src/shared/blockdev-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <sys/types.h>
   5
   6 #include "sd-device.h"
   7
   8 #include "macro.h"
   9 #include "stdio-util.h"
  10 #include "string-util.h"
  11
  12 #define SYS_BLOCK_PATH_MAX(suffix)                                      \
  13         (STRLEN("/sys/dev/block/") + DECIMAL_STR_MAX(dev_t) + 1 + DECIMAL_STR_MAX(dev_t) + strlen_ptr(suffix))
  14 #define xsprintf_sys_block_path(buf, suffix, devno)                     \
  15         xsprintf(buf, "/sys/dev/block/%u:%u%s", major(devno), minor(devno), strempty(suffix))
  16
  17 int block_device_is_whole_disk(sd_device *dev);
  18 int block_device_get_whole_disk(sd_device *dev, sd_device **ret);
  19
  20 int block_get_whole_disk(dev_t d, dev_t *ret);
  21 int block_get_originating(dev_t d, dev_t *ret);
  22
  23 int get_block_device_fd(int fd, dev_t *ret);
  24 int get_block_device(const char *path, dev_t *dev);
  25
  26 int get_block_device_harder_fd(int fd, dev_t *dev);
  27 int get_block_device_harder(const char *path, dev_t *dev);
  28
  29 int lock_whole_block_device(dev_t devt, int operation);
  30
  31 int blockdev_partscan_enabled(int fd);
  32
  33 int fd_is_encrypted(int fd);
  34 int path_is_encrypted(const char *path);
  35
  36 int fd_get_whole_disk(int fd, bool backing, dev_t *ret);
  37 int path_get_whole_disk(const char *path, bool backing, dev_t *ret);
  38
  39 int block_device_add_partition(int fd, const char *name, int nr, uint64_t start, uint64_t size);
  40 int block_device_remove_partition(int fd, const char *name, int nr);
  41 int block_device_resize_partition(int fd, int nr, uint64_t start, uint64_t size);
  42 int partition_enumerator_new(sd_device *dev, sd_device_enumerator **ret);
  43 int block_device_remove_all_partitions(sd_device *dev, int fd);
  44 int block_device_has_partitions(sd_device *dev);
  45 int blockdev_reread_partition_table(sd_device *dev);