linux/net/netfilter/nf_nat_ovs.c

// SPDX-License-Identifier: GPL-2.0-only
/* Support nat functions for openvswitch and used by OVS and TC conntrack. */

#include <net/netfilter/nf_nat.h>

/* Modelled after nf_nat_ipv[46]_fn().
 * range is only used for new, uninitialized NAT state.
 * Returns either NF_ACCEPT or NF_DROP.
 */
static int nf_ct_nat_execute(struct sk_buff *skb, struct nf_conn *ct,
			     enum ip_conntrack_info ctinfo, int *action,
			     const struct nf_nat_range2 *range,
			     enum nf_nat_manip_type maniptype)
{ … }

int nf_ct_nat(struct sk_buff *skb, struct nf_conn *ct,
	      enum ip_conntrack_info ctinfo, int *action,
	      const struct nf_nat_range2 *range, bool commit)
{ … }
EXPORT_SYMBOL_GPL(…);