include/linux/sunrpc/svcsock.h

   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_DEAD         6                       /* socket closed */
  32 #define SK_CHNGBUF      7                       /* need to change snd/rcv buffer sizes */
  33 #define SK_DEFERRED     8                       /* request on sk_deferred */
  34
  35         int                     sk_reserved;    /* space on outq that is reserved */
  36
  37         struct list_head        sk_deferred;    /* deferred requests that need to
  38                                                  * be revisted */
  39         struct mutex            sk_mutex;       /* to serialize sending data */
  40
  41         int                     (*sk_recvfrom)(struct svc_rqst *rqstp);
  42         int                     (*sk_sendto)(struct svc_rqst *rqstp);
  43
  44         /* We keep the old state_change and data_ready CB's here */
  45         void                    (*sk_ostate)(struct sock *);
  46         void                    (*sk_odata)(struct sock *, int bytes);
  47         void                    (*sk_owspace)(struct sock *);
  48
  49         /* private TCP part */
  50         int                     sk_reclen;      /* length of record */
  51         int                     sk_tcplen;      /* current read length */
  52         time_t                  sk_lastrecv;    /* time of last received request */
  53 };
  54
  55 /*
  56  * Function prototypes.
  57  */
  58 int             svc_makesock(struct svc_serv *, int, unsigned short);
  59 void            svc_delete_socket(struct svc_sock *);
  60 int             svc_recv(struct svc_serv *, struct svc_rqst *, long);
  61 int             svc_send(struct svc_rqst *);
  62 void            svc_drop(struct svc_rqst *);
  63 void            svc_sock_update_bufs(struct svc_serv *serv);
  64 int             svc_sock_names(char *buf, struct svc_serv *serv, char *toclose);
  65 int             svc_addsock(struct svc_serv *serv,
  66                             int fd,
  67                             char *name_return,
  68                             int *proto);
  69
  70 #endif /* SUNRPC_SVCSOCK_H */