4 * Copyright (C) 2002-2005 by Darren Reed.
6 * See the IPFILTER.LICENCE file for details on licencing.
8 * $Id: load_hash.c,v 1.11.2.5 2006/07/14 06:12:25 darrenr Exp $
12 #include <sys/ioctl.h>
14 #include "netinet/ip_lookup.h"
15 #include "netinet/ip_htable.h"
17 static int hashfd = -1;
20 int load_hash(iphp, list, iocfunc)
31 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
32 hashfd = open(IPLOOKUP_NAME, O_RDWR);
33 if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
36 for (n = 0, a = list; a != NULL; a = a->ipe_next)
40 op.iplo_type = IPLT_HASH;
41 op.iplo_unit = iphp->iph_unit;
42 strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
43 if (*op.iplo_name == '\0')
44 op.iplo_arg = IPHASH_ANON;
45 op.iplo_size = sizeof(iph);
46 op.iplo_struct = &iph;
47 iph.iph_unit = iphp->iph_unit;
48 iph.iph_type = iphp->iph_type;
49 strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
50 iph.iph_flags = iphp->iph_flags;
53 if (iphp->iph_size == 0)
56 size = iphp->iph_size;
57 if ((list == NULL) && (size == 1)) {
59 "WARNING: empty hash table %s, recommend setting %s\n",
60 iphp->iph_name, "size to match expected use");
63 iph.iph_seed = iphp->iph_seed;
68 if ((opts & OPT_REMOVE) == 0) {
69 if ((*iocfunc)(hashfd, SIOCLOOKUPADDTABLE, &op))
70 if ((opts & OPT_DONOTHING) == 0) {
71 perror("load_hash:SIOCLOOKUPADDTABLE");
76 strncpy(iph.iph_name, op.iplo_name, sizeof(op.iplo_name));
77 strncpy(iphp->iph_name, op.iplo_name, sizeof(op.iplo_name));
79 if (opts & OPT_VERBOSE) {
80 for (a = list; a != NULL; a = a->ipe_next) {
81 a->ipe_addr.in4_addr = ntohl(a->ipe_addr.in4_addr);
82 a->ipe_mask.in4_addr = ntohl(a->ipe_mask.in4_addr);
84 iph.iph_table = calloc(size, sizeof(*iph.iph_table));
85 if (iph.iph_table == NULL) {
86 perror("calloc(size, sizeof(*iph.iph_table))");
90 printhash(&iph, bcopywrap, iph.iph_name, opts);
94 for (a = list; a != NULL; a = a->ipe_next) {
95 a->ipe_addr.in4_addr = htonl(a->ipe_addr.in4_addr);
96 a->ipe_mask.in4_addr = htonl(a->ipe_mask.in4_addr);
100 if (opts & OPT_DEBUG)
101 printf("Hash %s:\n", iph.iph_name);
103 for (a = list; a != NULL; a = a->ipe_next)
104 load_hashnode(iphp->iph_unit, iph.iph_name, a, iocfunc);
106 if ((opts & OPT_REMOVE) != 0) {
107 if ((*iocfunc)(hashfd, SIOCLOOKUPDELTABLE, &op))
108 if ((opts & OPT_DONOTHING) == 0) {
109 perror("load_hash:SIOCLOOKUPDELTABLE");