include/net/rose.h

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