Initial import

1 files changed, 185 insertions, 0 deletions

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
new file mode 100644
index 000000000..598ba80ec
--- /dev/null
+++ b/include/linux/sunrpc/clnt.h
@@ -0,0 +1,185 @@
+/*
+ *  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>
+
+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 */
+	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 */
+
+	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
+};
+
+/*
+ * 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 */
+	struct rpc_procinfo *	procs;		/* procedure array */
+};
+
+/*
+ * 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_count;	/* call count */
+	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 */
+};
+
+/* 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_create_xprt(struct rpc_create_args *args,
+					struct rpc_xprt *xprt);
+struct rpc_clnt	*rpc_bind_new_program(struct rpc_clnt *,
+				const struct rpc_program *, u32);
+void rpc_task_reset_client(struct rpc_task *task, struct rpc_clnt *clnt);
+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 *);
+unsigned long	rpc_get_timeout(struct rpc_clnt *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);
+
+const char *rpc_proc_name(const struct rpc_task *task);
+#endif /* __KERNEL__ */
+#endif /* _LINUX_SUNRPC_CLNT_H */