1 files changed, 79 insertions, 0 deletions
diff --git a/extra/mariabackup/xbcrypt.h b/extra/mariabackup/xbcrypt.h
new file mode 100644
index 00000000000..0e832266847
--- /dev/null
+++ b/extra/mariabackup/xbcrypt.h
@@ -0,0 +1,79 @@
+/******************************************************
+Copyright (c) 2011 Percona LLC and/or its affiliates.
+
+Encryption interface for XtraBackup.
+
+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; version 2 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+
+*******************************************************/
+
+#ifndef XBCRYPT_H
+#define XBCRYPT_H
+
+#include <my_base.h>
+#include "common.h"
+
+#define XB_CRYPT_CHUNK_MAGIC1 "XBCRYP01"
+#define XB_CRYPT_CHUNK_MAGIC2 "XBCRYP02"
+#define XB_CRYPT_CHUNK_MAGIC3 "XBCRYP03" /* must be same size as ^^ */
+#define XB_CRYPT_CHUNK_MAGIC_CURRENT XB_CRYPT_CHUNK_MAGIC3
+#define XB_CRYPT_CHUNK_MAGIC_SIZE (sizeof(XB_CRYPT_CHUNK_MAGIC1)-1)
+
+#define XB_CRYPT_HASH GCRY_MD_SHA256
+#define XB_CRYPT_HASH_LEN 32
+
+/******************************************************************************
+Write interface */
+typedef struct xb_wcrypt_struct xb_wcrypt_t;
+
+/* Callback on write for i/o, must return # of bytes written or -1 on error */
+typedef ssize_t xb_crypt_write_callback(void *userdata,
+					const void *buf, size_t len);
+
+xb_wcrypt_t *xb_crypt_write_open(void *userdata,
+				 xb_crypt_write_callback *onwrite);
+
+/* Takes buffer, original length, encrypted length iv and iv length, formats
+   output buffer and calls write callback.
+   Returns 0 on success, 1 on error */
+int xb_crypt_write_chunk(xb_wcrypt_t *crypt, const void *buf, size_t olen,
+			 size_t elen, const void *iv, size_t ivlen);
+
+/* Returns 0 on success, 1 on error */
+int xb_crypt_write_close(xb_wcrypt_t *crypt);
+
+/******************************************************************************
+Read interface */
+typedef struct xb_rcrypt_struct xb_rcrypt_t;
+
+/* Callback on read for i/o, must return # of bytes read or -1 on error */
+typedef size_t xb_crypt_read_callback(void *userdata, void *buf, size_t len);
+
+xb_rcrypt_t *xb_crypt_read_open(void *userdata,
+				  xb_crypt_read_callback *onread);
+
+typedef enum {
+	XB_CRYPT_READ_CHUNK,
+	XB_CRYPT_READ_INCOMPLETE,
+	XB_CRYPT_READ_EOF,
+	XB_CRYPT_READ_ERROR
+} xb_rcrypt_result_t;
+
+xb_rcrypt_result_t xb_crypt_read_chunk(xb_rcrypt_t *crypt, void **buf,
+				       size_t *olen, size_t *elen, void **iv,
+				       size_t *ivlen, my_bool *hash_appended);
+
+int xb_crypt_read_close(xb_rcrypt_t *crypt);
+
+#endif