include/net/netrom.h

/* */
   1 /*
   2  *      Declarations of NET/ROM type objects.
   3  *
   4  *      Jonathan Naylor G4KLX   9/4/95
   5  */
   6  
   7 #ifndef _NETROM_H
   8 #define _NETROM_H 
   9 #include <linux/netrom.h>
  10 
  11 #define NR_T1CLAMPLO   (1 * PR_SLOWHZ)  /* If defined, clamp at 1 second **/
  12 #define NR_T1CLAMPHI (300 * PR_SLOWHZ)  /* If defined, clamp at 30 seconds **/
  13 
  14 #define NR_NETWORK_LEN          15
  15 #define NR_TRANSPORT_LEN        5
  16  
  17 #define NR_PROTO_IP             0x0C
  18 
  19 #define NR_PROTOEXT             0x00
  20 #define NR_CONNREQ              0x01
  21 #define NR_CONNACK              0x02
  22 #define NR_DISCREQ              0x03
  23 #define NR_DISCACK              0x04
  24 #define NR_INFO                 0x05
  25 #define NR_INFOACK              0x06
  26 
  27 #define NR_CHOKE_FLAG           0x80
  28 #define NR_NAK_FLAG             0x40
  29 #define NR_MORE_FLAG            0x20
  30 
  31 /* Define Link State constants. */
  32 
  33 #define NR_STATE_0              0
  34 #define NR_STATE_1              1
  35 #define NR_STATE_2              2
  36 #define NR_STATE_3              3
  37 
  38 #define NR_DEFAULT_T1           (120 * PR_SLOWHZ)       /* Outstanding frames - 120 seconds */
  39 #define NR_DEFAULT_T2           (5   * PR_SLOWHZ)       /* Response delay     - 5 seconds */
  40 #define NR_DEFAULT_N2           3                       /* Number of Retries */
  41 #define NR_DEFAULT_T4           (180 * PR_SLOWHZ)       /* Transport Busy Delay */
  42 #define NR_DEFAULT_WINDOW       4                       /* Default Window Size  */
  43 #define NR_DEFAULT_OBS          6                       /* Default Obsolescence Count */
  44 #define NR_DEFAULT_QUAL         10                      /* Default Neighbour Quality */
  45 #define NR_DEFAULT_TTL          16                      /* Default Time To Live */
  46 #define NR_MODULUS              256
  47 #define NR_MAX_WINDOW_SIZE      127                     /* Maximum Window Allowable */
  48 #define NR_DEFAULT_PACLEN       236                     /* Default Packet Length */
  49 
  50 typedef struct {
  51         ax25_address            user_addr, source_addr, dest_addr;
  52         struct device           *device;
  53         unsigned char           my_index,   my_id;
  54         unsigned char           your_index, your_id;
  55         unsigned char           state, condition, bpqext, hdrincl;
  56         unsigned short          vs, vr, va, vl;
  57         unsigned char           n2, n2count;
  58         unsigned short          t1, t2, rtt;
  59         unsigned short          t1timer, t2timer, t4timer;
  60         unsigned short          fraglen, paclen;
  61         struct sk_buff_head     ack_queue;
  62         struct sk_buff_head     reseq_queue;
  63         struct sk_buff_head     frag_queue;
  64         struct sock             *sk;            /* Backlink to socket */
  65 } nr_cb;
  66 
  67 struct nr_route {
  68         unsigned char  quality;
  69         unsigned char  obs_count;
  70         unsigned short neighbour;
  71 };
  72 
  73 struct nr_node {
  74         struct nr_node  *next;
  75         ax25_address    callsign;
  76         char mnemonic[7];
  77         unsigned char   which;
  78         unsigned char   count;
  79         struct nr_route routes[3];
  80 };
  81 
  82 struct nr_neigh {
  83         struct nr_neigh *next;
  84         ax25_address    callsign;
  85         ax25_digi       *digipeat;
  86         struct device   *dev;
  87         unsigned char   quality;
  88         unsigned char   locked;
  89         unsigned short  count;
  90         unsigned short  number;
  91 };
  92 
  93 /* af_netrom.c */
  94 extern struct nr_parms_struct nr_default;
  95 extern int  nr_rx_frame(struct sk_buff *, struct device *);
  96 extern void nr_destroy_socket(struct sock *);
  97 
  98 /* nr_dev.c */
  99 extern int  nr_rx_ip(struct sk_buff *, struct device *);
 100 extern int  nr_init(struct device *);
 101 
 102 #include <net/nrcall.h>
 103 
 104 /* nr_in.c */
 105 extern int  nr_process_rx_frame(struct sock *, struct sk_buff *);
 106 
 107 /* nr_out.c */
 108 extern void nr_output(struct sock *, struct sk_buff *);
 109 extern void nr_send_nak_frame(struct sock *);
 110 extern void nr_kick(struct sock *);
 111 extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
 112 extern void nr_establish_data_link(struct sock *);
 113 extern void nr_enquiry_response(struct sock *);
 114 extern void nr_check_iframes_acked(struct sock *, unsigned short);
 115 
 116 /* nr_route.c */
 117 extern void nr_rt_device_down(struct device *);
 118 extern struct device *nr_dev_first(void);
 119 extern struct device *nr_dev_get(ax25_address *);
 120 extern int  nr_rt_ioctl(unsigned int, void *);
 121 extern void nr_link_failed(ax25_address *, struct device *);
 122 extern int  nr_route_frame(struct sk_buff *, ax25_cb *);
 123 extern int  nr_nodes_get_info(char *, char **, off_t, int, int);
 124 extern int  nr_neigh_get_info(char *, char **, off_t, int, int);
 125 
 126 /* nr_subr.c */
 127 extern void nr_clear_queues(struct sock *);
 128 extern void nr_frames_acked(struct sock *, unsigned short);
 129 extern void nr_requeue_frames(struct sock *);
 130 extern int  nr_validate_nr(struct sock *, unsigned short);
 131 extern int  nr_in_rx_window(struct sock *, unsigned short);
 132 extern void nr_write_internal(struct sock *, int);
 133 extern void nr_transmit_dm(struct sk_buff *);
 134 extern unsigned short nr_calculate_t1(struct sock *);
 135 extern void nr_calculate_rtt(struct sock *);
 136 
 137 /* ax25_timer */
 138 extern void nr_set_timer(struct sock *);
 139 
 140 #endif
/* */
root/include/net/netrom.h

INCLUDED FROM
