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From:   Trond Myklebust <trondmy@gmail.com>
To:     SteveD@redhat.com
Cc:     linux-nfs@vger.kernel.org
Subject: [RFC PATCH v2 0/7] Add a root_dir option to nfs.conf
Date:   Tue, 21 May 2019 08:46:54 -0400
Message-Id: <20190521124701.61849-1-trond.myklebust@hammerspace.com>
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Sender: linux-nfs-owner@vger.kernel.org
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The following patchset adds support for the 'root_dir' configuration
option for nfsd in nfs.conf. If a user sets this option to a valid
directory path, then nfsd will act as if it is confined to a chroot
jail based on that directory. All paths in /etc/exporfs and from
exportfs are then resolved relative to that directory.


Trond Myklebust (7):
  mountd: Ensure we don't share cache file descriptors among processes.
  Add a simple workqueue mechanism
  Add utilities for resolving nfsd paths and stat()ing them
  Add a helper to return the real path given an export entry
  Add helpers to read/write to a file through the chrooted thread
  Add support for the nfsd rootdir configuration option to rpc.mountd
  Add support for the nfsd root directory to exportfs

 aclocal/libpthread.m4       |  13 +-
 configure.ac                |   6 +-
 nfs.conf                    |   1 +
 support/export/export.c     |  24 +++
 support/include/Makefile.am |   2 +
 support/include/exportfs.h  |   1 +
 support/include/nfsd_path.h |  17 ++
 support/include/nfslib.h    |   1 +
 support/include/workqueue.h |  22 +++
 support/misc/Makefile.am    |   3 +-
 support/misc/mountpoint.c   |   5 +-
 support/misc/nfsd_path.c    | 175 +++++++++++++++++++++
 support/misc/workqueue.c    | 306 ++++++++++++++++++++++++++++++++++++
 support/nfs/exports.c       |   4 +
 systemd/nfs.conf.man        |   3 +-
 utils/exportfs/Makefile.am  |   2 +-
 utils/exportfs/exportfs.c   |  32 +++-
 utils/mountd/Makefile.am    |   3 +-
 utils/mountd/cache.c        |  79 +++++++---
 utils/mountd/mountd.c       |  13 +-
 utils/nfsd/nfsd.man         |   6 +
 21 files changed, 676 insertions(+), 42 deletions(-)
 create mode 100644 support/include/nfsd_path.h
 create mode 100644 support/include/workqueue.h
 create mode 100644 support/misc/nfsd_path.c
 create mode 100644 support/misc/workqueue.c

-- 
2.21.0