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Properly handle HWCAL0.dat / HWCAL1.dat

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These files are system unique. This commit fixes the write permission
system and includes both files in the essential backup.
This commit is contained in:
d0k3 2017-08-04 16:56:06 +02:00
parent 24a9b711e8
commit 3f87c42334
3 changed files with 29 additions and 13 deletions
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3
source/filesys/fsperm.c
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@ -8,7 +8,8 @@
#define PATH_SYS_LVL1 "S:/twln.bin", "S:/twlp.bin"
#define PATH_SYS_LVL2 "1:/rw/sys/LocalFriendCodeSeed_B", "1:/rw/sys/LocalFriendCodeSeed_A", \
"1:/rw/sys/SecureInfo_A", "1:/rw/sys/SecureInfo_B", \
"1:/private/movable.sed", "S:/ctrnand_fat.bin", "S:/ctrnand_full.bin"
"1:/private/movable.sed", "1:/ro/sys/HWCAL0.dat", "1:/ro/sys/HWCAL1.dat", \
"S:/ctrnand_fat.bin", "S:/ctrnand_full.bin"
#define PATH_SYS_LVL3 "S:/firm0.bin", "S:/firm1.bin", "S:/nand.bin", "S:/nand_minsize.bin", "S:/nand_hdr.bin", \
"S:/sector0x96.bin", "S:/twlmbr.bin"
#define PATH_EMU_LVL1 "E:/ctrnand_fat.bin", "E:/ctrnand_full.bin", "E:/nand.bin", "E:/nand_minsize.bin", "E:/nand_hdr.bin"

13
source/nand/essentials.h
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@ -10,6 +10,9 @@
// magic number for essential backup
#define ESSENTIAL_MAGIC 'n', 'a', 'n', 'd', '_', 'h', 'd', 'r', 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00
// size of /ro/sys/HWCAL0.dat and /ro/sys/HWCAL1.dat
#define SIZE_HWCAL 0x9D0
// /rw/sys/LocalFriendCodeSeed_B (/_A) file
// see: http://3dbrew.org/wiki/Nandrw/sys/LocalFriendCodeSeed_B
typedef struct {
@ -44,13 +47,17 @@ typedef struct {
ExeFsHeader header;
u8 nand_hdr[0x200];
SecureInfo secinfo;
u8 padding_secinfo[0x200 - sizeof(SecureInfo)];
u8 padding_secinfo[0x200 - (sizeof(SecureInfo)%0x200)];
MovableSed movable;
u8 padding_movable[0x200 - sizeof(MovableSed)];
u8 padding_movable[0x200 - (sizeof(MovableSed)%0x200)];
LocalFriendCodeSeed frndseed;
u8 padding_frndseed[0x200 - sizeof(LocalFriendCodeSeed)];
u8 padding_frndseed[0x200 - (sizeof(LocalFriendCodeSeed)%0x200)];
u8 nand_cid[0x10];
u8 padding_nand_cid[0x200 - 0x10];
u8 otp[0x100];
u8 padding_otp[0x200 - 0x100];
u8 hwcal0[SIZE_HWCAL];
u8 padding_hwcal0[0x200 - (SIZE_HWCAL%0x200)];
u8 hwcal1[SIZE_HWCAL];
u8 padding_hwcal1[0x200 - (SIZE_HWCAL%0x200)];
} __attribute__((packed)) EssentialBackup;

26
source/nand/nandutil.c
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@ -27,12 +27,14 @@ u32 ReadNandFile(FIL* file, void* buffer, u32 sector, u32 count, u32 keyslot) {
u32 BuildEssentialBackup(const char* path, EssentialBackup* essential) {
// prepare essential backup struct
ExeFsFileHeader filelist[] = {
{ "nand_hdr", 0x000, 0x200 },
{ "secinfo" , 0x200, 0x111 },
{ "movable" , 0x400, 0x140 },
{ "frndseed", 0x600, 0x110 },
{ "nand_cid", 0x800, 0x010 },
{ "otp" , 0xA00, 0x100 }
{ "nand_hdr", 0x0000, 0x200 },
{ "secinfo" , 0x0200, 0x111 },
{ "movable" , 0x0400, 0x140 },
{ "frndseed", 0x0600, 0x110 },
{ "nand_cid", 0x0800, 0x010 },
{ "otp" , 0x0A00, 0x100 },
{ "hwcal0" , 0x0C00, 0x9D0 },
{ "hwcal1" , 0x1600, 0x9D0 }
};
memset(essential, 0, sizeof(EssentialBackup));
memcpy(essential, filelist, sizeof(filelist));
@ -59,16 +61,22 @@ u32 BuildEssentialBackup(const char* path, EssentialBackup* essential) {
return 1;
}
// HWCAL0.dat / HWCAL1.dat
if ((fvx_qread("7:/ro/sys/HWCAL0.dat", &(essential->hwcal0), 0, 0x1000, (UINT*) &(files[6].size)) != FR_OK) ||
(fvx_qread("7:/ro/sys/HWCAL1.dat", &(essential->hwcal1), 0, 0x1000, (UINT*) &(files[7].size)) != FR_OK)) {
memset(&(filelist[6]), 0, 2 * sizeof(ExeFsFileHeader));
}
// mount original file
InitImgFS(path_bak);
// fill nand cid / otp hash
if (GetNandCid(&(essential->nand_cid)) != 0) return 1;
if (!IS_UNLOCKED) memset(&(filelist[5]), 0, sizeof(ExeFsFileHeader));
if (!IS_UNLOCKED) memset(&(filelist[5]), 0, 3 * sizeof(ExeFsFileHeader));
else memcpy(&(essential->otp), (u8*) 0x10012000, 0x100);
// calculate hashes
for (u32 i = 0; i < (IS_UNLOCKED ? 6 : 5); i++)
for (u32 i = 0; i < 8 && *(filelist[i].name); i++)
sha_quick(essential->header.hashes[9-i],
((u8*) essential) + files[i].offset + sizeof(ExeFsHeader),
files[i].size, SHA256_MODE);