Adding the possibility to listening multiple IP L2TP tunnels.

[l2tpns.git] / l2tpns.h

diff --git a/l2tpns.h b/l2tpns.h
index 092c683..e962256 100644 (file)
--- a/l2tpns.h
+++ b/l2tpns.h
@@ -66,6 +66,13 @@
                                        // it's not expected to have a space for more than 10 unassembled packets = 10 * MAXBUNDLESES
 #define        MAXFRAGNUM_MASK (MAXFRAGNUM - 1)                // Must be equal to MAXFRAGNUM-1
 
+// Multi bind address constants
+#define MAX_UDPFD 4
+#define MAX_BINDADDR MAX_UDPFD
+// 4 + 1 for the udplac
+#define INIT_TABUDPFD {-1, -1, -1, -1, -1}
+#define INIT_TABUDPVAR {0, 0, 0, 0, 0}
+
 // Constants
 #ifndef ETCDIR
 #define ETCDIR         "/etc/l2tpns"
@@ -322,14 +329,9 @@ typedef struct
        char class[MAXCLASS];
        uint8_t ipv6prefixlen;          // IPv6 route prefix length
        struct in6_addr ipv6route;      // Static IPv6 route
-#ifdef LAC
        sessionidt forwardtosession;    // LNS id_session to forward
        uint8_t src_hwaddr[ETH_ALEN];   // MAC addr source (for pppoe sessions 6 bytes)
        char reserved[4];               // Space to expand structure without changing HB_VERSION
-#else
-       uint8_t src_hwaddr[ETH_ALEN];   // MAC addr source (for pppoe sessions 6 bytes)
-       char reserved[6];               // Space to expand structure without changing HB_VERSION
-#endif
 }
 sessiont;
 
@@ -449,12 +451,9 @@ typedef struct
        uint16_t controlc;      // outstaind messages in queue
        controlt *controls;     // oldest message
        controlt *controle;     // newest message
-#ifdef LAC
        uint16_t isremotelns;   // != 0 if the tunnel is to remote LNS (== index on the conf remote lns)
-       char reserved[14];              // Space to expand structure without changing HB_VERSION
-#else
-       char reserved[16];              // Space to expand structure without changing HB_VERSION
-#endif
+       uint16_t indexudp;      // Index UDP file handle (in udpfd[])
+       char reserved[12];              // Space to expand structure without changing HB_VERSION
 }
 tunnelt;
 
@@ -765,19 +764,23 @@ typedef struct
        int idle_echo_timeout; // Time between last packet seen and
                                                   // Drop sessions who have not responded within IDLE_ECHO_TIMEOUT seconds
        in_addr_t iftun_address;
-#ifdef LAC
        int disable_lac_func;
        int auth_tunnel_change_addr_src;
        int highest_rlnsid;
        uint16_t bind_portremotelns;
        in_addr_t bind_address_remotelns;
-#endif
        char pppoe_if_to_bind[IFNAMSIZ];        // Name pppoe interface to bind
        char pppoe_service_name[64];    // pppoe service name
        char pppoe_ac_name[64];
        uint8_t pppoe_hwaddr[ETH_ALEN]; // MAC addr of interface pppoe to bind
        int disable_sending_hello; // Disable l2tp sending HELLO message for Apple compatibility.
        int disable_no_spoof; // Disable no spoof (permit load balancing client --> internet)
+       int nbudpfd; // number UDP file handle
+       int nbmultiaddress; // number multi address to bind
+       int indexlacudpfd;      // Index UDP LAC file handle (in udpfd[])
+       in_addr_t bind_n_address[MAX_BINDADDR];
+       in_addr_t iftun_n_address[MAX_BINDADDR];
+       char bind_multi_address[256];
 } configt;
 
 enum config_typet { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IPv4, IPv6 };
@@ -913,9 +916,7 @@ void radiusretry(uint16_t r);
 uint16_t radiusnew(sessionidt s);
 void radiusclear(uint16_t r, sessionidt s);
 void processdae(uint8_t *buf, int len, struct sockaddr_in *addr, int alen, struct in_addr *local);
-#ifdef LAC
 int rad_tunnel_pwdecode(uint8_t *pl2tpsecret, size_t *pl2tpsecretlen, const char *radiussecret, const uint8_t * auth);
-#endif
 
 // l2tpns.c
 clockt backoff(uint8_t try);
@@ -935,7 +936,7 @@ int tun_write(uint8_t *data, int size);
 void adjust_tcp_mss(sessionidt s, tunnelidt t, uint8_t *buf, int len, uint8_t *tcp);
 void sendipcp(sessionidt s, tunnelidt t);
 void sendipv6cp(sessionidt s, tunnelidt t);
-void processudp(uint8_t *buf, int len, struct sockaddr_in *addr);
+void processudp(uint8_t *buf, int len, struct sockaddr_in *addr, uint16_t indexudpfd);
 void processipout(uint8_t *buf, int len);
 void snoop_send_packet(uint8_t *packet, uint16_t size, in_addr_t destination, uint16_t port);
 int find_filter(char const *name, size_t len);
@@ -943,13 +944,11 @@ int ip_filter(uint8_t *buf, int len, uint8_t filter);
 int cmd_show_ipcache(struct cli_def *cli, char *command, char **argv, int argc);
 int cmd_show_hist_idle(struct cli_def *cli, char *command, char **argv, int argc);
 int cmd_show_hist_open(struct cli_def *cli, char *command, char **argv, int argc);
-#ifdef LAC
 tunnelidt lac_new_tunnel();
 void lac_tunnelclear(tunnelidt t);
 void lac_send_SCCRQ(tunnelidt t, uint8_t * auth, unsigned int auth_len);
 void lac_send_ICRQ(tunnelidt t, sessionidt s);
 void lac_tunnelshutdown(tunnelidt t, char *reason, int result, int error, char *msg);
-#endif
 
 #undef LOG
 #undef LOG_HEX
@@ -1009,13 +1008,10 @@ struct event_data {
                FD_TYPE_RADIUS,
                FD_TYPE_BGP,
                FD_TYPE_NETLINK,
-#ifdef LAC
-               FD_TYPE_UDPLAC,
-#endif
                FD_TYPE_PPPOEDISC,
                FD_TYPE_PPPOESESS
        } type;
-       int index; // for RADIUS, BGP
+       int index; // for RADIUS, BGP, UDP
 };
 
 #define TIME (config->current_time)