diff options
Diffstat (limited to 'servers/slapd/back-wt/add.c')
| -rw-r--r-- | servers/slapd/back-wt/add.c | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/servers/slapd/back-wt/add.c b/servers/slapd/back-wt/add.c new file mode 100644 index 0000000..04c08a1 --- /dev/null +++ b/servers/slapd/back-wt/add.c @@ -0,0 +1,373 @@ +/* OpenLDAP WiredTiger backend */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2002-2022 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 "slap-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 = NOID; + 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 = NOID; + int rc; + + Debug( LDAP_DEBUG_ARGS, "==> wt_add: %s\n", op->ora_e->e_name.bv_val ); + + 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, + "wt_add: entry failed schema check: %s (%d)\n", + rs->sr_text, rs->sr_err ); + 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, + "wt_add: entry failed op attrs add: %s (%d)\n", + rs->sr_text, rs->sr_err ); + 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, "wt_add: wt_ctx_get failed\n" ); + 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, + "wt_add: error at wt_dn2entry() rc=%d\n", rc ); + 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, + "wt_add: error at wt_dn2pentry() rc=%d\n", rc ); + 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, "wt_add: parent does not exist\n" ); + 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, "wt_add: no write access to parent\n" ); + 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, "wt_add: parent is subentry\n" ); + 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, "wt_add: parent is alias\n" ); + 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, "wt_add: parent is referral\n" ); + + 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, "wt_add: no write access to entry\n" ); + 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, "wt_add: no write access to attribute\n" ); + rs->sr_err = LDAP_INSUFFICIENT_ACCESS; + rs->sr_text = "no write access to attribute"; + goto return_results; + } + + rc = wc->session->begin_transaction(wc->session, "isolation=read-uncommitted"); + if( rc ) { + Debug( LDAP_DEBUG_TRACE, "wt_add: begin_transaction failed: %s (%d)\n", + wiredtiger_strerror(rc), rc ); + rs->sr_err = LDAP_OTHER; + rs->sr_text = "begin_transaction failed"; + goto return_results; + } + Debug( LDAP_DEBUG_TRACE, "wt_add: session id: %p\n", wc->session ); + + wt_next_id( op->o_bd, &eid ); + op->ora_e->e_id = eid; + + rc = wt_dn2id_add( op, wc, pid, op->ora_e ); + if( rc ){ + Debug( LDAP_DEBUG_TRACE, + "wt_add: dn2id_add failed: %s (%d)\n", + wiredtiger_strerror(rc), rc ); + 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, op->ora_e ); + if ( rc ) { + Debug( LDAP_DEBUG_TRACE, + "wt_add: id2entry_add failed: %s (%d)\n", + wiredtiger_strerror(rc), rc ); + 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, + "<== wt_add: index add failed: %s (%d)\n", + wiredtiger_strerror(rc), rc ); + 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, + "<== wt_add: commit_transaction failed: %s (%d)\n", + wiredtiger_strerror(rc), rc ); + 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, "<=- wt_add: post-read failed!\n" ); + if ( op->o_postread & SLAP_CONTROL_CRITICAL ) { + /* FIXME: is it correct to abort + * operation if control fails? */ + goto return_results; + } + } + } + + Debug(LDAP_DEBUG_TRACE, + "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: + 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: + */ |