169 lines
4.1 KiB
Go
169 lines
4.1 KiB
Go
package libbox
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import (
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"net"
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"net/netip"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-tun"
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"github.com/sagernet/sing/common"
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E "github.com/sagernet/sing/common/exceptions"
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)
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type TunOptions interface {
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GetInet4Address() RoutePrefixIterator
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GetInet6Address() RoutePrefixIterator
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GetDNSServerAddress() (string, error)
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GetMTU() int32
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GetAutoRoute() bool
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GetStrictRoute() bool
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GetInet4RouteAddress() RoutePrefixIterator
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GetInet6RouteAddress() RoutePrefixIterator
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GetInet4RouteExcludeAddress() RoutePrefixIterator
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GetInet6RouteExcludeAddress() RoutePrefixIterator
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GetInet4RouteRange() RoutePrefixIterator
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GetInet6RouteRange() RoutePrefixIterator
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GetIncludePackage() StringIterator
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GetExcludePackage() StringIterator
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IsHTTPProxyEnabled() bool
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GetHTTPProxyServer() string
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GetHTTPProxyServerPort() int32
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GetHTTPProxyBypassDomain() StringIterator
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GetHTTPProxyMatchDomain() StringIterator
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}
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type RoutePrefix struct {
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address netip.Addr
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prefix int
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}
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func (p *RoutePrefix) Address() string {
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return p.address.String()
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}
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func (p *RoutePrefix) Prefix() int32 {
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return int32(p.prefix)
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}
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func (p *RoutePrefix) Mask() string {
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var bits int
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if p.address.Is6() {
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bits = 128
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} else {
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bits = 32
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}
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return net.IP(net.CIDRMask(p.prefix, bits)).String()
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}
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func (p *RoutePrefix) String() string {
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return netip.PrefixFrom(p.address, p.prefix).String()
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}
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type RoutePrefixIterator interface {
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Next() *RoutePrefix
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HasNext() bool
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}
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func mapRoutePrefix(prefixes []netip.Prefix) RoutePrefixIterator {
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return newIterator(common.Map(prefixes, func(prefix netip.Prefix) *RoutePrefix {
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return &RoutePrefix{
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address: prefix.Addr(),
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prefix: prefix.Bits(),
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}
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}))
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}
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var _ TunOptions = (*tunOptions)(nil)
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type tunOptions struct {
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*tun.Options
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routeRanges []netip.Prefix
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option.TunPlatformOptions
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}
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func (o *tunOptions) GetInet4Address() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet4Address)
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}
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func (o *tunOptions) GetInet6Address() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet6Address)
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}
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func (o *tunOptions) GetDNSServerAddress() (string, error) {
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if len(o.Inet4Address) == 0 || o.Inet4Address[0].Bits() == 32 {
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return "", E.New("need one more IPv4 address for DNS hijacking")
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}
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return o.Inet4Address[0].Addr().Next().String(), nil
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}
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func (o *tunOptions) GetMTU() int32 {
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return int32(o.MTU)
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}
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func (o *tunOptions) GetAutoRoute() bool {
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return o.AutoRoute
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}
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func (o *tunOptions) GetStrictRoute() bool {
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return o.StrictRoute
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}
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func (o *tunOptions) GetInet4RouteAddress() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet4RouteAddress)
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}
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func (o *tunOptions) GetInet6RouteAddress() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet6RouteAddress)
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}
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func (o *tunOptions) GetInet4RouteExcludeAddress() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet4RouteExcludeAddress)
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}
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func (o *tunOptions) GetInet6RouteExcludeAddress() RoutePrefixIterator {
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return mapRoutePrefix(o.Inet6RouteExcludeAddress)
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}
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func (o *tunOptions) GetInet4RouteRange() RoutePrefixIterator {
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return mapRoutePrefix(common.Filter(o.routeRanges, func(it netip.Prefix) bool {
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return it.Addr().Is4()
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}))
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}
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func (o *tunOptions) GetInet6RouteRange() RoutePrefixIterator {
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return mapRoutePrefix(common.Filter(o.routeRanges, func(it netip.Prefix) bool {
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return it.Addr().Is6()
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}))
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}
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func (o *tunOptions) GetIncludePackage() StringIterator {
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return newIterator(o.IncludePackage)
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}
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func (o *tunOptions) GetExcludePackage() StringIterator {
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return newIterator(o.ExcludePackage)
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}
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func (o *tunOptions) IsHTTPProxyEnabled() bool {
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if o.TunPlatformOptions.HTTPProxy == nil {
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return false
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}
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return o.TunPlatformOptions.HTTPProxy.Enabled
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}
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func (o *tunOptions) GetHTTPProxyServer() string {
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return o.TunPlatformOptions.HTTPProxy.Server
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}
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func (o *tunOptions) GetHTTPProxyServerPort() int32 {
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return int32(o.TunPlatformOptions.HTTPProxy.ServerPort)
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}
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func (o *tunOptions) GetHTTPProxyBypassDomain() StringIterator {
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return newIterator(o.TunPlatformOptions.HTTPProxy.BypassDomain)
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}
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func (o *tunOptions) GetHTTPProxyMatchDomain() StringIterator {
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return newIterator(o.TunPlatformOptions.HTTPProxy.MatchDomain)
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}
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