Add the beginnings of NFS client support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4443 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 69 insertions, 0 deletions

diff --git a/nuttx/fs/nfs/rpc_idgen.h b/nuttx/fs/nfs/rpc_idgen.h
new file mode 100644
index 000000000..42babc4d7
--- /dev/null
+++ b/nuttx/fs/nfs/rpc_idgen.h
@@ -0,0 +1,69 @@
+
+/*    $OpenBSD: idgen.h,v 1.2 2008/06/25 00:55:53 djm Exp $    */
+
+/*
+ */
+
+/****************************************************************************
+ * fs/nfs/rpc_idgen.h
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2012 Jose Pablo Rojas Vargas. All rights reserved.
+ *   Author: Jose Pablo Rojas Vargas <jrojas@nx-engineering.com>
+ *
+ * Leveraged from OpenBSD:
+ *
+ * Copyright (c) 2008 Damien Miller <djm@mindrot.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ ****************************************************************************/
+
+#ifndef __FS_NFS_RPC_IDGEN_H
+#define __FS_NFS_RPC_IDGEN_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define IDGEN32_ROUNDS        31
+#define IDGEN32_KEYLEN        32
+#define IDGEN32_REKEY_LIMIT   0x60000000
+#define IDGEN32_REKEY_TIME    600
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct idgen32_ctx
+{
+  uint32_t id_counter;
+  uint32_t id_offset;
+  uint32_t id_hibit;
+  uint8_t id_key[IDGEN32_KEYLEN];
+  time_t id_rekey_time;
+};
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+void idgen32_init(struct idgen32_ctx *);
+uint32_t idgen32(struct idgen32_ctx *);
+
+#endif /* __FS_NFS_RPC_IDGEN_H */
+