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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* SMB WINS support functions
*/
#include <strings.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <smbsrv/smbinfo.h>
#include <smbsrv/libsmb.h>
/*
* smb_wins_iplist
*
* Get a string containing a list of comma separated IP addresses
* and return an array containing numeric equivalent for string IPs.
*
* Returns the number of parsed IPs.
* Return -1 if list is badly formatted.
* This routine need fix for IPv6
*/
int
smb_wins_iplist(char *list, uint32_t iplist[], int max_naddr)
{
char *ip, *ctx;
char *tmp;
int n = 0;
if ((list == NULL) || (*list == '\0'))
return (0);
if ((tmp = strdup(list)) == NULL)
return (0);
ip = strtok_r(tmp, ",", &ctx);
while (ip && (n < max_naddr)) {
ip = trim_whitespace(ip);
if (*ip != 0) {
if (inet_pton(AF_INET, ip, &iplist[n]) == 1) {
n++;
} else {
return (-1);
}
}
ip = strtok_r(0, ",", &ctx);
}
free(tmp);
return (n);
}
/*
* smb_wins_is_excluded
*
* Check to see if the given IP addr shouldn't be registered in WINS.
*
* Returns 1 if it's excluded, 0 if it's not.
*/
boolean_t
smb_wins_is_excluded(in_addr_t ipaddr, ipaddr_t *exclude_list, int nexclude)
{
int i;
if (nexclude == 0)
return (B_FALSE);
for (i = 0; i < nexclude; i++)
if (ipaddr == exclude_list[i]) {
return (B_TRUE);
}
return (B_FALSE);
}
/*
* Build a CSV list of ips to be excluded.
* This function needs fix for IPv6
*/
void
smb_wins_build_list(char *buf, uint32_t iplist[], int max_naddr)
{
char ipstr[16];
int i;
if (!buf)
return;
buf[0] = '\0';
for (i = 0; i < max_naddr; i++) {
/* XXX these will be removed */
/*LINTED*/
if (iplist[i] == -1)
continue;
if (inet_ntop(AF_INET, (const void *)(&iplist[i]), ipstr,
sizeof (ipstr)) == 0)
continue;
(void) strcat(buf, ipstr);
(void) strcat(buf, ",");
}
buf[strlen(buf)-1] = '\0';
}
/*
* This function build the new WINS exclude list from
* configured list + new additions to exclude list
* It also assumes that the buffers are of enough space.
*/
int
smb_wins_exclude_list(char *config_list, char *exclude_list)
{
int ccnt, ecnt, already_there;
int i, j;
uint32_t ncur_list[SMB_PI_MAX_NETWORKS];
uint32_t ecur_list[SMB_PI_MAX_NETWORKS];
ccnt = smb_wins_iplist(config_list, ncur_list, SMB_PI_MAX_NETWORKS);
if (ccnt < 0)
return (-1);
ecnt = smb_wins_iplist(exclude_list, ecur_list, SMB_PI_MAX_NETWORKS);
if (ecnt < 0)
return (-1);
if ((ccnt + ecnt) > SMB_PI_MAX_NETWORKS)
return (-1);
for (i = 0; i < ecnt; i++) {
already_there = 0;
for (j = 0; j < ccnt; j++) {
if (ncur_list[j] == ecur_list[i]) {
already_there = 1;
}
}
if (already_there)
continue;
ncur_list[ccnt++] = ecur_list[i];
}
smb_wins_build_list(config_list, ncur_list, ccnt);
return (0);
}
/*
* This function build the new WINS allow list from
* configured list - new allowed list
* It also assumes that the buffers are of enough space.
*/
int
smb_wins_allow_list(char *config_list, char *allow_list)
{
int ccnt, acnt;
int i, j;
uint32_t ncur_list[SMB_PI_MAX_NETWORKS];
uint32_t acur_list[SMB_PI_MAX_NETWORKS];
ccnt = smb_wins_iplist(config_list, ncur_list, SMB_PI_MAX_NETWORKS);
if (ccnt < 0)
return (-1);
acnt = smb_wins_iplist(allow_list, acur_list, SMB_PI_MAX_NETWORKS);
if (acnt < 0)
return (0);
for (i = 0; i < acnt; i++) {
for (j = 0; j < ccnt; j++) {
if (ncur_list[j] == (in_addr_t)(-1))
continue;
if (ncur_list[j] == acur_list[i]) {
ncur_list[j] = (in_addr_t)(-1);
}
}
}
smb_wins_build_list(config_list, ncur_list, ccnt);
return (0);
}
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