add libiwinfo (moved from LuCI trunk)

SVN-Revision: 29403

1 files changed, 683 insertions, 0 deletions

diff --git a/package/iwinfo/src/iwinfo_cli.c b/package/iwinfo/src/iwinfo_cli.c
new file mode 100644
index 0000000..4229b19
--- /dev/null
+++ b/package/iwinfo/src/iwinfo_cli.c
@@ -0,0 +1,683 @@
+/*
+ * 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 "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), "%.1f MBit/s", ((float)rate / 1000.0));
+
+	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",
+			(modes & IWINFO_80211_A) ? "a" : "",
+			(modes & IWINFO_80211_B) ? "b" : "",
+			(modes & IWINFO_80211_G) ? "g" : "",
+			(modes & IWINFO_80211_N) ? "n" : "");
+
+	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_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)
+{
+	static char buf[128];
+
+	if (iw->mode(ifname, buf))
+		snprintf(buf, sizeof(buf), "unknown");
+
+	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;
+	if (iw->txpower(ifname, &pwr))
+		pwr = -1;
+
+	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 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("          Type: %s  HW Mode(s): %s\n",
+		print_type(iw, ifname),
+		print_hwmodes(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("          Supports VAPs: %s\n",
+		print_mbssid_supp(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",
+			e->mode ? (char *)e->mode : "unknown",
+			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, 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;
+
+	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,
+			e->mw);
+	}
+}
+
+
+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)\n",
+			format_bssid(e->mac),
+			format_signal(e->signal),
+			format_noise(e->noise),
+			(e->signal - e->noise));
+	}
+}
+
+
+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;
+	const struct iwinfo_ops *iw;
+
+	if (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;
+	}
+
+	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;
+}