2 * linux/include/linux/sunrpc/clnt.h
4 * Declarations for the high-level RPC client interface
6 * Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de>
9 #ifndef _LINUX_SUNRPC_CLNT_H
10 #define _LINUX_SUNRPC_CLNT_H
12 #include <linux/sunrpc/msg_prot.h>
13 #include <linux/sunrpc/sched.h>
14 #include <linux/sunrpc/xprt.h>
15 #include <linux/sunrpc/auth.h>
16 #include <linux/sunrpc/stats.h>
17 #include <linux/sunrpc/xdr.h>
18 #include <linux/sunrpc/timer.h>
19 #include <asm/signal.h>
24 * The high-level client handle
27 atomic_t cl_count; /* Number of clones */
28 atomic_t cl_users; /* number of references */
29 struct rpc_xprt * cl_xprt; /* transport */
30 struct rpc_procinfo * cl_procinfo; /* procedure info */
31 u32 cl_prog, /* RPC program number */
32 cl_vers, /* RPC version number */
33 cl_maxproc; /* max procedure number */
35 char * cl_server; /* server machine name */
36 char * cl_protname; /* protocol name */
37 struct rpc_auth * cl_auth; /* authenticator */
38 struct rpc_stat * cl_stats; /* per-program statistics */
39 struct rpc_iostats * cl_metrics; /* per-client statistics */
41 unsigned int cl_softrtry : 1,/* soft timeouts */
42 cl_intr : 1,/* interruptible */
43 cl_autobind : 1,/* use getport() */
44 cl_oneshot : 1,/* dispose after use */
45 cl_dead : 1;/* abandoned */
47 struct rpc_rtt * cl_rtt; /* RTO estimator data */
49 int cl_nodelen; /* nodename length */
50 char cl_nodename[UNX_MAXNODENAME];
51 char cl_pathname[30];/* Path in rpc_pipe_fs */
52 struct vfsmount * cl_vfsmnt;
53 struct dentry * cl_dentry; /* inode */
54 struct rpc_clnt * cl_parent; /* Points to parent of clones */
55 struct rpc_rtt cl_rtt_default;
56 char cl_inline_name[32];
60 * General RPC program info
62 #define RPC_MAXVERSION 4
64 char * name; /* protocol name */
65 u32 number; /* program number */
66 unsigned int nrvers; /* number of versions */
67 struct rpc_version ** version; /* version array */
68 struct rpc_stat * stats; /* statistics */
69 char * pipe_dir_name; /* path to rpc_pipefs dir */
73 u32 number; /* version number */
74 unsigned int nrprocs; /* number of procs */
75 struct rpc_procinfo * procs; /* procedure array */
79 * Procedure information
82 u32 p_proc; /* RPC procedure number */
83 kxdrproc_t p_encode; /* XDR encode function */
84 kxdrproc_t p_decode; /* XDR decode function */
85 unsigned int p_bufsiz; /* req. buffer size */
86 unsigned int p_count; /* call count */
87 unsigned int p_timer; /* Which RTT timer to use */
88 u32 p_statidx; /* Which procedure to account */
89 char * p_name; /* name of procedure */
94 struct rpc_create_args {
96 struct sockaddr *address;
98 struct rpc_timeout *timeout;
100 struct rpc_program *program;
102 rpc_authflavor_t authflavor;
106 /* Values for "flags" field */
107 #define RPC_CLNT_CREATE_HARDRTRY (1UL << 0)
108 #define RPC_CLNT_CREATE_INTR (1UL << 1)
109 #define RPC_CLNT_CREATE_AUTOBIND (1UL << 2)
110 #define RPC_CLNT_CREATE_ONESHOT (1UL << 3)
111 #define RPC_CLNT_CREATE_NONPRIVPORT (1UL << 4)
112 #define RPC_CLNT_CREATE_NOPING (1UL << 5)
114 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
115 struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
116 struct rpc_program *, int);
117 struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
118 int rpc_shutdown_client(struct rpc_clnt *);
119 int rpc_destroy_client(struct rpc_clnt *);
120 void rpc_release_client(struct rpc_clnt *);
121 void rpc_getport(struct rpc_task *);
122 int rpc_register(u32, u32, int, unsigned short, int *);
124 void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
126 int rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg,
127 int flags, const struct rpc_call_ops *tk_ops,
129 int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg,
131 void rpc_restart_call(struct rpc_task *);
132 void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset);
133 void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset);
134 void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
135 size_t rpc_max_payload(struct rpc_clnt *);
136 void rpc_force_rebind(struct rpc_clnt *);
137 int rpc_ping(struct rpc_clnt *clnt, int flags);
138 size_t rpc_peeraddr(struct rpc_clnt *, struct sockaddr *, size_t);
139 char * rpc_peeraddr2str(struct rpc_clnt *, enum rpc_display_format_t);
142 * Helper function for NFSroot support
144 int rpc_getport_external(struct sockaddr_in *, __u32, __u32, int);
146 #endif /* __KERNEL__ */
147 #endif /* _LINUX_SUNRPC_CLNT_H */