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[8];
  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[10];
  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[8];
  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[8];
  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_GCMP)
 162                 pos += sprintf(pos, "GCMP, ");
 163
 164         if (ciphers & IWINFO_CIPHER_WRAP)
 165                 pos += sprintf(pos, "WRAP, ");
 166
 167         if (ciphers & IWINFO_CIPHER_AESOCB)
 168                 pos += sprintf(pos, "AES-OCB, ");
 169
 170         if (ciphers & IWINFO_CIPHER_CKIP)
 171                 pos += sprintf(pos, "CKIP, ");
 172
 173         if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
 174                 pos += sprintf(pos, "NONE, ");
 175
 176         *(pos - 2) = 0;
 177
 178         return str;
 179 }
 180
 181 static char * format_enc_suites(int suites)
 182 {
 183         static char str[64] = { 0 };
 184         char *pos = str;
 185
 186         if (suites & IWINFO_KMGMT_PSK)
 187                 pos += sprintf(pos, "PSK/");
 188
 189         if (suites & IWINFO_KMGMT_8021x)
 190                 pos += sprintf(pos, "802.1X/");
 191
 192         if (suites & IWINFO_KMGMT_SAE)
 193                 pos += sprintf(pos, "SAE/");
 194
 195         if (suites & IWINFO_KMGMT_OWE)
 196                 pos += sprintf(pos, "OWE/");
 197
 198         if (!suites || (suites & IWINFO_KMGMT_NONE))
 199                 pos += sprintf(pos, "NONE/");
 200
 201         *(pos - 1) = 0;
 202
 203         return str;
 204 }
 205
 206 static char * format_encryption(struct iwinfo_crypto_entry *c)
 207 {
 208         static char buf[512];
 209         char *pos = buf;
 210         int i, n;
 211
 212         if (!c)
 213         {
 214                 snprintf(buf, sizeof(buf), "unknown");
 215         }
 216         else if (c->enabled)
 217         {
 218                 /* WEP */
 219                 if (c->auth_algs && !c->wpa_version)
 220                 {
 221                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 222                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 223                         {
 224                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 225                                         format_enc_ciphers(c->pair_ciphers));
 226                         }
 227                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 228                         {
 229                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 230                                         format_enc_ciphers(c->pair_ciphers));
 231                         }
 232                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 233                         {
 234                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 235                                         format_enc_ciphers(c->pair_ciphers));
 236                         }
 237                 }
 238
 239                 /* WPA */
 240                 else if (c->wpa_version)
 241                 {
 242                         for (i = 0, n = 0; i < 3; i++)
 243                                 if (c->wpa_version & (1 << i))
 244                                         n++;
 245
 246                         if (n > 1)
 247                                 pos += sprintf(pos, "mixed ");
 248
 249                         for (i = 0; i < 3; i++)
 250                                 if (c->wpa_version & (1 << i))
 251                                         if (i)
 252                                                 pos += sprintf(pos, "WPA%d/", i + 1);
 253                                         else
 254                                                 pos += sprintf(pos, "WPA/");
 255
 256                         pos--;
 257
 258                         sprintf(pos, " %s (%s)",
 259                                 format_enc_suites(c->auth_suites),
 260                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 261                 }
 262                 else
 263                 {
 264                         snprintf(buf, sizeof(buf), "none");
 265                 }
 266         }
 267         else
 268         {
 269                 snprintf(buf, sizeof(buf), "none");
 270         }
 271
 272         return buf;
 273 }
 274
 275 static char * format_hwmodes(int modes)
 276 {
 277         static char buf[17];
 278
 279         if (modes <= 0)
 280                 snprintf(buf, sizeof(buf), "unknown");
 281         else
 282                 snprintf(buf, sizeof(buf), "802.11%s%s%s%s%s%s%s",
 283                         (modes & IWINFO_80211_A) ? "a" : "",
 284                         (modes & IWINFO_80211_B) ? "b" : "",
 285                         (modes & IWINFO_80211_G) ? "g" : "",
 286                         (modes & IWINFO_80211_N) ? "n" : "",
 287                         (modes & IWINFO_80211_AC) ? "ac" : "",
 288                         (modes & IWINFO_80211_AD) ? "ad" : "",
 289                         (modes & IWINFO_80211_AX) ? "ax" : "");
 290
 291         return buf;
 292 }
 293
 294 static char * format_assocrate(struct iwinfo_rate_entry *r)
 295 {
 296         static char buf[80];
 297         char *p = buf;
 298         int l = sizeof(buf);
 299
 300         if (r->rate <= 0)
 301         {
 302                 snprintf(buf, sizeof(buf), "unknown");
 303         }
 304         else
 305         {
 306                 p += snprintf(p, l, "%s", format_rate(r->rate));
 307                 l = sizeof(buf) - (p - buf);
 308
 309                 if (r->is_ht)
 310                 {
 311                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, r->mhz);
 312                         l = sizeof(buf) - (p - buf);
 313                 }
 314                 else if (r->is_vht)
 315                 {
 316                         p += snprintf(p, l, ", VHT-MCS %d, %dMHz", r->mcs, r->mhz);
 317                         l = sizeof(buf) - (p - buf);
 318
 319                         if (r->nss)
 320                         {
 321                                 p += snprintf(p, l, ", VHT-NSS %d", r->nss);
 322                                 l = sizeof(buf) - (p - buf);
 323                         }
 324                 }
 325                 else if (r->is_he)
 326                 {
 327                         p += snprintf(p, l, ", HE-MCS %d, %dMHz", r->mcs, r->mhz);
 328                         l = sizeof(buf) - (p - buf);
 329
 330                         p += snprintf(p, l, ", HE-NSS %d", r->nss);
 331                         l = sizeof(buf) - (p - buf);
 332
 333                         p += snprintf(p, l, ", HE-GI %d", r->he_gi);
 334                         l = sizeof(buf) - (p - buf);
 335
 336                         p += snprintf(p, l, ", HE-DCM %d", r->he_dcm);
 337                         l = sizeof(buf) - (p - buf);
 338                 }
 339         }
 340
 341         return buf;
 342 }
 343
 344 static const char* format_chan_width(uint16_t width)
 345 {
 346         switch (width) {
 347                 case 20: return "20 MHz";
 348                 case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
 349                 case 40: return "40 MHz or lower";
 350                 case 80: return "80 MHz";
 351                 case 8080: return "80+80 MHz";
 352                 case 160: return "160 MHz";
 353         }
 354
 355         return "unknown";
 356 }
 357
 358
 359 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 360 {
 361         const char *type = iwinfo_type(ifname);
 362         return type ? type : "unknown";
 363 }
 364
 365 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 366 {
 367         static char buf[20];
 368         struct iwinfo_hardware_id ids;
 369
 370         if (!iw->hardware_id(ifname, (char *)&ids))
 371         {
 372                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 373                         ids.vendor_id, ids.device_id,
 374                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 375         }
 376         else
 377         {
 378                 snprintf(buf, sizeof(buf), "unknown");
 379         }
 380
 381         return buf;
 382 }
 383
 384 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 385 {
 386         static char buf[128];
 387
 388         if (iw->hardware_name(ifname, buf))
 389                 snprintf(buf, sizeof(buf), "unknown");
 390
 391         return buf;
 392 }
 393
 394 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 395 {
 396         int off;
 397         static char buf[12];
 398
 399         if (iw->txpower_offset(ifname, &off))
 400                 snprintf(buf, sizeof(buf), "unknown");
 401         else if (off != 0)
 402                 snprintf(buf, sizeof(buf), "%d dB", off);
 403         else
 404                 snprintf(buf, sizeof(buf), "none");
 405
 406         return buf;
 407 }
 408
 409 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 410 {
 411         int off;
 412         static char buf[12];
 413
 414         if (iw->frequency_offset(ifname, &off))
 415                 snprintf(buf, sizeof(buf), "unknown");
 416         else if (off != 0)
 417                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 418         else
 419                 snprintf(buf, sizeof(buf), "none");
 420
 421         return buf;
 422 }
 423
 424 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 425 {
 426         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 427
 428         if (iw->ssid(ifname, buf))
 429                 memset(buf, 0, sizeof(buf));
 430
 431         return format_ssid(buf);
 432 }
 433
 434 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 435 {
 436         static char buf[18] = { 0 };
 437
 438         if (iw->bssid(ifname, buf))
 439                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 440
 441         return buf;
 442 }
 443
 444 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 445 {
 446         int mode;
 447         static char buf[128];
 448
 449         if (iw->mode(ifname, &mode))
 450                 mode = IWINFO_OPMODE_UNKNOWN;
 451
 452         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 453
 454         return buf;
 455 }
 456
 457 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 458 {
 459         int ch;
 460         if (iw->channel(ifname, &ch))
 461                 ch = -1;
 462
 463         return format_channel(ch);
 464 }
 465
 466 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 467 {
 468         int ch;
 469         if (iw->center_chan1(ifname, &ch))
 470                 ch = -1;
 471
 472         return format_channel(ch);
 473 }
 474
 475 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 476 {
 477         int ch;
 478         if (iw->center_chan2(ifname, &ch))
 479                 ch = -1;
 480
 481         return format_channel(ch);
 482 }
 483
 484 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 485 {
 486         int freq;
 487         if (iw->frequency(ifname, &freq))
 488                 freq = -1;
 489
 490         return format_frequency(freq);
 491 }
 492
 493 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 494 {
 495         int pwr, off;
 496         if (iw->txpower_offset(ifname, &off))
 497                 off = 0;
 498
 499         if (iw->txpower(ifname, &pwr))
 500                 pwr = -1;
 501         else
 502                 pwr += off;
 503
 504         return format_txpower(pwr);
 505 }
 506
 507 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 508 {
 509         int qual;
 510         if (iw->quality(ifname, &qual))
 511                 qual = -1;
 512
 513         return format_quality(qual);
 514 }
 515
 516 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 517 {
 518         int qmax;
 519         if (iw->quality_max(ifname, &qmax))
 520                 qmax = -1;
 521
 522         return format_quality_max(qmax);
 523 }
 524
 525 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 526 {
 527         int sig;
 528         if (iw->signal(ifname, &sig))
 529                 sig = 0;
 530
 531         return format_signal(sig);
 532 }
 533
 534 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 535 {
 536         int noise;
 537         if (iw->noise(ifname, &noise))
 538                 noise = 0;
 539
 540         return format_noise(noise);
 541 }
 542
 543 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 544 {
 545         int rate;
 546         if (iw->bitrate(ifname, &rate))
 547                 rate = -1;
 548
 549         return format_rate(rate);
 550 }
 551
 552 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 553 {
 554         struct iwinfo_crypto_entry c = { 0 };
 555         if (iw->encryption(ifname, (char *)&c))
 556                 return format_encryption(NULL);
 557
 558         return format_encryption(&c);
 559 }
 560
 561 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 562 {
 563         int modes;
 564         if (iw->hwmodelist(ifname, &modes))
 565                 modes = -1;
 566
 567         return format_hwmodes(modes);
 568 }
 569
 570 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 571 {
 572         int supp;
 573         static char buf[4];
 574
 575         if (iw->mbssid_support(ifname, &supp))
 576                 snprintf(buf, sizeof(buf), "no");
 577         else
 578                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 579
 580         return buf;
 581 }
 582
 583 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 584 {
 585         static char buf[32];
 586
 587         if (!iw->phyname(ifname, buf))
 588                 return buf;
 589
 590         return "?";
 591 }
 592
 593
 594 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 595 {
 596         printf("%-9s ESSID: %s\n",
 597                 ifname,
 598                 print_ssid(iw, ifname));
 599         printf("          Access Point: %s\n",
 600                 print_bssid(iw, ifname));
 601         printf("          Mode: %s  Channel: %s (%s)\n",
 602                 print_mode(iw, ifname),
 603                 print_channel(iw, ifname),
 604                 print_frequency(iw, ifname));
 605         if (iw->center_chan1 != NULL) {
 606                 printf("          Center Channel 1: %s",
 607                         print_center_chan1(iw, ifname));
 608                 printf(" 2: %s\n", print_center_chan2(iw, ifname));
 609         }
 610         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 611                 print_txpower(iw, ifname),
 612                 print_quality(iw, ifname),
 613                 print_quality_max(iw, ifname));
 614         printf("          Signal: %s  Noise: %s\n",
 615                 print_signal(iw, ifname),
 616                 print_noise(iw, ifname));
 617         printf("          Bit Rate: %s\n",
 618                 print_rate(iw, ifname));
 619         printf("          Encryption: %s\n",
 620                 print_encryption(iw, ifname));
 621         printf("          Type: %s  HW Mode(s): %s\n",
 622                 print_type(iw, ifname),
 623                 print_hwmodes(iw, ifname));
 624         printf("          Hardware: %s [%s]\n",
 625                 print_hardware_id(iw, ifname),
 626                 print_hardware_name(iw, ifname));
 627         printf("          TX power offset: %s\n",
 628                 print_txpower_offset(iw, ifname));
 629         printf("          Frequency offset: %s\n",
 630                 print_frequency_offset(iw, ifname));
 631         printf("          Supports VAPs: %s  PHY name: %s\n",
 632                 print_mbssid_supp(iw, ifname),
 633                 print_phyname(iw, ifname));
 634 }
 635
 636
 637 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 638 {
 639         int i, x, len;
 640         char buf[IWINFO_BUFSIZE];
 641         struct iwinfo_scanlist_entry *e;
 642
 643         if (iw->scanlist(ifname, buf, &len))
 644         {
 645                 printf("Scanning not possible\n\n");
 646                 return;
 647         }
 648         else if (len <= 0)
 649         {
 650                 printf("No scan results\n\n");
 651                 return;
 652         }
 653
 654         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 655         {
 656                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 657
 658                 printf("Cell %02d - Address: %s\n",
 659                         x,
 660                         format_bssid(e->mac));
 661                 printf("          ESSID: %s\n",
 662                         format_ssid(e->ssid));
 663                 printf("          Mode: %s  Channel: %s\n",
 664                         IWINFO_OPMODE_NAMES[e->mode],
 665                         format_channel(e->channel));
 666                 printf("          Signal: %s  Quality: %s/%s\n",
 667                         format_signal(e->signal - 0x100),
 668                         format_quality(e->quality),
 669                         format_quality_max(e->quality_max));
 670                 printf("          Encryption: %s\n",
 671                         format_encryption(&e->crypto));
 672                 printf("          HT Operation:\n");
 673                 printf("                    Primary Channel: %d\n",
 674                         e->ht_chan_info.primary_chan);
 675                 printf("                    Secondary Channel Offset: %s\n",
 676                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 677                 printf("                    Channel Width: %s\n",
 678                         format_chan_width(e->ht_chan_info.chan_width));
 679
 680                 if (e->vht_chan_info.center_chan_1) {
 681                         printf("          VHT Operation:\n");
 682                         printf("                    Channel Width: %s\n",
 683                                 format_chan_width(e->vht_chan_info.chan_width));
 684                         printf("                    Center Frequency 1: %d\n",
 685                                  e->vht_chan_info.center_chan_1);
 686                         printf("                    Center Frequency 2: %d\n",
 687                                  e->vht_chan_info.center_chan_2);
 688                 }
 689
 690                 printf("\n");
 691         }
 692 }
 693
 694
 695 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 696 {
 697         int len, pwr, off, i;
 698         char buf[IWINFO_BUFSIZE];
 699         struct iwinfo_txpwrlist_entry *e;
 700
 701         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 702         {
 703                 printf("No TX power information available\n");
 704                 return;
 705         }
 706
 707         if (iw->txpower(ifname, &pwr))
 708                 pwr = -1;
 709
 710         if (iw->txpower_offset(ifname, &off))
 711                 off = 0;
 712
 713         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 714         {
 715                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 716
 717                 printf("%s%3d dBm (%4d mW)\n",
 718                         (pwr == e->dbm) ? "*" : " ",
 719                         e->dbm + off,
 720                         iwinfo_dbm2mw(e->dbm + off));
 721         }
 722 }
 723
 724
 725 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 726 {
 727         int i, len, ch;
 728         char buf[IWINFO_BUFSIZE];
 729         struct iwinfo_freqlist_entry *e;
 730
 731         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 732         {
 733                 printf("No frequency information available\n");
 734                 return;
 735         }
 736
 737         if (iw->channel(ifname, &ch))
 738                 ch = -1;
 739
 740         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 741         {
 742                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 743
 744                 printf("%s %s (Channel %s)%s\n",
 745                         (ch == e->channel) ? "*" : " ",
 746                         format_frequency(e->mhz),
 747                         format_channel(e->channel),
 748                         e->restricted ? " [restricted]" : "");
 749         }
 750 }
 751
 752
 753 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 754 {
 755         int i, len;
 756         char buf[IWINFO_BUFSIZE];
 757         struct iwinfo_assoclist_entry *e;
 758
 759         if (iw->assoclist(ifname, buf, &len))
 760         {
 761                 printf("No information available\n");
 762                 return;
 763         }
 764         else if (len <= 0)
 765         {
 766                 printf("No station connected\n");
 767                 return;
 768         }
 769
 770         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 771         {
 772                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 773
 774                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 775                         format_bssid(e->mac),
 776                         format_signal(e->signal),
 777                         format_noise(e->noise),
 778                         (e->signal - e->noise),
 779                         e->inactive);
 780
 781                 printf("        RX: %-38s  %8d Pkts.\n",
 782                         format_assocrate(&e->rx_rate),
 783                         e->rx_packets
 784                 );
 785
 786                 printf("        TX: %-38s  %8d Pkts.\n",
 787                         format_assocrate(&e->tx_rate),
 788                         e->tx_packets
 789                 );
 790
 791                 printf("        expected throughput: %s\n\n",
 792                         format_rate(e->thr));
 793         }
 794 }
 795
 796
 797 static char * lookup_country(char *buf, int len, int iso3166)
 798 {
 799         int i;
 800         struct iwinfo_country_entry *c;
 801
 802         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 803         {
 804                 c = (struct iwinfo_country_entry *) &buf[i];
 805
 806                 if (c->iso3166 == iso3166)
 807                         return c->ccode;
 808         }
 809
 810         return NULL;
 811 }
 812
 813 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 814 {
 815         int len;
 816         char buf[IWINFO_BUFSIZE];
 817         char *ccode;
 818         char curcode[3];
 819         const struct iwinfo_iso3166_label *l;
 820
 821         if (iw->countrylist(ifname, buf, &len))
 822         {
 823                 printf("No country code information available\n");
 824                 return;
 825         }
 826
 827         if (iw->country(ifname, curcode))
 828                 memset(curcode, 0, sizeof(curcode));
 829
 830         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 831         {
 832                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 833                 {
 834                         printf("%s %4s  %c%c\n",
 835                                 strncmp(ccode, curcode, 2) ? " " : "*",
 836                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 837                 }
 838         }
 839 }
 840
 841 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 842 {
 843         int i, htmodes = 0;
 844
 845         if (iw->htmodelist(ifname, &htmodes))
 846         {
 847                 printf("No HT mode information available\n");
 848                 return;
 849         }
 850
 851         for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
 852                 if (htmodes & (1 << i))
 853                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 854
 855         printf("\n");
 856 }
 857
 858 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 859 {
 860         char buf[IWINFO_BUFSIZE];
 861
 862         if (!iw->lookup_phy)
 863         {
 864                 fprintf(stderr, "Not supported\n");
 865                 return;
 866         }
 867
 868         if (iw->lookup_phy(section, buf))
 869         {
 870                 fprintf(stderr, "Phy not found\n");
 871                 return;
 872         }
 873
 874         printf("%s\n", buf);
 875 }
 876
 877
 878 static void lookup_path(const struct iwinfo_ops *iw, const char *phy)
 879 {
 880         const char *path;
 881
 882         if (!iw->phy_path || iw->phy_path(phy, &path) || !path)
 883                 return;
 884
 885         printf("%s\n", path);
 886 }
 887
 888 int main(int argc, char **argv)
 889 {
 890         int i, rv = 0;
 891         char *p;
 892         const struct iwinfo_ops *iw;
 893         glob_t globbuf;
 894
 895         if (argc > 1 && argc < 3)
 896         {
 897                 fprintf(stderr,
 898                         "Usage:\n"
 899                         "       iwinfo <device> info\n"
 900                         "       iwinfo <device> scan\n"
 901                         "       iwinfo <device> txpowerlist\n"
 902                         "       iwinfo <device> freqlist\n"
 903                         "       iwinfo <device> assoclist\n"
 904                         "       iwinfo <device> countrylist\n"
 905                         "       iwinfo <device> htmodelist\n"
 906                         "       iwinfo <backend> phyname <section>\n"
 907                 );
 908
 909                 return 1;
 910         }
 911
 912         if (argc == 1)
 913         {
 914                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 915
 916                 for (i = 0; i < globbuf.gl_pathc; i++)
 917                 {
 918                         p = strrchr(globbuf.gl_pathv[i], '/');
 919
 920                         if (!p)
 921                                 continue;
 922
 923                         iw = iwinfo_backend(++p);
 924
 925                         if (!iw)
 926                                 continue;
 927
 928                         print_info(iw, p);
 929                         printf("\n");
 930                 }
 931
 932                 globfree(&globbuf);
 933                 return 0;
 934         }
 935
 936         if (argc > 3)
 937         {
 938                 iw = iwinfo_backend_by_name(argv[1]);
 939
 940                 if (!iw)
 941                 {
 942                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 943                         rv = 1;
 944                 }
 945                 else
 946                 {
 947                         if (!strcmp(argv[2], "path")) {
 948                                 lookup_path(iw, argv[3]);
 949                                 return 0;
 950                         }
 951                         switch (argv[2][0])
 952                         {
 953                         case 'p':
 954                                 lookup_phy(iw, argv[3]);
 955                                 break;
 956
 957                         default:
 958                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 959                                 rv = 1;
 960                         }
 961                 }
 962         }
 963         else
 964         {
 965                 iw = iwinfo_backend(argv[1]);
 966
 967                 if (!iw)
 968                 {
 969                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 970                         rv = 1;
 971                 }
 972                 else
 973                 {
 974                         for (i = 2; i < argc; i++)
 975                         {
 976                                 switch(argv[i][0])
 977                                 {
 978                                 case 'i':
 979                                         print_info(iw, argv[1]);
 980                                         break;
 981
 982                                 case 's':
 983                                         print_scanlist(iw, argv[1]);
 984                                         break;
 985
 986                                 case 't':
 987                                         print_txpwrlist(iw, argv[1]);
 988                                         break;
 989
 990                                 case 'f':
 991                                         print_freqlist(iw, argv[1]);
 992                                         break;
 993
 994                                 case 'a':
 995                                         print_assoclist(iw, argv[1]);
 996                                         break;
 997
 998                                 case 'c':
 999                                         print_countrylist(iw, argv[1]);
1000                                         break;
1001
1002                                 case 'h':
1003                                         print_htmodelist(iw, argv[1]);
1004                                         break;
1005
1006                                 default:
1007                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
1008                                         rv = 1;
1009                                 }
1010                         }
1011                 }
1012         }
1013
1014         iwinfo_finish();
1015
1016         return rv;
1017 }