Add signature support
Change-Id: Idf5b6144b78e156e6c77e656cfe14097750259e5
diff --git a/dtbhtool/mkbootimg.c b/dtbhtool/mkbootimg.c
index 06fc95b..09e2e78 100644
--- a/dtbhtool/mkbootimg.c
+++ b/dtbhtool/mkbootimg.c
@@ -67,6 +67,7 @@
" [ --pagesize <pagesize> ]\n"
" [ --ramdisk_offset <address> ]\n"
" [ --dt <filename> ]\n"
+ " [ --signature <filename> ]\n"
" -o|--output <filename>\n"
);
return 1;
@@ -109,6 +110,8 @@
char *board = "";
char *dt_fn = 0;
void *dt_data = 0;
+ char *sig_fn = 0;
+ void *sig_data = 0;
unsigned pagesize = 2048;
int fd;
SHA_CTX ctx;
@@ -162,6 +165,8 @@
}
} else if(!strcmp(arg, "--dt")) {
dt_fn = val;
+ } else if(!strcmp(arg, "--signature")) {
+ sig_fn = val;
} else {
return usage();
}
@@ -236,6 +241,14 @@
}
}
+ if(sig_fn) {
+ sig_data = load_file(sig_fn, 0);
+ if (sig_data == 0) {
+ fprintf(stderr,"error: could not load signature '%s'\n", sig_fn);
+ return 1;
+ }
+ }
+
/* put a hash of the contents in the header so boot images can be
* differentiated based on their first 2k.
*/
@@ -278,6 +291,11 @@
if(write(fd, dt_data, hdr.dt_size) != hdr.dt_size) goto fail;
if(write_padding(fd, pagesize, hdr.dt_size)) goto fail;
}
+
+ if(sig_data) {
+ if(write(fd, sig_data, 256) != 256) goto fail;
+ }
+
return 0;
fail: