| /* |
| * 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_new_client(struct rpc_xprt *xprt, char *servname, |
| struct rpc_program *info, |
| u32 version, rpc_authflavor_t authflavor); |
| struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *, |
| struct rpc_program *, int); |
| 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 *); |
| int rpc_ping(struct rpc_clnt *clnt, int flags); |
| |
| 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 */ |