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+/*
+ * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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 "kadmin_locl.h"
+#include "kadmin-commands.h"
+#include <kadm5/private.h>
+
+RCSID("$Id: init.c 17447 2006-05-05 10:52:01Z lha $");
+
+static kadm5_ret_t
+create_random_entry(krb5_principal princ,
+ unsigned max_life,
+ unsigned max_rlife,
+ uint32_t attributes)
+{
+ kadm5_principal_ent_rec ent;
+ kadm5_ret_t ret;
+ int mask = 0;
+ krb5_keyblock *keys;
+ int n_keys, i;
+ char *name;
+ const char *password;
+ char pwbuf[512];
+
+ random_password(pwbuf, sizeof(pwbuf));
+ password = pwbuf;
+
+ ret = krb5_unparse_name(context, princ, &name);
+ if (ret) {
+ krb5_warn(context, ret, "failed to unparse principal name");
+ return ret;
+ }
+
+ memset(&ent, 0, sizeof(ent));
+ ent.principal = princ;
+ mask |= KADM5_PRINCIPAL;
+ if (max_life) {
+ ent.max_life = max_life;
+ mask |= KADM5_MAX_LIFE;
+ }
+ if (max_rlife) {
+ ent.max_renewable_life = max_rlife;
+ mask |= KADM5_MAX_RLIFE;
+ }
+ ent.attributes |= attributes | KRB5_KDB_DISALLOW_ALL_TIX;
+ mask |= KADM5_ATTRIBUTES;
+
+ /* Create the entry with a random password */
+ ret = kadm5_create_principal(kadm_handle, &ent, mask, password);
+ if(ret) {
+ krb5_warn(context, ret, "create_random_entry(%s): randkey failed",
+ name);
+ goto out;
+ }
+
+ /* Replace the string2key based keys with real random bytes */
+ ret = kadm5_randkey_principal(kadm_handle, princ, &keys, &n_keys);
+ if(ret) {
+ krb5_warn(context, ret, "create_random_entry*%s): randkey failed",
+ name);
+ goto out;
+ }
+ for(i = 0; i < n_keys; i++)
+ krb5_free_keyblock_contents(context, &keys[i]);
+ free(keys);
+ ret = kadm5_get_principal(kadm_handle, princ, &ent,
+ KADM5_PRINCIPAL | KADM5_ATTRIBUTES);
+ if(ret) {
+ krb5_warn(context, ret, "create_random_entry(%s): "
+ "unable to get principal", name);
+ goto out;
+ }
+ ent.attributes &= (~KRB5_KDB_DISALLOW_ALL_TIX);
+ ent.kvno = 1;
+ ret = kadm5_modify_principal(kadm_handle, &ent,
+ KADM5_ATTRIBUTES|KADM5_KVNO);
+ kadm5_free_principal_ent (kadm_handle, &ent);
+ if(ret) {
+ krb5_warn(context, ret, "create_random_entry(%s): "
+ "unable to modify principal", name);
+ goto out;
+ }
+ out:
+ free(name);
+ return ret;
+}
+
+extern int local_flag;
+
+int
+init(struct init_options *opt, int argc, char **argv)
+{
+ kadm5_ret_t ret;
+ int i;
+ HDB *db;
+ krb5_deltat max_life, max_rlife;
+
+ if(!local_flag) {
+ krb5_warnx(context, "init is only available in local (-l) mode");
+ return 0;
+ }
+
+ if (opt->realm_max_ticket_life_string) {
+ if (str2deltat (opt->realm_max_ticket_life_string, &max_life) != 0) {
+ krb5_warnx (context, "unable to parse \"%s\"",
+ opt->realm_max_ticket_life_string);
+ return 0;
+ }
+ }
+ if (opt->realm_max_renewable_life_string) {
+ if (str2deltat (opt->realm_max_renewable_life_string, &max_rlife) != 0) {
+ krb5_warnx (context, "unable to parse \"%s\"",
+ opt->realm_max_renewable_life_string);
+ return 0;
+ }
+ }
+
+ db = _kadm5_s_get_db(kadm_handle);
+
+ ret = db->hdb_open(context, db, O_RDWR | O_CREAT, 0600);
+ if(ret){
+ krb5_warn(context, ret, "hdb_open");
+ return 0;
+ }
+ db->hdb_close(context, db);
+ for(i = 0; i < argc; i++){
+ krb5_principal princ;
+ const char *realm = argv[i];
+
+ /* Create `krbtgt/REALM' */
+ ret = krb5_make_principal(context, &princ, realm,
+ KRB5_TGS_NAME, realm, NULL);
+ if(ret)
+ return 0;
+ if (opt->realm_max_ticket_life_string == NULL) {
+ max_life = 0;
+ if(edit_deltat ("Realm max ticket life", &max_life, NULL, 0)) {
+ krb5_free_principal(context, princ);
+ return 0;
+ }
+ }
+ if (opt->realm_max_renewable_life_string == NULL) {
+ max_rlife = 0;
+ if(edit_deltat("Realm max renewable ticket life", &max_rlife,
+ NULL, 0)) {
+ krb5_free_principal(context, princ);
+ return 0;
+ }
+ }
+ create_random_entry(princ, max_life, max_rlife, 0);
+ krb5_free_principal(context, princ);
+
+ /* Create `kadmin/changepw' */
+ krb5_make_principal(context, &princ, realm,
+ "kadmin", "changepw", NULL);
+ /*
+ * The Windows XP (at least) password changing protocol
+ * request the `kadmin/changepw' ticket with `renewable_ok,
+ * renewable, forwardable' and so fails if we disallow
+ * forwardable here.
+ */
+ create_random_entry(princ, 5*60, 5*60,
+ KRB5_KDB_DISALLOW_TGT_BASED|
+ KRB5_KDB_PWCHANGE_SERVICE|
+ KRB5_KDB_DISALLOW_POSTDATED|
+ KRB5_KDB_DISALLOW_RENEWABLE|
+ KRB5_KDB_DISALLOW_PROXIABLE|
+ KRB5_KDB_REQUIRES_PRE_AUTH);
+ krb5_free_principal(context, princ);
+
+ /* Create `kadmin/admin' */
+ krb5_make_principal(context, &princ, realm,
+ "kadmin", "admin", NULL);
+ create_random_entry(princ, 60*60, 60*60, KRB5_KDB_REQUIRES_PRE_AUTH);
+ krb5_free_principal(context, princ);
+
+ /* Create `changepw/kerberos' (for v4 compat) */
+ krb5_make_principal(context, &princ, realm,
+ "changepw", "kerberos", NULL);
+ create_random_entry(princ, 60*60, 60*60,
+ KRB5_KDB_DISALLOW_TGT_BASED|
+ KRB5_KDB_PWCHANGE_SERVICE);
+
+ krb5_free_principal(context, princ);
+
+ /* Create `kadmin/hprop' for database propagation */
+ krb5_make_principal(context, &princ, realm,
+ "kadmin", "hprop", NULL);
+ create_random_entry(princ, 60*60, 60*60,
+ KRB5_KDB_REQUIRES_PRE_AUTH|
+ KRB5_KDB_DISALLOW_TGT_BASED);
+ krb5_free_principal(context, princ);
+
+ /* Create `default' */
+ {
+ kadm5_principal_ent_rec ent;
+ int mask = 0;
+
+ memset (&ent, 0, sizeof(ent));
+ mask |= KADM5_PRINCIPAL;
+ krb5_make_principal(context, &ent.principal, realm,
+ "default", NULL);
+ mask |= KADM5_MAX_LIFE;
+ ent.max_life = 24 * 60 * 60;
+ mask |= KADM5_MAX_RLIFE;
+ ent.max_renewable_life = 7 * ent.max_life;
+ ent.attributes = KRB5_KDB_DISALLOW_ALL_TIX;
+ mask |= KADM5_ATTRIBUTES;
+
+ ret = kadm5_create_principal(kadm_handle, &ent, mask, "");
+ if (ret)
+ krb5_err (context, 1, ret, "kadm5_create_principal");
+
+ krb5_free_principal(context, ent.principal);
+ }
+ }
+ return 0;
+}
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