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 #include "time-util.h"
33 struct bus_container {
53 struct sd_bus_message {
56 uint32_t reply_serial;
59 const char *interface;
61 const char *destination;
83 struct bus_header *header;
86 struct kdbus_msg *kdbus;
95 struct bus_container root_container, *containers;
96 unsigned n_containers;
98 struct iovec iovec[4];
101 char *peeked_signature;
106 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
108 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
109 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
112 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
113 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
116 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
117 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
120 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
121 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
124 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
125 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
128 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
129 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
132 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
134 sizeof(struct bus_header) +
135 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
136 BUS_MESSAGE_BODY_SIZE(m);
139 static inline void bus_message_unrefp(sd_bus_message **m) {
140 sd_bus_message_unref(*m);
143 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
145 int bus_message_seal(sd_bus_message *m, uint64_t serial);
146 int bus_message_dump(sd_bus_message *m);
147 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
148 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
150 int bus_message_from_header(
155 const struct ucred *ucred,
158 sd_bus_message **ret);
160 int bus_message_from_malloc(
165 const struct ucred *ucred,
167 sd_bus_message **ret);
169 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
171 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
173 int bus_message_parse_fields(sd_bus_message *m);
175 int bus_header_size(struct bus_header *h, size_t *sum);