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Feature: resolve ip with a proxy adapter

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This commit is contained in:
yaling888
2022-02-23 02:38:50 +08:00
parent b192238699
commit d876d6e74c
14 changed files with 357 additions and 101 deletions
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60
component/dialer/dialer.go
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@ -9,6 +9,19 @@ import (
)
func DialContext(ctx context.Context, network, address string, options ...Option) (net.Conn, error) {
opt := &option{
interfaceName: DefaultInterface.Load(),
routingMark: int(DefaultRoutingMark.Load()),
}
for _, o := range DefaultOptions {
o(opt)
}
for _, o := range options {
o(opt)
}
switch network {
case "tcp4", "tcp6", "udp4", "udp6":
host, port, err := net.SplitHostPort(address)
@ -19,17 +32,25 @@ func DialContext(ctx context.Context, network, address string, options ...Option
var ip net.IP
switch network {
case "tcp4", "udp4":
ip, err = resolver.ResolveIPv4(host)
if opt.interfaceName != "" {
ip, err = resolver.ResolveIPv4WithMain(host)
} else {
ip, err = resolver.ResolveIPv4(host)
}
default:
ip, err = resolver.ResolveIPv6(host)
if opt.interfaceName != "" {
ip, err = resolver.ResolveIPv6WithMain(host)
} else {
ip, err = resolver.ResolveIPv6(host)
}
}
if err != nil {
return nil, err
}
return dialContext(ctx, network, ip, port, options)
return dialContext(ctx, network, ip, port, opt)
case "tcp", "udp":
return dualStackDialContext(ctx, network, address, options)
return dualStackDialContext(ctx, network, address, opt)
default:
return nil, errors.New("network invalid")
}
@ -67,20 +88,7 @@ func ListenPacket(ctx context.Context, network, address string, options ...Optio
return lc.ListenPacket(ctx, network, address)
}
func dialContext(ctx context.Context, network string, destination net.IP, port string, options []Option) (net.Conn, error) {
opt := &option{
interfaceName: DefaultInterface.Load(),
routingMark: int(DefaultRoutingMark.Load()),
}
for _, o := range DefaultOptions {
o(opt)
}
for _, o := range options {
o(opt)
}
func dialContext(ctx context.Context, network string, destination net.IP, port string, opt *option) (net.Conn, error) {
dialer := &net.Dialer{}
if opt.interfaceName != "" {
if err := bindIfaceToDialer(opt.interfaceName, dialer, network, destination); err != nil {
@ -94,7 +102,7 @@ func dialContext(ctx context.Context, network string, destination net.IP, port s
return dialer.DialContext(ctx, network, net.JoinHostPort(destination.String(), port))
}
func dualStackDialContext(ctx context.Context, network, address string, options []Option) (net.Conn, error) {
func dualStackDialContext(ctx context.Context, network, address string, opt *option) (net.Conn, error) {
host, port, err := net.SplitHostPort(address)
if err != nil {
return nil, err
@ -127,16 +135,24 @@ func dualStackDialContext(ctx context.Context, network, address string, options
var ip net.IP
if ipv6 {
ip, result.error = resolver.ResolveIPv6(host)
if opt.interfaceName != "" {
ip, result.error = resolver.ResolveIPv6WithMain(host)
} else {
ip, result.error = resolver.ResolveIPv6(host)
}
} else {
ip, result.error = resolver.ResolveIPv4(host)
if opt.interfaceName != "" {
ip, result.error = resolver.ResolveIPv4WithMain(host)
} else {
ip, result.error = resolver.ResolveIPv4(host)
}
}
if result.error != nil {
return
}
result.resolved = true
result.Conn, result.error = dialContext(ctx, network, ip, port, options)
result.Conn, result.error = dialContext(ctx, network, ip, port, opt)
}
go startRacer(ctx, network+"4", host, false)