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-rw-r--r--include/crypto/internal/skcipher.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/include/crypto/internal/skcipher.h b/include/crypto/internal/skcipher.h
index 453e867b4bd9..9de6032209cb 100644
--- a/include/crypto/internal/skcipher.h
+++ b/include/crypto/internal/skcipher.h
@@ -205,5 +205,20 @@ static inline unsigned int crypto_skcipher_alg_max_keysize(
return alg->max_keysize;
}
+/* Helpers for simple block cipher modes of operation */
+struct skcipher_ctx_simple {
+ struct crypto_cipher *cipher; /* underlying block cipher */
+};
+static inline struct crypto_cipher *
+skcipher_cipher_simple(struct crypto_skcipher *tfm)
+{
+ struct skcipher_ctx_simple *ctx = crypto_skcipher_ctx(tfm);
+
+ return ctx->cipher;
+}
+struct skcipher_instance *
+skcipher_alloc_instance_simple(struct crypto_template *tmpl, struct rtattr **tb,
+ struct crypto_alg **cipher_alg_ret);
+
#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */