load_hash.c revision 637:3bfca5eeee8e 
1/*
2 * Copyright (C) 2002 by Darren Reed.
3 *
4 * See the IPFILTER.LICENCE file for details on licencing.
5 *
6 * $Id: load_hash.c,v 1.10 2003/04/26 04:55:11 darrenr Exp $
7 *
8 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
9 * Use is subject to license terms.
10 */
11
12#pragma ident	"%Z%%M%	%I%	%E% SMI"
13
14#include <fcntl.h>
15#include <sys/ioctl.h>
16#include "ipf.h"
17#if SOLARIS2 >= 10
18#include "ip_lookup.h"
19#include "ip_htable.h"
20#else
21#include "netinet/ip_lookup.h"
22#include "netinet/ip_htable.h"
23#endif
24
25static int hashfd = -1;
26
27
28int load_hash(iphp, list, iocfunc)
29iphtable_t *iphp;
30iphtent_t *list;
31ioctlfunc_t iocfunc;
32{
33	iplookupop_t op;
34	iphtable_t iph;
35	iphtent_t *a;
36	size_t size;
37	int n;
38
39	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
40		hashfd = open(IPLOOKUP_NAME, O_RDWR);
41	if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
42		return -1;
43	if (list == NULL)
44		return 0;
45
46	for (n = 0, a = list; a != NULL; a = a->ipe_next)
47		n++;
48
49	op.iplo_arg = 0;
50	op.iplo_type = IPLT_HASH;
51	op.iplo_unit = iphp->iph_unit;
52	strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
53	if (*op.iplo_name == '\0')
54		op.iplo_arg = IPHASH_ANON;
55	op.iplo_size = sizeof(iph);
56	op.iplo_struct = &iph;
57	iph.iph_unit = iphp->iph_unit;
58	iph.iph_type = iphp->iph_type;
59	strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
60	iph.iph_flags = iphp->iph_flags;
61	if (iphp->iph_size == 0)
62		size = n * 2 - 1;
63	else
64		size = iphp->iph_size;
65	iph.iph_size = size;
66	iph.iph_seed = iphp->iph_seed;
67	iph.iph_table = NULL;
68	iph.iph_ref = 0;
69
70	if ((*iocfunc)(hashfd, SIOCLOOKUPADDTABLE, &op))
71		if ((opts & OPT_DONOTHING) == 0) {
72			perror("load_hash:SIOCLOOKUPADDTABLE");
73			return -1;
74		}
75
76	strncpy(op.iplo_name, iph.iph_name, sizeof(op.iplo_name));
77	strncpy(iphp->iph_name, iph.iph_name, sizeof(op.iplo_name));
78
79	if (opts & OPT_VERBOSE) {
80		for (a = list; a != NULL; a = a->ipe_next) {
81			if (a->ipe_family == AF_INET) {
82				a->ipe_addr.in4_addr = ntohl(a->ipe_addr.in4_addr);
83				a->ipe_mask.in4_addr = ntohl(a->ipe_mask.in4_addr);
84			}
85		}
86		iph.iph_table = calloc(size, sizeof(*iph.iph_table));
87		if (iph.iph_table == NULL) {
88			perror("calloc(size, sizeof(*iph.iph_table))");
89			return -1;
90		}
91		iph.iph_table[0] = list;
92		printhash(&iph, bcopywrap, opts);
93		free(iph.iph_table);
94
95		for (a = list; a != NULL; a = a->ipe_next) {
96			if (a->ipe_family == AF_INET) {
97				a->ipe_addr.in4_addr = htonl(a->ipe_addr.in4_addr);
98				a->ipe_mask.in4_addr = htonl(a->ipe_mask.in4_addr);
99			}
100		}
101	}
102
103	if (opts & OPT_DEBUG)
104		printf("Hash %s:\n", iph.iph_name);
105
106	for (a = list; a != NULL; a = a->ipe_next)
107		load_hashnode(iphp->iph_unit, iph.iph_name, a, iocfunc);
108
109	return 0;
110}
111