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This patch is essentially the same as the previous version, but has
been respun to fix up some merge conflicts with some of Chuck's
recent changes.
When we first added tirpc support, we took a "big hammer" approach, and
had it add libtirpc to $LIBS. That had the effect of making it so that
that library was linked into every binary. That's unnecessary, and
wasteful with memory.
Don't let AC_CHECK_LIB add -ltirpc to $LIBS. Instead, have the autoconf
tests set $(LIBTIRPC) in the makefiles, and have the programs that
need it explicitly include that library. In the event that we're not
using libtirpc, then set $LIBTIRPC to a blank string.
This necessitates a change to the bindresvport_sa check too. Since that
library is no longer included in $LIBS, we need to convert that check
to use AC_CHECK_LIB instead of AC_CHECK_FUNCS.
This patch also fixes a subtle bug. If the library was usable, but the
includes were not, the test would set $enable_tirpc to "no", but
HAVE_LIBTIRPC would still be true. That configuration would likely
fail to build.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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To support FedFS and NFS junctions without introducing additional
build-time or run-time dependencies on nfs-utils, the community has
chosen to use a dynamically loadable library to handle junction
resolution.
There is one plug-in library for mountd that will handle any NFS-
related junction type. Currently there are two types:
o nfs-basic locally stored file set location data, and
o nfs-fedfs file set location data stored on an LDAP server
mountd's support for this library is enabled at build time by the
presence of the junction API definition header:
/usr/include/nfs-plugin.h
If this header is not found on the build system, mountd will build
without junction support, and will operate as before.
Note that mountd does not cache junction resolution results. NFSD
already caches these results in its exports cache. Thus each time
NFSD calls up to mountd, it is, in essence, requesting a fresh
junction resolution operation, not a cached response.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Steve Dickson <steved@redhat.com>
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Create v4root exports for each directory that is a parent of an explicit
export. Give each the minimal security required to traverse to any of
its children.
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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Extend exportfs interface to pass fslocations info into the kernel,
using syntax modelled after AIX. Adds "refer=" and "replicas="
options to /etc/exports to enable use of the kernel fslocation code.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Kevin Coffman <kwc@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
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This introduces a new dependancy on libblkid.
If a filesystem being exported has a UUID that libblkid
can extract, then that is passed to the kernel for use
in identifying the filesystem in filehandles.
This means that 'fsid=' is no longer needed to work around the
problem of device numbers changing.
fsid= is still needed for fielsystems that have no device,
and can now be given 16byute uuid instead of just a 32bit one.
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