This patch is preparation for adding new algorithm types.
Some elements which are AEAD specific were renamed.
The algorithm template structure was changed to
use crypto_alg, and talitos_alg_alloc was made
more general with respect to algorithm types.
Signed-off-by: Lee Nipper <lee.nipper@xxxxxxxxx>
---
drivers/crypto/talitos.c | 245 ++++++++++++++++++++++++----------------------
1 files changed, 129 insertions(+), 116 deletions(-)
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index d853530..d53e2eb 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -688,8 +688,8 @@ struct talitos_ctx {
unsigned int authsize;
};
-static int aead_authenc_setauthsize(struct crypto_aead *authenc,
- unsigned int authsize)
+static int aead_setauthsize(struct crypto_aead *authenc,
+ unsigned int authsize)
{
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
@@ -698,8 +698,8 @@ static int aead_authenc_setauthsize(struct crypto_aead *authenc,
return 0;
}
-static int aead_authenc_setkey(struct crypto_aead *authenc,
- const u8 *key, unsigned int keylen)
+static int aead_setkey(struct crypto_aead *authenc,
+ const u8 *key, unsigned int keylen)
{
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
struct rtattr *rta = (void *)key;
@@ -744,7 +744,7 @@ badkey:
}
/*
- * ipsec_esp_edesc - s/w-extended ipsec_esp descriptor
+ * talitos_edesc - s/w-extended descriptor
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
* @dma_len: length of dma mapped link_tbl space
@@ -756,7 +756,7 @@ badkey:
* is greater than 1, an integrity check value is concatenated to the end
* of link_tbl data
*/
-struct ipsec_esp_edesc {
+struct talitos_edesc {
int src_nents;
int dst_nents;
int dma_len;
@@ -766,7 +766,7 @@ struct ipsec_esp_edesc {
};
static void ipsec_esp_unmap(struct device *dev,
- struct ipsec_esp_edesc *edesc,
+ struct talitos_edesc *edesc,
struct aead_request *areq)
{
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6], DMA_FROM_DEVICE);
@@ -799,8 +799,8 @@ static void ipsec_esp_encrypt_done(struct device *dev,
int err)
{
struct aead_request *areq = context;
- struct ipsec_esp_edesc *edesc =
- container_of(desc, struct ipsec_esp_edesc, desc);
+ struct talitos_edesc *edesc =
+ container_of(desc, struct talitos_edesc, desc);
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
struct scatterlist *sg;
@@ -827,8 +827,8 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
int err)
{
struct aead_request *req = context;
- struct ipsec_esp_edesc *edesc =
- container_of(desc, struct ipsec_esp_edesc, desc);
+ struct talitos_edesc *edesc =
+ container_of(desc, struct talitos_edesc, desc);
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
struct scatterlist *sg;
@@ -859,8 +859,8 @@ static void ipsec_esp_decrypt_hwauth_done(struct device *dev,
int err)
{
struct aead_request *req = context;
- struct ipsec_esp_edesc *edesc =
- container_of(desc, struct ipsec_esp_edesc, desc);
+ struct talitos_edesc *edesc =
+ container_of(desc, struct talitos_edesc, desc);
ipsec_esp_unmap(dev, edesc, req);
@@ -914,7 +914,7 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
/*
* fill in and submit ipsec_esp descriptor
*/
-static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq,
+static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
u8 *giv, u64 seq,
void (*callback) (struct device *dev,
struct talitos_desc *desc,
@@ -1056,14 +1056,14 @@ static int sg_count(struct scatterlist *sg_list, int nbytes)
}
/*
- * allocate and map the ipsec_esp extended descriptor
+ * allocate and map the extended descriptor
*/
-static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
+static struct talitos_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
int icv_stashing)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- struct ipsec_esp_edesc *edesc;
+ struct talitos_edesc *edesc;
int src_nents, dst_nents, alloc_len, dma_len;
gfp_t flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@@ -1088,7 +1088,7 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
* allowing for two separate entries for ICV and generated ICV (+ 2),
* and the ICV data itself
*/
- alloc_len = sizeof(struct ipsec_esp_edesc);
+ alloc_len = sizeof(struct talitos_edesc);
if (src_nents || dst_nents) {
dma_len = (src_nents + dst_nents + 2) *
sizeof(struct talitos_ptr) + ctx->authsize;
@@ -1113,11 +1113,11 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq,
return edesc;
}
-static int aead_authenc_encrypt(struct aead_request *req)
+static int aead_encrypt(struct aead_request *req)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- struct ipsec_esp_edesc *edesc;
+ struct talitos_edesc *edesc;
/* allocate extended descriptor */
edesc = ipsec_esp_edesc_alloc(req, 0);
@@ -1132,13 +1132,13 @@ static int aead_authenc_encrypt(struct aead_request *req)
-static int aead_authenc_decrypt(struct aead_request *req)
+static int aead_decrypt(struct aead_request *req)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
unsigned int authsize = ctx->authsize;
struct talitos_private *priv = dev_get_drvdata(ctx->dev);
- struct ipsec_esp_edesc *edesc;
+ struct talitos_edesc *edesc;
struct scatterlist *sg;
void *icvdata;
@@ -1184,13 +1184,12 @@ static int aead_authenc_decrypt(struct aead_request *req)
}
}
-static int aead_authenc_givencrypt(
- struct aead_givcrypt_request *req)
+static int aead_givencrypt(struct aead_givcrypt_request *req)
{
struct aead_request *areq = &req->areq;
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- struct ipsec_esp_edesc *edesc;
+ struct talitos_edesc *edesc;
/* allocate extended descriptor */
edesc = ipsec_esp_edesc_alloc(areq, 0);
@@ -1209,30 +1208,30 @@ static int aead_authenc_givencrypt(
}
struct talitos_alg_template {
- char name[CRYPTO_MAX_ALG_NAME];
- char driver_name[CRYPTO_MAX_ALG_NAME];
- unsigned int blocksize;
- struct aead_alg aead;
- struct device *dev;
+ struct crypto_alg alg;
__be32 desc_hdr_template;
};
static struct talitos_alg_template driver_algs[] = {
- /* single-pass ipsec_esp descriptor */
+ /* AEAD algorithms. These use a single-pass ipsec_esp descriptor */
{
- .name = "authenc(hmac(sha1),cbc(aes))",
- .driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
- .blocksize = AES_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA1_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(sha1),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
DESC_HDR_MODE0_AESU_CBC |
@@ -1242,19 +1241,23 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
},
{
- .name = "authenc(hmac(sha1),cbc(des3_ede))",
- .driver_name = "authenc-hmac-sha1-cbc-3des-talitos",
- .blocksize = DES3_EDE_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA1_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(sha1),cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha1-cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
DESC_HDR_MODE0_DEU_CBC |
@@ -1265,19 +1268,23 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
},
{
- .name = "authenc(hmac(sha256),cbc(aes))",
- .driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
- .blocksize = AES_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA256_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(sha256),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
DESC_HDR_MODE0_AESU_CBC |
@@ -1287,19 +1294,23 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
},
{
- .name = "authenc(hmac(sha256),cbc(des3_ede))",
- .driver_name = "authenc-hmac-sha256-cbc-3des-talitos",
- .blocksize = DES3_EDE_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA256_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(sha256),cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha256-cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
DESC_HDR_MODE0_DEU_CBC |
@@ -1310,19 +1321,23 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
},
{
- .name = "authenc(hmac(md5),cbc(aes))",
- .driver_name = "authenc-hmac-md5-cbc-aes-talitos",
- .blocksize = AES_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = MD5_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(md5),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-md5-cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
DESC_HDR_MODE0_AESU_CBC |
@@ -1332,19 +1347,23 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_MD5_HMAC,
},
{
- .name = "authenc(hmac(md5),cbc(des3_ede))",
- .driver_name = "authenc-hmac-md5-cbc-3des-talitos",
- .blocksize = DES3_EDE_BLOCK_SIZE,
- .aead = {
- .setkey = aead_authenc_setkey,
- .setauthsize = aead_authenc_setauthsize,
- .encrypt = aead_authenc_encrypt,
- .decrypt = aead_authenc_decrypt,
- .givencrypt = aead_authenc_givencrypt,
- .geniv = "<built-in>",
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = MD5_DIGEST_SIZE,
- },
+ .alg = {
+ .cra_name = "authenc(hmac(md5),cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-md5-cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_aead_type,
+ .cra_aead = {
+ .setkey = aead_setkey,
+ .setauthsize = aead_setauthsize,
+ .encrypt = aead_encrypt,
+ .decrypt = aead_decrypt,
+ .givencrypt = aead_givencrypt,
+ .geniv = "<built-in>",
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
+ }
+ },
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
DESC_HDR_MODE0_DEU_CBC |
@@ -1457,19 +1476,13 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
return ERR_PTR(-ENOMEM);
alg = &t_alg->crypto_alg;
+ *alg = template->alg;
- snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name);
- snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
- template->driver_name);
alg->cra_module = THIS_MODULE;
alg->cra_init = talitos_cra_init;
alg->cra_priority = TALITOS_CRA_PRIORITY;
- alg->cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
- alg->cra_blocksize = template->blocksize;
alg->cra_alignmask = 0;
- alg->cra_type = &crypto_aead_type;
alg->cra_ctxsize = sizeof(struct talitos_ctx);
- alg->cra_u.aead = template->aead;
t_alg->desc_hdr_template = template->desc_hdr_template;
t_alg->dev = dev;
--
1.5.6.3
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