lib/kadm5/ent_setup.c

   1 /*
   2  * Copyright (c) 1997 - 2000 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 #include "kadm5_locl.h"
  35
  36 RCSID("$Id$");
  37
  38 #define set_value(X, V) do { if((X) == NULL) (X) = malloc(sizeof(*(X))); *(X) = V; } while(0)
  39 #define set_null(X)     do { if((X) != NULL) free((X)); (X) = NULL; } while (0)
  40
  41 static void
  42 attr_to_flags(unsigned attr, HDBFlags *flags)
  43 {
  44     flags->postdate =           !(attr & KRB5_KDB_DISALLOW_POSTDATED);
  45     flags->forwardable =        !(attr & KRB5_KDB_DISALLOW_FORWARDABLE);
  46     flags->initial =           !!(attr & KRB5_KDB_DISALLOW_TGT_BASED);
  47     flags->renewable =          !(attr & KRB5_KDB_DISALLOW_RENEWABLE);
  48     flags->proxiable =          !(attr & KRB5_KDB_DISALLOW_PROXIABLE);
  49     /* DUP_SKEY */
  50     flags->invalid =           !!(attr & KRB5_KDB_DISALLOW_ALL_TIX);
  51     flags->require_preauth =   !!(attr & KRB5_KDB_REQUIRES_PRE_AUTH);
  52     /* HW_AUTH */
  53     flags->server =             !(attr & KRB5_KDB_DISALLOW_SVR);
  54     flags->change_pw =         !!(attr & KRB5_KDB_PWCHANGE_SERVICE);
  55     flags->client =             1; /* XXX */
  56     flags->ok_as_delegate =    !!(attr & KRB5_KDB_OK_AS_DELEGATE);
  57     flags->trusted_for_delegation = !!(attr & KRB5_KDB_TRUSTED_FOR_DELEGATION);
  58     flags->allow_kerberos4 =   !!(attr & KRB5_KDB_ALLOW_KERBEROS4);
  59     flags->allow_digest =      !!(attr & KRB5_KDB_ALLOW_DIGEST);
  60 }
  61
  62 /*
  63  * Modify the `ent' according to `tl_data'.
  64  */
  65
  66 static kadm5_ret_t
  67 perform_tl_data(krb5_context context,
  68                 HDB *db,
  69                 hdb_entry_ex *ent,
  70                 const krb5_tl_data *tl_data)
  71 {
  72     kadm5_ret_t ret = 0;
  73
  74     if (tl_data->tl_data_type == KRB5_TL_PASSWORD) {
  75         heim_utf8_string pw = tl_data->tl_data_contents;
  76
  77         if (pw[tl_data->tl_data_length] != '\0')
  78             return KADM5_BAD_TL_TYPE;
  79
  80         ret = hdb_entry_set_password(context, db, &ent->entry, pw);
  81
  82     } else if (tl_data->tl_data_type == KRB5_TL_LAST_PWD_CHANGE) {
  83         unsigned char *s;
  84         time_t t;
  85
  86         if (tl_data->tl_data_length != 4)
  87             return KADM5_BAD_TL_TYPE;
  88
  89         s = tl_data->tl_data_contents;
  90
  91         t = s[0] | (s[1] << 8) | (s[2] << 16) | (s[3] << 24);
  92
  93         ret = hdb_entry_set_pw_change_time(context, &ent->entry, t);
  94
  95     } else if (tl_data->tl_data_type == KRB5_TL_EXTENSION) {
  96         HDB_extension ext;
  97
  98         ret = decode_HDB_extension(tl_data->tl_data_contents,
  99                                    tl_data->tl_data_length,
 100                                    &ext,
 101                                    NULL);
 102         if (ret)
 103             return KADM5_BAD_TL_TYPE;
 104
 105         ret = hdb_replace_extension(context, &ent->entry, &ext);
 106         free_HDB_extension(&ext);
 107     } else {
 108         return KADM5_BAD_TL_TYPE;
 109     }
 110     return ret;
 111 }
 112
 113
 114 /*
 115  * Create the hdb entry `ent' based on data from `princ' with
 116  * `princ_mask' specifying what fields to be gotten from there and
 117  * `mask' specifying what fields we want filled in.
 118  */
 119
 120 kadm5_ret_t
 121 _kadm5_setup_entry(kadm5_server_context *context,
 122                    hdb_entry_ex *ent,
 123                    uint32_t mask,
 124                    kadm5_principal_ent_t princ,
 125                    uint32_t princ_mask,
 126                    kadm5_principal_ent_t def,
 127                    uint32_t def_mask)
 128 {
 129     if(mask & KADM5_PRINC_EXPIRE_TIME
 130        && princ_mask & KADM5_PRINC_EXPIRE_TIME) {
 131         if (princ->princ_expire_time)
 132             set_value(ent->entry.valid_end, princ->princ_expire_time);
 133         else
 134             set_null(ent->entry.valid_end);
 135     }
 136     if(mask & KADM5_PW_EXPIRATION
 137        && princ_mask & KADM5_PW_EXPIRATION) {
 138         if (princ->pw_expiration)
 139             set_value(ent->entry.pw_end, princ->pw_expiration);
 140         else
 141             set_null(ent->entry.pw_end);
 142     }
 143     if(mask & KADM5_ATTRIBUTES) {
 144         if (princ_mask & KADM5_ATTRIBUTES) {
 145             attr_to_flags(princ->attributes, &ent->entry.flags);
 146         } else if(def_mask & KADM5_ATTRIBUTES) {
 147             attr_to_flags(def->attributes, &ent->entry.flags);
 148             ent->entry.flags.invalid = 0;
 149         } else {
 150             ent->entry.flags.client      = 1;
 151             ent->entry.flags.server      = 1;
 152             ent->entry.flags.forwardable = 1;
 153             ent->entry.flags.proxiable   = 1;
 154             ent->entry.flags.renewable   = 1;
 155             ent->entry.flags.postdate    = 1;
 156         }
 157     }
 158     if(mask & KADM5_MAX_LIFE) {
 159         if(princ_mask & KADM5_MAX_LIFE) {
 160             if(princ->max_life)
 161               set_value(ent->entry.max_life, princ->max_life);
 162             else
 163               set_null(ent->entry.max_life);
 164         } else if(def_mask & KADM5_MAX_LIFE) {
 165             if(def->max_life)
 166               set_value(ent->entry.max_life, def->max_life);
 167             else
 168               set_null(ent->entry.max_life);
 169         }
 170     }
 171     if(mask & KADM5_KVNO
 172        && princ_mask & KADM5_KVNO)
 173         ent->entry.kvno = princ->kvno;
 174     if(mask & KADM5_MAX_RLIFE) {
 175         if(princ_mask & KADM5_MAX_RLIFE) {
 176           if(princ->max_renewable_life)
 177             set_value(ent->entry.max_renew, princ->max_renewable_life);
 178           else
 179             set_null(ent->entry.max_renew);
 180         } else if(def_mask & KADM5_MAX_RLIFE) {
 181           if(def->max_renewable_life)
 182             set_value(ent->entry.max_renew, def->max_renewable_life);
 183           else
 184             set_null(ent->entry.max_renew);
 185         }
 186     }
 187     if(mask & KADM5_KEY_DATA
 188        && princ_mask & KADM5_KEY_DATA) {
 189         _kadm5_set_keys2(context, &ent->entry,
 190                          princ->n_key_data, princ->key_data);
 191     }
 192     if(mask & KADM5_TL_DATA) {
 193         krb5_tl_data *tl;
 194
 195         for (tl = princ->tl_data; tl != NULL; tl = tl->tl_data_next) {
 196             kadm5_ret_t ret;
 197             ret = perform_tl_data(context->context, context->db, ent, tl);
 198             if (ret)
 199                 return ret;
 200         }
 201     }
 202     if(mask & KADM5_FAIL_AUTH_COUNT) {
 203         /* XXX */
 204     }
 205     return 0;
 206 }