arlad/cred.h

   1 /*
   2  * Copyright (c) 1995 - 2003 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Header for credetial cache
  36  */
  37
  38 /* $Id$ */
  39
  40 #ifndef _CRED_H_
  41 #define _CRED_H_
  42
  43 #include <sys/types.h>
  44 #include <time.h>
  45 #include <lock.h>
  46 #ifdef HAVE_OPENSSL
  47 #include <openssl/des.h>
  48 #else
  49 #include <des.h>
  50 #endif
  51 #include "bool.h"
  52 #include <nnpfs/nnpfs_message.h>
  53
  54 /* The cred-types we support */
  55 #define CRED_NONE     0
  56 #define CRED_KRB4     1
  57 #define CRED_KRB5     2
  58 #define CRED_GK_K5    3
  59 #define CRED_MAX      CRED_GK_K5
  60 #define CRED_ANY      (-1)
  61
  62 struct cred_rxkad {
  63     struct arla_ClearToken ct;
  64     size_t ticket_len;
  65     unsigned char ticket[MAXKRB4TICKETLEN];
  66 };
  67
  68 struct cred_rxgk {
  69     int type;
  70     union {
  71         struct {
  72             int32_t kvno;
  73             int32_t enctype;
  74             size_t sessionkey_len;
  75             void *sessionkey;
  76             size_t ticket_len;
  77             void *ticket;
  78         } k5;
  79     } t;
  80 };
  81
  82 typedef struct {
  83     nnpfs_pag_t cred;
  84     uid_t uid;
  85     int type;
  86     int securityindex;
  87     long cell;
  88     time_t expire;
  89     void *cred_data;
  90     void (*cred_free_func)(void *);
  91     struct {
  92         unsigned killme : 1;
  93     } flags;
  94     unsigned refcount;
  95     union {
  96         List *list;
  97         Listitem *li;
  98     } pag;
  99 } CredCacheEntry;
 100
 101 void cred_init (unsigned nentries);
 102
 103 CredCacheEntry *
 104 cred_get (long cell, nnpfs_pag_t cred, int type);
 105
 106 void
 107 cred_ref(CredCacheEntry *cred);
 108
 109 int
 110 cred_list_pag(nnpfs_pag_t, int,
 111               int (*func)(CredCacheEntry *, void *),
 112               void *);
 113
 114 void
 115 cred_free (CredCacheEntry *ce);
 116
 117 CredCacheEntry *
 118 cred_add (nnpfs_pag_t cred, int type, int securityindex, long cell,
 119           time_t expire, void *cred_data, size_t cred_data_sz,
 120           uid_t uid);
 121
 122 void
 123 cred_delete (CredCacheEntry *ce);
 124
 125 void
 126 cred_expire (CredCacheEntry *ce);
 127
 128 void cred_status (void);
 129
 130 void cred_remove (nnpfs_pag_t cred);
 131
 132 #endif /* _CRED_H_ */