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-rw-r--r--servers/slapd/back-ndb/ndbio.cpp1677
1 files changed, 1677 insertions, 0 deletions
diff --git a/servers/slapd/back-ndb/ndbio.cpp b/servers/slapd/back-ndb/ndbio.cpp
new file mode 100644
index 0000000..9bf20fd
--- /dev/null
+++ b/servers/slapd/back-ndb/ndbio.cpp
@@ -0,0 +1,1677 @@
+/* ndbio.cpp - get/set/del data for NDB */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2008-2018 The OpenLDAP Foundation.
+ * 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 Howard Chu for inclusion
+ * in OpenLDAP Software. This work was sponsored by MySQL.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+#include <ac/errno.h>
+#include <lutil.h>
+
+#include "back-ndb.h"
+
+/* For reference only */
+typedef struct MedVar {
+ Int16 len; /* length is always little-endian */
+ char buf[1024];
+} MedVar;
+
+extern "C" {
+ static int ndb_name_cmp( const void *v1, const void *v2 );
+ static int ndb_oc_dup_err( void *v1, void *v2 );
+};
+
+static int
+ndb_name_cmp( const void *v1, const void *v2 )
+{
+ NdbOcInfo *oc1 = (NdbOcInfo *)v1, *oc2 = (NdbOcInfo *)v2;
+ return ber_bvstrcasecmp( &oc1->no_name, &oc2->no_name );
+}
+
+static int
+ndb_oc_dup_err( void *v1, void *v2 )
+{
+ NdbOcInfo *oc = (NdbOcInfo *)v2;
+
+ oc->no_oc = (ObjectClass *)v1;
+ return -1;
+}
+
+/* Find an existing NdbAttrInfo */
+extern "C" NdbAttrInfo *
+ndb_ai_find( struct ndb_info *ni, AttributeType *at )
+{
+ NdbAttrInfo atmp;
+ atmp.na_name = at->sat_cname;
+
+ return (NdbAttrInfo *)avl_find( ni->ni_ai_tree, &atmp, ndb_name_cmp );
+}
+
+/* Find or create an NdbAttrInfo */
+extern "C" NdbAttrInfo *
+ndb_ai_get( struct ndb_info *ni, struct berval *aname )
+{
+ NdbAttrInfo atmp, *ai;
+ atmp.na_name = *aname;
+
+ ai = (NdbAttrInfo *)avl_find( ni->ni_ai_tree, &atmp, ndb_name_cmp );
+ if ( !ai ) {
+ const char *text;
+ AttributeDescription *ad = NULL;
+
+ if ( slap_bv2ad( aname, &ad, &text ))
+ return NULL;
+
+ ai = (NdbAttrInfo *)ch_malloc( sizeof( NdbAttrInfo ));
+ ai->na_desc = ad;
+ ai->na_attr = ai->na_desc->ad_type;
+ ai->na_name = ai->na_attr->sat_cname;
+ ai->na_oi = NULL;
+ ai->na_flag = 0;
+ ai->na_ixcol = 0;
+ ai->na_len = ai->na_attr->sat_atype.at_syntax_len;
+ /* Reasonable default */
+ if ( !ai->na_len ) {
+ if ( ai->na_attr->sat_syntax == slap_schema.si_syn_distinguishedName )
+ ai->na_len = 1024;
+ else
+ ai->na_len = 128;
+ }
+ /* Arbitrary limit */
+ if ( ai->na_len > 1024 )
+ ai->na_len = 1024;
+ avl_insert( &ni->ni_ai_tree, ai, ndb_name_cmp, avl_dup_error );
+ }
+ return ai;
+}
+
+static int
+ndb_ai_check( struct ndb_info *ni, NdbOcInfo *oci, AttributeType **attrs, char **ptr, int *col,
+ int create )
+{
+ NdbAttrInfo *ai;
+ int i;
+
+ for ( i=0; attrs[i]; i++ ) {
+ if ( attrs[i] == slap_schema.si_ad_objectClass->ad_type )
+ continue;
+ /* skip attrs that are in a superior */
+ if ( oci->no_oc && oci->no_oc->soc_sups ) {
+ int j, k, found=0;
+ ObjectClass *oc;
+ for ( j=0; oci->no_oc->soc_sups[j]; j++ ) {
+ oc = oci->no_oc->soc_sups[j];
+ if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT )
+ continue;
+ if ( oc->soc_required ) {
+ for ( k=0; oc->soc_required[k]; k++ ) {
+ if ( attrs[i] == oc->soc_required[k] ) {
+ found = 1;
+ break;
+ }
+ }
+ if ( found ) break;
+ }
+ if ( oc->soc_allowed ) {
+ for ( k=0; oc->soc_allowed[k]; k++ ) {
+ if ( attrs[i] == oc->soc_allowed[k] ) {
+ found = 1;
+ break;
+ }
+ }
+ if ( found ) break;
+ }
+ }
+ if ( found )
+ continue;
+ }
+
+ ai = ndb_ai_get( ni, &attrs[i]->sat_cname );
+ if ( !ai ) {
+ /* can never happen */
+ return LDAP_OTHER;
+ }
+
+ /* An attrset may have already been connected */
+ if (( oci->no_flag & NDB_INFO_ATSET ) && ai->na_oi == oci )
+ continue;
+
+ /* An indexed attr is defined before its OC is */
+ if ( !ai->na_oi ) {
+ ai->na_oi = oci;
+ ai->na_column = (*col)++;
+ }
+
+ oci->no_attrs[oci->no_nattrs++] = ai;
+
+ /* An attrset attr may already be defined */
+ if ( ai->na_oi != oci ) {
+ int j;
+ for ( j=0; j<oci->no_nsets; j++ )
+ if ( oci->no_sets[j] == ai->na_oi ) break;
+ if ( j >= oci->no_nsets ) {
+ /* FIXME: data loss if more sets are in use */
+ if ( oci->no_nsets < NDB_MAX_OCSETS ) {
+ oci->no_sets[oci->no_nsets++] = ai->na_oi;
+ }
+ }
+ continue;
+ }
+
+ if ( create ) {
+ if ( ai->na_flag & NDB_INFO_ATBLOB ) {
+ *ptr += sprintf( *ptr, ", `%s` BLOB", ai->na_attr->sat_cname.bv_val );
+ } else {
+ *ptr += sprintf( *ptr, ", `%s` VARCHAR(%d)", ai->na_attr->sat_cname.bv_val,
+ ai->na_len );
+ }
+ }
+ }
+ return 0;
+}
+
+static int
+ndb_oc_create( struct ndb_info *ni, NdbOcInfo *oci, int create )
+{
+ char buf[4096], *ptr;
+ int i, rc = 0, col;
+
+ if ( create ) {
+ ptr = buf + sprintf( buf,
+ "CREATE TABLE `%s` (eid bigint unsigned NOT NULL, vid int unsigned NOT NULL",
+ oci->no_table.bv_val );
+ }
+
+ col = 0;
+ if ( oci->no_oc->soc_required ) {
+ for ( i=0; oci->no_oc->soc_required[i]; i++ );
+ col += i;
+ }
+ if ( oci->no_oc->soc_allowed ) {
+ for ( i=0; oci->no_oc->soc_allowed[i]; i++ );
+ col += i;
+ }
+ /* assume all are present */
+ oci->no_attrs = (struct ndb_attrinfo **)ch_malloc( col * sizeof(struct ndb_attrinfo *));
+
+ col = 2;
+ ldap_pvt_thread_rdwr_wlock( &ni->ni_ai_rwlock );
+ if ( oci->no_oc->soc_required ) {
+ rc = ndb_ai_check( ni, oci, oci->no_oc->soc_required, &ptr, &col, create );
+ }
+ if ( !rc && oci->no_oc->soc_allowed ) {
+ rc = ndb_ai_check( ni, oci, oci->no_oc->soc_allowed, &ptr, &col, create );
+ }
+ ldap_pvt_thread_rdwr_wunlock( &ni->ni_ai_rwlock );
+
+ /* shrink down to just the needed size */
+ oci->no_attrs = (struct ndb_attrinfo **)ch_realloc( oci->no_attrs,
+ oci->no_nattrs * sizeof(struct ndb_attrinfo *));
+
+ if ( create ) {
+ ptr = lutil_strcopy( ptr, ", PRIMARY KEY(eid, vid) ) ENGINE=ndb PARTITION BY KEY(eid)" );
+ rc = mysql_real_query( &ni->ni_sql, buf, ptr - buf );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_ANY,
+ "ndb_oc_create: CREATE TABLE %s failed, %s (%d)\n",
+ oci->no_table.bv_val, mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
+ }
+ }
+ return rc;
+}
+
+/* Read table definitions from the DB and populate ObjectClassInfo */
+extern "C" int
+ndb_oc_read( struct ndb_info *ni, const NdbDictionary::Dictionary *myDict )
+{
+ const NdbDictionary::Table *myTable;
+ const NdbDictionary::Column *myCol;
+ NdbOcInfo *oci, octmp;
+ NdbAttrInfo *ai;
+ ObjectClass *oc;
+ NdbDictionary::Dictionary::List myList;
+ struct berval bv;
+ int i, j, rc, col;
+
+ rc = myDict->listObjects( myList, NdbDictionary::Object::UserTable );
+ /* Populate our objectClass structures */
+ for ( i=0; i<myList.count; i++ ) {
+ /* Ignore other DBs */
+ if ( strcmp( myList.elements[i].database, ni->ni_dbname ))
+ continue;
+ /* Ignore internal tables */
+ if ( !strncmp( myList.elements[i].name, "OL_", 3 ))
+ continue;
+ ber_str2bv( myList.elements[i].name, 0, 0, &octmp.no_name );
+ oci = (NdbOcInfo *)avl_find( ni->ni_oc_tree, &octmp, ndb_name_cmp );
+ if ( oci )
+ continue;
+
+ oc = oc_bvfind( &octmp.no_name );
+ if ( !oc ) {
+ /* undefined - shouldn't happen */
+ continue;
+ }
+ myTable = myDict->getTable( myList.elements[i].name );
+ oci = (NdbOcInfo *)ch_malloc( sizeof( NdbOcInfo )+oc->soc_cname.bv_len+1 );
+ oci->no_table.bv_val = (char *)(oci+1);
+ strcpy( oci->no_table.bv_val, oc->soc_cname.bv_val );
+ oci->no_table.bv_len = oc->soc_cname.bv_len;
+ oci->no_name = oci->no_table;
+ oci->no_oc = oc;
+ oci->no_flag = 0;
+ oci->no_nsets = 0;
+ oci->no_nattrs = 0;
+ col = 0;
+ /* Make space for all attrs, even tho sups will be dropped */
+ if ( oci->no_oc->soc_required ) {
+ for ( j=0; oci->no_oc->soc_required[j]; j++ );
+ col = j;
+ }
+ if ( oci->no_oc->soc_allowed ) {
+ for ( j=0; oci->no_oc->soc_allowed[j]; j++ );
+ col += j;
+ }
+ oci->no_attrs = (struct ndb_attrinfo **)ch_malloc( col * sizeof(struct ndb_attrinfo *));
+ avl_insert( &ni->ni_oc_tree, oci, ndb_name_cmp, avl_dup_error );
+
+ col = myTable->getNoOfColumns();
+ /* Skip 0 and 1, eid and vid */
+ for ( j = 2; j<col; j++ ) {
+ myCol = myTable->getColumn( j );
+ ber_str2bv( myCol->getName(), 0, 0, &bv );
+ ai = ndb_ai_get( ni, &bv );
+ /* shouldn't happen */
+ if ( !ai )
+ continue;
+ ai->na_oi = oci;
+ ai->na_column = j;
+ ai->na_len = myCol->getLength();
+ if ( myCol->getType() == NdbDictionary::Column::Blob )
+ ai->na_flag |= NDB_INFO_ATBLOB;
+ }
+ }
+ /* Link to any attrsets */
+ for ( i=0; i<myList.count; i++ ) {
+ /* Ignore other DBs */
+ if ( strcmp( myList.elements[i].database, ni->ni_dbname ))
+ continue;
+ /* Ignore internal tables */
+ if ( !strncmp( myList.elements[i].name, "OL_", 3 ))
+ continue;
+ ber_str2bv( myList.elements[i].name, 0, 0, &octmp.no_name );
+ oci = (NdbOcInfo *)avl_find( ni->ni_oc_tree, &octmp, ndb_name_cmp );
+ /* shouldn't happen */
+ if ( !oci )
+ continue;
+ col = 2;
+ if ( oci->no_oc->soc_required ) {
+ rc = ndb_ai_check( ni, oci, oci->no_oc->soc_required, NULL, &col, 0 );
+ }
+ if ( oci->no_oc->soc_allowed ) {
+ rc = ndb_ai_check( ni, oci, oci->no_oc->soc_allowed, NULL, &col, 0 );
+ }
+ /* shrink down to just the needed size */
+ oci->no_attrs = (struct ndb_attrinfo **)ch_realloc( oci->no_attrs,
+ oci->no_nattrs * sizeof(struct ndb_attrinfo *));
+ }
+ return 0;
+}
+
+static int
+ndb_oc_list( struct ndb_info *ni, const NdbDictionary::Dictionary *myDict,
+ struct berval *oname, int implied, NdbOcs *out )
+{
+ const NdbDictionary::Table *myTable;
+ NdbOcInfo *oci, octmp;
+ ObjectClass *oc;
+ int i, rc;
+
+ /* shortcut top */
+ if ( ber_bvstrcasecmp( oname, &slap_schema.si_oc_top->soc_cname )) {
+ octmp.no_name = *oname;
+ oci = (NdbOcInfo *)avl_find( ni->ni_oc_tree, &octmp, ndb_name_cmp );
+ if ( oci ) {
+ oc = oci->no_oc;
+ } else {
+ oc = oc_bvfind( oname );
+ if ( !oc ) {
+ /* undefined - shouldn't happen */
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+ if ( oc->soc_sups ) {
+ int i;
+
+ for ( i=0; oc->soc_sups[i]; i++ ) {
+ rc = ndb_oc_list( ni, myDict, &oc->soc_sups[i]->soc_cname, 1, out );
+ if ( rc ) return rc;
+ }
+ }
+ } else {
+ oc = slap_schema.si_oc_top;
+ }
+ /* Only insert once */
+ for ( i=0; i<out->no_ntext; i++ )
+ if ( out->no_text[i].bv_val == oc->soc_cname.bv_val )
+ break;
+ if ( i == out->no_ntext ) {
+ for ( i=0; i<out->no_nitext; i++ )
+ if ( out->no_itext[i].bv_val == oc->soc_cname.bv_val )
+ break;
+ if ( i == out->no_nitext ) {
+ if ( implied )
+ out->no_itext[out->no_nitext++] = oc->soc_cname;
+ else
+ out->no_text[out->no_ntext++] = oc->soc_cname;
+ }
+ }
+
+ /* ignore top, etc... */
+ if ( oc->soc_kind == LDAP_SCHEMA_ABSTRACT )
+ return 0;
+
+ if ( !oci ) {
+ ldap_pvt_thread_rdwr_runlock( &ni->ni_oc_rwlock );
+ oci = (NdbOcInfo *)ch_malloc( sizeof( NdbOcInfo )+oc->soc_cname.bv_len+1 );
+ oci->no_table.bv_val = (char *)(oci+1);
+ strcpy( oci->no_table.bv_val, oc->soc_cname.bv_val );
+ oci->no_table.bv_len = oc->soc_cname.bv_len;
+ oci->no_name = oci->no_table;
+ oci->no_oc = oc;
+ oci->no_flag = 0;
+ oci->no_nsets = 0;
+ oci->no_nattrs = 0;
+ ldap_pvt_thread_rdwr_wlock( &ni->ni_oc_rwlock );
+ if ( avl_insert( &ni->ni_oc_tree, oci, ndb_name_cmp, ndb_oc_dup_err )) {
+ octmp.no_oc = oci->no_oc;
+ ch_free( oci );
+ oci = (NdbOcInfo *)octmp.no_oc;
+ }
+ /* see if the oc table already exists in the DB */
+ myTable = myDict->getTable( oci->no_table.bv_val );
+ rc = ndb_oc_create( ni, oci, myTable == NULL );
+ ldap_pvt_thread_rdwr_wunlock( &ni->ni_oc_rwlock );
+ ldap_pvt_thread_rdwr_rlock( &ni->ni_oc_rwlock );
+ if ( rc ) return rc;
+ }
+ /* Only insert once */
+ for ( i=0; i<out->no_ninfo; i++ )
+ if ( out->no_info[i] == oci )
+ break;
+ if ( i == out->no_ninfo )
+ out->no_info[out->no_ninfo++] = oci;
+ return 0;
+}
+
+extern "C" int
+ndb_aset_get( struct ndb_info *ni, struct berval *sname, struct berval *attrs, NdbOcInfo **ret )
+{
+ NdbOcInfo *oci, octmp;
+ int i, rc;
+
+ octmp.no_name = *sname;
+ oci = (NdbOcInfo *)avl_find( ni->ni_oc_tree, &octmp, ndb_name_cmp );
+ if ( oci )
+ return LDAP_ALREADY_EXISTS;
+
+ for ( i=0; !BER_BVISNULL( &attrs[i] ); i++ ) {
+ if ( !at_bvfind( &attrs[i] ))
+ return LDAP_NO_SUCH_ATTRIBUTE;
+ }
+ i++;
+
+ oci = (NdbOcInfo *)ch_calloc( 1, sizeof( NdbOcInfo ) + sizeof( ObjectClass ) +
+ i*sizeof(AttributeType *) + sname->bv_len+1 );
+ oci->no_oc = (ObjectClass *)(oci+1);
+ oci->no_oc->soc_required = (AttributeType **)(oci->no_oc+1);
+ oci->no_table.bv_val = (char *)(oci->no_oc->soc_required+i);
+
+ for ( i=0; !BER_BVISNULL( &attrs[i] ); i++ )
+ oci->no_oc->soc_required[i] = at_bvfind( &attrs[i] );
+
+ strcpy( oci->no_table.bv_val, sname->bv_val );
+ oci->no_table.bv_len = sname->bv_len;
+ oci->no_name = oci->no_table;
+ oci->no_oc->soc_cname = oci->no_name;
+ oci->no_flag = NDB_INFO_ATSET;
+
+ if ( !ber_bvcmp( sname, &slap_schema.si_oc_extensibleObject->soc_cname ))
+ oci->no_oc->soc_kind = slap_schema.si_oc_extensibleObject->soc_kind;
+
+ rc = ndb_oc_create( ni, oci, 0 );
+ if ( !rc )
+ rc = avl_insert( &ni->ni_oc_tree, oci, ndb_name_cmp, avl_dup_error );
+ if ( rc ) {
+ ch_free( oci );
+ } else {
+ *ret = oci;
+ }
+ return rc;
+}
+
+extern "C" int
+ndb_aset_create( struct ndb_info *ni, NdbOcInfo *oci )
+{
+ char buf[4096], *ptr;
+ NdbAttrInfo *ai;
+ int i;
+
+ ptr = buf + sprintf( buf,
+ "CREATE TABLE IF NOT EXISTS `%s` (eid bigint unsigned NOT NULL, vid int unsigned NOT NULL",
+ oci->no_table.bv_val );
+
+ for ( i=0; i<oci->no_nattrs; i++ ) {
+ if ( oci->no_attrs[i]->na_oi != oci )
+ continue;
+ ai = oci->no_attrs[i];
+ ptr += sprintf( ptr, ", `%s` VARCHAR(%d)", ai->na_attr->sat_cname.bv_val,
+ ai->na_len );
+ if ( ai->na_flag & NDB_INFO_INDEX ) {
+ ptr += sprintf( ptr, ", INDEX (`%s`)", ai->na_attr->sat_cname.bv_val );
+ }
+ }
+ ptr = lutil_strcopy( ptr, ", PRIMARY KEY(eid, vid) ) ENGINE=ndb PARTITION BY KEY(eid)" );
+ i = mysql_real_query( &ni->ni_sql, buf, ptr - buf );
+ if ( i ) {
+ Debug( LDAP_DEBUG_ANY,
+ "ndb_aset_create: CREATE TABLE %s failed, %s (%d)\n",
+ oci->no_table.bv_val, mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
+ }
+ return i;
+}
+
+static int
+ndb_oc_check( BackendDB *be, Ndb *ndb,
+ struct berval *ocsin, NdbOcs *out )
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ const NdbDictionary::Dictionary *myDict = ndb->getDictionary();
+
+ int i, rc = 0;
+
+ out->no_ninfo = 0;
+ out->no_ntext = 0;
+ out->no_nitext = 0;
+
+ /* Find all objectclasses and their superiors. List
+ * the superiors first.
+ */
+
+ ldap_pvt_thread_rdwr_rlock( &ni->ni_oc_rwlock );
+ for ( i=0; !BER_BVISNULL( &ocsin[i] ); i++ ) {
+ rc = ndb_oc_list( ni, myDict, &ocsin[i], 0, out );
+ if ( rc ) break;
+ }
+ ldap_pvt_thread_rdwr_runlock( &ni->ni_oc_rwlock );
+ return rc;
+}
+
+#define V_INS 1
+#define V_DEL 2
+#define V_REP 3
+
+static int ndb_flush_blobs;
+
+/* set all the unique attrs of this objectclass into the table
+ */
+extern "C" int
+ndb_oc_attrs(
+ NdbTransaction *txn,
+ const NdbDictionary::Table *myTable,
+ Entry *e,
+ NdbOcInfo *no,
+ NdbAttrInfo **attrs,
+ int nattrs,
+ Attribute *old
+)
+{
+ char buf[65538], *ptr;
+ Attribute **an, **ao, *a;
+ NdbOperation *myop;
+ int i, j, max = 0;
+ int changed, rc;
+ Uint64 eid = e->e_id;
+
+ if ( !nattrs )
+ return 0;
+
+ an = (Attribute **)ch_malloc( 2 * nattrs * sizeof(Attribute *));
+ ao = an + nattrs;
+
+ /* Turn lists of attrs into arrays for easier access */
+ for ( i=0; i<nattrs; i++ ) {
+ if ( attrs[i]->na_oi != no ) {
+ an[i] = NULL;
+ ao[i] = NULL;
+ continue;
+ }
+ for ( a=e->e_attrs; a; a=a->a_next ) {
+ if ( a->a_desc == slap_schema.si_ad_objectClass )
+ continue;
+ if ( a->a_desc->ad_type == attrs[i]->na_attr ) {
+ /* Don't process same attr twice */
+ if ( a->a_flags & SLAP_ATTR_IXADD )
+ a = NULL;
+ else
+ a->a_flags |= SLAP_ATTR_IXADD;
+ break;
+ }
+ }
+ an[i] = a;
+ if ( a && a->a_numvals > max )
+ max = a->a_numvals;
+ for ( a=old; a; a=a->a_next ) {
+ if ( a->a_desc == slap_schema.si_ad_objectClass )
+ continue;
+ if ( a->a_desc->ad_type == attrs[i]->na_attr )
+ break;
+ }
+ ao[i] = a;
+ if ( a && a->a_numvals > max )
+ max = a->a_numvals;
+ }
+
+ for ( i=0; i<max; i++ ) {
+ myop = NULL;
+ for ( j=0; j<nattrs; j++ ) {
+ if ( !an[j] && !ao[j] )
+ continue;
+ changed = 0;
+ if ( an[j] && an[j]->a_numvals > i ) {
+ /* both old and new are present, compare for changes */
+ if ( ao[j] && ao[j]->a_numvals > i ) {
+ if ( ber_bvcmp( &ao[j]->a_nvals[i], &an[j]->a_nvals[i] ))
+ changed = V_REP;
+ } else {
+ changed = V_INS;
+ }
+ } else {
+ if ( ao[j] && ao[j]->a_numvals > i )
+ changed = V_DEL;
+ }
+ if ( changed ) {
+ if ( !myop ) {
+ rc = LDAP_OTHER;
+ myop = txn->getNdbOperation( myTable );
+ if ( !myop ) {
+ goto done;
+ }
+ if ( old ) {
+ if ( myop->writeTuple()) {
+ goto done;
+ }
+ } else {
+ if ( myop->insertTuple()) {
+ goto done;
+ }
+ }
+ if ( myop->equal( EID_COLUMN, eid )) {
+ goto done;
+ }
+ if ( myop->equal( VID_COLUMN, i )) {
+ goto done;
+ }
+ }
+ if ( attrs[j]->na_flag & NDB_INFO_ATBLOB ) {
+ NdbBlob *myBlob = myop->getBlobHandle( attrs[j]->na_column );
+ rc = LDAP_OTHER;
+ if ( !myBlob ) {
+ Debug( LDAP_DEBUG_TRACE, "ndb_oc_attrs: getBlobHandle failed %s (%d)\n",
+ myop->getNdbError().message, myop->getNdbError().code, 0 );
+ goto done;
+ }
+ if ( slapMode & SLAP_TOOL_MODE )
+ ndb_flush_blobs = 1;
+ if ( changed & V_INS ) {
+ if ( myBlob->setValue( an[j]->a_vals[i].bv_val, an[j]->a_vals[i].bv_len )) {
+ Debug( LDAP_DEBUG_TRACE, "ndb_oc_attrs: blob->setValue failed %s (%d)\n",
+ myBlob->getNdbError().message, myBlob->getNdbError().code, 0 );
+ goto done;
+ }
+ } else {
+ if ( myBlob->setValue( NULL, 0 )) {
+ Debug( LDAP_DEBUG_TRACE, "ndb_oc_attrs: blob->setValue failed %s (%d)\n",
+ myBlob->getNdbError().message, myBlob->getNdbError().code, 0 );
+ goto done;
+ }
+ }
+ } else {
+ if ( changed & V_INS ) {
+ if ( an[j]->a_vals[i].bv_len > attrs[j]->na_len ) {
+ Debug( LDAP_DEBUG_ANY, "ndb_oc_attrs: attribute %s too long for column\n",
+ attrs[j]->na_name.bv_val, 0, 0 );
+ rc = LDAP_CONSTRAINT_VIOLATION;
+ goto done;
+ }
+ ptr = buf;
+ *ptr++ = an[j]->a_vals[i].bv_len & 0xff;
+ if ( attrs[j]->na_len > 255 ) {
+ /* MedVar */
+ *ptr++ = an[j]->a_vals[i].bv_len >> 8;
+ }
+ memcpy( ptr, an[j]->a_vals[i].bv_val, an[j]->a_vals[i].bv_len );
+ ptr = buf;
+ } else {
+ ptr = NULL;
+ }
+ if ( myop->setValue( attrs[j]->na_column, ptr )) {
+ rc = LDAP_OTHER;
+ goto done;
+ }
+ }
+ }
+ }
+ }
+ rc = LDAP_SUCCESS;
+done:
+ ch_free( an );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_TRACE, "ndb_oc_attrs: failed %s (%d)\n",
+ myop->getNdbError().message, myop->getNdbError().code, 0 );
+ }
+ return rc;
+}
+
+static int
+ndb_oc_put(
+ const NdbDictionary::Dictionary *myDict,
+ NdbTransaction *txn, NdbOcInfo *no, Entry *e )
+{
+ const NdbDictionary::Table *myTable;
+ int i, rc;
+
+ for ( i=0; i<no->no_nsets; i++ ) {
+ rc = ndb_oc_put( myDict, txn, no->no_sets[i], e );
+ if ( rc )
+ return rc;
+ }
+
+ myTable = myDict->getTable( no->no_table.bv_val );
+ if ( !myTable )
+ return LDAP_OTHER;
+
+ return ndb_oc_attrs( txn, myTable, e, no, no->no_attrs, no->no_nattrs, NULL );
+}
+
+/* This is now only used for Adds. Modifies call ndb_oc_attrs directly. */
+extern "C" int
+ndb_entry_put_data(
+ BackendDB *be,
+ NdbArgs *NA
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ Attribute *aoc;
+ const NdbDictionary::Dictionary *myDict = NA->ndb->getDictionary();
+ NdbOcs myOcs;
+ int i, rc;
+
+ /* Get the entry's objectClass attribute */
+ aoc = attr_find( NA->e->e_attrs, slap_schema.si_ad_objectClass );
+ if ( !aoc )
+ return LDAP_OTHER;
+
+ ndb_oc_check( be, NA->ndb, aoc->a_nvals, &myOcs );
+ myOcs.no_info[myOcs.no_ninfo++] = ni->ni_opattrs;
+
+ /* Walk thru objectclasses, find all the attributes belonging to a class */
+ for ( i=0; i<myOcs.no_ninfo; i++ ) {
+ rc = ndb_oc_put( myDict, NA->txn, myOcs.no_info[i], NA->e );
+ if ( rc ) return rc;
+ }
+
+ /* slapadd tries to batch multiple entries per txn, but entry data is
+ * transient and blob data is required to remain valid for the whole txn.
+ * So we need to flush blobs before their source data disappears.
+ */
+ if (( slapMode & SLAP_TOOL_MODE ) && ndb_flush_blobs )
+ NA->txn->execute( NdbTransaction::NoCommit );
+
+ return 0;
+}
+
+static void
+ndb_oc_get( Operation *op, NdbOcInfo *no, int *j, int *nocs, NdbOcInfo ***oclist )
+{
+ int i;
+ NdbOcInfo **ol2;
+
+ for ( i=0; i<no->no_nsets; i++ ) {
+ ndb_oc_get( op, no->no_sets[i], j, nocs, oclist );
+ }
+
+ /* Don't insert twice */
+ ol2 = *oclist;
+ for ( i=0; i<*j; i++ )
+ if ( ol2[i] == no )
+ return;
+
+ if ( *j >= *nocs ) {
+ *nocs *= 2;
+ ol2 = (NdbOcInfo **)op->o_tmprealloc( *oclist, *nocs * sizeof(NdbOcInfo *), op->o_tmpmemctx );
+ *oclist = ol2;
+ }
+ ol2 = *oclist;
+ ol2[(*j)++] = no;
+}
+
+/* Retrieve attribute data for given entry. The entry's DN and eid should
+ * already be populated.
+ */
+extern "C" int
+ndb_entry_get_data(
+ Operation *op,
+ NdbArgs *NA,
+ int update
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ const NdbDictionary::Dictionary *myDict = NA->ndb->getDictionary();
+ const NdbDictionary::Table *myTable;
+ NdbIndexScanOperation **myop = NULL;
+ Uint64 eid;
+
+ Attribute *a;
+ NdbOcs myOcs;
+ NdbOcInfo *oci, **oclist = NULL;
+ char abuf[65536], *ptr, **attrs = NULL;
+ struct berval bv[2];
+ int *ocx = NULL;
+
+ /* FIXME: abuf should be dynamically allocated */
+
+ int i, j, k, nocs, nattrs, rc = LDAP_OTHER;
+
+ eid = NA->e->e_id;
+
+ ndb_oc_check( op->o_bd, NA->ndb, NA->ocs, &myOcs );
+ myOcs.no_info[myOcs.no_ninfo++] = ni->ni_opattrs;
+ nocs = myOcs.no_ninfo;
+
+ oclist = (NdbOcInfo **)op->o_tmpcalloc( 1, nocs * sizeof(NdbOcInfo *), op->o_tmpmemctx );
+
+ for ( i=0, j=0; i<myOcs.no_ninfo; i++ ) {
+ ndb_oc_get( op, myOcs.no_info[i], &j, &nocs, &oclist );
+ }
+
+ nocs = j;
+ nattrs = 0;
+ for ( i=0; i<nocs; i++ )
+ nattrs += oclist[i]->no_nattrs;
+
+ ocx = (int *)op->o_tmpalloc( nocs * sizeof(int), op->o_tmpmemctx );
+
+ attrs = (char **)op->o_tmpalloc( nattrs * sizeof(char *), op->o_tmpmemctx );
+
+ myop = (NdbIndexScanOperation **)op->o_tmpalloc( nattrs * sizeof(NdbIndexScanOperation *), op->o_tmpmemctx );
+
+ k = 0;
+ ptr = abuf;
+ for ( i=0; i<nocs; i++ ) {
+ oci = oclist[i];
+
+ myop[i] = NA->txn->getNdbIndexScanOperation( "PRIMARY", oci->no_table.bv_val );
+ if ( !myop[i] )
+ goto leave;
+ if ( myop[i]->readTuples( update ? NdbOperation::LM_Exclusive : NdbOperation::LM_CommittedRead ))
+ goto leave;
+ if ( myop[i]->setBound( 0U, NdbIndexScanOperation::BoundEQ, &eid ))
+ goto leave;
+
+ for ( j=0; j<oci->no_nattrs; j++ ) {
+ if ( oci->no_attrs[j]->na_oi != oci )
+ continue;
+ if ( oci->no_attrs[j]->na_flag & NDB_INFO_ATBLOB ) {
+ NdbBlob *bi = myop[i]->getBlobHandle( oci->no_attrs[j]->na_column );
+ attrs[k++] = (char *)bi;
+ } else {
+ attrs[k] = ptr;
+ *ptr++ = 0;
+ if ( oci->no_attrs[j]->na_len > 255 )
+ *ptr++ = 0;
+ ptr += oci->no_attrs[j]->na_len + 1;
+ myop[i]->getValue( oci->no_attrs[j]->na_column, attrs[k++] );
+ }
+ }
+ ocx[i] = k;
+ }
+ /* Must use IgnoreError, because an entry with multiple objectClasses may not
+ * actually have attributes defined in each class / table.
+ */
+ if ( NA->txn->execute( NdbTransaction::NoCommit, NdbOperation::AO_IgnoreError, 1) < 0 )
+ goto leave;
+
+ /* count results */
+ for ( i=0; i<nocs; i++ ) {
+ if (( j = myop[i]->nextResult(true) )) {
+ if ( j < 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "ndb_entry_get_data: first nextResult(%d) failed: %s (%d)\n",
+ i, myop[i]->getNdbError().message, myop[i]->getNdbError().code );
+ }
+ myop[i] = NULL;
+ }
+ }
+
+ nattrs = 0;
+ k = 0;
+ for ( i=0; i<nocs; i++ ) {
+ oci = oclist[i];
+ for ( j=0; j<oci->no_nattrs; j++ ) {
+ unsigned char *buf;
+ int len;
+ if ( oci->no_attrs[j]->na_oi != oci )
+ continue;
+ if ( !myop[i] ) {
+ attrs[k] = NULL;
+ } else if ( oci->no_attrs[j]->na_flag & NDB_INFO_ATBLOB ) {
+ void *vi = attrs[k];
+ NdbBlob *bi = (NdbBlob *)vi;
+ int isNull;
+ bi->getNull( isNull );
+ if ( !isNull ) {
+ nattrs++;
+ } else {
+ attrs[k] = NULL;
+ }
+ } else {
+ buf = (unsigned char *)attrs[k];
+ len = buf[0];
+ if ( oci->no_attrs[j]->na_len > 255 ) {
+ /* MedVar */
+ len |= (buf[1] << 8);
+ }
+ if ( len ) {
+ nattrs++;
+ } else {
+ attrs[k] = NULL;
+ }
+ }
+ k++;
+ }
+ }
+
+ a = attrs_alloc( nattrs+1 );
+ NA->e->e_attrs = a;
+
+ a->a_desc = slap_schema.si_ad_objectClass;
+ a->a_vals = NULL;
+ ber_bvarray_dup_x( &a->a_vals, NA->ocs, NULL );
+ a->a_nvals = a->a_vals;
+ a->a_numvals = myOcs.no_ntext;
+
+ BER_BVZERO( &bv[1] );
+
+ do {
+ a = NA->e->e_attrs->a_next;
+ k = 0;
+ for ( i=0; i<nocs; k=ocx[i], i++ ) {
+ oci = oclist[i];
+ for ( j=0; j<oci->no_nattrs; j++ ) {
+ unsigned char *buf;
+ struct berval nbv;
+ if ( oci->no_attrs[j]->na_oi != oci )
+ continue;
+ buf = (unsigned char *)attrs[k++];
+ if ( !buf )
+ continue;
+ if ( !myop[i] ) {
+ a=a->a_next;
+ continue;
+ }
+ if ( oci->no_attrs[j]->na_flag & NDB_INFO_ATBLOB ) {
+ void *vi = (void *)buf;
+ NdbBlob *bi = (NdbBlob *)vi;
+ Uint64 len;
+ Uint32 len2;
+ int isNull;
+ bi->getNull( isNull );
+ if ( isNull ) {
+ a = a->a_next;
+ continue;
+ }
+ bi->getLength( len );
+ bv[0].bv_len = len;
+ bv[0].bv_val = (char *)ch_malloc( len+1 );
+ len2 = len;
+ if ( bi->readData( bv[0].bv_val, len2 )) {
+ Debug( LDAP_DEBUG_TRACE,
+ "ndb_entry_get_data: blob readData failed: %s (%d), len %d\n",
+ bi->getNdbError().message, bi->getNdbError().code, len2 );
+ }
+ bv[0].bv_val[len] = '\0';
+ ber_bvarray_add_x( &a->a_vals, bv, NULL );
+ } else {
+ bv[0].bv_len = buf[0];
+ if ( oci->no_attrs[j]->na_len > 255 ) {
+ /* MedVar */
+ bv[0].bv_len |= (buf[1] << 8);
+ bv[0].bv_val = (char *)buf+2;
+ buf[1] = 0;
+ } else {
+ bv[0].bv_val = (char *)buf+1;
+ }
+ buf[0] = 0;
+ if ( bv[0].bv_len == 0 ) {
+ a = a->a_next;
+ continue;
+ }
+ bv[0].bv_val[bv[0].bv_len] = '\0';
+ value_add_one( &a->a_vals, bv );
+ }
+ a->a_desc = oci->no_attrs[j]->na_desc;
+ attr_normalize_one( a->a_desc, bv, &nbv, NULL );
+ a->a_numvals++;
+ if ( !BER_BVISNULL( &nbv )) {
+ ber_bvarray_add_x( &a->a_nvals, &nbv, NULL );
+ } else if ( !a->a_nvals ) {
+ a->a_nvals = a->a_vals;
+ }
+ a = a->a_next;
+ }
+ }
+ k = 0;
+ for ( i=0; i<nocs; i++ ) {
+ if ( !myop[i] )
+ continue;
+ if ((j = myop[i]->nextResult(true))) {
+ if ( j < 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "ndb_entry_get_data: last nextResult(%d) failed: %s (%d)\n",
+ i, myop[i]->getNdbError().message, myop[i]->getNdbError().code );
+ }
+ myop[i] = NULL;
+ } else {
+ k = 1;
+ }
+ }
+ } while ( k );
+
+ rc = 0;
+leave:
+ if ( myop ) {
+ op->o_tmpfree( myop, op->o_tmpmemctx );
+ }
+ if ( attrs ) {
+ op->o_tmpfree( attrs, op->o_tmpmemctx );
+ }
+ if ( ocx ) {
+ op->o_tmpfree( ocx, op->o_tmpmemctx );
+ }
+ if ( oclist ) {
+ op->o_tmpfree( oclist, op->o_tmpmemctx );
+ }
+
+ return rc;
+}
+
+static int
+ndb_oc_del(
+ NdbTransaction *txn, Uint64 eid, NdbOcInfo *no )
+{
+ NdbIndexScanOperation *myop;
+ int i, rc;
+
+ for ( i=0; i<no->no_nsets; i++ ) {
+ rc = ndb_oc_del( txn, eid, no->no_sets[i] );
+ if ( rc ) return rc;
+ }
+
+ myop = txn->getNdbIndexScanOperation( "PRIMARY", no->no_table.bv_val );
+ if ( !myop )
+ return LDAP_OTHER;
+ if ( myop->readTuples( NdbOperation::LM_Exclusive ))
+ return LDAP_OTHER;
+ if ( myop->setBound( 0U, NdbIndexScanOperation::BoundEQ, &eid ))
+ return LDAP_OTHER;
+
+ txn->execute(NoCommit);
+ while ( myop->nextResult(true) == 0) {
+ do {
+ myop->deleteCurrentTuple();
+ } while (myop->nextResult(false) == 0);
+ txn->execute(NoCommit);
+ }
+
+ return 0;
+}
+
+extern "C" int
+ndb_entry_del_data(
+ BackendDB *be,
+ NdbArgs *NA
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ Uint64 eid = NA->e->e_id;
+ int i;
+ NdbOcs myOcs;
+
+ ndb_oc_check( be, NA->ndb, NA->ocs, &myOcs );
+ myOcs.no_info[myOcs.no_ninfo++] = ni->ni_opattrs;
+
+ for ( i=0; i<myOcs.no_ninfo; i++ ) {
+ if ( ndb_oc_del( NA->txn, eid, myOcs.no_info[i] ))
+ return LDAP_OTHER;
+ }
+
+ return 0;
+}
+
+extern "C" int
+ndb_dn2rdns(
+ struct berval *dn,
+ NdbRdns *rdns
+)
+{
+ char *beg, *end;
+ int i, len;
+
+ /* Walk thru RDNs */
+ end = dn->bv_val + dn->bv_len;
+ for ( i=0; i<NDB_MAX_RDNS; i++ ) {
+ for ( beg = end-1; beg > dn->bv_val; beg-- ) {
+ if (*beg == ',') {
+ beg++;
+ break;
+ }
+ }
+ if ( beg >= dn->bv_val ) {
+ len = end - beg;
+ /* RDN is too long */
+ if ( len > NDB_RDN_LEN )
+ return LDAP_CONSTRAINT_VIOLATION;
+ memcpy( rdns->nr_buf[i]+1, beg, len );
+ } else {
+ break;
+ }
+ rdns->nr_buf[i][0] = len;
+ end = beg - 1;
+ }
+ /* Too many RDNs in DN */
+ if ( i == NDB_MAX_RDNS && beg > dn->bv_val ) {
+ return LDAP_CONSTRAINT_VIOLATION;
+ }
+ rdns->nr_num = i;
+ return 0;
+}
+
+static int
+ndb_rdns2keys(
+ NdbOperation *myop,
+ NdbRdns *rdns
+)
+{
+ int i;
+ char dummy[2] = {0,0};
+
+ /* Walk thru RDNs */
+ for ( i=0; i<rdns->nr_num; i++ ) {
+ if ( myop->equal( i+RDN_COLUMN, rdns->nr_buf[i] ))
+ return LDAP_OTHER;
+ }
+ for ( ; i<NDB_MAX_RDNS; i++ ) {
+ if ( myop->equal( i+RDN_COLUMN, dummy ))
+ return LDAP_OTHER;
+ }
+ return 0;
+}
+
+/* Store the DN2ID_TABLE fields */
+extern "C" int
+ndb_entry_put_info(
+ BackendDB *be,
+ NdbArgs *NA,
+ int update
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ const NdbDictionary::Dictionary *myDict = NA->ndb->getDictionary();
+ const NdbDictionary::Table *myTable = myDict->getTable( DN2ID_TABLE );
+ NdbOperation *myop;
+ NdbAttrInfo *ai;
+ Attribute *aoc, *a;
+
+ /* Get the entry's objectClass attribute; it's ok to be
+ * absent on a fresh insert
+ */
+ aoc = attr_find( NA->e->e_attrs, slap_schema.si_ad_objectClass );
+ if ( update && !aoc )
+ return LDAP_OBJECT_CLASS_VIOLATION;
+
+ myop = NA->txn->getNdbOperation( myTable );
+ if ( !myop )
+ return LDAP_OTHER;
+ if ( update ) {
+ if ( myop->updateTuple())
+ return LDAP_OTHER;
+ } else {
+ if ( myop->insertTuple())
+ return LDAP_OTHER;
+ }
+
+ if ( ndb_rdns2keys( myop, NA->rdns ))
+ return LDAP_OTHER;
+
+ /* Set entry ID */
+ {
+ Uint64 eid = NA->e->e_id;
+ if ( myop->setValue( EID_COLUMN, eid ))
+ return LDAP_OTHER;
+ }
+
+ /* Set list of objectClasses */
+ /* List is <sp> <class> <sp> <class> <sp> ... so that
+ * searches for " class " will yield accurate results
+ */
+ if ( aoc ) {
+ char *ptr, buf[sizeof(MedVar)];
+ NdbOcs myOcs;
+ int i;
+
+ ndb_oc_check( be, NA->ndb, aoc->a_nvals, &myOcs );
+ ptr = buf+2;
+ *ptr++ = ' ';
+ for ( i=0; i<myOcs.no_ntext; i++ ) {
+ /* data loss... */
+ if ( ptr + myOcs.no_text[i].bv_len + 1 >= &buf[sizeof(buf)] )
+ break;
+ ptr = lutil_strcopy( ptr, myOcs.no_text[i].bv_val );
+ *ptr++ = ' ';
+ }
+
+ /* implicit classes */
+ if ( myOcs.no_nitext ) {
+ *ptr++ = '@';
+ *ptr++ = ' ';
+ for ( i=0; i<myOcs.no_nitext; i++ ) {
+ /* data loss... */
+ if ( ptr + myOcs.no_itext[i].bv_len + 1 >= &buf[sizeof(buf)] )
+ break;
+ ptr = lutil_strcopy( ptr, myOcs.no_itext[i].bv_val );
+ *ptr++ = ' ';
+ }
+ }
+
+ i = ptr - buf - 2;
+ buf[0] = i & 0xff;
+ buf[1] = i >> 8;
+ if ( myop->setValue( OCS_COLUMN, buf ))
+ return LDAP_OTHER;
+ }
+
+ /* Set any indexed attrs */
+ for ( a = NA->e->e_attrs; a; a=a->a_next ) {
+ ai = ndb_ai_find( ni, a->a_desc->ad_type );
+ if ( ai && ( ai->na_flag & NDB_INFO_INDEX )) {
+ char *ptr, buf[sizeof(MedVar)];
+ int len;
+
+ ptr = buf+1;
+ len = a->a_vals[0].bv_len;
+ /* FIXME: data loss */
+ if ( len > ai->na_len )
+ len = ai->na_len;
+ buf[0] = len & 0xff;
+ if ( ai->na_len > 255 ) {
+ *ptr++ = len >> 8;
+ }
+ memcpy( ptr, a->a_vals[0].bv_val, len );
+ if ( myop->setValue( ai->na_ixcol, buf ))
+ return LDAP_OTHER;
+ }
+ }
+
+ return 0;
+}
+
+extern "C" struct berval *
+ndb_str2bvarray(
+ char *str,
+ int len,
+ char delim,
+ void *ctx
+)
+{
+ struct berval *list, tmp;
+ char *beg;
+ int i, num;
+
+ while ( *str == delim ) {
+ str++;
+ len--;
+ }
+
+ while ( str[len-1] == delim ) {
+ str[--len] = '\0';
+ }
+
+ for ( i = 1, beg = str;; i++ ) {
+ beg = strchr( beg, delim );
+ if ( !beg )
+ break;
+ if ( beg >= str + len )
+ break;
+ beg++;
+ }
+
+ num = i;
+ list = (struct berval *)slap_sl_malloc( (num+1)*sizeof(struct berval), ctx);
+
+ for ( i = 0, beg = str; i<num; i++ ) {
+ tmp.bv_val = beg;
+ beg = strchr( beg, delim );
+ if ( beg >= str + len )
+ beg = NULL;
+ if ( beg ) {
+ tmp.bv_len = beg - tmp.bv_val;
+ } else {
+ tmp.bv_len = len - (tmp.bv_val - str);
+ }
+ ber_dupbv_x( &list[i], &tmp, ctx );
+ beg++;
+ }
+
+ BER_BVZERO( &list[i] );
+ return list;
+}
+
+extern "C" struct berval *
+ndb_ref2oclist(
+ const char *ref,
+ void *ctx
+)
+{
+ char *implied;
+
+ /* MedVar */
+ int len = ref[0] | (ref[1] << 8);
+
+ /* don't return the implied classes */
+ implied = (char *)memchr( ref+2, '@', len );
+ if ( implied ) {
+ len = implied - ref - 2;
+ *implied = '\0';
+ }
+
+ return ndb_str2bvarray( (char *)ref+2, len, ' ', ctx );
+}
+
+/* Retrieve the DN2ID_TABLE fields. Can call with NULL ocs if just verifying
+ * the existence of a DN.
+ */
+extern "C" int
+ndb_entry_get_info(
+ Operation *op,
+ NdbArgs *NA,
+ int update,
+ struct berval *matched
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ const NdbDictionary::Dictionary *myDict = NA->ndb->getDictionary();
+ const NdbDictionary::Table *myTable = myDict->getTable( DN2ID_TABLE );
+ NdbOperation *myop[NDB_MAX_RDNS];
+ NdbRecAttr *eid[NDB_MAX_RDNS], *oc[NDB_MAX_RDNS];
+ char idbuf[NDB_MAX_RDNS][2*sizeof(ID)];
+ char ocbuf[NDB_MAX_RDNS][NDB_OC_BUFLEN];
+
+ if ( matched ) {
+ BER_BVZERO( matched );
+ }
+ if ( !myTable ) {
+ return LDAP_OTHER;
+ }
+
+ myop[0] = NA->txn->getNdbOperation( myTable );
+ if ( !myop[0] ) {
+ return LDAP_OTHER;
+ }
+
+ if ( myop[0]->readTuple( update ? NdbOperation::LM_Exclusive : NdbOperation::LM_CommittedRead )) {
+ return LDAP_OTHER;
+ }
+
+ if ( !NA->rdns->nr_num && ndb_dn2rdns( &NA->e->e_name, NA->rdns )) {
+ return LDAP_NO_SUCH_OBJECT;
+ }
+
+ if ( ndb_rdns2keys( myop[0], NA->rdns )) {
+ return LDAP_OTHER;
+ }
+
+ eid[0] = myop[0]->getValue( EID_COLUMN, idbuf[0] );
+ if ( !eid[0] ) {
+ return LDAP_OTHER;
+ }
+
+ ocbuf[0][0] = 0;
+ ocbuf[0][1] = 0;
+ if ( !NA->ocs ) {
+ oc[0] = myop[0]->getValue( OCS_COLUMN, ocbuf[0] );
+ if ( !oc[0] ) {
+ return LDAP_OTHER;
+ }
+ }
+
+ if ( NA->txn->execute(NdbTransaction::NoCommit, NdbOperation::AO_IgnoreError, 1) < 0 ) {
+ return LDAP_OTHER;
+ }
+
+ switch( myop[0]->getNdbError().code ) {
+ case 0:
+ if ( !eid[0]->isNULL() && ( NA->e->e_id = eid[0]->u_64_value() )) {
+ /* If we didn't care about OCs, or we got them */
+ if ( NA->ocs || ocbuf[0][0] || ocbuf[0][1] ) {
+ /* If wanted, return them */
+ if ( !NA->ocs )
+ NA->ocs = ndb_ref2oclist( ocbuf[0], op->o_tmpmemctx );
+ break;
+ }
+ }
+ /* FALLTHRU */
+ case NDB_NO_SUCH_OBJECT: /* no such tuple: look for closest parent */
+ if ( matched ) {
+ int i, j, k;
+ char dummy[2] = {0,0};
+
+ /* get to last RDN, then back up 1 */
+ k = NA->rdns->nr_num - 1;
+
+ for ( i=0; i<k; i++ ) {
+ myop[i] = NA->txn->getNdbOperation( myTable );
+ if ( !myop[i] )
+ return LDAP_OTHER;
+ if ( myop[i]->readTuple( NdbOperation::LM_CommittedRead ))
+ return LDAP_OTHER;
+ for ( j=0; j<=i; j++ ) {
+ if ( myop[i]->equal( j+RDN_COLUMN, NA->rdns->nr_buf[j] ))
+ return LDAP_OTHER;
+ }
+ for ( ;j<NDB_MAX_RDNS; j++ ) {
+ if ( myop[i]->equal( j+RDN_COLUMN, dummy ))
+ return LDAP_OTHER;
+ }
+ eid[i] = myop[i]->getValue( EID_COLUMN, idbuf[i] );
+ if ( !eid[i] ) {
+ return LDAP_OTHER;
+ }
+ ocbuf[i][0] = 0;
+ ocbuf[i][1] = 0;
+ if ( !NA->ocs ) {
+ oc[i] = myop[0]->getValue( OCS_COLUMN, ocbuf[i] );
+ if ( !oc[i] ) {
+ return LDAP_OTHER;
+ }
+ }
+ }
+ if ( NA->txn->execute(NdbTransaction::NoCommit, NdbOperation::AO_IgnoreError, 1) < 0 ) {
+ return LDAP_OTHER;
+ }
+ for ( --i; i>=0; i-- ) {
+ if ( myop[i]->getNdbError().code == 0 ) {
+ for ( j=0; j<=i; j++ )
+ matched->bv_len += NA->rdns->nr_buf[j][0];
+ NA->erdns = NA->rdns->nr_num;
+ NA->rdns->nr_num = j;
+ matched->bv_len += i;
+ matched->bv_val = NA->e->e_name.bv_val +
+ NA->e->e_name.bv_len - matched->bv_len;
+ if ( !eid[i]->isNULL() )
+ NA->e->e_id = eid[i]->u_64_value();
+ if ( !NA->ocs )
+ NA->ocs = ndb_ref2oclist( ocbuf[i], op->o_tmpmemctx );
+ break;
+ }
+ }
+ }
+ return LDAP_NO_SUCH_OBJECT;
+ default:
+ return LDAP_OTHER;
+ }
+
+ return 0;
+}
+
+extern "C" int
+ndb_entry_del_info(
+ BackendDB *be,
+ NdbArgs *NA
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ const NdbDictionary::Dictionary *myDict = NA->ndb->getDictionary();
+ const NdbDictionary::Table *myTable = myDict->getTable( DN2ID_TABLE );
+ NdbOperation *myop;
+
+ myop = NA->txn->getNdbOperation( myTable );
+ if ( !myop )
+ return LDAP_OTHER;
+ if ( myop->deleteTuple())
+ return LDAP_OTHER;
+
+ if ( ndb_rdns2keys( myop, NA->rdns ))
+ return LDAP_OTHER;
+
+ return 0;
+}
+
+extern "C" int
+ndb_next_id(
+ BackendDB *be,
+ Ndb *ndb,
+ ID *id
+)
+{
+ struct ndb_info *ni = (struct ndb_info *) be->be_private;
+ const NdbDictionary::Dictionary *myDict = ndb->getDictionary();
+ const NdbDictionary::Table *myTable = myDict->getTable( NEXTID_TABLE );
+ Uint64 nid = 0;
+ int rc;
+
+ if ( !myTable ) {
+ Debug( LDAP_DEBUG_ANY, "ndb_next_id: " NEXTID_TABLE " table is missing\n",
+ 0, 0, 0 );
+ return LDAP_OTHER;
+ }
+
+ rc = ndb->getAutoIncrementValue( myTable, nid, 1000 );
+ if ( !rc )
+ *id = nid;
+ return rc;
+}
+
+extern "C" { static void ndb_thread_hfree( void *key, void *data ); };
+static void
+ndb_thread_hfree( void *key, void *data )
+{
+ Ndb *ndb = (Ndb *)data;
+ delete ndb;
+}
+
+extern "C" int
+ndb_thread_handle(
+ Operation *op,
+ Ndb **ndb )
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ void *data;
+
+ if ( ldap_pvt_thread_pool_getkey( op->o_threadctx, ni, &data, NULL )) {
+ Ndb *myNdb;
+ int rc;
+ ldap_pvt_thread_mutex_lock( &ni->ni_conn_mutex );
+ myNdb = new Ndb( ni->ni_cluster[ni->ni_nextconn++], ni->ni_dbname );
+ if ( ni->ni_nextconn >= ni->ni_nconns )
+ ni->ni_nextconn = 0;
+ ldap_pvt_thread_mutex_unlock( &ni->ni_conn_mutex );
+ if ( !myNdb ) {
+ return LDAP_OTHER;
+ }
+ rc = myNdb->init(1024);
+ if ( rc ) {
+ delete myNdb;
+ Debug( LDAP_DEBUG_ANY, "ndb_thread_handle: err %d\n",
+ rc, 0, 0 );
+ return rc;
+ }
+ data = (void *)myNdb;
+ if (( rc = ldap_pvt_thread_pool_setkey( op->o_threadctx, ni,
+ data, ndb_thread_hfree, NULL, NULL ))) {
+ delete myNdb;
+ Debug( LDAP_DEBUG_ANY, "ndb_thread_handle: err %d\n",
+ rc, 0, 0 );
+ return rc;
+ }
+ }
+ *ndb = (Ndb *)data;
+ return 0;
+}
+
+extern "C" int
+ndb_entry_get(
+ Operation *op,
+ struct berval *ndn,
+ ObjectClass *oc,
+ AttributeDescription *ad,
+ int rw,
+ Entry **ent )
+{
+ struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+ NdbArgs NA;
+ Entry e = {0};
+ int rc;
+
+ /* Get our NDB handle */
+ rc = ndb_thread_handle( op, &NA.ndb );
+
+ NA.txn = NA.ndb->startTransaction();
+ if( !NA.txn ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(ndb_entry_get) ": startTransaction failed: %s (%d)\n",
+ NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
+ return 1;
+ }
+
+ e.e_name = *ndn;
+ NA.e = &e;
+ /* get entry */
+ {
+ NdbRdns rdns;
+ rdns.nr_num = 0;
+ NA.ocs = NULL;
+ NA.rdns = &rdns;
+ rc = ndb_entry_get_info( op, &NA, rw, NULL );
+ }
+ if ( rc == 0 ) {
+ e.e_name = *ndn;
+ e.e_nname = *ndn;
+ rc = ndb_entry_get_data( op, &NA, 0 );
+ ber_bvarray_free( NA.ocs );
+ if ( rc == 0 ) {
+ if ( oc && !is_entry_objectclass_or_sub( &e, oc )) {
+ attrs_free( e.e_attrs );
+ rc = 1;
+ }
+ }
+ }
+ if ( rc == 0 ) {
+ *ent = entry_alloc();
+ **ent = e;
+ ber_dupbv( &(*ent)->e_name, ndn );
+ ber_dupbv( &(*ent)->e_nname, ndn );
+ } else {
+ rc = 1;
+ }
+ NA.txn->close();
+ return rc;
+}
+
+/* Congestion avoidance code
+ * for Deadlock Rollback
+ */
+
+extern "C" void
+ndb_trans_backoff( int num_retries )
+{
+ int i;
+ int delay = 0;
+ int pow_retries = 1;
+ unsigned long key = 0;
+ unsigned long max_key = -1;
+ struct timeval timeout;
+
+ lutil_entropy( (unsigned char *) &key, sizeof( unsigned long ));
+
+ for ( i = 0; i < num_retries; i++ ) {
+ if ( i >= 5 ) break;
+ pow_retries *= 4;
+ }
+
+ delay = 16384 * (key * (double) pow_retries / (double) max_key);
+ delay = delay ? delay : 1;
+
+ Debug( LDAP_DEBUG_TRACE, "delay = %d, num_retries = %d\n", delay, num_retries, 0 );
+
+ timeout.tv_sec = delay / 1000000;
+ timeout.tv_usec = delay % 1000000;
+ select( 0, NULL, NULL, NULL, &timeout );
+}
+
+extern "C" void
+ndb_check_referral( Operation *op, SlapReply *rs, NdbArgs *NA )
+{
+ struct berval dn, ndn;
+ int i, dif;
+ dif = NA->erdns - NA->rdns->nr_num;
+
+ /* Set full DN of matched into entry */
+ for ( i=0; i<dif; i++ ) {
+ dnParent( &NA->e->e_name, &dn );
+ dnParent( &NA->e->e_nname, &ndn );
+ NA->e->e_name = dn;
+ NA->e->e_nname = ndn;
+ }
+
+ /* return referral only if "disclose" is granted on the object */
+ if ( access_allowed( op, NA->e, slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL )) {
+ Attribute a;
+ for ( i=0; !BER_BVISNULL( &NA->ocs[i] ); i++ );
+ a.a_numvals = i;
+ a.a_desc = slap_schema.si_ad_objectClass;
+ a.a_vals = NA->ocs;
+ a.a_nvals = NA->ocs;
+ a.a_next = NULL;
+ NA->e->e_attrs = &a;
+ if ( is_entry_referral( NA->e )) {
+ NA->e->e_attrs = NULL;
+ ndb_entry_get_data( op, NA, 0 );
+ rs->sr_ref = get_entry_referrals( op, NA->e );
+ if ( rs->sr_ref ) {
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_flags |= REP_REF_MUSTBEFREED;
+ }
+ attrs_free( NA->e->e_attrs );
+ }
+ NA->e->e_attrs = NULL;
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 10:13:01 +0000