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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
0ef6f454 LP |
2 | #pragma once |
3 | ||
57fa1d09 TG |
4 | /*** |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2008-2012 Kay Sievers <kay@vrfy.org> | |
8 | Copyright 2014 Tom Gundersen <teg@jklm.no> | |
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 | ||
57fa1d09 TG |
24 | #include "hashmap.h" |
25 | #include "set.h" | |
26 | ||
27 | struct sd_device { | |
28 | uint64_t n_ref; | |
29 | ||
30 | sd_device *parent; | |
31 | bool parent_set; /* no need to try to reload parent */ | |
32 | ||
33 | OrderedHashmap *properties; | |
34 | Iterator properties_iterator; | |
35 | uint64_t properties_generation; /* changes whenever the properties are changed */ | |
36 | uint64_t properties_iterator_generation; /* generation when iteration was started */ | |
37 | ||
13e785f7 | 38 | /* the subset of the properties that should be written to the db */ |
57fa1d09 TG |
39 | OrderedHashmap *properties_db; |
40 | ||
41 | Hashmap *sysattr_values; /* cached sysattr values */ | |
42 | ||
43 | Set *sysattrs; /* names of sysattrs */ | |
44 | Iterator sysattrs_iterator; | |
45 | bool sysattrs_read; /* don't try to re-read sysattrs once read */ | |
46 | ||
47 | Set *tags; | |
48 | Iterator tags_iterator; | |
49 | uint64_t tags_generation; /* changes whenever the tags are changed */ | |
50 | uint64_t tags_iterator_generation; /* generation when iteration was started */ | |
51 | bool property_tags_outdated; /* need to update TAGS= property */ | |
52 | ||
53 | Set *devlinks; | |
54 | Iterator devlinks_iterator; | |
55 | uint64_t devlinks_generation; /* changes whenever the devlinks are changed */ | |
56 | uint64_t devlinks_iterator_generation; /* generation when iteration was started */ | |
57 | bool property_devlinks_outdated; /* need to update DEVLINKS= property */ | |
58 | int devlink_priority; | |
59 | ||
60 | char **properties_strv; /* the properties hashmap as a strv */ | |
61 | uint8_t *properties_nulstr; /* the same as a nulstr */ | |
62 | size_t properties_nulstr_len; | |
63 | bool properties_buf_outdated; /* need to reread hashmap */ | |
64 | ||
65 | int watch_handle; | |
66 | ||
67 | char *syspath; | |
68 | const char *devpath; | |
69 | const char *sysnum; | |
70 | char *sysname; | |
71 | bool sysname_set; /* don't reread sysname */ | |
72 | ||
73 | char *devtype; | |
74 | int ifindex; | |
75 | char *devname; | |
76 | dev_t devnum; | |
77 | ||
78 | char *subsystem; | |
79 | bool subsystem_set; /* don't reread subsystem */ | |
de7e983e TG |
80 | char *driver_subsystem; /* only set for the 'drivers' subsystem */ |
81 | bool driver_subsystem_set; /* don't reread subsystem */ | |
57fa1d09 TG |
82 | char *driver; |
83 | bool driver_set; /* don't reread driver */ | |
84 | ||
85 | char *id_filename; | |
86 | ||
87 | bool is_initialized; | |
88 | uint64_t usec_initialized; | |
89 | ||
90 | mode_t devmode; | |
91 | uid_t devuid; | |
92 | gid_t devgid; | |
93 | ||
94 | bool uevent_loaded; /* don't reread uevent */ | |
95 | bool db_loaded; /* don't reread db */ | |
96 | ||
97 | bool sealed; /* don't read more information from uevent/db */ | |
98 | bool db_persist; /* don't clean up the db when switching from initrd to real root */ | |
99 | }; | |
100 | ||
101 | typedef enum DeviceAction { | |
102 | DEVICE_ACTION_ADD, | |
103 | DEVICE_ACTION_REMOVE, | |
104 | DEVICE_ACTION_CHANGE, | |
105 | DEVICE_ACTION_MOVE, | |
106 | DEVICE_ACTION_ONLINE, | |
107 | DEVICE_ACTION_OFFLINE, | |
9a39e1ce LP |
108 | DEVICE_ACTION_BIND, |
109 | DEVICE_ACTION_UNBIND, | |
57fa1d09 TG |
110 | _DEVICE_ACTION_MAX, |
111 | _DEVICE_ACTION_INVALID = -1, | |
112 | } DeviceAction; | |
113 | ||
114 | int device_new_aux(sd_device **ret); | |
115 | int device_add_property_aux(sd_device *device, const char *key, const char *value, bool db); | |
116 | int device_add_property_internal(sd_device *device, const char *key, const char *value); | |
117 | int device_read_uevent_file(sd_device *device); | |
107f2e25 | 118 | int device_read_db_aux(sd_device *device, bool force); |
57fa1d09 TG |
119 | |
120 | int device_set_syspath(sd_device *device, const char *_syspath, bool verify); | |
121 | int device_set_ifindex(sd_device *device, const char *ifindex); | |
122 | int device_set_devmode(sd_device *device, const char *devmode); | |
123 | int device_set_devname(sd_device *device, const char *_devname); | |
124 | int device_set_devtype(sd_device *device, const char *_devtype); | |
125 | int device_set_devnum(sd_device *device, const char *major, const char *minor); | |
126 | int device_set_subsystem(sd_device *device, const char *_subsystem); | |
127 | int device_set_driver(sd_device *device, const char *_driver); | |
128 | int device_set_usec_initialized(sd_device *device, const char *initialized); | |
129 | ||
130 | DeviceAction device_action_from_string(const char *s) _pure_; | |
131 | const char *device_action_to_string(DeviceAction a) _const_; |