From cd9de5d3d64b472f67a5ac8520f79ce42f7583b8 Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Sat, 15 Dec 2018 22:13:55 -0800 Subject: tools/bpf: add test_btf unit tests for kind_flag This patch added unit tests for different types handling type->info.kind_flag. The following new tests are added: $ test_btf ... BTF raw test[82] (invalid int kind_flag): OK BTF raw test[83] (invalid ptr kind_flag): OK BTF raw test[84] (invalid array kind_flag): OK BTF raw test[85] (invalid enum kind_flag): OK BTF raw test[86] (valid fwd kind_flag): OK BTF raw test[87] (invalid typedef kind_flag): OK BTF raw test[88] (invalid volatile kind_flag): OK BTF raw test[89] (invalid const kind_flag): OK BTF raw test[90] (invalid restrict kind_flag): OK BTF raw test[91] (invalid func kind_flag): OK BTF raw test[92] (invalid func_proto kind_flag): OK BTF raw test[93] (valid struct kind_flag, bitfield_size = 0): OK BTF raw test[94] (valid struct kind_flag, int member, bitfield_size != 0): OK BTF raw test[95] (valid union kind_flag, int member, bitfield_size != 0): OK BTF raw test[96] (valid struct kind_flag, enum member, bitfield_size != 0): OK BTF raw test[97] (valid union kind_flag, enum member, bitfield_size != 0): OK BTF raw test[98] (valid struct kind_flag, typedef member, bitfield_size != 0): OK BTF raw test[99] (valid union kind_flag, typedef member, bitfield_size != 0): OK BTF raw test[100] (invalid struct type, bitfield_size greater than struct size): OK BTF raw test[101] (invalid struct type, kind_flag bitfield base_type int not regular): OK BTF raw test[102] (invalid struct type, kind_flag base_type int not regular): OK BTF raw test[103] (invalid union type, bitfield_size greater than struct size): OK ... PASS:122 SKIP:0 FAIL:0 The second parameter name of macro BTF_INFO_ENC(kind, root, vlen) in selftests test_btf.c is also renamed from "root" to "kind_flag". Note that before this patch "root" is not used and always 0. Acked-by: Martin KaFai Lau Signed-off-by: Yonghong Song Signed-off-by: Daniel Borkmann --- tools/testing/selftests/bpf/test_btf.c | 496 ++++++++++++++++++++++++++++++++- 1 file changed, 494 insertions(+), 2 deletions(-) (limited to 'tools/testing') diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c index 8478316aaf9a..5346d1fa8a4d 100644 --- a/tools/testing/selftests/bpf/test_btf.c +++ b/tools/testing/selftests/bpf/test_btf.c @@ -65,8 +65,8 @@ static int __base_pr(const char *format, ...) return err; } -#define BTF_INFO_ENC(kind, root, vlen) \ - ((!!(root) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN)) +#define BTF_INFO_ENC(kind, kind_flag, vlen) \ + ((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN)) #define BTF_TYPE_ENC(name, info, size_or_type) \ (name), (info), (size_or_type) @@ -86,6 +86,8 @@ static int __base_pr(const char *format, ...) #define BTF_MEMBER_ENC(name, type, bits_offset) \ (name), (type), (bits_offset) #define BTF_ENUM_ENC(name, val) (name), (val) +#define BTF_MEMBER_OFFSET(bitfield_size, bits_offset) \ + ((bitfield_size) << 24 | (bits_offset)) #define BTF_TYPEDEF_ENC(name, type) \ BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), type) @@ -2215,6 +2217,496 @@ static struct btf_raw_test raw_tests[] = { .err_str = "Invalid type_id", }, +{ + .descr = "invalid int kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 1, 0), 4), /* [2] */ + BTF_INT_ENC(0, 0, 32), + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "int_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid ptr kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "ptr_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid array kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 1, 0), 0), /* [2] */ + BTF_ARRAY_ENC(1, 1, 1), + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "array_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid enum kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 1, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "enum_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "valid fwd kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "fwd_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "invalid typedef kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(NAME_TBD, + BTF_INFO_ENC(BTF_KIND_TYPEDEF, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "typedef_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid volatile kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "volatile_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid const kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "const_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid restrict kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 1, 0), 1), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "restrict_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid func kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 0), 0), /* [2] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 1, 0), 2), /* [3] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "invalid func_proto kind_flag", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 1, 0), 0), /* [2] */ + BTF_END_RAW, + }, + BTF_STR_SEC(""), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "func_proto_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid btf_info kind_flag", +}, + +{ + .descr = "valid struct, kind_flag, bitfield_size = 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 8), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 32)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, int member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 4)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, int member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, enum member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 4)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, enum member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid struct, kind_flag, typedef member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 4)), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "valid union, kind_flag, typedef member, bitfield_size != 0", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)), + BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 0)), + BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [4] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [5] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C\0D\0E"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, +}, + +{ + .descr = "invalid struct, kind_flag, bitfield_size greater than struct size", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 20)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +{ + .descr = "invalid struct, kind_flag, bitfield base_type int not regular", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 20, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 20)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member base type", +}, + +{ + .descr = "invalid struct, kind_flag, base_type int not regular", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 12, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 8)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member base type", +}, + +{ + .descr = "invalid union, kind_flag, bitfield_size greater than struct size", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 2), /* [2] */ + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(8, 0)), + BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "union_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Member exceeds struct_size", +}, + +{ + .descr = "invalid struct, kind_flag, int member, bitfield_size = 0, wrong byte alignment", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member offset", +}, + +{ + .descr = "invalid struct, kind_flag, enum member, bitfield_size = 0, wrong byte alignment", + .raw_types = { + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ + BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4), /* [2] */ + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12), /* [3] */ + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)), + BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)), + BTF_END_RAW, + }, + BTF_STR_SEC("\0A\0B\0C"), + .map_type = BPF_MAP_TYPE_ARRAY, + .map_name = "struct_type_check_btf", + .key_size = sizeof(int), + .value_size = sizeof(int), + .key_type_id = 1, + .value_type_id = 1, + .max_entries = 4, + .btf_load_err = true, + .err_str = "Invalid member offset", +}, + }; /* struct btf_raw_test raw_tests[] */ static const char *get_next_str(const char *start, const char *end) -- cgit v1.3-14-g43fede From d0ebce687edc5d5a899b3de6b1adbfa0c5b64021 Mon Sep 17 00:00:00 2001 From: Yonghong Song Date: Sat, 15 Dec 2018 22:13:56 -0800 Subject: tools/bpf: test kernel bpffs map pretty print with struct kind_flag The new tests are added to test bpffs map pretty print in kernel with kind_flag for structure type. $ test_btf -p ...... BTF pretty print array(#1)......OK BTF pretty print array(#2)......OK PASS:8 SKIP:0 FAIL:0 Acked-by: Martin KaFai Lau Signed-off-by: Yonghong Song Signed-off-by: Daniel Borkmann --- tools/testing/selftests/bpf/test_btf.c | 168 ++++++++++++++++++++++++++++++--- 1 file changed, 154 insertions(+), 14 deletions(-) (limited to 'tools/testing') diff --git a/tools/testing/selftests/bpf/test_btf.c b/tools/testing/selftests/bpf/test_btf.c index 5346d1fa8a4d..b783aa2212cc 100644 --- a/tools/testing/selftests/bpf/test_btf.c +++ b/tools/testing/selftests/bpf/test_btf.c @@ -3528,7 +3528,8 @@ struct pprint_mapv { } aenum; }; -static struct btf_raw_test pprint_test_template = { +static struct btf_raw_test pprint_test_template[] = { +{ .raw_types = { /* unsighed char */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), @@ -3578,13 +3579,140 @@ static struct btf_raw_test pprint_test_template = { BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ BTF_END_RAW, }, - .str_sec = "\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum", - .str_sec_size = sizeof("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum"), + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv), + .key_type_id = 3, /* unsigned int */ + .value_type_id = 16, /* struct pprint_mapv */ + .max_entries = 128 * 1024, +}, + +{ + /* this type will have the same type as the + * first .raw_types definition, but struct type will + * be encoded with kind_flag set. + */ + .raw_types = { + /* unsighed char */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), + /* unsigned short */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), + /* unsigned int */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* int */ /* [4] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned long long */ /* [5] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ + /* uint8_t[8] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(9, 1, 8), + /* typedef unsigned char uint8_t */ /* [9] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), + /* typedef unsigned short uint16_t */ /* [10] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), + /* typedef unsigned int uint32_t */ /* [11] */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), + /* typedef int int32_t */ /* [12] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* typedef unsigned long long uint64_t *//* [13] */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), + /* union (anon) */ /* [14] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ + BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ + /* enum (anon) */ /* [15] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_ENUM_ENC(NAME_TBD, 2), + BTF_ENUM_ENC(NAME_TBD, 3), + /* struct pprint_mapv */ /* [16] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 8), 32), + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ + BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ + BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ + BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ + BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ + BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)), /* unused_bits2b */ + BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ + BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum"), .key_size = sizeof(unsigned int), .value_size = sizeof(struct pprint_mapv), .key_type_id = 3, /* unsigned int */ .value_type_id = 16, /* struct pprint_mapv */ .max_entries = 128 * 1024, +}, + +{ + /* this type will have the same layout as the + * first .raw_types definition. The struct type will + * be encoded with kind_flag set, bitfield members + * are added typedef/const/volatile, and bitfield members + * will have both int and enum types. + */ + .raw_types = { + /* unsighed char */ /* [1] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1), + /* unsigned short */ /* [2] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2), + /* unsigned int */ /* [3] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), + /* int */ /* [4] */ + BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), + /* unsigned long long */ /* [5] */ + BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [6] */ + BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [7] */ + /* uint8_t[8] */ /* [8] */ + BTF_TYPE_ARRAY_ENC(9, 1, 8), + /* typedef unsigned char uint8_t */ /* [9] */ + BTF_TYPEDEF_ENC(NAME_TBD, 1), + /* typedef unsigned short uint16_t */ /* [10] */ + BTF_TYPEDEF_ENC(NAME_TBD, 2), + /* typedef unsigned int uint32_t */ /* [11] */ + BTF_TYPEDEF_ENC(NAME_TBD, 3), + /* typedef int int32_t */ /* [12] */ + BTF_TYPEDEF_ENC(NAME_TBD, 4), + /* typedef unsigned long long uint64_t *//* [13] */ + BTF_TYPEDEF_ENC(NAME_TBD, 5), + /* union (anon) */ /* [14] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8), + BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */ + BTF_MEMBER_ENC(NAME_TBD, 8, 0), /* uint8_t ui8a[8]; */ + /* enum (anon) */ /* [15] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4), + BTF_ENUM_ENC(NAME_TBD, 0), + BTF_ENUM_ENC(NAME_TBD, 1), + BTF_ENUM_ENC(NAME_TBD, 2), + BTF_ENUM_ENC(NAME_TBD, 3), + /* struct pprint_mapv */ /* [16] */ + BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 8), 32), + BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)), /* uint32_t ui32 */ + BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)), /* uint16_t ui16 */ + BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)), /* int32_t si32 */ + BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)), /* unused_bits2a */ + BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)), /* bits28 */ + BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */ + BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)), /* union (anon) */ + BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)), /* aenum */ + /* typedef unsigned int ___int */ /* [17] */ + BTF_TYPEDEF_ENC(NAME_TBD, 18), + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6), /* [18] */ + BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15), /* [19] */ + BTF_END_RAW, + }, + BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0___int"), + .key_size = sizeof(unsigned int), + .value_size = sizeof(struct pprint_mapv), + .key_type_id = 3, /* unsigned int */ + .value_type_id = 16, /* struct pprint_mapv */ + .max_entries = 128 * 1024, +}, + }; static struct btf_pprint_test_meta { @@ -3687,9 +3815,9 @@ static int check_line(const char *expected_line, int nexpected_line, } -static int do_test_pprint(void) +static int do_test_pprint(int test_num) { - const struct btf_raw_test *test = &pprint_test_template; + const struct btf_raw_test *test = &pprint_test_template[test_num]; struct bpf_create_map_attr create_attr = {}; bool ordered_map, lossless_map, percpu_map; int err, ret, num_cpus, rounded_value_size; @@ -3705,7 +3833,7 @@ static int do_test_pprint(void) uint8_t *raw_btf; ssize_t nread; - fprintf(stderr, "%s......", test->descr); + fprintf(stderr, "%s(#%d)......", test->descr, test_num); raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, NULL); @@ -3898,15 +4026,27 @@ static int test_pprint(void) unsigned int i; int err = 0; + /* test various maps with the first test template */ for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) { - pprint_test_template.descr = pprint_tests_meta[i].descr; - pprint_test_template.map_type = pprint_tests_meta[i].map_type; - pprint_test_template.map_name = pprint_tests_meta[i].map_name; - pprint_test_template.ordered_map = pprint_tests_meta[i].ordered_map; - pprint_test_template.lossless_map = pprint_tests_meta[i].lossless_map; - pprint_test_template.percpu_map = pprint_tests_meta[i].percpu_map; - - err |= count_result(do_test_pprint()); + pprint_test_template[0].descr = pprint_tests_meta[i].descr; + pprint_test_template[0].map_type = pprint_tests_meta[i].map_type; + pprint_test_template[0].map_name = pprint_tests_meta[i].map_name; + pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map; + pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map; + pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map; + + err |= count_result(do_test_pprint(0)); + } + + /* test rest test templates with the first map */ + for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) { + pprint_test_template[i].descr = pprint_tests_meta[0].descr; + pprint_test_template[i].map_type = pprint_tests_meta[0].map_type; + pprint_test_template[i].map_name = pprint_tests_meta[0].map_name; + pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map; + pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map; + pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map; + err |= count_result(do_test_pprint(i)); } return err; -- cgit v1.3-14-g43fede