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Commit | Line | Data |
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0a3adade BF |
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 | ||
1557aca7 | 8 | #include "nfsfh.h" |
3dadecce | 9 | #include "nfsd.h" |
1557aca7 | 10 | |
0a3adade BF |
11 | /* |
12 | * Flags for nfsd_permission | |
13 | */ | |
8e82fa8f BF |
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 | |
aea93397 BF |
22 | |
23 | /* extra hints to permission and open routines: */ | |
8e82fa8f BF |
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 | |
0a3adade | 30 | |
06effdbb BS |
31 | #define NFSD_MAY_64BIT_COOKIE 0x1000 /* 64 bit readdir cookies for >= NFSv3 */ |
32 | ||
0a3adade BF |
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) | |
35 | ||
36 | /* | |
37 | * Callback function for readdir | |
38 | */ | |
ac7576f4 | 39 | typedef int (*nfsd_filldir_t)(void *, const char *, int, loff_t, u64, unsigned); |
0a3adade BF |
40 | |
41 | /* nfsd/vfs.c */ | |
0a3adade BF |
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); | |
3227fa41 | 53 | int nfsd_mountpoint(struct dentry *, struct svc_export *); |
0a3adade | 54 | #ifdef CONFIG_NFSD_V4 |
18032ca0 DQ |
55 | __be32 nfsd4_set_nfs4_label(struct svc_rqst *, struct svc_fh *, |
56 | struct xdr_netobj *); | |
95d871f0 AS |
57 | __be32 nfsd4_vfs_fallocate(struct svc_rqst *, struct svc_fh *, |
58 | struct file *, loff_t, loff_t, int); | |
0a3adade BF |
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); | |
63 | #ifdef CONFIG_NFSD_V3 | |
64 | __be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *); | |
ac6721a1 | 65 | __be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *, |
0a3adade BF |
66 | char *name, int len, struct iattr *attrs, |
67 | struct svc_fh *res, int createmode, | |
856121b2 | 68 | u32 *verifier, bool *truncp, bool *created); |
0a3adade BF |
69 | __be32 nfsd_commit(struct svc_rqst *, struct svc_fh *, |
70 | loff_t, unsigned long); | |
71 | #endif /* CONFIG_NFSD_V3 */ | |
175a4eb7 | 72 | __be32 nfsd_open(struct svc_rqst *, struct svc_fh *, umode_t, |
0a3adade | 73 | int, struct file **); |
dc97618d | 74 | struct raparms; |
e2afc819 | 75 | __be32 nfsd_splice_read(struct svc_rqst *, |
dc97618d | 76 | struct file *, loff_t, unsigned long *); |
e2afc819 | 77 | __be32 nfsd_readv(struct file *, loff_t, struct kvec *, int, |
dc97618d | 78 | unsigned long *); |
039a87ca BF |
79 | __be32 nfsd_read(struct svc_rqst *, struct svc_fh *, |
80 | loff_t, struct kvec *, int, unsigned long *); | |
0a3adade BF |
81 | __be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *, |
82 | loff_t, struct kvec *,int, unsigned long *, int *); | |
af90f707 CH |
83 | __be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp, |
84 | struct file *file, loff_t offset, | |
85 | struct kvec *vec, int vlen, unsigned long *cnt, | |
86 | int *stablep); | |
0a3adade BF |
87 | __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *, |
88 | char *, int *); | |
89 | __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *, | |
52ee0433 | 90 | char *name, int len, char *path, |
1e444f5b | 91 | struct svc_fh *res); |
0a3adade BF |
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); | |
0a3adade BF |
97 | __be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type, |
98 | char *name, int len); | |
0a3adade | 99 | __be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *, |
ac7576f4 | 100 | loff_t *, struct readdir_cd *, nfsd_filldir_t); |
0a3adade BF |
101 | __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, |
102 | struct kstatfs *, int access); | |
103 | ||
0a3adade BF |
104 | __be32 nfsd_permission(struct svc_rqst *, struct svc_export *, |
105 | struct dentry *, int); | |
0a3adade | 106 | |
e749a462 CH |
107 | struct raparms *nfsd_init_raparms(struct file *file); |
108 | void nfsd_put_raparams(struct file *file, struct raparms *ra); | |
109 | ||
bad0dcff AV |
110 | static inline int fh_want_write(struct svc_fh *fh) |
111 | { | |
4a55c101 JK |
112 | int ret = mnt_want_write(fh->fh_export->ex_path.mnt); |
113 | ||
114 | if (!ret) | |
115 | fh->fh_want_write = 1; | |
116 | return ret; | |
bad0dcff AV |
117 | } |
118 | ||
119 | static inline void fh_drop_write(struct svc_fh *fh) | |
120 | { | |
4a55c101 JK |
121 | if (fh->fh_want_write) { |
122 | fh->fh_want_write = 0; | |
123 | mnt_drop_write(fh->fh_export->ex_path.mnt); | |
124 | } | |
bad0dcff AV |
125 | } |
126 | ||
3dadecce AV |
127 | static inline __be32 fh_getattr(struct svc_fh *fh, struct kstat *stat) |
128 | { | |
129 | struct path p = {.mnt = fh->fh_export->ex_path.mnt, | |
130 | .dentry = fh->fh_dentry}; | |
131 | return nfserrno(vfs_getattr(&p, stat)); | |
132 | } | |
133 | ||
0a3adade | 134 | #endif /* LINUX_NFSD_VFS_H */ |