linux/fs/nfsd/export.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 1995-1997 Olaf Kirch <[email protected]>
 */
#ifndef NFSD_EXPORT_H
#define NFSD_EXPORT_H

#include <linux/sunrpc/cache.h>
#include <linux/percpu_counter.h>
#include <uapi/linux/nfsd/export.h>
#include <linux/nfs4.h>

struct knfsd_fh;
struct svc_fh;
struct svc_rqst;

/*
 * FS Locations
 */

#define MAX_FS_LOCATIONS …

struct nfsd4_fs_location { … };

struct nfsd4_fs_locations { … };

/*
 * We keep an array of pseudoflavors with the export, in order from most
 * to least preferred.  For the foreseeable future, we don't expect more
 * than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3,
 * spkm3i, and spkm3p (and using all 8 at once should be rare).
 */
#define MAX_SECINFO_LIST …
#define EX_UUID_LEN …

struct exp_flavor_info { … };

/* Per-export stats */
enum { … };

struct export_stats { … };

struct svc_export { … };

/* an "export key" (expkey) maps a filehandlefragement to an
 * svc_export for a given client.  There can be several per export,
 * for the different fsid types.
 */
struct svc_expkey { … };

#define EX_ISSYNC(exp) …
#define EX_NOHIDE(exp) …
#define EX_WGATHER(exp) …

int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp);
__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);

/*
 * Function declarations
 */
int			nfsd_export_init(struct net *);
void			nfsd_export_shutdown(struct net *);
void			nfsd_export_flush(struct net *);
struct svc_export *	rqst_exp_get_by_name(struct svc_rqst *,
					     struct path *);
struct svc_export *	rqst_exp_parent(struct svc_rqst *,
					struct path *);
struct svc_export *	rqst_find_fsidzero_export(struct svc_rqst *);
int			exp_rootfh(struct net *, struct auth_domain *,
					char *path, struct knfsd_fh *, int maxsize);
__be32			exp_pseudoroot(struct svc_rqst *, struct svc_fh *);

static inline void exp_put(struct svc_export *exp)
{ … }

static inline struct svc_export *exp_get(struct svc_export *exp)
{ … }
struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);

#endif /* NFSD_EXPORT_H */