openldap/servers/slapd/back-wt/add.c
Quanah Gibson-Mount 59e9ff6243 Happy New Year
2018-03-22 15:35:24 +00:00

409 lines
10 KiB
C

/* OpenLDAP WiredTiger backend */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2002-2018 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 developed by HAMANO Tsukasa <hamano@osstech.co.jp>
* based on back-bdb for inclusion in OpenLDAP Software.
* WiredTiger is a product of MongoDB Inc.
*/
#include "portable.h"
#include <stdio.h>
#include "back-wt.h"
#include "config.h"
int
wt_add( Operation *op, SlapReply *rs )
{
struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
struct berval pdn;
char textbuf[SLAP_TEXT_BUFLEN];
size_t textlen = sizeof textbuf;
AttributeDescription *children = slap_schema.si_ad_children;
AttributeDescription *entry = slap_schema.si_ad_entry;
ID eid;
int num_retries = 0;
int success;
LDAPControl **postread_ctrl = NULL;
LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
int num_ctrls = 0;
wt_ctx *wc;
Entry *e = NULL;
Entry *p = NULL;
ID pid;
int rc;
Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(wt_add) ": %s\n",
op->ora_e->e_name.bv_val, 0, 0);
ctrls[num_ctrls] = 0;
/* check entry's schema */
rs->sr_err = entry_schema_check(
op, op->ora_e, NULL,
get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add)
": entry failed schema check: %s (%d)\n",
rs->sr_text, rs->sr_err, 0 );
goto return_results;
}
/* add opattrs to shadow as well, only missing attrs will actually
* be added; helps compatibility with older OL versions */
rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add)
": entry failed op attrs add: %s (%d)\n",
rs->sr_text, rs->sr_err, 0 );
goto return_results;
}
if ( get_assert( op ) &&
( test_filter( op, op->ora_e, get_assertion( op ))
!= LDAP_COMPARE_TRUE ))
{
rs->sr_err = LDAP_ASSERTION_FAILED;
goto return_results;
}
/* Not used
* subentry = is_entry_subentry( op->ora_e );
*/
/*
* Get the parent dn and see if the corresponding entry exists.
*/
if ( be_issuffix( op->o_bd, &op->ora_e->e_nname ) ) {
pdn = slap_empty_bv;
} else {
dnParent( &op->ora_e->e_nname, &pdn );
}
wc = wt_ctx_get(op, wi);
if( !wc ){
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(wt_add)
": wt_ctx_get failed\n",
0, 0, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
send_ldap_result( op, rs );
return rs->sr_err;
}
rc = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
switch( rc ) {
case 0:
rs->sr_err = LDAP_ALREADY_EXISTS;
goto return_results;
break;
case WT_NOTFOUND:
break;
default:
/* TODO: retry handling */
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(wt_add)
": error at wt_dn2entry() rc=%d\n",
rc, 0, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
/* get parent entry */
rc = wt_dn2pentry(op->o_bd, wc, &op->o_req_ndn, &p);
switch( rc ){
case 0:
case WT_NOTFOUND:
break;
default:
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(wt_add)
": error at wt_dn2pentry() rc=%d\n",
rc, 0, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "internal error";
goto return_results;
}
if ( !p )
p = (Entry *)&slap_entry_root;
if ( !bvmatch( &pdn, &p->e_nname ) ) {
rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
op->o_tmpmemctx );
if ( p != (Entry *)&slap_entry_root ) {
rs->sr_ref = is_entry_referral( p )
? get_entry_referrals( op, p )
: NULL;
wt_entry_return( p );
} else {
rs->sr_ref = NULL;
}
p = NULL;
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": parent "
"does not exist\n", 0, 0, 0 );
rs->sr_err = LDAP_REFERRAL;
rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
goto return_results;
}
rs->sr_err = access_allowed( op, p,
children, NULL, ACL_WADD, NULL );
if ( ! rs->sr_err ) {
/*
if ( p != (Entry *)&slap_entry_root )
wt_entry_return( op, p );
*/
p = NULL;
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": no write access to parent\n",
0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to parent";
goto return_results;;
}
if ( p != (Entry *)&slap_entry_root ) {
if ( is_entry_subentry( p ) ) {
wt_entry_return( p );
p = NULL;
/* parent is a subentry, don't allow add */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": parent is subentry\n",
0, 0, 0 );
rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
rs->sr_text = "parent is a subentry";
goto return_results;;
}
if ( is_entry_alias( p ) ) {
wt_entry_return( p );
p = NULL;
/* parent is an alias, don't allow add */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": parent is alias\n",
0, 0, 0 );
rs->sr_err = LDAP_ALIAS_PROBLEM;
rs->sr_text = "parent is an alias";
goto return_results;;
}
if ( is_entry_referral( p ) ) {
BerVarray ref = get_entry_referrals( op, p );
/* parent is a referral, don't allow add */
rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
op->o_tmpmemctx );
rs->sr_ref = referral_rewrite( ref, &p->e_name,
&op->o_req_dn, LDAP_SCOPE_DEFAULT );
ber_bvarray_free( ref );
wt_entry_return( p );
p = NULL;
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": parent is referral\n",
0, 0, 0 );
rs->sr_err = LDAP_REFERRAL;
rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
goto return_results;
}
}
#if 0
if ( subentry ) {
/* FIXME: */
/* parent must be an administrative point of the required kind */
}
#endif
/* free parent */
if ( p != (Entry *)&slap_entry_root ) {
pid = p->e_id;
if ( p->e_nname.bv_len ) {
struct berval ppdn;
/* ITS#5326: use parent's DN if differs from provided one */
dnParent( &op->ora_e->e_name, &ppdn );
if ( !dn_match( &p->e_name, &ppdn ) ) {
struct berval rdn;
struct berval newdn;
dnRdn( &op->ora_e->e_name, &rdn );
build_new_dn( &newdn, &p->e_name, &rdn, NULL );
if ( op->ora_e->e_name.bv_val != op->o_req_dn.bv_val )
ber_memfree( op->ora_e->e_name.bv_val );
op->ora_e->e_name = newdn;
/* FIXME: should check whether
* dnNormalize(newdn) == e->e_nname ... */
}
}
wt_entry_return( p );
}
p = NULL;
rs->sr_err = access_allowed( op, op->ora_e,
entry, NULL, ACL_WADD, NULL );
if ( ! rs->sr_err ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": no write access to entry\n",
0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to entry";
goto return_results;
}
/*
* Check ACL for attribute write access
*/
if (!acl_check_modlist(op, op->ora_e, op->ora_modlist)) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": no write access to attribute\n",
0, 0, 0 );
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
rs->sr_text = "no write access to attribute";
goto return_results;
}
rc = wc->session->begin_transaction(wc->session, NULL);
if( rc ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": begin_transaction failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "begin_transaction failed";
goto return_results;
}
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(wt_add) ": session id: %p\n",
wc->session, 0, 0 );
wt_next_id( op->o_bd, &eid );
op->ora_e->e_id = eid;
rc = wt_dn2id_add( op, wc->session, pid, op->ora_e );
if( rc ){
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add)
": dn2id_add failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
switch( rc ) {
case WT_DUPLICATE_KEY:
rs->sr_err = LDAP_ALREADY_EXISTS;
break;
default:
rs->sr_err = LDAP_OTHER;
}
wc->session->rollback_transaction(wc->session, NULL);
goto return_results;
}
rc = wt_id2entry_add( op, wc->session, op->ora_e );
if ( rc ) {
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add)
": id2entry_add failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
if ( rc == LDAP_ADMINLIMIT_EXCEEDED ) {
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
rs->sr_text = "entry is too big";
} else {
rs->sr_err = LDAP_OTHER;
rs->sr_text = "entry store failed";
}
wc->session->rollback_transaction(wc->session, NULL);
goto return_results;
}
/* add indices */
rc = wt_index_entry_add( op, wc, op->ora_e );
if ( rc ) {
Debug(LDAP_DEBUG_TRACE,
"<== " LDAP_XSTRING(wt_add)
": index add failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "index add failed";
wc->session->rollback_transaction(wc->session, NULL);
goto return_results;
}
rc = wc->session->commit_transaction(wc->session, NULL);
if( rc ) {
Debug( LDAP_DEBUG_TRACE,
"<== " LDAP_XSTRING(wt_add)
": commit_transaction failed: %s (%d)\n",
wiredtiger_strerror(rc), rc, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "commit_transaction failed";
goto return_results;
}
rs->sr_err = LDAP_SUCCESS;
/* post-read */
if( op->o_postread ) {
if( postread_ctrl == NULL ) {
postread_ctrl = &ctrls[num_ctrls++];
ctrls[num_ctrls] = NULL;
}
if ( slap_read_controls( op, rs, op->ora_e,
&slap_post_read_bv, postread_ctrl ) )
{
Debug( LDAP_DEBUG_TRACE,
"<=- " LDAP_XSTRING(wt_add) ": post-read "
"failed!\n", 0, 0, 0 );
if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
/* FIXME: is it correct to abort
* operation if control fails? */
goto return_results;
}
}
}
Debug(LDAP_DEBUG_TRACE,
LDAP_XSTRING(wt_add) ": added%s id=%08lx dn=\"%s\"\n",
op->o_noop ? " (no-op)" : "",
op->ora_e->e_id, op->ora_e->e_dn );
return_results:
success = rs->sr_err;
send_ldap_result( op, rs );
slap_graduate_commit_csn( op );
if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
}
return rs->sr_err;
}
/*
* Local variables:
* indent-tabs-mode: t
* tab-width: 4
* c-basic-offset: 4
* End:
*/