crypto: drbg - add MODULE_ALIAS for all DRBG types

The kernel module drbg.ko is currently not loaded automatically when a
DRBG is requested by a consumer. This is due to missing MODULE_ALIAS
flags for each of the implemented DRBG types.

This patch adds aliases for each of the 22 defined DRBGs.
Signed-off-by: NStephan Mueller <smueller@chronox.de>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

crypto/drbg.c

@@ -291,6 +291,13 @@ static inline void drbg_cpu_to_be32(__u32 val, unsigned char *buf)
 
 #ifdef CONFIG_CRYPTO_DRBG_CTR
 #define CRYPTO_DRBG_CTR_STRING "CTR "
+MODULE_ALIAS("drbg_pr_ctr_aes256");
+MODULE_ALIAS("drbg_nopr_ctr_aes256");
+MODULE_ALIAS("drbg_pr_ctr_aes192");
+MODULE_ALIAS("drbg_nopr_ctr_aes192");
+MODULE_ALIAS("drbg_pr_ctr_aes128");
+MODULE_ALIAS("drbg_nopr_ctr_aes128");
+
 static int drbg_kcapi_sym(struct drbg_state *drbg, const unsigned char *key,
 			  unsigned char *outval, const struct drbg_string *in);
 static int drbg_init_sym_kernel(struct drbg_state *drbg);
@@ -651,6 +658,15 @@ static int drbg_fini_hash_kernel(struct drbg_state *drbg);
 
 #ifdef CONFIG_CRYPTO_DRBG_HMAC
 #define CRYPTO_DRBG_HMAC_STRING "HMAC "
+MODULE_ALIAS("drbg_pr_hmac_sha512");
+MODULE_ALIAS("drbg_nopr_hmac_sha512");
+MODULE_ALIAS("drbg_pr_hmac_sha384");
+MODULE_ALIAS("drbg_nopr_hmac_sha384");
+MODULE_ALIAS("drbg_pr_hmac_sha256");
+MODULE_ALIAS("drbg_nopr_hmac_sha256");
+MODULE_ALIAS("drbg_pr_hmac_sha1");
+MODULE_ALIAS("drbg_nopr_hmac_sha1");
+
 /* update function of HMAC DRBG as defined in 10.1.2.2 */
 static int drbg_hmac_update(struct drbg_state *drbg, struct list_head *seed,
 			    int reseed)
@@ -762,6 +778,15 @@ static struct drbg_state_ops drbg_hmac_ops = {
 
 #ifdef CONFIG_CRYPTO_DRBG_HASH
 #define CRYPTO_DRBG_HASH_STRING "HASH "
+MODULE_ALIAS("drbg_pr_sha512");
+MODULE_ALIAS("drbg_nopr_sha512");
+MODULE_ALIAS("drbg_pr_sha384");
+MODULE_ALIAS("drbg_nopr_sha384");
+MODULE_ALIAS("drbg_pr_sha256");
+MODULE_ALIAS("drbg_nopr_sha256");
+MODULE_ALIAS("drbg_pr_sha1");
+MODULE_ALIAS("drbg_nopr_sha1");
+
 /*
  * Increment buffer
  *