// L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.7 2004-06-23 03:52:24 fred_nerk Exp $
+// $Id: l2tpns.h,v 1.11 2004-07-08 16:54:35 bodea Exp $
#ifndef __L2TPNS_H__
#define __L2TPNS_H__
#include <arpa/inet.h>
#include <sys/types.h>
#include <libcli.h>
-#include "config.h"
-#define VERSION "2.0.0"
+#define VERSION "2.0.1"
// Limits
#define MAXTUNNEL 500 // could be up to 65535
#define T_FREE (0) // A tunnel ID that won't ever be used. Mark session as free.
#define MAXCONTROL 1000 // max length control message we ever send...
-#define MAXETHER (1500+18) // max packet we try sending to tap
+#define MAXETHER (1500+18) // max packet we try sending to tun
#define MAXTEL 96 // telephone number
#define MAXPLUGINS 20 // maximum number of plugins to load
#define MAXRADSERVER 10 // max radius servers
#define IDLE_TIMEOUT 240 // Time between last packet sent and LCP ECHO generation
// Constants
+#include "config.h"
#ifndef PLUGINDIR
#define PLUGINDIR LIBDIR // Plugins
#endif
#define FLASHDIR ETCDIR
#endif
-#define TAPDEVICE "/dev/net/tun"
-#define UDP 17
+#define TUNDEVICE "/dev/net/tun"
#define STATEFILE DATADIR "/state.dump" // State dump file
#define CONFIGFILE FLASHDIR "/startup-config" // Configuration file
#define CLIUSERS FLASHDIR "/users" // CLI Users file
typedef u32 clockt;
typedef u8 hasht[16];
+// CLI actions
+struct cli_session_actions {
+ char action;
+ ipt snoop_ip;
+ u16 snoop_port;
+ int throttle;
+};
+
+#define CLI_SESS_KILL 0x01
+#define CLI_SESS_SNOOP 0x02
+#define CLI_SESS_NOSNOOP 0x04
+#define CLI_SESS_THROTTLE 0x08
+#define CLI_SESS_NOTHROTTLE 0x10
+
+struct cli_tunnel_actions {
+ char action;
+};
+
+#define CLI_TUN_KILL 0x01
+
// dump header: update number if internal format changes
#define DUMP_MAGIC "L2TPNS#" VERSION "#"
}
controlt;
-// 336 bytes per session
typedef struct sessions
{
sessionidt next; // next session in linked list
time_t start_time;
time_t last_reset;
- unsigned long tap_rx_packets;
- unsigned long tap_tx_packets;
- unsigned long tap_rx_bytes;
- unsigned long tap_tx_bytes;
- unsigned long tap_rx_errors;
- unsigned long tap_tx_errors;
+ unsigned long tun_rx_packets;
+ unsigned long tun_tx_packets;
+ unsigned long tun_rx_bytes;
+ unsigned long tun_tx_bytes;
+ unsigned long tun_rx_errors;
+ unsigned long tun_tx_errors;
unsigned long tunnel_rx_packets;
unsigned long tunnel_tx_packets;
unsigned long tunnel_retries;
unsigned long radius_retries;
- unsigned long arp_errors;
- unsigned long arp_replies;
- unsigned long arp_discarded;
unsigned long arp_sent;
- unsigned long arp_recv;
unsigned long packets_snooped;
unsigned long c_forwarded;
unsigned long recv_forward;
-#ifdef STAT_CALLS
- unsigned long call_processtap;
- unsigned long call_processarp;
+#ifdef STATISTICS
+ unsigned long call_processtun;
unsigned long call_processipout;
unsigned long call_processudp;
unsigned long call_sessionbyip;
};
#ifdef STATISTICS
-#define STAT(x) _statistics->x++
-#define INC_STAT(x,y) _statistics->x += y
-#define GET_STAT(x) _statistics->x
-#define SET_STAT(x, y) _statistics->x = y
+
+#ifdef STAT_CALLS
+#define CSTAT(x) STAT(x)
#else
+#define CSTAT(x)
+#endif
+
+#define STAT(x) (_statistics->x++)
+#define INC_STAT(x,y) (_statistics->x += (y))
+#define GET_STAT(x) (_statistics->x)
+#define SET_STAT(x, y) (_statistics->x = (y))
+#else
+#define CSTAT(x)
#define STAT(x)
#define INC_STAT(x,y)
#define GET_STAT(x) 0
int debug; // debugging level
time_t start_time; // time when l2tpns was started
char bandwidth[256]; // current bandwidth
- clockt current_time;
+ clockt current_time; // 1/10ths of a second since the process started.
+ // means that we can only run a given process
+ // for 13 years without re-starting!
char config_file[128];
int reload_config; // flag to re-read config (set by cli)
int cleanup_interval; // interval between regular cleanups (in seconds)
int multi_read_count; // amount of packets to read per fd in processing loop
- char tapdevice[10]; // tap device name
+ char tundevice[10]; // tun device name
char log_filename[128];
char l2tpsecret[64];
// Don't use this unless you have a dual processor machine!
int icmp_rate; // Max number of ICMP unreachable per second to send
- u32 cluster_address; // Multicast address of cluster.
+ u32 cluster_address; // Multicast address of cluster.
// Send to this address to have everyone hear.
char cluster_interface[64]; // Which interface to listen for multicast on.
int cluster_iam_master; // Are we the cluster master???
int cluster_iam_uptodate; // Set if we've got a full set of state from the master.
- u32 cluster_master_address; // The network address of the cluster master.
+ u32 cluster_master_address; // The network address of the cluster master.
// Zero if i am the cluster master.
int cluster_seq_number; // Sequence number of the next heartbeat we'll send out
// (or the seq number we're next expecting if we're a slave).
clockt cluster_last_hb; // Last time we saw a heartbeat from the master.
int cluster_num_changes; // Number of changes queued.
+ int cluster_hb_interval; // How often to send a heartbeat.
+ int cluster_hb_timeout; // How many missed heartbeats trigger an election.
+
#ifdef BGP
u16 as_number;
char bgp_peer[2][64];
clockt now(void);
clockt backoff(u8 try);
void routeset(sessionidt, ipt ip, ipt mask, ipt gw, u8 add);
-void inittap(void);
+void inittun(void);
void initudp(void);
void initdata(void);
void initippool();
void processipout(u8 * buf, int len);
void processarp(u8 * buf, int len);
void processudp(u8 * buf, int len, struct sockaddr_in *addr);
-void processtap(u8 * buf, int len);
+void processtun(u8 * buf, int len);
void processcontrol(u8 * buf, int len, struct sockaddr_in *addr);
int assign_ip_address(sessionidt s);
void free_ip_address(sessionidt s);
int cluster_send_session(int s);
int cluster_send_tunnel(int t);
int cluster_send_goodbye();
-void init_cli();
+void init_cli(char *hostname);
void cli_do_file(FILE *fh);
void cli_do(int sockfd);
+int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...);
#ifdef RINGBUFFER
void ringbuffer_dump(FILE *stream);
#endif
extern struct Tstats *_statistics;
extern ipt my_address;
extern int tun_write(u8 *data, int size);
+
+
+#define TIME (config->current_time)
+
+// macros for handling help in cli commands
+#define CLI_HELP_REQUESTED (argc > 0 && argv[argc-1][strlen(argv[argc-1])-1] == '?')
+#define CLI_HELP_NO_ARGS (argc > 1 || argv[0][1]) ? CLI_OK : cli_arg_help(cli, 1, NULL)
+
+// CVS identifiers (for "show version file")
+extern char const *cvs_id_arp;
+extern char const *cvs_id_cli;
+extern char const *cvs_id_cluster;
+extern char const *cvs_id_constants;
+extern char const *cvs_id_control;
+extern char const *cvs_id_icmp;
+extern char const *cvs_id_l2tpns;
+extern char const *cvs_id_ll;
+extern char const *cvs_id_md5;
+extern char const *cvs_id_ppp;
+extern char const *cvs_id_radius;
+extern char const *cvs_id_tbf;
+extern char const *cvs_id_util;
+
#endif /* __L2TPNS_H__ */
projects / l2tpns.git / blobdiff