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Commit | Line | Data |
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7536ee4b TH |
1 | /* |
2 | * QEMU VNC display driver: Websockets support | |
3 | * | |
4 | * Copyright (C) 2010 Joel Martin | |
5 | * Copyright (C) 2012 Tim Hardeck | |
6 | * | |
7 | * This is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This software is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this software; if not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
e16f4c87 | 21 | #include "qemu/osdep.h" |
da34e65c | 22 | #include "qapi/error.h" |
7536ee4b | 23 | #include "vnc.h" |
d5f04223 | 24 | #include "io/channel-websock.h" |
58369e22 | 25 | #include "qemu/bswap.h" |
ad6374c4 | 26 | #include "trace.h" |
0057a0d5 | 27 | |
60e705c5 | 28 | static void vncws_tls_handshake_done(QIOTask *task, |
2cc45228 DB |
29 | gpointer user_data) |
30 | { | |
31 | VncState *vs = user_data; | |
60e705c5 | 32 | Error *err = NULL; |
4a48aaa9 | 33 | |
60e705c5 | 34 | if (qio_task_propagate_error(task, &err)) { |
2cc45228 DB |
35 | VNC_DEBUG("Handshake failed %s\n", error_get_pretty(err)); |
36 | vnc_client_error(vs); | |
60e705c5 | 37 | error_free(err); |
2cc45228 | 38 | } else { |
d5f04223 | 39 | VNC_DEBUG("TLS handshake complete, starting websocket handshake\n"); |
a75d6f07 BC |
40 | if (vs->ioc_tag) { |
41 | g_source_remove(vs->ioc_tag); | |
42 | } | |
04d2529d | 43 | vs->ioc_tag = qio_channel_add_watch( |
2ddafce7 DH |
44 | QIO_CHANNEL(vs->ioc), G_IO_IN | G_IO_HUP | G_IO_ERR, |
45 | vncws_handshake_io, vs, NULL); | |
3e305e4a | 46 | } |
0057a0d5 TH |
47 | } |
48 | ||
2cc45228 | 49 | |
04d2529d | 50 | gboolean vncws_tls_handshake_io(QIOChannel *ioc G_GNUC_UNUSED, |
2ddafce7 | 51 | GIOCondition condition, |
04d2529d | 52 | void *opaque) |
0057a0d5 | 53 | { |
2cc45228 DB |
54 | VncState *vs = opaque; |
55 | QIOChannelTLS *tls; | |
3e305e4a | 56 | Error *err = NULL; |
0057a0d5 | 57 | |
2cc45228 DB |
58 | if (vs->ioc_tag) { |
59 | g_source_remove(vs->ioc_tag); | |
60 | vs->ioc_tag = 0; | |
61 | } | |
62 | ||
2ddafce7 DH |
63 | if (condition & (G_IO_HUP | G_IO_ERR)) { |
64 | vnc_client_error(vs); | |
65 | return TRUE; | |
66 | } | |
67 | ||
2cc45228 DB |
68 | tls = qio_channel_tls_new_server( |
69 | vs->ioc, | |
70 | vs->vd->tlscreds, | |
b76806d4 | 71 | vs->vd->tlsauthzid, |
2cc45228 DB |
72 | &err); |
73 | if (!tls) { | |
74 | VNC_DEBUG("Failed to setup TLS %s\n", error_get_pretty(err)); | |
3e305e4a DB |
75 | error_free(err); |
76 | vnc_client_error(vs); | |
04d2529d | 77 | return TRUE; |
0057a0d5 | 78 | } |
3e305e4a | 79 | |
10bcfe58 DB |
80 | qio_channel_set_name(QIO_CHANNEL(tls), "vnc-ws-server-tls"); |
81 | ||
2cc45228 DB |
82 | object_unref(OBJECT(vs->ioc)); |
83 | vs->ioc = QIO_CHANNEL(tls); | |
ad6374c4 | 84 | trace_vnc_client_io_wrap(vs, vs->ioc, "tls"); |
2cc45228 DB |
85 | vs->tls = qio_channel_tls_get_session(tls); |
86 | ||
87 | qio_channel_tls_handshake(tls, | |
88 | vncws_tls_handshake_done, | |
89 | vs, | |
1939ccda | 90 | NULL, |
2cc45228 DB |
91 | NULL); |
92 | ||
04d2529d | 93 | return TRUE; |
0057a0d5 | 94 | } |
0057a0d5 | 95 | |
7536ee4b | 96 | |
60e705c5 | 97 | static void vncws_handshake_done(QIOTask *task, |
d5f04223 DB |
98 | gpointer user_data) |
99 | { | |
100 | VncState *vs = user_data; | |
60e705c5 | 101 | Error *err = NULL; |
7536ee4b | 102 | |
60e705c5 | 103 | if (qio_task_propagate_error(task, &err)) { |
d5f04223 DB |
104 | VNC_DEBUG("Websock handshake failed %s\n", error_get_pretty(err)); |
105 | vnc_client_error(vs); | |
60e705c5 | 106 | error_free(err); |
d5f04223 DB |
107 | } else { |
108 | VNC_DEBUG("Websock handshake complete, starting VNC protocol\n"); | |
dbee9897 | 109 | vnc_start_protocol(vs); |
a75d6f07 BC |
110 | if (vs->ioc_tag) { |
111 | g_source_remove(vs->ioc_tag); | |
112 | } | |
04d2529d | 113 | vs->ioc_tag = qio_channel_add_watch( |
2ddafce7 DH |
114 | vs->ioc, G_IO_IN | G_IO_HUP | G_IO_ERR, |
115 | vnc_client_io, vs, NULL); | |
7536ee4b TH |
116 | } |
117 | } | |
118 | ||
119 | ||
04d2529d | 120 | gboolean vncws_handshake_io(QIOChannel *ioc G_GNUC_UNUSED, |
2ddafce7 | 121 | GIOCondition condition, |
04d2529d DB |
122 | void *opaque) |
123 | { | |
124 | VncState *vs = opaque; | |
d5f04223 | 125 | QIOChannelWebsock *wioc; |
7536ee4b | 126 | |
d5f04223 DB |
127 | if (vs->ioc_tag) { |
128 | g_source_remove(vs->ioc_tag); | |
129 | vs->ioc_tag = 0; | |
7536ee4b TH |
130 | } |
131 | ||
2ddafce7 DH |
132 | if (condition & (G_IO_HUP | G_IO_ERR)) { |
133 | vnc_client_error(vs); | |
134 | return TRUE; | |
135 | } | |
136 | ||
d5f04223 | 137 | wioc = qio_channel_websock_new_server(vs->ioc); |
10bcfe58 | 138 | qio_channel_set_name(QIO_CHANNEL(wioc), "vnc-ws-server-websock"); |
7536ee4b | 139 | |
d5f04223 DB |
140 | object_unref(OBJECT(vs->ioc)); |
141 | vs->ioc = QIO_CHANNEL(wioc); | |
ad6374c4 | 142 | trace_vnc_client_io_wrap(vs, vs->ioc, "websock"); |
7536ee4b | 143 | |
d5f04223 DB |
144 | qio_channel_websock_handshake(wioc, |
145 | vncws_handshake_done, | |
146 | vs, | |
147 | NULL); | |
7536ee4b | 148 | |
d5f04223 | 149 | return TRUE; |
7536ee4b | 150 | } |