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;
82 struct bus_header *header;
85 struct kdbus_msg *kdbus;
94 struct bus_container root_container, *containers;
95 unsigned n_containers;
97 struct iovec iovec[4];
100 char *peeked_signature;
105 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
107 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
108 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
111 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
112 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
115 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
116 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
119 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
120 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
123 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
124 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
127 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
128 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
131 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
133 sizeof(struct bus_header) +
134 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
135 BUS_MESSAGE_BODY_SIZE(m);
138 static inline void bus_message_unrefp(sd_bus_message **m) {
139 sd_bus_message_unref(*m);
142 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
144 int bus_message_seal(sd_bus_message *m, uint64_t serial);
145 int bus_message_dump(sd_bus_message *m);
146 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
147 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
149 int bus_message_from_header(
154 const struct ucred *ucred,
157 sd_bus_message **ret);
159 int bus_message_from_malloc(
164 const struct ucred *ucred,
166 sd_bus_message **ret);
168 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
170 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
172 int bus_message_parse_fields(sd_bus_message *m);
174 int bus_header_size(struct bus_header *h, size_t *sum);