mirror of
https://github.com/openvswitch/ovs
synced 2025-10-25 15:07:05 +00:00
5f906046c2
Earlier, the /etc/openvswitch directory would get installed as part of the init script's start sequence. However, as newer packages are added, including some that create files in this directory during their init script sequences, a race condition may occur. This change ensures that the directory /etc/openvswitch is created even before the init scripts execute. Thus, the race condition is avoided.
343 lines
9.5 KiB
Bash
Executable File
343 lines
9.5 KiB
Bash
Executable File
#! /bin/sh
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#
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# /etc/init.d/openvswitch-switch
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#
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# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
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# Modified for Debian by Ian Murdock <imurdock@gnu.ai.mit.edu>.
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# Further changes by Javier Fernandez-Sanguino <jfs@debian.org>
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# Modified for openvswitch-switch.
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#
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# Version: @(#)skeleton 1.9 26-Feb-2001 miquels@cistron.nl
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#
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### BEGIN INIT INFO
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# Provides: openvswitch-switch
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# Required-Start: $network $named $remote_fs $syslog
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# Required-Stop: $remote_fs
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Open vSwitch switch
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### END INIT INFO
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PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
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ovs_vswitchd=/usr/sbin/ovs-vswitchd
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ovsdb_server=/usr/bin/ovsdb-server
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(test -x $ovsdb_server && test -x $ovs_vswitchd) || exit 0
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DODTIME=1 # Time to wait for the server to die, in seconds
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# If this value is set too low you might not
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# let some servers to die gracefully and
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# 'restart' will not work
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# Include ovs-openflowd defaults if available
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unset OVSDB_SERVER_OPTS
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unset OVS_VSWITCHD_OPTS
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unset CORE_LIMIT
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unset ENABLE_MONITOR
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default=/etc/default/openvswitch-switch
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if [ -f $default ] ; then
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. $default
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fi
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: ${ENABLE_MONITOR:=y}
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set -e
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# running_pid pid name
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#
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# Check if 'pid' is a process named 'name'
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running_pid()
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{
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local pid=$1 name=$2
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[ -z "$pid" ] && return 1
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[ ! -d /proc/$pid ] && return 1
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cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1`
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# Is this the expected child?
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case $cmd in
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$name|*/$name)
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return 0
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;;
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*)
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return 1
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;;
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esac
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}
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# running name
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#
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# Checks for a running process named 'name' by looking for a pidfile
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# named /var/run/openvswitch/${name}.pid
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running()
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{
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local name=$1
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local pidfile=/var/run/openvswitch/${name}.pid
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# No pidfile, probably no daemon present
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[ ! -f "$pidfile" ] && return 1
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# Obtain the pid and check it against the binary name
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pid=`cat $pidfile`
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running_pid $pid $name || return 1
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return 0
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}
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# force_stop name
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#
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# Checks for a running process named 'name', by looking for a pidfile
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# named /var/run/openvswitch/${name}.pid, and then kills it and waits
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# for it to die.
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force_stop() {
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local name=$1
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local pidfile=/var/run/openvswitch/${name}.pid
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[ ! -f "$pidfile" ] && return
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if running $name; then
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kill $pid
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[ -n "$DODTIME" ] && sleep "$DODTIME"
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if running $name; then
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kill -KILL $pid
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[ -n "$DODTIME" ] && sleep "$DODTIME"
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if running $name; then
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echo "Cannot kill $name (pid=$pid)!"
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exit 1
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fi
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fi
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fi
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rm -f $pidfile
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return 0
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}
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must_succeed() {
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echo -n "$1: "
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shift
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if "$@"; then
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echo "success."
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else
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echo " ERROR."
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exit 1
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fi
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}
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check_op() {
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echo -n "$1: "
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shift
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if "$@"; then
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echo "success."
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else
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echo " ERROR."
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fi
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}
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# is_module_loaded module
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#
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# Returns 0 if 'module' is loaded, 1 otherwise.
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is_module_loaded() {
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local module=$1
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grep -q "^$module " /proc/modules
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}
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# load_module module
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#
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# Loads 'module' into the running kernel, if it is not already loaded.
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load_module() {
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local module=$1
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echo -n "Loading $module: "
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if is_module_loaded $module; then
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echo "already loaded, nothing to do."
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elif modprobe $module; then
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echo "success."
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else
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echo "ERROR."
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echo "$module has probably not been built for this kernel."
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if ! test -d /usr/share/doc/openvswitch-datapath-source; then
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echo "Install the openvswitch-datapath-source package, then read"
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echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
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else
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echo "For instructions, read"
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echo "/usr/share/doc/openvswitch-datapath-source/README.Debian"
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fi
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exit 0
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fi
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}
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# unload_module module
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#
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# Unloads 'module' from the running kernel, if it is loaded.
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unload_module() {
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local module=$1
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echo -n "Unloading $module: "
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if is_module_loaded $module; then
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if rmmod $module; then
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echo "success."
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else
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echo "ERROR."
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exit 1
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fi
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else
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echo "not loaded, nothing to do."
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fi
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}
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unload_modules() {
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if is_module_loaded openvswitch_mod; then
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for dp in $(ovs-dpctl dump-dps); do
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echo -n "Deleting datapath $dp: "
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if ovs-dpctl del-dp $dp; then
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echo "success."
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else
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echo "ERROR."
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fi
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done
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fi
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unload_module openvswitch_mod
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}
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case "$1" in
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start)
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load_module openvswitch_mod
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if test -n "$CORE_LIMIT"; then
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check_op "Setting core limit to $CORE_LIMIT" ulimit -c "$CORE_LIMIT"
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fi
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# Create an empty configuration database if it doesn't exist.
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if test ! -e /etc/openvswitch/conf.db; then
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# Create configuration database.
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ovsdb-tool -vANY:console:emer \
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create /etc/openvswitch/conf.db \
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/usr/share/openvswitch/vswitch.ovsschema
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elif ! running ovsdb-server; then
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# Upgrade or downgrade schema and compact database.
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ovsdb-tool -vANY:console:emer \
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convert /etc/openvswitch/conf.db \
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/usr/share/openvswitch/vswitch.ovsschema
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fi
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if test "$ENABLE_MONITOR" = y; then
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monitor_opt=--monitor
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else
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monitor_opt=
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fi
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if [ ! -d /var/run/openvswitch ]; then
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install -d -m 755 -o root -g root /var/run/openvswitch
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fi
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if [ ! -d /var/log/openvswitch ]; then
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install -d -m 755 -o root -g root /var/log/openvswitch
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fi
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if [ ! -d /var/log/openvswitch/cores ]; then
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install -d -m 755 -o root -g root /var/log/openvswitch/cores
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fi
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# Start ovsdb-server.
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set --
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set -- "$@" /etc/openvswitch/conf.db
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set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
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set -- "$@" --log-file=/var/log/openvswitch/ovsdb-server.log
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set -- "$@" --detach --no-chdir --pidfile $monitor_opt
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set -- "$@" --remote punix:/var/run/openvswitch/db.sock
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set -- "$@" --remote db:Open_vSwitch,managers
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set -- "$@" --private-key=db:SSL,private_key
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set -- "$@" --certificate=db:SSL,certificate
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set -- "$@" --bootstrap-ca-cert=db:SSL,ca_cert
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set -- "$@" $OVSDB_SERVER_OPTS
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echo -n "Starting ovsdb-server: "
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start-stop-daemon --start --quiet --oknodo \
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--pidfile /var/run/openvswitch/ovsdb-server.pid \
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--chdir /var/log/openvswitch/cores \
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--exec $ovsdb_server -- "$@"
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if running ovsdb-server; then
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echo "ovsdb-server."
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else
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echo " ERROR."
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fi
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ovs-vsctl --no-wait --timeout=5 init
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# Start ovs-vswitchd.
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set --
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set -- "$@" --verbose=ANY:console:emer --verbose=ANY:syslog:err
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set -- "$@" --log-file=/var/log/openvswitch/ovs-vswitchd.log
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set -- "$@" --detach --no-chdir --pidfile $monitor_opt
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set -- "$@" unix:/var/run/openvswitch/db.sock
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set -- "$@" $OVS_VSWITCHD_OPTS
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echo -n "Starting ovs-vswitchd: "
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start-stop-daemon --start --quiet --oknodo \
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--pidfile /var/run/openvswitch/ovs-vswitchd.pid \
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--chdir /var/log/openvswitch/cores \
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--exec $ovs_vswitchd -- "$@"
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if running ovs-vswitchd; then
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echo "ovs-vswitchd."
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else
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echo " ERROR."
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fi
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;;
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stop)
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echo -n "Stopping ovs-vswitchd: "
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start-stop-daemon --stop --quiet --oknodo --retry 5 \
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--pidfile /var/run/openvswitch/ovs-vswitchd.pid \
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--chdir /var/log/openvswitch/cores \
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--exec $ovs_vswitchd
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echo "ovs-vswitchd."
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echo -n "Stopping ovsdb-server: "
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start-stop-daemon --stop --quiet --oknodo --retry 5 \
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--pidfile /var/run/openvswitch/ovsdb-server.pid \
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--chdir /var/log/openvswitch/cores \
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--exec $ovsdb_server
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echo "ovsdb-server."
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;;
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force-stop)
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echo -n "Forcefully stopping ovs-vswitchd: "
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force_stop ovs-vswitchd
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if ! running ovs-vswitchd; then
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echo "ovs-vswitchd."
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else
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echo " ERROR."
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fi
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echo -n "Forcefully stopping ovsdb-server: "
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force_stop ovsdb-server
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if ! running ovsdb-server; then
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echo "ovsdb-server."
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else
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echo " ERROR."
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fi
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;;
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unload)
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unload_modules
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;;
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reload)
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;;
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force-reload)
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# Nothing to do, since ovs-vswitchd automatically reloads
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# whenever its configuration changes, and ovsdb-server doesn't
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# have anything to reload.
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;;
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restart)
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$0 stop || true
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$0 start
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;;
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status)
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for daemon in ovs-vswitchd ovsdb-server; do
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echo -n "$daemon is "
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if running $daemon; then
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echo "running"
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else
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echo " not running."
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exit 1
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fi
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done
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;;
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*)
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N=/etc/init.d/openvswitch-switch
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echo "Usage: $N {start|stop|restart|force-reload|status|force-stop|unload}" >&2
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exit 1
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;;
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esac
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exit 0
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