[48674] | 1 | /* $Id: fsw_hfs.c 98103 2023-01-17 14:15:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * fsw_hfs.c - HFS file system driver code, see
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| 4 | *
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[59611] | 5 | * https://developer.apple.com/legacy/library/technotes/tn/tn1150.html
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| 6 | * (formerly http://developer.apple.com/technotes/tn/tn1150.html)
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[48674] | 7 | *
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| 8 | * Current limitations:
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| 9 | * - Doesn't support permissions
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| 10 | * - Complete Unicode case-insensitiveness disabled (large tables)
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| 11 | * - No links
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| 12 | * - Only supports pure HFS+ (i.e. no HFS, or HFS+ embedded to HFS)
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| 13 | */
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| 14 |
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| 15 | /*
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[98103] | 16 | * Copyright (C) 2010-2023 Oracle and/or its affiliates.
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[48674] | 17 | *
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[96407] | 18 | * This file is part of VirtualBox base platform packages, as
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| 19 | * available from https://www.virtualbox.org.
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[48674] | 20 | *
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[96407] | 21 | * This program is free software; you can redistribute it and/or
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| 22 | * modify it under the terms of the GNU General Public License
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| 23 | * as published by the Free Software Foundation, in version 3 of the
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| 24 | * License.
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| 25 | *
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| 26 | * This program is distributed in the hope that it will be useful, but
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| 27 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 29 | * General Public License for more details.
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| 30 | *
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| 31 | * You should have received a copy of the GNU General Public License
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| 32 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 33 | *
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[48674] | 34 | * The contents of this file may alternatively be used under the terms
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| 35 | * of the Common Development and Distribution License Version 1.0
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[96407] | 36 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 37 | * in the VirtualBox distribution, in which case the provisions of the
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[48674] | 38 | * CDDL are applicable instead of those of the GPL.
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| 39 | *
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| 40 | * You may elect to license modified versions of this file under the
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| 41 | * terms and conditions of either the GPL or the CDDL or both.
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[96407] | 42 | *
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| 43 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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[48674] | 44 | */
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| 45 |
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| 46 | #include "fsw_hfs.h"
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| 47 |
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| 48 | #ifdef HOST_POSIX
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[69613] | 49 | #include <assert.h>
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[48674] | 50 | #define DPRINT(x) printf(x)
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| 51 | #define DPRINT2(x,y) printf(x,y)
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[69613] | 52 | #define BP(msg) do { printf("ERROR: %s", msg); assert(0); } while (0)
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[58835] | 53 | #elif defined DEBUG_LEVEL
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[48674] | 54 | #define CONCAT(x,y) x##y
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| 55 | #define DPRINT(x) Print(CONCAT(L,x))
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| 56 | #define DPRINT2(x,y) Print(CONCAT(L,x), y)
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| 57 | #define BP(msg) DPRINT(msg)
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[58835] | 58 | #else
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[59146] | 59 | #include <Library/PrintLib.h>
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[58835] | 60 | #define DPRINT(x) do { } while (0)
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| 61 | #define DPRINT2(x,y) do { } while (0)
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| 62 | #define BP(msg) do { } while (0)
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[48674] | 63 | #endif
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| 64 |
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| 65 | // functions
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| 66 | #if 0
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| 67 | void dump_str(fsw_u16* p, fsw_u32 len, int swap)
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| 68 | {
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| 69 | int i;
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| 70 |
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| 71 | for (i=0; i<len; i++)
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| 72 | {
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| 73 | fprintf(stderr, "%c", swap ? be16_to_cpu(p[i]) : p[i]);
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| 74 | }
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| 75 | fprintf(stderr, "\n");
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| 76 | }
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| 77 | #endif
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| 78 |
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| 79 | static fsw_status_t fsw_hfs_volume_mount(struct fsw_hfs_volume *vol);
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| 80 | static void fsw_hfs_volume_free(struct fsw_hfs_volume *vol);
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| 81 | static fsw_status_t fsw_hfs_volume_stat(struct fsw_hfs_volume *vol, struct fsw_volume_stat *sb);
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| 82 |
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| 83 | static fsw_status_t fsw_hfs_dnode_fill(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno);
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| 84 | static void fsw_hfs_dnode_free(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno);
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| 85 | static fsw_status_t fsw_hfs_dnode_stat(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
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| 86 | struct fsw_dnode_stat *sb);
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| 87 | static fsw_status_t fsw_hfs_get_extent(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
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| 88 | struct fsw_extent *extent);
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| 89 |
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| 90 | static fsw_status_t fsw_hfs_dir_lookup(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
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| 91 | struct fsw_string *lookup_name, struct fsw_hfs_dnode **child_dno);
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| 92 | static fsw_status_t fsw_hfs_dir_read(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
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| 93 | struct fsw_shandle *shand, struct fsw_hfs_dnode **child_dno);
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| 94 | #if 0
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| 95 | static fsw_status_t fsw_hfs_read_dirrec(struct fsw_shandle *shand, struct hfs_dirrec_buffer *dirrec_buffer);
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| 96 | #endif
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| 97 |
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| 98 | static fsw_status_t fsw_hfs_readlink(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
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| 99 | struct fsw_string *link);
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| 100 |
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| 101 | //
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| 102 | // Dispatch Table
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| 103 | //
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| 104 |
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| 105 | struct fsw_fstype_table FSW_FSTYPE_TABLE_NAME(hfs) = {
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| 106 | { FSW_STRING_TYPE_ISO88591, 4, 4, "hfs" },
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| 107 | sizeof(struct fsw_hfs_volume),
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| 108 | sizeof(struct fsw_hfs_dnode),
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| 109 |
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| 110 | fsw_hfs_volume_mount,
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| 111 | fsw_hfs_volume_free,
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| 112 | fsw_hfs_volume_stat,
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| 113 | fsw_hfs_dnode_fill,
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| 114 | fsw_hfs_dnode_free,
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| 115 | fsw_hfs_dnode_stat,
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| 116 | fsw_hfs_get_extent,
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| 117 | fsw_hfs_dir_lookup,
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| 118 | fsw_hfs_dir_read,
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| 119 | fsw_hfs_readlink,
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| 120 | };
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| 121 |
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| 122 | static fsw_s32
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| 123 | fsw_hfs_read_block (struct fsw_hfs_dnode * dno,
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| 124 | fsw_u32 log_bno,
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| 125 | fsw_u32 off,
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| 126 | fsw_s32 len,
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| 127 | fsw_u8 * buf)
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| 128 | {
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| 129 | fsw_status_t status;
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| 130 | struct fsw_extent extent;
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| 131 | fsw_u32 phys_bno;
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| 132 | fsw_u8* buffer;
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| 133 |
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| 134 | extent.log_start = log_bno;
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| 135 | status = fsw_hfs_get_extent(dno->g.vol, dno, &extent);
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| 136 | if (status)
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| 137 | return status;
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| 138 |
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| 139 | phys_bno = extent.phys_start;
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| 140 | status = fsw_block_get(dno->g.vol, phys_bno, 0, (void **)&buffer);
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| 141 | if (status)
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| 142 | return status;
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| 143 |
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| 144 | fsw_memcpy(buf, buffer + off, len);
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| 145 |
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| 146 | fsw_block_release(dno->g.vol, phys_bno, buffer);
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| 147 |
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| 148 | return FSW_SUCCESS;
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| 149 |
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| 150 | }
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| 151 |
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| 152 | /* Read data from HFS file. */
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| 153 | static fsw_s32
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| 154 | fsw_hfs_read_file (struct fsw_hfs_dnode * dno,
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| 155 | fsw_u64 pos,
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| 156 | fsw_s32 len,
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| 157 | fsw_u8 * buf)
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| 158 | {
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| 159 |
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| 160 | fsw_status_t status;
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| 161 | fsw_u32 log_bno;
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| 162 | fsw_u32 block_size_bits = dno->g.vol->block_size_shift;
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| 163 | fsw_u32 block_size = (1 << block_size_bits);
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| 164 | fsw_u32 block_size_mask = block_size - 1;
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| 165 | fsw_s32 read = 0;
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| 166 |
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| 167 | while (len > 0)
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| 168 | {
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| 169 | fsw_u32 off = (fsw_u32)(pos & block_size_mask);
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| 170 | fsw_s32 next_len = len;
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| 171 |
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| 172 | log_bno = (fsw_u32)RShiftU64(pos, block_size_bits);
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| 173 |
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| 174 | if ( next_len >= 0
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| 175 | && (fsw_u32)next_len > block_size)
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| 176 | next_len = block_size;
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| 177 | status = fsw_hfs_read_block(dno, log_bno, off, next_len, buf);
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| 178 | if (status)
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| 179 | return -1;
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| 180 | buf += next_len;
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| 181 | pos += next_len;
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| 182 | len -= next_len;
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| 183 | read += next_len;
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| 184 | }
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| 185 |
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| 186 | return read;
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| 187 | }
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| 188 |
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| 189 |
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| 190 | static fsw_s32
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| 191 | fsw_hfs_compute_shift(fsw_u32 size)
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| 192 | {
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| 193 | fsw_s32 i;
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| 194 |
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| 195 | for (i=0; i<32; i++)
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| 196 | {
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| 197 | if ((size >> i) == 0)
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| 198 | return i - 1;
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| 199 | }
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| 200 |
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| 201 | BP("BUG\n");
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| 202 | return 0;
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| 203 | }
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| 204 |
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| 205 | /**
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| 206 | * Mount an HFS+ volume. Reads the superblock and constructs the
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| 207 | * root directory dnode.
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| 208 | */
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| 209 |
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| 210 | static fsw_status_t fsw_hfs_volume_mount(struct fsw_hfs_volume *vol)
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| 211 | {
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| 212 | fsw_status_t status, rv;
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| 213 | void *buffer = NULL;
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| 214 | HFSPlusVolumeHeader *voldesc;
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| 215 | fsw_u32 blockno;
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| 216 | struct fsw_string s;
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| 217 |
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| 218 | rv = FSW_UNSUPPORTED;
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| 219 |
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| 220 | vol->primary_voldesc = NULL;
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| 221 | fsw_set_blocksize(vol, HFS_BLOCKSIZE, HFS_BLOCKSIZE);
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| 222 | blockno = HFS_SUPERBLOCK_BLOCKNO;
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| 223 |
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| 224 | #define CHECK(s) \
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| 225 | if (status) { \
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| 226 | rv = status; \
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| 227 | break; \
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| 228 | }
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| 229 |
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| 230 | vol->emb_block_off = 0;
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| 231 | vol->hfs_kind = 0;
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| 232 | do {
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| 233 | fsw_u16 signature;
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| 234 | BTHeaderRec tree_header;
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| 235 | fsw_s32 r;
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| 236 | fsw_u32 block_size;
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| 237 |
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| 238 | status = fsw_block_get(vol, blockno, 0, &buffer);
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| 239 | CHECK(status);
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| 240 | voldesc = (HFSPlusVolumeHeader *)buffer;
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| 241 | signature = be16_to_cpu(voldesc->signature);
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| 242 |
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| 243 | if ((signature == kHFSPlusSigWord) || (signature == kHFSXSigWord))
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| 244 | {
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| 245 | if (vol->hfs_kind == 0)
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| 246 | {
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| 247 | DPRINT("found HFS+\n");
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| 248 | vol->hfs_kind = FSW_HFS_PLUS;
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| 249 | }
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| 250 | }
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| 251 | else if (signature == kHFSSigWord)
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| 252 | {
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| 253 | HFSMasterDirectoryBlock* mdb = (HFSMasterDirectoryBlock*)buffer;
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| 254 |
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| 255 | if (be16_to_cpu(mdb->drEmbedSigWord) == kHFSPlusSigWord)
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| 256 | {
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| 257 | DPRINT("found HFS+ inside HFS, untested\n");
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| 258 | vol->hfs_kind = FSW_HFS_PLUS_EMB;
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| 259 | vol->emb_block_off = be32_to_cpu(mdb->drEmbedExtent.startBlock);
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| 260 | blockno += vol->emb_block_off;
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| 261 | /* retry */
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| 262 | continue;
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| 263 | }
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| 264 | else
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| 265 | {
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| 266 | DPRINT("found plain HFS, unsupported\n");
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| 267 | vol->hfs_kind = FSW_HFS_PLAIN;
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| 268 | }
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| 269 | rv = FSW_UNSUPPORTED;
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| 270 | break;
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| 271 | }
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| 272 | else
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| 273 | {
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| 274 | rv = FSW_UNSUPPORTED;
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| 275 | break;
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| 276 | }
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| 277 |
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| 278 | status = fsw_memdup((void **)&vol->primary_voldesc, voldesc,
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| 279 | sizeof(*voldesc));
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| 280 | CHECK(status);
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| 281 |
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| 282 |
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| 283 | block_size = be32_to_cpu(voldesc->blockSize);
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| 284 | vol->block_size_shift = fsw_hfs_compute_shift(block_size);
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| 285 |
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| 286 | fsw_block_release(vol, blockno, buffer);
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| 287 | buffer = NULL;
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| 288 | voldesc = NULL;
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| 289 | fsw_set_blocksize(vol, block_size, block_size);
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| 290 |
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| 291 | /* get volume name */
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| 292 | s.type = FSW_STRING_TYPE_ISO88591;
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| 293 | s.size = s.len = kHFSMaxVolumeNameChars;
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[82521] | 294 | s.data = "HFS+ volume\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; /* Otherwise buffer overflow reading beyond the end of the buffer. */
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[48674] | 295 | status = fsw_strdup_coerce(&vol->g.label, vol->g.host_string_type, &s);
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| 296 | CHECK(status);
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| 297 |
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| 298 | /* Setup catalog dnode */
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| 299 | status = fsw_dnode_create_root(vol, kHFSCatalogFileID, &vol->catalog_tree.file);
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| 300 | CHECK(status);
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| 301 | fsw_memcpy (vol->catalog_tree.file->extents,
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| 302 | vol->primary_voldesc->catalogFile.extents,
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| 303 | sizeof vol->catalog_tree.file->extents);
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| 304 | vol->catalog_tree.file->g.size =
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| 305 | be64_to_cpu(vol->primary_voldesc->catalogFile.logicalSize);
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| 306 |
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| 307 | /* Setup extents overflow file */
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| 308 | status = fsw_dnode_create_root(vol, kHFSExtentsFileID, &vol->extents_tree.file);
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| 309 | fsw_memcpy (vol->extents_tree.file->extents,
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| 310 | vol->primary_voldesc->extentsFile.extents,
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| 311 | sizeof vol->extents_tree.file->extents);
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| 312 | vol->extents_tree.file->g.size =
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| 313 | be64_to_cpu(vol->primary_voldesc->extentsFile.logicalSize);
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| 314 |
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| 315 | /* Setup the root dnode */
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| 316 | status = fsw_dnode_create_root(vol, kHFSRootFolderID, &vol->g.root);
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| 317 | CHECK(status);
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| 318 |
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| 319 | /*
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| 320 | * Read catalog file, we know that first record is in the first node, right after
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| 321 | * the node descriptor.
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| 322 | */
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| 323 | r = fsw_hfs_read_file(vol->catalog_tree.file,
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| 324 | sizeof (BTNodeDescriptor),
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| 325 | sizeof (BTHeaderRec), (fsw_u8 *) &tree_header);
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| 326 | if (r <= 0)
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| 327 | {
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| 328 | status = FSW_VOLUME_CORRUPTED;
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| 329 | break;
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| 330 | }
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| 331 | vol->case_sensitive =
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| 332 | (signature == kHFSXSigWord) &&
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| 333 | (tree_header.keyCompareType == kHFSBinaryCompare);
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| 334 | vol->catalog_tree.root_node = be32_to_cpu (tree_header.rootNode);
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| 335 | vol->catalog_tree.node_size = be16_to_cpu (tree_header.nodeSize);
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| 336 |
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| 337 | /* Read extents overflow file */
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| 338 | r = fsw_hfs_read_file(vol->extents_tree.file,
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| 339 | sizeof (BTNodeDescriptor),
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| 340 | sizeof (BTHeaderRec), (fsw_u8 *) &tree_header);
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| 341 | if (r <= 0)
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| 342 | {
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| 343 | status = FSW_VOLUME_CORRUPTED;
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| 344 | break;
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| 345 | }
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| 346 |
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| 347 | vol->extents_tree.root_node = be32_to_cpu (tree_header.rootNode);
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| 348 | vol->extents_tree.node_size = be16_to_cpu (tree_header.nodeSize);
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| 349 |
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| 350 | rv = FSW_SUCCESS;
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| 351 | } while (0);
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| 352 |
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| 353 | #undef CHECK
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| 354 |
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| 355 |
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| 356 | if (buffer != NULL)
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| 357 | fsw_block_release(vol, blockno, buffer);
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| 358 |
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| 359 | return rv;
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| 360 | }
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| 361 |
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| 362 | /**
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| 363 | * Free the volume data structure. Called by the core after an unmount or after
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| 364 | * an unsuccessful mount to release the memory used by the file system type specific
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| 365 | * part of the volume structure.
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| 366 | */
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| 367 |
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| 368 | static void fsw_hfs_volume_free(struct fsw_hfs_volume *vol)
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| 369 | {
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| 370 | if (vol->primary_voldesc)
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| 371 | {
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| 372 | fsw_free(vol->primary_voldesc);
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| 373 | vol->primary_voldesc = NULL;
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| 374 | }
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| 375 | }
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| 376 |
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| 377 | /**
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| 378 | * Get in-depth information on a volume.
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| 379 | */
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| 380 |
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| 381 | static fsw_status_t fsw_hfs_volume_stat(struct fsw_hfs_volume *vol, struct fsw_volume_stat *sb)
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| 382 | {
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| 383 | sb->total_bytes = be32_to_cpu(vol->primary_voldesc->totalBlocks) << vol->block_size_shift;
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| 384 | sb->free_bytes = be32_to_cpu(vol->primary_voldesc->freeBlocks) << vol->block_size_shift;
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| 385 | return FSW_SUCCESS;
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| 386 | }
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| 387 |
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| 388 | /**
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| 389 | * Get full information on a dnode from disk. This function is called by the core
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| 390 | * whenever it needs to access fields in the dnode structure that may not
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| 391 | * be filled immediately upon creation of the dnode.
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| 392 | */
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| 393 |
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| 394 | static fsw_status_t fsw_hfs_dnode_fill(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno)
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| 395 | {
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| 396 | return FSW_SUCCESS;
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| 397 | }
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| 398 |
|
---|
| 399 | /**
|
---|
| 400 | * Free the dnode data structure. Called by the core when deallocating a dnode
|
---|
| 401 | * structure to release the memory used by the file system type specific part
|
---|
| 402 | * of the dnode structure.
|
---|
| 403 | */
|
---|
| 404 |
|
---|
| 405 | static void fsw_hfs_dnode_free(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno)
|
---|
| 406 | {
|
---|
| 407 | }
|
---|
| 408 |
|
---|
| 409 | static fsw_u32 mac_to_posix(fsw_u32 mac_time)
|
---|
| 410 | {
|
---|
| 411 | /* Mac time is 1904 year based */
|
---|
| 412 | return mac_time ? mac_time - 2082844800 : 0;
|
---|
| 413 | }
|
---|
| 414 |
|
---|
| 415 | /**
|
---|
| 416 | * Get in-depth information on a dnode. The core makes sure that fsw_hfs_dnode_fill
|
---|
| 417 | * has been called on the dnode before this function is called. Note that some
|
---|
| 418 | * data is not directly stored into the structure, but passed to a host-specific
|
---|
| 419 | * callback that converts it to the host-specific format.
|
---|
| 420 | */
|
---|
| 421 |
|
---|
| 422 | static fsw_status_t fsw_hfs_dnode_stat(struct fsw_hfs_volume *vol,
|
---|
| 423 | struct fsw_hfs_dnode *dno,
|
---|
| 424 | struct fsw_dnode_stat *sb)
|
---|
| 425 | {
|
---|
| 426 | sb->used_bytes = dno->used_bytes;
|
---|
| 427 | sb->store_time_posix(sb, FSW_DNODE_STAT_CTIME, mac_to_posix(dno->ctime));
|
---|
| 428 | sb->store_time_posix(sb, FSW_DNODE_STAT_MTIME, mac_to_posix(dno->mtime));
|
---|
| 429 | sb->store_time_posix(sb, FSW_DNODE_STAT_ATIME, 0);
|
---|
| 430 | sb->store_attr_posix(sb, 0700);
|
---|
| 431 |
|
---|
| 432 | return FSW_SUCCESS;
|
---|
| 433 | }
|
---|
| 434 |
|
---|
| 435 | static int
|
---|
| 436 | fsw_hfs_find_block(HFSPlusExtentRecord * exts,
|
---|
| 437 | fsw_u32 * lbno,
|
---|
| 438 | fsw_u32 * pbno)
|
---|
| 439 | {
|
---|
| 440 | int i;
|
---|
| 441 | fsw_u32 cur_lbno = *lbno;
|
---|
| 442 |
|
---|
| 443 | for (i = 0; i < 8; i++)
|
---|
| 444 | {
|
---|
| 445 | fsw_u32 start = be32_to_cpu ((*exts)[i].startBlock);
|
---|
| 446 | fsw_u32 count = be32_to_cpu ((*exts)[i].blockCount);
|
---|
| 447 |
|
---|
| 448 | if (cur_lbno < count)
|
---|
| 449 | {
|
---|
| 450 | *pbno = start + cur_lbno;
|
---|
| 451 | return 1;
|
---|
| 452 | }
|
---|
| 453 |
|
---|
| 454 | cur_lbno -= count;
|
---|
| 455 | }
|
---|
| 456 |
|
---|
| 457 | *lbno = cur_lbno;
|
---|
| 458 |
|
---|
| 459 | return 0;
|
---|
| 460 | }
|
---|
| 461 |
|
---|
| 462 | /* Find record offset, numbering starts from the end */
|
---|
| 463 | static fsw_u32
|
---|
| 464 | fsw_hfs_btree_recoffset (struct fsw_hfs_btree * btree,
|
---|
| 465 | BTNodeDescriptor * node,
|
---|
| 466 | fsw_u32 index)
|
---|
| 467 | {
|
---|
| 468 | fsw_u8 *cnode = (fsw_u8 *) node;
|
---|
| 469 | fsw_u16 *recptr;
|
---|
| 470 | recptr = (fsw_u16 *) (cnode+btree->node_size - index * 2 - 2);
|
---|
| 471 | return be16_to_cpu(*recptr);
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 | /* Pointer to the key inside node */
|
---|
| 475 | static BTreeKey *
|
---|
| 476 | fsw_hfs_btree_rec (struct fsw_hfs_btree * btree,
|
---|
| 477 | BTNodeDescriptor * node,
|
---|
| 478 | fsw_u32 index)
|
---|
| 479 | {
|
---|
| 480 | fsw_u8 *cnode = (fsw_u8 *) node;
|
---|
| 481 | fsw_u32 offset;
|
---|
| 482 | offset = fsw_hfs_btree_recoffset (btree, node, index);
|
---|
| 483 | return (BTreeKey *) (cnode + offset);
|
---|
| 484 | }
|
---|
| 485 |
|
---|
| 486 |
|
---|
| 487 | static fsw_status_t
|
---|
| 488 | fsw_hfs_btree_search (struct fsw_hfs_btree * btree,
|
---|
| 489 | BTreeKey * key,
|
---|
| 490 | int (*compare_keys) (BTreeKey* key1, BTreeKey* key2),
|
---|
| 491 | BTNodeDescriptor ** result,
|
---|
| 492 | fsw_u32 * key_offset)
|
---|
| 493 | {
|
---|
| 494 | BTNodeDescriptor* node;
|
---|
| 495 | fsw_u32 currnode;
|
---|
| 496 | fsw_u32 rec;
|
---|
| 497 | fsw_status_t status;
|
---|
| 498 | fsw_u8* buffer = NULL;
|
---|
| 499 |
|
---|
| 500 | currnode = btree->root_node;
|
---|
| 501 | status = fsw_alloc(btree->node_size, &buffer);
|
---|
| 502 | if (status)
|
---|
| 503 | return status;
|
---|
| 504 | node = (BTNodeDescriptor*)buffer;
|
---|
| 505 |
|
---|
| 506 | while (1)
|
---|
| 507 | {
|
---|
| 508 | int cmp = 0;
|
---|
| 509 | int match;
|
---|
| 510 | fsw_u32 count;
|
---|
| 511 |
|
---|
| 512 | readnode:
|
---|
| 513 | match = 0;
|
---|
| 514 | /* Read a node. */
|
---|
| 515 | if (fsw_hfs_read_file (btree->file,
|
---|
| 516 | (fsw_u64)currnode * btree->node_size,
|
---|
| 517 | btree->node_size, buffer) <= 0)
|
---|
| 518 | {
|
---|
| 519 | status = FSW_VOLUME_CORRUPTED;
|
---|
| 520 | break;
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | if (be16_to_cpu(*(fsw_u16*)(buffer + btree->node_size - 2)) != sizeof(BTNodeDescriptor))
|
---|
| 524 | BP("corrupted node\n");
|
---|
| 525 |
|
---|
| 526 | count = be16_to_cpu (node->numRecords);
|
---|
| 527 |
|
---|
| 528 | #if 1
|
---|
| 529 | for (rec = 0; rec < count; rec++)
|
---|
| 530 | {
|
---|
| 531 | BTreeKey *currkey;
|
---|
| 532 |
|
---|
| 533 | currkey = fsw_hfs_btree_rec (btree, node, rec);
|
---|
| 534 | cmp = compare_keys (currkey, key);
|
---|
| 535 | //fprintf(stderr, "rec=%d cmp=%d kind=%d \n", rec, cmp, node->kind);
|
---|
| 536 |
|
---|
| 537 | /* Leaf node. */
|
---|
| 538 | if (node->kind == kBTLeafNode)
|
---|
| 539 | {
|
---|
| 540 | if (cmp == 0)
|
---|
| 541 | {
|
---|
| 542 | /* Found! */
|
---|
| 543 | *result = node;
|
---|
| 544 | *key_offset = rec;
|
---|
| 545 |
|
---|
| 546 | status = FSW_SUCCESS;
|
---|
| 547 | goto done;
|
---|
| 548 | }
|
---|
| 549 | }
|
---|
| 550 | else if (node->kind == kBTIndexNode)
|
---|
| 551 | {
|
---|
| 552 | fsw_u32 *pointer;
|
---|
| 553 |
|
---|
| 554 | if (cmp > 0)
|
---|
| 555 | break;
|
---|
| 556 |
|
---|
| 557 | pointer = (fsw_u32 *) ((char *) currkey
|
---|
| 558 | + be16_to_cpu (currkey->length16)
|
---|
| 559 | + 2);
|
---|
| 560 | currnode = be32_to_cpu (*pointer);
|
---|
| 561 | match = 1;
|
---|
| 562 | }
|
---|
| 563 | }
|
---|
| 564 |
|
---|
| 565 | if (node->kind == kBTLeafNode && cmp < 0 && node->fLink)
|
---|
| 566 | {
|
---|
| 567 | currnode = be32_to_cpu(node->fLink);
|
---|
| 568 | goto readnode;
|
---|
| 569 | }
|
---|
| 570 | else if (!match)
|
---|
| 571 | {
|
---|
| 572 | status = FSW_NOT_FOUND;
|
---|
| 573 | break;
|
---|
| 574 | }
|
---|
| 575 | #else
|
---|
| 576 | /* Perform binary search */
|
---|
| 577 | fsw_u32 lower = 0;
|
---|
| 578 | fsw_u32 upper = count - 1;
|
---|
| 579 | fsw_s32 cmp = -1;
|
---|
| 580 | BTreeKey *currkey = NULL;
|
---|
| 581 |
|
---|
| 582 | if (count == 0)
|
---|
| 583 | {
|
---|
| 584 | status = FSW_NOT_FOUND;
|
---|
| 585 | goto done;
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | while (lower <= upper)
|
---|
| 589 | {
|
---|
| 590 | fsw_u32 index = (lower + upper) / 2;
|
---|
| 591 |
|
---|
| 592 | currkey = fsw_hfs_btree_rec (btree, node, index);
|
---|
| 593 |
|
---|
| 594 | cmp = compare_keys (currkey, key);
|
---|
| 595 | if (cmp < 0) upper = index - 1;
|
---|
| 596 | if (cmp > 0) lower = index + 1;
|
---|
| 597 | if (cmp == 0)
|
---|
| 598 | {
|
---|
| 599 | /* Found! */
|
---|
| 600 | *result = node;
|
---|
| 601 | *key_offset = rec;
|
---|
| 602 |
|
---|
| 603 | status = FSW_SUCCESS;
|
---|
| 604 | goto done;
|
---|
| 605 | }
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 | if (cmp < 0)
|
---|
| 609 | currkey = fsw_hfs_btree_rec (btree, node, upper);
|
---|
| 610 |
|
---|
| 611 | if (node->kind == kBTIndexNode && currkey)
|
---|
| 612 | {
|
---|
| 613 | fsw_u32 *pointer;
|
---|
| 614 |
|
---|
| 615 | pointer = (fsw_u32 *) ((char *) currkey
|
---|
| 616 | + be16_to_cpu (currkey->length16)
|
---|
| 617 | + 2);
|
---|
| 618 | currnode = be32_to_cpu (*pointer);
|
---|
| 619 | }
|
---|
| 620 | else
|
---|
| 621 | {
|
---|
| 622 | status = FSW_NOT_FOUND;
|
---|
| 623 | break;
|
---|
| 624 | }
|
---|
| 625 | #endif
|
---|
| 626 | }
|
---|
| 627 |
|
---|
| 628 |
|
---|
| 629 | done:
|
---|
| 630 | if (buffer != NULL && status != FSW_SUCCESS)
|
---|
| 631 | fsw_free(buffer);
|
---|
| 632 |
|
---|
| 633 | return status;
|
---|
| 634 | }
|
---|
[59146] | 635 |
|
---|
[48674] | 636 | typedef struct
|
---|
| 637 | {
|
---|
| 638 | fsw_u32 id;
|
---|
| 639 | fsw_u32 type;
|
---|
| 640 | struct fsw_string * name;
|
---|
| 641 | fsw_u64 size;
|
---|
| 642 | fsw_u64 used;
|
---|
| 643 | fsw_u32 ctime;
|
---|
| 644 | fsw_u32 mtime;
|
---|
[59146] | 645 | fsw_u32 node_num;
|
---|
[48674] | 646 | HFSPlusExtentRecord extents;
|
---|
| 647 | } file_info_t;
|
---|
| 648 |
|
---|
| 649 | typedef struct
|
---|
| 650 | {
|
---|
| 651 | fsw_u32 cur_pos; /* current position */
|
---|
| 652 | fsw_u32 parent;
|
---|
| 653 | struct fsw_hfs_volume * vol;
|
---|
| 654 |
|
---|
| 655 | struct fsw_shandle * shandle; /* this one track iterator's state */
|
---|
| 656 | file_info_t file_info;
|
---|
| 657 | } visitor_parameter_t;
|
---|
| 658 |
|
---|
[59146] | 659 | static void hfs_fill_info(struct fsw_hfs_volume *vol, HFSPlusCatalogKey *file_key, file_info_t *file_info)
|
---|
[48674] | 660 | {
|
---|
[59146] | 661 | fsw_u8 * base;
|
---|
| 662 | fsw_u16 rec_type;
|
---|
[48674] | 663 |
|
---|
[59146] | 664 | /* for plain HFS "-(keySize & 1)" would be needed */
|
---|
| 665 | base = (fsw_u8*)file_key + be16_to_cpu(file_key->keyLength) + 2;
|
---|
| 666 | rec_type = be16_to_cpu(*(fsw_u16*)base);
|
---|
[48674] | 667 |
|
---|
[69429] | 668 | /** @todo read additional info */
|
---|
[48674] | 669 | switch (rec_type)
|
---|
| 670 | {
|
---|
| 671 | case kHFSPlusFolderRecord:
|
---|
| 672 | {
|
---|
[59146] | 673 | HFSPlusCatalogFolder* info = (HFSPlusCatalogFolder*)base;
|
---|
[48674] | 674 |
|
---|
[59146] | 675 | file_info->id = be32_to_cpu(info->folderID);
|
---|
| 676 | file_info->type = FSW_DNODE_TYPE_DIR;
|
---|
[69429] | 677 | /** @todo return number of elements, maybe use smth else */
|
---|
[59146] | 678 | file_info->size = be32_to_cpu(info->valence);
|
---|
| 679 | file_info->used = be32_to_cpu(info->valence);
|
---|
| 680 | file_info->ctime = be32_to_cpu(info->createDate);
|
---|
| 681 | file_info->mtime = be32_to_cpu(info->contentModDate);
|
---|
[48674] | 682 | break;
|
---|
| 683 | }
|
---|
| 684 | case kHFSPlusFileRecord:
|
---|
| 685 | {
|
---|
[59146] | 686 | HFSPlusCatalogFile* info = (HFSPlusCatalogFile*)base;
|
---|
| 687 | uint32_t creator = be32_to_cpu(info->userInfo.fdCreator);
|
---|
| 688 | uint32_t crtype = be32_to_cpu(info->userInfo.fdType);
|
---|
[48674] | 689 |
|
---|
[59146] | 690 | file_info->id = be32_to_cpu(info->fileID);
|
---|
| 691 | file_info->type = FSW_DNODE_TYPE_FILE;
|
---|
| 692 | file_info->size = be64_to_cpu(info->dataFork.logicalSize);
|
---|
| 693 | file_info->used = LShiftU64(be32_to_cpu(info->dataFork.totalBlocks), vol->block_size_shift);
|
---|
| 694 | file_info->ctime = be32_to_cpu(info->createDate);
|
---|
| 695 | file_info->mtime = be32_to_cpu(info->contentModDate);
|
---|
| 696 | fsw_memcpy(&file_info->extents, &info->dataFork.extents,
|
---|
| 697 | sizeof file_info->extents);
|
---|
| 698 | if (creator == kHFSPlusCreator && crtype == kHardLinkFileType)
|
---|
| 699 | {
|
---|
| 700 | /* Only hard links currently supported. */
|
---|
| 701 | file_info->type = FSW_DNODE_TYPE_SYMLINK;
|
---|
| 702 | file_info->node_num = be32_to_cpu(info->bsdInfo.special.iNodeNum);
|
---|
| 703 | }
|
---|
[48674] | 704 | break;
|
---|
| 705 | }
|
---|
| 706 | case kHFSPlusFolderThreadRecord:
|
---|
| 707 | case kHFSPlusFileThreadRecord:
|
---|
| 708 | {
|
---|
[59146] | 709 | /* Do nothing. */
|
---|
| 710 | break;
|
---|
[48674] | 711 | }
|
---|
| 712 | default:
|
---|
| 713 | BP("unknown file type\n");
|
---|
[59146] | 714 | file_info->type = FSW_DNODE_TYPE_UNKNOWN;
|
---|
| 715 |
|
---|
[48674] | 716 | break;
|
---|
| 717 | }
|
---|
[59146] | 718 | }
|
---|
[48674] | 719 |
|
---|
[59146] | 720 | static int
|
---|
| 721 | fsw_hfs_btree_visit_node(BTreeKey *record, void* param)
|
---|
| 722 | {
|
---|
| 723 | visitor_parameter_t* vp = (visitor_parameter_t*)param;
|
---|
| 724 | fsw_u8* base = (fsw_u8*)record->rawData + be16_to_cpu(record->length16) + 2;
|
---|
| 725 | fsw_u16 rec_type = be16_to_cpu(*(fsw_u16*)base);
|
---|
| 726 | struct HFSPlusCatalogKey* cat_key = (HFSPlusCatalogKey*)record;
|
---|
| 727 | fsw_u16 name_len;
|
---|
| 728 | fsw_u16 *name_ptr;
|
---|
| 729 | fsw_u32 i;
|
---|
| 730 | struct fsw_string * file_name;
|
---|
| 731 |
|
---|
| 732 | if (be32_to_cpu(cat_key->parentID) != vp->parent)
|
---|
| 733 | return -1;
|
---|
| 734 |
|
---|
| 735 | /* not smth we care about */
|
---|
| 736 | if (vp->shandle->pos != vp->cur_pos++)
|
---|
| 737 | return 0;
|
---|
| 738 |
|
---|
| 739 | if (rec_type == kHFSPlusFolderThreadRecord || rec_type == kHFSPlusFileThreadRecord)
|
---|
| 740 | {
|
---|
| 741 | vp->shandle->pos++;
|
---|
| 742 | return 0;
|
---|
| 743 | }
|
---|
| 744 |
|
---|
| 745 | hfs_fill_info(vp->vol, cat_key, &vp->file_info);
|
---|
| 746 |
|
---|
[48674] | 747 | name_len = be16_to_cpu(cat_key->nodeName.length);
|
---|
| 748 |
|
---|
| 749 | file_name = vp->file_info.name;
|
---|
| 750 | file_name->len = name_len;
|
---|
| 751 | fsw_memdup(&file_name->data, &cat_key->nodeName.unicode[0], 2*name_len);
|
---|
| 752 | file_name->size = 2*name_len;
|
---|
| 753 | file_name->type = FSW_STRING_TYPE_UTF16;
|
---|
| 754 | name_ptr = (fsw_u16*)file_name->data;
|
---|
| 755 | for (i=0; i<name_len; i++)
|
---|
| 756 | {
|
---|
| 757 | name_ptr[i] = be16_to_cpu(name_ptr[i]);
|
---|
| 758 | }
|
---|
| 759 | vp->shandle->pos++;
|
---|
| 760 |
|
---|
| 761 | return 1;
|
---|
| 762 | }
|
---|
| 763 |
|
---|
| 764 | static fsw_status_t
|
---|
| 765 | fsw_hfs_btree_iterate_node (struct fsw_hfs_btree * btree,
|
---|
| 766 | BTNodeDescriptor * first_node,
|
---|
| 767 | fsw_u32 first_rec,
|
---|
| 768 | int (*callback) (BTreeKey *record, void* param),
|
---|
| 769 | void * param)
|
---|
| 770 | {
|
---|
| 771 | fsw_status_t status;
|
---|
| 772 | /* We modify node, so make a copy */
|
---|
| 773 | BTNodeDescriptor* node = first_node;
|
---|
| 774 | fsw_u8* buffer = NULL;
|
---|
| 775 |
|
---|
| 776 | status = fsw_alloc(btree->node_size, &buffer);
|
---|
| 777 | if (status)
|
---|
| 778 | return status;
|
---|
| 779 |
|
---|
| 780 | while (1)
|
---|
| 781 | {
|
---|
| 782 | fsw_u32 i;
|
---|
| 783 | fsw_u32 count = be16_to_cpu(node->numRecords);
|
---|
| 784 | fsw_u32 next_node;
|
---|
| 785 |
|
---|
| 786 | /* Iterate over all records in this node. */
|
---|
| 787 | for (i = first_rec; i < count; i++)
|
---|
| 788 | {
|
---|
| 789 | int rv = callback(fsw_hfs_btree_rec (btree, node, i), param);
|
---|
| 790 |
|
---|
| 791 | switch (rv)
|
---|
| 792 | {
|
---|
| 793 | case 1:
|
---|
| 794 | status = FSW_SUCCESS;
|
---|
| 795 | goto done;
|
---|
| 796 | case -1:
|
---|
| 797 | status = FSW_NOT_FOUND;
|
---|
| 798 | goto done;
|
---|
| 799 | }
|
---|
| 800 | /* if callback returned 0 - continue */
|
---|
| 801 | }
|
---|
| 802 |
|
---|
| 803 | next_node = be32_to_cpu(node->fLink);
|
---|
| 804 |
|
---|
| 805 | if (!next_node)
|
---|
| 806 | {
|
---|
| 807 | status = FSW_NOT_FOUND;
|
---|
| 808 | break;
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 | if (fsw_hfs_read_file (btree->file,
|
---|
| 812 | next_node * btree->node_size,
|
---|
| 813 | btree->node_size, buffer) <= 0)
|
---|
| 814 | {
|
---|
| 815 | status = FSW_VOLUME_CORRUPTED;
|
---|
| 816 | return 1;
|
---|
| 817 | }
|
---|
| 818 |
|
---|
| 819 | node = (BTNodeDescriptor*)buffer;
|
---|
| 820 | first_rec = 0;
|
---|
| 821 | }
|
---|
| 822 | done:
|
---|
| 823 | if (buffer)
|
---|
| 824 | fsw_free(buffer);
|
---|
| 825 |
|
---|
| 826 | return status;
|
---|
| 827 | }
|
---|
| 828 |
|
---|
| 829 | #if 0
|
---|
| 830 | void deb(fsw_u16* p, int len, int swap)
|
---|
| 831 | {
|
---|
| 832 | int i;
|
---|
| 833 | for (i=0; i<len; i++)
|
---|
| 834 | {
|
---|
| 835 | printf("%c", swap ? be16_to_cpu(p[i]) : p[i]);
|
---|
| 836 | }
|
---|
| 837 | printf("\n");
|
---|
| 838 | }
|
---|
| 839 | #endif
|
---|
| 840 |
|
---|
| 841 | static int
|
---|
| 842 | fsw_hfs_cmp_extkey(BTreeKey* key1, BTreeKey* key2)
|
---|
| 843 | {
|
---|
| 844 | HFSPlusExtentKey* ekey1 = (HFSPlusExtentKey*)key1;
|
---|
| 845 | HFSPlusExtentKey* ekey2 = (HFSPlusExtentKey*)key2;
|
---|
| 846 | int result;
|
---|
| 847 |
|
---|
| 848 | /* First key is read from the FS data, second is in-memory in CPU endianess */
|
---|
| 849 | result = be32_to_cpu(ekey1->fileID) - ekey2->fileID;
|
---|
| 850 |
|
---|
| 851 | if (result)
|
---|
| 852 | return result;
|
---|
| 853 |
|
---|
| 854 | result = ekey1->forkType - ekey2->forkType;
|
---|
| 855 |
|
---|
| 856 | if (result)
|
---|
| 857 | return result;
|
---|
| 858 |
|
---|
| 859 | result = be32_to_cpu(ekey1->startBlock) - ekey2->startBlock;
|
---|
| 860 | return result;
|
---|
| 861 | }
|
---|
| 862 |
|
---|
| 863 | static int
|
---|
| 864 | fsw_hfs_cmp_catkey (BTreeKey *key1, BTreeKey *key2)
|
---|
| 865 | {
|
---|
| 866 | HFSPlusCatalogKey *ckey1 = (HFSPlusCatalogKey*)key1;
|
---|
| 867 | HFSPlusCatalogKey *ckey2 = (HFSPlusCatalogKey*)key2;
|
---|
| 868 |
|
---|
| 869 | int apos, bpos, lc;
|
---|
| 870 | fsw_u16 ac, bc;
|
---|
| 871 | fsw_u32 parentId1;
|
---|
| 872 | int key1Len;
|
---|
| 873 | fsw_u16 *p1;
|
---|
| 874 | fsw_u16 *p2;
|
---|
| 875 |
|
---|
| 876 | parentId1 = be32_to_cpu(ckey1->parentID);
|
---|
| 877 |
|
---|
| 878 | if (parentId1 > ckey2->parentID)
|
---|
| 879 | return 1;
|
---|
| 880 | if (parentId1 < ckey2->parentID)
|
---|
| 881 | return -1;
|
---|
| 882 |
|
---|
| 883 | p1 = &ckey1->nodeName.unicode[0];
|
---|
| 884 | p2 = &ckey2->nodeName.unicode[0];
|
---|
| 885 | key1Len = be16_to_cpu (ckey1->nodeName.length);
|
---|
| 886 | apos = bpos = 0;
|
---|
| 887 |
|
---|
| 888 | while(1)
|
---|
| 889 | {
|
---|
| 890 | /* get next valid character from ckey1 */
|
---|
| 891 | for (lc = 0; lc == 0 && apos < key1Len; apos++) {
|
---|
| 892 | ac = be16_to_cpu(p1[apos]);
|
---|
| 893 | lc = ac;
|
---|
| 894 | };
|
---|
| 895 | ac = (fsw_u16)lc;
|
---|
| 896 |
|
---|
| 897 | /* get next valid character from ckey2 */
|
---|
| 898 | for (lc = 0; lc == 0 && bpos < ckey2->nodeName.length; bpos++) {
|
---|
| 899 | bc = p2[bpos];
|
---|
| 900 | lc = bc;
|
---|
| 901 | };
|
---|
| 902 | bc = (fsw_u16)lc;
|
---|
| 903 |
|
---|
| 904 | if (ac != bc || (ac == 0 && bc == 0))
|
---|
| 905 | return ac - bc;
|
---|
| 906 | }
|
---|
| 907 | }
|
---|
| 908 |
|
---|
| 909 | static int
|
---|
| 910 | fsw_hfs_cmpi_catkey (BTreeKey *key1, BTreeKey *key2)
|
---|
| 911 | {
|
---|
| 912 | HFSPlusCatalogKey *ckey1 = (HFSPlusCatalogKey*)key1;
|
---|
| 913 | HFSPlusCatalogKey *ckey2 = (HFSPlusCatalogKey*)key2;
|
---|
| 914 |
|
---|
| 915 | int apos, bpos, lc;
|
---|
| 916 | fsw_u16 ac, bc;
|
---|
| 917 | fsw_u32 parentId1;
|
---|
| 918 | int key1Len;
|
---|
| 919 | fsw_u16 *p1;
|
---|
| 920 | fsw_u16 *p2;
|
---|
| 921 |
|
---|
| 922 | parentId1 = be32_to_cpu(ckey1->parentID);
|
---|
| 923 |
|
---|
| 924 | if (parentId1 > ckey2->parentID)
|
---|
| 925 | return 1;
|
---|
| 926 | if (parentId1 < ckey2->parentID)
|
---|
| 927 | return -1;
|
---|
| 928 |
|
---|
| 929 | key1Len = be16_to_cpu (ckey1->nodeName.length);
|
---|
| 930 |
|
---|
| 931 | if (key1Len == 0 && ckey2->nodeName.length == 0)
|
---|
| 932 | return 0;
|
---|
| 933 |
|
---|
| 934 | p1 = &ckey1->nodeName.unicode[0];
|
---|
| 935 | p2 = &ckey2->nodeName.unicode[0];
|
---|
| 936 |
|
---|
| 937 | apos = bpos = 0;
|
---|
| 938 |
|
---|
| 939 | while(1)
|
---|
| 940 | {
|
---|
[69613] | 941 | /* get next valid (non-zero) character from ckey1 */
|
---|
[48674] | 942 | for (lc = 0; lc == 0 && apos < key1Len; apos++) {
|
---|
| 943 | ac = be16_to_cpu(p1[apos]);
|
---|
[69613] | 944 | lc = fsw_to_lower(ac); /* NB: 0x0000 is translated to 0xffff */
|
---|
[48674] | 945 | };
|
---|
| 946 | ac = (fsw_u16)lc;
|
---|
| 947 |
|
---|
[69613] | 948 | /* get next valid (non-zero) character from ckey2 */
|
---|
[48674] | 949 | for (lc = 0; lc == 0 && bpos < ckey2->nodeName.length; bpos++) {
|
---|
| 950 | bc = p2[bpos];
|
---|
[69613] | 951 | lc = fsw_to_lower(bc); /* NB: 0x0000 is translated to 0xffff */
|
---|
[48674] | 952 | };
|
---|
| 953 | bc = (fsw_u16)lc;
|
---|
| 954 |
|
---|
| 955 | if (ac != bc || (ac == 0 && bc == 0))
|
---|
| 956 | return ac - bc;
|
---|
| 957 | }
|
---|
| 958 | }
|
---|
| 959 |
|
---|
| 960 | /**
|
---|
| 961 | * Retrieve file data mapping information. This function is called by the core when
|
---|
| 962 | * fsw_shandle_read needs to know where on the disk the required piece of the file's
|
---|
| 963 | * data can be found. The core makes sure that fsw_hfs_dnode_fill has been called
|
---|
| 964 | * on the dnode before. Our task here is to get the physical disk block number for
|
---|
| 965 | * the requested logical block number.
|
---|
| 966 | */
|
---|
| 967 |
|
---|
| 968 | static fsw_status_t fsw_hfs_get_extent(struct fsw_hfs_volume * vol,
|
---|
| 969 | struct fsw_hfs_dnode * dno,
|
---|
| 970 | struct fsw_extent * extent)
|
---|
| 971 | {
|
---|
| 972 | fsw_status_t status;
|
---|
| 973 | fsw_u32 lbno;
|
---|
| 974 | HFSPlusExtentRecord *exts;
|
---|
| 975 | BTNodeDescriptor *node = NULL;
|
---|
| 976 |
|
---|
| 977 | extent->type = FSW_EXTENT_TYPE_PHYSBLOCK;
|
---|
| 978 | extent->log_count = 1;
|
---|
| 979 | lbno = extent->log_start;
|
---|
| 980 |
|
---|
| 981 | /* we only care about data forks atm, do we? */
|
---|
| 982 | exts = &dno->extents;
|
---|
| 983 |
|
---|
| 984 | while (1)
|
---|
| 985 | {
|
---|
| 986 | struct HFSPlusExtentKey* key;
|
---|
| 987 | struct HFSPlusExtentKey overflowkey;
|
---|
| 988 | fsw_u32 ptr;
|
---|
| 989 | fsw_u32 phys_bno;
|
---|
| 990 |
|
---|
| 991 | if (fsw_hfs_find_block(exts, &lbno, &phys_bno))
|
---|
| 992 | {
|
---|
| 993 | extent->phys_start = phys_bno + vol->emb_block_off;
|
---|
| 994 | status = FSW_SUCCESS;
|
---|
| 995 | break;
|
---|
| 996 | }
|
---|
| 997 |
|
---|
| 998 |
|
---|
| 999 | /* Find appropriate overflow record */
|
---|
| 1000 | overflowkey.fileID = dno->g.dnode_id;
|
---|
| 1001 | overflowkey.startBlock = extent->log_start - lbno;
|
---|
| 1002 |
|
---|
| 1003 | if (node != NULL)
|
---|
| 1004 | {
|
---|
| 1005 | fsw_free(node);
|
---|
| 1006 | node = NULL;
|
---|
| 1007 | }
|
---|
| 1008 |
|
---|
| 1009 | status = fsw_hfs_btree_search (&vol->extents_tree,
|
---|
| 1010 | (BTreeKey*)&overflowkey,
|
---|
| 1011 | fsw_hfs_cmp_extkey,
|
---|
| 1012 | &node, &ptr);
|
---|
| 1013 | if (status)
|
---|
| 1014 | break;
|
---|
| 1015 |
|
---|
| 1016 | key = (struct HFSPlusExtentKey *)
|
---|
| 1017 | fsw_hfs_btree_rec (&vol->extents_tree, node, ptr);
|
---|
| 1018 | exts = (HFSPlusExtentRecord*) (key + 1);
|
---|
| 1019 | }
|
---|
| 1020 |
|
---|
| 1021 | if (node != NULL)
|
---|
| 1022 | fsw_free(node);
|
---|
| 1023 |
|
---|
| 1024 | return status;
|
---|
| 1025 | }
|
---|
| 1026 |
|
---|
| 1027 | static const fsw_u16* g_blacklist[] =
|
---|
| 1028 | {
|
---|
| 1029 | //L"AppleIntelCPUPowerManagement.kext",
|
---|
| 1030 | NULL
|
---|
| 1031 | };
|
---|
| 1032 |
|
---|
| 1033 |
|
---|
| 1034 | //#define HFS_FILE_INJECTION
|
---|
| 1035 |
|
---|
| 1036 | #ifdef HFS_FILE_INJECTION
|
---|
| 1037 | static struct
|
---|
| 1038 | {
|
---|
| 1039 | const fsw_u16* path;
|
---|
| 1040 | const fsw_u16* name;
|
---|
| 1041 | } g_injectList[] =
|
---|
| 1042 | {
|
---|
| 1043 | {
|
---|
| 1044 | L"/System/Library/Extensions",
|
---|
| 1045 | L"ApplePS2Controller.kext"
|
---|
| 1046 | },
|
---|
| 1047 | {
|
---|
| 1048 | NULL,
|
---|
| 1049 | NULL
|
---|
| 1050 | }
|
---|
| 1051 | };
|
---|
| 1052 | #endif
|
---|
| 1053 |
|
---|
| 1054 | static fsw_status_t
|
---|
| 1055 | create_hfs_dnode(struct fsw_hfs_dnode * dno,
|
---|
| 1056 | file_info_t * file_info,
|
---|
| 1057 | struct fsw_hfs_dnode ** child_dno_out)
|
---|
| 1058 | {
|
---|
| 1059 | fsw_status_t status;
|
---|
| 1060 | struct fsw_hfs_dnode * baby;
|
---|
| 1061 |
|
---|
| 1062 | status = fsw_dnode_create(dno, file_info->id, file_info->type,
|
---|
| 1063 | file_info->name, &baby);
|
---|
| 1064 | if (status)
|
---|
| 1065 | return status;
|
---|
| 1066 |
|
---|
| 1067 | baby->g.size = file_info->size;
|
---|
| 1068 | baby->used_bytes = file_info->used;
|
---|
| 1069 | baby->ctime = file_info->ctime;
|
---|
| 1070 | baby->mtime = file_info->mtime;
|
---|
[59146] | 1071 | baby->node_num = file_info->node_num;
|
---|
[48674] | 1072 |
|
---|
| 1073 |
|
---|
| 1074 | /* Fill-in extents info */
|
---|
| 1075 | if (file_info->type == FSW_DNODE_TYPE_FILE)
|
---|
| 1076 | {
|
---|
| 1077 | fsw_memcpy(baby->extents, &file_info->extents, sizeof file_info->extents);
|
---|
| 1078 | }
|
---|
| 1079 |
|
---|
| 1080 | *child_dno_out = baby;
|
---|
| 1081 |
|
---|
| 1082 | return FSW_SUCCESS;
|
---|
| 1083 | }
|
---|
| 1084 |
|
---|
| 1085 |
|
---|
| 1086 | /**
|
---|
| 1087 | * Lookup a directory's child dnode by name. This function is called on a directory
|
---|
| 1088 | * to retrieve the directory entry with the given name. A dnode is constructed for
|
---|
| 1089 | * this entry and returned. The core makes sure that fsw_hfs_dnode_fill has been called
|
---|
| 1090 | * and the dnode is actually a directory.
|
---|
| 1091 | */
|
---|
| 1092 |
|
---|
| 1093 | static fsw_status_t fsw_hfs_dir_lookup(struct fsw_hfs_volume * vol,
|
---|
| 1094 | struct fsw_hfs_dnode * dno,
|
---|
| 1095 | struct fsw_string * lookup_name,
|
---|
| 1096 | struct fsw_hfs_dnode ** child_dno_out)
|
---|
| 1097 | {
|
---|
| 1098 | fsw_status_t status;
|
---|
| 1099 | struct HFSPlusCatalogKey catkey;
|
---|
| 1100 | fsw_u32 ptr;
|
---|
| 1101 | BTNodeDescriptor * node = NULL;
|
---|
| 1102 | struct fsw_string rec_name;
|
---|
| 1103 | int free_data = 0, i;
|
---|
| 1104 | HFSPlusCatalogKey* file_key;
|
---|
| 1105 | file_info_t file_info;
|
---|
| 1106 |
|
---|
| 1107 |
|
---|
| 1108 | fsw_memzero(&file_info, sizeof file_info);
|
---|
| 1109 | file_info.name = &rec_name;
|
---|
| 1110 |
|
---|
| 1111 | catkey.parentID = dno->g.dnode_id;
|
---|
| 1112 | catkey.nodeName.length = (fsw_u16)lookup_name->len;
|
---|
| 1113 |
|
---|
| 1114 | /* no need to allocate anything */
|
---|
| 1115 | if (lookup_name->type == FSW_STRING_TYPE_UTF16)
|
---|
| 1116 | {
|
---|
| 1117 | fsw_memcpy(catkey.nodeName.unicode, lookup_name->data, lookup_name->size);
|
---|
| 1118 | rec_name = *lookup_name;
|
---|
| 1119 | } else
|
---|
| 1120 | {
|
---|
| 1121 | status = fsw_strdup_coerce(&rec_name, FSW_STRING_TYPE_UTF16, lookup_name);
|
---|
| 1122 | /* nothing allocated so far */
|
---|
| 1123 | if (status)
|
---|
| 1124 | goto done;
|
---|
| 1125 | free_data = 1;
|
---|
| 1126 | fsw_memcpy(catkey.nodeName.unicode, rec_name.data, rec_name.size);
|
---|
| 1127 | }
|
---|
| 1128 |
|
---|
| 1129 | /* Dirty hack: blacklisting of certain files on FS driver level */
|
---|
| 1130 | for (i = 0; g_blacklist[i]; i++)
|
---|
| 1131 | {
|
---|
| 1132 | if (fsw_memeq(g_blacklist[i], catkey.nodeName.unicode, catkey.nodeName.length*2))
|
---|
| 1133 | {
|
---|
| 1134 | DPRINT2("Blacklisted %s\n", g_blacklist[i]);
|
---|
| 1135 | status = FSW_NOT_FOUND;
|
---|
| 1136 | goto done;
|
---|
| 1137 | }
|
---|
| 1138 | }
|
---|
| 1139 |
|
---|
| 1140 | #ifdef HFS_FILE_INJECTION
|
---|
| 1141 | if (fsw_hfs_inject(vol,
|
---|
| 1142 | dno,
|
---|
| 1143 | catkey.nodeName.unicode,
|
---|
| 1144 | catkey.nodeName.length,
|
---|
| 1145 | &file_info))
|
---|
| 1146 | {
|
---|
| 1147 | status = FSW_SUCCESS;
|
---|
| 1148 | goto create;
|
---|
| 1149 | }
|
---|
| 1150 | #endif
|
---|
| 1151 |
|
---|
[59146] | 1152 | catkey.keyLength = (fsw_u16)(6 + rec_name.len);
|
---|
[48674] | 1153 |
|
---|
| 1154 | status = fsw_hfs_btree_search (&vol->catalog_tree,
|
---|
| 1155 | (BTreeKey*)&catkey,
|
---|
| 1156 | vol->case_sensitive ?
|
---|
| 1157 | fsw_hfs_cmp_catkey : fsw_hfs_cmpi_catkey,
|
---|
| 1158 | &node, &ptr);
|
---|
| 1159 | if (status)
|
---|
| 1160 | goto done;
|
---|
| 1161 |
|
---|
| 1162 | file_key = (HFSPlusCatalogKey *)fsw_hfs_btree_rec (&vol->catalog_tree, node, ptr);
|
---|
[59146] | 1163 | hfs_fill_info(vol, file_key, &file_info);
|
---|
[48674] | 1164 |
|
---|
| 1165 | #ifdef HFS_FILE_INJECTION
|
---|
| 1166 | create:
|
---|
| 1167 | #endif
|
---|
| 1168 | status = create_hfs_dnode(dno, &file_info, child_dno_out);
|
---|
| 1169 | if (status)
|
---|
| 1170 | goto done;
|
---|
| 1171 |
|
---|
| 1172 | done:
|
---|
| 1173 |
|
---|
| 1174 | if (node != NULL)
|
---|
| 1175 | fsw_free(node);
|
---|
| 1176 |
|
---|
| 1177 | if (free_data)
|
---|
| 1178 | fsw_strfree(&rec_name);
|
---|
| 1179 |
|
---|
| 1180 | return status;
|
---|
| 1181 | }
|
---|
| 1182 |
|
---|
| 1183 | /**
|
---|
| 1184 | * Get the next directory entry when reading a directory. This function is called during
|
---|
| 1185 | * directory iteration to retrieve the next directory entry. A dnode is constructed for
|
---|
| 1186 | * the entry and returned. The core makes sure that fsw_hfs_dnode_fill has been called
|
---|
| 1187 | * and the dnode is actually a directory. The shandle provided by the caller is used to
|
---|
| 1188 | * record the position in the directory between calls.
|
---|
| 1189 | */
|
---|
| 1190 |
|
---|
| 1191 | static fsw_status_t fsw_hfs_dir_read(struct fsw_hfs_volume *vol,
|
---|
| 1192 | struct fsw_hfs_dnode *dno,
|
---|
| 1193 | struct fsw_shandle *shand,
|
---|
| 1194 | struct fsw_hfs_dnode **child_dno_out)
|
---|
| 1195 | {
|
---|
| 1196 | fsw_status_t status;
|
---|
| 1197 | struct HFSPlusCatalogKey catkey;
|
---|
| 1198 | fsw_u32 ptr;
|
---|
| 1199 | BTNodeDescriptor * node = NULL;
|
---|
| 1200 |
|
---|
| 1201 | visitor_parameter_t param;
|
---|
| 1202 | struct fsw_string rec_name;
|
---|
| 1203 |
|
---|
| 1204 | catkey.parentID = dno->g.dnode_id;
|
---|
| 1205 | catkey.nodeName.length = 0;
|
---|
| 1206 |
|
---|
| 1207 | fsw_memzero(¶m, sizeof(param));
|
---|
| 1208 |
|
---|
| 1209 | rec_name.type = FSW_STRING_TYPE_EMPTY;
|
---|
| 1210 | param.file_info.name = &rec_name;
|
---|
| 1211 |
|
---|
| 1212 | status = fsw_hfs_btree_search (&vol->catalog_tree,
|
---|
| 1213 | (BTreeKey*)&catkey,
|
---|
| 1214 | vol->case_sensitive ?
|
---|
| 1215 | fsw_hfs_cmp_catkey : fsw_hfs_cmpi_catkey,
|
---|
| 1216 | &node, &ptr);
|
---|
| 1217 | if (status)
|
---|
| 1218 | goto done;
|
---|
| 1219 |
|
---|
| 1220 | /* Iterator updates shand state */
|
---|
| 1221 | param.vol = vol;
|
---|
| 1222 | param.shandle = shand;
|
---|
| 1223 | param.parent = dno->g.dnode_id;
|
---|
| 1224 | param.cur_pos = 0;
|
---|
| 1225 | status = fsw_hfs_btree_iterate_node (&vol->catalog_tree,
|
---|
| 1226 | node,
|
---|
| 1227 | ptr,
|
---|
| 1228 | fsw_hfs_btree_visit_node,
|
---|
| 1229 | ¶m);
|
---|
| 1230 | if (status)
|
---|
| 1231 | goto done;
|
---|
| 1232 |
|
---|
| 1233 | status = create_hfs_dnode(dno, ¶m.file_info, child_dno_out);
|
---|
| 1234 |
|
---|
| 1235 | if (status)
|
---|
| 1236 | goto done;
|
---|
| 1237 |
|
---|
| 1238 | done:
|
---|
| 1239 | fsw_strfree(&rec_name);
|
---|
| 1240 |
|
---|
| 1241 | return status;
|
---|
| 1242 | }
|
---|
| 1243 |
|
---|
[59146] | 1244 | static const char hfs_priv_prefix[] = "/\0\0\0\0HFS+ Private Data/" HFS_INODE_PREFIX;
|
---|
| 1245 |
|
---|
[48674] | 1246 | /**
|
---|
| 1247 | * Get the target path of a symbolic link. This function is called when a symbolic
|
---|
| 1248 | * link needs to be resolved. The core makes sure that the fsw_hfs_dnode_fill has been
|
---|
| 1249 | * called on the dnode and that it really is a symlink.
|
---|
| 1250 | *
|
---|
| 1251 | */
|
---|
| 1252 | static fsw_status_t fsw_hfs_readlink(struct fsw_hfs_volume *vol, struct fsw_hfs_dnode *dno,
|
---|
| 1253 | struct fsw_string *link_target)
|
---|
| 1254 | {
|
---|
[59146] | 1255 | fsw_status_t status;
|
---|
| 1256 |
|
---|
| 1257 | if (dno->node_num)
|
---|
| 1258 | {
|
---|
| 1259 | struct fsw_string tgt;
|
---|
| 1260 |
|
---|
| 1261 | DPRINT2("hfs_readlink: %d\n", dno->node_num);
|
---|
| 1262 | tgt.type = FSW_STRING_TYPE_ISO88591;
|
---|
| 1263 | tgt.size = sizeof(hfs_priv_prefix) + 10;
|
---|
| 1264 | tgt.len = tgt.size - 1;
|
---|
| 1265 | status = fsw_alloc(tgt.size, &tgt.data);
|
---|
| 1266 | if (!status)
|
---|
| 1267 | {
|
---|
| 1268 | char *str = tgt.data;
|
---|
| 1269 | fsw_memcpy(tgt.data, hfs_priv_prefix, sizeof(hfs_priv_prefix)); // null chars here!
|
---|
| 1270 | #ifdef HOST_POSIX
|
---|
| 1271 | tgt.len = sprintf(&str[sizeof(hfs_priv_prefix) - 1], "%d", dno->node_num);
|
---|
| 1272 | #else
|
---|
| 1273 | tgt.len = (int)AsciiSPrint(&str[sizeof(hfs_priv_prefix) - 1], tgt.len, "%d", dno->node_num);
|
---|
| 1274 | #endif
|
---|
| 1275 | tgt.len += sizeof(hfs_priv_prefix) - 1;
|
---|
| 1276 | status = fsw_strdup_coerce(link_target, vol->g.host_string_type, &tgt);
|
---|
| 1277 | fsw_strfree(&tgt);
|
---|
| 1278 | }
|
---|
| 1279 | return status;
|
---|
| 1280 | }
|
---|
| 1281 |
|
---|
[48674] | 1282 | return FSW_UNSUPPORTED;
|
---|
| 1283 | }
|
---|
| 1284 |
|
---|
[82400] | 1285 | static int fsw_hfs_btree_find_id(BTreeKey *record, void* param)
|
---|
| 1286 | {
|
---|
| 1287 | visitor_parameter_t *vp = (visitor_parameter_t*)param;
|
---|
| 1288 | fsw_u8 *base = (fsw_u8*)record->rawData + be16_to_cpu(record->length16) + 2;
|
---|
| 1289 | fsw_u16 rec_type = be16_to_cpu(*(fsw_u16*)base);
|
---|
| 1290 | struct HFSPlusCatalogKey *cat_key = (HFSPlusCatalogKey*)record;
|
---|
| 1291 | fsw_u16 name_len;
|
---|
| 1292 | fsw_u16 *name_ptr;
|
---|
| 1293 | fsw_u16 *old_ptr;
|
---|
| 1294 | int i;
|
---|
| 1295 | struct fsw_string *file_name;
|
---|
| 1296 | struct fsw_string new_name;
|
---|
| 1297 |
|
---|
| 1298 | if (be32_to_cpu(cat_key->parentID) != vp->parent)
|
---|
| 1299 | return -1;
|
---|
| 1300 |
|
---|
| 1301 | if (!vp->cur_pos)
|
---|
| 1302 | vp->cur_pos = be32_to_cpu(cat_key->parentID);
|
---|
| 1303 |
|
---|
| 1304 | /* Not what we're looking for. */
|
---|
| 1305 | if (vp->file_info.id != vp->cur_pos++)
|
---|
| 1306 | return 0;
|
---|
| 1307 |
|
---|
| 1308 | if (rec_type == kHFSPlusFolderThreadRecord || rec_type == kHFSPlusFileThreadRecord)
|
---|
| 1309 | {
|
---|
| 1310 | HFSPlusCatalogThread *thread;
|
---|
| 1311 |
|
---|
| 1312 | thread = (HFSPlusCatalogThread *)base;
|
---|
| 1313 | vp->file_info.id = be32_to_cpu(thread->parentID);
|
---|
| 1314 |
|
---|
| 1315 | name_len = be16_to_cpu(thread->nodeName.length);
|
---|
| 1316 |
|
---|
| 1317 | file_name = vp->file_info.name;
|
---|
| 1318 |
|
---|
| 1319 | new_name.len = name_len + 1 + file_name->len;
|
---|
[82517] | 1320 | new_name.size = sizeof(fsw_u16) * new_name.len;
|
---|
[82400] | 1321 | fsw_alloc(new_name.size, &new_name.data);
|
---|
| 1322 | name_ptr = (fsw_u16*)new_name.data;
|
---|
| 1323 | /* Tack on path separator. */
|
---|
[82517] | 1324 | #ifdef HOST_POSIX
|
---|
[82400] | 1325 | name_ptr[0] = L'/';
|
---|
[82517] | 1326 | #else
|
---|
| 1327 | name_ptr[0] = L'\\';
|
---|
| 1328 | #endif
|
---|
[82400] | 1329 | /* Copy over + swap the new path component. */
|
---|
| 1330 | for (i = 0; i < name_len; i++)
|
---|
| 1331 | name_ptr[i + 1] = be16_to_cpu(thread->nodeName.unicode[i]);
|
---|
| 1332 | if (file_name->len) {
|
---|
| 1333 | /* Tack on the previous path. */
|
---|
| 1334 | old_ptr = (fsw_u16*)file_name->data;
|
---|
| 1335 | for (++i; i < new_name.len; i++ )
|
---|
| 1336 | name_ptr[i] = *old_ptr++;
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
| 1339 | fsw_free(file_name->data);
|
---|
| 1340 | file_name->len = new_name.len;
|
---|
| 1341 | file_name->size = new_name.size;
|
---|
| 1342 | file_name->data = new_name.data;
|
---|
| 1343 | file_name->type = FSW_STRING_TYPE_UTF16;
|
---|
| 1344 |
|
---|
| 1345 | /* This was it, stop iterating. */
|
---|
| 1346 | return 1;
|
---|
| 1347 | }
|
---|
| 1348 |
|
---|
| 1349 | return 0;
|
---|
| 1350 | }
|
---|
| 1351 |
|
---|
| 1352 | /**
|
---|
| 1353 | * Obtain the full path of a file given its CNID (Catalog Node ID), i.e.
|
---|
| 1354 | * file or folder ID.
|
---|
| 1355 | *
|
---|
| 1356 | */
|
---|
| 1357 | static fsw_status_t fsw_hfs_get_path_from_cnid(struct fsw_hfs_volume *vol, fsw_u32 cnid, struct fsw_string *path)
|
---|
| 1358 | {
|
---|
| 1359 | fsw_status_t status = FSW_UNSUPPORTED;
|
---|
| 1360 | fsw_u32 ptr;
|
---|
| 1361 | BTNodeDescriptor *node = NULL;
|
---|
| 1362 | struct HFSPlusCatalogKey catkey;
|
---|
| 1363 | visitor_parameter_t param;
|
---|
| 1364 | struct fsw_string rec_name;
|
---|
| 1365 |
|
---|
| 1366 | /* The CNID must be a valid user node ID. */
|
---|
| 1367 | if (cnid < kHFSFirstUserCatalogNodeID)
|
---|
| 1368 | goto done;
|
---|
| 1369 |
|
---|
| 1370 | fsw_memzero(¶m, sizeof(param));
|
---|
[82520] | 1371 | fsw_memzero(&rec_name, sizeof(rec_name));
|
---|
[82400] | 1372 |
|
---|
| 1373 | catkey.parentID = cnid;
|
---|
| 1374 | catkey.nodeName.length = 0;
|
---|
| 1375 |
|
---|
| 1376 | param.vol = vol;
|
---|
| 1377 | param.shandle = NULL;
|
---|
| 1378 | param.file_info.id = cnid;
|
---|
| 1379 | param.parent = cnid;
|
---|
| 1380 | param.cur_pos = 0;
|
---|
| 1381 |
|
---|
| 1382 | do {
|
---|
| 1383 | rec_name.type = FSW_STRING_TYPE_EMPTY;
|
---|
| 1384 | param.file_info.name = &rec_name;
|
---|
| 1385 |
|
---|
| 1386 | status = fsw_hfs_btree_search(&vol->catalog_tree, (BTreeKey*)&catkey,
|
---|
| 1387 | vol->case_sensitive ? fsw_hfs_cmp_catkey : fsw_hfs_cmpi_catkey,
|
---|
| 1388 | &node, &ptr);
|
---|
| 1389 | if (status)
|
---|
| 1390 | goto done;
|
---|
| 1391 |
|
---|
| 1392 | status = fsw_hfs_btree_iterate_node(&vol->catalog_tree, node, ptr,
|
---|
| 1393 | fsw_hfs_btree_find_id, ¶m);
|
---|
| 1394 | if (status)
|
---|
| 1395 | goto done;
|
---|
| 1396 |
|
---|
| 1397 | param.parent = param.file_info.id;
|
---|
| 1398 | param.cur_pos = 0;
|
---|
| 1399 |
|
---|
| 1400 | catkey.parentID = param.file_info.id;
|
---|
| 1401 | catkey.nodeName.length = 0;
|
---|
| 1402 | } while (catkey.parentID >= kHFSFirstUserCatalogNodeID);
|
---|
| 1403 |
|
---|
| 1404 | /* If everything worked out , the final parent ID will be the root folder ID. */
|
---|
| 1405 | if (catkey.parentID == kHFSRootFolderID)
|
---|
| 1406 | {
|
---|
| 1407 | *path = *param.file_info.name;
|
---|
| 1408 | status = FSW_SUCCESS;
|
---|
| 1409 | }
|
---|
| 1410 | else
|
---|
| 1411 | status = FSW_NOT_FOUND;
|
---|
| 1412 |
|
---|
| 1413 | done:
|
---|
| 1414 | return status;
|
---|
| 1415 | }
|
---|
| 1416 |
|
---|
| 1417 | /**
|
---|
| 1418 | * Get the path of the HFS+ blessed file, if any.
|
---|
| 1419 | *
|
---|
| 1420 | */
|
---|
| 1421 | /*static*/ fsw_status_t fsw_hfs_get_blessed_file(struct fsw_hfs_volume *vol, struct fsw_string *path)
|
---|
| 1422 | {
|
---|
| 1423 | fsw_status_t status = FSW_UNSUPPORTED;
|
---|
| 1424 | fsw_u32 bfile_id;
|
---|
| 1425 | fsw_u32 *finderinfo;
|
---|
| 1426 |
|
---|
| 1427 | finderinfo = (fsw_u32 *)&vol->primary_voldesc->finderInfo;
|
---|
| 1428 | bfile_id = finderinfo[1];
|
---|
| 1429 | bfile_id = be32_to_cpu(bfile_id);
|
---|
| 1430 |
|
---|
| 1431 | DPRINT2("Blessed file ID: %u\n", bfile_id);
|
---|
| 1432 |
|
---|
| 1433 | status = fsw_hfs_get_path_from_cnid(vol, bfile_id, path);
|
---|
| 1434 | #ifdef HOST_POSIX
|
---|
| 1435 | if (!status)
|
---|
| 1436 | {
|
---|
| 1437 | fsw_u16 *name_ptr;
|
---|
| 1438 | int i;
|
---|
| 1439 |
|
---|
| 1440 | printf("Blessed file: ");
|
---|
| 1441 | name_ptr = (fsw_u16*)path->data;
|
---|
| 1442 | for (i = 0; i < path->len; i++)
|
---|
| 1443 | printf("%c", name_ptr[i]);
|
---|
| 1444 | printf("\n");
|
---|
| 1445 | }
|
---|
| 1446 | #endif
|
---|
| 1447 |
|
---|
| 1448 | return status;
|
---|
| 1449 | }
|
---|
| 1450 |
|
---|
[48674] | 1451 | // EOF
|
---|