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-rw-r--r--fs/smb/server/crypto_ctx.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/fs/smb/server/crypto_ctx.h b/fs/smb/server/crypto_ctx.h
new file mode 100644
index 000000000000..4a367c62f653
--- /dev/null
+++ b/fs/smb/server/crypto_ctx.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019 Samsung Electronics Co., Ltd.
+ */
+
+#ifndef __CRYPTO_CTX_H__
+#define __CRYPTO_CTX_H__
+
+#include <crypto/hash.h>
+#include <crypto/aead.h>
+
+enum {
+ CRYPTO_SHASH_HMACMD5 = 0,
+ CRYPTO_SHASH_HMACSHA256,
+ CRYPTO_SHASH_CMACAES,
+ CRYPTO_SHASH_SHA256,
+ CRYPTO_SHASH_SHA512,
+ CRYPTO_SHASH_MAX,
+};
+
+enum {
+ CRYPTO_AEAD_AES_GCM = 16,
+ CRYPTO_AEAD_AES_CCM,
+ CRYPTO_AEAD_MAX,
+};
+
+enum {
+ CRYPTO_BLK_ECBDES = 32,
+ CRYPTO_BLK_MAX,
+};
+
+struct ksmbd_crypto_ctx {
+ struct list_head list;
+
+ struct shash_desc *desc[CRYPTO_SHASH_MAX];
+ struct crypto_aead *ccmaes[CRYPTO_AEAD_MAX];
+};
+
+#define CRYPTO_HMACMD5(c) ((c)->desc[CRYPTO_SHASH_HMACMD5])
+#define CRYPTO_HMACSHA256(c) ((c)->desc[CRYPTO_SHASH_HMACSHA256])
+#define CRYPTO_CMACAES(c) ((c)->desc[CRYPTO_SHASH_CMACAES])
+#define CRYPTO_SHA256(c) ((c)->desc[CRYPTO_SHASH_SHA256])
+#define CRYPTO_SHA512(c) ((c)->desc[CRYPTO_SHASH_SHA512])
+
+#define CRYPTO_HMACMD5_TFM(c) ((c)->desc[CRYPTO_SHASH_HMACMD5]->tfm)
+#define CRYPTO_HMACSHA256_TFM(c)\
+ ((c)->desc[CRYPTO_SHASH_HMACSHA256]->tfm)
+#define CRYPTO_CMACAES_TFM(c) ((c)->desc[CRYPTO_SHASH_CMACAES]->tfm)
+#define CRYPTO_SHA256_TFM(c) ((c)->desc[CRYPTO_SHASH_SHA256]->tfm)
+#define CRYPTO_SHA512_TFM(c) ((c)->desc[CRYPTO_SHASH_SHA512]->tfm)
+
+#define CRYPTO_GCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_GCM])
+#define CRYPTO_CCM(c) ((c)->ccmaes[CRYPTO_AEAD_AES_CCM])
+
+void ksmbd_release_crypto_ctx(struct ksmbd_crypto_ctx *ctx);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacmd5(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_hmacsha256(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_cmacaes(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha512(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_sha256(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_gcm(void);
+struct ksmbd_crypto_ctx *ksmbd_crypto_ctx_find_ccm(void);
+void ksmbd_crypto_destroy(void);
+int ksmbd_crypto_create(void);
+
+#endif /* __CRYPTO_CTX_H__ */