diff options
Diffstat (limited to 'tools/firmware-utils/src/imagetag.c')
| -rw-r--r-- | tools/firmware-utils/src/imagetag.c | 486 |
1 files changed, 0 insertions, 486 deletions
diff --git a/tools/firmware-utils/src/imagetag.c b/tools/firmware-utils/src/imagetag.c deleted file mode 100644 index 6b06bd785a..0000000000 --- a/tools/firmware-utils/src/imagetag.c +++ /dev/null @@ -1,486 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2008 Axel Gembe <ago@bastart.eu.org> - * Copyright (C) 2009-2010 Daniel Dickinson <openwrt@cshore.neomailbox.net> - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <stdint.h> -#include <unistd.h> -#include <sys/stat.h> -#include <netinet/in.h> -#include <inttypes.h> - -#include "bcm_tag.h" -#include "imagetag_cmdline.h" -#include "cyg_crc.h" - -#define DEADCODE 0xDEADC0DE - -/* Kernel header */ -struct kernelhdr { - uint32_t loadaddr; /* Kernel load address */ - uint32_t entry; /* Kernel entry point address */ - uint32_t lzmalen; /* Compressed length of the LZMA data that follows */ -}; - -static char pirellitab[NUM_PIRELLI][BOARDID_LEN] = PIRELLI_BOARDS; - -void int2tag(char *tag, uint32_t value) { - uint32_t network = htonl(value); - memcpy(tag, (char *)(&network), 4); -} - -uint32_t compute_crc32(uint32_t crc, FILE *binfile, size_t compute_start, size_t compute_len) -{ - uint8_t readbuf[1024]; - size_t read; - - fseek(binfile, compute_start, SEEK_SET); - - /* read block of 1024 bytes */ - while (binfile && !feof(binfile) && !ferror(binfile) && (compute_len >= sizeof(readbuf))) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), binfile); - crc = cyg_crc32_accumulate(crc, readbuf, read); - compute_len = compute_len - read; - } - - /* Less than 1024 bytes remains, read compute_len bytes */ - if (binfile && !feof(binfile) && !ferror(binfile) && (compute_len > 0)) { - read = fread(readbuf, sizeof(uint8_t), compute_len, binfile); - crc = cyg_crc32_accumulate(crc, readbuf, read); - } - - return crc; -} - -size_t getlen(FILE *fp) -{ - size_t retval, curpos; - - if (!fp) - return 0; - - curpos = ftell(fp); - fseek(fp, 0, SEEK_END); - retval = ftell(fp); - fseek(fp, curpos, SEEK_SET); - - return retval; -} - -int tagfile(const char *kernel, const char *rootfs, const char *bin, \ - const struct gengetopt_args_info *args, \ - uint32_t flash_start, uint32_t image_offset, \ - uint32_t block_size, uint32_t load_address, uint32_t entry) -{ - struct bcm_tag tag; - struct kernelhdr khdr; - FILE *kernelfile = NULL, *rootfsfile = NULL, *binfile = NULL, *cfefile = NULL; - size_t cfelen, kerneloff, kernellen, rootfsoff, rootfslen, \ - read, imagelen, rootfsoffpadlen = 0, oldrootfslen, \ - rootfsend; - uint8_t readbuf[1024]; - uint32_t imagecrc = IMAGETAG_CRC_START; - uint32_t kernelcrc = IMAGETAG_CRC_START; - uint32_t rootfscrc = IMAGETAG_CRC_START; - uint32_t kernelfscrc = IMAGETAG_CRC_START; - uint32_t fwaddr = 0; - const uint32_t deadcode = htonl(DEADCODE); - int i; - int is_pirelli = 0; - - - memset(&tag, 0, sizeof(struct bcm_tag)); - - if (!kernel || !rootfs) { - fprintf(stderr, "imagetag can't create an image without both kernel and rootfs\n"); - } - - if (kernel && !(kernelfile = fopen(kernel, "rb"))) { - fprintf(stderr, "Unable to open kernel \"%s\"\n", kernel); - return 1; - } - - if (rootfs && !(rootfsfile = fopen(rootfs, "rb"))) { - fprintf(stderr, "Unable to open rootfs \"%s\"\n", rootfs); - return 1; - } - - if (!bin || !(binfile = fopen(bin, "wb+"))) { - fprintf(stderr, "Unable to open output file \"%s\"\n", bin); - return 1; - } - - if ((args->cfe_given) && (args->cfe_arg)) { - if (!(cfefile = fopen(args->cfe_arg, "rb"))) { - fprintf(stderr, "Unable to open CFE file \"%s\"\n", args->cfe_arg); - } - } - - fwaddr = flash_start + image_offset; - if (cfefile) { - cfelen = getlen(cfefile); - /* Seek to the start of the file after tag */ - fseek(binfile, sizeof(tag), SEEK_SET); - - /* Write the cfe */ - while (cfefile && !feof(cfefile) && !ferror(cfefile)) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), cfefile); - fwrite(readbuf, sizeof(uint8_t), read, binfile); - } - - } else { - cfelen = 0; - } - - if (!args->root_first_flag) { - /* Build the kernel address and length (doesn't need to be aligned, read only) */ - kerneloff = fwaddr + sizeof(tag); - - kernellen = getlen(kernelfile); - - if (!args->kernel_file_has_header_flag) { - /* Build the kernel header */ - khdr.loadaddr = htonl(load_address); - khdr.entry = htonl(entry); - khdr.lzmalen = htonl(kernellen); - - /* Increase the kernel size by the header size */ - kernellen += sizeof(khdr); - } - - /* Build the rootfs address and length */ - rootfsoff = kerneloff + kernellen; - /* align the start if requested */ - if (args->align_rootfs_flag) - rootfsoff = (rootfsoff % block_size) > 0 ? (((rootfsoff / block_size) + 1) * block_size) : rootfsoff; - else - rootfsoff = (rootfsoff % 4) > 0 ? (((rootfsoff / 4) + 1) * 4) : rootfsoff; - - /* align the end */ - rootfsend = rootfsoff + getlen(rootfsfile); - if ((rootfsend % block_size) > 0) - rootfsend = (((rootfsend / block_size) + 1) * block_size); - rootfslen = rootfsend - rootfsoff; - imagelen = rootfsoff + rootfslen - kerneloff + sizeof(deadcode); - rootfsoffpadlen = rootfsoff - (kerneloff + kernellen); - - /* Seek to the start of the kernel */ - fseek(binfile, kerneloff - fwaddr + cfelen, SEEK_SET); - - /* Write the kernel header */ - fwrite(&khdr, sizeof(khdr), 1, binfile); - - /* Write the kernel */ - while (kernelfile && !feof(kernelfile) && !ferror(kernelfile)) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), kernelfile); - fwrite(readbuf, sizeof(uint8_t), read, binfile); - } - - /* Write the RootFS */ - fseek(binfile, rootfsoff - fwaddr + cfelen, SEEK_SET); - while (rootfsfile && !feof(rootfsfile) && !ferror(rootfsfile)) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), rootfsfile); - fwrite(readbuf, sizeof(uint8_t), read, binfile); - } - - /* Align image to specified erase block size and append deadc0de */ - printf("Data alignment to %dk with 'deadc0de' appended\n", block_size/1024); - fseek(binfile, rootfsoff + rootfslen - fwaddr + cfelen, SEEK_SET); - fwrite(&deadcode, sizeof(uint32_t), 1, binfile); - - oldrootfslen = rootfslen; - if (args->pad_given) { - uint32_t allfs = 0xffffffff; - uint32_t pad_size = args->pad_arg * 1024 * 1024; - - printf("Padding image to %d bytes ...\n", pad_size); - while (imagelen < pad_size) { - fwrite(&allfs, sizeof(uint32_t), 1, binfile); - imagelen += 4; - rootfslen += 4; - } - } - - /* Flush the binfile buffer so that when we read from file, it contains - * everything in the buffer - */ - fflush(binfile); - - /* Compute the crc32 of the entire image (deadC0de included) */ - imagecrc = compute_crc32(imagecrc, binfile, kerneloff - fwaddr + cfelen, imagelen); - /* Compute the crc32 of the kernel and padding between kernel and rootfs) */ - kernelcrc = compute_crc32(kernelcrc, binfile, kerneloff - fwaddr + cfelen, kernellen + rootfsoffpadlen); - /* Compute the crc32 of the kernel and padding between kernel and rootfs) */ - kernelfscrc = compute_crc32(kernelfscrc, binfile, kerneloff - fwaddr + cfelen, kernellen + rootfsoffpadlen + rootfslen + sizeof(deadcode)); - /* Compute the crc32 of the flashImageStart to rootLength. - * The broadcom firmware assumes the rootfs starts the image, - * therefore uses the rootfs start to determine where to flash - * the image. Since we have the kernel first we have to give - * it the kernel address, but the crc uses the length - * associated with this address, which is added to the kernel - * length to determine the length of image to flash and thus - * needs to be rootfs + deadcode - */ - rootfscrc = compute_crc32(rootfscrc, binfile, kerneloff - fwaddr + cfelen, rootfslen + sizeof(deadcode)); - - } else { - /* Build the kernel address and length (doesn't need to be aligned, read only) */ - rootfsoff = fwaddr + sizeof(tag); - oldrootfslen = getlen(rootfsfile); - rootfslen = oldrootfslen; - rootfslen = ( (rootfslen % block_size) > 0 ? (((rootfslen / block_size) + 1) * block_size) : rootfslen ); - oldrootfslen = rootfslen; - - kerneloff = rootfsoff + rootfslen; - kernellen = getlen(kernelfile); - - imagelen = cfelen + rootfslen + kernellen; - - /* Seek to the start of the kernel */ - fseek(binfile, kerneloff - fwaddr + cfelen, SEEK_SET); - - if (!args->kernel_file_has_header_flag) { - /* Build the kernel header */ - khdr.loadaddr = htonl(load_address); - khdr.entry = htonl(entry); - khdr.lzmalen = htonl(kernellen); - - /* Write the kernel header */ - fwrite(&khdr, sizeof(khdr), 1, binfile); - - /* Increase the kernel size by the header size */ - kernellen += sizeof(khdr); - } - - /* Write the kernel */ - while (kernelfile && !feof(kernelfile) && !ferror(kernelfile)) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), kernelfile); - fwrite(readbuf, sizeof(uint8_t), read, binfile); - } - - /* Write the RootFS */ - fseek(binfile, rootfsoff - fwaddr + cfelen, SEEK_SET); - while (rootfsfile && !feof(rootfsfile) && !ferror(rootfsfile)) { - read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), rootfsfile); - fwrite(readbuf, sizeof(uint8_t), read, binfile); - } - - /* Flush the binfile buffer so that when we read from file, it contains - * everything in the buffer - */ - fflush(binfile); - - /* Compute the crc32 of the entire image (deadC0de included) */ - imagecrc = compute_crc32(imagecrc, binfile, sizeof(tag), imagelen); - /* Compute the crc32 of the kernel and padding between kernel and rootfs) */ - kernelcrc = compute_crc32(kernelcrc, binfile, kerneloff - fwaddr + cfelen, kernellen + rootfsoffpadlen); - kernelfscrc = compute_crc32(kernelfscrc, binfile, rootfsoff - fwaddr + cfelen, kernellen + rootfslen); - rootfscrc = compute_crc32(rootfscrc, binfile, rootfsoff - fwaddr + cfelen, rootfslen); - } - - /* Close the files */ - if (cfefile) { - fclose(cfefile); - } - fclose(kernelfile); - fclose(rootfsfile); - - /* Build the tag */ - strncpy(tag.tagVersion, args->tag_version_arg, sizeof(tag.tagVersion) - 1); - strncpy(tag.sig_1, args->signature_arg, sizeof(tag.sig_1) - 1); - strncpy(tag.sig_2, args->signature2_arg, sizeof(tag.sig_2) - 1); - strncpy(tag.chipid, args->chipid_arg, sizeof(tag.chipid) - 1); - strncpy(tag.boardid, args->boardid_arg, sizeof(tag.boardid) - 1); - strcpy(tag.big_endian, "1"); - sprintf(tag.totalLength, "%lu", imagelen); - - if (args->cfe_given) { - sprintf(tag.cfeAddress, "%" PRIu32, flash_start); - sprintf(tag.cfeLength, "%lu", cfelen); - } else { - /* We don't include CFE */ - strcpy(tag.cfeAddress, "0"); - strcpy(tag.cfeLength, "0"); - } - - sprintf(tag.kernelAddress, "%lu", kerneloff); - sprintf(tag.kernelLength, "%lu", kernellen + rootfsoffpadlen); - - if (args->root_first_flag) { - sprintf(tag.flashImageStart, "%lu", rootfsoff); - sprintf(tag.flashRootLength, "%lu", rootfslen); - } else { - sprintf(tag.flashImageStart, "%lu", kerneloff); - sprintf(tag.flashRootLength, "%lu", rootfslen + sizeof(deadcode)); - } - int2tag(tag.rootLength, oldrootfslen + sizeof(deadcode)); - - if (args->rsa_signature_given) { - strncpy(tag.rsa_signature, args->rsa_signature_arg, RSASIG_LEN); - } - - if (args->layoutver_given) { - strncpy(tag.flashLayoutVer, args->layoutver_arg, TAGLAYOUT_LEN); - } - - if (args->info1_given) { - strncpy(tag.information1, args->info1_arg, TAGINFO1_LEN); - } - - if (args->info2_given) { - strncpy(tag.information2, args->info2_arg, TAGINFO2_LEN); - } - - if (args->reserved2_given) { - strncpy(tag.reserved2, args->reserved2_arg, 16); - } - - if (args->altinfo_given) { - strncpy(tag.information1, args->altinfo_arg, TAGINFO1_LEN); - } - - if (args->second_image_flag_given) { - if (strncmp(args->second_image_flag_arg, "2", DUALFLAG_LEN) != 0) { - strncpy(tag.dualImage, args->second_image_flag_arg, DUALFLAG_LEN); - } - } - - if (args->inactive_given) { - if (strncmp(args->inactive_arg, "2", INACTIVEFLAG_LEN) != 0) { - strncpy(tag.inactiveFlag, args->second_image_flag_arg, INACTIVEFLAG_LEN); - } - } - - for (i = 0; i < NUM_PIRELLI; i++) { - if (strncmp(args->boardid_arg, pirellitab[i], BOARDID_LEN) == 0) { - is_pirelli = 1; - break; - } - } - - if ( !is_pirelli ) { - int2tag(tag.imageCRC, kernelfscrc); - } else { - int2tag(tag.imageCRC, kernelcrc); - } - - int2tag(&(tag.rootfsCRC[0]), rootfscrc); - int2tag(tag.kernelCRC, kernelcrc); - int2tag(tag.fskernelCRC, kernelfscrc); - int2tag(tag.headerCRC, cyg_crc32_accumulate(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20)); - - fseek(binfile, 0L, SEEK_SET); - fwrite(&tag, sizeof(uint8_t), sizeof(tag), binfile); - - fflush(binfile); - fclose(binfile); - - return 0; -} - -int main(int argc, char **argv) -{ - char *kernel, *rootfs, *bin; - uint32_t flash_start, image_offset, block_size, load_address, entry; - flash_start = image_offset = block_size = load_address = entry = 0; - struct gengetopt_args_info parsed_args; - - kernel = rootfs = bin = NULL; - - if (imagetag_cmdline(argc, argv, &parsed_args)) { - exit(1); - } - - printf("Broadcom 63xx image tagger - v2.0.0\n"); - printf("Copyright (C) 2008 Axel Gembe\n"); - printf("Copyright (C) 2009-2010 Daniel Dickinson\n"); - printf("Licensed under the terms of the Gnu General Public License\n"); - - kernel = parsed_args.kernel_arg; - rootfs = parsed_args.rootfs_arg; - bin = parsed_args.output_arg; - if (strlen(parsed_args.tag_version_arg) >= TAGVER_LEN) { - fprintf(stderr, "Error: Tag Version (tag_version,v) too long.\n"); - exit(1); - } - if (strlen(parsed_args.boardid_arg) >= BOARDID_LEN) { - fprintf(stderr, "Error: Board ID (boardid,b) too long.\n"); - exit(1); - } - if (strlen(parsed_args.chipid_arg) >= CHIPID_LEN) { - fprintf(stderr, "Error: Chip ID (chipid,c) too long.\n"); - exit(1); - } - if (strlen(parsed_args.signature_arg) >= SIG1_LEN) { - fprintf(stderr, "Error: Magic string (signature,a) too long.\n"); - exit(1); - } - if (strlen(parsed_args.signature2_arg) >= SIG2_LEN) { - fprintf(stderr, "Error: Second magic string (signature2,m) too long.\n"); - exit(1); - } - if (parsed_args.layoutver_given) { - if (strlen(parsed_args.layoutver_arg) > FLASHLAYOUTVER_LEN) { - fprintf(stderr, "Error: Flash layout version (layoutver,y) too long.\n"); - exit(1); - } - } - if (parsed_args.rsa_signature_given) { - if (strlen(parsed_args.rsa_signature_arg) > RSASIG_LEN) { - fprintf(stderr, "Error: RSA Signature (rsa_signature,r) too long.\n"); - exit(1); - } - } - - if (parsed_args.info1_given) { - if (strlen(parsed_args.info1_arg) >= TAGINFO1_LEN) { - fprintf(stderr, "Error: Vendor Information 1 (info1) too long.\n"); - exit(1); - } - } - - if (parsed_args.info2_given) { - if (strlen(parsed_args.info2_arg) >= TAGINFO2_LEN) { - fprintf(stderr, "Error: Vendor Information 2 (info2) too long.\n"); - exit(1); - } - } - - if (parsed_args.altinfo_given) { - if (strlen(parsed_args.altinfo_arg) >= ALTTAGINFO_LEN) { - fprintf(stderr, "Error: Vendor Information 1 (info1) too long.\n"); - exit(1); - } - } - - if (parsed_args.pad_given) { - if (parsed_args.pad_arg < 0) { - fprintf(stderr, "Error: pad size must be positive.\r"); - exit(1); - } - } - - flash_start = strtoul(parsed_args.flash_start_arg, NULL, 16); - image_offset = strtoul(parsed_args.image_offset_arg, NULL, 16); - block_size = strtoul(parsed_args.block_size_arg, NULL, 16); - - if (!parsed_args.kernel_file_has_header_flag) { - load_address = strtoul(parsed_args.load_addr_arg, NULL, 16); - entry = strtoul(parsed_args.entry_arg, NULL, 16); - if (load_address == 0) { - fprintf(stderr, "Error: Invalid value for load address\n"); - } - if (entry == 0) { - fprintf(stderr, "Error: Invalid value for entry\n"); - } - } - - return tagfile(kernel, rootfs, bin, &parsed_args, flash_start, image_offset, block_size, load_address, entry); -} |