1 /* $NetBSD: modify.c,v 1.3 2021/08/14 16:14:59 christos Exp $ */
2
3 /* modify.c - ldap backend modify function */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 1999-2021 The OpenLDAP Foundation.
8 * Portions Copyright 1999-2003 Howard Chu.
9 * Portions Copyright 2000-2003 Pierangelo Masarati.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted only as authorized by the OpenLDAP
14 * Public License.
15 *
16 * A copy of this license is available in the file LICENSE in the
17 * top-level directory of the distribution or, alternatively, at
18 * <http://www.OpenLDAP.org/license.html>.
19 */
20 /* ACKNOWLEDGEMENTS:
21 * This work was initially developed by the Howard Chu for inclusion
22 * in OpenLDAP Software and subsequently enhanced by Pierangelo
23 * Masarati.
24 */
25
26 #include <sys/cdefs.h>
27 __RCSID("$NetBSD: modify.c,v 1.3 2021/08/14 16:14:59 christos Exp $");
28
29 #include "portable.h"
30
31 #include <stdio.h>
32
33 #include <ac/string.h>
34 #include <ac/socket.h>
35
36 #include "slap.h"
37 #include "back-ldap.h"
38
39 int
ldap_back_modify(Operation * op,SlapReply * rs)40 ldap_back_modify(
41 Operation *op,
42 SlapReply *rs )
43 {
44 ldapinfo_t *li = (ldapinfo_t *)op->o_bd->be_private;
45
46 ldapconn_t *lc = NULL;
47 LDAPMod **modv = NULL,
48 *mods = NULL;
49 Modifications *ml;
50 int i, j, rc;
51 ber_int_t msgid;
52 int isupdate;
53 ldap_back_send_t retrying = LDAP_BACK_RETRYING;
54 LDAPControl **ctrls = NULL;
55
56 if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
57 return rs->sr_err;
58 }
59
60 for ( i = 0, ml = op->orm_modlist; ml; i++, ml = ml->sml_next )
61 /* just count mods */ ;
62
63 modv = (LDAPMod **)ch_malloc( ( i + 1 )*sizeof( LDAPMod * )
64 + i*sizeof( LDAPMod ) );
65 if ( modv == NULL ) {
66 rc = LDAP_NO_MEMORY;
67 goto cleanup;
68 }
69 mods = (LDAPMod *)&modv[ i + 1 ];
70
71 isupdate = be_shadow_update( op );
72 for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
73 if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod )
74 {
75 continue;
76 }
77
78 modv[ i ] = &mods[ i ];
79 mods[ i ].mod_op = ( ml->sml_op | LDAP_MOD_BVALUES );
80 mods[ i ].mod_type = ml->sml_desc->ad_cname.bv_val;
81
82 if ( ml->sml_values != NULL ) {
83 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
84 /* just count mods */ ;
85 mods[ i ].mod_bvalues =
86 (struct berval **)ch_malloc( ( j + 1 )*sizeof( struct berval * ) );
87 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
88 {
89 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
90 }
91 mods[ i ].mod_bvalues[ j ] = NULL;
92
93 } else {
94 mods[ i ].mod_bvalues = NULL;
95 }
96
97 i++;
98 }
99 modv[ i ] = 0;
100
101 retry:;
102 ctrls = op->o_ctrls;
103 rc = ldap_back_controls_add( op, rs, lc, &ctrls );
104 if ( rc != LDAP_SUCCESS ) {
105 send_ldap_result( op, rs );
106 goto cleanup;
107 }
108
109 rs->sr_err = ldap_modify_ext( lc->lc_ld, op->o_req_dn.bv_val, modv,
110 ctrls, NULL, &msgid );
111 rc = ldap_back_op_result( lc, op, rs, msgid,
112 li->li_timeout[ SLAP_OP_MODIFY ],
113 ( LDAP_BACK_SENDRESULT | retrying ) );
114 if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
115 retrying &= ~LDAP_BACK_RETRYING;
116 if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
117 /* if the identity changed, there might be need to re-authz */
118 (void)ldap_back_controls_free( op, rs, &ctrls );
119 goto retry;
120 }
121 }
122
123 ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
124 ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODIFY ], 1 );
125 ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
126
127 cleanup:;
128 (void)ldap_back_controls_free( op, rs, &ctrls );
129
130 for ( i = 0; modv[ i ]; i++ ) {
131 ch_free( modv[ i ]->mod_bvalues );
132 }
133 ch_free( modv );
134
135 if ( lc != NULL ) {
136 ldap_back_release_conn( li, lc );
137 }
138
139 return rs->sr_err;
140 }
141
142