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      1 /* @(#) $Header: /tcpdump/master/tcpdump/rpc_msg.h,v 1.1.2.1 2005/04/27 21:44:07 guy Exp $ (LBL) */
      2 /*
      3  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
      4  * unrestricted use provided that this legend is included on all tape
      5  * media and as a part of the software program in whole or part.  Users
      6  * may copy or modify Sun RPC without charge, but are not authorized
      7  * to license or distribute it to anyone else except as part of a product or
      8  * program developed by the user.
      9  *
     10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
     11  * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
     13  *
     14  * Sun RPC is provided with no support and without any obligation on the
     15  * part of Sun Microsystems, Inc. to assist in its use, correction,
     16  * modification or enhancement.
     17  *
     18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
     19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
     20  * OR ANY PART THEREOF.
     21  *
     22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
     23  * or profits or other special, indirect and consequential damages, even if
     24  * Sun has been advised of the possibility of such damages.
     25  *
     26  * Sun Microsystems, Inc.
     27  * 2550 Garcia Avenue
     28  * Mountain View, California  94043
     29  *
     30  *	from: @(#)rpc_msg.h 1.7 86/07/16 SMI
     31  *	from: @(#)rpc_msg.h	2.1 88/07/29 4.0 RPCSRC
     32  * $FreeBSD: src/include/rpc/rpc_msg.h,v 1.11.2.1 1999/08/29 14:39:07 peter Exp $
     33  */
     34 
     35 /*
     36  * rpc_msg.h
     37  * rpc message definition
     38  *
     39  * Copyright (C) 1984, Sun Microsystems, Inc.
     40  */
     41 
     42 #define SUNRPC_MSG_VERSION	((u_int32_t) 2)
     43 
     44 /*
     45  * Bottom up definition of an rpc message.
     46  * NOTE: call and reply use the same overall stuct but
     47  * different parts of unions within it.
     48  */
     49 
     50 enum sunrpc_msg_type {
     51 	SUNRPC_CALL=0,
     52 	SUNRPC_REPLY=1
     53 };
     54 
     55 enum sunrpc_reply_stat {
     56 	SUNRPC_MSG_ACCEPTED=0,
     57 	SUNRPC_MSG_DENIED=1
     58 };
     59 
     60 enum sunrpc_accept_stat {
     61 	SUNRPC_SUCCESS=0,
     62 	SUNRPC_PROG_UNAVAIL=1,
     63 	SUNRPC_PROG_MISMATCH=2,
     64 	SUNRPC_PROC_UNAVAIL=3,
     65 	SUNRPC_GARBAGE_ARGS=4,
     66 	SUNRPC_SYSTEM_ERR=5
     67 };
     68 
     69 enum sunrpc_reject_stat {
     70 	SUNRPC_RPC_MISMATCH=0,
     71 	SUNRPC_AUTH_ERROR=1
     72 };
     73 
     74 /*
     75  * Reply part of an rpc exchange
     76  */
     77 
     78 /*
     79  * Reply to an rpc request that was rejected by the server.
     80  */
     81 struct sunrpc_rejected_reply {
     82 	u_int32_t		 rj_stat;	/* enum reject_stat */
     83 	union {
     84 		struct {
     85 			u_int32_t low;
     86 			u_int32_t high;
     87 		} RJ_versions;
     88 		u_int32_t RJ_why;  /* enum auth_stat - why authentication did not work */
     89 	} ru;
     90 #define	rj_vers	ru.RJ_versions
     91 #define	rj_why	ru.RJ_why
     92 };
     93 
     94 /*
     95  * Body of a reply to an rpc request.
     96  */
     97 struct sunrpc_reply_body {
     98 	u_int32_t	rp_stat;		/* enum reply_stat */
     99 	struct sunrpc_rejected_reply rp_reject;	/* if rejected */
    100 };
    101 
    102 /*
    103  * Body of an rpc request call.
    104  */
    105 struct sunrpc_call_body {
    106 	u_int32_t cb_rpcvers;	/* must be equal to two */
    107 	u_int32_t cb_prog;
    108 	u_int32_t cb_vers;
    109 	u_int32_t cb_proc;
    110 	struct sunrpc_opaque_auth cb_cred;
    111 	/* followed by opaque verifier */
    112 };
    113 
    114 /*
    115  * The rpc message
    116  */
    117 struct sunrpc_msg {
    118 	u_int32_t		rm_xid;
    119 	u_int32_t		rm_direction;	/* enum msg_type */
    120 	union {
    121 		struct sunrpc_call_body RM_cmb;
    122 		struct sunrpc_reply_body RM_rmb;
    123 	} ru;
    124 #define	rm_call		ru.RM_cmb
    125 #define	rm_reply	ru.RM_rmb
    126 };
    127 #define	acpted_rply	ru.RM_rmb.ru.RP_ar
    128 #define	rjcted_rply	ru.RM_rmb.ru.RP_dr
    129