krb5_cc_cache_match() searches all ccache collections for a ccache that has credentials for a given principal name. This includes MEMORY ccaches, which means it can find the same ccache as is referenced by a GSS cred handle given to gss_store_cred(), which means that gss_store_cred() can fail. For now we work around this by including a private variant of krb5_cc_cache_match() that only searches the default ccache, not all collections. Eventually we should ensure that krb5_cc_default() also searches all collection-type (other than MEMORY) ccaches for a default credential, then we can go back to using krb5_cc_cache_match() (though we'll need to make sure that MEMORY is searched last or not at all).
		
			
				
	
	
		
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			58 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (c) 2009 Kungliga Tekniska Högskolan
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 * (Royal Institute of Technology, Stockholm, Sweden).
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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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 *
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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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 *
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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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 * 3. Neither the name of the Institute nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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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#include "mech_locl.h"
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/* See RFC5588 */
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GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
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gss_store_cred(OM_uint32         *minor_status,
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	       gss_cred_id_t     input_cred_handle,
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	       gss_cred_usage_t  cred_usage,
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	       const gss_OID     desired_mech,
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	       OM_uint32         overwrite_cred,
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	       OM_uint32         default_cred,
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	       gss_OID_set       *elements_stored,
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	       gss_cred_usage_t  *cred_usage_stored)
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{
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    return gss_store_cred_into(minor_status,
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			       input_cred_handle,
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			       cred_usage,
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			       desired_mech,
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			       overwrite_cred,
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			       default_cred,
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			       GSS_C_NO_CRED_STORE,
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			       elements_stored,
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			       cred_usage_stored);
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}
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