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Chore: use "-m mark --mark" instead of "-m owner --uid-owner"

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This commit is contained in:
yaling888 2022-02-23 14:19:59 +08:00
parent 592b6a785e
commit cd3b139c3f
3 changed files with 12 additions and 17 deletions
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7
README.md
View file

@ -153,9 +153,7 @@ tproxy-port: 9898
tun:
enable: false
```
Create user given name `clash`.
Run Clash by user `clash` as a daemon.
Run Clash as a daemon.
Create the systemd configuration file at /etc/systemd/system/clash.service:
```shell
@ -165,10 +163,7 @@ After=network.target
[Service]
Type=simple
User=clash
Group=clash
CapabilityBoundingSet=cap_net_admin
AmbientCapabilities=cap_net_admin
Restart=always
ExecStart=/usr/local/bin/clash -d /etc/clash

4
hub/executor/executor.go
View file

@ -280,6 +280,10 @@ func updateIPTables(dns *config.DNS, general *config.General) {
tproxy.CleanUpTProxyLinuxIPTables()
if dialer.DefaultRoutingMark.Load() == 0 {
dialer.DefaultRoutingMark.Store(2158)
}
err = tproxy.SetTProxyLinuxIPTables(general.Interface, general.TProxyPort, dnsPort)
if err != nil {

18
listener/tproxy/tproxy_linux_iptables.go
View file

@ -4,10 +4,10 @@ import (
"errors"
"fmt"
"os/exec"
U "os/user"
"runtime"
"strings"
"github.com/Dreamacro/clash/component/dialer"
"github.com/Dreamacro/clash/log"
)
@ -20,7 +20,6 @@ var (
const (
PROXY_FWMARK = "0x2d0"
PROXY_ROUTE_TABLE = "0x2d0"
USERNAME = "clash"
)
func SetTProxyLinuxIPTables(ifname string, tport int, dport int) error {
@ -29,17 +28,10 @@ func SetTProxyLinuxIPTables(ifname string, tport int, dport int) error {
return fmt.Errorf("current operations system [%s] are not support iptables or command iptables does not exist", runtime.GOOS)
}
user, err := U.Lookup(USERNAME)
if err != nil {
return fmt.Errorf("the user \" %s\" does not exist, please create it", USERNAME)
}
if ifname == "" {
return errors.New("the 'interface-name' can not be empty")
}
ownerUid := user.Uid
interfaceName = ifname
tproxyPort = tport
dnsPort = dport
@ -84,7 +76,7 @@ func SetTProxyLinuxIPTables(ifname string, tport int, dport int) error {
// set output
execCmd("iptables -t mangle -N clash_output")
execCmd("iptables -t mangle -F clash_output")
execCmd(fmt.Sprintf("iptables -t mangle -A clash_output -m owner --uid-owner %s -j RETURN", ownerUid))
execCmd(fmt.Sprintf("iptables -t mangle -A clash_output -m mark --mark %#x -j RETURN", dialer.DefaultRoutingMark.Load()))
execCmd("iptables -t mangle -A clash_output -p udp -m multiport --dports 53,123,137 -j ACCEPT")
execCmd("iptables -t mangle -A clash_output -p tcp --dport 53 -j ACCEPT")
execCmd("iptables -t mangle -A clash_output -m addrtype --dst-type LOCAL -j RETURN")
@ -97,7 +89,7 @@ func SetTProxyLinuxIPTables(ifname string, tport int, dport int) error {
// set dns output
execCmd("iptables -t nat -N clash_dns_output")
execCmd("iptables -t nat -F clash_dns_output")
execCmd(fmt.Sprintf("iptables -t nat -A clash_dns_output -m owner --uid-owner %s -j RETURN", ownerUid))
execCmd(fmt.Sprintf("iptables -t nat -A clash_dns_output -m mark --mark %#x -j RETURN", dialer.DefaultRoutingMark.Load()))
execCmd("iptables -t nat -A clash_dns_output -s 172.17.0.0/16 -j RETURN")
execCmd(fmt.Sprintf("iptables -t nat -A clash_dns_output -p udp -j REDIRECT --to-ports %d", dnsPort))
execCmd(fmt.Sprintf("iptables -t nat -A clash_dns_output -p tcp -j REDIRECT --to-ports %d", dnsPort))
@ -115,6 +107,10 @@ func CleanUpTProxyLinuxIPTables() {
log.Warnln("Clean up tproxy linux iptables")
if int(dialer.DefaultRoutingMark.Load()) == 2158 {
dialer.DefaultRoutingMark.Store(0)
}
if _, err := execCmd("iptables -t mangle -L clash_divert"); err != nil {
return
}