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/*
File: geometryn.c
Copyright (C) 1998-2013 Christophe GRENIER <grenier@cgsecurity.org>
This software is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#if defined(DISABLED_FOR_FRAMAC)
#undef HAVE_NCURSES
#endif
#ifdef HAVE_NCURSES
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include "types.h"
#include "common.h"
#include "intrf.h"
#include "intrfn.h"
#include "log.h"
#include "hdaccess.h"
#include "autoset.h"
#include "geometry.h"
#include "geometryn.h"
#define MAX_HEADS 255u
int change_geometry_ncurses(disk_t *disk_car)
{
int done = 0;
int default_option=4;
int cyl_modified=0;
int geo_modified=0;
while (done==0)
{
char def[128];
char response[128];
long int tmp_val=0;
int command;
static const struct MenuItem menuGeometry[]=
{
{ 'c', "Cylinders", "Change cylinder geometry" },
{ 'h', "Heads", "Change head geometry" },
{ 's', "Sectors", "Change sector geometry" },
{ 'n', "Sector Size", "Change sector size (WARNING: VERY DANGEROUS!)" },
{ 'q', "Ok", "Done with changing geometry" },
{ 0, NULL, NULL }
};
aff_copy(stdscr);
wmove(stdscr,5,0);
wprintw(stdscr,"%s, sector size=%u\n",disk_car->description(disk_car),disk_car->sector_size);
wmove(stdscr,7,0);
wprintw(stdscr,"Because these numbers change the way that TestDisk looks for partitions");
wmove(stdscr,8,0);
wprintw(stdscr,"and calculates their sizes, it's important to have the correct disk geometry.");
wmove(stdscr,9,0);
wprintw(stdscr,"PC partitioning programs often make partitions end on cylinder boundaries.");
wmove(stdscr,11,0);
wprintw(stdscr,"A partition's CHS values are based on disk translations which make them");
wmove(stdscr,12,0);
wprintw(stdscr,"different than its physical geometry. The most common CHS head values");
wmove(stdscr,13,0);
wprintw(stdscr,"are: 255, 240 and sometimes 16.");
wmove(stdscr,INTER_GEOM_Y, INTER_GEOM_X);
wclrtoeol(stdscr);
wrefresh(stdscr);
command=wmenuSimple(stdscr,menuGeometry, default_option);
switch (command) {
case 'c':
case 'C':
{
sprintf(def, "%lu", disk_car->geom.cylinders);
mvwaddstr(stdscr,INTER_GEOM_Y, INTER_GEOM_X, "Enter the number of cylinders: ");
wclrtoeol(stdscr);
if (get_string(stdscr, response, sizeof(response), def) > 0) {
tmp_val = atol(response);
if (tmp_val > 0) {
disk_car->geom.cylinders = tmp_val;
cyl_modified=1;
if(geo_modified==0)
geo_modified=1;
} else
wprintw(stdscr,"Illegal cylinders value");
}
}
default_option=1;
break;
case 'h':
case 'H':
{
sprintf(def, "%u", disk_car->geom.heads_per_cylinder);
mvwaddstr(stdscr,INTER_GEOM_Y, INTER_GEOM_X, "Enter the number of heads (1-255): ");
wclrtoeol(stdscr);
if (get_string(stdscr, response, sizeof(response), def) > 0) {
tmp_val = atoi(response);
if (tmp_val > 0 && tmp_val <= MAX_HEADS) {
disk_car->geom.heads_per_cylinder = tmp_val;
if(geo_modified==0)
geo_modified=1;
if(cyl_modified==0)
set_cylinders_from_size_up(disk_car);
} else
wprintw(stdscr,"Illegal heads value");
}
}
default_option=2;
break;
case 's':
case 'S':
{
sprintf(def, "%u", disk_car->geom.sectors_per_head);
/* FIXME SUN partition can have more than 63 sectors */
mvwaddstr(stdscr,INTER_GEOM_Y, INTER_GEOM_X, "Enter the number of sectors per track (1-63): ");
wclrtoeol(stdscr);
if (get_string(stdscr, response, sizeof(response), def) > 0)
{
tmp_val = atoi(response);
/* TODO Check for the maximum value */
if (tmp_val > 0) {
disk_car->geom.sectors_per_head = tmp_val;
if(geo_modified==0)
geo_modified=1;
if(cyl_modified==0)
set_cylinders_from_size_up(disk_car);
} else
wprintw(stdscr,"Illegal sectors value");
}
}
default_option=3;
break;
case 'n':
case 'N':
{
sprintf(def, "%u", disk_car->sector_size);
mvwaddstr(stdscr,INTER_GEOM_Y, INTER_GEOM_X, "Enter the sector size (512, 1024, 2048, 4096, 8192): ");
wclrtoeol(stdscr);
if (get_string(stdscr, response, sizeof(response), def) > 0) {
tmp_val = atoi(response);
if(change_sector_size(disk_car, cyl_modified, tmp_val))
wprintw(stdscr,"Illegal sector size");
else
geo_modified=2;
}
}
default_option=4;
break;
case key_ESC:
case 'q':
case 'Q':
done = 1;
break;
}
if(cyl_modified!=0)
disk_car->disk_size=(uint64_t)disk_car->geom.cylinders*disk_car->geom.heads_per_cylinder*disk_car->geom.sectors_per_head*disk_car->sector_size;
}
if(geo_modified!=0)
{
disk_car->disk_size=(uint64_t)disk_car->geom.cylinders*disk_car->geom.heads_per_cylinder*disk_car->geom.sectors_per_head*disk_car->sector_size;
#ifdef __APPLE__
/* On MacOSX if HD contains some bad sectors, the disk size may not be correctly detected */
disk_car->disk_real_size=disk_car->disk_size;
#endif
log_info("New geometry\n%s sector_size=%u\n", disk_car->description(disk_car), disk_car->sector_size);
autoset_unit(disk_car);
if(geo_modified==2)
return 1;
}
return 0;
}
#endif
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