/* $NetBSD: add.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $ */ /* add.c - ldap BerkeleyDB back-end add routine */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 2000-2019 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 * . */ #include __RCSID("$NetBSD: add.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $"); #include "portable.h" #include #include #include "back-bdb.h" int bdb_add(Operation *op, SlapReply *rs ) { struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private; struct berval pdn; Entry *p = NULL, *oe = op->ora_e; EntryInfo *ei; char textbuf[SLAP_TEXT_BUFLEN]; size_t textlen = sizeof textbuf; AttributeDescription *children = slap_schema.si_ad_children; AttributeDescription *entry = slap_schema.si_ad_entry; DB_TXN *ltid = NULL, *lt2; ID eid = NOID; struct bdb_op_info opinfo = {{{ 0 }}}; int subentry; DB_LOCK lock; int num_retries = 0; 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(bdb_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(bdb_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(bdb_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 ); if( 0 ) { retry: /* transaction retry */ if( p ) { /* free parent and reader lock */ if ( p != (Entry *)&slap_entry_root ) { bdb_unlocked_cache_return_entry_r( bdb, p ); } p = NULL; } rs->sr_err = TXN_ABORT( ltid ); ltid = NULL; LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next ); opinfo.boi_oe.oe_key = NULL; op->o_do_not_cache = opinfo.boi_acl_cache; if( rs->sr_err != 0 ) { rs->sr_err = LDAP_OTHER; rs->sr_text = "internal error"; goto return_results; } if ( op->o_abandon ) { rs->sr_err = SLAPD_ABANDON; goto return_results; } bdb_trans_backoff( ++num_retries ); } /* begin transaction */ rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id, bdb->bi_db_opflags ); rs->sr_text = NULL; if( rs->sr_err != 0 ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": txn_begin failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 ); rs->sr_err = LDAP_OTHER; rs->sr_text = "internal error"; goto return_results; } Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": txn1 id: %x\n", ltid->id(ltid), 0, 0 ); opinfo.boi_oe.oe_key = bdb; opinfo.boi_txn = ltid; opinfo.boi_err = 0; opinfo.boi_acl_cache = op->o_do_not_cache; LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next ); /* * 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 ); } /* get entry or parent */ rs->sr_err = bdb_dn2entry( op, ltid, &op->ora_e->e_nname, &ei, 1, &lock ); switch( rs->sr_err ) { case 0: rs->sr_err = LDAP_ALREADY_EXISTS; goto return_results; case DB_NOTFOUND: break; case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; 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; } p = ei->bei_e; 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 ); rs->sr_ref = is_entry_referral( p ) ? get_entry_referrals( op, p ) : NULL; if ( p != (Entry *)&slap_entry_root ) bdb_unlocked_cache_return_entry_r( bdb, p ); p = NULL; Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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 ) { switch( opinfo.boi_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; } if ( p != (Entry *)&slap_entry_root ) bdb_unlocked_cache_return_entry_r( bdb, p ); p = NULL; Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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 ) ) { bdb_unlocked_cache_return_entry_r( bdb, p ); p = NULL; /* parent is a subentry, don't allow add */ Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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 ) ) { bdb_unlocked_cache_return_entry_r( bdb, p ); p = NULL; /* parent is an alias, don't allow add */ Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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 ) ) { /* 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 = get_entry_referrals( op, p ); bdb_unlocked_cache_return_entry_r( bdb, p ); p = NULL; Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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 and reader lock */ if ( p != (Entry *)&slap_entry_root ) { 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 ... */ } } bdb_unlocked_cache_return_entry_r( bdb, p ); } p = NULL; rs->sr_err = access_allowed( op, op->ora_e, entry, NULL, ACL_WADD, NULL ); if ( ! rs->sr_err ) { switch( opinfo.boi_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; } Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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)) { switch( opinfo.boi_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; } Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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;; } if ( eid == NOID ) { rs->sr_err = bdb_next_id( op->o_bd, &eid ); if( rs->sr_err != 0 ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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; } /* nested transaction */ rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags ); rs->sr_text = NULL; if( rs->sr_err != 0 ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": txn_begin(2) failed: " "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 ); rs->sr_err = LDAP_OTHER; rs->sr_text = "internal error"; goto return_results; } Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": txn2 id: %x\n", lt2->id(lt2), 0, 0 ); /* dn2id index */ rs->sr_err = bdb_dn2id_add( op, lt2, ei, op->ora_e ); if ( rs->sr_err != 0 ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": dn2id_add failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 ); switch( rs->sr_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; case DB_KEYEXIST: rs->sr_err = LDAP_ALREADY_EXISTS; break; default: rs->sr_err = LDAP_OTHER; } goto return_results; } /* attribute indexes */ rs->sr_err = bdb_index_entry_add( op, lt2, op->ora_e ); if ( rs->sr_err != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": index_entry_add failed\n", 0, 0, 0 ); switch( rs->sr_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; default: rs->sr_err = LDAP_OTHER; } rs->sr_text = "index generation failed"; goto return_results; } /* id2entry index */ rs->sr_err = bdb_id2entry_add( op->o_bd, lt2, op->ora_e ); if ( rs->sr_err != 0 ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": id2entry_add failed\n", 0, 0, 0 ); switch( rs->sr_err ) { case DB_LOCK_DEADLOCK: case DB_LOCK_NOTGRANTED: goto retry; default: rs->sr_err = LDAP_OTHER; } rs->sr_text = "entry store failed"; goto return_results; } if ( TXN_COMMIT( lt2, 0 ) != 0 ) { rs->sr_err = LDAP_OTHER; rs->sr_text = "txn_commit(2) 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(bdb_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 ( op->o_noop ) { if (( rs->sr_err=TXN_ABORT( ltid )) != 0 ) { rs->sr_text = "txn_abort (no-op) failed"; } else { rs->sr_err = LDAP_X_NO_OPERATION; ltid = NULL; goto return_results; } } else { struct berval nrdn; /* pick the RDN if not suffix; otherwise pick the entire DN */ if (pdn.bv_len) { nrdn.bv_val = op->ora_e->e_nname.bv_val; nrdn.bv_len = pdn.bv_val - op->ora_e->e_nname.bv_val - 1; } else { nrdn = op->ora_e->e_nname; } bdb_cache_add( bdb, ei, op->ora_e, &nrdn, ltid, &lock ); if(( rs->sr_err=TXN_COMMIT( ltid, 0 )) != 0 ) { rs->sr_text = "txn_commit failed"; } else { rs->sr_err = LDAP_SUCCESS; } } ltid = NULL; LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next ); opinfo.boi_oe.oe_key = NULL; if ( rs->sr_err != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_add) ": %s : %s (%d)\n", rs->sr_text, db_strerror(rs->sr_err), rs->sr_err ); rs->sr_err = LDAP_OTHER; goto return_results; } Debug(LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_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( ltid != NULL ) { TXN_ABORT( ltid ); } if ( opinfo.boi_oe.oe_key ) { LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next ); } if( success == LDAP_SUCCESS ) { /* We own the entry now, and it can be purged at will * Check to make sure it's the same entry we entered with. * Possibly a callback may have mucked with it, although * in general callbacks should treat the entry as read-only. */ bdb_cache_deref( oe->e_private ); if ( op->ora_e == oe ) op->ora_e = NULL; if ( bdb->bi_txn_cp_kbyte ) { TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 ); } } 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; }