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authorVitaly Chekryzhev <13hakta@gmail.com>2016-10-29 17:26:58 +0500
committerMathias Kresin <dev@kresin.me>2016-11-17 20:01:21 +0100
commita4814c744ce4aae6fbf62621d9c62476ca5ce28d (patch)
tree3429e87776ac30b38364e13b620c8261208a979c /tools/firmware-utils/src
parent4545a60edb63ad61baf9903de7cf69f4d4f0b152 (diff)
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firmware-utils: add tool to create zyxel images
Signed-off-by: Vitaly Chekryzhev <13hakta@gmail.com> [moved to firmware-utils package] [dropped the compiled binary] Signed-off-by: Mathias Kresin <dev@kresin.me>
Diffstat (limited to 'tools/firmware-utils/src')
-rw-r--r--tools/firmware-utils/src/zyimage.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/tools/firmware-utils/src/zyimage.c b/tools/firmware-utils/src/zyimage.c
new file mode 100644
index 0000000000..6aacf2ff1b
--- /dev/null
+++ b/tools/firmware-utils/src/zyimage.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2014 Soul Trace <S-trace@list.ru>
+ *
+ * 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.
+ *
+ */
+
+#define _POSIX_SOURCE
+#define _POSIX_C_SOURCE 199309L /* getopt */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <string.h>
+#include <unistd.h>
+
+#define szbuf 32768
+
+u_int32_t crc_tab[256];
+
+u_int32_t chksum_crc32 (FILE *f)
+{
+ register unsigned long crc;
+ unsigned long i, j;
+ char *buffer = malloc(szbuf);
+ char *buf;
+
+ crc = 0xFFFFFFFF;
+ while (!feof(f))
+ {
+ j = fread(buffer, 1, szbuf, f);
+ buf = buffer;
+ for (i = 0; i < j; i++)
+ crc = ((crc >> 8) & 0x00FFFFFF) ^ crc_tab[(crc ^ *buf++) & 0xFF];
+ }
+ free(buffer);
+ return crc;
+}
+
+void chksum_crc32gentab ()
+{
+ unsigned long crc, poly;
+ int i, j;
+
+ poly = 0xEDB88320L;
+ for (i = 0; i < 256; i++)
+ {
+ crc = i;
+ for (j = 8; j > 0; j--)
+ {
+ if (crc & 1)
+ crc = (crc >> 1) ^ poly;
+ else
+ crc >>= 1;
+ }
+ crc_tab[i] = crc;
+ }
+}
+
+void usage(char *progname)
+{
+ printf("Usage: %s [ -v Version ] [ -d Device_ID ] <input file>\n", progname);
+ exit(1);
+}
+
+int main(int argc, char *argv[]) {
+ struct signature
+ {
+ const char magic[4];
+ unsigned int device_id;
+ char firmware_version[48];
+ unsigned int crc32;
+ }
+ sign =
+ {
+ { 'Z', 'N', 'B', 'G' },
+ 1,
+ { "V.1.0.0(1.0.0)" },
+ 0
+ };
+ FILE *f;
+ struct signature oldsign;
+ char *filename;
+ static const char *optString;
+ int opt;
+
+ if (argc < 1)
+ usage(argv[0]);
+
+ optString = "v:d:h";
+ opt = getopt( argc, argv, optString );
+ while( opt != -1 ) {
+ switch( opt ) {
+ case 'v':
+ if (optarg == NULL)
+ usage(argv[0]);
+ strncpy(sign.firmware_version, optarg, sizeof(sign.firmware_version)-1);
+ sign.firmware_version[sizeof(sign.firmware_version)-1]='\0'; /* Make sure that string is terminated correctly */
+ break;
+
+ case 'd':
+ sign.device_id = atoi(optarg);
+ if (sign.device_id == 0)
+ sign.device_id = (int)strtol(optarg, NULL, 16);
+ break;
+
+ case '?':
+ case 'h':
+ usage(argv[0]);
+ break;
+
+ default:
+ break;
+ }
+
+ opt = getopt( argc, argv, optString );
+ }
+
+ chksum_crc32gentab();
+
+ filename=argv[optind];
+ if (access(filename, W_OK) || access(filename, R_OK))
+ {
+ printf("Not open input file %s\n", filename);
+ exit(1);
+ }
+ f = fopen(argv[optind], "r+");
+ if (f != NULL)
+ {
+ fseek(f, sizeof(sign)*-1, SEEK_END);
+ fread(&oldsign, sizeof(oldsign), 1, f);
+
+ if (strncmp(oldsign.magic,"ZNBG", sizeof(oldsign.magic)) == 0 )
+ {
+ printf("Image is already signed as:\nDevice ID: 0x%08x\nFirmware version: %s\nImage CRC32: 0x%x\n", oldsign.device_id, oldsign.firmware_version, oldsign.crc32);
+ exit(0);
+ }
+
+ fseek(f, 0, SEEK_SET);
+ sign.crc32 = chksum_crc32(f);
+ fwrite(&sign, sizeof(sign), 1, f);
+ fclose(f);
+
+ printf("Image signed as:\nDevice ID: 0x%08x\nFirmware version: %s\nImage CRC32: 0x%x\n", sign.device_id, sign.firmware_version, sign.crc32);
+ }
+ return 0;
+}