1 /* $NetBSD: ether.c,v 1.3 2021/08/14 16:14:52 christos Exp $ */
2
3 /* ether.c - ethernet address lookup routines */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2008-2021 The OpenLDAP Foundation.
8 * 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 struct ether_addr {
28 uint8_t ether_addr_octet[6];
29 };
30
31 /* ( nisSchema.2.11 NAME 'ieee802Device' SUP top AUXILIARY
32 * DESC 'A device with a MAC address; device SHOULD be
33 * used as a structural class'
34 * MAY macAddress )
35 */
36
37 /* the basic search filter for searches */
38 static struct berval ether_filter = BER_BVC("(objectClass=ieee802Device)");
39
40 /* the attributes to request with searches */
41 static struct berval ether_keys[] = {
42 BER_BVC("cn"),
43 BER_BVC("macAddress"),
44 BER_BVNULL
45 };
46
47 NSSOV_INIT(ether)
48
49 NSSOV_CBPRIV(ether,
50 char buf[256];
51 struct berval name;
52 struct berval addr;);
53
54 #define WRITE_ETHER(fp,addr) \
55 {int ao[6]; \
56 sscanf(addr.bv_val,"%02x:%02x:%02x:%02x:%02x:%02x", \
57 &ao[0], &ao[1], &ao[2], &ao[3], &ao[4], &ao[5] );\
58 tmpaddr.ether_addr_octet[0] = ao[0]; \
59 tmpaddr.ether_addr_octet[1] = ao[1]; \
60 tmpaddr.ether_addr_octet[2] = ao[2]; \
61 tmpaddr.ether_addr_octet[3] = ao[3]; \
62 tmpaddr.ether_addr_octet[4] = ao[4]; \
63 tmpaddr.ether_addr_octet[5] = ao[5]; } \
64 WRITE(fp,&tmpaddr,sizeof(uint8_t[6]));
65
write_ether(nssov_ether_cbp * cbp,Entry * entry)66 static int write_ether(nssov_ether_cbp *cbp,Entry *entry)
67 {
68 int32_t tmpint32;
69 struct ether_addr tmpaddr;
70 struct berval tmparr[2];
71 struct berval *names,*ethers;
72 Attribute *a;
73 int i,j;
74
75 /* get the name of the ether entry */
76 if (BER_BVISNULL(&cbp->name))
77 {
78 a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[0].an_desc);
79 if ( !a )
80 {
81 Debug(LDAP_DEBUG_ANY,"ether entry %s does not contain %s value\n",
82 entry->e_name.bv_val,cbp->mi->mi_attrs[0].an_desc->ad_cname.bv_val );
83 return 0;
84 }
85 names = a->a_vals;
86 }
87 else
88 {
89 names=tmparr;
90 names[0]=cbp->name;
91 BER_BVZERO(&names[1]);
92 }
93 /* get the addresses */
94 if (BER_BVISNULL(&cbp->addr))
95 {
96 a = attr_find(entry->e_attrs, cbp->mi->mi_attrs[1].an_desc);
97 if ( !a )
98 {
99 Debug(LDAP_DEBUG_ANY,"ether entry %s does not contain %s value\n",
100 entry->e_name.bv_val,cbp->mi->mi_attrs[1].an_desc->ad_cname.bv_val );
101 return 0;
102 }
103 ethers = a->a_vals;
104 /* TODO: move parsing of addresses up here */
105 }
106 else
107 {
108 ethers=tmparr;
109 ethers[0]=cbp->addr;
110 BER_BVZERO(ðers[1]);
111 }
112 /* write entries for all names and addresses */
113 for (i=0;!BER_BVISNULL(&names[i]);i++)
114 for (j=0;!BER_BVISNULL(ðers[j]);j++)
115 {
116 WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN);
117 WRITE_BERVAL(cbp->fp,&names[i]);
118 WRITE_ETHER(cbp->fp,ethers[j]);
119 }
120 return 0;
121 }
122
123 NSSOV_CB(ether)
124
125 NSSOV_HANDLE(
126 ether,byname,
127 char fbuf[1024];
128 struct berval filter = {sizeof(fbuf)};
129 filter.bv_val = fbuf;
130 BER_BVZERO(&cbp.addr);
131 READ_STRING(fp,cbp.buf);
132 cbp.name.bv_len = tmpint32;
133 cbp.name.bv_val = cbp.buf;,
134 Debug(LDAP_DEBUG_TRACE,"nssov_ether_byname(%s)\n",cbp.name.bv_val);,
135 NSLCD_ACTION_ETHER_BYNAME,
136 nssov_filter_byname(cbp.mi,0,&cbp.name,&filter)
137 )
138
139 NSSOV_HANDLE(
140 ether,byether,
141 struct ether_addr addr;
142 char fbuf[1024];
143 struct berval filter = {sizeof(fbuf)};
144 filter.bv_val = fbuf;
145 BER_BVZERO(&cbp.name);
146 READ(fp,&addr,sizeof(uint8_t[6]));
147 cbp.addr.bv_len = snprintf(cbp.buf,sizeof(cbp.buf), "%x:%x:%x:%x:%x:%x",
148 addr.ether_addr_octet[0],
149 addr.ether_addr_octet[1],
150 addr.ether_addr_octet[2],
151 addr.ether_addr_octet[3],
152 addr.ether_addr_octet[4],
153 addr.ether_addr_octet[5]);
154 cbp.addr.bv_val = cbp.buf;,
155 Debug(LDAP_DEBUG_TRACE,"nssov_ether_byether(%s)\n",cbp.addr.bv_val);,
156 NSLCD_ACTION_ETHER_BYETHER,
157 nssov_filter_byid(cbp.mi,1,&cbp.addr,&filter)
158 )
159
160 NSSOV_HANDLE(
161 ether,all,
162 struct berval filter;
163 /* no parameters to read */
164 BER_BVZERO(&cbp.name);
165 BER_BVZERO(&cbp.addr);,
166 Debug(LDAP_DEBUG_TRACE,"nssov_ether_all()\n");,
167 NSLCD_ACTION_ETHER_ALL,
168 (filter=cbp.mi->mi_filter,0)
169 )
170