Release 4.12 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;
}

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

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/*
 * 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 */
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Directory: include/linux/sunrpc

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