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