17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*cb5caa98Sdjl * Common Development and Distribution License (the "License").
6*cb5caa98Sdjl * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*cb5caa98Sdjl * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate #include <netdb.h>
277c478bd9Sstevel@tonic-gate #include <netinet/in.h>
287c478bd9Sstevel@tonic-gate #include <arpa/inet.h>
297c478bd9Sstevel@tonic-gate #include <sys/socket.h>
307c478bd9Sstevel@tonic-gate #include "ns_internal.h"
317c478bd9Sstevel@tonic-gate #include "ldap_common.h"
327c478bd9Sstevel@tonic-gate
337c478bd9Sstevel@tonic-gate /* networks attributes filters */
347c478bd9Sstevel@tonic-gate #define _N_NAME "cn"
357c478bd9Sstevel@tonic-gate #define _N_NETWORK "ipnetworknumber"
367c478bd9Sstevel@tonic-gate #define _F_GETNETBYNAME "(&(objectClass=ipNetwork)(cn=%s))"
377c478bd9Sstevel@tonic-gate #define _F_GETNETBYNAME_SSD "(&(%%s)(cn=%s))"
38*cb5caa98Sdjl #define _F_GETNETBYADDR "(&(objectClass=ipNetwork)(|(ipNetworkNumber=%s)" \
39*cb5caa98Sdjl "(ipNetworkNumber=%s)))"
40*cb5caa98Sdjl #define _F_GETNETBYADDR_SSD "(&(%%s)(|(ipNetworkNumber=%s)" \
41*cb5caa98Sdjl "(ipNetworkNumber=%s)))"
427c478bd9Sstevel@tonic-gate
437c478bd9Sstevel@tonic-gate static const char *networks_attrs[] = {
447c478bd9Sstevel@tonic-gate _N_NAME,
457c478bd9Sstevel@tonic-gate _N_NETWORK,
467c478bd9Sstevel@tonic-gate (char *)NULL
477c478bd9Sstevel@tonic-gate };
487c478bd9Sstevel@tonic-gate
497c478bd9Sstevel@tonic-gate /*
50*cb5caa98Sdjl * _nss_ldap_networks2str is the data marshaling method for the networks
517c478bd9Sstevel@tonic-gate * getXbyY * (e.g., getbyname(), getbyaddr(), getnetent() backend processes.
527c478bd9Sstevel@tonic-gate * This method is called after a successful ldap search has been performed.
53*cb5caa98Sdjl * This method will parse the ldap search values into the file format.
54*cb5caa98Sdjl * e.g.
55*cb5caa98Sdjl *
56*cb5caa98Sdjl * SunRay-ce2 10.34.96.0 SunRay
57*cb5caa98Sdjl *
587c478bd9Sstevel@tonic-gate */
597c478bd9Sstevel@tonic-gate static int
_nss_ldap_networks2str(ldap_backend_ptr be,nss_XbyY_args_t * argp)60*cb5caa98Sdjl _nss_ldap_networks2str(ldap_backend_ptr be, nss_XbyY_args_t *argp)
617c478bd9Sstevel@tonic-gate {
62*cb5caa98Sdjl uint_t i;
637c478bd9Sstevel@tonic-gate int nss_result;
64*cb5caa98Sdjl int buflen = 0, len;
65*cb5caa98Sdjl char **network, *cname = NULL;
66*cb5caa98Sdjl char *buffer = NULL;
677c478bd9Sstevel@tonic-gate ns_ldap_result_t *result = be->result;
68*cb5caa98Sdjl ns_ldap_attr_t *names;
697c478bd9Sstevel@tonic-gate
70*cb5caa98Sdjl if (result == NULL)
71*cb5caa98Sdjl return (NSS_STR_PARSE_PARSE);
72*cb5caa98Sdjl buflen = argp->buf.buflen;
737c478bd9Sstevel@tonic-gate
74*cb5caa98Sdjl if (argp->buf.result != NULL) {
75*cb5caa98Sdjl if ((be->buffer = calloc(1, buflen)) == NULL) {
76*cb5caa98Sdjl nss_result = NSS_STR_PARSE_PARSE;
77*cb5caa98Sdjl goto result_net2str;
78*cb5caa98Sdjl }
79*cb5caa98Sdjl buffer = be->buffer;
80*cb5caa98Sdjl } else
81*cb5caa98Sdjl buffer = argp->buf.buffer;
82*cb5caa98Sdjl
83*cb5caa98Sdjl nss_result = NSS_STR_PARSE_SUCCESS;
847c478bd9Sstevel@tonic-gate (void) memset(argp->buf.buffer, 0, buflen);
857c478bd9Sstevel@tonic-gate
86*cb5caa98Sdjl names = __ns_ldap_getAttrStruct(result->entry, _N_NAME);
87*cb5caa98Sdjl if (names == NULL || names->attrvalue == NULL) {
88*cb5caa98Sdjl nss_result = NSS_STR_PARSE_PARSE;
89*cb5caa98Sdjl goto result_net2str;
907c478bd9Sstevel@tonic-gate }
91*cb5caa98Sdjl /* Get the canonical name */
92*cb5caa98Sdjl cname = __s_api_get_canonical_name(result->entry, names, 1);
93*cb5caa98Sdjl /*
94*cb5caa98Sdjl * The definition of the object class "ipNetwork" has a
95*cb5caa98Sdjl * discrepency between RFC 2307 and 2307bis.
96*cb5caa98Sdjl * In 2307, "cn" is a MUST attribute. In 2307bis, "cn" is a
97*cb5caa98Sdjl * MAY attribute.
98*cb5caa98Sdjl * If "cn" is a MAY attribute, it does not appear in RDN and can't
99*cb5caa98Sdjl * be derived from RDN as a canonical "cn" name. In that case, use 1st
100*cb5caa98Sdjl * "cn" value as the official name.
101*cb5caa98Sdjl */
102*cb5caa98Sdjl if (cname == NULL)
103*cb5caa98Sdjl /* 2307bis case */
104*cb5caa98Sdjl cname = names->attrvalue[0];
105*cb5caa98Sdjl if (cname == NULL || (len = strlen(cname)) < 1) {
106*cb5caa98Sdjl nss_result = NSS_STR_PARSE_PARSE;
107*cb5caa98Sdjl goto result_net2str;
108*cb5caa98Sdjl }
109*cb5caa98Sdjl network = __ns_ldap_getAttr(result->entry, _N_NETWORK);
110*cb5caa98Sdjl if (network == NULL || network[0] == NULL ||
111*cb5caa98Sdjl (len = strlen(network[0])) < 1) {
112*cb5caa98Sdjl nss_result = NSS_STR_PARSE_PARSE;
113*cb5caa98Sdjl goto result_net2str;
114*cb5caa98Sdjl }
115*cb5caa98Sdjl len = snprintf(buffer, buflen, "%s %s", cname, network[0]);
116*cb5caa98Sdjl TEST_AND_ADJUST(len, buffer, buflen, result_net2str);
117*cb5caa98Sdjl /* Append aliases */
118*cb5caa98Sdjl for (i = 0; i < names->value_count; i++) {
119*cb5caa98Sdjl if (names->attrvalue[i] == NULL) {
120*cb5caa98Sdjl nss_result = NSS_STR_PARSE_PARSE;
121*cb5caa98Sdjl goto result_net2str;
1227c478bd9Sstevel@tonic-gate }
123*cb5caa98Sdjl /* Skip the canonical name */
124*cb5caa98Sdjl if (strcasecmp(names->attrvalue[i], cname) != 0) {
125*cb5caa98Sdjl len = snprintf(buffer, buflen, " %s",
126*cb5caa98Sdjl names->attrvalue[i]);
127*cb5caa98Sdjl TEST_AND_ADJUST(len, buffer, buflen, result_net2str);
1287c478bd9Sstevel@tonic-gate }
1297c478bd9Sstevel@tonic-gate }
1307c478bd9Sstevel@tonic-gate
131*cb5caa98Sdjl /* The front end marshaller doesn't need to copy trailing nulls */
132*cb5caa98Sdjl if (argp->buf.result != NULL)
133*cb5caa98Sdjl be->buflen = strlen(be->buffer);
134*cb5caa98Sdjl
135*cb5caa98Sdjl result_net2str:
1367c478bd9Sstevel@tonic-gate
1377c478bd9Sstevel@tonic-gate (void) __ns_ldap_freeResult(&be->result);
138*cb5caa98Sdjl return (nss_result);
1397c478bd9Sstevel@tonic-gate }
1407c478bd9Sstevel@tonic-gate
1417c478bd9Sstevel@tonic-gate /*
1427c478bd9Sstevel@tonic-gate * Takes an unsigned integer in host order, and returns a printable
1437c478bd9Sstevel@tonic-gate * string for it as a network number. To allow for the possibility of
1447c478bd9Sstevel@tonic-gate * naming subnets, only trailing dot-zeros are truncated.
145*cb5caa98Sdjl * buf2 is untruncated version.
1467c478bd9Sstevel@tonic-gate */
1477c478bd9Sstevel@tonic-gate
nettoa(int anet,char * buf,char * buf2,int buflen)148*cb5caa98Sdjl static int nettoa(int anet, char *buf, char *buf2, int buflen)
1497c478bd9Sstevel@tonic-gate {
1507c478bd9Sstevel@tonic-gate int addr;
1517c478bd9Sstevel@tonic-gate char *p;
1527c478bd9Sstevel@tonic-gate struct in_addr in;
1537c478bd9Sstevel@tonic-gate
154*cb5caa98Sdjl if (buf == NULL || buf2 == NULL)
1557c478bd9Sstevel@tonic-gate return ((int)1);
1567c478bd9Sstevel@tonic-gate
1577c478bd9Sstevel@tonic-gate in = inet_makeaddr(anet, INADDR_ANY);
1587c478bd9Sstevel@tonic-gate addr = in.s_addr;
159*cb5caa98Sdjl if (inet_ntop(AF_INET, (const void *)&in, buf2, INET_ADDRSTRLEN)
160*cb5caa98Sdjl == NULL)
161*cb5caa98Sdjl return ((int)1);
162*cb5caa98Sdjl if (strlcpy(buf, buf2, buflen) >= buflen)
1637c478bd9Sstevel@tonic-gate return ((int)1);
1647c478bd9Sstevel@tonic-gate if ((IN_CLASSA_HOST & htonl(addr)) == 0) {
1657c478bd9Sstevel@tonic-gate p = strchr(buf, '.');
1667c478bd9Sstevel@tonic-gate if (p == NULL)
1677c478bd9Sstevel@tonic-gate return ((int)1);
1687c478bd9Sstevel@tonic-gate *p = 0;
1697c478bd9Sstevel@tonic-gate } else if ((IN_CLASSB_HOST & htonl(addr)) == 0) {
1707c478bd9Sstevel@tonic-gate p = strchr(buf, '.');
1717c478bd9Sstevel@tonic-gate if (p == NULL)
1727c478bd9Sstevel@tonic-gate return ((int)1);
1737c478bd9Sstevel@tonic-gate p = strchr(p + 1, '.');
1747c478bd9Sstevel@tonic-gate if (p == NULL)
1757c478bd9Sstevel@tonic-gate return ((int)1);
1767c478bd9Sstevel@tonic-gate *p = 0;
1777c478bd9Sstevel@tonic-gate } else if ((IN_CLASSC_HOST & htonl(addr)) == 0) {
1787c478bd9Sstevel@tonic-gate p = strrchr(buf, '.');
1797c478bd9Sstevel@tonic-gate if (p == NULL)
1807c478bd9Sstevel@tonic-gate return ((int)1);
1817c478bd9Sstevel@tonic-gate *p = 0;
1827c478bd9Sstevel@tonic-gate }
1837c478bd9Sstevel@tonic-gate
1847c478bd9Sstevel@tonic-gate return ((int)0);
1857c478bd9Sstevel@tonic-gate }
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate
1887c478bd9Sstevel@tonic-gate /*
1897c478bd9Sstevel@tonic-gate * getbyname gets a network entry by name. This function constructs an
1907c478bd9Sstevel@tonic-gate * ldap search filter using the network name invocation parameter and the
1917c478bd9Sstevel@tonic-gate * getnetbyname search filter defined. Once the filter is constructed, we
1927c478bd9Sstevel@tonic-gate * search for a matching entry and marshal the data results into struct
1937c478bd9Sstevel@tonic-gate * netent for the frontend process. The function _nss_ldap_networks2ent
1947c478bd9Sstevel@tonic-gate * performs the data marshaling.
1957c478bd9Sstevel@tonic-gate */
1967c478bd9Sstevel@tonic-gate
1977c478bd9Sstevel@tonic-gate static nss_status_t
getbyname(ldap_backend_ptr be,void * a)1987c478bd9Sstevel@tonic-gate getbyname(ldap_backend_ptr be, void *a)
1997c478bd9Sstevel@tonic-gate {
2007c478bd9Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
2017c478bd9Sstevel@tonic-gate char searchfilter[SEARCHFILTERLEN];
2027c478bd9Sstevel@tonic-gate char userdata[SEARCHFILTERLEN];
2037c478bd9Sstevel@tonic-gate char netname[SEARCHFILTERLEN];
2047c478bd9Sstevel@tonic-gate int ret;
2057c478bd9Sstevel@tonic-gate
2067c478bd9Sstevel@tonic-gate if (_ldap_filter_name(netname, argp->key.name, sizeof (netname)) != 0)
2077c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_NOTFOUND);
2087c478bd9Sstevel@tonic-gate
2097c478bd9Sstevel@tonic-gate ret = snprintf(searchfilter, sizeof (searchfilter),
2107c478bd9Sstevel@tonic-gate _F_GETNETBYNAME, netname);
2117c478bd9Sstevel@tonic-gate if (ret >= sizeof (searchfilter) || ret < 0)
2127c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_NOTFOUND);
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate ret = snprintf(userdata, sizeof (userdata),
2157c478bd9Sstevel@tonic-gate _F_GETNETBYNAME_SSD, netname);
2167c478bd9Sstevel@tonic-gate if (ret >= sizeof (userdata) || ret < 0)
2177c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_NOTFOUND);
2187c478bd9Sstevel@tonic-gate
2197c478bd9Sstevel@tonic-gate return ((nss_status_t)_nss_ldap_lookup(be, argp,
2207c478bd9Sstevel@tonic-gate _NETWORKS, searchfilter, NULL,
2217c478bd9Sstevel@tonic-gate _merge_SSD_filter, userdata));
2227c478bd9Sstevel@tonic-gate }
2237c478bd9Sstevel@tonic-gate
2247c478bd9Sstevel@tonic-gate
2257c478bd9Sstevel@tonic-gate /*
2267c478bd9Sstevel@tonic-gate * getbyaddr gets a network entry by ip address. This function constructs an
2277c478bd9Sstevel@tonic-gate * ldap search filter using the name invocation parameter and the getnetbyaddr
2287c478bd9Sstevel@tonic-gate * search filter defined. Once the filter is constructed, we search for a
2297c478bd9Sstevel@tonic-gate * matching entry and marshal the data results into struct netent for the
2307c478bd9Sstevel@tonic-gate * frontend process. The function _nss_ldap_networks2ent performs the data
2317c478bd9Sstevel@tonic-gate * marshaling.
2327c478bd9Sstevel@tonic-gate */
2337c478bd9Sstevel@tonic-gate
2347c478bd9Sstevel@tonic-gate static nss_status_t
getbyaddr(ldap_backend_ptr be,void * a)2357c478bd9Sstevel@tonic-gate getbyaddr(ldap_backend_ptr be, void *a)
2367c478bd9Sstevel@tonic-gate {
2377c478bd9Sstevel@tonic-gate nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
238*cb5caa98Sdjl char addrstr[INET_ADDRSTRLEN], addrstr2[INET_ADDRSTRLEN];
2397c478bd9Sstevel@tonic-gate char searchfilter[SEARCHFILTERLEN];
2407c478bd9Sstevel@tonic-gate char userdata[SEARCHFILTERLEN];
2417c478bd9Sstevel@tonic-gate int ret;
2427c478bd9Sstevel@tonic-gate
243*cb5caa98Sdjl if (nettoa((int)argp->key.netaddr.net, addrstr, addrstr2,
244*cb5caa98Sdjl INET_ADDRSTRLEN) != 0)
2457c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_UNAVAIL);
2467c478bd9Sstevel@tonic-gate
2477c478bd9Sstevel@tonic-gate ret = snprintf(searchfilter, sizeof (searchfilter),
248*cb5caa98Sdjl _F_GETNETBYADDR, addrstr, addrstr2);
2497c478bd9Sstevel@tonic-gate if (ret >= sizeof (searchfilter) || ret < 0)
2507c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_NOTFOUND);
2517c478bd9Sstevel@tonic-gate
2527c478bd9Sstevel@tonic-gate ret = snprintf(userdata, sizeof (userdata),
253*cb5caa98Sdjl _F_GETNETBYADDR_SSD, addrstr, addrstr2);
2547c478bd9Sstevel@tonic-gate if (ret >= sizeof (userdata) || ret < 0)
2557c478bd9Sstevel@tonic-gate return ((nss_status_t)NSS_NOTFOUND);
2567c478bd9Sstevel@tonic-gate
2577c478bd9Sstevel@tonic-gate return ((nss_status_t)_nss_ldap_lookup(be, argp,
2587c478bd9Sstevel@tonic-gate _NETWORKS, searchfilter, NULL,
2597c478bd9Sstevel@tonic-gate _merge_SSD_filter, userdata));
2607c478bd9Sstevel@tonic-gate }
2617c478bd9Sstevel@tonic-gate
2627c478bd9Sstevel@tonic-gate static ldap_backend_op_t net_ops[] = {
2637c478bd9Sstevel@tonic-gate _nss_ldap_destr,
2647c478bd9Sstevel@tonic-gate _nss_ldap_endent,
2657c478bd9Sstevel@tonic-gate _nss_ldap_setent,
2667c478bd9Sstevel@tonic-gate _nss_ldap_getent,
2677c478bd9Sstevel@tonic-gate getbyname,
2687c478bd9Sstevel@tonic-gate getbyaddr
2697c478bd9Sstevel@tonic-gate };
2707c478bd9Sstevel@tonic-gate
2717c478bd9Sstevel@tonic-gate
2727c478bd9Sstevel@tonic-gate /*
2737c478bd9Sstevel@tonic-gate * _nss_ldap_networks_constr is where life begins. This function calls the
2747c478bd9Sstevel@tonic-gate * generic ldap constructor function to define and build the abstract data
2757c478bd9Sstevel@tonic-gate * types required to support ldap operations.
2767c478bd9Sstevel@tonic-gate */
2777c478bd9Sstevel@tonic-gate
2787c478bd9Sstevel@tonic-gate /*ARGSUSED0*/
2797c478bd9Sstevel@tonic-gate nss_backend_t *
_nss_ldap_networks_constr(const char * dummy1,const char * dummy2,const char * dummy3)2807c478bd9Sstevel@tonic-gate _nss_ldap_networks_constr(const char *dummy1, const char *dummy2,
2817c478bd9Sstevel@tonic-gate const char *dummy3)
2827c478bd9Sstevel@tonic-gate {
2837c478bd9Sstevel@tonic-gate
2847c478bd9Sstevel@tonic-gate return ((nss_backend_t *)_nss_ldap_constr(net_ops,
2857c478bd9Sstevel@tonic-gate sizeof (net_ops)/sizeof (net_ops[0]), _NETWORKS,
286*cb5caa98Sdjl networks_attrs, _nss_ldap_networks2str));
2877c478bd9Sstevel@tonic-gate }
288