#include <libgen.h>
#include <getopt.h> /* for getopt() */
#include <stdarg.h>
+#include <stdbool.h>
+#include <endian.h>
#include <errno.h>
#include <sys/stat.h>
static struct file_info boot_info;
static int combined;
static int strip_padding;
-static int ignore_size;
static int add_jffs2_eof;
static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
static uint32_t fw_max_len;
static struct file_info inspect_info;
static int extract = 0;
+static bool endian_swap = false;
static const char md5salt_normal[MD5SUM_LEN] = {
0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
.kernel_la = 0x00000000 ,
.kernel_ep = 0xc0000000,
.rootfs_ofs = 0x2a0000,
- }, {
- /*
- Some devices (e.g. TL-WR1043 v4) use a mktplinkfw kernel image
- embedded in a tplink-safeloader image as os-image partition.
-
- We use a 1.5MB partition for the compressed kernel, which should
- be sufficient, but not too wasteful (the flash of the TL-WR1043 v4
- has 16MB in total).
- */
- .id = "16Msafeloader",
- .fw_max_len = 0x180000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0,
}, {
/* terminating entry */
}
"\n"
"Options:\n"
" -c use combined kernel image\n"
+" -e swap endianness in kernel load address and entry point\n"
" -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
" -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
" -H <hwid> use hardware id specified with <hwid>\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"
-" -S ignore firmware size limit (only for combined images)\n"
" -j add jffs2 end-of-filesystem markers\n"
" -N <vendor> set image vendor to <vendor>\n"
" -V <version> set image version to <version>\n"
}
hw_id = strtoul(opt_hw_id, NULL, 0);
- if (layout_id == NULL) {
+ if (!combined && layout_id == NULL) {
ERR("flash layout is not specified");
return -1;
}
}
}
- layout = find_layout(layout_id);
- if (layout == NULL) {
- ERR("unknown flash layout \"%s\"", layout_id);
- return -1;
- }
+ if (combined) {
+ if (!kernel_la || !kernel_ep) {
+ ERR("kernel loading address and entry point must be specified for combined image");
+ return -1;
+ }
+ } else {
+ layout = find_layout(layout_id);
+ if (layout == NULL) {
+ ERR("unknown flash layout \"%s\"", layout_id);
+ return -1;
+ }
- if (!kernel_la)
- kernel_la = layout->kernel_la;
- if (!kernel_ep)
- kernel_ep = layout->kernel_ep;
- if (!rootfs_ofs)
- rootfs_ofs = layout->rootfs_ofs;
+ if (!kernel_la)
+ kernel_la = layout->kernel_la;
+ if (!kernel_ep)
+ kernel_ep = layout->kernel_ep;
+ if (!rootfs_ofs)
+ rootfs_ofs = layout->rootfs_ofs;
- if (reserved_space > layout->fw_max_len) {
- ERR("reserved space is not valid");
- return -1;
+ if (reserved_space > layout->fw_max_len) {
+ ERR("reserved space is not valid");
+ return -1;
+ }
}
- fw_max_len = layout->fw_max_len - reserved_space;
-
if (kernel_info.file_name == NULL) {
ERR("no kernel image specified");
return -1;
kernel_len = kernel_info.file_size;
- if (combined) {
- exceed_bytes = kernel_info.file_size - (fw_max_len - sizeof(struct fw_header));
- if (exceed_bytes > 0) {
- if (!ignore_size) {
- ERR("kernel image is too big by %i bytes", exceed_bytes);
- return -1;
- }
- layout->fw_max_len = sizeof(struct fw_header) +
- kernel_info.file_size +
- reserved_space;
- }
- } else {
+ if (!combined) {
+ fw_max_len = layout->fw_max_len - reserved_space;
+
if (rootfs_info.file_name == NULL) {
ERR("no rootfs image specified");
return -1;
hdr->hw_id = htonl(hw_id);
hdr->hw_rev = htonl(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 = htonl(kernel_la);
hdr->kernel_ep = htonl(kernel_ep);
- hdr->fw_length = htonl(layout->fw_max_len);
hdr->kernel_ofs = htonl(sizeof(struct fw_header));
hdr->kernel_len = htonl(kernel_len);
+
if (!combined) {
+ if (boot_info.file_size == 0)
+ memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
+ else
+ memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
+
+ hdr->fw_length = htonl(layout->fw_max_len);
hdr->rootfs_ofs = htonl(rootfs_ofs);
hdr->rootfs_len = htonl(rootfs_info.file_size);
}
);
}
- get_md5(buf, len, hdr->md5sum1);
+ if (endian_swap) {
+ hdr->kernel_la = bswap_32(hdr->kernel_la);
+ hdr->kernel_ep = bswap_32(hdr->kernel_ep);
+ }
+
+ if (!combined)
+ get_md5(buf, len, hdr->md5sum1);
}
static int pad_jffs2(char *buf, int currlen)
int ret = EXIT_FAILURE;
int writelen = 0;
- buflen = layout->fw_max_len;
+ writelen = sizeof(struct fw_header) + kernel_len;
+
+ if (combined)
+ buflen = writelen;
+ else
+ buflen = layout->fw_max_len;
buf = malloc(buflen);
if (!buf) {
if (ret)
goto out_free_buf;
- writelen = sizeof(struct fw_header) + kernel_len;
if (!combined) {
if (rootfs_align)
while ( 1 ) {
int c;
- c = getopt(argc, argv, "a:H:E:F:L:m:V:N:W:C:ci:k:r:R:o:xX:hsSjv:");
+ c = getopt(argc, argv, "a:H:E:F:L:m:V:N:W:C:ci:k:r:R:o:xX:ehsjv:");
if (c == -1)
break;
case 's':
strip_padding = 1;
break;
- case 'S':
- ignore_size = 1;
- break;
case 'i':
inspect_info.file_name = optarg;
break;
case 'x':
extract = 1;
break;
+ case 'e':
+ endian_swap = true;
+ break;
case 'h':
usage(EXIT_SUCCESS);
break;
projects / openwrt / openwrt.git / blobdiff