1 files changed, 123 insertions, 0 deletions
diff --git a/usr.sbin/rpc.statd/statd.h b/usr.sbin/rpc.statd/statd.h
new file mode 100644
index 0000000..63c4738
--- /dev/null
+++ b/usr.sbin/rpc.statd/statd.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 1995
+ *	A.R. Gordon (andrew.gordon@net-tel.co.uk).  All rights reserved.
+ *
+ * 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 for the FreeBSD project
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ANDREW GORDON 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 AUTHOR 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.
+ *
+ */
+
+
+
+#include <rpcsvc/sm_inter.h>
+
+/* These pieces are missing from the distributed sm_inter.x, which	*/
+/* omits the SM_NOTIFY procedure used between cooperating rpc.statd's	*/
+
+#define SM_NOTIFY ((u_long)6)
+extern void *sm_notify_1();
+ 
+struct stat_chge
+{
+  char *mon_name;
+  int state;
+};
+typedef struct stat_chge stat_chge;
+bool_t xdr_stat_chge();
+
+/* ------------------------------------------------------------------------- */
+/*
+  Data structures for recording monitored hosts
+
+  The information held by the status monitor comprises a list of hosts
+  that we have been asked to monitor, and, associated with each monitored
+  host, one or more clients to be called back if the monitored host crashes.
+
+  The list of monitored hosts must be retained over a crash, so that upon
+  re-boot we can call the SM_NOTIFY procedure in all those hosts so as to
+  cause them to start recovery processing.  On the other hand, the client
+  call-backs are not required to be preserved: they are assumed (in the
+  protocol design) to be local processes which will have crashed when
+  we did, and so are discarded on restart.
+
+  We handle this by keeping the list of monitored hosts in a file
+  (/var/statd.state) which is mmap()ed and whose format is described
+  by the typedef FileLayout.  The lists of client callbacks are chained
+  off this structure, but are held in normal memory and so will be
+  lost after a re-boot.  Hence the actual values of MonList * pointers
+  in the copy on disc have no significance, but their NULL/non-NULL
+  status indicates whether this host is actually being monitored or if it
+  is an empty slot in the file.
+*/
+
+typedef struct MonList_s
+{
+  struct MonList_s *next;	/* Next in list or NULL			*/
+  char notifyHost[SM_MAXSTRLEN + 1];	/* Host to notify		*/
+  int notifyProg;		/* RPC program number to call		*/
+  int notifyVers;		/* version number			*/
+  int notifyProc;		/* procedure number			*/
+  unsigned char notifyData[16];	/* Opaque data from caller		*/
+} MonList;
+
+typedef struct
+{
+  char hostname[SM_MAXSTRLEN + 1];	/* Name of monitored host	*/
+  int notifyReqd;		/* TRUE if we've crashed and not yet	*/
+				/* informed the monitored host		*/
+  MonList *monList;		/* List of clients to inform if we	*/
+				/* hear that the monitored host has	*/
+				/* crashed, NULL if no longer monitored	*/
+} HostInfo;
+
+
+/* Overall file layout.  						*/
+
+typedef struct
+{
+  int ourState;		/* State number as defined in statd protocol	*/
+  int noOfHosts;	/* Number of elements in hosts[]		*/
+  char reserved[248];	/* Reserved for future use			*/
+  HostInfo hosts[1];	/* vector of monitored hosts			*/
+} FileLayout;
+
+#define	HEADER_LEN (sizeof(FileLayout) - sizeof(HostInfo))
+
+/* ------------------------------------------------------------------------- */
+
+/* Global variables		*/
+
+extern FileLayout *status_info;	/* The mmap()ed status file		*/
+
+extern int debug;		/* =1 to enable diagnostics to syslog	*/
+
+/* Function prototypes		*/
+
+extern HostInfo *find_host(char * /*hostname*/, int /*create*/);
+extern void init_file(char * /*filename*/);
+extern void notify_hosts(void);
+extern void sync_file(void);