[Bugs] [Bug 1343290] enabling glusternfs with nfs.rpc-auth-allow to many hosts failed

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1343290



--- Comment #5 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/14698 committed in release-3.7 by Niels de
Vos (ndevos at redhat.com) 
------
commit 6a1559ff8057e5c2a992a990cfb630932e6928d2
Author: Bipin Kunal <bkunal at redhat.com>
Date:   Fri Jun 10 17:03:35 2016 +0530

    nfs: build exportlist with multiple groupnodes

    The EXPORT procedure of the MOUNT protocol does not correctly create
    structures for the 'groupnodes' in the reply. Each 'groupnode' should be
    a single entry in the 'nfs.rpc-auth-allow' volume option. Because the
    value is handled as a single string, the encoding of the
    groupnode->gr_name fails when the value of the volume option is longer
    than 255 characters.

    In the error case, encoding the EXPORTS reply fails, and the waiting
    'showmount' command will not receive a reply and times out.

    Splitting the allowed entries and creating a groupnode for each one
    prevents the too long ->gr_name. This is following the structures for
    the EXPORTS reply in the MOUNT protocol more correctly as well. Note
    that the contents of ->gr_name is expected to be server dependent.

    This is backport of below mainline fix -
        http://review.gluster.org/#/c/14667/

    Change-Id: Ibbabad581cc9aa00feb80fbbc851a1b10b28383d
    BUG: 1343290
    Signed-off-by: Niels de Vos <ndevos at redhat.com>
    Signed-off-by: Bipin Kunal <bkunal at redhat.com>
    Reviewed-on: http://review.gluster.org/14698
    Smoke: Gluster Build System <jenkins at build.gluster.org>
    NetBSD-regression: NetBSD Build System <jenkins at build.gluster.org>
    CentOS-regression: Gluster Build System <jenkins at build.gluster.org>

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