ahash.c (1ffc9fbd1e5071948b6d48f9a27d845738ee890f) ahash.c (d4a7a0fbe959e12bdd071b79b50ed34853a6db8f)
1/*
2 * Asynchronous Cryptographic Hash operations.
3 *
4 * This is the asynchronous version of hash.c with notification of
5 * completion via a callback.
6 *
7 * Copyright (c) 2008 Loc Ho <lho@amcc.com>
8 *

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344
345 if (err == -EINPROGRESS)
346 return;
347
348 if (!err)
349 memcpy(priv->result, req->result,
350 crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
351
1/*
2 * Asynchronous Cryptographic Hash operations.
3 *
4 * This is the asynchronous version of hash.c with notification of
5 * completion via a callback.
6 *
7 * Copyright (c) 2008 Loc Ho <lho@amcc.com>
8 *

--- 335 unchanged lines hidden (view full) ---

344
345 if (err == -EINPROGRESS)
346 return;
347
348 if (!err)
349 memcpy(priv->result, req->result,
350 crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
351
352 kzfree(priv);
352 ahash_restore_req(req);
353}
354
355static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
356{
357 struct ahash_request *areq = req->data;
353}
354
355static void ahash_def_finup_done2(struct crypto_async_request *req, int err)
356{
357 struct ahash_request *areq = req->data;
358 struct ahash_request_priv *priv = areq->priv;
359 crypto_completion_t complete = priv->complete;
360 void *data = priv->data;
361
362 ahash_def_finup_finish2(areq, err);
363
358
359 ahash_def_finup_finish2(areq, err);
360
364 complete(data, err);
361 areq->base.complete(&areq->base, err);
365}
366
367static int ahash_def_finup_finish1(struct ahash_request *req, int err)
368{
369 if (err)
370 goto out;
371
372 req->base.complete = ahash_def_finup_done2;
373 req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
374 err = crypto_ahash_reqtfm(req)->final(req);
375
376out:
377 ahash_def_finup_finish2(req, err);
378 return err;
379}
380
381static void ahash_def_finup_done1(struct crypto_async_request *req, int err)
382{
383 struct ahash_request *areq = req->data;
362}
363
364static int ahash_def_finup_finish1(struct ahash_request *req, int err)
365{
366 if (err)
367 goto out;
368
369 req->base.complete = ahash_def_finup_done2;
370 req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
371 err = crypto_ahash_reqtfm(req)->final(req);
372
373out:
374 ahash_def_finup_finish2(req, err);
375 return err;
376}
377
378static void ahash_def_finup_done1(struct crypto_async_request *req, int err)
379{
380 struct ahash_request *areq = req->data;
384 struct ahash_request_priv *priv = areq->priv;
385 crypto_completion_t complete = priv->complete;
386 void *data = priv->data;
387
388 err = ahash_def_finup_finish1(areq, err);
389
381
382 err = ahash_def_finup_finish1(areq, err);
383
390 complete(data, err);
384 areq->base.complete(&areq->base, err);
391}
392
393static int ahash_def_finup(struct ahash_request *req)
394{
395 struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
385}
386
387static int ahash_def_finup(struct ahash_request *req)
388{
389 struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
396 unsigned long alignmask = crypto_ahash_alignmask(tfm);
397 unsigned int ds = crypto_ahash_digestsize(tfm);
398 struct ahash_request_priv *priv;
390 int err;
399
391
400 priv = kmalloc(sizeof(*priv) + ahash_align_buffer_size(ds, alignmask),
401 (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
402 GFP_KERNEL : GFP_ATOMIC);
403 if (!priv)
404 return -ENOMEM;
392 err = ahash_save_req(req, ahash_def_finup_done1);
393 if (err)
394 return err;
405
395
406 priv->result = req->result;
407 priv->complete = req->base.complete;
408 priv->data = req->base.data;
409
410 req->result = PTR_ALIGN((u8 *)priv->ubuf, alignmask + 1);
411 req->base.complete = ahash_def_finup_done1;
412 req->base.data = req;
413 req->priv = priv;
414
415 return ahash_def_finup_finish1(req, tfm->update(req));
396 err = tfm->update(req);
397 return ahash_def_finup_finish1(req, err);
416}
417
418static int ahash_no_export(struct ahash_request *req, void *out)
419{
420 return -ENOSYS;
421}
422
423static int ahash_no_import(struct ahash_request *req, const void *in)

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399
400static int ahash_no_export(struct ahash_request *req, void *out)
401{
402 return -ENOSYS;
403}
404
405static int ahash_no_import(struct ahash_request *req, const void *in)

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