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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" |
0057a0d5 | 25 | |
2cc45228 DB |
26 | static void vncws_tls_handshake_done(Object *source, |
27 | Error *err, | |
28 | gpointer user_data) | |
29 | { | |
30 | VncState *vs = user_data; | |
4a48aaa9 | 31 | |
2cc45228 DB |
32 | if (err) { |
33 | VNC_DEBUG("Handshake failed %s\n", error_get_pretty(err)); | |
34 | vnc_client_error(vs); | |
35 | } else { | |
d5f04223 | 36 | VNC_DEBUG("TLS handshake complete, starting websocket handshake\n"); |
04d2529d | 37 | vs->ioc_tag = qio_channel_add_watch( |
2cc45228 | 38 | QIO_CHANNEL(vs->ioc), G_IO_IN, vncws_handshake_io, vs, NULL); |
3e305e4a | 39 | } |
0057a0d5 TH |
40 | } |
41 | ||
2cc45228 | 42 | |
04d2529d DB |
43 | gboolean vncws_tls_handshake_io(QIOChannel *ioc G_GNUC_UNUSED, |
44 | GIOCondition condition G_GNUC_UNUSED, | |
45 | void *opaque) | |
0057a0d5 | 46 | { |
2cc45228 DB |
47 | VncState *vs = opaque; |
48 | QIOChannelTLS *tls; | |
3e305e4a | 49 | Error *err = NULL; |
0057a0d5 | 50 | |
2cc45228 DB |
51 | VNC_DEBUG("TLS Websocket connection required\n"); |
52 | if (vs->ioc_tag) { | |
53 | g_source_remove(vs->ioc_tag); | |
54 | vs->ioc_tag = 0; | |
55 | } | |
56 | ||
57 | tls = qio_channel_tls_new_server( | |
58 | vs->ioc, | |
59 | vs->vd->tlscreds, | |
60 | vs->vd->tlsaclname, | |
61 | &err); | |
62 | if (!tls) { | |
63 | VNC_DEBUG("Failed to setup TLS %s\n", error_get_pretty(err)); | |
3e305e4a DB |
64 | error_free(err); |
65 | vnc_client_error(vs); | |
04d2529d | 66 | return TRUE; |
0057a0d5 | 67 | } |
3e305e4a | 68 | |
3e305e4a | 69 | VNC_DEBUG("Start TLS WS handshake process\n"); |
2cc45228 DB |
70 | object_unref(OBJECT(vs->ioc)); |
71 | vs->ioc = QIO_CHANNEL(tls); | |
72 | vs->tls = qio_channel_tls_get_session(tls); | |
73 | ||
74 | qio_channel_tls_handshake(tls, | |
75 | vncws_tls_handshake_done, | |
76 | vs, | |
77 | NULL); | |
78 | ||
04d2529d | 79 | return TRUE; |
0057a0d5 | 80 | } |
0057a0d5 | 81 | |
7536ee4b | 82 | |
d5f04223 DB |
83 | static void vncws_handshake_done(Object *source, |
84 | Error *err, | |
85 | gpointer user_data) | |
86 | { | |
87 | VncState *vs = user_data; | |
7536ee4b | 88 | |
d5f04223 DB |
89 | if (err) { |
90 | VNC_DEBUG("Websock handshake failed %s\n", error_get_pretty(err)); | |
91 | vnc_client_error(vs); | |
92 | } else { | |
93 | VNC_DEBUG("Websock handshake complete, starting VNC protocol\n"); | |
94 | vnc_init_state(vs); | |
04d2529d DB |
95 | vs->ioc_tag = qio_channel_add_watch( |
96 | vs->ioc, G_IO_IN, vnc_client_io, vs, NULL); | |
7536ee4b TH |
97 | } |
98 | } | |
99 | ||
100 | ||
04d2529d DB |
101 | gboolean vncws_handshake_io(QIOChannel *ioc G_GNUC_UNUSED, |
102 | GIOCondition condition G_GNUC_UNUSED, | |
103 | void *opaque) | |
104 | { | |
105 | VncState *vs = opaque; | |
d5f04223 | 106 | QIOChannelWebsock *wioc; |
7536ee4b | 107 | |
d5f04223 DB |
108 | VNC_DEBUG("Websocket negotiate starting\n"); |
109 | if (vs->ioc_tag) { | |
110 | g_source_remove(vs->ioc_tag); | |
111 | vs->ioc_tag = 0; | |
7536ee4b TH |
112 | } |
113 | ||
d5f04223 | 114 | wioc = qio_channel_websock_new_server(vs->ioc); |
7536ee4b | 115 | |
d5f04223 DB |
116 | object_unref(OBJECT(vs->ioc)); |
117 | vs->ioc = QIO_CHANNEL(wioc); | |
7536ee4b | 118 | |
d5f04223 DB |
119 | qio_channel_websock_handshake(wioc, |
120 | vncws_handshake_done, | |
121 | vs, | |
122 | NULL); | |
7536ee4b | 123 | |
d5f04223 | 124 | return TRUE; |
7536ee4b | 125 | } |