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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright Amazon.com Inc. or its affiliates */
3#include <test_progs.h>
4#include "csum_diff_test.skel.h"
5
6#define BUFF_SZ 512
7
8struct testcase {
9 unsigned long long to_buff[BUFF_SZ / 8];
10 unsigned int to_buff_len;
11 unsigned long long from_buff[BUFF_SZ / 8];
12 unsigned int from_buff_len;
13 unsigned short seed;
14 unsigned short result;
15};
16
17#define NUM_PUSH_TESTS 4
18
19struct testcase push_tests[NUM_PUSH_TESTS] = {
20 {
21 .to_buff = {
22 0xdeadbeefdeadbeef,
23 },
24 .to_buff_len = 8,
25 .from_buff = {},
26 .from_buff_len = 0,
27 .seed = 0,
28 .result = 0x3b3b
29 },
30 {
31 .to_buff = {
32 0xdeadbeefdeadbeef,
33 0xbeefdeadbeefdead,
34 },
35 .to_buff_len = 16,
36 .from_buff = {},
37 .from_buff_len = 0,
38 .seed = 0x1234,
39 .result = 0x88aa
40 },
41 {
42 .to_buff = {
43 0xdeadbeefdeadbeef,
44 0xbeefdeadbeefdead,
45 },
46 .to_buff_len = 15,
47 .from_buff = {},
48 .from_buff_len = 0,
49 .seed = 0x1234,
50#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
51 .result = 0xcaa9
52#else
53 .result = 0x87fd
54#endif
55 },
56 {
57 .to_buff = {
58 0x327b23c66b8b4567,
59 0x66334873643c9869,
60 0x19495cff74b0dc51,
61 0x625558ec2ae8944a,
62 0x46e87ccd238e1f29,
63 0x507ed7ab3d1b58ba,
64 0x41b71efb2eb141f2,
65 0x7545e14679e2a9e3,
66 0x5bd062c2515f007c,
67 0x4db127f812200854,
68 0x1f16e9e80216231b,
69 0x66ef438d1190cde7,
70 0x3352255a140e0f76,
71 0x0ded7263109cf92e,
72 0x1befd79f7fdcc233,
73 0x6b68079a41a7c4c9,
74 0x25e45d324e6afb66,
75 0x431bd7b7519b500d,
76 0x7c83e4583f2dba31,
77 0x62bbd95a257130a3,
78 0x628c895d436c6125,
79 0x721da317333ab105,
80 0x2d1d5ae92443a858,
81 0x75a2a8d46763845e,
82 0x79838cb208edbdab,
83 0x0b03e0c64353d0cd,
84 0x54e49eb4189a769b,
85 0x2ca8861171f32454,
86 0x02901d820836c40e,
87 0x081386413a95f874,
88 0x7c3dbd3d1e7ff521,
89 0x6ceaf087737b8ddc,
90 0x4516dde922221a70,
91 0x614fd4a13006c83e,
92 0x5577f8e1419ac241,
93 0x05072367440badfc,
94 0x77465f013804823e,
95 0x5c482a977724c67e,
96 0x5e884adc2463b9ea,
97 0x2d51779651ead36b,
98 0x153ea438580bd78f,
99 0x70a64e2a3855585c,
100 0x2a487cb06a2342ec,
101 0x725a06fb1d4ed43b,
102 0x57e4ccaf2cd89a32,
103 0x4b588f547a6d8d3c,
104 0x6de91b18542289ec,
105 0x7644a45c38437fdb,
106 0x684a481a32fff902,
107 0x749abb43579478fe,
108 0x1ba026fa3dc240fb,
109 0x75c6c33a79a1deaa,
110 0x70c6a52912e685fb,
111 0x374a3fe6520eedd1,
112 0x23f9c13c4f4ef005,
113 0x275ac794649bb77c,
114 0x1cf10fd839386575,
115 0x235ba861180115be,
116 0x354fe9f947398c89,
117 0x741226bb15b5af5c,
118 0x10233c990d34b6a8,
119 0x615740953f6ab60f,
120 0x77ae35eb7e0c57b1,
121 0x310c50b3579be4f1,
122 },
123 .to_buff_len = 512,
124 .from_buff = {},
125 .from_buff_len = 0,
126 .seed = 0xffff,
127 .result = 0xca45
128 },
129};
130
131#define NUM_PULL_TESTS 4
132
133struct testcase pull_tests[NUM_PULL_TESTS] = {
134 {
135 .from_buff = {
136 0xdeadbeefdeadbeef,
137 },
138 .from_buff_len = 8,
139 .to_buff = {},
140 .to_buff_len = 0,
141 .seed = 0,
142 .result = 0xc4c4
143 },
144 {
145 .from_buff = {
146 0xdeadbeefdeadbeef,
147 0xbeefdeadbeefdead,
148 },
149 .from_buff_len = 16,
150 .to_buff = {},
151 .to_buff_len = 0,
152 .seed = 0x1234,
153 .result = 0x9bbd
154 },
155 {
156 .from_buff = {
157 0xdeadbeefdeadbeef,
158 0xbeefdeadbeefdead,
159 },
160 .from_buff_len = 15,
161 .to_buff = {},
162 .to_buff_len = 0,
163 .seed = 0x1234,
164#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
165 .result = 0x59be
166#else
167 .result = 0x9c6a
168#endif
169 },
170 {
171 .from_buff = {
172 0x327b23c66b8b4567,
173 0x66334873643c9869,
174 0x19495cff74b0dc51,
175 0x625558ec2ae8944a,
176 0x46e87ccd238e1f29,
177 0x507ed7ab3d1b58ba,
178 0x41b71efb2eb141f2,
179 0x7545e14679e2a9e3,
180 0x5bd062c2515f007c,
181 0x4db127f812200854,
182 0x1f16e9e80216231b,
183 0x66ef438d1190cde7,
184 0x3352255a140e0f76,
185 0x0ded7263109cf92e,
186 0x1befd79f7fdcc233,
187 0x6b68079a41a7c4c9,
188 0x25e45d324e6afb66,
189 0x431bd7b7519b500d,
190 0x7c83e4583f2dba31,
191 0x62bbd95a257130a3,
192 0x628c895d436c6125,
193 0x721da317333ab105,
194 0x2d1d5ae92443a858,
195 0x75a2a8d46763845e,
196 0x79838cb208edbdab,
197 0x0b03e0c64353d0cd,
198 0x54e49eb4189a769b,
199 0x2ca8861171f32454,
200 0x02901d820836c40e,
201 0x081386413a95f874,
202 0x7c3dbd3d1e7ff521,
203 0x6ceaf087737b8ddc,
204 0x4516dde922221a70,
205 0x614fd4a13006c83e,
206 0x5577f8e1419ac241,
207 0x05072367440badfc,
208 0x77465f013804823e,
209 0x5c482a977724c67e,
210 0x5e884adc2463b9ea,
211 0x2d51779651ead36b,
212 0x153ea438580bd78f,
213 0x70a64e2a3855585c,
214 0x2a487cb06a2342ec,
215 0x725a06fb1d4ed43b,
216 0x57e4ccaf2cd89a32,
217 0x4b588f547a6d8d3c,
218 0x6de91b18542289ec,
219 0x7644a45c38437fdb,
220 0x684a481a32fff902,
221 0x749abb43579478fe,
222 0x1ba026fa3dc240fb,
223 0x75c6c33a79a1deaa,
224 0x70c6a52912e685fb,
225 0x374a3fe6520eedd1,
226 0x23f9c13c4f4ef005,
227 0x275ac794649bb77c,
228 0x1cf10fd839386575,
229 0x235ba861180115be,
230 0x354fe9f947398c89,
231 0x741226bb15b5af5c,
232 0x10233c990d34b6a8,
233 0x615740953f6ab60f,
234 0x77ae35eb7e0c57b1,
235 0x310c50b3579be4f1,
236 },
237 .from_buff_len = 512,
238 .to_buff = {},
239 .to_buff_len = 0,
240 .seed = 0xffff,
241 .result = 0x35ba
242 },
243};
244
245#define NUM_DIFF_TESTS 4
246
247struct testcase diff_tests[NUM_DIFF_TESTS] = {
248 {
249 .from_buff = {
250 0xdeadbeefdeadbeef,
251 },
252 .from_buff_len = 8,
253 .to_buff = {
254 0xabababababababab,
255 },
256 .to_buff_len = 8,
257 .seed = 0,
258 .result = 0x7373
259 },
260 {
261 .from_buff = {
262 0xdeadbeefdeadbeef,
263 },
264 .from_buff_len = 7,
265 .to_buff = {
266 0xabababababababab,
267 },
268 .to_buff_len = 7,
269 .seed = 0,
270#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
271 .result = 0xa673
272#else
273 .result = 0x73b7
274#endif
275 },
276 {
277 .from_buff = {
278 0,
279 },
280 .from_buff_len = 8,
281 .to_buff = {
282 0xabababababababab,
283 },
284 .to_buff_len = 8,
285 .seed = 0,
286 .result = 0xaeae
287 },
288 {
289 .from_buff = {
290 0xdeadbeefdeadbeef
291 },
292 .from_buff_len = 8,
293 .to_buff = {
294 0,
295 },
296 .to_buff_len = 8,
297 .seed = 0xffff,
298 .result = 0xc4c4
299 },
300};
301
302#define NUM_EDGE_TESTS 4
303
304struct testcase edge_tests[NUM_EDGE_TESTS] = {
305 {
306 .from_buff = {},
307 .from_buff_len = 0,
308 .to_buff = {},
309 .to_buff_len = 0,
310 .seed = 0,
311 .result = 0
312 },
313 {
314 .from_buff = {
315 0x1234
316 },
317 .from_buff_len = 0,
318 .to_buff = {
319 0x1234
320 },
321 .to_buff_len = 0,
322 .seed = 0,
323 .result = 0
324 },
325 {
326 .from_buff = {},
327 .from_buff_len = 0,
328 .to_buff = {},
329 .to_buff_len = 0,
330 .seed = 0x1234,
331 .result = 0x1234
332 },
333 {
334 .from_buff = {},
335 .from_buff_len = 512,
336 .to_buff = {},
337 .to_buff_len = 0,
338 .seed = 0xffff,
339 .result = 0xffff
340 },
341};
342
343static unsigned short trigger_csum_diff(const struct csum_diff_test *skel)
344{
345 u8 tmp_out[64 << 2] = {};
346 u8 tmp_in[64] = {};
347 int err;
348 int pfd;
349
350 LIBBPF_OPTS(bpf_test_run_opts, topts,
351 .data_in = tmp_in,
352 .data_size_in = sizeof(tmp_in),
353 .data_out = tmp_out,
354 .data_size_out = sizeof(tmp_out),
355 .repeat = 1,
356 );
357 pfd = bpf_program__fd(skel->progs.compute_checksum);
358 err = bpf_prog_test_run_opts(pfd, &topts);
359 if (err)
360 return -1;
361
362 return skel->bss->result;
363}
364
365static void test_csum_diff(struct testcase *tests, int num_tests)
366{
367 struct csum_diff_test *skel;
368 unsigned short got;
369 int err;
370
371 for (int i = 0; i < num_tests; i++) {
372 skel = csum_diff_test__open();
373 if (!ASSERT_OK_PTR(skel, "csum_diff_test open"))
374 return;
375
376 skel->rodata->to_buff_len = tests[i].to_buff_len;
377 skel->rodata->from_buff_len = tests[i].from_buff_len;
378
379 err = csum_diff_test__load(skel);
380 if (!ASSERT_EQ(err, 0, "csum_diff_test load"))
381 goto out;
382
383 memcpy(skel->bss->to_buff, tests[i].to_buff, tests[i].to_buff_len);
384 memcpy(skel->bss->from_buff, tests[i].from_buff, tests[i].from_buff_len);
385 skel->bss->seed = tests[i].seed;
386
387 got = trigger_csum_diff(skel);
388 ASSERT_EQ(got, tests[i].result, "csum_diff result");
389
390 csum_diff_test__destroy(skel);
391 }
392
393 return;
394out:
395 csum_diff_test__destroy(skel);
396}
397
398void test_test_csum_diff(void)
399{
400 if (test__start_subtest("csum_diff_push"))
401 test_csum_diff(push_tests, NUM_PUSH_TESTS);
402 if (test__start_subtest("csum_diff_pull"))
403 test_csum_diff(pull_tests, NUM_PULL_TESTS);
404 if (test__start_subtest("csum_diff_diff"))
405 test_csum_diff(diff_tests, NUM_DIFF_TESTS);
406 if (test__start_subtest("csum_diff_edge"))
407 test_csum_diff(edge_tests, NUM_EDGE_TESTS);
408}