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 <sys/types.h>
29 #include "sd-bus-vtable.h"
36 #include "string-util.h"
37 #include "time-util.h"
39 typedef enum BusTransport
{
42 BUS_TRANSPORT_MACHINE
,
44 _BUS_TRANSPORT_INVALID
= -1
47 typedef int (*bus_property_set_t
) (sd_bus
*bus
, const char *member
, sd_bus_message
*m
, sd_bus_error
*error
, void *userdata
);
49 struct bus_properties_map
{
51 const char *signature
;
52 bus_property_set_t set
;
56 int bus_map_id128(sd_bus
*bus
, const char *member
, sd_bus_message
*m
, sd_bus_error
*error
, void *userdata
);
58 int bus_message_map_all_properties(sd_bus_message
*m
, const struct bus_properties_map
*map
, void *userdata
);
59 int bus_message_map_properties_changed(sd_bus_message
*m
, const struct bus_properties_map
*map
, void *userdata
);
60 int bus_map_all_properties(sd_bus
*bus
, const char *destination
, const char *path
, const struct bus_properties_map
*map
, void *userdata
);
62 int bus_async_unregister_and_exit(sd_event
*e
, sd_bus
*bus
, const char *name
);
64 typedef bool (*check_idle_t
)(void *userdata
);
66 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
);
68 int bus_name_has_owner(sd_bus
*c
, const char *name
, sd_bus_error
*error
);
70 int bus_check_peercred(sd_bus
*c
);
72 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
);
74 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
);
75 void bus_verify_polkit_async_registry_free(Hashmap
*registry
);
77 int bus_connect_system_systemd(sd_bus
**_bus
);
78 int bus_connect_user_systemd(sd_bus
**_bus
);
80 int bus_connect_transport(BusTransport transport
, const char *host
, bool user
, sd_bus
**bus
);
81 int bus_connect_transport_systemd(BusTransport transport
, const char *host
, bool user
, sd_bus
**bus
);
83 int bus_print_property(const char *name
, sd_bus_message
*property
, bool all
);
84 int bus_print_all_properties(sd_bus
*bus
, const char *dest
, const char *path
, char **filter
, bool all
);
86 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
);
88 #define bus_property_get_usec ((sd_bus_property_get_t) NULL)
89 #define bus_property_set_usec ((sd_bus_property_set_t) NULL)
91 assert_cc(sizeof(int) == sizeof(int32_t));
92 #define bus_property_get_int ((sd_bus_property_get_t) NULL)
94 assert_cc(sizeof(unsigned) == sizeof(unsigned));
95 #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL)
97 /* On 64bit machines we can use the default serializer for size_t and
98 * friends, otherwise we need to cast this manually */
99 #if __SIZEOF_SIZE_T__ == 8
100 #define bus_property_get_size ((sd_bus_property_get_t) NULL)
102 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
);
105 #if __SIZEOF_LONG__ == 8
106 #define bus_property_get_long ((sd_bus_property_get_t) NULL)
107 #define bus_property_get_ulong ((sd_bus_property_get_t) NULL)
109 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
);
110 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
);
113 /* uid_t and friends on Linux 32 bit. This means we can just use the
114 * default serializer for 32bit unsigned, for serializing it, and map
116 assert_cc(sizeof(uid_t
) == sizeof(uint32_t));
117 #define bus_property_get_uid ((sd_bus_property_get_t) NULL)
119 assert_cc(sizeof(gid_t
) == sizeof(uint32_t));
120 #define bus_property_get_gid ((sd_bus_property_get_t) NULL)
122 assert_cc(sizeof(pid_t
) == sizeof(uint32_t));
123 #define bus_property_get_pid ((sd_bus_property_get_t) NULL)
125 assert_cc(sizeof(mode_t
) == sizeof(uint32_t));
126 #define bus_property_get_mode ((sd_bus_property_get_t) NULL)
128 int bus_log_parse_error(int r
);
129 int bus_log_create_error(int r
);
131 typedef struct UnitInfo
{
134 const char *description
;
135 const char *load_state
;
136 const char *active_state
;
137 const char *sub_state
;
138 const char *following
;
139 const char *unit_path
;
141 const char *job_type
;
142 const char *job_path
;
145 int bus_parse_unit_info(sd_bus_message
*message
, UnitInfo
*u
);
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_append_unit_property_assignment(sd_bus_message
*m
, const char *assignment
);
180 typedef struct BusWaitForJobs BusWaitForJobs
;
182 int bus_wait_for_jobs_new(sd_bus
*bus
, BusWaitForJobs
**ret
);
183 void bus_wait_for_jobs_free(BusWaitForJobs
*d
);
184 int bus_wait_for_jobs_add(BusWaitForJobs
*d
, const char *path
);
185 int bus_wait_for_jobs(BusWaitForJobs
*d
, bool quiet
, const char *extra_args
);
186 int bus_wait_for_jobs_one(BusWaitForJobs
*d
, const char *path
, bool quiet
);
188 DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs
*, bus_wait_for_jobs_free
);
190 int bus_deserialize_and_dump_unit_file_changes(sd_bus_message
*m
, bool quiet
, UnitFileChange
**changes
, unsigned *n_changes
);
192 int bus_path_encode_unique(sd_bus
*b
, const char *prefix
, const char *sender_id
, const char *external_id
, char **ret_path
);
193 int bus_path_decode_unique(const char *path
, const char *prefix
, char **ret_sender
, char **ret_external
);
195 bool is_kdbus_wanted(void);
196 bool is_kdbus_available(void);
198 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
);