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qemu/qapi/net.json
Alexey Kirillov d32ad10a14 qapi: net: Add query-netdev command 
The query-netdev command is used to get the configuration of the current
network device backends (netdevs).
This is the QMP analog of the HMP command "info network" but only for
netdevs (i.e. excluding NIC and hubports).

The query-netdev command returns an array of objects of the NetdevInfo
type, which are an extension of Netdev type. It means that response can
be used for netdev-add after small modification. This can be useful for
recreate the same netdev configuration.

Information about the network device is filled in when it is created or
modified and is available through the NetClientState->stored_config.

Signed-off-by: Alexey Kirillov <lekiravi@yandex-team.ru>
Acked-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00

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# -*- Mode: Python -*-
# vim: filetype=python
#
##
# = Net devices
##
{ 'include': 'common.json' }
##
# @set_link:
#
# Sets the link status of a virtual network adapter.
#
# @name: the device name of the virtual network adapter
#
# @up: true to set the link status to be up
#
# Returns: Nothing on success
# If @name is not a valid network device, DeviceNotFound
#
# Since: 0.14
#
# Notes: Not all network adapters support setting link status. This command
# will succeed even if the network adapter does not support link status
# notification.
#
# Example:
#
# -> { "execute": "set_link",
# "arguments": { "name": "e1000.0", "up": false } }
# <- { "return": {} }
#
##
{ 'command': 'set_link', 'data': {'name': 'str', 'up': 'bool'} }
##
# @netdev_add:
#
# Add a network backend.
#
# Additional arguments depend on the type.
#
# Since: 0.14
#
# Returns: Nothing on success
# If @type is not a valid network backend, DeviceNotFound
#
# Example:
#
# -> { "execute": "netdev_add",
# "arguments": { "type": "user", "id": "netdev1",
# "dnssearch": "example.org" } }
# <- { "return": {} }
#
##
{ 'command': 'netdev_add', 'data': 'Netdev', 'boxed': true }
##
# @netdev_del:
#
# Remove a network backend.
#
# @id: the name of the network backend to remove
#
# Returns: Nothing on success
# If @id is not a valid network backend, DeviceNotFound
#
# Since: 0.14
#
# Example:
#
# -> { "execute": "netdev_del", "arguments": { "id": "netdev1" } }
# <- { "return": {} }
#
##
{ 'command': 'netdev_del', 'data': {'id': 'str'} }
##
# @NetLegacyNicOptions:
#
# Create a new Network Interface Card.
#
# @netdev: id of -netdev to connect to
#
# @macaddr: MAC address
#
# @model: device model (e1000, rtl8139, virtio etc.)
#
# @addr: PCI device address
#
# @vectors: number of MSI-x vectors, 0 to disable MSI-X
#
# Since: 1.2
##
{ 'struct': 'NetLegacyNicOptions',
'data': {
'*netdev': 'str',
'*macaddr': 'str',
'*model': 'str',
'*addr': 'str',
'*vectors': 'uint32' } }
##
# @NetdevUserOptions:
#
# Use the user mode network stack which requires no administrator privilege to
# run.
#
# @hostname: client hostname reported by the builtin DHCP server
#
# @restrict: isolate the guest from the host
#
# @ipv4: whether to support IPv4, default true for enabled
# (since 2.6)
#
# @ipv6: whether to support IPv6, default true for enabled
# (since 2.6)
#
# @ip: legacy parameter, use net= instead
#
# @net: IP network address that the guest will see, in the
# form addr[/netmask] The netmask is optional, and can be
# either in the form a.b.c.d or as a number of valid top-most
# bits. Default is 10.0.2.0/24.
#
# @host: guest-visible address of the host
#
# @tftp: root directory of the built-in TFTP server
#
# @bootfile: BOOTP filename, for use with tftp=
#
# @dhcpstart: the first of the 16 IPs the built-in DHCP server can
# assign
#
# @dns: guest-visible address of the virtual nameserver
#
# @dnssearch: list of DNS suffixes to search, passed as DHCP option
# to the guest
#
# @domainname: guest-visible domain name of the virtual nameserver
# (since 3.0)
#
# @ipv6-prefix: IPv6 network prefix (default is fec0::) (since
# 2.6). The network prefix is given in the usual
# hexadecimal IPv6 address notation.
#
# @ipv6-prefixlen: IPv6 network prefix length (default is 64)
# (since 2.6)
#
# @ipv6-host: guest-visible IPv6 address of the host (since 2.6)
#
# @ipv6-dns: guest-visible IPv6 address of the virtual
# nameserver (since 2.6)
#
# @smb: root directory of the built-in SMB server
#
# @smbserver: IP address of the built-in SMB server
#
# @hostfwd: redirect incoming TCP or UDP host connections to guest
# endpoints
#
# @guestfwd: forward guest TCP connections
#
# @tftp-server-name: RFC2132 "TFTP server name" string (Since 3.1)
#
# Since: 1.2
##
{ 'struct': 'NetdevUserOptions',
'data': {
'*hostname': 'str',
'*restrict': 'bool',
'*ipv4': 'bool',
'*ipv6': 'bool',
'*ip': 'str',
'*net': 'str',
'*host': 'str',
'*tftp': 'str',
'*bootfile': 'str',
'*dhcpstart': 'str',
'*dns': 'str',
'*dnssearch': ['String'],
'*domainname': 'str',
'*ipv6-prefix': 'str',
'*ipv6-prefixlen': 'int',
'*ipv6-host': 'str',
'*ipv6-dns': 'str',
'*smb': 'str',
'*smbserver': 'str',
'*hostfwd': ['String'],
'*guestfwd': ['String'],
'*tftp-server-name': 'str' } }
##
# @NetdevTapOptions:
#
# Used to configure a host TAP network interface backend.
#
# @ifname: interface name
#
# @fd: file descriptor of an already opened tap
#
# @fds: multiple file descriptors of already opened multiqueue capable
# tap
#
# @script: script to initialize the interface
#
# @downscript: script to shut down the interface
#
# @br: bridge name (since 2.8)
#
# @helper: command to execute to configure bridge
#
# @sndbuf: send buffer limit. Understands [TGMKkb] suffixes.
#
# @vnet_hdr: enable the IFF_VNET_HDR flag on the tap interface
#
# @vhost: enable vhost-net network accelerator
#
# @vhostfd: file descriptor of an already opened vhost net device
#
# @vhostfds: file descriptors of multiple already opened vhost net
# devices
#
# @vhostforce: vhost on for non-MSIX virtio guests
#
# @queues: number of queues to be created for multiqueue capable tap
#
# @poll-us: maximum number of microseconds that could
# be spent on busy polling for tap (since 2.7)
#
# Since: 1.2
##
{ 'struct': 'NetdevTapOptions',
'data': {
'*ifname': 'str',
'*fd': 'str',
'*fds': 'str',
'*script': 'str',
'*downscript': 'str',
'*br': 'str',
'*helper': 'str',
'*sndbuf': 'size',
'*vnet_hdr': 'bool',
'*vhost': 'bool',
'*vhostfd': 'str',
'*vhostfds': 'str',
'*vhostforce': 'bool',
'*queues': 'uint32',
'*poll-us': 'uint32'} }
##
# @NetdevSocketOptions:
#
# Socket netdevs are used to establish a network connection to another
# QEMU virtual machine via a TCP socket.
#
# @fd: file descriptor of an already opened socket
#
# @listen: port number, and optional hostname, to listen on
#
# @connect: port number, and optional hostname, to connect to
#
# @mcast: UDP multicast address and port number
#
# @localaddr: source address and port for multicast and udp packets
#
# @udp: UDP unicast address and port number
#
# Since: 1.2
##
{ 'struct': 'NetdevSocketOptions',
'data': {
'*fd': 'str',
'*listen': 'str',
'*connect': 'str',
'*mcast': 'str',
'*localaddr': 'str',
'*udp': 'str' } }
##
# @NetdevL2TPv3Options:
#
# Configure an Ethernet over L2TPv3 tunnel.
#
# @src: source address
#
# @dst: destination address
#
# @srcport: source port - mandatory for udp, optional for ip
#
# @dstport: destination port - mandatory for udp, optional for ip
#
# @ipv6: force the use of ipv6
#
# @udp: use the udp version of l2tpv3 encapsulation
#
# @cookie64: use 64 bit coookies
#
# @counter: have sequence counter
#
# @pincounter: pin sequence counter to zero -
# workaround for buggy implementations or
# networks with packet reorder
#
# @txcookie: 32 or 64 bit transmit cookie
#
# @rxcookie: 32 or 64 bit receive cookie
#
# @txsession: 32 bit transmit session
#
# @rxsession: 32 bit receive session - if not specified
# set to the same value as transmit
#
# @offset: additional offset - allows the insertion of
# additional application-specific data before the packet payload
#
# Since: 2.1
##
{ 'struct': 'NetdevL2TPv3Options',
'data': {
'src': 'str',
'dst': 'str',
'*srcport': 'str',
'*dstport': 'str',
'*ipv6': 'bool',
'*udp': 'bool',
'*cookie64': 'bool',
'*counter': 'bool',
'*pincounter': 'bool',
'*txcookie': 'uint64',
'*rxcookie': 'uint64',
'txsession': 'uint32',
'*rxsession': 'uint32',
'*offset': 'uint32' } }
##
# @NetdevVdeOptions:
#
# Connect to a vde switch running on the host.
#
# @sock: socket path
#
# @port: port number
#
# @group: group owner of socket
#
# @mode: permissions for socket
#
# Since: 1.2
##
{ 'struct': 'NetdevVdeOptions',
'data': {
'*sock': 'str',
'*port': 'uint16',
'*group': 'str',
'*mode': 'uint16' } }
##
# @NetdevBridgeOptions:
#
# Connect a host TAP network interface to a host bridge device.
#
# @br: bridge name
#
# @helper: command to execute to configure bridge
#
# Since: 1.2
##
{ 'struct': 'NetdevBridgeOptions',
'data': {
'*br': 'str',
'*helper': 'str' } }
##
# @NetdevHubPortOptions:
#
# Connect two or more net clients through a software hub.
#
# @hubid: hub identifier number
# @netdev: used to connect hub to a netdev instead of a device (since 2.12)
#
# Since: 1.2
##
{ 'struct': 'NetdevHubPortOptions',
'data': {
'hubid': 'int32',
'*netdev': 'str' } }
##
# @NetdevNetmapOptions:
#
# Connect a client to a netmap-enabled NIC or to a VALE switch port
#
# @ifname: Either the name of an existing network interface supported by
# netmap, or the name of a VALE port (created on the fly).
# A VALE port name is in the form 'valeXXX:YYY', where XXX and
# YYY are non-negative integers. XXX identifies a switch and
# YYY identifies a port of the switch. VALE ports having the
# same XXX are therefore connected to the same switch.
#
# @devname: path of the netmap device (default: '/dev/netmap').
#
# Since: 2.0
##
{ 'struct': 'NetdevNetmapOptions',
'data': {
'ifname': 'str',
'*devname': 'str' } }
##
# @NetdevVhostUserOptions:
#
# Vhost-user network backend
#
# @chardev: name of a unix socket chardev
#
# @vhostforce: vhost on for non-MSIX virtio guests (default: false).
#
# @queues: number of queues to be created for multiqueue vhost-user
# (default: 1) (Since 2.5)
#
# Since: 2.1
##
{ 'struct': 'NetdevVhostUserOptions',
'data': {
'chardev': 'str',
'*vhostforce': 'bool',
'*queues': 'int' } }
##
# @NetdevVhostVDPAOptions:
#
# Vhost-vdpa network backend
#
# vDPA device is a device that uses a datapath which complies with the virtio
# specifications with a vendor specific control path.
#
# @vhostdev: path of vhost-vdpa device
# (default:'/dev/vhost-vdpa-0')
#
# @queues: number of queues to be created for multiqueue vhost-vdpa
# (default: 1)
#
# Since: 5.1
##
{ 'struct': 'NetdevVhostVDPAOptions',
'data': {
'*vhostdev': 'str',
'*queues': 'int' } }
##
# @NetClientDriver:
#
# Available netdev drivers.
#
# Since: 2.7
#
# @vhost-vdpa since 5.1
##
{ 'enum': 'NetClientDriver',
'data': [ 'none', 'nic', 'user', 'tap', 'l2tpv3', 'socket', 'vde',
'bridge', 'hubport', 'netmap', 'vhost-user', 'vhost-vdpa' ] }
##
# @Netdev:
#
# Captures the configuration of a network device.
#
# @id: identifier for monitor commands.
#
# @type: Specify the driver used for interpreting remaining arguments.
#
# Since: 1.2
#
# 'l2tpv3' - since 2.1
##
{ 'union': 'Netdev',
'base': { 'id': 'str', 'type': 'NetClientDriver' },
'discriminator': 'type',
'data': {
'nic': 'NetLegacyNicOptions',
'user': 'NetdevUserOptions',
'tap': 'NetdevTapOptions',
'l2tpv3': 'NetdevL2TPv3Options',
'socket': 'NetdevSocketOptions',
'vde': 'NetdevVdeOptions',
'bridge': 'NetdevBridgeOptions',
'hubport': 'NetdevHubPortOptions',
'netmap': 'NetdevNetmapOptions',
'vhost-user': 'NetdevVhostUserOptions',
'vhost-vdpa': 'NetdevVhostVDPAOptions' } }
##
# @NetFilterDirection:
#
# Indicates whether a netfilter is attached to a netdev's transmit queue or
# receive queue or both.
#
# @all: the filter is attached both to the receive and the transmit
# queue of the netdev (default).
#
# @rx: the filter is attached to the receive queue of the netdev,
# where it will receive packets sent to the netdev.
#
# @tx: the filter is attached to the transmit queue of the netdev,
# where it will receive packets sent by the netdev.
#
# Since: 2.5
##
{ 'enum': 'NetFilterDirection',
'data': [ 'all', 'rx', 'tx' ] }
##
# @RxState:
#
# Packets receiving state
#
# @normal: filter assigned packets according to the mac-table
#
# @none: don't receive any assigned packet
#
# @all: receive all assigned packets
#
# Since: 1.6
##
{ 'enum': 'RxState', 'data': [ 'normal', 'none', 'all' ] }
##
# @RxFilterInfo:
#
# Rx-filter information for a NIC.
#
# @name: net client name
#
# @promiscuous: whether promiscuous mode is enabled
#
# @multicast: multicast receive state
#
# @unicast: unicast receive state
#
# @vlan: vlan receive state (Since 2.0)
#
# @broadcast-allowed: whether to receive broadcast
#
# @multicast-overflow: multicast table is overflowed or not
#
# @unicast-overflow: unicast table is overflowed or not
#
# @main-mac: the main macaddr string
#
# @vlan-table: a list of active vlan id
#
# @unicast-table: a list of unicast macaddr string
#
# @multicast-table: a list of multicast macaddr string
#
# Since: 1.6
##
{ 'struct': 'RxFilterInfo',
'data': {
'name': 'str',
'promiscuous': 'bool',
'multicast': 'RxState',
'unicast': 'RxState',
'vlan': 'RxState',
'broadcast-allowed': 'bool',
'multicast-overflow': 'bool',
'unicast-overflow': 'bool',
'main-mac': 'str',
'vlan-table': ['int'],
'unicast-table': ['str'],
'multicast-table': ['str'] }}
##
# @query-rx-filter:
#
# Return rx-filter information for all NICs (or for the given NIC).
#
# @name: net client name
#
# Returns: list of @RxFilterInfo for all NICs (or for the given NIC).
# Returns an error if the given @name doesn't exist, or given
# NIC doesn't support rx-filter querying, or given net client
# isn't a NIC.
#
# Since: 1.6
#
# Example:
#
# -> { "execute": "query-rx-filter", "arguments": { "name": "vnet0" } }
# <- { "return": [
# {
# "promiscuous": true,
# "name": "vnet0",
# "main-mac": "52:54:00:12:34:56",
# "unicast": "normal",
# "vlan": "normal",
# "vlan-table": [
# 4,
# 0
# ],
# "unicast-table": [
# ],
# "multicast": "normal",
# "multicast-overflow": false,
# "unicast-overflow": false,
# "multicast-table": [
# "01:00:5e:00:00:01",
# "33:33:00:00:00:01",
# "33:33:ff:12:34:56"
# ],
# "broadcast-allowed": false
# }
# ]
# }
#
##
{ 'command': 'query-rx-filter',
'data': { '*name': 'str' },
'returns': ['RxFilterInfo'] }
##
# @NIC_RX_FILTER_CHANGED:
#
# Emitted once until the 'query-rx-filter' command is executed, the first event
# will always be emitted
#
# @name: net client name
#
# @path: device path
#
# Since: 1.6
#
# Example:
#
# <- { "event": "NIC_RX_FILTER_CHANGED",
# "data": { "name": "vnet0",
# "path": "/machine/peripheral/vnet0/virtio-backend" },
# "timestamp": { "seconds": 1368697518, "microseconds": 326866 } }
# }
#
##
{ 'event': 'NIC_RX_FILTER_CHANGED',
'data': { '*name': 'str', 'path': 'str' } }
##
# @AnnounceParameters:
#
# Parameters for self-announce timers
#
# @initial: Initial delay (in ms) before sending the first GARP/RARP
# announcement
#
# @max: Maximum delay (in ms) between GARP/RARP announcement packets
#
# @rounds: Number of self-announcement attempts
#
# @step: Delay increase (in ms) after each self-announcement attempt
#
# @interfaces: An optional list of interface names, which restricts the
# announcement to the listed interfaces. (Since 4.1)
#
# @id: A name to be used to identify an instance of announce-timers
# and to allow it to modified later. Not for use as
# part of the migration parameters. (Since 4.1)
#
# Since: 4.0
##
{ 'struct': 'AnnounceParameters',
'data': { 'initial': 'int',
'max': 'int',
'rounds': 'int',
'step': 'int',
'*interfaces': ['str'],
'*id' : 'str' } }
##
# @announce-self:
#
# Trigger generation of broadcast RARP frames to update network switches.
# This can be useful when network bonds fail-over the active slave.
#
# Example:
#
# -> { "execute": "announce-self",
# "arguments": {
# "initial": 50, "max": 550, "rounds": 10, "step": 50,
# "interfaces": ["vn2", "vn3"], "id": "bob" } }
# <- { "return": {} }
#
# Since: 4.0
##
{ 'command': 'announce-self', 'boxed': true,
'data' : 'AnnounceParameters'}
##
# @FAILOVER_NEGOTIATED:
#
# Emitted when VIRTIO_NET_F_STANDBY was enabled during feature negotiation.
# Failover primary devices which were hidden (not hotplugged when requested)
# before will now be hotplugged by the virtio-net standby device.
#
# device-id: QEMU device id of the unplugged device
# Since: 4.2
#
# Example:
#
# <- { "event": "FAILOVER_NEGOTIATED",
# "data": "net1" }
#
##
{ 'event': 'FAILOVER_NEGOTIATED',
'data': {'device-id': 'str'} }
##
# @NetBackend:
#
# Available netdev backend drivers.
#
# Since: 6.0
##
{ 'enum': 'NetBackend',
'data': [ 'bridge', 'l2tpv3', 'netmap', 'socket', 'tap', 'user', 'vde',
'vhost-user', 'vhost-vdpa' ] }
##
# @NetdevInfo:
#
# Configuration of a network backend device (netdev).
#
# @id: Device identifier.
#
# @type: Specify the driver used for interpreting remaining arguments.
#
# @peer-id: The connected frontend network device name (absent if no frontend
# is connected).
#
# Since: 6.0
##
{ 'union': 'NetdevInfo',
'base': { 'id': 'str',
'type': 'NetBackend',
'*peer-id': 'str' },
'discriminator': 'type',
'data': {
'bridge': 'NetdevBridgeOptions',
'l2tpv3': 'NetdevL2TPv3Options',
'netmap': 'NetdevNetmapOptions',
'socket': 'NetdevSocketOptions',
'tap': 'NetdevTapOptions',
'user': 'NetdevUserOptions',
'vde': 'NetdevVdeOptions',
'vhost-user': 'NetdevVhostUserOptions',
'vhost-vdpa': 'NetdevVhostVDPAOptions' } }
##
# @query-netdev:
#
# Get a list of @NetdevInfo for all virtual network backend devices (netdevs).
#
# Returns: a list of @NetdevInfo describing each netdev.
#
# Since: 6.0
#
# Example:
#
# -> { "execute": "query-netdev" }
# <- { "return": [
# {
# "ipv6": true,
# "ipv4": true,
# "host": "10.0.2.2",
# "ipv6-dns": "fec0::3",
# "ipv6-prefix": "fec0::",
# "net": "10.0.2.0/255.255.255.0",
# "ipv6-host": "fec0::2",
# "type": "user",
# "peer-id": "net0",
# "dns": "10.0.2.3",
# "hostfwd": [
# {
# "str": "tcp::20004-:22"
# }
# ],
# "ipv6-prefixlen": 64,
# "id": "netdev0",
# "restrict": false
# }
# ]
# }
#
##
{ 'command': 'query-netdev', 'returns': ['NetdevInfo'] }
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