1204076Spjd/*- 2204076Spjd * Copyright (c) 2009-2010 The FreeBSD Foundation 3219351Spjd * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net> 4204076Spjd * All rights reserved. 5204076Spjd * 6204076Spjd * This software was developed by Pawel Jakub Dawidek under sponsorship from 7204076Spjd * the FreeBSD Foundation. 8204076Spjd * 9204076Spjd * Redistribution and use in source and binary forms, with or without 10204076Spjd * modification, are permitted provided that the following conditions 11204076Spjd * are met: 12204076Spjd * 1. Redistributions of source code must retain the above copyright 13204076Spjd * notice, this list of conditions and the following disclaimer. 14204076Spjd * 2. Redistributions in binary form must reproduce the above copyright 15204076Spjd * notice, this list of conditions and the following disclaimer in the 16204076Spjd * documentation and/or other materials provided with the distribution. 17204076Spjd * 18204076Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 19204076Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20204076Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21204076Spjd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 22204076Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23204076Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24204076Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25204076Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26204076Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27204076Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28204076Spjd * SUCH DAMAGE. 29204076Spjd * 30204076Spjd * $FreeBSD$ 31204076Spjd */ 32204076Spjd 33204076Spjd#ifndef _HAST_H_ 34204076Spjd#define _HAST_H_ 35204076Spjd 36204076Spjd#include <sys/queue.h> 37204076Spjd#include <sys/socket.h> 38204076Spjd 39204076Spjd#include <arpa/inet.h> 40204076Spjd 41204076Spjd#include <netinet/in.h> 42204076Spjd 43204076Spjd#include <limits.h> 44204076Spjd#include <pthread.h> 45204076Spjd#include <stdbool.h> 46204076Spjd#include <stdint.h> 47204076Spjd 48204076Spjd#include <activemap.h> 49204076Spjd 50204076Spjd#include "proto.h" 51204076Spjd 52211882Spjd/* 53211882Spjd * Version history: 54211882Spjd * 0 - initial version 55211882Spjd * 1 - HIO_KEEPALIVE added 56249236Strociny * 2 - "memsync" and "received" attributes added for memsync mode 57211882Spjd */ 58249236Strociny#define HAST_PROTO_VERSION 2 59204076Spjd 60204076Spjd#define EHAST_OK 0 61204076Spjd#define EHAST_NOENTRY 1 62204076Spjd#define EHAST_INVALID 2 63204076Spjd#define EHAST_NOMEMORY 3 64204076Spjd#define EHAST_UNIMPLEMENTED 4 65204076Spjd 66204076Spjd#define HASTCTL_CMD_UNKNOWN 0 67204076Spjd#define HASTCTL_CMD_SETROLE 1 68204076Spjd#define HASTCTL_CMD_STATUS 2 69204076Spjd 70204076Spjd#define HAST_ROLE_UNDEF 0 71204076Spjd#define HAST_ROLE_INIT 1 72204076Spjd#define HAST_ROLE_PRIMARY 2 73204076Spjd#define HAST_ROLE_SECONDARY 3 74204076Spjd 75204076Spjd#define HAST_SYNCSRC_UNDEF 0 76204076Spjd#define HAST_SYNCSRC_PRIMARY 1 77204076Spjd#define HAST_SYNCSRC_SECONDARY 2 78204076Spjd 79204076Spjd#define HIO_UNDEF 0 80204076Spjd#define HIO_READ 1 81204076Spjd#define HIO_WRITE 2 82204076Spjd#define HIO_DELETE 3 83204076Spjd#define HIO_FLUSH 4 84211882Spjd#define HIO_KEEPALIVE 5 85204076Spjd 86222108Spjd#define HAST_USER "hast" 87222108Spjd#define HAST_TIMEOUT 20 88222108Spjd#define HAST_CONFIG "/etc/hast.conf" 89222108Spjd#define HAST_CONTROL "/var/run/hastctl" 90222119Spjd#define HASTD_LISTEN_TCP4 "tcp4://0.0.0.0:8457" 91222119Spjd#define HASTD_LISTEN_TCP6 "tcp6://[::]:8457" 92222108Spjd#define HASTD_PIDFILE "/var/run/hastd.pid" 93204076Spjd 94204076Spjd/* Default extent size. */ 95204076Spjd#define HAST_EXTENTSIZE 2097152 96204076Spjd/* Default maximum number of extents that are kept dirty. */ 97204076Spjd#define HAST_KEEPDIRTY 64 98204076Spjd 99204076Spjd#define HAST_ADDRSIZE 1024 100204076Spjd#define HAST_TOKEN_SIZE 16 101204076Spjd 102219721Strociny/* Number of seconds to sleep between reconnect retries or keepalive packets. */ 103219721Strociny#define HAST_KEEPALIVE 10 104219721Strociny 105222108Spjdstruct hastd_listen { 106222108Spjd /* Address to listen on. */ 107222108Spjd char hl_addr[HAST_ADDRSIZE]; 108222108Spjd /* Protocol-specific data. */ 109222108Spjd struct proto_conn *hl_conn; 110222108Spjd TAILQ_ENTRY(hastd_listen) hl_next; 111222108Spjd}; 112222108Spjd 113204076Spjdstruct hastd_config { 114204076Spjd /* Address to communicate with hastctl(8). */ 115229509Strociny char hc_controladdr[HAST_ADDRSIZE]; 116204076Spjd /* Protocol-specific data. */ 117204076Spjd struct proto_conn *hc_controlconn; 118217969Spjd /* Incoming control connection. */ 119217969Spjd struct proto_conn *hc_controlin; 120229509Strociny /* PID file path. */ 121229509Strociny char hc_pidfile[PATH_MAX]; 122222108Spjd /* List of addresses to listen on. */ 123222108Spjd TAILQ_HEAD(, hastd_listen) hc_listen; 124204076Spjd /* List of resources. */ 125204076Spjd TAILQ_HEAD(, hast_resource) hc_resources; 126204076Spjd}; 127204076Spjd 128204076Spjd#define HAST_REPLICATION_FULLSYNC 0 129204076Spjd#define HAST_REPLICATION_MEMSYNC 1 130204076Spjd#define HAST_REPLICATION_ASYNC 2 131204076Spjd 132219354Spjd#define HAST_COMPRESSION_NONE 0 133219354Spjd#define HAST_COMPRESSION_HOLE 1 134219354Spjd#define HAST_COMPRESSION_LZF 2 135219354Spjd 136219351Spjd#define HAST_CHECKSUM_NONE 0 137219351Spjd#define HAST_CHECKSUM_CRC32 1 138219351Spjd#define HAST_CHECKSUM_SHA256 2 139219351Spjd 140260007Strocinystruct nv; 141260007Strociny 142204076Spjd/* 143204076Spjd * Structure that describes single resource. 144204076Spjd */ 145204076Spjdstruct hast_resource { 146204076Spjd /* Resource name. */ 147204076Spjd char hr_name[NAME_MAX]; 148249236Strociny /* Negotiated replication mode (HAST_REPLICATION_*). */ 149204076Spjd int hr_replication; 150249236Strociny /* Configured replication mode (HAST_REPLICATION_*). */ 151249236Strociny int hr_original_replication; 152204076Spjd /* Provider name that will appear in /dev/hast/. */ 153204076Spjd char hr_provname[NAME_MAX]; 154204076Spjd /* Synchronization extent size. */ 155204076Spjd int hr_extentsize; 156204076Spjd /* Maximum number of extents that are kept dirty. */ 157204076Spjd int hr_keepdirty; 158211886Spjd /* Path to a program to execute on various events. */ 159211886Spjd char hr_exec[PATH_MAX]; 160219354Spjd /* Compression algorithm. */ 161219354Spjd int hr_compression; 162219351Spjd /* Checksum algorithm. */ 163219351Spjd int hr_checksum; 164249236Strociny /* Protocol version. */ 165249236Strociny int hr_version; 166204076Spjd 167204076Spjd /* Path to local component. */ 168204076Spjd char hr_localpath[PATH_MAX]; 169204076Spjd /* Descriptor to access local component. */ 170204076Spjd int hr_localfd; 171204076Spjd /* Offset into local component. */ 172204076Spjd off_t hr_localoff; 173204076Spjd /* Size of usable space. */ 174204076Spjd off_t hr_datasize; 175204076Spjd /* Size of entire local provider. */ 176204076Spjd off_t hr_local_mediasize; 177204076Spjd /* Sector size of local provider. */ 178204076Spjd unsigned int hr_local_sectorsize; 179229509Strociny /* Is flushing write cache supported by the local provider? */ 180229509Strociny bool hr_localflush; 181229509Strociny /* Flush write cache on metadata updates? */ 182229509Strociny int hr_metaflush; 183204076Spjd 184204076Spjd /* Descriptor for /dev/ggctl communication. */ 185204076Spjd int hr_ggatefd; 186204076Spjd /* Unit number for ggate communication. */ 187204076Spjd int hr_ggateunit; 188204076Spjd 189204076Spjd /* Address of the remote component. */ 190204076Spjd char hr_remoteaddr[HAST_ADDRSIZE]; 191219818Spjd /* Local address to bind to for outgoing connections. */ 192219818Spjd char hr_sourceaddr[HAST_ADDRSIZE]; 193204076Spjd /* Connection for incoming data. */ 194204076Spjd struct proto_conn *hr_remotein; 195204076Spjd /* Connection for outgoing data. */ 196204076Spjd struct proto_conn *hr_remoteout; 197204076Spjd /* Token to verify both in and out connection are coming from 198204076Spjd the same node (not necessarily from the same address). */ 199204076Spjd unsigned char hr_token[HAST_TOKEN_SIZE]; 200207371Spjd /* Connection timeout. */ 201207371Spjd int hr_timeout; 202204076Spjd 203204076Spjd /* Resource unique identifier. */ 204204076Spjd uint64_t hr_resuid; 205204076Spjd /* Primary's local modification count. */ 206204076Spjd uint64_t hr_primary_localcnt; 207204076Spjd /* Primary's remote modification count. */ 208204076Spjd uint64_t hr_primary_remotecnt; 209204076Spjd /* Secondary's local modification count. */ 210204076Spjd uint64_t hr_secondary_localcnt; 211204076Spjd /* Secondary's remote modification count. */ 212204076Spjd uint64_t hr_secondary_remotecnt; 213204076Spjd /* Synchronization source. */ 214204076Spjd uint8_t hr_syncsrc; 215204076Spjd 216204076Spjd /* Resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */ 217204076Spjd int hr_role; 218204076Spjd /* Previous resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */ 219204076Spjd int hr_previous_role; 220204076Spjd /* PID of child worker process. 0 - no child. */ 221204076Spjd pid_t hr_workerpid; 222218218Spjd /* Control commands from parent to child. */ 223204076Spjd struct proto_conn *hr_ctrl; 224212038Spjd /* Events from child to parent. */ 225212038Spjd struct proto_conn *hr_event; 226218218Spjd /* Connection requests from child to parent. */ 227218218Spjd struct proto_conn *hr_conn; 228204076Spjd 229204076Spjd /* Activemap structure. */ 230204076Spjd struct activemap *hr_amp; 231256027Strociny /* Lock used to synchronize access to hr_amp. */ 232204076Spjd pthread_mutex_t hr_amp_lock; 233256027Strociny /* Lock used to synchronize access to hr_amp diskmap. */ 234256027Strociny pthread_mutex_t hr_amp_diskmap_lock; 235204076Spjd 236222228Spjd /* Number of BIO_READ requests. */ 237222228Spjd uint64_t hr_stat_read; 238222228Spjd /* Number of BIO_WRITE requests. */ 239222228Spjd uint64_t hr_stat_write; 240222228Spjd /* Number of BIO_DELETE requests. */ 241222228Spjd uint64_t hr_stat_delete; 242222228Spjd /* Number of BIO_FLUSH requests. */ 243222228Spjd uint64_t hr_stat_flush; 244222228Spjd /* Number of activemap updates. */ 245222228Spjd uint64_t hr_stat_activemap_update; 246247866Strociny /* Number of local read errors. */ 247247866Strociny uint64_t hr_stat_read_error; 248247866Strociny /* Number of local write errors. */ 249247866Strociny uint64_t hr_stat_write_error; 250247866Strociny /* Number of local delete errors. */ 251247866Strociny uint64_t hr_stat_delete_error; 252247866Strociny /* Number of flush errors. */ 253247866Strociny uint64_t hr_stat_flush_error; 254247866Strociny /* Number of activemap write errors. */ 255247866Strociny uint64_t hr_stat_activemap_write_error; 256247866Strociny /* Number of activemap flush errors. */ 257247866Strociny uint64_t hr_stat_activemap_flush_error; 258222228Spjd 259260007Strociny /* Function to output worker specific info on control status request. */ 260260007Strociny void (*output_status_aux)(struct nv *); 261260007Strociny 262204076Spjd /* Next resource. */ 263204076Spjd TAILQ_ENTRY(hast_resource) hr_next; 264204076Spjd}; 265204076Spjd 266210883Spjdstruct hastd_config *yy_config_parse(const char *config, bool exitonerror); 267204076Spjdvoid yy_config_free(struct hastd_config *config); 268204076Spjd 269204076Spjdint yyparse(void); 270204076Spjd 271204076Spjd#endif /* !_HAST_H_ */ 272