1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * IPv4 support for nf_conntrack.
4  *
5  * 23 Mar 2004: Yasuyuki Kozakai @ USAGI <yasuyuki.kozakai@toshiba.co.jp>
6  *	- move L3 protocol dependent part from include/linux/netfilter_ipv4/
7  *	  ip_conntarck.h
8  */
9 
10 #ifndef _NF_CONNTRACK_IPV4_H
11 #define _NF_CONNTRACK_IPV4_H
12 
13 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp;
14 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_udp;
15 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp;
16 #ifdef CONFIG_NF_CT_PROTO_DCCP
17 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_dccp;
18 #endif
19 #ifdef CONFIG_NF_CT_PROTO_SCTP
20 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp;
21 #endif
22 #ifdef CONFIG_NF_CT_PROTO_UDPLITE
23 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite;
24 #endif
25 #ifdef CONFIG_NF_CT_PROTO_GRE
26 extern const struct nf_conntrack_l4proto nf_conntrack_l4proto_gre;
27 #endif
28 
29 #endif /*_NF_CONNTRACK_IPV4_H*/
30