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
 143         range->we_version_compiled = WIRELESS_EXT;
 144         range->we_version_source = WIRELESS_EXT;
 145
 146         range->min_nwid = range->max_nwid = 0;
 147
 148         range->num_channels = NUM_CHANNELS;
 149         k = 0;
 150         for (i = 0; i < NUM_CHANNELS; i++) {
 151                 range->freq[k].i = i + 1;
 152                 range->freq[k].m = channel_frequency[i] * 100000;
 153                 range->freq[k].e = 1;
 154                 k++;
 155                 if (k >= IW_MAX_FREQUENCIES)
 156                         break;
 157         }
 158         range->num_frequency = k;
 159         range->sensitivity = 3;
 160
 161         /* nbd: don't know what this means, but other drivers set it this way */
 162         range->pmp_flags = IW_POWER_PERIOD;
 163         range->pmt_flags = IW_POWER_TIMEOUT;
 164         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
 165
 166         range->min_pmp = 0;
 167         range->max_pmp = 65535000;
 168         range->min_pmt = 0;
 169         range->max_pmt = 65535 * 1000;
 170
 171         range->max_qual.qual = 0;
 172         range->max_qual.level = 100;
 173         range->max_qual.noise = 100;
 174
 175         range->min_rts = 0;
 176         if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
 177                 range->max_rts = 2347;
 178
 179         range->min_frag = 256;
 180
 181         if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
 182                 range->max_frag = 2346;
 183
 184         range->txpower_capa = IW_TXPOW_DBM;
 185
 186         return 0;
 187 }
 188
 189
 190 static int wlcompat_set_scan(struct net_device *dev,
 191                          struct iw_request_info *info,
 192                          union iwreq_data *wrqu,
 193                          char *extra)
 194 {
 195         int ap = 0, oldap = 0;
 196         wl_scan_params_t params;
 197
 198         memset(&params, 0, sizeof(params));
 199
 200         /* use defaults (same parameters as wl scan) */
 201         memset(&params.bssid, 0xff, sizeof(params.bssid));
 202         params.bss_type = DOT11_BSSTYPE_ANY;
 203         params.scan_type = -1;
 204         params.nprobes = -1;
 205         params.active_time = -1;
 206         params.passive_time = -1;
 207         params.home_time = -1;
 208
 209         /* can only scan in STA mode */
 210         wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
 211         if (oldap > 0)
 212                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 213
 214         if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
 215                 return -EINVAL;
 216
 217         if (oldap > 0)
 218                 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
 219
 220         return 0;
 221 }
 222
 223
 224 struct iw_statistics *wlcompat_get_wireless_stats(struct net_device *dev)
 225 {
 226         wl_bss_info_t *bss_info = (wl_bss_info_t *) buf;
 227         get_pktcnt_t pkt;
 228         int rssi, noise;
 229
 230         memset(&wstats, 0, sizeof(wstats));
 231         memset(&pkt, 0, sizeof(pkt));
 232         memset(buf, 0, sizeof(buf));
 233         bss_info->version = 0x2000;
 234         wl_ioctl(dev, WLC_GET_BSS_INFO, bss_info, WLC_IOCTL_MAXLEN);
 235         wl_ioctl(dev, WLC_GET_PKTCNTS, &pkt, sizeof(pkt));
 236
 237         // somehow the structure doesn't fit here
 238         noise = buf[0x50];
 239         rssi = buf[0x52];
 240
 241         wstats.qual.level = rssi;
 242         wstats.qual.noise = -100 + noise;
 243         wstats.discard.misc = pkt.rx_bad_pkt;
 244         wstats.discard.retries = pkt.tx_bad_pkt;
 245
 246         return &wstats;
 247 }
 248
 249 static int wlcompat_get_scan(struct net_device *dev,
 250                          struct iw_request_info *info,
 251                          union iwreq_data *wrqu,
 252                          char *extra)
 253 {
 254         wl_scan_results_t *results = (wl_scan_results_t *) buf;
 255         wl_bss_info_t *bss_info;
 256         char *info_ptr;
 257         char *current_ev = extra;
 258         char *current_val;
 259         char *end_buf = extra + IW_SCAN_MAX_DATA;
 260         struct iw_event iwe;
 261         int i, j;
 262         int rssi, noise;
 263
 264         results->buflen = WLC_IOCTL_MAXLEN - sizeof(wl_scan_results_t);
 265
 266         if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
 267                 return -EAGAIN;
 268
 269         bss_info = &(results->bss_info[0]);
 270         info_ptr = (char *) bss_info;
 271         for (i = 0; i < results->count; i++) {
 272
 273                 /* send the cell address (must be sent first) */
 274                 iwe.cmd = SIOCGIWAP;
 275                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 276                 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
 277                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
 278
 279                 /* send the ESSID */
 280                 iwe.cmd = SIOCGIWESSID;
 281                 iwe.u.data.length = bss_info->SSID_len;
 282                 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
 283                         iwe.u.data.length = IW_ESSID_MAX_SIZE;
 284                 iwe.u.data.flags = 1;
 285                 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
 286
 287                 /* send frequency/channel info */
 288                 iwe.cmd = SIOCGIWFREQ;
 289                 iwe.u.freq.e = 0;
 290                 iwe.u.freq.m = bss_info->channel;
 291                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 292
 293                 /* add quality statistics */
 294                 iwe.cmd = IWEVQUAL;
 295                 iwe.u.qual.qual = 0;
 296                 iwe.u.qual.level = bss_info->RSSI;
 297                 iwe.u.qual.noise = bss_info->phy_noise;
 298                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
 299
 300                 /* send rate information */
 301                 iwe.cmd = SIOCGIWRATE;
 302                 current_val = current_ev + IW_EV_LCP_LEN;
 303                 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 304
 305                 for(j = 0 ; j < bss_info->rateset.count ; j++) {
 306                         iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
 307                         current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
 308                 }
 309                 if((current_val - current_ev) > IW_EV_LCP_LEN)
 310                         current_ev = current_val;
 311
 312                 info_ptr += sizeof(wl_bss_info_t);
 313                 if (bss_info->ie_length % 4)
 314                         info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
 315                 else
 316                         info_ptr += bss_info->ie_length;
 317                 bss_info = (wl_bss_info_t *) info_ptr;
 318         }
 319
 320         wrqu->data.length = (current_ev - extra);
 321         wrqu->data.flags = 0;
 322
 323         return 0;
 324 }
 325
 326 static int wlcompat_ioctl(struct net_device *dev,
 327                          struct iw_request_info *info,
 328                          union iwreq_data *wrqu,
 329                          char *extra)
 330 {
 331         switch (info->cmd) {
 332                 case SIOCGIWNAME:
 333                         strcpy(wrqu->name, "IEEE 802.11-DS");
 334                         break;
 335                 case SIOCGIWFREQ:
 336                 {
 337                         channel_info_t ci;
 338
 339                         if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
 340                                 return -EINVAL;
 341
 342                         wrqu->freq.m = ci.target_channel;
 343                         wrqu->freq.e = 0;
 344                         break;
 345                 }
 346                 case SIOCSIWFREQ:
 347                 {
 348                         if (wrqu->freq.m == -1) {
 349                                 wrqu->freq.m = 0;
 350                                 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 351                                         return -EINVAL;
 352                         } else {
 353                                 if (wrqu->freq.e == 1) {
 354                                         int channel = 0;
 355                                         int f = wrqu->freq.m / 100000;
 356                                         while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
 357                                                 channel++;
 358
 359                                         if (channel == NUM_CHANNELS) // channel not found
 360                                                 return -EINVAL;
 361
 362                                         wrqu->freq.e = 0;
 363                                         wrqu->freq.m = channel + 1;
 364                                 }
 365                                 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
 366                                         if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 367                                                 return -EINVAL;
 368                                 } else {
 369                                         return -EINVAL;
 370                                 }
 371                         }
 372                         break;
 373                 }
 374                 case SIOCSIWAP:
 375                 {
 376                         int ap = 0;
 377                         int infra = 0;
 378                         rw_reg_t reg;
 379
 380                         memset(&reg, 0, sizeof(reg));
 381
 382                         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 383                                 return -EINVAL;
 384
 385                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 386                                 return -EINVAL;
 387
 388                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 389                                 return -EINVAL;
 390
 391                         if (!infra) {
 392                                 wl_ioctl(dev, WLC_SET_BSSID, wrqu->ap_addr.sa_data, 6);
 393
 394                                 reg.size = 4;
 395                                 reg.byteoff = 0x184;
 396                                 reg.val = bss_force << 16 | bss_force;
 397                                 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
 398
 399                                 reg.byteoff = 0x180;
 400                                 wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 401                                 reg.val = bss_force << 16;
 402                                 wl_ioctl(dev, WLC_W_REG, &reg, sizeof(reg));
 403                         }
 404
 405                         if (wl_ioctl(dev, ((ap || !infra) ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
 406                                 return -EINVAL;
 407
 408                         break;
 409                 }
 410                 case SIOCGIWAP:
 411                 {
 412 #ifdef DEBUG
 413                         rw_reg_t reg;
 414                         memset(&reg, 0, sizeof(reg));
 415
 416                         reg.size = 4;
 417                         reg.byteoff = 0x184;
 418                         wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 419                         printk("bss time = 0x%08x", reg.val);
 420
 421                         reg.byteoff = 0x180;
 422                         wl_ioctl(dev, WLC_R_REG, &reg, sizeof(reg));
 423                         printk("%08x\n", reg.val);
 424 #endif
 425
 426                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 427                         if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 428                                 return -EINVAL;
 429                         break;
 430                 }
 431                 case SIOCGIWESSID:
 432                 {
 433                         wlc_ssid_t ssid;
 434
 435                         if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
 436                                 return -EINVAL;
 437
 438                         wrqu->essid.flags = wrqu->data.flags = 1;
 439                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 440                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 441                         break;
 442                 }
 443                 case SIOCSIWESSID:
 444                 {
 445                         wlc_ssid_t ssid;
 446                         memset(&ssid, 0, sizeof(ssid));
 447                         ssid.SSID_len = strlen(extra);
 448                         if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
 449                                 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
 450                         memcpy(ssid.SSID, extra, ssid.SSID_len);
 451                         if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
 452                                 return -EINVAL;
 453                         break;
 454                 }
 455                 case SIOCGIWRTS:
 456                 {
 457                         if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 458                                 return -EINVAL;
 459                         break;
 460                 }
 461                 case SIOCSIWRTS:
 462                 {
 463                         if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 464                                 return -EINVAL;
 465                         break;
 466                 }
 467                 case SIOCGIWFRAG:
 468                 {
 469                         if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 470                                 return -EINVAL;
 471                         break;
 472                 }
 473                 case SIOCSIWFRAG:
 474                 {
 475                         if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 476                                 return -EINVAL;
 477                         break;
 478                 }
 479                 case SIOCGIWTXPOW:
 480                 {
 481                         int radio;
 482
 483                         wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
 484
 485                         if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 486                                 return -EINVAL;
 487
 488                         wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
 489                         wrqu->txpower.value /= 4;
 490
 491                         wrqu->txpower.fixed = 0;
 492                         wrqu->txpower.disabled = radio;
 493                         wrqu->txpower.flags = IW_TXPOW_DBM;
 494                         break;
 495                 }
 496                 case SIOCSIWTXPOW:
 497                 {
 498                         /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
 499                         int radio = wrqu->txpower.disabled;
 500
 501                         wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
 502
 503                         if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
 504                                 int value;
 505
 506                                 if (wl_get_val(dev, "qtxpower", &value, sizeof(int)) < 0)
 507                                         return -EINVAL;
 508
 509                                 value &= WL_TXPWR_OVERRIDE;
 510                                 wrqu->txpower.value *= 4;
 511                                 wrqu->txpower.value |= value;
 512
 513                                 if (wrqu->txpower.flags != IW_TXPOW_DBM)
 514                                         return -EINVAL;
 515
 516                                 if (wrqu->txpower.value > 0)
 517                                         if (wl_set_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 518                                                 return -EINVAL;
 519                         }
 520                         break;
 521                 }
 522                 case SIOCSIWENCODE:
 523                 {
 524                         int val = 0, wep = 1, wrestrict = 1;
 525                         int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
 526
 527                         if (index < 0)
 528                                 index = get_primary_key(dev);
 529
 530                         if (wrqu->data.flags & IW_ENCODE_DISABLED) {
 531                                 wep = 0;
 532                                 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 533                                         return -EINVAL;
 534                                 return 0;
 535                         }
 536
 537                         if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 538                                 return -EINVAL;
 539
 540                         if (wrqu->data.flags & IW_ENCODE_OPEN)
 541                                 wrestrict = 0;
 542
 543                         if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
 544                                 wl_wsec_key_t key;
 545                                 memset(&key, 0, sizeof(key));
 546
 547                                 key.flags = WL_PRIMARY_KEY;
 548                                 key.len = wrqu->data.length;
 549                                 key.index = index;
 550                                 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
 551
 552                                 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
 553                                         return -EINVAL;
 554                         }
 555
 556                         if (index >= 0)
 557                                 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
 558
 559                         if (wrestrict >= 0)
 560                                 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
 561
 562                         break;
 563                 }
 564                 case SIOCGIWENCODE:
 565                 {
 566                         int val;
 567
 568                         if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
 569                                 return -EINVAL;
 570
 571
 572                         if (val > 0) {
 573                                 int key = get_primary_key(dev);
 574
 575                                 wrqu->data.flags = IW_ENCODE_ENABLED;
 576                                 if (key-- > 0) {
 577                                         int *info_addr;
 578                                         wkey *wep_key;
 579
 580                                         info_addr = (int *) dev->priv;
 581                                         wep_key = (wkey *) ((*info_addr) + 0x2752 + (key * 0x110));
 582
 583                                         wrqu->data.flags |= key + 1;
 584                                         wrqu->data.length = wep_key->len;
 585
 586                                         memset(extra, 0, 16);
 587                                         memcpy(extra, wep_key->data, 16);
 588                                 } else {
 589                                         wrqu->data.flags |= IW_ENCODE_NOKEY;
 590                                 }
 591                         } else {
 592                                 wrqu->data.flags = IW_ENCODE_DISABLED;
 593                         }
 594
 595                         break;
 596                 }
 597                 case SIOCGIWRANGE:
 598                 {
 599                         return wlcompat_ioctl_getiwrange(dev, extra);
 600                         break;
 601                 }
 602                 case SIOCSIWMODE:
 603                 {
 604                         int ap = -1, infra = -1, passive = 0, wet = 0;
 605
 606                         switch (wrqu->mode) {
 607                                 case IW_MODE_MONITOR:
 608                                         passive = 1;
 609                                         break;
 610                                 case IW_MODE_ADHOC:
 611                                         infra = 0;
 612                                         ap = 0;
 613                                         break;
 614                                 case IW_MODE_MASTER:
 615                                         infra = 1;
 616                                         ap = 1;
 617                                         break;
 618                                 case IW_MODE_INFRA:
 619                                         infra = 1;
 620                                         ap = 0;
 621                                         break;
 622                                 case IW_MODE_REPEAT:
 623                                         infra = 1;
 624                                         ap = 0;
 625                                         wet = 1;
 626                                         break;
 627
 628                                 default:
 629                                         return -EINVAL;
 630                         }
 631
 632                         wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
 633                         wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
 634                         wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
 635                         if (ap >= 0)
 636                                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 637                         if (infra >= 0)
 638                                 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
 639
 640                         break;
 641
 642                 }
 643                 case SIOCGIWMODE:
 644                 {
 645                         int ap, infra, wet, passive;
 646
 647                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 648                                 return -EINVAL;
 649                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 650                                 return -EINVAL;
 651                         if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
 652                                 return -EINVAL;
 653                         if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
 654                                 return -EINVAL;
 655
 656                         if (passive) {
 657                                 wrqu->mode = IW_MODE_MONITOR;
 658                         } else if (!infra) {
 659                                 wrqu->mode = IW_MODE_ADHOC;
 660                         } else {
 661                                 if (ap) {
 662                                         wrqu->mode = IW_MODE_MASTER;
 663                                 } else {
 664                                         if (wet) {
 665                                                 wrqu->mode = IW_MODE_REPEAT;
 666                                         } else {
 667                                                 wrqu->mode = IW_MODE_INFRA;
 668                                         }
 669                                 }
 670                         }
 671                         break;
 672                 }
 673                 default:
 674                 {
 675                         if (info->cmd >= SIOCIWFIRSTPRIV)
 676                                 return wlcompat_private_ioctl(dev, info, wrqu, extra);
 677
 678                         return -EINVAL;
 679                 }
 680         }
 681
 682         return 0;
 683 }
 684
 685 static const iw_handler  wlcompat_handler[] = {
 686         NULL,                   /* SIOCSIWCOMMIT */
 687         wlcompat_ioctl,         /* SIOCGIWNAME */
 688         NULL,                   /* SIOCSIWNWID */
 689         NULL,                   /* SIOCGIWNWID */
 690         wlcompat_ioctl,         /* SIOCSIWFREQ */
 691         wlcompat_ioctl,         /* SIOCGIWFREQ */
 692         wlcompat_ioctl,         /* SIOCSIWMODE */
 693         wlcompat_ioctl,         /* SIOCGIWMODE */
 694         NULL,                   /* SIOCSIWSENS */
 695         NULL,                   /* SIOCGIWSENS */
 696         NULL,                   /* SIOCSIWRANGE, unused */
 697         wlcompat_ioctl,         /* SIOCGIWRANGE */
 698         NULL,                   /* SIOCSIWPRIV */
 699         NULL,                   /* SIOCGIWPRIV */
 700         NULL,                   /* SIOCSIWSTATS */
 701         NULL,                   /* SIOCGIWSTATS */
 702         iw_handler_set_spy,     /* SIOCSIWSPY */
 703         iw_handler_get_spy,     /* SIOCGIWSPY */
 704         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 705         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 706         wlcompat_ioctl,         /* SIOCSIWAP */
 707         wlcompat_ioctl,         /* SIOCGIWAP */
 708         NULL,                   /* -- hole -- */
 709         NULL,                   /* SIOCGIWAPLIST */
 710         wlcompat_set_scan,      /* SIOCSIWSCAN */
 711         wlcompat_get_scan,      /* SIOCGIWSCAN */
 712         wlcompat_ioctl,         /* SIOCSIWESSID */
 713         wlcompat_ioctl,         /* SIOCGIWESSID */
 714         NULL,                   /* SIOCSIWNICKN */
 715         NULL,                   /* SIOCGIWNICKN */
 716         NULL,                   /* -- hole -- */
 717         NULL,                   /* -- hole -- */
 718         NULL,                   /* SIOCSIWRATE */
 719         NULL,                   /* SIOCGIWRATE */
 720         wlcompat_ioctl,         /* SIOCSIWRTS */
 721         wlcompat_ioctl,         /* SIOCGIWRTS */
 722         wlcompat_ioctl,         /* SIOCSIWFRAG */
 723         wlcompat_ioctl,         /* SIOCGIWFRAG */
 724         wlcompat_ioctl,         /* SIOCSIWTXPOW */
 725         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 726         NULL,                   /* SIOCSIWRETRY */
 727         NULL,                   /* SIOCGIWRETRY */
 728         wlcompat_ioctl,         /* SIOCSIWENCODE */
 729         wlcompat_ioctl,         /* SIOCGIWENCODE */
 730 };
 731
 732
 733 #define WLCOMPAT_SET_MONITOR            SIOCIWFIRSTPRIV + 0
 734 #define WLCOMPAT_GET_MONITOR            SIOCIWFIRSTPRIV + 1
 735 #define WLCOMPAT_SET_TXPWR_LIMIT        SIOCIWFIRSTPRIV + 2
 736 #define WLCOMPAT_GET_TXPWR_LIMIT        SIOCIWFIRSTPRIV + 3
 737 #define WLCOMPAT_SET_ANTDIV             SIOCIWFIRSTPRIV + 4
 738 #define WLCOMPAT_GET_ANTDIV             SIOCIWFIRSTPRIV + 5
 739 #define WLCOMPAT_SET_TXANT              SIOCIWFIRSTPRIV + 6
 740 #define WLCOMPAT_GET_TXANT              SIOCIWFIRSTPRIV + 7
 741 #define WLCOMPAT_SET_BSS_FORCE          SIOCIWFIRSTPRIV + 8
 742 #define WLCOMPAT_GET_BSS_FORCE          SIOCIWFIRSTPRIV + 9
 743
 744
 745 static int wlcompat_private_ioctl(struct net_device *dev,
 746                          struct iw_request_info *info,
 747                          union iwreq_data *wrqu,
 748                          char *extra)
 749 {
 750         int *value = (int *) wrqu->name;
 751
 752         switch (info->cmd) {
 753                 case WLCOMPAT_SET_MONITOR:
 754                 {
 755                         if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
 756                                 return -EINVAL;
 757
 758                         break;
 759                 }
 760                 case WLCOMPAT_GET_MONITOR:
 761                 {
 762                         if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
 763                                 return -EINVAL;
 764
 765                         break;
 766                 }
 767                 case WLCOMPAT_SET_TXPWR_LIMIT:
 768                 {
 769                         int val;
 770
 771
 772                         if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 773                                 return -EINVAL;
 774
 775                         if (*extra > 0)
 776                                 val |= WL_TXPWR_OVERRIDE;
 777                         else
 778                                 val &= ~WL_TXPWR_OVERRIDE;
 779
 780                         if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 781                                 return -EINVAL;
 782
 783                         break;
 784                 }
 785                 case WLCOMPAT_GET_TXPWR_LIMIT:
 786                 {
 787                         if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
 788                                 return -EINVAL;
 789
 790                         *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
 791
 792                         break;
 793                 }
 794                 case WLCOMPAT_SET_ANTDIV:
 795                 {
 796                         if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
 797                                 return -EINVAL;
 798
 799                         break;
 800                 }
 801                 case WLCOMPAT_GET_ANTDIV:
 802                 {
 803                         if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
 804                                 return -EINVAL;
 805
 806                         break;
 807                 }
 808                 case WLCOMPAT_SET_TXANT:
 809                 {
 810                         if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
 811                                 return -EINVAL;
 812
 813                         break;
 814                 }
 815                 case WLCOMPAT_GET_TXANT:
 816                 {
 817                         if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
 818                                 return -EINVAL;
 819
 820                         break;
 821                 }
 822                 case WLCOMPAT_SET_BSS_FORCE:
 823                 {
 824                         bss_force = (unsigned short) *value;
 825                         break;
 826                 }
 827                 case WLCOMPAT_GET_BSS_FORCE:
 828                 {
 829                         *extra = (int) bss_force;
 830                         break;
 831                 }
 832                 default:
 833                 {
 834                         return -EINVAL;
 835                 }
 836
 837         }
 838         return 0;
 839 }
 840
 841 static const struct iw_priv_args wlcompat_private_args[] =
 842 {
 843         {       WLCOMPAT_SET_MONITOR,
 844                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 845                 0,
 846                 "set_monitor"
 847         },
 848         {       WLCOMPAT_GET_MONITOR,
 849                 0,
 850                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 851                 "get_monitor"
 852         },
 853         {       WLCOMPAT_SET_TXPWR_LIMIT,
 854                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 855                 0,
 856                 "set_txpwr_force"
 857         },
 858         {       WLCOMPAT_GET_TXPWR_LIMIT,
 859                 0,
 860                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 861                 "get_txpwr_force"
 862         },
 863         {       WLCOMPAT_SET_ANTDIV,
 864                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 865                 0,
 866                 "set_antdiv"
 867         },
 868         {       WLCOMPAT_GET_ANTDIV,
 869                 0,
 870                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 871                 "get_antdiv"
 872         },
 873         {       WLCOMPAT_SET_TXANT,
 874                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 875                 0,
 876                 "set_txant"
 877         },
 878         {       WLCOMPAT_GET_TXANT,
 879                 0,
 880                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 881                 "get_txant"
 882         },
 883         {       WLCOMPAT_SET_BSS_FORCE,
 884                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 885                 0,
 886                 "set_bss_force"
 887         },
 888         {       WLCOMPAT_GET_BSS_FORCE,
 889                 0,
 890                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 891                 "get_bss_force"
 892         },
 893 };
 894
 895 static const iw_handler wlcompat_private[] =
 896 {
 897         wlcompat_private_ioctl,
 898         NULL
 899 };
 900
 901
 902 static const struct iw_handler_def wlcompat_handler_def =
 903 {
 904         .standard       = (iw_handler *) wlcompat_handler,
 905         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 906         .private        = wlcompat_private,
 907         .num_private    = 1,
 908         .private_args   = wlcompat_private_args,
 909         .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
 910 };
 911
 912
 913 #ifdef DEBUG
 914 void print_buffer(int len, unsigned char *buf) {
 915         int x;
 916         if (buf != NULL) {
 917                 for (x=0;x<len && x<180 ;x++) {
 918                         if ((x % 4) == 0)
 919                                 printk(" ");
 920                         printk("%02X",buf[x]);
 921                 }
 922         } else {
 923                 printk(" NULL");
 924         }
 925         printk("\n");
 926
 927 }
 928 #endif
 929 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 930 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 931         int ret = 0;
 932         struct iwreq *iwr = (struct iwreq *) ifr;
 933         struct iw_request_info info;
 934
 935 #ifdef DEBUG
 936         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 937 #endif
 938
 939         if (cmd >= SIOCIWFIRSTPRIV) {
 940                 info.cmd = cmd;
 941                 info.flags = 0;
 942                 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
 943 #ifdef DEBUG
 944         } else if (cmd==SIOCDEVPRIVATE) {
 945                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 946                 unsigned char *buf = ioc->buf;
 947                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 948                 printk("   send: ->");
 949                 print_buffer(ioc->len, buf);
 950                 ret = old_ioctl(dev,ifr,cmd);
 951                 printk("   recv: ->");
 952                 print_buffer(ioc->len, buf);
 953                 printk("   ret: %d\n", ret);
 954 #endif
 955         } else {
 956                 ret = old_ioctl(dev,ifr,cmd);
 957         }
 958         return ret;
 959 }
 960
 961 static int __init wlcompat_init()
 962 {
 963         int found = 0, i;
 964         char *devname = "eth0";
 965         bss_force = 0;
 966
 967         while (!found && (dev = dev_get_by_name(devname))) {
 968                 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
 969                         found = 1;
 970                 devname[3]++;
 971         }
 972
 973         if (!found) {
 974                 printk("No Broadcom devices found.\n");
 975                 return -ENODEV;
 976         }
 977
 978
 979         old_ioctl = dev->do_ioctl;
 980         dev->do_ioctl = new_ioctl;
 981         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 982         dev->get_wireless_stats = wlcompat_get_wireless_stats;
 983 #ifdef DEBUG
 984         printk("broadcom driver private data: 0x%08x\n", dev->priv);
 985 #endif
 986         return 0;
 987 }
 988
 989 static void __exit wlcompat_exit()
 990 {
 991         dev->get_wireless_stats = NULL;
 992         dev->wireless_handlers = NULL;
 993         dev->do_ioctl = old_ioctl;
 994         return;
 995 }
 996
 997 EXPORT_NO_SYMBOLS;
 998 MODULE_AUTHOR("openwrt.org");
 999 MODULE_LICENSE("GPL");
1000
1001 module_init(wlcompat_init);
1002 module_exit(wlcompat_exit);