1/*-
2 * Copyright (c) 2009-2010 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
| 1/*-
2 * Copyright (c) 2009-2010 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Pawel Jakub Dawidek under sponsorship from
6 * the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
|
30 */
31
32#ifndef _HAST_H_
33#define _HAST_H_
34
35#include <sys/queue.h>
36#include <sys/socket.h>
37
38#include <arpa/inet.h>
39
40#include <netinet/in.h>
41
42#include <limits.h>
43#include <pthread.h>
44#include <stdbool.h>
45#include <stdint.h>
46
47#include <activemap.h>
48
49#include "proto.h"
50
51/*
52 * Version history:
53 * 0 - initial version
54 * 1 - HIO_KEEPALIVE added
55 */
56#define HAST_PROTO_VERSION 1
57
58#define EHAST_OK 0
59#define EHAST_NOENTRY 1
60#define EHAST_INVALID 2
61#define EHAST_NOMEMORY 3
62#define EHAST_UNIMPLEMENTED 4
63
64#define HASTCTL_CMD_UNKNOWN 0
65#define HASTCTL_CMD_SETROLE 1
66#define HASTCTL_CMD_STATUS 2
67
68#define HAST_ROLE_UNDEF 0
69#define HAST_ROLE_INIT 1
70#define HAST_ROLE_PRIMARY 2
71#define HAST_ROLE_SECONDARY 3
72
73#define HAST_SYNCSRC_UNDEF 0
74#define HAST_SYNCSRC_PRIMARY 1
75#define HAST_SYNCSRC_SECONDARY 2
76
77#define HIO_UNDEF 0
78#define HIO_READ 1
79#define HIO_WRITE 2
80#define HIO_DELETE 3
81#define HIO_FLUSH 4
82#define HIO_KEEPALIVE 5
83
84#define HAST_TIMEOUT 5
85#define HAST_CONFIG "/etc/hast.conf"
86#define HAST_CONTROL "/var/run/hastctl"
87#define HASTD_PORT 8457
88#define HASTD_LISTEN "tcp4://0.0.0.0:8457"
89#define HASTD_PIDFILE "/var/run/hastd.pid"
90
91/* Default extent size. */
92#define HAST_EXTENTSIZE 2097152
93/* Default maximum number of extents that are kept dirty. */
94#define HAST_KEEPDIRTY 64
95
96#define HAST_ADDRSIZE 1024
97#define HAST_TOKEN_SIZE 16
98
99struct hastd_config {
100 /* Address to communicate with hastctl(8). */
101 char hc_controladdr[HAST_ADDRSIZE];
102 /* Protocol-specific data. */
103 struct proto_conn *hc_controlconn;
104 /* Address to listen on. */
105 char hc_listenaddr[HAST_ADDRSIZE];
106 /* Protocol-specific data. */
107 struct proto_conn *hc_listenconn;
108 /* List of resources. */
109 TAILQ_HEAD(, hast_resource) hc_resources;
110};
111
112#define HAST_REPLICATION_FULLSYNC 0
113#define HAST_REPLICATION_MEMSYNC 1
114#define HAST_REPLICATION_ASYNC 2
115
116/*
117 * Structure that describes single resource.
118 */
119struct hast_resource {
120 /* Resource name. */
121 char hr_name[NAME_MAX];
122 /* Replication mode (HAST_REPLICATION_*). */
123 int hr_replication;
124 /* Provider name that will appear in /dev/hast/. */
125 char hr_provname[NAME_MAX];
126 /* Synchronization extent size. */
127 int hr_extentsize;
128 /* Maximum number of extents that are kept dirty. */
129 int hr_keepdirty;
| 30 */
31
32#ifndef _HAST_H_
33#define _HAST_H_
34
35#include <sys/queue.h>
36#include <sys/socket.h>
37
38#include <arpa/inet.h>
39
40#include <netinet/in.h>
41
42#include <limits.h>
43#include <pthread.h>
44#include <stdbool.h>
45#include <stdint.h>
46
47#include <activemap.h>
48
49#include "proto.h"
50
51/*
52 * Version history:
53 * 0 - initial version
54 * 1 - HIO_KEEPALIVE added
55 */
56#define HAST_PROTO_VERSION 1
57
58#define EHAST_OK 0
59#define EHAST_NOENTRY 1
60#define EHAST_INVALID 2
61#define EHAST_NOMEMORY 3
62#define EHAST_UNIMPLEMENTED 4
63
64#define HASTCTL_CMD_UNKNOWN 0
65#define HASTCTL_CMD_SETROLE 1
66#define HASTCTL_CMD_STATUS 2
67
68#define HAST_ROLE_UNDEF 0
69#define HAST_ROLE_INIT 1
70#define HAST_ROLE_PRIMARY 2
71#define HAST_ROLE_SECONDARY 3
72
73#define HAST_SYNCSRC_UNDEF 0
74#define HAST_SYNCSRC_PRIMARY 1
75#define HAST_SYNCSRC_SECONDARY 2
76
77#define HIO_UNDEF 0
78#define HIO_READ 1
79#define HIO_WRITE 2
80#define HIO_DELETE 3
81#define HIO_FLUSH 4
82#define HIO_KEEPALIVE 5
83
84#define HAST_TIMEOUT 5
85#define HAST_CONFIG "/etc/hast.conf"
86#define HAST_CONTROL "/var/run/hastctl"
87#define HASTD_PORT 8457
88#define HASTD_LISTEN "tcp4://0.0.0.0:8457"
89#define HASTD_PIDFILE "/var/run/hastd.pid"
90
91/* Default extent size. */
92#define HAST_EXTENTSIZE 2097152
93/* Default maximum number of extents that are kept dirty. */
94#define HAST_KEEPDIRTY 64
95
96#define HAST_ADDRSIZE 1024
97#define HAST_TOKEN_SIZE 16
98
99struct hastd_config {
100 /* Address to communicate with hastctl(8). */
101 char hc_controladdr[HAST_ADDRSIZE];
102 /* Protocol-specific data. */
103 struct proto_conn *hc_controlconn;
104 /* Address to listen on. */
105 char hc_listenaddr[HAST_ADDRSIZE];
106 /* Protocol-specific data. */
107 struct proto_conn *hc_listenconn;
108 /* List of resources. */
109 TAILQ_HEAD(, hast_resource) hc_resources;
110};
111
112#define HAST_REPLICATION_FULLSYNC 0
113#define HAST_REPLICATION_MEMSYNC 1
114#define HAST_REPLICATION_ASYNC 2
115
116/*
117 * Structure that describes single resource.
118 */
119struct hast_resource {
120 /* Resource name. */
121 char hr_name[NAME_MAX];
122 /* Replication mode (HAST_REPLICATION_*). */
123 int hr_replication;
124 /* Provider name that will appear in /dev/hast/. */
125 char hr_provname[NAME_MAX];
126 /* Synchronization extent size. */
127 int hr_extentsize;
128 /* Maximum number of extents that are kept dirty. */
129 int hr_keepdirty;
|
130
131 /* Path to local component. */
132 char hr_localpath[PATH_MAX];
133 /* Descriptor to access local component. */
134 int hr_localfd;
135 /* Offset into local component. */
136 off_t hr_localoff;
137 /* Size of usable space. */
138 off_t hr_datasize;
139 /* Size of entire local provider. */
140 off_t hr_local_mediasize;
141 /* Sector size of local provider. */
142 unsigned int hr_local_sectorsize;
143
144 /* Descriptor for /dev/ggctl communication. */
145 int hr_ggatefd;
146 /* Unit number for ggate communication. */
147 int hr_ggateunit;
148
149 /* Address of the remote component. */
150 char hr_remoteaddr[HAST_ADDRSIZE];
151 /* Connection for incoming data. */
152 struct proto_conn *hr_remotein;
153 /* Connection for outgoing data. */
154 struct proto_conn *hr_remoteout;
155 /* Token to verify both in and out connection are coming from
156 the same node (not necessarily from the same address). */
157 unsigned char hr_token[HAST_TOKEN_SIZE];
158 /* Connection timeout. */
159 int hr_timeout;
160
161 /* Resource unique identifier. */
162 uint64_t hr_resuid;
163 /* Primary's local modification count. */
164 uint64_t hr_primary_localcnt;
165 /* Primary's remote modification count. */
166 uint64_t hr_primary_remotecnt;
167 /* Secondary's local modification count. */
168 uint64_t hr_secondary_localcnt;
169 /* Secondary's remote modification count. */
170 uint64_t hr_secondary_remotecnt;
171 /* Synchronization source. */
172 uint8_t hr_syncsrc;
173
174 /* Resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */
175 int hr_role;
176 /* Previous resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */
177 int hr_previous_role;
178 /* PID of child worker process. 0 - no child. */
179 pid_t hr_workerpid;
180 /* Control connection between parent and child. */
181 struct proto_conn *hr_ctrl;
182
183 /* Activemap structure. */
184 struct activemap *hr_amp;
185 /* Locked used to synchronize access to hr_amp. */
186 pthread_mutex_t hr_amp_lock;
187
188 /* Next resource. */
189 TAILQ_ENTRY(hast_resource) hr_next;
190};
191
192struct hastd_config *yy_config_parse(const char *config, bool exitonerror);
193void yy_config_free(struct hastd_config *config);
194
195void yyerror(const char *);
196int yylex(void);
197int yyparse(void);
198
199#endif /* !_HAST_H_ */
| 132
133 /* Path to local component. */
134 char hr_localpath[PATH_MAX];
135 /* Descriptor to access local component. */
136 int hr_localfd;
137 /* Offset into local component. */
138 off_t hr_localoff;
139 /* Size of usable space. */
140 off_t hr_datasize;
141 /* Size of entire local provider. */
142 off_t hr_local_mediasize;
143 /* Sector size of local provider. */
144 unsigned int hr_local_sectorsize;
145
146 /* Descriptor for /dev/ggctl communication. */
147 int hr_ggatefd;
148 /* Unit number for ggate communication. */
149 int hr_ggateunit;
150
151 /* Address of the remote component. */
152 char hr_remoteaddr[HAST_ADDRSIZE];
153 /* Connection for incoming data. */
154 struct proto_conn *hr_remotein;
155 /* Connection for outgoing data. */
156 struct proto_conn *hr_remoteout;
157 /* Token to verify both in and out connection are coming from
158 the same node (not necessarily from the same address). */
159 unsigned char hr_token[HAST_TOKEN_SIZE];
160 /* Connection timeout. */
161 int hr_timeout;
162
163 /* Resource unique identifier. */
164 uint64_t hr_resuid;
165 /* Primary's local modification count. */
166 uint64_t hr_primary_localcnt;
167 /* Primary's remote modification count. */
168 uint64_t hr_primary_remotecnt;
169 /* Secondary's local modification count. */
170 uint64_t hr_secondary_localcnt;
171 /* Secondary's remote modification count. */
172 uint64_t hr_secondary_remotecnt;
173 /* Synchronization source. */
174 uint8_t hr_syncsrc;
175
176 /* Resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */
177 int hr_role;
178 /* Previous resource role: HAST_ROLE_{INIT,PRIMARY,SECONDARY}. */
179 int hr_previous_role;
180 /* PID of child worker process. 0 - no child. */
181 pid_t hr_workerpid;
182 /* Control connection between parent and child. */
183 struct proto_conn *hr_ctrl;
184
185 /* Activemap structure. */
186 struct activemap *hr_amp;
187 /* Locked used to synchronize access to hr_amp. */
188 pthread_mutex_t hr_amp_lock;
189
190 /* Next resource. */
191 TAILQ_ENTRY(hast_resource) hr_next;
192};
193
194struct hastd_config *yy_config_parse(const char *config, bool exitonerror);
195void yy_config_free(struct hastd_config *config);
196
197void yyerror(const char *);
198int yylex(void);
199int yyparse(void);
200
201#endif /* !_HAST_H_ */
|