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>
13 
14 /*
15  * RPC server socket.
16  */
17 struct svc_sock {
18 	struct list_head	sk_ready;	/* list of ready sockets */
19 	struct list_head	sk_list;	/* list of all sockets */
20 	struct socket *		sk_sock;	/* berkeley socket layer */
21 	struct sock *		sk_sk;		/* INET layer */
22 
23 	struct svc_serv *	sk_server;	/* service for this socket */
24 	unsigned int		sk_inuse;	/* use count */
25 	unsigned long		sk_flags;
26 #define	SK_BUSY		0			/* enqueued/receiving */
27 #define	SK_CONN		1			/* conn pending */
28 #define	SK_CLOSE	2			/* dead or dying */
29 #define	SK_DATA		3			/* data pending */
30 #define	SK_TEMP		4			/* temp (TCP) socket */
31 #define	SK_QUED		5			/* on serv->sk_sockets */
32 #define	SK_DEAD		6			/* socket closed */
33 #define	SK_CHNGBUF	7			/* need to change snd/rcv buffer sizes */
34 
35 	int			sk_reserved;	/* space on outq that is reserved */
36 
37 	int			(*sk_recvfrom)(struct svc_rqst *rqstp);
38 	int			(*sk_sendto)(struct svc_rqst *rqstp);
39 
40 	/* We keep the old state_change and data_ready CB's here */
41 	void			(*sk_ostate)(struct sock *);
42 	void			(*sk_odata)(struct sock *, int bytes);
43 	void			(*sk_owspace)(struct sock *);
44 
45 	/* private TCP part */
46 	int			sk_reclen;	/* length of record */
47 	int			sk_tcplen;	/* current read length */
48 	time_t			sk_lastrecv;	/* time of last received request */
49 };
50 
51 /*
52  * Function prototypes.
53  */
54 int		svc_makesock(struct svc_serv *, int, unsigned short);
55 void		svc_delete_socket(struct svc_sock *);
56 int		svc_recv(struct svc_serv *, struct svc_rqst *, long);
57 int		svc_send(struct svc_rqst *);
58 void		svc_drop(struct svc_rqst *);
59 void		svc_sock_update_bufs(struct svc_serv *serv);
60 
61 #endif /* SUNRPC_SVCSOCK_H */
62