summaryrefslogtreecommitdiffstats
path: root/xlators/nfs/server/src/mount3.h
blob: b9721fc03b8c1b0ff83030a0fea3ddb05a3b687b (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
/*
  Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.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 _MOUNT3_H_
#define _MOUNT3_H_

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

#include "rpcsvc.h"
#include "dict.h"
#include "xlator.h"
#include "iobuf.h"
#include "nfs.h"
#include "list.h"
#include "xdr-nfs3.h"
#include "locking.h"
#include "nfs3-fh.h"
#include "uuid.h"

/* Registered with portmap */
#define GF_MOUNTV3_PORT         38465
#define GF_MOUNTV3_IOB          (2 * GF_UNIT_KB)
#define GF_MOUNTV3_IOBPOOL      (GF_MOUNTV3_IOB * 50)

#define GF_MOUNTV1_PORT         38466
#define GF_MNT                  GF_NFS"-mount"

extern rpcsvc_program_t *
mnt3svc_init (xlator_t *nfsx);

extern rpcsvc_program_t *
mnt1svc_init (xlator_t *nfsx);

extern int
mount_init_state (xlator_t *nfsx);

/* Data structure used to store the list of mounts points currently
 * in use by NFS clients.
 */
struct mountentry {
        /* Links to mount3_state->mountlist.  */
        struct list_head        mlist;

        /* The export name */
        char                    exname[MNTPATHLEN];
        char                    hostname[MNTPATHLEN];
};

#define MNT3_EXPTYPE_VOLUME     1
#define MNT3_EXPTYPE_DIR        2

/* Structure to hold export-dir AUTH parameter */
struct host_auth_spec {
        char                    *host_addr;    /* Allowed IP or host name */
        int                     routeprefix;   /* Routing prefix */
        struct host_auth_spec   *next;         /* Pointer to next AUTH struct */
};

struct mnt3_export {
        struct list_head        explist;

        /* The string that may contain either the volume name if the full volume
         * is exported or the subdirectory in the volume.
         */
        char                    *expname;
        /*
         * IP address, hostname or subnets who are allowed to connect to expname
         * subvolume or subdirectory
         */
        struct host_auth_spec*  hostspec;
        xlator_t                *vol;
        int                     exptype;

        /* Extracted from nfs volume options if nfs.dynamicvolumes is on.
         */
        uuid_t                  volumeid;
};

struct mount3_state {
        xlator_t                *nfsx;

        /* The buffers for all network IO are got from this pool. */
        struct iobuf_pool       *iobpool;

        /* List of exports, can be volumes or directories in those volumes. */
        struct list_head        exportlist;

        /* List of current mount points over all the exports from this
         * server.
         */
        struct list_head        mountlist;

        /* Used to protect the mountlist. */
        gf_lock_t               mountlock;

        /* Set to 0 if exporting full volumes is disabled. On by default. */
        int                     export_volumes;
        int                     export_dirs;
};

#define gf_mnt3_export_dirs(mst)        ((mst)->export_dirs)

struct mount3_resolve_state {
        struct mnt3_export      *exp;
        struct mount3_state     *mstate;
        rpcsvc_request_t        *req;

        char                    remainingdir[MNTPATHLEN];
        loc_t                   resolveloc;
        struct nfs3_fh          parentfh;
};

typedef struct mount3_resolve_state mnt3_resolve_t;

#endif