a whole krb5_context in TLS. This have some interestion side-effekts for the configruration setting options since they operate on per-thread basis now. git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@19031 ec53bebd-3082-4978-b11e-865c3cabbd6b
		
			
				
	
	
		
			84 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 * Copyright (c) 1997 - 2001, 2003, 2006 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 "krb5/gsskrb5_locl.h"
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RCSID("$Id$");
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static HEIMDAL_MUTEX context_mutex = HEIMDAL_MUTEX_INITIALIZER;
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static int created_key;
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static HEIMDAL_thread_key context_key;
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static void
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destroy_context(void *ptr)
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{
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    krb5_context context = ptr;
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    if (context == NULL)
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	return;
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    krb5_free_context(context);
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}
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krb5_error_code
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_gsskrb5_init (krb5_context *context)
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{
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    krb5_error_code ret = 0;
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    HEIMDAL_MUTEX_lock(&context_mutex);
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    if (!created_key) {
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	HEIMDAL_key_create(&context_key, destroy_context, ret);
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	if (ret) {
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	    HEIMDAL_MUTEX_unlock(&context_mutex);
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	    return ret;
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	}
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	created_key = 1;
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    }
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    HEIMDAL_MUTEX_unlock(&context_mutex);
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    *context = HEIMDAL_getspecific(context_key);
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    if (*context == NULL) {
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	ret = krb5_init_context(context);
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	if (ret == 0) {
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	    HEIMDAL_setspecific(context_key, *context, ret);
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	    if (ret) {
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		krb5_free_context(*context);
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		*context = NULL;
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	    }
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	}
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    }
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    return ret;
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}
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