mirror of
https://github.com/bol-van/zapret.git
synced 2025-08-10 01:02:03 +03:00
shellcheck linting and formatting shell scripts
This commit is contained in:
conc3rned
@@ -35,75 +35,65 @@ IPSET_EXCLUDE6="-m set ! --match-set nozapret6"
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apply_unspecified_desync_modes
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# can be multiple ipv6 outgoing interfaces
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# uplink from isp, tunnelbroker, vpn, ...
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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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network_find_wan4_all()
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{
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network_find_wan4_all() {
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if [ -n "$OPENWRT_WAN4" ]; then
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eval $1="\$OPENWRT_WAN4"
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eval "$1"="\$OPENWRT_WAN4"
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else
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__network_ifstatus "$1" "" "[@.route[@.target='0.0.0.0' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan $1
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network_find_wan "$1"
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fi
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}
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network_find_wan_all()
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{
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network_find_wan_all() {
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network_find_wan4_all "$@"
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}
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network_find_wan6_all()
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{
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network_find_wan6_all() {
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if [ -n "$OPENWRT_WAN6" ]; then
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eval $1="\$OPENWRT_WAN6"
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eval "$1"="\$OPENWRT_WAN6"
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else
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__network_ifstatus "$1" "" "[@.route[@.target='::' && !@.table]].interface" "" 10 2>/dev/null && return
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network_find_wan6 $1
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network_find_wan6 "$1"
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fi
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}
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network_find_wanX_devices()
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{
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network_find_wanX_devices() {
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# $1 - ip version: 4 or 6
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# $2 - variable to put result to
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local ifaces
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network_find_wan${1}_all ifaces
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call_for_multiple_items network_get_device $2 "$ifaces"
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network_find_wan"${1}"_all ifaces
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call_for_multiple_items network_get_device "$2" "$ifaces"
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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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dnat6_target() {
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# $1 - LAN network name
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# $2 - var to store target ip6
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network_is_up $1 || {
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[ -n "$2" ] && eval $2=''
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network_is_up "$1" || {
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[ -n "$2" ] && eval "$2"=''
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return
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}
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local DEVICE
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network_get_device DEVICE $1
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network_get_device DEVICE "$1"
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_dnat6_target $DEVICE $2
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_dnat6_target "$DEVICE" "$2"
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}
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set_route_localnet()
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{
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set_route_localnet() {
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# $1 - 1 = enable, 0 = disable
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local DLAN
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call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
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_set_route_localnet $1 $DLAN
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_set_route_localnet "$1" "$DLAN"
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}
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fw_nfqws_prepost_x()
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{
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fw_nfqws_prepost_x() {
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# $1 - 1 - add, 0 - del
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# $2 - filter
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# $3 - queue number
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@@ -111,29 +101,24 @@ fw_nfqws_prepost_x()
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# $5 - post/pre
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local ifaces DWAN
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network_find_wan${4}_all ifaces
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network_find_wan"${4}"_all ifaces
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call_for_multiple_items network_get_device DWAN "$ifaces"
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[ -n "$DWAN" ] && _fw_nfqws_${5}${4} $1 "$2" $3 "$(unique $DWAN)"
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[ -n "$DWAN" ] && _fw_nfqws_"${5}"${4} "$1" "$2" "$3" "$(unique "$DWAN")"
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}
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fw_nfqws_post4()
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{
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fw_nfqws_prepost_x $1 "$2" $3 4 post
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fw_nfqws_post4() {
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fw_nfqws_prepost_x "$1" "$2" "$3" 4 post
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}
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fw_nfqws_post6()
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{
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fw_nfqws_prepost_x $1 "$2" $3 6 post
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fw_nfqws_post6() {
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fw_nfqws_prepost_x "$1" "$2" "$3" 6 post
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}
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fw_nfqws_pre4()
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{
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fw_nfqws_prepost_x $1 "$2" $3 4 pre
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fw_nfqws_pre4() {
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fw_nfqws_prepost_x "$1" "$2" "$3" 4 pre
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}
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fw_nfqws_pre6()
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{
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fw_nfqws_prepost_x $1 "$2" $3 6 pre
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fw_nfqws_pre6() {
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fw_nfqws_prepost_x "$1" "$2" "$3" 6 pre
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}
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fw_tpws_x()
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{
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fw_tpws_x() {
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# $1 - 1 - add, 0 - del
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# $2 - filter
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# $3 - tpws port
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@@ -143,102 +128,88 @@ fw_tpws_x()
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call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
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network_find_wan${4}_all ifaces
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network_find_wan"${4}"_all ifaces
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call_for_multiple_items network_get_device DWAN "$ifaces"
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[ -n "$DWAN" ] && _fw_tpws${4} $1 "$2" $3 "$DLAN" "$(unique $DWAN)"
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[ -n "$DWAN" ] && _fw_tpws"${4}" "$1" "$2" "$3" "$DLAN" "$(unique "$DWAN")"
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}
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fw_tpws4()
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{
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fw_tpws_x $1 "$2" $3 4
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fw_tpws4() {
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fw_tpws_x "$1" "$2" "$3" 4
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}
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fw_tpws6()
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{
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fw_tpws_x $1 "$2" $3 6
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fw_tpws6() {
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fw_tpws_x "$1" "$2" "$3" 6
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}
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create_ipset()
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{
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create_ipset() {
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echo "Creating ip list table (firewall type $FWTYPE)"
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"$IPSET_CR" "$@"
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}
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list_nfqws_rules()
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{
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# $1 = '' for ipv4, '6' for ipv6
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ip$1tables -S POSTROUTING -t mangle | \
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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|NFQUEUE --queue-num $(($QNUM+10)) --queue-bypass|NFQUEUE --queue-num $(($QNUM+11)) --queue-bypass" | \
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list_nfqws_rules() {
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# $1 = '' for IPv4, '6' for IPv6
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ip"$1"tables -S POSTROUTING -t mangle |
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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|NFQUEUE --queue-num $(($QNUM + 10)) --queue-bypass|NFQUEUE --queue-num $(($QNUM + 11)) --queue-bypass" |
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sed -re 's/^-A POSTROUTING (.*) -j NFQUEUE.*$/\1/' -e "s/-m mark ! --mark $DESYNC_MARK\/$DESYNC_MARK//"
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}
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apply_flow_offloading_enable_rule()
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{
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# $1 = '' for ipv4, '6' for ipv6
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apply_flow_offloading_enable_rule() {
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# $1 = '' for IPv4, '6' for IPv6
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local i off='-j FLOWOFFLOAD'
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[ "$FLOWOFFLOAD" = "hardware" ] && off="$off --hw"
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i="forwarding_rule_zapret -m comment --comment zapret_traffic_offloading_enable -m conntrack --ctstate RELATED,ESTABLISHED $off"
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echo enabling ipv${1:-4} flow offloading : $i
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ip$1tables -A $i
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echo enabling ipv"${1:-4}" flow offloading : "$i"
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ip"$1"tables -A "$i"
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}
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apply_flow_offloading_exempt_rule()
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{
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# $1 = '' for ipv4, '6' for ipv6
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apply_flow_offloading_exempt_rule() {
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# $1 = '' for IPv4, '6' for IPv6
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local i v
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v=$1
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shift
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i="forwarding_rule_zapret $@ -m comment --comment zapret_traffic_offloading_exemption -j RETURN"
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echo applying ipv${v:-4} flow offloading exemption : $i
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ip${v}tables -A $i
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echo applying ipv"${v:-4}" flow offloading exemption : "$i"
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ip"${v}"tables -A "$i"
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}
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flow_offloading_unexempt_v()
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{
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# $1 = '' for ipv4, '6' for ipv6
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flow_offloading_unexempt_v() {
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# $1 = '' for IPv4, '6' for IPv6
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local DWAN
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network_find_wanX_devices ${1:-4} DWAN
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for i in $DWAN; do ipt$1_del FORWARD -o $i -j forwarding_rule_zapret ; done
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ip$1tables -F forwarding_rule_zapret 2>/dev/null
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ip$1tables -X forwarding_rule_zapret 2>/dev/null
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network_find_wanX_devices "${1:-4}" DWAN
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for i in $DWAN; do ipt"$1"_del FORWARD -o "$i" -j forwarding_rule_zapret; done
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ip"$1"tables -F forwarding_rule_zapret 2>/dev/null
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ip"$1"tables -X forwarding_rule_zapret 2>/dev/null
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}
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flow_offloading_exempt_v()
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{
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# $1 = '' for ipv4, '6' for ipv6
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is_ipt_flow_offload_avail $1 || return 0
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flow_offloading_exempt_v() {
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# $1 = '' for IPv4, '6' for IPv6
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is_ipt_flow_offload_avail "$1" || return 0
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flow_offloading_unexempt_v $1
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flow_offloading_unexempt_v "$1"
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[ "$FLOWOFFLOAD" = 'software' -o "$FLOWOFFLOAD" = 'hardware' ] && {
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ip$1tables -N forwarding_rule_zapret
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ip"$1"tables -N forwarding_rule_zapret
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# remove outgoing interface
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list_nfqws_rules $1 | sed -re 's/-o +[^ ]+//g' |
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while read rule; do
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apply_flow_offloading_exempt_rule "$1" $rule
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done
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apply_flow_offloading_enable_rule $1
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list_nfqws_rules "$1" | sed -re 's/-o +[^ ]+//g' |
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while read rule; do
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apply_flow_offloading_exempt_rule "$1" "$rule"
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done
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apply_flow_offloading_enable_rule "$1"
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# only outgoing to WAN packets trigger flow offloading
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local DWAN
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network_find_wanX_devices ${1:-4} DWAN
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for i in $DWAN; do ipt$1 FORWARD -o $i -j forwarding_rule_zapret; done
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network_find_wanX_devices "${1:-4}" DWAN
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for i in $DWAN; do ipt"$1" FORWARD -o "$i" -j forwarding_rule_zapret; done
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}
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return 0
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}
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flow_offloading_exempt()
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{
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flow_offloading_exempt() {
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[ "$DISABLE_IPV4" = "1" ] || flow_offloading_exempt_v
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[ "$DISABLE_IPV6" = "1" ] || flow_offloading_exempt_v 6
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}
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flow_offloading_unexempt()
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{
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flow_offloading_unexempt() {
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[ "$DISABLE_IPV4" = "1" ] || flow_offloading_unexempt_v
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[ "$DISABLE_IPV6" = "1" ] || flow_offloading_unexempt_v 6
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}
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nft_fill_ifsets_overload()
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{
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nft_fill_ifsets_overload() {
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local ifaces DLAN DWAN DWAN6 PDLAN PDWAN PDWAN6
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call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
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@@ -255,29 +226,23 @@ nft_fill_ifsets_overload()
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nft_fill_ifsets "$DLAN" "$DWAN" "$DWAN6" "$PDLAN" "$PDWAN" "$PDWAN6"
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}
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nft_fw_tpws4()
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{
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_nft_fw_tpws4 "$1" $2 always_apply_wan_filter
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nft_fw_tpws4() {
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_nft_fw_tpws4 "$1" "$2" always_apply_wan_filter
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}
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nft_fw_tpws6()
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{
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nft_fw_tpws6() {
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local DLAN
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call_for_multiple_items network_get_device DLAN "$OPENWRT_LAN"
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_nft_fw_tpws6 "$1" $2 "$DLAN" always_apply_wan_filter
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_nft_fw_tpws6 "$1" "$2" "$DLAN" always_apply_wan_filter
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}
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nft_fw_nfqws_post4()
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{
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_nft_fw_nfqws_post4 "$1" $2 always_apply_wan_filter
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nft_fw_nfqws_post4() {
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_nft_fw_nfqws_post4 "$1" "$2" always_apply_wan_filter
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}
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nft_fw_nfqws_post6()
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{
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_nft_fw_nfqws_post6 "$1" $2 always_apply_wan_filter
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nft_fw_nfqws_post6() {
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_nft_fw_nfqws_post6 "$1" "$2" always_apply_wan_filter
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}
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nft_fw_nfqws_pre4()
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{
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_nft_fw_nfqws_pre4 "$1" $2 always_apply_wan_filter
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nft_fw_nfqws_pre4() {
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_nft_fw_nfqws_pre4 "$1" "$2" always_apply_wan_filter
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}
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nft_fw_nfqws_pre6()
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{
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_nft_fw_nfqws_pre6 "$1" $2 always_apply_wan_filter
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nft_fw_nfqws_pre6() {
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_nft_fw_nfqws_pre6 "$1" "$2" always_apply_wan_filter
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}
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