1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright (c) 2020 Facebook */
  3#include <test_progs.h>
  4
  5const char *err_str;
  6bool found;
  7
  8static int libbpf_debug_print(enum libbpf_print_level level,
  9			      const char *format, va_list args)
 10{
 11	char *log_buf;
 12
 13	if (level != LIBBPF_WARN ||
 14	    strcmp(format, "libbpf: \n%s\n")) {
 15		vprintf(format, args);
 16		return 0;
 17	}
 18
 19	log_buf = va_arg(args, char *);
 20	if (!log_buf)
 21		goto out;
 22	if (err_str && strstr(log_buf, err_str) == 0)
 23		found = true;
 24out:
 25	printf(format, log_buf);
 26	return 0;
 27}
 28
 29extern int extra_prog_load_log_flags;
 30
 31static int check_load(const char *file)
 32{
 
 33	struct bpf_object *obj = NULL;
 34	struct bpf_program *prog;
 35	int err;
 36
 
 
 
 
 
 37	found = false;
 38
 39	obj = bpf_object__open_file(file, NULL);
 40	err = libbpf_get_error(obj);
 41	if (err)
 42		return err;
 43
 44	prog = bpf_object__next_program(obj, NULL);
 45	if (!prog) {
 46		err = -ENOENT;
 47		goto err_out;
 48	}
 49
 50	bpf_program__set_flags(prog, BPF_F_TEST_RND_HI32);
 51	bpf_program__set_log_level(prog, extra_prog_load_log_flags);
 52
 53	err = bpf_object__load(obj);
 54
 55err_out:
 56	bpf_object__close(obj);
 57	return err;
 58}
 59
 60struct test_def {
 61	const char *file;
 62	const char *err_str;
 63};
 64
 65void test_test_global_funcs(void)
 66{
 67	struct test_def tests[] = {
 68		{ "test_global_func1.bpf.o", "combined stack size of 4 calls is 544" },
 69		{ "test_global_func2.bpf.o" },
 70		{ "test_global_func3.bpf.o", "the call stack of 8 frames" },
 71		{ "test_global_func4.bpf.o" },
 72		{ "test_global_func5.bpf.o", "expected pointer to ctx, but got PTR" },
 73		{ "test_global_func6.bpf.o", "modified ctx ptr R2" },
 74		{ "test_global_func7.bpf.o", "foo() doesn't return scalar" },
 75		{ "test_global_func8.bpf.o" },
 76		{ "test_global_func9.bpf.o" },
 77		{ "test_global_func10.bpf.o", "invalid indirect read from stack" },
 78		{ "test_global_func11.bpf.o", "Caller passes invalid args into func#1" },
 79		{ "test_global_func12.bpf.o", "invalid mem access 'mem_or_null'" },
 80		{ "test_global_func13.bpf.o", "Caller passes invalid args into func#1" },
 81		{ "test_global_func14.bpf.o", "reference type('FWD S') size cannot be determined" },
 82		{ "test_global_func15.bpf.o", "At program exit the register R0 has value" },
 83		{ "test_global_func16.bpf.o", "invalid indirect read from stack" },
 84		{ "test_global_func17.bpf.o", "Caller passes invalid args into func#1" },
 85	};
 86	libbpf_print_fn_t old_print_fn = NULL;
 87	int err, i, duration = 0;
 88
 89	old_print_fn = libbpf_set_print(libbpf_debug_print);
 90
 91	for (i = 0; i < ARRAY_SIZE(tests); i++) {
 92		const struct test_def *test = &tests[i];
 93
 94		if (!test__start_subtest(test->file))
 95			continue;
 96
 97		err_str = test->err_str;
 98		err = check_load(test->file);
 99		CHECK_FAIL(!!err ^ !!err_str);
100		if (err_str)
101			CHECK(found, "", "expected string '%s'", err_str);
102	}
103	libbpf_set_print(old_print_fn);
104}

 1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2020 Facebook */
 3#include <test_progs.h>
 4
 5const char *err_str;
 6bool found;
 7
 8static int libbpf_debug_print(enum libbpf_print_level level,
 9			      const char *format, va_list args)
10{
11	char *log_buf;
12
13	if (level != LIBBPF_WARN ||
14	    strcmp(format, "libbpf: \n%s\n")) {
15		vprintf(format, args);
16		return 0;
17	}
18
19	log_buf = va_arg(args, char *);
20	if (!log_buf)
21		goto out;
22	if (err_str && strstr(log_buf, err_str) == 0)
23		found = true;
24out:
25	printf(format, log_buf);
26	return 0;
27}
28
29extern int extra_prog_load_log_flags;
30
31static int check_load(const char *file)
32{
33	struct bpf_prog_load_attr attr;
34	struct bpf_object *obj = NULL;
35	int err, prog_fd;
 
36
37	memset(&attr, 0, sizeof(struct bpf_prog_load_attr));
38	attr.file = file;
39	attr.prog_type = BPF_PROG_TYPE_UNSPEC;
40	attr.log_level = extra_prog_load_log_flags;
41	attr.prog_flags = BPF_F_TEST_RND_HI32;
42	found = false;
43	err = bpf_prog_load_xattr(&attr, &obj, &prog_fd);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
44	bpf_object__close(obj);
45	return err;
46}
47
48struct test_def {
49	const char *file;
50	const char *err_str;
51};
52
53void test_test_global_funcs(void)
54{
55	struct test_def tests[] = {
56		{ "test_global_func1.o", "combined stack size of 4 calls is 544" },
57		{ "test_global_func2.o" },
58		{ "test_global_func3.o" , "the call stack of 8 frames" },
59		{ "test_global_func4.o" },
60		{ "test_global_func5.o" , "expected pointer to ctx, but got PTR" },
61		{ "test_global_func6.o" , "modified ctx ptr R2" },
62		{ "test_global_func7.o" , "foo() doesn't return scalar" },
63		{ "test_global_func8.o" },
64		{ "test_global_func9.o" },
65		{ "test_global_func10.o", "invalid indirect read from stack" },
66		{ "test_global_func11.o", "Caller passes invalid args into func#1" },
67		{ "test_global_func12.o", "invalid mem access 'mem_or_null'" },
68		{ "test_global_func13.o", "Caller passes invalid args into func#1" },
69		{ "test_global_func14.o", "reference type('FWD S') size cannot be determined" },
70		{ "test_global_func15.o", "At program exit the register R0 has value" },
71		{ "test_global_func16.o", "invalid indirect read from stack" },
 
72	};
73	libbpf_print_fn_t old_print_fn = NULL;
74	int err, i, duration = 0;
75
76	old_print_fn = libbpf_set_print(libbpf_debug_print);
77
78	for (i = 0; i < ARRAY_SIZE(tests); i++) {
79		const struct test_def *test = &tests[i];
80
81		if (!test__start_subtest(test->file))
82			continue;
83
84		err_str = test->err_str;
85		err = check_load(test->file);
86		CHECK_FAIL(!!err ^ !!err_str);
87		if (err_str)
88			CHECK(found, "", "expected string '%s'", err_str);
89	}
90	libbpf_set_print(old_print_fn);
91}