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;
116 size_t cmdline_length;
117 char **cmdline_array;
124 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
126 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
127 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
130 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
131 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
134 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
135 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
138 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
139 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
142 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
143 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
146 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
147 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
150 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
152 sizeof(struct bus_header) +
153 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
154 BUS_MESSAGE_BODY_SIZE(m);
157 static inline void bus_message_unrefp(sd_bus_message **m) {
158 sd_bus_message_unref(*m);
161 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
163 int bus_message_seal(sd_bus_message *m, uint64_t serial);
164 int bus_message_dump(sd_bus_message *m);
165 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
166 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
168 int bus_message_from_header(
173 const struct ucred *ucred,
176 sd_bus_message **ret);
178 int bus_message_from_malloc(
183 const struct ucred *ucred,
185 sd_bus_message **ret);
187 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
189 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
191 int bus_message_parse_fields(sd_bus_message *m);
193 int bus_header_size(struct bus_header *h, size_t *sum);