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envfs: introduce version major and minor 

they are store in the super block at byte 16th and 17th.

set the verison at 0.1

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2012-08-21 20:47:58 +08:00
parent f7edad7cbf
commit ff3058e3bb
2 changed files with 8 additions and 1 deletions
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2
common/environment.c
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@ -125,6 +125,8 @@ int envfs_save(char *filename, char *dirname)
super = (struct envfs_super *)buf;
super->magic = ENVFS_32(ENVFS_MAGIC);
super->major = ENVFS_MAJOR;
super->minor = ENVFS_MINOR;
super->size = ENVFS_32(size);
/* second pass: copy files to buffer */

7
include/envfs.h
View File

@ -5,6 +5,9 @@
#include <asm/byteorder.h>
#endif
#define ENVFS_MAJOR 0
#define ENVFS_MINOR 1
#define ENVFS_MAGIC 0x798fba79 /* some random number */
#define ENVFS_INODE_MAGIC 0x67a8c78d
#define ENVFS_END_MAGIC 0x6a87d6cd
@ -29,8 +32,10 @@ struct envfs_super {
uint32_t priority;
uint32_t crc; /* crc for the data */
uint32_t size; /* size of data */
uint8_t major; /* major */
uint8_t minor; /* minor */
uint16_t future; /* reserved for future use */
uint32_t flags; /* feature flags */
uint32_t future; /* reserved for future use */
uint32_t sb_crc; /* crc for the superblock */
};