refactor: 优化UDP远程目标获取
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parent
527a602eba
commit
72fb153fe0
3 changed files with 21 additions and 12 deletions
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@ -129,6 +129,11 @@ func NewBase(opt BaseOption) *Base {
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type conn struct {
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net.Conn
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chain C.Chain
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lastAdapterRemote string
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}
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func (c *conn) RemoteDestination() string {
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return c.lastAdapterRemote
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}
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// Chains implements C.Connection
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@ -142,12 +147,17 @@ func (c *conn) AppendToChains(a C.ProxyAdapter) {
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}
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func NewConn(c net.Conn, a C.ProxyAdapter) C.Conn {
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return &conn{c, []string{a.Name()}}
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return &conn{c, []string{a.Name()}, a.Addr()}
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}
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type packetConn struct {
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net.PacketConn
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chain C.Chain
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lastAdapterRemote string
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}
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func (c *packetConn) RemoteDestination() string {
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return c.lastAdapterRemote
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}
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// Chains implements C.Connection
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@ -161,5 +171,5 @@ func (c *packetConn) AppendToChains(a C.ProxyAdapter) {
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}
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func newPacketConn(pc net.PacketConn, a C.ProxyAdapter) C.PacketConn {
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return &packetConn{pc, []string{a.Name()}}
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return &packetConn{pc, []string{a.Name()}, a.Addr()}
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}
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@ -41,6 +41,7 @@ const (
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type Connection interface {
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Chains() Chain
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AppendToChains(adapter ProxyAdapter)
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RemoteDestination() string
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}
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type Chain []string
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@ -288,14 +288,12 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
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}
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pCtx.InjectPacketConn(rawPc)
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actualProxy := proxy.Unwrap(metadata)
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if actualProxy != nil {
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if dst, _, err := net.SplitHostPort(actualProxy.Addr()); err == nil {
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addr := rawPc.RemoteDestination()
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if dst, _, err := net.SplitHostPort(addr); err == nil {
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metadata.RemoteDst = dst
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} else {
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if addrError, ok := err.(*net.AddrError); ok && strings.Contains(addrError.Err, "missing port") {
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metadata.RemoteDst = actualProxy.Addr()
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}
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metadata.RemoteDst = addr
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}
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}
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