1 /* SPDX-License-Identifier: LGPL-2.1-or-later */ 2 #ifndef foosddevicehfoo 3 #define foosddevicehfoo 4 5 /*** 6 systemd is free software; you can redistribute it and/or modify it 7 under the terms of the GNU Lesser General Public License as published by 8 the Free Software Foundation; either version 2.1 of the License, or 9 (at your option) any later version. 10 11 systemd is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public License 17 along with systemd; If not, see <http://www.gnu.org/licenses/>. 18 ***/ 19 20 #include <errno.h> 21 #include <inttypes.h> 22 #include <sys/stat.h> 23 #include <sys/sysmacros.h> 24 #include <sys/types.h> 25 26 #include "sd-event.h" 27 #include "sd-id128.h" 28 29 #include "_sd-common.h" 30 31 _SD_BEGIN_DECLARATIONS; 32 33 typedef struct sd_device sd_device; 34 typedef struct sd_device_enumerator sd_device_enumerator; 35 typedef struct sd_device_monitor sd_device_monitor; 36 37 typedef enum sd_device_action_t { 38 SD_DEVICE_ADD, 39 SD_DEVICE_REMOVE, 40 SD_DEVICE_CHANGE, 41 SD_DEVICE_MOVE, 42 SD_DEVICE_ONLINE, 43 SD_DEVICE_OFFLINE, 44 SD_DEVICE_BIND, 45 SD_DEVICE_UNBIND, 46 _SD_DEVICE_ACTION_MAX, 47 _SD_DEVICE_ACTION_INVALID = -EINVAL, 48 _SD_ENUM_FORCE_S64(DEVICE_ACTION), 49 } sd_device_action_t; 50 51 /* callback */ 52 53 typedef int (*sd_device_monitor_handler_t)(sd_device_monitor *m, sd_device *device, void *userdata); 54 55 /* device */ 56 57 sd_device *sd_device_ref(sd_device *device); 58 sd_device *sd_device_unref(sd_device *device); 59 60 int sd_device_new_from_syspath(sd_device **ret, const char *syspath); 61 int sd_device_new_from_devnum(sd_device **ret, char type, dev_t devnum); 62 int sd_device_new_from_subsystem_sysname(sd_device **ret, const char *subsystem, const char *sysname); 63 int sd_device_new_from_device_id(sd_device **ret, const char *id); 64 int sd_device_new_from_stat_rdev(sd_device **ret, const struct stat *st); 65 int sd_device_new_from_devname(sd_device **ret, const char *devname); 66 int sd_device_new_from_path(sd_device **ret, const char *path); 67 int sd_device_new_from_ifname(sd_device **ret, const char *ifname); 68 int sd_device_new_from_ifindex(sd_device **ret, int ifindex); 69 70 int sd_device_get_parent(sd_device *child, sd_device **ret); 71 int sd_device_get_parent_with_subsystem_devtype(sd_device *child, const char *subsystem, const char *devtype, sd_device **ret); 72 73 int sd_device_get_syspath(sd_device *device, const char **ret); 74 int sd_device_get_subsystem(sd_device *device, const char **ret); 75 int sd_device_get_devtype(sd_device *device, const char **ret); 76 int sd_device_get_devnum(sd_device *device, dev_t *devnum); 77 int sd_device_get_ifindex(sd_device *device, int *ifindex); 78 int sd_device_get_driver(sd_device *device, const char **ret); 79 int sd_device_get_devpath(sd_device *device, const char **ret); 80 int sd_device_get_devname(sd_device *device, const char **ret); 81 int sd_device_get_sysname(sd_device *device, const char **ret); 82 int sd_device_get_sysnum(sd_device *device, const char **ret); 83 int sd_device_get_action(sd_device *device, sd_device_action_t *ret); 84 int sd_device_get_seqnum(sd_device *device, uint64_t *ret); 85 int sd_device_get_diskseq(sd_device *device, uint64_t *ret); 86 87 int sd_device_get_is_initialized(sd_device *device); 88 int sd_device_get_usec_initialized(sd_device *device, uint64_t *usec); 89 int sd_device_get_usec_since_initialized(sd_device *device, uint64_t *usec); 90 91 const char *sd_device_get_tag_first(sd_device *device); 92 const char *sd_device_get_tag_next(sd_device *device); 93 const char *sd_device_get_current_tag_first(sd_device *device); 94 const char *sd_device_get_current_tag_next(sd_device *device); 95 const char *sd_device_get_devlink_first(sd_device *device); 96 const char *sd_device_get_devlink_next(sd_device *device); 97 const char *sd_device_get_property_first(sd_device *device, const char **value); 98 const char *sd_device_get_property_next(sd_device *device, const char **value); 99 const char *sd_device_get_sysattr_first(sd_device *device); 100 const char *sd_device_get_sysattr_next(sd_device *device); 101 102 int sd_device_has_tag(sd_device *device, const char *tag); 103 int sd_device_has_current_tag(sd_device *device, const char *tag); 104 int sd_device_get_property_value(sd_device *device, const char *key, const char **value); 105 int sd_device_get_trigger_uuid(sd_device *device, sd_id128_t *ret); 106 int sd_device_get_sysattr_value(sd_device *device, const char *sysattr, const char **_value); 107 108 int sd_device_set_sysattr_value(sd_device *device, const char *sysattr, const char *value); 109 int sd_device_set_sysattr_valuef(sd_device *device, const char *sysattr, const char *format, ...) _sd_printf_(3, 4); 110 int sd_device_trigger(sd_device *device, sd_device_action_t action); 111 int sd_device_trigger_with_uuid(sd_device *device, sd_device_action_t action, sd_id128_t *ret_uuid); 112 int sd_device_open(sd_device *device, int flags); 113 114 /* device enumerator */ 115 116 int sd_device_enumerator_new(sd_device_enumerator **ret); 117 sd_device_enumerator *sd_device_enumerator_ref(sd_device_enumerator *enumerator); 118 sd_device_enumerator *sd_device_enumerator_unref(sd_device_enumerator *enumerator); 119 120 sd_device *sd_device_enumerator_get_device_first(sd_device_enumerator *enumerator); 121 sd_device *sd_device_enumerator_get_device_next(sd_device_enumerator *enumerator); 122 sd_device *sd_device_enumerator_get_subsystem_first(sd_device_enumerator *enumerator); 123 sd_device *sd_device_enumerator_get_subsystem_next(sd_device_enumerator *enumerator); 124 125 int sd_device_enumerator_add_match_subsystem(sd_device_enumerator *enumerator, const char *subsystem, int match); 126 int sd_device_enumerator_add_match_sysattr(sd_device_enumerator *enumerator, const char *sysattr, const char *value, int match); 127 int sd_device_enumerator_add_match_property(sd_device_enumerator *enumerator, const char *property, const char *value); 128 int sd_device_enumerator_add_match_sysname(sd_device_enumerator *enumerator, const char *sysname); 129 int sd_device_enumerator_add_nomatch_sysname(sd_device_enumerator *enumerator, const char *sysname); 130 int sd_device_enumerator_add_match_tag(sd_device_enumerator *enumerator, const char *tag); 131 int sd_device_enumerator_add_match_parent(sd_device_enumerator *enumerator, sd_device *parent); 132 int sd_device_enumerator_allow_uninitialized(sd_device_enumerator *enumerator); 133 134 /* device monitor */ 135 136 int sd_device_monitor_new(sd_device_monitor **ret); 137 sd_device_monitor *sd_device_monitor_ref(sd_device_monitor *m); 138 sd_device_monitor *sd_device_monitor_unref(sd_device_monitor *m); 139 140 int sd_device_monitor_set_receive_buffer_size(sd_device_monitor *m, size_t size); 141 int sd_device_monitor_attach_event(sd_device_monitor *m, sd_event *event); 142 int sd_device_monitor_detach_event(sd_device_monitor *m); 143 sd_event *sd_device_monitor_get_event(sd_device_monitor *m); 144 sd_event_source *sd_device_monitor_get_event_source(sd_device_monitor *m); 145 int sd_device_monitor_start(sd_device_monitor *m, sd_device_monitor_handler_t callback, void *userdata); 146 int sd_device_monitor_stop(sd_device_monitor *m); 147 148 int sd_device_monitor_filter_add_match_subsystem_devtype(sd_device_monitor *m, const char *subsystem, const char *devtype); 149 int sd_device_monitor_filter_add_match_tag(sd_device_monitor *m, const char *tag); 150 int sd_device_monitor_filter_add_match_sysattr(sd_device_monitor *m, const char *sysattr, const char *value, int match); 151 int sd_device_monitor_filter_add_match_parent(sd_device_monitor *m, sd_device *device, int match); 152 int sd_device_monitor_filter_update(sd_device_monitor *m); 153 int sd_device_monitor_filter_remove(sd_device_monitor *m); 154 155 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device, sd_device_unref); 156 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device_enumerator, sd_device_enumerator_unref); 157 _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_device_monitor, sd_device_monitor_unref); 158 159 _SD_END_DECLARATIONS; 160 161 #endif 162