x64: add EFI Image boot from emmc SSD support

This commit is contained in:
coolsnowwolf 2020-06-23 23:44:27 +08:00
parent d9dc1d4605
commit 378ca0f03e
9 changed files with 1795 additions and 9 deletions

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@ -202,13 +202,12 @@ menu "Target Images"
depends on TARGET_ROOTFS_EXT4FS || TARGET_ROOTFS_ISO || TARGET_ROOTFS_JFFS2 || TARGET_ROOTFS_SQUASHFS
select PACKAGE_grub2
select PACKAGE_grub2-efi
default n
default y
config GRUB_CONSOLE
bool "Use Console Terminal (in addition to Serial)"
depends on GRUB_IMAGES || EFI_IMAGES
default n if (TARGET_x86_generic_Soekris45xx || TARGET_x86_generic_Soekris48xx || TARGET_x86_net5501 || TARGET_x86_geos || TARGET_x86_alix2)
default y
default n
config GRUB_SERIAL
string "Serial port device"

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@ -0,0 +1,19 @@
menuconfig MIKROTIK
bool "Platform support for MikroTik RouterBoard virtual devices"
default n
help
Say Y here to get to see options for the MikroTik RouterBoard platform.
This option alone does not add any kernel code.
if MIKROTIK
config MIKROTIK_RB_SYSFS
tristate "RouterBoot sysfs support"
depends on MTD
select LZO_DECOMPRESS
select CRC32
help
This driver exposes RouterBoot configuration in sysfs.
endif # MIKROTIK

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@ -0,0 +1,4 @@
#
# Makefile for MikroTik RouterBoard platform specific drivers
#
obj-$(CONFIG_MIKROTIK_RB_SYSFS) += routerboot.o rb_hardconfig.o rb_softconfig.o

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@ -0,0 +1,744 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for MikroTik RouterBoot hard config.
*
* Copyright (C) 2020 Thibaut VARÈNE <hacks+kernel@slashdirt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* This driver exposes the data encoded in the "hard_config" flash segment of
* MikroTik RouterBOARDs devices. It presents the data in a sysfs folder
* named "hard_config". The WLAN calibration data is available on demand via
* the 'wlan_data' sysfs file in that folder.
*
* This driver permanently allocates a chunk of RAM as large as the hard_config
* MTD partition, although it is technically possible to operate entirely from
* the MTD device without using a local buffer (except when requesting WLAN
* calibration data), at the cost of a performance penalty.
*
* Note: PAGE_SIZE is assumed to be >= 4K, hence the device attribute show
* routines need not check for output overflow.
*
* Some constant defines extracted from routerboot.{c,h} by Gabor Juhos
* <juhosg@openwrt.org>
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/kobject.h>
#include <linux/bitops.h>
#include <linux/string.h>
#include <linux/mtd/mtd.h>
#include <linux/sysfs.h>
#include <linux/lzo.h>
#include "routerboot.h"
#define RB_HARDCONFIG_VER "0.04"
#define RB_HC_PR_PFX "[rb_hardconfig] "
/* ID values for hardware settings */
#define RB_ID_FLASH_INFO 0x03
#define RB_ID_MAC_ADDRESS_PACK 0x04
#define RB_ID_BOARD_PRODUCT_CODE 0x05
#define RB_ID_BIOS_VERSION 0x06
#define RB_ID_SDRAM_TIMINGS 0x08
#define RB_ID_DEVICE_TIMINGS 0x09
#define RB_ID_SOFTWARE_ID 0x0A
#define RB_ID_SERIAL_NUMBER 0x0B
#define RB_ID_MEMORY_SIZE 0x0D
#define RB_ID_MAC_ADDRESS_COUNT 0x0E
#define RB_ID_HW_OPTIONS 0x15
#define RB_ID_WLAN_DATA 0x16
#define RB_ID_BOARD_IDENTIFIER 0x17
#define RB_ID_PRODUCT_NAME 0x21
#define RB_ID_DEFCONF 0x26
/* Bit definitions for hardware options */
#define RB_HW_OPT_NO_UART BIT(0)
#define RB_HW_OPT_HAS_VOLTAGE BIT(1)
#define RB_HW_OPT_HAS_USB BIT(2)
#define RB_HW_OPT_HAS_ATTINY BIT(3)
#define RB_HW_OPT_PULSE_DUTY_CYCLE BIT(9)
#define RB_HW_OPT_NO_NAND BIT(14)
#define RB_HW_OPT_HAS_LCD BIT(15)
#define RB_HW_OPT_HAS_POE_OUT BIT(16)
#define RB_HW_OPT_HAS_uSD BIT(17)
#define RB_HW_OPT_HAS_SIM BIT(18)
#define RB_HW_OPT_HAS_SFP BIT(20)
#define RB_HW_OPT_HAS_WIFI BIT(21)
#define RB_HW_OPT_HAS_TS_FOR_ADC BIT(22)
#define RB_HW_OPT_HAS_PLC BIT(29)
static struct kobject *hc_kobj;
static u8 *hc_buf; // ro buffer after init(): no locking required
static size_t hc_buflen;
/*
* For LZOR style WLAN data unpacking.
* This binary blob is prepended to the data encoded on some devices as
* RB_ID_WLAN_DATA, the result is then first decompressed with LZO, and then
* finally RLE-decoded.
* This binary blob has been extracted from RouterOS by
* https://forum.openwrt.org/u/ius
*/
static const u8 hc_lzor_prefix[] = {
0x00, 0x05, 0x4c, 0x4c, 0x44, 0x00, 0x34, 0xfe,
0xfe, 0x34, 0x11, 0x3c, 0x1e, 0x3c, 0x2e, 0x3c,
0x4c, 0x34, 0x00, 0x52, 0x62, 0x92, 0xa2, 0xb2,
0xc3, 0x2a, 0x14, 0x00, 0x00, 0x05, 0xfe, 0x6a,
0x3c, 0x16, 0x32, 0x16, 0x11, 0x1e, 0x12, 0x46,
0x32, 0x46, 0x11, 0x4e, 0x12, 0x36, 0x32, 0x36,
0x11, 0x3e, 0x12, 0x5a, 0x9a, 0x64, 0x00, 0x04,
0xfe, 0x10, 0x3c, 0x00, 0x01, 0x00, 0x00, 0x28,
0x0c, 0x00, 0x0f, 0xfe, 0x14, 0x00, 0x24, 0x24,
0x23, 0x24, 0x24, 0x23, 0x25, 0x22, 0x21, 0x21,
0x23, 0x22, 0x21, 0x22, 0x21, 0x2d, 0x38, 0x00,
0x0c, 0x25, 0x25, 0x24, 0x25, 0x25, 0x24, 0x23,
0x22, 0x21, 0x20, 0x23, 0x21, 0x21, 0x22, 0x21,
0x2d, 0x38, 0x00, 0x28, 0xb0, 0x00, 0x00, 0x22,
0x00, 0x00, 0xc0, 0xfe, 0x03, 0x00, 0xc0, 0x00,
0x62, 0xff, 0x62, 0xff, 0xfe, 0x06, 0x00, 0xbb,
0xff, 0xba, 0xff, 0xfe, 0x08, 0x00, 0x9e, 0xff,
0xfe, 0x0a, 0x00, 0x53, 0xff, 0xfe, 0x02, 0x00,
0x20, 0xff, 0xb1, 0xfe, 0xfe, 0xb2, 0xfe, 0xfe,
0xed, 0xfe, 0xfe, 0xfe, 0x04, 0x00, 0x3a, 0xff,
0x3a, 0xff, 0xde, 0xfd, 0x5f, 0x04, 0x33, 0xff,
0x4c, 0x74, 0x03, 0x05, 0x05, 0xff, 0x6d, 0xfe,
0xfe, 0x6d, 0xfe, 0xfe, 0xaf, 0x08, 0x63, 0xff,
0x64, 0x6f, 0x08, 0xac, 0xff, 0xbf, 0x6d, 0x08,
0x7a, 0x6d, 0x08, 0x96, 0x74, 0x04, 0x00, 0x08,
0x79, 0xff, 0xda, 0xfe, 0xfe, 0xdb, 0xfe, 0xfe,
0x56, 0xff, 0xfe, 0x04, 0x00, 0x5e, 0xff, 0x5e,
0xff, 0x6c, 0xfe, 0xfe, 0xfe, 0x06, 0x00, 0x41,
0xff, 0x7f, 0x74, 0x03, 0x00, 0x11, 0x44, 0xff,
0xa9, 0xfe, 0xfe, 0xa9, 0xfe, 0xfe, 0xa5, 0x8f,
0x01, 0x00, 0x08, 0x01, 0x01, 0x02, 0x04, 0x08,
0x02, 0x04, 0x08, 0x08, 0x01, 0x01, 0xfe, 0x22,
0x00, 0x4c, 0x60, 0x64, 0x8c, 0x90, 0xd0, 0xd4,
0xd8, 0x5c, 0x10, 0x09, 0xd8, 0xff, 0xb0, 0xff,
0x00, 0x00, 0xba, 0xff, 0x14, 0x00, 0xba, 0xff,
0x64, 0x00, 0x00, 0x08, 0xfe, 0x06, 0x00, 0x74,
0xff, 0x42, 0xff, 0xce, 0xff, 0x60, 0xff, 0x0a,
0x00, 0xb4, 0x00, 0xa0, 0x00, 0xa0, 0xfe, 0x07,
0x00, 0x0a, 0x00, 0xb0, 0xff, 0x96, 0x4d, 0x00,
0x56, 0x57, 0x18, 0xa6, 0xff, 0x92, 0x70, 0x11,
0x00, 0x12, 0x90, 0x90, 0x76, 0x5a, 0x54, 0x54,
0x4c, 0x46, 0x38, 0x00, 0x10, 0x10, 0x08, 0xfe,
0x05, 0x00, 0x38, 0x29, 0x25, 0x23, 0x22, 0x22,
0x1f, 0x00, 0x00, 0x00, 0xf6, 0xe1, 0xdd, 0xf8,
0xfe, 0x00, 0xfe, 0x15, 0x00, 0x00, 0xd0, 0x02,
0x74, 0x02, 0x08, 0xf8, 0xe5, 0xde, 0x02, 0x04,
0x04, 0xfd, 0x00, 0x00, 0x00, 0x07, 0x50, 0x2d,
0x01, 0x90, 0x90, 0x76, 0x60, 0xb0, 0x07, 0x07,
0x0c, 0x0c, 0x04, 0xfe, 0x05, 0x00, 0x66, 0x66,
0x5a, 0x56, 0xbc, 0x01, 0x06, 0xfc, 0xfc, 0xf1,
0xfe, 0x07, 0x00, 0x24, 0x95, 0x70, 0x64, 0x18,
0x06, 0x2c, 0xff, 0xb5, 0xfe, 0xfe, 0xb5, 0xfe,
0xfe, 0xe2, 0x8c, 0x24, 0x02, 0x2f, 0xff, 0x2f,
0xff, 0xb4, 0x78, 0x02, 0x05, 0x73, 0xff, 0xed,
0xfe, 0xfe, 0x4f, 0xff, 0x36, 0x74, 0x1e, 0x09,
0x4f, 0xff, 0x50, 0xff, 0xfe, 0x16, 0x00, 0x70,
0xac, 0x70, 0x8e, 0xac, 0x40, 0x0e, 0x01, 0x70,
0x7f, 0x8e, 0xac, 0x6c, 0x00, 0x0b, 0xfe, 0x02,
0x00, 0xfe, 0x0a, 0x2c, 0x2a, 0x2a, 0x28, 0x26,
0x1e, 0x1e, 0xfe, 0x02, 0x20, 0x65, 0x20, 0x00,
0x00, 0x05, 0x12, 0x00, 0x11, 0x1e, 0x11, 0x11,
0x41, 0x1e, 0x41, 0x11, 0x31, 0x1e, 0x31, 0x11,
0x70, 0x75, 0x7a, 0x7f, 0x84, 0x89, 0x8e, 0x93,
0x98, 0x30, 0x20, 0x00, 0x02, 0x00, 0xfe, 0x06,
0x3c, 0xbc, 0x32, 0x0c, 0x00, 0x00, 0x2a, 0x12,
0x1e, 0x12, 0x2e, 0x12, 0xcc, 0x12, 0x11, 0x1a,
0x1e, 0x1a, 0x2e, 0x1a, 0x4c, 0x10, 0x1e, 0x10,
0x11, 0x18, 0x1e, 0x42, 0x1e, 0x42, 0x2e, 0x42,
0xcc, 0x42, 0x11, 0x4a, 0x1e, 0x4a, 0x2e, 0x4a,
0x4c, 0x40, 0x1e, 0x40, 0x11, 0x48, 0x1e, 0x32,
0x1e, 0x32, 0x2e, 0x32, 0xcc, 0x32, 0x11, 0x3a,
0x1e, 0x3a, 0x2e, 0x3a, 0x4c, 0x30, 0x1e, 0x30,
0x11, 0x38, 0x1e, 0x27, 0x9a, 0x01, 0x9d, 0xa2,
0x2f, 0x28, 0x00, 0x00, 0x46, 0xde, 0xc4, 0xbf,
0xa6, 0x9d, 0x81, 0x7b, 0x5c, 0x61, 0x40, 0xc7,
0xc0, 0xae, 0xa9, 0x8c, 0x83, 0x6a, 0x62, 0x50,
0x3e, 0xce, 0xc2, 0xae, 0xa3, 0x8c, 0x7b, 0x6a,
0x5a, 0x50, 0x35, 0xd7, 0xc2, 0xb7, 0xa4, 0x95,
0x7e, 0x72, 0x5a, 0x59, 0x37, 0xfe, 0x02, 0xf8,
0x8c, 0x95, 0x90, 0x8f, 0x00, 0xd7, 0xc0, 0xb7,
0xa2, 0x95, 0x7b, 0x72, 0x56, 0x59, 0x32, 0xc7,
0xc3, 0xae, 0xad, 0x8c, 0x85, 0x6a, 0x63, 0x50,
0x3e, 0xce, 0xc3, 0xae, 0xa4, 0x8c, 0x7c, 0x6a,
0x59, 0x50, 0x34, 0xd7, 0xc2, 0xb7, 0xa5, 0x95,
0x7e, 0x72, 0x59, 0x59, 0x36, 0xfc, 0x05, 0x00,
0x02, 0xce, 0xc5, 0xae, 0xa5, 0x95, 0x83, 0x72,
0x5c, 0x59, 0x36, 0xbf, 0xc6, 0xa5, 0xab, 0x8c,
0x8c, 0x6a, 0x67, 0x50, 0x41, 0x64, 0x07, 0x00,
0x02, 0x95, 0x8c, 0x72, 0x65, 0x59, 0x3f, 0xce,
0xc7, 0xae, 0xa8, 0x95, 0x86, 0x72, 0x5f, 0x59,
0x39, 0xfe, 0x02, 0xf8, 0x8b, 0x7c, 0x0b, 0x09,
0xb7, 0xc2, 0x9d, 0xa4, 0x83, 0x85, 0x6a, 0x6b,
0x50, 0x44, 0xb7, 0xc1, 0x64, 0x01, 0x00, 0x06,
0x61, 0x5d, 0x48, 0x3d, 0xae, 0xc4, 0x9d, 0xad,
0x7b, 0x85, 0x61, 0x66, 0x48, 0x46, 0xae, 0xc3,
0x95, 0xa3, 0x72, 0x7c, 0x59, 0x56, 0x38, 0x31,
0x7c, 0x0b, 0x00, 0x0c, 0x96, 0x91, 0x8f, 0x00,
0xb7, 0xc0, 0xa5, 0xab, 0x8c, 0x8a, 0x6a, 0x64,
0x50, 0x3c, 0xb7, 0xc0, 0x9d, 0xa0, 0x83, 0x80,
0x6a, 0x64, 0x50, 0x3d, 0xb7, 0xc5, 0x9d, 0xa5,
0x83, 0x87, 0x6c, 0x08, 0x07, 0xae, 0xc0, 0x9d,
0xa8, 0x83, 0x88, 0x6a, 0x6d, 0x50, 0x46, 0xfc,
0x05, 0x00, 0x16, 0xbf, 0xc0, 0xa5, 0xa2, 0x8c,
0x7f, 0x6a, 0x57, 0x50, 0x2f, 0xb7, 0xc7, 0xa5,
0xb1, 0x8c, 0x8e, 0x72, 0x6d, 0x59, 0x45, 0xbf,
0xc6, 0xa5, 0xa8, 0x8c, 0x87, 0x6a, 0x5f, 0x50,
0x37, 0xbf, 0xc2, 0xa5, 0xa4, 0x8c, 0x83, 0x6a,
0x5c, 0x50, 0x34, 0xbc, 0x05, 0x00, 0x0e, 0x90,
0x00, 0xc7, 0xc2, 0xae, 0xaa, 0x95, 0x82, 0x7b,
0x60, 0x61, 0x3f, 0xb7, 0xc6, 0xa5, 0xb1, 0x8c,
0x8d, 0x72, 0x6b, 0x61, 0x51, 0xbf, 0xc4, 0xa5,
0xa5, 0x8c, 0x82, 0x72, 0x61, 0x59, 0x39, 0x6c,
0x26, 0x03, 0x95, 0x82, 0x7b, 0x61, 0x61, 0x40,
0xfc, 0x05, 0x00, 0x00, 0x7e, 0xd7, 0xc3, 0xb7,
0xa8, 0x9d, 0x80, 0x83, 0x5d, 0x6a, 0x3f, 0xbf,
0xc7, 0xa5, 0xa8, 0x8c, 0x84, 0x72, 0x60, 0x61,
0x46, 0xbf, 0xc2, 0xae, 0xb0, 0x9d, 0x92, 0x83,
0x6f, 0x6a, 0x50, 0xd7, 0xc3, 0xb7, 0xa7, 0x9d,
0x80, 0x83, 0x5e, 0x6a, 0x40, 0xfe, 0x02, 0xf8,
0x8d, 0x96, 0x90, 0x90, 0xfe, 0x05, 0x00, 0x8a,
0xc4, 0x63, 0xb8, 0x3c, 0xa6, 0x29, 0x97, 0x16,
0x81, 0x84, 0xb7, 0x5b, 0xa9, 0x33, 0x94, 0x1e,
0x83, 0x11, 0x70, 0xb8, 0xc2, 0x70, 0xb1, 0x4d,
0xa3, 0x2a, 0x8d, 0x1b, 0x7b, 0xa8, 0xbc, 0x68,
0xab, 0x47, 0x9d, 0x27, 0x87, 0x18, 0x75, 0xae,
0xc6, 0x7d, 0xbb, 0x4d, 0xaa, 0x1c, 0x84, 0x11,
0x72, 0xa3, 0xbb, 0x6e, 0xad, 0x3c, 0x97, 0x24,
0x85, 0x16, 0x71, 0x80, 0xb2, 0x57, 0xa4, 0x30,
0x8e, 0x1c, 0x7c, 0x10, 0x68, 0xbb, 0xbd, 0x75,
0xac, 0x4f, 0x9e, 0x2b, 0x87, 0x1a, 0x76, 0x96,
0xc5, 0x5e, 0xb5, 0x3e, 0xa5, 0x1f, 0x8c, 0x12,
0x7a, 0xc1, 0xc6, 0x42, 0x9f, 0x27, 0x8c, 0x16,
0x77, 0x0f, 0x67, 0x9d, 0xbc, 0x68, 0xad, 0x36,
0x95, 0x20, 0x83, 0x11, 0x6d, 0x9b, 0xb8, 0x67,
0xa8, 0x34, 0x90, 0x1f, 0x7c, 0x10, 0x67, 0x9e,
0xc9, 0x6a, 0xbb, 0x37, 0xa4, 0x20, 0x90, 0x11,
0x7b, 0xc6, 0xc8, 0x47, 0xa4, 0x2a, 0x90, 0x18,
0x7b, 0x10, 0x6c, 0xae, 0xc4, 0x5d, 0xad, 0x37,
0x9a, 0x1f, 0x85, 0x13, 0x75, 0x70, 0xad, 0x42,
0x99, 0x25, 0x84, 0x17, 0x74, 0x0b, 0x56, 0x87,
0xc8, 0x57, 0xb8, 0x2b, 0x9e, 0x19, 0x8a, 0x0d,
0x74, 0xa7, 0xc8, 0x6e, 0xb9, 0x36, 0xa0, 0x1f,
0x8b, 0x11, 0x75, 0x94, 0xbe, 0x4b, 0xa5, 0x2a,
0x92, 0x18, 0x7c, 0x0f, 0x6b, 0xaf, 0xc0, 0x58,
0xa8, 0x34, 0x94, 0x1d, 0x7d, 0x12, 0x6d, 0x82,
0xc0, 0x52, 0xb0, 0x25, 0x94, 0x14, 0x7f, 0x0c,
0x68, 0x84, 0xbf, 0x3e, 0xa4, 0x22, 0x8e, 0x10,
0x76, 0x0b, 0x65, 0x88, 0xb6, 0x42, 0x9b, 0x26,
0x87, 0x14, 0x70, 0x0c, 0x5f, 0xc5, 0xc2, 0x3e,
0x97, 0x23, 0x83, 0x13, 0x6c, 0x0c, 0x5c, 0xb1,
0xc9, 0x76, 0xbc, 0x4a, 0xaa, 0x20, 0x8d, 0x12,
0x78, 0x93, 0xbf, 0x46, 0xa3, 0x26, 0x8d, 0x14,
0x74, 0x0c, 0x62, 0xc8, 0xc4, 0x3b, 0x97, 0x21,
0x82, 0x11, 0x6a, 0x0a, 0x59, 0xa3, 0xb9, 0x68,
0xa9, 0x30, 0x8d, 0x1a, 0x78, 0x0f, 0x61, 0xa0,
0xc9, 0x73, 0xbe, 0x50, 0xb1, 0x30, 0x9f, 0x14,
0x80, 0x83, 0xb7, 0x3c, 0x9a, 0x20, 0x84, 0x0e,
0x6a, 0x0a, 0x57, 0xac, 0xc2, 0x68, 0xb0, 0x2e,
0x92, 0x19, 0x7c, 0x0d, 0x63, 0x93, 0xbe, 0x62,
0xb0, 0x3c, 0x9e, 0x1a, 0x80, 0x0e, 0x6b, 0xbb,
0x02, 0xa0, 0x02, 0xa0, 0x02, 0x6f, 0x00, 0x75,
0x00, 0x75, 0x00, 0x00, 0x00, 0xad, 0x02, 0xb3,
0x02, 0x6f, 0x00, 0x87, 0x00, 0x85, 0xfe, 0x03,
0x00, 0xc2, 0x02, 0x82, 0x4d, 0x92, 0x6e, 0x4d,
0xb1, 0xa8, 0x84, 0x01, 0x00, 0x07, 0x7e, 0x00,
0xa8, 0x02, 0xa4, 0x02, 0xa4, 0x02, 0xa2, 0x00,
0xa6, 0x00, 0xa6, 0x00, 0x00, 0x00, 0xb4, 0x02,
0xb4, 0x02, 0x92, 0x00, 0x96, 0x00, 0x96, 0x46,
0x04, 0xb0, 0x02, 0x64, 0x02, 0x0a, 0x8c, 0x00,
0x90, 0x02, 0x98, 0x02, 0x98, 0x02, 0x0e, 0x01,
0x11, 0x01, 0x11, 0x50, 0xc3, 0x08, 0x88, 0x02,
0x88, 0x02, 0x19, 0x01, 0x02, 0x01, 0x02, 0x01,
0xf3, 0x2d, 0x00, 0x00
};
/* Array of known hw_options bits with human-friendly parsing */
static struct hc_hwopt {
const u32 bit;
const char *str;
} const hc_hwopts[] = {
{
.bit = RB_HW_OPT_NO_UART,
.str = "no UART\t\t",
}, {
.bit = RB_HW_OPT_HAS_VOLTAGE,
.str = "has Vreg\t",
}, {
.bit = RB_HW_OPT_HAS_USB,
.str = "has usb\t\t",
}, {
.bit = RB_HW_OPT_HAS_ATTINY,
.str = "has ATtiny\t",
}, {
.bit = RB_HW_OPT_NO_NAND,
.str = "no NAND\t\t",
}, {
.bit = RB_HW_OPT_HAS_LCD,
.str = "has LCD\t\t",
}, {
.bit = RB_HW_OPT_HAS_POE_OUT,
.str = "has POE out\t",
}, {
.bit = RB_HW_OPT_HAS_uSD,
.str = "has MicroSD\t",
}, {
.bit = RB_HW_OPT_HAS_SIM,
.str = "has SIM\t\t",
}, {
.bit = RB_HW_OPT_HAS_SFP,
.str = "has SFP\t\t",
}, {
.bit = RB_HW_OPT_HAS_WIFI,
.str = "has WiFi\t",
}, {
.bit = RB_HW_OPT_HAS_TS_FOR_ADC,
.str = "has TS ADC\t",
}, {
.bit = RB_HW_OPT_HAS_PLC,
.str = "has PLC\t\t",
},
};
/*
* The MAC is stored network-endian on all devices, in 2 32-bit segments:
* <XX:XX:XX:XX> <XX:XX:00:00>. Kernel print has us covered.
*/
static ssize_t hc_tag_show_mac(const u8 *pld, u16 pld_len, char *buf)
{
if (8 != pld_len)
return -EINVAL;
return sprintf(buf, "%pM\n", pld);
}
/*
* Print HW options in a human readable way:
* The raw number and in decoded form
*/
static ssize_t hc_tag_show_hwoptions(const u8 *pld, u16 pld_len, char *buf)
{
char *out = buf;
u32 data; // cpu-endian
int i;
if (sizeof(data) != pld_len)
return -EINVAL;
data = *(u32 *)pld;
out += sprintf(out, "raw\t\t: 0x%08x\n\n", data);
for (i = 0; i < ARRAY_SIZE(hc_hwopts); i++)
out += sprintf(out, "%s: %s\n", hc_hwopts[i].str,
(data & hc_hwopts[i].bit) ? "true" : "false");
return out - buf;
}
static ssize_t hc_wlan_data_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count);
static struct hc_wlan_attr {
struct bin_attribute battr;
u16 pld_ofs;
u16 pld_len;
} hc_wlandata_battr = {
.battr = __BIN_ATTR(wlan_data, S_IRUSR, hc_wlan_data_bin_read, NULL, 0),
};
static ssize_t hc_attr_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf);
/* Array of known tags to publish in sysfs */
static struct hc_attr {
const u16 tag_id;
ssize_t (* const tshow)(const u8 *pld, u16 pld_len, char *buf);
struct kobj_attribute kattr;
u16 pld_ofs;
u16 pld_len;
} hc_attrs[] = {
{
.tag_id = RB_ID_FLASH_INFO,
.tshow = routerboot_tag_show_u32s,
.kattr = __ATTR(flash_info, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_MAC_ADDRESS_PACK,
.tshow = hc_tag_show_mac,
.kattr = __ATTR(mac_base, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_BOARD_PRODUCT_CODE,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(board_product_code, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_BIOS_VERSION,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(booter_version, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_SERIAL_NUMBER,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(board_serial, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_MEMORY_SIZE,
.tshow = routerboot_tag_show_u32s,
.kattr = __ATTR(mem_size, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_MAC_ADDRESS_COUNT,
.tshow = routerboot_tag_show_u32s,
.kattr = __ATTR(mac_count, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_HW_OPTIONS,
.tshow = hc_tag_show_hwoptions,
.kattr = __ATTR(hw_options, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_WLAN_DATA,
.tshow = NULL,
}, {
.tag_id = RB_ID_BOARD_IDENTIFIER,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(board_identifier, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_PRODUCT_NAME,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(product_name, S_IRUSR, hc_attr_show, NULL),
}, {
.tag_id = RB_ID_DEFCONF,
.tshow = routerboot_tag_show_string,
.kattr = __ATTR(defconf, S_IRUSR, hc_attr_show, NULL),
}
};
/*
* If the RB_ID_WLAN_DATA payload starts with RB_MAGIC_ERD, then past
* that magic number the payload itself contains a routerboot tag node
* locating the LZO-compressed calibration data at id 0x1.
*/
static int hc_wlan_data_unpack_erd(const u8 *inbuf, size_t inlen,
void *outbuf, size_t *outlen)
{
u16 lzo_ofs, lzo_len;
int ret;
/* Find embedded tag */
ret = routerboot_tag_find(inbuf, inlen, 0x1, // always id 1
&lzo_ofs, &lzo_len);
if (ret) {
pr_debug(RB_HC_PR_PFX "ERD data not found\n");
goto fail;
}
if (lzo_len > inlen) {
pr_debug(RB_HC_PR_PFX "Invalid ERD data length\n");
ret = -EINVAL;
goto fail;
}
ret = lzo1x_decompress_safe(inbuf+lzo_ofs, lzo_len, outbuf, outlen);
if (ret)
pr_debug(RB_HC_PR_PFX "LZO decompression error (%d)\n", ret);
fail:
return ret;
}
/*
* If the RB_ID_WLAN_DATA payload starts with RB_MAGIC_LZOR, then past
* that magic number is a payload that must be appended to the hc_lzor_prefix,
* the resulting blob is LZO-compressed. In the LZO decompression result,
* the RB_MAGIC_ERD magic number (aligned) must be located. Following that
* magic, there is a routerboot tag node (id 0x1) locating the RLE-encoded
* calibration data payload.
*/
static int hc_wlan_data_unpack_lzor(const u8 *inbuf, size_t inlen,
void *outbuf, size_t *outlen)
{
u16 rle_ofs, rle_len;
const u32 *needle;
u8 *tempbuf;
size_t templen, lzo_len;
int ret;
lzo_len = inlen + sizeof(hc_lzor_prefix);
if (lzo_len > *outlen)
return -EFBIG;
/* Temporary buffer same size as the outbuf */
templen = *outlen;
tempbuf = kmalloc(templen, GFP_KERNEL);
if (!outbuf)
return -ENOMEM;
/* Concatenate into the outbuf */
memcpy(outbuf, hc_lzor_prefix, sizeof(hc_lzor_prefix));
memcpy(outbuf + sizeof(hc_lzor_prefix), inbuf, inlen);
/* LZO-decompress lzo_len bytes of outbuf into the tempbuf */
ret = lzo1x_decompress_safe(outbuf, lzo_len, tempbuf, &templen);
if (ret) {
if (LZO_E_INPUT_NOT_CONSUMED == ret) {
/*
* The tag length appears to always be aligned (probably
* because it is the "root" RB_ID_WLAN_DATA tag), thus
* the LZO payload may be padded, which can trigger a
* spurious error which we ignore here.
*/
pr_debug(RB_HC_PR_PFX "LZOR: LZO EOF before buffer end - this may be harmless\n");
} else {
pr_debug(RB_HC_PR_PFX "LZOR: LZO decompression error (%d)\n", ret);
goto fail;
}
}
/*
* Post decompression we have a blob (possibly byproduct of the lzo
* dictionary). We need to find RB_MAGIC_ERD. The magic number seems to
* be 32bit-aligned in the decompression output.
*/
needle = (const u32 *)tempbuf;
while (RB_MAGIC_ERD != *needle++) {
if ((u8 *)needle >= tempbuf+templen) {
pr_debug(RB_HC_PR_PFX "LZOR: ERD magic not found\n");
ret = -ENODATA;
goto fail;
}
};
templen -= (u8 *)needle - tempbuf;
/* Past magic. Look for tag node */
ret = routerboot_tag_find((u8 *)needle, templen, 0x1, &rle_ofs, &rle_len);
if (ret) {
pr_debug(RB_HC_PR_PFX "LZOR: RLE data not found\n");
goto fail;
}
if (rle_len > templen) {
pr_debug(RB_HC_PR_PFX "LZOR: Invalid RLE data length\n");
ret = -EINVAL;
goto fail;
}
/* RLE-decode tempbuf from needle back into the outbuf */
ret = routerboot_rle_decode((u8 *)needle+rle_ofs, rle_len, outbuf, outlen);
if (ret)
pr_debug(RB_HC_PR_PFX "LZOR: RLE decoding error (%d)\n", ret);
fail:
kfree(tempbuf);
return ret;
}
static int hc_wlan_data_unpack(const size_t tofs, size_t tlen,
void *outbuf, size_t *outlen)
{
const u8 *lbuf;
u32 magic;
int ret;
/* Caller ensure tlen > 0. tofs is aligned */
if ((tofs + tlen) > hc_buflen)
return -EIO;
lbuf = hc_buf + tofs;
magic = *(u32 *)lbuf;
ret = -ENODATA;
switch (magic) {
case RB_MAGIC_LZOR:
/* Skip magic */
lbuf += sizeof(magic);
tlen -= sizeof(magic);
ret = hc_wlan_data_unpack_lzor(lbuf, tlen, outbuf, outlen);
break;
case RB_MAGIC_ERD:
/* Skip magic */
lbuf += sizeof(magic);
tlen -= sizeof(magic);
ret = hc_wlan_data_unpack_erd(lbuf, tlen, outbuf, outlen);
break;
default:
/*
* If the RB_ID_WLAN_DATA payload doesn't start with a
* magic number, the payload itself is the raw RLE-encoded
* calibration data.
*/
ret = routerboot_rle_decode(lbuf, tlen, outbuf, outlen);
if (ret)
pr_debug(RB_HC_PR_PFX "RLE decoding error (%d)\n", ret);
break;
}
return ret;
}
static ssize_t hc_attr_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
const struct hc_attr *hc_attr;
const u8 *pld;
u16 pld_len;
hc_attr = container_of(attr, typeof(*hc_attr), kattr);
if (!hc_attr->pld_len)
return -ENOENT;
pld = hc_buf + hc_attr->pld_ofs;
pld_len = hc_attr->pld_len;
return hc_attr->tshow(pld, pld_len, buf);
}
/*
* This function will allocate and free memory every time it is called. This
* is not the fastest way to do this, but since the data is rarely read (mainly
* at boot time to load wlan caldata), this makes it possible to save memory for
* the system.
*/
static ssize_t hc_wlan_data_bin_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count)
{
struct hc_wlan_attr *hc_wattr;
size_t outlen;
void *outbuf;
int ret;
hc_wattr = container_of(attr, typeof(*hc_wattr), battr);
if (!hc_wattr->pld_len)
return -ENOENT;
outlen = RB_ART_SIZE;
/* Don't bother unpacking if the source is already too large */
if (hc_wattr->pld_len > outlen)
return -EFBIG;
outbuf = kmalloc(outlen, GFP_KERNEL);
if (!outbuf)
return -ENOMEM;
ret = hc_wlan_data_unpack(hc_wattr->pld_ofs, hc_wattr->pld_len, outbuf, &outlen);
if (ret) {
kfree(outbuf);
return ret;
}
if (off >= outlen) {
kfree(outbuf);
return 0;
}
if (off + count > outlen)
count = outlen - off;
memcpy(buf, outbuf + off, count);
kfree(outbuf);
return count;
}
int __init rb_hardconfig_init(struct kobject *rb_kobj)
{
struct mtd_info *mtd;
size_t bytes_read, buflen;
const u8 *buf;
int i, ret;
u32 magic;
hc_buf = NULL;
hc_kobj = NULL;
// TODO allow override
mtd = get_mtd_device_nm(RB_MTD_HARD_CONFIG);
if (IS_ERR(mtd))
return -ENODEV;
hc_buflen = mtd->size;
hc_buf = kmalloc(hc_buflen, GFP_KERNEL);
if (!hc_buf)
return -ENOMEM;
ret = mtd_read(mtd, 0, hc_buflen, &bytes_read, hc_buf);
if (ret)
goto fail;
if (bytes_read != hc_buflen) {
ret = -EIO;
goto fail;
}
/* Check we have what we expect */
magic = *(const u32 *)hc_buf;
if (RB_MAGIC_HARD != magic) {
ret = -EINVAL;
goto fail;
}
/* Skip magic */
buf = hc_buf + sizeof(magic);
buflen = hc_buflen - sizeof(magic);
/* Populate sysfs */
ret = -ENOMEM;
hc_kobj = kobject_create_and_add(RB_MTD_HARD_CONFIG, rb_kobj);
if (!hc_kobj)
goto fail;
/* Locate and publish all known tags */
for (i = 0; i < ARRAY_SIZE(hc_attrs); i++) {
ret = routerboot_tag_find(buf, buflen, hc_attrs[i].tag_id,
&hc_attrs[i].pld_ofs, &hc_attrs[i].pld_len);
if (ret) {
hc_attrs[i].pld_ofs = hc_attrs[i].pld_len = 0;
continue;
}
/* Account for skipped magic */
hc_attrs[i].pld_ofs += sizeof(magic);
/* Special case RB_ID_WLAN_DATA to prep and create the binary attribute */
if ((RB_ID_WLAN_DATA == hc_attrs[i].tag_id) && hc_attrs[i].pld_len) {
hc_wlandata_battr.pld_ofs = hc_attrs[i].pld_ofs;
hc_wlandata_battr.pld_len = hc_attrs[i].pld_len;
ret = sysfs_create_bin_file(hc_kobj, &hc_wlandata_battr.battr);
if (ret)
pr_warn(RB_HC_PR_PFX "Could not create %s sysfs entry (%d)\n",
hc_wlandata_battr.battr.attr.name, ret);
}
/* All other tags are published via standard attributes */
else {
ret = sysfs_create_file(hc_kobj, &hc_attrs[i].kattr.attr);
if (ret)
pr_warn(RB_HC_PR_PFX "Could not create %s sysfs entry (%d)\n",
hc_attrs[i].kattr.attr.name, ret);
}
}
pr_info("MikroTik RouterBOARD hardware configuration sysfs driver v" RB_HARDCONFIG_VER "\n");
return 0;
fail:
kfree(hc_buf);
hc_buf = NULL;
return ret;
}
void __exit rb_hardconfig_exit(void)
{
kobject_put(hc_kobj);
kfree(hc_buf);
}

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@ -0,0 +1,754 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for MikroTik RouterBoot soft config.
*
* Copyright (C) 2020 Thibaut VARÈNE <hacks+kernel@slashdirt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* This driver exposes the data encoded in the "soft_config" flash segment of
* MikroTik RouterBOARDs devices. It presents the data in a sysfs folder
* named "soft_config". The data is presented in a user/machine-friendly way
* with just as much parsing as can be generalized across mikrotik platforms
* (as inferred from reverse-engineering).
*
* The known soft_config tags are presented in the "soft_config" sysfs folder,
* with the addition of one specific file named "commit", which is only
* available if the driver supports writes to the mtd device: no modifications
* made to any of the other attributes are actually written back to flash media
* until a true value is input into this file (e.g. [Yy1]). This is to avoid
* unnecessary flash wear, and to permit to revert all changes by issuing a
* false value ([Nn0]). Reading the content of this file shows the current
* status of the driver: if the data in sysfs matches the content of the
* soft_config partition, the file will read "clean". Otherwise, it will read
* "dirty".
*
* The writeable sysfs files presented by this driver will accept only inputs
* which are in a valid range for the given tag. As a design choice, the driver
* will not assess whether the inputs are identical to the existing data.
*
* Note: PAGE_SIZE is assumed to be >= 4K, hence the device attribute show
* routines need not check for output overflow.
*
* Some constant defines extracted from rbcfg.h by Gabor Juhos
* <juhosg@openwrt.org>
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/kobject.h>
#include <linux/string.h>
#include <linux/mtd/mtd.h>
#include <linux/sysfs.h>
#include <linux/version.h>
#include <linux/capability.h>
#include <linux/spinlock.h>
#include <linux/crc32.h>
#ifdef CONFIG_ATH79
#include <asm/mach-ath79/ath79.h>
#endif
#include "routerboot.h"
#define RB_SOFTCONFIG_VER "0.02"
#define RB_SC_PR_PFX "[rb_softconfig] "
/*
* mtd operations before 4.17 are asynchronous, not handled by this code
* Also make the driver act read-only if 4K_SECTORS are not enabled, since they
* are require to handle partial erasing of the small soft_config partition.
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 17, 0)) && defined(CONFIG_MTD_SPI_NOR_USE_4K_SECTORS)
#define RB_SC_HAS_WRITE_SUPPORT true
#define RB_SC_WMODE S_IWUSR
#define RB_SC_RMODE S_IRUSR
#else
#define RB_SC_HAS_WRITE_SUPPORT false
#define RB_SC_WMODE 0
#define RB_SC_RMODE S_IRUSR
#endif
/* ID values for software settings */
#define RB_SCID_UART_SPEED 0x01 // u32*1
#define RB_SCID_BOOT_DELAY 0x02 // u32*1
#define RB_SCID_BOOT_DEVICE 0x03 // u32*1
#define RB_SCID_BOOT_KEY 0x04 // u32*1
#define RB_SCID_CPU_MODE 0x05 // u32*1
#define RB_SCID_BIOS_VERSION 0x06 // str
#define RB_SCID_BOOT_PROTOCOL 0x09 // u32*1
#define RB_SCID_CPU_FREQ_IDX 0x0C // u32*1
#define RB_SCID_BOOTER 0x0D // u32*1
#define RB_SCID_SILENT_BOOT 0x0F // u32*1
/*
* protected_routerboot seems to use tag 0x1F. It only works in combination with
* RouterOS, resulting in a wiped board otherwise, so it's not implemented here.
* The tag values are as follows:
* - off: 0x0
* - on: the lower halfword encodes the max value in s for the reset feature,
* the higher halfword encodes the min value in s for the reset feature.
* Default value when on: 0x00140258: 0x14 = 20s / 0x258= 600s
* See details here: https://wiki.mikrotik.com/wiki/Manual:RouterBOARD_settings#Protected_bootloader
*/
/* Tag values */
#define RB_UART_SPEED_115200 0
#define RB_UART_SPEED_57600 1
#define RB_UART_SPEED_38400 2
#define RB_UART_SPEED_19200 3
#define RB_UART_SPEED_9600 4
#define RB_UART_SPEED_4800 5
#define RB_UART_SPEED_2400 6
#define RB_UART_SPEED_1200 7
#define RB_UART_SPEED_OFF 8
/* valid boot delay: 1 - 9s in 1s increment */
#define RB_BOOT_DELAY_MIN 1
#define RB_BOOT_DELAY_MAX 9
#define RB_BOOT_DEVICE_ETHER 0 // "boot over Ethernet"
#define RB_BOOT_DEVICE_NANDETH 1 // "boot from NAND, if fail then Ethernet"
#define RB_BOOT_DEVICE_CFCARD 2 // (not available in rbcfg)
#define RB_BOOT_DEVICE_ETHONCE 3 // "boot Ethernet once, then NAND"
#define RB_BOOT_DEVICE_NANDONLY 5 // "boot from NAND only"
#define RB_BOOT_DEVICE_FLASHCFG 7 // "boot in flash configuration mode"
#define RB_BOOT_DEVICE_FLSHONCE 8 // "boot in flash configuration mode once, then NAND"
/*
* ATH79 CPU frequency indices.
* It is unknown if they apply to all ATH79 RBs, and some do not seem to feature
* the up levels (QCA955x), while U3 is presumably AR9344-only.
*/
#define RB_CPU_FREQ_IDX_ATH79_D2 (0 << 3)
#define RB_CPU_FREQ_IDX_ATH79_D1 (1 << 3) // 0x8
#define RB_CPU_FREQ_IDX_ATH79_N0 (2 << 3) // 0x10 - factory freq for many devices
#define RB_CPU_FREQ_IDX_ATH79_U1 (3 << 3) // 0x18
#define RB_CPU_FREQ_IDX_ATH79_U2 (4 << 3) // 0x20
#define RB_CPU_FREQ_IDX_ATH79_U3 (5 << 3) // 0x28
#define RB_CPU_FREQ_IDX_ATH79_MIN 0 // all devices support lowest setting
#define RB_CPU_FREQ_IDX_ATH79_AR9334_MAX 5 // stops at U3
#define RB_CPU_FREQ_IDX_ATH79_QCA953X_MAX 4 // stops at U2
#define RB_CPU_FREQ_IDX_ATH79_QCA9556_MAX 2 // stops at N0
#define RB_CPU_FREQ_IDX_ATH79_QCA9558_MAX 3 // stops at U1
#define RB_SC_CRC32_OFFSET 4 // located right after magic
static struct kobject *sc_kobj;
static u8 *sc_buf;
static size_t sc_buflen;
static rwlock_t sc_bufrwl; // rw lock to sc_buf
/* MUST be used with lock held */
#define RB_SC_CLRCRC() *(u32 *)(sc_buf + RB_SC_CRC32_OFFSET) = 0
#define RB_SC_GETCRC() *(u32 *)(sc_buf + RB_SC_CRC32_OFFSET)
#define RB_SC_SETCRC(_crc) *(u32 *)(sc_buf + RB_SC_CRC32_OFFSET) = (_crc)
struct sc_u32tvs {
const u32 val;
const char *str;
};
#define RB_SC_TVS(_val, _str) { \
.val = (_val), \
.str = (_str), \
}
static ssize_t sc_tag_show_u32tvs(const u8 *pld, u16 pld_len, char *buf,
const struct sc_u32tvs tvs[], const int tvselmts)
{
const char *fmt;
char *out = buf;
u32 data; // cpu-endian
int i;
if (tvselmts < 0)
return tvselmts;
if (sizeof(data) != pld_len)
return -EINVAL;
read_lock(&sc_bufrwl);
data = *(u32 *)pld; // pld aliases sc_buf
read_unlock(&sc_bufrwl);
for (i = 0; i < tvselmts; i++) {
fmt = (tvs[i].val == data) ? "[%s] " : "%s ";
out += sprintf(out, fmt, tvs[i].str);
}
out += sprintf(out, "\n");
return out - buf;
}
static ssize_t sc_tag_store_u32tvs(const u8 *pld, u16 pld_len, const char *buf, size_t count,
const struct sc_u32tvs tvs[], const int tvselmts)
{
int i;
if (tvselmts < 0)
return tvselmts;
if (sizeof(u32) != pld_len)
return -EINVAL;
for (i = 0; i < tvselmts; i++) {
if (sysfs_streq(buf, tvs[i].str)) {
write_lock(&sc_bufrwl);
*(u32 *)pld = tvs[i].val; // pld aliases sc_buf
RB_SC_CLRCRC();
write_unlock(&sc_bufrwl);
return count;
}
}
return -EINVAL;
}
struct sc_boolts {
const char *strfalse;
const char *strtrue;
};
static ssize_t sc_tag_show_boolts(const u8 *pld, u16 pld_len, char *buf,
const struct sc_boolts *bts)
{
const char *fmt;
char *out = buf;
u32 data; // cpu-endian
if (sizeof(data) != pld_len)
return -EINVAL;
read_lock(&sc_bufrwl);
data = *(u32 *)pld; // pld aliases sc_buf
read_unlock(&sc_bufrwl);
fmt = (data) ? "%s [%s]\n" : "[%s] %s\n";
out += sprintf(out, fmt, bts->strfalse, bts->strtrue);
return out - buf;
}
static ssize_t sc_tag_store_boolts(const u8 *pld, u16 pld_len, const char *buf, size_t count,
const struct sc_boolts *bts)
{
u32 data; // cpu-endian
if (sizeof(data) != pld_len)
return -EINVAL;
if (sysfs_streq(buf, bts->strfalse))
data = 0;
else if (sysfs_streq(buf, bts->strtrue))
data = 1;
else
return -EINVAL;
write_lock(&sc_bufrwl);
*(u32 *)pld = data; // pld aliases sc_buf
RB_SC_CLRCRC();
write_unlock(&sc_bufrwl);
return count;
}
static struct sc_u32tvs const sc_uartspeeds[] = {
RB_SC_TVS(RB_UART_SPEED_OFF, "off"),
RB_SC_TVS(RB_UART_SPEED_1200, "1200"),
RB_SC_TVS(RB_UART_SPEED_2400, "2400"),
RB_SC_TVS(RB_UART_SPEED_4800, "4800"),
RB_SC_TVS(RB_UART_SPEED_9600, "9600"),
RB_SC_TVS(RB_UART_SPEED_19200, "19200"),
RB_SC_TVS(RB_UART_SPEED_38400, "38400"),
RB_SC_TVS(RB_UART_SPEED_57600, "57600"),
RB_SC_TVS(RB_UART_SPEED_115200, "115200"),
};
/*
* While the defines are carried over from rbcfg, use strings that more clearly
* show the actual setting purpose (especially since the NAND* settings apply
* to both nand- and nor-based devices). "cfcard" was disabled in rbcfg: disable
* it here too.
*/
static struct sc_u32tvs const sc_bootdevices[] = {
RB_SC_TVS(RB_BOOT_DEVICE_ETHER, "eth"),
RB_SC_TVS(RB_BOOT_DEVICE_NANDETH, "flasheth"),
//RB_SC_TVS(RB_BOOT_DEVICE_CFCARD, "cfcard"),
RB_SC_TVS(RB_BOOT_DEVICE_ETHONCE, "ethonce"),
RB_SC_TVS(RB_BOOT_DEVICE_NANDONLY, "flash"),
RB_SC_TVS(RB_BOOT_DEVICE_FLASHCFG, "cfg"),
RB_SC_TVS(RB_BOOT_DEVICE_FLSHONCE, "cfgonce"),
};
static struct sc_boolts const sc_bootkey = {
.strfalse = "any",
.strtrue = "del",
};
static struct sc_boolts const sc_cpumode = {
.strfalse = "powersave",
.strtrue = "regular",
};
static struct sc_boolts const sc_bootproto = {
.strfalse = "bootp",
.strtrue = "dhcp",
};
static struct sc_boolts const sc_booter = {
.strfalse = "regular",
.strtrue = "backup",
};
static struct sc_boolts const sc_silent_boot = {
.strfalse = "off",
.strtrue = "on",
};
#define SC_TAG_SHOW_STORE_U32TVS_FUNCS(_name) \
static ssize_t sc_tag_show_##_name(const u8 *pld, u16 pld_len, char *buf) \
{ \
return sc_tag_show_u32tvs(pld, pld_len, buf, sc_##_name, ARRAY_SIZE(sc_##_name)); \
} \
static ssize_t sc_tag_store_##_name(const u8 *pld, u16 pld_len, const char *buf, size_t count) \
{ \
return sc_tag_store_u32tvs(pld, pld_len, buf, count, sc_##_name, ARRAY_SIZE(sc_##_name)); \
}
#define SC_TAG_SHOW_STORE_BOOLTS_FUNCS(_name) \
static ssize_t sc_tag_show_##_name(const u8 *pld, u16 pld_len, char *buf) \
{ \
return sc_tag_show_boolts(pld, pld_len, buf, &sc_##_name); \
} \
static ssize_t sc_tag_store_##_name(const u8 *pld, u16 pld_len, const char *buf, size_t count) \
{ \
return sc_tag_store_boolts(pld, pld_len, buf, count, &sc_##_name); \
}
SC_TAG_SHOW_STORE_U32TVS_FUNCS(uartspeeds)
SC_TAG_SHOW_STORE_U32TVS_FUNCS(bootdevices)
SC_TAG_SHOW_STORE_BOOLTS_FUNCS(bootkey)
SC_TAG_SHOW_STORE_BOOLTS_FUNCS(cpumode)
SC_TAG_SHOW_STORE_BOOLTS_FUNCS(bootproto)
SC_TAG_SHOW_STORE_BOOLTS_FUNCS(booter)
SC_TAG_SHOW_STORE_BOOLTS_FUNCS(silent_boot)
static ssize_t sc_tag_show_bootdelays(const u8 *pld, u16 pld_len, char *buf)
{
const char *fmt;
char *out = buf;
u32 data; // cpu-endian
int i;
if (sizeof(data) != pld_len)
return -EINVAL;
read_lock(&sc_bufrwl);
data = *(u32 *)pld; // pld aliases sc_buf
read_unlock(&sc_bufrwl);
for (i = RB_BOOT_DELAY_MIN; i <= RB_BOOT_DELAY_MAX; i++) {
fmt = (i == data) ? "[%d] " : "%d ";
out += sprintf(out, fmt, i);
}
out += sprintf(out, "\n");
return out - buf;
}
static ssize_t sc_tag_store_bootdelays(const u8 *pld, u16 pld_len, const char *buf, size_t count)
{
u32 data; // cpu-endian
int ret;
if (sizeof(data) != pld_len)
return -EINVAL;
ret = kstrtou32(buf, 10, &data);
if (ret)
return ret;
if ((data < RB_BOOT_DELAY_MIN) || (RB_BOOT_DELAY_MAX < data))
return -EINVAL;
write_lock(&sc_bufrwl);
*(u32 *)pld = data; // pld aliases sc_buf
RB_SC_CLRCRC();
write_unlock(&sc_bufrwl);
return count;
}
/* Support CPU frequency accessors only when the tag format has been asserted */
#if defined(CONFIG_ATH79)
static struct sc_u32tvs const sc_cpufreq_indexes_ath79[] = {
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_D2, "-2"),
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_D1, "-1"),
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_N0, "0"),
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_U1, "+1"),
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_U2, "+2"),
RB_SC_TVS(RB_CPU_FREQ_IDX_ATH79_U3, "+3"),
};
static int sc_tag_cpufreq_ath79_idxmax(void)
{
int idx_max = -EOPNOTSUPP;
if (soc_is_ar9344())
idx_max = RB_CPU_FREQ_IDX_ATH79_AR9334_MAX;
else if (soc_is_qca953x())
idx_max = RB_CPU_FREQ_IDX_ATH79_QCA953X_MAX;
else if (soc_is_qca9556())
idx_max = RB_CPU_FREQ_IDX_ATH79_QCA9556_MAX;
else if (soc_is_qca9558())
idx_max = RB_CPU_FREQ_IDX_ATH79_QCA9558_MAX;
return idx_max;
}
static ssize_t sc_tag_show_cpufreq_indexes(const u8 *pld, u16 pld_len, char * buf)
{
return sc_tag_show_u32tvs(pld, pld_len, buf, sc_cpufreq_indexes_ath79, sc_tag_cpufreq_ath79_idxmax()+1);
}
static ssize_t sc_tag_store_cpufreq_indexes(const u8 *pld, u16 pld_len, const char *buf, size_t count)
{
return sc_tag_store_u32tvs(pld, pld_len, buf, count, sc_cpufreq_indexes_ath79, sc_tag_cpufreq_ath79_idxmax()+1);
}
#else
/* By default we only show the raw value to help with reverse-engineering */
#define sc_tag_show_cpufreq_indexes routerboot_tag_show_u32s
#define sc_tag_store_cpufreq_indexes NULL
#endif
static ssize_t sc_attr_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf);
static ssize_t sc_attr_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count);
/* Array of known tags to publish in sysfs */
static struct sc_attr {
const u16 tag_id;
/* sysfs tag show attribute. Must lock sc_buf when dereferencing pld */
ssize_t (* const tshow)(const u8 *pld, u16 pld_len, char *buf);
/* sysfs tag store attribute. Must lock sc_buf when dereferencing pld */
ssize_t (* const tstore)(const u8 *pld, u16 pld_len, const char *buf, size_t count);
struct kobj_attribute kattr;
u16 pld_ofs;
u16 pld_len;
} sc_attrs[] = {
{
.tag_id = RB_SCID_UART_SPEED,
.tshow = sc_tag_show_uartspeeds,
.tstore = sc_tag_store_uartspeeds,
.kattr = __ATTR(uart_speed, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_BOOT_DELAY,
.tshow = sc_tag_show_bootdelays,
.tstore = sc_tag_store_bootdelays,
.kattr = __ATTR(boot_delay, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_BOOT_DEVICE,
.tshow = sc_tag_show_bootdevices,
.tstore = sc_tag_store_bootdevices,
.kattr = __ATTR(boot_device, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_BOOT_KEY,
.tshow = sc_tag_show_bootkey,
.tstore = sc_tag_store_bootkey,
.kattr = __ATTR(boot_key, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_CPU_MODE,
.tshow = sc_tag_show_cpumode,
.tstore = sc_tag_store_cpumode,
.kattr = __ATTR(cpu_mode, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_BIOS_VERSION,
.tshow = routerboot_tag_show_string,
.tstore = NULL,
.kattr = __ATTR(bios_version, RB_SC_RMODE, sc_attr_show, NULL),
}, {
.tag_id = RB_SCID_BOOT_PROTOCOL,
.tshow = sc_tag_show_bootproto,
.tstore = sc_tag_store_bootproto,
.kattr = __ATTR(boot_proto, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_CPU_FREQ_IDX,
.tshow = sc_tag_show_cpufreq_indexes,
.tstore = sc_tag_store_cpufreq_indexes,
.kattr = __ATTR(cpufreq_index, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_BOOTER,
.tshow = sc_tag_show_booter,
.tstore = sc_tag_store_booter,
.kattr = __ATTR(booter, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
}, {
.tag_id = RB_SCID_SILENT_BOOT,
.tshow = sc_tag_show_silent_boot,
.tstore = sc_tag_store_silent_boot,
.kattr = __ATTR(silent_boot, RB_SC_RMODE|RB_SC_WMODE, sc_attr_show, sc_attr_store),
},
};
static ssize_t sc_attr_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
const struct sc_attr *sc_attr;
const u8 *pld;
u16 pld_len;
sc_attr = container_of(attr, typeof(*sc_attr), kattr);
if (!sc_attr->pld_len)
return -ENOENT;
pld = sc_buf + sc_attr->pld_ofs; // pld aliases sc_buf -> lock!
pld_len = sc_attr->pld_len;
return sc_attr->tshow(pld, pld_len, buf);
}
static ssize_t sc_attr_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
const struct sc_attr *sc_attr;
const u8 *pld;
u16 pld_len;
if (!RB_SC_HAS_WRITE_SUPPORT)
return -EOPNOTSUPP;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
sc_attr = container_of(attr, typeof(*sc_attr), kattr);
if (!sc_attr->tstore)
return -EOPNOTSUPP;
if (!sc_attr->pld_len)
return -ENOENT;
pld = sc_buf + sc_attr->pld_ofs; // pld aliases sc_buf -> lock!
pld_len = sc_attr->pld_len;
return sc_attr->tstore(pld, pld_len, buf, count);
}
/*
* Shows the current buffer status:
* "clean": the buffer is in sync with the mtd data
* "dirty": the buffer is out of sync with the mtd data
*/
static ssize_t sc_commit_show(struct kobject *kobj, struct kobj_attribute *attr,
char *buf)
{
const char *str;
char *out = buf;
u32 crc;
read_lock(&sc_bufrwl);
crc = RB_SC_GETCRC();
read_unlock(&sc_bufrwl);
str = (crc) ? "clean" : "dirty";
out += sprintf(out, "%s\n", str);
return out - buf;
}
/*
* Performs buffer flushing:
* This routine expects an input compatible with kstrtobool().
* - a "false" input discards the current changes and reads data back from mtd.
* - a "true" input commits the current changes to mtd.
* If there is no pending changes, this routine is a no-op.
* Handling failures is left as an exercise to userspace.
*/
static ssize_t sc_commit_store(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count)
{
struct mtd_info *mtd;
struct erase_info ei;
size_t bytes_rw, ret = count;
bool flush;
u32 crc;
if (!RB_SC_HAS_WRITE_SUPPORT)
return -EOPNOTSUPP;
read_lock(&sc_bufrwl);
crc = RB_SC_GETCRC();
read_unlock(&sc_bufrwl);
if (crc)
return count; // NO-OP
ret = kstrtobool(buf, &flush);
if (ret)
return ret;
mtd = get_mtd_device_nm(RB_MTD_SOFT_CONFIG); // TODO allow override
if (IS_ERR(mtd))
return -ENODEV;
write_lock(&sc_bufrwl);
if (!flush) // reread
ret = mtd_read(mtd, 0, mtd->size, &bytes_rw, sc_buf);
else { // crc32 + commit
/*
* CRC32 is computed on the entire buffer, excluding the CRC
* value itself. CRC is already null when we reach this point,
* so we can compute the CRC32 on the buffer as is.
* The expected CRC32 is Ethernet FCS style, meaning the seed is
* ~0 and the final result is also bitflipped.
*/
crc = ~crc32(~0, sc_buf, sc_buflen);
RB_SC_SETCRC(crc);
/*
* The soft_config partition is assumed to be entirely contained
* in a single eraseblock.
*/
ei.addr = 0;
ei.len = mtd->size;
ret = mtd_erase(mtd, &ei);
if (!ret)
ret = mtd_write(mtd, 0, mtd->size, &bytes_rw, sc_buf);
/*
* Handling mtd_write() failure here is a tricky situation. The
* proposed approach is to let userspace deal with retrying,
* with the caveat that it must try to flush the buffer again as
* rereading the mtd contents could potentially read garbage.
* The rationale is: even if we keep a shadow buffer of the
* original content, there is no guarantee that we will ever be
* able to write it anyway.
* Regardless, it appears that RouterBOOT will ignore an invalid
* soft_config (including a completely wiped segment) and will
* write back factory defaults when it happens.
*/
}
write_unlock(&sc_bufrwl);
if (ret)
goto mtdfail;
if (bytes_rw != sc_buflen) {
ret = -EIO;
goto mtdfail;
}
return count;
mtdfail:
RB_SC_CLRCRC(); // mark buffer content as dirty/invalid
return ret;
}
static struct kobj_attribute sc_kattrcommit = __ATTR(commit, RB_SC_RMODE|RB_SC_WMODE, sc_commit_show, sc_commit_store);
int __init rb_softconfig_init(struct kobject *rb_kobj)
{
struct mtd_info *mtd;
size_t bytes_read, buflen;
const u8 *buf;
int i, ret;
u32 magic;
sc_buf = NULL;
sc_kobj = NULL;
// TODO allow override
mtd = get_mtd_device_nm(RB_MTD_SOFT_CONFIG);
if (IS_ERR(mtd))
return -ENODEV;
sc_buflen = mtd->size;
sc_buf = kmalloc(sc_buflen, GFP_KERNEL);
if (!sc_buf)
return -ENOMEM;
ret = mtd_read(mtd, 0, sc_buflen, &bytes_read, sc_buf);
if (ret)
goto fail;
if (bytes_read != sc_buflen) {
ret = -EIO;
goto fail;
}
/* Check we have what we expect */
magic = *(const u32 *)sc_buf;
if (RB_MAGIC_SOFT != magic) {
ret = -EINVAL;
goto fail;
}
/* Skip magic and 32bit CRC located immediately after */
buf = sc_buf + (sizeof(magic) + sizeof(u32));
buflen = sc_buflen - (sizeof(magic) + sizeof(u32));
/* Populate sysfs */
ret = -ENOMEM;
sc_kobj = kobject_create_and_add(RB_MTD_SOFT_CONFIG, rb_kobj);
if (!sc_kobj)
goto fail;
rwlock_init(&sc_bufrwl);
/* Locate and publish all known tags */
for (i = 0; i < ARRAY_SIZE(sc_attrs); i++) {
ret = routerboot_tag_find(buf, buflen, sc_attrs[i].tag_id,
&sc_attrs[i].pld_ofs, &sc_attrs[i].pld_len);
if (ret) {
sc_attrs[i].pld_ofs = sc_attrs[i].pld_len = 0;
continue;
}
/* Account for skipped magic and crc32 */
sc_attrs[i].pld_ofs += sizeof(magic) + sizeof(u32);
ret = sysfs_create_file(sc_kobj, &sc_attrs[i].kattr.attr);
if (ret)
pr_warn(RB_SC_PR_PFX "Could not create %s sysfs entry (%d)\n",
sc_attrs[i].kattr.attr.name, ret);
}
/* Finally add the 'commit' attribute */
if (RB_SC_HAS_WRITE_SUPPORT) {
ret = sysfs_create_file(sc_kobj, &sc_kattrcommit.attr);
if (ret) {
pr_err(RB_SC_PR_PFX "Could not create %s sysfs entry (%d), aborting!\n",
sc_kattrcommit.attr.name, ret);
goto sysfsfail; // required attribute
}
}
pr_info("MikroTik RouterBOARD software configuration sysfs driver v" RB_SOFTCONFIG_VER "\n");
return 0;
sysfsfail:
kobject_put(sc_kobj);
sc_kobj = NULL;
fail:
kfree(sc_buf);
sc_buf = NULL;
return ret;
}
void __exit rb_softconfig_exit(void)
{
kobject_put(sc_kobj);
kfree(sc_buf);
}

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@ -0,0 +1,218 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Driver for MikroTik RouterBoot flash data. Common routines.
*
* Copyright (C) 2020 Thibaut VARÈNE <hacks+kernel@slashdirt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sysfs.h>
#include "routerboot.h"
static struct kobject *rb_kobj;
/**
* routerboot_tag_find() - Locate a given tag in routerboot config data.
* @bufhead: the buffer to look into. Must start with a tag node.
* @buflen: size of bufhead
* @tag_id: the tag identifier to look for
* @pld_ofs: will be updated with tag payload offset in bufhead, if tag found
* @pld_len: will be updated with tag payload size, if tag found
*
* This incarnation of tag_find() does only that: it finds a specific routerboot
* tag node in the input buffer. Routerboot tag nodes are u32 values:
* - The low nibble is the tag identification number,
* - The high nibble is the tag payload length (node excluded) in bytes.
* The payload immediately follows the tag node. Tag nodes are 32bit-aligned.
* The returned pld_ofs will always be aligned. pld_len may not end on 32bit
* boundary (the only known case is when parsing ERD data).
* The nodes are cpu-endian on the flash media. The payload is cpu-endian when
* applicable. Tag nodes are not ordered (by ID) on flash.
*
* Return: 0 on success (tag found) or errno
*/
int routerboot_tag_find(const u8 *bufhead, const size_t buflen, const u16 tag_id,
u16 *pld_ofs, u16 *pld_len)
{
const u32 *datum, *bufend;
u32 node;
u16 id, len;
int ret;
if (!bufhead || !tag_id)
return -EINVAL;
ret = -ENOENT;
datum = (const u32 *)bufhead;
bufend = (const u32 *)(bufhead + buflen);
while (datum < bufend) {
node = *datum++;
/* Tag list ends with null node */
if (!node)
break;
id = node & 0xFFFF;
len = node >> 16;
if (tag_id == id) {
if (datum >= bufend)
break;
if (pld_ofs)
*pld_ofs = (u16)((u8 *)datum - bufhead);
if (pld_len)
*pld_len = len;
ret = 0;
break;
}
/*
* The only known situation where len may not end on 32bit
* boundary is within ERD data. Since we're only extracting
* one tag (the first and only one) from that data, we should
* never need to forcefully ALIGN(). Do it anyway, this is not a
* performance path.
*/
len = ALIGN(len, sizeof(*datum));
datum += len / sizeof(*datum);
}
return ret;
}
/**
* routerboot_rle_decode() - Simple RLE (MikroTik variant) decoding routine.
* @in: input buffer to decode
* @inlen: size of in
* @out: output buffer to write decoded data to
* @outlen: pointer to out size when function is called, will be updated with
* size of decoded output on return
*
* MikroTik's variant of RLE operates as follows, considering a signed run byte:
* - positive run => classic RLE
* - negative run => the next -<run> bytes must be copied verbatim
* The API is matched to the lzo1x routines for convenience.
*
* NB: The output buffer cannot overlap with the input buffer.
*
* Return: 0 on success or errno
*/
int routerboot_rle_decode(const u8 *in, size_t inlen, u8 *out, size_t *outlen)
{
int ret, run, nbytes; // use native types for speed
u8 byte;
if (!in || (inlen < 2) || !out)
return -EINVAL;
ret = -ENOSPC;
nbytes = 0;
while (inlen >= 2) {
run = *in++;
inlen--;
/* Verbatim copies */
if (run & 0x80) {
/* Invert run byte sign */
run = ~run & 0xFF;
run++;
if (run > inlen)
goto fail;
inlen -= run;
nbytes += run;
if (nbytes > *outlen)
goto fail;
/* Basic memcpy */
while (run-- > 0)
*out++ = *in++;
}
/* Stream of half-words RLE: <run><byte>. run == 0 is ignored */
else {
byte = *in++;
inlen--;
nbytes += run;
if (nbytes > *outlen)
goto fail;
while (run-- > 0)
*out++ = byte;
}
}
ret = 0;
fail:
*outlen = nbytes;
return ret;
}
static int __init routerboot_init(void)
{
rb_kobj = kobject_create_and_add("mikrotik", firmware_kobj);
if (!rb_kobj)
return -ENOMEM;
/*
* We ignore the following return values and always register.
* These init() routines are designed so that their failed state is
* always manageable by the corresponding exit() calls.
*/
rb_hardconfig_init(rb_kobj);
rb_softconfig_init(rb_kobj);
return 0;
}
static void __exit routerboot_exit(void)
{
rb_softconfig_exit();
rb_hardconfig_exit();
kobject_put(rb_kobj); // recursive afaict
}
/* Common routines */
ssize_t routerboot_tag_show_string(const u8 *pld, u16 pld_len, char *buf)
{
return scnprintf(buf, pld_len+1, "%s\n", pld);
}
ssize_t routerboot_tag_show_u32s(const u8 *pld, u16 pld_len, char *buf)
{
char *out = buf;
u32 data; // cpu-endian
/* Caller ensures pld_len > 0 */
if (pld_len % sizeof(data))
return -EINVAL;
data = *(u32 *)pld;
do {
out += sprintf(out, "0x%08x\n", data);
data++;
} while ((pld_len -= sizeof(data)));
return out - buf;
}
module_init(routerboot_init);
module_exit(routerboot_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("MikroTik RouterBoot sysfs support");
MODULE_AUTHOR("Thibaut VARENE");

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@ -0,0 +1,37 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Common definitions for MikroTik RouterBoot data.
*
* Copyright (C) 2020 Thibaut VARÈNE <hacks+kernel@slashdirt.org>
*/
#ifndef _ROUTERBOOT_H_
#define _ROUTERBOOT_H_
#include <linux/types.h>
// these magic values are stored in cpu-endianness on flash
#define RB_MAGIC_HARD (('H') | ('a' << 8) | ('r' << 16) | ('d' << 24))
#define RB_MAGIC_SOFT (('S') | ('o' << 8) | ('f' << 16) | ('t' << 24))
#define RB_MAGIC_LZOR (('L') | ('Z' << 8) | ('O' << 16) | ('R' << 24))
#define RB_MAGIC_ERD (('E' << 16) | ('R' << 8) | ('D'))
#define RB_ART_SIZE 0x10000
#define RB_MTD_HARD_CONFIG "hard_config"
#define RB_MTD_SOFT_CONFIG "soft_config"
int routerboot_tag_find(const u8 *bufhead, const size_t buflen, const u16 tag_id, u16 *pld_ofs, u16 *pld_len);
int routerboot_rle_decode(const u8 *in, size_t inlen, u8 *out, size_t *outlen);
int __init rb_hardconfig_init(struct kobject *rb_kobj);
void __exit rb_hardconfig_exit(void);
int __init rb_softconfig_init(struct kobject *rb_kobj);
void __exit rb_softconfig_exit(void);
ssize_t routerboot_tag_show_string(const u8 *pld, u16 pld_len, char *buf);
ssize_t routerboot_tag_show_u32s(const u8 *pld, u16 pld_len, char *buf);
#endif /* _ROUTERBOOT_H_ */

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@ -19,7 +19,7 @@ KERNELNAME:=bzImage
include $(INCLUDE_DIR)/target.mk
DEFAULT_PACKAGES += partx-utils mkf2fs fdisk e2fsprogs wpad kmod-usb-hid \
DEFAULT_PACKAGES += partx-utils mkf2fs fdisk e2fsprogs wpad kmod-usb-hid kmod-mmc-spi kmod-sdhci \
kmod-ath5k kmod-ath9k kmod-ath9k-htc kmod-ath10k kmod-rt2800-usb kmod-e1000e kmod-igb kmod-igbvf kmod-ixgbe kmod-pcnet32 kmod-tulip kmod-vmxnet3 kmod-i40e kmod-i40evf kmod-r8125 kmod-8139cp kmod-8139too kmod-fs-f2fs \
htop lm-sensors autocore automount autosamba luci-app-ipsec-vpnd luci-proto-bonding luci-app-unblockmusic luci-app-zerotier luci-app-xlnetacc ddns-scripts_aliyun ddns-scripts_dnspod ca-certificates \
luci-app-airplay2 luci-app-music-remote-center luci-app-qbittorrent luci-app-amule luci-app-openvpn-server \

View File

@ -326,7 +326,6 @@ CONFIG_IRQ_WORK=y
# CONFIG_ISA is not set
CONFIG_ISA_DMA_API=y
# CONFIG_ISCSI_IBFT is not set
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_IT8712F_WDT is not set
# CONFIG_IT87_WDT is not set
# CONFIG_ITCO_WDT is not set
@ -363,6 +362,18 @@ CONFIG_MIGRATION=y
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
CONFIG_MMC=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_CQHCI=y
CONFIG_MMC_DEBUG=y
CONFIG_MMC_RICOH_MMC=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_ACPI=y
CONFIG_MMC_SDHCI_PCI=y
# CONFIG_MMC_SDHCI_PLTFM is not set
CONFIG_MMC_TEST=y
# CONFIG_MMC_TIFM_SD is not set
# CONFIG_MMC_WBSD is not set
# CONFIG_MODIFY_LDT_SYSCALL is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_MODULES_USE_ELF_REL=y
@ -438,6 +449,7 @@ CONFIG_PINCTRL=y
# CONFIG_PINCTRL_GEMINILAKE is not set
# CONFIG_PINCTRL_LEWISBURG is not set
# CONFIG_PINCTRL_SUNRISEPOINT is not set
CONFIG_PLUGIN_HOSTCC="g++"
CONFIG_PMC_ATOM=y
# CONFIG_PMIC_OPREGION is not set
CONFIG_PNP=y
@ -478,6 +490,7 @@ CONFIG_SCx200=y
CONFIG_SCx200HR_TIMER=y
# CONFIG_SCx200_GPIO is not set
# CONFIG_SCx200_WDT is not set
CONFIG_SDIO_UART=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIO=y
@ -552,20 +565,18 @@ CONFIG_X86_CMPXCHG64=y
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
# CONFIG_X86_CPUID is not set
# CONFIG_X86_DEBUG_FPU is not set
CONFIG_X86_DECODER_SELFTEST=n
# CONFIG_X86_DECODER_SELFTEST is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_E_POWERSAVER is not set
CONFIG_X86_F00F_BUG=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_GENERIC=y
# CONFIG_X86_GX_SUSPMOD is not set
# CONFIG_X86_INTEL_MPX is not set
# CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set
CONFIG_X86_INTEL_LPSS=y
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
CONFIG_X86_INTEL_UMIP=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6