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;
106 char sender_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
107 char destination_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
110 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
112 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
113 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
116 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
117 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
120 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
121 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
124 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
125 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
128 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
129 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
132 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
133 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
136 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
138 sizeof(struct bus_header) +
139 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
140 BUS_MESSAGE_BODY_SIZE(m);
143 static inline void bus_message_unrefp(sd_bus_message **m) {
144 sd_bus_message_unref(*m);
147 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
149 int bus_message_seal(sd_bus_message *m, uint64_t serial);
150 int bus_message_dump(sd_bus_message *m);
151 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
152 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
154 int bus_message_from_header(
159 const struct ucred *ucred,
162 sd_bus_message **ret);
164 int bus_message_from_malloc(
169 const struct ucred *ucred,
171 sd_bus_message **ret);
173 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
175 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
177 int bus_message_parse_fields(sd_bus_message *m);
179 int bus_header_size(struct bus_header *h, size_t *sum);