7 files changed, 311 insertions, 0 deletions

diff --git a/share/examples/Makefile b/share/examples/Makefile
index 315eb9135197..99d92c0d99a0 100644
--- a/share/examples/Makefile
+++ b/share/examples/Makefile
@@ -13,6 +13,7 @@ LDIRS=	BSD_daemon \
 	drivers \
 	etc \
 	find_interface \
+	hast \
 	ibcs2 \
 	ipfw \
 	kld \
@@ -69,6 +70,11 @@ XFILES=	BSD_daemon/FreeBSD.pfa \
 	find_interface/Makefile \
 	find_interface/README \
 	find_interface/find_interface.c \
+	hast/ucarp.sh \
+	hast/ucarp_down.sh \
+	hast/ucarp_up.sh \
+	hast/vip-down.sh \
+	hast/vip-up.sh \
 	ibcs2/README \
 	ibcs2/hello.uu \
 	ipfw/change_rules.sh \
diff --git a/share/examples/hast/ucarp.sh b/share/examples/hast/ucarp.sh
new file mode 100755
index 000000000000..6a02c89fe977
--- /dev/null
+++ b/share/examples/hast/ucarp.sh
@@ -0,0 +1,69 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 The FreeBSD Foundation
+# All rights reserved.
+#
+# This software was developed by Pawel Jakub Dawidek under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+
+# Shared IP address, unused for now.
+addr="10.99.0.3"
+# Password for UCARP communication.
+pass="password"
+# First node IP and interface for UCARP communication.
+nodea_srcip="10.99.0.1"
+nodea_ifnet="bge0"
+# Second node IP and interface for UCARP communication.
+nodeb_srcip="10.99.0.2"
+nodeb_ifnet="em3"
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+
+vhid="1"
+upscript="/root/hast/sbin/hastd/vip-up.sh"
+downscript="/root/hast/sbin/hastd/vip-down.sh"
+
+ifconfig "${nodea_ifnet}" 2>/dev/null | grep -q "inet ${nodea_srcip} "
+if [ $? -eq 0 ]; then
+	srcip="${nodea_srcip}"
+	ifnet="${nodea_ifnet}"
+	node="node A"
+fi
+ifconfig "${nodeb_ifnet}" 2>/dev/null | grep -q "inet ${nodeb_srcip} "
+if [ $? -eq 0 ]; then
+	if [ -n "${srcip}" -o -n "${ifnet}" ]; then
+		echo "Unable to determine which node is this (both match)." >/dev/stderr
+		exit 1
+	fi
+	srcip="${nodeb_srcip}"
+	ifnet="${nodeb_ifnet}"
+	node="node B"
+fi
+if [ -z "${srcip}" -o -z "${ifnet}" ]; then
+	echo "Unable to determine which node is this (none match)." >/dev/stderr
+	exit 1
+fi
+ucarp -i ${ifnet} -s ${srcip} -v ${vhid} -a ${addr} -p ${pass} -u "${upscript}" -d "${downscript}"
diff --git a/share/examples/hast/ucarp_down.sh b/share/examples/hast/ucarp_down.sh
new file mode 100755
index 000000000000..a5b34281e3b0
--- /dev/null
+++ b/share/examples/hast/ucarp_down.sh
@@ -0,0 +1,98 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 The FreeBSD Foundation
+# All rights reserved.
+#
+# This software was developed by Pawel Jakub Dawidek under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+
+# Resource name as defined in /etc/hast.conf.
+resource="test"
+# Supported file system types: UFS, ZFS
+fstype="UFS"
+# ZFS pool name. Required only when fstype == ZFS.
+pool="test"
+# File system mount point. Required only when fstype == UFS.
+mountpoint="/mnt/test"
+# Name of HAST provider as defined in /etc/hast.conf.
+# Required only when fstype == UFS.
+device="/dev/hast/${resource}"
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+
+# KIll UP script if it still runs in the background.
+sig="TERM"
+for i in `jot 30`; do
+	pgid=`pgrep -f ucarp_up.sh | head -1`
+	[ -n "${pgid}" ] || break
+	kill -${sig} -- -${pgid}
+	sig="KILL"
+	sleep 1
+done
+if [ -n "${pgid}" ]; then
+	logger -p local0.error -t hast "UCARP UP process for resource ${resource} is still running after 30 seconds."
+	exit 1
+fi
+logger -p local0.debug -t hast "UCARP UP is not running."
+
+case "${fstype}" in
+UFS)
+	mount | egrep -q "^${device} on "
+	if [ $? -eq 0 ]; then
+		# Forcibly unmount file system.
+		out=`umount -f "${mountpoint}" 2>&1`
+		if [ $? -ne 0 ]; then
+			logger -p local0.error -t hast "Unable to unmount file system for resource ${resource}: ${out}."
+			exit 1
+		fi
+		logger -p local0.debug -t hast "File system for resource ${resource} unmounted."
+	fi
+	;;
+ZFS)
+	zpool list | egrep -q "^${pool} "
+	if [ $? -eq 0 ]; then
+		# Forcibly export file pool.
+		out=`zpool export -f "${pool}" 2>&1`
+		if [ $? -ne 0 ]; then
+			logger -p local0.error -t hast "Unable to export pool for resource ${resource}: ${out}."
+			exit 1
+		fi
+		logger -p local0.debug -t hast "ZFS pool for resource ${resource} exported."
+	fi
+	;;
+esac
+
+# Change role to secondary for our resource.
+out=`hastctl role secondary "${resource}" 2>&1`
+if [ $? -ne 0 ]; then
+	logger -p local0.error -t hast "Unable to change to role to secondary for resource ${resource}: ${out}."
+	exit 1
+fi
+logger -p local0.debug -t hast "Role for resource ${resource} changed to secondary."
+
+logger -p local0.info -t hast "Successfully switched to secondary for resource ${resource}."
+
+exit 0
diff --git a/share/examples/hast/ucarp_up.sh b/share/examples/hast/ucarp_up.sh
new file mode 100755
index 000000000000..9e56040bebdc
--- /dev/null
+++ b/share/examples/hast/ucarp_up.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 The FreeBSD Foundation
+# All rights reserved.
+#
+# This software was developed by Pawel Jakub Dawidek under sponsorship from
+# the FreeBSD Foundation.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# $FreeBSD$
+
+# Resource name as defined in /etc/hast.conf.
+resource="test"
+# Supported file system types: UFS, ZFS
+fstype="UFS"
+# ZFS pool name. Required only when fstype == ZFS.
+pool="test"
+# File system mount point. Required only when fstype == UFS.
+mountpoint="/mnt/test"
+# Name of HAST provider as defined in /etc/hast.conf.
+device="/dev/hast/${resource}"
+
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+
+# If there is secondary worker process, it means that remote primary process is
+# still running. We have to wait for it to terminate.
+for i in `jot 30`; do
+	pgrep -f "hastd: ${resource} \(secondary\)" >/dev/null 2>&1 || break
+	sleep 1
+done
+if pgrep -f "hastd: ${resource} \(secondary\)" >/dev/null 2>&1; then
+	logger -p local0.error -t hast "Secondary process for resource ${resource} is still running after 30 seconds."
+	exit 1
+fi
+logger -p local0.debug -t hast "Secondary process in not running."
+
+# Change role to primary for our resource.
+out=`hastctl role primary "${resource}" 2>&1`
+if [ $? -ne 0 ]; then
+	logger -p local0.error -t hast "Unable to change to role to primary for resource ${resource}: ${out}."
+	exit 1
+fi
+# Wait few seconds for provider to appear.
+for i in `jot 50`; do
+	[ -c "${device}" ] && break
+	sleep 0.1
+done
+if [ ! -c "${device}" ]; then
+	logger -p local0.error -t hast "Device ${device} didn't appear."
+	exit 1
+fi
+logger -p local0.debug -t hast "Role for resource ${resource} changed to primary."
+
+case "${fstype}" in
+UFS)
+	# Check the file system.
+	fsck -y -t ufs "${device}" >/dev/null 2>&1
+	if [ $? -ne 0 ]; then
+		logger -p local0.error -t hast "File system check for resource ${resource} failed."
+		exit 1
+	fi
+	logger -p local0.debug -t hast "File system check for resource ${resource} finished."
+	# Mount the file system.
+	out=`mount -t ufs "${device}" "${mountpoint}" 2>&1`
+	if [ $? -ne 0 ]; then
+		logger -p local0.error -t hast "File system mount for resource ${resource} failed: ${out}."
+		exit 1
+	fi
+	logger -p local0.debug -t hast "File system for resource ${resource} mounted."
+	;;
+ZFS)
+	# Import ZFS pool. Do it forcibly as it remembers hostid of
+	# the other cluster node.
+	out=`zpool import -f "${pool}" 2>&1`
+	if [ $? -ne 0 ]; then
+		logger -p local0.error -t hast "ZFS pool import for resource ${resource} failed: ${out}."
+		exit 1
+	fi
+	logger -p local0.debug -t hast "ZFS pool for resource ${resource} imported."
+	;;
+esac
+
+logger -p local0.info -t hast "Successfully switched to primary for resource ${resource}."
+
+exit 0
diff --git a/share/examples/hast/vip-down.sh b/share/examples/hast/vip-down.sh
new file mode 100755
index 000000000000..5e47609d9e9e
--- /dev/null
+++ b/share/examples/hast/vip-down.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+# $FreeBSD$
+
+/root/hast/sbin/hastd/ucarp_down.sh
+exit 0
diff --git a/share/examples/hast/vip-up.sh b/share/examples/hast/vip-up.sh
new file mode 100755
index 000000000000..61dabe9c3daa
--- /dev/null
+++ b/share/examples/hast/vip-up.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# $FreeBSD$
+
+set -m
+/root/hast/sbin/hastd/ucarp_up.sh &
+set +m
+exit 0
diff --git a/share/man/man5/rc.conf.5 b/share/man/man5/rc.conf.5
index 5c55b9097bdb..07f2fb816655 100644
--- a/share/man/man5/rc.conf.5
+++ b/share/man/man5/rc.conf.5
@@ -1645,6 +1645,27 @@ is set to
 .Dq Li YES ,
 these are the flags to pass to
 .Xr inetd 8 .
+.It Va hastd_enable
+.Pq Vt bool
+If set to
+.Dq Li YES ,
+run the
+.Xr hastd 8
+daemon.
+.It Va hastd_program
+.Pq Vt str
+Path to
+.Xr hastd 8
+(default
+.Pa /sbin/hastd ) .
+.It Va hastd_flags
+.Pq Vt str
+If
+.Va hastd_enable
+is set to
+.Dq Li YES ,
+these are the flags to pass to
+.Xr hastd 8 .
 .It Va named_enable
 .Pq Vt bool
 If set to