1/*	$NetBSD: gss_add_cred_with_password.c,v 1.2 2017/01/28 21:31:46 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2005 Doug Rabson
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 *	$FreeBSD: src/lib/libgssapi/gss_add_cred.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
29 */
30
31#include "mech_locl.h"
32
33GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
34gss_add_cred_with_password(OM_uint32 *minor_status,
35    gss_const_cred_id_t input_cred_handle,
36    gss_const_name_t desired_name,
37    const gss_OID desired_mech,
38    const gss_buffer_t password,
39    gss_cred_usage_t cred_usage,
40    OM_uint32 initiator_time_req,
41    OM_uint32 acceptor_time_req,
42    gss_cred_id_t *output_cred_handle,
43    gss_OID_set *actual_mechs,
44    OM_uint32 *initiator_time_rec,
45    OM_uint32 *acceptor_time_rec)
46{
47	OM_uint32 major_status;
48	gssapi_mech_interface m;
49	struct _gss_cred *cred = (struct _gss_cred *) input_cred_handle;
50	struct _gss_cred *new_cred;
51	struct _gss_mechanism_cred *mc;
52	struct _gss_mechanism_name *mn = NULL;
53	OM_uint32 junk, time_req;
54
55	*minor_status = 0;
56	*output_cred_handle = GSS_C_NO_CREDENTIAL;
57	if (initiator_time_rec)
58	    *initiator_time_rec = 0;
59	if (acceptor_time_rec)
60	    *acceptor_time_rec = 0;
61	if (actual_mechs)
62	    *actual_mechs = GSS_C_NO_OID_SET;
63
64	m = __gss_get_mechanism(desired_mech);
65	if (m == NULL) {
66		*minor_status = 0;
67		return (GSS_S_BAD_MECH);
68	}
69
70	new_cred = calloc(1, sizeof(struct _gss_cred));
71	if (new_cred == NULL) {
72		*minor_status = ENOMEM;
73		return (GSS_S_FAILURE);
74	}
75	HEIM_SLIST_INIT(&new_cred->gc_mc);
76
77	/*
78	 * Copy credentials from un-desired mechanisms to the new credential.
79	 */
80	if (cred) {
81		HEIM_SLIST_FOREACH(mc, &cred->gc_mc, gmc_link) {
82			struct _gss_mechanism_cred *copy_mc;
83
84			if (gss_oid_equal(mc->gmc_mech_oid, desired_mech)) {
85				continue;
86			}
87			copy_mc = _gss_copy_cred(mc);
88			if (copy_mc == NULL) {
89				gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
90				*minor_status = ENOMEM;
91				return (GSS_S_FAILURE);
92			}
93			HEIM_SLIST_INSERT_HEAD(&new_cred->gc_mc, copy_mc, gmc_link);
94		}
95	}
96
97	/*
98	 * Figure out a suitable mn, if any.
99	 */
100	if (desired_name != GSS_C_NO_NAME) {
101		major_status = _gss_find_mn(minor_status,
102					    (struct _gss_name *) desired_name,
103					    desired_mech,
104					    &mn);
105		if (major_status != GSS_S_COMPLETE) {
106			gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
107			return (major_status);
108		}
109	}
110
111	if (cred_usage == GSS_C_BOTH)
112		time_req = initiator_time_req > acceptor_time_req ? acceptor_time_req : initiator_time_req;
113	else if (cred_usage == GSS_C_INITIATE)
114		time_req = initiator_time_req;
115	else
116		time_req = acceptor_time_req;
117
118	major_status = _gss_acquire_mech_cred(minor_status, m, mn,
119					      GSS_C_CRED_PASSWORD, password,
120					      time_req, desired_mech,
121					      cred_usage, &mc);
122	if (major_status != GSS_S_COMPLETE) {
123		gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
124		return (major_status);
125	}
126
127	HEIM_SLIST_INSERT_HEAD(&new_cred->gc_mc, mc, gmc_link);
128
129	if (actual_mechs || initiator_time_rec || acceptor_time_rec) {
130		OM_uint32 time_rec;
131
132		major_status = gss_inquire_cred(minor_status,
133						(gss_cred_id_t)new_cred,
134						NULL,
135						&time_rec,
136						NULL,
137						actual_mechs);
138		if (GSS_ERROR(major_status)) {
139			gss_release_cred(&junk, (gss_cred_id_t *)&new_cred);
140			return (major_status);
141		}
142		if (initiator_time_rec &&
143		    (cred_usage == GSS_C_INITIATE || cred_usage == GSS_C_BOTH))
144			*initiator_time_rec = time_rec;
145		if (acceptor_time_rec &&
146		    (cred_usage == GSS_C_ACCEPT || cred_usage == GSS_C_BOTH))
147			*acceptor_time_rec = time_rec;
148	}
149
150	*output_cred_handle = (gss_cred_id_t) new_cred;
151	return (GSS_S_COMPLETE);
152}
153