chpass_s.c revision 178825
155682Smarkm/* 2178825Sdfr * Copyright (c) 1997-2006 Kungliga Tekniska H�gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 555682Smarkm * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 955682Smarkm * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 1255682Smarkm * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 1655682Smarkm * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 2055682Smarkm * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#include "kadm5_locl.h" 3555682Smarkm 36178825SdfrRCSID("$Id: chpass_s.c 20608 2007-05-08 07:11:48Z lha $"); 3755682Smarkm 3872445Sassarstatic kadm5_ret_t 3972445Sassarchange(void *server_handle, 4072445Sassar krb5_principal princ, 41178825Sdfr const char *password, 4272445Sassar int cond) 4355682Smarkm{ 4455682Smarkm kadm5_server_context *context = server_handle; 45178825Sdfr hdb_entry_ex ent; 4655682Smarkm kadm5_ret_t ret; 4772445Sassar Key *keys; 4872445Sassar size_t num_keys; 4972445Sassar int cmp = 1; 5072445Sassar 51178825Sdfr memset(&ent, 0, sizeof(ent)); 52178825Sdfr ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0); 5355682Smarkm if(ret) 5455682Smarkm return ret; 55178825Sdfr ret = context->db->hdb_fetch(context->context, context->db, princ, 56178825Sdfr HDB_F_DECRYPT|HDB_F_GET_ANY, &ent); 5755682Smarkm if(ret == HDB_ERR_NOENTRY) 5855682Smarkm goto out; 5972445Sassar 60178825Sdfr num_keys = ent.entry.keys.len; 61178825Sdfr keys = ent.entry.keys.val; 6272445Sassar 63178825Sdfr ent.entry.keys.len = 0; 64178825Sdfr ent.entry.keys.val = NULL; 6572445Sassar 66178825Sdfr ret = _kadm5_set_keys(context, &ent.entry, password); 6772445Sassar if(ret) { 68178825Sdfr _kadm5_free_keys (context->context, num_keys, keys); 6955682Smarkm goto out2; 7072445Sassar } 71178825Sdfr ent.entry.kvno++; 7272445Sassar if (cond) 73178825Sdfr cmp = _kadm5_cmp_keys (ent.entry.keys.val, ent.entry.keys.len, 7472445Sassar keys, num_keys); 75178825Sdfr _kadm5_free_keys (context->context, num_keys, keys); 7672445Sassar 77127808Snectar if (cmp == 0) { 78127808Snectar krb5_set_error_string(context->context, "Password reuse forbidden"); 79127808Snectar ret = KADM5_PASS_REUSE; 80178825Sdfr goto out2; 81127808Snectar } 82178825Sdfr 83178825Sdfr ret = _kadm5_set_modifier(context, &ent.entry); 8455682Smarkm if(ret) 8555682Smarkm goto out2; 8655682Smarkm 87178825Sdfr ret = _kadm5_bump_pw_expire(context, &ent.entry); 8872445Sassar if (ret) 8972445Sassar goto out2; 9055682Smarkm 91178825Sdfr ret = hdb_seal_keys(context->context, context->db, &ent.entry); 9272445Sassar if (ret) 9372445Sassar goto out2; 9472445Sassar 95178825Sdfr ret = context->db->hdb_store(context->context, context->db, 96178825Sdfr HDB_F_REPLACE, &ent); 97178825Sdfr if (ret) 98178825Sdfr goto out2; 99178825Sdfr 10055682Smarkm kadm5_log_modify (context, 101178825Sdfr &ent.entry, 10255682Smarkm KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME | 103178825Sdfr KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION | 104178825Sdfr KADM5_TL_DATA); 105178825Sdfr 10655682Smarkmout2: 10755682Smarkm hdb_free_entry(context->context, &ent); 10855682Smarkmout: 109178825Sdfr context->db->hdb_close(context->context, context->db); 11055682Smarkm return _kadm5_error_code(ret); 11155682Smarkm} 11255682Smarkm 11372445Sassar 11472445Sassar 11572445Sassar/* 11672445Sassar * change the password of `princ' to `password' if it's not already that. 11772445Sassar */ 11872445Sassar 11955682Smarkmkadm5_ret_t 12072445Sassarkadm5_s_chpass_principal_cond(void *server_handle, 12172445Sassar krb5_principal princ, 122178825Sdfr const char *password) 12372445Sassar{ 12472445Sassar return change (server_handle, princ, password, 1); 12572445Sassar} 12672445Sassar 12772445Sassar/* 12872445Sassar * change the password of `princ' to `password' 12972445Sassar */ 13072445Sassar 13172445Sassarkadm5_ret_t 13272445Sassarkadm5_s_chpass_principal(void *server_handle, 13372445Sassar krb5_principal princ, 134178825Sdfr const char *password) 13572445Sassar{ 13672445Sassar return change (server_handle, princ, password, 0); 13772445Sassar} 13872445Sassar 13972445Sassar/* 14072445Sassar * change keys for `princ' to `keys' 14172445Sassar */ 14272445Sassar 14372445Sassarkadm5_ret_t 14455682Smarkmkadm5_s_chpass_principal_with_key(void *server_handle, 14555682Smarkm krb5_principal princ, 14655682Smarkm int n_key_data, 14755682Smarkm krb5_key_data *key_data) 14855682Smarkm{ 14955682Smarkm kadm5_server_context *context = server_handle; 150178825Sdfr hdb_entry_ex ent; 15155682Smarkm kadm5_ret_t ret; 152178825Sdfr 153178825Sdfr memset(&ent, 0, sizeof(ent)); 154178825Sdfr ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0); 15555682Smarkm if(ret) 15655682Smarkm return ret; 157178825Sdfr ret = context->db->hdb_fetch(context->context, context->db, princ, 158178825Sdfr HDB_F_GET_ANY, &ent); 15955682Smarkm if(ret == HDB_ERR_NOENTRY) 16055682Smarkm goto out; 161178825Sdfr ret = _kadm5_set_keys2(context, &ent.entry, n_key_data, key_data); 16255682Smarkm if(ret) 16355682Smarkm goto out2; 164178825Sdfr ent.entry.kvno++; 165178825Sdfr ret = _kadm5_set_modifier(context, &ent.entry); 16655682Smarkm if(ret) 16755682Smarkm goto out2; 168178825Sdfr ret = _kadm5_bump_pw_expire(context, &ent.entry); 16972445Sassar if (ret) 17072445Sassar goto out2; 17155682Smarkm 172178825Sdfr ret = hdb_seal_keys(context->context, context->db, &ent.entry); 17372445Sassar if (ret) 17472445Sassar goto out2; 17555682Smarkm 176178825Sdfr ret = context->db->hdb_store(context->context, context->db, 177178825Sdfr HDB_F_REPLACE, &ent); 178178825Sdfr if (ret) 179178825Sdfr goto out2; 180178825Sdfr 18155682Smarkm kadm5_log_modify (context, 182178825Sdfr &ent.entry, 18355682Smarkm KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME | 184178825Sdfr KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION | 185178825Sdfr KADM5_TL_DATA); 186178825Sdfr 18755682Smarkmout2: 18855682Smarkm hdb_free_entry(context->context, &ent); 18955682Smarkmout: 190178825Sdfr context->db->hdb_close(context->context, context->db); 19155682Smarkm return _kadm5_error_code(ret); 19255682Smarkm} 193