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