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b64eb60f MW |
1 | /* -*-c-*- |
2 | * | |
3 | * Test driver for universal hashing | |
4 | * | |
5 | * (c) 2009 Straylight/Edgeware | |
6 | */ | |
7 | ||
8 | /*----- Licensing notice --------------------------------------------------* | |
9 | * | |
10 | * This file is part of the mLib utilities library. | |
11 | * | |
12 | * mLib is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU Library General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of the | |
15 | * License, or (at your option) any later version. | |
16 | * | |
17 | * mLib is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU Library General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Library General Public | |
23 | * License along with mLib; if not, write to the Free | |
24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
25 | * MA 02111-1307, USA. | |
26 | */ | |
27 | ||
28 | /*----- Header files ------------------------------------------------------*/ | |
29 | ||
b1a20bee MW |
30 | #include "tvec.h" |
31 | #include "tvec-bench.h" | |
32 | #include "tvec-types.h" | |
33 | ||
b64eb60f | 34 | #include "crc32.h" |
b1a20bee | 35 | #include "siphash.h" |
b64eb60f | 36 | #include "unihash.h" |
b64eb60f | 37 | |
b1a20bee | 38 | /*----- Register allocation -----------------------------------------------*/ |
b64eb60f MW |
39 | |
40 | enum { | |
41 | RH, NROUT, | |
42 | RK = NROUT, RM, NREG | |
43 | }; | |
44 | ||
b1a20bee MW |
45 | /*----- Testing utilities -------------------------------------------------*/ |
46 | ||
b64eb60f MW |
47 | struct step { size_t s; }; |
48 | ||
b1a20bee MW |
49 | static void run_step(struct tvec_state *tv, tvec_testfn *fn, void *ctx) |
50 | { | |
51 | static const size_t steps[] = { 1, 5, 6, 7, 8, 23 }; | |
52 | struct step step; | |
53 | size_t i; | |
54 | ||
55 | fn(tv->in, tv->out, 0); | |
56 | tvec_check(tv, "whole buffer"); | |
57 | ||
58 | for (i = 0; i < N(steps); i++) { | |
59 | step.s = steps[i]; | |
60 | fn(tv->in, tv->out, &step); | |
61 | tvec_check(tv, "step = %lu", (unsigned long)steps[i]); | |
62 | } | |
63 | } | |
64 | ||
65 | static const struct tvec_env step_testenv = { 0, 0, 0, 0, run_step, 0, 0 }; | |
66 | ||
67 | static void before_hash(struct tvec_state *tv, void *ctx) | |
68 | { tvec_allocbuffer(&tv->in[RM].v); } | |
69 | ||
70 | /*----- CRC32 -------------------------------------------------------------*/ | |
71 | ||
72 | static const struct tvec_regdef bench_regs[] = { | |
73 | { "msz", &tvty_buffer, RM, TVRF_ID }, | |
74 | TVEC_ENDREGS | |
75 | }; | |
76 | ||
77 | static const struct tvec_regdef crc32_regs[] = { | |
78 | { "m", &tvty_bytes, RM, 0 }, | |
79 | { "h", &tvty_uint, RH, 0, { &tvrange_u32 } }, | |
80 | TVEC_ENDREGS | |
81 | }; | |
82 | ||
b64eb60f MW |
83 | static void test_crc32(const struct tvec_reg *in, struct tvec_reg *out, |
84 | void *ctx) | |
85 | { | |
86 | const struct step *step = ctx; | |
87 | const unsigned char *p = in[RM].v.bytes.p; size_t sz = in[RM].v.bytes.sz; | |
88 | uint32 h; | |
89 | ||
90 | if (!step) | |
91 | out[RH].v.u = crc32(0, p, sz); | |
92 | else { | |
93 | for (h = 0; sz > step->s; p += step->s, sz -= step->s) | |
94 | h = crc32(h, p, step->s); | |
95 | out[RH].v.u = crc32(h, p, sz); | |
96 | } | |
97 | } | |
98 | ||
b1a20bee MW |
99 | static const struct tvec_test crc32_test = |
100 | { "crc32", crc32_regs, &step_testenv, test_crc32 }; | |
adec5584 | 101 | |
b64eb60f MW |
102 | static void bench_crc32(const struct tvec_reg *in, struct tvec_reg *out, |
103 | void *ctx) | |
104 | { crc32(0, in[RM].v.bytes.p, in[RM].v.bytes.sz); } | |
b1a20bee | 105 | |
adec5584 MW |
106 | static const struct tvec_env crc32_benchenv = |
107 | { 0, 0, 0, before_hash }; | |
b1a20bee MW |
108 | static const struct tvec_benchenv crc32_bench = |
109 | { TVEC_BENCHINIT, 1, -1, RM, &crc32_benchenv }; | |
110 | static const struct tvec_test crc32_benchtest = | |
111 | { "crc32-bench", bench_regs, &crc32_bench._env, bench_crc32 }; | |
b64eb60f | 112 | |
b1a20bee MW |
113 | /*----- SipHash -----------------------------------------------------------*/ |
114 | ||
115 | static const struct tvec_urange | |
116 | siphash_keyrange = { SIPHASH_KEYSZ, SIPHASH_KEYSZ }, | |
117 | siphash_hashrange = { 8, 8 }; | |
118 | ||
119 | static const struct tvec_regdef siphash_regs[] = { | |
120 | { "k", &tvty_bytes, RK, 0, { &siphash_keyrange } }, | |
121 | { "m", &tvty_bytes, RM, 0 }, | |
122 | { "h", &tvty_bytes, RH, 0, { &siphash_hashrange } }, | |
123 | TVEC_ENDREGS | |
124 | }; | |
125 | ||
126 | static void test_siphash(const struct tvec_reg *in, struct tvec_reg *out, | |
b64eb60f MW |
127 | void *ctx) |
128 | { | |
129 | const struct step *step = ctx; | |
b64eb60f | 130 | const unsigned char *p = in[RM].v.bytes.p; size_t sz = in[RM].v.bytes.sz; |
b1a20bee MW |
131 | struct siphash_key k; |
132 | struct siphash s; | |
133 | kludge64 h; | |
b64eb60f | 134 | |
b1a20bee | 135 | siphash_setkey(&k, in[RK].v.bytes.p); |
b64eb60f | 136 | if (!step) |
b1a20bee | 137 | h = siphash(&k, p, sz); |
b64eb60f | 138 | else { |
b1a20bee MW |
139 | siphash_init(&s, &k); |
140 | for (; sz > step->s; p += step->s, sz -= step->s) | |
141 | siphash_hash(&s, p, step->s); | |
142 | siphash_hash(&s, p, sz); | |
143 | h = siphash_done(&s); | |
b64eb60f | 144 | } |
b1a20bee | 145 | tvec_allocbytes(&out[RH].v, 8); STORE64_L_(out[RH].v.bytes.p, h); |
b64eb60f MW |
146 | } |
147 | ||
b1a20bee MW |
148 | static const struct tvec_test siphash_test = |
149 | { "siphash", siphash_regs, &step_testenv, test_siphash }; | |
b64eb60f | 150 | |
b1a20bee MW |
151 | static void setup_siphash(struct tvec_state *tv, |
152 | const struct tvec_env *env, void *pctx, void *ctx) | |
b64eb60f | 153 | { |
b1a20bee MW |
154 | struct siphash_key *k = ctx; |
155 | ASSIGN64(k->k0, 0); ASSIGN64(k->k1, 0); | |
156 | } | |
b64eb60f | 157 | |
b1a20bee MW |
158 | static void bench_siphash(const struct tvec_reg *in, struct tvec_reg *out, |
159 | void *ctx) | |
160 | { siphash(ctx, in[RM].v.bytes.p, in[RM].v.bytes.sz); } | |
b64eb60f | 161 | |
b1a20bee MW |
162 | static const struct tvec_env siphash_benchenv = |
163 | { sizeof(struct siphash_key), setup_siphash, 0, before_hash }; | |
164 | static const struct tvec_benchenv siphash_bench = | |
165 | { TVEC_BENCHINIT, 1, -1, RM, &siphash_benchenv }; | |
166 | static const struct tvec_test siphash_benchtest = | |
167 | { "siphash-bench", bench_regs, &siphash_bench._env, bench_siphash }; | |
b64eb60f | 168 | |
b1a20bee | 169 | /*----- Unihash -----------------------------------------------------------*/ |
e63124bc | 170 | |
b64eb60f | 171 | static const struct tvec_regdef unihash_regs[] = { |
d056fbdf MW |
172 | { "k", &tvty_uint, RK, 0, { &tvrange_u32 } }, |
173 | { "m", &tvty_bytes, RM, 0 }, | |
174 | { "h", &tvty_uint, RH, 0, { &tvrange_u32 } }, | |
db2bf411 | 175 | TVEC_ENDREGS |
b64eb60f MW |
176 | }; |
177 | ||
b1a20bee MW |
178 | static void test_unihash(const struct tvec_reg *in, struct tvec_reg *out, |
179 | void *ctx) | |
180 | { | |
181 | const struct step *step = ctx; | |
182 | unihash_info ui; | |
183 | const unsigned char *p = in[RM].v.bytes.p; size_t sz = in[RM].v.bytes.sz; | |
184 | uint32 h; | |
b64eb60f | 185 | |
b1a20bee MW |
186 | unihash_setkey(&ui, in[RK].v.u); |
187 | if (!step) | |
188 | out[RH].v.u = unihash(&ui, p, sz); | |
189 | else { | |
190 | for (h = UNIHASH_INIT(&ui); sz > step->s; p += step->s, sz -= step->s) | |
191 | h = unihash_hash(&ui, h, p, step->s); | |
192 | out[RH].v.u = unihash_hash(&ui, h, p, sz); | |
193 | } | |
194 | } | |
b64eb60f | 195 | |
b1a20bee MW |
196 | static const struct tvec_test unihash_test = |
197 | { "unihash", unihash_regs, &step_testenv, test_unihash }; | |
198 | ||
199 | static void setup_unihash(struct tvec_state *tv, | |
200 | const struct tvec_env *env, void *pctx, void *ctx) | |
201 | { unihash_setkey(ctx, 0); } | |
202 | ||
203 | static void bench_unihash(const struct tvec_reg *in, struct tvec_reg *out, | |
204 | void *ctx) | |
205 | { unihash_hash(ctx, 0, in[RM].v.bytes.p, in[RM].v.bytes.sz); } | |
206 | ||
207 | static const struct tvec_env unihash_benchenv = | |
208 | { sizeof(unihash_info), setup_unihash, 0, before_hash }; | |
c91413e6 | 209 | static const struct tvec_benchenv unihash_bench = |
e63124bc | 210 | { TVEC_BENCHINIT, 1, -1, RM, &unihash_benchenv }; |
b1a20bee MW |
211 | static const struct tvec_test unihash_benchtest = |
212 | { "unihash-bench", bench_regs, &unihash_bench._env, bench_unihash }; | |
213 | ||
214 | /*----- Main program ------------------------------------------------------*/ | |
b64eb60f | 215 | |
b1a20bee MW |
216 | static const struct tvec_test *const tests[] = { |
217 | &crc32_test, &crc32_benchtest, | |
218 | &siphash_test, &siphash_benchtest, | |
219 | &unihash_test, &unihash_benchtest, | |
220 | 0 | |
b64eb60f MW |
221 | }; |
222 | ||
c5e0e403 | 223 | static const struct tvec_config testconfig = |
b64eb60f MW |
224 | { tests, NROUT, NREG, sizeof(struct tvec_reg) }; |
225 | ||
226 | int main(int argc, char *argv[]) | |
c5e0e403 | 227 | { return (tvec_main(argc, argv, &testconfig, 0)); } |
b64eb60f MW |
228 | |
229 | /*----- That's all, folks -------------------------------------------------*/ |