222 lines
7.1 KiB
C
222 lines
7.1 KiB
C
/*
|
|
* 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/types.h>
|
|
#include <linux/socket.h>
|
|
#include <linux/in.h>
|
|
#include <linux/in6.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>
|
|
#include <linux/sunrpc/timer.h>
|
|
#include <linux/sunrpc/rpc_pipe_fs.h>
|
|
#include <asm/signal.h>
|
|
#include <linux/path.h>
|
|
#include <net/ipv6.h>
|
|
#include <linux/sunrpc/xprtmultipath.h>
|
|
|
|
struct rpc_inode;
|
|
|
|
/*
|
|
* The high-level client handle
|
|
*/
|
|
struct rpc_clnt {
|
|
atomic_t cl_count; /* Number of references */
|
|
unsigned int cl_clid; /* client id */
|
|
struct list_head cl_clients; /* Global list of clients */
|
|
struct list_head cl_tasks; /* List of tasks */
|
|
spinlock_t cl_lock; /* spinlock */
|
|
struct rpc_xprt __rcu * cl_xprt; /* transport */
|
|
const struct rpc_procinfo *cl_procinfo; /* procedure info */
|
|
u32 cl_prog, /* RPC program number */
|
|
cl_vers, /* RPC version number */
|
|
cl_maxproc; /* max procedure number */
|
|
|
|
struct rpc_auth * cl_auth; /* authenticator */
|
|
struct rpc_stat * cl_stats; /* per-program statistics */
|
|
struct rpc_iostats * cl_metrics; /* per-client statistics */
|
|
|
|
unsigned int cl_softrtry : 1,/* soft timeouts */
|
|
cl_discrtry : 1,/* disconnect before retry */
|
|
cl_noretranstimeo: 1,/* No retransmit timeouts */
|
|
cl_autobind : 1,/* use getport() */
|
|
cl_chatty : 1;/* be verbose */
|
|
|
|
struct rpc_rtt * cl_rtt; /* RTO estimator data */
|
|
const struct rpc_timeout *cl_timeout; /* Timeout strategy */
|
|
|
|
atomic_t cl_swapper; /* swapfile count */
|
|
int cl_nodelen; /* nodename length */
|
|
char cl_nodename[UNX_MAXNODENAME+1];
|
|
struct rpc_pipe_dir_head cl_pipedir_objects;
|
|
struct rpc_clnt * cl_parent; /* Points to parent of clones */
|
|
struct rpc_rtt cl_rtt_default;
|
|
struct rpc_timeout cl_timeout_default;
|
|
const struct rpc_program *cl_program;
|
|
#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
|
|
struct dentry *cl_debugfs; /* debugfs directory */
|
|
#endif
|
|
struct rpc_xprt_iter cl_xpi;
|
|
};
|
|
|
|
/*
|
|
* General RPC program info
|
|
*/
|
|
#define RPC_MAXVERSION 4
|
|
struct rpc_program {
|
|
const char * name; /* protocol name */
|
|
u32 number; /* program number */
|
|
unsigned int nrvers; /* number of versions */
|
|
const struct rpc_version ** version; /* version array */
|
|
struct rpc_stat * stats; /* statistics */
|
|
const char * pipe_dir_name; /* path to rpc_pipefs dir */
|
|
};
|
|
|
|
struct rpc_version {
|
|
u32 number; /* version number */
|
|
unsigned int nrprocs; /* number of procs */
|
|
const struct rpc_procinfo *procs; /* procedure array */
|
|
unsigned int *counts; /* call counts */
|
|
};
|
|
|
|
/*
|
|
* Procedure information
|
|
*/
|
|
struct rpc_procinfo {
|
|
u32 p_proc; /* RPC procedure number */
|
|
kxdreproc_t p_encode; /* XDR encode function */
|
|
kxdrdproc_t p_decode; /* XDR decode function */
|
|
unsigned int p_arglen; /* argument hdr length (u32) */
|
|
unsigned int p_replen; /* reply hdr length (u32) */
|
|
unsigned int p_timer; /* Which RTT timer to use */
|
|
u32 p_statidx; /* Which procedure to account */
|
|
const char * p_name; /* name of procedure */
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct rpc_create_args {
|
|
struct net *net;
|
|
int protocol;
|
|
struct sockaddr *address;
|
|
size_t addrsize;
|
|
struct sockaddr *saddress;
|
|
const struct rpc_timeout *timeout;
|
|
const char *servername;
|
|
const char *nodename;
|
|
const struct rpc_program *program;
|
|
u32 prognumber; /* overrides program->number */
|
|
u32 version;
|
|
rpc_authflavor_t authflavor;
|
|
unsigned long flags;
|
|
char *client_name;
|
|
struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
|
|
};
|
|
|
|
struct rpc_add_xprt_test {
|
|
int (*add_xprt_test)(struct rpc_clnt *,
|
|
struct rpc_xprt *,
|
|
void *calldata);
|
|
void *data;
|
|
};
|
|
|
|
/* Values for "flags" field */
|
|
#define RPC_CLNT_CREATE_HARDRTRY (1UL << 0)
|
|
#define RPC_CLNT_CREATE_AUTOBIND (1UL << 2)
|
|
#define RPC_CLNT_CREATE_NONPRIVPORT (1UL << 3)
|
|
#define RPC_CLNT_CREATE_NOPING (1UL << 4)
|
|
#define RPC_CLNT_CREATE_DISCRTRY (1UL << 5)
|
|
#define RPC_CLNT_CREATE_QUIET (1UL << 6)
|
|
#define RPC_CLNT_CREATE_INFINITE_SLOTS (1UL << 7)
|
|
#define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT (1UL << 8)
|
|
#define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT (1UL << 9)
|
|
|
|
struct rpc_clnt *rpc_create(struct rpc_create_args *args);
|
|
struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
|
|
const struct rpc_program *, u32);
|
|
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
|
|
struct rpc_clnt *rpc_clone_client_set_auth(struct rpc_clnt *,
|
|
rpc_authflavor_t);
|
|
int rpc_switch_client_transport(struct rpc_clnt *,
|
|
struct xprt_create *,
|
|
const struct rpc_timeout *);
|
|
|
|
void rpc_shutdown_client(struct rpc_clnt *);
|
|
void rpc_release_client(struct rpc_clnt *);
|
|
void rpc_task_release_client(struct rpc_task *);
|
|
|
|
int rpcb_create_local(struct net *);
|
|
void rpcb_put_local(struct net *);
|
|
int rpcb_register(struct net *, u32, u32, int, unsigned short);
|
|
int rpcb_v4_register(struct net *net, const u32 program,
|
|
const u32 version,
|
|
const struct sockaddr *address,
|
|
const char *netid);
|
|
void rpcb_getport_async(struct rpc_task *);
|
|
|
|
void rpc_call_start(struct rpc_task *);
|
|
int rpc_call_async(struct rpc_clnt *clnt,
|
|
const struct rpc_message *msg, int flags,
|
|
const struct rpc_call_ops *tk_ops,
|
|
void *calldata);
|
|
int rpc_call_sync(struct rpc_clnt *clnt,
|
|
const struct rpc_message *msg, int flags);
|
|
struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
|
|
int flags);
|
|
int rpc_restart_call_prepare(struct rpc_task *);
|
|
int rpc_restart_call(struct rpc_task *);
|
|
void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
|
|
int rpc_protocol(struct rpc_clnt *);
|
|
struct net * rpc_net_ns(struct rpc_clnt *);
|
|
size_t rpc_max_payload(struct rpc_clnt *);
|
|
size_t rpc_max_bc_payload(struct rpc_clnt *);
|
|
void rpc_force_rebind(struct rpc_clnt *);
|
|
size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
|
|
const char *rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
|
|
int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t);
|
|
|
|
int rpc_clnt_iterate_for_each_xprt(struct rpc_clnt *clnt,
|
|
int (*fn)(struct rpc_clnt *, struct rpc_xprt *, void *),
|
|
void *data);
|
|
|
|
int rpc_clnt_test_and_add_xprt(struct rpc_clnt *clnt,
|
|
struct rpc_xprt_switch *xps,
|
|
struct rpc_xprt *xprt,
|
|
void *dummy);
|
|
int rpc_clnt_add_xprt(struct rpc_clnt *, struct xprt_create *,
|
|
int (*setup)(struct rpc_clnt *,
|
|
struct rpc_xprt_switch *,
|
|
struct rpc_xprt *,
|
|
void *),
|
|
void *data);
|
|
void rpc_set_connect_timeout(struct rpc_clnt *clnt,
|
|
unsigned long connect_timeout,
|
|
unsigned long reconnect_timeout);
|
|
|
|
int rpc_clnt_setup_test_and_add_xprt(struct rpc_clnt *,
|
|
struct rpc_xprt_switch *,
|
|
struct rpc_xprt *,
|
|
void *);
|
|
|
|
const char *rpc_proc_name(const struct rpc_task *task);
|
|
|
|
void rpc_clnt_xprt_switch_put(struct rpc_clnt *);
|
|
void rpc_clnt_xprt_switch_add_xprt(struct rpc_clnt *, struct rpc_xprt *);
|
|
bool rpc_clnt_xprt_switch_has_addr(struct rpc_clnt *clnt,
|
|
const struct sockaddr *sap);
|
|
void rpc_cleanup_clids(void);
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _LINUX_SUNRPC_CLNT_H */
|