vcs.maemo.org Git - wpasupplicant/blob - src/drivers/driver_wext.c

   1 /*
   2  * WPA Supplicant - driver interaction with generic Linux Wireless Extensions
   3  * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  *
  14  * This file implements a driver interface for the Linux Wireless Extensions.
  15  * When used with WE-18 or newer, this interface can be used as-is with number
  16  * of drivers. In addition to this, some of the common functions in this file
  17  * can be used by other driver interface implementations that use generic WE
  18  * ioctls, but require private ioctls for some of the functionality.
  19  */
  20
  21 #include "includes.h"
  22 #include <sys/ioctl.h>
  23 #include <net/if_arp.h>
  24
  25 #include "wireless_copy.h"
  26 #include "common.h"
  27 #include "driver.h"
  28 #include "eloop.h"
  29 #include "priv_netlink.h"
  30 #include "driver_wext.h"
  31 #include "ieee802_11_defs.h"
  32 #include "wpa_common.h"
  33
  34
  35 static int wpa_driver_wext_flush_pmkid(void *priv);
  36 static int wpa_driver_wext_get_range(void *priv);
  37 static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv);
  38 static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv);
  39
  40
  41 static int wpa_driver_wext_send_oper_ifla(struct wpa_driver_wext_data *drv,
  42                                           int linkmode, int operstate)
  43 {
  44         struct {
  45                 struct nlmsghdr hdr;
  46                 struct ifinfomsg ifinfo;
  47                 char opts[16];
  48         } req;
  49         struct rtattr *rta;
  50         static int nl_seq;
  51         ssize_t ret;
  52
  53         os_memset(&req, 0, sizeof(req));
  54
  55         req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
  56         req.hdr.nlmsg_type = RTM_SETLINK;
  57         req.hdr.nlmsg_flags = NLM_F_REQUEST;
  58         req.hdr.nlmsg_seq = ++nl_seq;
  59         req.hdr.nlmsg_pid = 0;
  60
  61         req.ifinfo.ifi_family = AF_UNSPEC;
  62         req.ifinfo.ifi_type = 0;
  63         req.ifinfo.ifi_index = drv->ifindex;
  64         req.ifinfo.ifi_flags = 0;
  65         req.ifinfo.ifi_change = 0;
  66
  67         if (linkmode != -1) {
  68                 rta = (struct rtattr *)
  69                         ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
  70                 rta->rta_type = IFLA_LINKMODE;
  71                 rta->rta_len = RTA_LENGTH(sizeof(char));
  72                 *((char *) RTA_DATA(rta)) = linkmode;
  73                 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
  74                         RTA_LENGTH(sizeof(char));
  75         }
  76         if (operstate != -1) {
  77                 rta = (struct rtattr *)
  78                         ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
  79                 rta->rta_type = IFLA_OPERSTATE;
  80                 rta->rta_len = RTA_LENGTH(sizeof(char));
  81                 *((char *) RTA_DATA(rta)) = operstate;
  82                 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
  83                         RTA_LENGTH(sizeof(char));
  84         }
  85
  86         wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d",
  87                    linkmode, operstate);
  88
  89         ret = send(drv->event_sock, &req, req.hdr.nlmsg_len, 0);
  90         if (ret < 0) {
  91                 wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: "
  92                            "%s (assume operstate is not supported)",
  93                            strerror(errno));
  94         }
  95
  96         return ret < 0 ? -1 : 0;
  97 }
  98
  99
 100 int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
 101                                    int idx, u32 value)
 102 {
 103         struct iwreq iwr;
 104         int ret = 0;
 105
 106         os_memset(&iwr, 0, sizeof(iwr));
 107         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 108         iwr.u.param.flags = idx & IW_AUTH_INDEX;
 109         iwr.u.param.value = value;
 110
 111         if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
 112                 if (errno != EOPNOTSUPP) {
 113                         wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
 114                                    "value 0x%x) failed: %s)",
 115                                    idx, value, strerror(errno));
 116                 }
 117                 ret = errno == EOPNOTSUPP ? -2 : -1;
 118         }
 119
 120         return ret;
 121 }
 122
 123
 124 /**
 125  * wpa_driver_wext_get_bssid - Get BSSID, SIOCGIWAP
 126  * @priv: Pointer to private wext data from wpa_driver_wext_init()
 127  * @bssid: Buffer for BSSID
 128  * Returns: 0 on success, -1 on failure
 129  */
 130 int wpa_driver_wext_get_bssid(void *priv, u8 *bssid)
 131 {
 132         struct wpa_driver_wext_data *drv = priv;
 133         struct iwreq iwr;
 134         int ret = 0;
 135
 136         os_memset(&iwr, 0, sizeof(iwr));
 137         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 138
 139         if (ioctl(drv->ioctl_sock, SIOCGIWAP, &iwr) < 0) {
 140                 perror("ioctl[SIOCGIWAP]");
 141                 ret = -1;
 142         }
 143         os_memcpy(bssid, iwr.u.ap_addr.sa_data, ETH_ALEN);
 144
 145         return ret;
 146 }
 147
 148
 149 /**
 150  * wpa_driver_wext_set_bssid - Set BSSID, SIOCSIWAP
 151  * @priv: Pointer to private wext data from wpa_driver_wext_init()
 152  * @bssid: BSSID
 153  * Returns: 0 on success, -1 on failure
 154  */
 155 int wpa_driver_wext_set_bssid(void *priv, const u8 *bssid)
 156 {
 157         struct wpa_driver_wext_data *drv = priv;
 158         struct iwreq iwr;
 159         int ret = 0;
 160
 161         os_memset(&iwr, 0, sizeof(iwr));
 162         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 163         iwr.u.ap_addr.sa_family = ARPHRD_ETHER;
 164         if (bssid)
 165                 os_memcpy(iwr.u.ap_addr.sa_data, bssid, ETH_ALEN);
 166         else
 167                 os_memset(iwr.u.ap_addr.sa_data, 0, ETH_ALEN);
 168
 169         if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr) < 0) {
 170                 perror("ioctl[SIOCSIWAP]");
 171                 ret = -1;
 172         }
 173
 174         return ret;
 175 }
 176
 177
 178 /**
 179  * wpa_driver_wext_get_ssid - Get SSID, SIOCGIWESSID
 180  * @priv: Pointer to private wext data from wpa_driver_wext_init()
 181  * @ssid: Buffer for the SSID; must be at least 32 bytes long
 182  * Returns: SSID length on success, -1 on failure
 183  */
 184 int wpa_driver_wext_get_ssid(void *priv, u8 *ssid)
 185 {
 186         struct wpa_driver_wext_data *drv = priv;
 187         struct iwreq iwr;
 188         int ret = 0;
 189
 190         os_memset(&iwr, 0, sizeof(iwr));
 191         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 192         iwr.u.essid.pointer = (caddr_t) ssid;
 193         iwr.u.essid.length = 32;
 194
 195         if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
 196                 perror("ioctl[SIOCGIWESSID]");
 197                 ret = -1;
 198         } else {
 199                 ret = iwr.u.essid.length;
 200                 if (ret > 32)
 201                         ret = 32;
 202                 /* Some drivers include nul termination in the SSID, so let's
 203                  * remove it here before further processing. WE-21 changes this
 204                  * to explicitly require the length _not_ to include nul
 205                  * termination. */
 206                 if (ret > 0 && ssid[ret - 1] == '\0' &&
 207                     drv->we_version_compiled < 21)
 208                         ret--;
 209         }
 210
 211         return ret;
 212 }
 213
 214
 215 /**
 216  * wpa_driver_wext_set_ssid - Set SSID, SIOCSIWESSID
 217  * @priv: Pointer to private wext data from wpa_driver_wext_init()
 218  * @ssid: SSID
 219  * @ssid_len: Length of SSID (0..32)
 220  * Returns: 0 on success, -1 on failure
 221  */
 222 int wpa_driver_wext_set_ssid(void *priv, const u8 *ssid, size_t ssid_len)
 223 {
 224         struct wpa_driver_wext_data *drv = priv;
 225         struct iwreq iwr;
 226         int ret = 0;
 227         char buf[33];
 228
 229         if (ssid_len > 32)
 230                 return -1;
 231
 232         os_memset(&iwr, 0, sizeof(iwr));
 233         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 234         /* flags: 1 = ESSID is active, 0 = not (promiscuous) */
 235         iwr.u.essid.flags = (ssid_len != 0);
 236         os_memset(buf, 0, sizeof(buf));
 237         os_memcpy(buf, ssid, ssid_len);
 238         iwr.u.essid.pointer = (caddr_t) buf;
 239         if (drv->we_version_compiled < 21) {
 240                 /* For historic reasons, set SSID length to include one extra
 241                  * character, C string nul termination, even though SSID is
 242                  * really an octet string that should not be presented as a C
 243                  * string. Some Linux drivers decrement the length by one and
 244                  * can thus end up missing the last octet of the SSID if the
 245                  * length is not incremented here. WE-21 changes this to
 246                  * explicitly require the length _not_ to include nul
 247                  * termination. */
 248                 if (ssid_len)
 249                         ssid_len++;
 250         }
 251         iwr.u.essid.length = ssid_len;
 252
 253         if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
 254                 perror("ioctl[SIOCSIWESSID]");
 255                 ret = -1;
 256         }
 257
 258         return ret;
 259 }
 260
 261
 262 /**
 263  * wpa_driver_wext_set_freq - Set frequency/channel, SIOCSIWFREQ
 264  * @priv: Pointer to private wext data from wpa_driver_wext_init()
 265  * @freq: Frequency in MHz
 266  * Returns: 0 on success, -1 on failure
 267  */
 268 int wpa_driver_wext_set_freq(void *priv, int freq)
 269 {
 270         struct wpa_driver_wext_data *drv = priv;
 271         struct iwreq iwr;
 272         int ret = 0;
 273
 274         os_memset(&iwr, 0, sizeof(iwr));
 275         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
 276         iwr.u.freq.m = freq * 100000;
 277         iwr.u.freq.e = 1;
 278
 279         if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
 280                 perror("ioctl[SIOCSIWFREQ]");
 281                 ret = -1;
 282         }
 283
 284         return ret;
 285 }
 286
 287
 288 static void
 289 wpa_driver_wext_event_wireless_custom(void *ctx, char *custom)
 290 {
 291         union wpa_event_data data;
 292
 293         wpa_printf(MSG_MSGDUMP, "WEXT: Custom wireless event: '%s'",
 294                    custom);
 295
 296         os_memset(&data, 0, sizeof(data));
 297         /* Host AP driver */
 298         if (os_strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
 299                 data.michael_mic_failure.unicast =
 300                         os_strstr(custom, " unicast ") != NULL;
 301                 /* TODO: parse parameters(?) */
 302                 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
 303         } else if (os_strncmp(custom, "ASSOCINFO(ReqIEs=", 17) == 0) {
 304                 char *spos;
 305                 int bytes;
 306
 307                 spos = custom + 17;
 308
 309                 bytes = strspn(spos, "0123456789abcdefABCDEF");
 310                 if (!bytes || (bytes & 1))
 311                         return;
 312                 bytes /= 2;
 313
 314                 data.assoc_info.req_ies = os_malloc(bytes);
 315                 if (data.assoc_info.req_ies == NULL)
 316                         return;
 317
 318                 data.assoc_info.req_ies_len = bytes;
 319                 hexstr2bin(spos, data.assoc_info.req_ies, bytes);
 320
 321                 spos += bytes * 2;
 322
 323                 data.assoc_info.resp_ies = NULL;
 324                 data.assoc_info.resp_ies_len = 0;
 325
 326                 if (os_strncmp(spos, " RespIEs=", 9) == 0) {
 327                         spos += 9;
 328
 329                         bytes = strspn(spos, "0123456789abcdefABCDEF");
 330                         if (!bytes || (bytes & 1))
 331                                 goto done;
 332                         bytes /= 2;
 333
 334                         data.assoc_info.resp_ies = os_malloc(bytes);
 335                         if (data.assoc_info.resp_ies == NULL)
 336                                 goto done;
 337
 338                         data.assoc_info.resp_ies_len = bytes;
 339                         hexstr2bin(spos, data.assoc_info.resp_ies, bytes);
 340                 }
 341
 342                 wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
 343
 344         done:
 345                 os_free(data.assoc_info.resp_ies);
 346                 os_free(data.assoc_info.req_ies);
 347 #ifdef CONFIG_PEERKEY
 348         } else if (os_strncmp(custom, "STKSTART.request=", 17) == 0) {
 349                 if (hwaddr_aton(custom + 17, data.stkstart.peer)) {
 350                         wpa_printf(MSG_DEBUG, "WEXT: unrecognized "
 351                                    "STKSTART.request '%s'", custom + 17);
 352                         return;
 353                 }
 354                 wpa_supplicant_event(ctx, EVENT_STKSTART, &data);
 355 #endif /* CONFIG_PEERKEY */
 356         }
 357 }
 358
 359
 360 static int wpa_driver_wext_event_wireless_michaelmicfailure(
 361         void *ctx, const char *ev, size_t len)
 362 {
 363         const struct iw_michaelmicfailure *mic;
 364         union wpa_event_data data;
 365
 366         if (len < sizeof(*mic))
 367                 return -1;
 368
 369         mic = (const struct iw_michaelmicfailure *) ev;
 370
 371         wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
 372                    "flags=0x%x src_addr=" MACSTR, mic->flags,
 373                    MAC2STR(mic->src_addr.sa_data));
 374
 375         os_memset(&data, 0, sizeof(data));
 376         data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
 377         wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
 378
 379         return 0;
 380 }
 381
 382
 383 static int wpa_driver_wext_event_wireless_pmkidcand(
 384         struct wpa_driver_wext_data *drv, const char *ev, size_t len)
 385 {
 386         const struct iw_pmkid_cand *cand;
 387         union wpa_event_data data;
 388         const u8 *addr;
 389
 390         if (len < sizeof(*cand))
 391                 return -1;
 392
 393         cand = (const struct iw_pmkid_cand *) ev;
 394         addr = (const u8 *) cand->bssid.sa_data;
 395
 396         wpa_printf(MSG_DEBUG, "PMKID candidate wireless event: "
 397                    "flags=0x%x index=%d bssid=" MACSTR, cand->flags,
 398                    cand->index, MAC2STR(addr));
 399
 400         os_memset(&data, 0, sizeof(data));
 401         os_memcpy(data.pmkid_candidate.bssid, addr, ETH_ALEN);
 402         data.pmkid_candidate.index = cand->index;
 403         data.pmkid_candidate.preauth = cand->flags & IW_PMKID_CAND_PREAUTH;
 404         wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
 405
 406         return 0;
 407 }
 408
 409
 410 static int wpa_driver_wext_event_wireless_assocreqie(
 411         struct wpa_driver_wext_data *drv, const char *ev, int len)
 412 {
 413         if (len < 0)
 414                 return -1;
 415
 416         wpa_hexdump(MSG_DEBUG, "AssocReq IE wireless event", (const u8 *) ev,
 417                     len);
 418         os_free(drv->assoc_req_ies);
 419         drv->assoc_req_ies = os_malloc(len);
 420         if (drv->assoc_req_ies == NULL) {
 421                 drv->assoc_req_ies_len = 0;
 422                 return -1;
 423         }
 424         os_memcpy(drv->assoc_req_ies, ev, len);
 425         drv->assoc_req_ies_len = len;
 426
 427         return 0;
 428 }
 429
 430
 431 static int wpa_driver_wext_event_wireless_assocrespie(
 432         struct wpa_driver_wext_data *drv, const char *ev, int len)
 433 {
 434         if (len < 0)
 435                 return -1;
 436
 437         wpa_hexdump(MSG_DEBUG, "AssocResp IE wireless event", (const u8 *) ev,
 438                     len);
 439         os_free(drv->assoc_resp_ies);
 440         drv->assoc_resp_ies = os_malloc(len);
 441         if (drv->assoc_resp_ies == NULL) {
 442                 drv->assoc_resp_ies_len = 0;
 443                 return -1;
 444         }
 445         os_memcpy(drv->assoc_resp_ies, ev, len);
 446         drv->assoc_resp_ies_len = len;
 447
 448         return 0;
 449 }
 450
 451
 452 static void wpa_driver_wext_event_assoc_ies(struct wpa_driver_wext_data *drv)
 453 {
 454         union wpa_event_data data;
 455
 456         if (drv->assoc_req_ies == NULL && drv->assoc_resp_ies == NULL)
 457                 return;
 458
 459         os_memset(&data, 0, sizeof(data));
 460         if (drv->assoc_req_ies) {
 461                 data.assoc_info.req_ies = drv->assoc_req_ies;
 462                 drv->assoc_req_ies = NULL;
 463                 data.assoc_info.req_ies_len = drv->assoc_req_ies_len;
 464         }
 465         if (drv->assoc_resp_ies) {
 466                 data.assoc_info.resp_ies = drv->assoc_resp_ies;
 467                 drv->assoc_resp_ies = NULL;
 468                 data.assoc_info.resp_ies_len = drv->assoc_resp_ies_len;
 469         }
 470
 471         wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
 472
 473         os_free(data.assoc_info.req_ies);
 474         os_free(data.assoc_info.resp_ies);
 475 }
 476
 477
 478 static void wpa_driver_wext_event_wireless(struct wpa_driver_wext_data *drv,
 479                                            void *ctx, char *data, int len)
 480 {
 481         struct iw_event iwe_buf, *iwe = &iwe_buf;
 482         char *pos, *end, *custom, *buf;
 483
 484         pos = data;
 485         end = data + len;
 486
 487         while (pos + IW_EV_LCP_LEN <= end) {
 488                 /* Event data may be unaligned, so make a local, aligned copy
 489                  * before processing. */
 490                 os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
 491                 wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
 492                            iwe->cmd, iwe->len);
 493                 if (iwe->len <= IW_EV_LCP_LEN)
 494                         return;
 495
 496                 custom = pos + IW_EV_POINT_LEN;
 497                 if (drv->we_version_compiled > 18 &&
 498                     (iwe->cmd == IWEVMICHAELMICFAILURE ||
 499                      iwe->cmd == IWEVCUSTOM ||
 500                      iwe->cmd == IWEVASSOCREQIE ||
 501                      iwe->cmd == IWEVASSOCRESPIE ||
 502                      iwe->cmd == IWEVPMKIDCAND)) {
 503                         /* WE-19 removed the pointer from struct iw_point */
 504                         char *dpos = (char *) &iwe_buf.u.data.length;
 505                         int dlen = dpos - (char *) &iwe_buf;
 506                         os_memcpy(dpos, pos + IW_EV_LCP_LEN,
 507                                   sizeof(struct iw_event) - dlen);
 508                 } else {
 509                         os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
 510                         custom += IW_EV_POINT_OFF;
 511                 }
 512
 513                 switch (iwe->cmd) {
 514                 case SIOCGIWAP:
 515                         wpa_printf(MSG_DEBUG, "Wireless event: new AP: "
 516                                    MACSTR,
 517                                    MAC2STR((u8 *) iwe->u.ap_addr.sa_data));
 518                         if (is_zero_ether_addr(
 519                                     (const u8 *) iwe->u.ap_addr.sa_data) ||
 520                             os_memcmp(iwe->u.ap_addr.sa_data,
 521                                       "\x44\x44\x44\x44\x44\x44", ETH_ALEN) ==
 522                             0) {
 523                                 os_free(drv->assoc_req_ies);
 524                                 drv->assoc_req_ies = NULL;
 525                                 os_free(drv->assoc_resp_ies);
 526                                 drv->assoc_resp_ies = NULL;
 527                                 wpa_supplicant_event(ctx, EVENT_DISASSOC,
 528                                                      NULL);
 529
 530                         } else {
 531                                 wpa_driver_wext_event_assoc_ies(drv);
 532                                 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
 533                         }
 534                         break;
 535                 case IWEVMICHAELMICFAILURE:
 536                         if (custom + iwe->u.data.length > end) {
 537                                 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
 538                                            "IWEVMICHAELMICFAILURE length");
 539                                 return;
 540                         }
 541                         wpa_driver_wext_event_wireless_michaelmicfailure(
 542                                 ctx, custom, iwe->u.data.length);
 543                         break;
 544                 case IWEVCUSTOM:
 545                         if (custom + iwe->u.data.length > end) {
 546                                 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
 547                                            "IWEVCUSTOM length");
 548                                 return;
 549                         }
 550                         buf = os_malloc(iwe->u.data.length + 1);
 551                         if (buf == NULL)
 552                                 return;
 553                         os_memcpy(buf, custom, iwe->u.data.length);
 554                         buf[iwe->u.data.length] = '\0';
 555                         wpa_driver_wext_event_wireless_custom(ctx, buf);
 556                         os_free(buf);
 557                         break;
 558                 case SIOCGIWSCAN:
 559                         drv->scan_complete_events = 1;
 560                         eloop_cancel_timeout(wpa_driver_wext_scan_timeout,
 561                                              drv, ctx);
 562                         wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
 563                         break;
 564                 case IWEVASSOCREQIE:
 565                         if (custom + iwe->u.data.length > end) {
 566                                 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
 567                                            "IWEVASSOCREQIE length");
 568                                 return;
 569                         }
 570                         wpa_driver_wext_event_wireless_assocreqie(
 571                                 drv, custom, iwe->u.data.length);
 572                         break;
 573                 case IWEVASSOCRESPIE:
 574                         if (custom + iwe->u.data.length > end) {
 575                                 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
 576                                            "IWEVASSOCRESPIE length");
 577                                 return;
 578                         }
 579                         wpa_driver_wext_event_wireless_assocrespie(
 580                                 drv, custom, iwe->u.data.length);
 581                         break;
 582                 case IWEVPMKIDCAND:
 583                         if (custom + iwe->u.data.length > end) {
 584                                 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
 585                                            "IWEVPMKIDCAND length");
 586                                 return;
 587                         }
 588                         wpa_driver_wext_event_wireless_pmkidcand(
 589                                 drv, custom, iwe->u.data.length);
 590                         break;
 591                 }
 592
 593                 pos += iwe->len;
 594         }
 595 }
 596
 597
 598 static void wpa_driver_wext_event_link(struct wpa_driver_wext_data *drv,
 599                                        void *ctx, char *buf, size_t len,
 600                                        int del)
 601 {
 602         union wpa_event_data event;
 603
 604         os_memset(&event, 0, sizeof(event));
 605         if (len > sizeof(event.interface_status.ifname))
 606                 len = sizeof(event.interface_status.ifname) - 1;
 607         os_memcpy(event.interface_status.ifname, buf, len);
 608         event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
 609                 EVENT_INTERFACE_ADDED;
 610
 611         wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
 612                    del ? "DEL" : "NEW",
 613                    event.interface_status.ifname,
 614                    del ? "removed" : "added");
 615
 616         if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
 617                 if (del)
 618                         drv->if_removed = 1;
 619                 else
 620                         drv->if_removed = 0;
 621         }
 622
 623         wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
 624 }
 625
 626
 627 static int wpa_driver_wext_own_ifname(struct wpa_driver_wext_data *drv,
 628                                       struct nlmsghdr *h)
 629 {
 630         struct ifinfomsg *ifi;
 631         int attrlen, nlmsg_len, rta_len;
 632         struct rtattr *attr;
 633
 634         ifi = NLMSG_DATA(h);
 635
 636         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
 637
 638         attrlen = h->nlmsg_len - nlmsg_len;
 639         if (attrlen < 0)
 640                 return 0;
 641
 642         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
 643
 644         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 645         while (RTA_OK(attr, attrlen)) {
 646                 if (attr->rta_type == IFLA_IFNAME) {
 647                         if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
 648                             == 0)
 649                                 return 1;
 650                         else
 651                                 break;
 652                 }
 653                 attr = RTA_NEXT(attr, attrlen);
 654         }
 655
 656         return 0;
 657 }
 658
 659
 660 static int wpa_driver_wext_own_ifindex(struct wpa_driver_wext_data *drv,
 661                                        int ifindex, struct nlmsghdr *h)
 662 {
 663         if (drv->ifindex == ifindex || drv->ifindex2 == ifindex)
 664                 return 1;
 665
 666         if (drv->if_removed && wpa_driver_wext_own_ifname(drv, h)) {
 667                 drv->ifindex = if_nametoindex(drv->ifname);
 668                 wpa_printf(MSG_DEBUG, "WEXT: Update ifindex for a removed "
 669                            "interface");
 670                 wpa_driver_wext_finish_drv_init(drv);
 671                 return 1;
 672         }
 673
 674         return 0;
 675 }
 676
 677
 678 static void wpa_driver_wext_event_rtm_newlink(struct wpa_driver_wext_data *drv,
 679                                               void *ctx, struct nlmsghdr *h,
 680                                               size_t len)
 681 {
 682         struct ifinfomsg *ifi;
 683         int attrlen, nlmsg_len, rta_len;
 684         struct rtattr * attr;
 685
 686         if (len < sizeof(*ifi))
 687                 return;
 688
 689         ifi = NLMSG_DATA(h);
 690
 691         if (!wpa_driver_wext_own_ifindex(drv, ifi->ifi_index, h)) {
 692                 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
 693                            ifi->ifi_index);
 694                 return;
 695         }
 696
 697         wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
 698                    "(%s%s%s%s)",
 699                    drv->operstate, ifi->ifi_flags,
 700                    (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
 701                    (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
 702                    (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
 703                    (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
 704         /*
 705          * Some drivers send the association event before the operup event--in
 706          * this case, lifting operstate in wpa_driver_wext_set_operstate()
 707          * fails. This will hit us when wpa_supplicant does not need to do
 708          * IEEE 802.1X authentication
 709          */
 710         if (drv->operstate == 1 &&
 711             (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
 712             !(ifi->ifi_flags & IFF_RUNNING))
 713                 wpa_driver_wext_send_oper_ifla(drv, -1, IF_OPER_UP);
 714
 715         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
 716
 717         attrlen = h->nlmsg_len - nlmsg_len;
 718         if (attrlen < 0)
 719                 return;
 720
 721         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
 722
 723         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 724         while (RTA_OK(attr, attrlen)) {
 725                 if (attr->rta_type == IFLA_WIRELESS) {
 726                         wpa_driver_wext_event_wireless(
 727                                 drv, ctx, ((char *) attr) + rta_len,
 728                                 attr->rta_len - rta_len);
 729                 } else if (attr->rta_type == IFLA_IFNAME) {
 730                         wpa_driver_wext_event_link(drv, ctx,
 731                                                    ((char *) attr) + rta_len,
 732                                                    attr->rta_len - rta_len, 0);
 733                 }
 734                 attr = RTA_NEXT(attr, attrlen);
 735         }
 736 }
 737
 738
 739 static void wpa_driver_wext_event_rtm_dellink(struct wpa_driver_wext_data *drv,
 740                                               void *ctx, struct nlmsghdr *h,
 741                                               size_t len)
 742 {
 743         struct ifinfomsg *ifi;
 744         int attrlen, nlmsg_len, rta_len;
 745         struct rtattr * attr;
 746
 747         if (len < sizeof(*ifi))
 748                 return;
 749
 750         ifi = NLMSG_DATA(h);
 751
 752         nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
 753
 754         attrlen = h->nlmsg_len - nlmsg_len;
 755         if (attrlen < 0)
 756                 return;
 757
 758         attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
 759
 760         rta_len = RTA_ALIGN(sizeof(struct rtattr));
 761         while (RTA_OK(attr, attrlen)) {
 762                 if (attr->rta_type == IFLA_IFNAME) {
 763                         wpa_driver_wext_event_link(drv,  ctx,
 764                                                    ((char *) attr) + rta_len,
 765                                                    attr->rta_len - rta_len, 1);
 766                 }
 767                 attr = RTA_NEXT(attr, attrlen);
 768         }
 769 }
 770
 771
 772 static void wpa_driver_wext_event_receive(int sock, void *eloop_ctx,
 773                                           void *sock_ctx)
 774 {
 775         char buf[8192];
 776         int left;
 777         struct sockaddr_nl from;
 778         socklen_t fromlen;
 779         struct nlmsghdr *h;
 780         int max_events = 10;
 781
 782 try_again:
 783         fromlen = sizeof(from);
 784         left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
 785                         (struct sockaddr *) &from, &fromlen);
 786         if (left < 0) {
 787                 if (errno != EINTR && errno != EAGAIN)
 788                         perror("recvfrom(netlink)");
 789                 return;
 790         }
 791
 792         h = (struct nlmsghdr *) buf;
 793         while (left >= (int) sizeof(*h)) {
 794                 int len, plen;
 795
 796                 len = h->nlmsg_len;
 797                 plen = len - sizeof(*h);
 798                 if (len > left || plen < 0) {
 799                         wpa_printf(MSG_DEBUG, "Malformed netlink message: "
 800                                    "len=%d left=%d plen=%d",
 801                                    len, left, plen);
 802                         break;
 803                 }
 804
 805                 switch (h->nlmsg_type) {
 806                 case RTM_NEWLINK:
 807                         wpa_driver_wext_event_rtm_newlink(eloop_ctx, sock_ctx,
 808                                                           h, plen);
 809                         break;
 810                 case RTM_DELLINK:
 811                         wpa_driver_wext_event_rtm_dellink(eloop_ctx, sock_ctx,
 812                                                           h, plen);
 813                         break;
 814                 }
 815
 816                 len = NLMSG_ALIGN(len);
 817                 left -= len;
 818                 h = (struct nlmsghdr *) ((char *) h + len);
 819         }
 820
 821         if (left > 0) {
 822                 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
 823                            "message", left);
 824         }
 825
 826         if (--max_events > 0) {
 827                 /*
 828                  * Try to receive all events in one eloop call in order to
 829                  * limit race condition on cases where AssocInfo event, Assoc
 830                  * event, and EAPOL frames are received more or less at the
 831                  * same time. We want to process the event messages first
 832                  * before starting EAPOL processing.
 833                  */
 834                 goto try_again;
 835         }
 836 }
 837
 838
 839 static int wpa_driver_wext_get_ifflags_ifname(struct wpa_driver_wext_data *drv,
 840                                               const char *ifname, int *flags)
 841 {
 842         struct ifreq ifr;
 843
 844         os_memset(&ifr, 0, sizeof(ifr));
 845         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 846         if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
 847                 perror("ioctl[SIOCGIFFLAGS]");
 848                 return -1;
 849         }
 850         *flags = ifr.ifr_flags & 0xffff;
 851         return 0;
 852 }
 853
 854
 855 /**
 856  * wpa_driver_wext_get_ifflags - Get interface flags (SIOCGIFFLAGS)
 857  * @drv: driver_wext private data
 858  * @flags: Pointer to returned flags value
 859  * Returns: 0 on success, -1 on failure
 860  */
 861 int wpa_driver_wext_get_ifflags(struct wpa_driver_wext_data *drv, int *flags)
 862 {
 863         return wpa_driver_wext_get_ifflags_ifname(drv, drv->ifname, flags);
 864 }
 865
 866
 867 static int wpa_driver_wext_set_ifflags_ifname(struct wpa_driver_wext_data *drv,
 868                                               const char *ifname, int flags)
 869 {
 870         struct ifreq ifr;
 871
 872         os_memset(&ifr, 0, sizeof(ifr));
 873         os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
 874         ifr.ifr_flags = flags & 0xffff;
 875         if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
 876                 perror("SIOCSIFFLAGS");
 877                 return -1;
 878         }
 879         return 0;
 880 }
 881
 882
 883 /**
 884  * wpa_driver_wext_set_ifflags - Set interface flags (SIOCSIFFLAGS)
 885  * @drv: driver_wext private data
 886  * @flags: New value for flags
 887  * Returns: 0 on success, -1 on failure
 888  */
 889 int wpa_driver_wext_set_ifflags(struct wpa_driver_wext_data *drv, int flags)
 890 {
 891         return wpa_driver_wext_set_ifflags_ifname(drv, drv->ifname, flags);
 892 }
 893
 894
 895 /**
 896  * wpa_driver_wext_init - Initialize WE driver interface
 897  * @ctx: context to be used when calling wpa_supplicant functions,
 898  * e.g., wpa_supplicant_event()
 899  * @ifname: interface name, e.g., wlan0
 900  * Returns: Pointer to private data, %NULL on failure
 901  */
 902 void * wpa_driver_wext_init(void *ctx, const char *ifname)
 903 {
 904         int s;
 905         struct sockaddr_nl local;
 906         struct wpa_driver_wext_data *drv;
 907
 908         drv = os_zalloc(sizeof(*drv));
 909         if (drv == NULL)
 910                 return NULL;
 911         drv->ctx = ctx;
 912         os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
 913
 914         drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
 915         if (drv->ioctl_sock < 0) {
 916                 perror("socket(PF_INET,SOCK_DGRAM)");
 917                 goto err1;
 918         }
 919
 920         s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
 921         if (s < 0) {
 922                 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
 923                 goto err2;
 924         }
 925         drv->event_sock = s;
 926
 927         os_memset(&local, 0, sizeof(local));
 928         local.nl_family = AF_NETLINK;
 929         local.nl_groups = RTMGRP_LINK;
 930         if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
 931                 perror("bind(netlink)");
 932                 goto err3;
 933         }
 934
 935         eloop_register_read_sock(s, wpa_driver_wext_event_receive, drv, ctx);
 936
 937         drv->mlme_sock = -1;
 938
 939         if (wpa_driver_wext_finish_drv_init(drv) < 0)
 940                 goto err4;
 941
 942         return drv;
 943
 944 err4:
 945         eloop_unregister_read_sock(drv->event_sock);
 946 err3:
 947         close(drv->event_sock);
 948 err2:
 949         close(drv->ioctl_sock);
 950 err1:
 951         os_free(drv);
 952         return NULL;
 953 }
 954
 955
 956 static int wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
 957 {
 958         int flags;
 959
 960         if (wpa_driver_wext_get_ifflags(drv, &flags) != 0) {
 961                 wpa_printf(MSG_ERROR, "Could not get interface '%s' flags",
 962                            drv->ifname);
 963                 return -1;
 964         }
 965
 966         if (!(flags & IFF_UP)) {
 967                 if (wpa_driver_wext_set_ifflags(drv, flags | IFF_UP) != 0) {
 968                         wpa_printf(MSG_ERROR, "Could not set interface '%s' "
 969                                    "UP", drv->ifname);
 970                         return -1;
 971                 } else {
 972                         /*
 973                          * Wait some time to allow driver to initialize before
 974                          * starting configuring the driver. This seems to be
 975                          * needed at least some drivers that load firmware etc.
 976                          * when the interface is set up.
 977                          */
 978                         wpa_printf(MSG_DEBUG, "Interface %s set UP - waiting "
 979                                    "a second for the driver to complete "
 980                                    "initialization", drv->ifname);
 981                         sleep(1);
 982                 }
 983         }
 984
 985         /*
 986          * Make sure that the driver does not have any obsolete PMKID entries.
 987          */
 988         wpa_driver_wext_flush_pmkid(drv);
 989
 990         if (wpa_driver_wext_set_mode(drv, 0) < 0) {
 991                 wpa_printf(MSG_DEBUG, "Could not configure driver to use "
 992                            "managed mode");
 993                 /* Try to use it anyway */
 994         }
 995
 996         wpa_driver_wext_get_range(drv);
 997
 998         /*
 999          * Unlock the driver's BSSID and force to a random SSID to clear any
1000          * previous association the driver might have when the supplicant
1001          * starts up.
1002          */
1003         wpa_driver_wext_disconnect(drv);
1004
1005         drv->ifindex = if_nametoindex(drv->ifname);
1006
1007         if (os_strncmp(drv->ifname, "wlan", 4) == 0) {
1008                 /*
1009                  * Host AP driver may use both wlan# and wifi# interface in
1010                  * wireless events. Since some of the versions included WE-18
1011                  * support, let's add the alternative ifindex also from
1012                  * driver_wext.c for the time being. This may be removed at
1013                  * some point once it is believed that old versions of the
1014                  * driver are not in use anymore.
1015                  */
1016                 char ifname2[IFNAMSIZ + 1];
1017                 os_strlcpy(ifname2, drv->ifname, sizeof(ifname2));
1018                 os_memcpy(ifname2, "wifi", 4);
1019                 wpa_driver_wext_alternative_ifindex(drv, ifname2);
1020         }
1021
1022         wpa_driver_wext_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
1023
1024         return 0;
1025 }
1026
1027
1028 /**
1029  * wpa_driver_wext_deinit - Deinitialize WE driver interface
1030  * @priv: Pointer to private wext data from wpa_driver_wext_init()
1031  *
1032  * Shut down driver interface and processing of driver events. Free
1033  * private data buffer if one was allocated in wpa_driver_wext_init().
1034  */
1035 void wpa_driver_wext_deinit(void *priv)
1036 {
1037         struct wpa_driver_wext_data *drv = priv;
1038         int flags;
1039
1040         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
1041
1042         /*
1043          * Clear possibly configured driver parameters in order to make it
1044          * easier to use the driver after wpa_supplicant has been terminated.
1045          */
1046         wpa_driver_wext_disconnect(drv);
1047
1048         wpa_driver_wext_send_oper_ifla(priv, 0, IF_OPER_UP);
1049
1050         eloop_unregister_read_sock(drv->event_sock);
1051         if (drv->mlme_sock >= 0)
1052                 eloop_unregister_read_sock(drv->mlme_sock);
1053
1054         if (wpa_driver_wext_get_ifflags(drv, &flags) == 0)
1055                 (void) wpa_driver_wext_set_ifflags(drv, flags & ~IFF_UP);
1056
1057         close(drv->event_sock);
1058         close(drv->ioctl_sock);
1059         if (drv->mlme_sock >= 0)
1060                 close(drv->mlme_sock);
1061         os_free(drv->assoc_req_ies);
1062         os_free(drv->assoc_resp_ies);
1063         os_free(drv);
1064 }
1065
1066
1067 /**
1068  * wpa_driver_wext_scan_timeout - Scan timeout to report scan completion
1069  * @eloop_ctx: Unused
1070  * @timeout_ctx: ctx argument given to wpa_driver_wext_init()
1071  *
1072  * This function can be used as registered timeout when starting a scan to
1073  * generate a scan completed event if the driver does not report this.
1074  */
1075 void wpa_driver_wext_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1076 {
1077         wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1078         wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1079 }
1080
1081
1082 /**
1083  * wpa_driver_wext_scan - Request the driver to initiate scan
1084  * @priv: Pointer to private wext data from wpa_driver_wext_init()
1085  * @ssid: Specific SSID to scan for (ProbeReq) or %NULL to scan for
1086  *      all SSIDs (either active scan with wildcard SSID or passive
1087  *      scan)
1088  * @ssid_len: Length of the SSID
1089  * Returns: 0 on success, -1 on failure
1090  */
1091 int wpa_driver_wext_scan(void *priv, const u8 *ssid, size_t ssid_len)
1092 {
1093         struct wpa_driver_wext_data *drv = priv;
1094         struct iwreq iwr;
1095         int ret = 0, timeout;
1096         struct iw_scan_req req;
1097
1098         if (ssid_len > IW_ESSID_MAX_SIZE) {
1099                 wpa_printf(MSG_DEBUG, "%s: too long SSID (%lu)",
1100                            __FUNCTION__, (unsigned long) ssid_len);
1101                 return -1;
1102         }
1103
1104         os_memset(&iwr, 0, sizeof(iwr));
1105         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1106
1107         if (ssid && ssid_len) {
1108                 os_memset(&req, 0, sizeof(req));
1109                 req.essid_len = ssid_len;
1110                 req.bssid.sa_family = ARPHRD_ETHER;
1111                 os_memset(req.bssid.sa_data, 0xff, ETH_ALEN);
1112                 os_memcpy(req.essid, ssid, ssid_len);
1113                 iwr.u.data.pointer = (caddr_t) &req;
1114                 iwr.u.data.length = sizeof(req);
1115                 iwr.u.data.flags = IW_SCAN_THIS_ESSID;
1116         }
1117
1118         if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
1119                 perror("ioctl[SIOCSIWSCAN]");
1120                 ret = -1;
1121         }
1122
1123         /* Not all drivers generate "scan completed" wireless event, so try to
1124          * read results after a timeout. */
1125         timeout = 5;
1126         if (drv->scan_complete_events) {
1127                 /*
1128                  * The driver seems to deliver SIOCGIWSCAN events to notify
1129                  * when scan is complete, so use longer timeout to avoid race
1130                  * conditions with scanning and following association request.
1131                  */
1132                 timeout = 30;
1133         }
1134         wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1135                    "seconds", ret, timeout);
1136         eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
1137         eloop_register_timeout(timeout, 0, wpa_driver_wext_scan_timeout, drv,
1138                                drv->ctx);
1139
1140         return ret;
1141 }
1142
1143
1144 static u8 * wpa_driver_wext_giwscan(struct wpa_driver_wext_data *drv,
1145                                     size_t *len)
1146 {
1147         struct iwreq iwr;
1148         u8 *res_buf;
1149         size_t res_buf_len;
1150
1151         res_buf_len = IW_SCAN_MAX_DATA;
1152         for (;;) {
1153                 res_buf = os_malloc(res_buf_len);
1154                 if (res_buf == NULL)
1155                         return NULL;
1156                 os_memset(&iwr, 0, sizeof(iwr));
1157                 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1158                 iwr.u.data.pointer = res_buf;
1159                 iwr.u.data.length = res_buf_len;
1160
1161                 if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
1162                         break;
1163
1164                 if (errno == E2BIG && res_buf_len < 65535) {
1165                         os_free(res_buf);
1166                         res_buf = NULL;
1167                         res_buf_len *= 2;
1168                         if (res_buf_len > 65535)
1169                                 res_buf_len = 65535; /* 16-bit length field */
1170                         wpa_printf(MSG_DEBUG, "Scan results did not fit - "
1171                                    "trying larger buffer (%lu bytes)",
1172                                    (unsigned long) res_buf_len);
1173                 } else {
1174                         perror("ioctl[SIOCGIWSCAN]");
1175                         os_free(res_buf);
1176                         return NULL;
1177                 }
1178         }
1179
1180         if (iwr.u.data.length > res_buf_len) {
1181                 os_free(res_buf);
1182                 return NULL;
1183         }
1184         *len = iwr.u.data.length;
1185
1186         return res_buf;
1187 }
1188
1189
1190 /*
1191  * Data structure for collecting WEXT scan results. This is needed to allow
1192  * the various methods of reporting IEs to be combined into a single IE buffer.
1193  */
1194 struct wext_scan_data {
1195         struct wpa_scan_res res;
1196         u8 *ie;
1197         size_t ie_len;
1198         u8 ssid[32];
1199         size_t ssid_len;
1200         int maxrate;
1201 };
1202
1203
1204 static void wext_get_scan_mode(struct iw_event *iwe,
1205                                struct wext_scan_data *res)
1206 {
1207         if (iwe->u.mode == IW_MODE_ADHOC)
1208                 res->res.caps |= IEEE80211_CAP_IBSS;
1209         else if (iwe->u.mode == IW_MODE_MASTER || iwe->u.mode == IW_MODE_INFRA)
1210                 res->res.caps |= IEEE80211_CAP_ESS;
1211 }
1212
1213
1214 static void wext_get_scan_ssid(struct iw_event *iwe,
1215                                struct wext_scan_data *res, char *custom,
1216                                char *end)
1217 {
1218         int ssid_len = iwe->u.essid.length;
1219         if (custom + ssid_len > end)
1220                 return;
1221         if (iwe->u.essid.flags &&
1222             ssid_len > 0 &&
1223             ssid_len <= IW_ESSID_MAX_SIZE) {
1224                 os_memcpy(res->ssid, custom, ssid_len);
1225                 res->ssid_len = ssid_len;
1226         }
1227 }
1228
1229
1230 static void wext_get_scan_freq(struct iw_event *iwe,
1231                                struct wext_scan_data *res)
1232 {
1233         int divi = 1000000, i;
1234
1235         if (iwe->u.freq.e == 0) {
1236                 /*
1237                  * Some drivers do not report frequency, but a channel.
1238                  * Try to map this to frequency by assuming they are using
1239                  * IEEE 802.11b/g.  But don't overwrite a previously parsed
1240                  * frequency if the driver sends both frequency and channel,
1241                  * since the driver may be sending an A-band channel that we
1242                  * don't handle here.
1243                  */
1244
1245                 if (res->res.freq)
1246                         return;
1247
1248                 if (iwe->u.freq.m >= 1 && iwe->u.freq.m <= 13) {
1249                         res->res.freq = 2407 + 5 * iwe->u.freq.m;
1250                         return;
1251                 } else if (iwe->u.freq.m == 14) {
1252                         res->res.freq = 2484;
1253                         return;
1254                 }
1255         }
1256
1257         if (iwe->u.freq.e > 6) {
1258                 wpa_printf(MSG_DEBUG, "Invalid freq in scan results (BSSID="
1259                            MACSTR " m=%d e=%d)",
1260                            MAC2STR(res->res.bssid), iwe->u.freq.m,
1261                            iwe->u.freq.e);
1262                 return;
1263         }
1264
1265         for (i = 0; i < iwe->u.freq.e; i++)
1266                 divi /= 10;
1267         res->res.freq = iwe->u.freq.m / divi;
1268 }
1269
1270
1271 static void wext_get_scan_qual(struct iw_event *iwe,
1272                                struct wext_scan_data *res)
1273 {
1274         res->res.qual = iwe->u.qual.qual;
1275         res->res.noise = iwe->u.qual.noise;
1276         res->res.level = iwe->u.qual.level;
1277         if (iwe->u.qual.updated & IW_QUAL_QUAL_INVALID)
1278                 res->res.flags |= WPA_SCAN_QUAL_INVALID;
1279         if (iwe->u.qual.updated & IW_QUAL_LEVEL_INVALID)
1280                 res->res.flags |= WPA_SCAN_LEVEL_INVALID;
1281         if (iwe->u.qual.updated & IW_QUAL_NOISE_INVALID)
1282                 res->res.flags |= WPA_SCAN_NOISE_INVALID;
1283         if (iwe->u.qual.updated & IW_QUAL_DBM)
1284                 res->res.flags |= WPA_SCAN_LEVEL_DBM;
1285 }
1286
1287
1288 static void wext_get_scan_encode(struct iw_event *iwe,
1289                                  struct wext_scan_data *res)
1290 {
1291         if (!(iwe->u.data.flags & IW_ENCODE_DISABLED))
1292                 res->res.caps |= IEEE80211_CAP_PRIVACY;
1293 }
1294
1295
1296 static void wext_get_scan_rate(struct iw_event *iwe,
1297                                struct wext_scan_data *res, char *pos,
1298                                char *end)
1299 {
1300         int maxrate;
1301         char *custom = pos + IW_EV_LCP_LEN;
1302         struct iw_param p;
1303         size_t clen;
1304
1305         clen = iwe->len;
1306         if (custom + clen > end)
1307                 return;
1308         maxrate = 0;
1309         while (((ssize_t) clen) >= (ssize_t) sizeof(struct iw_param)) {
1310                 /* Note: may be misaligned, make a local, aligned copy */
1311                 os_memcpy(&p, custom, sizeof(struct iw_param));
1312                 if (p.value > maxrate)
1313                         maxrate = p.value;
1314                 clen -= sizeof(struct iw_param);
1315                 custom += sizeof(struct iw_param);
1316         }
1317
1318         /* Convert the maxrate from WE-style (b/s units) to
1319          * 802.11 rates (500000 b/s units).
1320          */
1321         res->maxrate = maxrate / 500000;
1322 }
1323
1324
1325 static void wext_get_scan_iwevgenie(struct iw_event *iwe,
1326                                     struct wext_scan_data *res, char *custom,
1327                                     char *end)
1328 {
1329         char *genie, *gpos, *gend;
1330         u8 *tmp;
1331
1332         if (iwe->u.data.length == 0)
1333                 return;
1334
1335         gpos = genie = custom;
1336         gend = genie + iwe->u.data.length;
1337         if (gend > end) {
1338                 wpa_printf(MSG_INFO, "IWEVGENIE overflow");
1339                 return;
1340         }
1341
1342         tmp = os_realloc(res->ie, res->ie_len + gend - gpos);
1343         if (tmp == NULL)
1344                 return;
1345         os_memcpy(tmp + res->ie_len, gpos, gend - gpos);
1346         res->ie = tmp;
1347         res->ie_len += gend - gpos;
1348 }
1349
1350
1351 static void wext_get_scan_custom(struct iw_event *iwe,
1352                                  struct wext_scan_data *res, char *custom,
1353                                  char *end)
1354 {
1355         size_t clen;
1356         u8 *tmp;
1357
1358         clen = iwe->u.data.length;
1359         if (custom + clen > end)
1360                 return;
1361
1362         if (clen > 7 && os_strncmp(custom, "wpa_ie=", 7) == 0) {
1363                 char *spos;
1364                 int bytes;
1365                 spos = custom + 7;
1366                 bytes = custom + clen - spos;
1367                 if (bytes & 1 || bytes == 0)
1368                         return;
1369                 bytes /= 2;
1370                 tmp = os_realloc(res->ie, res->ie_len + bytes);
1371                 if (tmp == NULL)
1372                         return;
1373                 hexstr2bin(spos, tmp + res->ie_len, bytes);
1374                 res->ie = tmp;
1375                 res->ie_len += bytes;
1376         } else if (clen > 7 && os_strncmp(custom, "rsn_ie=", 7) == 0) {
1377                 char *spos;
1378                 int bytes;
1379                 spos = custom + 7;
1380                 bytes = custom + clen - spos;
1381                 if (bytes & 1 || bytes == 0)
1382                         return;
1383                 bytes /= 2;
1384                 tmp = os_realloc(res->ie, res->ie_len + bytes);
1385                 if (tmp == NULL)
1386                         return;
1387                 hexstr2bin(spos, tmp + res->ie_len, bytes);
1388                 res->ie = tmp;
1389                 res->ie_len += bytes;
1390         } else if (clen > 4 && os_strncmp(custom, "tsf=", 4) == 0) {
1391                 char *spos;
1392                 int bytes;
1393                 u8 bin[8];
1394                 spos = custom + 4;
1395                 bytes = custom + clen - spos;
1396                 if (bytes != 16) {
1397                         wpa_printf(MSG_INFO, "Invalid TSF length (%d)", bytes);
1398                         return;
1399                 }
1400                 bytes /= 2;
1401                 hexstr2bin(spos, bin, bytes);
1402                 res->res.tsf += WPA_GET_BE64(bin);
1403         }
1404 }
1405
1406
1407 static int wext_19_iw_point(struct wpa_driver_wext_data *drv, u16 cmd)
1408 {
1409         return drv->we_version_compiled > 18 &&
1410                 (cmd == SIOCGIWESSID || cmd == SIOCGIWENCODE ||
1411                  cmd == IWEVGENIE || cmd == IWEVCUSTOM);
1412 }
1413
1414
1415 static void wpa_driver_wext_add_scan_entry(struct wpa_scan_results *res,
1416                                            struct wext_scan_data *data)
1417 {
1418         struct wpa_scan_res **tmp;
1419         struct wpa_scan_res *r;
1420         size_t extra_len;
1421         u8 *pos, *end, *ssid_ie = NULL, *rate_ie = NULL;
1422
1423         /* Figure out whether we need to fake any IEs */
1424         pos = data->ie;
1425         end = pos + data->ie_len;
1426         while (pos && pos + 1 < end) {
1427                 if (pos + 2 + pos[1] > end)
1428                         break;
1429                 if (pos[0] == WLAN_EID_SSID)
1430                         ssid_ie = pos;
1431                 else if (pos[0] == WLAN_EID_SUPP_RATES)
1432                         rate_ie = pos;
1433                 else if (pos[0] == WLAN_EID_EXT_SUPP_RATES)
1434                         rate_ie = pos;
1435                 pos += 2 + pos[1];
1436         }
1437
1438         extra_len = 0;
1439         if (ssid_ie == NULL)
1440                 extra_len += 2 + data->ssid_len;
1441         if (rate_ie == NULL && data->maxrate)
1442                 extra_len += 3;
1443
1444         r = os_zalloc(sizeof(*r) + extra_len + data->ie_len);
1445         if (r == NULL)
1446                 return;
1447         os_memcpy(r, &data->res, sizeof(*r));
1448         r->ie_len = extra_len + data->ie_len;
1449         pos = (u8 *) (r + 1);
1450         if (ssid_ie == NULL) {
1451                 /*
1452                  * Generate a fake SSID IE since the driver did not report
1453                  * a full IE list.
1454                  */
1455                 *pos++ = WLAN_EID_SSID;
1456                 *pos++ = data->ssid_len;
1457                 os_memcpy(pos, data->ssid, data->ssid_len);
1458                 pos += data->ssid_len;
1459         }
1460         if (rate_ie == NULL && data->maxrate) {
1461                 /*
1462                  * Generate a fake Supported Rates IE since the driver did not
1463                  * report a full IE list.
1464                  */
1465                 *pos++ = WLAN_EID_SUPP_RATES;
1466                 *pos++ = 1;
1467                 *pos++ = data->maxrate;
1468         }
1469         if (data->ie)
1470                 os_memcpy(pos, data->ie, data->ie_len);
1471
1472         tmp = os_realloc(res->res,
1473                          (res->num + 1) * sizeof(struct wpa_scan_res *));
1474         if (tmp == NULL) {
1475                 os_free(r);
1476                 return;
1477         }
1478         tmp[res->num++] = r;
1479         res->res = tmp;
1480 }
1481
1482
1483 /**
1484  * wpa_driver_wext_get_scan_results - Fetch the latest scan results
1485  * @priv: Pointer to private wext data from wpa_driver_wext_init()
1486  * Returns: Scan results on success, -1 on failure
1487  */
1488 struct wpa_scan_results * wpa_driver_wext_get_scan_results(void *priv)
1489 {
1490         struct wpa_driver_wext_data *drv = priv;
1491         size_t ap_num = 0, len;
1492         int first;
1493         u8 *res_buf;
1494         struct iw_event iwe_buf, *iwe = &iwe_buf;
1495         char *pos, *end, *custom;
1496         struct wpa_scan_results *res;
1497         struct wext_scan_data data;
1498
1499         res_buf = wpa_driver_wext_giwscan(drv, &len);
1500         if (res_buf == NULL)
1501                 return NULL;
1502
1503         ap_num = 0;
1504         first = 1;
1505
1506         res = os_zalloc(sizeof(*res));
1507         if (res == NULL) {
1508                 os_free(res_buf);
1509                 return NULL;
1510         }
1511
1512         pos = (char *) res_buf;
1513         end = (char *) res_buf + len;
1514         os_memset(&data, 0, sizeof(data));
1515
1516         while (pos + IW_EV_LCP_LEN <= end) {
1517                 /* Event data may be unaligned, so make a local, aligned copy
1518                  * before processing. */
1519                 os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
1520                 if (iwe->len <= IW_EV_LCP_LEN)
1521                         break;
1522
1523                 custom = pos + IW_EV_POINT_LEN;
1524                 if (wext_19_iw_point(drv, iwe->cmd)) {
1525                         /* WE-19 removed the pointer from struct iw_point */
1526                         char *dpos = (char *) &iwe_buf.u.data.length;
1527                         int dlen = dpos - (char *) &iwe_buf;
1528                         os_memcpy(dpos, pos + IW_EV_LCP_LEN,
1529                                   sizeof(struct iw_event) - dlen);
1530                 } else {
1531                         os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
1532                         custom += IW_EV_POINT_OFF;
1533                 }
1534
1535                 switch (iwe->cmd) {
1536                 case SIOCGIWAP:
1537                         if (!first)
1538                                 wpa_driver_wext_add_scan_entry(res, &data);
1539                         first = 0;
1540                         os_free(data.ie);
1541                         os_memset(&data, 0, sizeof(data));
1542                         os_memcpy(data.res.bssid,
1543                                   iwe->u.ap_addr.sa_data, ETH_ALEN);
1544                         break;
1545                 case SIOCGIWMODE:
1546                         wext_get_scan_mode(iwe, &data);
1547                         break;
1548                 case SIOCGIWESSID:
1549                         wext_get_scan_ssid(iwe, &data, custom, end);
1550                         break;
1551                 case SIOCGIWFREQ:
1552                         wext_get_scan_freq(iwe, &data);
1553                         break;
1554                 case IWEVQUAL:
1555                         wext_get_scan_qual(iwe, &data);
1556                         break;
1557                 case SIOCGIWENCODE:
1558                         wext_get_scan_encode(iwe, &data);
1559                         break;
1560                 case SIOCGIWRATE:
1561                         wext_get_scan_rate(iwe, &data, pos, end);
1562                         break;
1563                 case IWEVGENIE:
1564                         wext_get_scan_iwevgenie(iwe, &data, custom, end);
1565                         break;
1566                 case IWEVCUSTOM:
1567                         wext_get_scan_custom(iwe, &data, custom, end);
1568                         break;
1569                 }
1570
1571                 pos += iwe->len;
1572         }
1573         os_free(res_buf);
1574         res_buf = NULL;
1575         if (!first)
1576                 wpa_driver_wext_add_scan_entry(res, &data);
1577         os_free(data.ie);
1578
1579         wpa_printf(MSG_DEBUG, "Received %lu bytes of scan results (%lu BSSes)",
1580                    (unsigned long) len, (unsigned long) res->num);
1581
1582         return res;
1583 }
1584
1585
1586 static int wpa_driver_wext_get_range(void *priv)
1587 {
1588         struct wpa_driver_wext_data *drv = priv;
1589         struct iw_range *range;
1590         struct iwreq iwr;
1591         int minlen;
1592         size_t buflen;
1593
1594         /*
1595          * Use larger buffer than struct iw_range in order to allow the
1596          * structure to grow in the future.
1597          */
1598         buflen = sizeof(struct iw_range) + 500;
1599         range = os_zalloc(buflen);
1600         if (range == NULL)
1601                 return -1;
1602
1603         os_memset(&iwr, 0, sizeof(iwr));
1604         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1605         iwr.u.data.pointer = (caddr_t) range;
1606         iwr.u.data.length = buflen;
1607
1608         minlen = ((char *) &range->enc_capa) - (char *) range +
1609                 sizeof(range->enc_capa);
1610
1611         if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1612                 perror("ioctl[SIOCGIWRANGE]");
1613                 os_free(range);
1614                 return -1;
1615         } else if (iwr.u.data.length >= minlen &&
1616                    range->we_version_compiled >= 18) {
1617                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1618                            "WE(source)=%d enc_capa=0x%x",
1619                            range->we_version_compiled,
1620                            range->we_version_source,
1621                            range->enc_capa);
1622                 drv->has_capability = 1;
1623                 drv->we_version_compiled = range->we_version_compiled;
1624                 if (range->enc_capa & IW_ENC_CAPA_WPA) {
1625                         drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1626                                 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1627                 }
1628                 if (range->enc_capa & IW_ENC_CAPA_WPA2) {
1629                         drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1630                                 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1631                 }
1632                 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1633                         WPA_DRIVER_CAPA_ENC_WEP104;
1634                 if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
1635                         drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1636                 if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
1637                         drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1638                 if (range->enc_capa & IW_ENC_CAPA_4WAY_HANDSHAKE)
1639                         drv->capa.flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE;
1640                 drv->capa.max_scan_ssids = 1;
1641
1642                 wpa_printf(MSG_DEBUG, "  capabilities: key_mgmt 0x%x enc 0x%x "
1643                            "flags 0x%x",
1644                            drv->capa.key_mgmt, drv->capa.enc, drv->capa.flags);
1645         } else {
1646                 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: too old (short) data - "
1647                            "assuming WPA is not supported");
1648         }
1649
1650         os_free(range);
1651         return 0;
1652 }
1653
1654
1655 static int wpa_driver_wext_set_wpa(void *priv, int enabled)
1656 {
1657         struct wpa_driver_wext_data *drv = priv;
1658         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1659
1660         return wpa_driver_wext_set_auth_param(drv, IW_AUTH_WPA_ENABLED,
1661                                               enabled);
1662 }
1663
1664
1665 static int wpa_driver_wext_set_psk(struct wpa_driver_wext_data *drv,
1666                                    const u8 *psk)
1667 {
1668         struct iw_encode_ext *ext;
1669         struct iwreq iwr;
1670         int ret;
1671
1672         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1673
1674         if (!(drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
1675                 return 0;
1676
1677         if (!psk)
1678                 return 0;
1679
1680         os_memset(&iwr, 0, sizeof(iwr));
1681         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1682
1683         ext = os_zalloc(sizeof(*ext) + PMK_LEN);
1684         if (ext == NULL)
1685                 return -1;
1686
1687         iwr.u.encoding.pointer = (caddr_t) ext;
1688         iwr.u.encoding.length = sizeof(*ext) + PMK_LEN;
1689         ext->key_len = PMK_LEN;
1690         os_memcpy(&ext->key, psk, ext->key_len);
1691         ext->alg = IW_ENCODE_ALG_PMK;
1692
1693         ret = ioctl(drv->ioctl_sock, SIOCSIWENCODEEXT, &iwr);
1694         if (ret < 0)
1695                 perror("ioctl[SIOCSIWENCODEEXT] PMK");
1696         os_free(ext);
1697
1698         return ret;
1699 }
1700
1701
1702 static int wpa_driver_wext_set_key_ext(void *priv, wpa_alg alg,
1703                                        const u8 *addr, int key_idx,
1704                                        int set_tx, const u8 *seq,
1705                                        size_t seq_len,
1706                                        const u8 *key, size_t key_len)
1707 {
1708         struct wpa_driver_wext_data *drv = priv;
1709         struct iwreq iwr;
1710         int ret = 0;
1711         struct iw_encode_ext *ext;
1712
1713         if (seq_len > IW_ENCODE_SEQ_MAX_SIZE) {
1714                 wpa_printf(MSG_DEBUG, "%s: Invalid seq_len %lu",
1715                            __FUNCTION__, (unsigned long) seq_len);
1716                 return -1;
1717         }
1718
1719         ext = os_zalloc(sizeof(*ext) + key_len);
1720         if (ext == NULL)
1721                 return -1;
1722         os_memset(&iwr, 0, sizeof(iwr));
1723         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1724         iwr.u.encoding.flags = key_idx + 1;
1725         iwr.u.encoding.flags |= IW_ENCODE_TEMP;
1726         if (alg == WPA_ALG_NONE)
1727                 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
1728         iwr.u.encoding.pointer = (caddr_t) ext;
1729         iwr.u.encoding.length = sizeof(*ext) + key_len;
1730
1731         if (addr == NULL ||
1732             os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1733                 ext->ext_flags |= IW_ENCODE_EXT_GROUP_KEY;
1734         if (set_tx)
1735                 ext->ext_flags |= IW_ENCODE_EXT_SET_TX_KEY;
1736
1737         ext->addr.sa_family = ARPHRD_ETHER;
1738         if (addr)
1739                 os_memcpy(ext->addr.sa_data, addr, ETH_ALEN);
1740         else
1741                 os_memset(ext->addr.sa_data, 0xff, ETH_ALEN);
1742         if (key && key_len) {
1743                 os_memcpy(ext + 1, key, key_len);
1744                 ext->key_len = key_len;
1745         }
1746         switch (alg) {
1747         case WPA_ALG_NONE:
1748                 ext->alg = IW_ENCODE_ALG_NONE;
1749                 break;
1750         case WPA_ALG_WEP:
1751                 ext->alg = IW_ENCODE_ALG_WEP;
1752                 break;
1753         case WPA_ALG_TKIP:
1754                 ext->alg = IW_ENCODE_ALG_TKIP;
1755                 break;
1756         case WPA_ALG_CCMP:
1757                 ext->alg = IW_ENCODE_ALG_CCMP;
1758                 break;
1759         case WPA_ALG_PMK:
1760                 ext->alg = IW_ENCODE_ALG_PMK;
1761                 break;
1762 #ifdef CONFIG_IEEE80211W
1763         case WPA_ALG_IGTK:
1764                 ext->alg = IW_ENCODE_ALG_AES_CMAC;
1765                 break;
1766 #endif /* CONFIG_IEEE80211W */
1767         default:
1768                 wpa_printf(MSG_DEBUG, "%s: Unknown algorithm %d",
1769                            __FUNCTION__, alg);
1770                 os_free(ext);
1771                 return -1;
1772         }
1773
1774         if (seq && seq_len) {
1775                 ext->ext_flags |= IW_ENCODE_EXT_RX_SEQ_VALID;
1776                 os_memcpy(ext->rx_seq, seq, seq_len);
1777         }
1778
1779         if (ioctl(drv->ioctl_sock, SIOCSIWENCODEEXT, &iwr) < 0) {
1780                 ret = errno == EOPNOTSUPP ? -2 : -1;
1781                 if (errno == ENODEV) {
1782                         /*
1783                          * ndiswrapper seems to be returning incorrect error
1784                          * code.. */
1785                         ret = -2;
1786                 }
1787
1788                 perror("ioctl[SIOCSIWENCODEEXT]");
1789         }
1790
1791         os_free(ext);
1792         return ret;
1793 }
1794
1795
1796 /**
1797  * wpa_driver_wext_set_key - Configure encryption key
1798  * @priv: Pointer to private wext data from wpa_driver_wext_init()
1799  * @priv: Private driver interface data
1800  * @alg: Encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP,
1801  *      %WPA_ALG_TKIP, %WPA_ALG_CCMP); %WPA_ALG_NONE clears the key.
1802  * @addr: Address of the peer STA or ff:ff:ff:ff:ff:ff for
1803  *      broadcast/default keys
1804  * @key_idx: key index (0..3), usually 0 for unicast keys
1805  * @set_tx: Configure this key as the default Tx key (only used when
1806  *      driver does not support separate unicast/individual key
1807  * @seq: Sequence number/packet number, seq_len octets, the next
1808  *      packet number to be used for in replay protection; configured
1809  *      for Rx keys (in most cases, this is only used with broadcast
1810  *      keys and set to zero for unicast keys)
1811  * @seq_len: Length of the seq, depends on the algorithm:
1812  *      TKIP: 6 octets, CCMP: 6 octets
1813  * @key: Key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key,
1814  *      8-byte Rx Mic Key
1815  * @key_len: Length of the key buffer in octets (WEP: 5 or 13,
1816  *      TKIP: 32, CCMP: 16)
1817  * Returns: 0 on success, -1 on failure
1818  *
1819  * This function uses SIOCSIWENCODEEXT by default, but tries to use
1820  * SIOCSIWENCODE if the extended ioctl fails when configuring a WEP key.
1821  */
1822 int wpa_driver_wext_set_key(void *priv, wpa_alg alg,
1823                             const u8 *addr, int key_idx,
1824                             int set_tx, const u8 *seq, size_t seq_len,
1825                             const u8 *key, size_t key_len)
1826 {
1827         struct wpa_driver_wext_data *drv = priv;
1828         struct iwreq iwr;
1829         int ret = 0;
1830
1831         wpa_printf(MSG_DEBUG, "%s: alg=%d key_idx=%d set_tx=%d seq_len=%lu "
1832                    "key_len=%lu",
1833                    __FUNCTION__, alg, key_idx, set_tx,
1834                    (unsigned long) seq_len, (unsigned long) key_len);
1835
1836         ret = wpa_driver_wext_set_key_ext(drv, alg, addr, key_idx, set_tx,
1837                                           seq, seq_len, key, key_len);
1838         if (ret == 0)
1839                 return 0;
1840
1841         if (ret == -2 &&
1842             (alg == WPA_ALG_NONE || alg == WPA_ALG_WEP)) {
1843                 wpa_printf(MSG_DEBUG, "Driver did not support "
1844                            "SIOCSIWENCODEEXT, trying SIOCSIWENCODE");
1845                 ret = 0;
1846         } else {
1847                 wpa_printf(MSG_DEBUG, "Driver did not support "
1848                            "SIOCSIWENCODEEXT");
1849                 return ret;
1850         }
1851
1852         os_memset(&iwr, 0, sizeof(iwr));
1853         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1854         iwr.u.encoding.flags = key_idx + 1;
1855         iwr.u.encoding.flags |= IW_ENCODE_TEMP;
1856         if (alg == WPA_ALG_NONE)
1857                 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
1858         iwr.u.encoding.pointer = (caddr_t) key;
1859         iwr.u.encoding.length = key_len;
1860
1861         if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
1862                 perror("ioctl[SIOCSIWENCODE]");
1863                 ret = -1;
1864         }
1865
1866         if (set_tx && alg != WPA_ALG_NONE) {
1867                 os_memset(&iwr, 0, sizeof(iwr));
1868                 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1869                 iwr.u.encoding.flags = key_idx + 1;
1870                 iwr.u.encoding.flags |= IW_ENCODE_TEMP;
1871                 iwr.u.encoding.pointer = (caddr_t) NULL;
1872                 iwr.u.encoding.length = 0;
1873                 if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
1874                         perror("ioctl[SIOCSIWENCODE] (set_tx)");
1875                         ret = -1;
1876                 }
1877         }
1878
1879         return ret;
1880 }
1881
1882
1883 static int wpa_driver_wext_set_countermeasures(void *priv,
1884                                                int enabled)
1885 {
1886         struct wpa_driver_wext_data *drv = priv;
1887         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1888         return wpa_driver_wext_set_auth_param(drv,
1889                                               IW_AUTH_TKIP_COUNTERMEASURES,
1890                                               enabled);
1891 }
1892
1893
1894 static int wpa_driver_wext_set_drop_unencrypted(void *priv,
1895                                                 int enabled)
1896 {
1897         struct wpa_driver_wext_data *drv = priv;
1898         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1899         drv->use_crypt = enabled;
1900         return wpa_driver_wext_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
1901                                               enabled);
1902 }
1903
1904
1905 static int wpa_driver_wext_mlme(struct wpa_driver_wext_data *drv,
1906                                 const u8 *addr, int cmd, int reason_code)
1907 {
1908         struct iwreq iwr;
1909         struct iw_mlme mlme;
1910         int ret = 0;
1911
1912         os_memset(&iwr, 0, sizeof(iwr));
1913         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1914         os_memset(&mlme, 0, sizeof(mlme));
1915         mlme.cmd = cmd;
1916         mlme.reason_code = reason_code;
1917         mlme.addr.sa_family = ARPHRD_ETHER;
1918         os_memcpy(mlme.addr.sa_data, addr, ETH_ALEN);
1919         iwr.u.data.pointer = (caddr_t) &mlme;
1920         iwr.u.data.length = sizeof(mlme);
1921
1922         if (ioctl(drv->ioctl_sock, SIOCSIWMLME, &iwr) < 0) {
1923                 perror("ioctl[SIOCSIWMLME]");
1924                 ret = -1;
1925         }
1926
1927         return ret;
1928 }
1929
1930
1931 static void wpa_driver_wext_disconnect(struct wpa_driver_wext_data *drv)
1932 {
1933         struct iwreq iwr;
1934         const u8 null_bssid[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
1935         u8 ssid[32];
1936         int i;
1937
1938         /*
1939          * Only force-disconnect when the card is in infrastructure mode,
1940          * otherwise the driver might interpret the cleared BSSID and random
1941          * SSID as an attempt to create a new ad-hoc network.
1942          */
1943         os_memset(&iwr, 0, sizeof(iwr));
1944         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1945         if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
1946                 perror("ioctl[SIOCGIWMODE]");
1947                 iwr.u.mode = IW_MODE_INFRA;
1948         }
1949
1950         if (iwr.u.mode == IW_MODE_INFRA) {
1951                 /*
1952                  * Clear the BSSID selection and set a random SSID to make sure
1953                  * the driver will not be trying to associate with something
1954                  * even if it does not understand SIOCSIWMLME commands (or
1955                  * tries to associate automatically after deauth/disassoc).
1956                  */
1957                 wpa_driver_wext_set_bssid(drv, null_bssid);
1958
1959                 for (i = 0; i < 32; i++)
1960                         ssid[i] = rand() & 0xFF;
1961                 wpa_driver_wext_set_ssid(drv, ssid, 32);
1962         }
1963 }
1964
1965
1966 static int wpa_driver_wext_deauthenticate(void *priv, const u8 *addr,
1967                                           int reason_code)
1968 {
1969         struct wpa_driver_wext_data *drv = priv;
1970         int ret;
1971         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1972         ret = wpa_driver_wext_mlme(drv, addr, IW_MLME_DEAUTH, reason_code);
1973         wpa_driver_wext_disconnect(drv);
1974         return ret;
1975 }
1976
1977
1978 static int wpa_driver_wext_disassociate(void *priv, const u8 *addr,
1979                                         int reason_code)
1980 {
1981         struct wpa_driver_wext_data *drv = priv;
1982         int ret;
1983         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1984         ret = wpa_driver_wext_mlme(drv, addr, IW_MLME_DISASSOC, reason_code);
1985         wpa_driver_wext_disconnect(drv);
1986         return ret;
1987 }
1988
1989
1990 static int wpa_driver_wext_set_gen_ie(void *priv, const u8 *ie,
1991                                       size_t ie_len)
1992 {
1993         struct wpa_driver_wext_data *drv = priv;
1994         struct iwreq iwr;
1995         int ret = 0;
1996
1997         os_memset(&iwr, 0, sizeof(iwr));
1998         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1999         iwr.u.data.pointer = (caddr_t) ie;
2000         iwr.u.data.length = ie_len;
2001
2002         if (ioctl(drv->ioctl_sock, SIOCSIWGENIE, &iwr) < 0) {
2003                 perror("ioctl[SIOCSIWGENIE]");
2004                 ret = -1;
2005         }
2006
2007         return ret;
2008 }
2009
2010
2011 int wpa_driver_wext_cipher2wext(int cipher)
2012 {
2013         switch (cipher) {
2014         case CIPHER_NONE:
2015                 return IW_AUTH_CIPHER_NONE;
2016         case CIPHER_WEP40:
2017                 return IW_AUTH_CIPHER_WEP40;
2018         case CIPHER_TKIP:
2019                 return IW_AUTH_CIPHER_TKIP;
2020         case CIPHER_CCMP:
2021                 return IW_AUTH_CIPHER_CCMP;
2022         case CIPHER_WEP104:
2023                 return IW_AUTH_CIPHER_WEP104;
2024         default:
2025                 return 0;
2026         }
2027 }
2028
2029
2030 int wpa_driver_wext_keymgmt2wext(int keymgmt)
2031 {
2032         switch (keymgmt) {
2033         case KEY_MGMT_802_1X:
2034         case KEY_MGMT_802_1X_NO_WPA:
2035                 return IW_AUTH_KEY_MGMT_802_1X;
2036         case KEY_MGMT_PSK:
2037                 return IW_AUTH_KEY_MGMT_PSK;
2038         default:
2039                 return 0;
2040         }
2041 }
2042
2043
2044 static int
2045 wpa_driver_wext_auth_alg_fallback(struct wpa_driver_wext_data *drv,
2046                                   struct wpa_driver_associate_params *params)
2047 {
2048         struct iwreq iwr;
2049         int ret = 0;
2050
2051         wpa_printf(MSG_DEBUG, "WEXT: Driver did not support "
2052                    "SIOCSIWAUTH for AUTH_ALG, trying SIOCSIWENCODE");
2053
2054         os_memset(&iwr, 0, sizeof(iwr));
2055         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2056         /* Just changing mode, not actual keys */
2057         iwr.u.encoding.flags = 0;
2058         iwr.u.encoding.pointer = (caddr_t) NULL;
2059         iwr.u.encoding.length = 0;
2060
2061         /*
2062          * Note: IW_ENCODE_{OPEN,RESTRICTED} can be interpreted to mean two
2063          * different things. Here they are used to indicate Open System vs.
2064          * Shared Key authentication algorithm. However, some drivers may use
2065          * them to select between open/restricted WEP encrypted (open = allow
2066          * both unencrypted and encrypted frames; restricted = only allow
2067          * encrypted frames).
2068          */
2069
2070         if (!drv->use_crypt) {
2071                 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
2072         } else {
2073                 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
2074                         iwr.u.encoding.flags |= IW_ENCODE_OPEN;
2075                 if (params->auth_alg & AUTH_ALG_SHARED_KEY)
2076                         iwr.u.encoding.flags |= IW_ENCODE_RESTRICTED;
2077         }
2078
2079         if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
2080                 perror("ioctl[SIOCSIWENCODE]");
2081                 ret = -1;
2082         }
2083
2084         return ret;
2085 }
2086
2087
2088 int wpa_driver_wext_associate(void *priv,
2089                               struct wpa_driver_associate_params *params)
2090 {
2091         struct wpa_driver_wext_data *drv = priv;
2092         int ret = 0;
2093         int allow_unencrypted_eapol;
2094         int value;
2095
2096         wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
2097
2098         /*
2099          * If the driver did not support SIOCSIWAUTH, fallback to
2100          * SIOCSIWENCODE here.
2101          */
2102         if (drv->auth_alg_fallback &&
2103             wpa_driver_wext_auth_alg_fallback(drv, params) < 0)
2104                 ret = -1;
2105
2106         if (!params->bssid &&
2107             wpa_driver_wext_set_bssid(drv, NULL) < 0)
2108                 ret = -1;
2109
2110         /* TODO: should consider getting wpa version and cipher/key_mgmt suites
2111          * from configuration, not from here, where only the selected suite is
2112          * available */
2113         if (wpa_driver_wext_set_gen_ie(drv, params->wpa_ie, params->wpa_ie_len)
2114             < 0)
2115                 ret = -1;
2116         if (params->wpa_ie == NULL || params->wpa_ie_len == 0)
2117                 value = IW_AUTH_WPA_VERSION_DISABLED;
2118         else if (params->wpa_ie[0] == WLAN_EID_RSN)
2119                 value = IW_AUTH_WPA_VERSION_WPA2;
2120         else
2121                 value = IW_AUTH_WPA_VERSION_WPA;
2122         if (wpa_driver_wext_set_auth_param(drv,
2123                                            IW_AUTH_WPA_VERSION, value) < 0)
2124                 ret = -1;
2125         value = wpa_driver_wext_cipher2wext(params->pairwise_suite);
2126         if (wpa_driver_wext_set_auth_param(drv,
2127                                            IW_AUTH_CIPHER_PAIRWISE, value) < 0)
2128                 ret = -1;
2129         value = wpa_driver_wext_cipher2wext(params->group_suite);
2130         if (wpa_driver_wext_set_auth_param(drv,
2131                                            IW_AUTH_CIPHER_GROUP, value) < 0)
2132                 ret = -1;
2133         value = wpa_driver_wext_keymgmt2wext(params->key_mgmt_suite);
2134         if (wpa_driver_wext_set_auth_param(drv,
2135                                            IW_AUTH_KEY_MGMT, value) < 0)
2136                 ret = -1;
2137         value = params->key_mgmt_suite != KEY_MGMT_NONE ||
2138                 params->pairwise_suite != CIPHER_NONE ||
2139                 params->group_suite != CIPHER_NONE ||
2140                 params->wpa_ie_len;
2141         if (wpa_driver_wext_set_auth_param(drv,
2142                                            IW_AUTH_PRIVACY_INVOKED, value) < 0)
2143                 ret = -1;
2144
2145         /* Allow unencrypted EAPOL messages even if pairwise keys are set when
2146          * not using WPA. IEEE 802.1X specifies that these frames are not
2147          * encrypted, but WPA encrypts them when pairwise keys are in use. */
2148         if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
2149             params->key_mgmt_suite == KEY_MGMT_PSK)
2150                 allow_unencrypted_eapol = 0;
2151         else
2152                 allow_unencrypted_eapol = 1;
2153
2154         if (wpa_driver_wext_set_psk(drv, params->psk) < 0)
2155                 ret = -1;
2156         if (wpa_driver_wext_set_auth_param(drv,
2157                                            IW_AUTH_RX_UNENCRYPTED_EAPOL,
2158                                            allow_unencrypted_eapol) < 0)
2159                 ret = -1;
2160 #ifdef CONFIG_IEEE80211W
2161         switch (params->mgmt_frame_protection) {
2162         case NO_MGMT_FRAME_PROTECTION:
2163                 value = IW_AUTH_MFP_DISABLED;
2164                 break;
2165         case MGMT_FRAME_PROTECTION_OPTIONAL:
2166                 value = IW_AUTH_MFP_OPTIONAL;
2167                 break;
2168         case MGMT_FRAME_PROTECTION_REQUIRED:
2169                 value = IW_AUTH_MFP_REQUIRED;
2170                 break;
2171         };
2172         if (wpa_driver_wext_set_auth_param(drv, IW_AUTH_MFP, value) < 0)
2173                 ret = -1;
2174 #endif /* CONFIG_IEEE80211W */
2175         if (params->freq && wpa_driver_wext_set_freq(drv, params->freq) < 0)
2176                 ret = -1;
2177         if (wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
2178                 ret = -1;
2179         if (params->bssid &&
2180             wpa_driver_wext_set_bssid(drv, params->bssid) < 0)
2181                 ret = -1;
2182
2183         return ret;
2184 }
2185
2186
2187 static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg)
2188 {
2189         struct wpa_driver_wext_data *drv = priv;
2190         int algs = 0, res;
2191
2192         if (auth_alg & AUTH_ALG_OPEN_SYSTEM)
2193                 algs |= IW_AUTH_ALG_OPEN_SYSTEM;
2194         if (auth_alg & AUTH_ALG_SHARED_KEY)
2195                 algs |= IW_AUTH_ALG_SHARED_KEY;
2196         if (auth_alg & AUTH_ALG_LEAP)
2197                 algs |= IW_AUTH_ALG_LEAP;
2198         if (algs == 0) {
2199                 /* at least one algorithm should be set */
2200                 algs = IW_AUTH_ALG_OPEN_SYSTEM;
2201         }
2202
2203         res = wpa_driver_wext_set_auth_param(drv, IW_AUTH_80211_AUTH_ALG,
2204                                              algs);
2205         drv->auth_alg_fallback = res == -2;
2206         return res;
2207 }
2208
2209
2210 /**
2211  * wpa_driver_wext_set_mode - Set wireless mode (infra/adhoc), SIOCSIWMODE
2212  * @priv: Pointer to private wext data from wpa_driver_wext_init()
2213  * @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
2214  * Returns: 0 on success, -1 on failure
2215  */
2216 int wpa_driver_wext_set_mode(void *priv, int mode)
2217 {
2218         struct wpa_driver_wext_data *drv = priv;
2219         struct iwreq iwr;
2220         int ret = -1, flags;
2221         unsigned int new_mode = mode ? IW_MODE_ADHOC : IW_MODE_INFRA;
2222
2223         os_memset(&iwr, 0, sizeof(iwr));
2224         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2225         iwr.u.mode = new_mode;
2226         if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) == 0) {
2227                 ret = 0;
2228                 goto done;
2229         }
2230
2231         if (errno != EBUSY) {
2232                 perror("ioctl[SIOCSIWMODE]");
2233                 goto done;
2234         }
2235
2236         /* mac80211 doesn't allow mode changes while the device is up, so if
2237          * the device isn't in the mode we're about to change to, take device
2238          * down, try to set the mode again, and bring it back up.
2239          */
2240         if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
2241                 perror("ioctl[SIOCGIWMODE]");
2242                 goto done;
2243         }
2244
2245         if (iwr.u.mode == new_mode) {
2246                 ret = 0;
2247                 goto done;
2248         }
2249
2250         if (wpa_driver_wext_get_ifflags(drv, &flags) == 0) {
2251                 (void) wpa_driver_wext_set_ifflags(drv, flags & ~IFF_UP);
2252
2253                 /* Try to set the mode again while the interface is down */
2254                 iwr.u.mode = new_mode;
2255                 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0)
2256                         perror("ioctl[SIOCSIWMODE]");
2257                 else
2258                         ret = 0;
2259
2260                 /* Ignore return value of get_ifflags to ensure that the device
2261                  * is always up like it was before this function was called.
2262                  */
2263                 (void) wpa_driver_wext_get_ifflags(drv, &flags);
2264                 (void) wpa_driver_wext_set_ifflags(drv, flags | IFF_UP);
2265         }
2266
2267 done:
2268         return ret;
2269 }
2270
2271
2272 static int wpa_driver_wext_pmksa(struct wpa_driver_wext_data *drv,
2273                                  u32 cmd, const u8 *bssid, const u8 *pmkid)
2274 {
2275         struct iwreq iwr;
2276         struct iw_pmksa pmksa;
2277         int ret = 0;
2278
2279         os_memset(&iwr, 0, sizeof(iwr));
2280         os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2281         os_memset(&pmksa, 0, sizeof(pmksa));
2282         pmksa.cmd = cmd;
2283         pmksa.bssid.sa_family = ARPHRD_ETHER;
2284         if (bssid)
2285                 os_memcpy(pmksa.bssid.sa_data, bssid, ETH_ALEN);
2286         if (pmkid)
2287                 os_memcpy(pmksa.pmkid, pmkid, IW_PMKID_LEN);
2288         iwr.u.data.pointer = (caddr_t) &pmksa;
2289         iwr.u.data.length = sizeof(pmksa);
2290
2291         if (ioctl(drv->ioctl_sock, SIOCSIWPMKSA, &iwr) < 0) {
2292                 if (errno != EOPNOTSUPP)
2293                         perror("ioctl[SIOCSIWPMKSA]");
2294                 ret = -1;
2295         }
2296
2297         return ret;
2298 }
2299
2300
2301 static int wpa_driver_wext_add_pmkid(void *priv, const u8 *bssid,
2302                                      const u8 *pmkid)
2303 {
2304         struct wpa_driver_wext_data *drv = priv;
2305         return wpa_driver_wext_pmksa(drv, IW_PMKSA_ADD, bssid, pmkid);
2306 }
2307
2308
2309 static int wpa_driver_wext_remove_pmkid(void *priv, const u8 *bssid,
2310                                         const u8 *pmkid)
2311 {
2312         struct wpa_driver_wext_data *drv = priv;
2313         return wpa_driver_wext_pmksa(drv, IW_PMKSA_REMOVE, bssid, pmkid);
2314 }
2315
2316
2317 static int wpa_driver_wext_flush_pmkid(void *priv)
2318 {
2319         struct wpa_driver_wext_data *drv = priv;
2320         return wpa_driver_wext_pmksa(drv, IW_PMKSA_FLUSH, NULL, NULL);
2321 }
2322
2323
2324 int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa)
2325 {
2326         struct wpa_driver_wext_data *drv = priv;
2327         if (!drv->has_capability)
2328                 return -1;
2329         os_memcpy(capa, &drv->capa, sizeof(*capa));
2330         return 0;
2331 }
2332
2333
2334 int wpa_driver_wext_alternative_ifindex(struct wpa_driver_wext_data *drv,
2335                                         const char *ifname)
2336 {
2337         if (ifname == NULL) {
2338                 drv->ifindex2 = -1;
2339                 return 0;
2340         }
2341
2342         drv->ifindex2 = if_nametoindex(ifname);
2343         if (drv->ifindex2 <= 0)
2344                 return -1;
2345
2346         wpa_printf(MSG_DEBUG, "Added alternative ifindex %d (%s) for "
2347                    "wireless events", drv->ifindex2, ifname);
2348
2349         return 0;
2350 }
2351
2352
2353 int wpa_driver_wext_set_operstate(void *priv, int state)
2354 {
2355         struct wpa_driver_wext_data *drv = priv;
2356
2357         wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
2358                    __func__, drv->operstate, state, state ? "UP" : "DORMANT");
2359         drv->operstate = state;
2360         return wpa_driver_wext_send_oper_ifla(
2361                 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
2362 }
2363
2364
2365 int wpa_driver_wext_get_version(struct wpa_driver_wext_data *drv)
2366 {
2367         return drv->we_version_compiled;
2368 }
2369
2370
2371 const struct wpa_driver_ops wpa_driver_wext_ops = {
2372         .name = "wext",
2373         .desc = "Linux wireless extensions (generic)",
2374         .get_bssid = wpa_driver_wext_get_bssid,
2375         .get_ssid = wpa_driver_wext_get_ssid,
2376         .set_wpa = wpa_driver_wext_set_wpa,
2377         .set_key = wpa_driver_wext_set_key,
2378         .set_countermeasures = wpa_driver_wext_set_countermeasures,
2379         .set_drop_unencrypted = wpa_driver_wext_set_drop_unencrypted,
2380         .scan = wpa_driver_wext_scan,
2381         .get_scan_results2 = wpa_driver_wext_get_scan_results,
2382         .deauthenticate = wpa_driver_wext_deauthenticate,
2383         .disassociate = wpa_driver_wext_disassociate,
2384         .set_mode = wpa_driver_wext_set_mode,
2385         .associate = wpa_driver_wext_associate,
2386         .set_auth_alg = wpa_driver_wext_set_auth_alg,
2387         .init = wpa_driver_wext_init,
2388         .deinit = wpa_driver_wext_deinit,
2389         .add_pmkid = wpa_driver_wext_add_pmkid,
2390         .remove_pmkid = wpa_driver_wext_remove_pmkid,
2391         .flush_pmkid = wpa_driver_wext_flush_pmkid,
2392         .get_capa = wpa_driver_wext_get_capa,
2393         .set_operstate = wpa_driver_wext_set_operstate,
2394 };