https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198928
Bug ID: 198928
Summary: mbuf tags aren't being copied from the leading
fragment (header) to the subsequent fragment packets
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 154834
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=154834&action=edit
After some back and forth on the mailing list (freebsd-net) Hans Petter Selasky
came up with the attached patch which I tested successfully.
I've noticed that mbuf tags aren't being copied from the leading fragment
(header) to the subsequent fragment packets. In other words, one would expect
that all fragments of a packet are carrying the same tags that were set on the
original packet. I have built a simple test were I use ipfw with ALTQ and sent
large packet (bigger then MTU) off that BSD machine. I have observed that the
leading fragment (m0) packet is going through the right class although the next
fragments are hitting the default class for unclassified packets.
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