Imported Upstream version 0.6.10upstream/0.6.10

1 files changed, 451 insertions, 0 deletions

diff --git a/iw_if.h b/iw_if.h
new file mode 100644
index 0000000..2a81496
--- /dev/null
+++ b/iw_if.h
@@ -0,0 +1,451 @@
+/*
+ * wavemon - a wireless network monitoring aplication
+ *
+ * Copyright (c) 2001-2002 Jan Morgenstern <jan@jm-music.de>
+ *
+ * wavemon is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2, or (at your option) any later
+ * version.
+ *
+ * wavemon 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 wavemon; see the file COPYING.  If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include "wavemon.h"
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netinet/ether.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <sys/socket.h>
+#include <linux/if.h>
+#include <linux/wireless.h>
+
+/* Definitions that appeared in more recent versions of wireless.h */
+#ifndef IW_POWER_SAVING
+#define IW_POWER_SAVING	0x4000		/* version 20 -> 21 */
+#endif
+#ifndef IW_MODE_MESH
+#define IW_MODE_MESH	7		/* introduced in 2.6.26-rc1 */
+#endif
+
+/* Maximum length of a MAC address: 2 * 6 hex digits, 6 - 1 colons, plus '\0' */
+#define MAC_ADDR_MAX	18
+
+/*
+ * Threshold for 'sane' noise levels.
+ *
+ * Some drivers simply set an arbitrary minimum noise level to mean 'invalid',
+ * but do not set IW_QUAL_NOISE_INVALID so that the display gets stuck at a
+ * "house number". The value below is suggested by and taken from the iwl3945
+ * driver (constant IWL_NOISE_MEAS_NOT_AVAILABLE in iwl-3945.h).
+ */
+#define NOISE_DBM_SANE_MIN	-127
+
+/* Static network interface information - see netdevice(7) */
+struct if_info {		/* modified ifreq */
+	struct ether_addr	hwaddr;
+	struct in_addr		addr,
+				netmask,
+				bcast;
+};
+extern void if_getinf(char *ifname, struct if_info *info);
+
+/**
+ * struct iw_dyn_info  -  modified iw_req
+ * @name:	interface name
+ * @mode:	current operation mode (IW_MODE_xxx)
+ *
+ * @cap_*:	indicating capability/presence
+ *
+ * @essid:	Extended Service Set ID (network name)
+ * @essid_ct:	index number of the @essid (starts at 1, 0 = off)
+ * @nickname:	optional station nickname
+ * @nwid:	Network ID (pre-802.11 hardware only)
+ * @ap_addr:	BSSID or IBSSID
+ *
+ * @retry:	MAC-retransmission retry behaviour
+ * @rts:	minimum packet size for which to perform RTS/CTS handshake
+ * @frag:	802.11 frame fragmentation threshold size
+ * @txpower:	TX power information
+ * @power	power management information
+ *
+ * @freq:	frequency in Hz
+ * @sens:	sensitivity threshold of the card
+ * @bitrate:	bitrate (client mode)
+ *
+ * @key:	encryption key
+ * @key_size:	length of @key in bytes
+ * @key_flags:	bitmask with information about @key
+ *
+ */
+struct iw_dyn_info {
+	char		name[IFNAMSIZ];
+	uint8_t		mode;
+
+	bool		cap_essid:1,
+			cap_nwid:1,
+			cap_nickname:1,
+			cap_freq:1,
+			cap_sens:1,
+			cap_bitrate:1,
+			cap_txpower:1,
+			cap_retry:1,
+			cap_rts:1,
+			cap_frag:1,
+			cap_mode:1,
+			cap_ap:1,
+			cap_key:1,
+			cap_power:1,
+			cap_aplist:1;
+
+	char		essid[IW_ESSID_MAX_SIZE+2];
+	uint8_t		essid_ct;
+	char		nickname[IW_ESSID_MAX_SIZE+2];
+	struct iw_param nwid;
+	struct sockaddr ap_addr;
+
+	struct iw_param retry;
+	struct iw_param rts;
+	struct iw_param frag;
+	struct iw_param txpower;
+	struct iw_param power;
+
+	float		freq;
+	int32_t		sens;
+	unsigned long	bitrate;
+
+	char		key[IW_ENCODING_TOKEN_MAX];
+	uint16_t	key_size;
+	uint16_t	key_flags;
+};
+
+struct if_stat {
+	unsigned long long	rx_packets,
+				tx_packets;
+	unsigned long long	rx_bytes,
+				tx_bytes;
+};
+
+extern void if_getstat(char *ifname, struct if_stat *stat);
+
+/*
+ *	 Structs to communicate WiFi statistics
+ */
+struct iw_levelstat {
+	float	signal;		/* signal level in dBm */
+	float	noise;		/* noise  level in dBm */
+	uint8_t	flags;		/* level validity      */
+};
+#define IW_LSTAT_INIT { 0, 0, IW_QUAL_LEVEL_INVALID | IW_QUAL_NOISE_INVALID }
+
+extern void iw_sanitize(struct iw_range *range,
+			struct iw_quality *qual,
+			struct iw_levelstat *dbm);
+
+/**
+ * struct iw_stat - record current WiFi state
+ * @range:	current range information
+ * @stats:	current signal level statistics
+ * @dbm:	the noise/signal of @stats in dBm
+ */
+struct iw_stat {
+	struct iw_range		range;
+	struct iw_statistics	stat;
+	struct iw_levelstat	dbm;
+};
+
+extern void iw_getstat(struct iw_stat *stat);
+extern void iw_cache_update(struct iw_stat *stat);
+
+extern void iw_getinf_dyn(char *ifname, struct iw_dyn_info *info);
+extern void iw_getinf_range(char *ifname, struct iw_range *range);
+
+extern void (*iw_stat_redraw) (void);
+
+/*
+ *	Helper routines
+ */
+static inline const char *iw_opmode(const uint8_t mode)
+{
+	static char *modes[] = { "Auto",
+				 "Ad-Hoc",
+				 "Managed",
+				 "Master",
+				 "Repeater",
+				 "Secondary",
+				 "Monitor",
+				 "Mesh"
+	};
+
+	return mode < ARRAY_SIZE(modes) ? modes[mode] : "Unknown/bug";
+}
+
+static inline bool is_zero_ether_addr(const uint8_t *mac)
+{
+	return ! (mac[0] | mac[1] | mac[2] | mac[3] | mac[4] | mac[5]);
+}
+
+static inline bool is_broadcast_ether_addr(const uint8_t *mac)
+{
+	return (mac[0] & mac[1] & mac[2] & mac[3] & mac[4] & mac[5]) == 0xff;
+}
+
+/* Print a mac-address, include leading zeroes (unlike ether_ntoa(3)) */
+static inline char *ether_addr(const struct ether_addr *ea)
+{
+	static char str[MAC_ADDR_MAX];
+
+	sprintf(str, "%02X:%02X:%02X:%02X:%02X:%02X",
+		ea->ether_addr_octet[0], ea->ether_addr_octet[1],
+		ea->ether_addr_octet[2], ea->ether_addr_octet[3],
+		ea->ether_addr_octet[4], ea->ether_addr_octet[5]);
+	return str;
+}
+
+/* Print mac-address translation from /etc/ethers if available */
+static inline char *ether_lookup(const struct ether_addr *ea)
+{
+	static char hostname[BUFSIZ];
+
+	if (ether_ntohost(hostname, ea) == 0)
+		return hostname;
+	return ether_addr(ea);
+}
+
+/* Format an Ethernet mac address */
+static inline char *mac_addr(const struct sockaddr *sa)
+{
+	struct ether_addr zero = { {0} };
+
+	if (sa->sa_family != ARPHRD_ETHER)
+		return ether_addr(&zero);
+	return ether_lookup((struct ether_addr *)sa->sa_data);
+}
+
+/* Format a (I)BSSID */
+static inline char *format_bssid(const struct sockaddr *ap)
+{
+	const struct ether_addr *bssid = (struct ether_addr *)ap->sa_data;
+
+	if (is_zero_ether_addr(bssid->ether_addr_octet))
+		return "Not-Associated";
+	if (is_broadcast_ether_addr(bssid->ether_addr_octet))
+		return "Invalid";
+	return mac_addr(ap);
+}
+
+/* count bits set in @mask the Brian Kernighan way */
+static inline uint8_t bit_count(uint32_t mask)
+{
+	uint8_t bits_set;
+
+	for (bits_set = 0; mask; bits_set++)
+		mask &= mask - 1;
+
+	return bits_set;
+}
+
+/* netmask = contiguous 1's followed by contiguous 0's */
+static inline uint8_t prefix_len(const struct in_addr *netmask)
+{
+	return bit_count(netmask->s_addr);
+}
+
+/* Convert log dBm values to linear mW */
+static inline double dbm2mw(const double in)
+{
+	return pow(10.0, in / 10.0);
+}
+
+static inline char *dbm2units(const double in)
+{
+	static char with_units[0x100];
+	double val = dbm2mw(in);
+
+	if (val < 0.00000001) {
+		sprintf(with_units, "%.2f pW", val * 1e9);
+	} else if (val < 0.00001) {
+		sprintf(with_units, "%.2f nW", val * 1e6);
+	} else if (val < 0.01) {
+		sprintf(with_units, "%.2f uW", val * 1e3);
+	} else {
+		sprintf(with_units, "%.2f mW", val);
+	}
+	return with_units;
+}
+
+/* Convert linear mW values to log dBm */
+static inline double mw2dbm(const double in)
+{
+	return 10.0 * log10(in);
+}
+
+/* Format driver TX power information */
+static inline char *format_txpower(const struct iw_param *txpwr)
+{
+	static char txline[0x40];
+
+	if (txpwr->flags & IW_TXPOW_RELATIVE)
+		snprintf(txline, sizeof(txline), "%d (no units)", txpwr->value);
+	else if (txpwr->flags & IW_TXPOW_MWATT)
+		snprintf(txline, sizeof(txline), "%.0f dBm (%d mW)",
+				mw2dbm(txpwr->value), txpwr->value);
+	else
+		snprintf(txline, sizeof(txline), "%d dBm (%.2f mW)",
+				txpwr->value, dbm2mw(txpwr->value));
+	return txline;
+}
+
+/* Format driver Power Management information */
+static inline char *format_power(const struct iw_param *pwr,
+				 const struct iw_range *range)
+{
+	static char buf[0x80];
+	double val = pwr->value;
+	int len = 0;
+
+	if (pwr->disabled)
+		return "off";
+	else if (pwr->flags == IW_POWER_ON)
+		return "on";
+
+	if (pwr->flags & IW_POWER_MIN)
+		len += snprintf(buf + len, sizeof(buf) - len, "min ");
+	if (pwr->flags & IW_POWER_MAX)
+		len += snprintf(buf + len, sizeof(buf) - len, "max ");
+
+	if (pwr->flags & IW_POWER_TIMEOUT)
+		len += snprintf(buf + len, sizeof(buf) - len, "timeout ");
+	else if (pwr->flags & IW_POWER_SAVING)
+		len += snprintf(buf + len, sizeof(buf) - len, "saving ");
+	else
+		len += snprintf(buf + len, sizeof(buf) - len, "period ");
+
+	if (pwr->flags & IW_POWER_RELATIVE && range->we_version_compiled < 21)
+		len += snprintf(buf + len, sizeof(buf) - len, "%+g", val/1e6);
+	else if (pwr->flags & IW_POWER_RELATIVE)
+		len += snprintf(buf + len, sizeof(buf) - len, "%+g", val);
+	else if (val > 1e6)
+		len += snprintf(buf + len, sizeof(buf) - len, "%g s", val/1e6);
+	else if (val > 1e3)
+		len += snprintf(buf + len, sizeof(buf) - len, "%g ms", val/1e3);
+	else
+		len += snprintf(buf + len, sizeof(buf) - len, "%g us", val);
+
+	switch (pwr->flags & IW_POWER_MODE) {
+	case IW_POWER_UNICAST_R:
+		len += snprintf(buf + len, sizeof(buf) - len, ", rcv unicast");
+		break;
+	case IW_POWER_MULTICAST_R:
+		len += snprintf(buf + len, sizeof(buf) - len, ", rcv mcast");
+		break;
+	case IW_POWER_ALL_R:
+		len += snprintf(buf + len, sizeof(buf) - len, ", rcv all");
+		break;
+	case IW_POWER_FORCE_S:
+		len += snprintf(buf + len, sizeof(buf) - len, ", force send");
+		break;
+	case IW_POWER_REPEATER:
+		len += snprintf(buf + len, sizeof(buf) - len, ", repeat mcast");
+	}
+
+	return buf;
+}
+
+/* See comments on 'struct iw_freq' in wireless.h */
+static inline float freq_to_hz(const struct iw_freq *freq)
+{
+	return freq->m * pow(10, freq->e);
+}
+
+/* Return channel number or -1 on error. Based on iw_freq_to_channel() */
+static inline int freq_to_channel(double freq, const struct iw_range *range)
+{
+	int i;
+
+	if (freq < 1.0e3)
+		return -1;
+
+	for (i = 0; i < range->num_frequency; i++)
+		if (freq_to_hz(&range->freq[i]) == freq)
+			return range->freq[i].i;
+	return -1;
+}
+
+/* print @key in cleartext if it is in ASCII format, use hex format otherwise */
+static inline char *format_key(char *key, uint8_t key_len)
+{
+	static char buf[128];
+	int len = 0, i, is_printable;
+
+	for (i = 0, is_printable = 1; i < key_len && is_printable; i++)
+		is_printable = isprint(key[i]);
+
+	if (is_printable)
+		len += sprintf(buf, "\"");
+
+	for (i = 0; i < key_len; i++)
+		if (is_printable) {
+			len += sprintf(buf + len, "%c", key[i]);
+		} else {
+			if (i > 0 && (i & 1) == 0)
+				len += sprintf(buf + len, "-");
+			len += sprintf(buf + len, "%2X", key[i]);
+		}
+
+	if (is_printable)
+		sprintf(buf + len, "\"");
+
+	return buf;
+}
+
+static inline char *format_retry(const struct iw_param *retry,
+				 const struct iw_range *range)
+{
+	static char buf[0x80];
+	double val = retry->value;
+	int len = 0;
+
+	if (retry->disabled)
+		return "off";
+	else if (retry->flags == IW_RETRY_ON)
+		return "on";
+
+	if (retry->flags & IW_RETRY_MIN)
+		len += snprintf(buf + len, sizeof(buf) - len, "min ");
+	if (retry->flags & IW_RETRY_MAX)
+		len += snprintf(buf + len, sizeof(buf) - len, "max ");
+	if (retry->flags & IW_RETRY_SHORT)
+		len += snprintf(buf + len, sizeof(buf) - len, "short ");
+	if (retry->flags & IW_RETRY_LONG)
+		len += snprintf(buf + len, sizeof(buf) - len, "long ");
+
+	if (retry->flags & IW_RETRY_LIFETIME)
+		len += snprintf(buf + len, sizeof(buf) - len, "lifetime ");
+	else {
+		snprintf(buf + len, sizeof(buf) - len, "limit %d", retry->value);
+		return buf;
+	}
+
+	if (retry->flags & IW_RETRY_RELATIVE && range->we_version_compiled < 21)
+		len += snprintf(buf + len, sizeof(buf) - len, "%+g", val/1e6);
+	else if (retry->flags & IW_RETRY_RELATIVE)
+		len += snprintf(buf + len, sizeof(buf) - len, "%+g", val);
+	else if (val > 1e6)
+		len += snprintf(buf + len, sizeof(buf) - len, "%g s", val/1e6);
+	else if (val > 1e3)
+		len += snprintf(buf + len, sizeof(buf) - len, "%g ms", val/1e3);
+	else
+		len += snprintf(buf + len, sizeof(buf) - len, "%g us", val);
+
+	return buf;
+}
+