135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/*
|
|
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
|
|
*
|
|
* @APPLE_LICENSE_HEADER_START@
|
|
*
|
|
* The contents of this file constitute Original Code as defined in and
|
|
* are subject to the Apple Public Source License Version 1.1 (the
|
|
* "License"). You may not use this file except in compliance with the
|
|
* License. Please obtain a copy of the License at
|
|
* http://www.apple.com/publicsource and read it before using this file.
|
|
*
|
|
* This Original Code and all software distributed under the License are
|
|
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
|
|
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
|
|
* License for the specific language governing rights and limitations
|
|
* under the License.
|
|
*
|
|
* @APPLE_LICENSE_HEADER_END@
|
|
*/
|
|
/* Derived from: */
|
|
/*
|
|
* fs.h - Externs for the File System Modules
|
|
*
|
|
* Copyright (c) 1999-2004 Apple Computer, Inc.
|
|
*
|
|
* DRI: Josh de Cesare
|
|
*/
|
|
|
|
#ifndef _BOOTX_FS_H_
|
|
#define _BOOTX_FS_H_
|
|
|
|
// tunable
|
|
#define kFSCacheSize (64 * 1024)
|
|
|
|
// File Permissions and Types
|
|
enum {
|
|
kPermOtherExecute = 1 << 0,
|
|
kPermOtherWrite = 1 << 1,
|
|
kPermOtherRead = 1 << 2,
|
|
kPermGroupExecute = 1 << 3,
|
|
kPermGroupWrite = 1 << 4,
|
|
kPermGroupRead = 1 << 5,
|
|
kPermOwnerExecute = 1 << 6,
|
|
kPermOwnerWrite = 1 << 7,
|
|
kPermOwnerRead = 1 << 8,
|
|
kPermMask = 0x1FF,
|
|
kOwnerNotRoot = 1 << 9,
|
|
kFileTypeUnknown = 0x0 << 16,
|
|
kFileTypeFlat = 0x1 << 16,
|
|
kFileTypeDirectory = 0x2 << 16,
|
|
kFileTypeLink = 0x3 << 16,
|
|
kFileTypeMask = 0x3 << 16
|
|
};
|
|
|
|
typedef void *CICell;
|
|
|
|
// Externs for cache.c
|
|
extern uint32_t gCacheHits;
|
|
extern uint32_t gCacheMisses;
|
|
extern uint32_t gCacheEvicts;
|
|
|
|
extern void CacheInit(CICell ih, uint32_t chunkSize);
|
|
extern uint32_t CacheRead(CICell ih, uint8_t *buffer, off_t offset,
|
|
uint32_t length, bool cache);
|
|
|
|
// Externs for hfs.c
|
|
extern int HFSInitPartition(CICell ih);
|
|
extern int HFSDetect(void);
|
|
extern int HFSReadFile(CICell ih, const char *filePath, void *base, off_t offset, size_t length);
|
|
extern int HFSGetFileInfo(CICell ih, const char *filePath, uint32_t *flags, time_t *time, off_t *size);
|
|
extern int HFSGetDirEntry(CICell ih, const char *dirPath, off_t *dirIndex, char *name, size_t nameSize, uint32_t *flags, time_t *time, off_t *size);
|
|
extern struct HFSPlusVolumeHeader *HFSGetVolumeHeader(void);
|
|
|
|
// Externs for hfs_fs.c
|
|
extern int HFSBlockRead(CICell *ih, void *buf, off_t offset, uint32_t length);
|
|
|
|
/*
|
|
* We may need to work with big-endian data that's not
|
|
* aligned. For ARM at least, this is an issue. Rather
|
|
* than use swap functions and macrotize, these are explicitly
|
|
* called out to avoid alignment issues even on big-endian systems.
|
|
*
|
|
* No these aren't efficient. No, it doesn't really matter...
|
|
*/
|
|
static inline u_int64_t
|
|
HFSntohll(const void *ov)
|
|
{
|
|
unsigned const char *ovb = (unsigned const char *)ov;
|
|
|
|
return(((u_int64_t)ovb[0] << 56) +
|
|
((u_int64_t)ovb[1] << 48) +
|
|
((u_int64_t)ovb[2] << 40) +
|
|
((u_int64_t)ovb[3] << 32) +
|
|
((u_int64_t)ovb[4] << 24) +
|
|
((u_int64_t)ovb[5] << 16) +
|
|
((u_int64_t)ovb[6] << 8) +
|
|
(u_int64_t)ovb[7]);
|
|
}
|
|
|
|
static inline u_int32_t
|
|
HFSntohl(const void *ov)
|
|
{
|
|
unsigned const char *ovb = (unsigned const char *)ov;
|
|
|
|
return(((u_int32_t)ovb[0] << 24) +
|
|
((u_int32_t)ovb[1] << 16) +
|
|
((u_int32_t)ovb[2] << 8) +
|
|
(u_int32_t)ovb[3]);
|
|
}
|
|
|
|
static inline u_int16_t
|
|
HFSntohs(const void *ov)
|
|
{
|
|
unsigned const char *ovb = (unsigned const char *)ov;
|
|
|
|
return(((u_int16_t)ovb[0] << 8) + (u_int16_t)ovb[1]);
|
|
}
|
|
|
|
static inline short
|
|
HFShtons(const unsigned short ov)
|
|
{
|
|
unsigned short nv;
|
|
unsigned char *nvb = (unsigned char *)&nv;
|
|
|
|
nvb[0] = (ov >> 8);
|
|
nvb[1] = ov & 0xff;
|
|
|
|
return(nv);
|
|
}
|
|
|
|
|
|
#endif /* ! _BOOTX_FS_H_ */
|