1/* @(#) $Header: /tcpdump/master/tcpdump/rpc_msg.h,v 1.2 2005-04-27 21:43:48 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 * $FreeBSD$
33 * FreeBSD: src/include/rpc/rpc_msg.h,v 1.11.2.1 1999/08/29 14:39:07 peter Exp
34 */
35
36/*
37 * rpc_msg.h
38 * rpc message definition
39 *
40 * Copyright (C) 1984, Sun Microsystems, Inc.
41 */
42
43#define SUNRPC_MSG_VERSION	((u_int32_t) 2)
44
45/*
46 * Bottom up definition of an rpc message.
47 * NOTE: call and reply use the same overall stuct but
48 * different parts of unions within it.
49 */
50
51enum sunrpc_msg_type {
52	SUNRPC_CALL=0,
53	SUNRPC_REPLY=1
54};
55
56enum sunrpc_reply_stat {
57	SUNRPC_MSG_ACCEPTED=0,
58	SUNRPC_MSG_DENIED=1
59};
60
61enum sunrpc_accept_stat {
62	SUNRPC_SUCCESS=0,
63	SUNRPC_PROG_UNAVAIL=1,
64	SUNRPC_PROG_MISMATCH=2,
65	SUNRPC_PROC_UNAVAIL=3,
66	SUNRPC_GARBAGE_ARGS=4,
67	SUNRPC_SYSTEM_ERR=5
68};
69
70enum sunrpc_reject_stat {
71	SUNRPC_RPC_MISMATCH=0,
72	SUNRPC_AUTH_ERROR=1
73};
74
75/*
76 * Reply part of an rpc exchange
77 */
78
79/*
80 * Reply to an rpc request that was rejected by the server.
81 */
82struct sunrpc_rejected_reply {
83	u_int32_t		 rj_stat;	/* enum reject_stat */
84	union {
85		struct {
86			u_int32_t low;
87			u_int32_t high;
88		} RJ_versions;
89		u_int32_t RJ_why;  /* enum auth_stat - why authentication did not work */
90	} ru;
91#define	rj_vers	ru.RJ_versions
92#define	rj_why	ru.RJ_why
93};
94
95/*
96 * Body of a reply to an rpc request.
97 */
98struct sunrpc_reply_body {
99	u_int32_t	rp_stat;		/* enum reply_stat */
100	struct sunrpc_rejected_reply rp_reject;	/* if rejected */
101};
102
103/*
104 * Body of an rpc request call.
105 */
106struct sunrpc_call_body {
107	u_int32_t cb_rpcvers;	/* must be equal to two */
108	u_int32_t cb_prog;
109	u_int32_t cb_vers;
110	u_int32_t cb_proc;
111	struct sunrpc_opaque_auth cb_cred;
112	/* followed by opaque verifier */
113};
114
115/*
116 * The rpc message
117 */
118struct sunrpc_msg {
119	u_int32_t		rm_xid;
120	u_int32_t		rm_direction;	/* enum msg_type */
121	union {
122		struct sunrpc_call_body RM_cmb;
123		struct sunrpc_reply_body RM_rmb;
124	} ru;
125#define	rm_call		ru.RM_cmb
126#define	rm_reply	ru.RM_rmb
127};
128#define	acpted_rply	ru.RM_rmb.ru.RP_ar
129#define	rjcted_rply	ru.RM_rmb.ru.RP_dr
130