Bug 1078

Summary:	PacketTagList::Add performs NS_ASSERT counting one byte too few
Product:	ns-3	Reporter:	Christian <c.facchini>
Component:	core	Assignee:	Mathieu Lacage <mathieu.lacage>
Status:	RESOLVED FIXED
Severity:	trivial	CC:	ns-bugs
Priority:	P5
Version:	pre-release
Hardware:	All
OS:	All

Description Christian 2011-03-24 09:27:05 EDT

The PacketTagList::Add (Tag) method checks that the tag being added is not greater than PACKET_TAG_MAX_SIZE.

  NS_ASSERT (tag.GetSerializedSize () < PACKET_TAG_MAX_SIZE);

PACKET_TAG_MAX_SIZE is set to 20.
The Tag in questions *can* contain an Inet6SocketAddress.
If that is the case its size will be:
  16 (IPv6 address) + 2 (port number) + 1+1 (as defined in Address::GetSerializedSize()) which sums up to 20, and systematically fails the assert.

I think that replacing '<' with '<=' fixes the issue.

Comment 1 Mathieu Lacage 2011-03-24 10:16:08 EDT

changeset afe2960e58b7