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Remove checks for BOOTSIG[23] from FAT32 bootblocks.

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There seems to be very little documentary evidence outside this
implementation to suggest a these checks are neccessary, and more
than one camera-formatted flash disk fails the check, but mounts
successfully on most other systems.

Reviewed By: bde@
This commit is contained in:
Peter Edwards 2005-09-29 14:09:46 +00:00
parent 482b02b3f3
commit 20c5ba3685
2 changed files with 2 additions and 8 deletions
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6
sys/fs/msdosfs/bootsect.h
View File

@ -61,15 +61,11 @@ struct bootsector710 {
int8_t bsOEMName[8]; /* OEM name and version */
int8_t bsBPB[53]; /* BIOS parameter block */
int8_t bsExt[26]; /* Bootsector Extension */
int8_t bsBootCode[418]; /* pad so structure is 512b */
u_int8_t bsBootSectSig2; /* 2 & 3 are only defined for FAT32? */
u_int8_t bsBootSectSig3;
int8_t bsBootCode[420]; /* pad so structure is 512b */
u_int8_t bsBootSectSig0;
u_int8_t bsBootSectSig1;
#define BOOTSIG0 0x55
#define BOOTSIG1 0xaa
#define BOOTSIG2 0
#define BOOTSIG3 0
};
union bootsector {

4
sys/fs/msdosfs/msdosfs_vfsops.c
View File

@ -510,9 +510,7 @@ mountmsdosfs(devvp, mp, td)
#endif /* !MSDOSFS_LARGE */
if (pmp->pm_RootDirEnts == 0) {
if (bsp->bs710.bsBootSectSig2 != BOOTSIG2
|| bsp->bs710.bsBootSectSig3 != BOOTSIG3
|| pmp->pm_Sectors
if (pmp->pm_Sectors
|| pmp->pm_FATsecs
|| getushort(b710->bpbFSVers)) {
error = EINVAL;