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 "qemu/acl.h"
  36 #include "qemu/main-loop.h"
  37
  38 struct VncStateSASL {
  39     sasl_conn_t *conn;
  40     /* If we want to negotiate an SSF layer with client */
  41     bool wantSSF;
  42     /* If we are now running the SSF layer */
  43     bool runSSF;
  44     /*
  45      * If this is non-zero, then wait for that many bytes
  46      * to be written plain, before switching to SSF encoding
  47      * This allows the VNC auth result to finish being
  48      * written in plain.
  49      */
  50     unsigned int waitWriteSSF;
  51
  52     /*
  53      * Buffering encoded data to allow more clear data
  54      * to be stuffed onto the output buffer
  55      */
  56     const uint8_t *encoded;
  57     unsigned int encodedLength;
  58     unsigned int encodedOffset;
  59     char *username;
  60     char *mechlist;
  61 };
  62
  63 struct VncDisplaySASL {
  64     qemu_acl *acl;
  65 };
  66
  67 void vnc_sasl_client_cleanup(VncState *vs);
  68
  69 long vnc_client_read_sasl(VncState *vs);
  70 long vnc_client_write_sasl(VncState *vs);
  71
  72 void start_auth_sasl(VncState *vs);
  73
  74 #endif /* __QEMU_VNC_AUTH_SASL_H__ */
  75