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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
#ifndef _NFS_NFS_H
#define _NFS_NFS_H
#include <linux/posix_types.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <rpcsvc/nfs_prot.h>
#include <nfs/export.h>
#define NFS3_FHSIZE 64
#define NFS_FHSIZE 32
#define NFSD_MINVERS 2
#define NFSD_MAXVERS 4
struct nfs_fh_len {
int fh_size;
u_int8_t fh_handle[NFS3_FHSIZE];
};
struct nfs_fh_old {
u_int8_t fh_handle[NFS_FHSIZE];
};
/*
* 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. */
#define NFSCTL_GETFH 6 /* get an fh (used by mountd) */
#define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */
#define NFSCTL_GETFS 8 /* get an fh by path with max size (used by mountd) */
/* Above this is for lockd. */
#define NFSCTL_LOCKD 0x10000
#define LOCKDCTL_SVC NFSCTL_LOCKD
#define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << ((_v) - 1)))
#define NFSCTL_UDPUNSET(_cltbits) ((_cltbits) &= ~(1 << (17 - 1)))
#define NFSCTL_TCPUNSET(_cltbits) ((_cltbits) &= ~(1 << (18 - 1)))
#define NFSCTL_VERISSET(_cltbits, _v) ((_cltbits) & (1 << ((_v) - 1)))
#define NFSCTL_UDPISSET(_cltbits) ((_cltbits) & (1 << (17 - 1)))
#define NFSCTL_TCPISSET(_cltbits) ((_cltbits) & (1 << (18 - 1)))
#define NFSCTL_ALLBITS (~0)
/* 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];
};
/* IN 2.5.6? __kernel_dev_t changed size, and __kernel_old_dev_t was left
* with the old value. We need to make sure we use the right one.
*
*/
#include <linux/version.h>
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,70)
# define __nfsd_dev_t __kernel_old_dev_t
#else
# define __nfsd_dev_t __kernel_dev_t
#endif
/* EXPORT/UNEXPORT */
struct nfsctl_export {
char ex_client[NFSCLNT_IDMAX+1];
char ex_path[NFS_MAXPATHLEN+1];
__nfsd_dev_t ex_dev;
__kernel_ino_t ex_ino;
int ex_flags;
__kernel_uid_t ex_anon_uid;
__kernel_gid_t ex_anon_gid;
};
/* UGIDUPDATE */
struct nfsctl_uidmap {
char * ug_ident;
__kernel_uid_t ug_uidbase;
int ug_uidlen;
__kernel_uid_t * ug_udimap;
__kernel_gid_t ug_gidbase;
int ug_gidlen;
__kernel_gid_t * ug_gdimap;
};
/* GETFH */
struct nfsctl_fhparm {
struct sockaddr gf_addr;
__nfsd_dev_t gf_dev;
__kernel_ino_t gf_ino;
int gf_version;
};
/* 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_uidmap u_umap;
struct nfsctl_fhparm u_getfh;
struct nfsctl_fdparm u_getfd;
struct nfsctl_fsparm u_getfs;
} u;
#define ca_svc u.u_svc
#define ca_client u.u_client
#define ca_export u.u_export
#define ca_umap u.u_umap
#define ca_getfh u.u_getfh
#define ca_getfd u.u_getfd
#define ca_getfs u.u_getfs
#define ca_authd u.u_authd
};
union nfsctl_res {
struct nfs_fh_old cr_getfh;
struct nfs_fh_len cr_getfs;
};
#endif /* _NFS_NFS_H */
|
