Commit | Line | Data |
---|---|---|
ff3d9c3c MA |
1 | /* |
2 | * | |
3 | * sep_crypto.c - Crypto interface structures | |
4 | * | |
5 | * Copyright(c) 2009-2011 Intel Corporation. All rights reserved. | |
6 | * Contributions(c) 2009-2010 Discretix. All rights reserved. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the Free | |
10 | * Software Foundation; version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., 59 | |
19 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
20 | * | |
21 | * CONTACTS: | |
22 | * | |
23 | * Mark Allyn mark.a.allyn@intel.com | |
24 | * Jayant Mangalampalli jayant.mangalampalli@intel.com | |
25 | * | |
26 | * CHANGES: | |
27 | * | |
28 | * 2009.06.26 Initial publish | |
29 | * 2010.09.14 Upgrade to Medfield | |
30 | * 2011.02.22 Enable Kernel Crypto | |
31 | * | |
32 | */ | |
33 | ||
34 | /* #define DEBUG */ | |
35 | #include <linux/init.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/miscdevice.h> | |
38 | #include <linux/fs.h> | |
39 | #include <linux/cdev.h> | |
40 | #include <linux/kdev_t.h> | |
41 | #include <linux/mutex.h> | |
42 | #include <linux/sched.h> | |
43 | #include <linux/mm.h> | |
44 | #include <linux/poll.h> | |
45 | #include <linux/wait.h> | |
46 | #include <linux/pci.h> | |
47 | #include <linux/pci.h> | |
48 | #include <linux/pm_runtime.h> | |
49 | #include <linux/err.h> | |
50 | #include <linux/device.h> | |
51 | #include <linux/errno.h> | |
52 | #include <linux/interrupt.h> | |
53 | #include <linux/kernel.h> | |
54 | #include <linux/clk.h> | |
55 | #include <linux/irq.h> | |
56 | #include <linux/io.h> | |
57 | #include <linux/platform_device.h> | |
58 | #include <linux/list.h> | |
59 | #include <linux/dma-mapping.h> | |
60 | #include <linux/delay.h> | |
61 | #include <linux/jiffies.h> | |
62 | #include <linux/workqueue.h> | |
63 | #include <linux/crypto.h> | |
64 | #include <crypto/internal/hash.h> | |
65 | #include <crypto/scatterwalk.h> | |
66 | #include <crypto/sha.h> | |
67 | #include <crypto/md5.h> | |
68 | #include <crypto/aes.h> | |
69 | #include <crypto/des.h> | |
70 | #include <crypto/hash.h> | |
71 | #include "sep_driver_hw_defs.h" | |
72 | #include "sep_driver_config.h" | |
73 | #include "sep_driver_api.h" | |
74 | #include "sep_dev.h" | |
75 | #include "sep_crypto.h" | |
76 | ||
ebb3bf50 AC |
77 | #if defined(CONFIG_CRYPTO) || defined(CONFIG_CRYPTO_MODULE) |
78 | ||
ff3d9c3c MA |
79 | /* Globals for queuing */ |
80 | static spinlock_t queue_lock; | |
81 | static struct crypto_queue sep_queue; | |
82 | ||
83 | /* Declare of dequeuer */ | |
84 | static void sep_dequeuer(void *data); | |
85 | ||
86 | /* TESTING */ | |
87 | /** | |
88 | * crypto_sep_dump_message - dump the message that is pending | |
89 | * @sep: SEP device | |
90 | * This will only print dump if DEBUG is set; it does | |
91 | * follow kernel debug print enabling | |
92 | */ | |
9196dc11 | 93 | static void crypto_sep_dump_message(struct sep_device *sep, void *msg) |
ff3d9c3c MA |
94 | { |
95 | #if 0 | |
96 | u32 *p; | |
97 | u32 *i; | |
98 | int count; | |
99 | ||
9196dc11 MA |
100 | p = sep->shared_addr; |
101 | i = (u32 *)msg; | |
102 | for (count = 0; count < 10 * 4; count += 4) | |
103 | dev_dbg(&sep->pdev->dev, | |
ff3d9c3c MA |
104 | "[PID%d] Word %d of the message is %x (local)%x\n", |
105 | current->pid, count/4, *p++, *i++); | |
106 | #endif | |
107 | } | |
108 | ||
109 | /** | |
110 | * sep_do_callback | |
111 | * @work: pointer to work_struct | |
112 | * This is what is called by the queue; it is generic so that it | |
113 | * can be used by any type of operation as each different callback | |
114 | * function can use the data parameter in its own way | |
115 | */ | |
116 | static void sep_do_callback(struct work_struct *work) | |
117 | { | |
118 | struct sep_work_struct *sep_work = container_of(work, | |
119 | struct sep_work_struct, work); | |
120 | if (sep_work != NULL) { | |
121 | (sep_work->callback)(sep_work->data); | |
122 | kfree(sep_work); | |
123 | } else { | |
124 | pr_debug("sep crypto: do callback - NULL container\n"); | |
125 | } | |
126 | } | |
127 | ||
128 | /** | |
129 | * sep_submit_work | |
130 | * @work_queue: pointer to struct_workqueue | |
131 | * @funct: pointer to function to execute | |
132 | * @data: pointer to data; function will know | |
133 | * how to use it | |
134 | * This is a generic API to submit something to | |
135 | * the queue. The callback function will depend | |
136 | * on what operation is to be done | |
137 | */ | |
138 | static int sep_submit_work(struct workqueue_struct *work_queue, | |
139 | void(*funct)(void *), | |
140 | void *data) | |
141 | { | |
142 | struct sep_work_struct *sep_work; | |
143 | int result; | |
144 | ||
145 | sep_work = kmalloc(sizeof(struct sep_work_struct), GFP_ATOMIC); | |
146 | ||
147 | if (sep_work == NULL) { | |
148 | pr_debug("sep crypto: cant allocate work structure\n"); | |
149 | return -ENOMEM; | |
150 | } | |
151 | ||
152 | sep_work->callback = funct; | |
153 | sep_work->data = data; | |
154 | INIT_WORK(&sep_work->work, sep_do_callback); | |
155 | result = queue_work(work_queue, &sep_work->work); | |
156 | if (!result) { | |
157 | pr_debug("sep_crypto: queue_work failed\n"); | |
158 | return -EINVAL; | |
159 | } | |
160 | return 0; | |
161 | } | |
162 | ||
163 | /** | |
164 | * sep_alloc_sg_buf - | |
165 | * @sep: pointer to struct sep_device | |
166 | * @size: total size of area | |
167 | * @block_size: minimum size of chunks | |
168 | * each page is minimum or modulo this size | |
169 | * @returns: pointer to struct scatterlist for new | |
170 | * buffer | |
171 | **/ | |
172 | static struct scatterlist *sep_alloc_sg_buf( | |
173 | struct sep_device *sep, | |
174 | size_t size, | |
175 | size_t block_size) | |
176 | { | |
177 | u32 nbr_pages; | |
178 | u32 ct1; | |
179 | void *buf; | |
180 | size_t current_size; | |
181 | size_t real_page_size; | |
182 | ||
183 | struct scatterlist *sg, *sg_temp; | |
184 | ||
185 | if (size == 0) | |
186 | return NULL; | |
187 | ||
188 | dev_dbg(&sep->pdev->dev, "sep alloc sg buf\n"); | |
189 | ||
190 | current_size = 0; | |
191 | nbr_pages = 0; | |
192 | real_page_size = PAGE_SIZE - (PAGE_SIZE % block_size); | |
193 | /** | |
194 | * The size of each page must be modulo of the operation | |
195 | * block size; increment by the modified page size until | |
196 | * the total size is reached, then you have the number of | |
197 | * pages | |
198 | */ | |
199 | while (current_size < size) { | |
200 | current_size += real_page_size; | |
201 | nbr_pages += 1; | |
202 | } | |
203 | ||
204 | sg = kmalloc((sizeof(struct scatterlist) * nbr_pages), GFP_ATOMIC); | |
205 | if (!sg) { | |
206 | dev_warn(&sep->pdev->dev, "Cannot allocate page for new sg\n"); | |
207 | return NULL; | |
208 | } | |
209 | ||
210 | sg_init_table(sg, nbr_pages); | |
211 | ||
212 | current_size = 0; | |
213 | sg_temp = sg; | |
214 | for (ct1 = 0; ct1 < nbr_pages; ct1 += 1) { | |
215 | buf = (void *)get_zeroed_page(GFP_ATOMIC); | |
216 | if (!buf) { | |
217 | dev_warn(&sep->pdev->dev, | |
218 | "Cannot allocate page for new buffer\n"); | |
219 | kfree(sg); | |
220 | return NULL; | |
221 | } | |
222 | ||
223 | sg_set_buf(sg_temp, buf, real_page_size); | |
224 | if ((size - current_size) > real_page_size) { | |
225 | sg_temp->length = real_page_size; | |
226 | current_size += real_page_size; | |
227 | } else { | |
228 | sg_temp->length = (size - current_size); | |
229 | current_size = size; | |
230 | } | |
231 | sg_temp = sg_next(sg); | |
232 | } | |
233 | return sg; | |
234 | } | |
235 | ||
236 | /** | |
237 | * sep_free_sg_buf - | |
238 | * @sg: pointer to struct scatterlist; points to area to free | |
239 | */ | |
240 | static void sep_free_sg_buf(struct scatterlist *sg) | |
241 | { | |
242 | struct scatterlist *sg_temp = sg; | |
243 | while (sg_temp) { | |
244 | free_page((unsigned long)sg_virt(sg_temp)); | |
245 | sg_temp = sg_next(sg_temp); | |
246 | } | |
247 | kfree(sg); | |
248 | } | |
249 | ||
250 | /** | |
251 | * sep_copy_sg - | |
252 | * @sep: pointer to struct sep_device | |
253 | * @sg_src: pointer to struct scatterlist for source | |
254 | * @sg_dst: pointer to struct scatterlist for destination | |
255 | * @size: size (in bytes) of data to copy | |
256 | * | |
257 | * Copy data from one scatterlist to another; both must | |
258 | * be the same size | |
259 | */ | |
260 | static void sep_copy_sg( | |
261 | struct sep_device *sep, | |
262 | struct scatterlist *sg_src, | |
263 | struct scatterlist *sg_dst, | |
264 | size_t size) | |
265 | { | |
266 | u32 seg_size; | |
267 | u32 in_offset, out_offset; | |
268 | ||
269 | u32 count = 0; | |
270 | struct scatterlist *sg_src_tmp = sg_src; | |
271 | struct scatterlist *sg_dst_tmp = sg_dst; | |
272 | in_offset = 0; | |
273 | out_offset = 0; | |
274 | ||
275 | dev_dbg(&sep->pdev->dev, "sep copy sg\n"); | |
276 | ||
277 | if ((sg_src == NULL) || (sg_dst == NULL) || (size == 0)) | |
278 | return; | |
279 | ||
280 | dev_dbg(&sep->pdev->dev, "sep copy sg not null\n"); | |
281 | ||
282 | while (count < size) { | |
283 | if ((sg_src_tmp->length - in_offset) > | |
284 | (sg_dst_tmp->length - out_offset)) | |
285 | seg_size = sg_dst_tmp->length - out_offset; | |
286 | else | |
287 | seg_size = sg_src_tmp->length - in_offset; | |
288 | ||
289 | if (seg_size > (size - count)) | |
290 | seg_size = (size = count); | |
291 | ||
292 | memcpy(sg_virt(sg_dst_tmp) + out_offset, | |
293 | sg_virt(sg_src_tmp) + in_offset, | |
294 | seg_size); | |
295 | ||
296 | in_offset += seg_size; | |
297 | out_offset += seg_size; | |
298 | count += seg_size; | |
299 | ||
300 | if (in_offset >= sg_src_tmp->length) { | |
301 | sg_src_tmp = sg_next(sg_src_tmp); | |
302 | in_offset = 0; | |
303 | } | |
304 | ||
305 | if (out_offset >= sg_dst_tmp->length) { | |
306 | sg_dst_tmp = sg_next(sg_dst_tmp); | |
307 | out_offset = 0; | |
308 | } | |
309 | } | |
310 | } | |
311 | ||
312 | /** | |
313 | * sep_oddball_pages - | |
314 | * @sep: pointer to struct sep_device | |
315 | * @sg: pointer to struct scatterlist - buffer to check | |
316 | * @size: total data size | |
317 | * @blocksize: minimum block size; must be multiples of this size | |
318 | * @to_copy: 1 means do copy, 0 means do not copy | |
319 | * @new_sg: pointer to location to put pointer to new sg area | |
320 | * @returns: 1 if new scatterlist is needed; 0 if not needed; | |
321 | * error value if operation failed | |
322 | * | |
323 | * The SEP device requires all pages to be multiples of the | |
324 | * minimum block size appropriate for the operation | |
325 | * This function check all pages; if any are oddball sizes | |
326 | * (not multiple of block sizes), it creates a new scatterlist. | |
327 | * If the to_copy parameter is set to 1, then a scatter list | |
328 | * copy is performed. The pointer to the new scatterlist is | |
329 | * put into the address supplied by the new_sg parameter; if | |
330 | * no new scatterlist is needed, then a NULL is put into | |
331 | * the location at new_sg. | |
332 | * | |
333 | */ | |
334 | static int sep_oddball_pages( | |
335 | struct sep_device *sep, | |
336 | struct scatterlist *sg, | |
337 | size_t data_size, | |
338 | u32 block_size, | |
339 | struct scatterlist **new_sg, | |
340 | u32 do_copy) | |
341 | { | |
342 | struct scatterlist *sg_temp; | |
343 | u32 flag; | |
344 | u32 nbr_pages, page_count; | |
345 | ||
346 | dev_dbg(&sep->pdev->dev, "sep oddball\n"); | |
347 | if ((sg == NULL) || (data_size == 0) || (data_size < block_size)) | |
348 | return 0; | |
349 | ||
350 | dev_dbg(&sep->pdev->dev, "sep oddball not null\n"); | |
351 | flag = 0; | |
352 | nbr_pages = 0; | |
353 | page_count = 0; | |
354 | sg_temp = sg; | |
355 | ||
356 | while (sg_temp) { | |
357 | nbr_pages += 1; | |
358 | sg_temp = sg_next(sg_temp); | |
359 | } | |
360 | ||
361 | sg_temp = sg; | |
362 | while ((sg_temp) && (flag == 0)) { | |
363 | page_count += 1; | |
364 | if (sg_temp->length % block_size) | |
365 | flag = 1; | |
366 | else | |
367 | sg_temp = sg_next(sg_temp); | |
368 | } | |
369 | ||
370 | /* Do not process if last (or only) page is oddball */ | |
371 | if (nbr_pages == page_count) | |
372 | flag = 0; | |
373 | ||
374 | if (flag) { | |
375 | dev_dbg(&sep->pdev->dev, "sep oddball processing\n"); | |
376 | *new_sg = sep_alloc_sg_buf(sep, data_size, block_size); | |
377 | if (*new_sg == NULL) { | |
378 | dev_warn(&sep->pdev->dev, "cannot allocate new sg\n"); | |
379 | return -ENOMEM; | |
380 | } | |
381 | ||
382 | if (do_copy) | |
383 | sep_copy_sg(sep, sg, *new_sg, data_size); | |
384 | ||
385 | return 1; | |
386 | } else { | |
387 | return 0; | |
388 | } | |
389 | } | |
390 | ||
391 | /** | |
392 | * sep_copy_offset_sg - | |
393 | * @sep: pointer to struct sep_device; | |
394 | * @sg: pointer to struct scatterlist | |
395 | * @offset: offset into scatterlist memory | |
396 | * @dst: place to put data | |
397 | * @len: length of data | |
398 | * @returns: number of bytes copies | |
399 | * | |
400 | * This copies data from scatterlist buffer | |
401 | * offset from beginning - it is needed for | |
402 | * handling tail data in hash | |
403 | */ | |
404 | static size_t sep_copy_offset_sg( | |
405 | struct sep_device *sep, | |
406 | struct scatterlist *sg, | |
407 | u32 offset, | |
408 | void *dst, | |
409 | u32 len) | |
410 | { | |
411 | size_t page_start; | |
412 | size_t page_end; | |
413 | size_t offset_within_page; | |
414 | size_t length_within_page; | |
415 | size_t length_remaining; | |
416 | size_t current_offset; | |
417 | ||
418 | /* Find which page is beginning of segment */ | |
419 | page_start = 0; | |
420 | page_end = sg->length; | |
421 | while ((sg) && (offset > page_end)) { | |
422 | page_start += sg->length; | |
423 | sg = sg_next(sg); | |
424 | if (sg) | |
425 | page_end += sg->length; | |
426 | } | |
427 | ||
428 | if (sg == NULL) | |
429 | return -ENOMEM; | |
430 | ||
431 | offset_within_page = offset - page_start; | |
432 | if ((sg->length - offset_within_page) >= len) { | |
433 | /* All within this page */ | |
434 | memcpy(dst, sg_virt(sg) + offset_within_page, len); | |
435 | return len; | |
436 | } else { | |
437 | /* Scattered multiple pages */ | |
438 | current_offset = 0; | |
439 | length_remaining = len; | |
440 | while ((sg) && (current_offset < len)) { | |
441 | length_within_page = sg->length - offset_within_page; | |
442 | if (length_within_page >= length_remaining) { | |
443 | memcpy(dst+current_offset, | |
444 | sg_virt(sg) + offset_within_page, | |
445 | length_remaining); | |
446 | length_remaining = 0; | |
447 | current_offset = len; | |
448 | } else { | |
449 | memcpy(dst+current_offset, | |
450 | sg_virt(sg) + offset_within_page, | |
451 | length_within_page); | |
452 | length_remaining -= length_within_page; | |
453 | current_offset += length_within_page; | |
454 | offset_within_page = 0; | |
455 | sg = sg_next(sg); | |
456 | } | |
457 | } | |
458 | ||
459 | if (sg == NULL) | |
460 | return -ENOMEM; | |
461 | } | |
462 | return len; | |
463 | } | |
464 | ||
465 | /** | |
466 | * partial_overlap - | |
467 | * @src_ptr: source pointer | |
468 | * @dst_ptr: destination pointer | |
469 | * @nbytes: number of bytes | |
470 | * @returns: 0 for success; -1 for failure | |
471 | * We cannot have any partial overlap. Total overlap | |
472 | * where src is the same as dst is okay | |
473 | */ | |
474 | static int partial_overlap(void *src_ptr, void *dst_ptr, u32 nbytes) | |
475 | { | |
476 | /* Check for partial overlap */ | |
477 | if (src_ptr != dst_ptr) { | |
478 | if (src_ptr < dst_ptr) { | |
479 | if ((src_ptr + nbytes) > dst_ptr) | |
480 | return -EINVAL; | |
481 | } else { | |
482 | if ((dst_ptr + nbytes) > src_ptr) | |
483 | return -EINVAL; | |
484 | } | |
485 | } | |
486 | ||
487 | return 0; | |
488 | } | |
489 | ||
490 | /* Debug - prints only if DEBUG is defined; follows kernel debug model */ | |
491 | static void sep_dump(struct sep_device *sep, char *stg, void *start, int len) | |
492 | { | |
493 | #if 0 | |
494 | int ct1; | |
495 | u8 *ptt; | |
496 | ||
497 | dev_dbg(&sep->pdev->dev, | |
498 | "Dump of %s starting at %08lx for %08x bytes\n", | |
499 | stg, (unsigned long)start, len); | |
500 | for (ct1 = 0; ct1 < len; ct1 += 1) { | |
501 | ptt = (u8 *)(start + ct1); | |
502 | dev_dbg(&sep->pdev->dev, "%02x ", *ptt); | |
503 | if (ct1 % 16 == 15) | |
504 | dev_dbg(&sep->pdev->dev, "\n"); | |
505 | } | |
506 | dev_dbg(&sep->pdev->dev, "\n"); | |
507 | #endif | |
508 | } | |
509 | ||
510 | /* Debug - prints only if DEBUG is defined; follows kernel debug model */ | |
511 | static void sep_dump_sg(struct sep_device *sep, char *stg, | |
512 | struct scatterlist *sg) | |
513 | { | |
514 | #if 0 | |
515 | int ct1, ct2; | |
516 | u8 *ptt; | |
517 | ||
518 | dev_dbg(&sep->pdev->dev, "Dump of scatterlist %s\n", stg); | |
519 | ||
520 | ct1 = 0; | |
521 | while (sg) { | |
522 | dev_dbg(&sep->pdev->dev, "page %x\n size %x", ct1, | |
523 | sg->length); | |
524 | dev_dbg(&sep->pdev->dev, "phys addr is %lx", | |
525 | (unsigned long)sg_phys(sg)); | |
526 | ptt = sg_virt(sg); | |
527 | for (ct2 = 0; ct2 < sg->length; ct2 += 1) { | |
528 | dev_dbg(&sep->pdev->dev, "byte %x is %02x\n", | |
529 | ct2, (unsigned char)*(ptt + ct2)); | |
530 | } | |
531 | ||
532 | ct1 += 1; | |
533 | sg = sg_next(sg); | |
534 | } | |
535 | dev_dbg(&sep->pdev->dev, "\n"); | |
536 | #endif | |
537 | } | |
538 | ||
9196dc11 MA |
539 | /* Debug - prints only if DEBUG is defined */ |
540 | static void sep_dump_ivs(struct ablkcipher_request *req, char *reason) | |
541 | ||
542 | { | |
543 | unsigned char *cptr; | |
544 | struct sep_aes_internal_context *aes_internal; | |
545 | struct sep_des_internal_context *des_internal; | |
546 | int ct1; | |
547 | ||
548 | struct this_task_ctx *ta_ctx; | |
549 | struct crypto_ablkcipher *tfm; | |
550 | struct sep_system_ctx *sctx; | |
551 | ||
552 | ta_ctx = ablkcipher_request_ctx(req); | |
553 | tfm = crypto_ablkcipher_reqtfm(req); | |
554 | sctx = crypto_ablkcipher_ctx(tfm); | |
555 | ||
556 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "IV DUMP - %s\n", reason); | |
557 | if ((ta_ctx->current_request == DES_CBC) && | |
558 | (ta_ctx->des_opmode == SEP_DES_CBC)) { | |
559 | ||
560 | des_internal = (struct sep_des_internal_context *) | |
561 | sctx->des_private_ctx.ctx_buf; | |
562 | /* print vendor */ | |
563 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
564 | "sep - vendor iv for DES\n"); | |
565 | cptr = (unsigned char *)des_internal->iv_context; | |
566 | for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1) | |
567 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
568 | "%02x\n", *(cptr + ct1)); | |
569 | ||
570 | /* print walk */ | |
571 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
572 | "sep - walk from kernel crypto iv for DES\n"); | |
573 | cptr = (unsigned char *)ta_ctx->walk.iv; | |
574 | for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1) | |
575 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
576 | "%02x\n", *(cptr + ct1)); | |
577 | } else if ((ta_ctx->current_request == AES_CBC) && | |
578 | (ta_ctx->aes_opmode == SEP_AES_CBC)) { | |
579 | ||
580 | aes_internal = (struct sep_aes_internal_context *) | |
581 | sctx->aes_private_ctx.cbuff; | |
582 | /* print vendor */ | |
583 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
584 | "sep - vendor iv for AES\n"); | |
585 | cptr = (unsigned char *)aes_internal->aes_ctx_iv; | |
586 | for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1) | |
587 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
588 | "%02x\n", *(cptr + ct1)); | |
589 | ||
590 | /* print walk */ | |
591 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
592 | "sep - walk from kernel crypto iv for AES\n"); | |
593 | cptr = (unsigned char *)ta_ctx->walk.iv; | |
594 | for (ct1 = 0; ct1 < crypto_ablkcipher_ivsize(tfm); ct1 += 1) | |
595 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
596 | "%02x\n", *(cptr + ct1)); | |
597 | } | |
598 | } | |
599 | ||
ff3d9c3c MA |
600 | /** |
601 | * RFC2451: Weak key check | |
602 | * Returns: 1 (weak), 0 (not weak) | |
603 | */ | |
604 | static int sep_weak_key(const u8 *key, unsigned int keylen) | |
605 | { | |
606 | static const u8 parity[] = { | |
607 | 8, 1, 0, 8, 0, 8, 8, 0, 0, 8, 8, 0, 8, 0, 2, 8, | |
608 | 0, 8, 8, 0, 8, 0, 0, 8, 8, | |
609 | 0, 0, 8, 0, 8, 8, 3, | |
610 | 0, 8, 8, 0, 8, 0, 0, 8, 8, 0, 0, 8, 0, 8, 8, 0, | |
611 | 8, 0, 0, 8, 0, 8, 8, 0, 0, | |
612 | 8, 8, 0, 8, 0, 0, 8, | |
613 | 0, 8, 8, 0, 8, 0, 0, 8, 8, 0, 0, 8, 0, 8, 8, 0, | |
614 | 8, 0, 0, 8, 0, 8, 8, 0, 0, | |
615 | 8, 8, 0, 8, 0, 0, 8, | |
616 | 8, 0, 0, 8, 0, 8, 8, 0, 0, 8, 8, 0, 8, 0, 0, 8, | |
617 | 0, 8, 8, 0, 8, 0, 0, 8, 8, | |
618 | 0, 0, 8, 0, 8, 8, 0, | |
619 | 0, 8, 8, 0, 8, 0, 0, 8, 8, 0, 0, 8, 0, 8, 8, 0, | |
620 | 8, 0, 0, 8, 0, 8, 8, 0, 0, | |
621 | 8, 8, 0, 8, 0, 0, 8, | |
622 | 8, 0, 0, 8, 0, 8, 8, 0, 0, 8, 8, 0, 8, 0, 0, 8, | |
623 | 0, 8, 8, 0, 8, 0, 0, 8, 8, | |
624 | 0, 0, 8, 0, 8, 8, 0, | |
625 | 8, 0, 0, 8, 0, 8, 8, 0, 0, 8, 8, 0, 8, 0, 0, 8, | |
626 | 0, 8, 8, 0, 8, 0, 0, 8, 8, | |
627 | 0, 0, 8, 0, 8, 8, 0, | |
628 | 4, 8, 8, 0, 8, 0, 0, 8, 8, 0, 0, 8, 0, 8, 8, 0, | |
629 | 8, 5, 0, 8, 0, 8, 8, 0, 0, | |
630 | 8, 8, 0, 8, 0, 6, 8, | |
631 | }; | |
632 | ||
633 | u32 n, w; | |
634 | ||
635 | n = parity[key[0]]; n <<= 4; | |
636 | n |= parity[key[1]]; n <<= 4; | |
637 | n |= parity[key[2]]; n <<= 4; | |
638 | n |= parity[key[3]]; n <<= 4; | |
639 | n |= parity[key[4]]; n <<= 4; | |
640 | n |= parity[key[5]]; n <<= 4; | |
641 | n |= parity[key[6]]; n <<= 4; | |
642 | n |= parity[key[7]]; | |
643 | w = 0x88888888L; | |
644 | ||
645 | /* 1 in 10^10 keys passes this test */ | |
646 | if (!((n - (w >> 3)) & w)) { | |
647 | if (n < 0x41415151) { | |
648 | if (n < 0x31312121) { | |
649 | if (n < 0x14141515) { | |
650 | /* 01 01 01 01 01 01 01 01 */ | |
651 | if (n == 0x11111111) | |
652 | goto weak; | |
653 | /* 01 1F 01 1F 01 0E 01 0E */ | |
654 | if (n == 0x13131212) | |
655 | goto weak; | |
656 | } else { | |
657 | /* 01 E0 01 E0 01 F1 01 F1 */ | |
658 | if (n == 0x14141515) | |
659 | goto weak; | |
660 | /* 01 FE 01 FE 01 FE 01 FE */ | |
661 | if (n == 0x16161616) | |
662 | goto weak; | |
663 | } | |
664 | } else { | |
665 | if (n < 0x34342525) { | |
666 | /* 1F 01 1F 01 0E 01 0E 01 */ | |
667 | if (n == 0x31312121) | |
668 | goto weak; | |
669 | /* 1F 1F 1F 1F 0E 0E 0E 0E (?) */ | |
670 | if (n == 0x33332222) | |
671 | goto weak; | |
672 | } else { | |
673 | /* 1F E0 1F E0 0E F1 0E F1 */ | |
674 | if (n == 0x34342525) | |
675 | goto weak; | |
676 | /* 1F FE 1F FE 0E FE 0E FE */ | |
677 | if (n == 0x36362626) | |
678 | goto weak; | |
679 | } | |
680 | } | |
681 | } else { | |
682 | if (n < 0x61616161) { | |
683 | if (n < 0x44445555) { | |
684 | /* E0 01 E0 01 F1 01 F1 01 */ | |
685 | if (n == 0x41415151) | |
686 | goto weak; | |
687 | /* E0 1F E0 1F F1 0E F1 0E */ | |
688 | if (n == 0x43435252) | |
689 | goto weak; | |
690 | } else { | |
691 | /* E0 E0 E0 E0 F1 F1 F1 F1 (?) */ | |
692 | if (n == 0x44445555) | |
693 | goto weak; | |
694 | /* E0 FE E0 FE F1 FE F1 FE */ | |
695 | if (n == 0x46465656) | |
696 | goto weak; | |
697 | } | |
698 | } else { | |
699 | if (n < 0x64646565) { | |
700 | /* FE 01 FE 01 FE 01 FE 01 */ | |
701 | if (n == 0x61616161) | |
702 | goto weak; | |
703 | /* FE 1F FE 1F FE 0E FE 0E */ | |
704 | if (n == 0x63636262) | |
705 | goto weak; | |
706 | } else { | |
707 | /* FE E0 FE E0 FE F1 FE F1 */ | |
708 | if (n == 0x64646565) | |
709 | goto weak; | |
710 | /* FE FE FE FE FE FE FE FE */ | |
711 | if (n == 0x66666666) | |
712 | goto weak; | |
713 | } | |
714 | } | |
715 | } | |
716 | } | |
717 | return 0; | |
718 | weak: | |
719 | return 1; | |
720 | } | |
721 | /** | |
722 | * sep_sg_nents | |
723 | */ | |
724 | static u32 sep_sg_nents(struct scatterlist *sg) | |
725 | { | |
726 | u32 ct1 = 0; | |
727 | while (sg) { | |
728 | ct1 += 1; | |
729 | sg = sg_next(sg); | |
730 | } | |
731 | ||
732 | return ct1; | |
733 | } | |
734 | ||
735 | /** | |
736 | * sep_start_msg - | |
9196dc11 | 737 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
738 | * @returns: offset to place for the next word in the message |
739 | * Set up pointer in message pool for new message | |
740 | */ | |
9196dc11 | 741 | static u32 sep_start_msg(struct this_task_ctx *ta_ctx) |
ff3d9c3c MA |
742 | { |
743 | u32 *word_ptr; | |
9196dc11 MA |
744 | ta_ctx->msg_len_words = 2; |
745 | ta_ctx->msgptr = ta_ctx->msg; | |
746 | memset(ta_ctx->msg, 0, SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); | |
747 | ta_ctx->msgptr += sizeof(u32) * 2; | |
748 | word_ptr = (u32 *)ta_ctx->msgptr; | |
ff3d9c3c MA |
749 | *word_ptr = SEP_START_MSG_TOKEN; |
750 | return sizeof(u32) * 2; | |
751 | } | |
752 | ||
753 | /** | |
754 | * sep_end_msg - | |
9196dc11 | 755 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
756 | * @messages_offset: current message offset |
757 | * Returns: 0 for success; <0 otherwise | |
758 | * End message; set length and CRC; and | |
759 | * send interrupt to the SEP | |
760 | */ | |
9196dc11 | 761 | static void sep_end_msg(struct this_task_ctx *ta_ctx, u32 msg_offset) |
ff3d9c3c MA |
762 | { |
763 | u32 *word_ptr; | |
764 | /* Msg size goes into msg after token */ | |
9196dc11 MA |
765 | ta_ctx->msg_len_words = msg_offset / sizeof(u32) + 1; |
766 | word_ptr = (u32 *)ta_ctx->msgptr; | |
ff3d9c3c | 767 | word_ptr += 1; |
9196dc11 | 768 | *word_ptr = ta_ctx->msg_len_words; |
ff3d9c3c MA |
769 | |
770 | /* CRC (currently 0) goes at end of msg */ | |
9196dc11 | 771 | word_ptr = (u32 *)(ta_ctx->msgptr + msg_offset); |
ff3d9c3c MA |
772 | *word_ptr = 0; |
773 | } | |
774 | ||
775 | /** | |
776 | * sep_start_inbound_msg - | |
9196dc11 | 777 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
778 | * @msg_offset: offset to place for the next word in the message |
779 | * @returns: 0 for success; error value for failure | |
780 | * Set up pointer in message pool for inbound message | |
781 | */ | |
9196dc11 | 782 | static u32 sep_start_inbound_msg(struct this_task_ctx *ta_ctx, u32 *msg_offset) |
ff3d9c3c MA |
783 | { |
784 | u32 *word_ptr; | |
785 | u32 token; | |
786 | u32 error = SEP_OK; | |
787 | ||
788 | *msg_offset = sizeof(u32) * 2; | |
9196dc11 | 789 | word_ptr = (u32 *)ta_ctx->msgptr; |
ff3d9c3c | 790 | token = *word_ptr; |
9196dc11 | 791 | ta_ctx->msg_len_words = *(word_ptr + 1); |
ff3d9c3c MA |
792 | |
793 | if (token != SEP_START_MSG_TOKEN) { | |
794 | error = SEP_INVALID_START; | |
795 | goto end_function; | |
796 | } | |
797 | ||
798 | end_function: | |
799 | ||
800 | return error; | |
801 | } | |
802 | ||
803 | /** | |
804 | * sep_write_msg - | |
9196dc11 | 805 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
806 | * @in_addr: pointer to start of parameter |
807 | * @size: size of parameter to copy (in bytes) | |
808 | * @max_size: size to move up offset; SEP mesg is in word sizes | |
809 | * @msg_offset: pointer to current offset (is updated) | |
810 | * @byte_array: flag ti indicate wheter endian must be changed | |
811 | * Copies data into the message area from caller | |
812 | */ | |
9196dc11 | 813 | static void sep_write_msg(struct this_task_ctx *ta_ctx, void *in_addr, |
ff3d9c3c MA |
814 | u32 size, u32 max_size, u32 *msg_offset, u32 byte_array) |
815 | { | |
816 | u32 *word_ptr; | |
817 | void *void_ptr; | |
9196dc11 | 818 | void_ptr = ta_ctx->msgptr + *msg_offset; |
ff3d9c3c MA |
819 | word_ptr = (u32 *)void_ptr; |
820 | memcpy(void_ptr, in_addr, size); | |
821 | *msg_offset += max_size; | |
822 | ||
823 | /* Do we need to manipulate endian? */ | |
824 | if (byte_array) { | |
825 | u32 i; | |
826 | for (i = 0; i < ((size + 3) / 4); i += 1) | |
827 | *(word_ptr + i) = CHG_ENDIAN(*(word_ptr + i)); | |
828 | } | |
829 | } | |
830 | ||
831 | /** | |
832 | * sep_make_header | |
9196dc11 | 833 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
834 | * @msg_offset: pointer to current offset (is updated) |
835 | * @op_code: op code to put into message | |
836 | * Puts op code into message and updates offset | |
837 | */ | |
9196dc11 | 838 | static void sep_make_header(struct this_task_ctx *ta_ctx, u32 *msg_offset, |
ff3d9c3c MA |
839 | u32 op_code) |
840 | { | |
841 | u32 *word_ptr; | |
842 | ||
9196dc11 MA |
843 | *msg_offset = sep_start_msg(ta_ctx); |
844 | word_ptr = (u32 *)(ta_ctx->msgptr + *msg_offset); | |
ff3d9c3c MA |
845 | *word_ptr = op_code; |
846 | *msg_offset += sizeof(u32); | |
847 | } | |
848 | ||
849 | ||
850 | ||
851 | /** | |
852 | * sep_read_msg - | |
9196dc11 | 853 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
854 | * @in_addr: pointer to start of parameter |
855 | * @size: size of parameter to copy (in bytes) | |
856 | * @max_size: size to move up offset; SEP mesg is in word sizes | |
857 | * @msg_offset: pointer to current offset (is updated) | |
858 | * @byte_array: flag ti indicate wheter endian must be changed | |
859 | * Copies data out of the message area to caller | |
860 | */ | |
9196dc11 | 861 | static void sep_read_msg(struct this_task_ctx *ta_ctx, void *in_addr, |
ff3d9c3c MA |
862 | u32 size, u32 max_size, u32 *msg_offset, u32 byte_array) |
863 | { | |
864 | u32 *word_ptr; | |
865 | void *void_ptr; | |
9196dc11 | 866 | void_ptr = ta_ctx->msgptr + *msg_offset; |
ff3d9c3c MA |
867 | word_ptr = (u32 *)void_ptr; |
868 | ||
869 | /* Do we need to manipulate endian? */ | |
870 | if (byte_array) { | |
871 | u32 i; | |
872 | for (i = 0; i < ((size + 3) / 4); i += 1) | |
873 | *(word_ptr + i) = CHG_ENDIAN(*(word_ptr + i)); | |
874 | } | |
875 | ||
876 | memcpy(in_addr, void_ptr, size); | |
877 | *msg_offset += max_size; | |
878 | } | |
879 | ||
880 | /** | |
881 | * sep_verify_op - | |
9196dc11 | 882 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
883 | * @op_code: expected op_code |
884 | * @msg_offset: pointer to current offset (is updated) | |
885 | * @returns: 0 for success; error for failure | |
886 | */ | |
9196dc11 | 887 | static u32 sep_verify_op(struct this_task_ctx *ta_ctx, u32 op_code, |
ff3d9c3c MA |
888 | u32 *msg_offset) |
889 | { | |
890 | u32 error; | |
891 | u32 in_ary[2]; | |
892 | ||
9196dc11 | 893 | struct sep_device *sep = ta_ctx->sep_used; |
ff3d9c3c MA |
894 | |
895 | dev_dbg(&sep->pdev->dev, "dumping return message\n"); | |
9196dc11 | 896 | error = sep_start_inbound_msg(ta_ctx, msg_offset); |
ff3d9c3c MA |
897 | if (error) { |
898 | dev_warn(&sep->pdev->dev, | |
899 | "sep_start_inbound_msg error\n"); | |
900 | return error; | |
901 | } | |
902 | ||
9196dc11 | 903 | sep_read_msg(ta_ctx, in_ary, sizeof(u32) * 2, sizeof(u32) * 2, |
ff3d9c3c MA |
904 | msg_offset, 0); |
905 | ||
906 | if (in_ary[0] != op_code) { | |
907 | dev_warn(&sep->pdev->dev, | |
908 | "sep got back wrong opcode\n"); | |
909 | dev_warn(&sep->pdev->dev, | |
910 | "got back %x; expected %x\n", | |
911 | in_ary[0], op_code); | |
912 | return SEP_WRONG_OPCODE; | |
913 | } | |
914 | ||
915 | if (in_ary[1] != SEP_OK) { | |
916 | dev_warn(&sep->pdev->dev, | |
917 | "sep execution error\n"); | |
918 | dev_warn(&sep->pdev->dev, | |
919 | "got back %x; expected %x\n", | |
920 | in_ary[1], SEP_OK); | |
921 | return in_ary[0]; | |
922 | } | |
923 | ||
924 | return 0; | |
925 | } | |
926 | ||
927 | /** | |
928 | * sep_read_context - | |
9196dc11 | 929 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
930 | * @msg_offset: point to current place in SEP msg; is updated |
931 | * @dst: pointer to place to put the context | |
932 | * @len: size of the context structure (differs for crypro/hash) | |
933 | * This function reads the context from the msg area | |
934 | * There is a special way the vendor needs to have the maximum | |
935 | * length calculated so that the msg_offset is updated properly; | |
936 | * it skips over some words in the msg area depending on the size | |
937 | * of the context | |
938 | */ | |
9196dc11 | 939 | static void sep_read_context(struct this_task_ctx *ta_ctx, u32 *msg_offset, |
ff3d9c3c MA |
940 | void *dst, u32 len) |
941 | { | |
942 | u32 max_length = ((len + 3) / sizeof(u32)) * sizeof(u32); | |
9196dc11 | 943 | sep_read_msg(ta_ctx, dst, len, max_length, msg_offset, 0); |
ff3d9c3c MA |
944 | } |
945 | ||
946 | /** | |
947 | * sep_write_context - | |
9196dc11 | 948 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
949 | * @msg_offset: point to current place in SEP msg; is updated |
950 | * @src: pointer to the current context | |
951 | * @len: size of the context structure (differs for crypro/hash) | |
952 | * This function writes the context to the msg area | |
953 | * There is a special way the vendor needs to have the maximum | |
954 | * length calculated so that the msg_offset is updated properly; | |
955 | * it skips over some words in the msg area depending on the size | |
956 | * of the context | |
957 | */ | |
9196dc11 | 958 | static void sep_write_context(struct this_task_ctx *ta_ctx, u32 *msg_offset, |
ff3d9c3c MA |
959 | void *src, u32 len) |
960 | { | |
961 | u32 max_length = ((len + 3) / sizeof(u32)) * sizeof(u32); | |
9196dc11 | 962 | sep_write_msg(ta_ctx, src, len, max_length, msg_offset, 0); |
ff3d9c3c MA |
963 | } |
964 | ||
965 | /** | |
966 | * sep_clear_out - | |
9196dc11 | 967 | * @ta_ctx: pointer to struct this_task_ctx |
ff3d9c3c MA |
968 | * Clear out crypto related values in sep device structure |
969 | * to enable device to be used by anyone; either kernel | |
970 | * crypto or userspace app via middleware | |
971 | */ | |
9196dc11 | 972 | static void sep_clear_out(struct this_task_ctx *ta_ctx) |
ff3d9c3c | 973 | { |
9196dc11 MA |
974 | if (ta_ctx->src_sg_hold) { |
975 | sep_free_sg_buf(ta_ctx->src_sg_hold); | |
976 | ta_ctx->src_sg_hold = NULL; | |
ff3d9c3c MA |
977 | } |
978 | ||
9196dc11 MA |
979 | if (ta_ctx->dst_sg_hold) { |
980 | sep_free_sg_buf(ta_ctx->dst_sg_hold); | |
981 | ta_ctx->dst_sg_hold = NULL; | |
ff3d9c3c MA |
982 | } |
983 | ||
9196dc11 MA |
984 | ta_ctx->src_sg = NULL; |
985 | ta_ctx->dst_sg = NULL; | |
ff3d9c3c | 986 | |
9196dc11 | 987 | sep_free_dma_table_data_handler(ta_ctx->sep_used, &ta_ctx->dma_ctx); |
ff3d9c3c | 988 | |
9196dc11 | 989 | if (ta_ctx->i_own_sep) { |
ff3d9c3c MA |
990 | /** |
991 | * The following unlocks the sep and makes it available | |
992 | * to any other application | |
993 | * First, null out crypto entries in sep before relesing it | |
994 | */ | |
9196dc11 MA |
995 | ta_ctx->sep_used->current_hash_req = NULL; |
996 | ta_ctx->sep_used->current_cypher_req = NULL; | |
997 | ta_ctx->sep_used->current_request = 0; | |
998 | ta_ctx->sep_used->current_hash_stage = 0; | |
999 | ta_ctx->sep_used->ta_ctx = NULL; | |
1000 | ta_ctx->sep_used->in_kernel = 0; | |
ff3d9c3c | 1001 | |
9196dc11 | 1002 | ta_ctx->call_status.status = 0; |
ff3d9c3c MA |
1003 | |
1004 | /* Remove anything confidentail */ | |
9196dc11 | 1005 | memset(ta_ctx->sep_used->shared_addr, 0, |
ff3d9c3c MA |
1006 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1007 | ||
9196dc11 | 1008 | sep_queue_status_remove(ta_ctx->sep_used, &ta_ctx->queue_elem); |
ff3d9c3c MA |
1009 | |
1010 | #ifdef SEP_ENABLE_RUNTIME_PM | |
9196dc11 MA |
1011 | ta_ctx->sep_used->in_use = 0; |
1012 | pm_runtime_mark_last_busy(&ta_ctx->sep_used->pdev->dev); | |
1013 | pm_runtime_put_autosuspend(&ta_ctx->sep_used->pdev->dev); | |
ff3d9c3c MA |
1014 | #endif |
1015 | ||
9196dc11 MA |
1016 | clear_bit(SEP_WORKING_LOCK_BIT, |
1017 | &ta_ctx->sep_used->in_use_flags); | |
1018 | ta_ctx->sep_used->pid_doing_transaction = 0; | |
ff3d9c3c | 1019 | |
9196dc11 | 1020 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1021 | "[PID%d] waking up next transaction\n", |
1022 | current->pid); | |
1023 | ||
1024 | clear_bit(SEP_TRANSACTION_STARTED_LOCK_BIT, | |
9196dc11 MA |
1025 | &ta_ctx->sep_used->in_use_flags); |
1026 | wake_up(&ta_ctx->sep_used->event_transactions); | |
ff3d9c3c | 1027 | |
9196dc11 | 1028 | ta_ctx->i_own_sep = 0; |
ff3d9c3c MA |
1029 | } |
1030 | } | |
1031 | ||
1032 | /** | |
1033 | * Release crypto infrastructure from EINPROGRESS and | |
1034 | * clear sep_dev so that SEP is available to anyone | |
1035 | */ | |
9196dc11 MA |
1036 | static void sep_crypto_release(struct sep_system_ctx *sctx, |
1037 | struct this_task_ctx *ta_ctx, u32 error) | |
ff3d9c3c | 1038 | { |
9196dc11 | 1039 | struct ahash_request *hash_req = ta_ctx->current_hash_req; |
ff3d9c3c | 1040 | struct ablkcipher_request *cypher_req = |
9196dc11 MA |
1041 | ta_ctx->current_cypher_req; |
1042 | struct sep_device *sep = ta_ctx->sep_used; | |
1043 | ||
1044 | sep_clear_out(ta_ctx); | |
ff3d9c3c | 1045 | |
9196dc11 MA |
1046 | /** |
1047 | * This may not yet exist depending when we | |
1048 | * chose to bail out. If it does exist, set | |
1049 | * it to 1 | |
1050 | */ | |
1051 | if (ta_ctx->are_we_done_yet != NULL) | |
1052 | *ta_ctx->are_we_done_yet = 1; | |
ff3d9c3c MA |
1053 | |
1054 | if (cypher_req != NULL) { | |
9196dc11 MA |
1055 | if ((sctx->key_sent == 1) || |
1056 | ((error != 0) && (error != -EINPROGRESS))) { | |
1057 | if (cypher_req->base.complete == NULL) { | |
1058 | dev_dbg(&sep->pdev->dev, | |
1059 | "release is null for cypher!"); | |
1060 | } else { | |
1061 | cypher_req->base.complete( | |
1062 | &cypher_req->base, error); | |
1063 | } | |
ff3d9c3c MA |
1064 | } |
1065 | } | |
1066 | ||
1067 | if (hash_req != NULL) { | |
1068 | if (hash_req->base.complete == NULL) { | |
1069 | dev_dbg(&sep->pdev->dev, | |
1070 | "release is null for hash!"); | |
1071 | } else { | |
1072 | hash_req->base.complete( | |
1073 | &hash_req->base, error); | |
1074 | } | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | /** | |
1079 | * This is where we grab the sep itself and tell it to do something. | |
1080 | * It will sleep if the sep is currently busy | |
1081 | * and it will return 0 if sep is now ours; error value if there | |
1082 | * were problems | |
1083 | */ | |
9196dc11 | 1084 | static int sep_crypto_take_sep(struct this_task_ctx *ta_ctx) |
ff3d9c3c | 1085 | { |
9196dc11 | 1086 | struct sep_device *sep = ta_ctx->sep_used; |
ff3d9c3c MA |
1087 | int result; |
1088 | struct sep_msgarea_hdr *my_msg_header; | |
1089 | ||
9196dc11 | 1090 | my_msg_header = (struct sep_msgarea_hdr *)ta_ctx->msg; |
ff3d9c3c MA |
1091 | |
1092 | /* add to status queue */ | |
9196dc11 MA |
1093 | ta_ctx->queue_elem = sep_queue_status_add(sep, my_msg_header->opcode, |
1094 | ta_ctx->nbytes, current->pid, | |
ff3d9c3c MA |
1095 | current->comm, sizeof(current->comm)); |
1096 | ||
9196dc11 | 1097 | if (!ta_ctx->queue_elem) { |
2e0bec91 AA |
1098 | dev_dbg(&sep->pdev->dev, |
1099 | "[PID%d] updating queue status error\n", current->pid); | |
ff3d9c3c MA |
1100 | return -EINVAL; |
1101 | } | |
1102 | ||
1103 | /* get the device; this can sleep */ | |
1104 | result = sep_wait_transaction(sep); | |
1105 | if (result) | |
1106 | return result; | |
1107 | ||
1108 | if (sep_dev->power_save_setup == 1) | |
1109 | pm_runtime_get_sync(&sep_dev->pdev->dev); | |
1110 | ||
1111 | /* Copy in the message */ | |
9196dc11 | 1112 | memcpy(sep->shared_addr, ta_ctx->msg, |
ff3d9c3c MA |
1113 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1114 | ||
1115 | /* Copy in the dcb information if there is any */ | |
9196dc11 | 1116 | if (ta_ctx->dcb_region) { |
ff3d9c3c | 1117 | result = sep_activate_dcb_dmatables_context(sep, |
9196dc11 MA |
1118 | &ta_ctx->dcb_region, &ta_ctx->dmatables_region, |
1119 | ta_ctx->dma_ctx); | |
ff3d9c3c MA |
1120 | if (result) |
1121 | return result; | |
1122 | } | |
1123 | ||
1124 | /* Mark the device so we know how to finish the job in the tasklet */ | |
9196dc11 MA |
1125 | if (ta_ctx->current_hash_req) |
1126 | sep->current_hash_req = ta_ctx->current_hash_req; | |
ff3d9c3c | 1127 | else |
9196dc11 | 1128 | sep->current_cypher_req = ta_ctx->current_cypher_req; |
ff3d9c3c | 1129 | |
9196dc11 MA |
1130 | sep->current_request = ta_ctx->current_request; |
1131 | sep->current_hash_stage = ta_ctx->current_hash_stage; | |
1132 | sep->ta_ctx = ta_ctx; | |
ff3d9c3c | 1133 | sep->in_kernel = 1; |
9196dc11 MA |
1134 | ta_ctx->i_own_sep = 1; |
1135 | ||
1136 | /* need to set bit first to avoid race condition with interrupt */ | |
1137 | set_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET, &ta_ctx->call_status.status); | |
ff3d9c3c MA |
1138 | |
1139 | result = sep_send_command_handler(sep); | |
1140 | ||
1141 | dev_dbg(&sep->pdev->dev, "[PID%d]: sending command to the sep\n", | |
1142 | current->pid); | |
1143 | ||
9196dc11 | 1144 | if (!result) |
ff3d9c3c MA |
1145 | dev_dbg(&sep->pdev->dev, "[PID%d]: command sent okay\n", |
1146 | current->pid); | |
9196dc11 MA |
1147 | else { |
1148 | dev_dbg(&sep->pdev->dev, "[PID%d]: cant send command\n", | |
1149 | current->pid); | |
1150 | clear_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET, | |
1151 | &ta_ctx->call_status.status); | |
ff3d9c3c MA |
1152 | } |
1153 | ||
1154 | return result; | |
1155 | } | |
1156 | ||
9196dc11 MA |
1157 | /** |
1158 | * This function sets things up for a crypto data block process | |
1159 | * This does all preparation, but does not try to grab the | |
1160 | * sep | |
1161 | * @req: pointer to struct ablkcipher_request | |
1162 | * returns: 0 if all went well, non zero if error | |
1163 | */ | |
1164 | static int sep_crypto_block_data(struct ablkcipher_request *req) | |
ff3d9c3c | 1165 | { |
9196dc11 | 1166 | |
ff3d9c3c MA |
1167 | int int_error; |
1168 | u32 msg_offset; | |
1169 | static u32 msg[10]; | |
1170 | void *src_ptr; | |
1171 | void *dst_ptr; | |
1172 | ||
1173 | static char small_buf[100]; | |
1174 | ssize_t copy_result; | |
1175 | int result; | |
1176 | ||
ff3d9c3c | 1177 | struct scatterlist *new_sg; |
9196dc11 | 1178 | struct this_task_ctx *ta_ctx; |
ff3d9c3c MA |
1179 | struct crypto_ablkcipher *tfm; |
1180 | struct sep_system_ctx *sctx; | |
1181 | ||
9196dc11 MA |
1182 | struct sep_des_internal_context *des_internal; |
1183 | struct sep_aes_internal_context *aes_internal; | |
1184 | ||
1185 | ta_ctx = ablkcipher_request_ctx(req); | |
ff3d9c3c MA |
1186 | tfm = crypto_ablkcipher_reqtfm(req); |
1187 | sctx = crypto_ablkcipher_ctx(tfm); | |
1188 | ||
1189 | /* start the walk on scatterlists */ | |
9196dc11 MA |
1190 | ablkcipher_walk_init(&ta_ctx->walk, req->src, req->dst, req->nbytes); |
1191 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "sep crypto block data size of %x\n", | |
ff3d9c3c MA |
1192 | req->nbytes); |
1193 | ||
9196dc11 | 1194 | int_error = ablkcipher_walk_phys(req, &ta_ctx->walk); |
ff3d9c3c | 1195 | if (int_error) { |
9196dc11 | 1196 | dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n", |
ff3d9c3c | 1197 | int_error); |
9196dc11 | 1198 | return -ENOMEM; |
ff3d9c3c MA |
1199 | } |
1200 | ||
9196dc11 | 1201 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1202 | "crypto block: src is %lx dst is %lx\n", |
1203 | (unsigned long)req->src, (unsigned long)req->dst); | |
1204 | ||
1205 | /* Make sure all pages are even block */ | |
9196dc11 MA |
1206 | int_error = sep_oddball_pages(ta_ctx->sep_used, req->src, |
1207 | req->nbytes, ta_ctx->walk.blocksize, &new_sg, 1); | |
ff3d9c3c MA |
1208 | |
1209 | if (int_error < 0) { | |
9196dc11 MA |
1210 | dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page eerror\n"); |
1211 | return -ENOMEM; | |
ff3d9c3c | 1212 | } else if (int_error == 1) { |
9196dc11 MA |
1213 | ta_ctx->src_sg = new_sg; |
1214 | ta_ctx->src_sg_hold = new_sg; | |
ff3d9c3c | 1215 | } else { |
9196dc11 MA |
1216 | ta_ctx->src_sg = req->src; |
1217 | ta_ctx->src_sg_hold = NULL; | |
ff3d9c3c MA |
1218 | } |
1219 | ||
9196dc11 MA |
1220 | int_error = sep_oddball_pages(ta_ctx->sep_used, req->dst, |
1221 | req->nbytes, ta_ctx->walk.blocksize, &new_sg, 0); | |
ff3d9c3c MA |
1222 | |
1223 | if (int_error < 0) { | |
9196dc11 | 1224 | dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n", |
ff3d9c3c | 1225 | int_error); |
9196dc11 | 1226 | return -ENOMEM; |
ff3d9c3c | 1227 | } else if (int_error == 1) { |
9196dc11 MA |
1228 | ta_ctx->dst_sg = new_sg; |
1229 | ta_ctx->dst_sg_hold = new_sg; | |
ff3d9c3c | 1230 | } else { |
9196dc11 MA |
1231 | ta_ctx->dst_sg = req->dst; |
1232 | ta_ctx->dst_sg_hold = NULL; | |
ff3d9c3c MA |
1233 | } |
1234 | ||
9196dc11 MA |
1235 | /* set nbytes for queue status */ |
1236 | ta_ctx->nbytes = req->nbytes; | |
ff3d9c3c | 1237 | |
9196dc11 MA |
1238 | /* Key already done; this is for data */ |
1239 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending data\n"); | |
ff3d9c3c | 1240 | |
9196dc11 MA |
1241 | sep_dump_sg(ta_ctx->sep_used, |
1242 | "block sg in", ta_ctx->src_sg); | |
ff3d9c3c | 1243 | |
9196dc11 MA |
1244 | /* check for valid data and proper spacing */ |
1245 | src_ptr = sg_virt(ta_ctx->src_sg); | |
1246 | dst_ptr = sg_virt(ta_ctx->dst_sg); | |
ff3d9c3c | 1247 | |
9196dc11 MA |
1248 | if (!src_ptr || !dst_ptr || |
1249 | (ta_ctx->current_cypher_req->nbytes % | |
1250 | crypto_ablkcipher_blocksize(tfm))) { | |
1251 | ||
1252 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1253 | "cipher block size odd\n"); | |
1254 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1255 | "cipher block size is %x\n", | |
1256 | crypto_ablkcipher_blocksize(tfm)); | |
1257 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1258 | "cipher data size is %x\n", | |
1259 | ta_ctx->current_cypher_req->nbytes); | |
1260 | return -EINVAL; | |
1261 | } | |
ff3d9c3c | 1262 | |
9196dc11 MA |
1263 | if (partial_overlap(src_ptr, dst_ptr, |
1264 | ta_ctx->current_cypher_req->nbytes)) { | |
1265 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1266 | "block partial overlap\n"); | |
1267 | return -EINVAL; | |
1268 | } | |
ff3d9c3c | 1269 | |
9196dc11 MA |
1270 | /* Put together the message */ |
1271 | sep_make_header(ta_ctx, &msg_offset, ta_ctx->block_opcode); | |
1272 | ||
1273 | /* If des, and size is 1 block, put directly in msg */ | |
1274 | if ((ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) && | |
1275 | (req->nbytes == crypto_ablkcipher_blocksize(tfm))) { | |
1276 | ||
1277 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1278 | "writing out one block des\n"); | |
1279 | ||
1280 | copy_result = sg_copy_to_buffer( | |
1281 | ta_ctx->src_sg, sep_sg_nents(ta_ctx->src_sg), | |
1282 | small_buf, crypto_ablkcipher_blocksize(tfm)); | |
ff3d9c3c | 1283 | |
9196dc11 MA |
1284 | if (copy_result != crypto_ablkcipher_blocksize(tfm)) { |
1285 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1286 | "des block copy faild\n"); | |
1287 | return -ENOMEM; | |
ff3d9c3c MA |
1288 | } |
1289 | ||
9196dc11 MA |
1290 | /* Put data into message */ |
1291 | sep_write_msg(ta_ctx, small_buf, | |
1292 | crypto_ablkcipher_blocksize(tfm), | |
1293 | crypto_ablkcipher_blocksize(tfm) * 2, | |
1294 | &msg_offset, 1); | |
1295 | ||
1296 | /* Put size into message */ | |
1297 | sep_write_msg(ta_ctx, &req->nbytes, | |
1298 | sizeof(u32), sizeof(u32), &msg_offset, 0); | |
ff3d9c3c | 1299 | } else { |
9196dc11 MA |
1300 | /* Otherwise, fill out dma tables */ |
1301 | ta_ctx->dcb_input_data.app_in_address = src_ptr; | |
1302 | ta_ctx->dcb_input_data.data_in_size = req->nbytes; | |
1303 | ta_ctx->dcb_input_data.app_out_address = dst_ptr; | |
1304 | ta_ctx->dcb_input_data.block_size = | |
1305 | crypto_ablkcipher_blocksize(tfm); | |
1306 | ta_ctx->dcb_input_data.tail_block_size = 0; | |
1307 | ta_ctx->dcb_input_data.is_applet = 0; | |
1308 | ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg; | |
1309 | ta_ctx->dcb_input_data.dst_sg = ta_ctx->dst_sg; | |
1310 | ||
1311 | result = sep_create_dcb_dmatables_context_kernel( | |
1312 | ta_ctx->sep_used, | |
1313 | &ta_ctx->dcb_region, | |
1314 | &ta_ctx->dmatables_region, | |
1315 | &ta_ctx->dma_ctx, | |
1316 | &ta_ctx->dcb_input_data, | |
1317 | 1); | |
1318 | if (result) { | |
1319 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1320 | "crypto dma table create failed\n"); | |
1321 | return -EINVAL; | |
1322 | } | |
1323 | ||
1324 | /* Portion of msg is nulled (no data) */ | |
1325 | msg[0] = (u32)0; | |
1326 | msg[1] = (u32)0; | |
1327 | msg[2] = (u32)0; | |
1328 | msg[3] = (u32)0; | |
1329 | msg[4] = (u32)0; | |
1330 | sep_write_msg(ta_ctx, (void *)msg, sizeof(u32) * 5, | |
1331 | sizeof(u32) * 5, &msg_offset, 0); | |
1332 | } | |
ff3d9c3c | 1333 | |
9196dc11 MA |
1334 | /** |
1335 | * Before we write the message, we need to overwrite the | |
1336 | * vendor's IV with the one from our own ablkcipher walk | |
1337 | * iv because this is needed for dm-crypt | |
1338 | */ | |
1339 | sep_dump_ivs(req, "sending data block to sep\n"); | |
1340 | if ((ta_ctx->current_request == DES_CBC) && | |
1341 | (ta_ctx->des_opmode == SEP_DES_CBC)) { | |
1342 | ||
1343 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1344 | "overwrite vendor iv on DES\n"); | |
1345 | des_internal = (struct sep_des_internal_context *) | |
1346 | sctx->des_private_ctx.ctx_buf; | |
1347 | memcpy((void *)des_internal->iv_context, | |
1348 | ta_ctx->walk.iv, crypto_ablkcipher_ivsize(tfm)); | |
1349 | } else if ((ta_ctx->current_request == AES_CBC) && | |
1350 | (ta_ctx->aes_opmode == SEP_AES_CBC)) { | |
1351 | ||
1352 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1353 | "overwrite vendor iv on AES\n"); | |
1354 | aes_internal = (struct sep_aes_internal_context *) | |
1355 | sctx->aes_private_ctx.cbuff; | |
1356 | memcpy((void *)aes_internal->aes_ctx_iv, | |
1357 | ta_ctx->walk.iv, crypto_ablkcipher_ivsize(tfm)); | |
1358 | } | |
1359 | ||
1360 | /* Write context into message */ | |
1361 | if (ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) { | |
1362 | sep_write_context(ta_ctx, &msg_offset, | |
1363 | &sctx->des_private_ctx, | |
1364 | sizeof(struct sep_des_private_context)); | |
1365 | sep_dump(ta_ctx->sep_used, "ctx to block des", | |
1366 | &sctx->des_private_ctx, 40); | |
1367 | } else { | |
1368 | sep_write_context(ta_ctx, &msg_offset, | |
1369 | &sctx->aes_private_ctx, | |
1370 | sizeof(struct sep_aes_private_context)); | |
1371 | sep_dump(ta_ctx->sep_used, "ctx to block aes", | |
1372 | &sctx->aes_private_ctx, 20); | |
1373 | } | |
ff3d9c3c | 1374 | |
9196dc11 MA |
1375 | /* conclude message */ |
1376 | sep_end_msg(ta_ctx, msg_offset); | |
ff3d9c3c | 1377 | |
9196dc11 MA |
1378 | /* Parent (caller) is now ready to tell the sep to do ahead */ |
1379 | return 0; | |
1380 | } | |
ff3d9c3c | 1381 | |
ff3d9c3c | 1382 | |
9196dc11 MA |
1383 | /** |
1384 | * This function sets things up for a crypto key submit process | |
1385 | * This does all preparation, but does not try to grab the | |
1386 | * sep | |
1387 | * @req: pointer to struct ablkcipher_request | |
1388 | * returns: 0 if all went well, non zero if error | |
1389 | */ | |
1390 | static int sep_crypto_send_key(struct ablkcipher_request *req) | |
1391 | { | |
ff3d9c3c | 1392 | |
9196dc11 MA |
1393 | int int_error; |
1394 | u32 msg_offset; | |
1395 | static u32 msg[10]; | |
ff3d9c3c | 1396 | |
9196dc11 MA |
1397 | u32 max_length; |
1398 | struct this_task_ctx *ta_ctx; | |
1399 | struct crypto_ablkcipher *tfm; | |
1400 | struct sep_system_ctx *sctx; | |
ff3d9c3c | 1401 | |
9196dc11 MA |
1402 | ta_ctx = ablkcipher_request_ctx(req); |
1403 | tfm = crypto_ablkcipher_reqtfm(req); | |
1404 | sctx = crypto_ablkcipher_ctx(tfm); | |
ff3d9c3c | 1405 | |
9196dc11 | 1406 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending key\n"); |
ff3d9c3c | 1407 | |
9196dc11 MA |
1408 | /* start the walk on scatterlists */ |
1409 | ablkcipher_walk_init(&ta_ctx->walk, req->src, req->dst, req->nbytes); | |
1410 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1411 | "sep crypto block data size of %x\n", req->nbytes); | |
ff3d9c3c | 1412 | |
9196dc11 MA |
1413 | int_error = ablkcipher_walk_phys(req, &ta_ctx->walk); |
1414 | if (int_error) { | |
1415 | dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n", | |
1416 | int_error); | |
1417 | return -ENOMEM; | |
1418 | } | |
ff3d9c3c | 1419 | |
9196dc11 MA |
1420 | /* check iv */ |
1421 | if ((ta_ctx->current_request == DES_CBC) && | |
1422 | (ta_ctx->des_opmode == SEP_DES_CBC)) { | |
1423 | if (!ta_ctx->walk.iv) { | |
1424 | dev_warn(&ta_ctx->sep_used->pdev->dev, "no iv found\n"); | |
1425 | return -EINVAL; | |
1426 | } | |
ff3d9c3c | 1427 | |
9196dc11 MA |
1428 | memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES); |
1429 | sep_dump(ta_ctx->sep_used, "iv", | |
1430 | ta_ctx->iv, SEP_DES_IV_SIZE_BYTES); | |
1431 | } | |
ff3d9c3c | 1432 | |
9196dc11 MA |
1433 | if ((ta_ctx->current_request == AES_CBC) && |
1434 | (ta_ctx->aes_opmode == SEP_AES_CBC)) { | |
1435 | if (!ta_ctx->walk.iv) { | |
1436 | dev_warn(&ta_ctx->sep_used->pdev->dev, "no iv found\n"); | |
1437 | return -EINVAL; | |
1438 | } | |
1439 | ||
1440 | memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES); | |
1441 | sep_dump(ta_ctx->sep_used, "iv", | |
1442 | ta_ctx->iv, SEP_AES_IV_SIZE_BYTES); | |
1443 | } | |
1444 | ||
1445 | /* put together message to SEP */ | |
1446 | /* Start with op code */ | |
1447 | sep_make_header(ta_ctx, &msg_offset, ta_ctx->init_opcode); | |
1448 | ||
1449 | /* now deal with IV */ | |
1450 | if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) { | |
1451 | if (ta_ctx->des_opmode == SEP_DES_CBC) { | |
1452 | sep_write_msg(ta_ctx, ta_ctx->iv, | |
1453 | SEP_DES_IV_SIZE_BYTES, sizeof(u32) * 4, | |
1454 | &msg_offset, 1); | |
1455 | sep_dump(ta_ctx->sep_used, "initial IV", | |
1456 | ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES); | |
1457 | } else { | |
1458 | /* Skip if ECB */ | |
1459 | msg_offset += 4 * sizeof(u32); | |
1460 | } | |
1461 | } else { | |
1462 | max_length = ((SEP_AES_IV_SIZE_BYTES + 3) / | |
1463 | sizeof(u32)) * sizeof(u32); | |
1464 | if (ta_ctx->aes_opmode == SEP_AES_CBC) { | |
1465 | sep_write_msg(ta_ctx, ta_ctx->iv, | |
1466 | SEP_AES_IV_SIZE_BYTES, max_length, | |
1467 | &msg_offset, 1); | |
1468 | sep_dump(ta_ctx->sep_used, "initial IV", | |
1469 | ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES); | |
ff3d9c3c | 1470 | } else { |
9196dc11 MA |
1471 | /* Skip if ECB */ |
1472 | msg_offset += max_length; | |
ff3d9c3c | 1473 | } |
9196dc11 MA |
1474 | } |
1475 | ||
1476 | /* load the key */ | |
1477 | if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) { | |
1478 | sep_write_msg(ta_ctx, (void *)&sctx->key.des.key1, | |
1479 | sizeof(u32) * 8, sizeof(u32) * 8, | |
1480 | &msg_offset, 1); | |
1481 | ||
1482 | msg[0] = (u32)sctx->des_nbr_keys; | |
1483 | msg[1] = (u32)ta_ctx->des_encmode; | |
1484 | msg[2] = (u32)ta_ctx->des_opmode; | |
ff3d9c3c | 1485 | |
9196dc11 MA |
1486 | sep_write_msg(ta_ctx, (void *)msg, |
1487 | sizeof(u32) * 3, sizeof(u32) * 3, | |
1488 | &msg_offset, 0); | |
1489 | } else { | |
1490 | sep_write_msg(ta_ctx, (void *)&sctx->key.aes, | |
1491 | sctx->keylen, | |
1492 | SEP_AES_MAX_KEY_SIZE_BYTES, | |
1493 | &msg_offset, 1); | |
1494 | ||
1495 | msg[0] = (u32)sctx->aes_key_size; | |
1496 | msg[1] = (u32)ta_ctx->aes_encmode; | |
1497 | msg[2] = (u32)ta_ctx->aes_opmode; | |
1498 | msg[3] = (u32)0; /* Secret key is not used */ | |
1499 | sep_write_msg(ta_ctx, (void *)msg, | |
1500 | sizeof(u32) * 4, sizeof(u32) * 4, | |
1501 | &msg_offset, 0); | |
1502 | } | |
1503 | ||
1504 | /* conclude message */ | |
1505 | sep_end_msg(ta_ctx, msg_offset); | |
1506 | ||
1507 | /* Parent (caller) is now ready to tell the sep to do ahead */ | |
1508 | return 0; | |
1509 | } | |
1510 | ||
1511 | ||
1512 | /* This needs to be run as a work queue as it can be put asleep */ | |
1513 | static void sep_crypto_block(void *data) | |
1514 | { | |
1515 | unsigned long end_time; | |
1516 | ||
1517 | int result; | |
1518 | ||
1519 | struct ablkcipher_request *req; | |
1520 | struct this_task_ctx *ta_ctx; | |
1521 | struct crypto_ablkcipher *tfm; | |
1522 | struct sep_system_ctx *sctx; | |
1523 | int are_we_done_yet; | |
1524 | ||
1525 | req = (struct ablkcipher_request *)data; | |
1526 | ta_ctx = ablkcipher_request_ctx(req); | |
1527 | tfm = crypto_ablkcipher_reqtfm(req); | |
1528 | sctx = crypto_ablkcipher_ctx(tfm); | |
1529 | ||
1530 | ta_ctx->are_we_done_yet = &are_we_done_yet; | |
1531 | ||
1532 | pr_debug("sep_crypto_block\n"); | |
1533 | pr_debug("tfm is %p sctx is %p ta_ctx is %p\n", | |
1534 | tfm, sctx, ta_ctx); | |
1535 | pr_debug("key_sent is %d\n", sctx->key_sent); | |
1536 | ||
1537 | /* do we need to send the key */ | |
1538 | if (sctx->key_sent == 0) { | |
1539 | are_we_done_yet = 0; | |
1540 | result = sep_crypto_send_key(req); /* prep to send key */ | |
1541 | if (result != 0) { | |
1542 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1543 | "could not prep key %x\n", result); | |
1544 | sep_crypto_release(sctx, ta_ctx, result); | |
1545 | return; | |
ff3d9c3c MA |
1546 | } |
1547 | ||
9196dc11 MA |
1548 | result = sep_crypto_take_sep(ta_ctx); |
1549 | if (result) { | |
1550 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1551 | "sep_crypto_take_sep for key send failed\n"); | |
1552 | sep_crypto_release(sctx, ta_ctx, result); | |
1553 | return; | |
1554 | } | |
1555 | ||
1556 | /* now we sit and wait up to a fixed time for completion */ | |
1557 | end_time = jiffies + (WAIT_TIME * HZ); | |
1558 | while ((time_before(jiffies, end_time)) && | |
1559 | (are_we_done_yet == 0)) | |
1560 | schedule(); | |
1561 | ||
1562 | /* Done waiting; still not done yet? */ | |
1563 | if (are_we_done_yet == 0) { | |
1564 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1565 | "Send key job never got done\n"); | |
1566 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
1567 | return; | |
ff3d9c3c | 1568 | } |
9196dc11 MA |
1569 | |
1570 | /* Set the key sent variable so this can be skipped later */ | |
1571 | sctx->key_sent = 1; | |
ff3d9c3c MA |
1572 | } |
1573 | ||
9196dc11 MA |
1574 | /* Key sent (or maybe not if we did not have to), now send block */ |
1575 | are_we_done_yet = 0; | |
ff3d9c3c | 1576 | |
9196dc11 MA |
1577 | result = sep_crypto_block_data(req); |
1578 | ||
1579 | if (result != 0) { | |
1580 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1581 | "could prep not send block %x\n", result); | |
1582 | sep_crypto_release(sctx, ta_ctx, result); | |
ff3d9c3c MA |
1583 | return; |
1584 | } | |
1585 | ||
9196dc11 MA |
1586 | result = sep_crypto_take_sep(ta_ctx); |
1587 | if (result) { | |
1588 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1589 | "sep_crypto_take_sep for block send failed\n"); | |
1590 | sep_crypto_release(sctx, ta_ctx, result); | |
1591 | return; | |
1592 | } | |
ff3d9c3c | 1593 | |
9196dc11 MA |
1594 | /* now we sit and wait up to a fixed time for completion */ |
1595 | end_time = jiffies + (WAIT_TIME * HZ); | |
1596 | while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0)) | |
ff3d9c3c MA |
1597 | schedule(); |
1598 | ||
9196dc11 MA |
1599 | /* Done waiting; still not done yet? */ |
1600 | if (are_we_done_yet == 0) { | |
1601 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1602 | "Send block job never got done\n"); | |
1603 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
1604 | return; | |
ff3d9c3c | 1605 | } |
9196dc11 MA |
1606 | |
1607 | /* That's it; entire thing done, get out of queue */ | |
1608 | ||
1609 | pr_debug("crypto_block leaving\n"); | |
1610 | pr_debug("tfm is %p sctx is %p ta_ctx is %p\n", tfm, sctx, ta_ctx); | |
ff3d9c3c MA |
1611 | } |
1612 | ||
1613 | /** | |
1614 | * Post operation (after interrupt) for crypto block | |
1615 | */ | |
1616 | static u32 crypto_post_op(struct sep_device *sep) | |
1617 | { | |
1618 | /* HERE */ | |
ff3d9c3c MA |
1619 | u32 u32_error; |
1620 | u32 msg_offset; | |
1621 | ||
1622 | ssize_t copy_result; | |
1623 | static char small_buf[100]; | |
1624 | ||
1625 | struct ablkcipher_request *req; | |
9196dc11 | 1626 | struct this_task_ctx *ta_ctx; |
ff3d9c3c MA |
1627 | struct sep_system_ctx *sctx; |
1628 | struct crypto_ablkcipher *tfm; | |
1629 | ||
9196dc11 MA |
1630 | struct sep_des_internal_context *des_internal; |
1631 | struct sep_aes_internal_context *aes_internal; | |
1632 | ||
ff3d9c3c MA |
1633 | if (!sep->current_cypher_req) |
1634 | return -EINVAL; | |
1635 | ||
1636 | /* hold req since we need to submit work after clearing sep */ | |
1637 | req = sep->current_cypher_req; | |
1638 | ||
9196dc11 | 1639 | ta_ctx = ablkcipher_request_ctx(sep->current_cypher_req); |
ff3d9c3c MA |
1640 | tfm = crypto_ablkcipher_reqtfm(sep->current_cypher_req); |
1641 | sctx = crypto_ablkcipher_ctx(tfm); | |
1642 | ||
9196dc11 MA |
1643 | pr_debug("crypto_post op\n"); |
1644 | pr_debug("key_sent is %d tfm is %p sctx is %p ta_ctx is %p\n", | |
1645 | sctx->key_sent, tfm, sctx, ta_ctx); | |
ff3d9c3c | 1646 | |
9196dc11 MA |
1647 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op\n"); |
1648 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op message dump\n"); | |
1649 | crypto_sep_dump_message(ta_ctx->sep_used, ta_ctx->msg); | |
ff3d9c3c MA |
1650 | |
1651 | /* first bring msg from shared area to local area */ | |
9196dc11 | 1652 | memcpy(ta_ctx->msg, sep->shared_addr, |
ff3d9c3c MA |
1653 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1654 | ||
1655 | /* Is this the result of performing init (key to SEP */ | |
1656 | if (sctx->key_sent == 0) { | |
1657 | ||
1658 | /* Did SEP do it okay */ | |
9196dc11 | 1659 | u32_error = sep_verify_op(ta_ctx, ta_ctx->init_opcode, |
ff3d9c3c MA |
1660 | &msg_offset); |
1661 | if (u32_error) { | |
9196dc11 | 1662 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 1663 | "aes init error %x\n", u32_error); |
9196dc11 | 1664 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1665 | return u32_error; |
1666 | } | |
1667 | ||
1668 | /* Read Context */ | |
9196dc11 MA |
1669 | if (ta_ctx->init_opcode == SEP_DES_INIT_OPCODE) { |
1670 | sep_read_context(ta_ctx, &msg_offset, | |
1671 | &sctx->des_private_ctx, | |
ff3d9c3c MA |
1672 | sizeof(struct sep_des_private_context)); |
1673 | ||
9196dc11 MA |
1674 | sep_dump(ta_ctx->sep_used, "ctx init des", |
1675 | &sctx->des_private_ctx, 40); | |
ff3d9c3c | 1676 | } else { |
9196dc11 MA |
1677 | sep_read_context(ta_ctx, &msg_offset, |
1678 | &sctx->aes_private_ctx, | |
1679 | sizeof(struct sep_aes_private_context)); | |
ff3d9c3c | 1680 | |
9196dc11 MA |
1681 | sep_dump(ta_ctx->sep_used, "ctx init aes", |
1682 | &sctx->aes_private_ctx, 20); | |
ff3d9c3c MA |
1683 | } |
1684 | ||
9196dc11 | 1685 | sep_dump_ivs(req, "after sending key to sep\n"); |
ff3d9c3c | 1686 | |
9196dc11 MA |
1687 | /* key sent went okay; release sep, and set are_we_done_yet */ |
1688 | sctx->key_sent = 1; | |
1689 | sep_crypto_release(sctx, ta_ctx, -EINPROGRESS); | |
ff3d9c3c MA |
1690 | |
1691 | } else { | |
1692 | ||
1693 | /** | |
1694 | * This is the result of a block request | |
1695 | */ | |
9196dc11 | 1696 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1697 | "crypto_post_op block response\n"); |
1698 | ||
9196dc11 | 1699 | u32_error = sep_verify_op(ta_ctx, ta_ctx->block_opcode, |
ff3d9c3c MA |
1700 | &msg_offset); |
1701 | ||
1702 | if (u32_error) { | |
9196dc11 | 1703 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 1704 | "sep block error %x\n", u32_error); |
9196dc11 | 1705 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1706 | return -EINVAL; |
1707 | } | |
1708 | ||
9196dc11 | 1709 | if (ta_ctx->block_opcode == SEP_DES_BLOCK_OPCODE) { |
ff3d9c3c | 1710 | |
9196dc11 | 1711 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1712 | "post op for DES\n"); |
1713 | ||
1714 | /* special case for 1 block des */ | |
1715 | if (sep->current_cypher_req->nbytes == | |
1716 | crypto_ablkcipher_blocksize(tfm)) { | |
1717 | ||
9196dc11 | 1718 | sep_read_msg(ta_ctx, small_buf, |
ff3d9c3c MA |
1719 | crypto_ablkcipher_blocksize(tfm), |
1720 | crypto_ablkcipher_blocksize(tfm) * 2, | |
1721 | &msg_offset, 1); | |
1722 | ||
9196dc11 | 1723 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1724 | "reading in block des\n"); |
1725 | ||
1726 | copy_result = sg_copy_from_buffer( | |
9196dc11 MA |
1727 | ta_ctx->dst_sg, |
1728 | sep_sg_nents(ta_ctx->dst_sg), | |
ff3d9c3c MA |
1729 | small_buf, |
1730 | crypto_ablkcipher_blocksize(tfm)); | |
1731 | ||
1732 | if (copy_result != | |
1733 | crypto_ablkcipher_blocksize(tfm)) { | |
1734 | ||
9196dc11 | 1735 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 1736 | "des block copy faild\n"); |
9196dc11 MA |
1737 | sep_crypto_release(sctx, ta_ctx, |
1738 | -ENOMEM); | |
ff3d9c3c MA |
1739 | return -ENOMEM; |
1740 | } | |
1741 | } | |
1742 | ||
1743 | /* Read Context */ | |
9196dc11 MA |
1744 | sep_read_context(ta_ctx, &msg_offset, |
1745 | &sctx->des_private_ctx, | |
ff3d9c3c MA |
1746 | sizeof(struct sep_des_private_context)); |
1747 | } else { | |
1748 | ||
9196dc11 | 1749 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1750 | "post op for AES\n"); |
1751 | ||
1752 | /* Skip the MAC Output */ | |
1753 | msg_offset += (sizeof(u32) * 4); | |
1754 | ||
1755 | /* Read Context */ | |
9196dc11 MA |
1756 | sep_read_context(ta_ctx, &msg_offset, |
1757 | &sctx->aes_private_ctx, | |
ff3d9c3c MA |
1758 | sizeof(struct sep_aes_private_context)); |
1759 | } | |
1760 | ||
9196dc11 MA |
1761 | sep_dump_sg(ta_ctx->sep_used, |
1762 | "block sg out", ta_ctx->dst_sg); | |
ff3d9c3c MA |
1763 | |
1764 | /* Copy to correct sg if this block had oddball pages */ | |
9196dc11 MA |
1765 | if (ta_ctx->dst_sg_hold) |
1766 | sep_copy_sg(ta_ctx->sep_used, | |
1767 | ta_ctx->dst_sg, | |
1768 | ta_ctx->current_cypher_req->dst, | |
1769 | ta_ctx->current_cypher_req->nbytes); | |
1770 | ||
1771 | /** | |
1772 | * Copy the iv's back to the walk.iv | |
1773 | * This is required for dm_crypt | |
1774 | */ | |
1775 | sep_dump_ivs(req, "got data block from sep\n"); | |
1776 | if ((ta_ctx->current_request == DES_CBC) && | |
1777 | (ta_ctx->des_opmode == SEP_DES_CBC)) { | |
1778 | ||
1779 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1780 | "returning result iv to walk on DES\n"); | |
1781 | des_internal = (struct sep_des_internal_context *) | |
1782 | sctx->des_private_ctx.ctx_buf; | |
1783 | memcpy(ta_ctx->walk.iv, | |
1784 | (void *)des_internal->iv_context, | |
1785 | crypto_ablkcipher_ivsize(tfm)); | |
1786 | } else if ((ta_ctx->current_request == AES_CBC) && | |
1787 | (ta_ctx->aes_opmode == SEP_AES_CBC)) { | |
1788 | ||
1789 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
1790 | "returning result iv to walk on AES\n"); | |
1791 | aes_internal = (struct sep_aes_internal_context *) | |
1792 | sctx->aes_private_ctx.cbuff; | |
1793 | memcpy(ta_ctx->walk.iv, | |
1794 | (void *)aes_internal->aes_ctx_iv, | |
1795 | crypto_ablkcipher_ivsize(tfm)); | |
1796 | } | |
ff3d9c3c MA |
1797 | |
1798 | /* finished, release everything */ | |
9196dc11 | 1799 | sep_crypto_release(sctx, ta_ctx, 0); |
ff3d9c3c | 1800 | } |
9196dc11 MA |
1801 | pr_debug("crypto_post_op done\n"); |
1802 | pr_debug("key_sent is %d tfm is %p sctx is %p ta_ctx is %p\n", | |
1803 | sctx->key_sent, tfm, sctx, ta_ctx); | |
1804 | ||
ff3d9c3c MA |
1805 | return 0; |
1806 | } | |
1807 | ||
1808 | static u32 hash_init_post_op(struct sep_device *sep) | |
1809 | { | |
1810 | u32 u32_error; | |
1811 | u32 msg_offset; | |
1812 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req); | |
9196dc11 | 1813 | struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req); |
ff3d9c3c | 1814 | struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm); |
9196dc11 | 1815 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1816 | "hash init post op\n"); |
1817 | ||
ff3d9c3c | 1818 | /* first bring msg from shared area to local area */ |
9196dc11 | 1819 | memcpy(ta_ctx->msg, sep->shared_addr, |
ff3d9c3c MA |
1820 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1821 | ||
9196dc11 | 1822 | u32_error = sep_verify_op(ta_ctx, SEP_HASH_INIT_OPCODE, |
ff3d9c3c MA |
1823 | &msg_offset); |
1824 | ||
1825 | if (u32_error) { | |
9196dc11 | 1826 | dev_warn(&ta_ctx->sep_used->pdev->dev, "hash init error %x\n", |
ff3d9c3c | 1827 | u32_error); |
9196dc11 | 1828 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1829 | return u32_error; |
1830 | } | |
1831 | ||
1832 | /* Read Context */ | |
9196dc11 MA |
1833 | sep_read_context(ta_ctx, &msg_offset, |
1834 | &sctx->hash_private_ctx, | |
ff3d9c3c MA |
1835 | sizeof(struct sep_hash_private_context)); |
1836 | ||
1837 | /* Signal to crypto infrastructure and clear out */ | |
9196dc11 MA |
1838 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash init post op done\n"); |
1839 | sep_crypto_release(sctx, ta_ctx, 0); | |
ff3d9c3c MA |
1840 | return 0; |
1841 | } | |
1842 | ||
1843 | static u32 hash_update_post_op(struct sep_device *sep) | |
1844 | { | |
1845 | u32 u32_error; | |
1846 | u32 msg_offset; | |
1847 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req); | |
9196dc11 | 1848 | struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req); |
ff3d9c3c | 1849 | struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm); |
9196dc11 | 1850 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1851 | "hash update post op\n"); |
1852 | ||
ff3d9c3c | 1853 | /* first bring msg from shared area to local area */ |
9196dc11 | 1854 | memcpy(ta_ctx->msg, sep->shared_addr, |
ff3d9c3c MA |
1855 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1856 | ||
9196dc11 | 1857 | u32_error = sep_verify_op(ta_ctx, SEP_HASH_UPDATE_OPCODE, |
ff3d9c3c MA |
1858 | &msg_offset); |
1859 | ||
1860 | if (u32_error) { | |
9196dc11 | 1861 | dev_warn(&ta_ctx->sep_used->pdev->dev, "hash init error %x\n", |
ff3d9c3c | 1862 | u32_error); |
9196dc11 | 1863 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1864 | return u32_error; |
1865 | } | |
1866 | ||
1867 | /* Read Context */ | |
9196dc11 MA |
1868 | sep_read_context(ta_ctx, &msg_offset, |
1869 | &sctx->hash_private_ctx, | |
ff3d9c3c MA |
1870 | sizeof(struct sep_hash_private_context)); |
1871 | ||
9196dc11 MA |
1872 | /** |
1873 | * Following is only for finup; if we just completd the | |
1874 | * data portion of finup, we now need to kick off the | |
1875 | * finish portion of finup. | |
1876 | */ | |
1877 | ||
1878 | if (ta_ctx->sep_used->current_hash_stage == HASH_FINUP_DATA) { | |
1879 | ||
1880 | /* first reset stage to HASH_FINUP_FINISH */ | |
1881 | ta_ctx->sep_used->current_hash_stage = HASH_FINUP_FINISH; | |
1882 | ||
1883 | /* now enqueue the finish operation */ | |
1884 | spin_lock_irq(&queue_lock); | |
1885 | u32_error = crypto_enqueue_request(&sep_queue, | |
1886 | &ta_ctx->sep_used->current_hash_req->base); | |
1887 | spin_unlock_irq(&queue_lock); | |
1888 | ||
1889 | if ((u32_error != 0) && (u32_error != -EINPROGRESS)) { | |
1890 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1891 | "spe cypher post op cant queue\n"); | |
1892 | sep_crypto_release(sctx, ta_ctx, u32_error); | |
1893 | return u32_error; | |
1894 | } | |
1895 | ||
1896 | /* schedule the data send */ | |
1897 | u32_error = sep_submit_work(ta_ctx->sep_used->workqueue, | |
1898 | sep_dequeuer, (void *)&sep_queue); | |
1899 | ||
1900 | if (u32_error) { | |
1901 | dev_warn(&ta_ctx->sep_used->pdev->dev, | |
1902 | "cant submit work sep_crypto_block\n"); | |
1903 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
1904 | return -EINVAL; | |
1905 | } | |
1906 | } | |
1907 | ||
1908 | /* Signal to crypto infrastructure and clear out */ | |
1909 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash update post op done\n"); | |
1910 | sep_crypto_release(sctx, ta_ctx, 0); | |
ff3d9c3c MA |
1911 | return 0; |
1912 | } | |
1913 | ||
1914 | static u32 hash_final_post_op(struct sep_device *sep) | |
1915 | { | |
1916 | int max_length; | |
1917 | u32 u32_error; | |
1918 | u32 msg_offset; | |
1919 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req); | |
1920 | struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm); | |
9196dc11 MA |
1921 | struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req); |
1922 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
ff3d9c3c MA |
1923 | "hash final post op\n"); |
1924 | ||
ff3d9c3c | 1925 | /* first bring msg from shared area to local area */ |
9196dc11 | 1926 | memcpy(ta_ctx->msg, sep->shared_addr, |
ff3d9c3c MA |
1927 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1928 | ||
9196dc11 | 1929 | u32_error = sep_verify_op(ta_ctx, SEP_HASH_FINISH_OPCODE, |
ff3d9c3c MA |
1930 | &msg_offset); |
1931 | ||
1932 | if (u32_error) { | |
9196dc11 | 1933 | dev_warn(&ta_ctx->sep_used->pdev->dev, "hash finish error %x\n", |
ff3d9c3c | 1934 | u32_error); |
9196dc11 | 1935 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1936 | return u32_error; |
1937 | } | |
1938 | ||
1939 | /* Grab the result */ | |
9196dc11 | 1940 | if (ta_ctx->current_hash_req->result == NULL) { |
ff3d9c3c | 1941 | /* Oops, null buffer; error out here */ |
9196dc11 | 1942 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 1943 | "hash finish null buffer\n"); |
9196dc11 | 1944 | sep_crypto_release(sctx, ta_ctx, (u32)-ENOMEM); |
ff3d9c3c MA |
1945 | return -ENOMEM; |
1946 | } | |
1947 | ||
1948 | max_length = (((SEP_HASH_RESULT_SIZE_WORDS * sizeof(u32)) + 3) / | |
1949 | sizeof(u32)) * sizeof(u32); | |
1950 | ||
9196dc11 MA |
1951 | sep_read_msg(ta_ctx, |
1952 | ta_ctx->current_hash_req->result, | |
ff3d9c3c MA |
1953 | crypto_ahash_digestsize(tfm), max_length, |
1954 | &msg_offset, 0); | |
1955 | ||
1956 | /* Signal to crypto infrastructure and clear out */ | |
9196dc11 MA |
1957 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "hash finish post op done\n"); |
1958 | sep_crypto_release(sctx, ta_ctx, 0); | |
ff3d9c3c MA |
1959 | return 0; |
1960 | } | |
1961 | ||
1962 | static u32 hash_digest_post_op(struct sep_device *sep) | |
1963 | { | |
1964 | int max_length; | |
1965 | u32 u32_error; | |
1966 | u32 msg_offset; | |
1967 | struct crypto_ahash *tfm = crypto_ahash_reqtfm(sep->current_hash_req); | |
1968 | struct sep_system_ctx *sctx = crypto_ahash_ctx(tfm); | |
9196dc11 MA |
1969 | struct this_task_ctx *ta_ctx = ahash_request_ctx(sep->current_hash_req); |
1970 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
ff3d9c3c MA |
1971 | "hash digest post op\n"); |
1972 | ||
ff3d9c3c | 1973 | /* first bring msg from shared area to local area */ |
9196dc11 | 1974 | memcpy(ta_ctx->msg, sep->shared_addr, |
ff3d9c3c MA |
1975 | SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES); |
1976 | ||
9196dc11 | 1977 | u32_error = sep_verify_op(ta_ctx, SEP_HASH_SINGLE_OPCODE, |
ff3d9c3c MA |
1978 | &msg_offset); |
1979 | ||
1980 | if (u32_error) { | |
9196dc11 | 1981 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
1982 | "hash digest finish error %x\n", u32_error); |
1983 | ||
9196dc11 | 1984 | sep_crypto_release(sctx, ta_ctx, u32_error); |
ff3d9c3c MA |
1985 | return u32_error; |
1986 | } | |
1987 | ||
1988 | /* Grab the result */ | |
9196dc11 | 1989 | if (ta_ctx->current_hash_req->result == NULL) { |
ff3d9c3c | 1990 | /* Oops, null buffer; error out here */ |
9196dc11 | 1991 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 1992 | "hash digest finish null buffer\n"); |
9196dc11 | 1993 | sep_crypto_release(sctx, ta_ctx, (u32)-ENOMEM); |
ff3d9c3c MA |
1994 | return -ENOMEM; |
1995 | } | |
1996 | ||
1997 | max_length = (((SEP_HASH_RESULT_SIZE_WORDS * sizeof(u32)) + 3) / | |
1998 | sizeof(u32)) * sizeof(u32); | |
1999 | ||
9196dc11 MA |
2000 | sep_read_msg(ta_ctx, |
2001 | ta_ctx->current_hash_req->result, | |
ff3d9c3c MA |
2002 | crypto_ahash_digestsize(tfm), max_length, |
2003 | &msg_offset, 0); | |
2004 | ||
2005 | /* Signal to crypto infrastructure and clear out */ | |
9196dc11 | 2006 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c MA |
2007 | "hash digest finish post op done\n"); |
2008 | ||
9196dc11 | 2009 | sep_crypto_release(sctx, ta_ctx, 0); |
ff3d9c3c MA |
2010 | return 0; |
2011 | } | |
2012 | ||
2013 | /** | |
2014 | * The sep_finish function is the function that is schedule (via tasket) | |
2015 | * by the interrupt service routine when the SEP sends and interrupt | |
2016 | * This is only called by the interrupt handler as a tasklet. | |
2017 | */ | |
2018 | static void sep_finish(unsigned long data) | |
2019 | { | |
ff3d9c3c MA |
2020 | struct sep_device *sep_dev; |
2021 | int res; | |
2022 | ||
2023 | res = 0; | |
2024 | ||
2025 | if (data == 0) { | |
2026 | pr_debug("sep_finish called with null data\n"); | |
2027 | return; | |
2028 | } | |
2029 | ||
2030 | sep_dev = (struct sep_device *)data; | |
2031 | if (sep_dev == NULL) { | |
2032 | pr_debug("sep_finish; sep_dev is NULL\n"); | |
2033 | return; | |
2034 | } | |
2035 | ||
ff3d9c3c | 2036 | if (sep_dev->in_kernel == (u32)0) { |
ff3d9c3c MA |
2037 | dev_warn(&sep_dev->pdev->dev, |
2038 | "sep_finish; not in kernel operation\n"); | |
2039 | return; | |
2040 | } | |
ff3d9c3c MA |
2041 | |
2042 | /* Did we really do a sep command prior to this? */ | |
2043 | if (0 == test_bit(SEP_LEGACY_SENDMSG_DONE_OFFSET, | |
9196dc11 | 2044 | &sep_dev->ta_ctx->call_status.status)) { |
ff3d9c3c MA |
2045 | |
2046 | dev_warn(&sep_dev->pdev->dev, "[PID%d] sendmsg not called\n", | |
2047 | current->pid); | |
2048 | return; | |
2049 | } | |
2050 | ||
2051 | if (sep_dev->send_ct != sep_dev->reply_ct) { | |
2052 | dev_warn(&sep_dev->pdev->dev, | |
2053 | "[PID%d] poll; no message came back\n", | |
2054 | current->pid); | |
2055 | return; | |
2056 | } | |
2057 | ||
2058 | /* Check for error (In case time ran out) */ | |
2059 | if ((res != 0x0) && (res != 0x8)) { | |
2060 | dev_warn(&sep_dev->pdev->dev, | |
2061 | "[PID%d] poll; poll error GPR3 is %x\n", | |
2062 | current->pid, res); | |
2063 | return; | |
2064 | } | |
2065 | ||
2066 | /* What kind of interrupt from sep was this? */ | |
2067 | res = sep_read_reg(sep_dev, HW_HOST_SEP_HOST_GPR2_REG_ADDR); | |
2068 | ||
2069 | dev_dbg(&sep_dev->pdev->dev, "[PID%d] GPR2 at crypto finish is %x\n", | |
2070 | current->pid, res); | |
2071 | ||
2072 | /* Print request? */ | |
2073 | if ((res >> 30) & 0x1) { | |
2074 | dev_dbg(&sep_dev->pdev->dev, "[PID%d] sep print req\n", | |
2075 | current->pid); | |
2076 | dev_dbg(&sep_dev->pdev->dev, "[PID%d] contents: %s\n", | |
2077 | current->pid, | |
2078 | (char *)(sep_dev->shared_addr + | |
2079 | SEP_DRIVER_PRINTF_OFFSET_IN_BYTES)); | |
2080 | return; | |
2081 | } | |
2082 | ||
2083 | /* Request for daemon (not currently in POR)? */ | |
2084 | if (res >> 31) { | |
2085 | dev_dbg(&sep_dev->pdev->dev, | |
2086 | "[PID%d] sep request; ignoring\n", | |
2087 | current->pid); | |
2088 | return; | |
2089 | } | |
2090 | ||
2091 | /* If we got here, then we have a replay to a sep command */ | |
2092 | ||
2093 | dev_dbg(&sep_dev->pdev->dev, | |
2094 | "[PID%d] sep reply to command; processing request: %x\n", | |
2095 | current->pid, sep_dev->current_request); | |
2096 | ||
2097 | switch (sep_dev->current_request) { | |
2098 | case AES_CBC: | |
2099 | case AES_ECB: | |
2100 | case DES_CBC: | |
2101 | case DES_ECB: | |
2102 | res = crypto_post_op(sep_dev); | |
2103 | break; | |
2104 | case SHA1: | |
2105 | case MD5: | |
2106 | case SHA224: | |
2107 | case SHA256: | |
2108 | switch (sep_dev->current_hash_stage) { | |
2109 | case HASH_INIT: | |
2110 | res = hash_init_post_op(sep_dev); | |
2111 | break; | |
2112 | case HASH_UPDATE: | |
9196dc11 | 2113 | case HASH_FINUP_DATA: |
ff3d9c3c MA |
2114 | res = hash_update_post_op(sep_dev); |
2115 | break; | |
9196dc11 | 2116 | case HASH_FINUP_FINISH: |
ff3d9c3c MA |
2117 | case HASH_FINISH: |
2118 | res = hash_final_post_op(sep_dev); | |
2119 | break; | |
2120 | case HASH_DIGEST: | |
2121 | res = hash_digest_post_op(sep_dev); | |
2122 | break; | |
2123 | default: | |
9196dc11 | 2124 | pr_debug("sep - invalid stage for hash finish\n"); |
ff3d9c3c MA |
2125 | } |
2126 | break; | |
2127 | default: | |
9196dc11 | 2128 | pr_debug("sep - invalid request for finish\n"); |
ff3d9c3c MA |
2129 | } |
2130 | ||
9196dc11 MA |
2131 | if (res) |
2132 | pr_debug("sep - finish returned error %x\n", res); | |
ff3d9c3c MA |
2133 | } |
2134 | ||
2135 | static int sep_hash_cra_init(struct crypto_tfm *tfm) | |
2136 | { | |
ff3d9c3c MA |
2137 | const char *alg_name = crypto_tfm_alg_name(tfm); |
2138 | ||
9196dc11 | 2139 | pr_debug("sep_hash_cra_init name is %s\n", alg_name); |
ff3d9c3c MA |
2140 | |
2141 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), | |
9196dc11 | 2142 | sizeof(struct this_task_ctx)); |
ff3d9c3c MA |
2143 | return 0; |
2144 | } | |
2145 | ||
2146 | static void sep_hash_cra_exit(struct crypto_tfm *tfm) | |
2147 | { | |
9196dc11 | 2148 | pr_debug("sep_hash_cra_exit\n"); |
ff3d9c3c MA |
2149 | } |
2150 | ||
2151 | static void sep_hash_init(void *data) | |
2152 | { | |
2153 | u32 msg_offset; | |
2154 | int result; | |
2155 | struct ahash_request *req; | |
2156 | struct crypto_ahash *tfm; | |
9196dc11 | 2157 | struct this_task_ctx *ta_ctx; |
ff3d9c3c | 2158 | struct sep_system_ctx *sctx; |
9196dc11 MA |
2159 | unsigned long end_time; |
2160 | int are_we_done_yet; | |
ff3d9c3c MA |
2161 | |
2162 | req = (struct ahash_request *)data; | |
2163 | tfm = crypto_ahash_reqtfm(req); | |
ff3d9c3c | 2164 | sctx = crypto_ahash_ctx(tfm); |
9196dc11 MA |
2165 | ta_ctx = ahash_request_ctx(req); |
2166 | ta_ctx->sep_used = sep_dev; | |
2167 | ||
2168 | ta_ctx->are_we_done_yet = &are_we_done_yet; | |
ff3d9c3c | 2169 | |
9196dc11 | 2170 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2171 | "sep_hash_init\n"); |
9196dc11 | 2172 | ta_ctx->current_hash_stage = HASH_INIT; |
ff3d9c3c | 2173 | /* opcode and mode */ |
9196dc11 MA |
2174 | sep_make_header(ta_ctx, &msg_offset, SEP_HASH_INIT_OPCODE); |
2175 | sep_write_msg(ta_ctx, &ta_ctx->hash_opmode, | |
ff3d9c3c | 2176 | sizeof(u32), sizeof(u32), &msg_offset, 0); |
9196dc11 | 2177 | sep_end_msg(ta_ctx, msg_offset); |
ff3d9c3c | 2178 | |
9196dc11 MA |
2179 | are_we_done_yet = 0; |
2180 | result = sep_crypto_take_sep(ta_ctx); | |
ff3d9c3c | 2181 | if (result) { |
9196dc11 | 2182 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2183 | "sep_hash_init take sep failed\n"); |
9196dc11 | 2184 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2185 | } |
2186 | ||
9196dc11 MA |
2187 | /* now we sit and wait up to a fixed time for completion */ |
2188 | end_time = jiffies + (WAIT_TIME * HZ); | |
2189 | while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0)) | |
ff3d9c3c MA |
2190 | schedule(); |
2191 | ||
9196dc11 MA |
2192 | /* Done waiting; still not done yet? */ |
2193 | if (are_we_done_yet == 0) { | |
2194 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
2195 | "hash init never got done\n"); | |
2196 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
2197 | return; | |
ff3d9c3c | 2198 | } |
9196dc11 | 2199 | |
ff3d9c3c MA |
2200 | } |
2201 | ||
2202 | static void sep_hash_update(void *data) | |
2203 | { | |
2204 | int int_error; | |
2205 | u32 msg_offset; | |
2206 | u32 len; | |
2207 | struct sep_hash_internal_context *int_ctx; | |
2208 | u32 block_size; | |
2209 | u32 head_len; | |
2210 | u32 tail_len; | |
9196dc11 MA |
2211 | int are_we_done_yet; |
2212 | ||
ff3d9c3c MA |
2213 | static u32 msg[10]; |
2214 | static char small_buf[100]; | |
2215 | void *src_ptr; | |
2216 | struct scatterlist *new_sg; | |
2217 | ssize_t copy_result; | |
2218 | struct ahash_request *req; | |
2219 | struct crypto_ahash *tfm; | |
9196dc11 | 2220 | struct this_task_ctx *ta_ctx; |
ff3d9c3c | 2221 | struct sep_system_ctx *sctx; |
9196dc11 | 2222 | unsigned long end_time; |
ff3d9c3c MA |
2223 | |
2224 | req = (struct ahash_request *)data; | |
2225 | tfm = crypto_ahash_reqtfm(req); | |
ff3d9c3c | 2226 | sctx = crypto_ahash_ctx(tfm); |
9196dc11 MA |
2227 | ta_ctx = ahash_request_ctx(req); |
2228 | ta_ctx->sep_used = sep_dev; | |
2229 | ||
2230 | ta_ctx->are_we_done_yet = &are_we_done_yet; | |
ff3d9c3c MA |
2231 | |
2232 | /* length for queue status */ | |
9196dc11 | 2233 | ta_ctx->nbytes = req->nbytes; |
ff3d9c3c | 2234 | |
9196dc11 | 2235 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2236 | "sep_hash_update\n"); |
9196dc11 | 2237 | ta_ctx->current_hash_stage = HASH_UPDATE; |
ff3d9c3c MA |
2238 | len = req->nbytes; |
2239 | ||
2240 | block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); | |
2241 | tail_len = req->nbytes % block_size; | |
9196dc11 MA |
2242 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "length is %x\n", len); |
2243 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "block_size is %x\n", block_size); | |
2244 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "tail len is %x\n", tail_len); | |
ff3d9c3c MA |
2245 | |
2246 | /* Compute header/tail sizes */ | |
9196dc11 | 2247 | int_ctx = (struct sep_hash_internal_context *)&sctx-> |
ff3d9c3c MA |
2248 | hash_private_ctx.internal_context; |
2249 | head_len = (block_size - int_ctx->prev_update_bytes) % block_size; | |
2250 | tail_len = (req->nbytes - head_len) % block_size; | |
2251 | ||
2252 | /* Make sure all pages are even block */ | |
9196dc11 | 2253 | int_error = sep_oddball_pages(ta_ctx->sep_used, req->src, |
ff3d9c3c MA |
2254 | req->nbytes, |
2255 | block_size, &new_sg, 1); | |
2256 | ||
2257 | if (int_error < 0) { | |
9196dc11 | 2258 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2259 | "oddball pages error in crash update\n"); |
9196dc11 | 2260 | sep_crypto_release(sctx, ta_ctx, -ENOMEM); |
ff3d9c3c MA |
2261 | return; |
2262 | } else if (int_error == 1) { | |
9196dc11 MA |
2263 | ta_ctx->src_sg = new_sg; |
2264 | ta_ctx->src_sg_hold = new_sg; | |
ff3d9c3c | 2265 | } else { |
9196dc11 MA |
2266 | ta_ctx->src_sg = req->src; |
2267 | ta_ctx->src_sg_hold = NULL; | |
ff3d9c3c MA |
2268 | } |
2269 | ||
9196dc11 | 2270 | src_ptr = sg_virt(ta_ctx->src_sg); |
ff3d9c3c | 2271 | |
9196dc11 | 2272 | if ((!req->nbytes) || (!ta_ctx->src_sg)) { |
ff3d9c3c MA |
2273 | /* null data */ |
2274 | src_ptr = NULL; | |
2275 | } | |
2276 | ||
9196dc11 | 2277 | sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg); |
ff3d9c3c | 2278 | |
9196dc11 MA |
2279 | ta_ctx->dcb_input_data.app_in_address = src_ptr; |
2280 | ta_ctx->dcb_input_data.data_in_size = | |
2281 | req->nbytes - (head_len + tail_len); | |
2282 | ta_ctx->dcb_input_data.app_out_address = NULL; | |
2283 | ta_ctx->dcb_input_data.block_size = block_size; | |
2284 | ta_ctx->dcb_input_data.tail_block_size = 0; | |
2285 | ta_ctx->dcb_input_data.is_applet = 0; | |
2286 | ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg; | |
2287 | ta_ctx->dcb_input_data.dst_sg = NULL; | |
ff3d9c3c MA |
2288 | |
2289 | int_error = sep_create_dcb_dmatables_context_kernel( | |
9196dc11 MA |
2290 | ta_ctx->sep_used, |
2291 | &ta_ctx->dcb_region, | |
2292 | &ta_ctx->dmatables_region, | |
2293 | &ta_ctx->dma_ctx, | |
2294 | &ta_ctx->dcb_input_data, | |
ff3d9c3c MA |
2295 | 1); |
2296 | if (int_error) { | |
9196dc11 | 2297 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2298 | "hash update dma table create failed\n"); |
9196dc11 | 2299 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2300 | return; |
2301 | } | |
2302 | ||
2303 | /* Construct message to SEP */ | |
9196dc11 | 2304 | sep_make_header(ta_ctx, &msg_offset, SEP_HASH_UPDATE_OPCODE); |
ff3d9c3c MA |
2305 | |
2306 | msg[0] = (u32)0; | |
2307 | msg[1] = (u32)0; | |
2308 | msg[2] = (u32)0; | |
2309 | ||
9196dc11 | 2310 | sep_write_msg(ta_ctx, msg, sizeof(u32) * 3, sizeof(u32) * 3, |
ff3d9c3c MA |
2311 | &msg_offset, 0); |
2312 | ||
2313 | /* Handle remainders */ | |
2314 | ||
2315 | /* Head */ | |
9196dc11 | 2316 | sep_write_msg(ta_ctx, &head_len, sizeof(u32), |
ff3d9c3c MA |
2317 | sizeof(u32), &msg_offset, 0); |
2318 | ||
2319 | if (head_len) { | |
2320 | copy_result = sg_copy_to_buffer( | |
2321 | req->src, | |
9196dc11 | 2322 | sep_sg_nents(ta_ctx->src_sg), |
ff3d9c3c MA |
2323 | small_buf, head_len); |
2324 | ||
2325 | if (copy_result != head_len) { | |
9196dc11 | 2326 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2327 | "sg head copy failure in hash block\n"); |
9196dc11 | 2328 | sep_crypto_release(sctx, ta_ctx, -ENOMEM); |
ff3d9c3c MA |
2329 | return; |
2330 | } | |
2331 | ||
9196dc11 | 2332 | sep_write_msg(ta_ctx, small_buf, head_len, |
ff3d9c3c MA |
2333 | sizeof(u32) * 32, &msg_offset, 1); |
2334 | } else { | |
2335 | msg_offset += sizeof(u32) * 32; | |
2336 | } | |
2337 | ||
2338 | /* Tail */ | |
9196dc11 | 2339 | sep_write_msg(ta_ctx, &tail_len, sizeof(u32), |
ff3d9c3c MA |
2340 | sizeof(u32), &msg_offset, 0); |
2341 | ||
2342 | if (tail_len) { | |
2343 | copy_result = sep_copy_offset_sg( | |
9196dc11 MA |
2344 | ta_ctx->sep_used, |
2345 | ta_ctx->src_sg, | |
ff3d9c3c MA |
2346 | req->nbytes - tail_len, |
2347 | small_buf, tail_len); | |
2348 | ||
2349 | if (copy_result != tail_len) { | |
9196dc11 | 2350 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2351 | "sg tail copy failure in hash block\n"); |
9196dc11 | 2352 | sep_crypto_release(sctx, ta_ctx, -ENOMEM); |
ff3d9c3c MA |
2353 | return; |
2354 | } | |
2355 | ||
9196dc11 | 2356 | sep_write_msg(ta_ctx, small_buf, tail_len, |
ff3d9c3c MA |
2357 | sizeof(u32) * 32, &msg_offset, 1); |
2358 | } else { | |
2359 | msg_offset += sizeof(u32) * 32; | |
2360 | } | |
2361 | ||
2362 | /* Context */ | |
9196dc11 | 2363 | sep_write_context(ta_ctx, &msg_offset, &sctx->hash_private_ctx, |
ff3d9c3c MA |
2364 | sizeof(struct sep_hash_private_context)); |
2365 | ||
9196dc11 MA |
2366 | sep_end_msg(ta_ctx, msg_offset); |
2367 | are_we_done_yet = 0; | |
2368 | int_error = sep_crypto_take_sep(ta_ctx); | |
ff3d9c3c | 2369 | if (int_error) { |
9196dc11 | 2370 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2371 | "sep_hash_update take sep failed\n"); |
9196dc11 | 2372 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2373 | } |
2374 | ||
9196dc11 MA |
2375 | /* now we sit and wait up to a fixed time for completion */ |
2376 | end_time = jiffies + (WAIT_TIME * HZ); | |
2377 | while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0)) | |
ff3d9c3c MA |
2378 | schedule(); |
2379 | ||
9196dc11 MA |
2380 | /* Done waiting; still not done yet? */ |
2381 | if (are_we_done_yet == 0) { | |
2382 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
2383 | "hash update never got done\n"); | |
2384 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
2385 | return; | |
ff3d9c3c | 2386 | } |
9196dc11 | 2387 | |
ff3d9c3c MA |
2388 | } |
2389 | ||
2390 | static void sep_hash_final(void *data) | |
2391 | { | |
2392 | u32 msg_offset; | |
2393 | struct ahash_request *req; | |
2394 | struct crypto_ahash *tfm; | |
9196dc11 | 2395 | struct this_task_ctx *ta_ctx; |
ff3d9c3c MA |
2396 | struct sep_system_ctx *sctx; |
2397 | int result; | |
9196dc11 MA |
2398 | unsigned long end_time; |
2399 | int are_we_done_yet; | |
ff3d9c3c MA |
2400 | |
2401 | req = (struct ahash_request *)data; | |
2402 | tfm = crypto_ahash_reqtfm(req); | |
ff3d9c3c | 2403 | sctx = crypto_ahash_ctx(tfm); |
9196dc11 MA |
2404 | ta_ctx = ahash_request_ctx(req); |
2405 | ta_ctx->sep_used = sep_dev; | |
ff3d9c3c | 2406 | |
9196dc11 | 2407 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2408 | "sep_hash_final\n"); |
9196dc11 MA |
2409 | ta_ctx->current_hash_stage = HASH_FINISH; |
2410 | ||
2411 | ta_ctx->are_we_done_yet = &are_we_done_yet; | |
ff3d9c3c MA |
2412 | |
2413 | /* opcode and mode */ | |
9196dc11 | 2414 | sep_make_header(ta_ctx, &msg_offset, SEP_HASH_FINISH_OPCODE); |
ff3d9c3c MA |
2415 | |
2416 | /* Context */ | |
9196dc11 | 2417 | sep_write_context(ta_ctx, &msg_offset, &sctx->hash_private_ctx, |
ff3d9c3c MA |
2418 | sizeof(struct sep_hash_private_context)); |
2419 | ||
9196dc11 MA |
2420 | sep_end_msg(ta_ctx, msg_offset); |
2421 | are_we_done_yet = 0; | |
2422 | result = sep_crypto_take_sep(ta_ctx); | |
ff3d9c3c | 2423 | if (result) { |
9196dc11 | 2424 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2425 | "sep_hash_final take sep failed\n"); |
9196dc11 | 2426 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2427 | } |
2428 | ||
9196dc11 MA |
2429 | /* now we sit and wait up to a fixed time for completion */ |
2430 | end_time = jiffies + (WAIT_TIME * HZ); | |
2431 | while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0)) | |
ff3d9c3c MA |
2432 | schedule(); |
2433 | ||
9196dc11 MA |
2434 | /* Done waiting; still not done yet? */ |
2435 | if (are_we_done_yet == 0) { | |
2436 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
2437 | "hash final job never got done\n"); | |
2438 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
2439 | return; | |
ff3d9c3c | 2440 | } |
9196dc11 | 2441 | |
ff3d9c3c MA |
2442 | } |
2443 | ||
2444 | static void sep_hash_digest(void *data) | |
2445 | { | |
2446 | int int_error; | |
2447 | u32 msg_offset; | |
2448 | u32 block_size; | |
2449 | u32 msg[10]; | |
2450 | size_t copy_result; | |
2451 | int result; | |
9196dc11 | 2452 | int are_we_done_yet; |
ff3d9c3c MA |
2453 | u32 tail_len; |
2454 | static char small_buf[100]; | |
2455 | struct scatterlist *new_sg; | |
2456 | void *src_ptr; | |
2457 | ||
2458 | struct ahash_request *req; | |
2459 | struct crypto_ahash *tfm; | |
9196dc11 | 2460 | struct this_task_ctx *ta_ctx; |
ff3d9c3c | 2461 | struct sep_system_ctx *sctx; |
9196dc11 | 2462 | unsigned long end_time; |
ff3d9c3c MA |
2463 | |
2464 | req = (struct ahash_request *)data; | |
2465 | tfm = crypto_ahash_reqtfm(req); | |
ff3d9c3c | 2466 | sctx = crypto_ahash_ctx(tfm); |
9196dc11 MA |
2467 | ta_ctx = ahash_request_ctx(req); |
2468 | ta_ctx->sep_used = sep_dev; | |
ff3d9c3c | 2469 | |
9196dc11 | 2470 | dev_dbg(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2471 | "sep_hash_digest\n"); |
9196dc11 MA |
2472 | ta_ctx->current_hash_stage = HASH_DIGEST; |
2473 | ||
2474 | ta_ctx->are_we_done_yet = &are_we_done_yet; | |
ff3d9c3c MA |
2475 | |
2476 | /* length for queue status */ | |
9196dc11 | 2477 | ta_ctx->nbytes = req->nbytes; |
ff3d9c3c MA |
2478 | |
2479 | block_size = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); | |
2480 | tail_len = req->nbytes % block_size; | |
9196dc11 MA |
2481 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "length is %x\n", req->nbytes); |
2482 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "block_size is %x\n", block_size); | |
2483 | dev_dbg(&ta_ctx->sep_used->pdev->dev, "tail len is %x\n", tail_len); | |
ff3d9c3c MA |
2484 | |
2485 | /* Make sure all pages are even block */ | |
9196dc11 | 2486 | int_error = sep_oddball_pages(ta_ctx->sep_used, req->src, |
ff3d9c3c MA |
2487 | req->nbytes, |
2488 | block_size, &new_sg, 1); | |
2489 | ||
2490 | if (int_error < 0) { | |
9196dc11 | 2491 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2492 | "oddball pages error in crash update\n"); |
9196dc11 | 2493 | sep_crypto_release(sctx, ta_ctx, -ENOMEM); |
ff3d9c3c MA |
2494 | return; |
2495 | } else if (int_error == 1) { | |
9196dc11 MA |
2496 | ta_ctx->src_sg = new_sg; |
2497 | ta_ctx->src_sg_hold = new_sg; | |
ff3d9c3c | 2498 | } else { |
9196dc11 MA |
2499 | ta_ctx->src_sg = req->src; |
2500 | ta_ctx->src_sg_hold = NULL; | |
ff3d9c3c MA |
2501 | } |
2502 | ||
9196dc11 | 2503 | src_ptr = sg_virt(ta_ctx->src_sg); |
ff3d9c3c | 2504 | |
9196dc11 | 2505 | if ((!req->nbytes) || (!ta_ctx->src_sg)) { |
ff3d9c3c MA |
2506 | /* null data */ |
2507 | src_ptr = NULL; | |
2508 | } | |
2509 | ||
9196dc11 | 2510 | sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg); |
ff3d9c3c | 2511 | |
9196dc11 MA |
2512 | ta_ctx->dcb_input_data.app_in_address = src_ptr; |
2513 | ta_ctx->dcb_input_data.data_in_size = req->nbytes - tail_len; | |
2514 | ta_ctx->dcb_input_data.app_out_address = NULL; | |
2515 | ta_ctx->dcb_input_data.block_size = block_size; | |
2516 | ta_ctx->dcb_input_data.tail_block_size = 0; | |
2517 | ta_ctx->dcb_input_data.is_applet = 0; | |
2518 | ta_ctx->dcb_input_data.src_sg = ta_ctx->src_sg; | |
2519 | ta_ctx->dcb_input_data.dst_sg = NULL; | |
ff3d9c3c MA |
2520 | |
2521 | int_error = sep_create_dcb_dmatables_context_kernel( | |
9196dc11 MA |
2522 | ta_ctx->sep_used, |
2523 | &ta_ctx->dcb_region, | |
2524 | &ta_ctx->dmatables_region, | |
2525 | &ta_ctx->dma_ctx, | |
2526 | &ta_ctx->dcb_input_data, | |
ff3d9c3c MA |
2527 | 1); |
2528 | if (int_error) { | |
9196dc11 | 2529 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2530 | "hash update dma table create failed\n"); |
9196dc11 | 2531 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2532 | return; |
2533 | } | |
2534 | ||
2535 | /* Construct message to SEP */ | |
9196dc11 MA |
2536 | sep_make_header(ta_ctx, &msg_offset, SEP_HASH_SINGLE_OPCODE); |
2537 | sep_write_msg(ta_ctx, &ta_ctx->hash_opmode, | |
ff3d9c3c MA |
2538 | sizeof(u32), sizeof(u32), &msg_offset, 0); |
2539 | ||
2540 | msg[0] = (u32)0; | |
2541 | msg[1] = (u32)0; | |
2542 | msg[2] = (u32)0; | |
2543 | ||
9196dc11 | 2544 | sep_write_msg(ta_ctx, msg, sizeof(u32) * 3, sizeof(u32) * 3, |
ff3d9c3c MA |
2545 | &msg_offset, 0); |
2546 | ||
2547 | /* Tail */ | |
9196dc11 | 2548 | sep_write_msg(ta_ctx, &tail_len, sizeof(u32), |
ff3d9c3c MA |
2549 | sizeof(u32), &msg_offset, 0); |
2550 | ||
2551 | if (tail_len) { | |
2552 | copy_result = sep_copy_offset_sg( | |
9196dc11 MA |
2553 | ta_ctx->sep_used, |
2554 | ta_ctx->src_sg, | |
ff3d9c3c MA |
2555 | req->nbytes - tail_len, |
2556 | small_buf, tail_len); | |
2557 | ||
2558 | if (copy_result != tail_len) { | |
9196dc11 | 2559 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2560 | "sg tail copy failure in hash block\n"); |
9196dc11 | 2561 | sep_crypto_release(sctx, ta_ctx, -ENOMEM); |
ff3d9c3c MA |
2562 | return; |
2563 | } | |
2564 | ||
9196dc11 | 2565 | sep_write_msg(ta_ctx, small_buf, tail_len, |
ff3d9c3c MA |
2566 | sizeof(u32) * 32, &msg_offset, 1); |
2567 | } else { | |
2568 | msg_offset += sizeof(u32) * 32; | |
2569 | } | |
2570 | ||
9196dc11 | 2571 | sep_end_msg(ta_ctx, msg_offset); |
ff3d9c3c | 2572 | |
9196dc11 MA |
2573 | are_we_done_yet = 0; |
2574 | result = sep_crypto_take_sep(ta_ctx); | |
ff3d9c3c | 2575 | if (result) { |
9196dc11 | 2576 | dev_warn(&ta_ctx->sep_used->pdev->dev, |
ff3d9c3c | 2577 | "sep_hash_digest take sep failed\n"); |
9196dc11 | 2578 | sep_crypto_release(sctx, ta_ctx, -EINVAL); |
ff3d9c3c MA |
2579 | } |
2580 | ||
9196dc11 MA |
2581 | /* now we sit and wait up to a fixed time for completion */ |
2582 | end_time = jiffies + (WAIT_TIME * HZ); | |
2583 | while ((time_before(jiffies, end_time)) && (are_we_done_yet == 0)) | |
ff3d9c3c MA |
2584 | schedule(); |
2585 | ||
9196dc11 MA |
2586 | /* Done waiting; still not done yet? */ |
2587 | if (are_we_done_yet == 0) { | |
2588 | dev_dbg(&ta_ctx->sep_used->pdev->dev, | |
2589 | "hash digest job never got done\n"); | |
2590 | sep_crypto_release(sctx, ta_ctx, -EINVAL); | |
2591 | return; | |
ff3d9c3c | 2592 | } |
9196dc11 | 2593 | |
ff3d9c3c MA |
2594 | } |
2595 | ||
2596 | /** | |
2597 | * This is what is called by each of the API's provided | |
2598 | * in the kernel crypto descriptors. It is run in a process | |
2599 | * context using the kernel workqueues. Therefore it can | |
2600 | * be put to sleep. | |
2601 | */ | |
2602 | static void sep_dequeuer(void *data) | |
2603 | { | |
2604 | struct crypto_queue *this_queue; | |
2605 | struct crypto_async_request *async_req; | |
2606 | struct crypto_async_request *backlog; | |
2607 | struct ablkcipher_request *cypher_req; | |
2608 | struct ahash_request *hash_req; | |
2609 | struct sep_system_ctx *sctx; | |
2610 | struct crypto_ahash *hash_tfm; | |
9196dc11 | 2611 | struct this_task_ctx *ta_ctx; |
ff3d9c3c MA |
2612 | |
2613 | ||
2614 | this_queue = (struct crypto_queue *)data; | |
2615 | ||
2616 | spin_lock_irq(&queue_lock); | |
2617 | backlog = crypto_get_backlog(this_queue); | |
2618 | async_req = crypto_dequeue_request(this_queue); | |
2619 | spin_unlock_irq(&queue_lock); | |
2620 | ||
2621 | if (!async_req) { | |
2622 | pr_debug("sep crypto queue is empty\n"); | |
2623 | return; | |
2624 | } | |
2625 | ||
2626 | if (backlog) { | |
2627 | pr_debug("sep crypto backlog set\n"); | |
2628 | if (backlog->complete) | |
2629 | backlog->complete(backlog, -EINPROGRESS); | |
2630 | backlog = NULL; | |
2631 | } | |
2632 | ||
2633 | if (!async_req->tfm) { | |
2634 | pr_debug("sep crypto queue null tfm\n"); | |
2635 | return; | |
2636 | } | |
2637 | ||
2638 | if (!async_req->tfm->__crt_alg) { | |
2639 | pr_debug("sep crypto queue null __crt_alg\n"); | |
2640 | return; | |
2641 | } | |
2642 | ||
2643 | if (!async_req->tfm->__crt_alg->cra_type) { | |
2644 | pr_debug("sep crypto queue null cra_type\n"); | |
2645 | return; | |
2646 | } | |
2647 | ||
2648 | /* we have stuff in the queue */ | |
2649 | if (async_req->tfm->__crt_alg->cra_type != | |
2650 | &crypto_ahash_type) { | |
2651 | /* This is for a cypher */ | |
2652 | pr_debug("sep crypto queue doing cipher\n"); | |
2653 | cypher_req = container_of(async_req, | |
2654 | struct ablkcipher_request, | |
2655 | base); | |
2656 | if (!cypher_req) { | |
2657 | pr_debug("sep crypto queue null cypher_req\n"); | |
2658 | return; | |
2659 | } | |
2660 | ||
2661 | sep_crypto_block((void *)cypher_req); | |
2662 | return; | |
2663 | } else { | |
2664 | /* This is a hash */ | |
2665 | pr_debug("sep crypto queue doing hash\n"); | |
2666 | /** | |
2667 | * This is a bit more complex than cipher; we | |
2668 | * need to figure out what type of operation | |
2669 | */ | |
2670 | hash_req = ahash_request_cast(async_req); | |
2671 | if (!hash_req) { | |
2672 | pr_debug("sep crypto queue null hash_req\n"); | |
2673 | return; | |
2674 | } | |
2675 | ||
2676 | hash_tfm = crypto_ahash_reqtfm(hash_req); | |
2677 | if (!hash_tfm) { | |
2678 | pr_debug("sep crypto queue null hash_tfm\n"); | |
2679 | return; | |
2680 | } | |
2681 | ||
2682 | ||
2683 | sctx = crypto_ahash_ctx(hash_tfm); | |
2684 | if (!sctx) { | |
2685 | pr_debug("sep crypto queue null sctx\n"); | |
2686 | return; | |
2687 | } | |
2688 | ||
9196dc11 MA |
2689 | ta_ctx = ahash_request_ctx(hash_req); |
2690 | ||
2691 | if (ta_ctx->current_hash_stage == HASH_INIT) { | |
ff3d9c3c MA |
2692 | pr_debug("sep crypto queue hash init\n"); |
2693 | sep_hash_init((void *)hash_req); | |
2694 | return; | |
9196dc11 | 2695 | } else if (ta_ctx->current_hash_stage == HASH_UPDATE) { |
ff3d9c3c MA |
2696 | pr_debug("sep crypto queue hash update\n"); |
2697 | sep_hash_update((void *)hash_req); | |
2698 | return; | |
9196dc11 | 2699 | } else if (ta_ctx->current_hash_stage == HASH_FINISH) { |
ff3d9c3c MA |
2700 | pr_debug("sep crypto queue hash final\n"); |
2701 | sep_hash_final((void *)hash_req); | |
2702 | return; | |
9196dc11 | 2703 | } else if (ta_ctx->current_hash_stage == HASH_DIGEST) { |
ff3d9c3c MA |
2704 | pr_debug("sep crypto queue hash digest\n"); |
2705 | sep_hash_digest((void *)hash_req); | |
2706 | return; | |
9196dc11 MA |
2707 | } else if (ta_ctx->current_hash_stage == HASH_FINUP_DATA) { |
2708 | pr_debug("sep crypto queue hash digest\n"); | |
2709 | sep_hash_update((void *)hash_req); | |
2710 | return; | |
2711 | } else if (ta_ctx->current_hash_stage == HASH_FINUP_FINISH) { | |
2712 | pr_debug("sep crypto queue hash digest\n"); | |
2713 | sep_hash_final((void *)hash_req); | |
2714 | return; | |
ff3d9c3c MA |
2715 | } else { |
2716 | pr_debug("sep crypto queue hash oops nothing\n"); | |
2717 | return; | |
2718 | } | |
2719 | } | |
2720 | } | |
2721 | ||
2722 | static int sep_sha1_init(struct ahash_request *req) | |
2723 | { | |
2724 | int error; | |
9196dc11 MA |
2725 | int error1; |
2726 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2727 | ||
2728 | pr_debug("sep - doing sha1 init\n"); | |
ff3d9c3c | 2729 | |
9196dc11 MA |
2730 | /* Clear out task context */ |
2731 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 2732 | |
9196dc11 MA |
2733 | ta_ctx->sep_used = sep_dev; |
2734 | ta_ctx->current_request = SHA1; | |
2735 | ta_ctx->current_hash_req = req; | |
2736 | ta_ctx->current_cypher_req = NULL; | |
2737 | ta_ctx->hash_opmode = SEP_HASH_SHA1; | |
2738 | ta_ctx->current_hash_stage = HASH_INIT; | |
2739 | ||
2740 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2741 | spin_lock_irq(&queue_lock); |
2742 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2743 | |
9196dc11 MA |
2744 | if ((error != 0) && (error != -EINPROGRESS)) |
2745 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2746 | error); | |
2747 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2748 | sep_dequeuer, (void *)&sep_queue); | |
2749 | if (error1) | |
2750 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2751 | error1); | |
2752 | spin_unlock_irq(&queue_lock); | |
2753 | /* We return result of crypto enqueue */ | |
2754 | return error; | |
ff3d9c3c MA |
2755 | } |
2756 | ||
2757 | static int sep_sha1_update(struct ahash_request *req) | |
2758 | { | |
2759 | int error; | |
9196dc11 MA |
2760 | int error1; |
2761 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
ff3d9c3c | 2762 | |
9196dc11 | 2763 | pr_debug("sep - doing sha1 update\n"); |
ff3d9c3c | 2764 | |
9196dc11 MA |
2765 | ta_ctx->sep_used = sep_dev; |
2766 | ta_ctx->current_request = SHA1; | |
2767 | ta_ctx->current_hash_req = req; | |
2768 | ta_ctx->current_cypher_req = NULL; | |
2769 | ta_ctx->hash_opmode = SEP_HASH_SHA1; | |
2770 | ta_ctx->current_hash_stage = HASH_UPDATE; | |
2771 | ||
2772 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2773 | spin_lock_irq(&queue_lock); |
2774 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2775 | |
9196dc11 MA |
2776 | if ((error != 0) && (error != -EINPROGRESS)) |
2777 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2778 | error); | |
2779 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2780 | sep_dequeuer, (void *)&sep_queue); | |
2781 | if (error1) | |
2782 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2783 | error1); | |
2784 | spin_unlock_irq(&queue_lock); | |
2785 | /* We return result of crypto enqueue */ | |
2786 | return error; | |
ff3d9c3c MA |
2787 | } |
2788 | ||
2789 | static int sep_sha1_final(struct ahash_request *req) | |
2790 | { | |
2791 | int error; | |
9196dc11 MA |
2792 | int error1; |
2793 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2794 | pr_debug("sep - doing sha1 final\n"); | |
2795 | ||
2796 | ta_ctx->sep_used = sep_dev; | |
2797 | ta_ctx->current_request = SHA1; | |
2798 | ta_ctx->current_hash_req = req; | |
2799 | ta_ctx->current_cypher_req = NULL; | |
2800 | ta_ctx->hash_opmode = SEP_HASH_SHA1; | |
2801 | ta_ctx->current_hash_stage = HASH_FINISH; | |
2802 | ||
2803 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2804 | spin_lock_irq(&queue_lock); |
2805 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2806 | |
9196dc11 MA |
2807 | if ((error != 0) && (error != -EINPROGRESS)) |
2808 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2809 | error); | |
2810 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2811 | sep_dequeuer, (void *)&sep_queue); | |
2812 | if (error1) | |
2813 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2814 | error1); | |
2815 | spin_unlock_irq(&queue_lock); | |
2816 | /* We return result of crypto enqueue */ | |
2817 | return error; | |
ff3d9c3c MA |
2818 | } |
2819 | ||
2820 | static int sep_sha1_digest(struct ahash_request *req) | |
2821 | { | |
2822 | int error; | |
9196dc11 MA |
2823 | int error1; |
2824 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2825 | pr_debug("sep - doing sha1 digest\n"); | |
ff3d9c3c | 2826 | |
9196dc11 MA |
2827 | /* Clear out task context */ |
2828 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 2829 | |
9196dc11 MA |
2830 | ta_ctx->sep_used = sep_dev; |
2831 | ta_ctx->current_request = SHA1; | |
2832 | ta_ctx->current_hash_req = req; | |
2833 | ta_ctx->current_cypher_req = NULL; | |
2834 | ta_ctx->hash_opmode = SEP_HASH_SHA1; | |
2835 | ta_ctx->current_hash_stage = HASH_DIGEST; | |
2836 | ||
2837 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2838 | spin_lock_irq(&queue_lock); |
2839 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2840 | |
9196dc11 MA |
2841 | if ((error != 0) && (error != -EINPROGRESS)) |
2842 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2843 | error); | |
2844 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2845 | sep_dequeuer, (void *)&sep_queue); | |
2846 | if (error1) | |
2847 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2848 | error1); | |
2849 | spin_unlock_irq(&queue_lock); | |
2850 | /* We return result of crypto enqueue */ | |
2851 | return error; | |
2852 | } | |
ff3d9c3c | 2853 | |
9196dc11 MA |
2854 | static int sep_sha1_finup(struct ahash_request *req) |
2855 | { | |
2856 | int error; | |
2857 | int error1; | |
2858 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2859 | pr_debug("sep - doing sha1 finup\n"); | |
2860 | ||
2861 | ta_ctx->sep_used = sep_dev; | |
2862 | ta_ctx->current_request = SHA1; | |
2863 | ta_ctx->current_hash_req = req; | |
2864 | ta_ctx->current_cypher_req = NULL; | |
2865 | ta_ctx->hash_opmode = SEP_HASH_SHA1; | |
2866 | ta_ctx->current_hash_stage = HASH_FINUP_DATA; | |
2867 | ||
2868 | /* lock necessary so that only one entity touches the queues */ | |
2869 | spin_lock_irq(&queue_lock); | |
2870 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2871 | |
9196dc11 MA |
2872 | if ((error != 0) && (error != -EINPROGRESS)) |
2873 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2874 | error); | |
2875 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2876 | sep_dequeuer, (void *)&sep_queue); | |
2877 | if (error1) | |
2878 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2879 | error1); | |
2880 | spin_unlock_irq(&queue_lock); | |
2881 | /* We return result of crypto enqueue */ | |
2882 | return error; | |
ff3d9c3c MA |
2883 | } |
2884 | ||
2885 | static int sep_md5_init(struct ahash_request *req) | |
2886 | { | |
2887 | int error; | |
9196dc11 MA |
2888 | int error1; |
2889 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2890 | pr_debug("sep - doing md5 init\n"); | |
2891 | ||
2892 | /* Clear out task context */ | |
2893 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 2894 | |
9196dc11 MA |
2895 | ta_ctx->sep_used = sep_dev; |
2896 | ta_ctx->current_request = MD5; | |
2897 | ta_ctx->current_hash_req = req; | |
2898 | ta_ctx->current_cypher_req = NULL; | |
2899 | ta_ctx->hash_opmode = SEP_HASH_MD5; | |
2900 | ta_ctx->current_hash_stage = HASH_INIT; | |
ff3d9c3c | 2901 | |
9196dc11 | 2902 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
2903 | spin_lock_irq(&queue_lock); |
2904 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2905 | |
9196dc11 MA |
2906 | if ((error != 0) && (error != -EINPROGRESS)) |
2907 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2908 | error); | |
2909 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2910 | sep_dequeuer, (void *)&sep_queue); | |
2911 | if (error1) | |
2912 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2913 | error1); | |
2914 | spin_unlock_irq(&queue_lock); | |
2915 | /* We return result of crypto enqueue */ | |
2916 | return error; | |
ff3d9c3c MA |
2917 | } |
2918 | ||
2919 | static int sep_md5_update(struct ahash_request *req) | |
2920 | { | |
2921 | int error; | |
9196dc11 MA |
2922 | int error1; |
2923 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2924 | pr_debug("sep - doing md5 update\n"); | |
2925 | ||
2926 | ta_ctx->sep_used = sep_dev; | |
2927 | ta_ctx->current_request = MD5; | |
2928 | ta_ctx->current_hash_req = req; | |
2929 | ta_ctx->current_cypher_req = NULL; | |
2930 | ta_ctx->hash_opmode = SEP_HASH_MD5; | |
2931 | ta_ctx->current_hash_stage = HASH_UPDATE; | |
2932 | ||
2933 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2934 | spin_lock_irq(&queue_lock); |
2935 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2936 | |
9196dc11 MA |
2937 | if ((error != 0) && (error != -EINPROGRESS)) |
2938 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2939 | error); | |
2940 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2941 | sep_dequeuer, (void *)&sep_queue); | |
2942 | if (error1) | |
2943 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2944 | error1); | |
2945 | spin_unlock_irq(&queue_lock); | |
2946 | /* We return result of crypto enqueue */ | |
2947 | return error; | |
ff3d9c3c MA |
2948 | } |
2949 | ||
2950 | static int sep_md5_final(struct ahash_request *req) | |
2951 | { | |
2952 | int error; | |
9196dc11 MA |
2953 | int error1; |
2954 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
2955 | pr_debug("sep - doing md5 final\n"); | |
2956 | ||
2957 | ta_ctx->sep_used = sep_dev; | |
2958 | ta_ctx->current_request = MD5; | |
2959 | ta_ctx->current_hash_req = req; | |
2960 | ta_ctx->current_cypher_req = NULL; | |
2961 | ta_ctx->hash_opmode = SEP_HASH_MD5; | |
2962 | ta_ctx->current_hash_stage = HASH_FINISH; | |
2963 | ||
2964 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
2965 | spin_lock_irq(&queue_lock); |
2966 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 2967 | |
9196dc11 MA |
2968 | if ((error != 0) && (error != -EINPROGRESS)) |
2969 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
2970 | error); | |
2971 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
2972 | sep_dequeuer, (void *)&sep_queue); | |
2973 | if (error1) | |
2974 | pr_debug(" sep - workqueue submit failed: %x\n", | |
2975 | error1); | |
2976 | spin_unlock_irq(&queue_lock); | |
2977 | /* We return result of crypto enqueue */ | |
2978 | return error; | |
ff3d9c3c MA |
2979 | } |
2980 | ||
2981 | static int sep_md5_digest(struct ahash_request *req) | |
2982 | { | |
2983 | int error; | |
9196dc11 MA |
2984 | int error1; |
2985 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
ff3d9c3c | 2986 | |
9196dc11 | 2987 | pr_debug("sep - doing md5 digest\n"); |
ff3d9c3c | 2988 | |
9196dc11 MA |
2989 | /* Clear out task context */ |
2990 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
2991 | ||
2992 | ta_ctx->sep_used = sep_dev; | |
2993 | ta_ctx->current_request = MD5; | |
2994 | ta_ctx->current_hash_req = req; | |
2995 | ta_ctx->current_cypher_req = NULL; | |
2996 | ta_ctx->hash_opmode = SEP_HASH_MD5; | |
2997 | ta_ctx->current_hash_stage = HASH_DIGEST; | |
2998 | ||
2999 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3000 | spin_lock_irq(&queue_lock); |
3001 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3002 | |
9196dc11 MA |
3003 | if ((error != 0) && (error != -EINPROGRESS)) |
3004 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3005 | error); | |
3006 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3007 | sep_dequeuer, (void *)&sep_queue); | |
3008 | if (error1) | |
3009 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3010 | error1); | |
3011 | spin_unlock_irq(&queue_lock); | |
3012 | /* We return result of crypto enqueue */ | |
3013 | return error; | |
ff3d9c3c MA |
3014 | } |
3015 | ||
9196dc11 | 3016 | static int sep_md5_finup(struct ahash_request *req) |
ff3d9c3c MA |
3017 | { |
3018 | int error; | |
9196dc11 MA |
3019 | int error1; |
3020 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3021 | ||
3022 | pr_debug("sep - doing md5 finup\n"); | |
ff3d9c3c | 3023 | |
9196dc11 MA |
3024 | ta_ctx->sep_used = sep_dev; |
3025 | ta_ctx->current_request = MD5; | |
3026 | ta_ctx->current_hash_req = req; | |
3027 | ta_ctx->current_cypher_req = NULL; | |
3028 | ta_ctx->hash_opmode = SEP_HASH_MD5; | |
3029 | ta_ctx->current_hash_stage = HASH_FINUP_DATA; | |
ff3d9c3c | 3030 | |
9196dc11 | 3031 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3032 | spin_lock_irq(&queue_lock); |
3033 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3034 | |
9196dc11 MA |
3035 | if ((error != 0) && (error != -EINPROGRESS)) |
3036 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3037 | error); | |
3038 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3039 | sep_dequeuer, (void *)&sep_queue); | |
3040 | if (error1) | |
3041 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3042 | error1); | |
3043 | spin_unlock_irq(&queue_lock); | |
3044 | /* We return result of crypto enqueue */ | |
3045 | return error; | |
ff3d9c3c MA |
3046 | } |
3047 | ||
9196dc11 | 3048 | static int sep_sha224_init(struct ahash_request *req) |
ff3d9c3c MA |
3049 | { |
3050 | int error; | |
9196dc11 MA |
3051 | int error1; |
3052 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3053 | pr_debug("sep - doing sha224 init\n"); | |
3054 | ||
3055 | /* Clear out task context */ | |
3056 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3057 | |
9196dc11 MA |
3058 | ta_ctx->sep_used = sep_dev; |
3059 | ta_ctx->current_request = SHA224; | |
3060 | ta_ctx->current_hash_req = req; | |
3061 | ta_ctx->current_cypher_req = NULL; | |
3062 | ta_ctx->hash_opmode = SEP_HASH_SHA224; | |
3063 | ta_ctx->current_hash_stage = HASH_INIT; | |
ff3d9c3c | 3064 | |
9196dc11 | 3065 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3066 | spin_lock_irq(&queue_lock); |
3067 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
9196dc11 MA |
3068 | |
3069 | if ((error != 0) && (error != -EINPROGRESS)) | |
3070 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3071 | error); | |
3072 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3073 | sep_dequeuer, (void *)&sep_queue); | |
3074 | if (error1) | |
3075 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3076 | error1); | |
ff3d9c3c | 3077 | spin_unlock_irq(&queue_lock); |
9196dc11 MA |
3078 | /* We return result of crypto enqueue */ |
3079 | return error; | |
3080 | } | |
ff3d9c3c | 3081 | |
9196dc11 MA |
3082 | static int sep_sha224_update(struct ahash_request *req) |
3083 | { | |
3084 | int error; | |
3085 | int error1; | |
3086 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3087 | pr_debug("sep - doing sha224 update\n"); | |
3088 | ||
3089 | ta_ctx->sep_used = sep_dev; | |
3090 | ta_ctx->current_request = SHA224; | |
3091 | ta_ctx->current_hash_req = req; | |
3092 | ta_ctx->current_cypher_req = NULL; | |
3093 | ta_ctx->hash_opmode = SEP_HASH_SHA224; | |
3094 | ta_ctx->current_hash_stage = HASH_UPDATE; | |
3095 | ||
3096 | /* lock necessary so that only one entity touches the queues */ | |
3097 | spin_lock_irq(&queue_lock); | |
3098 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3099 | |
9196dc11 MA |
3100 | if ((error != 0) && (error != -EINPROGRESS)) |
3101 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3102 | error); | |
3103 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3104 | sep_dequeuer, (void *)&sep_queue); | |
3105 | if (error1) | |
3106 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3107 | error1); | |
3108 | spin_unlock_irq(&queue_lock); | |
3109 | /* We return result of crypto enqueue */ | |
3110 | return error; | |
ff3d9c3c MA |
3111 | } |
3112 | ||
3113 | static int sep_sha224_final(struct ahash_request *req) | |
3114 | { | |
3115 | int error; | |
9196dc11 MA |
3116 | int error1; |
3117 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3118 | pr_debug("sep - doing sha224 final\n"); | |
3119 | ||
3120 | ta_ctx->sep_used = sep_dev; | |
3121 | ta_ctx->current_request = SHA224; | |
3122 | ta_ctx->current_hash_req = req; | |
3123 | ta_ctx->current_cypher_req = NULL; | |
3124 | ta_ctx->hash_opmode = SEP_HASH_SHA224; | |
3125 | ta_ctx->current_hash_stage = HASH_FINISH; | |
3126 | ||
3127 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3128 | spin_lock_irq(&queue_lock); |
3129 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3130 | |
9196dc11 MA |
3131 | if ((error != 0) && (error != -EINPROGRESS)) |
3132 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3133 | error); | |
3134 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3135 | sep_dequeuer, (void *)&sep_queue); | |
3136 | if (error1) | |
3137 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3138 | error1); | |
3139 | spin_unlock_irq(&queue_lock); | |
3140 | /* We return result of crypto enqueue */ | |
3141 | return error; | |
ff3d9c3c MA |
3142 | } |
3143 | ||
3144 | static int sep_sha224_digest(struct ahash_request *req) | |
3145 | { | |
3146 | int error; | |
9196dc11 MA |
3147 | int error1; |
3148 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3149 | ||
3150 | pr_debug("sep - doing sha224 digest\n"); | |
ff3d9c3c | 3151 | |
9196dc11 MA |
3152 | /* Clear out task context */ |
3153 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3154 | |
9196dc11 MA |
3155 | ta_ctx->sep_used = sep_dev; |
3156 | ta_ctx->current_request = SHA224; | |
3157 | ta_ctx->current_hash_req = req; | |
3158 | ta_ctx->current_cypher_req = NULL; | |
3159 | ta_ctx->hash_opmode = SEP_HASH_SHA224; | |
3160 | ta_ctx->current_hash_stage = HASH_DIGEST; | |
3161 | ||
3162 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3163 | spin_lock_irq(&queue_lock); |
3164 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3165 | |
9196dc11 MA |
3166 | if ((error != 0) && (error != -EINPROGRESS)) |
3167 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3168 | error); | |
3169 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3170 | sep_dequeuer, (void *)&sep_queue); | |
3171 | if (error1) | |
3172 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3173 | error1); | |
3174 | spin_unlock_irq(&queue_lock); | |
3175 | /* We return result of crypto enqueue */ | |
3176 | return error; | |
ff3d9c3c MA |
3177 | } |
3178 | ||
9196dc11 | 3179 | static int sep_sha224_finup(struct ahash_request *req) |
ff3d9c3c MA |
3180 | { |
3181 | int error; | |
9196dc11 MA |
3182 | int error1; |
3183 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3184 | ||
3185 | pr_debug("sep - doing sha224 finup\n"); | |
ff3d9c3c | 3186 | |
9196dc11 MA |
3187 | ta_ctx->sep_used = sep_dev; |
3188 | ta_ctx->current_request = SHA224; | |
3189 | ta_ctx->current_hash_req = req; | |
3190 | ta_ctx->current_cypher_req = NULL; | |
3191 | ta_ctx->hash_opmode = SEP_HASH_SHA224; | |
3192 | ta_ctx->current_hash_stage = HASH_FINUP_DATA; | |
ff3d9c3c | 3193 | |
9196dc11 | 3194 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3195 | spin_lock_irq(&queue_lock); |
3196 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3197 | |
9196dc11 MA |
3198 | if ((error != 0) && (error != -EINPROGRESS)) |
3199 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3200 | error); | |
3201 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3202 | sep_dequeuer, (void *)&sep_queue); | |
3203 | if (error1) | |
3204 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3205 | error1); | |
3206 | spin_unlock_irq(&queue_lock); | |
3207 | /* We return result of crypto enqueue */ | |
3208 | return error; | |
ff3d9c3c MA |
3209 | } |
3210 | ||
9196dc11 | 3211 | static int sep_sha256_init(struct ahash_request *req) |
ff3d9c3c MA |
3212 | { |
3213 | int error; | |
9196dc11 MA |
3214 | int error1; |
3215 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3216 | pr_debug("sep - doing sha256 init\n"); | |
3217 | ||
3218 | /* Clear out task context */ | |
3219 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3220 | |
9196dc11 MA |
3221 | ta_ctx->sep_used = sep_dev; |
3222 | ta_ctx->current_request = SHA256; | |
3223 | ta_ctx->current_hash_req = req; | |
3224 | ta_ctx->current_cypher_req = NULL; | |
3225 | ta_ctx->hash_opmode = SEP_HASH_SHA256; | |
3226 | ta_ctx->current_hash_stage = HASH_INIT; | |
ff3d9c3c | 3227 | |
9196dc11 | 3228 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3229 | spin_lock_irq(&queue_lock); |
3230 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
9196dc11 MA |
3231 | |
3232 | if ((error != 0) && (error != -EINPROGRESS)) | |
3233 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3234 | error); | |
3235 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3236 | sep_dequeuer, (void *)&sep_queue); | |
3237 | if (error1) | |
3238 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3239 | error1); | |
ff3d9c3c | 3240 | spin_unlock_irq(&queue_lock); |
9196dc11 MA |
3241 | /* We return result of crypto enqueue */ |
3242 | return error; | |
3243 | } | |
ff3d9c3c | 3244 | |
9196dc11 MA |
3245 | static int sep_sha256_update(struct ahash_request *req) |
3246 | { | |
3247 | int error; | |
3248 | int error1; | |
3249 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3250 | pr_debug("sep - doing sha256 update\n"); | |
3251 | ||
3252 | ta_ctx->sep_used = sep_dev; | |
3253 | ta_ctx->current_request = SHA256; | |
3254 | ta_ctx->current_hash_req = req; | |
3255 | ta_ctx->current_cypher_req = NULL; | |
3256 | ta_ctx->hash_opmode = SEP_HASH_SHA256; | |
3257 | ta_ctx->current_hash_stage = HASH_UPDATE; | |
3258 | ||
3259 | /* lock necessary so that only one entity touches the queues */ | |
3260 | spin_lock_irq(&queue_lock); | |
3261 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3262 | |
9196dc11 MA |
3263 | if ((error != 0) && (error != -EINPROGRESS)) |
3264 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3265 | error); | |
3266 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3267 | sep_dequeuer, (void *)&sep_queue); | |
3268 | if (error1) | |
3269 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3270 | error1); | |
3271 | spin_unlock_irq(&queue_lock); | |
3272 | /* We return result of crypto enqueue */ | |
3273 | return error; | |
ff3d9c3c MA |
3274 | } |
3275 | ||
3276 | static int sep_sha256_final(struct ahash_request *req) | |
3277 | { | |
3278 | int error; | |
9196dc11 MA |
3279 | int error1; |
3280 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3281 | pr_debug("sep - doing sha256 final\n"); | |
3282 | ||
3283 | ta_ctx->sep_used = sep_dev; | |
3284 | ta_ctx->current_request = SHA256; | |
3285 | ta_ctx->current_hash_req = req; | |
3286 | ta_ctx->current_cypher_req = NULL; | |
3287 | ta_ctx->hash_opmode = SEP_HASH_SHA256; | |
3288 | ta_ctx->current_hash_stage = HASH_FINISH; | |
3289 | ||
3290 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3291 | spin_lock_irq(&queue_lock); |
3292 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3293 | |
9196dc11 MA |
3294 | if ((error != 0) && (error != -EINPROGRESS)) |
3295 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3296 | error); | |
3297 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3298 | sep_dequeuer, (void *)&sep_queue); | |
3299 | if (error1) | |
3300 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3301 | error1); | |
3302 | spin_unlock_irq(&queue_lock); | |
3303 | /* We return result of crypto enqueue */ | |
3304 | return error; | |
ff3d9c3c MA |
3305 | } |
3306 | ||
3307 | static int sep_sha256_digest(struct ahash_request *req) | |
3308 | { | |
3309 | int error; | |
9196dc11 MA |
3310 | int error1; |
3311 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
3312 | ||
3313 | pr_debug("sep - doing sha256 digest\n"); | |
3314 | ||
3315 | /* Clear out task context */ | |
3316 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3317 | |
9196dc11 MA |
3318 | ta_ctx->sep_used = sep_dev; |
3319 | ta_ctx->current_request = SHA256; | |
3320 | ta_ctx->current_hash_req = req; | |
3321 | ta_ctx->current_cypher_req = NULL; | |
3322 | ta_ctx->hash_opmode = SEP_HASH_SHA256; | |
3323 | ta_ctx->current_hash_stage = HASH_DIGEST; | |
ff3d9c3c | 3324 | |
9196dc11 | 3325 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3326 | spin_lock_irq(&queue_lock); |
3327 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
9196dc11 MA |
3328 | |
3329 | if ((error != 0) && (error != -EINPROGRESS)) | |
3330 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3331 | error); | |
3332 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3333 | sep_dequeuer, (void *)&sep_queue); | |
3334 | if (error1) | |
3335 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3336 | error1); | |
ff3d9c3c | 3337 | spin_unlock_irq(&queue_lock); |
9196dc11 MA |
3338 | /* We return result of crypto enqueue */ |
3339 | return error; | |
3340 | } | |
ff3d9c3c | 3341 | |
9196dc11 MA |
3342 | static int sep_sha256_finup(struct ahash_request *req) |
3343 | { | |
3344 | int error; | |
3345 | int error1; | |
3346 | struct this_task_ctx *ta_ctx = ahash_request_ctx(req); | |
ff3d9c3c | 3347 | |
9196dc11 MA |
3348 | pr_debug("sep - doing sha256 finup\n"); |
3349 | ||
3350 | ta_ctx->sep_used = sep_dev; | |
3351 | ta_ctx->current_request = SHA256; | |
3352 | ta_ctx->current_hash_req = req; | |
3353 | ta_ctx->current_cypher_req = NULL; | |
3354 | ta_ctx->hash_opmode = SEP_HASH_SHA256; | |
3355 | ta_ctx->current_hash_stage = HASH_FINUP_DATA; | |
3356 | ||
3357 | /* lock necessary so that only one entity touches the queues */ | |
3358 | spin_lock_irq(&queue_lock); | |
3359 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
3360 | ||
3361 | if ((error != 0) && (error != -EINPROGRESS)) | |
3362 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3363 | error); | |
3364 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3365 | sep_dequeuer, (void *)&sep_queue); | |
3366 | if (error1) | |
3367 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3368 | error1); | |
3369 | spin_unlock_irq(&queue_lock); | |
3370 | /* We return result of crypto enqueue */ | |
3371 | return error; | |
ff3d9c3c MA |
3372 | } |
3373 | ||
3374 | static int sep_crypto_init(struct crypto_tfm *tfm) | |
3375 | { | |
ff3d9c3c MA |
3376 | const char *alg_name = crypto_tfm_alg_name(tfm); |
3377 | ||
ff3d9c3c | 3378 | if (alg_name == NULL) |
9196dc11 | 3379 | pr_debug("sep_crypto_init alg is NULL\n"); |
ff3d9c3c | 3380 | else |
9196dc11 | 3381 | pr_debug("sep_crypto_init alg is %s\n", alg_name); |
ff3d9c3c | 3382 | |
9196dc11 | 3383 | tfm->crt_ablkcipher.reqsize = sizeof(struct this_task_ctx); |
ff3d9c3c MA |
3384 | return 0; |
3385 | } | |
3386 | ||
3387 | static void sep_crypto_exit(struct crypto_tfm *tfm) | |
3388 | { | |
9196dc11 | 3389 | pr_debug("sep_crypto_exit\n"); |
ff3d9c3c MA |
3390 | } |
3391 | ||
3392 | static int sep_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, | |
3393 | unsigned int keylen) | |
3394 | { | |
3395 | struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(tfm); | |
3396 | ||
9196dc11 | 3397 | pr_debug("sep aes setkey\n"); |
ff3d9c3c | 3398 | |
9196dc11 | 3399 | pr_debug("tfm is %p sctx is %p\n", tfm, sctx); |
ff3d9c3c MA |
3400 | switch (keylen) { |
3401 | case SEP_AES_KEY_128_SIZE: | |
3402 | sctx->aes_key_size = AES_128; | |
3403 | break; | |
3404 | case SEP_AES_KEY_192_SIZE: | |
3405 | sctx->aes_key_size = AES_192; | |
3406 | break; | |
3407 | case SEP_AES_KEY_256_SIZE: | |
3408 | sctx->aes_key_size = AES_256; | |
3409 | break; | |
3410 | case SEP_AES_KEY_512_SIZE: | |
3411 | sctx->aes_key_size = AES_512; | |
3412 | break; | |
3413 | default: | |
9196dc11 | 3414 | pr_debug("invalid sep aes key size %x\n", |
ff3d9c3c MA |
3415 | keylen); |
3416 | return -EINVAL; | |
3417 | } | |
3418 | ||
3419 | memset(&sctx->key.aes, 0, sizeof(u32) * | |
3420 | SEP_AES_MAX_KEY_SIZE_WORDS); | |
3421 | memcpy(&sctx->key.aes, key, keylen); | |
3422 | sctx->keylen = keylen; | |
3423 | /* Indicate to encrypt/decrypt function to send key to SEP */ | |
3424 | sctx->key_sent = 0; | |
ff3d9c3c MA |
3425 | |
3426 | return 0; | |
3427 | } | |
3428 | ||
3429 | static int sep_aes_ecb_encrypt(struct ablkcipher_request *req) | |
3430 | { | |
3431 | int error; | |
9196dc11 MA |
3432 | int error1; |
3433 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3434 | ||
3435 | pr_debug("sep - doing aes ecb encrypt\n"); | |
ff3d9c3c | 3436 | |
9196dc11 MA |
3437 | /* Clear out task context */ |
3438 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3439 | |
9196dc11 MA |
3440 | ta_ctx->sep_used = sep_dev; |
3441 | ta_ctx->current_request = AES_ECB; | |
3442 | ta_ctx->current_hash_req = NULL; | |
3443 | ta_ctx->current_cypher_req = req; | |
3444 | ta_ctx->aes_encmode = SEP_AES_ENCRYPT; | |
3445 | ta_ctx->aes_opmode = SEP_AES_ECB; | |
3446 | ta_ctx->init_opcode = SEP_AES_INIT_OPCODE; | |
3447 | ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE; | |
3448 | ||
3449 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3450 | spin_lock_irq(&queue_lock); |
3451 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3452 | |
9196dc11 MA |
3453 | if ((error != 0) && (error != -EINPROGRESS)) |
3454 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3455 | error); | |
3456 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3457 | sep_dequeuer, (void *)&sep_queue); | |
3458 | if (error1) | |
3459 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3460 | error1); | |
3461 | spin_unlock_irq(&queue_lock); | |
3462 | /* We return result of crypto enqueue */ | |
3463 | return error; | |
ff3d9c3c MA |
3464 | } |
3465 | ||
3466 | static int sep_aes_ecb_decrypt(struct ablkcipher_request *req) | |
3467 | { | |
3468 | int error; | |
9196dc11 MA |
3469 | int error1; |
3470 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3471 | ||
3472 | pr_debug("sep - doing aes ecb decrypt\n"); | |
ff3d9c3c | 3473 | |
9196dc11 MA |
3474 | /* Clear out task context */ |
3475 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3476 | |
9196dc11 MA |
3477 | ta_ctx->sep_used = sep_dev; |
3478 | ta_ctx->current_request = AES_ECB; | |
3479 | ta_ctx->current_hash_req = NULL; | |
3480 | ta_ctx->current_cypher_req = req; | |
3481 | ta_ctx->aes_encmode = SEP_AES_DECRYPT; | |
3482 | ta_ctx->aes_opmode = SEP_AES_ECB; | |
3483 | ta_ctx->init_opcode = SEP_AES_INIT_OPCODE; | |
3484 | ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE; | |
3485 | ||
3486 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3487 | spin_lock_irq(&queue_lock); |
3488 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3489 | |
9196dc11 MA |
3490 | if ((error != 0) && (error != -EINPROGRESS)) |
3491 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3492 | error); | |
3493 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3494 | sep_dequeuer, (void *)&sep_queue); | |
3495 | if (error1) | |
3496 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3497 | error1); | |
3498 | spin_unlock_irq(&queue_lock); | |
3499 | /* We return result of crypto enqueue */ | |
3500 | return error; | |
ff3d9c3c MA |
3501 | } |
3502 | ||
3503 | static int sep_aes_cbc_encrypt(struct ablkcipher_request *req) | |
3504 | { | |
3505 | int error; | |
9196dc11 MA |
3506 | int error1; |
3507 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
ff3d9c3c MA |
3508 | struct sep_system_ctx *sctx = crypto_ablkcipher_ctx( |
3509 | crypto_ablkcipher_reqtfm(req)); | |
3510 | ||
9196dc11 MA |
3511 | pr_debug("sep - doing aes cbc encrypt\n"); |
3512 | ||
3513 | /* Clear out task context */ | |
3514 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
3515 | ||
3516 | pr_debug("tfm is %p sctx is %p and ta_ctx is %p\n", | |
3517 | crypto_ablkcipher_reqtfm(req), sctx, ta_ctx); | |
3518 | ||
3519 | ta_ctx->sep_used = sep_dev; | |
3520 | ta_ctx->current_request = AES_CBC; | |
3521 | ta_ctx->current_hash_req = NULL; | |
3522 | ta_ctx->current_cypher_req = req; | |
3523 | ta_ctx->aes_encmode = SEP_AES_ENCRYPT; | |
3524 | ta_ctx->aes_opmode = SEP_AES_CBC; | |
3525 | ta_ctx->init_opcode = SEP_AES_INIT_OPCODE; | |
3526 | ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE; | |
ff3d9c3c | 3527 | |
9196dc11 | 3528 | /* lock necessary so that only one entity touches the queues */ |
ff3d9c3c MA |
3529 | spin_lock_irq(&queue_lock); |
3530 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3531 | |
9196dc11 MA |
3532 | if ((error != 0) && (error != -EINPROGRESS)) |
3533 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3534 | error); | |
3535 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3536 | sep_dequeuer, (void *)&sep_queue); | |
3537 | if (error1) | |
3538 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3539 | error1); | |
3540 | spin_unlock_irq(&queue_lock); | |
3541 | /* We return result of crypto enqueue */ | |
3542 | return error; | |
ff3d9c3c MA |
3543 | } |
3544 | ||
3545 | static int sep_aes_cbc_decrypt(struct ablkcipher_request *req) | |
3546 | { | |
3547 | int error; | |
9196dc11 MA |
3548 | int error1; |
3549 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
ff3d9c3c MA |
3550 | struct sep_system_ctx *sctx = crypto_ablkcipher_ctx( |
3551 | crypto_ablkcipher_reqtfm(req)); | |
3552 | ||
9196dc11 MA |
3553 | pr_debug("sep - doing aes cbc decrypt\n"); |
3554 | ||
3555 | pr_debug("tfm is %p sctx is %p and ta_ctx is %p\n", | |
3556 | crypto_ablkcipher_reqtfm(req), sctx, ta_ctx); | |
ff3d9c3c | 3557 | |
9196dc11 MA |
3558 | /* Clear out task context */ |
3559 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
3560 | ||
3561 | ta_ctx->sep_used = sep_dev; | |
3562 | ta_ctx->current_request = AES_CBC; | |
3563 | ta_ctx->current_hash_req = NULL; | |
3564 | ta_ctx->current_cypher_req = req; | |
3565 | ta_ctx->aes_encmode = SEP_AES_DECRYPT; | |
3566 | ta_ctx->aes_opmode = SEP_AES_CBC; | |
3567 | ta_ctx->init_opcode = SEP_AES_INIT_OPCODE; | |
3568 | ta_ctx->block_opcode = SEP_AES_BLOCK_OPCODE; | |
3569 | ||
3570 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3571 | spin_lock_irq(&queue_lock); |
3572 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3573 | |
9196dc11 MA |
3574 | if ((error != 0) && (error != -EINPROGRESS)) |
3575 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3576 | error); | |
3577 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3578 | sep_dequeuer, (void *)&sep_queue); | |
3579 | if (error1) | |
3580 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3581 | error1); | |
3582 | spin_unlock_irq(&queue_lock); | |
3583 | /* We return result of crypto enqueue */ | |
3584 | return error; | |
ff3d9c3c MA |
3585 | } |
3586 | ||
3587 | static int sep_des_setkey(struct crypto_ablkcipher *tfm, const u8 *key, | |
3588 | unsigned int keylen) | |
3589 | { | |
3590 | struct sep_system_ctx *sctx = crypto_ablkcipher_ctx(tfm); | |
3591 | struct crypto_tfm *ctfm = crypto_ablkcipher_tfm(tfm); | |
3592 | u32 *flags = &ctfm->crt_flags; | |
3593 | ||
9196dc11 | 3594 | pr_debug("sep des setkey\n"); |
ff3d9c3c MA |
3595 | |
3596 | switch (keylen) { | |
3597 | case DES_KEY_SIZE: | |
3598 | sctx->des_nbr_keys = DES_KEY_1; | |
3599 | break; | |
3600 | case DES_KEY_SIZE * 2: | |
3601 | sctx->des_nbr_keys = DES_KEY_2; | |
3602 | break; | |
3603 | case DES_KEY_SIZE * 3: | |
3604 | sctx->des_nbr_keys = DES_KEY_3; | |
3605 | break; | |
3606 | default: | |
9196dc11 | 3607 | pr_debug("invalid key size %x\n", |
ff3d9c3c MA |
3608 | keylen); |
3609 | return -EINVAL; | |
3610 | } | |
3611 | ||
3612 | if ((*flags & CRYPTO_TFM_REQ_WEAK_KEY) && | |
3613 | (sep_weak_key(key, keylen))) { | |
3614 | ||
3615 | *flags |= CRYPTO_TFM_RES_WEAK_KEY; | |
9196dc11 | 3616 | pr_debug("weak key\n"); |
ff3d9c3c MA |
3617 | return -EINVAL; |
3618 | } | |
3619 | ||
3620 | memset(&sctx->key.des, 0, sizeof(struct sep_des_key)); | |
3621 | memcpy(&sctx->key.des.key1, key, keylen); | |
3622 | sctx->keylen = keylen; | |
3623 | /* Indicate to encrypt/decrypt function to send key to SEP */ | |
3624 | sctx->key_sent = 0; | |
ff3d9c3c MA |
3625 | |
3626 | return 0; | |
3627 | } | |
3628 | ||
3629 | static int sep_des_ebc_encrypt(struct ablkcipher_request *req) | |
3630 | { | |
3631 | int error; | |
9196dc11 MA |
3632 | int error1; |
3633 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3634 | ||
3635 | pr_debug("sep - doing des ecb encrypt\n"); | |
ff3d9c3c | 3636 | |
9196dc11 MA |
3637 | /* Clear out task context */ |
3638 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3639 | |
9196dc11 MA |
3640 | ta_ctx->sep_used = sep_dev; |
3641 | ta_ctx->current_request = DES_ECB; | |
3642 | ta_ctx->current_hash_req = NULL; | |
3643 | ta_ctx->current_cypher_req = req; | |
3644 | ta_ctx->des_encmode = SEP_DES_ENCRYPT; | |
3645 | ta_ctx->des_opmode = SEP_DES_ECB; | |
3646 | ta_ctx->init_opcode = SEP_DES_INIT_OPCODE; | |
3647 | ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE; | |
3648 | ||
3649 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3650 | spin_lock_irq(&queue_lock); |
3651 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3652 | |
9196dc11 MA |
3653 | if ((error != 0) && (error != -EINPROGRESS)) |
3654 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3655 | error); | |
3656 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3657 | sep_dequeuer, (void *)&sep_queue); | |
3658 | if (error1) | |
3659 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3660 | error1); | |
3661 | spin_unlock_irq(&queue_lock); | |
3662 | /* We return result of crypto enqueue */ | |
3663 | return error; | |
ff3d9c3c MA |
3664 | } |
3665 | ||
3666 | static int sep_des_ebc_decrypt(struct ablkcipher_request *req) | |
3667 | { | |
3668 | int error; | |
9196dc11 MA |
3669 | int error1; |
3670 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3671 | ||
3672 | pr_debug("sep - doing des ecb decrypt\n"); | |
ff3d9c3c | 3673 | |
9196dc11 MA |
3674 | /* Clear out task context */ |
3675 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3676 | |
9196dc11 MA |
3677 | ta_ctx->sep_used = sep_dev; |
3678 | ta_ctx->current_request = DES_ECB; | |
3679 | ta_ctx->current_hash_req = NULL; | |
3680 | ta_ctx->current_cypher_req = req; | |
3681 | ta_ctx->des_encmode = SEP_DES_DECRYPT; | |
3682 | ta_ctx->des_opmode = SEP_DES_ECB; | |
3683 | ta_ctx->init_opcode = SEP_DES_INIT_OPCODE; | |
3684 | ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE; | |
3685 | ||
3686 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3687 | spin_lock_irq(&queue_lock); |
3688 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3689 | |
9196dc11 MA |
3690 | if ((error != 0) && (error != -EINPROGRESS)) |
3691 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3692 | error); | |
3693 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3694 | sep_dequeuer, (void *)&sep_queue); | |
3695 | if (error1) | |
3696 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3697 | error1); | |
3698 | spin_unlock_irq(&queue_lock); | |
3699 | /* We return result of crypto enqueue */ | |
3700 | return error; | |
ff3d9c3c MA |
3701 | } |
3702 | ||
3703 | static int sep_des_cbc_encrypt(struct ablkcipher_request *req) | |
3704 | { | |
3705 | int error; | |
9196dc11 MA |
3706 | int error1; |
3707 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3708 | ||
3709 | pr_debug("sep - doing des cbc encrypt\n"); | |
ff3d9c3c | 3710 | |
9196dc11 MA |
3711 | /* Clear out task context */ |
3712 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3713 | |
9196dc11 MA |
3714 | ta_ctx->sep_used = sep_dev; |
3715 | ta_ctx->current_request = DES_CBC; | |
3716 | ta_ctx->current_hash_req = NULL; | |
3717 | ta_ctx->current_cypher_req = req; | |
3718 | ta_ctx->des_encmode = SEP_DES_ENCRYPT; | |
3719 | ta_ctx->des_opmode = SEP_DES_CBC; | |
3720 | ta_ctx->init_opcode = SEP_DES_INIT_OPCODE; | |
3721 | ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE; | |
3722 | ||
3723 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3724 | spin_lock_irq(&queue_lock); |
3725 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3726 | |
9196dc11 MA |
3727 | if ((error != 0) && (error != -EINPROGRESS)) |
3728 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3729 | error); | |
3730 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3731 | sep_dequeuer, (void *)&sep_queue); | |
3732 | if (error1) | |
3733 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3734 | error1); | |
3735 | spin_unlock_irq(&queue_lock); | |
3736 | /* We return result of crypto enqueue */ | |
3737 | return error; | |
ff3d9c3c MA |
3738 | } |
3739 | ||
3740 | static int sep_des_cbc_decrypt(struct ablkcipher_request *req) | |
3741 | { | |
3742 | int error; | |
9196dc11 MA |
3743 | int error1; |
3744 | struct this_task_ctx *ta_ctx = ablkcipher_request_ctx(req); | |
3745 | ||
3746 | pr_debug("sep - doing des ecb decrypt\n"); | |
ff3d9c3c | 3747 | |
9196dc11 MA |
3748 | /* Clear out task context */ |
3749 | memset(ta_ctx, 0, sizeof(struct this_task_ctx)); | |
ff3d9c3c | 3750 | |
9196dc11 MA |
3751 | ta_ctx->sep_used = sep_dev; |
3752 | ta_ctx->current_request = DES_CBC; | |
3753 | ta_ctx->current_hash_req = NULL; | |
3754 | ta_ctx->current_cypher_req = req; | |
3755 | ta_ctx->des_encmode = SEP_DES_DECRYPT; | |
3756 | ta_ctx->des_opmode = SEP_DES_CBC; | |
3757 | ta_ctx->init_opcode = SEP_DES_INIT_OPCODE; | |
3758 | ta_ctx->block_opcode = SEP_DES_BLOCK_OPCODE; | |
3759 | ||
3760 | /* lock necessary so that only one entity touches the queues */ | |
ff3d9c3c MA |
3761 | spin_lock_irq(&queue_lock); |
3762 | error = crypto_enqueue_request(&sep_queue, &req->base); | |
ff3d9c3c | 3763 | |
9196dc11 MA |
3764 | if ((error != 0) && (error != -EINPROGRESS)) |
3765 | pr_debug(" sep - crypto enqueue failed: %x\n", | |
3766 | error); | |
3767 | error1 = sep_submit_work(ta_ctx->sep_used->workqueue, | |
3768 | sep_dequeuer, (void *)&sep_queue); | |
3769 | if (error1) | |
3770 | pr_debug(" sep - workqueue submit failed: %x\n", | |
3771 | error1); | |
3772 | spin_unlock_irq(&queue_lock); | |
3773 | /* We return result of crypto enqueue */ | |
3774 | return error; | |
ff3d9c3c MA |
3775 | } |
3776 | ||
3777 | static struct ahash_alg hash_algs[] = { | |
3778 | { | |
3779 | .init = sep_sha1_init, | |
3780 | .update = sep_sha1_update, | |
3781 | .final = sep_sha1_final, | |
3782 | .digest = sep_sha1_digest, | |
9196dc11 | 3783 | .finup = sep_sha1_finup, |
ff3d9c3c MA |
3784 | .halg = { |
3785 | .digestsize = SHA1_DIGEST_SIZE, | |
3786 | .base = { | |
3787 | .cra_name = "sha1", | |
3788 | .cra_driver_name = "sha1-sep", | |
3789 | .cra_priority = 100, | |
3790 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | | |
3791 | CRYPTO_ALG_ASYNC, | |
3792 | .cra_blocksize = SHA1_BLOCK_SIZE, | |
3793 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3794 | .cra_alignmask = 0, | |
3795 | .cra_module = THIS_MODULE, | |
3796 | .cra_init = sep_hash_cra_init, | |
3797 | .cra_exit = sep_hash_cra_exit, | |
3798 | } | |
3799 | } | |
3800 | }, | |
3801 | { | |
3802 | .init = sep_md5_init, | |
3803 | .update = sep_md5_update, | |
3804 | .final = sep_md5_final, | |
3805 | .digest = sep_md5_digest, | |
9196dc11 | 3806 | .finup = sep_md5_finup, |
ff3d9c3c MA |
3807 | .halg = { |
3808 | .digestsize = MD5_DIGEST_SIZE, | |
3809 | .base = { | |
3810 | .cra_name = "md5", | |
3811 | .cra_driver_name = "md5-sep", | |
3812 | .cra_priority = 100, | |
3813 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | | |
3814 | CRYPTO_ALG_ASYNC, | |
3815 | .cra_blocksize = SHA1_BLOCK_SIZE, | |
3816 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3817 | .cra_alignmask = 0, | |
3818 | .cra_module = THIS_MODULE, | |
3819 | .cra_init = sep_hash_cra_init, | |
3820 | .cra_exit = sep_hash_cra_exit, | |
3821 | } | |
3822 | } | |
3823 | }, | |
3824 | { | |
3825 | .init = sep_sha224_init, | |
3826 | .update = sep_sha224_update, | |
3827 | .final = sep_sha224_final, | |
3828 | .digest = sep_sha224_digest, | |
9196dc11 | 3829 | .finup = sep_sha224_finup, |
ff3d9c3c MA |
3830 | .halg = { |
3831 | .digestsize = SHA224_DIGEST_SIZE, | |
3832 | .base = { | |
3833 | .cra_name = "sha224", | |
3834 | .cra_driver_name = "sha224-sep", | |
3835 | .cra_priority = 100, | |
3836 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | | |
3837 | CRYPTO_ALG_ASYNC, | |
3838 | .cra_blocksize = SHA224_BLOCK_SIZE, | |
3839 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3840 | .cra_alignmask = 0, | |
3841 | .cra_module = THIS_MODULE, | |
3842 | .cra_init = sep_hash_cra_init, | |
3843 | .cra_exit = sep_hash_cra_exit, | |
3844 | } | |
3845 | } | |
3846 | }, | |
3847 | { | |
3848 | .init = sep_sha256_init, | |
3849 | .update = sep_sha256_update, | |
3850 | .final = sep_sha256_final, | |
3851 | .digest = sep_sha256_digest, | |
9196dc11 | 3852 | .finup = sep_sha256_finup, |
ff3d9c3c MA |
3853 | .halg = { |
3854 | .digestsize = SHA256_DIGEST_SIZE, | |
3855 | .base = { | |
3856 | .cra_name = "sha256", | |
3857 | .cra_driver_name = "sha256-sep", | |
3858 | .cra_priority = 100, | |
3859 | .cra_flags = CRYPTO_ALG_TYPE_AHASH | | |
3860 | CRYPTO_ALG_ASYNC, | |
3861 | .cra_blocksize = SHA256_BLOCK_SIZE, | |
3862 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3863 | .cra_alignmask = 0, | |
3864 | .cra_module = THIS_MODULE, | |
3865 | .cra_init = sep_hash_cra_init, | |
3866 | .cra_exit = sep_hash_cra_exit, | |
3867 | } | |
3868 | } | |
3869 | } | |
3870 | }; | |
3871 | ||
3872 | static struct crypto_alg crypto_algs[] = { | |
3873 | { | |
3874 | .cra_name = "ecb(aes)", | |
3875 | .cra_driver_name = "ecb-aes-sep", | |
3876 | .cra_priority = 100, | |
3877 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3878 | .cra_blocksize = AES_BLOCK_SIZE, | |
3879 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3880 | .cra_alignmask = 0, | |
3881 | .cra_type = &crypto_ablkcipher_type, | |
3882 | .cra_module = THIS_MODULE, | |
3883 | .cra_init = sep_crypto_init, | |
3884 | .cra_exit = sep_crypto_exit, | |
3885 | .cra_u.ablkcipher = { | |
3886 | .min_keysize = AES_MIN_KEY_SIZE, | |
3887 | .max_keysize = AES_MAX_KEY_SIZE, | |
3888 | .setkey = sep_aes_setkey, | |
3889 | .encrypt = sep_aes_ecb_encrypt, | |
3890 | .decrypt = sep_aes_ecb_decrypt, | |
3891 | } | |
3892 | }, | |
3893 | { | |
3894 | .cra_name = "cbc(aes)", | |
3895 | .cra_driver_name = "cbc-aes-sep", | |
3896 | .cra_priority = 100, | |
3897 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3898 | .cra_blocksize = AES_BLOCK_SIZE, | |
3899 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3900 | .cra_alignmask = 0, | |
3901 | .cra_type = &crypto_ablkcipher_type, | |
3902 | .cra_module = THIS_MODULE, | |
3903 | .cra_init = sep_crypto_init, | |
3904 | .cra_exit = sep_crypto_exit, | |
3905 | .cra_u.ablkcipher = { | |
3906 | .min_keysize = AES_MIN_KEY_SIZE, | |
3907 | .max_keysize = AES_MAX_KEY_SIZE, | |
3908 | .setkey = sep_aes_setkey, | |
3909 | .encrypt = sep_aes_cbc_encrypt, | |
9196dc11 | 3910 | .ivsize = AES_BLOCK_SIZE, |
ff3d9c3c MA |
3911 | .decrypt = sep_aes_cbc_decrypt, |
3912 | } | |
3913 | }, | |
3914 | { | |
3915 | .cra_name = "ebc(des)", | |
3916 | .cra_driver_name = "ebc-des-sep", | |
3917 | .cra_priority = 100, | |
3918 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3919 | .cra_blocksize = DES_BLOCK_SIZE, | |
3920 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3921 | .cra_alignmask = 0, | |
3922 | .cra_type = &crypto_ablkcipher_type, | |
3923 | .cra_module = THIS_MODULE, | |
3924 | .cra_init = sep_crypto_init, | |
3925 | .cra_exit = sep_crypto_exit, | |
3926 | .cra_u.ablkcipher = { | |
3927 | .min_keysize = DES_KEY_SIZE, | |
3928 | .max_keysize = DES_KEY_SIZE, | |
3929 | .setkey = sep_des_setkey, | |
3930 | .encrypt = sep_des_ebc_encrypt, | |
3931 | .decrypt = sep_des_ebc_decrypt, | |
3932 | } | |
3933 | }, | |
3934 | { | |
3935 | .cra_name = "cbc(des)", | |
3936 | .cra_driver_name = "cbc-des-sep", | |
3937 | .cra_priority = 100, | |
3938 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3939 | .cra_blocksize = DES_BLOCK_SIZE, | |
3940 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3941 | .cra_alignmask = 0, | |
3942 | .cra_type = &crypto_ablkcipher_type, | |
3943 | .cra_module = THIS_MODULE, | |
3944 | .cra_init = sep_crypto_init, | |
3945 | .cra_exit = sep_crypto_exit, | |
3946 | .cra_u.ablkcipher = { | |
3947 | .min_keysize = DES_KEY_SIZE, | |
3948 | .max_keysize = DES_KEY_SIZE, | |
3949 | .setkey = sep_des_setkey, | |
3950 | .encrypt = sep_des_cbc_encrypt, | |
9196dc11 | 3951 | .ivsize = DES_BLOCK_SIZE, |
ff3d9c3c MA |
3952 | .decrypt = sep_des_cbc_decrypt, |
3953 | } | |
3954 | }, | |
3955 | { | |
3956 | .cra_name = "ebc(des3-ede)", | |
3957 | .cra_driver_name = "ebc-des3-ede-sep", | |
3958 | .cra_priority = 100, | |
3959 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3960 | .cra_blocksize = DES_BLOCK_SIZE, | |
3961 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3962 | .cra_alignmask = 0, | |
3963 | .cra_type = &crypto_ablkcipher_type, | |
3964 | .cra_module = THIS_MODULE, | |
3965 | .cra_init = sep_crypto_init, | |
3966 | .cra_exit = sep_crypto_exit, | |
3967 | .cra_u.ablkcipher = { | |
3968 | .min_keysize = DES3_EDE_KEY_SIZE, | |
3969 | .max_keysize = DES3_EDE_KEY_SIZE, | |
3970 | .setkey = sep_des_setkey, | |
3971 | .encrypt = sep_des_ebc_encrypt, | |
3972 | .decrypt = sep_des_ebc_decrypt, | |
3973 | } | |
3974 | }, | |
3975 | { | |
3976 | .cra_name = "cbc(des3-ede)", | |
3977 | .cra_driver_name = "cbc-des3--ede-sep", | |
3978 | .cra_priority = 100, | |
3979 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, | |
3980 | .cra_blocksize = DES_BLOCK_SIZE, | |
3981 | .cra_ctxsize = sizeof(struct sep_system_ctx), | |
3982 | .cra_alignmask = 0, | |
3983 | .cra_type = &crypto_ablkcipher_type, | |
3984 | .cra_module = THIS_MODULE, | |
3985 | .cra_init = sep_crypto_init, | |
3986 | .cra_exit = sep_crypto_exit, | |
3987 | .cra_u.ablkcipher = { | |
3988 | .min_keysize = DES3_EDE_KEY_SIZE, | |
3989 | .max_keysize = DES3_EDE_KEY_SIZE, | |
3990 | .setkey = sep_des_setkey, | |
3991 | .encrypt = sep_des_cbc_encrypt, | |
3992 | .decrypt = sep_des_cbc_decrypt, | |
3993 | } | |
3994 | } | |
3995 | }; | |
3996 | ||
3997 | int sep_crypto_setup(void) | |
3998 | { | |
3999 | int err, i, j, k; | |
4000 | tasklet_init(&sep_dev->finish_tasklet, sep_finish, | |
4001 | (unsigned long)sep_dev); | |
4002 | ||
4003 | crypto_init_queue(&sep_queue, SEP_QUEUE_LENGTH); | |
4004 | ||
9196dc11 MA |
4005 | sep_dev->workqueue = create_singlethread_workqueue( |
4006 | "sep_crypto_workqueue"); | |
ff3d9c3c MA |
4007 | if (!sep_dev->workqueue) { |
4008 | dev_warn(&sep_dev->pdev->dev, "cant create workqueue\n"); | |
4009 | return -ENOMEM; | |
4010 | } | |
4011 | ||
4012 | i = 0; | |
4013 | j = 0; | |
4014 | ||
ff3d9c3c MA |
4015 | spin_lock_init(&queue_lock); |
4016 | ||
4017 | err = 0; | |
4018 | ||
4019 | for (i = 0; i < ARRAY_SIZE(hash_algs); i++) { | |
4020 | err = crypto_register_ahash(&hash_algs[i]); | |
4021 | if (err) | |
4022 | goto err_algs; | |
4023 | } | |
4024 | ||
4025 | err = 0; | |
4026 | for (j = 0; j < ARRAY_SIZE(crypto_algs); j++) { | |
4027 | err = crypto_register_alg(&crypto_algs[j]); | |
4028 | if (err) | |
4029 | goto err_crypto_algs; | |
4030 | } | |
4031 | ||
4032 | return err; | |
4033 | ||
4034 | err_algs: | |
4035 | for (k = 0; k < i; k++) | |
4036 | crypto_unregister_ahash(&hash_algs[k]); | |
4037 | return err; | |
4038 | ||
4039 | err_crypto_algs: | |
4040 | for (k = 0; k < j; k++) | |
4041 | crypto_unregister_alg(&crypto_algs[k]); | |
4042 | goto err_algs; | |
4043 | } | |
4044 | ||
4045 | void sep_crypto_takedown(void) | |
4046 | { | |
4047 | ||
4048 | int i; | |
4049 | ||
4050 | for (i = 0; i < ARRAY_SIZE(hash_algs); i++) | |
4051 | crypto_unregister_ahash(&hash_algs[i]); | |
4052 | for (i = 0; i < ARRAY_SIZE(crypto_algs); i++) | |
4053 | crypto_unregister_alg(&crypto_algs[i]); | |
4054 | ||
4055 | tasklet_kill(&sep_dev->finish_tasklet); | |
4056 | } | |
ebb3bf50 AC |
4057 | |
4058 | #endif |