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(uint16_t width)
 344 {
 345         switch (width) {
 346                 case 20: return "20 MHz";
 347                 case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
 348                 case 40: return "40 MHz or lower";
 349                 case 80: return "80 MHz";
 350                 case 8080: return "80+80 MHz";
 351                 case 160: return "160 MHz";
 352         }
 353
 354         return "unknown";
 355 }
 356
 357
 358 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 359 {
 360         const char *type = iwinfo_type(ifname);
 361         return type ? type : "unknown";
 362 }
 363
 364 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 365 {
 366         static char buf[20];
 367         struct iwinfo_hardware_id ids;
 368
 369         if (!iw->hardware_id(ifname, (char *)&ids))
 370         {
 371                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 372                         ids.vendor_id, ids.device_id,
 373                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 374         }
 375         else
 376         {
 377                 snprintf(buf, sizeof(buf), "unknown");
 378         }
 379
 380         return buf;
 381 }
 382
 383 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 384 {
 385         static char buf[128];
 386
 387         if (iw->hardware_name(ifname, buf))
 388                 snprintf(buf, sizeof(buf), "unknown");
 389
 390         return buf;
 391 }
 392
 393 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 394 {
 395         int off;
 396         static char buf[12];
 397
 398         if (iw->txpower_offset(ifname, &off))
 399                 snprintf(buf, sizeof(buf), "unknown");
 400         else if (off != 0)
 401                 snprintf(buf, sizeof(buf), "%d dB", off);
 402         else
 403                 snprintf(buf, sizeof(buf), "none");
 404
 405         return buf;
 406 }
 407
 408 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 409 {
 410         int off;
 411         static char buf[12];
 412
 413         if (iw->frequency_offset(ifname, &off))
 414                 snprintf(buf, sizeof(buf), "unknown");
 415         else if (off != 0)
 416                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 417         else
 418                 snprintf(buf, sizeof(buf), "none");
 419
 420         return buf;
 421 }
 422
 423 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 424 {
 425         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 426
 427         if (iw->ssid(ifname, buf))
 428                 memset(buf, 0, sizeof(buf));
 429
 430         return format_ssid(buf);
 431 }
 432
 433 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 434 {
 435         static char buf[18] = { 0 };
 436
 437         if (iw->bssid(ifname, buf))
 438                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 439
 440         return buf;
 441 }
 442
 443 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 444 {
 445         int mode;
 446         static char buf[128];
 447
 448         if (iw->mode(ifname, &mode))
 449                 mode = IWINFO_OPMODE_UNKNOWN;
 450
 451         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 452
 453         return buf;
 454 }
 455
 456 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 457 {
 458         int ch;
 459         if (iw->channel(ifname, &ch))
 460                 ch = -1;
 461
 462         return format_channel(ch);
 463 }
 464
 465 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 466 {
 467         int ch;
 468         if (iw->center_chan1(ifname, &ch))
 469                 ch = -1;
 470
 471         return format_channel(ch);
 472 }
 473
 474 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 475 {
 476         int ch;
 477         if (iw->center_chan2(ifname, &ch))
 478                 ch = -1;
 479
 480         return format_channel(ch);
 481 }
 482
 483 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 484 {
 485         int freq;
 486         if (iw->frequency(ifname, &freq))
 487                 freq = -1;
 488
 489         return format_frequency(freq);
 490 }
 491
 492 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 493 {
 494         int pwr, off;
 495         if (iw->txpower_offset(ifname, &off))
 496                 off = 0;
 497
 498         if (iw->txpower(ifname, &pwr))
 499                 pwr = -1;
 500         else
 501                 pwr += off;
 502
 503         return format_txpower(pwr);
 504 }
 505
 506 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 507 {
 508         int qual;
 509         if (iw->quality(ifname, &qual))
 510                 qual = -1;
 511
 512         return format_quality(qual);
 513 }
 514
 515 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 516 {
 517         int qmax;
 518         if (iw->quality_max(ifname, &qmax))
 519                 qmax = -1;
 520
 521         return format_quality_max(qmax);
 522 }
 523
 524 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 525 {
 526         int sig;
 527         if (iw->signal(ifname, &sig))
 528                 sig = 0;
 529
 530         return format_signal(sig);
 531 }
 532
 533 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 534 {
 535         int noise;
 536         if (iw->noise(ifname, &noise))
 537                 noise = 0;
 538
 539         return format_noise(noise);
 540 }
 541
 542 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 543 {
 544         int rate;
 545         if (iw->bitrate(ifname, &rate))
 546                 rate = -1;
 547
 548         return format_rate(rate);
 549 }
 550
 551 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 552 {
 553         struct iwinfo_crypto_entry c = { 0 };
 554         if (iw->encryption(ifname, (char *)&c))
 555                 return format_encryption(NULL);
 556
 557         return format_encryption(&c);
 558 }
 559
 560 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 561 {
 562         int modes;
 563         if (iw->hwmodelist(ifname, &modes))
 564                 modes = -1;
 565
 566         return format_hwmodes(modes);
 567 }
 568
 569 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 570 {
 571         int supp;
 572         static char buf[4];
 573
 574         if (iw->mbssid_support(ifname, &supp))
 575                 snprintf(buf, sizeof(buf), "no");
 576         else
 577                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 578
 579         return buf;
 580 }
 581
 582 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 583 {
 584         static char buf[32];
 585
 586         if (!iw->phyname(ifname, buf))
 587                 return buf;
 588
 589         return "?";
 590 }
 591
 592
 593 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 594 {
 595         printf("%-9s ESSID: %s\n",
 596                 ifname,
 597                 print_ssid(iw, ifname));
 598         printf("          Access Point: %s\n",
 599                 print_bssid(iw, ifname));
 600         printf("          Mode: %s  Channel: %s (%s)\n",
 601                 print_mode(iw, ifname),
 602                 print_channel(iw, ifname),
 603                 print_frequency(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  Channel: %s\n",
 663                         IWINFO_OPMODE_NAMES[e->mode],
 664                         format_channel(e->channel));
 665                 printf("          Signal: %s  Quality: %s/%s\n",
 666                         format_signal(e->signal - 0x100),
 667                         format_quality(e->quality),
 668                         format_quality_max(e->quality_max));
 669                 printf("          Encryption: %s\n",
 670                         format_encryption(&e->crypto));
 671                 printf("          HT Operation:\n");
 672                 printf("                    Primary Channel: %d\n",
 673                         e->ht_chan_info.primary_chan);
 674                 printf("                    Secondary Channel Offset: %s\n",
 675                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 676                 printf("                    Channel Width: %s\n",
 677                         format_chan_width(e->ht_chan_info.chan_width));
 678
 679                 if (e->vht_chan_info.center_chan_1) {
 680                         printf("          VHT Operation:\n");
 681                         printf("                    Channel Width: %s\n",
 682                                 format_chan_width(e->vht_chan_info.chan_width));
 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                 }
 688
 689                 printf("\n");
 690         }
 691 }
 692
 693
 694 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 695 {
 696         int len, pwr, off, i;
 697         char buf[IWINFO_BUFSIZE];
 698         struct iwinfo_txpwrlist_entry *e;
 699
 700         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 701         {
 702                 printf("No TX power information available\n");
 703                 return;
 704         }
 705
 706         if (iw->txpower(ifname, &pwr))
 707                 pwr = -1;
 708
 709         if (iw->txpower_offset(ifname, &off))
 710                 off = 0;
 711
 712         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 713         {
 714                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 715
 716                 printf("%s%3d dBm (%4d mW)\n",
 717                         (pwr == e->dbm) ? "*" : " ",
 718                         e->dbm + off,
 719                         iwinfo_dbm2mw(e->dbm + off));
 720         }
 721 }
 722
 723
 724 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 725 {
 726         int i, len, freq;
 727         char buf[IWINFO_BUFSIZE];
 728         struct iwinfo_freqlist_entry *e;
 729
 730         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 731         {
 732                 printf("No frequency information available\n");
 733                 return;
 734         }
 735
 736         if (iw->frequency(ifname, &freq))
 737                 freq = -1;
 738
 739         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 740         {
 741                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 742
 743                 printf("%s %s (Channel %s)%s\n",
 744                         (freq == e->mhz) ? "*" : " ",
 745                         format_frequency(e->mhz),
 746                         format_channel(e->channel),
 747                         e->restricted ? " [restricted]" : "");
 748         }
 749 }
 750
 751
 752 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 753 {
 754         int i, len;
 755         char buf[IWINFO_BUFSIZE];
 756         struct iwinfo_assoclist_entry *e;
 757
 758         if (iw->assoclist(ifname, buf, &len))
 759         {
 760                 printf("No information available\n");
 761                 return;
 762         }
 763         else if (len <= 0)
 764         {
 765                 printf("No station connected\n");
 766                 return;
 767         }
 768
 769         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 770         {
 771                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 772
 773                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 774                         format_bssid(e->mac),
 775                         format_signal(e->signal),
 776                         format_noise(e->noise),
 777                         (e->signal - e->noise),
 778                         e->inactive);
 779
 780                 printf("        RX: %-38s  %8d Pkts.\n",
 781                         format_assocrate(&e->rx_rate),
 782                         e->rx_packets
 783                 );
 784
 785                 printf("        TX: %-38s  %8d Pkts.\n",
 786                         format_assocrate(&e->tx_rate),
 787                         e->tx_packets
 788                 );
 789
 790                 printf("        expected throughput: %s\n\n",
 791                         format_rate(e->thr));
 792         }
 793 }
 794
 795
 796 static char * lookup_country(char *buf, int len, int iso3166)
 797 {
 798         int i;
 799         struct iwinfo_country_entry *c;
 800
 801         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 802         {
 803                 c = (struct iwinfo_country_entry *) &buf[i];
 804
 805                 if (c->iso3166 == iso3166)
 806                         return c->ccode;
 807         }
 808
 809         return NULL;
 810 }
 811
 812 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 813 {
 814         int len;
 815         char buf[IWINFO_BUFSIZE];
 816         char *ccode;
 817         char curcode[3];
 818         const struct iwinfo_iso3166_label *l;
 819
 820         if (iw->countrylist(ifname, buf, &len))
 821         {
 822                 printf("No country code information available\n");
 823                 return;
 824         }
 825
 826         if (iw->country(ifname, curcode))
 827                 memset(curcode, 0, sizeof(curcode));
 828
 829         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 830         {
 831                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 832                 {
 833                         printf("%s %4s  %c%c\n",
 834                                 strncmp(ccode, curcode, 2) ? " " : "*",
 835                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 836                 }
 837         }
 838 }
 839
 840 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 841 {
 842         int i, htmodes = 0;
 843
 844         if (iw->htmodelist(ifname, &htmodes))
 845         {
 846                 printf("No HT mode information available\n");
 847                 return;
 848         }
 849
 850         for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
 851                 if (htmodes & (1 << i))
 852                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 853
 854         printf("\n");
 855 }
 856
 857 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 858 {
 859         char buf[IWINFO_BUFSIZE];
 860
 861         if (!iw->lookup_phy)
 862         {
 863                 fprintf(stderr, "Not supported\n");
 864                 return;
 865         }
 866
 867         if (iw->lookup_phy(section, buf))
 868         {
 869                 fprintf(stderr, "Phy not found\n");
 870                 return;
 871         }
 872
 873         printf("%s\n", buf);
 874 }
 875
 876
 877 static void lookup_path(const struct iwinfo_ops *iw, const char *phy)
 878 {
 879         const char *path;
 880
 881         if (!iw->phy_path || iw->phy_path(phy, &path) || !path)
 882                 return;
 883
 884         printf("%s\n", path);
 885 }
 886
 887 int main(int argc, char **argv)
 888 {
 889         int i, rv = 0;
 890         char *p;
 891         const struct iwinfo_ops *iw;
 892         glob_t globbuf;
 893
 894         if (argc > 1 && argc < 3)
 895         {
 896                 fprintf(stderr,
 897                         "Usage:\n"
 898                         "       iwinfo <device> info\n"
 899                         "       iwinfo <device> scan\n"
 900                         "       iwinfo <device> txpowerlist\n"
 901                         "       iwinfo <device> freqlist\n"
 902                         "       iwinfo <device> assoclist\n"
 903                         "       iwinfo <device> countrylist\n"
 904                         "       iwinfo <device> htmodelist\n"
 905                         "       iwinfo <backend> phyname <section>\n"
 906                 );
 907
 908                 return 1;
 909         }
 910
 911         if (argc == 1)
 912         {
 913                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 914
 915                 for (i = 0; i < globbuf.gl_pathc; i++)
 916                 {
 917                         p = strrchr(globbuf.gl_pathv[i], '/');
 918
 919                         if (!p)
 920                                 continue;
 921
 922                         iw = iwinfo_backend(++p);
 923
 924                         if (!iw)
 925                                 continue;
 926
 927                         print_info(iw, p);
 928                         printf("\n");
 929                 }
 930
 931                 globfree(&globbuf);
 932                 return 0;
 933         }
 934
 935         if (argc > 3)
 936         {
 937                 iw = iwinfo_backend_by_name(argv[1]);
 938
 939                 if (!iw)
 940                 {
 941                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 942                         rv = 1;
 943                 }
 944                 else
 945                 {
 946                         if (!strcmp(argv[2], "path")) {
 947                                 lookup_path(iw, argv[3]);
 948                                 return 0;
 949                         }
 950                         switch (argv[2][0])
 951                         {
 952                         case 'p':
 953                                 lookup_phy(iw, argv[3]);
 954                                 break;
 955
 956                         default:
 957                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 958                                 rv = 1;
 959                         }
 960                 }
 961         }
 962         else
 963         {
 964                 iw = iwinfo_backend(argv[1]);
 965
 966                 if (!iw)
 967                 {
 968                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 969                         rv = 1;
 970                 }
 971                 else
 972                 {
 973                         for (i = 2; i < argc; i++)
 974                         {
 975                                 switch(argv[i][0])
 976                                 {
 977                                 case 'i':
 978                                         print_info(iw, argv[1]);
 979                                         break;
 980
 981                                 case 's':
 982                                         print_scanlist(iw, argv[1]);
 983                                         break;
 984
 985                                 case 't':
 986                                         print_txpwrlist(iw, argv[1]);
 987                                         break;
 988
 989                                 case 'f':
 990                                         print_freqlist(iw, argv[1]);
 991                                         break;
 992
 993                                 case 'a':
 994                                         print_assoclist(iw, argv[1]);
 995                                         break;
 996
 997                                 case 'c':
 998                                         print_countrylist(iw, argv[1]);
 999                                         break;
1000
1001                                 case 'h':
1002                                         print_htmodelist(iw, argv[1]);
1003                                         break;
1004
1005                                 default:
1006                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
1007                                         rv = 1;
1008                                 }
1009                         }
1010                 }
1011         }
1012
1013         iwinfo_finish();
1014
1015         return rv;
1016 }