// L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.116 2006/04/27 14:37:28 bodea Exp $
+// $Id: l2tpns.h,v 1.121 2009/12/08 14:49:28 bodea Exp $
#ifndef __L2TPNS_H__
#define __L2TPNS_H__
// 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 MAXBUNDLESES 12 // 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 PPPoE_MRU 1492 // maximum PPPoE MRU (rfc2516: 1500 less PPPoE header (6) and PPP protocol ID (2))
#define MAXETHER (MAXMTU+18) // max packet we try sending to tun
#define MAXTEL 96 // telephone number
+#define MAXHOSTNAME 256 // hostname
#define MAXUSER 128 // username
#define MAXPASS 128 // password
#define MAXPLUGINS 20 // maximum number of plugins to load
#define RINGBUFFER_SIZE 10000 // Number of ringbuffer entries to allocate
#define MAX_LOG_LENGTH 512 // Maximum size of log message
#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 IDLE_TIMEOUT 240 // Time between last packet seen and session shutdown
#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 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!
+#define MINFRAGLEN 64 // Minumum fragment length
+#define MAXFRAGLEN 750 // Maximum length for Multilink fragment (MTU / 2 sessions)
+#define MAXFRAGNUM 128 // Maximum number of Multilink fragment in a bundle (must be in the form of 2^X)
+ // it's not expected to have a space for more than 10 unassembled packets = 10 * MAXBUNDLESES
+#define MAXFRAGNUM_MASK 127 // Must be equal to MAXFRAGNUM-1
// Constants
#ifndef ETCDIR
typedef struct // route
{
in_addr_t ip;
- in_addr_t mask;
+ int prefixlen;
}
routet;
{
struct controls *next; // next in queue
uint16_t length; // length
- uint8_t buf[MAXCONTROL];
+ union {
+ uint8_t buf[MAXCONTROL];
+ uint16_t buf16[MAXCONTROL/2];
+ } __attribute__ ((__transparent_union__));
}
controlt;
} epdist;
typedef struct {
- uint16_t length; // Fragment length
- uint8_t data[MAXFRAGLEN]; // Fragment data
+ sessionidt sid; // Fragment originating session
+ uint8_t flags; // MP frame flags
+ uint32_t seq; // fragment seq num
+ uint16_t length; // Fragment length
+ uint8_t data[MAXFRAGLEN]; // Fragment data
} fragmentt;
typedef struct
uint16_t mru; // maximum receive unit
clockt opened; // when started
clockt die; // being closed, when to finally free
+ uint32_t session_timeout; // Maximum session time in seconds
+ uint32_t idle_timeout; // Maximum idle time in seconds
time_t last_packet; // Last packet from the user (used for idle timeouts)
+ time_t last_data; // Last data packet to/from the user (used for idle timeouts)
in_addr_t dns1, dns2; // DNS servers
routet route[MAXROUTE]; // static routes
uint16_t tbf_in; // filter bucket for throttling in from the user.
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
+ 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?
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
+ int state; // current state (bundlestate enum)
+ uint32_t seq_num_t; // Sequence Number (transmission)
+ uint32_t timeout; // Session-Timeout for bundle
+ uint32_t max_seq; // Max value of sequence number field
+ 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
+ fragmentt fragment[MAXFRAGNUM];
+ uint8_t reassembled_frame[MAXETHER]; // The reassembled frame
+ uint16_t re_frame_len; // The reassembled frame length
+ uint16_t re_frame_begin_index, re_frame_end_index; // reassembled frame begin index, end index respectively
+ uint16_t start_index, end_index; // start and end sequence numbers available on the fragments array respectively
+ uint32_t M; // Minumum frame sequence number received over all bundle members
+ uint32_t start_seq; // Last received frame sequence number (bearing B bit)
}
fragmentationt;
// last LCP Echo
time_t last_echo;
+
+ // Last Multilink frame sequence number received
+ uint32_t last_seq;
} sessionlocalt;
// session flags
RADIUSSTOP, // sending stop accounting to RADIUS server
RADIUSINTERIM, // sending interim accounting to RADIUS server
RADIUSWAIT, // waiting timeout before available, in case delayed replies
+ RADIUSJUSTAUTH, // sending auth to RADIUS server, just authentication, no ip assigning
};
struct Tstats
#define SET_STAT(x, y)
#endif
+#ifndef IFNAMSIZ
+# define IFNAMSIZ 16
+#endif
+
typedef struct
{
int debug; // debugging level
int reload_config; // flag to re-read config (set by cli)
int multi_read_count; // amount of packets to read per fd in processing loop
- char tundevice[10]; // tun device name
+ char tundevice[IFNAMSIZ]; // tun device name
char log_filename[128];
char l2tp_secret[64]; // L2TP shared secret
uint16_t radiusport[MAXRADSERVER]; // radius base ports
uint8_t numradiusservers; // radius server count
- uint16_t radius_dae_port; // local port for radius dae
+ uint16_t radius_dae_port; // port for radius DAE
+ uint16_t radius_bind_min; // port range for udp sockets used to send/recv radius packets
+ uint16_t radius_bind_max;
char radius_authtypes_s[32]; // list of valid authentication types (chap, pap) in order of preference
int radius_authtypes;
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
+ int kill_timedout_sessions; // kill authenticated sessions with "session_timeout == 0"
in_addr_t default_dns1, default_dns2;
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
- 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.
+
+ int cluster_master_min_adv; // Master advertises routes while the number of up to date
+ // slaves is less than this value.
+ in_addr_t cli_bind_address; // bind address for CLI
+ char hostname[MAXHOSTNAME]; // hostname (overridden by -h on command line)
+ // Guest change
+ char guest_user[MAXUSER]; // Guest account username
+
#ifdef BGP
#define BGP_NUM_PEERS 2
uint16_t as_number;
uint16_t as;
int keepalive;
int hold;
+ struct in_addr update_source;
} neighbour[BGP_NUM_PEERS];
+ in_addr_t nexthop_address;
+ struct in6_addr nexthop6_address;
#endif
} configt;
// cli.c
-void init_cli(char *hostname);
+void init_cli();
+void cli_init_hostname(char *hostname);
void cli_do_file(FILE *fh);
void cli_do(int sockfd);
int cli_arg_help(struct cli_def *cli, int cr_ok, char *entry, ...);
FD_TYPE_DAE,
FD_TYPE_RADIUS,
FD_TYPE_BGP,
+ FD_TYPE_NETLINK,
} type;
int index; // for RADIUS, BGP
};
projects / l2tpns.git / blobdiff