118 lines
4.5 KiB
C
Executable File
118 lines
4.5 KiB
C
Executable File
#include "installer.h"
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#include "memory.h"
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#include "fs.h"
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#include "crypto.h"
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#include "draw.h"
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#include "utils.h"
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#include "fatfs/sdmmc/sdmmc.h"
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static const u8 sectorHash[0x20] = {
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0x82, 0xF2, 0x73, 0x0D, 0x2C, 0x2D, 0xA3, 0xF3, 0x01, 0x65, 0xF9, 0x87, 0xFD, 0xCC, 0xAC, 0x5C,
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0xBA, 0xB2, 0x4B, 0x4E, 0x5F, 0x65, 0xC9, 0x81, 0xCD, 0x7B, 0xE6, 0xF4, 0x38, 0xE6, 0xD9, 0xD3
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};
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static const u8 firm0Hash[0x20] = {
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0xD7, 0xBE, 0x76, 0xE1, 0x81, 0x3F, 0x39, 0x8D, 0xCE, 0xA8, 0x55, 0x72, 0xD0, 0xC0, 0x58, 0xF7,
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0x95, 0x47, 0x61, 0xA1, 0xD5, 0xEA, 0x03, 0xB5, 0xEB, 0x50, 0x47, 0xAC, 0x63, 0xAC, 0x5D, 0x6B
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};
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static const u8 firm1Hash[0x20] = {
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0xD2, 0x53, 0xC1, 0xCC, 0x0A, 0x5F, 0xFA, 0xC6, 0xB3, 0x83, 0xDA, 0xC1, 0x82, 0x7C, 0xFB, 0x3B,
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0x2D, 0x3D, 0x56, 0x6C, 0x6A, 0x1A, 0x8E, 0x52, 0x54, 0xE3, 0x89, 0xC2, 0x95, 0x06, 0x23, 0xE5
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};
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static void installStage2(u32 mode, int pos_y){
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//Read stage2
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char *path = "a9lh/payload_stage2.bin";
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u32 size = fileSize(path);
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if(!size || size > MAXSTAGE2SIZE)
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shutdown(1, pos_y, "Error: stage2 doesn't exist or exceeds max size");
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memset((u8 *)STAGE2OFFSET, 0, MAXSTAGE2SIZE);
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fileRead((u8 *)STAGE2OFFSET, path, size);
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if(mode) return;
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sdmmc_nand_writesectors(0x5C000, 0x20, (vu8 *)STAGE2OFFSET);
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shutdown(1, pos_y, "Success!");
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}
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void installer(void){
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drawString("Safe A9LH Installer v1.0", 10, 10, 0x0000FF);
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int pos_y = drawString("Thanks to delebile, #cakey and StandardBus", 10, 40, 0xFFFFFF);
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pos_y = drawString("Press SELECT for a full install", 10, pos_y + SPACING_VERT, 0xFFFFFF);
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pos_y = drawString("Press START to only update stage2", 10, pos_y, 0xFFFFFF);
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pos_y = drawString("Press any other button to shutdown", 10, pos_y, 0xFFFFFF);
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u16 pressed = waitInput();
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if(pressed == BUTTON_START) installStage2(0, pos_y);
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if(pressed != BUTTON_SELECT) shutdown(0, 0, NULL);
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//Determine if booting with A9LH
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u32 a9lhBoot = (PDN_SPI_CNT == 0x0) ? 1 : 0;
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//Detect the console being used
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u32 console = (PDN_MPCORE_CFG == 1) ? 0 : 1;
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//Calculate the CTR for the 3DS partitions
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getNandCTR();
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//Test that the CTR is correct
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readFirm0((u8 *)TEMPOFFSET, 0x200);
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if(memcmp((void *)TEMPOFFSET, "FIRM", 4) != 0)
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shutdown(1, pos_y, "Error: couldn't setup NAND FIRM encryption");
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//Read OTP
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const char *path = "a9lh/otp.bin";
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if(fileSize(path) != 256)
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shutdown(1, pos_y, "Error: otp.bin doesn't exist or has a wrong size");
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fileRead((u8 *)OTPOFFSET, path, 256);
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setupKeyslot0x11((u8 *)OTPOFFSET);
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if((a9lhBoot && !testOtp(0)) || (!a9lhBoot && console && !testOtp(1)))
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shutdown(1, pos_y, "Error: your OTP is invalid or corrupted");
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//Read decrypted key sector
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path = "a9lh/secret_sector.bin";
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if(fileSize(path) != 0x200)
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shutdown(1, pos_y, "Error: secret_sector.bin doesn't exist or has a wrong size");
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fileRead((u8 *)SECTOROFFSET, path, 0x200);
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if(!verifyHash((u8 *)SECTOROFFSET, 0x200, sectorHash))
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shutdown(1, pos_y, "Error: secret_sector is invalid");
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//Generate and encrypt a per-console A9LH key sector
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generateSector((void *)SECTOROFFSET);
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//Read FIRM0
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path = "a9lh/firm0.bin";
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u32 firm0Size = fileSize(path);
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if(!firm0Size)
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shutdown(1, pos_y, "Error: firm0.bin doesn't exist");
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fileRead((u8 *)FIRM0OFFSET, path, firm0Size);
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if(!verifyHash((u8 *)FIRM0OFFSET, firm0Size, firm0Hash))
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shutdown(1, pos_y, "Error: firmo is invalid");
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//Read FIRM1
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path = "a9lh/firm1.bin";
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u32 firm1Size = fileSize(path);
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if(!firm1Size)
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shutdown(1, pos_y, "Error: firm1.bin doesn't exist");
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fileRead((u8 *)FIRM1OFFSET, path, firm1Size);
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if(!verifyHash((u8 *)FIRM1OFFSET, firm1Size, firm1Hash))
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shutdown(1, pos_y, "Error: firm1 is invalid");
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//Inject stage1
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path = "a9lh/payload_stage1.bin";
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u32 size = fileSize(path);
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if(!size || size > MAXSTAGE1SIZE)
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shutdown(1, pos_y, "Error: stage1 doesn't exist or exceeds max size");
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fileRead((u8 *)STAGE1OFFSET, path, size);
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installStage2(1, pos_y);
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pos_y = drawString("All checks passed, installing...", 10, pos_y + SPACING_VERT, 0xFFFFFF);
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//Point of no return, install stuff in the safest order
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sdmmc_nand_writesectors(0x5C000, 0x20, (vu8 *)STAGE2OFFSET);
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writeFirm((u8 *)FIRM1OFFSET, 1, firm1Size);
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writeFirm((u8 *)FIRM0OFFSET, 0, firm0Size);
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sdmmc_nand_writesectors(0x96, 0x1, (vu8 *)SECTOROFFSET);
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shutdown(1, pos_y, "Success!");
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} |