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121 lines
3.5 KiB
121 lines
3.5 KiB
/* |
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* per net namespace data structures for nfsd |
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* |
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* Copyright (C) 2012, Jeff Layton <jlayton@redhat.com> |
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* |
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* This program is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License as published by the Free |
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* Software Foundation; either version 2 of the License, or (at your option) |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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* more details. |
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* |
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* You should have received a copy of the GNU General Public License along with |
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* this program; if not, write to the Free Software Foundation, Inc., 51 |
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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*/ |
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#ifndef __NFSD_NETNS_H__ |
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#define __NFSD_NETNS_H__ |
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#include <net/net_namespace.h> |
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#include <net/netns/generic.h> |
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/* Hash tables for nfs4_clientid state */ |
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#define CLIENT_HASH_BITS 4 |
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#define CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS) |
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#define CLIENT_HASH_MASK (CLIENT_HASH_SIZE - 1) |
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#define SESSION_HASH_SIZE 512 |
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struct cld_net; |
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struct nfsd4_client_tracking_ops; |
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/* |
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* Represents a nfsd "container". With respect to nfsv4 state tracking, the |
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* fields of interest are the *_id_hashtbls and the *_name_tree. These track |
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* the nfs4_client objects by either short or long form clientid. |
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* |
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* Each nfsd_net runs a nfs4_laundromat workqueue job when necessary to clean |
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* up expired clients and delegations within the container. |
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*/ |
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struct nfsd_net { |
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struct cld_net *cld_net; |
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struct cache_detail *svc_expkey_cache; |
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struct cache_detail *svc_export_cache; |
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struct cache_detail *idtoname_cache; |
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struct cache_detail *nametoid_cache; |
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struct lock_manager nfsd4_manager; |
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bool grace_ended; |
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time_t boot_time; |
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/* |
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* reclaim_str_hashtbl[] holds known client info from previous reset/reboot |
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* used in reboot/reset lease grace period processing |
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* |
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* conf_id_hashtbl[], and conf_name_tree hold confirmed |
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* setclientid_confirmed info. |
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* |
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* unconf_str_hastbl[] and unconf_name_tree hold unconfirmed |
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* setclientid info. |
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*/ |
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struct list_head *reclaim_str_hashtbl; |
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int reclaim_str_hashtbl_size; |
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struct list_head *conf_id_hashtbl; |
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struct rb_root conf_name_tree; |
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struct list_head *unconf_id_hashtbl; |
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struct rb_root unconf_name_tree; |
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struct list_head *sessionid_hashtbl; |
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/* |
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* client_lru holds client queue ordered by nfs4_client.cl_time |
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* for lease renewal. |
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* |
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* close_lru holds (open) stateowner queue ordered by nfs4_stateowner.so_time |
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* for last close replay. |
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* |
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* All of the above fields are protected by the client_mutex. |
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*/ |
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struct list_head client_lru; |
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struct list_head close_lru; |
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struct list_head del_recall_lru; |
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struct delayed_work laundromat_work; |
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/* client_lock protects the client lru list and session hash table */ |
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spinlock_t client_lock; |
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struct file *rec_file; |
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bool in_grace; |
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struct nfsd4_client_tracking_ops *client_tracking_ops; |
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time_t nfsd4_lease; |
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time_t nfsd4_grace; |
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bool nfsd_net_up; |
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bool lockd_up; |
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/* Time of server startup */ |
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struct timeval nfssvc_boot; |
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/* |
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* Max number of connections this nfsd container will allow. Defaults |
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* to '0' which is means that it bases this on the number of threads. |
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*/ |
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unsigned int max_connections; |
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u32 clientid_counter; |
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struct svc_serv *nfsd_serv; |
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}; |
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/* Simple check to find out if a given net was properly initialized */ |
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#define nfsd_netns_ready(nn) ((nn)->sessionid_hashtbl) |
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extern int nfsd_net_id; |
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#endif /* __NFSD_NETNS_H__ */
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