106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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#include <endian.h>
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#include "macro.h"
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/* Packet header */
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struct _packed_ bus_header {
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/* The first four fields are identical for dbus1, and dbus2 */
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uint8_t endian;
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uint8_t type;
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uint8_t flags;
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uint8_t version;
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union _packed_ {
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/* dbus1: Used for SOCK_STREAM connections */
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struct _packed_ {
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uint32_t body_size;
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/* Note that what the bus spec calls "serial" we'll call
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"cookie" instead, because we don't want to imply that the
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cookie was in any way monotonically increasing. */
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uint32_t serial;
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uint32_t fields_size;
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} dbus1;
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/* dbus2: Used for kdbus connections */
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struct _packed_ {
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uint32_t _reserved;
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uint64_t cookie;
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} dbus2;
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/* Note that both header versions have the same size! */
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};
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};
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/* Endianness */
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enum {
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_BUS_INVALID_ENDIAN = 0,
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BUS_LITTLE_ENDIAN = 'l',
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BUS_BIG_ENDIAN = 'B',
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#if __BYTE_ORDER == __BIG_ENDIAN
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BUS_NATIVE_ENDIAN = BUS_BIG_ENDIAN,
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BUS_REVERSE_ENDIAN = BUS_LITTLE_ENDIAN
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#else
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BUS_NATIVE_ENDIAN = BUS_LITTLE_ENDIAN,
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BUS_REVERSE_ENDIAN = BUS_BIG_ENDIAN
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#endif
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};
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/* Flags */
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enum {
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BUS_MESSAGE_NO_REPLY_EXPECTED = 1 << 0,
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BUS_MESSAGE_NO_AUTO_START = 1 << 1,
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BUS_MESSAGE_ALLOW_INTERACTIVE_AUTHORIZATION = 1 << 2,
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};
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/* Header fields */
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enum {
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_BUS_MESSAGE_HEADER_INVALID = 0,
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BUS_MESSAGE_HEADER_PATH,
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BUS_MESSAGE_HEADER_INTERFACE,
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BUS_MESSAGE_HEADER_MEMBER,
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BUS_MESSAGE_HEADER_ERROR_NAME,
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BUS_MESSAGE_HEADER_REPLY_SERIAL,
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BUS_MESSAGE_HEADER_DESTINATION,
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BUS_MESSAGE_HEADER_SENDER,
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BUS_MESSAGE_HEADER_SIGNATURE,
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BUS_MESSAGE_HEADER_UNIX_FDS,
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_BUS_MESSAGE_HEADER_MAX
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};
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/* RequestName parameters */
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enum {
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BUS_NAME_ALLOW_REPLACEMENT = 1 << 0,
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BUS_NAME_REPLACE_EXISTING = 1 << 1,
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BUS_NAME_DO_NOT_QUEUE = 1 << 2,
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};
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/* RequestName returns */
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enum {
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BUS_NAME_PRIMARY_OWNER = 1,
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BUS_NAME_IN_QUEUE = 2,
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BUS_NAME_EXISTS = 3,
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BUS_NAME_ALREADY_OWNER = 4
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};
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/* ReleaseName returns */
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enum {
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BUS_NAME_RELEASED = 1,
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BUS_NAME_NON_EXISTENT = 2,
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BUS_NAME_NOT_OWNER = 3,
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};
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/* StartServiceByName returns */
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enum {
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BUS_START_REPLY_SUCCESS = 1,
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BUS_START_REPLY_ALREADY_RUNNING = 2,
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};
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