Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / crypto / aead.h

diff --git a/kernel/include/crypto/aead.h b/kernel/include/crypto/aead.h
new file mode 100644 (file)
index 0000000..94b19be
--- /dev/null
+++ b/kernel/include/crypto/aead.h
@@ -0,0 +1,105 @@
+/*
+ * AEAD: Authenticated Encryption with Associated Data
+ * 
+ * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option) 
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_AEAD_H
+#define _CRYPTO_AEAD_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+/**
+ *     struct aead_givcrypt_request - AEAD request with IV generation
+ *     @seq: Sequence number for IV generation
+ *     @giv: Space for generated IV
+ *     @areq: The AEAD request itself
+ */
+struct aead_givcrypt_request {
+       u64 seq;
+       u8 *giv;
+
+       struct aead_request areq;
+};
+
+static inline struct crypto_aead *aead_givcrypt_reqtfm(
+       struct aead_givcrypt_request *req)
+{
+       return crypto_aead_reqtfm(&req->areq);
+}
+
+static inline int crypto_aead_givencrypt(struct aead_givcrypt_request *req)
+{
+       struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
+       return crt->givencrypt(req);
+};
+
+static inline int crypto_aead_givdecrypt(struct aead_givcrypt_request *req)
+{
+       struct aead_tfm *crt = crypto_aead_crt(aead_givcrypt_reqtfm(req));
+       return crt->givdecrypt(req);
+};
+
+static inline void aead_givcrypt_set_tfm(struct aead_givcrypt_request *req,
+                                        struct crypto_aead *tfm)
+{
+       req->areq.base.tfm = crypto_aead_tfm(tfm);
+}
+
+static inline struct aead_givcrypt_request *aead_givcrypt_alloc(
+       struct crypto_aead *tfm, gfp_t gfp)
+{
+       struct aead_givcrypt_request *req;
+
+       req = kmalloc(sizeof(struct aead_givcrypt_request) +
+                     crypto_aead_reqsize(tfm), gfp);
+
+       if (likely(req))
+               aead_givcrypt_set_tfm(req, tfm);
+
+       return req;
+}
+
+static inline void aead_givcrypt_free(struct aead_givcrypt_request *req)
+{
+       kfree(req);
+}
+
+static inline void aead_givcrypt_set_callback(
+       struct aead_givcrypt_request *req, u32 flags,
+       crypto_completion_t compl, void *data)
+{
+       aead_request_set_callback(&req->areq, flags, compl, data);
+}
+
+static inline void aead_givcrypt_set_crypt(struct aead_givcrypt_request *req,
+                                          struct scatterlist *src,
+                                          struct scatterlist *dst,
+                                          unsigned int nbytes, void *iv)
+{
+       aead_request_set_crypt(&req->areq, src, dst, nbytes, iv);
+}
+
+static inline void aead_givcrypt_set_assoc(struct aead_givcrypt_request *req,
+                                          struct scatterlist *assoc,
+                                          unsigned int assoclen)
+{
+       aead_request_set_assoc(&req->areq, assoc, assoclen);
+}
+
+static inline void aead_givcrypt_set_giv(struct aead_givcrypt_request *req,
+                                        u8 *giv, u64 seq)
+{
+       req->giv = giv;
+       req->seq = seq;
+}
+
+#endif /* _CRYPTO_AEAD_H */