ipw.h File Reference

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Go to the source code of this file.

Functions
int	selectChannelIPW (char *devname, int channel)
int	shutCardIPW (char *devname)
int	openCardIPW (char *devname)
int	getPacketIPW (p80211_caphdr_t *wlan_header, UINT8 *buf, int maxlen)
int	openPacketIPW (char *devname)
void	closePacketIPW (void)

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Function Documentation

int selectChannelIPW	(	char *	devname,
		int	channel
	)

Definition at line 44 of file ipw.c.

References debug, NO_ERROR, and STR_MAX.

Referenced by selectChannel().

{
#define STR_MAX 80
  char str[STR_MAX];
  int result = NO_ERROR;

  //result = IwconfigSetMode(devname, IW_MODE_MONITOR);
  //result = IwconfigSetChannel(devname, channel);
  snprintf(str, STR_MAX, "iwpriv %s monitor 1 %d 2>/dev/null",
           devname, channel);
  debug(3, "%s\n", str);
  result += system(str);
  //return NO_ERROR;
  return result;
}

int shutCardIPW

(

char *

devname

)

Definition at line 60 of file ipw.c.

References IfconfigSetFlags(), IwconfigSetMode(), NO_ERROR, and warning_if_error().

Referenced by shutCard().

{
  int result = NO_ERROR;

  result = IwconfigSetMode(devname, IW_MODE_INFRA);
  warning_if_error(result);
  result = IfconfigSetFlags(devname, IFF_UP);
  warning_if_error(result);
  return result;
}

int openCardIPW

(

char *

devname

)

Definition at line 71 of file ipw.c.

References IfconfigSetFlags(), IwconfigSetMode(), NO_ERROR, and warning_if_error().

Referenced by openCard().

{
  int result = NO_ERROR;

  // Turn on monitor mode
  result = IwconfigSetMode(devname, IW_MODE_MONITOR);
  warning_if_error(result);
  result = IfconfigSetFlags(devname, IFF_UP + IFF_PROMISC);
  warning_if_error(result);
  return result;
}

int getPacketIPW	(	p80211_caphdr_t *	wlan_header,
		UINT8 *	buf,
		int	maxlen
	)

Definition at line 84 of file ipw.c.

References CaptureArg_t::DataLink, debug, DumpHexPaquets(), FillRadioData(), MAX_BUFFER_SIZE, MAX_OF, memcpy_buff(), MIN_OF, CaptureArg_t::offset, CaptureArg_t::pcap, and RealTime_WND.

Referenced by getPacket().

{
  struct pcap_pkthdr pktHdr;
  u_char *RadioPacket;
  fd_set rs;

  FD_ZERO(&rs);
  FD_SET(0, &rs);

  RadioPacket = (u_char *) pcap_next(ca.pcap, &pktHdr);
  if (RadioPacket != NULL) {
#if 0
    // Function to dump in hexa the message send or sent to the driver
    DumpHexPaquets(RealTime_WND, RadioPacket, 0x40);
#endif
    if (ca.DataLink == DLT_IEEE802_11_RADIO) {
      // calculate the offset = RadioPacket[2];
      ca.offset = (UINT16) RadioPacket[2];
      debug(3, "DLT_IEEE802_11_RADIO >> ca.offset = %x\n", ca.offset);
    }
    debug(3, "ca.offset = %x - pktHdr.len = %x\n", ca.offset, pktHdr.len);
    // If no problem and packet is enought big (with data)
    if (pktHdr.len > MAX_BUFFER_SIZE) {
      debug(1, "ERROR : Packet is TOOO BIG size=%d\n", pktHdr.len);
      // Sometimes return an enormous empty packet ...
      //DumpHexPaquets(RealTime_WND, buf, 0x1B0);
      return 0;
    } else {
      memcpy_buff(buf, (RadioPacket + ca.offset),
                  MIN_OF((pktHdr.len - ca.offset), maxlen));
      FillRadioData(wlan_header, ca.DataLink, RadioPacket, pktHdr.len);
      return MAX_OF(0, (pktHdr.len - ca.offset));
    }
  }
  return (0);                   /* Noting to read */
}

int openPacketIPW

(

char *

devname

)

Definition at line 121 of file ipw.c.

References CalculateOffset(), CaptureArg_t::DataLink, errbuf, ERROR_CANT_OPEN_PCAP, MAX_PACKET_LEN, NO_ERROR, CaptureArg_t::offset, and CaptureArg_t::pcap.

Referenced by openPacket().

{
  ca.pcap = pcap_open_live(devname, MAX_PACKET_LEN, 0, 1000, errbuf);

  if (ca.pcap) {
    pcap_setnonblock(ca.pcap, 1, errbuf);
    ca.DataLink = pcap_datalink(ca.pcap);
    ca.offset = CalculateOffset(ca.DataLink);
    return NO_ERROR;
  }
  return ERROR_CANT_OPEN_PCAP;
}

void closePacketIPW

(

void

)

Definition at line 134 of file ipw.c.

References CaptureArg_t::pcap.

Referenced by closePacket().

{
  pcap_close(ca.pcap);
}