summaryrefslogtreecommitdiffstats
path: root/libblkid/hfs.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--libblkid/hfs.c321
1 files changed, 0 insertions, 321 deletions
diff --git a/libblkid/hfs.c b/libblkid/hfs.c
deleted file mode 100644
index 6d960e9e7..000000000
--- a/libblkid/hfs.c
+++ /dev/null
@@ -1,321 +0,0 @@
-/*
- * Copyright (C) 2004-2008 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"
-#include "md5.h"
-
-/* HFS / HFS+ */
-struct hfs_finder_info {
- uint32_t boot_folder;
- uint32_t start_app;
- uint32_t open_folder;
- uint32_t os9_folder;
- uint32_t reserved;
- uint32_t osx_folder;
- uint8_t id[8];
-} __attribute__((packed));
-
-struct hfs_mdb {
- uint8_t signature[2];
- uint32_t cr_date;
- uint32_t ls_Mod;
- uint16_t atrb;
- uint16_t nm_fls;
- uint16_t vbm_st;
- uint16_t alloc_ptr;
- uint16_t nm_al_blks;
- uint32_t al_blk_size;
- uint32_t clp_size;
- uint16_t al_bl_st;
- uint32_t nxt_cnid;
- uint16_t free_bks;
- uint8_t label_len;
- uint8_t label[27];
- uint32_t vol_bkup;
- uint16_t vol_seq_num;
- uint32_t wr_cnt;
- uint32_t xt_clump_size;
- uint32_t ct_clump_size;
- uint16_t num_root_dirs;
- uint32_t file_count;
- uint32_t dir_count;
- struct hfs_finder_info finder_info;
- uint8_t embed_sig[2];
- uint16_t embed_startblock;
- uint16_t embed_blockcount;
-} __attribute__((packed));
-
-
-#define HFS_NODE_LEAF 0xff
-#define HFSPLUS_POR_CNID 1
-
-struct hfsplus_bnode_descriptor {
- uint32_t next;
- uint32_t prev;
- uint8_t type;
- uint8_t height;
- uint16_t num_recs;
- uint16_t reserved;
-} __attribute__((packed));
-
-struct hfsplus_bheader_record {
- uint16_t depth;
- uint32_t root;
- uint32_t leaf_count;
- uint32_t leaf_head;
- uint32_t leaf_tail;
- uint16_t node_size;
-} __attribute__((packed));
-
-struct hfsplus_catalog_key {
- uint16_t key_len;
- uint32_t parent_id;
- uint16_t unicode_len;
- uint8_t unicode[255 * 2];
-} __attribute__((packed));
-
-struct hfsplus_extent {
- uint32_t start_block;
- uint32_t block_count;
-} __attribute__((packed));
-
-#define HFSPLUS_EXTENT_COUNT 8
-struct hfsplus_fork {
- uint64_t total_size;
- uint32_t clump_size;
- uint32_t total_blocks;
- struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
-} __attribute__((packed));
-
-struct hfsplus_vol_header {
- uint8_t signature[2];
- uint16_t version;
- uint32_t attributes;
- uint32_t last_mount_vers;
- uint32_t reserved;
- uint32_t create_date;
- uint32_t modify_date;
- uint32_t backup_date;
- uint32_t checked_date;
- uint32_t file_count;
- uint32_t folder_count;
- uint32_t blocksize;
- uint32_t total_blocks;
- uint32_t free_blocks;
- uint32_t next_alloc;
- uint32_t rsrc_clump_sz;
- uint32_t data_clump_sz;
- uint32_t next_cnid;
- uint32_t write_count;
- uint64_t encodings_bmp;
- struct hfs_finder_info finder_info;
- struct hfsplus_fork alloc_file;
- struct hfsplus_fork ext_file;
- struct hfsplus_fork cat_file;
- struct hfsplus_fork attr_file;
- struct hfsplus_fork start_file;
-} __attribute__((packed));
-
-#define HFSPLUS_SECTOR_SIZE 512
-
-static int hfs_set_uuid(blkid_probe pr, unsigned char const *hfs_info, size_t len)
-{
- static unsigned char const hash_init[MD5LENGTH] = {
- 0xb3, 0xe2, 0x0f, 0x39, 0xf2, 0x92, 0x11, 0xd6,
- 0x97, 0xa4, 0x00, 0x30, 0x65, 0x43, 0xec, 0xac
- };
- unsigned char uuid[MD5LENGTH];
- struct MD5Context md5c;
-
- if (memcmp(hfs_info, "\0\0\0\0\0\0\0\0", len) == 0)
- return -1;
- MD5Init(&md5c);
- MD5Update(&md5c, hash_init, MD5LENGTH);
- MD5Update(&md5c, hfs_info, len);
- MD5Final(uuid, &md5c);
- uuid[6] = 0x30 | (uuid[6] & 0x0f);
- uuid[8] = 0x80 | (uuid[8] & 0x3f);
- return blkid_probe_set_uuid(pr, uuid);
-}
-
-static int probe_hfs(blkid_probe pr, const struct blkid_idmag *mag)
-{
- struct hfs_mdb *hfs;
-
- hfs = blkid_probe_get_sb(pr, mag, struct hfs_mdb);
- if (!hfs)
- return -1;
-
- if ((memcmp(hfs->embed_sig, "H+", 2) == 0) ||
- (memcmp(hfs->embed_sig, "HX", 2) == 0))
- return 1; /* Not hfs, but an embedded HFS+ */
-
- hfs_set_uuid(pr, hfs->finder_info.id, sizeof(hfs->finder_info.id));
-
- blkid_probe_set_label(pr, hfs->label, hfs->label_len);
- return 0;
-}
-
-static int probe_hfsplus(blkid_probe pr, const struct blkid_idmag *mag)
-{
- struct hfsplus_extent extents[HFSPLUS_EXTENT_COUNT];
- struct hfsplus_bnode_descriptor *descr;
- struct hfsplus_bheader_record *bnode;
- struct hfsplus_catalog_key *key;
- struct hfsplus_vol_header *hfsplus;
- struct hfs_mdb *sbd;
- unsigned int alloc_block_size;
- unsigned int alloc_first_block;
- unsigned int embed_first_block;
- unsigned int off = 0;
- unsigned int blocksize;
- unsigned int cat_block;
- unsigned int ext_block_start;
- unsigned int ext_block_count;
- unsigned int record_count;
- unsigned int leaf_node_head;
- unsigned int leaf_node_count;
- unsigned int leaf_node_size;
- unsigned int leaf_block;
- int ext;
- uint64_t leaf_off;
- unsigned char *buf;
-
- sbd = blkid_probe_get_sb(pr, mag, struct hfs_mdb);
- if (!sbd)
- return -1;
-
- /* Check for a HFS+ volume embedded in a HFS volume */
- if (memcmp(sbd->signature, "BD", 2) == 0) {
- if ((memcmp(sbd->embed_sig, "H+", 2) != 0) &&
- (memcmp(sbd->embed_sig, "HX", 2) != 0))
- /* This must be an HFS volume, so fail */
- return 1;
-
- alloc_block_size = be32_to_cpu(sbd->al_blk_size);
- alloc_first_block = be16_to_cpu(sbd->al_bl_st);
- embed_first_block = be16_to_cpu(sbd->embed_startblock);
- off = (alloc_first_block * 512) +
- (embed_first_block * alloc_block_size);
-
- buf = blkid_probe_get_buffer(pr,
- off + (mag->kboff * 1024),
- sizeof(struct hfsplus_vol_header));
- hfsplus = (struct hfsplus_vol_header *) buf;
-
- } else
- hfsplus = blkid_probe_get_sb(pr, mag,
- struct hfsplus_vol_header);
-
- if (!hfsplus)
- return -1;
-
- if ((memcmp(hfsplus->signature, "H+", 2) != 0) &&
- (memcmp(hfsplus->signature, "HX", 2) != 0))
- return 1;
-
- hfs_set_uuid(pr, hfsplus->finder_info.id, sizeof(hfsplus->finder_info.id));
-
- blocksize = be32_to_cpu(hfsplus->blocksize);
- if (blocksize < HFSPLUS_SECTOR_SIZE)
- return -1;
-
- memcpy(extents, hfsplus->cat_file.extents, sizeof(extents));
- cat_block = be32_to_cpu(extents[0].start_block);
-
- buf = blkid_probe_get_buffer(pr,
- off + ((blkid_loff_t) cat_block * blocksize), 0x2000);
- if (!buf)
- return 0;
-
- bnode = (struct hfsplus_bheader_record *)
- &buf[sizeof(struct hfsplus_bnode_descriptor)];
-
- leaf_node_head = be32_to_cpu(bnode->leaf_head);
- leaf_node_size = be16_to_cpu(bnode->node_size);
- leaf_node_count = be32_to_cpu(bnode->leaf_count);
- if (leaf_node_count == 0)
- return 0;
-
- leaf_block = (leaf_node_head * leaf_node_size) / blocksize;
-
- /* get physical location */
- for (ext = 0; ext < HFSPLUS_EXTENT_COUNT; ext++) {
- ext_block_start = be32_to_cpu(extents[ext].start_block);
- ext_block_count = be32_to_cpu(extents[ext].block_count);
- if (ext_block_count == 0)
- return 0;
-
- /* this is our extent */
- if (leaf_block < ext_block_count)
- break;
-
- leaf_block -= ext_block_count;
- }
- if (ext == HFSPLUS_EXTENT_COUNT)
- return 0;
-
- leaf_off = (ext_block_start + leaf_block) * blocksize;
-
- buf = blkid_probe_get_buffer(pr,
- (blkid_loff_t) off + leaf_off,
- leaf_node_size);
- if (!buf)
- return 0;
-
- descr = (struct hfsplus_bnode_descriptor *) buf;
- record_count = be16_to_cpu(descr->num_recs);
- if (record_count == 0)
- return 0;
-
- if (descr->type != HFS_NODE_LEAF)
- return 0;
-
- key = (struct hfsplus_catalog_key *)
- &buf[sizeof(struct hfsplus_bnode_descriptor)];
-
- if (be32_to_cpu(key->parent_id) != HFSPLUS_POR_CNID)
- return 0;
-
- blkid_probe_set_utf8label(pr, key->unicode,
- be16_to_cpu(key->unicode_len) * 2,
- BLKID_ENC_UTF16BE);
- return 0;
-}
-
-const struct blkid_idinfo hfs_idinfo =
-{
- .name = "hfs",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_hfs,
- .flags = BLKID_IDINFO_TOLERANT,
- .magics =
- {
- { .magic = "BD", .len = 2, .kboff = 1 },
- { NULL }
- }
-};
-
-const struct blkid_idinfo hfsplus_idinfo =
-{
- .name = "hfsplus",
- .usage = BLKID_USAGE_FILESYSTEM,
- .probefunc = probe_hfsplus,
- .magics =
- {
- { .magic = "BD", .len = 2, .kboff = 1 },
- { .magic = "H+", .len = 2, .kboff = 1 },
- { .magic = "HX", .len = 2, .kboff = 1 },
- { NULL }
- }
-};