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