openldap/servers/slapd/back-ldbm/add.c
Kurt Zeilenga 0dbaf87730 Another round of changes behind -DSLAPD_SCHEMA_NOT_COMPAT
plus these changes unhidden changes:
	remove now meaning --enable-discreteaci configure option
	fix ITS#451, slapd filters
	Add ber_bvecadd() to support above
	constify ldap_pvt_find_wildcard() and misc slapd routines
	renamed some slap.h macros
	likely broken something
2000-02-14 20:57:34 +00:00

292 lines
6.3 KiB
C

/* add.c - ldap ldbm back-end add routine */
/* $OpenLDAP$ */
/*
* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include <ac/string.h>
#include "slap.h"
#include "back-ldbm.h"
#include "proto-back-ldbm.h"
int
ldbm_back_add(
Backend *be,
Connection *conn,
Operation *op,
Entry *e
)
{
struct ldbminfo *li = (struct ldbminfo *) be->be_private;
char *pdn;
Entry *p = NULL;
int rootlock = 0;
int rc;
#ifdef SLAPD_SCHEMA_NOT_COMPAT
static AttributeDescription *children = NULL;
#else
static const char *children = "children";
#endif
Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_add: %s\n", e->e_dn, 0, 0);
/* nobody else can add until we lock our parent */
ldap_pvt_thread_mutex_lock(&li->li_add_mutex);
if ( ( dn2id( be, e->e_ndn ) ) != NOID ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
entry_free( e );
send_ldap_result( conn, op, LDAP_ALREADY_EXISTS,
NULL, NULL, NULL, NULL );
return( -1 );
}
if ( schema_check_entry( e ) != 0 ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
Debug( LDAP_DEBUG_TRACE, "entry failed schema check\n",
0, 0, 0 );
entry_free( e );
send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION,
NULL, NULL, NULL, NULL );
return( -1 );
}
/*
* Get the parent dn and see if the corresponding entry exists.
* If the parent does not exist, only allow the "root" user to
* add the entry.
*/
pdn = dn_parent( be, e->e_ndn );
if( pdn != NULL && *pdn != '\0' ) {
Entry *matched = NULL;
assert( *pdn != '\0' );
/* get parent with writer lock */
if ( (p = dn2entry_w( be, pdn, &matched )) == NULL ) {
char *matched_dn;
struct berval **refs;
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
cache_return_entry_r( &li->li_cache, matched );
} else {
matched_dn = NULL;
refs = default_referral;
}
Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
0, 0, 0 );
send_ldap_result( conn, op, LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
if( matched != NULL ) {
ber_bvecfree( refs );
free( matched_dn );
}
entry_free( e );
free( pdn );
return -1;
}
/* don't need the add lock anymore */
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
free(pdn);
if ( ! access_allowed( be, conn, op, p,
children, NULL, ACL_WRITE ) )
{
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
NULL, NULL, NULL, NULL );
entry_free( e );
return -1;
}
if ( is_entry_alias( p ) ) {
/* parent is an alias, don't allow add */
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
Debug( LDAP_DEBUG_TRACE, "parent is alias\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_ALIAS_PROBLEM,
NULL, NULL, NULL, NULL );
entry_free( e );
return -1;
}
if ( is_entry_referral( p ) ) {
/* parent is a referral, don't allow add */
char *matched_dn = ch_strdup( p->e_dn );
struct berval **refs = is_entry_referral( p )
? get_entry_referrals( be, conn, op, p )
: NULL;
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
Debug( LDAP_DEBUG_TRACE, "parent is referral\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
ber_bvecfree( refs );
free( matched_dn );
entry_free( e );
return -1;
}
} else {
if(pdn != NULL) {
assert( *pdn == '\0' );
free(pdn);
}
/* no parent, must be adding entry to root */
if ( !be_isroot( be, op->o_ndn ) && !be_issuffix( be, "" ) ) {
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
Debug( LDAP_DEBUG_TRACE, "%s add denied\n",
pdn == NULL ? "suffix" : "entry at root",
0, 0 );
send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
NULL, NULL, NULL, NULL );
entry_free( e );
return -1;
}
/*
* no parent, acquire the root write lock
* and release the add lock.
*/
ldap_pvt_thread_mutex_lock(&li->li_root_mutex);
rootlock = 1;
ldap_pvt_thread_mutex_unlock(&li->li_add_mutex);
}
e->e_id = next_id( be );
/*
* Try to add the entry to the cache, assign it a new dnid.
*/
rc = cache_add_entry_rw(&li->li_cache, e, CACHE_WRITE_LOCK);
if ( rc != 0 ) {
if( p != NULL) {
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
}
if ( rootlock ) {
/* release root lock */
ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
}
Debug( LDAP_DEBUG_ANY, "cache_add_entry_lock failed\n", 0, 0,
0 );
/* free the entry */
entry_free( e );
send_ldap_result( conn, op,
rc > 0 ? LDAP_ALREADY_EXISTS : LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
return( -1 );
}
rc = -1;
/*
* Add the entry to the attribute indexes, then add it to
* the id2children index, dn2id index, and the id2entry index.
*/
/* attribute indexes */
if ( index_add_entry( be, e ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "index_add_entry failed\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
goto return_results;
}
/* dn2id index */
if ( dn2id_add( be, e->e_ndn, e->e_id ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "dn2id_add failed\n", 0,
0, 0 );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
goto return_results;
}
/* id2entry index */
if ( id2entry_add( be, e ) != 0 ) {
Debug( LDAP_DEBUG_TRACE, "id2entry_add failed\n", 0,
0, 0 );
(void) dn2id_delete( be, e->e_ndn, e->e_id );
send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
NULL, NULL, NULL, NULL );
goto return_results;
}
send_ldap_result( conn, op, LDAP_SUCCESS,
NULL, NULL, NULL, NULL );
rc = 0;
return_results:;
if (p != NULL) {
/* free parent and writer lock */
cache_return_entry_w( &li->li_cache, p );
}
if ( rootlock ) {
/* release root lock */
ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
}
if ( rc ) {
/* free entry and writer lock */
cache_return_entry_w( &li->li_cache, e );
}
return( rc );
}