1 /* tftp defines */

     2 

     3 #define TFTP_SESSIONS_MAX 3

     4 

     5 #define TFTP_SERVER	69

     6 

     7 #define TFTP_RRQ    1

     8 #define TFTP_WRQ    2

     9 #define TFTP_DATA   3

    10 #define TFTP_ACK    4

    11 #define TFTP_ERROR  5

    12 #define TFTP_OACK   6

    13 

    14 #define TFTP_FILENAME_MAX 512

    15 

    16 struct tftp_t {

    17   struct ip ip;

    18   struct udphdr udp;

    19   u_int16_t tp_op;

    20   union {

    21     struct {

    22       u_int16_t tp_block_nr;

    23       u_int8_t tp_buf[512];

    24     } tp_data;

    25     struct {

    26       u_int16_t tp_error_code;

    27       u_int8_t tp_msg[512];

    28     } tp_error;

    29     u_int8_t tp_buf[512 + 2];

    30   } x;

    31 };

    32 

    33 void tftp_input(struct mbuf *m);