Rev 423 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 423 | giacomo | 1 | /* |
| 2 | * linux/include/linux/sunrpc/clnt.h |
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| 3 | * |
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| 4 | * Declarations for the high-level RPC client interface |
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| 5 | * |
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| 6 | * Copyright (C) 1995, 1996, Olaf Kirch <okir@monad.swb.de> |
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| 7 | */ |
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| 8 | |||
| 9 | #ifndef _LINUX_SUNRPC_CLNT_H |
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| 10 | #define _LINUX_SUNRPC_CLNT_H |
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| 11 | |||
| 12 | #include <linux/sunrpc/msg_prot.h> |
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| 13 | #include <linux/sunrpc/sched.h> |
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| 14 | #include <linux/sunrpc/xprt.h> |
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| 15 | #include <linux/sunrpc/auth.h> |
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| 16 | #include <linux/sunrpc/stats.h> |
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| 17 | #include <linux/sunrpc/xdr.h> |
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| 18 | #include <linux/sunrpc/timer.h> |
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| 19 | #include <asm/signal.h> |
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| 20 | |||
| 21 | /* |
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| 22 | * This defines an RPC port mapping |
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| 23 | */ |
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| 24 | struct rpc_portmap { |
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| 25 | __u32 pm_prog; |
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| 26 | __u32 pm_vers; |
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| 27 | __u32 pm_prot; |
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| 28 | __u16 pm_port; |
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| 29 | }; |
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| 30 | |||
| 31 | struct rpc_inode; |
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| 32 | |||
| 33 | /* |
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| 34 | * The high-level client handle |
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| 35 | */ |
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| 36 | struct rpc_clnt { |
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| 37 | atomic_t cl_users; /* number of references */ |
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| 38 | struct rpc_xprt * cl_xprt; /* transport */ |
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| 39 | struct rpc_procinfo * cl_procinfo; /* procedure info */ |
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| 40 | u32 cl_maxproc; /* max procedure number */ |
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| 41 | |||
| 42 | char * cl_server; /* server machine name */ |
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| 43 | char * cl_protname; /* protocol name */ |
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| 44 | struct rpc_auth * cl_auth; /* authenticator */ |
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| 45 | struct rpc_stat * cl_stats; /* statistics */ |
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| 46 | |||
| 47 | unsigned int cl_softrtry : 1,/* soft timeouts */ |
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| 48 | cl_intr : 1,/* interruptible */ |
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| 49 | cl_chatty : 1,/* be verbose */ |
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| 50 | cl_autobind : 1,/* use getport() */ |
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| 51 | cl_binding : 1,/* doing a getport() */ |
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| 52 | cl_droppriv : 1,/* enable NFS suid hack */ |
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| 53 | cl_oneshot : 1,/* dispose after use */ |
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| 54 | cl_dead : 1;/* abandoned */ |
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| 55 | |||
| 56 | struct rpc_rtt cl_rtt; /* RTO estimator data */ |
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| 57 | |||
| 58 | struct rpc_portmap cl_pmap; /* port mapping */ |
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| 59 | struct rpc_wait_queue cl_bindwait; /* waiting on getport() */ |
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| 60 | |||
| 61 | int cl_nodelen; /* nodename length */ |
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| 62 | char cl_nodename[UNX_MAXNODENAME]; |
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| 63 | char cl_pathname[30];/* Path in rpc_pipe_fs */ |
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| 64 | struct dentry * cl_dentry; /* inode */ |
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| 65 | }; |
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| 66 | #define cl_timeout cl_xprt->timeout |
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| 67 | #define cl_prog cl_pmap.pm_prog |
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| 68 | #define cl_vers cl_pmap.pm_vers |
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| 69 | #define cl_port cl_pmap.pm_port |
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| 70 | #define cl_prot cl_pmap.pm_prot |
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| 71 | |||
| 72 | /* |
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| 73 | * General RPC program info |
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| 74 | */ |
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| 75 | #define RPC_MAXVERSION 4 |
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| 76 | struct rpc_program { |
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| 77 | char * name; /* protocol name */ |
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| 78 | u32 number; /* program number */ |
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| 79 | unsigned int nrvers; /* number of versions */ |
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| 80 | struct rpc_version ** version; /* version array */ |
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| 81 | struct rpc_stat * stats; /* statistics */ |
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| 82 | char * pipe_dir_name; /* path to rpc_pipefs dir */ |
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| 83 | }; |
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| 84 | |||
| 85 | struct rpc_version { |
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| 86 | u32 number; /* version number */ |
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| 87 | unsigned int nrprocs; /* number of procs */ |
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| 88 | struct rpc_procinfo * procs; /* procedure array */ |
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| 89 | }; |
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| 90 | |||
| 91 | /* |
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| 92 | * Procedure information |
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| 93 | */ |
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| 94 | struct rpc_procinfo { |
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| 95 | u32 p_proc; /* RPC procedure number */ |
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| 96 | kxdrproc_t p_encode; /* XDR encode function */ |
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| 97 | kxdrproc_t p_decode; /* XDR decode function */ |
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| 98 | unsigned int p_bufsiz; /* req. buffer size */ |
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| 99 | unsigned int p_count; /* call count */ |
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| 100 | unsigned int p_timer; /* Which RTT timer to use */ |
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| 101 | }; |
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| 102 | |||
| 103 | #define RPC_CONGESTED(clnt) (RPCXPRT_CONGESTED((clnt)->cl_xprt)) |
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| 104 | #define RPC_PEERADDR(clnt) (&(clnt)->cl_xprt->addr) |
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| 105 | |||
| 106 | #ifdef __KERNEL__ |
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| 107 | |||
| 108 | struct rpc_clnt *rpc_create_client(struct rpc_xprt *xprt, char *servname, |
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| 109 | struct rpc_program *info, |
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| 110 | u32 version, rpc_authflavor_t authflavor); |
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| 111 | int rpc_shutdown_client(struct rpc_clnt *); |
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| 112 | int rpc_destroy_client(struct rpc_clnt *); |
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| 113 | void rpc_release_client(struct rpc_clnt *); |
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| 114 | void rpc_getport(struct rpc_task *, struct rpc_clnt *); |
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| 115 | int rpc_register(u32, u32, int, unsigned short, int *); |
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| 116 | |||
| 117 | void rpc_call_setup(struct rpc_task *, struct rpc_message *, int); |
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| 118 | |||
| 119 | int rpc_call_async(struct rpc_clnt *clnt, struct rpc_message *msg, |
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| 120 | int flags, rpc_action callback, void *clntdata); |
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| 121 | int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, |
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| 122 | int flags); |
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| 123 | void rpc_restart_call(struct rpc_task *); |
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| 124 | void rpc_clnt_sigmask(struct rpc_clnt *clnt, sigset_t *oldset); |
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| 125 | void rpc_clnt_sigunmask(struct rpc_clnt *clnt, sigset_t *oldset); |
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| 126 | void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int); |
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| 127 | |||
| 128 | static __inline__ |
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| 129 | int rpc_call(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags) |
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| 130 | { |
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| 131 | struct rpc_message msg = { |
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| 132 | .rpc_proc = &clnt->cl_procinfo[proc], |
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| 133 | .rpc_argp = argp, |
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| 134 | .rpc_resp = resp, |
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| 135 | .rpc_cred = NULL |
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| 136 | }; |
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| 137 | return rpc_call_sync(clnt, &msg, flags); |
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| 138 | } |
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| 139 | |||
| 140 | extern void rpciod_wake_up(void); |
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| 141 | |||
| 142 | /* |
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| 143 | * Helper function for NFSroot support |
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| 144 | */ |
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| 145 | int rpc_getport_external(struct sockaddr_in *, __u32, __u32, int); |
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| 146 | |||
| 147 | #endif /* __KERNEL__ */ |
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| 148 | #endif /* _LINUX_SUNRPC_CLNT_H */ |