diff options
Diffstat (limited to 'drivers/crypto/qce/skcipher.c')
| -rw-r--r-- | drivers/crypto/qce/skcipher.c | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/crypto/qce/skcipher.c b/drivers/crypto/qce/skcipher.c index fee07323f8f9..4217b745f124 100644 --- a/drivers/crypto/qce/skcipher.c +++ b/drivers/crypto/qce/skcipher.c @@ -21,6 +21,7 @@ static void qce_skcipher_done(void *data) struct qce_cipher_reqctx *rctx = skcipher_request_ctx(req); struct qce_alg_template *tmpl = to_cipher_tmpl(crypto_skcipher_reqtfm(req)); struct qce_device *qce = tmpl->qce; + struct qce_result_dump *result_buf = qce->dma.result_buf; enum dma_data_direction dir_src, dir_dst; u32 status; int error; @@ -45,6 +46,7 @@ static void qce_skcipher_done(void *data) if (error < 0) dev_dbg(qce->dev, "skcipher operation error (%x)\n", status); + memcpy(rctx->iv, result_buf->encr_cntr_iv, rctx->ivsize); qce->async_req_done(tmpl->qce, error); } @@ -95,13 +97,13 @@ qce_skcipher_async_req_handle(struct crypto_async_request *async_req) sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ); - sg = qce_sgtable_add(&rctx->dst_tbl, req->dst); + sg = qce_sgtable_add(&rctx->dst_tbl, req->dst, rctx->dst_nents - 1); if (IS_ERR(sg)) { ret = PTR_ERR(sg); goto error_free; } - sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg); + sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg, 1); if (IS_ERR(sg)) { ret = PTR_ERR(sg); goto error_free; @@ -154,12 +156,13 @@ static int qce_skcipher_setkey(struct crypto_skcipher *ablk, const u8 *key, { struct crypto_tfm *tfm = crypto_skcipher_tfm(ablk); struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm); + unsigned long flags = to_cipher_tmpl(ablk)->alg_flags; int ret; if (!key || !keylen) return -EINVAL; - switch (keylen) { + switch (IS_XTS(flags) ? keylen >> 1 : keylen) { case AES_KEYSIZE_128: case AES_KEYSIZE_256: break; @@ -213,13 +216,15 @@ static int qce_skcipher_crypt(struct skcipher_request *req, int encrypt) struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); struct qce_cipher_reqctx *rctx = skcipher_request_ctx(req); struct qce_alg_template *tmpl = to_cipher_tmpl(tfm); + int keylen; int ret; rctx->flags = tmpl->alg_flags; rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT; + keylen = IS_XTS(rctx->flags) ? ctx->enc_keylen >> 1 : ctx->enc_keylen; - if (IS_AES(rctx->flags) && ctx->enc_keylen != AES_KEYSIZE_128 && - ctx->enc_keylen != AES_KEYSIZE_256) { + if (IS_AES(rctx->flags) && keylen != AES_KEYSIZE_128 && + keylen != AES_KEYSIZE_256) { SYNC_SKCIPHER_REQUEST_ON_STACK(subreq, ctx->fallback); skcipher_request_set_sync_tfm(subreq, ctx->fallback); @@ -252,7 +257,14 @@ static int qce_skcipher_init(struct crypto_skcipher *tfm) memset(ctx, 0, sizeof(*ctx)); crypto_skcipher_set_reqsize(tfm, sizeof(struct qce_cipher_reqctx)); + return 0; +} + +static int qce_skcipher_init_fallback(struct crypto_skcipher *tfm) +{ + struct qce_cipher_ctx *ctx = crypto_skcipher_ctx(tfm); + qce_skcipher_init(tfm); ctx->fallback = crypto_alloc_sync_skcipher(crypto_tfm_alg_name(&tfm->base), 0, CRYPTO_ALG_NEED_FALLBACK); return PTR_ERR_OR_ZERO(ctx->fallback); @@ -270,6 +282,7 @@ struct qce_skcipher_def { const char *name; const char *drv_name; unsigned int blocksize; + unsigned int chunksize; unsigned int ivsize; unsigned int min_keysize; unsigned int max_keysize; @@ -298,7 +311,8 @@ static const struct qce_skcipher_def skcipher_def[] = { .flags = QCE_ALG_AES | QCE_MODE_CTR, .name = "ctr(aes)", .drv_name = "ctr-aes-qce", - .blocksize = AES_BLOCK_SIZE, + .blocksize = 1, + .chunksize = AES_BLOCK_SIZE, .ivsize = AES_BLOCK_SIZE, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, @@ -309,8 +323,8 @@ static const struct qce_skcipher_def skcipher_def[] = { .drv_name = "xts-aes-qce", .blocksize = AES_BLOCK_SIZE, .ivsize = AES_BLOCK_SIZE, - .min_keysize = AES_MIN_KEY_SIZE, - .max_keysize = AES_MAX_KEY_SIZE, + .min_keysize = AES_MIN_KEY_SIZE * 2, + .max_keysize = AES_MAX_KEY_SIZE * 2, }, { .flags = QCE_ALG_DES | QCE_MODE_ECB, @@ -368,6 +382,7 @@ static int qce_skcipher_register_one(const struct qce_skcipher_def *def, def->drv_name); alg->base.cra_blocksize = def->blocksize; + alg->chunksize = def->chunksize; alg->ivsize = def->ivsize; alg->min_keysize = def->min_keysize; alg->max_keysize = def->max_keysize; @@ -379,14 +394,18 @@ static int qce_skcipher_register_one(const struct qce_skcipher_def *def, alg->base.cra_priority = 300; alg->base.cra_flags = CRYPTO_ALG_ASYNC | - CRYPTO_ALG_NEED_FALLBACK | CRYPTO_ALG_KERN_DRIVER_ONLY; alg->base.cra_ctxsize = sizeof(struct qce_cipher_ctx); alg->base.cra_alignmask = 0; alg->base.cra_module = THIS_MODULE; - alg->init = qce_skcipher_init; - alg->exit = qce_skcipher_exit; + if (IS_AES(def->flags)) { + alg->base.cra_flags |= CRYPTO_ALG_NEED_FALLBACK; + alg->init = qce_skcipher_init_fallback; + alg->exit = qce_skcipher_exit; + } else { + alg->init = qce_skcipher_init; + } INIT_LIST_HEAD(&tmpl->entry); tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_SKCIPHER; |