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#! /bin/bash
. /usr/lib/network/globals
NETCTL_VERSION=notpackaged
usage() {
cat << END
Usage: netctl {COMMAND} [PROFILE]
[--help|--version]
Commands:
list List available profiles
store Save which profiles are active
restore Load saved profiles
stop-all Stops all profiles.
start [PROFILE] Start a profile
stop [PROFILE] Stop a profile
restart [PROFILE] Restart a profile
switch-to [PROFILE] Switch to a profile
status [PROFILE] Show runtime status of a profile
enable [PROFILE] Enable the systemd unit for a profile
disable [PROFILE] Disable the systemd unit for a profile
reenable [PROFILE] Reenable the systemd unit for a profile
END
}
list() {
local indicators=( '*' ' ' )
list_profiles | while read -r Profile; do
systemctl is-active --quiet "netctl@$Profile.service" &> /dev/null
# Make the return variable boolean
[[ $? -eq 0 ]]; printf '%s %s\n' "${indicators[$?]}" "$Profile"
done
}
store() {
systemctl list-units --type=service --full --no-legend --no-pager | \
cut -d\ -f1 | grep "^netctl@" > "$STATE_FILE"
}
restore() {
if [[ ! -r $STATE_FILE ]]; then
exit_error "Could not read state file '$STATE_FILE'"
fi
mapfile -t Units < "$STATE_FILE"
do_debug systemctl start "${Units[@]}"
}
stop_all() {
# We cannot pipe to mapfile, as the end of a pipe is inside a subshell
mapfile -t Profiles < <(list_profiles)
do_debug systemctl stop "${Profiles[@]/#/netctl@}" 2> \
>(grep -Fv "not loaded" >&2)
}
switch_to() {
cd "$PROFILE_DIR"
if [[ ! -r $1 ]]; then
exit_error "Profile '$1' does not exist or is not readable"
fi
# We assume interface names are not quoted
# Using read removes leading whitespace
read InterfaceLine < \
<(grep -om1 "^[[:space:]]*Interface=[[:alnum:]:._-]\+" "$1")
if [[ -z $InterfaceLine ]]; then
exit_error "Profile '$1' does not specify an interface"
fi
mapfile -t AllProfiles < <(list_profiles)
mapfile -t Profiles < <(grep -Fl "$InterfaceLine" "${AllProfiles[@]}")
do_debug systemctl stop "${Profiles[@]/#/netctl@}" 2> \
>(grep -Fv "not loaded" >&2)
do_debug systemctl start "netctl@$1"
}
unit_enable() {
local unit="/etc/systemd/system/netctl@$1.service"
if [[ -e $unit ]]; then
report_error "A unit file for profile '$1' already exists"
return 1
fi
load_profile "$1"
echo ".include /usr/lib/systemd/system/netctl@.service" > "$unit"
echo -e "\n[Unit]" >> "$unit"
[[ -n $Description ]] && echo "Description=$Description" >> "$unit"
: ${BindsToInterfaces=$Interface}
printf 'BindsTo=sys-subsystem-net-devices-%s.device\n' \
"${BindsToInterfaces[@]}" >> "$unit"
if [[ -n $After ]]; then
printf 'After="netctl@%s.service"\n' "${After[@]//\"/\\\"}" >> "$unit"
fi
systemctl daemon-reload
systemctl reenable "netctl@$1.service"
}
unit_disable() {
local unit="/etc/systemd/system/netctl@$1.service"
if systemctl is-enabled --quiet "netctl@$1.service"; then
systemctl disable "netctl@$1.service"
fi
if [[ ! -f $unit ]]; then
report_error "No regular unit file found for profile '$1'"
return 1
fi
do_debug rm "$unit"
systemctl daemon-reload
}
case $# in
1)
case $1 in
--version)
report_notice "netctl version $NETCTL_VERSION";;
--help)
usage;;
list)
list;;
store|restore)
ensure_root "$(basename "$0")"
"$1";;
stop-all)
stop_all;;
*)
exit_error "$(usage)";;
esac;;
2)
case $1 in
start|stop|restart|status)
systemctl $1 "netctl@$2";;
switch-to)
ensure_root "$(basename "$0")"
switch_to "$2";;
enable|disable)
ensure_root "$(basename "$0")"
"unit_$1" "$2";;
reenable)
ensure_root "$(basename "$0")"
unit_disable "$2"
unit_enable "$2";;
*)
exit_error "$(usage)";;
esac;;
*)
exit_error "$(usage)";;
esac
# vim: ft=sh ts=4 et sw=4:
|
