BSD 4.4 Lite Kernel Sources

1 files changed, 84 insertions, 0 deletions

diff --git a/sys/nfsserver/nfsrvcache.h b/sys/nfsserver/nfsrvcache.h
new file mode 100644
index 0000000..26da2c2
--- /dev/null
+++ b/sys/nfsserver/nfsrvcache.h
@@ -0,0 +1,84 @@
+/*
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. 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.
+ *
+ *	@(#)nfsrvcache.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Definitions for the server recent request cache
+ */
+
+#define	NFSRVCACHESIZ	256
+
+struct nfsrvcache {
+	struct	nfsrvcache *rc_forw;		/* Hash chain links */
+	struct	nfsrvcache **rc_back;		/* Hash chain links */
+	struct	nfsrvcache *rc_next;		/* Lru list */
+	struct	nfsrvcache **rc_prev;		/* Lru list */
+	u_long	rc_xid;				/* rpc id number */
+	union {
+		struct mbuf *ru_repmb;		/* Reply mbuf list OR */
+		int ru_repstat;			/* Reply status */
+	} rc_un;
+	union nethostaddr rc_haddr;		/* Host address */
+	short	rc_proc;			/* rpc proc number */
+	u_char	rc_state;		/* Current state of request */
+	u_char	rc_flag;		/* Flag bits */
+};
+
+#define	rc_reply	rc_un.ru_repmb
+#define	rc_status	rc_un.ru_repstat
+#define	rc_inetaddr	rc_haddr.had_inetaddr
+#define	rc_nam		rc_haddr.had_nam
+
+/* Cache entry states */
+#define	RC_UNUSED	0
+#define	RC_INPROG	1
+#define	RC_DONE		2
+
+/* Return values */
+#define	RC_DROPIT	0
+#define	RC_REPLY	1
+#define	RC_DOIT		2
+#define	RC_CHECKIT	3
+
+/* Flag bits */
+#define	RC_LOCKED	0x01
+#define	RC_WANTED	0x02
+#define	RC_REPSTATUS	0x04
+#define	RC_REPMBUF	0x08
+#define	RC_NQNFS	0x10
+#define	RC_INETADDR	0x20
+#define	RC_NAM		0x40