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Annotation of Net2/arch/i386/netboot/packet.h, revision 1.1.1.1

1.1       root        1: /* netboot
                      2:  *
                      3:  * packet.h,v
                      4:  * Revision 1.1  1993/07/08  16:04:08  brezak
                      5:  * Diskless boot prom code from Jim McKim ([email protected])
                      6:  *
                      7:  * Revision 1.1.1.1  1993/05/28  11:41:08  mckim
                      8:  * Initial version.
                      9:  *
                     10:  *
                     11:  * source in this file came from
                     12:  * the Mach ethernet boot written by Leendert van Doorn.
                     13:  *
                     14:  * Packet layout definitions
                     15:  */
                     16: 
                     17: /* implementation constants */
                     18: #define        PKT_POOLSIZE    5
                     19: #define        PKT_DATASIZE    1514
                     20: 
                     21: /*
                     22:  * Structure of a packet.
                     23:  * Each packet can hold exactly one ethernet message.
                     24:  */
                     25: typedef struct {
                     26:   u_short pkt_used;                    /* whether this packet it used */
                     27:   u_short pkt_len;                     /* length of data  */
                     28:   u_char *pkt_offset;                  /* current offset in data */
                     29:   u_char pkt_data[PKT_DATASIZE];       /* packet data */
                     30: } packet_t;
                     31: 
                     32: void PktInit(void);
                     33: packet_t *PktAlloc(u_long);
                     34: void PktRelease(packet_t *);

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