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firmware-utils/mktplinkfw: add ability to put jffs2 eof marker into the image

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29544 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2011-12-15 22:03:42 +00:00
parent 57705b7a08
commit a7f91afe84
1 changed files with 45 additions and 1 deletions
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46
tools/firmware-utils/src/mktplinkfw.c
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@ -119,6 +119,8 @@ 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;
@ -333,6 +335,7 @@ static void usage(int status)
" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
" -o <file> write output to the file <file>\n"
" -s strip padding from the end of the image\n"
" -j add jffs2 end-of-filesystem markers\n"
" -N <vendor> set image vendor to <vendor>\n"
" -V <version> set image version to <version>\n"
" -i <file> inspect given firmware file <file>\n"
@ -545,6 +548,40 @@ static void fill_header(char *buf, int len)
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;
@ -606,6 +643,7 @@ static int build_fw(void)
p = buf + writelen;
else
p = buf + rootfs_ofs;
ret = read_to_buf(&rootfs_info, p);
if (ret)
goto out_free_buf;
@ -614,6 +652,9 @@ static int build_fw(void)
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)
@ -855,7 +896,7 @@ int main(int argc, char *argv[])
while ( 1 ) {
int c;
c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhs");
c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsj");
if (c == -1)
break;
@ -908,6 +949,9 @@ int main(int argc, char *argv[])
case 'i':
inspect_info.file_name = optarg;
break;
case 'j':
add_jffs2_eof = 1;
break;
case 'x':
extract = 1;
break;