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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 
     22 /*
     23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #ifndef _SVC_DG_PRIV_H
     28 #define	_SVC_DG_PRIV_H
     29 
     30 /*
     31  * The svc_dg_data private datastructure shared by some services
     32  * for nefarious reasons.  THIS IS NOT AN INTERFACE. DO NOT USE.
     33  */
     34 
     35 #ifdef __cplusplus
     36 extern "C" {
     37 #endif
     38 
     39 /*
     40  * The size of the option header should include sufficient space for
     41  * a ucred; we reserve 32 words as before we had ucreds and we allocate
     42  * sizeof (svc_dg_data) + ucred_size().  Of course, opts must be declared
     43  * last so it can use the additional memory.
     44  */
     45 #define	MAX_OPT_WORDS	32
     46 
     47 /*
     48  * kept in xprt->xp_p2
     49  */
     50 struct svc_dg_data {
     51 	/* Note: optbuf must be the first field, used by ti_opts.c code */
     52 	struct	netbuf optbuf;			/* netbuf for options */
     53 	uint_t	 su_iosz;			/* size of send.recv buffer */
     54 	uint32_t	su_xid; 		/* transaction id */
     55 	XDR	su_xdrs;			/* XDR handle */
     56 	char	su_verfbody[MAX_AUTH_BYTES];	/* verifier body */
     57 	char	*su_cache;			/* cached data, NULL if none */
     58 	struct t_unitdata   su_tudata;		/* tu_data for recv */
     59 	int	opts[MAX_OPT_WORDS];		/* options: MUST BE LAST */
     60 };
     61 
     62 #define	get_svc_dg_data(xprt)	((struct svc_dg_data *)((xprt)->xp_p2))
     63 
     64 #ifdef __cplusplus
     65 }
     66 #endif
     67 
     68 #endif /* _SVC_DG_PRIV_H */
     69