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#ifndef __NET_SPX_H
#define __NET_SPX_H
#include <net/ipx.h>
struct spxhdr
{ __u8 cctl;
__u8 dtype;
#define SPX_DTYPE_ECONN 0xFE /* Finished */
#define SPX_DTYPE_ECACK 0xFF /* Ok */
__u16 sconn; /* Connection ID */
__u16 dconn; /* Connection ID */
__u16 sequence;
__u16 ackseq;
__u16 allocseq;
};
struct ipxspxhdr
{ struct ipxhdr ipx;
struct spxhdr spx;
};
#define SPX_SYS_PKT_LEN (sizeof(struct ipxspxhdr))
#ifdef __KERNEL__
struct spx_opt
{ int state;
int sndbuf;
int retries; /* Number of WD retries */
int retransmits; /* Number of retransmits */
int max_retries;
int wd_interval;
void *owner;
__u16 dest_connid; /* Net order */
__u16 source_connid; /* Net order */
__u16 sequence; /* Host order - our current pkt # */
__u16 alloc; /* Host order - max seq we can rcv now */
__u16 rmt_ack; /* Host order - last pkt ACKd by remote */
__u16 rmt_seq;
__u16 acknowledge;
__u16 rmt_alloc; /* Host order - max seq remote can handle now */
ipx_address dest_addr;
ipx_address source_addr;
struct timer_list watchdog; /* Idle watch */
struct timer_list retransmit; /* Retransmit timer */
struct sk_buff_head rcv_queue;
struct sk_buff_head transmit_queue;
struct sk_buff_head retransmit_queue;
};
/* Packet connectino control defines */
#define CCTL_SPXII_XHD 0x01 /* SPX2 extended header */
#define CCTL_SPX_UNKNOWN 0x02 /* Unknown (unused ??) */
#define CCTL_SPXII_NEG 0x04 /* Negotiate size */
#define CCTL_SPXII 0x08 /* Set for SPX2 */
#define CCTL_EOM 0x10 /* End of message marker */
#define CCTL_URG 0x20 /* Urgent marker in SPP (not used in SPX?) */
#define CCTL_ACK 0x40 /* Send me an ACK */
#define CCTL_CTL 0x80 /* Control message */
#define CCTL_SYS CCTL_CTL /* Spec uses CCTL_SYS */
/* Connection state defines */
#define SPX_CLOSED 7
#define SPX_CONNECTING 8
#define SPX_CONNECTED 9
/* Packet transmit types - Internal */
#define DATA 0 /* Data */
#define ACK 1 /* Data ACK */
#define WDACK 2 /* WD ACK */
#define CONACK 3 /* Connection Request ACK */
#define CONREQ 4 /* Connection Request */
#define WDREQ 5 /* WD Request */
#define DISCON 6 /* Informed Disconnect */
#define DISACK 7 /* Informed Disconnect ACK */
#define RETRAN 8 /* Int. Retransmit of packet */
#define TQUEUE 9 /* Int. Transmit of a queued packet */
/*
* These are good canidates for IOcontrol calls
*/
/* Watchdog defines */
#define VERIFY_TIMEOUT 3 * HZ
#define ABORT_TIMEOUT 30 * HZ
/* Packet retransmit defines */
#define RETRY_COUNT 10
#define RETRY_TIME 1 * HZ
#define MAX_RETRY_DELAY 5 * HZ
#endif /* __KERNEL__ */
#endif /* def __NET_SPX_H */
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