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- nfsserver.init / sysconfig.nfs: allow NFSv3 service

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to be disabled so only NFSv4 can be used. bnc#598671
- nfs-v2-disable.patch: mountd support for above
- nfs.init: unmount bind mounts with '-l' to ensure they
     really unmount. bnc#598681

OBS-URL: https://build.opensuse.org/package/show/Base:System/nfs-utils?expand=0&rev=18
This commit is contained in:
Neil Brown 2010-05-09 23:55:36 +00:00 committed by Git OBS Bridge
parent 812efd18cf
commit ce3ce09113
5 changed files with 109 additions and 11 deletions
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9
nfs-utils.changes
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@ -1,3 +1,12 @@
-------------------------------------------------------------------
Sun May 9 23:07:24 UTC 2010 - nfbrown@novell.com
- nfsserver.init / sysconfig.nfs: allow NFSv3 service
to be disabled so only NFSv4 can be used. bnc#598671
- nfs-v2-disable.patch: mountd support for above
- nfs.init: unmount bind mounts with '-l' to ensure they
really unmount. bnc#598681
-------------------------------------------------------------------
Mon Apr 19 23:43:45 UTC 2010 - nfbrown@novell.com

4
nfs-utils.spec
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@ -27,7 +27,7 @@ BuildRequires: libevent
Url: http://nfs.sourceforge.net
Summary: Support Utilities for Kernel nfsd
Version: 1.2.1
Release: 4
Release: 5
Group: Productivity/Networking/NFS
License: GPLv2+
BuildRoot: %{_tmppath}/%{name}-%{version}-build
@ -50,6 +50,7 @@ Source12: start-statd
Patch0: nfs-utils-1.0.7-bind-syntax.patch
Patch1: warn-nfs-udp.patch
Patch2: nfs-utils-eperm-fallback.patch
Patch3: nfs-v2-disable.patch
%description
This package contains the NFS utilities. You can tune the number of
@ -129,6 +130,7 @@ Authors:
%patch0 -p1
%patch1 -p1
%patch2 -p1
%patch3 -p1
cp %{S:6} .
%build

66
nfs-v2-disable.patch Normal file
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@ -0,0 +1,66 @@
Subject: Allow mountd to not listen for RPC calls when v2/v3 disabled
References: 598671
Mountd listens on 2 different versions for NFSv2 (MOUNTv1 and MOUNTv2)
and one for NFSv3 (MOUNTv3)
When --no-nfs-version requests an NFS version to be disabled, the
code actually disabled the MOUNT version. This works is several cases,
but requires --no-nfs-version 1 to completely disable NFSv2, which
is wrong.
So if we do disable 1, 2, and 3. mountd complain and won't run, it
is not possible to run just v4 - i.e. not listening for MOUNT requests
at all (as v4 doesn't need them).
So change the handling of "--no-nfs-version 2" it disable MOUNTv1 as well as
MOUNTv2, and allow mountd to continue running as long as one of
NFSv2 NFSv3 NFSv4 is enabled.
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
index a0a1f2d..5373d81 100644
--- a/utils/mountd/mountd.c
+++ b/utils/mountd/mountd.c
@@ -80,10 +80,10 @@ static int nfs_version = -1;
static void
unregister_services (void)
{
- if (nfs_version & 0x1)
+ if (nfs_version & (0x1 << 1)) {
pmap_unset (MOUNTPROG, MOUNTVERS);
- if (nfs_version & (0x1 << 1))
pmap_unset (MOUNTPROG, MOUNTVERS_POSIX);
+ }
if (nfs_version & (0x1 << 2))
pmap_unset (MOUNTPROG, MOUNTVERS_NFSV3);
}
@@ -712,8 +712,10 @@ main(int argc, char **argv)
usage(argv [0], 1);
}
- /* No more arguments allowed. */
- if (optind != argc || !(nfs_version & 0x7))
+ /* No more arguments allowed.
+ * Require at least one valid version (2, 3, or 4)
+ */
+ if (optind != argc || !(nfs_version & 0xE))
usage(argv [0], 1);
if (chdir(state_dir)) {
@@ -761,12 +763,12 @@ main(int argc, char **argv)
if (new_cache)
cache_open();
- if (nfs_version & 0x1)
+ if (nfs_version & (0x1 << 1)) {
rpc_init("mountd", MOUNTPROG, MOUNTVERS,
mount_dispatch, port);
- if (nfs_version & (0x1 << 1))
rpc_init("mountd", MOUNTPROG, MOUNTVERS_POSIX,
mount_dispatch, port);
+ }
if (nfs_version & (0x1 << 2))
rpc_init("mountd", MOUNTPROG, MOUNTVERS_NFSV3,
mount_dispatch, port);

22
nfsserver.init
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@ -95,11 +95,11 @@ nfs4_bind_mounts() {
sed 's/^\([^[:space:]]*\).*bind=\([^,)]*\).*/\1 \2/;t;d' |
sort |
while read export dir; do
test -d $export || mkdir -p $export
test -d "$export" || mkdir -p "$export"
# Fortunately, mount ignores unknown
# options, so we have an easy way to
# tag our "magic" bind mounts
mount -o bind,nfsexp $dir $export
mount -o bind,nfsexp "$dir" "$export"
done
}
@ -109,7 +109,7 @@ nfs4_unbind_mounts() {
grep '\<nfsexp\>' |
sort -r -k2 |
while read src mountpoint crap; do
umount $mountpoint
umount -l "$mountpoint"
done
}
@ -171,11 +171,17 @@ case "$1" in
mount -t nfsd nfsd /proc/fs/nfsd
rc_status
fi
if [ "$NFS4_SUPPORT" = "yes" ]; then
VERSION_LIST="+2 +3 +4"
VERSION_PARAMS=""
VERSION_PARAMS=
if [ "$NFS3_SERVER_SUPPORT" != "no" ]; then
VERSION_LIST="+2 +3 "
else
VERSION_LIST="+2 +3 -4"
VERSION_LIST="-2 -3"
VERSION_PARAMS="--no-nfs-version 2 --no-nfs-version 3"
fi
if [ "$NFS4_SUPPORT" = "yes" ]; then
VERSION_LIST="$VERSION_LIST +4"
else
VERSION_LIST="$VERSION_LIST -4"
VERSION_PARAMS="--no-nfs-version 4"
fi
if [ " `cat /proc/fs/nfsd/threads`" = " 0" ]; then
@ -211,11 +217,13 @@ case "$1" in
rc_exit
}
# rpc.statd
if [ "$NFS3_SERVER_SUPPORT" != "no" ]; then
echo -n " statd"
startproc /usr/sbin/rpc.statd --no-notify $STATD_OPTIONS || {
rc_status -v
rc_exit
}
fi
# rpc.nfsd
echo -n " nfsd"
$NFSD_BIN $PARAMS $VERSION_PARAMS || {

13
sysconfig.nfs
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@ -30,6 +30,19 @@ MOUNTD_PORT=""
#
NFS_SECURITY_GSS="no"
## Path: Network/File systems/NFS server
## Description: NFSv3 server support
## Type: yesno
## Default: yes
## ServiceRestart: nfsserver
#
# Enable NFSv3 server support (yes/no)
# This causes the NFS server to respond to
# NFSv2 and NFSv3 requests. Only disable this
# if you want to ensure only NFSv4 is used.
#
NFS3_SERVER_SUPPORT="yes"
## Path: Network/File systems/NFS server
## Description: NFSv4 protocol support
## Type: yesno