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authorbigbiff <bigbiff@teamw.in>2015-01-02 01:44:14 +0100
committerDees Troy <dees_troy@teamw.in>2015-01-05 04:38:42 +0100
commit7b4c7a681cc4c0a53dc8a8baf4853e921cfbf5de (patch)
treefb69cb515cb4ab675d5850684cc402100b7a2a22 /libblkid/ntfs.c
parentcrypto: remove unused libs and clean up makefile (diff)
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Diffstat (limited to 'libblkid/ntfs.c')
-rw-r--r--libblkid/ntfs.c224
1 files changed, 0 insertions, 224 deletions
diff --git a/libblkid/ntfs.c b/libblkid/ntfs.c
deleted file mode 100644
index 41c6b9cd5..000000000
--- a/libblkid/ntfs.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
- * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
- *
- * This file may be redistributed under the terms of the
- * GNU Lesser General Public License.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <inttypes.h>
-
-#include "superblocks.h"
-
-struct ntfs_bios_parameters {
- uint16_t sector_size; /* Size of a sector in bytes. */
- uint8_t sectors_per_cluster; /* Size of a cluster in sectors. */
- uint16_t reserved_sectors; /* zero */
- uint8_t fats; /* zero */
- uint16_t root_entries; /* zero */
- uint16_t sectors; /* zero */
- uint8_t media_type; /* 0xf8 = hard disk */
- uint16_t sectors_per_fat; /* zero */
- uint16_t sectors_per_track; /* irrelevant */
- uint16_t heads; /* irrelevant */
- uint32_t hidden_sectors; /* zero */
- uint32_t large_sectors; /* zero */
-} __attribute__ ((__packed__));
-
-struct ntfs_super_block {
- uint8_t jump[3];
- uint8_t oem_id[8]; /* magic string */
-
- struct ntfs_bios_parameters bpb;
-
- uint16_t unused[2];
- uint64_t number_of_sectors;
- uint64_t mft_cluster_location;
- uint64_t mft_mirror_cluster_location;
- int8_t clusters_per_mft_record;
- uint8_t reserved1[3];
- int8_t cluster_per_index_record;
- uint8_t reserved2[3];
- uint64_t volume_serial;
- uint32_t checksum;
-} __attribute__((packed));
-
-struct master_file_table_record {
- uint32_t magic;
- uint16_t usa_ofs;
- uint16_t usa_count;
- uint64_t lsn;
- uint16_t sequence_number;
- uint16_t link_count;
- uint16_t attrs_offset;
- uint16_t flags;
- uint32_t bytes_in_use;
- uint32_t bytes_allocated;
-} __attribute__((__packed__));
-
-struct file_attribute {
- uint32_t type;
- uint32_t len;
- uint8_t non_resident;
- uint8_t name_len;
- uint16_t name_offset;
- uint16_t flags;
- uint16_t instance;
- uint32_t value_len;
- uint16_t value_offset;
-} __attribute__((__packed__));
-
-#define MFT_RECORD_VOLUME 3
-#define NTFS_MAX_CLUSTER_SIZE (64 * 1024)
-
-enum {
- MFT_RECORD_ATTR_VOLUME_NAME = cpu_to_le32(0x60),
- MFT_RECORD_ATTR_END = cpu_to_le32(0xffffffff)
-};
-
-static int probe_ntfs(blkid_probe pr, const struct blkid_idmag *mag)
-{
- struct ntfs_super_block *ns;
- struct master_file_table_record *mft;
-
- uint32_t sectors_per_cluster, mft_record_size, attr_off;
- uint16_t sector_size;
- uint64_t nr_clusters, off;
- unsigned char *buf_mft;
-
- ns = blkid_probe_get_sb(pr, mag, struct ntfs_super_block);
- if (!ns)
- return -1;
-
- /*
- * Check bios parameters block
- */
- sector_size = le16_to_cpu(ns->bpb.sector_size);
- sectors_per_cluster = ns->bpb.sectors_per_cluster;
-
- if (sector_size < 256 || sector_size > 4096)
- return 1;
-
- switch (sectors_per_cluster) {
- case 1: case 2: case 4: case 8: case 16: case 32: case 64: case 128:
- break;
- default:
- return 1;
- }
-
- if ((uint16_t) le16_to_cpu(ns->bpb.sector_size) *
- ns->bpb.sectors_per_cluster > NTFS_MAX_CLUSTER_SIZE)
- return 1;
-
- /* Unused fields must be zero */
- if (le16_to_cpu(ns->bpb.reserved_sectors)
- || le16_to_cpu(ns->bpb.root_entries)
- || le16_to_cpu(ns->bpb.sectors)
- || le16_to_cpu(ns->bpb.sectors_per_fat)
- || le32_to_cpu(ns->bpb.large_sectors)
- || ns->bpb.fats)
- return 1;
-
- if ((uint8_t) ns->clusters_per_mft_record < 0xe1
- || (uint8_t) ns->clusters_per_mft_record > 0xf7) {
-
- switch (ns->clusters_per_mft_record) {
- case 1: case 2: case 4: case 8: case 16: case 32: case 64:
- break;
- default:
- return 1;
- }
- }
-
- if (ns->clusters_per_mft_record > 0)
- mft_record_size = ns->clusters_per_mft_record *
- sectors_per_cluster * sector_size;
- else
- mft_record_size = 1 << (0 - ns->clusters_per_mft_record);
-
- nr_clusters = le64_to_cpu(ns->number_of_sectors) / sectors_per_cluster;
-
- if ((le64_to_cpu(ns->mft_cluster_location) > nr_clusters) ||
- (le64_to_cpu(ns->mft_mirror_cluster_location) > nr_clusters))
- return 1;
-
-
- off = le64_to_cpu(ns->mft_cluster_location) * sector_size *
- sectors_per_cluster;
-
- DBG(DEBUG_LOWPROBE, printf("NTFS: sector_size=%d, mft_record_size=%d, "
- "sectors_per_cluster=%d, nr_clusters=%ju "
- "cluster_offset=%jd\n",
- (int) sector_size, mft_record_size,
- sectors_per_cluster, nr_clusters,
- off));
-
- buf_mft = blkid_probe_get_buffer(pr, off, mft_record_size);
- if (!buf_mft)
- return 1;
-
- if (memcmp(buf_mft, "FILE", 4))
- return 1;
-
- off += MFT_RECORD_VOLUME * mft_record_size;
-
- buf_mft = blkid_probe_get_buffer(pr, off, mft_record_size);
- if (!buf_mft)
- return 1;
-
- if (memcmp(buf_mft, "FILE", 4))
- return 1;
-
- mft = (struct master_file_table_record *) buf_mft;
- attr_off = le16_to_cpu(mft->attrs_offset);
-
- while (attr_off < mft_record_size &&
- attr_off <= le32_to_cpu(mft->bytes_allocated)) {
-
- uint32_t attr_len;
- struct file_attribute *attr;
-
- attr = (struct file_attribute *) (buf_mft + attr_off);
- attr_len = le32_to_cpu(attr->len);
- if (!attr_len)
- break;
-
- if (attr->type == MFT_RECORD_ATTR_END)
- break;
- if (attr->type == MFT_RECORD_ATTR_VOLUME_NAME) {
- unsigned int val_off = le16_to_cpu(attr->value_offset);
- unsigned int val_len = le32_to_cpu(attr->value_len);
- unsigned char *val = ((uint8_t *) attr) + val_off;
-
- blkid_probe_set_utf8label(pr, val, val_len, BLKID_ENC_UTF16LE);
- break;
- }
-
- if (UINT_MAX - attr_len < attr_off)
- break;
- attr_off += attr_len;
- }
-
- blkid_probe_sprintf_uuid(pr,
- (unsigned char *) &ns->volume_serial,
- sizeof(ns->volume_serial),
- "%016" PRIX64, le64_to_cpu(ns->volume_serial));
- return 0;
-}
-
-
-const struct blkid_idinfo ntfs_idinfo =
-{
- .name = "ntfs",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_ntfs,
- .magics =
- {
- { .magic = "NTFS ", .len = 8, .sboff = 3 },
- { NULL }
- }
-};
-