diff options
| author | Cheng-Min Chiang <chmnchiang@google.com> | 2020-07-24 18:05:18 -0700 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-08-07 09:28:26 +0200 |
| commit | 20a3465b973bec140ff12740acffa6c357b27edc (patch) | |
| tree | 055bd8837d2f68319165366dfc273ea8b891a92c /sys/linux/test | |
| parent | cb436c69d9bcb0330518a48559649c9436ed5e7a (diff) | |
sys/linux: add descriptions for BPF LSM
This commit includes the following changes:
* executor: add a new syz_btf_id_by_name psuedo-syscall
* sys/linux: add descriptions for BPF LSM subsystem
* sys/linux: add instructions on how to dump vmlinux and install
bpftool
* sys/linux/test: add tests for the new psuedo-syscall
* pkg/host: add support detection for the new psuedo-syscall
* pkg/runtest: skip the coverage test when invoking the new
psuedo-syscall
Update #533.
Diffstat (limited to 'sys/linux/test')
| -rw-r--r-- | sys/linux/test/btf_id | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/linux/test/btf_id b/sys/linux/test/btf_id new file mode 100644 index 000000000..88c5a7cc9 --- /dev/null +++ b/sys/linux/test/btf_id @@ -0,0 +1,19 @@ +# Query the btf_id of the hook name. + +r0 = syz_btf_id_by_name$bpf_lsm(&AUTO='bpf_lsm_path_mkdir\x00') + +# Load the bpf program. + +r1 = bpf$BPF_LSM_PROG_LOAD(0x5, &AUTO={0x1d, AUTO, &AUTO=@framed={{AUTO, AUTO, AUTO, AUTO, 0x0, AUTO, AUTO, AUTO, 0x0}, [], {AUTO, AUTO, AUTO, AUTO}}, &AUTO='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x0, 0x1b, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, r0, 0x0}, 0x78) + +# Attach the bpf program to the lsm hook. + +r2 = bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &AUTO={0x0, r1}, 0x10) + +# Run again to test that memorization works. + +r3 = syz_btf_id_by_name$bpf_lsm(&AUTO='bpf_lsm_path_mkdir\x00') + +r4 = bpf$BPF_LSM_PROG_LOAD(0x5, &AUTO={0x1d, AUTO, &AUTO=@framed={{AUTO, AUTO, AUTO, AUTO, 0x0, AUTO, AUTO, AUTO, 0x0}, [], {AUTO, AUTO, AUTO, AUTO}}, &AUTO='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x0, 0x1b, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, r3, 0x0}, 0x78) + +r5 = bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &AUTO={0x0, r4}, 0x10) |