package/openwrt/wlcompat.c

   1 /*
   2  * wlcompat.c
   3  *
   4  * Copyright (C) 2005 Mike Baker,
   5  *                    Felix Fietkau <nbd@vd-s.ath.cx>
   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 #include <wlcompat.h>
  35
  36 static struct net_device *dev;
  37 char buf[WLC_IOCTL_MAXLEN];
  38
  39 /* The frequency of each channel in MHz */
  40 const long channel_frequency[] = {
  41         2412, 2417, 2422, 2427, 2432, 2437, 2442,
  42         2447, 2452, 2457, 2462, 2467, 2472, 2484
  43 };
  44 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
  45
  46
  47
  48 static int wlcompat_private_ioctl(struct net_device *dev,
  49                          struct iw_request_info *info,
  50                          union iwreq_data *wrqu,
  51                          char *extra);
  52
  53 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
  54 {
  55         mm_segment_t old_fs = get_fs();
  56         struct ifreq ifr;
  57         int ret;
  58         wl_ioctl_t ioc;
  59         ioc.cmd = cmd;
  60         ioc.buf = buf;
  61         ioc.len = len;
  62         strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
  63         ifr.ifr_data = (caddr_t) &ioc;
  64         set_fs(KERNEL_DS);
  65         ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
  66         set_fs (old_fs);
  67         return ret;
  68 }
  69
  70 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
  71 {
  72         char buf[128];
  73         int buf_len;
  74
  75         /* check for overflow */
  76         if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
  77                 return -1;
  78
  79         strcpy(buf, var);
  80         buf_len += 1;
  81
  82         /* append int value onto the end of the name string */
  83         memcpy(&buf[buf_len], val, len);
  84         buf_len += len;
  85
  86         return wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
  87 }
  88
  89 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
  90 {
  91         char buf[128];
  92         int ret;
  93
  94         /* check for overflow */
  95         if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
  96                 return -1;
  97
  98         strcpy(buf, var);
  99         if ((ret = wl_ioctl(dev, WLC_GET_VAR, buf, sizeof(buf))))
 100                 return ret;
 101
 102         memcpy(val, buf, len);
 103         return 0;
 104 }
 105
 106 int read_shmem(struct net_device *dev, int offset)
 107 {
 108         if (wl_ioctl(dev, WLC_GET_SHMEM, &offset, sizeof(offset)) < 0)
 109                 return -EINVAL;
 110
 111         return offset;
 112 }
 113
 114 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
 115                                     char *extra)
 116 {
 117         int i, k;
 118         struct iw_range *range;
 119
 120         range = (struct iw_range *) extra;
 121
 122         range->we_version_compiled = WIRELESS_EXT;
 123         range->we_version_source = WIRELESS_EXT;
 124
 125         range->min_nwid = range->max_nwid = 0;
 126
 127         range->num_channels = NUM_CHANNELS;
 128         k = 0;
 129         for (i = 0; i < NUM_CHANNELS; i++) {
 130                 range->freq[k].i = i + 1;
 131                 range->freq[k].m = channel_frequency[i] * 100000;
 132                 range->freq[k].e = 1;
 133                 k++;
 134                 if (k >= IW_MAX_FREQUENCIES)
 135                         break;
 136         }
 137         range->num_frequency = k;
 138         range->sensitivity = 3;
 139
 140         /* nbd: don't know what this means, but other drivers set it this way */
 141         range->pmp_flags = IW_POWER_PERIOD;
 142         range->pmt_flags = IW_POWER_TIMEOUT;
 143         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
 144
 145         range->min_pmp = 0;
 146         range->max_pmp = 65535000;
 147         range->min_pmt = 0;
 148         range->max_pmt = 65535 * 1000;
 149
 150         range->min_rts = 0;
 151         if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
 152                 range->max_rts = 2347;
 153
 154         range->min_frag = 256;
 155
 156         if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
 157                 range->max_frag = 2346;
 158
 159         range->txpower_capa = IW_TXPOW_MWATT;
 160
 161         return 0;
 162 }
 163
 164
 165 static int wlcompat_set_scan(struct net_device *dev,
 166                          struct iw_request_info *info,
 167                          union iwreq_data *wrqu,
 168                          char *extra)
 169 {
 170         int ap = 0, oldap = 0;
 171         wl_scan_params_t params;
 172
 173         memset(&params, 0, sizeof(params));
 174
 175         /* use defaults (same parameters as wl scan) */
 176         memset(&params.bssid, 0xff, sizeof(params.bssid));
 177         params.bss_type = DOT11_BSSTYPE_ANY;
 178         params.scan_type = -1;
 179         params.nprobes = -1;
 180         params.active_time = -1;
 181         params.passive_time = -1;
 182         params.home_time = -1;
 183
 184         /* can only scan in STA mode */
 185         wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
 186         if (oldap > 0)
 187                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 188
 189         if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
 190                 return -EINVAL;
 191
 192         if (oldap > 0)
 193                 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
 194
 195         return 0;
 196 }
 197
 198
 199 static int wlcompat_get_scan(struct net_device *dev,
 200                          struct iw_request_info *info,
 201                          union iwreq_data *wrqu,
 202                          char *extra)
 203 {
 204         wl_scan_results_t *results = (wl_scan_results_t *) buf;
 205         wl_bss_info_t *bss_info;
 206         char *info_ptr;
 207         char *current_ev = extra;
 208         char *current_val;
 209         char *end_buf = extra + IW_SCAN_MAX_DATA;
 210         struct iw_event iwe;
 211         int i, j;
 212
 213         if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
 214                 return -EAGAIN;
 215
 216         bss_info = &(results->bss_info[0]);
 217         info_ptr = (char *) bss_info;
 218         for (i = 0; i < results->count; i++) {
 219
 220                 /* send the cell address (must be sent first) */
 221                 iwe.cmd = SIOCGIWAP;
 222                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 223                 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
 224                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
 225
 226                 /* send the ESSID */
 227                 iwe.cmd = SIOCGIWESSID;
 228                 iwe.u.data.length = bss_info->SSID_len;
 229                 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
 230                         iwe.u.data.length = IW_ESSID_MAX_SIZE;
 231                 iwe.u.data.flags = 1;
 232                 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
 233
 234                 /* send frequency/channel info */
 235                 iwe.cmd = SIOCGIWFREQ;
 236                 iwe.u.freq.e = 0;
 237                 iwe.u.freq.m = bss_info->channel;
 238                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 239
 240                 /* add quality statistics */
 241                 iwe.cmd = IWEVQUAL;
 242                 iwe.u.qual.level = bss_info->RSSI;
 243                 iwe.u.qual.noise = bss_info->phy_noise;
 244                 iwe.u.qual.qual = 0;
 245                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
 246
 247                 /* send rate information */
 248                 iwe.cmd = SIOCGIWRATE;
 249                 current_val = current_ev + IW_EV_LCP_LEN;
 250                 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 251
 252                 for(j = 0 ; j < bss_info->rateset.count ; j++) {
 253                         iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
 254                         current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
 255                 }
 256                 if((current_val - current_ev) > IW_EV_LCP_LEN)
 257                         current_ev = current_val;
 258
 259                 info_ptr += sizeof(wl_bss_info_t);
 260                 if (bss_info->ie_length % 4)
 261                         info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
 262                 else
 263                         info_ptr += bss_info->ie_length;
 264                 bss_info = (wl_bss_info_t *) info_ptr;
 265         }
 266
 267         wrqu->data.length = (current_ev - extra);
 268         wrqu->data.flags = 0;
 269
 270         return 0;
 271 }
 272
 273 static int wlcompat_ioctl(struct net_device *dev,
 274                          struct iw_request_info *info,
 275                          union iwreq_data *wrqu,
 276                          char *extra)
 277 {
 278         switch (info->cmd) {
 279                 case SIOCGIWNAME:
 280                         strcpy(wrqu->name, "IEEE 802.11-DS");
 281                         break;
 282                 case SIOCGIWFREQ:
 283                 {
 284                         channel_info_t ci;
 285
 286                         if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
 287                                 return -EINVAL;
 288
 289                         wrqu->freq.m = ci.target_channel;
 290                         wrqu->freq.e = 0;
 291                         break;
 292                 }
 293                 case SIOCSIWFREQ:
 294                 {
 295                         if (wrqu->freq.e == 1) {
 296                                 int channel = 0;
 297                                 int f = wrqu->freq.m / 100000;
 298                                 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
 299                                         channel++;
 300
 301                                 if (channel == NUM_CHANNELS) // channel not found
 302                                         return -EINVAL;
 303
 304                                 wrqu->freq.e = 0;
 305                                 wrqu->freq.m = channel + 1;
 306                         }
 307                         if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
 308                                 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 309                                         return -EINVAL;
 310                         } else {
 311                                 return -EINVAL;
 312                         }
 313                         break;
 314                 }
 315                 case SIOCSIWAP:
 316                 {
 317                         int ap = 0;
 318
 319                         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 320                                 return -EINVAL;
 321
 322                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 323                                 return -EINVAL;
 324
 325                         if (wl_ioctl(dev, (ap ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
 326                                 return -EINVAL;
 327
 328                         break;
 329                 }
 330                 case SIOCGIWAP:
 331                 {
 332                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 333                         if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 334                                 return -EINVAL;
 335                         break;
 336                 }
 337                 case SIOCGIWESSID:
 338                 {
 339                         wlc_ssid_t ssid;
 340
 341                         if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
 342                                 return -EINVAL;
 343
 344                         wrqu->essid.flags = wrqu->data.flags = 1;
 345                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 346                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 347                         break;
 348                 }
 349                 case SIOCSIWESSID:
 350                 {
 351                         wlc_ssid_t ssid;
 352                         memset(&ssid, 0, sizeof(ssid));
 353                         ssid.SSID_len = strlen(extra);
 354                         if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
 355                                 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
 356                         memcpy(ssid.SSID, extra, ssid.SSID_len);
 357                         if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
 358                                 return -EINVAL;
 359                         break;
 360                 }
 361                 case SIOCGIWRTS:
 362                 {
 363                         if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 364                                 return -EINVAL;
 365                         break;
 366                 }
 367                 case SIOCSIWRTS:
 368                 {
 369                         if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 370                                 return -EINVAL;
 371                         break;
 372                 }
 373                 case SIOCGIWFRAG:
 374                 {
 375                         if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 376                                 return -EINVAL;
 377                         break;
 378                 }
 379                 case SIOCSIWFRAG:
 380                 {
 381                         if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 382                                 return -EINVAL;
 383                         break;
 384                 }
 385                 case SIOCGIWTXPOW:
 386                 {
 387                         if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 388                                 return -EINVAL;
 389
 390                         wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
 391
 392                         wrqu->txpower.fixed = 0;
 393                         wrqu->txpower.disabled = 0;
 394                         wrqu->txpower.flags = IW_TXPOW_MWATT;
 395                         break;
 396                 }
 397                 case SIOCSIWTXPOW:
 398                 {
 399                         int override;
 400
 401                         if (wl_get_val(dev, "qtxpower", &override, sizeof(int)) < 0)
 402                                 return -EINVAL;
 403
 404                         wrqu->txpower.value |= override & WL_TXPWR_OVERRIDE;
 405
 406                         if (wrqu->txpower.flags != IW_TXPOW_MWATT)
 407                                 return -EINVAL;
 408
 409                         if (wl_set_val(dev, "qtxpower", &wrqu->txpower.value, sizeof(int)) < 0)
 410                                 return -EINVAL;
 411                 }
 412                 case SIOCGIWENCODE:
 413                 {
 414                         int val;
 415
 416                         if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
 417                                 return -EINVAL;
 418
 419
 420                         if (val > 0) {
 421                                 int key;
 422
 423                                 for (key = val = 0; (key < 4) && (val == 0); key++) {
 424                                         val = key;
 425                                         if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
 426                                                 return -EINVAL;
 427                                 }
 428
 429                                 wrqu->data.flags = IW_ENCODE_ENABLED;
 430                                 if (key-- > 0) {
 431                                         int magic_offset;
 432                                         int16 buffer[8];
 433
 434                                         magic_offset = read_shmem(dev, 0x56) * 2;
 435
 436                                         wrqu->data.flags |= key + 1;
 437                                         wrqu->data.length = 16;
 438
 439                                         for (val = 0; val < 8; val++) {
 440                                                 buffer[val] = read_shmem(dev, magic_offset + (key * 16) + val * 2);
 441                                         }
 442
 443                                         memset(extra, 0, 16);
 444                                         memcpy(extra, buffer, 16);
 445                                 } else {
 446                                         wrqu->data.flags |= IW_ENCODE_NOKEY;
 447                                 }
 448                         } else {
 449                                 wrqu->data.flags = IW_ENCODE_DISABLED;
 450                         }
 451
 452                         break;
 453                 }
 454                 case SIOCGIWRANGE:
 455                 {
 456                         return wlcompat_ioctl_getiwrange(dev, extra);
 457                         break;
 458                 }
 459                 case SIOCSIWMODE:
 460                 {
 461                         int ap = -1, infra = -1, passive = 0, wet = 0;
 462
 463                         switch (wrqu->mode) {
 464                                 case IW_MODE_MONITOR:
 465                                         passive = 1;
 466                                         break;
 467                                 case IW_MODE_ADHOC:
 468                                         infra = 0;
 469                                         ap = 0;
 470                                         break;
 471                                 case IW_MODE_MASTER:
 472                                         infra = 1;
 473                                         ap = 1;
 474                                         break;
 475                                 case IW_MODE_INFRA:
 476                                         infra = 1;
 477                                         ap = 0;
 478                                         break;
 479                                 case IW_MODE_REPEAT:
 480                                         infra = 1;
 481                                         ap = 0;
 482                                         wet = 1;
 483                                         break;
 484                                 default:
 485                                         return -EINVAL;
 486                         }
 487
 488                         if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
 489                                 return -EINVAL;
 490                         if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
 491                                 return -EINVAL;
 492                         if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
 493                                 return -EINVAL;
 494                         if (ap >= 0)
 495                                 if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
 496                                         return -EINVAL;
 497                         if (infra >= 0)
 498                                 if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
 499                                         return -EINVAL;
 500
 501                         break;
 502
 503                 }
 504                 case SIOCGIWMODE:
 505                 {
 506                         int ap, infra, wet, passive;
 507
 508                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 509                                 return -EINVAL;
 510                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 511                                 return -EINVAL;
 512                         if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
 513                                 return -EINVAL;
 514                         if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
 515                                 return -EINVAL;
 516
 517                         if (passive) {
 518                                 wrqu->mode = IW_MODE_MONITOR;
 519                         } else if (!infra) {
 520                                 wrqu->mode = IW_MODE_ADHOC;
 521                         } else {
 522                                 if (ap) {
 523                                         wrqu->mode = IW_MODE_MASTER;
 524                                 } else {
 525                                         if (wet) {
 526                                                 wrqu->mode = IW_MODE_REPEAT;
 527                                         } else {
 528                                                 wrqu->mode = IW_MODE_INFRA;
 529                                         }
 530                                 }
 531                         }
 532                         break;
 533                 }
 534                 default:
 535                 {
 536                         if (info->cmd >= SIOCIWFIRSTPRIV)
 537                                 return wlcompat_private_ioctl(dev, info, wrqu, extra);
 538
 539                         return -EINVAL;
 540                 }
 541         }
 542
 543         return 0;
 544 }
 545
 546 static const iw_handler  wlcompat_handler[] = {
 547         NULL,                   /* SIOCSIWCOMMIT */
 548         wlcompat_ioctl,         /* SIOCGIWNAME */
 549         NULL,                   /* SIOCSIWNWID */
 550         NULL,                   /* SIOCGIWNWID */
 551         wlcompat_ioctl,         /* SIOCSIWFREQ */
 552         wlcompat_ioctl,         /* SIOCGIWFREQ */
 553         wlcompat_ioctl,         /* SIOCSIWMODE */
 554         wlcompat_ioctl,         /* SIOCGIWMODE */
 555         NULL,                   /* SIOCSIWSENS */
 556         NULL,                   /* SIOCGIWSENS */
 557         NULL,                   /* SIOCSIWRANGE, unused */
 558         wlcompat_ioctl,         /* SIOCGIWRANGE */
 559         NULL,                   /* SIOCSIWPRIV */
 560         NULL,                   /* SIOCGIWPRIV */
 561         NULL,                   /* SIOCSIWSTATS */
 562         NULL,                   /* SIOCGIWSTATS */
 563         iw_handler_set_spy,     /* SIOCSIWSPY */
 564         iw_handler_get_spy,     /* SIOCGIWSPY */
 565         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 566         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 567         wlcompat_ioctl,         /* SIOCSIWAP */
 568         wlcompat_ioctl,         /* SIOCGIWAP */
 569         NULL,                   /* -- hole -- */
 570         NULL,                   /* SIOCGIWAPLIST */
 571         wlcompat_set_scan,      /* SIOCSIWSCAN */
 572         wlcompat_get_scan,      /* SIOCGIWSCAN */
 573         wlcompat_ioctl,         /* SIOCSIWESSID */
 574         wlcompat_ioctl,         /* SIOCGIWESSID */
 575         NULL,                   /* SIOCSIWNICKN */
 576         NULL,                   /* SIOCGIWNICKN */
 577         NULL,                   /* -- hole -- */
 578         NULL,                   /* -- hole -- */
 579         NULL,                   /* SIOCSIWRATE */
 580         NULL,                   /* SIOCGIWRATE */
 581         wlcompat_ioctl,         /* SIOCSIWRTS */
 582         wlcompat_ioctl,         /* SIOCGIWRTS */
 583         wlcompat_ioctl,         /* SIOCSIWFRAG */
 584         wlcompat_ioctl,         /* SIOCGIWFRAG */
 585         wlcompat_ioctl,         /* SIOCSIWTXPOW */
 586         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 587         NULL,                   /* SIOCSIWRETRY */
 588         NULL,                   /* SIOCGIWRETRY */
 589         NULL,                   /* SIOCSIWENCODE */
 590         wlcompat_ioctl,         /* SIOCGIWENCODE */
 591 };
 592
 593 static int wlcompat_private_ioctl(struct net_device *dev,
 594                          struct iw_request_info *info,
 595                          union iwreq_data *wrqu,
 596                          char *extra)
 597 {
 598         int *value = (int *) wrqu->name;
 599
 600         switch (info->cmd) {
 601                 case WLCOMPAT_SET_MONITOR:
 602                 {
 603                         if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
 604                                 return -EINVAL;
 605
 606                         break;
 607                 }
 608                 case WLCOMPAT_GET_MONITOR:
 609                 {
 610                         if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
 611                                 return -EINVAL;
 612
 613                         break;
 614                 }
 615                 case WLCOMPAT_SET_TXPWR_LIMIT:
 616                 {
 617                         int val;
 618
 619
 620                         if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 621                                 return -EINVAL;
 622
 623                         if (*extra > 0)
 624                                 val |= WL_TXPWR_OVERRIDE;
 625                         else
 626                                 val &= ~WL_TXPWR_OVERRIDE;
 627
 628                         if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 629                                 return -EINVAL;
 630
 631                         break;
 632                 }
 633                 case WLCOMPAT_GET_TXPWR_LIMIT:
 634                 {
 635                         if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
 636                                 return -EINVAL;
 637
 638                         *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
 639
 640                         break;
 641                 }
 642                 case WLCOMPAT_SET_ANTDIV:
 643                 {
 644                         if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
 645                                 return -EINVAL;
 646
 647                         break;
 648                 }
 649                 case WLCOMPAT_GET_ANTDIV:
 650                 {
 651                         if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
 652                                 return -EINVAL;
 653
 654                         break;
 655                 }
 656                 case WLCOMPAT_SET_TXANT:
 657                 {
 658                         if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
 659                                 return -EINVAL;
 660
 661                         break;
 662                 }
 663                 case WLCOMPAT_GET_TXANT:
 664                 {
 665                         if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
 666                                 return -EINVAL;
 667
 668                         break;
 669                 }
 670                 default:
 671                 {
 672                         return -EINVAL;
 673                 }
 674
 675         }
 676         return 0;
 677 }
 678
 679 static const struct iw_priv_args wlcompat_private_args[] =
 680 {
 681         {       WLCOMPAT_SET_MONITOR,
 682                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 683                 0,
 684                 "set_monitor"
 685         },
 686         {       WLCOMPAT_GET_MONITOR,
 687                 0,
 688                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 689                 "get_monitor"
 690         },
 691         {       WLCOMPAT_SET_TXPWR_LIMIT,
 692                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 693                 0,
 694                 "set_txpwr_force"
 695         },
 696         {       WLCOMPAT_GET_TXPWR_LIMIT,
 697                 0,
 698                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 699                 "get_txpwr_force"
 700         },
 701         {       WLCOMPAT_SET_ANTDIV,
 702                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 703                 0,
 704                 "set_antdiv"
 705         },
 706         {       WLCOMPAT_GET_ANTDIV,
 707                 0,
 708                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 709                 "get_antdiv"
 710         },
 711         {       WLCOMPAT_SET_TXANT,
 712                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 713                 0,
 714                 "set_txant"
 715         },
 716         {       WLCOMPAT_GET_TXANT,
 717                 0,
 718                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 719                 "get_txant"
 720         },
 721 };
 722
 723 static const iw_handler wlcompat_private[] =
 724 {
 725         wlcompat_private_ioctl,
 726         NULL
 727 };
 728
 729
 730 static const struct iw_handler_def wlcompat_handler_def =
 731 {
 732         .standard       = (iw_handler *) wlcompat_handler,
 733         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 734         .private        = wlcompat_private,
 735         .num_private    = 1,
 736         .private_args   = wlcompat_private_args,
 737         .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
 738 };
 739
 740
 741 #ifdef DEBUG
 742 void print_buffer(int len, unsigned char *buf) {
 743         int x;
 744         if (buf != NULL) {
 745                 for (x=0;x<len && x<180 ;x++) {
 746                         if ((x % 4) == 0)
 747                                 printk(" ");
 748                         printk("%02X",buf[x]);
 749                 }
 750         } else {
 751                 printk(" NULL");
 752         }
 753         printk("\n");
 754
 755 }
 756 #endif
 757 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 758 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 759         int ret = 0;
 760         struct iwreq *iwr = (struct iwreq *) ifr;
 761         struct iw_request_info info;
 762
 763 #ifdef DEBUG
 764         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 765 #endif
 766
 767         if (cmd >= SIOCIWFIRSTPRIV) {
 768                 info.cmd = cmd;
 769                 info.flags = 0;
 770                 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
 771 #ifdef DEBUG
 772         } else if (cmd==SIOCDEVPRIVATE) {
 773                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 774                 unsigned char *buf = ioc->buf;
 775                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 776                 printk("   send: ->");
 777                 print_buffer(ioc->len, buf);
 778                 ret = old_ioctl(dev,ifr,cmd);
 779                 printk("   recv: ->");
 780                 print_buffer(ioc->len, buf);
 781                 printk("   ret: %d\n", ret);
 782 #endif
 783         } else {
 784                 ret = old_ioctl(dev,ifr,cmd);
 785         }
 786         return ret;
 787 }
 788
 789 static int __init wlcompat_init()
 790 {
 791         int found = 0, i;
 792         char *devname = "eth0";
 793
 794         while (!found && (dev = dev_get_by_name(devname))) {
 795                 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
 796                         found = 1;
 797                 devname[3]++;
 798         }
 799
 800         if (!found) {
 801                 printk("No Broadcom devices found.\n");
 802                 return -ENODEV;
 803         }
 804
 805
 806         old_ioctl = dev->do_ioctl;
 807         dev->do_ioctl = new_ioctl;
 808         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 809         return 0;
 810 }
 811
 812 static void __exit wlcompat_exit()
 813 {
 814         dev->wireless_handlers = NULL;
 815         dev->do_ioctl = old_ioctl;
 816         return;
 817 }
 818
 819 EXPORT_NO_SYMBOLS;
 820 MODULE_AUTHOR("openwrt.org");
 821 MODULE_LICENSE("GPL");
 822
 823 module_init(wlcompat_init);
 824 module_exit(wlcompat_exit);