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-rw-r--r--libfdisk/src/fdiskP.h520
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diff --git a/libfdisk/src/fdiskP.h b/libfdisk/src/fdiskP.h
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+++ b/libfdisk/src/fdiskP.h
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+/*
+ * fdiskP.h - private library header file
+ *
+ * Copyright (C) 2012 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#ifndef _LIBFDISK_PRIVATE_H
+#define _LIBFDISK_PRIVATE_H
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <uuid.h>
+
+#include "c.h"
+#include "libfdisk.h"
+
+#include "list.h"
+#include "debug.h"
+#include <stdio.h>
+#include <stdarg.h>
+
+/*
+ * Debug
+ */
+#define LIBFDISK_DEBUG_HELP (1 << 0)
+#define LIBFDISK_DEBUG_INIT (1 << 1)
+#define LIBFDISK_DEBUG_CXT (1 << 2)
+#define LIBFDISK_DEBUG_LABEL (1 << 3)
+#define LIBFDISK_DEBUG_ASK (1 << 4)
+#define LIBFDISK_DEBUG_PART (1 << 6)
+#define LIBFDISK_DEBUG_PARTTYPE (1 << 7)
+#define LIBFDISK_DEBUG_TAB (1 << 8)
+#define LIBFDISK_DEBUG_SCRIPT (1 << 9)
+#define LIBFDISK_DEBUG_WIPE (1 << 10)
+#define LIBFDISK_DEBUG_ITEM (1 << 11)
+#define LIBFDISK_DEBUG_ALL 0xFFFF
+
+UL_DEBUG_DECLARE_MASK(libfdisk);
+#define DBG(m, x) __UL_DBG(libfdisk, LIBFDISK_DEBUG_, m, x)
+#define ON_DBG(m, x) __UL_DBG_CALL(libfdisk, LIBFDISK_DEBUG_, m, x)
+#define DBG_FLUSH __UL_DBG_FLUSH(libfdisk, LIBFDISK_DEBUG_)
+
+#define UL_DEBUG_CURRENT_MASK UL_DEBUG_MASK(libfdisk)
+#include "debugobj.h"
+
+/*
+ * NLS -- the library has to be independent on main program, so define
+ * UL_TEXTDOMAIN_EXPLICIT before you include nls.h.
+ *
+ * Now we use util-linux.po (=PACKAGE), rather than maintain the texts
+ * in the separate libfdisk.po file.
+ */
+#define LIBFDISK_TEXTDOMAIN PACKAGE
+#define UL_TEXTDOMAIN_EXPLICIT LIBFDISK_TEXTDOMAIN
+#include "nls.h"
+
+
+#ifdef TEST_PROGRAM
+struct fdisk_test {
+ const char *name;
+ int (*body)(struct fdisk_test *ts, int argc, char *argv[]);
+ const char *usage;
+};
+
+/* test.c */
+extern int fdisk_run_test(struct fdisk_test *tests, int argc, char *argv[]);
+#endif
+
+#define FDISK_GPT_NPARTITIONS_DEFAULT 128
+
+/*
+ * Generic iterator
+ */
+struct fdisk_iter {
+ struct list_head *p; /* current position */
+ struct list_head *head; /* start position */
+ int direction; /* FDISK_ITER_{FOR,BACK}WARD */
+};
+
+#define IS_ITER_FORWARD(_i) ((_i)->direction == FDISK_ITER_FORWARD)
+#define IS_ITER_BACKWARD(_i) ((_i)->direction == FDISK_ITER_BACKWARD)
+
+#define FDISK_ITER_INIT(itr, list) \
+ do { \
+ (itr)->p = IS_ITER_FORWARD(itr) ? \
+ (list)->next : (list)->prev; \
+ (itr)->head = (list); \
+ } while(0)
+
+#define FDISK_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)
+
+/*
+ * Partition types
+ */
+struct fdisk_parttype {
+ unsigned int code; /* type as number or zero */
+ char *name; /* description */
+ char *typestr; /* type as string or NULL */
+
+ unsigned int flags; /* FDISK_PARTTYPE_* flags */
+ int refcount; /* reference counter for allocated types */
+};
+
+enum {
+ FDISK_PARTTYPE_UNKNOWN = (1 << 1),
+ FDISK_PARTTYPE_INVISIBLE = (1 << 2),
+ FDISK_PARTTYPE_ALLOCATED = (1 << 3)
+};
+
+#define fdisk_parttype_is_invisible(_x) ((_x) && ((_x)->flags & FDISK_PARTTYPE_INVISIBLE))
+#define fdisk_parttype_is_allocated(_x) ((_x) && ((_x)->flags & FDISK_PARTTYPE_ALLOCATED))
+
+struct fdisk_partition {
+ int refcount; /* reference counter */
+
+ size_t partno; /* partition number */
+ size_t parent_partno; /* for logical partitions */
+
+ fdisk_sector_t start; /* first sectors */
+ fdisk_sector_t size; /* size in sectors */
+
+ int movestart; /* FDISK_MOVE_* (scripts only) */
+ int resize; /* FDISK_RESIZE_* (scripts only) */
+
+ char *name; /* partition name */
+ char *uuid; /* partition UUID */
+ char *attrs; /* partition flags/attributes converted to string */
+ struct fdisk_parttype *type; /* partition type */
+
+ char *fstype; /* filesystem type */
+ char *fsuuid; /* filesystem uuid */
+ char *fslabel; /* filesystem label */
+
+ struct list_head parts; /* list of partitions */
+
+ /* extra fields for partition_to_string() */
+ char start_post; /* start postfix (e.g. '+') */
+ char end_post; /* end postfix */
+ char size_post; /* size postfix */
+
+ uint64_t fsize; /* bsd junk */
+ uint64_t bsize;
+ uint64_t cpg;
+
+ char *start_chs; /* start C/H/S in string */
+ char *end_chs; /* end C/H/S in string */
+
+ unsigned int boot; /* MBR: bootable */
+
+ unsigned int container : 1, /* container partition (e.g. extended partition) */
+ end_follow_default : 1, /* use default end */
+ freespace : 1, /* this is free space */
+ partno_follow_default : 1, /* use default partno */
+ size_explicit : 1, /* don't align the size */
+ start_follow_default : 1, /* use default start */
+ fs_probed : 1, /* already probed by blkid */
+ used : 1, /* partition already used */
+ wholedisk : 1; /* special system partition */
+};
+
+enum {
+ FDISK_MOVE_NONE = 0,
+ FDISK_MOVE_DOWN = -1,
+ FDISK_MOVE_UP = 1
+};
+
+enum {
+ FDISK_RESIZE_NONE = 0,
+ FDISK_RESIZE_REDUCE = -1,
+ FDISK_RESIZE_ENLARGE = 1
+};
+
+#define FDISK_INIT_UNDEF(_x) ((_x) = (__typeof__(_x)) -1)
+#define FDISK_IS_UNDEF(_x) ((_x) == (__typeof__(_x)) -1)
+
+struct fdisk_table {
+ struct list_head parts; /* partitions */
+ int refcount;
+ size_t nents; /* number of partitions */
+};
+
+/*
+ * Legacy CHS based geometry
+ */
+struct fdisk_geometry {
+ unsigned int heads;
+ fdisk_sector_t sectors;
+ fdisk_sector_t cylinders;
+};
+
+/*
+ * Label specific operations
+ */
+struct fdisk_label_operations {
+ /* probe disk label */
+ int (*probe)(struct fdisk_context *cxt);
+ /* write in-memory changes to disk */
+ int (*write)(struct fdisk_context *cxt);
+ /* verify the partition table */
+ int (*verify)(struct fdisk_context *cxt);
+ /* create new disk label */
+ int (*create)(struct fdisk_context *cxt);
+ /* returns offset and size of the 'n' part of the PT */
+ int (*locate)(struct fdisk_context *cxt, int n, const char **name,
+ uint64_t *offset, size_t *size);
+ /* reorder partitions */
+ int (*reorder)(struct fdisk_context *cxt);
+ /* get details from label */
+ int (*get_item)(struct fdisk_context *cxt, struct fdisk_labelitem *item);
+ /* set disk label ID */
+ int (*set_id)(struct fdisk_context *cxt);
+
+
+ /* new partition */
+ int (*add_part)(struct fdisk_context *cxt, struct fdisk_partition *pa,
+ size_t *partno);
+ /* delete partition */
+ int (*del_part)(struct fdisk_context *cxt, size_t partnum);
+
+ /* fill in partition struct */
+ int (*get_part)(struct fdisk_context *cxt, size_t n,
+ struct fdisk_partition *pa);
+ /* modify partition */
+ int (*set_part)(struct fdisk_context *cxt, size_t n,
+ struct fdisk_partition *pa);
+
+ /* return state of the partition */
+ int (*part_is_used)(struct fdisk_context *cxt, size_t partnum);
+
+ int (*part_toggle_flag)(struct fdisk_context *cxt, size_t i, unsigned long flag);
+
+ /* refresh alignment setting */
+ int (*reset_alignment)(struct fdisk_context *cxt);
+
+ /* free in-memory label stuff */
+ void (*free)(struct fdisk_label *lb);
+
+ /* deinit in-memory label stuff */
+ void (*deinit)(struct fdisk_label *lb);
+};
+
+/*
+ * The fields describes how to display libfdisk_partition
+ */
+struct fdisk_field {
+ int id; /* FDISK_FIELD_* */
+ const char *name; /* field name */
+ double width; /* field width (compatible with libsmartcols whint) */
+ int flags; /* FDISK_FIELDFL_* */
+};
+
+/* note that the defaults is to display a column always */
+enum {
+ FDISK_FIELDFL_DETAIL = (1 << 1), /* only display if fdisk_is_details() */
+ FDISK_FIELDFL_EYECANDY = (1 << 2), /* don't display if fdisk_is_details() */
+ FDISK_FIELDFL_NUMBER = (1 << 3), /* column display numbers */
+};
+
+/*
+ * Generic label
+ */
+struct fdisk_label {
+ const char *name; /* label name */
+ enum fdisk_labeltype id; /* FDISK_DISKLABEL_* */
+ struct fdisk_parttype *parttypes; /* supported partitions types */
+ size_t nparttypes; /* number of items in parttypes[] */
+
+ size_t nparts_max; /* maximal number of partitions */
+ size_t nparts_cur; /* number of currently used partitions */
+
+ int flags; /* FDISK_LABEL_FL_* flags */
+
+ struct fdisk_geometry geom_min; /* minimal geometry */
+ struct fdisk_geometry geom_max; /* maximal geometry */
+
+ unsigned int changed:1, /* label has been modified */
+ disabled:1; /* this driver is disabled at all */
+
+ const struct fdisk_field *fields; /* all possible fields */
+ size_t nfields;
+
+ const struct fdisk_label_operations *op;
+};
+
+
+/* label driver flags */
+enum {
+ FDISK_LABEL_FL_REQUIRE_GEOMETRY = (1 << 2),
+ FDISK_LABEL_FL_INCHARS_PARTNO = (1 << 3)
+};
+
+/* label allocators */
+extern struct fdisk_label *fdisk_new_gpt_label(struct fdisk_context *cxt);
+extern struct fdisk_label *fdisk_new_dos_label(struct fdisk_context *cxt);
+extern struct fdisk_label *fdisk_new_bsd_label(struct fdisk_context *cxt);
+extern struct fdisk_label *fdisk_new_sgi_label(struct fdisk_context *cxt);
+extern struct fdisk_label *fdisk_new_sun_label(struct fdisk_context *cxt);
+
+
+struct ask_menuitem {
+ char key;
+ const char *name;
+ const char *desc;
+
+ struct ask_menuitem *next;
+};
+
+/* fdisk dialog -- note that nothing from this stuff will be directly exported,
+ * we will have get/set() function for everything.
+ */
+struct fdisk_ask {
+ int type; /* FDISK_ASKTYPE_* */
+ char *query;
+
+ int refcount;
+
+ union {
+ /* FDISK_ASKTYPE_{NUMBER,OFFSET} */
+ struct ask_number {
+ uint64_t hig; /* high limit */
+ uint64_t low; /* low limit */
+ uint64_t dfl; /* default */
+ uint64_t result;
+ uint64_t base; /* for relative results */
+ uint64_t unit; /* unit for offsets */
+ const char *range; /* by library generated list */
+ unsigned int relative :1,
+ inchars :1,
+ wrap_negative :1;
+ } num;
+ /* FDISK_ASKTYPE_{WARN,WARNX,..} */
+ struct ask_print {
+ const char *mesg;
+ int errnum; /* errno */
+ } print;
+ /* FDISK_ASKTYPE_YESNO */
+ struct ask_yesno {
+ int result; /* TRUE or FALSE */
+ } yesno;
+ /* FDISK_ASKTYPE_STRING */
+ struct ask_string {
+ char *result; /* allocated */
+ } str;
+ /* FDISK_ASKTYPE_MENU */
+ struct ask_menu {
+ int dfl; /* default menu item */
+ int result;
+ struct ask_menuitem *first;
+ } menu;
+ } data;
+};
+
+struct fdisk_context {
+ int dev_fd; /* device descriptor */
+ char *dev_path; /* device path */
+ char *dev_model; /* on linux /sys/block/<name>/device/model or NULL */
+ struct stat dev_st; /* stat(2) result */
+
+ int refcount;
+
+ unsigned char *firstsector; /* buffer with master boot record */
+ unsigned long firstsector_bufsz;
+
+
+ /* topology */
+ unsigned long io_size; /* I/O size used by fdisk */
+ unsigned long optimal_io_size; /* optional I/O returned by device */
+ unsigned long min_io_size; /* minimal I/O size */
+ unsigned long phy_sector_size; /* physical size */
+ unsigned long sector_size; /* logical size */
+ unsigned long alignment_offset;
+
+ unsigned int readonly : 1, /* don't write to the device */
+ display_in_cyl_units : 1, /* for obscure labels */
+ display_details : 1, /* expert display mode */
+ protect_bootbits : 1, /* don't zeroize first sector */
+ pt_collision : 1, /* another PT detected by libblkid */
+ no_disalogs : 1, /* disable dialog-driven partititoning */
+ dev_model_probed : 1, /* tried to read from sys */
+ listonly : 1; /* list partition, nothing else */
+
+ char *collision; /* name of already existing FS/PT */
+ struct list_head wipes; /* list of areas to wipe before write */
+
+ int sizeunit; /* SIZE fields, FDISK_SIZEUNIT_* */
+
+ /* alignment */
+ unsigned long grain; /* alignment unit */
+ fdisk_sector_t first_lba; /* recommended begin of the first partition */
+ fdisk_sector_t last_lba; /* recommended end of last partition */
+
+ /* geometry */
+ fdisk_sector_t total_sectors; /* in logical sectors */
+ struct fdisk_geometry geom;
+
+ /* user setting to overwrite device default */
+ struct fdisk_geometry user_geom;
+ unsigned long user_pyh_sector;
+ unsigned long user_log_sector;
+ unsigned long user_grain;
+
+ struct fdisk_label *label; /* current label, pointer to labels[] */
+
+ size_t nlabels; /* number of initialized label drivers */
+ struct fdisk_label *labels[8]; /* all supported labels,
+ * FIXME: use any enum rather than hardcoded number */
+
+ int (*ask_cb)(struct fdisk_context *, struct fdisk_ask *, void *); /* fdisk dialogs callback */
+ void *ask_data; /* ask_cb() data */
+
+ struct fdisk_context *parent; /* for nested PT */
+ struct fdisk_script *script; /* what we want to follow */
+};
+
+/* table */
+enum {
+ FDISK_DIFF_UNCHANGED = 0,
+ FDISK_DIFF_REMOVED,
+ FDISK_DIFF_ADDED,
+ FDISK_DIFF_MOVED,
+ FDISK_DIFF_RESIZED
+};
+extern int fdisk_diff_tables(struct fdisk_table *a, struct fdisk_table *b,
+ struct fdisk_iter *itr,
+ struct fdisk_partition **res, int *change);
+extern void fdisk_debug_print_table(struct fdisk_table *tb);
+
+
+/* context.c */
+extern int __fdisk_switch_label(struct fdisk_context *cxt,
+ struct fdisk_label *lb);
+extern int fdisk_missing_geometry(struct fdisk_context *cxt);
+
+/* alignment.c */
+fdisk_sector_t fdisk_scround(struct fdisk_context *cxt, fdisk_sector_t num);
+fdisk_sector_t fdisk_cround(struct fdisk_context *cxt, fdisk_sector_t num);
+
+extern int fdisk_discover_geometry(struct fdisk_context *cxt);
+extern int fdisk_discover_topology(struct fdisk_context *cxt);
+
+extern int fdisk_has_user_device_geometry(struct fdisk_context *cxt);
+extern int fdisk_apply_user_device_properties(struct fdisk_context *cxt);
+extern int fdisk_apply_label_device_properties(struct fdisk_context *cxt);
+extern void fdisk_zeroize_device_properties(struct fdisk_context *cxt);
+
+/* utils.c */
+extern int fdisk_init_firstsector_buffer(struct fdisk_context *cxt,
+ unsigned int protect_off, unsigned int protect_size);
+extern int fdisk_read_firstsector(struct fdisk_context *cxt);
+
+/* label.c */
+extern int fdisk_probe_labels(struct fdisk_context *cxt);
+extern void fdisk_deinit_label(struct fdisk_label *lb);
+
+struct fdisk_labelitem {
+ int refcount; /* reference counter */
+ int id; /* <label>_ITEM_* */
+ char type; /* s = string, j = uint64 */
+ const char *name; /* human readable name */
+
+ union {
+ char *str;
+ uint64_t num64;
+ } data;
+};
+
+/* Use only internally for non-allocated items, never use
+ * refcouting for such items!
+ */
+#define FDISK_LABELITEM_INIT { .type = 0, .refcount = 0 }
+
+/* ask.c */
+struct fdisk_ask *fdisk_new_ask(void);
+void fdisk_reset_ask(struct fdisk_ask *ask);
+int fdisk_ask_set_query(struct fdisk_ask *ask, const char *str);
+int fdisk_ask_set_type(struct fdisk_ask *ask, int type);
+int fdisk_do_ask(struct fdisk_context *cxt, struct fdisk_ask *ask);
+int fdisk_ask_number_set_range(struct fdisk_ask *ask, const char *range);
+int fdisk_ask_number_set_default(struct fdisk_ask *ask, uint64_t dflt);
+int fdisk_ask_number_set_low(struct fdisk_ask *ask, uint64_t low);
+int fdisk_ask_number_set_high(struct fdisk_ask *ask, uint64_t high);
+int fdisk_ask_number_set_base(struct fdisk_ask *ask, uint64_t base);
+int fdisk_ask_number_set_unit(struct fdisk_ask *ask, uint64_t unit);
+int fdisk_ask_number_is_relative(struct fdisk_ask *ask);
+int fdisk_ask_number_set_wrap_negative(struct fdisk_ask *ask, int wrap_negative);
+int fdisk_ask_menu_set_default(struct fdisk_ask *ask, int dfl);
+int fdisk_ask_menu_add_item(struct fdisk_ask *ask, int key,
+ const char *name, const char *desc);
+int fdisk_ask_print_set_errno(struct fdisk_ask *ask, int errnum);
+int fdisk_ask_print_set_mesg(struct fdisk_ask *ask, const char *mesg);
+int fdisk_info_new_partition(
+ struct fdisk_context *cxt,
+ int num, fdisk_sector_t start, fdisk_sector_t stop,
+ struct fdisk_parttype *t);
+
+/* dos.c */
+extern struct dos_partition *fdisk_dos_get_partition(
+ struct fdisk_context *cxt,
+ size_t i);
+
+/* wipe.c */
+void fdisk_free_wipe_areas(struct fdisk_context *cxt);
+int fdisk_set_wipe_area(struct fdisk_context *cxt, uint64_t start, uint64_t size, int enable);
+int fdisk_do_wipe(struct fdisk_context *cxt);
+int fdisk_has_wipe_area(struct fdisk_context *cxt, uint64_t start, uint64_t size);
+int fdisk_check_collisions(struct fdisk_context *cxt);
+
+#endif /* _LIBFDISK_PRIVATE_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-21 13:06:38 +0000