[Bug 1075] New: extra: checksum computation bugs

bugzilla-daemon at netfilter.org bugzilla-daemon at netfilter.org
Fri Jun 24 13:04:33 CEST 2016


            Bug ID: 1075
           Summary: extra: checksum computation bugs
           Product: libnetfilter_queue
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P5
         Component: libnetfilter_queue
          Assignee: netfilter-buglog at lists.netfilter.org
          Reporter: alin.nastac at gmail.com

Created attachment 480
  --> https://bugzilla.netfilter.org/attachment.cgi?id=480&action=edit
checksum computation fix

There are 2 issues regarding transport checksum computation:
  - UDP checksum is computed incorrectly, the used pseudo IP header
    contains transport protocol 6 iso 17                           
  - on big endian arches the UDP/TCP checksum is incorrectly computed
    when payload length is odd                                       

This patch was derived from the one found in
http://www.spinics.net/lists/netfilter/msg56704.html .

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