crypto: rng - Add crypto_rng_set_entropy
This patch adds the function crypto_rng_set_entropy. It is only
meant to be used by testmgr when testing RNG implementations by
providing fixed entropy data in order to verify test vectors.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index 133f044..cc22e52 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -32,6 +32,8 @@
* up a new state, the seed must be provided by the
* consumer while invoking this function. The required
* size of the seed is defined with @seedsize .
+ * @set_ent: Set entropy that would otherwise be obtained from
+ * entropy source. Internal use only.
* @seedsize: The seed size required for a random number generator
* initialization defined with this variable. Some
* random number generators does not require a seed
@@ -45,6 +47,8 @@
const u8 *src, unsigned int slen,
u8 *dst, unsigned int dlen);
int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
+ void (*set_ent)(struct crypto_rng *tfm, const u8 *data,
+ unsigned int len);
unsigned int seedsize;