openldap/servers/slapd/back-ndb/init.cpp

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2008-08-27 05:48:17 +08:00
/* init.cpp - initialize ndb backend */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
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* Copyright 2008-2015 The OpenLDAP Foundation.
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* 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/unistd.h>
#include <ac/stdlib.h>
#include <ac/errno.h>
#include <sys/stat.h>
#include "back-ndb.h"
#include <lutil.h>
#include "config.h"
extern "C" {
static BI_db_init ndb_db_init;
static BI_db_close ndb_db_close;
static BI_db_open ndb_db_open;
static BI_db_destroy ndb_db_destroy;
}
static struct berval ndb_optable = BER_BVC("OL_opattrs");
static struct berval ndb_opattrs[] = {
BER_BVC("structuralObjectClass"),
BER_BVC("entryUUID"),
BER_BVC("creatorsName"),
BER_BVC("createTimestamp"),
BER_BVC("entryCSN"),
BER_BVC("modifiersName"),
BER_BVC("modifyTimestamp"),
BER_BVNULL
};
static int ndb_oplens[] = {
0, /* structuralOC, default */
36, /* entryUUID */
0, /* creatorsName, default */
26, /* createTimestamp */
40, /* entryCSN */
0, /* modifiersName, default */
26, /* modifyTimestamp */
-1
};
static Uint32 ndb_lastrow[1];
NdbInterpretedCode *ndb_lastrow_code;
static int
ndb_db_init( BackendDB *be, ConfigReply *cr )
{
struct ndb_info *ni;
int rc = 0;
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(ndb_db_init) ": Initializing ndb database\n",
0, 0, 0 );
/* allocate backend-database-specific stuff */
ni = (struct ndb_info *) ch_calloc( 1, sizeof(struct ndb_info) );
be->be_private = ni;
be->be_cf_ocs = be->bd_info->bi_cf_ocs;
ni->ni_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
ldap_pvt_thread_rdwr_init( &ni->ni_ai_rwlock );
ldap_pvt_thread_rdwr_init( &ni->ni_oc_rwlock );
ldap_pvt_thread_mutex_init( &ni->ni_conn_mutex );
#ifdef DO_MONITORING
rc = ndb_monitor_db_init( be );
#endif
return rc;
}
static int
ndb_db_close( BackendDB *be, ConfigReply *cr );
static int
ndb_db_open( BackendDB *be, ConfigReply *cr )
{
struct ndb_info *ni = (struct ndb_info *) be->be_private;
char sqlbuf[BUFSIZ], *ptr;
int rc, i;
if ( be->be_suffix == NULL ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: need suffix" );
Debug( LDAP_DEBUG_ANY, "%s\n",
cr->msg, 0, 0 );
return -1;
}
Debug( LDAP_DEBUG_ARGS,
LDAP_XSTRING(ndb_db_open) ": \"%s\"\n",
be->be_suffix[0].bv_val, 0, 0 );
if ( ni->ni_nconns < 1 )
ni->ni_nconns = 1;
ni->ni_cluster = (Ndb_cluster_connection **)ch_calloc( ni->ni_nconns, sizeof( Ndb_cluster_connection *));
for ( i=0; i<ni->ni_nconns; i++ ) {
ni->ni_cluster[i] = new Ndb_cluster_connection( ni->ni_connectstr );
rc = ni->ni_cluster[i]->connect( 20, 5, 1 );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: ni_cluster[%d]->connect failed (%d)",
i, rc );
goto fail;
}
}
for ( i=0; i<ni->ni_nconns; i++ ) {
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rc = ni->ni_cluster[i]->wait_until_ready( 30, 30 );
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if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: ni_cluster[%d]->wait failed (%d)",
i, rc );
goto fail;
}
}
mysql_init( &ni->ni_sql );
if ( !mysql_real_connect( &ni->ni_sql, ni->ni_hostname, ni->ni_username, ni->ni_password,
"", ni->ni_port, ni->ni_socket, ni->ni_clflag )) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: mysql_real_connect failed, %s (%d)",
mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
rc = -1;
goto fail;
}
sprintf( sqlbuf, "CREATE DATABASE IF NOT EXISTS %s", ni->ni_dbname );
rc = mysql_query( &ni->ni_sql, sqlbuf );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: CREATE DATABASE %s failed, %s (%d)",
ni->ni_dbname, mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
goto fail;
}
sprintf( sqlbuf, "USE %s", ni->ni_dbname );
rc = mysql_query( &ni->ni_sql, sqlbuf );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: USE DATABASE %s failed, %s (%d)",
ni->ni_dbname, mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
goto fail;
}
ptr = sqlbuf;
ptr += sprintf( ptr, "CREATE TABLE IF NOT EXISTS " DN2ID_TABLE " ("
"eid bigint unsigned NOT NULL, "
"object_classes VARCHAR(1024) NOT NULL, "
"a0 VARCHAR(128) NOT NULL DEFAULT '', "
"a1 VARCHAR(128) NOT NULL DEFAULT '', "
"a2 VARCHAR(128) NOT NULL DEFAULT '', "
"a3 VARCHAR(128) NOT NULL DEFAULT '', "
"a4 VARCHAR(128) NOT NULL DEFAULT '', "
"a5 VARCHAR(128) NOT NULL DEFAULT '', "
"a6 VARCHAR(128) NOT NULL DEFAULT '', "
"a7 VARCHAR(128) NOT NULL DEFAULT '', "
"a8 VARCHAR(128) NOT NULL DEFAULT '', "
"a9 VARCHAR(128) NOT NULL DEFAULT '', "
"a10 VARCHAR(128) NOT NULL DEFAULT '', "
"a11 VARCHAR(128) NOT NULL DEFAULT '', "
"a12 VARCHAR(128) NOT NULL DEFAULT '', "
"a13 VARCHAR(128) NOT NULL DEFAULT '', "
"a14 VARCHAR(128) NOT NULL DEFAULT '', "
"a15 VARCHAR(128) NOT NULL DEFAULT '', "
"PRIMARY KEY (a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15), "
"UNIQUE KEY eid (eid) USING HASH" );
/* Create index columns */
if ( ni->ni_attridxs ) {
ListNode *ln;
int newcol = 0;
*ptr++ = ',';
*ptr++ = ' ';
for ( ln = ni->ni_attridxs; ln; ln=ln->ln_next ) {
NdbAttrInfo *ai = (NdbAttrInfo *)ln->ln_data;
ptr += sprintf( ptr, "`%s` VARCHAR(%d), ",
ai->na_name.bv_val, ai->na_len );
}
ptr = lutil_strcopy(ptr, "KEY " INDEX_NAME " (" );
for ( ln = ni->ni_attridxs; ln; ln=ln->ln_next ) {
NdbAttrInfo *ai = (NdbAttrInfo *)ln->ln_data;
if ( newcol ) *ptr++ = ',';
*ptr++ = '`';
ptr = lutil_strcopy( ptr, ai->na_name.bv_val );
*ptr++ = '`';
ai->na_ixcol = newcol + 18;
newcol++;
}
*ptr++ = ')';
}
strcpy( ptr, ") ENGINE=ndb" );
rc = mysql_query( &ni->ni_sql, sqlbuf );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: CREATE TABLE " DN2ID_TABLE " failed, %s (%d)",
mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
goto fail;
}
rc = mysql_query( &ni->ni_sql, "CREATE TABLE IF NOT EXISTS " NEXTID_TABLE " ("
"a bigint unsigned AUTO_INCREMENT PRIMARY KEY ) ENGINE=ndb" );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: CREATE TABLE " NEXTID_TABLE " failed, %s (%d)",
mysql_error(&ni->ni_sql), mysql_errno(&ni->ni_sql) );
goto fail;
}
{
NdbOcInfo *oci;
rc = ndb_aset_get( ni, &ndb_optable, ndb_opattrs, &oci );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: ndb_aset_get( %s ) failed (%d)",
ndb_optable.bv_val, rc );
goto fail;
}
for ( i=0; ndb_oplens[i] >= 0; i++ ) {
if ( ndb_oplens[i] )
oci->no_attrs[i]->na_len = ndb_oplens[i];
}
rc = ndb_aset_create( ni, oci );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: ndb_aset_create( %s ) failed (%d)",
ndb_optable.bv_val, rc );
goto fail;
}
ni->ni_opattrs = oci;
}
/* Create attribute sets */
{
ListNode *ln;
for ( ln = ni->ni_attrsets; ln; ln=ln->ln_next ) {
NdbOcInfo *oci = (NdbOcInfo *)ln->ln_data;
rc = ndb_aset_create( ni, oci );
if ( rc ) {
snprintf( cr->msg, sizeof( cr->msg ),
"ndb_db_open: ndb_aset_create( %s ) failed (%d)",
oci->no_name.bv_val, rc );
goto fail;
}
}
}
/* Initialize any currently used objectClasses */
{
Ndb *ndb;
const NdbDictionary::Dictionary *myDict;
ndb = new Ndb( ni->ni_cluster[0], ni->ni_dbname );
ndb->init(1024);
myDict = ndb->getDictionary();
ndb_oc_read( ni, myDict );
delete ndb;
}
#ifdef DO_MONITORING
/* monitor setup */
rc = ndb_monitor_db_open( be );
if ( rc != 0 ) {
goto fail;
}
#endif
return 0;
fail:
Debug( LDAP_DEBUG_ANY, "%s\n",
cr->msg, 0, 0 );
ndb_db_close( be, NULL );
return rc;
}
static int
ndb_db_close( BackendDB *be, ConfigReply *cr )
{
int i;
struct ndb_info *ni = (struct ndb_info *) be->be_private;
mysql_close( &ni->ni_sql );
if ( ni->ni_cluster ) {
for ( i=0; i<ni->ni_nconns; i++ ) {
if ( ni->ni_cluster[i] ) {
delete ni->ni_cluster[i];
ni->ni_cluster[i] = NULL;
}
}
ch_free( ni->ni_cluster );
ni->ni_cluster = NULL;
}
#ifdef DO_MONITORING
/* monitor handling */
(void)ndb_monitor_db_close( be );
#endif
return 0;
}
static int
ndb_db_destroy( BackendDB *be, ConfigReply *cr )
{
struct ndb_info *ni = (struct ndb_info *) be->be_private;
#ifdef DO_MONITORING
/* monitor handling */
(void)ndb_monitor_db_destroy( be );
#endif
ldap_pvt_thread_mutex_destroy( &ni->ni_conn_mutex );
ldap_pvt_thread_rdwr_destroy( &ni->ni_ai_rwlock );
ldap_pvt_thread_rdwr_destroy( &ni->ni_oc_rwlock );
ch_free( ni );
be->be_private = NULL;
return 0;
}
extern "C" int
ndb_back_initialize(
BackendInfo *bi )
{
static char *controls[] = {
LDAP_CONTROL_ASSERT,
LDAP_CONTROL_MANAGEDSAIT,
LDAP_CONTROL_NOOP,
LDAP_CONTROL_PAGEDRESULTS,
LDAP_CONTROL_PRE_READ,
LDAP_CONTROL_POST_READ,
LDAP_CONTROL_SUBENTRIES,
LDAP_CONTROL_X_PERMISSIVE_MODIFY,
#ifdef LDAP_X_TXN
LDAP_CONTROL_X_TXN_SPEC,
#endif
NULL
};
int rc = 0;
/* initialize the underlying database system */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(ndb_back_initialize) ": initialize ndb backend\n", 0, 0, 0 );
ndb_init();
ndb_lastrow_code = new NdbInterpretedCode( NULL, ndb_lastrow, 1 );
ndb_lastrow_code->interpret_exit_last_row();
ndb_lastrow_code->finalise();
bi->bi_flags |=
SLAP_BFLAG_INCREMENT |
SLAP_BFLAG_SUBENTRIES |
SLAP_BFLAG_ALIASES |
SLAP_BFLAG_REFERRALS;
bi->bi_controls = controls;
bi->bi_open = 0;
bi->bi_close = 0;
bi->bi_config = 0;
bi->bi_destroy = 0;
bi->bi_db_init = ndb_db_init;
bi->bi_db_config = config_generic_wrapper;
bi->bi_db_open = ndb_db_open;
bi->bi_db_close = ndb_db_close;
bi->bi_db_destroy = ndb_db_destroy;
bi->bi_op_add = ndb_back_add;
bi->bi_op_bind = ndb_back_bind;
bi->bi_op_compare = ndb_back_compare;
bi->bi_op_delete = ndb_back_delete;
bi->bi_op_modify = ndb_back_modify;
bi->bi_op_modrdn = ndb_back_modrdn;
bi->bi_op_search = ndb_back_search;
bi->bi_op_unbind = 0;
#if 0
bi->bi_extended = ndb_extended;
bi->bi_chk_referrals = ndb_referrals;
#endif
bi->bi_operational = ndb_operational;
bi->bi_has_subordinates = ndb_has_subordinates;
bi->bi_entry_release_rw = 0;
bi->bi_entry_get_rw = ndb_entry_get;
/*
* hooks for slap tools
*/
bi->bi_tool_entry_open = ndb_tool_entry_open;
bi->bi_tool_entry_close = ndb_tool_entry_close;
bi->bi_tool_entry_first = ndb_tool_entry_first;
bi->bi_tool_entry_next = ndb_tool_entry_next;
bi->bi_tool_entry_get = ndb_tool_entry_get;
bi->bi_tool_entry_put = ndb_tool_entry_put;
#if 0
bi->bi_tool_entry_reindex = ndb_tool_entry_reindex;
bi->bi_tool_sync = 0;
bi->bi_tool_dn2id_get = ndb_tool_dn2id_get;
bi->bi_tool_entry_modify = ndb_tool_entry_modify;
#endif
bi->bi_connection_init = 0;
bi->bi_connection_destroy = 0;
rc = ndb_back_init_cf( bi );
return rc;
}
#if SLAPD_NDB == SLAPD_MOD_DYNAMIC
/* conditionally define the init_module() function */
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extern "C" { int init_module( int argc, char *argv[] ); }
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SLAP_BACKEND_INIT_MODULE( ndb )
#endif /* SLAPD_NDB == SLAPD_MOD_DYNAMIC */