iwinfo_cli.c

   1 /*
   2  * iwinfo - Wireless Information Library - Command line frontend
   3  *
   4  *   Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  * The iwinfo library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   9  *
  10  * The iwinfo library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
  17  */
  18
  19 #include <stdio.h>
  20 #include <glob.h>
  21
  22 #include "iwinfo.h"
  23
  24
  25 static char * format_bssid(unsigned char *mac)
  26 {
  27         static char buf[18];
  28
  29         snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
  30                 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
  31
  32         return buf;
  33 }
  34
  35 static char * format_ssid(char *ssid)
  36 {
  37         static char buf[IWINFO_ESSID_MAX_SIZE+3];
  38
  39         if (ssid && ssid[0])
  40                 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
  41         else
  42                 snprintf(buf, sizeof(buf), "unknown");
  43
  44         return buf;
  45 }
  46
  47 static const char *format_band(int band)
  48 {
  49         const char *name;
  50
  51         name = iwinfo_band_name(band);
  52         if (name)
  53                 return name;
  54
  55         return "unknown";
  56 }
  57
  58 static char * format_channel(int ch)
  59 {
  60         static char buf[16];
  61
  62         if (ch <= 0)
  63                 snprintf(buf, sizeof(buf), "unknown");
  64         else
  65                 snprintf(buf, sizeof(buf), "%d", ch);
  66
  67         return buf;
  68 }
  69
  70 static char * format_frequency(int freq)
  71 {
  72         static char buf[11];
  73
  74         if (freq <= 0)
  75                 snprintf(buf, sizeof(buf), "unknown");
  76         else
  77                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
  78
  79         return buf;
  80 }
  81
  82 static char * format_txpower(int pwr)
  83 {
  84         static char buf[16];
  85
  86         if (pwr < 0)
  87                 snprintf(buf, sizeof(buf), "unknown");
  88         else
  89                 snprintf(buf, sizeof(buf), "%d dBm", pwr);
  90
  91         return buf;
  92 }
  93
  94 static char * format_quality(int qual)
  95 {
  96         static char buf[16];
  97
  98         if (qual < 0)
  99                 snprintf(buf, sizeof(buf), "unknown");
 100         else
 101                 snprintf(buf, sizeof(buf), "%d", qual);
 102
 103         return buf;
 104 }
 105
 106 static char * format_quality_max(int qmax)
 107 {
 108         static char buf[16];
 109
 110         if (qmax < 0)
 111                 snprintf(buf, sizeof(buf), "unknown");
 112         else
 113                 snprintf(buf, sizeof(buf), "%d", qmax);
 114
 115         return buf;
 116 }
 117
 118 static char * format_signal(int sig)
 119 {
 120         static char buf[10];
 121
 122         if (!sig)
 123                 snprintf(buf, sizeof(buf), "unknown");
 124         else
 125                 snprintf(buf, sizeof(buf), "%d dBm", sig);
 126
 127         return buf;
 128 }
 129
 130 static char * format_noise(int noise)
 131 {
 132         static char buf[10];
 133
 134         if (!noise)
 135                 snprintf(buf, sizeof(buf), "unknown");
 136         else
 137                 snprintf(buf, sizeof(buf), "%d dBm", noise);
 138
 139         return buf;
 140 }
 141
 142 static char * format_rate(int rate)
 143 {
 144         static char buf[18];
 145
 146         if (rate <= 0)
 147                 snprintf(buf, sizeof(buf), "unknown");
 148         else
 149                 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
 150                         rate / 1000, (rate % 1000) / 100);
 151
 152         return buf;
 153 }
 154
 155 static char * format_enc_ciphers(int ciphers)
 156 {
 157         static char str[128] = { 0 };
 158         char *pos = str;
 159         int i;
 160
 161         for (i = 0; i < IWINFO_CIPHER_COUNT; i++)
 162                 if (ciphers & (1 << i))
 163                         pos += sprintf(pos, "%s, ", IWINFO_CIPHER_NAMES[i]);
 164
 165         *(pos - 2) = 0;
 166
 167         return str;
 168 }
 169
 170 static char * format_enc_suites(int suites)
 171 {
 172         static char str[64] = { 0 };
 173         char *pos = str;
 174         int i;
 175
 176         for (i = 0; i < IWINFO_KMGMT_COUNT; i++)
 177                 if (suites & (1 << i))
 178                         pos += sprintf(pos, "%s/", IWINFO_KMGMT_NAMES[i]);
 179
 180         *(pos - 1) = 0;
 181
 182         return str;
 183 }
 184
 185 static char * format_encryption(struct iwinfo_crypto_entry *c)
 186 {
 187         static char buf[512];
 188         char *pos = buf;
 189         int i, n;
 190
 191         if (!c)
 192         {
 193                 snprintf(buf, sizeof(buf), "unknown");
 194         }
 195         else if (c->enabled)
 196         {
 197                 /* WEP */
 198                 if (c->auth_algs && !c->wpa_version)
 199                 {
 200                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 201                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 202                         {
 203                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 204                                         format_enc_ciphers(c->pair_ciphers));
 205                         }
 206                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 207                         {
 208                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 209                                         format_enc_ciphers(c->pair_ciphers));
 210                         }
 211                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 212                         {
 213                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 214                                         format_enc_ciphers(c->pair_ciphers));
 215                         }
 216                 }
 217
 218                 /* WPA */
 219                 else if (c->wpa_version)
 220                 {
 221                         for (i = 0, n = 0; i < 3; i++)
 222                                 if (c->wpa_version & (1 << i))
 223                                         n++;
 224
 225                         if (n > 1)
 226                                 pos += sprintf(pos, "mixed ");
 227
 228                         for (i = 0; i < 3; i++)
 229                                 if (c->wpa_version & (1 << i))
 230                                 {
 231                                         if (i)
 232                                                 pos += sprintf(pos, "WPA%d/", i + 1);
 233                                         else
 234                                                 pos += sprintf(pos, "WPA/");
 235                                 }
 236
 237                         pos--;
 238
 239                         sprintf(pos, " %s (%s)",
 240                                 format_enc_suites(c->auth_suites),
 241                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 242                 }
 243                 else
 244                 {
 245                         snprintf(buf, sizeof(buf), "none");
 246                 }
 247         }
 248         else
 249         {
 250                 snprintf(buf, sizeof(buf), "none");
 251         }
 252
 253         return buf;
 254 }
 255
 256 static char * format_hwmodes(int modes)
 257 {
 258         static char buf[32] = "802.11";
 259
 260         if (iwinfo_format_hwmodes(modes, buf + 6, sizeof(buf) - 6) < 1)
 261                 snprintf(buf, sizeof(buf), "unknown");
 262
 263         return buf;
 264 }
 265
 266 static char * format_assocrate(struct iwinfo_rate_entry *r)
 267 {
 268         static char buf[80];
 269         char *p = buf;
 270         int l = sizeof(buf);
 271
 272         if (r->rate <= 0)
 273         {
 274                 snprintf(buf, sizeof(buf), "unknown");
 275         }
 276         else
 277         {
 278                 p += snprintf(p, l, "%s", format_rate(r->rate));
 279                 l = sizeof(buf) - (p - buf);
 280
 281                 if (r->is_ht)
 282                 {
 283                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, r->mhz);
 284                         l = sizeof(buf) - (p - buf);
 285                 }
 286                 else if (r->is_vht)
 287                 {
 288                         p += snprintf(p, l, ", VHT-MCS %d, %dMHz", r->mcs, r->mhz);
 289                         l = sizeof(buf) - (p - buf);
 290
 291                         if (r->nss)
 292                         {
 293                                 p += snprintf(p, l, ", VHT-NSS %d", r->nss);
 294                                 l = sizeof(buf) - (p - buf);
 295                         }
 296                 }
 297                 else if (r->is_he)
 298                 {
 299                         p += snprintf(p, l, ", HE-MCS %d, %dMHz", r->mcs, r->mhz);
 300                         l = sizeof(buf) - (p - buf);
 301
 302                         p += snprintf(p, l, ", HE-NSS %d", r->nss);
 303                         l = sizeof(buf) - (p - buf);
 304
 305                         p += snprintf(p, l, ", HE-GI %d", r->he_gi);
 306                         l = sizeof(buf) - (p - buf);
 307
 308                         p += snprintf(p, l, ", HE-DCM %d", r->he_dcm);
 309                         l = sizeof(buf) - (p - buf);
 310                 }
 311         }
 312
 313         return buf;
 314 }
 315
 316 static const char* format_chan_width(bool vht, uint8_t width)
 317 {
 318         if (!vht && width < ARRAY_SIZE(ht_chan_width))
 319                 switch (ht_chan_width[width]) {
 320                         case 20: return "20 MHz";
 321                         case 2040: return "40 MHz or higher";
 322                 }
 323
 324         if (vht && width < ARRAY_SIZE(vht_chan_width))
 325                 switch (vht_chan_width[width]) {
 326                         case 40: return "20 or 40 MHz";
 327                         case 80: return "80 MHz";
 328                         case 8080: return "80+80 MHz";
 329                         case 160: return "160 MHz";
 330                 }
 331
 332         return "unknown";
 333 }
 334
 335
 336 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 337 {
 338         const char *type = iwinfo_type(ifname);
 339         return type ? type : "unknown";
 340 }
 341
 342 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 343 {
 344         static char buf[20];
 345         struct iwinfo_hardware_id ids;
 346
 347         if (!iw->hardware_id(ifname, (char *)&ids))
 348         {
 349                 if (strlen(ids.compatible) > 0)
 350                         snprintf(buf, sizeof(buf), "embedded");
 351                 else if (ids.vendor_id == 0 && ids.device_id == 0 &&
 352                          ids.subsystem_vendor_id != 0 && ids.subsystem_device_id != 0)
 353                         snprintf(buf, sizeof(buf), "USB %04X:%04X",
 354                                 ids.subsystem_vendor_id, ids.subsystem_device_id);
 355                 else
 356                         snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 357                                 ids.vendor_id, ids.device_id,
 358                                 ids.subsystem_vendor_id, ids.subsystem_device_id);
 359         }
 360         else
 361         {
 362                 snprintf(buf, sizeof(buf), "unknown");
 363         }
 364
 365         return buf;
 366 }
 367
 368 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 369 {
 370         static char buf[128];
 371
 372         if (iw->hardware_name(ifname, buf))
 373                 snprintf(buf, sizeof(buf), "unknown");
 374
 375         return buf;
 376 }
 377
 378 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 379 {
 380         int off;
 381         static char buf[12];
 382
 383         if (iw->txpower_offset(ifname, &off))
 384                 snprintf(buf, sizeof(buf), "unknown");
 385         else if (off != 0)
 386                 snprintf(buf, sizeof(buf), "%d dB", off);
 387         else
 388                 snprintf(buf, sizeof(buf), "none");
 389
 390         return buf;
 391 }
 392
 393 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 394 {
 395         int off;
 396         static char buf[12];
 397
 398         if (iw->frequency_offset(ifname, &off))
 399                 snprintf(buf, sizeof(buf), "unknown");
 400         else if (off != 0)
 401                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 402         else
 403                 snprintf(buf, sizeof(buf), "none");
 404
 405         return buf;
 406 }
 407
 408 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 409 {
 410         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 411
 412         if (iw->ssid(ifname, buf))
 413                 memset(buf, 0, sizeof(buf));
 414
 415         return format_ssid(buf);
 416 }
 417
 418 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 419 {
 420         static char buf[18] = { 0 };
 421
 422         if (iw->bssid(ifname, buf))
 423                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 424
 425         return buf;
 426 }
 427
 428 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 429 {
 430         int mode;
 431         static char buf[128];
 432
 433         if (iw->mode(ifname, &mode))
 434                 mode = IWINFO_OPMODE_UNKNOWN;
 435
 436         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 437
 438         return buf;
 439 }
 440
 441 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 442 {
 443         int ch;
 444         if (iw->channel(ifname, &ch))
 445                 ch = -1;
 446
 447         return format_channel(ch);
 448 }
 449
 450 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 451 {
 452         int ch;
 453         if (iw->center_chan1(ifname, &ch))
 454                 ch = -1;
 455
 456         return format_channel(ch);
 457 }
 458
 459 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 460 {
 461         int ch;
 462         if (iw->center_chan2(ifname, &ch))
 463                 ch = -1;
 464
 465         return format_channel(ch);
 466 }
 467
 468 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 469 {
 470         int freq;
 471         if (iw->frequency(ifname, &freq))
 472                 freq = -1;
 473
 474         return format_frequency(freq);
 475 }
 476
 477 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 478 {
 479         int pwr, off;
 480         if (iw->txpower_offset(ifname, &off))
 481                 off = 0;
 482
 483         if (iw->txpower(ifname, &pwr))
 484                 pwr = -1;
 485         else
 486                 pwr += off;
 487
 488         return format_txpower(pwr);
 489 }
 490
 491 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 492 {
 493         int qual;
 494         if (iw->quality(ifname, &qual))
 495                 qual = -1;
 496
 497         return format_quality(qual);
 498 }
 499
 500 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 501 {
 502         int qmax;
 503         if (iw->quality_max(ifname, &qmax))
 504                 qmax = -1;
 505
 506         return format_quality_max(qmax);
 507 }
 508
 509 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 510 {
 511         int sig;
 512         if (iw->signal(ifname, &sig))
 513                 sig = 0;
 514
 515         return format_signal(sig);
 516 }
 517
 518 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 519 {
 520         int noise;
 521         if (iw->noise(ifname, &noise))
 522                 noise = 0;
 523
 524         return format_noise(noise);
 525 }
 526
 527 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 528 {
 529         int rate;
 530         if (iw->bitrate(ifname, &rate))
 531                 rate = -1;
 532
 533         return format_rate(rate);
 534 }
 535
 536 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 537 {
 538         struct iwinfo_crypto_entry c = { 0 };
 539         if (iw->encryption(ifname, (char *)&c))
 540                 return format_encryption(NULL);
 541
 542         return format_encryption(&c);
 543 }
 544
 545 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 546 {
 547         int modes;
 548         if (iw->hwmodelist(ifname, &modes))
 549                 modes = -1;
 550
 551         return format_hwmodes(modes);
 552 }
 553
 554 static const char *print_htmode(const struct iwinfo_ops *iw, const char *ifname)
 555 {
 556         int mode;
 557         const char *name;
 558         if (iw->htmode(ifname, &mode))
 559                 mode = -1;
 560
 561         name = iwinfo_htmode_name(mode);
 562         if (name)
 563                 return name;
 564
 565         return "unknown";
 566 }
 567
 568 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 569 {
 570         int supp;
 571         static char buf[4];
 572
 573         if (iw->mbssid_support(ifname, &supp))
 574                 snprintf(buf, sizeof(buf), "no");
 575         else
 576                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 577
 578         return buf;
 579 }
 580
 581 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 582 {
 583         static char buf[32];
 584
 585         if (!iw->phyname(ifname, buf))
 586                 return buf;
 587
 588         return "?";
 589 }
 590
 591
 592 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 593 {
 594         printf("%-9s ESSID: %s\n",
 595                 ifname,
 596                 print_ssid(iw, ifname));
 597         printf("          Access Point: %s\n",
 598                 print_bssid(iw, ifname));
 599         printf("          Mode: %s  Channel: %s (%s)  HT Mode: %s\n",
 600                 print_mode(iw, ifname),
 601                 print_channel(iw, ifname),
 602                 print_frequency(iw, ifname),
 603                 print_htmode(iw, ifname));
 604         if (iw->center_chan1 != NULL) {
 605                 printf("          Center Channel 1: %s",
 606                         print_center_chan1(iw, ifname));
 607                 printf(" 2: %s\n", print_center_chan2(iw, ifname));
 608         }
 609         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 610                 print_txpower(iw, ifname),
 611                 print_quality(iw, ifname),
 612                 print_quality_max(iw, ifname));
 613         printf("          Signal: %s  Noise: %s\n",
 614                 print_signal(iw, ifname),
 615                 print_noise(iw, ifname));
 616         printf("          Bit Rate: %s\n",
 617                 print_rate(iw, ifname));
 618         printf("          Encryption: %s\n",
 619                 print_encryption(iw, ifname));
 620         printf("          Type: %s  HW Mode(s): %s\n",
 621                 print_type(iw, ifname),
 622                 print_hwmodes(iw, ifname));
 623         printf("          Hardware: %s [%s]\n",
 624                 print_hardware_id(iw, ifname),
 625                 print_hardware_name(iw, ifname));
 626         printf("          TX power offset: %s\n",
 627                 print_txpower_offset(iw, ifname));
 628         printf("          Frequency offset: %s\n",
 629                 print_frequency_offset(iw, ifname));
 630         printf("          Supports VAPs: %s  PHY name: %s\n",
 631                 print_mbssid_supp(iw, ifname),
 632                 print_phyname(iw, ifname));
 633 }
 634
 635
 636 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 637 {
 638         int i, x, len;
 639         char buf[IWINFO_BUFSIZE];
 640         struct iwinfo_scanlist_entry *e;
 641
 642         if (iw->scanlist(ifname, buf, &len))
 643         {
 644                 printf("Scanning not possible\n\n");
 645                 return;
 646         }
 647         else if (len <= 0)
 648         {
 649                 printf("No scan results\n\n");
 650                 return;
 651         }
 652
 653         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 654         {
 655                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 656
 657                 printf("Cell %02d - Address: %s\n",
 658                         x,
 659                         format_bssid(e->mac));
 660                 printf("          ESSID: %s\n",
 661                         format_ssid(e->ssid));
 662                 printf("          Mode: %s  Frequency: %s  Band: %s  Channel: %s\n",
 663                         IWINFO_OPMODE_NAMES[e->mode],
 664                         format_frequency(e->mhz),
 665                         format_band(e->band),
 666                         format_channel(e->channel));
 667                 printf("          Signal: %s  Quality: %s/%s\n",
 668                         format_signal(e->signal - 0x100),
 669                         format_quality(e->quality),
 670                         format_quality_max(e->quality_max));
 671                 printf("          Encryption: %s\n",
 672                         format_encryption(&e->crypto));
 673                 printf("          HT Operation:\n");
 674                 printf("                    Primary Channel: %d\n",
 675                         e->ht_chan_info.primary_chan);
 676                 printf("                    Secondary Channel Offset: %s\n",
 677                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 678                 printf("                    Channel Width: %s\n",
 679                         format_chan_width(false, e->ht_chan_info.chan_width));
 680
 681                 if (e->vht_chan_info.center_chan_1) {
 682                         printf("          VHT Operation:\n");
 683                         printf("                    Center Frequency 1: %d\n",
 684                                  e->vht_chan_info.center_chan_1);
 685                         printf("                    Center Frequency 2: %d\n",
 686                                  e->vht_chan_info.center_chan_2);
 687                         printf("                    Channel Width: %s\n",
 688                                 format_chan_width(true, e->vht_chan_info.chan_width));
 689                 }
 690
 691                 printf("\n");
 692         }
 693 }
 694
 695
 696 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 697 {
 698         int len, pwr, off, i;
 699         char buf[IWINFO_BUFSIZE];
 700         struct iwinfo_txpwrlist_entry *e;
 701
 702         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 703         {
 704                 printf("No TX power information available\n");
 705                 return;
 706         }
 707
 708         if (iw->txpower(ifname, &pwr))
 709                 pwr = -1;
 710
 711         if (iw->txpower_offset(ifname, &off))
 712                 off = 0;
 713
 714         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 715         {
 716                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 717
 718                 printf("%s%3d dBm (%4d mW)\n",
 719                         (pwr == e->dbm) ? "*" : " ",
 720                         e->dbm + off,
 721                         iwinfo_dbm2mw(e->dbm + off));
 722         }
 723 }
 724
 725
 726 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 727 {
 728         int i, len, freq;
 729         char buf[IWINFO_BUFSIZE];
 730         struct iwinfo_freqlist_entry *e;
 731
 732         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 733         {
 734                 printf("No frequency information available\n");
 735                 return;
 736         }
 737
 738         if (iw->frequency(ifname, &freq))
 739                 freq = -1;
 740
 741         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 742         {
 743                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 744
 745                 printf("%s %s (Band: %s, Channel %s)%s\n",
 746                         (freq == e->mhz) ? "*" : " ",
 747                         format_frequency(e->mhz),
 748                         format_band(e->band),
 749                         format_channel(e->channel),
 750                         e->restricted ? " [restricted]" : "");
 751         }
 752 }
 753
 754
 755 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 756 {
 757         int i, len;
 758         char buf[IWINFO_BUFSIZE];
 759         struct iwinfo_assoclist_entry *e;
 760
 761         if (iw->assoclist(ifname, buf, &len))
 762         {
 763                 printf("No information available\n");
 764                 return;
 765         }
 766         else if (len <= 0)
 767         {
 768                 printf("No station connected\n");
 769                 return;
 770         }
 771
 772         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 773         {
 774                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 775
 776                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 777                         format_bssid(e->mac),
 778                         format_signal(e->signal),
 779                         format_noise(e->noise),
 780                         (e->signal - e->noise),
 781                         e->inactive);
 782
 783                 printf("        RX: %-38s  %8d Pkts.\n",
 784                         format_assocrate(&e->rx_rate),
 785                         e->rx_packets
 786                 );
 787
 788                 printf("        TX: %-38s  %8d Pkts.\n",
 789                         format_assocrate(&e->tx_rate),
 790                         e->tx_packets
 791                 );
 792
 793                 printf("        expected throughput: %s\n\n",
 794                         format_rate(e->thr));
 795         }
 796 }
 797
 798
 799 static char * lookup_country(char *buf, int len, int iso3166)
 800 {
 801         int i;
 802         struct iwinfo_country_entry *c;
 803
 804         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 805         {
 806                 c = (struct iwinfo_country_entry *) &buf[i];
 807
 808                 if (c->iso3166 == iso3166)
 809                         return c->ccode;
 810         }
 811
 812         return NULL;
 813 }
 814
 815 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 816 {
 817         int len;
 818         char buf[IWINFO_BUFSIZE];
 819         char *ccode;
 820         char curcode[3];
 821         const struct iwinfo_iso3166_label *l;
 822
 823         if (iw->countrylist(ifname, buf, &len))
 824         {
 825                 printf("No country code information available\n");
 826                 return;
 827         }
 828
 829         if (iw->country(ifname, curcode))
 830                 memset(curcode, 0, sizeof(curcode));
 831
 832         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 833         {
 834                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 835                 {
 836                         printf("%s %4s  %c%c\n",
 837                                 strncmp(ccode, curcode, 2) ? " " : "*",
 838                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 839                 }
 840         }
 841 }
 842
 843 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 844 {
 845         int i, htmodes = 0;
 846
 847         if (iw->htmodelist(ifname, &htmodes))
 848         {
 849                 printf("No HT mode information available\n");
 850                 return;
 851         }
 852
 853         for (i = 0; i < IWINFO_HTMODE_COUNT; i++)
 854                 if (htmodes & (1 << i))
 855                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 856
 857         printf("\n");
 858 }
 859
 860 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 861 {
 862         char buf[IWINFO_BUFSIZE];
 863
 864         if (!iw->lookup_phy)
 865         {
 866                 fprintf(stderr, "Not supported\n");
 867                 return;
 868         }
 869
 870         if (iw->lookup_phy(section, buf))
 871         {
 872                 fprintf(stderr, "Phy not found\n");
 873                 return;
 874         }
 875
 876         printf("%s\n", buf);
 877 }
 878
 879
 880 static void lookup_path(const struct iwinfo_ops *iw, const char *phy)
 881 {
 882         const char *path;
 883
 884         if (!iw->phy_path || iw->phy_path(phy, &path) || !path)
 885                 return;
 886
 887         printf("%s\n", path);
 888 }
 889
 890 int main(int argc, char **argv)
 891 {
 892         int i, rv = 0;
 893         char *p;
 894         const struct iwinfo_ops *iw;
 895         glob_t globbuf;
 896
 897         if (argc > 1 && argc < 3)
 898         {
 899                 fprintf(stderr,
 900                         "Usage:\n"
 901                         "       iwinfo <device> info\n"
 902                         "       iwinfo <device> scan\n"
 903                         "       iwinfo <device> txpowerlist\n"
 904                         "       iwinfo <device> freqlist\n"
 905                         "       iwinfo <device> assoclist\n"
 906                         "       iwinfo <device> countrylist\n"
 907                         "       iwinfo <device> htmodelist\n"
 908                         "       iwinfo <backend> phyname <section>\n"
 909                 );
 910
 911                 return 1;
 912         }
 913
 914         if (argc == 1)
 915         {
 916                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 917
 918                 for (i = 0; i < globbuf.gl_pathc; i++)
 919                 {
 920                         p = strrchr(globbuf.gl_pathv[i], '/');
 921
 922                         if (!p)
 923                                 continue;
 924
 925                         iw = iwinfo_backend(++p);
 926
 927                         if (!iw)
 928                                 continue;
 929
 930                         print_info(iw, p);
 931                         printf("\n");
 932                 }
 933
 934                 globfree(&globbuf);
 935                 return 0;
 936         }
 937
 938         if (argc > 3)
 939         {
 940                 iw = iwinfo_backend_by_name(argv[1]);
 941
 942                 if (!iw)
 943                 {
 944                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 945                         rv = 1;
 946                 }
 947                 else
 948                 {
 949                         if (!strcmp(argv[2], "path")) {
 950                                 lookup_path(iw, argv[3]);
 951                                 return 0;
 952                         }
 953                         switch (argv[2][0])
 954                         {
 955                         case 'p':
 956                                 lookup_phy(iw, argv[3]);
 957                                 break;
 958
 959                         default:
 960                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 961                                 rv = 1;
 962                         }
 963                 }
 964         }
 965         else
 966         {
 967                 iw = iwinfo_backend(argv[1]);
 968
 969                 if (!iw)
 970                 {
 971                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 972                         rv = 1;
 973                 }
 974                 else
 975                 {
 976                         for (i = 2; i < argc; i++)
 977                         {
 978                                 switch(argv[i][0])
 979                                 {
 980                                 case 'i':
 981                                         print_info(iw, argv[1]);
 982                                         break;
 983
 984                                 case 's':
 985                                         print_scanlist(iw, argv[1]);
 986                                         break;
 987
 988                                 case 't':
 989                                         print_txpwrlist(iw, argv[1]);
 990                                         break;
 991
 992                                 case 'f':
 993                                         print_freqlist(iw, argv[1]);
 994                                         break;
 995
 996                                 case 'a':
 997                                         print_assoclist(iw, argv[1]);
 998                                         break;
 999
1000                                 case 'c':
1001                                         print_countrylist(iw, argv[1]);
1002                                         break;
1003
1004                                 case 'h':
1005                                         print_htmodelist(iw, argv[1]);
1006                                         break;
1007
1008                                 default:
1009                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
1010                                         rv = 1;
1011                                 }
1012                         }
1013                 }
1014         }
1015
1016         iwinfo_finish();
1017
1018         return rv;
1019 }