1 /* network.c - network address lookup routines */
2 /* $OpenLDAP$ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 2008-2021 The OpenLDAP Foundation.
6 * Portions Copyright 2008 by Howard Chu, Symas Corp.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
11 * Public License.
12 *
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
16 */
17 /* ACKNOWLEDGEMENTS:
18 * This code references portions of the nss-ldapd package
19 * written by Arthur de Jong. The nss-ldapd code was forked
20 * from the nss-ldap library written by Luke Howard.
21 */
22
23 #include "nssov.h"
24
25 #include <ac/socket.h>
26
27 /* ( nisSchema.2.7 NAME 'ipNetwork' SUP top STRUCTURAL
28 * DESC 'Abstraction of a network. The distinguished value of
29 * MUST ( cn $ ipNetworkNumber )
30 * MAY ( ipNetmaskNumber $ l $ description $ manager ) )
31 */
32
33 /* the basic search filter for searches */
34 static struct berval network_filter = BER_BVC("(objectClass=ipNetwork)");
35
36 /* the attributes used in searches */
37 static struct berval network_keys[] = {
38 BER_BVC("cn"),
39 BER_BVC("ipNetworkNumber"),
40 BER_BVNULL
41 };
42
43 NSSOV_INIT(network)
44
45 NSSOV_CBPRIV(network,
46 char buf[1024];
47 struct berval name;
48 struct berval addr;);
49
50 /* write a single network entry to the stream */
write_network(nssov_network_cbp * cbp,Entry * entry)51 static int write_network(nssov_network_cbp *cbp,Entry *entry)
52 {
53 int32_t tmpint32;
54 int numaddr,i,numname,dupname;
55 struct berval name, *names, *addrs;
56 Attribute *a;
57
58 /* get the most canonical name */
59 nssov_find_rdnval( &entry->e_nname, cbp->mi->mi_attrs[0].an_desc, &name);
60 /* get the other names for the network */
61 a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[0].an_desc );
62 if ( !a || !a->a_vals )
63 {
64 Debug(LDAP_DEBUG_ANY,"network entry %s does not contain %s value\n",
65 entry->e_name.bv_val,cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val );
66 return 0;
67 }
68 names = a->a_vals;
69 numname = a->a_numvals;
70 /* if the name is not yet found, get the first entry from names */
71 if (BER_BVISNULL(&name)) {
72 name=names[0];
73 dupname = 0;
74 } else {
75 dupname = -1;
76 for (i=0; i<numname; i++) {
77 if ( bvmatch(&name, &a->a_nvals[i])) {
78 dupname = i;
79 break;
80 }
81 }
82 }
83 /* get the addresses */
84 a = attr_find( entry->e_attrs, cbp->mi->mi_attrs[1].an_desc );
85 if ( !a || !a->a_vals )
86 {
87 Debug(LDAP_DEBUG_ANY,"network entry %s does not contain %s value\n",
88 entry->e_name.bv_val, cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
89 return 0;
90 }
91 addrs = a->a_vals;
92 numaddr = a->a_numvals;
93 /* write the entry */
94 WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
95 WRITE_BERVAL(cbp->fp,&name);
96 if ( dupname >= 0 ) {
97 WRITE_INT32(cbp->fp,numname-1);
98 } else {
99 WRITE_INT32(cbp->fp,numname);
100 }
101 for (i=0;i<numname;i++) {
102 if (i == dupname) continue;
103 WRITE_BERVAL(cbp->fp,&names[i]);
104 }
105 WRITE_INT32(cbp->fp,numaddr);
106 for (i=0;i<numaddr;i++)
107 {
108 WRITE_ADDRESS(cbp->fp,&addrs[i]);
109 }
110 return 0;
111 }
112
113 NSSOV_CB(network)
114
115 NSSOV_HANDLE(
116 network,byname,
117 char fbuf[1024];
118 struct berval filter = {sizeof(fbuf)};
119 filter.bv_val = fbuf;
120 BER_BVZERO(&cbp.addr);
121 READ_STRING(fp,cbp.buf);
122 cbp.name.bv_len = tmpint32;
123 cbp.name.bv_val = cbp.buf;,
124 Debug(LDAP_DEBUG_TRACE,"nssov_network_byname(%s)\n",cbp.name.bv_val);,
125 NSLCD_ACTION_NETWORK_BYNAME,
126 nssov_filter_byname(cbp.mi,0,&cbp.name,&filter)
127 )
128
129 NSSOV_HANDLE(
130 network,byaddr,
131 int af;
132 char addr[64];
133 int len=sizeof(addr);
134 char fbuf[1024];
135 struct berval filter = {sizeof(fbuf)};
136 filter.bv_val = fbuf;
137 BER_BVZERO(&cbp.name);
138 READ_ADDRESS(fp,addr,len,af);
139 /* translate the address to a string */
140 if (inet_ntop(af,addr,cbp.buf,sizeof(cbp.buf))==NULL)
141 {
142 Debug(LDAP_DEBUG_ANY,"nssov: unable to convert address to string\n");
143 return -1;
144 }
145 cbp.addr.bv_val = cbp.buf;
146 cbp.addr.bv_len = strlen(cbp.buf);,
147 Debug(LDAP_DEBUG_TRACE,"nslcd_network_byaddr(%s)\n",cbp.addr.bv_val);,
148 NSLCD_ACTION_NETWORK_BYADDR,
149 nssov_filter_byid(cbp.mi,1,&cbp.addr,&filter)
150 )
151
152 NSSOV_HANDLE(
153 network,all,
154 struct berval filter;
155 /* no parameters to read */
156 BER_BVZERO(&cbp.name);
157 BER_BVZERO(&cbp.addr);,
158 Debug(LDAP_DEBUG_TRACE,"nssov_network_all()\n");,
159 NSLCD_ACTION_NETWORK_ALL,
160 (filter=cbp.mi->mi_filter,0)
161 )
162