xref: /openbmc/qemu/include/chardev/char-socket.h (revision 9c092804)
1 /*
2  * QEMU System Emulator
3  *
4  * Copyright (c) 2003-2008 Fabrice Bellard
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 #ifndef CHAR_SOCKET_H
26 #define CHAR_SOCKET_H
27 
28 #include "io/channel-socket.h"
29 #include "io/channel-tls.h"
30 #include "io/net-listener.h"
31 #include "chardev/char.h"
32 #include "qom/object.h"
33 
34 #define TCP_MAX_FDS 16
35 
36 typedef struct {
37     char buf[21];
38     size_t buflen;
39 } TCPChardevTelnetInit;
40 
41 typedef enum {
42     TCP_CHARDEV_STATE_DISCONNECTED,
43     TCP_CHARDEV_STATE_CONNECTING,
44     TCP_CHARDEV_STATE_CONNECTED,
45 } TCPChardevState;
46 
47 typedef ChardevClass SocketChardevClass;
48 
49 struct SocketChardev {
50     Chardev parent;
51     QIOChannel *ioc; /* Client I/O channel */
52     QIOChannelSocket *sioc; /* Client master channel */
53     QIONetListener *listener;
54     GSource *hup_source;
55     QCryptoTLSCreds *tls_creds;
56     char *tls_authz;
57     TCPChardevState state;
58     int max_size;
59     int do_telnetopt;
60     int do_nodelay;
61     int *read_msgfds;
62     size_t read_msgfds_num;
63     int *write_msgfds;
64     size_t write_msgfds_num;
65     bool registered_yank;
66 
67     SocketAddress *addr;
68     bool is_listen;
69     bool is_telnet;
70     bool is_tn3270;
71     GSource *telnet_source;
72     TCPChardevTelnetInit *telnet_init;
73 
74     bool is_websock;
75 
76     GSource *reconnect_timer;
77     int64_t reconnect_time;
78     bool connect_err_reported;
79 
80     QIOTask *connect_task;
81 };
82 typedef struct SocketChardev SocketChardev;
83 
84 DECLARE_INSTANCE_CHECKER(SocketChardev, SOCKET_CHARDEV,
85                          TYPE_CHARDEV_SOCKET)
86 
87 #endif /* CHAR_SOCKET_H */
88