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/>.
26 #include <sys/socket.h>
31 struct bus_container {
51 struct sd_bus_message {
54 uint32_t reply_serial;
57 const char *interface;
59 const char *destination;
79 struct bus_header *header;
90 struct bus_container root_container, *containers;
91 unsigned n_containers;
93 struct iovec iovec[4];
97 char *peeked_signature;
100 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
102 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
103 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
106 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
107 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
110 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
111 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
114 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
115 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
118 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
119 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
122 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
123 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
126 static inline void bus_message_unrefp(sd_bus_message **m) {
127 sd_bus_message_unref(*m);
130 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
132 int bus_message_seal(sd_bus_message *m, uint64_t serial);
133 int bus_message_dump(sd_bus_message *m);
134 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
135 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
137 int bus_message_from_malloc(
142 const struct ucred *ucred,
144 sd_bus_message **ret);
146 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);