-void sessionshutdown(sessionidt s, char *reason);
-void send_garp(ipt ip);
-void tunnelsend(u8 * buf, u16 l, tunnelidt t);
-void sendipcp(tunnelidt t, sessionidt s);
-void processudp(u8 * buf, int len, struct sockaddr_in *addr);
-void snoop_send_packet(char *packet, u16 size, ipt destination, u16 port);
-int cmd_show_ipcache(struct cli_def *cli, char *command, char **argv, int argc);
-int cmd_show_hist_idle(struct cli_def *cli, char *command, char **argv, int argc);
-int cmd_show_hist_open(struct cli_def *cli, char *command, char **argv, int argc);
+void increment_counter(uint32_t *counter, uint32_t *wrap, uint32_t delta);
+void random_data(uint8_t *buf, int len);
+void sessionkill(sessionidt s, char *reason);
+void sessionshutdown(sessionidt s, char const *reason, int cdn_result, int cdn_error, int term_cause);
+void filter_session(sessionidt s, int filter_in, int filter_out);
+void send_garp(in_addr_t ip);
+void tunnelsend(uint8_t *buf, uint16_t l, tunnelidt t);
+int tun_write(uint8_t *data, int size);
+void adjust_tcp_mss(sessionidt s, tunnelidt t, uint8_t *buf, int len, uint8_t *tcp);
+void sendipcp(sessionidt s, tunnelidt t);
+void sendipv6cp(sessionidt s, tunnelidt t);
+void processudp(uint8_t *buf, int len, struct sockaddr_in *addr, uint16_t indexudpfd);
+void processipout(uint8_t *buf, int len);
+void snoop_send_packet(uint8_t *packet, uint16_t size, in_addr_t destination, uint16_t port);
+int find_filter(char const *name, size_t len);
+int ip_filter(uint8_t *buf, int len, uint8_t filter);
+int cmd_show_ipcache(struct cli_def *cli, const char *command, char **argv, int argc);
+int cmd_show_hist_idle(struct cli_def *cli, const char *command, char **argv, int argc);
+int cmd_show_hist_open(struct cli_def *cli, const char *command, char **argv, int argc);
+void netlink_addattr(struct nlmsghdr *nh, int type, const void *data, int alen);
+ssize_t netlink_send(struct nlmsghdr *nh);
+void cache_ipmap(in_addr_t ip, sessionidt s);
+tunnelidt lac_new_tunnel();
+void lac_tunnelclear(tunnelidt t);
+void lac_send_SCCRQ(tunnelidt t, uint8_t * auth, unsigned int auth_len);
+void lac_send_ICRQ(tunnelidt t, sessionidt s);
+void lac_tunnelshutdown(tunnelidt t, char *reason, int result, int error, char *msg);
+
+// grpsess.c
+sessionidt grp_getnextsession(groupidt g, in_addr_t ip, in_addr_t ip_src);
+void grp_initdata(void);
+void grp_processvendorspecific(sessionidt s, uint8_t *pvs);
+groupidt grp_groupbysession(sessionidt s);
+groupidt grp_groupbyip(in_addr_t ip);
+void grp_setgrouproute(groupidt g, int add);
+void grp_time_changed(void);
+void grp_removesession(groupidt g, sessionidt s);
+int grp_cluster_load_groupe(groupidt g, groupsesst *new);