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Add (Broken) payload launching

This commit is contained in:
Such Meme, Many Skill 2019-08-17 01:08:00 +02:00
parent 819d08415d
commit ada4fd2c7f
5 changed files with 113 additions and 6 deletions

View file

@ -0,0 +1,81 @@
#include "external_utils.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include "../gfx/di.h"
#include "../gfx/gfx.h"
#include "../utils/btn.h"
#include "../utils/util.h"
#include "utils.h"
#include "../libs/fatfs/ff.h"
#include "../storage/sdmmc.h"
#include "graphics.h"
#include "../soc/hw_init.h"
#include "../mem/emc.h"
#include "../mem/sdram.h"
#include "../soc/t210.h"
extern void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size);
extern boot_cfg_t b_cfg;
extern bool sd_mount();
extern void sd_unmount();
int launch_payload(char *path, int update){
if (!update)
gfx_clear_grey(0x1B);
gfx_con_setpos(0, 0);
if (!path)
return 1;
if (sd_mount()){
FIL fp;
if (f_open(&fp, path, FA_READ)){
return 2;
}
// Read and copy the payload to our chosen address
void *buf;
u32 size = f_size(&fp);
if (size < 0x30000)
buf = (void *)RCM_PAYLOAD_ADDR;
else
buf = (void *)COREBOOT_ADDR;
if (f_read(&fp, buf, size, NULL)){
f_close(&fp);
return 3;
}
f_close(&fp);
free(path);
if (size < 0x30000){
if (update)
memcpy((u8 *)(RCM_PAYLOAD_ADDR + PATCHED_RELOC_SZ), &b_cfg, sizeof(boot_cfg_t)); // Transfer boot cfg.
else
reloc_patcher(PATCHED_RELOC_ENTRY, EXT_PAYLOAD_ADDR, ALIGN(size, 0x10));
reconfig_hw_workaround(false, byte_swap_32(*(u32 *)(buf + size - sizeof(u32))));
}
else {
reloc_patcher(PATCHED_RELOC_ENTRY, EXT_PAYLOAD_ADDR, 0x7000);
reconfig_hw_workaround(true, 0);
}
void (*ext_payload_ptr)() = (void *)EXT_PAYLOAD_ADDR;
void (*update_ptr)() = (void *)RCM_PAYLOAD_ADDR;
msleep(100);
// Launch our payload.
if (!update)
(*ext_payload_ptr)();
else {
EMC(EMC_SCRATCH0) |= EMC_HEKA_UPD;
(*update_ptr)();
}
}
return 4;
}

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@ -0,0 +1,15 @@
#pragma once
#define RELOC_META_OFF 0x7C
#define PATCHED_RELOC_SZ 0x94
#define PATCHED_RELOC_STACK 0x40007000
#define PATCHED_RELOC_ENTRY 0x40010000
#define EXT_PAYLOAD_ADDR 0xC03C0000
#define RCM_PAYLOAD_ADDR (EXT_PAYLOAD_ADDR + ALIGN(PATCHED_RELOC_SZ, 0x10))
#define COREBOOT_ADDR (0xD0000000 - 0x100000)
#define CBFS_DRAM_EN_ADDR 0x4003e000
#define CBFS_DRAM_MAGIC 0x4452414D // "DRAM"
#define EMC_BASE 0x7001B000
#define EMC(off) _REG(EMC_BASE, off)
int launch_payload(char *path, int update);

View file

@ -7,20 +7,28 @@
#include "../libs/fatfs/ff.h"
#include "../storage/sdmmc.h"
#include "graphics.h"
#include "external_utils.h"
int _openfilemenu(const char *path, char *clipboardpath){
int _openfilemenu(char *path, char *clipboardpath){
meme_clearscreen();
FILINFO fno;
f_stat(path, &fno);
char *options[4];
char *options[5];
int res = 0;
int mres = -1;
int ret = -1;
int i = 4;
bool payload = false;
addchartoarray("Back", options, 0);
addchartoarray("Copy to clipboard", options, 1);
addchartoarray("Move to clipboard", options, 2);
addchartoarray("Delete file", options, 3);
if (strstr(path, ".bin") != NULL){
addchartoarray("Launch payload", options, i);
payload = true;
i++;
}
gfx_printf("%kPath: %s%k\n\n", COLOR_GREEN, path, COLOR_WHITE);
@ -29,8 +37,10 @@ int _openfilemenu(const char *path, char *clipboardpath){
gfx_printf("Size: %s", size);
res = gfx_menulist(160, options, 4);
res = gfx_menulist(160, options, i);
switch(res){
case 1:
break;
case 2:
ret = 0;
strcpy(clipboardpath, path);
@ -44,7 +54,7 @@ int _openfilemenu(const char *path, char *clipboardpath){
if (mres == 0) f_unlink(path);
break;
default:
break;
if (payload) launch_payload(path, 0);
}
meme_clearscreen();

View file

@ -10,6 +10,7 @@
#include "../storage/sdmmc.h"
#include "graphics.h"
void utils_gfx_init(){
display_backlight_brightness(100, 1000);
gfx_clear_grey(0x1B);
@ -28,7 +29,7 @@ void addpartpath(char *path, char *add){
strcat(path, add);
}
void return_readable_byte_amounts(int size, char *in){
void return_readable_byte_amounts(unsigned long int size, char *in){
char type[3];
unsigned long int sizetemp = size;
int muhbytes = 0;

View file

@ -15,5 +15,5 @@ int readfolder(char *items[], unsigned int *muhbits, const char *path);
int copy(const char *src, const char *dst);
void addchartoarray(char *add, char *items[], int spot);
int copywithpath(const char *src, const char *dstpath, int mode);
void return_readable_byte_amounts(int size, char *in);
void return_readable_byte_amounts(unsigned long int size, char *in);
int getfilesize(const char *path);