Add a DSCP value with getter/setter on packet_t

src/libipsec/esp_packet.c

@@ -97,6 +97,18 @@ METHOD(packet_t, set_data, void,
 	return this->packet->set_data(this->packet, data);
 }
 
+METHOD(packet_t, get_dscp, u_int8_t,
+	private_esp_packet_t *this)
+{
+	return this->packet->get_dscp(this->packet);
+}
+
+METHOD(packet_t, set_dscp, void,
+	private_esp_packet_t *this, u_int8_t value)
+{
+	this->packet->set_dscp(this->packet, value);
+}
+
 METHOD(packet_t, skip_bytes, void,
 	private_esp_packet_t *this, size_t bytes)
 {
@@ -411,6 +423,8 @@ static private_esp_packet_t *esp_packet_create_internal(packet_t *packet)
 				.get_destination = _get_destination,
 				.get_data = _get_data,
 				.set_data = _set_data,
+				.get_dscp = _get_dscp,
+				.set_dscp = _set_dscp,
 				.skip_bytes = _skip_bytes,
 				.clone = _clone,
 				.destroy = _destroy,

src/libstrongswan/networking/packet.c

@@ -39,6 +39,11 @@ struct private_packet_t {
 	 */
 	host_t *destination;
 
+	/**
+	 * DSCP value on packet
+	 */
+	u_int8_t dscp;
+
 	 /**
 	  * message data
 	  */
@@ -89,6 +94,17 @@ METHOD(packet_t, set_data, void,
 	this->adjusted_data = this->data = data;
 }
 
+METHOD(packet_t, get_dscp, u_int8_t,
+	private_packet_t *this)
+{
+	return this->dscp;
+}
+METHOD(packet_t, set_dscp, void,
+	private_packet_t *this, u_int8_t value)
+{
+	this->dscp = value;
+}
+
 METHOD(packet_t, skip_bytes, void,
 	private_packet_t *this, size_t bytes)
 {
@@ -123,6 +139,7 @@ METHOD(packet_t, clone_, packet_t*,
 	{
 		other->set_data(other, chunk_clone(this->adjusted_data));
 	}
+	other->set_dscp(other, this->dscp);
 	return other;
 }
 
@@ -141,6 +158,8 @@ packet_t *packet_create_from_data(host_t *src, host_t *dst, chunk_t data)
 			.get_source = _get_source,
 			.set_destination = _set_destination,
 			.get_destination = _get_destination,
+			.get_dscp = _get_dscp,
+			.set_dscp = _set_dscp,
 			.skip_bytes = _skip_bytes,
 			.clone = _clone_,
 			.destroy = _destroy,

src/libstrongswan/networking/packet.h

@@ -75,6 +75,20 @@ struct packet_t {
 	 */
 	void (*set_data)(packet_t *packet, chunk_t data);
 
+	/**
+	 * Get the DiffServ Code Point set on this packet.
+	 *
+	 * @return			DSCP value
+	 */
+	u_int8_t (*get_dscp)(packet_t *this);
+
+	/**
+	 * Set the DiffServ Code Point to use on this packet.
+	 *
+	 * @param value		DSCP value
+	 */
+	void (*set_dscp)(packet_t *this, u_int8_t value);
+
 	/**
 	 * Increase the offset where the actual packet data starts.
 	 *