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/>.
27 #include "time-util.h"
29 typedef enum BusTransport {
32 BUS_TRANSPORT_MACHINE,
34 _BUS_TRANSPORT_INVALID = -1
37 typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
39 struct bus_properties_map {
41 const char *signature;
42 bus_property_set_t set;
46 int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
48 int bus_message_map_all_properties(sd_bus_message *m, const struct bus_properties_map *map, void *userdata);
49 int bus_message_map_properties_changed(sd_bus_message *m, const struct bus_properties_map *map, void *userdata);
50 int bus_map_all_properties(sd_bus *bus, const char *destination, const char *path, const struct bus_properties_map *map, void *userdata);
52 int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name);
54 typedef bool (*check_idle_t)(void *userdata);
56 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);
58 int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
60 int bus_check_peercred(sd_bus *c);
62 int bus_test_polkit(sd_bus_message *call, int capability, const char *action, uid_t good_user, bool *_challenge, sd_bus_error *e);
64 int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, bool interactive, uid_t good_user, Hashmap **registry, sd_bus_error *error);
65 void bus_verify_polkit_async_registry_free(Hashmap *registry);
67 int bus_open_system_systemd(sd_bus **_bus);
68 int bus_open_user_systemd(sd_bus **_bus);
70 int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
71 int bus_open_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus);
73 int bus_print_property(const char *name, sd_bus_message *property, bool all);
74 int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all);
76 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);
78 #define bus_property_get_usec ((sd_bus_property_get_t) NULL)
79 #define bus_property_set_usec ((sd_bus_property_set_t) NULL)
81 assert_cc(sizeof(int) == sizeof(int32_t));
82 #define bus_property_get_int ((sd_bus_property_get_t) NULL)
84 assert_cc(sizeof(unsigned) == sizeof(unsigned));
85 #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL)
87 /* On 64bit machines we can use the default serializer for size_t and
88 * friends, otherwise we need to cast this manually */
89 #if __SIZEOF_SIZE_T__ == 8
90 #define bus_property_get_size ((sd_bus_property_get_t) NULL)
92 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);
95 #if __SIZEOF_LONG__ == 8
96 #define bus_property_get_long ((sd_bus_property_get_t) NULL)
97 #define bus_property_get_ulong ((sd_bus_property_get_t) NULL)
99 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);
100 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);
103 /* uid_t and friends on Linux 32 bit. This means we can just use the
104 * default serializer for 32bit unsigned, for serializing it, and map
106 assert_cc(sizeof(uid_t) == sizeof(uint32_t));
107 #define bus_property_get_uid ((sd_bus_property_get_t) NULL)
109 assert_cc(sizeof(gid_t) == sizeof(uint32_t));
110 #define bus_property_get_gid ((sd_bus_property_get_t) NULL)
112 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
113 #define bus_property_get_pid ((sd_bus_property_get_t) NULL)
115 assert_cc(sizeof(mode_t) == sizeof(uint32_t));
116 #define bus_property_get_mode ((sd_bus_property_get_t) NULL)
118 int bus_log_parse_error(int r);
119 int bus_log_create_error(int r);
121 typedef struct UnitInfo {
124 const char *description;
125 const char *load_state;
126 const char *active_state;
127 const char *sub_state;
128 const char *following;
129 const char *unit_path;
131 const char *job_type;
132 const char *job_path;
135 int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u);
137 static inline void sd_bus_close_unrefp(sd_bus **bus) {
145 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus*, sd_bus_unref);
146 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_slot*, sd_bus_slot_unref);
147 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message*, sd_bus_message_unref);
148 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_creds*, sd_bus_creds_unref);
149 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_track*, sd_bus_track_unref);
151 #define _cleanup_bus_unref_ _cleanup_(sd_bus_unrefp)
152 #define _cleanup_bus_close_unref_ _cleanup_(sd_bus_close_unrefp)
153 #define _cleanup_bus_slot_unref_ _cleanup_(sd_bus_slot_unrefp)
154 #define _cleanup_bus_message_unref_ _cleanup_(sd_bus_message_unrefp)
155 #define _cleanup_bus_creds_unref_ _cleanup_(sd_bus_creds_unrefp)
156 #define _cleanup_bus_track_unref_ _cleanup_(sd_bus_slot_unrefp)
157 #define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free)
159 #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \
160 int function(sd_bus *bus, \
162 const char *interface, \
163 const char *property, \
164 sd_bus_message *reply, \
166 sd_bus_error *error) { \
169 type *field = userdata; \
176 value = strempty(name##_to_string(*field)); \
178 r = sd_bus_message_append_basic(reply, 's', value); \
184 struct __useless_struct_to_allow_trailing_semicolon__
186 #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \
187 SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \
188 SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags))
190 int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error);
192 int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment);
194 typedef struct BusWaitForJobs BusWaitForJobs;
196 int bus_wait_for_jobs_new(sd_bus *bus, BusWaitForJobs **ret);
197 void bus_wait_for_jobs_free(BusWaitForJobs *d);
198 int bus_wait_for_jobs_add(BusWaitForJobs *d, const char *path);
199 int bus_wait_for_jobs(BusWaitForJobs *d, bool quiet);
201 DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs*, bus_wait_for_jobs_free);
203 int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet);
205 int bus_path_encode_unique(sd_bus *b, const char *prefix, const char *sender_id, const char *external_id, char **ret_path);
206 int bus_path_decode_unique(const char *path, const char *prefix, char **ret_sender, char **ret_external);