499 lines
12 KiB
C
499 lines
12 KiB
C
/*
|
|
* WPA Supplicant - Driver interaction with Atmel Wireless LAN drivers
|
|
* Copyright (c) 2000-2005, ATMEL Corporation
|
|
* Copyright (c) 2004-2007, 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.
|
|
*/
|
|
|
|
/******************************************************************************
|
|
Copyright 2000-2001 ATMEL Corporation.
|
|
|
|
WPA Supplicant - driver interaction with Atmel Wireless lan drivers.
|
|
|
|
This is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Atmel wireless lan drivers; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
******************************************************************************/
|
|
|
|
/*
|
|
* Alternatively, this software may be distributed under the terms of BSD
|
|
* license.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include <sys/ioctl.h>
|
|
|
|
#include "wireless_copy.h"
|
|
#include "common.h"
|
|
#include "driver.h"
|
|
#include "driver_wext.h"
|
|
|
|
struct wpa_driver_atmel_data {
|
|
void *wext; /* private data for driver_wext */
|
|
void *ctx;
|
|
char ifname[IFNAMSIZ + 1];
|
|
int sock;
|
|
};
|
|
|
|
|
|
#define ATMEL_WPA_IOCTL (SIOCIWFIRSTPRIV + 2)
|
|
#define ATMEL_WPA_IOCTL_PARAM (SIOCIWFIRSTPRIV + 3)
|
|
#define ATMEL_WPA_IOCTL_GET_PARAM (SIOCIWFIRSTPRIV + 4)
|
|
|
|
|
|
/* ATMEL_WPA_IOCTL ioctl() cmd: */
|
|
enum {
|
|
SET_WPA_ENCRYPTION = 1,
|
|
SET_CIPHER_SUITES = 2,
|
|
MLME_STA_DEAUTH = 3,
|
|
MLME_STA_DISASSOC = 4
|
|
};
|
|
|
|
/* ATMEL_WPA_IOCTL_PARAM ioctl() cmd: */
|
|
enum {
|
|
ATMEL_PARAM_WPA = 1,
|
|
ATMEL_PARAM_PRIVACY_INVOKED = 2,
|
|
ATMEL_PARAM_WPA_TYPE = 3
|
|
};
|
|
|
|
#define MAX_KEY_LENGTH 40
|
|
|
|
struct atmel_param{
|
|
unsigned char sta_addr[6];
|
|
int cmd;
|
|
u8 alg;
|
|
u8 key_idx;
|
|
u8 set_tx;
|
|
u8 seq[8];
|
|
u8 seq_len;
|
|
u16 key_len;
|
|
u8 key[MAX_KEY_LENGTH];
|
|
struct{
|
|
int reason_code;
|
|
u8 state;
|
|
}mlme;
|
|
u8 pairwise_suite;
|
|
u8 group_suite;
|
|
u8 key_mgmt_suite;
|
|
};
|
|
|
|
|
|
|
|
static int atmel_ioctl(struct wpa_driver_atmel_data *drv,
|
|
struct atmel_param *param,
|
|
int len, int show_err)
|
|
{
|
|
struct iwreq iwr;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
iwr.u.data.pointer = (caddr_t) param;
|
|
iwr.u.data.length = len;
|
|
|
|
if (ioctl(drv->sock, ATMEL_WPA_IOCTL, &iwr) < 0) {
|
|
int ret;
|
|
ret = errno;
|
|
if (show_err)
|
|
perror("ioctl[ATMEL_WPA_IOCTL]");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int atmel2param(struct wpa_driver_atmel_data *drv, int param, int value)
|
|
{
|
|
struct iwreq iwr;
|
|
int *i, ret = 0;
|
|
|
|
os_memset(&iwr, 0, sizeof(iwr));
|
|
os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
|
|
i = (int *) iwr.u.name;
|
|
*i++ = param;
|
|
*i++ = value;
|
|
|
|
if (ioctl(drv->sock, ATMEL_WPA_IOCTL_PARAM, &iwr) < 0) {
|
|
perror("ioctl[ATMEL_WPA_IOCTL_PARAM]");
|
|
ret = -1;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
#if 0
|
|
static int wpa_driver_atmel_set_wpa_ie(struct wpa_driver_atmel_data *drv,
|
|
const char *wpa_ie, size_t wpa_ie_len)
|
|
{
|
|
struct atmel_param *param;
|
|
int res;
|
|
size_t blen = ATMEL_GENERIC_ELEMENT_HDR_LEN + wpa_ie_len;
|
|
if (blen < sizeof(*param))
|
|
blen = sizeof(*param);
|
|
|
|
param = os_zalloc(blen);
|
|
if (param == NULL)
|
|
return -1;
|
|
|
|
param->cmd = ATMEL_SET_GENERIC_ELEMENT;
|
|
param->u.generic_elem.len = wpa_ie_len;
|
|
os_memcpy(param->u.generic_elem.data, wpa_ie, wpa_ie_len);
|
|
res = atmel_ioctl(drv, param, blen, 1);
|
|
|
|
os_free(param);
|
|
|
|
return res;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int wpa_driver_atmel_set_wpa(void *priv, int enabled)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
int ret = 0;
|
|
|
|
printf("wpa_driver_atmel_set_wpa %s\n", drv->ifname);
|
|
|
|
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
|
|
|
|
#if 0
|
|
if (!enabled && wpa_driver_atmel_set_wpa_ie(drv, NULL, 0) < 0)
|
|
ret = -1;
|
|
#endif
|
|
if (atmel2param(drv, ATMEL_PARAM_PRIVACY_INVOKED, enabled) < 0)
|
|
ret = -1;
|
|
if (atmel2param(drv, ATMEL_PARAM_WPA, enabled) < 0)
|
|
ret = -1;
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_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_atmel_data *drv = priv;
|
|
int ret = 0;
|
|
struct atmel_param *param;
|
|
u8 *buf;
|
|
u8 alg_type;
|
|
|
|
size_t blen;
|
|
char *alg_name;
|
|
|
|
switch (alg) {
|
|
case WPA_ALG_NONE:
|
|
alg_name = "none";
|
|
alg_type = 0;
|
|
break;
|
|
case WPA_ALG_WEP:
|
|
alg_name = "WEP";
|
|
alg_type = 1;
|
|
break;
|
|
case WPA_ALG_TKIP:
|
|
alg_name = "TKIP";
|
|
alg_type = 2;
|
|
break;
|
|
case WPA_ALG_CCMP:
|
|
alg_name = "CCMP";
|
|
alg_type = 3;
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
|
|
"key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
|
|
(unsigned long) seq_len, (unsigned long) key_len);
|
|
|
|
if (seq_len > 8)
|
|
return -2;
|
|
|
|
blen = sizeof(*param) + key_len;
|
|
buf = os_zalloc(blen);
|
|
if (buf == NULL)
|
|
return -1;
|
|
|
|
param = (struct atmel_param *) buf;
|
|
|
|
param->cmd = SET_WPA_ENCRYPTION;
|
|
|
|
if (addr == NULL)
|
|
os_memset(param->sta_addr, 0xff, ETH_ALEN);
|
|
else
|
|
os_memcpy(param->sta_addr, addr, ETH_ALEN);
|
|
|
|
param->alg = alg_type;
|
|
param->key_idx = key_idx;
|
|
param->set_tx = set_tx;
|
|
os_memcpy(param->seq, seq, seq_len);
|
|
param->seq_len = seq_len;
|
|
param->key_len = key_len;
|
|
os_memcpy((u8 *)param->key, key, key_len);
|
|
|
|
if (atmel_ioctl(drv, param, blen, 1)) {
|
|
wpa_printf(MSG_WARNING, "Failed to set encryption.");
|
|
/* TODO: show key error*/
|
|
ret = -1;
|
|
}
|
|
os_free(buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_set_countermeasures(void *priv,
|
|
int enabled)
|
|
{
|
|
/* FIX */
|
|
printf("wpa_driver_atmel_set_countermeasures - not yet "
|
|
"implemented\n");
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_mlme(void *priv, const u8 *addr, int cmd,
|
|
int reason_code)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
struct atmel_param param;
|
|
int ret;
|
|
int mgmt_error = 0xaa;
|
|
|
|
os_memset(¶m, 0, sizeof(param));
|
|
os_memcpy(param.sta_addr, addr, ETH_ALEN);
|
|
param.cmd = cmd;
|
|
param.mlme.reason_code = reason_code;
|
|
param.mlme.state = mgmt_error;
|
|
ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
|
|
return ret;
|
|
}
|
|
|
|
|
|
#if 0
|
|
static int wpa_driver_atmel_set_suites(struct wpa_driver_atmel_data *drv,
|
|
u8 pairwise_suite, u8 group_suite,
|
|
u8 key_mgmt_suite)
|
|
{
|
|
struct atmel_param param;
|
|
int ret;
|
|
|
|
os_memset(¶m, 0, sizeof(param));
|
|
param.cmd = SET_CIPHER_SUITES;
|
|
param.pairwise_suite = pairwise_suite;
|
|
param.group_suite = group_suite;
|
|
param.key_mgmt_suite = key_mgmt_suite;
|
|
|
|
ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
|
|
static int wpa_driver_atmel_deauthenticate(void *priv, const u8 *addr,
|
|
int reason_code)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
printf("wpa_driver_atmel_deauthenticate\n");
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DEAUTH,
|
|
reason_code);
|
|
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_disassociate(void *priv, const u8 *addr,
|
|
int reason_code)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
printf("wpa_driver_atmel_disassociate\n");
|
|
wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
|
|
return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DISASSOC,
|
|
reason_code);
|
|
|
|
}
|
|
|
|
|
|
#if 0
|
|
/* Atmel driver uses specific values for each cipher suite */
|
|
static int convertSuiteToDriver(enum wpa_cipher suite)
|
|
{
|
|
u8 suite_type;
|
|
|
|
switch(suite) {
|
|
case CIPHER_NONE:
|
|
suite_type = 0;
|
|
break;
|
|
case CIPHER_WEP40:
|
|
suite_type = 1;
|
|
break;
|
|
case CIPHER_TKIP:
|
|
suite_type = 2;
|
|
break;
|
|
case CIPHER_WEP104:
|
|
suite_type = 5;
|
|
break;
|
|
case CIPHER_CCMP:
|
|
suite_type = 3;
|
|
break;
|
|
default:
|
|
suite_type = 2;
|
|
}
|
|
|
|
return suite_type;
|
|
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
wpa_driver_atmel_associate(void *priv,
|
|
struct wpa_driver_associate_params *params)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
int ret = 0;
|
|
#if 0
|
|
u8 pairwise_suite_driver;
|
|
u8 group_suite_driver;
|
|
u8 key_mgmt_suite_driver;
|
|
|
|
pairwise_suite_driver = convertSuiteToDriver(params->pairwise_suite);
|
|
group_suite_driver = convertSuiteToDriver(params->group_suite);
|
|
key_mgmt_suite_driver = convertSuiteToDriver(params->key_mgmt_suite);
|
|
|
|
if (wpa_driver_atmel_set_suites(drv, pairwise_suite_driver,
|
|
group_suite_driver,
|
|
key_mgmt_suite_driver) < 0){
|
|
printf("wpa_driver_atmel_set_suites.\n");
|
|
ret = -1;
|
|
}
|
|
if (wpa_driver_wext_set_freq(drv->wext, params->freq) < 0) {
|
|
printf("wpa_driver_atmel_set_freq.\n");
|
|
ret = -1;
|
|
}
|
|
#endif
|
|
if (wpa_driver_wext_set_ssid(drv->wext, params->ssid, params->ssid_len)
|
|
< 0) {
|
|
printf("FAILED : wpa_driver_atmel_set_ssid.\n");
|
|
ret = -1;
|
|
}
|
|
if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0) {
|
|
printf("FAILED : wpa_driver_atmel_set_bssid.\n");
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_get_bssid(void *priv, u8 *bssid)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
return wpa_driver_wext_get_bssid(drv->wext, bssid);
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_get_ssid(void *priv, u8 *ssid)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
return wpa_driver_wext_get_ssid(drv->wext, ssid);
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_scan(void *priv,
|
|
struct wpa_driver_scan_params *params)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
return wpa_driver_wext_scan(drv->wext, params);
|
|
}
|
|
|
|
|
|
static struct wpa_scan_results * wpa_driver_atmel_get_scan_results(void *priv)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
return wpa_driver_wext_get_scan_results(drv->wext);
|
|
}
|
|
|
|
|
|
static int wpa_driver_atmel_set_operstate(void *priv, int state)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
return wpa_driver_wext_set_operstate(drv->wext, state);
|
|
}
|
|
|
|
|
|
static void * wpa_driver_atmel_init(void *ctx, const char *ifname)
|
|
{
|
|
struct wpa_driver_atmel_data *drv;
|
|
|
|
drv = os_zalloc(sizeof(*drv));
|
|
if (drv == NULL)
|
|
return NULL;
|
|
drv->wext = wpa_driver_wext_init(ctx, ifname);
|
|
if (drv->wext == NULL) {
|
|
os_free(drv);
|
|
return NULL;
|
|
}
|
|
|
|
drv->ctx = ctx;
|
|
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
|
|
drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
|
|
if (drv->sock < 0) {
|
|
wpa_driver_wext_deinit(drv->wext);
|
|
os_free(drv);
|
|
return NULL;
|
|
}
|
|
|
|
wpa_driver_atmel_set_wpa(drv, 1);
|
|
|
|
return drv;
|
|
}
|
|
|
|
|
|
static void wpa_driver_atmel_deinit(void *priv)
|
|
{
|
|
struct wpa_driver_atmel_data *drv = priv;
|
|
wpa_driver_atmel_set_wpa(drv, 0);
|
|
wpa_driver_wext_deinit(drv->wext);
|
|
close(drv->sock);
|
|
os_free(drv);
|
|
}
|
|
|
|
|
|
const struct wpa_driver_ops wpa_driver_atmel_ops = {
|
|
.name = "atmel",
|
|
.desc = "ATMEL AT76C5XXx (USB, PCMCIA)",
|
|
.get_bssid = wpa_driver_atmel_get_bssid,
|
|
.get_ssid = wpa_driver_atmel_get_ssid,
|
|
.set_key = wpa_driver_atmel_set_key,
|
|
.init = wpa_driver_atmel_init,
|
|
.deinit = wpa_driver_atmel_deinit,
|
|
.set_countermeasures = wpa_driver_atmel_set_countermeasures,
|
|
.scan2 = wpa_driver_atmel_scan,
|
|
.get_scan_results2 = wpa_driver_atmel_get_scan_results,
|
|
.deauthenticate = wpa_driver_atmel_deauthenticate,
|
|
.disassociate = wpa_driver_atmel_disassociate,
|
|
.associate = wpa_driver_atmel_associate,
|
|
.set_operstate = wpa_driver_atmel_set_operstate,
|
|
};
|