpa(void *priv, int enabled)
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struct wpa_driver_atmel_data *drv = priv;
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printf("wpa_driver_atmel_set_wpa %s\n", drv->ifname);
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wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
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if (!enabled && wpa_driver_atmel_set_wpa_ie(drv, NULL, 0) < 0)
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if (atmel2param(drv, ATMEL_PARAM_PRIVACY_INVOKED, enabled) < 0)
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if (atmel2param(drv, ATMEL_PARAM_WPA, enabled) < 0)
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static int wpa_driver_atmel_set_key(void *priv, wpa_alg alg,
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const u8 *addr, int key_idx,
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int set_tx, const u8 *seq, size_t seq_len,
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const u8 *key, size_t key_len)
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struct wpa_driver_atmel_data *drv = priv;
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struct atmel_param *param;
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wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
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"key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
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(unsigned long) seq_len, (unsigned long) key_len);
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blen = sizeof(*param) + key_len;
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buf = os_zalloc(blen);
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param = (struct atmel_param *) buf;
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param->cmd = SET_WPA_ENCRYPTION;
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os_memset(param->sta_addr, 0xff, ETH_ALEN);
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os_memcpy(param->sta_addr, addr, ETH_ALEN);
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param->alg = alg_type;
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param->key_idx = key_idx;
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param->set_tx = set_tx;
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os_memcpy(param->seq, seq, seq_len);
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param->seq_len = seq_len;
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param->key_len = key_len;
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os_memcpy((u8 *)param->key, key, key_len);
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if (atmel_ioctl(drv, param, blen, 1)) {
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wpa_printf(MSG_WARNING, "Failed to set encryption.");
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/* TODO: show key error*/
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static int wpa_driver_atmel_set_countermeasures(void *priv,
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printf("wpa_driver_atmel_set_countermeasures - not yet "
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static int wpa_driver_atmel_set_drop_unencrypted(void *priv,
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printf("wpa_driver_atmel_set_drop_unencrypted - not yet "
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static int wpa_driver_atmel_mlme(void *priv, const u8 *addr, int cmd,
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struct wpa_driver_atmel_data *drv = priv;
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struct atmel_param param;
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int mgmt_error = 0xaa;
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os_memset(¶m, 0, sizeof(param));
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os_memcpy(param.sta_addr, addr, ETH_ALEN);
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param.mlme.reason_code = reason_code;
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param.mlme.state = mgmt_error;
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ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
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static int wpa_driver_atmel_set_suites(struct wpa_driver_atmel_data *drv,
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u8 pairwise_suite, u8 group_suite,
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struct atmel_param param;
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os_memset(¶m, 0, sizeof(param));
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param.cmd = SET_CIPHER_SUITES;
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param.pairwise_suite = pairwise_suite;
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param.group_suite = group_suite;
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param.key_mgmt_suite = key_mgmt_suite;
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ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
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static int wpa_driver_atmel_deauthenticate(void *priv, const u8 *addr,
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struct wpa_driver_atmel_data *drv = priv;
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printf("wpa_driver_atmel_deauthenticate\n");
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wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
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return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DEAUTH,
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static int wpa_driver_atmel_disassociate(void *priv, const u8 *addr,
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struct wpa_driver_atmel_data *drv = priv;
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printf("wpa_driver_atmel_disassociate\n");
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wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
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return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DISASSOC,
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/* Atmel driver uses specific values for each cipher suite */
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static int convertSuiteToDriver(wpa_cipher suite)
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wpa_driver_atmel_associate(void *priv,
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struct wpa_driver_associate_params *params)
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struct wpa_driver_atmel_data *drv = priv;
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u8 pairwise_suite_driver;
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u8 group_suite_driver;
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u8 key_mgmt_suite_driver;
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pairwise_suite_driver = convertSuiteToDriver(params->pairwise_suite);
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group_suite_driver = convertSuiteToDriver(params->group_suite);
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key_mgmt_suite_driver = convertSuiteToDriver(params->key_mgmt_suite);
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if (wpa_driver_atmel_set_suites(drv, pairwise_suite_driver,
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key_mgmt_suite_driver) < 0){
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printf("wpa_driver_atmel_set_suites.\n");
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if (wpa_driver_wext_set_freq(drv->wext, params->freq) < 0) {
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printf("wpa_driver_atmel_set_freq.\n");
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if (wpa_driver_wext_set_ssid(drv->wext, params->ssid, params->ssid_len)
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printf("FAILED : wpa_driver_atmel_set_ssid.\n");
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if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0) {
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printf("FAILED : wpa_driver_atmel_set_bssid.\n");
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static int wpa_driver_atmel_get_bssid(void *priv, u8 *bssid)
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struct wpa_driver_atmel_data *drv = priv;
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return wpa_driver_wext_get_bssid(drv->wext, bssid);
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static int wpa_driver_atmel_get_ssid(void *priv, u8 *ssid)
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struct wpa_driver_atmel_data *drv = priv;
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return wpa_driver_wext_get_ssid(drv->wext, ssid);
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static int wpa_driver_atmel_scan(void *priv, const u8 *ssid, size_t ssid_len)
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struct wpa_driver_atmel_data *drv = priv;
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return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
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static int wpa_driver_atmel_get_scan_results(void *priv,
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struct wpa_scan_result *results,
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struct wpa_driver_atmel_data *drv = priv;
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return wpa_driver_wext_get_scan_results(drv->wext, results, max_size);
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static int wpa_driver_atmel_set_operstate(void *priv, int state)
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struct wpa_driver_atmel_data *drv = priv;
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return wpa_driver_wext_set_operstate(drv->wext, state);
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static void * wpa_driver_atmel_init(void *ctx, const char *ifname)
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struct wpa_driver_atmel_data *drv;
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drv = os_zalloc(sizeof(*drv));
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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_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
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drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
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wpa_driver_wext_deinit(drv->wext);
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static void wpa_driver_atmel_deinit(void *priv)
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struct wpa_driver_atmel_data *drv = priv;
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wpa_driver_wext_deinit(drv->wext);
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const struct wpa_driver_ops wpa_driver_atmel_ops = {
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.desc = "ATMEL AT76C5XXx (USB, PCMCIA)",
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.get_bssid = wpa_driver_atmel_get_bssid,
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.get_ssid = wpa_driver_atmel_get_ssid,
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.set_wpa = wpa_driver_atmel_set_wpa,
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.set_key = wpa_driver_atmel_set_key,
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.init = wpa_driver_atmel_init,
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.deinit = wpa_driver_atmel_deinit,
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.set_countermeasures = wpa_driver_atmel_set_countermeasures,
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.set_drop_unencrypted = wpa_driver_atmel_set_drop_unencrypted,
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.scan = wpa_driver_atmel_scan,
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.get_scan_results = wpa_driver_atmel_get_scan_results,
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.deauthenticate = wpa_driver_atmel_deauthenticate,
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.disassociate = wpa_driver_atmel_disassociate,
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.associate = wpa_driver_atmel_associate,
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.set_operstate = wpa_driver_atmel_set_operstate,
added
removed
src/drivers/driver_atmel.c
