aboutsummaryrefslogtreecommitdiffstats
path: root/package/utils/rbextract/src/rbextract.c
diff options
context:
space:
mode:
Diffstat (limited to 'package/utils/rbextract/src/rbextract.c')
-rw-r--r--package/utils/rbextract/src/rbextract.c457
1 files changed, 457 insertions, 0 deletions
diff --git a/package/utils/rbextract/src/rbextract.c b/package/utils/rbextract/src/rbextract.c
new file mode 100644
index 0000000000..0985497f3f
--- /dev/null
+++ b/package/utils/rbextract/src/rbextract.c
@@ -0,0 +1,457 @@
+/*
+ * RouterBoot helper routines
+ *
+ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2018 Chris Schimp <silverchris@gmail.com>
+ * Copyright (C) 2019 Robert Marko <robimarko@gmail.com>
+ *
+ * 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 <stdio.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <string.h>
+#include <endian.h>
+#include <arpa/inet.h>
+
+#include <lzo/lzo1x.h>
+
+#include "rle.h"
+#include "routerboot.h"
+
+inline uint32_t
+get_u32(const void *buf)
+{
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+ return *(uint32_t *)buf;
+#elif __BYTE_ORDER == __BIG_ENDIAN
+ const uint8_t *p = buf;
+ return ((uint32_t) p[3] + ((uint32_t) p[2] << 8) +
+ ((uint32_t) p[1] << 16) + ((uint32_t) p[0] << 24));
+#else
+#error "Unknown byte order!"
+#endif
+}
+
+int
+routerboot_find_tag(uint8_t *buf, unsigned int buflen, uint16_t tag_id,
+ uint8_t **tag_data, uint16_t *tag_len)
+{
+ uint16_t id;
+ uint16_t len;
+ uint32_t magic;
+ bool align = false;
+ int ret;
+
+ if (buflen < 4)
+ return 1;
+
+ magic = get_u32(buf);
+
+ switch (magic) {
+ case RB_MAGIC_LZOR:
+ buf += 4;
+ buflen -= 4;
+ break;
+ case RB_MAGIC_ERD:
+ align = true;
+ /* fall trough */
+ case RB_MAGIC_HARD:
+ /* skip magic value */
+ buf += 4;
+ buflen -= 4;
+ break;
+
+ case RB_MAGIC_SOFT:
+ if (buflen < 8)
+ return 1;
+
+ /* skip magic and CRC value */
+ buf += 8;
+ buflen -= 8;
+
+ break;
+
+ default:
+ return 1;
+ }
+
+ ret = 1;
+ while (buflen > 4){
+ uint32_t id_and_len = get_u32(buf);
+ buf += 4;
+ buflen -= 4;
+ id = id_and_len & 0xFFFF;
+ len = id_and_len >> 16;
+
+ if (align)
+ len += (4 - len % 4) % 4;
+
+ if (id == RB_ID_TERMINATOR) {
+ break;
+ }
+
+ if (buflen < len)
+ break;
+
+ if (id == tag_id) {
+ *tag_len = len;
+ *tag_data = buf;
+ ret = 0;
+ break;
+ }
+
+ buf += len;
+ buflen -= len;
+ }
+
+ return ret;
+}
+
+inline int
+rb_find_hard_cfg_tag(uint16_t tag_id, uint8_t **tag_data, uint16_t *tag_len)
+{
+ if (!rb_hardconfig ||
+ !rb_hardconfig_len)
+ return 1;
+
+ return routerboot_find_tag(rb_hardconfig,
+ rb_hardconfig_len,
+ tag_id, tag_data, tag_len);
+}
+
+const uint8_t *
+rb_get_board_product_code(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_BOARD_PRODUCT_CODE, &tag, &tag_len);
+ if (err)
+ return NULL;
+
+ return tag;
+}
+
+uint32_t
+rb_get_board_mac(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_MAC_ADDRESS_PACK, &tag, &tag_len);
+ if (err)
+ return 0;
+
+ return htonl(get_u32(tag));
+}
+
+const uint8_t *
+rb_get_board_serial(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_SERIAL_NUMBER, &tag, &tag_len);
+ if (err)
+ return NULL;
+
+ return tag;
+}
+
+const uint8_t *
+rb_get_board_identifier(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_BOARD_IDENTIFIER, &tag, &tag_len);
+ if (err)
+ return NULL;
+
+ return tag;
+}
+
+const uint8_t *
+rb_get_board_name(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_BOARD_NAME, &tag, &tag_len);
+ if (err)
+ return NULL;
+
+ return tag;
+}
+
+const uint8_t *
+rb_get_factory_booter_version(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_BIOS_VERSION, &tag, &tag_len);
+ if (err)
+ return NULL;
+
+ return tag;
+}
+
+uint32_t
+rb_get_flash_info(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_FLASH_INFO, &tag, &tag_len);
+ if (err)
+ return 0;
+
+ return htonl(get_u32(tag));
+}
+
+uint32_t
+rb_get_hw_options(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ int err;
+
+ err = rb_find_hard_cfg_tag(RB_ID_HW_OPTIONS, &tag, &tag_len);
+ if (err)
+ return 0;
+
+ return htonl(get_u32(tag));
+}
+
+uint8_t *
+__rb_get_wlan_data(void)
+{
+ uint16_t tag_len;
+ uint8_t *tag;
+ uint16_t erd_tag_len;
+ uint8_t *erd_tag;
+ uint8_t *buf_lzo_in;
+ uint8_t *buf_lzo_out;
+ uint8_t *buf_rle_out;
+ int err;
+ uint32_t magic;
+ uint32_t erd_magic;
+ uint32_t erd_offset;
+ size_t lzo_out_len;
+
+ err = rb_find_hard_cfg_tag(RB_ID_WLAN_DATA, &tag, &tag_len);
+ if (err) {
+ printf("no calibration data found\n");
+ goto err;
+ }
+
+ buf_lzo_in = malloc(RB_ART_SIZE);
+ if (buf_lzo_in == NULL) {
+ printf("no memory for calibration data\n");
+ goto err;
+ }
+
+ buf_rle_out = malloc(RB_ART_SIZE);
+ if (buf_rle_out == NULL) {
+ printf("no memory for calibration data\n");
+ goto err_free_lzo_out;
+ }
+
+ buf_lzo_out = malloc(RB_ART_SIZE);
+ if (buf_lzo_out == NULL) {
+ printf("no memory for calibration data\n");
+ goto err_free_lzo_in;
+ }
+
+ magic = get_u32(tag);
+ if (magic == RB_MAGIC_LZOR) {
+ tag += 4;
+ tag_len -= 4;
+ if (tag_len + sizeof(lzo_prefix) > RB_ART_SIZE) {
+ printf("Calibration data too large\n");
+ goto err_free_lzo_in;
+ }
+ printf("Copying fixed LZO prefix (size: %d)\n", sizeof(lzo_prefix));
+ memcpy(buf_lzo_in, lzo_prefix, sizeof(lzo_prefix));
+
+ printf("Copying input data (size: %d)\n", tag_len);
+ memcpy(buf_lzo_in + sizeof(lzo_prefix), tag, tag_len);
+
+ printf("Decompressing with LZO\n");
+ lzo_out_len = RB_ART_SIZE;
+ err = lzo1x_decompress_safe(buf_lzo_in, tag_len + sizeof(lzo_prefix),
+ buf_lzo_out, &lzo_out_len, NULL);
+ /* For some reason, I get this "input not consumed" error
+ * even though the output is correct, so ignore it. */
+ if (err && err != LZO_E_INPUT_NOT_CONSUMED) {
+ printf("unable to decompress calibration data: %d\n",
+ err);
+ goto err_free_lzo_out;
+ }
+
+ printf("Looking for ERD data in decompressed output\n");
+ erd_magic = 0;
+ for (erd_offset = 0; erd_offset < lzo_out_len; erd_offset++) {
+ erd_magic = get_u32(buf_lzo_out + erd_offset);
+ if (erd_magic == RB_MAGIC_ERD)
+ break;
+ }
+ if (erd_magic != RB_MAGIC_ERD) {
+ printf("no ERD data found\n");
+ goto err_free_lzo_out;
+ }
+ printf("Found ERD magic at offset %d\n", erd_offset);
+
+ err = routerboot_find_tag(buf_lzo_out + erd_offset,
+ lzo_out_len - erd_offset,
+ 0x1, &erd_tag, &erd_tag_len);
+ if (err) {
+ printf("No ERD chunk found\n");
+ goto err_free_lzo_out;
+ }
+
+ printf("Decompress ERD data with RLE\n");
+ err = rle_decode(erd_tag, erd_tag_len, buf_rle_out, RB_ART_SIZE,
+ NULL, NULL);
+ if (err) {
+ printf("unable to decode ERD data\n");
+ goto err_free_rle_out;
+ }
+ }
+
+ return buf_rle_out;
+
+err_free_rle_out:
+ free(buf_rle_out);
+err_free_lzo_out:
+ free(buf_lzo_out);
+err_free_lzo_in:
+ free(buf_lzo_in);
+err:
+ return NULL;
+}
+
+int
+main(int argc, char **argv)
+{
+ FILE *infile;
+ FILE *outfile;
+ uint8_t *buf;
+ uint32_t magic;
+ uint32_t i;
+
+ if(argc < 2){
+ printf("Not enough arguments\n");
+ printf("Use -h for help\n");
+ exit(1);
+ }
+
+ if(strcmp(argv[1], "-h") == 0){
+ printf("This program can extract various data from MikroTik devices hard_config partition\n");
+ printf("Usage: rbextract <options> <hard_config_location> <output_file> (Optional)\n");
+ printf("Options:\n");
+ printf("-a Prints all possible info\n");
+ printf("-n Prints board name\n");
+ printf("-p Prints board product code\n");
+ printf("-i Prints board identifier\n");
+ printf("-s Prints board serial number\n");
+ printf("-m Prints board MAC\n");
+ printf("-o Prints board HW options\n");
+ printf("-r Prints board RouterBoot factory version\n");
+ printf("-f Prints board flash identifier\n");
+ printf("-e Extract board radio calibration\n");
+ printf("hard_config_location: Path to hard_config partiton\n");
+ printf("output_file: Path to where caldata will be output\n");
+ } else {
+ infile = fopen(argv[2], "r");
+
+ if(infile == NULL){
+ printf("Cant open given path\n");
+ return 1;
+ }
+
+ fseek(infile, 0L, SEEK_END);
+ rb_hardconfig_len = ftell(infile);
+
+ fseek(infile, 0L, SEEK_SET);
+
+ rb_hardconfig = (uint8_t*)calloc(rb_hardconfig_len, sizeof(uint8_t));
+ if(rb_hardconfig == NULL)
+ return 1;
+
+ fread(rb_hardconfig, sizeof(uint8_t), rb_hardconfig_len, infile);
+ fclose(infile);
+
+ magic = get_u32(rb_hardconfig);
+ if(magic != RB_MAGIC_HARD){
+ printf("Routerboot Hard Config not found\n");
+ exit(1);
+ }
+
+ if(strcmp(argv[1], "-a") == 0){
+ printf("Board name: %s\n", rb_get_board_name());
+ printf("Board product code: %s\n", rb_get_board_product_code());
+ printf("Board identifier: %s\n", rb_get_board_identifier());
+ printf("Board serial: %s\n", rb_get_board_serial());
+ printf("Board MAC: %X\n", rb_get_board_mac());
+ printf("HW Options %x\n", rb_get_hw_options());
+ printf("Factory RouterBoot version: %s\n", rb_get_factory_booter_version());
+ printf("Flash identifier: %x\n", rb_get_flash_info());
+ } else if(strcmp(argv[1], "-n") == 0){
+ printf("%s\n", rb_get_board_name());
+ } else if(strcmp(argv[1], "-p") == 0){
+ printf("%s\n", rb_get_board_product_code());
+ } else if(strcmp(argv[1], "-i") == 0){
+ printf("%s\n", rb_get_board_identifier());
+ } else if(strcmp(argv[1], "-s") == 0){
+ printf("%s\n", rb_get_board_serial());
+ } else if(strcmp(argv[1], "-m") == 0){
+ printf("%x\n", rb_get_board_mac());
+ } else if(strcmp(argv[1], "-o") == 0){
+ printf("%x\n", rb_get_hw_options());
+ } else if(strcmp(argv[1], "-r") == 0){
+ printf("%s\n", rb_get_factory_booter_version());
+ } else if(strcmp(argv[1], "-f") == 0){
+ printf("%x\n", rb_get_flash_info());
+ } else if(strcmp(argv[1], "-e") == 0){
+ buf = __rb_get_wlan_data();
+ if (buf == NULL) {
+ printf("Could not extract calibration data\n");
+ return 1;
+ }
+
+ if(argv[3] == NULL){
+ printf("Missing output file argument\n");
+ return 1;
+ }
+
+ outfile = fopen(argv[3], "wb");
+ if(outfile == NULL){
+ printf("Cant open given path\n");
+ return 1;
+ }
+
+ /* Write 65536 bytes of caldata */
+ for(i = 0; i<RB_ART_SIZE; i++){
+ fwrite(&buf[i], sizeof(uint8_t), sizeof(uint8_t), outfile);
+ }
+ fclose(outfile);
+ }
+ }
+ exit(0);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 19:41:56 +0000