xref: /dragonfly/include/rpc/auth_kerb.h (revision c89a6c1b)
1 /*
2  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3  * unrestricted use provided that this legend is included on all tape
4  * media and as a part of the software program in whole or part.  Users
5  * may copy or modify Sun RPC without charge, but are not authorized
6  * to license or distribute it to anyone else except as part of a product or
7  * program developed by the user.
8  *
9  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
11  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
12  *
13  * Sun RPC is provided with no support and without any obligation on the
14  * part of Sun Microsystems, Inc. to assist in its use, correction,
15  * modification or enhancement.
16  *
17  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
18  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
19  * OR ANY PART THEREOF.
20  *
21  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
22  * or profits or other special, indirect and consequential damages, even if
23  * Sun has been advised of the possibility of such damages.
24  *
25  * Sun Microsystems, Inc.
26  * 2550 Garcia Avenue
27  * Mountain View, California  94043
28  *
29  * $FreeBSD: src/include/rpc/auth_kerb.h,v 1.3 2007/02/02 18:11:18 schweikh Exp $
30  */
31 /*
32  * auth_kerb.h, Protocol for Kerberos style authentication for RPC
33  *
34  * Copyright (C) 1986, Sun Microsystems, Inc.
35  */
36 
37 #ifndef	_RPC_AUTH_KERB_H
38 #define	_RPC_AUTH_KERB_H
39 
40 #ifdef KERBEROS
41 
42 #include <kerberos/krb.h>
43 #include <sys/socket.h>
44 #include <sys/t_kuser.h>
45 #include <netinet/in.h>
46 #include <rpc/svc.h>
47 
48 /*
49  * There are two kinds of "names": fullnames and nicknames
50  */
51 enum authkerb_namekind {
52 	AKN_FULLNAME,
53 	AKN_NICKNAME
54 };
55 /*
56  * A fullname contains the ticket and the window
57  */
58 struct authkerb_fullname {
59 	KTEXT_ST ticket;
60 	u_long window;		/* associated window */
61 };
62 
63 /*
64  *  cooked credential stored in rq_clntcred
65  */
66 struct authkerb_clnt_cred {
67 	/* start of AUTH_DAT */
68 	unsigned char k_flags;	/* Flags from ticket */
69 	char    pname[ANAME_SZ]; /* Principal's name */
70 	char    pinst[INST_SZ];	/* His Instance */
71 	char    prealm[REALM_SZ]; /* His Realm */
72 	unsigned long checksum;	/* Data checksum (opt) */
73 	C_Block session;	/* Session Key */
74 	int	life;		/* Life of ticket */
75 	unsigned long time_sec;	/* Time ticket issued */
76 	unsigned long address;	/* Address in ticket */
77 	/* KTEXT_ST reply;	Auth reply (opt) */
78 	/* end of AUTH_DAT */
79 	unsigned long expiry;	/* time the ticket is expiring */
80 	u_long nickname;	/* Nickname into cache */
81 	u_long window;		/* associated window */
82 };
83 
84 typedef struct authkerb_clnt_cred authkerb_clnt_cred;
85 
86 /*
87  * A credential
88  */
89 struct authkerb_cred {
90 	enum authkerb_namekind akc_namekind;
91 	struct authkerb_fullname akc_fullname;
92 	u_long akc_nickname;
93 };
94 
95 /*
96  * A kerb authentication verifier
97  */
98 struct authkerb_verf {
99 	union {
100 		struct timeval akv_ctime;	/* clear time */
101 		des_block akv_xtime;		/* crypt time */
102 	} akv_time_u;
103 	u_long akv_int_u;
104 };
105 
106 /*
107  * des authentication verifier: client variety
108  *
109  * akv_timestamp is the current time.
110  * akv_winverf is the credential window + 1.
111  * Both are encrypted using the conversation key.
112  */
113 #ifndef akv_timestamp
114 #define	akv_timestamp	akv_time_u.akv_ctime
115 #define	akv_xtimestamp	akv_time_u.akv_xtime
116 #define	akv_winverf	akv_int_u
117 #endif
118 /*
119  * des authentication verifier: server variety
120  *
121  * akv_timeverf is the client's timestamp + client's window
122  * akv_nickname is the server's nickname for the client.
123  * akv_timeverf is encrypted using the conversation key.
124  */
125 #ifndef akv_timeverf
126 #define	akv_timeverf	akv_time_u.akv_ctime
127 #define	akv_xtimeverf	akv_time_u.akv_xtime
128 #define	akv_nickname	akv_int_u
129 #endif
130 
131 /*
132  * Register the service name, instance and realm.
133  */
134 extern int	authkerb_create(char *, char *, char *, u_int,
135 			struct netbuf *, int *, dev_t, int, AUTH **);
136 extern bool_t	xdr_authkerb_cred(XDR *, struct authkerb_cred *);
137 extern bool_t	xdr_authkerb_verf(XDR *, struct authkerb_verf *);
138 extern int	svc_kerb_reg(SVCXPRT *, char *, char *, char *);
139 extern enum auth_stat _svcauth_kerb(struct svc_req *, struct rpc_msg *);
140 
141 #endif	/* KERBEROS */
142 #endif	/* !_RPC_AUTH_KERB_H */
143