1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-transport-protected.h Used by subclasses of DBusTransport object (internal to D-Bus implementation)
4 * Copyright (C) 2002, 2004 Red Hat Inc.
6 * Licensed under the Academic Free License version 2.1
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef DBUS_TRANSPORT_PROTECTED_H
24 #define DBUS_TRANSPORT_PROTECTED_H
26 #include <dbus/dbus-internals.h>
27 #include <dbus/dbus-errors.h>
28 #include <dbus/dbus-transport.h>
29 #include <dbus/dbus-message-internal.h>
30 #include <dbus/dbus-authorization.h>
31 #include <dbus/dbus-auth.h>
32 #include <dbus/dbus-resources.h>
36 typedef struct DBusTransportVTable DBusTransportVTable;
39 * The virtual table that must be implemented to
40 * create a new kind of transport.
42 struct DBusTransportVTable
44 void (* finalize) (DBusTransport *transport);
45 /**< The finalize method must free the transport. */
47 dbus_bool_t (* handle_watch) (DBusTransport *transport,
50 /**< The handle_watch method handles reading/writing
51 * data as indicated by the flags.
54 void (* disconnect) (DBusTransport *transport);
55 /**< Disconnect this transport. */
57 dbus_bool_t (* connection_set) (DBusTransport *transport);
58 /**< Called when transport->connection has been filled in */
60 void (* do_iteration) (DBusTransport *transport,
62 int timeout_milliseconds);
63 /**< Called to do a single "iteration" (block on select/poll
64 * followed by reading or writing data).
67 void (* live_messages_changed) (DBusTransport *transport);
68 /**< Outstanding messages counter changed */
70 dbus_bool_t (* get_socket_fd) (DBusTransport *transport,
72 /**< Get socket file descriptor */
76 * Object representing a transport such as a socket.
77 * A transport can shuttle messages from point A to point B,
78 * and is the backend for a #DBusConnection.
83 int refcount; /**< Reference count. */
85 const DBusTransportVTable *vtable; /**< Virtual methods for this instance. */
87 DBusConnection *connection; /**< Connection owning this transport. */
89 DBusMessageLoader *loader; /**< Message-loading buffer. */
91 DBusAuth *auth; /**< Authentication conversation */
92 DBusAuthorization *authorization; /**< Authorization conversation */
94 DBusCredentials *credentials; /**< Credentials of other end read from the socket */
96 long max_live_messages_size; /**< Max total size of received messages. */
97 long max_live_messages_unix_fds; /**< Max total unix fds of received messages. */
99 DBusCounter *live_messages; /**< Counter for size/unix fds of all live messages. */
101 char *address; /**< Address of the server we are connecting to (#NULL for the server side of a transport) */
103 char *expected_guid; /**< GUID we expect the server to have, #NULL on server side or if we don't have an expectation */
105 unsigned int disconnected : 1; /**< #TRUE if we are disconnected. */
106 unsigned int authenticated : 1; /**< Cache of auth state; use _dbus_transport_peek_is_authenticated() to query value */
107 unsigned int send_credentials_pending : 1; /**< #TRUE if we need to send credentials */
108 unsigned int receive_credentials_pending : 1; /**< #TRUE if we need to receive credentials */
109 unsigned int is_server : 1; /**< #TRUE if on the server side */
110 unsigned int unused_bytes_recovered : 1; /**< #TRUE if we've recovered unused bytes from auth */
113 dbus_bool_t _dbus_transport_init_base (DBusTransport *transport,
114 const DBusTransportVTable *vtable,
115 const DBusString *server_guid,
116 const DBusString *address);
117 void _dbus_transport_finalize_base (DBusTransport *transport);
122 DBUS_TRANSPORT_OPEN_NOT_HANDLED, /**< we aren't in charge of this address type */
123 DBUS_TRANSPORT_OPEN_OK, /**< we set up the listen */
124 DBUS_TRANSPORT_OPEN_BAD_ADDRESS, /**< malformed address */
125 DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT /**< well-formed address but failed to set it up */
126 } DBusTransportOpenResult;
128 DBusTransportOpenResult _dbus_transport_open_platform_specific (DBusAddressEntry *entry,
129 DBusTransport **transport_p,
132 #define DBUS_TRANSPORT_CAN_SEND_UNIX_FD(x) \
133 _dbus_auth_get_unix_fd_negotiated((x)->auth)
137 #endif /* DBUS_TRANSPORT_PROTECTED_H */