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Add FSS0 support

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This commit is contained in:
shchmue 2020-05-18 15:52:19 -06:00
parent 64d7e5cebd
commit 4a69ea1922
3 changed files with 68 additions and 50 deletions
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27
source/hos/fss.c
View file

@ -79,31 +79,6 @@ typedef struct _fss_content_t
char name[0x10];
} fss_content_t;
static void _update_r2p(const char *path)
{
char *r2p_path = malloc(256);
u32 path_len = strlen(path);
strcpy(r2p_path, path);
while(path_len)
{
if ((r2p_path[path_len - 1] == '/') || (r2p_path[path_len - 1] == 0x5C))
{
r2p_path[path_len] = 0;
strcat(r2p_path, "reboot_payload.bin");
u8 *r2p_payload = sd_file_read(r2p_path, NULL);
is_ipl_updated(r2p_payload, r2p_path, h_cfg.updater2p ? true : false);
free(r2p_payload);
break;
}
path_len--;
}
free(r2p_path);
}
int parse_fss(launch_ctxt_t *ctxt, const char *path, fss0_sept_t *sept_ctxt)
{
FIL fp;
@ -224,8 +199,6 @@ out:
gfx_printf("Done!\n");
f_close(&fp);
_update_r2p(path);
return (!sept_ctxt ? 1 : sept_used);
}

81
source/hos/sept.c
View file

@ -17,7 +17,9 @@
#include <string.h>
#include "sept.h"
#include "../config/ini.h"
#include "../gfx/di.h"
#include "../hos/fss.h"
#include "../hos/hos.h"
#include "../libs/fatfs/ff.h"
#include "../mem/heap.h"
@ -28,6 +30,7 @@
#include "../storage/nx_sd.h"
#include "../storage/sdmmc.h"
#include "../utils/btn.h"
#include "../utils/list.h"
#include "../utils/types.h"
#include "../gfx/gfx.h"
@ -65,42 +68,76 @@ extern void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size);
int reboot_to_sept(const u8 *tsec_fw, const u32 tsec_size, const u32 kb)
{
FIL fp;
bool fss0_sept_used = false;
// Copy warmboot reboot code and TSEC fw.
memcpy((u8 *)(SEPT_PK1T_ADDR - WB_RST_SIZE), (u8 *)warmboot_reboot, sizeof(warmboot_reboot));
memcpy((void *)SEPT_PK1T_ADDR, tsec_fw, tsec_size);
*(vu32 *)SEPT_TCSZ_ADDR = tsec_size;
// Copy sept-primary.
if (f_open(&fp, "sd:/sept/sept-primary.bin", FA_READ))
goto error;
LIST_INIT(ini_sections);
if (ini_parse(&ini_sections, "bootloader/hekate_ipl.ini", false))
{
bool found = false;
LIST_FOREACH_ENTRY(ini_sec_t, ini_sec, &ini_sections, link)
{
// Only parse non config sections.
if (ini_sec->type == INI_CHOICE && strcmp(ini_sec->name, "config"))
{
LIST_FOREACH_ENTRY(ini_kv_t, kv, &ini_sec->kvs, link)
{
if (!strcmp("fss0", kv->key))
{
fss0_sept_t sept_ctxt;
sept_ctxt.kb = kb;
sept_ctxt.sept_primary = (void *)SEPT_STG1_ADDR;
sept_ctxt.sept_secondary = (void *)SEPT_STG2_ADDR;
fss0_sept_used = parse_fss(NULL, kv->val, &sept_ctxt);
if (f_read(&fp, (u8 *)SEPT_STG1_ADDR, f_size(&fp), NULL))
{
f_close(&fp);
goto error;
found = true;
break;
}
}
}
if (found)
break;
}
}
f_close(&fp);
// Copy sept-secondary.
if (kb < KB_FIRMWARE_VERSION_810)
if (!fss0_sept_used)
{
if (f_open(&fp, "sd:/sept/sept-secondary_00.enc", FA_READ))
if (f_open(&fp, "sd:/sept/sept-secondary.enc", FA_READ)) // Try the deprecated version.
goto error;
}
else
{
if (f_open(&fp, "sd:/sept/sept-secondary_01.enc", FA_READ))
// Copy sept-primary.
if (f_open(&fp, "sd:/sept/sept-primary.bin", FA_READ))
goto error;
}
if (f_read(&fp, (u8 *)SEPT_STG2_ADDR, f_size(&fp), NULL))
{
if (f_read(&fp, (u8 *)SEPT_STG1_ADDR, f_size(&fp), NULL))
{
f_close(&fp);
goto error;
}
f_close(&fp);
// Copy sept-secondary.
if (kb < KB_FIRMWARE_VERSION_810)
{
if (f_open(&fp, "sd:/sept/sept-secondary_00.enc", FA_READ))
if (f_open(&fp, "sd:/sept/sept-secondary.enc", FA_READ)) // Try the deprecated version.
goto error;
}
else
{
if (f_open(&fp, "sd:/sept/sept-secondary_01.enc", FA_READ))
goto error;
}
if (f_read(&fp, (u8 *)SEPT_STG2_ADDR, f_size(&fp), NULL))
{
f_close(&fp);
goto error;
}
f_close(&fp);
goto error;
}
f_close(&fp);
// Save auto boot config to sept payload, if any.
boot_cfg_t *tmp_cfg = malloc(sizeof(boot_cfg_t));

10
source/keys/keys.c
View file

@ -304,7 +304,7 @@ get_tsec: ;
break;
}
memcpy(master_key[kb-1], master_key[kb], 0x10);
memcpy(master_key[kb], zeros, 0x10);
memset(master_key[kb], 0, 0x10);
}
if (_key_exists(temp_key)) {
EPRINTF("Unable to derive master key.");
@ -527,6 +527,8 @@ pkg2_done:
for (u32 j = 0; j < 3; j++) {
_generate_kek(8, fs_keys[2 + j], master_key[i], aes_kek_generation_source, NULL);
se_aes_crypt_block_ecb(8, 0, key_area_key[j][i], aes_key_generation_source);
if (j == 2)
gfx_hexdump(i, key_area_key[j][i], 0x10);
}
}
se_aes_key_set(8, master_key[i], 0x10);
@ -1088,8 +1090,14 @@ static void _save_key(const char *name, const void *data, u32 len, char *outbuf)
static void _save_key_family(const char *name, const void *data, u32 start_key, u32 num_keys, u32 len, char *outbuf) {
char temp_name[0x40] = {0};
if (memcmp(name, "key_area_key_system", 19) == 0) {
gfx_hexdump(0, data, num_keys * 0x10);
}
for (u32 i = 0; i < num_keys; i++) {
sprintf(temp_name, "%s_%02x", name, i + start_key);
if (memcmp(name, "key_area_key_system", 19) == 0) {
gfx_printf("attempt save key %x\n", i);
}
_save_key(temp_name, data + i * len, len, outbuf);
}
}