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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
BPF_FILE_USED="metadata_used.bpf.o"
BPF_FILE_UNUSED="metadata_unused.bpf.o"
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 $BPF_FILE_UNUSED $BPF_DIR/unused
METADATA_PLAIN="$(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 $BPF_FILE_USED $BPF_DIR/used
METADATA_PLAIN="$(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