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-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc122
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh2
2 files changed, 68 insertions, 56 deletions
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
index def1a4b..1add34c 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
@@ -1,133 +1,143 @@
/*
* 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: %s", strerror(errno));
+ 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, "%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");
char hostapcmd[250];
snprintf(hostapcmd, sizeof(hostapcmd) -1, "%s %s monitor 2", IWPRIV_PATH, device);
if (system(hostapcmd) !=0)
{
wl_logerr("Could not set %s in raw mode, check cardtype", device);
return 0;
}
}
-
+
+ /* 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);
+
+ 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)
{
- struct ifconf ifc;
- struct ifreq ifr_x[50];
- u_int i;
- int sockfd, err;
- err=0;
- /* opening a socket for issuing the iocalls */
- sockfd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
-
- if (sockfd < 0)
+ 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 - mjm proove that please*/
+ /* In case of an error */
perror("socket");
- return 1;
+ 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, ");
+ return 0;
}
- /* Define room for 50 interfaces */
- ifc.ifc_len = 50 * sizeof(struct ifreq);
- ifc.ifc_req = ifr_x;
- /* Get the config of the interfaces */
- err = ioctl(sockfd, SIOCGIFCONF, &ifc);
- if (err == -1) return 1;
- /* For each interface*/
- for (i = 0; i < ifc.ifc_len / sizeof(struct ifreq); i++)
- {
- /* To complete , should get the IP, if no is assigned, asign one */
- /*err = ioctl(sockfd, SIOCGIFADDR, &ifr_x[i]);
- if (err == -1) perror("SIOCGIFADDR: ");
- printf ("Address: %s\n",Sock_ntop_host(ifr_x[i].ifr_addr.sa_family,sizeof(ifr_x[i].ifr_addr.sa_family)));
- */
- if(strncmp(ifr_x[i].ifr_name,device,5) == 0)
- {
- /* Get the flags */
- err = ioctl(sockfd, SIOCGIFFLAGS, &ifr_x[i]);
- if (err == -1)
- {
- perror("SIOCGIFFLAGS: ");
- return 1;
- }
- /* Check if the Interface is UP and PROMISC */
- if (ifr_x[i].ifr_flags & IFF_PROMISC && ifr_x[i].ifr_flags & IFF_UP)
- {
- /* only debug text */
- printf ("%s is PROMISC and UP \n",ifr_x[i].ifr_name);
- }
- else
- {
- /* Set the promisc flag to the interface */
- ifr_x[i].ifr_flags=ifr_x[i].ifr_flags+IFF_PROMISC;
- err = ioctl(sockfd, SIOCSIFFLAGS, &ifr_x[i]);
- if (err == -1)
- {
- /* Could not set the interface into promisc mode */
- perror("SIOCSIFFLAGS: ");
- }
- }
- }
- }
- /* All is fine */
+ /* 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, ");
return 0;
+ }
+
+ if(ifr.ifr_flags && IFF_UP)
+ {
+ printf("%s is ok\n", device);
+ return 1;
+ }
+ else
+ {
+ printf("%s flags could not be set", device);
+ return 0;
+ }
}
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
index 7750fb6..babb109 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
@@ -1,41 +1,43 @@
/* $Id$ */
#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 <linux/if.h>
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_HOSTAP 3
/* only for now, until we have the daemon running */
/*the config file should provide these information */
#define CARD_TYPE CARD_TYPE_HOSTAP
#define SBIN_PATH "/sbin/ifconfig %s promisc up"
#define WLANCTL_PATH "/sbin/wlanctl-ng"
#define IWPRIV_PATH "/sbin/iwpriv"
/* Prototypes */
+int card_check_rfmon_datalink (char *device);
int card_into_monitormode (pcap_t **, char *, int);
int card_set_promisc_up (const char *);
#endif /* CARDMODE_HH */