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-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc1
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh2
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/proto.cc9
-rw-r--r--noncore/net/wellenreiter/libwellenreiter/source/sniff.cc17
4 files changed, 11 insertions, 18 deletions
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
index a1c3945..3aaa4a7 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.cc
@@ -1,77 +1,78 @@
/*
* Set card modes for sniffing
*
* $Id$
*/
#include "cardmode.hh"
+#include "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;
pcap_t *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");
}
return 1;
}
/* Set card into promisc mode */
int card_set_promisc_up (const char *device)
{
char ifconfigcmd[32];
int retval=0;
snprintf(ifconfigcmd, sizeof(ifconfigcmd), SBIN_PATH, device);
retval = system(ifconfigcmd);
if(retval != 0)
return 0;
return 1;
}
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
index fad74cf..7c6a21d 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
+++ b/noncore/net/wellenreiter/libwellenreiter/source/cardmode.hh
@@ -1,37 +1,35 @@
/* $Id$ */
#ifndef CARDMODE_HH
#define CARDMODE_HH
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
extern "C"
{
#include <net/bpf.h>
#include <pcap.h>
}
-#include "../../libwellenreiter/source/log.hh"
-
/* Defines, used for the card setup */
#define DEFAULT_PATH "/proc/driver/aironet/%s/Config"
#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"
/* Prototypes */
int card_into_monitormode (pcap_t **, char *, int);
int card_set_promisc_up (const char *);
#endif /* CARDMODE_HH */
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/proto.cc b/noncore/net/wellenreiter/libwellenreiter/source/proto.cc
index 305f401..2ec23f4 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/proto.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/proto.cc
@@ -1,109 +1,108 @@
/*
* Communication protocol
*
* $Id$
*/
#include "proto.hh"
#include "sock.hh"
/* Send found network to GUI */
int send_network_found (const char *guihost, int guiport, void *structure)
{
wl_network_t *ptr;
char buffer[2048];
char temp[5];
ptr = (wl_network_t *)structure;
memset(buffer, 0, 2048);
/* Type = Found new net */
memcpy(buffer, "01", 2);
/* Set Net-type */
memset(temp, 0, sizeof(temp));
snprintf(temp, 2, "%d", ptr->net_type);
memcpy(buffer + 2, temp, 1);
/* Set channel */
memset(temp, 0, sizeof(temp));
if(ptr->channel < 10)
snprintf(temp, 3, "0%d", ptr->channel);
else
snprintf(temp, 3, "%d", ptr->channel);
memcpy(buffer + 3, temp, 2);
/* Set WEP y/n */
memset(temp, 0, sizeof(temp));
snprintf(temp, 2, "%d", ptr->wep);
memcpy(buffer + 5, temp, 1);
/* Set MAC address */
memcpy(buffer + 6, ptr->mac, 17);
/* Set lenght of ssid */
memset(temp, 0, sizeof(temp));
if(ptr->ssid_len > 99)
snprintf(temp, 4, "%d", ptr->ssid_len);
else if(ptr->ssid_len < 10)
snprintf(temp, 4, "00%d", ptr->ssid_len);
else
snprintf(temp, 4, "0%d", ptr->ssid_len);
memcpy(buffer + 23, temp, 3);
- fprintf( stderr, "Temp is %s\n", temp );
- fprintf( stderr, "ssid_len is %d\n", ptr->ssid_len );
-
/* Set ssid */
memcpy(buffer + 26, ptr->bssid, ptr->ssid_len);
- fprintf( stderr, "Buffer is %s\n", buffer );
-
/* Send prepared buffer to GUI */
+#ifdef DEBUG
+ wl_loginfo("Sending network to GUI: '%s'", buffer);
+#endif
+
sendcomm(guihost, guiport, buffer);
return 1;
}
/* Fill buffer into structur */
int get_network_found (void *structure, const char *buffer)
{
wl_network_t *ptr;
char temp[512];
ptr = (wl_network_t *)structure;
/* Get net type */
memset(temp, 0, sizeof(temp));
memcpy(temp, buffer + 2, 1);
ptr->net_type = atoi(temp);
/* Get channel */
memset(temp, 0, sizeof(temp));
memcpy(temp, buffer + 3, 2);
ptr->channel = atoi(temp);
/* Set WEP y/n */
memset(temp, 0, sizeof(temp));
memcpy(temp, buffer + 5, 1);
ptr->wep = atoi(temp);
/* Set MAC address */
memcpy(ptr->mac, buffer + 6, 17);
ptr->mac[17]='\0';
/* Set lenght of ssid */
memset(temp, 0, sizeof(temp));
memcpy(temp, buffer + 23, 3);
ptr->ssid_len = atoi(temp);
/* Set ssid */
memcpy(ptr->bssid, buffer + 26, ptr->ssid_len + 1);
return 1;
}
diff --git a/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc b/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc
index 84caf12..c703052 100644
--- a/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc
+++ b/noncore/net/wellenreiter/libwellenreiter/source/sniff.cc
@@ -1,264 +1,259 @@
/*
* rfmon mode sniffer
*
* $Id$
*/
#include "sniff.hh"
#include "ieee802_11.hh"
#include "extract.hh"
#include "log.hh"
#include "proto.hh"
/* Main function, checks packets */
void process_packets(const struct pcap_pkthdr *pkthdr, const unsigned char *packet, char *guihost, int guiport)
{
unsigned int caplen = pkthdr->caplen;
unsigned int length = pkthdr->len;
u_int16_t fc;
unsigned int HEADER_LENGTH;
/* pinfo holds all interresting information for us */
struct packetinfo pinfo;
struct packetinfo *pinfoptr;
/* wl_network_t will finally be set and send to the ui */
wl_network_t wl_net;
pinfoptr=&pinfo;
pinfoptr->isvalid = 0;
pinfoptr->pktlen = pkthdr->len;
if (caplen < IEEE802_11_FC_LEN)
{
/* This is a garbage packet, because is does not long enough
to hold a 802.11b header */
pinfoptr->isvalid = 0;
return;
}
/* Gets the framecontrol bits (2bytes long) */
fc = EXTRACT_LE_16BITS(packet);
HEADER_LENGTH = GetHeaderLength(fc);
if (caplen < HEADER_LENGTH)
{
/* This is a garbage packet, because it is not long enough
to hold a correct header of its type */
pinfoptr->isvalid = 0;
return;
}
/* Decode 802.11b header out of the packet */
if (decode_80211b_hdr(packet,pinfoptr) == 0)
{
/* Justification of the ofset to further process the packet */
length -= HEADER_LENGTH;
caplen -= HEADER_LENGTH;
packet += HEADER_LENGTH;
}
else /* Something is wrong,could not be a correct packet */
return;
switch (FC_TYPE(fc))
{
/* Is it a managemnet frame? */
case T_MGMT:
switch (FC_SUBTYPE(fc))
{
case ST_BEACON:
if (handle_beacon(fc, packet,pinfoptr) ==0)
{
if (!strcmp(pinfoptr->desthwaddr,"ff:ff:ff:ff:ff:ff") == 0)
{
/* Every beacon must have the broadcast as destination
so it must be a shitti packet */
pinfoptr->isvalid = 0;
return;
}
if (pinfoptr->cap_ESS == pinfoptr->cap_IBSS)
{
/* Only one of both are possible, so must be
a noise packet, if this comes up */
pinfoptr->isvalid = 0;
return;
}
if (pinfoptr->channel < 1 || pinfoptr->channel > 14)
{
/* Only channels between 1 and 14 are possible
others must be noise packets */
pinfoptr->isvalid = 0;
return;
}
- printf( "cap_ESS is %d, cap_IBSS is %d\n", pinfoptr->cap_ESS, pinfoptr->cap_IBSS );
-
/* Here should be the infos to the gui issued */
if (pinfoptr->cap_ESS == 1 &&pinfoptr->cap_IBSS ==0)
{
wl_loginfo("Found an access point");
wl_net.net_type=1;
}
else if(pinfoptr->cap_ESS == 0 && pinfoptr->cap_IBSS == 2)
{
wl_loginfo("Found an ad-hoc network");
wl_net.net_type=2;
}
+
if (strcmp (pinfoptr->ssid,NONBROADCASTING) ==0)
- {
wl_loginfo("Net is a non-broadcasting network");
- }
else
- {
wl_loginfo("SSID is: %s", pinfoptr->ssid);
- // wl_net.bssid=pinfoptr->ssid;
- }
+
+ wl_loginfo("SSID is: %s", pinfoptr->ssid);
+ memcpy(wl_net.bssid, pinfoptr->ssid, sizeof(wl_net.bssid)-1);
wl_loginfo("SSID length is: %d", pinfoptr->ssid_len);
wl_net.ssid_len=pinfoptr->ssid_len;
wl_loginfo("Channel is: %d", pinfoptr->channel);
wl_net.channel=pinfoptr->channel;
wl_net.wep=pinfoptr->cap_WEP;
wl_loginfo("Mac is: %s", pinfoptr->sndhwaddr);
memcpy(wl_net.mac, pinfoptr->sndhwaddr, sizeof(wl_net.mac)-1);;
- wl_loginfo("SSID is: %s", pinfoptr->ssid);
- memcpy(wl_net.bssid, pinfoptr->ssid, sizeof(wl_net.bssid)-1);
-
- // printf ("\n\tDest : %s\n",pinfoptr->desthwaddr);
+
send_network_found((char *)guihost, guiport, &wl_net);
wl_loginfo("Sent network to GUI '%s:%d'", guihost, guiport);
}
break;
+
default:
wl_logerr("Unknown IEEE802.11 frame subtype (%d)", FC_SUBTYPE(fc));
break;
} /* End of switch over different mgt frame types */
break;
case T_CTRL:
wl_loginfo("Received control frame, not implemented yet");
break;
case T_DATA:
wl_loginfo("Received date frame, not implemented yet");
break;
default:
wl_logerr("Unknown IEEE802.11 frame type (%d)", FC_TYPE(fc));
break;
}
}
/* This decodes the 802.11b frame header out of the 802.11b packet
all the infos is placed into the packetinfo structure */
int decode_80211b_hdr(const u_char *p,struct packetinfo *ppinfo)
{
const struct mgmt_header_t *mgthdr = (const struct mgmt_header_t *) p;
ppinfo->fcsubtype = FC_SUBTYPE(mgthdr->fc);
/* Get the sender, bssid and dest mac address */
etheraddr_string(mgthdr->bssid,ppinfo->bssid);
etheraddr_string(mgthdr->da,ppinfo->desthwaddr);
etheraddr_string(mgthdr->sa,ppinfo->sndhwaddr);
ppinfo->fc_wep = FC_WEP(mgthdr->fc);
return 0;
}
void etheraddr_string(register const u_char *ep, char *text)
{
static char hex[] = "0123456789abcdef";
register unsigned int i, j;
register char *cp;
char buf[sizeof("00:00:00:00:00:00\0")];
cp = buf;
if ((j = *ep >> 4) != 0)
{
*cp++ = hex[j];
}
else
{
*cp++ = '0';
}
*cp++ = hex[*ep++ & 0xf];
for (i = 5; (int)--i >= 0;)
{
*cp++ = ':';
if ((j = *ep >> 4) != 0)
{
*cp++ = hex[j];
}
else
{
*cp++ = '0';
}
*cp++ = hex[*ep++ & 0xf];
}
*cp = '\0';
strcpy(text,buf);
}
/* beacon handler */
int handle_beacon(u_int16_t fc, const u_char *p,struct packetinfo *ppinfo)
{
struct mgmt_body_t pbody;
int offset = 0;
/* Get the static informations out of the packet */
memset(&pbody, 0, sizeof(pbody));
memcpy(&pbody.timestamp, p, 8);
offset += 8;
pbody.beacon_interval = EXTRACT_LE_16BITS(p+offset);
offset += 2;
pbody.capability_info = EXTRACT_LE_16BITS(p+offset);
offset += 2;
/* Gets the different flags out of the capabilities */
ppinfo->cap_ESS = CAPABILITY_ESS(pbody.capability_info);
ppinfo->cap_IBSS = CAPABILITY_IBSS(pbody.capability_info);
ppinfo->cap_WEP = CAPABILITY_PRIVACY(pbody.capability_info);
/* Gets the tagged elements out of the packets */
while (offset + 1 < ppinfo->pktlen)
{
switch (*(p + offset))
{
case E_SSID:
memcpy(&(pbody.ssid),p+offset,2); offset += 2;
if (pbody.ssid.length > 0)
{
memcpy(&(pbody.ssid.ssid),p+offset,pbody.ssid.length); offset += pbody.ssid.length;
pbody.ssid.ssid[pbody.ssid.length]='\0';
if (strcmp((char *)pbody.ssid.ssid,"")==0)
memcpy(ppinfo->ssid, NONBROADCASTING, sizeof(ppinfo->ssid));
else
memcpy(ppinfo->ssid, pbody.ssid.ssid, sizeof(ppinfo->ssid));
ppinfo->ssid_len = pbody.ssid.length;
}
break;
case E_CHALLENGE:
memcpy(&(pbody.challenge),p+offset,2); offset += 2;
if (pbody.challenge.length > 0)
{
memcpy(&(pbody.challenge.text),p+offset,pbody.challenge.length); offset += pbody.challenge.length;
pbody.challenge.text[pbody.challenge.length]='\0';
}
break;
case E_RATES:
memcpy(&(pbody.rates),p+offset,2); offset += 2;
if (pbody.rates.length > 0)
{
memcpy(&(pbody.rates.rate),p+offset,pbody.rates.length); offset += pbody.rates.length;
}
break;
case E_DS:
memcpy(&(pbody.ds),p+offset,3); offset +=3;