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Jeff Layton7ea34ac2012-03-21 09:52:05 -04001/*
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
Stanislav Kinsbursky52e19c02012-11-14 18:21:16 +030027/* 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
Stanislav Kinsbursky20e9e2b2012-11-14 18:21:46 +030032#define LOCKOWNER_INO_HASH_BITS 8
33#define LOCKOWNER_INO_HASH_SIZE (1 << LOCKOWNER_INO_HASH_BITS)
34
Stanislav Kinsbursky1872de02012-11-14 18:21:51 +030035#define SESSION_HASH_SIZE 512
36
Jeff Layton7ea34ac2012-03-21 09:52:05 -040037struct cld_net;
Stanislav Kinsbursky9a9c6472012-12-04 14:29:27 +030038struct nfsd4_client_tracking_ops;
Jeff Layton7ea34ac2012-03-21 09:52:05 -040039
40struct nfsd_net {
41 struct cld_net *cld_net;
Stanislav Kinsburskyb3853e02012-04-11 15:13:21 +040042
Stanislav Kinsburskye5f06f72012-04-11 15:13:28 +040043 struct cache_detail *svc_expkey_cache;
Stanislav Kinsburskyb3853e02012-04-11 15:13:21 +040044 struct cache_detail *svc_export_cache;
Stanislav Kinsburskyc2e76ef2012-04-11 17:32:51 +040045
46 struct cache_detail *idtoname_cache;
Stanislav Kinsbursky9e75a4d2012-04-11 17:32:58 +040047 struct cache_detail *nametoid_cache;
Stanislav Kinsbursky5e1533c2012-07-25 16:56:58 +040048
49 struct lock_manager nfsd4_manager;
Stanislav Kinsburskya51c84e2012-07-25 16:57:37 +040050 bool grace_ended;
Stanislav Kinsbursky2c142ba2012-07-25 16:57:45 +040051 time_t boot_time;
Stanislav Kinsbursky52e19c02012-11-14 18:21:16 +030052
53 /*
54 * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
55 * used in reboot/reset lease grace period processing
Stanislav Kinsbursky382a62e2012-11-14 18:21:26 +030056 *
57 * conf_id_hashtbl[], and conf_name_tree hold confirmed
58 * setclientid_confirmed info.
Stanislav Kinsburskya99454a2012-11-14 18:21:36 +030059 *
60 * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed
61 * setclientid info.
Stanislav Kinsbursky52e19c02012-11-14 18:21:16 +030062 */
63 struct list_head *reclaim_str_hashtbl;
64 int reclaim_str_hashtbl_size;
Stanislav Kinsbursky8daae4d2012-11-14 18:21:21 +030065 struct list_head *conf_id_hashtbl;
Stanislav Kinsbursky382a62e2012-11-14 18:21:26 +030066 struct rb_root conf_name_tree;
Stanislav Kinsbursky0a7ec372012-11-14 18:21:31 +030067 struct list_head *unconf_id_hashtbl;
Stanislav Kinsburskya99454a2012-11-14 18:21:36 +030068 struct rb_root unconf_name_tree;
Stanislav Kinsbursky9b531132012-11-14 18:21:41 +030069 struct list_head *ownerstr_hashtbl;
Stanislav Kinsbursky20e9e2b2012-11-14 18:21:46 +030070 struct list_head *lockowner_ino_hashtbl;
Stanislav Kinsbursky1872de02012-11-14 18:21:51 +030071 struct list_head *sessionid_hashtbl;
Stanislav Kinsbursky5ed58bb2012-11-14 18:21:56 +030072 /*
73 * client_lru holds client queue ordered by nfs4_client.cl_time
74 * for lease renewal.
Stanislav Kinsbursky73758fed2012-11-14 18:22:01 +030075 *
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.
Stanislav Kinsbursky5ed58bb2012-11-14 18:21:56 +030080 */
81 struct list_head client_lru;
Stanislav Kinsbursky73758fed2012-11-14 18:22:01 +030082 struct list_head close_lru;
J. Bruce Fieldse8c69d12013-03-21 15:19:33 -040083 struct list_head del_recall_lru;
Stanislav Kinsbursky09121282012-11-14 18:22:17 +030084
85 struct delayed_work laundromat_work;
Stanislav Kinsburskyc9a49622012-11-26 15:21:58 +030086
87 /* client_lock protects the client lru list and session hash table */
88 spinlock_t client_lock;
Stanislav Kinsbursky3a073362012-11-26 16:16:25 +030089
90 struct file *rec_file;
Stanislav Kinsburskyf141f792012-11-26 16:16:30 +030091 bool in_grace;
Stanislav Kinsbursky9a9c6472012-12-04 14:29:27 +030092 struct nfsd4_client_tracking_ops *client_tracking_ops;
Stanislav Kinsbursky3d733712012-11-27 14:11:44 +030093
94 time_t nfsd4_lease;
Stanislav Kinsbursky5284b442012-11-27 14:11:49 +030095 time_t nfsd4_grace;
Stanislav Kinsbursky2c2fe292012-12-06 14:23:14 +030096
97 bool nfsd_net_up;
Stanislav Kinsburskyb9c0ef82012-12-06 14:23:19 +030098
99 /*
100 * Time of server startup
101 */
102 struct timeval nfssvc_boot;
Stanislav Kinsbursky9dd98452012-12-06 14:23:24 +0300103
104 struct svc_serv *nfsd_serv;
Jeff Layton7ea34ac2012-03-21 09:52:05 -0400105};
106
Bryan Schumaker44e34da602012-11-29 11:40:39 -0500107/* Simple check to find out if a given net was properly initialized */
108#define nfsd_netns_ready(nn) ((nn)->sessionid_hashtbl)
109
Jeff Layton7ea34ac2012-03-21 09:52:05 -0400110extern int nfsd_net_id;
Jeff Layton7ea34ac2012-03-21 09:52:05 -0400111#endif /* __NFSD_NETNS_H__ */