From 8ae758db52957939eeb6bc1c7da7be9d0339d3aa Mon Sep 17 00:00:00 2001 From: Jo-Philipp Wich Date: Sun, 5 Oct 2014 19:56:27 +0200 Subject: Initial commit Signed-off-by: Jo-Philipp Wich --- iwinfo_cli.c | 839 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 839 insertions(+) create mode 100644 iwinfo_cli.c (limited to 'iwinfo_cli.c') diff --git a/iwinfo_cli.c b/iwinfo_cli.c new file mode 100644 index 0000000..891f77e --- /dev/null +++ b/iwinfo_cli.c @@ -0,0 +1,839 @@ +/* + * iwinfo - Wireless Information Library - Command line frontend + * + * Copyright (C) 2011 Jo-Philipp Wich + * + * The iwinfo library is free software: you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * The iwinfo library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with the iwinfo library. If not, see http://www.gnu.org/licenses/. + */ + +#include +#include + +#include "iwinfo.h" + + +static char * format_bssid(unsigned char *mac) +{ + static char buf[18]; + + snprintf(buf, sizeof(buf), "%02X:%02X:%02X:%02X:%02X:%02X", + mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); + + return buf; +} + +static char * format_ssid(char *ssid) +{ + static char buf[IWINFO_ESSID_MAX_SIZE+3]; + + if (ssid && ssid[0]) + snprintf(buf, sizeof(buf), "\"%s\"", ssid); + else + snprintf(buf, sizeof(buf), "unknown"); + + return buf; +} + +static char * format_channel(int ch) +{ + static char buf[8]; + + if (ch <= 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d", ch); + + return buf; +} + +static char * format_frequency(int freq) +{ + static char buf[10]; + + if (freq <= 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%.3f GHz", ((float)freq / 1000.0)); + + return buf; +} + +static char * format_txpower(int pwr) +{ + static char buf[10]; + + if (pwr < 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d dBm", pwr); + + return buf; +} + +static char * format_quality(int qual) +{ + static char buf[8]; + + if (qual < 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d", qual); + + return buf; +} + +static char * format_quality_max(int qmax) +{ + static char buf[8]; + + if (qmax < 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d", qmax); + + return buf; +} + +static char * format_signal(int sig) +{ + static char buf[10]; + + if (!sig) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d dBm", sig); + + return buf; +} + +static char * format_noise(int noise) +{ + static char buf[10]; + + if (!noise) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d dBm", noise); + + return buf; +} + +static char * format_rate(int rate) +{ + static char buf[14]; + + if (rate <= 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "%d.%d MBit/s", + rate / 1000, (rate % 1000) / 100); + + return buf; +} + +static char * format_enc_ciphers(int ciphers) +{ + static char str[128] = { 0 }; + char *pos = str; + + if (ciphers & IWINFO_CIPHER_WEP40) + pos += sprintf(pos, "WEP-40, "); + + if (ciphers & IWINFO_CIPHER_WEP104) + pos += sprintf(pos, "WEP-104, "); + + if (ciphers & IWINFO_CIPHER_TKIP) + pos += sprintf(pos, "TKIP, "); + + if (ciphers & IWINFO_CIPHER_CCMP) + pos += sprintf(pos, "CCMP, "); + + if (ciphers & IWINFO_CIPHER_WRAP) + pos += sprintf(pos, "WRAP, "); + + if (ciphers & IWINFO_CIPHER_AESOCB) + pos += sprintf(pos, "AES-OCB, "); + + if (ciphers & IWINFO_CIPHER_CKIP) + pos += sprintf(pos, "CKIP, "); + + if (!ciphers || (ciphers & IWINFO_CIPHER_NONE)) + pos += sprintf(pos, "NONE, "); + + *(pos - 2) = 0; + + return str; +} + +static char * format_enc_suites(int suites) +{ + static char str[64] = { 0 }; + char *pos = str; + + if (suites & IWINFO_KMGMT_PSK) + pos += sprintf(pos, "PSK/"); + + if (suites & IWINFO_KMGMT_8021x) + pos += sprintf(pos, "802.1X/"); + + if (!suites || (suites & IWINFO_KMGMT_NONE)) + pos += sprintf(pos, "NONE/"); + + *(pos - 1) = 0; + + return str; +} + +static char * format_encryption(struct iwinfo_crypto_entry *c) +{ + static char buf[512]; + + if (!c) + { + snprintf(buf, sizeof(buf), "unknown"); + } + else if (c->enabled) + { + /* WEP */ + if (c->auth_algs && !c->wpa_version) + { + if ((c->auth_algs & IWINFO_AUTH_OPEN) && + (c->auth_algs & IWINFO_AUTH_SHARED)) + { + snprintf(buf, sizeof(buf), "WEP Open/Shared (%s)", + format_enc_ciphers(c->pair_ciphers)); + } + else if (c->auth_algs & IWINFO_AUTH_OPEN) + { + snprintf(buf, sizeof(buf), "WEP Open System (%s)", + format_enc_ciphers(c->pair_ciphers)); + } + else if (c->auth_algs & IWINFO_AUTH_SHARED) + { + snprintf(buf, sizeof(buf), "WEP Shared Auth (%s)", + format_enc_ciphers(c->pair_ciphers)); + } + } + + /* WPA */ + else if (c->wpa_version) + { + switch (c->wpa_version) { + case 3: + snprintf(buf, sizeof(buf), "mixed WPA/WPA2 %s (%s)", + format_enc_suites(c->auth_suites), + format_enc_ciphers(c->pair_ciphers | c->group_ciphers)); + break; + + case 2: + snprintf(buf, sizeof(buf), "WPA2 %s (%s)", + format_enc_suites(c->auth_suites), + format_enc_ciphers(c->pair_ciphers | c->group_ciphers)); + break; + + case 1: + snprintf(buf, sizeof(buf), "WPA %s (%s)", + format_enc_suites(c->auth_suites), + format_enc_ciphers(c->pair_ciphers | c->group_ciphers)); + break; + } + } + else + { + snprintf(buf, sizeof(buf), "none"); + } + } + else + { + snprintf(buf, sizeof(buf), "none"); + } + + return buf; +} + +static char * format_hwmodes(int modes) +{ + static char buf[12]; + + if (modes <= 0) + snprintf(buf, sizeof(buf), "unknown"); + else + snprintf(buf, sizeof(buf), "802.11%s%s%s%s%s", + (modes & IWINFO_80211_A) ? "a" : "", + (modes & IWINFO_80211_B) ? "b" : "", + (modes & IWINFO_80211_G) ? "g" : "", + (modes & IWINFO_80211_N) ? "n" : "", + (modes & IWINFO_80211_AC) ? "ac" : ""); + + return buf; +} + +static char * format_assocrate(struct iwinfo_rate_entry *r) +{ + static char buf[40]; + char *p = buf; + int l = sizeof(buf); + + if (r->rate <= 0) + { + snprintf(buf, sizeof(buf), "unknown"); + } + else + { + p += snprintf(p, l, "%s", format_rate(r->rate)); + l = sizeof(buf) - (p - buf); + + if (r->mcs >= 0) + { + p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, 20 + r->is_40mhz*20); + l = sizeof(buf) - (p - buf); + + if (r->is_short_gi) + p += snprintf(p, l, ", short GI"); + } + } + + return buf; +} + + +static const char * print_type(const struct iwinfo_ops *iw, const char *ifname) +{ + const char *type = iwinfo_type(ifname); + return type ? type : "unknown"; +} + +static char * print_hardware_id(const struct iwinfo_ops *iw, const char *ifname) +{ + static char buf[20]; + struct iwinfo_hardware_id ids; + + if (!iw->hardware_id(ifname, (char *)&ids)) + { + snprintf(buf, sizeof(buf), "%04X:%04X %04X:%04X", + ids.vendor_id, ids.device_id, + ids.subsystem_vendor_id, ids.subsystem_device_id); + } + else + { + snprintf(buf, sizeof(buf), "unknown"); + } + + return buf; +} + +static char * print_hardware_name(const struct iwinfo_ops *iw, const char *ifname) +{ + static char buf[128]; + + if (iw->hardware_name(ifname, buf)) + snprintf(buf, sizeof(buf), "unknown"); + + return buf; +} + +static char * print_txpower_offset(const struct iwinfo_ops *iw, const char *ifname) +{ + int off; + static char buf[12]; + + if (iw->txpower_offset(ifname, &off)) + snprintf(buf, sizeof(buf), "unknown"); + else if (off != 0) + snprintf(buf, sizeof(buf), "%d dB", off); + else + snprintf(buf, sizeof(buf), "none"); + + return buf; +} + +static char * print_frequency_offset(const struct iwinfo_ops *iw, const char *ifname) +{ + int off; + static char buf[12]; + + if (iw->frequency_offset(ifname, &off)) + snprintf(buf, sizeof(buf), "unknown"); + else if (off != 0) + snprintf(buf, sizeof(buf), "%.3f GHz", ((float)off / 1000.0)); + else + snprintf(buf, sizeof(buf), "none"); + + return buf; +} + +static char * print_ssid(const struct iwinfo_ops *iw, const char *ifname) +{ + char buf[IWINFO_ESSID_MAX_SIZE+1] = { 0 }; + + if (iw->ssid(ifname, buf)) + memset(buf, 0, sizeof(buf)); + + return format_ssid(buf); +} + +static char * print_bssid(const struct iwinfo_ops *iw, const char *ifname) +{ + static char buf[18] = { 0 }; + + if (iw->bssid(ifname, buf)) + snprintf(buf, sizeof(buf), "00:00:00:00:00:00"); + + return buf; +} + +static char * print_mode(const struct iwinfo_ops *iw, const char *ifname) +{ + int mode; + static char buf[128]; + + if (iw->mode(ifname, &mode)) + mode = IWINFO_OPMODE_UNKNOWN; + + snprintf(buf, sizeof(buf), "%s", IWINFO_OPMODE_NAMES[mode]); + + return buf; +} + +static char * print_channel(const struct iwinfo_ops *iw, const char *ifname) +{ + int ch; + if (iw->channel(ifname, &ch)) + ch = -1; + + return format_channel(ch); +} + +static char * print_frequency(const struct iwinfo_ops *iw, const char *ifname) +{ + int freq; + if (iw->frequency(ifname, &freq)) + freq = -1; + + return format_frequency(freq); +} + +static char * print_txpower(const struct iwinfo_ops *iw, const char *ifname) +{ + int pwr, off; + if (iw->txpower_offset(ifname, &off)) + off = 0; + + if (iw->txpower(ifname, &pwr)) + pwr = -1; + else + pwr += off; + + return format_txpower(pwr); +} + +static char * print_quality(const struct iwinfo_ops *iw, const char *ifname) +{ + int qual; + if (iw->quality(ifname, &qual)) + qual = -1; + + return format_quality(qual); +} + +static char * print_quality_max(const struct iwinfo_ops *iw, const char *ifname) +{ + int qmax; + if (iw->quality_max(ifname, &qmax)) + qmax = -1; + + return format_quality_max(qmax); +} + +static char * print_signal(const struct iwinfo_ops *iw, const char *ifname) +{ + int sig; + if (iw->signal(ifname, &sig)) + sig = 0; + + return format_signal(sig); +} + +static char * print_noise(const struct iwinfo_ops *iw, const char *ifname) +{ + int noise; + if (iw->noise(ifname, &noise)) + noise = 0; + + return format_noise(noise); +} + +static char * print_rate(const struct iwinfo_ops *iw, const char *ifname) +{ + int rate; + if (iw->bitrate(ifname, &rate)) + rate = -1; + + return format_rate(rate); +} + +static char * print_encryption(const struct iwinfo_ops *iw, const char *ifname) +{ + struct iwinfo_crypto_entry c = { 0 }; + if (iw->encryption(ifname, (char *)&c)) + return format_encryption(NULL); + + return format_encryption(&c); +} + +static char * print_hwmodes(const struct iwinfo_ops *iw, const char *ifname) +{ + int modes; + if (iw->hwmodelist(ifname, &modes)) + modes = -1; + + return format_hwmodes(modes); +} + +static char * print_mbssid_supp(const struct iwinfo_ops *iw, const char *ifname) +{ + int supp; + static char buf[4]; + + if (iw->mbssid_support(ifname, &supp)) + snprintf(buf, sizeof(buf), "no"); + else + snprintf(buf, sizeof(buf), "%s", supp ? "yes" : "no"); + + return buf; +} + +static char * print_phyname(const struct iwinfo_ops *iw, const char *ifname) +{ + static char buf[32]; + + if (!iw->phyname(ifname, buf)) + return buf; + + return "?"; +} + + +static void print_info(const struct iwinfo_ops *iw, const char *ifname) +{ + printf("%-9s ESSID: %s\n", + ifname, + print_ssid(iw, ifname)); + printf(" Access Point: %s\n", + print_bssid(iw, ifname)); + printf(" Mode: %s Channel: %s (%s)\n", + print_mode(iw, ifname), + print_channel(iw, ifname), + print_frequency(iw, ifname)); + printf(" Tx-Power: %s Link Quality: %s/%s\n", + print_txpower(iw, ifname), + print_quality(iw, ifname), + print_quality_max(iw, ifname)); + printf(" Signal: %s Noise: %s\n", + print_signal(iw, ifname), + print_noise(iw, ifname)); + printf(" Bit Rate: %s\n", + print_rate(iw, ifname)); + printf(" Encryption: %s\n", + print_encryption(iw, ifname)); + printf(" Type: %s HW Mode(s): %s\n", + print_type(iw, ifname), + print_hwmodes(iw, ifname)); + printf(" Hardware: %s [%s]\n", + print_hardware_id(iw, ifname), + print_hardware_name(iw, ifname)); + printf(" TX power offset: %s\n", + print_txpower_offset(iw, ifname)); + printf(" Frequency offset: %s\n", + print_frequency_offset(iw, ifname)); + printf(" Supports VAPs: %s PHY name: %s\n", + print_mbssid_supp(iw, ifname), + print_phyname(iw, ifname)); +} + + +static void print_scanlist(const struct iwinfo_ops *iw, const char *ifname) +{ + 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 info\n" + " iwinfo scan\n" + " iwinfo txpowerlist\n" + " iwinfo freqlist\n" + " iwinfo assoclist\n" + " iwinfo 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; +} -- cgit v1.2.1