target/linux/package/wlcompat/wlcompat.c

   1 /*
   2  * wlcompat.c
   3  *
   4  * Copyright (C) 2005 Mike Baker,
   5  *                    Felix Fietkau <openwrt@nbd.name>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * $Id$
  22  */
  23
  24
  25 #include <linux/config.h>
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/if_arp.h>
  29 #include <asm/uaccess.h>
  30 #include <linux/wireless.h>
  31
  32 #include <net/iw_handler.h>
  33 #include <wlioctl.h>
  34
  35 static struct net_device *dev;
  36 static unsigned short bss_force;
  37 static struct iw_statistics wstats;
  38 char buf[WLC_IOCTL_MAXLEN];
  39
  40 /* The frequency of each channel in MHz */
  41 const long channel_frequency[] = {
  42         2412, 2417, 2422, 2427, 2432, 2437, 2442,
  43         2447, 2452, 2457, 2462, 2467, 2472, 2484
  44 };
  45 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
  46
  47 typedef struct internal_wsec_key {
  48         uint8 index;            // 0x00
  49         uint8 unknown_1;        // 0x01
  50         uint8 type;             // 0x02
  51         uint8 unknown_2[7];     // 0x03
  52         uint8 len;              // 0x0a
  53         uint8 pad[3];
  54         char data[32];          // 0x0e
  55 } wkey;
  56
  57
  58 static int wlcompat_private_ioctl(struct net_device *dev,
  59                          struct iw_request_info *info,
  60                          union iwreq_data *wrqu,
  61                          char *extra);
  62 #ifdef DEBUG
  63 void print_buffer(int len, unsigned char *buf);
  64 #endif
  65
  66 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
  67 {
  68         mm_segment_t old_fs = get_fs();
  69         struct ifreq ifr;
  70         int ret;
  71         wl_ioctl_t ioc;
  72         ioc.cmd = cmd;
  73         ioc.buf = buf;
  74         ioc.len = len;
  75         strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
  76         ifr.ifr_data = (caddr_t) &ioc;
  77         set_fs(KERNEL_DS);
  78         ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
  79         set_fs (old_fs);
  80         return ret;
  81 }
  82
  83 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
  84 {
  85         char buf[128];
  86         int buf_len;
  87         int ret;
  88
  89         /* check for overflow */
  90         if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
  91                 return -1;
  92
  93         strcpy(buf, var);
  94         buf_len += 1;
  95
  96         /* append int value onto the end of the name string */
  97         memcpy(&(buf[buf_len]), val, len);
  98         buf_len += len;
  99
 100         ret = wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
 101         return ret;
 102 }
 103
 104 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
 105 {
 106         char buf[128];
 107         int buf_len;
 108         int ret;
 109
 110         /* check for overflow */
 111         if ((buf_len = strlen(var)) + 1 > sizeof(buf) || len > sizeof(buf))
 112                 return -1;
 113
 114         strcpy(buf, var);
 115         if (ret = wl_ioctl(dev, WLC_GET_VAR, buf, buf_len + len))
 116                 return ret;
 117
 118         memcpy(val, buf, len);
 119         return 0;
 120 }
 121
 122 int get_primary_key(struct net_device *dev)
 123 {
 124         int key, val;
 125
 126         for (key = val = 0; (key < 4) && (val == 0); key++) {
 127                 val = key;
 128                 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
 129                         return -EINVAL;
 130         }
 131         return key;
 132 }
 133
 134
 135 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
 136                                     char *extra)
 137 {
 138         int i, k;
 139         struct iw_range *range;
 140
 141         range = (struct iw_range *) extra;
 142         bzero(extra, sizeof(struct iw_range));
 143
 144         range->we_version_compiled = WIRELESS_EXT;
 145         range->we_version_source = WIRELESS_EXT;
 146
 147         range->min_nwid = range->max_nwid = 0;
 148
 149         range->num_channels = NUM_CHANNELS;
 150         k = 0;
 151         for (i = 0; i < NUM_CHANNELS; i++) {
 152                 range->freq[k].i = i + 1;
 153                 range->freq[k].m = channel_frequency[i] * 100000;
 154                 range->freq[k].e = 1;
 155                 k++;
 156                 if (k >= IW_MAX_FREQUENCIES)
 157                         break;
 158         }
 159         range->num_frequency = k;
 160         range->sensitivity = 3;
 161
 162         /* nbd: don't know what this means, but other drivers set it this way */
 163         range->pmp_flags = IW_POWER_PERIOD;
 164         range->pmt_flags = IW_POWER_TIMEOUT;
 165         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
 166
 167         range->min_pmp = 0;
 168         range->max_pmp = 65535000;
 169         range->min_pmt = 0;
 170         range->max_pmt = 65535 * 1000;
 171
 172         range->max_qual.qual = 0;
 173         range->max_qual.level = 0;
 174         range->max_qual.noise = 0;
 175
 176         range->min_rts = 0;
 177         if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
 178                 range->max_rts = 2347;
 179
 180         range->min_frag = 256;
 181
 182         if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
 183                 range->max_frag = 2346;
 184
 185         range->txpower_capa = IW_TXPOW_DBM;
 186
 187         return 0;
 188 }
 189
 190
 191 static int wlcompat_set_scan(struct net_device *dev,
 192                          struct iw_request_info *info,
 193                          union iwreq_data *wrqu,
 194                          char *extra)
 195 {
 196         int ap = 0, oldap = 0;
 197         wl_scan_params_t params;
 198
 199         memset(&params, 0, sizeof(params));
 200
 201         /* use defaults (same parameters as wl scan) */
 202         memset(&params.bssid, 0xff, sizeof(params.bssid));
 203         params.bss_type = DOT11_BSSTYPE_ANY;
 204         params.scan_type = -1;
 205         params.nprobes = -1;
 206         params.active_time = -1;
 207         params.passive_time = -1;
 208         params.home_time = -1;
 209
 210         /* can only scan in STA mode */
 211         wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
 212         if (oldap > 0)
 213                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 214
 215         if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
 216                 return -EINVAL;
 217
 218         if (oldap > 0)
 219                 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
 220
 221         return 0;
 222 }
 223
 224
 225 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
 226 {
 227         wl_bss_info_t *bss_info = (wl_bss_info_t *) buf;
 228         get_pktcnt_t pkt;
 229         unsigned int rssi, noise, ap;
 230
 231         memset(&wstats, 0, sizeof(wstats));
 232         memset(&pkt, 0, sizeof(pkt));
 233         memset(buf, 0, sizeof(buf));
 234         bss_info->version = 0x2000;
 235         wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
 236         wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
 237
 238         rssi = 0;
 239         if ((wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0) || ap) {
 240                 if (wl_ioctl(dev, WLC_GET_PHY_NOISE, &noise, sizeof(noise)) < 0)
 241                         noise = 0;
 242         } else {
 243                 // somehow the structure doesn't fit here
 244                 rssi = buf[82];
 245                 noise = buf[84];
 246         }
 247         rssi = (rssi == 0 ? 1 : rssi);
 248         wstats.qual.updated = 0x10;
 249         if (rssi <= 1)
 250                 wstats.qual.updated |= 0x20;
 251         if (noise <= 1)
 252                 wstats.qual.updated |= 0x40;
 253
 254         if ((wstats.qual.updated & 0x60) == 0x60)
 255                 return NULL;
 256
 257         wstats.qual.level = rssi;
 258         wstats.qual.noise = noise;
 259         wstats.discard.misc = pkt.rx_bad_pkt;
 260         wstats.discard.retries = pkt.tx_bad_pkt;
 261
 262         return &wstats;
 263 }
 264
 265 static int wlcompat_get_scan(struct net_device *dev,
 266                          struct iw_request_info *info,
 267                          union iwreq_data *wrqu,
 268                          char *extra)
 269 {
 270         wl_scan_results_t *results = (wl_scan_results_t *) buf;
 271         wl_bss_info_t *bss_info;
 272         char *info_ptr;
 273         char *current_ev = extra;
 274         char *current_val;
 275         char *end_buf = extra + IW_SCAN_MAX_DATA;
 276         struct iw_event iwe;
 277         int i, j;
 278         int rssi, noise;
 279
 280         results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
 281
 282         if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
 283                 return -EAGAIN;
 284
 285         bss_info = &(results->bss_info[0]);
 286         info_ptr = (char *) bss_info;
 287         for (i = 0; i < results->count; i++) {
 288
 289                 /* send the cell address (must be sent first) */
 290                 iwe.cmd = SIOCGIWAP;
 291                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 292                 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
 293                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
 294
 295                 /* send the ESSID */
 296                 iwe.cmd = SIOCGIWESSID;
 297                 iwe.u.data.length = bss_info->SSID_len;
 298                 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
 299                         iwe.u.data.length = IW_ESSID_MAX_SIZE;
 300                 iwe.u.data.flags = 1;
 301                 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
 302
 303                 /* send frequency/channel info */
 304                 iwe.cmd = SIOCGIWFREQ;
 305                 iwe.u.freq.e = 0;
 306                 iwe.u.freq.m = bss_info->channel;
 307                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 308
 309                 /* add quality statistics */
 310                 iwe.cmd = IWEVQUAL;
 311                 iwe.u.qual.qual = 0;
 312                 iwe.u.qual.level = bss_info->RSSI;
 313                 iwe.u.qual.noise = bss_info->phy_noise;
 314                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
 315
 316                 /* send rate information */
 317                 iwe.cmd = SIOCGIWRATE;
 318                 current_val = current_ev + IW_EV_LCP_LEN;
 319                 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 320
 321                 for(j = 0 ; j < bss_info->rateset.count ; j++) {
 322                         iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
 323                         current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
 324                 }
 325                 if((current_val - current_ev) > IW_EV_LCP_LEN)
 326                         current_ev = current_val;
 327
 328                 info_ptr += sizeof(wl_bss_info_t);
 329                 if (bss_info->ie_length % 4)
 330                         info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
 331                 else
 332                         info_ptr += bss_info->ie_length;
 333                 bss_info = (wl_bss_info_t *) info_ptr;
 334         }
 335
 336         wrqu->data.length = (current_ev - extra);
 337         wrqu->data.flags = 0;
 338
 339         return 0;
 340 }
 341
 342 static int wlcompat_ioctl(struct net_device *dev,
 343                          struct iw_request_info *info,
 344                          union iwreq_data *wrqu,
 345                          char *extra)
 346 {
 347         switch (info->cmd) {
 348                 case SIOCGIWNAME:
 349                         strcpy(wrqu->name, "IEEE 802.11-DS");
 350                         break;
 351                 case SIOCGIWFREQ:
 352                 {
 353                         channel_info_t ci;
 354
 355                         if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
 356                                 return -EINVAL;
 357
 358                         wrqu->freq.m = ci.target_channel;
 359                         wrqu->freq.e = 0;
 360                         break;
 361                 }
 362                 case SIOCSIWFREQ:
 363                 {
 364                         if (wrqu->freq.m == -1) {
 365                                 wrqu->freq.m = 0;
 366                                 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 367                                         return -EINVAL;
 368                         } else {
 369                                 if (wrqu->freq.e == 1) {
 370                                         int channel = 0;
 371                                         int f = wrqu->freq.m / 100000;
 372                                         while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
 373                                                 channel++;
 374
 375                                         if (channel == NUM_CHANNELS) // channel not found
 376                                                 return -EINVAL;
 377
 378                                         wrqu->freq.e = 0;
 379                                         wrqu->freq.m = channel + 1;
 380                                 }
 381                                 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
 382                                         if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 383                                                 return -EINVAL;
 384                                 } else {
 385                                         return -EINVAL;
 386                                 }
 387                         }
 388                         break;
 389                 }
 390                 case SIOCSIWAP:
 391                 {
 392                         int ap = 0;
 393                         int infra = 0;
 394                         rw_reg_t reg;
 395
 396                         memset(&reg, 0, sizeof(reg));
 397
 398                         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 399                                 return -EINVAL;
 400
 401                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 402                                 return -EINVAL;
 403
 404                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 405                                 return -EINVAL;
 406
 407                         if (!infra) {
 408                                 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
 409
 410                                 reg.size = 4;
 411                                 reg.byteoff = 0x184;
 412                                 reg.val = bss_force << 16 | bss_force;
 413                                 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
 414
 415                                 reg.byteoff = 0x180;
 416                                 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 417                                 reg.val = bss_force << 16;
 418                                 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
 419                         }
 420
 421                         if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
 422                                 return -EINVAL;
 423
 424                         break;
 425                 }
 426                 case SIOCGIWAP:
 427                 {
 428 #ifdef DEBUG
 429                         rw_reg_t reg;
 430                         memset(&reg, 0, sizeof(reg));
 431
 432                         reg.size = 4;
 433                         reg.byteoff = 0x184;
 434                         wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 435                         printk("bss time = 0x%08x", reg.val);
 436
 437                         reg.byteoff = 0x180;
 438                         wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 439                         printk("%08x\n", reg.val);
 440 #endif
 441
 442                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 443                         if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 444                                 return -EINVAL;
 445                         break;
 446                 }
 447                 case SIOCGIWESSID:
 448                 {
 449                         wlc_ssid_t ssid;
 450
 451                         if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
 452                                 return -EINVAL;
 453
 454                         wrqu->essid.flags = wrqu->data.flags = 1;
 455                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 456                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 457                         break;
 458                 }
 459                 case SIOCSIWESSID:
 460                 {
 461                         wlc_ssid_t ssid;
 462                         memset(&ssid, 0, sizeof(ssid));
 463                         ssid.SSID_len = strlen(extra);
 464                         if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
 465                                 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
 466                         memcpy(ssid.SSID, extra, ssid.SSID_len);
 467                         if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
 468                                 return -EINVAL;
 469                         break;
 470                 }
 471                 case SIOCGIWRTS:
 472                 {
 473                         if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 474                                 return -EINVAL;
 475                         break;
 476                 }
 477                 case SIOCSIWRTS:
 478                 {
 479                         if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 480                                 return -EINVAL;
 481                         break;
 482                 }
 483                 case SIOCGIWFRAG:
 484                 {
 485                         if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 486                                 return -EINVAL;
 487                         break;
 488                 }
 489                 case SIOCSIWFRAG:
 490                 {
 491                         if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 492                                 return -EINVAL;
 493                         break;
 494                 }
 495                 case SIOCGIWTXPOW:
 496                 {
 497                         int radio;
 498
 499                         wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
 500
 501                         if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 502                                 return -EINVAL;
 503
 504                         wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
 505                         wrqu->txpower.value /= 4;
 506
 507                         wrqu->txpower.fixed = 0;
 508                         wrqu->txpower.disabled = radio;
 509                         wrqu->txpower.flags = IW_TXPOW_DBM;
 510                         break;
 511                 }
 512                 case SIOCSIWTXPOW:
 513                 {
 514                         /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
 515                         int radio = wrqu->txpower.disabled;
 516
 517                         wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
 518
 519                         if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
 520                                 int value;
 521
 522                                 if (wl_get_val(dev, "qtxpower", &value, sizeof(int)) < 0)
 523                                         return -EINVAL;
 524
 525                                 value &= WL_TXPWR_OVERRIDE;
 526                                 wrqu->txpower.value *= 4;
 527                                 wrqu->txpower.value |= value;
 528
 529                                 if (wrqu->txpower.flags != IW_TXPOW_DBM)
 530                                         return -EINVAL;
 531
 532                                 if (wrqu->txpower.value > 0)
 533                                         if (wl_set_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 534                                                 return -EINVAL;
 535                         }
 536                         break;
 537                 }
 538                 case SIOCSIWENCODE:
 539                 {
 540                         int val = 0, wep = 1, wrestrict = 1;
 541                         int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
 542
 543                         if (index < 0)
 544                                 index = get_primary_key(dev);
 545
 546                         if (wrqu->data.flags & IW_ENCODE_DISABLED) {
 547                                 wep = 0;
 548                                 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 549                                         return -EINVAL;
 550                                 return 0;
 551                         }
 552
 553                         if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 554                                 return -EINVAL;
 555
 556                         if (wrqu->data.flags & IW_ENCODE_OPEN)
 557                                 wrestrict = 0;
 558
 559                         if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
 560                                 wl_wsec_key_t key;
 561                                 memset(&key, 0, sizeof(key));
 562
 563                                 key.flags = WL_PRIMARY_KEY;
 564                                 key.len = wrqu->data.length;
 565                                 key.index = index;
 566                                 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
 567
 568                                 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
 569                                         return -EINVAL;
 570                         }
 571
 572                         if (index >= 0)
 573                                 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
 574
 575                         if (wrestrict >= 0)
 576                                 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
 577
 578                         break;
 579                 }
 580                 case SIOCGIWENCODE:
 581                 {
 582                         int val;
 583
 584                         if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
 585                                 return -EINVAL;
 586
 587
 588                         if (val > 0) {
 589                                 int key = get_primary_key(dev);
 590
 591                                 wrqu->data.flags = IW_ENCODE_ENABLED;
 592                                 if (key-- > 0) {
 593                                         int *info_addr;
 594                                         wkey *wep_key;
 595
 596                                         info_addr = (int *) dev->priv;
 597                                         wep_key = (wkey *) ((*info_addr) + 0x2752 + (key * 0x110));
 598
 599                                         wrqu->data.flags |= key + 1;
 600                                         wrqu->data.length = wep_key->len;
 601
 602                                         memset(extra, 0, 16);
 603                                         memcpy(extra, wep_key->data, 16);
 604                                 } else {
 605                                         wrqu->data.flags |= IW_ENCODE_NOKEY;
 606                                 }
 607                         } else {
 608                                 wrqu->data.flags = IW_ENCODE_DISABLED;
 609                         }
 610
 611                         break;
 612                 }
 613                 case SIOCGIWRANGE:
 614                 {
 615                         return wlcompat_ioctl_getiwrange(dev, extra);
 616                         break;
 617                 }
 618                 case SIOCSIWMODE:
 619                 {
 620                         int ap = -1, infra = -1, passive = 0, wet = 0;
 621
 622                         switch (wrqu->mode) {
 623                                 case IW_MODE_MONITOR:
 624                                         passive = 1;
 625                                         break;
 626                                 case IW_MODE_ADHOC:
 627                                         infra = 0;
 628                                         ap = 0;
 629                                         break;
 630                                 case IW_MODE_MASTER:
 631                                         infra = 1;
 632                                         ap = 1;
 633                                         break;
 634                                 case IW_MODE_INFRA:
 635                                         infra = 1;
 636                                         ap = 0;
 637                                         break;
 638                                 case IW_MODE_REPEAT:
 639                                         infra = 1;
 640                                         ap = 0;
 641                                         wet = 1;
 642                                         break;
 643
 644                                 default:
 645                                         return -EINVAL;
 646                         }
 647
 648                         wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
 649                         wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
 650                         wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
 651                         if (ap >= 0)
 652                                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 653                         if (infra >= 0)
 654                                 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
 655
 656                         break;
 657
 658                 }
 659                 case SIOCGIWMODE:
 660                 {
 661                         int ap, infra, wet, passive;
 662
 663                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 664                                 return -EINVAL;
 665                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 666                                 return -EINVAL;
 667                         if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
 668                                 return -EINVAL;
 669                         if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
 670                                 return -EINVAL;
 671
 672                         if (passive) {
 673                                 wrqu->mode = IW_MODE_MONITOR;
 674                         } else if (!infra) {
 675                                 wrqu->mode = IW_MODE_ADHOC;
 676                         } else {
 677                                 if (ap) {
 678                                         wrqu->mode = IW_MODE_MASTER;
 679                                 } else {
 680                                         if (wet) {
 681                                                 wrqu->mode = IW_MODE_REPEAT;
 682                                         } else {
 683                                                 wrqu->mode = IW_MODE_INFRA;
 684                                         }
 685                                 }
 686                         }
 687                         break;
 688                 }
 689                 default:
 690                 {
 691                         if (info->cmd >= SIOCIWFIRSTPRIV)
 692                                 return wlcompat_private_ioctl(dev, info, wrqu, extra);
 693
 694                         return -EINVAL;
 695                 }
 696         }
 697
 698         return 0;
 699 }
 700
 701 static const iw_handler  wlcompat_handler[] = {
 702         NULL,                   /* SIOCSIWCOMMIT */
 703         wlcompat_ioctl,         /* SIOCGIWNAME */
 704         NULL,                   /* SIOCSIWNWID */
 705         NULL,                   /* SIOCGIWNWID */
 706         wlcompat_ioctl,         /* SIOCSIWFREQ */
 707         wlcompat_ioctl,         /* SIOCGIWFREQ */
 708         wlcompat_ioctl,         /* SIOCSIWMODE */
 709         wlcompat_ioctl,         /* SIOCGIWMODE */
 710         NULL,                   /* SIOCSIWSENS */
 711         NULL,                   /* SIOCGIWSENS */
 712         NULL,                   /* SIOCSIWRANGE, unused */
 713         wlcompat_ioctl,         /* SIOCGIWRANGE */
 714         NULL,                   /* SIOCSIWPRIV */
 715         NULL,                   /* SIOCGIWPRIV */
 716         NULL,                   /* SIOCSIWSTATS */
 717         NULL,                   /* SIOCGIWSTATS */
 718         iw_handler_set_spy,     /* SIOCSIWSPY */
 719         iw_handler_get_spy,     /* SIOCGIWSPY */
 720         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 721         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 722         wlcompat_ioctl,         /* SIOCSIWAP */
 723         wlcompat_ioctl,         /* SIOCGIWAP */
 724         NULL,                   /* -- hole -- */
 725         NULL,                   /* SIOCGIWAPLIST */
 726         wlcompat_set_scan,      /* SIOCSIWSCAN */
 727         wlcompat_get_scan,      /* SIOCGIWSCAN */
 728         wlcompat_ioctl,         /* SIOCSIWESSID */
 729         wlcompat_ioctl,         /* SIOCGIWESSID */
 730         NULL,                   /* SIOCSIWNICKN */
 731         NULL,                   /* SIOCGIWNICKN */
 732         NULL,                   /* -- hole -- */
 733         NULL,                   /* -- hole -- */
 734         NULL,                   /* SIOCSIWRATE */
 735         NULL,                   /* SIOCGIWRATE */
 736         wlcompat_ioctl,         /* SIOCSIWRTS */
 737         wlcompat_ioctl,         /* SIOCGIWRTS */
 738         wlcompat_ioctl,         /* SIOCSIWFRAG */
 739         wlcompat_ioctl,         /* SIOCGIWFRAG */
 740         wlcompat_ioctl,         /* SIOCSIWTXPOW */
 741         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 742         NULL,                   /* SIOCSIWRETRY */
 743         NULL,                   /* SIOCGIWRETRY */
 744         wlcompat_ioctl,         /* SIOCSIWENCODE */
 745         wlcompat_ioctl,         /* SIOCGIWENCODE */
 746 };
 747
 748
 749 #define WLCOMPAT_SET_MONITOR            SIOCIWFIRSTPRIV + 0
 750 #define WLCOMPAT_GET_MONITOR            SIOCIWFIRSTPRIV + 1
 751 #define WLCOMPAT_SET_TXPWR_LIMIT        SIOCIWFIRSTPRIV + 2
 752 #define WLCOMPAT_GET_TXPWR_LIMIT        SIOCIWFIRSTPRIV + 3
 753 #define WLCOMPAT_SET_ANTDIV                     SIOCIWFIRSTPRIV + 4
 754 #define WLCOMPAT_GET_ANTDIV                     SIOCIWFIRSTPRIV + 5
 755 #define WLCOMPAT_SET_TXANT                      SIOCIWFIRSTPRIV + 6
 756 #define WLCOMPAT_GET_TXANT                      SIOCIWFIRSTPRIV + 7
 757 #define WLCOMPAT_SET_BSS_FORCE          SIOCIWFIRSTPRIV + 8
 758 #define WLCOMPAT_GET_BSS_FORCE          SIOCIWFIRSTPRIV + 9
 759
 760
 761 static int wlcompat_private_ioctl(struct net_device *dev,
 762                          struct iw_request_info *info,
 763                          union iwreq_data *wrqu,
 764                          char *extra)
 765 {
 766         int *value = (int *) wrqu->name;
 767
 768         switch (info->cmd) {
 769                 case WLCOMPAT_SET_MONITOR:
 770                 {
 771                         if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
 772                                 return -EINVAL;
 773
 774                         break;
 775                 }
 776                 case WLCOMPAT_GET_MONITOR:
 777                 {
 778                         if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
 779                                 return -EINVAL;
 780
 781                         break;
 782                 }
 783                 case WLCOMPAT_SET_TXPWR_LIMIT:
 784                 {
 785                         int val;
 786
 787
 788                         if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 789                                 return -EINVAL;
 790
 791                         if (*extra > 0)
 792                                 val |= WL_TXPWR_OVERRIDE;
 793                         else
 794                                 val &= ~WL_TXPWR_OVERRIDE;
 795
 796                         if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 797                                 return -EINVAL;
 798
 799                         break;
 800                 }
 801                 case WLCOMPAT_GET_TXPWR_LIMIT:
 802                 {
 803                         if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
 804                                 return -EINVAL;
 805
 806                         *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
 807
 808                         break;
 809                 }
 810                 case WLCOMPAT_SET_ANTDIV:
 811                 {
 812                         if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
 813                                 return -EINVAL;
 814
 815                         break;
 816                 }
 817                 case WLCOMPAT_GET_ANTDIV:
 818                 {
 819                         if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
 820                                 return -EINVAL;
 821
 822                         break;
 823                 }
 824                 case WLCOMPAT_SET_TXANT:
 825                 {
 826                         if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
 827                                 return -EINVAL;
 828
 829                         break;
 830                 }
 831                 case WLCOMPAT_GET_TXANT:
 832                 {
 833                         if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
 834                                 return -EINVAL;
 835
 836                         break;
 837                 }
 838                 case WLCOMPAT_SET_BSS_FORCE:
 839                 {
 840                         bss_force = (unsigned short) *value;
 841                         break;
 842                 }
 843                 case WLCOMPAT_GET_BSS_FORCE:
 844                 {
 845                         *extra = (int) bss_force;
 846                         break;
 847                 }
 848                 default:
 849                 {
 850                         return -EINVAL;
 851                 }
 852
 853         }
 854         return 0;
 855 }
 856
 857 static const struct iw_priv_args wlcompat_private_args[] =
 858 {
 859         {       WLCOMPAT_SET_MONITOR,
 860                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 861                 0,
 862                 "set_monitor"
 863         },
 864         {       WLCOMPAT_GET_MONITOR,
 865                 0,
 866                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 867                 "get_monitor"
 868         },
 869         {       WLCOMPAT_SET_TXPWR_LIMIT,
 870                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 871                 0,
 872                 "set_txpwr_force"
 873         },
 874         {       WLCOMPAT_GET_TXPWR_LIMIT,
 875                 0,
 876                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 877                 "get_txpwr_force"
 878         },
 879         {       WLCOMPAT_SET_ANTDIV,
 880                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 881                 0,
 882                 "set_antdiv"
 883         },
 884         {       WLCOMPAT_GET_ANTDIV,
 885                 0,
 886                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 887                 "get_antdiv"
 888         },
 889         {       WLCOMPAT_SET_TXANT,
 890                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 891                 0,
 892                 "set_txant"
 893         },
 894         {       WLCOMPAT_GET_TXANT,
 895                 0,
 896                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 897                 "get_txant"
 898         },
 899         {       WLCOMPAT_SET_BSS_FORCE,
 900                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 901                 0,
 902                 "set_bss_force"
 903         },
 904         {       WLCOMPAT_GET_BSS_FORCE,
 905                 0,
 906                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 907                 "get_bss_force"
 908         },
 909 };
 910
 911 static const iw_handler wlcompat_private[] =
 912 {
 913         wlcompat_private_ioctl,
 914         NULL
 915 };
 916
 917
 918 static const struct iw_handler_def wlcompat_handler_def =
 919 {
 920         .standard       = (iw_handler *) wlcompat_handler,
 921         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 922         .private        = wlcompat_private,
 923         .num_private    = 1,
 924         .private_args   = wlcompat_private_args,
 925         .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
 926 };
 927
 928
 929 #ifdef DEBUG
 930 void print_buffer(int len, unsigned char *buf) {
 931         int x;
 932         if (buf != NULL) {
 933                 for (x=0;x<len && x<180 ;x++) {
 934                         if ((x % 4) == 0)
 935                                 printk(" ");
 936                         printk("%02X",buf[x]);
 937                 }
 938         } else {
 939                 printk(" NULL");
 940         }
 941         printk("\n");
 942
 943 }
 944 #endif
 945 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 946 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 947         int ret = 0;
 948         struct iwreq *iwr = (struct iwreq *) ifr;
 949         struct iw_request_info info;
 950
 951 #ifdef DEBUG
 952         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 953 #endif
 954
 955         if (cmd >= SIOCIWFIRSTPRIV) {
 956                 info.cmd = cmd;
 957                 info.flags = 0;
 958                 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
 959 #ifdef DEBUG
 960         } else if (cmd==SIOCDEVPRIVATE) {
 961                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 962                 unsigned char *buf = ioc->buf;
 963                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 964                 printk("   send: ->");
 965                 print_buffer(ioc->len, buf);
 966                 ret = old_ioctl(dev,ifr,cmd);
 967                 printk("   recv: ->");
 968                 print_buffer(ioc->len, buf);
 969                 printk("   ret: %d\n", ret);
 970 #endif
 971         } else {
 972                 ret = old_ioctl(dev,ifr,cmd);
 973         }
 974         return ret;
 975 }
 976
 977 static int __init wlcompat_init()
 978 {
 979         int found = 0, i;
 980         char *devname = "eth0";
 981         bss_force = 0;
 982
 983         while (!found && (dev = dev_get_by_name(devname))) {
 984                 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
 985                         found = 1;
 986                 devname[3]++;
 987         }
 988
 989         if (!found) {
 990                 printk("No Broadcom devices found.\n");
 991                 return -ENODEV;
 992         }
 993
 994
 995         old_ioctl = dev->do_ioctl;
 996         dev->do_ioctl = new_ioctl;
 997         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 998         dev->get_wireless_stats = wlcompat_get_wireless_stats;
 999 #ifdef DEBUG
1000         printk("broadcom driver private data: 0x%08x\n", dev->priv);
1001 #endif
1002         return 0;
1003 }
1004
1005 static void __exit wlcompat_exit()
1006 {
1007         dev->get_wireless_stats = NULL;
1008         dev->wireless_handlers = NULL;
1009         dev->do_ioctl = old_ioctl;
1010         return;
1011 }
1012
1013 EXPORT_NO_SYMBOLS;
1014 MODULE_AUTHOR("openwrt.org");
1015 MODULE_LICENSE("GPL");
1016
1017 module_init(wlcompat_init);
1018 module_exit(wlcompat_exit);