xref: /openbmc/qemu/qapi/sockets.json (revision 4f8f199fa569492bb07efee02489f521629d275d)
1 # -*- Mode: Python -*-
2 # vim: filetype=python
3 
4 ##
5 # = Socket data types
6 ##
7 
8 ##
9 # @NetworkAddressFamily:
10 #
11 # The network address family
12 #
13 # @ipv4: IPV4 family
14 #
15 # @ipv6: IPV6 family
16 #
17 # @unix: unix socket
18 #
19 # @vsock: vsock family (since 2.8)
20 #
21 # @unknown: otherwise
22 #
23 # Since: 2.1
24 ##
25 { 'enum': 'NetworkAddressFamily',
26   'data': [ 'ipv4', 'ipv6', 'unix', 'vsock', 'unknown' ] }
27 
28 ##
29 # @InetSocketAddressBase:
30 #
31 # @host: host part of the address
32 # @port: port part of the address
33 ##
34 { 'struct': 'InetSocketAddressBase',
35   'data': {
36     'host': 'str',
37     'port': 'str' } }
38 
39 ##
40 # @InetSocketAddress:
41 #
42 # Captures a socket address or address range in the Internet
43 # namespace.
44 #
45 # @numeric: true if the host/port are guaranteed to be numeric, false
46 #     if name resolution should be attempted.  Defaults to false.
47 #     (Since 2.9)
48 #
49 # @to: If present, this is range of possible addresses, with port
50 #     between @port and @to.
51 #
52 # @ipv4: whether to accept IPv4 addresses, default try both IPv4 and
53 #     IPv6
54 #
55 # @ipv6: whether to accept IPv6 addresses, default try both IPv4 and
56 #     IPv6
57 #
58 # @keep-alive: enable keep-alive when connecting to this socket.  Not
59 #     supported for passive sockets.  (Since 4.2)
60 #
61 # @mptcp: enable multi-path TCP.  (Since 6.1)
62 #
63 # Since: 1.3
64 ##
65 { 'struct': 'InetSocketAddress',
66   'base': 'InetSocketAddressBase',
67   'data': {
68     '*numeric':  'bool',
69     '*to': 'uint16',
70     '*ipv4': 'bool',
71     '*ipv6': 'bool',
72     '*keep-alive': 'bool',
73     '*mptcp': { 'type': 'bool', 'if': 'HAVE_IPPROTO_MPTCP' } } }
74 
75 ##
76 # @UnixSocketAddress:
77 #
78 # Captures a socket address in the local ("Unix socket") namespace.
79 #
80 # @path: filesystem path to use
81 #
82 # @abstract: if true, this is a Linux abstract socket address.  @path
83 #     will be prefixed by a null byte, and optionally padded with null
84 #     bytes.  Defaults to false.  (Since 5.1)
85 #
86 # @tight: if false, pad an abstract socket address with enough null
87 #     bytes to make it fill struct sockaddr_un member sun_path.
88 #     Defaults to true.  (Since 5.1)
89 #
90 # Since: 1.3
91 ##
92 { 'struct': 'UnixSocketAddress',
93   'data': {
94     'path': 'str',
95     '*abstract': { 'type': 'bool', 'if': 'CONFIG_LINUX' },
96     '*tight': { 'type': 'bool', 'if': 'CONFIG_LINUX' } } }
97 
98 ##
99 # @VsockSocketAddress:
100 #
101 # Captures a socket address in the vsock namespace.
102 #
103 # @cid: unique host identifier
104 #
105 # @port: port
106 #
107 # Note: string types are used to allow for possible future hostname or
108 #     service resolution support.
109 #
110 # Since: 2.8
111 ##
112 { 'struct': 'VsockSocketAddress',
113   'data': {
114     'cid': 'str',
115     'port': 'str' } }
116 
117 ##
118 # @FdSocketAddress:
119 #
120 # A file descriptor name or number.
121 #
122 # @str: decimal is for file descriptor number, otherwise it's a file
123 #     descriptor name.  Named file descriptors are permitted in
124 #     monitor commands, in combination with the 'getfd' command.
125 #     Decimal file descriptors are permitted at startup or other
126 #     contexts where no monitor context is active.
127 #
128 # Since: 1.2
129 ##
130 { 'struct': 'FdSocketAddress',
131   'data': {
132     'str': 'str' } }
133 
134 ##
135 # @InetSocketAddressWrapper:
136 #
137 # @data: internet domain socket address
138 #
139 # Since: 1.3
140 ##
141 { 'struct': 'InetSocketAddressWrapper',
142   'data': { 'data': 'InetSocketAddress' } }
143 
144 ##
145 # @UnixSocketAddressWrapper:
146 #
147 # @data: UNIX domain socket address
148 #
149 # Since: 1.3
150 ##
151 { 'struct': 'UnixSocketAddressWrapper',
152   'data': { 'data': 'UnixSocketAddress' } }
153 
154 ##
155 # @VsockSocketAddressWrapper:
156 #
157 # @data: VSOCK domain socket address
158 #
159 # Since: 2.8
160 ##
161 { 'struct': 'VsockSocketAddressWrapper',
162   'data': { 'data': 'VsockSocketAddress' } }
163 
164 ##
165 # @FdSocketAddressWrapper:
166 #
167 # @data: file descriptor name or number
168 #
169 # Since: 1.3
170 ##
171 { 'struct': 'FdSocketAddressWrapper',
172   'data': { 'data': 'FdSocketAddress' } }
173 
174 ##
175 # @SocketAddressLegacy:
176 #
177 # Captures the address of a socket, which could also be a named file
178 # descriptor
179 #
180 # @type: Transport type
181 #
182 # Note: This type is deprecated in favor of SocketAddress.  The
183 #     difference between SocketAddressLegacy and SocketAddress is that
184 #     the latter has fewer {} on the wire.
185 #
186 # Since: 1.3
187 ##
188 { 'union': 'SocketAddressLegacy',
189   'base': { 'type': 'SocketAddressType' },
190   'discriminator': 'type',
191   'data': {
192     'inet': 'InetSocketAddressWrapper',
193     'unix': 'UnixSocketAddressWrapper',
194     'vsock': 'VsockSocketAddressWrapper',
195     'fd': 'FdSocketAddressWrapper' } }
196 
197 ##
198 # @SocketAddressType:
199 #
200 # Available SocketAddress types
201 #
202 # @inet: Internet address
203 #
204 # @unix: Unix domain socket
205 #
206 # @vsock: VMCI address
207 #
208 # @fd: Socket file descriptor
209 #
210 # Since: 2.9
211 ##
212 { 'enum': 'SocketAddressType',
213   'data': [ 'inet', 'unix', 'vsock', 'fd' ] }
214 
215 ##
216 # @SocketAddress:
217 #
218 # Captures the address of a socket, which could also be a socket file
219 # descriptor
220 #
221 # @type: Transport type
222 #
223 # Since: 2.9
224 ##
225 { 'union': 'SocketAddress',
226   'base': { 'type': 'SocketAddressType' },
227   'discriminator': 'type',
228   'data': { 'inet': 'InetSocketAddress',
229             'unix': 'UnixSocketAddress',
230             'vsock': 'VsockSocketAddress',
231             'fd': 'FdSocketAddress' } }
232