libs: introduce iwinfo - wireless information abstraction for proprietary broadcom, madwifi and mac80211 drivers.

1 files changed, 243 insertions, 0 deletions

diff --git a/libs/iwinfo/src/iwinfo_wext.c b/libs/iwinfo/src/iwinfo_wext.c
new file mode 100644
index 000000000..7f44fd0d2
--- /dev/null
+++ b/libs/iwinfo/src/iwinfo_wext.c
@@ -0,0 +1,243 @@
+/*
+ * iwinfo - Wireless Information Library - Linux Wireless Extension Backend
+ *
+ *   Copyright (C) 2009 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/.
+ *
+ * Parts of this code are derived from the Linux wireless tools, iwlib.c,
+ * iwlist.c and iwconfig.c in particular.
+ */
+
+#include "iwinfo.h"
+#include "iwinfo_wext.h"
+
+static int ioctl_socket = -1;
+
+static double wext_freq2float(const struct iw_freq *in)
+{
+	int		i;
+	double	res = (double) in->m;
+	for(i = 0; i < in->e; i++) res *= 10;
+	return res;
+}
+
+static int wext_ioctl(const char *ifname, int cmd, struct iwreq *wrq)
+{
+	/* prepare socket */
+	if( ioctl_socket == -1 )
+		ioctl_socket = socket(AF_INET, SOCK_DGRAM, 0);
+
+  	strncpy(wrq->ifr_name, ifname, IFNAMSIZ);
+	return ioctl(ioctl_socket, cmd, wrq);
+}
+
+
+int wext_probe(const char *ifname)
+{
+	struct iwreq wrq;
+
+	if(wext_ioctl(ifname, SIOCGIWNAME, &wrq) >= 0)
+		return 1;
+
+	return 0;
+}
+
+int wext_get_mode(const char *ifname, char *buf)
+{
+	struct iwreq wrq;
+
+	if(wext_ioctl(ifname, SIOCGIWMODE, &wrq) >= 0)
+	{
+		switch(wrq.u.mode)
+		{
+			case 0:
+				sprintf(buf, "Auto");
+				break;
+
+			case 1:
+				sprintf(buf, "Ad-Hoc");
+				break;
+
+			case 2:
+				sprintf(buf, "Client");
+				break;
+
+			case 3:
+				sprintf(buf, "Master");
+				break;
+
+			case 4:
+				sprintf(buf, "Repeater");
+				break;
+
+			case 5:
+				sprintf(buf, "Secondary");
+				break;
+
+			case 6:
+				sprintf(buf, "Monitor");
+				break;
+
+			default:
+				sprintf(buf, "Unknown");
+		}
+
+		return 0;
+	}
+
+	return -1;
+}
+
+int wext_get_ssid(const char *ifname, char *buf)
+{
+	struct iwreq wrq;
+
+	wrq.u.essid.pointer = (caddr_t) buf;
+	wrq.u.essid.length  = IW_ESSID_MAX_SIZE + 1;
+	wrq.u.essid.flags   = 0;
+
+	if(wext_ioctl(ifname, SIOCGIWESSID, &wrq) >= 0)
+		return 0;
+
+	return -1;
+}
+
+int wext_get_bssid(const char *ifname, char *buf)
+{
+	struct iwreq wrq;
+
+	if(wext_ioctl(ifname, SIOCGIWAP, &wrq) >= 0)
+	{
+		sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X",
+			(uint8_t)wrq.u.ap_addr.sa_data[0], (uint8_t)wrq.u.ap_addr.sa_data[1],
+			(uint8_t)wrq.u.ap_addr.sa_data[2], (uint8_t)wrq.u.ap_addr.sa_data[3],
+			(uint8_t)wrq.u.ap_addr.sa_data[4], (uint8_t)wrq.u.ap_addr.sa_data[5]);
+
+		return 0;
+	}
+
+	return -1;	
+}
+
+int wext_get_bitrate(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+
+	if(wext_ioctl(ifname, SIOCGIWRATE, &wrq) >= 0)
+	{
+		*buf = wrq.u.bitrate.value;
+		return 0;
+	}
+
+	return -1;	
+}
+
+int wext_get_channel(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+
+	if(wext_ioctl(ifname, SIOCGIWFREQ, &wrq) >= 0)
+	{
+		/* FIXME: iwlib has some strange workarounds here, maybe we need them as well... */
+		*buf = (int) wext_freq2float(&wrq.u.freq);
+		return 0;
+	}
+
+	return -1;	
+}
+
+int wext_get_signal(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+	struct iw_statistics stats;
+
+	wrq.u.data.pointer = (caddr_t) &stats;
+	wrq.u.data.length  = sizeof(struct iw_statistics);
+	wrq.u.data.flags   = 1;
+
+	if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
+	{
+		*buf = (stats.qual.level - 0x100);
+		return 0;
+	}
+
+	return -1;
+}
+
+int wext_get_noise(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+	struct iw_statistics stats;
+
+	wrq.u.data.pointer = (caddr_t) &stats;
+	wrq.u.data.length  = sizeof(struct iw_statistics);
+	wrq.u.data.flags   = 1;
+
+	if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
+	{
+		*buf = (stats.qual.noise - 0x100);
+		return 0;
+	}
+
+	return -1;
+}
+
+int wext_get_quality(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+	struct iw_statistics stats;
+
+	wrq.u.data.pointer = (caddr_t) &stats;
+	wrq.u.data.length  = sizeof(struct iw_statistics);
+	wrq.u.data.flags   = 1;
+
+	if(wext_ioctl(ifname, SIOCGIWSTATS, &wrq) >= 0)
+	{
+		*buf = stats.qual.qual;
+		return 0;
+	}
+
+	return -1;
+}
+
+int wext_get_quality_max(const char *ifname, int *buf)
+{
+	struct iwreq wrq;
+	struct iw_range range;
+
+	wrq.u.data.pointer = (caddr_t) &range;
+	wrq.u.data.length  = sizeof(struct iw_range);
+	wrq.u.data.flags   = 0;
+
+	if(wext_ioctl(ifname, SIOCGIWRANGE, &wrq) >= 0)
+	{
+		*buf = range.max_qual.qual;
+		return 0;
+	}
+
+	return -1;
+}
+
+int wext_get_enctype(const char *ifname, char *buf)
+{
+	/* Stub */
+	return -1;
+}
+
+int wext_get_assoclist(const char *ifname, char *buf, int *len)
+{
+	/* Stub */
+	return -1;
+}
+