[deliverable/linux.git] / include / linux / nfsd / syscall.h

/*
 * include/linux/nfsd/syscall.h
 *
 * This file holds all declarations for the knfsd syscall interface.
 *
 * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
 */

#ifndef NFSD_SYSCALL_H
#define NFSD_SYSCALL_H

#include <asm/types.h>
#ifdef __KERNEL__
# include <linux/types.h>
# include <linux/in.h>
#endif 
#include <linux/posix_types.h>
#include <linux/nfsd/const.h>
#include <linux/nfsd/export.h>
#include <linux/nfsd/nfsfh.h>

/*
 * 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. DISCARDED */
/*#define NFSCTL_GETFH		6	/ * get an fh by ino DISCARDED */
#define NFSCTL_GETFD		7	/* get an fh by path (used by mountd) */
#define	NFSCTL_GETFS		8	/* get an fh by path with max FH len */

/* 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];
};

/* EXPORT/UNEXPORT */
struct nfsctl_export {
	char			ex_client[NFSCLNT_IDMAX+1];
	char			ex_path[NFS_MAXPATHLEN+1];
	__kernel_old_dev_t	ex_dev;
	__kernel_ino_t		ex_ino;
	int			ex_flags;
	__kernel_uid_t		ex_anon_uid;
	__kernel_gid_t		ex_anon_gid;
};

/* 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_fdparm	u_getfd;
		struct nfsctl_fsparm	u_getfs;
		/*
		 * The following dummy member is needed to preserve binary compatibility
		 * on platforms where alignof(void*)>alignof(int).  It's needed because
		 * this union used to contain a member (u_umap) which contained a
		 * pointer.
		 */
		void *u_ptr;
	} u;
#define ca_svc		u.u_svc
#define ca_client	u.u_client
#define ca_export	u.u_export
#define ca_getfd	u.u_getfd
#define	ca_getfs	u.u_getfs
};

union nfsctl_res {
	__u8			cr_getfh[NFS_FHSIZE];
	struct knfsd_fh		cr_getfs;
};

#ifdef __KERNEL__
/*
 * Kernel syscall implementation.
 */
extern int		exp_addclient(struct nfsctl_client *ncp);
extern int		exp_delclient(struct nfsctl_client *ncp);
extern int		exp_export(struct nfsctl_export *nxp);
extern int		exp_unexport(struct nfsctl_export *nxp);

#endif /* __KERNEL__ */

#endif /* NFSD_SYSCALL_H */
Commit	Line	Data
1da177e4 LT	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__
1da177e4 LT	14	# include <linux/types.h>
	15	# include <linux/in.h>
	16	#endif
	17	#include <linux/posix_types.h>
	18	#include <linux/nfsd/const.h>
	19	#include <linux/nfsd/export.h>
	20	#include <linux/nfsd/nfsfh.h>
1da177e4 LT	21
	22	/*
	23	* Version of the syscall interface
	24	*/
	25	#define NFSCTL_VERSION 0x0201
	26
	27	/*
	28	* These are the commands understood by nfsctl().
	29	*/
	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 */
	39
	40	/* SVC */
	41	struct nfsctl_svc {
	42	unsigned short svc_port;
	43	int svc_nthreads;
	44	};
	45
	46	/* ADDCLIENT/DELCLIENT */
	47	struct nfsctl_client {
	48	char cl_ident[NFSCLNT_IDMAX+1];
	49	int cl_naddr;
	50	struct in_addr cl_addrlist[NFSCLNT_ADDRMAX];
	51	int cl_fhkeytype;
	52	int cl_fhkeylen;
	53	unsigned char cl_fhkey[NFSCLNT_KEYMAX];
	54	};
	55
	56	/* EXPORT/UNEXPORT */
	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;
	62	int ex_flags;
	63	__kernel_uid_t ex_anon_uid;
	64	__kernel_gid_t ex_anon_gid;
	65	};
	66
	67	/* GETFD */
	68	struct nfsctl_fdparm {
	69	struct sockaddr gd_addr;
	70	char gd_path[NFS_MAXPATHLEN+1];
	71	int gd_version;
	72	};
	73
	74	/* GETFS - GET Filehandle with Size */
	75	struct nfsctl_fsparm {
	76	struct sockaddr gd_addr;
	77	char gd_path[NFS_MAXPATHLEN+1];
	78	int gd_maxlen;
	79	};
	80
	81	/*
	82	* This is the argument union.
	83	*/
	84	struct nfsctl_arg {
85	int ca_version; /* safeguard */
86	union {
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;
92	/*
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
96	* pointer.
97	*/
98	void *u_ptr;
99	} u;
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
105	};
106
107	union nfsctl_res {
108	__u8 cr_getfh[NFS_FHSIZE];
109	struct knfsd_fh cr_getfs;
110	};
111
112	#ifdef __KERNEL__
113	/*
114	* Kernel syscall implementation.
115	*/
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);
120
121	#endif /* __KERNEL__ */
122
123	#endif /* NFSD_SYSCALL_H */