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882f9fddaa3da75a31c3cc39df8d2f3845811821
heimdal/lib/kadm5/ent_setup.c
Luke Howard 0e8c4ccc6e hdb: eliminate hdb_entry_ex 
Remove hdb_entry_ex and revert to the original design of hdb_entry (except with
an additional context member in hdb_entry which is managed by the free_entry
method in HDB).
2022-01-15 18:54:57 +11:00

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/*
* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "kadm5_locl.h"
RCSID("$Id$");
#define set_value(X, V) do { if((X) == NULL) (X) = malloc(sizeof(*(X))); *(X) = V; } while(0)
#define set_null(X) do { if((X) != NULL) free((X)); (X) = NULL; } while (0)
static void
attr_to_flags(unsigned attr, HDBFlags *flags)
{
flags->postdate = !(attr & KRB5_KDB_DISALLOW_POSTDATED);
flags->forwardable = !(attr & KRB5_KDB_DISALLOW_FORWARDABLE);
flags->initial = !!(attr & KRB5_KDB_DISALLOW_TGT_BASED);
flags->renewable = !(attr & KRB5_KDB_DISALLOW_RENEWABLE);
flags->proxiable = !(attr & KRB5_KDB_DISALLOW_PROXIABLE);
/* DUP_SKEY */
flags->invalid = !!(attr & KRB5_KDB_DISALLOW_ALL_TIX);
flags->require_preauth = !!(attr & KRB5_KDB_REQUIRES_PRE_AUTH);
flags->require_pwchange = !!(attr & KRB5_KDB_REQUIRES_PWCHANGE);
/* HW_AUTH */
flags->server = !(attr & KRB5_KDB_DISALLOW_SVR);
flags->change_pw = !!(attr & KRB5_KDB_PWCHANGE_SERVICE);
flags->client = !(attr & KRB5_KDB_DISALLOW_CLIENT);
flags->ok_as_delegate = !!(attr & KRB5_KDB_OK_AS_DELEGATE);
flags->trusted_for_delegation = !!(attr & KRB5_KDB_TRUSTED_FOR_DELEGATION);
flags->allow_kerberos4 = !!(attr & KRB5_KDB_ALLOW_KERBEROS4);
flags->allow_digest = !!(attr & KRB5_KDB_ALLOW_DIGEST);
flags->materialize = !!(attr & KRB5_KDB_MATERIALIZE);
flags->virtual_keys = !!(attr & KRB5_KDB_VIRTUAL_KEYS);
flags->virtual = !!(attr & KRB5_KDB_VIRTUAL);
flags->no_auth_data_reqd = !!(attr & KRB5_KDB_NO_AUTH_DATA_REQUIRED);
}
/*
* Modify the `ent' according to `tl_data'.
*/
static kadm5_ret_t
perform_tl_data(krb5_context context,
HDB *db,
hdb_entry *ent,
const krb5_tl_data *tl_data)
{
kadm5_ret_t ret = 0;
if (tl_data->tl_data_type == KRB5_TL_PASSWORD) {
heim_utf8_string pw = tl_data->tl_data_contents;
if (pw[tl_data->tl_data_length] != '\0')
return KADM5_BAD_TL_TYPE;
ret = hdb_entry_set_password(context, db, ent, pw);
} else if (tl_data->tl_data_type == KRB5_TL_LAST_PWD_CHANGE) {
unsigned long t;
unsigned char *s;
if (tl_data->tl_data_length != 4)
return KADM5_BAD_TL_TYPE;
s = tl_data->tl_data_contents;
(void) _krb5_get_int(s, &t, tl_data->tl_data_length);
ret = hdb_entry_set_pw_change_time(context, ent, t);
} else if (tl_data->tl_data_type == KRB5_TL_KEY_ROTATION) {
HDB_Ext_KeyRotation *prev_kr = 0;
HDB_extension *prev_ext;
HDB_extension ext;
ext.mandatory = 0;
ext.data.element = choice_HDB_extension_data_key_rotation;
prev_ext = hdb_find_extension(ent, ext.data.element);
if (prev_ext)
prev_kr = &prev_ext->data.u.key_rotation;
ret = decode_HDB_Ext_KeyRotation(tl_data->tl_data_contents,
tl_data->tl_data_length,
&ext.data.u.key_rotation, NULL);
if (ret == 0)
ret = hdb_validate_key_rotations(context, prev_kr,
&ext.data.u.key_rotation);
if (ret == 0)
ret = hdb_replace_extension(context, ent, &ext);
free_HDB_extension(&ext);
} else if (tl_data->tl_data_type == KRB5_TL_EXTENSION) {
HDB_extension ext;
ret = decode_HDB_extension(tl_data->tl_data_contents,
tl_data->tl_data_length,
&ext,
NULL);
if (ret)
return KADM5_BAD_TL_TYPE;
if (ext.data.element == choice_HDB_extension_data_key_rotation) {
HDB_extension *prev_ext = hdb_find_extension(ent,
ext.data.element);
HDB_Ext_KeyRotation *prev_kr = 0;
if (prev_ext)
prev_kr = &prev_ext->data.u.key_rotation;
ret = hdb_validate_key_rotations(context, prev_kr,
&ext.data.u.key_rotation);
}
if (ret)
ret = KADM5_BAD_TL_TYPE; /* XXX Need new error code */
if (ret == 0)
ret = hdb_replace_extension(context, ent, &ext);
free_HDB_extension(&ext);
} else if (tl_data->tl_data_type == KRB5_TL_ETYPES) {
if (!ent->etypes &&
(ent->etypes = calloc(1,
sizeof(ent->etypes[0]))) == NULL)
ret = krb5_enomem(context);
if (ent->etypes)
free_HDB_EncTypeList(ent->etypes);
if (ret == 0)
ret = decode_HDB_EncTypeList(tl_data->tl_data_contents,
tl_data->tl_data_length,
ent->etypes, NULL);
if (ret)
return KADM5_BAD_TL_TYPE;
} else if (tl_data->tl_data_type == KRB5_TL_ALIASES) {
return 0;
} else {
return KADM5_BAD_TL_TYPE;
}
return ret;
}
static void
default_flags(hdb_entry *ent)
{
ent->flags.client = 1;
ent->flags.server = 1;
ent->flags.forwardable = 1;
ent->flags.proxiable = 1;
ent->flags.renewable = 1;
ent->flags.postdate = 1;
}
/*
* Create the hdb entry `ent' based on data from `princ' with
* `princ_mask' specifying what fields to be gotten from there and
* `mask' specifying what fields we want filled in.
*/
kadm5_ret_t
_kadm5_setup_entry(kadm5_server_context *context,
hdb_entry *ent,
uint32_t mask,
kadm5_principal_ent_t princ,
uint32_t princ_mask,
kadm5_principal_ent_t def,
uint32_t def_mask)
{
if(mask & KADM5_PRINC_EXPIRE_TIME
&& princ_mask & KADM5_PRINC_EXPIRE_TIME) {
if (princ->princ_expire_time)
set_value(ent->valid_end, princ->princ_expire_time);
else
set_null(ent->valid_end);
}
if(mask & KADM5_PW_EXPIRATION
&& princ_mask & KADM5_PW_EXPIRATION) {
if (princ->pw_expiration)
set_value(ent->pw_end, princ->pw_expiration);
else
set_null(ent->pw_end);
}
if(mask & KADM5_ATTRIBUTES) {
if (princ_mask & KADM5_ATTRIBUTES) {
attr_to_flags(princ->attributes, &ent->flags);
} else if(def_mask & KADM5_ATTRIBUTES) {
attr_to_flags(def->attributes, &ent->flags);
ent->flags.invalid = 0;
} else {
default_flags(ent);
}
}
if(mask & KADM5_MAX_LIFE) {
if(princ_mask & KADM5_MAX_LIFE) {
if(princ->max_life)
set_value(ent->max_life, princ->max_life);
else
set_null(ent->max_life);
} else if(def_mask & KADM5_MAX_LIFE) {
if(def->max_life)
set_value(ent->max_life, def->max_life);
else
set_null(ent->max_life);
}
}
if(mask & KADM5_KVNO
&& (princ_mask & KADM5_KVNO)) {
krb5_error_code ret;
ret = hdb_change_kvno(context->context, princ->kvno, ent);
if (ret && ret != HDB_ERR_KVNO_NOT_FOUND)
return ret;
ent->kvno = princ->kvno; /* force it */
}
if(mask & KADM5_MAX_RLIFE) {
if(princ_mask & KADM5_MAX_RLIFE) {
if(princ->max_renewable_life)
set_value(ent->max_renew, princ->max_renewable_life);
else
set_null(ent->max_renew);
} else if(def_mask & KADM5_MAX_RLIFE) {
if(def->max_renewable_life)
set_value(ent->max_renew, def->max_renewable_life);
else
set_null(ent->max_renew);
}
}
if(mask & KADM5_KEY_DATA
&& princ_mask & KADM5_KEY_DATA) {
_kadm5_set_keys2(context, ent,
princ->n_key_data, princ->key_data);
}
if(mask & KADM5_TL_DATA) {
krb5_tl_data *tl;
for (tl = princ->tl_data; tl != NULL; tl = tl->tl_data_next) {
kadm5_ret_t ret;
ret = perform_tl_data(context->context, context->db, ent, tl);
if (ret)
return ret;
}
}
if(mask & KADM5_FAIL_AUTH_COUNT) {
/* XXX */
}
return 0;
}
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