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[Versioning] Better and smarter for update and sept

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- Still compatible with old hekate.
- Allows for hotfix control
- Sept is now copied from actual running payload, negating the need to check update.bin
- If a foreign payload is found in sept then it is renamed and hekate copies itself. After sept run, it renames it back and continues with boot.
This commit is contained in:
Kostas Missos 2019-03-07 23:53:58 +02:00
parent ca68818efe
commit 2e9a89aa20
5 changed files with 92 additions and 96 deletions
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11
Makefile
View file

@ -5,8 +5,12 @@ endif
include $(DEVKITARM)/base_rules
IPL_LOAD_ADDR := 0x40008000
IPL_MAGIC := 0x43544349 #"ICTC"
BLVERSION_MAJOR := 4
BLVERSION_MINOR := 8
BLVERSION_HOTFX := 0
BL_RESERVED := 0
TARGET := hekate
BUILD := build
@ -65,12 +69,15 @@ OBJS += $(addprefix $(BUILD)/$(TARGET)/, \
elfload.o elfreloc_arm.o \
)
CUSTOMDEFINES := -DBLVERSIONMJ=$(BLVERSION_MAJOR) -DBLVERSIONMN=$(BLVERSION_MINOR) -DIPL_LOAD_ADDR=$(IPL_LOAD_ADDR)
CUSTOMDEFINES := -DIPL_LOAD_ADDR=$(IPL_LOAD_ADDR) -DBL_MAGIC=$(IPL_MAGIC)
CUSTOMDEFINES += -DBL_VER_MJ=$(BLVERSION_MAJOR) -DBL_VER_MN=$(BLVERSION_MINOR) -DBL_VER_HF=$(BLVERSION_HOTFX) -DBL_RESERVED=$(BL_RESERVED)
CUSTOMDEFINES += -DMENU_LOGO_ENABLE
#CUSTOMDEFINES += -DDEBUG
# 0: UART_A, 1: UART_B.
#CUSTOMDEFINES += -DDEBUG_UART_PORT=0
#CUSTOMDEFINES += -DDEBUG
ARCH := -march=armv4t -mtune=arm7tdmi -mthumb -mthumb-interwork
CFLAGS = $(ARCH) -O2 -nostdlib -ffunction-sections -fdata-sections -fomit-frame-pointer -fno-inline -std=gnu11 -Wall $(CUSTOMDEFINES)
LDFLAGS = $(ARCH) -nostartfiles -lgcc -Wl,--nmagic,--gc-sections -Xlinker --defsym=IPL_LOAD_ADDR=$(IPL_LOAD_ADDR)

63
bootloader/hos/sept.c
View file

@ -35,6 +35,7 @@ extern gfx_con_t gfx_con;
#define EPRINTF(text) gfx_printf(&gfx_con, "%k"text"%k\n", 0xFFFF0000, 0xFFCCCCCC)
#define EPRINTFARGS(text, args...) gfx_printf(&gfx_con, "%k"text"%k\n", 0xFFFF0000, args, 0xFFCCCCCC)
#define RELOC_META_OFF 0x7C
#define PATCHED_RELOC_SZ 0x94
#define WB_RST_ADDR 0x40010ED0
@ -55,7 +56,6 @@ u8 warmboot_reboot[] = {
#define SEPT_PRI_ADDR 0x4003F000
#define SEPT_PK1T_ADDR 0xC0400000
#define SEPT_PK1T_STACK 0x40008000
#define SEPT_TCSZ_ADDR (SEPT_PK1T_ADDR - 0x4)
#define SEPT_STG1_ADDR (SEPT_PK1T_ADDR + 0x2E100)
#define SEPT_STG2_ADDR (SEPT_PK1T_ADDR + 0x60E0)
@ -63,13 +63,24 @@ u8 warmboot_reboot[] = {
extern boot_cfg_t b_cfg;
extern hekate_config h_cfg;
extern const volatile ipl_ver_meta_t ipl_ver;
extern void *sd_file_read(char *path);
extern void sd_mount();
extern void sd_unmount();
extern bool is_ipl_updated(void *buf);
extern void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size);
void check_sept()
{
// Check if non-hekate payload is used for sept and restore it.
if (h_cfg.sept_run && !f_stat("sept/payload.bak", NULL))
{
f_unlink("sept/payload.bin");
f_rename("sept/payload.bak", "sept/payload.bin");
return;
}
u8 *pkg1 = (u8 *)calloc(1, 0x40000);
sdmmc_storage_t storage;
@ -133,25 +144,41 @@ int reboot_to_sept(const u8 *tsec_fw)
}
f_close(&fp);
// Save auto boot config to payload, if any.
boot_cfg_t *tmp_cfg = malloc(sizeof(boot_cfg_t));
memcpy(tmp_cfg, &b_cfg, sizeof(boot_cfg_t));
b_cfg.boot_cfg |= (BOOT_CFG_AUTOBOOT_EN | BOOT_CFG_SEPT_RUN);
tmp_cfg->boot_cfg |= (BOOT_CFG_AUTOBOOT_EN | BOOT_CFG_SEPT_RUN);
if (f_open(&fp, "sept/payload.bin", FA_READ | FA_WRITE))
goto error;
u32 magic;
f_lseek(&fp, f_size(&fp) - 6);
f_read(&fp, &magic, 4, NULL);
if (magic == 0x43544349)
bool update_sept_payload = true;
if (!f_open(&fp, "sept/payload.bin", FA_READ | FA_WRITE))
{
f_lseek(&fp, PATCHED_RELOC_SZ);
f_write(&fp, tmp_cfg, sizeof(boot_cfg_t), NULL);
ipl_ver_meta_t tmp_ver;
f_lseek(&fp, PATCHED_RELOC_SZ + sizeof(boot_cfg_t));
f_read(&fp, &tmp_ver, sizeof(ipl_ver_meta_t), NULL);
if (tmp_ver.magic == ipl_ver.magic)
{
if (tmp_ver.version == ipl_ver.version)
{
// Save auto boot config to sept payload, if any.
boot_cfg_t *tmp_cfg = malloc(sizeof(boot_cfg_t));
memcpy(tmp_cfg, &b_cfg, sizeof(boot_cfg_t));
f_lseek(&fp, PATCHED_RELOC_SZ);
f_write(&fp, tmp_cfg, sizeof(boot_cfg_t), NULL);
f_close(&fp);
update_sept_payload = false;
}
}
else
f_rename("sept/payload.bin", "sept/payload.bak"); // Backup foreign payload.
f_close(&fp);
}
if (update_sept_payload)
{
volatile reloc_meta_t *reloc = (reloc_meta_t *)(IPL_LOAD_ADDR + RELOC_META_OFF);
f_open(&fp, "sept/payload.bin", FA_WRITE | FA_CREATE_ALWAYS);
f_write(&fp, (u8 *)reloc->start, reloc->end - reloc->start, NULL);
f_close(&fp);
}
f_close(&fp);
sd_unmount();
@ -172,8 +199,6 @@ int reboot_to_sept(const u8 *tsec_fw)
(*sept)();
return 1;
error:
EPRINTF("Failed to run sept\n");
display_backlight_brightness(h_cfg.backlight, 1000);

1
bootloader/link.ld
View file

@ -6,6 +6,7 @@ SECTIONS {
.text : {
*(.text._start);
*(._boot_cfg);
*(._ipl_version);
*(.text*);
}
.data : {

105
bootloader/main.c
View file

@ -279,6 +279,7 @@ void check_power_off_from_hos()
// This is a safe and unused DRAM region for our payloads.
// IPL_LOAD_ADDR is defined in makefile.
#define EXT_PAYLOAD_ADDR 0xC03C0000
#define RELOC_META_OFF 0x7C
#define PATCHED_RELOC_SZ 0x94
#define RCM_PAYLOAD_ADDR (EXT_PAYLOAD_ADDR + ALIGN(PATCHED_RELOC_SZ, 0x10))
#define PAYLOAD_ENTRY 0x40010000
@ -312,9 +313,25 @@ void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size)
#define BOOTLOADER_UPDATED_MAGIC 0x424F4F54 // "BOOT".
#define BOOTLOADER_UPDATED_MAGIC_ADDR 0x4003E000
bool is_ipl_updated(void *buf)
{
ipl_ver_meta_t *update_ft = (ipl_ver_meta_t *)(buf + PATCHED_RELOC_SZ + sizeof(boot_cfg_t));
if (update_ft->magic == ipl_ver.magic)
{
if (byte_swap_32(update_ft->version) <= byte_swap_32(ipl_ver.version))
return true;
return false;
}
else
return true;
}
int launch_payload(char *path, bool update)
{
gfx_clear_grey(&gfx_ctxt, 0x1B);
if (!update)
gfx_clear_grey(&gfx_ctxt, 0x1B);
gfx_con_setpos(&gfx_con, 0, 0);
if (!path)
return 1;
@ -350,66 +367,17 @@ int launch_payload(char *path, bool update)
f_close(&fp);
free(path);
// Check for updated version.
if (update)
{
u8 *update_ft = calloc(1, 6);
if (update && is_ipl_updated(buf))
return 1;
bool update_sept = true;
if (!f_open(&fp, "sept/payload.bin", FA_READ | FA_WRITE))
{
memset(update_ft, 0, 6);
f_lseek(&fp, f_size(&fp) - 6);
f_read(&fp, update_ft, 6, NULL);
f_close(&fp);
update_ft[4] -= '0';
update_ft[5] -= '0';
if (*(u32 *)update_ft == 0x43544349)
{
if (update_ft[4] == BLVERSIONMJ && update_ft[5] == BLVERSIONMN)
update_sept = false;
}
else
update_sept = false;
}
if (update_sept)
{
if (!f_open(&fp, "sept/payload.bin", FA_CREATE_ALWAYS | FA_WRITE))
{
f_write(&fp, buf, size, NULL);
f_close(&fp);
}
}
memcpy(update_ft, buf + size - 6, 6);
update_ft[4] -= '0';
update_ft[5] -= '0';
if (*(u32 *)update_ft == 0x43544349)
{
if (update_ft[4] < BLVERSIONMJ || (update_ft[4] == BLVERSIONMJ && update_ft[5] <= BLVERSIONMN))
{
free(update_ft);
return 1;
}
*(vu32 *)BOOTLOADER_UPDATED_MAGIC_ADDR = BOOTLOADER_UPDATED_MAGIC;
}
else
{
free(update_ft);
return 1;
}
free(update_ft);
}
sd_unmount();
if (size < 0x30000)
{
if (!update)
reloc_patcher(PAYLOAD_ENTRY, EXT_PAYLOAD_ADDR, ALIGN(size, 0x10));
if (update)
memcpy((u8 *)(RCM_PAYLOAD_ADDR + PATCHED_RELOC_SZ), &b_cfg, sizeof(boot_cfg_t)); // Transfer boot cfg.
else
memcpy((u8 *)(RCM_PAYLOAD_ADDR + PATCHED_RELOC_SZ), (u8 *)(IPL_LOAD_ADDR + PATCHED_RELOC_SZ), sizeof(boot_cfg_t));
reloc_patcher(PATCHED_RELOC_ENTRY, EXT_PAYLOAD_ADDR, ALIGN(size, 0x10));
reconfig_hw_workaround(false, byte_swap_32(*(u32 *)(buf + size - sizeof(u32))));
}
@ -433,23 +401,12 @@ int launch_payload(char *path, bool update)
void auto_launch_update()
{
FIL fp;
if (*(vu32 *)BOOTLOADER_UPDATED_MAGIC_ADDR == BOOTLOADER_UPDATED_MAGIC)
*(vu32 *)BOOTLOADER_UPDATED_MAGIC_ADDR = 0;
else
if (EMC(EMC_SCRATCH0) & EMC_HEKA_UPD)
EMC(EMC_SCRATCH0) &= ~EMC_HEKA_UPD;
else if (sd_mount())
{
if (sd_mount())
{
if (f_open(&fp, "bootloader/update.bin", FA_READ))
return;
else
{
f_close(&fp);
launch_payload("bootloader/update.bin", true);
}
}
if (!f_stat("bootloader/update.bin", NULL))
launch_payload("bootloader/update.bin", true);
}
}
@ -825,7 +782,7 @@ out:
void auto_launch_firmware()
{
if (!(b_cfg->boot_cfg & BOOT_CFG_FROM_LAUNCH))
if (!(b_cfg.boot_cfg & BOOT_CFG_FROM_LAUNCH))
{
auto_launch_update();
gfx_con.mute = true;
@ -856,10 +813,8 @@ void auto_launch_firmware()
if (sd_mount())
{
if (f_open(&fp, "bootloader/hekate_ipl.ini", FA_READ))
if (f_stat("bootloader/hekate_ipl.ini", NULL))
create_config_entry();
else
f_close(&fp);
if (ini_parse(&ini_sections, "bootloader/hekate_ipl.ini", false))
{

8
bootloader/utils/types.h
View file

@ -76,4 +76,12 @@ typedef struct __attribute__((__packed__)) _ipl_ver_meta_t
u16 rsvd1;
} ipl_ver_meta_t;
typedef struct __attribute__((__packed__)) _reloc_meta_t
{
u32 start;
u32 stack;
u32 end;
u32 ep;
} reloc_meta_t;
#endif