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review.evervolv.com / android_kernel_htc_msm8960 / d64f73be1b59b9556de0a8fbd4f1a003c6a45a5c / . / include / linux / nfsd / syscall.h
blob: 8bcddccb6c427e81a7a7b960d1f25afaa1bb9b6f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * include/linux/nfsd/syscall.h
3 *
4 * This file holds all declarations for the knfsd syscall interface.
5 *
6 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
7 */
8
9#ifndef NFSD_SYSCALL_H
10#define NFSD_SYSCALL_H
11
12#include <asm/types.h>
13#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]14# include <linux/types.h>
15# include <linux/in.h>
16#endif
17#include <linux/posix_types.h>
18#include <linux/nfsd/const.h>
19#include <linux/nfsd/export.h>
20#include <linux/nfsd/nfsfh.h>
21#include <linux/nfsd/auth.h>
22
23/*
24 * Version of the syscall interface
25 */
26#define NFSCTL_VERSION 0x0201
27
28/*
29 * These are the commands understood by nfsctl().
30 */
31#define NFSCTL_SVC 0 /* This is a server process. */
32#define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */
33#define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */
34#define NFSCTL_EXPORT 3 /* export a file system. */
35#define NFSCTL_UNEXPORT 4 /* unexport a file system. */
36/*#define NFSCTL_UGIDUPDATE 5 / * update a client's uid/gid map. DISCARDED */
37/*#define NFSCTL_GETFH 6 / * get an fh by ino DISCARDED */
38#define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */
39#define NFSCTL_GETFS 8 /* get an fh by path with max FH len */
40
41/* SVC */
42struct nfsctl_svc {
43 unsigned short svc_port;
44 int svc_nthreads;
45};
46
47/* ADDCLIENT/DELCLIENT */
48struct nfsctl_client {
49 char cl_ident[NFSCLNT_IDMAX+1];
50 int cl_naddr;
51 struct in_addr cl_addrlist[NFSCLNT_ADDRMAX];
52 int cl_fhkeytype;
53 int cl_fhkeylen;
54 unsigned char cl_fhkey[NFSCLNT_KEYMAX];
55};
56
57/* EXPORT/UNEXPORT */
58struct nfsctl_export {
59 char ex_client[NFSCLNT_IDMAX+1];
60 char ex_path[NFS_MAXPATHLEN+1];
61 __kernel_old_dev_t ex_dev;
62 __kernel_ino_t ex_ino;
63 int ex_flags;
64 __kernel_uid_t ex_anon_uid;
65 __kernel_gid_t ex_anon_gid;
66};
67
68/* GETFD */
69struct nfsctl_fdparm {
70 struct sockaddr gd_addr;
71 char gd_path[NFS_MAXPATHLEN+1];
72 int gd_version;
73};
74
75/* GETFS - GET Filehandle with Size */
76struct nfsctl_fsparm {
77 struct sockaddr gd_addr;
78 char gd_path[NFS_MAXPATHLEN+1];
79 int gd_maxlen;
80};
81
82/*
83 * This is the argument union.
84 */
85struct nfsctl_arg {
86 int ca_version; /* safeguard */
87 union {
88 struct nfsctl_svc u_svc;
89 struct nfsctl_client u_client;
90 struct nfsctl_export u_export;
91 struct nfsctl_fdparm u_getfd;
92 struct nfsctl_fsparm u_getfs;
93 /*
94 * The following dummy member is needed to preserve binary compatibility
95 * on platforms where alignof(void*)>alignof(int). It's needed because
96 * this union used to contain a member (u_umap) which contained a
97 * pointer.
98 */
99 void *u_ptr;
100 } u;
101#define ca_svc u.u_svc
102#define ca_client u.u_client
103#define ca_export u.u_export
104#define ca_getfd u.u_getfd
105#define ca_getfs u.u_getfs
106};
107
108union nfsctl_res {
109 __u8 cr_getfh[NFS_FHSIZE];
110 struct knfsd_fh cr_getfs;
111};
112
113#ifdef __KERNEL__
114/*
115 * Kernel syscall implementation.
116 */
117extern int exp_addclient(struct nfsctl_client *ncp);
118extern int exp_delclient(struct nfsctl_client *ncp);
119extern int exp_export(struct nfsctl_export *nxp);
120extern int exp_unexport(struct nfsctl_export *nxp);
121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]122#endif /* __KERNEL__ */
123
124#endif /* NFSD_SYSCALL_H */