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Add route.default_interface option

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This commit is contained in:
世界 2022-07-15 11:51:51 +08:00
parent 5a3de62c50
commit 377f3f83a2
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GPG key ID: CD109927C34A63C4
12 changed files with 45 additions and 23 deletions
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5
adapter/router.go
View file

@ -30,9 +30,10 @@ type Router interface {
LookupDefault(ctx context.Context, domain string) ([]netip.Addr, error)
InterfaceBindManager() control.BindManager
DefaultInterface() string
AutoDetectInterface() bool
DefaultInterfaceName() string
DefaultInterfaceIndex() int
AutoDetectInterfaceName() string
AutoDetectInterfaceIndex() int
}
type Rule interface {

2
common/dialer/auto_linux.go
View file

@ -10,7 +10,7 @@ import (
func BindToInterface(router adapter.Router) control.Func {
return func(network, address string, conn syscall.RawConn) error {
interfaceName := router.DefaultInterfaceName()
interfaceName := router.AutoDetectInterfaceName()
if interfaceName == "" {
return nil
}

10
common/dialer/auto_windows.go
View file

@ -32,7 +32,7 @@ func bind6(handle windows.Handle, ifaceIdx int) error {
func BindToInterface(router adapter.Router) control.Func {
return func(network, address string, conn syscall.RawConn) error {
interfaceName := router.DefaultInterfaceName()
interfaceName := router.AutoDetectInterfaceName()
if interfaceName == "" {
return nil
}
@ -47,20 +47,20 @@ func BindToInterface(router adapter.Router) control.Func {
handle := windows.Handle(fd)
// handle ip empty, e.g. net.Listen("udp", ":0")
if ipStr == "" {
innerErr = bind4(handle, router.DefaultInterfaceIndex())
innerErr = bind4(handle, router.AutoDetectInterfaceIndex())
if innerErr != nil {
return
}
// try bind ipv6, if failed, ignore. it's a workaround for windows disable interface ipv6
bind6(handle, router.DefaultInterfaceIndex())
bind6(handle, router.AutoDetectInterfaceIndex())
return
}
switch network {
case "tcp4", "udp4", "ip4":
innerErr = bind4(handle, router.DefaultInterfaceIndex())
innerErr = bind4(handle, router.AutoDetectInterfaceIndex())
case "tcp6", "udp6":
innerErr = bind6(handle, router.DefaultInterfaceIndex())
innerErr = bind6(handle, router.AutoDetectInterfaceIndex())
}
})
return E.Errors(innerErr, err)

11
common/dialer/default.go
View file

@ -29,19 +29,22 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
} else if router.AutoDetectInterface() {
if runtime.GOOS == "windows" {
dialer.Control = control.Append(dialer.Control, control.BindToInterfaceIndexFunc(func() int {
return router.DefaultInterfaceIndex()
return router.AutoDetectInterfaceIndex()
}))
listener.Control = control.Append(listener.Control, control.BindToInterfaceIndexFunc(func() int {
return router.DefaultInterfaceIndex()
return router.AutoDetectInterfaceIndex()
}))
} else {
dialer.Control = control.Append(dialer.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
return router.DefaultInterfaceName()
return router.AutoDetectInterfaceName()
}))
listener.Control = control.Append(listener.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
return router.DefaultInterfaceName()
return router.AutoDetectInterfaceName()
}))
}
} else if router.DefaultInterface() != "" {
dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
}
if options.RoutingMark != 0 {
dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark))

2
docs/configuration/inbound/tun.md
View file

@ -47,7 +47,7 @@ Set the default route to the Tun.
!!! error ""
To avoid traffic loopback, set `route.auto_delect_interface` or `outbound.bind_interface`
To avoid traffic loopback, set `route.auto_detect_interface` or `route.default_interface` or `outbound.bind_interface`
#### hijack_dns

15
docs/configuration/route/index.md
View file

@ -7,7 +7,8 @@
"geosite": {},
"rules": [],
"final": "",
"auto_detect_interface": false
"auto_detect_interface": false,
"default_interface": "en0"
}
}
```
@ -32,4 +33,14 @@ Default outbound tag. the first outbound will be used if empty.
Bind outbound connections to the default NIC by default to prevent routing loops under Tun.
Takes no effect if `outbound.bind_interface` is set.
Takes no effect if `outbound.bind_interface` is set.
#### default_interface
!!! error ""
Linux and Windows only
Bind outbound connections to the specified NIC by default to prevent routing loops under Tun.
Takes no effect if `auto_detect_interface` is set.

2
go.mod
View file

@ -10,7 +10,7 @@ require (
github.com/sagernet/sing v0.0.0-20220714145306-09b55ce4b6d0
github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d
github.com/spf13/cobra v1.5.0
github.com/stretchr/testify v1.8.0
golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d

4
go.sum
View file

@ -31,8 +31,8 @@ github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619 h1:oHbOmq1WS0XaZ
github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619/go.mod h1:y2fpvoxukw3G7eApIZwkcpcG/NE4AB8pCQI0Qd8rMqk=
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4 h1:s3yKbPfiNwFFGfcNUs8NcKYzor78HWmZuDl5B0dsVQI=
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4/go.mod h1:MuyT+9fEPjvauAv0fSE0a6Q+l0Tv2ZrAafTkYfnxBFw=
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361 h1:M6m9mXG5u151voF0wSDLf5JoDwHU5+4FOMrzb/kaRdc=
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361/go.mod h1:p7QbUBs2ejf6UQsiHyy1xGAWOk9JWQjZTHy8pOmkWmo=
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d h1:wt+OEJA3EiLIjwp+DROTtIXLox+9dwMRsVY/K2MvjXo=
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d/go.mod h1:p7QbUBs2ejf6UQsiHyy1xGAWOk9JWQjZTHy8pOmkWmo=
github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=

1
option/route.go
View file

@ -14,6 +14,7 @@ type RouteOptions struct {
Rules []Rule `json:"rules,omitempty"`
Final string `json:"final,omitempty"`
AutoDetectInterface bool `json:"auto_detect_interface,omitempty"`
DefaultInterface string `json:"default_interface,omitempty"`
}
func (o RouteOptions) Equals(other RouteOptions) bool {

10
route/router.go
View file

@ -68,6 +68,7 @@ type Router struct {
interfaceBindManager control.BindManager
networkMonitor tun.NetworkUpdateMonitor
autoDetectInterface bool
defaultInterface string
interfaceMonitor tun.DefaultInterfaceMonitor
}
@ -89,6 +90,7 @@ func NewRouter(ctx context.Context, logger log.ContextLogger, dnsLogger log.Cont
defaultDomainStrategy: dns.DomainStrategy(dnsOptions.Strategy),
interfaceBindManager: control.NewBindManager(),
autoDetectInterface: options.AutoDetectInterface,
defaultInterface: options.DefaultInterface,
}
for i, ruleOptions := range options.Rules {
routeRule, err := NewRule(router, logger, ruleOptions)
@ -540,14 +542,18 @@ func (r *Router) AutoDetectInterface() bool {
return r.autoDetectInterface
}
func (r *Router) DefaultInterfaceName() string {
func (r *Router) DefaultInterface() string {
return r.defaultInterface
}
func (r *Router) AutoDetectInterfaceName() string {
if r.interfaceMonitor == nil {
return ""
}
return r.interfaceMonitor.DefaultInterfaceName()
}
func (r *Router) DefaultInterfaceIndex() int {
func (r *Router) AutoDetectInterfaceIndex() int {
if r.interfaceMonitor == nil {
return -1
}

2
test/go.mod
View file

@ -34,7 +34,7 @@ require (
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619 // indirect
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4 // indirect
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361 // indirect
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d // indirect
github.com/sirupsen/logrus v1.8.1 // indirect
github.com/vishvananda/netlink v1.1.0 // indirect
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect

4
test/go.sum
View file

@ -58,8 +58,8 @@ github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619 h1:oHbOmq1WS0XaZ
github.com/sagernet/sing-dns v0.0.0-20220711062726-c64e938e4619/go.mod h1:y2fpvoxukw3G7eApIZwkcpcG/NE4AB8pCQI0Qd8rMqk=
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4 h1:s3yKbPfiNwFFGfcNUs8NcKYzor78HWmZuDl5B0dsVQI=
github.com/sagernet/sing-shadowsocks v0.0.0-20220715031600-dacfbcd606f4/go.mod h1:MuyT+9fEPjvauAv0fSE0a6Q+l0Tv2ZrAafTkYfnxBFw=
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361 h1:M6m9mXG5u151voF0wSDLf5JoDwHU5+4FOMrzb/kaRdc=
github.com/sagernet/sing-tun v0.0.0-20220714151007-c0d248af0361/go.mod h1:p7QbUBs2ejf6UQsiHyy1xGAWOk9JWQjZTHy8pOmkWmo=
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d h1:wt+OEJA3EiLIjwp+DROTtIXLox+9dwMRsVY/K2MvjXo=
github.com/sagernet/sing-tun v0.0.0-20220715065926-9dc73c0bcc1d/go.mod h1:p7QbUBs2ejf6UQsiHyy1xGAWOk9JWQjZTHy8pOmkWmo=
github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=