fs/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 struct cld_net;
  33
  34 struct nfsd_net {
  35         struct cld_net *cld_net;
  36
  37         struct cache_detail *svc_expkey_cache;
  38         struct cache_detail *svc_export_cache;
  39
  40         struct cache_detail *idtoname_cache;
  41         struct cache_detail *nametoid_cache;
  42
  43         struct lock_manager nfsd4_manager;
  44         bool grace_ended;
  45         time_t boot_time;
  46
  47         /*
  48          * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
  49          * used in reboot/reset lease grace period processing
  50          *
  51          * conf_id_hashtbl[], and conf_name_tree hold confirmed
  52          * setclientid_confirmed info.
  53          *
  54          * unconf_str_hastbl[] and unconf_name_tree hold unconfirmed
  55          * setclientid info.
  56          */
  57         struct list_head *reclaim_str_hashtbl;
  58         int reclaim_str_hashtbl_size;
  59         struct list_head *conf_id_hashtbl;
  60         struct rb_root conf_name_tree;
  61         struct list_head *unconf_id_hashtbl;
  62         struct rb_root unconf_name_tree;
  63 };
  64
  65 extern int nfsd_net_id;
  66 #endif /* __NFSD_NETNS_H__ */