include/net/spx.h

   1 #ifndef __NET_SPX_H
   2 #define __NET_SPX_H
   3
   4 #include <net/ipx.h>
   5
   6 struct spxhdr
   7 {       __u8    cctl;
   8         __u8    dtype;
   9 #define SPX_DTYPE_ECONN 0xFE    /* Finished */
  10 #define SPX_DTYPE_ECACK 0xFF    /* Ok */
  11         __u16   sconn;  /* Connection ID */
  12         __u16   dconn;  /* Connection ID */
  13         __u16   sequence;
  14         __u16   ackseq;
  15         __u16   allocseq;
  16 };
  17
  18 struct ipxspxhdr
  19 {       struct ipxhdr   ipx;
  20         struct spxhdr   spx;
  21 };
  22
  23 #define SPX_SYS_PKT_LEN (sizeof(struct ipxspxhdr))
  24
  25 #ifdef __KERNEL__
  26 struct spx_opt
  27 {       int     state;
  28         int     sndbuf;
  29         int     retries;        /* Number of WD retries */
  30         int     retransmits;    /* Number of retransmits */
  31         int     max_retries;
  32         int     wd_interval;
  33         void    *owner;
  34         __u16   dest_connid;    /* Net order */
  35         __u16   source_connid;  /* Net order */
  36         __u16   sequence;       /* Host order - our current pkt # */
  37         __u16   alloc;          /* Host order - max seq we can rcv now */
  38         __u16   rmt_ack;        /* Host order - last pkt ACKd by remote */
  39         __u16   rmt_seq;
  40         __u16   acknowledge;
  41         __u16   rmt_alloc;      /* Host order - max seq remote can handle now */
  42         ipx_address     dest_addr;
  43         ipx_address     source_addr;
  44         struct timer_list       watchdog;       /* Idle watch */
  45         struct timer_list       retransmit;     /* Retransmit timer */
  46         struct sk_buff_head     rcv_queue;
  47         struct sk_buff_head     transmit_queue;
  48         struct sk_buff_head     retransmit_queue;
  49 };
  50
  51 /* Packet connectino control defines */
  52 #define CCTL_SPXII_XHD  0x01    /* SPX2 extended header */
  53 #define CCTL_SPX_UNKNOWN 0x02   /* Unknown (unused ??) */
  54 #define CCTL_SPXII_NEG  0x04    /* Negotiate size */
  55 #define CCTL_SPXII      0x08    /* Set for SPX2 */
  56 #define CCTL_EOM        0x10    /* End of message marker */
  57 #define CCTL_URG        0x20    /* Urgent marker in SPP (not used in SPX?) */
  58 #define CCTL_ACK        0x40    /* Send me an ACK */
  59 #define CCTL_CTL        0x80    /* Control message */
  60 #define CCTL_SYS        CCTL_CTL        /* Spec uses CCTL_SYS */
  61
  62 /* Connection state defines */
  63 #define SPX_CLOSED      7
  64 #define SPX_CONNECTING  8
  65 #define SPX_CONNECTED   9
  66
  67 /* Packet transmit types - Internal */
  68 #define DATA    0       /* Data */
  69 #define ACK     1       /* Data ACK */
  70 #define WDACK   2       /* WD ACK */
  71 #define CONACK  3       /* Connection Request ACK */
  72 #define CONREQ  4       /* Connection Request */
  73 #define WDREQ   5       /* WD Request */
  74 #define DISCON  6       /* Informed Disconnect */
  75 #define DISACK  7       /* Informed Disconnect ACK */
  76 #define RETRAN  8       /* Int. Retransmit of packet */
  77 #define TQUEUE  9       /* Int. Transmit of a queued packet */
  78
  79 /*
  80  * These are good canidates for IOcontrol calls
  81  */
  82
  83 /* Watchdog defines */
  84 #define VERIFY_TIMEOUT  3 * HZ
  85 #define ABORT_TIMEOUT   30 * HZ
  86
  87 /* Packet retransmit defines */
  88 #define RETRY_COUNT     10
  89 #define RETRY_TIME      1 * HZ
  90 #define MAX_RETRY_DELAY 5 * HZ
  91
  92 #endif /* __KERNEL__ */
  93 #endif /* def __NET_SPX_H */