X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/bfbc6bd89d38caa27008f9e93b41d279d244ed20..7e491e9a720265b21021407cc20bff038aa6b00e:/tools/firmware-utils/src/mktplinkfw.c diff --git a/tools/firmware-utils/src/mktplinkfw.c b/tools/firmware-utils/src/mktplinkfw.c index 08f345e7f..bc3a2f377 100644 --- a/tools/firmware-utils/src/mktplinkfw.c +++ b/tools/firmware-utils/src/mktplinkfw.c @@ -22,22 +22,31 @@ #include #include +#include +#include + #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_MR3420_V1 0x34200001 +#define HWID_TL_WA901ND_V1 0x09010001 +#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 0x07400003 +#define HWID_TL_WR743ND_V1 0x07430001 +#define HWID_TL_WR841N_V1_5 0x08410002 #define HWID_TL_WR841ND_V3 0x08410003 #define HWID_TL_WR841ND_V5 0x08410005 +#define HWID_TL_WR841ND_V7 0x08410007 #define HWID_TL_WR941ND_V2 0x09410002 -#define HWID_TL_WR1043ND_V1 0x10430001 +#define HWID_TL_WR941ND_V4 0x09410004 +#define HWID_TL_WR1043ND_V1 0x10430001 #define MD5SUM_LEN 16 @@ -69,16 +78,21 @@ struct fw_header { 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 */ @@ -89,10 +103,27 @@ static char *version = "ver. 1.0"; 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; char md5salt_normal[MD5SUM_LEN] = { 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb, @@ -104,47 +135,116 @@ char md5salt_boot[MD5SUM_LEN] = { 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42, }; -static struct board_info boards[] = { +static struct flash_layout layouts[] = { { - .id = "TL-WR741NDv1", - .hw_id = HWID_TL_WR741ND_V1, - .hw_rev = 1, + .id = "4M", .fw_max_len = 0x3c0000, .kernel_la = 0x80060000, .kernel_ep = 0x80060000, .rootfs_ofs = 0x140000, }, { - .id = "TL-WR841NDv3", - .hw_id = HWID_TL_WR841ND_V3, - .hw_rev = 3, + .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, + .layout_id = "4M", + }, { + .id = "TL-WA901NDv2", + .hw_id = HWID_TL_WA901ND_V2, + .hw_rev = 1, + .layout_id = "4M", + }, { + .id = "TL-WR741NDv1", + .hw_id = HWID_TL_WR741ND_V1, + .hw_rev = 1, + .layout_id = "4M", + }, { + .id = "TL-WR741NDv4", + .hw_id = HWID_TL_WR741ND_V4, + .hw_rev = 1, + .layout_id = "4Mlzma", + }, { + .id = "TL-WR740Nv1", + .hw_id = HWID_TL_WR740N_V1, + .hw_rev = 1, + .layout_id = "4M", + }, { + .id = "TL-WR740Nv3", + .hw_id = HWID_TL_WR740N_V3, + .hw_rev = 1, + .layout_id = "4M", + }, { + .id = "TL-WR743NDv1", + .hw_id = HWID_TL_WR743ND_V1, + .hw_rev = 1, + .layout_id = "4M", + }, { + .id = "TL-WR841Nv1.5", + .hw_id = HWID_TL_WR841N_V1_5, + .hw_rev = 2, + .layout_id = "4M", + }, { + .id = "TL-WR841NDv3", + .hw_id = HWID_TL_WR841ND_V3, + .hw_rev = 3, + .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, + .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, + .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, + .layout_id = "4Mlzma", }, { /* terminating entry */ } @@ -186,6 +286,34 @@ static struct board_info *find_board(char *id) return ret; } +static struct board_info *find_board_by_hwid(uint32_t hw_id) +{ + struct board_info *board; + + for (board = boards; board->id != NULL; board++) { + if (hw_id == board->hw_id) + return board; + }; + + 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) { FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout; @@ -197,10 +325,21 @@ static void usage(int status) "Options:\n" " -B create image for the board specified with \n" " -c use combined kernel image\n" +" -E overwrite kernel entry point with (hexval prefixed with 0x)\n" +" -L overwrite kernel load address with (hexval prefixed with 0x)\n" +" -H use hardware id specified with \n" +" -F use flash layout specified with \n" " -k read kernel image from the file \n" " -r read rootfs image from the file \n" +" -a align the rootfs start on an bytes boundary\n" +" -R overwrite rootfs offset with (hexval prefixed with 0x)\n" " -o write output to the file \n" -" -v set image version to \n" +" -s strip padding from the end of the image\n" +" -j add jffs2 end-of-filesystem markers\n" +" -N set image vendor to \n" +" -V set image version to \n" +" -i inspect given firmware file \n" +" -x extract kernel and rootfs while inspecting (requires -i)\n" " -h show this screen\n" ); @@ -264,17 +403,59 @@ static int check_options(void) { int ret; - if (board_id == NULL) { - ERR("no board specified"); + if (inspect_info.file_name) { + ret = get_file_stat(&inspect_info); + if (ret) + return ret; + + return 0; + } else if (extract) { + ERR("no firmware for inspection specified"); + return -1; + } + + 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 = layout->kernel_la; + if (!kernel_ep) + kernel_ep = layout->kernel_ep; + if (!rootfs_ofs) + rootfs_ofs = layout->rootfs_ofs; + if (kernel_info.file_name == NULL) { ERR("no kernel image specified"); return -1; @@ -284,18 +465,15 @@ static int check_options(void) 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 > - board->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; @@ -305,10 +483,30 @@ static int check_options(void) if (ret) return ret; - if (rootfs_info.file_size > - (board->fw_max_len - board->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; + } } } @@ -326,30 +524,64 @@ static void fill_header(char *buf, int len) 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(board->kernel_la); - hdr->kernel_ep = HOST_TO_BE32(board->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(board->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; @@ -388,8 +620,9 @@ static int build_fw(void) char *buf; char *p; int ret = EXIT_FAILURE; + int writelen = 0; - buflen = board->fw_max_len; + buflen = layout->fw_max_len; buf = malloc(buflen); if (!buf) { @@ -403,16 +636,32 @@ static int build_fw(void) if (ret) goto out_free_buf; + writelen = sizeof(struct fw_header) + kernel_len; + if (!combined) { - p = buf + board->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; + + 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); } - fill_header(buf, buflen); + if (!strip_padding) + writelen = buflen; - ret = write_fw(buf, buflen); + fill_header(buf, writelen); + ret = write_fw(buf, writelen); if (ret) goto out_free_buf; @@ -424,6 +673,217 @@ static int build_fw(void) return ret; } +/* Helper functions to inspect_fw() representing different output formats */ +static inline void inspect_fw_pstr(char *label, char *str) +{ + printf("%-23s: %s\n", label, str); +} + +static inline void inspect_fw_phex(char *label, uint32_t val) +{ + printf("%-23s: 0x%08x\n", label, val); +} + +static inline void inspect_fw_phexpost(char *label, + uint32_t val, char *post) +{ + printf("%-23s: 0x%08x (%s)\n", label, val, post); +} + +static inline void inspect_fw_phexdef(char *label, + uint32_t val, uint32_t defval) +{ + printf("%-23s: 0x%08x ", label, val); + + if (val == defval) + printf("(== OpenWrt default)\n"); + else + printf("(OpenWrt default: 0x%08x)\n", defval); +} + +static inline void inspect_fw_phexexp(char *label, + uint32_t val, uint32_t expval) +{ + printf("%-23s: 0x%08x ", label, val); + + if (val == expval) + printf("(ok)\n"); + else + printf("(expected: 0x%08x)\n", expval); +} + +static inline void inspect_fw_phexdec(char *label, uint32_t val) +{ + printf("%-23s: 0x%08x / %8u bytes\n", label, val, val); +} + +static inline void inspect_fw_phexdecdef(char *label, + uint32_t val, uint32_t defval) +{ + printf("%-23s: 0x%08x / %8u bytes ", label, val, val); + + if (val == defval) + printf("(== OpenWrt default)\n"); + else + printf("(OpenWrt default: 0x%08x)\n", defval); +} + +static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text) +{ + int i; + + printf("%-23s:", label); + for (i=0; iversion) != 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 (ntohl(hdr->unk1) != 0) + inspect_fw_phexdec("Unknown value 1", hdr->unk1); + + memcpy(md5sum, hdr->md5sum1, sizeof(md5sum)); + if (ntohl(hdr->boot_len) == 0) + memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum)); + else + memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum)); + get_md5(buf, inspect_info.file_size, hdr->md5sum1); + + if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) { + inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)"); + inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, ""); + } else { + inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)"); + } + 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 (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(ntohl(hdr->hw_id)); + if (board) { + layout = find_layout(board->layout_id); + inspect_fw_phexpost("Hardware ID", + ntohl(hdr->hw_id), board->id); + inspect_fw_phexexp("Hardware Revision", + ntohl(hdr->hw_rev), board->hw_rev); + } else { + inspect_fw_phexpost("Hardware ID", + ntohl(hdr->hw_id), "unknown"); + inspect_fw_phex("Hardware Revision", + ntohl(hdr->hw_rev)); + } + + printf("\n"); + + inspect_fw_phexdec("Kernel data offset", + ntohl(hdr->kernel_ofs)); + inspect_fw_phexdec("Kernel data length", + ntohl(hdr->kernel_len)); + if (board) { + inspect_fw_phexdef("Kernel load address", + ntohl(hdr->kernel_la), + layout ? layout->kernel_la : 0xffffffff); + inspect_fw_phexdef("Kernel entry point", + ntohl(hdr->kernel_ep), + layout ? layout->kernel_ep : 0xffffffff); + inspect_fw_phexdecdef("Rootfs data offset", + ntohl(hdr->rootfs_ofs), + layout ? layout->rootfs_ofs : 0xffffffff); + } else { + inspect_fw_phex("Kernel load address", + ntohl(hdr->kernel_la)); + inspect_fw_phex("Kernel entry point", + ntohl(hdr->kernel_ep)); + inspect_fw_phexdec("Rootfs data offset", + ntohl(hdr->rootfs_ofs)); + } + inspect_fw_phexdec("Rootfs data length", + ntohl(hdr->rootfs_len)); + inspect_fw_phexdec("Boot loader data offset", + ntohl(hdr->boot_ofs)); + inspect_fw_phexdec("Boot loader data length", + ntohl(hdr->boot_len)); + inspect_fw_phexdec("Total firmware length", + ntohl(hdr->fw_length)); + + if (extract) { + FILE *fp; + char *filename; + + printf("\n"); + + filename = malloc(strlen(inspect_info.file_name) + 8); + sprintf(filename, "%s-kernel", inspect_info.file_name); + printf("Extracting kernel to \"%s\"...\n", filename); + fp = fopen(filename, "w"); + if (fp) { + if (!fwrite(buf + ntohl(hdr->kernel_ofs), + ntohl(hdr->kernel_len), 1, fp)) { + ERR("error in fwrite(): %s", strerror(errno)); + } + fclose(fp); + } else { + ERR("error in fopen(): %s", strerror(errno)); + } + free(filename); + + filename = malloc(strlen(inspect_info.file_name) + 8); + sprintf(filename, "%s-rootfs", inspect_info.file_name); + printf("Extracting rootfs to \"%s\"...\n", filename); + fp = fopen(filename, "w"); + if (fp) { + if (!fwrite(buf + ntohl(hdr->rootfs_ofs), + ntohl(hdr->rootfs_len), 1, fp)) { + ERR("error in fwrite(): %s", strerror(errno)); + } + fclose(fp); + } else { + ERR("error in fopen(): %s", strerror(errno)); + } + free(filename); + } + + out_free_buf: + free(buf); + out: + return ret; +} + int main(int argc, char *argv[]) { int ret = EXIT_FAILURE; @@ -436,14 +896,32 @@ int main(int argc, char *argv[]) while ( 1 ) { int c; - c = getopt(argc, argv, "B:V:N:ck:r:o:v:h:"); + 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 'V': version = optarg; break; @@ -459,11 +937,23 @@ int main(int argc, char *argv[]) case 'r': rootfs_info.file_name = optarg; break; + case 'R': + sscanf(optarg, "0x%x", &rootfs_ofs); + break; case 'o': ofname = optarg; break; - case 'v': - version = optarg; + case 's': + strip_padding = 1; + break; + case 'i': + inspect_info.file_name = optarg; + break; + case 'j': + add_jffs2_eof = 1; + break; + case 'x': + extract = 1; break; case 'h': usage(EXIT_SUCCESS); @@ -478,7 +968,10 @@ int main(int argc, char *argv[]) if (ret) goto out; - ret = build_fw(); + if (!inspect_info.file_name) + ret = build_fw(); + else + ret = inspect_fw(); out: return ret;