X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/51ff7ce2b99147a1a77ed243093865fc884e571a..e724907cc37749907cb8c63031d9fb35ef46a657:/components/wifi.c

diff --git a/components/wifi.c b/components/wifi.c
index 9de543b..d99c46c 100644
--- a/components/wifi.c
+++ b/components/wifi.c
@@ -8,6 +8,11 @@
 
 #include "../util.h"
 
+#define RSSI_TO_PERC(rssi) \
+			rssi >= -50 ? 100 : \
+			(rssi <= -100 ? 0 : \
+			(2 * (rssi + 100)))
+
 #if defined(__linux__)
 	#include <limits.h>
 	#include <linux/wireless.h>
@@ -15,15 +20,14 @@
 	const char *
 	wifi_perc(const char *interface)
 	{
-		int i, cur;
-		int total = 70; /* the max of /proc/net/wireless */
+		int cur;
+		size_t i;
 		char *p, *datastart;
 		char path[PATH_MAX];
 		char status[5];
 		FILE *fp;
 
-		if (esnprintf(path, sizeof(path),
-		              "/sys/class/net/%s/operstate",
+		if (esnprintf(path, sizeof(path), "/sys/class/net/%s/operstate",
 		              interface) < 0) {
 			return NULL;
 		}
@@ -33,7 +37,7 @@
 		}
 		p = fgets(status, 5, fp);
 		fclose(fp);
-		if(!p || strcmp(status, "up\n") != 0) {
+		if (!p || strcmp(status, "up\n") != 0) {
 			return NULL;
 		}
 
@@ -59,7 +63,8 @@
 		sscanf(datastart + 1, " %*d   %d  %*d  %*d\t\t  %*d\t   "
 		       "%*d\t\t%*d\t\t %*d\t  %*d\t\t %*d", &cur);
 
-		return bprintf("%d", (int)((float)cur / total * 100));
+		/* 70 is the max of /proc/net/wireless */
+		return bprintf("%d", (int)((float)cur / 70 * 100));
 	}
 
 	const char *
@@ -71,8 +76,8 @@
 
 		memset(&wreq, 0, sizeof(struct iwreq));
 		wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
-		if (esnprintf(wreq.ifr_name, sizeof(wreq.ifr_name),
-		              "%s", interface) < 0) {
+		if (esnprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s",
+		              interface) < 0) {
 			return NULL;
 		}
 
@@ -150,8 +155,7 @@
 			if (nr.nr_max_rssi) {
 				q = IEEE80211_NODEREQ_RSSI(&nr);
 			} else {
-				q = nr.nr_rssi >= -50 ? 100 : (nr.nr_rssi <= -100 ? 0 :
-				(2 * (nr.nr_rssi + 100)));
+				q = RSSI_TO_PERC(nr.nr_rssi);
 			}
 			return bprintf("%d", q);
 		}
@@ -168,6 +172,95 @@
 			return bprintf("%s", nr.nr_nwid);
 		}
 
+		return NULL;
+	}
+#elif defined(__FreeBSD__)
+	#include <net/if.h>
+	#include <net80211/ieee80211_ioctl.h>
+
+	int
+	load_ieee80211req(int sock, const char *interface, void *data, int type, size_t *len)
+	{
+		char warn_buf[256];
+		struct ieee80211req ireq;
+		memset(&ireq, 0, sizeof(ireq));
+		ireq.i_type = type;
+		ireq.i_data = (caddr_t) data;
+		ireq.i_len = *len;
+
+		strlcpy(ireq.i_name, interface, sizeof(ireq.i_name));
+		if (ioctl(sock, SIOCG80211, &ireq) < 0) {
+			snprintf(warn_buf,  sizeof(warn_buf),
+					"ioctl: 'SIOCG80211': %d", type);
+			warn(warn_buf);
+			return 0;
+		}
+
+		*len = ireq.i_len;
+		return 1;
+	}
+
+	const char *
+	wifi_perc(const char *interface)
+	{
+		union {
+			struct ieee80211req_sta_req sta;
+			uint8_t buf[24 * 1024];
+		} info;
+		uint8_t bssid[IEEE80211_ADDR_LEN];
+		int rssi_dbm;
+		int sockfd;
+		size_t len;
+
+		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			warn("socket 'AF_INET':");
+			return 0;
+		}
+
+		/* Retreive MAC address of interface */
+		len = IEEE80211_ADDR_LEN;
+		if (load_ieee80211req(sockfd, interface, &bssid, IEEE80211_IOC_BSSID, &len))
+		{
+			/* Retrieve info on station with above BSSID */
+			memset(&info, 0, sizeof(info));
+			memcpy(info.sta.is_u.macaddr, bssid, sizeof(bssid));
+
+			len = sizeof(info);
+			if (load_ieee80211req(sockfd, interface, &info, IEEE80211_IOC_STA_INFO, &len)) {
+				rssi_dbm = info.sta.info[0].isi_noise +
+ 					         info.sta.info[0].isi_rssi / 2;
+				return bprintf("%d", RSSI_TO_PERC(rssi_dbm));
+			}
+		}
+
+		close(sockfd);
+		return NULL;
+	}
+
+	const char *
+	wifi_essid(const char *interface)
+	{
+		char ssid[IEEE80211_NWID_LEN + 1];
+		size_t len;
+		int sockfd;
+
+		if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+			warn("socket 'AF_INET':");
+			return 0;
+		}
+
+		len = sizeof(ssid);
+		memset(&ssid, 0, len);
+		if (load_ieee80211req(sockfd, interface, &ssid, IEEE80211_IOC_SSID, &len )) {
+			if (len < sizeof(ssid))
+				len += 1;
+			else
+				len = sizeof(ssid);
+
+			ssid[len - 1] = '\0';
+			return bprintf("%s", ssid);
+		}
+
 		return NULL;
 	}
 #endif