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.
141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*-
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* Copyright (c) 2005 Doug Rabson
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* All rights reserved.
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*
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* Portions Copyright (c) 2009 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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* 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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* 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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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD: src/lib/libgssapi/gss_names.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
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*/
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#include "mech_locl.h"
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OM_uint32
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_gss_find_mn(OM_uint32 *minor_status,
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struct _gss_name *name,
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gss_const_OID mech,
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struct _gss_mechanism_name ** output_mn)
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{
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OM_uint32 major_status;
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gssapi_mech_interface m;
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struct _gss_mechanism_name *mn;
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*output_mn = NULL;
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/* null names are ok, some mechs might not have names */
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if (name == NULL)
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return GSS_S_COMPLETE;
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HEIM_TAILQ_FOREACH(mn, &name->gn_mn, gmn_link) {
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if (gss_oid_equal(mech, mn->gmn_mech_oid))
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break;
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}
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if (!mn) {
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/*
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* If this name is canonical (i.e. there is only an
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* MN but it is from a different mech), give up now.
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*/
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if (!name->gn_value.value)
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return GSS_S_BAD_NAME;
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m = __gss_get_mechanism(mech);
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if (!m)
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return (GSS_S_BAD_MECH);
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mn = malloc(sizeof(struct _gss_mechanism_name));
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if (!mn)
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return GSS_S_FAILURE;
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major_status = m->gm_import_name(minor_status,
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&name->gn_value,
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name->gn_type,
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&mn->gmn_name);
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if (major_status != GSS_S_COMPLETE) {
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_gss_mg_error(m, *minor_status);
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free(mn);
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return major_status;
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}
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mn->gmn_mech = m;
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mn->gmn_mech_oid = &m->gm_mech_oid;
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HEIM_TAILQ_INSERT_TAIL(&name->gn_mn, mn, gmn_link);
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}
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*output_mn = mn;
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return 0;
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}
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/*
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* Make a name from an MN.
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*/
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struct _gss_name *
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_gss_create_name(gss_name_t new_mn,
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struct gssapi_mech_interface_desc *m)
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{
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struct _gss_name *name;
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struct _gss_mechanism_name *mn;
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name = calloc(1, sizeof(struct _gss_name));
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if (!name)
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return (0);
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HEIM_TAILQ_INIT(&name->gn_mn);
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if (new_mn) {
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mn = malloc(sizeof(struct _gss_mechanism_name));
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if (!mn) {
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free(name);
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return (0);
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}
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mn->gmn_mech = m;
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mn->gmn_mech_oid = &m->gm_mech_oid;
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mn->gmn_name = new_mn;
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HEIM_TAILQ_INSERT_TAIL(&name->gn_mn, mn, gmn_link);
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}
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return (name);
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}
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/*
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*
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*/
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void
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_gss_mg_release_name(struct _gss_name *name)
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{
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OM_uint32 junk;
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struct _gss_mechanism_name *mn, *next;
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gss_release_oid(&junk, &name->gn_type);
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HEIM_TAILQ_FOREACH_SAFE(mn, &name->gn_mn, gmn_link, next) {
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HEIM_TAILQ_REMOVE(&name->gn_mn, mn, gmn_link);
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mn->gmn_mech->gm_release_name(&junk, &mn->gmn_name);
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free(mn);
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}
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gss_release_buffer(&junk, &name->gn_value);
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free(name);
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}
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