display transmitted bytes per SA

src/charon/kernel/kernel_interface.c

@@ -103,6 +103,19 @@ static status_t update_sa(private_kernel_interface_t *this, u_int32_t spi,
 			new_src, new_dst, encap, new_encap);
 }
 
+/**
+ * Implementation of kernel_interface_t.query_sa
+ */
+static status_t query_sa(private_kernel_interface_t *this, host_t *src, host_t *dst,
+						 u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes)
+{
+	if (!this->ipsec)
+	{
+		return NOT_SUPPORTED;
+	}
+	return this->ipsec->query_sa(this->ipsec, src, dst, spi, protocol, bytes);
+}
+
 /**
  * Implementation of kernel_interface_t.del_sa
  */
@@ -387,6 +400,7 @@ kernel_interface_t *kernel_interface_create()
 	this->public.get_cpi = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,u_int16_t*))get_cpi;
 	this->public.add_sa  = (status_t(*)(kernel_interface_t *,host_t*,host_t*,u_int32_t,protocol_id_t,u_int32_t,u_int64_t,u_int64_t,u_int16_t,chunk_t,u_int16_t,chunk_t,ipsec_mode_t,u_int16_t,u_int16_t,bool,bool))add_sa;
 	this->public.update_sa = (status_t(*)(kernel_interface_t*,u_int32_t,protocol_id_t,u_int16_t,host_t*,host_t*,host_t*,host_t*,bool,bool))update_sa;
+	this->public.query_sa = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,protocol_id_t,u_int64_t*))query_sa;
 	this->public.del_sa = (status_t(*)(kernel_interface_t*,host_t*,host_t*,u_int32_t,protocol_id_t,u_int16_t))del_sa;
 	this->public.add_policy = (status_t(*)(kernel_interface_t*,host_t*,host_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t,protocol_id_t,u_int32_t,ipsec_mode_t,u_int16_t,u_int16_t,bool))add_policy;
 	this->public.query_policy = (status_t(*)(kernel_interface_t*,traffic_selector_t*,traffic_selector_t*,policy_dir_t,u_int32_t*))query_policy;

src/charon/kernel/kernel_interface.h

@@ -140,6 +140,19 @@ struct kernel_interface_t {
 						  host_t *new_src, host_t *new_dst,
 						  bool encap, bool new_encap);
 	
+	/**
+	 * Query the number of bytes processed by an SA from the SAD.
+	 * 
+	 * @param src			source address for this SA
+	 * @param dst			destination address for this SA
+	 * @param spi			SPI allocated by us or remote peer
+	 * @param protocol		protocol for this SA (ESP/AH)
+	 * @param[out] bytes	the number of bytes processed by SA
+	 * @return				SUCCESS if operation completed
+	 */
+	status_t (*query_sa) (kernel_interface_t *this, host_t *src, host_t *dst,
+						  u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes);
+	
 	/**
 	 * Delete a previously installed SA from the SAD.
 	 * 

src/charon/kernel/kernel_ipsec.h

@@ -170,6 +170,19 @@ struct kernel_ipsec_t {
 						  host_t *new_src, host_t *new_dst,
 						  bool encap, bool new_encap);
 	
+	/**
+	 * Query the number of bytes processed by an SA from the SAD.
+	 * 
+	 * @param src			source address for this SA
+	 * @param dst			destination address for this SA
+	 * @param spi			SPI allocated by us or remote peer
+	 * @param protocol		protocol for this SA (ESP/AH)
+	 * @param[out] bytes	the number of bytes processed by SA
+	 * @return				SUCCESS if operation completed
+	 */
+	status_t (*query_sa) (kernel_ipsec_t *this, host_t *src, host_t *dst,
+						  u_int32_t spi, protocol_id_t protocol, u_int64_t *bytes);
+	
 	/**
 	 * Delete a previusly installed SA from the SAD.
 	 *