5 # chkconfig: 2345 09 91
6 # description: Manage vswitch kernel modules and user-space daemon
8 # Copyright (C) 2009 Nicira Networks, Inc.
10 # Licensed under the Apache License, Version 2.0 (the "License");
11 # you may not use this file except in compliance with the License.
12 # You may obtain a copy of the License at:
14 # http://www.apache.org/licenses/LICENSE-2.0
16 # Unless required by applicable law or agreed to in writing, software
17 # distributed under the License is distributed on an "AS IS" BASIS,
18 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 # See the License for the specific language governing permissions and
20 # limitations under the License.
22 . /etc/init.d/functions
24 test -e /etc/sysconfig/vswitch && . /etc/sysconfig/vswitch
26 # General config variables in /etc/sysconfig/vswitch
27 VSWITCH_BASE="${VSWITCH_BASE:-/root/vswitch}"
28 ENABLE_BRCOMPAT="${ENABLE_BRCOMPAT:-y}"
29 ENABLE_FAKE_PROC_NET="${ENABLE_FAKE_PROC_NET:-y}"
30 FORCE_COREFILES="${FORCE_COREFILES:-y}"
32 # Config variables specific to ovs-vswitchd
33 VSWITCHD_CONF="${VSWITCHD_CONF:-/etc/ovs-vswitchd.conf}"
34 VSWITCHD_PIDFILE="${VSWITCHD_PIDFILE:-/var/run/ovs-vswitchd.pid}"
35 VSWITCHD_RUN_DIR="${VSWITCHD_RUN_DIR:-/var/xen/vswitch}"
36 VSWITCHD_PRIORITY="${VSWITCHD_PRIORITY:--5}"
37 VSWITCHD_NETBACK_PRIORITY="${VSWITCHD_NETBACK_PRIORITY:-0}"
38 VSWITCHD_LOGFILE="${VSWITCHD_LOGFILE:-/var/log/ovs-vswitchd.log}"
39 VSWITCHD_FILE_LOGLEVEL="${VSWITCHD_FILE_LOGLEVEL:-}"
40 VSWITCHD_SYSLOG_LOGLEVEL="${VSWITCHD_SYSLOG_LOGLEVEL:-WARN}"
41 VSWITCHD_MEMLEAK_LOGFILE="${VSWITCHD_MEMLEAK_LOGFILE:-}"
42 VSWITCHD_STRACE_LOG="${VSWITCHD_STRACE_LOG:-}"
43 VSWITCHD_STRACE_OPT="${VSWITCHD_STRACE_OPT:-}"
44 VSWITCHD_VALGRIND_LOG="${VSWITCHD_VALGRIND_LOG:-}"
45 VSWITCHD_VALGRIND_OPT="${VSWITCHD_VALGRIND_OPT:-}"
47 # Config variables specific to ovs-brcompatd
48 BRCOMPATD_PIDFILE="${BRCOMPATD_PIDFILE:-/var/run/ovs-brcompatd.pid}"
49 BRCOMPATD_RUN_DIR="${BRCOMPATD_RUN_DIR:-/var/xen/vswitch}"
50 BRCOMPATD_PRIORITY="${BRCOMPATD_PRIORITY:--5}"
51 BRCOMPATD_LOGFILE="${BRCOMPATD_LOGFILE:-/var/log/ovs-brcompatd.log}"
52 BRCOMPATD_FILE_LOGLEVEL="${BRCOMPATD_FILE_LOGLEVEL:-}"
53 BRCOMPATD_SYSLOG_LOGLEVEL="${BRCOMPATD_SYSLOG_LOGLEVEL:-INFO}"
54 BRCOMPATD_MEMLEAK_LOGFILE="${BRCOMPATD_MEMLEAK_LOGFILE:-}"
55 BRCOMPATD_STRACE_LOG="${BRCOMPATD_STRACE_LOG:-}"
56 BRCOMPATD_STRACE_OPT="${BRCOMPATD_STRACE_OPT:-}"
57 BRCOMPATD_VALGRIND_LOG="${BRCOMPATD_VALGRIND_LOG:-}"
58 BRCOMPATD_VALGRIND_OPT="${BRCOMPATD_VALGRIND_OPT:-}"
63 # Full paths to executables & modules
64 vswitchd="$VSWITCH_BASE/sbin/ovs-vswitchd"
65 brcompatd="$VSWITCH_BASE/sbin/ovs-brcompatd"
66 dpctl="$VSWITCH_BASE/bin/ovs-dpctl"
67 appctl="$VSWITCH_BASE/bin/ovs-appctl"
68 ofctl="$VSWITCH_BASE/bin/ovs-ofctl"
71 if [ "$ENABLE_FAKE_PROC_NET" = "y" ]; then
72 if [ "$ENABLE_BRCOMPAT" != "y" ]; then
73 warning "FAKE_PROC_NET required BRCOMPAT which was disabled. Force enabling."
79 "$dpctl" show | grep '^dp[0-9]\+:' | cut -d':' -f 1
82 function turn_on_corefiles {
86 function remove_all_dp {
87 for dp in $(dp_list); do
88 action "Removing datapath: $dp" "$dpctl" del-dp "$dp"
92 function insert_modules_if_required {
93 if ! lsmod | grep -q "openvswitch_mod"; then
94 action "Inserting llc module" modprobe llc
95 action "Inserting openvswitch module" insmod $VSWITCH_BASE/kernel_modules/openvswitch_mod.ko
97 if [ -n "$BRCOMPATD_PIDFILE" ] && ! lsmod | grep -q "brcompat_mod"; then
98 action "Inserting brcompat module" insmod $VSWITCH_BASE/kernel_modules/brcompat_mod.ko
102 function remove_modules {
103 if lsmod | grep -q "brcompat_mod"; then
104 action "Removing brcompat module" rmmod brcompat_mod.ko
106 if lsmod | grep -q "openvswitch_mod"; then
107 action "Removing openvswitch module" rmmod openvswitch_mod.ko
111 function reload_vswitchd {
112 if [ -f "$VSWITCHD_PIDFILE" ]; then
114 --target=ovs-vswitchd.$(cat "$VSWITCHD_PIDFILE").ctl \
115 --execute=vswitchd/reload
123 # renice_netback PRIORITY PID [PID...]
125 # Renices the netback processes given as each PID to nice level PRIORITY.
126 function renice_netback {
131 warning "Netback not running, nothing to renice"
137 action "Renicing netback (pid $pid) to priority $pri" quietly renice $pri -p $pid
141 function start_vswitchd {
142 local syslog_opt="-vANY:SYSLOG:${VSWITCHD_SYSLOG_LOGLEVEL}"
143 local logfile_file_opt=""
144 local logfile_level_opt=""
145 if [ ! -d "$VSWITCHD_RUN_DIR" ]; then
146 mkdir -p "$VSWITCHD_RUN_DIR"
148 cd "$VSWITCHD_RUN_DIR"
149 if [ -n "$VSWITCHD_FILE_LOGLEVEL" ]; then
150 logfile_level_opt="-vANY:FILE:${VSWITCHD_FILE_LOGLEVEL}"
151 logfile_file_opt="--log-file=$VSWITCHD_LOGFILE"
154 if [ -n "$VSWITCHD_MEMLEAK_LOGFILE" ]; then
155 leak_opt="--check-leaks=$VSWITCHD_MEMLEAK_LOGFILE"
156 if [ -e "$VSWITCHD_MEMLEAK_LOGFILE" ]; then
157 mv "$VSWITCHD_MEMLEAK_LOGFILE" "$VSWITCHD_MEMLEAK_LOGFILE.prev"
162 if [ -n "$VSWITCHD_STRACE_LOG" ] && [ -n "$VSWITCHD_VALGRIND_LOG" ]; then
163 printf "Can not start with both VALGRIND and STRACE\n"
166 if [ -n "$VSWITCHD_STRACE_LOG" ]; then
167 strace_opt="strace -o $VSWITCHD_STRACE_LOG $VSWITCHD_STRACE_OPT"
170 if [ -n "$VSWITCHD_VALGRIND_LOG" ]; then
171 valgrind_opt="valgrind --log-file=$VSWITCHD_VALGRIND_LOG $VSWITCHD_VALGRIND_OPT"
174 local fake_proc_net_opt=""
175 if [ "$ENABLE_FAKE_PROC_NET" = "y" ]; then
176 fake_proc_net_opt="--fake-proc-net"
178 if [ "$VSWITCHD_NETBACK_PRIORITY" != default ]; then
179 renice_netback $VSWITCHD_NETBACK_PRIORITY $(pidof netback)
181 warning "Netback renicing disabled (see /etc/sysconfig/vswitch)"
183 if [ "$daemonize" != "y" ]; then
184 # Start in background and force a "success" message
185 action "Starting ovs-vswitchd ($strace_opt$valgrind_opt)" true
186 (nice -n "$VSWITCHD_PRIORITY" $strace_opt $valgrind_opt "$vswitchd" --pidfile="$VSWITCHD_PIDFILE" --detach --no-chdir $fake_proc_net_opt -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF") &
188 action "Starting ovs-vswitchd" nice -n "$VSWITCHD_PRIORITY" "$vswitchd" --pidfile="$VSWITCHD_PIDFILE" --detach --no-chdir $fake_proc_net_opt -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF"
192 function start_brcompatd {
193 local syslog_opt="-vANY:SYSLOG:${BRCOMPATD_SYSLOG_LOGLEVEL}"
194 local logfile_file_opt=""
195 local logfile_level_opt=""
196 if [ -d "$BRCOMPATD_RUN_DIR" ]; then
197 mkdir -p "$BRCOMPATD_RUN_DIR"
199 cd "$BRCOMPATD_RUN_DIR"
200 if [ ! -n "$BRCOMPATD_FILE_LOGLEVEL" ]; then
201 logfile_level_opt="-vANY:FILE:${BRCOMPATD_FILE_LOGLEVEL}"
202 logfile_file_opt="--log-file=$BRCOMPATD_LOGFILE"
205 if [ -n "$BRCOMPATD_MEMLEAK_LOG" ]; then
206 leak_opt="--check-leaks=$BRCOMPATD_MEMLEAK_LOGFILE"
207 if [ -e "$BRCOMPATD_MEMLEAK_LOGFILE" ]; then
208 mv "$BRCOMPATD_MEMLEAK_LOGFILE" "$BRCOMPATD_MEMLEAK_LOGFILE.prev"
213 if [ -n "$BRCOMPATD_STRACE_LOG" ] && [ -n "$BRCOMPATD_VALGRIND_LOG" ]; then
214 printf "Can not start with both VALGRIND and STRACE\n"
217 if [ -n "$BRCOMPATD_STRACE_LOG" ]; then
218 strace_opt="strace -o $BRCOMPATD_STRACE_LOG $BRCOMPATD_STRACE_OPT"
221 if [ -n "$VALGRIND_LOG" ]; then
222 valgrind_opt="valgrind --log-file=$BRCOMPATD_VALGRIND_LOG $BRCOMPATD_VALGRIND_OPT"
225 appctl_cmd="$appctl -t /var/run/ovs-vswitchd.\`cat $VSWITCHD_PIDFILE\`.ctl -e '%s'"
226 if [ "$daemonize" != "y" ]; then
227 # Start in background and force a "success" message
228 action "Starting ovs-brcompatd ($strace_opt$valgrind_opt)" true
229 (nice -n "$VSWITCHD_PRIORITY" $strace_opt $valgrind_opt "$brcompatd"--no-chdir --appctl-command="$appctl_cmd" --pidfile=$BRCOMPATD_PIDFILE -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF") &
231 action "Starting ovs-brcompatd" nice -n "$BRCOMPATD_PRIORITY" $strace_opt $valgrind_opt "$brcompatd" --no-chdir --appctl-command="$appctl_cmd" --pidfile=$BRCOMPATD_PIDFILE --detach -vANY:CONSOLE:EMER $syslog_opt $logfile_level_opt $logfile_file_opt $leak_opt "$VSWITCHD_CONF"
235 function stop_vswitchd {
236 if [ -f "$VSWITCHD_PIDFILE" ]; then
237 local pid=$(cat "$VSWITCHD_PIDFILE")
238 action "Killing ovs-vswitchd ($pid)" kill -TERM $pid
239 rm -f "$VSWITCHD_PIDFILE"
243 function stop_brcompatd {
244 if [ -f "$BRCOMPATD_PIDFILE" ]; then
245 local pid=$(cat "$BRCOMPATD_PIDFILE")
246 action "Killing ovs-brcompatd ($pid)" kill -TERM $pid
247 rm -f "$BRCOMPATD_PIDFILE"
251 function restart_approval {
253 # Don't prompt if invoked non-interactively.
260 Restarting vswitch on a live server is not guaranteed to work. It is
261 provided as a convenience for those situations in which it does work.
262 If you just want to reload the configuration file, use "reload"
266 read -s -r -n 1 -p "Countinue with restart (y/N): " response
279 if [ "$FORCE_COREFILES" = "y" ]; then
283 insert_modules_if_required
285 # Increase the limit on the number of open file descriptors since
286 # ovs-vswitchd needs a few per bridge
291 reload_vswitchd # ensures ovs-vswitchd has fully read config file.
300 if restart_approval; then
321 strace -p $(cat "$VSWITCHD_PIDFILE") "$@"
325 strace -p $(cat "$BRCOMPATD_PIDFILE") "$@"
328 status -p ovs-vswitchd.pid ovs-vswitchd
329 status -p ovs-brcompatd.pid ovs-brcompatd
332 "$VSWITCH_BASE"/sbin/ovs-vswitchd -V
333 "$VSWITCH_BASE"/sbin/ovs-brcompatd -V
336 printf "vswitch [start|stop|restart|reload|unload|status|version]\n"
339 printf "Unknown command: $1\n"