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-rw-r--r--src/Protocol/Protocol17x.cpp25
1 files changed, 21 insertions, 4 deletions
diff --git a/src/Protocol/Protocol17x.cpp b/src/Protocol/Protocol17x.cpp
index 93621fcc2..83da072c5 100644
--- a/src/Protocol/Protocol17x.cpp
+++ b/src/Protocol/Protocol17x.cpp
@@ -1040,7 +1040,7 @@ void cProtocol172::AddReceivedData(const char * a_Data, int a_Size)
if (!HandlePacket(bb, PacketType))
{
// Unknown packet, already been reported, but without the length. Log the length here:
- LOGWARNING("Unhandled packet: type 0x%x, length %u", PacketType, PacketLen);
+ LOGWARNING("Unhandled packet: type 0x%x, state %d, length %u", PacketType, m_State, PacketLen);
#ifdef _DEBUG
// Dump the packet contents into the log:
@@ -1059,8 +1059,8 @@ void cProtocol172::AddReceivedData(const char * a_Data, int a_Size)
if (bb.GetReadableSpace() != 1)
{
// Read more or less than packet length, report as error
- LOGWARNING("Protocol 1.7: Wrong number of bytes read for packet 0x%x. Read %u bytes, packet contained %u bytes",
- PacketType, bb.GetUsedSpace() - bb.GetReadableSpace(), PacketLen
+ LOGWARNING("Protocol 1.7: Wrong number of bytes read for packet 0x%x, state %d. Read %u bytes, packet contained %u bytes",
+ PacketType, m_State, bb.GetUsedSpace() - bb.GetReadableSpace(), PacketLen
);
ASSERT(!"Read wrong number of bytes!");
m_Client->PacketError(PacketType);
@@ -1128,9 +1128,26 @@ bool cProtocol172::HandlePacket(cByteBuffer & a_ByteBuffer, UInt32 a_PacketType)
}
break;
}
+ default:
+ {
+ // Received a packet in an unknown state, report:
+ LOGWARNING("Received a packet in an unknown protocol state %d. Ignoring further packets.", m_State);
+
+ // Cannot kick the client - we don't know this state and thus the packet number for the kick packet
+
+ // Switch to a state when all further packets are silently ignored:
+ m_State = 255;
+ return false;
+ }
+ case 255:
+ {
+ // This is the state used for "not processing packets anymore" when we receive a bad packet from a client.
+ // Do not output anything (the caller will do that for us), just return failure
+ return false;
+ }
} // switch (m_State)
- // Unknown packet type, report to the client:
+ // Unknown packet type, report to the ClientHandle:
m_Client->PacketUnknown(a_PacketType);
return false;
}