mirror of
https://github.com/CTCaer/hekate.git
synced 2024-12-23 16:36:03 +00:00
226 lines
6.2 KiB
C
Executable file
226 lines
6.2 KiB
C
Executable file
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (C) 2018 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 "pkg2.h"
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#include "arm64.h"
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#include "heap.h"
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#include "se.h"
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/*#include "gfx.h"
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extern gfx_ctxt_t gfx_ctxt;
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extern gfx_con_t gfx_con;
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#define DPRINTF(...) gfx_printf(&gfx_con, __VA_ARGS__)*/
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#define DPRINTF(...)
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// Include kernel patches here, so we can utilize pkg1 id
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PATCHSET_DEF(_kernel_1_patchset,
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{ 0x3764C, _NOP() }, // Disable SVC verifications
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{ 0x44074, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_2_patchset,
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{ 0x54834, _NOP() }, // Disable SVC verifications
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{ 0x6086C, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_3_patchset,
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{ 0x3BD24, _NOP() }, // Disable SVC verifications
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{ 0x483FC, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_302_patchset,
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{ 0x3BD24, _NOP() }, // Disable SVC verifications
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{ 0x48414, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_4_patchset,
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{ 0x41EB4, _NOP() }, // Disable SVC verifications
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{ 0x4EBFC, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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PATCHSET_DEF(_kernel_5_patchset,
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{ 0x45E6C, _NOP() }, // Disable SVC verifications
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{ 0x5513C, _MOVZX(8, 1, 0) } // Enable Debug Patch
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);
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static const pkg2_kernel_id_t _pkg2_kernel_ids[] = {
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{ 0x427f2647, _kernel_1_patchset }, //1.0.0
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{ 0xae19cf1b, _kernel_2_patchset }, //2.0.0 - 2.3.0
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{ 0x73c9e274, _kernel_3_patchset }, //3.0.0 - 3.0.1
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{ 0xe0e8cdc4, _kernel_302_patchset }, //3.0.2
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{ 0x485d0157, _kernel_4_patchset }, //4.0.0 - 4.1.0
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{ 0xf3c363f2, _kernel_5_patchset }, //5.0.0 - 5.1.0
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{ 0, 0 } //End.
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};
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const pkg2_kernel_id_t *pkg2_identify(u32 id)
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{
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for (u32 i = 0; _pkg2_kernel_ids[i].crc32c_id; i++)
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if (id == _pkg2_kernel_ids[i].crc32c_id)
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return &_pkg2_kernel_ids[i];
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return NULL;
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}
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static u32 _pkg2_calc_kip1_size(pkg2_kip1_t *kip1)
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{
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u32 size = sizeof(pkg2_kip1_t);
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for (u32 j = 0; j < KIP1_NUM_SECTIONS; j++)
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size += kip1->sections[j].size_comp;
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return size;
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}
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void pkg2_parse_kips(link_t *info, pkg2_hdr_t *pkg2)
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{
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u8 *ptr = pkg2->data + pkg2->sec_size[PKG2_SEC_KERNEL];
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pkg2_ini1_t *ini1 = (pkg2_ini1_t *)ptr;
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ptr += sizeof(pkg2_ini1_t);
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for (u32 i = 0; i < ini1->num_procs; i++)
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{
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pkg2_kip1_t *kip1 = (pkg2_kip1_t *)ptr;
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pkg2_kip1_info_t *ki = (pkg2_kip1_info_t *)malloc(sizeof(pkg2_kip1_info_t));
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ki->kip1 = kip1;
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ki->size = _pkg2_calc_kip1_size(kip1);
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list_append(info, &ki->link);
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ptr += ki->size;
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DPRINTF(" kip1 %d:%s @ %08X (%08X)\n", i, kip1->name, (u32)kip1, ki->size);
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}
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}
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int pkg2_has_kip(link_t *info, u64 tid)
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{
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LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, info, link)
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if(ki->kip1->tid == tid)
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return 1;
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return 0;
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}
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void pkg2_replace_kip(link_t *info, u64 tid, pkg2_kip1_t *kip1)
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{
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LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, info, link)
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if (ki->kip1->tid == tid)
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{
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ki->kip1 = kip1;
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ki->size = _pkg2_calc_kip1_size(kip1);
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DPRINTF("replaced kip (new size %08X)\n", ki->size);
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return;
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}
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}
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void pkg2_add_kip(link_t *info, pkg2_kip1_t *kip1)
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{
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pkg2_kip1_info_t *ki = (pkg2_kip1_info_t *)malloc(sizeof(pkg2_kip1_info_t));
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ki->kip1 = kip1;
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ki->size = _pkg2_calc_kip1_size(kip1);
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DPRINTF("added kip (size %08X)\n", ki->size);
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list_append(info, &ki->link);
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}
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void pkg2_merge_kip(link_t *info, pkg2_kip1_t *kip1)
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{
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if (pkg2_has_kip(info, kip1->tid))
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pkg2_replace_kip(info, kip1->tid, kip1);
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else
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pkg2_add_kip(info, kip1);
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}
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pkg2_hdr_t *pkg2_decrypt(void *data)
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{
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u8 *pdata = (u8 *)data;
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//Skip signature.
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pdata += 0x100;
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pkg2_hdr_t *hdr = (pkg2_hdr_t *)pdata;
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//Skip header.
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pdata += sizeof(pkg2_hdr_t);
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//Decrypt header.
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se_aes_crypt_ctr(8, hdr, sizeof(pkg2_hdr_t), hdr, sizeof(pkg2_hdr_t), hdr);
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//gfx_hexdump(&gfx_con, (u32)hdr, hdr, 0x100);
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if (hdr->magic != PKG2_MAGIC)
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return NULL;
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for (u32 i = 0; i < 4; i++)
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{
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DPRINTF("sec %d has size %08X\n", i, hdr->sec_size[i]);
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if (!hdr->sec_size[i])
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continue;
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se_aes_crypt_ctr(8, pdata, hdr->sec_size[i], pdata, hdr->sec_size[i], &hdr->sec_ctr[i * 0x10]);
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//gfx_hexdump(&gfx_con, (u32)pdata, pdata, 0x100);
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pdata += hdr->sec_size[i];
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}
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return hdr;
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}
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void pkg2_build_encrypt(void *dst, void *kernel, u32 kernel_size, link_t *kips_info)
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{
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u8 *pdst = (u8 *)dst;
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//Signature.
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memset(pdst, 0, 0x100);
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pdst += 0x100;
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//Header.
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pkg2_hdr_t *hdr = (pkg2_hdr_t *)pdst;
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memset(hdr, 0, sizeof(pkg2_hdr_t));
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pdst += sizeof(pkg2_hdr_t);
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hdr->magic = PKG2_MAGIC;
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hdr->base = 0x10000000;
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DPRINTF("kernel @ %08X (%08X)\n", (u32)kernel, kernel_size);
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//Kernel.
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memcpy(pdst, kernel, kernel_size);
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hdr->sec_size[PKG2_SEC_KERNEL] = kernel_size;
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hdr->sec_off[PKG2_SEC_KERNEL] = 0x10000000;
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se_aes_crypt_ctr(8, pdst, kernel_size, pdst, kernel_size, &hdr->sec_ctr[PKG2_SEC_KERNEL * 0x10]);
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pdst += kernel_size;
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DPRINTF("kernel encrypted\n");
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//INI1.
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u32 ini1_size = sizeof(pkg2_ini1_t);
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pkg2_ini1_t *ini1 = (pkg2_ini1_t *)pdst;
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memset(ini1, 0, sizeof(pkg2_ini1_t));
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ini1->magic = INI1_MAGIC;
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pdst += sizeof(pkg2_ini1_t);
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LIST_FOREACH_ENTRY(pkg2_kip1_info_t, ki, kips_info, link)
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{
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DPRINTF("adding kip1 '%s' @ %08X (%08X)\n", ki->kip1->name, (u32)ki->kip1, ki->size);
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memcpy(pdst, ki->kip1, ki->size);
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pdst += ki->size;
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ini1_size += ki->size;
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ini1->num_procs++;
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}
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ini1->size = ini1_size;
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hdr->sec_size[PKG2_SEC_INI1] = ini1_size;
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hdr->sec_off[PKG2_SEC_INI1] = 0x14080000;
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se_aes_crypt_ctr(8, ini1, ini1_size, ini1, ini1_size, &hdr->sec_ctr[PKG2_SEC_INI1 * 0x10]);
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DPRINTF("INI1 encrypted\n");
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//Encrypt header.
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*(u32 *)hdr->ctr = 0x100 + sizeof(pkg2_hdr_t) + kernel_size + ini1_size;
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se_aes_crypt_ctr(8, hdr, sizeof(pkg2_hdr_t), hdr, sizeof(pkg2_hdr_t), hdr);
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memset(hdr->ctr, 0 , 0x10);
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*(u32 *)hdr->ctr = 0x100 + sizeof(pkg2_hdr_t) + kernel_size + ini1_size;
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}
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