/* $FreeBSD$ */
/*
* Copyright (C) 2012 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* $Id$
*/
#include <fcntl.h>
#include <sys/ioctl.h>
#include "ipf.h"
#include "netinet/ip_lookup.h"
#include "netinet/ip_htable.h"
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 (pool_open() == -1)
return -1;
for (n = 0, a = list; a != NULL; a = a->ipe_next)
n++;
bzero((char *)&iph, sizeof(iph));
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 = *iphp;
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_table = NULL;
iph.iph_list = NULL;
iph.iph_ref = 0;
if ((opts & OPT_REMOVE) == 0) {
if (pool_ioctl(iocfunc, SIOCLOOKUPADDTABLE, &op))
if ((opts & OPT_DONOTHING) == 0) {
return ipf_perror_fd(pool_fd(), iocfunc,
"add lookup hash table");
}
}
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) {
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_list = list;
printhash(&iph, bcopywrap, iph.iph_name, opts, NULL);
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, 0, iocfunc);
if ((opts & OPT_REMOVE) != 0) {
if (pool_ioctl(iocfunc, SIOCLOOKUPDELTABLE, &op))
if ((opts & OPT_DONOTHING) == 0) {
return ipf_perror_fd(pool_fd(), iocfunc,
"delete lookup hash table");
}
}
return 0;
}
