4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * fsw_hfs.c - HFS file system driver code, see
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * http://developer.apple.com/technotes/tn/tn1150.html
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Current limitations:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * - Doesn't support permissions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * - Complete Unicode case-insensitiveness disabled (large tables)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * - No links
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * - Only supports pure HFS+ (i.e. no HFS, or HFS+ embedded to HFS)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (C) 2010 Oracle Corporation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * available from http://www.virtualbox.org. This file is free software;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * you can redistribute it and/or modify it under the terms of the GNU
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * General Public License (GPL) as published by the Free Software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * The contents of this file may alternatively be used under the terms
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * of the Common Development and Distribution License Version 1.0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * VirtualBox OSE distribution, in which case the provisions of the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * CDDL are applicable instead of those of the GPL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * You may elect to license modified versions of this file under the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * terms and conditions of either the GPL or the CDDL or both.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define BP(msg) do { printf("ERROR: %s", msg); asm("int3"); } while (0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// functions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i=0; i<len; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fprintf(stderr, "%c", swap ? be16_to_cpu(p[i]) : p[i]);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_volume_mount(struct fsw_hfs_volume *vol);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_hfs_volume_free(struct fsw_hfs_volume *vol);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_volume_stat(struct fsw_hfs_volume *vol, struct fsw_volume_stat *sb);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dnode_fill(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_hfs_dnode_free(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dnode_stat(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_get_extent(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dir_lookup(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_string *lookup_name, struct fsw_hfs_dnode **child_dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dir_read(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_shandle *shand, struct fsw_hfs_dnode **child_dno);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_read_dirrec(struct fsw_shandle *shand, struct hfs_dirrec_buffer *dirrec_buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_readlink(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync// Dispatch Table
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstruct fsw_fstype_table FSW_FSTYPE_TABLE_NAME(hfs) = {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sizeof(struct fsw_hfs_volume),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sizeof(struct fsw_hfs_dnode),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_hfs_get_extent(dno->g.vol, dno, &extent);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_block_get(dno->g.vol, phys_bno, 0, (void **)&buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Read data from HFS file. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 block_size_bits = dno->g.vol->block_size_shift;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while (len > 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync log_bno = (fsw_u32)RShiftU64(pos, block_size_bits);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_hfs_read_block(dno, log_bno, off, next_len, buf);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i=0; i<32; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((size >> i) == 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return i - 1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Mount an HFS+ volume. Reads the superblock and constructs the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * root directory dnode.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_volume_mount(struct fsw_hfs_volume *vol)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_set_blocksize(vol, HFS_BLOCKSIZE, HFS_BLOCKSIZE);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if ((signature == kHFSPlusSigWord) || (signature == kHFSXSigWord))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSMasterDirectoryBlock* mdb = (HFSMasterDirectoryBlock*)buffer;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (be16_to_cpu(mdb->drEmbedSigWord) == kHFSPlusSigWord)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->emb_block_off = be32_to_cpu(mdb->drEmbedExtent.startBlock);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* retry */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_memdup((void **)&vol->primary_voldesc, voldesc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->block_size_shift = fsw_hfs_compute_shift(block_size);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* get volume name */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_strdup_coerce(&vol->g.label, vol->g.host_string_type, &s);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Setup catalog dnode */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_dnode_create_root(vol, kHFSCatalogFileID, &vol->catalog_tree.file);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync be64_to_cpu(vol->primary_voldesc->catalogFile.logicalSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Setup extents overflow file */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_dnode_create_root(vol, kHFSExtentsFileID, &vol->extents_tree.file);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync be64_to_cpu(vol->primary_voldesc->extentsFile.logicalSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Setup the root dnode */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_dnode_create_root(vol, kHFSRootFolderID, &vol->g.root);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Read catalog file, we know that first record is in the first node, right after
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the node descriptor.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (r <= 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->catalog_tree.root_node = be32_to_cpu (tree_header.rootNode);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->catalog_tree.node_size = be16_to_cpu (tree_header.nodeSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Read extents overflow file */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (r <= 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->extents_tree.root_node = be32_to_cpu (tree_header.rootNode);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vol->extents_tree.node_size = be16_to_cpu (tree_header.nodeSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync } while (0);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Free the volume data structure. Called by the core after an unmount or after
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * an unsuccessful mount to release the memory used by the file system type specific
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * part of the volume structure.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_hfs_volume_free(struct fsw_hfs_volume *vol)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get in-depth information on a volume.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_volume_stat(struct fsw_hfs_volume *vol, struct fsw_volume_stat *sb)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb->total_bytes = be32_to_cpu(vol->primary_voldesc->totalBlocks) << vol->block_size_shift;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb->free_bytes = be32_to_cpu(vol->primary_voldesc->freeBlocks) << vol->block_size_shift;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get full information on a dnode from disk. This function is called by the core
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * whenever it needs to access fields in the dnode structure that may not
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * be filled immediately upon creation of the dnode.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dnode_fill(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Free the dnode data structure. Called by the core when deallocating a dnode
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * structure to release the memory used by the file system type specific part
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * of the dnode structure.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic void fsw_hfs_dnode_free(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Mac time is 1904 year based */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get in-depth information on a dnode. The core makes sure that fsw_hfs_dnode_fill
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * has been called on the dnode before this function is called. Note that some
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * data is not directly stored into the structure, but passed to a host-specific
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * callback that converts it to the host-specific format.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dnode_stat(struct fsw_hfs_volume *vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb->store_time_posix(sb, FSW_DNODE_STAT_CTIME, mac_to_posix(dno->ctime));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync sb->store_time_posix(sb, FSW_DNODE_STAT_MTIME, mac_to_posix(dno->mtime));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i = 0; i < 8; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 start = be32_to_cpu ((*exts)[i].startBlock);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u32 count = be32_to_cpu ((*exts)[i].blockCount);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Find record offset, numbering starts from the end */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_hfs_btree_recoffset (struct fsw_hfs_btree * btree,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync recptr = (fsw_u16 *) (cnode+btree->node_size - index * 2 - 2);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Pointer to the key inside node */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync offset = fsw_hfs_btree_recoffset (btree, node, index);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int (*compare_keys) (BTreeKey* key1, BTreeKey* key2),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Read a node. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (be16_to_cpu(*(fsw_u16*)(buffer + btree->node_size - 2)) != sizeof(BTNodeDescriptor))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //fprintf(stderr, "rec=%d cmp=%d kind=%d \n", rec, cmp, node->kind);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Leaf node. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Found! */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (node->kind == kBTLeafNode && cmp < 0 && node->fLink)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Perform binary search */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Found! */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsynctypedef struct
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsynctypedef struct
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct fsw_shandle * shandle; /* this one track iterator's state */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_hfs_btree_visit_node(BTreeKey *record, void* param)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync visitor_parameter_t* vp = (visitor_parameter_t*)param;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_u8* base = (fsw_u8*)record->rawData + be16_to_cpu(record->length16) + 2;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync struct HFSPlusCatalogKey* cat_key = (HFSPlusCatalogKey*)record;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* not smth we care about */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogFolder* folder_info = (HFSPlusCatalogFolder*)base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.id = be32_to_cpu(folder_info->folderID);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.size = be32_to_cpu(folder_info->valence);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.used = be32_to_cpu(folder_info->valence);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.ctime = be32_to_cpu(folder_info->createDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.mtime = be32_to_cpu(folder_info->contentModDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogFile* file_info = (HFSPlusCatalogFile*)base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.size = be64_to_cpu(file_info->dataFork.logicalSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.used = LShiftU64(be32_to_cpu(file_info->dataFork.totalBlocks),
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.ctime = be32_to_cpu(file_info->createDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync vp->file_info.mtime = be32_to_cpu(file_info->contentModDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memcpy(&vp->file_info.extents, &file_info->dataFork.extents,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memdup(&file_name->data, &cat_key->nodeName.unicode[0], 2*name_len);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i=0; i<name_len; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_hfs_btree_iterate_node (struct fsw_hfs_btree * btree,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* We modify node, so make a copy */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Iterate over all records in this node. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int rv = callback(fsw_hfs_btree_rec (btree, node, i), param);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* if callback returned 0 - continue */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i=0; i<len; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* First key is read from the FS data, second is in-memory in CPU endianess */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync result = be32_to_cpu(ekey1->fileID) - ekey2->fileID;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync result = be32_to_cpu(ekey1->startBlock) - ekey2->startBlock;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogKey *ckey1 = (HFSPlusCatalogKey*)key1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogKey *ckey2 = (HFSPlusCatalogKey*)key2;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* get next valid character from ckey1 */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* get next valid character from ckey2 */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (lc = 0; lc == 0 && bpos < ckey2->nodeName.length; bpos++) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfsw_hfs_cmpi_catkey (BTreeKey *key1, BTreeKey *key2)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogKey *ckey1 = (HFSPlusCatalogKey*)key1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogKey *ckey2 = (HFSPlusCatalogKey*)key2;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* get next valid character from ckey1 */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* get next valid character from ckey2 */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (lc = 0; lc == 0 && bpos < ckey2->nodeName.length; bpos++) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Retrieve file data mapping information. This function is called by the core when
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * fsw_shandle_read needs to know where on the disk the required piece of the file's
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * data can be found. The core makes sure that fsw_hfs_dnode_fill has been called
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * on the dnode before. Our task here is to get the physical disk block number for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the requested logical block number.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_get_extent(struct fsw_hfs_volume * vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* we only care about data forks atm, do we? */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync extent->phys_start = phys_bno + vol->emb_block_off;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Find appropriate overflow record */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync //L"AppleIntelCPUPowerManagement.kext",
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync//#define HFS_FILE_INJECTION
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic struct
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync L"ApplePS2Controller.kext"
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_dnode_create(dno, file_info->id, file_info->type,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Fill-in extents info */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memcpy(baby->extents, &file_info->extents, sizeof file_info->extents);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Lookup a directory's child dnode by name. This function is called on a directory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * to retrieve the directory entry with the given name. A dnode is constructed for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * this entry and returned. The core makes sure that fsw_hfs_dnode_fill has been called
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and the dnode is actually a directory.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dir_lookup(struct fsw_hfs_volume * vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync catkey.nodeName.length = (fsw_u16)lookup_name->len;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* no need to allocate anything */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memcpy(catkey.nodeName.unicode, lookup_name->data, lookup_name->size);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_strdup_coerce(&rec_name, FSW_STRING_TYPE_UTF16, lookup_name);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* nothing allocated so far */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memcpy(catkey.nodeName.unicode, rec_name.data, rec_name.size);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Dirty hack: blacklisting of certain files on FS driver level */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (i = 0; g_blacklist[i]; i++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (fsw_memeq(g_blacklist[i], catkey.nodeName.unicode, catkey.nodeName.length*2))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync file_key = (HFSPlusCatalogKey *)fsw_hfs_btree_rec (&vol->catalog_tree, node, ptr);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* for plain HFS "-(keySize & 1)" would be needed */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync base = (fsw_u8*)file_key + be16_to_cpu(file_key->keyLength) + 2;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /** @todo: read additional info */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogFolder* info = (HFSPlusCatalogFolder*)base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* @todo: return number of elements, maybe use smth else */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync file_info.mtime = be32_to_cpu(info->contentModDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync HFSPlusCatalogFile* info = (HFSPlusCatalogFile*)base;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync file_info.size = be64_to_cpu(info->dataFork.logicalSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync file_info.used = LShiftU64(be32_to_cpu(info->dataFork.totalBlocks), vol->block_size_shift);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync file_info.mtime = be32_to_cpu(info->contentModDate);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync fsw_memcpy(&file_info.extents, &info->dataFork.extents,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = create_hfs_dnode(dno, &file_info, child_dno_out);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get the next directory entry when reading a directory. This function is called during
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * directory iteration to retrieve the next directory entry. A dnode is constructed for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * the entry and returned. The core makes sure that fsw_hfs_dnode_fill has been called
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * and the dnode is actually a directory. The shandle provided by the caller is used to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * record the position in the directory between calls.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_dir_read(struct fsw_hfs_volume *vol,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync /* Iterator updates shand state */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = fsw_hfs_btree_iterate_node (&vol->catalog_tree,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync status = create_hfs_dnode(dno, ¶m.file_info, child_dno_out);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Get the target path of a symbolic link. This function is called when a symbolic
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * link needs to be resolved. The core makes sure that the fsw_hfs_dnode_fill has been
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * called on the dnode and that it really is a symlink.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic fsw_status_t fsw_hfs_readlink(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,