LXR qemu/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#ifndef QEMU_VNC_AUTH_SASL_H
  26#define QEMU_VNC_AUTH_SASL_H
  27
  28#include <sasl/sasl.h>
  29
  30typedef struct VncStateSASL VncStateSASL;
  31typedef struct VncDisplaySASL VncDisplaySASL;
  32
  33#include "authz/base.h"
  34
  35struct VncStateSASL {
  36    sasl_conn_t *conn;
  37    /* If we want to negotiate an SSF layer with client */
  38    bool wantSSF;
  39    /* If we are now running the SSF layer */
  40    bool runSSF;
  41    /*
  42     * If this is non-zero, then wait for that many bytes
  43     * to be written plain, before switching to SSF encoding
  44     * This allows the VNC auth result to finish being
  45     * written in plain.
  46     */
  47    unsigned int waitWriteSSF;
  48
  49    /*
  50     * Buffering encoded data to allow more clear data
  51     * to be stuffed onto the output buffer
  52     */
  53    const uint8_t *encoded;
  54    unsigned int encodedLength;
  55    unsigned int encodedRawLength;
  56    unsigned int encodedOffset;
  57    char *username;
  58    char *mechlist;
  59};
  60
  61struct VncDisplaySASL {
  62    QAuthZ *authz;
  63    char *authzid;
  64};
  65
  66bool vnc_sasl_server_init(Error **errp);
  67void vnc_sasl_client_cleanup(VncState *vs);
  68
  69size_t vnc_client_read_sasl(VncState *vs);
  70size_t vnc_client_write_sasl(VncState *vs);
  71
  72void start_auth_sasl(VncState *vs);
  73
  74#endif /* QEMU_VNC_AUTH_SASL_H */
  75