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--- /dev/null
+++ b/extensions/libxt_FLOWOFFLOAD.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <xtables.h>
+#include <linux/netfilter/xt_FLOWOFFLOAD.h>
+
+enum {
+ O_HW,
+};
+
+static void offload_help(void)
+{
+ printf(
+"FLOWOFFLOAD target options:\n"
+" --hw Enable hardware offload\n"
+ );
+}
+
+static const struct xt_option_entry offload_opts[] = {
+ {.name = "hw", .id = O_HW, .type = XTTYPE_NONE},
+ XTOPT_TABLEEND,
+};
+
+static void offload_parse(struct xt_option_call *cb)
+{
+ struct xt_flowoffload_target_info *info = cb->data;
+
+ xtables_option_parse(cb);
+ switch (cb->entry->id) {
+ case O_HW:
+ info->flags |= XT_FLOWOFFLOAD_HW;
+ break;
+ }
+}
+
+static void offload_print(const void *ip, const struct xt_entry_target *target, int numeric)
+{
+ const struct xt_flowoffload_target_info *info =
+ (const struct xt_flowoffload_target_info *)target->data;
+
+ printf(" FLOWOFFLOAD");
+ if (info->flags & XT_FLOWOFFLOAD_HW)
+ printf(" hw");
+}
+
+static void offload_save(const void *ip, const struct xt_entry_target *target)
+{
+ const struct xt_flowoffload_target_info *info =
+ (const struct xt_flowoffload_target_info *)target->data;
+
+ if (info->flags & XT_FLOWOFFLOAD_HW)
+ printf(" --hw");
+}
+
+static struct xtables_target offload_tg_reg[] = {
+ {
+ .family = NFPROTO_UNSPEC,
+ .name = "FLOWOFFLOAD",
+ .revision = 0,
+ .version = XTABLES_VERSION,
+ .size = XT_ALIGN(sizeof(struct xt_flowoffload_target_info)),
+ .userspacesize = sizeof(struct xt_flowoffload_target_info),
+ .help = offload_help,
+ .print = offload_print,
+ .save = offload_save,
+ .x6_parse = offload_parse,
+ .x6_options = offload_opts,
+ },
+};
+
+void _init(void)
+{
+ xtables_register_targets(offload_tg_reg, ARRAY_SIZE(offload_tg_reg));
+}
--- /dev/null
+++ b/include/linux/netfilter/xt_FLOWOFFLOAD.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _XT_FLOWOFFLOAD_H
+#define _XT_FLOWOFFLOAD_H
+
+#include <linux/types.h>
+
+enum {
+ XT_FLOWOFFLOAD_HW = 1 << 0,
+
+ XT_FLOWOFFLOAD_MASK = XT_FLOWOFFLOAD_HW
+};
+
+struct xt_flowoffload_target_info {
+ __u32 flags;
+};
+
+#endif /* _XT_FLOWOFFLOAD_H */
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