+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (C) 2007 Ubiquiti Networks, Inc.
- * Copyright (C) 2008 Lukas Kuna <ValXdater@seznam.cz>
- * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <string.h>
-#include <errno.h>
-#include <zlib.h>
-#include <sys/mman.h>
-#include <netinet/in.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <limits.h>
-#include "fw.h"
-
-#undef VERSION
-#define VERSION "1.2-OpenWrt.1"
-
-#define MAX_SECTIONS 8
-#define DEFAULT_OUTPUT_FILE "firmware-image.bin"
-#define DEFAULT_VERSION "UNKNOWN"
-#define DEFAULT_FLASH_BASE (0xbfc00000)
-
-#define FIRMWARE_MAX_LENGTH (0x390000)
-
-typedef struct part_data {
- char partition_name[64];
- int partition_index;
- u_int32_t partition_baseaddr;
- u_int32_t partition_offset;
- u_int32_t partition_memaddr;
- u_int32_t partition_entryaddr;
- u_int32_t partition_length;
-
- char filename[PATH_MAX];
- struct stat stats;
-} part_data_t;
-
-typedef struct image_info {
- char version[256];
- char outputfile[PATH_MAX];
- char magic[MAGIC_LENGTH];
- u_int32_t flash_baseaddr;
- u_int32_t part_count;
- part_data_t parts[MAX_SECTIONS];
-} image_info_t;
-
-static image_info_t im;
-static int zero_part_baseaddr = 0;
-
-static void write_header(void* mem, const char* version)
-{
- header_t* header = mem;
- memset(header, 0, sizeof(header_t));
-
- memcpy(header->magic, im.magic, MAGIC_LENGTH);
- strncpy(header->version, version, sizeof(header->version));
- header->crc = htonl(crc32(0L, (unsigned char *)header,
- sizeof(header_t) - 2 * sizeof(u_int32_t)));
- header->pad = 0L;
-}
-
-static void write_signature(void* mem, u_int32_t sig_offset)
-{
- /* write signature */
- signature_t* sign = (signature_t*)(mem + sig_offset);
- memset(sign, 0, sizeof(signature_t));
-
- memcpy(sign->magic, MAGIC_END, MAGIC_LENGTH);
- sign->crc = htonl(crc32(0L,(unsigned char *)mem, sig_offset));
- sign->pad = 0L;
-}
-
-static int write_part(void* mem, part_data_t* d)
-{
- char* addr;
- int fd;
- part_t* p = mem;
- part_crc_t* crc = mem + sizeof(part_t) + d->stats.st_size;
-
- fd = open(d->filename, O_RDONLY);
- if (fd < 0) {
- ERROR("Failed opening file '%s'\n", d->filename);
- return -1;
- }
-
- if ((addr=(char*)mmap(0, d->stats.st_size, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) {
- ERROR("Failed mmaping memory for file '%s'\n", d->filename);
- close(fd);
- return -2;
- }
-
- memcpy(mem + sizeof(part_t), addr, d->stats.st_size);
- munmap(addr, d->stats.st_size);
-
- memset(p->name, 0, sizeof(p->name));
- strncpy(p->magic, MAGIC_PART, MAGIC_LENGTH);
- strncpy(p->name, d->partition_name, sizeof(p->name));
- p->index = htonl(d->partition_index);
- p->data_size = htonl(d->stats.st_size);
- p->part_size = htonl(d->partition_length);
- p->baseaddr = htonl(d->partition_baseaddr);
- p->memaddr = htonl(d->partition_memaddr);
- p->entryaddr = htonl(d->partition_entryaddr);
-
- crc->crc = htonl(crc32(0L, mem, d->stats.st_size + sizeof(part_t)));
- crc->pad = 0L;
-
- return 0;
-}
-
-static void usage(const char* progname)
-{
- INFO("Version %s\n"
- "Usage: %s [options]\n"
- "\t-v <version string>\t - firmware version information, default: %s\n"
- "\t-m <magic>\t\t - firmware magic, default: %s\n"
- "\t-f <flash base>\t\t - flash base address, default: 0x%08x\n"
- "\t-o <output file>\t - firmware output file, default: %s\n"
- "\t-p <name>:<offset>:<len>:<memaddr>:<entry>:<file>\n "
- "\t\t\t\t - create a partition from <file>\n"
- "\t-z\t\t\t - set partition offsets to zero\n"
- "\t-h\t\t\t - this help\n",
- VERSION, progname, DEFAULT_VERSION, MAGIC_HEADER,
- DEFAULT_FLASH_BASE, DEFAULT_OUTPUT_FILE);
-}
-
-static void print_image_info(void)
-{
- int i;
-
- INFO("Firmware version : '%s'\n"
- "Output file : '%s'\n"
- "Part count : %u\n",
- im.version, im.outputfile, im.part_count);
-
- for (i = 0; i < im.part_count; ++i) {
- const part_data_t* d = &im.parts[i];
- INFO(" %10s: %08x %08x %08x %08x %8ld bytes (free: %8ld)\n",
- d->partition_name,
- d->partition_baseaddr,
- d->partition_length,
- d->partition_entryaddr,
- d->partition_memaddr,
- d->stats.st_size,
- d->partition_length - d->stats.st_size);
- }
-}
-
-static int filelength(const char* file)
-{
- FILE *p;
- int ret = -1;
-
- if ( (p = fopen(file, "rb") ) == NULL) return (-1);
-
- fseek(p, 0, SEEK_END);
- ret = ftell(p);
-
- fclose (p);
-
- return (ret);
-}
-
-int str2u32(char *arg, u_int32_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;
-}
-
-#ifndef STRINGIFY
-#define STRINGIFY2(X) #X
-#define STRINGIFY(X) STRINGIFY2(X)
-#endif
-static int image_layout_add_partition(const char *part_desc)
-{
- part_data_t *d;
- char memaddr[16];
- char entryaddr[16];
- char offset[16];
- char length[16];
- int t;
-
- if (im.part_count >= MAX_SECTIONS) {
- ERROR("Too many partitions specified\n");
- return (-1);
- }
-
- d = &im.parts[im.part_count];
- t = sscanf(part_desc, "%15[-0-9a-zA-Z]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%"STRINGIFY(PATH_MAX)"s",
- d->partition_name,
- offset,
- length,
- memaddr,
- entryaddr,
- d->filename);
-
- if (t != 6) {
- ERROR("Bad partition parameter %d, '%s'\n", t, part_desc);
- return (-1);
- }
-
- if (strlen(d->partition_name) == 0) {
- ERROR("No partition name specified in '%s'\n", part_desc);
- return (-1);
- }
-
- if (str2u32(offset, &d->partition_offset)) {
- ERROR("Bad offset value '%s'\n", offset);
- return (-1);
- }
-
- if (str2u32(length, &d->partition_length)) {
- ERROR("Bad length value '%s'\n", length);
- return (-1);
- }
-
- if (d->partition_length == 0) {
- int flen;
- flen = filelength(d->filename);
- if (flen < 0) {
- ERROR("Unable to determine size of '%s'\n",
- d->filename);
- return (-1);
- }
- d->partition_length = flen;
- }
-
- if (str2u32(memaddr, &d->partition_memaddr)) {
- ERROR("Bad memaddr vaule '%s'\n", memaddr);
- return (-1);
- }
-
- if (str2u32(entryaddr, &d->partition_entryaddr)) {
- ERROR("Bad entry address value '%s'\n", entryaddr);
- return (-1);
- }
-
- im.part_count++;
- d->partition_index = im.part_count;
-
- return 0;
-}
-
-static int image_layout_verify(void)
-{
- u_int32_t offset;
- int i;
-
- if (im.part_count == 0) {
- ERROR("No partitions specified\n");
- return -1;
- }
-
- offset = im.parts[0].partition_offset;
- for (i = 0; i < im.part_count; i++)
- {
- part_data_t* d = &im.parts[i];
-
- if (stat(d->filename, &d->stats) < 0) {
- ERROR("Couldn't stat file '%s' from part '%s'\n",
- d->filename, d->partition_name);
- return -2;
- }
-
- if (d->stats.st_size == 0) {
- ERROR("File '%s' from part '%s' is empty!\n",
- d->filename, d->partition_name);
- return -3;
- }
-
- if (d->stats.st_size > d->partition_length) {
- ERROR("File '%s' too big (%d) - max size: 0x%08X (exceeds %lu bytes)\n",
- d->filename, i, d->partition_length,
- d->stats.st_size - d->partition_length);
- return -4;
- }
-
- if (d->partition_offset < offset)
- d->partition_offset = offset;
-
- if (zero_part_baseaddr) {
- d->partition_baseaddr = 0;
- } else {
- d->partition_baseaddr =
- im.flash_baseaddr + d->partition_offset;
- }
- offset += d->partition_length;
- }
-
- return 0;
-}
-
-static int build_image(void)
-{
- char* mem;
- char* ptr;
- u_int32_t mem_size;
- FILE* f;
- int i;
-
- /* build in-memory buffer */
- mem_size = sizeof(header_t) + sizeof(signature_t);
- for (i = 0; i < im.part_count; ++i) {
- part_data_t* d = &im.parts[i];
- mem_size += sizeof(part_t) + d->stats.st_size + sizeof(part_crc_t);
- }
-
- mem = (char*)calloc(mem_size, 1);
- if (mem == NULL) {
- ERROR("Cannot allocate memory chunk of size '%u'\n", mem_size);
- return -1;
- }
-
- /* write header */
- write_header(mem, im.version);
- ptr = mem + sizeof(header_t);
-
- /* write all parts */
- for (i = 0; i < im.part_count; ++i) {
- part_data_t* d = &im.parts[i];
- int rc;
- if ((rc = write_part(ptr, d)) != 0) {
- ERROR("ERROR: failed writing part %u '%s'\n", i, d->partition_name);
- return -1;
- }
- ptr += sizeof(part_t) + d->stats.st_size + sizeof(part_crc_t);
- }
-
-
- /* write signature */
- write_signature(mem, mem_size - sizeof(signature_t));
-
- /* write in-memory buffer into file */
- if ((f = fopen(im.outputfile, "w")) == NULL) {
- ERROR("Can not create output file: '%s'\n", im.outputfile);
- free(mem);
- return -10;
- }
-
- if (fwrite(mem, mem_size, 1, f) != 1) {
- ERROR("Could not write %d bytes into file: '%s'\n",
- mem_size, im.outputfile);
- free(mem);
- fclose(f);
- return -11;
- }
-
- free(mem);
- fclose(f);
- return 0;
-}
-
-int main(int argc, char* argv[])
-{
- int o, rc;
-
- memset(&im, 0, sizeof(im));
-
- strcpy(im.outputfile, DEFAULT_OUTPUT_FILE);
- strcpy(im.version, DEFAULT_VERSION);
- memcpy(im.magic, MAGIC_HEADER, MAGIC_LENGTH);
- im.flash_baseaddr = DEFAULT_FLASH_BASE;
-
- while ((o = getopt(argc, argv, "f:hm:o:p:v:z")) != -1)
- {
- switch (o) {
- case 'f':
- if (optarg)
- if (str2u32(optarg, &im.flash_baseaddr)) {
- ERROR("Invalid flash start address %s\n", optarg);
- return -1;
- }
- break;
- case 'h':
- usage(argv[0]);
- return -1;
- case 'm':
- if (optarg) {
- if (strlen(optarg) != MAGIC_LENGTH) {
- ERROR("Invalid magic %s\n", optarg);
- return -1;
- }
-
- memcpy(im.magic, optarg, MAGIC_LENGTH);
- }
- break;
- case 'o':
- if (optarg)
- strncpy(im.outputfile, optarg, sizeof(im.outputfile));
- break;
- case 'p':
- if (optarg) {
- if (image_layout_add_partition(optarg))
- return -1;
- }
- break;
- case 'v':
- if (optarg)
- strncpy(im.version, optarg, sizeof(im.version));
- break;
- case 'z':
- zero_part_baseaddr = 1;
- break;
- }
- }
-
- rc = image_layout_verify();
- if (rc) {
- ERROR("Failed validating firmware layout - error code: %d\n",
- rc);
- return -4;
- }
-
- print_image_info();
-
- rc = build_image();
- if (rc) {
- ERROR("Failed building image file '%s' - error code: %d\n",
- im.outputfile, rc);
- return -5;
- }
-
- return 0;
-}
projects / openwrt / openwrt.git / blobdiff