mirror of
https://gitlab.com/Nanolx/homebrewfilter.git
synced 2024-11-01 23:25:09 +01:00
723 lines
19 KiB
C++
723 lines
19 KiB
C++
/****************************************************************************
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* WiiMC
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* Tantric 2009-2010
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*
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* fileop.cpp
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* File operations
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***************************************************************************/
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#include <gccore.h>
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#include <errno.h>
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#include <ogcsys.h>
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#include <ogc/lwp_watchdog.h>
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#include <ogc/machine/processor.h>
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#include <ntfs.h>
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#include <fat.h>
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#include <ext2.h>
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#include <iso9660.h>
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#include <sdcard/wiisd_io.h>
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#include <ogc/usbstorage.h>
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#include <dirent.h>
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#include <di/di.h>
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#include "fileop.h"
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#include "main.h"
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#include "Tools/app_list.h"
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#include "Tools/copy_app_in_category.h"
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#include "Tools/throbber.h"
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static const DISC_INTERFACE* sd = &__io_wiisd;
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static const DISC_INTERFACE* usb = &__io_usbstorage;
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static const DISC_INTERFACE* dvd = &__io_wiidvd;
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enum
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{
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DEVICE_SD,
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DEVICE_USB,
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DEVICE_DVD
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};
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static char prefix[3][7] = { "sd", "usb", "dvd" };
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/****************************************************************************
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* FindPartitions
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*
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* Finds all partitions on the specified device
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***************************************************************************/
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#define le32_to_cpu(x) bswap32(x)
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#define BYTES_PER_SECTOR 4096
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#define NTFS_OEM_ID (0x4e54465320202020ULL)
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#define PARTITION_TYPE_EMPTY 0x00 /* Empty */
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#define PARTITION_TYPE_DOS33_EXTENDED 0x05 /* DOS 3.3+ extended partition */
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#define PARTITION_TYPE_NTFS 0x07 /* Windows NT NTFS */
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#define PARTITION_TYPE_WIN95_EXTENDED 0x0F /* Windows 95 extended partition */
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#define PARTITION_TYPE_LINUX 0x83 /* GNU/Linux partition */
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#define PARTITION_TYPE_LINUX_SWAP 0x82 /* GNU/Linux Swap partition */
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#define PARTITION_TYPE_LINUX_LVM 0x8e /* GNU/Linux logical volume manager partition */
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#define PARTITION_TYPE_LINUX_LUKS 0xe8 /* GNU/Linux LUKS partition */
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#define PARTITION_STATUS_NONBOOTABLE 0x00 /* Non-bootable */
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#define PARTITION_STATUS_BOOTABLE 0x80 /* Bootable (active) */
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#define MBR_SIGNATURE (0x55AA)
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#define EBR_SIGNATURE (0x55AA)
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#define BPB_FAT16_fileSysType 0x36
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#define BPB_FAT32_fileSysType 0x52
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#define T_FAT 1
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#define T_NTFS 2
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#define T_EXT2 3
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#define T_ISO9660 4
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static const char FAT_SIG[3] = {'F', 'A', 'T'};
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/**
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* PRIMARY_PARTITION - Block device partition record
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*/
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typedef struct _PARTITION_RECORD {
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u8 status; /* Partition status; see above */
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u8 chs_start[3]; /* Cylinder-head-sector address to first block of partition */
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u8 type; /* Partition type; see above */
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u8 chs_end[3]; /* Cylinder-head-sector address to last block of partition */
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u32 lba_start; /* Local block address to first sector of partition */
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u32 block_count; /* Number of blocks in partition */
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} __attribute__((__packed__)) PARTITION_RECORD;
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/**
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* MASTER_BOOT_RECORD - Block device master boot record
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*/
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typedef struct _MASTER_BOOT_RECORD {
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u8 code_area[446]; /* Code area; normally empty */
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PARTITION_RECORD partitions[4]; /* 4 primary partitions */
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u16 signature; /* MBR signature; 0xAA55 */
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} __attribute__((__packed__)) MASTER_BOOT_RECORD;
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/**
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* struct BIOS_PARAMETER_BLOCK - BIOS parameter block (bpb) structure.
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*/
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typedef struct {
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u16 bytes_per_sector; /* Size of a sector in bytes. */
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u8 sectors_per_cluster; /* Size of a cluster in sectors. */
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u16 reserved_sectors; /* zero */
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u8 fats; /* zero */
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u16 root_entries; /* zero */
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u16 sectors; /* zero */
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u8 media_type; /* 0xf8 = hard disk */
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u16 sectors_per_fat; /* zero */
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u16 sectors_per_track; /* Required to boot Windows. */
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u16 heads; /* Required to boot Windows. */
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u32 hidden_sectors; /* Offset to the start of the partition */
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u32 large_sectors; /* zero */
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} __attribute__((__packed__)) BIOS_PARAMETER_BLOCK;
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/**
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* struct NTFS_BOOT_SECTOR - NTFS boot sector structure.
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*/
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typedef struct {
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u8 jump[3]; /* Irrelevant (jump to boot up code).*/
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u64 oem_id; /* Magic "NTFS ". */
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BIOS_PARAMETER_BLOCK bpb; /* See BIOS_PARAMETER_BLOCK. */
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u8 physical_drive; /* 0x00 floppy, 0x80 hard disk */
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u8 current_head; /* zero */
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u8 extended_boot_signature; /* 0x80 */
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u8 reserved2; /* zero */
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s64 number_of_sectors; /* Number of sectors in volume. */
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s64 mft_lcn; /* Cluster location of mft data. */
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s64 mftmirr_lcn; /* Cluster location of copy of mft. */
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s8 clusters_per_mft_record; /* Mft record size in clusters. */
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u8 reserved0[3]; /* zero */
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s8 clusters_per_index_record; /* Index block size in clusters. */
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u8 reserved1[3]; /* zero */
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u64 volume_serial_number; /* Irrelevant (serial number). */
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u32 checksum; /* Boot sector checksum. */
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u8 bootstrap[426]; /* Irrelevant (boot up code). */
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u16 end_of_sector_marker; /* End of bootsector magic. */
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} __attribute__((__packed__)) NTFS_BOOT_SECTOR;
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/**
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* EXTENDED_PARTITION - Block device extended boot record
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*/
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typedef struct _EXTENDED_BOOT_RECORD {
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u8 code_area[446]; /* Code area; normally empty */
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PARTITION_RECORD partition; /* Primary partition */
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PARTITION_RECORD next_ebr; /* Next extended boot record in the chain */
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u8 reserved[32]; /* Normally empty */
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u16 signature; /* EBR signature; 0xAA55 */
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} __attribute__((__packed__)) EXTENDED_BOOT_RECORD;
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//#define DEBUG_MOUNTALL
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#ifdef DEBUG_MOUNTALL
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#define debug_printf(fmt, args...) \
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fprintf(stderr, "%s:%d:" fmt, __FUNCTION__, __LINE__, ##args)
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#else
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#define debug_printf(fmt, args...)
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#endif
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DEVICE_STRUCT part[2][MAX_DEVICES];
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static void AddPartition(sec_t sector, int device, int type, int *devnum)
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{
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if (*devnum >= MAX_DEVICES)
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return;
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DISC_INTERFACE *disc = (DISC_INTERFACE *)sd;
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if (device == DEVICE_USB)
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{
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disc = (DISC_INTERFACE *)usb;
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}
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else if (device == DEVICE_DVD)
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{
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disc = (DISC_INTERFACE *)dvd;
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}
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char mount[10];
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sprintf(mount, "%s%i", prefix[device], *devnum+1);
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if(type == T_FAT)
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{
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if(!fatMount(mount, disc, sector, 8, 64))
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return;
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fatGetVolumeLabel(mount, part[device][*devnum].name);
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}
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else if (type == T_NTFS)
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{
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if(!ntfsMount(mount, disc, sector, 8, 64, NTFS_DEFAULT | NTFS_RECOVER))
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return;
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const char *name = ntfsGetVolumeName(mount);
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if(name)
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strcpy(part[device][*devnum].name, name);
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else
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part[device][*devnum].name[0] = 0;
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}
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else if (type == T_EXT2)
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{
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if(!ext2Mount(mount, disc, sector, 8, 64, EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK))
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return;
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const char *name = ext2GetVolumeName(mount);
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if(name)
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strcpy(part[device][*devnum].name, name);
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else
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part[device][*devnum].name[0] = 0;
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}
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else if (type == T_ISO9660)
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{
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if (!ISO9660_Mount(mount, disc))
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return;
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const char *name = ISO9660_GetVolumeLabel(mount);
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if(name)
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strcpy(part[device][*devnum].name, name);
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else
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strcpy(part[device][*devnum].name, "DVD");
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}
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strcpy(part[device][*devnum].mount, mount);
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part[device][*devnum].type = type;
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part[device][*devnum].interface = disc;
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part[device][*devnum].sector = sector;
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++*devnum;
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}
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static int FindPartitions(int device)
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{
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int i;
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int devnum = 0;
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// clear list
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for(i=0; i < MAX_DEVICES; i++)
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{
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part[device][i].name[0] = 0;
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part[device][i].mount[0] = 0;
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part[device][i].sector = 0;
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part[device][i].interface = NULL;
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part[device][i].type = 0;
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}
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DISC_INTERFACE *interface;
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if(device == DEVICE_SD)
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interface = (DISC_INTERFACE *)sd;
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else
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interface = (DISC_INTERFACE *)usb;
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MASTER_BOOT_RECORD mbr;
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PARTITION_RECORD *partition = NULL;
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devnum = 0;
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sec_t part_lba = 0;
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union
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{
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u8 buffer[BYTES_PER_SECTOR];
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MASTER_BOOT_RECORD mbr;
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EXTENDED_BOOT_RECORD ebr;
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NTFS_BOOT_SECTOR boot;
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} sector;
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// Read the first sector on the device
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if (!interface->readSectors(0, 1, §or.buffer))
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{
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errno = EIO;
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return -1;
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}
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// If this is the devices master boot record
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debug_printf("0x%x\n", sector.mbr.signature);
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if (sector.mbr.signature == MBR_SIGNATURE)
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{
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memcpy(&mbr, §or, sizeof(MASTER_BOOT_RECORD));
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debug_printf("Valid Master Boot Record found\n");
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// Search the partition table for all partitions (max. 4 primary partitions)
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for (i = 0; i < 4; i++)
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{
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partition = &mbr.partitions[i];
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part_lba = le32_to_cpu(mbr.partitions[i].lba_start);
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debug_printf(
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"Partition %i: %s, sector %u, type 0x%x\n",
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i + 1,
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partition->status == PARTITION_STATUS_BOOTABLE ? "bootable (active)"
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: "non-bootable", part_lba, partition->type);
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// Figure out what type of partition this is
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switch (partition->type)
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{
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// NTFS partition
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case PARTITION_TYPE_NTFS:
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{
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debug_printf("Partition %i: Claims to be NTFS\n", i + 1);
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// Read and validate the NTFS partition
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if (interface->readSectors(part_lba, 1, §or))
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{
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debug_printf("sector.boot.oem_id: 0x%x\n", sector.boot.oem_id);
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debug_printf("NTFS_OEM_ID: 0x%x\n", NTFS_OEM_ID);
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if (sector.boot.oem_id == NTFS_OEM_ID)
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{
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debug_printf("Partition %i: Valid NTFS boot sector found\n", i + 1);
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AddPartition(part_lba, device, T_NTFS, &devnum);
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}
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else
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{
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debug_printf("Partition %i: Invalid NTFS boot sector, not actually NTFS\n", i + 1);
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}
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}
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break;
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}
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// DOS 3.3+ or Windows 95 extended partition
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case PARTITION_TYPE_DOS33_EXTENDED:
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case PARTITION_TYPE_WIN95_EXTENDED:
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{
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debug_printf("Partition %i: Claims to be Extended\n", i + 1);
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// Walk the extended partition chain, finding all NTFS partitions within it
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sec_t ebr_lba = part_lba;
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sec_t next_erb_lba = 0;
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do
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{
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// Read and validate the extended boot record
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if (interface->readSectors(ebr_lba + next_erb_lba, 1, §or))
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{
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if (sector.ebr.signature == EBR_SIGNATURE)
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{
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debug_printf(
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"Logical Partition @ %d: %s type 0x%x\n",
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ebr_lba + next_erb_lba,
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sector.ebr.partition.status
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== PARTITION_STATUS_BOOTABLE ? "bootable (active)"
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: "non-bootable",
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sector.ebr.partition.type);
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// Get the start sector of the current partition
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// and the next extended boot record in the chain
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part_lba = ebr_lba + next_erb_lba
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+ le32_to_cpu(
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sector.ebr.partition.lba_start);
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next_erb_lba = le32_to_cpu(
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sector.ebr.next_ebr.lba_start);
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if(sector.ebr.partition.type==PARTITION_TYPE_LINUX)
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{
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debug_printf("Partition : type EXT2/3/4 found\n");
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AddPartition(part_lba, device, T_EXT2, &devnum);
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}
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// Check if this partition has a valid NTFS boot record
|
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else if (interface->readSectors(part_lba, 1, §or))
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{
|
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if (sector.boot.oem_id == NTFS_OEM_ID)
|
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{
|
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debug_printf(
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"Logical Partition @ %d: Valid NTFS boot sector found\n",
|
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part_lba);
|
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if (sector.ebr.partition.type
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!= PARTITION_TYPE_NTFS)
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{
|
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debug_printf(
|
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"Logical Partition @ %d: Is NTFS but type is 0x%x; 0x%x was expected\n",
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part_lba,
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sector.ebr.partition.type,
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PARTITION_TYPE_NTFS);
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}
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AddPartition(part_lba, device, T_NTFS, &devnum);
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}
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else if (!memcmp(sector.buffer
|
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+ BPB_FAT16_fileSysType, FAT_SIG,
|
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sizeof(FAT_SIG)) || !memcmp(
|
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sector.buffer
|
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+ BPB_FAT32_fileSysType,
|
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FAT_SIG, sizeof(FAT_SIG)))
|
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{
|
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debug_printf("Partition : Valid FAT boot sector found\n");
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AddPartition(part_lba, device, T_FAT, &devnum);
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}
|
||
}
|
||
}
|
||
else
|
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{
|
||
next_erb_lba = 0;
|
||
}
|
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}
|
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} while (next_erb_lba);
|
||
break;
|
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}
|
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|
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case PARTITION_TYPE_LINUX:
|
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{
|
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debug_printf("Partition %i: Claims to be LINUX\n", i + 1);
|
||
|
||
// Read and validate the EXT2 partition
|
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AddPartition(part_lba, device, T_EXT2, &devnum);
|
||
break;
|
||
}
|
||
|
||
// Ignore empty partitions
|
||
case PARTITION_TYPE_EMPTY:
|
||
debug_printf("Partition %i: Claims to be empty\n", i + 1);
|
||
// Unknown or unsupported partition type
|
||
default:
|
||
{
|
||
// Check if this partition has a valid NTFS boot record anyway,
|
||
// it might be misrepresented due to a lazy partition editor
|
||
if (interface->readSectors(part_lba, 1, §or))
|
||
{
|
||
if (sector.boot.oem_id == NTFS_OEM_ID)
|
||
{
|
||
debug_printf("Partition %i: Valid NTFS boot sector found\n",i + 1);
|
||
if (partition->type != PARTITION_TYPE_NTFS)
|
||
{
|
||
debug_printf(
|
||
"Partition %i: Is NTFS but type is 0x%x; 0x%x was expected\n",
|
||
i + 1, partition->type,
|
||
PARTITION_TYPE_NTFS);
|
||
}
|
||
AddPartition(part_lba, device, T_NTFS, &devnum);
|
||
}
|
||
else if (!memcmp(sector.buffer + BPB_FAT16_fileSysType,
|
||
FAT_SIG, sizeof(FAT_SIG)) || !memcmp(
|
||
sector.buffer + BPB_FAT32_fileSysType, FAT_SIG,
|
||
sizeof(FAT_SIG)))
|
||
{
|
||
debug_printf("Partition : Valid FAT boot sector found\n");
|
||
AddPartition(part_lba, device, T_FAT, &devnum);
|
||
}
|
||
else
|
||
{
|
||
debug_printf("Trying : EXT partition\n");
|
||
AddPartition(part_lba, device, T_EXT2, &devnum);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if(devnum==0) // it is assumed this device has no master boot record or no partitions found
|
||
{
|
||
debug_printf("No Master Boot Record was found or no partitions found!\n");
|
||
|
||
// As a last-ditched effort, search the first 64 sectors of the device for stray NTFS/FAT partitions
|
||
for (i = 0; i < 64; i++)
|
||
{
|
||
if (interface->readSectors(i, 1, §or))
|
||
{
|
||
if (sector.boot.oem_id == NTFS_OEM_ID)
|
||
{
|
||
debug_printf("Valid NTFS boot sector found at sector %d!\n", i);
|
||
AddPartition(i, device, T_NTFS, &devnum);
|
||
break;
|
||
}
|
||
else if (!memcmp(sector.buffer + BPB_FAT16_fileSysType, FAT_SIG,
|
||
sizeof(FAT_SIG)) || !memcmp(sector.buffer
|
||
+ BPB_FAT32_fileSysType, FAT_SIG, sizeof(FAT_SIG)))
|
||
{
|
||
debug_printf("Partition : Valid FAT boot sector found\n");
|
||
AddPartition(i, device, T_FAT, &devnum);
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
debug_printf("Trying : EXT partition\n");
|
||
AddPartition(part_lba, device, T_EXT2, &devnum);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return devnum;
|
||
}
|
||
|
||
static void UnmountPartitions(int device)
|
||
{
|
||
char mount[11];
|
||
int i;
|
||
|
||
for(i=0; i < MAX_DEVICES; i++)
|
||
{
|
||
if(part[device][i].type == T_FAT)
|
||
{
|
||
sprintf(mount, "VFAT: %s:", part[device][i].mount);
|
||
fatUnmount(mount);
|
||
break;
|
||
}
|
||
else if(part[device][i].type == T_NTFS)
|
||
{
|
||
sprintf(mount, "NTFS: %s:", part[device][i].mount);
|
||
ntfsUnmount(part[device][i].mount, false);
|
||
break;
|
||
}
|
||
else if(part[device][i].type == T_EXT2)
|
||
{
|
||
sprintf(mount, "EXT2: %s:", part[device][i].mount);
|
||
ext2Unmount(part[device][i].mount);
|
||
break;
|
||
}
|
||
else if(part[device][i].type == T_ISO9660)
|
||
{
|
||
sprintf(mount, "ISO9660: %s:", part[device][i].mount);
|
||
ISO9660_Unmount(part[device][i].mount);
|
||
break;
|
||
}
|
||
|
||
part[device][i].name[0] = 0;
|
||
part[device][i].mount[0] = 0;
|
||
part[device][i].sector = 0;
|
||
part[device][i].interface = NULL;
|
||
part[device][i].type = 0;
|
||
}
|
||
|
||
}
|
||
|
||
/****************************************************************************
|
||
* MountPartitions
|
||
*
|
||
* Shuts down the device
|
||
* Attempts to startup the device specified and mounts all partitions
|
||
***************************************************************************/
|
||
|
||
static bool MountPartitions(int device)
|
||
{
|
||
|
||
const DISC_INTERFACE* disc = NULL;
|
||
|
||
switch(device)
|
||
{
|
||
case DEVICE_SD:
|
||
disc = sd;
|
||
break;
|
||
case DEVICE_USB:
|
||
disc = usb;
|
||
break;
|
||
case DEVICE_DVD:
|
||
disc = dvd;
|
||
break;
|
||
default:
|
||
return false; // unknown device
|
||
}
|
||
|
||
if(FindPartitions(device) > 0)
|
||
return true;
|
||
|
||
return false;
|
||
}
|
||
|
||
void MountAllDevices()
|
||
{
|
||
if(sd->startup() && sd->isInserted())
|
||
MountPartitions(DEVICE_SD);
|
||
|
||
usleep(250000); // 1/4 sec
|
||
|
||
if(usb->startup() && usb->isInserted())
|
||
MountPartitions(DEVICE_USB);
|
||
|
||
usleep(250000); // 1/4 sec
|
||
|
||
if(dvd->startup() && dvd->isInserted())
|
||
MountPartitions(DEVICE_DVD);
|
||
}
|
||
|
||
void UnmountAllDevices()
|
||
{
|
||
UnmountPartitions(DEVICE_SD);
|
||
UnmountPartitions(DEVICE_USB);
|
||
UnmountPartitions(DEVICE_DVD);
|
||
}
|
||
|
||
bool SDCard_Inserted()
|
||
{
|
||
return sd->isInserted();
|
||
}
|
||
|
||
void check_sd()
|
||
{
|
||
if(Settings.sd_insert <= 0)
|
||
{
|
||
|
||
if(sd->startup() && sd->isInserted()) // wenn sd karte gefunden, neu einlesen
|
||
{
|
||
MountPartitions(DEVICE_SD);
|
||
Settings.sd_insert = 2;
|
||
}
|
||
}
|
||
else if(Settings.sd_insert == 1)
|
||
{
|
||
if(!SDCard_Inserted()) // wenn sd karte nicht gefunden, beenden
|
||
{
|
||
UnmountPartitions(DEVICE_SD);
|
||
Settings.sd_insert = -1;
|
||
}
|
||
}
|
||
}
|
||
|
||
bool USBDevice_Inserted()
|
||
{
|
||
return usb->isInserted();
|
||
}
|
||
|
||
void check_usb()
|
||
{
|
||
if(Settings.usb_insert <= 0)
|
||
{
|
||
if(usb->startup() && usb->isInserted()) // wenn usb ger<65>t gefunden, neu einlesen
|
||
{
|
||
MountPartitions(DEVICE_USB);
|
||
Settings.usb_insert = 2;
|
||
}
|
||
}
|
||
else if(Settings.usb_insert == 1)
|
||
{
|
||
if(!USBDevice_Inserted()) // wenn usb ger<65>t nicht mehr gefunden, beenden
|
||
{
|
||
UnmountPartitions(DEVICE_USB);
|
||
Settings.usb_insert = -1;
|
||
}
|
||
}
|
||
}
|
||
|
||
bool DVD_Inserted()
|
||
{
|
||
return dvd->isInserted();
|
||
}
|
||
|
||
void check_dvd()
|
||
{
|
||
if(Settings.dvd_insert <= 0)
|
||
{
|
||
|
||
if(dvd->startup() && dvd->isInserted()) // wenn dvd gefunden, neu einlesen
|
||
{
|
||
MountPartitions(DEVICE_DVD);
|
||
Settings.dvd_insert = 2;
|
||
}
|
||
}
|
||
else if(Settings.dvd_insert == 1)
|
||
{
|
||
if(!DVD_Inserted()) // wenn dvd nicht gefunden, beenden
|
||
{
|
||
UnmountPartitions(DEVICE_DVD);
|
||
Settings.dvd_insert = -1;
|
||
}
|
||
}
|
||
}
|
||
|
||
void check_device()
|
||
{
|
||
ResumeThrobberThread();
|
||
|
||
app_list();
|
||
|
||
if(Settings.current_category != 0)
|
||
copy_app_in_category();
|
||
else
|
||
copy_app_in_unassigned();
|
||
|
||
if(Settings.sd_insert == 2)
|
||
Settings.sd_insert = 1;
|
||
else if(Settings.sd_insert == -1)
|
||
Settings.sd_insert = 0;
|
||
|
||
if(Settings.usb_insert == 2)
|
||
Settings.usb_insert = 1;
|
||
else if(Settings.usb_insert == -1)
|
||
Settings.usb_insert = 0;
|
||
|
||
if(Settings.dvd_insert == 2)
|
||
Settings.dvd_insert = 1;
|
||
else if(Settings.dvd_insert == -1)
|
||
Settings.dvd_insert = 0;
|
||
|
||
HaltThrobberThread();
|
||
}
|
||
|
||
string check_path(string old_path)
|
||
{
|
||
DIR *dirHandle;
|
||
struct dirent * dirEntry;
|
||
|
||
if(old_path.length() > 0 && old_path.substr(old_path.length() -1) != "/")
|
||
old_path += "/";
|
||
|
||
string new_path = old_path.substr(0, old_path.find(":/") +2);
|
||
old_path.erase(0, old_path.find("/") +1);
|
||
string search;
|
||
|
||
while((signed)old_path.find("/") != -1)
|
||
{
|
||
search = old_path.substr(0, old_path.find("/"));
|
||
dirHandle = opendir(new_path.c_str());
|
||
if (dirHandle)
|
||
{
|
||
while (0 != (dirEntry = readdir(dirHandle)))
|
||
{
|
||
if(strcasecmp(dirEntry->d_name, search.c_str()) == 0)
|
||
{
|
||
search = dirEntry->d_name;
|
||
break;
|
||
}
|
||
}
|
||
new_path += search;
|
||
new_path += "/";
|
||
closedir(dirHandle);
|
||
}
|
||
|
||
old_path.erase(0, old_path.find("/") +1);
|
||
}
|
||
|
||
return new_path;
|
||
}
|