1 files changed, 61 insertions, 0 deletions
diff --git a/userspace/ncrypto_masterkey.c b/userspace/ncrypto_masterkey.c
new file mode 100644
index 0000000..72aab75
--- /dev/null
+++ b/userspace/ncrypto_masterkey.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2010 Red Hat, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT, INC. AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL RED HAT, INC. OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Red Hat author: Jan Chadima <jchadima@redhat.com>
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <errno.h>
+#include <linux/ncr.h>
+#include "ncrypto.h"
+#include "ncrypto_internal.h"
+
+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;
+}
+