include/linux/netfilter/nf_conntrack_tftp.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _NF_CONNTRACK_TFTP_H
   3 #define _NF_CONNTRACK_TFTP_H
   4
   5 #define TFTP_PORT 69
   6
   7 struct tftphdr {
   8         __be16 opcode;
   9 };
  10
  11 #define TFTP_OPCODE_READ        1
  12 #define TFTP_OPCODE_WRITE       2
  13 #define TFTP_OPCODE_DATA        3
  14 #define TFTP_OPCODE_ACK         4
  15 #define TFTP_OPCODE_ERROR       5
  16
  17 extern unsigned int (*nf_nat_tftp_hook)(struct sk_buff *skb,
  18                                         enum ip_conntrack_info ctinfo,
  19                                         struct nf_conntrack_expect *exp);
  20
  21 #endif /* _NF_CONNTRACK_TFTP_H */