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1 /**********************************************************************
2 Copyright(c) 2011-2015 Intel Corporation All rights reserved.
4 Redistribution and use in source and binary forms, with or without
5 modification, are permitted provided that the following conditions
7 * Redistributions of source code must retain the above copyright
8 notice, this list of conditions and the following disclaimer.
9 * Redistributions in binary form must reproduce the above copyright
10 notice, this list of conditions and the following disclaimer in
11 the documentation and/or other materials provided with the
13 * Neither the name of Intel Corporation nor the names of its
14 contributors may be used to endorse or promote products derived
15 from this software without specific prior written permission.
17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 **********************************************************************/
37 #define TEST_SOURCES 16
39 #define TEST_MEM ((TEST_SOURCES + 2)*(TEST_LEN))
41 # define TEST_SEED 0x1234
44 int ref_multi_pq(int vects
, int len
, void **array
)
47 unsigned char p
, q
, s
;
48 unsigned char **src
= (unsigned char **)array
;
50 for (i
= 0; i
< len
; i
++) {
51 q
= p
= src
[vects
- 3][i
];
53 for (j
= vects
- 4; j
>= 0; j
--) {
55 q
= s
^ ((q
<< 1) ^ ((q
& 0x80) ? 0x1d : 0)); // mult by GF{2}
58 src
[vects
- 2][i
] = p
; // second to last pointer is p
59 src
[vects
- 1][i
] = q
; // last pointer is q
64 // Generates pseudo-random data
66 void rand_buffer(unsigned char *buf
, long buffer_size
)
69 for (i
= 0; i
< buffer_size
; i
++)
73 int main(int argc
, char *argv
[])
75 int i
, j
, k
, ret
, fail
= 0;
76 void *buffs
[TEST_SOURCES
+ 2];
78 char *tmp_buf
[TEST_SOURCES
+ 2];
81 printf("Test pq_check_test %d sources X %d bytes\n", TEST_SOURCES
, TEST_LEN
);
85 // Allocate the arrays
86 for (i
= 0; i
< TEST_SOURCES
+ 2; i
++) {
88 if (posix_memalign(&buf
, 16, TEST_LEN
)) {
89 printf("alloc error: Fail");
96 for (i
= 0; i
< TEST_SOURCES
+ 2; i
++)
97 memset(buffs
[i
], 0, TEST_LEN
);
99 ref_multi_pq(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
100 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
103 printf("\nfail zero test %d\n", ret
);
106 ((char *)(buffs
[0]))[TEST_LEN
- 2] = 0x7; // corrupt buffer
107 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
110 printf("\nfail corrupt buffer test %d\n", ret
);
112 ((char *)(buffs
[0]))[TEST_LEN
- 2] = 0; // un-corrupt buffer
114 // Test corrupted buffer any location on all sources
115 for (j
= 0; j
< TEST_SOURCES
+ 2; j
++) {
116 for (i
= TEST_LEN
- 1; i
>= 0; i
--) {
117 ((char *)buffs
[j
])[i
] = 0x5; // corrupt buffer
118 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
121 printf("\nfail corrupt zero buffer test j=%d, i=%d\n", j
, i
);
124 ((char *)buffs
[j
])[i
] = 0; // un-corrupt buffer
130 for (i
= 0; i
< TEST_SOURCES
+ 2; i
++)
131 rand_buffer(buffs
[i
], TEST_LEN
);
133 ref_multi_pq(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
134 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
137 printf("fail first rand test %d\n", ret
);
140 c
= ((char *)(buffs
[0]))[TEST_LEN
- 2];
141 ((char *)(buffs
[0]))[TEST_LEN
- 2] = c
^ 0x1;
142 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
145 printf("\nFail corrupt buffer test, passed when should have failed\n");
147 ((char *)(buffs
[0]))[TEST_LEN
- 2] = c
; // un-corrupt buffer
149 // Test corrupted buffer any location on all sources w/ random data
150 for (j
= 0; j
< TEST_SOURCES
+ 2; j
++) {
151 for (i
= TEST_LEN
- 1; i
>= 0; i
--) {
152 // Check it still passes
153 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
154 if (ret
!= 0) { // should pass
157 ("\nFail rand test with un-corrupted buffer j=%d, i=%d\n",
161 c
= ((char *)buffs
[j
])[i
];
162 ((char *)buffs
[j
])[i
] = c
^ 1; // corrupt buffer
163 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
, buffs
);
164 if (ret
== 0) { // Check it now fails
166 printf("\nfail corrupt buffer test j=%d, i=%d\n", j
, i
);
169 ((char *)buffs
[j
])[i
] = c
; // un-corrupt buffer
174 // Test various number of sources, full length
175 for (j
= 4; j
<= TEST_SOURCES
+ 2; j
++) {
177 for (i
= 0; i
< j
; i
++)
178 rand_buffer(buffs
[i
], TEST_LEN
);
180 // Generate p,q parity for this number of sources
181 ref_multi_pq(j
, TEST_LEN
, buffs
);
183 // Set errors up in each source and len position
184 for (i
= 0; i
< j
; i
++) {
185 for (k
= 0; k
< TEST_LEN
; k
++) {
186 // See if it still passes
187 ret
= pq_check(j
, TEST_LEN
, buffs
);
188 if (ret
!= 0) { // Should pass
189 printf("\nfail rand fixed len test %d sources\n", j
);
194 c
= ((char *)buffs
[i
])[k
];
195 ((char *)buffs
[i
])[k
] = c
^ 1; // corrupt buffer
197 ret
= pq_check(j
, TEST_LEN
, buffs
);
198 if (ret
== 0) { // Should fail
200 ("\nfail rand fixed len test corrupted buffer %d sources\n",
205 ((char *)buffs
[i
])[k
] = c
; // un-corrupt buffer
213 // Test various number of sources and len
215 while (k
<= TEST_LEN
) {
217 for (j
= 4; j
<= TEST_SOURCES
+ 2; j
++) {
218 for (i
= 0; i
< j
; i
++)
219 rand_buffer(buffs
[i
], k
);
221 // Generate p,q parity for this number of sources
222 ref_multi_pq(j
, k
, buffs
);
224 // Inject errors at various source and len positions
225 for (lerr
= 0; lerr
< k
; lerr
++) {
226 for (serr
= 0; serr
< j
; serr
++) {
227 // See if it still passes
228 ret
= pq_check(j
, k
, buffs
);
229 if (ret
!= 0) { // Should pass
231 ("\nfail rand var src, len test %d sources, len=%d\n",
237 tmp
= (char *)buffs
[serr
];
239 ((char *)buffs
[serr
])[lerr
] = c
^ 1; // corrupt buffer
241 ret
= pq_check(j
, k
, buffs
);
242 if (ret
== 0) { // Should fail
244 ("\nfail rand var src, len test corrupted buffer "
245 "%d sources, len=%d, ret=%d\n", j
, k
,
250 ((char *)buffs
[serr
])[lerr
] = c
; // un-corrupt buffer
259 // Test at the end of buffer
260 for (i
= 0; i
< TEST_LEN
; i
+= 16) {
261 for (j
= 0; j
< TEST_SOURCES
+ 2; j
++) {
262 rand_buffer(buffs
[j
], TEST_LEN
- i
);
263 tmp_buf
[j
] = (char *)buffs
[j
] + i
;
266 pq_gen_base(TEST_SOURCES
+ 2, TEST_LEN
- i
, (void *)tmp_buf
);
269 ret
= pq_check(TEST_SOURCES
+ 2, TEST_LEN
- i
, (void *)tmp_buf
);
271 printf("fail end test - offset: %d, len: %d\n", i
, TEST_LEN
- i
);
276 for (serr
= 0; serr
< TEST_SOURCES
+ 2; serr
++) {
277 for (lerr
= 0; lerr
< (TEST_LEN
- i
); lerr
++) {
278 c
= tmp_buf
[serr
][lerr
];
279 tmp_buf
[serr
][lerr
] = c
^ 1;
282 pq_check(TEST_SOURCES
+ 2, TEST_LEN
- i
, (void *)tmp_buf
);
284 printf("fail end test corrupted buffer - "
285 "offset: %d, len: %d, ret: %d\n", i
,
291 tmp_buf
[serr
][lerr
] = c
;