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/>.
26 #include "bus-error.h"
27 #include "bus-internal.h"
30 #include "time-util.h"
32 typedef int (*bus_property_set_t
) (sd_bus
*bus
, const char *member
, sd_bus_message
*m
, sd_bus_error
*error
, void *userdata
);
34 struct bus_properties_map
{
36 const char *signature
;
37 bus_property_set_t set
;
41 int bus_map_id128(sd_bus
*bus
, const char *member
, sd_bus_message
*m
, sd_bus_error
*error
, void *userdata
);
43 int bus_message_map_all_properties(sd_bus_message
*m
, const struct bus_properties_map
*map
, void *userdata
);
44 int bus_message_map_properties_changed(sd_bus_message
*m
, const struct bus_properties_map
*map
, void *userdata
);
45 int bus_map_all_properties(sd_bus
*bus
, const char *destination
, const char *path
, const struct bus_properties_map
*map
, void *userdata
);
47 int bus_async_unregister_and_exit(sd_event
*e
, sd_bus
*bus
, const char *name
);
49 typedef bool (*check_idle_t
)(void *userdata
);
51 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
);
53 int bus_name_has_owner(sd_bus
*c
, const char *name
, sd_bus_error
*error
);
55 int bus_check_peercred(sd_bus
*c
);
57 int bus_test_polkit(sd_bus_message
*call
, int capability
, const char *action
, uid_t good_user
, bool *_challenge
, sd_bus_error
*e
);
59 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
);
60 void bus_verify_polkit_async_registry_free(Hashmap
*registry
);
62 int bus_open_system_systemd(sd_bus
**_bus
);
63 int bus_open_user_systemd(sd_bus
**_bus
);
65 int bus_open_transport(BusTransport transport
, const char *host
, bool user
, sd_bus
**bus
);
66 int bus_open_transport_systemd(BusTransport transport
, const char *host
, bool user
, sd_bus
**bus
);
68 int bus_print_property(const char *name
, sd_bus_message
*property
, bool all
);
69 int bus_print_all_properties(sd_bus
*bus
, const char *dest
, const char *path
, char **filter
, bool all
);
71 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
);
73 #define bus_property_get_usec ((sd_bus_property_get_t) NULL)
74 #define bus_property_set_usec ((sd_bus_property_set_t) NULL)
76 assert_cc(sizeof(int) == sizeof(int32_t));
77 #define bus_property_get_int ((sd_bus_property_get_t) NULL)
79 assert_cc(sizeof(unsigned) == sizeof(unsigned));
80 #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL)
82 /* On 64bit machines we can use the default serializer for size_t and
83 * friends, otherwise we need to cast this manually */
84 #if __SIZEOF_SIZE_T__ == 8
85 #define bus_property_get_size ((sd_bus_property_get_t) NULL)
87 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
);
90 #if __SIZEOF_LONG__ == 8
91 #define bus_property_get_long ((sd_bus_property_get_t) NULL)
92 #define bus_property_get_ulong ((sd_bus_property_get_t) NULL)
94 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
);
95 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
);
98 /* uid_t and friends on Linux 32 bit. This means we can just use the
99 * default serializer for 32bit unsigned, for serializing it, and map
101 assert_cc(sizeof(uid_t
) == sizeof(uint32_t));
102 #define bus_property_get_uid ((sd_bus_property_get_t) NULL)
104 assert_cc(sizeof(gid_t
) == sizeof(uint32_t));
105 #define bus_property_get_gid ((sd_bus_property_get_t) NULL)
107 assert_cc(sizeof(pid_t
) == sizeof(uint32_t));
108 #define bus_property_get_pid ((sd_bus_property_get_t) NULL)
110 assert_cc(sizeof(mode_t
) == sizeof(uint32_t));
111 #define bus_property_get_mode ((sd_bus_property_get_t) NULL)
113 int bus_log_parse_error(int r
);
114 int bus_log_create_error(int r
);
116 typedef struct UnitInfo
{
119 const char *description
;
120 const char *load_state
;
121 const char *active_state
;
122 const char *sub_state
;
123 const char *following
;
124 const char *unit_path
;
126 const char *job_type
;
127 const char *job_path
;
130 int bus_parse_unit_info(sd_bus_message
*message
, UnitInfo
*u
);
132 #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \
133 int function(sd_bus *bus, \
135 const char *interface, \
136 const char *property, \
137 sd_bus_message *reply, \
139 sd_bus_error *error) { \
142 type *field = userdata; \
149 value = strempty(name##_to_string(*field)); \
151 r = sd_bus_message_append_basic(reply, 's', value); \
157 struct __useless_struct_to_allow_trailing_semicolon__
159 #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \
160 SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \
161 SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags))
163 int bus_append_unit_property_assignment(sd_bus_message
*m
, const char *assignment
);
165 typedef struct BusWaitForJobs BusWaitForJobs
;
167 int bus_wait_for_jobs_new(sd_bus
*bus
, BusWaitForJobs
**ret
);
168 void bus_wait_for_jobs_free(BusWaitForJobs
*d
);
169 int bus_wait_for_jobs_add(BusWaitForJobs
*d
, const char *path
);
170 int bus_wait_for_jobs(BusWaitForJobs
*d
, bool quiet
);
171 int bus_wait_for_jobs_one(BusWaitForJobs
*d
, const char *path
, bool quiet
);
173 DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs
*, bus_wait_for_jobs_free
);
175 int bus_deserialize_and_dump_unit_file_changes(sd_bus_message
*m
, bool quiet
, UnitFileChange
**changes
, unsigned *n_changes
);
177 int bus_path_encode_unique(sd_bus
*b
, const char *prefix
, const char *sender_id
, const char *external_id
, char **ret_path
);
178 int bus_path_decode_unique(const char *path
, const char *prefix
, char **ret_sender
, char **ret_external
);