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-rw-r--r--servers/slapd/back-mdb/add.c465
1 files changed, 465 insertions, 0 deletions
diff --git a/servers/slapd/back-mdb/add.c b/servers/slapd/back-mdb/add.c
new file mode 100644
index 0000000..78232c3
--- /dev/null
+++ b/servers/slapd/back-mdb/add.c
@@ -0,0 +1,465 @@
+/* add.c - ldap mdb back-end add routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2021 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>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "back-mdb.h"
+
+int
+mdb_add(Operation *op, SlapReply *rs )
+{
+ struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
+ struct berval pdn;
+ Entry *p = NULL, *oe = op->ora_e;
+ char textbuf[SLAP_TEXT_BUFLEN];
+ size_t textlen = sizeof textbuf;
+ AttributeDescription *children = slap_schema.si_ad_children;
+ AttributeDescription *entry = slap_schema.si_ad_entry;
+ MDB_txn *txn = NULL;
+ MDB_cursor *mc = NULL;
+ MDB_cursor *mcd;
+ ID eid, pid = 0;
+ mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
+ int subentry;
+ int numads = mdb->mi_numads;
+
+ int success;
+
+ LDAPControl **postread_ctrl = NULL;
+ LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+ int num_ctrls = 0;
+
+#ifdef LDAP_X_TXN
+ int settle = 0;
+#endif
+
+ Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(mdb_add) ": %s\n",
+ op->ora_e->e_name.bv_val, 0, 0);
+
+#ifdef LDAP_X_TXN
+ if( op->o_txnSpec ) {
+ /* acquire connection lock */
+ ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+ if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
+ rs->sr_text = "invalid transaction identifier";
+ rs->sr_err = LDAP_X_TXN_ID_INVALID;
+ goto txnReturn;
+ } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
+ settle=1;
+ goto txnReturn;
+ }
+
+ if( op->o_conn->c_txn_backend == NULL ) {
+ op->o_conn->c_txn_backend = op->o_bd;
+
+ } else if( op->o_conn->c_txn_backend != op->o_bd ) {
+ rs->sr_text = "transaction cannot span multiple database contexts";
+ rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
+ goto txnReturn;
+ }
+
+ /* insert operation into transaction */
+
+ rs->sr_text = "transaction specified";
+ rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
+
+txnReturn:
+ /* release connection lock */
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+
+ if( !settle ) {
+ send_ldap_result( op, rs );
+ return rs->sr_err;
+ }
+ }
+#endif
+
+ 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(mdb_add) ": entry failed schema check: "
+ "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
+ goto return_results;
+ }
+
+ /* begin transaction */
+ rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
+ rs->sr_text = NULL;
+ if( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": txn_begin failed: %s (%d)\n",
+ mdb_strerror(rs->sr_err), rs->sr_err, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+ txn = moi->moi_txn;
+
+ /* 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(mdb_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;
+ }
+
+ 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 );
+ }
+
+ rs->sr_err = mdb_cursor_open( txn, mdb->mi_dn2id, &mcd );
+ if( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": mdb_cursor_open failed (%d)\n",
+ rs->sr_err, 0, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ /* get entry or parent */
+ rs->sr_err = mdb_dn2entry( op, txn, mcd, &op->ora_e->e_nname, &p, NULL, 1 );
+ switch( rs->sr_err ) {
+ case 0:
+ rs->sr_err = LDAP_ALREADY_EXISTS;
+ mdb_entry_return( op, p );
+ p = NULL;
+ goto return_results;
+ case MDB_NOTFOUND:
+ break;
+ case LDAP_BUSY:
+ rs->sr_text = "ldap server busy";
+ goto return_results;
+ default:
+ 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 && is_entry_referral( p )) {
+ BerVarray ref = get_entry_referrals( op, p );
+ rs->sr_ref = referral_rewrite( ref, &p->e_name,
+ &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+ ber_bvarray_free( ref );
+ } else {
+ rs->sr_ref = NULL;
+ }
+ if ( p != (Entry *)&slap_entry_root )
+ mdb_entry_return( op, p );
+ p = NULL;
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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 )
+ mdb_entry_return( op, p );
+ p = NULL;
+
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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 ) ) {
+ mdb_entry_return( op, p );
+ p = NULL;
+ /* parent is a subentry, don't allow add */
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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 ) ) {
+ mdb_entry_return( op, p );
+ p = NULL;
+ /* parent is an alias, don't allow add */
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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 );
+ mdb_entry_return( op, p );
+ p = NULL;
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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 ( subentry ) {
+ /* FIXME: */
+ /* parent must be an administrative point of the required kind */
+ }
+
+ /* 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 ... */
+ }
+ }
+
+ mdb_entry_return( op, 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(mdb_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, oe, op->ora_modlist)) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_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;;
+ }
+
+ rs->sr_err = mdb_cursor_open( txn, mdb->mi_id2entry, &mc );
+ if( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": mdb_cursor_open failed (%d)\n",
+ rs->sr_err, 0, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ rs->sr_err = mdb_next_id( op->o_bd, mc, &eid );
+ if( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": next_id failed (%d)\n",
+ rs->sr_err, 0, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+ op->ora_e->e_id = eid;
+
+ /* dn2id index */
+ rs->sr_err = mdb_dn2id_add( op, mcd, mcd, pid, 1, 1, op->ora_e );
+ mdb_cursor_close( mcd );
+ if ( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": dn2id_add failed: %s (%d)\n",
+ mdb_strerror(rs->sr_err), rs->sr_err, 0 );
+
+ switch( rs->sr_err ) {
+ case MDB_KEYEXIST:
+ rs->sr_err = LDAP_ALREADY_EXISTS;
+ break;
+ default:
+ rs->sr_err = LDAP_OTHER;
+ }
+ goto return_results;
+ }
+
+ /* attribute indexes */
+ rs->sr_err = mdb_index_entry_add( op, txn, op->ora_e );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": index_entry_add failed\n",
+ 0, 0, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "index generation failed";
+ goto return_results;
+ }
+
+ /* id2entry index */
+ rs->sr_err = mdb_id2entry_add( op, txn, mc, op->ora_e );
+ if ( rs->sr_err != 0 ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": id2entry_add failed\n",
+ 0, 0, 0 );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "entry store failed";
+ goto return_results;
+ }
+
+ /* 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(mdb_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;
+ }
+ }
+ }
+
+ if ( moi == &opinfo ) {
+ LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
+ opinfo.moi_oe.oe_key = NULL;
+ if ( op->o_noop ) {
+ mdb->mi_numads = numads;
+ mdb_txn_abort( txn );
+ rs->sr_err = LDAP_X_NO_OPERATION;
+ txn = NULL;
+ goto return_results;
+ }
+
+ rs->sr_err = mdb_txn_commit( txn );
+ txn = NULL;
+ if ( rs->sr_err != 0 ) {
+ mdb->mi_numads = numads;
+ rs->sr_text = "txn_commit failed";
+ Debug( LDAP_DEBUG_ANY,
+ LDAP_XSTRING(mdb_add) ": %s : %s (%d)\n",
+ rs->sr_text, mdb_strerror(rs->sr_err), rs->sr_err );
+ rs->sr_err = LDAP_OTHER;
+ goto return_results;
+ }
+ }
+
+ Debug(LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(mdb_add) ": added%s id=%08lx dn=\"%s\"\n",
+ op->o_noop ? " (no-op)" : "",
+ op->ora_e->e_id, op->ora_e->e_dn );
+
+ rs->sr_text = NULL;
+ if( num_ctrls ) rs->sr_ctrls = ctrls;
+
+return_results:
+ success = rs->sr_err;
+ send_ldap_result( op, rs );
+
+ if( moi == &opinfo ) {
+ if( txn != NULL ) {
+ mdb->mi_numads = numads;
+ mdb_txn_abort( txn );
+ }
+ if ( opinfo.moi_oe.oe_key ) {
+ LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
+ }
+ } else {
+ moi->moi_ref--;
+ }
+
+ if( success == LDAP_SUCCESS ) {
+#if 0
+ if ( mdb->bi_txn_cp_kbyte ) {
+ TXN_CHECKPOINT( mdb->bi_dbenv,
+ mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );
+ }
+#endif
+ }
+
+ 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;
+}