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
7struct 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
17extern 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 */
22