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crypto: crypto4xx - prepare for AEAD support

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This patch enhances existing interfaces and
functions to support AEAD ciphers in the next
patches.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Lamparter
2017-10-04 01:00:15 +02:00
committed by Herbert Xu
parent 2f77690dcb
commit a0aae821ba
5 changed files with 231 additions and 74 deletions
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41
drivers/crypto/amcc/crypto4xx_sa.h
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@@ -55,6 +55,8 @@ union dynamic_sa_contents {
#define SA_OP_GROUP_BASIC 0
#define SA_OPCODE_ENCRYPT 0
#define SA_OPCODE_DECRYPT 0
#define SA_OPCODE_ENCRYPT_HASH 1
#define SA_OPCODE_HASH_DECRYPT 1
#define SA_OPCODE_HASH 3
#define SA_CIPHER_ALG_DES 0
#define SA_CIPHER_ALG_3DES 1
@@ -65,6 +67,8 @@ union dynamic_sa_contents {
#define SA_HASH_ALG_MD5 0
#define SA_HASH_ALG_SHA1 1
#define SA_HASH_ALG_GHASH 12
#define SA_HASH_ALG_CBC_MAC 14
#define SA_HASH_ALG_NULL 15
#define SA_HASH_ALG_SHA1_DIGEST_SIZE 20
@@ -233,6 +237,36 @@ struct dynamic_sa_aes256 {
#define SA_AES256_CONTENTS 0x3e000082
#define SA_AES_CONTENTS 0x3e000002
/**
* Security Association (SA) for AES128 CCM
*/
struct dynamic_sa_aes128_ccm {
struct dynamic_sa_ctl ctrl;
__le32 key[4];
__le32 iv[4];
u32 state_ptr;
u32 reserved;
} __packed;
#define SA_AES128_CCM_LEN (sizeof(struct dynamic_sa_aes128_ccm)/4)
#define SA_AES128_CCM_CONTENTS 0x3e000042
#define SA_AES_CCM_CONTENTS 0x3e000002
/**
* Security Association (SA) for AES128_GCM
*/
struct dynamic_sa_aes128_gcm {
struct dynamic_sa_ctl ctrl;
__le32 key[4];
__le32 inner_digest[4];
__le32 iv[4];
u32 state_ptr;
u32 reserved;
} __packed;
#define SA_AES128_GCM_LEN (sizeof(struct dynamic_sa_aes128_gcm)/4)
#define SA_AES128_GCM_CONTENTS 0x3e000442
#define SA_AES_GCM_CONTENTS 0x3e000402
/**
* Security Association (SA) for HASH160: HMAC-SHA1
*/
@@ -274,4 +308,11 @@ static inline __le32 *get_dynamic_sa_key_field(struct dynamic_sa_ctl *cts)
return (__le32 *) ((unsigned long)cts + sizeof(struct dynamic_sa_ctl));
}
static inline __le32 *get_dynamic_sa_inner_digest(struct dynamic_sa_ctl *cts)
{
return (__le32 *) ((unsigned long)cts +
sizeof(struct dynamic_sa_ctl) +
cts->sa_contents.bf.key_size * 4);
}
#endif