algif_skcipher.c (0f6bb83cb12e4617e696ffa566f3fc6c092686e2) algif_skcipher.c (bc97e57eb21f8db55bf0e1f182d384e75b2e3c99)
1/*
2 * algif_skcipher: User-space interface for skcipher algorithms
3 *
4 * This file provides the user-space API for symmetric key ciphers.
5 *
6 * Copyright (c) 2010 Herbert Xu <herbert@gondor.apana.org.au>
7 *
8 * This program is free software; you can redistribute it and/or modify it

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449 if (!used) {
450 err = skcipher_wait_for_data(sk, flags);
451 if (err)
452 goto unlock;
453 }
454
455 used = min_t(unsigned long, used, seglen);
456
1/*
2 * algif_skcipher: User-space interface for skcipher algorithms
3 *
4 * This file provides the user-space API for symmetric key ciphers.
5 *
6 * Copyright (c) 2010 Herbert Xu <herbert@gondor.apana.org.au>
7 *
8 * This program is free software; you can redistribute it and/or modify it

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

449 if (!used) {
450 err = skcipher_wait_for_data(sk, flags);
451 if (err)
452 goto unlock;
453 }
454
455 used = min_t(unsigned long, used, seglen);
456
457 used = af_alg_make_sg(&ctx->rsgl, from, used, 1);
458 err = used;
459 if (err < 0)
460 goto unlock;
461
457 if (ctx->more || used < ctx->used)
458 used -= used % bs;
459
460 err = -EINVAL;
461 if (!used)
462 if (ctx->more || used < ctx->used)
463 used -= used % bs;
464
465 err = -EINVAL;
466 if (!used)
462 goto unlock;
467 goto free;
463
468
464 used = af_alg_make_sg(&ctx->rsgl, from, used, 1);
465 err = used;
466 if (err < 0)
467 goto unlock;
468
469 ablkcipher_request_set_crypt(&ctx->req, sg,
470 ctx->rsgl.sg, used,
471 ctx->iv);
472
473 err = af_alg_wait_for_completion(
474 ctx->enc ?
475 crypto_ablkcipher_encrypt(&ctx->req) :
476 crypto_ablkcipher_decrypt(&ctx->req),
477 &ctx->completion);
478
469 ablkcipher_request_set_crypt(&ctx->req, sg,
470 ctx->rsgl.sg, used,
471 ctx->iv);
472
473 err = af_alg_wait_for_completion(
474 ctx->enc ?
475 crypto_ablkcipher_encrypt(&ctx->req) :
476 crypto_ablkcipher_decrypt(&ctx->req),
477 &ctx->completion);
478
479free:
479 af_alg_free_sg(&ctx->rsgl);
480
481 if (err)
482 goto unlock;
483
484 copied += used;
485 from += used;
486 seglen -= used;

--- 145 unchanged lines hidden --- 		480 af_alg_free_sg(&ctx->rsgl);
481
482 if (err)
483 goto unlock;
484
485 copied += used;
486 from += used;
487 seglen -= used;

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