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feat: wireguard add
dialer-proxy config to support chain forwarding
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package proxydialer | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "net/netip" | ||
| "strings" | ||
|
|
||
| N "github.com/Dreamacro/clash/common/net" | ||
| C "github.com/Dreamacro/clash/constant" | ||
| "github.com/Dreamacro/clash/tunnel" | ||
| ) | ||
|
|
||
| type proxyDialer struct { | ||
| proxy C.Proxy | ||
| dialer C.Dialer | ||
| } | ||
|
|
||
| func New(proxy C.Proxy, dialer C.Dialer) C.Dialer { | ||
| return proxyDialer{proxy: proxy, dialer: dialer} | ||
| } | ||
|
|
||
| func NewByName(proxyName string, dialer C.Dialer) (C.Dialer, error) { | ||
| proxies := tunnel.Proxies() | ||
| if proxy, ok := proxies[proxyName]; ok { | ||
| return New(proxy, dialer), nil | ||
| } | ||
| return nil, fmt.Errorf("proxyName[%s] not found", proxyName) | ||
| } | ||
|
|
||
| func (p proxyDialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) { | ||
| currentMeta, err := addrToMetadata(address) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if strings.Contains(network, "udp") { // using in wireguard outbound | ||
| currentMeta.NetWork = C.UDP | ||
| pc, err := p.proxy.ListenPacketWithDialer(ctx, p.dialer, currentMeta) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return N.NewBindPacketConn(pc, currentMeta.UDPAddr()), nil | ||
| } | ||
| return p.proxy.DialContextWithDialer(ctx, p.dialer, currentMeta) | ||
| } | ||
|
|
||
| func (p proxyDialer) ListenPacket(ctx context.Context, network, address string, rAddrPort netip.AddrPort) (net.PacketConn, error) { | ||
| currentMeta, err := addrToMetadata(rAddrPort.String()) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| currentMeta.NetWork = C.UDP | ||
| return p.proxy.ListenPacketWithDialer(ctx, p.dialer, currentMeta) | ||
| } | ||
|
|
||
| func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) { | ||
| host, port, err := net.SplitHostPort(rawAddress) | ||
| if err != nil { | ||
| err = fmt.Errorf("addrToMetadata failed: %w", err) | ||
| return | ||
| } | ||
|
|
||
| if ip, err := netip.ParseAddr(host); err != nil { | ||
| addr = &C.Metadata{ | ||
| Host: host, | ||
| DstPort: port, | ||
| } | ||
| } else { | ||
| addr = &C.Metadata{ | ||
| Host: "", | ||
| DstIP: ip.Unmap(), | ||
| DstPort: port, | ||
| } | ||
| } | ||
|
|
||
| return | ||
| } |
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