name : test_bpftool_metadata.sh #!/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