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 #include <linux/sunrpc/svc_xprt.h>
  14
  15 /*
  16  * RPC server socket.
  17  */
  18 struct svc_sock {
  19         struct svc_xprt         sk_xprt;
  20         struct socket *         sk_sock;        /* berkeley socket layer */
  21         struct sock *           sk_sk;          /* INET layer */
  22
  23         atomic_t                sk_reserved;    /* space on outq that is reserved */
  24
  25         spinlock_t              sk_lock;        /* protects sk_deferred and
  26                                                  * sk_info_authunix */
  27         struct list_head        sk_deferred;    /* deferred requests that need to
  28                                                  * be revisted */
  29         struct mutex            sk_mutex;       /* to serialize sending data */
  30
  31         /* We keep the old state_change and data_ready CB's here */
  32         void                    (*sk_ostate)(struct sock *);
  33         void                    (*sk_odata)(struct sock *, int bytes);
  34         void                    (*sk_owspace)(struct sock *);
  35
  36         /* private TCP part */
  37         int                     sk_reclen;      /* length of record */
  38         int                     sk_tcplen;      /* current read length */
  39         time_t                  sk_lastrecv;    /* time of last received request */
  40
  41         /* cache of various info for TCP sockets */
  42         void                    *sk_info_authunix;
  43
  44         struct sockaddr_storage sk_local;       /* local address */
  45         struct sockaddr_storage sk_remote;      /* remote peer's address */
  46         int                     sk_remotelen;   /* length of address */
  47 };
  48
  49 /*
  50  * Function prototypes.
  51  */
  52 void            svc_close_all(struct list_head *);
  53 int             svc_recv(struct svc_rqst *, long);
  54 int             svc_send(struct svc_rqst *);
  55 void            svc_drop(struct svc_rqst *);
  56 void            svc_sock_update_bufs(struct svc_serv *serv);
  57 int             svc_sock_names(char *buf, struct svc_serv *serv, char *toclose);
  58 int             svc_addsock(struct svc_serv *serv,
  59                             int fd,
  60                             char *name_return,
  61                             int *proto);
  62 void            svc_init_xprt_sock(void);
  63 void            svc_cleanup_xprt_sock(void);
  64
  65 /*
  66  * svc_makesock socket characteristics
  67  */
  68 #define SVC_SOCK_DEFAULTS       (0U)
  69 #define SVC_SOCK_ANONYMOUS      (1U << 0)       /* don't register with pmap */
  70 #define SVC_SOCK_TEMPORARY      (1U << 1)       /* flag socket as temporary */
  71
  72 #endif /* SUNRPC_SVCSOCK_H */