myview.cpp

Linux/Unix下无限网卡配置和管理程序

#include <klocale.h>
#include <kprocess.h>
#include <kstandarddirs.h>
#include <kmessagebox.h>
#include "myview.h"

#include <qpushbutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qpixmap.h>
#include <qpainter.h>
#include <qlabel.h>
#include <qvbox.h>
#include <qfile.h>

#include <netinet/in.h>
#include <arpa/inet.h>
#include <time.h>

bool ALREADY_WARNED=false;

int
get_range_info (int skfd, const char *ifname, iwrange * range)
{
  struct iwreq wrq;
  char buffer[sizeof (iwrange) * 2];	/* Large enough */

  memset (buffer, 0, sizeof (range));

  strncpy (wrq.ifr_name, ifname, IFNAMSIZ);
  wrq.u.data.pointer = (caddr_t) buffer;
  wrq.u.data.length = 0;
  wrq.u.data.flags = 0;
  if (ioctl (skfd, SIOCGIWRANGE, &wrq) < 0)
    return (-1);

  memcpy ((char *) range, buffer, sizeof (iwrange));

  if ((WIRELESS_EXT > 10) && (wrq.u.data.length >= 300))
    {
#if WIRELESS_EXT > 10
      if ((range->we_version_compiled != WIRELESS_EXT)&&(!ALREADY_WARNED))
	{
	  fprintf (stderr, "Warning : Device %s has been compiled with version %d\n", ifname, range->we_version_compiled);
	  fprintf (stderr, "of Wireless Extension, while we are using version %d.\n", WIRELESS_EXT);
	  fprintf (stderr, "Some things may be broken...\n\n");
	  ALREADY_WARNED=true;
	}
#endif /* WIRELESS_EXT > 10 */
    }
  else
    {
      if ((wrq.u.data.length != sizeof (iwrange))&&(!ALREADY_WARNED))
	{
	  fprintf (stderr, "Warning : Device %s has been compiled with a different version\n", ifname);
	  fprintf (stderr, "of Wireless Extension than ours (we are using version %d).\n", WIRELESS_EXT);
	  fprintf (stderr, "Some things may be broken...\n\n");
	  ALREADY_WARNED=true;
	}
    }
  return (0);
}


int
iw_getstats (const char *ifname, iwstats * stats)
{
  FILE *f = fopen ("/proc/net/wireless", "r");
  char buf[256];
  char *bp;
  int t;
  if (f == NULL)
    return -1;
  /* Loop on all devices */
  while (fgets (buf, 255, f))
    {
      bp = buf;
      while (*bp && isspace (*bp))
	bp++;
      /* Is it the good device ? */
      if (strncmp (bp, ifname, strlen (ifname)) == 0 && bp[strlen (ifname)] == ':')
	{
	  /* Skip ethX: */
	  bp = strchr (bp, ':');
	  bp++;
	  /* -- status -- */
	  bp = strtok (bp, " ");
	  sscanf (bp, "%X", &t);
	  stats->status = (unsigned short) t;
	  /* -- link quality -- */
	  bp = strtok (NULL, " ");
	  if (strchr (bp, '.') != NULL)
	    stats->qual.updated |= 1;
	  sscanf (bp, "%d", &t);
	  stats->qual.qual = (unsigned char) t;
	  /* -- signal level -- */
	  bp = strtok (NULL, " ");
	  if (strchr (bp, '.') != NULL)
	    stats->qual.updated |= 2;
	  sscanf (bp, "%d", &t);
	  stats->qual.level = (unsigned char) t;
	  /* -- noise level -- */
	  bp = strtok (NULL, " ");
	  if (strchr (bp, '.') != NULL)
	    stats->qual.updated += 4;
	  sscanf (bp, "%d", &t);
	  stats->qual.noise = (unsigned char) t;
	  /* -- discarded packets -- */
	  bp = strtok (NULL, " ");
	  sscanf (bp, "%d", &stats->discard.nwid);
	  bp = strtok (NULL, " ");
	  sscanf (bp, "%d", &stats->discard.code);
	  bp = strtok (NULL, " ");
	  sscanf (bp, "%d", &stats->discard.misc);
	  fclose (f);
	  return 0;
	}
    }
  fclose (f);
  return -1;
}

int
get_info (int skfd, const char *ifname, struct wireless_info *info)
{
  struct iwreq wrq;

  memset ((char *) info, 0, sizeof (struct wireless_info));

  /* Get wireless name */
  strncpy (wrq.ifr_name, ifname, IFNAMSIZ);
  if (ioctl (skfd, SIOCGIWNAME, &wrq) < 0)
    /* If no wireless name : no wireless extensions */
    return (-1);
  else
    strcpy (info->name, wrq.u.name);

  /* Get frequency / channel */
  strncpy (wrq.ifr_name, ifname, IFNAMSIZ);
  if (ioctl (skfd, SIOCGIWFREQ, &wrq) >= 0)
    {
      info->has_freq = 1;
    }

  /* Get operation mode */
  strncpy (wrq.ifr_name, ifname, IFNAMSIZ);
  if (ioctl (skfd, SIOCGIWMODE, &wrq) >= 0)
    {
      if (wrq.u.mode < 6)
	info->has_mode = 1;
      info->mode = wrq.u.mode;
    }

  /* get range info */
  if (get_range_info (skfd, ifname, &(info->range)) >= 0)
    info->has_range = 1;

  /* get network name */
  strncpy (wrq.ifr_name, ifname, IFNAMSIZ);
  wrq.u.essid.pointer = (caddr_t) info->essid;
  wrq.u.essid.length = 0;
  wrq.u.essid.flags = 0;
  if (ioctl (skfd, SIOCGIWESSID, &wrq) >= 0)
    {
      info->has_essid = 1;
      info->essid_on = wrq.u.data.flags;
    };
  return 0;
};

myview::myview (int socketnumber, bool allow1, bool allow2, bool allow3, QWidget * parent, const char *name, WFlags fl):QWidget (parent, name, fl)
{
  if (!name)
    setName ("KWiFiManager Kicker Applet");
  resize (178, 48);
  socket = socketnumber;
  KStandardDirs finder;
  kdedir = finder.findResourceDir ("data", "kwifimanager/pics/no_card.png");
  kdedir += "kwifimanager/pics/";
  setMaximumSize (QSize (32767, 48));
  setMinimumSize (QSize (16, 16));
  setSizePolicy (QSizePolicy ((QSizePolicy::SizeType) 5, (QSizePolicy::SizeType) 5, sizePolicy ().hasHeightForWidth ()));
  setCaption (i18n ("Status Bar"));
  infocontainer = new wireless_info;
  infocontainer2 = new iwstats;
  standardfarbe = backgroundColor ();
  blink = false;
  zeit = 0;
  allow_flash_low = allow1;
  allow_flash_crit = allow2;
  allow_flash_dropped = allow3;
  offline = new QPixmap (kdedir + "offline.png");
  excellent = new QPixmap (kdedir + "excellent.png");
  good = new QPixmap (kdedir + "good.png");
  marginal = new QPixmap (kdedir + "marginal.png");
  oor_down = new QPixmap (kdedir + "oor_down.png");
  oor_minimum = new QPixmap (kdedir + "oor_minimum.png");

}

void
myview::paintEvent (QPaintEvent *)
{
  QFile procnetdev ("/proc/net/dev");
  procnetdev.open (IO_ReadOnly);
  QStringList liste;
  QString temp = "";
  QString temptrash = "X";
  int end = 1;
  while ((end != 0) && (temp != temptrash))
    {
      end = procnetdev.readLine (temp, 9999);
      temptrash = temp;
      temp.truncate (temp.find (":") > 0 ? temp.find (":") : 0);
      temp = temp.stripWhiteSpace ();
      if ((end != 0) && (temp != ""))
	liste += temp;
    };
  for (QStringList::Iterator it = liste.begin (); it != liste.end (); ++it)
    {
      if (get_info (socket, *it, infocontainer) != -1)
	{
	  iw_getstats (*it, infocontainer2);
	  interfc = *it;
	  break;
	};
      interfc = "";
    };
  int tempstrength = infocontainer2->qual.qual;
  if ((infocontainer->mode==2) && (infocontainer->has_range==1) && (infocontainer->range.max_qual.qual!=0))
    tempstrength = (int) tempstrength *92 / (int) infocontainer->range.max_qual.qual;
  QPainter *strengthpainter = new QPainter (this);
  if (infocontainer->has_freq == 0)
    {
      strengthpainter->drawPixmap (0, 0, *offline);
      if (blink) { setBackgroundColor (standardfarbe); blink=false;};
    }
  else if (infocontainer->mode == 1)
    {
      strengthpainter->drawPixmap (0, 0, *offline);
      if (blink) { setBackgroundColor (standardfarbe); blink=false;};
    }
  else if (tempstrength > 25)
    {
      strengthpainter->drawPixmap (0, 0, *excellent);
      if (blink) { setBackgroundColor (standardfarbe); blink=false;};
    }
  else if (tempstrength > 15)
    {
      strengthpainter->drawPixmap (0, 0, *good);
      if (blink) { setBackgroundColor (standardfarbe); blink=false;};
    }
  else if (tempstrength > 5)
    {
      if ((zeit!=time(0)) && (blink))
	{
	  setBackgroundColor (standardfarbe);
	  zeit=time(0);
	  blink = false;
	}
      else if ((zeit!=time(0)) && (allow_flash_low))
	{
	  setBackgroundColor (QColor (255, 255, 0));
	  zeit=time(0);
	  blink = true;
	};
      strengthpainter->drawPixmap (0, 0, *marginal);
    }
  else if (tempstrength > 0)
    {
      if ((zeit!=time(0)) && (blink))
	{
	  setBackgroundColor (standardfarbe);
	  zeit=time(0);
	  blink = false;
	}
      else if ((zeit!=time(0)) && (allow_flash_crit))
	{
	  setBackgroundColor (QColor (255, 128, 0));
	  zeit=time(0);
	  blink = true;
	};
      strengthpainter->drawPixmap (0, 0, *oor_minimum);
    }
  else if ((tempstrength == 0) && (infocontainer->mode == 2))
    {
      if ((zeit!=time(0)) && (blink))
	{
	  setPaletteBackgroundColor (standardfarbe);
	  zeit=time(0);
	  blink = false;
	}
      else if ((zeit!=time(0)) && (allow_flash_dropped))
	{
	  setPaletteBackgroundColor (QColor (255, 0, 0));
	  blink = true;
	};
      strengthpainter->drawPixmap (0, 0, *oor_down);
    }
  else
    {
      strengthpainter->drawPixmap (0, 0, *offline);
      if (blink) { setBackgroundColor (standardfarbe); blink=false; };
    };
  QString sstrength2 = "%1";
  if (infocontainer->has_freq == 1)
    {
      if (infocontainer->mode == 2)
	{
	  sstrength2 = sstrength2.arg (tempstrength);
	}
      else
	sstrength2 = sstrength2.arg (i18n ("N/A"));
    }
  else
    sstrength2 = sstrength2.arg (i18n ("N/A"));
  strengthpainter->drawText (0, 38, sstrength2);
  delete strengthpainter;
}

void
myview::mousePressEvent (QMouseEvent *aktion)
{
  if (aktion->button()==QMouseEvent::LeftButton) {
    KProcess launch;
    launch << "kwifimanager";
    launch.start (KProcess::DontCare);
  };
}

void
myview::enterEvent (QEvent *)
{
  QString IP = "Local IP: %1";
  QString NET = "Network : %1";
  struct sockaddr *sa;
  struct sockaddr_in *sin;
  struct ifreq ifr;
  strncpy (ifr.ifr_name, interfc.latin1 (), IFNAMSIZ);
  if (ioctl (socket, SIOCGIFADDR, &ifr) == -1)
    {
      IP = IP.arg (i18n ("unavailable"));
    }
  else
    {
      sa = (struct sockaddr *) &(ifr.ifr_addr);
      if (sa->sa_family == AF_INET)
	{
	  sin = (struct sockaddr_in *) sa;
	  IP = IP.arg ((QString) inet_ntoa (sin->sin_addr));
	}
      else
	{
	  IP = IP.arg (i18n ("unavailable"));
	};
    };
  NET = NET.arg (infocontainer->essid);
  QToolTip::add (this, IP + "\n" + NET);
}

/*
 *  Destroys the object and frees any allocated resources
 */
myview::~myview ()
{
  delete offline;
  delete excellent;
  delete good;
  delete marginal;
  delete oor_down;
  delete oor_minimum;
  // no need to delete child widgets, Qt does it all for us
}

#include "myview.moc"