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-rw-r--r--crypto/heimdal/admin/change.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/crypto/heimdal/admin/change.c b/crypto/heimdal/admin/change.c
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+/*
+ * Copyright (c) 1997 - 2000 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 "ktutil_locl.h"
+
+RCSID("$Id: change.c,v 1.1 2000/01/02 04:41:00 assar Exp $");
+
+static void
+change_entry (krb5_context context, krb5_keytab_entry *entry,
+ const char *realm, const char *admin_server, int server_port)
+{
+ krb5_error_code ret;
+ kadm5_config_params conf;
+ void *kadm_handle;
+ char *client_name;
+ krb5_keyblock *keys;
+ int num_keys;
+ int i;
+
+ ret = krb5_unparse_name (context, entry->principal, &client_name);
+ if (ret) {
+ krb5_warn (context, ret, "kadm5_c_init_with_skey_ctx");
+ return;
+ }
+
+ memset (&conf, 0, sizeof(conf));
+
+ if(realm)
+ conf.realm = (char *)realm;
+ else
+ conf.realm = *krb5_princ_realm (context, entry->principal);
+ conf.mask |= KADM5_CONFIG_REALM;
+
+ if (admin_server) {
+ conf.admin_server = (char *)admin_server;
+ conf.mask |= KADM5_CONFIG_ADMIN_SERVER;
+ }
+
+ if (server_port) {
+ conf.kadmind_port = htons(server_port);
+ conf.mask |= KADM5_CONFIG_KADMIND_PORT;
+ }
+
+ ret = kadm5_init_with_skey_ctx (context,
+ client_name,
+ keytab_string,
+ KADM5_ADMIN_SERVICE,
+ &conf, 0, 0,
+ &kadm_handle);
+ free (client_name);
+ if (ret) {
+ krb5_warn (context, ret, "kadm5_c_init_with_skey_ctx");
+ return;
+ }
+ ret = kadm5_randkey_principal (kadm_handle, entry->principal,
+ &keys, &num_keys);
+ kadm5_destroy (kadm_handle);
+ if (ret) {
+ krb5_warn(context, ret, "kadm5_randkey_principal");
+ return;
+ }
+ for (i = 0; i < num_keys; ++i) {
+ krb5_keytab_entry new_entry;
+
+ new_entry = *entry;
+ new_entry.timestamp = time (NULL);
+ ++new_entry.vno;
+ new_entry.keyblock = keys[i];
+
+ ret = krb5_kt_add_entry (context, keytab, &new_entry);
+ if (ret)
+ krb5_warn (context, ret, "krb5_kt_add_entry");
+ krb5_free_keyblock_contents (context, &keys[i]);
+ }
+}
+
+/*
+ * loop over all the entries in the keytab (or those given) and change
+ * their keys, writing the new keys
+ */
+
+int
+kt_change (int argc, char **argv)
+{
+ krb5_error_code ret;
+ krb5_kt_cursor cursor;
+ krb5_keytab_entry entry;
+ char *realm = NULL;
+ char *admin_server = NULL;
+ int server_port = 0;
+ int help_flag = 0;
+ int optind = 0;
+ int j, max;
+ krb5_principal *princs;
+
+ struct getargs args[] = {
+ { "realm", 'r', arg_string, NULL,
+ "realm to use", "realm"
+ },
+ { "admin-server", 'a', arg_string, NULL,
+ "server to contact", "host"
+ },
+ { "server-port", 's', arg_integer, NULL,
+ "port to contact", "port number"
+ },
+ { "help", 'h', arg_flag, NULL }
+ };
+
+ args[0].value = &realm;
+ args[1].value = &admin_server;
+ args[2].value = &server_port;
+ args[3].value = &help_flag;
+
+ if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind)
+ || help_flag) {
+ arg_printusage(args, sizeof(args) / sizeof(args[0]),
+ "ktutil change", "principal...");
+ return 0;
+ }
+
+ j = 0;
+ max = 10;
+ princs = malloc (max * sizeof(*princs));
+ if (princs == NULL) {
+ krb5_warnx (context, "malloc: out of memory");
+ return 1;
+ }
+
+ ret = krb5_kt_start_seq_get(context, keytab, &cursor);
+ if(ret){
+ krb5_warn(context, ret, "krb5_kt_start_seq_get");
+ return 1;
+ }
+
+ while((ret = krb5_kt_next_entry(context, keytab, &entry, &cursor)) == 0) {
+ int i;
+ int done = 0;
+
+ for (i = 0; i < j; ++i)
+ if (krb5_principal_compare (context, princs[i],
+ entry.principal))
+ break;
+ if (i < j)
+ continue;
+
+ if (optind == argc) {
+ change_entry (context, &entry, realm, admin_server, server_port);
+ done = 1;
+ } else {
+ for (i = optind; i < argc; ++i) {
+ krb5_principal princ;
+
+ ret = krb5_parse_name (context, argv[i], &princ);
+ if (ret) {
+ krb5_warn (context, ret, "krb5_parse_name %s", argv[i]);
+ continue;
+ }
+ if (krb5_principal_compare (context, princ, entry.principal)) {
+ change_entry (context, &entry,
+ realm, admin_server, server_port);
+ done = 1;
+ }
+ krb5_free_principal (context, princ);
+ }
+ }
+ if (done) {
+ if (j >= max) {
+ void *tmp;
+
+ max *= 2;
+ tmp = realloc (princs, max * sizeof(*princs));
+ if (tmp == NULL) {
+ krb5_kt_free_entry (context, &entry);
+ krb5_warnx (context, "realloc: out of memory");
+ break;
+ }
+ princs = tmp;
+ }
+ ret = krb5_copy_principal (context, entry.principal, &princs[j]);
+ if (ret) {
+ krb5_warn (context, ret, "krb5_copy_principal");
+ krb5_kt_free_entry (context, &entry);
+ break;
+ }
+ ++j;
+ }
+ krb5_kt_free_entry (context, &entry);
+ }
+ while (j-- > 0)
+ krb5_free_principal (context, princs[j]);
+ free (princs);
+ ret = krb5_kt_end_seq_get(context, keytab, &cursor);
+ return 0;
+}
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