1 files changed, 103 insertions, 0 deletions
diff --git a/nuttx/fs/nfs/xdr_subs.h b/nuttx/fs/nfs/xdr_subs.h
new file mode 100644
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+++ b/nuttx/fs/nfs/xdr_subs.h
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+/****************************************************************************
+ * fs/nfs/rpc_types.h
+ * Definitions for Sun RPC Version 2, from
+ * "RPC: Remote Procedure Call Protocol Specification" RFC1057
+ *
+ *   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) 1989, 1993
+ *    The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Rick Macklem at The University of Guelph.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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.
+ *
+ ****************************************************************************/
+
+#ifndef __FS_NFS_XDR_SUBS_H
+#define __FS_NFS_XDR_SUBS_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+/* Macros used for conversion to/from xdr representation by nfs...
+ * These use the MACHINE DEPENDENT routines ntohl, htonl
+ * As defined by "XDR: External Data Representation Standard" RFC1014
+ *
+ * To simplify the implementation, we use ntohl/htonl even on big-endian
+ * machines, and count on them being `#define'd away.  Some of these
+ * might be slightly more efficient as quad_t copies on a big-endian,
+ * but we cannot count on their alignment anyway.
+ */
+
+#define fxdr_unsigned(t, v)  ((t)ntohl((int32_t)(v)))
+#define txdr_unsigned(v)     (htonl((int32_t)(v)))
+
+#define fxdr_nfsv2time(f, t) { \
+  (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
+  if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
+    (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
+  else \
+    (t)->tv_nsec = 0; \
+}
+
+#define txdr_nfsv2time(f, t) { \
+  ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
+  if ((f)->tv_nsec != -1) \
+    ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
+  else \
+    ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
+}
+
+#define fxdr_nfsv3time(f, t) { \
+  (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
+  (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
+}
+
+#define txdr_nfsv3time(f, t) { \
+  ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
+  ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
+}
+
+#define fxdr_hyper(f)             \
+        ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) |  \
+   (u_quad_t)(ntohl(((u_int32_t *)(f))[1])))
+
+#define txdr_hyper(f, t) {            \
+  ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32));    \
+  ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff));  \
+}
+
+#endif /* __FS_NFS_XDR_SUBS_H */