diff options
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/ctx.c')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/ctx.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/ctx.c b/tools/testing/selftests/bpf/verifier/ctx.c new file mode 100644 index 000000000000..0d623af34471 --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/ctx.c @@ -0,0 +1,23 @@ +{ + "context stores via ST", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_ST_MEM(BPF_DW, BPF_REG_1, offsetof(struct __sk_buff, mark), 0), + BPF_EXIT_INSN(), + }, + .errstr = "BPF_ST stores into R1 ctx is not allowed", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, +}, +{ + "context stores via XADD", + .insns = { + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_W, BPF_REG_1, + BPF_REG_0, offsetof(struct __sk_buff, mark), 0), + BPF_EXIT_INSN(), + }, + .errstr = "BPF_XADD stores into R1 ctx is not allowed", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, +}, |