113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/* $NetBSD: load_hash.c,v 1.1.1.3 2006/04/04 16:09:32 martti Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 2002 by Darren Reed.
|
|
*
|
|
* See the IPFILTER.LICENCE file for details on licencing.
|
|
*
|
|
* Id: load_hash.c,v 1.11.2.3 2005/11/13 15:41:12 darrenr Exp
|
|
*/
|
|
|
|
#include <fcntl.h>
|
|
#include <sys/ioctl.h>
|
|
#include "ipf.h"
|
|
#include "netinet/ip_lookup.h"
|
|
#include "netinet/ip_htable.h"
|
|
|
|
static int hashfd = -1;
|
|
|
|
|
|
int load_hash(iphp, list, iocfunc)
|
|
iphtable_t *iphp;
|
|
iphtent_t *list;
|
|
ioctlfunc_t iocfunc;
|
|
{
|
|
iplookupop_t op;
|
|
iphtable_t iph;
|
|
iphtent_t *a;
|
|
size_t size;
|
|
int n;
|
|
|
|
if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
|
|
hashfd = open(IPLOOKUP_NAME, O_RDWR);
|
|
if ((hashfd == -1) && ((opts & OPT_DONOTHING) == 0))
|
|
return -1;
|
|
|
|
for (n = 0, a = list; a != NULL; a = a->ipe_next)
|
|
n++;
|
|
|
|
op.iplo_arg = 0;
|
|
op.iplo_type = IPLT_HASH;
|
|
op.iplo_unit = iphp->iph_unit;
|
|
strncpy(op.iplo_name, iphp->iph_name, sizeof(op.iplo_name));
|
|
if (*op.iplo_name == '\0')
|
|
op.iplo_arg = IPHASH_ANON;
|
|
op.iplo_size = sizeof(iph);
|
|
op.iplo_struct = &iph;
|
|
iph.iph_unit = iphp->iph_unit;
|
|
iph.iph_type = iphp->iph_type;
|
|
strncpy(iph.iph_name, iphp->iph_name, sizeof(iph.iph_name));
|
|
iph.iph_flags = iphp->iph_flags;
|
|
if (n <= 0)
|
|
n = 1;
|
|
if (iphp->iph_size == 0)
|
|
size = n * 2 - 1;
|
|
else
|
|
size = iphp->iph_size;
|
|
if ((list == NULL) && (size == 1)) {
|
|
fprintf(stderr,
|
|
"WARNING: empty hash table %s, recommend setting %s\n",
|
|
iphp->iph_name, "size to match expected use");
|
|
}
|
|
iph.iph_size = size;
|
|
iph.iph_seed = iphp->iph_seed;
|
|
iph.iph_table = NULL;
|
|
iph.iph_ref = 0;
|
|
|
|
if ((opts & OPT_REMOVE) == 0) {
|
|
if ((*iocfunc)(hashfd, SIOCLOOKUPADDTABLE, &op))
|
|
if ((opts & OPT_DONOTHING) == 0) {
|
|
perror("load_hash:SIOCLOOKUPADDTABLE");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
strncpy(iph.iph_name, op.iplo_name, sizeof(op.iplo_name));
|
|
strncpy(iphp->iph_name, op.iplo_name, sizeof(op.iplo_name));
|
|
|
|
if (opts & OPT_VERBOSE) {
|
|
for (a = list; a != NULL; a = a->ipe_next) {
|
|
a->ipe_addr.in4_addr = ntohl(a->ipe_addr.in4_addr);
|
|
a->ipe_mask.in4_addr = ntohl(a->ipe_mask.in4_addr);
|
|
}
|
|
iph.iph_table = calloc(size, sizeof(*iph.iph_table));
|
|
if (iph.iph_table == NULL) {
|
|
perror("calloc(size, sizeof(*iph.iph_table))");
|
|
return -1;
|
|
}
|
|
iph.iph_table[0] = list;
|
|
printhash(&iph, bcopywrap, iph.iph_name, opts);
|
|
free(iph.iph_table);
|
|
|
|
for (a = list; a != NULL; a = a->ipe_next) {
|
|
a->ipe_addr.in4_addr = htonl(a->ipe_addr.in4_addr);
|
|
a->ipe_mask.in4_addr = htonl(a->ipe_mask.in4_addr);
|
|
}
|
|
}
|
|
|
|
if (opts & OPT_DEBUG)
|
|
printf("Hash %s:\n", iph.iph_name);
|
|
|
|
for (a = list; a != NULL; a = a->ipe_next)
|
|
load_hashnode(iphp->iph_unit, iph.iph_name, a, iocfunc);
|
|
|
|
if ((opts & OPT_REMOVE) != 0) {
|
|
if ((*iocfunc)(hashfd, SIOCLOOKUPDELTABLE, &op))
|
|
if ((opts & OPT_DONOTHING) == 0) {
|
|
perror("load_hash:SIOCLOOKUPDELTABLE");
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|