release/src/router/nfs-utils/utils/statd/statd.h

   1 /*
   2  * Copyright (C) 1995-1997, 1999 Jeffrey A. Uphoff
   3  * Modified by Olaf Kirch, Dec. 1996.
   4  *
   5  * NSM for Linux.
   6  */
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include <config.h>
  10 #endif
  11
  12 #include "sm_inter.h"
  13 #include "system.h"
  14 #include "log.h"
  15
  16 /*
  17  * Paths and filenames.
  18  */
  19 #if defined(NFS_STATEDIR)
  20 # define DEFAULT_DIR_BASE       NFS_STATEDIR "/"
  21 #else
  22 # define DEFAULT_DIR_BASE       "/var/lib/nfs/"
  23 #endif
  24
  25 #define DEFAULT_SM_DIR          DEFAULT_DIR_BASE "sm"
  26 #define DEFAULT_SM_BAK_DIR      DEFAULT_DIR_BASE "sm.bak"
  27 #define DEFAULT_SM_STAT_PATH    DEFAULT_DIR_BASE "state"
  28
  29 /* Added to support run-time specification of state directory path.
  30  * j_carlos_gomez@yahoo.com
  31  */
  32
  33 extern char * DIR_BASE;
  34 extern char *  SM_DIR;
  35 extern char *  SM_BAK_DIR;
  36 extern char *  SM_STAT_PATH;
  37
  38 /*
  39  * Status definitions.
  40  */
  41 #define STAT_FAIL       stat_fail
  42 #define STAT_SUCC       stat_succ
  43
  44 /*
  45  * Function prototypes.
  46  */
  47 extern void     change_state(void);
  48 extern void     my_svc_run(void);
  49 extern void     notify_hosts(void);
  50 extern void     shuffle_dirs(void);
  51 extern int      statd_get_socket(void);
  52 extern int      process_notify_list(void);
  53 extern int      process_reply(FD_SET_TYPE *);
  54 extern char *   xstrdup(const char *);
  55 extern void *   xmalloc(size_t);
  56 extern void     xunlink (char *, char *);
  57 extern void     load_state(void);
  58
  59 /*
  60  * Host status structure and macros.
  61  */
  62 stat_chge               SM_stat_chge;
  63 #define MY_NAME         SM_stat_chge.mon_name
  64 #define MY_STATE        SM_stat_chge.state
  65
  66 /*
  67  * Some timeout values.  (Timeout values are in whole seconds.)
  68  */
  69 #define CALLBACK_TIMEOUT         3 /* For client call-backs. */
  70 #define NOTIFY_TIMEOUT           5 /* For status-change notifications. */
  71 #define SELECT_TIMEOUT          10 /* Max select() timeout when work to do. */
  72 #define MAX_TRIES                5 /* Max number of tries for any host. */
  73
  74 /*
  75  * Modes of operation - Lon
  76  */
  77 extern int run_mode;
  78 #define MODE_NODAEMON 1         /* No-daemon/foreground mode. */
  79 #define MODE_LOG_STDERR 2       /* in foreground mode, log to stderr */
  80 #define MODE_NOTIFY_ONLY 4      /* Send SM_NOTIFY to everyone monitored on
  81                                    a single interface/alias */
  82 /* LH - notify_only mode would be for notifying hosts on an IP alias
  83  * that just came back up, for ex, when failing over a HA service to
  84  * another host.... */
  85 #define STATIC_HOSTNAME 8       /* Always use the hostname set by -n */
  86 #define MODE_NO_NOTIFY  16      /* Don't notify peers of a reboot */
  87 /*
  88  * Program name and version pointers -- See statd.c for the reasoning
  89  * as to why they're global.
  90  */
  91 extern char *name_p;            /* program basename */
  92 extern const char *version_p;   /* program version */
  93