diff options
Diffstat (limited to 'xenserver/etc_init.d_vswitch')
| -rwxr-xr-x | xenserver/etc_init.d_vswitch | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/xenserver/etc_init.d_vswitch b/xenserver/etc_init.d_vswitch new file mode 100755 index 000000000..25aca61f9 --- /dev/null +++ b/xenserver/etc_init.d_vswitch @@ -0,0 +1,302 @@ +#!/bin/bash +# +# vswitch +# +# chkconfig: 2345 09 91 +# description: Manage vswitch kernel modules and user-space daemon + +# Copyright (C) 2009 Nicira Networks, Inc. +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +. /etc/init.d/functions + +test -e /etc/sysconfig/vswitch && . /etc/sysconfig/vswitch + +# General config variables in /etc/sysconfig/vswitch +VSWITCH_BASE="${VSWITCH_BASE:-/root/vswitch}" +ENABLE_BRCOMPAT="${ENABLE_BRCOMPAT:-y}" +ENABLE_FAKE_PROC_NET="${ENABLE_FAKE_PROC_NET:-y}" +FORCE_COREFILES="${FORCE_COREFILES:-n}" +COREFILE_PATTERN="${COREFILE_PATTERN:-/var/log/%e-%t}" + +# Config variables specific to ovs-vswitchd +VSWITCHD_CONF="${VSWITCHD_CONF:-/etc/ovs-vswitchd.conf}" +VSWITCHD_PIDFILE="${VSWITCHD_PIDFILE:-/var/run/ovs-vswitchd.pid}" +VSWITCHD_PRIORITY="${VSWITCHD_PRIORITY:--5}" +VSWITCHD_LOGFILE="${VSWITCHD_LOGFILE:-/var/log/ovs-vswitchd.log}" +VSWITCHD_FILE_LOGLEVEL="${VSWITCHD_FILE_LOGLEVEL:-}" +VSWITCHD_SYSLOG_LOGLEVEL="${VSWITCHD_SYSLOG_LOGLEVEL:-WARN}" +VSWITCHD_MEMLEAK_LOGFILE="${VSWITCHD_MEMLEAK_LOGFILE:-}" +VSWITCHD_STRACE_LOG="${VSWITCHD_STRACE_LOG:-}" +VSWITCHD_STRACE_OPT="${VSWITCHD_STRACE_OPT:-}" +VSWITCHD_VALGRIND_LOG="${VSWITCHD_VALGRIND_LOG:-}" +VSWITCHD_VALGRIND_OPT="${VSWITCHD_VALGRIND_OPT:-}" + +# Config variables specific to ovs-brcompatd +BRCOMPATD_PIDFILE="${BRCOMPATD_PIDFILE:-/var/run/ovs-brcompatd.pid}" +BRCOMPATD_PRIORITY="${BRCOMPATD_PRIORITY:--5}" +BRCOMPATD_LOGFILE="${BRCOMPATD_LOGFILE:-/var/log/ovs-brcompatd.log}" +BRCOMPATD_FILE_LOGLEVEL="${BRCOMPATD_FILE_LOGLEVEL:-}" +BRCOMPATD_SYSLOG_LOGLEVEL="${BRCOMPATD_SYSLOG_LOGLEVEL:-WARN}" +BRCOMPATD_MEMLEAK_LOGFILE="${BRCOMPATD_MEMLEAK_LOGFILE:-}" +BRCOMPATD_STRACE_LOG="${BRCOMPATD_STRACE_LOG:-}" +BRCOMPATD_STRACE_OPT="${BRCOMPATD_STRACE_OPT:-}" +BRCOMPATD_VALGRIND_LOG="${BRCOMPATD_VALGRIND_LOG:-}" +BRCOMPATD_VALGRIND_OPT="${BRCOMPATD_VALGRIND_OPT:-}" + + + + +# Full paths to executables & modules +vswitchd="$VSWITCH_BASE/sbin/ovs-vswitchd" +brcompatd="$VSWITCH_BASE/sbin/ovs-brcompatd" +dpctl="$VSWITCH_BASE/bin/ovs-dpctl" +appctl="$VSWITCH_BASE/bin/ovs-appctl" +ofctl="$VSWITCH_BASE/bin/ovs-ofctl" + + +if [ "$ENABLE_FAKE_PROC_NET" == "y" ]; then + if [ "$ENABLE_BRCOMPAT" != "y" ]; then + warning "FAKE_PROC_NET required BRCOMPAT which was disabled. Force enabling." + ENABLE_BRCOMPAT="y" + fi +fi + +function dp_list { + "$dpctl" show | grep '^dp[0-9]\+:' | cut -d':' -f 1 +} + +function turn_on_corefiles { + # This has global effect so should not normally be used... + ulimit -c unlimited + echo "$COREFILE_PATTERN" > /proc/sys/kernel/core_pattern +} + +function remove_all_dp { + for dp in $(dp_list); do + action "Removing datapath: $dp" "$dpctl" del-dp "$dp" + done +} + +function insert_modules_if_required { + if ! lsmod | grep -q "openvswitch_mod"; then + action "Inserting llc module" modprobe llc + action "Inserting openvswitch module" insmod $VSWITCH_BASE/kernel_modules/openvswitch_mod.ko + fi + if [ -n "$BRCOMPATD_PIDFILE" ] && ! lsmod | grep -q "brcompat_mod"; then + action "Inserting brcompat module" insmod $VSWITCH_BASE/kernel_modules/brcompat_mod.ko + fi +} + +function remove_modules { + if lsmod | grep -q "brcompat_mod"; then + action "Removing brcompat module" rmmod brcompat_mod.ko + fi + if lsmod | grep -q "openvswitch_mod"; then + action "Removing openvswitch module" rmmod openvswitch_mod.ko + fi +} + +function reload_vswitchd { + if [ -f "$VSWITCHD_PIDFILE" ]; then + "$appctl" \ + --target=ovs-vswitchd.$(cat "$VSWITCHD_PIDFILE").ctl \ + --execute=vswitchd/reload + fi +} + +function start_vswitchd { + local syslog_opt="-vANY:SYSLOG:${VSWITCHD_SYSLOG_LOGLEVEL}" + local logfile_file_opt="" + local logfile_level_opt="" + if [ -n "$VSWITCHD_FILE_LOGLEVEL" ]; then + logfile_level_opt="-vANY:FILE:${VSWITCHD_FILE_LOGLEVEL}" + logfile_file_opt="--log-file=$VSWITCHD_LOGFILE" + fi + local leak_opt="" + if [ -n "$VSWITCHD_MEMLEAK_LOGFILE" ]; then + leak_opt="--check-leaks=$VSWITCHD_MEMLEAK_LOGFILE" + if [ -e "$VSWITCHD_MEMLEAK_LOGFILE" ]; then + mv "$VSWITCHD_MEMLEAK_LOGFILE" "$VSWITCHD_MEMLEAK_LOGFILE.prev" + fi + fi + local strace_opt="" + local daemonize="y" + if [ -n "$VSWITCHD_STRACE_LOG" ] && [ -n "$VSWITCHD_VALGRIND_LOG" ]; then + printf "Can not start with both VALGRIND and STRACE\n" + exit 1 + fi + if [ -n "$VSWITCHD_STRACE_LOG" ]; then + strace_opt="strace -o $VSWITCHD_STRACE_LOG $VSWITCHD_STRACE_OPT" + daemonize="n" + fi + if [ -n "$VSWITCHD_VALGRIND_LOG" ]; then + valgrind_opt="valgrind --log-file=$VSWITCHD_VALGRIND_LOG $VSWITCHD_VALGRIND_OPT" + daemonize="n" + fi + local fake_proc_net_opt="" + if [ "$ENABLE_FAKE_PROC_NET" == "y" ]; then + fake_proc_net_opt="--fake-proc-net" + fi + if [ "$daemonize" != "y" ]; then + # Start in background and force a "success" message + action "Starting ovs-vswitchd ($strace_opt$valgrind_opt)" true + (nice -n "$VSWITCHD_PRIORITY" $strace_opt $valgrind_opt "$vswitchd" -P"$VSWITCHD_PIDFILE" -D $fake_proc_net_opt -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF") & + else + action "Starting ovs-vswitchd" nice -n "$VSWITCHD_PRIORITY" "$vswitchd" -P"$VSWITCHD_PIDFILE" -D $fake_proc_net_opt -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF" + fi +} + +function start_brcompatd { + local syslog_opt="-vANY:SYSLOG:${BRCOMPATD_SYSLOG_LOGLEVEL}" + local logfile_file_opt="" + local logfile_level_opt="" + if [ -n "$BRCOMPATD_FILE_LOGLEVEL" ]; then + logfile_level_opt="-vANY:FILE:${BRCOMPATD_FILE_LOGLEVEL}" + logfile_file_opt="--log-file=$BRCOMPATD_LOGFILE" + fi + local leak_opt="" + if [ -n "$BRCOMPATD_MEMLEAK_LOG" ]; then + leak_opt="--check-leaks=$BRCOMPATD_MEMLEAK_LOGFILE" + if [ -e "$BRCOMPATD_MEMLEAK_LOGFILE" ]; then + mv "$BRCOMPATD_MEMLEAK_LOGFILE" "$BRCOMPATD_MEMLEAK_LOGFILE.prev" + fi + fi + local strace_opt="" + local daemonize="y" + if [ -n "$BRCOMPATD_STRACE_LOG" ] && [ -n "$BRCOMPATD_VALGRIND_LOG" ]; then + printf "Can not start with both VALGRIND and STRACE\n" + exit 1 + fi + if [ -n "$BRCOMPATD_STRACE_LOG" ]; then + strace_opt="strace -o $BRCOMPATD_STRACE_LOG $BRCOMPATD_STRACE_OPT" + daemonize="n" + fi + if [ -n "$VALGRIND_LOG" ]; then + valgrind_opt="valgrind --log-file=$BRCOMPATD_VALGRIND_LOG $BRCOMPATD_VALGRIND_OPT" + daemonize="n" + fi + reload_cmd='/root/vswitch/bin/ovs-appctl -t /var/run/ovs-vswitchd.`cat /var/run/ovs-vswitchd.pid`.ctl -e vswitchd/reload 2>&1 | /usr/bin/logger -t brcompatd-reload' + if [ "$daemonize" != "y" ]; then + # Start in background and force a "success" message + action "Starting ovs-brcompatd ($strace_opt$valgrind_opt)" true + (nice -n "$VSWITCHD_PRIORITY" $strace_opt $valgrind_opt "$brcompatd" --reload-command="$reload_cmd" -P$BRCOMPATD_PIDFILE -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF") & + else + action "Starting ovs-brcompatd" nice -n "$BRCOMPATD_PRIORITY" $strace_opt $valgrind_opt "$brcompatd" --reload-command="$reload_cmd" -P$BRCOMPATD_PIDFILE -D -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF" + fi +} + +function stop_vswitchd { + if [ -f "$VSWITCHD_PIDFILE" ]; then + local pid=$(cat "$VSWITCHD_PIDFILE") + action "Killing ovs-vswitchd ($pid)" kill -TERM $pid + rm -f "$VSWITCHD_PIDFILE" + fi +} + +function stop_brcompatd { + if [ -f "$BRCOMPATD_PIDFILE" ]; then + local pid=$(cat "$BRCOMPATD_PIDFILE") + action "Killing ovs-brcompatd ($pid)" kill -TERM $pid + rm -f "$BRCOMPATD_PIDFILE" + fi +} + +function restart_approval { + if test ! -t 0; then + # Don't prompt if invoked non-interactively. + return 0 + fi + cat <<EOF + +WARNING!!! + +Restarting vswitch on a live server is not guaranteed to work. It is +provided as a convenience for those situations in which it does work. +If you just want to reload the configuration file, use "reload" +instead of restart. + +EOF + read -s -r -n 1 -p "Countinue with restart (y/N): " response + printf "\n" + case "$response" in + y|Y) + return 0 + ;; + *) + return 1 + ;; + esac +} + +function start { + insert_modules_if_required + start_vswitchd + start_brcompatd + reload_vswitchd # ensures ovs-vswitchd has fully read config file. +} + +function stop { + stop_brcompatd + stop_vswitchd +} + +function restart { + if restart_approval; then + stop + start + fi +} + +case "$1" in + start) + if [ "$FORCE_COREFILES" == "y" ]; then + turn_on_corefiles + fi + start + ;; + stop) + stop + ;; + restart) + restart + ;; + reload) + reload_vswitchd + ;; + strace-vswitchd) + shift + strace -p $(cat "$VSWITCHD_PIDFILE") "$@" + ;; + strace-brcompatd) + shift + strace -p $(cat "$BRCOMPATD_PIDFILE") "$@" + ;; + status) + status -p ovs-vswitchd.pid ovs-vswitchd + status -p ovs-brcompatd.pid ovs-brcompatd + ;; + version) + "$VSWITCH_BASE"/sbin/ovs-vswitchd -V + "$VSWITCH_BASE"/sbin/ovs-brcompatd -V + ;; + help) + printf "vswitch [start|stop|restart|reload|unload|status|version]\n" + ;; + *) + printf "Unknown command: $1\n" + exit 1 + ;; +esac |