mirror/openldap
2
0
Fork 0
mirror of https://git.openldap.org/openldap/openldap.git synced 2024-12-21 03:10:25 +08:00
Code Issues Packages Projects Releases Wiki Activity
e36bde9180
openldap/servers/slapd/backend.c

1122 lines
23 KiB
C
Raw Blame History

/* $OpenLDAP$ */
/*
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* backend.c - routines for dealing with back-end databases */
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include <sys/stat.h>
#include "slap.h"
#include "lutil.h"
/*
* If a module is configured as dynamic, its header should not
* get included into slapd. While this is a general rule and does
* not have much of an effect in UNIX, this rule should be adhered
* to for Windows, where dynamic object code should not be implicitly
* imported into slapd without appropriate __declspec(dllimport) directives.
*/
#if defined(SLAPD_BDB) && !defined(SLAPD_BDB_DYNAMIC)
#include "back-bdb/external.h"
#endif
#if defined(SLAPD_DNSSRV) && !defined(SLAPD_DNSSRV_DYNAMIC)
#include "back-dnssrv/external.h"
#endif
#if defined(SLAPD_LDAP) && !defined(SLAPD_LDAP_DYNAMIC)
#include "back-ldap/external.h"
#endif
#if defined(SLAPD_LDBM) && !defined(SLAPD_LDBM_DYNAMIC)
#include "back-ldbm/external.h"
#endif
#if defined(SLAPD_META) && !defined(SLAPD_META_DYNAMIC)
#include "back-meta/external.h"
#endif
#if defined(SLAPD_MONITOR) && !defined(SLAPD_MONITOR_DYNAMIC)
#include "back-monitor/external.h"
#endif
#if defined(SLAPD_PASSWD) && !defined(SLAPD_PASSWD_DYNAMIC)
#include "back-passwd/external.h"
#endif
#if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
#include "back-perl/external.h"
#endif
#if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
#include "back-shell/external.h"
#endif
#if defined(SLAPD_TCL) && !defined(SLAPD_TCL_DYNAMIC)
#include "back-tcl/external.h"
#endif
#if defined(SLAPD_SQL) && !defined(SLAPD_SQL_DYNAMIC)
#include "back-sql/external.h"
#endif
#if defined(SLAPD_PRIVATE) && !defined(SLAPD_PRIVATE_DYNAMIC)
#include "private/external.h"
#endif
static BackendInfo binfo[] = {
#if defined(SLAPD_BDB) && !defined(SLAPD_BDB_DYNAMIC)
{"bdb", bdb_initialize},
#endif
#if defined(SLAPD_DNSSRV) && !defined(SLAPD_DNSSRV_DYNAMIC)
{"dnssrv", dnssrv_back_initialize},
#endif
#if defined(SLAPD_LDAP) && !defined(SLAPD_LDAP_DYNAMIC)
{"ldap", ldap_back_initialize},
#endif
#if defined(SLAPD_LDBM) && !defined(SLAPD_LDBM_DYNAMIC)
{"ldbm", ldbm_back_initialize},
#endif
#if defined(SLAPD_META) && !defined(SLAPD_META_DYNAMIC)
{"meta", meta_back_initialize},
#endif
#if defined(SLAPD_MONITOR) && !defined(SLAPD_MONITOR_DYNAMIC)
{"monitor", monitor_back_initialize},
#endif
#if defined(SLAPD_PASSWD) && !defined(SLAPD_PASSWD_DYNAMIC)
{"passwd", passwd_back_initialize},
#endif
#if defined(SLAPD_PERL) && !defined(SLAPD_PERL_DYNAMIC)
{"perl", perl_back_initialize},
#endif
#if defined(SLAPD_SHELL) && !defined(SLAPD_SHELL_DYNAMIC)
{"shell", shell_back_initialize},
#endif
#if defined(SLAPD_TCL) && !defined(SLAPD_TCL_DYNAMIC)
{"tcl", tcl_back_initialize},
#endif
#if defined(SLAPD_SQL) && !defined(SLAPD_SQL_DYNAMIC)
{"sql", sql_back_initialize},
#endif
/* for any private backend */
#if defined(SLAPD_PRIVATE) && !defined(SLAPD_PRIVATE_DYNAMIC)
{"private", private_back_initialize},
#endif
{NULL}
};
int nBackendInfo = 0;
BackendInfo *backendInfo = NULL;
int nBackendDB = 0;
BackendDB *backendDB = NULL;
int backend_init(void)
{
int rc = -1;
if((nBackendInfo != 0) || (backendInfo != NULL)) {
/* already initialized */
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
"backend_init: backend already initialized\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_init: already initialized.\n", 0, 0, 0 );
#endif
return -1;
}
for( ;
binfo[nBackendInfo].bi_type != NULL;
nBackendInfo++ )
{
rc = binfo[nBackendInfo].bi_init( &binfo[nBackendInfo] );
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
"backend_init: initialized for type \"%s\"\n",
binfo[nBackendInfo].bi_type ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_init: initialized for type \"%s\"\n",
binfo[nBackendInfo].bi_type, 0, 0 );
#endif
/* destroy those we've already inited */
for( nBackendInfo--;
nBackendInfo >= 0 ;
nBackendInfo-- )
{
if ( binfo[nBackendInfo].bi_destroy ) {
binfo[nBackendInfo].bi_destroy(
&binfo[nBackendInfo] );
}
}
return rc;
}
}
if ( nBackendInfo > 0) {
backendInfo = binfo;
return 0;
}
#ifdef SLAPD_MODULES
return 0;
#else
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
"backend_init: failed\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_init: failed\n",
0, 0, 0 );
#endif
return rc;
#endif /* SLAPD_MODULES */
}
int backend_add(BackendInfo *aBackendInfo)
{
int rc = 0;
if ((rc = aBackendInfo->bi_init(aBackendInfo)) != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
"backend_add: initialization for type \"%s\" failed\n",
aBackendInfo->bi_type ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_add: initialization for type \"%s\" failed\n",
aBackendInfo->bi_type, 0, 0 );
#endif
return rc;
}
/* now add the backend type to the Backend Info List */
{
BackendInfo *newBackendInfo = 0;
/* if backendInfo == binfo no deallocation of old backendInfo */
if (backendInfo == binfo) {
newBackendInfo = ch_calloc(nBackendInfo + 1, sizeof(BackendInfo));
AC_MEMCPY(newBackendInfo, backendInfo, sizeof(BackendInfo) *
nBackendInfo);
} else {
newBackendInfo = ch_realloc(backendInfo, sizeof(BackendInfo) *
(nBackendInfo + 1));
}
AC_MEMCPY(&newBackendInfo[nBackendInfo], aBackendInfo,
sizeof(BackendInfo));
backendInfo = newBackendInfo;
nBackendInfo++;
return 0;
}
}
int backend_startup(Backend *be)
{
int i;
int rc = 0;
if( ! ( nBackendDB > 0 ) ) {
/* no databases */
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_INFO,
"backend_startup: %d databases to startup. \n",
nBackendDB ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_startup: %d databases to startup.\n",
nBackendDB, 0, 0 );
#endif
return 1;
}
if(be != NULL) {
/* startup a specific backend database */
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
"backend_startup: starting \"%s\"\n",
be->be_suffix[0] ));
#else
Debug( LDAP_DEBUG_TRACE,
"backend_startup: starting \"%s\"\n",
be->be_suffix[0], 0, 0 );
#endif
if ( be->bd_info->bi_open ) {
rc = be->bd_info->bi_open( be->bd_info );
}
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_CRIT,
"backend_startup: bi_open failed!\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_startup: bi_open failed!\n",
0, 0, 0 );
#endif
return rc;
}
if ( be->bd_info->bi_db_open ) {
rc = be->bd_info->bi_db_open( be );
}
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_CRIT,
"backend_startup: bi_db_open failed!\n" ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_startup: bi_db_open failed!\n",
0, 0, 0 );
#endif
return rc;
}
return rc;
}
/* open each backend type */
for( i = 0; i < nBackendInfo; i++ ) {
if( backendInfo[i].bi_nDB == 0) {
/* no database of this type, don't open */
continue;
}
if( backendInfo[i].bi_open ) {
rc = backendInfo[i].bi_open(
&backendInfo[i] );
}
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_CRIT,
"backend_startup: bi_open %d failed!\n", i ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_startup: bi_open %d failed!\n",
i, 0, 0 );
#endif
return rc;
}
}
/* open each backend database */
for( i = 0; i < nBackendDB; i++ ) {
/* append global access controls */
acl_append( &backendDB[i].be_acl, global_acl );
if ( backendDB[i].bd_info->bi_db_open ) {
rc = backendDB[i].bd_info->bi_db_open(
&backendDB[i] );
}
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_CRIT,
"backend_startup: bi_db_open %d failed!\n", i ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_startup: bi_db_open %d failed!\n",
i, 0, 0 );
#endif
return rc;
}
}
return rc;
}
int backend_num( Backend *be )
{
int i;
if( be == NULL ) return -1;
for( i = 0; i < nBackendDB; i++ ) {
if( be == &backendDB[i] ) return i;
}
return -1;
}
int backend_shutdown( Backend *be )
{
int i;
int rc = 0;
if( be != NULL ) {
/* shutdown a specific backend database */
if ( be->bd_info->bi_nDB == 0 ) {
/* no database of this type, we never opened it */
return 0;
}
if ( be->bd_info->bi_db_close ) {
be->bd_info->bi_db_close( be );
}
if( be->bd_info->bi_close ) {
be->bd_info->bi_close( be->bd_info );
}
return 0;
}
/* close each backend database */
for( i = 0; i < nBackendDB; i++ ) {
if ( backendDB[i].bd_info->bi_db_close ) {
backendDB[i].bd_info->bi_db_close(
&backendDB[i] );
}
if(rc != 0) {
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_NOTICE,
"backend_shutdown: bi_close %s failed!\n",
backendDB[i].be_type ));
#else
Debug( LDAP_DEBUG_ANY,
"backend_close: bi_close %s failed!\n",
backendDB[i].be_type, 0, 0 );
#endif
}
}
/* close each backend type */
for( i = 0; i < nBackendInfo; i++ ) {
if( backendInfo[i].bi_nDB == 0 ) {
/* no database of this type */
continue;
}
if( backendInfo[i].bi_close ) {
backendInfo[i].bi_close(
&backendInfo[i] );
}
}
return 0;
}
int backend_destroy(void)
{
int i;
/* destroy each backend database */
for( i = 0; i < nBackendDB; i++ ) {
if ( backendDB[i].bd_info->bi_db_destroy ) {
backendDB[i].bd_info->bi_db_destroy(
&backendDB[i] );
}
charray_free( backendDB[i].be_suffix );
ber_bvecfree( backendDB[i].be_nsuffix );
free( backendDB[i].be_root_dn );
free( backendDB[i].be_root_ndn );
free( backendDB[i].be_root_pw.bv_val );
acl_destroy( backendDB[i].be_acl, global_acl );
}
free( backendDB );
/* destroy each backend type */
for( i = 0; i < nBackendInfo; i++ ) {
if( backendInfo[i].bi_destroy ) {
backendInfo[i].bi_destroy(
&backendInfo[i] );
}
}
#ifdef SLAPD_MODULES
if (backendInfo != binfo) {
free(backendInfo);
}
#endif /* SLAPD_MODULES */
nBackendInfo = 0;
backendInfo = NULL;
return 0;
}
BackendInfo* backend_info(const char *type)
{
int i;
/* search for the backend type */
for( i = 0; i < nBackendInfo; i++ ) {
if( strcasecmp(backendInfo[i].bi_type, type) == 0 ) {
return &backendInfo[i];
}
}
return NULL;
}
BackendDB *
backend_db_init(
const char *type
)
{
Backend *be;
BackendInfo *bi = backend_info(type);
int rc = 0;
if( bi == NULL ) {
fprintf( stderr, "Unrecognized database type (%s)\n", type );
return NULL;
}
backendDB = (BackendDB *) ch_realloc(
(char *) backendDB,
(nBackendDB + 1) * sizeof(Backend) );
memset( &backendDB[nbackends], '\0', sizeof(Backend) );
be = &backends[nbackends++];
be->bd_info = bi;
be->be_def_limit = deflimit;
be->be_dfltaccess = global_default_access;
be->be_restrictops = global_restrictops;
be->be_requires = global_requires;
/* assign a default depth limit for alias deref */
be->be_max_deref_depth = SLAPD_DEFAULT_MAXDEREFDEPTH;
if(bi->bi_db_init) {
rc = bi->bi_db_init( be );
}
if(rc != 0) {
fprintf( stderr, "database init failed (%s)\n", type );
nbackends--;
return NULL;
}
bi->bi_nDB++;
return( be );
}
void
be_db_close( void )
{
int i;
for ( i = 0; i < nbackends; i++ ) {
if ( backends[i].bd_info->bi_db_close ) {
(*backends[i].bd_info->bi_db_close)( &backends[i] );
}
}
}
Backend *
select_backend(
const char * dn,
int manageDSAit,
int noSubs )
{
int i, j, len, dnlen;
Backend *be = NULL;
dnlen = strlen( dn );
for ( i = 0; i < nbackends; i++ ) {
for ( j = 0; backends[i].be_nsuffix != NULL &&
backends[i].be_nsuffix[j] != NULL; j++ )
{
if ((backends[i].be_glueflags&SLAP_GLUE_SUBORDINATE)&&
noSubs)
continue;
len = backends[i].be_nsuffix[j]->bv_len;
if ( len > dnlen ) {
/* suffix is longer than DN */
continue;
}
if ( len && len < dnlen && ( !DN_SEPARATOR( dn[(dnlen-len)-1] ) || DN_ESCAPE( dn[(dnlen-len)-2] ) ) ) {
/* make sure we have a separator */
continue;
}
if ( strcmp( backends[i].be_nsuffix[j]->bv_val, &dn[dnlen-len] ) == 0 ) {
if( be == NULL ) {
be = &backends[i];
if( manageDSAit && len == dnlen ) {
continue;
}
} else {
be = &backends[i];
}
return be;
}
}
}
return be;
}
int
be_issuffix(
Backend *be,
const char *suffix
)
{
int i;
size_t len = strlen(suffix);
for ( i = 0; be->be_nsuffix != NULL && be->be_nsuffix[i] != NULL; i++ ) {
if ( len != be->be_nsuffix[i]->bv_len ) {
continue;
}
if ( strcmp( be->be_nsuffix[i]->bv_val, suffix ) == 0 ) {
return( 1 );
}
}
return( 0 );
}
int
be_isroot( Backend *be, const char *ndn )
{
int rc;
if ( ndn == NULL || *ndn == '\0' ) {
return( 0 );
}
if ( be->be_root_ndn == NULL || *be->be_root_ndn == '\0' ) {
return( 0 );
}
rc = strcmp( be->be_root_ndn, ndn ) ? 0 : 1;
return(rc);
}
int
be_isupdate( Backend *be, const char *ndn )
{
int rc;
if ( ndn == NULL || *ndn == '\0' ) {
return( 0 );
}
if ( be->be_update_ndn == NULL || *be->be_update_ndn == '\0' ) {
return( 0 );
}
rc = strcmp( be->be_update_ndn, ndn ) ? 0 : 1;
return(rc);
}
char *
be_root_dn( Backend *be )
{
if ( be->be_root_dn == NULL ) {
return( "" );
}
return be->be_root_dn;
}
int
be_isroot_pw( Backend *be,
Connection *conn,
const char *ndn,
struct berval *cred )
{
int result;
if ( ! be_isroot( be, ndn ) ) {
return 0;
}
if( be->be_root_pw.bv_len == 0 ) {
return 0;
}
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
ldap_pvt_thread_mutex_lock( &passwd_mutex );
#ifdef SLAPD_SPASSWD
lutil_passwd_sasl_conn = conn->c_sasl_context;
#endif
#endif
result = lutil_passwd( &be->be_root_pw, cred, NULL );
#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
#ifdef SLAPD_SPASSWD
lutil_passwd_sasl_conn = NULL;
#endif
ldap_pvt_thread_mutex_unlock( &passwd_mutex );
#endif
return result == 0;
}
int
be_entry_release_rw(
BackendDB *be,
Connection *conn,
Operation *op,
Entry *e,
int rw )
{
if ( be->be_release ) {
/* free and release entry from backend */
return be->be_release( be, conn, op, e, rw );
} else {
/* free entry */
entry_free( e );
return 0;
}
}
int
backend_unbind(
Connection *conn,
Operation *op
)
{
int i;
for ( i = 0; i < nbackends; i++ ) {
if ( backends[i].be_unbind ) {
(*backends[i].be_unbind)( &backends[i], conn, op );
}
}
return 0;
}
int
backend_connection_init(
Connection *conn
)
{
int i;
for ( i = 0; i < nbackends; i++ ) {
if ( backends[i].be_connection_init ) {
(*backends[i].be_connection_init)( &backends[i], conn);
}
}
return 0;
}
int
backend_connection_destroy(
Connection *conn
)
{
int i;
for ( i = 0; i < nbackends; i++ ) {
if ( backends[i].be_connection_destroy ) {
(*backends[i].be_connection_destroy)( &backends[i], conn);
}
}
return 0;
}
static int
backend_check_controls(
Backend *be,
Connection *conn,
Operation *op,
const char **text )
{
LDAPControl **ctrls;
ctrls = op->o_ctrls;
if( ctrls == NULL ) {
return LDAP_SUCCESS;
}
for( ; *ctrls != NULL ; ctrls++ ) {
if( (*ctrls)->ldctl_iscritical &&
!charray_inlist( be->be_controls, (*ctrls)->ldctl_oid ) )
{
*text = "control unavailable in NamingContext";
return LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
}
}
return LDAP_SUCCESS;
}
int
backend_check_restrictions(
Backend *be,
Connection *conn,
Operation *op,
const void *opdata,
const char **text )
{
int rc;
slap_mask_t restrictops;
slap_mask_t requires;
slap_mask_t opflag;
slap_ssf_set_t *ssf;
int updateop = 0;
if( be ) {
rc = backend_check_controls( be, conn, op, text );
if( rc != LDAP_SUCCESS ) {
return rc;
}
restrictops = be->be_restrictops;
requires = be->be_requires;
ssf = &be->be_ssf_set;
} else {
restrictops = global_restrictops;
requires = global_requires;
ssf = &global_ssf_set;
}
switch( op->o_tag ) {
case LDAP_REQ_ADD:
opflag = SLAP_RESTRICT_OP_ADD;
updateop++;
break;
case LDAP_REQ_BIND:
opflag = SLAP_RESTRICT_OP_BIND;
break;
case LDAP_REQ_COMPARE:
opflag = SLAP_RESTRICT_OP_COMPARE;
break;
case LDAP_REQ_DELETE:
updateop++;
opflag = SLAP_RESTRICT_OP_DELETE;
break;
case LDAP_REQ_EXTENDED:
opflag = SLAP_RESTRICT_OP_EXTENDED;
break;
case LDAP_REQ_MODIFY:
updateop++;
opflag = SLAP_RESTRICT_OP_MODIFY;
break;
case LDAP_REQ_RENAME:
updateop++;
opflag = SLAP_RESTRICT_OP_RENAME;
break;
case LDAP_REQ_SEARCH:
opflag = SLAP_RESTRICT_OP_SEARCH;
break;
case LDAP_REQ_UNBIND:
opflag = 0;
break;
default:
*text = "restrict operations internal error";
return LDAP_OTHER;
}
if ( op->o_tag != LDAP_REQ_EXTENDED
|| strcmp( (const char *) opdata, LDAP_EXOP_START_TLS ) )
{
/* these checks don't apply to StartTLS */
if( op->o_tag == LDAP_REQ_EXTENDED ) {
/* threat other extended operations as update ops */
updateop++;
}
if( op->o_transport_ssf < ssf->sss_transport ) {
*text = "transport confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_tls_ssf < ssf->sss_tls ) {
*text = "TLS confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_tag != LDAP_REQ_BIND || opdata == NULL ) {
/* these checks don't apply to SASL bind */
if( op->o_sasl_ssf < ssf->sss_sasl ) {
*text = "SASL confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_ssf < ssf->sss_ssf ) {
*text = "confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
}
if( updateop ) {
if( op->o_transport_ssf < ssf->sss_update_transport ) {
*text = "transport update confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_tls_ssf < ssf->sss_update_tls ) {
*text = "TLS update confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_sasl_ssf < ssf->sss_update_sasl ) {
*text = "SASL update confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_ssf < ssf->sss_update_ssf ) {
*text = "update confidentiality required";
return LDAP_CONFIDENTIALITY_REQUIRED;
}
if( op->o_ndn == NULL ) {
*text = "modifications require authentication";
return LDAP_OPERATIONS_ERROR;
}
}
}
if ( op->o_tag != LDAP_REQ_BIND && ( op->o_tag != LDAP_REQ_EXTENDED ||
strcmp( (const char *) opdata, LDAP_EXOP_START_TLS ) ) )
{
/* these checks don't apply to Bind or StartTLS */
if( requires & SLAP_REQUIRE_STRONG ) {
/* should check mechanism */
if( op->o_authmech == NULL ||
op->o_dn == NULL || *op->o_dn == '\0' )
{
*text = "strong authentication required";
return LDAP_STRONG_AUTH_REQUIRED;
}
}
if( requires & SLAP_REQUIRE_SASL ) {
if( op->o_authmech == NULL ||
op->o_dn == NULL || *op->o_dn == '\0' )
{
*text = "SASL authentication required";
return LDAP_STRONG_AUTH_REQUIRED;
}
}
if( requires & SLAP_REQUIRE_AUTHC ) {
if( op->o_dn == NULL || *op->o_dn == '\0' ) {
*text = "authentication required";
return LDAP_UNWILLING_TO_PERFORM;
}
}
if( requires & SLAP_REQUIRE_BIND ) {
int version;
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
version = conn->c_protocol;
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
if( !version ) {
/* no bind has occurred */
*text = "BIND required";
return LDAP_OPERATIONS_ERROR;
}
}
if( requires & SLAP_REQUIRE_LDAP_V3 ) {
if( op->o_protocol < LDAP_VERSION3 ) {
/* no bind has occurred */
*text = "operation restricted to LDAPv3 clients";
return LDAP_OPERATIONS_ERROR;
}
}
}
if( restrictops & opflag ) {
if( restrictops == SLAP_RESTRICT_OP_READS ) {
*text = "read operations restricted";
} else {
*text = "operation restricted";
}
return LDAP_UNWILLING_TO_PERFORM;
}
return LDAP_SUCCESS;
}
int backend_check_referrals(
Backend *be,
Connection *conn,
Operation *op,
const char *dn,
const char *ndn )
{
int rc = LDAP_SUCCESS;
if( be->be_chk_referrals ) {
const char *text;
rc = be->be_chk_referrals( be,
conn, op, dn, ndn, &text );
if( rc != LDAP_SUCCESS && rc != LDAP_REFERRAL ) {
send_ldap_result( conn, op, rc,
NULL, text, NULL, NULL );
}
}
return rc;
}
int
backend_group(
Backend *be,
Connection *conn,
Operation *op,
Entry *target,
const char *gr_ndn,
const char *op_ndn,
ObjectClass *group_oc,
AttributeDescription *group_at
)
{
GroupAssertion *g;
int len = strlen(gr_ndn);
int i;
ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
i = op->o_abandon;
ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
if (i)
return SLAPD_ABANDON;
if( strcmp( target->e_ndn, gr_ndn ) != 0 ) {
/* we won't attempt to send it to a different backend */
be = select_backend(gr_ndn, 0,
(be->be_glueflags & SLAP_GLUE_INSTANCE));
if (be == NULL) {
return LDAP_NO_SUCH_OBJECT;
}
}
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
for (g = conn->c_groups; g; g=g->next) {
if (g->be != be || g->oc != group_oc || g->at != group_at ||
g->len != len)
continue;
if (strcmp( g->ndn, gr_ndn ) == 0)
break;
}
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
if (g)
return g->res;
if( be->be_group ) {
int res = be->be_group( be, conn, op,
target, gr_ndn, op_ndn,
group_oc, group_at );
if (op->o_tag != LDAP_REQ_BIND) {
g = ch_malloc(sizeof(GroupAssertion) + len);
g->be = be;
g->oc = group_oc;
g->at = group_at;
g->res = res;
g->len = len;
strcpy(g->ndn, gr_ndn);
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
g->next = conn->c_groups;
conn->c_groups = g;
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
}
return res;
}
return LDAP_UNWILLING_TO_PERFORM;
}
int
backend_attribute(
Backend *be,
Connection *conn,
Operation *op,
Entry *target,
const char *e_ndn,
AttributeDescription *entry_at,
struct berval ***vals
)
{
if( target == NULL || strcmp( target->e_ndn, e_ndn ) != 0 ) {
/* we won't attempt to send it to a different backend */
be = select_backend(e_ndn, 0,
(be->be_glueflags & SLAP_GLUE_INSTANCE));
if (be == NULL) {
return LDAP_NO_SUCH_OBJECT;
}
}
if( be->be_attribute ) {
return be->be_attribute( be, conn, op, target, e_ndn,
entry_at, vals );
}
return LDAP_UNWILLING_TO_PERFORM;
}
Attribute *backend_operational(
Backend *be,
Connection *conn,
Operation *op,
Entry *e,
char **attrs,
int opattrs )
{
Attribute *a = NULL, **ap = &a;
#ifdef SLAPD_SCHEMA_DN
a = ch_malloc( sizeof( Attribute ) );
a->a_desc = slap_schema.si_ad_subschemaSubentry;
/* Should be backend specific */
a->a_vals = ch_malloc( 2 * sizeof( struct berval * ) );
a->a_vals[0] = ber_bvstrdup( SLAPD_SCHEMA_DN );
a->a_vals[1] = NULL;
a->a_next = NULL;
ap = &a->a_next;
#endif
/*
* If operational attributes (allegedly) are required,
* and the backend supports specific operational attributes,
* add them to the attribute list
*/
if ( ( opattrs || attrs ) && be->be_operational != NULL ) {
( void )be->be_operational( be, conn, op, e,
attrs, opattrs, ap );
}
return a;
}
Reference in New Issue View Git Blame Copy Permalink