/* udpcs.h */

typedef struct
{
   unsigned int magic;         /* Magic # = 0x1a2b3c4d */
   unsigned int ptype;         /* Packet type          */
   unsigned int seq;           /* Packet seq #         */
}  apphdr_t;

#define PKT_CONN_REQ  101
#define PKT_CONN_ACK  102
#define PKT_CLOSE_REQ 103
#define PKT_CLOSE_ACK 104
#define PKT_DATA      128      /* This is a pure data frame    */
#define PKT_DATA_POLL 129      /* Data frame + poll for status */
#define PKT_STAT_RESP 130      /* Status reply to poll         */

#define UDPCS_MAGIC   0x1a2b3c4d

/* This structure maps a stat response */

typedef struct
{
   apphdr_t     apphdr;
   unsigned int thisseq;       /* Seq # of poll frame             */
   unsigned int drops;         /* Total number of dropped packets */
                               /* since the start of the conn.    */
} statresp_t;