2 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
7 #include <linux/sunrpc/cache.h>
8 #include <uapi/linux/nfsd/export.h>
18 #define MAX_FS_LOCATIONS 128
20 struct nfsd4_fs_location {
21 char *hosts; /* colon separated list of hosts */
22 char *path; /* slash separated list of path components */
25 struct nfsd4_fs_locations {
26 uint32_t locations_count;
27 struct nfsd4_fs_location *locations;
28 /* If we're not actually serving this data ourselves (only providing a
29 * list of replicas that do serve it) then we set "migrated": */
34 * We keep an array of pseudoflavors with the export, in order from most
35 * to least preferred. For the foreseeable future, we don't expect more
36 * than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3,
37 * spkm3i, and spkm3p (and using all 8 at once should be rare).
39 #define MAX_SECINFO_LIST 8
41 struct exp_flavor_info {
48 struct auth_domain * ex_client;
54 unsigned char * ex_uuid; /* 16 byte fsid */
55 struct nfsd4_fs_locations ex_fslocs;
57 struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST];
58 struct cache_detail *cd;
61 /* an "export key" (expkey) maps a filehandlefragement to an
62 * svc_export for a given client. There can be several per export,
63 * for the different fsid types.
68 struct auth_domain * ek_client;
75 #define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC))
76 #define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE)
77 #define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES)
79 int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp);
80 __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);
83 * Function declarations
85 int nfsd_export_init(struct net *);
86 void nfsd_export_shutdown(struct net *);
87 void nfsd_export_flush(struct net *);
88 struct svc_export * rqst_exp_get_by_name(struct svc_rqst *,
90 struct svc_export * rqst_exp_parent(struct svc_rqst *,
92 struct svc_export * rqst_find_fsidzero_export(struct svc_rqst *);
93 int exp_rootfh(struct net *, struct auth_domain *,
94 char *path, struct knfsd_fh *, int maxsize);
95 __be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *);
96 __be32 nfserrno(int errno);
98 static inline void exp_put(struct svc_export *exp)
100 cache_put(&exp->h, exp->cd);
103 static inline void exp_get(struct svc_export *exp)
107 struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);
109 #endif /* NFSD_EXPORT_H */