/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* signals.h  Bus signal connection implementation
 *
 * Copyright (C) 2003  Red Hat, Inc.
 *
 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
 *
 * Licensed under the Academic Free License version 2.1
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifndef BUS_SIGNALS_H
#define BUS_SIGNALS_H

#include <dbus/dbus.h>
#include <dbus/dbus-string.h>
#include <dbus/dbus-sysdeps.h>
#include "connection.h"

typedef enum
{
  BUS_MATCH_MESSAGE_TYPE            = 1 << 0,
  BUS_MATCH_INTERFACE               = 1 << 1,
  BUS_MATCH_MEMBER                  = 1 << 2,
  BUS_MATCH_SENDER                  = 1 << 3,
  BUS_MATCH_DESTINATION             = 1 << 4,
  BUS_MATCH_PATH                    = 1 << 5,
  BUS_MATCH_ARGS                    = 1 << 6,
  BUS_MATCH_PATH_NAMESPACE          = 1 << 7,
  BUS_MATCH_CLIENT_IS_EAVESDROPPING = 1 << 8
} BusMatchFlags;

BusMatchRule* bus_match_rule_new   (DBusConnection *matches_go_to);
BusMatchRule* bus_match_rule_ref   (BusMatchRule   *rule);
void          bus_match_rule_unref (BusMatchRule   *rule);

dbus_bool_t bus_match_rule_set_message_type (BusMatchRule     *rule,
                                             int               type);
dbus_bool_t bus_match_rule_set_interface    (BusMatchRule     *rule,
                                             const char       *interface);
dbus_bool_t bus_match_rule_set_member       (BusMatchRule     *rule,
                                             const char       *member);
dbus_bool_t bus_match_rule_set_sender       (BusMatchRule     *rule,
                                             const char       *sender);
dbus_bool_t bus_match_rule_set_destination  (BusMatchRule     *rule,
                                             const char       *destination);
dbus_bool_t bus_match_rule_set_path         (BusMatchRule     *rule,
                                             const char       *path,
                                             dbus_bool_t       is_namespace);
dbus_bool_t bus_match_rule_set_arg          (BusMatchRule     *rule,
                                             int               arg,
                                             const DBusString *value,
                                             dbus_bool_t       is_path,
                                             dbus_bool_t       is_namespace);

/* Calling this methods a client declares that it is creating a rule which
 * needs to eavesdrop (e.g., dbus-monitor), any other created rules not
 * setting themselves as eavesdropping won't receive any message not addressed
 * to them, when eavedrop is enabled in the policy.  On the other hand, when
 * eavedrop is not enabled in policy, this method won't have any effect */
void bus_match_rule_set_client_is_eavesdropping (BusMatchRule     *rule,
                                                 dbus_bool_t is_eavesdropping);

dbus_bool_t bus_match_rule_get_client_is_eavesdropping (BusMatchRule *rule);

BusMatchRule* bus_match_rule_parse (DBusConnection   *matches_go_to,
                                    const DBusString *rule_text,
                                    DBusError        *error);

#ifdef DBUS_ENABLE_STATS
dbus_bool_t bus_match_rule_dump (BusMatchmaker *matchmaker,
                                 DBusConnection *conn_filter,
                                 DBusMessageIter *arr_iter);
#endif

BusMatchmaker* bus_matchmaker_new   (void);
BusMatchmaker* bus_matchmaker_ref   (BusMatchmaker *matchmaker);
void           bus_matchmaker_unref (BusMatchmaker *matchmaker);

dbus_bool_t bus_matchmaker_add_rule             (BusMatchmaker   *matchmaker,
                                                 BusMatchRule    *rule);
void        bus_matchmaker_remove_rule          (BusMatchmaker   *matchmaker,
                                                 BusMatchRule    *rule);
void        bus_matchmaker_disconnected         (BusMatchmaker   *matchmaker,
                                                 DBusConnection  *connection);
dbus_bool_t bus_matchmaker_get_recipients       (BusMatchmaker   *matchmaker,
                                                 BusConnections  *connections,
                                                 DBusConnection  *sender,
                                                 DBusConnection  *addressed_recipient,
                                                 DBusMessage     *message,
                                                 DBusList       **recipients_p);

DBusList *bus_matchmaker_prepare_remove_rule_by_value (BusMatchmaker   *matchmaker,
                                                       BusMatchRule    *value,
                                                       DBusError       *error);
void      bus_matchmaker_commit_remove_rule_by_value  (BusMatchmaker   *matchmaker,
                                                       BusMatchRule    *value,
                                                       DBusList        *link);

#endif /* BUS_SIGNALS_H */