#2041: NTP server initial commits

src/primaite/simulator/network/protocols/ntp.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+from ipaddress import IPv4Address
+from typing import Optional
+
+from pydantic import BaseModel
+
+from primaite.simulator.network.protocols.packet import DataPacket
+
+
+class NTPRequest(BaseModel):
+    """Represents a NTP Request packet."""
+
+    pass
+
+
+class NTPReply(BaseModel):
+    """Represents a NTP Reply packet."""
+
+    pass
+
+
+class NTPPacket(DataPacket):
+    """
+    Represents the NTP layer of a network frame.
+
+    :param ntp_request: NTPRequest packet from NTP client.
+    :param ntp_reply: NTPReply packet from NTP Server.
+    """
+
+    ntp_request: NTPRequest
+    "NTP Request packet sent by NTP Client."
+    ntp_reply: Optional[NTPReply] = None
+    "NTP Reply packet generated by NTP Server."