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https://github.com/d0k3/GodMode9.git
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Added ARM9 payload launching
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Wolf
d0k3
parent
d9dbf14f8b
commit
af32ca3ac5
7
source/common/chainload.h
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7
source/common/chainload.h
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@ -0,0 +1,7 @@
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#pragma once
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#include "common.h"
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#define PAYLOAD_MAX_SIZE 0xFFFE0
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void Chainload(u8 *source, size_t size);
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52
source/common/chainload.s
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52
source/common/chainload.s
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@ -0,0 +1,52 @@
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@ Wolfvak - 25/01/2017
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@ TODO: ELF launcher
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@ void Chainload(u8 *source, size_t size)
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@ Wrapper around chainload_itcm
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.arm
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.global Chainload
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.type Chainload, %function
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Chainload:
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ldr r2, =0x1FF8100 @ ITCM + 0x100 bytes
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mov r3, r2
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ldr r4, =chainload_itcm
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ldr r5, =chainload_itcm_end
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.copy_chainloader:
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cmp r4, r5
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ldrlt r6, [r4], #4
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strlt r6, [r3], #4
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blt .copy_chainloader
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bx r2 @ Branch to the real chainloader in ITCM
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@ void chainload_itcm(void)
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@ Note: Uses unprotected bootrom functions
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.arm
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.type chainload_itcm, %function
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.align 4
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chainload_itcm:
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mov r2, r1
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ldr r1, =0x23F00000
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mov r4, r1 @ memcpy256 and clean_flush_cache mess with the registers
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ldr r3, =0xFFFF03F0 @ memcpy256(u32 *src, u32 *ddest, size_t size)
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blx r3
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ldr r3, =0xFFFF0830 @ void clean_flush_cache(void)
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blx r3
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mov r3, r4
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mov r0, #0 @ Clear argc
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mov r1, #0 @ Same for argv
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mov r2, #0
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mov lr, #0
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bx r3
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.pool
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chainload_itcm_end:
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@ -2,6 +2,7 @@
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#include "fsutil.h"
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#include "fatmbr.h"
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#include "game.h"
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#include "chainload.h"
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u32 IdentifyFileType(const char* path) {
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const u8 romfs_magic[] = { ROMFS_MAGIC };
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@ -9,9 +10,9 @@ u32 IdentifyFileType(const char* path) {
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u8 header[0x200] __attribute__((aligned(32))); // minimum required size
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size_t fsize = FileGetSize(path);
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char* fname = strrchr(path, '/');
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if (fname == NULL) return 0; // not a proper path
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fname++;
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if (FileGetData(path, header, 0x200, 0) < fsize) return 0;
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char* ext = (fname) ? strrchr(++fname, '.') : NULL;
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if (ext) ext++;
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if (FileGetData(path, header, 0x200, 0) < ((fsize > 0x200) ? 0x200 : fsize)) return 0;
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if (fsize >= 0x200) {
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if ((getbe32(header + 0x100) == 0x4E435344) && (getbe64(header + 0x110) == (u64) 0x0104030301000000) &&
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@ -51,8 +52,12 @@ u32 IdentifyFileType(const char* path) {
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}
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if ((fsize > sizeof(NcchInfoHeader)) &&
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(GetNcchInfoVersion((NcchInfoHeader*) (void*) header)) &&
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(strncasecmp(fname, NCCHINFO_NAME, 32) == 0)) {
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return MISC_NINFO; // ncchinfo.bin file
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fname && (strncasecmp(fname, NCCHINFO_NAME, 32) == 0)) {
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return BIN_NCCHNFO; // ncchinfo.bin file
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#if PAYLOAD_MAX_SIZE <= TEMP_BUFFER_SIZE
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} else if ((fsize <= PAYLOAD_MAX_SIZE) && (strncasecmp(ext, "bin", 4) == 0)) {
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return BIN_LAUNCH; // assume it's an ARM9 payload
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#endif
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}
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return 0;
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@ -2,19 +2,17 @@
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#include "common.h"
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#define IMG_FAT (1<<0)
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#define IMG_NAND (1<<1)
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#define GAME_CIA (1<<2)
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#define GAME_NCSD (1<<3)
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#define GAME_NCCH (1<<4)
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#define GAME_TMD (1<<5)
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#define GAME_EXEFS (1<<6)
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#define GAME_ROMFS (1<<7)
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#define SYS_FIRM (1<<8)
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#define MISC_NINFO (1<<9)
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#define IMG_FAT (1<<0)
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#define IMG_NAND (1<<1)
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#define GAME_CIA (1<<2)
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#define GAME_NCSD (1<<3)
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#define GAME_NCCH (1<<4)
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#define GAME_TMD (1<<5)
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#define GAME_EXEFS (1<<6)
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#define GAME_ROMFS (1<<7)
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#define SYS_FIRM (1<<8)
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#define BIN_NCCHNFO (1<<9)
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#define BIN_LAUNCH (1<<10)
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#define FTYPE_MOUNTABLE (IMG_FAT|IMG_NAND|GAME_CIA|GAME_NCSD|GAME_NCCH|GAME_EXEFS|GAME_ROMFS|SYS_FIRM)
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#define FYTPE_VERIFICABLE (IMG_NAND|GAME_CIA|GAME_NCSD|GAME_NCCH|GAME_TMD|SYS_FIRM)
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@ -22,6 +20,7 @@
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#define FTYPE_BUILDABLE (GAME_NCSD|GAME_NCCH|GAME_TMD)
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#define FTYPE_BUILDABLE_L (FTYPE_BUILDABLE&(GAME_TMD))
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#define FTYPE_RESTORABLE (IMG_NAND)
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#define FTYPE_XORPAD (MISC_NINFO)
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#define FTYPE_XORPAD (BIN_NCCHNFO)
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#define FTYPE_PAYLOAD (BIN_LAUNCH)
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u32 IdentifyFileType(const char* path);
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@ -14,6 +14,7 @@
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#include "vcart.h"
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#include "ncchinfo.h"
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#include "image.h"
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#include "chainload.h"
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#define N_PANES 2
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@ -589,8 +590,9 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
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bool buildable_legit = (filetype & FTYPE_BUILDABLE_L);
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bool restorable = (CheckA9lh() && (filetype & FTYPE_RESTORABLE) && !(drvtype & DRV_SYSNAND));
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bool xorpadable = (filetype & FTYPE_XORPAD);
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bool launchable = ((filetype & FTYPE_PAYLOAD) && (drvtype & DRV_FAT));
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bool special_opt = mountable || verificable || decryptable || decryptable_inplace ||
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buildable || buildable_legit || restorable || xorpadable;
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buildable || buildable_legit || restorable || xorpadable || launchable;
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char pathstr[32 + 1];
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TruncateString(pathstr, curr_entry->path, 32, 8);
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@ -623,7 +625,8 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
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(filetype == GAME_ROMFS) ? "Mount as ROMFS image" :
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(filetype == GAME_TMD) ? "TMD file options..." :
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(filetype == SYS_FIRM) ? "FIRM image options..." :
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(filetype == MISC_NINFO) ? "NCCHinfo options..." : "???";
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(filetype == BIN_NCCHNFO) ? "NCCHinfo options..." :
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(filetype == BIN_LAUNCH) ? "Launch as arm9 payload" : "???";
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optionstr[hexviewer-1] = "Show in Hexeditor";
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optionstr[calcsha-1] = "Calculate SHA-256";
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if (copystd > 0) optionstr[copystd-1] = "Copy to " OUTPUT_PATH;
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@ -698,6 +701,7 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
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int verify = (verificable) ? ++n_opt : -1;
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int xorpad = (xorpadable) ? ++n_opt : -1;
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int xorpad_inplace = (xorpadable) ? ++n_opt : -1;
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int launch = (launchable) ? ++n_opt : -1;
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if (mount > 0) optionstr[mount-1] = "Mount image to drive";
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if (restore > 0) optionstr[restore-1] = "Restore SysNAND (safe)";
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if (decrypt > 0) optionstr[decrypt-1] = "Decrypt file (SD output)";
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@ -707,6 +711,7 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
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if (verify > 0) optionstr[verify-1] = "Verify file";
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if (xorpad > 0) optionstr[xorpad-1] = "Build XORpads (SD output)";
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if (xorpad_inplace > 0) optionstr[xorpad_inplace-1] = "Build XORpads (inplace)";
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if (launch > 0) optionstr[launch-1] = "Launch as ARM9 payload";
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// auto select when there is only one option
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user_select = (n_opt > 1) ? (int) ShowSelectPrompt(n_opt, optionstr, pathstr) : n_opt;
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@ -858,6 +863,14 @@ u32 FileHandlerMenu(char* current_path, u32* cursor, u32* scroll, DirStruct* cur
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*scroll = 0;
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*cursor = 1;
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}
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} else if ((user_select == launch)) {
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size_t payload_size = FileGetSize(curr_entry->path);
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if (ShowPrompt(true, "%s (%dkB)\nLaunch as arm9 payload?", pathstr, payload_size / 1024)) {
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if (FileGetData(curr_entry->path, TEMP_BUFFER, payload_size, 0) == payload_size) {
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Chainload(TEMP_BUFFER, payload_size);
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while(1);
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} // failed load is basically impossible here
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}
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}
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return 1;
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