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gerrit-public.fairphone.software / kernel / msm-4.19 / 6f07e42ee6fcc252a210781d7262f4051e9fd8f6 / . / fs / nfsd / vfs.h
blob: 1dcd238e11a09c1051148f4ce27d3d06bb7da26a [file] [log] [blame]
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]1/*
2 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
3 */
4
5#ifndef LINUX_NFSD_VFS_H
6#define LINUX_NFSD_VFS_H
7
J. Bruce Fields1557aca2009-12-04 19:36:06 -0500[diff] [blame]8#include "nfsfh.h"
9
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]10/*
11 * Flags for nfsd_permission
12 */
J. Bruce Fields8e82fa82011-08-25 14:23:39 -0400[diff] [blame]13#define NFSD_MAY_NOP 0
14#define NFSD_MAY_EXEC 0x001 /* == MAY_EXEC */
15#define NFSD_MAY_WRITE 0x002 /* == MAY_WRITE */
16#define NFSD_MAY_READ 0x004 /* == MAY_READ */
17#define NFSD_MAY_SATTR 0x008
18#define NFSD_MAY_TRUNC 0x010
19#define NFSD_MAY_LOCK 0x020
20#define NFSD_MAY_MASK 0x03f
J. Bruce Fieldsaea93392011-04-10 10:35:12 -0400[diff] [blame]21
22/* extra hints to permission and open routines: */
J. Bruce Fields8e82fa82011-08-25 14:23:39 -0400[diff] [blame]23#define NFSD_MAY_OWNER_OVERRIDE 0x040
24#define NFSD_MAY_LOCAL_ACCESS 0x080 /* for device special files */
25#define NFSD_MAY_BYPASS_GSS_ON_ROOT 0x100
26#define NFSD_MAY_NOT_BREAK_LEASE 0x200
27#define NFSD_MAY_BYPASS_GSS 0x400
28#define NFSD_MAY_READ_IF_EXEC 0x800
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]29
30#define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE)
31#define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC)
32
33/*
34 * Callback function for readdir
35 */
36typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
37
38/* nfsd/vfs.c */
39int fh_lock_parent(struct svc_fh *, struct dentry *);
40int nfsd_racache_init(int);
41void nfsd_racache_shutdown(void);
42int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
43 struct svc_export **expp);
44__be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *,
45 const char *, unsigned int, struct svc_fh *);
46__be32 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *,
47 const char *, unsigned int,
48 struct svc_export **, struct dentry **);
49__be32 nfsd_setattr(struct svc_rqst *, struct svc_fh *,
50 struct iattr *, int, time_t);
J. Bruce Fields3227fa42009-10-25 21:43:01 -0400[diff] [blame]51int nfsd_mountpoint(struct dentry *, struct svc_export *);
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]52#ifdef CONFIG_NFSD_V4
53__be32 nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
54 struct nfs4_acl *);
55int nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
56#endif /* CONFIG_NFSD_V4 */
57__be32 nfsd_create(struct svc_rqst *, struct svc_fh *,
58 char *name, int len, struct iattr *attrs,
59 int type, dev_t rdev, struct svc_fh *res);
60#ifdef CONFIG_NFSD_V3
61__be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
Mi Jinlongac6721a2011-04-20 17:06:25 +0800[diff] [blame]62__be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *,
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]63 char *name, int len, struct iattr *attrs,
64 struct svc_fh *res, int createmode,
J. Bruce Fields856121b2011-10-13 11:37:11 -0400[diff] [blame]65 u32 *verifier, bool *truncp, bool *created);
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]66__be32 nfsd_commit(struct svc_rqst *, struct svc_fh *,
67 loff_t, unsigned long);
68#endif /* CONFIG_NFSD_V3 */
Al Viro175a4eb2011-07-26 03:30:54 -0400[diff] [blame]69__be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t,
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]70 int, struct file **);
71void nfsd_close(struct file *);
J. Bruce Fields039a87c2010-07-30 11:33:32 -0400[diff] [blame]72__be32 nfsd_read(struct svc_rqst *, struct svc_fh *,
73 loff_t, struct kvec *, int, unsigned long *);
74__be32 nfsd_read_file(struct svc_rqst *, struct svc_fh *, struct file *,
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]75 loff_t, struct kvec *, int, unsigned long *);
76__be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
77 loff_t, struct kvec *,int, unsigned long *, int *);
78__be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *,
79 char *, int *);
80__be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *,
81 char *name, int len, char *path, int plen,
82 struct svc_fh *res, struct iattr *);
83__be32 nfsd_link(struct svc_rqst *, struct svc_fh *,
84 char *, int, struct svc_fh *);
85__be32 nfsd_rename(struct svc_rqst *,
86 struct svc_fh *, char *, int,
87 struct svc_fh *, char *, int);
88__be32 nfsd_remove(struct svc_rqst *,
89 struct svc_fh *, char *, int);
90__be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
91 char *name, int len);
92int nfsd_truncate(struct svc_rqst *, struct svc_fh *,
93 unsigned long size);
94__be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *,
95 loff_t *, struct readdir_cd *, filldir_t);
96__be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *,
97 struct kstatfs *, int access);
98
99int nfsd_notify_change(struct inode *, struct iattr *);
100__be32 nfsd_permission(struct svc_rqst *, struct svc_export *,
101 struct dentry *, int);
102int nfsd_sync_dir(struct dentry *dp);
103
104#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
105struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int);
106int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *);
107#endif
108
Al Virobad0dcf2011-11-23 12:03:18 -0500[diff] [blame]109static inline int fh_want_write(struct svc_fh *fh)
110{
111 return mnt_want_write(fh->fh_export->ex_path.mnt);
112}
113
114static inline void fh_drop_write(struct svc_fh *fh)
115{
116 mnt_drop_write(fh->fh_export->ex_path.mnt);
117}
118
J. Bruce Fields0a3adad2009-11-04 18:12:35 -0500[diff] [blame]119#endif /* LINUX_NFSD_VFS_H */