Dear all
I am reading the (.) DOT on the freshly formatted ntfs volume which I format
from WindowsXP.
It gives me 64 file records in $MFT and I am reading the (.) DOT using the
code of dir.c in method
ntfs_inode_lookup_by_name(). The code is also posted at the end of email.
now what I have used this method in my code. I can read the (.) DOT and
INDEX_ROOT and INDEX_ALLOCATION and INDEX_ENTRY in both of index root and
index allocation.
But in the freshly formatted disk with only 1 - 4 file/folder (I have 2
directories A, B and 4 files a,b,c is in A,d is in B)
But when I read the (.) DOT it gives me nothing, the $ROOT_INDEX gives me
file name as $130 but there is nothing in its index_entry if (ie-flags &
INDEX_ENTRY_END) becuase the flag contains value 3, which is ok. But why I
can not read any thing from (.) DOT and where are the files/folders.
HOW TO READ THEM, HOW TO READ THE DATA of these files?
/* Find the index root attribute in the mft record. */
if (ntfs_attr_lookup(AT_INDEX_ROOT, NTFS_INDEX_I30, 4, CASE_SENSITIVE, 0,
NULL,
0, ctx)) {
ntfs_log_perror("Index root attribute missing in directory inode "
"0x%llx", (unsigned long long)dir_ni->mft_no);
goto put_err_out;
}
/* Get to the index root value. */
ir = (INDEX_ROOT*)((u8*)ctx->attr +
le16_to_cpu(ctx->attr->value_offset));
index_block_size = le32_to_cpu(ir->index_block_size);
if (index_block_size < NTFS_BLOCK_SIZE ||
index_block_size & (index_block_size - 1)) {
ntfs_log_debug("Index block size %u is invalid.\n",
(unsigned)index_block_size);
goto put_err_out;
}
index_end = (u8*)&ir->index + le32_to_cpu(ir->index.index_length);
/* The first index entry. */
for (;; ie = (INDEX_ENTRY*)((u8*)ie + le16_to_cpu(ie->length))) {
/* Bounds checks. */
if ((u8*)ie < (u8*)ctx->mrec || (u8*)ie +
sizeof(INDEX_ENTRY_HEADER) > index_end ||
(u8*)ie + le16_to_cpu(ie->key_length) >
index_end)
goto put_err_out;
/*
* The last entry cannot contain a name. It can however contain
* a pointer to a child node in the B+tree so we just break out.
*/
--
Regards:
Adnan Shaheen.
+92-321-518-0278
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