143 lines
4.5 KiB
C
143 lines
4.5 KiB
C
/*
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* Copyright (c) 1997 - 2001 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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*
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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 the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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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#include "gssapi_locl.h"
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RCSID("$Id: acquire_cred.c,v 1.4 2001/01/30 00:49:05 assar Exp $");
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OM_uint32 gss_acquire_cred
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(OM_uint32 * minor_status,
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const gss_name_t desired_name,
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OM_uint32 time_req,
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const gss_OID_set desired_mechs,
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gss_cred_usage_t cred_usage,
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gss_cred_id_t * output_cred_handle,
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gss_OID_set * actual_mechs,
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OM_uint32 * time_rec
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)
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{
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gss_cred_id_t handle;
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OM_uint32 ret;
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krb5_principal def_princ;
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krb5_ccache ccache;
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krb5_error_code pret = -1, kret = 0;
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krb5_keytab kt;
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krb5_creds cred;
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krb5_get_init_creds_opt opt;
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handle = (gss_cred_id_t)malloc(sizeof(*handle));
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if (handle == GSS_C_NO_CREDENTIAL) {
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return GSS_S_FAILURE;
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}
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memset(handle, 0, sizeof (*handle));
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ret = gss_duplicate_name(minor_status, desired_name, &handle->principal);
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if (ret) {
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return ret;
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}
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if (krb5_cc_default(gssapi_krb5_context, &ccache) == 0 &&
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(pret = krb5_cc_get_principal(gssapi_krb5_context, ccache,
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&def_princ)) == 0 &&
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krb5_principal_compare(gssapi_krb5_context, handle->principal,
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def_princ) == TRUE) {
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handle->ccache = ccache;
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handle->keytab = NULL;
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} else {
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kret = krb5_kt_default(gssapi_krb5_context, &kt);
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if (kret != 0)
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goto out;
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krb5_get_init_creds_opt_init(&opt);
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memset(&cred, 0, sizeof(cred));
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kret = krb5_get_init_creds_keytab(gssapi_krb5_context, &cred,
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handle->principal, kt, 0, NULL, &opt);
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if (kret != 0) {
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krb5_kt_close(gssapi_krb5_context, kt);
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goto out;
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}
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kret = krb5_cc_gen_new(gssapi_krb5_context, &krb5_mcc_ops, &ccache);
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if (kret != 0) {
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krb5_kt_close(gssapi_krb5_context, kt);
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goto out;
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}
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kret = krb5_cc_initialize(gssapi_krb5_context, ccache, cred.client);
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if (kret != 0) {
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krb5_kt_close(gssapi_krb5_context, kt);
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krb5_cc_close(gssapi_krb5_context, ccache);
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goto out;
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}
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kret = krb5_cc_store_cred(gssapi_krb5_context, ccache, &cred);
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if (kret != 0) {
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krb5_kt_close(gssapi_krb5_context, kt);
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krb5_cc_close(gssapi_krb5_context, ccache);
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goto out;
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}
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handle->ccache = ccache;
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handle->keytab = kt;
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}
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/* XXX */
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handle->lifetime = time_req;
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handle->usage = cred_usage;
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ret = gss_create_empty_oid_set(minor_status, &handle->mechanisms);
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if (ret) {
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return ret;
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}
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ret = gss_add_oid_set_member(minor_status, GSS_KRB5_MECHANISM,
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&handle->mechanisms);
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if (ret) {
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return ret;
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}
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ret = gss_inquire_cred(minor_status, handle, NULL, time_rec, NULL,
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actual_mechs);
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if (ret) {
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return ret;
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}
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*output_cred_handle = handle;
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out:
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if (pret == 0)
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krb5_free_principal(gssapi_krb5_context, def_princ);
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if (kret != 0) {
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*minor_status = kret;
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return GSS_S_FAILURE;
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}
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return GSS_S_COMPLETE;
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}
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