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@ -23,6 +23,7 @@ |
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#define DEFAULT_FW_OFFSET 0x10000 |
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#define DEFAULT_FLASH_START 0xBFC00000 |
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#define DEFAULT_FLASH_BS (64 * 1024) |
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#define DEADCODE 0xDEADC0DE |
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/* Kernel header */ |
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struct kernelhdr { |
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@ -47,15 +48,19 @@ struct imagetag { |
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uint8_t bigendian[2]; /* 60 - 61: "1" for big endian, "0" for little endian */ |
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uint8_t imagelen[10]; /* 62 - 71: The length of all data that follows */ |
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struct imagecomp cfe; /* 72 - 93: The offset and length of CFE */ |
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struct imagecomp rootfs; /* 94 - 115: The offset and length of the root file system */ |
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struct imagecomp rootfs; /* 94 - 115: The offset and length of the root file system */ |
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struct imagecomp kernel; /* 116 - 137: The offset and length of the kernel */ |
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uint8_t dualimage[2]; /* 138 - 139: use "0" here */ |
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uint8_t inactive[2]; /* 140 - 141: use "0" here */ |
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uint8_t reserved1[74]; /* 142 - 215: reserved */ |
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uint32_t imagecrc; /* 216 - 219: crc of the images (net byte order) */ |
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uint8_t reserved2[16]; /* 220 - 235: reserved */ |
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// uint8_t reserved2[16]; /* 220 - 235: reserved */
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uint8_t reserved2[4]; /* 220 - 223: reserved */ |
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uint8_t wrtrootfsaddr[12]; /* 224 - 235: wrt rootfs address */ |
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uint32_t headercrc; /* 236 - 239: crc starting from sig1 until headercrc (net byte order) */ |
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uint8_t reserved3[16]; /* 240 - 255: reserved */ |
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// uint8_t reserved3[16]; /* 240 - 255: reserved */
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uint8_t reserved3[6]; /* 240 - 245: reserved */ |
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uint8_t wrtrootfslen[10]; /* 246 - 255: wrt rootfs lenght */ |
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}; |
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static uint32_t crc32tab[256] = { |
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@ -101,6 +106,29 @@ uint32_t crc32(uint32_t crc, uint8_t *data, size_t len) |
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return crc; |
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} |
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uint32_t compute_crc32(uint32_t crc, FILE *binfile, size_t compute_start, size_t compute_len) |
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{ |
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uint8_t readbuf[1024]; |
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size_t read; |
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fseek(binfile, compute_start, SEEK_SET); |
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/* read block of 1024 bytes */ |
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while (binfile && !feof(binfile) && !ferror(binfile) && (compute_len >= sizeof(readbuf))) { |
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read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), binfile); |
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crc = crc32(crc, readbuf, read); |
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compute_len = compute_len - read; |
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} |
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/* Less than 1024 bytes remains, read compute_len bytes */ |
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if (binfile && !feof(binfile) && !ferror(binfile) && (compute_len > 0)) { |
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read = fread(readbuf, sizeof(uint8_t), compute_len, binfile); |
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crc = crc32(crc, readbuf, read); |
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} |
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return crc; |
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} |
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size_t getlen(FILE *fp) |
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{ |
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size_t retval, curpos; |
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@ -119,14 +147,16 @@ size_t getlen(FILE *fp) |
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int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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const char *boardid, const char *chipid, const uint32_t fwaddr, |
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const uint32_t loadaddr, const uint32_t entry, |
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const char *ver, const char *magic2, const uint32_t flash_bs) |
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const char *ver, const char *magic2, const uint32_t flash_bs, |
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const char *profile) |
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{ |
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struct imagetag tag; |
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struct kernelhdr khdr; |
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FILE *kernelfile = NULL, *rootfsfile = NULL, *binfile; |
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size_t kerneloff, kernellen, rootfsoff, rootfslen, read; |
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size_t kerneloff, kernellen, rootfsoff, rootfslen, read, imagelen; |
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uint8_t readbuf[1024]; |
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uint32_t crc; |
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uint32_t crc = IMAGETAG_CRC_START; |
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const uint32_t deadcode = htonl(DEADCODE); |
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memset(&tag, 0, sizeof(struct imagetag)); |
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@ -150,7 +180,7 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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return 1; |
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} |
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if (!bin || !(binfile = fopen(bin, "wb"))) { |
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if (!bin || !(binfile = fopen(bin, "wb+"))) { |
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fprintf(stderr, "Unable to open output file \"%s\"\n", bin); |
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return 1; |
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} |
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@ -172,18 +202,17 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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rootfsoff = (rootfsoff % flash_bs) > 0 ? (((rootfsoff / flash_bs) + 1) * flash_bs) : rootfsoff; |
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rootfslen = getlen(rootfsfile); |
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rootfslen = (rootfslen % flash_bs) > 0 ? (((rootfslen / flash_bs) + 1) * flash_bs) : rootfslen; |
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imagelen = rootfsoff + rootfslen - kerneloff + sizeof(deadcode); |
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/* Seek to the start of the kernel */ |
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fseek(binfile, kerneloff - fwaddr, SEEK_SET); |
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/* Write the kernel header */ |
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crc = crc32(IMAGETAG_CRC_START, (uint8_t*)&khdr, sizeof(khdr)); |
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fwrite(&khdr, sizeof(khdr), 1, binfile); |
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/* Write the kernel */ |
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while (kernelfile && !feof(kernelfile) && !ferror(kernelfile)) { |
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read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), kernelfile); |
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crc = crc32(crc, readbuf, read); |
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fwrite(readbuf, sizeof(uint8_t), read, binfile); |
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} |
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@ -191,10 +220,27 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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fseek(binfile, rootfsoff - fwaddr, SEEK_SET); |
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while (rootfsfile && !feof(rootfsfile) && !ferror(rootfsfile)) { |
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read = fread(readbuf, sizeof(uint8_t), sizeof(readbuf), rootfsfile); |
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//crc = crc32(crc, readbuf, read);
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fwrite(readbuf, sizeof(uint8_t), read, binfile); |
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} |
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/* Align image to specified erase block size and append deadc0de */ |
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printf("Data alignment to %dk with 'deadc0de' appended\n", flash_bs/1024); |
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fseek(binfile, rootfsoff + rootfslen - fwaddr, SEEK_SET); |
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fwrite(&deadcode, sizeof(uint32_t), 1, binfile); |
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/* Choose and compute the CRC32 that should be inserted in the tag */ |
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/* and fill reserved tag following profile specification */ |
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if ( profile && (strcmp(profile, "alice") == 0)) { |
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crc = compute_crc32(crc, binfile, kerneloff - fwaddr, kernellen); |
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/* Should fill alice_data and put them on reserved1 */ |
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} |
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else { |
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/* Compute the crc32 of the entire image (deadC0de included) */ |
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crc = compute_crc32(crc, binfile, kerneloff - fwaddr, imagelen); |
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} |
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/* Close the files */ |
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fclose(kernelfile); |
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fclose(rootfsfile); |
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@ -206,7 +252,7 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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strcpy(tag.chipid, chipid); |
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strcpy(tag.boardid, boardid); |
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strcpy(tag.bigendian, "1"); |
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sprintf(tag.imagelen, "%lu", kernellen + rootfslen); |
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sprintf(tag.imagelen, "%lu", imagelen); |
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/* We don't include CFE */ |
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strcpy(tag.cfe.address, "0"); |
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@ -218,8 +264,10 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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} |
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if (rootfsfile) { |
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sprintf(tag.rootfs.address, "%lu", rootfsoff); |
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sprintf(tag.rootfs.len, "%lu", rootfslen); |
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sprintf(tag.rootfs.address, "%lu", kerneloff); |
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sprintf(tag.rootfs.len, "%lu", rootfslen + sizeof(deadcode)); |
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sprintf(tag.wrtrootfsaddr, "%lu", rootfsoff); |
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sprintf(tag.wrtrootfslen, "%lu", rootfslen); |
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} |
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tag.imagecrc = htonl(crc); |
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@ -236,11 +284,11 @@ int tagfile(const char *kernel, const char *rootfs, const char *bin, |
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int main(int argc, char **argv) |
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{ |
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int c; |
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char *kernel, *rootfs, *bin, *boardid, *chipid, *magic2, *ver; |
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char *kernel, *rootfs, *bin, *boardid, *chipid, *magic2, *ver, *profile; |
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uint32_t flashstart, fwoffset, loadaddr, entry; |
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uint32_t fwaddr, flash_bs; |
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kernel = rootfs = bin = boardid = chipid = magic2 = ver = NULL; |
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kernel = rootfs = bin = boardid = chipid = magic2 = ver = profile = NULL; |
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entry = 0; |
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flashstart = DEFAULT_FLASH_START; |
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@ -248,10 +296,10 @@ int main(int argc, char **argv) |
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loadaddr = IMAGETAG_DEFAULT_LOADADDR; |
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flash_bs = DEFAULT_FLASH_BS; |
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printf("Broadcom image tagger - v0.1.1\n"); |
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printf("Broadcom image tagger - v0.1.2\n"); |
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printf("Copyright (C) 2008 Axel Gembe\n"); |
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while ((c = getopt(argc, argv, "i:f:o:b:c:s:n:v:m:k:l:e:h")) != -1) { |
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while ((c = getopt(argc, argv, "i:f:o:b:c:s:n:v:m:k:l:e:h:p:")) != -1) { |
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switch (c) { |
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case 'i': |
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kernel = optarg; |
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@ -289,22 +337,26 @@ int main(int argc, char **argv) |
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case 'e': |
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entry = strtoul(optarg, NULL, 16); |
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break; |
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case 'p': |
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profile = optarg; |
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break; |
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case 'h': |
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default: |
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fprintf(stderr, "Usage: imagetag <parameters>\n"); |
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fprintf(stderr, "-i <kernel> - The LZMA compressed kernel file to include in the image\n"); |
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fprintf(stderr, "-f <rootfs> - The RootFS file to include in the image\n"); |
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fprintf(stderr, "-o <bin> - The output file\n"); |
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fprintf(stderr, "-b <boardid> - The board id to set in the image (i.e. \"96345GW2\")\n"); |
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fprintf(stderr, "-c <chipid> - The chip id to set in the image (i.e. \"6345\")\n"); |
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fprintf(stderr, "-s <flashstart> - Flash start address (i.e. \"0xBFC00000\"\n"); |
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fprintf(stderr, "-n <fwoffset> - \n"); |
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fprintf(stderr, "-v <version> - \n"); |
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fprintf(stderr, "-m <magic2> - \n"); |
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fprintf(stderr, "-k <flash_bs> - \n"); |
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fprintf(stderr, "-l <loadaddr> - Address where the kernel expects to be loaded (defaults to 0x80010000)\n"); |
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fprintf(stderr, "-e <entry> - Address where the kernel entry point will end up\n"); |
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fprintf(stderr, "-h - Displays this text\n"); |
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fprintf(stderr, "Usage: imagetag <parameters>\n\n"); |
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fprintf(stderr, " -i <kernel> - The LZMA compressed kernel file to include in the image\n"); |
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fprintf(stderr, " -f <rootfs> - The RootFS file to include in the image\n"); |
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fprintf(stderr, " -o <bin> - The output file\n"); |
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fprintf(stderr, " -b <boardid> - The board id to set in the image (i.e. \"96345GW2\")\n"); |
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fprintf(stderr, " -c <chipid> - The chip id to set in the image (i.e. \"6345\")\n"); |
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fprintf(stderr, " -s <flashstart> - Flash start address (i.e. \"0xBFC00000\"\n"); |
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fprintf(stderr, " -n <fwoffset> - \n"); |
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fprintf(stderr, " -v <version> - \n"); |
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fprintf(stderr, " -m <magic2> - \n"); |
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fprintf(stderr, " -k <flash_bs> - flash erase block size\n"); |
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fprintf(stderr, " -l <loadaddr> - Address where the kernel expects to be loaded (defaults to 0x80010000)\n"); |
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fprintf(stderr, " -e <entry> - Address where the kernel entry point will end up\n"); |
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fprintf(stderr, " -p <profile> - Specify profile for particular devices, use 'list' to see available devices\n"); |
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fprintf(stderr, " -h - Displays this text\n\n"); |
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return 1; |
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} |
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} |
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@ -318,6 +370,21 @@ int main(int argc, char **argv) |
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fprintf(stderr, "You need to specify the kernel entry (-e)\n"); |
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return 1; |
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} |
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if (profile && (strcmp(profile, "list") == 0)) { |
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fprintf(stderr, "\n----------------------------------------\n"); |
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fprintf(stderr, "\tAvailable Profiles:"); |
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fprintf(stderr, "\n\n"); |
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fprintf(stderr, "\t'alice'\tALICE GATE VoIP 2 Plus Wi-Fi Business"); |
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fprintf(stderr, "\n----------------------------------------\n"); |
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return 0; |
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} |
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/* If the profile increase should found another way of testing the validity */ |
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if (profile && !(strcmp(profile, "alice") == 0)) { |
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fprintf(stderr, "You specified an inexistent profile %s, see the list of availables options\n", profile); |
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return 1; |
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} |
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/* Fallback to defaults */ |
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@ -340,6 +407,7 @@ int main(int argc, char **argv) |
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} |
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strcpy(ver, IMAGETAG_VER); |
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} |
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return tagfile(kernel, rootfs, bin, boardid, chipid, fwaddr, loadaddr, entry, ver, magic2, flash_bs); |
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return tagfile(kernel, rootfs, bin, boardid, chipid, fwaddr, loadaddr, entry, ver, magic2, flash_bs, profile); |
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} |
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