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/config.h>
15 # include <linux/types.h>
16 # include <linux/in.h>
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>
25 * Version of the syscall interface
27 #define NFSCTL_VERSION 0x0201
30 * These are the commands understood by nfsctl().
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 */
43 * Macros used to set version and protocol
45 #define NFSCTL_VERSET(_cltbits, _v) ((_cltbits) |= (1 << ((_v) - 1)))
46 #define NFSCTL_VERUNSET(_cltbits, _v) ((_cltbits) &= ~(1 << ((_v) - 1)))
47 #define NFSCTL_VERISSET(_cltbits, _v) ((_cltbits) & (1 << ((_v) - 1)))
49 #define NFSCTL_UDPSET(_cltbits) ((_cltbits) |= (1 << (17 - 1)))
50 #define NFSCTL_UDPUNSET(_cltbits) ((_cltbits) &= ~(1 << (17 - 1)))
51 #define NFSCTL_UDPISSET(_cltbits) ((_cltbits) & (1 << (17 - 1)))
53 #define NFSCTL_TCPSET(_cltbits) ((_cltbits) |= (1 << (18 - 1)))
54 #define NFSCTL_TCPUNSET(_cltbits) ((_cltbits) &= ~(1 << (18 - 1)))
55 #define NFSCTL_TCPISSET(_cltbits) ((_cltbits) & (1 << (18 - 1)))
60 unsigned short svc_port;
64 /* ADDCLIENT/DELCLIENT */
65 struct nfsctl_client {
66 char cl_ident[NFSCLNT_IDMAX+1];
68 struct in_addr cl_addrlist[NFSCLNT_ADDRMAX];
71 unsigned char cl_fhkey[NFSCLNT_KEYMAX];
75 struct nfsctl_export {
76 char ex_client[NFSCLNT_IDMAX+1];
77 char ex_path[NFS_MAXPATHLEN+1];
78 __kernel_old_dev_t ex_dev;
79 __kernel_ino_t ex_ino;
81 __kernel_uid_t ex_anon_uid;
82 __kernel_gid_t ex_anon_gid;
86 struct nfsctl_fdparm {
87 struct sockaddr gd_addr;
88 char gd_path[NFS_MAXPATHLEN+1];
92 /* GETFS - GET Filehandle with Size */
93 struct nfsctl_fsparm {
94 struct sockaddr gd_addr;
95 char gd_path[NFS_MAXPATHLEN+1];
100 * This is the argument union.
103 int ca_version; /* safeguard */
105 struct nfsctl_svc u_svc;
106 struct nfsctl_client u_client;
107 struct nfsctl_export u_export;
108 struct nfsctl_fdparm u_getfd;
109 struct nfsctl_fsparm u_getfs;
111 * The following dummy member is needed to preserve binary compatibility
112 * on platforms where alignof(void*)>alignof(int). It's needed because
113 * this union used to contain a member (u_umap) which contained a
118 #define ca_svc u.u_svc
119 #define ca_client u.u_client
120 #define ca_export u.u_export
121 #define ca_getfd u.u_getfd
122 #define ca_getfs u.u_getfs
126 __u8 cr_getfh[NFS_FHSIZE];
127 struct knfsd_fh cr_getfs;
132 * Kernel syscall implementation.
134 extern int exp_addclient(struct nfsctl_client *ncp);
135 extern int exp_delclient(struct nfsctl_client *ncp);
136 extern int exp_export(struct nfsctl_export *nxp);
137 extern int exp_unexport(struct nfsctl_export *nxp);
139 extern int nfsd_port;
140 extern unsigned int nfsd_versbits, nfsd_portbits;
142 #endif /* __KERNEL__ */
144 #endif /* NFSD_SYSCALL_H */