cd5cca0cac
rename callback() to cc_plugin_register_to_context() and document its purpose. The parameter that is the cc_ops structure is 'plugctx' not 'plug'. This is critical because 'plug' is the common_plugin_model structure and casting the wrong object leads to random behavior including crashes. The test to exit without action was reversed. With these changes ccache plugins can be registered on each krb5_init_context() operation. Change-Id: I295ea91759f69b36ac13b1bfff87306d40df4a26
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/***********************************************************************
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* Copyright (c) 2010, Secure Endpoints Inc.
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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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* - 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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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**********************************************************************/
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#include "krb5_locl.h"
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#include "ccache_plugin.h"
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#endif
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#include <assert.h>
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/*
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* cc_plugin_register_to_context is executed once per krb5_init_context().
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* Its job is to register the plugin's krb5_cc_ops structure with the
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* krb5_context.
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*/
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static krb5_error_code KRB5_LIB_CALL
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cc_plugin_register_to_context(krb5_context context, const void *plug, void *plugctx, void *userctx)
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{
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krb5_cc_ops *ccops = (krb5_cc_ops *)plugctx;
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krb5_error_code ret;
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if (ccops == NULL && ccops->version < KRB5_CC_OPS_VERSION)
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return KRB5_PLUGIN_NO_HANDLE;
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ret = krb5_cc_register(context, ccops, TRUE);
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if (ret != 0)
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*((krb5_error_code *)userctx) = ret;
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return KRB5_PLUGIN_NO_HANDLE;
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}
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KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
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_krb5_load_ccache_plugins(krb5_context context)
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{
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krb5_error_code userctx = 0;
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(void)_krb5_plugin_run_f(context, "krb5", KRB5_PLUGIN_CCACHE,
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0, 0, &userctx, cc_plugin_register_to_context);
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return userctx;
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}
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