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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | /* * Declarations of X.25 Packet Layer type objects. * * History * nov/17/96 Jonathan Naylor Initial version. * mar/20/00 Daniela Squassoni Disabling/enabling of facilities * negotiation. */ #ifndef _X25_H #define _X25_H #include <linux/x25.h> #define X25_ADDR_LEN 16 #define X25_MAX_L2_LEN 18 /* 802.2 LLC */ #define X25_STD_MIN_LEN 3 #define X25_EXT_MIN_LEN 4 #define X25_GFI_SEQ_MASK 0x30 #define X25_GFI_STDSEQ 0x10 #define X25_GFI_EXTSEQ 0x20 #define X25_Q_BIT 0x80 #define X25_D_BIT 0x40 #define X25_STD_M_BIT 0x10 #define X25_EXT_M_BIT 0x01 #define X25_CALL_REQUEST 0x0B #define X25_CALL_ACCEPTED 0x0F #define X25_CLEAR_REQUEST 0x13 #define X25_CLEAR_CONFIRMATION 0x17 #define X25_DATA 0x00 #define X25_INTERRUPT 0x23 #define X25_INTERRUPT_CONFIRMATION 0x27 #define X25_RR 0x01 #define X25_RNR 0x05 #define X25_REJ 0x09 #define X25_RESET_REQUEST 0x1B #define X25_RESET_CONFIRMATION 0x1F #define X25_REGISTRATION_REQUEST 0xF3 #define X25_REGISTRATION_CONFIRMATION 0xF7 #define X25_RESTART_REQUEST 0xFB #define X25_RESTART_CONFIRMATION 0xFF #define X25_DIAGNOSTIC 0xF1 #define X25_ILLEGAL 0xFD /* Define the various conditions that may exist */ #define X25_COND_ACK_PENDING 0x01 #define X25_COND_OWN_RX_BUSY 0x02 #define X25_COND_PEER_RX_BUSY 0x04 /* Define Link State constants. */ enum { X25_STATE_0, /* Ready */ X25_STATE_1, /* Awaiting Call Accepted */ X25_STATE_2, /* Awaiting Clear Confirmation */ X25_STATE_3, /* Data Transfer */ X25_STATE_4 /* Awaiting Reset Confirmation */ }; 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 #define X25_FAC_THROUGHPUT 0x02 #define X25_FAC_PACKET_SIZE 0x42 #define X25_FAC_WINDOW_SIZE 0x43 #define X25_MAX_FAC_LEN 20 /* Plenty to spare */ #define X25_MAX_CUD_LEN 128 struct x25_route { struct x25_route *next; x25_address address; /* Start of address range */ unsigned int sigdigits; /* Number of sig digits */ struct net_device *dev; /* More than one for MLP */ }; struct x25_neigh { struct x25_neigh *next; 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; }; typedef struct { x25_address source_addr, dest_addr; struct x25_neigh *neighbour; unsigned int lci; unsigned char state, condition, qbitincl, intflag; unsigned short vs, vr, va, vl; unsigned long t2, t21, t22, t23; unsigned short fraglen; 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 sock *sk; /* Backlink to socket */ struct timer_list timer; struct x25_causediag causediag; struct x25_facilities facilities; struct x25_calluserdata calluserdata; unsigned long vc_facil_mask; /* inc_call facilities mask */ } x25_cb; /* 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 x25_addr_ntoa(unsigned char *, x25_address *, x25_address *); extern int x25_addr_aton(unsigned char *, x25_address *, x25_address *); extern unsigned int x25_new_lci(struct x25_neigh *); extern struct sock *x25_find_socket(unsigned int, struct x25_neigh *); extern void x25_destroy_socket(struct sock *); extern int x25_rx_call_request(struct sk_buff *, struct x25_neigh *, unsigned int); extern void x25_kill_by_neigh(struct x25_neigh *); /* x25_dev.c */ extern void x25_send_frame(struct sk_buff *, struct x25_neigh *); extern int x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *); extern int x25_llc_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *); extern void x25_establish_link(struct x25_neigh *); extern void x25_terminate_link(struct x25_neigh *); /* x25_facilities.c */ extern int x25_parse_facilities(struct sk_buff *, struct x25_facilities *, unsigned long *); extern int x25_create_facilities(unsigned char *, struct x25_facilities *, unsigned long); extern int x25_negotiate_facilities(struct sk_buff *, struct sock *, struct x25_facilities *); extern void x25_limit_facilities(struct x25_facilities *, struct x25_neigh *); /* x25_in.c */ extern int x25_process_rx_frame(struct sock *, struct sk_buff *); extern int x25_backlog_rcv(struct sock *, struct sk_buff *); /* x25_link.c */ extern void x25_link_control(struct sk_buff *, struct x25_neigh *, unsigned short); extern void x25_link_device_up(struct net_device *); extern void x25_link_device_down(struct net_device *); extern void x25_link_established(struct x25_neigh *); extern void x25_link_terminated(struct x25_neigh *); extern void x25_transmit_restart_request(struct x25_neigh *); extern void x25_transmit_restart_confirmation(struct x25_neigh *); extern void x25_transmit_diagnostic(struct x25_neigh *, unsigned char); extern void x25_transmit_clear_request(struct x25_neigh *, unsigned int, unsigned char); extern void x25_transmit_link(struct sk_buff *, struct x25_neigh *); extern int x25_subscr_ioctl(unsigned int, void *); extern struct x25_neigh *x25_get_neigh(struct net_device *); extern void x25_link_free(void); /* x25_out.c */ extern int x25_output(struct sock *, struct sk_buff *); extern void x25_kick(struct sock *); extern void x25_enquiry_response(struct sock *); /* x25_route.c */ extern struct net_device *x25_get_route(x25_address *); extern struct net_device *x25_dev_get(char *); extern void x25_route_device_down(struct net_device *); extern int x25_route_ioctl(unsigned int, void *); extern int x25_routes_get_info(char *, char **, off_t, int); extern void x25_route_free(void); /* x25_subr.c */ extern void x25_clear_queues(struct sock *); extern void x25_frames_acked(struct sock *, unsigned short); extern void x25_requeue_frames(struct sock *); extern int x25_validate_nr(struct sock *, unsigned short); extern void x25_write_internal(struct sock *, int); extern int x25_decode(struct sock *, struct sk_buff *, int *, int *, int *, int *, int *); extern void x25_disconnect(struct sock *, int, unsigned char, unsigned char); /* x25_timer.c */ extern void x25_start_heartbeat(struct sock *); extern void x25_start_t2timer(struct sock *); extern void x25_start_t21timer(struct sock *); extern void x25_start_t22timer(struct sock *); extern void x25_start_t23timer(struct sock *); extern void x25_stop_heartbeat(struct sock *); extern void x25_stop_timer(struct sock *); extern unsigned long x25_display_timer(struct sock *); extern void x25_check_rbuf(struct sock *); /* sysctl_net_x25.c */ extern void x25_register_sysctl(void); extern void x25_unregister_sysctl(void); struct x25_skb_cb { unsigned flags; }; #define X25_SKB_CB(s) ((struct x25_skb_cb *) ((s)->cb)) #endif |