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/*-
* Copyright (c) 2005 Doug Rabson
* Copyright (c) 2018 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: src/lib/libgssapi/gss_add_cred.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
*/
#include "mech_locl.h"
static OM_uint32
copy_cred_element(OM_uint32 *minor_status,
struct _gss_mechanism_cred *mc,
struct _gss_mechanism_cred **out)
{
gssapi_mech_interface m = mc->gmc_mech;
OM_uint32 major_status, tmp;
struct _gss_mechanism_cred *new_mc;
OM_uint32 initiator_lifetime, acceptor_lifetime;
gss_cred_usage_t cred_usage;
gss_cred_id_t dup_cred = GSS_C_NO_CREDENTIAL;
*out = NULL;
if (m->gm_duplicate_cred) {
major_status = m->gm_duplicate_cred(minor_status,
mc->gmc_cred, &dup_cred);
} else if (m->gm_import_cred && m->gm_export_cred) {
gss_buffer_desc export;
major_status = m->gm_export_cred(minor_status, mc->gmc_cred, &export);
if (major_status == GSS_S_COMPLETE) {
major_status = m->gm_import_cred(minor_status, &export, &dup_cred);
_gss_secure_release_buffer(&tmp, &export);
}
} else {
struct _gss_mechanism_name mn;
mn.gmn_mech = m;
mn.gmn_mech_oid = mc->gmc_mech_oid;
mn.gmn_name = GSS_C_NO_NAME;
/* This path won't work for ephemeral creds or cred stores */
major_status = m->gm_inquire_cred_by_mech(minor_status, mc->gmc_cred,
mc->gmc_mech_oid, &mn.gmn_name,
&initiator_lifetime,
&acceptor_lifetime, &cred_usage);
if (major_status == GSS_S_COMPLETE) {
major_status = _gss_mg_add_mech_cred(minor_status,
m,
NULL, /* mc */
&mn,
cred_usage,
initiator_lifetime,
acceptor_lifetime,
GSS_C_NO_CRED_STORE,
&new_mc,
NULL,
NULL);
m->gm_release_name(&tmp, &mn.gmn_name);
}
}
if (major_status == GSS_S_COMPLETE) {
new_mc = calloc(1, sizeof(*new_mc));
if (new_mc == NULL) {
*minor_status = ENOMEM;
m->gm_release_cred(&tmp, &dup_cred);
return GSS_S_FAILURE;
}
new_mc->gmc_mech = m;
new_mc->gmc_mech_oid = mc->gmc_mech_oid;
new_mc->gmc_cred = dup_cred;
*out = new_mc;
} else
_gss_mg_error(m, *minor_status);
return major_status;
}
GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_duplicate_cred(OM_uint32 *minor_status,
gss_const_cred_id_t input_cred_handle,
gss_cred_id_t *output_cred_handle)
{
struct _gss_mechanism_cred *mc;
struct _gss_cred *new_cred;
struct _gss_cred *cred = (struct _gss_cred *)input_cred_handle;
OM_uint32 major_status, junk;
if (input_cred_handle == GSS_C_NO_CREDENTIAL) {
/*
* "Copy" the default credential by acquiring a cred handle for the
* default credential's name, GSS_C_NO_NAME.
*/
return gss_acquire_cred(minor_status, GSS_C_NO_NAME, GSS_C_INDEFINITE,
GSS_C_NO_OID_SET, GSS_C_BOTH,
output_cred_handle, NULL, NULL);
}
*output_cred_handle = GSS_C_NO_CREDENTIAL;
new_cred = _gss_mg_alloc_cred();
if (!new_cred) {
*minor_status = ENOMEM;
return GSS_S_FAILURE;
}
*minor_status = 0;
major_status = GSS_S_NO_CRED;
HEIM_TAILQ_FOREACH(mc, &cred->gc_mc, gmc_link) {
struct _gss_mechanism_cred *copy_mc;
major_status = copy_cred_element(minor_status, mc, ©_mc);
if (major_status != GSS_S_COMPLETE)
break;
HEIM_TAILQ_INSERT_TAIL(&new_cred->gc_mc, copy_mc, gmc_link);
}
if (major_status != GSS_S_COMPLETE) {
gss_cred_id_t release_cred = (gss_cred_id_t)new_cred;
gss_release_cred(&junk, &release_cred);
new_cred = NULL;
}
*output_cred_handle = (gss_cred_id_t)new_cred;
return major_status;
}
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