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      1 /*	$OpenBSD: test_helper.h,v 1.7 2017/03/14 01:10:07 dtucker Exp $	*/
      2 /*
      3  * Copyright (c) 2011 Damien Miller <djm (at) mindrot.org>
      4  *
      5  * Permission to use, copy, modify, and distribute this software for any
      6  * purpose with or without fee is hereby granted, provided that the above
      7  * copyright notice and this permission notice appear in all copies.
      8  *
      9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     16  */
     17 
     18 /* Utility functions/framework for regress tests */
     19 
     20 #ifndef _TEST_HELPER_H
     21 #define _TEST_HELPER_H
     22 
     23 #include "includes.h"
     24 
     25 #include <sys/types.h>
     26 #ifdef HAVE_STDINT_H
     27 # include <stdint.h>
     28 #endif
     29 
     30 #include <openssl/bn.h>
     31 #include <openssl/err.h>
     32 
     33 enum test_predicate {
     34 	TEST_EQ, TEST_NE, TEST_LT, TEST_LE, TEST_GT, TEST_GE
     35 };
     36 typedef void (test_onerror_func_t)(void *);
     37 
     38 /* Supplied by test suite */
     39 void tests(void);
     40 
     41 const char *test_data_file(const char *name);
     42 void test_start(const char *n);
     43 void test_info(char *s, size_t len);
     44 void set_onerror_func(test_onerror_func_t *f, void *ctx);
     45 void test_done(void);
     46 void test_subtest_info(const char *fmt, ...)
     47     __attribute__((format(printf, 1, 2)));
     48 void ssl_err_check(const char *file, int line);
     49 void assert_bignum(const char *file, int line,
     50     const char *a1, const char *a2,
     51     const BIGNUM *aa1, const BIGNUM *aa2, enum test_predicate pred);
     52 void assert_string(const char *file, int line,
     53     const char *a1, const char *a2,
     54     const char *aa1, const char *aa2, enum test_predicate pred);
     55 void assert_mem(const char *file, int line,
     56     const char *a1, const char *a2,
     57     const void *aa1, const void *aa2, size_t l, enum test_predicate pred);
     58 void assert_mem_filled(const char *file, int line,
     59     const char *a1,
     60     const void *aa1, u_char v, size_t l, enum test_predicate pred);
     61 void assert_int(const char *file, int line,
     62     const char *a1, const char *a2,
     63     int aa1, int aa2, enum test_predicate pred);
     64 void assert_size_t(const char *file, int line,
     65     const char *a1, const char *a2,
     66     size_t aa1, size_t aa2, enum test_predicate pred);
     67 void assert_u_int(const char *file, int line,
     68     const char *a1, const char *a2,
     69     u_int aa1, u_int aa2, enum test_predicate pred);
     70 void assert_long(const char *file, int line,
     71     const char *a1, const char *a2,
     72     long aa1, long aa2, enum test_predicate pred);
     73 void assert_long_long(const char *file, int line,
     74     const char *a1, const char *a2,
     75     long long aa1, long long aa2, enum test_predicate pred);
     76 void assert_char(const char *file, int line,
     77     const char *a1, const char *a2,
     78     char aa1, char aa2, enum test_predicate pred);
     79 void assert_ptr(const char *file, int line,
     80     const char *a1, const char *a2,
     81     const void *aa1, const void *aa2, enum test_predicate pred);
     82 void assert_u8(const char *file, int line,
     83     const char *a1, const char *a2,
     84     u_int8_t aa1, u_int8_t aa2, enum test_predicate pred);
     85 void assert_u16(const char *file, int line,
     86     const char *a1, const char *a2,
     87     u_int16_t aa1, u_int16_t aa2, enum test_predicate pred);
     88 void assert_u32(const char *file, int line,
     89     const char *a1, const char *a2,
     90     u_int32_t aa1, u_int32_t aa2, enum test_predicate pred);
     91 void assert_u64(const char *file, int line,
     92     const char *a1, const char *a2,
     93     u_int64_t aa1, u_int64_t aa2, enum test_predicate pred);
     94 
     95 #define TEST_START(n)			test_start(n)
     96 #define TEST_DONE()			test_done()
     97 #define TEST_ONERROR(f, c)		set_onerror_func(f, c)
     98 #define SSL_ERR_CHECK() 		ssl_err_check(__FILE__, __LINE__)
     99 
    100 #define ASSERT_BIGNUM_EQ(a1, a2) \
    101 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    102 #define ASSERT_STRING_EQ(a1, a2) \
    103 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    104 #define ASSERT_MEM_EQ(a1, a2, l) \
    105 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_EQ)
    106 #define ASSERT_MEM_FILLED_EQ(a1, c, l) \
    107 	assert_mem_filled(__FILE__, __LINE__, #a1, a1, c, l, TEST_EQ)
    108 #define ASSERT_MEM_ZERO_EQ(a1, l) \
    109 	assert_mem_filled(__FILE__, __LINE__, #a1, a1, '\0', l, TEST_EQ)
    110 #define ASSERT_INT_EQ(a1, a2) \
    111 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    112 #define ASSERT_SIZE_T_EQ(a1, a2) \
    113 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    114 #define ASSERT_U_INT_EQ(a1, a2) \
    115 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    116 #define ASSERT_LONG_EQ(a1, a2) \
    117 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    118 #define ASSERT_LONG_LONG_EQ(a1, a2) \
    119 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    120 #define ASSERT_CHAR_EQ(a1, a2) \
    121 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    122 #define ASSERT_PTR_EQ(a1, a2) \
    123 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    124 #define ASSERT_U8_EQ(a1, a2) \
    125 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    126 #define ASSERT_U16_EQ(a1, a2) \
    127 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    128 #define ASSERT_U32_EQ(a1, a2) \
    129 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    130 #define ASSERT_U64_EQ(a1, a2) \
    131 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_EQ)
    132 
    133 #define ASSERT_BIGNUM_NE(a1, a2) \
    134 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    135 #define ASSERT_STRING_NE(a1, a2) \
    136 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    137 #define ASSERT_MEM_NE(a1, a2, l) \
    138 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_NE)
    139 #define ASSERT_MEM_ZERO_NE(a1, l) \
    140 	assert_mem_filled(__FILE__, __LINE__, #a1, a1, '\0', l, TEST_NE)
    141 #define ASSERT_INT_NE(a1, a2) \
    142 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    143 #define ASSERT_SIZE_T_NE(a1, a2) \
    144 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    145 #define ASSERT_U_INT_NE(a1, a2) \
    146 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    147 #define ASSERT_LONG_NE(a1, a2) \
    148 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    149 #define ASSERT_LONG_LONG_NE(a1, a2) \
    150 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    151 #define ASSERT_CHAR_NE(a1, a2) \
    152 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    153 #define ASSERT_PTR_NE(a1, a2) \
    154 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    155 #define ASSERT_U8_NE(a1, a2) \
    156 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    157 #define ASSERT_U16_NE(a1, a2) \
    158 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    159 #define ASSERT_U32_NE(a1, a2) \
    160 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    161 #define ASSERT_U64_NE(a1, a2) \
    162 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_NE)
    163 
    164 #define ASSERT_BIGNUM_LT(a1, a2) \
    165 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    166 #define ASSERT_STRING_LT(a1, a2) \
    167 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    168 #define ASSERT_MEM_LT(a1, a2, l) \
    169 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_LT)
    170 #define ASSERT_INT_LT(a1, a2) \
    171 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    172 #define ASSERT_SIZE_T_LT(a1, a2) \
    173 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    174 #define ASSERT_U_INT_LT(a1, a2) \
    175 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    176 #define ASSERT_LONG_LT(a1, a2) \
    177 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    178 #define ASSERT_LONG_LONG_LT(a1, a2) \
    179 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    180 #define ASSERT_CHAR_LT(a1, a2) \
    181 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    182 #define ASSERT_PTR_LT(a1, a2) \
    183 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    184 #define ASSERT_U8_LT(a1, a2) \
    185 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    186 #define ASSERT_U16_LT(a1, a2) \
    187 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    188 #define ASSERT_U32_LT(a1, a2) \
    189 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    190 #define ASSERT_U64_LT(a1, a2) \
    191 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LT)
    192 
    193 #define ASSERT_BIGNUM_LE(a1, a2) \
    194 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    195 #define ASSERT_STRING_LE(a1, a2) \
    196 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    197 #define ASSERT_MEM_LE(a1, a2, l) \
    198 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_LE)
    199 #define ASSERT_INT_LE(a1, a2) \
    200 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    201 #define ASSERT_SIZE_T_LE(a1, a2) \
    202 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    203 #define ASSERT_U_INT_LE(a1, a2) \
    204 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    205 #define ASSERT_LONG_LE(a1, a2) \
    206 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    207 #define ASSERT_LONG_LONG_LE(a1, a2) \
    208 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    209 #define ASSERT_CHAR_LE(a1, a2) \
    210 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    211 #define ASSERT_PTR_LE(a1, a2) \
    212 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    213 #define ASSERT_U8_LE(a1, a2) \
    214 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    215 #define ASSERT_U16_LE(a1, a2) \
    216 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    217 #define ASSERT_U32_LE(a1, a2) \
    218 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    219 #define ASSERT_U64_LE(a1, a2) \
    220 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_LE)
    221 
    222 #define ASSERT_BIGNUM_GT(a1, a2) \
    223 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    224 #define ASSERT_STRING_GT(a1, a2) \
    225 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    226 #define ASSERT_MEM_GT(a1, a2, l) \
    227 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_GT)
    228 #define ASSERT_INT_GT(a1, a2) \
    229 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    230 #define ASSERT_SIZE_T_GT(a1, a2) \
    231 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    232 #define ASSERT_U_INT_GT(a1, a2) \
    233 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    234 #define ASSERT_LONG_GT(a1, a2) \
    235 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    236 #define ASSERT_LONG_LONG_GT(a1, a2) \
    237 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    238 #define ASSERT_CHAR_GT(a1, a2) \
    239 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    240 #define ASSERT_PTR_GT(a1, a2) \
    241 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    242 #define ASSERT_U8_GT(a1, a2) \
    243 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    244 #define ASSERT_U16_GT(a1, a2) \
    245 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    246 #define ASSERT_U32_GT(a1, a2) \
    247 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    248 #define ASSERT_U64_GT(a1, a2) \
    249 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GT)
    250 
    251 #define ASSERT_BIGNUM_GE(a1, a2) \
    252 	assert_bignum(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    253 #define ASSERT_STRING_GE(a1, a2) \
    254 	assert_string(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    255 #define ASSERT_MEM_GE(a1, a2, l) \
    256 	assert_mem(__FILE__, __LINE__, #a1, #a2, a1, a2, l, TEST_GE)
    257 #define ASSERT_INT_GE(a1, a2) \
    258 	assert_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    259 #define ASSERT_SIZE_T_GE(a1, a2) \
    260 	assert_size_t(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    261 #define ASSERT_U_INT_GE(a1, a2) \
    262 	assert_u_int(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    263 #define ASSERT_LONG_GE(a1, a2) \
    264 	assert_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    265 #define ASSERT_LONG_LONG_GE(a1, a2) \
    266 	assert_long_long(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    267 #define ASSERT_CHAR_GE(a1, a2) \
    268 	assert_char(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    269 #define ASSERT_PTR_GE(a1, a2) \
    270 	assert_ptr(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    271 #define ASSERT_U8_GE(a1, a2) \
    272 	assert_u8(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    273 #define ASSERT_U16_GE(a1, a2) \
    274 	assert_u16(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    275 #define ASSERT_U32_GE(a1, a2) \
    276 	assert_u32(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    277 #define ASSERT_U64_GE(a1, a2) \
    278 	assert_u64(__FILE__, __LINE__, #a1, #a2, a1, a2, TEST_GE)
    279 
    280 /* Fuzzing support */
    281 
    282 struct fuzz;
    283 #define FUZZ_1_BIT_FLIP		0x00000001	/* Flip one bit at a time */
    284 #define FUZZ_2_BIT_FLIP		0x00000002	/* Flip two bits at a time */
    285 #define FUZZ_1_BYTE_FLIP	0x00000004	/* Flip one byte at a time */
    286 #define FUZZ_2_BYTE_FLIP	0x00000008	/* Flip two bytes at a time */
    287 #define FUZZ_TRUNCATE_START	0x00000010	/* Truncate from beginning */
    288 #define FUZZ_TRUNCATE_END	0x00000020	/* Truncate from end */
    289 #define FUZZ_BASE64		0x00000040	/* Try all base64 chars */
    290 #define FUZZ_MAX		FUZZ_BASE64
    291 
    292 /* Start fuzzing a blob of data with selected strategies (bitmask) */
    293 struct fuzz *fuzz_begin(u_int strategies, const void *p, size_t l);
    294 
    295 /* Free a fuzz context */
    296 void fuzz_cleanup(struct fuzz *fuzz);
    297 
    298 /* Prepare the next fuzz case in the series */
    299 void fuzz_next(struct fuzz *fuzz);
    300 
    301 /*
    302  * Check whether this fuzz case is identical to the original
    303  * This is slow, but useful if the caller needs to ensure that all tests
    304  * generated change the input (e.g. when fuzzing signatures).
    305  */
    306 int fuzz_matches_original(struct fuzz *fuzz);
    307 
    308 /* Determine whether the current fuzz sequence is exhausted (nonzero = yes) */
    309 int fuzz_done(struct fuzz *fuzz);
    310 
    311 /* Return the length and a pointer to the current fuzzed case */
    312 size_t fuzz_len(struct fuzz *fuzz);
    313 u_char *fuzz_ptr(struct fuzz *fuzz);
    314 
    315 /* Dump the current fuzz case to stderr */
    316 void fuzz_dump(struct fuzz *fuzz);
    317 
    318 #endif /* _TEST_HELPER_H */
    319