const u_char *package) {
/* local variables */
+ char tmp_buf[20];
struct linux_wlan_ng_prism_hdr *prism_hdr;
struct ieee802_11_hdr *w_hdr;
struct ethhdr *e_hdr;
- struct ip *ip_hdr;
+ struct iphdr *ip_hdr;
struct info_struct *my_info_struct;
int i,p_o,w_o,e_o,i_o;
- /* cache offsets */
- p_o=sizeof(struct linux_wlan_ng_prism_hdr);
- w_o=sizeof(struct ieee802_11_hdr);
- e_o=sizeof(struct ethhdr);
- i_o=sizeof(struct ip);
-
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);
printf("\n");
printf("---> package %d ---- %s",my_info_struct->count,
printf("pcap header:\n");
printf("capture_length: %d (dec.)\t",pcap_header->caplen);
printf("length(off wire): %d (dec.)\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\n",ntohs(prism_hdr->msgcode),
- ntohs(prism_hdr->msglen));
- printf("device: %s\n",prism_hdr->devname);
- /* skip wlan_ng_prism header */
- // package=package+p_o;
-
+ printf("| message code/length: %d/%d |\t",prism_hdr->msgcode,
+ prism_hdr->msglen);
+ printf("device: %s |\n",prism_hdr->devname);
/* ieee802.11 header */
printf("ieee802.11 header: (%d bytes)\n",w_o);
w_hdr=(struct ieee802_11_hdr *)(package+p_o);
- printf("debug:\n");
- for(i=0;i<16;i++) {
- printf("%x -> ",1<<i);
- printf("%x\n",(ntohs(w_hdr->frame_ctl) & (1<<i)));
- }
- printf("frame_control: %x duration_id: %x\n",ntohs(w_hdr->frame_ctl),
- ntohs(w_hdr->duration_id));
+ 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");
+ printf("debug: %d\n",(w_hdr->frame_ctl)<<15);
+ if((w_hdr->frame_ctl & IEEE802_11_STYPE_BEACON)>0) strcpy(tmp_buf,"beacon");
+ else strcpy(tmp_buf,"unknown");
+
+ printf("=> %s\n",tmp_buf);
+
+ printf("duration/id: %x\n",w_hdr->duration_id);
printf("version check ... %s\n",
- ((ntohs(w_hdr->frame_ctl) & IEEE802_11_FCTL_VERS)==0x00)?
+ ((w_hdr->frame_ctl & IEEE802_11_FCTL_VERS)==0x00)?
"ok":"unknown");
- // printf("type:
- /* skip ieee802.11 header */
- // package=package+w_o;
}
/* ieee802.3 */
/* ethernet */
- printf("ethernet:\n");
+ if((strncmp(my_info_struct->dev,"eth",3)==0) |
+ ((w_hdr->frame_ctl & IEEE802_11_FTYPE_DATA)>0)) {
+ printf("ethernet: (%d bytes)\n",e_o);
e_hdr=(struct ethhdr *)(package+p_o+w_o);
/* what types ? */
printf("type = ");
printf(" src_addr = ");
for(i=0;i<ETH_ALEN;i++)
printf("%x%s",*(e_hdr->h_source+i),((i==ETH_ALEN-1)?"\n":":"));
+
/* IP ? */
if(ntohs(e_hdr->h_proto)==ETH_P_IP) {
- printf("ip protocol: ");
- ip_hdr=(struct ip *)(package+p_o+w_o+e_o);
- printf("version = %x ",ntohs(ip_hdr->ip_v));
- printf("header_length = %x \n",ntohs(ip_hdr->ip_hl));
- printf("service = %x ",ntohs(ip_hdr->ip_tos));
- printf("total_length(dec.) = %d \n",ntohs(ip_hdr->ip_len));
- printf("ip_addresses: source = ");
- printf("%s\tdestination = %s\n",inet_ntoa(ip_hdr->ip_src),
- inet_ntoa(ip_hdr->ip_dst));
- printf("ip_id = %x ",ntohs(ip_hdr->ip_id));
- printf("ip_offset = %x \n",ntohs(ip_hdr->ip_off));
- printf("time2live = %x ip_proto = %x\n",ntohs(ip_hdr->ip_ttl),
- ntohs(ip_hdr->ip_p));
- printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
+ printf("ip protocol: (%d bytes)\n",i_o);
+ ip_hdr=(struct iphdr *)(package+p_o+w_o+e_o);
+ printf("version = %x ",ntohs(ip_hdr->version));
+ printf("header_length = %x \n",ntohs(ip_hdr->ihl));
+ printf("service = %x ",ntohs(ip_hdr->tos));
+ printf("total_length(dec.) = %d \n",ntohs(ip_hdr->tot_len));
+ printf("source_ip: ");
+ for(i=3;i>=0;--i) {
+ printf("%d%s",
+ ip_hdr->saddr&0xff<<i,
+ (i==0?"\n":"."));
+ }
+ printf("destination_ip: ");
+ for(i=3;i>=0;--i) {
+ printf("%d%s",
+ ip_hdr->daddr&0xff<<i,
+ (i==0?"\n":"."));
+ }
+ printf("ip_id = %x ",ntohs(ip_hdr->id));
+ printf("ip_offset = %x \n",ntohs(ip_hdr->frag_off));
+ printf("time2live = %x ip_proto = %x\n",ntohs(ip_hdr->ttl),
+ ntohs(ip_hdr->protocol));
+ // printf("chksum: %x\n",ntohs(ip_hdr->ip_sum));
+ }
}
- printf("all ethernet dump:\n");
- for(i=p_o+w_o+e_o;i<pcap_header->caplen;i++)
+
+ /* check what we have ... */
+ printf("all dump: (hex)\n");
+ for(i=p_o+w_o;i<pcap_header->caplen;i++)
printf("%x ",*(package+i));
printf("\n");
+ printf("all dump: (char)\n");
+ for(i=p_o+w_o;i<pcap_header->caplen;i++)
+ printf("%c ",*(package+i));
+ printf("\n");
}
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>=14) info->channel=1;
memset(&my_iwreq,0,sizeof(my_iwreq));
strcpy(my_iwreq.ifr_name,info->dev);
- printf("debug: device = %s\n",my_iwreq.ifr_name);
- printf("debug: %d\n",foo_fd);
printf("debug: channel = %d\n",info->channel);
my_iwreq.u.freq.e=0;
my_iwreq.u.freq.m=info->channel;
perror("ioctl");
return -1;
}
- printf("debug: hopped to channel %d\n",info->channel);
++(info->channel);
+ }
return 0;
}
projects / my-code / hdw-sniff.git / blobdiff