--- /dev/null
+/*
+ * Copyright (C) 2007 Ubiquiti Networks, Inc.
+ * Copyright (C) 2008 Lukas Kuna <ValXdater@seznam.cz>
+ * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#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 debug = 0;
+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;
+}
+
+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[a-zA-Z]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%15[0-9a-fA-Fx]:%256s",
+ 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);
+ return -10;
+ }
+
+ if (fwrite(mem, mem_size, 1, f) != 1) {
+ ERROR("Could not write %d bytes into file: '%s'\n",
+ mem_size, im.outputfile);
+ 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;
+}
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