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"
30 typedef enum BusTransport {
33 BUS_TRANSPORT_CONTAINER,
35 _BUS_TRANSPORT_INVALID = -1
38 typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
40 struct bus_properties_map {
42 const char *signature;
43 bus_property_set_t set;
47 int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata);
49 int bus_map_all_properties(sd_bus *bus,
50 const char *destination,
52 const struct bus_properties_map *map,
55 int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name);
57 int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout);
59 int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
61 int bus_check_peercred(sd_bus *c);
63 int bus_verify_polkit(sd_bus *bus, sd_bus_message *m, const char *action, bool interactive, bool *_challenge, sd_bus_error *e);
65 int bus_verify_polkit_async(sd_bus *bus, Hashmap **registry, sd_bus_message *m, const char *action, bool interactive, sd_bus_error *error, sd_bus_message_handler_t callback, void *userdata);
66 void bus_verify_polkit_async_registry_free(sd_bus *bus, Hashmap *registry);
68 int bus_open_system_systemd(sd_bus **_bus);
69 int bus_open_user_systemd(sd_bus **_bus);
71 int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus);
72 int bus_open_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus);
74 int bus_print_property(const char *name, sd_bus_message *property, bool all);
75 int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all);
77 int bus_property_get_tristate(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);
78 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);
80 #define bus_property_get_usec ((sd_bus_property_get_t) NULL)
81 #define bus_property_set_usec ((sd_bus_property_set_t) NULL)
83 assert_cc(sizeof(int) == sizeof(int32_t));
84 #define bus_property_get_int ((sd_bus_property_get_t) NULL)
86 assert_cc(sizeof(unsigned) == sizeof(unsigned));
87 #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL)
89 /* On 64bit machines we can use the default serializer for size_t and
90 * friends, otherwise we need to cast this manually */
91 #if __SIZEOF_SIZE_T__ == 8
92 #define bus_property_get_size ((sd_bus_property_get_t) NULL)
94 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);
97 #if __SIZEOF_LONG__ == 8
98 #define bus_property_get_long ((sd_bus_property_get_t) NULL)
99 #define bus_property_get_ulong ((sd_bus_property_get_t) NULL)
101 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);
102 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);
105 /* uid_t and friends on Linux 32 bit. This means we can just use the
106 * default serializer for 32bit unsigned, for serializing it, and map
108 assert_cc(sizeof(uid_t) == sizeof(uint32_t));
109 #define bus_property_get_uid ((sd_bus_property_get_t) NULL)
111 assert_cc(sizeof(gid_t) == sizeof(uint32_t));
112 #define bus_property_get_gid ((sd_bus_property_get_t) NULL)
114 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
115 #define bus_property_get_pid ((sd_bus_property_get_t) NULL)
117 assert_cc(sizeof(mode_t) == sizeof(uint32_t));
118 #define bus_property_get_mode ((sd_bus_property_get_t) NULL)
120 int bus_log_parse_error(int r);
121 int bus_log_create_error(int r);
123 typedef struct UnitInfo {
125 const char *description;
126 const char *load_state;
127 const char *active_state;
128 const char *sub_state;
129 const char *following;
130 const char *unit_path;
132 const char *job_type;
133 const char *job_path;
136 int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u);
138 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus*, sd_bus_unref);
139 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message*, sd_bus_message_unref);
140 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_creds*, sd_bus_creds_unref);
142 #define _cleanup_bus_unref_ _cleanup_(sd_bus_unrefp)
143 #define _cleanup_bus_message_unref_ _cleanup_(sd_bus_message_unrefp)
144 #define _cleanup_bus_creds_unref_ _cleanup_(sd_bus_creds_unrefp)
145 #define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free)
147 #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \
148 int function(sd_bus *bus, \
150 const char *interface, \
151 const char *property, \
152 sd_bus_message *reply, \
154 sd_bus_error *error) { \
157 type *field = userdata; \
164 value = strempty(name##_to_string(*field)); \
166 r = sd_bus_message_append_basic(reply, 's', value); \
172 struct __useless_struct_to_allow_trailing_semicolon__
174 #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \
175 SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \
176 SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags))
178 int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error);