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-rw-r--r--drivers/crypto/ccree/cc_aead.c27
-rw-r--r--drivers/crypto/ccree/cc_aead.h3
-rw-r--r--drivers/crypto/ccree/cc_buffer_mgr.c89
3 files changed, 16 insertions, 103 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c
index ede16e37d453..875fa79a03eb 100644
--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -1609,7 +1609,6 @@ static void cc_proc_rfc4309_ccm(struct aead_request *req)
memcpy(areq_ctx->ctr_iv + CCM_BLOCK_IV_OFFSET, req->iv,
CCM_BLOCK_IV_SIZE);
req->iv = areq_ctx->ctr_iv;
- areq_ctx->assoclen -= CCM_BLOCK_IV_SIZE;
}
static void cc_set_ghash_desc(struct aead_request *req,
@@ -1868,8 +1867,7 @@ static int config_gcm_context(struct aead_request *req)
*/
__be64 temp64;
- temp64 = cpu_to_be64((req_ctx->assoclen +
- GCM_BLOCK_RFC4_IV_SIZE + cryptlen) * 8);
+ temp64 = cpu_to_be64((req_ctx->assoclen + cryptlen) * 8);
memcpy(&req_ctx->gcm_len_block.len_a, &temp64, sizeof(temp64));
temp64 = 0;
memcpy(&req_ctx->gcm_len_block.len_c, &temp64, 8);
@@ -1889,7 +1887,6 @@ static void cc_proc_rfc4_gcm(struct aead_request *req)
memcpy(areq_ctx->ctr_iv + GCM_BLOCK_RFC4_IV_OFFSET, req->iv,
GCM_BLOCK_RFC4_IV_SIZE);
req->iv = areq_ctx->ctr_iv;
- areq_ctx->assoclen -= GCM_BLOCK_RFC4_IV_SIZE;
}
static int cc_proc_aead(struct aead_request *req,
@@ -2031,9 +2028,6 @@ static int cc_aead_encrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->assoclen = req->assoclen;
- areq_ctx->is_gcm4543 = false;
-
- areq_ctx->plaintext_authenticate_only = false;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
@@ -2057,8 +2051,7 @@ static int cc_rfc4309_ccm_encrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
- areq_ctx->assoclen = req->assoclen;
- areq_ctx->is_gcm4543 = true;
+ areq_ctx->assoclen = req->assoclen - CCM_BLOCK_IV_SIZE;
cc_proc_rfc4309_ccm(req);
@@ -2079,9 +2072,6 @@ static int cc_aead_decrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
areq_ctx->assoclen = req->assoclen;
- areq_ctx->is_gcm4543 = false;
-
- areq_ctx->plaintext_authenticate_only = false;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
@@ -2103,9 +2093,8 @@ static int cc_rfc4309_ccm_decrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
- areq_ctx->assoclen = req->assoclen;
+ areq_ctx->assoclen = req->assoclen - CCM_BLOCK_IV_SIZE;
- areq_ctx->is_gcm4543 = true;
cc_proc_rfc4309_ccm(req);
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT);
@@ -2216,11 +2205,9 @@ static int cc_rfc4106_gcm_encrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
- areq_ctx->assoclen = req->assoclen;
- areq_ctx->plaintext_authenticate_only = false;
+ areq_ctx->assoclen = req->assoclen - GCM_BLOCK_RFC4_IV_SIZE;
cc_proc_rfc4_gcm(req);
- areq_ctx->is_gcm4543 = true;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
@@ -2248,7 +2235,6 @@ static int cc_rfc4543_gcm_encrypt(struct aead_request *req)
areq_ctx->assoclen = req->assoclen;
cc_proc_rfc4_gcm(req);
- areq_ctx->is_gcm4543 = true;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
@@ -2270,11 +2256,9 @@ static int cc_rfc4106_gcm_decrypt(struct aead_request *req)
/* No generated IV required */
areq_ctx->backup_iv = req->iv;
- areq_ctx->assoclen = req->assoclen;
- areq_ctx->plaintext_authenticate_only = false;
+ areq_ctx->assoclen = req->assoclen - GCM_BLOCK_RFC4_IV_SIZE;
cc_proc_rfc4_gcm(req);
- areq_ctx->is_gcm4543 = true;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
@@ -2302,7 +2286,6 @@ static int cc_rfc4543_gcm_decrypt(struct aead_request *req)
areq_ctx->assoclen = req->assoclen;
cc_proc_rfc4_gcm(req);
- areq_ctx->is_gcm4543 = true;
rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT);
if (rc != -EINPROGRESS && rc != -EBUSY)
diff --git a/drivers/crypto/ccree/cc_aead.h b/drivers/crypto/ccree/cc_aead.h
index f12169b57f9d..b69591550730 100644
--- a/drivers/crypto/ccree/cc_aead.h
+++ b/drivers/crypto/ccree/cc_aead.h
@@ -66,7 +66,7 @@ struct aead_req_ctx {
/* used to prevent cache coherence problem */
u8 backup_mac[MAX_MAC_SIZE];
u8 *backup_iv; /* store orig iv */
- u32 assoclen; /* internal assoclen */
+ u32 assoclen; /* size of AAD buffer to authenticate */
dma_addr_t mac_buf_dma_addr; /* internal ICV DMA buffer */
/* buffer for internal ccm configurations */
dma_addr_t ccm_iv0_dma_addr;
@@ -79,7 +79,6 @@ struct aead_req_ctx {
dma_addr_t gcm_iv_inc2_dma_addr;
dma_addr_t hkey_dma_addr; /* Phys. address of hkey */
dma_addr_t gcm_block_len_dma_addr; /* Phys. address of gcm block len */
- bool is_gcm4543;
u8 *icv_virt_addr; /* Virt. address of ICV */
struct async_gen_req_ctx gen_ctx;
diff --git a/drivers/crypto/ccree/cc_buffer_mgr.c b/drivers/crypto/ccree/cc_buffer_mgr.c
index 526da532a0a3..b2bd093e7013 100644
--- a/drivers/crypto/ccree/cc_buffer_mgr.c
+++ b/drivers/crypto/ccree/cc_buffer_mgr.c
@@ -13,12 +13,6 @@
#include "cc_hash.h"
#include "cc_aead.h"
-enum dma_buffer_type {
- DMA_NULL_TYPE = -1,
- DMA_SGL_TYPE = 1,
- DMA_BUFF_TYPE = 2,
-};
-
union buffer_array_entry {
struct scatterlist *sgl;
dma_addr_t buffer_dma;
@@ -30,7 +24,6 @@ struct buffer_array {
unsigned int offset[MAX_NUM_OF_BUFFERS_IN_MLLI];
int nents[MAX_NUM_OF_BUFFERS_IN_MLLI];
int total_data_len[MAX_NUM_OF_BUFFERS_IN_MLLI];
- enum dma_buffer_type type[MAX_NUM_OF_BUFFERS_IN_MLLI];
bool is_last[MAX_NUM_OF_BUFFERS_IN_MLLI];
u32 *mlli_nents[MAX_NUM_OF_BUFFERS_IN_MLLI];
};
@@ -60,11 +53,7 @@ static void cc_copy_mac(struct device *dev, struct aead_request *req,
enum cc_sg_cpy_direct dir)
{
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- u32 skip = areq_ctx->assoclen + req->cryptlen;
-
- if (areq_ctx->is_gcm4543)
- skip += crypto_aead_ivsize(tfm);
+ u32 skip = req->assoclen + req->cryptlen;
cc_copy_sg_portion(dev, areq_ctx->backup_mac, req->src,
(skip - areq_ctx->req_authsize), skip, dir);
@@ -216,14 +205,8 @@ static int cc_generate_mlli(struct device *dev, struct buffer_array *sg_data,
u32 tot_len = sg_data->total_data_len[i];
u32 offset = sg_data->offset[i];
- if (sg_data->type[i] == DMA_SGL_TYPE)
- rc = cc_render_sg_to_mlli(dev, entry->sgl, tot_len,
- offset, &total_nents,
- &mlli_p);
- else /*DMA_BUFF_TYPE*/
- rc = cc_render_buff_to_mlli(dev, entry->buffer_dma,
- tot_len, &total_nents,
- &mlli_p);
+ rc = cc_render_sg_to_mlli(dev, entry->sgl, tot_len, offset,
+ &total_nents, &mlli_p);
if (rc)
return rc;
@@ -249,27 +232,6 @@ build_mlli_exit:
return rc;
}
-static void cc_add_buffer_entry(struct device *dev,
- struct buffer_array *sgl_data,
- dma_addr_t buffer_dma, unsigned int buffer_len,
- bool is_last_entry, u32 *mlli_nents)
-{
- unsigned int index = sgl_data->num_of_buffers;
-
- dev_dbg(dev, "index=%u single_buff=%pad buffer_len=0x%08X is_last=%d\n",
- index, &buffer_dma, buffer_len, is_last_entry);
- sgl_data->nents[index] = 1;
- sgl_data->entry[index].buffer_dma = buffer_dma;
- sgl_data->offset[index] = 0;
- sgl_data->total_data_len[index] = buffer_len;
- sgl_data->type[index] = DMA_BUFF_TYPE;
- sgl_data->is_last[index] = is_last_entry;
- sgl_data->mlli_nents[index] = mlli_nents;
- if (sgl_data->mlli_nents[index])
- *sgl_data->mlli_nents[index] = 0;
- sgl_data->num_of_buffers++;
-}
-
static void cc_add_sg_entry(struct device *dev, struct buffer_array *sgl_data,
unsigned int nents, struct scatterlist *sgl,
unsigned int data_len, unsigned int data_offset,
@@ -283,7 +245,6 @@ static void cc_add_sg_entry(struct device *dev, struct buffer_array *sgl_data,
sgl_data->entry[index].sgl = sgl;
sgl_data->offset[index] = data_offset;
sgl_data->total_data_len[index] = data_len;
- sgl_data->type[index] = DMA_SGL_TYPE;
sgl_data->is_last[index] = is_last_table;
sgl_data->mlli_nents[index] = mlli_nents;
if (sgl_data->mlli_nents[index])
@@ -606,17 +567,6 @@ static int cc_aead_chain_iv(struct cc_drvdata *drvdata,
dev_dbg(dev, "Mapped iv %u B at va=%pK to dma=%pad\n",
hw_iv_size, req->iv, &areq_ctx->gen_ctx.iv_dma_addr);
- if (do_chain && areq_ctx->plaintext_authenticate_only) {
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- unsigned int iv_size_to_authenc = crypto_aead_ivsize(tfm);
- unsigned int iv_ofs = GCM_BLOCK_RFC4_IV_OFFSET;
- /* Chain to given list */
- cc_add_buffer_entry(dev, sg_data,
- (areq_ctx->gen_ctx.iv_dma_addr + iv_ofs),
- iv_size_to_authenc, is_last,
- &areq_ctx->assoc.mlli_nents);
- areq_ctx->assoc_buff_type = CC_DMA_BUF_MLLI;
- }
chain_iv_exit:
return rc;
@@ -630,13 +580,8 @@ static int cc_aead_chain_assoc(struct cc_drvdata *drvdata,
struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
int rc = 0;
int mapped_nents = 0;
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- unsigned int size_of_assoc = areq_ctx->assoclen;
struct device *dev = drvdata_to_dev(drvdata);
- if (areq_ctx->is_gcm4543)
- size_of_assoc += crypto_aead_ivsize(tfm);
-
if (!sg_data) {
rc = -EINVAL;
goto chain_assoc_exit;
@@ -652,7 +597,7 @@ static int cc_aead_chain_assoc(struct cc_drvdata *drvdata,
goto chain_assoc_exit;
}
- mapped_nents = sg_nents_for_len(req->src, size_of_assoc);
+ mapped_nents = sg_nents_for_len(req->src, areq_ctx->assoclen);
if (mapped_nents < 0)
return mapped_nents;
@@ -845,16 +790,11 @@ static int cc_aead_chain_data(struct cc_drvdata *drvdata,
u32 src_mapped_nents = 0, dst_mapped_nents = 0;
u32 offset = 0;
/* non-inplace mode */
- unsigned int size_for_map = areq_ctx->assoclen + req->cryptlen;
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ unsigned int size_for_map = req->assoclen + req->cryptlen;
u32 sg_index = 0;
- bool is_gcm4543 = areq_ctx->is_gcm4543;
- u32 size_to_skip = areq_ctx->assoclen;
+ u32 size_to_skip = req->assoclen;
struct scatterlist *sgl;
- if (is_gcm4543)
- size_to_skip += crypto_aead_ivsize(tfm);
-
offset = size_to_skip;
if (!sg_data)
@@ -863,9 +803,6 @@ static int cc_aead_chain_data(struct cc_drvdata *drvdata,
areq_ctx->src_sgl = req->src;
areq_ctx->dst_sgl = req->dst;
- if (is_gcm4543)
- size_for_map += crypto_aead_ivsize(tfm);
-
size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
authsize : 0;
src_mapped_nents = cc_get_sgl_nents(dev, req->src, size_for_map,
@@ -892,16 +829,13 @@ static int cc_aead_chain_data(struct cc_drvdata *drvdata,
areq_ctx->src_offset = offset;
if (req->src != req->dst) {
- size_for_map = areq_ctx->assoclen + req->cryptlen;
+ size_for_map = req->assoclen + req->cryptlen;
if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT)
size_for_map += authsize;
else
size_for_map -= authsize;
- if (is_gcm4543)
- size_for_map += crypto_aead_ivsize(tfm);
-
rc = cc_map_sg(dev, req->dst, size_for_map, DMA_BIDIRECTIONAL,
&areq_ctx->dst.mapped_nents,
LLI_MAX_NUM_OF_DATA_ENTRIES, &dst_last_bytes,
@@ -1008,12 +942,10 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req)
struct buffer_array sg_data;
unsigned int authsize = areq_ctx->req_authsize;
int rc = 0;
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- bool is_gcm4543 = areq_ctx->is_gcm4543;
dma_addr_t dma_addr;
u32 mapped_nents = 0;
u32 dummy = 0; /*used for the assoc data fragments */
- u32 size_to_map = 0;
+ u32 size_to_map;
gfp_t flags = cc_gfp_flags(&req->base);
mlli_params->curr_pool = NULL;
@@ -1110,14 +1042,13 @@ int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req)
areq_ctx->gcm_iv_inc2_dma_addr = dma_addr;
}
- size_to_map = req->cryptlen + areq_ctx->assoclen;
+ size_to_map = req->cryptlen + req->assoclen;
/* If we do in-place encryption, we also need the auth tag */
if ((areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_ENCRYPT) &&
(req->src == req->dst)) {
size_to_map += authsize;
}
- if (is_gcm4543)
- size_to_map += crypto_aead_ivsize(tfm);
+
rc = cc_map_sg(dev, req->src, size_to_map, DMA_BIDIRECTIONAL,
&areq_ctx->src.mapped_nents,
(LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES +
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.