remove_hash.c revision 145519
1/* $FreeBSD: head/contrib/ipfilter/lib/remove_hash.c 145519 2005-04-25 18:20:15Z darrenr $ */ 2 3/* 4 * Copyright (C) 2002 by Darren Reed. 5 * 6 * See the IPFILTER.LICENCE file for details on licencing. 7 * 8 * Id: remove_hash.c,v 1.1 2003/04/13 06:40:14 darrenr Exp 9 */ 10 11#include <fcntl.h> 12#include <sys/ioctl.h> 13#include "ipf.h" 14#include "netinet/ip_lookup.h" 15#include "netinet/ip_htable.h" 16 17static int hashfd = -1; 18 19 20int remove_hash(iphp, iocfunc) 21iphtable_t *iphp; 22ioctlfunc_t iocfunc; 23{ 24 iplookupop_t op; 25 iphtable_t iph; 26 27 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0)) 28 hashfd = open(IPLOOKUP_NAME, O_RDWR); 29 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0)) 30 return -1; 31 32 op.iplo_type = IPLT_HASH; 33 op.iplo_unit = iphp->iph_unit; 34 strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name)); 35 if (*op.iplo_name == '\0') 36 op.iplo_arg = IPHASH_ANON; 37 op.iplo_size = sizeof(iph); 38 op.iplo_struct = &iph; 39 40 bzero((char *)&iph, sizeof(iph)); 41 iph.iph_unit = iphp->iph_unit; 42 iph.iph_type = iphp->iph_type; 43 strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name)); 44 iph.iph_flags = iphp->iph_flags; 45 46 if ((*iocfunc)(hashfd, SIOCLOOKUPDELTABLE, &op)) 47 if ((opts & OPT_DONOTHING) == 0) { 48 perror("remove_hash:SIOCLOOKUPDELTABLE"); 49 return -1; 50 } 51 52 return 0; 53} 54