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/*
* Copyright (c) 2016 Cloudbase Solutions Srl
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ACTIONS_H_
#define __ACTIONS_H_ 1
#include "Switch.h"
#include "PacketIO.h"
/*
* There a lot of data that needs to be maintained while executing the pipeline
* as dictated by the actions of a flow, across different functions at different
* levels. Such data is put together in a 'context' structure. Care should be
* exercised while adding new members to the structure - only add ones that get
* used across multiple stages in the pipeline/get used in multiple functions.
*/
typedef struct OvsForwardingContext {
POVS_SWITCH_CONTEXT switchContext;
/* The NBL currently used in the pipeline. */
PNET_BUFFER_LIST curNbl;
/* NDIS forwarding detail for 'curNbl'. */
PNDIS_SWITCH_FORWARDING_DETAIL_NET_BUFFER_LIST_INFO fwdDetail;
/* Array of destination ports for 'curNbl'. */
PNDIS_SWITCH_FORWARDING_DESTINATION_ARRAY destinationPorts;
/* send flags while sending 'curNbl' into NDIS. */
ULONG sendFlags;
/* Total number of output ports, used + unused, in 'curNbl'. */
UINT32 destPortsSizeIn;
/* Total number of used output ports in 'curNbl'. */
UINT32 destPortsSizeOut;
/*
* If 'curNbl' is not owned by OVS, they need to be tracked, if they need to
* be freed/completed.
*/
OvsCompletionList *completionList;
/*
* vport number of 'curNbl' when it is passed from the PIF bridge to the INT
* bridge. ie. during tunneling on the Rx side.
*/
UINT32 srcVportNo;
/*
* Tunnel key:
* - specified in actions during tunneling Tx
* - extracted from an NBL during tunneling Rx
*/
OvsIPTunnelKey tunKey;
/*
* Tunneling - Tx:
* To store the output port, when it is a tunneled port. We don't foresee
* multiple tunneled ports as outport for any given NBL.
*/
POVS_VPORT_ENTRY tunnelTxNic;
/*
* Tunneling - Rx:
* Points to the Internal port on the PIF Bridge, if the packet needs to be
* de-tunneled.
*/
POVS_VPORT_ENTRY tunnelRxNic;
/* header information */
OVS_PACKET_HDR_INFO layers;
} OvsForwardingContext;
NDIS_STATUS
OvsActionsExecute(POVS_SWITCH_CONTEXT switchContext,
OvsCompletionList *completionList,
PNET_BUFFER_LIST curNbl,
UINT32 srcVportNo,
ULONG sendFlags,
OvsFlowKey *key,
UINT64 *hash,
OVS_PACKET_HDR_INFO *layers,
const PNL_ATTR actions,
int actionsLen);
NDIS_STATUS
OvsDoExecuteActions(POVS_SWITCH_CONTEXT switchContext,
OvsCompletionList *completionList,
PNET_BUFFER_LIST curNbl,
UINT32 srcVportNo,
ULONG sendFlags,
OvsFlowKey *key,
UINT64 *hash,
OVS_PACKET_HDR_INFO *layers,
const PNL_ATTR actions,
int actionsLen);
NDIS_STATUS
OvsDoRecirc(POVS_SWITCH_CONTEXT switchContext,
OvsCompletionList *completionList,
PNET_BUFFER_LIST curNbl,
OvsFlowKey *key,
UINT32 srcPortNo,
OVS_PACKET_HDR_INFO *layers);
PUINT8 OvsGetHeaderBySize(OvsForwardingContext *ovsFwdCtx,
UINT32 size);
NDIS_STATUS
OvsUpdateUdpPorts(OvsForwardingContext *ovsFwdCtx,
OvsFlowKey *key,
const struct ovs_key_udp *udpAttr);
NDIS_STATUS
OvsUpdateTcpPorts(OvsForwardingContext *ovsFwdCtx,
OvsFlowKey *key,
const struct ovs_key_tcp *tcpAttr);
NDIS_STATUS
OvsUpdateIPv4Header(OvsForwardingContext *ovsFwdCtx,
OvsFlowKey *key,
const struct ovs_key_ipv4 *ipAttr);
NDIS_STATUS
OvsUpdateAddressAndPort(OvsForwardingContext *ovsFwdCtx,
UINT32 newAddr, UINT16 newPort,
BOOLEAN isSource, BOOLEAN isTx);
NDIS_STATUS
OvsUpdateAddressAndPortForIpv6(OvsForwardingContext *ovsFwdCtx,
struct in6_addr newAddr, UINT16 newPort,
BOOLEAN isSource, BOOLEAN isTx);
#endif /* __ACTIONS_H_ */
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