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| author | John Fastabend <john.fastabend@gmail.com> | 2018-12-16 15:47:06 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-12-19 00:27:23 +0100 |
| commit | 945a47d87cee24a95e11fdc0cd868b872f9b9616 (patch) | |
| tree | 70590ac2bacf2a40aec88e06aca9e924e48695ef | |
| parent | 584e46813e689ff1a348343b73122c43d81d0ef7 (diff) | |
bpf: sk_msg, add tests for size field
This adds tests to read the size field to test_verifier.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | tools/testing/selftests/bpf/test_verifier.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index cf242734e2eb..7865b94c02c4 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -1843,10 +1843,20 @@ static struct bpf_test tests[] = { .prog_type = BPF_PROG_TYPE_SK_SKB, }, { - "invalid 64B read of family in SK_MSG", + "valid access size in SK_MSG", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, + offsetof(struct sk_msg_md, size)), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_SK_MSG, + }, + { + "invalid 64B read of size in SK_MSG", .insns = { BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, - offsetof(struct sk_msg_md, family)), + offsetof(struct sk_msg_md, size)), BPF_EXIT_INSN(), }, .errstr = "invalid bpf_context access", @@ -1857,7 +1867,7 @@ static struct bpf_test tests[] = { "invalid read past end of SK_MSG", .insns = { BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, - offsetof(struct sk_msg_md, local_port) + 4), + offsetof(struct sk_msg_md, size) + 4), BPF_EXIT_INSN(), }, .errstr = "R0 !read_ok", |