277 lines
9.3 KiB
C
277 lines
9.3 KiB
C
/*
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* Copyright (c) 1997 - 2000 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Portions Copyright (c) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadm5_locl.h"
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RCSID("$Id$");
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#define set_value(X, V) do { if((X) == NULL) (X) = malloc(sizeof(*(X))); *(X) = V; } while(0)
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#define set_null(X) do { if((X) != NULL) free((X)); (X) = NULL; } while (0)
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static void
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attr_to_flags(unsigned attr, HDBFlags *flags)
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{
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flags->postdate = !(attr & KRB5_KDB_DISALLOW_POSTDATED);
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flags->forwardable = !(attr & KRB5_KDB_DISALLOW_FORWARDABLE);
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flags->initial = !!(attr & KRB5_KDB_DISALLOW_TGT_BASED);
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flags->renewable = !(attr & KRB5_KDB_DISALLOW_RENEWABLE);
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flags->proxiable = !(attr & KRB5_KDB_DISALLOW_PROXIABLE);
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/* DUP_SKEY */
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flags->invalid = !!(attr & KRB5_KDB_DISALLOW_ALL_TIX);
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flags->require_preauth = !!(attr & KRB5_KDB_REQUIRES_PRE_AUTH);
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flags->require_pwchange = !!(attr & KRB5_KDB_REQUIRES_PWCHANGE);
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/* HW_AUTH */
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flags->server = !(attr & KRB5_KDB_DISALLOW_SVR);
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flags->change_pw = !!(attr & KRB5_KDB_PWCHANGE_SERVICE);
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flags->client = !(attr & KRB5_KDB_DISALLOW_CLIENT);
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flags->ok_as_delegate = !!(attr & KRB5_KDB_OK_AS_DELEGATE);
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flags->trusted_for_delegation = !!(attr & KRB5_KDB_TRUSTED_FOR_DELEGATION);
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flags->allow_kerberos4 = !!(attr & KRB5_KDB_ALLOW_KERBEROS4);
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flags->allow_digest = !!(attr & KRB5_KDB_ALLOW_DIGEST);
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flags->materialize = !!(attr & KRB5_KDB_MATERIALIZE);
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flags->virtual_keys = !!(attr & KRB5_KDB_VIRTUAL_KEYS);
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flags->virtual = !!(attr & KRB5_KDB_VIRTUAL);
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flags->no_auth_data_reqd = !!(attr & KRB5_KDB_NO_AUTH_DATA_REQUIRED);
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flags->auth_data_reqd = !!(attr & KRB5_KDB_AUTH_DATA_REQUIRED);
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if (flags->no_auth_data_reqd && flags->auth_data_reqd)
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flags->auth_data_reqd = 0;
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}
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/*
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* Modify the `ent' according to `tl_data'.
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*/
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static kadm5_ret_t
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perform_tl_data(krb5_context context,
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HDB *db,
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hdb_entry *ent,
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const krb5_tl_data *tl_data)
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{
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kadm5_ret_t ret = 0;
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if (tl_data->tl_data_type == KRB5_TL_PASSWORD) {
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heim_utf8_string pw = tl_data->tl_data_contents;
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if (pw[tl_data->tl_data_length] != '\0')
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return KADM5_BAD_TL_TYPE;
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ret = hdb_entry_set_password(context, db, ent, pw);
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} else if (tl_data->tl_data_type == KRB5_TL_LAST_PWD_CHANGE) {
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unsigned long t;
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unsigned char *s;
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if (tl_data->tl_data_length != 4)
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return KADM5_BAD_TL_TYPE;
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s = tl_data->tl_data_contents;
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(void) _krb5_get_int(s, &t, tl_data->tl_data_length);
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ret = hdb_entry_set_pw_change_time(context, ent, t);
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} else if (tl_data->tl_data_type == KRB5_TL_KEY_ROTATION) {
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HDB_Ext_KeyRotation *prev_kr = 0;
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HDB_extension *prev_ext;
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HDB_extension ext;
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ext.mandatory = 0;
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ext.data.element = choice_HDB_extension_data_key_rotation;
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prev_ext = hdb_find_extension(ent, ext.data.element);
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if (prev_ext)
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prev_kr = &prev_ext->data.u.key_rotation;
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ret = decode_HDB_Ext_KeyRotation(tl_data->tl_data_contents,
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tl_data->tl_data_length,
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&ext.data.u.key_rotation, NULL);
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if (ret == 0)
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ret = hdb_validate_key_rotations(context, prev_kr,
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&ext.data.u.key_rotation);
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if (ret == 0)
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ret = hdb_replace_extension(context, ent, &ext);
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free_HDB_extension(&ext);
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} else if (tl_data->tl_data_type == KRB5_TL_EXTENSION) {
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HDB_extension ext;
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ret = decode_HDB_extension(tl_data->tl_data_contents,
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tl_data->tl_data_length,
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&ext,
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NULL);
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if (ret)
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return KADM5_BAD_TL_TYPE;
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if (ext.data.element == choice_HDB_extension_data_key_rotation) {
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HDB_extension *prev_ext = hdb_find_extension(ent,
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ext.data.element);
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HDB_Ext_KeyRotation *prev_kr = 0;
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if (prev_ext)
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prev_kr = &prev_ext->data.u.key_rotation;
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ret = hdb_validate_key_rotations(context, prev_kr,
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&ext.data.u.key_rotation);
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}
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if (ret)
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ret = KADM5_BAD_TL_TYPE; /* XXX Need new error code */
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if (ret == 0)
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ret = hdb_replace_extension(context, ent, &ext);
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free_HDB_extension(&ext);
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} else if (tl_data->tl_data_type == KRB5_TL_ETYPES) {
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if (!ent->etypes &&
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(ent->etypes = calloc(1,
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sizeof(ent->etypes[0]))) == NULL)
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ret = krb5_enomem(context);
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if (ent->etypes)
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free_HDB_EncTypeList(ent->etypes);
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if (ret == 0)
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ret = decode_HDB_EncTypeList(tl_data->tl_data_contents,
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tl_data->tl_data_length,
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ent->etypes, NULL);
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if (ret)
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return KADM5_BAD_TL_TYPE;
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} else if (tl_data->tl_data_type == KRB5_TL_ALIASES) {
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return 0;
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} else {
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return KADM5_BAD_TL_TYPE;
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}
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return ret;
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}
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static void
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default_flags(hdb_entry *ent)
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{
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ent->flags.client = 1;
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ent->flags.server = 1;
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ent->flags.forwardable = 1;
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ent->flags.proxiable = 1;
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ent->flags.renewable = 1;
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ent->flags.postdate = 1;
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}
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/*
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* Create the hdb entry `ent' based on data from `princ' with
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* `princ_mask' specifying what fields to be gotten from there and
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* `mask' specifying what fields we want filled in.
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*/
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kadm5_ret_t
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_kadm5_setup_entry(kadm5_server_context *context,
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hdb_entry *ent,
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uint32_t mask,
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kadm5_principal_ent_t princ,
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uint32_t princ_mask,
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kadm5_principal_ent_t def,
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uint32_t def_mask)
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{
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if(mask & KADM5_PRINC_EXPIRE_TIME
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&& princ_mask & KADM5_PRINC_EXPIRE_TIME) {
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if (princ->princ_expire_time)
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set_value(ent->valid_end, princ->princ_expire_time);
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else
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set_null(ent->valid_end);
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}
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if(mask & KADM5_PW_EXPIRATION
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&& princ_mask & KADM5_PW_EXPIRATION) {
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if (princ->pw_expiration)
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set_value(ent->pw_end, princ->pw_expiration);
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else
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set_null(ent->pw_end);
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}
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if(mask & KADM5_ATTRIBUTES) {
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if (princ_mask & KADM5_ATTRIBUTES) {
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attr_to_flags(princ->attributes, &ent->flags);
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} else if(def_mask & KADM5_ATTRIBUTES) {
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attr_to_flags(def->attributes, &ent->flags);
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ent->flags.invalid = 0;
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} else {
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default_flags(ent);
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}
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}
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if(mask & KADM5_MAX_LIFE) {
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if(princ_mask & KADM5_MAX_LIFE) {
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if(princ->max_life)
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set_value(ent->max_life, princ->max_life);
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else
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set_null(ent->max_life);
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} else if(def_mask & KADM5_MAX_LIFE) {
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if(def->max_life)
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set_value(ent->max_life, def->max_life);
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else
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set_null(ent->max_life);
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}
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}
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if(mask & KADM5_KVNO
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&& (princ_mask & KADM5_KVNO)) {
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krb5_error_code ret;
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ret = hdb_change_kvno(context->context, princ->kvno, ent);
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if (ret && ret != HDB_ERR_KVNO_NOT_FOUND)
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return ret;
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ent->kvno = princ->kvno; /* force it */
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}
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if(mask & KADM5_MAX_RLIFE) {
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if(princ_mask & KADM5_MAX_RLIFE) {
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if(princ->max_renewable_life)
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set_value(ent->max_renew, princ->max_renewable_life);
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else
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set_null(ent->max_renew);
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} else if(def_mask & KADM5_MAX_RLIFE) {
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if(def->max_renewable_life)
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set_value(ent->max_renew, def->max_renewable_life);
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else
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set_null(ent->max_renew);
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}
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}
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if(mask & KADM5_KEY_DATA
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&& princ_mask & KADM5_KEY_DATA) {
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_kadm5_set_keys2(context, ent,
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princ->n_key_data, princ->key_data);
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}
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if(mask & KADM5_TL_DATA) {
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krb5_tl_data *tl;
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for (tl = princ->tl_data; tl != NULL; tl = tl->tl_data_next) {
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kadm5_ret_t ret;
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ret = perform_tl_data(context->context, context->db, ent, tl);
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if (ret)
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return ret;
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}
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}
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if(mask & KADM5_FAIL_AUTH_COUNT) {
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/* XXX */
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}
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return 0;
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}
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