// L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.114 2006/04/23 23:18:32 bodea Exp $
+// $Id: l2tpns.h,v 1.115 2006/04/27 09:53:50 bodea Exp $
#ifndef __L2TPNS_H__
#define __L2TPNS_H__
#include <sys/types.h>
#include <libcli.h>
-#define VERSION "2.1.19"
+#define VERSION "2.2.0"
// Limits
#define MAXTUNNEL 500 // could be up to 65535
+#define MAXBUNDLE 300 // could be up to 65535
+#define MAXBUNDLESES 10 // Maximum number of member links in bundle
+#define MAXADDRESS 20 // Maximum length for the Endpoint Discrminiator address
+#define MAXFRAGNUM 1500 // Maximum number of Multilink fragment in a bundle
+#define MAXFRAGLEN 1000 // Maximum length for Multilink fragment
#define MAXSESSION 60000 // could be up to 65535
#define MAXTBFS 6000 // Maximum token bucket filters. Might need up to 2 * session.
#define MAXIPPOOL 131072 // max number of ip addresses in pool
#define RINGBUFFER_SIZE 10000 // Number of ringbuffer entries to allocate
#define MAX_LOG_LENGTH 512 // Maximum size of log message
-#define ECHO_TIMEOUT 60 // Time between last packet sent and LCP ECHO generation
+#define ECHO_TIMEOUT 10 // 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 MP_BEGIN 0x80 // This value is used when (b)egin bit is set in MP header
+#define MP_END 0x40 // This value is used when (e)nd bit is set in MP header
+#define MP_BOTH_BITS 0xC0 // This value is used when both bits (begin and end) are set in MP header
+
+#define DEFAULT_EPDIS_ADDRESS "L2TPNetServer" // Company name may goes here!
+
// Constants
#ifndef ETCDIR
#define ETCDIR "/etc/l2tpns"
// Types
typedef uint16_t sessionidt;
+typedef uint16_t bundleidt;
typedef uint16_t tunnelidt;
typedef uint32_t clockt;
typedef uint8_t hasht[16];
}
controlt;
+typedef struct {
+ uint8_t length; // Endpoint Discriminator length
+ uint8_t addr_class; // Endpoint Discriminator class
+ uint8_t address[MAXADDRESS]; // Endpoint Discriminator address
+} epdist;
+
+typedef struct {
+ uint16_t length; // Fragment length
+ uint8_t data[MAXFRAGLEN]; // Fragment data
+} fragmentt;
+
typedef struct
{
sessionidt next; // next session in linked list
char calling[MAXTEL]; // calling number
uint32_t tx_connect_speed;
uint32_t rx_connect_speed;
+ clockt timeout; // Session timeout
+ uint32_t mrru; // Multilink Max-Receive-Reconstructed-Unit
+ uint8_t mssf; // Multilink Short Sequence Number Header Format
+ epdist epdis; // Multilink Endpoint Discriminator
+ bundleidt bundle; // Multilink Bundle Identifier
in_addr_t snoop_ip; // Interception destination IP
uint16_t snoop_port; // Interception destination port
uint8_t walled_garden; // is this session gardened?
}
sessiont;
+typedef struct
+{
+ int state; // current state (bundlestate enum)
+ uint32_t seq_num_t; // Sequence Number (transmission)
+ uint32_t seq_num_m; // Last received frame sequence number (bearing B bit)
+ uint32_t offset; // Offset between sequence number and array index
+ uint8_t pending_frag; // Indicate that there is pending fragments to reassemble
+ uint8_t num_of_links; // Number of links joint to this bundle
+ uint32_t online_time; // The time this bundle is online
+ clockt last_check; // Last time the timeout is checked
+ uint32_t mrru; // Multilink Max-Receive-Reconstructed-Unit
+ uint8_t mssf; // Multilink Short Sequence Number Header Format
+ epdist epdis; // Multilink Endpoint Discriminator
+ char user[MAXUSER]; // Needed for matching member links
+ sessionidt current_ses; // Current session to use for sending (used in RR load-balancing)
+ sessionidt members[MAXBUNDLESES]; // Array for member links sessions
+}
+bundlet;
+
+typedef struct
+{
+ fragmentt fragment[MAXFRAGNUM];
+ uint8_t reassembled_frame[MAXETHER]; // The reassembled frame
+ uint16_t re_frame_len; // The reassembled frame length
+}
+fragmentationt;
+
#define AUTHPAP 1 // allow PAP
#define AUTHCHAP 2 // allow CHAP
// our MRU
uint16_t ppp_mru;
+ // our MRRU
+ uint16_t mp_mrru;
+
+ // our mssf
+ uint16_t mp_mssf;
+
+ // our Endpoint Discriminator
+ in_addr_t mp_epdis;
+
// DoS prevention
clockt last_packet_out;
uint32_t packets_out;
TUNNELUNDEF, // Undefined
};
+enum
+{
+ BUNDLEFREE, // Not in use
+ BUNDLEOPEN, // Active bundle
+ BUNDLEUNDEF, // Undefined
+};
+
+enum
+{
+ NULLCLASS = 0, //End Point Discriminator classes
+ LOCALADDR,
+ IPADDR,
+ IEEEMACADDR,
+ PPPMAGIC,
+ PSNDN,
+};
+
enum
{
RADIUSNULL, // Not in use
int radius_authprefer;
int allow_duplicate_users; // allow multiple logins with the same username
+ char guest_user[MAXUSER]; // allow multiple logins to guest account username
in_addr_t default_dns1, default_dns2;
int lock_pages; // Lock pages into memory.
int icmp_rate; // Max number of ICMP unreachable per second to send
int max_packets; // DoS prevention: per session limit of packets/0.1s
+ char epdis_addr[20]; // MP Endpoint Discriminator address
in_addr_t cluster_address; // Multicast address of cluster.
// Send to this address to have everyone hear.
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).
int cluster_undefined_sessions; // How many sessions we're yet to receive from the master.
+ int cluster_undefined_bundles; // How many bundles we're yet to receive from the master.
int cluster_undefined_tunnels; // How many tunnels we're yet to receive from the master.
int cluster_highest_sessionid;
+ int cluster_highest_bundleid;
int cluster_highest_tunnelid;
clockt cluster_last_hb; // Last time we saw a heartbeat from the master.
int cluster_last_hb_ver; // Heartbeat version last seen from master
int cluster_hb_interval; // How often to send a heartbeat.
int cluster_hb_timeout; // How many missed heartbeats trigger an election.
uint64_t cluster_table_version; // # state changes processed by cluster
-
- struct in6_addr ipv6_prefix; // Our IPv6 network pool.
-
-
int cluster_master_min_adv; // Master advertises routes while the number of up to date
// slaves is less than this value.
+ struct in6_addr ipv6_prefix; // Our IPv6 network pool.
+
#ifdef BGP
#define BGP_NUM_PEERS 2
uint16_t as_number;
void processipcp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
void processipv6cp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
void processipin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
+void processmpin(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
+void processmpframe(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l, uint8_t extra);
void processipv6in(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
void processccp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l);
void sendchap(sessionidt s, tunnelidt t);
-uint8_t *makeppp(uint8_t *b, int size, uint8_t *p, int l, sessionidt s, tunnelidt t, uint16_t mtype);
+uint8_t *makeppp(uint8_t *b, int size, uint8_t *p, int l, sessionidt s, tunnelidt t, uint16_t mtype, uint8_t prio, bundleidt bid, uint8_t mp_bits);
void sendlcp(sessionidt s, tunnelidt t);
void send_ipin(sessionidt s, uint8_t *buf, int len);
void sendccp(sessionidt s, tunnelidt t);
void protoreject(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l, uint16_t proto);
+int join_bundle(sessionidt s);
// radius.c
extern tunnelt *tunnel;
+extern bundlet *bundle;
extern sessiont *session;
extern sessionlocalt *sess_local;
extern ippoolt *ip_address_pool;
projects / l2tpns.git / blobdiff