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;
84 struct bus_header *header;
87 struct kdbus_msg *kdbus;
96 struct bus_container root_container, *containers;
97 unsigned n_containers;
99 struct iovec iovec[4];
102 char *peeked_signature;
107 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
109 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
110 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
113 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
114 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
117 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
118 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
121 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
122 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
125 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
126 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
129 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
130 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
133 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
135 sizeof(struct bus_header) +
136 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
137 BUS_MESSAGE_BODY_SIZE(m);
140 static inline void bus_message_unrefp(sd_bus_message **m) {
141 sd_bus_message_unref(*m);
144 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
146 int bus_message_seal(sd_bus_message *m, uint64_t serial);
147 int bus_message_dump(sd_bus_message *m);
148 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
149 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
151 int bus_message_from_header(
156 const struct ucred *ucred,
159 sd_bus_message **ret);
161 int bus_message_from_malloc(
166 const struct ucred *ucred,
168 sd_bus_message **ret);
170 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
172 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
174 int bus_message_parse_fields(sd_bus_message *m);
176 int bus_header_size(struct bus_header *h, size_t *sum);