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 char * format_channel(int ch)
  48 {
  49         static char buf[16];
  50
  51         if (ch <= 0)
  52                 snprintf(buf, sizeof(buf), "unknown");
  53         else
  54                 snprintf(buf, sizeof(buf), "%d", ch);
  55
  56         return buf;
  57 }
  58
  59 static char * format_frequency(int freq)
  60 {
  61         static char buf[11];
  62
  63         if (freq <= 0)
  64                 snprintf(buf, sizeof(buf), "unknown");
  65         else
  66                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
  67
  68         return buf;
  69 }
  70
  71 static char * format_txpower(int pwr)
  72 {
  73         static char buf[16];
  74
  75         if (pwr < 0)
  76                 snprintf(buf, sizeof(buf), "unknown");
  77         else
  78                 snprintf(buf, sizeof(buf), "%d dBm", pwr);
  79
  80         return buf;
  81 }
  82
  83 static char * format_quality(int qual)
  84 {
  85         static char buf[16];
  86
  87         if (qual < 0)
  88                 snprintf(buf, sizeof(buf), "unknown");
  89         else
  90                 snprintf(buf, sizeof(buf), "%d", qual);
  91
  92         return buf;
  93 }
  94
  95 static char * format_quality_max(int qmax)
  96 {
  97         static char buf[16];
  98
  99         if (qmax < 0)
 100                 snprintf(buf, sizeof(buf), "unknown");
 101         else
 102                 snprintf(buf, sizeof(buf), "%d", qmax);
 103
 104         return buf;
 105 }
 106
 107 static char * format_signal(int sig)
 108 {
 109         static char buf[10];
 110
 111         if (!sig)
 112                 snprintf(buf, sizeof(buf), "unknown");
 113         else
 114                 snprintf(buf, sizeof(buf), "%d dBm", sig);
 115
 116         return buf;
 117 }
 118
 119 static char * format_noise(int noise)
 120 {
 121         static char buf[10];
 122
 123         if (!noise)
 124                 snprintf(buf, sizeof(buf), "unknown");
 125         else
 126                 snprintf(buf, sizeof(buf), "%d dBm", noise);
 127
 128         return buf;
 129 }
 130
 131 static char * format_rate(int rate)
 132 {
 133         static char buf[18];
 134
 135         if (rate <= 0)
 136                 snprintf(buf, sizeof(buf), "unknown");
 137         else
 138                 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
 139                         rate / 1000, (rate % 1000) / 100);
 140
 141         return buf;
 142 }
 143
 144 static char * format_enc_ciphers(int ciphers)
 145 {
 146         static char str[128] = { 0 };
 147         char *pos = str;
 148
 149         if (ciphers & IWINFO_CIPHER_WEP40)
 150                 pos += sprintf(pos, "WEP-40, ");
 151
 152         if (ciphers & IWINFO_CIPHER_WEP104)
 153                 pos += sprintf(pos, "WEP-104, ");
 154
 155         if (ciphers & IWINFO_CIPHER_TKIP)
 156                 pos += sprintf(pos, "TKIP, ");
 157
 158         if (ciphers & IWINFO_CIPHER_CCMP)
 159                 pos += sprintf(pos, "CCMP, ");
 160
 161         if (ciphers & IWINFO_CIPHER_CCMP256)
 162                 pos += sprintf(pos, "CCMP-256, ");
 163
 164         if (ciphers & IWINFO_CIPHER_GCMP)
 165                 pos += sprintf(pos, "GCMP, ");
 166
 167         if (ciphers & IWINFO_CIPHER_GCMP256)
 168                 pos += sprintf(pos, "GCMP-256, ");
 169
 170         if (ciphers & IWINFO_CIPHER_WRAP)
 171                 pos += sprintf(pos, "WRAP, ");
 172
 173         if (ciphers & IWINFO_CIPHER_AESOCB)
 174                 pos += sprintf(pos, "AES-OCB, ");
 175
 176         if (ciphers & IWINFO_CIPHER_CKIP)
 177                 pos += sprintf(pos, "CKIP, ");
 178
 179         if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
 180                 pos += sprintf(pos, "NONE, ");
 181
 182         *(pos - 2) = 0;
 183
 184         return str;
 185 }
 186
 187 static char * format_enc_suites(int suites)
 188 {
 189         static char str[64] = { 0 };
 190         char *pos = str;
 191
 192         if (suites & IWINFO_KMGMT_PSK)
 193                 pos += sprintf(pos, "PSK/");
 194
 195         if (suites & IWINFO_KMGMT_8021x)
 196                 pos += sprintf(pos, "802.1X/");
 197
 198         if (suites & IWINFO_KMGMT_SAE)
 199                 pos += sprintf(pos, "SAE/");
 200
 201         if (suites & IWINFO_KMGMT_OWE)
 202                 pos += sprintf(pos, "OWE/");
 203
 204         if (!suites || (suites & IWINFO_KMGMT_NONE))
 205                 pos += sprintf(pos, "NONE/");
 206
 207         *(pos - 1) = 0;
 208
 209         return str;
 210 }
 211
 212 static char * format_encryption(struct iwinfo_crypto_entry *c)
 213 {
 214         static char buf[512];
 215         char *pos = buf;
 216         int i, n;
 217
 218         if (!c)
 219         {
 220                 snprintf(buf, sizeof(buf), "unknown");
 221         }
 222         else if (c->enabled)
 223         {
 224                 /* WEP */
 225                 if (c->auth_algs && !c->wpa_version)
 226                 {
 227                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 228                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 229                         {
 230                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 231                                         format_enc_ciphers(c->pair_ciphers));
 232                         }
 233                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 234                         {
 235                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 236                                         format_enc_ciphers(c->pair_ciphers));
 237                         }
 238                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 239                         {
 240                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 241                                         format_enc_ciphers(c->pair_ciphers));
 242                         }
 243                 }
 244
 245                 /* WPA */
 246                 else if (c->wpa_version)
 247                 {
 248                         for (i = 0, n = 0; i < 3; i++)
 249                                 if (c->wpa_version & (1 << i))
 250                                         n++;
 251
 252                         if (n > 1)
 253                                 pos += sprintf(pos, "mixed ");
 254
 255                         for (i = 0; i < 3; i++)
 256                                 if (c->wpa_version & (1 << i))
 257                                 {
 258                                         if (i)
 259                                                 pos += sprintf(pos, "WPA%d/", i + 1);
 260                                         else
 261                                                 pos += sprintf(pos, "WPA/");
 262                                 }
 263
 264                         pos--;
 265
 266                         sprintf(pos, " %s (%s)",
 267                                 format_enc_suites(c->auth_suites),
 268                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 269                 }
 270                 else
 271                 {
 272                         snprintf(buf, sizeof(buf), "none");
 273                 }
 274         }
 275         else
 276         {
 277                 snprintf(buf, sizeof(buf), "none");
 278         }
 279
 280         return buf;
 281 }
 282
 283 static char * format_hwmodes(int modes)
 284 {
 285         static char buf[32] = "802.11";
 286
 287         if (iwinfo_format_hwmodes(modes, buf + 6, sizeof(buf) - 6) < 1)
 288                 snprintf(buf, sizeof(buf), "unknown");
 289
 290         return buf;
 291 }
 292
 293 static char * format_assocrate(struct iwinfo_rate_entry *r)
 294 {
 295         static char buf[80];
 296         char *p = buf;
 297         int l = sizeof(buf);
 298
 299         if (r->rate <= 0)
 300         {
 301                 snprintf(buf, sizeof(buf), "unknown");
 302         }
 303         else
 304         {
 305                 p += snprintf(p, l, "%s", format_rate(r->rate));
 306                 l = sizeof(buf) - (p - buf);
 307
 308                 if (r->is_ht)
 309                 {
 310                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, r->mhz);
 311                         l = sizeof(buf) - (p - buf);
 312                 }
 313                 else if (r->is_vht)
 314                 {
 315                         p += snprintf(p, l, ", VHT-MCS %d, %dMHz", r->mcs, r->mhz);
 316                         l = sizeof(buf) - (p - buf);
 317
 318                         if (r->nss)
 319                         {
 320                                 p += snprintf(p, l, ", VHT-NSS %d", r->nss);
 321                                 l = sizeof(buf) - (p - buf);
 322                         }
 323                 }
 324                 else if (r->is_he)
 325                 {
 326                         p += snprintf(p, l, ", HE-MCS %d, %dMHz", r->mcs, r->mhz);
 327                         l = sizeof(buf) - (p - buf);
 328
 329                         p += snprintf(p, l, ", HE-NSS %d", r->nss);
 330                         l = sizeof(buf) - (p - buf);
 331
 332                         p += snprintf(p, l, ", HE-GI %d", r->he_gi);
 333                         l = sizeof(buf) - (p - buf);
 334
 335                         p += snprintf(p, l, ", HE-DCM %d", r->he_dcm);
 336                         l = sizeof(buf) - (p - buf);
 337                 }
 338         }
 339
 340         return buf;
 341 }
 342
 343 static const char* format_chan_width(bool vht, uint8_t width)
 344 {
 345         if (!vht && width < ARRAY_SIZE(ht_chan_width))
 346                 switch (ht_chan_width[width]) {
 347                         case 20: return "20 MHz";
 348                         case 2040: return "40 MHz or higher";
 349                 }
 350
 351         if (vht && width < ARRAY_SIZE(vht_chan_width))
 352                 switch (vht_chan_width[width]) {
 353                         case 40: return "20 or 40 MHz";
 354                         case 80: return "80 MHz";
 355                         case 8080: return "80+80 MHz";
 356                         case 160: return "160 MHz";
 357                 }
 358
 359         return "unknown";
 360 }
 361
 362
 363 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 364 {
 365         const char *type = iwinfo_type(ifname);
 366         return type ? type : "unknown";
 367 }
 368
 369 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 370 {
 371         static char buf[20];
 372         struct iwinfo_hardware_id ids;
 373
 374         if (!iw->hardware_id(ifname, (char *)&ids))
 375         {
 376                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 377                         ids.vendor_id, ids.device_id,
 378                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 379         }
 380         else
 381         {
 382                 snprintf(buf, sizeof(buf), "unknown");
 383         }
 384
 385         return buf;
 386 }
 387
 388 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 389 {
 390         static char buf[128];
 391
 392         if (iw->hardware_name(ifname, buf))
 393                 snprintf(buf, sizeof(buf), "unknown");
 394
 395         return buf;
 396 }
 397
 398 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 399 {
 400         int off;
 401         static char buf[12];
 402
 403         if (iw->txpower_offset(ifname, &off))
 404                 snprintf(buf, sizeof(buf), "unknown");
 405         else if (off != 0)
 406                 snprintf(buf, sizeof(buf), "%d dB", off);
 407         else
 408                 snprintf(buf, sizeof(buf), "none");
 409
 410         return buf;
 411 }
 412
 413 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 414 {
 415         int off;
 416         static char buf[12];
 417
 418         if (iw->frequency_offset(ifname, &off))
 419                 snprintf(buf, sizeof(buf), "unknown");
 420         else if (off != 0)
 421                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 422         else
 423                 snprintf(buf, sizeof(buf), "none");
 424
 425         return buf;
 426 }
 427
 428 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 429 {
 430         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 431
 432         if (iw->ssid(ifname, buf))
 433                 memset(buf, 0, sizeof(buf));
 434
 435         return format_ssid(buf);
 436 }
 437
 438 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 439 {
 440         static char buf[18] = { 0 };
 441
 442         if (iw->bssid(ifname, buf))
 443                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 444
 445         return buf;
 446 }
 447
 448 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 449 {
 450         int mode;
 451         static char buf[128];
 452
 453         if (iw->mode(ifname, &mode))
 454                 mode = IWINFO_OPMODE_UNKNOWN;
 455
 456         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 457
 458         return buf;
 459 }
 460
 461 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 462 {
 463         int ch;
 464         if (iw->channel(ifname, &ch))
 465                 ch = -1;
 466
 467         return format_channel(ch);
 468 }
 469
 470 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 471 {
 472         int ch;
 473         if (iw->center_chan1(ifname, &ch))
 474                 ch = -1;
 475
 476         return format_channel(ch);
 477 }
 478
 479 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 480 {
 481         int ch;
 482         if (iw->center_chan2(ifname, &ch))
 483                 ch = -1;
 484
 485         return format_channel(ch);
 486 }
 487
 488 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 489 {
 490         int freq;
 491         if (iw->frequency(ifname, &freq))
 492                 freq = -1;
 493
 494         return format_frequency(freq);
 495 }
 496
 497 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 498 {
 499         int pwr, off;
 500         if (iw->txpower_offset(ifname, &off))
 501                 off = 0;
 502
 503         if (iw->txpower(ifname, &pwr))
 504                 pwr = -1;
 505         else
 506                 pwr += off;
 507
 508         return format_txpower(pwr);
 509 }
 510
 511 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 512 {
 513         int qual;
 514         if (iw->quality(ifname, &qual))
 515                 qual = -1;
 516
 517         return format_quality(qual);
 518 }
 519
 520 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 521 {
 522         int qmax;
 523         if (iw->quality_max(ifname, &qmax))
 524                 qmax = -1;
 525
 526         return format_quality_max(qmax);
 527 }
 528
 529 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 530 {
 531         int sig;
 532         if (iw->signal(ifname, &sig))
 533                 sig = 0;
 534
 535         return format_signal(sig);
 536 }
 537
 538 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 539 {
 540         int noise;
 541         if (iw->noise(ifname, &noise))
 542                 noise = 0;
 543
 544         return format_noise(noise);
 545 }
 546
 547 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 548 {
 549         int rate;
 550         if (iw->bitrate(ifname, &rate))
 551                 rate = -1;
 552
 553         return format_rate(rate);
 554 }
 555
 556 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 557 {
 558         struct iwinfo_crypto_entry c = { 0 };
 559         if (iw->encryption(ifname, (char *)&c))
 560                 return format_encryption(NULL);
 561
 562         return format_encryption(&c);
 563 }
 564
 565 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 566 {
 567         int modes;
 568         if (iw->hwmodelist(ifname, &modes))
 569                 modes = -1;
 570
 571         return format_hwmodes(modes);
 572 }
 573
 574 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 575 {
 576         int supp;
 577         static char buf[4];
 578
 579         if (iw->mbssid_support(ifname, &supp))
 580                 snprintf(buf, sizeof(buf), "no");
 581         else
 582                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 583
 584         return buf;
 585 }
 586
 587 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 588 {
 589         static char buf[32];
 590
 591         if (!iw->phyname(ifname, buf))
 592                 return buf;
 593
 594         return "?";
 595 }
 596
 597
 598 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 599 {
 600         printf("%-9s ESSID: %s\n",
 601                 ifname,
 602                 print_ssid(iw, ifname));
 603         printf("          Access Point: %s\n",
 604                 print_bssid(iw, ifname));
 605         printf("          Mode: %s  Channel: %s (%s)\n",
 606                 print_mode(iw, ifname),
 607                 print_channel(iw, ifname),
 608                 print_frequency(iw, ifname));
 609         if (iw->center_chan1 != NULL) {
 610                 printf("          Center Channel 1: %s",
 611                         print_center_chan1(iw, ifname));
 612                 printf(" 2: %s\n", print_center_chan2(iw, ifname));
 613         }
 614         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 615                 print_txpower(iw, ifname),
 616                 print_quality(iw, ifname),
 617                 print_quality_max(iw, ifname));
 618         printf("          Signal: %s  Noise: %s\n",
 619                 print_signal(iw, ifname),
 620                 print_noise(iw, ifname));
 621         printf("          Bit Rate: %s\n",
 622                 print_rate(iw, ifname));
 623         printf("          Encryption: %s\n",
 624                 print_encryption(iw, ifname));
 625         printf("          Type: %s  HW Mode(s): %s\n",
 626                 print_type(iw, ifname),
 627                 print_hwmodes(iw, ifname));
 628         printf("          Hardware: %s [%s]\n",
 629                 print_hardware_id(iw, ifname),
 630                 print_hardware_name(iw, ifname));
 631         printf("          TX power offset: %s\n",
 632                 print_txpower_offset(iw, ifname));
 633         printf("          Frequency offset: %s\n",
 634                 print_frequency_offset(iw, ifname));
 635         printf("          Supports VAPs: %s  PHY name: %s\n",
 636                 print_mbssid_supp(iw, ifname),
 637                 print_phyname(iw, ifname));
 638 }
 639
 640
 641 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 642 {
 643         int i, x, len;
 644         char buf[IWINFO_BUFSIZE];
 645         struct iwinfo_scanlist_entry *e;
 646
 647         if (iw->scanlist(ifname, buf, &len))
 648         {
 649                 printf("Scanning not possible\n\n");
 650                 return;
 651         }
 652         else if (len <= 0)
 653         {
 654                 printf("No scan results\n\n");
 655                 return;
 656         }
 657
 658         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 659         {
 660                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 661
 662                 printf("Cell %02d - Address: %s\n",
 663                         x,
 664                         format_bssid(e->mac));
 665                 printf("          ESSID: %s\n",
 666                         format_ssid(e->ssid));
 667                 printf("          Mode: %s  Channel: %s\n",
 668                         IWINFO_OPMODE_NAMES[e->mode],
 669                         format_channel(e->channel));
 670                 printf("          Signal: %s  Quality: %s/%s\n",
 671                         format_signal(e->signal - 0x100),
 672                         format_quality(e->quality),
 673                         format_quality_max(e->quality_max));
 674                 printf("          Encryption: %s\n",
 675                         format_encryption(&e->crypto));
 676                 printf("          HT Operation:\n");
 677                 printf("                    Primary Channel: %d\n",
 678                         e->ht_chan_info.primary_chan);
 679                 printf("                    Secondary Channel Offset: %s\n",
 680                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 681                 printf("                    Channel Width: %s\n",
 682                         format_chan_width(false, e->ht_chan_info.chan_width));
 683
 684                 if (e->vht_chan_info.center_chan_1) {
 685                         printf("          VHT Operation:\n");
 686                         printf("                    Center Frequency 1: %d\n",
 687                                  e->vht_chan_info.center_chan_1);
 688                         printf("                    Center Frequency 2: %d\n",
 689                                  e->vht_chan_info.center_chan_2);
 690                         printf("                    Channel Width: %s\n",
 691                                 format_chan_width(true, e->vht_chan_info.chan_width));
 692                 }
 693
 694                 printf("\n");
 695         }
 696 }
 697
 698
 699 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 700 {
 701         int len, pwr, off, i;
 702         char buf[IWINFO_BUFSIZE];
 703         struct iwinfo_txpwrlist_entry *e;
 704
 705         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 706         {
 707                 printf("No TX power information available\n");
 708                 return;
 709         }
 710
 711         if (iw->txpower(ifname, &pwr))
 712                 pwr = -1;
 713
 714         if (iw->txpower_offset(ifname, &off))
 715                 off = 0;
 716
 717         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 718         {
 719                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 720
 721                 printf("%s%3d dBm (%4d mW)\n",
 722                         (pwr == e->dbm) ? "*" : " ",
 723                         e->dbm + off,
 724                         iwinfo_dbm2mw(e->dbm + off));
 725         }
 726 }
 727
 728
 729 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 730 {
 731         int i, len, freq;
 732         char buf[IWINFO_BUFSIZE];
 733         struct iwinfo_freqlist_entry *e;
 734
 735         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 736         {
 737                 printf("No frequency information available\n");
 738                 return;
 739         }
 740
 741         if (iw->frequency(ifname, &freq))
 742                 freq = -1;
 743
 744         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 745         {
 746                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 747
 748                 printf("%s %s (Channel %s)%s\n",
 749                         (freq == e->mhz) ? "*" : " ",
 750                         format_frequency(e->mhz),
 751                         format_channel(e->channel),
 752                         e->restricted ? " [restricted]" : "");
 753         }
 754 }
 755
 756
 757 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 758 {
 759         int i, len;
 760         char buf[IWINFO_BUFSIZE];
 761         struct iwinfo_assoclist_entry *e;
 762
 763         if (iw->assoclist(ifname, buf, &len))
 764         {
 765                 printf("No information available\n");
 766                 return;
 767         }
 768         else if (len <= 0)
 769         {
 770                 printf("No station connected\n");
 771                 return;
 772         }
 773
 774         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 775         {
 776                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 777
 778                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 779                         format_bssid(e->mac),
 780                         format_signal(e->signal),
 781                         format_noise(e->noise),
 782                         (e->signal - e->noise),
 783                         e->inactive);
 784
 785                 printf("        RX: %-38s  %8d Pkts.\n",
 786                         format_assocrate(&e->rx_rate),
 787                         e->rx_packets
 788                 );
 789
 790                 printf("        TX: %-38s  %8d Pkts.\n",
 791                         format_assocrate(&e->tx_rate),
 792                         e->tx_packets
 793                 );
 794
 795                 printf("        expected throughput: %s\n\n",
 796                         format_rate(e->thr));
 797         }
 798 }
 799
 800
 801 static char * lookup_country(char *buf, int len, int iso3166)
 802 {
 803         int i;
 804         struct iwinfo_country_entry *c;
 805
 806         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 807         {
 808                 c = (struct iwinfo_country_entry *) &buf[i];
 809
 810                 if (c->iso3166 == iso3166)
 811                         return c->ccode;
 812         }
 813
 814         return NULL;
 815 }
 816
 817 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 818 {
 819         int len;
 820         char buf[IWINFO_BUFSIZE];
 821         char *ccode;
 822         char curcode[3];
 823         const struct iwinfo_iso3166_label *l;
 824
 825         if (iw->countrylist(ifname, buf, &len))
 826         {
 827                 printf("No country code information available\n");
 828                 return;
 829         }
 830
 831         if (iw->country(ifname, curcode))
 832                 memset(curcode, 0, sizeof(curcode));
 833
 834         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 835         {
 836                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 837                 {
 838                         printf("%s %4s  %c%c\n",
 839                                 strncmp(ccode, curcode, 2) ? " " : "*",
 840                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 841                 }
 842         }
 843 }
 844
 845 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 846 {
 847         int i, htmodes = 0;
 848
 849         if (iw->htmodelist(ifname, &htmodes))
 850         {
 851                 printf("No HT mode information available\n");
 852                 return;
 853         }
 854
 855         for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
 856                 if (htmodes & (1 << i))
 857                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 858
 859         printf("\n");
 860 }
 861
 862 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 863 {
 864         char buf[IWINFO_BUFSIZE];
 865
 866         if (!iw->lookup_phy)
 867         {
 868                 fprintf(stderr, "Not supported\n");
 869                 return;
 870         }
 871
 872         if (iw->lookup_phy(section, buf))
 873         {
 874                 fprintf(stderr, "Phy not found\n");
 875                 return;
 876         }
 877
 878         printf("%s\n", buf);
 879 }
 880
 881
 882 static void lookup_path(const struct iwinfo_ops *iw, const char *phy)
 883 {
 884         const char *path;
 885
 886         if (!iw->phy_path || iw->phy_path(phy, &path) || !path)
 887                 return;
 888
 889         printf("%s\n", path);
 890 }
 891
 892 int main(int argc, char **argv)
 893 {
 894         int i, rv = 0;
 895         char *p;
 896         const struct iwinfo_ops *iw;
 897         glob_t globbuf;
 898
 899         if (argc > 1 && argc < 3)
 900         {
 901                 fprintf(stderr,
 902                         "Usage:\n"
 903                         "       iwinfo <device> info\n"
 904                         "       iwinfo <device> scan\n"
 905                         "       iwinfo <device> txpowerlist\n"
 906                         "       iwinfo <device> freqlist\n"
 907                         "       iwinfo <device> assoclist\n"
 908                         "       iwinfo <device> countrylist\n"
 909                         "       iwinfo <device> htmodelist\n"
 910                         "       iwinfo <backend> phyname <section>\n"
 911                 );
 912
 913                 return 1;
 914         }
 915
 916         if (argc == 1)
 917         {
 918                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 919
 920                 for (i = 0; i < globbuf.gl_pathc; i++)
 921                 {
 922                         p = strrchr(globbuf.gl_pathv[i], '/');
 923
 924                         if (!p)
 925                                 continue;
 926
 927                         iw = iwinfo_backend(++p);
 928
 929                         if (!iw)
 930                                 continue;
 931
 932                         print_info(iw, p);
 933                         printf("\n");
 934                 }
 935
 936                 globfree(&globbuf);
 937                 return 0;
 938         }
 939
 940         if (argc > 3)
 941         {
 942                 iw = iwinfo_backend_by_name(argv[1]);
 943
 944                 if (!iw)
 945                 {
 946                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 947                         rv = 1;
 948                 }
 949                 else
 950                 {
 951                         if (!strcmp(argv[2], "path")) {
 952                                 lookup_path(iw, argv[3]);
 953                                 return 0;
 954                         }
 955                         switch (argv[2][0])
 956                         {
 957                         case 'p':
 958                                 lookup_phy(iw, argv[3]);
 959                                 break;
 960
 961                         default:
 962                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 963                                 rv = 1;
 964                         }
 965                 }
 966         }
 967         else
 968         {
 969                 iw = iwinfo_backend(argv[1]);
 970
 971                 if (!iw)
 972                 {
 973                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 974                         rv = 1;
 975                 }
 976                 else
 977                 {
 978                         for (i = 2; i < argc; i++)
 979                         {
 980                                 switch(argv[i][0])
 981                                 {
 982                                 case 'i':
 983                                         print_info(iw, argv[1]);
 984                                         break;
 985
 986                                 case 's':
 987                                         print_scanlist(iw, argv[1]);
 988                                         break;
 989
 990                                 case 't':
 991                                         print_txpwrlist(iw, argv[1]);
 992                                         break;
 993
 994                                 case 'f':
 995                                         print_freqlist(iw, argv[1]);
 996                                         break;
 997
 998                                 case 'a':
 999                                         print_assoclist(iw, argv[1]);
1000                                         break;
1001
1002                                 case 'c':
1003                                         print_countrylist(iw, argv[1]);
1004                                         break;
1005
1006                                 case 'h':
1007                                         print_htmodelist(iw, argv[1]);
1008                                         break;
1009
1010                                 default:
1011                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
1012                                         rv = 1;
1013                                 }
1014                         }
1015                 }
1016         }
1017
1018         iwinfo_finish();
1019
1020         return rv;
1021 }