tools/firmware-utils/src/imagetag.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2008 Axel Gembe <ago@bastart.eu.org>
   7  * Copyright (C) 2009 Daniel Dickinson <crazycshore@gmail.com>
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <stdint.h>
  14 #include <time.h>
  15 #include <unistd.h>
  16 #include <sys/stat.h>
  17 #include <netinet/in.h>
  18
  19 #include "bcm_tag.h"
  20
  21 #define IMAGETAG_MAGIC1                 "Broadcom Corporatio"
  22 #define IMAGETAG_MAGIC2                 "ver. 2.0"
  23 #define IMAGETAG_VER                    "6"
  24 #define IMAGETAG_DEFAULT_LOADADDR       0x80010000
  25 #define DEFAULT_FW_OFFSET               0x10000
  26 #define DEFAULT_FLASH_START             0xBFC00000
  27 #define DEFAULT_FLASH_BS                (64 * 1024)
  28 #define DEADCODE                        0xDEADC0DE
  29
  30 union int2char {
  31   uint32_t input;
  32   unsigned char output[4];
  33 };
  34
  35 /* This appears to be necessary due to alignment issues */
  36 #define int2tag(tag, value)  intchar.input = htonl(value);      \
  37           strncpy(tag, intchar.output, sizeof(union int2char))
  38
  39 /* Kernel header */
  40 struct kernelhdr {
  41         uint32_t                loadaddr;       /* Kernel load address */
  42         uint32_t                entry;          /* Kernel entry point address */
  43         uint32_t                lzmalen;        /* Compressed length of the LZMA data that follows */
  44 };
  45
  46 static struct tagiddesc_t tagidtab[NUM_TAGID] = TAGID_DEFINITIONS;
  47
  48 static uint32_t crc32tab[256] = {
  49         0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
  50         0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
  51         0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
  52         0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
  53         0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
  54         0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
  55         0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
  56         0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
  57         0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
  58         0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
  59         0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
  60         0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
  61         0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
  62         0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
  63         0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
  64         0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
  65         0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
  66         0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
  67         0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
  68         0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
  69         0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
  70         0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
  71         0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
  72         0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
  73         0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
  74         0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
  75         0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
  76         0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
  77         0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
  78         0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
  79         0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
  80         0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
  81 };
  82
  83 uint32_t crc32(uint32_t crc, uint8_t *data, size_t len)
  84 {
  85         while (len--)
  86                 crc = (crc >> 8) ^ crc32tab[(crc ^ *data++) & 0xFF];
  87
  88         return crc;
  89 }
  90
  91 uint32_t compute_crc32(uint32_t crc, FILE *binfile, size_t compute_start, size_t compute_len)
  92 {
  93         uint8_t readbuf[1024];
  94         size_t read;
  95
  96         fseek(binfile, compute_start, SEEK_SET);
  97
  98         /* read block of 1024 bytes */
  99         while (binfile && !feof(binfile) && !ferror(binfile) && (compute_len >= sizeof(readbuf))) {
 100                 read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), binfile);
 101                 crc = crc32(crc, readbuf, read);
 102                 compute_len = compute_len - read;
 103         }
 104
 105         /* Less than 1024 bytes remains, read compute_len bytes */
 106         if (binfile && !feof(binfile) && !ferror(binfile) && (compute_len > 0)) {
 107                 read = fread(readbuf, sizeof(uint8_t), compute_len, binfile);
 108                 crc = crc32(crc, readbuf, read);
 109         }
 110
 111         return crc;
 112 }
 113
 114 size_t getlen(FILE *fp)
 115 {
 116         size_t retval, curpos;
 117
 118         if (!fp)
 119                 return 0;
 120
 121         curpos = ftell(fp);
 122         fseek(fp, 0, SEEK_END);
 123         retval = ftell(fp);
 124         fseek(fp, curpos, SEEK_SET);
 125
 126         return retval;
 127 }
 128
 129 int tagfile(const char *kernel, const char *rootfs, const char *bin,
 130             const char *boardid, const char *chipid, const uint32_t fwaddr,
 131             const uint32_t loadaddr, const uint32_t entry,
 132             const char *ver, const char *magic2, const uint32_t flash_bs,
 133             const char *tagid, const char *information)
 134 {
 135         union bcm_tag tag;
 136         struct kernelhdr khdr;
 137         FILE *kernelfile = NULL, *rootfsfile = NULL, *binfile;
 138         size_t kerneloff, kernellen, rootfsoff, rootfslen, read, imagelen, rootfsoffpadlen;
 139         uint8_t readbuf[1024];
 140         uint32_t imagecrc = IMAGETAG_CRC_START;
 141         uint32_t kernelcrc = IMAGETAG_CRC_START;
 142         uint32_t rootfscrc = IMAGETAG_CRC_START;
 143         const uint32_t deadcode = htonl(DEADCODE);
 144         union int2char intchar;
 145
 146         memset(&tag, 0, sizeof(union bcm_tag));
 147
 148         /* All imagetags have boardid in the same location and of the same
 149          * size, so we just use the bccfe one
 150          */
 151         if (strlen(boardid) >= sizeof(tag.bccfe.boardid)) {
 152                 fprintf(stderr, "Board id is too long!\n");
 153                 return 1;
 154         }
 155
 156         /* Likewise chipid */
 157         if (strlen(chipid) >= sizeof(tag.bccfe.chipid)) {
 158                 fprintf(stderr, "Chip id is too long!\n");
 159                 return 1;
 160         }
 161
 162         if (kernel && !(kernelfile = fopen(kernel, "rb"))) {
 163                 fprintf(stderr, "Unable to open kernel \"%s\"\n", kernel);
 164                 return 1;
 165         }
 166
 167         if (rootfs && !(rootfsfile = fopen(rootfs, "rb"))) {
 168                 fprintf(stderr, "Unable to open rootfs \"%s\"\n", rootfs);
 169                 return 1;
 170         }
 171
 172         if (!bin || !(binfile = fopen(bin, "wb+"))) {
 173                 fprintf(stderr, "Unable to open output file \"%s\"\n", bin);
 174                 return 1;
 175         }
 176
 177         /* Build the kernel address and length (doesn't need to be aligned, read only) */
 178         kerneloff = fwaddr + sizeof(tag);
 179         kernellen = getlen(kernelfile);
 180
 181         /* Build the kernel header */
 182         khdr.loadaddr   = htonl(loadaddr);
 183         khdr.entry      = htonl(entry);
 184         khdr.lzmalen    = htonl(kernellen);
 185
 186         /* Increase the kernel size by the header size */
 187         kernellen += sizeof(khdr);
 188
 189         /* Build the rootfs address and length (start and end do need to be aligned on flash erase block boundaries */
 190         rootfsoff = kerneloff + kernellen;
 191         rootfsoff = (rootfsoff % flash_bs) > 0 ? (((rootfsoff / flash_bs) + 1) * flash_bs) : rootfsoff;
 192         rootfslen = getlen(rootfsfile);
 193         rootfslen = ( (rootfslen % flash_bs) > 0 ? (((rootfslen / flash_bs) + 1) * flash_bs) : rootfslen );
 194         imagelen = rootfsoff + rootfslen - kerneloff + sizeof(deadcode);
 195         rootfsoffpadlen = rootfsoff - (kerneloff + kernellen);
 196
 197         /* Seek to the start of the kernel */
 198         fseek(binfile, kerneloff - fwaddr, SEEK_SET);
 199
 200         /* Write the kernel header */
 201         fwrite(&khdr, sizeof(khdr), 1, binfile);
 202
 203         /* Write the kernel */
 204         while (kernelfile && !feof(kernelfile) && !ferror(kernelfile)) {
 205                 read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), kernelfile);
 206                 fwrite(readbuf, sizeof(uint8_t), read, binfile);
 207         }
 208
 209         /* Write the RootFS */
 210         fseek(binfile, rootfsoff - fwaddr, SEEK_SET);
 211         while (rootfsfile && !feof(rootfsfile) && !ferror(rootfsfile)) {
 212                 read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), rootfsfile);
 213                 fwrite(readbuf, sizeof(uint8_t), read, binfile);
 214         }
 215
 216         /* Align image to specified erase block size and append deadc0de */
 217         printf("Data alignment to %dk with 'deadc0de' appended\n", flash_bs/1024);
 218         fseek(binfile, rootfsoff + rootfslen - fwaddr, SEEK_SET);
 219         fwrite(&deadcode, sizeof(uint32_t), 1, binfile);
 220
 221
 222         /* Choose and compute the CRC32 that should be inserted in the tag */
 223         if ( tagid && ( (strncmp(tagid, "bccfe", TAGID_LEN) == 0)) || ( strncmp(tagid, "bc300", TAGID_LEN) == 0)) {
 224                 /* Compute the crc32 of the entire image (deadC0de included) */
 225                 imagecrc = compute_crc32(imagecrc, binfile, kerneloff - fwaddr, imagelen);
 226         } else if ( tagid && (strncmp(tagid, "ag306", TAGID_LEN) == 0)) {
 227                 /* Compute the crc32 of the kernel and padding between kernel and rootfs) */
 228                 kernelcrc = compute_crc32(kernelcrc, binfile, kerneloff - fwaddr, kernellen + rootfsoffpadlen);
 229         } else if ( tagid && ( (strncmp(tagid, "bc308", TAGID_LEN) == 0))) {
 230                 /* Compute the crc32 of the entire image (deadC0de included) */
 231                 imagecrc = compute_crc32(imagecrc, binfile, kerneloff - fwaddr, imagelen);
 232                 /* Compute the crc32 of the kernel and padding between kernel and rootfs) */
 233                 kernelcrc = compute_crc32(kernelcrc, binfile, kerneloff - fwaddr, kernellen + rootfsoffpadlen);
 234         } else if ( tagid && (strncmp(tagid, "bc310", TAGID_LEN) == 0) ) {
 235                 /* Compute the crc32 of the entire image (deadC0de included) */
 236                 imagecrc = compute_crc32(imagecrc, binfile, kerneloff - fwaddr, imagelen);
 237                 /* Compute the crc32 of the kernel and padding between kernel and rootfs) */
 238                 kernelcrc = compute_crc32(kernelcrc, binfile, kerneloff - fwaddr, kernellen + rootfsoffpadlen);
 239                 /* Compute the crc32 of the flashImageStart to rootLength.
 240                  * The broadcom firmware assumes the rootfs starts the image,
 241                  * therefore uses the rootfs start to determine where to flash
 242                  * the image.  Since we have the kernel first we have to give
 243                  * it the kernel address, but the crc uses the length
 244                  * associated with this address, which is added to the kernel
 245                  * length to determine the length of image to flash and thus
 246                  * needs to be rootfs + deadcode
 247                  */
 248                 rootfscrc = compute_crc32(rootfscrc, binfile, kerneloff - fwaddr, rootfslen + sizeof(deadcode));
 249         }
 250
 251         /* Close the files */
 252         fclose(kernelfile);
 253         fclose(rootfsfile);
 254
 255         if ( tagid && (strcmp(tagid, "bccfe") == 0)) {
 256           /* Build the tag */
 257           strncpy(tag.bccfe.tagVersion, ver, TAGVER_LEN);
 258           strncpy(tag.bccfe.sig_1, IMAGETAG_MAGIC1, sizeof(tag.bccfe.sig_1) - 1);
 259           strncpy(tag.bccfe.sig_2, magic2, sizeof(tag.bccfe.sig_2) - 1);
 260           strcpy(tag.bccfe.chipid, chipid);
 261           strcpy(tag.bccfe.boardid, boardid);
 262           strcpy(tag.bccfe.big_endian, "1");
 263           sprintf(tag.bccfe.totalLength, "%lu", imagelen);
 264
 265           /* We don't include CFE */
 266           strcpy(tag.bccfe.cfeAddress, "0");
 267           strcpy(tag.bccfe.cfeLength, "0");
 268
 269           if (kernelfile) {
 270             sprintf(tag.bccfe.kernelAddress, "%lu", kerneloff);
 271             sprintf(tag.bccfe.kernelLength, "%lu", kernellen + rootfsoffpadlen);
 272           }
 273
 274           if (rootfsfile) {
 275             sprintf(tag.bccfe.rootAddress, "%lu", rootfsoff);
 276             sprintf(tag.bccfe.rootLength, "%lu", rootfslen);
 277           }
 278
 279           strncpy(tag.bccfe.tagId, "bccfe", TAGID_LEN);
 280
 281           int2tag(tag.bccfe.tagIdCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&(tag.bccfe.tagId[0]), TAGID_LEN));
 282           int2tag(tag.bccfe.imageCRC, imagecrc);
 283           int2tag(tag.bccfe.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 284         } else if ( tagid && (strcmp(tagid, "bc300") == 0)) {
 285           /* Build the tag */
 286           strncpy(tag.bc300.tagVersion, ver, TAGVER_LEN);
 287           strncpy(tag.bc300.sig_1, IMAGETAG_MAGIC1, sizeof(tag.bc300.sig_1) - 1);
 288           strncpy(tag.bc300.sig_2, magic2, sizeof(tag.bc300.sig_2) - 1);
 289           strcpy(tag.bc300.chipid, chipid);
 290           strcpy(tag.bc300.boardid, boardid);
 291           strcpy(tag.bc300.big_endian, "1");
 292           sprintf(tag.bc300.totalLength, "%lu", imagelen);
 293
 294           /* We don't include CFE */
 295           strcpy(tag.bc300.cfeAddress, "0");
 296           strcpy(tag.bc300.cfeLength, "0");
 297
 298           if (kernelfile) {
 299             sprintf(tag.bc300.kernelAddress, "%lu", kerneloff);
 300             sprintf(tag.bc300.kernelLength, "%lu", kernellen + rootfsoffpadlen);
 301           }
 302
 303           if (rootfsfile) {
 304             sprintf(tag.bc300.flashImageStart, "%lu", kerneloff);
 305             sprintf(tag.bc300.flashRootLength, "%lu", rootfslen + sizeof(deadcode));
 306             sprintf(tag.bc300.rootAddress, "%lu", rootfsoff);
 307             sprintf(tag.bc300.rootLength, "%lu", rootfslen);
 308           }
 309
 310           strncpy(tag.bc300.tagId, "bc300", TAGID_LEN);
 311
 312           int2tag(tag.bc300.tagIdCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&(tag.bc300.tagId[0]), TAGID_LEN));
 313           int2tag(tag.bc300.imageCRC, imagecrc);
 314           int2tag(tag.bc300.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 315         } else if ( tagid && (strcmp(tagid, "ag306") == 0)) {
 316           /* Build the tag */
 317           strncpy(tag.ag306.tagVersion, ver, TAGVER_LEN);
 318           strncpy(tag.ag306.sig_1, IMAGETAG_MAGIC1, sizeof(tag.ag306.sig_1) - 1);
 319           strncpy(tag.ag306.sig_2, magic2, sizeof(tag.ag306.sig_2) - 1);
 320           strcpy(tag.ag306.chipid, chipid);
 321           strcpy(tag.ag306.boardid, boardid);
 322           strcpy(tag.ag306.big_endian, "1");
 323           sprintf(tag.ag306.totalLength, "%lu", imagelen);
 324
 325           /* We don't include CFE */
 326           strcpy(tag.ag306.cfeAddress, "0");
 327           strcpy(tag.ag306.cfeLength, "0");
 328
 329           if (kernelfile) {
 330             sprintf(tag.ag306.kernelAddress, "%lu", kerneloff);
 331             sprintf(tag.ag306.kernelLength, "%lu", kernellen + rootfsoffpadlen);
 332           }
 333
 334           if (rootfsfile) {
 335             sprintf(tag.ag306.flashImageStart, "%lu", kerneloff);
 336             sprintf(tag.ag306.flashRootLength, "%lu", rootfslen + sizeof(deadcode));
 337             sprintf(tag.ag306.rootAddress, "%lu", rootfsoff);
 338             sprintf(tag.ag306.rootLength, "%lu", rootfslen);
 339           }
 340
 341           strncpy(tag.ag306.tagId, "ag306", TAGID_LEN);
 342
 343           int2tag(tag.ag306.tagIdCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&(tag.ag306.tagId[0]), TAGID_LEN));
 344           int2tag(tag.ag306.kernelCRC, kernelcrc);
 345           int2tag(tag.ag306.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 346         } else if ( tagid && (strcmp(tagid, "bc308") == 0)) {
 347           /* Build the tag */
 348           strncpy(tag.bc308.tagVersion, ver, TAGVER_LEN);
 349           strncpy(tag.bc308.sig_1, IMAGETAG_MAGIC1, sizeof(tag.bc308.sig_1) - 1);
 350           strncpy(tag.bc308.sig_2, magic2, sizeof(tag.bc308.sig_2) - 1);
 351           strcpy(tag.bc308.chipid, chipid);
 352           strcpy(tag.bc308.boardid, boardid);
 353           strcpy(tag.bc308.big_endian, "1");
 354           sprintf(tag.bc308.totalLength, "%lu", imagelen);
 355
 356           /* We don't include CFE */
 357           strcpy(tag.bc308.cfeAddress, "0");
 358           strcpy(tag.bc308.cfeLength, "0");
 359
 360           if (kernelfile) {
 361             sprintf(tag.bc308.kernelAddress, "%lu", kerneloff);
 362             sprintf(tag.bc308.kernelLength, "%lu", kernellen + rootfsoffpadlen);
 363           }
 364
 365           if (rootfsfile) {
 366             sprintf(tag.bc308.flashImageStart, "%lu", kerneloff);
 367             sprintf(tag.bc308.flashRootLength, "%lu", rootfslen + sizeof(deadcode));
 368             sprintf(tag.bc308.rootAddress, "%lu", rootfsoff);
 369             sprintf(tag.bc308.rootLength, "%lu", rootfslen);
 370           }
 371
 372           strncpy(tag.bc308.tagId, "bc308", TAGID_LEN);
 373           strcpy(tag.bc308.flashLayoutVer, "5"); // This is needed at least for BT Voyager
 374
 375           int2tag(tag.bc308.tagIdCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&(tag.bc308.tagId[0]), TAGID_LEN));
 376           int2tag(tag.bc308.imageCRC, imagecrc);
 377           int2tag(tag.bc308.kernelCRC, kernelcrc);
 378           int2tag(tag.bc308.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 379         } else if ( tagid && (strcmp(tagid, "bc310") == 0)) {
 380           /* Build the tag */
 381           strncpy(tag.bc310.tagVersion, ver, TAGVER_LEN);
 382           strncpy(tag.bc310.sig_1, IMAGETAG_MAGIC1, sizeof(tag.bc310.sig_1) - 1);
 383           strncpy(tag.bc310.sig_2, magic2, sizeof(tag.bc310.sig_2) - 1);
 384           strcpy(tag.bc310.chipid, chipid);
 385           strcpy(tag.bc310.boardid, boardid);
 386           strcpy(tag.bc310.big_endian, "1");
 387           sprintf(tag.bc310.totalLength, "%lu", imagelen);
 388
 389           /* We don't include CFE */
 390           strcpy(tag.bc310.cfeAddress, "0");
 391           strcpy(tag.bc310.cfeLength, "0");
 392
 393           if (kernelfile) {
 394             sprintf(tag.bc310.kernelAddress, "%lu", kerneloff);
 395             sprintf(tag.bc310.kernelLength, "%lu", kernellen + rootfsoffpadlen);
 396           }
 397
 398           if (rootfsfile) {
 399             sprintf(tag.bc310.flashImageStart, "%lu", kerneloff);
 400             sprintf(tag.bc310.flashRootLength, "%lu", rootfslen + sizeof(deadcode));
 401             sprintf(tag.bc310.rootAddress, "%lu", rootfsoff);
 402             sprintf(tag.bc310.rootLength, "%lu", rootfslen);
 403           }
 404
 405           strncpy(tag.bc310.tagId, "bc310", TAGID_LEN);
 406           if (information) {
 407             strncpy(tag.bc310.information1, information, TAGINFO_LEN);
 408           }
 409
 410           int2tag(tag.bc310.tagIdCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&(tag.bc310.tagId[0]), TAGID_LEN));
 411           int2tag(tag.bc310.imageCRC, imagecrc);
 412           int2tag(tag.bc310.kernelCRC, kernelcrc);
 413           int2tag(tag.bc310.rootfsCRC, rootfscrc);
 414           int2tag(tag.bc310.headerCRC, crc32(IMAGETAG_CRC_START, (uint8_t*)&tag, sizeof(tag) - 20));
 415         }
 416
 417         fseek(binfile, 0L, SEEK_SET);
 418         fwrite(&tag, sizeof(uint8_t), sizeof(tag), binfile);
 419
 420         fclose(binfile);
 421
 422         return 0;
 423 }
 424
 425 int main(int argc, char **argv)
 426 {
 427         int c, i;
 428         char *kernel, *rootfs, *bin, *boardid, *chipid, *magic2, *ver, *tagid, *information;
 429         uint32_t flashstart, fwoffset, loadaddr, entry;
 430         uint32_t fwaddr, flash_bs;
 431         int tagidfound = 0;
 432
 433         kernel = rootfs = bin = boardid = chipid = magic2 = ver = tagid = information = NULL;
 434         entry = 0;
 435
 436         flashstart = DEFAULT_FLASH_START;
 437         fwoffset = DEFAULT_FW_OFFSET;
 438         loadaddr = IMAGETAG_DEFAULT_LOADADDR;
 439         flash_bs = DEFAULT_FLASH_BS;
 440
 441         printf("Broadcom image tagger - v0.2.0\n");
 442         printf("Copyright (C) 2008 Axel Gembe\n");
 443         printf("Copyright (C) 2009 Daniel Dickinson\n");
 444
 445         while ((c = getopt(argc, argv, "i:f:o:b:c:s:n:v:m:k:l:e:h:t:d:")) != -1) {
 446                 switch (c) {
 447                         case 'i':
 448                                 kernel = optarg;
 449                                 break;
 450                         case 'f':
 451                                 rootfs = optarg;
 452                                 break;
 453                         case 'o':
 454                                 bin = optarg;
 455                                 break;
 456                         case 'b':
 457                                 boardid = optarg;
 458                                 break;
 459                         case 'c':
 460                                 chipid = optarg;
 461                                 break;
 462                         case 's':
 463                                 flashstart = strtoul(optarg, NULL, 16);
 464                                 break;
 465                         case 'n':
 466                                 fwoffset = strtoul(optarg, NULL, 16);
 467                                 break;
 468                         case 'v':
 469                                 ver = optarg;
 470                                 break;
 471                         case 'm':
 472                                 magic2 = optarg;
 473                                 break;
 474                         case 'k':
 475                                 flash_bs = strtoul(optarg, NULL, 16);
 476                                 break;
 477                         case 'l':
 478                                 loadaddr = strtoul(optarg, NULL, 16);
 479                                 break;
 480                         case 'e':
 481                                 entry = strtoul(optarg, NULL, 16);
 482                                 break;
 483                         case 't':
 484                                 tagid = optarg;
 485                                 break;
 486                         case 'd':
 487                                 information = optarg;
 488                                 break;
 489                         case 'h':
 490                         default:
 491                                 fprintf(stderr, "Usage: imagetag <parameters>\n\n");
 492                                 fprintf(stderr, "       -i <kernel>             - The LZMA compressed kernel file to include in the image\n");
 493                                 fprintf(stderr, "       -f <rootfs>             - The RootFS file to include in the image\n");
 494                                 fprintf(stderr, "       -o <bin>                - The output file\n");
 495                                 fprintf(stderr, "       -b <boardid>            - The board id to set in the image (i.e. \"96345GW2\")\n");
 496                                 fprintf(stderr, "       -c <chipid>             - The chip id to set in the image (i.e. \"6345\")\n");
 497                                 fprintf(stderr, "       -s <flashstart>         - Flash start address (i.e. \"0xBFC00000\"\n");
 498                                 fprintf(stderr, "       -n <fwoffset>           - \n");
 499                                 fprintf(stderr, "       -v <version>            - \n");
 500                                 fprintf(stderr, "       -m <magic2>             - \n");
 501                                 fprintf(stderr, "       -k <flash_bs>           - flash erase block size\n");
 502                                 fprintf(stderr, "       -l <loadaddr>           - Address where the kernel expects to be loaded (defaults to 0x80010000)\n");
 503                                 fprintf(stderr, "       -e <entry>              - Address where the kernel entry point will end up\n");
 504                                 fprintf(stderr, "       -t <tagid> - type if imagetag to create, use 'list' to see available choices");
 505                                 fprintf(stderr, "       -d <information> - vendor specific information, for those that need it");
 506                                 fprintf(stderr, "       -h                      - Displays this text\n\n");
 507                                 return 1;
 508                 }
 509         }
 510
 511         if (!boardid || !chipid) {
 512                 fprintf(stderr, "You need to specify the board (-b) and chip id (-c)!\n");
 513                 return 1;
 514         }
 515
 516         if (entry == 0) {
 517                 fprintf(stderr, "You need to specify the kernel entry (-e)\n");
 518                 return 1;
 519         }
 520
 521         tagidfound = 0;
 522         if (!tagid) {
 523           fprintf(stderr, "You must specify a tagid (-t)\n");
 524         } else {
 525           if (strncmp(tagid, "list", 4) == 0) {
 526             fprintf(stderr, "\n----------------------------------------\n");
 527             fprintf(stderr, "\tAvailable tagId:");
 528             fprintf(stderr, "\n\n");
 529             for (i = 0; i < NUM_TAGID; i++) {
 530               fprintf(stderr, "\t%s\t%s", tagidtab[i].tagid, tagidtab[i].tagiddesc);
 531             }
 532             fprintf(stderr, "\n----------------------------------------\n");
 533             return 0;
 534           }
 535         }
 536
 537         if (tagid) {
 538           for(i = 0; i < NUM_TAGID; i++) {
 539             if (strncmp(tagid, tagidtab[i].tagid, TAGID_LEN) == 0) {
 540               tagidfound = 1;
 541               break;
 542             }
 543           }
 544           if (!tagidfound) {
 545             if (tagid) {
 546               fprintf(stderr, "The tagid you selected '%s' does't exist.\n", tagid);
 547             }
 548             fprintf(stderr, "Use -t list to see the list of available ids");
 549             return 1;
 550           }
 551         }
 552
 553         /* Fallback to defaults */
 554
 555         fwaddr = flashstart + fwoffset;
 556
 557         if (!magic2) {
 558                 magic2 = malloc(sizeof(char) * 14);
 559                 if (!magic2) {
 560                         perror("malloc");
 561                         return 1;
 562                 }
 563                 strcpy(magic2, IMAGETAG_MAGIC2);
 564         }
 565
 566         if (!ver) {
 567                 ver = malloc(sizeof(char) * 4);
 568                 if (!ver) {
 569                         perror("malloc");
 570                         return 1;
 571                 }
 572                 strcpy(ver, IMAGETAG_VER);
 573         }
 574
 575
 576         return tagfile(kernel, rootfs, bin, boardid, chipid, fwaddr, loadaddr, entry, ver, magic2, flash_bs, tagid, information);
 577 }