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/*
* linux/include/linux/sunrpc/clnt.h
*
* Declarations for the high-level RPC client interface
*
* Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _LINUX_SUNRPC_CLNT_H
#define _LINUX_SUNRPC_CLNT_H
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/xprt.h>
#include <linux/sunrpc/auth.h>
#include <linux/sunrpc/stats.h>
#include <linux/sunrpc/xdr.h>
/*
* This defines an RPC port mapping
*/
struct rpc_portmap {
__u32 pm_prog;
__u32 pm_vers;
__u32 pm_prot;
__u16 pm_port;
};
/*
* The high-level client handle
*/
struct rpc_clnt {
atomic_t cl_users; /* number of references */
struct rpc_xprt * cl_xprt; /* transport */
struct rpc_procinfo * cl_procinfo; /* procedure info */
u32 cl_maxproc; /* max procedure number */
char * cl_server; /* server machine name */
char * cl_protname; /* protocol name */
struct rpc_auth * cl_auth; /* authenticator */
struct rpc_stat * cl_stats; /* statistics */
unsigned int cl_softrtry : 1,/* soft timeouts */
cl_intr : 1,/* interruptible */
cl_chatty : 1,/* be verbose */
cl_autobind : 1,/* use getport() */
cl_binding : 1,/* doing a getport() */
cl_droppriv : 1,/* enable NFS suid hack */
cl_oneshot : 1,/* dispose after use */
cl_dead : 1;/* abandoned */
unsigned int cl_flags; /* misc client flags */
unsigned long cl_hardmax; /* max hard timeout */
struct rpc_portmap cl_pmap; /* port mapping */
struct rpc_wait_queue cl_bindwait; /* waiting on getport() */
int cl_nodelen; /* nodename length */
char cl_nodename[UNX_MAXNODENAME];
};
#define cl_timeout cl_xprt->timeout
#define cl_prog cl_pmap.pm_prog
#define cl_vers cl_pmap.pm_vers
#define cl_port cl_pmap.pm_port
#define cl_prot cl_pmap.pm_prot
/*
* General RPC program info
*/
#define RPC_MAXVERSION 4
struct rpc_program {
char * name; /* protocol name */
u32 number; /* program number */
unsigned int nrvers; /* number of versions */
struct rpc_version ** version; /* version array */
struct rpc_stat * stats; /* statistics */
};
struct rpc_version {
u32 number; /* version number */
unsigned int nrprocs; /* number of procs */
struct rpc_procinfo * procs; /* procedure array */
};
/*
* Procedure information
*/
struct rpc_procinfo {
char * p_procname; /* procedure name */
kxdrproc_t p_encode; /* XDR encode function */
kxdrproc_t p_decode; /* XDR decode function */
unsigned int p_bufsiz; /* req. buffer size */
unsigned int p_count; /* call count */
};
#define rpcproc_bufsiz(clnt, proc) ((clnt)->cl_procinfo[proc].p_bufsiz)
#define rpcproc_encode(clnt, proc) ((clnt)->cl_procinfo[proc].p_encode)
#define rpcproc_decode(clnt, proc) ((clnt)->cl_procinfo[proc].p_decode)
#define rpcproc_name(clnt, proc) ((clnt)->cl_procinfo[proc].p_procname)
#define rpcproc_count(clnt, proc) ((clnt)->cl_procinfo[proc].p_count)
#define RPC_CONGESTED(clnt) (RPCXPRT_CONGESTED((clnt)->cl_xprt))
#define RPC_PEERADDR(clnt) (&(clnt)->cl_xprt->addr)
#ifdef __KERNEL__
struct rpc_clnt *rpc_create_client(struct rpc_xprt *xprt, char *servname,
struct rpc_program *info,
u32 version, int authflavor);
int rpc_shutdown_client(struct rpc_clnt *);
int rpc_destroy_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
void rpc_getport(struct rpc_task *, struct rpc_clnt *);
int rpc_register(u32, u32, int, unsigned short, int *);
void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
int rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
int flags, rpc_action callback, void *clntdata);
int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg,
int flags);
void rpc_restart_call(struct rpc_task *);
void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset);
void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset);
static __inline__
int rpc_call(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
{
struct rpc_message msg = { proc, argp, resp, NULL };
return rpc_call_sync(clnt, &msg, flags);
}
static __inline__ void
rpc_set_timeout(struct rpc_clnt *clnt, unsigned int retr, unsigned long incr)
{
xprt_set_timeout(&clnt->cl_timeout, retr, incr);
}
extern void rpciod_tcp_dispatcher(void);
extern void rpciod_wake_up(void);
/*
* Helper function for NFSroot support
*/
int rpc_getport_external(struct sockaddr_in *, __u32, __u32, int);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */
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