tAdd Linux support for the wifi plugin - spoon - dwm status utility (2f30 fork)
(HTM) git clone git://src.adamsgaard.dk/spoon
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---
(DIR) commit 39a4ec480bc9db2e4fca1506856309dc884d1fb9
(DIR) parent 36856fa7ba39356dcf456226797ff588a5733999
(HTM) Author: lostd <lostd@2f30.org>
Date: Wed, 2 Nov 2016 14:37:07 +0100
Add Linux support for the wifi plugin
Diffstat:
M util.h | 10 ++++++++++
M wifi.c | 93 +++++++++++++++++++++++++++++--
2 files changed, 99 insertions(+), 4 deletions(-)
---
(DIR) diff --git a/util.h b/util.h
t@@ -2,3 +2,13 @@
size_t strlcat(char *, const char *, size_t);
#undef strlcpy
size_t strlcpy(char *, const char *, size_t);
+
+#ifdef DEBUG
+#define DPRINTF_S(x) printf(#x "=%s\n", x)
+#define DPRINTF_U(x) printf(#x "=%u\n", x)
+#define DPRINTF_D(x) printf(#x "=%d\n", x)
+#else
+#define DPRINTF_S(x)
+#define DPRINTF_U(x)
+#define DPRINTF_D(x)
+#endif
(DIR) diff --git a/wifi.c b/wifi.c
t@@ -1,5 +1,8 @@
#include <err.h>
+#include <ifaddrs.h>
#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
#include "util.h"
t@@ -32,10 +35,6 @@ wifiprint(char *buf, size_t len, int quality)
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_ioctl.h>
-#include <ifaddrs.h>
-#include <string.h>
-#include <unistd.h>
-
int
wifiread(void *arg, char *buf, size_t len)
{
t@@ -105,4 +104,90 @@ wifiread(void *arg, char *buf, size_t len)
return 0;
return -1;
}
+#elif __linux__
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <linux/wireless.h>
+
+int
+wifiread(void *arg, char *buf, size_t len)
+{
+ struct ifaddrs *ifa, *ifas;
+ struct iw_quality *max_qual, *qual;
+ struct iw_statistics stats;
+ struct iw_range range;
+ struct iwreq wrq;
+ int quality = -1;
+ int level;
+ int ret, fd;
+
+ if (getifaddrs(&ifas) < 0) {
+ warn("getifaddrs");
+ return -1;
+ }
+ fd = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd == -1) {
+ warn("socket");
+ return -1;
+ }
+ for (ifa = ifas; ifa != NULL; ifa = ifa->ifa_next) {
+ DPRINTF_S(ifa->ifa_name);
+ memset(&wrq, 0, sizeof(wrq));
+ strlcpy(wrq.ifr_name, ifa->ifa_name, IFNAMSIZ);
+ ret = ioctl(fd, SIOCGIWNAME, &wrq);
+ if (ret != 0)
+ continue;
+ memset(&wrq, 0, sizeof(wrq));
+ strlcpy(wrq.ifr_name, ifa->ifa_name, IFNAMSIZ);
+ wrq.u.data.pointer = ⦥
+ wrq.u.data.length = sizeof(range);
+ memset(&range, 0, sizeof(range));
+ ret = ioctl(fd, SIOCGIWRANGE, &wrq);
+ if (ret < 0)
+ warnx("cannot get wifi range");
+ memset(&wrq, 0, sizeof(wrq));
+ strlcpy(wrq.ifr_name, ifa->ifa_name, IFNAMSIZ);
+ wrq.u.data.pointer = &stats;
+ wrq.u.data.length = sizeof(stats);
+ wrq.u.data.flags = 1;
+ memset(&stats, 0, sizeof(stats));
+ ret = ioctl(fd, SIOCGIWSTATS, &wrq);
+ if (ret < 0)
+ warnx("cannot get wifi stats");
+ max_qual = &range.max_qual;
+ qual = &stats.qual;
+ DPRINTF_U(max_qual->qual);
+ DPRINTF_U(max_qual->level);
+ DPRINTF_U(qual->qual);
+ DPRINTF_U(qual->level);
+ if (max_qual->qual != 0) {
+ /* driver provides a quality metric */
+ quality = (unsigned)
+ (((float)qual->qual / max_qual->qual) * 100);
+ } else if (max_qual->level != 0) {
+ /* driver provides signal strength (RSSI) */
+ quality = (unsigned)
+ (((float)qual->level / max_qual->level) * 100);
+ } else if (max_qual->level == 0) {
+ /* driver provides absolute dBm values */
+ level = qual->level - 0x100;
+ if (level <= -100)
+ quality = 0;
+ else if (level >= -50)
+ quality = 100;
+ else
+ quality = 2 * (level + 100);
+ }
+ break;
+ }
+ close(fd);
+ freeifaddrs(ifas);
+
+ DPRINTF_D(quality);
+ if (quality == -1)
+ return -1;
+ wifiprint(buf, len, quality);
+ return 0;
+}
#endif