keep the PID file locked for the lifetime of the process
[qemu.git] / ui / vnc-auth-sasl.h
1 /*
2 * QEMU VNC display driver: SASL auth protocol
3 *
4 * Copyright (C) 2009 Red Hat, Inc
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
26 #ifndef __QEMU_VNC_AUTH_SASL_H__
27 #define __QEMU_VNC_AUTH_SASL_H__
28
29
30 #include <sasl/sasl.h>
31
32 typedef struct VncStateSASL VncStateSASL;
33 typedef struct VncDisplaySASL VncDisplaySASL;
34
35 #include "acl.h"
36
37 struct VncStateSASL {
38 sasl_conn_t *conn;
39 /* If we want to negotiate an SSF layer with client */
40 int wantSSF :1;
41 /* If we are now running the SSF layer */
42 int runSSF :1;
43 /*
44 * If this is non-zero, then wait for that many bytes
45 * to be written plain, before switching to SSF encoding
46 * This allows the VNC auth result to finish being
47 * written in plain.
48 */
49 unsigned int waitWriteSSF;
50
51 /*
52 * Buffering encoded data to allow more clear data
53 * to be stuffed onto the output buffer
54 */
55 const uint8_t *encoded;
56 unsigned int encodedLength;
57 unsigned int encodedOffset;
58 char *username;
59 char *mechlist;
60 };
61
62 struct VncDisplaySASL {
63 qemu_acl *acl;
64 };
65
66 void vnc_sasl_client_cleanup(VncState *vs);
67
68 long vnc_client_read_sasl(VncState *vs);
69 long vnc_client_write_sasl(VncState *vs);
70
71 void start_auth_sasl(VncState *vs);
72
73 #endif /* __QEMU_VNC_AUTH_SASL_H__ */
74