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Fix UDP domain NAT

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This commit is contained in:
世界
2023-10-25 12:00:00 +08:00
parent 23aa8a0543
commit cb2e15f8a7
11 changed files with 138 additions and 13 deletions
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11
outbound/default.go
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@@ -17,6 +17,7 @@ import (
"github.com/sagernet/sing/common/bufio"
"github.com/sagernet/sing/common/canceler"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
)
@@ -119,7 +120,10 @@ func NewPacketConnection(ctx context.Context, this N.Dialer, conn N.PacketConn,
return err
}
if destinationAddress.IsValid() {
if natConn, loaded := common.Cast[bufio.NATPacketConn](conn); loaded {
if metadata.Destination.IsFqdn() {
outConn = bufio.NewNATPacketConn(bufio.NewPacketConn(outConn), M.SocksaddrFrom(destinationAddress, metadata.Destination.Port), metadata.Destination)
}
if natConn, loaded := common.Cast[*bufio.NATPacketConn](conn); loaded {
natConn.UpdateDestination(destinationAddress)
}
}
@@ -159,7 +163,10 @@ func NewDirectPacketConnection(ctx context.Context, router adapter.Router, this
return err
}
if destinationAddress.IsValid() {
if natConn, loaded := common.Cast[bufio.NATPacketConn](conn); loaded {
if metadata.Destination.IsFqdn() {
outConn = bufio.NewNATPacketConn(bufio.NewPacketConn(outConn), M.SocksaddrFrom(destinationAddress, metadata.Destination.Port), metadata.Destination)
}
if natConn, loaded := common.Cast[*bufio.NATPacketConn](conn); loaded {
natConn.UpdateDestination(destinationAddress)
}
}