1 /* $OpenLDAP: pkg/ldap/servers/slapd/back-sql/compare.c,v 1.24.2.5 2008/02/11 23:26:48 kurt Exp $ */ 2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 3 * 4 * Copyright 1999-2008 The OpenLDAP Foundation. 5 * Portions Copyright 1999 Dmitry Kovalev. 6 * Portions Copyright 2002 Pierangelo Masarati. 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 work was initially developed by Dmitry Kovalev for inclusion 19 * by OpenLDAP Software. Additional significant contributors include 20 * Pierangelo Masarati. 21 */ 22 23 #include "portable.h" 24 25 #include <stdio.h> 26 #include <sys/types.h> 27 28 #include "slap.h" 29 #include "proto-sql.h" 30 31 int 32 backsql_compare( Operation *op, SlapReply *rs ) 33 { 34 SQLHDBC dbh = SQL_NULL_HDBC; 35 Entry e = { 0 }; 36 Attribute *a = NULL; 37 backsql_srch_info bsi = { 0 }; 38 int rc; 39 int manageDSAit = get_manageDSAit( op ); 40 AttributeName anlist[2]; 41 42 Debug( LDAP_DEBUG_TRACE, "==>backsql_compare()\n", 0, 0, 0 ); 43 44 rs->sr_err = backsql_get_db_conn( op, &dbh ); 45 if ( rs->sr_err != LDAP_SUCCESS ) { 46 Debug( LDAP_DEBUG_TRACE, "backsql_compare(): " 47 "could not get connection handle - exiting\n", 48 0, 0, 0 ); 49 50 rs->sr_text = ( rs->sr_err == LDAP_OTHER ) 51 ? "SQL-backend error" : NULL; 52 goto return_results; 53 } 54 55 anlist[ 0 ].an_name = op->oq_compare.rs_ava->aa_desc->ad_cname; 56 anlist[ 0 ].an_desc = op->oq_compare.rs_ava->aa_desc; 57 BER_BVZERO( &anlist[ 1 ].an_name ); 58 59 /* 60 * Get the entry 61 */ 62 bsi.bsi_e = &e; 63 rc = backsql_init_search( &bsi, &op->o_req_ndn, LDAP_SCOPE_BASE, 64 (time_t)(-1), NULL, dbh, op, rs, anlist, 65 ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) ); 66 switch ( rc ) { 67 case LDAP_SUCCESS: 68 break; 69 70 case LDAP_REFERRAL: 71 if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) && 72 dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) ) 73 { 74 rs->sr_err = LDAP_SUCCESS; 75 rs->sr_text = NULL; 76 rs->sr_matched = NULL; 77 if ( rs->sr_ref ) { 78 ber_bvarray_free( rs->sr_ref ); 79 rs->sr_ref = NULL; 80 } 81 break; 82 } 83 /* fallthru */ 84 85 default: 86 Debug( LDAP_DEBUG_TRACE, "backsql_compare(): " 87 "could not retrieve compareDN ID - no such entry\n", 88 0, 0, 0 ); 89 goto return_results; 90 } 91 92 if ( get_assert( op ) && 93 ( test_filter( op, &e, get_assertion( op ) ) 94 != LDAP_COMPARE_TRUE ) ) 95 { 96 rs->sr_err = LDAP_ASSERTION_FAILED; 97 goto return_results; 98 } 99 100 if ( is_at_operational( op->oq_compare.rs_ava->aa_desc->ad_type ) ) { 101 SlapReply nrs = { 0 }; 102 Attribute **ap; 103 104 for ( ap = &e.e_attrs; *ap; ap = &(*ap)->a_next ) 105 ; 106 107 nrs.sr_attrs = anlist; 108 nrs.sr_entry = &e; 109 nrs.sr_attr_flags = SLAP_OPATTRS_NO; 110 nrs.sr_operational_attrs = NULL; 111 112 rs->sr_err = backsql_operational( op, &nrs ); 113 if ( rs->sr_err != LDAP_SUCCESS ) { 114 goto return_results; 115 } 116 117 *ap = nrs.sr_operational_attrs; 118 } 119 120 if ( ! access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc, 121 &op->oq_compare.rs_ava->aa_value, 122 ACL_COMPARE, NULL ) ) 123 { 124 rs->sr_err = LDAP_INSUFFICIENT_ACCESS; 125 goto return_results; 126 } 127 128 rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE; 129 for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc ); 130 a != NULL; 131 a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) ) 132 { 133 rs->sr_err = LDAP_COMPARE_FALSE; 134 if ( attr_valfind( a, 135 SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH | 136 SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, 137 &op->oq_compare.rs_ava->aa_value, NULL, 138 op->o_tmpmemctx ) == 0 ) 139 { 140 rs->sr_err = LDAP_COMPARE_TRUE; 141 break; 142 } 143 } 144 145 return_results:; 146 switch ( rs->sr_err ) { 147 case LDAP_COMPARE_TRUE: 148 case LDAP_COMPARE_FALSE: 149 break; 150 151 default: 152 if ( !BER_BVISNULL( &e.e_nname ) && 153 ! access_allowed( op, &e, 154 slap_schema.si_ad_entry, NULL, 155 ACL_DISCLOSE, NULL ) ) 156 { 157 rs->sr_err = LDAP_NO_SUCH_OBJECT; 158 rs->sr_text = NULL; 159 } 160 break; 161 } 162 163 send_ldap_result( op, rs ); 164 165 if ( rs->sr_matched ) { 166 rs->sr_matched = NULL; 167 } 168 169 if ( rs->sr_ref ) { 170 ber_bvarray_free( rs->sr_ref ); 171 rs->sr_ref = NULL; 172 } 173 174 if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) { 175 (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx ); 176 } 177 178 if ( !BER_BVISNULL( &e.e_nname ) ) { 179 backsql_entry_clean( op, &e ); 180 } 181 182 if ( bsi.bsi_attrs != NULL ) { 183 op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx ); 184 } 185 186 Debug(LDAP_DEBUG_TRACE,"<==backsql_compare()\n",0,0,0); 187 switch ( rs->sr_err ) { 188 case LDAP_COMPARE_TRUE: 189 case LDAP_COMPARE_FALSE: 190 return LDAP_SUCCESS; 191 192 default: 193 return rs->sr_err; 194 } 195 } 196 197