diff options
Diffstat (limited to 'arm9/lib/src/FS_overlay.c')
| -rw-r--r-- | arm9/lib/src/FS_overlay.c | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/arm9/lib/src/FS_overlay.c b/arm9/lib/src/FS_overlay.c deleted file mode 100644 index de64d97d..00000000 --- a/arm9/lib/src/FS_overlay.c +++ /dev/null @@ -1,320 +0,0 @@ -#include "nitro.h" -#include "DGT_common.h" -#include "DGT_dgt.h" -#include "OS_cache.h" -#include "OS_system.h" -#include "OS_printf.h" -#include "MI_memory.h" -#include "MI_uncompress.h" -#include "FS_rom.h" -#include "FS_overlay.h" -#include "FS_mw_dtor.h" -#include "MB_mb.h" - -#define FS_OVERLAY_FLAG_COMP 0x0001 -#define FS_OVERLAY_FLAG_AUTH 0x0002 -#define FS_OVERLAY_DIGEST_SIZE DGT_HASH2_DIGEST_SIZE - -ARM_FUNC u32 FSi_GetOverlayBinarySize(FSOverlayInfo * p_ovi) -{ - u32 size = (p_ovi->header.flag & FS_OVERLAY_FLAG_COMP) - ? p_ovi->header.compressed - : p_ovi->header.ram_size; - return size; -} - -ARM_FUNC void FS_ClearOverlayImage(FSOverlayInfo * p_ovi) -{ - u8 * const im_start = FS_GetOverlayAddress(p_ovi); - u32 const ram_size = FS_GetOverlayImageSize(p_ovi); - u32 const total_size = FS_GetOverlayTotalSize(p_ovi); - - IC_InvalidateRange(im_start, total_size); - DC_InvalidateRange(im_start, total_size); - MI_CpuFill8(im_start + ram_size, 0, total_size - ram_size); -} - -ARM_FUNC FSFileID FS_GetOverlayFileID(FSOverlayInfo * p_ovi) -{ - FSFileID ret; - ret.arc = &fsi_arc_rom; - ret.file_id = p_ovi->header.file_id; - return ret; -} - -ARM_FUNC BOOL FSi_LoadOverlayInfoCore(FSOverlayInfo * p_ovi, MIProcessor target, FSOverlayID id, FSArchive * arc, u32 offset_arm9, u32 len_arm9, u32 offset_arm7, u32 len_arm7) -{ - CARDRomRegion pr[1]; - u32 pos; - if (target == MI_PROCESSOR_ARM9) - { - pr->offset = offset_arm9; - pr->length = len_arm9; - } - else - { - pr->offset = offset_arm7; - pr->length = len_arm7; - } - pos = (u32) id * sizeof(FSOverlayInfoHeader); - if (pos >= pr->length) - return FALSE; - - FSFile file[1]; - FS_InitFile(file); - // BOOL FS_OpenFileDirect(FSFile * p_file, FSArchive * p_arc, u32 image_top, u32 image_bottom, u32 file_index) - if (!FS_OpenFileDirect(file, arc, pr->offset + pos, pr->offset + pr->length, (u32)~0)) - return FALSE; - if (FS_ReadFile(file, p_ovi, sizeof(FSOverlayInfoHeader)) != sizeof(FSOverlayInfoHeader)) - { - (void)FS_CloseFile(file); - return FALSE; - } - (void)FS_CloseFile(file); - p_ovi->target = target; - if (!FS_OpenFileFast(file, FS_GetOverlayFileID(p_ovi))) - return FALSE; - p_ovi->file_pos.offset = FS_GetFileImageTop(file); - p_ovi->file_pos.length = FS_GetLength(file); - (void)FS_CloseFile(file); - return TRUE; -} - -ARM_FUNC BOOL FS_LoadOverlayInfo(FSOverlayInfo * p_ovi, MIProcessor target, FSOverlayID id) -{ - CARDRomRegion * const pr = (target == MI_PROCESSOR_ARM9) ? &fsi_ovt9 : &fsi_ovt7; - if (pr->offset) - { - FSFile file[1]; - const u32 pos = id * sizeof(FSOverlayInfoHeader); - if (pos >= pr->length) - return FALSE; - MI_CpuCopy8((const void *)(pr->offset + pos), p_ovi, sizeof(FSOverlayInfoHeader)); - p_ovi->target = target; - FS_InitFile(file); - if (!FS_OpenFileFast(file, FS_GetOverlayFileID(p_ovi))) - return FALSE; - p_ovi->file_pos.offset = FS_GetFileImageTop(file); - p_ovi->file_pos.length = FS_GetLength(file); - (void)FS_CloseFile(file); - return TRUE; - } - else - { - const CARDRomRegion * const p_ovt9 = CARD_GetRomRegionOVT(MI_PROCESSOR_ARM9); - const CARDRomRegion * const p_ovt7 = CARD_GetRomRegionOVT(MI_PROCESSOR_ARM7); - return FSi_LoadOverlayInfoCore(p_ovi, target, id, &fsi_arc_rom, p_ovt9->offset, p_ovt9->length, p_ovt7->offset, p_ovt7->length); - } -} - -ARM_FUNC BOOL FS_LoadOverlayImageAsync(FSOverlayInfo * p_ovi, FSFile * p_file) -{ - FS_InitFile(p_file); - if (!FS_OpenFileFast(p_file, FS_GetOverlayFileID(p_ovi))) - return FALSE; - else - { - s32 size = (s32)FSi_GetOverlayBinarySize(p_ovi); - FS_ClearOverlayImage(p_ovi); - if (FS_ReadFileAsync(p_file, FS_GetOverlayAddress(p_ovi), size) != size) - { - (void)FS_CloseFile(p_file); - return FALSE; - } - return TRUE; - } -} - -ARM_FUNC BOOL FS_LoadOverlayImage(FSOverlayInfo * p_ovi) -{ - FSFile file[1]; - FS_InitFile(file); - if (!FS_OpenFileFast(file, FS_GetOverlayFileID(p_ovi))) - return FALSE; - else - { - s32 size = (s32)FSi_GetOverlayBinarySize(p_ovi); - FS_ClearOverlayImage(p_ovi); - if (FS_ReadFile(file, FS_GetOverlayAddress(p_ovi), size) != size) - { - (void)FS_CloseFile(file); - return FALSE; - } - (void)FS_CloseFile(file); - return TRUE; - } -} - -static const u8 fsi_def_digest_key[64] = { - 0x21, 0x06, 0xc0, 0xde, - 0xba, 0x98, 0xce, 0x3f, - 0xa6, 0x92, 0xe3, 0x9d, - 0x46, 0xf2, 0xed, 0x01, - - 0x76, 0xe3, 0xcc, 0x08, - 0x56, 0x23, 0x63, 0xfa, - 0xca, 0xd4, 0xec, 0xdf, - 0x9a, 0x62, 0x78, 0x34, - - 0x8f, 0x6d, 0x63, 0x3c, - 0xfe, 0x22, 0xca, 0x92, - 0x20, 0x88, 0x97, 0x23, - 0xd2, 0xcf, 0xae, 0xc2, - - 0x32, 0x67, 0x8d, 0xfe, - 0xca, 0x83, 0x64, 0x98, - 0xac, 0xfd, 0x3e, 0x37, - 0x87, 0x46, 0x58, 0x24, -}; - -static const void *fsi_digest_key_ptr = fsi_def_digest_key; -static u32 fsi_digest_key_len = sizeof(fsi_def_digest_key); - -ARM_FUNC BOOL FSi_CompareDigest(const u8 *spec_digest, void *src, u32 len) -{ - int i; - u8 digest[FS_OVERLAY_DIGEST_SIZE]; - u8 digest_key[64]; - - MI_CpuClear8(digest, sizeof(digest)); - MI_CpuCopy8(fsi_digest_key_ptr, digest_key, fsi_digest_key_len); - DGT_Hash2CalcHmac(digest, src, len, digest_key, fsi_digest_key_len); - for (i = 0; i < sizeof(digest); i += sizeof(u32)) - { - if (*(const u32 *)(digest + i) != *(const u32 *)(spec_digest + i)) - break; - } - return i == sizeof(digest); -} - -extern u8 SDK_OVERLAY_DIGEST[]; -extern u8 SDK_OVERLAY_DIGEST_END[]; - -ARM_FUNC void FS_StartOverlay(FSOverlayInfo * p_ovi) -{ - u32 rare_size = FSi_GetOverlayBinarySize(p_ovi); - if (MB_IsMultiBootChild()) - { - BOOL ret = FALSE; - - if (p_ovi->header.flag & FS_OVERLAY_FLAG_AUTH) - { - const u32 odt_max = (u32)((SDK_OVERLAY_DIGEST_END - SDK_OVERLAY_DIGEST) / FS_OVERLAY_DIGEST_SIZE); - if (p_ovi->header.id < odt_max) - { - const u8 * spec_digest = SDK_OVERLAY_DIGEST + FS_OVERLAY_DIGEST_SIZE * p_ovi->header.id; - ret = FSi_CompareDigest(spec_digest, p_ovi->header.ram_address, rare_size); - } - } - if (!ret) - { - MI_CpuClear8(p_ovi->header.ram_address, rare_size); - OS_TPanic("FS_StartOverlay() failed! (invalid overlay-segment data)"); - return; - } - } - if (p_ovi->header.flag & FS_OVERLAY_FLAG_COMP) - { - MIi_UncompressBackward(p_ovi->header.ram_address + rare_size); - } - DC_FlushRange(p_ovi->header.ram_address, p_ovi->header.ram_size); - - { - FSOverlayInitFunc *p = p_ovi->header.sinit_init; - FSOverlayInitFunc *q = p_ovi->header.sinit_init_end; - for (; p < q; ++p) - { - if (*p) - (**p)(); - } - } -} - -ARM_FUNC void FS_EndOverlay(FSOverlayInfo *p_ovi) -{ - for (;;) - { - MWiDestructorChain *head = NULL, *tail = NULL; - const u32 region_top = (u32)FS_GetOverlayAddress(p_ovi); - const u32 region_bottom = region_top + FS_GetOverlayTotalSize(p_ovi); - - { - OSIntrMode bak_psr = OS_DisableInterrupts(); - MWiDestructorChain *prev = NULL; - MWiDestructorChain *base = __global_destructor_chain; - MWiDestructorChain *p = base; - while (p) - { - MWiDestructorChain *next = p->next; - const u32 dtor = (u32)p->dtor; - const u32 obj = (u32)p->obj; - if (((obj == 0) && (dtor >= region_top) && (dtor < region_bottom)) || - ((obj >= region_top) && (obj < region_bottom))) - { - /* If appropriate, extract*/ - if (!tail) - { - head = p; - } - else - { - tail->next = p; - } - if (base == p) - { - base = __global_destructor_chain = next; - } - tail = p, p->next = NULL; - if (prev) - { - prev->next = next; - } - } - else - { - prev = p; - } - p = next; - } - (void)OS_RestoreInterrupts(bak_psr); - } - - if (!head) - { - break; - } - do - { - MWiDestructorChain *next = head->next; - if (head->dtor) - { - (*head->dtor) (head->obj); - } - head = next; - } - while (head); - } -} - -ARM_FUNC BOOL FS_UnloadOverlayImage(FSOverlayInfo * p_ovi) -{ - FS_EndOverlay(p_ovi); - return TRUE; -} - -ARM_FUNC BOOL FS_LoadOverlay(MIProcessor target, FSOverlayID id) -{ - FSOverlayInfo ovi; - if (!FS_LoadOverlayInfo(&ovi, target, id) || !FS_LoadOverlayImage(&ovi)) - return FALSE; - FS_StartOverlay(&ovi); - return TRUE; -} - -ARM_FUNC BOOL FS_UnloadOverlay(MIProcessor target, FSOverlayID id) -{ - FSOverlayInfo ovi; - if (!FS_LoadOverlayInfo(&ovi, target, id) || !FS_UnloadOverlayImage(&ovi)) - return FALSE; - return TRUE; -} |