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honor bad clusters list ($BadClus:$Bad), known bad sectors aren't tried to be saved anymore (Szaka) 

(Logical change 1.587)
edge.strict_endians
elisa-laajakaista.fi!szaka 2004-09-30 18:16:48 +00:00
parent 5d3b1b0f2b
commit ec00d338cb
1 changed files with 103 additions and 4 deletions
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107
ntfsprogs/ntfsclone.c
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@ -396,6 +396,11 @@ static s64 is_critical_metadata(ntfs_walk_clusters_ctx *image, runlist *rl)
s64 inode = image->ni->mft_no;
if (inode <= LAST_METADATA_INODE) {
/* Don't save bad sectors (both $Bad and unnamed are ignored */
if (inode == FILE_BadClus && image->ctx->attr->type == AT_DATA)
return 0;
if (inode != FILE_LogFile)
return rl->length;
@ -1220,6 +1225,97 @@ static void check_output_device(s64 input_size)
set_filesize(input_size);
}
static ntfs_attr_search_ctx *attr_get_search_ctx(ntfs_inode *ni, MFT_RECORD *mrec)
{
ntfs_attr_search_ctx *ret;
if ((ret = ntfs_attr_get_search_ctx(ni, mrec)) == NULL)
perr_printf("ntfs_attr_get_search_ctx");
return ret;
}
static int str2unicode(const char *aname, ntfschar **ustr, int *len)
{
if (aname && ((*len = ntfs_mbstoucs(aname, ustr, 0)) == -1)) {
perr_printf("Unable to convert '%s' to Unicode", aname);
return -1;
}
if (!*ustr || !*len) {
*ustr = AT_UNNAMED;
*len = 0;
}
return 0;
}
/**
* lookup_data_attr
*
* Find the $DATA attribute (with or without a name) for the given ntfs inode.
*/
static ntfs_attr_search_ctx *lookup_data_attr(ntfs_inode *ni, const char *aname)
{
ntfs_attr_search_ctx *ctx;
ntfschar *ustr = NULL;
int len = 0;
if ((ctx = attr_get_search_ctx(ni, NULL)) == NULL)
return NULL;
if (str2unicode(aname, &ustr, &len) == -1)
goto error_out;
if (ntfs_attr_lookup(AT_DATA, ustr, len, 0, 0, NULL, 0, ctx)) {
perr_printf("ntfs_attr_lookup");
goto error_out;
}
if (ustr != AT_UNNAMED)
free(ustr);
return ctx;
error_out:
ntfs_attr_put_search_ctx(ctx);
return NULL;
}
static void ignore_bad_clusters(ntfs_walk_clusters_ctx *image)
{
ntfs_inode *ni;
ntfs_attr_search_ctx *ctx = NULL;
runlist *rl;
s64 nr_bad_clusters = 0;
if (!(ni = ntfs_inode_open(vol, FILE_BadClus)))
perr_exit("ntfs_open_inode");
if ((ctx = lookup_data_attr(ni, "$Bad")) == NULL)
exit(1);
if (!(rl = ntfs_mapping_pairs_decompress(vol, ctx->attr, NULL)))
perr_exit("ntfs_mapping_pairs_decompress");
for (; rl->length; rl++) {
s64 lcn = rl->lcn;
if (lcn == LCN_HOLE || lcn < 0)
continue;
for (; lcn < rl->lcn + rl->length; lcn++, nr_bad_clusters++) {
if (ntfs_bit_get_and_set(lcn_bitmap.bm, lcn, 0))
image->inuse--;
}
}
if (nr_bad_clusters)
Printf("WARNING: The disk has %lld or more bad sectors"
" (hardware faults).\n", nr_bad_clusters);
ntfs_attr_put_search_ctx(ctx);
if (ntfs_inode_close(ni))
perr_exit("ntfs_inode_close failed for $BadClus");
}
int main(int argc, char **argv)
{
ntfs_walk_clusters_ctx image;
@ -1279,16 +1375,19 @@ int main(int argc, char **argv)
compare_bitmaps(&lcn_bitmap);
print_disk_usage(vol->cluster_size, vol->nr_clusters, image.inuse);
ignore_bad_clusters(&image);
if (opt.save_image)
initialise_image_hdr(device_size, image.inuse);
/* FIXME: save backup boot sector */
if (opt.std_out || !opt.metadata_only) {
s64 nr_clusters = (opt.std_out && !opt.save_image)
? vol->nr_clusters : image.inuse;
clone_ntfs(nr_clusters);
s64 nr_clusters_to_save = image.inuse;
if (opt.std_out && !opt.save_image)
nr_clusters_to_save = vol->nr_clusters;
clone_ntfs(nr_clusters_to_save);
fsync_clone(fd_out);
exit(0);
}