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## /usr/lib/network/globals needs to be sourced before this file
## Determine the system interface of an rfkill device
# $1: interface name
# $2: rfkill name
get_rf_path() {
local interface=$1 rfkill_name=${2:-auto} path
if [[ $rfkill_name == "auto" ]]; then
path=$(find -L "/sys/class/net/$interface/" -maxdepth 2 -type d -name "rfkill*" 2> /dev/null | head -n 1)
if [[ $path ]]; then
echo "$path"
return 0
fi
report_error "No rfkill switch available on interface '$interface'"
else
for path in /sys/class/rfkill/*; do
if [[ $(< "$path/name") == "$rfkill_name" ]]; then
echo "$path"
return 0
fi
done
report_error "No rfkill switch with name '$rfkill_name'"
fi
return 1
}
## Unblock transmission through a wireless device
# $1: interface name
# $2: rfkill name
enable_rf() {
local interface=$1 rfkill=$2 path hard soft
path=$(get_rf_path "$interface" "$rfkill") || return 1
read hard < "$path/hard"
read soft < "$path/soft"
if (( hard )); then
report_error "Transmission is hard-blocked on interface '$interface'"
return 1
elif (( soft )); then
report_debug "$FUNCNAME: echo 0 > '$path/soft'"
echo 0 > "$path/soft"
timeout_wait 1 '(( ! $(< "$path/soft") ))'
fi
}
## Block transmission through a wireless device
# $1: interface name
# $2: rfkill name
disable_rf() {
local interface=$1 rfkill=$2 path
path=$(get_rf_path "$interface" "$rfkill") || return 1
report_debug "$FUNCNAME: echo 1 > '$path/soft'"
echo 1 > "$path/soft"
timeout_wait 1 '(( $(< "$path/soft") ))'
}
# vim: ft=sh ts=4 et sw=4:
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