1 /* 2 * Copyright (c) 1997 - 2006 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("$Id$"); 37 38 static kadm5_ret_t 39 add_tl_data(kadm5_principal_ent_t ent, int16_t type, 40 const void *data, size_t size) 41 { 42 krb5_tl_data *tl; 43 44 tl = calloc(1, sizeof(*tl)); 45 if (tl == NULL) 46 return _kadm5_error_code(ENOMEM); 47 48 tl->tl_data_type = type; 49 tl->tl_data_length = size; 50 tl->tl_data_contents = malloc(size); 51 if (tl->tl_data_contents == NULL && size != 0) { 52 free(tl); 53 return _kadm5_error_code(ENOMEM); 54 } 55 memcpy(tl->tl_data_contents, data, size); 56 57 tl->tl_data_next = ent->tl_data; 58 ent->tl_data = tl; 59 ent->n_tl_data++; 60 61 return 0; 62 } 63 64 KRB5_LIB_FUNCTION krb5_ssize_t KRB5_LIB_CALL 65 _krb5_put_int(void *buffer, unsigned long value, size_t size); /* XXX */ 66 67 kadm5_ret_t 68 kadm5_s_get_principal(void *server_handle, 69 krb5_principal princ, 70 kadm5_principal_ent_t out, 71 uint32_t mask) 72 { 73 kadm5_server_context *context = server_handle; 74 kadm5_ret_t ret; 75 hdb_entry_ex ent; 76 77 memset(&ent, 0, sizeof(ent)); 78 ret = context->db->hdb_open(context->context, context->db, O_RDONLY, 0); 79 if(ret) 80 return ret; 81 ret = context->db->hdb_fetch_kvno(context->context, context->db, princ, 82 HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent); 83 context->db->hdb_close(context->context, context->db); 84 if(ret) 85 return _kadm5_error_code(ret); 86 87 memset(out, 0, sizeof(*out)); 88 if(mask & KADM5_PRINCIPAL) 89 ret = krb5_copy_principal(context->context, ent.entry.principal, 90 &out->principal); 91 if(ret) 92 goto out; 93 if(mask & KADM5_PRINC_EXPIRE_TIME && ent.entry.valid_end) 94 out->princ_expire_time = *ent.entry.valid_end; 95 if(mask & KADM5_PW_EXPIRATION && ent.entry.pw_end) 96 out->pw_expiration = *ent.entry.pw_end; 97 if(mask & KADM5_LAST_PWD_CHANGE) 98 hdb_entry_get_pw_change_time(&ent.entry, &out->last_pwd_change); 99 if(mask & KADM5_ATTRIBUTES){ 100 out->attributes |= ent.entry.flags.postdate ? 0 : KRB5_KDB_DISALLOW_POSTDATED; 101 out->attributes |= ent.entry.flags.forwardable ? 0 : KRB5_KDB_DISALLOW_FORWARDABLE; 102 out->attributes |= ent.entry.flags.initial ? KRB5_KDB_DISALLOW_TGT_BASED : 0; 103 out->attributes |= ent.entry.flags.renewable ? 0 : KRB5_KDB_DISALLOW_RENEWABLE; 104 out->attributes |= ent.entry.flags.proxiable ? 0 : KRB5_KDB_DISALLOW_PROXIABLE; 105 out->attributes |= ent.entry.flags.invalid ? KRB5_KDB_DISALLOW_ALL_TIX : 0; 106 out->attributes |= ent.entry.flags.require_preauth ? KRB5_KDB_REQUIRES_PRE_AUTH : 0; 107 out->attributes |= ent.entry.flags.server ? 0 : KRB5_KDB_DISALLOW_SVR; 108 out->attributes |= ent.entry.flags.change_pw ? KRB5_KDB_PWCHANGE_SERVICE : 0; 109 out->attributes |= ent.entry.flags.ok_as_delegate ? KRB5_KDB_OK_AS_DELEGATE : 0; 110 out->attributes |= ent.entry.flags.trusted_for_delegation ? KRB5_KDB_TRUSTED_FOR_DELEGATION : 0; 111 out->attributes |= ent.entry.flags.allow_kerberos4 ? KRB5_KDB_ALLOW_KERBEROS4 : 0; 112 out->attributes |= ent.entry.flags.allow_digest ? KRB5_KDB_ALLOW_DIGEST : 0; 113 } 114 if(mask & KADM5_MAX_LIFE) { 115 if(ent.entry.max_life) 116 out->max_life = *ent.entry.max_life; 117 else 118 out->max_life = INT_MAX; 119 } 120 if(mask & KADM5_MOD_TIME) { 121 if(ent.entry.modified_by) 122 out->mod_date = ent.entry.modified_by->time; 123 else 124 out->mod_date = ent.entry.created_by.time; 125 } 126 if(mask & KADM5_MOD_NAME) { 127 if(ent.entry.modified_by) { 128 if (ent.entry.modified_by->principal != NULL) 129 ret = krb5_copy_principal(context->context, 130 ent.entry.modified_by->principal, 131 &out->mod_name); 132 } else if(ent.entry.created_by.principal != NULL) 133 ret = krb5_copy_principal(context->context, 134 ent.entry.created_by.principal, 135 &out->mod_name); 136 else 137 out->mod_name = NULL; 138 } 139 if(ret) 140 goto out; 141 142 if(mask & KADM5_KVNO) 143 out->kvno = ent.entry.kvno; 144 if(mask & KADM5_MKVNO) { 145 size_t n; 146 out->mkvno = 0; /* XXX */ 147 for(n = 0; n < ent.entry.keys.len; n++) 148 if(ent.entry.keys.val[n].mkvno) { 149 out->mkvno = *ent.entry.keys.val[n].mkvno; /* XXX this isn't right */ 150 break; 151 } 152 } 153 #if 0 /* XXX implement */ 154 if(mask & KADM5_AUX_ATTRIBUTES) 155 ; 156 if(mask & KADM5_LAST_SUCCESS) 157 ; 158 if(mask & KADM5_LAST_FAILED) 159 ; 160 if(mask & KADM5_FAIL_AUTH_COUNT) 161 ; 162 #endif 163 if(mask & KADM5_POLICY) 164 out->policy = NULL; 165 if(mask & KADM5_MAX_RLIFE) { 166 if(ent.entry.max_renew) 167 out->max_renewable_life = *ent.entry.max_renew; 168 else 169 out->max_renewable_life = INT_MAX; 170 } 171 if(mask & KADM5_KEY_DATA){ 172 size_t i; 173 Key *key; 174 krb5_key_data *kd; 175 krb5_salt salt; 176 krb5_data *sp; 177 krb5_get_pw_salt(context->context, ent.entry.principal, &salt); 178 out->key_data = malloc(ent.entry.keys.len * sizeof(*out->key_data)); 179 if (out->key_data == NULL && ent.entry.keys.len != 0) { 180 ret = ENOMEM; 181 goto out; 182 } 183 for(i = 0; i < ent.entry.keys.len; i++){ 184 key = &ent.entry.keys.val[i]; 185 kd = &out->key_data[i]; 186 kd->key_data_ver = 2; 187 kd->key_data_kvno = ent.entry.kvno; 188 kd->key_data_type[0] = key->key.keytype; 189 if(key->salt) 190 kd->key_data_type[1] = key->salt->type; 191 else 192 kd->key_data_type[1] = KRB5_PADATA_PW_SALT; 193 /* setup key */ 194 kd->key_data_length[0] = key->key.keyvalue.length; 195 kd->key_data_contents[0] = malloc(kd->key_data_length[0]); 196 if(kd->key_data_contents[0] == NULL && kd->key_data_length[0] != 0){ 197 ret = ENOMEM; 198 break; 199 } 200 memcpy(kd->key_data_contents[0], key->key.keyvalue.data, 201 kd->key_data_length[0]); 202 /* setup salt */ 203 if(key->salt) 204 sp = &key->salt->salt; 205 else 206 sp = &salt.saltvalue; 207 kd->key_data_length[1] = sp->length; 208 kd->key_data_contents[1] = malloc(kd->key_data_length[1]); 209 if(kd->key_data_length[1] != 0 210 && kd->key_data_contents[1] == NULL) { 211 memset(kd->key_data_contents[0], 0, kd->key_data_length[0]); 212 ret = ENOMEM; 213 break; 214 } 215 memcpy(kd->key_data_contents[1], sp->data, kd->key_data_length[1]); 216 out->n_key_data = i + 1; 217 } 218 krb5_free_salt(context->context, salt); 219 } 220 if(ret){ 221 kadm5_free_principal_ent(context, out); 222 goto out; 223 } 224 if(mask & KADM5_TL_DATA) { 225 time_t last_pw_expire; 226 const HDB_Ext_PKINIT_acl *acl; 227 const HDB_Ext_Aliases *aliases; 228 229 ret = hdb_entry_get_pw_change_time(&ent.entry, &last_pw_expire); 230 if (ret == 0 && last_pw_expire) { 231 unsigned char buf[4]; 232 _krb5_put_int(buf, last_pw_expire, sizeof(buf)); 233 ret = add_tl_data(out, KRB5_TL_LAST_PWD_CHANGE, buf, sizeof(buf)); 234 if (ret) 235 goto out; 236 } 237 if(ret){ 238 kadm5_free_principal_ent(context, out); 239 goto out; 240 } 241 /* 242 * If the client was allowed to get key data, let it have the 243 * password too. 244 */ 245 if(mask & KADM5_KEY_DATA) { 246 heim_utf8_string pw; 247 248 ret = hdb_entry_get_password(context->context, 249 context->db, &ent.entry, &pw); 250 if (ret == 0) { 251 (void) add_tl_data(out, KRB5_TL_PASSWORD, pw, strlen(pw) + 1); 252 free(pw); 253 } 254 krb5_clear_error_message(context->context); 255 } 256 257 ret = hdb_entry_get_pkinit_acl(&ent.entry, &acl); 258 if (ret == 0 && acl) { 259 krb5_data buf; 260 size_t len; 261 262 ASN1_MALLOC_ENCODE(HDB_Ext_PKINIT_acl, buf.data, buf.length, 263 acl, &len, ret); 264 if (ret) { 265 kadm5_free_principal_ent(context, out); 266 goto out; 267 } 268 if (len != buf.length) 269 krb5_abortx(context->context, 270 "internal ASN.1 encoder error"); 271 ret = add_tl_data(out, KRB5_TL_PKINIT_ACL, buf.data, buf.length); 272 free(buf.data); 273 if (ret) { 274 kadm5_free_principal_ent(context, out); 275 goto out; 276 } 277 } 278 if(ret){ 279 kadm5_free_principal_ent(context, out); 280 goto out; 281 } 282 283 ret = hdb_entry_get_aliases(&ent.entry, &aliases); 284 if (ret == 0 && aliases) { 285 krb5_data buf; 286 size_t len; 287 288 ASN1_MALLOC_ENCODE(HDB_Ext_Aliases, buf.data, buf.length, 289 aliases, &len, ret); 290 if (ret) { 291 kadm5_free_principal_ent(context, out); 292 goto out; 293 } 294 if (len != buf.length) 295 krb5_abortx(context->context, 296 "internal ASN.1 encoder error"); 297 ret = add_tl_data(out, KRB5_TL_ALIASES, buf.data, buf.length); 298 free(buf.data); 299 if (ret) { 300 kadm5_free_principal_ent(context, out); 301 goto out; 302 } 303 } 304 if(ret){ 305 kadm5_free_principal_ent(context, out); 306 goto out; 307 } 308 309 } 310 out: 311 hdb_free_entry(context->context, &ent); 312 313 return _kadm5_error_code(ret); 314 } 315