int is_localhost(char *address)
{
unsigned int i_user = ip_to_int(address);
unsigned int i_127 = ip_to_int("127.0.0.1");
if (i_user == i_127)
{
return 0;
}
return -1;
}
int is_our_country(char *address, request_rec *r)
{
int x;
char * read, * temp, * c_low, * c_high, *state;
unsigned int i_user,i_low,i_high;
i_user = ip_to_int(address);
for(x = 0; x < num_lines; x++)
{
read = apr_pstrdup(r->pool,lines[x]);
temp = apr_strtok(read,",",&state);
c_low = apr_pstrdup(r->pool,temp);
temp = apr_strtok(NULL,",",&state);
c_high = apr_pstrdup(r->pool,temp);
i_low = ip_to_int(c_low);
i_high = ip_to_int(c_high);
if (i_user >= i_low && i_user <= i_high)
{
return 0;
}
}
return -1;
}
int is_rfc_1918(char *address)
{
unsigned int i_user = ip_to_int(address);
unsigned int i_10_l = ip_to_int("10.0.0.0");
unsigned int i_10_h = ip_to_int("10.255.255.255");
unsigned int i_172_l = ip_to_int("172.16.0.0");
unsigned int i_172_h = ip_to_int("172.31.255.255");
unsigned int i_192_l = ip_to_int("192.168.0.0");
unsigned int i_192_h = ip_to_int("192.168.255.255");
if ((i_user >= i_10_l && i_user <= i_10_h) ||
(i_user >= i_172_l && i_user <= i_172_h) ||
(i_user >= i_192_l && i_user <= i_192_h))
{
return 0;
}
return -1;
}
IpRange* find_range_for_ip(IPDB *db, char *ip) {
IpRange* search;
IpRange* result;
search = (IpRange *)malloc(sizeof(IpRange));
if(db == NULL)
{
printf("ERROR: DB ist NULL! ");
return NULL;
}
if(db->ranges_count == 0)
{
printf("ERROR: DB has no Ranges Data. Can not search!\n");
return NULL;
}
search->from = ip_to_int(ip);
search->to=0;
search->city_index = 0;
if(DEBUG)
printf("Searching for: ip=%s, ipnum=%lu \n", ip, search->from);
result = (IpRange*)bsearch(search, db->ranges, db->ranges_count, sizeof(IpRange), compare_ranges);
if(search != NULL)
free(search);
if(result == NULL)
{
if(DEBUG)
printf("ERROR: Could not find the IP: %s! THIS SHOULD NOT HAPPEN!\n", ip);
return NULL;
} else {
if(DEBUG) {
printf("Found Range: \t");
print_range(result);
}
return (IpRange*)result;
}
}
MD read_pcap(std::string inFile,std::string target_ip,int quit_early, short exture_version){
unsigned target = ip_to_int(target_ip.c_str());
unsigned their_ip;
long raw_time;
long n = 20000000;
//struct top2 *bbos = (struct top2 *)malloc(n*sizeof(struct top2));
printf("Parsing pcap file %s ... with target:: %u", inFile.c_str(),target);
pcap_t *handle;
char errbuf[PCAP_ERRBUF_SIZE]; //not sure what to do with this, oh well
handle = pcap_open_offline(inFile.c_str(), errbuf); //call pcap library function
MD md;
if (handle == NULL) {
fprintf(stderr,"Couldn't open pcap file %s: %s\n", inFile.c_str(), errbuf);
return(md);
}
md.tick_data.reserve(20000000);
const u_char *packet;
struct pcap_pkthdr header;
unsigned int pktNum(0);
while (packet = pcap_next(handle, &header)) {
u_char *pktPtr = (u_char *)packet;
// Parse the header, grabbing the type field.
int ether_type = ((int)(pktPtr[12]) << 8) | (int)pktPtr[13];
int ether_offset = 0;
if (ether_type == ETHER_TYPE_IP) { //most common
ether_offset = 14;
} else {
continue;
}
raw_time = header.ts.tv_sec * 1000000000 +header.ts.tv_usec*1000;
//parse the IP header
pktPtr += ether_offset; //skip past the Ethernet II header
struct ip *ipHdr = (struct ip *)pktPtr; //point to an IP header structure
int pktLen = ntohs(ipHdr->ip_len);
int msg_type; //used to branch a0/a1/normal md accordingly
tick bbo;
if (ipHdr->ip_p == 17) { //UDP BRO
//TCP MESSAGE EITHER TO OR FROM OUR TARGET IP
msg_type = processUDP(pktNum,raw_time,ipHdr,pktLen,bbo,exture_version);
if ( msg_type >= 1){
//bbos[pktNum] = bbo;
md.tick_data.push_back(bbo);
}
}
pktNum++; //increment number of packets seen
if (unlikely(quit_early>0)&&(unlikely(pktNum>quit_early) || unlikely(pktNum>n)))
break;
}
printf("\nParsed %u packets\n",pktNum);
return md;
pcap_close(handle);
}
int main()
{
struct ip_addr ipaddr, netmask, gw;
unsigned FPGA_port_number;
char *FPGA_ip_address;
char *FPGA_netmask;
char *FPGA_gateway;
unsigned integer_ip;
unsigned int FPGA_ip_address_a1,FPGA_ip_address_a2,FPGA_ip_address_a3,FPGA_ip_address_a4;
unsigned int FPGA_netmask_a1,FPGA_netmask_a2,FPGA_netmask_a3,FPGA_netmask_a4;
unsigned int FPGA_gateway_a1,FPGA_gateway_a2,FPGA_gateway_a3,FPGA_gateway_a4;
//EXAMPLE: set FPGA IP and port number
FPGA_ip_address=FPGA_IP;
FPGA_netmask=FPGA_NM;
FPGA_gateway=FPGA_GW;
FPGA_port_number=FPGA_PORT;
//extract FPGA IP address from string
if (ip_to_int (FPGA_ip_address,&FPGA_ip_address_a1,&FPGA_ip_address_a2,&FPGA_ip_address_a3,&FPGA_ip_address_a4) == INVALID) {
printf ("'%s' is not a valid IP address for FPGA server.\n", FPGA_ip_address);
return 1;
}
//extract FPGA netmask address from string
if (ip_to_int (FPGA_netmask,&FPGA_netmask_a1,&FPGA_netmask_a2,&FPGA_netmask_a3,&FPGA_netmask_a4) == INVALID) {
printf ("'%s' is not a valid netmask address for FPGA server.\n", FPGA_netmask);
return 1;
}
//extract FPGA gateway address from string
if (ip_to_int (FPGA_gateway,&FPGA_gateway_a1,&FPGA_gateway_a2,&FPGA_gateway_a3,&FPGA_gateway_a4) == INVALID) {
printf ("'%s' is not a valid gateway address for FPGA server.\n", FPGA_gateway);
return 1;
}
/* the mac address of the board. this should be unique per board */
unsigned char mac_ethernet_address[] =
{ 0x00, 0x0a, 0x35, 0x00, 0x01, 0x02 };
echo_netif = &server_netif;
init_platform();
Xil_DCacheDisable();
/* initliaze IP addresses to be used */
IP4_ADDR(&ipaddr, FPGA_ip_address_a4, FPGA_ip_address_a3, FPGA_ip_address_a2, FPGA_ip_address_a1);
IP4_ADDR(&netmask, FPGA_netmask_a4, FPGA_netmask_a3, FPGA_netmask_a2, FPGA_netmask_a1);
IP4_ADDR(&gw, FPGA_gateway_a4, FPGA_gateway_a3, FPGA_gateway_a2, FPGA_gateway_a1);
print_app_header();
print_ip_settings(&ipaddr, &netmask, &gw);
lwip_init();
/* Add network interface to the netif_list, and set it as default */
if (!xemac_add(echo_netif, &ipaddr, &netmask,&gw, mac_ethernet_address,PLATFORM_EMAC_BASEADDR)) {
xil_printf("Error adding N/W interface\n\r");
return -1;
}
netif_set_default(echo_netif);
/* specify that the network if is up */
netif_set_up(echo_netif);
/* now enable interrupts */
platform_enable_interrupts();
/* start the application (web server, rxtest, txtest, etc..) */
start_application();
/* receive and process packets */
while (1) {
xemacif_input(echo_netif);
transfer_data();
}
/* never reached */
cleanup_platform();
return 0;
}
// read ip-ranges from csv file, of format:
// from_ip|to_ip|contype|city_code
void
read_ranges_csv(IPDB * db){
struct timeval tim;
double t1 = get_time(&tim);
db->ranges = malloc(sizeof(IpRange) * db->max_ranges_count);
if(DEBUG)
printf("Parsing RANGES-CSV-file: %s\n", db->ranges_csv_file);
FILE * f = fopen(db->ranges_csv_file, "rt");
if(f == NULL)
{
if(DEBUG)
printf("Could not open the CSV-file: %s", db->ranges_csv_file);
return;
}
char line[256];
char* from;
char* to;
char* city_code;
int city_index;
char* con_type;
char* isp_name;
uint16 isp_index;
int invalid_cities_count = 0;
IpRange* entry;
db->ranges_count = 0;
while (fgets(line, sizeof(line) ,f) && db->ranges_count < db->max_ranges_count){
from = NULL;
to = NULL;
city_code = NULL;
city_index = 0;
con_type = NULL;
isp_name = NULL;
int16 isp_index = -1;
if(DEBUG && db->ranges_count % 1000000 == 0)
printf("Worked lines: %i\n", db->ranges_count);
from = strtok(line, RANGES_DELIM);
to = strtok(NULL, RANGES_DELIM);
con_type = strtok(NULL, RANGES_DELIM);
city_code = strtok(NULL, RANGES_DELIM);
isp_name = strtok(NULL, RANGES_DELIM);
city_index = city_index_by_code(db, atoi(city_code));
isp_index = isp_index_by_name(db, isp_name);
if(city_index < 0)
{
if(DEBUG)
printf("Could not find city for code: %i", atoi(city_code));
invalid_cities_count ++;
continue;
}else{
entry = &(db->ranges[db->ranges_count]);
entry->from = ip_to_int(from);
entry->to = ip_to_int(to);
entry->is_mobile = con_type_to_int(con_type);
entry->city_index = city_index;
entry->isp_index = isp_index;
db->ranges_count++;
}
}
if(invalid_cities_count)
{
printf("Found invalid cities: %i", invalid_cities_count);
}
printf("\n Parsing of %i records needed %.6lf seconds\n", db->ranges_count, get_time(&tim)-t1);
}