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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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105
bootloader/main.c
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@@ -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))
{