Patrick Williams | d849ec7 | 2016-08-17 14:59:38 -0500 | [diff] [blame^] | 1 | #!/bin/sh |
| 2 | # |
| 3 | # Copyright (c) 2011 Nicira Networks Inc. |
| 4 | # Copyright (c) 2007, 2009 Javier Fernandez-Sanguino <jfs@debian.org> |
| 5 | # |
| 6 | # This is free software; you may redistribute it and/or modify |
| 7 | # it under the terms of the GNU General Public License as |
| 8 | # published by the Free Software Foundation; either version 2, |
| 9 | # or (at your option) any later version. |
| 10 | # |
| 11 | # This is distributed in the hope that it will be useful, but |
| 12 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | # GNU General Public License for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License with |
| 17 | # the Debian operating system, in /usr/share/common-licenses/GPL; if |
| 18 | # not, write to the Free Software Foundation, Inc., 59 Temple Place, |
| 19 | # Suite 330, Boston, MA 02111-1307 USA |
| 20 | # |
| 21 | ### BEGIN INIT INFO |
| 22 | # Provides: openvswitch-testcontroller |
| 23 | # Required-Start: $network $local_fs $remote_fs |
| 24 | # Required-Stop: $remote_fs |
| 25 | # Should-Start: $named |
| 26 | # Should-Stop: |
| 27 | # Default-Start: 2 3 4 5 |
| 28 | # Default-Stop: 0 1 6 |
| 29 | # Short-Description: Open vSwitch controller |
| 30 | ### END INIT INFO |
| 31 | |
| 32 | PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin |
| 33 | |
| 34 | DAEMON=/usr/bin/ovs-testcontroller # Introduce the server's location here |
| 35 | NAME=ovs-testcontroller # Introduce the short server's name here |
| 36 | DESC=ovs-testcontroller # Introduce a short description here |
| 37 | LOGDIR=/var/log/openvswitch # Log directory to use |
| 38 | |
| 39 | PIDFILE=/var/run/openvswitch/$NAME.pid |
| 40 | |
| 41 | test -x $DAEMON || exit 0 |
| 42 | |
| 43 | . /lib/lsb/init-functions |
| 44 | |
| 45 | # Default options, these can be overriden by the information |
| 46 | # at /etc/default/openvswitch-testcontroller |
| 47 | DAEMON_OPTS="" # Additional options given to the server |
| 48 | |
| 49 | DODTIME=10 # Time to wait for the server to die, in seconds |
| 50 | # If this value is set too low you might not |
| 51 | # let some servers to die gracefully and |
| 52 | # 'restart' will not work |
| 53 | |
| 54 | LOGFILE=$LOGDIR/$NAME.log # Server logfile |
| 55 | #DAEMONUSER= # User to run the daemons as. If this value |
| 56 | # is set start-stop-daemon will chuid the server |
| 57 | |
| 58 | # Include defaults if available |
| 59 | default=/etc/default/openvswitch-testcontroller |
| 60 | if [ -f $default ] ; then |
| 61 | . $default |
| 62 | fi |
| 63 | |
| 64 | # Check that the user exists (if we set a user) |
| 65 | # Does the user exist? |
| 66 | if [ -n "$DAEMONUSER" ] ; then |
| 67 | if getent passwd | grep -q "^$DAEMONUSER:"; then |
| 68 | # Obtain the uid and gid |
| 69 | DAEMONUID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $3}'` |
| 70 | DAEMONGID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $4}'` |
| 71 | else |
| 72 | log_failure_msg "The user $DAEMONUSER, required to run $NAME does not exist." |
| 73 | exit 1 |
| 74 | fi |
| 75 | fi |
| 76 | |
| 77 | |
| 78 | set -e |
| 79 | |
| 80 | running_pid() { |
| 81 | # Check if a given process pid's cmdline matches a given name |
| 82 | pid=$1 |
| 83 | name=$2 |
| 84 | [ -z "$pid" ] && return 1 |
| 85 | [ ! -d /proc/$pid ] && return 1 |
| 86 | cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1` |
| 87 | # Is this the expected server |
| 88 | [ "$cmd" != "$name" ] && return 1 |
| 89 | return 0 |
| 90 | } |
| 91 | |
| 92 | running() { |
| 93 | # Check if the process is running looking at /proc |
| 94 | # (works for all users) |
| 95 | |
| 96 | # No pidfile, probably no daemon present |
| 97 | [ ! -f "$PIDFILE" ] && return 1 |
| 98 | pid=`cat $PIDFILE` |
| 99 | running_pid $pid $DAEMON || return 1 |
| 100 | return 0 |
| 101 | } |
| 102 | |
| 103 | start_server() { |
| 104 | if [ -z "$LISTEN" ]; then |
| 105 | echo "$default: No connection methods configured, controller disabled" >&2 |
| 106 | exit 0 |
| 107 | fi |
| 108 | |
| 109 | if [ ! -d /var/run/openvswitch ]; then |
| 110 | install -d -m 755 -o root -g root /var/run/openvswitch |
| 111 | fi |
| 112 | |
| 113 | SSL_OPTS= |
| 114 | case $LISTEN in |
| 115 | *ssl*) |
| 116 | : ${PRIVKEY:=/etc/openvswitch-testcontroller/privkey.pem} |
| 117 | : ${CERT:=/etc/openvswitch-testcontroller/cert.pem} |
| 118 | : ${CACERT:=/etc/openvswitch-testcontroller/cacert.pem} |
| 119 | if test ! -e "$PRIVKEY" || test ! -e "$CERT" || |
| 120 | test ! -e "$CACERT"; then |
| 121 | if test ! -e "$PRIVKEY"; then |
| 122 | echo "$PRIVKEY: private key missing" >&2 |
| 123 | fi |
| 124 | if test ! -e "$CERT"; then |
| 125 | echo "$CERT: certificate for private key missing" >&2 |
| 126 | fi |
| 127 | if test ! -e "$CACERT"; then |
| 128 | echo "$CACERT: CA certificate missing" >&2 |
| 129 | fi |
| 130 | exit 1 |
| 131 | fi |
| 132 | SSL_OPTS="--private-key=$PRIVKEY --certificate=$CERT --ca-cert=$CACERT" |
| 133 | ;; |
| 134 | esac |
| 135 | |
| 136 | # Start the process using the wrapper |
| 137 | if [ -z "$DAEMONUSER" ] ; then |
| 138 | start-stop-daemon --start --pidfile $PIDFILE \ |
| 139 | --exec $DAEMON -- --detach --pidfile=$PIDFILE \ |
| 140 | $LISTEN $DAEMON_OPTS $SSL_OPTS |
| 141 | errcode=$? |
| 142 | else |
| 143 | # if we are using a daemonuser then change the user id |
| 144 | start-stop-daemon --start --quiet --pidfile $PIDFILE \ |
| 145 | --chuid $DAEMONUSER --exec $DAEMON -- \ |
| 146 | --detach --pidfile=$PIDFILE $LISTEN $DAEMON_OPTS \ |
| 147 | $SSL_OPTS |
| 148 | errcode=$? |
| 149 | fi |
| 150 | return $errcode |
| 151 | } |
| 152 | |
| 153 | stop_server() { |
| 154 | # Stop the process using the wrapper |
| 155 | if [ -z "$DAEMONUSER" ] ; then |
| 156 | start-stop-daemon --stop --quiet --pidfile $PIDFILE \ |
| 157 | --exec $DAEMON |
| 158 | errcode=$? |
| 159 | else |
| 160 | # if we are using a daemonuser then look for process that match |
| 161 | start-stop-daemon --stop --quiet --pidfile $PIDFILE \ |
| 162 | --user $DAEMONUSER --exec $DAEMON |
| 163 | errcode=$? |
| 164 | fi |
| 165 | |
| 166 | return $errcode |
| 167 | } |
| 168 | |
| 169 | reload_server() { |
| 170 | [ ! -f "$PIDFILE" ] && return 1 |
| 171 | pid=`cat $PIDFILE` # This is the daemon's pid |
| 172 | # Send a SIGHUP |
| 173 | kill -1 $pid |
| 174 | return $? |
| 175 | } |
| 176 | |
| 177 | force_stop() { |
| 178 | # Force the process to die killing it manually |
| 179 | [ ! -e "$PIDFILE" ] && return |
| 180 | if running ; then |
| 181 | kill -15 $pid |
| 182 | # Is it really dead? |
| 183 | sleep "$DODTIME" |
| 184 | if running ; then |
| 185 | kill -9 $pid |
| 186 | sleep "$DODTIME" |
| 187 | if running ; then |
| 188 | echo "Cannot kill $NAME (pid=$pid)!" |
| 189 | exit 1 |
| 190 | fi |
| 191 | fi |
| 192 | fi |
| 193 | rm -f $PIDFILE |
| 194 | } |
| 195 | |
| 196 | |
| 197 | case "$1" in |
| 198 | start) |
| 199 | log_begin_msg "Starting $DESC " "$NAME" |
| 200 | # Check if it's running first |
| 201 | if running ; then |
| 202 | log_warning_msg "apparently already running" |
| 203 | log_end_msg 0 |
| 204 | exit 0 |
| 205 | fi |
| 206 | if start_server && running ; then |
| 207 | # It's ok, the server started and is running |
| 208 | log_end_msg 0 |
| 209 | else |
| 210 | # Either we could not start it or it is not running |
| 211 | # after we did |
| 212 | # NOTE: Some servers might die some time after they start, |
| 213 | # this code does not try to detect this and might give |
| 214 | # a false positive (use 'status' for that) |
| 215 | log_end_msg 1 |
| 216 | fi |
| 217 | ;; |
| 218 | stop) |
| 219 | log_begin_msg "Stopping $DESC" "$NAME" |
| 220 | if running ; then |
| 221 | # Only stop the server if we see it running |
| 222 | stop_server |
| 223 | log_end_msg $? |
| 224 | else |
| 225 | # If it's not running don't do anything |
| 226 | log_warning_msg "apparently not running" |
| 227 | log_end_msg 0 |
| 228 | exit 0 |
| 229 | fi |
| 230 | ;; |
| 231 | force-stop) |
| 232 | # First try to stop gracefully the program |
| 233 | $0 stop |
| 234 | if running; then |
| 235 | # If it's still running try to kill it more forcefully |
| 236 | log_begin_msg "Stopping (force) $DESC" "$NAME" |
| 237 | force_stop |
| 238 | log_end_msg $? |
| 239 | fi |
| 240 | ;; |
| 241 | restart|force-reload) |
| 242 | log_begin_msg "Restarting $DESC" "$NAME" |
| 243 | stop_server |
| 244 | # Wait some sensible amount, some server need this |
| 245 | [ -n "$DODTIME" ] && sleep $DODTIME |
| 246 | start_server |
| 247 | running |
| 248 | log_end_msg $? |
| 249 | ;; |
| 250 | status) |
| 251 | |
| 252 | log_begin_msg "Checking status of $DESC" "$NAME" |
| 253 | if running ; then |
| 254 | log_begin_msg "running" |
| 255 | log_end_msg 0 |
| 256 | else |
| 257 | log_warning_msg "apparently not running" |
| 258 | log_end_msg 1 |
| 259 | exit 1 |
| 260 | fi |
| 261 | ;; |
| 262 | # Use this if the daemon cannot reload |
| 263 | reload) |
| 264 | log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon" |
| 265 | log_warning_msg "cannot re-read the config file (use restart)." |
| 266 | ;; |
| 267 | *) |
| 268 | N=/etc/init.d/openvswitch-testcontroller |
| 269 | echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2 |
| 270 | exit 1 |
| 271 | ;; |
| 272 | esac |
| 273 | |
| 274 | exit 0 |