return true;
}
+static bool bind_to_address(connection_t *c) {
+ int s = -1;
+
+ for(int i = 0; i < listen_sockets; i++) {
+ if(listen_socket[i].sa.sa.sa_family != c->address.sa.sa_family)
+ continue;
+ if(s >= 0)
+ return false;
+ s = i;
+ }
+
+ if(s < 0)
+ return false;
+
+ sockaddr_t sa = listen_socket[s].sa;
+ if(sa.sa.sa_family == AF_INET)
+ sa.in.sin_port = 0;
+ else if(sa.sa.sa_family == AF_INET6)
+ sa.in6.sin6_port = 0;
+
+ if(bind(c->socket, &sa.sa, SALEN(sa.sa))) {
+ logger(DEBUG_CONNECTIONS, LOG_WARNING, "Can't bind outgoing socket: %s", strerror(errno));
+ return false;
+ }
+
+ return true;
+}
+
int setup_listen_socket(const sockaddr_t *sa) {
int nfd;
char *addrstr;
#endif
bind_to_interface(c->socket);
+ bind_to_address(c);
}
/* Connect */
tarpit = -1;
}
- if(prev_time == now.tv_sec && !sockaddrcmp_noport(&sa, &prev_sa)) {
- // if so, keep the connection open but ignore it completely.
- tarpit = fd;
- return;
+ if(!sockaddrcmp_noport(&sa, &prev_sa)) {
+ static int samehost_burst;
+ static int samehost_burst_time;
+
+ if(now.tv_sec - samehost_burst_time > samehost_burst)
+ samehost_burst = 0;
+ else
+ samehost_burst -= now.tv_sec - samehost_burst_time;
+
+ samehost_burst_time = now.tv_sec;
+ samehost_burst++;
+
+ if(samehost_burst > max_connection_burst) {
+ tarpit = fd;
+ return;
+ }
}
memcpy(&prev_sa, &sa, sizeof sa);