diff options
Diffstat (limited to 'tools/testing/selftests/net/openvswitch/openvswitch.sh')
| -rwxr-xr-x | tools/testing/selftests/net/openvswitch/openvswitch.sh | 169 |
1 files changed, 157 insertions, 12 deletions
diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index 15bca0708717..cc0bfae2bafa 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -11,6 +11,11 @@ ksft_skip=4 PAUSE_ON_FAIL=no VERBOSE=0 TRACING=0 +WAIT_TIMEOUT=5 + +if test "X$KSFT_MACHINE_SLOW" == "Xyes"; then + WAIT_TIMEOUT=10 +fi tests=" arp_ping eth-arp: Basic arp ping between two NS @@ -20,10 +25,37 @@ tests=" nat_related_v4 ip4-nat-related: ICMP related matches work with SNAT netlink_checks ovsnl: validate netlink attrs and settings upcall_interfaces ovs: test the upcall interfaces - drop_reason drop: test drop reasons are emitted" + drop_reason drop: test drop reasons are emitted + psample psample: Sampling packets with psample" info() { - [ $VERBOSE = 0 ] || echo $* + [ "${ovs_dir}" != "" ] && + echo "`date +"[%m-%d %H:%M:%S]"` $*" >> ${ovs_dir}/debug.log + [ $VERBOSE = 0 ] || echo $* +} + +ovs_wait() { + info "waiting $WAIT_TIMEOUT s for: $@" + + if "$@" ; then + info "wait succeeded immediately" + return 0 + fi + + # A quick re-check helps speed up small races in fast systems. + # However, fractional sleeps might not necessarily work. + local start=0 + sleep 0.1 || { sleep 1; start=1; } + + for (( i=start; i<WAIT_TIMEOUT; i++ )); do + if "$@" ; then + info "wait succeeded after $i seconds" + return 0 + fi + sleep 1 + done + info "wait failed after $i seconds" + return 1 } ovs_base=`pwd` @@ -65,7 +97,8 @@ ovs_setenv() { ovs_sbx() { if test "X$2" != X; then - (ovs_setenv $1; shift; "$@" >> ${ovs_dir}/debug.log) + (ovs_setenv $1; shift; + info "run cmd: $@"; "$@" >> ${ovs_dir}/debug.log) else ovs_setenv $1 fi @@ -102,12 +135,21 @@ ovs_netns_spawn_daemon() { shift netns=$1 shift - info "spawning cmd: $*" - ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & + if [ "$netns" == "_default" ]; then + $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & + else + ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & + fi pid=$! ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null" } +ovs_spawn_daemon() { + sbx=$1 + shift + ovs_netns_spawn_daemon $sbx "_default" $* +} + ovs_add_netns_and_veths () { info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}" ovs_sbx "$1" ip netns add "$3" || return 1 @@ -139,7 +181,7 @@ ovs_add_flow () { info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4" ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4" if [ $? -ne 0 ]; then - echo "Flow [ $3 : $4 ] failed" >> ${ovs_dir}/debug.log + info "Flow [ $3 : $4 ] failed" return 1 fi return 0 @@ -170,6 +212,19 @@ ovs_drop_reason_count() return `echo "$perf_output" | grep "$pattern" | wc -l` } +ovs_test_flow_fails () { + ERR_MSG="Flow actions may not be safe on all matching packets" + + PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") + ovs_add_flow $@ &> /dev/null $@ && return 1 + POST_TEST=$(dmesg | grep -c "${ERR_MSG}") + + if [ "$PRE_TEST" == "$POST_TEST" ]; then + return 1 + fi + return 0 +} + usage() { echo echo "$0 [OPTIONS] [TEST]..." @@ -184,6 +239,91 @@ usage() { exit 1 } + +# psample test +# - use psample to observe packets +test_psample() { + sbx_add "test_psample" || return $? + + # Add a datapath with per-vport dispatching. + ovs_add_dp "test_psample" psample -V 2:1 || return 1 + + info "create namespaces" + ovs_add_netns_and_veths "test_psample" "psample" \ + client c0 c1 172.31.110.10/24 -u || return 1 + ovs_add_netns_and_veths "test_psample" "psample" \ + server s0 s1 172.31.110.20/24 -u || return 1 + + # Check if psample actions can be configured. + ovs_add_flow "test_psample" psample \ + 'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null + if [ $? == 1 ]; then + info "no support for psample - skipping" + ovs_exit_sig + return $ksft_skip + fi + + ovs_del_flows "test_psample" psample + + # Test action verification. + OLDIFS=$IFS + IFS='*' + min_key='in_port(1),eth(),eth_type(0x0800),ipv4()' + for testcase in \ + "cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \ + "no group with cookie"*"psample(cookie=abcd)" \ + "no group"*"psample()"; + do + set -- $testcase; + ovs_test_flow_fails "test_psample" psample $min_key $2 + if [ $? == 1 ]; then + info "failed - $1" + return 1 + fi + done + IFS=$OLDIFS + + ovs_del_flows "test_psample" psample + # Allow ARP + ovs_add_flow "test_psample" psample \ + 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 + ovs_add_flow "test_psample" psample \ + 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 + + # Sample first 14 bytes of all traffic. + ovs_add_flow "test_psample" psample \ + "in_port(1),eth(),eth_type(0x0800),ipv4()" \ + "trunc(14),psample(group=1,cookie=c0ffee),2" + + # Sample all traffic. In this case, use a sample() action with both + # psample and an upcall emulating simultaneous local sampling and + # sFlow / IPFIX. + nlpid=$(grep -E "listening on upcall packet handler" \ + $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ') + + ovs_add_flow "test_psample" psample \ + "in_port(2),eth(),eth_type(0x0800),ipv4()" \ + "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1" + + # Record psample data. + ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events + ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout + + # Send a single ping. + ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1 + + # We should have received one userspace action upcall and 2 psample packets. + ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1 + + # client -> server samples should only contain the first 14 bytes of the packet. + ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \ + $ovs_dir/stdout || return 1 + + ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1 + + return 0 +} + # drop_reason test # - drop packets and verify the right drop reason is reported test_drop_reason() { @@ -599,7 +739,8 @@ test_upcall_interfaces() { ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ 172.31.110.1/24 -u || return 1 - sleep 1 + ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out + info "sending arping" ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr @@ -613,16 +754,20 @@ run_test() { tname="$1" tdesc="$2" - if ! lsmod | grep openvswitch >/dev/null 2>&1; then - stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" - return $ksft_skip - fi - if python3 ovs-dpctl.py -h 2>&1 | \ grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}" return $ksft_skip fi + + python3 ovs-dpctl.py show >/dev/null 2>&1 || \ + echo "[DPCTL] show exception." + + if ! lsmod | grep openvswitch >/dev/null 2>&1; then + stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" + return $ksft_skip + fi + printf "TEST: %-60s [START]\n" "${tname}" unset IFS |