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:=/root/vswitch}
28 : ${ENABLE_BRCOMPAT:=y}
29 : ${ENABLE_FAKE_PROC_NET:=y}
30 : ${FORCE_COREFILES:=y}
32 # Config variables specific to ovs-vswitchd
33 : ${VSWITCHD_CONF:=/etc/ovs-vswitchd.conf}
34 : ${VSWITCHD_PIDFILE:=/var/run/ovs-vswitchd.pid}
35 : ${VSWITCHD_RUN_DIR:=/var/xen/vswitch}
36 : ${VSWITCHD_PRIORITY:=-5}
37 : ${VSWITCHD_NETBACK_PRIORITY:=0}
38 : ${VSWITCHD_LOGFILE:=/var/log/ovs-vswitchd.log}
39 : ${VSWITCHD_FILE_LOGLEVEL:=}
40 : ${VSWITCHD_SYSLOG_LOGLEVEL:=WARN}
41 : ${VSWITCHD_MEMLEAK_LOGFILE:=}
42 : ${VSWITCHD_STRACE_LOG:=}
43 : ${VSWITCHD_STRACE_OPT:=}
44 : ${VSWITCHD_VALGRIND_LOG:=}
45 : ${VSWITCHD_VALGRIND_OPT:=}
47 # Config variables specific to ovs-brcompatd
48 : ${BRCOMPATD_PIDFILE:=/var/run/ovs-brcompatd.pid}
49 : ${BRCOMPATD_RUN_DIR:=/var/xen/vswitch}
50 : ${BRCOMPATD_PRIORITY:=-5}
51 : ${BRCOMPATD_LOGFILE:=/var/log/ovs-brcompatd.log}
52 : ${BRCOMPATD_FILE_LOGLEVEL:=}
53 : ${BRCOMPATD_SYSLOG_LOGLEVEL:=INFO}
54 : ${BRCOMPATD_MEMLEAK_LOGFILE:=}
55 : ${BRCOMPATD_STRACE_LOG:=}
56 : ${BRCOMPATD_STRACE_OPT:=}
57 : ${BRCOMPATD_VALGRIND_LOG:=}
58 : ${BRCOMPATD_VALGRIND_OPT:=}
60 # Full paths to executables & modules
61 vswitchd="$VSWITCH_BASE/sbin/ovs-vswitchd"
62 brcompatd="$VSWITCH_BASE/sbin/ovs-brcompatd"
63 dpctl="$VSWITCH_BASE/bin/ovs-dpctl"
64 appctl="$VSWITCH_BASE/bin/ovs-appctl"
65 ofctl="$VSWITCH_BASE/bin/ovs-ofctl"
68 if [ "$ENABLE_FAKE_PROC_NET" = "y" ]; then
69 if [ "$ENABLE_BRCOMPAT" != "y" ]; then
70 warning "FAKE_PROC_NET required BRCOMPAT which was disabled. Force enabling."
76 "$dpctl" show | grep '^dp[0-9]\+:' | cut -d':' -f 1
79 function turn_on_corefiles {
83 function remove_all_dp {
84 for dp in $(dp_list); do
85 action "Removing datapath: $dp" "$dpctl" del-dp "$dp"
89 function insert_modules_if_required {
90 if ! lsmod | grep -q "openvswitch_mod"; then
91 action "Inserting llc module" modprobe llc
92 action "Inserting openvswitch module" insmod $VSWITCH_BASE/kernel_modules/openvswitch_mod.ko
94 if [ -n "$BRCOMPATD_PIDFILE" ] && ! lsmod | grep -q "brcompat_mod"; then
95 action "Inserting brcompat module" insmod $VSWITCH_BASE/kernel_modules/brcompat_mod.ko
99 function remove_modules {
100 if lsmod | grep -q "brcompat_mod"; then
101 action "Removing brcompat module" rmmod brcompat_mod.ko
103 if lsmod | grep -q "openvswitch_mod"; then
104 action "Removing openvswitch module" rmmod openvswitch_mod.ko
108 function reload_vswitchd {
109 if [ -f "$VSWITCHD_PIDFILE" ]; then
111 --target=ovs-vswitchd.$(cat "$VSWITCHD_PIDFILE").ctl \
112 --execute=vswitchd/reload
120 # renice_netback PRIORITY PID [PID...]
122 # Renices the netback processes given as each PID to nice level PRIORITY.
123 function renice_netback {
128 warning "Netback not running, nothing to renice"
134 action "Renicing netback (pid $pid) to priority $pri" quietly renice $pri -p $pid
138 function start_vswitchd {
139 local syslog_opt="-vANY:SYSLOG:${VSWITCHD_SYSLOG_LOGLEVEL}"
140 local logfile_file_opt=""
141 local logfile_level_opt=""
142 if [ ! -d "$VSWITCHD_RUN_DIR" ]; then
143 mkdir -p "$VSWITCHD_RUN_DIR"
145 cd "$VSWITCHD_RUN_DIR"
146 if [ -n "$VSWITCHD_FILE_LOGLEVEL" ]; then
147 logfile_level_opt="-vANY:FILE:${VSWITCHD_FILE_LOGLEVEL}"
148 logfile_file_opt="--log-file=$VSWITCHD_LOGFILE"
151 if [ -n "$VSWITCHD_MEMLEAK_LOGFILE" ]; then
152 leak_opt="--check-leaks=$VSWITCHD_MEMLEAK_LOGFILE"
153 if [ -e "$VSWITCHD_MEMLEAK_LOGFILE" ]; then
154 mv "$VSWITCHD_MEMLEAK_LOGFILE" "$VSWITCHD_MEMLEAK_LOGFILE.prev"
159 if [ -n "$VSWITCHD_STRACE_LOG" ] && [ -n "$VSWITCHD_VALGRIND_LOG" ]; then
160 printf "Can not start with both VALGRIND and STRACE\n"
163 if [ -n "$VSWITCHD_STRACE_LOG" ]; then
164 strace_opt="strace -o $VSWITCHD_STRACE_LOG $VSWITCHD_STRACE_OPT"
167 if [ -n "$VSWITCHD_VALGRIND_LOG" ]; then
168 valgrind_opt="valgrind --log-file=$VSWITCHD_VALGRIND_LOG $VSWITCHD_VALGRIND_OPT"
171 local fake_proc_net_opt=""
172 if [ "$ENABLE_FAKE_PROC_NET" = "y" ]; then
173 fake_proc_net_opt="--fake-proc-net"
175 if [ "$VSWITCHD_NETBACK_PRIORITY" != default ]; then
176 renice_netback $VSWITCHD_NETBACK_PRIORITY $(pidof netback)
178 warning "Netback renicing disabled (see /etc/sysconfig/vswitch)"
180 if [ "$daemonize" != "y" ]; then
181 # Start in background and force a "success" message
182 action "Starting ovs-vswitchd ($strace_opt$valgrind_opt)" true
183 (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") &
185 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"
189 function start_brcompatd {
190 local syslog_opt="-vANY:SYSLOG:${BRCOMPATD_SYSLOG_LOGLEVEL}"
191 local logfile_file_opt=""
192 local logfile_level_opt=""
193 if [ -d "$BRCOMPATD_RUN_DIR" ]; then
194 mkdir -p "$BRCOMPATD_RUN_DIR"
196 cd "$BRCOMPATD_RUN_DIR"
197 if [ ! -n "$BRCOMPATD_FILE_LOGLEVEL" ]; then
198 logfile_level_opt="-vANY:FILE:${BRCOMPATD_FILE_LOGLEVEL}"
199 logfile_file_opt="--log-file=$BRCOMPATD_LOGFILE"
202 if [ -n "$BRCOMPATD_MEMLEAK_LOG" ]; then
203 leak_opt="--check-leaks=$BRCOMPATD_MEMLEAK_LOGFILE"
204 if [ -e "$BRCOMPATD_MEMLEAK_LOGFILE" ]; then
205 mv "$BRCOMPATD_MEMLEAK_LOGFILE" "$BRCOMPATD_MEMLEAK_LOGFILE.prev"
210 if [ -n "$BRCOMPATD_STRACE_LOG" ] && [ -n "$BRCOMPATD_VALGRIND_LOG" ]; then
211 printf "Can not start with both VALGRIND and STRACE\n"
214 if [ -n "$BRCOMPATD_STRACE_LOG" ]; then
215 strace_opt="strace -o $BRCOMPATD_STRACE_LOG $BRCOMPATD_STRACE_OPT"
218 if [ -n "$VALGRIND_LOG" ]; then
219 valgrind_opt="valgrind --log-file=$BRCOMPATD_VALGRIND_LOG $BRCOMPATD_VALGRIND_OPT"
222 appctl_cmd="$appctl -t /var/run/ovs-vswitchd.\`cat $VSWITCHD_PIDFILE\`.ctl -e '%s'"
223 if [ "$daemonize" != "y" ]; then
224 # Start in background and force a "success" message
225 action "Starting ovs-brcompatd ($strace_opt$valgrind_opt)" true
226 (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") &
228 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"
232 function stop_vswitchd {
233 if [ -f "$VSWITCHD_PIDFILE" ]; then
234 local pid=$(cat "$VSWITCHD_PIDFILE")
235 action "Killing ovs-vswitchd ($pid)" kill -TERM $pid
236 rm -f "$VSWITCHD_PIDFILE"
240 function stop_brcompatd {
241 if [ -f "$BRCOMPATD_PIDFILE" ]; then
242 local pid=$(cat "$BRCOMPATD_PIDFILE")
243 action "Killing ovs-brcompatd ($pid)" kill -TERM $pid
244 rm -f "$BRCOMPATD_PIDFILE"
248 function restart_approval {
250 # Don't prompt if invoked non-interactively.
257 Restarting vswitch on a live server is not guaranteed to work. It is
258 provided as a convenience for those situations in which it does work.
259 If you just want to reload the configuration file, use "reload"
263 read -s -r -n 1 -p "Countinue with restart (y/N): " response
276 if [ "$FORCE_COREFILES" = "y" ]; then
280 insert_modules_if_required
282 # Increase the limit on the number of open file descriptors since
283 # ovs-vswitchd needs a few per bridge
286 if [ ! -e "$VSWITCHD_CONF" ]; then
287 warning "$VSWITCHD_CONF does not exist"
288 action "Creating empty $VSWITCHD_CONF" touch "$VSWITCHD_CONF"
293 reload_vswitchd # ensures ovs-vswitchd has fully read config file.
302 if restart_approval; then
323 strace -p $(cat "$VSWITCHD_PIDFILE") "$@"
327 strace -p $(cat "$BRCOMPATD_PIDFILE") "$@"
330 status -p ovs-vswitchd.pid ovs-vswitchd
331 status -p ovs-brcompatd.pid ovs-brcompatd
334 "$VSWITCH_BASE"/sbin/ovs-vswitchd -V
335 "$VSWITCH_BASE"/sbin/ovs-brcompatd -V
338 printf "vswitch [start|stop|restart|reload|unload|status|version]\n"
341 printf "Unknown command: $1\n"