#include <stdint.h>
#include <inttypes.h>
+#include <sys/stat.h>
#include <sys/statvfs.h>
#include <libsmartcols.h>
+#include <libmount.h>
#include "c.h"
+#include "list.h"
#include "debug.h"
#define LSBLK_DEBUG_INIT (1 << 1)
#define LSBLK_DEBUG_FILTER (1 << 2)
#define LSBLK_DEBUG_DEV (1 << 3)
-#define LSBLK_DEBUG_CXT (1 << 4)
+#define LSBLK_DEBUG_TREE (1 << 4)
+#define LSBLK_DEBUG_DEP (1 << 5)
#define LSBLK_DEBUG_ALL 0xFFFF
UL_DEBUG_DECLARE_MASK(lsblk);
struct lsblk {
struct libscols_table *table; /* output table */
struct libscols_column *sort_col;/* sort output by this column */
- int sort_id;
+
+ int sort_id; /* id of the sort column */
+ int tree_id; /* od of column used for tree */
+
+ int dedup_id;
+
const char *sysroot;
int flags; /* LSBLK_* */
unsigned int all_devices:1; /* print all devices, including empty */
unsigned int bytes:1; /* print SIZE in bytes */
unsigned int inverse:1; /* print inverse dependencies */
+ unsigned int merge:1; /* merge sub-trees */
unsigned int nodeps:1; /* don't print slaves/holders */
unsigned int scsi:1; /* print only device with HCTL (SCSI) */
unsigned int paths:1; /* print devnames with "/dev" prefix */
unsigned int sort_hidden:1; /* sort column not between output columns */
+ unsigned int dedup_hidden :1; /* deduplication column not between output columns */
unsigned int force_tree_order:1;/* sort lines by parent->tree relation */
+ unsigned int noempty:1; /* hide empty devices */
};
extern struct lsblk *lsblk; /* global handler */
-struct blkdev_cxt {
- struct blkdev_cxt *parent;
-
- struct libscols_line *scols_line;
- struct stat st;
-
- char *name; /* kernel name in /sys/block */
- char *dm_name; /* DM name (dm/block) */
-
- char *filename; /* path to device node */
-
- struct path_cxt *sysfs;
-
- int partition; /* is partition? TRUE/FALSE */
-
- int probed; /* already probed */
+struct lsblk_devprop {
+ /* udev / blkid based */
char *fstype; /* detected fs, NULL or "?" if cannot detect */
+ char *fsversion; /* filesystem version */
char *uuid; /* filesystem UUID (or stack uuid) */
char *ptuuid; /* partition table UUID */
char *pttype; /* partition table type */
char *serial; /* disk serial number */
char *model; /* disk model */
- char *mountpoint; /* device mountpoint */
+ /* lsblk specific (for --sysroot only) */
+ char *owner; /* user name */
+ char *group; /* group name */
+ char *mode; /* access mode in ls(1)-like notation */
+};
+
+/* Device dependence
+ *
+ * Note that the same device may be slave/holder for more another devices. It
+ * means we need to allocate list member rather than use @child directly.
+ */
+struct lsblk_devdep {
+ struct list_head ls_childs; /* item in parent->childs */
+ struct list_head ls_parents; /* item in child->parents */
+
+ struct lsblk_device *child;
+ struct lsblk_device *parent;
+};
+
+struct lsblk_device {
+ int refcount;
+
+ struct list_head childs; /* list with lsblk_devdep */
+ struct list_head parents;
+ struct list_head ls_roots; /* item in devtree->roots list */
+ struct list_head ls_devices; /* item in devtree->devices list */
+
+ struct lsblk_device *wholedisk; /* for partitions */
+
+ struct libscols_line *scols_line;
+
+ struct lsblk_devprop *properties;
+ struct stat st;
+
+ char *name; /* kernel name in /sys/block */
+ char *dm_name; /* DM name (dm/block) */
+
+ char *filename; /* path to device node */
+ char *dedupkey; /* de-duplication key */
+
+ struct path_cxt *sysfs;
+
+ struct libmnt_fs **fss; /* filesystems attached to the device */
+ size_t nfss; /* number of items in fss[] */
+
struct statvfs fsstat; /* statvfs() result */
int npartitions; /* # of partitions this device has */
* /sys/block/.../holders */
int nslaves; /* # of devices this device maps to */
int maj, min; /* devno */
- int discard; /* supports discard */
+
+ uint64_t discard_granularity; /* sunknown:-1, yes:1, not:0 */
uint64_t size; /* device size */
+ int removable; /* unknown:-1, yes:1, not:0 */
+
+ unsigned int is_mounted : 1,
+ is_swap : 1,
+ is_printed : 1,
+ udev_requested : 1,
+ blkid_requested : 1,
+ file_requested : 1;
+};
+
+#define device_is_partition(_x) ((_x)->wholedisk != NULL)
+
+/* Unfortunately, pktcdvd dependence on block device is not defined by
+ * slave/holder symlinks. The struct lsblk_devnomap represents one line in
+ * /sys/class/pktcdvd/device_map
+ */
+struct lsblk_devnomap {
+ dev_t slave; /* packet device devno */
+ dev_t holder; /* block device devno */
+
+ struct list_head ls_devnomap;
+};
+
+
+/*
+ * Note that lsblk tree uses bottom devices (devices without slaves) as root
+ * of the tree, and partitions are interpreted as a dependence too; it means:
+ * sda -> sda1 -> md0
+ *
+ * The flag 'is_inverted' turns the tree over (root is device without holders):
+ * md0 -> sda1 -> sda
+ */
+struct lsblk_devtree {
+ int refcount;
+
+ struct list_head roots; /* tree root devices */
+ struct list_head devices; /* all devices */
+ struct list_head pktcdvd_map; /* devnomap->ls_devnomap */
+
+ unsigned int is_inverse : 1, /* inverse tree */
+ pktcdvd_read : 1;
+};
- unsigned int is_mounted : 1;
+
+/*
+ * Generic iterator
+ */
+struct lsblk_iter {
+ struct list_head *p; /* current position */
+ struct list_head *head; /* start position */
+ int direction; /* LSBLK_ITER_{FOR,BACK}WARD */
};
+#define LSBLK_ITER_FORWARD 0
+#define LSBLK_ITER_BACKWARD 1
+
+#define IS_ITER_FORWARD(_i) ((_i)->direction == LSBLK_ITER_FORWARD)
+#define IS_ITER_BACKWARD(_i) ((_i)->direction == LSBLK_ITER_BACKWARD)
+
+#define LSBLK_ITER_INIT(itr, list) \
+ do { \
+ (itr)->p = IS_ITER_FORWARD(itr) ? \
+ (list)->next : (list)->prev; \
+ (itr)->head = (list); \
+ } while(0)
+
+#define LSBLK_ITER_ITERATE(itr, res, restype, member) \
+ do { \
+ res = list_entry((itr)->p, restype, member); \
+ (itr)->p = IS_ITER_FORWARD(itr) ? \
+ (itr)->p->next : (itr)->p->prev; \
+ } while(0)
+
+
+/* lsblk-mnt.c */
+extern void lsblk_mnt_init(void);
+extern void lsblk_mnt_deinit(void);
+
+extern void lsblk_device_free_filesystems(struct lsblk_device *dev);
+extern const char *lsblk_device_get_mountpoint(struct lsblk_device *dev);
+extern struct libmnt_fs **lsblk_device_get_filesystems(struct lsblk_device *dev, size_t *n);
+
+/* lsblk-properties.c */
+extern void lsblk_device_free_properties(struct lsblk_devprop *p);
+extern struct lsblk_devprop *lsblk_device_get_properties(struct lsblk_device *dev);
+extern void lsblk_properties_deinit(void);
+
+extern const char *lsblk_parttype_code_to_string(const char *code, const char *pttype);
+
+/* lsblk-devtree.c */
+void lsblk_reset_iter(struct lsblk_iter *itr, int direction);
+struct lsblk_device *lsblk_new_device(void);
+void lsblk_ref_device(struct lsblk_device *dev);
+void lsblk_unref_device(struct lsblk_device *dev);
+int lsblk_device_new_dependence(struct lsblk_device *parent, struct lsblk_device *child);
+int lsblk_device_has_child(struct lsblk_device *dev, struct lsblk_device *child);
+int lsblk_device_next_child(struct lsblk_device *dev,
+ struct lsblk_iter *itr,
+ struct lsblk_device **child);
+
+dev_t lsblk_devtree_pktcdvd_get_mate(struct lsblk_devtree *tr, dev_t devno, int is_slave);
+
+int lsblk_device_is_last_parent(struct lsblk_device *dev, struct lsblk_device *parent);
+int lsblk_device_next_parent(
+ struct lsblk_device *dev,
+ struct lsblk_iter *itr,
+ struct lsblk_device **parent);
+
+struct lsblk_devtree *lsblk_new_devtree(void);
+void lsblk_ref_devtree(struct lsblk_devtree *tr);
+void lsblk_unref_devtree(struct lsblk_devtree *tr);
+int lsblk_devtree_add_root(struct lsblk_devtree *tr, struct lsblk_device *dev);
+int lsblk_devtree_remove_root(struct lsblk_devtree *tr, struct lsblk_device *dev);
+int lsblk_devtree_next_root(struct lsblk_devtree *tr,
+ struct lsblk_iter *itr,
+ struct lsblk_device **dev);
+int lsblk_devtree_add_device(struct lsblk_devtree *tr, struct lsblk_device *dev);
+int lsblk_devtree_next_device(struct lsblk_devtree *tr,
+ struct lsblk_iter *itr,
+ struct lsblk_device **dev);
+int lsblk_devtree_has_device(struct lsblk_devtree *tr, struct lsblk_device *dev);
+struct lsblk_device *lsblk_devtree_get_device(struct lsblk_devtree *tr, const char *name);
+int lsblk_devtree_remove_device(struct lsblk_devtree *tr, struct lsblk_device *dev);
+int lsblk_devtree_deduplicate_devices(struct lsblk_devtree *tr);
+
#endif /* UTIL_LINUX_LSBLK_H */
projects / thirdparty / util-linux.git / blobdiff