diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_hash.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_hash.c | 64 |
1 files changed, 47 insertions, 17 deletions
diff --git a/drivers/crypto/ccree/cc_hash.c b/drivers/crypto/ccree/cc_hash.c index 2c4ddc8fb76b..a6abe4e3bb0e 100644 --- a/drivers/crypto/ccree/cc_hash.c +++ b/drivers/crypto/ccree/cc_hash.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ +/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ #include <linux/kernel.h> #include <linux/module.h> @@ -69,6 +69,7 @@ struct cc_hash_alg { struct hash_key_req_ctx { u32 keylen; dma_addr_t key_dma_addr; + u8 *key; }; /* hash per-session context */ @@ -280,9 +281,13 @@ static void cc_update_complete(struct device *dev, void *cc_req, int err) dev_dbg(dev, "req=%pK\n", req); - cc_unmap_hash_request(dev, state, req->src, false); - cc_unmap_req(dev, state, ctx); - req->base.complete(&req->base, err); + if (err != -EINPROGRESS) { + /* Not a BACKLOG notification */ + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_req(dev, state, ctx); + } + + ahash_request_complete(req, err); } static void cc_digest_complete(struct device *dev, void *cc_req, int err) @@ -295,10 +300,14 @@ static void cc_digest_complete(struct device *dev, void *cc_req, int err) dev_dbg(dev, "req=%pK\n", req); - cc_unmap_hash_request(dev, state, req->src, false); - cc_unmap_result(dev, state, digestsize, req->result); - cc_unmap_req(dev, state, ctx); - req->base.complete(&req->base, err); + if (err != -EINPROGRESS) { + /* Not a BACKLOG notification */ + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); + } + + ahash_request_complete(req, err); } static void cc_hash_complete(struct device *dev, void *cc_req, int err) @@ -311,10 +320,14 @@ static void cc_hash_complete(struct device *dev, void *cc_req, int err) dev_dbg(dev, "req=%pK\n", req); - cc_unmap_hash_request(dev, state, req->src, false); - cc_unmap_result(dev, state, digestsize, req->result); - cc_unmap_req(dev, state, ctx); - req->base.complete(&req->base, err); + if (err != -EINPROGRESS) { + /* Not a BACKLOG notification */ + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); + } + + ahash_request_complete(req, err); } static int cc_fin_result(struct cc_hw_desc *desc, struct ahash_request *req, @@ -730,13 +743,20 @@ static int cc_hash_setkey(struct crypto_ahash *ahash, const u8 *key, ctx->key_params.keylen = keylen; ctx->key_params.key_dma_addr = 0; ctx->is_hmac = true; + ctx->key_params.key = NULL; if (keylen) { + ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL); + if (!ctx->key_params.key) + return -ENOMEM; + ctx->key_params.key_dma_addr = - dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE); + dma_map_single(dev, (void *)ctx->key_params.key, keylen, + DMA_TO_DEVICE); if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) { dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n", - key, keylen); + ctx->key_params.key, keylen); + kzfree(ctx->key_params.key); return -ENOMEM; } dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n", @@ -887,6 +907,9 @@ out: dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n", &ctx->key_params.key_dma_addr, ctx->key_params.keylen); } + + kzfree(ctx->key_params.key); + return rc; } @@ -913,11 +936,16 @@ static int cc_xcbc_setkey(struct crypto_ahash *ahash, ctx->key_params.keylen = keylen; + ctx->key_params.key = kmemdup(key, keylen, GFP_KERNEL); + if (!ctx->key_params.key) + return -ENOMEM; + ctx->key_params.key_dma_addr = - dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE); + dma_map_single(dev, ctx->key_params.key, keylen, DMA_TO_DEVICE); if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) { dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n", key, keylen); + kzfree(ctx->key_params.key); return -ENOMEM; } dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n", @@ -969,6 +997,8 @@ static int cc_xcbc_setkey(struct crypto_ahash *ahash, dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n", &ctx->key_params.key_dma_addr, ctx->key_params.keylen); + kzfree(ctx->key_params.key); + return rc; } @@ -1621,7 +1651,7 @@ static struct cc_hash_template driver_hash[] = { .setkey = cc_hash_setkey, .halg = { .digestsize = SHA224_DIGEST_SIZE, - .statesize = CC_STATE_SIZE(SHA224_DIGEST_SIZE), + .statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE), }, }, .hash_mode = DRV_HASH_SHA224, @@ -1648,7 +1678,7 @@ static struct cc_hash_template driver_hash[] = { .setkey = cc_hash_setkey, .halg = { .digestsize = SHA384_DIGEST_SIZE, - .statesize = CC_STATE_SIZE(SHA384_DIGEST_SIZE), + .statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE), }, }, .hash_mode = DRV_HASH_SHA384, |