sunrpc/rpc/auth_des.h

   1 /* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #ifndef _RPC_AUTH_DES_H
  20 #define _RPC_AUTH_DES_H 1
  21
  22 #include <sys/cdefs.h>
  23 #include <rpc/auth.h>
  24
  25 __BEGIN_DECLS
  26
  27 /* There are two kinds of "names": fullnames and nicknames */
  28 enum authdes_namekind
  29   {
  30     ADN_FULLNAME,
  31     ADN_NICKNAME
  32   };
  33
  34 /* A fullname contains the network name of the client,
  35    a conversation key and the window */
  36 struct authdes_fullname
  37   {
  38     char *name;         /* network name of client, up to MAXNETNAMELEN */
  39     des_block key;      /* conversation key */
  40     u_long window;      /* associated window */
  41   };
  42
  43 /* A credential */
  44 struct authdes_cred
  45   {
  46     enum authdes_namekind adc_namekind;
  47     struct authdes_fullname adc_fullname;
  48     u_long adc_nickname;
  49   };
  50
  51 /* A des authentication verifier */
  52 struct authdes_verf
  53   {
  54     union
  55       {
  56         struct timeval adv_ctime;       /* clear time */
  57         des_block adv_xtime;            /* crypt time */
  58       }
  59     adv_time_u;
  60     u_long adv_int_u;
  61   };
  62
  63 /* des authentication verifier: client variety
  64
  65    adv_timestamp is the current time.
  66    adv_winverf is the credential window + 1.
  67    Both are encrypted using the conversation key. */
  68 #define adv_timestamp  adv_time_u.adv_ctime
  69 #define adv_xtimestamp adv_time_u.adv_xtime
  70 #define adv_winverf    adv_int_u
  71
  72 /* des authentication verifier: server variety
  73
  74    adv_timeverf is the client's timestamp + client's window
  75    adv_nickname is the server's nickname for the client.
  76    adv_timeverf is encrypted using the conversation key. */
  77 #define adv_timeverf   adv_time_u.adv_ctime
  78 #define adv_xtimeverf  adv_time_u.adv_xtime
  79 #define adv_nickname   adv_int_u
  80
  81 /* Map a des credential into a unix cred. */
  82 extern int authdes_getucred __P ((__const struct authdes_cred * __adc,
  83                                   uid_t * __uid, gid_t * __gid,
  84                                   short *__grouplen, gid_t * __groups));
  85
  86 /* Get the public key for NAME and place it in KEY.  NAME can only be
  87    up to MAXNETNAMELEN bytes long and the destination buffer KEY should
  88    have HEXKEYBYTES + 1 bytes long to fit all characters from the key.  */
  89 extern int getpublickey __P ((__const char *__name, char *__key));
  90
  91 /* Get the secret key for NAME and place it in KEY.  PASSWD is used to
  92    decrypt the encrypted key stored in the database.  NAME can only be
  93    up to MAXNETNAMELEN bytes long and the destination buffer KEY
  94    should have HEXKEYBYTES + 1 bytes long to fit all characters from
  95    the key.  */
  96 extern int getsecretkey __P ((__const char *__name, char *__key,
  97                               __const char *__passwd));
  98
  99 extern int rtime __P ((struct sockaddr_in *__addrp,  struct timeval *__timep,
 100                        struct timeval *__timeout));
 101
 102 __END_DECLS
 103
 104
 105 #endif /* rpc/auth_des.h */