blob: eae2ff351864ba9db1ae007c8380f30a12115e2e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#!/bin/sh
# Emit waybar JSON describing wifi link state.
#
# Uses iwd's D-Bus API for state + SSID (net.connman.iwd is a documented,
# stable interface) and /proc/net/wireless for signal strength. No reliance
# on iwctl's human-readable TTY output.
set -eu
iface=wlan0
svc=net.connman.iwd
down() {
printf '{"text":"wifi off","class":"down"}\n'
exit 0
}
# Locate the iwd object path for this interface.
station=$(busctl --system --json=short call "$svc" / \
org.freedesktop.DBus.ObjectManager GetManagedObjects 2>/dev/null |
jq -r --arg iface "$iface" '
(.data[0] // .data) as $objs
| $objs | to_entries[]
| select(.value["net.connman.iwd.Device"].Name.data == $iface)
| .key' 2>/dev/null || true)
[ -n "$station" ] || down
state=$(busctl --system --json=short get-property "$svc" "$station" \
net.connman.iwd.Station State 2>/dev/null | jq -r '.data' 2>/dev/null || true)
[ "$state" = "connected" ] || down
netpath=$(busctl --system --json=short get-property "$svc" "$station" \
net.connman.iwd.Station ConnectedNetwork | jq -r '.data')
ssid=$(busctl --system --json=short get-property "$svc" "$netpath" \
net.connman.iwd.Network Name | jq -r '.data')
# /proc/net/wireless: "<iface>: <status> <qual>. <level>. <noise>. ..."
# We want <level> (column 4), which is dBm. Strip trailing dot.
rssi=$(awk -v i="$iface:" '$1==i { sub(/\./, "", $4); print $4; exit }' /proc/net/wireless)
rssi=${rssi:-0}
pct=$(awk -v r="$rssi" 'BEGIN{p=2*(r+100); if(p>100)p=100; if(p<0)p=0; printf "%d",p}')
color=$(awk -v p="$pct" 'BEGIN{
if (p < 20) print "#fb4934"
else if (p < 40) print "#fe8019"
else if (p < 70) print "#fabd2f"
else print "#b8bb26"
}')
printf '{"text":"%s <span color=\x27%s\x27>%s%%</span>","class":"up","tooltip":"%s · %s dBm"}\n' \
"$ssid" "$color" "$pct" "$iface" "$rssi"
|
