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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, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #ifndef	_INET_IP_LISTUTILS_H
     28 #define	_INET_IP_LISTUTILS_H
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #ifdef	__cplusplus
     33 extern "C" {
     34 #endif
     35 
     36 #ifdef	_KERNEL
     37 
     38 boolean_t	lists_are_different(const slist_t *, const slist_t *);
     39 boolean_t	list_has_addr(const slist_t *, const in6_addr_t *);
     40 void		l_intersection(const slist_t *, const slist_t *, slist_t *);
     41 void		l_difference(const slist_t *, const slist_t *, slist_t *);
     42 void		l_remove(slist_t *, const in6_addr_t *);
     43 slist_t		*l_alloc_copy(const slist_t *);
     44 void		l_copy(const slist_t *, slist_t *);
     45 void		l_union_in_a(slist_t *, const slist_t *, boolean_t *);
     46 void		l_intersection_in_a(slist_t *, const slist_t *);
     47 void		l_difference_in_a(slist_t *, const slist_t *);
     48 slist_t		*l_alloc();
     49 void		l_free(slist_t *);
     50 
     51 #define	SLIST_IS_EMPTY(sl)	(((sl) == NULL) || ((sl)->sl_numsrc == 0))
     52 #define	SLIST_CNT(sl)		(((sl) == NULL) ? 0 : ((sl)->sl_numsrc))
     53 #define	CLEAR_SLIST(sl)		if ((sl) != NULL) (sl)->sl_numsrc = 0
     54 #define	FREE_SLIST(sl)		if ((sl) != NULL) l_free((sl))
     55 #define	COPY_SLIST(sl, newsl)			\
     56 	if ((newsl) == NULL)			\
     57 		(newsl) = l_alloc_copy((sl));	\
     58 	else					\
     59 		l_copy((sl), (newsl))
     60 
     61 #endif	/* _KERNEL */
     62 
     63 #ifdef	__cplusplus
     64 }
     65 #endif
     66 
     67 #endif	/* _INET_IP_LISTUTILS_H */
     68