1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2013 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
30 struct bus_container {
39 _packed_ struct bus_header {
49 struct sd_bus_message {
52 uint32_t reply_serial;
55 const char *interface;
57 const char *destination;
59 const char *signature;
76 struct bus_header *header;
83 struct bus_container root_container, *sub_containers;
84 unsigned n_containers;
86 struct iovec iovec[4];
90 #if __BYTE_ORDER == __BIG_ENDIAN
91 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_BIG_ENDIAN)
93 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_LITTLE_ENDIAN)
96 static inline uint32_t BUS_MESSAGE_BSWAP(sd_bus_message *m, uint32_t u) {
97 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
100 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
101 return BUS_MESSAGE_BSWAP(m, m->header->serial);
104 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
105 return BUS_MESSAGE_BSWAP(m, m->header->body_size);
108 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
109 return BUS_MESSAGE_BSWAP(m, m->header->fields_size);
112 static inline void bus_message_unrefp(sd_bus_message **m) {
113 sd_bus_message_unref(*m);
116 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
118 int message_parse(sd_bus_message *m);
119 int message_seal(sd_bus_message *m, uint64_t serial);
120 void message_dump(sd_bus_message *m);
121 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);