slirp/tftp.h

   1 /* tftp defines */
   2
   3 #ifndef SLIRP_TFTP_H
   4 #define SLIRP_TFTP_H
   5
   6 #define TFTP_SESSIONS_MAX 20
   7
   8 #define TFTP_SERVER     69
   9
  10 #define TFTP_RRQ    1
  11 #define TFTP_WRQ    2
  12 #define TFTP_DATA   3
  13 #define TFTP_ACK    4
  14 #define TFTP_ERROR  5
  15 #define TFTP_OACK   6
  16
  17 #define TFTP_FILENAME_MAX 512
  18 #define TFTP_BLOCKSIZE_MAX 1428
  19
  20 struct tftp_t {
  21   struct udphdr udp;
  22   uint16_t tp_op;
  23   union {
  24     struct {
  25       uint16_t tp_block_nr;
  26       uint8_t tp_buf[TFTP_BLOCKSIZE_MAX];
  27     } tp_data;
  28     struct {
  29       uint16_t tp_error_code;
  30       uint8_t tp_msg[TFTP_BLOCKSIZE_MAX];
  31     } tp_error;
  32     char tp_buf[TFTP_BLOCKSIZE_MAX + 2];
  33   } x;
  34 } __attribute__((packed));
  35
  36 struct tftp_session {
  37     Slirp *slirp;
  38     char *filename;
  39     int fd;
  40     uint16_t block_size;
  41
  42     struct sockaddr_storage client_addr;
  43     uint16_t client_port;
  44     uint32_t block_nr;
  45
  46     int timestamp;
  47 };
  48
  49 void tftp_input(struct sockaddr_storage *srcsas, struct mbuf *m);
  50
  51 #endif