1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3
4 # Kselftest framework requirement - SKIP code is 4.
5 ksft_skip=4
6
7 BPF_FILE_USED="metadata_used.bpf.o"
8 BPF_FILE_UNUSED="metadata_unused.bpf.o"
9
10 TESTNAME=bpftool_metadata
11 BPF_FS=$(awk '$3 == "bpf" {print $2; exit}' /proc/mounts)
12 BPF_DIR=$BPF_FS/test_$TESTNAME
13
14 _cleanup()
15 {
16 set +e
17 rm -rf $BPF_DIR 2> /dev/null
18 }
19
20 cleanup_skip()
21 {
22 echo "selftests: $TESTNAME [SKIP]"
23 _cleanup
24
25 exit $ksft_skip
26 }
27
28 cleanup()
29 {
30 if [ "$?" = 0 ]; then
31 echo "selftests: $TESTNAME [PASS]"
32 else
33 echo "selftests: $TESTNAME [FAILED]"
34 fi
35 _cleanup
36 }
37
38 if [ $(id -u) -ne 0 ]; then
39 echo "selftests: $TESTNAME [SKIP] Need root privileges"
40 exit $ksft_skip
41 fi
42
43 if [ -z "$BPF_FS" ]; then
44 echo "selftests: $TESTNAME [SKIP] Could not run test without bpffs mounted"
45 exit $ksft_skip
46 fi
47
48 if ! bpftool version > /dev/null 2>&1; then
49 echo "selftests: $TESTNAME [SKIP] Could not run test without bpftool"
50 exit $ksft_skip
51 fi
52
53 set -e
54
55 trap cleanup_skip EXIT
56
57 mkdir $BPF_DIR
58
59 trap cleanup EXIT
60
61 bpftool prog load $BPF_FILE_UNUSED $BPF_DIR/unused
62
63 METADATA_PLAIN="$(bpftool prog)"
64 echo "$METADATA_PLAIN" | grep 'a = "foo"' > /dev/null
65 echo "$METADATA_PLAIN" | grep 'b = 1' > /dev/null
66
67 bpftool prog --json | grep '"metadata":{"a":"foo","b":1}' > /dev/null
68
69 bpftool map | grep 'metadata.rodata' > /dev/null
70
71 rm $BPF_DIR/unused
72
73 bpftool prog load $BPF_FILE_USED $BPF_DIR/used
74
75 METADATA_PLAIN="$(bpftool prog)"
76 echo "$METADATA_PLAIN" | grep 'a = "bar"' > /dev/null
77 echo "$METADATA_PLAIN" | grep 'b = 2' > /dev/null
78
79 bpftool prog --json | grep '"metadata":{"a":"bar","b":2}' > /dev/null
80
81 bpftool map | grep 'metadata.rodata' > /dev/null
82
83 rm $BPF_DIR/used
84
85 exit 0
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