154 lines
5.0 KiB
C
154 lines
5.0 KiB
C
/*-
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* Copyright (c) 2005 Doug Rabson
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* Copyright (c) 2018 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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* 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_add_cred.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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static OM_uint32
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copy_cred_element(OM_uint32 *minor_status,
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struct _gss_mechanism_cred *mc,
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struct _gss_mechanism_cred **out)
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{
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gssapi_mech_interface m = mc->gmc_mech;
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OM_uint32 major_status, tmp;
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struct _gss_mechanism_cred *new_mc;
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OM_uint32 initiator_lifetime, acceptor_lifetime;
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gss_cred_usage_t cred_usage;
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gss_cred_id_t dup_cred = GSS_C_NO_CREDENTIAL;
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*out = NULL;
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if (m->gm_duplicate_cred) {
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major_status = m->gm_duplicate_cred(minor_status,
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mc->gmc_cred, &dup_cred);
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} else if (m->gm_import_cred && m->gm_export_cred) {
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gss_buffer_desc export;
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major_status = m->gm_export_cred(minor_status, mc->gmc_cred, &export);
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if (major_status == GSS_S_COMPLETE) {
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major_status = m->gm_import_cred(minor_status, &export, &dup_cred);
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_gss_secure_release_buffer(&tmp, &export);
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}
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} else {
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struct _gss_mechanism_name mn;
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mn.gmn_mech = m;
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mn.gmn_mech_oid = mc->gmc_mech_oid;
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mn.gmn_name = GSS_C_NO_NAME;
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/* This path won't work for ephemeral creds or cred stores */
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major_status = m->gm_inquire_cred_by_mech(minor_status, mc->gmc_cred,
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mc->gmc_mech_oid, &mn.gmn_name,
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&initiator_lifetime,
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&acceptor_lifetime, &cred_usage);
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if (major_status == GSS_S_COMPLETE) {
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major_status = _gss_mg_add_mech_cred(minor_status,
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m,
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NULL, /* mc */
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&mn,
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cred_usage,
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initiator_lifetime,
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acceptor_lifetime,
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GSS_C_NO_CRED_STORE,
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&new_mc,
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NULL,
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NULL);
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m->gm_release_name(&tmp, &mn.gmn_name);
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}
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}
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if (major_status == GSS_S_COMPLETE) {
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new_mc = calloc(1, sizeof(*new_mc));
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if (new_mc == NULL) {
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*minor_status = ENOMEM;
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m->gm_release_cred(&tmp, &dup_cred);
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return GSS_S_FAILURE;
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}
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new_mc->gmc_mech = m;
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new_mc->gmc_mech_oid = mc->gmc_mech_oid;
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new_mc->gmc_cred = dup_cred;
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*out = new_mc;
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} else
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_gss_mg_error(m, *minor_status);
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return major_status;
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}
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GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
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gss_duplicate_cred(OM_uint32 *minor_status,
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gss_const_cred_id_t input_cred_handle,
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gss_cred_id_t *output_cred_handle)
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{
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struct _gss_mechanism_cred *mc;
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struct _gss_cred *new_cred;
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struct _gss_cred *cred = (struct _gss_cred *)input_cred_handle;
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OM_uint32 major_status, junk;
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if (input_cred_handle == GSS_C_NO_CREDENTIAL) {
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/*
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* "Copy" the default credential by acquiring a cred handle for the
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* default credential's name, GSS_C_NO_NAME.
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*/
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return gss_acquire_cred(minor_status, GSS_C_NO_NAME, GSS_C_INDEFINITE,
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GSS_C_NO_OID_SET, GSS_C_BOTH,
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output_cred_handle, NULL, NULL);
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}
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*output_cred_handle = GSS_C_NO_CREDENTIAL;
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new_cred = _gss_mg_alloc_cred();
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if (!new_cred) {
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*minor_status = ENOMEM;
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return GSS_S_FAILURE;
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}
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*minor_status = 0;
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major_status = GSS_S_NO_CRED;
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HEIM_TAILQ_FOREACH(mc, &cred->gc_mc, gmc_link) {
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struct _gss_mechanism_cred *copy_mc;
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major_status = copy_cred_element(minor_status, mc, ©_mc);
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if (major_status != GSS_S_COMPLETE)
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break;
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HEIM_TAILQ_INSERT_TAIL(&new_cred->gc_mc, copy_mc, gmc_link);
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}
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if (major_status != GSS_S_COMPLETE) {
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gss_cred_id_t release_cred = (gss_cred_id_t)new_cred;
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gss_release_cred(&junk, &release_cred);
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new_cred = NULL;
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}
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*output_cred_handle = (gss_cred_id_t)new_cred;
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return major_status;
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}
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