src/libsystemd/sd-device/device-private.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <dirent.h>
   5 #include <inttypes.h>
   6 #include <stdbool.h>
   7 #include <sys/stat.h>
   8 #include <sys/types.h>
   9
  10 #include "sd-device.h"
  11
  12 #include "macro.h"
  13
  14 int device_new_from_mode_and_devnum(sd_device **ret, mode_t mode, dev_t devnum);
  15 int device_new_from_nulstr(sd_device **ret, char *nulstr, size_t len);
  16 int device_new_from_strv(sd_device **ret, char **strv);
  17
  18 int device_opendir(sd_device *device, const char *subdir, DIR **ret);
  19
  20 int device_get_property_bool(sd_device *device, const char *key);
  21 int device_get_property_int(sd_device *device, const char *key, int *ret);
  22 int device_get_sysattr_int(sd_device *device, const char *sysattr, int *ret_value);
  23 int device_get_sysattr_unsigned(sd_device *device, const char *sysattr, unsigned *ret_value);
  24 int device_get_sysattr_bool(sd_device *device, const char *sysattr);
  25 int device_get_device_id(sd_device *device, const char **ret);
  26 int device_get_devlink_priority(sd_device *device, int *ret);
  27 int device_get_devnode_mode(sd_device *device, mode_t *ret);
  28 int device_get_devnode_uid(sd_device *device, uid_t *ret);
  29 int device_get_devnode_gid(sd_device *device, gid_t *ret);
  30
  31 void device_clear_sysattr_cache(sd_device *device);
  32 int device_cache_sysattr_value(sd_device *device, const char *key, char *value);
  33 int device_get_cached_sysattr_value(sd_device *device, const char *key, const char **ret_value);
  34
  35 void device_seal(sd_device *device);
  36 void device_set_is_initialized(sd_device *device);
  37 void device_set_db_persist(sd_device *device);
  38 void device_set_devlink_priority(sd_device *device, int priority);
  39 int device_ensure_usec_initialized(sd_device *device, sd_device *device_old);
  40 int device_add_devlink(sd_device *device, const char *devlink);
  41 void device_remove_devlink(sd_device *device, const char *devlink);
  42 bool device_has_devlink(sd_device *device, const char *devlink);
  43 int device_add_property(sd_device *device, const char *property, const char *value);
  44 int device_add_propertyf(sd_device *device, const char *key, const char *format, ...) _printf_(3, 4);
  45 int device_add_tag(sd_device *device, const char *tag, bool both);
  46 void device_remove_tag(sd_device *device, const char *tag);
  47 void device_cleanup_tags(sd_device *device);
  48 void device_cleanup_devlinks(sd_device *device);
  49
  50 uint64_t device_get_properties_generation(sd_device *device);
  51 uint64_t device_get_tags_generation(sd_device *device);
  52 uint64_t device_get_devlinks_generation(sd_device *device);
  53
  54 int device_properties_prepare(sd_device *device);
  55 int device_get_properties_nulstr(sd_device *device, const char **ret_nulstr, size_t *ret_len);
  56 int device_get_properties_strv(sd_device *device, char ***ret);
  57
  58 int device_clone_with_db(sd_device *device, sd_device **ret);
  59
  60 int device_tag_index(sd_device *dev, sd_device *dev_old, bool add);
  61 int device_update_db(sd_device *device);
  62 int device_delete_db(sd_device *device);
  63 int device_read_db_internal_filename(sd_device *device, const char *filename); /* For fuzzer */
  64 int device_read_db_internal(sd_device *device, bool force);
  65 static inline int device_read_db(sd_device *device) {
  66         return device_read_db_internal(device, false);
  67 }
  68
  69 int device_read_uevent_file(sd_device *device);
  70
  71 int device_set_action(sd_device *device, sd_device_action_t a);
  72 sd_device_action_t device_action_from_string(const char *s) _pure_;
  73 const char *device_action_to_string(sd_device_action_t a) _const_;
  74 void dump_device_action_table(void);