Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
423 | giacomo | 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__ |
||
14 | # include <linux/config.h> |
||
15 | # include <linux/types.h> |
||
16 | # include <linux/in.h> |
||
17 | #endif |
||
18 | #include <linux/posix_types.h> |
||
19 | #include <linux/nfsd/const.h> |
||
20 | #include <linux/nfsd/export.h> |
||
21 | #include <linux/nfsd/nfsfh.h> |
||
22 | #include <linux/nfsd/auth.h> |
||
23 | |||
24 | /* |
||
25 | * Version of the syscall interface |
||
26 | */ |
||
27 | #define NFSCTL_VERSION 0x0201 |
||
28 | |||
29 | /* |
||
30 | * These are the commands understood by nfsctl(). |
||
31 | */ |
||
32 | #define NFSCTL_SVC 0 /* This is a server process. */ |
||
33 | #define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */ |
||
34 | #define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */ |
||
35 | #define NFSCTL_EXPORT 3 /* export a file system. */ |
||
36 | #define NFSCTL_UNEXPORT 4 /* unexport a file system. */ |
||
37 | /*#define NFSCTL_UGIDUPDATE 5 / * update a client's uid/gid map. DISCARDED */ |
||
38 | /*#define NFSCTL_GETFH 6 / * get an fh by ino DISCARDED */ |
||
39 | #define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */ |
||
40 | #define NFSCTL_GETFS 8 /* get an fh by path with max FH len */ |
||
41 | |||
42 | /* SVC */ |
||
43 | struct nfsctl_svc { |
||
44 | unsigned short svc_port; |
||
45 | int svc_nthreads; |
||
46 | }; |
||
47 | |||
48 | /* ADDCLIENT/DELCLIENT */ |
||
49 | struct nfsctl_client { |
||
50 | char cl_ident[NFSCLNT_IDMAX+1]; |
||
51 | int cl_naddr; |
||
52 | struct in_addr cl_addrlist[NFSCLNT_ADDRMAX]; |
||
53 | int cl_fhkeytype; |
||
54 | int cl_fhkeylen; |
||
55 | unsigned char cl_fhkey[NFSCLNT_KEYMAX]; |
||
56 | }; |
||
57 | |||
58 | /* EXPORT/UNEXPORT */ |
||
59 | struct nfsctl_export { |
||
60 | char ex_client[NFSCLNT_IDMAX+1]; |
||
61 | char ex_path[NFS_MAXPATHLEN+1]; |
||
62 | __kernel_old_dev_t ex_dev; |
||
63 | __kernel_ino_t ex_ino; |
||
64 | int ex_flags; |
||
65 | __kernel_uid_t ex_anon_uid; |
||
66 | __kernel_gid_t ex_anon_gid; |
||
67 | }; |
||
68 | |||
69 | /* GETFD */ |
||
70 | struct nfsctl_fdparm { |
||
71 | struct sockaddr gd_addr; |
||
72 | char gd_path[NFS_MAXPATHLEN+1]; |
||
73 | int gd_version; |
||
74 | }; |
||
75 | |||
76 | /* GETFS - GET Filehandle with Size */ |
||
77 | struct nfsctl_fsparm { |
||
78 | struct sockaddr gd_addr; |
||
79 | char gd_path[NFS_MAXPATHLEN+1]; |
||
80 | int gd_maxlen; |
||
81 | }; |
||
82 | |||
83 | /* |
||
84 | * This is the argument union. |
||
85 | */ |
||
86 | struct nfsctl_arg { |
||
87 | int ca_version; /* safeguard */ |
||
88 | union { |
||
89 | struct nfsctl_svc u_svc; |
||
90 | struct nfsctl_client u_client; |
||
91 | struct nfsctl_export u_export; |
||
92 | struct nfsctl_fdparm u_getfd; |
||
93 | struct nfsctl_fsparm u_getfs; |
||
94 | /* |
||
95 | * The following dummy member is needed to preserve binary compatibility |
||
96 | * on platforms where alignof(void*)>alignof(int). It's needed because |
||
97 | * this union used to contain a member (u_umap) which contained a |
||
98 | * pointer. |
||
99 | */ |
||
100 | void *u_ptr; |
||
101 | } u; |
||
102 | #define ca_svc u.u_svc |
||
103 | #define ca_client u.u_client |
||
104 | #define ca_export u.u_export |
||
105 | #define ca_getfd u.u_getfd |
||
106 | #define ca_getfs u.u_getfs |
||
107 | }; |
||
108 | |||
109 | union nfsctl_res { |
||
110 | __u8 cr_getfh[NFS_FHSIZE]; |
||
111 | struct knfsd_fh cr_getfs; |
||
112 | }; |
||
113 | |||
114 | #ifdef __KERNEL__ |
||
115 | /* |
||
116 | * Kernel syscall implementation. |
||
117 | */ |
||
118 | extern asmlinkage long sys_nfsservctl(int, struct nfsctl_arg __user *, void __user *); |
||
119 | extern int exp_addclient(struct nfsctl_client *ncp); |
||
120 | extern int exp_delclient(struct nfsctl_client *ncp); |
||
121 | extern int exp_export(struct nfsctl_export *nxp); |
||
122 | extern int exp_unexport(struct nfsctl_export *nxp); |
||
123 | |||
124 | #endif /* __KERNEL__ */ |
||
125 | |||
126 | #endif /* NFSD_SYSCALL_H */ |