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Fix uTP sniffer

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世界 2025-04-06 16:19:46 +08:00
parent af17eaa537
commit 24af0766ac
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GPG Key ID: CD109927C34A63C4
2 changed files with 19 additions and 1 deletions
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4
common/sniff/bittorrent.go
View File

@ -68,7 +68,9 @@ func UTP(_ context.Context, metadata *adapter.InboundContext, packet []byte) err
if err != nil {
return err
}
if extension > 0x04 {
return os.ErrInvalid
}
var length byte
err = binary.Read(reader, binary.BigEndian, &length)
if err != nil {

16
common/sniff/bittorrent_test.go
View File

@ -71,3 +71,19 @@ func TestSniffUDPTracker(t *testing.T) {
require.Equal(t, C.ProtocolBitTorrent, metadata.Protocol)
}
}
func TestSniffNotUTP(t *testing.T) {
t.Parallel()
packets := []string{
"0102736470696e674958d580121500000000000079aaed6717a39c27b07c0c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
}
for _, pkt := range packets {
pkt, err := hex.DecodeString(pkt)
require.NoError(t, err)
var metadata adapter.InboundContext
err = sniff.UTP(context.TODO(), &metadata, pkt)
require.Error(t, err)
}
}