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selftests/bpf: Add a selftest to check for incorrect names

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Add selftest for cases where btf_name_valid_section() does not properly
check for certain types of names.

Suggested-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Jeongjun Park <aha310510@gmail.com>
Link: https://lore.kernel.org/r/20240831054742.364585-1-aha310510@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
This commit is contained in:
Jeongjun Park 2024-08-31 14:47:42 +09:00 committed by Alexei Starovoitov
parent bb6705c3f9
commit 7430708947
1 changed files with 34 additions and 0 deletions
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34
tools/testing/selftests/bpf/prog_tests/btf.c
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@ -3550,6 +3550,40 @@ static struct btf_raw_test raw_tests[] = {
},
BTF_STR_SEC("\0x\0?.foo bar:buz"),
},
{
.descr = "datasec: name with non-printable first char not is ok",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* VAR x */ /* [2] */
BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1),
BTF_VAR_STATIC,
/* DATASEC ?.data */ /* [3] */
BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
BTF_STR_SEC("\0x\0\7foo"),
.err_str = "Invalid name",
.btf_load_err = true,
},
{
.descr = "datasec: name '\\0' is not ok",
.raw_types = {
/* int */
BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
/* VAR x */ /* [2] */
BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1),
BTF_VAR_STATIC,
/* DATASEC \0 */ /* [3] */
BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
BTF_VAR_SECINFO_ENC(2, 0, 4),
BTF_END_RAW,
},
BTF_STR_SEC("\0x\0"),
.err_str = "Invalid name",
.btf_load_err = true,
},
{
.descr = "type name '?foo' is not ok",
.raw_types = {