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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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/systeminfo.h>
#include "ns_internal.h"
#include "ldap_common.h"
/* host attributes filters */
/* probably some change in the ipHostNumber field */
#define _H_DN "dn"
#define _H_NAME "cn"
#define _H_ADDR "iphostnumber"
#define _F_GETHOSTS6BYNAME "(&(objectClass=ipHost)(cn=%s))"
#define _F_GETHOSTS6BYNAME_SSD "(&(%%s)(cn=%s))"
#define _F_GETHOSTS6DOTTEDBYNAME \
"(&(objectClass=ipHost)(|(cn=%s)(cn=%s)))"
#define _F_GETHOSTS6DOTTEDBYNAME_SSD \
"(&(%%s)(|(cn=%s)(cn=%s)))"
#define _F_GETHOSTS6BYADDR "(&(objectClass=ipHost)(ipHostNumber=%s))"
#define _F_GETHOSTS6BYADDR_SSD "(&(%%s)(ipHostNumber=%s))"
static const char *ipnodes_attrs[] = {
_H_NAME,
_H_ADDR,
(char *)NULL
};
extern int
_nss_ldap_hosts2str_int(int af, ldap_backend_ptr be, nss_XbyY_args_t *argp);
/*
* _nss_ldap_hosts2str is the data marshaling method for the ipnodes getXbyY
* system call gethostbyname() and gethostbyaddr.
* This method is called after a successful search has been performed.
* This method will parse the search results into the file format.
* e.g.
*
* fe80::a00:20ff:fec4:f2b6 ipnodes_1
*
*/
static int
_nss_ldap_hosts2str(ldap_backend_ptr be, nss_XbyY_args_t *argp) {
return (_nss_ldap_hosts2str_int(AF_INET6, be, argp));
}
/*
* getbyname gets a struct hostent by hostname. This function constructs
* an ldap search filter using the name invocation parameter and the
* gethostbyname search filter defined. Once the filter is constructed,
* we search for a matching entry and marshal the data results into
* struct hostent for the frontend process. Host name searches will be
* on fully qualified host names (foo.bar.sun.com)
*/
static nss_status_t
getbyname(ldap_backend_ptr be, void *a)
{
char hostname[3 * MAXHOSTNAMELEN];
char realdomain[BUFSIZ];
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
nss_status_t lstat;
char searchfilter[SEARCHFILTERLEN];
char userdata[SEARCHFILTERLEN];
int rc;
if (_ldap_filter_name(hostname, argp->key.ipnode.name,
sizeof (hostname)) != 0)
return ((nss_status_t)NSS_NOTFOUND);
rc = snprintf(searchfilter, sizeof (searchfilter),
_F_GETHOSTS6BYNAME, hostname);
if (rc >= sizeof (searchfilter) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
rc = snprintf(userdata, sizeof (userdata),
_F_GETHOSTS6BYNAME_SSD, hostname);
if (rc >= sizeof (userdata) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
/* get the domain we are in */
rc = sysinfo(SI_SRPC_DOMAIN, realdomain, BUFSIZ);
if (rc <= 0)
return ((nss_status_t)NSS_NOTFOUND);
/* Is this a request for a host.domain */
if (DOTTEDSUBDOMAIN(hostname)) {
char host[MAXHOSTNAMELEN];
char domain[MAXHOSTNAMELEN];
char hname[3 * MAXHOSTNAMELEN];
/* separate host and domain. this function */
/* will munge hname, so use argp->keyname */
/* from here on for original string */
(void) strcpy(hname, hostname);
if (chophostdomain(hname, host, domain) == -1) {
return ((nss_status_t)NSS_NOTFOUND);
}
/* if domain is a proper subset of realdomain */
/* ie. domain = "foo" and realdomain */
/* = "foor.bar.sun.com", we try to lookup both" */
/* host.domain and host */
if (propersubdomain(realdomain, domain) == 1) {
/* yes, it is a proper domain */
rc = snprintf(searchfilter, sizeof (searchfilter),
_F_GETHOSTS6DOTTEDBYNAME, hostname, host);
if (rc >= sizeof (searchfilter) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
rc = snprintf(userdata, sizeof (userdata),
_F_GETHOSTS6DOTTEDBYNAME_SSD, hostname, host);
if (rc >= sizeof (userdata) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
} else {
/* it is not a proper domain, so only try to look up */
/* host.domain */
rc = snprintf(searchfilter, sizeof (searchfilter),
_F_GETHOSTS6BYNAME, hostname);
if (rc >= sizeof (searchfilter) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
rc = snprintf(userdata, sizeof (userdata),
_F_GETHOSTS6BYNAME_SSD, hostname);
if (rc >= sizeof (userdata) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
}
} else {
rc = snprintf(searchfilter, sizeof (searchfilter),
_F_GETHOSTS6BYNAME, hostname);
if (rc >= sizeof (searchfilter) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
rc = snprintf(userdata, sizeof (userdata),
_F_GETHOSTS6BYNAME_SSD, hostname);
if (rc >= sizeof (userdata) || rc < 0)
return ((nss_status_t)NSS_NOTFOUND);
}
lstat = (nss_status_t)_nss_ldap_lookup(be, argp, _HOSTS,
searchfilter, NULL,
_merge_SSD_filter, userdata);
if (lstat == (nss_status_t)NS_LDAP_SUCCESS)
return ((nss_status_t)NSS_SUCCESS);
argp->h_errno = __nss2herrno(lstat);
return ((nss_status_t)lstat);
}
/*
* getbyaddr gets a struct hostent by host address. This function
* constructs an ldap search filter using the host address invocation
* parameter and the gethostbyaddr search filter defined. Once the
* filter is constructed, we search for a matching entry and marshal
* the data results into struct hostent for the frontend process.
*/
static nss_status_t
getbyaddr(ldap_backend_ptr be, void *a)
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
struct in6_addr addr;
char addrbuf[INET6_ADDRSTRLEN + 1];
nss_status_t lstat;
char searchfilter[SEARCHFILTERLEN];
char userdata[SEARCHFILTERLEN];
int ret;
argp->h_errno = 0;
if ((argp->key.hostaddr.type != AF_INET6) ||
(argp->key.hostaddr.len != sizeof (addr)))
return (NSS_NOTFOUND);
(void) memcpy(&addr, argp->key.hostaddr.addr, sizeof (addr));
if (IN6_IS_ADDR_V4MAPPED(&addr)) {
if (inet_ntop(AF_INET, (void *) &addr.s6_addr[12],
(void *)addrbuf, INET_ADDRSTRLEN) == NULL) {
return (NSS_NOTFOUND);
}
} else {
if (inet_ntop(AF_INET6, (void *)&addr, (void *)addrbuf,
INET6_ADDRSTRLEN) == NULL)
return (NSS_NOTFOUND);
}
ret = snprintf(searchfilter, sizeof (searchfilter),
_F_GETHOSTS6BYADDR, addrbuf);
if (ret >= sizeof (searchfilter) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
ret = snprintf(userdata, sizeof (userdata),
_F_GETHOSTS6BYADDR_SSD, addrbuf);
if (ret >= sizeof (userdata) || ret < 0)
return ((nss_status_t)NSS_NOTFOUND);
lstat = (nss_status_t)_nss_ldap_lookup(be, argp,
_HOSTS6, searchfilter, NULL,
_merge_SSD_filter, userdata);
if (lstat == (nss_status_t)NS_LDAP_SUCCESS)
return ((nss_status_t)NSS_SUCCESS);
argp->h_errno = __nss2herrno(lstat);
return ((nss_status_t)lstat);
}
static ldap_backend_op_t ipnodes_ops[] = {
_nss_ldap_destr,
0,
0,
0,
getbyname,
getbyaddr
};
/*
* _nss_ldap_hosts_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_ipnodes_constr(const char *dummy1, const char *dummy2,
const char *dummy3)
{
return ((nss_backend_t *)_nss_ldap_constr(ipnodes_ops,
sizeof (ipnodes_ops)/sizeof (ipnodes_ops[0]), _HOSTS6,
ipnodes_attrs, _nss_ldap_hosts2str));
}
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