FM / bpf

/usr/src/linux-headers-5.15.0-190/tools/testing/selftests/bpf

Name	Size	Mode	Actions
benchs/	-	0755	rm
bpf_testmod/	-	0755	rm
ima_setup.sh	2515	0755	edit dl rm
Makefile	20073	0644	edit dl rm
Makefile.docs	2239	0644	edit dl rm
test_bpftool.sh	415	0755	edit dl rm
test_bpftool_build.sh	3707	0755	edit dl rm
test_bpftool_metadata.sh	1597	0755	edit dl rm
test_doc_build.sh	638	0755	edit dl rm
test_flow_dissector.sh	5243	0755	edit dl rm
test_ftrace.sh	701	0755	edit dl rm
test_kmod.sh	1318	0755	edit dl rm
test_lirc_mode2.sh	764	0755	edit dl rm
test_lwt_ip_encap.sh	14931	0755	edit dl rm
test_lwt_seg6local.sh	5808	0755	edit dl rm
test_skb_cgroup_id.sh	1349	0755	edit dl rm
test_sock_addr.sh	1105	0755	edit dl rm
test_tcp_check_syncookie.sh	1715	0755	edit dl rm
test_tc_edt.sh	2784	0755	edit dl rm
test_tc_tunnel.sh	7925	0755	edit dl rm
test_tunnel.sh	19320	0755	edit dl rm
test_xdping.sh	2077	0755	edit dl rm
test_xdp_meta.sh	1257	0755	edit dl rm
test_xdp_redirect.sh	1715	0755	edit dl rm
test_xdp_redirect_multi.sh	6321	0755	edit dl rm
test_xdp_veth.sh	3099	0755	edit dl rm
test_xdp_vlan.sh	5743	0755	edit dl rm
test_xdp_vlan_mode_generic.sh	186	0755	edit dl rm
test_xdp_vlan_mode_native.sh	180	0755	edit dl rm
test_xsk.sh	4430	0755	edit dl rm
vmtest.sh	9584	0755	edit dl rm
with_addr.sh	1296	0755	edit dl rm
with_tunnels.sh	693	0755	edit dl rm
xsk_prereqs.sh	1815	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/tools/testing/selftests/bpf/test_bpftool_metadata.sh (1597B)

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

TESTNAME=bpftool_metadata
BPF_FS=$(awk '$3 == "bpf" {print $2; exit}' /proc/mounts)
BPF_DIR=$BPF_FS/test_$TESTNAME

_cleanup()
{
	set +e
	rm -rf $BPF_DIR 2> /dev/null
}

cleanup_skip()
{
	echo "selftests: $TESTNAME [SKIP]"
	_cleanup

exit $ksft_skip
}

cleanup()
{
	if [ "$?" = 0 ]; then
		echo "selftests: $TESTNAME [PASS]"
	else
		echo "selftests: $TESTNAME [FAILED]"
	fi
	_cleanup
}

if [ $(id -u) -ne 0 ]; then
	echo "selftests: $TESTNAME [SKIP] Need root privileges"
	exit $ksft_skip
fi

if [ -z "$BPF_FS" ]; then
	echo "selftests: $TESTNAME [SKIP] Could not run test without bpffs mounted"
	exit $ksft_skip
fi

if ! bpftool version > /dev/null 2>&1; then
	echo "selftests: $TESTNAME [SKIP] Could not run test without bpftool"
	exit $ksft_skip
fi

set -e

trap cleanup_skip EXIT

mkdir $BPF_DIR

trap cleanup EXIT

bpftool prog load metadata_unused.o $BPF_DIR/unused

METADATA_PLAIN="$(bpftool prog)"
echo "$METADATA_PLAIN" | grep 'a = "foo"' > /dev/null
echo "$METADATA_PLAIN" | grep 'b = 1' > /dev/null

bpftool prog --json | grep '"metadata":{"a":"foo","b":1}' > /dev/null

bpftool map | grep 'metadata.rodata' > /dev/null

rm $BPF_DIR/unused

bpftool prog load metadata_used.o $BPF_DIR/used

METADATA_PLAIN="$(bpftool prog)"
echo "$METADATA_PLAIN" | grep 'a = "bar"' > /dev/null
echo "$METADATA_PLAIN" | grep 'b = 2' > /dev/null

bpftool prog --json | grep '"metadata":{"a":"bar","b":2}' > /dev/null

bpftool map | grep 'metadata.rodata' > /dev/null

rm $BPF_DIR/used

exit 0

cmd: