--- /dev/null
+/* pguid.c - Parent GUID value overlay */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2009 The OpenLDAP Foundation.
+ * Portions Copyright 2008 Pierangelo Masarati.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Pierangelo Masarati
+ * for inclusion in OpenLDAP Software.
+ */
+
+#include "portable.h"
+
+#ifdef SLAPD_OVER_PGUID
+
+#include <stdio.h>
+
+#include "ac/string.h"
+#include "ac/socket.h"
+
+#include "slap.h"
+#include "config.h"
+
+#include "lutil.h"
+
+/*
+ * Maintain an attribute (parentUUID) that contains the value
+ * of the entryUUID of the parent entry (used by Samba4)
+ */
+
+static AttributeDescription *ad_parentUUID;
+
+static slap_overinst pguid;
+
+static int
+pguid_op_add( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
+
+ struct berval pdn, pndn;
+ Entry *e = NULL;
+ Attribute *a;
+ int rc;
+
+ /* don't care about suffix entry */
+ if ( dn_match( &op->o_req_ndn, &op->o_bd->be_nsuffix[0] ) ) {
+ return SLAP_CB_CONTINUE;
+ }
+
+ dnParent( &op->o_req_dn, &pdn );
+ dnParent( &op->o_req_ndn, &pndn );
+
+ rc = overlay_entry_get_ov( op, &pndn, NULL, slap_schema.si_ad_entryUUID, 0, &e, on );
+ if ( rc != LDAP_SUCCESS || e == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_op_add: unable to get parent entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, pdn.bv_val, rc );
+ return SLAP_CB_CONTINUE;
+ }
+
+ a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
+ if ( a == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_op_add: unable to find entryUUID of parent entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, pdn.bv_val, rc );
+
+ } else {
+ assert( a->a_numvals == 1 );
+
+ if ( op->ora_e != NULL ) {
+ attr_merge_one( op->ora_e, ad_parentUUID, &a->a_vals[0], a->a_nvals == a->a_vals ? NULL : &a->a_nvals[0] );
+
+ } else {
+ Modifications *ml;
+ Modifications *mod;
+
+ assert( op->ora_modlist != NULL );
+
+ for ( ml = op->ora_modlist; ml != NULL; ml = ml->sml_next ) {
+ if ( ml->sml_mod.sm_desc == slap_schema.si_ad_entryUUID ) {
+ break;
+ }
+ }
+
+ if ( ml == NULL ) {
+ ml = op->ora_modlist;
+ }
+
+ mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
+ mod->sml_flags = SLAP_MOD_INTERNAL;
+ mod->sml_op = LDAP_MOD_ADD;
+ mod->sml_desc = ad_parentUUID;
+ mod->sml_type = ad_parentUUID->ad_cname;
+ mod->sml_values = ch_malloc( sizeof( struct berval ) * 2 );
+ mod->sml_nvalues = NULL;
+ mod->sml_numvals = 1;
+
+ ber_dupbv( &mod->sml_values[0], &a->a_vals[0] );
+ BER_BVZERO( &mod->sml_values[1] );
+
+ mod->sml_next = ml->sml_next;
+ ml->sml_next = mod;
+ }
+ }
+
+ if ( e != NULL ) {
+ (void)overlay_entry_release_ov( op, e, 0, on );
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+pguid_op_rename( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
+
+ Entry *e = NULL;
+ Attribute *a;
+ int rc;
+
+ if ( op->orr_nnewSup == NULL ) {
+ return SLAP_CB_CONTINUE;
+ }
+
+ rc = overlay_entry_get_ov( op, op->orr_nnewSup, NULL, slap_schema.si_ad_entryUUID, 0, &e, on );
+ if ( rc != LDAP_SUCCESS || e == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_op_rename: unable to get newSuperior entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, op->orr_newSup->bv_val, rc );
+ return SLAP_CB_CONTINUE;
+ }
+
+ a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
+ if ( a == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_op_rename: unable to find entryUUID of newSuperior entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, op->orr_newSup->bv_val, rc );
+
+ } else {
+ Modifications *mod;
+
+ assert( a->a_numvals == 1 );
+
+ mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
+ mod->sml_flags = SLAP_MOD_INTERNAL;
+ mod->sml_op = LDAP_MOD_REPLACE;
+ mod->sml_desc = ad_parentUUID;
+ mod->sml_type = ad_parentUUID->ad_cname;
+ mod->sml_values = ch_malloc( sizeof( struct berval ) * 2 );
+ mod->sml_nvalues = NULL;
+ mod->sml_numvals = 1;
+
+ ber_dupbv( &mod->sml_values[0], &a->a_vals[0] );
+ BER_BVZERO( &mod->sml_values[1] );
+
+ mod->sml_next = op->orr_modlist;
+ op->orr_modlist = mod;
+ }
+
+ if ( e != NULL ) {
+ (void)overlay_entry_release_ov( op, e, 0, on );
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+pguid_db_init(
+ BackendDB *be,
+ ConfigReply *cr)
+{
+ if ( SLAP_ISGLOBALOVERLAY( be ) ) {
+ Log0( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
+ "pguid_db_init: pguid cannot be used as global overlay.\n" );
+ return 1;
+ }
+
+ if ( be->be_nsuffix == NULL ) {
+ Log0( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
+ "pguid_db_init: database must have suffix\n" );
+ return 1;
+ }
+
+ if ( BER_BVISNULL( &be->be_rootndn ) || BER_BVISEMPTY( &be->be_rootndn ) ) {
+ Log1( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
+ "pguid_db_init: missing rootdn for database DN=\"%s\", YMMV\n",
+ be->be_suffix[ 0 ].bv_val );
+ }
+
+ return 0;
+}
+
+typedef struct pguid_mod_t {
+ struct berval ndn;
+ struct berval pguid;
+ struct pguid_mod_t *next;
+} pguid_mod_t;
+
+typedef struct {
+ slap_overinst *on;
+ pguid_mod_t *mods;
+} pguid_repair_cb_t;
+
+static int
+pguid_repair_cb( Operation *op, SlapReply *rs )
+{
+ int rc;
+ pguid_repair_cb_t *pcb = op->o_callback->sc_private;
+ Entry *e = NULL;
+ Attribute *a;
+ struct berval pdn, pndn;
+
+ switch ( rs->sr_type ) {
+ case REP_SEARCH:
+ break;
+
+ case REP_SEARCHREF:
+ case REP_RESULT:
+ return rs->sr_err;
+
+ default:
+ assert( 0 );
+ }
+
+ assert( rs->sr_entry != NULL );
+
+ dnParent( &rs->sr_entry->e_name, &pdn );
+ dnParent( &rs->sr_entry->e_nname, &pndn );
+
+ rc = overlay_entry_get_ov( op, &pndn, NULL, slap_schema.si_ad_entryUUID, 0, &e, pcb->on );
+ if ( rc != LDAP_SUCCESS || e == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_repair_cb: unable to get parent entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, pdn.bv_val, rc );
+ return 0;
+ }
+
+ a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
+ if ( a == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_repair_cb: unable to find entryUUID of parent entry DN=\"%s\" (%d)\n",
+ op->o_log_prefix, pdn.bv_val, rc );
+
+ } else {
+ ber_len_t len;
+ pguid_mod_t *mod;
+
+ assert( a->a_numvals == 1 );
+
+ len = sizeof( pguid_mod_t ) + rs->sr_entry->e_nname.bv_len + 1 + a->a_vals[0].bv_len + 1;
+ mod = op->o_tmpalloc( len, op->o_tmpmemctx );
+ mod->ndn.bv_len = rs->sr_entry->e_nname.bv_len;
+ mod->ndn.bv_val = (char *)&mod[1];
+ mod->pguid.bv_len = a->a_vals[0].bv_len;
+ mod->pguid.bv_val = (char *)&mod->ndn.bv_val[mod->ndn.bv_len + 1];
+ lutil_strncopy( mod->ndn.bv_val, rs->sr_entry->e_nname.bv_val, rs->sr_entry->e_nname.bv_len );
+ lutil_strncopy( mod->pguid.bv_val, a->a_vals[0].bv_val, a->a_vals[0].bv_len );
+
+ mod->next = pcb->mods;
+ pcb->mods = mod;
+
+ Debug( LDAP_DEBUG_TRACE, "%s: pguid_repair_cb: scheduling entry DN=\"%s\" for repair\n",
+ op->o_log_prefix, rs->sr_entry->e_name.bv_val, 0 );
+ }
+
+ if ( e != NULL ) {
+ (void)overlay_entry_release_ov( op, e, 0, pcb->on );
+ }
+
+ return 0;
+}
+
+static int
+pguid_repair( BackendDB *be )
+{
+ slap_overinst *on = (slap_overinst *)be->bd_info;
+ void *ctx = ldap_pvt_thread_pool_context();
+ Connection conn = { 0 };
+ OperationBuffer opbuf;
+ Operation *op;
+ slap_callback sc = { 0 };
+ pguid_repair_cb_t pcb = { 0 };
+ SlapReply rs = { REP_RESULT };
+ pguid_mod_t *pmod;
+ int nrepaired = 0;
+
+ connection_fake_init2( &conn, &opbuf, ctx, 0 );
+ op = &opbuf.ob_op;
+
+ op->o_tag = LDAP_REQ_SEARCH;
+ memset( &op->oq_search, 0, sizeof( op->oq_search ) );
+
+ op->o_bd = select_backend( &be->be_nsuffix[ 0 ], 0 );
+
+ op->o_req_dn = op->o_bd->be_suffix[ 0 ];
+ op->o_req_ndn = op->o_bd->be_nsuffix[ 0 ];
+
+ op->o_dn = op->o_bd->be_rootdn;
+ op->o_ndn = op->o_bd->be_rootndn;
+
+ op->ors_scope = LDAP_SCOPE_SUBORDINATE;
+ op->ors_tlimit = SLAP_NO_LIMIT;
+ op->ors_slimit = SLAP_NO_LIMIT;
+ op->ors_attrs = slap_anlist_no_attrs;
+
+ op->ors_filterstr.bv_len = STRLENOF( "(!(=*))" ) + ad_parentUUID->ad_cname.bv_len;
+ op->ors_filterstr.bv_val = op->o_tmpalloc( op->ors_filterstr.bv_len + 1, op->o_tmpmemctx );
+ snprintf( op->ors_filterstr.bv_val, op->ors_filterstr.bv_len + 1,
+ "(!(%s=*))", ad_parentUUID->ad_cname.bv_val );
+
+ op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
+ if ( op->ors_filter == NULL ) {
+ rs.sr_err = LDAP_OTHER;
+ goto done_search;
+ }
+
+ op->o_callback = ≻
+ sc.sc_response = pguid_repair_cb;
+ sc.sc_private = &pcb;
+ pcb.on = on;
+
+ (void)op->o_bd->bd_info->bi_op_search( op, &rs );
+
+ op->o_tag = LDAP_REQ_MODIFY;
+ sc.sc_response = slap_null_cb;
+ sc.sc_private = NULL;
+ memset( &op->oq_modify, 0, sizeof( req_modify_s ) );
+
+ for ( pmod = pcb.mods; pmod != NULL; ) {
+ pguid_mod_t *pnext;
+
+ Modifications *mod;
+ SlapReply rs2 = { REP_RESULT };
+
+ mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
+ mod->sml_flags = SLAP_MOD_INTERNAL;
+ mod->sml_op = LDAP_MOD_REPLACE;
+ mod->sml_desc = ad_parentUUID;
+ mod->sml_type = ad_parentUUID->ad_cname;
+ mod->sml_values = ch_malloc( sizeof( struct berval ) * 2 );
+ mod->sml_nvalues = NULL;
+ mod->sml_numvals = 1;
+ mod->sml_next = NULL;
+
+ ber_dupbv( &mod->sml_values[0], &pmod->pguid );
+ BER_BVZERO( &mod->sml_values[1] );
+
+ op->o_req_dn = pmod->ndn;
+ op->o_req_ndn = pmod->ndn;
+
+ op->orm_modlist = mod;
+ op->o_bd->be_modify( op, &rs2 );
+ slap_mods_free( op->orm_modlist, 1 );
+ if ( rs2.sr_err == LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE, "%s: pguid_repair: entry DN=\"%s\" repaired\n",
+ op->o_log_prefix, pmod->ndn.bv_val, 0 );
+ nrepaired++;
+
+ } else {
+ Debug( LDAP_DEBUG_ANY, "%s: pguid_repair: entry DN=\"%s\" repair failed (%d)\n",
+ op->o_log_prefix, pmod->ndn.bv_val, rs2.sr_err );
+ }
+
+ pnext = pmod->next;
+ op->o_tmpfree( pmod, op->o_tmpmemctx );
+ pmod = pnext;
+ }
+
+done_search:;
+ op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
+ filter_free_x( op, op->ors_filter, 1 );
+
+ Log1( LDAP_DEBUG_STATS, LDAP_LEVEL_INFO,
+ "pguid: repaired=%d\n", nrepaired );
+
+ return rs.sr_err;
+}
+
+/* search all entries without parentUUID; "repair" them */
+static int
+pguid_db_open(
+ BackendDB *be,
+ ConfigReply *cr )
+{
+ if ( SLAP_SINGLE_SHADOW( be ) ) {
+ Log1( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR,
+ "pguid incompatible with shadow database \"%s\".\n",
+ be->be_suffix[ 0 ].bv_val );
+ return 1;
+ }
+
+ pguid_repair( be );
+
+ return 0;
+}
+
+static struct {
+ char *desc;
+ AttributeDescription **adp;
+} as[] = {
+ { "( 1.3.6.1.4.1.4203.666.1.59 "
+ "NAME 'parentUUID' "
+ "DESC 'the value of the entryUUID of the parent' "
+ "EQUALITY UUIDMatch "
+ "ORDERING UUIDOrderingMatch "
+ "SYNTAX 1.3.6.1.1.16.1 "
+ "USAGE dSAOperation "
+ "SINGLE-VALUE "
+ "NO-USER-MODIFICATION "
+ ")",
+ &ad_parentUUID },
+ { NULL }
+};
+
+int
+pguid_initialize(void)
+{
+ int code, i;
+
+ for ( i = 0; as[ i ].desc != NULL; i++ ) {
+ code = register_at( as[ i ].desc, as[ i ].adp, 0 );
+ if ( code ) {
+ Debug( LDAP_DEBUG_ANY,
+ "pguid_initialize: register_at #%d failed\n",
+ i, 0, 0 );
+ return code;
+ }
+
+ /* Allow Manager to set these as needed */
+ if ( is_at_no_user_mod( (*as[ i ].adp)->ad_type ) ) {
+ (*as[ i ].adp)->ad_type->sat_flags |=
+ SLAP_AT_MANAGEABLE;
+ }
+ }
+
+ pguid.on_bi.bi_type = "pguid";
+
+ pguid.on_bi.bi_op_add = pguid_op_add;
+ pguid.on_bi.bi_op_modrdn = pguid_op_rename;
+
+ pguid.on_bi.bi_db_init = pguid_db_init;
+ pguid.on_bi.bi_db_open = pguid_db_open;
+
+ return overlay_register( &pguid );
+}
+
+#if SLAPD_OVER_PGUID == SLAPD_MOD_DYNAMIC
+int
+init_module( int argc, char *argv[] )
+{
+ return pguid_initialize();
+}
+#endif /* SLAPD_OVER_PGUID == SLAPD_MOD_DYNAMIC */
+
+#endif /* SLAPD_OVER_PGUID */
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