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_dirop_t)(struct inode *, struct dentry *, int, int);
42 int fh_lock_parent(struct svc_fh *, struct dentry *);
43 int nfsd_racache_init(int);
44 void nfsd_racache_shutdown(void);
45 int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
46 struct svc_export **expp);
47 __be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *,
48 const char *, unsigned int, struct svc_fh *);
49 __be32 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
50 const char *, unsigned int,
51 struct svc_export **, struct dentry **);
52 __be32 nfsd_setattr(struct svc_rqst *, struct svc_fh *,
53 struct iattr *, int, time_t);
54 int nfsd_mountpoint(struct dentry *, struct svc_export *);
56 __be32 nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
58 int nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
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 *);
75 __be32 nfsd_read(struct svc_rqst *, struct svc_fh *,
76 loff_t, struct kvec *, int, unsigned long *);
77 __be32 nfsd_read_file(struct svc_rqst *, struct svc_fh *, struct file *,
78 loff_t, struct kvec *, int, unsigned long *);
79 __be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
80 loff_t, struct kvec *,int, unsigned long *, int *);
81 __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *,
83 __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *,
84 char *name, int len, char *path, int plen,
85 struct svc_fh *res, struct iattr *);
86 __be32 nfsd_link(struct svc_rqst *, struct svc_fh *,
87 char *, int, struct svc_fh *);
88 __be32 nfsd_rename(struct svc_rqst *,
89 struct svc_fh *, char *, int,
90 struct svc_fh *, char *, int);
91 __be32 nfsd_remove(struct svc_rqst *,
92 struct svc_fh *, char *, int);
93 __be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
95 int nfsd_truncate(struct svc_rqst *, struct svc_fh *,
97 __be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *,
98 loff_t *, struct readdir_cd *, filldir_t);
99 __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *,
100 struct kstatfs *, int access);
102 int nfsd_notify_change(struct inode *, struct iattr *);
103 __be32 nfsd_permission(struct svc_rqst *, struct svc_export *,
104 struct dentry *, int);
105 int nfsd_sync_dir(struct dentry *dp);
107 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
108 struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
109 int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
112 static inline int fh_want_write(struct svc_fh *fh)
114 int ret = mnt_want_write(fh->fh_export->ex_path.mnt);
117 fh->fh_want_write = 1;
121 static inline void fh_drop_write(struct svc_fh *fh)
123 if (fh->fh_want_write) {
124 fh->fh_want_write = 0;
125 mnt_drop_write(fh->fh_export->ex_path.mnt);
129 static inline __be32 fh_getattr(struct svc_fh *fh, struct kstat *stat)
131 struct path p = {.mnt = fh->fh_export->ex_path.mnt,
132 .dentry = fh->fh_dentry};
133 return nfserrno(vfs_getattr(&p, stat));
136 #endif /* LINUX_NFSD_VFS_H */