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1/*
2 * per net namespace data structures for nfsd
3 *
4 * Copyright (C) 2012, Jeff Layton <jlayton@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
9 * any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc., 51
18 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21#ifndef __NFSD_NETNS_H__
22#define __NFSD_NETNS_H__
23
24#include <net/net_namespace.h>
25#include <net/netns/generic.h>
26
27struct cld_net;
28
29struct nfsd_net {
30 struct cld_net *cld_net;
31
32 struct cache_detail *svc_expkey_cache;
33 struct cache_detail *svc_export_cache;
34
35 struct cache_detail *idtoname_cache;
36 struct cache_detail *nametoid_cache;
37};
38
39extern int nfsd_net_id;
40#endif /* __NFSD_NETNS_H__ */
1/*
2 * per net namespace data structures for nfsd
3 *
4 * Copyright (C) 2012, Jeff Layton <jlayton@redhat.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
9 * any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc., 51
18 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21#ifndef __NFSD_NETNS_H__
22#define __NFSD_NETNS_H__
23
24#include <net/net_namespace.h>
25#include <net/netns/generic.h>
26
27/* Hash tables for nfs4_clientid state */
28#define CLIENT_HASH_BITS 4
29#define CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS)
30#define CLIENT_HASH_MASK (CLIENT_HASH_SIZE - 1)
31
32#define LOCKOWNER_INO_HASH_BITS 8
33#define LOCKOWNER_INO_HASH_SIZE (1 << LOCKOWNER_INO_HASH_BITS)
34
35#define SESSION_HASH_SIZE 512
36
37struct cld_net;
38struct nfsd4_client_tracking_ops;
39
40struct nfsd_net {
41 struct cld_net *cld_net;
42
43 struct cache_detail *svc_expkey_cache;
44 struct cache_detail *svc_export_cache;
45
46 struct cache_detail *idtoname_cache;
47 struct cache_detail *nametoid_cache;
48
49 struct lock_manager nfsd4_manager;
50 bool grace_ended;
51 time_t boot_time;
52
53 /*
54 * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
55 * used in reboot/reset lease grace period processing
56 *
57 * conf_id_hashtbl[], and conf_name_tree hold confirmed
58 * setclientid_confirmed info.
59 *
60 * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed
61 * setclientid info.
62 */
63 struct list_head *reclaim_str_hashtbl;
64 int reclaim_str_hashtbl_size;
65 struct list_head *conf_id_hashtbl;
66 struct rb_root conf_name_tree;
67 struct list_head *unconf_id_hashtbl;
68 struct rb_root unconf_name_tree;
69 struct list_head *ownerstr_hashtbl;
70 struct list_head *lockowner_ino_hashtbl;
71 struct list_head *sessionid_hashtbl;
72 /*
73 * client_lru holds client queue ordered by nfs4_client.cl_time
74 * for lease renewal.
75 *
76 * close_lru holds (open) stateowner queue ordered by nfs4_stateowner.so_time
77 * for last close replay.
78 *
79 * All of the above fields are protected by the client_mutex.
80 */
81 struct list_head client_lru;
82 struct list_head close_lru;
83 struct list_head del_recall_lru;
84
85 struct delayed_work laundromat_work;
86
87 /* client_lock protects the client lru list and session hash table */
88 spinlock_t client_lock;
89
90 struct file *rec_file;
91 bool in_grace;
92 struct nfsd4_client_tracking_ops *client_tracking_ops;
93
94 time_t nfsd4_lease;
95 time_t nfsd4_grace;
96
97 bool nfsd_net_up;
98 bool lockd_up;
99
100 /*
101 * Time of server startup
102 */
103 struct timeval nfssvc_boot;
104
105 struct svc_serv *nfsd_serv;
106};
107
108/* Simple check to find out if a given net was properly initialized */
109#define nfsd_netns_ready(nn) ((nn)->sessionid_hashtbl)
110
111extern int nfsd_net_id;
112#endif /* __NFSD_NETNS_H__ */