mirror of
https://github.com/CTCaer/hekate.git
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0ddc1c71a8
- Make debugmode for exosphere mandatory - Support dev RSA modulus for warmboot - Fix a critical bug where it allowed free() to be used on a non-heap address. - Better the makefile
118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/*
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* Copyright (C) 2018-2019 CTCaer
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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 "hos.h"
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#include "../mem/heap.h"
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#include "../soc/fuse.h"
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#include "../storage/sdmmc.h"
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#include "../utils/types.h"
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typedef struct _exo_cfg_t
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{
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vu32 magic;
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vu32 fwno;
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vu32 flags;
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vu32 rsvd;
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} exo_cfg_t;
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typedef struct _atm_meta_t
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{
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uint32_t magic;
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uint32_t fwno;
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} wb_cfg_t;
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#define ATM_WB_HEADER_OFF 0x244
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#define ATM_WB_MAGIC 0x30544257
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// Exosphère mailbox defines.
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#define EXO_CFG_DEPR_ADDR 0x40002E40 // Deprecated.
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#define EXO_CFG_ADDR 0x8000F000
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#define EXO_MAGIC_DEPR_VAL 0x31434258
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#define EXO_MAGIC_VAL 0x304F5845
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#define EXO_FLAG_620_KGN (1 << 0)
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#define EXO_FLAG_DBG_PRIV (1 << 1)
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#define EXO_FLAG_DBG_USER (1 << 2)
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void config_exosphere(const char *id, u32 kb, void *warmboot, void *pkg1)
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{
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u32 exoFwNo = 0;
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u32 exoFlags = 0;
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volatile exo_cfg_t *exo_cfg_depr = (exo_cfg_t *)EXO_CFG_DEPR_ADDR;
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volatile exo_cfg_t *exo_cfg = (exo_cfg_t *)EXO_CFG_ADDR;
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switch (kb)
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{
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case KB_FIRMWARE_VERSION_100_200:
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if (!strcmp(id, "20161121183008"))
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exoFwNo = 1;
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else
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exoFwNo = 2;
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break;
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case KB_FIRMWARE_VERSION_300:
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exoFwNo = 3;
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break;
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default:
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exoFwNo = kb + 1;
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break;
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}
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if (kb == KB_FIRMWARE_VERSION_620)
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exoFlags |= EXO_FLAG_620_KGN;
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// To avoid problems, make private debug mode always on.
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exoFlags |= EXO_FLAG_DBG_PRIV;
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// Set mailbox values.
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exo_cfg_depr->magic = EXO_MAGIC_VAL;
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exo_cfg->magic = EXO_MAGIC_VAL;
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exo_cfg_depr->fwno = exoFwNo;
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exo_cfg->fwno = exoFwNo;
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exo_cfg_depr->flags = exoFlags;
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exo_cfg->flags = exoFlags;
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// If warmboot is lp0fw, add in RSA modulus.
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volatile wb_cfg_t *wb_cfg = (wb_cfg_t *)(warmboot + ATM_WB_HEADER_OFF);
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if (wb_cfg->magic == ATM_WB_MAGIC)
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{
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wb_cfg->fwno = exoFwNo;
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sdmmc_storage_t storage;
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sdmmc_t sdmmc;
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// Set warmboot binary rsa modulus.
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u8 *rsa_mod = (u8 *)malloc(512);
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sdmmc_storage_init_mmc(&storage, &sdmmc, SDMMC_4, SDMMC_BUS_WIDTH_8, 4);
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sdmmc_storage_set_mmc_partition(&storage, 1);
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sdmmc_storage_read(&storage, 1, 1, rsa_mod);
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sdmmc_storage_end(&storage);
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// Patch AutoRCM out.
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if ((fuse_read_odm(4) & 3) != 3)
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rsa_mod[0x10] = 0xF7;
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else
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rsa_mod[0x10] = 0x37;
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memcpy(warmboot + 0x10, rsa_mod + 0x10, 0x100);
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}
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}
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