X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/9cb7003d3390c34d3f01bb10fe5542d433ae99de..30b64bb9f99720d8886057caeb519f2524f1b4cf:/l2tpns.h?ds=sidebyside

diff --git a/l2tpns.h b/l2tpns.h
index ee5fe4a..f9dfd32 100644
--- a/l2tpns.h
+++ b/l2tpns.h
@@ -1,5 +1,5 @@
 // L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.50 2004/12/18 01:20:05 bodea Exp $
+// $Id: l2tpns.h,v 1.49.2.6 2005/05/03 05:10:52 bodea Exp $
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
@@ -15,11 +15,11 @@
 #include <sys/types.h>
 #include <libcli.h>
 
-#define VERSION	"2.1.0"
+#define VERSION	"2.0.18"
 
 // Limits
 #define MAXTUNNEL	500		// could be up to 65535
-#define MAXSESSION	50000		// could be up to 65535
+#define MAXSESSION	60000		// could be up to 65535
 #define MAXTBFS		6000		// Maximum token bucket filters. Might need up to 2 * session.
 
 #define RADIUS_SHIFT	5
@@ -81,16 +81,14 @@
 #define	L2TPPORT	1701		// L2TP port
 #define RADPORT		1645		// old radius port...
 #define	PKTARP		0x0806		// ARP packet type
-#define	PKTIP		0x0800		// IPv4 packet type
-#define	PKTIPV6		0x86DD		// IPv6 packet type
+#define	PKTIP		0x0800		// IP packet type
+#define PSEUDOMAC	0x0200		// pseudo MAC prefix (local significant MAC)
 #define	PPPPAP		0xC023
 #define	PPPCHAP		0xC223
 #define	PPPLCP		0xC021
 #define	PPPIPCP		0x8021
-#define	PPPIPV6CP	0x8057
 #define	PPPCCP		0x80FD
 #define PPPIP		0x0021
-#define PPPIPV6		0x0057
 #define PPPMP		0x003D
 #define MIN_IP_SIZE	0x19
 enum
@@ -210,14 +208,18 @@ sessiont;
 #define SF_IPCP_ACKED	1	// Has this session seen an IPCP Ack?
 #define SF_LCP_ACKED	2	// LCP negotiated
 #define SF_CCP_ACKED	4	// CCP negotiated
-#define SF_IPV6CP_ACKED	8	// IPv6 negotiated
-#define SF_IPV6_NACKED	16	// IPv6 rejected
 
 typedef struct
 {
+	// byte counters
 	uint32_t cin;
 	uint32_t cout;
-} sessioncountt;
+
+	// DoS prevention
+	clockt last_packet_out;
+	uint32_t packets_out;
+	uint32_t packets_dropped;
+} sessionlocalt;
 
 #define	SESSIONPFC	1	// PFC negotiated flags
 #define	SESSIONACFC	2	// ACFC negotiated flags
@@ -320,6 +322,7 @@ struct Tstats
     uint32_t	tun_tx_bytes;
     uint32_t	tun_rx_errors;
     uint32_t	tun_tx_errors;
+    uint32_t	tun_rx_dropped;
 
     uint32_t	tunnel_rx_packets;
     uint32_t	tunnel_tx_packets;
@@ -450,7 +453,8 @@ typedef struct
 	int		next_tbf;			// Next HTB id available to use
 	int		scheduler_fifo;			// If the system has multiple CPUs, use FIFO scheduling policy for this process.
 	int		lock_pages;			// Lock pages into memory.
-	int		icmp_rate;			// Max number of ICMP unreachable per second to send>
+	int		icmp_rate;			// Max number of ICMP unreachable per second to send
+	int		max_packets;			// DoS prevention: per session limit of packets/0.1s
 
 	in_addr_t	cluster_address;		// Multicast address of cluster.
 							// Send to this address to have everyone hear.
@@ -484,7 +488,7 @@ typedef struct
 #endif
 } configt;
 
-enum config_typet { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IPv4, IPv6, MAC };
+enum config_typet { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IP, MAC };
 typedef struct
 {
 	char *key;
@@ -575,6 +579,7 @@ void radiusclear(uint16_t r, sessionidt s);
 clockt backoff(uint8_t try);
 sessionidt sessionbyip(in_addr_t ip);
 sessionidt sessionbyuser(char *username);
+void sessionkill(sessionidt s, char *reason);
 void sessionshutdown(sessionidt s, char *reason);
 void send_garp(in_addr_t ip);
 void tunnelsend(uint8_t *buf, uint16_t l, tunnelidt t);
@@ -615,7 +620,7 @@ void host_unreachable(in_addr_t destination, uint16_t id, in_addr_t source, char
 
 extern tunnelt *tunnel;
 extern sessiont *session;
-extern sessioncountt *sess_count;
+extern sessionlocalt *sess_local;
 extern ippoolt *ip_address_pool;
 #define sessionfree (session[0].next)