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authorGabor Juhos <juhosg@openwrt.org>2011-12-15 22:03:42 +0000
committerGabor Juhos <juhosg@openwrt.org>2011-12-15 22:03:42 +0000
commit29a2c2ea80441895a2ffe100d854d2b26d5fa606 (patch)
tree8979f94b4c6b00bdea14d322a020aca09b097164 /tools/firmware-utils/src/mktplinkfw.c
parent850be54b72cc8129050c3b239d96359245db61a5 (diff)
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firmware-utils/mktplinkfw: add ability to put jffs2 eof marker into the image
SVN-Revision: 29544
Diffstat (limited to 'tools/firmware-utils/src/mktplinkfw.c')
-rw-r--r--tools/firmware-utils/src/mktplinkfw.c46
1 files changed, 45 insertions, 1 deletions
diff --git a/tools/firmware-utils/src/mktplinkfw.c b/tools/firmware-utils/src/mktplinkfw.c
index 174df957fb..bc3a2f377c 100644
--- a/tools/firmware-utils/src/mktplinkfw.c
+++ b/tools/firmware-utils/src/mktplinkfw.c
@@ -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;