exec/totem.h

   1 /*
   2  * Copyright (c) 2005 MontaVista Software, Inc.
   3  * Copyright (c) 2006 Red Hat, Inc.
   4  * Copyright (c) 2006 Sun Microsystems, Inc.
   5  *
   6  * Author: Steven Dake (sdake@mvista.com)
   7  *
   8  * All rights reserved.
   9  *
  10  * This software licensed under BSD license, the text of which follows:
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions are met:
  14  *
  15  * - Redistributions of source code must retain the above copyright notice,
  16  *   this list of conditions and the following disclaimer.
  17  * - Redistributions in binary form must reproduce the above copyright notice,
  18  *   this list of conditions and the following disclaimer in the documentation
  19  *   and/or other materials provided with the distribution.
  20  * - Neither the name of the MontaVista Software, Inc. nor the names of its
  21  *   contributors may be used to endorse or promote products derived from this
  22  *   software without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  34  * THE POSSIBILITY OF SUCH DAMAGE.
  35  */
  36 #ifndef TOTEM_H_DEFINED
  37 #define TOTEM_H_DEFINED
  38 #include "totemip.h"
  39
  40 #define MESSAGE_SIZE_MAX        1024*1024 /* (1MB) */
  41 #define PROCESSOR_COUNT_MAX     384
  42 #define FRAME_SIZE_MAX          9000
  43 #define TRANSMITS_ALLOWED       16
  44 #define SEND_THREADS_MAX        16
  45 #define INTERFACE_MAX           2
  46
  47 /*
  48  * Array location of various timeouts as
  49  * specified in openais.conf.  The last enum
  50  * specifies the size of the timeouts array and
  51  * needs to remain the last item in the list.
  52  */
  53 enum {
  54         TOTEM_RETRANSMITS_BEFORE_LOSS,
  55         TOTEM_TOKEN,
  56         TOTEM_RETRANSMIT_TOKEN,
  57         TOTEM_HOLD_TOKEN,
  58         TOTEM_JOIN,
  59         TOTEM_CONSENSUS,
  60         TOTEM_MERGE,
  61         TOTEM_DOWNCHECK,
  62         TOTEM_FAIL_RECV_CONST,
  63
  64         MAX_TOTEM_TIMEOUTS      /* Last item */
  65 } totem_timeout_types;
  66
  67 struct totem_interface {
  68         struct totem_ip_address bindnet;
  69         struct totem_ip_address boundto;
  70         struct totem_ip_address mcast_addr;
  71         uint16_t ip_port;
  72 };
  73
  74 struct totem_logging_configuration {
  75         void (*log_printf) (char *, int, int, char *, ...) __attribute__((format(printf, 4, 5)));
  76         int log_level_security;
  77         int log_level_error;
  78         int log_level_warning;
  79         int log_level_notice;
  80         int log_level_debug;
  81 };
  82
  83 struct totem_config {
  84         int version;
  85
  86         /*
  87          * network
  88          */
  89         struct totem_interface *interfaces;
  90         int interface_count;
  91         unsigned int node_id;
  92
  93         /*
  94          * key information
  95          */
  96         unsigned char private_key[128];
  97
  98         int private_key_len;
  99
 100         /*
 101          * Totem configuration parameters
 102          */
 103         unsigned int token_timeout;
 104
 105         unsigned int token_retransmit_timeout;
 106
 107         unsigned int token_hold_timeout;
 108
 109         unsigned int token_retransmits_before_loss_const;
 110
 111         unsigned int join_timeout;
 112
 113         unsigned int send_join_timeout;
 114
 115         unsigned int consensus_timeout;
 116
 117         unsigned int merge_timeout;
 118
 119         unsigned int downcheck_timeout;
 120
 121         unsigned int fail_to_recv_const;
 122
 123         unsigned int seqno_unchanged_const;
 124
 125         unsigned int rrp_token_expired_timeout;
 126
 127         unsigned int rrp_problem_count_timeout;
 128
 129         unsigned int rrp_problem_count_threshold;
 130
 131         char rrp_mode[64];
 132
 133         struct totem_logging_configuration totem_logging_configuration;
 134
 135         unsigned int secauth;
 136
 137         unsigned int net_mtu;
 138
 139         unsigned int threads;
 140
 141         unsigned int heartbeat_failures_allowed;
 142
 143         unsigned int max_network_delay;
 144
 145         unsigned int window_size;
 146
 147         unsigned int max_messages;
 148
 149         char *vsf_type;
 150 };
 151
 152 enum totem_configuration_type {
 153         TOTEM_CONFIGURATION_REGULAR,
 154         TOTEM_CONFIGURATION_TRANSITIONAL
 155 };
 156
 157 enum totem_callback_token_type {
 158         TOTEM_CALLBACK_TOKEN_RECEIVED = 1,
 159         TOTEM_CALLBACK_TOKEN_SENT = 2
 160 };
 161
 162 struct memb_ring_id {
 163         struct totem_ip_address rep;
 164         unsigned long long seq;
 165 } __attribute__((packed));
 166
 167 typedef struct memb_ring_id memb_ring_id_t;
 168
 169 static inline void swab_memb_ring_id_t (memb_ring_id_t *to_swab)
 170 {
 171         swab_totem_ip_address_t (&to_swab->rep);
 172         to_swab->seq = swab64 (to_swab->seq);
 173 }
 174
 175 static inline void memb_ring_id_copy(
 176         memb_ring_id_t *out, memb_ring_id_t *in)
 177 {
 178         totemip_copy (&out->rep, &in->rep);
 179         out->seq = in->seq;
 180 }
 181
 182 static inline void memb_ring_id_copy_endian_convert(
 183         memb_ring_id_t *out, memb_ring_id_t *in)
 184 {
 185         totemip_copy_endian_convert (&out->rep, &in->rep);
 186         out->seq = swab64 (in->seq);
 187 }
 188
 189 #endif /* TOTEM_H_DEFINED */