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