[deliverable/linux.git] / include / linux / sunrpc / clnt.h

/*
 *  linux/include/linux/sunrpc/clnt.h
 *
 *  Declarations for the high-level RPC client interface
 *
 *  Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de>
 */

#ifndef _LINUX_SUNRPC_CLNT_H
#define _LINUX_SUNRPC_CLNT_H

#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/auth.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/xdr.h>
#include <linux/sunrpc/timer.h>
#include <asm/signal.h>

struct rpc_inode;

/*
 * The high-level client handle
 */
struct rpc_clnt {
	atomic_t		cl_count;	/* Number of clones */
	atomic_t		cl_users;	/* number of references */
	struct rpc_xprt *	cl_xprt;	/* transport */
	struct rpc_procinfo *	cl_procinfo;	/* procedure info */
	u32			cl_prog,	/* RPC program number */
				cl_vers,	/* RPC version number */
				cl_maxproc;	/* max procedure number */

	char *			cl_server;	/* server machine name */
	char *			cl_protname;	/* protocol name */
	struct rpc_auth *	cl_auth;	/* authenticator */
	struct rpc_stat *	cl_stats;	/* per-program statistics */
	struct rpc_iostats *	cl_metrics;	/* per-client statistics */

	unsigned int		cl_softrtry : 1,/* soft timeouts */
				cl_intr     : 1,/* interruptible */
				cl_autobind : 1,/* use getport() */
				cl_oneshot  : 1,/* dispose after use */
				cl_dead     : 1;/* abandoned */

	struct rpc_rtt *	cl_rtt;		/* RTO estimator data */

	int			cl_nodelen;	/* nodename length */
	char 			cl_nodename[UNX_MAXNODENAME];
	char			cl_pathname[30];/* Path in rpc_pipe_fs */
	struct vfsmount *	cl_vfsmnt;
	struct dentry *		cl_dentry;	/* inode */
	struct rpc_clnt *	cl_parent;	/* Points to parent of clones */
	struct rpc_rtt		cl_rtt_default;
	char			cl_inline_name[32];
};

/*
 * General RPC program info
 */
#define RPC_MAXVERSION		4
struct rpc_program {
	char *			name;		/* protocol name */
	u32			number;		/* program number */
	unsigned int		nrvers;		/* number of versions */
	struct rpc_version **	version;	/* version array */
	struct rpc_stat *	stats;		/* statistics */
	char *			pipe_dir_name;	/* path to rpc_pipefs dir */
};

struct rpc_version {
	u32			number;		/* version number */
	unsigned int		nrprocs;	/* number of procs */
	struct rpc_procinfo *	procs;		/* procedure array */
};

/*
 * Procedure information
 */
struct rpc_procinfo {
	u32			p_proc;		/* RPC procedure number */
	kxdrproc_t		p_encode;	/* XDR encode function */
	kxdrproc_t		p_decode;	/* XDR decode function */
	unsigned int		p_bufsiz;	/* req. buffer size */
	unsigned int		p_count;	/* call count */
	unsigned int		p_timer;	/* Which RTT timer to use */
	u32			p_statidx;	/* Which procedure to account */
	char *			p_name;		/* name of procedure */
};

#define RPC_CONGESTED(clnt)	(RPCXPRT_CONGESTED((clnt)->cl_xprt))
#define RPC_PEERADDR(clnt)	(&(clnt)->cl_xprt->addr)

#ifdef __KERNEL__

struct rpc_clnt *rpc_create_client(struct rpc_xprt *xprt, char *servname,
				struct rpc_program *info,
				u32 version, rpc_authflavor_t authflavor);
struct rpc_clnt *rpc_new_client(struct rpc_xprt *xprt, char *servname,
				struct rpc_program *info,
				u32 version, rpc_authflavor_t authflavor);
struct rpc_clnt	*rpc_bind_new_program(struct rpc_clnt *,
				struct rpc_program *, int);
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
int		rpc_shutdown_client(struct rpc_clnt *);
int		rpc_destroy_client(struct rpc_clnt *);
void		rpc_release_client(struct rpc_clnt *);
void		rpc_getport(struct rpc_task *);
int		rpc_register(u32, u32, int, unsigned short, int *);

void		rpc_call_setup(struct rpc_task *, struct rpc_message *, int);

int		rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
			       int flags, const struct rpc_call_ops *tk_ops,
			       void *calldata);
int		rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg,
			      int flags);
void		rpc_restart_call(struct rpc_task *);
void		rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset);
void		rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset);
void		rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
size_t		rpc_max_payload(struct rpc_clnt *);
void		rpc_force_rebind(struct rpc_clnt *);
int		rpc_ping(struct rpc_clnt *clnt, int flags);

/*
 * Helper function for NFSroot support
 */
int		rpc_getport_external(struct sockaddr_in *, __u32, __u32, int);

#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/sunrpc/clnt.h
	3	*
	4	* Declarations for the high-level RPC client interface
	5	*
	6	* Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de>
	7	*/
	8
	9	#ifndef _LINUX_SUNRPC_CLNT_H
	10	#define _LINUX_SUNRPC_CLNT_H
	11
	12	#include <linux/sunrpc/msg_prot.h>
	13	#include <linux/sunrpc/sched.h>
	14	#include <linux/sunrpc/xprt.h>
	15	#include <linux/sunrpc/auth.h>
	16	#include <linux/sunrpc/stats.h>
	17	#include <linux/sunrpc/xdr.h>
	18	#include <linux/sunrpc/timer.h>
	19	#include <asm/signal.h>
	20
1da177e4 LT	21	struct rpc_inode;
	22
	23	/*
	24	* The high-level client handle
	25	*/
	26	struct rpc_clnt {
	27	atomic_t cl_count; /* Number of clones */
	28	atomic_t cl_users; /* number of references */
	29	struct rpc_xprt * cl_xprt; /* transport */
	30	struct rpc_procinfo * cl_procinfo; /* procedure info */
4a68179d CL	31	u32 cl_prog, /* RPC program number */
	32	cl_vers, /* RPC version number */
	33	cl_maxproc; /* max procedure number */
1da177e4 LT	34
	35	char * cl_server; /* server machine name */
	36	char * cl_protname; /* protocol name */
	37	struct rpc_auth * cl_auth; /* authenticator */
11c556b3 CL	38	struct rpc_stat * cl_stats; /* per-program statistics */
11c556b3 CL	39	struct rpc_iostats * cl_metrics; /* per-client statistics */
1da177e4 LT	40
	41	unsigned int cl_softrtry : 1,/* soft timeouts */
	42	cl_intr : 1,/* interruptible */
1da177e4 LT	43	cl_autobind : 1,/* use getport() */
	44	cl_oneshot : 1,/* dispose after use */
	45	cl_dead : 1;/* abandoned */
	46
	47	struct rpc_rtt * cl_rtt; /* RTO estimator data */
1da177e4 LT	48
	49	int cl_nodelen; /* nodename length */
	50	char cl_nodename[UNX_MAXNODENAME];
	51	char cl_pathname[30];/* Path in rpc_pipe_fs */
54281548	52	struct vfsmount * cl_vfsmnt;
1da177e4 LT	53	struct dentry * cl_dentry; /* inode */
	54	struct rpc_clnt * cl_parent; /* Points to parent of clones */
	55	struct rpc_rtt cl_rtt_default;
1da177e4 LT	56	char cl_inline_name[32];
1da177e4 LT	57	};
1da177e4 LT	58
	59	/*
	60	* General RPC program info
	61	*/
	62	#define RPC_MAXVERSION 4
	63	struct rpc_program {
	64	char * name; /* protocol name */
	65	u32 number; /* program number */
	66	unsigned int nrvers; /* number of versions */
	67	struct rpc_version ** version; /* version array */
	68	struct rpc_stat * stats; /* statistics */
	69	char * pipe_dir_name; /* path to rpc_pipefs dir */
	70	};
	71
	72	struct rpc_version {
	73	u32 number; /* version number */
	74	unsigned int nrprocs; /* number of procs */
	75	struct rpc_procinfo * procs; /* procedure array */
	76	};
	77
	78	/*
	79	* Procedure information
	80	*/
	81	struct rpc_procinfo {
	82	u32 p_proc; /* RPC procedure number */
	83	kxdrproc_t p_encode; /* XDR encode function */
	84	kxdrproc_t p_decode; /* XDR decode function */
	85	unsigned int p_bufsiz; /* req. buffer size */
	86	unsigned int p_count; /* call count */
	87	unsigned int p_timer; /* Which RTT timer to use */
cc0175c1 CL	88	u32 p_statidx; /* Which procedure to account */
cc0175c1 CL	89	char * p_name; /* name of procedure */
1da177e4 LT	90	};
	91
	92	#define RPC_CONGESTED(clnt) (RPCXPRT_CONGESTED((clnt)->cl_xprt))
	93	#define RPC_PEERADDR(clnt) (&(clnt)->cl_xprt->addr)
	94
	95	#ifdef __KERNEL__
	96
	97	struct rpc_clnt rpc_create_client(struct rpc_xprt xprt, char *servname,
	98	struct rpc_program *info,
	99	u32 version, rpc_authflavor_t authflavor);
5ee0ed7d TM	100	struct rpc_clnt rpc_new_client(struct rpc_xprt xprt, char *servname,
	101	struct rpc_program *info,
	102	u32 version, rpc_authflavor_t authflavor);
007e251f AG	103	struct rpc_clnt rpc_bind_new_program(struct rpc_clnt ,
007e251f AG	104	struct rpc_program *, int);
1da177e4 LT	105	struct rpc_clnt rpc_clone_client(struct rpc_clnt );
	106	int rpc_shutdown_client(struct rpc_clnt *);
	107	int rpc_destroy_client(struct rpc_clnt *);
	108	void rpc_release_client(struct rpc_clnt *);
bbf7c1dd	109	void rpc_getport(struct rpc_task *);
1da177e4 LT	110	int rpc_register(u32, u32, int, unsigned short, int *);
	111
	112	void rpc_call_setup(struct rpc_task , struct rpc_message , int);
	113
	114	int rpc_call_async(struct rpc_clnt clnt, struct rpc_message msg,
963d8fe5 TM	115	int flags, const struct rpc_call_ops *tk_ops,
963d8fe5 TM	116	void *calldata);
1da177e4 LT	117	int rpc_call_sync(struct rpc_clnt clnt, struct rpc_message msg,
	118	int flags);
	119	void rpc_restart_call(struct rpc_task *);
	120	void rpc_clnt_sigmask(struct rpc_clnt clnt, sigset_t oldset);
	121	void rpc_clnt_sigunmask(struct rpc_clnt clnt, sigset_t oldset);
	122	void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
	123	size_t rpc_max_payload(struct rpc_clnt *);
35f5a422	124	void rpc_force_rebind(struct rpc_clnt *);
5ee0ed7d	125	int rpc_ping(struct rpc_clnt *clnt, int flags);
1da177e4	126
1da177e4 LT	127	/*
	128	* Helper function for NFSroot support
	129	*/
	130	int rpc_getport_external(struct sockaddr_in *, __u32, __u32, int);
	131
	132	#endif /* __KERNEL__ */
	133	#endif /* _LINUX_SUNRPC_CLNT_H */