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Feature: add dhcp type dns client (#1509)

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This commit is contained in:
Kr328
2021-09-06 23:07:34 +08:00
committed by GitHub
parent a2d59d6ef5
commit a5b950a779
26 changed files with 759 additions and 288 deletions
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40
component/dialer/bind_darwin.go
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@ -3,51 +3,57 @@ package dialer
import (
"net"
"syscall"
"golang.org/x/sys/unix"
"github.com/Dreamacro/clash/component/iface"
)
type controlFn = func(network, address string, c syscall.RawConn) error
func bindControl(ifaceIdx int) controlFn {
return func(network, address string, c syscall.RawConn) error {
func bindControl(ifaceIdx int, chain controlFn) controlFn {
return func(network, address string, c syscall.RawConn) (err error) {
defer func() {
if err == nil && chain != nil {
err = chain(network, address, c)
}
}()
ipStr, _, err := net.SplitHostPort(address)
if err == nil {
ip := net.ParseIP(ipStr)
if ip != nil && !ip.IsGlobalUnicast() {
return nil
return
}
}
return c.Control(func(fd uintptr) {
switch network {
case "tcp4", "udp4":
syscall.SetsockoptInt(int(fd), syscall.IPPROTO_IP, syscall.IP_BOUND_IF, ifaceIdx)
unix.SetsockoptInt(int(fd), unix.IPPROTO_IP, unix.IP_BOUND_IF, ifaceIdx)
case "tcp6", "udp6":
syscall.SetsockoptInt(int(fd), syscall.IPPROTO_IPV6, syscall.IPV6_BOUND_IF, ifaceIdx)
unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, ifaceIdx)
}
})
}
}
func bindIfaceToDialer(dialer *net.Dialer, ifaceName string) error {
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(ifaceName)
})
func bindIfaceToDialer(ifaceName string, dialer *net.Dialer, _ string, _ net.IP) error {
ifaceObj, err := iface.ResolveInterface(ifaceName)
if err != nil {
return err
}
dialer.Control = bindControl(iface.(*net.Interface).Index)
dialer.Control = bindControl(ifaceObj.Index, dialer.Control)
return nil
}
func bindIfaceToListenConfig(lc *net.ListenConfig, ifaceName string) error {
iface, err, _ := ifaceSingle.Do(func() (interface{}, error) {
return net.InterfaceByName(ifaceName)
})
func bindIfaceToListenConfig(ifaceName string, lc *net.ListenConfig, _, address string) (string, error) {
ifaceObj, err := iface.ResolveInterface(ifaceName)
if err != nil {
return err
return "", err
}
lc.Control = bindControl(iface.(*net.Interface).Index)
return nil
lc.Control = bindControl(ifaceObj.Index, lc.Control)
return address, nil
}