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shadowsocks-libev: rewrite

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- Selecting only a single or subset of all components of shadowsocks-libev is
  now possible (this is the main motivation behind the rewrite)
- Configuring multiple instances of the same component is now also possible
- Same option names as with the json config
- Unified configuration generation method for each component
- Add support for ss-local, ss-tunnel, ss-server
- Most data validation is now done with validate_data
- USE_PROCD=1
- Update ss-rules with the one from shadowsocks/luci-app-shadowsocks
- Add README.md
- Set myself as the maintainer

Addresses #4435

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
This commit is contained in:
Yousong Zhou
2017-06-24 08:56:18 +08:00
parent 1aca235d44
commit b61af9703e
9 changed files with 876 additions and 346 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/shadowsocks-libev/files/ss-rules
+185 -144
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@@ -1,4 +1,10 @@
#!/bin/sh
#
# Copyright (C) 2014-2017 Jian Chang <aa65535@live.com>
#
# This is free software, licensed under the GNU General Public License v3.
# See /LICENSE for more information.
#
usage() {
cat <<-EOF
@@ -6,20 +12,28 @@ usage() {
Valid options are:
-s <server_host> hostname or ip of shadowsocks remote server
-s <server_ips> ip address of shadowsocks remote server
-l <local_port> port number of shadowsocks local server
-i <ip_list_file> a file content is bypassed ip list
-a <lan_ips> lan ip of access control, need a prefix to
define access control mode
-S <server_ips> ip address of shadowsocks remote UDP server
-L <local_port> port number of shadowsocks local UDP server
-B <ip_list_file> a file whose content is bypassed ip list
-b <wan_ips> wan ip of will be bypassed
-W <ip_list_file> a file whose content is forwarded ip list
-w <wan_ips> wan ip of will be forwarded
-e <extra_options> extra options for iptables
-I <interface> proxy only for the given interface
-d <target> the default target of lan access control
-a <lan_hosts> lan ip of access control, need a prefix to
define proxy type
-e <extra_args> extra arguments for iptables
-o apply the rules to the OUTPUT chain
-O apply the global rules to the OUTPUT chain
-u enable udprelay mode, TPROXY is required
-U enable udprelay mode, using different IP
and ports for TCP and UDP
-f flush the rules
-h show this help message and exit
EOF
exit $1
}
loger() {
@@ -27,135 +41,192 @@ loger() {
logger -st ss-rules[$$] -p$1 $2
}
ipt_n="iptables -t nat"
ipt_m="iptables -t mangle"
flush_r() {
local IPT
IPT=$(iptables-save -t nat)
eval $(echo "$IPT" | grep "_SS_SPEC_RULE_" | \
sed -e 's/^-A/$ipt_n -D/' -e 's/$/;/')
for chain in $(echo "$IPT" | awk '/^:SS_SPEC/{print $1}'); do
$ipt_n -F ${chain:1} 2>/dev/null && $ipt_n -X ${chain:1}
flush_rules() {
iptables-save -c | grep -v "SS_SPEC" | iptables-restore -c
if command -v ip >/dev/null 2>&1; then
ip rule del fwmark 1 lookup 100 2>/dev/null
ip route del local default dev lo table 100 2>/dev/null
fi
for setname in $(ipset -n list | grep "ss_spec"); do
ipset destroy $setname 2>/dev/null
done
IPT=$(iptables-save -t mangle)
eval $(echo "$IPT" | grep "_SS_SPEC_RULE_" | \
sed -e 's/^-A/$ipt_m -D/' -e 's/$/;/')
for chain in $(echo "$IPT" | awk '/^:SS_SPEC/{print $1}'); do
$ipt_m -F ${chain:1} 2>/dev/null && $ipt_m -X ${chain:1}
done
ip rule del fwmark 0x01/0x01 table 100 2>/dev/null
ip route del local 0.0.0.0/0 dev lo table 100 2>/dev/null
ipset -X ss_spec_lan_ac 2>/dev/null
ipset -X ss_spec_wan_ac 2>/dev/null
FWI=$(uci get firewall.shadowsocks.path 2>/dev/null)
[ -n "$FWI" ] && echo '# firewall include file' >$FWI
return 0
}
ipset_r() {
ipset -! -R <<-EOF || return 1
create ss_spec_wan_ac hash:net
$(echo -e "$IPLIST" | sed -e "s/^/add ss_spec_wan_ac /")
$(for ip in $WAN_FW_IP; do echo "add ss_spec_wan_ac $ip nomatch"; done)
ipset_init() {
ipset -! restore <<-EOF || return 1
create ss_spec_src_ac hash:ip hashsize 64
create ss_spec_src_bp hash:ip hashsize 64
create ss_spec_src_fw hash:ip hashsize 64
create ss_spec_dst_sp hash:net hashsize 64
create ss_spec_dst_bp hash:net hashsize 64
create ss_spec_dst_fw hash:net hashsize 64
$(gen_lan_host_ipset_entry)
$(gen_special_purpose_ip | sed -e "s/^/add ss_spec_dst_sp /")
$(sed -e "s/^/add ss_spec_dst_bp /" ${WAN_BP_LIST:=/dev/null} 2>/dev/null)
$(for ip in $WAN_BP_IP; do echo "add ss_spec_dst_bp $ip"; done)
$(sed -e "s/^/add ss_spec_dst_fw /" ${WAN_FW_LIST:=/dev/null} 2>/dev/null)
$(for ip in $WAN_FW_IP; do echo "add ss_spec_dst_fw $ip"; done)
EOF
$ipt_n -N SS_SPEC_WAN_AC && \
$ipt_n -A SS_SPEC_WAN_AC -m set --match-set ss_spec_wan_ac dst -j RETURN && \
$ipt_n -A SS_SPEC_WAN_AC -j SS_SPEC_WAN_FW
return $?
return 0
}
fw_rule() {
$ipt_n -N SS_SPEC_WAN_FW && \
$ipt_n -A SS_SPEC_WAN_FW -p tcp \
-j REDIRECT --to-ports $local_port 2>/dev/null || {
loger 3 "Can't redirect, please check the iptables."
exit 1
}
return $?
}
ac_rule() {
local TAG ROUTECHAIN
if [ -n "$LAN_AC_IP" ]; then
if [ "${LAN_AC_IP:0:1}" = "w" ]; then
TAG="nomatch"
else
if [ "${LAN_AC_IP:0:1}" != "b" ]; then
loger 3 "Bad argument \`-a $LAN_AC_IP\`."
return 2
fi
fi
fi
ROUTECHAIN=PREROUTING
if iptables-save -t nat | grep -q "^:zone_lan_prerouting"; then
ROUTECHAIN=zone_lan_prerouting
fi
ipset -! -R <<-EOF || return 1
create ss_spec_lan_ac hash:net
$(for ip in ${LAN_AC_IP:1}; do echo "add ss_spec_lan_ac $ip $TAG"; done)
EOF
$ipt_n -A $ROUTECHAIN -p tcp $EXT_ARGS \
-m set ! --match-set ss_spec_lan_ac src \
-m comment --comment "_SS_SPEC_RULE_" -j SS_SPEC_WAN_AC
if [ "$OUTPUT" = 1 ]; then
$ipt_n -A OUTPUT -p tcp $EXT_ARGS \
-m comment --comment "_SS_SPEC_RULE_" -j SS_SPEC_WAN_AC
ipt_nat() {
include_ac_rules nat
ipt="iptables -t nat"
$ipt -A SS_SPEC_WAN_FW -p tcp \
-j REDIRECT --to-ports $local_port || return 1
if [ -n "$OUTPUT" ]; then
$ipt -N SS_SPEC_WAN_DG
$ipt -A SS_SPEC_WAN_DG -m set --match-set ss_spec_dst_sp dst -j RETURN
$ipt -A SS_SPEC_WAN_DG -p tcp $EXT_ARGS -j $OUTPUT
$ipt -I OUTPUT 1 -p tcp -j SS_SPEC_WAN_DG
fi
return $?
}
tp_rule() {
ipt_mangle() {
[ -n "$TPROXY" ] || return 0
ip rule add fwmark 0x01/0x01 table 100
ip route add local 0.0.0.0/0 dev lo table 100
$ipt_m -N SS_SPEC_TPROXY
$ipt_m -A SS_SPEC_TPROXY -p udp -m set ! --match-set ss_spec_wan_ac dst \
if !(lsmod | grep -q TPROXY && command -v ip >/dev/null); then
loger 4 "TPROXY or ip not found."
return 0
fi
ip rule add fwmark 1 lookup 100
ip route add local default dev lo table 100
include_ac_rules mangle
iptables -t mangle -A SS_SPEC_WAN_FW -p udp \
-j TPROXY --on-port $LOCAL_PORT --tproxy-mark 0x01/0x01
$ipt_m -A PREROUTING -p udp $EXT_ARGS \
-m set ! --match-set ss_spec_lan_ac src \
-m comment --comment "_SS_SPEC_RULE_" -j SS_SPEC_TPROXY
return $?
}
while getopts ":s:l:S:L:i:e:a:b:w:ouUf" arg; do
case $arg in
export_ipt_rules() {
[ -n "$FWI" ] || return 0
cat <<-CAT >>$FWI
iptables-save -c | grep -v "SS_SPEC" | iptables-restore -c
iptables-restore -n <<-EOF
$(iptables-save | grep -E "SS_SPEC|^\*|^COMMIT" |\
sed -e "s/^-A \(OUTPUT\|PREROUTING\)/-I \1 1/")
EOF
CAT
return $?
}
gen_lan_host_ipset_entry() {
for host in $LAN_HOSTS; do
case "${host:0:1}" in
n|N)
echo add ss_spec_src_ac ${host:2}
;;
b|B)
echo add ss_spec_src_bp ${host:2}
;;
g|G)
echo add ss_spec_src_fw ${host:2}
;;
esac
done
}
gen_special_purpose_ip() {
cat <<-EOF | grep -E "^([0-9]{1,3}\.){3}[0-9]{1,3}"
0.0.0.0/8
10.0.0.0/8
100.64.0.0/10
127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.0.0.0/24
192.0.2.0/24
192.31.196.0/24
192.52.193.0/24
192.88.99.0/24
192.168.0.0/16
192.175.48.0/24
198.18.0.0/15
198.51.100.0/24
203.0.113.0/24
224.0.0.0/4
240.0.0.0/4
255.255.255.255
$server
$SERVER
EOF
}
include_ac_rules() {
local protocol=$([ "$1" = "mangle" ] && echo udp || echo tcp)
iptables-restore -n <<-EOF
*$1
:SS_SPEC_LAN_DG - [0:0]
:SS_SPEC_LAN_AC - [0:0]
:SS_SPEC_WAN_AC - [0:0]
:SS_SPEC_WAN_FW - [0:0]
-A SS_SPEC_LAN_DG -m set --match-set ss_spec_dst_sp dst -j RETURN
-A SS_SPEC_LAN_DG -p $protocol $EXT_ARGS -j SS_SPEC_LAN_AC
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_bp src -j RETURN
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_fw src -j SS_SPEC_WAN_FW
-A SS_SPEC_LAN_AC -m set --match-set ss_spec_src_ac src -j SS_SPEC_WAN_AC
-A SS_SPEC_LAN_AC -j ${LAN_TARGET:=SS_SPEC_WAN_AC}
-A SS_SPEC_WAN_AC -m set --match-set ss_spec_dst_fw dst -j SS_SPEC_WAN_FW
-A SS_SPEC_WAN_AC -m set --match-set ss_spec_dst_bp dst -j RETURN
-A SS_SPEC_WAN_AC -j SS_SPEC_WAN_FW
$(gen_prerouting_rules $protocol)
COMMIT
EOF
}
gen_prerouting_rules() {
[ -z "$IFNAMES" ] && echo -I PREROUTING 1 -p $1 -j SS_SPEC_LAN_DG
for ifname in $IFNAMES; do
echo -I PREROUTING 1 -i $ifname -p $1 -j SS_SPEC_LAN_DG
done
}
while getopts ":s:l:S:L:B:b:W:w:I:d:a:e:oOuUfh" arg; do
case "$arg" in
s)
server=$OPTARG
server=$(for ip in $OPTARG; do echo $ip; done)
;;
l)
local_port=$OPTARG
;;
S)
SERVER=$OPTARG
SERVER=$(for ip in $OPTARG; do echo $ip; done)
;;
L)
LOCAL_PORT=$OPTARG
;;
i)
IGNORE=$OPTARG
;;
e)
EXT_ARGS=$OPTARG
;;
a)
LAN_AC_IP=$OPTARG
B)
WAN_BP_LIST=$OPTARG
;;
b)
WAN_BP_IP=$(for ip in $OPTARG; do echo $ip; done)
WAN_BP_IP=$OPTARG
;;
W)
WAN_FW_LIST=$OPTARG
;;
w)
WAN_FW_IP=$OPTARG
;;
I)
IFNAMES=$OPTARG
;;
d)
LAN_TARGET=$OPTARG
;;
a)
LAN_HOSTS=$OPTARG
;;
e)
EXT_ARGS=$OPTARG
;;
o)
OUTPUT=1
OUTPUT=SS_SPEC_WAN_AC
;;
O)
OUTPUT=SS_SPEC_WAN_FW
;;
u)
TPROXY=1
@@ -164,56 +235,26 @@ while getopts ":s:l:S:L:i:e:a:b:w:ouUf" arg; do
TPROXY=2
;;
f)
flush_r
flush_rules
exit 0
;;
h)
usage 0
;;
esac
done
if [ -z "$server" -o -z "$local_port" ]; then
usage
exit 2
fi
[ -z "$server" -o -z "$local_port" ] && usage 2
if [ "$TPROXY" = 1 ]; then
SERVER=$server
unset SERVER
LOCAL_PORT=$local_port
elif [ "$TPROXY" = 2 ]; then
: ${SERVER:?"You must assign an ip for the udp relay server."}
: ${LOCAL_PORT:?"You must assign a port for the udp relay server."}
fi
if [ "$TPROXY" = 2 ]; then
if [ -z "$SERVER" -o -z "$LOCAL_PORT" ]; then
loger 3 "Please use -S and -L specifies IP and port for UDP."
fi
fi
if [ -f "$IGNORE" ]; then
IGNORE_IP=$(cat $IGNORE 2>/dev/null)
fi
IPLIST=$(cat <<-EOF | grep -E "^([0-9]{1,3}\.){3}[0-9]{1,3}"
$server
$SERVER
0.0.0.0/8
10.0.0.0/8
100.64.0.0/10
127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.0.0.0/24
192.0.2.0/24
192.88.99.0/24
192.168.0.0/16
198.18.0.0/15
198.51.100.0/24
203.0.113.0/24
224.0.0.0/4
240.0.0.0/4
255.255.255.255
$WAN_BP_IP
$IGNORE_IP
EOF
)
flush_r && fw_rule && ipset_r && ac_rule && tp_rule
exit $?
flush_rules && ipset_init && ipt_nat && ipt_mangle && export_ipt_rules
RET=$?
[ "$RET" = 0 ] || loger 3 "Start failed!"
exit $RET