add ipv6 support for tun

This commit is contained in:
wwqgtxx 2024-09-11 09:11:48 +08:00
parent b661d94278
commit 9edf35c4bc
7 changed files with 91 additions and 6 deletions

View File

@ -1,8 +1,11 @@
package tun
import (
"encoding/json"
"io"
"net"
"net/netip"
"strings"
C "github.com/metacubex/mihomo/constant"
LC "github.com/metacubex/mihomo/listener/config"
@ -14,16 +17,49 @@ import (
func Start(fd int, gateway, portal, dns string) (io.Closer, error) {
log.Debugln("TUN: fd = %d, gateway = %s, portal = %s, dns = %s", fd, gateway, portal, dns)
var prefix4 []netip.Prefix
var prefix6 []netip.Prefix
for _, gatewayStr := range strings.Split(gateway, ",") { // "172.19.0.1/30" or "172.19.0.1/30,fdfe:dcba:9876::1/126"
gatewayStr = strings.TrimSpace(gatewayStr)
if len(gatewayStr) == 0 {
continue
}
prefix, err := netip.ParsePrefix(gatewayStr)
if err != nil {
log.Errorln("TUN:", err)
return nil, err
}
if prefix.Addr().Is4() {
prefix4 = append(prefix4, prefix)
} else {
prefix6 = append(prefix6, prefix)
}
}
var dnsHijack []string
for _, dnsStr := range strings.Split(dns, ",") { // "172.19.0.2" or "0.0.0.0"
dnsStr = strings.TrimSpace(dnsStr)
if len(dnsStr) == 0 {
continue
}
dnsHijack = append(dnsHijack, net.JoinHostPort(dnsStr, "53"))
}
options := LC.Tun{
Enable: true,
Device: sing_tun.InterfaceName,
Stack: C.TunSystem,
DNSHijack: []string{dns + ":53"}, // "172.19.0.2" or "0.0.0.0"
Inet4Address: []netip.Prefix{netip.MustParsePrefix(gateway)}, // "172.19.0.1/30"
MTU: 9000, // private const val TUN_MTU = 9000 in TunService.kt
DNSHijack: dnsHijack,
Inet4Address: prefix4,
Inet6Address: prefix6,
MTU: 9000, // private const val TUN_MTU = 9000 in TunService.kt
FileDescriptor: fd,
}
tunOptions, _ := json.Marshal(options)
log.Debugln(string(tunOptions))
listener, err := sing_tun.New(options, tunnel.Tunnel)
if err != nil {
log.Errorln("TUN:", err)

View File

@ -77,6 +77,13 @@ class NetworkSettingsDesign(
configure = vpnDependencies::add,
)
switch(
value = srvStore::allowIpv6,
title = R.string.allow_ipv6,
summary = R.string.allow_ipv6_summary,
configure = vpnDependencies::add,
)
if (Build.VERSION.SDK_INT >= 29) {
switch(
value = srvStore::systemProxy,

View File

@ -217,6 +217,8 @@
<string name="geoip_fallback_code">GeoIP Fallback 区域代码</string>
<string name="allow_bypass">允许应用绕过</string>
<string name="allow_bypass_summary">允许其他应用绕过 VPN</string>
<string name="allow_ipv6">允许Ipv6</string>
<string name="allow_ipv6_summary">通过 VpnService 代理Ipv6流量</string>
<string name="clash_meta_wiki">Clash Meta Wiki</string>
<string name="meta_features">Meta Features</string>
<string name="unified_delay">Unified Delay</string>

View File

@ -122,6 +122,8 @@
<string name="block_loopback_summary">Block loopback connections</string>
<string name="allow_bypass">Allow Bypass</string>
<string name="allow_bypass_summary">Allows all apps to bypass this VPN connection</string>
<string name="allow_ipv6">Allow Ipv6</string>
<string name="allow_ipv6_summary">Allows ipv6 traffic via VpnService</string>
<string name="system_proxy">System Proxy</string>
<string name="system_proxy_summary">Attach http proxy to VpnService</string>
<string name="access_control_mode">Access Control Mode</string>

View File

@ -132,17 +132,31 @@ class TunService : VpnService(), CoroutineScope by CoroutineScope(Dispatchers.De
val device = with(Builder()) {
// Interface address
addAddress(TUN_GATEWAY, TUN_SUBNET_PREFIX)
if (store.allowIpv6) {
addAddress(TUN_GATEWAY6, TUN_SUBNET_PREFIX6)
}
// Route
if (store.bypassPrivateNetwork) {
resources.getStringArray(R.array.bypass_private_route).map(::parseCIDR).forEach {
addRoute(it.ip, it.prefix)
}
if (store.allowIpv6) {
resources.getStringArray(R.array.bypass_private_route6).map(::parseCIDR).forEach {
addRoute(it.ip, it.prefix)
}
}
// Route of virtual DNS
addRoute(TUN_DNS, 32)
if (store.allowIpv6) {
addRoute(TUN_DNS6, 128)
}
} else {
addRoute(NET_ANY, 0)
if (store.allowIpv6) {
addRoute(NET_ANY6, 0)
}
}
// Access Control
@ -171,6 +185,9 @@ class TunService : VpnService(), CoroutineScope by CoroutineScope(Dispatchers.De
// Virtual Dns Server
addDnsServer(TUN_DNS)
if (store.allowIpv6) {
addDnsServer(TUN_DNS6)
}
// Open MainActivity
setConfigureIntent(
@ -207,9 +224,9 @@ class TunService : VpnService(), CoroutineScope by CoroutineScope(Dispatchers.De
TunModule.TunDevice(
fd = establish()?.detachFd()
?: throw NullPointerException("Establish VPN rejected by system"),
gateway = "$TUN_GATEWAY/$TUN_SUBNET_PREFIX",
portal = TUN_PORTAL,
dns = if (store.dnsHijacking) NET_ANY else TUN_DNS,
gateway = "$TUN_GATEWAY/$TUN_SUBNET_PREFIX" + if (store.allowIpv6) ",$TUN_GATEWAY6/$TUN_SUBNET_PREFIX6" else "",
portal = TUN_PORTAL + if (store.allowIpv6) ",$TUN_PORTAL6" else "",
dns = if (store.dnsHijacking) NET_ANY else (TUN_DNS + if (store.allowIpv6) ",$TUN_DNS6" else ""),
)
}
@ -220,9 +237,14 @@ class TunService : VpnService(), CoroutineScope by CoroutineScope(Dispatchers.De
private const val TUN_MTU = 9000
private const val TUN_SUBNET_PREFIX = 30
private const val TUN_GATEWAY = "172.19.0.1"
private const val TUN_SUBNET_PREFIX6 = 126
private const val TUN_GATEWAY6 = "fdfe:dcba:9876::1"
private const val TUN_PORTAL = "172.19.0.2"
private const val TUN_PORTAL6 = "fdfe:dcba:9876::2"
private const val TUN_DNS = TUN_PORTAL
private const val TUN_DNS6 = TUN_PORTAL6
private const val NET_ANY = "0.0.0.0"
private const val NET_ANY6 = "::"
private val HTTP_PROXY_LOCAL_LIST: List<String> = listOf(
"localhost",

View File

@ -51,6 +51,11 @@ class ServiceStore(context: Context) {
defaultValue = true
)
var allowIpv6 by store.boolean(
key = "allow_ipv6",
defaultValue = false
)
var dynamicNotification by store.boolean(
key = "dynamic_notification",
defaultValue = true

View File

@ -77,4 +77,15 @@
<item>255.255.255.252/31</item>
<item>255.255.255.254/32</item>
</string-array>
<!-- exclude fc00::/7, fe80::/10, ff00::/8 -->
<string-array name="bypass_private_route6" translatable="false">
<item>::/1</item>
<item>8000::/2</item>
<item>c000::/3</item>
<item>e000::/4</item>
<item>f000::/5</item>
<item>f800::/6</item>
<item>fe00::/9</item>
<item>fec0::/10</item>
</string-array>
</resources>