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 #include <linux/rose.h>
  10
  11 #define ROSE_SLOWHZ                     10      /* Run timing at 1/10 second */
  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 };
  50
  51 #define ROSE_DEFAULT_T0                 (180 * ROSE_SLOWHZ)     /* Default T10 T20 value */
  52 #define ROSE_DEFAULT_T1                 (200 * ROSE_SLOWHZ)     /* Default T11 T21 value */
  53 #define ROSE_DEFAULT_T2                 (180 * ROSE_SLOWHZ)     /* Default T12 T22 value */
  54 #define ROSE_DEFAULT_T3                 (180 * ROSE_SLOWHZ)     /* Default T13 T23 value */
  55 #define ROSE_DEFAULT_HB                 (5 * ROSE_SLOWHZ)       /* Default Holdback value */
  56 #define ROSE_DEFAULT_IDLE               (20 * 60 * ROSE_SLOWHZ) /* Default No Activity value */
  57 #define ROSE_DEFAULT_ROUTING            1                       /* Default routing flag */
  58 #define ROSE_DEFAULT_FAIL_TIMEOUT       (120 * ROSE_SLOWHZ)     /* Time until link considered usable */
  59 #define ROSE_DEFAULT_MAXVC              50                      /* Maximum number of VCs per neighbour */
  60 #define ROSE_DEFAULT_WINDOW_SIZE        3                       /* Default window size */
  61
  62 #define ROSE_MODULUS                    8
  63 #define ROSE_MAX_PACKET_SIZE            256                     /* Maximum packet size */
  64
  65 #define ROSE_COND_ACK_PENDING           0x01
  66 #define ROSE_COND_PEER_RX_BUSY          0x02
  67 #define ROSE_COND_OWN_RX_BUSY           0x04
  68
  69 #define FAC_NATIONAL                    0x00
  70 #define FAC_CCITT                       0x0F
  71
  72 #define FAC_NATIONAL_RAND               0x7F
  73 #define FAC_NATIONAL_FLAGS              0x3F
  74 #define FAC_NATIONAL_DEST_DIGI          0xE9
  75 #define FAC_NATIONAL_SRC_DIGI           0xEB
  76
  77 #define FAC_CCITT_DEST_NSAP             0xC9
  78 #define FAC_CCITT_SRC_NSAP              0xCB
  79
  80 struct rose_neigh {
  81         struct rose_neigh       *next;
  82         ax25_address            callsign;
  83         ax25_digi               *digipeat;
  84         struct device           *dev;
  85         unsigned short          count;
  86         unsigned int            number;
  87         char                    restarted;
  88         char                    dce_mode;
  89         struct sk_buff_head     queue;
  90         unsigned short          t0timer, ftimer;
  91         struct timer_list       timer;
  92 };
  93
  94 struct rose_node {
  95         struct rose_node        *next;
  96         rose_address            address;
  97         unsigned short          mask;
  98         unsigned char           count;
  99         struct rose_neigh       *neighbour[3];
 100 };
 101
 102 struct rose_route {
 103         struct rose_route       *next;
 104         unsigned int            lci1, lci2;
 105         rose_address            src_addr, dest_addr;
 106         ax25_address            src_call, dest_call;
 107         struct rose_neigh       *neigh1, *neigh2;
 108         unsigned int            rand;
 109 };
 110
 111 struct rose_facilities {
 112         rose_address            source_addr,   dest_addr;
 113         ax25_address            source_call,   dest_call;
 114         unsigned char           source_ndigis, dest_ndigis;
 115         ax25_address            source_digi,   dest_digi;
 116         unsigned int            rand;
 117 };
 118
 119 typedef struct {
 120         rose_address            source_addr,   dest_addr;
 121         ax25_address            source_call,   dest_call;
 122         unsigned char           source_ndigis, dest_ndigis;
 123         ax25_address            source_digi,   dest_digi;
 124         struct rose_neigh       *neighbour;
 125         struct device           *device;
 126         unsigned int            lci, rand;
 127         unsigned char           state, condition, qbitincl;
 128         unsigned short          vs, vr, va, vl;
 129         unsigned short          timer;
 130         unsigned short          t1, t2, t3, hb, idle;
 131         unsigned short          fraglen;
 132         struct sk_buff_head     frag_queue;
 133         struct sock             *sk;            /* Backlink to socket */
 134 } rose_cb;
 135
 136 /* af_rose.c */
 137 extern ax25_address rose_callsign;
 138 extern int  sysctl_rose_restart_request_timeout;
 139 extern int  sysctl_rose_call_request_timeout;
 140 extern int  sysctl_rose_reset_request_timeout;
 141 extern int  sysctl_rose_clear_request_timeout;
 142 extern int  sysctl_rose_no_activity_timeout;
 143 extern int  sysctl_rose_ack_hold_back_timeout;
 144 extern int  sysctl_rose_routing_control;
 145 extern int  sysctl_rose_link_fail_timeout;
 146 extern int  sysctl_rose_maximum_vcs;
 147 extern int  sysctl_rose_window_size;
 148 extern int  rosecmp(rose_address *, rose_address *);
 149 extern int  rosecmpm(rose_address *, rose_address *, unsigned short);
 150 extern char *rose2asc(rose_address *);
 151 extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
 152 extern void rose_kill_by_neigh(struct rose_neigh *);
 153 extern unsigned int rose_new_lci(struct rose_neigh *);
 154 extern int  rose_rx_call_request(struct sk_buff *, struct device *, struct rose_neigh *, unsigned int);
 155 extern void rose_destroy_socket(struct sock *);
 156
 157 /* rose_dev.c */
 158 extern int  rose_rx_ip(struct sk_buff *, struct device *);
 159 extern int  rose_init(struct device *);
 160
 161 #include <net/rosecall.h>
 162
 163 /* rose_in.c */
 164 extern int  rose_process_rx_frame(struct sock *, struct sk_buff *);
 165
 166 /* rose_link.c */
 167 extern void rose_link_set_timer(struct rose_neigh *);
 168 extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
 169 extern void rose_transmit_restart_request(struct rose_neigh *);
 170 extern void rose_transmit_restart_confirmation(struct rose_neigh *);
 171 extern void rose_transmit_diagnostic(struct rose_neigh *, unsigned char);
 172 extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char);
 173 extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
 174
 175 /* rose_out.c */
 176 extern void rose_output(struct sock *, struct sk_buff *);
 177 extern void rose_kick(struct sock *);
 178 extern void rose_enquiry_response(struct sock *);
 179 extern void rose_check_iframes_acked(struct sock *, unsigned short);
 180
 181 /* rose_route.c */
 182 extern void rose_rt_device_down(struct device *);
 183 extern void rose_link_device_down(struct device *);
 184 extern struct device *rose_dev_first(void);
 185 extern struct device *rose_dev_get(rose_address *);
 186 extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
 187 extern struct device *rose_ax25_dev_get(char *);
 188 extern struct rose_neigh *rose_get_neigh(rose_address *);
 189 extern int  rose_rt_ioctl(unsigned int, void *);
 190 extern void rose_link_failed(ax25_address *, struct device *);
 191 extern int  rose_route_frame(struct sk_buff *, ax25_cb *);
 192 extern int  rose_nodes_get_info(char *, char **, off_t, int, int);
 193 extern int  rose_neigh_get_info(char *, char **, off_t, int, int);
 194 extern int  rose_routes_get_info(char *, char **, off_t, int, int);
 195 extern void rose_rt_free(void);
 196
 197 /* rose_subr.c */
 198 extern void rose_clear_queues(struct sock *);
 199 extern int  rose_validate_nr(struct sock *, unsigned short);
 200 extern void rose_write_internal(struct sock *, int);
 201 extern int  rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
 202 extern int  rose_parse_facilities(struct sk_buff *, struct rose_facilities *);
 203 extern int  rose_create_facilities(unsigned char *, rose_cb *);
 204
 205 /* rose_timer.c */
 206 extern void rose_set_timer(struct sock *);
 207
 208 /* sysctl_net_rose.c */
 209 extern void rose_register_sysctl(void);
 210 extern void rose_unregister_sysctl(void);
 211
 212 #endif