2 * parse.c - parsing of pcap packages
4 * author: hackbard@hackdaworld.dyndns.org
11 /* all the parsing stuff will go here
13 * different protocols should get to seperated files though ...
16 int switch_active_state(char *state) {
36 void parse_package(unsigned char *ptr,const struct pcap_pkthdr *pcap_header,const unsigned char *package) {
42 //t_frame4_hdr *f4hdr;
44 //t_frame2_hdr *f2hdr;
45 //t_frame1_hdr *f1hdr;
46 t_beacon_fb *beacon_fb;
48 char string[MESSAGE_MAX];
54 memset(&new_sta,0,sizeof(t_sta));
56 if(info->dump_fd!=0) {
57 ret=write(info->dump_fd,pcap_header,sizeof(struct pcap_pkthdr));
58 if(ret!=sizeof(struct pcap_pkthdr))
59 display_console(info,"warning, pcap header write failed!");
60 ret=write(info->dump_fd,package,pcap_header->caplen);
61 if(ret!=pcap_header->caplen)
62 display_console(info,"warning, package write failed!");
65 /* maybe there is offset to the actual ieee802.11 frame,
66 for example prism header ...
67 in that case, hack the source! */
70 if(FCTL_TYPE(package[0])==FCTL_TYPE_MGMT) {
74 if(FCTL_STYPE(package[0])==FCTL_STYPE_BEACON) {
75 f3hdr=(t_frame3_hdr *)package;
76 beacon_fb=(t_beacon_fb *)(package+sizeof(t_frame3_hdr));
78 memcpy(new_sta.addr,f3hdr->addr2,ADDR_LEN);
79 ret=list_search_data(&(info->sniffed_sta),&new_sta,ADDR_LEN);
80 if((ret==L_EMPTY_LIST)|(ret==L_NO_SUCH_ELEMENT)) {
81 list_add_element(&(info->sniffed_sta),&new_sta,sizeof(t_sta));
82 sta=(t_sta *)info->sniffed_sta.current->data;
84 else sta=(t_sta *)info->sniffed_sta.current->data;
86 memcpy(sta->ssid,beacon_fb->ssid,beacon_fb->ssid_length);
87 if((CAP_INFO_ESS(beacon_fb->cap_info))&
88 (CAP_INFO_IBSS(beacon_fb->cap_info)==0)) sta->ap=AP;
89 if(CAP_INFO_PRIVACY(beacon_fb->cap_info)) sta->wep=WEP;
91 switch_active_state(&(sta->active));
92 strncpy(string,"last: beacon, source: ",MESSAGE_MAX);
93 for(i=0;i<ADDR_LEN;i++)
94 snprintf(&string[22+3*i],4,"%02x%c",sta->addr[i],
95 (i==ADDR_LEN-1)?'.':':');
96 string[22+3*ADDR_LEN+1]=0;
97 display_console(info,string);
103 else if(FCTL_TYPE(package[0])==FCTL_TYPE_CTRL) {
105 display_console(info,"last: got control frame");
109 else if(FCTL_TYPE(package[0])==FCTL_TYPE_DATA) {
111 display_console(info,"last: got data frame");