1 /* $NetBSD: setkey3_s.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1997-2001, 2003, 2005-2006 Kungliga Tekniska Högskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "kadm5_locl.h" 37 38 /** 39 * Server-side function to set new keys for a principal. 40 */ 41 kadm5_ret_t 42 kadm5_s_setkey_principal_3(void *server_handle, 43 krb5_principal princ, 44 krb5_boolean keepold, 45 int n_ks_tuple, 46 krb5_key_salt_tuple *ks_tuple, 47 krb5_keyblock *keyblocks, int n_keys) 48 { 49 kadm5_server_context *context = server_handle; 50 hdb_entry_ex ent; 51 kadm5_ret_t ret = 0; 52 53 memset(&ent, 0, sizeof(ent)); 54 if (!context->keep_open) 55 ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0); 56 if (ret) 57 return ret; 58 59 ret = kadm5_log_init(context); 60 if (ret) { 61 if (!context->keep_open) 62 context->db->hdb_close(context->context, context->db); 63 return ret; 64 } 65 66 ret = context->db->hdb_fetch_kvno(context->context, context->db, princ, 67 HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent); 68 if (ret) { 69 (void) kadm5_log_end(context); 70 if (!context->keep_open) 71 context->db->hdb_close(context->context, context->db); 72 return ret; 73 } 74 75 if (keepold) { 76 ret = hdb_add_current_keys_to_history(context->context, &ent.entry); 77 } else 78 ret = hdb_clear_extension(context->context, &ent.entry, 79 choice_HDB_extension_data_hist_keys); 80 81 /* 82 * Though in practice all real calls to this function will pass an empty 83 * ks_tuple, and cannot in any case employ any salts that require 84 * additional data, we go the extra mile to set any requested salt type 85 * along with a zero length salt value. While we're at it we check that 86 * each ks_tuple's enctype matches the corresponding key enctype. 87 */ 88 if (ret == 0) { 89 int i; 90 91 free_Keys(&ent.entry.keys); 92 for (i = 0; i < n_keys; ++i) { 93 Key k; 94 Salt s; 95 96 k.mkvno = 0; 97 k.key = keyblocks[i]; 98 if (n_ks_tuple == 0) 99 k.salt = 0; 100 else { 101 if (ks_tuple[i].ks_enctype != keyblocks[i].keytype) { 102 ret = KADM5_SETKEY3_ETYPE_MISMATCH; 103 break; 104 } 105 s.type = ks_tuple[i].ks_salttype; 106 s.salt.data = 0; 107 s.opaque = 0; 108 k.salt = &s; 109 } 110 if ((ret = add_Keys(&ent.entry.keys, &k)) != 0) 111 break; 112 } 113 } 114 115 if (ret == 0) { 116 ent.entry.kvno++; 117 ent.entry.flags.require_pwchange = 0; 118 hdb_entry_set_pw_change_time(context->context, &ent.entry, 0); 119 hdb_entry_clear_password(context->context, &ent.entry); 120 121 if ((ret = hdb_seal_keys(context->context, context->db, 122 &ent.entry)) == 0 123 && (ret = _kadm5_set_modifier(context, &ent.entry)) == 0 124 && (ret = _kadm5_bump_pw_expire(context, &ent.entry)) == 0) 125 ret = kadm5_log_modify(context, &ent.entry, 126 KADM5_ATTRIBUTES | KADM5_PRINCIPAL | 127 KADM5_MOD_NAME | KADM5_MOD_TIME | 128 KADM5_KEY_DATA | KADM5_KVNO | 129 KADM5_PW_EXPIRATION | KADM5_TL_DATA); 130 } 131 132 hdb_free_entry(context->context, &ent); 133 (void) kadm5_log_end(context); 134 if (!context->keep_open) 135 context->db->hdb_close(context->context, context->db); 136 return _kadm5_error_code(ret); 137 } 138