AT_BANNER([ovs-vswitchd])

dnl The OVS initscripts never make an empty database (one without even an
dnl Open_vSwitch record) visible to ovs-vswitchd, but hand-rolled scripts
dnl sometimes do.  At one point, "ovs-vswitchd --detach" would never detach
dnl and use 100% CPU if this happened, so this test checks for regression.
AT_SETUP([ovs-vswitchd detaches correctly with empty db])
on_exit 'kill `cat ovsdb-server.pid ovs-vswitchd.pid`'

dnl Create database.
touch .conf.db.~lock~
AT_CHECK([ovsdb-tool create conf.db $abs_top_srcdir/vswitchd/vswitch.ovsschema])

dnl Start ovsdb-server.  *Don't* initialize database.
AT_CHECK([ovsdb-server --detach --no-chdir --pidfile --log-file --remote=punix:$OVS_RUNDIR/db.sock], [0], [ignore], [ignore])
AT_CAPTURE_FILE([ovsdb-server.log])

dnl Start ovs-vswitchd.
AT_CHECK([ovs-vswitchd --detach --no-chdir --pidfile --enable-dummy --disable-system --log-file], [0], [], [stderr])
AT_CAPTURE_FILE([ovs-vswitchd.log])

dnl ovs-vswitchd detached OK or we wouldn't have made it this far.  Success.
AT_CLEANUP


dnl ----------------------------------------------------------------------
m4_define([OVS_VSCTL_CHECK_RX_PKT], [
AT_CHECK([ovs-vsctl list int $1 | grep statistics | sed -n 's/^.*\(rx_packets=[[0-9]][[0-9]]*\).*$/\1/p'],[0],
[dnl
rx_packets=$2
])
])

AT_SETUP([ovs-vswitchd -- stats-update-interval])
OVS_VSWITCHD_START([add-port br0 p1 -- set int p1 type=internal])
ovs-appctl time/stop

dnl at the beginning, the update of rx_packets should happen every 5 seconds.
ovs-appctl time/warp 11000 1000
OVS_VSCTL_CHECK_RX_PKT([p1], [0])
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)'])
ovs-appctl time/warp 11000 1000
OVS_VSCTL_CHECK_RX_PKT([p1], [1])

dnl set the stats update interval to 100K ms, the following 'recv' should not be updated.
AT_CHECK([ovs-vsctl set O . other_config:stats-update-interval=100000])
ovs-appctl time/warp 51000 1000
for i in `seq 1 5`; do
    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)'])
done

OVS_VSCTL_CHECK_RX_PKT([p1], [1])
dnl advance the clock by 100K ms, the previous 'recv' should be updated.
ovs-appctl time/warp 100000 1000
OVS_VSCTL_CHECK_RX_PKT([p1], [6])

dnl now remove the configuration. 'recv' one packet.  there should be an update after 5000 ms.
AT_CHECK([ovs-vsctl clear O . other_config])
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)'])
ovs-appctl time/warp 11000 1000
OVS_VSCTL_CHECK_RX_PKT([p1], [7])

OVS_VSWITCHD_STOP
AT_CLEANUP

dnl ----------------------------------------------------------------------
AT_SETUP([ovs-vswitchd -- start additional ovs-vswitchd process])
OVS_VSWITCHD_START

# start another ovs-vswitchd process.
ovs-vswitchd --log-file=fakelog --unixctl="`pwd`"/unixctl &

# sleep for a while
sleep 5

# stop the process.
ovs-appctl -t `pwd`/unixctl exit

# check the fakelog, should only see one ERR for reporting
# the existing ovs-vswitchd process.
AT_CHECK([test `grep ERR fakelog | wc -l` -eq 1])

AT_CHECK([tail -n1 fakelog | sed -e 's/^.*ERR|//; s/pid [[0-9]]*//'], [0], [dnl
another ovs-vswitchd process is running, disabling this process () until it goes away
])

OVS_VSWITCHD_STOP
AT_CLEANUP

dnl ----------------------------------------------------------------------
AT_SETUP([ovs-vswitchd -- switch over to another ovs-vswitchd process])
OVS_VSWITCHD_START

# start a new ovs-vswitchd process.
ovs-vswitchd --log-file=fakelog --enable-dummy --unixctl="`pwd`"/unixctl &

# sleep for a while.
sleep 5

# kill the current active ovs-vswitchd process.
kill `cat ovs-vswitchd.pid`

sleep 5

# check the creation of br0 on the new ovs-vswitchd process.
AT_CHECK([grep "bridge br0" fakelog | sed -e 's/port [[0-9]]*$/port/;
s/datapath ID [[a-z0-9]]*$/datapath ID/;s/^.*INFO|//'], [0], [dnl
bridge br0: added interface br0 on port
bridge br0: using datapath ID
])

# stop the process.
ovs-appctl -t `pwd`/unixctl exit

# check the fakelog, should not see WARN/ERR/EMER log other than the one
# for reporting the existing ovs-vswitchd process and the one for killing
# the process.
AT_CHECK([sed -n "
/|ERR|another ovs-vswitchd process is running/d
/|WARN|/p
/|ERR|/p
/|EMER|/p" fakelog
])

# cleanup.
kill `cat ovsdb-server.pid`
AT_CLEANUP

dnl ----------------------------------------------------------------------
AT_SETUP([ovs-vswitchd -- invalid database path])

# start an ovs-vswitchd process with invalid db path.
ovs-vswitchd unix:invalid.db.sock --log-file=fakelog --enable-dummy --unixctl="`pwd`"/unixctl &

# sleep for a while.
sleep 10

# stop the process.
ovs-appctl -t `pwd`/unixctl exit

# should not see this log (which indicates high cpu utilization).
AT_CHECK([grep "wakeup due to" fakelog], [ignore])

# check the fakelog, should not see any WARN/ERR/EMER log.
AT_CHECK([sed -n "
/|WARN|/p
/|ERR|/p
/|EMER|/p" fakelog
])

AT_CLEANUP

dnl ----------------------------------------------------------------------
AT_SETUP([ovs-vswitchd -- set service controller])
AT_SKIP_IF([test "$IS_WIN32" = "yes"])
OVS_VSWITCHD_START

AT_CHECK([ovs-vsctl set-controller br0 punix:$(pwd)/br0.void])
OVS_WAIT_UNTIL([test -e br0.void])

AT_CHECK([ovs-vsctl set-controller br0 punix:$(pwd)/br0.void/../overwrite.file])
OVS_WAIT_UNTIL([test -n "`grep ERR ovs-vswitchd.log | grep overwrite.file`"])

OVS_VSWITCHD_STOP(["/Not adding Unix domain socket controller/d"])
AT_CLEANUP

dnl ----------------------------------------------------------------------
dnl OVSDB server before release version 2.5 does not support the monitor2
dnl method.  This test defeatures the OVSDB server to simulate an older
dnl OVSDB server and make sure ovs-vswitchd can still work with it
AT_SETUP([ovs-vswitchd -- Compatible with OVSDB server - w/o monitor2])
OVS_VSWITCHD_START

dnl defeature OVSDB server -- no monitor2
AT_CHECK([ovs-appctl -t ovsdb-server ovsdb-server/disable-monitor2])

sleep 1

AT_CHECK([ovs-vsctl add-port br0 p0  -- set interface p0 type=internal])
AT_CHECK([ovs-vsctl add-port br0 p1  -- set interface p1 type=internal])

dnl ovs-vswitchd should still 'see' ovsdb change with the 'monitor' method
AT_CHECK([ovs-appctl dpif/show | tail -n +3], [0], [dnl
		br0 65534/100: (dummy)
		p0 1/1: (dummy)
		p1 2/2: (dummy)
])
OVS_VSWITCHD_STOP
AT_CLEANUP

dnl ----------------------------------------------------------------------
AT_SETUP([ovs-vswitchd - do not create sockets with unsafe names])
OVS_VSWITCHD_START

# On Unix systems, test for sockets with "test -S".
#
# On Windows systems, we simulate a socket with a regular file that contains
# a TCP port number, so use "test -f" there instead.
if test $IS_WIN32 = yes; then
   S=f
else
   S=S
fi

# Create a bridge with an ordinary name and make sure that the management
# socket gets creatd.
AT_CHECK([ovs-vsctl add-br a -- set bridge a datapath-type=dummy])
AT_CHECK([test -$S a.mgmt])

# Create a bridge with an unsafe name and make sure that the management
# socket does not get created.
mkdir b
AT_CHECK([ovs-vsctl add-br b/c -- set bridge b/c datapath-type=dummy], [0],
  [], [ovs-vsctl: Error detected while setting up 'b/c'.  See ovs-vswitchd log for details.
])
AT_CHECK([test ! -e b/c.mgmt])

OVS_VSWITCHD_STOP(['/ignoring bridge with invalid name/d'])
AT_CLEANUP