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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <netdb.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/socket.h>
#include "ldap_common.h"
/* netmasks attributes filters */
#define _N_NETWORK "ipnetworknumber"
#define _N_NETMASK "ipnetmasknumber"
#define _F_GETMASKBYNET "(&(objectClass=ipNetwork)(ipNetworkNumber=%s))"
#define _F_GETMASKBYNET_SSD "(&(%%s)(ipNetworkNumber=%s))"
static const char *netmasks_attrs[] = {
_N_NETWORK,
_N_NETMASK,
(char *)NULL
};
/*
* _nss_ldap_netmasks2ent is the data marshaling method for the netmasks
* getXbyY * (e.g., getbynet()) backend processes. This method is called
* after a successful ldap search has been performed. This method will
* parse the ldap search values into struct in_addr *mask = argp->buf.result
* only if argp->buf.result is initialized (not NULL). Three error
* conditions are expected and returned to nsswitch.
*/
static int
_nss_ldap_netmasks2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp)
{
int i, j;
int nss_result;
unsigned long len = 0L;
#ifdef DEBUG
char maskstr[16];
#endif /* DEBUG */
struct in_addr addr;
struct in_addr *mask = (struct in_addr *)NULL;
ns_ldap_result_t *result = be->result;
ns_ldap_attr_t *attrptr;
mask = (struct in_addr *)argp->buf.result;
nss_result = (int)NSS_STR_PARSE_SUCCESS;
attrptr = getattr(result, 0);
if (attrptr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_nmks2ent;
}
for (i = 0; i < result->entry->attr_count; i++) {
attrptr = getattr(result, i);
if (attrptr == NULL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_nmks2ent;
}
if (strcasecmp(attrptr->attrname, _N_NETMASK) == 0) {
for (j = 0; j < attrptr->value_count; j++) {
if (mask == NULL)
continue;
if ((attrptr->attrvalue[j] == NULL) ||
(len = strlen(attrptr->attrvalue[j])) < 1) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_nmks2ent;
}
/* addr a IPv4 address and 32 bits */
addr.s_addr = inet_addr(attrptr->attrvalue[j]);
if (addr.s_addr == 0xffffffffUL) {
nss_result = (int)NSS_STR_PARSE_PARSE;
goto result_nmks2ent;
}
mask->s_addr = addr.s_addr;
#ifdef DEBUG
strlcpy(maskstr, attrptr->attrvalue[j],
sizeof (maskstr));
#endif /* DEBUG */
continue;
}
}
}
#ifdef DEBUG
(void) fprintf(stdout, "\n[netmasks.c: _nss_ldap_netmasks2ent]\n");
(void) fprintf(stdout, " netmask: [%s]\n", maskstr);
#endif /* DEBUG */
result_nmks2ent:
(void) __ns_ldap_freeResult(&be->result);
return ((int)nss_result);
}
/*
* getbynet gets a network mask by address. This function constructs an
* ldap search filter using the netmask name invocation parameter and the
* getmaskbynet search filter defined. Once the filter is constructed, we
* search for a matching entry and marshal the data results into struct
* in_addr for the frontend process. The function _nss_ldap_netmasks2ent
* performs the data marshaling.
*/
static nss_status_t
getbynet(ldap_backend_ptr be, void *a)
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
char searchfilter[SEARCHFILTERLEN];
char userdata[SEARCHFILTERLEN];
char netnumber[SEARCHFILTERLEN];
int ret;
if (_ldap_filter_name(netnumber, argp->key.name, sizeof (netnumber))
!= 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(searchfilter, sizeof (searchfilter),
_F_GETMASKBYNET, netnumber);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata),
_F_GETMASKBYNET_SSD, netnumber);
if (ret >= sizeof (userdata) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
return ((nss_status_t)_nss_ldap_lookup(be, argp,
_NETMASKS, searchfilter, NULL,
_merge_SSD_filter, userdata));
}
static ldap_backend_op_t netmasks_ops[] = {
_nss_ldap_destr,
getbynet
};
/*
* _nss_ldap_netmasks_constr is where life begins. This function calls
* the generic ldap constructor function to define and build the abstract
* data types required to support ldap operations.
*/
/*ARGSUSED0*/
nss_backend_t *
_nss_ldap_netmasks_constr(const char *dummy1, const char *dummy2,
const char *dummy3)
{
return ((nss_backend_t *)_nss_ldap_constr(netmasks_ops,
sizeof (netmasks_ops)/sizeof (netmasks_ops[0]), _NETMASKS,
netmasks_attrs, _nss_ldap_netmasks2ent));
}
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