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fix(link): transfer fragmented packet

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源文雨
2024-07-17 15:43:44 +09:00
parent 06853c6552
commit cb2fe9bd21
5 changed files with 77 additions and 40 deletions
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4
gold/link/recv.go
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@@ -16,7 +16,7 @@ func (l *Link) Read() *head.Packet {
}
func (m *Me) wait(data []byte) *head.Packet {
if len(data) < 60 { // not a valid packet
if len(data) < head.PacketHeadLen { // not a valid packet
return nil
}
bound := 64
@@ -33,7 +33,7 @@ func (m *Me) wait(data []byte) *head.Packet {
logrus.Debugln("[recv] drop invalid flags packet:", hex.EncodeToString(data[11:12]), hex.EncodeToString(data[10:11]))
return nil
}
crc := binary.LittleEndian.Uint64(data[52:60])
crc := binary.LittleEndian.Uint64(data[52:head.PacketHeadLen])
if m.recved.Get(crc) { // 是重放攻击
logrus.Warnln("[recv] ignore duplicated crc packet", strconv.FormatUint(crc, 16))
return nil