From 1a2eac4b9fbe4e3ccc9ccf78f327877407617f40 Mon Sep 17 00:00:00 2001 From: juhosg Date: Mon, 13 Oct 2008 17:17:19 +0000 Subject: [PATCH] [tools] firmware-utils: new firmware generation tool for the WILIGEAR WBD-111 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12975 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- tools/firmware-utils/Makefile | 3 +- tools/firmware-utils/src/mkfwimage2.c | 447 ++++++++++++++++++++++++++ 2 files changed, 449 insertions(+), 1 deletion(-) create mode 100644 tools/firmware-utils/src/mkfwimage2.c diff --git a/tools/firmware-utils/Makefile b/tools/firmware-utils/Makefile index e0f60c7f9..36a61862c 100644 --- a/tools/firmware-utils/Makefile +++ b/tools/firmware-utils/Makefile @@ -1,5 +1,5 @@ # -# Copyright (C) 2006 OpenWrt.org +# Copyright (C) 2006-2008 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. @@ -30,6 +30,7 @@ define Build/Compile $(call cc,lzma2eva,-lz) $(call cc,mkcasfw) $(call cc,mkfwimage,-lz) + $(call cc,mkfwimage2,-lz) $(call cc,imagetag) $(call cc,add_header) endef diff --git a/tools/firmware-utils/src/mkfwimage2.c b/tools/firmware-utils/src/mkfwimage2.c new file mode 100644 index 000000000..9b050e142 --- /dev/null +++ b/tools/firmware-utils/src/mkfwimage2.c @@ -0,0 +1,447 @@ +/* + * Copyright (C) 2007 Ubiquiti Networks, Inc. + * Copyright (C) 2008 Lukas Kuna + * Copyright (C) 2008 Gabor Juhos + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#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 \t - firmware version information, default: %s\n" + "\t-m \t\t - firmware magic, default: %s\n" + "\t-f \t\t - flash base address, default: 0x%08x\n" + "\t-o \t - firmware output file, default: %s\n" + "\t-p :::::\n " + "\t\t\t\t - create a partition from \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; +} -- 2.35.1