summaryrefslogtreecommitdiffstats
path: root/libglusterfs/src/glusterfs.h
blob: 7aadae21af52888a34195fdfc29e25ab81731937 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
   Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
   This file is part of GlusterFS.

   GlusterFS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published
   by the Free Software Foundation; either version 3 of the License,
   or (at your option) any later version.

   GlusterFS is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see
   <http://www.gnu.org/licenses/>.
*/

#ifndef _GLUSTERFS_H
#define _GLUSTERFS_H

#ifndef _CONFIG_H
#define _CONFIG_H
#include "config.h"
#endif

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <netdb.h>
#include <errno.h>
#include <dirent.h>
#include <unistd.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include <sys/poll.h>
#include <pthread.h>

#include "list.h"
#include "logging.h"

#define GF_YES 1
#define GF_NO  0

#ifndef O_LARGEFILE
/* savannah bug #20053, patch for compiling on darwin */
#define O_LARGEFILE 0
#endif

#ifndef O_DIRECT
/* savannah bug #20050, #20052 */
#define O_DIRECT 0 /* From asm/fcntl.h */
#endif

#ifndef O_DIRECTORY
/* FreeBSD does not need O_DIRECTORY */
#define O_DIRECTORY 0
#endif

#define ZR_FILE_CONTENT_STR     "glusterfs.file."
#define ZR_FILE_CONTENT_STRLEN 15

#define GLUSTERFS_OPEN_FD_COUNT "glusterfs.open-fd-count"

#define ZR_FILE_CONTENT_REQUEST(key) (!strncmp(key, ZR_FILE_CONTENT_STR, \
					       ZR_FILE_CONTENT_STRLEN))

/* TODO: Should we use PATH-MAX? On some systems it may save space */
#define ZR_PATH_MAX 4096    

/* This is used as the maximum permitted filename length over FS. 
 * If the backend FS supports higher than this, it should be changed. 
 */
#define ZR_FILENAME_MAX 256 


/* NOTE: add members ONLY at the end (just before _MAXVALUE) */
typedef enum {
        GF_FOP_STAT,       /* 0 */
        GF_FOP_READLINK,   /* 1 */
        GF_FOP_MKNOD,      /* 2 */
        GF_FOP_MKDIR,
        GF_FOP_UNLINK,
        GF_FOP_RMDIR,      /* 5 */
        GF_FOP_SYMLINK,
        GF_FOP_RENAME,
        GF_FOP_LINK,
        GF_FOP_CHMOD,
        GF_FOP_CHOWN,      /* 10 */
        GF_FOP_TRUNCATE,
        GF_FOP_OPEN,
        GF_FOP_READ,
        GF_FOP_WRITE,
        GF_FOP_STATFS,     /* 15 */
        GF_FOP_FLUSH,
        GF_FOP_FSYNC,
        GF_FOP_SETXATTR,
        GF_FOP_GETXATTR,   
        GF_FOP_REMOVEXATTR,/* 20 */
        GF_FOP_OPENDIR,
        GF_FOP_GETDENTS,
        GF_FOP_FSYNCDIR,   
        GF_FOP_ACCESS,
        GF_FOP_CREATE,     /* 25 */
        GF_FOP_FTRUNCATE,
        GF_FOP_FSTAT,
        GF_FOP_LK,         
        GF_FOP_UTIMENS,
        GF_FOP_FCHMOD,     /* 30 */
        GF_FOP_FCHOWN,
        GF_FOP_LOOKUP,
        GF_FOP_SETDENTS,
        GF_FOP_READDIR,    
        GF_FOP_INODELK,   /* 35 */
        GF_FOP_FINODELK, 
	GF_FOP_ENTRYLK,  
	GF_FOP_FENTRYLK,  
        GF_FOP_CHECKSUM,      
        GF_FOP_XATTROP,  /* 40 */
        GF_FOP_FXATTROP,
        GF_FOP_LOCK_NOTIFY,
        GF_FOP_LOCK_FNOTIFY,
        GF_FOP_MAXVALUE,  
} glusterfs_fop_t;

/* NOTE: add members ONLY at the end (just before _MAXVALUE) */
typedef enum {
        GF_MOP_SETVOLUME, /* 0 */
        GF_MOP_GETVOLUME, /* 1 */
        GF_MOP_STATS,
        GF_MOP_SETSPEC,
        GF_MOP_GETSPEC,
	GF_MOP_PING,
        GF_MOP_MAXVALUE   /* 5 */
} glusterfs_mop_t;

typedef enum {
	GF_CBK_FORGET,      /* 0 */
	GF_CBK_RELEASE,     /* 1 */
	GF_CBK_RELEASEDIR,  /* 2 */
	GF_CBK_MAXVALUE     /* 3 */
} glusterfs_cbk_t;

typedef enum {
        GF_OP_TYPE_FOP_REQUEST = 1,
        GF_OP_TYPE_MOP_REQUEST,
	GF_OP_TYPE_CBK_REQUEST,
        GF_OP_TYPE_FOP_REPLY,
        GF_OP_TYPE_MOP_REPLY,
	GF_OP_TYPE_CBK_REPLY
} glusterfs_op_type_t;

/* NOTE: all the miscellaneous flags used by GlusterFS should be listed here */
typedef enum {
        GF_LK_GETLK = 0,
        GF_LK_SETLK,
        GF_LK_SETLKW,
} glusterfs_lk_cmds_t;

typedef enum {
        GF_LK_F_RDLCK = 0,
        GF_LK_F_WRLCK,
        GF_LK_F_UNLCK
} glusterfs_lk_types_t;

typedef enum {
        GF_LOCK_POSIX, 
        GF_LOCK_INTERNAL
} gf_lk_domain_t;

typedef enum {
	ENTRYLK_LOCK,
	ENTRYLK_UNLOCK,
	ENTRYLK_LOCK_NB
} entrylk_cmd;

typedef enum {
	ENTRYLK_RDLCK,
	ENTRYLK_WRLCK
} entrylk_type;

typedef enum {
        GF_GET_ALL = 1,
        GF_GET_DIR_ONLY,
        GF_GET_SYMLINK_ONLY,
        GF_GET_REGULAR_FILES_ONLY,
} glusterfs_getdents_flags_t;

typedef enum {
	GF_XATTROP_ADD_ARRAY,
} gf_xattrop_flags_t;

#define GF_SET_IF_NOT_PRESENT 0x1 /* default behaviour */
#define GF_SET_OVERWRITE      0x2 /* Overwrite with the buf given */
#define GF_SET_DIR_ONLY       0x4
#define GF_SET_EPOCH_TIME     0x8 /* used by afr dir lookup selfheal */


struct _xlator_cmdline_option {
	struct list_head cmd_args;
	char *volume;
	char *key;
	char *value;
};
typedef struct _xlator_cmdline_option xlator_cmdline_option_t;

struct _cmd_args {
	/* basic options */
	char            *volfile_server;
	char            *volume_file;
	gf_loglevel_t    log_level;
	char            *log_file;
	/* advanced options */
	uint32_t         volfile_server_port;
	char            *volfile_server_transport;
	char            *pid_file;
	int              no_daemon_mode;
	char            *run_id;
	int              debug_mode;
	struct list_head xlator_options;  /* list of xlator_option_t */

	/* fuse options */
	int              fuse_direct_io_mode_flag;
	double           fuse_entry_timeout;
	double           fuse_attribute_timeout;
	char            *volume_name;
	int              non_local;       /* Used only by darwin os, 
					     used for '-o local' option */
	char            *icon_name;       /* This string will appear as 
					     Desktop icon name when mounted
					     on darwin */
	int              fuse_nodev;
	int              fuse_nosuid;

	/* key args */
	char            *mount_point;
	char            *volfile_id;
};
typedef struct _cmd_args cmd_args_t;

struct _glusterfs_ctx {
	cmd_args_t         cmd_args;
	char              *process_uuid;
	FILE              *specfp;
	FILE              *pidfp;
	char               fin;
	void              *timer;
	void              *ib;
	void              *pool;
	void              *graph;
	void              *top; /* either fuse or server protocol */
	void              *event_pool;
	pthread_mutex_t    lock;
	int                xl_count;
};

typedef struct _glusterfs_ctx glusterfs_ctx_t;

typedef enum {
  GF_EVENT_PARENT_UP = 1,
  GF_EVENT_POLLIN,
  GF_EVENT_POLLOUT,
  GF_EVENT_POLLERR,
  GF_EVENT_CHILD_UP,
  GF_EVENT_CHILD_DOWN,
  GF_EVENT_CHILD_CONNECTING,
  GF_EVENT_TRANSPORT_CLEANUP,
  GF_EVENT_TRANSPORT_CONNECTED,
} glusterfs_event_t;

#define GF_MUST_CHECK __attribute__((warn_unused_result))

#endif /* _GLUSTERFS_H */