| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Martin KaFai Lau | 17881 | 67.16% | 16 | 55.17% |
| Yonghong Song | 8741 | 32.83% | 12 | 41.38% |
| Colin Ian King | 1 | 0.00% | 1 | 3.45% |
| Total | 26623 | 29 |
/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2018 Facebook */ #include <linux/bpf.h> #include <linux/btf.h> #include <linux/err.h> #include <linux/kernel.h> #include <linux/filter.h> #include <linux/unistd.h> #include <bpf/bpf.h> #include <sys/resource.h> #include <libelf.h> #include <gelf.h> #include <string.h> #include <stdlib.h> #include <stdio.h> #include <stdarg.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <bpf/libbpf.h> #include <bpf/btf.h> #include "bpf_rlimit.h" #include "bpf_util.h" #define MAX_INSNS 512 #define MAX_SUBPROGS 16 static uint32_t pass_cnt; static uint32_t error_cnt; static uint32_t skip_cnt; #define CHECK(condition, format...) ({ \ int __ret = !!(condition); \ if (__ret) { \ fprintf(stderr, "%s:%d:FAIL ", __func__, __LINE__); \ fprintf(stderr, format); \ } \ __ret; \ }) static int count_result(int err) { if (err) error_cnt++; else pass_cnt++; fprintf(stderr, "\n"); return err; } #define __printf(a, b) __attribute__((format(printf, a, b))) __printf(1, 2) static int __base_pr(const char *format, ...) { va_list args; int err; va_start(args, format); err = vfprintf(stderr, format, args); va_end(args); return err; } #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) #define BTF_INT_ENC(encoding, bits_offset, nr_bits) \ ((encoding) << 24 | (bits_offset) << 16 | (nr_bits)) #define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \ BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \ BTF_INT_ENC(encoding, bits_offset, bits) #define BTF_ARRAY_ENC(type, index_type, nr_elems) \ (type), (index_type), (nr_elems) #define BTF_TYPE_ARRAY_ENC(type, index_type, nr_elems) \ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), \ BTF_ARRAY_ENC(type, index_type, nr_elems) #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) #define BTF_PTR_ENC(type) \ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), type) #define BTF_CONST_ENC(type) \ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), type) #define BTF_FUNC_PROTO_ENC(ret_type, nargs) \ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, nargs), ret_type) #define BTF_FUNC_PROTO_ARG_ENC(name, type) \ (name), (type) #define BTF_FUNC_ENC(name, func_proto) \ BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 0), func_proto) #define BTF_END_RAW 0xdeadbeef #define NAME_TBD 0xdeadb33f #define MAX_NR_RAW_U32 1024 #define BTF_LOG_BUF_SIZE 65535 static struct args { unsigned int raw_test_num; unsigned int file_test_num; unsigned int get_info_test_num; unsigned int info_raw_test_num; bool raw_test; bool file_test; bool get_info_test; bool pprint_test; bool always_log; bool info_raw_test; } args; static char btf_log_buf[BTF_LOG_BUF_SIZE]; static struct btf_header hdr_tmpl = { .magic = BTF_MAGIC, .version = BTF_VERSION, .hdr_len = sizeof(struct btf_header), }; struct btf_raw_test { const char *descr; const char *str_sec; const char *map_name; const char *err_str; __u32 raw_types[MAX_NR_RAW_U32]; __u32 str_sec_size; enum bpf_map_type map_type; __u32 key_size; __u32 value_size; __u32 key_type_id; __u32 value_type_id; __u32 max_entries; bool btf_load_err; bool map_create_err; bool ordered_map; bool lossless_map; bool percpu_map; int hdr_len_delta; int type_off_delta; int str_off_delta; int str_len_delta; }; #define BTF_STR_SEC(str) \ .str_sec = str, .str_sec_size = sizeof(str) static struct btf_raw_test raw_tests[] = { /* enum E { * E0, * E1, * }; * * struct A { * unsigned long long m; * int n; * char o; * [3 bytes hole] * int p[8]; * int q[4][8]; * enum E r; * }; */ { .descr = "struct test #1", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* unsigned long long */ BTF_TYPE_INT_ENC(0, 0, 0, 64, 8), /* [2] */ /* char */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1), /* [3] */ /* int[8] */ BTF_TYPE_ARRAY_ENC(1, 1, 8), /* [4] */ /* struct A { */ /* [5] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 6), 180), BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* unsigned long long m;*/ BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n; */ BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o; */ BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8] */ BTF_MEMBER_ENC(NAME_TBD, 6, 384),/* int q[4][8] */ BTF_MEMBER_ENC(NAME_TBD, 7, 1408), /* enum E r */ /* } */ /* int[4][8] */ BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [6] */ /* enum E */ /* [7] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), BTF_ENUM_ENC(NAME_TBD, 0), BTF_ENUM_ENC(NAME_TBD, 1), BTF_END_RAW, }, .str_sec = "\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1", .str_sec_size = sizeof("\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "struct_test1_map", .key_size = sizeof(int), .value_size = 180, .key_type_id = 1, .value_type_id = 5, .max_entries = 4, }, /* typedef struct b Struct_B; * * struct A { * int m; * struct b n[4]; * const Struct_B o[4]; * }; * * struct B { * int m; * int n; * }; */ { .descr = "struct test #2", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* struct b [4] */ /* [2] */ BTF_TYPE_ARRAY_ENC(4, 1, 4), /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 3), 68), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct B n[4] */ BTF_MEMBER_ENC(NAME_TBD, 8, 288),/* const Struct_B o[4];*/ /* } */ /* struct B { */ /* [4] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ /* } */ /* const int */ /* [5] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), /* typedef struct b Struct_B */ /* [6] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 4), /* const Struct_B */ /* [7] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 6), /* const Struct_B [4] */ /* [8] */ BTF_TYPE_ARRAY_ENC(7, 1, 4), BTF_END_RAW, }, .str_sec = "\0A\0m\0n\0o\0B\0m\0n\0Struct_B", .str_sec_size = sizeof("\0A\0m\0n\0o\0B\0m\0n\0Struct_B"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "struct_test2_map", .key_size = sizeof(int), .value_size = 68, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, }, { .descr = "struct test #3 Invalid member offset", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int64 */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8), /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 16), BTF_MEMBER_ENC(NAME_TBD, 1, 64), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* int64 n; */ /* } */ BTF_END_RAW, }, .str_sec = "\0A\0m\0n\0", .str_sec_size = sizeof("\0A\0m\0n\0"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "struct_test3_map", .key_size = sizeof(int), .value_size = 16, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Invalid member bits_offset", }, /* Test member exceeds the size of struct. * * struct A { * int m; * int n; * }; */ { .descr = "size check test #1", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* struct A { */ /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */ /* } */ BTF_END_RAW, }, .str_sec = "\0A\0m\0n", .str_sec_size = sizeof("\0A\0m\0n"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "size_check1_map", .key_size = sizeof(int), .value_size = 1, .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Member exceeds struct_size", }, /* Test member exeeds the size of struct * * struct A { * int m; * int n[2]; * }; */ { .descr = "size check test #2", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), /* int[2] */ /* [2] */ BTF_TYPE_ARRAY_ENC(1, 1, 2), /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 3 - 1), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* int n[2]; */ /* } */ BTF_END_RAW, }, .str_sec = "\0A\0m\0n", .str_sec_size = sizeof("\0A\0m\0n"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "size_check2_map", .key_size = sizeof(int), .value_size = 1, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Member exceeds struct_size", }, /* Test member exeeds the size of struct * * struct A { * int m; * void *n; * }; */ { .descr = "size check test #3", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), /* void* */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) + sizeof(void *) - 1), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* void *n; */ /* } */ BTF_END_RAW, }, .str_sec = "\0A\0m\0n", .str_sec_size = sizeof("\0A\0m\0n"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "size_check3_map", .key_size = sizeof(int), .value_size = 1, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Member exceeds struct_size", }, /* Test member exceeds the size of struct * * enum E { * E0, * E1, * }; * * struct A { * int m; * enum E n; * }; */ { .descr = "size check test #4", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)), /* enum E { */ /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)), BTF_ENUM_ENC(NAME_TBD, 0), BTF_ENUM_ENC(NAME_TBD, 1), /* } */ /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* enum E n; */ /* } */ BTF_END_RAW, }, .str_sec = "\0E\0E0\0E1\0A\0m\0n", .str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "size_check4_map", .key_size = sizeof(int), .value_size = 1, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Member exceeds struct_size", }, /* typedef const void * const_void_ptr; * struct A { * const_void_ptr m; * }; */ { .descr = "void test #1", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), /* const void* */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), /* typedef const void * const_void_ptr */ BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ /* struct A { */ /* [5] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), /* const_void_ptr m; */ BTF_MEMBER_ENC(NAME_TBD, 4, 0), /* } */ BTF_END_RAW, }, .str_sec = "\0const_void_ptr\0A\0m", .str_sec_size = sizeof("\0const_void_ptr\0A\0m"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "void_test1_map", .key_size = sizeof(int), .value_size = sizeof(void *), .key_type_id = 1, .value_type_id = 4, .max_entries = 4, }, /* struct A { * const void m; * }; */ { .descr = "void test #2", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), /* struct A { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 8), /* const void m; */ BTF_MEMBER_ENC(NAME_TBD, 2, 0), /* } */ BTF_END_RAW, }, .str_sec = "\0A\0m", .str_sec_size = sizeof("\0A\0m"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "void_test2_map", .key_size = sizeof(int), .value_size = sizeof(void *), .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Invalid member", }, /* typedef const void * const_void_ptr; * const_void_ptr[4] */ { .descr = "void test #3", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), /* const void* */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2), /* typedef const void * const_void_ptr */ BTF_TYPEDEF_ENC(NAME_TBD, 3), /* [4] */ /* const_void_ptr[4] */ BTF_TYPE_ARRAY_ENC(4, 1, 4), /* [5] */ BTF_END_RAW, }, .str_sec = "\0const_void_ptr", .str_sec_size = sizeof("\0const_void_ptr"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "void_test3_map", .key_size = sizeof(int), .value_size = sizeof(void *) * 4, .key_type_id = 1, .value_type_id = 5, .max_entries = 4, }, /* const void[4] */ { .descr = "void test #4", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), /* const void[4] */ /* [3] */ BTF_TYPE_ARRAY_ENC(2, 1, 4), BTF_END_RAW, }, .str_sec = "\0A\0m", .str_sec_size = sizeof("\0A\0m"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "void_test4_map", .key_size = sizeof(int), .value_size = sizeof(void *) * 4, .key_type_id = 1, .value_type_id = 3, .max_entries = 4, .btf_load_err = true, .err_str = "Invalid elem", }, /* Array_A <------------------+ * elem_type == Array_B | * | | * | | * Array_B <-------- + | * elem_type == Array A --+ */ { .descr = "loop test #1", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* Array_A */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 1, 8), /* Array_B */ /* [3] */ BTF_TYPE_ARRAY_ENC(2, 1, 8), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test1_map", .key_size = sizeof(int), .value_size = sizeof(sizeof(int) * 8), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, /* typedef is _before_ the BTF type of Array_A and Array_B * * typedef Array_B int_array; * * Array_A <------------------+ * elem_type == int_array | * | | * | | * Array_B <-------- + | * elem_type == Array_A --+ */ { .descr = "loop test #2", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* typedef Array_B int_array */ BTF_TYPEDEF_ENC(1, 4), /* [2] */ /* Array_A */ BTF_TYPE_ARRAY_ENC(2, 1, 8), /* [3] */ /* Array_B */ BTF_TYPE_ARRAY_ENC(3, 1, 8), /* [4] */ BTF_END_RAW, }, .str_sec = "\0int_array\0", .str_sec_size = sizeof("\0int_array"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test2_map", .key_size = sizeof(int), .value_size = sizeof(sizeof(int) * 8), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, /* Array_A <------------------+ * elem_type == Array_B | * | | * | | * Array_B <-------- + | * elem_type == Array_A --+ */ { .descr = "loop test #3", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* Array_A */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 1, 8), /* Array_B */ /* [3] */ BTF_TYPE_ARRAY_ENC(2, 1, 8), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test3_map", .key_size = sizeof(int), .value_size = sizeof(sizeof(int) * 8), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, /* typedef is _between_ the BTF type of Array_A and Array_B * * typedef Array_B int_array; * * Array_A <------------------+ * elem_type == int_array | * | | * | | * Array_B <-------- + | * elem_type == Array_A --+ */ { .descr = "loop test #4", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* Array_A */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 1, 8), /* typedef Array_B int_array */ /* [3] */ BTF_TYPEDEF_ENC(NAME_TBD, 4), /* Array_B */ /* [4] */ BTF_TYPE_ARRAY_ENC(2, 1, 8), BTF_END_RAW, }, .str_sec = "\0int_array\0", .str_sec_size = sizeof("\0int_array"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test4_map", .key_size = sizeof(int), .value_size = sizeof(sizeof(int) * 8), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, /* typedef struct B Struct_B * * struct A { * int x; * Struct_B y; * }; * * struct B { * int x; * struct A y; * }; */ { .descr = "loop test #5", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* struct A */ /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* Struct_B y; */ /* typedef struct B Struct_B */ BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ /* struct B */ /* [4] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A y; */ BTF_END_RAW, }, .str_sec = "\0A\0x\0y\0Struct_B\0B\0x\0y", .str_sec_size = sizeof("\0A\0x\0y\0Struct_B\0B\0x\0y"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test5_map", .key_size = sizeof(int), .value_size = 8, .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, /* struct A { * int x; * struct A array_a[4]; * }; */ { .descr = "loop test #6", .raw_types = { /* int */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ARRAY_ENC(3, 1, 4), /* [2] */ /* struct A */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8), BTF_MEMBER_ENC(NAME_TBD, 1, 0), /* int x; */ BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A array_a[4]; */ BTF_END_RAW, }, .str_sec = "\0A\0x\0y", .str_sec_size = sizeof("\0A\0x\0y"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test6_map", .key_size = sizeof(int), .value_size = 8, .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, { .descr = "loop test #7", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* struct A { */ /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), /* const void *m; */ BTF_MEMBER_ENC(NAME_TBD, 3, 0), /* CONST type_id=3 */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), /* PTR type_id=2 */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3), BTF_END_RAW, }, .str_sec = "\0A\0m", .str_sec_size = sizeof("\0A\0m"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test7_map", .key_size = sizeof(int), .value_size = sizeof(void *), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, { .descr = "loop test #8", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* struct A { */ /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), /* const void *m; */ BTF_MEMBER_ENC(NAME_TBD, 4, 0), /* struct B { */ /* [3] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)), /* const void *n; */ BTF_MEMBER_ENC(NAME_TBD, 6, 0), /* CONST type_id=5 */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 5), /* PTR type_id=6 */ /* [5] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 6), /* CONST type_id=7 */ /* [6] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 7), /* PTR type_id=4 */ /* [7] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 4), BTF_END_RAW, }, .str_sec = "\0A\0m\0B\0n", .str_sec_size = sizeof("\0A\0m\0B\0n"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "loop_test8_map", .key_size = sizeof(int), .value_size = sizeof(void *), .key_type_id = 1, .value_type_id = 2, .max_entries = 4, .btf_load_err = true, .err_str = "Loop detected", }, { .descr = "string section does not end with null", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int") - 1, .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .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 string section", }, { .descr = "empty string section", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = 0, .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .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 string section", }, { .descr = "empty type section", .raw_types = { BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .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 = "No type found", }, { .descr = "btf_header test. Longer hdr_len", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .hdr_len_delta = 4, .err_str = "Unsupported btf_header", }, { .descr = "btf_header test. Gap between hdr and type", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .type_off_delta = 4, .err_str = "Unsupported section found", }, { .descr = "btf_header test. Gap between type and str", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .str_off_delta = 4, .err_str = "Unsupported section found", }, { .descr = "btf_header test. Overlap between type and str", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .str_off_delta = -4, .err_str = "Section overlap found", }, { .descr = "btf_header test. Larger BTF size", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .str_len_delta = -4, .err_str = "Unsupported section found", }, { .descr = "btf_header test. Smaller BTF size", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "\0int", .str_sec_size = sizeof("\0int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "hdr_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .btf_load_err = true, .str_len_delta = 4, .err_str = "Total section length too long", }, { .descr = "array test. index_type/elem_type \"int\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(1, 1, 16), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, }, { .descr = "array test. index_type/elem_type \"const int\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 3, 16), /* CONST type_id=1 */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, }, { .descr = "array test. index_type \"const int:31\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int:31 */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), /* int[16] */ /* [3] */ BTF_TYPE_ARRAY_ENC(1, 4, 16), /* CONST type_id=2 */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 index", }, { .descr = "array test. elem_type \"const int:31\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int:31 */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4), /* int[16] */ /* [3] */ BTF_TYPE_ARRAY_ENC(4, 1, 16), /* CONST type_id=2 */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 array of int", }, { .descr = "array test. index_type \"void\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(1, 0, 16), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 index", }, { .descr = "array test. index_type \"const void\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(1, 3, 16), /* CONST type_id=0 (void) */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 index", }, { .descr = "array test. elem_type \"const void\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 1, 16), /* CONST type_id=0 (void) */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 elem", }, { .descr = "array test. elem_type \"const void *\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void *[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 1, 16), /* CONST type_id=4 */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), /* void* */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, }, { .descr = "array test. index_type \"const void *\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* const void *[16] */ /* [2] */ BTF_TYPE_ARRAY_ENC(3, 3, 16), /* CONST type_id=4 */ /* [3] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4), /* void* */ /* [4] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 index", }, { .descr = "array test. t->size != 0\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* int[16] */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 1), BTF_ARRAY_ENC(1, 1, 16), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 = "size != 0", }, { .descr = "int test. invalid int_data", .raw_types = { BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), 4), 0x10000000, BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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 int_data", }, { .descr = "invalid BTF_INFO", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_TYPE_ENC(0, 0x10000000, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_test_map", .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", }, { .descr = "fwd test. t->type != 0\"", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* fwd type */ /* [2] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "fwd_test_map", .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 = "type != 0", }, { .descr = "typedef (invalid name, name_off = 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(0, 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__int", .str_sec_size = sizeof("\0__int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "typedef_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 name", }, { .descr = "typedef (invalid name, invalid identifier)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPEDEF_ENC(NAME_TBD, 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__!int", .str_sec_size = sizeof("\0__!int"), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "typedef_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 name", }, { .descr = "ptr type (invalid name, name_off <> 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__int", .str_sec_size = sizeof("\0__int"), .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 name", }, { .descr = "volatile type (invalid name, name_off <> 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__int", .str_sec_size = sizeof("\0__int"), .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 name", }, { .descr = "const type (invalid name, name_off <> 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__int", .str_sec_size = sizeof("\0__int"), .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 name", }, { .descr = "restrict type (invalid name, name_off <> 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1), /* [2] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), 2), /* [3] */ BTF_END_RAW, }, .str_sec = "\0__int", .str_sec_size = sizeof("\0__int"), .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 name", }, { .descr = "fwd type (invalid name, name_off = 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__skb", .str_sec_size = sizeof("\0__skb"), .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, .btf_load_err = true, .err_str = "Invalid name", }, { .descr = "fwd type (invalid name, invalid identifier)", .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, 0, 0), 0), /* [2] */ BTF_END_RAW, }, .str_sec = "\0__!skb", .str_sec_size = sizeof("\0__!skb"), .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, .btf_load_err = true, .err_str = "Invalid name", }, { .descr = "array type (invalid name, name_off <> 0)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), /* [2] */ BTF_ARRAY_ENC(1, 1, 4), BTF_END_RAW, }, .str_sec = "\0__skb", .str_sec_size = sizeof("\0__skb"), .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 name", }, { .descr = "struct type (name_off = 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, 0, 1), 4), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_END_RAW, }, .str_sec = "\0A", .str_sec_size = sizeof("\0A"), .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 = "struct type (invalid name, invalid identifier)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_END_RAW, }, .str_sec = "\0A!\0B", .str_sec_size = sizeof("\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 name", }, { .descr = "struct member (name_off = 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, 0, 1), 4), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_END_RAW, }, .str_sec = "\0A", .str_sec_size = sizeof("\0A"), .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 = "struct member (invalid name, invalid identifier)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4), /* [2] */ BTF_MEMBER_ENC(NAME_TBD, 1, 0), BTF_END_RAW, }, .str_sec = "\0A\0B*", .str_sec_size = sizeof("\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 name", }, { .descr = "enum type (name_off = 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), sizeof(int)), /* [2] */ BTF_ENUM_ENC(NAME_TBD, 0), BTF_END_RAW, }, .str_sec = "\0A\0B", .str_sec_size = sizeof("\0A\0B"), .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, }, { .descr = "enum type (invalid name, invalid identifier)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), sizeof(int)), /* [2] */ BTF_ENUM_ENC(NAME_TBD, 0), BTF_END_RAW, }, .str_sec = "\0A!\0B", .str_sec_size = sizeof("\0A!\0B"), .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 name", }, { .descr = "enum member (invalid name, name_off = 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), sizeof(int)), /* [2] */ BTF_ENUM_ENC(0, 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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 name", }, { .descr = "enum member (invalid name, invalid identifier)", .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), sizeof(int)), /* [2] */ BTF_ENUM_ENC(NAME_TBD, 0), BTF_END_RAW, }, .str_sec = "\0A!", .str_sec_size = sizeof("\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 name", }, { .descr = "arraymap invalid btf key (a bit field)", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* 32 bit int with 32 bit offset */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 32, 32, 8), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_map_check_btf", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 2, .value_type_id = 1, .max_entries = 4, .map_create_err = true, }, { .descr = "arraymap invalid btf key (!= 32 bits)", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* 16 bit int with 0 bit offset */ /* [2] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 16, 2), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_map_check_btf", .key_size = sizeof(int), .value_size = sizeof(int), .key_type_id = 2, .value_type_id = 1, .max_entries = 4, .map_create_err = true, }, { .descr = "arraymap invalid btf value (too small)", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_map_check_btf", .key_size = sizeof(int), /* btf_value_size < map->value_size */ .value_size = sizeof(__u64), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .map_create_err = true, }, { .descr = "arraymap invalid btf value (too big)", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "array_map_check_btf", .key_size = sizeof(int), /* btf_value_size > map->value_size */ .value_size = sizeof(__u16), .key_type_id = 1, .value_type_id = 1, .max_entries = 4, .map_create_err = true, }, { .descr = "func proto (int (*)(int, unsigned int))", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* int (*)(int, unsigned int) */ BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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, }, { .descr = "func proto (vararg)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int, unsigned int, ...) */ BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_FUNC_PROTO_ARG_ENC(0, 0), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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, }, { .descr = "func proto (vararg with name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int b, ... c) */ BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 0), BTF_END_RAW, }, .str_sec = "\0a\0b\0c", .str_sec_size = sizeof("\0a\0b\0c"), .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 arg#3", }, { .descr = "func proto (arg after vararg)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, ..., unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 3), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(0, 0), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_END_RAW, }, .str_sec = "\0a\0b", .str_sec_size = sizeof("\0a\0b"), .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 arg#2", }, { .descr = "func proto (CONST=>TYPEDEF=>PTR=>FUNC_PROTO)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* typedef void (*func_ptr)(int, unsigned int) */ BTF_TYPEDEF_ENC(NAME_TBD, 5), /* [3] */ /* const func_ptr */ BTF_CONST_ENC(3), /* [4] */ BTF_PTR_ENC(6), /* [5] */ BTF_FUNC_PROTO_ENC(0, 2), /* [6] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_END_RAW, }, .str_sec = "\0func_ptr", .str_sec_size = sizeof("\0func_ptr"), .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, }, { .descr = "func proto (TYPEDEF=>FUNC_PROTO)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ BTF_TYPEDEF_ENC(NAME_TBD, 4), /* [3] */ BTF_FUNC_PROTO_ENC(0, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_END_RAW, }, .str_sec = "\0func_typedef", .str_sec_size = sizeof("\0func_typedef"), .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, }, { .descr = "func proto (btf_resolve(arg))", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ /* void (*)(const void *) */ BTF_FUNC_PROTO_ENC(0, 1), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(0, 3), BTF_CONST_ENC(4), /* [3] */ BTF_PTR_ENC(0), /* [4] */ BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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, }, { .descr = "func proto (Not all arg has name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int, unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_END_RAW, }, .str_sec = "\0b", .str_sec_size = sizeof("\0b"), .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, }, { .descr = "func proto (Bad arg name_off)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int <bad_name_off>) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(0xffffffff, 2), BTF_END_RAW, }, .str_sec = "\0a", .str_sec_size = sizeof("\0a"), .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 arg#2", }, { .descr = "func proto (Bad arg name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int !!!) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_END_RAW, }, .str_sec = "\0a\0!!!", .str_sec_size = sizeof("\0a\0!!!"), .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 arg#2", }, { .descr = "func proto (Invalid return type)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* <bad_ret_type> (*)(int, unsigned int) */ BTF_FUNC_PROTO_ENC(100, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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 return type", }, { .descr = "func proto (with func name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void func_proto(int, unsigned int) */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 2), 0), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), BTF_END_RAW, }, .str_sec = "\0func_proto", .str_sec_size = sizeof("\0func_proto"), .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 name", }, { .descr = "func proto (const void arg)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(const void) */ BTF_FUNC_PROTO_ENC(0, 1), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(0, 4), BTF_CONST_ENC(0), /* [4] */ BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .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 arg#1", }, { .descr = "func (void func(int a, unsigned int b))", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), /* void func(int a, unsigned int b) */ BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ BTF_END_RAW, }, .str_sec = "\0a\0b\0func", .str_sec_size = sizeof("\0a\0b\0func"), .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, }, { .descr = "func (No func name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), /* void <no_name>(int a, unsigned int b) */ BTF_FUNC_ENC(0, 3), /* [4] */ BTF_END_RAW, }, .str_sec = "\0a\0b", .str_sec_size = sizeof("\0a\0b"), .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 name", }, { .descr = "func (Invalid func name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), /* void !!!(int a, unsigned int b) */ BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ BTF_END_RAW, }, .str_sec = "\0a\0b\0!!!", .str_sec_size = sizeof("\0a\0b\0!!!"), .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 name", }, { .descr = "func (Some arg has no name)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(0, 2), /* void func(int a, unsigned int) */ BTF_FUNC_ENC(NAME_TBD, 3), /* [4] */ BTF_END_RAW, }, .str_sec = "\0a\0func", .str_sec_size = sizeof("\0a\0func"), .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 arg#2", }, { .descr = "func (Non zero vlen)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), /* [2] */ /* void (*)(int a, unsigned int b) */ BTF_FUNC_PROTO_ENC(0, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), /* void func(int a, unsigned int b) */ BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 2), 3), /* [4] */ BTF_END_RAW, }, .str_sec = "\0a\0b\0func", .str_sec_size = sizeof("\0a\0b\0func"), .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 = "vlen != 0", }, { .descr = "func (Not referring to FUNC_PROTO)", .raw_types = { BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_ENC(NAME_TBD, 1), /* [2] */ BTF_END_RAW, }, .str_sec = "\0func", .str_sec_size = sizeof("\0func"), .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 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) { return start < end - 1 ? start + 1 : NULL; } static int get_raw_sec_size(const __u32 *raw_types) { int i; for (i = MAX_NR_RAW_U32 - 1; i >= 0 && raw_types[i] != BTF_END_RAW; i--) ; return i < 0 ? i : i * sizeof(raw_types[0]); } static void *btf_raw_create(const struct btf_header *hdr, const __u32 *raw_types, const char *str, unsigned int str_sec_size, unsigned int *btf_size, const char **ret_next_str) { const char *next_str = str, *end_str = str + str_sec_size; unsigned int size_needed, offset; struct btf_header *ret_hdr; int i, type_sec_size; uint32_t *ret_types; void *raw_btf; type_sec_size = get_raw_sec_size(raw_types); if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types")) return NULL; size_needed = sizeof(*hdr) + type_sec_size + str_sec_size; raw_btf = malloc(size_needed); if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf")) return NULL; /* Copy header */ memcpy(raw_btf, hdr, sizeof(*hdr)); offset = sizeof(*hdr); /* Copy type section */ ret_types = raw_btf + offset; for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) { if (raw_types[i] == NAME_TBD) { next_str = get_next_str(next_str, end_str); if (CHECK(!next_str, "Error in getting next_str")) { free(raw_btf); return NULL; } ret_types[i] = next_str - str; next_str += strlen(next_str); } else { ret_types[i] = raw_types[i]; } } offset += type_sec_size; /* Copy string section */ memcpy(raw_btf + offset, str, str_sec_size); ret_hdr = (struct btf_header *)raw_btf; ret_hdr->type_len = type_sec_size; ret_hdr->str_off = type_sec_size; ret_hdr->str_len = str_sec_size; *btf_size = size_needed; if (ret_next_str) *ret_next_str = next_str; return raw_btf; } static int do_test_raw(unsigned int test_num) { struct btf_raw_test *test = &raw_tests[test_num - 1]; struct bpf_create_map_attr create_attr = {}; int map_fd = -1, btf_fd = -1; unsigned int raw_btf_size; struct btf_header *hdr; void *raw_btf; int err; fprintf(stderr, "BTF raw test[%u] (%s): ", test_num, test->descr); raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, NULL); if (!raw_btf) return -1; hdr = raw_btf; hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta; hdr->type_off = (int)hdr->type_off + test->type_off_delta; hdr->str_off = (int)hdr->str_off + test->str_off_delta; hdr->str_len = (int)hdr->str_len + test->str_len_delta; *btf_log_buf = '\0'; btf_fd = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); free(raw_btf); err = ((btf_fd == -1) != test->btf_load_err); if (CHECK(err, "btf_fd:%d test->btf_load_err:%u", btf_fd, test->btf_load_err) || CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), "expected err_str:%s", test->err_str)) { err = -1; goto done; } if (err || btf_fd == -1) goto done; create_attr.name = test->map_name; create_attr.map_type = test->map_type; create_attr.key_size = test->key_size; create_attr.value_size = test->value_size; create_attr.max_entries = test->max_entries; create_attr.btf_fd = btf_fd; create_attr.btf_key_type_id = test->key_type_id; create_attr.btf_value_type_id = test->value_type_id; map_fd = bpf_create_map_xattr(&create_attr); err = ((map_fd == -1) != test->map_create_err); CHECK(err, "map_fd:%d test->map_create_err:%u", map_fd, test->map_create_err); done: if (!err) fprintf(stderr, "OK"); if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); if (btf_fd != -1) close(btf_fd); if (map_fd != -1) close(map_fd); return err; } static int test_raw(void) { unsigned int i; int err = 0; if (args.raw_test_num) return count_result(do_test_raw(args.raw_test_num)); for (i = 1; i <= ARRAY_SIZE(raw_tests); i++) err |= count_result(do_test_raw(i)); return err; } struct btf_get_info_test { const char *descr; const char *str_sec; __u32 raw_types[MAX_NR_RAW_U32]; __u32 str_sec_size; int btf_size_delta; int (*special_test)(unsigned int test_num); }; static int test_big_btf_info(unsigned int test_num); static int test_btf_id(unsigned int test_num); const struct btf_get_info_test get_info_tests[] = { { .descr = "== raw_btf_size+1", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .btf_size_delta = 1, }, { .descr = "== raw_btf_size-3", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .btf_size_delta = -3, }, { .descr = "Large bpf_btf_info", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .special_test = test_big_btf_info, }, { .descr = "BTF ID", .raw_types = { /* int */ /* [1] */ BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* unsigned int */ /* [2] */ BTF_TYPE_INT_ENC(0, 0, 0, 32, 4), BTF_END_RAW, }, .str_sec = "", .str_sec_size = sizeof(""), .special_test = test_btf_id, }, }; static inline __u64 ptr_to_u64(const void *ptr) { return (__u64)(unsigned long)ptr; } static int test_big_btf_info(unsigned int test_num) { const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; uint8_t *raw_btf = NULL, *user_btf = NULL; unsigned int raw_btf_size; struct { struct bpf_btf_info info; uint64_t garbage; } info_garbage; struct bpf_btf_info *info; int btf_fd = -1, err; uint32_t info_len; raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, NULL); if (!raw_btf) return -1; *btf_log_buf = '\0'; user_btf = malloc(raw_btf_size); if (CHECK(!user_btf, "!user_btf")) { err = -1; goto done; } btf_fd = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); if (CHECK(btf_fd == -1, "errno:%d", errno)) { err = -1; goto done; } /* * GET_INFO should error out if the userspace info * has non zero tailing bytes. */ info = &info_garbage.info; memset(info, 0, sizeof(*info)); info_garbage.garbage = 0xdeadbeef; info_len = sizeof(info_garbage); info->btf = ptr_to_u64(user_btf); info->btf_size = raw_btf_size; err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); if (CHECK(!err, "!err")) { err = -1; goto done; } /* * GET_INFO should succeed even info_len is larger than * the kernel supported as long as tailing bytes are zero. * The kernel supported info len should also be returned * to userspace. */ info_garbage.garbage = 0; err = bpf_obj_get_info_by_fd(btf_fd, info, &info_len); if (CHECK(err || info_len != sizeof(*info), "err:%d errno:%d info_len:%u sizeof(*info):%lu", err, errno, info_len, sizeof(*info))) { err = -1; goto done; } fprintf(stderr, "OK"); done: if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); free(raw_btf); free(user_btf); if (btf_fd != -1) close(btf_fd); return err; } static int test_btf_id(unsigned int test_num) { const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; struct bpf_create_map_attr create_attr = {}; uint8_t *raw_btf = NULL, *user_btf[2] = {}; int btf_fd[2] = {-1, -1}, map_fd = -1; struct bpf_map_info map_info = {}; struct bpf_btf_info info[2] = {}; unsigned int raw_btf_size; uint32_t info_len; int err, i, ret; raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, NULL); if (!raw_btf) return -1; *btf_log_buf = '\0'; for (i = 0; i < 2; i++) { user_btf[i] = malloc(raw_btf_size); if (CHECK(!user_btf[i], "!user_btf[%d]", i)) { err = -1; goto done; } info[i].btf = ptr_to_u64(user_btf[i]); info[i].btf_size = raw_btf_size; } btf_fd[0] = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { err = -1; goto done; } /* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */ info_len = sizeof(info[0]); err = bpf_obj_get_info_by_fd(btf_fd[0], &info[0], &info_len); if (CHECK(err, "errno:%d", errno)) { err = -1; goto done; } btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id); if (CHECK(btf_fd[1] == -1, "errno:%d", errno)) { err = -1; goto done; } ret = 0; err = bpf_obj_get_info_by_fd(btf_fd[1], &info[1], &info_len); if (CHECK(err || info[0].id != info[1].id || info[0].btf_size != info[1].btf_size || (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)), "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d", err, errno, info[0].id, info[1].id, info[0].btf_size, info[1].btf_size, ret)) { err = -1; goto done; } /* Test btf members in struct bpf_map_info */ create_attr.name = "test_btf_id"; create_attr.map_type = BPF_MAP_TYPE_ARRAY; create_attr.key_size = sizeof(int); create_attr.value_size = sizeof(unsigned int); create_attr.max_entries = 4; create_attr.btf_fd = btf_fd[0]; create_attr.btf_key_type_id = 1; create_attr.btf_value_type_id = 2; map_fd = bpf_create_map_xattr(&create_attr); if (CHECK(map_fd == -1, "errno:%d", errno)) { err = -1; goto done; } info_len = sizeof(map_info); err = bpf_obj_get_info_by_fd(map_fd, &map_info, &info_len); if (CHECK(err || map_info.btf_id != info[0].id || map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2, "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u", err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id, map_info.btf_value_type_id)) { err = -1; goto done; } for (i = 0; i < 2; i++) { close(btf_fd[i]); btf_fd[i] = -1; } /* Test BTF ID is removed from the kernel */ btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); if (CHECK(btf_fd[0] == -1, "errno:%d", errno)) { err = -1; goto done; } close(btf_fd[0]); btf_fd[0] = -1; /* The map holds the last ref to BTF and its btf_id */ close(map_fd); map_fd = -1; btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id); if (CHECK(btf_fd[0] != -1, "BTF lingers")) { err = -1; goto done; } fprintf(stderr, "OK"); done: if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); free(raw_btf); if (map_fd != -1) close(map_fd); for (i = 0; i < 2; i++) { free(user_btf[i]); if (btf_fd[i] != -1) close(btf_fd[i]); } return err; } static int do_test_get_info(unsigned int test_num) { const struct btf_get_info_test *test = &get_info_tests[test_num - 1]; unsigned int raw_btf_size, user_btf_size, expected_nbytes; uint8_t *raw_btf = NULL, *user_btf = NULL; struct bpf_btf_info info = {}; int btf_fd = -1, err, ret; uint32_t info_len; fprintf(stderr, "BTF GET_INFO test[%u] (%s): ", test_num, test->descr); if (test->special_test) return test->special_test(test_num); raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, NULL); if (!raw_btf) return -1; *btf_log_buf = '\0'; user_btf = malloc(raw_btf_size); if (CHECK(!user_btf, "!user_btf")) { err = -1; goto done; } btf_fd = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); if (CHECK(btf_fd == -1, "errno:%d", errno)) { err = -1; goto done; } user_btf_size = (int)raw_btf_size + test->btf_size_delta; expected_nbytes = min(raw_btf_size, user_btf_size); if (raw_btf_size > expected_nbytes) memset(user_btf + expected_nbytes, 0xff, raw_btf_size - expected_nbytes); info_len = sizeof(info); info.btf = ptr_to_u64(user_btf); info.btf_size = user_btf_size; ret = 0; err = bpf_obj_get_info_by_fd(btf_fd, &info, &info_len); if (CHECK(err || !info.id || info_len != sizeof(info) || info.btf_size != raw_btf_size || (ret = memcmp(raw_btf, user_btf, expected_nbytes)), "err:%d errno:%d info.id:%u info_len:%u sizeof(info):%lu raw_btf_size:%u info.btf_size:%u expected_nbytes:%u memcmp:%d", err, errno, info.id, info_len, sizeof(info), raw_btf_size, info.btf_size, expected_nbytes, ret)) { err = -1; goto done; } while (expected_nbytes < raw_btf_size) { fprintf(stderr, "%u...", expected_nbytes); if (CHECK(user_btf[expected_nbytes++] != 0xff, "user_btf[%u]:%x != 0xff", expected_nbytes - 1, user_btf[expected_nbytes - 1])) { err = -1; goto done; } } fprintf(stderr, "OK"); done: if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); free(raw_btf); free(user_btf); if (btf_fd != -1) close(btf_fd); return err; } static int test_get_info(void) { unsigned int i; int err = 0; if (args.get_info_test_num) return count_result(do_test_get_info(args.get_info_test_num)); for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++) err |= count_result(do_test_get_info(i)); return err; } struct btf_file_test { const char *file; bool btf_kv_notfound; }; static struct btf_file_test file_tests[] = { { .file = "test_btf_haskv.o", }, { .file = "test_btf_nokv.o", .btf_kv_notfound = true, }, }; static int file_has_btf_elf(const char *fn, bool *has_btf_ext) { Elf_Scn *scn = NULL; GElf_Ehdr ehdr; int ret = 0; int elf_fd; Elf *elf; if (CHECK(elf_version(EV_CURRENT) == EV_NONE, "elf_version(EV_CURRENT) == EV_NONE")) return -1; elf_fd = open(fn, O_RDONLY); if (CHECK(elf_fd == -1, "open(%s): errno:%d", fn, errno)) return -1; elf = elf_begin(elf_fd, ELF_C_READ, NULL); if (CHECK(!elf, "elf_begin(%s): %s", fn, elf_errmsg(elf_errno()))) { ret = -1; goto done; } if (CHECK(!gelf_getehdr(elf, &ehdr), "!gelf_getehdr(%s)", fn)) { ret = -1; goto done; } while ((scn = elf_nextscn(elf, scn))) { const char *sh_name; GElf_Shdr sh; if (CHECK(gelf_getshdr(scn, &sh) != &sh, "file:%s gelf_getshdr != &sh", fn)) { ret = -1; goto done; } sh_name = elf_strptr(elf, ehdr.e_shstrndx, sh.sh_name); if (!strcmp(sh_name, BTF_ELF_SEC)) ret = 1; if (!strcmp(sh_name, BTF_EXT_ELF_SEC)) *has_btf_ext = true; } done: close(elf_fd); elf_end(elf); return ret; } static int do_test_file(unsigned int test_num) { const struct btf_file_test *test = &file_tests[test_num - 1]; const char *expected_fnames[] = {"_dummy_tracepoint", "test_long_fname_1", "test_long_fname_2"}; struct bpf_prog_info info = {}; struct bpf_object *obj = NULL; struct bpf_func_info *finfo; struct bpf_program *prog; __u32 info_len, rec_size; bool has_btf_ext = false; struct btf *btf = NULL; void *func_info = NULL; struct bpf_map *map; int i, err, prog_fd; fprintf(stderr, "BTF libbpf test[%u] (%s): ", test_num, test->file); err = file_has_btf_elf(test->file, &has_btf_ext); if (err == -1) return err; if (err == 0) { fprintf(stderr, "SKIP. No ELF %s found", BTF_ELF_SEC); skip_cnt++; return 0; } obj = bpf_object__open(test->file); if (CHECK(IS_ERR(obj), "obj: %ld", PTR_ERR(obj))) return PTR_ERR(obj); err = bpf_object__btf_fd(obj); if (CHECK(err == -1, "bpf_object__btf_fd: -1")) goto done; prog = bpf_program__next(NULL, obj); if (CHECK(!prog, "Cannot find bpf_prog")) { err = -1; goto done; } bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT); err = bpf_object__load(obj); if (CHECK(err < 0, "bpf_object__load: %d", err)) goto done; prog_fd = bpf_program__fd(prog); map = bpf_object__find_map_by_name(obj, "btf_map"); if (CHECK(!map, "btf_map not found")) { err = -1; goto done; } err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0) != test->btf_kv_notfound; if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u", bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map), test->btf_kv_notfound)) goto done; if (!has_btf_ext) goto skip; /* get necessary program info */ info_len = sizeof(struct bpf_prog_info); err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { fprintf(stderr, "%s\n", btf_log_buf); err = -1; goto done; } if (CHECK(info.nr_func_info != 3, "incorrect info.nr_func_info (1st) %d", info.nr_func_info)) { err = -1; goto done; } rec_size = info.func_info_rec_size; if (CHECK(rec_size != sizeof(struct bpf_func_info), "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) { err = -1; goto done; } func_info = malloc(info.nr_func_info * rec_size); if (CHECK(!func_info, "out of memory")) { err = -1; goto done; } /* reset info to only retrieve func_info related data */ memset(&info, 0, sizeof(info)); info.nr_func_info = 3; info.func_info_rec_size = rec_size; info.func_info = ptr_to_u64(func_info); err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { fprintf(stderr, "%s\n", btf_log_buf); err = -1; goto done; } if (CHECK(info.nr_func_info != 3, "incorrect info.nr_func_info (2nd) %d", info.nr_func_info)) { err = -1; goto done; } if (CHECK(info.func_info_rec_size != rec_size, "incorrect info.func_info_rec_size (2nd) %d", info.func_info_rec_size)) { err = -1; goto done; } err = btf__get_from_id(info.btf_id, &btf); if (CHECK(err, "cannot get btf from kernel, err: %d", err)) goto done; /* check three functions */ finfo = func_info; for (i = 0; i < 3; i++) { const struct btf_type *t; const char *fname; t = btf__type_by_id(btf, finfo->type_id); if (CHECK(!t, "btf__type_by_id failure: id %u", finfo->type_id)) { err = -1; goto done; } fname = btf__name_by_offset(btf, t->name_off); err = strcmp(fname, expected_fnames[i]); /* for the second and third functions in .text section, * the compiler may order them either way. */ if (i && err) err = strcmp(fname, expected_fnames[3 - i]); if (CHECK(err, "incorrect fname %s", fname ? : "")) { err = -1; goto done; } finfo = (void *)finfo + rec_size; } skip: fprintf(stderr, "OK"); done: free(func_info); bpf_object__close(obj); return err; } static int test_file(void) { unsigned int i; int err = 0; if (args.file_test_num) return count_result(do_test_file(args.file_test_num)); for (i = 1; i <= ARRAY_SIZE(file_tests); i++) err |= count_result(do_test_file(i)); return err; } const char *pprint_enum_str[] = { "ENUM_ZERO", "ENUM_ONE", "ENUM_TWO", "ENUM_THREE", }; struct pprint_mapv { uint32_t ui32; uint16_t ui16; /* 2 bytes hole */ int32_t si32; uint32_t unused_bits2a:2, bits28:28, unused_bits2b:2; union { uint64_t ui64; uint8_t ui8a[8]; }; enum { ENUM_ZERO, ENUM_ONE, ENUM_TWO, ENUM_THREE, } aenum; uint32_t ui32b; uint32_t bits2c:2; }; static struct btf_raw_test pprint_test_template[] = { { .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), /* 2 bits */ /* [6] */ BTF_TYPE_INT_ENC(0, 0, 0, 2, 2), /* 28 bits */ /* [7] */ BTF_TYPE_INT_ENC(0, 0, 0, 28, 4), /* 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, 0, 10), 40), BTF_MEMBER_ENC(NAME_TBD, 11, 0), /* uint32_t ui32 */ BTF_MEMBER_ENC(NAME_TBD, 10, 32), /* uint16_t ui16 */ BTF_MEMBER_ENC(NAME_TBD, 12, 64), /* int32_t si32 */ BTF_MEMBER_ENC(NAME_TBD, 6, 96), /* unused_bits2a */ BTF_MEMBER_ENC(NAME_TBD, 7, 98), /* bits28 */ BTF_MEMBER_ENC(NAME_TBD, 6, 126), /* unused_bits2b */ BTF_MEMBER_ENC(0, 14, 128), /* union (anon) */ BTF_MEMBER_ENC(NAME_TBD, 15, 192), /* aenum */ BTF_MEMBER_ENC(NAME_TBD, 11, 224), /* uint32_t ui32b */ BTF_MEMBER_ENC(NAME_TBD, 6, 256), /* bits2c */ 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\0ui32b\0bits2c"), .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, 10), 40), 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_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ 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\0ui32b\0bits2c"), .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, 10), 40), 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 */ BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)), /* uint32_t ui32b */ BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)), /* bits2c */ /* 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\0ui32b\0bits2c\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 { const char *descr; enum bpf_map_type map_type; const char *map_name; bool ordered_map; bool lossless_map; bool percpu_map; } pprint_tests_meta[] = { { .descr = "BTF pretty print array", .map_type = BPF_MAP_TYPE_ARRAY, .map_name = "pprint_test_array", .ordered_map = true, .lossless_map = true, .percpu_map = false, }, { .descr = "BTF pretty print hash", .map_type = BPF_MAP_TYPE_HASH, .map_name = "pprint_test_hash", .ordered_map = false, .lossless_map = true, .percpu_map = false, }, { .descr = "BTF pretty print lru hash", .map_type = BPF_MAP_TYPE_LRU_HASH, .map_name = "pprint_test_lru_hash", .ordered_map = false, .lossless_map = false, .percpu_map = false, }, { .descr = "BTF pretty print percpu array", .map_type = BPF_MAP_TYPE_PERCPU_ARRAY, .map_name = "pprint_test_percpu_array", .ordered_map = true, .lossless_map = true, .percpu_map = true, }, { .descr = "BTF pretty print percpu hash", .map_type = BPF_MAP_TYPE_PERCPU_HASH, .map_name = "pprint_test_percpu_hash", .ordered_map = false, .lossless_map = true, .percpu_map = true, }, { .descr = "BTF pretty print lru percpu hash", .map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH, .map_name = "pprint_test_lru_percpu_hash", .ordered_map = false, .lossless_map = false, .percpu_map = true, }, }; static void set_pprint_mapv(struct pprint_mapv *v, uint32_t i, int num_cpus, int rounded_value_size) { int cpu; for (cpu = 0; cpu < num_cpus; cpu++) { v->ui32 = i + cpu; v->si32 = -i; v->unused_bits2a = 3; v->bits28 = i; v->unused_bits2b = 3; v->ui64 = i; v->aenum = i & 0x03; v->ui32b = 4; v->bits2c = 1; v = (void *)v + rounded_value_size; } } static int check_line(const char *expected_line, int nexpected_line, int expected_line_len, const char *line) { if (CHECK(nexpected_line == expected_line_len, "expected_line is too long")) return -1; if (strcmp(expected_line, line)) { fprintf(stderr, "unexpected pprint output\n"); fprintf(stderr, "expected: %s", expected_line); fprintf(stderr, " read: %s", line); return -1; } return 0; } static int do_test_pprint(int test_num) { 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; struct pprint_mapv *mapv = NULL; unsigned int key, nr_read_elems; int map_fd = -1, btf_fd = -1; unsigned int raw_btf_size; char expected_line[255]; FILE *pin_file = NULL; char pin_path[255]; size_t line_len = 0; char *line = NULL; uint8_t *raw_btf; ssize_t nread; 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); if (!raw_btf) return -1; *btf_log_buf = '\0'; btf_fd = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); free(raw_btf); if (CHECK(btf_fd == -1, "errno:%d", errno)) { err = -1; goto done; } create_attr.name = test->map_name; create_attr.map_type = test->map_type; create_attr.key_size = test->key_size; create_attr.value_size = test->value_size; create_attr.max_entries = test->max_entries; create_attr.btf_fd = btf_fd; create_attr.btf_key_type_id = test->key_type_id; create_attr.btf_value_type_id = test->value_type_id; map_fd = bpf_create_map_xattr(&create_attr); if (CHECK(map_fd == -1, "errno:%d", errno)) { err = -1; goto done; } ret = snprintf(pin_path, sizeof(pin_path), "%s/%s", "/sys/fs/bpf", test->map_name); if (CHECK(ret == sizeof(pin_path), "pin_path %s/%s is too long", "/sys/fs/bpf", test->map_name)) { err = -1; goto done; } err = bpf_obj_pin(map_fd, pin_path); if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno)) goto done; percpu_map = test->percpu_map; num_cpus = percpu_map ? bpf_num_possible_cpus() : 1; rounded_value_size = round_up(sizeof(struct pprint_mapv), 8); mapv = calloc(num_cpus, rounded_value_size); if (CHECK(!mapv, "mapv allocation failure")) { err = -1; goto done; } for (key = 0; key < test->max_entries; key++) { set_pprint_mapv(mapv, key, num_cpus, rounded_value_size); bpf_map_update_elem(map_fd, &key, mapv, 0); } pin_file = fopen(pin_path, "r"); if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) { err = -1; goto done; } /* Skip lines start with '#' */ while ((nread = getline(&line, &line_len, pin_file)) > 0 && *line == '#') ; if (CHECK(nread <= 0, "Unexpected EOF")) { err = -1; goto done; } nr_read_elems = 0; ordered_map = test->ordered_map; lossless_map = test->lossless_map; do { struct pprint_mapv *cmapv; ssize_t nexpected_line; unsigned int next_key; int cpu; next_key = ordered_map ? nr_read_elems : atoi(line); set_pprint_mapv(mapv, next_key, num_cpus, rounded_value_size); cmapv = mapv; for (cpu = 0; cpu < num_cpus; cpu++) { if (percpu_map) { /* for percpu map, the format looks like: * <key>: { * cpu0: <value_on_cpu0> * cpu1: <value_on_cpu1> * ... * cpun: <value_on_cpun> * } * * let us verify the line containing the key here. */ if (cpu == 0) { nexpected_line = snprintf(expected_line, sizeof(expected_line), "%u: {\n", next_key); err = check_line(expected_line, nexpected_line, sizeof(expected_line), line); if (err == -1) goto done; } /* read value@cpu */ nread = getline(&line, &line_len, pin_file); if (nread < 0) break; } nexpected_line = snprintf(expected_line, sizeof(expected_line), "%s%u: {%u,0,%d,0x%x,0x%x,0x%x," "{%lu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s," "%u,0x%x}\n", percpu_map ? "\tcpu" : "", percpu_map ? cpu : next_key, cmapv->ui32, cmapv->si32, cmapv->unused_bits2a, cmapv->bits28, cmapv->unused_bits2b, cmapv->ui64, cmapv->ui8a[0], cmapv->ui8a[1], cmapv->ui8a[2], cmapv->ui8a[3], cmapv->ui8a[4], cmapv->ui8a[5], cmapv->ui8a[6], cmapv->ui8a[7], pprint_enum_str[cmapv->aenum], cmapv->ui32b, cmapv->bits2c); err = check_line(expected_line, nexpected_line, sizeof(expected_line), line); if (err == -1) goto done; cmapv = (void *)cmapv + rounded_value_size; } if (percpu_map) { /* skip the last bracket for the percpu map */ nread = getline(&line, &line_len, pin_file); if (nread < 0) break; } nread = getline(&line, &line_len, pin_file); } while (++nr_read_elems < test->max_entries && nread > 0); if (lossless_map && CHECK(nr_read_elems < test->max_entries, "Unexpected EOF. nr_read_elems:%u test->max_entries:%u", nr_read_elems, test->max_entries)) { err = -1; goto done; } if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) { err = -1; goto done; } err = 0; done: if (mapv) free(mapv); if (!err) fprintf(stderr, "OK"); if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); if (btf_fd != -1) close(btf_fd); if (map_fd != -1) close(map_fd); if (pin_file) fclose(pin_file); unlink(pin_path); free(line); return err; } 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[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; } #define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \ (insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff)) static struct prog_info_raw_test { const char *descr; const char *str_sec; const char *err_str; __u32 raw_types[MAX_NR_RAW_U32]; __u32 str_sec_size; struct bpf_insn insns[MAX_INSNS]; __u32 prog_type; __u32 func_info[MAX_SUBPROGS][2]; __u32 func_info_rec_size; __u32 func_info_cnt; __u32 line_info[MAX_NR_RAW_U32]; __u32 line_info_rec_size; __u32 nr_jited_ksyms; bool expected_prog_load_failure; } info_raw_tests[] = { { .descr = "func_type (main func + one sub)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ BTF_END_RAW, }, .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 2), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info = { {0, 5}, {3, 6} }, .func_info_rec_size = 8, .func_info_cnt = 2, .line_info = { BTF_END_RAW }, }, { .descr = "func_type (Incorrect func_info_rec_size)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ BTF_END_RAW, }, .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 2), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info = { {0, 5}, {3, 6} }, .func_info_rec_size = 4, .func_info_cnt = 2, .line_info = { BTF_END_RAW }, .expected_prog_load_failure = true, }, { .descr = "func_type (Incorrect func_info_cnt)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ BTF_END_RAW, }, .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 2), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info = { {0, 5}, {3, 6} }, .func_info_rec_size = 8, .func_info_cnt = 1, .line_info = { BTF_END_RAW }, .expected_prog_load_failure = true, }, { .descr = "func_type (Incorrect bpf_func_info.insn_off)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4), /* [2] */ BTF_FUNC_PROTO_ENC(1, 2), /* [3] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ENC(1, 2), /* [4] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2), BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 3), /* [5] */ BTF_FUNC_ENC(NAME_TBD, 4), /* [6] */ BTF_END_RAW, }, .str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB", .str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"), .insns = { BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2), BPF_MOV64_IMM(BPF_REG_0, 1), BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 2), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info = { {0, 5}, {2, 6} }, .func_info_rec_size = 8, .func_info_cnt = 2, .line_info = { BTF_END_RAW }, .expected_prog_load_failure = true, }, { .descr = "line_info (No subprog)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_MOV64_IMM(BPF_REG_1, 2), BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 1, }, { .descr = "line_info (No subprog. insn_off >= prog->len)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_MOV64_IMM(BPF_REG_1, 2), BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), BPF_LINE_INFO_ENC(4, 0, 0, 5, 6), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 1, .err_str = "line_info[4].insn_off", .expected_prog_load_failure = true, }, { .descr = "line_info (Zero bpf insn code)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8), /* [2] */ BTF_TYPEDEF_ENC(NAME_TBD, 2), /* [3] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"), .insns = { BPF_LD_IMM64(BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(1, 0, 0, 2, 9), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 1, .err_str = "Invalid insn code at line_info[1]", .expected_prog_load_failure = true, }, { .descr = "line_info (No subprog. zero tailing line_info", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_MOV64_IMM(BPF_REG_1, 2), BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0, BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), .nr_jited_ksyms = 1, }, { .descr = "line_info (No subprog. nonzero tailing line_info)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"), .insns = { BPF_MOV64_IMM(BPF_REG_0, 1), BPF_MOV64_IMM(BPF_REG_1, 2), BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0, BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0, BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0, BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1, BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32), .nr_jited_ksyms = 1, .err_str = "nonzero tailing record in line_info", .expected_prog_load_failure = true, }, { .descr = "line_info (subprog)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), .insns = { BPF_MOV64_IMM(BPF_REG_2, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_CALL_REL(1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 2, }, { .descr = "line_info (subprog + func_info)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_FUNC_PROTO_ENC(1, 1), /* [2] */ BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1), BTF_FUNC_ENC(NAME_TBD, 2), /* [3] */ BTF_FUNC_ENC(NAME_TBD, 2), /* [4] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), .insns = { BPF_MOV64_IMM(BPF_REG_2, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_CALL_REL(1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 2, .func_info_rec_size = 8, .func_info = { {0, 4}, {5, 3} }, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 2, }, { .descr = "line_info (subprog. missing 1st func line info)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), .insns = { BPF_MOV64_IMM(BPF_REG_2, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_CALL_REL(1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 2, .err_str = "missing bpf_line_info for func#0", .expected_prog_load_failure = true, }, { .descr = "line_info (subprog. missing 2nd func line info)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), .insns = { BPF_MOV64_IMM(BPF_REG_2, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_CALL_REL(1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 2, .err_str = "missing bpf_line_info for func#1", .expected_prog_load_failure = true, }, { .descr = "line_info (subprog. unordered insn offset)", .raw_types = { BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4), /* [1] */ BTF_END_RAW, }, BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"), .insns = { BPF_MOV64_IMM(BPF_REG_2, 1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_CALL_REL(1), BPF_EXIT_INSN(), BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), BPF_EXIT_INSN(), }, .prog_type = BPF_PROG_TYPE_TRACEPOINT, .func_info_cnt = 0, .line_info = { BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9), BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7), BTF_END_RAW, }, .line_info_rec_size = sizeof(struct bpf_line_info), .nr_jited_ksyms = 2, .err_str = "Invalid line_info[2].insn_off", .expected_prog_load_failure = true, }, }; static size_t probe_prog_length(const struct bpf_insn *fp) { size_t len; for (len = MAX_INSNS - 1; len > 0; --len) if (fp[len].code != 0 || fp[len].imm != 0) break; return len + 1; } static __u32 *patch_name_tbd(const __u32 *raw_u32, const char *str, __u32 str_off, unsigned int str_sec_size, unsigned int *ret_size) { int i, raw_u32_size = get_raw_sec_size(raw_u32); const char *end_str = str + str_sec_size; const char *next_str = str + str_off; __u32 *new_u32 = NULL; if (raw_u32_size == -1) return ERR_PTR(-EINVAL); if (!raw_u32_size) { *ret_size = 0; return NULL; } new_u32 = malloc(raw_u32_size); if (!new_u32) return ERR_PTR(-ENOMEM); for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) { if (raw_u32[i] == NAME_TBD) { next_str = get_next_str(next_str, end_str); if (CHECK(!next_str, "Error in getting next_str\n")) { free(new_u32); return ERR_PTR(-EINVAL); } new_u32[i] = next_str - str; next_str += strlen(next_str); } else { new_u32[i] = raw_u32[i]; } } *ret_size = raw_u32_size; return new_u32; } static int test_get_finfo(const struct prog_info_raw_test *test, int prog_fd) { struct bpf_prog_info info = {}; struct bpf_func_info *finfo; __u32 info_len, rec_size, i; void *func_info = NULL; int err; /* get necessary lens */ info_len = sizeof(struct bpf_prog_info); err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err == -1, "invalid get info (1st) errno:%d", errno)) { fprintf(stderr, "%s\n", btf_log_buf); return -1; } if (CHECK(info.nr_func_info != test->func_info_cnt, "incorrect info.nr_func_info (1st) %d", info.nr_func_info)) { return -1; } rec_size = info.func_info_rec_size; if (CHECK(rec_size != sizeof(struct bpf_func_info), "incorrect info.func_info_rec_size (1st) %d", rec_size)) { return -1; } if (!info.nr_func_info) return 0; func_info = malloc(info.nr_func_info * rec_size); if (CHECK(!func_info, "out of memory")) return -1; /* reset info to only retrieve func_info related data */ memset(&info, 0, sizeof(info)); info.nr_func_info = test->func_info_cnt; info.func_info_rec_size = rec_size; info.func_info = ptr_to_u64(func_info); err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err == -1, "invalid get info (2nd) errno:%d", errno)) { fprintf(stderr, "%s\n", btf_log_buf); err = -1; goto done; } if (CHECK(info.nr_func_info != test->func_info_cnt, "incorrect info.nr_func_info (2nd) %d", info.nr_func_info)) { err = -1; goto done; } if (CHECK(info.func_info_rec_size != rec_size, "incorrect info.func_info_rec_size (2nd) %d", info.func_info_rec_size)) { err = -1; goto done; } finfo = func_info; for (i = 0; i < test->func_info_cnt; i++) { if (CHECK(finfo->type_id != test->func_info[i][1], "incorrect func_type %u expected %u", finfo->type_id, test->func_info[i][1])) { err = -1; goto done; } finfo = (void *)finfo + rec_size; } err = 0; done: free(func_info); return err; } static int test_get_linfo(const struct prog_info_raw_test *test, const void *patched_linfo, __u32 cnt, int prog_fd) { __u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens; __u64 *jited_linfo = NULL, *jited_ksyms = NULL; __u32 rec_size, jited_rec_size, jited_cnt; struct bpf_line_info *linfo = NULL; __u32 cur_func_len, ksyms_found; struct bpf_prog_info info = {}; __u32 *jited_func_lens = NULL; __u64 cur_func_ksyms; int err; jited_cnt = cnt; rec_size = sizeof(*linfo); jited_rec_size = sizeof(*jited_linfo); if (test->nr_jited_ksyms) nr_jited_ksyms = test->nr_jited_ksyms; else nr_jited_ksyms = test->func_info_cnt; nr_jited_func_lens = nr_jited_ksyms; info_len = sizeof(struct bpf_prog_info); err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); if (CHECK(err == -1, "err:%d errno:%d", err, errno)) { err = -1; goto done; } if (!info.jited_prog_len) { /* prog is not jited */ jited_cnt = 0; nr_jited_ksyms = 1; nr_jited_func_lens = 1; } if (CHECK(info.nr_line_info != cnt || info.nr_jited_line_info != jited_cnt || info.nr_jited_ksyms != nr_jited_ksyms || info.nr_jited_func_lens != nr_jited_func_lens || (!info.nr_line_info && info.nr_jited_line_info), "info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) nr_jited_ksyms:%u(expected:%u) nr_jited_func_lens:%u(expected:%u)", info.nr_line_info, cnt, info.nr_jited_line_info, jited_cnt, info.nr_jited_ksyms, nr_jited_ksyms, info.nr_jited_func_lens, nr_jited_func_lens)) { err = -1; goto done; } if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) || info.jited_line_info_rec_size != sizeof(__u64), "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)", info.line_info_rec_size, rec_size, info.jited_line_info_rec_size, jited_rec_size)) { err = -1; goto done; } if (!cnt) return 0; rec_size = info.line_info_rec_size; jited_rec_size = info.jited_line_info_rec_size; memset(&info, 0, sizeof(info)); linfo = calloc(cnt, rec_size); if (CHECK(!linfo, "!linfo")) { err = -1; goto done; } info.nr_line_info = cnt; info.line_info_rec_size = rec_size; info.line_info = ptr_to_u64(linfo); if (jited_cnt) { jited_linfo = calloc(jited_cnt, jited_rec_size); jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms)); jited_func_lens = calloc(nr_jited_func_lens, sizeof(*jited_func_lens)); if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens, "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p", jited_linfo, jited_ksyms, jited_func_lens)) { err = -1; goto done; } info.nr_jited_line_info = jited_cnt; info.jited_line_info_rec_size = jited_rec_size; info.jited_line_info = ptr_to_u64(jited_linfo); info.nr_jited_ksyms = nr_jited_ksyms; info.jited_ksyms = ptr_to_u64(jited_ksyms); info.nr_jited_func_lens = nr_jited_func_lens; info.jited_func_lens = ptr_to_u64(jited_func_lens); } err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); /* * Only recheck the info.*line_info* fields. * Other fields are not the concern of this test. */ if (CHECK(err == -1 || info.nr_line_info != cnt || (jited_cnt && !info.jited_line_info) || info.nr_jited_line_info != jited_cnt || info.line_info_rec_size != rec_size || info.jited_line_info_rec_size != jited_rec_size, "err:%d errno:%d info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) line_info_rec_size:%u(expected:%u) jited_linfo_rec_size:%u(expected:%u) line_info:%p jited_line_info:%p", err, errno, info.nr_line_info, cnt, info.nr_jited_line_info, jited_cnt, info.line_info_rec_size, rec_size, info.jited_line_info_rec_size, jited_rec_size, (void *)(long)info.line_info, (void *)(long)info.jited_line_info)) { err = -1; goto done; } CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u", linfo[0].insn_off); for (i = 1; i < cnt; i++) { const struct bpf_line_info *expected_linfo; expected_linfo = patched_linfo + (i * test->line_info_rec_size); if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off, "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u", i, linfo[i].insn_off, i - 1, linfo[i - 1].insn_off)) { err = -1; goto done; } if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off || linfo[i].line_off != expected_linfo->line_off || linfo[i].line_col != expected_linfo->line_col, "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i, linfo[i].file_name_off, linfo[i].line_off, linfo[i].line_col, expected_linfo->file_name_off, expected_linfo->line_off, expected_linfo->line_col)) { err = -1; goto done; } } if (!jited_cnt) { fprintf(stderr, "not jited. skipping jited_line_info check. "); err = 0; goto done; } if (CHECK(jited_linfo[0] != jited_ksyms[0], "jited_linfo[0]:%lx != jited_ksyms[0]:%lx", (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) { err = -1; goto done; } ksyms_found = 1; cur_func_len = jited_func_lens[0]; cur_func_ksyms = jited_ksyms[0]; for (i = 1; i < jited_cnt; i++) { if (ksyms_found < nr_jited_ksyms && jited_linfo[i] == jited_ksyms[ksyms_found]) { cur_func_ksyms = jited_ksyms[ksyms_found]; cur_func_len = jited_ksyms[ksyms_found]; ksyms_found++; continue; } if (CHECK(jited_linfo[i] <= jited_linfo[i - 1], "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx", i, (long)jited_linfo[i], i - 1, (long)(jited_linfo[i - 1]))) { err = -1; goto done; } if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len, "jited_linfo[%u]:%lx - %lx > %u", i, (long)jited_linfo[i], (long)cur_func_ksyms, cur_func_len)) { err = -1; goto done; } } if (CHECK(ksyms_found != nr_jited_ksyms, "ksyms_found:%u != nr_jited_ksyms:%u", ksyms_found, nr_jited_ksyms)) { err = -1; goto done; } err = 0; done: free(linfo); free(jited_linfo); free(jited_ksyms); free(jited_func_lens); return err; } static int do_test_info_raw(unsigned int test_num) { const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1]; unsigned int raw_btf_size, linfo_str_off, linfo_size; int btf_fd = -1, prog_fd = -1, err = 0; void *raw_btf, *patched_linfo = NULL; const char *ret_next_str; union bpf_attr attr = {}; fprintf(stderr, "BTF prog info raw test[%u] (%s): ", test_num, test->descr); raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types, test->str_sec, test->str_sec_size, &raw_btf_size, &ret_next_str); if (!raw_btf) return -1; *btf_log_buf = '\0'; btf_fd = bpf_load_btf(raw_btf, raw_btf_size, btf_log_buf, BTF_LOG_BUF_SIZE, args.always_log); free(raw_btf); if (CHECK(btf_fd == -1, "invalid btf_fd errno:%d", errno)) { err = -1; goto done; } if (*btf_log_buf && args.always_log) fprintf(stderr, "\n%s", btf_log_buf); *btf_log_buf = '\0'; linfo_str_off = ret_next_str - test->str_sec; patched_linfo = patch_name_tbd(test->line_info, test->str_sec, linfo_str_off, test->str_sec_size, &linfo_size); if (IS_ERR(patched_linfo)) { fprintf(stderr, "error in creating raw bpf_line_info"); err = -1; goto done; } attr.prog_type = test->prog_type; attr.insns = ptr_to_u64(test->insns); attr.insn_cnt = probe_prog_length(test->insns); attr.license = ptr_to_u64("GPL"); attr.prog_btf_fd = btf_fd; attr.func_info_rec_size = test->func_info_rec_size; attr.func_info_cnt = test->func_info_cnt; attr.func_info = ptr_to_u64(test->func_info); attr.log_buf = ptr_to_u64(btf_log_buf); attr.log_size = BTF_LOG_BUF_SIZE; attr.log_level = 1; if (linfo_size) { attr.line_info_rec_size = test->line_info_rec_size; attr.line_info = ptr_to_u64(patched_linfo); attr.line_info_cnt = linfo_size / attr.line_info_rec_size; } prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr)); err = ((prog_fd == -1) != test->expected_prog_load_failure); if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d", prog_fd, test->expected_prog_load_failure, errno) || CHECK(test->err_str && !strstr(btf_log_buf, test->err_str), "expected err_str:%s", test->err_str)) { err = -1; goto done; } if (prog_fd == -1) goto done; err = test_get_finfo(test, prog_fd); if (err) goto done; err = test_get_linfo(test, patched_linfo, attr.line_info_cnt, prog_fd); if (err) goto done; done: if (!err) fprintf(stderr, "OK"); if (*btf_log_buf && (err || args.always_log)) fprintf(stderr, "\n%s", btf_log_buf); if (btf_fd != -1) close(btf_fd); if (prog_fd != -1) close(prog_fd); if (!IS_ERR(patched_linfo)) free(patched_linfo); return err; } static int test_info_raw(void) { unsigned int i; int err = 0; if (args.info_raw_test_num) return count_result(do_test_info_raw(args.info_raw_test_num)); for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++) err |= count_result(do_test_info_raw(i)); return err; } static void usage(const char *cmd) { fprintf(stderr, "Usage: %s [-l] [[-r btf_raw_test_num (1 - %zu)] |\n" "\t[-g btf_get_info_test_num (1 - %zu)] |\n" "\t[-f btf_file_test_num (1 - %zu)] |\n" "\t[-k btf_prog_info_raw_test_num (1 - %zu)] |\n" "\t[-p (pretty print test)]]\n", cmd, ARRAY_SIZE(raw_tests), ARRAY_SIZE(get_info_tests), ARRAY_SIZE(file_tests), ARRAY_SIZE(info_raw_tests)); } static int parse_args(int argc, char **argv) { const char *optstr = "lpk:f:r:g:"; int opt; while ((opt = getopt(argc, argv, optstr)) != -1) { switch (opt) { case 'l': args.always_log = true; break; case 'f': args.file_test_num = atoi(optarg); args.file_test = true; break; case 'r': args.raw_test_num = atoi(optarg); args.raw_test = true; break; case 'g': args.get_info_test_num = atoi(optarg); args.get_info_test = true; break; case 'p': args.pprint_test = true; break; case 'k': args.info_raw_test_num = atoi(optarg); args.info_raw_test = true; break; case 'h': usage(argv[0]); exit(0); default: usage(argv[0]); return -1; } } if (args.raw_test_num && (args.raw_test_num < 1 || args.raw_test_num > ARRAY_SIZE(raw_tests))) { fprintf(stderr, "BTF raw test number must be [1 - %zu]\n", ARRAY_SIZE(raw_tests)); return -1; } if (args.file_test_num && (args.file_test_num < 1 || args.file_test_num > ARRAY_SIZE(file_tests))) { fprintf(stderr, "BTF file test number must be [1 - %zu]\n", ARRAY_SIZE(file_tests)); return -1; } if (args.get_info_test_num && (args.get_info_test_num < 1 || args.get_info_test_num > ARRAY_SIZE(get_info_tests))) { fprintf(stderr, "BTF get info test number must be [1 - %zu]\n", ARRAY_SIZE(get_info_tests)); return -1; } if (args.info_raw_test_num && (args.info_raw_test_num < 1 || args.info_raw_test_num > ARRAY_SIZE(info_raw_tests))) { fprintf(stderr, "BTF prog info raw test number must be [1 - %zu]\n", ARRAY_SIZE(info_raw_tests)); return -1; } return 0; } static void print_summary(void) { fprintf(stderr, "PASS:%u SKIP:%u FAIL:%u\n", pass_cnt - skip_cnt, skip_cnt, error_cnt); } int main(int argc, char **argv) { int err = 0; err = parse_args(argc, argv); if (err) return err; if (args.always_log) libbpf_set_print(__base_pr, __base_pr, __base_pr); if (args.raw_test) err |= test_raw(); if (args.get_info_test) err |= test_get_info(); if (args.file_test) err |= test_file(); if (args.pprint_test) err |= test_pprint(); if (args.info_raw_test) err |= test_info_raw(); if (args.raw_test || args.get_info_test || args.file_test || args.pprint_test || args.info_raw_test) goto done; err |= test_raw(); err |= test_get_info(); err |= test_file(); err |= test_info_raw(); done: print_summary(); return err; }
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