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/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-transport-protected.h Used by subclasses of DBusTransport object (internal to D-Bus implementation)
*
* Copyright (C) 2002, 2004 Red Hat Inc.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef DBUS_TRANSPORT_PROTECTED_H
#define DBUS_TRANSPORT_PROTECTED_H
#include <dbus/dbus-internals.h>
#include <dbus/dbus-errors.h>
#include <dbus/dbus-transport.h>
#include <dbus/dbus-message-internal.h>
#include <dbus/dbus-auth.h>
#include <dbus/dbus-resources.h>
DBUS_BEGIN_DECLS
typedef struct DBusTransportVTable DBusTransportVTable;
/**
* The virtual table that must be implemented to
* create a new kind of transport.
*/
struct DBusTransportVTable
{
void (* finalize) (DBusTransport *transport);
/**< The finalize method must free the transport. */
dbus_bool_t (* handle_watch) (DBusTransport *transport,
DBusWatch *watch,
unsigned int flags);
/**< The handle_watch method handles reading/writing
* data as indicated by the flags.
*/
void (* disconnect) (DBusTransport *transport);
/**< Disconnect this transport. */
dbus_bool_t (* connection_set) (DBusTransport *transport);
/**< Called when transport->connection has been filled in */
void (* do_iteration) (DBusTransport *transport,
unsigned int flags,
int timeout_milliseconds);
/**< Called to do a single "iteration" (block on select/poll
* followed by reading or writing data).
*/
void (* live_messages_changed) (DBusTransport *transport);
/**< Outstanding messages counter changed */
dbus_bool_t (* get_socket_fd) (DBusTransport *transport,
int *fd_p);
/**< Get socket file descriptor */
};
/**
* Object representing a transport such as a socket.
* A transport can shuttle messages from point A to point B,
* and is the backend for a #DBusConnection.
*
*/
struct DBusTransport
{
int refcount; /**< Reference count. */
const DBusTransportVTable *vtable; /**< Virtual methods for this instance. */
DBusConnection *connection; /**< Connection owning this transport. */
DBusMessageLoader *loader; /**< Message-loading buffer. */
DBusAuth *auth; /**< Authentication conversation */
DBusCredentials *credentials; /**< Credentials of other end read from the socket */
long max_live_messages_size; /**< Max total size of received messages. */
DBusCounter *live_messages_size; /**< Counter for size of all live messages. */
char *address; /**< Address of the server we are connecting to (#NULL for the server side of a transport) */
char *expected_guid; /**< GUID we expect the server to have, #NULL on server side or if we don't have an expectation */
DBusAllowUnixUserFunction unix_user_function; /**< Function for checking whether a user is authorized. */
void *unix_user_data; /**< Data for unix_user_function */
DBusFreeFunction free_unix_user_data; /**< Function to free unix_user_data */
DBusAllowWindowsUserFunction windows_user_function; /**< Function for checking whether a user is authorized. */
void *windows_user_data; /**< Data for windows_user_function */
DBusFreeFunction free_windows_user_data; /**< Function to free windows_user_data */
unsigned int disconnected : 1; /**< #TRUE if we are disconnected. */
unsigned int authenticated : 1; /**< Cache of auth state; use _dbus_transport_get_is_authenticated() to query value */
unsigned int send_credentials_pending : 1; /**< #TRUE if we need to send credentials */
unsigned int receive_credentials_pending : 1; /**< #TRUE if we need to receive credentials */
unsigned int is_server : 1; /**< #TRUE if on the server side */
unsigned int unused_bytes_recovered : 1; /**< #TRUE if we've recovered unused bytes from auth */
};
dbus_bool_t _dbus_transport_init_base (DBusTransport *transport,
const DBusTransportVTable *vtable,
const DBusString *server_guid,
const DBusString *address);
void _dbus_transport_finalize_base (DBusTransport *transport);
typedef enum
{
DBUS_TRANSPORT_OPEN_NOT_HANDLED, /**< we aren't in charge of this address type */
DBUS_TRANSPORT_OPEN_OK, /**< we set up the listen */
DBUS_TRANSPORT_OPEN_BAD_ADDRESS, /**< malformed address */
DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT /**< well-formed address but failed to set it up */
} DBusTransportOpenResult;
DBusTransportOpenResult _dbus_transport_open_platform_specific (DBusAddressEntry *entry,
DBusTransport **transport_p,
DBusError *error);
DBUS_END_DECLS
#endif /* DBUS_TRANSPORT_PROTECTED_H */
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