| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # Run a series of udpgro functional tests. |
| |
| readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)" |
| |
| # set global exit status, but never reset nonzero one. |
| check_err() |
| { |
| if [ $ret -eq 0 ]; then |
| ret=$1 |
| fi |
| } |
| |
| cleanup() { |
| local -r jobs="$(jobs -p)" |
| local -r ns="$(ip netns list|grep $PEER_NS)" |
| |
| [ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null |
| [ -n "$ns" ] && ip netns del $ns 2>/dev/null |
| } |
| trap cleanup EXIT |
| |
| cfg_veth() { |
| ip netns add "${PEER_NS}" |
| ip -netns "${PEER_NS}" link set lo up |
| ip link add type veth |
| ip link set dev veth0 up |
| ip addr add dev veth0 192.168.1.2/24 |
| ip addr add dev veth0 2001:db8::2/64 nodad |
| |
| ip link set dev veth1 netns "${PEER_NS}" |
| ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24 |
| ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad |
| ip -netns "${PEER_NS}" link set dev veth1 up |
| ip -n "${PEER_NS}" link set veth1 xdp object ../bpf/xdp_dummy.o section xdp |
| } |
| |
| run_one() { |
| # use 'rx' as separator between sender args and receiver args |
| local -r all="$@" |
| local -r tx_args=${all%rx*} |
| local -r rx_args=${all#*rx} |
| |
| cfg_veth |
| |
| ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} && \ |
| echo "ok" || \ |
| echo "failed" & |
| |
| # Hack: let bg programs complete the startup |
| sleep 0.1 |
| ./udpgso_bench_tx ${tx_args} |
| ret=$? |
| wait $(jobs -p) |
| return $ret |
| } |
| |
| run_test() { |
| local -r args=$@ |
| |
| printf " %-40s" "$1" |
| ./in_netns.sh $0 __subprocess $2 rx -G -r $3 |
| } |
| |
| run_one_nat() { |
| # use 'rx' as separator between sender args and receiver args |
| local addr1 addr2 pid family="" ipt_cmd=ip6tables |
| local -r all="$@" |
| local -r tx_args=${all%rx*} |
| local -r rx_args=${all#*rx} |
| |
| if [[ ${tx_args} = *-4* ]]; then |
| ipt_cmd=iptables |
| family=-4 |
| addr1=192.168.1.1 |
| addr2=192.168.1.3/24 |
| else |
| addr1=2001:db8::1 |
| addr2="2001:db8::3/64 nodad" |
| fi |
| |
| cfg_veth |
| ip -netns "${PEER_NS}" addr add dev veth1 ${addr2} |
| |
| # fool the GRO engine changing the destination address ... |
| ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*} |
| |
| # ... so that GRO will match the UDP_GRO enabled socket, but packets |
| # will land on the 'plain' one |
| ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 & |
| pid=$! |
| ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${family} -b ${addr2%/*} ${rx_args} && \ |
| echo "ok" || \ |
| echo "failed"& |
| |
| sleep 0.1 |
| ./udpgso_bench_tx ${tx_args} |
| ret=$? |
| kill -INT $pid |
| wait $(jobs -p) |
| return $ret |
| } |
| |
| run_one_2sock() { |
| # use 'rx' as separator between sender args and receiver args |
| local -r all="$@" |
| local -r tx_args=${all%rx*} |
| local -r rx_args=${all#*rx} |
| |
| cfg_veth |
| |
| ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 10 ${rx_args} -p 12345 & |
| ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 10 ${rx_args} && \ |
| echo "ok" || \ |
| echo "failed" & |
| |
| # Hack: let bg programs complete the startup |
| sleep 0.1 |
| ./udpgso_bench_tx ${tx_args} -p 12345 |
| sleep 0.1 |
| # first UDP GSO socket should be closed at this point |
| ./udpgso_bench_tx ${tx_args} |
| ret=$? |
| wait $(jobs -p) |
| return $ret |
| } |
| |
| run_nat_test() { |
| local -r args=$@ |
| |
| printf " %-40s" "$1" |
| ./in_netns.sh $0 __subprocess_nat $2 rx -r $3 |
| } |
| |
| run_2sock_test() { |
| local -r args=$@ |
| |
| printf " %-40s" "$1" |
| ./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3 |
| } |
| |
| run_all() { |
| local -r core_args="-l 4" |
| local -r ipv4_args="${core_args} -4 -D 192.168.1.1" |
| local -r ipv6_args="${core_args} -6 -D 2001:db8::1" |
| ret=0 |
| |
| echo "ipv4" |
| run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400" |
| check_err $? |
| |
| # explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1) |
| # when GRO does not take place |
| run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1" |
| check_err $? |
| |
| # the GSO packets are aggregated because: |
| # * veth schedule napi after each xmit |
| # * segmentation happens in BH context, veth napi poll is delayed after |
| # the transmission of the last segment |
| run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720" |
| check_err $? |
| run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" |
| check_err $? |
| run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720" |
| check_err $? |
| run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500" |
| check_err $? |
| |
| run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472" |
| check_err $? |
| run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472" |
| check_err $? |
| |
| echo "ipv6" |
| run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400" |
| check_err $? |
| run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1" |
| check_err $? |
| run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520" |
| check_err $? |
| run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452" |
| check_err $? |
| run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520" |
| check_err $? |
| run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500" |
| check_err $? |
| |
| run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452" |
| check_err $? |
| run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452" |
| check_err $? |
| return $ret |
| } |
| |
| if [ ! -f ../bpf/xdp_dummy.o ]; then |
| echo "Missing xdp_dummy helper. Build bpf selftest first" |
| exit -1 |
| fi |
| |
| if [[ $# -eq 0 ]]; then |
| run_all |
| elif [[ $1 == "__subprocess" ]]; then |
| shift |
| run_one $@ |
| elif [[ $1 == "__subprocess_nat" ]]; then |
| shift |
| run_one_nat $@ |
| elif [[ $1 == "__subprocess_2sock" ]]; then |
| shift |
| run_one_2sock $@ |
| fi |
| |
| exit $? |