missed length

[l2tpns.git] / l2tpns.h

diff --git a/l2tpns.h b/l2tpns.h
index 684df59..77936b3 100644 (file)
--- a/l2tpns.h
+++ b/l2tpns.h
@@ -1,5 +1,5 @@
 // L2TPNS Global Stuff
 // L2TPNS Global Stuff

-// $Id: l2tpns.h,v 1.54 2005/01/25 04:19:05 bodea Exp $
+// $Id: l2tpns.h,v 1.68 2005/05/08 07:13:56 bodea Exp $

 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__


@@ -19,7 +19,7 @@
 
 // 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


@@ -32,6 +32,8 @@
 #define        MAXCONTROL      1000            // max length control message we ever send...
 #define        MAXETHER        (1500+18)       // max packet we try sending to tun
 #define        MAXTEL          96              // telephone number
 #define        MAXCONTROL      1000            // max length control message we ever send...
 #define        MAXETHER        (1500+18)       // max packet we try sending to tun
 #define        MAXTEL          96              // telephone number

+#define MAXUSER                128             // username
+#define MAXPASS                128             // password

 #define MAXPLUGINS     20              // maximum number of plugins to load
 #define MAXRADSERVER   10              // max radius servers
 #define        MAXROUTE        10              // max static routes per session
 #define MAXPLUGINS     20              // maximum number of plugins to load
 #define MAXRADSERVER   10              // max radius servers
 #define        MAXROUTE        10              // max static routes per session


@@ -41,6 +43,7 @@
 #define ECHO_TIMEOUT   60              // Time between last packet sent and LCP ECHO generation
 #define IDLE_TIMEOUT   240             // Time between last packet sent and LCP ECHO generation
 #define BUSY_WAIT_TIME 3000            // 5 minutes in 1/10th seconds to wait for radius to cleanup on shutdown
 #define ECHO_TIMEOUT   60              // Time between last packet sent and LCP ECHO generation
 #define IDLE_TIMEOUT   240             // Time between last packet sent and LCP ECHO generation
 #define BUSY_WAIT_TIME 3000            // 5 minutes in 1/10th seconds to wait for radius to cleanup on shutdown

+#define DEFAULT_MRU    1458            // maximum packet size to avoid fragmentation when LNS ethernet MTU is 1500

 
 // Constants
 #ifndef ETCDIR
 
 // Constants
 #ifndef ETCDIR


@@ -51,10 +54,6 @@
 #define LIBDIR         "/usr/lib/l2tpns"
 #endif
 
 #define LIBDIR         "/usr/lib/l2tpns"
 #endif
 

-#ifndef STATEDIR
-#define STATEDIR       "/var/lib/l2tpns"
-#endif
-

 #ifndef PLUGINDIR
 #define PLUGINDIR      LIBDIR          // Plugins
 #endif
 #ifndef PLUGINDIR
 #define PLUGINDIR      LIBDIR          // Plugins
 #endif


@@ -67,13 +66,8 @@
 #define FLASHDIR       ETCDIR
 #endif
 
 #define FLASHDIR       ETCDIR
 #endif
 

-#ifndef DATADIR
-#define DATADIR                STATEDIR
-#endif
-

 #define TUNDEVICE      "/dev/net/tun"
 #define RANDOMDEVICE   "/dev/urandom"                  // default, not as secure as /dev/random but non-blocking
 #define TUNDEVICE      "/dev/net/tun"
 #define RANDOMDEVICE   "/dev/urandom"                  // default, not as secure as /dev/random but non-blocking

-#define STATEFILE      DATADIR "/state.dump"           // State dump file

 #define CONFIGFILE     FLASHDIR "/startup-config"      // Configuration file
 #define CLIUSERS       FLASHDIR "/users"               // CLI Users file
 #define IPPOOLFILE     FLASHDIR "/ip_pool"             // Address pool configuration
 #define CONFIGFILE     FLASHDIR "/startup-config"      // Configuration file
 #define CLIUSERS       FLASHDIR "/users"               // CLI Users file
 #define IPPOOLFILE     FLASHDIR "/ip_pool"             // Address pool configuration


@@ -150,9 +144,6 @@ struct cli_tunnel_actions {
 
 #define CLI_TUN_KILL           0x01
 
 
 #define CLI_TUN_KILL           0x01
 

-// dump header: update number if internal format changes
-#define DUMP_MAGIC "L2TPNS#" VERSION "#"
-

 // structures
 typedef struct                 // route
 {
 // structures
 typedef struct                 // route
 {


@@ -174,9 +165,11 @@ typedef struct
        sessionidt next;                // next session in linked list
        sessionidt far;                 // far end session ID
        tunnelidt tunnel;               // near end tunnel ID
        sessionidt next;                // next session in linked list
        sessionidt far;                 // far end session ID
        tunnelidt tunnel;               // near end tunnel ID

+       uint8_t l2tp_flags;             // various bit flags from the ICCN on the l2tp tunnel.
+       uint8_t flags;                  // Various session flags.

        in_addr_t ip;                   // IP of session set by RADIUS response (host byte order).
        int ip_pool_index;              // index to IP pool
        in_addr_t ip;                   // IP of session set by RADIUS response (host byte order).
        int ip_pool_index;              // index to IP pool

-       unsigned long unique_id;        // unique session id
+       uint32_t unique_id;             // unique session id

        uint16_t nr;                    // next receive
        uint16_t ns;                    // next send
        uint32_t magic;                 // ppp magic number
        uint16_t nr;                    // next receive
        uint16_t ns;                    // next send
        uint32_t magic;                 // ppp magic number


@@ -184,38 +177,31 @@ typedef struct
        uint32_t pin, pout;             // packet counts
        uint32_t total_cin;             // This counter is never reset while a session is open
        uint32_t total_cout;            // This counter is never reset while a session is open
        uint32_t pin, pout;             // packet counts
        uint32_t total_cin;             // This counter is never reset while a session is open
        uint32_t total_cout;            // This counter is never reset while a session is open

-       uint32_t id;                    // session id

        uint16_t throttle_in;           // upstream throttle rate (kbps)
        uint16_t throttle_out;          // downstream throttle rate
        uint16_t throttle_in;           // upstream throttle rate (kbps)
        uint16_t throttle_out;          // downstream throttle rate

+       uint8_t filter_in;              // input filter index (to ip_filters[N-1]; 0 if none)
+       uint8_t filter_out;             // output filter index
+       uint16_t mru;                   // maximum receive unit

        clockt opened;                  // when started
        clockt die;                     // being closed, when to finally free
        time_t last_packet;             // Last packet from the user (used for idle timeouts)
        in_addr_t dns1, dns2;           // DNS servers
        routet route[MAXROUTE];         // static routes
        clockt opened;                  // when started
        clockt die;                     // being closed, when to finally free
        time_t last_packet;             // Last packet from the user (used for idle timeouts)
        in_addr_t dns1, dns2;           // DNS servers
        routet route[MAXROUTE];         // static routes

-       uint16_t radius;                // which radius session is being used (0 for not waiting on authentication)
-       uint16_t mru;                   // maximum receive unit

        uint16_t tbf_in;                // filter bucket for throttling in from the user.
        uint16_t tbf_out;               // filter bucket for throttling out to the user.
        uint16_t tbf_in;                // filter bucket for throttling in from the user.
        uint16_t tbf_out;               // filter bucket for throttling out to the user.

-       uint8_t l2tp_flags;             // various bit flags from the ICCN on the l2tp tunnel.
-       uint8_t reserved_old_snoop;     // No longer used - remove at some time
-       uint8_t walled_garden;          // is this session gardened?
-       uint8_t flags1;                 // additional flags (currently unused);
-       char random_vector[MAXTEL];

        int random_vector_length;
        int random_vector_length;

-       char user[129];                 // user (needed in seesion for radius stop messages) (can we reduce this? --mo)
+       char random_vector[MAXTEL];
+       char user[MAXUSER];             // user (needed in seesion for radius stop messages)

        char called[MAXTEL];            // called number
        char calling[MAXTEL];           // calling number
        uint32_t tx_connect_speed;
        uint32_t rx_connect_speed;
        char called[MAXTEL];            // called number
        char calling[MAXTEL];           // calling number
        uint32_t tx_connect_speed;
        uint32_t rx_connect_speed;

-       uint32_t flags;                 // Various session flags.

        in_addr_t snoop_ip;             // Interception destination IP
        uint16_t snoop_port;            // Interception destination port
        in_addr_t snoop_ip;             // Interception destination IP
        uint16_t snoop_port;            // Interception destination port

-       uint16_t sid;                   // near end session id.
-       uint8_t filter_in;              // input filter index (to ip_filters[N-1]; 0 if none)
-       uint8_t filter_out;             // output filter index
-       struct in6_addr ipv6route;      // Static IPv6 route
+       uint8_t walled_garden;          // is this session gardened?

        uint8_t ipv6prefixlen;          // IPv6 route prefix length
        uint8_t ipv6prefixlen;          // IPv6 route prefix length

-       char reserved[1];               // Space to expand structure without changing HB_VERSION
+       struct in6_addr ipv6route;      // Static IPv6 route
+       char reserved[24];              // Space to expand structure without changing HB_VERSION

 }
 sessiont;
 
 }
 sessiont;
 


@@ -239,6 +225,12 @@ typedef struct
        clockt last_packet_out;
        uint32_t packets_out;
        uint32_t packets_dropped;
        clockt last_packet_out;
        uint32_t packets_out;
        uint32_t packets_dropped;

+
+       // RADIUS session in use
+       uint16_t radius;
+
+       // interim RADIUS
+       time_t last_interim;

 } sessionlocalt;
 
 #define        SESSIONPFC      1       // PFC negotiated flags
 } sessionlocalt;
 
 #define        SESSIONPFC      1       // PFC negotiated flags


@@ -327,8 +319,8 @@ enum
        RADIUSIPCP,             // sending IPCP to end user
        RADIUSSTART,            // sending start accounting to RADIUS server
        RADIUSSTOP,             // sending stop accounting to RADIUS server
        RADIUSIPCP,             // sending IPCP to end user
        RADIUSSTART,            // sending start accounting to RADIUS server
        RADIUSSTOP,             // sending stop accounting to RADIUS server

+       RADIUSINTERIM,          // sending interim accounting to RADIUS server

        RADIUSWAIT,             // waiting timeout before available, in case delayed replies
        RADIUSWAIT,             // waiting timeout before available, in case delayed replies

-       RADIUSDEAD,             // errored while talking to radius server.

 };
 
 struct Tstats
 };
 
 struct Tstats


@@ -456,6 +448,7 @@ typedef struct
 
        char            radiussecret[64];
        int             radius_accounting;
 
        char            radiussecret[64];
        int             radius_accounting;

+       int             radius_interim;

        in_addr_t       radiusserver[MAXRADSERVER];     // radius servers
        uint16_t        radiusport[MAXRADSERVER];       // radius base ports
        uint8_t         numradiusservers;               // radius server count
        in_addr_t       radiusserver[MAXRADSERVER];     // radius servers
        uint16_t        radiusport[MAXRADSERVER];       // radius base ports
        uint8_t         numradiusservers;               // radius server count


@@ -470,7 +463,6 @@ typedef struct
        unsigned long   rl_rate;                        // default throttle rate
        int             num_tbfs;                       // number of throttle buckets
 
        unsigned long   rl_rate;                        // default throttle rate
        int             num_tbfs;                       // number of throttle buckets
 

-       int             save_state;

        char            accounting_dir[128];
        in_addr_t       bind_address;
        in_addr_t       peer_address;
        char            accounting_dir[128];
        in_addr_t       bind_address;
        in_addr_t       peer_address;


@@ -597,7 +589,7 @@ void processipv6in(tunnelidt t, sessionidt s, uint8_t *p, uint16_t l);
 void processccp(tunnelidt t, sessionidt s, uint8_t *p, uint16_t l);
 void sendchap(tunnelidt t, sessionidt s);
 uint8_t *makeppp(uint8_t *b, int size, uint8_t *p, int l, tunnelidt t, sessionidt s, uint16_t mtype);
 void processccp(tunnelidt t, sessionidt s, uint8_t *p, uint16_t l);
 void sendchap(tunnelidt t, sessionidt s);
 uint8_t *makeppp(uint8_t *b, int size, uint8_t *p, int l, tunnelidt t, sessionidt s, uint16_t mtype);

-void initlcp(tunnelidt t, sessionidt s);
+void sendlcp(tunnelidt t, sessionidt s, int authtype);

 void send_ipin(sessionidt s, uint8_t *buf, int len);
 
 
 void send_ipin(sessionidt s, uint8_t *buf, int len);
 
 


@@ -618,7 +610,8 @@ sessionidt sessionbyip(in_addr_t ip);
 sessionidt sessionbyipv6(struct in6_addr ip);
 sessionidt sessionbyuser(char *username);
 void random_data(uint8_t *buf, int len);
 sessionidt sessionbyipv6(struct in6_addr ip);
 sessionidt sessionbyuser(char *username);
 void random_data(uint8_t *buf, int len);

-void sessionshutdown(sessionidt s, char *reason);
+void sessionkill(sessionidt s, char *reason);
+void sessionshutdown(sessionidt s, char *reason, int result, int error);

 void send_garp(in_addr_t ip);
 void tunnelsend(uint8_t *buf, uint16_t l, tunnelidt t);
 void sendipcp(tunnelidt t, sessionidt s);
 void send_garp(in_addr_t ip);
 void tunnelsend(uint8_t *buf, uint16_t l, tunnelidt t);
 void sendipcp(tunnelidt t, sessionidt s);