linux/include/linux/sunrpc/clnt.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  linux/include/linux/sunrpc/clnt.h
 *
 *  Declarations for the high-level RPC client interface
 *
 *  Copyright (C) 1995, 1996, Olaf Kirch <[email protected]>
 */

#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/refcount.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;
struct rpc_sysfs_client { … };


/*
 * The high-level client handle
 */
struct rpc_clnt { … };

/*
 * General RPC program info
 */
#define RPC_MAXVERSION …
struct rpc_program { … };

struct rpc_version { … };

/*
 * Procedure information
 */
struct rpc_procinfo { … };

struct rpc_create_args { … };

struct rpc_add_xprt_test { … };

/* Values for "flags" field */
#define RPC_CLNT_CREATE_HARDRTRY …
#define RPC_CLNT_CREATE_AUTOBIND …
#define RPC_CLNT_CREATE_NONPRIVPORT …
#define RPC_CLNT_CREATE_NOPING …
#define RPC_CLNT_CREATE_DISCRTRY …
#define RPC_CLNT_CREATE_QUIET …
#define RPC_CLNT_CREATE_INFINITE_SLOTS …
#define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT …
#define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT …
#define RPC_CLNT_CREATE_SOFTERR …
#define RPC_CLNT_CREATE_REUSEPORT …
#define RPC_CLNT_CREATE_CONNECTED …

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_transport(struct rpc_task *);
void		rpc_task_release_client(struct rpc_task *);
struct rpc_xprt	*rpc_task_get_xprt(struct rpc_clnt *clnt,
		struct rpc_xprt *xprt);

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_prepare_reply_pages(struct rpc_rqst *req, struct page **pages,
			     unsigned int base, unsigned int len,
			     unsigned int hdrsize);
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);
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 *);
unsigned int	rpc_num_bc_slots(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 *);
void		rpc_clnt_manage_trunked_xprts(struct rpc_clnt *);
void		rpc_clnt_probe_trunked_xprts(struct rpc_clnt *,
			struct rpc_add_xprt_test *);

const char *rpc_proc_name(const struct rpc_task *task);

void rpc_clnt_xprt_switch_add_xprt(struct rpc_clnt *, struct rpc_xprt *);
void rpc_clnt_xprt_switch_remove_xprt(struct rpc_clnt *, struct rpc_xprt *);
bool rpc_clnt_xprt_switch_has_addr(struct rpc_clnt *clnt,
			const struct sockaddr *sap);
void rpc_clnt_xprt_set_online(struct rpc_clnt *clnt, struct rpc_xprt *xprt);
void rpc_clnt_disconnect(struct rpc_clnt *clnt);
void rpc_cleanup_clids(void);

static inline int rpc_reply_expected(struct rpc_task *task)
{ … }

static inline void rpc_task_close_connection(struct rpc_task *task)
{ … }
#endif /* _LINUX_SUNRPC_CLNT_H */