fd close

2 files changed, 13 insertions, 6 deletions

diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
index 9e0a772..29dcc75 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
@@ -1,210 +1,216 @@
 /* 
  * Set card modes for sniffing
  *
  * $Id$
  */
 
 #include "cardmode.hh"
 #include "wl_log.hh"
 
 /* main card into monitor function */
 int card_into_monitormode (pcap_t **orighandle, char *device, int cardtype)
 {
   char CiscoRFMON[35] = "/proc/driver/aironet/";
   FILE *CISCO_CONFIG_FILE;
 
   /* Checks if we have a device to sniff on */
   if(device == NULL)
   {
       wl_logerr("No device given");
       return 0;
   }
   
   /* Setting the promiscous and up flag to the interface */
   if (!card_set_promisc_up(device))
   {
     wl_logerr("Cannot set interface to promisc mode");
     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) - 1, 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) - 1, "$(which wlanctl-ng) %s lnxreq_wlansniff channel=%d enable=true", device, 1);
       if (system(wlanngcmd) != 0)
       {
           wl_logerr("Could not set %s in raw mode, check cardtype", device);
           return 0;
       }
   }
   else if (cardtype == CARD_TYPE_HOSTAP)
   {
       wl_logerr("Got a host-ap card, nothing is implemented now");
      char hostapcmd[250];
      snprintf(hostapcmd, sizeof(hostapcmd) -1, "$(which iwpriv) %s monitor 2 %d", device,1);
      if (system(hostapcmd) !=0)
      {
          wl_logerr("Could not set %s in raw mode, check cardtype", device);
         return 0;
      }
   }
   else if (cardtype == CARD_TYPE_ORINOCCO || cardtype == CARD_TYPE_HOSTAP)
   {
          if (!card_set_channel (device, 1, CARD_TYPE_ORINOCCO))
          {
             wl_logerr("Could not set %s in raw mode, check cardtype", device);
             return 0;
       }
       else
       {
             wl_loginfo("Successfully set %s into raw mode",device);
       }
   }
 
   /* Setting the promiscous and up flag to the interface */
   if (!card_check_rfmon_datalink(device))
   {
     wl_logerr("Cannot set interface to rfmon mode");
     return 0;
   }
   else 
   {
     wl_loginfo("Interface set to rfmon mode");
   }
   return 1;
 }
 
 /* Check card is in the rfmon mode */
 int card_check_rfmon_datalink (char *device)
 {
   int datalinktype=0;
   pcap_t *phandle;
   phandle = pcap_open_live(device, 65,0,0,NULL);
   datalinktype = pcap_datalink (phandle);
   pcap_close(phandle);
 
   if (datalinktype != DLT_IEEE802_11) /* Rawmode is IEEE802_11 */
     {
         return 0;
     }
   else
   {
     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)
 {
     int err;
     /* First generate a socket to use with iocalls */
     int fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd < 0)
     {
         /* In case of an error */
         perror("socket");
         return 0;
     }
 
     /* Fill an empty an interface structure with the right flags (UP and Promsic) */
     struct ifreq ifr;
     strncpy(ifr.ifr_name, device,10);
     ifr.ifr_flags = IFF_UP + IFF_PROMISC;
     err = ioctl(fd, SIOCSIFFLAGS, &ifr);
     if (err < 0)
     {
             perror("Could not access the interface, ");
+            close(fd);
         return 0;
     }
     
     /* Get the informations back from the interface to check if the flags are correct */
     strncpy(ifr.ifr_name, device,10);
     ioctl(fd, SIOCGIFFLAGS, &ifr);
     if (err < 0)
     {
         perror("Could not access the interface, ");
+            close(fd);
         return 0;
     }
 
     if(ifr.ifr_flags && IFF_UP)
     {
-     printf("%s is ok\n", device);
-     return 1;
+            close(fd);
+        return 1;
     }
     else
     {
-     printf("%s flags could not be set", device);
-     return 0;
+                wl_logerr("Could not set promisc flag on %d", device);
+                close(fd);
+        return 0;
     }
 }
 
 /* Set channel (Wireless frequency) of the device */
 int card_set_channel (const char *device, int channel, int cardtype)
 {
     if (cardtype == CARD_TYPE_CISCO)
     {
             /* Cisco cards don't need channelswitching */
             return 1;
     }
     /* If it is a lucent orinocco card */ 
     else if (cardtype == CARD_TYPE_ORINOCCO || cardtype == CARD_TYPE_HOSTAP)
     {
             int fd;
            //Wireless tools structure for the iocalls
            struct iwreq ireq;  
            int *ptr;
            /* Socket needed to use the iocall to */
            fd = socket(AF_INET, SOCK_STREAM, 0);
+
            if ( fd == -1 ) {
               return -1;
            }
            ptr = (int *) ireq.u.name;
            // This is the monitor mode for 802.11 non-prism header
            ptr[0] = 2;
            ptr[1] = channel;
            strcpy(ireq.ifr_ifrn.ifrn_name, device);
            if (ioctl( fd, SIOCIWFIRSTPRIV + 0x8, &ireq)==0)
            {
                   /* All was fine... */
-                  // close(fd);
+                  close(fd);
                 wl_loginfo("Set channel %d on interface %s",channel, device);
                return 1;
            }
            else
-           {   /* iocall does not work */
+           {
+                      /* iocall does not work */
+                        close(fd);
                         wl_logerr("Could not set channel %d on %s, check cardtype",channel, device);
                         return 0;
            }
     }
     else if (cardtype == CARD_TYPE_NG)
         {
                 char wlanngcmd[62];
                 snprintf(wlanngcmd, sizeof(wlanngcmd) - 1, "$(which wlanctl-ng) %s lnxreq_wlansniff channel=%d enable=true", device, channel);
                 if (system(wlanngcmd) != 0)
                 {
                         wl_logerr("Could not set channel %d on %s, check cardtype",channel, device);
                         return 0;
                 }
 
         }
     /* For undefined situations */
         return 0;
 }
 
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
index 242d8c5..4a95956 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
@@ -1,47 +1,48 @@
 /* $Id$ */
 
 #ifndef CARDMODE_HH
 #define CARDMODE_HH
 
 #include <string.h>
 #include <stdlib.h>
 #include <errno.h>
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 #include <linux/if.h>
 #include <linux/wireless.h>
 
 #ifndef SIOCIWFIRSTPRIV
 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE
 #endif
 
 
 extern "C"
 {
 #include <net/bpf.h>
 #include <pcap.h>  
 }
 
 /* Defines, used for the card setup */
 #define   DEFAULT_PATH       "/proc/driver/aironet/%s/Config"
 #define   CISCO_STATUS       "/proc/driver/aironet/%s/Status"
         #define   CARD_TYPE_CISCO 1
         #define   CARD_TYPE_NG    2
         #define   CARD_TYPE_HOSTAP3
 #define   CARD_TYPE_ORINOCCO  4
 
 /* only for now, until we have the daemon running */
 /*the config file should provide these information */
 #define   CARD_TYPE              CARD_TYPE_HOSTAP
 
 /* Prototypes */
 int card_check_rfmon_datalink (char *device);
 int card_into_monitormode (pcap_t **, char *, int);
 int card_set_promisc_up (const char *);
 int card_set_channel (const char *device, int channel,int cardtype); 
 
 #endif /* CARDMODE_HH */