clear cluster_master on election so that slaves will accept a new master

[l2tpns.git] / l2tpns.h

diff --git a/l2tpns.h b/l2tpns.h
index ee5fe4a..9dfd22a 100644 (file)
--- 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 1.49.2.16 2005/07/03 02:40:22 bodea Exp $
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
@@ -15,16 +15,16 @@
 #include <sys/types.h>
 #include <libcli.h>
 
-#define VERSION        "2.1.0"
+#define VERSION        "2.0.23"
 
 // 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
-#define RADIUS_MASK    ((unsigned short)(((unsigned short)~0) >> (16 - RADIUS_SHIFT)))
-#define        MAXRADIUS       ((unsigned long)(1L << RADIUS_SHIFT) * 255)
+#define RADIUS_SHIFT   6
+#define RADIUS_MASK    ((1 << RADIUS_SHIFT) - 1)
+#define MAXRADIUS      (1 << (8 + RADIUS_SHIFT))
 
 #define T_UNDEF                (0xffff)        // A tunnel ID that won't ever be used. Mark session as undefined.
 #define T_FREE         (0)             // A tunnel ID that won't ever be used. Mark session as free.
@@ -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;
@@ -448,9 +451,11 @@ typedef struct
        char            old_plugins[64][MAXPLUGINS];
 
        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             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.
@@ -472,6 +477,10 @@ typedef struct
        int             cluster_hb_timeout;             // How many missed heartbeats trigger an election.
        uint64_t        cluster_table_version;          // # state changes processed by cluster
 
+
+       int             cluster_master_min_adv;         // Master advertises routes while the number of up to date
+                                                       // slaves is less than this value.
+
 #ifdef BGP
 #define BGP_NUM_PEERS  2
        uint16_t as_number;
@@ -484,7 +493,7 @@ 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 +584,7 @@ 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 +625,7 @@ 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)
 
@@ -638,6 +648,7 @@ if (count++ < max) { \
 extern configt *config;
 extern time_t basetime;                // Time when this process started.
 extern time_t time_now;                // Seconds since EPOCH.
+extern char main_quit;
 extern uint32_t last_id;
 extern struct Tstats *_statistics;
 extern in_addr_t my_address;