andre/mihomo
1
0
Fork 0
mirror of https://github.com/MetaCubeX/mihomo.git synced 2026-03-05 05:27:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

draft: Tun respond ICMP port unreachable when rejecting UDP packets

Browse Source
This commit is contained in:
H1JK
2026-01-01 06:48:36 +08:00
parent 1f8bee9710
commit 58c4110b57
9 changed files with 100 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
adapter/outbound/reject.go
View File

@@ -34,7 +34,10 @@ func (r *Reject) ListenPacketContext(ctx context.Context, metadata *C.Metadata)
if err := r.ResolveUDP(ctx, metadata); err != nil {
return nil, err
}
return newPacketConn(&nopPacketConn{}, r), nil
if r.drop {
return newPacketConn(dropPacketConn{}, r), nil
}
return newPacketConn(nopPacketConn{}, r), C.ErrResetByRule
}
func (r *Reject) ResolveUDP(ctx context.Context, metadata *C.Metadata) error {
@@ -90,12 +93,10 @@ func NewPass() *Reject {
type nopConn struct{}
func (rw nopConn) Read(b []byte) (int, error) { return 0, io.EOF }
func (rw nopConn) ReadBuffer(buffer *buf.Buffer) error { return io.EOF }
func (rw nopConn) Write(b []byte) (int, error) { return 0, io.EOF }
func (rw nopConn) WriteBuffer(buffer *buf.Buffer) error { return io.EOF }
func (rw nopConn) Read(b []byte) (int, error) { return 0, C.ErrResetByRule }
func (rw nopConn) ReadBuffer(buffer *buf.Buffer) error { return C.ErrResetByRule }
func (rw nopConn) Write(b []byte) (int, error) { return 0, C.ErrResetByRule }
func (rw nopConn) WriteBuffer(buffer *buf.Buffer) error { return C.ErrResetByRule }
func (rw nopConn) Close() error { return nil }
func (rw nopConn) LocalAddr() net.Addr { return nil }
func (rw nopConn) RemoteAddr() net.Addr { return nil }
@@ -110,11 +111,9 @@ type nopPacketConn struct{}
func (npc nopPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) {
return len(b), nil
}
func (npc nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error) {
return 0, nil, io.EOF
}
func (npc nopPacketConn) ReadFrom(b []byte) (int, net.Addr, error) { return 0, nil, C.ErrResetByRule }
func (npc nopPacketConn) WaitReadFrom() ([]byte, func(), net.Addr, error) {
return nil, nil, nil, io.EOF
return nil, nil, nil, C.ErrResetByRule
}
func (npc nopPacketConn) Close() error { return nil }
func (npc nopPacketConn) LocalAddr() net.Addr { return udpAddrIPv4Unspecified }
@@ -137,3 +136,18 @@ func (rw dropConn) RemoteAddr() net.Addr { return nil }
func (rw dropConn) SetDeadline(time.Time) error { return nil }
func (rw dropConn) SetReadDeadline(time.Time) error { return nil }
func (rw dropConn) SetWriteDeadline(time.Time) error { return nil }
type dropPacketConn struct{}
func (npc dropPacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) {
return len(b), nil
}
func (npc dropPacketConn) ReadFrom(b []byte) (int, net.Addr, error) { return 0, nil, io.EOF }
func (npc dropPacketConn) WaitReadFrom() ([]byte, func(), net.Addr, error) {
return nil, nil, nil, io.EOF
}
func (npc dropPacketConn) Close() error { return nil }
func (npc dropPacketConn) LocalAddr() net.Addr { return udpAddrIPv4Unspecified }
func (npc dropPacketConn) SetDeadline(time.Time) error { return nil }
func (npc dropPacketConn) SetReadDeadline(time.Time) error { return nil }
func (npc dropPacketConn) SetWriteDeadline(time.Time) error { return nil }