host.c revision 1.1.1.6 
1/*	$NetBSD: host.c,v 1.1.1.6 2018/02/06 01:53:06 christos Exp $	*/
2
3/* host.c - host lookup routines */
4/* $OpenLDAP$ */
5/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2008-2017 The OpenLDAP Foundation.
8 * Portions Copyright 2008 by Howard Chu, Symas Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted only as authorized by the OpenLDAP
13 * Public License.
14 *
15 * A copy of this license is available in the file LICENSE in the
16 * top-level directory of the distribution or, alternatively, at
17 * <http://www.OpenLDAP.org/license.html>.
18 */
19/* ACKNOWLEDGEMENTS:
20 * This code references portions of the nss-ldapd package
21 * written by Arthur de Jong. The nss-ldapd code was forked
22 * from the nss-ldap library written by Luke Howard.
23 */
24
25#include "nssov.h"
26
27/* ( nisSchema.2.6 NAME 'ipHost' SUP top AUXILIARY
28 *	 DESC 'Abstraction of a host, an IP device. The distinguished
29 *				 value of the cn attribute denotes the host's canonical
30 *				 name. Device SHOULD be used as a structural class'
31 *	 MUST ( cn $ ipHostNumber )
32 *	 MAY ( l $ description $ manager ) )
33 */
34
35/* the basic search filter for searches */
36static struct berval host_filter = BER_BVC("(objectClass=ipHost)");
37
38/* the attributes to request with searches */
39static struct berval host_keys[] = {
40	BER_BVC("cn"),
41	BER_BVC("ipHostNumber"),
42	BER_BVNULL
43};
44
45NSSOV_INIT(host)
46
47NSSOV_CBPRIV(host,
48	char buf[1024];
49	struct berval name;
50	struct berval addr;);
51
52/* write a single host entry to the stream */
53static int write_host(nssov_host_cbp *cbp,Entry *entry)
54{
55	int32_t tmpint32;
56	int numaddr,i,numname,dupname;
57	struct berval name,*names,*addrs;
58	Attribute *a;
59
60	/* get the most canonical name */
61	nssov_find_rdnval( &entry->e_nname, cbp->mi->mi_attrs[0].an_desc, &name );
62	/* get the other names for the host */
63	a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[0].an_desc );
64	if ( !a || !a->a_vals )
65	{
66		Debug(LDAP_DEBUG_ANY,"host entry %s does not contain %s value\n",
67			entry->e_name.bv_val, cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val, 0 );
68		return 0;
69	}
70	names = a->a_vals;
71	numname = a->a_numvals;
72	/* if the name is not yet found, get the first entry from names */
73	if (BER_BVISNULL(&name)) {
74		name=names[0];
75		dupname = 0;
76	} else {
77		dupname = -1;
78		for (i=0; i<numname; i++) {
79			if ( bvmatch(&name, &a->a_nvals[i])) {
80				dupname = i;
81				break;
82			}
83		}
84	}
85	/* get the addresses */
86	a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[1].an_desc );
87	if ( !a || !a->a_vals )
88	{
89		Debug(LDAP_DEBUG_ANY,"host entry %s does not contain %s value\n",
90			entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val, 0 );
91		return 0;
92	}
93	addrs = a->a_vals;
94	numaddr = a->a_numvals;
95	/* write the entry */
96	WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
97	WRITE_BERVAL(cbp->fp,&name);
98	if ( dupname >= 0 ) {
99		WRITE_INT32(cbp->fp,numname-1);
100	} else {
101		WRITE_INT32(cbp->fp,numname);
102	}
103	for (i=0;i<numname;i++) {
104		if (i == dupname) continue;
105		WRITE_BERVAL(cbp->fp,&names[i]);
106	}
107	WRITE_INT32(cbp->fp,numaddr);
108	for (i=0;i<numaddr;i++)
109	{
110		WRITE_ADDRESS(cbp->fp,&addrs[i]);
111	}
112	return 0;
113}
114
115NSSOV_CB(host)
116
117NSSOV_HANDLE(
118	host,byname,
119	char fbuf[1024];
120	struct berval filter = {sizeof(fbuf)};
121	filter.bv_val = fbuf;
122	BER_BVZERO(&cbp.addr);
123	READ_STRING(fp,cbp.buf);
124	cbp.name.bv_len = tmpint32;
125	cbp.name.bv_val = cbp.buf;,
126	Debug(LDAP_DEBUG_TRACE,"nssov_host_byname(%s)\n",cbp.name.bv_val,0,0);,
127	NSLCD_ACTION_HOST_BYNAME,
128	nssov_filter_byname(cbp.mi,0,&cbp.name,&filter)
129)
130
131NSSOV_HANDLE(
132	host,byaddr,
133	int af;
134	char addr[64];
135	int len=sizeof(addr);
136	char fbuf[1024];
137	struct berval filter = {sizeof(fbuf)};
138	filter.bv_val = fbuf;
139	BER_BVZERO(&cbp.name);
140	READ_ADDRESS(fp,addr,len,af);
141	/* translate the address to a string */
142	if (inet_ntop(af,addr,cbp.buf,sizeof(cbp.buf))==NULL)
143	{
144		Debug(LDAP_DEBUG_ANY,"nssov: unable to convert address to string\n",0,0,0);
145		return -1;
146	}
147	cbp.addr.bv_val = cbp.buf;
148	cbp.addr.bv_len = strlen(cbp.buf);,
149	Debug(LDAP_DEBUG_TRACE,"nssov_host_byaddr(%s)\n",cbp.addr.bv_val,0,0);,
150	NSLCD_ACTION_HOST_BYADDR,
151	nssov_filter_byid(cbp.mi,1,&cbp.addr,&filter)
152)
153
154NSSOV_HANDLE(
155	host,all,
156	struct berval filter;
157	/* no parameters to read */
158	BER_BVZERO(&cbp.name);
159	BER_BVZERO(&cbp.addr);,
160	Debug(LDAP_DEBUG_TRACE,"nssov_host_all()\n",0,0,0);,
161	NSLCD_ACTION_HOST_ALL,
162	(filter=cbp.mi->mi_filter,0)
163)
164