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 */