summaryrefslogtreecommitdiffstats
path: root/include/linux/sunrpc/clnt.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/sunrpc/clnt.h')
-rw-r--r--include/linux/sunrpc/clnt.h153
1 files changed, 153 insertions, 0 deletions
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
new file mode 100644
index 00000000000..2709caf4d12
--- /dev/null
+++ b/include/linux/sunrpc/clnt.h
@@ -0,0 +1,153 @@
+/*
+ * 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>
+#include <linux/sunrpc/timer.h>
+#include <asm/signal.h>
+
+/*
+ * This defines an RPC port mapping
+ */
+struct rpc_portmap {
+ __u32 pm_prog;
+ __u32 pm_vers;
+ __u32 pm_prot;
+ __u16 pm_port;
+ unsigned char pm_binding : 1; /* doing a getport() */
+ struct rpc_wait_queue pm_bindwait; /* waiting on getport() */
+};
+
+struct rpc_inode;
+
+/*
+ * The high-level client handle
+ */
+struct rpc_clnt {
+ atomic_t cl_count; /* Number of clones */
+ 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_oneshot : 1,/* dispose after use */
+ cl_dead : 1;/* abandoned */
+
+ struct rpc_rtt * cl_rtt; /* RTO estimator data */
+ struct rpc_portmap * cl_pmap; /* port mapping */
+
+ int cl_nodelen; /* nodename length */
+ char cl_nodename[UNX_MAXNODENAME];
+ char cl_pathname[30];/* Path in rpc_pipe_fs */
+ struct dentry * cl_dentry; /* inode */
+ struct rpc_clnt * cl_parent; /* Points to parent of clones */
+ struct rpc_rtt cl_rtt_default;
+ struct rpc_portmap cl_pmap_default;
+ char cl_inline_name[32];
+};
+#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 */
+ 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 */
+ 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 */
+ unsigned int p_timer; /* Which RTT timer to use */
+};
+
+#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, rpc_authflavor_t authflavor);
+struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
+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);
+void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
+size_t rpc_max_payload(struct rpc_clnt *);
+
+static __inline__
+int rpc_call(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags)
+{
+ struct rpc_message msg = {
+ .rpc_proc = &clnt->cl_procinfo[proc],
+ .rpc_argp = argp,
+ .rpc_resp = resp,
+ .rpc_cred = NULL
+ };
+ return rpc_call_sync(clnt, &msg, flags);
+}
+
+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 */