added cardmode and sniffer

1 files changed, 97 insertions, 0 deletions

diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
new file mode 100644
index 0000000..62c2940
--- a/dev/null
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
@@ -0,0 +1,97 @@
+/* 
+ * Set card modes for sniffing
+ *
+ * $Id$
+ */
+
+#include "cardmode.hh"
+
+/* main card into monitor function */
+int card_into_monitormode (void *orighandle, char *device, int cardtype)
+{
+  int datalink; /* used for getting the pcap datalink type */
+  char CiscoRFMON[35] = "/proc/driver/aironet/";
+  FILE *CISCO_CONFIG_FILE;
+  char errbuf[PCAP_ERRBUF_SIZE];
+  pcap_t *handle;
+  
+  handle = (pcap_t *)orighandle;
+
+  /* Checks if we have a device to sniff on */
+  if(device == NULL)
+  {
+      wl_logerr("No device given");
+      return 0;
+  }
+  
+  /* Setting the prmiscous and up flag to the interface */
+  if (!card_set_promisc_up(device))
+  {
+    wl_logerr("Cannot set interface to promisc mode: %s", strerror(errno));
+    return 0;
+  } 
+  wl_loginfo("Interface set to promisc mode");
+  
+  /* Check the cardtype and executes the commands to go into monitor mode */
+  if (cardtype == CARD_TYPE_CISCO)
+  {
+      /* bring the sniffer into rfmon  mode */
+      snprintf(CiscoRFMON, sizeof(CiscoRFMON), DEFAULT_PATH, device);
+      if((CISCO_CONFIG_FILE = fopen(CiscoRFMON,"w")) == NULL)
+      {
+	  wl_logerr("Cannot open config file: %s", strerror(errno));
+	  return 0;
+      }
+      fputs ("Mode: r",CISCO_CONFIG_FILE);
+      fputs ("Mode: y",CISCO_CONFIG_FILE);
+      fputs ("XmitPower: 1",CISCO_CONFIG_FILE);
+      fclose(CISCO_CONFIG_FILE);
+  }
+  else if (cardtype == CARD_TYPE_NG)
+  {
+      char wlanngcmd[62];
+      snprintf(wlanngcmd, sizeof(wlanngcmd), "%s %s lnxreq_wlansniff channel=1 enable=true", WLANCTL_PATH, device);
+      if (system(wlanngcmd) != 0)
+      {
+	  wl_logerr("Could not set %s in raw mode, check cardtype", device);
+	  return 0;
+      }
+  }
+  else if (cardtype == CARD_TYPE_HOSTAP)
+  {
+      wl_logerr("Got a host-ap card, nothing is implemented now");
+  }
+   
+  /* Check the interface if it is in the correct raw mode */
+  if((handle = pcap_open_live(device, BUFSIZ, 1, 0, errbuf)) == NULL)
+  {
+      wl_logerr("pcap_open_live() failed: %s", strerror(errno));
+      return 0;
+  }
+  
+#ifdef HAVE_PCAP_NONBLOCK
+  pcap_setnonblock(handle, 1, errstr);
+#endif
+  
+  /* getting the datalink type */
+  datalink = pcap_datalink(handle);
+  
+  if (datalink != DLT_IEEE802_11) /* Rawmode is IEEE802_11 */
+  {
+      wl_loginfo("Interface %s does not work in the correct 802.11 raw mode", device);
+      pcap_close(handle); 
+      return 0;
+  }
+  wl_loginfo("Your successfully listen on %s in 802.11 raw mode", device);
+  
+  return 1;
+}
+
+/* Set card into promisc mode */
+int card_set_promisc_up (const char *device)
+{
+  char ifconfigcmd[32];
+  snprintf(ifconfigcmd, sizeof(ifconfigcmd), SBIN_PATH, device);
+
+  return (system(ifconfigcmd) ? 1 : 0);
+}