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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <stdbool.h>
#include <stdint.h>
#include "sd-netlink.h"
#include "firewall-util.h"
#include "in-addr-util.h"
typedef enum FirewallBackend {
FW_BACKEND_NONE,
#if HAVE_LIBIPTC
FW_BACKEND_IPTABLES,
#endif
FW_BACKEND_NFTABLES,
_FW_BACKEND_MAX,
_FW_BACKEND_INVALID = -EINVAL,
} FirewallBackend;
struct FirewallContext {
FirewallBackend backend;
sd_netlink *nfnl;
};
const char *firewall_backend_to_string(FirewallBackend b) _const_;
int fw_nftables_init(FirewallContext *ctx);
int fw_nftables_init_full(FirewallContext *ctx, bool init_tables);
void fw_nftables_exit(FirewallContext *ctx);
int fw_nftables_add_masquerade(
FirewallContext *ctx,
bool add,
int af,
const union in_addr_union *source,
unsigned source_prefixlen);
int fw_nftables_add_local_dnat(
FirewallContext *ctx,
bool add,
int af,
int protocol,
uint16_t local_port,
const union in_addr_union *remote,
uint16_t remote_port,
const union in_addr_union *previous_remote);
#if HAVE_LIBIPTC
struct xtc_handle;
int fw_iptables_add_masquerade(
bool add,
int af,
const union in_addr_union *source,
unsigned source_prefixlen);
int fw_iptables_add_local_dnat(
bool add,
int af,
int protocol,
uint16_t local_port,
const union in_addr_union *remote,
uint16_t remote_port,
const union in_addr_union *previous_remote);
int fw_iptables_init_nat(struct xtc_handle **ret);
#endif
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