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feat: support redirect

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This commit is contained in:
ICKelin
2023-10-13 20:48:55 +08:00
parent 13f793bc98
commit d5d965fc60
15 changed files with 96 additions and 158 deletions
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6
after_script.sh
View File

@@ -1,6 +0,0 @@
iptables -t mangle -D PREROUTING -p tcp -m set --match-set GTUN-US dst -j TPROXY --tproxy-mark 1/1 --on-port 8524
iptables -t mangle -D PREROUTING -p udp -m set --match-set GTUN-US dst -j TPROXY --tproxy-mark 1/1 --on-port 8524
iptables -t mangle -D OUTPUT -m set --match-set GTUN-US dst -j MARK --set-mark 1
ip rule del fwmark 1 lookup 100
ip ro del local default dev lo table 100
ipset destroy GTUN-US

6
before_script.sh
View File

@@ -1,6 +0,0 @@
ipset create GTUN-US hash:net
iptables -t mangle -I PREROUTING -p tcp -m set --match-set GTUN-US dst -j TPROXY --tproxy-mark 1/1 --on-port 8524
iptables -t mangle -I PREROUTING -p udp -m set --match-set GTUN-US dst -j TPROXY --tproxy-mark 1/1 --on-port 8524
iptables -t mangle -I OUTPUT -m set --match-set GTUN-US dst -j MARK --set-mark 1
ip rule add fwmark 1 lookup 100
ip ro add local default dev lo table 100

5
build_exec.sh → build.sh
View File

@@ -9,5 +9,6 @@ GOOS=linux go build -o bin/gtun/gtun-linux_amd64 cmd/gtun/*.go
GOARCH=arm GOOS=linux go build -o bin/gtun/gtun-linux_arm cmd/gtun/*.go
echo "builded gtun...."
cp before_script.sh bin/
cp after_script.sh bin/
cp -r etc/gtun.yaml bin/gtun/
cp -r etc/gtund.yaml bin/gtund/
cp install.sh bin/gtun/

15
build_image.sh
View File

@@ -1,15 +0,0 @@
WORKSPACE=`pwd`
./build_exec.sh
echo "building gtund docker image"
cd docker-build/gtund
cp $WORKSPACE/bin/gtund/gtund .
docker build . -t gtund
echo "builded gtund docker image"
echo "building gtun docker image"
cd $WORKSPACE/docker-build/gtun
cp $WORKSPACE/bin/gtun/gtun-linux_amd64 .
docker build . -t gtun
echo "builded gtun docker image"

6
docker-build/gtun/Dockerfile
View File

@@ -1,6 +0,0 @@
FROM ubuntu:20.04
COPY gtun-linux_amd64 /gtun
COPY start.sh /
RUN chmod +x start.sh && chmod +x gtun
RUN mkdir /opt/logs
CMD /start.sh

49
docker-build/gtun/docker-compose.yaml
View File

@@ -1,49 +0,0 @@
version: '3'
services:
gtun:
build: .
container_name: gtun
restart: always
network_mode: host
privileged: true
volumes:
- /opt/apps/logs:/opt/logs
environment:
TIME_ZONE: Asia/Shanghai
settings: |
settings:
CN:
route:
- trace_addr: ""
scheme: "kcp"
addr: ""
auth_key: ""
proxy:
"tproxy_tcp": |
{
"read_timeout": 30,
"write_timeout": 30,
"listen_addr": ":8524",
"rate_limit": 50,
"region": "CN"
}
"tproxy_udp": |
{
"read_timeout": 30,
"write_timeout": 30,
"session_timeout": 30,
"listen_addr": ":8524",
"rate_limit": 50,
"region": "CN"
}
"tun_proxy": |
{
"mtu": 1400,
"region": "CN",
"read_timeout": 10,
"write_timeout": 10
}
log:
days: 5
level: Debug
path: gtun.log

11
docker-build/gtun/start.sh
View File

@@ -1,11 +0,0 @@
#!/usr/bin/env bash
if [ "$TIME_ZONE" != "" ]; then
ln -snf /usr/share/zoneinfo/$TIME_ZONE /etc/localtime && echo $TIME_ZONE > /etc/timezone
fi
#项目的配置文件
if [ "$settings" != "" ]; then
echo "$settings" > /gtun.yaml
fi
/gtun -c /gtun.yaml

6
docker-build/gtund/Dockerfile
View File

@@ -1,6 +0,0 @@
FROM ubuntu:18.04
COPY gtund /
COPY start.sh /
RUN chmod +x start.sh && chmod +x gtund
RUN mkdir /opt/logs
CMD /start.sh

22
docker-build/gtund/docker-compose.yaml
View File

@@ -1,22 +0,0 @@
version: '3'
services:
gtund:
build: .
container_name: gtund
restart: always
network_mode: host
volumes:
- /opt/apps/logs:/logs
environment:
TIME_ZONE: Asia/Shanghai
settings: |
server:
- listen: ":3002"
authKey: "rewrite with your auth key"
scheme: "kcp"
trace: ":3003"
log:
days: 5
level: "debug"
path: "gtund.log"

11
docker-build/gtund/start.sh
View File

@@ -1,11 +0,0 @@
#!/usr/bin/env bash
if [ "$TIME_ZONE" != "" ]; then
ln -snf /usr/share/zoneinfo/$TIME_ZONE /etc/localtime && echo $TIME_ZONE > /etc/timezone
fi
#项目的配置文件
if [ "$settings" != "" ]; then
echo "$settings" > /gtund.yaml
fi
/gtund -c /gtund.yaml

12
etc/gtun.yaml
View File

@@ -1,9 +1,10 @@
settings:
CN:
proxy_file: "https://www.ipdeny.com/ipblocks/data/countries/us.zone"
route:
- trace_addr: ""
- trace_addr: ${CN_SERVER_IP}:${CN_SERVER_TRACE_PORT}
scheme: "kcp"
addr: ""
addr: ${CN_SERVER_IP}:${CN_SERVER_PORT}
auth_key: ""
proxy:
"tproxy_tcp": |
@@ -23,13 +24,6 @@ settings:
"rate_limit": 50,
"region": "CN"
}
"tun_proxy": |
{
"mtu": 1400,
"region": "CN",
"read_timeout": 10,
"write_timeout": 10
}
log:
days: 5
level: Debug

29
gtun/proxy/cmd.go → gtun/proxy/redirect.go
View File

@@ -29,27 +29,52 @@ func initRedirect(proto, region, redirectPort string) {
logs.Warn("create ipset fail: %v %s", err, out)
}
out, err = utils.ExecCmd("ipset", []string{"-F", setName})
if err != nil {
logs.Warn("flush ipset fail: %v %s", err, out)
}
markID := allocateMarkID()
routeTable := allocateRouteTableID()
args := fmt.Sprintf("-t mangle -I PREROUTING -p %s -m set --match-set %s dst -j TPROXY --tproxy-mark %d/%d --on-port %s", proto, setName, markID, markID, redirectPort)
args := fmt.Sprintf("-t mangle -D PREROUTING -p %s -m set --match-set %s dst -j TPROXY --tproxy-mark %d/%d --on-port %s", proto, setName, markID, markID, redirectPort)
out, err = utils.ExecCmd("iptables", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("-t mangle -A PREROUTING -p %s -m set --match-set %s dst -j TPROXY --tproxy-mark %d/%d --on-port %s", proto, setName, markID, markID, redirectPort)
out, err = utils.ExecCmd("iptables", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("-t mangle -I OUTPUT -p %s -m set --match-set %s dst -j MARK --set-mark %d", proto, setName, markID)
args = fmt.Sprintf("-t mangle -D OUTPUT -p %s -m set --match-set %s dst -j MARK --set-mark %d", proto, setName, markID)
out, err = utils.ExecCmd("iptables", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("-t mangle -A OUTPUT -p %s -m set --match-set %s dst -j MARK --set-mark %d", proto, setName, markID)
out, err = utils.ExecCmd("iptables", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("rule del fwmark %d lookup %d", markID, routeTable)
out, err = utils.ExecCmd("ip", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("rule add fwmark %d lookup %d", markID, routeTable)
out, err = utils.ExecCmd("ip", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("ro del local default dev lo table %d", routeTable)
out, err = utils.ExecCmd("ip", strings.Split(args, " "))
if err != nil {
logs.Warn("%s %s %s", args, err, out)
}
args = fmt.Sprintf("ro add local default dev lo table %d", routeTable)
out, err = utils.ExecCmd("ip", strings.Split(args, " "))
if err != nil {

52
gtun/proxy/types.go
View File

@@ -6,7 +6,10 @@ import (
"fmt"
"github.com/ICKelin/gtun/internal/logs"
"github.com/ICKelin/gtun/internal/utils"
"net/http"
"os"
"strings"
"time"
)
var errRegistered = fmt.Errorf("already registered")
@@ -70,27 +73,58 @@ func AddApp(region, appName string) error {
}
func AddFromFile(region, file string) {
if len(file) <= 0 {
return
ips := loadIPs(file)
for _, ip := range ips {
AddIP(region, ip)
}
}
func loadIPs(file string) []string {
if len(file) <= 0 {
return nil
}
ips := make([]string, 0)
var br *bufio.Reader
if strings.HasPrefix(file, "http://") || strings.HasPrefix(file, "https://") {
// load from url
req, err := http.NewRequest("GET", file, nil)
if err != nil {
logs.Warn("load file fail: %v", err)
return nil
}
cli := http.Client{
Timeout: time.Second * 120,
}
resp, err := cli.Do(req)
if err != nil {
logs.Warn("load file fail: %v", err)
return nil
}
defer resp.Body.Close()
br = bufio.NewReader(resp.Body)
} else {
// load from file
fp, err := os.Open(file)
if err != nil {
logs.Warn("open rule file fail: %v", err)
return
return nil
}
defer fp.Close()
br = bufio.NewReader(fp)
}
br := bufio.NewReader(fp)
for {
line, _, err := br.ReadLine()
if err != nil {
break
}
ips = append(ips, string(line))
}
err = AddIP(region, string(line))
if err != nil {
logs.Warn("add %s %s proxy fail: %v", region, string(line), err)
}
}
return ips
}

9
install.sh
View File

@@ -0,0 +1,9 @@
echo "add no proxy address"
ipset create GTUN-NOPROXY hash:net
iptables -t mangle -I PREROUTING -m set --match-set GTUN-NOPROXY dst -j ACCEPT
iptables -t mangle -I OUTPUT -m set --match-set GTUN-NOPROXY dst -j ACCEPT
echo "start gtun"
nohup ./gtun-linux-amd64 -c gtun.yaml &
echo "start success."

7
uninstall.sh Normal file
View File

@@ -0,0 +1,7 @@
echo "add no proxy address"
iptables -t mangle -D PREROUTING -m set --match-set GTUN-NOPROXY dst -j ACCEPT
iptables -t mangle -D OUTPUT -m set --match-set GTUN-NOPROXY dst -j ACCEPT
ipset destroy GTUN-NOPROXY
echo "stop gtun"
killall gtun-linux_amd64