1 /* SPDX-License-Identifier: LGPL-2.1+ */
5 This file is part of systemd.
7 Copyright 2013 Lennart Poettering
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/types.h>
33 #include "string-util.h"
35 typedef enum BusTransport {
38 BUS_TRANSPORT_MACHINE,
40 _BUS_TRANSPORT_INVALID = -1
43 typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
45 struct bus_properties_map {
47 const char *signature;
48 bus_property_set_t set;
53 BUS_MAP_STRDUP = 1U << 0, /* If set, each "s" message is duplicated. Thus, each pointer needs to be freed. */
54 BUS_MAP_BOOLEAN_AS_BOOL = 1U << 1, /* If set, each "b" message is written to a bool pointer. If not set, "b" is written to a int pointer. */
57 int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
59 #if 0 /// UNNEEDED by elogind
61 int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, unsigned flags, sd_bus_error *error, void *userdata);
62 int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, unsigned flags, sd_bus_error *error, void *userdata);
63 int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map,
64 unsigned flags, sd_bus_error *error, sd_bus_message **reply, void *userdata);
66 #if 0 /// UNNEEDED by elogind
67 int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name);
70 typedef bool (*check_idle_t)(void *userdata);
72 #if 0 /// UNNEEDED by elogind
73 int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout, check_idle_t check_idle, void *userdata);
76 int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
78 #if 0 /// UNNEEDED by elogind
79 int bus_check_peercred(sd_bus *c);
82 int bus_test_polkit(sd_bus_message *call, int capability, const char *action, const char **details, uid_t good_user, bool *_challenge, sd_bus_error *e);
84 int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, const char **details, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error);
85 void bus_verify_polkit_async_registry_free(Hashmap *registry);
87 #if 0 /// UNNEEDED by elogind
89 int bus_connect_system_systemd(sd_bus **_bus);
90 int bus_connect_user_systemd(sd_bus **_bus);
92 int bus_connect_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
93 #if 0 /// UNNEEDED by elogind
95 int bus_connect_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus);
97 typedef int (*bus_message_print_t) (const char *name, sd_bus_message *m, bool value, bool all);
99 int bus_print_property(const char *name, sd_bus_message *property, bool value, bool all);
100 int bus_message_print_all_properties(sd_bus_message *m, bus_message_print_t func, char **filter, bool value, bool all, Set **found_properties);
101 int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, bus_message_print_t func, char **filter, bool value, bool all, Set **found_properties);
103 int bus_property_get_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
104 int bus_property_set_bool(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, void *userdata, sd_bus_error *error);
105 #if 0 /// UNNEEDED by elogind
106 int bus_property_get_id128(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
109 #define bus_property_get_usec ((sd_bus_property_get_t) NULL)
110 #define bus_property_set_usec ((sd_bus_property_set_t) NULL)
112 assert_cc(sizeof(int) == sizeof(int32_t));
113 #define bus_property_get_int ((sd_bus_property_get_t) NULL)
115 assert_cc(sizeof(unsigned) == sizeof(uint32_t));
116 #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL)
118 /* On 64bit machines we can use the default serializer for size_t and
119 * friends, otherwise we need to cast this manually */
120 #if __SIZEOF_SIZE_T__ == 8
121 #define bus_property_get_size ((sd_bus_property_get_t) NULL)
123 int bus_property_get_size(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
126 #if __SIZEOF_LONG__ == 8
127 #define bus_property_get_long ((sd_bus_property_get_t) NULL)
128 #define bus_property_get_ulong ((sd_bus_property_get_t) NULL)
130 int bus_property_get_long(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
131 int bus_property_get_ulong(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
134 /* uid_t and friends on Linux 32 bit. This means we can just use the
135 * default serializer for 32bit unsigned, for serializing it, and map
137 assert_cc(sizeof(uid_t) == sizeof(uint32_t));
138 #define bus_property_get_uid ((sd_bus_property_get_t) NULL)
140 assert_cc(sizeof(gid_t) == sizeof(uint32_t));
141 #define bus_property_get_gid ((sd_bus_property_get_t) NULL)
143 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
144 #define bus_property_get_pid ((sd_bus_property_get_t) NULL)
146 assert_cc(sizeof(mode_t) == sizeof(uint32_t));
147 #define bus_property_get_mode ((sd_bus_property_get_t) NULL)
149 int bus_log_parse_error(int r);
150 int bus_log_create_error(int r);
152 #if 0 /// UNNEEDED by elogind
154 #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \
155 int function(sd_bus *bus, \
157 const char *interface, \
158 const char *property, \
159 sd_bus_message *reply, \
161 sd_bus_error *error) { \
164 type *field = userdata; \
171 value = strempty(name##_to_string(*field)); \
173 r = sd_bus_message_append_basic(reply, 's', value); \
180 #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \
181 SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \
182 SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags))
184 #if 0 /// UNNEEDED by elogind
185 int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path);
186 int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external);
189 #if 0 /// UNNEEDED by elogind
190 int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
192 int bus_track_add_name_many(sd_bus_track *t, char **l);
195 int bus_open_system_watch_bind(sd_bus **ret);