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Add DSCP support
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Ycarus
parent
39e5211172
commit
b8adf51e1d
7 changed files with 327 additions and 1 deletions
164
luci-app-omr-dscp/root/etc/init.d/omr-dscp
Executable file
164
luci-app-omr-dscp/root/etc/init.d/omr-dscp
Executable file
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#!/bin/sh /etc/rc.common
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# vim: set noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 :
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# shellcheck disable=SC2034
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START=90
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# shellcheck disable=SC2034
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STOP=10
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# shellcheck disable=SC2034
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USE_PROCD=1
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# shellcheck disable=SC1091
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. /lib/functions.sh
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# Get the lan interface name
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lan_device=
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config_load network
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config_get lan_device lan ifname
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config_load dscp
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_ipt() {
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iptables -w -t mangle "$@"
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}
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_add_dscp_rule() {
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_ipt -A dscp_prerouting -p "$proto" -s "$src_ip" -d "$dest_ip" "$@" -m comment --comment "$comment" -j DSCP --set-dscp-class "$class"
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_ipt -A dscp_prerouting -p "$proto" -s "$src_ip" -d "$dest_ip" "$@" -m comment --comment "$comment" -j RETURN
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_ipt -A dscp_postrouting -p "$proto" -s "$src_ip" -d "$dest_ip" "$@" -m comment --comment "$comment" -j DSCP --set-dscp-class "$class"
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_ipt -A dscp_postrouting -p "$proto" -s "$src_ip" -d "$dest_ip" "$@" -m comment --comment "$comment" -j RETURN
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}
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_add_dscp_domain() {
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domain=""; config_get domain "$1" name ""
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class=""; config_get class "$1" class ""
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[ -n "$domain" ] && uci -q add_list dhcp.@dnsmasq[0].ipset="/$domain/omr-$class"
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}
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_add_dscp_domains_rules() {
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for $class in cs0 cs1 cs2 cs3 cs4 cs5 cs6 cs7 ef; do
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_ipt -A dscp_prerouting -m set --match-set omr-$class src,dst -m comment --comment "$class" -j DSCP --set-dscp-class "$class"
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_ipt -A dscp_prerouting -m set --match-set omr-$class src,dst -m comment --comment "$class" -j RETURN
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_ipt -A dscp_postrouting -m set --match-set omr-$class src,dst -m comment --comment "$class" -j DSCP --set-dscp-class "$class"
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_ipt -A dscp_postrouting -m set --match-set omr-$class src,dst -m comment --comment "$class" -j RETURN
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done
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}
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_add_dscp_rules() {
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proto="" ; config_get proto "$1" proto all
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src_ip="" ; config_get src_ip "$1" src_ip 0.0.0.0/0
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src_port="" ; config_get src_port "$1" src_port 0:65535
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dest_ip="" ; config_get dest_ip "$1" dest_ip 0.0.0.0/0
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dest_port="" ; config_get dest_port "$1" dest_port 0:65535
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class="" ; config_get class "$1" class
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direction="" ; config_get direction "$1" direction "upload"
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comment="" ; config_get comment "$1" comment "-"
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case "$direction" in
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upload|both)
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# Apply the rule locally
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case "$proto" in
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tcp|udp)
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_add_dscp_rule -m multiport --sports "$src_port" -m multiport --dports "$dest_port"
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;;
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*)
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_add_dscp_rule
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;;
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esac
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;;
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download|both)
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;;
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esac
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}
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_add_prerouting_chain() {
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_ipt -N "$1"
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_ipt -I PREROUTING -i "$lan_device" -j "$1"
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}
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_add_postrouting_chain() {
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_ipt -N "$1"
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_ipt -I POSTROUTING -i "$lan_device" -j "$1"
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}
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_add_fwmark_chain() {
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_ipt -N dscp_mark
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_ipt -A PREROUTING -i "$lan_device" -j dscp_mark
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_ipt -A POSTROUTING -i "$lan_device" -j dscp_mark
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for class in cs4 cs5 cs6 cs7; do
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# xtun (hex) -> 0x7874756e
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_ipt -A dscp_mark \
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-m comment --comment "$class" \
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-m dscp --dscp-class "$class" \
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-j MARK --set-mark 0x7874756e
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done
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}
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_add_dscp_output_chain() {
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_ipt -N dscp_output
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_ipt -I OUTPUT -j dscp_output
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}
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_remove_prerouting_chain() {
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_ipt -F "$1" 2>/dev/null || return
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_ipt -D PREROUTING -i "$lan_device" -j "$1"
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_ipt -X "$1"
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}
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_remove_postrouting_chain() {
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_ipt -F "$1" 2>/dev/null || return
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_ipt -D POSTROUTING -i "$lan_device" -j "$1"
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_ipt -X "$1"
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}
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_remove_output_chain() {
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_ipt -F "$1" 2>/dev/null || return
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_ipt -D OUTPUT -j "$1"
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_ipt -X "$1"
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}
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_setup_tunnel() {
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# Mark the packets to route through xtun0
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_add_fwmark_chain
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# tun0: cs0 (default)
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# xtun0: cs6
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_ipt -A dscp_output -o "tun0" -j DSCP --set-dscp-class cs6
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}
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_cleanup() {
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_remove_prerouting_chain dscp_prerouting
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_remove_prerouting_chain dscp_mark
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_remove_postouting_chain dscp_postrouting
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_remove_postrouting_chain dscp_mark
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_remove_output_chain dscp_output
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}
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start_service() {
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# Cleanup
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_cleanup
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# Add chains
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_add_prerouting_chain dscp_prerouting
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_add_postrouting_chain dscp_postrouting
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_add_dscp_output_chain
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_add_dscp_domains_rules
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# Setup the tunnels dscp / marks
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_setup_tunnel
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# Add rules base on the user configuration
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config_foreach _add_dscp_rules classify
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config_foreach _add_dscp_domain domains
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}
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stop_service() {
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_cleanup
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}
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reload_service() {
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start
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}
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service_triggers() {
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procd_add_reload_trigger dscp glorytun
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}
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24
luci-app-omr-dscp/root/etc/uci-defaults/dscp
Executable file
24
luci-app-omr-dscp/root/etc/uci-defaults/dscp
Executable file
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@ -0,0 +1,24 @@
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#!/bin/sh
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if [ "$(uci -q get dscp)" = "" ]; then
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uci -q batch <<-EOF
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add dscp classify
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set dscp.@classify[0].direction='both'
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set dscp.@classify[0].proto='icmp'
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set dscp.@classify[0].class='cs5'
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set dscp.@classify[0].comment='ICMP'
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set dscp.@classify[1].direction='both'
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set dscp.@classify[1].proto='udp'
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set dscp.@classify[1].class='cs5'
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set dscp.@classify[1].src_port='53,123,5353'
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set dscp.@classify[1].comment='DNS udp and NTP'
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set dscp.@classify[2].direction='both'
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set dscp.@classify[2].proto='tcp'
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set dscp.@classify[2].class='cs5'
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set dscp.@classify[2].src_port='53,5353'
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set dscp.@classify[2].comment='DNS tcp'
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commit dscp
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EOF
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fi
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exit 0
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