/* $NetBSD: nat_setgroupmap.c,v 1.3 2018/02/04 08:19:42 mrg Exp $ */ /* * Copyright (C) 2012 by Darren Reed. * * See the IPFILTER.LICENCE file for details on licencing. */ #if !defined(lint) static __attribute__((__used__)) const char rcsid[] = "@(#)Id: nat_setgroupmap.c,v 1.1.1.2 2012/07/22 13:44:39 darrenr Exp $"; #endif #include "ipf.h" void nat_setgroupmap(n) ipnat_t *n; { if (n->in_nsrcmsk == n->in_osrcmsk) n->in_ippip = 1; else if (n->in_flags & IPN_AUTOPORTMAP) { n->in_ippip = ~ntohl(n->in_osrcmsk); if (n->in_nsrcmsk != 0xffffffff) n->in_ippip /= (~ntohl(n->in_nsrcmsk) + 1); n->in_ippip++; if (n->in_ippip == 0) n->in_ippip = 1; n->in_ppip = USABLE_PORTS / n->in_ippip; } else { n->in_space = USABLE_PORTS * ~ntohl(n->in_nsrcmsk); n->in_snip = 0; if (!(n->in_ppip = n->in_spmin)) n->in_ppip = 1; n->in_ippip = USABLE_PORTS / n->in_ppip; } }