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#include "PRinternal/macros.h"
#include "PR/os_internal.h"
#include "PRinternal/controller.h"
s32 corrupted_init(OSPfs* pfs, __OSInodeCache* cache);
s32 corrupted(OSPfs* pfs, __OSInodeUnit fpage, __OSInodeCache* cache);
#define CHECK_IPAGE(p) \
(((p).ipage >= pfs->inode_start_page) && ((p).inode_t.bank < pfs->banks) && ((p).inode_t.page >= 0x01) && \
((p).inode_t.page < 0x80))
s32 osPfsChecker(OSPfs* pfs) {
int j;
s32 ret;
__OSInodeUnit next_page;
__OSInode checked_inode;
__OSInode tmp_inode;
__OSDir tmp_dir;
__OSInodeUnit file_next_node[16];
__OSInodeCache cache;
int fixed = 0;
u8 bank;
#if BUILD_VERSION >= VERSION_J
u8 oldbank = 254;
#endif
s32 cc;
s32 cl;
int offset;
ret = __osCheckId(pfs);
if (ret == PFS_ERR_NEW_PACK) {
ret = __osGetId(pfs);
}
if (ret != 0) {
return ret;
}
ERRCK(corrupted_init(pfs, &cache));
for (j = 0; j < pfs->dir_size; j++) {
ERRCK(__osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + j, (u8*)&tmp_dir));
#if BUILD_VERSION >= VERSION_J
if (tmp_dir.company_code != 0 || tmp_dir.game_code != 0) {
if (tmp_dir.company_code == 0 || tmp_dir.game_code == 0) {
cc = -1;
} else {
next_page = tmp_dir.start_page;
cl = cc = 0;
bank = 255;
while (CHECK_IPAGE(next_page)) {
if (bank != next_page.inode_t.bank) {
bank = next_page.inode_t.bank;
if (oldbank != bank) {
ret = __osPfsRWInode(pfs, &tmp_inode, PFS_READ, bank);
oldbank = bank;
}
if (ret != 0 && ret != PFS_ERR_INCONSISTENT) {
return ret;
}
}
if ((cc = corrupted(pfs, next_page, &cache) - cl) != 0) {
break;
}
cl = 1;
next_page = tmp_inode.inode_page[next_page.inode_t.page];
}
}
if (cc != 0 || next_page.ipage != PFS_EOF) {
bzero(&tmp_dir, sizeof(__OSDir));
SET_ACTIVEBANK_TO_ZERO();
ERRCK(__osContRamWrite(pfs->queue, pfs->channel, pfs->dir_table + j, (u8*)&tmp_dir, FALSE));
fixed++;
}
}
#else
if (tmp_dir.company_code != 0 && tmp_dir.game_code != 0) {
next_page = tmp_dir.start_page;
cl = cc = 0;
bank = 255;
while (CHECK_IPAGE(next_page)) {
if (bank != next_page.inode_t.bank) {
bank = next_page.inode_t.bank;
ret = __osPfsRWInode(pfs, &tmp_inode, PFS_READ, bank);
if (ret != 0 && ret != PFS_ERR_INCONSISTENT) {
return ret;
}
}
if ((cc = corrupted(pfs, next_page, &cache) - cl) != 0) {
break;
}
cl = 1;
next_page = tmp_inode.inode_page[next_page.inode_t.page];
}
if (cc != 0 || next_page.ipage != PFS_EOF) {
tmp_dir.company_code = 0;
tmp_dir.game_code = 0;
tmp_dir.start_page.ipage = 0;
tmp_dir.status = DIR_STATUS_EMPTY;
tmp_dir.data_sum = 0;
SET_ACTIVEBANK_TO_ZERO();
ERRCK(__osContRamWrite(pfs->queue, pfs->channel, pfs->dir_table + j, (u8*)&tmp_dir, FALSE));
fixed++;
}
} else {
if (tmp_dir.company_code != 0 || tmp_dir.game_code != 0) {
tmp_dir.company_code = 0;
tmp_dir.game_code = 0;
tmp_dir.start_page.ipage = 0;
tmp_dir.status = DIR_STATUS_EMPTY;
tmp_dir.data_sum = 0;
SET_ACTIVEBANK_TO_ZERO();
ERRCK(__osContRamWrite(pfs->queue, pfs->channel, pfs->dir_table + j, (u8*)&tmp_dir, FALSE));
fixed++;
}
}
#endif
}
for (j = 0; j < pfs->dir_size; j++) {
ERRCK(__osContRamRead(pfs->queue, pfs->channel, pfs->dir_table + j, (u8*)&tmp_dir));
if (tmp_dir.company_code != 0 && tmp_dir.game_code != 0 &&
tmp_dir.start_page.ipage >= (u16)pfs->inode_start_page) {
file_next_node[j].ipage = tmp_dir.start_page.ipage;
} else {
file_next_node[j].ipage = 0;
}
}
for (bank = 0; bank < pfs->banks; bank++) {
ret = __osPfsRWInode(pfs, &tmp_inode, PFS_READ, bank);
if (ret != 0 && ret != PFS_ERR_INCONSISTENT) {
return ret;
}
offset = (bank > 0) ? 1 : pfs->inode_start_page;
for (j = 0; j < offset; j++) {
checked_inode.inode_page[j].ipage = tmp_inode.inode_page[j].ipage;
}
for (; j < 128; j++) {
checked_inode.inode_page[j].ipage = PFS_PAGE_NOT_USED;
}
for (j = 0; j < pfs->dir_size; j++) {
while (file_next_node[j].inode_t.bank == bank && file_next_node[j].ipage >= (u16)pfs->inode_start_page) {
u8 pp = file_next_node[j].inode_t.page;
file_next_node[j] = checked_inode.inode_page[pp] = tmp_inode.inode_page[pp];
}
}
ERRCK(__osPfsRWInode(pfs, &checked_inode, PFS_WRITE, bank));
}
if (fixed) {
pfs->status |= PFS_CORRUPTED;
} else {
pfs->status &= ~PFS_CORRUPTED;
}
return 0;
}
s32 corrupted_init(OSPfs* pfs, __OSInodeCache* cache) {
int i;
int n;
int offset;
u8 bank;
__OSInodeUnit tpage;
__OSInode tmp_inode;
s32 ret;
for (i = 0; i < PFS_INODE_DIST_MAP; i++) {
cache->map[i] = 0;
}
cache->bank = -1;
for (bank = 0; bank < pfs->banks; bank++) {
offset = bank > 0 ? 1 : pfs->inode_start_page;
ret = __osPfsRWInode(pfs, &tmp_inode, PFS_READ, bank);
if (ret != 0 && ret != PFS_ERR_INCONSISTENT) {
return ret;
}
for (i = offset; i < ARRLEN(tmp_inode.inode_page); i++) {
tpage = tmp_inode.inode_page[i];
if (tpage.ipage >= pfs->inode_start_page && tpage.inode_t.bank != bank) {
#if BUILD_VERSION >= VERSION_J
n = ((tpage.inode_t.page & 0x7F) / PFS_SECTOR_SIZE) +
((tpage.inode_t.bank % PFS_BANK_LAPPED_BY) * BLOCKSIZE);
#else
n = ((tpage.inode_t.page) / PFS_SECTOR_SIZE) +
((tpage.inode_t.bank % PFS_BANK_LAPPED_BY) * BLOCKSIZE);
#endif
cache->map[n] |= 1 << (bank % PFS_BANK_LAPPED_BY);
}
}
}
return 0;
}
s32 corrupted(OSPfs* pfs, __OSInodeUnit fpage, __OSInodeCache* cache) {
int j;
int n;
int hit;
u8 bank;
int offset;
s32 ret;
hit = 0;
ret = 0;
n = (fpage.inode_t.page / PFS_SECTOR_SIZE) + (fpage.inode_t.bank % PFS_BANK_LAPPED_BY) * BLOCKSIZE;
for (bank = 0; bank < pfs->banks; bank++) {
offset = bank > 0 ? 1 : pfs->inode_start_page;
if (bank == fpage.inode_t.bank || cache->map[n] & (1 << (bank % PFS_BANK_LAPPED_BY))) {
if (bank != cache->bank) {
ret = __osPfsRWInode(pfs, &cache->inode, PFS_READ, bank);
if (ret != 0 && ret != PFS_ERR_INCONSISTENT) {
return ret;
}
cache->bank = bank;
}
for (j = offset; hit < 2 && (j < ARRLEN(cache->inode.inode_page)); j++) {
if (cache->inode.inode_page[j].ipage == fpage.ipage) {
hit++;
}
}
if (hit >= 2) {
return PFS_ERR_NEW_PACK;
}
}
}
return hit;
}
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