X-Git-Url: http://git.sameswireless.fr/l2tpns.git/blobdiff_plain/92db0e2617cec9b118708c722c1a9f273001f87d..0834bba08ed4f1e507320306dc682d7e62371af5:/l2tpns.h diff --git a/l2tpns.h b/l2tpns.h index 8e3d26e..8143736 100644 --- a/l2tpns.h +++ b/l2tpns.h @@ -49,7 +49,7 @@ #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 seen and session shutdown +#define IDLE_ECHO_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 @@ -57,10 +57,10 @@ #define MP_BOTH_BITS 0xC0 // This value is used when both bits (begin and end) are set in MP header #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) +#define MAXFRAGLEN 1496 // Maximum length for Multilink fragment (The multilink may contain only one link) +#define MAXFRAGNUM 512 // 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 +#define MAXFRAGNUM_MASK 511 // Must be equal to MAXFRAGNUM-1 // Constants #ifndef ETCDIR @@ -258,8 +258,10 @@ typedef struct { typedef struct { sessionidt sid; // Fragment originating session + tunnelidt tid; // Fragment originating tunnel uint8_t flags; // MP frame flags uint32_t seq; // fragment seq num + uint32_t jitteravg; uint16_t length; // Fragment length uint8_t data[MAXFRAGLEN]; // Fragment data } fragmentt; @@ -319,7 +321,12 @@ 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 + char reserved[10]; // Space to expand structure without changing HB_VERSION +#else char reserved[12]; // Space to expand structure without changing HB_VERSION +#endif } sessiont; @@ -407,6 +414,11 @@ typedef struct // Last Multilink frame sequence number received uint32_t last_seq; + + // jitter average of the session + uint32_t jitteravg; + // time in milliseconds of the last fragment. + uint64_t prev_time; } sessionlocalt; // session flags @@ -414,7 +426,7 @@ typedef struct #define SESSION_ACFC (1 << 1) // use Address-and-Control-Field-Compression #define SESSION_STARTED (1 << 2) // RADIUS Start record sent -// 168 bytes per tunnel +// 328 bytes per tunnel typedef struct { tunnelidt far; // far end tunnel ID @@ -434,6 +446,12 @@ 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 } tunnelt; @@ -739,6 +757,15 @@ typedef struct in_addr_t nexthop_address; struct in6_addr nexthop6_address; #endif + + int echo_timeout; // Time between last packet sent and LCP ECHO generation + int idle_echo_timeout; // Time between last packet seen and + // Drop sessions who have not responded within IDLE_ECHO_TIMEOUT seconds +#ifdef LAC + int disable_lac_func; + int highest_rlnsid; + uint16_t bind_portremotelns; +#endif } configt; enum config_typet { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IPv4, IPv6 }; @@ -832,6 +859,13 @@ typedef struct #define TERM_PORT_REINIT 21 #define TERM_PORT_DISABLED 22 +// on slaves, alow BGP to withdraw cleanly before exiting +#define QUIT_DELAY 5 + +// quit actions (master) +#define QUIT_FAILOVER 1 // SIGTERM: exit when all control messages have been acked (for cluster failover) +#define QUIT_SHUTDOWN 2 // SIGQUIT: shutdown sessions/tunnels, reject new connections + // arp.c void sendarp(int ifr_idx, const unsigned char* mac, in_addr_t ip); @@ -840,6 +874,7 @@ void sendarp(int ifr_idx, const unsigned char* mac, in_addr_t ip); void processpap(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l); void processchap(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l); void lcp_open(sessionidt s, tunnelidt t); +void lcp_restart(sessionidt s); void processlcp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l); void processipcp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l); void processipv6cp(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l); @@ -865,7 +900,9 @@ 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); @@ -886,12 +923,20 @@ void adjust_tcp_mss(sessionidt s, tunnelidt t, uint8_t *buf, int len, uint8_t *t void sendipcp(sessionidt s, tunnelidt t); void sendipv6cp(sessionidt s, tunnelidt t); void processudp(uint8_t *buf, int len, struct sockaddr_in *addr); +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); 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 @@ -951,6 +996,9 @@ struct event_data { FD_TYPE_RADIUS, FD_TYPE_BGP, FD_TYPE_NETLINK, +#ifdef LAC + FD_TYPE_UDPLAC, +#endif } type; int index; // for RADIUS, BGP };