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8acefc79de
The abstract socket namespace is a non-portable Linux extension. An
attempt to use it elsewhere should fail with ENOENT (the abstract
address looks like a "" pathname, which does not resolve). We report
this failure like
Failed to connect socket abc: No such file or directory
Tolerable, although ENOTSUP would be better.
However, introspection lies: it has @abstract regardless of host
support. Easy enough to fix: since Linux provides them since 2.2,
'if': 'defined(CONFIG_LINUX)' should do.
The above failure becomes
Parameter 'backend.data.addr.data.abstract' is unexpected
I consider this an improvement.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
168 lines
4.0 KiB
Python
168 lines
4.0 KiB
Python
# -*- Mode: Python -*-
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# vim: filetype=python
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##
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# = Socket data types
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##
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{ 'include': 'common.json' }
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##
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# @NetworkAddressFamily:
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#
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# The network address family
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#
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# @ipv4: IPV4 family
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#
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# @ipv6: IPV6 family
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#
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# @unix: unix socket
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#
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# @vsock: vsock family (since 2.8)
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#
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# @unknown: otherwise
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#
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# Since: 2.1
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##
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{ 'enum': 'NetworkAddressFamily',
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'data': [ 'ipv4', 'ipv6', 'unix', 'vsock', 'unknown' ] }
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##
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# @InetSocketAddressBase:
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#
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# @host: host part of the address
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# @port: port part of the address
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##
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{ 'struct': 'InetSocketAddressBase',
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'data': {
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'host': 'str',
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'port': 'str' } }
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##
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# @InetSocketAddress:
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#
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# Captures a socket address or address range in the Internet namespace.
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#
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# @numeric: true if the host/port are guaranteed to be numeric,
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# false if name resolution should be attempted. Defaults to false.
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# (Since 2.9)
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#
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# @to: If present, this is range of possible addresses, with port
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# between @port and @to.
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#
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# @ipv4: whether to accept IPv4 addresses, default try both IPv4 and IPv6
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#
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# @ipv6: whether to accept IPv6 addresses, default try both IPv4 and IPv6
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#
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# @keep-alive: enable keep-alive when connecting to this socket. Not supported
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# for passive sockets. (Since 4.2)
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#
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# Since: 1.3
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##
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{ 'struct': 'InetSocketAddress',
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'base': 'InetSocketAddressBase',
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'data': {
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'*numeric': 'bool',
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'*to': 'uint16',
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'*ipv4': 'bool',
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'*ipv6': 'bool',
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'*keep-alive': 'bool' } }
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##
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# @UnixSocketAddress:
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#
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# Captures a socket address in the local ("Unix socket") namespace.
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#
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# @path: filesystem path to use
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# @abstract: if true, this is a Linux abstract socket address. @path
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# will be prefixed by a null byte, and optionally padded
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# with null bytes. Defaults to false. (Since 5.1)
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# @tight: if false, pad an abstract socket address with enough null
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# bytes to make it fill struct sockaddr_un member sun_path.
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# Defaults to true. (Since 5.1)
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#
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# Since: 1.3
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##
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{ 'struct': 'UnixSocketAddress',
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'data': {
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'path': 'str',
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'*abstract': { 'type': 'bool', 'if': 'defined(CONFIG_LINUX)' },
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'*tight': { 'type': 'bool', 'if': 'defined(CONFIG_LINUX)' } } }
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##
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# @VsockSocketAddress:
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#
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# Captures a socket address in the vsock namespace.
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#
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# @cid: unique host identifier
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# @port: port
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#
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# Note: string types are used to allow for possible future hostname or
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# service resolution support.
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#
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# Since: 2.8
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##
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{ 'struct': 'VsockSocketAddress',
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'data': {
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'cid': 'str',
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'port': 'str' } }
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##
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# @SocketAddressLegacy:
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#
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# Captures the address of a socket, which could also be a named file descriptor
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#
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# Note: This type is deprecated in favor of SocketAddress. The
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# difference between SocketAddressLegacy and SocketAddress is that the
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# latter is a flat union rather than a simple union. Flat is nicer
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# because it avoids nesting on the wire, i.e. that form has fewer {}.
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#
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# Since: 1.3
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##
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{ 'union': 'SocketAddressLegacy',
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'data': {
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'inet': 'InetSocketAddress',
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'unix': 'UnixSocketAddress',
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'vsock': 'VsockSocketAddress',
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'fd': 'String' } }
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##
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# @SocketAddressType:
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#
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# Available SocketAddress types
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#
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# @inet: Internet address
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#
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# @unix: Unix domain socket
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#
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# @vsock: VMCI address
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#
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# @fd: decimal is for file descriptor number, otherwise a file descriptor name.
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# Named file descriptors are permitted in monitor commands, in combination
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# with the 'getfd' command. Decimal file descriptors are permitted at
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# startup or other contexts where no monitor context is active.
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#
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# Since: 2.9
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##
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{ 'enum': 'SocketAddressType',
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'data': [ 'inet', 'unix', 'vsock', 'fd' ] }
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##
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# @SocketAddress:
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#
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# Captures the address of a socket, which could also be a named file
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# descriptor
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#
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# @type: Transport type
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#
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# Since: 2.9
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##
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{ 'union': 'SocketAddress',
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'base': { 'type': 'SocketAddressType' },
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'discriminator': 'type',
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'data': { 'inet': 'InetSocketAddress',
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'unix': 'UnixSocketAddress',
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'vsock': 'VsockSocketAddress',
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'fd': 'String' } }
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