3a6229f64a
Microsoft will sometimes split GSS tokens when they exceed a certain size in some protocols. This is specified in [MS-SPNG]: Simple and Protected GSS-API Negotiation Mechanism (SPNEGO) Extension https://winprotocoldoc.blob.core.windows.net/productionwindowsarchives/MS-SPNG/%5bMS-SPNG%5d.pdf sections 3.1.5.4 to 3.1.5.9. We extend gss_accept_sec_context() to recognise partial tokens and to accumulate the fragments until an entire token is available to be processed. If the entire token is not yet available, GSS_S_CONTINUE_NEEDED is returned with a zero length output token. This is specified in RFC2744 page 25-26 to indicate that no reply need be sent. We include updates to the test framework to test split tokens when using SPNEGO.
52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
/*-
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* Copyright (c) 2005 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD: src/lib/libgssapi/context.h,v 1.1 2005/12/29 14:40:20 dfr Exp $
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* $Id$
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*/
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#include <gssapi_mech.h>
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struct _gss_context {
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gss_buffer_desc gc_input;
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char *gc_free_this;
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size_t gc_target_len;
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size_t gc_oid_offset;
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gssapi_mech_interface gc_mech;
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gss_ctx_id_t gc_ctx;
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uint8_t gc_initial;
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};
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#define EXPORT_CONTEXT_VERSION_MASK 0x03
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#define EXPORT_CONTEXT_FLAGS_MASK 0xfc
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#define EXPORT_CONTEXT_FLAG_ACCUMULATING 0x04
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#define EXPORT_CONTEXT_FLAG_MECH_CTX 0x08
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void
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_gss_mg_error(gssapi_mech_interface, OM_uint32);
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OM_uint32
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_gss_mg_get_error(const gss_OID, OM_uint32, gss_buffer_t);
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