interface.c

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/* Linux Prism II Stumbler - Utility Scan for 802_11 networks under Linux
 * 
 * File : interface.c
 * Project : WifiScanner (c) 2002 Hervé Schauer Consultants
 * Usage : This utility is written for use with IEEE 802.11 adapters based
 * on Intersil's PRISM II chipset (PCMCIA).
 * 
 * Base code was from prismstumbler Jan Fernquist <Jan.B.Fernquist@telia.com>
 * and wlanctl from www.linux-wlan.org
 *
 * This program 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 to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Id: interface.c,v 1.20 2005/01/27 16:24:55 poggij Exp $
 */

#include <include.h>
#include <src/interface.h>
#include <src/analyse.h>

extern WINDOW *Title_WND, *Panel_WND, *Sum_WND, *RealTime_WND;
extern Statistics_t Stats;

//extern UINT8 DebugLevel;
extern ConfigStruct config;
extern UINT8 CursesIsInUse;

#ifdef WITH_THREAD
extern pthread_mutex_t screen_mutex;
extern UINT8 stop_sniffing;
#endif

/*
 * Function to initialise the screen
 */
void InitScreen(UINT8 CheckScreenSize)
{
  initscr();
  cbreak();
  noecho();
  nonl();
  intrflush(stdscr, FALSE);
  keypad(stdscr, TRUE);

  if ((CheckScreenSize)
      && ((LINES < ROW_MINI_NEEDED) || (COLS < COL_MINI_NEEDED))) {
    endwin();
    fprintf(stderr,
            "\nSorry, This program requires a screen size of at least %d columns by %d lines\n",
            COL_MINI_NEEDED, ROW_MINI_NEEDED);
    fprintf(stderr, "Please resize your window\n\n");
    exit(1);
  }

  Title_WND = subwin(stdscr, ROW_WND_TITLE, COL_WND_TITLE, 0, 0);
  Panel_WND =
      subwin(stdscr, ROW_WND_PANEL, COL_WND_PANEL, ROW_WND_TITLE, 0);
  Sum_WND =
      subwin(stdscr, ROW_WND_SUM, COL_WND_SUM, ROW_WND_TITLE,
             COL_WND_PANEL);
  RealTime_WND =
      subwin(stdscr, ROW_WND_REALTIME, COL_WND_REALTIME,
             (ROW_WND_TITLE + ROW_WND_PANEL), 0);

  scrollok(RealTime_WND, TRUE);
  scrollok(Panel_WND, TRUE);
  //nodelay (RealTime_WND, TRUE);
  //werase(Sum_WND);

  box(Sum_WND, '|', '-');
  mvwprintw(Sum_WND, 0, 3, " Summary ");
  mvwprintw(Sum_WND, 1, 2, "AP     :");
  mvwprintw(Sum_WND, 2, 2, "STA    :");
  mvwprintw(Sum_WND, 3, 2, "BEACON :");
  mvwprintw(Sum_WND, 4, 2, "SSID   :");
  mvwprintw(Sum_WND, 5, 2, "Channel:");
  mvwprintw(Sum_WND, 6, 2, "Invalid:");
  mvwprintw(Sum_WND, 7, 2, "Crypted:");
  mvwprintw(Sum_WND, 8, 2, "Weak   :");
  mvwprintw(Sum_WND, 9, 2, "Last IV:");
  mvwprintw(Sum_WND, 10, 2, "Packets:");

  mvwprintw(Sum_WND, 12, 2, "Scan 00 - ABCDS");
  mvwprintw(Sum_WND, 13, 2, "|_____________  _|");
  mvwprintw(Sum_WND, 14, 3, "0000000001111  1");
  mvwprintw(Sum_WND, 15, 3, "1234567890123  4");
  mvwprintw(Sum_WND, 17, 3, "IDS is OFF");

  box(Panel_WND, '|', '-');

  wprintw(Title_WND,
          "WifiScanner v%s (c) 2002 Hervé Schauer Consultants (%s)\n",
          WIFISCANNER_VERSION, WIFISCANNER_BUG);
  RefreshAllWND();
}

void RefreshAllWND(void)
{
#ifdef WITH_THREAD
  pthread_mutex_lock(&screen_mutex);
#endif
  wrefresh(Sum_WND);
  wrefresh(Panel_WND);
  wrefresh(RealTime_WND);
  wrefresh(Title_WND);
  refresh();
#ifdef WITH_THREAD
  pthread_mutex_unlock(&screen_mutex);
#endif
}

/* Write Stats in Summary Window */
void WriteSummary(void)
{
  char DisplayBit[5];

  DoSummary();

#ifdef WITH_THREAD
  pthread_mutex_lock(&screen_mutex);
#endif
  mvwprintw(Sum_WND, 1, 11, "%d", Stats.AP);
  mvwprintw(Sum_WND, 2, 11, "%d", Stats.STA);
  mvwprintw(Sum_WND, 3, 11, "%d", Stats.Beacon);
  mvwprintw(Sum_WND, 4, 11, "%d", Stats.SSID);
  mvwprintw(Sum_WND, 5, 11, "%d", Stats.Channel);
  mvwprintw(Sum_WND, 6, 11, "%d", Stats.INVLD);
  mvwprintw(Sum_WND, 7, 11, "%d", Stats.CryptedPackets);
  mvwprintw(Sum_WND, 8, 11, "%d", Stats.WeakIV);
//  mvwprintw (Sum_WND, 9, 11, "%02X:%02X:%02X:%02X", Stats.IV[3], Stats.IV[2],
//           Stats.IV[1], Stats.IV[0]);
  mvwprintw(Sum_WND, 9, 11, "%02X:%02X:%02X[%1X]", Stats.IV[2],
            Stats.IV[1], Stats.IV[0], (Stats.IV[3] & 0x03));
  mvwprintw(Sum_WND, 10, 11, "%d", Stats.Packets);

  if (IS_BIT_SET(config.DoNotDisplay, 0))
    DisplayBit[0] = 'A';
  else
    DisplayBit[0] = 'a';

  if (IS_BIT_SET(config.DoNotDisplay, 1))
    DisplayBit[1] = 'B';
  else
    DisplayBit[1] = 'b';

  if (IS_BIT_SET(config.DoNotDisplay, 2))
    DisplayBit[2] = 'C';
  else
    DisplayBit[2] = 'c';

  if (IS_BIT_SET(config.DoNotDisplay, 3))
    DisplayBit[3] = 'D';
  else
    DisplayBit[3] = 'd';

  if (IS_BIT_SET(config.DoNotDisplay, 4))
    DisplayBit[4] = 'S';
  else
    DisplayBit[4] = 's';

  DisplayBit[5] = 0;
  mvwprintw(Sum_WND, 12, 12, "%s", DisplayBit);

  wrefresh(Sum_WND);
#ifdef WITH_THREAD
  pthread_mutex_unlock(&screen_mutex);
#endif
}


/***
 * Function to refresh screen only one time per second
 *  This function is threaded, so it do more sleep than work ;-)
 ***/
#ifdef WITH_THREAD
void RefreshRealTime_WND_th(void)
{
  struct tm *ascii_now;         // The timestamp in ASCII (human readable)
  struct timeb binary_now;

  while (!stop_sniffing) {
    ftime(&binary_now);
    ascii_now = localtime(&binary_now.time);
    pthread_mutex_lock(&screen_mutex);
    mvwprintw(Panel_WND, ROW_WND_PANEL - 1, 3,
              "Last Updt %02d:%02d:%02d ", ascii_now->tm_hour,
              ascii_now->tm_min, ascii_now->tm_sec);
    wrefresh(RealTime_WND);
    pthread_mutex_unlock(&screen_mutex);
    // Sleep for less than 1 second, but wake up at HH:MM:SS:000
    if (config.DebugLevel >= 2)
      usleep((1000 - binary_now.millitm) * 100);
    else
      usleep((1000 - binary_now.millitm) * 1000);
  }
  pthread_exit(0);
}

/***
 * This function is to give compatibility
 * and because wben debug is more or egual than 2 we refresh every packets
 ***/
void RefreshRealTime_WND(UINT8 GotItOne)
{
/*
  if ((config.DebugLevel >= 2) && ()) {
    pthread_mutex_lock(&screen_mutex);
    wrefresh(RealTime_WND);
    pthread_mutex_unlock(&screen_mutex);
  }
 */
}

#else

void RefreshRealTime_WND(UINT8 GotItOne)
{
  static time_t now, last_time = 0;
  struct tm *ascii_now;         // The timestamp in ASCII (human readable)
  struct timeb binary_now;
  static UINT8 NeedToRefresh = FALSE;

  time(&now);

  if (GotItOne)
    NeedToRefresh = TRUE;

  if (((now != last_time) && (NeedToRefresh))
      || (config.DebugLevel >= 2)) {
    ftime(&binary_now);
    last_time = now;
    ascii_now = localtime(&binary_now.time);
    ascii_now = localtime(&now);
    mvwprintw(Panel_WND, ROW_WND_PANEL - 1, 3,
              "Last Updt %02d:%02d:%02d ", ascii_now->tm_hour,
              ascii_now->tm_min, ascii_now->tm_sec);

    wrefresh(RealTime_WND);
    NeedToRefresh = FALSE;
  }
}
#endif

// Function to exit from ncurses environment
void EndCurses(void)
{
  CursesIsInUse = FALSE;
  endwin();
}

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