#include <errno.h>
#include <sys/stat.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
#include "md5.h"
-#if (__BYTE_ORDER == __BIG_ENDIAN)
-# define HOST_TO_BE32(x) (x)
-# define BE32_TO_HOST(x) (x)
-#else
-# define HOST_TO_BE32(x) bswap_32(x)
-# define BE32_TO_HOST(x) bswap_32(x)
-#endif
+#define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
#define HEADER_VERSION_V1 0x01000000
#define HWID_TL_MR3220_V1 0x32200001
#define HWID_TL_WA901ND_V2 0x09010002
#define HWID_TL_WR703N_V1 0x07030101
#define HWID_TL_WR741ND_V1 0x07410001
+#define HWID_TL_WR741ND_V4 0x07410004
#define HWID_TL_WR740N_V1 0x07400001
-#define HWID_TL_WR740N_V3 0x07400300
+#define HWID_TL_WR740N_V3 0x07400003
#define HWID_TL_WR743ND_V1 0x07430001
#define HWID_TL_WR841N_V1_5 0x08410002
#define HWID_TL_WR841ND_V3 0x08410003
static struct file_info kernel_info;
static uint32_t kernel_la = 0;
static uint32_t kernel_ep = 0;
+static uint32_t kernel_len = 0;
static struct file_info rootfs_info;
static uint32_t rootfs_ofs = 0;
+static uint32_t rootfs_align;
static struct file_info boot_info;
static int combined;
static int strip_padding;
.kernel_la = 0x80060000,
.kernel_ep = 0x80060000,
.rootfs_ofs = 0x140000,
+ }, {
+ .id = "TL-WR741NDv4",
+ .hw_id = HWID_TL_WR741ND_V4,
+ .hw_rev = 1,
+ .fw_max_len = 0x3c0000,
+ .kernel_la = 0x80060000,
+ .kernel_ep = 0x80060000,
+ .rootfs_ofs = 0x100000,
}, {
.id = "TL-WR740Nv1",
.hw_id = HWID_TL_WR740N_V1,
" -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
" -k <file> read kernel image from the file <file>\n"
" -r <file> read rootfs image from the file <file>\n"
+" -a <align> align the rootfs start on an <align> bytes boundary\n"
" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
" -o <file> write output to the file <file>\n"
" -s strip padding from the end of the image\n"
if (ret)
return ret;
+ kernel_len = kernel_info.file_size;
+
if (combined) {
if (kernel_info.file_size >
board->fw_max_len - sizeof(struct fw_header)) {
return -1;
}
} else {
- if (kernel_info.file_size >
- rootfs_ofs - sizeof(struct fw_header)) {
- ERR("kernel image is too big");
- return -1;
- }
if (rootfs_info.file_name == NULL) {
ERR("no rootfs image specified");
return -1;
if (ret)
return ret;
- if (rootfs_info.file_size >
- (board->fw_max_len - rootfs_ofs)) {
- ERR("rootfs image is too big");
- return -1;
+ if (rootfs_align) {
+ kernel_len += sizeof(struct fw_header);
+ kernel_len = ALIGN(kernel_len, rootfs_align);
+ kernel_len -= sizeof(struct fw_header);
+
+ DBG("kernel length aligned to %u", kernel_len);
+
+ if (kernel_len + rootfs_info.file_size >
+ board->fw_max_len - sizeof(struct fw_header)) {
+ ERR("images are too big");
+ return -1;
+ }
+ } else {
+ if (kernel_info.file_size >
+ rootfs_ofs - sizeof(struct fw_header)) {
+ ERR("kernel image is too big");
+ return -1;
+ }
+
+ if (rootfs_info.file_size >
+ (board->fw_max_len - rootfs_ofs)) {
+ ERR("rootfs image is too big");
+ return -1;
+ }
}
}
memset(hdr, 0, sizeof(struct fw_header));
- hdr->version = HOST_TO_BE32(HEADER_VERSION_V1);
+ hdr->version = htonl(HEADER_VERSION_V1);
strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
- hdr->hw_id = HOST_TO_BE32(board->hw_id);
- hdr->hw_rev = HOST_TO_BE32(board->hw_rev);
+ hdr->hw_id = htonl(board->hw_id);
+ hdr->hw_rev = htonl(board->hw_rev);
if (boot_info.file_size == 0)
memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
else
memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
- hdr->kernel_la = HOST_TO_BE32(kernel_la);
- hdr->kernel_ep = HOST_TO_BE32(kernel_ep);
- hdr->fw_length = HOST_TO_BE32(board->fw_max_len);
- hdr->kernel_ofs = HOST_TO_BE32(sizeof(struct fw_header));
- hdr->kernel_len = HOST_TO_BE32(kernel_info.file_size);
+ hdr->kernel_la = htonl(kernel_la);
+ hdr->kernel_ep = htonl(kernel_ep);
+ hdr->fw_length = htonl(board->fw_max_len);
+ hdr->kernel_ofs = htonl(sizeof(struct fw_header));
+ hdr->kernel_len = htonl(kernel_len);
if (!combined) {
- hdr->rootfs_ofs = HOST_TO_BE32(rootfs_ofs);
- hdr->rootfs_len = HOST_TO_BE32(rootfs_info.file_size);
+ hdr->rootfs_ofs = htonl(rootfs_ofs);
+ hdr->rootfs_len = htonl(rootfs_info.file_size);
}
get_md5(buf, len, hdr->md5sum1);
if (ret)
goto out_free_buf;
- writelen = kernel_info.file_size;
+ writelen = sizeof(struct fw_header) + kernel_len;
if (!combined) {
- p = buf + rootfs_ofs;
+ if (rootfs_align)
+ p = buf + writelen;
+ else
+ p = buf + rootfs_ofs;
ret = read_to_buf(&rootfs_info, p);
if (ret)
goto out_free_buf;
- writelen = rootfs_ofs + rootfs_info.file_size;
+ if (rootfs_align)
+ writelen += rootfs_info.file_size;
+ else
+ writelen = rootfs_ofs + rootfs_info.file_size;
}
if (!strip_padding)
inspect_fw_pstr("File name", inspect_info.file_name);
inspect_fw_phexdec("File size", inspect_info.file_size);
- if (BE32_TO_HOST(hdr->version) != HEADER_VERSION_V1) {
+ if (ntohl(hdr->version) != HEADER_VERSION_V1) {
ERR("file does not seem to have V1 header!\n");
goto out_free_buf;
}
inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
- if (BE32_TO_HOST(hdr->unk1) != 0)
+ if (ntohl(hdr->unk1) != 0)
inspect_fw_phexdec("Unknown value 1", hdr->unk1);
memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
- if (BE32_TO_HOST(hdr->boot_len) == 0)
+ if (ntohl(hdr->boot_len) == 0)
memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
else
memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
} else {
inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
}
- if (BE32_TO_HOST(hdr->unk2) != 0)
+ if (ntohl(hdr->unk2) != 0)
inspect_fw_phexdec("Unknown value 2", hdr->unk2);
inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
"(purpose yet unknown, unchecked here)");
- if (BE32_TO_HOST(hdr->unk3) != 0)
+ if (ntohl(hdr->unk3) != 0)
inspect_fw_phexdec("Unknown value 3", hdr->unk3);
printf("\n");
inspect_fw_pstr("Vendor name", hdr->vendor_name);
inspect_fw_pstr("Firmware version", hdr->fw_version);
- board = find_board_by_hwid(BE32_TO_HOST(hdr->hw_id));
+ board = find_board_by_hwid(ntohl(hdr->hw_id));
if (board) {
inspect_fw_phexpost("Hardware ID",
- BE32_TO_HOST(hdr->hw_id), board->id);
+ ntohl(hdr->hw_id), board->id);
inspect_fw_phexexp("Hardware Revision",
- BE32_TO_HOST(hdr->hw_rev), board->hw_rev);
+ ntohl(hdr->hw_rev), board->hw_rev);
} else {
inspect_fw_phexpost("Hardware ID",
- BE32_TO_HOST(hdr->hw_id), "unknown");
+ ntohl(hdr->hw_id), "unknown");
inspect_fw_phex("Hardware Revision",
- BE32_TO_HOST(hdr->hw_rev));
+ ntohl(hdr->hw_rev));
}
printf("\n");
inspect_fw_phexdec("Kernel data offset",
- BE32_TO_HOST(hdr->kernel_ofs));
+ ntohl(hdr->kernel_ofs));
inspect_fw_phexdec("Kernel data length",
- BE32_TO_HOST(hdr->kernel_len));
+ ntohl(hdr->kernel_len));
if (board) {
inspect_fw_phexdef("Kernel load address",
- BE32_TO_HOST(hdr->kernel_la),
+ ntohl(hdr->kernel_la),
board->kernel_la);
inspect_fw_phexdef("Kernel entry point",
- BE32_TO_HOST(hdr->kernel_ep),
+ ntohl(hdr->kernel_ep),
board->kernel_ep);
inspect_fw_phexdecdef("Rootfs data offset",
- BE32_TO_HOST(hdr->rootfs_ofs),
+ ntohl(hdr->rootfs_ofs),
board->rootfs_ofs);
} else {
inspect_fw_phex("Kernel load address",
- BE32_TO_HOST(hdr->kernel_la));
+ ntohl(hdr->kernel_la));
inspect_fw_phex("Kernel entry point",
- BE32_TO_HOST(hdr->kernel_ep));
+ ntohl(hdr->kernel_ep));
inspect_fw_phexdec("Rootfs data offset",
- BE32_TO_HOST(hdr->rootfs_ofs));
+ ntohl(hdr->rootfs_ofs));
}
inspect_fw_phexdec("Rootfs data length",
- BE32_TO_HOST(hdr->rootfs_len));
+ ntohl(hdr->rootfs_len));
inspect_fw_phexdec("Boot loader data offset",
- BE32_TO_HOST(hdr->boot_ofs));
+ ntohl(hdr->boot_ofs));
inspect_fw_phexdec("Boot loader data length",
- BE32_TO_HOST(hdr->boot_len));
+ ntohl(hdr->boot_len));
inspect_fw_phexdec("Total firmware length",
- BE32_TO_HOST(hdr->fw_length));
+ ntohl(hdr->fw_length));
if (extract) {
FILE *fp;
printf("Extracting kernel to \"%s\"...\n", filename);
fp = fopen(filename, "w");
if (fp) {
- if (!fwrite(buf + BE32_TO_HOST(hdr->kernel_ofs),
- BE32_TO_HOST(hdr->kernel_len), 1, fp)) {
+ if (!fwrite(buf + ntohl(hdr->kernel_ofs),
+ ntohl(hdr->kernel_len), 1, fp)) {
ERR("error in fwrite(): %s", strerror(errno));
}
fclose(fp);
printf("Extracting rootfs to \"%s\"...\n", filename);
fp = fopen(filename, "w");
if (fp) {
- if (!fwrite(buf + BE32_TO_HOST(hdr->rootfs_ofs),
- BE32_TO_HOST(hdr->rootfs_len), 1, fp)) {
+ if (!fwrite(buf + ntohl(hdr->rootfs_ofs),
+ ntohl(hdr->rootfs_len), 1, fp)) {
ERR("error in fwrite(): %s", strerror(errno));
}
fclose(fp);
while ( 1 ) {
int c;
- c = getopt(argc, argv, "B:E:L:V:N:ci:k:r:R:o:xhs");
+ c = getopt(argc, argv, "a:B:E:L:V:N:ci:k:r:R:o:xhs");
if (c == -1)
break;
switch (c) {
+ case 'a':
+ sscanf(optarg, "0x%x", &rootfs_align);
+ break;
case 'B':
board_id = optarg;
break;
projects / openwrt.git / blobdiff