1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 2009, Sun Microsystems, Inc.
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 are met:
9 * - Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 * - Neither the name of Sun Microsystems, Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30/*
31 * auth_kerb.h, Protocol for Kerberos style authentication for RPC
32 *
33 * Copyright (C) 1986, Sun Microsystems, Inc.
34 */
35
36#ifndef _RPC_AUTH_KERB_H
37#define _RPC_AUTH_KERB_H
38
39#ifdef KERBEROS
40
41#include <kerberos/krb.h>
42#include <sys/socket.h>
43#include <sys/t_kuser.h>
44#include <netinet/in.h>
45#include <rpc/svc.h>
46
47/*
48 * There are two kinds of "names": fullnames and nicknames
49 */
50enum authkerb_namekind {
51 AKN_FULLNAME,
52 AKN_NICKNAME
53};
54/*
55 * A fullname contains the ticket and the window
56 */
57struct authkerb_fullname {
58 KTEXT_ST ticket;
59 u_long window; /* associated window */
60};
61
62/*
63 * cooked credential stored in rq_clntcred
64 */
65struct authkerb_clnt_cred {
66 /* start of AUTH_DAT */
67 unsigned char k_flags; /* Flags from ticket */
68 char pname[ANAME_SZ]; /* Principal's name */
69 char pinst[INST_SZ]; /* His Instance */
70 char prealm[REALM_SZ]; /* His Realm */
71 unsigned long checksum; /* Data checksum (opt) */
72 C_Block session; /* Session Key */
73 int life; /* Life of ticket */
74 unsigned long time_sec; /* Time ticket issued */
75 unsigned long address; /* Address in ticket */
76 /* KTEXT_ST reply; Auth reply (opt) */
77 /* end of AUTH_DAT */
78 unsigned long expiry; /* time the ticket is expiring */
79 u_long nickname; /* Nickname into cache */
80 u_long window; /* associated window */
81};
82
83typedef struct authkerb_clnt_cred authkerb_clnt_cred;
84
85/*
86 * A credential
87 */
88struct authkerb_cred {
89 enum authkerb_namekind akc_namekind;
90 struct authkerb_fullname akc_fullname;
91 u_long akc_nickname;
92};
93
94/*
95 * A kerb authentication verifier
96 */
97struct authkerb_verf {
98 union {
99 struct timeval akv_ctime; /* clear time */
100 des_block akv_xtime; /* crypt time */
101 } akv_time_u;
102 u_long akv_int_u;
103};
104
105/*
106 * des authentication verifier: client variety
107 *
108 * akv_timestamp is the current time.
109 * akv_winverf is the credential window + 1.
110 * Both are encrypted using the conversation key.
111 */
112#ifndef akv_timestamp
113#define akv_timestamp akv_time_u.akv_ctime
114#define akv_xtimestamp akv_time_u.akv_xtime
115#define akv_winverf akv_int_u
116#endif
117/*
118 * des authentication verifier: server variety
119 *
120 * akv_timeverf is the client's timestamp + client's window
121 * akv_nickname is the server's nickname for the client.
122 * akv_timeverf is encrypted using the conversation key.
123 */
124#ifndef akv_timeverf
125#define akv_timeverf akv_time_u.akv_ctime
126#define akv_xtimeverf akv_time_u.akv_xtime
127#define akv_nickname akv_int_u
128#endif
129
130/*
131 * Register the service name, instance and realm.
132 */
133extern int authkerb_create(char *, char *, char *, u_int,
134 struct netbuf *, int *, dev_t, int, AUTH **);
135extern bool_t xdr_authkerb_cred(XDR *, struct authkerb_cred *);
136extern bool_t xdr_authkerb_verf(XDR *, struct authkerb_verf *);
137extern int svc_kerb_reg(SVCXPRT *, char *, char *, char *);
138extern enum auth_stat _svcauth_kerb(struct svc_req *, struct rpc_msg *);
139
140#endif /* KERBEROS */
141#endif /* !_RPC_AUTH_KERB_H */