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30b80fd526
While the QIOChannel APIs for reading/writing data return ssize_t, with negative value indicating an error, the VNC code passes this return value through the vnc_client_io_error() method. This detects the error condition, disconnects the client and returns 0 to indicate error. Thus all the VNC helper methods should return size_t (unsigned), and misleading comments which refer to the possibility of negative return values need fixing. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20171218191228.31018-14-berrange@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* QEMU VNC display driver: SASL auth protocol
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*
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* Copyright (C) 2009 Red Hat, Inc
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_VNC_AUTH_SASL_H
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#define QEMU_VNC_AUTH_SASL_H
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#include <sasl/sasl.h>
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typedef struct VncStateSASL VncStateSASL;
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typedef struct VncDisplaySASL VncDisplaySASL;
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#include "qemu/acl.h"
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#include "qemu/main-loop.h"
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struct VncStateSASL {
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sasl_conn_t *conn;
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/* If we want to negotiate an SSF layer with client */
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bool wantSSF;
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/* If we are now running the SSF layer */
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bool runSSF;
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/*
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* If this is non-zero, then wait for that many bytes
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* to be written plain, before switching to SSF encoding
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* This allows the VNC auth result to finish being
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* written in plain.
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*/
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unsigned int waitWriteSSF;
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/*
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* Buffering encoded data to allow more clear data
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* to be stuffed onto the output buffer
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*/
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const uint8_t *encoded;
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unsigned int encodedLength;
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unsigned int encodedRawLength;
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unsigned int encodedOffset;
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char *username;
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char *mechlist;
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};
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struct VncDisplaySASL {
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qemu_acl *acl;
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};
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void vnc_sasl_client_cleanup(VncState *vs);
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size_t vnc_client_read_sasl(VncState *vs);
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size_t vnc_client_write_sasl(VncState *vs);
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void start_auth_sasl(VncState *vs);
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#endif /* QEMU_VNC_AUTH_SASL_H */
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