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/* -*- mode: C; c-file-style: "gnu" -*- */
/* dbus-protocol.h D-Bus protocol constants
*
* Copyright (C) 2002, 2003 CodeFactory AB
* Copyright (C) 2004, 2005 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_PROTOCOL_H
#define DBUS_PROTOCOL_H
/* Don't include anything in here from anywhere else. It's
* intended for use by any random library.
*/
#ifdef __cplusplus
extern "C" {
#endif
/* Message byte order */
#define DBUS_LITTLE_ENDIAN ('l') /* LSB first */
#define DBUS_BIG_ENDIAN ('B') /* MSB first */
/* Protocol version */
#define DBUS_MAJOR_PROTOCOL_VERSION 1
/* Never a legitimate type */
#define DBUS_TYPE_INVALID ((int) '\0')
#define DBUS_TYPE_INVALID_AS_STRING "\0"
/* Primitive types */
#define DBUS_TYPE_BYTE ((int) 'y')
#define DBUS_TYPE_BYTE_AS_STRING "y"
#define DBUS_TYPE_BOOLEAN ((int) 'b')
#define DBUS_TYPE_BOOLEAN_AS_STRING "b"
#define DBUS_TYPE_INT16 ((int) 'n')
#define DBUS_TYPE_INT16_AS_STRING "n"
#define DBUS_TYPE_UINT16 ((int) 'q')
#define DBUS_TYPE_UINT16_AS_STRING "q"
#define DBUS_TYPE_INT32 ((int) 'i')
#define DBUS_TYPE_INT32_AS_STRING "i"
#define DBUS_TYPE_UINT32 ((int) 'u')
#define DBUS_TYPE_UINT32_AS_STRING "u"
#define DBUS_TYPE_INT64 ((int) 'x')
#define DBUS_TYPE_INT64_AS_STRING "x"
#define DBUS_TYPE_UINT64 ((int) 't')
#define DBUS_TYPE_UINT64_AS_STRING "t"
#define DBUS_TYPE_DOUBLE ((int) 'd')
#define DBUS_TYPE_DOUBLE_AS_STRING "d"
#define DBUS_TYPE_STRING ((int) 's')
#define DBUS_TYPE_STRING_AS_STRING "s"
#define DBUS_TYPE_OBJECT_PATH ((int) 'o')
#define DBUS_TYPE_OBJECT_PATH_AS_STRING "o"
#define DBUS_TYPE_SIGNATURE ((int) 'g')
#define DBUS_TYPE_SIGNATURE_AS_STRING "g"
/* Compound types */
#define DBUS_TYPE_ARRAY ((int) 'a')
#define DBUS_TYPE_ARRAY_AS_STRING "a"
#define DBUS_TYPE_VARIANT ((int) 'v')
#define DBUS_TYPE_VARIANT_AS_STRING "v"
/* STRUCT and DICT_ENTRY are sort of special since their codes can't
* appear in a type string, instead
* DBUS_STRUCT_BEGIN_CHAR/DBUS_DICT_ENTRY_BEGIN_CHAR have to appear
*/
#define DBUS_TYPE_STRUCT ((int) 'r')
#define DBUS_TYPE_STRUCT_AS_STRING "r"
#define DBUS_TYPE_DICT_ENTRY ((int) 'e')
#define DBUS_TYPE_DICT_ENTRY_AS_STRING "e"
/* Does not count INVALID */
#define DBUS_NUMBER_OF_TYPES (16)
/* characters other than typecodes that appear in type signatures */
#define DBUS_STRUCT_BEGIN_CHAR ((int) '(')
#define DBUS_STRUCT_BEGIN_CHAR_AS_STRING "("
#define DBUS_STRUCT_END_CHAR ((int) ')')
#define DBUS_STRUCT_END_CHAR_AS_STRING ")"
#define DBUS_DICT_ENTRY_BEGIN_CHAR ((int) '{')
#define DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING "{"
#define DBUS_DICT_ENTRY_END_CHAR ((int) '}')
#define DBUS_DICT_ENTRY_END_CHAR_AS_STRING "}"
/* Max length in bytes of a bus name, interface, or member (not object
* path, paths are unlimited). This is limited because lots of stuff
* is O(n) in this number, plus it would be obnoxious to type in a
* paragraph-long method name so most likely something like that would
* be an exploit.
*/
#define DBUS_MAXIMUM_NAME_LENGTH 255
/* This one is 255 so it fits in a byte */
#define DBUS_MAXIMUM_SIGNATURE_LENGTH 255
/* Max length of a match rule string; to keep people from hosing the
* daemon with some huge rule
*/
#define DBUS_MAXIMUM_MATCH_RULE_LENGTH 1024
/* Max length of a marshaled array in bytes (64M, 2^26) We use signed
* int for lengths so must be INT_MAX or less. We need something a
* bit smaller than INT_MAX because the array is inside a message with
* header info, etc. so an INT_MAX array wouldn't allow the message
* overhead. The 64M number is an attempt at a larger number than
* we'd reasonably ever use, but small enough that your bus would chew
* through it fairly quickly without locking up forever. If you have
* data that's likely to be larger than this, you should probably be
* sending it in multiple incremental messages anyhow.
*/
#define DBUS_MAXIMUM_ARRAY_LENGTH (67108864)
/* Number of bits you need in an unsigned to store the max array size */
#define DBUS_MAXIMUM_ARRAY_LENGTH_BITS 26
/* The maximum total message size including header and body; similar
* rationale to max array size.
*/
#define DBUS_MAXIMUM_MESSAGE_LENGTH (DBUS_MAXIMUM_ARRAY_LENGTH * 2)
/* Number of bits you need in an unsigned to store the max message size */
#define DBUS_MAXIMUM_MESSAGE_LENGTH_BITS 27
/* Depth of recursion in the type tree. This is automatically limited
* to DBUS_MAXIMUM_SIGNATURE_LENGTH since you could only have an array
* of array of array of ... that fit in the max signature. But that's
* probably a bit too large.
*/
#define DBUS_MAXIMUM_TYPE_RECURSION_DEPTH 32
/* Types of message */
#define DBUS_MESSAGE_TYPE_INVALID 0
#define DBUS_MESSAGE_TYPE_METHOD_CALL 1
#define DBUS_MESSAGE_TYPE_METHOD_RETURN 2
#define DBUS_MESSAGE_TYPE_ERROR 3
#define DBUS_MESSAGE_TYPE_SIGNAL 4
/* Header flags */
#define DBUS_HEADER_FLAG_NO_REPLY_EXPECTED 0x1
#define DBUS_HEADER_FLAG_NO_AUTO_START 0x2
/* Header fields */
#define DBUS_HEADER_FIELD_INVALID 0
#define DBUS_HEADER_FIELD_PATH 1
#define DBUS_HEADER_FIELD_INTERFACE 2
#define DBUS_HEADER_FIELD_MEMBER 3
#define DBUS_HEADER_FIELD_ERROR_NAME 4
#define DBUS_HEADER_FIELD_REPLY_SERIAL 5
#define DBUS_HEADER_FIELD_DESTINATION 6
#define DBUS_HEADER_FIELD_SENDER 7
#define DBUS_HEADER_FIELD_SIGNATURE 8
#define DBUS_HEADER_FIELD_LAST DBUS_HEADER_FIELD_SIGNATURE
/* Header format is defined as a signature:
* byte byte order
* byte message type ID
* byte flags
* byte protocol version
* uint32 body length
* uint32 serial
* array of struct (byte,variant) (field name, value)
*
* The length of the header can be computed as the
* fixed size of the initial data, plus the length of
* the array at the end, plus padding to an 8-boundary.
*/
#define DBUS_HEADER_SIGNATURE \
DBUS_TYPE_BYTE_AS_STRING \
DBUS_TYPE_BYTE_AS_STRING \
DBUS_TYPE_BYTE_AS_STRING \
DBUS_TYPE_BYTE_AS_STRING \
DBUS_TYPE_UINT32_AS_STRING \
DBUS_TYPE_UINT32_AS_STRING \
DBUS_TYPE_ARRAY_AS_STRING \
DBUS_STRUCT_BEGIN_CHAR_AS_STRING \
DBUS_TYPE_BYTE_AS_STRING \
DBUS_TYPE_VARIANT_AS_STRING \
DBUS_STRUCT_END_CHAR_AS_STRING
/**
* The smallest header size that can occur. (It won't be valid due to
* missing required header fields.) This is 4 bytes, two uint32, an
* array length. This isn't any kind of resource limit, just the
* necessary/logical outcome of the header signature.
*/
#define DBUS_MINIMUM_HEADER_SIZE 16
/* Errors */
/* WARNING these get autoconverted to an enum in dbus-glib.h. Thus,
* if you change the order it breaks the ABI. Keep them in order.
* Also, don't change the formatting since that will break the sed
* script.
*/
#define DBUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed"
#define DBUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
#define DBUS_ERROR_SERVICE_UNKNOWN "org.freedesktop.DBus.Error.ServiceUnknown"
#define DBUS_ERROR_NAME_HAS_NO_OWNER "org.freedesktop.DBus.Error.NameHasNoOwner"
#define DBUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply"
#define DBUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError"
#define DBUS_ERROR_BAD_ADDRESS "org.freedesktop.DBus.Error.BadAddress"
#define DBUS_ERROR_NOT_SUPPORTED "org.freedesktop.DBus.Error.NotSupported"
#define DBUS_ERROR_LIMITS_EXCEEDED "org.freedesktop.DBus.Error.LimitsExceeded"
#define DBUS_ERROR_ACCESS_DENIED "org.freedesktop.DBus.Error.AccessDenied"
#define DBUS_ERROR_AUTH_FAILED "org.freedesktop.DBus.Error.AuthFailed"
#define DBUS_ERROR_NO_SERVER "org.freedesktop.DBus.Error.NoServer"
#define DBUS_ERROR_TIMEOUT "org.freedesktop.DBus.Error.Timeout"
#define DBUS_ERROR_NO_NETWORK "org.freedesktop.DBus.Error.NoNetwork"
#define DBUS_ERROR_ADDRESS_IN_USE "org.freedesktop.DBus.Error.AddressInUse"
#define DBUS_ERROR_DISCONNECTED "org.freedesktop.DBus.Error.Disconnected"
#define DBUS_ERROR_INVALID_ARGS "org.freedesktop.DBus.Error.InvalidArgs"
#define DBUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound"
#define DBUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod"
#define DBUS_ERROR_TIMED_OUT "org.freedesktop.DBus.Error.TimedOut"
#define DBUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound"
#define DBUS_ERROR_MATCH_RULE_INVALID "org.freedesktop.DBus.Error.MatchRuleInvalid"
#define DBUS_ERROR_SPAWN_EXEC_FAILED "org.freedesktop.DBus.Error.Spawn.ExecFailed"
#define DBUS_ERROR_SPAWN_FORK_FAILED "org.freedesktop.DBus.Error.Spawn.ForkFailed"
#define DBUS_ERROR_SPAWN_CHILD_EXITED "org.freedesktop.DBus.Error.Spawn.ChildExited"
#define DBUS_ERROR_SPAWN_CHILD_SIGNALED "org.freedesktop.DBus.Error.Spawn.ChildSignaled"
#define DBUS_ERROR_SPAWN_FAILED "org.freedesktop.DBus.Error.Spawn.Failed"
#define DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN "org.freedesktop.DBus.Error.UnixProcessIdUnknown"
#define DBUS_ERROR_INVALID_SIGNATURE "org.freedesktop.DBus.Error.InvalidSignature"
#define DBUS_ERROR_UNIX_SECURITY_CONTEXT_UNKNOWN "org.freedesktop.DBus.Error.UnixSecurityContextUnknown"
#define DBUS_INTROSPECT_1_0_XML_NAMESPACE "http://www.freedesktop.org/standards/dbus"
#define DBUS_INTROSPECT_1_0_XML_PUBLIC_IDENTIFIER "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
#define DBUS_INTROSPECT_1_0_XML_SYSTEM_IDENTIFIER "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd"
#define DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE "<!DOCTYPE node PUBLIC \""DBUS_INTROSPECT_1_0_XML_PUBLIC_IDENTIFIER"\"\n\""DBUS_INTROSPECT_1_0_XML_SYSTEM_IDENTIFIER"\">\n"
#ifdef __cplusplus
}
#endif
#endif /* DBUS_PROTOCOL_H */
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