#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
uint8_t pad[360];
} __attribute__ ((packed));
-struct board_info {
+struct flash_layout {
char *id;
- uint32_t hw_id;
- uint32_t hw_rev;
uint32_t fw_max_len;
uint32_t kernel_la;
uint32_t kernel_ep;
uint32_t rootfs_ofs;
};
+struct board_info {
+ char *id;
+ uint32_t hw_id;
+ uint32_t hw_rev;
+ char *layout_id;
+};
+
/*
* Globals
*/
static char *board_id;
static struct board_info *board;
+static char *layout_id;
+static struct flash_layout *layout;
+static char *opt_hw_id;
+static uint32_t hw_id;
+static char *opt_hw_rev;
+static uint32_t hw_rev;
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;
+static int add_jffs2_eof;
+static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
static struct file_info inspect_info;
static int extract = 0;
0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
};
-static struct board_info boards[] = {
+static struct flash_layout layouts[] = {
{
- .id = "TL-MR3220v1",
- .hw_id = HWID_TL_MR3220_V1,
- .hw_rev = 1,
+ .id = "4M",
.fw_max_len = 0x3c0000,
.kernel_la = 0x80060000,
.kernel_ep = 0x80060000,
.rootfs_ofs = 0x140000,
}, {
- .id = "TL-MR3420v1",
- .hw_id = HWID_TL_MR3420_V1,
- .hw_rev = 1,
+ .id = "4Mlzma",
.fw_max_len = 0x3c0000,
.kernel_la = 0x80060000,
.kernel_ep = 0x80060000,
+ .rootfs_ofs = 0x100000,
+ }, {
+ .id = "8M",
+ .fw_max_len = 0x7c0000,
+ .kernel_la = 0x80060000,
+ .kernel_ep = 0x80060000,
.rootfs_ofs = 0x140000,
+ }, {
+ /* terminating entry */
+ }
+};
+
+static struct board_info boards[] = {
+ {
+ .id = "TL-MR3220v1",
+ .hw_id = HWID_TL_MR3220_V1,
+ .hw_rev = 1,
+ .layout_id = "4M",
+ }, {
+ .id = "TL-MR3420v1",
+ .hw_id = HWID_TL_MR3420_V1,
+ .hw_rev = 1,
+ .layout_id = "4M",
}, {
.id = "TL-WA901NDv1",
.hw_id = HWID_TL_WA901ND_V1,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WA901NDv2",
.hw_id = HWID_TL_WA901ND_V2,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR741NDv1",
.hw_id = HWID_TL_WR741ND_V1,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.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,
+ .layout_id = "4Mlzma",
}, {
.id = "TL-WR740Nv1",
.hw_id = HWID_TL_WR740N_V1,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR740Nv3",
.hw_id = HWID_TL_WR740N_V3,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR743NDv1",
.hw_id = HWID_TL_WR743ND_V1,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR841Nv1.5",
.hw_id = HWID_TL_WR841N_V1_5,
.hw_rev = 2,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR841NDv3",
.hw_id = HWID_TL_WR841ND_V3,
.hw_rev = 3,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR841NDv5",
.hw_id = HWID_TL_WR841ND_V5,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR841NDv7",
.hw_id = HWID_TL_WR841ND_V7,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR941NDv2",
.hw_id = HWID_TL_WR941ND_V2,
.hw_rev = 2,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR941NDv4",
.hw_id = HWID_TL_WR941ND_V4,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "4M",
}, {
.id = "TL-WR1043NDv1",
.hw_id = HWID_TL_WR1043ND_V1,
.hw_rev = 1,
- .fw_max_len = 0x7c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
+ .layout_id = "8M",
}, {
.id = "TL-WR703Nv1",
.hw_id = HWID_TL_WR703N_V1,
.hw_rev = 1,
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x100000,
+ .layout_id = "4Mlzma",
}, {
/* terminating entry */
}
return NULL;
}
+static struct flash_layout *find_layout(char *id)
+{
+ struct flash_layout *ret;
+ struct flash_layout *l;
+
+ ret = NULL;
+ for (l = layouts; l->id != NULL; l++){
+ if (strcasecmp(id, l->id) == 0) {
+ ret = l;
+ break;
+ }
+ };
+
+ return ret;
+}
static void usage(int status)
{
" -c use combined kernel image\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"
+" -F <id> use flash layout specified with <id>\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"
+" -j add jffs2 end-of-filesystem markers\n"
" -N <vendor> set image vendor to <vendor>\n"
" -V <version> set image version to <version>\n"
" -i <file> inspect given firmware file <file>\n"
return -1;
}
- if (board_id == NULL) {
- ERR("no board specified");
+ if (board_id == NULL && opt_hw_id == NULL) {
+ ERR("either board or hardware id must be specified");
return -1;
}
- board = find_board(board_id);
- if (board == NULL) {
- ERR("unknown/unsupported board id \"%s\"", board_id);
+ if (board_id) {
+ board = find_board(board_id);
+ if (board == NULL) {
+ ERR("unknown/unsupported board id \"%s\"", board_id);
+ return -1;
+ }
+ if (layout_id == NULL)
+ layout_id = board->layout_id;
+
+ hw_id = board->hw_id;
+ hw_rev = board->hw_rev;
+ } else {
+ if (layout_id == NULL) {
+ ERR("flash layout is not specified");
+ return -1;
+ }
+ hw_id = strtoul(opt_hw_id, NULL, 0);
+
+ if (opt_hw_rev)
+ hw_rev = strtoul(opt_hw_rev, NULL, 0);
+ else
+ hw_rev = 1;
+ }
+
+ layout = find_layout(layout_id);
+ if (layout == NULL) {
+ ERR("unknown flash layout \"%s\"", layout_id);
return -1;
}
+
if (!kernel_la)
- kernel_la = board->kernel_la;
+ kernel_la = layout->kernel_la;
if (!kernel_ep)
- kernel_ep = board->kernel_ep;
+ kernel_ep = layout->kernel_ep;
if (!rootfs_ofs)
- rootfs_ofs = board->rootfs_ofs;
+ rootfs_ofs = layout->rootfs_ofs;
if (kernel_info.file_name == NULL) {
ERR("no kernel image specified");
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)) {
+ layout->fw_max_len - sizeof(struct fw_header)) {
ERR("kernel image is 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_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 >
+ layout->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 >
+ (layout->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(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 = 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(layout->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);
}
+static int pad_jffs2(char *buf, int currlen)
+{
+ int len;
+ uint32_t pad_mask;
+
+ len = currlen;
+ pad_mask = (64 * 1024);
+ while ((len < layout->fw_max_len) && (pad_mask != 0)) {
+ uint32_t mask;
+ int i;
+
+ for (i = 10; i < 32; i++) {
+ mask = 1 << i;
+ if (pad_mask & mask)
+ break;
+ }
+
+ len = ALIGN(len, mask);
+
+ for (i = 10; i < 32; i++) {
+ mask = 1 << i;
+ if ((len & (mask - 1)) == 0)
+ pad_mask &= ~mask;
+ }
+
+ for (i = 0; i < sizeof(jffs2_eof_mark); i++)
+ buf[len + i] = jffs2_eof_mark[i];
+
+ len += sizeof(jffs2_eof_mark);
+ }
+
+ return len;
+}
+
static int write_fw(char *data, int len)
{
FILE *f;
int ret = EXIT_FAILURE;
int writelen = 0;
- buflen = board->fw_max_len;
+ buflen = layout->fw_max_len;
buf = malloc(buflen);
if (!buf) {
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 (add_jffs2_eof)
+ writelen = pad_jffs2(buf, writelen);
}
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) {
+ layout = find_layout(board->layout_id);
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),
- board->kernel_la);
+ ntohl(hdr->kernel_la),
+ layout ? layout->kernel_la : 0xffffffff);
inspect_fw_phexdef("Kernel entry point",
- BE32_TO_HOST(hdr->kernel_ep),
- board->kernel_ep);
+ ntohl(hdr->kernel_ep),
+ layout ? layout->kernel_ep : 0xffffffff);
inspect_fw_phexdecdef("Rootfs data offset",
- BE32_TO_HOST(hdr->rootfs_ofs),
- board->rootfs_ofs);
+ ntohl(hdr->rootfs_ofs),
+ layout ? layout->rootfs_ofs : 0xffffffff);
} 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:H:E:F:L:V:N:W:ci:k:r:R:o:xhsj");
if (c == -1)
break;
switch (c) {
+ case 'a':
+ sscanf(optarg, "0x%x", &rootfs_align);
+ break;
case 'B':
board_id = optarg;
break;
+ case 'H':
+ opt_hw_id = optarg;
+ break;
case 'E':
sscanf(optarg, "0x%x", &kernel_ep);
break;
+ case 'F':
+ layout_id = optarg;
+ break;
+ case 'W':
+ opt_hw_rev = optarg;
+ break;
case 'L':
sscanf(optarg, "0x%x", &kernel_la);
break;
case 'i':
inspect_info.file_name = optarg;
break;
+ case 'j':
+ add_jffs2_eof = 1;
+ break;
case 'x':
extract = 1;
break;
projects / openwrt.git / blobdiff