summaryrefslogtreecommitdiff
path: root/include/zfs/zio_checksum.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/zfs/zio_checksum.h')
-rw-r--r--include/zfs/zio_checksum.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/zfs/zio_checksum.h b/include/zfs/zio_checksum.h
new file mode 100644
index 0000000..0d5fce6
--- /dev/null
+++ b/include/zfs/zio_checksum.h
@@ -0,0 +1,50 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
+ *
+ * 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.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/*
+ * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZIO_CHECKSUM_H
+#define _SYS_ZIO_CHECKSUM_H
+
+/*
+ * Signature for checksum functions.
+ */
+typedef void zio_checksum_t(const void *data, uint64_t size,
+ zfs_endian_t endian, zio_cksum_t *zcp);
+
+/*
+ * Information about each checksum function.
+ */
+typedef struct zio_checksum_info {
+ zio_checksum_t *ci_func; /* checksum function for each byteorder */
+ int ci_correctable; /* number of correctable bits */
+ int ci_eck; /* uses zio embedded checksum? */
+ char *ci_name; /* descriptive name */
+} zio_checksum_info_t;
+
+extern void zio_checksum_SHA256(const void *, uint64_t,
+ zfs_endian_t endian, zio_cksum_t *);
+extern void fletcher_2_endian(const void *, uint64_t, zfs_endian_t endian,
+ zio_cksum_t *);
+extern void fletcher_4_endian(const void *, uint64_t, zfs_endian_t endian,
+ zio_cksum_t *);
+
+#endif /* _SYS_ZIO_CHECKSUM_H */