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afef88e655
BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net
121 lines
3.2 KiB
Bash
Executable file
121 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Create 3 namespaces with 3 veth peers, and
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# forward packets in-between using native XDP
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#
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# XDP_TX
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# NS1(veth11) NS2(veth22) NS3(veth33)
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# | | |
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# | | |
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# (veth1, (veth2, (veth3,
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# id:111) id:122) id:133)
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# ^ | ^ | ^ |
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# | | XDP_REDIRECT | | XDP_REDIRECT | |
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# | ------------------ ------------------ |
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# -----------------------------------------
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# XDP_REDIRECT
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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TESTNAME=xdp_veth
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BPF_FS=$(awk '$3 == "bpf" {print $2; exit}' /proc/mounts)
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BPF_DIR=$BPF_FS/test_$TESTNAME
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readonly NS1="ns1-$(mktemp -u XXXXXX)"
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readonly NS2="ns2-$(mktemp -u XXXXXX)"
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readonly NS3="ns3-$(mktemp -u XXXXXX)"
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_cleanup()
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{
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set +e
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ip link del veth1 2> /dev/null
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ip link del veth2 2> /dev/null
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ip link del veth3 2> /dev/null
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ip netns del ${NS1} 2> /dev/null
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ip netns del ${NS2} 2> /dev/null
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ip netns del ${NS3} 2> /dev/null
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rm -rf $BPF_DIR 2> /dev/null
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}
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cleanup_skip()
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{
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echo "selftests: $TESTNAME [SKIP]"
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_cleanup
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exit $ksft_skip
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}
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cleanup()
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{
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if [ "$?" = 0 ]; then
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echo "selftests: $TESTNAME [PASS]"
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else
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echo "selftests: $TESTNAME [FAILED]"
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fi
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_cleanup
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}
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if [ $(id -u) -ne 0 ]; then
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echo "selftests: $TESTNAME [SKIP] Need root privileges"
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exit $ksft_skip
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fi
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if ! ip link set dev lo xdp off > /dev/null 2>&1; then
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echo "selftests: $TESTNAME [SKIP] Could not run test without the ip xdp support"
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exit $ksft_skip
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fi
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if [ -z "$BPF_FS" ]; then
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echo "selftests: $TESTNAME [SKIP] Could not run test without bpffs mounted"
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exit $ksft_skip
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fi
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if ! bpftool version > /dev/null 2>&1; then
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echo "selftests: $TESTNAME [SKIP] Could not run test without bpftool"
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exit $ksft_skip
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fi
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set -e
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trap cleanup_skip EXIT
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ip netns add ${NS1}
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ip netns add ${NS2}
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ip netns add ${NS3}
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ip link add veth1 index 111 type veth peer name veth11 netns ${NS1}
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ip link add veth2 index 122 type veth peer name veth22 netns ${NS2}
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ip link add veth3 index 133 type veth peer name veth33 netns ${NS3}
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ip link set veth1 up
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ip link set veth2 up
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ip link set veth3 up
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ip -n ${NS1} addr add 10.1.1.11/24 dev veth11
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ip -n ${NS3} addr add 10.1.1.33/24 dev veth33
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ip -n ${NS1} link set dev veth11 up
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ip -n ${NS2} link set dev veth22 up
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ip -n ${NS3} link set dev veth33 up
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mkdir $BPF_DIR
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bpftool prog loadall \
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xdp_redirect_map.bpf.o $BPF_DIR/progs type xdp \
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pinmaps $BPF_DIR/maps
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bpftool map update pinned $BPF_DIR/maps/tx_port key 0 0 0 0 value 122 0 0 0
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bpftool map update pinned $BPF_DIR/maps/tx_port key 1 0 0 0 value 133 0 0 0
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bpftool map update pinned $BPF_DIR/maps/tx_port key 2 0 0 0 value 111 0 0 0
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ip link set dev veth1 xdp pinned $BPF_DIR/progs/xdp_redirect_map_0
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ip link set dev veth2 xdp pinned $BPF_DIR/progs/xdp_redirect_map_1
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ip link set dev veth3 xdp pinned $BPF_DIR/progs/xdp_redirect_map_2
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ip -n ${NS1} link set dev veth11 xdp obj xdp_dummy.bpf.o sec xdp
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ip -n ${NS2} link set dev veth22 xdp obj xdp_tx.bpf.o sec xdp
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ip -n ${NS3} link set dev veth33 xdp obj xdp_dummy.bpf.o sec xdp
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trap cleanup EXIT
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ip netns exec ${NS1} ping -c 1 -W 1 10.1.1.33
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exit 0
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