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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-17 16:15:55 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-17 16:15:55 -0500
commit8dea78da5cee153b8af9c07a2745f6c55057fe12 (patch)
treea8f4d49d63b1ecc92f2fddceba0655b2472c5bd9 /include/linux/nfsd/export.h
parent406089d01562f1e2bf9f089fd7637009ebaad589 (diff)
Patched in Tegra support.
Diffstat (limited to 'include/linux/nfsd/export.h')
-rw-r--r--include/linux/nfsd/export.h67
1 files changed, 59 insertions, 8 deletions
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 24c139288db..8a31a20efe7 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -6,11 +6,58 @@
6 * 6 *
7 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> 7 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
8 */ 8 */
9
9#ifndef NFSD_EXPORT_H 10#ifndef NFSD_EXPORT_H
10#define NFSD_EXPORT_H 11#define NFSD_EXPORT_H
11 12
13# include <linux/types.h>
14#ifdef __KERNEL__
12# include <linux/nfsd/nfsfh.h> 15# include <linux/nfsd/nfsfh.h>
13#include <uapi/linux/nfsd/export.h> 16#endif
17
18/*
19 * Important limits for the exports stuff.
20 */
21#define NFSCLNT_IDMAX 1024
22#define NFSCLNT_ADDRMAX 16
23#define NFSCLNT_KEYMAX 32
24
25/*
26 * Export flags.
27 */
28#define NFSEXP_READONLY 0x0001
29#define NFSEXP_INSECURE_PORT 0x0002
30#define NFSEXP_ROOTSQUASH 0x0004
31#define NFSEXP_ALLSQUASH 0x0008
32#define NFSEXP_ASYNC 0x0010
33#define NFSEXP_GATHERED_WRITES 0x0020
34/* 40 80 100 currently unused */
35#define NFSEXP_NOHIDE 0x0200
36#define NFSEXP_NOSUBTREECHECK 0x0400
37#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
38#define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect; no longer supported */
39#define NFSEXP_FSID 0x2000
40#define NFSEXP_CROSSMOUNT 0x4000
41#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
42/*
43 * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
44 * clients, and only to the single directory that is the root of the
45 * export; further lookup and readdir operations are treated as if every
46 * subdirectory was a mountpoint, and ignored if they are not themselves
47 * exported. This is used by nfsd and mountd to construct the NFSv4
48 * pseudofilesystem, which provides access only to paths leading to each
49 * exported filesystem.
50 */
51#define NFSEXP_V4ROOT 0x10000
52/* All flags that we claim to support. (Note we don't support NOACL.) */
53#define NFSEXP_ALLFLAGS 0x17E3F
54
55/* The flags that may vary depending on security flavor: */
56#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
57 | NFSEXP_ALLSQUASH \
58 | NFSEXP_INSECURE_PORT)
59
60#ifdef __KERNEL__
14 61
15/* 62/*
16 * FS Locations 63 * FS Locations
@@ -49,6 +96,7 @@ struct svc_export {
49 struct auth_domain * ex_client; 96 struct auth_domain * ex_client;
50 int ex_flags; 97 int ex_flags;
51 struct path ex_path; 98 struct path ex_path;
99 char *ex_pathname;
52 uid_t ex_anon_uid; 100 uid_t ex_anon_uid;
53 gid_t ex_anon_gid; 101 gid_t ex_anon_gid;
54 int ex_fsid; 102 int ex_fsid;
@@ -56,7 +104,6 @@ struct svc_export {
56 struct nfsd4_fs_locations ex_fslocs; 104 struct nfsd4_fs_locations ex_fslocs;
57 int ex_nflavors; 105 int ex_nflavors;
58 struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST]; 106 struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST];
59 struct cache_detail *cd;
60}; 107};
61 108
62/* an "export key" (expkey) maps a filehandlefragement to an 109/* an "export key" (expkey) maps a filehandlefragement to an
@@ -83,22 +130,23 @@ __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp);
83/* 130/*
84 * Function declarations 131 * Function declarations
85 */ 132 */
86int nfsd_export_init(struct net *); 133int nfsd_export_init(void);
87void nfsd_export_shutdown(struct net *); 134void nfsd_export_shutdown(void);
88void nfsd_export_flush(struct net *); 135void nfsd_export_flush(void);
89struct svc_export * rqst_exp_get_by_name(struct svc_rqst *, 136struct svc_export * rqst_exp_get_by_name(struct svc_rqst *,
90 struct path *); 137 struct path *);
91struct svc_export * rqst_exp_parent(struct svc_rqst *, 138struct svc_export * rqst_exp_parent(struct svc_rqst *,
92 struct path *); 139 struct path *);
93struct svc_export * rqst_find_fsidzero_export(struct svc_rqst *); 140int exp_rootfh(struct auth_domain *,
94int exp_rootfh(struct net *, struct auth_domain *,
95 char *path, struct knfsd_fh *, int maxsize); 141 char *path, struct knfsd_fh *, int maxsize);
96__be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *); 142__be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *);
97__be32 nfserrno(int errno); 143__be32 nfserrno(int errno);
98 144
145extern struct cache_detail svc_export_cache;
146
99static inline void exp_put(struct svc_export *exp) 147static inline void exp_put(struct svc_export *exp)
100{ 148{
101 cache_put(&exp->h, exp->cd); 149 cache_put(&exp->h, &svc_export_cache);
102} 150}
103 151
104static inline void exp_get(struct svc_export *exp) 152static inline void exp_get(struct svc_export *exp)
@@ -107,4 +155,7 @@ static inline void exp_get(struct svc_export *exp)
107} 155}
108struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *); 156struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *);
109 157
158#endif /* __KERNEL__ */
159
110#endif /* NFSD_EXPORT_H */ 160#endif /* NFSD_EXPORT_H */
161