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- fix leak in session freelist when initial RADIUS session allocation fails
[l2tpns.git] / l2tpns.h
diff --git a/l2tpns.h b/l2tpns.h
index db96836..3c389d2 100644 (file)
--- a/l2tpns.h
+++ b/l2tpns.h
@@ -1,5 +1,5 @@
 // L2TPNS Global Stuff
 // L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.47 2004/12/16 08:49:53 bodea Exp $
+// $Id: l2tpns.h,v 1.49.2.7 2005/05/07 03:51:24 bodea Exp $
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
@@ -15,11 +15,11 @@
 #include <sys/types.h>
 #include <libcli.h>
 
 #include <sys/types.h>
 #include <libcli.h>
 
-#define VERSION        "2.0.13"
+#define VERSION        "2.0.19"
 
 // Limits
 #define MAXTUNNEL      500             // could be up to 65535
 
 // 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 MAXTBFS                6000            // Maximum token bucket filters. Might need up to 2 * session.
 
 #define RADIUS_SHIFT   5
@@ -211,9 +211,15 @@ sessiont;
 
 typedef struct
 {
 
 typedef struct
 {
+       // byte counters
        uint32_t cin;
        uint32_t cout;
        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
 
 #define        SESSIONPFC      1       // PFC negotiated flags
 #define        SESSIONACFC     2       // ACFC negotiated flags
@@ -307,71 +313,77 @@ enum
 
 struct Tstats
 {
 
 struct Tstats
 {
-    time_t             start_time;
-    time_t             last_reset;
-
-    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_rx_bytes;
-    unsigned long      tunnel_tx_bytes;
-    unsigned long      tunnel_rx_errors;
-    unsigned long      tunnel_tx_errors;
-
-    unsigned long      tunnel_retries;
-    unsigned long      radius_retries;
-
-    unsigned long      arp_sent;
-
-    unsigned long      packets_snooped;
-
-    unsigned long      tunnel_created;
-    unsigned long      session_created;
-    unsigned long      tunnel_timeout;
-    unsigned long      session_timeout;
-    unsigned long      radius_timeout;
-    unsigned long      radius_overflow;
-    unsigned long      tunnel_overflow;
-    unsigned long      session_overflow;
-
-    unsigned long      ip_allocated;
-    unsigned long      ip_freed;
-
-    unsigned long      c_forwarded;
-    unsigned long      recv_forward;
+    time_t     start_time;
+    time_t     last_reset;
+
+    uint32_t   tun_rx_packets;
+    uint32_t   tun_tx_packets;
+    uint32_t   tun_rx_bytes;
+    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;
+    uint32_t   tunnel_rx_bytes;
+    uint32_t   tunnel_tx_bytes;
+    uint32_t   tunnel_rx_errors;
+    uint32_t   tunnel_tx_errors;
+
+    uint32_t   tunnel_retries;
+    uint32_t   radius_retries;
+
+    uint32_t   arp_sent;
+
+    uint32_t   packets_snooped;
+
+    uint32_t   tunnel_created;
+    uint32_t   session_created;
+    uint32_t   tunnel_timeout;
+    uint32_t   session_timeout;
+    uint32_t   radius_timeout;
+    uint32_t   radius_overflow;
+    uint32_t   tunnel_overflow;
+    uint32_t   session_overflow;
+
+    uint32_t   ip_allocated;
+    uint32_t   ip_freed;
+
+    uint32_t   c_forwarded;
+    uint32_t   recv_forward;
+
+    uint32_t   select_called;
+    uint32_t   multi_read_used;
+    uint32_t   multi_read_exceeded;
+
 #ifdef STATISTICS
 #ifdef STATISTICS
-    unsigned long      call_processtun;
-    unsigned long      call_processipout;
-    unsigned long      call_processudp;
-    unsigned long      call_sessionbyip;
-    unsigned long      call_sessionbyuser;
-    unsigned long      call_sendarp;
-    unsigned long      call_sendipcp;
-    unsigned long      call_tunnelsend;
-    unsigned long      call_sessionkill;
-    unsigned long      call_sessionshutdown;
-    unsigned long      call_tunnelkill;
-    unsigned long      call_tunnelshutdown;
-    unsigned long      call_assign_ip_address;
-    unsigned long      call_free_ip_address;
-    unsigned long      call_dump_acct_info;
-    unsigned long      call_sessionsetup;
-    unsigned long      call_processpap;
-    unsigned long      call_processchap;
-    unsigned long      call_processlcp;
-    unsigned long      call_processipcp;
-    unsigned long      call_processipin;
-    unsigned long      call_processccp;
-    unsigned long      call_sendchap;
-    unsigned long      call_processrad;
-    unsigned long      call_radiussend;
-    unsigned long      call_radiusretry;
+    uint32_t   call_processtun;
+    uint32_t   call_processipout;
+    uint32_t   call_processudp;
+    uint32_t   call_sessionbyip;
+    uint32_t   call_sessionbyuser;
+    uint32_t   call_sendarp;
+    uint32_t   call_sendipcp;
+    uint32_t   call_tunnelsend;
+    uint32_t   call_sessionkill;
+    uint32_t   call_sessionshutdown;
+    uint32_t   call_tunnelkill;
+    uint32_t   call_tunnelshutdown;
+    uint32_t   call_assign_ip_address;
+    uint32_t   call_free_ip_address;
+    uint32_t   call_dump_acct_info;
+    uint32_t   call_sessionsetup;
+    uint32_t   call_processpap;
+    uint32_t   call_processchap;
+    uint32_t   call_processlcp;
+    uint32_t   call_processipcp;
+    uint32_t   call_processipin;
+    uint32_t   call_processccp;
+    uint32_t   call_sendchap;
+    uint32_t   call_processrad;
+    uint32_t   call_radiussend;
+    uint32_t   call_radiusretry;
 #endif
 };
 
 #endif
 };
 
@@ -441,7 +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             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.
 
        in_addr_t       cluster_address;                // Multicast address of cluster.
                                                        // Send to this address to have everyone hear.
@@ -566,6 +579,7 @@ void radiusclear(uint16_t r, sessionidt s);
 clockt backoff(uint8_t try);
 sessionidt sessionbyip(in_addr_t ip);
 sessionidt sessionbyuser(char *username);
 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);
 void sessionshutdown(sessionidt s, char *reason);
 void send_garp(in_addr_t ip);
 void tunnelsend(uint8_t *buf, uint16_t l, tunnelidt t);
@@ -606,7 +620,7 @@ void host_unreachable(in_addr_t destination, uint16_t id, in_addr_t source, char
 
 extern tunnelt *tunnel;
 extern sessiont *session;
 
 extern tunnelt *tunnel;
 extern sessiont *session;
-extern sessioncountt *sess_count;
+extern sessionlocalt *sess_local;
 extern ippoolt *ip_address_pool;
 #define sessionfree (session[0].next)
 
 extern ippoolt *ip_address_pool;
 #define sessionfree (session[0].next)
 
for cloning use: "git clone git://git.sameswireless.fr/l2tpns.git" ; For add to your sources.list: "deb http://package.sameswifi.fr/ jessie main"