2 * WPA Supplicant - driver interaction with Linux ipw2100/2200 drivers
3 * Copyright (c) 2005 Zhu Yi <yi.zhu@intel.com>
4 * Copyright (c) 2004 Lubomir Gelo <lgelo@cnc.sk>
5 * Copyright (c) 2003-2004, Jouni Malinen <j@w1.fi>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * Alternatively, this software may be distributed under the terms of BSD
14 * See README and COPYING for more details.
16 * Please note that ipw2100/2200 drivers change to use generic Linux wireless
17 * extensions if the kernel includes support for WE-18 or newer (Linux 2.6.13
18 * or newer). driver_wext.c should be used in those cases.
22 #include <sys/ioctl.h>
24 #include "wireless_copy.h"
27 #include "driver_wext.h"
29 struct wpa_driver_ipw_data {
30 void *wext; /* private data for driver_wext */
32 char ifname[IFNAMSIZ + 1];
36 /* following definitions must be kept in sync with ipw2100.c and ipw2200.c */
38 #define IPW_IOCTL_WPA_SUPPLICANT SIOCIWFIRSTPRIV+30
40 #define IPW_CMD_SET_WPA_PARAM 1
41 #define IPW_CMD_SET_WPA_IE 2
42 #define IPW_CMD_SET_ENCRYPTION 3
43 #define IPW_CMD_MLME 4
45 #define IPW_PARAM_WPA_ENABLED 1
46 #define IPW_PARAM_TKIP_COUNTERMEASURES 2
47 #define IPW_PARAM_DROP_UNENCRYPTED 3
48 #define IPW_PARAM_PRIVACY_INVOKED 4
49 #define IPW_PARAM_AUTH_ALGS 5
50 #define IPW_PARAM_IEEE_802_1X 6
52 #define IPW_MLME_STA_DEAUTH 1
53 #define IPW_MLME_STA_DISASSOC 2
55 #define IPW_CRYPT_ERR_UNKNOWN_ALG 2
56 #define IPW_CRYPT_ERR_UNKNOWN_ADDR 3
57 #define IPW_CRYPT_ERR_CRYPT_INIT_FAILED 4
58 #define IPW_CRYPT_ERR_KEY_SET_FAILED 5
59 #define IPW_CRYPT_ERR_TX_KEY_SET_FAILED 6
60 #define IPW_CRYPT_ERR_CARD_CONF_FAILED 7
62 #define IPW_CRYPT_ALG_NAME_LEN 16
66 u8 sta_addr[ETH_ALEN];
82 u8 alg[IPW_CRYPT_ALG_NAME_LEN];
94 /* end of ipw2100.c and ipw2200.c code */
96 static int wpa_driver_ipw_set_auth_alg(void *priv, int auth_alg);
98 static int ipw_ioctl(struct wpa_driver_ipw_data *drv,
99 struct ipw_param *param, int len, int show_err)
103 os_memset(&iwr, 0, sizeof(iwr));
104 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
105 iwr.u.data.pointer = (caddr_t) param;
106 iwr.u.data.length = len;
108 if (ioctl(drv->sock, IPW_IOCTL_WPA_SUPPLICANT, &iwr) < 0) {
111 perror("ioctl[IPW_IOCTL_WPA_SUPPLICANT]");
119 static void ipw_show_set_key_error(struct ipw_param *param)
121 switch (param->u.crypt.err) {
122 case IPW_CRYPT_ERR_UNKNOWN_ALG:
123 wpa_printf(MSG_INFO, "Unknown algorithm '%s'.",
125 wpa_printf(MSG_INFO, "You may need to load kernel module to "
126 "register that algorithm.");
127 wpa_printf(MSG_INFO, "E.g., 'modprobe ieee80211_crypt_wep' for"
130 case IPW_CRYPT_ERR_UNKNOWN_ADDR:
131 wpa_printf(MSG_INFO, "Unknown address " MACSTR ".",
132 MAC2STR(param->sta_addr));
134 case IPW_CRYPT_ERR_CRYPT_INIT_FAILED:
135 wpa_printf(MSG_INFO, "Crypt algorithm initialization failed.");
137 case IPW_CRYPT_ERR_KEY_SET_FAILED:
138 wpa_printf(MSG_INFO, "Key setting failed.");
140 case IPW_CRYPT_ERR_TX_KEY_SET_FAILED:
141 wpa_printf(MSG_INFO, "TX key index setting failed.");
143 case IPW_CRYPT_ERR_CARD_CONF_FAILED:
144 wpa_printf(MSG_INFO, "Card configuration failed.");
150 static int ipw_set_wpa_ie(struct wpa_driver_ipw_data *drv,
151 const u8 *wpa_ie, size_t wpa_ie_len)
153 struct ipw_param *param;
155 size_t blen = sizeof(*param) + wpa_ie_len;
157 param = os_zalloc(blen);
161 param->cmd = IPW_CMD_SET_WPA_IE;
162 param->u.wpa_ie.len = wpa_ie_len;
163 os_memcpy(param->u.wpa_ie.data, wpa_ie, wpa_ie_len);
165 ret = ipw_ioctl(drv, param, blen, 1);
172 static int ipw_set_wpa_param(struct wpa_driver_ipw_data *drv, u8 name,
175 struct ipw_param param;
177 os_memset(¶m, 0, sizeof(param));
178 param.cmd = IPW_CMD_SET_WPA_PARAM;
179 param.u.wpa_param.name = name;
180 param.u.wpa_param.value = value;
182 return ipw_ioctl(drv, ¶m, sizeof(param), 1);
186 static int ipw_mlme(struct wpa_driver_ipw_data *drv, const u8 *addr,
189 struct ipw_param param;
191 os_memset(¶m, 0, sizeof(param));
192 os_memcpy(param.sta_addr, addr, ETH_ALEN);
193 param.cmd = IPW_CMD_MLME;
194 param.u.mlme.command = cmd;
195 param.u.mlme.reason_code = reason;
197 return ipw_ioctl(drv, ¶m, sizeof(param), 1);
201 static int wpa_driver_ipw_set_wpa(void *priv, int enabled)
203 struct wpa_driver_ipw_data *drv = priv;
206 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
208 if (!enabled && ipw_set_wpa_ie(drv, NULL, 0) < 0)
211 if (ipw_set_wpa_param(drv, IPW_PARAM_WPA_ENABLED, enabled) < 0)
218 static int wpa_driver_ipw_set_key(const char *ifname, void *priv, wpa_alg alg,
219 const u8 *addr, int key_idx, int set_tx,
220 const u8 *seq, size_t seq_len,
221 const u8 *key, size_t key_len)
223 struct wpa_driver_ipw_data *drv = priv;
224 struct ipw_param *param;
247 wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
248 "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
249 (unsigned long) seq_len, (unsigned long) key_len);
254 blen = sizeof(*param) + key_len;
255 buf = os_zalloc(blen);
259 param = (struct ipw_param *) buf;
260 param->cmd = IPW_CMD_SET_ENCRYPTION;
261 os_memset(param->sta_addr, 0xff, ETH_ALEN);
262 os_strlcpy((char *) param->u.crypt.alg, alg_name,
263 IPW_CRYPT_ALG_NAME_LEN);
264 param->u.crypt.set_tx = set_tx ? 1 : 0;
265 param->u.crypt.idx = key_idx;
266 os_memcpy(param->u.crypt.seq, seq, seq_len);
267 param->u.crypt.key_len = key_len;
268 os_memcpy((u8 *) (param + 1), key, key_len);
270 if (ipw_ioctl(drv, param, blen, 1)) {
271 wpa_printf(MSG_WARNING, "Failed to set encryption.");
272 ipw_show_set_key_error(param);
281 static int wpa_driver_ipw_set_countermeasures(void *priv, int enabled)
283 struct wpa_driver_ipw_data *drv = priv;
284 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
285 return ipw_set_wpa_param(drv, IPW_PARAM_TKIP_COUNTERMEASURES,
291 static int wpa_driver_ipw_set_drop_unencrypted(void *priv, int enabled)
293 struct wpa_driver_ipw_data *drv = priv;
294 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
295 return ipw_set_wpa_param(drv, IPW_PARAM_DROP_UNENCRYPTED,
300 static int wpa_driver_ipw_deauthenticate(void *priv, const u8 *addr,
303 struct wpa_driver_ipw_data *drv = priv;
304 return ipw_mlme(drv, addr, IPW_MLME_STA_DEAUTH, reason_code);
308 static int wpa_driver_ipw_disassociate(void *priv, const u8 *addr,
311 struct wpa_driver_ipw_data *drv = priv;
312 return ipw_mlme(drv, addr, IPW_MLME_STA_DISASSOC, reason_code);
317 wpa_driver_ipw_associate(void *priv, struct wpa_driver_associate_params *params)
319 struct wpa_driver_ipw_data *drv = priv;
321 int unencrypted_eapol;
323 if (wpa_driver_ipw_set_auth_alg(drv, params->auth_alg) < 0)
325 if (wpa_driver_ipw_set_drop_unencrypted(drv, params->drop_unencrypted)
328 if (ipw_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
330 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
331 params->ssid_len) < 0)
333 if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0)
336 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
337 params->key_mgmt_suite == KEY_MGMT_PSK)
338 unencrypted_eapol = 0;
340 unencrypted_eapol = 1;
342 if (ipw_set_wpa_param(drv, IPW_PARAM_IEEE_802_1X,
343 unencrypted_eapol) < 0) {
344 wpa_printf(MSG_DEBUG, "ipw: Failed to configure "
345 "ieee_802_1x param");
352 static int wpa_driver_ipw_set_auth_alg(void *priv, int auth_alg)
354 struct wpa_driver_ipw_data *drv = priv;
357 if (auth_alg & AUTH_ALG_OPEN_SYSTEM)
359 if (auth_alg & AUTH_ALG_SHARED_KEY)
361 if (auth_alg & AUTH_ALG_LEAP)
364 algs = 1; /* at least one algorithm should be set */
366 wpa_printf(MSG_DEBUG, "%s: auth_alg=0x%x", __FUNCTION__, algs);
367 return ipw_set_wpa_param(drv, IPW_PARAM_AUTH_ALGS, algs);
371 static int wpa_driver_ipw_get_bssid(void *priv, u8 *bssid)
373 struct wpa_driver_ipw_data *drv = priv;
374 return wpa_driver_wext_get_bssid(drv->wext, bssid);
378 static int wpa_driver_ipw_get_ssid(void *priv, u8 *ssid)
380 struct wpa_driver_ipw_data *drv = priv;
381 return wpa_driver_wext_get_ssid(drv->wext, ssid);
385 static int wpa_driver_ipw_scan(void *priv, const u8 *ssid, size_t ssid_len)
387 struct wpa_driver_ipw_data *drv = priv;
388 return wpa_driver_wext_scan(drv->wext, ssid, ssid_len);
392 static struct wpa_scan_results * wpa_driver_ipw_get_scan_results(void *priv)
394 struct wpa_driver_ipw_data *drv = priv;
395 return wpa_driver_wext_get_scan_results(drv->wext);
399 static int wpa_driver_ipw_set_operstate(void *priv, int state)
401 struct wpa_driver_ipw_data *drv = priv;
402 return wpa_driver_wext_set_operstate(drv->wext, state);
406 static void * wpa_driver_ipw_init(void *ctx, const char *ifname)
408 struct wpa_driver_ipw_data *drv;
411 wpa_printf(MSG_DEBUG, "%s is called", __FUNCTION__);
412 drv = os_zalloc(sizeof(*drv));
415 drv->wext = wpa_driver_wext_init(ctx, ifname);
416 if (drv->wext == NULL) {
421 ver = wpa_driver_wext_get_version(drv->wext);
423 wpa_printf(MSG_WARNING, "Linux wireless extensions version %d "
425 wpa_printf(MSG_WARNING, "ipw2x00 driver uses driver_wext "
426 "(-Dwext) instead of driver_ipw.");
430 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
431 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
433 wpa_driver_wext_deinit(drv->wext);
438 wpa_driver_ipw_set_wpa(drv, 1);
444 static void wpa_driver_ipw_deinit(void *priv)
446 struct wpa_driver_ipw_data *drv = priv;
447 wpa_driver_ipw_set_wpa(drv, 0);
448 wpa_driver_wext_deinit(drv->wext);
454 const struct wpa_driver_ops wpa_driver_ipw_ops = {
456 .desc = "Intel ipw2100/2200 driver (old; use wext with Linux 2.6.13 "
458 .get_bssid = wpa_driver_ipw_get_bssid,
459 .get_ssid = wpa_driver_ipw_get_ssid,
460 .set_key = wpa_driver_ipw_set_key,
461 .set_countermeasures = wpa_driver_ipw_set_countermeasures,
462 .scan = wpa_driver_ipw_scan,
463 .get_scan_results2 = wpa_driver_ipw_get_scan_results,
464 .deauthenticate = wpa_driver_ipw_deauthenticate,
465 .disassociate = wpa_driver_ipw_disassociate,
466 .associate = wpa_driver_ipw_associate,
467 .init = wpa_driver_ipw_init,
468 .deinit = wpa_driver_ipw_deinit,
469 .set_operstate = wpa_driver_ipw_set_operstate,