Initial userspace library version

1 files changed, 35 insertions, 0 deletions

diff --git a/userspace/ncrypto_masterkey.c b/userspace/ncrypto_masterkey.c
new file mode 100644
index 0000000..a5c55c3
--- /dev/null
+++ b/userspace/ncrypto_masterkey.c
@@ -0,0 +1,35 @@
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <errno.h>
+#include "../ncr.h"
+#include "ncrypto.h"
+
+extern int __ncr_file_descriptor;
+
+int
+ncr_masterkey_set(void *key, size_t key_size)
+{
+	struct ncr_master_key_st io;
+	memset(&io, 0, sizeof(io));
+
+	if (!key || !key_size) {
+		errno = EINVAL;
+		return -1;
+	}
+
+        io.key = key = key;
+        io.key_size = key_size;
+
+	if (__ncr_file_descriptor < 0) {
+		errno = EBADF;
+		return -1;
+	}
+
+	if (ioctl(__ncr_file_descriptor, NCRIO_MASTER_KEY_SET, &io) < 0)
+		return -1;
+
+	return 0;
+}
+