include/rpc/auth_kerb.h

   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 */