mirror of
https://github.com/CTCaer/hekate.git
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160 lines
3.6 KiB
C
160 lines
3.6 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018-2024 CTCaer
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* Copyright (c) 2018 Reisyukaku
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <bdk.h>
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#include "fe_tools.h"
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#include "../config.h"
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#include "../gfx/tui.h"
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#include <libs/fatfs/ff.h>
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extern boot_cfg_t b_cfg;
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extern hekate_config h_cfg;
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#pragma GCC push_options
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#pragma GCC optimize ("Os")
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static void _toggle_autorcm(bool enable)
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{
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gfx_clear_partial_grey(0x1B, 0, 1256);
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gfx_con_setpos(0, 0);
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int i, sect = 0;
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u8 corr_mod0, mod1;
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u8 *tempbuf = (u8 *)malloc(0x200);
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// Get the correct RSA modulus byte masks.
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nx_emmc_get_autorcm_masks(&corr_mod0, &mod1);
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// Iterate BCTs.
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for (i = 0; i < 4; i++)
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{
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sect = (0x200 + (0x4000 * i)) / EMMC_BLOCKSIZE;
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sdmmc_storage_read(&emmc_storage, sect, 1, tempbuf);
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// Check if 2nd byte of modulus is correct.
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if (tempbuf[0x11] != mod1)
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continue;
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if (enable)
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tempbuf[0x10] = 0;
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else
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tempbuf[0x10] = corr_mod0;
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sdmmc_storage_write(&emmc_storage, sect, 1, tempbuf);
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}
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free(tempbuf);
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if (enable)
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gfx_printf("%kAutoRCM mode enabled!%k", TXT_CLR_ORANGE, TXT_CLR_DEFAULT);
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else
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gfx_printf("%kAutoRCM mode disabled!%k", TXT_CLR_GREENISH, TXT_CLR_DEFAULT);
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gfx_printf("\n\nPress any key...\n");
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btn_wait();
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}
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static void _enable_autorcm() { _toggle_autorcm(true); }
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static void _disable_autorcm() { _toggle_autorcm(false); }
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bool tools_autorcm_enabled()
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{
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u8 mod0, mod1;
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u8 *tempbuf = (u8 *)malloc(0x200);
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// Get the correct RSA modulus byte masks.
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nx_emmc_get_autorcm_masks(&mod0, &mod1);
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// Get 1st RSA modulus.
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emmc_set_partition(EMMC_BOOT0);
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sdmmc_storage_read(&emmc_storage, 0x200 / EMMC_BLOCKSIZE, 1, tempbuf);
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// Check if 2nd byte of modulus is correct.
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bool enabled = false;
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if (tempbuf[0x11] == mod1)
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if (tempbuf[0x10] != mod0)
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enabled = true;
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free(tempbuf);
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return enabled;
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}
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void menu_autorcm()
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{
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gfx_clear_grey(0x1B);
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gfx_con_setpos(0, 0);
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if (h_cfg.rcm_patched)
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{
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WPRINTF("This device is RCM patched and the\nfunction is disabled to avoid BRICKS!\n");
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btn_wait();
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return;
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}
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if (!emmc_initialize(false))
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{
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EPRINTF("Failed to init eMMC.");
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btn_wait();
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return;
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}
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// Do a simple check on the main BCT.
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bool enabled = tools_autorcm_enabled();
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// Create AutoRCM menu.
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ment_t *ments = (ment_t *)malloc(sizeof(ment_t) * 6);
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ments[0].type = MENT_BACK;
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ments[0].caption = "Back";
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ments[1].type = MENT_CHGLINE;
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ments[2].type = MENT_CAPTION;
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ments[3].type = MENT_CHGLINE;
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if (!enabled)
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{
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ments[2].caption = "Status: Disabled!";
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ments[2].color = TXT_CLR_GREENISH;
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ments[4].caption = "Enable AutoRCM";
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ments[4].handler = _enable_autorcm;
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}
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else
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{
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ments[2].caption = "Status: Enabled!";
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ments[2].color = TXT_CLR_ORANGE;
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ments[4].caption = "Disable AutoRCM";
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ments[4].handler = _disable_autorcm;
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}
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ments[4].type = MENT_HDLR_RE;
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ments[4].data = NULL;
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memset(&ments[5], 0, sizeof(ment_t));
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menu_t menu = {ments, "This corrupts BOOT0!", 0, 0};
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tui_do_menu(&menu);
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emmc_end();
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}
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#pragma GCC pop_options
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