crypto/dist/heimdal/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("$Heimdal: ent_setup.c 18823 2006-10-22 10:15:53Z lha $"
  37         "$NetBSD$");
  38
  39 #define set_value(X, V) do { if((X) == NULL) (X) = malloc(sizeof(*(X))); *(X) = V; } while(0)
  40 #define set_null(X)     do { if((X) != NULL) free((X)); (X) = NULL; } while (0)
  41
  42 static void
  43 attr_to_flags(unsigned attr, HDBFlags *flags)
  44 {
  45     flags->postdate =           !(attr & KRB5_KDB_DISALLOW_POSTDATED);
  46     flags->forwardable =        !(attr & KRB5_KDB_DISALLOW_FORWARDABLE);
  47     flags->initial =           !!(attr & KRB5_KDB_DISALLOW_TGT_BASED);
  48     flags->renewable =          !(attr & KRB5_KDB_DISALLOW_RENEWABLE);
  49     flags->proxiable =          !(attr & KRB5_KDB_DISALLOW_PROXIABLE);
  50     /* DUP_SKEY */
  51     flags->invalid =           !!(attr & KRB5_KDB_DISALLOW_ALL_TIX);
  52     flags->require_preauth =   !!(attr & KRB5_KDB_REQUIRES_PRE_AUTH);
  53     /* HW_AUTH */
  54     flags->server =             !(attr & KRB5_KDB_DISALLOW_SVR);
  55     flags->change_pw =         !!(attr & KRB5_KDB_PWCHANGE_SERVICE);
  56     flags->client =             1; /* XXX */
  57     flags->ok_as_delegate =    !!(attr & KRB5_KDB_OK_AS_DELEGATE);
  58     flags->trusted_for_delegation = !!(attr & KRB5_KDB_TRUSTED_FOR_DELEGATION);
  59     flags->allow_kerberos4 =   !!(attr & KRB5_KDB_ALLOW_KERBEROS4);
  60     flags->allow_digest =      !!(attr & KRB5_KDB_ALLOW_DIGEST);
  61 }
  62
  63 /*
  64  * Modify the `ent' according to `tl_data'.
  65  */
  66
  67 static kadm5_ret_t
  68 perform_tl_data(krb5_context context,
  69                 HDB *db,
  70                 hdb_entry_ex *ent,
  71                 const krb5_tl_data *tl_data)
  72 {
  73     kadm5_ret_t ret = 0;
  74
  75     if (tl_data->tl_data_type == KRB5_TL_PASSWORD) {
  76         heim_utf8_string pw = tl_data->tl_data_contents;
  77
  78         if (pw[tl_data->tl_data_length] != '\0')
  79             return KADM5_BAD_TL_TYPE;
  80
  81         ret = hdb_entry_set_password(context, db, &ent->entry, pw);
  82
  83     } else if (tl_data->tl_data_type == KRB5_TL_LAST_PWD_CHANGE) {
  84         unsigned char *s;
  85         time_t t;
  86
  87         if (tl_data->tl_data_length != 4)
  88             return KADM5_BAD_TL_TYPE;
  89
  90         s = tl_data->tl_data_contents;
  91
  92         t = s[0] | (s[1] << 8) | (s[2] << 16) | (s[3] << 24);
  93
  94         ret = hdb_entry_set_pw_change_time(context, &ent->entry, t);
  95
  96     } else if (tl_data->tl_data_type == KRB5_TL_EXTENSION) {
  97         HDB_extension ext;
  98
  99         ret = decode_HDB_extension(tl_data->tl_data_contents,
 100                                    tl_data->tl_data_length,
 101                                    &ext,
 102                                    NULL);
 103         if (ret)
 104             return KADM5_BAD_TL_TYPE;
 105
 106         ret = hdb_replace_extension(context, &ent->entry, &ext);
 107         free_HDB_extension(&ext);
 108     } else {
 109         return KADM5_BAD_TL_TYPE;
 110     }
 111     return ret;
 112 }
 113
 114
 115 /*
 116  * Create the hdb entry `ent' based on data from `princ' with
 117  * `princ_mask' specifying what fields to be gotten from there and
 118  * `mask' specifying what fields we want filled in.
 119  */
 120
 121 kadm5_ret_t
 122 _kadm5_setup_entry(kadm5_server_context *context,
 123                    hdb_entry_ex *ent,
 124                    uint32_t mask,
 125                    kadm5_principal_ent_t princ,
 126                    uint32_t princ_mask,
 127                    kadm5_principal_ent_t def,
 128                    uint32_t def_mask)
 129 {
 130     if(mask & KADM5_PRINC_EXPIRE_TIME
 131        && princ_mask & KADM5_PRINC_EXPIRE_TIME) {
 132         if (princ->princ_expire_time)
 133             set_value(ent->entry.valid_end, princ->princ_expire_time);
 134         else
 135             set_null(ent->entry.valid_end);
 136     }
 137     if(mask & KADM5_PW_EXPIRATION
 138        && princ_mask & KADM5_PW_EXPIRATION) {
 139         if (princ->pw_expiration)
 140             set_value(ent->entry.pw_end, princ->pw_expiration);
 141         else
 142             set_null(ent->entry.pw_end);
 143     }
 144     if(mask & KADM5_ATTRIBUTES) {
 145         if (princ_mask & KADM5_ATTRIBUTES) {
 146             attr_to_flags(princ->attributes, &ent->entry.flags);
 147         } else if(def_mask & KADM5_ATTRIBUTES) {
 148             attr_to_flags(def->attributes, &ent->entry.flags);
 149             ent->entry.flags.invalid = 0;
 150         } else {
 151             ent->entry.flags.client      = 1;
 152             ent->entry.flags.server      = 1;
 153             ent->entry.flags.forwardable = 1;
 154             ent->entry.flags.proxiable   = 1;
 155             ent->entry.flags.renewable   = 1;
 156             ent->entry.flags.postdate    = 1;
 157         }
 158     }
 159     if(mask & KADM5_MAX_LIFE) {
 160         if(princ_mask & KADM5_MAX_LIFE) {
 161             if(princ->max_life)
 162               set_value(ent->entry.max_life, princ->max_life);
 163             else
 164               set_null(ent->entry.max_life);
 165         } else if(def_mask & KADM5_MAX_LIFE) {
 166             if(def->max_life)
 167               set_value(ent->entry.max_life, def->max_life);
 168             else
 169               set_null(ent->entry.max_life);
 170         }
 171     }
 172     if(mask & KADM5_KVNO
 173        && princ_mask & KADM5_KVNO)
 174         ent->entry.kvno = princ->kvno;
 175     if(mask & KADM5_MAX_RLIFE) {
 176         if(princ_mask & KADM5_MAX_RLIFE) {
 177           if(princ->max_renewable_life)
 178             set_value(ent->entry.max_renew, princ->max_renewable_life);
 179           else
 180             set_null(ent->entry.max_renew);
 181         } else if(def_mask & KADM5_MAX_RLIFE) {
 182           if(def->max_renewable_life)
 183             set_value(ent->entry.max_renew, def->max_renewable_life);
 184           else
 185             set_null(ent->entry.max_renew);
 186         }
 187     }
 188     if(mask & KADM5_KEY_DATA
 189        && princ_mask & KADM5_KEY_DATA) {
 190         _kadm5_set_keys2(context, &ent->entry,
 191                          princ->n_key_data, princ->key_data);
 192     }
 193     if(mask & KADM5_TL_DATA) {
 194         krb5_tl_data *tl;
 195
 196         for (tl = princ->tl_data; tl != NULL; tl = tl->tl_data_next) {
 197             kadm5_ret_t ret;
 198             ret = perform_tl_data(context->context, context->db, ent, tl);
 199             if (ret)
 200                 return ret;
 201         }
 202     }
 203     if(mask & KADM5_FAIL_AUTH_COUNT) {
 204         /* XXX */
 205     }
 206     return 0;
 207 }