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  1. /* Copyright (C) 1996, 1997, 1998, 1999 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.     uint32_t 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.     uint32_t adc_nickname;
  49.   };
  50.  
  51. /* A timeval replacement for !32bit platforms */
  52. struct rpc_timeval
  53.   {
  54.     uint32_t tv_sec;            /* Seconds.  */
  55.     uint32_t tv_usec;           /* Microseconds.  */
  56.   };
  57.  
  58. /* A des authentication verifier */
  59. struct authdes_verf
  60.   {
  61.     union
  62.       {
  63.         struct rpc_timeval adv_ctime;   /* clear time */
  64.         des_block adv_xtime;            /* crypt time */
  65.       }
  66.     adv_time_u;
  67.     uint32_t adv_int_u;
  68.   };
  69.  
  70. /* des authentication verifier: client variety
  71.  
  72.    adv_timestamp is the current time.
  73.    adv_winverf is the credential window + 1.
  74.    Both are encrypted using the conversation key. */
  75. #define adv_timestamp  adv_time_u.adv_ctime
  76. #define adv_xtimestamp adv_time_u.adv_xtime
  77. #define adv_winverf    adv_int_u
  78.  
  79. /* des authentication verifier: server variety
  80.  
  81.    adv_timeverf is the client's timestamp + client's window
  82.    adv_nickname is the server's nickname for the client.
  83.    adv_timeverf is encrypted using the conversation key. */
  84. #define adv_timeverf   adv_time_u.adv_ctime
  85. #define adv_xtimeverf  adv_time_u.adv_xtime
  86. #define adv_nickname   adv_int_u
  87.  
  88. /* Map a des credential into a unix cred. */
  89. extern int authdes_getucred (const struct authdes_cred * __adc,
  90.                              uid_t * __uid, gid_t * __gid,
  91.                              short *__grouplen, gid_t * __groups) __THROW;
  92.  
  93. /* Get the public key for NAME and place it in KEY.  NAME can only be
  94.    up to MAXNETNAMELEN bytes long and the destination buffer KEY should
  95.    have HEXKEYBYTES + 1 bytes long to fit all characters from the key.  */
  96. extern int getpublickey (const char *__name, char *__key) __THROW;
  97.  
  98. /* Get the secret key for NAME and place it in KEY.  PASSWD is used to
  99.    decrypt the encrypted key stored in the database.  NAME can only be
  100.    up to MAXNETNAMELEN bytes long and the destination buffer KEY
  101.    should have HEXKEYBYTES + 1 bytes long to fit all characters from
  102.    the key.  */
  103. extern int getsecretkey (const char *__name, char *__key,
  104.                          const char *__passwd) __THROW;
  105.  
  106. extern int rtime (struct sockaddr_in *__addrp, struct rpc_timeval *__timep,
  107.                   struct rpc_timeval *__timeout) __THROW;
  108.  
  109. __END_DECLS
  110.  
  111.  
  112. #endif /* rpc/auth_des.h */
  113.