Commit 74307089 authored by Jeongjun Park's avatar Jeongjun Park Committed by Alexei Starovoitov
Browse files

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



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

Suggested-by: default avatarEduard Zingerman <eddyz87@gmail.com>
Signed-off-by: default avatarJeongjun Park <aha310510@gmail.com>
Link: https://lore.kernel.org/r/20240831054742.364585-1-aha310510@gmail.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarEduard Zingerman <eddyz87@gmail.com>
parent bb6705c3

tools/testing/selftests/bpf/prog_tests/btf.c

+34 −0
Original line number Diff line number Diff line
@@ -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 = {