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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
0461f8cd LP |
2 | #pragma once |
3 | ||
6017365a | 4 | #include <endian.h> |
0461f8cd | 5 | |
2ac7c17f LP |
6 | #include "macro.h" |
7 | ||
22d097a6 LP |
8 | /* Packet header */ |
9 | ||
2ac7c17f LP |
10 | struct _packed_ bus_header { |
11 | /* The first four fields are identical for dbus1, and dbus2 */ | |
22d097a6 LP |
12 | uint8_t endian; |
13 | uint8_t type; | |
14 | uint8_t flags; | |
15 | uint8_t version; | |
2ac7c17f LP |
16 | |
17 | union _packed_ { | |
18 | /* dbus1: Used for SOCK_STREAM connections */ | |
19 | struct _packed_ { | |
20 | uint32_t body_size; | |
21 | ||
22 | /* Note that what the bus spec calls "serial" we'll call | |
23 | "cookie" instead, because we don't want to imply that the | |
24 | cookie was in any way monotonically increasing. */ | |
25 | uint32_t serial; | |
26 | uint32_t fields_size; | |
27 | } dbus1; | |
28 | ||
29 | /* dbus2: Used for kdbus connections */ | |
30 | struct _packed_ { | |
31 | uint32_t _reserved; | |
32 | uint64_t cookie; | |
33 | } dbus2; | |
34 | ||
35 | /* Note that both header versions have the same size! */ | |
36 | }; | |
37 | }; | |
22d097a6 | 38 | |
0461f8cd LP |
39 | /* Endianness */ |
40 | ||
41 | enum { | |
42 | _BUS_INVALID_ENDIAN = 0, | |
43 | BUS_LITTLE_ENDIAN = 'l', | |
44 | BUS_BIG_ENDIAN = 'B', | |
45 | #if __BYTE_ORDER == __BIG_ENDIAN | |
46 | BUS_NATIVE_ENDIAN = BUS_BIG_ENDIAN, | |
47 | BUS_REVERSE_ENDIAN = BUS_LITTLE_ENDIAN | |
48 | #else | |
49 | BUS_NATIVE_ENDIAN = BUS_LITTLE_ENDIAN, | |
50 | BUS_REVERSE_ENDIAN = BUS_BIG_ENDIAN | |
51 | #endif | |
52 | }; | |
53 | ||
54 | /* Flags */ | |
55 | ||
56 | enum { | |
be0b7a1a LP |
57 | BUS_MESSAGE_NO_REPLY_EXPECTED = 1 << 0, |
58 | BUS_MESSAGE_NO_AUTO_START = 1 << 1, | |
59 | BUS_MESSAGE_ALLOW_INTERACTIVE_AUTHORIZATION = 1 << 2, | |
0461f8cd LP |
60 | }; |
61 | ||
62 | /* Header fields */ | |
63 | ||
64 | enum { | |
65 | _BUS_MESSAGE_HEADER_INVALID = 0, | |
66 | BUS_MESSAGE_HEADER_PATH, | |
67 | BUS_MESSAGE_HEADER_INTERFACE, | |
68 | BUS_MESSAGE_HEADER_MEMBER, | |
69 | BUS_MESSAGE_HEADER_ERROR_NAME, | |
70 | BUS_MESSAGE_HEADER_REPLY_SERIAL, | |
71 | BUS_MESSAGE_HEADER_DESTINATION, | |
72 | BUS_MESSAGE_HEADER_SENDER, | |
73 | BUS_MESSAGE_HEADER_SIGNATURE, | |
74 | BUS_MESSAGE_HEADER_UNIX_FDS, | |
75 | _BUS_MESSAGE_HEADER_MAX | |
76 | }; | |
77 | ||
29a07cdb LP |
78 | /* RequestName parameters */ |
79 | ||
80 | enum { | |
be0b7a1a LP |
81 | BUS_NAME_ALLOW_REPLACEMENT = 1 << 0, |
82 | BUS_NAME_REPLACE_EXISTING = 1 << 1, | |
83 | BUS_NAME_DO_NOT_QUEUE = 1 << 2, | |
29a07cdb LP |
84 | }; |
85 | ||
0461f8cd LP |
86 | /* RequestName returns */ |
87 | enum { | |
88 | BUS_NAME_PRIMARY_OWNER = 1, | |
89 | BUS_NAME_IN_QUEUE = 2, | |
90 | BUS_NAME_EXISTS = 3, | |
91 | BUS_NAME_ALREADY_OWNER = 4 | |
92 | }; | |
93 | ||
94 | /* ReleaseName returns */ | |
95 | enum { | |
96 | BUS_NAME_RELEASED = 1, | |
97 | BUS_NAME_NON_EXISTENT = 2, | |
98 | BUS_NAME_NOT_OWNER = 3, | |
99 | }; | |
100 | ||
71ebe743 LP |
101 | /* StartServiceByName returns */ |
102 | enum { | |
103 | BUS_START_REPLY_SUCCESS = 1, | |
104 | BUS_START_REPLY_ALREADY_RUNNING = 2, | |
105 | }; |