2 * WPA Supplicant - Driver interaction with Atmel Wireless LAN drivers
3 * Copyright (c) 2000-2005, ATMEL Corporation
4 * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * Alternatively, this software may be distributed under the terms of BSD
13 * See README and COPYING for more details.
16 /******************************************************************************
17 Copyright 2000-2001 ATMEL Corporation.
19 WPA Supplicant - driver interaction with Atmel Wireless lan drivers.
21 This is free software; you can redistribute it and/or modify
22 it under the terms of the GNU General Public License as published by
23 the Free Software Foundation; either version 2 of the License, or
24 (at your option) any later version.
26 This program is distributed in the hope that it will be useful,
27 but WITHOUT ANY WARRANTY; without even the implied warranty of
28 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 GNU General Public License for more details.
31 You should have received a copy of the GNU General Public License
32 along with Atmel wireless lan drivers; if not, write to the Free Software
33 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
35 ******************************************************************************/
38 * Alternatively, this software may be distributed under the terms of BSD
43 #include <sys/ioctl.h>
45 #include "wireless_copy.h"
48 #include "driver_wext.h"
49 #include "wpa_supplicant.h"
51 struct wpa_driver_atmel_data {
52 void *wext; /* private data for driver_wext */
54 char ifname[IFNAMSIZ + 1];
59 #define ATMEL_WPA_IOCTL (SIOCIWFIRSTPRIV + 2)
60 #define ATMEL_WPA_IOCTL_PARAM (SIOCIWFIRSTPRIV + 3)
61 #define ATMEL_WPA_IOCTL_GET_PARAM (SIOCIWFIRSTPRIV + 4)
64 /* ATMEL_WPA_IOCTL ioctl() cmd: */
66 SET_WPA_ENCRYPTION = 1,
67 SET_CIPHER_SUITES = 2,
72 /* ATMEL_WPA_IOCTL_PARAM ioctl() cmd: */
75 ATMEL_PARAM_PRIVACY_INVOKED = 2,
76 ATMEL_PARAM_WPA_TYPE = 3
79 #define MAX_KEY_LENGTH 40
82 unsigned char sta_addr[6];
90 u8 key[MAX_KEY_LENGTH];
102 static int atmel_ioctl(struct wpa_driver_atmel_data *drv,
103 struct atmel_param *param,
104 int len, int show_err)
108 os_memset(&iwr, 0, sizeof(iwr));
109 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
110 iwr.u.data.pointer = (caddr_t) param;
111 iwr.u.data.length = len;
113 if (ioctl(drv->sock, ATMEL_WPA_IOCTL, &iwr) < 0) {
117 perror("ioctl[ATMEL_WPA_IOCTL]");
125 static int atmel2param(struct wpa_driver_atmel_data *drv, int param, int value)
130 os_memset(&iwr, 0, sizeof(iwr));
131 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
132 i = (int *) iwr.u.name;
136 if (ioctl(drv->sock, ATMEL_WPA_IOCTL_PARAM, &iwr) < 0) {
137 perror("ioctl[ATMEL_WPA_IOCTL_PARAM]");
145 static int wpa_driver_atmel_set_wpa_ie(struct wpa_driver_atmel_data *drv,
146 const char *wpa_ie, size_t wpa_ie_len)
148 struct atmel_param *param;
150 size_t blen = ATMEL_GENERIC_ELEMENT_HDR_LEN + wpa_ie_len;
151 if (blen < sizeof(*param))
152 blen = sizeof(*param);
154 param = os_zalloc(blen);
158 param->cmd = ATMEL_SET_GENERIC_ELEMENT;
159 param->u.generic_elem.len = wpa_ie_len;
160 os_memcpy(param->u.generic_elem.data, wpa_ie, wpa_ie_len);
161 res = atmel_ioctl(drv, param, blen, 1);
170 static int wpa_driver_atmel_set_wpa(void *priv, int enabled)
172 struct wpa_driver_atmel_data *drv = priv;
175 printf("wpa_driver_atmel_set_wpa %s\n", drv->ifname);
177 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
180 if (!enabled && wpa_driver_atmel_set_wpa_ie(drv, NULL, 0) < 0)
183 if (atmel2param(drv, ATMEL_PARAM_PRIVACY_INVOKED, enabled) < 0)
185 if (atmel2param(drv, ATMEL_PARAM_WPA, enabled) < 0)
192 static int wpa_driver_atmel_set_key(void *priv, wpa_alg alg,
193 const u8 *addr, int key_idx,
194 int set_tx, const u8 *seq, size_t seq_len,
195 const u8 *key, size_t key_len)
197 struct wpa_driver_atmel_data *drv = priv;
199 struct atmel_param *param;
227 wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
228 "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
229 (unsigned long) seq_len, (unsigned long) key_len);
234 blen = sizeof(*param) + key_len;
235 buf = os_zalloc(blen);
239 param = (struct atmel_param *) buf;
241 param->cmd = SET_WPA_ENCRYPTION;
244 os_memset(param->sta_addr, 0xff, ETH_ALEN);
246 os_memcpy(param->sta_addr, addr, ETH_ALEN);
248 param->alg = alg_type;
249 param->key_idx = key_idx;
250 param->set_tx = set_tx;
251 os_memcpy(param->seq, seq, seq_len);
252 param->seq_len = seq_len;
253 param->key_len = key_len;
254 os_memcpy((u8 *)param->key, key, key_len);
256 if (atmel_ioctl(drv, param, blen, 1)) {
257 wpa_printf(MSG_WARNING, "Failed to set encryption.");
258 /* TODO: show key error*/
267 static int wpa_driver_atmel_set_countermeasures(void *priv,
271 printf("wpa_driver_atmel_set_countermeasures - not yet "
277 static int wpa_driver_atmel_set_drop_unencrypted(void *priv,
281 printf("wpa_driver_atmel_set_drop_unencrypted - not yet "
287 static int wpa_driver_atmel_mlme(void *priv, const u8 *addr, int cmd,
290 struct wpa_driver_atmel_data *drv = priv;
291 struct atmel_param param;
293 int mgmt_error = 0xaa;
295 os_memset(¶m, 0, sizeof(param));
296 os_memcpy(param.sta_addr, addr, ETH_ALEN);
298 param.mlme.reason_code = reason_code;
299 param.mlme.state = mgmt_error;
300 ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
306 static int wpa_driver_atmel_set_suites(struct wpa_driver_atmel_data *drv,
307 u8 pairwise_suite, u8 group_suite,
310 struct atmel_param param;
313 os_memset(¶m, 0, sizeof(param));
314 param.cmd = SET_CIPHER_SUITES;
315 param.pairwise_suite = pairwise_suite;
316 param.group_suite = group_suite;
317 param.key_mgmt_suite = key_mgmt_suite;
319 ret = atmel_ioctl(drv, ¶m, sizeof(param), 1);
325 static int wpa_driver_atmel_deauthenticate(void *priv, const u8 *addr,
328 struct wpa_driver_atmel_data *drv = priv;
329 printf("wpa_driver_atmel_deauthenticate\n");
330 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
331 return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DEAUTH,
337 static int wpa_driver_atmel_disassociate(void *priv, const u8 *addr,
340 struct wpa_driver_atmel_data *drv = priv;
341 printf("wpa_driver_atmel_disassociate\n");
342 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
343 return wpa_driver_atmel_mlme(drv, addr, MLME_STA_DISASSOC,
350 /* Atmel driver uses specific values for each cipher suite */
351 static int convertSuiteToDriver(wpa_cipher suite)
381 wpa_driver_atmel_associate(void *priv,
382 struct wpa_driver_associate_params *params)
384 struct wpa_driver_atmel_data *drv = priv;
387 u8 pairwise_suite_driver;
388 u8 group_suite_driver;
389 u8 key_mgmt_suite_driver;
391 pairwise_suite_driver = convertSuiteToDriver(params->pairwise_suite);
392 group_suite_driver = convertSuiteToDriver(params->group_suite);
393 key_mgmt_suite_driver = convertSuiteToDriver(params->key_mgmt_suite);
395 if (wpa_driver_atmel_set_suites(drv, pairwise_suite_driver,
397 key_mgmt_suite_driver) < 0){
398 printf("wpa_driver_atmel_set_suites.\n");
401 if (wpa_driver_wext_set_freq(drv->wext, params->freq) < 0) {
402 printf("wpa_driver_atmel_set_freq.\n");
406 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid, params->ssid_len)
408 printf("FAILED : wpa_driver_atmel_set_ssid.\n");
411 if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0) {
412 printf("FAILED : wpa_driver_atmel_set_bssid.\n");
420 static int wpa_driver_atmel_get_bssid(void *priv, u8 *bssid)
422 struct wpa_driver_atmel_data *drv = priv;
423 return wpa_driver_wext_get_bssid(drv->wext, bssid);
427 static int wpa_driver_atmel_get_ssid(void *priv, u8 *ssid)
429 struct wpa_driver_atmel_data *drv = priv;
430 return wpa_driver_wext_get_ssid(drv->wext, ssid);
434 static int wpa_driver_atmel_scan(void *priv, const u8 *ssid, size_t ssid_len)
436 struct wpa_driver_atmel_data *drv = priv;
437 return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
441 static int wpa_driver_atmel_get_scan_results(void *priv,
442 struct wpa_scan_result *results,
445 struct wpa_driver_atmel_data *drv = priv;
446 return wpa_driver_wext_get_scan_results(drv->wext, results, max_size);
450 static int wpa_driver_atmel_set_operstate(void *priv, int state)
452 struct wpa_driver_atmel_data *drv = priv;
453 return wpa_driver_wext_set_operstate(drv->wext, state);
457 static void * wpa_driver_atmel_init(void *ctx, const char *ifname)
459 struct wpa_driver_atmel_data *drv;
461 drv = os_zalloc(sizeof(*drv));
464 drv->wext = wpa_driver_wext_init(ctx, ifname);
465 if (drv->wext == NULL) {
471 os_strncpy(drv->ifname, ifname, sizeof(drv->ifname));
472 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
474 wpa_driver_wext_deinit(drv->wext);
483 static void wpa_driver_atmel_deinit(void *priv)
485 struct wpa_driver_atmel_data *drv = priv;
486 wpa_driver_wext_deinit(drv->wext);
492 const struct wpa_driver_ops wpa_driver_atmel_ops = {
494 .desc = "ATMEL AT76C5XXx (USB, PCMCIA)",
495 .get_bssid = wpa_driver_atmel_get_bssid,
496 .get_ssid = wpa_driver_atmel_get_ssid,
497 .set_wpa = wpa_driver_atmel_set_wpa,
498 .set_key = wpa_driver_atmel_set_key,
499 .init = wpa_driver_atmel_init,
500 .deinit = wpa_driver_atmel_deinit,
501 .set_countermeasures = wpa_driver_atmel_set_countermeasures,
502 .set_drop_unencrypted = wpa_driver_atmel_set_drop_unencrypted,
503 .scan = wpa_driver_atmel_scan,
504 .get_scan_results = wpa_driver_atmel_get_scan_results,
505 .deauthenticate = wpa_driver_atmel_deauthenticate,
506 .disassociate = wpa_driver_atmel_disassociate,
507 .associate = wpa_driver_atmel_associate,
508 .set_operstate = wpa_driver_atmel_set_operstate,