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40ca29a1 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2013 Lennart Poettering | |
9 | ||
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. | |
14 | ||
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. | |
19 | ||
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/>. | |
22 | ***/ | |
23 | ||
24 | #include "sd-event.h" | |
25 | #include "sd-bus.h" | |
26 | #include "hashmap.h" | |
27 | #include "time-util.h" | |
28 | #include "util.h" | |
29 | ||
d21ed1ea LP |
30 | typedef enum BusTransport { |
31 | BUS_TRANSPORT_LOCAL, | |
32 | BUS_TRANSPORT_REMOTE, | |
de33fc62 | 33 | BUS_TRANSPORT_MACHINE, |
d21ed1ea LP |
34 | _BUS_TRANSPORT_MAX, |
35 | _BUS_TRANSPORT_INVALID = -1 | |
36 | } BusTransport; | |
37 | ||
9f6eb1cd KS |
38 | typedef int (*bus_property_set_t) (sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); |
39 | ||
ffc06c35 | 40 | struct bus_properties_map { |
9f6eb1cd KS |
41 | const char *member; |
42 | const char *signature; | |
43 | bus_property_set_t set; | |
44 | size_t offset; | |
ffc06c35 KS |
45 | }; |
46 | ||
9f6eb1cd KS |
47 | int bus_map_id128(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata); |
48 | ||
aae2b488 DH |
49 | int bus_message_map_all_properties(sd_bus *bus, |
50 | sd_bus_message *m, | |
51 | const struct bus_properties_map *map, | |
52 | void *userdata); | |
53 | int bus_message_map_properties_changed(sd_bus *bus, | |
54 | sd_bus_message *m, | |
55 | const struct bus_properties_map *map, | |
56 | void *userdata); | |
ffc06c35 KS |
57 | int bus_map_all_properties(sd_bus *bus, |
58 | const char *destination, | |
59 | const char *path, | |
9f6eb1cd KS |
60 | const struct bus_properties_map *map, |
61 | void *userdata); | |
ffc06c35 | 62 | |
6203e07a | 63 | int bus_async_unregister_and_exit(sd_event *e, sd_bus *bus, const char *name); |
40ca29a1 | 64 | |
37224a5f LP |
65 | typedef bool (*check_idle_t)(void *userdata); |
66 | ||
67 | 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); | |
718db961 | 68 | |
5fd38859 DH |
69 | int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error); |
70 | ||
718db961 | 71 | int bus_check_peercred(sd_bus *c); |
40ca29a1 | 72 | |
f3885791 | 73 | int bus_verify_polkit(sd_bus_message *call, int capability, const char *action, bool interactive, bool *_challenge, sd_bus_error *e); |
40ca29a1 | 74 | |
f3885791 | 75 | int bus_verify_polkit_async(sd_bus_message *call, int capability, const char *action, bool interactive, Hashmap **registry, sd_bus_error *error); |
36e34057 | 76 | void bus_verify_polkit_async_registry_free(Hashmap *registry); |
40ca29a1 | 77 | |
0f8bd8de | 78 | int bus_open_system_systemd(sd_bus **_bus); |
41dd15e4 | 79 | int bus_open_user_systemd(sd_bus **_bus); |
a1da8583 | 80 | |
d21ed1ea | 81 | int bus_open_transport(BusTransport transport, const char *host, bool user, sd_bus **bus); |
41dd15e4 | 82 | int bus_open_transport_systemd(BusTransport transport, const char *host, bool user, sd_bus **bus); |
d21ed1ea | 83 | |
9f6eb1cd | 84 | int bus_print_property(const char *name, sd_bus_message *property, bool all); |
27e72d6b | 85 | int bus_print_all_properties(sd_bus *bus, const char *dest, const char *path, char **filter, bool all); |
0c842e0a | 86 | |
ebcf1f97 | 87 | 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); |
e6504030 | 88 | |
718db961 LP |
89 | #define bus_property_get_usec ((sd_bus_property_get_t) NULL) |
90 | #define bus_property_set_usec ((sd_bus_property_set_t) NULL) | |
91 | ||
92 | assert_cc(sizeof(int) == sizeof(int32_t)); | |
93 | #define bus_property_get_int ((sd_bus_property_get_t) NULL) | |
94 | ||
95 | assert_cc(sizeof(unsigned) == sizeof(unsigned)); | |
96 | #define bus_property_get_unsigned ((sd_bus_property_get_t) NULL) | |
97 | ||
98 | /* On 64bit machines we can use the default serializer for size_t and | |
99 | * friends, otherwise we need to cast this manually */ | |
100 | #if __SIZEOF_SIZE_T__ == 8 | |
101 | #define bus_property_get_size ((sd_bus_property_get_t) NULL) | |
102 | #else | |
ebcf1f97 | 103 | 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); |
718db961 LP |
104 | #endif |
105 | ||
106 | #if __SIZEOF_LONG__ == 8 | |
107 | #define bus_property_get_long ((sd_bus_property_get_t) NULL) | |
108 | #define bus_property_get_ulong ((sd_bus_property_get_t) NULL) | |
109 | #else | |
ebcf1f97 LP |
110 | 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); |
111 | 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); | |
718db961 LP |
112 | #endif |
113 | ||
114 | /* uid_t and friends on Linux 32 bit. This means we can just use the | |
115 | * default serializer for 32bit unsigned, for serializing it, and map | |
116 | * it to NULL here */ | |
117 | assert_cc(sizeof(uid_t) == sizeof(uint32_t)); | |
118 | #define bus_property_get_uid ((sd_bus_property_get_t) NULL) | |
119 | ||
120 | assert_cc(sizeof(gid_t) == sizeof(uint32_t)); | |
121 | #define bus_property_get_gid ((sd_bus_property_get_t) NULL) | |
122 | ||
123 | assert_cc(sizeof(pid_t) == sizeof(uint32_t)); | |
124 | #define bus_property_get_pid ((sd_bus_property_get_t) NULL) | |
125 | ||
126 | assert_cc(sizeof(mode_t) == sizeof(uint32_t)); | |
127 | #define bus_property_get_mode ((sd_bus_property_get_t) NULL) | |
e6504030 | 128 | |
5b30bef8 | 129 | int bus_log_parse_error(int r); |
f459b602 MAP |
130 | int bus_log_create_error(int r); |
131 | ||
132 | typedef struct UnitInfo { | |
1238ee09 | 133 | const char *machine; |
f459b602 MAP |
134 | const char *id; |
135 | const char *description; | |
136 | const char *load_state; | |
137 | const char *active_state; | |
138 | const char *sub_state; | |
139 | const char *following; | |
140 | const char *unit_path; | |
141 | uint32_t job_id; | |
142 | const char *job_type; | |
143 | const char *job_path; | |
144 | } UnitInfo; | |
145 | ||
146 | int bus_parse_unit_info(sd_bus_message *message, UnitInfo *u); | |
5b30bef8 | 147 | |
24996861 LP |
148 | static inline void sd_bus_close_unrefp(sd_bus **bus) { |
149 | if (*bus) { | |
150 | sd_bus_flush(*bus); | |
151 | sd_bus_close(*bus); | |
152 | sd_bus_unref(*bus); | |
153 | } | |
154 | } | |
155 | ||
40ca29a1 | 156 | DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus*, sd_bus_unref); |
19befb2d | 157 | DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_slot*, sd_bus_slot_unref); |
40ca29a1 | 158 | DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message*, sd_bus_message_unref); |
5b12334d | 159 | DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_creds*, sd_bus_creds_unref); |
19befb2d | 160 | DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_track*, sd_bus_track_unref); |
40ca29a1 LP |
161 | |
162 | #define _cleanup_bus_unref_ _cleanup_(sd_bus_unrefp) | |
24996861 | 163 | #define _cleanup_bus_close_unref_ _cleanup_(sd_bus_close_unrefp) |
19befb2d | 164 | #define _cleanup_bus_slot_unref_ _cleanup_(sd_bus_slot_unrefp) |
40ca29a1 | 165 | #define _cleanup_bus_message_unref_ _cleanup_(sd_bus_message_unrefp) |
5b12334d | 166 | #define _cleanup_bus_creds_unref_ _cleanup_(sd_bus_creds_unrefp) |
19befb2d | 167 | #define _cleanup_bus_track_unref_ _cleanup_(sd_bus_slot_unrefp) |
c3350683 LP |
168 | #define _cleanup_bus_error_free_ _cleanup_(sd_bus_error_free) |
169 | ||
170 | #define BUS_DEFINE_PROPERTY_GET_ENUM(function, name, type) \ | |
171 | int function(sd_bus *bus, \ | |
172 | const char *path, \ | |
173 | const char *interface, \ | |
174 | const char *property, \ | |
175 | sd_bus_message *reply, \ | |
ebcf1f97 LP |
176 | void *userdata, \ |
177 | sd_bus_error *error) { \ | |
c3350683 LP |
178 | \ |
179 | const char *value; \ | |
180 | type *field = userdata; \ | |
181 | int r; \ | |
182 | \ | |
183 | assert(bus); \ | |
184 | assert(reply); \ | |
185 | assert(field); \ | |
186 | \ | |
187 | value = strempty(name##_to_string(*field)); \ | |
188 | \ | |
189 | r = sd_bus_message_append_basic(reply, 's', value); \ | |
190 | if (r < 0) \ | |
191 | return r; \ | |
192 | \ | |
193 | return 1; \ | |
194 | } \ | |
195 | struct __useless_struct_to_allow_trailing_semicolon__ | |
196 | ||
718db961 | 197 | #define BUS_PROPERTY_DUAL_TIMESTAMP(name, offset, flags) \ |
edb5dd18 LP |
198 | SD_BUS_PROPERTY(name, "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, realtime), (flags)), \ |
199 | SD_BUS_PROPERTY(name "Monotonic", "t", bus_property_get_usec, (offset) + offsetof(struct dual_timestamp, monotonic), (flags)) | |
ebcf1f97 LP |
200 | |
201 | int bus_maybe_reply_error(sd_bus_message *m, int r, sd_bus_error *error); | |
df31a6c0 LP |
202 | |
203 | int bus_append_unit_property_assignment(sd_bus_message *m, const char *assignment); |