31af9ba703
The GSS mechglue uses singly linked lists for mechanisms and mechanism objects, to which new entries are inserted at the head. This breaks ordering of mechanisms specified in OID sets and in /etc/gss/mech, as they will be back to front. Use a tail queue instead so that new entries are inserted at the end.
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*
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* Copyright (c) 2011 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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* Portions Copyright (c) 2011 Apple Inc. 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 KTH nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "mech_locl.h"
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#include "heim_threads.h"
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#include "heimbase.h"
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static OM_uint32
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release_mech_cred(OM_uint32 *minor, struct _gss_mechanism_cred *mc)
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{
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OM_uint32 major;
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major = mc->gmc_mech->gm_release_cred(minor, &mc->gmc_cred);
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free(mc);
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return major;
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}
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void
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_gss_mg_release_cred(struct _gss_cred *cred)
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{
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struct _gss_mechanism_cred *mc, *next;
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OM_uint32 junk;
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HEIM_TAILQ_FOREACH_SAFE(mc, &cred->gc_mc, gmc_link, next) {
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HEIM_TAILQ_REMOVE(&cred->gc_mc, mc, gmc_link);
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release_mech_cred(&junk, mc);
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}
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free(cred);
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}
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struct _gss_cred *
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_gss_mg_alloc_cred(void)
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{
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struct _gss_cred *cred;
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cred = calloc(1, sizeof(struct _gss_cred));
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if (cred == NULL)
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return NULL;
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HEIM_TAILQ_INIT(&cred->gc_mc);
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return cred;
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}
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GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
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gss_release_cred_by_mech(OM_uint32 *minor_status,
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gss_cred_id_t cred_handle,
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gss_const_OID mech_oid)
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{
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struct _gss_cred *cred = (struct _gss_cred *)cred_handle;
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struct _gss_mechanism_cred *mc, *next;
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OM_uint32 major_status = GSS_S_NO_CRED;
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*minor_status = 0;
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HEIM_TAILQ_FOREACH_SAFE(mc, &cred->gc_mc, gmc_link, next) {
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if (gss_oid_equal(mech_oid, mc->gmc_mech_oid)) {
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HEIM_TAILQ_REMOVE(&cred->gc_mc, mc, gmc_link);
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major_status = release_mech_cred(minor_status, mc);
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break;
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}
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}
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return major_status;
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}
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