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Fix system stack rewriting TUN subnet destinations to loopback

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The acceptLoop was rewriting any TCP destination within the TUN
address prefix to 127.0.0.1/::1. This incorrectly caught the
gateway address and other subnet addresses, not just the interface
address itself.
This commit is contained in:
世界 2026-03-23 19:37:57 +08:00
parent 0e624a007c
commit 24b12270db
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1 changed files with 1 additions and 17 deletions
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18
stack_system.go
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@ -330,23 +330,7 @@ func (s *System) acceptLoop(listener net.Listener) {
s.logger.Trace(E.New("unknown session with port ", connPort))
continue
}
destination := M.SocksaddrFromNetIP(session.Destination)
if destination.Addr.Is4() {
for _, prefix := range s.inet4Prefixes {
if prefix.Contains(destination.Addr) {
destination.Addr = netip.AddrFrom4([4]byte{127, 0, 0, 1})
break
}
}
} else {
for _, prefix := range s.inet6Prefixes {
if prefix.Contains(destination.Addr) {
destination.Addr = netip.AddrFrom16([16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1})
break
}
}
}
go s.handler.NewConnectionEx(s.ctx, conn, M.SocksaddrFromNetIP(session.Source), destination, nil)
go s.handler.NewConnectionEx(s.ctx, conn, M.SocksaddrFromNetIP(session.Source), M.SocksaddrFromNetIP(session.Destination), nil)
}
}