2 * include/linux/nfsd/syscall.h
4 * This file holds all declarations for the knfsd syscall interface.
6 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
10 #define NFSD_SYSCALL_H
12 #include <asm/types.h>
14 # include <linux/types.h>
15 # include <linux/in.h>
17 #include <linux/posix_types.h>
18 #include <linux/nfsd/const.h>
19 #include <linux/nfsd/export.h>
20 #include <linux/nfsd/nfsfh.h>
23 * Version of the syscall interface
25 #define NFSCTL_VERSION 0x0201
28 * These are the commands understood by nfsctl().
30 #define NFSCTL_SVC 0 /* This is a server process. */
31 #define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */
32 #define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */
33 #define NFSCTL_EXPORT 3 /* export a file system. */
34 #define NFSCTL_UNEXPORT 4 /* unexport a file system. */
35 /*#define NFSCTL_UGIDUPDATE 5 / * update a client's uid/gid map. DISCARDED */
36 /*#define NFSCTL_GETFH 6 / * get an fh by ino DISCARDED */
37 #define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */
38 #define NFSCTL_GETFS 8 /* get an fh by path with max FH len */
42 unsigned short svc_port;
46 /* ADDCLIENT/DELCLIENT */
47 struct nfsctl_client {
48 char cl_ident[NFSCLNT_IDMAX+1];
50 struct in_addr cl_addrlist[NFSCLNT_ADDRMAX];
53 unsigned char cl_fhkey[NFSCLNT_KEYMAX];
57 struct nfsctl_export {
58 char ex_client[NFSCLNT_IDMAX+1];
59 char ex_path[NFS_MAXPATHLEN+1];
60 __kernel_old_dev_t ex_dev;
61 __kernel_ino_t ex_ino;
63 __kernel_uid_t ex_anon_uid;
64 __kernel_gid_t ex_anon_gid;
68 struct nfsctl_fdparm {
69 struct sockaddr gd_addr;
70 char gd_path[NFS_MAXPATHLEN+1];
74 /* GETFS - GET Filehandle with Size */
75 struct nfsctl_fsparm {
76 struct sockaddr gd_addr;
77 char gd_path[NFS_MAXPATHLEN+1];
82 * This is the argument union.
85 int ca_version; /* safeguard */
87 struct nfsctl_svc u_svc;
88 struct nfsctl_client u_client;
89 struct nfsctl_export u_export;
90 struct nfsctl_fdparm u_getfd;
91 struct nfsctl_fsparm u_getfs;
93 * The following dummy member is needed to preserve binary compatibility
94 * on platforms where alignof(void*)>alignof(int). It's needed because
95 * this union used to contain a member (u_umap) which contained a
100 #define ca_svc u.u_svc
101 #define ca_client u.u_client
102 #define ca_export u.u_export
103 #define ca_getfd u.u_getfd
104 #define ca_getfs u.u_getfs
108 __u8 cr_getfh[NFS_FHSIZE];
109 struct knfsd_fh cr_getfs;
114 * Kernel syscall implementation.
116 extern int exp_addclient(struct nfsctl_client *ncp);
117 extern int exp_delclient(struct nfsctl_client *ncp);
118 extern int exp_export(struct nfsctl_export *nxp);
119 extern int exp_unexport(struct nfsctl_export *nxp);
121 #endif /* __KERNEL__ */
123 #endif /* NFSD_SYSCALL_H */