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openldap/servers/slapd/back-monitor/init.c
Pierangelo Masarati 5fdba27288 This is the skeleton of back-monitor, the slapd monitoring backend. 
The old monitoring stuff has been removed; the new backend is
enabled by using --enable-monitor at configure time and requires

	database monitor

in slapd.conf to be activated.  At present it implements a subset
of the old monitoring options, and it should be extendable to
a number of different subsystems.  The search operation has been
implementd; it does not honor abandon or size/time limits, though.
The compare and the abandon operations are planned.

Copyright Pierangelo Masarati <ando@sys-net.it>; the code is provided
AS IS with NO GUARANTEE.  It can be used and distributed under the
conditions stated by the OpenLDAP Public License.
2001-07-14 17:34:24 +00:00

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/* init.c - initialize monitor backend */
/*
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/*
* Copyright 2001 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*
* Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
*
* This work has beed deveolped for the OpenLDAP Foundation
* in the hope that it may be useful to the Open Source community,
* but WITHOUT ANY WARRANTY.
*
* Permission is granted to anyone to use this software for any purpose
* on any computer system, and to alter it and redistribute it, subject
* to the following restrictions:
*
* 1. The author and SysNet s.n.c. are not responsible for the consequences
* of use of this software, no matter how awful, even if they arise from
* flaws in it.
*
* 2. The origin of this software must not be misrepresented, either by
* explicit claim or by omission. Since few users ever read sources,
* credits should appear in the documentation.
*
* 3. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software. Since few users
* ever read sources, credits should appear in the documentation.
* SysNet s.n.c. cannot be responsible for the consequences of the
* alterations.
*
* 4. This notice may not be removed or altered.
*/
#include "portable.h"
#include <stdio.h>
#include "slap.h"
#include "back-monitor.h"
/*
* database monitor can be defined once only
*/
static int monitor_defined = 0;
/*
* used by many functions to add description to entries
*/
AttributeDescription *monitor_ad_desc = NULL;
/*
* subsystem data
*/
struct monitorsubsys monitor_subsys[] = {
{
SLAPD_MONITOR_LISTENER, SLAPD_MONITOR_LISTENER_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
NULL, /* update */
NULL /* create */
}, {
SLAPD_MONITOR_DATABASE, SLAPD_MONITOR_DATABASE_NAME,
NULL, NULL, NULL,
MONITOR_F_PERSISTENT_CH,
monitor_subsys_database_init,
NULL, /* update */
NULL /* create */
}, {
SLAPD_MONITOR_BACKEND, SLAPD_MONITOR_BACKEND_NAME,
NULL, NULL, NULL,
MONITOR_F_PERSISTENT_CH,
monitor_subsys_backend_init,
NULL, /* update */
NULL /* create */
}, {
SLAPD_MONITOR_THREAD, SLAPD_MONITOR_THREAD_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
monitor_subsys_thread_update,
NULL /* create */
}, {
SLAPD_MONITOR_SASL, SLAPD_MONITOR_SASL_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
NULL, /* update */
NULL /* create */
}, {
SLAPD_MONITOR_TLS, SLAPD_MONITOR_TLS_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
NULL, /* update */
NULL /* create */
}, {
SLAPD_MONITOR_CONN, SLAPD_MONITOR_CONN_NAME,
NULL, NULL, NULL,
MONITOR_F_VOLATILE_CH,
monitor_subsys_conn_init,
monitor_subsys_conn_update,
monitor_subsys_conn_create
}, {
SLAPD_MONITOR_READW, SLAPD_MONITOR_READW_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
monitor_subsys_readw_update,
NULL /* create */
}, {
SLAPD_MONITOR_WRITEW, SLAPD_MONITOR_WRITEW_NAME,
NULL, NULL, NULL,
MONITOR_F_NONE,
NULL, /* init */
monitor_subsys_writew_update,
NULL /* create */
}, { -1, NULL }
};
int
monitor_back_initialize(
BackendInfo *bi
)
{
static char *controls[] = {
LDAP_CONTROL_MANAGEDSAIT,
NULL
};
bi->bi_controls = controls;
bi->bi_init = NULL;
bi->bi_open = monitor_back_open;
bi->bi_config = monitor_back_config;
bi->bi_close = NULL;
bi->bi_destroy = NULL;
bi->bi_db_init = monitor_back_db_init;
bi->bi_db_config = monitor_back_db_config;
bi->bi_db_open = NULL;
bi->bi_db_close = NULL;
bi->bi_db_destroy = monitor_back_db_destroy;
bi->bi_op_bind = NULL;
bi->bi_op_unbind = NULL;
bi->bi_op_search = monitor_back_search;
bi->bi_op_compare = monitor_back_compare;
bi->bi_op_modify = NULL;
bi->bi_op_modrdn = NULL;
bi->bi_op_add = NULL;
bi->bi_op_delete = NULL;
bi->bi_op_abandon = monitor_back_abandon;
bi->bi_extended = NULL;
bi->bi_entry_release_rw = NULL;
bi->bi_acl_group = NULL;
bi->bi_acl_attribute = NULL;
bi->bi_chk_referrals = NULL;
/*
* hooks for slap tools
*/
bi->bi_tool_entry_open = NULL;
bi->bi_tool_entry_close = NULL;
bi->bi_tool_entry_first = NULL;
bi->bi_tool_entry_next = NULL;
bi->bi_tool_entry_get = NULL;
bi->bi_tool_entry_put = NULL;
bi->bi_tool_entry_reindex = NULL;
bi->bi_tool_sync = NULL;
bi->bi_connection_init = 0;
bi->bi_connection_destroy = 0;
return 0;
}
int
monitor_back_db_init(
BackendDB *be
)
{
struct monitorinfo *mi;
Entry *e, *e_tmp;
struct monitorentrypriv *mp;
int i;
char buf[1024];
const char *text;
if ( monitor_defined ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"only one monitor backend is allowed\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"only one monitor backend is allowed\n%s%s%s",
"", "", "" );
#endif
return( -1 );
}
monitor_defined++;
charray_add( &be->be_suffix, SLAPD_MONITOR_DN );
charray_add( &be->be_nsuffix, SLAPD_MONITOR_NDN );
mi = ( struct monitorinfo * )ch_calloc( sizeof( struct monitorinfo ), 1 );
ldap_pvt_thread_mutex_init( &mi->mi_cache_mutex );
if ( slap_str2ad( "description", &monitor_ad_desc, &text ) ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"monitor_back_db_init: %s\n", text ));
#else
Debug( LDAP_DEBUG_ANY,
"monitor_subsys_backend_init: %s\n%s%s",
text, "", "" );
#endif
return( -1 );
}
e_tmp = NULL;
for ( i = 0; monitor_subsys[ i ].mss_name != NULL; i++ ) {
int len = strlen( monitor_subsys[ i ].mss_name );
monitor_subsys[ i ].mss_rdn = ch_calloc( sizeof( char ),
4 + len );
strcpy( monitor_subsys[ i ].mss_rdn, "cn=" );
strcat( monitor_subsys[ i ].mss_rdn,
monitor_subsys[ i ].mss_name );
monitor_subsys[ i ].mss_dn = ch_calloc( sizeof( char ),
4 + len + sizeof( SLAPD_MONITOR_DN ) );
strcpy( monitor_subsys[ i ].mss_dn,
monitor_subsys[ i ].mss_rdn );
strcat( monitor_subsys[ i ].mss_dn, "," );
strcat( monitor_subsys[ i ].mss_dn, SLAPD_MONITOR_DN );
monitor_subsys[ i ].mss_ndn
= ch_strdup( monitor_subsys[ i ].mss_dn );
dn_normalize( monitor_subsys[ i ].mss_ndn );
snprintf( buf, sizeof( buf ),
"dn: %s\n"
"objectClass: top\n"
"objectClass: LDAPsubEntry\n"
#ifdef SLAPD_MONITORSUBENTRY
"objectClass: monitorSubEntry\n"
#else /* !SLAPD_MONITORSUBENTRY */
"objectClass: extensibleObject\n"
#endif /* !SLAPD_MONITORSUBENTRY */
"cn: %s\n",
monitor_subsys[ i ].mss_dn,
monitor_subsys[ i ].mss_name );
e = str2entry( buf );
if ( e == NULL) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"unable to create '%s' entry\n",
monitor_subsys[ i ].mss_dn ));
#else
Debug( LDAP_DEBUG_ANY,
"unable to create '%s' entry\n%s%s",
monitor_subsys[ i ].mss_dn, "", "" );
#endif
return( -1 );
}
mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
e->e_private = ( void * )mp;
mp->mp_info = &monitor_subsys[ i ];
mp->mp_children = NULL;
mp->mp_next = e_tmp;
mp->mp_flags = monitor_subsys[ i ].mss_flags;
if ( monitor_cache_add( mi, e ) ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"unable to add entry '%s' to cache\n",
monitor_subsys[ i ].mss_dn ));
#else
Debug( LDAP_DEBUG_ANY,
"unable to add entry '%s' to cache\n%s%s",
monitor_subsys[ i ].mss_dn, "", "" );
#endif
return -1;
}
e_tmp = e;
}
/*
* creates the "cn=Monitor" entry
* and all the subsystem specific entries
*/
snprintf( buf, sizeof( buf ),
"dn: %s\n"
"objectClass: top\n"
"objectClass: LDAPsubEntry\n"
#ifdef SLAPD_MONITORSUBENTRY
"objectClass: monitorSubEntry\n"
#else /* !SLAPD_MONITORSUBENTRY */
"objectClass: extensibleObject\n"
#endif /* !SLAPD_MONITORSUBENTRY */
"cn: Monitor\n"
"description: %s",
SLAPD_MONITOR_DN,
(char *) Versionstr
);
e = str2entry( buf );
if ( e == NULL) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"unable to create '%s' entry\n",
SLAPD_MONITOR_DN ));
#else
Debug( LDAP_DEBUG_ANY,
"unable to create '%s' entry\n%s%s",
SLAPD_MONITOR_DN, "", "" );
#endif
return( -1 );
}
mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
e->e_private = ( void * )mp;
mp->mp_info = NULL;
mp->mp_children = e_tmp;
mp->mp_next = NULL;
if ( monitor_cache_add( mi, e ) ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"unable to add entry '%s' to cache\n",
SLAPD_MONITOR_DN ));
#else
Debug( LDAP_DEBUG_ANY,
"unable to add entry '%s' to cache\n%s%s",
SLAPD_MONITOR_DN, "", "" );
#endif
return -1;
}
be->be_private = mi;
return 0;
}
int
monitor_back_open(
BackendInfo *bi
)
{
BackendDB *be;
struct monitorsubsys *ms;
/*
* adds the monitor backend
*/
be = select_backend( SLAPD_MONITOR_NDN, 0 );
if ( be == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
"unable to get monitor backend\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"unable to get monitor backend\n%s%s%s", "", "", "" );
#endif
return( -1 );
}
for ( ms = monitor_subsys; ms->mss_name != NULL; ms++ ) {
if ( ms->mss_init && ( *ms->mss_init )( be ) ) {
return( -1 );
}
}
return( 0 );
}
int
monitor_back_config(
BackendInfo *bi,
const char *fname,
int lineno,
int argc,
char **argv
)
{
/*
* eventually, will hold backend specific configuration parameters
*/
return 0;
}
int
monitor_back_db_config(
Backend *be,
const char *fname,
int lineno,
int argc,
char **argv
)
{
#ifdef NEW_LOGGING
LDAP_LOG(( "config", LDAP_DEBUG_NOTICE,
"line %d of file '%s' will be ignored\n", lineno, fname ));
#else
Debug( LDAP_DEBUG_CONFIG,
"line %d of file '%s' will be ignored\n%s", lineno, fname, "" );
#endif
return( 0 );
}
int
monitor_back_db_destroy(
BackendDB *be
)
{
/*
* FIXME: destroys all the data
*/
return 0;
}
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