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From James Peach <>
Subject Re: Review Request 58224: Optionally verify the source IP address for libprocess messages.
Date Tue, 02 May 2017 21:02:46 GMT

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(Updated May 2, 2017, 9:02 p.m.)

Review request for mesos and Benjamin Mahler.

Bugs: MESOS-7401

Repository: mesos


In general, libprocess is unable to validate that a peer
is a legitimate owner of the UPID it claims in a libprocess
message. This change adds a check that the IP address in the
UPID matches the peer address. This makes spoofing the UPID
harder (eg. to send authenticated messages), but also breaks
some legitimate configurations, particularly on multihomed

Diffs (updated)

  3rdparty/libprocess/src/process.cpp f5b666f894215cb1861c244c94b382e0739bc5c9 




make check (Fedora 25). Light manual testing.

With LIBPROCESS_pin_peer_address=true, all Mesos tests pass except ``ExamplesTest.DiskFullFramework``,
however enabling this will definitely break some libprocess APIs (though not in the way that
Mesos uses them) and legitimate multi-homed configurations. Note that setting LIBPROCESS_ip=
makes you multihomed for this purpose, which is why ``ExamplesTest.DiskFullFramework`` breaks.


James Peach

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