From 577aae140e05f2b7cd140926443517260c0132b7 Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Date: Fri, 29 May 2020 19:27:28 +0200
Subject: Block processor: add flags to manage hashing & sparse block detection
This commit adds 2 new user settable flags to the block processor:
- A flag to ignore sparse blocks and treat them like normal
data blocks.
- A flag to disable checksum computation altogether.
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
include/sqfs/block.h | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
(limited to 'include/sqfs')
diff --git a/include/sqfs/block.h b/include/sqfs/block.h
index 7cc815c..582f128 100644
--- a/include/sqfs/block.h
+++ b/include/sqfs/block.h
@@ -96,6 +96,19 @@ typedef enum {
*/
SQFS_BLK_DONT_DEDUPLICATE = 0x0008,
+ /**
+ * @brief Supress sparse block detection.
+ *
+ * If set, sparse blocks are no longer checked and flagged as such and
+ * are instead processed like normal blocks.
+ */
+ SQFS_BLK_IGNORE_SPARSE = 0x0010,
+
+ /**
+ * @brief Don't compute block data checksums.
+ */
+ SQFS_BLK_DONT_HASH = 0x0020,
+
/**
* @brief Set by the @ref sqfs_block_processor_t if it determines a
* block of a file to be sparse, i.e. only zero bytes.
@@ -135,7 +148,7 @@ typedef enum {
/**
* @brief The combination of all flags that are user settable.
*/
- SQFS_BLK_USER_SETTABLE_FLAGS = 0x000F,
+ SQFS_BLK_USER_SETTABLE_FLAGS = 0x003F,
} SQFS_BLK_FLAGS;
#endif /* SQFS_BLOCK_H */
--
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