int
jfs_ValidateFEAList (
FEALIST *pfeal,
ULONG *poError)
{
USHORT cbNeeded = 0; /* count of storage bytes needed */
USHORT cbLeft; /* count of bytes left in FEA list */
PFEA pfea = pfeal->list; /* pointer to current FEA */
USHORT cbFEA; /* count of bytes in current FEA */
if ((cbLeft = (USHORT) pfeal->cbList - sizeof (pfeal->cbList)) == 0)
return 0;
do {
/* check for our reserved bits
*/
if (pfea->fEA & ~(FEA_NEEDEA) || cbLeft < sizeof *pfea)
return ERROR_EA_LIST_INCONSISTENT;
cbFEA = FEA_SIZE (pfea);
pfea = NEXT_FEA (pfea);
if (cbLeft < cbFEA)
{
*poError = (((char *) pfea) - ((char *) pfeal));
return ERROR_EA_LIST_INCONSISTENT;
}
} while ((cbLeft -= cbFEA) > 0);
return 0;
}
int jfs_ValidateFEAList(struct FEALIST *pfeal, int size, unsigned long *poError)
{
unsigned int cbLeft; /* count of bytes left in FEA list */
struct FEA *pfea = pfeal->list; /* pointer to current FEA */
unsigned int cbFEA; /* count of bytes in current FEA */
cbLeft = __le32_to_cpu(pfeal->cbList);
if (size != cbLeft)
return ERROR_EA_LIST_INCONSISTENT;
cbLeft -= sizeof (pfeal->cbList);
if (cbLeft == 0)
return 0;
do {
/* check for our reserved bits
*/
if (pfea->fEA & ~(FEA_NEEDEA) || cbLeft < sizeof *pfea)
return ERROR_EA_LIST_INCONSISTENT;
cbFEA = FEA_SIZE(pfea);
pfea = NEXT_FEA(pfea);
if (cbLeft < cbFEA) {
*poError = (((char *) pfea) - ((char *) pfeal));
return ERROR_EA_LIST_INCONSISTENT;
}
} while ((cbLeft -= cbFEA) > 0);
return 0;
}
