109 lines
1.8 KiB
Go
109 lines
1.8 KiB
Go
package config
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import (
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"fmt"
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"mpbl3p/proxy"
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"mpbl3p/tcp"
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"mpbl3p/tun"
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"mpbl3p/udp"
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)
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// TODO: Delete this code as soon as an alternative is available
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type UselessMac struct{}
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func (UselessMac) CodeLength() int {
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return 0
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}
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func (UselessMac) Generate([]byte) []byte {
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return nil
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}
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func (u UselessMac) Verify([]byte, []byte) error {
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return nil
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}
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func (c Configuration) Build() (*proxy.Proxy, error) {
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p := proxy.NewProxy(0)
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p.Generator = UselessMac{}
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if c.Host.InterfaceName == "" {
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c.Host.InterfaceName = "nc%d"
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}
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ss, err := tun.NewTun(c.Host.InterfaceName, 1500)
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if err != nil {
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return nil, err
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}
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p.Source = ss
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p.Sink = ss
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for _, peer := range c.Peers {
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switch peer.Method {
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case "TCP":
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err := buildTcp(p, peer)
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if err != nil {
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return nil, err
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}
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case "UDP":
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err := buildUdp(p, peer)
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if err != nil {
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return nil, err
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}
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}
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}
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return p, nil
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}
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func buildTcp(p *proxy.Proxy, peer Peer) error {
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if peer.RemoteHost != "" {
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f, err := tcp.InitiateFlow(
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fmt.Sprintf("%s:", peer.LocalHost),
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fmt.Sprintf("%s:%d", peer.RemoteHost, peer.RemotePort),
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)
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if err != nil {
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return err
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}
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p.AddConsumer(f)
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p.AddProducer(f, UselessMac{})
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return nil
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}
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err := tcp.NewListener(p, fmt.Sprintf("%s:%d", peer.LocalHost, peer.LocalPort), UselessMac{})
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if err != nil {
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return err
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}
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return nil
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}
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func buildUdp(p *proxy.Proxy, peer Peer) error {
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if peer.RemoteHost != "" {
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f, err := udp.InitiateFlow(
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fmt.Sprintf("%s:", peer.LocalHost),
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fmt.Sprintf("%s:%d", peer.RemoteHost, peer.RemotePort),
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)
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if err != nil {
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return err
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}
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p.AddConsumer(f)
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p.AddProducer(f, UselessMac{})
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return nil
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}
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err := udp.NewListener(p, fmt.Sprintf("%s:%d", peer.LocalHost, peer.LocalPort), UselessMac{})
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if err != nil {
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return err
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}
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return nil
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}
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