summaryrefslogtreecommitdiff
path: root/pcr/openrc-net/nfs.initd
blob: e4239b70c470215d482b71e750d08c4cd6a227d2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
#!/sbin/runscript
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-fs/nfs-utils/files/nfs.initd,v 1.28 2014/06/20 06:21:22 vapier Exp $

extra_started_commands="reload"

# This variable is used for controlling whether or not to run exportfs -ua;
# see stop() for more information
restarting=no

# The binary locations
exportfs=/usr/sbin/exportfs
  mountd=/usr/sbin/rpc.mountd
    nfsd=/usr/sbin/rpc.nfsd
smnotify=/usr/sbin/sm-notify

depend() {
	local myneed=""
	# XXX: no way to detect NFSv4 is desired and so need rpc.idmapd
	myneed="${myneed} $(
		awk '!/^[[:space:]]*#/ {
			# clear the path to avoid spurious matches
			$1 = "";
			if ($0 ~ /[(][^)]*sec=(krb|spkm)[^)]*[)]/) {
				print "rpc.svcgssd"
				exit 0
			}
		}' /etc/exports /etc/exports.d/*.exports 2>/dev/null
	)"
	config /etc/exports /etc/exports.d/*.exports
	need portmap rpc.statd ${myneed} ${NFS_NEEDED_SERVICES}
	use ypbind net dns rpc.rquotad rpc.idmapd rpc.svcgssd
	after quota
}

mkdir_nfsdirs() {
	local d
	for d in v4recovery v4root ; do
		d="/var/lib/nfs/${d}"
		[ ! -d "${d}" ] && mkdir -p "${d}"
	done
}

waitfor_exportfs() {
	local pid=$1
	( sleep ${EXPORTFS_TIMEOUT:-30}; kill -9 ${pid} 2>/dev/null ) &
	wait $1
}

mount_nfsd() {
	if [ -e /proc/modules ] ; then
		# Make sure nfs support is loaded in the kernel #64709
		if ! grep -qs nfsd /proc/filesystems ; then
			modprobe -q nfsd
		fi
		# Restart idmapd if needed #220747
		if grep -qs nfsd /proc/modules ; then
			killall -q -HUP rpc.idmapd
		fi
	fi

	# This is the new "kernel 2.6 way" to handle the exports file
	if grep -qs nfsd /proc/filesystems ; then
		if ! mountinfo -q /proc/fs/nfsd ; then
			ebegin "Mounting nfsd filesystem in /proc"
			mount -t nfsd -o nodev,noexec,nosuid nfsd /proc/fs/nfsd
			eend $?
		fi

		local o
		for o in ${OPTS_NFSD} ; do
			echo "${o#*=}" > "/proc/fs/nfsd/${o%%=*}"
		done
	fi
}

start_it() {
	ebegin "Starting NFS $1"
	shift
	"$@"
	eend $?
	ret=$((ret + $?))
}
start() {
	mount_nfsd
	mkdir_nfsdirs

	# Exportfs likes to hang if networking isn't working.
	# If that's the case, then try to kill it so the
	# bootup process can continue.
	if grep -qs '^[[:space:]]*/' /etc/exports /etc/exports.d/*.exports ; then
		ebegin "Exporting NFS directories"
		${exportfs} -r &
		waitfor_exportfs $!
		eend $?
	fi

	local ret=0
	start_it mountd ${mountd} ${OPTS_RPC_MOUNTD}
	start_it daemon ${nfsd} ${OPTS_RPC_NFSD}
	[ -x "${smnotify}" ] && start_it smnotify ${smnotify} ${OPTS_SMNOTIFY}
	return ${ret}
}

stop() {
	local ret=0

	ebegin "Stopping NFS mountd"
	start-stop-daemon --stop --exec ${mountd}
	eend $?
	ret=$((ret + $?))

	# nfsd sets its process name to [nfsd] so don't look for $nfsd
	ebegin "Stopping NFS daemon"
	start-stop-daemon --stop --name nfsd --user root --signal 2
	eend $?
	ret=$((ret + $?))
	# in case things don't work out ... #228127
	rpc.nfsd 0

	# When restarting the NFS server, running "exportfs -ua" probably
	# isn't what the user wants.  Running it causes all entries listed
	# in xtab to be removed from the kernel export tables, and the
	# xtab file is cleared. This effectively shuts down all NFS
	# activity, leaving all clients holding stale NFS filehandles,
	# *even* when the NFS server has restarted.
	#
	# That's what you would want if you were shutting down the NFS
	# server for good, or for a long period of time, but not when the
	# NFS server will be running again in short order.  In this case,
	# then "exportfs -r" will reread the xtab, and all the current
	# clients will be able to resume NFS activity, *without* needing
	# to umount/(re)mount the filesystem.
	if [ "${restarting}" = no -o "${RC_CMD}" = "restart" ] ; then
		ebegin "Unexporting NFS directories"
		# Exportfs likes to hang if networking isn't working.
		# If that's the case, then try to kill it so the
		# shutdown process can continue.
		${exportfs} -ua &
		waitfor_exportfs $!
		eend $?
	fi

	return ${ret}
}

reload() {
	# Exportfs likes to hang if networking isn't working.
	# If that's the case, then try to kill it so the
	# bootup process can continue.
	ebegin "Reloading /etc/exports"
	${exportfs} -r 1>&2 &
	waitfor_exportfs $!
	eend $?
}

restart() {
	# See long comment in stop() regarding "restarting" and exportfs -ua
	restarting=yes
	svc_stop
	svc_start
}