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00021 #include "includes.h"
00022 #include <sys/ioctl.h>
00023
00024 #include "wireless_copy.h"
00025 #include "common.h"
00026 #include "driver.h"
00027 #include "driver_wext.h"
00028
00029 struct wpa_driver_ipw_data {
00030 void *wext;
00031 void *ctx;
00032 char ifname[IFNAMSIZ + 1];
00033 int sock;
00034 };
00035
00036
00037
00038 #define IPW_IOCTL_WPA_SUPPLICANT SIOCIWFIRSTPRIV+30
00039
00040 #define IPW_CMD_SET_WPA_PARAM 1
00041 #define IPW_CMD_SET_WPA_IE 2
00042 #define IPW_CMD_SET_ENCRYPTION 3
00043 #define IPW_CMD_MLME 4
00044
00045 #define IPW_PARAM_WPA_ENABLED 1
00046 #define IPW_PARAM_TKIP_COUNTERMEASURES 2
00047 #define IPW_PARAM_DROP_UNENCRYPTED 3
00048 #define IPW_PARAM_PRIVACY_INVOKED 4
00049 #define IPW_PARAM_AUTH_ALGS 5
00050 #define IPW_PARAM_IEEE_802_1X 6
00051
00052 #define IPW_MLME_STA_DEAUTH 1
00053 #define IPW_MLME_STA_DISASSOC 2
00054
00055 #define IPW_CRYPT_ERR_UNKNOWN_ALG 2
00056 #define IPW_CRYPT_ERR_UNKNOWN_ADDR 3
00057 #define IPW_CRYPT_ERR_CRYPT_INIT_FAILED 4
00058 #define IPW_CRYPT_ERR_KEY_SET_FAILED 5
00059 #define IPW_CRYPT_ERR_TX_KEY_SET_FAILED 6
00060 #define IPW_CRYPT_ERR_CARD_CONF_FAILED 7
00061
00062 #define IPW_CRYPT_ALG_NAME_LEN 16
00063
00064 struct ipw_param {
00065 u32 cmd;
00066 u8 sta_addr[ETH_ALEN];
00067 union {
00068 struct {
00069 u8 name;
00070 u32 value;
00071 } wpa_param;
00072 struct {
00073 u32 len;
00074 u8 reserved[32];
00075 u8 data[0];
00076 } wpa_ie;
00077 struct{
00078 u32 command;
00079 u32 reason_code;
00080 } mlme;
00081 struct {
00082 u8 alg[IPW_CRYPT_ALG_NAME_LEN];
00083 u8 set_tx;
00084 u32 err;
00085 u8 idx;
00086 u8 seq[8];
00087 u16 key_len;
00088 u8 key[0];
00089 } crypt;
00090
00091 } u;
00092 };
00093
00094
00095
00096 static int wpa_driver_ipw_set_auth_alg(void *priv, int auth_alg);
00097
00098 static int ipw_ioctl(struct wpa_driver_ipw_data *drv,
00099 struct ipw_param *param, int len, int show_err)
00100 {
00101 struct iwreq iwr;
00102
00103 os_memset(&iwr, 0, sizeof(iwr));
00104 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
00105 iwr.u.data.pointer = (caddr_t) param;
00106 iwr.u.data.length = len;
00107
00108 if (ioctl(drv->sock, IPW_IOCTL_WPA_SUPPLICANT, &iwr) < 0) {
00109 int ret = errno;
00110 if (show_err)
00111 perror("ioctl[IPW_IOCTL_WPA_SUPPLICANT]");
00112 return ret;
00113 }
00114
00115 return 0;
00116 }
00117
00118
00119 static void ipw_show_set_key_error(struct ipw_param *param)
00120 {
00121 switch (param->u.crypt.err) {
00122 case IPW_CRYPT_ERR_UNKNOWN_ALG:
00123 wpa_printf(MSG_INFO, "Unknown algorithm '%s'.",
00124 param->u.crypt.alg);
00125 wpa_printf(MSG_INFO, "You may need to load kernel module to "
00126 "register that algorithm.");
00127 wpa_printf(MSG_INFO, "E.g., 'modprobe ieee80211_crypt_wep' for"
00128 " WEP.");
00129 break;
00130 case IPW_CRYPT_ERR_UNKNOWN_ADDR:
00131 wpa_printf(MSG_INFO, "Unknown address " MACSTR ".",
00132 MAC2STR(param->sta_addr));
00133 break;
00134 case IPW_CRYPT_ERR_CRYPT_INIT_FAILED:
00135 wpa_printf(MSG_INFO, "Crypt algorithm initialization failed.");
00136 break;
00137 case IPW_CRYPT_ERR_KEY_SET_FAILED:
00138 wpa_printf(MSG_INFO, "Key setting failed.");
00139 break;
00140 case IPW_CRYPT_ERR_TX_KEY_SET_FAILED:
00141 wpa_printf(MSG_INFO, "TX key index setting failed.");
00142 break;
00143 case IPW_CRYPT_ERR_CARD_CONF_FAILED:
00144 wpa_printf(MSG_INFO, "Card configuration failed.");
00145 break;
00146 }
00147 }
00148
00149
00150 static int ipw_set_wpa_ie(struct wpa_driver_ipw_data *drv,
00151 const u8 *wpa_ie, size_t wpa_ie_len)
00152 {
00153 struct ipw_param *param;
00154 int ret;
00155 size_t blen = sizeof(*param) + wpa_ie_len;
00156
00157 param = os_zalloc(blen);
00158 if (param == NULL)
00159 return -1;
00160
00161 param->cmd = IPW_CMD_SET_WPA_IE;
00162 param->u.wpa_ie.len = wpa_ie_len;
00163 os_memcpy(param->u.wpa_ie.data, wpa_ie, wpa_ie_len);
00164
00165 ret = ipw_ioctl(drv, param, blen, 1);
00166
00167 os_free(param);
00168 return ret;
00169 }
00170
00171
00172 static int ipw_set_wpa_param(struct wpa_driver_ipw_data *drv, u8 name,
00173 u32 value)
00174 {
00175 struct ipw_param param;
00176
00177 os_memset(¶m, 0, sizeof(param));
00178 param.cmd = IPW_CMD_SET_WPA_PARAM;
00179 param.u.wpa_param.name = name;
00180 param.u.wpa_param.value = value;
00181
00182 return ipw_ioctl(drv, ¶m, sizeof(param), 1);
00183 }
00184
00185
00186 static int ipw_mlme(struct wpa_driver_ipw_data *drv, const u8 *addr,
00187 int cmd, int reason)
00188 {
00189 struct ipw_param param;
00190
00191 os_memset(¶m, 0, sizeof(param));
00192 os_memcpy(param.sta_addr, addr, ETH_ALEN);
00193 param.cmd = IPW_CMD_MLME;
00194 param.u.mlme.command = cmd;
00195 param.u.mlme.reason_code = reason;
00196
00197 return ipw_ioctl(drv, ¶m, sizeof(param), 1);
00198 }
00199
00200
00201 static int wpa_driver_ipw_set_wpa(void *priv, int enabled)
00202 {
00203 struct wpa_driver_ipw_data *drv = priv;
00204 int ret = 0;
00205
00206 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
00207
00208 if (!enabled && ipw_set_wpa_ie(drv, NULL, 0) < 0)
00209 ret = -1;
00210
00211 if (ipw_set_wpa_param(drv, IPW_PARAM_WPA_ENABLED, enabled) < 0)
00212 ret = -1;
00213
00214 return ret;
00215 }
00216
00217
00218 static int wpa_driver_ipw_set_key(const char *ifname, void *priv,
00219 enum wpa_alg alg, const u8 *addr,
00220 int key_idx, int set_tx,
00221 const u8 *seq, size_t seq_len,
00222 const u8 *key, size_t key_len)
00223 {
00224 struct wpa_driver_ipw_data *drv = priv;
00225 struct ipw_param *param;
00226 u8 *buf;
00227 size_t blen;
00228 int ret = 0;
00229 char *alg_name;
00230
00231 switch (alg) {
00232 case WPA_ALG_NONE:
00233 alg_name = "none";
00234 break;
00235 case WPA_ALG_WEP:
00236 alg_name = "WEP";
00237 break;
00238 case WPA_ALG_TKIP:
00239 alg_name = "TKIP";
00240 break;
00241 case WPA_ALG_CCMP:
00242 alg_name = "CCMP";
00243 break;
00244 default:
00245 return -1;
00246 }
00247
00248 wpa_printf(MSG_DEBUG, "%s: alg=%s key_idx=%d set_tx=%d seq_len=%lu "
00249 "key_len=%lu", __FUNCTION__, alg_name, key_idx, set_tx,
00250 (unsigned long) seq_len, (unsigned long) key_len);
00251
00252 if (seq_len > 8)
00253 return -2;
00254
00255 blen = sizeof(*param) + key_len;
00256 buf = os_zalloc(blen);
00257 if (buf == NULL)
00258 return -1;
00259
00260 param = (struct ipw_param *) buf;
00261 param->cmd = IPW_CMD_SET_ENCRYPTION;
00262 os_memset(param->sta_addr, 0xff, ETH_ALEN);
00263 os_strlcpy((char *) param->u.crypt.alg, alg_name,
00264 IPW_CRYPT_ALG_NAME_LEN);
00265 param->u.crypt.set_tx = set_tx ? 1 : 0;
00266 param->u.crypt.idx = key_idx;
00267 os_memcpy(param->u.crypt.seq, seq, seq_len);
00268 param->u.crypt.key_len = key_len;
00269 os_memcpy((u8 *) (param + 1), key, key_len);
00270
00271 if (ipw_ioctl(drv, param, blen, 1)) {
00272 wpa_printf(MSG_WARNING, "Failed to set encryption.");
00273 ipw_show_set_key_error(param);
00274 ret = -1;
00275 }
00276 os_free(buf);
00277
00278 return ret;
00279 }
00280
00281
00282 static int wpa_driver_ipw_set_countermeasures(void *priv, int enabled)
00283 {
00284 struct wpa_driver_ipw_data *drv = priv;
00285 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
00286 return ipw_set_wpa_param(drv, IPW_PARAM_TKIP_COUNTERMEASURES,
00287 enabled);
00288
00289 }
00290
00291
00292 static int wpa_driver_ipw_set_drop_unencrypted(void *priv, int enabled)
00293 {
00294 struct wpa_driver_ipw_data *drv = priv;
00295 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
00296 return ipw_set_wpa_param(drv, IPW_PARAM_DROP_UNENCRYPTED,
00297 enabled);
00298 }
00299
00300
00301 static int wpa_driver_ipw_deauthenticate(void *priv, const u8 *addr,
00302 int reason_code)
00303 {
00304 struct wpa_driver_ipw_data *drv = priv;
00305 return ipw_mlme(drv, addr, IPW_MLME_STA_DEAUTH, reason_code);
00306 }
00307
00308
00309 static int wpa_driver_ipw_disassociate(void *priv, const u8 *addr,
00310 int reason_code)
00311 {
00312 struct wpa_driver_ipw_data *drv = priv;
00313 return ipw_mlme(drv, addr, IPW_MLME_STA_DISASSOC, reason_code);
00314 }
00315
00316
00317 static int
00318 wpa_driver_ipw_associate(void *priv, struct wpa_driver_associate_params *params)
00319 {
00320 struct wpa_driver_ipw_data *drv = priv;
00321 int ret = 0;
00322 int unencrypted_eapol;
00323
00324 if (wpa_driver_ipw_set_auth_alg(drv, params->auth_alg) < 0)
00325 ret = -1;
00326 if (wpa_driver_ipw_set_drop_unencrypted(drv, params->drop_unencrypted)
00327 < 0)
00328 ret = -1;
00329 if (ipw_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
00330 ret = -1;
00331 if (wpa_driver_wext_set_ssid(drv->wext, params->ssid,
00332 params->ssid_len) < 0)
00333 ret = -1;
00334 if (wpa_driver_wext_set_bssid(drv->wext, params->bssid) < 0)
00335 ret = -1;
00336
00337 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
00338 params->key_mgmt_suite == KEY_MGMT_PSK)
00339 unencrypted_eapol = 0;
00340 else
00341 unencrypted_eapol = 1;
00342
00343 if (ipw_set_wpa_param(drv, IPW_PARAM_IEEE_802_1X,
00344 unencrypted_eapol) < 0) {
00345 wpa_printf(MSG_DEBUG, "ipw: Failed to configure "
00346 "ieee_802_1x param");
00347 }
00348
00349 return ret;
00350 }
00351
00352
00353 static int wpa_driver_ipw_set_auth_alg(void *priv, int auth_alg)
00354 {
00355 struct wpa_driver_ipw_data *drv = priv;
00356 int algs = 0;
00357
00358 if (auth_alg & WPA_AUTH_ALG_OPEN)
00359 algs |= 1;
00360 if (auth_alg & WPA_AUTH_ALG_SHARED)
00361 algs |= 2;
00362 if (auth_alg & WPA_AUTH_ALG_LEAP)
00363 algs |= 4;
00364 if (algs == 0)
00365 algs = 1;
00366
00367 wpa_printf(MSG_DEBUG, "%s: auth_alg=0x%x", __FUNCTION__, algs);
00368 return ipw_set_wpa_param(drv, IPW_PARAM_AUTH_ALGS, algs);
00369 }
00370
00371
00372 static int wpa_driver_ipw_get_bssid(void *priv, u8 *bssid)
00373 {
00374 struct wpa_driver_ipw_data *drv = priv;
00375 return wpa_driver_wext_get_bssid(drv->wext, bssid);
00376 }
00377
00378
00379 static int wpa_driver_ipw_get_ssid(void *priv, u8 *ssid)
00380 {
00381 struct wpa_driver_ipw_data *drv = priv;
00382 return wpa_driver_wext_get_ssid(drv->wext, ssid);
00383 }
00384
00385
00386 static int wpa_driver_ipw_scan(void *priv,
00387 struct wpa_driver_scan_params *params)
00388 {
00389 struct wpa_driver_ipw_data *drv = priv;
00390 return wpa_driver_wext_scan(drv->wext, params);
00391 }
00392
00393
00394 static struct wpa_scan_results * wpa_driver_ipw_get_scan_results(void *priv)
00395 {
00396 struct wpa_driver_ipw_data *drv = priv;
00397 return wpa_driver_wext_get_scan_results(drv->wext);
00398 }
00399
00400
00401 static int wpa_driver_ipw_set_operstate(void *priv, int state)
00402 {
00403 struct wpa_driver_ipw_data *drv = priv;
00404 return wpa_driver_wext_set_operstate(drv->wext, state);
00405 }
00406
00407
00408 static void * wpa_driver_ipw_init(void *ctx, const char *ifname)
00409 {
00410 struct wpa_driver_ipw_data *drv;
00411 int ver;
00412
00413 wpa_printf(MSG_DEBUG, "%s is called", __FUNCTION__);
00414 drv = os_zalloc(sizeof(*drv));
00415 if (drv == NULL)
00416 return NULL;
00417 drv->wext = wpa_driver_wext_init(ctx, ifname);
00418 if (drv->wext == NULL) {
00419 os_free(drv);
00420 return NULL;
00421 }
00422
00423 ver = wpa_driver_wext_get_version(drv->wext);
00424 if (ver >= 18) {
00425 wpa_printf(MSG_WARNING, "Linux wireless extensions version %d "
00426 "detected.", ver);
00427 wpa_printf(MSG_WARNING, "ipw2x00 driver uses driver_wext "
00428 "(-Dwext) instead of driver_ipw.");
00429 }
00430
00431 drv->ctx = ctx;
00432 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
00433 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
00434 if (drv->sock < 0) {
00435 wpa_driver_wext_deinit(drv->wext);
00436 os_free(drv);
00437 return NULL;
00438 }
00439
00440 wpa_driver_ipw_set_wpa(drv, 1);
00441
00442 return drv;
00443 }
00444
00445
00446 static void wpa_driver_ipw_deinit(void *priv)
00447 {
00448 struct wpa_driver_ipw_data *drv = priv;
00449 wpa_driver_ipw_set_wpa(drv, 0);
00450 wpa_driver_wext_deinit(drv->wext);
00451 close(drv->sock);
00452 os_free(drv);
00453 }
00454
00455
00456 const struct wpa_driver_ops wpa_driver_ipw_ops = {
00457 .name = "ipw",
00458 .desc = "Intel ipw2100/2200 driver (old; use wext with Linux 2.6.13 "
00459 "or newer)",
00460 .get_bssid = wpa_driver_ipw_get_bssid,
00461 .get_ssid = wpa_driver_ipw_get_ssid,
00462 .set_key = wpa_driver_ipw_set_key,
00463 .set_countermeasures = wpa_driver_ipw_set_countermeasures,
00464 .scan2 = wpa_driver_ipw_scan,
00465 .get_scan_results2 = wpa_driver_ipw_get_scan_results,
00466 .deauthenticate = wpa_driver_ipw_deauthenticate,
00467 .disassociate = wpa_driver_ipw_disassociate,
00468 .associate = wpa_driver_ipw_associate,
00469 .init = wpa_driver_ipw_init,
00470 .deinit = wpa_driver_ipw_deinit,
00471 .set_operstate = wpa_driver_ipw_set_operstate,
00472 };