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

1.1       root        1: /* netboot
                      2:  *
                      3:  * tftp.h,v
                      4:  * Revision 1.1  1993/07/08  16:04:13  brezak
                      5:  * Diskless boot prom code from Jim McKim ([email protected])
                      6:  *
                      7:  * Revision 1.2  1993/06/30  20:14:17  mckim
                      8:  * Added BOOTP support.
                      9:  *
                     10:  * Revision 1.1.1.1  1993/05/28  11:41:08  mckim
                     11:  * Initial version.
                     12:  *
                     13:  *
                     14:  * source in this file came from
                     15:  * the Mach ethernet boot written by Leendert van Doorn.
                     16:  *
                     17:  * Trivial File Transfer Protocol (see RFC 783)
                     18:  */
                     19: 
                     20: #define        SEGSIZE         512             /* data segment size */
                     21: 
                     22: /*
                     23:  * Packet types
                     24:  */
                     25: #define        TFTP_RRQ        01              /* read request */
                     26: #define        TFTP_WRQ        02              /* write request */
                     27: #define        TFTP_DATA       03              /* data packet */
                     28: #define        TFTP_ACK        04              /* acknowledgement */
                     29: #define        TFTP_ERROR      05              /* error code */
                     30: 
                     31: /*
                     32:  * TFTP header structure
                     33:  */
                     34: typedef struct {
                     35:   u_short      th_op;                  /* packet type */
                     36:   union {
                     37:     u_short    tu_block;               /* block # */
                     38:     u_short    tu_code;                /* error code */
                     39:     char       tu_stuff[1];            /* request packet stuff */
                     40:     } th_u;
                     41: } tftphdr_t;
                     42: 
                     43: /* for ease of reference */
                     44: #define        th_block        th_u.tu_block
                     45: #define        th_code         th_u.tu_code
                     46: #define        th_stuff        th_u.tu_stuff
                     47: #define        th_data         th_stuff[2]
                     48: #define        th_msg          th_data
                     49: 
                     50: void SetTftpParms(ipaddr_t server, ipaddr_t gateway, char *file_name);
                     51: u_long Read(void *result, u_long nbytes);
                     52: u_long PhysRead(u_long addr, u_long nbytes);
                     53: void IpSend(packet_t *pkt, ipaddr_t dst, ipaddr_t gateway);

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