1 files changed, 69 insertions, 0 deletions
diff --git a/src/include/MESA/stream_inc/stream_rawpkt.h b/src/include/MESA/stream_inc/stream_rawpkt.h
new file mode 100644
index 0000000..bba9988
--- /dev/null
+++ b/src/include/MESA/stream_inc/stream_rawpkt.h
@@ -0,0 +1,69 @@
+#ifndef _APP_STREAM_RAWPKT_H_
+#define _APP_STREAM_RAWPKT_H_ 
+
+enum{
+	RAW_PKT_GET_DATA	= 1,			//value type: void *, out_value should be void **
+	RAW_PKT_GET_RAW_PKT_TYPE,	//value type: enum addr_type_t in stream_base.h, out_value should be enum addr_type_t*
+	RAW_PKT_GET_TOT_LEN,			//value type: int , out_value should be int *
+	RAW_PKT_GET_TIMESTAMP,		//value type: struct timeval , out_value should be struct timeval *
+	RAW_PKT_GET_THIS_LAYER_HDR,	//value type: void *, out_value should be void **
+	RAW_PKT_GET_THIS_LAYER_REMAIN_LEN, //value type: int , out_value should be int *
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+for example:
+	��ȡԭʼ���ܳ���:
+	int tot_len;
+	get_opt_from_rawpkt(voidpkt, RAW_PKT_GET_TOT_LEN, &tot_len);
+	 
+	��ȡ�����ͷ��ʼ��ַ:
+	void *this_layer_hdr;
+	get_opt_from_rawpkt(voidpkt, RAW_PKT_GET_THIS_LAYER_HDR, &this_layer_hdr); 
+
+	��ȡԭʼ��ʱ���:
+	struct timeval pkt_stamp;
+	get_opt_from_rawpkt(voidpkt, RAW_PKT_GET_TIMESTAMP, &pkt_stamp); 
+
+	return value:
+		0:success;
+		-1:error, or not support.
+*/
+int get_opt_from_rawpkt(const void *rawpkt, int type, void *out_value);
+
+
+/* 	��ȡ��������ԭʼ���ж�Ӧ��ͷ����ַ,
+	���豾��������ΪTCP, ���ô˺�����, �õ�ԭʼ���ж�Ӧ��TCPͷ����ַ.
+*/
+const void *get_this_layer_header(const struct streaminfo *pstream);
+
+/*
+	ԭʼ��ͷ��ƫ�ƺ���.
+
+	����:
+		raw_data: ��ǰ���ͷ��ָ��;
+		raw_layer_type: ��ǰ��ĵ�ַ����;
+		expect_layer_type: ������ת���ĵ�ַ����;
+
+	����ֵ:
+		NULL: �޴˵�ַ;
+		NON-NULL: ��Ӧ���ͷ����ַ.
+	
+
+	����:
+		���赱ǰ��ΪEthernet, ��ʼ��ͷ��ַΪthis_layer_hdr, ����ת��IPv6��ͷ��:
+		struct ip6_hdr *ip6_header;
+		ip6_header = MESA_net_jump_to_layer(this_layer_hdr, ADDR_TYPE_MAC, ADDR_TYPE_IPV6);
+*/
+const void *MESA_net_jump_to_layer(const void *raw_data,  int raw_layer_type, int expect_layer_type);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+