[0/6,V2] exportd: The NFSv4 only mounting daemon.

Message

Steve Dickson Feb. 17, 2021, 7:42 p.m. UTC

exportd is a daemon that will listen for only v4 mount upcalls.
The idea is to allow distros to build a v4 only package
which will have a much smaller footprint than the
entire nfs-utils package.

exportd uses no RPC code, which means none of the 
code or arguments that deal with v3 was ported, 
this again, makes the footprint much smaller. 

The following options were ported:
    * multiple threads
    * state-directory-path option
    * junction support (not tested)

The rest of the mountd options were v3 only options.

V2:
  * Added two systemd services: nfsv4-exportd and nfsv4-server
  * nfsv4-server starts rpc.nfsd -N 3, so nfs.conf mod not needed.

Steve Dickson (6):
  exportd: the initial shell of the v4 export support
  exportd: Moved cache upcalls routines into libexport.a
  exportd: multiple threads
  exportd/exportfs: Add the state-directory-path option
  exportd: Enabled junction support
  exportd: systemd unit files

 .gitignore                                |   1 +
 configure.ac                              |   1 +
 nfs.conf                                  |   4 +
 support/export/Makefile.am                |   3 +-
 {utils/mountd => support/export}/auth.c   |   4 +-
 {utils/mountd => support/export}/cache.c  |  46 +++-
 support/export/export.h                   |  34 +++
 {utils/mountd => support/export}/fsloc.c  |   0
 {utils/mountd => support/export}/v4root.c |   0
 {utils/mountd => support/include}/fsloc.h |   0
 systemd/nfs.conf.man                      |  10 +
 systemd/nfsv4-exportd.service             |  12 +
 systemd/nfsv4-server.service              |  31 +++
 utils/Makefile.am                         |   1 +
 utils/exportd/Makefile.am                 |  63 +++++
 utils/exportd/exportd.c                   | 276 ++++++++++++++++++++++
 utils/exportd/exportd.man                 |  81 +++++++
 utils/exportfs/exportfs.c                 |  25 +-
 utils/exportfs/exportfs.man               |   7 +-
 utils/mountd/Makefile.am                  |   5 +-
 20 files changed, 586 insertions(+), 18 deletions(-)
 rename {utils/mountd => support/export}/auth.c (99%)
 rename {utils/mountd => support/export}/cache.c (98%)
 create mode 100644 support/export/export.h
 rename {utils/mountd => support/export}/fsloc.c (100%)
 rename {utils/mountd => support/export}/v4root.c (100%)
 rename {utils/mountd => support/include}/fsloc.h (100%)
 create mode 100644 systemd/nfsv4-exportd.service
 create mode 100644 systemd/nfsv4-server.service
 create mode 100644 utils/exportd/Makefile.am
 create mode 100644 utils/exportd/exportd.c
 create mode 100644 utils/exportd/exportd.man