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