From: John Crispin Date: Tue, 6 Aug 2013 16:25:35 +0000 (+0000) Subject: firmware-utils: add a tool TP-Link v2 image generation X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=15721d535b4e8543d0d81b7ec1d7bfef55a94e3a;p=openwrt%2Fstaging%2Fmans0n.git firmware-utils: add a tool TP-Link v2 image generation Signed-off-by: Gabor Juhos SVN-Revision: 37726 --- diff --git a/tools/firmware-utils/Makefile b/tools/firmware-utils/Makefile index c0d577e6b2..45690f5949 100644 --- a/tools/firmware-utils/Makefile +++ b/tools/firmware-utils/Makefile @@ -40,6 +40,7 @@ define Host/Compile $(call cc,nand_ecc) $(call cc,mkplanexfw sha1) $(call cc,mktplinkfw md5) + $(call cc,mktplinkfw2 md5) $(call cc,pc1crypt) $(call cc,osbridge-crc) $(call cc,wrt400n cyg_crc32) diff --git a/tools/firmware-utils/src/mktplinkfw2.c b/tools/firmware-utils/src/mktplinkfw2.c new file mode 100644 index 0000000000..df64ac3a86 --- /dev/null +++ b/tools/firmware-utils/src/mktplinkfw2.c @@ -0,0 +1,944 @@ +/* + * Copyright (C) 2009 Gabor Juhos + * + * This tool was based on: + * TP-Link WR941 V2 firmware checksum fixing tool. + * Copyright (C) 2008,2009 Wang Jian + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include /* for unlink() */ +#include +#include /* for getopt() */ +#include +#include +#include + +#include +#include + +#include "md5.h" + +#define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); }) + +#define HEADER_VERSION_V2 0x02000000 + +#define HWID_TD_W8970_V1 0x89700001 + +#define MD5SUM_LEN 16 + +struct file_info { + char *file_name; /* name of the file */ + uint32_t file_size; /* length of the file */ +}; + +struct fw_header { + uint32_t version; /* 0x00: header version */ + char fw_version[48]; /* 0x04: fw version string */ + uint32_t hw_id; /* 0x34: hardware id */ + uint32_t hw_rev; /* 0x38: FIXME: hardware revision? */ + uint32_t unk1; /* 0x3c: 0x00000000 */ + uint8_t md5sum1[MD5SUM_LEN]; /* 0x40 */ + uint32_t unk2; /* 0x50: 0x00000000 */ + uint8_t md5sum2[MD5SUM_LEN]; /* 0x54 */ + uint32_t unk3; /* 0x64: 0xffffffff */ + + uint32_t kernel_la; /* 0x68: kernel load address */ + uint32_t kernel_ep; /* 0x6c: kernel entry point */ + uint32_t fw_length; /* 0x70: total length of the image */ + uint32_t kernel_ofs; /* 0x74: kernel data offset */ + uint32_t kernel_len; /* 0x78: kernel data length */ + uint32_t rootfs_ofs; /* 0x7c: rootfs data offset */ + uint32_t rootfs_len; /* 0x80: rootfs data length */ + uint32_t boot_ofs; /* 0x84: FIXME: seems to be unused */ + uint32_t boot_len; /* 0x88: FIXME: seems to be unused */ + uint16_t unk4; /* 0x8c: 0x55aa */ + uint8_t sver_hi; /* 0x8e */ + uint8_t sver_lo; /* 0x8f */ + uint8_t unk5; /* 0x90: magic: 0xa5 */ + uint8_t ver_hi; /* 0x91 */ + uint8_t ver_mid; /* 0x92 */ + uint8_t ver_lo; /* 0x93 */ + uint8_t pad[364]; +} __attribute__ ((packed)); + +struct flash_layout { + char *id; + 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 *ofname; +static char *progname; +static char *vendor = "TP-LINK Technologies"; +static char *version = "ver. 1.0"; +static char *fw_ver = "0.0.0"; +static char *sver = "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 int fw_ver_lo; +static int fw_ver_mid; +static int fw_ver_hi; +static int sver_lo; +static int sver_hi; +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, + 0xdc, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x37, +}; + +char md5salt_boot[MD5SUM_LEN] = { + 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa, + 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42, +}; + +static struct flash_layout layouts[] = { + { + .id = "8Mltq", + .fw_max_len = 0x7a0000, + .kernel_la = 0x80002000, + .kernel_ep = 0x80002000, + .rootfs_ofs = 0x140000, + }, { + /* terminating entry */ + } +}; + +static struct board_info boards[] = { + { + .id = "TD-W8970v1", + .hw_id = HWID_TD_W8970_V1, + .hw_rev = 1, + .layout_id = "8Mltq", + }, { + /* terminating entry */ + } +}; + +/* + * Message macros + */ +#define ERR(fmt, ...) do { \ + fflush(0); \ + fprintf(stderr, "[%s] *** error: " fmt "\n", \ + progname, ## __VA_ARGS__ ); \ +} while (0) + +#define ERRS(fmt, ...) do { \ + int save = errno; \ + fflush(0); \ + fprintf(stderr, "[%s] *** error: " fmt "\n", \ + progname, ## __VA_ARGS__, strerror(save)); \ +} while (0) + +#define DBG(fmt, ...) do { \ + fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \ +} while (0) + +static struct board_info *find_board(char *id) +{ + struct board_info *ret; + struct board_info *board; + + ret = NULL; + for (board = boards; board->id != NULL; board++){ + if (strcasecmp(id, board->id) == 0) { + ret = board; + break; + } + }; + + 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; + struct board_info *board; + + fprintf(stream, "Usage: %s [OPTIONS...]\n", progname); + fprintf(stream, +"\n" +"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" +" -W use hardware revision 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" +" -s strip padding from the end of the image\n" +" -j add jffs2 end-of-filesystem markers\n" +" -V set image version to \n" +" -v set firmware version to \n" +" -y set secondary version to \n" +" -i inspect given firmware file \n" +" -x extract kernel and rootfs while inspecting (requires -i)\n" +" -h show this screen\n" + ); + + exit(status); +} + +static int get_md5(char *data, int size, char *md5) +{ + MD5_CTX ctx; + + MD5_Init(&ctx); + MD5_Update(&ctx, data, size); + MD5_Final(md5, &ctx); +} + +static int get_file_stat(struct file_info *fdata) +{ + struct stat st; + int res; + + if (fdata->file_name == NULL) + return 0; + + res = stat(fdata->file_name, &st); + if (res){ + ERRS("stat failed on %s", fdata->file_name); + return res; + } + + fdata->file_size = st.st_size; + return 0; +} + +static int read_to_buf(struct file_info *fdata, char *buf) +{ + FILE *f; + int ret = EXIT_FAILURE; + + f = fopen(fdata->file_name, "r"); + if (f == NULL) { + ERRS("could not open \"%s\" for reading", fdata->file_name); + goto out; + } + + errno = 0; + fread(buf, fdata->file_size, 1, f); + if (errno != 0) { + ERRS("unable to read from file \"%s\"", fdata->file_name); + goto out_close; + } + + ret = EXIT_SUCCESS; + + out_close: + fclose(f); + out: + return ret; +} + +static int check_options(void) +{ + int ret; + + 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; + } + + 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; + } + + ret = get_file_stat(&kernel_info); + if (ret) + return ret; + + kernel_len = kernel_info.file_size; + + if (combined) { + if (kernel_info.file_size > + layout->fw_max_len - sizeof(struct fw_header)) { + ERR("kernel image is too big"); + return -1; + } + } else { + if (rootfs_info.file_name == NULL) { + ERR("no rootfs image specified"); + return -1; + } + + ret = get_file_stat(&rootfs_info); + if (ret) + return ret; + + 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; + } + } + } + + if (ofname == NULL) { + ERR("no output file specified"); + return -1; + } + + ret = sscanf(fw_ver, "%d.%d.%d", &fw_ver_hi, &fw_ver_mid, &fw_ver_lo); + if (ret != 3) { + ERR("invalid firmware version '%s'", fw_ver); + return -1; + } + + ret = sscanf(sver, "%d.%d", &sver_hi, &sver_lo); + if (ret != 2) { + ERR("invalid secondary version '%s'", sver); + return -1; + } + + return 0; +} + +static void fill_header(char *buf, int len) +{ + struct fw_header *hdr = (struct fw_header *)buf; + unsigned ver_len; + + memset(hdr, '\xff', sizeof(struct fw_header)); + + hdr->version = htonl(HEADER_VERSION_V2); + ver_len = strlen(version); + if (ver_len > (sizeof(hdr->fw_version) - 1)) + ver_len = sizeof(hdr->fw_version) - 1; + + memcpy(hdr->fw_version, version, ver_len); + hdr->fw_version[ver_len] = 0; + + 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)); + hdr->boot_ofs = htonl(0); + hdr->boot_len = htonl(0); + } else { + memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1)); + hdr->boot_ofs = htonl(rootfs_ofs + rootfs_info.file_size); + hdr->boot_len = htonl(rootfs_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 = htonl(rootfs_ofs); + hdr->rootfs_len = htonl(rootfs_info.file_size); + } + + hdr->boot_ofs = htonl(0); + hdr->boot_len = htonl(boot_info.file_size); + + hdr->unk1 = htonl(0); + hdr->unk2 = htonl(0); + hdr->unk3 = htonl(0xffffffff); + hdr->unk4 = htons(0x55aa); + hdr->unk5 = 0xa5; + + hdr->sver_hi = sver_hi; + hdr->sver_lo = sver_lo; + + hdr->ver_hi = fw_ver_hi; + hdr->ver_mid = fw_ver_mid; + hdr->ver_lo = fw_ver_lo; + + 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; + + f = fopen(ofname, "w"); + if (f == NULL) { + ERRS("could not open \"%s\" for writing", ofname); + goto out; + } + + errno = 0; + fwrite(data, len, 1, f); + if (errno) { + ERRS("unable to write output file"); + goto out_flush; + } + + DBG("firmware file \"%s\" completed", ofname); + + ret = EXIT_SUCCESS; + + out_flush: + fflush(f); + fclose(f); + if (ret != EXIT_SUCCESS) { + unlink(ofname); + } + out: + return ret; +} + +static int build_fw(void) +{ + int buflen; + char *buf; + char *p; + int ret = EXIT_FAILURE; + int writelen = 0; + + buflen = layout->fw_max_len; + + buf = malloc(buflen); + if (!buf) { + ERR("no memory for buffer\n"); + goto out; + } + + memset(buf, 0xff, buflen); + p = buf + sizeof(struct fw_header); + ret = read_to_buf(&kernel_info, p); + if (ret) + goto out_free_buf; + + writelen = sizeof(struct fw_header) + kernel_len; + + if (!combined) { + 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); + } + + if (!strip_padding) + writelen = buflen; + + fill_header(buf, writelen); + ret = write_fw(buf, writelen); + if (ret) + goto out_free_buf; + + ret = EXIT_SUCCESS; + + out_free_buf: + free(buf); + out: + 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_V2) { + ERR("file does not seem to have V2 header!\n"); + goto out_free_buf; + } + + inspect_fw_phexdec("Version 2 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) != 0xffffffff) + inspect_fw_phexdec("Unknown value 3", hdr->unk3); + + if (ntohs(hdr->unk4) != 0x55aa) + inspect_fw_phexdec("Unknown value 4", hdr->unk4); + + if (hdr->unk5 != 0xa5) + inspect_fw_phexdec("Unknown value 5", hdr->unk5); + + printf("\n"); + + 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("%-23s: %d.%d.%d-%d.%d\n", "Software version", + hdr->ver_hi, hdr->ver_mid, hdr->ver_lo, + hdr->sver_hi, hdr->sver_lo); + + 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; + int err; + + FILE *outfile; + + progname = basename(argv[0]); + + while ( 1 ) { + int c; + + c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsjv:y:"); + 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; + case 'v': + fw_ver = optarg; + break; + case 'y': + sver = optarg; + break; + case 'N': + vendor = optarg; + break; + case 'c': + combined++; + break; + case 'k': + kernel_info.file_name = optarg; + break; + case 'r': + rootfs_info.file_name = optarg; + break; + case 'R': + sscanf(optarg, "0x%x", &rootfs_ofs); + break; + case 'o': + ofname = optarg; + break; + 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); + break; + default: + usage(EXIT_FAILURE); + break; + } + } + + ret = check_options(); + if (ret) + goto out; + + if (!inspect_info.file_name) + ret = build_fw(); + else + ret = inspect_fw(); + + out: + return ret; +} +