external/gpl2/lvm2/dist/daemons/clvmd/clvmd-comms.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU General Public License v.2.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 /*
  19  * Abstraction layer for clvmd cluster communications
  20  */
  21
  22 #ifndef _CLVMD_COMMS_H
  23 #define _CLVMD_COMMS_H
  24
  25 struct local_client;
  26
  27 struct cluster_ops {
  28         void (*cluster_init_completed) (void);
  29
  30         int (*cluster_send_message) (const void *buf, int msglen,
  31                                      const char *csid,
  32                                      const char *errtext);
  33         int (*name_from_csid) (const char *csid, char *name);
  34         int (*csid_from_name) (char *csid, const char *name);
  35         int (*get_num_nodes) (void);
  36         int (*cluster_fd_callback) (struct local_client *fd, char *buf, int len,
  37                                     const char *csid,
  38                                     struct local_client **new_client);
  39         int (*get_main_cluster_fd) (void);      /* gets accept FD or cman cluster socket */
  40         int (*cluster_do_node_callback) (struct local_client *client,
  41                                          void (*callback) (struct local_client *,
  42                                                            const char *csid,
  43                                                            int node_up));
  44         int (*is_quorate) (void);
  45
  46         void (*get_our_csid) (char *csid);
  47         void (*add_up_node) (const char *csid);
  48         void (*reread_config) (void);
  49         void (*cluster_closedown) (void);
  50
  51         int (*get_cluster_name)(char *buf, int buflen);
  52
  53         int (*sync_lock) (const char *resource, int mode,
  54                           int flags, int *lockid);
  55         int (*sync_unlock) (const char *resource, int lockid);
  56
  57 };
  58
  59 #ifdef USE_GULM
  60 #  include "tcp-comms.h"
  61 struct cluster_ops *init_gulm_cluster(void);
  62 #define MAX_CSID_LEN                    GULM_MAX_CSID_LEN
  63 #define MAX_CLUSTER_MEMBER_NAME_LEN     GULM_MAX_CLUSTER_MEMBER_NAME_LEN
  64 #endif
  65
  66 #ifdef USE_CMAN
  67 #  include <netinet/in.h>
  68 #  include "libcman.h"
  69 #  define CMAN_MAX_CSID_LEN 4
  70 #  ifndef MAX_CSID_LEN
  71 #    define MAX_CSID_LEN CMAN_MAX_CSID_LEN
  72 #  endif
  73 #  undef MAX_CLUSTER_MEMBER_NAME_LEN
  74 #  define MAX_CLUSTER_MEMBER_NAME_LEN   CMAN_MAX_NODENAME_LEN
  75 #  define CMAN_MAX_CLUSTER_MESSAGE 1500
  76 #  define CLUSTER_PORT_CLVMD 11
  77 struct cluster_ops *init_cman_cluster(void);
  78 #endif
  79
  80 #ifdef USE_OPENAIS
  81 #  include <openais/saAis.h>
  82 #  include <corosync/totem/totem.h>
  83 #  define OPENAIS_CSID_LEN (sizeof(int))
  84 #  define OPENAIS_MAX_CLUSTER_MESSAGE         MESSAGE_SIZE_MAX
  85 #  define OPENAIS_MAX_CLUSTER_MEMBER_NAME_LEN SA_MAX_NAME_LENGTH
  86 #  ifndef MAX_CLUSTER_MEMBER_NAME_LEN
  87 #    define MAX_CLUSTER_MEMBER_NAME_LEN       SA_MAX_NAME_LENGTH
  88 #  endif
  89 #  ifndef CMAN_MAX_CLUSTER_MESSAGE
  90 #    define CMAN_MAX_CLUSTER_MESSAGE          MESSAGE_SIZE_MAX
  91 #  endif
  92 #  ifndef MAX_CSID_LEN
  93 #    define MAX_CSID_LEN sizeof(int)
  94 #  endif
  95 struct cluster_ops *init_openais_cluster(void);
  96 #endif
  97
  98 #ifdef USE_COROSYNC
  99 #  include <corosync/corotypes.h>
 100 #  define COROSYNC_CSID_LEN (sizeof(int))
 101 #  define COROSYNC_MAX_CLUSTER_MESSAGE         65535
 102 #  define COROSYNC_MAX_CLUSTER_MEMBER_NAME_LEN CS_MAX_NAME_LENGTH
 103 #  ifndef MAX_CLUSTER_MEMBER_NAME_LEN
 104 #    define MAX_CLUSTER_MEMBER_NAME_LEN       CS_MAX_NAME_LENGTH
 105 #  endif
 106 #  ifndef CMAN_MAX_CLUSTER_MESSAGE
 107 #    define CMAN_MAX_CLUSTER_MESSAGE          65535
 108 #  endif
 109 #  ifndef MAX_CSID_LEN
 110 #    define MAX_CSID_LEN sizeof(int)
 111 #  endif
 112 struct cluster_ops *init_corosync_cluster(void);
 113 #endif
 114
 115
 116 #endif