prism54g.h File Reference

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Functions
int	selectChannelPRISM54g (char *devname, int channel)
int	shutCardPRISM54g (char *devname)
int	openCardPRISM54g (char *devname)
int	getPacketPRISM54g (p80211_caphdr_t *wlan_header, UINT8 *buf, int maxlen)
int	openPacketPRISM54g (char *devname)
void	closePacketPRISM54g (void)

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Function Documentation

int selectChannelPRISM54g	(	char *	devname,
		int	channel
	)

Definition at line 50 of file prism54g.c.

References IwconfigSetChannel(), and NO_ERROR.

Referenced by selectChannel().

{
  int result = NO_ERROR;

  result = IwconfigSetChannel(devname, channel);
  return NO_ERROR;
  //return result;
}

int shutCardPRISM54g

(

char *

devname

)

Definition at line 59 of file prism54g.c.

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

Referenced by shutCard().

{
  int result = NO_ERROR;

  // Turn off monitor mode
  result = IwconfigSetMode(devname, IW_MODE_INFRA);
  warning_if_error(result);
  result = IfconfigSetFlags(devname, 0);
  warning_if_error(result);
  return result;
}

int openCardPRISM54g

(

char *

devname

)

Definition at line 71 of file prism54g.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 getPacketPRISM54g	(	p80211_caphdr_t *	wlan_header,
		UINT8 *	buf,
		int	maxlen
	)

Definition at line 85 of file prism54g.c.

References p80211_caphdr::antenna, p80211_caphdr::channel, p80211_caphdr::datarate, p80211_caphdr::encoding, p80211_caphdr::hosttime, p80211_caphdr::length, p80211_caphdr::mactime, memcpy_buff(), CaptureArg_t::pcap, p80211_caphdr::phytype, p80211_caphdr::preamble, p80211_caphdr::priority, p80211_caphdr::ssi_noise, p80211_caphdr::ssi_signal, p80211_caphdr::ssi_type, and p80211_caphdr::version.

Referenced by getPacket().

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

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

  ret = (u_char *) pcap_next(ca.pcap, &pktHdr);
  // If no problem and packet is enought big (with data)
  if ((ret) && (pktHdr.len >= 1)) {
    if (memcpy_buff(buf, ret, pktHdr.len) == NULL)
      return 0;
    // Fill Header
    // TODO : find this information in any maner ?!
    wlan_header->version = 0;    // It's a reduced capture frame format
    wlan_header->length = 0;     // Not used for now
    wlan_header->mactime = 0;
    wlan_header->hosttime = 0;
    wlan_header->phytype = 0;    // Not used for now
    wlan_header->channel = 0;
    wlan_header->datarate = 0;   // datarate is in units of 100kbps.
    wlan_header->antenna = 0;    // Not used for now
    wlan_header->priority = 0;   // Not used for now
    wlan_header->ssi_type = 0;   // Not used for now
    wlan_header->ssi_signal = 0;
    wlan_header->ssi_noise = 0;
    wlan_header->preamble = 0;   // Not used for now
    wlan_header->encoding = 0;   // Not used for now

    return pktHdr.len;
  } else {
    return (0);                 // Noting to read
  }
}

int openPacketPRISM54g

(

char *

devname

)

Definition at line 122 of file prism54g.c.

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

Referenced by openPacket().

{
  ca.pcap = pcap_open_live(devname, 3000, 1, 0, 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 closePacketPRISM54g

(

void

)

Definition at line 134 of file prism54g.c.

References CaptureArg_t::pcap.

Referenced by closePacket().

{
  pcap_close(ca.pcap);
}