tests/ovs-vswitchd.at

   1 AT_BANNER([ovs-vswitchd])
   2
   3 dnl The OVS initscripts never make an empty database (one without even an
   4 dnl Open_vSwitch record) visible to ovs-vswitchd, but hand-rolled scripts
   5 dnl sometimes do.  At one point, "ovs-vswitchd --detach" would never detach
   6 dnl and use 100% CPU if this happened, so this test checks for regression.
   7 AT_SETUP([ovs-vswitchd detaches correctly with empty db])
   8 on_exit 'kill `cat ovsdb-server.pid ovs-vswitchd.pid`'
   9
  10 dnl Create database.
  11 touch .conf.db.~lock~
  12 AT_CHECK([ovsdb-tool create conf.db $abs_top_srcdir/vswitchd/vswitch.ovsschema])
  13
  14 dnl Start ovsdb-server.  *Don't* initialize database.
  15 AT_CHECK([ovsdb-server --detach --no-chdir --pidfile --log-file --remote=punix:$OVS_RUNDIR/db.sock], [0], [ignore], [ignore])
  16 AT_CAPTURE_FILE([ovsdb-server.log])
  17
  18 dnl Start ovs-vswitchd.
  19 AT_CHECK([ovs-vswitchd --detach --no-chdir --pidfile --enable-dummy --disable-system --log-file], [0], [], [stderr])
  20 AT_CAPTURE_FILE([ovs-vswitchd.log])
  21
  22 dnl ovs-vswitchd detached OK or we wouldn't have made it this far.  Success.
  23 OVS_APP_EXIT_AND_WAIT([ovs-vswitchd])
  24 OVS_APP_EXIT_AND_WAIT([ovsdb-server])
  25 AT_CLEANUP
  26
  27
  28 dnl ----------------------------------------------------------------------
  29 m4_define([OVS_VSCTL_CHECK_RX_PKT], [
  30 AT_CHECK([ovs-vsctl list int $1 | grep statistics | sed -n 's/^.*\(rx_packets=[[0-9]][[0-9]]*\).*$/\1/p'],[0],
  31 [dnl
  32 rx_packets=$2
  33 ])
  34 ])
  35
  36 AT_SETUP([ovs-vswitchd -- stats-update-interval])
  37 OVS_VSWITCHD_START([add-port br0 p1 -- set int p1 type=internal])
  38 ovs-appctl time/stop
  39
  40 dnl at the beginning, the update of rx_packets should happen every 5 seconds.
  41 ovs-appctl time/warp 11000 1000
  42 OVS_VSCTL_CHECK_RX_PKT([p1], [0])
  43 AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
  44 ovs-appctl time/warp 11000 1000
  45 OVS_VSCTL_CHECK_RX_PKT([p1], [1])
  46
  47 dnl set the stats update interval to 100K ms, the following 'recv' should not be updated.
  48 AT_CHECK([ovs-vsctl set O . other_config:stats-update-interval=100000])
  49 ovs-appctl time/warp 51000 1000
  50 for i in `seq 1 5`; do
  51     AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
  52 done
  53
  54 OVS_VSCTL_CHECK_RX_PKT([p1], [1])
  55 dnl advance the clock by 100K ms, the previous 'recv' should be updated.
  56 ovs-appctl time/warp 100000 1000
  57 OVS_VSCTL_CHECK_RX_PKT([p1], [6])
  58
  59 dnl now remove the configuration. 'recv' one packet.  there should be an update after 5000 ms.
  60 AT_CHECK([ovs-vsctl clear O . other_config])
  61 AT_CHECK([ovs-appctl netdev-dummy/receive p1 'eth(src=50:54:00:00:00:09,dst=50:54:00:00:00:0a),eth_type(0x0800),ipv4(src=10.0.0.2,dst=10.0.0.1,proto=1,tos=0,ttl=64,frag=no),icmp(type=8,code=0)'])
  62 ovs-appctl time/warp 11000 1000
  63 OVS_VSCTL_CHECK_RX_PKT([p1], [7])
  64
  65 OVS_VSWITCHD_STOP
  66 AT_CLEANUP
  67
  68 dnl ----------------------------------------------------------------------
  69 AT_SETUP([ovs-vswitchd -- start additional ovs-vswitchd process])
  70 OVS_VSWITCHD_START
  71
  72 # start another ovs-vswitchd process.
  73 ovs-vswitchd --log-file=fakelog --unixctl=unixctl2 --pidfile=ovs-vswitchd-2.pid &
  74 on_exit 'kill `cat ovs-vswitchd-2.pid`'
  75
  76 # sleep for a while
  77 sleep 5
  78
  79 # stop the process.
  80 OVS_APP_EXIT_AND_WAIT_BY_TARGET(["`pwd`"/unixctl2], [`pwd`/ovs-vswitchd-2.pid])
  81
  82 # check the fakelog, should only see one ERR for reporting
  83 # the existing ovs-vswitchd process.
  84 AT_CHECK([test `grep ERR fakelog | wc -l` -eq 1])
  85
  86 AT_CHECK([tail -n1 fakelog | sed -e 's/^.*ERR|//; s/pid [[0-9]]*//'], [0], [dnl
  87 another ovs-vswitchd process is running, disabling this process () until it goes away
  88 ])
  89
  90 OVS_VSWITCHD_STOP
  91 AT_CLEANUP
  92
  93 dnl ----------------------------------------------------------------------
  94 AT_SETUP([ovs-vswitchd -- switch over to another ovs-vswitchd process])
  95 OVS_VSWITCHD_START
  96
  97 # start a new ovs-vswitchd process.
  98 ovs-vswitchd --log-file=fakelog --enable-dummy --unixctl=unixctl2 --pidfile=ovs-vswitchd-2.pid &
  99 on_exit 'kill `cat ovs-vswitchd-2.pid`'
 100
 101 # sleep for a while.
 102 sleep 5
 103
 104 # kill the current active ovs-vswitchd process.
 105 kill `cat ovs-vswitchd.pid`
 106
 107 sleep 5
 108
 109 # check the creation of br0 on the new ovs-vswitchd process.
 110 AT_CHECK([grep "bridge br0" fakelog | sed -e 's/port [[0-9]]*$/port/;
 111 s/datapath ID [[a-z0-9]]*$/datapath ID/;s/^.*INFO|//'], [0], [dnl
 112 bridge br0: added interface br0 on port
 113 bridge br0: using datapath ID
 114 ])
 115
 116 # stop the process.
 117 OVS_APP_EXIT_AND_WAIT_BY_TARGET(["`pwd`"/unixctl2], [ovs-vswitchd-2.pid])
 118
 119 # check the fakelog, should not see WARN/ERR/EMER log other than the one
 120 # for reporting the existing ovs-vswitchd process and the one for killing
 121 # the process.
 122 AT_CHECK([sed -n "
 123 /|ERR|another ovs-vswitchd process is running/d
 124 /|WARN|/p
 125 /|ERR|/p
 126 /|EMER|/p" fakelog
 127 ])
 128
 129 # cleanup.
 130 kill `cat ovsdb-server.pid`
 131 AT_CLEANUP
 132
 133 dnl ----------------------------------------------------------------------
 134 AT_SETUP([ovs-vswitchd -- invalid database path])
 135
 136 # start an ovs-vswitchd process with invalid db path.
 137 ovs-vswitchd unix:invalid.db.sock --log-file --enable-dummy --pidfile &
 138 on_exit 'kill `cat ovs-vswitchd.pid`'
 139
 140 # sleep for a while.
 141 sleep 10
 142
 143 # stop the process.
 144 OVS_APP_EXIT_AND_WAIT([ovs-vswitchd])
 145
 146 # should not see this log (which indicates high cpu utilization).
 147 AT_CHECK([grep "wakeup due to" ovs-vswitchd.log], [ignore])
 148
 149 # check the log, should not see any WARN/ERR/EMER log.
 150 AT_CHECK([sed -n "
 151 /|WARN|/p
 152 /|ERR|/p
 153 /|EMER|/p" ovs-vswitchd.log
 154 ])
 155
 156 AT_CLEANUP
 157
 158 dnl ----------------------------------------------------------------------
 159 AT_SETUP([ovs-vswitchd -- set service controller])
 160 AT_SKIP_IF([test "$IS_WIN32" = "yes"])
 161 OVS_VSWITCHD_START
 162
 163 AT_CHECK([ovs-vsctl set-controller br0 punix:$(pwd)/br0.void])
 164 OVS_WAIT_UNTIL([test -e br0.void])
 165
 166 AT_CHECK([ovs-vsctl set-controller br0 punix:$(pwd)/br0.void/../overwrite.file])
 167 OVS_WAIT_UNTIL([test -n "`grep ERR ovs-vswitchd.log | grep overwrite.file`"])
 168
 169 OVS_VSWITCHD_STOP(["/Not adding Unix domain socket controller/d"])
 170 AT_CLEANUP
 171
 172 dnl ----------------------------------------------------------------------
 173 dnl OVSDB server before release version 2.5 does not support the monitor_cond
 174 dnl method.  This test defeatures the OVSDB server to simulate an older
 175 dnl OVSDB server and make sure ovs-vswitchd can still work with it
 176 AT_SETUP([ovs-vswitchd -- Compatible with OVSDB server - w/o monitor_cond])
 177 OVS_VSWITCHD_START
 178
 179 dnl defeature OVSDB server -- no monitor_cond
 180 AT_CHECK([ovs-appctl -t ovsdb-server ovsdb-server/disable-monitor-cond])
 181
 182 sleep 1
 183
 184 AT_CHECK([ovs-vsctl add-port br0 p0  -- set interface p0 type=internal])
 185 AT_CHECK([ovs-vsctl add-port br0 p1  -- set interface p1 type=internal])
 186
 187 dnl ovs-vswitchd should still 'see' ovsdb change with the 'monitor' method
 188 AT_CHECK([ovs-appctl dpif/show | tail -n +3], [0], [dnl
 189                 br0 65534/100: (dummy-internal)
 190                 p0 1/1: (dummy-internal)
 191                 p1 2/2: (dummy-internal)
 192 ])
 193 OVS_VSWITCHD_STOP
 194 AT_CLEANUP
 195
 196 dnl ----------------------------------------------------------------------
 197 AT_SETUP([ovs-vswitchd - do not create sockets with unsafe names])
 198 OVS_VSWITCHD_START
 199
 200 # On Unix systems, test for sockets with "test -S".
 201 #
 202 # On Windows systems, we simulate a socket with a regular file that contains
 203 # a TCP port number, so use "test -f" there instead.
 204 if test $IS_WIN32 = yes; then
 205    S=f
 206 else
 207    S=S
 208 fi
 209
 210 # Create a bridge with an ordinary name and make sure that the management
 211 # socket gets creatd.
 212 AT_CHECK([ovs-vsctl add-br a -- set bridge a datapath-type=dummy])
 213 AT_CHECK([test -$S a.mgmt])
 214
 215 # Create a bridge with an unsafe name and make sure that the management
 216 # socket does not get created.
 217 mkdir b
 218
 219 cat >experr <<EOF
 220 ovs-vsctl: Error detected while setting up 'b/c'.  See ovs-vswitchd log for details.
 221 ovs-vsctl: The default log directory is "$OVS_RUNDIR".
 222 EOF
 223 AT_CHECK([ovs-vsctl add-br b/c -- set bridge b/c datapath-type=dummy], [0], [], [experr])
 224 AT_CHECK([test ! -e b/c.mgmt])
 225
 226 OVS_VSWITCHD_STOP(['/ignoring bridge with invalid name/d'])
 227 AT_CLEANUP