mirror of https://github.com/bol-van/zapret/
bol-van
3 years ago
3 changed files with 338 additions and 578 deletions
@ -1,130 +1,60 @@ |
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# init script functions library for desktop linux systems |
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. /lib/functions/network.sh |
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|
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[ -n "$ZAPRET_BASE" ] || ZAPRET_BASE=/opt/zapret |
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# SHOULD EDIT config |
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. "$ZAPRET_BASE/config" |
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|
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exists() |
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{ |
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which "$1" >/dev/null 2>/dev/null |
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} |
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existf() |
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{ |
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type "$1" >/dev/null 2>/dev/null |
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} |
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is_linked_to_busybox() |
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{ |
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local IFS F P |
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|
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IFS=: |
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for path in $PATH; do |
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F=$path/$1 |
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P="$(readlink $F)" |
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if [ -z "$P" ] && [ -x $F ] && [ ! -L $F ]; then return 1; fi |
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[ "${P%busybox*}" != "$P" ] && return |
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done |
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} |
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user_exists() |
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{ |
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id -u $1 >/dev/null 2>/dev/null |
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} |
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useradd_compat() |
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{ |
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# $1 - username |
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|
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# skip for readonly systems |
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[ -w "/etc" ] && { |
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if exists useradd ; then |
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useradd --no-create-home --system --shell /bin/false $1 |
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elif is_linked_to_busybox adduser ; then |
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# busybox has special adduser syntax |
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adduser -S -H -D $1 |
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elif exists adduser; then |
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adduser --no-create-home --system --disabled-login $1 |
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fi |
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} |
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user_exists $1 |
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} |
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prepare_user() |
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{ |
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# $WS_USER is required to prevent redirection of the traffic originating from TPWS itself |
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# otherwise infinite loop will occur |
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# also its good idea not to run tpws as root |
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user_exists $WS_USER || { |
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# fallback to daemon if we cant add WS_USER |
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useradd_compat $WS_USER || { |
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for user in daemon nobody; do |
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user_exists $user && { |
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WS_USER=$user |
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return 0 |
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} |
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done |
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return 1 |
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} |
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} |
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} |
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|
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# this complex user selection allows to survive in any locked/readonly/minimalistic environment |
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[ -n "$WS_USER" ] || WS_USER=tpws |
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if prepare_user; then |
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USEROPT="--user=$WS_USER" |
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else |
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WS_USER=1 |
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USEROPT="--uid $WS_USER:$WS_USER" |
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fi |
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|
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PIDDIR=/var/run |
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IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh" |
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|
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[ -n "$QNUM" ] || QNUM=200 |
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[ -n "$NFQWS" ] || NFQWS="$ZAPRET_BASE/nfq/nfqws" |
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NFQWS_OPT_BASE="$USEROPT --dpi-desync-fwmark=$DESYNC_MARK" |
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NFQWS_OPT_DESYNC_HTTP="${NFQWS_OPT_DESYNC_HTTP:-$NFQWS_OPT_DESYNC}" |
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NFQWS_OPT_DESYNC_HTTPS="${NFQWS_OPT_DESYNC_HTTPS:-$NFQWS_OPT_DESYNC}" |
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NFQWS_OPT_DESYNC_HTTP6="${NFQWS_OPT_DESYNC_HTTP6:-$NFQWS_OPT_DESYNC_HTTP}" |
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NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}" |
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|
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[ -n "$TPPORT" ] || TPPORT=988 |
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[ -n "$TPWS" ] || TPWS="$ZAPRET_BASE/tpws/tpws" |
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[ -n "$WS_USER" ] || WS_USER=daemon |
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TPWS_LOCALHOST4=127.0.0.127 |
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HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts.txt.gz" |
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[ -f "$HOSTLIST" ] || HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts.txt" |
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[ -f "$HOSTLIST" ] || HOSTLIST="$ZAPRET_BASE/ipset/zapret-hosts-user.txt" |
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|
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TPWS_OPT_BASE="$USEROPT" |
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TPWS_OPT_BASE4="--bind-addr=$TPWS_LOCALHOST4" |
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TPWS_OPT_BASE6="--bind-addr=::1" |
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TPWS_WAIT="--bind-wait-ifup=30 --bind-wait-ip=30" |
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TPWS_WAIT_SOCKS6="$TPWS_WAIT --bind-wait-ip-linklocal=30" |
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# first wait for lan to ifup, then wait for bind-wait-ip-linklocal seconds for link local address and bind-wait-ip for any ipv6 as the worst case |
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TPWS_OPT_BASE6_PRE="--bind-linklocal=prefer $TPWS_WAIT --bind-wait-ip-linklocal=3" |
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|
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[ -n "$DESYNC_MARK" ] || DESYNC_MARK=0x40000000 |
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[ -n "$OPENWRT_LAN" ] || OPENWRT_LAN=lan |
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|
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# max wait time for the link local ipv6 on the LAN interface |
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LINKLOCAL_WAIT_SEC=5 |
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|
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CUSTOM_SCRIPT="$ZAPRET_BASE/init.d/sysv/custom" |
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IPSET_CR="$ZAPRET_BASE/ipset/create_ipset.sh" |
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|
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CUSTOM_SCRIPT="$ZAPRET_BASE/init.d/openwrt/custom" |
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[ -f "$CUSTOM_SCRIPT" ] && . "$CUSTOM_SCRIPT" |
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|
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IPSET_EXCLUDE="-m set ! --match-set nozapret" |
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IPSET_EXCLUDE6="-m set ! --match-set nozapret6" |
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|
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NFQWS_OPT_DESYNC_HTTP="${NFQWS_OPT_DESYNC_HTTP:-$NFQWS_OPT_DESYNC}" |
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NFQWS_OPT_DESYNC_HTTPS="${NFQWS_OPT_DESYNC_HTTPS:-$NFQWS_OPT_DESYNC}" |
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NFQWS_OPT_DESYNC_HTTP6="${NFQWS_OPT_DESYNC_HTTP6:-$NFQWS_OPT_DESYNC_HTTP}" |
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NFQWS_OPT_DESYNC_HTTPS6="${NFQWS_OPT_DESYNC_HTTPS6:-$NFQWS_OPT_DESYNC_HTTPS}" |
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|
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on_off_function() |
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exists() |
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{ |
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# $1 : function name on |
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# $2 : function name off |
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# $3 : 0 - off, 1 - on |
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local F="$1" |
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[ "$3" = "1" ] || F="$2" |
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shift |
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shift |
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shift |
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"$F" "$@" |
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which "$1" >/dev/null 2>/dev/null |
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} |
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existf() |
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{ |
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type "$1" >/dev/null 2>/dev/null |
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} |
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|
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|
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# can be multiple ipv6 outgoing interfaces |
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# uplink from isp, tunnelbroker, vpn, ... |
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# want them all. who knows what's the real one that blocks sites |
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# dont want any manual configuration - want to do it automatically |
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# standard network_find_wan[6] return only the first |
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# we use low level function from network.sh to avoid this limitation |
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# it can change theoretically and stop working |
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|
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network_find_wan_all() |
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{ |
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__network_ifstatus "$1" "" "[@.route[@.target='0.0.0.0' && [email protected]]].interface" "" 10 2>/dev/null && return |
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network_find_wan $1 |
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} |
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network_find_wan6_all() |
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{ |
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__network_ifstatus "$1" "" "[@.route[@.target='::' && [email protected]]].interface" "" 10 2>/dev/null && return |
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network_find_wan6 $1 |
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} |
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|
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ipt() |
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{ |
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iptables -C "$@" >/dev/null 2>/dev/null || iptables -I "$@" |
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@ -133,10 +63,6 @@ ipt_del() |
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{ |
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iptables -C "$@" >/dev/null 2>/dev/null && iptables -D "$@" |
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} |
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ipt_add_del() |
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{ |
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on_off_function ipt ipt_del "$@" |
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} |
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ipt6() |
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{ |
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ip6tables -C "$@" >/dev/null 2>/dev/null || ip6tables -I "$@" |
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@ -145,10 +71,6 @@ ipt6_del() |
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{ |
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ip6tables -C "$@" >/dev/null 2>/dev/null && ip6tables -D "$@" |
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} |
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ipt6_add_del() |
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{ |
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on_off_function ipt6 ipt6_del "$@" |
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} |
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|
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# there's no route_localnet for ipv6 |
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# the best we can is to route to link local of the incoming interface |
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@ -158,355 +80,212 @@ ipt6_add_del() |
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|
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get_ipv6_linklocal() |
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{ |
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# $1 - interface name. if empty - any interface |
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local dev |
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[ -n "$1" ] && dev="dev $1" |
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope link.*$/\1/;t;d' | head -n 1 |
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# $1 - interface name. if empty - any interface |
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if exists ip ; then |
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local dev |
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[ -n "$1" ] && dev="dev $1" |
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope link.*$/\1/;t;d' | head -n 1 |
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else |
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ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Link.*$/\1/;t;d' | head -n 1 |
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fi |
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} |
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get_ipv6_global() |
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{ |
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# $1 - interface name. if empty - any interface |
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local dev |
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[ -n "$1" ] && dev="dev $1" |
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope global.*$/\1/;t;d' | head -n 1 |
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# $1 - interface name. if empty - any interface |
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if exists ip ; then |
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local dev |
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[ -n "$1" ] && dev="dev $1" |
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ip addr show $dev | sed -e 's/^.*inet6 \([^ ]*\)\/[0-9]* scope global.*$/\1/;t;d' | head -n 1 |
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else |
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ifconfig $1 | sed -re 's/^.*inet6 addr: ([^ ]*)\/[0-9]* Scope:Global.*$/\1/;t;d' | head -n 1 |
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fi |
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} |
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|
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iface_is_up() |
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{ |
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# $1 - interface name |
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[ -f /sys/class/net/$1/operstate ] || return |
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local state |
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read state </sys/class/net/$1/operstate |
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[ "$state" != "down" ] |
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} |
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wait_ifup() |
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{ |
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# $1 - interface name |
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local ct=0 |
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while |
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iface_is_up $1 && return |
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[ "$ct" -ge "$IFUP_WAIT_SEC" ] && break |
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echo waiting for ifup of $1 for another $(($IFUP_WAIT_SEC - $ct)) seconds ... |
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ct=$(($ct+1)) |
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sleep 1 |
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do :; done |
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false |
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} |
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|
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dnat6_target() |
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{ |
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# $1 - lan network name |
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# $2 - var to store target ip6 |
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# get target ip address for DNAT. prefer link locals |
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# tpws should be as inaccessible from outside as possible |
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# link local address can appear not immediately after ifup |
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# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts) |
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local DNAT6_TARGET DVAR=DNAT6_TARGET_$1 |
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DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g') |
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eval DNAT6_TARGET="\$$DVAR" |
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[ -n "$2" ] && eval $2='' |
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[ -n "$DNAT6_TARGET" ] || { |
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local ct=0 |
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while |
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DNAT6_TARGET=$(get_ipv6_linklocal $1) |
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[ -n "$DNAT6_TARGET" ] && break |
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[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break |
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echo $1: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ... |
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ct=$(($ct+1)) |
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sleep 1 |
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do :; done |
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[ -n "$DNAT6_TARGET" ] || { |
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echo $1: no link local. getting global |
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DNAT6_TARGET=$(get_ipv6_global $1) |
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[ -n "$DNAT6_TARGET" ] || { |
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echo $1: could not get any address |
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DNAT6_TARGET=- |
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} |
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} |
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eval $DVAR="$DNAT6_TARGET" |
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} |
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[ -n "$2" ] && eval $2="$DNAT6_TARGET" |
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# $1 - lan network name |
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# $2 - var to store target ip6 |
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# get target ip address for DNAT. prefer link locals |
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# tpws should be as inaccessible from outside as possible |
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# link local address can appear not immediately after ifup |
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# DNAT6_TARGET=- means attempt was made but address was not found (to avoid multiple re-attempts) |
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local DNAT6_TARGET DVAR=DNAT6_TARGET_$1 |
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DVAR=$(echo $DVAR | sed 's/[^a-zA-Z0-9_]/_/g') |
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eval DNAT6_TARGET="\$$DVAR" |
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[ -n "$2" ] && eval $2='' |
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[ -n "$DNAT6_TARGET" ] || { |
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# no reason to query if its down |
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network_is_up $1 || return |
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local DEVICE |
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network_get_device DEVICE $1 |
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local ct=0 |
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while |
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DNAT6_TARGET=$(get_ipv6_linklocal $DEVICE) |
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[ -n "$DNAT6_TARGET" ] && break |
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[ "$ct" -ge "$LINKLOCAL_WAIT_SEC" ] && break |
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echo $DEVICE: waiting for the link local for another $(($LINKLOCAL_WAIT_SEC - $ct)) seconds ... |
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ct=$(($ct+1)) |
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sleep 1 |
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do :; done |
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[ -n "$DNAT6_TARGET" ] || { |
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echo $DEVICE: no link local. getting global |
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DNAT6_TARGET=$(get_ipv6_global $DEVICE) |
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[ -n "$DNAT6_TARGET" ] || { |
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echo $DEVICE: could not get any address |
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DNAT6_TARGET=- |
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} |
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} |
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eval $DVAR="$DNAT6_TARGET" |
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} |
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[ -n "$2" ] && eval $2="$DNAT6_TARGET" |
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} |
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prepare_tpws_fw4() |
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{ |
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# otherwise linux kernel will treat 127.0.0.0/8 as "martian" ip and refuse routing to it |
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# NOTE : kernels <3.6 do not have this feature. consider upgrading or change DNAT to REDIRECT and do not bind to 127.0.0.0/8 |
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[ -n "$IFACE_LAN" ] && { |
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iptables -N input_rule_zapret 2>/dev/null |
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iptables -F input_rule_zapret |
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iptables -A input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN |
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iptables -A input_rule_zapret -d 127.0.0.0/8 -j DROP |
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for lan in $IFACE_LAN ; do |
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ipt INPUT -i $lan -j input_rule_zapret |
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sysctl -q -w net.ipv4.conf.$lan.route_localnet=1 |
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done |
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} |
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} |
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unprepare_tpws_fw4() |
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{ |
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[ -n "$IFACE_LAN" ] && { |
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for lan in $IFACE_LAN ; do |
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ipt_del INPUT -i $lan -j input_rule_zapret |
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sysctl -q -w net.ipv4.conf.$lan.route_localnet=0 |
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done |
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iptables -F input_rule_zapret 2>/dev/null |
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iptables -X input_rule_zapret 2>/dev/null |
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} |
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} |
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unprepare_tpws_fw() |
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{ |
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unprepare_tpws_fw4 |
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} |
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|
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|
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print_op() |
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{ |
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if [ "$1" = "1" ]; then |
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echo "Adding ip$4tables rule for $3 : $2" |
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else |
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echo "Deleting ip$4tables rule for $3 : $2" |
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fi |
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} |
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|
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fw_tpws4() |
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{ |
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# $1 - 1 - add, 0 - del |
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# $2 - iptable filter for ipv4 |
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# $3 - tpws port |
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[ "$DISABLE_IPV4" = "1" ] || { |
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[ "$1" = 1 ] && prepare_tpws_fw4 |
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print_op $1 "$2" "tpws (port $3)" |
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for lan in $IFACE_LAN ; do |
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ipt_add_del $1 PREROUTING -t nat -i $lan -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3 |
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done |
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if [ -n "$IFACE_WAN" ]; then |
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for wan in $IFACE_WAN; do |
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ipt_add_del $1 OUTPUT -t nat -o $wan -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3 |
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done |
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else |
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ipt_add_del $1 OUTPUT -t nat -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$3 |
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fi |
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} |
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} |
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fw_tpws6() |
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{ |
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# $1 - 1 - add, 0 - del |
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# $2 - iptable filter for ipv6 |
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# $3 - tpws port |
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[ "$DISABLE_IPV6" = "1" ] || { |
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print_op $1 "$2" "tpws (port $3)" 6 |
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local DNAT6 |
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for lan in $IFACE_LAN ; do |
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dnat6_target $lan DNAT6 |
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[ "$DNAT6" != "-" ] && ipt6_add_del $1 PREROUTING -t nat -i $lan -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [$DNAT6]:$3 |
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done |
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if [ -n "$IFACE_WAN" ]; then |
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for wan in $IFACE_WAN; do |
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ipt6_add_del $1 OUTPUT -t nat -o $wan -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$3 |
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done |
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else |
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ipt6_add_del $1 OUTPUT -t nat -m owner ! --uid-owner $WS_USER -p tcp $2 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$3 |
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fi |
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} |
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} |
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fw_tpws() |
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fw_nfqws_pre4() |
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{ |
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# $1 - 1 - add, 0 - del |
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# $2 - iptable filter for ipv4 |
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# $3 - iptable filter for ipv6 |
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# $4 - tpws port |
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fw_tpws4 $1 "$2" $4 |
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fw_tpws6 $1 "$3" $4 |
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} |
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# $1 - filter ipv4 |
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# $2 - queue number |
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|
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local DEVICE wan_iface |
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|
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fw_nfqws_pre4() |
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{ |
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# $1 - 1 - add, 0 - del |
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# $2 - iptable filter for ipv4 |
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# $3 - queue number |
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[ "$DISABLE_IPV4" = "1" ] || { |
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print_op $1 "$2" "nfqws prerouting (qnum $3)" |
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if [ -n "$IFACE_WAN" ]; then |
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for wan in $IFACE_WAN; do |
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ipt_add_del $1 PREROUTING -t mangle -i $wan -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass |
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done |
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else |
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ipt_add_del $1 PREROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $3 --queue-bypass |
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fi |
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} |
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[ "$DISABLE_IPV4" = "1" ] || { |
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network_find_wan_all wan_iface |
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for ext_iface in $wan_iface; do |
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network_get_device DEVICE $ext_iface |
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ipt PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE src -j NFQUEUE --queue-num $2 --queue-bypass |
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done |
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} |
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} |
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fw_nfqws_pre6() |
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{ |
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# $1 - 1 - add, 0 - del |
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# $2 - iptable filter for ipv6 |
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# $3 - queue number |
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[ "$DISABLE_IPV6" = "1" ] || { |
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print_op $1 "$2" "nfqws prerouting (qnum $3)" 6 |
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if [ -n "$IFACE_WAN" ]; then |
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for wan in $IFACE_WAN; do |
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ipt6_add_del $1 PREROUTING -t mangle -i $wan -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass |
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done |
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else |
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ipt6_add_del $1 PREROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $3 --queue-bypass |
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fi |
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} |
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# $1 - filter ipv6 |
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# $2 - queue number |
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|
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local DEVICE wan_iface |
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|
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[ "$DISABLE_IPV6" = "1" ] || { |
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network_find_wan6_all wan_iface |
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for ext_iface in $wan_iface; do |
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network_get_device DEVICE $ext_iface |
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ipt6 PREROUTING -t mangle -i $DEVICE -p tcp $1 $IPSET_EXCLUDE6 src -j NFQUEUE --queue-num $2 --queue-bypass |
|||
done |
|||
} |
|||
} |
|||
fw_nfqws_pre() |
|||
{ |
|||
# $1 - 1 - add, 0 - del |
|||
# $2 - iptable filter for ipv4 |
|||
# $3 - iptable filter for ipv6 |
|||
# $4 - queue number |
|||
fw_nfqws_pre4 $1 "$2" $4 |
|||
fw_nfqws_pre6 $1 "$3" $4 |
|||
# $1 - filter ipv4 |
|||
# $2 - filter ipv6 |
|||
# $3 - queue number |
|||
|
|||
fw_nfqws_pre4 "$1" $3 |
|||
fw_nfqws_pre6 "$2" $3 |
|||
} |
|||
fw_nfqws_post4() |
|||
{ |
|||
# $1 - 1 - add, 0 - del |
|||
# $2 - iptable filter for ipv4 |
|||
# $3 - queue number |
|||
[ "$DISABLE_IPV4" = "1" ] || { |
|||
print_op $1 "$2" "nfqws postrouting (qnum $3)" |
|||
if [ -n "$IFACE_WAN" ]; then |
|||
for wan in $IFACE_WAN; do |
|||
ipt_add_del $1 POSTROUTING -t mangle -o $wan -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass |
|||
done |
|||
else |
|||
ipt_add_del $1 POSTROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $3 --queue-bypass |
|||
fi |
|||
} |
|||
# $1 - filter ipv4 |
|||
# $2 - queue number |
|||
|
|||
local DEVICE wan_iface |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] || { |
|||
network_find_wan_all wan_iface |
|||
for ext_iface in $wan_iface; do |
|||
network_get_device DEVICE $ext_iface |
|||
ipt POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE dst -j NFQUEUE --queue-num $2 --queue-bypass |
|||
done |
|||
} |
|||
} |
|||
fw_nfqws_post6() |
|||
{ |
|||
# $1 - 1 - add, 0 - del |
|||
# $2 - iptable filter for ipv6 |
|||
# $3 - queue number |
|||
[ "$DISABLE_IPV6" = "1" ] || { |
|||
print_op $1 "$2" "nfqws postrouting (qnum $3)" 6 |
|||
if [ -n "$IFACE_WAN" ]; then |
|||
for wan in $IFACE_WAN; do |
|||
ipt6_add_del $1 POSTROUTING -t mangle -o $wan -p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass |
|||
done |
|||
else |
|||
ipt6_add_del $1 POSTROUTING -t mangle -p tcp $2 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $3 --queue-bypass |
|||
fi |
|||
} |
|||
} |
|||
fw_nfqws_post() |
|||
{ |
|||
# $1 - 1 - add, 0 - del |
|||
# $2 - iptable filter for ipv4 |
|||
# $3 - iptable filter for ipv6 |
|||
# $4 - queue number |
|||
fw_nfqws_post4 $1 "$2" $4 |
|||
fw_nfqws_post6 $1 "$3" $4 |
|||
} |
|||
|
|||
# $1 - filter ipv6 |
|||
# $2 - queue number |
|||
|
|||
run_daemon() |
|||
{ |
|||
# $1 - daemon number : 1,2,3,... |
|||
# $2 - daemon |
|||
# $3 - daemon args |
|||
# use $PIDDIR/$DAEMONBASE$1.pid as pidfile |
|||
local DEVICE wan_iface |
|||
|
|||
local DAEMONBASE=$(basename $2) |
|||
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid |
|||
echo "Starting daemon $1: $2 $3" |
|||
if exists start-stop-daemon ; then |
|||
start-stop-daemon -S -p "$PIDFILE" -m -b -x "$2" -- $3 |
|||
else |
|||
if [ -f "$PIDFILE" ] && pgrep -F "$PIDFILE" "$DAEMONBASE" >/dev/null; then |
|||
echo already running |
|||
else |
|||
"$2" $3 >/dev/null 2>/dev/null & |
|||
PID=$! |
|||
if [ -n "$PID" ]; then |
|||
echo $PID >$PIDFILE |
|||
else |
|||
echo could not start daemon $1 : $2 $3 |
|||
false |
|||
fi |
|||
fi |
|||
fi |
|||
} |
|||
stop_daemon() |
|||
{ |
|||
# $1 - daemon number : 1,2,3,... |
|||
# $2 - daemon |
|||
# use $PIDDIR/$DAEMONBASE$1.pid as pidfile |
|||
local DAEMONBASE=$(basename $2) |
|||
local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid |
|||
echo "Stopping daemon $1: $2" |
|||
if exists start-stop-daemon ; then |
|||
start-stop-daemon -K -p "$PIDFILE" -x "$2" |
|||
else |
|||
if [ -f "$PIDFILE" ]; then |
|||
read PID <"$PIDFILE" |
|||
kill $PID |
|||
rm -f "$PIDFILE" |
|||
else |
|||
echo no pidfile : $PIDFILE |
|||
fi |
|||
fi |
|||
[ "$DISABLE_IPV6" = "1" ] || { |
|||
network_find_wan6_all wan_iface |
|||
for ext_iface in $wan_iface; do |
|||
network_get_device DEVICE $ext_iface |
|||
ipt6 POSTROUTING -t mangle -o $DEVICE -p tcp $1 $IPSET_EXCLUDE6 dst -j NFQUEUE --queue-num $2 --queue-bypass |
|||
done |
|||
} |
|||
} |
|||
do_daemon() |
|||
fw_nfqws_post() |
|||
{ |
|||
# $1 - 1 - run, 0 - stop |
|||
on_off_function run_daemon stop_daemon "$@" |
|||
# $1 - filter ipv4 |
|||
# $2 - filter ipv6 |
|||
# $3 - queue number |
|||
|
|||
fw_nfqws_post4 "$1" $3 |
|||
fw_nfqws_post6 "$2" $3 |
|||
} |
|||
|
|||
|
|||
do_tpws() |
|||
IPT_OWNER="-m owner ! --uid-owner $WS_USER" |
|||
fw_tpws4() |
|||
{ |
|||
# $1 : 1 - run, 0 - stop |
|||
# $2 : daemon number |
|||
# $3 : daemon args |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] && [ "$DISABLE_IPV6" = "1" ] && return 0 |
|||
|
|||
local OPT="$TPWS_OPT_BASE" |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] || OPT="$OPT $TPWS_OPT_BASE4" |
|||
[ "$DISABLE_IPV6" = "1" ] || { |
|||
OPT="$OPT $TPWS_OPT_BASE6" |
|||
for lan in $IFACE_LAN; do |
|||
OPT="$OPT --bind-iface6=$lan $TPWS_OPT_BASE6_PRE" |
|||
done |
|||
} |
|||
|
|||
do_daemon $1 $2 "$TPWS" "$OPT $3" |
|||
# $1 - filter ipv6 |
|||
# $2 - tpws port |
|||
|
|||
local DEVICE wan_iface |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] || { |
|||
network_find_wan_all wan_iface |
|||
for ext_iface in $wan_iface; do |
|||
network_get_device DEVICE $ext_iface |
|||
ipt OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $1 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$2 |
|||
done |
|||
|
|||
# allow localnet route only to special tpws IP |
|||
iptables -N input_rule_zapret 2>/dev/null |
|||
ipt input_rule_zapret -d 127.0.0.0/8 -j DROP |
|||
ipt input_rule_zapret -d $TPWS_LOCALHOST4 -j RETURN |
|||
|
|||
for lan in $OPENWRT_LAN; do |
|||
network_get_device DEVICE $lan |
|||
[ -n "$DEVICE" ] || continue |
|||
ipt prerouting_rule -t nat -i $DEVICE -p tcp $1 $IPSET_EXCLUDE dst -j DNAT --to $TPWS_LOCALHOST4:$2 |
|||
ipt input_rule -i $DEVICE -j input_rule_zapret |
|||
sysctl -qw net.ipv4.conf.$DEVICE.route_localnet=1 |
|||
done |
|||
} |
|||
} |
|||
do_tpws_socks() |
|||
fw_tpws6() |
|||
{ |
|||
# $1 : 1 - run, 0 - stop |
|||
# $2 : daemon number |
|||
# $3 : daemon args |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] && [ "$DISABLE_IPV6" = "1" ] && return 0 |
|||
|
|||
local opt="$TPWS_OPT_BASE --socks" |
|||
|
|||
tpws_apply_socks_binds opt |
|||
|
|||
do_daemon $1 $2 "$TPWS" "$opt $3" |
|||
# $1 - filter ipv6 |
|||
# $2 - tpws port |
|||
|
|||
local DEVICE wan_iface DNAT6 |
|||
|
|||
[ "$DISABLE_IPV6" = "1" ] || { |
|||
network_find_wan6_all wan_iface |
|||
for ext_iface in $wan_iface; do |
|||
network_get_device DEVICE $ext_iface |
|||
ipt6 OUTPUT -t nat -o $DEVICE $IPT_OWNER -p tcp $1 $IPSET_EXCLUDE6 dst -j DNAT --to [::1]:$2 |
|||
done |
|||
for lan in $OPENWRT_LAN; do |
|||
network_get_device DEVICE $lan |
|||
[ -n "$DEVICE" ] || continue |
|||
dnat6_target $lan DNAT6 |
|||
[ "$DNAT6" != '-' ] && ipt6 PREROUTING -t nat -i $DEVICE -p tcp $1 $IPSET_EXCLUDE6 dst -j DNAT --to [$DNAT6]:$2 |
|||
done |
|||
} |
|||
} |
|||
|
|||
do_nfqws() |
|||
fw_tpws() |
|||
{ |
|||
# $1 : 1 - run, 0 - stop |
|||
# $2 : daemon number |
|||
# $3 : daemon args |
|||
# $1 - filter ipv4 |
|||
# $2 - filter ipv6 |
|||
# $3 - tpws port |
|||
|
|||
do_daemon $1 $2 "$NFQWS" "$NFQWS_OPT_BASE $3" |
|||
fw_tpws4 "$1" $3 |
|||
fw_tpws6 "$2" $3 |
|||
} |
|||
|
|||
|
|||
filter_apply_port_target() |
|||
{ |
|||
# $1 - var name of iptables filter |
|||
@ -522,7 +301,6 @@ filter_apply_port_target() |
|||
fi |
|||
eval $1="\"\$$1 $f\"" |
|||
} |
|||
|
|||
filter_apply_ipset_target4() |
|||
{ |
|||
# $1 - var name of ipv4 iptables filter |
|||
@ -544,11 +322,6 @@ filter_apply_ipset_target() |
|||
filter_apply_ipset_target4 $1 |
|||
filter_apply_ipset_target6 $2 |
|||
} |
|||
filter_apply_hostlist_target() |
|||
{ |
|||
# $1 - var name of tpws or nfqws params |
|||
[ "$MODE_FILTER" = "hostlist" ] && eval $1="\"\$$1 --hostlist=$HOSTLIST\"" |
|||
} |
|||
|
|||
get_nfqws_qnums() |
|||
{ |
|||
@ -556,7 +329,7 @@ get_nfqws_qnums() |
|||
# $2 - var name for ipv4 https |
|||
# $3 - var name for ipv6 http |
|||
# $4 - var name for ipv6 https |
|||
local _qn _qns _qn6 _qns6 |
|||
local _qn=x _qns=x _qn6=x _qns6=x |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] || { |
|||
_qn=$QNUM |
|||
@ -580,49 +353,99 @@ get_nfqws_qnums() |
|||
} |
|||
[ "$NFQWS_OPT_DESYNC_HTTPS6" = "$NFQWS_OPT_DESYNC_HTTP6" ] && _qns6=$_qn6; |
|||
} |
|||
[ "$MODE_HTTP" = 1 ] && { |
|||
eval $1=$_qn |
|||
eval $3=$_qn6 |
|||
} |
|||
[ "$MODE_HTTPS" = 1 ] && { |
|||
eval $2=$_qns |
|||
eval $4=$_qns6 |
|||
} |
|||
eval $1=$_qn |
|||
eval $2=$_qns |
|||
eval $3=$_qn6 |
|||
eval $4=$_qns6 |
|||
} |
|||
|
|||
tpws_apply_socks_binds() |
|||
create_ipset() |
|||
{ |
|||
local o |
|||
|
|||
[ "$DISABLE_IPV4" = "1" ] || o="--bind-addr=127.0.0.1" |
|||
[ "$DISABLE_IPV6" = "1" ] || o="$o --bind-addr=::1" |
|||
|
|||
for lan in $IFACE_LAN; do |
|||
[ "$DISABLE_IPV4" = "1" ] || o="$o --bind-iface4=$lan $TPWS_WAIT" |
|||
[ "$DISABLE_IPV6" = "1" ] || o="$o --bind-iface6=$lan --bind-linklocal=unwanted $TPWS_WAIT_SOCKS6" |
|||
done |
|||
eval $1="\"\$$1 $o\"" |
|||
echo "Creating ipset" |
|||
"$IPSET_CR" "$@" |
|||
} |
|||
|
|||
|
|||
create_ipset() |
|||
is_flow_offload_avail() |
|||
{ |
|||
echo "Creating ipset" |
|||
"$IPSET_CR" "$@" |
|||
# $1 = '' for ipv4, '6' for ipv6 |
|||
grep -q FLOWOFFLOAD /proc/net/ip$1_tables_targets |
|||
} |
|||
list_nfqws_rules() |
|||
{ |
|||
# $1 = '' for ipv4, '6' for ipv6 |
|||
ip$1tables -S POSTROUTING -t mangle | \ |
|||
grep -E "NFQUEUE --queue-num $QNUM --queue-bypass|NFQUEUE --queue-num $(($QNUM+1)) --queue-bypass|NFQUEUE --queue-num $(($QNUM+2)) --queue-bypass|NFQUEUE --queue-num $(($QNUM+3)) --queue-bypass" | \ |
|||
sed -re 's/^-A POSTROUTING (.*) -j NFQUEUE.*$/\1/' -e "s/-m mark ! --mark $DESYNC_MARK\/$DESYNC_MARK//" |
|||
} |
|||
reverse_nfqws_rule() |
|||
{ |
|||
sed -e 's/-o /-i /' -e 's/--dport /--sport /' -e 's/--dports /--sports /' -e 's/ dst$/ src/' -e 's/ dst / src /' |
|||
} |
|||
apply_flow_offloading_enable_rule() |
|||
{ |
|||
# $1 = '' for ipv4, '6' for ipv6 |
|||
local i off='-j FLOWOFFLOAD' |
|||
[ "$FLOWOFFLOAD" = "hardware" ] && off="$off --hw" |
|||
i="forwarding_rule_zapret -m comment --comment zapret_traffic_offloading_enable -m conntrack --ctstate RELATED,ESTABLISHED $off" |
|||
echo enabling ipv${1:-4} flow offloading : $i |
|||
ip$1tables -A $i |
|||
} |
|||
apply_flow_offloading_exempt_rule() |
|||
{ |
|||
# $1 = '' for ipv4, '6' for ipv6 |
|||
local i v |
|||
v=$1 |
|||
shift |
|||
i="forwarding_rule_zapret $@ -m comment --comment zapret_traffic_offloading_exemption -j RETURN" |
|||
echo applying ipv${v:-4} flow offloading exemption : $i |
|||
ip${v}tables -A $i |
|||
} |
|||
flow_offloading_exempt_v() |
|||
{ |
|||
# $1 = '' for ipv4, '6' for ipv6 |
|||
|
|||
is_flow_offload_avail $1 || return 0 |
|||
|
|||
ipt$1_del forwarding_rule -j forwarding_rule_zapret |
|||
ip$1tables -F forwarding_rule_zapret 2>/dev/null |
|||
ip$1tables -X forwarding_rule_zapret 2>/dev/null |
|||
|
|||
[ "$FLOWOFFLOAD" = 'software' -o "$FLOWOFFLOAD" = 'hardware' ] && { |
|||
ip$1tables -N forwarding_rule_zapret |
|||
|
|||
list_nfqws_rules $1 | |
|||
while read rule; do |
|||
apply_flow_offloading_exempt_rule "$1" $rule |
|||
done |
|||
|
|||
zapret_do_firewall() |
|||
list_nfqws_rules $1 | grep -v "connbytes" | reverse_nfqws_rule | |
|||
while read rule; do |
|||
apply_flow_offloading_exempt_rule "$1" $rule |
|||
done |
|||
|
|||
apply_flow_offloading_enable_rule $1 |
|||
|
|||
ipt$1 forwarding_rule -j forwarding_rule_zapret |
|||
} |
|||
|
|||
return 0 |
|||
} |
|||
flow_offloading_exempt() |
|||
{ |
|||
# $1 - 1 - add, 0 - del |
|||
[ "$DISABLE_IPV4" = "1" ] || flow_offloading_exempt_v |
|||
[ "$DISABLE_IPV6" = "1" ] || flow_offloading_exempt_v 6 |
|||
} |
|||
|
|||
|
|||
zapret_apply_firewall() |
|||
{ |
|||
local first_packet_only="-m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:4" |
|||
local desync="-m mark ! --mark $DESYNC_MARK/$DESYNC_MARK" |
|||
local f4 f6 qn qns qn6 qns6 |
|||
|
|||
# always create ipsets. ip_exclude ipset is required |
|||
[ "$1" != "1" ] || create_ipset no-update |
|||
create_ipset no-update |
|||
|
|||
case "${MODE}" in |
|||
tpws) |
|||
@ -632,123 +455,60 @@ zapret_do_firewall() |
|||
filter_apply_port_target f4 |
|||
f6=$f4 |
|||
filter_apply_ipset_target f4 f6 |
|||
fw_tpws $1 "$f4" "$f6" $TPPORT |
|||
fw_tpws "$f4" "$f6" $TPPORT |
|||
fi |
|||
;; |
|||
|
|||
nfqws) |
|||
# quite complex but we need to minimize nfqws processes to save RAM |
|||
if [ ! "$MODE_HTTP" = "1" ] && [ ! "$MODE_HTTPS" = "1" ]; then |
|||
echo both http and https are disabled. not applying redirection. |
|||
else |
|||
get_nfqws_qnums qn qns qn6 qns6 |
|||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn" ] && [ "$qn" = "$qns" ]; then |
|||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn = $qns ]; then |
|||
filter_apply_port_target f4 |
|||
f4="$f4 $first_packet_only" |
|||
filter_apply_ipset_target4 f4 |
|||
fw_nfqws_post4 $1 "$f4 $desync" $qn |
|||
fw_nfqws_post4 "$f4 $desync" $qn |
|||
else |
|||
if [ -n "$qn" ]; then |
|||
if [ "$MODE_HTTP" = "1" ]; then |
|||
f4="--dport 80" |
|||
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f4="$f4 $first_packet_only" |
|||
filter_apply_ipset_target4 f4 |
|||
fw_nfqws_post4 $1 "$f4 $desync" $qn |
|||
fw_nfqws_post4 "$f4 $desync" $qn |
|||
fi |
|||
if [ -n "$qns" ]; then |
|||
if [ "$MODE_HTTPS" = "1" ]; then |
|||
f4="--dport 443 $first_packet_only" |
|||
filter_apply_ipset_target4 f4 |
|||
fw_nfqws_post4 $1 "$f4 $desync" $qns |
|||
fw_nfqws_post4 "$f4 $desync" $qns |
|||
fi |
|||
fi |
|||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ -n "$qn6" ] && [ "$qn6" = "$qns6" ]; then |
|||
if [ "$MODE_HTTP_KEEPALIVE" != "1" ] && [ $qn6 = $qns6 ]; then |
|||
filter_apply_port_target f6 |
|||
f6="$f6 $first_packet_only" |
|||
filter_apply_ipset_target6 f6 |
|||
fw_nfqws_post6 $1 "$f6 $desync" $qn6 |
|||
fw_nfqws_post6 "$f6 $desync" $qn6 |
|||
else |
|||
if [ -n "$qn6" ]; then |
|||
if [ "$MODE_HTTP" = "1" ]; then |
|||
f6="--dport 80" |
|||
[ "$MODE_HTTP_KEEPALIVE" = "1" ] || f6="$f6 $first_packet_only" |
|||
filter_apply_ipset_target6 f6 |
|||
fw_nfqws_post6 $1 "$f6 $desync" $qn6 |
|||
fw_nfqws_post6 "$f6 $desync" $qn6 |
|||
fi |
|||
if [ -n "$qns6" ]; then |
|||
if [ "$MODE_HTTPS" = "1" ]; then |
|||
f6="--dport 443 $first_packet_only" |
|||
filter_apply_ipset_target6 f6 |
|||
fw_nfqws_post6 $1 "$f6 $desync" $qns6 |
|||
fw_nfqws_post6 "$f6 $desync" $qns6 |
|||
fi |
|||
fi |
|||
fi |
|||
;; |
|||
custom) |
|||
existf zapret_custom_firewall && zapret_custom_firewall $1 |
|||
existf zapret_custom_firewall && zapret_custom_firewall |
|||
;; |
|||
esac |
|||
[ "$1" = 0 ] && unprepare_tpws_fw |
|||
|
|||
return 0 |
|||
} |
|||
zapret_apply_firewall() |
|||
{ |
|||
zapret_do_firewall 1 "$@" |
|||
} |
|||
zapret_unapply_firewall() |
|||
{ |
|||
zapret_do_firewall 0 "$@" |
|||
} |
|||
|
|||
zapret_do_daemons() |
|||
{ |
|||
# $1 - 1 - run, 0 - stop |
|||
|
|||
local opt qn qns qn6 qns6 |
|||
|
|||
case "${MODE}" in |
|||
tpws) |
|||
opt="--port=$TPPORT $TPWS_OPT" |
|||
filter_apply_hostlist_target opt |
|||
do_tpws $1 1 "$opt" |
|||
;; |
|||
tpws-socks) |
|||
opt="--port=$TPPORT $TPWS_OPT" |
|||
filter_apply_hostlist_target opt |
|||
do_tpws_socks $1 1 "$opt" |
|||
;; |
|||
nfqws) |
|||
get_nfqws_qnums qn qns qn6 qns6 |
|||
[ -z "$qn" ] || { |
|||
opt="--qnum=$qn $NFQWS_OPT_DESYNC_HTTP" |
|||
filter_apply_hostlist_target opt |
|||
do_nfqws $1 1 "$opt" |
|||
} |
|||
[ -z "$qns" ] || [ "$qns" = "$qn" ] || { |
|||
opt="--qnum=$qns $NFQWS_OPT_DESYNC_HTTPS" |
|||
filter_apply_hostlist_target opt |
|||
do_nfqws $1 2 "$opt" |
|||
} |
|||
[ -z "$qn6" ] || [ "$qn6" = "$qn" ] || [ "$qn6" = "$qns" ] || { |
|||
opt="--qnum=$qn6 $NFQWS_OPT_DESYNC_HTTP6" |
|||
filter_apply_hostlist_target opt |
|||
do_nfqws $1 3 "$opt" |
|||
} |
|||
[ -z "$qns6" ] || [ "$qns6" = "$qn" ] || [ "$qns6" = "$qns" ] || [ "$qns6" = "$qn6" ] || { |
|||
opt="--qnum=$qns6 $NFQWS_OPT_DESYNC_HTTPS6" |
|||
filter_apply_hostlist_target opt |
|||
do_nfqws $1 4 "$opt" |
|||
} |
|||
;; |
|||
custom) |
|||
existf zapret_custom_daemons && zapret_custom_daemons $1 |
|||
;; |
|||
esac |
|||
flow_offloading_exempt |
|||
|
|||
return 0 |
|||
} |
|||
|
|||
zapret_run_daemons() |
|||
{ |
|||
zapret_do_daemons 1 "$@" |
|||
} |
|||
zapret_stop_daemons() |
|||
{ |
|||
zapret_do_daemons 0 "$@" |
|||
} |
|||
|
|||
Loading…
Reference in new issue