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enum { X25_LINK_STATE_0, X25_LINK_STATE_1, X25_LINK_STATE_2, X25_LINK_STATE_3 }; #define X25_DEFAULT_T20 (180 * HZ) /* Default T20 value */ #define X25_DEFAULT_T21 (200 * HZ) /* Default T21 value */ #define X25_DEFAULT_T22 (180 * HZ) /* Default T22 value */ #define X25_DEFAULT_T23 (180 * HZ) /* Default T23 value */ #define X25_DEFAULT_T2 (3 * HZ) /* Default ack holdback value */ #define X25_DEFAULT_WINDOW_SIZE 2 /* Default Window Size */ #define X25_DEFAULT_PACKET_SIZE X25_PS128 /* Default Packet Size */ #define X25_DEFAULT_THROUGHPUT 0x0A /* Deafult Throughput */ #define X25_DEFAULT_REVERSE 0x00 /* Default Reverse Charging */ #define X25_SMODULUS 8 #define X25_EMODULUS 128 /* * X.25 Facilities constants. */ #define X25_FAC_CLASS_MASK 0xC0 #define X25_FAC_CLASS_A 0x00 #define X25_FAC_CLASS_B 0x40 #define X25_FAC_CLASS_C 0x80 #define X25_FAC_CLASS_D 0xC0 #define X25_FAC_REVERSE 0x01 /* also fast select */ #define X25_FAC_THROUGHPUT 0x02 #define X25_FAC_PACKET_SIZE 0x42 #define X25_FAC_WINDOW_SIZE 0x43 #define X25_MAX_FAC_LEN 60 #define X25_MAX_CUD_LEN 128 #define X25_FAC_CALLING_AE 0xCB #define X25_FAC_CALLED_AE 0xC9 #define X25_MARKER 0x00 #define X25_DTE_SERVICES 0x0F #define X25_MAX_AE_LEN 40 /* Max num of semi-octets in AE - OSI Nw */ #define X25_MAX_DTE_FACIL_LEN 21 /* Max length of DTE facility params */ /* Bitset in x25_sock->flags for misc flags */ #define X25_Q_BIT_FLAG 0 #define X25_INTERRUPT_FLAG 1 #define X25_ACCPT_APPRV_FLAG 2 /** * struct x25_route - x25 routing entry * @node - entry in x25_list_lock * @address - Start of address range * @sigdigits - Number of sig digits * @dev - More than one for MLP * @refcnt - reference counter */ struct x25_route { struct list_head node; struct x25_address address; unsigned int sigdigits; struct net_device *dev; refcount_t refcnt; }; struct x25_neigh { struct list_head node; struct net_device *dev; unsigned int state; unsigned int extended; struct sk_buff_head queue; unsigned long t20; struct timer_list t20timer; unsigned long global_facil_mask; refcount_t refcnt; }; struct x25_sock { struct sock sk; struct x25_address source_addr, dest_addr; struct x25_neigh *neighbour; unsigned int lci, cudmatchlength; unsigned char state, condition; unsigned short vs, vr, va, vl; unsigned long t2, t21, t22, t23; unsigned short fraglen; unsigned long flags; struct sk_buff_head ack_queue; struct sk_buff_head fragment_queue; struct sk_buff_head interrupt_in_queue; struct sk_buff_head interrupt_out_queue; struct timer_list timer; struct x25_causediag causediag; struct x25_facilities facilities; struct x25_dte_facilities dte_facilities; struct x25_calluserdata calluserdata; unsigned long vc_facil_mask; /* inc_call facilities mask */ }; struct x25_forward { struct list_head node; unsigned int lci; struct net_device *dev1; struct net_device *dev2; atomic_t refcnt; }; static inline struct x25_sock *x25_sk(const struct sock *sk) { return (struct x25_sock *)sk; } /* af_x25.c */ extern int sysctl_x25_restart_request_timeout; extern int sysctl_x25_call_request_timeout; extern int sysctl_x25_reset_request_timeout; extern int sysctl_x25_clear_request_timeout; extern int sysctl_x25_ack_holdback_timeout; extern int sysctl_x25_forward; int x25_parse_address_block(struct sk_buff *skb, struct x25_address *called_addr, struct x25_address *calling_addr); int x25_addr_ntoa(unsigned char *, struct x25_address *, struct x25_address *); int x25_addr_aton(unsigned char *, struct x25_address *, struct x25_address *); struct sock *x25_find_socket(unsigned int, struct x25_neigh *); void x25_destroy_socket_from_timer(struct sock *); int x25_rx_call_request(struct sk_buff *, struct x25_neigh *, unsigned int); void x25_kill_by_neigh(struct x25_neigh *); /* x25_dev.c */ void x25_send_frame(struct sk_buff *, struct x25_neigh *); int x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *); void x25_establish_link(struct x25_neigh *); void x25_terminate_link(struct x25_neigh *); /* x25_facilities.c */ int x25_parse_facilities(struct sk_buff *, struct x25_facilities *, struct x25_dte_facilities *, unsigned long *); int x25_create_facilities(unsigned char *, struct x25_facilities *, struct x25_dte_facilities *, unsigned long); int x25_negotiate_facilities(struct sk_buff *, struct sock *, struct x25_facilities *, struct x25_dte_facilities *); void x25_limit_facilities(struct x25_facilities *, struct x25_neigh *); /* x25_forward.c */ void x25_clear_forward_by_lci(unsigned int lci); void x25_clear_forward_by_dev(struct net_device *); int x25_forward_data(int, struct x25_neigh *, struct sk_buff *); int x25_forward_call(struct x25_address *, struct x25_neigh *, struct sk_buff *, int); /* x25_in.c */ int x25_process_rx_frame(struct sock *, struct sk_buff *); int x25_backlog_rcv(struct sock *, struct sk_buff *); /* x25_link.c */ void x25_link_control(struct sk_buff *, struct x25_neigh *, unsigned short); void x25_link_device_up(struct net_device *); void x25_link_device_down(struct net_device *); void x25_link_established(struct x25_neigh *); void x25_link_terminated(struct x25_neigh *); void x25_transmit_clear_request(struct x25_neigh *, unsigned int, unsigned char); void x25_transmit_link(struct sk_buff *, struct x25_neigh *); int x25_subscr_ioctl(unsigned int, void __user *); struct x25_neigh *x25_get_neigh(struct net_device *); void x25_link_free(void); /* x25_neigh.c */ static __inline__ void x25_neigh_hold(struct x25_neigh *nb) { refcount_inc(&nb->refcnt); } static __inline__ void x25_neigh_put(struct x25_neigh *nb) { if (refcount_dec_and_test(&nb->refcnt)) kfree(nb); } /* x25_out.c */ int x25_output(struct sock *, struct sk_buff *); void x25_kick(struct sock *); void x25_enquiry_response(struct sock *); /* x25_route.c */ struct x25_route *x25_get_route(struct x25_address *addr); struct net_device *x25_dev_get(char *); void x25_route_device_down(struct net_device *dev); int x25_route_ioctl(unsigned int, void __user *); void x25_route_free(void); static __inline__ void x25_route_hold(struct x25_route *rt) { refcount_inc(&rt->refcnt); } static __inline__ void x25_route_put(struct x25_route *rt) { if (refcount_dec_and_test(&rt->refcnt)) kfree(rt); } /* x25_subr.c */ void x25_clear_queues(struct sock *); void x25_frames_acked(struct sock *, unsigned short); void x25_requeue_frames(struct sock *); int x25_validate_nr(struct sock *, unsigned short); void x25_write_internal(struct sock *, int); int x25_decode(struct sock *, struct sk_buff *, int *, int *, int *, int *, int *); void x25_disconnect(struct sock *, int, unsigned char, unsigned char); /* x25_timer.c */ void x25_init_timers(struct sock *sk); void x25_start_heartbeat(struct sock *); void x25_start_t2timer(struct sock *); void x25_start_t21timer(struct sock *); void x25_start_t22timer(struct sock *); void x25_start_t23timer(struct sock *); void x25_stop_heartbeat(struct sock *); void x25_stop_timer(struct sock *); unsigned long x25_display_timer(struct sock *); void x25_check_rbuf(struct sock *); /* sysctl_net_x25.c */ #ifdef CONFIG_SYSCTL int x25_register_sysctl(void); void x25_unregister_sysctl(void); #else static inline int x25_register_sysctl(void) { return 0; }; static inline void x25_unregister_sysctl(void) {}; #endif /* CONFIG_SYSCTL */ struct x25_skb_cb { unsigned int flags; }; #define X25_SKB_CB(s) ((struct x25_skb_cb *) ((s)->cb)) extern struct hlist_head x25_list; extern rwlock_t x25_list_lock; extern struct list_head x25_route_list; extern rwlock_t x25_route_list_lock; extern struct list_head x25_forward_list; extern rwlock_t x25_forward_list_lock; extern struct list_head x25_neigh_list; extern rwlock_t x25_neigh_list_lock; int x25_proc_init(void); void x25_proc_exit(void); #endif