tools: Add firmware authenticated encryption tool
Add firmware authenticated encryption tool which utilizes OpenSSL
library to encrypt firmwares using a key provided via cmdline. Currently
this tool supports AES-GCM as an authenticated encryption algorithm.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Change-Id: I60e296af1b98f1912a19d5f91066be7ea85836e4
diff --git a/tools/encrypt_fw/src/cmd_opt.c b/tools/encrypt_fw/src/cmd_opt.c
new file mode 100644
index 0000000..64180d1
--- /dev/null
+++ b/tools/encrypt_fw/src/cmd_opt.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <cmd_opt.h>
+#include <getopt.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include "debug.h"
+
+/* Command line options */
+static struct option long_opt[CMD_OPT_MAX_NUM+1];
+static const char *help_msg[CMD_OPT_MAX_NUM+1];
+static int num_reg_opt;
+
+void cmd_opt_add(const cmd_opt_t *cmd_opt)
+{
+ assert(cmd_opt != NULL);
+
+ if (num_reg_opt >= CMD_OPT_MAX_NUM) {
+ ERROR("Out of memory. Please increase CMD_OPT_MAX_NUM\n");
+ exit(1);
+ }
+
+ long_opt[num_reg_opt].name = cmd_opt->long_opt.name;
+ long_opt[num_reg_opt].has_arg = cmd_opt->long_opt.has_arg;
+ long_opt[num_reg_opt].flag = 0;
+ long_opt[num_reg_opt].val = cmd_opt->long_opt.val;
+
+ help_msg[num_reg_opt] = cmd_opt->help_msg;
+
+ num_reg_opt++;
+}
+
+const struct option *cmd_opt_get_array(void)
+{
+ return long_opt;
+}
+
+const char *cmd_opt_get_name(int idx)
+{
+ if (idx >= num_reg_opt) {
+ return NULL;
+ }
+
+ return long_opt[idx].name;
+}
+
+const char *cmd_opt_get_help_msg(int idx)
+{
+ if (idx >= num_reg_opt) {
+ return NULL;
+ }
+
+ return help_msg[idx];
+}