Mirror of the official iwinfo project repository by OpenWrt https://git.openwrt.org/project/iwinfo
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/*
* iwinfo - Wireless Information Library - Command line frontend
*
* Copyright (C) 2011 Jo-Philipp Wich <xm@subsignal.org>
*
* 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 <stdio.h>
#include <glob.h>
#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[11];
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[18];
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_GCMP)
pos += sprintf(pos, "GCMP, ");
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 & IWINFO_KMGMT_SAE)
pos += sprintf(pos, "SAE/");
if (suites & IWINFO_KMGMT_OWE)
pos += sprintf(pos, "OWE/");
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];
char *pos = buf;
int i, n;
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)
{
for (i = 0, n = 0; i < 3; i++)
if (c->wpa_version & (1 << i))
n++;
if (n > 1)
pos += sprintf(pos, "mixed ");
for (i = 0; i < 3; i++)
if (c->wpa_version & (1 << i))
if (i)
pos += sprintf(pos, "WPA%d/", i + 1);
else
pos += sprintf(pos, "WPA/");
pos--;
sprintf(pos, " %s (%s)",
format_enc_suites(c->auth_suites),
format_enc_ciphers(c->pair_ciphers | c->group_ciphers));
}
else
{
snprintf(buf, sizeof(buf), "none");
}
}
else
{
snprintf(buf, sizeof(buf), "none");
}
return buf;
}
static char * format_hwmodes(int modes)
{
static char buf[17];
if (modes <= 0)
snprintf(buf, sizeof(buf), "unknown");
else
snprintf(buf, sizeof(buf), "802.11%s%s%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" : "",
(modes & IWINFO_80211_AD) ? "ad" : "",
(modes & IWINFO_80211_AX) ? "ax" : "");
return buf;
}
static char * format_assocrate(struct iwinfo_rate_entry *r)
{
static char buf[80];
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->is_ht)
{
p += snprintf(p, l, ", MCS %d, %dMHz", r->mcs, r->mhz);
l = sizeof(buf) - (p - buf);
}
else if (r->is_vht)
{
p += snprintf(p, l, ", VHT-MCS %d, %dMHz", r->mcs, r->mhz);
l = sizeof(buf) - (p - buf);
if (r->nss)
{
p += snprintf(p, l, ", VHT-NSS %d", r->nss);
l = sizeof(buf) - (p - buf);
}
}
else if (r->is_he)
{
p += snprintf(p, l, ", HE-MCS %d, %dMHz", r->mcs, r->mhz);
l = sizeof(buf) - (p - buf);
p += snprintf(p, l, ", HE-NSS %d", r->nss);
l = sizeof(buf) - (p - buf);
p += snprintf(p, l, ", HE-GI %d", r->he_gi);
l = sizeof(buf) - (p - buf);
p += snprintf(p, l, ", HE-DCM %d", r->he_dcm);
l = sizeof(buf) - (p - buf);
}
}
return buf;
}
static const char* format_chan_width(uint16_t width)
{
switch (width) {
case 20: return "20 MHz";
case 2040: return "40 MHz and upper or 20 MHz with intolerant bit";
case 40: return "40 MHz or lower";
case 80: return "80 MHz";
case 8080: return "80+80 MHz";
case 160: return "160 MHz";
}
return "unknown";
}
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_center_chan1(const struct iwinfo_ops *iw, const char *ifname)
{
int ch;
if (iw->center_chan1(ifname, &ch))
ch = -1;
return format_channel(ch);
}
static char * print_center_chan2(const struct iwinfo_ops *iw, const char *ifname)
{
int ch;
if (iw->center_chan2(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));
if (iw->center_chan1 != NULL) {
printf(" Center Channel 1: %s",
print_center_chan1(iw, ifname));
printf(" 2: %s\n", print_center_chan2(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",
format_encryption(&e->crypto));
printf(" HT Operation:\n");
printf(" Primary Channel: %d\n",
e->ht_chan_info.primary_chan);
printf(" Secondary Channel Offset: %s\n",
ht_secondary_offset[e->ht_chan_info.secondary_chan_off]);
printf(" Channel Width: %s\n",
format_chan_width(e->ht_chan_info.chan_width));
if (e->vht_chan_info.center_chan_1) {
printf(" VHT Operation:\n");
printf(" Channel Width: %s\n",
format_chan_width(e->vht_chan_info.chan_width));
printf(" Center Frequency 1: %d\n",
e->vht_chan_info.center_chan_1);
printf(" Center Frequency 2: %d\n",
e->vht_chan_info.center_chan_2);
}
printf("\n");
}
}
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",
format_assocrate(&e->tx_rate),
e->tx_packets
);
printf(" expected throughput: %s\n\n",
format_rate(e->thr));
}
}
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));
}
}
}
static void print_htmodelist(const struct iwinfo_ops *iw, const char *ifname)
{
int i, htmodes = 0;
if (iw->htmodelist(ifname, &htmodes))
{
printf("No HT mode information available\n");
return;
}
for (i = 0; i < ARRAY_SIZE(IWINFO_HTMODE_NAMES); i++)
if (htmodes & (1 << i))
printf("%s ", IWINFO_HTMODE_NAMES[i]);
printf("\n");
}
static void lookup_phy(const struct iwinfo_ops *iw, const char *section)
{
char buf[IWINFO_BUFSIZE];
if (!iw->lookup_phy)
{
fprintf(stderr, "Not supported\n");
return;
}
if (iw->lookup_phy(section, buf))
{
fprintf(stderr, "Phy not found\n");
return;
}
printf("%s\n", buf);
}
int main(int argc, char **argv)
{
int i, rv = 0;
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"
" iwinfo <device> htmodelist\n"
" iwinfo <backend> phyname <section>\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;
}
if (argc > 3)
{
iw = iwinfo_backend_by_name(argv[1]);
if (!iw)
{
fprintf(stderr, "No such wireless backend: %s\n", argv[1]);
rv = 1;
}
else
{
switch (argv[2][0])
{
case 'p':
lookup_phy(iw, argv[3]);
break;
default:
fprintf(stderr, "Unknown command: %s\n", argv[2]);
rv = 1;
}
}
}
else
{
iw = iwinfo_backend(argv[1]);
if (!iw)
{
fprintf(stderr, "No such wireless device: %s\n", argv[1]);
rv = 1;
}
else
{
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;
case 'h':
print_htmodelist(iw, argv[1]);
break;
default:
fprintf(stderr, "Unknown command: %s\n", argv[i]);
rv = 1;
}
}
}
}
iwinfo_finish();
return rv;
}