Adding upstream version 2.36.1.upstream/2.36.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1112 insertions, 0 deletions

diff --git a/disk-utils/fdisk-menu.c b/disk-utils/fdisk-menu.c
new file mode 100644
index 0000000..9f09eea
--- /dev/null
+++ b/disk-utils/fdisk-menu.c
@@ -0,0 +1,1112 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdint.h>
+
+#include "c.h"
+#include "rpmatch.h"
+#include "fdisk.h"
+#include "pt-sun.h"
+#include "pt-mbr.h"
+
+struct menu_entry {
+	const char	key;			/* command key */
+	const char	*title;			/* help string */
+	unsigned int	normal : 1,		/* normal mode */
+			expert : 1,		/* expert mode */
+			hidden : 1;		/* be sensitive for this key,
+						   but don't print it in help */
+
+	enum fdisk_labeltype	label;		/* only for this label */
+	int                     exclude;    /* all labels except these */
+	enum fdisk_labeltype	parent;		/* for nested PT */
+};
+
+#define IS_MENU_SEP(e)	((e)->key == '-')
+#define IS_MENU_HID(e)	((e)->hidden)
+
+struct menu {
+	enum fdisk_labeltype	label;		/* only for this label */
+	int                     exclude;    /* all labels except these */
+
+	unsigned int		nonested : 1;	/* don't make this menu active in nested PT */
+
+	int (*callback)(struct fdisk_context **,
+			const struct menu *,
+			const struct menu_entry *);
+
+	struct menu_entry	entries[];	/* NULL terminated array */
+};
+
+struct menu_context {
+	size_t		menu_idx;		/* the current menu */
+	size_t		entry_idx;		/* index with in the current menu */
+};
+
+#define MENU_CXT_EMPTY	{ 0, 0 }
+#define DECLARE_MENU_CB(x) \
+	static int x(struct fdisk_context **, \
+		     const struct menu *, \
+		     const struct menu_entry *)
+
+DECLARE_MENU_CB(gpt_menu_cb);
+DECLARE_MENU_CB(sun_menu_cb);
+DECLARE_MENU_CB(sgi_menu_cb);
+DECLARE_MENU_CB(geo_menu_cb);
+DECLARE_MENU_CB(dos_menu_cb);
+DECLARE_MENU_CB(bsd_menu_cb);
+DECLARE_MENU_CB(createlabel_menu_cb);
+DECLARE_MENU_CB(generic_menu_cb);
+
+/*
+ * Menu entry macros:
+ *	MENU_X*    expert mode only
+ *      MENU_B*    both -- expert + normal mode
+ *
+ *      *_E  exclude this label
+ *      *_H  hidden
+ *      *_L  only for this label
+ */
+
+/* separator */
+#define MENU_SEP(t)		{ .title = t, .key = '-', .normal = 1 }
+#define MENU_XSEP(t)		{ .title = t, .key = '-', .expert = 1 }
+#define MENU_BSEP(t)		{ .title = t, .key = '-', .expert = 1, .normal = 1 }
+
+/* entry */
+#define MENU_ENT(k, t)		{ .title = t, .key = k, .normal = 1 }
+#define MENU_ENT_E(k, t, l)	{ .title = t, .key = k, .normal = 1, .exclude = l }
+#define MENU_ENT_L(k, t, l)	{ .title = t, .key = k, .normal = 1, .label = l }
+
+#define MENU_XENT(k, t)		{ .title = t, .key = k, .expert = 1 }
+#define MENU_XENT_H(k, t)	{ .title = t, .key = k, .expert = 1, .hidden = 1 }
+
+#define MENU_BENT(k, t)		{ .title = t, .key = k, .expert = 1, .normal = 1 }
+#define MENU_BENT_E(k, t, l)	{ .title = t, .key = k, .expert = 1, .normal = 1, .exclude = l }
+
+#define MENU_ENT_NEST(k, t, l, p)	{ .title = t, .key = k, .normal = 1, .label = l, .parent = p }
+#define MENU_BENT_NEST_H(k, t, l, p)	{ .title = t, .key = k, .expert = 1, .normal = 1, .label = l, .parent = p, .hidden = 1 }
+
+/* Generic menu */
+static const struct menu menu_generic = {
+	.callback	= generic_menu_cb,
+	.entries	= {
+		MENU_BSEP(N_("Generic")),
+		MENU_ENT  ('d', N_("delete a partition")),
+		MENU_ENT  ('F', N_("list free unpartitioned space")),
+		MENU_ENT  ('l', N_("list known partition types")),
+		MENU_ENT  ('n', N_("add a new partition")),
+		MENU_BENT ('p', N_("print the partition table")),
+		MENU_ENT  ('t', N_("change a partition type")),
+		MENU_BENT_E('v', N_("verify the partition table"), FDISK_DISKLABEL_BSD),
+		MENU_ENT  ('i', N_("print information about a partition")),
+
+		MENU_XENT('d', N_("print the raw data of the first sector from the device")),
+		MENU_XENT('D', N_("print the raw data of the disklabel from the device")),
+		MENU_XENT('f', N_("fix partitions order")),
+
+		MENU_SEP(N_("Misc")),
+		MENU_BENT ('m', N_("print this menu")),
+		MENU_ENT_E('u', N_("change display/entry units"), FDISK_DISKLABEL_GPT),
+		MENU_ENT_E('x', N_("extra functionality (experts only)"), FDISK_DISKLABEL_BSD),
+
+		MENU_SEP(N_("Script")),
+		MENU_ENT  ('I', N_("load disk layout from sfdisk script file")),
+		MENU_ENT  ('O', N_("dump disk layout to sfdisk script file")),
+
+		MENU_BSEP(N_("Save & Exit")),
+		MENU_ENT_E('w', N_("write table to disk and exit"), FDISK_DISKLABEL_BSD),
+		MENU_ENT_L('w', N_("write table to disk"), FDISK_DISKLABEL_BSD),
+		MENU_BENT ('q', N_("quit without saving changes")),
+		MENU_XENT ('r', N_("return to main menu")),
+
+		MENU_ENT_NEST('r', N_("return from BSD to DOS"), FDISK_DISKLABEL_BSD, FDISK_DISKLABEL_DOS),
+
+		MENU_ENT_NEST('r', N_("return from protective/hybrid MBR to GPT"), FDISK_DISKLABEL_DOS, FDISK_DISKLABEL_GPT),
+
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_createlabel = {
+	.callback = createlabel_menu_cb,
+	.exclude = FDISK_DISKLABEL_BSD,
+	.nonested = 1,
+	.entries = {
+		MENU_SEP(N_("Create a new label")),
+		MENU_ENT('g', N_("create a new empty GPT partition table")),
+		MENU_ENT('G', N_("create a new empty SGI (IRIX) partition table")),
+		MENU_ENT('o', N_("create a new empty DOS partition table")),
+		MENU_ENT('s', N_("create a new empty Sun partition table")),
+
+		/* backward compatibility -- be sensitive to 'g', but don't
+		 * print it in the expert menu */
+		MENU_XENT_H('g', N_("create an IRIX (SGI) partition table")),
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_geo = {
+	.callback = geo_menu_cb,
+	.exclude = FDISK_DISKLABEL_GPT | FDISK_DISKLABEL_BSD,
+	.entries = {
+		MENU_XSEP(N_("Geometry (for the current label)")),
+		MENU_XENT('c', N_("change number of cylinders")),
+		MENU_XENT('h', N_("change number of heads")),
+		MENU_XENT('s', N_("change number of sectors/track")),
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_gpt = {
+	.callback = gpt_menu_cb,
+	.label = FDISK_DISKLABEL_GPT,
+	.entries = {
+		MENU_BSEP(N_("GPT")),
+		MENU_XENT('i', N_("change disk GUID")),
+		MENU_XENT('n', N_("change partition name")),
+		MENU_XENT('u', N_("change partition UUID")),
+		MENU_XENT('l', N_("change table length")),
+		MENU_BENT('M', N_("enter protective/hybrid MBR")),
+
+		MENU_XSEP(""),
+		MENU_XENT('A', N_("toggle the legacy BIOS bootable flag")),
+		MENU_XENT('B', N_("toggle the no block IO protocol flag")),
+		MENU_XENT('R', N_("toggle the required partition flag")),
+		MENU_XENT('S', N_("toggle the GUID specific bits")),
+
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_sun = {
+	.callback = sun_menu_cb,
+	.label = FDISK_DISKLABEL_SUN,
+	.entries = {
+		MENU_BSEP(N_("Sun")),
+		MENU_ENT('a', N_("toggle the read-only flag")),
+		MENU_ENT('c', N_("toggle the mountable flag")),
+
+		MENU_XENT('a', N_("change number of alternate cylinders")),
+		MENU_XENT('e', N_("change number of extra sectors per cylinder")),
+		MENU_XENT('i', N_("change interleave factor")),
+		MENU_XENT('o', N_("change rotation speed (rpm)")),
+		MENU_XENT('y', N_("change number of physical cylinders")),
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_sgi = {
+	.callback = sgi_menu_cb,
+	.label = FDISK_DISKLABEL_SGI,
+	.entries = {
+		MENU_SEP(N_("SGI")),
+		MENU_ENT('a', N_("select bootable partition")),
+		MENU_ENT('b', N_("edit bootfile entry")),
+		MENU_ENT('c', N_("select sgi swap partition")),
+		MENU_ENT('i', N_("create SGI info")),
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_dos = {
+	.callback = dos_menu_cb,
+	.label = FDISK_DISKLABEL_DOS,
+	.entries = {
+		MENU_BSEP(N_("DOS (MBR)")),
+		MENU_ENT('a', N_("toggle a bootable flag")),
+		MENU_ENT('b', N_("edit nested BSD disklabel")),
+		MENU_ENT('c', N_("toggle the dos compatibility flag")),
+
+		MENU_XENT('b', N_("move beginning of data in a partition")),
+		MENU_XENT('i', N_("change the disk identifier")),
+
+		MENU_BENT_NEST_H('M', N_("return from protective/hybrid MBR to GPT"), FDISK_DISKLABEL_DOS, FDISK_DISKLABEL_GPT),
+
+		{ 0, NULL }
+	}
+};
+
+static const struct menu menu_bsd = {
+	.callback = bsd_menu_cb,
+	.label = FDISK_DISKLABEL_BSD,
+	.entries = {
+		MENU_SEP(N_("BSD")),
+		MENU_ENT('e', N_("edit drive data")),
+		MENU_ENT('i', N_("install bootstrap")),
+		MENU_ENT('s', N_("show complete disklabel")),
+		MENU_ENT('x', N_("link BSD partition to non-BSD partition")),
+		{ 0, NULL }
+	}
+};
+
+static const struct menu *menus[] = {
+	&menu_gpt,
+	&menu_sun,
+	&menu_sgi,
+	&menu_dos,
+	&menu_bsd,
+	&menu_geo,
+	&menu_generic,
+	&menu_createlabel,
+};
+
+static const struct menu_entry *next_menu_entry(
+			struct fdisk_context *cxt,
+			struct menu_context *mc)
+{
+	struct fdisk_label *lb = fdisk_get_label(cxt, NULL);
+	struct fdisk_context *parent = fdisk_get_parent(cxt);
+	unsigned int type = 0, pr_type = 0;
+
+	assert(cxt);
+
+	if (lb)
+		type = fdisk_label_get_type(lb);
+	if (parent)
+		pr_type = fdisk_label_get_type(fdisk_get_label(parent, NULL));
+
+	while (mc->menu_idx < ARRAY_SIZE(menus)) {
+		const struct menu *m = menus[mc->menu_idx];
+		const struct menu_entry *e = &(m->entries[mc->entry_idx]);
+
+		/*
+		 * whole-menu filter
+		 */
+
+		/* no more entries */
+		if (e->title == NULL ||
+		/* menu wanted for specified labels only */
+		    (m->label && (!lb || !(m->label & type))) ||
+		/* unwanted for nested PT */
+		    (m->nonested && parent) ||
+		/* menu excluded for specified labels */
+		    (m->exclude && lb && (m->exclude & type))) {
+			mc->menu_idx++;
+			mc->entry_idx = 0;
+			continue;
+		}
+
+		/*
+		 * per entry filter
+		 */
+
+		/* excluded for the current label */
+		if ((e->exclude && lb && e->exclude & type) ||
+		/* entry wanted for specified labels only */
+		    (e->label && (!lb || !(e->label & type))) ||
+		/* exclude non-expert entries in expect mode */
+		    (e->expert == 0 && fdisk_is_details(cxt)) ||
+		/* nested only */
+		    (e->parent && (!parent || pr_type != e->parent)) ||
+		/* exclude non-normal entries in normal mode */
+		    (e->normal == 0 && !fdisk_is_details(cxt))) {
+			mc->entry_idx++;
+			continue;
+		}
+		mc->entry_idx++;
+		return e;
+
+	}
+	return NULL;
+}
+
+/* returns @menu and menu entry for then @key */
+static const struct menu_entry *get_fdisk_menu_entry(
+		struct fdisk_context *cxt,
+		int key,
+		const struct menu **menu)
+{
+	struct menu_context mc = MENU_CXT_EMPTY;
+	const struct menu_entry *e;
+
+	while ((e = next_menu_entry(cxt, &mc))) {
+		if (IS_MENU_SEP(e) || e->key != key)
+			continue;
+
+		if (menu)
+			*menu = menus[mc.menu_idx];
+		return e;
+	}
+
+	return NULL;
+}
+
+static int menu_detect_collisions(struct fdisk_context *cxt)
+{
+	struct menu_context mc = MENU_CXT_EMPTY;
+	const struct menu_entry *e, *r;
+
+	while ((e = next_menu_entry(cxt, &mc))) {
+		if (IS_MENU_SEP(e))
+			continue;
+
+		r = get_fdisk_menu_entry(cxt, e->key, NULL);
+		if (!r) {
+			DBG(MENU, ul_debug("warning: not found "
+					"entry for %c", e->key));
+			return -1;
+		}
+		if (r != e) {
+			DBG(MENU, ul_debug("warning: duplicate key '%c'",
+						e->key));
+			DBG(MENU, ul_debug("       : %s", e->title));
+			DBG(MENU, ul_debug("       : %s", r->title));
+			abort();
+		}
+	}
+
+	return 0;
+}
+
+static int print_fdisk_menu(struct fdisk_context *cxt)
+{
+	struct menu_context mc = MENU_CXT_EMPTY;
+	const struct menu_entry *e;
+
+	ON_DBG(MENU, menu_detect_collisions(cxt));
+
+	if (fdisk_is_details(cxt))
+		printf(_("\nHelp (expert commands):\n"));
+	else
+		printf(_("\nHelp:\n"));
+
+	while ((e = next_menu_entry(cxt, &mc))) {
+		if (IS_MENU_HID(e))
+			continue;	/* hidden entry */
+		if (IS_MENU_SEP(e) && (!e->title || !*e->title))
+			printf("\n");
+		else if (IS_MENU_SEP(e)) {
+			color_scheme_enable("help-title", UL_COLOR_BOLD);
+			printf("\n  %s\n", _(e->title));
+			color_disable();
+		} else
+			printf("   %c   %s\n", e->key, _(e->title));
+	}
+	fputc('\n', stdout);
+
+	if (fdisk_get_parent(cxt)) {
+		struct fdisk_label *l = fdisk_get_label(cxt, NULL),
+				   *p = fdisk_get_label(fdisk_get_parent(cxt), NULL);
+
+		fdisk_info(cxt, _("You're editing nested '%s' partition table, "
+				  "primary partition table is '%s'."),
+				fdisk_label_get_name(l),
+				fdisk_label_get_name(p));
+	}
+
+	return 0;
+}
+
+/* Asks for command, verify the key and perform the command or
+ * returns the command key if no callback for the command is
+ * implemented.
+ *
+ * Note that this function might exchange the context pointer to
+ * switch to another (nested) context.
+ *
+ * Returns: <0 on error
+ *           0 on success (the command performed)
+ *          >0 if no callback (then returns the key)
+ */
+int process_fdisk_menu(struct fdisk_context **cxt0)
+{
+	struct fdisk_context *cxt = *cxt0;
+	const struct menu_entry *ent;
+	const struct menu *menu;
+	int key, rc;
+	const char *prompt;
+	char buf[BUFSIZ] = { '\0' };
+
+	if (fdisk_is_details(cxt))
+		prompt = _("Expert command (m for help): ");
+	else
+		prompt = _("Command (m for help): ");
+
+	fputc('\n',stdout);
+	rc = get_user_reply(prompt, buf, sizeof(buf));
+
+	if (rc == -ECANCELED) {
+		/* Map ^C and ^D in main menu to 'q' */
+		if (is_interactive
+		    && fdisk_label_is_changed(fdisk_get_label(cxt, NULL))) {
+			rc = get_user_reply(
+				_("\nAll unwritten changes will be lost, do you really want to quit? "),
+				buf, sizeof(buf));
+			if (rc || !rpmatch(buf))
+				return 0;
+		}
+		key = 'q';
+	} else if (rc) {
+		return rc;
+	} else
+		key = buf[0];
+
+	ent = get_fdisk_menu_entry(cxt, key, &menu);
+	if (!ent) {
+		fdisk_warnx(cxt, _("%c: unknown command"), key);
+		return -EINVAL;
+	}
+
+	DBG(MENU, ul_debug("selected: key=%c, entry='%s'",
+				key, ent->title));
+
+	/* menu has implemented callback, use it */
+	if (menu->callback)
+		rc = menu->callback(cxt0, menu, ent);
+	else {
+		DBG(MENU, ul_debug("no callback for key '%c'", key));
+		rc = -EINVAL;
+	}
+
+	DBG(MENU, ul_debug("process menu done [rc=%d]", rc));
+	return rc;
+}
+
+static int script_read(struct fdisk_context *cxt)
+{
+	struct fdisk_script *sc = NULL;
+	char *filename = NULL;
+	int rc;
+
+	rc = fdisk_ask_string(cxt, _("Enter script file name"), &filename);
+	if (rc)
+		return rc;
+
+	errno = 0;
+	sc = fdisk_new_script_from_file(cxt, filename);
+	if (!sc && errno)
+		fdisk_warn(cxt, _("Cannot open %s"), filename);
+	else if (!sc)
+		fdisk_warnx(cxt, _("Failed to parse script file %s"), filename);
+	else if (fdisk_apply_script(cxt, sc) != 0) {
+		fdisk_warnx(cxt, _("Failed to apply script %s"), filename);
+		fdisk_warnx(cxt, _("Resetting fdisk!"));
+		rc = fdisk_reassign_device(cxt);
+                if (rc == 0 && !fdisk_has_label(cxt)) {
+                        fdisk_info(cxt, _("Device does not contain a recognized partition table."));
+                        rc = fdisk_create_disklabel(cxt, NULL);
+		}
+	} else
+		fdisk_info(cxt, _("Script successfully applied."));
+
+	fdisk_unref_script(sc);
+	free(filename);
+	return rc;
+}
+
+static int script_write(struct fdisk_context *cxt)
+{
+	struct fdisk_script *sc = NULL;
+	char *filename = NULL;
+	FILE *f = NULL;
+	int rc;
+
+	rc = fdisk_ask_string(cxt, _("Enter script file name"), &filename);
+	if (rc)
+		return rc;
+
+	sc = fdisk_new_script(cxt);
+	if (!sc) {
+		fdisk_warn(cxt, _("Failed to allocate script handler"));
+		goto done;
+	}
+
+	rc = fdisk_script_read_context(sc, NULL);
+	if (rc) {
+		fdisk_warnx(cxt, _("Failed to transform disk layout into script"));
+		goto done;
+	}
+
+	f = fopen(filename, "w");
+	if (!f) {
+		fdisk_warn(cxt, _("Cannot open %s"), filename);
+		goto done;
+	}
+
+	rc = fdisk_script_write_file(sc, f);
+	if (rc)
+		fdisk_warn(cxt, _("Failed to write script %s"), filename);
+	else
+		fdisk_info(cxt, _("Script successfully saved."));
+done:
+	if (f)
+		fclose(f);
+	fdisk_unref_script(sc);
+	free(filename);
+	return rc;
+}
+
+static int ask_for_wipe(struct fdisk_context *cxt, size_t partno)
+{
+	struct fdisk_partition *tmp = NULL;
+	char *fstype = NULL;
+	int rc, yes = 0;
+
+	rc = fdisk_get_partition(cxt, partno, &tmp);
+	if (rc)
+		goto done;
+
+	rc = fdisk_partition_to_string(tmp, cxt, FDISK_FIELD_FSTYPE, &fstype);
+	if (rc || fstype == NULL)
+		goto done;
+
+	fdisk_warnx(cxt, _("Partition #%zu contains a %s signature."), partno + 1, fstype);
+
+	if (pwipemode == WIPEMODE_AUTO && isatty(STDIN_FILENO))
+		fdisk_ask_yesno(cxt, _("Do you want to remove the signature?"), &yes);
+	else if (pwipemode == WIPEMODE_ALWAYS)
+		yes = 1;
+
+	if (yes) {
+		fdisk_info(cxt, _("The signature will be removed by a write command."));
+		rc = fdisk_wipe_partition(cxt, partno, TRUE);
+	}
+done:
+	fdisk_unref_partition(tmp);
+	free(fstype);
+	return rc;
+}
+
+/*
+ * Basic fdisk actions
+ */
+static int generic_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	int rc = 0;
+	size_t n;
+
+	/* actions shared between expert and normal mode */
+	switch (ent->key) {
+	case 'p':
+		list_disk_geometry(cxt);
+		list_disklabel(cxt);
+		break;
+	case 'w':
+		if (fdisk_is_readonly(cxt)) {
+			fdisk_warnx(cxt, _("Device is open in read-only mode."));
+			break;
+		}
+		rc = fdisk_write_disklabel(cxt);
+		if (rc)
+			err(EXIT_FAILURE, _("failed to write disklabel"));
+
+		fdisk_info(cxt, _("The partition table has been altered."));
+		if (fdisk_get_parent(cxt))
+			break; /* nested PT, don't leave */
+
+		if (device_is_used)
+			rc = fdisk_reread_changes(cxt, original_layout);
+		else
+			rc = fdisk_reread_partition_table(cxt);
+		if (!rc)
+			rc = fdisk_deassign_device(cxt, 0);
+		/* fallthrough */
+	case 'q':
+		fdisk_unref_context(cxt);
+		fputc('\n', stdout);
+		exit(rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+	case 'm':
+		rc = print_fdisk_menu(cxt);
+		break;
+	case 'v':
+		rc = fdisk_verify_disklabel(cxt);
+		break;
+	case 'i':
+		rc = print_partition_info(cxt);
+		break;
+	case 'F':
+		list_freespace(cxt);
+		break;
+	}
+
+	/* expert mode */
+	if (ent->expert) {
+		switch (ent->key) {
+		case 'd':
+			dump_firstsector(cxt);
+			break;
+		case 'D':
+			dump_disklabel(cxt);
+			break;
+		case 'f':
+			rc = fdisk_reorder_partitions(cxt);
+			if (rc)
+				fdisk_warnx(cxt, _("Failed to fix partitions order."));
+			else
+				fdisk_info(cxt, _("Partitions order fixed."));
+			break;
+		case 'r':
+			rc = fdisk_enable_details(cxt, 0);
+			break;
+		}
+		return rc;
+	}
+
+	/* normal mode */
+	switch (ent->key) {
+	case 'd':
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (rc)
+			break; /* no partitions yet (or ENOMEM, ...) */
+
+		rc = fdisk_delete_partition(cxt, n);
+		if (rc)
+			fdisk_warnx(cxt, _("Could not delete partition %zu"), n + 1);
+		else
+			fdisk_info(cxt, _("Partition %zu has been deleted."), n + 1);
+		break;
+	case 'I':
+		script_read(cxt);
+		break;
+	case 'O':
+		script_write(cxt);
+		break;
+	case 'l':
+		list_partition_types(cxt);
+		break;
+	case 'n':
+	{
+		size_t partno;
+		rc = fdisk_add_partition(cxt, NULL, &partno);
+		if (!rc)
+			rc = ask_for_wipe(cxt, partno);
+		break;
+	}
+	case 't':
+		change_partition_type(cxt);
+		break;
+	case 'u':
+		fdisk_set_unit(cxt,
+			fdisk_use_cylinders(cxt) ? "sectors" :
+							   "cylinders");
+		if (fdisk_use_cylinders(cxt))
+			fdisk_info(cxt, _("Changing display/entry units to cylinders (DEPRECATED!)."));
+		else
+			fdisk_info(cxt, _("Changing display/entry units to sectors."));
+		break;
+	case 'x':
+		fdisk_enable_details(cxt, 1);
+		break;
+	case 'r':
+		/* return from nested BSD to DOS or MBR to GPT */
+		if (fdisk_get_parent(cxt)) {
+			*cxt0 = fdisk_get_parent(cxt);
+
+			fdisk_info(cxt, _("Leaving nested disklabel."));
+			fdisk_unref_context(cxt);
+		}
+		break;
+	}
+
+	return rc;
+}
+
+
+/*
+ * This is fdisk frontend for GPT specific libfdisk functions that
+ * are not exported by generic libfdisk API.
+ */
+static int gpt_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	struct fdisk_context *mbr;
+	struct fdisk_partition *pa = NULL;
+	size_t n;
+	int rc = 0;
+	uintmax_t length = 0;
+
+	assert(cxt);
+	assert(ent);
+	assert(fdisk_is_label(cxt, GPT));
+
+	DBG(MENU, ul_debug("enter GPT menu"));
+
+	if (ent->expert) {
+		switch (ent->key) {
+		case 'i':
+			return fdisk_set_disklabel_id(cxt);
+		case 'l':
+	                rc =  fdisk_ask_number(cxt, 1, fdisk_get_npartitions(cxt),
+	                                ~(uint32_t)0, _("New maximum entries"), &length);
+			if (rc)
+				return rc;
+			return fdisk_gpt_set_npartitions(cxt, (uint32_t) length);
+		case 'M':
+			mbr = fdisk_new_nested_context(cxt, "dos");
+			if (!mbr)
+				return -ENOMEM;
+			*cxt0 = cxt = mbr;
+			if (fdisk_is_details(cxt))
+				fdisk_enable_details(cxt, 1);	/* keep us in expert mode */
+			fdisk_info(cxt, _("Entering protective/hybrid MBR disklabel."));
+			return 0;
+		}
+
+		/* actions where is necessary partnum */
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (rc)
+			return rc;
+
+		switch(ent->key) {
+		case 'u':
+			pa = fdisk_new_partition();	/* new template */
+			if (!pa)
+				rc = -ENOMEM;
+			else {
+				char *str = NULL;
+				rc = fdisk_ask_string(cxt, _("New UUID (in 8-4-4-4-12 format)"), &str);
+				if (!rc)
+					rc = fdisk_partition_set_uuid(pa, str);
+				if (!rc)
+					rc = fdisk_set_partition(cxt, n, pa);
+				free(str);
+				fdisk_unref_partition(pa);
+			}
+			break;
+		case 'n':
+			pa = fdisk_new_partition();	/* new template */
+			if (!pa)
+				rc = -ENOMEM;
+			else {
+				char *str = NULL;
+				rc = fdisk_ask_string(cxt, _("New name"), &str);
+				if (!rc)
+					rc = fdisk_partition_set_name(pa, str);
+				if (!rc)
+					rc = fdisk_set_partition(cxt, n, pa);
+				free(str);
+				fdisk_unref_partition(pa);
+			}
+			break;
+		case 'A':
+			rc = fdisk_toggle_partition_flag(cxt, n, GPT_FLAG_LEGACYBOOT);
+			break;
+		case 'B':
+			rc = fdisk_toggle_partition_flag(cxt, n, GPT_FLAG_NOBLOCK);
+			break;
+		case 'R':
+			rc = fdisk_toggle_partition_flag(cxt, n, GPT_FLAG_REQUIRED);
+			break;
+		case 'S':
+			rc = fdisk_toggle_partition_flag(cxt, n, GPT_FLAG_GUIDSPECIFIC);
+			break;
+		}
+	}
+
+	return rc;
+}
+
+
+/*
+ * This is fdisk frontend for MBR specific libfdisk functions that
+ * are not exported by generic libfdisk API.
+ */
+static int dos_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	int rc = 0;
+
+	DBG(MENU, ul_debug("enter DOS menu"));
+
+	if (!ent->expert) {
+		switch (ent->key) {
+		case 'a':
+		{
+			size_t n;
+			rc = fdisk_ask_partnum(cxt, &n, FALSE);
+			if (!rc)
+				rc = fdisk_toggle_partition_flag(cxt, n, DOS_FLAG_ACTIVE);
+			break;
+		}
+		case 'b':
+		{
+			struct fdisk_context *bsd
+					= fdisk_new_nested_context(cxt, "bsd");
+			if (!bsd)
+				return -ENOMEM;
+			if (!fdisk_has_label(bsd))
+				rc = fdisk_create_disklabel(bsd, "bsd");
+			if (rc)
+				fdisk_unref_context(bsd);
+			else {
+				*cxt0 = cxt = bsd;
+				fdisk_info(cxt,	_("Entering nested BSD disklabel."));
+			}
+			break;
+		}
+		case 'c':
+			toggle_dos_compatibility_flag(cxt);
+			break;
+		}
+		return rc;
+	}
+
+	/* expert mode */
+	switch (ent->key) {
+	case 'b':
+	{
+		size_t n;
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (!rc)
+			rc = fdisk_dos_move_begin(cxt, n);
+		break;
+	}
+	case 'i':
+		rc = fdisk_set_disklabel_id(cxt);
+		break;
+	case 'M':
+		/* return from nested MBR to GPT (backward compatibility only) */
+		if (fdisk_get_parent(cxt)) {
+			*cxt0 = fdisk_get_parent(cxt);
+
+			fdisk_info(cxt, _("Leaving nested disklabel."));
+			fdisk_unref_context(cxt);
+		}
+		break;
+	}
+	return rc;
+}
+
+static int sun_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	int rc = 0;
+
+	DBG(MENU, ul_debug("enter SUN menu"));
+
+	assert(cxt);
+	assert(ent);
+	assert(fdisk_is_label(cxt, SUN));
+
+	DBG(MENU, ul_debug("enter SUN menu"));
+
+	/* normal mode */
+	if (!ent->expert) {
+		size_t n;
+
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (rc)
+			return rc;
+		switch (ent->key) {
+		case 'a':
+			rc = fdisk_toggle_partition_flag(cxt, n, SUN_FLAG_RONLY);
+			break;
+		case 'c':
+			rc = fdisk_toggle_partition_flag(cxt, n, SUN_FLAG_UNMNT);
+			break;
+		}
+		return rc;
+	}
+
+	/* expert mode */
+	switch (ent->key) {
+	case 'a':
+		rc = fdisk_sun_set_alt_cyl(cxt);
+		break;
+	case 'e':
+		rc = fdisk_sun_set_xcyl(cxt);
+		break;
+	case 'i':
+		rc = fdisk_sun_set_ilfact(cxt);
+		break;
+	case 'o':
+		rc = fdisk_sun_set_rspeed(cxt);
+		break;
+	case 'y':
+		rc = fdisk_sun_set_pcylcount(cxt);
+		break;
+	}
+	return rc;
+}
+
+static int sgi_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	int rc = -EINVAL;
+	size_t n = 0;
+
+	DBG(MENU, ul_debug("enter SGI menu"));
+
+	assert(cxt);
+	assert(ent);
+	assert(fdisk_is_label(cxt, SGI));
+
+	if (ent->expert)
+		return rc;
+
+	switch (ent->key) {
+	case 'a':
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (!rc)
+			rc = fdisk_toggle_partition_flag(cxt, n, SGI_FLAG_BOOT);
+		break;
+	case 'b':
+		fdisk_sgi_set_bootfile(cxt);
+		break;
+	case 'c':
+		rc = fdisk_ask_partnum(cxt, &n, FALSE);
+		if (!rc)
+			rc = fdisk_toggle_partition_flag(cxt, n, SGI_FLAG_SWAP);
+		break;
+	case 'i':
+		rc = fdisk_sgi_create_info(cxt);
+		break;
+	}
+
+	return rc;
+}
+
+/*
+ * This is fdisk frontend for BSD specific libfdisk functions that
+ * are not exported by generic libfdisk API.
+ */
+static int bsd_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	int rc = 0, org;
+
+	assert(cxt);
+	assert(ent);
+	assert(fdisk_is_label(cxt, BSD));
+
+	DBG(MENU, ul_debug("enter BSD menu"));
+
+	switch(ent->key) {
+	case 'e':
+		rc = fdisk_bsd_edit_disklabel(cxt);
+		break;
+	case 'i':
+		rc = fdisk_bsd_write_bootstrap(cxt);
+		break;
+	case 's':
+		org = fdisk_is_details(cxt);
+
+		fdisk_enable_details(cxt, 1);
+		list_disklabel(cxt);
+		fdisk_enable_details(cxt, org);
+		break;
+	case 'x':
+		rc = fdisk_bsd_link_partition(cxt);
+		break;
+	}
+	return rc;
+}
+
+/* C/H/S commands
+ *
+ * The geometry setting from this dialog is not persistent and maybe reset by
+ * fdisk_reset_device_properties() (for example when you create a new disk
+ * label). Note that on command line specified -C/-H/-S setting is persistent
+ * as it's based on fdisk_save_user_geometry().
+ */
+static int geo_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	struct fdisk_label *lb = fdisk_get_label(cxt, NULL);
+	int rc = -EINVAL;
+	uintmax_t c = 0, h = 0, s = 0;
+	fdisk_sector_t mi, ma;
+
+	DBG(MENU, ul_debug("enter GEO menu"));
+
+	assert(cxt);
+	assert(ent);
+
+	/* default */
+	if (!lb)
+		lb = fdisk_get_label(cxt, "dos");
+
+	switch (ent->key) {
+	case 'c':
+		fdisk_label_get_geomrange_cylinders(lb, &mi, &ma);
+		rc =  fdisk_ask_number(cxt, mi, fdisk_get_geom_cylinders(cxt),
+				ma, _("Number of cylinders"), &c);
+		break;
+	case 'h':
+	{
+		unsigned int i, a;
+		fdisk_label_get_geomrange_heads(lb, &i, &a);
+		rc =  fdisk_ask_number(cxt, i, fdisk_get_geom_heads(cxt),
+				a, _("Number of heads"), &h);
+		break;
+	}
+	case 's':
+		fdisk_label_get_geomrange_sectors(lb, &mi, &ma);
+		rc =  fdisk_ask_number(cxt, mi, fdisk_get_geom_sectors(cxt),
+				ma, _("Number of sectors"), &s);
+		break;
+	}
+
+	if (!rc)
+		fdisk_override_geometry(cxt, c, h, s);
+	return rc;
+}
+
+static int createlabel_menu_cb(struct fdisk_context **cxt0,
+		       const struct menu *menu __attribute__((__unused__)),
+		       const struct menu_entry *ent)
+{
+	struct fdisk_context *cxt = *cxt0;
+	const char *wanted = NULL;
+	int rc = -EINVAL;
+
+	DBG(MENU, ul_debug("enter Create label menu"));
+
+	assert(cxt);
+	assert(ent);
+
+	if (ent->expert) {
+		switch (ent->key) {
+		case 'g':
+			/* Deprecated, use 'G' in main menu, just for backward
+			 * compatibility only. */
+			wanted = "sgi";
+			break;
+		}
+	} else {
+		switch (ent->key) {
+			case 'g':
+				wanted = "gpt";
+				break;
+			case 'G':
+				wanted = "sgi";
+				break;
+			case 'o':
+				wanted = "dos";
+				break;
+			case 's':
+				wanted = "sun";
+				break;
+		}
+	}
+
+	if (wanted) {
+		rc = fdisk_create_disklabel(cxt, wanted);
+		if (rc) {
+			errno = -rc;
+			fdisk_warn(cxt, _("Failed to create '%s' disk label"), wanted);
+		}
+	}
+	if (rc == 0 && fdisk_get_collision(cxt))
+		follow_wipe_mode(cxt);
+
+	return rc;
+}