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;
85 struct bus_header *header;
88 struct kdbus_msg *kdbus;
97 struct bus_container root_container, *containers;
98 unsigned n_containers;
100 struct iovec iovec[3];
103 char *peeked_signature;
107 char sender_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
108 char destination_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
112 const char *tid_comm;
115 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
117 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
118 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
121 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
122 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
125 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
126 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
129 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
130 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
133 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
134 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
137 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
138 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
141 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
143 sizeof(struct bus_header) +
144 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
145 BUS_MESSAGE_BODY_SIZE(m);
148 static inline void bus_message_unrefp(sd_bus_message **m) {
149 sd_bus_message_unref(*m);
152 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
154 int bus_message_seal(sd_bus_message *m, uint64_t serial);
155 int bus_message_dump(sd_bus_message *m);
156 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
157 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
159 int bus_message_from_header(
164 const struct ucred *ucred,
167 sd_bus_message **ret);
169 int bus_message_from_malloc(
174 const struct ucred *ucred,
176 sd_bus_message **ret);
178 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
180 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
182 int bus_message_parse_fields(sd_bus_message *m);
184 int bus_header_size(struct bus_header *h, size_t *sum);