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/>.
24 #include <sys/socket.h>
26 #include <netinet/in.h>
35 #include "bus-error.h"
36 #include "bus-match.h"
37 #include "bus-kernel.h"
39 struct reply_callback {
40 sd_bus_message_handler_t callback;
47 struct filter_callback {
48 sd_bus_message_handler_t callback;
51 unsigned last_iteration;
53 LIST_FIELDS(struct filter_callback, callbacks);
56 struct object_callback {
57 sd_bus_message_handler_t callback;
63 unsigned last_iteration;
81 /* We use atomic ref counting here since sd_bus_message
82 objects retain references to their originating sd_bus but
83 we want to allow them to be processed in a different
84 thread. We won't provide full thread safety, but only the
85 bare minimum that makes it possible to use sd_bus and
86 sd_bus_message objects independently and on different
87 threads as long as each object is used only once at the
92 int input_fd, output_fd;
101 bool anonymous_auth:1;
103 bool prefer_writev:1;
105 bool match_callbacks_modified:1;
106 bool filter_callbacks_modified:1;
107 bool object_callbacks_modified:1;
112 sd_bus_message **rqueue;
113 unsigned rqueue_size;
115 sd_bus_message **wqueue;
116 unsigned wqueue_size;
123 struct bus_match_node match_callbacks;
124 Prioq *reply_callbacks_prioq;
125 Hashmap *reply_callbacks;
126 LIST_HEAD(struct filter_callback, filter_callbacks);
127 Hashmap *object_callbacks;
131 struct sockaddr_un un;
132 struct sockaddr_in in;
133 struct sockaddr_in6 in6;
135 socklen_t sockaddr_size;
139 sd_id128_t server_id;
142 unsigned address_index;
144 int last_connect_error;
148 struct iovec auth_iovec[3];
154 char label[NAME_MAX];
162 uint64_t hello_serial;
163 unsigned iteration_counter;
167 struct memfd_cache memfd_cache[MEMFD_CACHE_MAX];
168 unsigned n_memfd_cache;
171 static inline void bus_unrefp(sd_bus **b) {
175 #define _cleanup_bus_unref_ __attribute__((cleanup(bus_unrefp)))
176 #define _cleanup_bus_error_free_ __attribute__((cleanup(sd_bus_error_free)))
178 #define BUS_DEFAULT_TIMEOUT ((usec_t) (25 * USEC_PER_SEC))
180 #define BUS_WQUEUE_MAX 128
181 #define BUS_RQUEUE_MAX 128
183 #define BUS_MESSAGE_SIZE_MAX (64*1024*1024)
184 #define BUS_AUTH_SIZE_MAX (64*1024)
186 #define BUS_CONTAINER_DEPTH 128
188 /* Defined by the specification as maximum size of an array in
190 #define BUS_ARRAY_MAX_SIZE 67108864
192 #define BUS_FDS_MAX 1024
194 #define BUS_EXEC_ARGV_MAX 256
196 bool object_path_is_valid(const char *p);
197 bool interface_name_is_valid(const char *p);
198 bool service_name_is_valid(const char *p);
199 bool member_name_is_valid(const char *p);
201 bool namespace_complex_pattern(const char *pattern, const char *value);
202 bool path_complex_pattern(const char *pattern, const char *value);
204 bool namespace_simple_pattern(const char *pattern, const char *value);
205 bool path_simple_pattern(const char *pattern, const char *value);
207 int bus_message_type_from_string(const char *s, uint8_t *u);
208 const char *bus_message_type_to_string(uint8_t u);
210 #define error_name_is_valid interface_name_is_valid
212 int bus_ensure_running(sd_bus *bus);
213 int bus_start_running(sd_bus *bus);
214 int bus_next_address(sd_bus *bus);