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>
32 struct bus_container {
52 struct sd_bus_message {
55 uint32_t reply_serial;
58 const char *interface;
60 const char *destination;
81 struct bus_header *header;
84 struct kdbus_msg *kdbus;
93 struct bus_container root_container, *containers;
94 unsigned n_containers;
96 struct iovec iovec[4];
99 char *peeked_signature;
104 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
106 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
107 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
110 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
111 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
114 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
115 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
118 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
119 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
122 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
123 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
126 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
127 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
130 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
132 sizeof(struct bus_header) +
133 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
134 BUS_MESSAGE_BODY_SIZE(m);
137 static inline void bus_message_unrefp(sd_bus_message **m) {
138 sd_bus_message_unref(*m);
141 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
143 int bus_message_seal(sd_bus_message *m, uint64_t serial);
144 int bus_message_dump(sd_bus_message *m);
145 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
146 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
148 int bus_message_from_header(
153 const struct ucred *ucred,
156 sd_bus_message **ret);
158 int bus_message_from_malloc(
163 const struct ucred *ucred,
165 sd_bus_message **ret);
167 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
169 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
171 int bus_message_parse_fields(sd_bus_message *m);
173 int bus_header_size(struct bus_header *h, size_t *sum);