d84512b8d2
The krb5_cc_ops structure is an extensible structure to which new
functionality has been added over the years.
Version zero was the original. It included all functions up to
and including get_default_name().
Version one added set_default().
Version two added lastchange().
Version three added set_kdc_offset() and get_kdc_offset().
Version four broke compatibility by modifying the signatures
of get_name() and resolve(). This was in change
7bf4d76e75 ("krb5: Improve cccol sub
naming; add gss_store_cred_into2()").
Version five restores the original signatures of get_name()
and resolve() and introduces get_name_2() and resolve_2() that
provide the additional cccol functionality.
This change
* introduces version five
* documents which functions are part of each version
* replaces KRB5_CC_OPS_VERSION with KRB5_CC_OPS_VERSION_0,
KRB5_CC_OPS_VERSION_1, KRB5_CC_OPS_VERSION_2, KRB5_CC_OPS_VERSION_3,
and KRB5_CC_OPS_VERSION_5. KRB5_CC_OPS_VERSION_4 is skipped
because of the aforementioned breakage.
* compatibility logic is added to permit ccache plugins to implement
any of version one, two, three, five or a future version.
* all in-tree krb5_cc_ops implementations are updated to version 5.
Change-Id: Iadfce01d10834bc6151939e4d9d196f03001626e
82 lines
2.7 KiB
C
82 lines
2.7 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)
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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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static const char *ccache_plugin_deps[] = { "krb5", NULL };
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static struct heim_plugin_data
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ccache_plugin_data = {
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"krb5",
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KRB5_PLUGIN_CCACHE,
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0,
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ccache_plugin_deps,
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krb5_get_instance
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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, &ccache_plugin_data, 0,
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&userctx, cc_plugin_register_to_context);
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return userctx;
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}
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