| 1 | /* |
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| 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 | |
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| 9 | #ifndef _LINUX_SUNRPC_CLNT_H |
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| 10 | #define _LINUX_SUNRPC_CLNT_H |
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| 11 | |
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| 12 | #include <asm/types.h> |
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| 13 | |
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| 14 | #include <linux/sunrpc/sched.h> |
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| 15 | #include <linux/sunrpc/xprt.h> |
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| 16 | #include <linux/sunrpc/stats.h> |
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| 17 | #include <linux/sunrpc/timer.h> |
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| 18 | |
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| 19 | /* |
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| 20 | * This defines an RPC port mapping |
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| 21 | */ |
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| 22 | struct rpc_portmap { |
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| 23 | __u32 pm_prog; |
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| 24 | __u32 pm_vers; |
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| 25 | __u32 pm_prot; |
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| 26 | __u16 pm_port; |
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| 27 | unsigned char pm_binding : 1; /* doing a getport() */ |
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| 28 | struct rpc_wait_queue pm_bindwait; /* waiting on getport() */ |
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| 29 | }; |
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| 30 | |
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| 31 | struct rpc_inode; |
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| 32 | |
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| 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_count; /* Number of clones */ |
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| 38 | atomic_t cl_users; /* number of references */ |
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| 39 | struct rpc_xprt * cl_xprt; /* transport */ |
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| 40 | struct rpc_procinfo * cl_procinfo; /* procedure info */ |
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| 41 | __u32 cl_maxproc; /* max procedure number */ |
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| 42 | |
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| 43 | char * cl_server; /* server machine name */ |
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| 44 | char * cl_protname; /* protocol name */ |
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| 45 | struct rpc_auth * cl_auth; /* authenticator */ |
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| 46 | struct rpc_stat * cl_stats; /* statistics */ |
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| 47 | |
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| 48 | unsigned int cl_softrtry : 1,/* soft timeouts */ |
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| 49 | cl_intr : 1,/* interruptible */ |
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| 50 | cl_chatty : 1,/* be verbose */ |
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| 51 | cl_autobind : 1,/* use getport() */ |
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| 52 | cl_oneshot : 1,/* dispose after use */ |
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| 53 | cl_dead : 1;/* abandoned */ |
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| 54 | |
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| 55 | struct rpc_rtt * cl_rtt; /* RTO estimator data */ |
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| 56 | struct rpc_portmap * cl_pmap; /* port mapping */ |
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| 57 | |
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| 58 | int cl_nodelen; /* nodename length */ |
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| 59 | char cl_nodename[UNX_MAXNODENAME]; |
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| 60 | char cl_pathname[30];/* Path in rpc_pipe_fs */ |
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| 61 | struct dentry * cl_dentry; /* inode */ |
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| 62 | struct rpc_clnt * cl_parent; /* Points to parent of clones */ |
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| 63 | struct rpc_rtt cl_rtt_default; |
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| 64 | struct rpc_portmap cl_pmap_default; |
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| 65 | char cl_inline_name[32]; |
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| 66 | }; |
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| 67 | #define cl_timeout cl_xprt->timeout |
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| 68 | #define cl_prog cl_pmap->pm_prog |
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| 69 | #define cl_vers cl_pmap->pm_vers |
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| 70 | #define cl_port cl_pmap->pm_port |
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| 71 | #define cl_prot cl_pmap->pm_prot |
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| 72 | |
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| 73 | /* |
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| 74 | * General RPC program info |
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| 75 | */ |
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| 76 | #define RPC_MAXVERSION 4 |
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| 77 | struct rpc_program { |
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| 78 | char * name; /* protocol name */ |
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| 79 | __u32 number; /* program number */ |
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| 80 | unsigned int nrvers; /* number of versions */ |
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| 81 | struct rpc_version ** version; /* version array */ |
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| 82 | struct rpc_stat * stats; /* statistics */ |
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| 83 | char * pipe_dir_name; /* path to rpc_pipefs dir */ |
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| 84 | }; |
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| 85 | |
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| 86 | struct rpc_version { |
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| 87 | __u32 number; /* version number */ |
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| 88 | unsigned int nrprocs; /* number of procs */ |
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| 89 | struct rpc_procinfo * procs; /* procedure array */ |
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| 90 | }; |
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| 91 | |
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| 92 | /* |
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| 93 | * Procedure information |
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| 94 | */ |
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| 95 | struct rpc_procinfo { |
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| 96 | __u32 p_proc; /* RPC procedure number */ |
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| 97 | kxdrproc_t p_encode; /* XDR encode function */ |
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| 98 | kxdrproc_t p_decode; /* XDR decode function */ |
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| 99 | unsigned int p_bufsiz; /* req. buffer size */ |
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| 100 | unsigned int p_count; /* call count */ |
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| 101 | unsigned int p_timer; /* Which RTT timer to use */ |
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| 102 | }; |
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| 103 | |
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| 104 | #define RPC_CONGESTED(clnt) (RPCXPRT_CONGESTED((clnt)->cl_xprt)) |
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| 105 | #define RPC_PEERADDR(clnt) (&(clnt)->cl_xprt->addr) |
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| 106 | |
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| 107 | #endif /* _LINUX_SUNRPC_CLNT_H */ |
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