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

/*
 * linux/include/linux/sunrpc/svcsock.h
 *
 * RPC server socket I/O.
 *
 * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
 */

#ifndef SUNRPC_SVCSOCK_H
#define SUNRPC_SVCSOCK_H

#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svc_xprt.h>

/*
 * RPC server socket.
 */
struct svc_sock {
	struct svc_xprt		sk_xprt;
	struct socket *		sk_sock;	/* berkeley socket layer */
	struct sock *		sk_sk;		/* INET layer */

	/* We keep the old state_change and data_ready CB's here */
	void			(*sk_ostate)(struct sock *);
	void			(*sk_odata)(struct sock *);
	void			(*sk_owspace)(struct sock *);

	/* private TCP part */
	/* On-the-wire fragment header: */
	__be32			sk_reclen;
	/* As we receive a record, this includes the length received so
	 * far (including the fragment header): */
	u32			sk_tcplen;
	/* Total length of the data (not including fragment headers)
	 * received so far in the fragments making up this rpc: */
	u32			sk_datalen;

	struct page *		sk_pages[RPCSVC_MAXPAGES];	/* received data */
};

static inline u32 svc_sock_reclen(struct svc_sock *svsk)
{
	return ntohl(svsk->sk_reclen) & RPC_FRAGMENT_SIZE_MASK;
}

static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
{
	return ntohl(svsk->sk_reclen) & RPC_LAST_STREAM_FRAGMENT;
}

/*
 * Function prototypes.
 */
void		svc_close_net(struct svc_serv *, struct net *);
int		svc_recv(struct svc_rqst *, long);
int		svc_send(struct svc_rqst *);
void		svc_drop(struct svc_rqst *);
void		svc_sock_update_bufs(struct svc_serv *serv);
bool		svc_alien_sock(struct net *net, int fd);
int		svc_addsock(struct svc_serv *serv, const int fd,
					char *name_return, const size_t len);
void		svc_init_xprt_sock(void);
void		svc_cleanup_xprt_sock(void);
struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
void		svc_sock_destroy(struct svc_xprt *);

/*
 * svc_makesock socket characteristics
 */
#define SVC_SOCK_DEFAULTS	(0U)
#define SVC_SOCK_ANONYMOUS	(1U << 0)	/* don't register with pmap */
#define SVC_SOCK_TEMPORARY	(1U << 1)	/* flag socket as temporary */

#endif /* SUNRPC_SVCSOCK_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/linux/sunrpc/svcsock.h
	3	*
	4	* RPC server socket I/O.
	5	*
	6	* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
	7	*/
	8
	9	#ifndef SUNRPC_SVCSOCK_H
	10	#define SUNRPC_SVCSOCK_H
	11
	12	#include <linux/sunrpc/svc.h>
360d8738	13	#include <linux/sunrpc/svc_xprt.h>
1da177e4 LT	14
	15	/*
	16	* RPC server socket.
	17	*/
	18	struct svc_sock {
360d8738	19	struct svc_xprt sk_xprt;
1da177e4 LT	20	struct socket * sk_sock; /* berkeley socket layer */
	21	struct sock * sk_sk; /* INET layer */
	22
1da177e4 LT	23	/* We keep the old state_change and data_ready CB's here */
1da177e4 LT	24	void (sk_ostate)(struct sock );
676d2369	25	void (sk_odata)(struct sock );
1da177e4 LT	26	void (sk_owspace)(struct sock );
	27
	28	/* private TCP part */
8af345f5 BF	29	/* On-the-wire fragment header: */
	30	__be32 sk_reclen;
	31	/* As we receive a record, this includes the length received so
	32	* far (including the fragment header): */
	33	u32 sk_tcplen;
	34	/* Total length of the data (not including fragment headers)
	35	* received so far in the fragments making up this rpc: */
	36	u32 sk_datalen;
	37
31d68ef6	38	struct page * sk_pages[RPCSVC_MAXPAGES]; /* received data */
1da177e4 LT	39	};
1da177e4 LT	40
cc248d4b BF	41	static inline u32 svc_sock_reclen(struct svc_sock *svsk)
	42	{
	43	return ntohl(svsk->sk_reclen) & RPC_FRAGMENT_SIZE_MASK;
	44	}
	45
	46	static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
	47	{
	48	return ntohl(svsk->sk_reclen) & RPC_LAST_STREAM_FRAGMENT;
	49	}
	50
1da177e4 LT	51	/*
	52	* Function prototypes.
	53	*/
7b147f1f	54	void svc_close_net(struct svc_serv , struct net );
6fb2b47f	55	int svc_recv(struct svc_rqst *, long);
1da177e4 LT	56	int svc_send(struct svc_rqst *);
	57	void svc_drop(struct svc_rqst *);
	58	void svc_sock_update_bufs(struct svc_serv *serv);
30646394	59	bool svc_alien_sock(struct net *net, int fd);
bfba9ab4 CL	60	int svc_addsock(struct svc_serv *serv, const int fd,
bfba9ab4 CL	61	char *name_return, const size_t len);
360d8738 TT	62	void svc_init_xprt_sock(void);
360d8738 TT	63	void svc_cleanup_xprt_sock(void);
7652e5a0 BH	64	struct svc_xprt svc_sock_create(struct svc_serv serv, int prot);
7652e5a0 BH	65	void svc_sock_destroy(struct svc_xprt *);
1da177e4	66
6b174337 CL	67	/*
	68	* svc_makesock socket characteristics
	69	*/
	70	#define SVC_SOCK_DEFAULTS (0U)
	71	#define SVC_SOCK_ANONYMOUS (1U << 0) /* don't register with pmap */
	72	#define SVC_SOCK_TEMPORARY (1U << 1) /* flag socket as temporary */
	73
1da177e4	74	#endif /* SUNRPC_SVCSOCK_H */