840 lines
17 KiB
C
840 lines
17 KiB
C
/*
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* iwinfo - Wireless Information Library - Command line frontend
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*
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* Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
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*
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* The iwinfo library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* The iwinfo library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the iwinfo library. If not, see http://www.gnu.org/licenses/.
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*/
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#include <stdio.h>
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#include <glob.h>
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#include "iwinfo.h"
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static char * format_bssid(unsigned char *mac)
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{
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static char buf[18];
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snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X",
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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return buf;
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}
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static char * format_ssid(char *ssid)
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{
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static char buf[IWINFO_ESSID_MAX_SIZE+3];
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if (ssid && ssid[0])
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snprintf(buf, sizeof(buf), "\"%s\"", ssid);
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else
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snprintf(buf, sizeof(buf), "unknown");
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return buf;
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}
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static char * format_channel(int ch)
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{
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static char buf[8];
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if (ch <= 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d", ch);
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return buf;
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}
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static char * format_frequency(int freq)
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{
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static char buf[10];
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if (freq <= 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0));
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return buf;
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}
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static char * format_txpower(int pwr)
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{
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static char buf[10];
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if (pwr < 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d dBm", pwr);
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return buf;
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}
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static char * format_quality(int qual)
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{
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static char buf[8];
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if (qual < 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d", qual);
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return buf;
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}
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static char * format_quality_max(int qmax)
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{
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static char buf[8];
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if (qmax < 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d", qmax);
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return buf;
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}
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static char * format_signal(int sig)
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{
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static char buf[10];
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if (!sig)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d dBm", sig);
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return buf;
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}
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static char * format_noise(int noise)
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{
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static char buf[10];
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if (!noise)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d dBm", noise);
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return buf;
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}
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static char * format_rate(int rate)
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{
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static char buf[14];
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if (rate <= 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "%d.%d MBit/s",
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rate / 1000, (rate % 1000) / 100);
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return buf;
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}
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static char * format_enc_ciphers(int ciphers)
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{
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static char str[128] = { 0 };
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char *pos = str;
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if (ciphers & IWINFO_CIPHER_WEP40)
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pos += sprintf(pos, "WEP-40, ");
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if (ciphers & IWINFO_CIPHER_WEP104)
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pos += sprintf(pos, "WEP-104, ");
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if (ciphers & IWINFO_CIPHER_TKIP)
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pos += sprintf(pos, "TKIP, ");
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if (ciphers & IWINFO_CIPHER_CCMP)
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pos += sprintf(pos, "CCMP, ");
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if (ciphers & IWINFO_CIPHER_WRAP)
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pos += sprintf(pos, "WRAP, ");
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if (ciphers & IWINFO_CIPHER_AESOCB)
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pos += sprintf(pos, "AES-OCB, ");
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if (ciphers & IWINFO_CIPHER_CKIP)
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pos += sprintf(pos, "CKIP, ");
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if (!ciphers || (ciphers & IWINFO_CIPHER_NONE))
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pos += sprintf(pos, "NONE, ");
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*(pos - 2) = 0;
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return str;
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}
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static char * format_enc_suites(int suites)
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{
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static char str[64] = { 0 };
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char *pos = str;
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if (suites & IWINFO_KMGMT_PSK)
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pos += sprintf(pos, "PSK/");
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if (suites & IWINFO_KMGMT_8021x)
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pos += sprintf(pos, "802.1X/");
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if (!suites || (suites & IWINFO_KMGMT_NONE))
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pos += sprintf(pos, "NONE/");
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*(pos - 1) = 0;
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return str;
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}
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static char * format_encryption(struct iwinfo_crypto_entry *c)
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{
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static char buf[512];
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if (!c)
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{
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snprintf(buf, sizeof(buf), "unknown");
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}
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else if (c->enabled)
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{
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/* WEP */
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if (c->auth_algs && !c->wpa_version)
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{
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if ((c->auth_algs & IWINFO_AUTH_OPEN) &&
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(c->auth_algs & IWINFO_AUTH_SHARED))
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{
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snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)",
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format_enc_ciphers(c->pair_ciphers));
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}
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else if (c->auth_algs & IWINFO_AUTH_OPEN)
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{
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snprintf(buf, sizeof(buf), "WEP Open System (%s)",
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format_enc_ciphers(c->pair_ciphers));
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}
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else if (c->auth_algs & IWINFO_AUTH_SHARED)
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{
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snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)",
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format_enc_ciphers(c->pair_ciphers));
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}
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}
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/* WPA */
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else if (c->wpa_version)
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{
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switch (c->wpa_version) {
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case 3:
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snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)",
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format_enc_suites(c->auth_suites),
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format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
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break;
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case 2:
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snprintf(buf, sizeof(buf), "WPA2 %s (%s)",
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format_enc_suites(c->auth_suites),
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format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
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break;
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case 1:
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snprintf(buf, sizeof(buf), "WPA %s (%s)",
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format_enc_suites(c->auth_suites),
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format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
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break;
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}
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}
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else
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{
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snprintf(buf, sizeof(buf), "none");
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}
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}
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else
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{
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snprintf(buf, sizeof(buf), "none");
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}
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return buf;
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}
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static char * format_hwmodes(int modes)
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{
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static char buf[12];
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if (modes <= 0)
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snprintf(buf, sizeof(buf), "unknown");
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else
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snprintf(buf, sizeof(buf), "802.11%s%s%s%s%s",
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(modes & IWINFO_80211_A) ? "a" : "",
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(modes & IWINFO_80211_B) ? "b" : "",
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(modes & IWINFO_80211_G) ? "g" : "",
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(modes & IWINFO_80211_N) ? "n" : "",
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(modes & IWINFO_80211_AC) ? "ac" : "");
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return buf;
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}
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static char * format_assocrate(struct iwinfo_rate_entry *r)
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{
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static char buf[40];
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char *p = buf;
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int l = sizeof(buf);
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if (r->rate <= 0)
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{
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snprintf(buf, sizeof(buf), "unknown");
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}
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else
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{
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p += snprintf(p, l, "%s", format_rate(r->rate));
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l = sizeof(buf) - (p - buf);
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if (r->mcs >= 0)
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{
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p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20);
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l = sizeof(buf) - (p - buf);
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if (r->is_short_gi)
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p += snprintf(p, l, ", short GI");
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}
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}
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return buf;
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}
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static const char * print_type(const struct iwinfo_ops *iw, const char *ifname)
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{
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const char *type = iwinfo_type(ifname);
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return type ? type : "unknown";
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}
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static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname)
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{
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static char buf[20];
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struct iwinfo_hardware_id ids;
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if (!iw->hardware_id(ifname, (char *)&ids))
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{
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snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X",
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ids.vendor_id, ids.device_id,
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ids.subsystem_vendor_id, ids.subsystem_device_id);
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}
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else
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{
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snprintf(buf, sizeof(buf), "unknown");
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}
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return buf;
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}
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static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname)
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{
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static char buf[128];
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if (iw->hardware_name(ifname, buf))
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snprintf(buf, sizeof(buf), "unknown");
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return buf;
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}
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static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname)
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{
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int off;
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static char buf[12];
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if (iw->txpower_offset(ifname, &off))
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snprintf(buf, sizeof(buf), "unknown");
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else if (off != 0)
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snprintf(buf, sizeof(buf), "%d dB", off);
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else
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snprintf(buf, sizeof(buf), "none");
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return buf;
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}
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static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname)
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{
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int off;
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static char buf[12];
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if (iw->frequency_offset(ifname, &off))
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snprintf(buf, sizeof(buf), "unknown");
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else if (off != 0)
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snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0));
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else
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snprintf(buf, sizeof(buf), "none");
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return buf;
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}
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static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname)
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{
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char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 };
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if (iw->ssid(ifname, buf))
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memset(buf, 0, sizeof(buf));
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return format_ssid(buf);
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}
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static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname)
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{
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static char buf[18] = { 0 };
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if (iw->bssid(ifname, buf))
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snprintf(buf, sizeof(buf), "00:00:00:00:00:00");
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return buf;
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}
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static char * print_mode(const struct iwinfo_ops *iw, const char *ifname)
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{
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int mode;
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static char buf[128];
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if (iw->mode(ifname, &mode))
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mode = IWINFO_OPMODE_UNKNOWN;
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snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]);
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return buf;
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}
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static char * print_channel(const struct iwinfo_ops *iw, const char *ifname)
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{
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int ch;
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if (iw->channel(ifname, &ch))
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ch = -1;
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return format_channel(ch);
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}
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static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname)
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{
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int freq;
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if (iw->frequency(ifname, &freq))
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freq = -1;
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return format_frequency(freq);
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}
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static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname)
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{
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int pwr, off;
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if (iw->txpower_offset(ifname, &off))
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off = 0;
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if (iw->txpower(ifname, &pwr))
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pwr = -1;
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else
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pwr += off;
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return format_txpower(pwr);
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}
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static char * print_quality(const struct iwinfo_ops *iw, const char *ifname)
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{
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int qual;
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if (iw->quality(ifname, &qual))
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qual = -1;
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return format_quality(qual);
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}
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static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname)
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{
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int qmax;
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if (iw->quality_max(ifname, &qmax))
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qmax = -1;
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return format_quality_max(qmax);
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}
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static char * print_signal(const struct iwinfo_ops *iw, const char *ifname)
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{
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int sig;
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if (iw->signal(ifname, &sig))
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sig = 0;
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return format_signal(sig);
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}
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static char * print_noise(const struct iwinfo_ops *iw, const char *ifname)
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{
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int noise;
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if (iw->noise(ifname, &noise))
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noise = 0;
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return format_noise(noise);
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}
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static char * print_rate(const struct iwinfo_ops *iw, const char *ifname)
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{
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int rate;
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if (iw->bitrate(ifname, &rate))
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rate = -1;
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return format_rate(rate);
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}
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static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname)
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{
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struct iwinfo_crypto_entry c = { 0 };
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if (iw->encryption(ifname, (char *)&c))
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return format_encryption(NULL);
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return format_encryption(&c);
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}
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static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname)
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{
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int modes;
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if (iw->hwmodelist(ifname, &modes))
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modes = -1;
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return format_hwmodes(modes);
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}
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static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname)
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{
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int supp;
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static char buf[4];
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if (iw->mbssid_support(ifname, &supp))
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snprintf(buf, sizeof(buf), "no");
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else
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snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no");
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return buf;
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}
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static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname)
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{
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static char buf[32];
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if (!iw->phyname(ifname, buf))
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return buf;
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return "?";
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}
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static void print_info(const struct iwinfo_ops *iw, const char *ifname)
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{
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printf("%-9s ESSID: %s\n",
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ifname,
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print_ssid(iw, ifname));
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printf(" Access Point: %s\n",
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print_bssid(iw, ifname));
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printf(" Mode: %s Channel: %s (%s)\n",
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print_mode(iw, ifname),
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print_channel(iw, ifname),
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print_frequency(iw, ifname));
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printf(" Tx-Power: %s Link Quality: %s/%s\n",
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print_txpower(iw, ifname),
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print_quality(iw, ifname),
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print_quality_max(iw, ifname));
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printf(" Signal: %s Noise: %s\n",
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print_signal(iw, ifname),
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print_noise(iw, ifname));
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printf(" Bit Rate: %s\n",
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print_rate(iw, ifname));
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printf(" Encryption: %s\n",
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print_encryption(iw, ifname));
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printf(" Type: %s HW Mode(s): %s\n",
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print_type(iw, ifname),
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print_hwmodes(iw, ifname));
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printf(" Hardware: %s [%s]\n",
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print_hardware_id(iw, ifname),
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print_hardware_name(iw, ifname));
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printf(" TX power offset: %s\n",
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print_txpower_offset(iw, ifname));
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printf(" Frequency offset: %s\n",
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print_frequency_offset(iw, ifname));
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printf(" Supports VAPs: %s PHY name: %s\n",
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print_mbssid_supp(iw, ifname),
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print_phyname(iw, ifname));
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}
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static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname)
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{
|
|
int i, x, len;
|
|
char buf[IWINFO_BUFSIZE];
|
|
struct iwinfo_scanlist_entry *e;
|
|
|
|
if (iw->scanlist(ifname, buf, &len))
|
|
{
|
|
printf("Scanning not possible\n\n");
|
|
return;
|
|
}
|
|
else if (len <= 0)
|
|
{
|
|
printf("No scan results\n\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0, x = 1; i < len; i += sizeof(struct iwinfo_scanlist_entry), x++)
|
|
{
|
|
e = (struct iwinfo_scanlist_entry *) &buf[i];
|
|
|
|
printf("Cell %02d - Address: %s\n",
|
|
x,
|
|
format_bssid(e->mac));
|
|
printf(" ESSID: %s\n",
|
|
format_ssid(e->ssid));
|
|
printf(" Mode: %s Channel: %s\n",
|
|
IWINFO_OPMODE_NAMES[e->mode],
|
|
format_channel(e->channel));
|
|
printf(" Signal: %s Quality: %s/%s\n",
|
|
format_signal(e->signal - 0x100),
|
|
format_quality(e->quality),
|
|
format_quality_max(e->quality_max));
|
|
printf(" Encryption: %s\n\n",
|
|
format_encryption(&e->crypto));
|
|
}
|
|
}
|
|
|
|
|
|
static void print_txpwrlist(const struct iwinfo_ops *iw, const char *ifname)
|
|
{
|
|
int len, pwr, off, i;
|
|
char buf[IWINFO_BUFSIZE];
|
|
struct iwinfo_txpwrlist_entry *e;
|
|
|
|
if (iw->txpwrlist(ifname, buf, &len) || len <= 0)
|
|
{
|
|
printf("No TX power information available\n");
|
|
return;
|
|
}
|
|
|
|
if (iw->txpower(ifname, &pwr))
|
|
pwr = -1;
|
|
|
|
if (iw->txpower_offset(ifname, &off))
|
|
off = 0;
|
|
|
|
for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
|
|
{
|
|
e = (struct iwinfo_txpwrlist_entry *) &buf[i];
|
|
|
|
printf("%s%3d dBm (%4d mW)\n",
|
|
(pwr == e->dbm) ? "*" : " ",
|
|
e->dbm + off,
|
|
iwinfo_dbm2mw(e->dbm + off));
|
|
}
|
|
}
|
|
|
|
|
|
static void print_freqlist(const struct iwinfo_ops *iw, const char *ifname)
|
|
{
|
|
int i, len, ch;
|
|
char buf[IWINFO_BUFSIZE];
|
|
struct iwinfo_freqlist_entry *e;
|
|
|
|
if (iw->freqlist(ifname, buf, &len) || len <= 0)
|
|
{
|
|
printf("No frequency information available\n");
|
|
return;
|
|
}
|
|
|
|
if (iw->channel(ifname, &ch))
|
|
ch = -1;
|
|
|
|
for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
|
|
{
|
|
e = (struct iwinfo_freqlist_entry *) &buf[i];
|
|
|
|
printf("%s %s (Channel %s)%s\n",
|
|
(ch == e->channel) ? "*" : " ",
|
|
format_frequency(e->mhz),
|
|
format_channel(e->channel),
|
|
e->restricted ? " [restricted]" : "");
|
|
}
|
|
}
|
|
|
|
|
|
static void print_assoclist(const struct iwinfo_ops *iw, const char *ifname)
|
|
{
|
|
int i, len;
|
|
char buf[IWINFO_BUFSIZE];
|
|
struct iwinfo_assoclist_entry *e;
|
|
|
|
if (iw->assoclist(ifname, buf, &len))
|
|
{
|
|
printf("No information available\n");
|
|
return;
|
|
}
|
|
else if (len <= 0)
|
|
{
|
|
printf("No station connected\n");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
|
|
{
|
|
e = (struct iwinfo_assoclist_entry *) &buf[i];
|
|
|
|
printf("%s %s / %s (SNR %d) %d ms ago\n",
|
|
format_bssid(e->mac),
|
|
format_signal(e->signal),
|
|
format_noise(e->noise),
|
|
(e->signal - e->noise),
|
|
e->inactive);
|
|
|
|
printf(" RX: %-38s %8d Pkts.\n",
|
|
format_assocrate(&e->rx_rate),
|
|
e->rx_packets
|
|
);
|
|
|
|
printf(" TX: %-38s %8d Pkts.\n\n",
|
|
format_assocrate(&e->tx_rate),
|
|
e->tx_packets
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
static char * lookup_country(char *buf, int len, int iso3166)
|
|
{
|
|
int i;
|
|
struct iwinfo_country_entry *c;
|
|
|
|
for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
|
|
{
|
|
c = (struct iwinfo_country_entry *) &buf[i];
|
|
|
|
if (c->iso3166 == iso3166)
|
|
return c->ccode;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void print_countrylist(const struct iwinfo_ops *iw, const char *ifname)
|
|
{
|
|
int len;
|
|
char buf[IWINFO_BUFSIZE];
|
|
char *ccode;
|
|
char curcode[3];
|
|
const struct iwinfo_iso3166_label *l;
|
|
|
|
if (iw->countrylist(ifname, buf, &len))
|
|
{
|
|
printf("No country code information available\n");
|
|
return;
|
|
}
|
|
|
|
if (iw->country(ifname, curcode))
|
|
memset(curcode, 0, sizeof(curcode));
|
|
|
|
for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
|
|
{
|
|
if ((ccode = lookup_country(buf, len, l->iso3166)) != NULL)
|
|
{
|
|
printf("%s %4s %c%c\n",
|
|
strncmp(ccode, curcode, 2) ? " " : "*",
|
|
ccode, (l->iso3166 / 256), (l->iso3166 % 256));
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int i;
|
|
char *p;
|
|
const struct iwinfo_ops *iw;
|
|
glob_t globbuf;
|
|
|
|
if (argc > 1 && argc < 3)
|
|
{
|
|
fprintf(stderr,
|
|
"Usage:\n"
|
|
" iwinfo <device> info\n"
|
|
" iwinfo <device> scan\n"
|
|
" iwinfo <device> txpowerlist\n"
|
|
" iwinfo <device> freqlist\n"
|
|
" iwinfo <device> assoclist\n"
|
|
" iwinfo <device> countrylist\n"
|
|
);
|
|
|
|
return 1;
|
|
}
|
|
|
|
if (argc == 1)
|
|
{
|
|
glob("/sys/class/net/*", 0, NULL, &globbuf);
|
|
|
|
for (i = 0; i < globbuf.gl_pathc; i++)
|
|
{
|
|
p = strrchr(globbuf.gl_pathv[i], '/');
|
|
|
|
if (!p)
|
|
continue;
|
|
|
|
iw = iwinfo_backend(++p);
|
|
|
|
if (!iw)
|
|
continue;
|
|
|
|
print_info(iw, p);
|
|
printf("\n");
|
|
}
|
|
|
|
globfree(&globbuf);
|
|
return 0;
|
|
}
|
|
|
|
iw = iwinfo_backend(argv[1]);
|
|
|
|
if (!iw)
|
|
{
|
|
fprintf(stderr, "No such wireless device: %s\n", argv[1]);
|
|
return 1;
|
|
}
|
|
|
|
for (i = 2; i < argc; i++)
|
|
{
|
|
switch(argv[i][0])
|
|
{
|
|
case 'i':
|
|
print_info(iw, argv[1]);
|
|
break;
|
|
|
|
case 's':
|
|
print_scanlist(iw, argv[1]);
|
|
break;
|
|
|
|
case 't':
|
|
print_txpwrlist(iw, argv[1]);
|
|
break;
|
|
|
|
case 'f':
|
|
print_freqlist(iw, argv[1]);
|
|
break;
|
|
|
|
case 'a':
|
|
print_assoclist(iw, argv[1]);
|
|
break;
|
|
|
|
case 'c':
|
|
print_countrylist(iw, argv[1]);
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "Unknown command: %s\n", argv[i]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
iwinfo_finish();
|
|
|
|
return 0;
|
|
}
|