+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h> /* for unlink() */
-#include <libgen.h>
-#include <getopt.h> /* for getopt() */
-#include <stdarg.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-#include "cyg_crc.h"
-
-#include <arpa/inet.h>
-#include <netinet/in.h>
-
-#define IH_MAGIC 0x27051956 /* Image Magic Number */
-#define IH_NMLEN 32 /* Image Name Length */
-
-#define UM_MAGIC 0x55525F46
-#define UM_HEADER_LEN 12
-
-/*
- * all data in network byte order (aka natural aka bigendian)
- */
-struct u_media_header {
- uint32_t ih_magic; /* Image Header Magic Number */
- uint32_t ih_hcrc; /* Image Header CRC Checksum */
- uint32_t ih_time; /* Image Creation Timestamp */
- uint32_t ih_size; /* Image Data Size */
- uint32_t ih_load; /* Data Load Address */
- uint32_t ih_ep; /* Entry Point Address */
- uint32_t ih_dcrc; /* Image Data CRC Checksum */
- uint8_t ih_os; /* Operating System */
- uint8_t ih_arch; /* CPU architecture */
- uint8_t ih_type; /* Image Type */
- uint8_t ih_comp; /* Compression Type */
- uint8_t ih_name[IH_NMLEN - UM_HEADER_LEN]; /* Image Name */
-
- uint32_t ih_UMedia_magic; /* U-Media magic number */
- uint32_t ih_UMedia_boardID; /* U-Media board ID */
- uint8_t ih_UMedia_imageType; /* U-Media image type */
- uint8_t ih_UMedia_LoadDefault; /* U-Media load to factory default setting */
- uint8_t ih_UMedia_temp1; /* U-Media didn't use this tag */
- uint8_t ih_UMedia_temp2; /* U-Media didn't use this tag */
-} __attribute__ ((packed));
-
-struct if_info {
- char *file_name; /* name of the file */
- uint32_t file_size; /* length of the file */
-};
-
-static char *progname;
-static char *ofname;
-static struct if_info if_info;
-static int factory_defaults;
-static uint32_t board_id;
-static uint8_t image_type;
-
-/*
- * Message macros
- */
-#define ERR(fmt, ...) do { \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt "\n", \
- progname, ## __VA_ARGS__ ); \
-} while (0)
-
-#define ERRS(fmt, ...) do { \
- int save = errno; \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt " (%s)\n", \
- progname, ## __VA_ARGS__, strerror(save)); \
-} while (0)
-
-#define DBG(fmt, ...) do { \
- fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
-} while (0)
-
-static void usage(int status)
-{
- FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
-
- fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
- fprintf(stream,
-"\n"
-"Options:\n"
-" -B <board_id> set board ID to <board_id>\n"
-" -i <file> read input from the file <file>\n"
-" -F load factory defaults\n"
-" -o <file> write output to the file <file>\n"
-" -T <type> set image type to <type>\n"
-" -h show this screen\n"
- );
-
- exit(status);
-}
-
-static int str2u32(char *arg, uint32_t *val)
-{
- char *err = NULL;
- uint32_t t;
-
- errno=0;
- t = strtoul(arg, &err, 0);
- if (errno || (err==arg) || ((err != NULL) && *err)) {
- return -1;
- }
-
- *val = t;
- return 0;
-}
-
-static int str2u8(char *arg, uint8_t *val)
-{
- char *err = NULL;
- uint32_t t;
-
- errno=0;
- t = strtoul(arg, &err, 0);
- if (errno || (err==arg) || ((err != NULL) && *err)) {
- return -1;
- }
-
- if (t > 255)
- return -1;
-
- *val = t;
- return 0;
-}
-
-static int get_file_stat(struct if_info *fdata)
-{
- struct stat st;
- int res;
-
- if (fdata->file_name == NULL)
- return 0;
-
- res = stat(fdata->file_name, &st);
- if (res){
- ERRS("stat failed on %s", fdata->file_name);
- return res;
- }
-
- fdata->file_size = st.st_size;
- return 0;
-}
-
-static int read_to_buf(struct if_info *fdata, char *buf)
-{
- FILE *f;
- int ret = EXIT_FAILURE;
-
- f = fopen(fdata->file_name, "r");
- if (f == NULL) {
- ERRS("could not open \"%s\" for reading", fdata->file_name);
- goto out;
- }
-
- errno = 0;
- fread(buf, fdata->file_size, 1, f);
- if (errno != 0) {
- ERRS("unable to read from file \"%s\"", fdata->file_name);
- goto out_close;
- }
-
- ret = EXIT_SUCCESS;
-
-out_close:
- fclose(f);
-out:
- return ret;
-}
-
-static int check_options(void)
-{
- int ret;
-
- if (ofname == NULL) {
- ERR("no %s specified", "output file");
- return -1;
- }
-
- if (if_info.file_name == NULL) {
- ERR("no %s specified", "input file");
- return -1;
- }
-
- ret = get_file_stat(&if_info);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int write_fw(char *data, int len)
-{
- FILE *f;
- int ret = EXIT_FAILURE;
-
- f = fopen(ofname, "w");
- if (f == NULL) {
- ERRS("could not open \"%s\" for writing", ofname);
- goto out;
- }
-
- errno = 0;
- fwrite(data, len, 1, f);
- if (errno) {
- ERRS("unable to write output file");
- goto out_flush;
- }
-
- ret = EXIT_SUCCESS;
-
-out_flush:
- fflush(f);
- fclose(f);
- if (ret != EXIT_SUCCESS) {
- unlink(ofname);
- }
-out:
- return ret;
-}
-
-static int fix_header(void)
-{
- int buflen;
- char *buf;
- uint32_t crc, crc_orig;
- struct u_media_header *hdr;
- int ret = EXIT_FAILURE;
-
- buflen = if_info.file_size;
- if (buflen < sizeof(*hdr)) {
- ERR("invalid input file\n");
- return ret;
- }
-
- buf = malloc(buflen);
- if (!buf) {
- ERR("no memory for buffer\n");
- goto out;
- }
-
- ret = read_to_buf(&if_info, buf);
- if (ret)
- goto out_free_buf;
-
- hdr = (struct u_media_header *) buf;
- if (ntohl(hdr->ih_magic) != IH_MAGIC) {
- ERR("invalid input file, bad magic\n");
- goto out_free_buf;
- }
-
- /* verify header CRC */
- crc_orig = ntohl(hdr->ih_hcrc);
- hdr->ih_hcrc = 0;
- crc = cyg_ether_crc32((unsigned char *)hdr, sizeof(*hdr));
- if (crc != crc_orig) {
- ERR("invalid input file, bad header CRC\n");
- goto out_free_buf;
- }
-
- hdr->ih_name[IH_NMLEN - UM_HEADER_LEN - 1] = '\0';
-
- /* set U-Media specific fields */
- hdr->ih_UMedia_magic = htonl(UM_MAGIC);
- hdr->ih_UMedia_boardID = htonl(board_id);
- hdr->ih_UMedia_imageType = image_type;
- hdr->ih_UMedia_LoadDefault = (factory_defaults) ? 1 : 0;
-
- /* update header CRC */
- crc = cyg_ether_crc32((unsigned char *)hdr, sizeof(*hdr));
- hdr->ih_hcrc = htonl(crc);
-
- ret = write_fw(buf, buflen);
- if (ret)
- goto out_free_buf;
-
- DBG("U-Media header fixed in \"%s\"", ofname);
-
- ret = EXIT_SUCCESS;
-
-out_free_buf:
- free(buf);
-out:
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- int ret = EXIT_FAILURE;
-
- progname = basename(argv[0]);
-
- while (1) {
- int c;
-
- c = getopt(argc, argv, "B:Fi:o:T:h");
- if (c == -1)
- break;
-
- switch (c) {
- case 'B':
- if (str2u32(optarg, &board_id)) {
- ERR("%s is invalid '%s'",
- "board ID", optarg);
- goto out;
- }
- break;
- case 'T':
- if (str2u8(optarg, &image_type)) {
- ERR("%s is invalid '%s'",
- "image type", optarg);
- goto out;
- }
- break;
- case 'F':
- factory_defaults = 1;
- break;
- case 'i':
- if_info.file_name = optarg;
- break;
- case 'o':
- ofname = optarg;
- break;
- case 'h':
- usage(EXIT_SUCCESS);
- break;
- default:
- usage(EXIT_FAILURE);
- break;
- }
- }
-
- ret = check_options();
- if (ret)
- goto out;
-
- ret = fix_header();
-
-out:
- return ret;
-}
projects / openwrt / staging / mkresin.git / blobdiff