iwinfo_cli.c

   1 /*
   2  * iwinfo - Wireless Information Library - Command line frontend
   3  *
   4  *   Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
   5  *
   6  * The iwinfo library is free software: you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License version 2
   8  * as published by the Free Software Foundation.
   9  *
  10  * The iwinfo library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with the iwinfo library. If not, see http://www.gnu.org/licenses/.
  17  */
  18
  19 #include <stdio.h>
  20 #include <glob.h>
  21
  22 #include "iwinfo.h"
  23
  24
  25 static char * format_bssid(unsigned char *mac)
  26 {
  27         static char buf[18];
  28
  29         snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
  30                 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
  31
  32         return buf;
  33 }
  34
  35 static char * format_ssid(char *ssid)
  36 {
  37         static char buf[IWINFO_ESSID_MAX_SIZE+3];
  38
  39         if (ssid && ssid[0])
  40                 snprintf(buf, sizeof(buf), "\"%s\"", ssid);
  41         else
  42                 snprintf(buf, sizeof(buf), "unknown");
  43
  44         return buf;
  45 }
  46
  47 static char * format_channel(int ch)
  48 {
  49         static char buf[16];
  50
  51         if (ch <= 0)
  52                 snprintf(buf, sizeof(buf), "unknown");
  53         else
  54                 snprintf(buf, sizeof(buf), "%d", ch);
  55
  56         return buf;
  57 }
  58
  59 static char * format_frequency(int freq)
  60 {
  61         static char buf[11];
  62
  63         if (freq <= 0)
  64                 snprintf(buf, sizeof(buf), "unknown");
  65         else
  66                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
  67
  68         return buf;
  69 }
  70
  71 static char * format_txpower(int pwr)
  72 {
  73         static char buf[16];
  74
  75         if (pwr < 0)
  76                 snprintf(buf, sizeof(buf), "unknown");
  77         else
  78                 snprintf(buf, sizeof(buf), "%d dBm", pwr);
  79
  80         return buf;
  81 }
  82
  83 static char * format_quality(int qual)
  84 {
  85         static char buf[16];
  86
  87         if (qual < 0)
  88                 snprintf(buf, sizeof(buf), "unknown");
  89         else
  90                 snprintf(buf, sizeof(buf), "%d", qual);
  91
  92         return buf;
  93 }
  94
  95 static char * format_quality_max(int qmax)
  96 {
  97         static char buf[16];
  98
  99         if (qmax < 0)
 100                 snprintf(buf, sizeof(buf), "unknown");
 101         else
 102                 snprintf(buf, sizeof(buf), "%d", qmax);
 103
 104         return buf;
 105 }
 106
 107 static char * format_signal(int sig)
 108 {
 109         static char buf[10];
 110
 111         if (!sig)
 112                 snprintf(buf, sizeof(buf), "unknown");
 113         else
 114                 snprintf(buf, sizeof(buf), "%d dBm", sig);
 115
 116         return buf;
 117 }
 118
 119 static char * format_noise(int noise)
 120 {
 121         static char buf[10];
 122
 123         if (!noise)
 124                 snprintf(buf, sizeof(buf), "unknown");
 125         else
 126                 snprintf(buf, sizeof(buf), "%d dBm", noise);
 127
 128         return buf;
 129 }
 130
 131 static char * format_rate(int rate)
 132 {
 133         static char buf[18];
 134
 135         if (rate <= 0)
 136                 snprintf(buf, sizeof(buf), "unknown");
 137         else
 138                 snprintf(buf, sizeof(buf), "%d.%d MBit/s",
 139                         rate / 1000, (rate % 1000) / 100);
 140
 141         return buf;
 142 }
 143
 144 static char * format_enc_ciphers(int ciphers)
 145 {
 146         static char str[128] = { 0 };
 147         char *pos = str;
 148
 149         if (ciphers & IWINFO_CIPHER_WEP40)
 150                 pos += sprintf(pos, "WEP-40, ");
 151
 152         if (ciphers & IWINFO_CIPHER_WEP104)
 153                 pos += sprintf(pos, "WEP-104, ");
 154
 155         if (ciphers & IWINFO_CIPHER_TKIP)
 156                 pos += sprintf(pos, "TKIP, ");
 157
 158         if (ciphers & IWINFO_CIPHER_CCMP)
 159                 pos += sprintf(pos, "CCMP, ");
 160
 161         if (ciphers & IWINFO_CIPHER_CCMP256)
 162                 pos += sprintf(pos, "CCMP-256, ");
 163
 164         if (ciphers & IWINFO_CIPHER_GCMP)
 165                 pos += sprintf(pos, "GCMP, ");
 166
 167         if (ciphers & IWINFO_CIPHER_GCMP256)
 168                 pos += sprintf(pos, "GCMP-256, ");
 169
 170         if (ciphers & IWINFO_CIPHER_WRAP)
 171                 pos += sprintf(pos, "WRAP, ");
 172
 173         if (ciphers & IWINFO_CIPHER_AESOCB)
 174                 pos += sprintf(pos, "AES-OCB, ");
 175
 176         if (ciphers & IWINFO_CIPHER_CKIP)
 177                 pos += sprintf(pos, "CKIP, ");
 178
 179         if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
 180                 pos += sprintf(pos, "NONE, ");
 181
 182         *(pos - 2) = 0;
 183
 184         return str;
 185 }
 186
 187 static char * format_enc_suites(int suites)
 188 {
 189         static char str[64] = { 0 };
 190         char *pos = str;
 191
 192         if (suites & IWINFO_KMGMT_PSK)
 193                 pos += sprintf(pos, "PSK/");
 194
 195         if (suites & IWINFO_KMGMT_8021x)
 196                 pos += sprintf(pos, "802.1X/");
 197
 198         if (suites & IWINFO_KMGMT_SAE)
 199                 pos += sprintf(pos, "SAE/");
 200
 201         if (suites & IWINFO_KMGMT_OWE)
 202                 pos += sprintf(pos, "OWE/");
 203
 204         if (!suites || (suites & IWINFO_KMGMT_NONE))
 205                 pos += sprintf(pos, "NONE/");
 206
 207         *(pos - 1) = 0;
 208
 209         return str;
 210 }
 211
 212 static char * format_encryption(struct iwinfo_crypto_entry *c)
 213 {
 214         static char buf[512];
 215         char *pos = buf;
 216         int i, n;
 217
 218         if (!c)
 219         {
 220                 snprintf(buf, sizeof(buf), "unknown");
 221         }
 222         else if (c->enabled)
 223         {
 224                 /* WEP */
 225                 if (c->auth_algs && !c->wpa_version)
 226                 {
 227                         if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
 228                                 (c->auth_algs & IWINFO_AUTH_SHARED))
 229                         {
 230                                 snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
 231                                         format_enc_ciphers(c->pair_ciphers));
 232                         }
 233                         else if (c->auth_algs & IWINFO_AUTH_OPEN)
 234                         {
 235                                 snprintf(buf, sizeof(buf), "WEP Open System (%s)",
 236                                         format_enc_ciphers(c->pair_ciphers));
 237                         }
 238                         else if (c->auth_algs & IWINFO_AUTH_SHARED)
 239                         {
 240                                 snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
 241                                         format_enc_ciphers(c->pair_ciphers));
 242                         }
 243                 }
 244
 245                 /* WPA */
 246                 else if (c->wpa_version)
 247                 {
 248                         for (i = 0, n = 0; i < 3; i++)
 249                                 if (c->wpa_version & (1 << i))
 250                                         n++;
 251
 252                         if (n > 1)
 253                                 pos += sprintf(pos, "mixed ");
 254
 255                         for (i = 0; i < 3; i++)
 256                                 if (c->wpa_version & (1 << i))
 257                                 {
 258                                         if (i)
 259                                                 pos += sprintf(pos, "WPA%d/", i + 1);
 260                                         else
 261                                                 pos += sprintf(pos, "WPA/");
 262                                 }
 263
 264                         pos--;
 265
 266                         sprintf(pos, " %s (%s)",
 267                                 format_enc_suites(c->auth_suites),
 268                                 format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
 269                 }
 270                 else
 271                 {
 272                         snprintf(buf, sizeof(buf), "none");
 273                 }
 274         }
 275         else
 276         {
 277                 snprintf(buf, sizeof(buf), "none");
 278         }
 279
 280         return buf;
 281 }
 282
 283 static char * format_hwmodes(int modes)
 284 {
 285         static char buf[17];
 286
 287         if (modes <= 0)
 288                 snprintf(buf, sizeof(buf), "unknown");
 289         else
 290                 snprintf(buf, sizeof(buf), "802.11%s%s%s%s%s%s%s",
 291                         (modes & IWINFO_80211_A) ? "a" : "",
 292                         (modes & IWINFO_80211_B) ? "b" : "",
 293                         (modes & IWINFO_80211_G) ? "g" : "",
 294                         (modes & IWINFO_80211_N) ? "n" : "",
 295                         (modes & IWINFO_80211_AC) ? "ac" : "",
 296                         (modes & IWINFO_80211_AD) ? "ad" : "",
 297                         (modes & IWINFO_80211_AX) ? "ax" : "");
 298
 299         return buf;
 300 }
 301
 302 static char * format_assocrate(struct iwinfo_rate_entry *r)
 303 {
 304         static char buf[80];
 305         char *p = buf;
 306         int l = sizeof(buf);
 307
 308         if (r->rate <= 0)
 309         {
 310                 snprintf(buf, sizeof(buf), "unknown");
 311         }
 312         else
 313         {
 314                 p += snprintf(p, l, "%s", format_rate(r->rate));
 315                 l = sizeof(buf) - (p - buf);
 316
 317                 if (r->is_ht)
 318                 {
 319                         p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, r->mhz);
 320                         l = sizeof(buf) - (p - buf);
 321                 }
 322                 else if (r->is_vht)
 323                 {
 324                         p += snprintf(p, l, ", VHT-MCS %d, %dMHz", r->mcs, r->mhz);
 325                         l = sizeof(buf) - (p - buf);
 326
 327                         if (r->nss)
 328                         {
 329                                 p += snprintf(p, l, ", VHT-NSS %d", r->nss);
 330                                 l = sizeof(buf) - (p - buf);
 331                         }
 332                 }
 333                 else if (r->is_he)
 334                 {
 335                         p += snprintf(p, l, ", HE-MCS %d, %dMHz", r->mcs, r->mhz);
 336                         l = sizeof(buf) - (p - buf);
 337
 338                         p += snprintf(p, l, ", HE-NSS %d", r->nss);
 339                         l = sizeof(buf) - (p - buf);
 340
 341                         p += snprintf(p, l, ", HE-GI %d", r->he_gi);
 342                         l = sizeof(buf) - (p - buf);
 343
 344                         p += snprintf(p, l, ", HE-DCM %d", r->he_dcm);
 345                         l = sizeof(buf) - (p - buf);
 346                 }
 347         }
 348
 349         return buf;
 350 }
 351
 352 static const char* format_chan_width(uint16_t width)
 353 {
 354         switch (width) {
 355                 case 20: return "20 MHz";
 356                 case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
 357                 case 40: return "40 MHz or lower";
 358                 case 80: return "80 MHz";
 359                 case 8080: return "80+80 MHz";
 360                 case 160: return "160 MHz";
 361         }
 362
 363         return "unknown";
 364 }
 365
 366
 367 static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
 368 {
 369         const char *type = iwinfo_type(ifname);
 370         return type ? type : "unknown";
 371 }
 372
 373 static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
 374 {
 375         static char buf[20];
 376         struct iwinfo_hardware_id ids;
 377
 378         if (!iw->hardware_id(ifname, (char *)&ids))
 379         {
 380                 snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
 381                         ids.vendor_id, ids.device_id,
 382                         ids.subsystem_vendor_id, ids.subsystem_device_id);
 383         }
 384         else
 385         {
 386                 snprintf(buf, sizeof(buf), "unknown");
 387         }
 388
 389         return buf;
 390 }
 391
 392 static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
 393 {
 394         static char buf[128];
 395
 396         if (iw->hardware_name(ifname, buf))
 397                 snprintf(buf, sizeof(buf), "unknown");
 398
 399         return buf;
 400 }
 401
 402 static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
 403 {
 404         int off;
 405         static char buf[12];
 406
 407         if (iw->txpower_offset(ifname, &off))
 408                 snprintf(buf, sizeof(buf), "unknown");
 409         else if (off != 0)
 410                 snprintf(buf, sizeof(buf), "%d dB", off);
 411         else
 412                 snprintf(buf, sizeof(buf), "none");
 413
 414         return buf;
 415 }
 416
 417 static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
 418 {
 419         int off;
 420         static char buf[12];
 421
 422         if (iw->frequency_offset(ifname, &off))
 423                 snprintf(buf, sizeof(buf), "unknown");
 424         else if (off != 0)
 425                 snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
 426         else
 427                 snprintf(buf, sizeof(buf), "none");
 428
 429         return buf;
 430 }
 431
 432 static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
 433 {
 434         char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
 435
 436         if (iw->ssid(ifname, buf))
 437                 memset(buf, 0, sizeof(buf));
 438
 439         return format_ssid(buf);
 440 }
 441
 442 static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
 443 {
 444         static char buf[18] = { 0 };
 445
 446         if (iw->bssid(ifname, buf))
 447                 snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
 448
 449         return buf;
 450 }
 451
 452 static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
 453 {
 454         int mode;
 455         static char buf[128];
 456
 457         if (iw->mode(ifname, &mode))
 458                 mode = IWINFO_OPMODE_UNKNOWN;
 459
 460         snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
 461
 462         return buf;
 463 }
 464
 465 static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
 466 {
 467         int ch;
 468         if (iw->channel(ifname, &ch))
 469                 ch = -1;
 470
 471         return format_channel(ch);
 472 }
 473
 474 static char * print_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
 475 {
 476         int ch;
 477         if (iw->center_chan1(ifname, &ch))
 478                 ch = -1;
 479
 480         return format_channel(ch);
 481 }
 482
 483 static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
 484 {
 485         int ch;
 486         if (iw->center_chan2(ifname, &ch))
 487                 ch = -1;
 488
 489         return format_channel(ch);
 490 }
 491
 492 static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
 493 {
 494         int freq;
 495         if (iw->frequency(ifname, &freq))
 496                 freq = -1;
 497
 498         return format_frequency(freq);
 499 }
 500
 501 static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
 502 {
 503         int pwr, off;
 504         if (iw->txpower_offset(ifname, &off))
 505                 off = 0;
 506
 507         if (iw->txpower(ifname, &pwr))
 508                 pwr = -1;
 509         else
 510                 pwr += off;
 511
 512         return format_txpower(pwr);
 513 }
 514
 515 static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
 516 {
 517         int qual;
 518         if (iw->quality(ifname, &qual))
 519                 qual = -1;
 520
 521         return format_quality(qual);
 522 }
 523
 524 static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
 525 {
 526         int qmax;
 527         if (iw->quality_max(ifname, &qmax))
 528                 qmax = -1;
 529
 530         return format_quality_max(qmax);
 531 }
 532
 533 static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
 534 {
 535         int sig;
 536         if (iw->signal(ifname, &sig))
 537                 sig = 0;
 538
 539         return format_signal(sig);
 540 }
 541
 542 static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
 543 {
 544         int noise;
 545         if (iw->noise(ifname, &noise))
 546                 noise = 0;
 547
 548         return format_noise(noise);
 549 }
 550
 551 static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
 552 {
 553         int rate;
 554         if (iw->bitrate(ifname, &rate))
 555                 rate = -1;
 556
 557         return format_rate(rate);
 558 }
 559
 560 static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
 561 {
 562         struct iwinfo_crypto_entry c = { 0 };
 563         if (iw->encryption(ifname, (char *)&c))
 564                 return format_encryption(NULL);
 565
 566         return format_encryption(&c);
 567 }
 568
 569 static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
 570 {
 571         int modes;
 572         if (iw->hwmodelist(ifname, &modes))
 573                 modes = -1;
 574
 575         return format_hwmodes(modes);
 576 }
 577
 578 static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
 579 {
 580         int supp;
 581         static char buf[4];
 582
 583         if (iw->mbssid_support(ifname, &supp))
 584                 snprintf(buf, sizeof(buf), "no");
 585         else
 586                 snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
 587
 588         return buf;
 589 }
 590
 591 static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
 592 {
 593         static char buf[32];
 594
 595         if (!iw->phyname(ifname, buf))
 596                 return buf;
 597
 598         return "?";
 599 }
 600
 601
 602 static void print_info(const struct iwinfo_ops *iw, const char *ifname)
 603 {
 604         printf("%-9s ESSID: %s\n",
 605                 ifname,
 606                 print_ssid(iw, ifname));
 607         printf("          Access Point: %s\n",
 608                 print_bssid(iw, ifname));
 609         printf("          Mode: %s  Channel: %s (%s)\n",
 610                 print_mode(iw, ifname),
 611                 print_channel(iw, ifname),
 612                 print_frequency(iw, ifname));
 613         if (iw->center_chan1 != NULL) {
 614                 printf("          Center Channel 1: %s",
 615                         print_center_chan1(iw, ifname));
 616                 printf(" 2: %s\n", print_center_chan2(iw, ifname));
 617         }
 618         printf("          Tx-Power: %s  Link Quality: %s/%s\n",
 619                 print_txpower(iw, ifname),
 620                 print_quality(iw, ifname),
 621                 print_quality_max(iw, ifname));
 622         printf("          Signal: %s  Noise: %s\n",
 623                 print_signal(iw, ifname),
 624                 print_noise(iw, ifname));
 625         printf("          Bit Rate: %s\n",
 626                 print_rate(iw, ifname));
 627         printf("          Encryption: %s\n",
 628                 print_encryption(iw, ifname));
 629         printf("          Type: %s  HW Mode(s): %s\n",
 630                 print_type(iw, ifname),
 631                 print_hwmodes(iw, ifname));
 632         printf("          Hardware: %s [%s]\n",
 633                 print_hardware_id(iw, ifname),
 634                 print_hardware_name(iw, ifname));
 635         printf("          TX power offset: %s\n",
 636                 print_txpower_offset(iw, ifname));
 637         printf("          Frequency offset: %s\n",
 638                 print_frequency_offset(iw, ifname));
 639         printf("          Supports VAPs: %s  PHY name: %s\n",
 640                 print_mbssid_supp(iw, ifname),
 641                 print_phyname(iw, ifname));
 642 }
 643
 644
 645 static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
 646 {
 647         int i, x, len;
 648         char buf[IWINFO_BUFSIZE];
 649         struct iwinfo_scanlist_entry *e;
 650
 651         if (iw->scanlist(ifname, buf, &len))
 652         {
 653                 printf("Scanning not possible\n\n");
 654                 return;
 655         }
 656         else if (len <= 0)
 657         {
 658                 printf("No scan results\n\n");
 659                 return;
 660         }
 661
 662         for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
 663         {
 664                 e = (struct iwinfo_scanlist_entry *) &buf[i];
 665
 666                 printf("Cell %02d - Address: %s\n",
 667                         x,
 668                         format_bssid(e->mac));
 669                 printf("          ESSID: %s\n",
 670                         format_ssid(e->ssid));
 671                 printf("          Mode: %s  Channel: %s\n",
 672                         IWINFO_OPMODE_NAMES[e->mode],
 673                         format_channel(e->channel));
 674                 printf("          Signal: %s  Quality: %s/%s\n",
 675                         format_signal(e->signal - 0x100),
 676                         format_quality(e->quality),
 677                         format_quality_max(e->quality_max));
 678                 printf("          Encryption: %s\n",
 679                         format_encryption(&e->crypto));
 680                 printf("          HT Operation:\n");
 681                 printf("                    Primary Channel: %d\n",
 682                         e->ht_chan_info.primary_chan);
 683                 printf("                    Secondary Channel Offset: %s\n",
 684                         ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
 685                 printf("                    Channel Width: %s\n",
 686                         format_chan_width(e->ht_chan_info.chan_width));
 687
 688                 if (e->vht_chan_info.center_chan_1) {
 689                         printf("          VHT Operation:\n");
 690                         printf("                    Channel Width: %s\n",
 691                                 format_chan_width(e->vht_chan_info.chan_width));
 692                         printf("                    Center Frequency 1: %d\n",
 693                                  e->vht_chan_info.center_chan_1);
 694                         printf("                    Center Frequency 2: %d\n",
 695                                  e->vht_chan_info.center_chan_2);
 696                 }
 697
 698                 printf("\n");
 699         }
 700 }
 701
 702
 703 static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
 704 {
 705         int len, pwr, off, i;
 706         char buf[IWINFO_BUFSIZE];
 707         struct iwinfo_txpwrlist_entry *e;
 708
 709         if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
 710         {
 711                 printf("No TX power information available\n");
 712                 return;
 713         }
 714
 715         if (iw->txpower(ifname, &pwr))
 716                 pwr = -1;
 717
 718         if (iw->txpower_offset(ifname, &off))
 719                 off = 0;
 720
 721         for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 722         {
 723                 e = (struct iwinfo_txpwrlist_entry *) &buf[i];
 724
 725                 printf("%s%3d dBm (%4d mW)\n",
 726                         (pwr == e->dbm) ? "*" : " ",
 727                         e->dbm + off,
 728                         iwinfo_dbm2mw(e->dbm + off));
 729         }
 730 }
 731
 732
 733 static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
 734 {
 735         int i, len, ch;
 736         char buf[IWINFO_BUFSIZE];
 737         struct iwinfo_freqlist_entry *e;
 738
 739         if (iw->freqlist(ifname, buf, &len) || len <= 0)
 740         {
 741                 printf("No frequency information available\n");
 742                 return;
 743         }
 744
 745         if (iw->channel(ifname, &ch))
 746                 ch = -1;
 747
 748         for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 749         {
 750                 e = (struct iwinfo_freqlist_entry *) &buf[i];
 751
 752                 printf("%s %s (Channel %s)%s\n",
 753                         (ch == e->channel) ? "*" : " ",
 754                         format_frequency(e->mhz),
 755                         format_channel(e->channel),
 756                         e->restricted ? " [restricted]" : "");
 757         }
 758 }
 759
 760
 761 static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
 762 {
 763         int i, len;
 764         char buf[IWINFO_BUFSIZE];
 765         struct iwinfo_assoclist_entry *e;
 766
 767         if (iw->assoclist(ifname, buf, &len))
 768         {
 769                 printf("No information available\n");
 770                 return;
 771         }
 772         else if (len <= 0)
 773         {
 774                 printf("No station connected\n");
 775                 return;
 776         }
 777
 778         for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 779         {
 780                 e = (struct iwinfo_assoclist_entry *) &buf[i];
 781
 782                 printf("%s  %s / %s (SNR %d)  %d ms ago\n",
 783                         format_bssid(e->mac),
 784                         format_signal(e->signal),
 785                         format_noise(e->noise),
 786                         (e->signal - e->noise),
 787                         e->inactive);
 788
 789                 printf("        RX: %-38s  %8d Pkts.\n",
 790                         format_assocrate(&e->rx_rate),
 791                         e->rx_packets
 792                 );
 793
 794                 printf("        TX: %-38s  %8d Pkts.\n",
 795                         format_assocrate(&e->tx_rate),
 796                         e->tx_packets
 797                 );
 798
 799                 printf("        expected throughput: %s\n\n",
 800                         format_rate(e->thr));
 801         }
 802 }
 803
 804
 805 static char * lookup_country(char *buf, int len, int iso3166)
 806 {
 807         int i;
 808         struct iwinfo_country_entry *c;
 809
 810         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 811         {
 812                 c = (struct iwinfo_country_entry *) &buf[i];
 813
 814                 if (c->iso3166 == iso3166)
 815                         return c->ccode;
 816         }
 817
 818         return NULL;
 819 }
 820
 821 static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
 822 {
 823         int len;
 824         char buf[IWINFO_BUFSIZE];
 825         char *ccode;
 826         char curcode[3];
 827         const struct iwinfo_iso3166_label *l;
 828
 829         if (iw->countrylist(ifname, buf, &len))
 830         {
 831                 printf("No country code information available\n");
 832                 return;
 833         }
 834
 835         if (iw->country(ifname, curcode))
 836                 memset(curcode, 0, sizeof(curcode));
 837
 838         for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 839         {
 840                 if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
 841                 {
 842                         printf("%s %4s  %c%c\n",
 843                                 strncmp(ccode, curcode, 2) ? " " : "*",
 844                                 ccode, (l->iso3166 / 256), (l->iso3166 % 256));
 845                 }
 846         }
 847 }
 848
 849 static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
 850 {
 851         int i, htmodes = 0;
 852
 853         if (iw->htmodelist(ifname, &htmodes))
 854         {
 855                 printf("No HT mode information available\n");
 856                 return;
 857         }
 858
 859         for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
 860                 if (htmodes & (1 << i))
 861                         printf("%s ", IWINFO_HTMODE_NAMES[i]);
 862
 863         printf("\n");
 864 }
 865
 866 static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
 867 {
 868         char buf[IWINFO_BUFSIZE];
 869
 870         if (!iw->lookup_phy)
 871         {
 872                 fprintf(stderr, "Not supported\n");
 873                 return;
 874         }
 875
 876         if (iw->lookup_phy(section, buf))
 877         {
 878                 fprintf(stderr, "Phy not found\n");
 879                 return;
 880         }
 881
 882         printf("%s\n", buf);
 883 }
 884
 885
 886 static void lookup_path(const struct iwinfo_ops *iw, const char *phy)
 887 {
 888         const char *path;
 889
 890         if (!iw->phy_path || iw->phy_path(phy, &path) || !path)
 891                 return;
 892
 893         printf("%s\n", path);
 894 }
 895
 896 int main(int argc, char **argv)
 897 {
 898         int i, rv = 0;
 899         char *p;
 900         const struct iwinfo_ops *iw;
 901         glob_t globbuf;
 902
 903         if (argc > 1 && argc < 3)
 904         {
 905                 fprintf(stderr,
 906                         "Usage:\n"
 907                         "       iwinfo <device> info\n"
 908                         "       iwinfo <device> scan\n"
 909                         "       iwinfo <device> txpowerlist\n"
 910                         "       iwinfo <device> freqlist\n"
 911                         "       iwinfo <device> assoclist\n"
 912                         "       iwinfo <device> countrylist\n"
 913                         "       iwinfo <device> htmodelist\n"
 914                         "       iwinfo <backend> phyname <section>\n"
 915                 );
 916
 917                 return 1;
 918         }
 919
 920         if (argc == 1)
 921         {
 922                 glob("/sys/class/net/*", 0, NULL, &globbuf);
 923
 924                 for (i = 0; i < globbuf.gl_pathc; i++)
 925                 {
 926                         p = strrchr(globbuf.gl_pathv[i], '/');
 927
 928                         if (!p)
 929                                 continue;
 930
 931                         iw = iwinfo_backend(++p);
 932
 933                         if (!iw)
 934                                 continue;
 935
 936                         print_info(iw, p);
 937                         printf("\n");
 938                 }
 939
 940                 globfree(&globbuf);
 941                 return 0;
 942         }
 943
 944         if (argc > 3)
 945         {
 946                 iw = iwinfo_backend_by_name(argv[1]);
 947
 948                 if (!iw)
 949                 {
 950                         fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
 951                         rv = 1;
 952                 }
 953                 else
 954                 {
 955                         if (!strcmp(argv[2], "path")) {
 956                                 lookup_path(iw, argv[3]);
 957                                 return 0;
 958                         }
 959                         switch (argv[2][0])
 960                         {
 961                         case 'p':
 962                                 lookup_phy(iw, argv[3]);
 963                                 break;
 964
 965                         default:
 966                                 fprintf(stderr, "Unknown command: %s\n", argv[2]);
 967                                 rv = 1;
 968                         }
 969                 }
 970         }
 971         else
 972         {
 973                 iw = iwinfo_backend(argv[1]);
 974
 975                 if (!iw)
 976                 {
 977                         fprintf(stderr, "No such wireless device: %s\n", argv[1]);
 978                         rv = 1;
 979                 }
 980                 else
 981                 {
 982                         for (i = 2; i < argc; i++)
 983                         {
 984                                 switch(argv[i][0])
 985                                 {
 986                                 case 'i':
 987                                         print_info(iw, argv[1]);
 988                                         break;
 989
 990                                 case 's':
 991                                         print_scanlist(iw, argv[1]);
 992                                         break;
 993
 994                                 case 't':
 995                                         print_txpwrlist(iw, argv[1]);
 996                                         break;
 997
 998                                 case 'f':
 999                                         print_freqlist(iw, argv[1]);
1000                                         break;
1001
1002                                 case 'a':
1003                                         print_assoclist(iw, argv[1]);
1004                                         break;
1005
1006                                 case 'c':
1007                                         print_countrylist(iw, argv[1]);
1008                                         break;
1009
1010                                 case 'h':
1011                                         print_htmodelist(iw, argv[1]);
1012                                         break;
1013
1014                                 default:
1015                                         fprintf(stderr, "Unknown command: %s\n", argv[i]);
1016                                         rv = 1;
1017                                 }
1018                         }
1019                 }
1020         }
1021
1022         iwinfo_finish();
1023
1024         return rv;
1025 }