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 {
37 unsigned index, saved_index;
53 struct bus_body_part {
60 struct bus_body_part *next;
63 struct sd_bus_message {
68 uint32_t reply_serial;
71 const char *interface;
73 const char *destination;
97 struct bus_header *header;
98 struct bus_body_part body;
99 struct bus_body_part *body_end;
100 unsigned n_body_parts;
105 struct bus_body_part *cached_rindex_part;
106 size_t cached_rindex_part_begin;
111 struct bus_container root_container, *containers;
112 unsigned n_containers;
115 struct iovec iovec_fixed[2];
118 struct kdbus_msg *kdbus;
120 char *peeked_signature;
124 char sender_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
125 char destination_buffer[3 + DECIMAL_STR_MAX(uint64_t) + 1];
129 const char *tid_comm;
133 size_t cmdline_length;
134 char **cmdline_array;
140 struct kdbus_audit *audit;
143 size_t capability_size;
146 #define BUS_MESSAGE_NEED_BSWAP(m) ((m)->header->endian != SD_BUS_NATIVE_ENDIAN)
148 static inline uint16_t BUS_MESSAGE_BSWAP16(sd_bus_message *m, uint16_t u) {
149 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_16(u) : u;
152 static inline uint32_t BUS_MESSAGE_BSWAP32(sd_bus_message *m, uint32_t u) {
153 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_32(u) : u;
156 static inline uint64_t BUS_MESSAGE_BSWAP64(sd_bus_message *m, uint64_t u) {
157 return BUS_MESSAGE_NEED_BSWAP(m) ? bswap_64(u) : u;
160 static inline uint32_t BUS_MESSAGE_SERIAL(sd_bus_message *m) {
161 return BUS_MESSAGE_BSWAP32(m, m->header->serial);
164 static inline uint32_t BUS_MESSAGE_BODY_SIZE(sd_bus_message *m) {
165 return BUS_MESSAGE_BSWAP32(m, m->header->body_size);
168 static inline uint32_t BUS_MESSAGE_FIELDS_SIZE(sd_bus_message *m) {
169 return BUS_MESSAGE_BSWAP32(m, m->header->fields_size);
172 static inline uint32_t BUS_MESSAGE_SIZE(sd_bus_message *m) {
174 sizeof(struct bus_header) +
175 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m)) +
176 BUS_MESSAGE_BODY_SIZE(m);
179 static inline uint32_t BUS_MESSAGE_BODY_BEGIN(sd_bus_message *m) {
181 sizeof(struct bus_header) +
182 ALIGN8(BUS_MESSAGE_FIELDS_SIZE(m));
185 static inline void* BUS_MESSAGE_FIELDS(sd_bus_message *m) {
186 return (uint8_t*) m->header + sizeof(struct bus_header);
189 static inline void bus_message_unrefp(sd_bus_message **m) {
190 sd_bus_message_unref(*m);
193 #define _cleanup_bus_message_unref_ __attribute__((cleanup(bus_message_unrefp)))
195 int bus_message_seal(sd_bus_message *m, uint64_t serial);
196 int bus_message_dump(sd_bus_message *m);
197 int bus_message_get_blob(sd_bus_message *m, void **buffer, size_t *sz);
198 int bus_message_read_strv_extend(sd_bus_message *m, char ***l);
200 int bus_message_from_header(
205 const struct ucred *ucred,
208 sd_bus_message **ret);
210 int bus_message_from_malloc(
215 const struct ucred *ucred,
217 sd_bus_message **ret);
219 const char* bus_message_get_arg(sd_bus_message *m, unsigned i);
221 int bus_message_append_ap(sd_bus_message *m, const char *types, va_list ap);
223 int bus_message_parse_fields(sd_bus_message *m);
225 bool bus_header_is_complete(struct bus_header *h, size_t size);
226 int bus_header_message_size(struct bus_header *h, size_t *sum);
228 struct bus_body_part *message_append_part(sd_bus_message *m);
230 #define MESSAGE_FOREACH_PART(part, i, m) \
231 for ((i) = 0, (part) = &(m)->body; (i) < (m)->n_body_parts; (i)++, (part) = (part)->next)