usbloadergx/source/libwbfs/libwbfs.c

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// Copyright 2009 Kwiirk
// Licensed under the terms of the GNU GPL, version 2
// http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
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// Modified by oggzee
#include "libwbfs.h"
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#define ERROR(x) do {wbfs_error(x);goto error;}while(0)
#define ALIGN_LBA(x) (((x)+p->hd_sec_sz-1)&(~(p->hd_sec_sz-1)))
wbfs_t wbfs_iso_file;
static int force_mode = 0;
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void wbfs_set_force_mode( int force )
{
force_mode = force;
}
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static u8 size_to_shift( u32 size )
{
u8 ret = 0;
while ( size )
{
ret++;
size >>= 1;
}
return ret - 1;
}
#define read_le32_unaligned(x) ((x)[0]|((x)[1]<<8)|((x)[2]<<16)|((x)[3]<<24))
wbfs_t*wbfs_open_hd( rw_sector_callback_t read_hdsector,
rw_sector_callback_t write_hdsector,
void *callback_data,
int hd_sector_size, int num_hd_sector __attribute( ( unused ) ), int reset )
{
int i = num_hd_sector, ret;
u8 *ptr, *tmp_buffer = wbfs_ioalloc( hd_sector_size );
u8 part_table[16*4];
ret = read_hdsector( callback_data, 0, 1, tmp_buffer );
if ( ret )
return 0;
//find wbfs partition
wbfs_memcpy( part_table, tmp_buffer + 0x1be, 16*4 );
ptr = part_table;
for ( i = 0; i < 4; i++, ptr += 16 )
{
u32 part_lba = read_le32_unaligned( ptr + 0x8 );
wbfs_head_t *head = ( wbfs_head_t * )tmp_buffer;
ret = read_hdsector( callback_data, part_lba, 1, tmp_buffer );
// verify there is the magic.
if ( head->magic == wbfs_htonl( WBFS_MAGIC ) )
{
wbfs_t*p = wbfs_open_partition( read_hdsector, write_hdsector,
callback_data, hd_sector_size, 0, part_lba, reset );
wbfs_iofree( tmp_buffer );
return p;
}
}
wbfs_iofree( tmp_buffer );
if ( reset )// XXX make a empty hd partition..
{
}
return 0;
}
wbfs_t*wbfs_open_partition( rw_sector_callback_t read_hdsector,
rw_sector_callback_t write_hdsector,
void *callback_data,
int hd_sector_size, int num_hd_sector, u32 part_lba, int reset )
{
wbfs_t *p = wbfs_malloc( sizeof( wbfs_t ) );
wbfs_head_t *head = wbfs_ioalloc( hd_sector_size ? hd_sector_size : 512 );
//constants, but put here for consistancy
p->wii_sec_sz = 0x8000;
p->wii_sec_sz_s = size_to_shift( 0x8000 );
p->n_wii_sec = ( num_hd_sector / 0x8000 ) * hd_sector_size;
p->n_wii_sec_per_disc = 143432 * 2;//support for double layers discs..
p->head = head;
p->part_lba = part_lba;
// init the partition
if ( reset )
{
u8 sz_s;
wbfs_memset( head, 0, hd_sector_size );
head->magic = wbfs_htonl( WBFS_MAGIC );
head->hd_sec_sz_s = size_to_shift( hd_sector_size );
head->n_hd_sec = wbfs_htonl( num_hd_sector );
// choose minimum wblk_sz that fits this partition size
for ( sz_s = 6; sz_s < 11; sz_s++ )
{
// ensure that wbfs_sec_sz is big enough to address every blocks using 16 bits
if ( p->n_wii_sec < ( ( 1U << 16 )*( 1 << sz_s ) ) )
break;
}
head->wbfs_sec_sz_s = sz_s + p->wii_sec_sz_s;
}
else
read_hdsector( callback_data, p->part_lba, 1, head );
if ( head->magic != wbfs_htonl( WBFS_MAGIC ) )
ERROR( "bad magic" );
if ( !force_mode && hd_sector_size && head->hd_sec_sz_s != size_to_shift( hd_sector_size ) )
ERROR( "hd sector size doesn't match" );
if ( !force_mode && num_hd_sector && head->n_hd_sec != wbfs_htonl( num_hd_sector ) )
ERROR( "hd num sector doesn't match" );
p->hd_sec_sz = 1 << head->hd_sec_sz_s;
p->hd_sec_sz_s = head->hd_sec_sz_s;
p->n_hd_sec = wbfs_ntohl( head->n_hd_sec );
p->n_wii_sec = ( p->n_hd_sec / p->wii_sec_sz ) * ( p->hd_sec_sz );
p->wbfs_sec_sz_s = head->wbfs_sec_sz_s;
p->wbfs_sec_sz = 1 << p->wbfs_sec_sz_s;
p->n_wbfs_sec = p->n_wii_sec >> ( p->wbfs_sec_sz_s - p->wii_sec_sz_s );
p->n_wbfs_sec_per_disc = p->n_wii_sec_per_disc >> ( p->wbfs_sec_sz_s - p->wii_sec_sz_s );
p->disc_info_sz = ALIGN_LBA( sizeof( wbfs_disc_info_t ) + p->n_wbfs_sec_per_disc * 2 );
//printf("hd_sector_size %X wii_sector size %X wbfs sector_size %X\n",p->hd_sec_sz,p->wii_sec_sz,p->wbfs_sec_sz);
p->read_hdsector = read_hdsector;
p->write_hdsector = write_hdsector;
p->callback_data = callback_data;
p->freeblks_lba = ( p->wbfs_sec_sz - p->n_wbfs_sec / 8 ) >> p->hd_sec_sz_s;
if ( !reset )
p->freeblks = 0; // will alloc and read only if needed
else
{
// init with all free blocks
p->freeblks = wbfs_ioalloc( ALIGN_LBA( p->n_wbfs_sec / 8 ) );
wbfs_memset( p->freeblks, 0xff, p->n_wbfs_sec / 8 );
}
p->max_disc = ( p->freeblks_lba - 1 ) / ( p->disc_info_sz >> p->hd_sec_sz_s );
if ( p->max_disc > p->hd_sec_sz - sizeof( wbfs_head_t ) )
p->max_disc = p->hd_sec_sz - sizeof( wbfs_head_t );
p->tmp_buffer = wbfs_ioalloc( p->hd_sec_sz );
p->n_disc_open = 0;
return p;
error:
wbfs_free( p );
wbfs_iofree( head );
return 0;
}
void wbfs_sync( wbfs_t*p )
{
// copy back descriptors
if ( p->write_hdsector )
{
p->write_hdsector( p->callback_data, p->part_lba + 0, 1, p->head );
if ( p->freeblks )
p->write_hdsector( p->callback_data, p->part_lba + p->freeblks_lba, ALIGN_LBA( p->n_wbfs_sec / 8 ) >> p->hd_sec_sz_s, p->freeblks );
}
}
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void wbfs_close( wbfs_t*p )
{
wbfs_sync( p );
if ( p->n_disc_open )
ERROR( "trying to close wbfs while discs still open" );
wbfs_iofree( p->head );
wbfs_iofree( p->tmp_buffer );
if ( p->freeblks )
wbfs_iofree( p->freeblks );
wbfs_free( p );
error:
return;
}
wbfs_disc_t *wbfs_open_disc( wbfs_t* p, u8 *discid )
{
u32 i;
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
wbfs_disc_t *d = 0;
for ( i = 0; i < p->max_disc; i++ )
{
if ( p->head->disc_table[i] )
{
p->read_hdsector( p->callback_data,
p->part_lba + 1 + i*disc_info_sz_lba, 1, p->tmp_buffer );
if ( wbfs_memcmp( discid, p->tmp_buffer, 6 ) == 0 )
{
d = wbfs_malloc( sizeof( *d ) );
if ( !d )
ERROR( "allocating memory" );
d->p = p;
d->i = i;
d->header = wbfs_ioalloc( p->disc_info_sz );
if ( !d->header )
ERROR( "allocating memory" );
p->read_hdsector( p->callback_data,
p->part_lba + 1 + i*disc_info_sz_lba,
disc_info_sz_lba, d->header );
p->n_disc_open ++;
// for(i=0;i<p->n_wbfs_sec_per_disc;i++)
// printf("%d,",wbfs_ntohs(d->header->wlba_table[i]));
return d;
}
}
}
return 0;
error:
if ( d )
wbfs_iofree( d );
return 0;
}
void wbfs_close_disc( wbfs_disc_t*d )
{
d->p->n_disc_open --;
wbfs_iofree( d->header );
wbfs_free( d );
}
// offset is pointing 32bit words to address the whole dvd, although len is in bytes
int wbfs_disc_read( wbfs_disc_t*d, u32 offset, u32 len, u8 *data )
{
if ( d->p == &wbfs_iso_file )
{
return wbfs_iso_file_read( d, offset, data, len );
}
wbfs_t *p = d->p;
u16 wlba = offset >> ( p->wbfs_sec_sz_s - 2 );
u32 iwlba_shift = p->wbfs_sec_sz_s - p->hd_sec_sz_s;
u32 lba_mask = ( p->wbfs_sec_sz - 1 ) >> ( p->hd_sec_sz_s );
u32 lba = ( offset >> ( p->hd_sec_sz_s - 2 ) ) & lba_mask;
u32 off = offset & ( ( p->hd_sec_sz >> 2 ) - 1 );
u16 iwlba = wbfs_ntohs( d->header->wlba_table[wlba] );
u32 len_copied;
int err = 0;
u8 *ptr = data;
if ( unlikely( iwlba == 0 ) )
return 1;
if ( unlikely( off ) )
{
off *= 4;
err = p->read_hdsector( p->callback_data,
p->part_lba + ( iwlba << iwlba_shift ) + lba, 1, p->tmp_buffer );
if ( err )
return err;
len_copied = p->hd_sec_sz - off;
if ( likely( len < len_copied ) )
len_copied = len;
wbfs_memcpy( ptr, p->tmp_buffer + off, len_copied );
len -= len_copied;
ptr += len_copied;
lba++;
if ( unlikely( lba > lba_mask && len ) )
{
lba = 0;
iwlba = wbfs_ntohs( d->header->wlba_table[++wlba] );
if ( unlikely( iwlba == 0 ) )
return 1;
}
}
while ( likely( len >= p->hd_sec_sz ) )
{
u32 nlb = len >> ( p->hd_sec_sz_s );
if ( unlikely( lba + nlb > p->wbfs_sec_sz ) ) // dont cross wbfs sectors..
nlb = p->wbfs_sec_sz - lba;
err = p->read_hdsector( p->callback_data,
p->part_lba + ( iwlba << iwlba_shift ) + lba, nlb, ptr );
if ( err )
return err;
len -= nlb << p->hd_sec_sz_s;
ptr += nlb << p->hd_sec_sz_s;
lba += nlb;
if ( unlikely( lba > lba_mask && len ) )
{
lba = 0;
iwlba = wbfs_ntohs( d->header->wlba_table[++wlba] );
if ( unlikely( iwlba == 0 ) )
return 1;
}
}
if ( unlikely( len ) )
{
err = p->read_hdsector( p->callback_data,
p->part_lba + ( iwlba << iwlba_shift ) + lba, 1, p->tmp_buffer );
if ( err )
return err;
wbfs_memcpy( ptr, p->tmp_buffer, len );
}
return 0;
}
// disc listing
u32 wbfs_count_discs( wbfs_t*p )
{
u32 i, count = 0;
for ( i = 0; i < p->max_disc; i++ )
if ( p->head->disc_table[i] )
count++;
return count;
}
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u32 wbfs_sector_used( wbfs_t *p, wbfs_disc_info_t *di )
{
u32 tot_blk = 0, j;
for ( j = 0; j < p->n_wbfs_sec_per_disc; j++ )
if ( wbfs_ntohs( di->wlba_table[j] ) )
tot_blk++;
return tot_blk;
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}
u32 wbfs_sector_used2( wbfs_t *p, wbfs_disc_info_t *di, u32 *last_blk )
{
u32 tot_blk = 0, j;
for ( j = 0; j < p->n_wbfs_sec_per_disc; j++ )
if ( wbfs_ntohs( di->wlba_table[j] ) )
{
if ( last_blk ) *last_blk = j;
tot_blk++;
}
return tot_blk;
}
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u32 wbfs_get_disc_info( wbfs_t*p, u32 index, u8 *header, int header_size, u32 *size )//size in 32 bit
{
u32 i, count = 0;
if ( !p ) return 1;
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
for ( i = 0; i < p->max_disc; i++ )
if ( p->head->disc_table[i] )
{
if ( count++ == index )
{
p->read_hdsector( p->callback_data,
p->part_lba + 1 + i*disc_info_sz_lba, 1, p->tmp_buffer );
if ( header_size > ( int )p->hd_sec_sz )
header_size = p->hd_sec_sz;
u32 magic = wbfs_ntohl( *( u32* )( p->tmp_buffer + 24 ) );
if ( magic != 0x5D1C9EA3 )
{
p->head->disc_table[i] = 0;
return 1;
}
memcpy( header, p->tmp_buffer, header_size );
if ( size )
{
u8 *header = wbfs_ioalloc( p->disc_info_sz );
p->read_hdsector( p->callback_data,
p->part_lba + 1 + i*disc_info_sz_lba, disc_info_sz_lba, header );
u32 sec_used = wbfs_sector_used( p, ( wbfs_disc_info_t * )header );
wbfs_iofree( header );
*size = sec_used << ( p->wbfs_sec_sz_s - 2 );
}
return 0;
}
}
return 1;
}
static void load_freeblocks( wbfs_t*p )
{
if ( p->freeblks )
return;
// XXX should handle malloc error..
p->freeblks = wbfs_ioalloc( ALIGN_LBA( p->n_wbfs_sec / 8 ) );
p->read_hdsector( p->callback_data, p->part_lba + p->freeblks_lba, ALIGN_LBA( p->n_wbfs_sec / 8 ) >> p->hd_sec_sz_s, p->freeblks );
}
u32 wbfs_count_usedblocks( wbfs_t*p )
{
u32 i, j, count = 0;
load_freeblocks( p );
for ( i = 0; i < p->n_wbfs_sec / ( 8*4 ); i++ )
{
u32 v = wbfs_ntohl( p->freeblks[i] );
if ( v == ~0U )
count += 32;
else if ( v != 0 )
for ( j = 0; j < 32; j++ )
if ( v & ( 1 << j ) )
count++;
}
return count;
}
// write access
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//static
int block_used( u8 *used, u32 i, u32 wblk_sz )
{
u32 k;
i *= wblk_sz;
for ( k = 0; k < wblk_sz; k++ )
if ( i + k < 143432*2 && used[i+k] )
return 1;
return 0;
}
static u32 alloc_block( wbfs_t*p )
{
u32 i, j;
for ( i = 0; i < p->n_wbfs_sec / ( 8*4 ); i++ )
{
u32 v = wbfs_ntohl( p->freeblks[i] );
if ( v != 0 )
{
for ( j = 0; j < 32; j++ )
if ( v & ( 1 << j ) )
{
p->freeblks[i] = wbfs_htonl( v & ~( 1 << j ) );
return ( i*32 ) + j + 1;
}
}
}
return ~0;
}
static void free_block( wbfs_t *p, int bl )
{
int i = ( bl - 1 ) / ( 32 );
int j = ( bl - 1 ) & 31;
u32 v = wbfs_ntohl( p->freeblks[i] );
p->freeblks[i] = wbfs_htonl( v | 1 << j );
}
u32 wbfs_add_disc( wbfs_t*p, read_wiidisc_callback_t read_src_wii_disc,
void *callback_data, progress_callback_t spinner, partition_selector_t sel, int copy_1_1 )
{
int i, discn;
u32 tot, cur;
u32 wii_sec_per_wbfs_sect = 1 << ( p->wbfs_sec_sz_s - p->wii_sec_sz_s );
wiidisc_t *d = 0;
u8 *used = 0;
wbfs_disc_info_t *info = 0;
u8* copy_buffer = 0;
int retval = -1;
int num_wbfs_sect_to_copy;
u32 last_used;
used = wbfs_malloc( p->n_wii_sec_per_disc );
if ( !used )
ERROR( "unable to alloc memory" );
// copy_1_1 needs disk usage for layers detection
//if(!copy_1_1)
{
d = wd_open_disc( read_src_wii_disc, callback_data );
if ( !d )
ERROR( "unable to open wii disc" );
wd_build_disc_usage( d, sel, used );
wd_close_disc( d );
d = 0;
}
for ( i = 0; i < p->max_disc; i++ )// find a free slot.
if ( p->head->disc_table[i] == 0 )
break;
if ( i == p->max_disc )
ERROR( "no space left on device (table full)" );
p->head->disc_table[i] = 1;
discn = i;
load_freeblocks( p );
// build disc info
info = wbfs_ioalloc( p->disc_info_sz );
read_src_wii_disc( callback_data, 0, 0x100, info->disc_header_copy );
copy_buffer = wbfs_ioalloc( p->wii_sec_sz );
if ( !copy_buffer )
ERROR( "alloc memory" );
tot = 0;
cur = 0;
num_wbfs_sect_to_copy = p->n_wbfs_sec_per_disc;
// count total number of sectors to write
last_used = 0;
for ( i = 0; i < num_wbfs_sect_to_copy; i++ )
{
if ( block_used( used, i, wii_sec_per_wbfs_sect ) )
{
tot += wii_sec_per_wbfs_sect;
last_used = i;
}
}
if ( copy_1_1 )
{
// detect single or dual layer
if ( ( last_used + 1 ) > ( p->n_wbfs_sec_per_disc / 2 ) )
{
// dual layer
num_wbfs_sect_to_copy = p->n_wbfs_sec_per_disc;
}
else
{
// single layer
num_wbfs_sect_to_copy = p->n_wbfs_sec_per_disc / 2;
}
tot = num_wbfs_sect_to_copy * wii_sec_per_wbfs_sect;
}
/*
// num of hd sectors to copy could be specified directly
if (copy_1_1 > 1) {
u32 hd_sec_per_wii_sec = p->wii_sec_sz / p->hd_sec_sz;
num_wbfs_sect_to_copy = copy_1_1 / hd_sec_per_wii_sec / wii_sec_per_wbfs_sect;
tot = num_wbfs_sect_to_copy * wii_sec_per_wbfs_sect;
}*/
int ret = 0;
if ( spinner ) spinner( 0, tot );
for ( i = 0; i < num_wbfs_sect_to_copy; i++ )
{
u16 bl = 0;
if ( copy_1_1 || block_used( used, i, wii_sec_per_wbfs_sect ) )
{
u16 j;
bl = alloc_block( p );
if ( bl == 0xffff )
ERROR( "no space left on device (disc full)" );
for ( j = 0; j < wii_sec_per_wbfs_sect; j++ )
{
u32 offset = ( i * ( p->wbfs_sec_sz >> 2 ) ) + ( j * ( p->wii_sec_sz >> 2 ) );
ret = read_src_wii_disc( callback_data, offset, p->wii_sec_sz, copy_buffer );
if ( ret )
{
if ( copy_1_1 && i > p->n_wbfs_sec_per_disc / 2 )
{
// end of dual layer data
if ( j > 0 )
{
info->wlba_table[i] = wbfs_htons( bl );
}
spinner( tot, tot );
break;
}
//ERROR("read error");
printf( "\rWARNING: read (%u) error (%d)\n", offset, ret );
}
//fix the partition table
if ( offset == ( 0x40000 >> 2 ) )
wd_fix_partition_table( d, sel, copy_buffer );
p->write_hdsector( p->callback_data,
p->part_lba + bl*( p->wbfs_sec_sz / p->hd_sec_sz ) + j*( p->wii_sec_sz / p->hd_sec_sz ),
p->wii_sec_sz / p->hd_sec_sz, copy_buffer );
cur++;
if ( spinner )
spinner( cur, tot );
}
}
if ( ret ) break;
info->wlba_table[i] = wbfs_htons( bl );
wbfs_sync( p );
}
// write disc info
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
p->write_hdsector( p->callback_data, p->part_lba + 1 + discn*disc_info_sz_lba, disc_info_sz_lba, info );
wbfs_sync( p );
retval = 0;
error:
if ( d )
wd_close_disc( d );
if ( used )
wbfs_free( used );
if ( info )
wbfs_iofree( info );
if ( copy_buffer )
wbfs_iofree( copy_buffer );
// init with all free blocks
return retval;
}
u32 wbfs_rm_disc( wbfs_t*p, u8* discid )
{
wbfs_disc_t *d = wbfs_open_disc( p, discid );
int i;
int discn = 0;
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
if ( !d )
return 1;
load_freeblocks( p );
discn = d->i;
for ( i = 0; i < p->n_wbfs_sec_per_disc; i++ )
{
u32 iwlba = wbfs_ntohs( d->header->wlba_table[i] );
if ( iwlba )
free_block( p, iwlba );
}
memset( d->header, 0, p->disc_info_sz );
p->write_hdsector( p->callback_data, p->part_lba + 1 + discn*disc_info_sz_lba, disc_info_sz_lba, d->header );
p->head->disc_table[discn] = 0;
wbfs_close_disc( d );
wbfs_sync( p );
return 0;
}
u32 wbfs_ren_disc( wbfs_t*p, u8* discid, u8* newname )
{
wbfs_disc_t *d = wbfs_open_disc( p, discid );
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
if ( !d )
return 1;
memset( d->header->disc_header_copy + 0x20, 0, 0x40 );
strncpy( ( char * ) d->header->disc_header_copy + 0x20, ( char * ) newname, 0x39 );
p->write_hdsector( p->callback_data, p->part_lba + 1 + d->i*disc_info_sz_lba, disc_info_sz_lba, d->header );
wbfs_close_disc( d );
return 0;
}
u32 wbfs_rID_disc( wbfs_t*p, u8* discid, u8* newID )
{
wbfs_disc_t *d = wbfs_open_disc( p, discid );
int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
if ( !d )
return 1;
memset( d->header->disc_header_copy, 0, 0x10 );
strncpy( ( char * ) d->header->disc_header_copy, ( char * ) newID, 0x9 );
p->write_hdsector( p->callback_data, p->part_lba + 1 + d->i*disc_info_sz_lba, disc_info_sz_lba, d->header );
wbfs_close_disc( d );
return 0;
}
// trim the file-system to its minimum size
u32 wbfs_trim( wbfs_t*p )
{
u32 maxbl;
load_freeblocks( p );
maxbl = alloc_block( p );
p->n_hd_sec = maxbl << ( p->wbfs_sec_sz_s - p->hd_sec_sz_s );
p->head->n_hd_sec = wbfs_htonl( p->n_hd_sec );
// make all block full
memset( p->freeblks, 0, p->n_wbfs_sec / 8 );
wbfs_sync( p );
// os layer will truncate the file.
return maxbl;
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}
// data extraction
u32 wbfs_extract_disc( wbfs_disc_t*d, rw_sector_callback_t write_dst_wii_sector, void *callback_data, progress_callback_t spinner )
{
wbfs_t *p = d->p;
u8* copy_buffer = 0;
int i;
int src_wbs_nlb = p->wbfs_sec_sz / p->hd_sec_sz;
int dst_wbs_nlb = p->wbfs_sec_sz / p->wii_sec_sz;
copy_buffer = wbfs_ioalloc( p->wbfs_sec_sz );
if ( !copy_buffer )
ERROR( "alloc memory" );
for ( i = 0; i < p->n_wbfs_sec_per_disc; i++ )
{
u32 iwlba = wbfs_ntohs( d->header->wlba_table[i] );
if ( iwlba )
{
if ( spinner )
spinner( i, p->n_wbfs_sec_per_disc );
p->read_hdsector( p->callback_data, p->part_lba + iwlba*src_wbs_nlb, src_wbs_nlb, copy_buffer );
write_dst_wii_sector( callback_data, i*dst_wbs_nlb, dst_wbs_nlb, copy_buffer );
}
}
wbfs_iofree( copy_buffer );
return 0;
error:
return 1;
}
float wbfs_estimate_disc
(
wbfs_t *p, read_wiidisc_callback_t read_src_wii_disc,
void *callback_data,
partition_selector_t sel )
{
u8 *b;
int i;
u32 tot;
u32 wii_sec_per_wbfs_sect = 1 << ( p->wbfs_sec_sz_s - p->wii_sec_sz_s );
wiidisc_t *d = 0;
u8 *used = 0;
wbfs_disc_info_t *info = 0;
tot = 0;
used = wbfs_malloc( p->n_wii_sec_per_disc );
if ( !used )
{
ERROR( "unable to alloc memory" );
}
d = wd_open_disc( read_src_wii_disc, callback_data );
if ( !d )
{
ERROR( "unable to open wii disc" );
}
wd_build_disc_usage( d, sel, used );
wd_close_disc( d );
d = 0;
info = wbfs_ioalloc( p->disc_info_sz );
b = ( u8 * )info;
read_src_wii_disc( callback_data, 0, 0x100, info->disc_header_copy );
//fprintf(stderr, "estimating %c%c%c%c%c%c %s...\n",b[0], b[1], b[2], b[3], b[4], b[5], b + 0x20);
for ( i = 0; i < p->n_wbfs_sec_per_disc; i++ )
{
if ( block_used( used, i, wii_sec_per_wbfs_sect ) )
{
tot++;
}
}
//memcpy(header, b,0x100);
error:
if ( d )
wd_close_disc( d );
if ( used )
wbfs_free( used );
if ( info )
wbfs_iofree( info );
return tot * ( ( ( p->wbfs_sec_sz*1.0 ) / p->hd_sec_sz ) * 512 );
}
u32 wbfs_size_disc( wbfs_t*p, read_wiidisc_callback_t read_src_wii_disc,
void *callback_data, partition_selector_t sel,
u32 *comp_size, u32 *real_size )
{
int i;
u32 tot = 0, last = 0;
u32 wii_sec_per_wbfs_sect = 1 << ( p->wbfs_sec_sz_s - p->wii_sec_sz_s );
wiidisc_t *d = 0;
u8 *used = 0;
used = wbfs_malloc( p->n_wii_sec_per_disc );
if ( !used )
ERROR( "unable to alloc memory" );
d = wd_open_disc( read_src_wii_disc, callback_data );
if ( !d )
ERROR( "unable to open wii disc" );
wd_build_disc_usage( d, sel, used );
wd_close_disc( d );
d = 0;
// count total number to write for spinner
for ( i = 0; i < p->n_wbfs_sec_per_disc; i++ )
{
if ( block_used( used, i, wii_sec_per_wbfs_sect ) )
{
tot += wii_sec_per_wbfs_sect;
last = i * wii_sec_per_wbfs_sect;
}
}
error:
if ( d )
wd_close_disc( d );
if ( used )
wbfs_free( used );
*comp_size = tot;
*real_size = last;
return 0;
}
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// offset is pointing 32bit words to address the whole dvd, although len is in bytes
//int wbfs_disc_read(wbfs_disc_t*d,u32 offset, u8 *data, u32 len)
// offset points 32bit words, count counts bytes
//int (*read_wiidisc_callback_t)(void*fp,u32 offset,u32 count,void*iobuf);
// connect wiidisc to wbfs_disc
int read_wiidisc_wbfsdisc( void*fp, u32 offset, u32 count, void*iobuf )
{
return wbfs_disc_read( ( wbfs_disc_t* )fp, offset, count, iobuf );
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}
int wbfs_extract_file( wbfs_disc_t*d, char *path, void **data )
{
wiidisc_t *wd = 0;
int ret = 0;
wd = wd_open_disc( read_wiidisc_wbfsdisc, d );
if ( !wd )
{
ERROR( "opening wbfs disc" );
return -1;
}
wd->extracted_size = 0;
*data = wd_extract_file( wd, ONLY_GAME_PARTITION, path );
ret = wd->extracted_size;
if ( !*data )
{
//ERROR("file not found");
ret = -1;
}
wd_close_disc( wd );
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error:
return ret;
}
int wbfs_get_fragments( wbfs_disc_t *d, _frag_append_t append_fragment, void *callback_data )
{
if ( !d ) return -1;
wbfs_t *p = d->p;
int src_wbs_nlb = p->wbfs_sec_sz / p->hd_sec_sz;
int i, ret, last = 0;
for ( i = 0; i < p->n_wbfs_sec_per_disc; i++ )
{
u32 iwlba = wbfs_ntohs( d->header->wlba_table[i] );
if ( iwlba )
{
ret = append_fragment( callback_data,
i * src_wbs_nlb, // offset
p->part_lba + iwlba * src_wbs_nlb, // sector
src_wbs_nlb ); // count
if ( ret ) return ret; // error
last = i;
}
}
if ( last < p->n_wbfs_sec_per_disc / 2 )
{
last = p->n_wbfs_sec_per_disc / 2;
}
u32 size = last * src_wbs_nlb;
append_fragment( callback_data, size, 0, 0 ); // set size
return 0;
}
// wrapper for reading .iso files using wbfs apis
#include <unistd.h>
#include <sys/stat.h>
// offset is pointing 32bit words to address the whole dvd, although len is in bytes
int wbfs_iso_file_read( wbfs_disc_t*d, u32 offset, u8 *data, u32 len )
{
if ( !d || d->p != &wbfs_iso_file ) return -1;
int fd = ( int )d->header;
off_t off = ( ( u64 )offset ) << 2;
off_t ret_off;
int ret;
ret_off = lseek( fd, off, SEEK_SET );
if ( ret_off != off ) return -1;
ret = read( fd, data, len );
if ( ret != len ) return -2;
return 0;
}
u32 wbfs_disc_sector_used( wbfs_disc_t *d, u32 *num_blk )
{
if ( d->p == &wbfs_iso_file )
{
int fd = ( int )d->header;
struct stat st;
if ( fstat( fd, &st ) == -1 ) return 0;
if ( num_blk )
{
*num_blk = ( st.st_size >> 9 ); // in 512 units
}
return st.st_blocks; // in 512 units (can be sparse)
}
u32 last_blk = 0;
u32 ret;
ret = wbfs_sector_used2( d->p, d->header, &last_blk );
if ( num_blk )
{
*num_blk = last_blk + 1;
}
return ret;
}
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