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init.d: busybox start-stop-daemon support, absence of useradd/adduser support

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bol-van 2021-11-06 10:55:54 +03:00
parent 780bae9c42
commit 33be0cd8a0
1 changed files with 53 additions and 47 deletions
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100
init.d/sysv/functions
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@ -4,11 +4,59 @@
# SHOULD EDIT config
. "$ZAPRET_BASE/config"
PIDDIR=/var/run
IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh"
exists()
{
which "$1" >/dev/null 2>/dev/null
}
existf()
{
type "$1" >/dev/null 2>/dev/null
}
is_linked_to_busybox()
{
local IFS F P
IFS=:
for path in $PATH; do
F=$path/$1
P="$(readlink $F)"
if [ -z "$P" ] && [ -x $F ] && [ ! -L $F ]; then return 1; fi
[ "${P%busybox*}" != "$P" ] && return
done
}
user_exists()
{
id -u $1 >/dev/null 2>/dev/null
}
useradd_compat()
{
# $1 - username
if exists useradd ; then
useradd --no-create-home --system --shell /bin/false $1
elif is_linked_to_busybox adduser ; then
# busybox has special adduser syntax
adduser -S -H -D $1
elif exists adduser; then
adduser --no-create-home --system --disabled-login $1
fi
user_exists $1
}
prepare_user()
{
# $WS_USER is required to prevent redirection of the traffic originating from TPWS itself
# otherwise infinite loop will occur
# also its good idea not to run tpws as root
user_exists $WS_USER || {
# fallback to daemon if we cant add WS_USER
useradd_compat $WS_USER || WS_USER=daemon
}
}
WS_USER=tpws
prepare_user
PIDDIR=/var/run
IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh"
[ -n "$QNUM" ] || QNUM=200
[ -n "$NFQWS" ] || NFQWS="$ZAPRET_BASE/nfq/nfqws"
@ -42,14 +90,6 @@ CUSTOM_SCRIPT="$ZAPRET_BASE/init.d/sysv/custom"
IPSET_EXCLUDE="-m set ! --match-set nozapret"
IPSET_EXCLUDE6="-m set ! --match-set nozapret6"
exists()
{
which "$1" >/dev/null 2>/dev/null
}
existf()
{
type "$1" >/dev/null 2>/dev/null
}
on_off_function()
{
@ -359,7 +399,7 @@ run_daemon()
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
echo "Starting daemon $1: $2 $3"
if exists start-stop-daemon ; then
start-stop-daemon --start --pidfile "$PIDFILE" --background --make-pidfile --exec "$2" -- $3
start-stop-daemon -S -p "$PIDFILE" -m -b -x "$2" -- $3
else
if [ -f "$PIDFILE" ] && pgrep -F "$PIDFILE" "$DAEMONBASE" >/dev/null; then
echo already running
@ -384,7 +424,7 @@ stop_daemon()
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
echo "Stopping daemon $1: $2"
if exists start-stop-daemon ; then
start-stop-daemon --stop --pidfile "$PIDFILE" --exec "$2"
start-stop-daemon -K -p "$PIDFILE" -x "$2"
else
if [ -f "$PIDFILE" ]; then
read PID <"$PIDFILE"
@ -402,37 +442,6 @@ do_daemon()
}
is_linked_to_busybox()
{
local IFS F P
IFS=:
for path in $PATH; do
F=$path/$1
P="$(readlink $F)"
if [ -z "$P" ] && [ -x $F ] && [ ! -L $F ]; then return 1; fi
[ "${P%busybox*}" != "$P" ] && return
done
}
useradd_compat()
{
# $1 - username
if exists useradd ; then
useradd --no-create-home --system --shell /bin/false $1
elif is_linked_to_busybox adduser ; then
# busybox has special adduser syntax
adduser -S -H -D $1
elif exists adduser; then
adduser --system --no-create-home --disabled-login $1
fi
}
prepare_user()
{
# $WS_USER is required to prevent redirection of the traffic originating from TPWS itself
# otherwise infinite loop will occur
# also its good idea not to run tpws as root
id -u $WS_USER >/dev/null 2>/dev/null || useradd_compat $WS_USER
}
do_tpws()
{
# $1 : 1 - run, 0 - stop
@ -461,8 +470,6 @@ do_tpws_socks()
# $2 : daemon number
# $3 : daemon args
[ "$1" = "1" ] && prepare_user
[ "$DISABLE_IPV4" = "1" ] && [ "$DISABLE_IPV6" = "1" ] && return 0
local opt="$TPWS_OPT_BASE --socks"
@ -478,7 +485,6 @@ do_nfqws()
# $2 : daemon number
# $3 : daemon args
[ "$1" = "1" ] && prepare_user
do_daemon $1 $2 "$NFQWS" "$NFQWS_OPT_BASE $3"
}