xref: /freebsd/include/rpc/auth_kerb.h (revision 9336e0699bda8a301cd2bfa37106b6ec5e32012e)
1 /*	$FreeBSD$ */
2 /*
3  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
4  * unrestricted use provided that this legend is included on all tape
5  * media and as a part of the software program in whole or part.  Users
6  * may copy or modify Sun RPC without charge, but are not authorized
7  * to license or distribute it to anyone else except as part of a product or
8  * program developed by the user.
9  *
10  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
13  *
14  * Sun RPC is provided with no support and without any obligation on the
15  * part of Sun Microsystems, Inc. to assist in its use, correction,
16  * modification or enhancement.
17  *
18  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20  * OR ANY PART THEREOF.
21  *
22  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23  * or profits or other special, indirect and consequential damages, even if
24  * Sun has been advised of the possibility of such damages.
25  *
26  * Sun Microsystems, Inc.
27  * 2550 Garcia Avenue
28  * Mountain View, California  94043
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  */
50 enum authkerb_namekind {
51 	AKN_FULLNAME,
52 	AKN_NICKNAME
53 };
54 /*
55  * A fullname contains the ticket and the window
56  */
57 struct authkerb_fullname {
58 	KTEXT_ST ticket;
59 	u_long window;		/* associated window */
60 };
61 
62 /*
63  *  cooked credential stored in rq_clntcred
64  */
65 struct 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 
83 typedef struct authkerb_clnt_cred authkerb_clnt_cred;
84 
85 /*
86  * A credential
87  */
88 struct 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  */
97 struct 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  */
133 extern int	authkerb_create(char *, char *, char *, u_int,
134 			struct netbuf *, int *, dev_t, int, AUTH **);
135 extern bool_t	xdr_authkerb_cred(XDR *, struct authkerb_cred *);
136 extern bool_t	xdr_authkerb_verf(XDR *, struct authkerb_verf *);
137 extern int	svc_kerb_reg(SVCXPRT *, char *, char *, char *);
138 extern enum auth_stat _svcauth_kerb(struct svc_req *, struct rpc_msg *);
139 
140 #endif	/* KERBEROS */
141 #endif	/* !_RPC_AUTH_KERB_H */
142