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nand-part: Reject wrong partition version.

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Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net>
This commit is contained in:
Michal Suchanek 2013-06-24 14:20:51 +00:00 committed by Henrik Nordstrom
parent f1eca9d438
commit c66667ff52
1 changed files with 13 additions and 0 deletions
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13
nand-part.c
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@ -49,6 +49,7 @@
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h> /* BLKRRPART */
#include "nand-part.h"
@ -96,6 +97,8 @@ __u32 calc_crc32(void * buffer, __u32 length)
MBR *_get_mbr(int fd, int mbr_num)
{
MBR *mbr;
const char * magic = "softw311";
unsigned version = 0x100;
/*request mbr space*/
mbr = malloc(sizeof(MBR));
@ -112,6 +115,16 @@ MBR *_get_mbr(int fd, int mbr_num)
/*checksum*/
printf("check partition table copy %d: ", mbr_num);
printmbrheader(mbr);
if(strncmp((char *)mbr->magic, magic, 8))
{
printf("magic %8.8s is not %8s\n", mbr->magic, magic);
return NULL;
}
if(mbr->version != version)
{
printf("version 0x%08x is not 0x%08x\n", mbr->version, version);
return NULL;
}
if(*(__u32 *)mbr == calc_crc32((__u32 *)mbr + 1,MBR_SIZE - 4))
{
printf("OK\n");