1 files changed, 87 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/crypto/crypto_null.c b/contrib/syslinux-4.02/gpxe/src/crypto/crypto_null.c
new file mode 100644
index 0000000..61efb34
--- /dev/null
+++ b/contrib/syslinux-4.02/gpxe/src/crypto/crypto_null.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+/**
+ * @file
+ *
+ * Null crypto algorithm
+ */
+
+#include <string.h>
+#include <gpxe/crypto.h>
+
+static void digest_null_init ( void *ctx __unused ) {
+	/* Do nothing */
+}
+
+static void digest_null_update ( void *ctx __unused, const void *src __unused,
+				 size_t len __unused ) {
+	/* Do nothing */
+}
+
+static void digest_null_final ( void *ctx __unused, void *out __unused ) {
+	/* Do nothing */
+}
+
+struct digest_algorithm digest_null = {
+	.name = "null",
+	.ctxsize = 0,
+	.blocksize = 1,
+	.digestsize = 0,
+	.init = digest_null_init,
+	.update = digest_null_update,
+	.final = digest_null_final,
+};
+
+static int cipher_null_setkey ( void *ctx __unused, const void *key __unused,
+				size_t keylen __unused ) {
+	/* Do nothing */
+	return 0;
+}
+
+static void cipher_null_setiv ( void *ctx __unused,
+				const void *iv __unused ) {
+	/* Do nothing */
+}
+
+static void cipher_null_encrypt ( void *ctx __unused, const void *src,
+				  void *dst, size_t len ) {
+	memcpy ( dst, src, len );
+}
+
+static void cipher_null_decrypt ( void *ctx __unused, const void *src,
+				  void *dst, size_t len ) {
+	memcpy ( dst, src, len );
+}
+
+struct cipher_algorithm cipher_null = {
+	.name = "null",
+	.ctxsize = 0,
+	.blocksize = 1,
+	.setkey = cipher_null_setkey,
+	.setiv = cipher_null_setiv,
+	.encrypt = cipher_null_encrypt,
+	.decrypt = cipher_null_decrypt,
+};
+
+struct pubkey_algorithm pubkey_null = {
+	.name = "null",
+	.ctxsize = 0,
+};