[Bug tapsets/19753] New: redirect udp.*msg probes to netfilter.*

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=19753

            Bug ID: 19753
           Summary: redirect udp.*msg probes to netfilter.*
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
          Assignee: systemtap at sourceware dot org
          Reporter: fche at redhat dot com
  Target Milestone: ---

As recently discussed on the mailing list, the current kprobes-based
udp.{send,recv}msg probes are less than ideal in that they sometimes pass along
null/not-yet-set host/port information.  We should provide an alternative
(conditional on %( systemtap_v >= "3.0" ... %)  that delegates to
netfilter.ip.local_{in,out} (?) instead of kprobes.  We should be able to get
pretty much the same information, and without debuginfo.

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