usbloadergx/source/usbloader/wbfs_fat.c

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#include <stdio.h>
#include <unistd.h>
#include <malloc.h>
#include <ogcsys.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/statvfs.h>
#include <ctype.h>
#include "libwbfs/libwbfs.h"
#include "sdhc.h"
#include "usbstorage.h"
#include "utils.h"
#include "video.h"
#include "wbfs.h"
#include "wdvd.h"
#include "splits.h"
#include "fat.h"
#include "partition_usbloader.h"
#include "wpad.h"
#include "wbfs_fat.h"
#include "disc.h"
#include "settings/cfg.h"
// WBFS FAT by oggzee
#define D_S(A) A, sizeof(A)
char wbfs_fat_drive[16];
char wbfs_fat_dir[16] = "/wbfs";
int wbfs_fat_vfs_have = 0;
int wbfs_fat_vfs_lba = 0;
struct statvfs wbfs_fat_vfs;
split_info_t split;
static u32 fat_sector_size = 512;
void WBFS_Spinner(s32 x, s32 max);
s32 __WBFS_ReadDVD(void *fp, u32 lba, u32 len, void *iobuf);
s32 _WBFS_FAT_GetHeadersCount(void *outbuf, u32 *count, u32 len)
{
DIR *dir;
struct dirent *dent;
char *p;
int ret, cnt = 0;
char path[100];
wbfs_t *part = NULL;
u32 size;
u8 *ptr;
struct discHdr tmpHdr;
int hdrsize;
struct stat st;
//dbg_time1();
strcpy(path, wbfs_fat_drive);
strcat(path, wbfs_fat_dir);
dir = opendir(path);
if (!dir) {
*count = 0;
return 0;
}
while ((dent = readdir(dir)) != NULL) {
if (outbuf && cnt >= *count) break;
if ((char)dent->d_name[0] == '.') continue;
p = strrchr(dent->d_name, '.');
if (!p) continue;
if (strcasecmp(p, ".wbfs") != 0) continue;
if (strlen(dent->d_name) != 11) continue; // GAMEID.wbfs
u8 id[8];
memcpy(id, dent->d_name, 6);
id[6] = 0;
strcpy(path, wbfs_fat_drive);
strcat(path, wbfs_fat_dir);
strcat(path, "/");
strcat(path, dent->d_name);
stat(path, &st);
// size must be at least 1MB to be considered a valid wbfs file
if (st.st_size < 1024*1024) continue;
if (!outbuf) {
// just counting
cnt++;
continue;
}
ptr = ((u8 *)outbuf) + (cnt * len);
hdrsize = len;
char *title = cfg_get_title(id);
if (title) {
memset(&tmpHdr, 0, sizeof(tmpHdr));
memcpy(tmpHdr.id, id, 6);
strncpy(tmpHdr.title, title, sizeof(tmpHdr.title));
tmpHdr.magic = 0x5D1C9EA3;
memcpy(ptr, &tmpHdr, hdrsize);
cnt++;
continue;
}
// no title found, read it from wbfs file directly
FILE *fp = fopen(path, "rb");
if (fp != NULL) {
fseek(fp, 512, SEEK_SET);
fread(&tmpHdr, sizeof(struct discHdr), 1, fp);
fclose(fp);
if (tmpHdr.magic == 0x5D1C9EA3 && (memcmp(tmpHdr.id, id, 6) == 0)) {
memcpy(ptr, &tmpHdr, hdrsize);
cnt++;
continue;
}
}
// no title found, read it from wbfs file
// but this is a little bit slower
// open 'partition' file
part = WBFS_FAT_OpenPart(id);
if (!part) {
continue;
}
/* Get header */
ret = wbfs_get_disc_info(part, 0, ptr, hdrsize, &size);
if (ret == 0) cnt++;
WBFS_FAT_ClosePart(part);
}
*count = cnt;
closedir(dir);
//dbg_time2("\nFAT HDRS");
//Wpad_WaitButtons();
return 0;
}
s32 WBFS_FAT_GetCount(u32 *count)
{
*count = 0;
_WBFS_FAT_GetHeadersCount(NULL, count, 0);
return 0;
}
s32 WBFS_FAT_GetHeaders(void *outbuf, u32 cnt, u32 len)
{
_WBFS_FAT_GetHeadersCount(outbuf, &cnt, len);
return 0;
}
wbfs_disc_t* WBFS_FAT_OpenDisc(u8 *discid)
{
wbfs_t *part = WBFS_FAT_OpenPart(discid);
if (!part) return NULL;
return wbfs_open_disc(part, discid);
}
void WBFS_FAT_CloseDisc(wbfs_disc_t* disc)
{
if (!disc) return;
wbfs_t *part = disc->p;
wbfs_close_disc(disc);
WBFS_FAT_ClosePart(part);
return;
}
s32 WBFS_FAT_DiskSpace(f32 *used, f32 *free)
{
f32 size;
int ret;
*used = 0;
*free = 0;
// statvfs is slow, so cache values
if (!wbfs_fat_vfs_have || wbfs_fat_vfs_lba != wbfs_part_lba) {
ret = statvfs(wbfs_fat_drive, &wbfs_fat_vfs);
if (ret) return 0;
wbfs_fat_vfs_have = 1;
wbfs_fat_vfs_lba = wbfs_part_lba;
}
/* FS size in GB */
size = (f32)wbfs_fat_vfs.f_frsize * (f32)wbfs_fat_vfs.f_blocks / GB_SIZE;
*free = (f32)wbfs_fat_vfs.f_frsize * (f32)wbfs_fat_vfs.f_bfree / GB_SIZE;
*used = size - *free;
return 0;
}
static int nop_read_sector(void *_fp,u32 lba,u32 count,void*buf)
{
return 0;
}
static int nop_write_sector(void *_fp,u32 lba,u32 count,void*buf)
{
return 0;
}
void WBFS_FAT_fname(u8 *id, char *fname, int len)
{
snprintf(fname, len, "%s%s/%.6s.wbfs", wbfs_fat_drive, wbfs_fat_dir, id);
}
wbfs_t* WBFS_FAT_OpenPart(u8 *id)
{
char fname[100];
wbfs_t *part = NULL;
int ret;
// wbfs 'partition' file
WBFS_FAT_fname(id, fname, sizeof(fname));
ret = split_open(&split, fname);
if (ret) return NULL;
part = wbfs_open_partition(
split_read_sector,
nop_write_sector, //readonly //split_write_sector,
&split, fat_sector_size, split.total_sec, 0, 0);
if (!part) {
split_close(&split);
}
return part;
}
wbfs_t* WBFS_FAT_CreatePart(u8 *id)
{
char fname[100];
wbfs_t *part = NULL;
u64 size = (u64)143432*2*0x8000ULL;
u32 n_sector = size / 512;
int ret;
snprintf(D_S(fname), "%s%s", wbfs_fat_drive, wbfs_fat_dir);
mkdir(fname, 0777);
WBFS_FAT_fname(id, fname, sizeof(fname));
ret = split_create(&split, fname, OPT_split_size, size, true);
if (ret) return NULL;
// force create first file
u32 scnt = 0;
int fd = split_get_file(&split, 0, &scnt, 0);
if (fd<0) {
split_close(&split);
return NULL;
}
part = wbfs_open_partition(
split_read_sector,
split_write_sector,
&split, fat_sector_size, n_sector, 0, 1);
if (!part) {
split_close(&split);
}
return part;
}
void WBFS_FAT_ClosePart(wbfs_t* part)
{
if (!part) return;
split_info_t *s = (split_info_t*)part->callback_data;
wbfs_close(part);
if (s) split_close(s);
}
s32 WBFS_FAT_RemoveGame(u8 *discid)
{
char fname[100];
// wbfs 'partition' file
WBFS_FAT_fname(discid, fname, sizeof(fname));
split_create(&split, fname, 0, 0, true);
split_close(&split);
// Reset FAT stats
wbfs_fat_vfs_have = 0;
return 0;
}
s32 WBFS_FAT_AddGame(void)
{
static struct discHdr header ATTRIBUTE_ALIGN(32);
s32 ret;
wbfs_t *part = NULL;
//write_test(); return -1;
// read ID from DVD
Disc_ReadHeader(&header);
// create wbfs 'partition' file
part = WBFS_FAT_CreatePart(header.id);
if (!part) return -1;
/* Add game to device */
extern wbfs_t *hdd;
wbfs_t *old_hdd = hdd;
hdd = part; // used by spinner
ret = wbfs_add_disc(part, __WBFS_ReadDVD, NULL, WBFS_Spinner, ONLY_GAME_PARTITION, 0);
hdd = old_hdd;
wbfs_trim(part);
WBFS_FAT_ClosePart(part);
// Reset FAT stats
wbfs_fat_vfs_have = 0;
if (ret < 0) return ret;
return 0;
}
s32 WBFS_FAT_DVD_Size(u64 *comp_size, u64 *real_size)
{
s32 ret;
u32 comp_sec = 0, last_sec = 0;
wbfs_t *part = NULL;
u64 size = (u64)143432*2*0x8000ULL;
u32 n_sector = size / fat_sector_size;
u32 wii_sec_sz;
// init a temporary dummy part
// as a placeholder for wbfs_size_disc
part = wbfs_open_partition(
nop_read_sector, nop_write_sector,
NULL, fat_sector_size, n_sector, 0, 1);
if (!part) return -1;
wii_sec_sz = part->wii_sec_sz;
/* Add game to device */
ret = wbfs_size_disc(part, __WBFS_ReadDVD, NULL, ONLY_GAME_PARTITION, &comp_sec, &last_sec);
wbfs_close(part);
if (ret < 0)
return ret;
if (comp_size != NULL) *comp_size = (u64)wii_sec_sz * comp_sec;
if (real_size != NULL) *real_size = (u64)wii_sec_sz * last_sec;
return 0;
}