ntfs/libntfs/mft.c

252  * @mrec:	address of pointer in which to return the mft record
261  * *@mrec is then set to point to the buffer.
264  * mft record, i.e. *@attr is a pointer into *@mrec.
274  * Note: Caller has to free *@mrec when finished.
280 		MFT_RECORD **mrec, ATTR_RECORD **attr)
284 	if (!vol || !mrec) {
286 		ntfs_log_perror("%s: mrec=%p", __FUNCTION__, mrec);
290 	m = *mrec;
309 	*mrec = m;
314 	if (m != *mrec)
323  * @mrec:	destination buffer of size >= @vol->mft_record_size bytes
333 		MFT_RECORD *mrec)
337 	if (!vol || !mrec) {
339 		ntfs_log_perror("%s: mrec=%p", __FUNCTION__, mrec);
344 		mrec->usa_ofs = cpu_to_le16((sizeof(MFT_RECORD_OLD) + 1) & ~1);
352 		mrec->usa_ofs = cpu_to_le16((sizeof(MFT_RECORD) + 1) & ~1);
357 		mrec->reserved = cpu_to_le16(0);
358 		mrec->mft_record_number = cpu_to_le32(MREF(mref));
360 	mrec->magic = magic_FILE;
362 		mrec->usa_count = cpu_to_le16(vol->mft_record_size /
365 		mrec->usa_count = cpu_to_le16(1);
374 	*(u16*)((u8*)mrec + le16_to_cpu(mrec->usa_ofs)) = cpu_to_le16(1);
375 	mrec->lsn = cpu_to_le64(0ull);
376 	mrec->sequence_number = cpu_to_le16(1);
377 	mrec->link_count = cpu_to_le16(0);
379 	mrec->attrs_offset = cpu_to_le16((le16_to_cpu(mrec->usa_ofs) +
380 			(le16_to_cpu(mrec->usa_count) << 1) + 7) & ~7);
381 	mrec->flags = cpu_to_le16(0);
386 	mrec->bytes_in_use = cpu_to_le32((le16_to_cpu(mrec->attrs_offset) + 8 +
388 	mrec->bytes_allocated = cpu_to_le32(vol->mft_record_size);
389 	mrec->base_mft_record = cpu_to_le64((MFT_REF)0);
390 	mrec->next_attr_instance = cpu_to_le16(0);
391 	a = (ATTR_RECORD*)((u8*)mrec + le16_to_cpu(mrec->attrs_offset));
395 	memset((u8*)a + 8, 0, vol->mft_record_size - ((u8*)a + 8 - (u8*)mrec));
714 	m = ctx->mrec;
801 	m = ctx->mrec;
1063 	m = ctx->mrec;
1157 	m = ctx->mrec;
1440 	ni->mrec = m;
1449 					le16_to_cpu(base_ni->mrec->sequence_number));
1741 	ni->mrec = m;
1751 				le16_to_cpu(base_ni->mrec->sequence_number));
1836 	ni->mrec->flags &= ~MFT_RECORD_IN_USE;
1839 	old_seq_no = ni->mrec->sequence_number;
1845 	ni->mrec->sequence_number = cpu_to_le16(seq_no);
1879 	ni->mrec->flags |= MFT_RECORD_IN_USE;
1880 	ni->mrec->sequence_number = old_seq_no;
1888  * @mrec:	pointer to an mft record
1892 int ntfs_mft_usn_dec(MFT_RECORD *mrec)
1897 	if (!mrec) {
1901 	usnp = (le16*)((char*)mrec + le16_to_cpu(mrec->usa_ofs));