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-rw-r--r--tools/firmware-utils/src/buffalo-enc.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/tools/firmware-utils/src/buffalo-enc.c b/tools/firmware-utils/src/buffalo-enc.c
deleted file mode 100644
index dec226823b..0000000000
--- a/tools/firmware-utils/src/buffalo-enc.c
+++ /dev/null
@@ -1,318 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <libgen.h>
-#include <getopt.h> /* for getopt() */
-#include <stdarg.h>
-
-#include "buffalo-lib.h"
-
-#define ERR(fmt, args...) do { \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt "\n", \
- progname, ## args ); \
-} while (0)
-
-static char *progname;
-static char *ifname;
-static char *ofname;
-static char *crypt_key = "Buffalo";
-static char *magic = "start";
-static int longstate;
-static unsigned char seed = 'O';
-
-static char *product;
-static char *version;
-static int do_decrypt;
-static int offset;
-static int size;
-
-void usage(int status)
-{
- FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
-
- fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
- fprintf(stream,
-"\n"
-"Options:\n"
-" -d decrypt instead of encrypt\n"
-" -i <file> read input from the file <file>\n"
-" -o <file> write output to the file <file>\n"
-" -l use longstate {en,de}cryption method\n"
-" -k <key> use <key> for encryption (default: Buffalo)\n"
-" -m <magic> set magic to <magic>\n"
-" -p <product> set product name to <product>\n"
-" -v <version> set version to <version>\n"
-" -h show this screen\n"
-" -O Offset of encrypted data in file (decryption)\n"
-" -S Size of unencrypted data in file (encryption)\n"
- );
-
- exit(status);
-}
-
-static int decrypt_file(void)
-{
- struct enc_param ep;
- ssize_t src_len;
- unsigned char *buf = NULL;
- int err;
- int ret = -1;
-
- src_len = get_file_size(ifname);
- if (src_len < 0) {
- ERR("unable to get size of '%s'", ifname);
- goto out;
- }
-
- buf = malloc(src_len);
- if (buf == NULL) {
- ERR("no memory for the buffer");
- goto out;
- }
-
- err = read_file_to_buf(ifname, buf, src_len);
- if (err) {
- ERR("unable to read from file '%s'", ifname);
- goto out;
- }
-
- memset(&ep, '\0', sizeof(ep));
- ep.key = (unsigned char *) crypt_key;
- ep.longstate = longstate;
-
- err = decrypt_buf(&ep, buf + offset, src_len - offset);
- if (err) {
- ERR("unable to decrypt '%s'", ifname);
- goto out;
- }
-
- printf("Magic\t\t: '%s'\n", ep.magic);
- printf("Seed\t\t: 0x%02x\n", ep.seed);
- printf("Product\t\t: '%s'\n", ep.product);
- printf("Version\t\t: '%s'\n", ep.version);
- printf("Data len\t: %u\n", ep.datalen);
- printf("Checksum\t: 0x%08x\n", ep.csum);
-
- err = write_buf_to_file(ofname, buf + offset, ep.datalen);
- if (err) {
- ERR("unable to write to file '%s'", ofname);
- goto out;
- }
-
- ret = 0;
-
-out:
- free(buf);
- return ret;
-}
-
-static int encrypt_file(void)
-{
- struct enc_param ep;
- ssize_t src_len, tail_dst, tail_len, tail_src;
- unsigned char *buf;
- uint32_t hdrlen;
- ssize_t totlen = 0;
- int err;
- int ret = -1;
-
- src_len = get_file_size(ifname);
- if (src_len < 0) {
- ERR("unable to get size of '%s'", ifname);
- goto out;
- }
-
- if (size) {
- tail_dst = enc_compute_buf_len(product, version, size);
- tail_len = src_len - size;
- totlen = tail_dst + tail_len;
- } else
- totlen = enc_compute_buf_len(product, version, src_len);
-
- buf = malloc(totlen);
- if (buf == NULL) {
- ERR("no memory for the buffer");
- goto out;
- }
-
- hdrlen = enc_compute_header_len(product, version);
-
- err = read_file_to_buf(ifname, &buf[hdrlen], src_len);
- if (err) {
- ERR("unable to read from file '%s'", ofname);
- goto free_buf;
- }
-
- if (size) {
- tail_src = hdrlen + size;
- memmove(&buf[tail_dst], &buf[tail_src], tail_len);
- memset(&buf[tail_src], 0, tail_dst - tail_src);
- src_len = size;
- }
-
- memset(&ep, '\0', sizeof(ep));
- ep.key = (unsigned char *) crypt_key;
- ep.seed = seed;
- ep.longstate = longstate;
- ep.csum = buffalo_csum(src_len, &buf[hdrlen], src_len);
- ep.datalen = src_len;
- strcpy((char *) ep.magic, magic);
- strcpy((char *) ep.product, product);
- strcpy((char *) ep.version, version);
-
- err = encrypt_buf(&ep, buf, &buf[hdrlen]);
- if (err) {
- ERR("invalid input file");
- goto free_buf;
- }
-
- err = write_buf_to_file(ofname, buf, totlen);
- if (err) {
- ERR("unable to write to file '%s'", ofname);
- goto free_buf;
- }
-
- ret = 0;
-
-free_buf:
- free(buf);
-out:
- return ret;
-}
-
-static int check_params(void)
-{
- int ret = -1;
-
- if (ifname == NULL) {
- ERR("no input file specified");
- goto out;
- }
-
- if (ofname == NULL) {
- ERR("no output file specified");
- goto out;
- }
-
- if (crypt_key == NULL) {
- ERR("no key specified");
- goto out;
- } else if (strlen(crypt_key) > BCRYPT_MAX_KEYLEN) {
- ERR("key '%s' is too long", crypt_key);
- goto out;
- }
-
- if (strlen(magic) != (ENC_MAGIC_LEN - 1)) {
- ERR("length of magic must be %d", ENC_MAGIC_LEN - 1);
- goto out;
- }
-
- if (!do_decrypt) {
- if (product == NULL) {
- ERR("no product specified");
- goto out;
- }
-
- if (version == NULL) {
- ERR("no version specified");
- goto out;
- }
-
- if (strlen(product) > (ENC_PRODUCT_LEN - 1)) {
- ERR("product name '%s' is too long", product);
- goto out;
- }
-
- if (strlen(version) > (ENC_VERSION_LEN - 1)) {
- ERR("version '%s' is too long", version);
- goto out;
- }
- }
-
- ret = 0;
-
-out:
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- int res = EXIT_FAILURE;
- int err;
-
- progname = basename(argv[0]);
-
- while ( 1 ) {
- int c;
-
- c = getopt(argc, argv, "adi:m:o:hlp:v:k:O:r:s:S:");
- if (c == -1)
- break;
-
- switch (c) {
- case 'd':
- do_decrypt = 1;
- break;
- case 'i':
- ifname = optarg;
- break;
- case 'l':
- longstate = 1;
- break;
- case 'm':
- magic = optarg;
- break;
- case 'o':
- ofname = optarg;
- break;
- case 'p':
- product = optarg;
- break;
- case 'v':
- version = optarg;
- break;
- case 'k':
- crypt_key = optarg;
- break;
- case 's':
- seed = strtoul(optarg, NULL, 16);
- break;
- case 'O':
- offset = strtoul(optarg, NULL, 0);
- break;
- case 'S':
- size = strtoul(optarg, NULL, 0);
- break;
- case 'h':
- usage(EXIT_SUCCESS);
- break;
- default:
- usage(EXIT_FAILURE);
- break;
- }
- }
-
- err = check_params();
- if (err)
- goto out;
-
- if (do_decrypt)
- err = decrypt_file();
- else
- err = encrypt_file();
-
- if (err)
- goto out;
-
- res = EXIT_SUCCESS;
-
-out:
- return res;
-}