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OvsDpInterfaceExt.h
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OvsDpInterfaceExt.h
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/*
* Copyright (c) 2014 VMware, Inc.
*
* 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 __OVS_DP_INTERFACE_EXT_H_
#define __OVS_DP_INTERFACE_EXT_H_ 1
/* Windows kernel datapath extensions to the standard datapath interface. */
/* Version number of the datapath interface extensions. */
#define OVS_DATAPATH_EXT_VERSION 1
/* Name of the device. */
#define OVS_DEVICE_NAME_NT L"\\Device\\OpenvSwitchDevice"
#define OVS_DEVICE_NAME_DOS L"\\DosDevices\\OpenvSwitchDevice"
#define OVS_DEVICE_NAME_USER TEXT("\\\\.\\OpenvSwitchDevice")
#define OVS_IOCTL_DEVICE_TYPE 45000
#define OVS_IOCTL_START 0x100
/* We used Direct I/O (zero copy) for the buffers. */
/* Non-Netlink-based IOCTLs. */
#define OVS_IOCTL_GET_PID \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x0, METHOD_BUFFERED,\
FILE_WRITE_ACCESS)
/* Netlink-based IOCTLs. */
#define OVS_IOCTL_READ \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x1, METHOD_OUT_DIRECT,\
FILE_READ_ACCESS)
#define OVS_IOCTL_READ_EVENT \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x2, METHOD_OUT_DIRECT, \
FILE_READ_ACCESS)
#define OVS_IOCTL_READ_PACKET \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x3, METHOD_OUT_DIRECT, \
FILE_READ_ACCESS)
#define OVS_IOCTL_WRITE \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x4, METHOD_IN_DIRECT,\
FILE_READ_ACCESS)
#define OVS_IOCTL_TRANSACT \
CTL_CODE (OVS_IOCTL_DEVICE_TYPE, OVS_IOCTL_START + 0x5, METHOD_OUT_DIRECT,\
FILE_WRITE_ACCESS)
/*
* On platforms that support netlink natively, the operating system assigns a
* dynamic value to a netlink family when it is registered. In the absense of
* such mechanism, defined hard-coded values that are known both to userspace
* and kernel.
*/
#define OVS_WIN_NL_INVALID_FAMILY_ID 0
#define OVS_WIN_NL_CTRL_FAMILY_ID (NLMSG_MIN_TYPE + 1)
#define OVS_WIN_NL_DATAPATH_FAMILY_ID (NLMSG_MIN_TYPE + 2)
#define OVS_WIN_NL_PACKET_FAMILY_ID (NLMSG_MIN_TYPE + 3)
#define OVS_WIN_NL_VPORT_FAMILY_ID (NLMSG_MIN_TYPE + 4)
#define OVS_WIN_NL_FLOW_FAMILY_ID (NLMSG_MIN_TYPE + 5)
#define OVS_WIN_NL_NETDEV_FAMILY_ID (NLMSG_MIN_TYPE + 6)
/*
* Conntrack Family is defined in OvsDpInterfaceCtExt.h
* OVS_WIN_NL_CT_FAMILY_ID is not used in the messages, but used internally
* in the kernel as a placeholder to enable parsing out the ct family cmds.
*/
#define OVS_WIN_NL_CT_FAMILY_ID (NLMSG_MIN_TYPE + 7)
#define OVS_WIN_NL_INVALID_MCGRP_ID 0
#define OVS_WIN_NL_MCGRP_START_ID 100
#define OVS_WIN_NL_VPORT_MCGRP_ID (OVS_WIN_NL_MCGRP_START_ID + 1)
/*
* Define a family of netlink command specific to Windows. This is part of the
* extensions.
*/
#define OVS_WIN_CONTROL_FAMILY "ovs_win_control"
#define OVS_WIN_CONTROL_MCGROUP "ovs_win_control"
#define OVS_WIN_CONTROL_VERSION 1
/* Commands available under the OVS_WIN_CONTROL_FAMILY. */
enum ovs_win_control_cmd {
OVS_CTRL_CMD_WIN_PEND_REQ,
OVS_CTRL_CMD_WIN_PEND_PACKET_REQ,
OVS_CTRL_CMD_MC_SUBSCRIBE_REQ,
OVS_CTRL_CMD_PACKET_SUBSCRIBE_REQ,
/* This command logically belongs to the Vport family */
OVS_CTRL_CMD_EVENT_NOTIFY,
OVS_CTRL_CMD_READ_NOTIFY,
/* Used for Socket property */
OVS_CTRL_CMD_SOCK_PROP
};
/* NL Attributes for joining/unjoining an MC group */
enum ovs_nl_mcast_attr {
OVS_NL_ATTR_MCAST_GRP, /* (UINT32) Join an MC group */
OVS_NL_ATTR_MCAST_JOIN, /* (UINT8) 1/0 - Join/Unjoin */
OVS_NL_ATTR_PACKET_SUBSCRIBE, /* (UNINT8): 1/0 - subscribe/unsubscribe */
OVS_NL_ATTR_PACKET_PID, /* (UNINT32) netlink PID to receive upcalls */
__OVS_NL_ATTR_CTRL_MAX
};
#define OVS_WIN_CONTROL_ATTR_MAX (__OVS_NL_ATTR_CTRL_MAX - 1)
/*
* Netdev family of commands specific to Windows.
*/
#define OVS_WIN_NETDEV_FAMILY "ovs_win_netdev"
#define OVS_WIN_NETDEV_MCGROUP "ovs_win_netdev"
#define OVS_WIN_NETDEV_VERSION 1
enum ovs_win_netdev_cmd {
OVS_WIN_NETDEV_CMD_UNSPEC,
OVS_WIN_NETDEV_CMD_GET, /* information about the netdev. */
};
/**
* For every vport on the datapath, there is a corresponding netdev. General
* network device attributes of a vport that are not specific to OVS, such as
* MTU are represented using a netdev. For convenience, some of the vport
* attributes are also included as netdev attributes.
*
* enum ovs_win_netdev_attr - attributes for %OVS_WIN_NETDEV_* commands.
* @OVS_WIN_NETDEV_ATTR_PORT_NO: 32-bit port number of the vport within the
* datapath.
* @OVS_WIN_NETDEV_ATTR_TYPE: 32-bit %OVS_VPORT_TYPE_* constant describing
* the type of vport.
* @OVS_WIN_NETDEV_ATTR_NAME: Name of vport. Maximum length %IFNAMSIZ-1 bytes
* plus a null terminator.
* @OVS_WIN_NETDEV_ATTR_MAC_ADDR: MAC address of the vport. %ETH_ADDR_LEN bytes
* long.
* @OVS_WIN_NETDEV_ATTR_MTU : 32-bit MTU of the vport.
* @OVS_WIN_NETDEV_ATTR_IF_FLAGS: 32-bit %OVS_WIN_NETDEV_IFF_* interface flags
* of the vport.
*
* These attributes follow the &struct ovs_header within the Generic Netlink
* payload for %OVS_WIN_NETDEV_* commands.
*
* For all requests, if %OVS_WIN_NETDEV_ATTR_NAME is specified then it is used
* to look up the netdev to operate on; dp_idx from the &struct
* ovs_header is not relevant for the look up.
*/
enum ovs_win_netdev_attr {
OVS_WIN_NETDEV_ATTR_UNSPEC,
OVS_WIN_NETDEV_ATTR_PORT_NO, /* u32 port number within datapath. */
OVS_WIN_NETDEV_ATTR_TYPE, /* u32 OVS_NETDEV_TYPE_* constant. */
OVS_WIN_NETDEV_ATTR_NAME, /* string name, up to IFNAMSIZ bytes long. */
OVS_WIN_NETDEV_ATTR_MAC_ADDR, /* MAC address of the vport. */
OVS_WIN_NETDEV_ATTR_MTU, /* MTU of the vport. */
OVS_WIN_NETDEV_ATTR_IF_FLAGS, /* Interface flags o the vport. */
__OVS_WIN_NETDEV_ATTR_MAX
};
#define OVS_WIN_NETDEV_ATTR_MAX (__OVS_WIN_NETDEV_ATTR_MAX - 1)
#define OVS_WIN_NETDEV_IFF_UP (1 << 0)
#define OVS_WIN_NETDEV_IFF_PROMISC (1 << 1)
typedef struct ovs_dp_stats OVS_DP_STATS;
typedef enum ovs_vport_type OVS_VPORT_TYPE;
/* NL Attributes for setting socket attributes */
enum ovs_nl_sock_attr {
/* (UINT32) Netlink Protocol set in Userspace and read in Kernel */
OVS_NL_ATTR_SOCK_PROTO,
/* (UINT32) Instance PID set in Kernel and read in Userspace */
OVS_NL_ATTR_SOCK_PID,
__OVS_NL_ATTR_SOCK_MAX
};
#define OVS_WIN_SOCK_ATTR_MAX (__OVS_NL_ATTR_SOCK_MAX - 1)
#endif /* __OVS_DP_INTERFACE_EXT_H_ */