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/*
Copyright (c) 2010-2011 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef __NFS_H__
#define __NFS_H__
#include "rpcsvc.h"
#include "dict.h"
#include "xlator.h"
#include "lkowner.h"
#include "gidcache.h"
#define GF_NFS "nfs"
#define GF_NFS_CONCURRENT_OPS_MULT 15
#define GF_NFS_INODE_LRU_MULT 6000
#define GF_RPC_MIN_THREADS 1
#define GF_RPC_MAX_THREADS 16
#define GF_NFS_DEFAULT_MEMFACTOR 15
#define GF_NFS_MIN_MEMFACTOR 1
#define GF_NFS_MAX_MEMFACTOR 30
#define GF_NFS_DVM_ON 1
#define GF_NFS_DVM_OFF 0
/* Disable using the exports file by default */
#define GF_NFS_DEFAULT_EXPORT_AUTH 0
#define GF_NFS_DEFAULT_AUTH_REFRESH_INTERVAL_SEC 2
#define GF_NFS_DEFAULT_AUTH_CACHE_TTL_SEC 300 /* 5 min */
/* This corresponds to the max 16 number of group IDs that are sent through an
* RPC request. Since NFS is the only one going to set this, we can be safe
* in keeping this size hardcoded.
*/
#define GF_REQUEST_MAXGROUPS 16
/* Callback into a version-specific NFS protocol.
* The return type is used by the nfs.c code to register the protocol.
* with the RPC service.
*/
typedef rpcsvc_program_t *(*nfs_version_initer_t)(xlator_t *nfsx);
/* List of version-specific protocol initiators */
struct nfs_initer_list {
struct list_head list;
nfs_version_initer_t init;
rpcsvc_program_t *program;
gf_boolean_t required;
};
struct nfs_state {
rpcsvc_t *rpcsvc;
struct list_head versions;
struct mount3_state *mstate;
struct nfs3_state *nfs3state;
struct nlm4_state *nlm4state;
struct mem_pool *foppool;
unsigned int memfactor;
xlator_list_t *subvols;
gf_lock_t svinitlock;
int allsubvols;
int upsubvols;
xlator_t **initedxl;
int subvols_started;
int dynamicvolumes;
int enable_ino32;
unsigned int override_portnum;
int allow_insecure;
int enable_nlm;
int enable_acl;
int mount_udp;
/* Enable exports auth model */
int exports_auth;
/* Refresh auth params from disk periodically */
int refresh_auth;
unsigned int auth_refresh_time_secs;
unsigned int auth_cache_ttl_sec;
char *rmtab;
struct rpc_clnt *rpc_clnt;
gf_boolean_t server_aux_gids;
uint32_t server_aux_gids_max_age;
gid_cache_t gid_cache;
uint32_t generation;
gf_boolean_t register_portmap;
char *rpc_statd;
char *rpc_statd_pid_file;
gf_boolean_t rdirplus;
uint32_t event_threads;
};
struct nfs_inode_ctx {
struct list_head shares;
uint32_t generation;
};
#define gf_nfs_dvm_on(nfsstt) \
(((struct nfs_state *)nfsstt)->dynamicvolumes == GF_NFS_DVM_ON)
#define gf_nfs_dvm_off(nfsstt) \
(((struct nfs_state *)nfsstt)->dynamicvolumes == GF_NFS_DVM_OFF)
#define __gf_nfs_enable_ino32(nfsstt) \
(((struct nfs_state *)nfsstt)->enable_ino32)
#define gf_nfs_this_private ((struct nfs_state *)((xlator_t *)THIS)->private)
#define gf_nfs_enable_ino32() (__gf_nfs_enable_ino32(gf_nfs_this_private))
/* We have one gid more than the glusterfs maximum since we pass the primary
* gid as the first element of the array.
*/
#define NFS_NGROUPS (GF_REQUEST_MAXGROUPS + 1)
/* Index of the primary gid */
#define NFS_PRIMGID_IDX 0
typedef struct nfs_user_info {
uid_t uid;
gid_t gids[NFS_NGROUPS];
int ngrps;
gf_lkowner_t lk_owner;
char identifier[UNIX_PATH_MAX]; /* ip of user */
} nfs_user_t;
extern int
nfs_user_root_create(nfs_user_t *newnfu);
extern int
nfs_user_create(nfs_user_t *newnfu, uid_t uid, gid_t gid,
rpc_transport_t *trans, gid_t *auxgids, int auxcount);
extern void
nfs_request_user_init(nfs_user_t *nfu, rpcsvc_request_t *req);
extern void
nfs_request_primary_user_init(nfs_user_t *nfu, rpcsvc_request_t *req, uid_t uid,
gid_t gid);
extern int
nfs_subvolume_started(struct nfs_state *nfs, xlator_t *xl);
extern void
nfs_fix_groups(xlator_t *this, call_stack_t *root);
#endif
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