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[15];
 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",
 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
 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         }
 325
 326         return buf;
 327 }
 328
 329 static const char* format_chan_width(uint16_t width)
 330 {
 331         switch (width) {
 332                 case 20: return "20 MHz";
 333                 case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
 334                 case 40: return "40 MHz or lower";
 335                 case 80: return "80 MHz";
 336                 case 8080: return "80+80 MHz";
 337                 case 160: return "160 MHz";
 338         }
 339
 340         return "unknown";
 341 }
 342
 343
 344 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 345 {
 346         const char *type = iwinfo_type(ifname);
 347         return type ? type : "unknown";
 348 }
 349
 350 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 351 {
 352         static char buf[20];
 353         struct iwinfo_hardware_id ids;
 354
 355         if (!iw->hardware_id(ifname, (char *)&ids))
 356         {
 357                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 358                         ids.vendor_id, ids.device_id,
 359                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 360         }
 361         else
 362         {
 363                 snprintf(buf, sizeof(buf), "unknown");
 364         }
 365
 366         return buf;
 367 }
 368
 369 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 370 {
 371         static char buf[128];
 372
 373         if (iw->hardware_name(ifname, buf))
 374                 snprintf(buf, sizeof(buf), "unknown");
 375
 376         return buf;
 377 }
 378
 379 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 380 {
 381         int off;
 382         static char buf[12];
 383
 384         if (iw->txpower_offset(ifname, &off))
 385                 snprintf(buf, sizeof(buf), "unknown");
 386         else if (off != 0)
 387                 snprintf(buf, sizeof(buf), "%d dB", off);
 388         else
 389                 snprintf(buf, sizeof(buf), "none");
 390
 391         return buf;
 392 }
 393
 394 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 395 {
 396         int off;
 397         static char buf[12];
 398
 399         if (iw->frequency_offset(ifname, &off))
 400                 snprintf(buf, sizeof(buf), "unknown");
 401         else if (off != 0)
 402                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 403         else
 404                 snprintf(buf, sizeof(buf), "none");
 405
 406         return buf;
 407 }
 408
 409 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 410 {
 411         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 412
 413         if (iw->ssid(ifname, buf))
 414                 memset(buf, 0, sizeof(buf));
 415
 416         return format_ssid(buf);
 417 }
 418
 419 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 420 {
 421         static char buf[18] = { 0 };
 422
 423         if (iw->bssid(ifname, buf))
 424                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 425
 426         return buf;
 427 }
 428
 429 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 430 {
 431         int mode;
 432         static char buf[128];
 433
 434         if (iw->mode(ifname, &mode))
 435                 mode = IWINFO_OPMODE_UNKNOWN;
 436
 437         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 438
 439         return buf;
 440 }
 441
 442 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 443 {
 444         int ch;
 445         if (iw->channel(ifname, &ch))
 446                 ch = -1;
 447
 448         return format_channel(ch);
 449 }
 450
 451 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 452 {
 453         int ch;
 454         if (iw->center_chan1(ifname, &ch))
 455                 ch = -1;
 456
 457         return format_channel(ch);
 458 }
 459
 460 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 461 {
 462         int ch;
 463         if (iw->center_chan2(ifname, &ch))
 464                 ch = -1;
 465
 466         return format_channel(ch);
 467 }
 468
 469 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 470 {
 471         int freq;
 472         if (iw->frequency(ifname, &freq))
 473                 freq = -1;
 474
 475         return format_frequency(freq);
 476 }
 477
 478 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 479 {
 480         int pwr, off;
 481         if (iw->txpower_offset(ifname, &off))
 482                 off = 0;
 483
 484         if (iw->txpower(ifname, &pwr))
 485                 pwr = -1;
 486         else
 487                 pwr += off;
 488
 489         return format_txpower(pwr);
 490 }
 491
 492 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 493 {
 494         int qual;
 495         if (iw->quality(ifname, &qual))
 496                 qual = -1;
 497
 498         return format_quality(qual);
 499 }
 500
 501 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 502 {
 503         int qmax;
 504         if (iw->quality_max(ifname, &qmax))
 505                 qmax = -1;
 506
 507         return format_quality_max(qmax);
 508 }
 509
 510 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 511 {
 512         int sig;
 513         if (iw->signal(ifname, &sig))
 514                 sig = 0;
 515
 516         return format_signal(sig);
 517 }
 518
 519 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 520 {
 521         int noise;
 522         if (iw->noise(ifname, &noise))
 523                 noise = 0;
 524
 525         return format_noise(noise);
 526 }
 527
 528 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 529 {
 530         int rate;
 531         if (iw->bitrate(ifname, &rate))
 532                 rate = -1;
 533
 534         return format_rate(rate);
 535 }
 536
 537 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 538 {
 539         struct iwinfo_crypto_entry c = { 0 };
 540         if (iw->encryption(ifname, (char *)&c))
 541                 return format_encryption(NULL);
 542
 543         return format_encryption(&c);
 544 }
 545
 546 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 547 {
 548         int modes;
 549         if (iw->hwmodelist(ifname, &modes))
 550                 modes = -1;
 551
 552         return format_hwmodes(modes);
 553 }
 554
 555 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 556 {
 557         int supp;
 558         static char buf[4];
 559
 560         if (iw->mbssid_support(ifname, &supp))
 561                 snprintf(buf, sizeof(buf), "no");
 562         else
 563                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 564
 565         return buf;
 566 }
 567
 568 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 569 {
 570         static char buf[32];
 571
 572         if (!iw->phyname(ifname, buf))
 573                 return buf;
 574
 575         return "?";
 576 }
 577
 578
 579 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 580 {
 581         printf("%-9s ESSID: %s\n",
 582                 ifname,
 583                 print_ssid(iw, ifname));
 584         printf("          Access Point: %s\n",
 585                 print_bssid(iw, ifname));
 586         printf("          Mode: %s  Channel: %s (%s)\n",
 587                 print_mode(iw, ifname),
 588                 print_channel(iw, ifname),
 589                 print_frequency(iw, ifname));
 590         if (iw->center_chan1 != NULL) {
 591                 printf("          Center Channel 1: %s",
 592                         print_center_chan1(iw, ifname));
 593                 printf(" 2: %s\n", print_center_chan2(iw, ifname));
 594         }
 595         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 596                 print_txpower(iw, ifname),
 597                 print_quality(iw, ifname),
 598                 print_quality_max(iw, ifname));
 599         printf("          Signal: %s  Noise: %s\n",
 600                 print_signal(iw, ifname),
 601                 print_noise(iw, ifname));
 602         printf("          Bit Rate: %s\n",
 603                 print_rate(iw, ifname));
 604         printf("          Encryption: %s\n",
 605                 print_encryption(iw, ifname));
 606         printf("          Type: %s  HW Mode(s): %s\n",
 607                 print_type(iw, ifname),
 608                 print_hwmodes(iw, ifname));
 609         printf("          Hardware: %s [%s]\n",
 610                 print_hardware_id(iw, ifname),
 611                 print_hardware_name(iw, ifname));
 612         printf("          TX power offset: %s\n",
 613                 print_txpower_offset(iw, ifname));
 614         printf("          Frequency offset: %s\n",
 615                 print_frequency_offset(iw, ifname));
 616         printf("          Supports VAPs: %s  PHY name: %s\n",
 617                 print_mbssid_supp(iw, ifname),
 618                 print_phyname(iw, ifname));
 619 }
 620
 621
 622 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 623 {
 624         int i, x, len;
 625         char buf[IWINFO_BUFSIZE];
 626         struct iwinfo_scanlist_entry *e;
 627
 628         if (iw->scanlist(ifname, buf, &len))
 629         {
 630                 printf("Scanning not possible\n\n");
 631                 return;
 632         }
 633         else if (len <= 0)
 634         {
 635                 printf("No scan results\n\n");
 636                 return;
 637         }
 638
 639         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 640         {
 641                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 642
 643                 printf("Cell %02d - Address: %s\n",
 644                         x,
 645                         format_bssid(e->mac));
 646                 printf("          ESSID: %s\n",
 647                         format_ssid(e->ssid));
 648                 printf("          Mode: %s  Channel: %s\n",
 649                         IWINFO_OPMODE_NAMES[e->mode],
 650                         format_channel(e->channel));
 651                 printf("          Signal: %s  Quality: %s/%s\n",
 652                         format_signal(e->signal - 0x100),
 653                         format_quality(e->quality),
 654                         format_quality_max(e->quality_max));
 655                 printf("          Encryption: %s\n",
 656                         format_encryption(&e->crypto));
 657                 printf("          HT Operation:\n");
 658                 printf("                    Primary Channel: %d\n",
 659                         e->ht_chan_info.primary_chan);
 660                 printf("                    Secondary Channel Offset: %s\n",
 661                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 662                 printf("                    Channel Width: %s\n",
 663                         format_chan_width(e->ht_chan_info.chan_width));
 664
 665                 if (e->vht_chan_info.center_chan_1) {
 666                         printf("          VHT Operation:\n");
 667                         printf("                    Channel Width: %s\n",
 668                                 format_chan_width(e->vht_chan_info.chan_width));
 669                         printf("                    Center Frequency 1: %d\n",
 670                                  e->vht_chan_info.center_chan_1);
 671                         printf("                    Center Frequency 2: %d\n",
 672                                  e->vht_chan_info.center_chan_2);
 673                 }
 674
 675                 printf("\n");
 676         }
 677 }
 678
 679
 680 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 681 {
 682         int len, pwr, off, i;
 683         char buf[IWINFO_BUFSIZE];
 684         struct iwinfo_txpwrlist_entry *e;
 685
 686         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 687         {
 688                 printf("No TX power information available\n");
 689                 return;
 690         }
 691
 692         if (iw->txpower(ifname, &pwr))
 693                 pwr = -1;
 694
 695         if (iw->txpower_offset(ifname, &off))
 696                 off = 0;
 697
 698         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 699         {
 700                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 701
 702                 printf("%s%3d dBm (%4d mW)\n",
 703                         (pwr == e->dbm) ? "*" : " ",
 704                         e->dbm + off,
 705                         iwinfo_dbm2mw(e->dbm + off));
 706         }
 707 }
 708
 709
 710 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 711 {
 712         int i, len, ch;
 713         char buf[IWINFO_BUFSIZE];
 714         struct iwinfo_freqlist_entry *e;
 715
 716         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 717         {
 718                 printf("No frequency information available\n");
 719                 return;
 720         }
 721
 722         if (iw->channel(ifname, &ch))
 723                 ch = -1;
 724
 725         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 726         {
 727                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 728
 729                 printf("%s %s (Channel %s)%s\n",
 730                         (ch == e->channel) ? "*" : " ",
 731                         format_frequency(e->mhz),
 732                         format_channel(e->channel),
 733                         e->restricted ? " [restricted]" : "");
 734         }
 735 }
 736
 737
 738 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 739 {
 740         int i, len;
 741         char buf[IWINFO_BUFSIZE];
 742         struct iwinfo_assoclist_entry *e;
 743
 744         if (iw->assoclist(ifname, buf, &len))
 745         {
 746                 printf("No information available\n");
 747                 return;
 748         }
 749         else if (len <= 0)
 750         {
 751                 printf("No station connected\n");
 752                 return;
 753         }
 754
 755         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 756         {
 757                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 758
 759                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 760                         format_bssid(e->mac),
 761                         format_signal(e->signal),
 762                         format_noise(e->noise),
 763                         (e->signal - e->noise),
 764                         e->inactive);
 765
 766                 printf("        RX: %-38s  %8d Pkts.\n",
 767                         format_assocrate(&e->rx_rate),
 768                         e->rx_packets
 769                 );
 770
 771                 printf("        TX: %-38s  %8d Pkts.\n",
 772                         format_assocrate(&e->tx_rate),
 773                         e->tx_packets
 774                 );
 775
 776                 printf("        expected throughput: %s\n\n",
 777                         format_rate(e->thr));
 778         }
 779 }
 780
 781
 782 static char * lookup_country(char *buf, int len, int iso3166)
 783 {
 784         int i;
 785         struct iwinfo_country_entry *c;
 786
 787         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 788         {
 789                 c = (struct iwinfo_country_entry *) &buf[i];
 790
 791                 if (c->iso3166 == iso3166)
 792                         return c->ccode;
 793         }
 794
 795         return NULL;
 796 }
 797
 798 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 799 {
 800         int len;
 801         char buf[IWINFO_BUFSIZE];
 802         char *ccode;
 803         char curcode[3];
 804         const struct iwinfo_iso3166_label *l;
 805
 806         if (iw->countrylist(ifname, buf, &len))
 807         {
 808                 printf("No country code information available\n");
 809                 return;
 810         }
 811
 812         if (iw->country(ifname, curcode))
 813                 memset(curcode, 0, sizeof(curcode));
 814
 815         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 816         {
 817                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 818                 {
 819                         printf("%s %4s  %c%c\n",
 820                                 strncmp(ccode, curcode, 2) ? " " : "*",
 821                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 822                 }
 823         }
 824 }
 825
 826 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 827 {
 828         int i, htmodes = 0;
 829
 830         if (iw->htmodelist(ifname, &htmodes))
 831         {
 832                 printf("No HT mode information available\n");
 833                 return;
 834         }
 835
 836         for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
 837                 if (htmodes & (1 << i))
 838                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 839
 840         printf("\n");
 841 }
 842
 843 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 844 {
 845         char buf[IWINFO_BUFSIZE];
 846
 847         if (!iw->lookup_phy)
 848         {
 849                 fprintf(stderr, "Not supported\n");
 850                 return;
 851         }
 852
 853         if (iw->lookup_phy(section, buf))
 854         {
 855                 fprintf(stderr, "Phy not found\n");
 856                 return;
 857         }
 858
 859         printf("%s\n", buf);
 860 }
 861
 862
 863 int main(int argc, char **argv)
 864 {
 865         int i, rv = 0;
 866         char *p;
 867         const struct iwinfo_ops *iw;
 868         glob_t globbuf;
 869
 870         if (argc > 1 && argc < 3)
 871         {
 872                 fprintf(stderr,
 873                         "Usage:\n"
 874                         "       iwinfo <device> info\n"
 875                         "       iwinfo <device> scan\n"
 876                         "       iwinfo <device> txpowerlist\n"
 877                         "       iwinfo <device> freqlist\n"
 878                         "       iwinfo <device> assoclist\n"
 879                         "       iwinfo <device> countrylist\n"
 880                         "       iwinfo <device> htmodelist\n"
 881                         "       iwinfo <backend> phyname <section>\n"
 882                 );
 883
 884                 return 1;
 885         }
 886
 887         if (argc == 1)
 888         {
 889                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 890
 891                 for (i = 0; i < globbuf.gl_pathc; i++)
 892                 {
 893                         p = strrchr(globbuf.gl_pathv[i], '/');
 894
 895                         if (!p)
 896                                 continue;
 897
 898                         iw = iwinfo_backend(++p);
 899
 900                         if (!iw)
 901                                 continue;
 902
 903                         print_info(iw, p);
 904                         printf("\n");
 905                 }
 906
 907                 globfree(&globbuf);
 908                 return 0;
 909         }
 910
 911         if (argc > 3)
 912         {
 913                 iw = iwinfo_backend_by_name(argv[1]);
 914
 915                 if (!iw)
 916                 {
 917                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 918                         rv = 1;
 919                 }
 920                 else
 921                 {
 922                         switch (argv[2][0])
 923                         {
 924                         case 'p':
 925                                 lookup_phy(iw, argv[3]);
 926                                 break;
 927
 928                         default:
 929                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 930                                 rv = 1;
 931                         }
 932                 }
 933         }
 934         else
 935         {
 936                 iw = iwinfo_backend(argv[1]);
 937
 938                 if (!iw)
 939                 {
 940                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 941                         rv = 1;
 942                 }
 943                 else
 944                 {
 945                         for (i = 2; i < argc; i++)
 946                         {
 947                                 switch(argv[i][0])
 948                                 {
 949                                 case 'i':
 950                                         print_info(iw, argv[1]);
 951                                         break;
 952
 953                                 case 's':
 954                                         print_scanlist(iw, argv[1]);
 955                                         break;
 956
 957                                 case 't':
 958                                         print_txpwrlist(iw, argv[1]);
 959                                         break;
 960
 961                                 case 'f':
 962                                         print_freqlist(iw, argv[1]);
 963                                         break;
 964
 965                                 case 'a':
 966                                         print_assoclist(iw, argv[1]);
 967                                         break;
 968
 969                                 case 'c':
 970                                         print_countrylist(iw, argv[1]);
 971                                         break;
 972
 973                                 case 'h':
 974                                         print_htmodelist(iw, argv[1]);
 975                                         break;
 976
 977                                 default:
 978                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
 979                                         rv = 1;
 980                                 }
 981                         }
 982                 }
 983         }
 984
 985         iwinfo_finish();
 986
 987         return rv;
 988 }