diff options
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/export.h | 109 | ||||
| -rw-r--r-- | fs/nfsd/nfsd.h | 3 |
2 files changed, 111 insertions, 1 deletions
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h new file mode 100644 index 000000000000..d7939a62a0ae --- /dev/null +++ b/fs/nfsd/export.h @@ -0,0 +1,109 @@ +/* + * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> + */ +#ifndef NFSD_EXPORT_H +#define NFSD_EXPORT_H + +#include <linux/sunrpc/cache.h> +#include <uapi/linux/nfsd/export.h> + +struct knfsd_fh; +struct svc_fh; +struct svc_rqst; + +/* + * FS Locations + */ + +#define MAX_FS_LOCATIONS 128 + +struct nfsd4_fs_location { + char *hosts; /* colon separated list of hosts */ + char *path; /* slash separated list of path components */ +}; + +struct nfsd4_fs_locations { + uint32_t locations_count; + struct nfsd4_fs_location *locations; +/* If we're not actually serving this data ourselves (only providing a + * list of replicas that do serve it) then we set "migrated": */ + int migrated; +}; + +/* + * 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 8 + +struct exp_flavor_info { + u32 pseudoflavor; + u32 flags; +}; + +struct svc_export { + struct cache_head h; + struct auth_domain * ex_client; + int ex_flags; + struct path ex_path; + kuid_t ex_anon_uid; + kgid_t ex_anon_gid; + int ex_fsid; + unsigned char * ex_uuid; /* 16 byte fsid */ + struct nfsd4_fs_locations ex_fslocs; + int ex_nflavors; + struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST]; + struct cache_detail *cd; +}; + +/* 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 { + struct cache_head h; + + struct auth_domain * ek_client; + int ek_fsidtype; + u32 ek_fsid[6]; + + struct path ek_path; +}; + +#define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC)) +#define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE) +#define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES) + +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 *); +__be32 nfserrno(int errno); + +static inline void exp_put(struct svc_export *exp) +{ + cache_put(&exp->h, exp->cd); +} + +static inline void exp_get(struct svc_export *exp) +{ + cache_get(&exp->h); +} +struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *); + +#endif /* NFSD_EXPORT_H */ diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index 7d5c310678d0..72004caad718 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -19,9 +19,10 @@ #include <linux/sunrpc/msg_prot.h> #include <linux/nfsd/debug.h> -#include <linux/nfsd/export.h> #include <linux/nfsd/stats.h> +#include "export.h" + /* * nfsd version */ |