allow Format 1 Setup Record to be 134,217,728 bytes

atac · Feb 10, 2023 · cd2f6c6 · cd2f6c6
1 parent 39aeb7c
commit cd2f6c6
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/chapter10/computer.py b/chapter10/computer.py
@@ -54,6 +54,8 @@ class ComputerF1(packet.Packet):
         u1 format
         p22''')
 
+    _MAX_PACKET_BYTES = 134_217_728
+
     def __init__(self, *args, **kwargs):
         packet.Packet.__init__(self, *args, **kwargs)
         if self.buffer:

diff --git a/chapter10/packet.py b/chapter10/packet.py
@@ -85,6 +85,8 @@ class Packet:
 
     csdw_format = BitFormat('u32 csdw')
 
+    _MAX_PACKET_BYTES = 524288
+
     def __init__(self, file=None, parent=None, **kwargs):
 
         self.parent = parent
@@ -199,7 +201,7 @@ def validate(self, silent=False):
         elif self.secondary_header:
             if self.secondary_sums != self.secondary_checksum:
                 err = InvalidPacket('Secondary header checksum mismatch!')
-        if self.data_length > 524288:
+        if self.data_length > self._MAX_PACKET_BYTES:
             err = InvalidPacket(
                 f'Data length {self.data_length} larger than allowed!')