+++ /dev/null
-#!/usr/bin/make
-
-CC = gcc
-CFLAGS = -O3
-LDFLAGS = -lpcap
-
-TARGETS = hdw-sniff
-
-all: $(TARGETS)
-
-hdw-sniff:
- $(CC) $(CFLAGS) -Wall list.c hdw_outlib.c hdw-sniff.c $(LDFLAGS) \
- -o hdw-sniff
-# $(CC) $(CFLAGS) -Wall hdw-sniff.c $(LDFLAGS) -o hdw-sniff
-
+++ /dev/null
-/*
- * hdw-sniff, sniffer using pcap lib
- *
- * author: hackbard@hackdaworld.dyndns.org
- */
-
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/socket.h>
-#include <time.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <pcap.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-
-/* IEEE 802.3 stuff -- i will concentrate on .11 stuff before! */
-#include <netinet/if_ether.h> /* for ethhdr struct */
-#include <netinet/ip.h> /* ip */
-#include <netinet/in.h> /* in_addr , inet_ntoa */
-#include <netinet/tcp.h> /* tcp header and protocols */
-
-/* IEEE 802.11 stuff -- will become one include later ... */
-#include "ieee80211.h" /* from hunz's aeolus, short hostap_wlan.h */
-#include "ieee802_11.h" /* from pcmcia-cs */
-
-#include "hdw-sniff.h" /* my functions */
-
-/* global variables */
-int file_fd=0;
-
-int main(int argc, char *argv[]) {
-
- char pcap_error[PCAP_ERRBUF_SIZE];
- pcap_t *pcap_handle;
- int pcap_fd,foo_fd;
- fd_set pcap_fd_set;
- struct timeval fd_set_tv;
- char sys_call[30];
- struct info_struct my_info_struct;
-
- /* parse the arguments */
- if(argc<3) {
- printf("usage: %s <interface> <monitor mode> <logfile>\n",
- argv[0]);
- return 0;
- }
- if(argc!=4) {
- printf("no logfile specified, writing to stdout ...\n");
- }
- else {
- if((file_fd=open(argv[3],O_RDWR | O_CREAT))!=0) {
- printf("writing to logfile %s ...\n",argv[3]);
- dprintf(file_fd,"|iv - --|id|crypted_snap - --|\n");
- }
- else {
- printf("can't open logfile. not logged to file!\n");
- }
- }
-
- /* setting up device and set monitor mode */
- if(atoi(argv[2])==1) {
- printf("setting to monitor mode\n");
- if(strncmp(argv[1],"wlan",4)==0)
- sprintf(sys_call,"iwpriv %s monitor 3",argv[1]);
- if(strncmp(argv[1],"eth",3)==0)
- sprintf(sys_call,"ifconfig %s promisc",argv[1]);
- system(sys_call);
- }
- printf("setting up interface\n");
- sprintf(sys_call,"ifconfig %s up",argv[1]);
- system(sys_call);
-
- /* start pcap session */
- pcap_handle=pcap_open_live(argv[1],BUFSIZ,1,-1,pcap_error);
- if(pcap_handle==NULL) {
- printf("%s: %s\n",argv[0],pcap_error);
- return 1;
- }
-
- /* set non blocking */
- if((pcap_setnonblock(pcap_handle,1,pcap_error))==-1) {
- printf("%s: %s\n",argv[0],pcap_error);
- return 1;
- }
-
- /* set info struct */
- my_info_struct.count=0;
- my_info_struct.mmode=argv[2][0];
- my_info_struct.ssid_list=(struct list *)malloc(sizeof(struct list));
- my_info_struct.ssid_list->next=NULL;
- // strcpy(my_info_struct.ssid_list->ssid,"test");
- strcpy(my_info_struct.dev,argv[1]);
-
- /* prepare for select */
- pcap_fd=pcap_fileno(pcap_handle);
-
- /* create file descriptor */
- if((foo_fd=socket(AF_INET,SOCK_DGRAM,0))==-1) {
- printf("unable to create socket foo_fd\n");
- return -1;
- }
-
- /* do loopp */
- while (1) {
-
- /* set pcap_fd */
- FD_ZERO(&pcap_fd_set);
- FD_SET(pcap_fd,&pcap_fd_set);
- fd_set_tv.tv_sec=0;
- fd_set_tv.tv_usec=200000;
-
- if((select(pcap_fd+1,&pcap_fd_set,NULL,NULL,&fd_set_tv)) && (FD_ISSET(pcap_fd,&pcap_fd_set))) pcap_dispatch(pcap_handle,-1,pcap_process,(u_char *)&my_info_struct);
- else if((hop_channel(&my_info_struct,foo_fd))==-1) {
- printf("channelhopping failed, aborting\n");
- return -1;
- }
- }
- return 0;
-}
-
-
-/* pcap_process callback function */
-void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
- const u_char *package) {
-
- /* local variables */
- char tmp_buf[20],tmp_buf1[10],tmp_buf2[32];
- unsigned char crypted_snap[12];
- struct linux_wlan_ng_prism_hdr *prism_hdr;
- struct ieee802_11_hdr *w_hdr;
- struct snaphdr *snap_hdr;
- struct beacon_struct *beacon_hdr;
- struct ethhdr *e_hdr;
- struct info_struct *my_info_struct;
- int i,p_o,w_o,e_o,i_o,special_o=0;
-
- my_info_struct=(struct info_struct *)info;
- ++(my_info_struct->count);
-
- /* cache offsets */
- p_o=((strncmp(my_info_struct->dev,"wlan",4)==0)?sizeof(struct linux_wlan_ng_prism_hdr):0);
- w_o=((strncmp(my_info_struct->dev,"wlan",4)==0)?sizeof(struct ieee802_11_hdr):0);
- e_o=sizeof(struct ethhdr);
- i_o=sizeof(struct iphdr);
-
- /* new package */
- printf("\n");
- printf("---> package %d ---- %s",my_info_struct->count,
- ctime((const time_t*)&(pcap_header->ts.tv_sec)));
-
- /* pcap header */
- printf("pcap header: ");
- printf("capture_length(dec): %d\t",pcap_header->caplen);
- printf("off_wire_length(dec): %d\n",pcap_header->len);
-
- /* wireless stuff */
- /* prism wlan ng headers */
- if((my_info_struct->mmode-0x30==1) &
- (strncmp(my_info_struct->dev,"wlan",4)==0)) {
- printf("prism header: (%d bytes)\n",p_o);
- prism_hdr=(struct linux_wlan_ng_prism_hdr *)package;
- printf("| message code/length: %d/%d |\t",prism_hdr->msgcode,
- prism_hdr->msglen);
- printf("device: %s |\n",prism_hdr->devname);
- /* ieee802.11 header */
-
- /* we need smaller w_hdr for non distributed frames */
- if((w_hdr->frame_ctl & (1<<8)) && (w_hdr->frame_ctl & (1<<9))) {
- printf("=> distributed packet !!!!11\n");
- } else w_o-=(sizeof(struct snaphdr)-sizeof(unsigned short));
-
- printf("ieee802.11 header: (%d bytes)\n",w_o);
- w_hdr=(struct ieee802_11_hdr *)(package+p_o);
-
- printf("fc: ");
- for(i=0;i<16;i++)
- printf("%s%d%s",(i==0?"|":""),
- (((w_hdr->frame_ctl) & (1<<i))>0?1:0),
- (i==15?"|\n":"|"));
- printf(" | v | t | s-t |t|f|m|r|p|m|w|o|\n");
- /* frame type */
- /* management */
- if(!(w_hdr->frame_ctl & 0x0c)) {
- tmp_buf1[0]='\0'; tmp_buf2[0]='\0';
- if((w_hdr->frame_ctl & IEEE802_11_STYPE_ASSOC_REQ)>0)
- strcpy(tmp_buf,"association request");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_ASSOC_RESP)>0)
- strcpy(tmp_buf,"association response");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_REASSOC_REQ)>0)
- strcpy(tmp_buf,"reassociation request");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_REASSOC_RESP)>0)
- strcpy(tmp_buf,"reassociation response");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_PROBE_REQ)>0)
- strcpy(tmp_buf,"probe request");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_PROBE_RESP)>0)
- strcpy(tmp_buf,"probe response");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_BEACON)==IEEE802_11_STYPE_BEACON) {
- beacon_hdr=(struct beacon_struct *)(package+p_o+w_o);
- beacon_hdr->ssid_s.elementid==0?strcpy(tmp_buf1,"essid = ")
- :strcpy(tmp_buf1,"ibssid = ");
- strncpy(tmp_buf2,beacon_hdr->ssid_s.ssid,
- beacon_hdr->ssid_s.length);
-
- tmp_buf2[beacon_hdr->ssid_s.length]='\0';
- strcpy(tmp_buf,"beacon");
- add_ssid_2_list(tmp_buf2,beacon_hdr->capability,
- my_info_struct->ssid_list);
- }
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_ATIM)>0)
- strcpy(tmp_buf,"announcement traffic indication message");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_DISASSOC)>0)
- strcpy(tmp_buf,"disassociation");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_AUTH)>0)
- strcpy(tmp_buf,"authentification");
- else if((w_hdr->frame_ctl & IEEE802_11_STYPE_DEAUTH)>0)
- strcpy(tmp_buf,"deauthentification");
- else strcpy(tmp_buf,"impossible situation \%) - go mail the author.");
- }
- else strcpy(tmp_buf,"control or data frame type");
-
- printf("=> %s\n",tmp_buf);
- if((strlen(tmp_buf1)>0) && (strlen(tmp_buf2)>0)) printf(" %s%s\n",
- tmp_buf1,
- tmp_buf2);
- printf("duration/id: 0x%x\n",w_hdr->duration_id);
- printf("version check ... %s\n",
- ((w_hdr->frame_ctl & IEEE802_11_FCTL_VERS)==0x00)?
- "ok":"unknown");
- }
-
- /* ethernet */
- if((strncmp(my_info_struct->dev,"eth",3)==0) |
- ((w_hdr->frame_ctl & IEEE802_11_FTYPE_DATA)==IEEE802_11_FTYPE_DATA)) {
-
- if((strncmp(my_info_struct->dev,"eth",3)==0)) {
- printf("ethernet: (%d bytes)\n",e_o);
- e_hdr=(struct ethhdr *)(package+p_o+w_o);
- special_o=sizeof(struct ethhdr);
- /* what types ? */
- printf("type = ");
- printf("%x ",ntohs(e_hdr->h_proto));
- printf("dest_addr = ");
- for(i=0;i<ETH_ALEN;i++)
- printf("%x%s",*(e_hdr->h_dest+i),((i==ETH_ALEN-1)?" ":":"));
- printf(" src_addr = ");
- for(i=0;i<ETH_ALEN;i++) printf("%x%s",*(e_hdr->h_source+i),
- ((i==ETH_ALEN-1)?"\n":":"));
- if((ntohs(e_hdr->h_proto)==ETH_P_IP))
- parse_ip(package+p_o+w_o+e_o);
- }
- else {
- snap_hdr=(struct snaphdr *)(package+p_o+w_o);
- if((snap_hdr->snap[0]==0xaa) &
- (snap_hdr->snap[1]==0xaa) &
- (snap_hdr->snap[2]==0x03) &
- (snap_hdr->snap[3]==0x00) &
- (snap_hdr->snap[4]==0x00) &
- (snap_hdr->snap[5]==0x00)) {
- printf("- no encryption!\n");
- if(snap_hdr->proto==ntohs(ETH_P_IP)) {
- e_o=sizeof(struct snaphdr);
- parse_ip((char *)(snap_hdr+e_o));
- }
-
- }
- else {
- printf("- crypted packet!\n");
- /* print crypted snap - write into file */
- printf("snap: (iv(3) + index(1) + crypted snap(6)) ");
- for(i=0;i<10;i++) {
- printf("%x ",*(snap_hdr->snap+i));
- crypted_snap[i]=*(snap_hdr->snap+i);
- }
- /* xor with plain
- crypted_snap[4]^=0xaa;
- crypted_snap[5]^=0xaa;
- crypted_snap[6]^=0x03;
- crypted_snap[7]^=0x00;
- crypted_snap[8]^=0x00;
- crypted_snap[9]^=0x00;
- */
-
- printf("\n");
- crypted_snap[10]='\0';
- crypted_snap[11]='\n';
-
- if(file_fd>0) {
- printf("debug: saved to file\n");
- dprintf(file_fd,IVLINE,IVL_ARGS);
- }
- }
- }
- }
-
- /* dump it */
-#ifdef SHOW_HEX
- printf("all dump: (hex)\n");
- for(i=p_o+w_o+special_o;i<pcap_header->caplen;i++)
- printf("%x ",*(package+i));
- printf("\n");
-#endif
-#ifdef DEBUG_CHAR
- printf("all dump: (char)\n");
- for(i=p_o+w_o;i<pcap_header->caplen;i++)
- printf("%c ",*(package+i));
- printf("\n");
-#endif
-}
-
-int hop_channel(struct info_struct *info,int foo_fd) {
- if((info->mmode-0x30==1) && (strncmp(info->dev,"wlan",4)==0)) {
-
- struct iwreq my_iwreq;
-
- if (info->channel>=C_MAX) info->channel=1;
-
- memset(&my_iwreq,0,sizeof(my_iwreq));
- strcpy(my_iwreq.ifr_name,info->dev);
- my_iwreq.u.freq.e=0;
- my_iwreq.u.freq.m=info->channel;
- if((ioctl(foo_fd,SIOCSIWFREQ,&my_iwreq))==-1) {
- printf("unable to hop channels\n");
- perror("ioctl");
- return -1;
- }
- ++(info->channel);
- }
- return 0;
-}
-
-int parse_ip(char *ip_o) {
- struct iphdr *ip_hdr;
- int i;
-
- printf("ip protocol:\n");
- ip_hdr=(struct iphdr *)ip_o;
- printf("version = %x ",ip_hdr->version);
- printf("header_length = %x \n",ip_hdr->ihl);
- printf("service = %x ",ip_hdr->tos);
- printf("total_length(dec.) = %d \n",ip_hdr->tot_len);
- printf("source_ip: ");
- for(i=0;i<=3;++i) {
- printf("%d%s",
- (ip_hdr->saddr&(0xff<<(8*i)))>>(8*i),
- (i==3?"\n":"."));
- }
- printf("destination_ip: ");
- for(i=0;i<=3;++i) {
- printf("%d%s",
- (ip_hdr->daddr&(0xff<<(8*i)))>>(8*i),
- (i==3?"\n":"."));
- }
- printf("ip_id = %x ",ntohs(ip_hdr->id));
- printf("ip_offset = %x \n",ip_hdr->frag_off);
- printf("time2live = %x ip_proto = %x\n",ip_hdr->ttl,ip_hdr->protocol);
- /* how to continue */
- if(ip_hdr->protocol==IPPROTO_TCP)
- parse_tcp(ip_hdr+sizeof(struct iphdr));
- if(ip_hdr->protocol==IPPROTO_UDP)
- printf("udp package! get's parsed in the future\n");
- // printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
-}
-
-int parse_tcp(char *tcp_o) {
- struct tcphdr *tcp_hdr;
-
- printf("tcp protocol:\n");
- tcp_hdr=(struct tcphdr *)tcp_o;
- printf("source port: %d - dest port: %d\n",ntohs(tcp_hdr->source),
- ntohs(tcp_hdr->dest));
- printf("sequence: %d - ack sequence: %d\n",ntohs(tcp_hdr->seq),
- ntohs(tcp_hdr->ack_seq));
- printf("offset to data: %d - checksumm: %d\n",ntohs(tcp_hdr->doff)
- ,ntohs(tcp_hdr->check));
- return 1;
-}
+++ /dev/null
-#include <linux/wireless.h>
-#include "list.h"
-
-#define C_MAX 14
-#define IVLINE "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n"
-#define cs(n) crypted_snap[n]
-#define IVL_ARGS cs(0),cs(1),cs(2),cs(3),cs(4),cs(5),cs(6),cs(7),cs(8),cs(9)
-
-/* the pcap_process callback function */
-void pcap_process(u_char *count,const struct pcap_pkthdr *pcap_header,
- const u_char *package);
-
-/* snap header struct */
-struct snaphdr {
- unsigned char snap[6]; /* the six magic snap chars */
- unsigned short proto; /* protocol type */
-} __attribute__ ((packed));
-
-/* info struct */
-struct info_struct {
- int count; /* count packages */
- char dev[10]; /* device */
- char mmode; /* monitor type ... and later more */
- int channel; /* current freq channel */
- struct list *ssid_list; /* pointer to ssid list */
-};
-
-/* hop_chanel function */
-int hop_channel(struct info_struct *info,int foo_fd);
-int parse_ip(char *ip_o);
-int parse_tcp(char *tcp_o);
-
-/* ssid struct */
-struct ssid_struct {
- unsigned char elementid; /* element id */
- unsigned char length; /* length of ssid */
- unsigned char ssid[32]; /* ssid */
-} __attribute__ ((packed));
-
-/* beacon header */
-struct beacon_struct {
- long long timestamp; /* time stamp */
- unsigned short interval; /* beacon interval field */
- unsigned short capability; /* capability field */
- struct ssid_struct ssid_s; /* ssid field */
-} __attribute__ ((packed));
-
-/* association request header */
-struct asso_req_struct {
- unsigned short capability; /* capability field */
- unsigned short listeninterval; /* listen interval field */
- unsigned short ssid; /* ssid field */
- /* supported rates missing */
-} __attribute__ ((packed));
+++ /dev/null
-/* call out ieee802.11 information
- *
- * author: hackbard
- *
- */
-
-#define _GNU_SOURCE
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-char sys_call[20];
-
-int tell_ssid(char *ssid) {
- sprintf(sys_call,"flite \"new ssid. %s\"",ssid);
- system(sys_call);
- return 1;
-}
-
-int lcd_ssid(char *ssid,unsigned short cap) {
- int lcd_fd;
- char lcd_com[2];
- char c_msg[7];
-
- if((lcd_fd=open("/dev/lcd",O_WRONLY|O_NDELAY)) <= 0) {
- printf("failed to open lcd device");
- exit -1;
- }
-
- printf("debug: lcd_fd = %d\n",lcd_fd);
- strcpy(sys_call,ssid);
- lcd_com[0]=27;
- lcd_com[1]='c';
- write(lcd_fd,lcd_com,sizeof(lcd_com));
- lcd_com[0]=27;
- lcd_com[1]='h';
- write(lcd_fd,lcd_com,sizeof(lcd_com));
- if((1<<4 & cap)) sprintf(c_msg," wep");
- else sprintf(c_msg," no_wep");
- dprintf(lcd_fd,"ssid: %s\ncap: %x%s",sys_call,cap,c_msg);
- // write(lcd_fd,sys_call,sizeof(sys_call));
- close(lcd_fd);
- return 1;
-}
-
-
-
+++ /dev/null
-/* outlib.h - prototypes
- *
- * author: hackbard
- *
- */
-
-/* prototypes */
-int tell_ssid(char *ssid);
-int lcd_ssid(char *ssidi,unsigned short cap);
-
+++ /dev/null
-#ifndef IEEE80211_H
-#define IEEE80211_H
-
-typedef unsigned int u32;
-typedef unsigned short u16;
-typedef unsigned char u8;
-
-#include <endian.h>
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-#define le_to_host16(n) (n)
-#define host_to_le32(n) (n)
-#else
-#include <byteswap.h>
-#define le_to_host16(n) bswap_16(n)
-#define host_to_le32(n) bswap_32(n)
-#endif
-
-struct linux_wlan_ng_val {
- u32 did;
- u16 status, len;
- u32 data;
-} __attribute__ ((packed));
-
-struct linux_wlan_ng_prism_hdr {
- u32 msgcode, msglen;
- char devname[16];
- struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
- noise, rate, istx, frmlen;
-} __attribute__ ((packed));
-
-#define BIT(x) (1 << (x))
-
-#define WLAN_FC_PVER (BIT(1) | BIT(0))
-#define WLAN_FC_TODS BIT(8)
-#define WLAN_FC_FROMDS BIT(9)
-#define WLAN_FC_MOREFRAG BIT(10)
-#define WLAN_FC_RETRY BIT(11)
-#define WLAN_FC_PWRMGT BIT(12)
-#define WLAN_FC_MOREDATA BIT(13)
-#define WLAN_FC_ISWEP BIT(14)
-#define WLAN_FC_ORDER BIT(15)
-
-#define WLAN_FC_GET_TYPE(fc) (((fc) & (BIT(3) | BIT(2))) >> 2)
-#define WLAN_FC_GET_STYPE(fc) \
- (((fc) & (BIT(7) | BIT(6) | BIT(5) | BIT(4))) >> 4)
-
-#define WLAN_GET_SEQ_FRAG(seq) ((seq) & (BIT(3) | BIT(2) | BIT(1) | BIT(0)))
-#define WLAN_GET_SEQ_SEQ(seq) \
- (((seq) & (~(BIT(3) | BIT(2) | BIT(1) | BIT(0)))) >> 4)
-
-#define WLAN_FC_TYPE_MGMT 0
-#define WLAN_FC_TYPE_CTRL 1
-#define WLAN_FC_TYPE_DATA 2
-
-/* management */
-#define WLAN_FC_STYPE_ASSOC_REQ 0
-#define WLAN_FC_STYPE_ASSOC_RESP 1
-#define WLAN_FC_STYPE_REASSOC_REQ 2
-#define WLAN_FC_STYPE_REASSOC_RESP 3
-#define WLAN_FC_STYPE_PROBE_REQ 4
-#define WLAN_FC_STYPE_PROBE_RESP 5
-#define WLAN_FC_STYPE_BEACON 8
-#define WLAN_FC_STYPE_ATIM 9
-#define WLAN_FC_STYPE_DISASSOC 10
-#define WLAN_FC_STYPE_AUTH 11
-#define WLAN_FC_STYPE_DEAUTH 12
-
-/* control */
-#define WLAN_FC_STYPE_PSPOLL 10
-#define WLAN_FC_STYPE_RTS 11
-#define WLAN_FC_STYPE_CTS 12
-#define WLAN_FC_STYPE_ACK 13
-#define WLAN_FC_STYPE_CFEND 14
-#define WLAN_FC_STYPE_CFENDACK 15
-
-/* data */
-#define WLAN_FC_STYPE_DATA 0
-#define WLAN_FC_STYPE_DATA_CFACK 1
-#define WLAN_FC_STYPE_DATA_CFPOLL 2
-#define WLAN_FC_STYPE_DATA_CFACKPOLL 3
-#define WLAN_FC_STYPE_NULLFUNC 4
-#define WLAN_FC_STYPE_CFACK 5
-#define WLAN_FC_STYPE_CFPOLL 6
-#define WLAN_FC_STYPE_CFACKPOLL 7
-
-/* Authentication algorithms */
-#define WLAN_AUTH_OPEN 0
-#define WLAN_AUTH_SHARED_KEY 1
-
-#define WLAN_AUTH_CHALLENGE_LEN 128
-
-#define WLAN_CAPABILITY_ESS BIT(0)
-#define WLAN_CAPABILITY_IBSS BIT(1)
-#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
-#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
-#define WLAN_CAPABILITY_PRIVACY BIT(4)
-
-/* Status codes */
-#define WLAN_STATUS_SUCCESS 0
-#define WLAN_STATUS_UNSPECIFIED_FAILURE 1
-#define WLAN_STATUS_CAPS_UNSUPPORTED 10
-#define WLAN_STATUS_REASSOC_NO_ASSOC 11
-#define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
-#define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
-#define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
-#define WLAN_STATUS_CHALLENGE_FAIL 15
-#define WLAN_STATUS_AUTH_TIMEOUT 16
-#define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
-#define WLAN_STATUS_ASSOC_DENIED_RATES 18
-/* 802.11b */
-#define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
-#define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
-#define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
-
-/* Reason codes */
-#define WLAN_REASON_UNSPECIFIED 1
-#define WLAN_REASON_PREV_AUTH_NOT_VALID 2
-#define WLAN_REASON_DEAUTH_LEAVING 3
-#define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
-#define WLAN_REASON_DISASSOC_AP_BUSY 5
-#define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
-#define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
-#define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
-#define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
-
-
-/* Information Element IDs */
-#define WLAN_EID_SSID 0
-#define WLAN_EID_SUPP_RATES 1
-#define WLAN_EID_FH_PARAMS 2
-#define WLAN_EID_DS_PARAMS 3
-#define WLAN_EID_CF_PARAMS 4
-#define WLAN_EID_TIM 5
-#define WLAN_EID_IBSS_PARAMS 6
-#define WLAN_EID_CHALLENGE 16
-
-
-#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
-#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
-
-#endif
+++ /dev/null
-#ifndef _IEEE802_11_H
-#define _IEEE802_11_H
-
-#define IEEE802_11_DATA_LEN 2304
-/* Actually, the standard seems to be inconsistent about what the
- maximum frame size really is. S6.2.1.1.2 says 2304 octets, but the
- figure in section 7.1.2 says 2312 octects. */
-#define IEEE802_11_HLEN 30
-#define IEEE802_11_FRAME_LEN (IEEE802_11_DATA_LEN + IEEE802_11_HLEN)
-
-struct ieee802_11_hdr {
- u16 frame_ctl;
- u16 duration_id;
- u8 addr1[ETH_ALEN];
- u8 addr2[ETH_ALEN];
- u8 addr3[ETH_ALEN];
- u16 seq_ctl;
- u8 addr4[ETH_ALEN];
-} __attribute__ ((packed));
-
-/* Frame control field constants */
-#define IEEE802_11_FCTL_VERS 0x0002
-#define IEEE802_11_FCTL_FTYPE 0x000c
-#define IEEE802_11_FCTL_STYPE 0x00f0
-#define IEEE802_11_FCTL_TODS 0x0100
-#define IEEE802_11_FCTL_FROMDS 0x0200
-#define IEEE802_11_FCTL_MOREFRAGS 0x0400
-#define IEEE802_11_FCTL_RETRY 0x0800
-#define IEEE802_11_FCTL_PM 0x1000
-#define IEEE802_11_FCTL_MOREDATA 0x2000
-#define IEEE802_11_FCTL_WEP 0x4000
-#define IEEE802_11_FCTL_ORDER 0x8000
-
-#define IEEE802_11_FTYPE_MGMT 0x0000
-#define IEEE802_11_FTYPE_CTL 0x0004
-#define IEEE802_11_FTYPE_DATA 0x0008
-
-/* management */
-#define IEEE802_11_STYPE_ASSOC_REQ 0x0000
-#define IEEE802_11_STYPE_ASSOC_RESP 0x0010
-#define IEEE802_11_STYPE_REASSOC_REQ 0x0020
-#define IEEE802_11_STYPE_REASSOC_RESP 0x0030
-#define IEEE802_11_STYPE_PROBE_REQ 0x0040
-#define IEEE802_11_STYPE_PROBE_RESP 0x0050
-#define IEEE802_11_STYPE_BEACON 0x0080
-#define IEEE802_11_STYPE_ATIM 0x0090
-#define IEEE802_11_STYPE_DISASSOC 0x00A0
-#define IEEE802_11_STYPE_AUTH 0x00B0
-#define IEEE802_11_STYPE_DEAUTH 0x00C0
-
-/* control */
-#define IEEE802_11_STYPE_PSPOLL 0x00A0
-#define IEEE802_11_STYPE_RTS 0x00B0
-#define IEEE802_11_STYPE_CTS 0x00C0
-#define IEEE802_11_STYPE_ACK 0x00D0
-#define IEEE802_11_STYPE_CFEND 0x00E0
-#define IEEE802_11_STYPE_CFENDACK 0x00F0
-
-/* data */
-#define IEEE802_11_STYPE_DATA 0x0000
-#define IEEE802_11_STYPE_DATA_CFACK 0x0010
-#define IEEE802_11_STYPE_DATA_CFPOLL 0x0020
-#define IEEE802_11_STYPE_DATA_CFACKPOLL 0x0030
-#define IEEE802_11_STYPE_NULLFUNC 0x0040
-#define IEEE802_11_STYPE_CFACK 0x0050
-#define IEEE802_11_STYPE_CFPOLL 0x0060
-#define IEEE802_11_STYPE_CFACKPOLL 0x0070
-
-#define IEEE802_11_SCTL_FRAG 0x000F
-#define IEEE802_11_SCTL_SEQ 0xFFF0
-
-#endif /* _IEEE802_11_H */
-
+++ /dev/null
-/* manage sniffed stuff in linked lists
- *
- * author: hackbard@hackdaworld.dyndns.org
- *
- */
-
-#include "hdw_outlib.h"
-#include "list.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-// char sys_call[20];
-
-int add_ssid_2_list(char *ssid,unsigned short cap,struct list *my_list) {
-
- struct list *new_entry;
-
- if(my_list->next==NULL) {
- tell_ssid(ssid);
- lcd_ssid(ssid,cap);
- new_entry=(struct list *)malloc(sizeof(struct list));
- my_list->next=new_entry;
- strcpy(my_list->ssid,ssid);
- new_entry->next=NULL;
- } else if(!strcmp(my_list->ssid,ssid)) {
- /* do nothing! */
- } else {
- add_ssid_2_list(ssid,cap,my_list->next);
- }
- return 1;
-}
+++ /dev/null
-/*
- * list header file
- *
- */
-
-/* data structures */
-struct list {
- char ssid[32]; /* ssid */
- struct list *next; /* pointer to next list */
-};
-
-/* prototypes */
-int add_ssid_2_list(char *ssid,unsigned short cap, struct list *my_list);
--- /dev/null
+/*
+ * main.c - main hdw-sniff
+ *
+ * author: hackbard@hackdaworld.dyndns.org
+ *
+ */
+
+#include <stdio.h>
+#include "main.h"
+
+/* functions */
+int usage(void)
+{
+ puts("usage: hdw-sniff <options>");
+ puts("\toptions:\t-m <mode> \t1 monitoring, 2 managed");
+ puts("\t\t-d <device> \twlan0,eth0");
+ puts("\t\t-l <logfile>");
+ puts("\t\t-h \tdisplay this help message");
+ return -23;
+}
+
+int hop_channel(info_struct *info)
+{
+ struct iwreq iwreq;
+ if(info->current_channel>=CHANNEL_MAX) info->current_channel=1;
+ memset(&iwreq,0,sizeof(iwreq));
+ strcpy(iwreq.ifr_name,info->device);
+ iwreq.u.freq.e=0;
+ iwreq.u.freq.m=info->current_channel;
+ if(ioctl(info->channel_hop_fd,SIOCSIWFREQ,&iwreq)<0)
+ {
+ puts("unable to hop channel");
+ perror("ioctl");
+ return -23;
+ }
+ ++(info->current_channel;
+ return 23;
+}
+
+int main(int argc, char **argv)
+{
+ /* local variables */
+ char pcap_error[PCAP_ERRBUF_SIZE];
+ char sys_call[SYSCALL_MAX];
+
+ int pcap_fd,channel_hop_fd;;
+ int i;
+
+ fd_set pcap_fd_set;
+ struct timeval pcap_fd_set_tv;
+
+ struct info_struct info;
+
+
+ memset(&info,0,sizeof(struct info_struct));
+ /* default values */
+ info.caps=0;
+ info.logfile_fd=0;
+ info.quit=0;
+
+ /* parse arguments */
+ for(i=1;i<argc;i++)
+ {
+ if(argv[i][0]=='-')
+ {
+ switch(argv[i][1])
+ {
+ case 'h':
+ usage();
+ case 'm':
+ info.caps=((1<<atoi(argv[i+1]))&CAP_MODE_MASK)|info.caps;
+ ++i;
+ break;
+ case 'l':
+ if ((info.logfile_fd=open(argv[i+1],O_RDWR|O_CREAT))!=0)
+ printf("logfile -> %s\n",argv[i+1]);
+ else
+ puts("warning: can't write to logfile.");
+ ++i;
+ break;
+ case 'd':
+ strncpy(info.device,argv[i+1],MAX_DEV_CHARS);
+ ++i;
+ break;
+ }
+ } else usage();
+ }
+
+ /* setting up device */
+ if((info.caps&CAP_MODE_MASK)==MONITORING_MODE)
+ {
+ sprintf(sys_call,"iwpriv %s monitor %d",info.device,IWPRIV_M_MODE);
+ system(sys_call);
+ puts("set monitoring mode ...");
+ }
+ sprintf(sys_call,"ifconfig %s up",info.device);
+ system(sys_call);
+ puts("device up ...");
+
+ /* pcap */
+ if((info.pcap_handle=pcap_open_live(info.device,BUFSIZ,1,-1,pcap_error))==NULL)
+ {
+ printf("%s: %s\n",argv[0],pcap_error);
+ return -23;
+ }
+ pcap_fd=pcap_fileno(pcap_handle);
+ /* -> non blocking? */
+
+ info.channel_hop_fd=socket(AF_INET,SOCK_DGRAM,0);
+ /* socket fd for channel hopping */
+
+ /* watch pcap_fd for reading */
+ FD_ZERO(&pcap_fd);
+ FD_SET(pcap_fd,&pcap_fd_set);
+ fd_set_tv.tv_sec=PCAP_SELECT_SEC;
+ pcap_fd_set_tv.tv_usec=PCAP_SELECT_USEC;
+
+ /* parse packages until user breaks */
+ while(!(info.caps&CAP_QUIT_MASK))
+ {
+ if(select(pcap_fd+1,&pcap_fd_set,NULL,NULL,&pcap_fd_set_tv))
+ pcap_dispatch(pcap_handle,-1,parse_package,(unsigned char *)&info);
+ else
+ hop_channel(&info);
+ }
+
+ puts("bugreports: hackbard@hackdaworld.dyndns.org");
+ return 23;
+}
--- /dev/null
+/*
+ * main.h - main header file
+ *
+ * author: hackbard@hackdaworld.dyndns.org
+ *
+ */
+
+#include <stdio.h>
+
+
+#define SYSCALL_MAX 32
+#define MAX_DEV_CHARS 6
+#define PCAP_SELECT_SEC 0
+#define PCAP_SELECT_USEC 200000
+
+#define CAP_MODE_MASK 0x01
+#define CAP_QUIT_MASK 0x02
+
+#define MONITORING_MODE 0x01
+#define MANAGED_MODE 0x00
+#define QUIT_MODE 0x02
+
+#define IWPRIV_M_MODE 3
+
+
+/* typedefinitions */
+struct info_struct
+{
+ unsigned char caps; /* capabilities */
+ int logfile_fd; /* file descriptof for logfile */
+ char device[MAX_DEV_CHARS]; /* sniffed devie */
+ int channel_hop_fd; /* fd for channel hopping */
+};
+
+
+/* function prototypes */
+int usage(void);
--- /dev/null
+#!/usr/bin/make
+
+CC = gcc
+CFLAGS = -O3
+LDFLAGS = -lpcap
+
+TARGETS = hdw-sniff
+
+all: $(TARGETS)
+
+hdw-sniff:
+ $(CC) $(CFLAGS) -Wall list.c hdw_outlib.c hdw-sniff.c $(LDFLAGS) \
+ -o hdw-sniff
+# $(CC) $(CFLAGS) -Wall hdw-sniff.c $(LDFLAGS) -o hdw-sniff
+
--- /dev/null
+/*
+ * hdw-sniff, sniffer using pcap lib
+ *
+ * author: hackbard@hackdaworld.dyndns.org
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <pcap.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+
+/* IEEE 802.3 stuff -- i will concentrate on .11 stuff before! */
+#include <netinet/if_ether.h> /* for ethhdr struct */
+#include <netinet/ip.h> /* ip */
+#include <netinet/in.h> /* in_addr , inet_ntoa */
+#include <netinet/tcp.h> /* tcp header and protocols */
+
+/* IEEE 802.11 stuff -- will become one include later ... */
+#include "ieee80211.h" /* from hunz's aeolus, short hostap_wlan.h */
+#include "ieee802_11.h" /* from pcmcia-cs */
+
+#include "hdw-sniff.h" /* my functions */
+
+/* global variables */
+int file_fd=0;
+
+int main(int argc, char *argv[]) {
+
+ char pcap_error[PCAP_ERRBUF_SIZE];
+ pcap_t *pcap_handle;
+ int pcap_fd,foo_fd;
+ fd_set pcap_fd_set;
+ struct timeval fd_set_tv;
+ char sys_call[30];
+ struct info_struct my_info_struct;
+
+ /* parse the arguments */
+ if(argc<3) {
+ printf("usage: %s <interface> <monitor mode> <logfile>\n",
+ argv[0]);
+ return 0;
+ }
+ if(argc!=4) {
+ printf("no logfile specified, writing to stdout ...\n");
+ }
+ else {
+ if((file_fd=open(argv[3],O_RDWR | O_CREAT))!=0) {
+ printf("writing to logfile %s ...\n",argv[3]);
+ dprintf(file_fd,"|iv - --|id|crypted_snap - --|\n");
+ }
+ else {
+ printf("can't open logfile. not logged to file!\n");
+ }
+ }
+
+ /* setting up device and set monitor mode */
+ if(atoi(argv[2])==1) {
+ printf("setting to monitor mode\n");
+ if(strncmp(argv[1],"wlan",4)==0)
+ sprintf(sys_call,"iwpriv %s monitor 3",argv[1]);
+ if(strncmp(argv[1],"eth",3)==0)
+ sprintf(sys_call,"ifconfig %s promisc",argv[1]);
+ system(sys_call);
+ }
+ printf("setting up interface\n");
+ sprintf(sys_call,"ifconfig %s up",argv[1]);
+ system(sys_call);
+
+ /* start pcap session */
+ pcap_handle=pcap_open_live(argv[1],BUFSIZ,1,-1,pcap_error);
+ if(pcap_handle==NULL) {
+ printf("%s: %s\n",argv[0],pcap_error);
+ return 1;
+ }
+
+ /* set non blocking */
+ if((pcap_setnonblock(pcap_handle,1,pcap_error))==-1) {
+ printf("%s: %s\n",argv[0],pcap_error);
+ return 1;
+ }
+
+ /* set info struct */
+ my_info_struct.count=0;
+ my_info_struct.mmode=argv[2][0];
+ my_info_struct.ssid_list=(struct list *)malloc(sizeof(struct list));
+ my_info_struct.ssid_list->next=NULL;
+ // strcpy(my_info_struct.ssid_list->ssid,"test");
+ strcpy(my_info_struct.dev,argv[1]);
+
+ /* prepare for select */
+ pcap_fd=pcap_fileno(pcap_handle);
+
+ /* create file descriptor */
+ if((foo_fd=socket(AF_INET,SOCK_DGRAM,0))==-1) {
+ printf("unable to create socket foo_fd\n");
+ return -1;
+ }
+
+ /* do loopp */
+ while (1) {
+
+ /* set pcap_fd */
+ FD_ZERO(&pcap_fd_set);
+ FD_SET(pcap_fd,&pcap_fd_set);
+ fd_set_tv.tv_sec=0;
+ fd_set_tv.tv_usec=200000;
+
+ if((select(pcap_fd+1,&pcap_fd_set,NULL,NULL,&fd_set_tv)) && (FD_ISSET(pcap_fd,&pcap_fd_set))) pcap_dispatch(pcap_handle,-1,pcap_process,(u_char *)&my_info_struct);
+ else if((hop_channel(&my_info_struct,foo_fd))==-1) {
+ printf("channelhopping failed, aborting\n");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+
+/* pcap_process callback function */
+void pcap_process(u_char *info,const struct pcap_pkthdr *pcap_header,
+ const u_char *package) {
+
+ /* local variables */
+ char tmp_buf[20],tmp_buf1[10],tmp_buf2[32];
+ unsigned char crypted_snap[12];
+ struct linux_wlan_ng_prism_hdr *prism_hdr;
+ struct ieee802_11_hdr *w_hdr;
+ struct snaphdr *snap_hdr;
+ struct beacon_struct *beacon_hdr;
+ struct ethhdr *e_hdr;
+ struct info_struct *my_info_struct;
+ int i,p_o,w_o,e_o,i_o,special_o=0;
+
+ my_info_struct=(struct info_struct *)info;
+ ++(my_info_struct->count);
+
+ /* cache offsets */
+ p_o=((strncmp(my_info_struct->dev,"wlan",4)==0)?sizeof(struct linux_wlan_ng_prism_hdr):0);
+ w_o=((strncmp(my_info_struct->dev,"wlan",4)==0)?sizeof(struct ieee802_11_hdr):0);
+ e_o=sizeof(struct ethhdr);
+ i_o=sizeof(struct iphdr);
+
+ /* new package */
+ printf("\n");
+ printf("---> package %d ---- %s",my_info_struct->count,
+ ctime((const time_t*)&(pcap_header->ts.tv_sec)));
+
+ /* pcap header */
+ printf("pcap header: ");
+ printf("capture_length(dec): %d\t",pcap_header->caplen);
+ printf("off_wire_length(dec): %d\n",pcap_header->len);
+
+ /* wireless stuff */
+ /* prism wlan ng headers */
+ if((my_info_struct->mmode-0x30==1) &
+ (strncmp(my_info_struct->dev,"wlan",4)==0)) {
+ printf("prism header: (%d bytes)\n",p_o);
+ prism_hdr=(struct linux_wlan_ng_prism_hdr *)package;
+ printf("| message code/length: %d/%d |\t",prism_hdr->msgcode,
+ prism_hdr->msglen);
+ printf("device: %s |\n",prism_hdr->devname);
+ /* ieee802.11 header */
+
+ /* we need smaller w_hdr for non distributed frames */
+ if((w_hdr->frame_ctl & (1<<8)) && (w_hdr->frame_ctl & (1<<9))) {
+ printf("=> distributed packet !!!!11\n");
+ } else w_o-=(sizeof(struct snaphdr)-sizeof(unsigned short));
+
+ printf("ieee802.11 header: (%d bytes)\n",w_o);
+ w_hdr=(struct ieee802_11_hdr *)(package+p_o);
+
+ printf("fc: ");
+ for(i=0;i<16;i++)
+ printf("%s%d%s",(i==0?"|":""),
+ (((w_hdr->frame_ctl) & (1<<i))>0?1:0),
+ (i==15?"|\n":"|"));
+ printf(" | v | t | s-t |t|f|m|r|p|m|w|o|\n");
+ /* frame type */
+ /* management */
+ if(!(w_hdr->frame_ctl & 0x0c)) {
+ tmp_buf1[0]='\0'; tmp_buf2[0]='\0';
+ if((w_hdr->frame_ctl & IEEE802_11_STYPE_ASSOC_REQ)>0)
+ strcpy(tmp_buf,"association request");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_ASSOC_RESP)>0)
+ strcpy(tmp_buf,"association response");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_REASSOC_REQ)>0)
+ strcpy(tmp_buf,"reassociation request");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_REASSOC_RESP)>0)
+ strcpy(tmp_buf,"reassociation response");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_PROBE_REQ)>0)
+ strcpy(tmp_buf,"probe request");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_PROBE_RESP)>0)
+ strcpy(tmp_buf,"probe response");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_BEACON)==IEEE802_11_STYPE_BEACON) {
+ beacon_hdr=(struct beacon_struct *)(package+p_o+w_o);
+ beacon_hdr->ssid_s.elementid==0?strcpy(tmp_buf1,"essid = ")
+ :strcpy(tmp_buf1,"ibssid = ");
+ strncpy(tmp_buf2,beacon_hdr->ssid_s.ssid,
+ beacon_hdr->ssid_s.length);
+
+ tmp_buf2[beacon_hdr->ssid_s.length]='\0';
+ strcpy(tmp_buf,"beacon");
+ add_ssid_2_list(tmp_buf2,beacon_hdr->capability,
+ my_info_struct->ssid_list);
+ }
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_ATIM)>0)
+ strcpy(tmp_buf,"announcement traffic indication message");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_DISASSOC)>0)
+ strcpy(tmp_buf,"disassociation");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_AUTH)>0)
+ strcpy(tmp_buf,"authentification");
+ else if((w_hdr->frame_ctl & IEEE802_11_STYPE_DEAUTH)>0)
+ strcpy(tmp_buf,"deauthentification");
+ else strcpy(tmp_buf,"impossible situation \%) - go mail the author.");
+ }
+ else strcpy(tmp_buf,"control or data frame type");
+
+ printf("=> %s\n",tmp_buf);
+ if((strlen(tmp_buf1)>0) && (strlen(tmp_buf2)>0)) printf(" %s%s\n",
+ tmp_buf1,
+ tmp_buf2);
+ printf("duration/id: 0x%x\n",w_hdr->duration_id);
+ printf("version check ... %s\n",
+ ((w_hdr->frame_ctl & IEEE802_11_FCTL_VERS)==0x00)?
+ "ok":"unknown");
+ }
+
+ /* ethernet */
+ if((strncmp(my_info_struct->dev,"eth",3)==0) |
+ ((w_hdr->frame_ctl & IEEE802_11_FTYPE_DATA)==IEEE802_11_FTYPE_DATA)) {
+
+ if((strncmp(my_info_struct->dev,"eth",3)==0)) {
+ printf("ethernet: (%d bytes)\n",e_o);
+ e_hdr=(struct ethhdr *)(package+p_o+w_o);
+ special_o=sizeof(struct ethhdr);
+ /* what types ? */
+ printf("type = ");
+ printf("%x ",ntohs(e_hdr->h_proto));
+ printf("dest_addr = ");
+ for(i=0;i<ETH_ALEN;i++)
+ printf("%x%s",*(e_hdr->h_dest+i),((i==ETH_ALEN-1)?" ":":"));
+ printf(" src_addr = ");
+ for(i=0;i<ETH_ALEN;i++) printf("%x%s",*(e_hdr->h_source+i),
+ ((i==ETH_ALEN-1)?"\n":":"));
+ if((ntohs(e_hdr->h_proto)==ETH_P_IP))
+ parse_ip(package+p_o+w_o+e_o);
+ }
+ else {
+ snap_hdr=(struct snaphdr *)(package+p_o+w_o);
+ if((snap_hdr->snap[0]==0xaa) &
+ (snap_hdr->snap[1]==0xaa) &
+ (snap_hdr->snap[2]==0x03) &
+ (snap_hdr->snap[3]==0x00) &
+ (snap_hdr->snap[4]==0x00) &
+ (snap_hdr->snap[5]==0x00)) {
+ printf("- no encryption!\n");
+ if(snap_hdr->proto==ntohs(ETH_P_IP)) {
+ e_o=sizeof(struct snaphdr);
+ parse_ip((char *)(snap_hdr+e_o));
+ }
+
+ }
+ else {
+ printf("- crypted packet!\n");
+ /* print crypted snap - write into file */
+ printf("snap: (iv(3) + index(1) + crypted snap(6)) ");
+ for(i=0;i<10;i++) {
+ printf("%x ",*(snap_hdr->snap+i));
+ crypted_snap[i]=*(snap_hdr->snap+i);
+ }
+ /* xor with plain
+ crypted_snap[4]^=0xaa;
+ crypted_snap[5]^=0xaa;
+ crypted_snap[6]^=0x03;
+ crypted_snap[7]^=0x00;
+ crypted_snap[8]^=0x00;
+ crypted_snap[9]^=0x00;
+ */
+
+ printf("\n");
+ crypted_snap[10]='\0';
+ crypted_snap[11]='\n';
+
+ if(file_fd>0) {
+ printf("debug: saved to file\n");
+ dprintf(file_fd,IVLINE,IVL_ARGS);
+ }
+ }
+ }
+ }
+
+ /* dump it */
+#ifdef SHOW_HEX
+ printf("all dump: (hex)\n");
+ for(i=p_o+w_o+special_o;i<pcap_header->caplen;i++)
+ printf("%x ",*(package+i));
+ printf("\n");
+#endif
+#ifdef DEBUG_CHAR
+ printf("all dump: (char)\n");
+ for(i=p_o+w_o;i<pcap_header->caplen;i++)
+ printf("%c ",*(package+i));
+ printf("\n");
+#endif
+}
+
+int hop_channel(struct info_struct *info,int foo_fd) {
+ if((info->mmode-0x30==1) && (strncmp(info->dev,"wlan",4)==0)) {
+
+ struct iwreq my_iwreq;
+
+ if (info->channel>=C_MAX) info->channel=1;
+
+ memset(&my_iwreq,0,sizeof(my_iwreq));
+ strcpy(my_iwreq.ifr_name,info->dev);
+ my_iwreq.u.freq.e=0;
+ my_iwreq.u.freq.m=info->channel;
+ if((ioctl(foo_fd,SIOCSIWFREQ,&my_iwreq))==-1) {
+ printf("unable to hop channels\n");
+ perror("ioctl");
+ return -1;
+ }
+ ++(info->channel);
+ }
+ return 0;
+}
+
+int parse_ip(char *ip_o) {
+ struct iphdr *ip_hdr;
+ int i;
+
+ printf("ip protocol:\n");
+ ip_hdr=(struct iphdr *)ip_o;
+ printf("version = %x ",ip_hdr->version);
+ printf("header_length = %x \n",ip_hdr->ihl);
+ printf("service = %x ",ip_hdr->tos);
+ printf("total_length(dec.) = %d \n",ip_hdr->tot_len);
+ printf("source_ip: ");
+ for(i=0;i<=3;++i) {
+ printf("%d%s",
+ (ip_hdr->saddr&(0xff<<(8*i)))>>(8*i),
+ (i==3?"\n":"."));
+ }
+ printf("destination_ip: ");
+ for(i=0;i<=3;++i) {
+ printf("%d%s",
+ (ip_hdr->daddr&(0xff<<(8*i)))>>(8*i),
+ (i==3?"\n":"."));
+ }
+ printf("ip_id = %x ",ntohs(ip_hdr->id));
+ printf("ip_offset = %x \n",ip_hdr->frag_off);
+ printf("time2live = %x ip_proto = %x\n",ip_hdr->ttl,ip_hdr->protocol);
+ /* how to continue */
+ if(ip_hdr->protocol==IPPROTO_TCP)
+ parse_tcp(ip_hdr+sizeof(struct iphdr));
+ if(ip_hdr->protocol==IPPROTO_UDP)
+ printf("udp package! get's parsed in the future\n");
+ // printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
+}
+
+int parse_tcp(char *tcp_o) {
+ struct tcphdr *tcp_hdr;
+
+ printf("tcp protocol:\n");
+ tcp_hdr=(struct tcphdr *)tcp_o;
+ printf("source port: %d - dest port: %d\n",ntohs(tcp_hdr->source),
+ ntohs(tcp_hdr->dest));
+ printf("sequence: %d - ack sequence: %d\n",ntohs(tcp_hdr->seq),
+ ntohs(tcp_hdr->ack_seq));
+ printf("offset to data: %d - checksumm: %d\n",ntohs(tcp_hdr->doff)
+ ,ntohs(tcp_hdr->check));
+ return 1;
+}
--- /dev/null
+#include <linux/wireless.h>
+#include "list.h"
+
+#define C_MAX 14
+#define IVLINE "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n"
+#define cs(n) crypted_snap[n]
+#define IVL_ARGS cs(0),cs(1),cs(2),cs(3),cs(4),cs(5),cs(6),cs(7),cs(8),cs(9)
+
+/* the pcap_process callback function */
+void pcap_process(u_char *count,const struct pcap_pkthdr *pcap_header,
+ const u_char *package);
+
+/* snap header struct */
+struct snaphdr {
+ unsigned char snap[6]; /* the six magic snap chars */
+ unsigned short proto; /* protocol type */
+} __attribute__ ((packed));
+
+/* info struct */
+struct info_struct {
+ int count; /* count packages */
+ char dev[10]; /* device */
+ char mmode; /* monitor type ... and later more */
+ int channel; /* current freq channel */
+ struct list *ssid_list; /* pointer to ssid list */
+};
+
+/* hop_chanel function */
+int hop_channel(struct info_struct *info,int foo_fd);
+int parse_ip(char *ip_o);
+int parse_tcp(char *tcp_o);
+
+/* ssid struct */
+struct ssid_struct {
+ unsigned char elementid; /* element id */
+ unsigned char length; /* length of ssid */
+ unsigned char ssid[32]; /* ssid */
+} __attribute__ ((packed));
+
+/* beacon header */
+struct beacon_struct {
+ long long timestamp; /* time stamp */
+ unsigned short interval; /* beacon interval field */
+ unsigned short capability; /* capability field */
+ struct ssid_struct ssid_s; /* ssid field */
+} __attribute__ ((packed));
+
+/* association request header */
+struct asso_req_struct {
+ unsigned short capability; /* capability field */
+ unsigned short listeninterval; /* listen interval field */
+ unsigned short ssid; /* ssid field */
+ /* supported rates missing */
+} __attribute__ ((packed));
--- /dev/null
+/* call out ieee802.11 information
+ *
+ * author: hackbard
+ *
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+char sys_call[20];
+
+int tell_ssid(char *ssid) {
+ sprintf(sys_call,"flite \"new ssid. %s\"",ssid);
+ system(sys_call);
+ return 1;
+}
+
+int lcd_ssid(char *ssid,unsigned short cap) {
+ int lcd_fd;
+ char lcd_com[2];
+ char c_msg[7];
+
+ if((lcd_fd=open("/dev/lcd",O_WRONLY|O_NDELAY)) <= 0) {
+ printf("failed to open lcd device");
+ exit -1;
+ }
+
+ printf("debug: lcd_fd = %d\n",lcd_fd);
+ strcpy(sys_call,ssid);
+ lcd_com[0]=27;
+ lcd_com[1]='c';
+ write(lcd_fd,lcd_com,sizeof(lcd_com));
+ lcd_com[0]=27;
+ lcd_com[1]='h';
+ write(lcd_fd,lcd_com,sizeof(lcd_com));
+ if((1<<4 & cap)) sprintf(c_msg," wep");
+ else sprintf(c_msg," no_wep");
+ dprintf(lcd_fd,"ssid: %s\ncap: %x%s",sys_call,cap,c_msg);
+ // write(lcd_fd,sys_call,sizeof(sys_call));
+ close(lcd_fd);
+ return 1;
+}
+
+
+
--- /dev/null
+/* outlib.h - prototypes
+ *
+ * author: hackbard
+ *
+ */
+
+/* prototypes */
+int tell_ssid(char *ssid);
+int lcd_ssid(char *ssidi,unsigned short cap);
+
--- /dev/null
+#ifndef IEEE80211_H
+#define IEEE80211_H
+
+typedef unsigned int u32;
+typedef unsigned short u16;
+typedef unsigned char u8;
+
+#include <endian.h>
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define le_to_host16(n) (n)
+#define host_to_le32(n) (n)
+#else
+#include <byteswap.h>
+#define le_to_host16(n) bswap_16(n)
+#define host_to_le32(n) bswap_32(n)
+#endif
+
+struct linux_wlan_ng_val {
+ u32 did;
+ u16 status, len;
+ u32 data;
+} __attribute__ ((packed));
+
+struct linux_wlan_ng_prism_hdr {
+ u32 msgcode, msglen;
+ char devname[16];
+ struct linux_wlan_ng_val hosttime, mactime, channel, rssi, sq, signal,
+ noise, rate, istx, frmlen;
+} __attribute__ ((packed));
+
+#define BIT(x) (1 << (x))
+
+#define WLAN_FC_PVER (BIT(1) | BIT(0))
+#define WLAN_FC_TODS BIT(8)
+#define WLAN_FC_FROMDS BIT(9)
+#define WLAN_FC_MOREFRAG BIT(10)
+#define WLAN_FC_RETRY BIT(11)
+#define WLAN_FC_PWRMGT BIT(12)
+#define WLAN_FC_MOREDATA BIT(13)
+#define WLAN_FC_ISWEP BIT(14)
+#define WLAN_FC_ORDER BIT(15)
+
+#define WLAN_FC_GET_TYPE(fc) (((fc) & (BIT(3) | BIT(2))) >> 2)
+#define WLAN_FC_GET_STYPE(fc) \
+ (((fc) & (BIT(7) | BIT(6) | BIT(5) | BIT(4))) >> 4)
+
+#define WLAN_GET_SEQ_FRAG(seq) ((seq) & (BIT(3) | BIT(2) | BIT(1) | BIT(0)))
+#define WLAN_GET_SEQ_SEQ(seq) \
+ (((seq) & (~(BIT(3) | BIT(2) | BIT(1) | BIT(0)))) >> 4)
+
+#define WLAN_FC_TYPE_MGMT 0
+#define WLAN_FC_TYPE_CTRL 1
+#define WLAN_FC_TYPE_DATA 2
+
+/* management */
+#define WLAN_FC_STYPE_ASSOC_REQ 0
+#define WLAN_FC_STYPE_ASSOC_RESP 1
+#define WLAN_FC_STYPE_REASSOC_REQ 2
+#define WLAN_FC_STYPE_REASSOC_RESP 3
+#define WLAN_FC_STYPE_PROBE_REQ 4
+#define WLAN_FC_STYPE_PROBE_RESP 5
+#define WLAN_FC_STYPE_BEACON 8
+#define WLAN_FC_STYPE_ATIM 9
+#define WLAN_FC_STYPE_DISASSOC 10
+#define WLAN_FC_STYPE_AUTH 11
+#define WLAN_FC_STYPE_DEAUTH 12
+
+/* control */
+#define WLAN_FC_STYPE_PSPOLL 10
+#define WLAN_FC_STYPE_RTS 11
+#define WLAN_FC_STYPE_CTS 12
+#define WLAN_FC_STYPE_ACK 13
+#define WLAN_FC_STYPE_CFEND 14
+#define WLAN_FC_STYPE_CFENDACK 15
+
+/* data */
+#define WLAN_FC_STYPE_DATA 0
+#define WLAN_FC_STYPE_DATA_CFACK 1
+#define WLAN_FC_STYPE_DATA_CFPOLL 2
+#define WLAN_FC_STYPE_DATA_CFACKPOLL 3
+#define WLAN_FC_STYPE_NULLFUNC 4
+#define WLAN_FC_STYPE_CFACK 5
+#define WLAN_FC_STYPE_CFPOLL 6
+#define WLAN_FC_STYPE_CFACKPOLL 7
+
+/* Authentication algorithms */
+#define WLAN_AUTH_OPEN 0
+#define WLAN_AUTH_SHARED_KEY 1
+
+#define WLAN_AUTH_CHALLENGE_LEN 128
+
+#define WLAN_CAPABILITY_ESS BIT(0)
+#define WLAN_CAPABILITY_IBSS BIT(1)
+#define WLAN_CAPABILITY_CF_POLLABLE BIT(2)
+#define WLAN_CAPABILITY_CF_POLL_REQUEST BIT(3)
+#define WLAN_CAPABILITY_PRIVACY BIT(4)
+
+/* Status codes */
+#define WLAN_STATUS_SUCCESS 0
+#define WLAN_STATUS_UNSPECIFIED_FAILURE 1
+#define WLAN_STATUS_CAPS_UNSUPPORTED 10
+#define WLAN_STATUS_REASSOC_NO_ASSOC 11
+#define WLAN_STATUS_ASSOC_DENIED_UNSPEC 12
+#define WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG 13
+#define WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION 14
+#define WLAN_STATUS_CHALLENGE_FAIL 15
+#define WLAN_STATUS_AUTH_TIMEOUT 16
+#define WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA 17
+#define WLAN_STATUS_ASSOC_DENIED_RATES 18
+/* 802.11b */
+#define WLAN_STATUS_ASSOC_DENIED_NOSHORT 19
+#define WLAN_STATUS_ASSOC_DENIED_NOPBCC 20
+#define WLAN_STATUS_ASSOC_DENIED_NOAGILITY 21
+
+/* Reason codes */
+#define WLAN_REASON_UNSPECIFIED 1
+#define WLAN_REASON_PREV_AUTH_NOT_VALID 2
+#define WLAN_REASON_DEAUTH_LEAVING 3
+#define WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY 4
+#define WLAN_REASON_DISASSOC_AP_BUSY 5
+#define WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA 6
+#define WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA 7
+#define WLAN_REASON_DISASSOC_STA_HAS_LEFT 8
+#define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
+
+
+/* Information Element IDs */
+#define WLAN_EID_SSID 0
+#define WLAN_EID_SUPP_RATES 1
+#define WLAN_EID_FH_PARAMS 2
+#define WLAN_EID_DS_PARAMS 3
+#define WLAN_EID_CF_PARAMS 4
+#define WLAN_EID_TIM 5
+#define WLAN_EID_IBSS_PARAMS 6
+#define WLAN_EID_CHALLENGE 16
+
+
+#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
+#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
+
+#endif
--- /dev/null
+#ifndef _IEEE802_11_H
+#define _IEEE802_11_H
+
+#define IEEE802_11_DATA_LEN 2304
+/* Actually, the standard seems to be inconsistent about what the
+ maximum frame size really is. S6.2.1.1.2 says 2304 octets, but the
+ figure in section 7.1.2 says 2312 octects. */
+#define IEEE802_11_HLEN 30
+#define IEEE802_11_FRAME_LEN (IEEE802_11_DATA_LEN + IEEE802_11_HLEN)
+
+struct ieee802_11_hdr {
+ u16 frame_ctl;
+ u16 duration_id;
+ u8 addr1[ETH_ALEN];
+ u8 addr2[ETH_ALEN];
+ u8 addr3[ETH_ALEN];
+ u16 seq_ctl;
+ u8 addr4[ETH_ALEN];
+} __attribute__ ((packed));
+
+/* Frame control field constants */
+#define IEEE802_11_FCTL_VERS 0x0002
+#define IEEE802_11_FCTL_FTYPE 0x000c
+#define IEEE802_11_FCTL_STYPE 0x00f0
+#define IEEE802_11_FCTL_TODS 0x0100
+#define IEEE802_11_FCTL_FROMDS 0x0200
+#define IEEE802_11_FCTL_MOREFRAGS 0x0400
+#define IEEE802_11_FCTL_RETRY 0x0800
+#define IEEE802_11_FCTL_PM 0x1000
+#define IEEE802_11_FCTL_MOREDATA 0x2000
+#define IEEE802_11_FCTL_WEP 0x4000
+#define IEEE802_11_FCTL_ORDER 0x8000
+
+#define IEEE802_11_FTYPE_MGMT 0x0000
+#define IEEE802_11_FTYPE_CTL 0x0004
+#define IEEE802_11_FTYPE_DATA 0x0008
+
+/* management */
+#define IEEE802_11_STYPE_ASSOC_REQ 0x0000
+#define IEEE802_11_STYPE_ASSOC_RESP 0x0010
+#define IEEE802_11_STYPE_REASSOC_REQ 0x0020
+#define IEEE802_11_STYPE_REASSOC_RESP 0x0030
+#define IEEE802_11_STYPE_PROBE_REQ 0x0040
+#define IEEE802_11_STYPE_PROBE_RESP 0x0050
+#define IEEE802_11_STYPE_BEACON 0x0080
+#define IEEE802_11_STYPE_ATIM 0x0090
+#define IEEE802_11_STYPE_DISASSOC 0x00A0
+#define IEEE802_11_STYPE_AUTH 0x00B0
+#define IEEE802_11_STYPE_DEAUTH 0x00C0
+
+/* control */
+#define IEEE802_11_STYPE_PSPOLL 0x00A0
+#define IEEE802_11_STYPE_RTS 0x00B0
+#define IEEE802_11_STYPE_CTS 0x00C0
+#define IEEE802_11_STYPE_ACK 0x00D0
+#define IEEE802_11_STYPE_CFEND 0x00E0
+#define IEEE802_11_STYPE_CFENDACK 0x00F0
+
+/* data */
+#define IEEE802_11_STYPE_DATA 0x0000
+#define IEEE802_11_STYPE_DATA_CFACK 0x0010
+#define IEEE802_11_STYPE_DATA_CFPOLL 0x0020
+#define IEEE802_11_STYPE_DATA_CFACKPOLL 0x0030
+#define IEEE802_11_STYPE_NULLFUNC 0x0040
+#define IEEE802_11_STYPE_CFACK 0x0050
+#define IEEE802_11_STYPE_CFPOLL 0x0060
+#define IEEE802_11_STYPE_CFACKPOLL 0x0070
+
+#define IEEE802_11_SCTL_FRAG 0x000F
+#define IEEE802_11_SCTL_SEQ 0xFFF0
+
+#endif /* _IEEE802_11_H */
+
--- /dev/null
+/* manage sniffed stuff in linked lists
+ *
+ * author: hackbard@hackdaworld.dyndns.org
+ *
+ */
+
+#include "hdw_outlib.h"
+#include "list.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+// char sys_call[20];
+
+int add_ssid_2_list(char *ssid,unsigned short cap,struct list *my_list) {
+
+ struct list *new_entry;
+
+ if(my_list->next==NULL) {
+ tell_ssid(ssid);
+ lcd_ssid(ssid,cap);
+ new_entry=(struct list *)malloc(sizeof(struct list));
+ my_list->next=new_entry;
+ strcpy(my_list->ssid,ssid);
+ new_entry->next=NULL;
+ } else if(!strcmp(my_list->ssid,ssid)) {
+ /* do nothing! */
+ } else {
+ add_ssid_2_list(ssid,cap,my_list->next);
+ }
+ return 1;
+}
--- /dev/null
+/*
+ * list header file
+ *
+ */
+
+/* data structures */
+struct list {
+ char ssid[32]; /* ssid */
+ struct list *next; /* pointer to next list */
+};
+
+/* prototypes */
+int add_ssid_2_list(char *ssid,unsigned short cap, struct list *my_list);
--- /dev/null
+/*
+ * parse.c - parsing of pcap packages
+ *
+ * author: hackbard@hackdaworld.dyndns.org
+ *
+ */
+
+#include "parse.h"
+#include "802.11b.h"
+#include "main.h"
+#include "parse.h"
+
+
+int parse_package(unsigned char *info,const struct pcap_pkthdr *pcap_hdr,cont unsigned char *package)
+{
+ if(info->caps&MONITORING_MODE)
+ {
+ struct linux_wlan_ng_prism_hdr *prism_hdr;
+
+ prism_hdr=(struct linux_wlan_ng_prism_hdr *)package;
+
+
+
+
+}
projects / my-code / hdw-sniff.git / commitdiff