firmware-utils: new firmware generation tool for the WILIGEAR WBD-111

SVN-Revision: 12975

1 files changed, 447 insertions, 0 deletions

diff --git a/tools/firmware-utils/src/mkfwimage2.c b/tools/firmware-utils/src/mkfwimage2.c
new file mode 100644
index 0000000..9b050e1
--- /dev/null
+++ b/tools/firmware-utils/src/mkfwimage2.c
@@ -0,0 +1,447 @@
+/*
+ * 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;
+}