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d0k3 2021-02-18 19:06:31 +01:00
parent ab4316fd4e
commit 2f61722aa4
3 changed files with 74 additions and 74 deletions
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110
arm9/source/game/seedsave.c
View File

@ -9,28 +9,28 @@
// this structure is 0x80 bytes, thanks @luigoalma // this structure is 0x80 bytes, thanks @luigoalma
typedef struct { typedef struct {
char magic[4]; // "PREP" for prepurchase install. NIM excepts "PREP" to do seed downloads on the background. char magic[4]; // "PREP" for prepurchase install. NIM excepts "PREP" to do seed downloads on the background.
// playable date parameters // playable date parameters
// 2000-01-01 is a safe bet for a stub entry // 2000-01-01 is a safe bet for a stub entry
s32 year; s32 year;
u8 month; u8 month;
u8 day; u8 day;
u16 country_code; // enum list of values, this will affect seed downloading, just requires at least one valid enum value. 1 == Japan, it's enough. u16 country_code; // enum list of values, this will affect seed downloading, just requires at least one valid enum value. 1 == Japan, it's enough.
// everything after this point can be 0 padded // everything after this point can be 0 padded
u32 seed_status; // 0 == not tried, 1 == last attempt failed, 2 == seed downloaded successfully u32 seed_status; // 0 == not tried, 1 == last attempt failed, 2 == seed downloaded successfully
s32 seed_result; // result related to last download attempt s32 seed_result; // result related to last download attempt
s32 seed_support_error_code; // support code derived from the result code s32 seed_support_error_code; // support code derived from the result code
// after this point, all is unused or padding. NIM wont use or access this at all. // after this point, all is unused or padding. NIM wont use or access this at all.
// It's memset to 0 by NIM // It's memset to 0 by NIM
u8 unknown[0x68]; u8 unknown[0x68];
} PACKED_STRUCT TitleTagEntry; } PACKED_STRUCT TitleTagEntry;
typedef struct { typedef struct {
u32 unknown0; u32 unknown0;
u32 n_entries; u32 n_entries;
u8 unknown1[0x1000 - 0x8]; u8 unknown1[0x1000 - 0x8];
u64 titleId[TITLETAG_MAX_ENTRIES]; u64 titleId[TITLETAG_MAX_ENTRIES];
TitleTagEntry tag[TITLETAG_MAX_ENTRIES]; TitleTagEntry tag[TITLETAG_MAX_ENTRIES];
} PACKED_STRUCT TitleTag; } PACKED_STRUCT TitleTag;
u32 GetSeedPath(char* path, const char* drv) { u32 GetSeedPath(char* path, const char* drv) {
@ -82,7 +82,7 @@ u32 FindSeed(u8* seed, u64 titleId, u32 hash_seed) {
// read SEEDDB from file // read SEEDDB from file
if (GetSeedPath(path, nand_drv[i]) != 0) continue; if (GetSeedPath(path, nand_drv[i]) != 0) continue;
if ((ReadDisaDiffIvfcLvl4(path, NULL, SEEDSAVE_AREA_OFFSET, sizeof(SeedDb), seeddb) != sizeof(SeedDb)) || if ((ReadDisaDiffIvfcLvl4(path, NULL, SEEDSAVE_AREA_OFFSET, sizeof(SeedDb), seeddb) != sizeof(SeedDb)) ||
(seeddb->n_entries > SEEDSAVE_MAX_ENTRIES)) (seeddb->n_entries > SEEDSAVE_MAX_ENTRIES))
continue; continue;
// search for the seed // search for the seed
@ -97,8 +97,8 @@ u32 FindSeed(u8* seed, u64 titleId, u32 hash_seed) {
} }
} }
} }
// not found -> try seeddb.bin // not found -> try seeddb.bin
SeedInfo* seeddb = (SeedInfo*) (void*) buffer; SeedInfo* seeddb = (SeedInfo*) (void*) buffer;
size_t len = LoadSupportFile(SEEDINFO_NAME, seeddb, STD_BUFFER_SIZE); size_t len = LoadSupportFile(SEEDINFO_NAME, seeddb, STD_BUFFER_SIZE);
if (len && (seeddb->n_entries <= (len - 16) / 32)) { // check filesize / seeddb size if (len && (seeddb->n_entries <= (len - 16) / 32)) { // check filesize / seeddb size
@ -169,49 +169,49 @@ u32 InstallSeedDbToSystem(SeedInfo* seed_info, bool to_emunand) {
} }
u32 SetupSeedPrePurchase(u64 titleId, bool to_emunand) { u32 SetupSeedPrePurchase(u64 titleId, bool to_emunand) {
// here, we ask the system to install the seed for us // here, we ask the system to install the seed for us
TitleTag* titletag = (TitleTag*) malloc(sizeof(TitleTag)); TitleTag* titletag = (TitleTag*) malloc(sizeof(TitleTag));
if (!titletag) return 1; if (!titletag) return 1;
char path[128]; char path[128];
if ((GetSeedPath(path, to_emunand ? "4:" : "1:") != 0) || if ((GetSeedPath(path, to_emunand ? "4:" : "1:") != 0) ||
(ReadDisaDiffIvfcLvl4(path, NULL, TITLETAG_AREA_OFFSET, sizeof(TitleTag), titletag) != sizeof(TitleTag)) || (ReadDisaDiffIvfcLvl4(path, NULL, TITLETAG_AREA_OFFSET, sizeof(TitleTag), titletag) != sizeof(TitleTag)) ||
(titletag->n_entries >= TITLETAG_MAX_ENTRIES)) { (titletag->n_entries >= TITLETAG_MAX_ENTRIES)) {
free (titletag); free (titletag);
return 1; return 1;
} }
// pointers for TITLETAG title IDs and seeds // pointers for TITLETAG title IDs and seeds
// find a free slot, insert titletag // find a free slot, insert titletag
u32 slot = 0; u32 slot = 0;
for (; slot < titletag->n_entries; slot++) for (; slot < titletag->n_entries; slot++)
if (titletag->titleId[slot] == titleId) break; if (titletag->titleId[slot] == titleId) break;
if (slot >= titletag->n_entries) if (slot >= titletag->n_entries)
titletag->n_entries = slot + 1; titletag->n_entries = slot + 1;
TitleTagEntry* ttag = &(titletag->tag[slot]); TitleTagEntry* ttag = &(titletag->tag[slot]);
titletag->titleId[slot] = titleId; titletag->titleId[slot] = titleId;
memset(ttag, 0, sizeof(TitleTagEntry)); memset(ttag, 0, sizeof(TitleTagEntry));
memcpy(ttag->magic, "PREP", 4); memcpy(ttag->magic, "PREP", 4);
ttag->year = 2000; ttag->year = 2000;
ttag->month = 1; ttag->month = 1;
ttag->day = 1; ttag->day = 1;
ttag->country_code = 1; ttag->country_code = 1;
// write back to system (warning: no write protection checks here) // write back to system (warning: no write protection checks here)
u32 size = WriteDisaDiffIvfcLvl4(path, NULL, TITLETAG_AREA_OFFSET, sizeof(TitleTag), titletag); u32 size = WriteDisaDiffIvfcLvl4(path, NULL, TITLETAG_AREA_OFFSET, sizeof(TitleTag), titletag);
FixFileCmac(path, false); FixFileCmac(path, false);
free(titletag); free(titletag);
return (size == sizeof(TitleTag)) ? 0 : 1; return (size == sizeof(TitleTag)) ? 0 : 1;
} }
u32 SetupSeedSystemCrypto(u64 titleId, u32 hash_seed, bool to_emunand) { u32 SetupSeedSystemCrypto(u64 titleId, u32 hash_seed, bool to_emunand) {
// attempt to find the seed inside the seeddb.bin support file // attempt to find the seed inside the seeddb.bin support file
SeedInfo* seeddb = (SeedInfo*) malloc(STD_BUFFER_SIZE); SeedInfo* seeddb = (SeedInfo*) malloc(STD_BUFFER_SIZE);
if (!seeddb) return 1; if (!seeddb) return 1;
size_t len = LoadSupportFile(SEEDINFO_NAME, seeddb, STD_BUFFER_SIZE); size_t len = LoadSupportFile(SEEDINFO_NAME, seeddb, STD_BUFFER_SIZE);
if (len && (seeddb->n_entries <= (len - 16) / 32)) { // check filesize / seeddb size if (len && (seeddb->n_entries <= (len - 16) / 32)) { // check filesize / seeddb size
for (u32 s = 0; s < seeddb->n_entries; s++) { for (u32 s = 0; s < seeddb->n_entries; s++) {
if (titleId != seeddb->entries[s].titleId) if (titleId != seeddb->entries[s].titleId)
@ -224,7 +224,7 @@ u32 SetupSeedSystemCrypto(u64 titleId, u32 hash_seed, bool to_emunand) {
sha_quick(sha256sum, lseed, 16 + 8, SHA256_MODE); sha_quick(sha256sum, lseed, 16 + 8, SHA256_MODE);
u32 res = 0; // assuming the installed seed to be correct u32 res = 0; // assuming the installed seed to be correct
if (hash_seed == sha256sum[0]) { if (hash_seed == sha256sum[0]) {
// found, install it // found, install it
seeddb->n_entries = 1; seeddb->n_entries = 1;
seeddb->entries[0].titleId = titleId; seeddb->entries[0].titleId = titleId;
memcpy(&(seeddb->entries[0].seed), lseed, sizeof(Seed)); memcpy(&(seeddb->entries[0].seed), lseed, sizeof(Seed));
@ -236,5 +236,5 @@ u32 SetupSeedSystemCrypto(u64 titleId, u32 hash_seed, bool to_emunand) {
} }
free(seeddb); free(seeddb);
return 1; return 1;
} }

12
arm9/source/game/seedsave.h
View File

@ -10,7 +10,7 @@
#define SEEDSAVE_AREA_OFFSET 0x3000 #define SEEDSAVE_AREA_OFFSET 0x3000
typedef struct { typedef struct {
u8 byte[16]; u8 byte[16];
} PACKED_STRUCT Seed; } PACKED_STRUCT Seed;
typedef struct { typedef struct {
@ -26,11 +26,11 @@ typedef struct {
} PACKED_STRUCT SeedInfo; } PACKED_STRUCT SeedInfo;
typedef struct { typedef struct {
u32 unknown0; u32 unknown0;
u32 n_entries; u32 n_entries;
u8 unknown1[0x1000 - 0x8]; u8 unknown1[0x1000 - 0x8];
u64 titleId[SEEDSAVE_MAX_ENTRIES]; u64 titleId[SEEDSAVE_MAX_ENTRIES];
Seed seed[SEEDSAVE_MAX_ENTRIES]; Seed seed[SEEDSAVE_MAX_ENTRIES];
} PACKED_STRUCT SeedDb; } PACKED_STRUCT SeedDb;
u32 GetSeedPath(char* path, const char* drv); u32 GetSeedPath(char* path, const char* drv);

26
arm9/source/gamecart/gamecart.c
View File

@ -63,13 +63,13 @@ u32 GetCartName(char* name, CartData* cdata) {
} }
u32 GetCartInfoString(char* info, CartData* cdata) { u32 GetCartInfoString(char* info, CartData* cdata) {
if (cdata->cart_type & CART_CTR) { if (cdata->cart_type & CART_CTR) {
CartDataCtr* cdata_i = (CartDataCtr*)cdata; CartDataCtr* cdata_i = (CartDataCtr*)cdata;
NcsdHeader* ncsd = &(cdata_i->ncsd); NcsdHeader* ncsd = &(cdata_i->ncsd);
NcchHeader* ncch = &(cdata_i->ncch); NcchHeader* ncch = &(cdata_i->ncch);
snprintf(info, 256, "Title ID : %016llX\nProduct Code : %.10s\nRevision : %lu\nCart ID : %08lX\nPlatform : %s\nTimestamp : 20%02X-%02X-%02X %02X:%02X:%02X\nGM9 Version : %s\n", snprintf(info, 256, "Title ID : %016llX\nProduct Code : %.10s\nRevision : %lu\nCart ID : %08lX\nPlatform : %s\nTimestamp : 20%02X-%02X-%02X %02X:%02X:%02X\nGM9 Version : %s\n",
ncsd->mediaId, ncch->productcode, cdata_i->rom_version, cdata_i->cart_id, ncsd->mediaId, ncch->productcode, cdata_i->rom_version, cdata_i->cart_id,
(ncch->flags[4] == 0x2) ? "N3DS" : "O3DS", (ncch->flags[4] == 0x2) ? "N3DS" : "O3DS",
init_time.bcd_Y, init_time.bcd_M, init_time.bcd_D, init_time.bcd_Y, init_time.bcd_M, init_time.bcd_D,
init_time.bcd_h, init_time.bcd_m, init_time.bcd_s, init_time.bcd_h, init_time.bcd_m, init_time.bcd_s,
VERSION); VERSION);
@ -77,8 +77,8 @@ u32 GetCartInfoString(char* info, CartData* cdata) {
CartDataNtrTwl* cdata_i = (CartDataNtrTwl*)cdata; CartDataNtrTwl* cdata_i = (CartDataNtrTwl*)cdata;
TwlHeader* nds = &(cdata_i->ntr_header); TwlHeader* nds = &(cdata_i->ntr_header);
snprintf(info, 256, "Title String : %.12s\nProduct Code : %.6s\nRevision : %u\nCart ID : %08lX\nPlatform : %s\nTimestamp : 20%02X-%02X-%02X %02X:%02X:%02X\nGM9 Version : %s\n", snprintf(info, 256, "Title String : %.12s\nProduct Code : %.6s\nRevision : %u\nCart ID : %08lX\nPlatform : %s\nTimestamp : 20%02X-%02X-%02X %02X:%02X:%02X\nGM9 Version : %s\n",
nds->game_title, nds->game_code, nds->rom_version, cdata_i->cart_id, nds->game_title, nds->game_code, nds->rom_version, cdata_i->cart_id,
(nds->unit_code == 0x2) ? "DSi Enhanced" : (nds->unit_code == 0x3) ? "DSi Exclusive" : "DS", (nds->unit_code == 0x2) ? "DSi Enhanced" : (nds->unit_code == 0x3) ? "DSi Exclusive" : "DS",
init_time.bcd_Y, init_time.bcd_M, init_time.bcd_D, init_time.bcd_Y, init_time.bcd_M, init_time.bcd_D,
init_time.bcd_h, init_time.bcd_m, init_time.bcd_s, init_time.bcd_h, init_time.bcd_m, init_time.bcd_s,
VERSION); VERSION);
@ -320,15 +320,15 @@ u32 ReadCartPrivateHeader(void* buffer, u64 offset, u64 count, CartData* cdata)
} }
u32 ReadCartInfo(u8* buffer, u64 offset, u64 count, CartData* cdata) { u32 ReadCartInfo(u8* buffer, u64 offset, u64 count, CartData* cdata) {
char info[256]; char info[256];
u32 len; u32 len;
GetCartInfoString(info, cdata); GetCartInfoString(info, cdata);
len = strnlen(info, 255); len = strnlen(info, 255);
if (offset >= len) return 0; if (offset >= len) return 0;
if (offset + count > len) count = len - offset; if (offset + count > len) count = len - offset;
memcpy(buffer, info + offset, count); memcpy(buffer, info + offset, count);
return 0; return 0;
} }