1 files changed, 80 insertions, 0 deletions
diff --git a/include/buffer.h b/include/buffer.h
new file mode 100644
index 0000000..2b497f2
--- /dev/null
+++ b/include/buffer.h
@@ -0,0 +1,80 @@
+#ifndef _NFT_BUFFER_H_
+#define _NFT_BUFFER_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+struct nft_buf {
+	char		*buf;
+	size_t		size;
+	size_t		len;
+	uint32_t	off;
+	bool		fail;
+};
+
+#define NFT_BUF_INIT(__b, __buf, __len)			\
+	struct nft_buf __b = {				\
+		.buf	= __buf,			\
+		.len	= __len,			\
+	};
+
+int nft_buf_update(struct nft_buf *b, int ret);
+int nft_buf_done(struct nft_buf *b);
+
+union nft_data_reg;
+
+int nft_buf_open(struct nft_buf *b, int type, const char *tag);
+int nft_buf_close(struct nft_buf *b, int type, const char *tag);
+
+int nft_buf_u32(struct nft_buf *b, int type, uint32_t value, const char *tag);
+int nft_buf_s32(struct nft_buf *b, int type, uint32_t value, const char *tag);
+int nft_buf_u64(struct nft_buf *b, int type, uint64_t value, const char *tag);
+int nft_buf_str(struct nft_buf *b, int type, const char *str, const char *tag);
+int nft_buf_reg(struct nft_buf *b, int type, union nft_data_reg *reg,
+		int reg_type, const char *tag);
+
+#define BASE			"base"
+#define BYTES			"bytes"
+#define CHAIN			"chain"
+#define CODE			"code"
+#define DATA			"data"
+#define DIR			"dir"
+#define DREG			"dreg"
+#define EXTHDR_TYPE		"exthdr_type"
+#define FAMILY			"family"
+#define FLAGS			"flags"
+#define GROUP			"group"
+#define HANDLE			"handle"
+#define HOOKNUM			"hooknum"
+#define KEY			"key"
+#define LEN			"len"
+#define LEVEL			"level"
+#define MASK			"mask"
+#define NAT_TYPE		"nat_type"
+#define NAME			"name"
+#define NUM			"num"
+#define OFFSET			"offset"
+#define OP			"op"
+#define PACKETS			"packets"
+#define PKTS			"pkts"
+#define POLICY			"policy"
+#define PREFIX			"prefix"
+#define PRIO			"prio"
+#define QTHRESH			"qthreshold"
+#define RATE			"rate"
+#define SET			"set"
+#define SIZE			"size"
+#define SNAPLEN			"snaplen"
+#define SREG_ADDR_MAX		"sreg_addr_max"
+#define SREG_ADDR_MIN		"sreg_addr_min"
+#define SREG_PROTO_MAX		"sreg_proto_max"
+#define SREG_PROTO_MIN		"sreg_proto_min"
+#define SREG			"sreg"
+#define TABLE			"table"
+#define TOTAL			"total"
+#define TYPE			"type"
+#define UNIT			"unit"
+#define USE			"use"
+#define XOR			"xor"
+
+#endif