- printf("ethernet: (%d bytes)\n",e_o);
- e_hdr=(struct ethhdr *)(package+p_o+w_o);
- /* 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(!(w_hdr->frame_ctl & IEEE802_11_FTYPE_DATA)) {
+ printf("ethernet: (%d bytes)\n",e_o);
+ e_hdr=(struct ethhdr *)(package+p_o+w_o);
+ /* 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":":"));
+ }
+ 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)) {
+ /* we want ip header to get parsed */
+ e_hdr->h_proto=htons(ETH_P_IP);
+ e_o=sizeof(struct snaphdr);
+ }
+ }
+ else {
+ printf("- crypted packet!\n");
+ /* print crypted snap - write into file */
+ printf("snap: (aa aa 03 00 00 00) ");
+ for(i=0;i<6;i++) {
+ printf("%x ",snap_hdr->snap[i]);
+ if(file_fd>0) write(file_fd,snap_hdr->snap+i,1);
+ }
+ printf("\n");
+ // write(file_fd,'\n',1);
+ /* dont look at ipheader */
+ e_hdr->h_proto=htons(0);
+ }
+ }