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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Camellia Cipher Algorithm (x86_64)
4 *
5 * Copyright (C) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 */
7
8#include <linux/linkage.h>
9
10.file "camellia-x86_64-asm_64.S"
11.text
12
13.extern camellia_sp10011110;
14.extern camellia_sp22000222;
15.extern camellia_sp03303033;
16.extern camellia_sp00444404;
17.extern camellia_sp02220222;
18.extern camellia_sp30333033;
19.extern camellia_sp44044404;
20.extern camellia_sp11101110;
21
22#define sp10011110 camellia_sp10011110
23#define sp22000222 camellia_sp22000222
24#define sp03303033 camellia_sp03303033
25#define sp00444404 camellia_sp00444404
26#define sp02220222 camellia_sp02220222
27#define sp30333033 camellia_sp30333033
28#define sp44044404 camellia_sp44044404
29#define sp11101110 camellia_sp11101110
30
31#define CAMELLIA_TABLE_BYTE_LEN 272
32
33/* struct camellia_ctx: */
34#define key_table 0
35#define key_length CAMELLIA_TABLE_BYTE_LEN
36
37/* register macros */
38#define CTX %rdi
39#define RIO %rsi
40#define RIOd %esi
41
42#define RAB0 %rax
43#define RCD0 %rcx
44#define RAB1 %rbx
45#define RCD1 %rdx
46
47#define RAB0d %eax
48#define RCD0d %ecx
49#define RAB1d %ebx
50#define RCD1d %edx
51
52#define RAB0bl %al
53#define RCD0bl %cl
54#define RAB1bl %bl
55#define RCD1bl %dl
56
57#define RAB0bh %ah
58#define RCD0bh %ch
59#define RAB1bh %bh
60#define RCD1bh %dh
61
62#define RT0 %rsi
63#define RT1 %r12
64#define RT2 %r8
65
66#define RT0d %esi
67#define RT1d %r12d
68#define RT2d %r8d
69
70#define RT2bl %r8b
71
72#define RXOR %r9
73#define RR12 %r10
74#define RDST %r11
75
76#define RXORd %r9d
77#define RXORbl %r9b
78
79#define xor2ror16(T0, T1, tmp1, tmp2, ab, dst) \
80 leaq T0(%rip), tmp1; \
81 movzbl ab ## bl, tmp2 ## d; \
82 xorq (tmp1, tmp2, 8), dst; \
83 leaq T1(%rip), tmp2; \
84 movzbl ab ## bh, tmp1 ## d; \
85 rorq $16, ab; \
86 xorq (tmp2, tmp1, 8), dst;
87
88/**********************************************************************
89 1-way camellia
90 **********************************************************************/
91#define roundsm(ab, subkey, cd) \
92 movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
93 \
94 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
95 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
96 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
97 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
98 \
99 xorq RT2, cd ## 0;
100
101#define fls(l, r, kl, kr) \
102 movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
103 andl l ## 0d, RT0d; \
104 roll $1, RT0d; \
105 shlq $32, RT0; \
106 xorq RT0, l ## 0; \
107 movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
108 orq r ## 0, RT1; \
109 shrq $32, RT1; \
110 xorq RT1, r ## 0; \
111 \
112 movq (key_table + ((kl) * 2) * 4)(CTX), RT2; \
113 orq l ## 0, RT2; \
114 shrq $32, RT2; \
115 xorq RT2, l ## 0; \
116 movl (key_table + ((kr) * 2) * 4)(CTX), RT0d; \
117 andl r ## 0d, RT0d; \
118 roll $1, RT0d; \
119 shlq $32, RT0; \
120 xorq RT0, r ## 0;
121
122#define enc_rounds(i) \
123 roundsm(RAB, i + 2, RCD); \
124 roundsm(RCD, i + 3, RAB); \
125 roundsm(RAB, i + 4, RCD); \
126 roundsm(RCD, i + 5, RAB); \
127 roundsm(RAB, i + 6, RCD); \
128 roundsm(RCD, i + 7, RAB);
129
130#define enc_fls(i) \
131 fls(RAB, RCD, i + 0, i + 1);
132
133#define enc_inpack() \
134 movq (RIO), RAB0; \
135 bswapq RAB0; \
136 rolq $32, RAB0; \
137 movq 4*2(RIO), RCD0; \
138 bswapq RCD0; \
139 rorq $32, RCD0; \
140 xorq key_table(CTX), RAB0;
141
142#define enc_outunpack(op, max) \
143 xorq key_table(CTX, max, 8), RCD0; \
144 rorq $32, RCD0; \
145 bswapq RCD0; \
146 op ## q RCD0, (RIO); \
147 rolq $32, RAB0; \
148 bswapq RAB0; \
149 op ## q RAB0, 4*2(RIO);
150
151#define dec_rounds(i) \
152 roundsm(RAB, i + 7, RCD); \
153 roundsm(RCD, i + 6, RAB); \
154 roundsm(RAB, i + 5, RCD); \
155 roundsm(RCD, i + 4, RAB); \
156 roundsm(RAB, i + 3, RCD); \
157 roundsm(RCD, i + 2, RAB);
158
159#define dec_fls(i) \
160 fls(RAB, RCD, i + 1, i + 0);
161
162#define dec_inpack(max) \
163 movq (RIO), RAB0; \
164 bswapq RAB0; \
165 rolq $32, RAB0; \
166 movq 4*2(RIO), RCD0; \
167 bswapq RCD0; \
168 rorq $32, RCD0; \
169 xorq key_table(CTX, max, 8), RAB0;
170
171#define dec_outunpack() \
172 xorq key_table(CTX), RCD0; \
173 rorq $32, RCD0; \
174 bswapq RCD0; \
175 movq RCD0, (RIO); \
176 rolq $32, RAB0; \
177 bswapq RAB0; \
178 movq RAB0, 4*2(RIO);
179
180SYM_FUNC_START(__camellia_enc_blk)
181 /* input:
182 * %rdi: ctx, CTX
183 * %rsi: dst
184 * %rdx: src
185 * %rcx: bool xor
186 */
187 movq %r12, RR12;
188
189 movq %rcx, RXOR;
190 movq %rsi, RDST;
191 movq %rdx, RIO;
192
193 enc_inpack();
194
195 enc_rounds(0);
196 enc_fls(8);
197 enc_rounds(8);
198 enc_fls(16);
199 enc_rounds(16);
200 movl $24, RT1d; /* max */
201
202 cmpb $16, key_length(CTX);
203 je .L__enc_done;
204
205 enc_fls(24);
206 enc_rounds(24);
207 movl $32, RT1d; /* max */
208
209.L__enc_done:
210 testb RXORbl, RXORbl;
211 movq RDST, RIO;
212
213 jnz .L__enc_xor;
214
215 enc_outunpack(mov, RT1);
216
217 movq RR12, %r12;
218 RET;
219
220.L__enc_xor:
221 enc_outunpack(xor, RT1);
222
223 movq RR12, %r12;
224 RET;
225SYM_FUNC_END(__camellia_enc_blk)
226
227SYM_FUNC_START(camellia_dec_blk)
228 /* input:
229 * %rdi: ctx, CTX
230 * %rsi: dst
231 * %rdx: src
232 */
233 cmpl $16, key_length(CTX);
234 movl $32, RT2d;
235 movl $24, RXORd;
236 cmovel RXORd, RT2d; /* max */
237
238 movq %r12, RR12;
239 movq %rsi, RDST;
240 movq %rdx, RIO;
241
242 dec_inpack(RT2);
243
244 cmpb $24, RT2bl;
245 je .L__dec_rounds16;
246
247 dec_rounds(24);
248 dec_fls(24);
249
250.L__dec_rounds16:
251 dec_rounds(16);
252 dec_fls(16);
253 dec_rounds(8);
254 dec_fls(8);
255 dec_rounds(0);
256
257 movq RDST, RIO;
258
259 dec_outunpack();
260
261 movq RR12, %r12;
262 RET;
263SYM_FUNC_END(camellia_dec_blk)
264
265/**********************************************************************
266 2-way camellia
267 **********************************************************************/
268#define roundsm2(ab, subkey, cd) \
269 movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
270 xorq RT2, cd ## 1; \
271 \
272 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
273 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
274 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
275 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
276 \
277 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 1, cd ## 1); \
278 xorq RT2, cd ## 0; \
279 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 1, cd ## 1); \
280 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 1, cd ## 1); \
281 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 1, cd ## 1);
282
283#define fls2(l, r, kl, kr) \
284 movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
285 andl l ## 0d, RT0d; \
286 roll $1, RT0d; \
287 shlq $32, RT0; \
288 xorq RT0, l ## 0; \
289 movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
290 orq r ## 0, RT1; \
291 shrq $32, RT1; \
292 xorq RT1, r ## 0; \
293 \
294 movl (key_table + ((kl) * 2) * 4)(CTX), RT2d; \
295 andl l ## 1d, RT2d; \
296 roll $1, RT2d; \
297 shlq $32, RT2; \
298 xorq RT2, l ## 1; \
299 movq (key_table + ((kr) * 2) * 4)(CTX), RT0; \
300 orq r ## 1, RT0; \
301 shrq $32, RT0; \
302 xorq RT0, r ## 1; \
303 \
304 movq (key_table + ((kl) * 2) * 4)(CTX), RT1; \
305 orq l ## 0, RT1; \
306 shrq $32, RT1; \
307 xorq RT1, l ## 0; \
308 movl (key_table + ((kr) * 2) * 4)(CTX), RT2d; \
309 andl r ## 0d, RT2d; \
310 roll $1, RT2d; \
311 shlq $32, RT2; \
312 xorq RT2, r ## 0; \
313 \
314 movq (key_table + ((kl) * 2) * 4)(CTX), RT0; \
315 orq l ## 1, RT0; \
316 shrq $32, RT0; \
317 xorq RT0, l ## 1; \
318 movl (key_table + ((kr) * 2) * 4)(CTX), RT1d; \
319 andl r ## 1d, RT1d; \
320 roll $1, RT1d; \
321 shlq $32, RT1; \
322 xorq RT1, r ## 1;
323
324#define enc_rounds2(i) \
325 roundsm2(RAB, i + 2, RCD); \
326 roundsm2(RCD, i + 3, RAB); \
327 roundsm2(RAB, i + 4, RCD); \
328 roundsm2(RCD, i + 5, RAB); \
329 roundsm2(RAB, i + 6, RCD); \
330 roundsm2(RCD, i + 7, RAB);
331
332#define enc_fls2(i) \
333 fls2(RAB, RCD, i + 0, i + 1);
334
335#define enc_inpack2() \
336 movq (RIO), RAB0; \
337 bswapq RAB0; \
338 rorq $32, RAB0; \
339 movq 4*2(RIO), RCD0; \
340 bswapq RCD0; \
341 rolq $32, RCD0; \
342 xorq key_table(CTX), RAB0; \
343 \
344 movq 8*2(RIO), RAB1; \
345 bswapq RAB1; \
346 rorq $32, RAB1; \
347 movq 12*2(RIO), RCD1; \
348 bswapq RCD1; \
349 rolq $32, RCD1; \
350 xorq key_table(CTX), RAB1;
351
352#define enc_outunpack2(op, max) \
353 xorq key_table(CTX, max, 8), RCD0; \
354 rolq $32, RCD0; \
355 bswapq RCD0; \
356 op ## q RCD0, (RIO); \
357 rorq $32, RAB0; \
358 bswapq RAB0; \
359 op ## q RAB0, 4*2(RIO); \
360 \
361 xorq key_table(CTX, max, 8), RCD1; \
362 rolq $32, RCD1; \
363 bswapq RCD1; \
364 op ## q RCD1, 8*2(RIO); \
365 rorq $32, RAB1; \
366 bswapq RAB1; \
367 op ## q RAB1, 12*2(RIO);
368
369#define dec_rounds2(i) \
370 roundsm2(RAB, i + 7, RCD); \
371 roundsm2(RCD, i + 6, RAB); \
372 roundsm2(RAB, i + 5, RCD); \
373 roundsm2(RCD, i + 4, RAB); \
374 roundsm2(RAB, i + 3, RCD); \
375 roundsm2(RCD, i + 2, RAB);
376
377#define dec_fls2(i) \
378 fls2(RAB, RCD, i + 1, i + 0);
379
380#define dec_inpack2(max) \
381 movq (RIO), RAB0; \
382 bswapq RAB0; \
383 rorq $32, RAB0; \
384 movq 4*2(RIO), RCD0; \
385 bswapq RCD0; \
386 rolq $32, RCD0; \
387 xorq key_table(CTX, max, 8), RAB0; \
388 \
389 movq 8*2(RIO), RAB1; \
390 bswapq RAB1; \
391 rorq $32, RAB1; \
392 movq 12*2(RIO), RCD1; \
393 bswapq RCD1; \
394 rolq $32, RCD1; \
395 xorq key_table(CTX, max, 8), RAB1;
396
397#define dec_outunpack2() \
398 xorq key_table(CTX), RCD0; \
399 rolq $32, RCD0; \
400 bswapq RCD0; \
401 movq RCD0, (RIO); \
402 rorq $32, RAB0; \
403 bswapq RAB0; \
404 movq RAB0, 4*2(RIO); \
405 \
406 xorq key_table(CTX), RCD1; \
407 rolq $32, RCD1; \
408 bswapq RCD1; \
409 movq RCD1, 8*2(RIO); \
410 rorq $32, RAB1; \
411 bswapq RAB1; \
412 movq RAB1, 12*2(RIO);
413
414SYM_FUNC_START(__camellia_enc_blk_2way)
415 /* input:
416 * %rdi: ctx, CTX
417 * %rsi: dst
418 * %rdx: src
419 * %rcx: bool xor
420 */
421 pushq %rbx;
422
423 movq %r12, RR12;
424 movq %rcx, RXOR;
425 movq %rsi, RDST;
426 movq %rdx, RIO;
427
428 enc_inpack2();
429
430 enc_rounds2(0);
431 enc_fls2(8);
432 enc_rounds2(8);
433 enc_fls2(16);
434 enc_rounds2(16);
435 movl $24, RT2d; /* max */
436
437 cmpb $16, key_length(CTX);
438 je .L__enc2_done;
439
440 enc_fls2(24);
441 enc_rounds2(24);
442 movl $32, RT2d; /* max */
443
444.L__enc2_done:
445 test RXORbl, RXORbl;
446 movq RDST, RIO;
447 jnz .L__enc2_xor;
448
449 enc_outunpack2(mov, RT2);
450
451 movq RR12, %r12;
452 popq %rbx;
453 RET;
454
455.L__enc2_xor:
456 enc_outunpack2(xor, RT2);
457
458 movq RR12, %r12;
459 popq %rbx;
460 RET;
461SYM_FUNC_END(__camellia_enc_blk_2way)
462
463SYM_FUNC_START(camellia_dec_blk_2way)
464 /* input:
465 * %rdi: ctx, CTX
466 * %rsi: dst
467 * %rdx: src
468 */
469 cmpl $16, key_length(CTX);
470 movl $32, RT2d;
471 movl $24, RXORd;
472 cmovel RXORd, RT2d; /* max */
473
474 movq %rbx, RXOR;
475 movq %r12, RR12;
476 movq %rsi, RDST;
477 movq %rdx, RIO;
478
479 dec_inpack2(RT2);
480
481 cmpb $24, RT2bl;
482 je .L__dec2_rounds16;
483
484 dec_rounds2(24);
485 dec_fls2(24);
486
487.L__dec2_rounds16:
488 dec_rounds2(16);
489 dec_fls2(16);
490 dec_rounds2(8);
491 dec_fls2(8);
492 dec_rounds2(0);
493
494 movq RDST, RIO;
495
496 dec_outunpack2();
497
498 movq RR12, %r12;
499 movq RXOR, %rbx;
500 RET;
501SYM_FUNC_END(camellia_dec_blk_2way)
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Camellia Cipher Algorithm (x86_64)
4 *
5 * Copyright (C) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
6 */
7
8#include <linux/linkage.h>
9
10.file "camellia-x86_64-asm_64.S"
11.text
12
13.extern camellia_sp10011110;
14.extern camellia_sp22000222;
15.extern camellia_sp03303033;
16.extern camellia_sp00444404;
17.extern camellia_sp02220222;
18.extern camellia_sp30333033;
19.extern camellia_sp44044404;
20.extern camellia_sp11101110;
21
22#define sp10011110 camellia_sp10011110
23#define sp22000222 camellia_sp22000222
24#define sp03303033 camellia_sp03303033
25#define sp00444404 camellia_sp00444404
26#define sp02220222 camellia_sp02220222
27#define sp30333033 camellia_sp30333033
28#define sp44044404 camellia_sp44044404
29#define sp11101110 camellia_sp11101110
30
31#define CAMELLIA_TABLE_BYTE_LEN 272
32
33/* struct camellia_ctx: */
34#define key_table 0
35#define key_length CAMELLIA_TABLE_BYTE_LEN
36
37/* register macros */
38#define CTX %rdi
39#define RIO %rsi
40#define RIOd %esi
41
42#define RAB0 %rax
43#define RCD0 %rcx
44#define RAB1 %rbx
45#define RCD1 %rdx
46
47#define RAB0d %eax
48#define RCD0d %ecx
49#define RAB1d %ebx
50#define RCD1d %edx
51
52#define RAB0bl %al
53#define RCD0bl %cl
54#define RAB1bl %bl
55#define RCD1bl %dl
56
57#define RAB0bh %ah
58#define RCD0bh %ch
59#define RAB1bh %bh
60#define RCD1bh %dh
61
62#define RT0 %rsi
63#define RT1 %r12
64#define RT2 %r8
65
66#define RT0d %esi
67#define RT1d %r12d
68#define RT2d %r8d
69
70#define RT2bl %r8b
71
72#define RXOR %r9
73#define RR12 %r10
74#define RDST %r11
75
76#define RXORd %r9d
77#define RXORbl %r9b
78
79#define xor2ror16(T0, T1, tmp1, tmp2, ab, dst) \
80 movzbl ab ## bl, tmp2 ## d; \
81 movzbl ab ## bh, tmp1 ## d; \
82 rorq $16, ab; \
83 xorq T0(, tmp2, 8), dst; \
84 xorq T1(, tmp1, 8), dst;
85
86/**********************************************************************
87 1-way camellia
88 **********************************************************************/
89#define roundsm(ab, subkey, cd) \
90 movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
91 \
92 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
93 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
94 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
95 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
96 \
97 xorq RT2, cd ## 0;
98
99#define fls(l, r, kl, kr) \
100 movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
101 andl l ## 0d, RT0d; \
102 roll $1, RT0d; \
103 shlq $32, RT0; \
104 xorq RT0, l ## 0; \
105 movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
106 orq r ## 0, RT1; \
107 shrq $32, RT1; \
108 xorq RT1, r ## 0; \
109 \
110 movq (key_table + ((kl) * 2) * 4)(CTX), RT2; \
111 orq l ## 0, RT2; \
112 shrq $32, RT2; \
113 xorq RT2, l ## 0; \
114 movl (key_table + ((kr) * 2) * 4)(CTX), RT0d; \
115 andl r ## 0d, RT0d; \
116 roll $1, RT0d; \
117 shlq $32, RT0; \
118 xorq RT0, r ## 0;
119
120#define enc_rounds(i) \
121 roundsm(RAB, i + 2, RCD); \
122 roundsm(RCD, i + 3, RAB); \
123 roundsm(RAB, i + 4, RCD); \
124 roundsm(RCD, i + 5, RAB); \
125 roundsm(RAB, i + 6, RCD); \
126 roundsm(RCD, i + 7, RAB);
127
128#define enc_fls(i) \
129 fls(RAB, RCD, i + 0, i + 1);
130
131#define enc_inpack() \
132 movq (RIO), RAB0; \
133 bswapq RAB0; \
134 rolq $32, RAB0; \
135 movq 4*2(RIO), RCD0; \
136 bswapq RCD0; \
137 rorq $32, RCD0; \
138 xorq key_table(CTX), RAB0;
139
140#define enc_outunpack(op, max) \
141 xorq key_table(CTX, max, 8), RCD0; \
142 rorq $32, RCD0; \
143 bswapq RCD0; \
144 op ## q RCD0, (RIO); \
145 rolq $32, RAB0; \
146 bswapq RAB0; \
147 op ## q RAB0, 4*2(RIO);
148
149#define dec_rounds(i) \
150 roundsm(RAB, i + 7, RCD); \
151 roundsm(RCD, i + 6, RAB); \
152 roundsm(RAB, i + 5, RCD); \
153 roundsm(RCD, i + 4, RAB); \
154 roundsm(RAB, i + 3, RCD); \
155 roundsm(RCD, i + 2, RAB);
156
157#define dec_fls(i) \
158 fls(RAB, RCD, i + 1, i + 0);
159
160#define dec_inpack(max) \
161 movq (RIO), RAB0; \
162 bswapq RAB0; \
163 rolq $32, RAB0; \
164 movq 4*2(RIO), RCD0; \
165 bswapq RCD0; \
166 rorq $32, RCD0; \
167 xorq key_table(CTX, max, 8), RAB0;
168
169#define dec_outunpack() \
170 xorq key_table(CTX), RCD0; \
171 rorq $32, RCD0; \
172 bswapq RCD0; \
173 movq RCD0, (RIO); \
174 rolq $32, RAB0; \
175 bswapq RAB0; \
176 movq RAB0, 4*2(RIO);
177
178SYM_FUNC_START(__camellia_enc_blk)
179 /* input:
180 * %rdi: ctx, CTX
181 * %rsi: dst
182 * %rdx: src
183 * %rcx: bool xor
184 */
185 movq %r12, RR12;
186
187 movq %rcx, RXOR;
188 movq %rsi, RDST;
189 movq %rdx, RIO;
190
191 enc_inpack();
192
193 enc_rounds(0);
194 enc_fls(8);
195 enc_rounds(8);
196 enc_fls(16);
197 enc_rounds(16);
198 movl $24, RT1d; /* max */
199
200 cmpb $16, key_length(CTX);
201 je .L__enc_done;
202
203 enc_fls(24);
204 enc_rounds(24);
205 movl $32, RT1d; /* max */
206
207.L__enc_done:
208 testb RXORbl, RXORbl;
209 movq RDST, RIO;
210
211 jnz .L__enc_xor;
212
213 enc_outunpack(mov, RT1);
214
215 movq RR12, %r12;
216 ret;
217
218.L__enc_xor:
219 enc_outunpack(xor, RT1);
220
221 movq RR12, %r12;
222 ret;
223SYM_FUNC_END(__camellia_enc_blk)
224
225SYM_FUNC_START(camellia_dec_blk)
226 /* input:
227 * %rdi: ctx, CTX
228 * %rsi: dst
229 * %rdx: src
230 */
231 cmpl $16, key_length(CTX);
232 movl $32, RT2d;
233 movl $24, RXORd;
234 cmovel RXORd, RT2d; /* max */
235
236 movq %r12, RR12;
237 movq %rsi, RDST;
238 movq %rdx, RIO;
239
240 dec_inpack(RT2);
241
242 cmpb $24, RT2bl;
243 je .L__dec_rounds16;
244
245 dec_rounds(24);
246 dec_fls(24);
247
248.L__dec_rounds16:
249 dec_rounds(16);
250 dec_fls(16);
251 dec_rounds(8);
252 dec_fls(8);
253 dec_rounds(0);
254
255 movq RDST, RIO;
256
257 dec_outunpack();
258
259 movq RR12, %r12;
260 ret;
261SYM_FUNC_END(camellia_dec_blk)
262
263/**********************************************************************
264 2-way camellia
265 **********************************************************************/
266#define roundsm2(ab, subkey, cd) \
267 movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
268 xorq RT2, cd ## 1; \
269 \
270 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
271 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
272 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
273 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
274 \
275 xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 1, cd ## 1); \
276 xorq RT2, cd ## 0; \
277 xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 1, cd ## 1); \
278 xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 1, cd ## 1); \
279 xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 1, cd ## 1);
280
281#define fls2(l, r, kl, kr) \
282 movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
283 andl l ## 0d, RT0d; \
284 roll $1, RT0d; \
285 shlq $32, RT0; \
286 xorq RT0, l ## 0; \
287 movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
288 orq r ## 0, RT1; \
289 shrq $32, RT1; \
290 xorq RT1, r ## 0; \
291 \
292 movl (key_table + ((kl) * 2) * 4)(CTX), RT2d; \
293 andl l ## 1d, RT2d; \
294 roll $1, RT2d; \
295 shlq $32, RT2; \
296 xorq RT2, l ## 1; \
297 movq (key_table + ((kr) * 2) * 4)(CTX), RT0; \
298 orq r ## 1, RT0; \
299 shrq $32, RT0; \
300 xorq RT0, r ## 1; \
301 \
302 movq (key_table + ((kl) * 2) * 4)(CTX), RT1; \
303 orq l ## 0, RT1; \
304 shrq $32, RT1; \
305 xorq RT1, l ## 0; \
306 movl (key_table + ((kr) * 2) * 4)(CTX), RT2d; \
307 andl r ## 0d, RT2d; \
308 roll $1, RT2d; \
309 shlq $32, RT2; \
310 xorq RT2, r ## 0; \
311 \
312 movq (key_table + ((kl) * 2) * 4)(CTX), RT0; \
313 orq l ## 1, RT0; \
314 shrq $32, RT0; \
315 xorq RT0, l ## 1; \
316 movl (key_table + ((kr) * 2) * 4)(CTX), RT1d; \
317 andl r ## 1d, RT1d; \
318 roll $1, RT1d; \
319 shlq $32, RT1; \
320 xorq RT1, r ## 1;
321
322#define enc_rounds2(i) \
323 roundsm2(RAB, i + 2, RCD); \
324 roundsm2(RCD, i + 3, RAB); \
325 roundsm2(RAB, i + 4, RCD); \
326 roundsm2(RCD, i + 5, RAB); \
327 roundsm2(RAB, i + 6, RCD); \
328 roundsm2(RCD, i + 7, RAB);
329
330#define enc_fls2(i) \
331 fls2(RAB, RCD, i + 0, i + 1);
332
333#define enc_inpack2() \
334 movq (RIO), RAB0; \
335 bswapq RAB0; \
336 rorq $32, RAB0; \
337 movq 4*2(RIO), RCD0; \
338 bswapq RCD0; \
339 rolq $32, RCD0; \
340 xorq key_table(CTX), RAB0; \
341 \
342 movq 8*2(RIO), RAB1; \
343 bswapq RAB1; \
344 rorq $32, RAB1; \
345 movq 12*2(RIO), RCD1; \
346 bswapq RCD1; \
347 rolq $32, RCD1; \
348 xorq key_table(CTX), RAB1;
349
350#define enc_outunpack2(op, max) \
351 xorq key_table(CTX, max, 8), RCD0; \
352 rolq $32, RCD0; \
353 bswapq RCD0; \
354 op ## q RCD0, (RIO); \
355 rorq $32, RAB0; \
356 bswapq RAB0; \
357 op ## q RAB0, 4*2(RIO); \
358 \
359 xorq key_table(CTX, max, 8), RCD1; \
360 rolq $32, RCD1; \
361 bswapq RCD1; \
362 op ## q RCD1, 8*2(RIO); \
363 rorq $32, RAB1; \
364 bswapq RAB1; \
365 op ## q RAB1, 12*2(RIO);
366
367#define dec_rounds2(i) \
368 roundsm2(RAB, i + 7, RCD); \
369 roundsm2(RCD, i + 6, RAB); \
370 roundsm2(RAB, i + 5, RCD); \
371 roundsm2(RCD, i + 4, RAB); \
372 roundsm2(RAB, i + 3, RCD); \
373 roundsm2(RCD, i + 2, RAB);
374
375#define dec_fls2(i) \
376 fls2(RAB, RCD, i + 1, i + 0);
377
378#define dec_inpack2(max) \
379 movq (RIO), RAB0; \
380 bswapq RAB0; \
381 rorq $32, RAB0; \
382 movq 4*2(RIO), RCD0; \
383 bswapq RCD0; \
384 rolq $32, RCD0; \
385 xorq key_table(CTX, max, 8), RAB0; \
386 \
387 movq 8*2(RIO), RAB1; \
388 bswapq RAB1; \
389 rorq $32, RAB1; \
390 movq 12*2(RIO), RCD1; \
391 bswapq RCD1; \
392 rolq $32, RCD1; \
393 xorq key_table(CTX, max, 8), RAB1;
394
395#define dec_outunpack2() \
396 xorq key_table(CTX), RCD0; \
397 rolq $32, RCD0; \
398 bswapq RCD0; \
399 movq RCD0, (RIO); \
400 rorq $32, RAB0; \
401 bswapq RAB0; \
402 movq RAB0, 4*2(RIO); \
403 \
404 xorq key_table(CTX), RCD1; \
405 rolq $32, RCD1; \
406 bswapq RCD1; \
407 movq RCD1, 8*2(RIO); \
408 rorq $32, RAB1; \
409 bswapq RAB1; \
410 movq RAB1, 12*2(RIO);
411
412SYM_FUNC_START(__camellia_enc_blk_2way)
413 /* input:
414 * %rdi: ctx, CTX
415 * %rsi: dst
416 * %rdx: src
417 * %rcx: bool xor
418 */
419 pushq %rbx;
420
421 movq %r12, RR12;
422 movq %rcx, RXOR;
423 movq %rsi, RDST;
424 movq %rdx, RIO;
425
426 enc_inpack2();
427
428 enc_rounds2(0);
429 enc_fls2(8);
430 enc_rounds2(8);
431 enc_fls2(16);
432 enc_rounds2(16);
433 movl $24, RT2d; /* max */
434
435 cmpb $16, key_length(CTX);
436 je .L__enc2_done;
437
438 enc_fls2(24);
439 enc_rounds2(24);
440 movl $32, RT2d; /* max */
441
442.L__enc2_done:
443 test RXORbl, RXORbl;
444 movq RDST, RIO;
445 jnz .L__enc2_xor;
446
447 enc_outunpack2(mov, RT2);
448
449 movq RR12, %r12;
450 popq %rbx;
451 ret;
452
453.L__enc2_xor:
454 enc_outunpack2(xor, RT2);
455
456 movq RR12, %r12;
457 popq %rbx;
458 ret;
459SYM_FUNC_END(__camellia_enc_blk_2way)
460
461SYM_FUNC_START(camellia_dec_blk_2way)
462 /* input:
463 * %rdi: ctx, CTX
464 * %rsi: dst
465 * %rdx: src
466 */
467 cmpl $16, key_length(CTX);
468 movl $32, RT2d;
469 movl $24, RXORd;
470 cmovel RXORd, RT2d; /* max */
471
472 movq %rbx, RXOR;
473 movq %r12, RR12;
474 movq %rsi, RDST;
475 movq %rdx, RIO;
476
477 dec_inpack2(RT2);
478
479 cmpb $24, RT2bl;
480 je .L__dec2_rounds16;
481
482 dec_rounds2(24);
483 dec_fls2(24);
484
485.L__dec2_rounds16:
486 dec_rounds2(16);
487 dec_fls2(16);
488 dec_rounds2(8);
489 dec_fls2(8);
490 dec_rounds2(0);
491
492 movq RDST, RIO;
493
494 dec_outunpack2();
495
496 movq RR12, %r12;
497 movq RXOR, %rbx;
498 ret;
499SYM_FUNC_END(camellia_dec_blk_2way)