[PATCH bpf v4 08/14] bpf/tests: Add test case flag for verifier zero-extension
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STALE1851d
LANDED
From: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Date: 2021-09-14 09:19:28
Also in:
bpf
Subsystem:
bpf [general] (safe dynamic programs and tools), library code, the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Andrew Morton, Linus Torvalds
Revision v4 of 4 in this series; landed in mainline as 27cc6dac6ec8 on 2021-09-28.
Revisions (4)
- v1 [diff vs current]
- v2 [diff vs current]
- v3 [diff vs current]
- v4 current
This patch adds a new flag to indicate that the verified did insert zero-extensions, even though the verifier is not being run for any of the tests. Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com> --- lib/test_bpf.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 6a04447171c7..26f7c244c78a 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c@@ -52,6 +52,7 @@ #define FLAG_NO_DATA BIT(0) #define FLAG_EXPECTED_FAIL BIT(1) #define FLAG_SKB_FRAG BIT(2) +#define FLAG_VERIFIER_ZEXT BIT(3) enum { CLASSIC = BIT(6), /* Old BPF instructions only. */
@@ -11280,6 +11281,8 @@ static struct bpf_prog *generate_filter(int which, int *err) fp->type = BPF_PROG_TYPE_SOCKET_FILTER; memcpy(fp->insnsi, fptr, fp->len * sizeof(struct bpf_insn)); fp->aux->stack_depth = tests[which].stack_depth; + fp->aux->verifier_zext = !!(tests[which].aux & + FLAG_VERIFIER_ZEXT); /* We cannot error here as we don't need type compatibility * checks.
--
2.30.2