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Changeset 1776895 in mainline


Ignore:
Timestamp:
2011-12-11T15:03:59Z (10 years ago)
Author:
Maurizio Lombardi <m.lombardi85@…>
Branches:
lfn, master
Children:
80ec9b8
Parents:
92d9406
Message:

exfat: Add filesystem sanity check.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • uspace/srv/fs/exfat/exfat_fat.c

    r92d9406 r1776895  
    5050#include <malloc.h>
    5151#include <mem.h>
     52#include <str.h>
    5253
    5354
     
    541542int exfat_sanity_check(exfat_bs_t *bs, service_id_t service_id)
    542543{
    543         /* TODO */
     544        if (str_cmp((char const *)bs->oem_name, "EXFAT   "))
     545                return ENOTSUP;
     546        else if (uint16_t_le2host(bs->signature) != 0xAA55)
     547                return ENOTSUP;
     548        else if (uint32_t_le2host(bs->fat_sector_count) == 0)
     549                return ENOTSUP;
     550        else if (uint32_t_le2host(bs->data_clusters) == 0)
     551                return ENOTSUP;
     552        else if (bs->fat_count != 1)
     553                return ENOTSUP;
     554        else if ((bs->bytes_per_sector + bs->sec_per_cluster) > 25) {
     555                /* exFAT does not support cluster size > 32 Mb */
     556                return ENOTSUP;
     557        }
    544558        return EOK;
    545559}
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