The specification which crypto facility is required for an algorithm is added
as a parameter to the availability check which is done before an algorithm is
registered. With this change it is easier to add new algorithms that require
different facilities.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
- if (crypt_s390_func_available(KM_AES_128_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_128_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_128;
keylen_flag |= AES_KEYLEN_128;
- if (crypt_s390_func_available(KM_AES_192_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_192_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_192;
keylen_flag |= AES_KEYLEN_192;
- if (crypt_s390_func_available(KM_AES_256_ENCRYPT))
+ if (crypt_s390_func_available(KM_AES_256_ENCRYPT, CRYPT_S390_MSA))
keylen_flag |= AES_KEYLEN_256;
if (!keylen_flag)
keylen_flag |= AES_KEYLEN_256;
if (!keylen_flag)
#define CRYPT_S390_PRIORITY 300
#define CRYPT_S390_COMPOSITE_PRIORITY 400
#define CRYPT_S390_PRIORITY 300
#define CRYPT_S390_COMPOSITE_PRIORITY 400
+#define CRYPT_S390_MSA 0x1
+#define CRYPT_S390_MSA3 0x2
+#define CRYPT_S390_MSA4 0x4
+
/* s390 cryptographic operations */
enum crypt_s390_operations {
CRYPT_S390_KM = 0x0100,
/* s390 cryptographic operations */
enum crypt_s390_operations {
CRYPT_S390_KM = 0x0100,
*
* Returns 1 if func available; 0 if func or op in general not available
*/
*
* Returns 1 if func available; 0 if func or op in general not available
*/
-static inline int crypt_s390_func_available(int func)
+static inline int crypt_s390_func_available(int func,
+ unsigned int facility_mask)
{
unsigned char status[16];
int ret;
{
unsigned char status[16];
int ret;
- /* check if CPACF facility (bit 17) is available */
- if (!test_facility(17))
+ if (facility_mask & CRYPT_S390_MSA && !test_facility(17))
+ return 0;
+ if (facility_mask & CRYPT_S390_MSA3 && !test_facility(76))
+ return 0;
+ if (facility_mask & CRYPT_S390_MSA4 && !test_facility(77))
return 0;
switch (func & CRYPT_S390_OP_MASK) {
return 0;
switch (func & CRYPT_S390_OP_MASK) {
- if (!crypt_s390_func_available(KM_DEA_ENCRYPT) ||
- !crypt_s390_func_available(KM_TDEA_192_ENCRYPT))
+ if (!crypt_s390_func_available(KM_DEA_ENCRYPT, CRYPT_S390_MSA) ||
+ !crypt_s390_func_available(KM_TDEA_192_ENCRYPT, CRYPT_S390_MSA))
return -EOPNOTSUPP;
ret = crypto_register_alg(&des_alg);
return -EOPNOTSUPP;
ret = crypto_register_alg(&des_alg);
int ret;
/* check if the CPU has a PRNG */
int ret;
/* check if the CPU has a PRNG */
- if (!crypt_s390_func_available(KMC_PRNG))
+ if (!crypt_s390_func_available(KMC_PRNG, CRYPT_S390_MSA))
return -EOPNOTSUPP;
if (prng_chunk_size < 8)
return -EOPNOTSUPP;
if (prng_chunk_size < 8)
static int __init sha1_s390_init(void)
{
static int __init sha1_s390_init(void)
{
- if (!crypt_s390_func_available(KIMD_SHA_1))
+ if (!crypt_s390_func_available(KIMD_SHA_1, CRYPT_S390_MSA))
return -EOPNOTSUPP;
return crypto_register_shash(&alg);
}
return -EOPNOTSUPP;
return crypto_register_shash(&alg);
}
static int sha256_s390_init(void)
{
static int sha256_s390_init(void)
{
- if (!crypt_s390_func_available(KIMD_SHA_256))
+ if (!crypt_s390_func_available(KIMD_SHA_256, CRYPT_S390_MSA))
return -EOPNOTSUPP;
return crypto_register_shash(&alg);
return -EOPNOTSUPP;
return crypto_register_shash(&alg);
- if (!crypt_s390_func_available(KIMD_SHA_512))
+ if (!crypt_s390_func_available(KIMD_SHA_512, CRYPT_S390_MSA))
return -EOPNOTSUPP;
if ((ret = crypto_register_shash(&sha512_alg)) < 0)
goto out;
return -EOPNOTSUPP;
if ((ret = crypto_register_shash(&sha512_alg)) < 0)
goto out;