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portalgo.h revision 1.1 
      1 /*	$NetBSD: portalgo.h,v 1.1 2012/06/25 15:28:39 christos Exp $	*/
      2 
      3 /*
      4  * Copyright 2011 Vlad Balan
      5  *
      6  * Written by Vlad Balan for the NetBSD Foundation.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  *
     29  */
     30 #ifndef _NETINET_PORTALGO_H_
     31 #define _NETINET_PORTALGO_H_
     32 
     33 #ifdef _KERNEL
     34 #include <sys/sysctl.h>
     35 
     36 struct inpcb_hdr;
     37 int portalgo_randport(uint16_t *, struct inpcb_hdr *, kauth_cred_t);
     38 int sysctl_portalgo_selected(SYSCTLFN_ARGS);
     39 int sysctl_portalgo_selected6(SYSCTLFN_ARGS);
     40 int sysctl_portalgo_available(SYSCTLFN_ARGS);
     41 int portalgo_algo_index_select(struct inpcb_hdr *, int);
     42 
     43 #define	PORTALGO_MAXLEN       16
     44 #endif /* _KERNEL */
     45 
     46 /*
     47  * User-settable options (used with setsockopt).
     48  */
     49 #define	PORTALGO_DEFAULT		0xffff
     50 #define	PORTALGO_BSD			0
     51 #define	PORTALGO_RANDOM_START		1
     52 #define	PORTALGO_RANDOM_PICK		2
     53 #define	PORTALGO_HASH			3
     54 #define	PORTALGO_DOUBLEHASH		4
     55 #define	PORTALGO_RANDINC		5
     56 
     57 #endif /* !_NETINET_PORTALGO_H_ */
     58