linux/include/net/rose.h
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   1/*
   2 *      Declarations of Rose type objects.
   3 *
   4 *      Jonathan Naylor G4KLX   25/8/96
   5 */
   6
   7#ifndef _ROSE_H
   8#define _ROSE_H 
   9
  10#include <linux/rose.h>
  11#include <net/sock.h>
  12
  13#define ROSE_ADDR_LEN                   5
  14
  15#define ROSE_MIN_LEN                    3
  16
  17#define ROSE_CALL_REQ_ADDR_LEN_OFF      3
  18#define ROSE_CALL_REQ_ADDR_LEN_VAL      0xAA    /* each address is 10 digits */
  19#define ROSE_CALL_REQ_DEST_ADDR_OFF     4
  20#define ROSE_CALL_REQ_SRC_ADDR_OFF      9
  21#define ROSE_CALL_REQ_FACILITIES_OFF    14
  22
  23#define ROSE_GFI                        0x10
  24#define ROSE_Q_BIT                      0x80
  25#define ROSE_D_BIT                      0x40
  26#define ROSE_M_BIT                      0x10
  27
  28#define ROSE_CALL_REQUEST               0x0B
  29#define ROSE_CALL_ACCEPTED              0x0F
  30#define ROSE_CLEAR_REQUEST              0x13
  31#define ROSE_CLEAR_CONFIRMATION         0x17
  32#define ROSE_DATA                       0x00
  33#define ROSE_INTERRUPT                  0x23
  34#define ROSE_INTERRUPT_CONFIRMATION     0x27
  35#define ROSE_RR                         0x01
  36#define ROSE_RNR                        0x05
  37#define ROSE_REJ                        0x09
  38#define ROSE_RESET_REQUEST              0x1B
  39#define ROSE_RESET_CONFIRMATION         0x1F
  40#define ROSE_REGISTRATION_REQUEST       0xF3
  41#define ROSE_REGISTRATION_CONFIRMATION  0xF7
  42#define ROSE_RESTART_REQUEST            0xFB
  43#define ROSE_RESTART_CONFIRMATION       0xFF
  44#define ROSE_DIAGNOSTIC                 0xF1
  45#define ROSE_ILLEGAL                    0xFD
  46
  47/* Define Link State constants. */
  48
  49enum {
  50        ROSE_STATE_0,                   /* Ready */
  51        ROSE_STATE_1,                   /* Awaiting Call Accepted */
  52        ROSE_STATE_2,                   /* Awaiting Clear Confirmation */
  53        ROSE_STATE_3,                   /* Data Transfer */
  54        ROSE_STATE_4,                   /* Awaiting Reset Confirmation */
  55        ROSE_STATE_5                    /* Deferred Call Acceptance */
  56};
  57
  58#define ROSE_DEFAULT_T0                 180000          /* Default T10 T20 value */
  59#define ROSE_DEFAULT_T1                 200000          /* Default T11 T21 value */
  60#define ROSE_DEFAULT_T2                 180000          /* Default T12 T22 value */
  61#define ROSE_DEFAULT_T3                 180000          /* Default T13 T23 value */
  62#define ROSE_DEFAULT_HB                 5000            /* Default Holdback value */
  63#define ROSE_DEFAULT_IDLE               0               /* No Activity Timeout - none */
  64#define ROSE_DEFAULT_ROUTING            1               /* Default routing flag */
  65#define ROSE_DEFAULT_FAIL_TIMEOUT       120000          /* Time until link considered usable */
  66#define ROSE_DEFAULT_MAXVC              50              /* Maximum number of VCs per neighbour */
  67#define ROSE_DEFAULT_WINDOW_SIZE        7               /* Default window size */
  68
  69#define ROSE_MODULUS                    8
  70#define ROSE_MAX_PACKET_SIZE            251             /* Maximum packet size */
  71
  72#define ROSE_COND_ACK_PENDING           0x01
  73#define ROSE_COND_PEER_RX_BUSY          0x02
  74#define ROSE_COND_OWN_RX_BUSY           0x04
  75
  76#define FAC_NATIONAL                    0x00
  77#define FAC_CCITT                       0x0F
  78
  79#define FAC_NATIONAL_RAND               0x7F
  80#define FAC_NATIONAL_FLAGS              0x3F
  81#define FAC_NATIONAL_DEST_DIGI          0xE9
  82#define FAC_NATIONAL_SRC_DIGI           0xEB
  83#define FAC_NATIONAL_FAIL_CALL          0xED
  84#define FAC_NATIONAL_FAIL_ADD           0xEE
  85#define FAC_NATIONAL_DIGIS                      0xEF
  86
  87#define FAC_CCITT_DEST_NSAP             0xC9
  88#define FAC_CCITT_SRC_NSAP              0xCB
  89
  90struct rose_neigh {
  91        struct rose_neigh       *next;
  92        ax25_address            callsign;
  93        ax25_digi               *digipeat;
  94        ax25_cb                 *ax25;
  95        struct net_device               *dev;
  96        unsigned short          count;
  97        unsigned short          use;
  98        unsigned int            number;
  99        char                    restarted;
 100        char                    dce_mode;
 101        char                    loopback;
 102        struct sk_buff_head     queue;
 103        struct timer_list       t0timer;
 104        struct timer_list       ftimer;
 105};
 106
 107struct rose_node {
 108        struct rose_node        *next;
 109        rose_address            address;
 110        unsigned short          mask;
 111        unsigned char           count;
 112        char                    loopback;
 113        struct rose_neigh       *neighbour[3];
 114};
 115
 116struct rose_route {
 117        struct rose_route       *next;
 118        unsigned int            lci1, lci2;
 119        rose_address            src_addr, dest_addr;
 120        ax25_address            src_call, dest_call;
 121        struct rose_neigh       *neigh1, *neigh2;
 122        unsigned int            rand;
 123};
 124
 125struct rose_sock {
 126        struct sock             sock;
 127        rose_address            source_addr,   dest_addr;
 128        ax25_address            source_call,   dest_call;
 129        unsigned char           source_ndigis, dest_ndigis;
 130        ax25_address            source_digis[ROSE_MAX_DIGIS];
 131        ax25_address            dest_digis[ROSE_MAX_DIGIS];
 132        struct rose_neigh       *neighbour;
 133        struct net_device               *device;
 134        unsigned int            lci, rand;
 135        unsigned char           state, condition, qbitincl, defer;
 136        unsigned char           cause, diagnostic;
 137        unsigned short          vs, vr, va, vl;
 138        unsigned long           t1, t2, t3, hb, idle;
 139#ifdef M_BIT
 140        unsigned short          fraglen;
 141        struct sk_buff_head     frag_queue;
 142#endif
 143        struct sk_buff_head     ack_queue;
 144        struct rose_facilities_struct facilities;
 145        struct timer_list       timer;
 146        struct timer_list       idletimer;
 147};
 148
 149#define rose_sk(sk) ((struct rose_sock *)(sk))
 150
 151/* af_rose.c */
 152extern ax25_address rose_callsign;
 153extern int  sysctl_rose_restart_request_timeout;
 154extern int  sysctl_rose_call_request_timeout;
 155extern int  sysctl_rose_reset_request_timeout;
 156extern int  sysctl_rose_clear_request_timeout;
 157extern int  sysctl_rose_no_activity_timeout;
 158extern int  sysctl_rose_ack_hold_back_timeout;
 159extern int  sysctl_rose_routing_control;
 160extern int  sysctl_rose_link_fail_timeout;
 161extern int  sysctl_rose_maximum_vcs;
 162extern int  sysctl_rose_window_size;
 163extern int  rosecmp(rose_address *, rose_address *);
 164extern int  rosecmpm(rose_address *, rose_address *, unsigned short);
 165extern char *rose2asc(char *buf, const rose_address *);
 166extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
 167extern void rose_kill_by_neigh(struct rose_neigh *);
 168extern unsigned int rose_new_lci(struct rose_neigh *);
 169extern int  rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int);
 170extern void rose_destroy_socket(struct sock *);
 171
 172/* rose_dev.c */
 173extern void  rose_setup(struct net_device *);
 174
 175/* rose_in.c */
 176extern int  rose_process_rx_frame(struct sock *, struct sk_buff *);
 177
 178/* rose_link.c */
 179extern void rose_start_ftimer(struct rose_neigh *);
 180extern void rose_stop_ftimer(struct rose_neigh *);
 181extern void rose_stop_t0timer(struct rose_neigh *);
 182extern int  rose_ftimer_running(struct rose_neigh *);
 183extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
 184extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char);
 185extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
 186
 187/* rose_loopback.c */
 188extern void rose_loopback_init(void);
 189extern void rose_loopback_clear(void);
 190extern int  rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
 191
 192/* rose_out.c */
 193extern void rose_kick(struct sock *);
 194extern void rose_enquiry_response(struct sock *);
 195
 196/* rose_route.c */
 197extern struct rose_neigh *rose_loopback_neigh;
 198extern const struct file_operations rose_neigh_fops;
 199extern const struct file_operations rose_nodes_fops;
 200extern const struct file_operations rose_routes_fops;
 201
 202extern void rose_add_loopback_neigh(void);
 203extern int __must_check rose_add_loopback_node(rose_address *);
 204extern void rose_del_loopback_node(rose_address *);
 205extern void rose_rt_device_down(struct net_device *);
 206extern void rose_link_device_down(struct net_device *);
 207extern struct net_device *rose_dev_first(void);
 208extern struct net_device *rose_dev_get(rose_address *);
 209extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
 210extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *, int);
 211extern int  rose_rt_ioctl(unsigned int, void __user *);
 212extern void rose_link_failed(ax25_cb *, int);
 213extern int  rose_route_frame(struct sk_buff *, ax25_cb *);
 214extern void rose_rt_free(void);
 215
 216/* rose_subr.c */
 217extern void rose_clear_queues(struct sock *);
 218extern void rose_frames_acked(struct sock *, unsigned short);
 219extern void rose_requeue_frames(struct sock *);
 220extern int  rose_validate_nr(struct sock *, unsigned short);
 221extern void rose_write_internal(struct sock *, int);
 222extern int  rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
 223extern int  rose_parse_facilities(unsigned char *, unsigned int, struct rose_facilities_struct *);
 224extern void rose_disconnect(struct sock *, int, int, int);
 225
 226/* rose_timer.c */
 227extern void rose_start_heartbeat(struct sock *);
 228extern void rose_start_t1timer(struct sock *);
 229extern void rose_start_t2timer(struct sock *);
 230extern void rose_start_t3timer(struct sock *);
 231extern void rose_start_hbtimer(struct sock *);
 232extern void rose_start_idletimer(struct sock *);
 233extern void rose_stop_heartbeat(struct sock *);
 234extern void rose_stop_timer(struct sock *);
 235extern void rose_stop_idletimer(struct sock *);
 236
 237/* sysctl_net_rose.c */
 238extern void rose_register_sysctl(void);
 239extern void rose_unregister_sysctl(void);
 240
 241#endif
 242
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