diff options
Diffstat (limited to 'tools/firmware-utils')
| -rw-r--r-- | tools/firmware-utils/src/mktplinkfw.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/tools/firmware-utils/src/mktplinkfw.c b/tools/firmware-utils/src/mktplinkfw.c index 1c3f49dcff..d15ca5bf45 100644 --- a/tools/firmware-utils/src/mktplinkfw.c +++ b/tools/firmware-utils/src/mktplinkfw.c @@ -145,6 +145,8 @@ static int combined; static int strip_padding; static int add_jffs2_eof; static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde}; +static uint32_t fw_max_len; +static uint32_t reserved_space; static struct file_info inspect_info; static int extract = 0; @@ -463,6 +465,7 @@ static void usage(int status) " -v <version> set firmware version to <version>\n" " -i <file> inspect given firmware file <file>\n" " -x extract kernel and rootfs while inspecting (requires -i)\n" +" -X <size> reserve <size> bytes in the firmware image (hexval prefixed with 0x)\n" " -h show this screen\n" ); @@ -579,6 +582,13 @@ static int check_options(void) if (!rootfs_ofs) rootfs_ofs = layout->rootfs_ofs; + if (reserved_space > layout->fw_max_len) { + ERR("reserved space is not valid"); + return -1; + } + + fw_max_len = layout->fw_max_len - reserved_space; + if (kernel_info.file_name == NULL) { ERR("no kernel image specified"); return -1; @@ -592,7 +602,7 @@ static int check_options(void) if (combined) { if (kernel_info.file_size > - layout->fw_max_len - sizeof(struct fw_header)) { + fw_max_len - sizeof(struct fw_header)) { ERR("kernel image is too big"); return -1; } @@ -614,7 +624,7 @@ static int check_options(void) DBG("kernel length aligned to %u", kernel_len); if (kernel_len + rootfs_info.file_size > - layout->fw_max_len - sizeof(struct fw_header)) { + fw_max_len - sizeof(struct fw_header)) { ERR("images are too big"); return -1; } @@ -626,7 +636,7 @@ static int check_options(void) } if (rootfs_info.file_size > - (layout->fw_max_len - rootfs_ofs)) { + (fw_max_len - rootfs_ofs)) { ERR("rootfs image is too big"); return -1; } @@ -1029,7 +1039,7 @@ 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:xhsjv:"); + c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xX:hsjv:"); if (c == -1) break; @@ -1094,6 +1104,9 @@ int main(int argc, char *argv[]) case 'h': usage(EXIT_SUCCESS); break; + case 'X': + sscanf(optarg, "0x%x", &reserved_space); + break; default: usage(EXIT_FAILURE); break; |