| /* |
| * include/linux/nfsd/export.h |
| * |
| * Public declarations for NFS exports. The definitions for the |
| * syscall interface are in nfsctl.h |
| * |
| * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> |
| */ |
| |
| #ifndef NFSD_EXPORT_H |
| #define NFSD_EXPORT_H |
| |
| #include <asm/types.h> |
| #ifdef __KERNEL__ |
| # include <linux/types.h> |
| # include <linux/in.h> |
| #endif |
| |
| /* |
| * Important limits for the exports stuff. |
| */ |
| #define NFSCLNT_IDMAX 1024 |
| #define NFSCLNT_ADDRMAX 16 |
| #define NFSCLNT_KEYMAX 32 |
| |
| /* |
| * Export flags. |
| */ |
| #define NFSEXP_READONLY 0x0001 |
| #define NFSEXP_INSECURE_PORT 0x0002 |
| #define NFSEXP_ROOTSQUASH 0x0004 |
| #define NFSEXP_ALLSQUASH 0x0008 |
| #define NFSEXP_ASYNC 0x0010 |
| #define NFSEXP_GATHERED_WRITES 0x0020 |
| #define NFSEXP_UIDMAP 0x0040 |
| #define NFSEXP_KERBEROS 0x0080 /* not available */ |
| #define NFSEXP_SUNSECURE 0x0100 |
| #define NFSEXP_CROSSMNT 0x0200 |
| #define NFSEXP_NOSUBTREECHECK 0x0400 |
| #define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */ |
| #define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect */ |
| #define NFSEXP_ALLFLAGS 0x1FFF |
| |
| |
| #ifdef __KERNEL__ |
| |
| /* The following are hashtable sizes and must be powers of 2 */ |
| #define NFSCLNT_EXPMAX 16 |
| |
| struct svc_client { |
| struct svc_client * cl_next; |
| char cl_ident[NFSCLNT_IDMAX]; |
| int cl_idlen; |
| int cl_naddr; |
| struct in_addr cl_addr[NFSCLNT_ADDRMAX]; |
| struct svc_uidmap * cl_umap; |
| struct list_head cl_export[NFSCLNT_EXPMAX]; |
| struct list_head cl_list; |
| }; |
| |
| struct svc_export { |
| struct list_head ex_hash; |
| struct list_head ex_list; |
| char ex_path[NFS_MAXPATHLEN+1]; |
| struct svc_export * ex_parent; |
| struct svc_client * ex_client; |
| int ex_flags; |
| struct vfsmount * ex_mnt; |
| struct dentry * ex_dentry; |
| kdev_t ex_dev; |
| ino_t ex_ino; |
| uid_t ex_anon_uid; |
| gid_t ex_anon_gid; |
| }; |
| |
| #define EX_SECURE(exp) (!((exp)->ex_flags & NFSEXP_INSECURE_PORT)) |
| #define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC)) |
| #define EX_RDONLY(exp) ((exp)->ex_flags & NFSEXP_READONLY) |
| #define EX_CROSSMNT(exp) ((exp)->ex_flags & NFSEXP_CROSSMNT) |
| #define EX_SUNSECURE(exp) ((exp)->ex_flags & NFSEXP_SUNSECURE) |
| #define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES) |
| |
| |
| /* |
| * Function declarations |
| */ |
| void nfsd_export_init(void); |
| void nfsd_export_shutdown(void); |
| void exp_readlock(void); |
| int exp_writelock(void); |
| void exp_unlock(void); |
| struct svc_client * exp_getclient(struct sockaddr_in *sin); |
| void exp_putclient(struct svc_client *clp); |
| struct svc_export * exp_get(struct svc_client *clp, kdev_t dev, ino_t ino); |
| struct svc_export * exp_get_by_name(struct svc_client *clp, |
| struct vfsmount *mnt, |
| struct dentry *dentry); |
| int exp_rootfh(struct svc_client *, |
| char *path, struct knfsd_fh *, int maxsize); |
| int nfserrno(int errno); |
| void exp_nlmdetach(void); |
| |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* NFSD_EXPORT_H */ |
| |