1 files changed, 82 insertions, 0 deletions
diff --git a/include/linux/netfilter/nfnetlink_hook.h b/include/linux/netfilter/nfnetlink_hook.h
new file mode 100644
index 00000000..84a561a7
--- /dev/null
+++ b/include/linux/netfilter/nfnetlink_hook.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _NFNL_HOOK_H_
+#define _NFNL_HOOK_H_
+
+enum nfnl_hook_msg_types {
+	NFNL_MSG_HOOK_GET,
+	NFNL_MSG_HOOK_MAX,
+};
+
+/**
+ * enum nfnl_hook_attributes - netfilter hook netlink attributes
+ *
+ * @NFNLA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
+ * @NFNLA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
+ * @NFNLA_HOOK_DEV: netdevice name (NLA_STRING)
+ * @NFNLA_HOOK_FUNCTION_NAME: hook function name (NLA_STRING)
+ * @NFNLA_HOOK_MODULE_NAME: kernel module that registered this hook (NLA_STRING)
+ * @NFNLA_HOOK_CHAIN_INFO: basechain hook metadata (NLA_NESTED)
+ */
+enum nfnl_hook_attributes {
+	NFNLA_HOOK_UNSPEC,
+	NFNLA_HOOK_HOOKNUM,
+	NFNLA_HOOK_PRIORITY,
+	NFNLA_HOOK_DEV,
+	NFNLA_HOOK_FUNCTION_NAME,
+	NFNLA_HOOK_MODULE_NAME,
+	NFNLA_HOOK_CHAIN_INFO,
+	__NFNLA_HOOK_MAX
+};
+#define NFNLA_HOOK_MAX		(__NFNLA_HOOK_MAX - 1)
+
+/**
+ * enum nfnl_hook_chain_info_attributes - chain description
+ *
+ * @NFNLA_HOOK_INFO_DESC: nft chain and table name (NLA_NESTED)
+ * @NFNLA_HOOK_INFO_TYPE: chain type (enum nfnl_hook_chaintype) (NLA_U32)
+ *
+ * NFNLA_HOOK_INFO_DESC depends on NFNLA_HOOK_INFO_TYPE value:
+ *   NFNL_HOOK_TYPE_NFTABLES: enum nft_table_attributes
+ *   NFNL_HOOK_TYPE_BPF: enum nfnl_hook_bpf_attributes
+ */
+enum nfnl_hook_chain_info_attributes {
+	NFNLA_HOOK_INFO_UNSPEC,
+	NFNLA_HOOK_INFO_DESC,
+	NFNLA_HOOK_INFO_TYPE,
+	__NFNLA_HOOK_INFO_MAX,
+};
+#define NFNLA_HOOK_INFO_MAX (__NFNLA_HOOK_INFO_MAX - 1)
+
+enum nfnl_hook_chain_desc_attributes {
+	NFNLA_CHAIN_UNSPEC,
+	NFNLA_CHAIN_TABLE,
+	NFNLA_CHAIN_FAMILY,
+	NFNLA_CHAIN_NAME,
+	__NFNLA_CHAIN_MAX,
+};
+#define NFNLA_CHAIN_MAX (__NFNLA_CHAIN_MAX - 1)
+
+/**
+ * enum nfnl_hook_chaintype - chain type
+ *
+ * @NFNL_HOOK_TYPE_NFTABLES: nf_tables base chain
+ * @NFNL_HOOK_TYPE_BPF: bpf program
+ */
+enum nfnl_hook_chaintype {
+	NFNL_HOOK_TYPE_NFTABLES = 0x1,
+	NFNL_HOOK_TYPE_BPF,
+};
+
+/**
+ * enum nfnl_hook_bpf_attributes - bpf prog description
+ *
+ * @NFNLA_HOOK_BPF_ID: bpf program id (NLA_U32)
+ */
+enum nfnl_hook_bpf_attributes {
+	NFNLA_HOOK_BPF_UNSPEC,
+	NFNLA_HOOK_BPF_ID,
+	__NFNLA_HOOK_BPF_MAX,
+};
+#define NFNLA_HOOK_BPF_MAX (__NFNLA_HOOK_BPF_MAX - 1)
+
+#endif /* _NFNL_HOOK_H */