]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - fs/nfsd/vfs.h
2 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
5 #ifndef LINUX_NFSD_VFS_H
6 #define LINUX_NFSD_VFS_H
12 * Flags for nfsd_permission
14 #define NFSD_MAY_NOP 0
15 #define NFSD_MAY_EXEC 0x001 /* == MAY_EXEC */
16 #define NFSD_MAY_WRITE 0x002 /* == MAY_WRITE */
17 #define NFSD_MAY_READ 0x004 /* == MAY_READ */
18 #define NFSD_MAY_SATTR 0x008
19 #define NFSD_MAY_TRUNC 0x010
20 #define NFSD_MAY_LOCK 0x020
21 #define NFSD_MAY_MASK 0x03f
23 /* extra hints to permission and open routines: */
24 #define NFSD_MAY_OWNER_OVERRIDE 0x040
25 #define NFSD_MAY_LOCAL_ACCESS 0x080 /* for device special files */
26 #define NFSD_MAY_BYPASS_GSS_ON_ROOT 0x100
27 #define NFSD_MAY_NOT_BREAK_LEASE 0x200
28 #define NFSD_MAY_BYPASS_GSS 0x400
29 #define NFSD_MAY_READ_IF_EXEC 0x800
31 #define NFSD_MAY_64BIT_COOKIE 0x1000 /* 64 bit readdir cookies for >= NFSv3 */
33 #define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE)
34 #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
37 * Callback function for readdir
39 typedef int (*nfsd_filldir_t
)(void *, const char *, int, loff_t
, u64
, unsigned);
42 int nfsd_racache_init(int);
43 void nfsd_racache_shutdown(void);
44 int nfsd_cross_mnt(struct svc_rqst
*rqstp
, struct dentry
**dpp
,
45 struct svc_export
**expp
);
46 __be32
nfsd_lookup(struct svc_rqst
*, struct svc_fh
*,
47 const char *, unsigned int, struct svc_fh
*);
48 __be32
nfsd_lookup_dentry(struct svc_rqst
*, struct svc_fh
*,
49 const char *, unsigned int,
50 struct svc_export
**, struct dentry
**);
51 __be32
nfsd_setattr(struct svc_rqst
*, struct svc_fh
*,
52 struct iattr
*, int, time_t);
53 int nfsd_mountpoint(struct dentry
*, struct svc_export
*);
55 __be32
nfsd4_set_nfs4_label(struct svc_rqst
*, struct svc_fh
*,
57 __be32
nfsd4_vfs_fallocate(struct svc_rqst
*, struct svc_fh
*,
58 struct file
*, loff_t
, loff_t
, int);
59 #endif /* CONFIG_NFSD_V4 */
60 __be32
nfsd_create(struct svc_rqst
*, struct svc_fh
*,
61 char *name
, int len
, struct iattr
*attrs
,
62 int type
, dev_t rdev
, struct svc_fh
*res
);
64 __be32
nfsd_access(struct svc_rqst
*, struct svc_fh
*, u32
*, u32
*);
65 __be32
do_nfsd_create(struct svc_rqst
*, struct svc_fh
*,
66 char *name
, int len
, struct iattr
*attrs
,
67 struct svc_fh
*res
, int createmode
,
68 u32
*verifier
, bool *truncp
, bool *created
);
69 __be32
nfsd_commit(struct svc_rqst
*, struct svc_fh
*,
70 loff_t
, unsigned long);
71 #endif /* CONFIG_NFSD_V3 */
72 __be32
nfsd_open(struct svc_rqst
*, struct svc_fh
*, umode_t
,
74 void nfsd_close(struct file
*);
76 __be32
nfsd_get_tmp_read_open(struct svc_rqst
*, struct svc_fh
*,
77 struct file
**, struct raparms
**);
78 void nfsd_put_tmp_read_open(struct file
*, struct raparms
*);
79 __be32
nfsd_splice_read(struct svc_rqst
*,
80 struct file
*, loff_t
, unsigned long *);
81 __be32
nfsd_readv(struct file
*, loff_t
, struct kvec
*, int,
83 __be32
nfsd_read(struct svc_rqst
*, struct svc_fh
*,
84 loff_t
, struct kvec
*, int, unsigned long *);
85 __be32
nfsd_write(struct svc_rqst
*, struct svc_fh
*,struct file
*,
86 loff_t
, struct kvec
*,int, unsigned long *, int *);
87 __be32
nfsd_readlink(struct svc_rqst
*, struct svc_fh
*,
89 __be32
nfsd_symlink(struct svc_rqst
*, struct svc_fh
*,
90 char *name
, int len
, char *path
,
92 __be32
nfsd_link(struct svc_rqst
*, struct svc_fh
*,
93 char *, int, struct svc_fh
*);
94 __be32
nfsd_rename(struct svc_rqst
*,
95 struct svc_fh
*, char *, int,
96 struct svc_fh
*, char *, int);
97 __be32
nfsd_unlink(struct svc_rqst
*, struct svc_fh
*, int type
,
99 __be32
nfsd_readdir(struct svc_rqst
*, struct svc_fh
*,
100 loff_t
*, struct readdir_cd
*, nfsd_filldir_t
);
101 __be32
nfsd_statfs(struct svc_rqst
*, struct svc_fh
*,
102 struct kstatfs
*, int access
);
104 __be32
nfsd_permission(struct svc_rqst
*, struct svc_export
*,
105 struct dentry
*, int);
107 static inline int fh_want_write(struct svc_fh
*fh
)
109 int ret
= mnt_want_write(fh
->fh_export
->ex_path
.mnt
);
112 fh
->fh_want_write
= 1;
116 static inline void fh_drop_write(struct svc_fh
*fh
)
118 if (fh
->fh_want_write
) {
119 fh
->fh_want_write
= 0;
120 mnt_drop_write(fh
->fh_export
->ex_path
.mnt
);
124 static inline __be32
fh_getattr(struct svc_fh
*fh
, struct kstat
*stat
)
126 struct path p
= {.mnt
= fh
->fh_export
->ex_path
.mnt
,
127 .dentry
= fh
->fh_dentry
};
128 return nfserrno(vfs_getattr(&p
, stat
));
131 #endif /* LINUX_NFSD_VFS_H */