--- /dev/null
+/*
+ * Copyright (c) 1997 - 2005 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.
+ */
+
+#define KRB5_DEPRECATED /* uses v4 functions that will die */
+
+#include "hprop.h"
+
+static int version_flag;
+static int help_flag;
+static const char *ktname = HPROP_KEYTAB;
+static const char *database;
+static char *mkeyfile;
+static int to_stdout;
+static int verbose_flag;
+static int encrypt_flag;
+static int decrypt_flag;
+static hdb_master_key mkey5;
+
+static char *source_type;
+
+static char *local_realm=NULL;
+
+static int
+open_socket(krb5_context context, const char *hostname, const char *port)
+{
+ struct addrinfo *ai, *a;
+ struct addrinfo hints;
+ int error;
+
+ memset (&hints, 0, sizeof(hints));
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_protocol = IPPROTO_TCP;
+
+ error = getaddrinfo (hostname, port, &hints, &ai);
+ if (error) {
+ warnx ("%s: %s", hostname, gai_strerror(error));
+ return -1;
+ }
+
+ for (a = ai; a != NULL; a = a->ai_next) {
+ int s;
+
+ s = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
+ if (s < 0)
+ continue;
+ if (connect (s, a->ai_addr, a->ai_addrlen) < 0) {
+ warn ("connect(%s)", hostname);
+ close (s);
+ continue;
+ }
+ freeaddrinfo (ai);
+ return s;
+ }
+ warnx ("failed to contact %s", hostname);
+ freeaddrinfo (ai);
+ return -1;
+}
+
+krb5_error_code
+v5_prop(krb5_context context, HDB *db, hdb_entry_ex *entry, void *appdata)
+{
+ krb5_error_code ret;
+ struct prop_data *pd = appdata;
+ krb5_data data;
+
+ if(encrypt_flag) {
+ ret = hdb_seal_keys_mkey(context, &entry->entry, mkey5);
+ if (ret) {
+ krb5_warn(context, ret, "hdb_seal_keys_mkey");
+ return ret;
+ }
+ }
+ if(decrypt_flag) {
+ ret = hdb_unseal_keys_mkey(context, &entry->entry, mkey5);
+ if (ret) {
+ krb5_warn(context, ret, "hdb_unseal_keys_mkey");
+ return ret;
+ }
+ }
+
+ ret = hdb_entry2value(context, &entry->entry, &data);
+ if(ret) {
+ krb5_warn(context, ret, "hdb_entry2value");
+ return ret;
+ }
+
+ if(to_stdout)
+ ret = krb5_write_message(context, &pd->sock, &data);
+ else
+ ret = krb5_write_priv_message(context, pd->auth_context,
+ &pd->sock, &data);
+ krb5_data_free(&data);
+ return ret;
+}
+
+struct getargs args[] = {
+ { "master-key", 'm', arg_string, &mkeyfile, "v5 master key file", "file" },
+ { "database", 'd', arg_string, rk_UNCONST(&database), "database", "file" },
+ { "source", 0, arg_string, &source_type, "type of database to read",
+ "heimdal"
+ "|mit-dump"
+ },
+
+ { "keytab", 'k', arg_string, rk_UNCONST(&ktname),
+ "keytab to use for authentication", "keytab" },
+ { "v5-realm", 'R', arg_string, &local_realm, "v5 realm to use", NULL },
+ { "decrypt", 'D', arg_flag, &decrypt_flag, "decrypt keys", NULL },
+ { "encrypt", 'E', arg_flag, &encrypt_flag, "encrypt keys", NULL },
+ { "stdout", 'n', arg_flag, &to_stdout, "dump to stdout", NULL },
+ { "verbose", 'v', arg_flag, &verbose_flag, NULL, NULL },
+ { "version", 0, arg_flag, &version_flag, NULL, NULL },
+ { "help", 'h', arg_flag, &help_flag, NULL, NULL }
+};
+
+static int num_args = sizeof(args) / sizeof(args[0]);
+
+static void
+usage(int ret)
+{
+ arg_printusage (args, num_args, NULL, "[host[:port]] ...");
+ exit (ret);
+}
+
+static void
+get_creds(krb5_context context, krb5_ccache *cache)
+{
+ krb5_keytab keytab;
+ krb5_principal client;
+ krb5_error_code ret;
+ krb5_get_init_creds_opt *init_opts;
+ krb5_preauthtype preauth = KRB5_PADATA_ENC_TIMESTAMP;
+ krb5_creds creds;
+
+ ret = krb5_kt_register(context, &hdb_get_kt_ops);
+ if(ret) krb5_err(context, 1, ret, "krb5_kt_register");
+
+ ret = krb5_kt_resolve(context, ktname, &keytab);
+ if(ret) krb5_err(context, 1, ret, "krb5_kt_resolve");
+
+ ret = krb5_make_principal(context, &client, NULL,
+ "kadmin", HPROP_NAME, NULL);
+ if(ret) krb5_err(context, 1, ret, "krb5_make_principal");
+
+ ret = krb5_get_init_creds_opt_alloc(context, &init_opts);
+ if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
+ krb5_get_init_creds_opt_set_preauth_list(init_opts, &preauth, 1);
+
+ ret = krb5_get_init_creds_keytab(context, &creds, client, keytab, 0, NULL, init_opts);
+ if(ret) krb5_err(context, 1, ret, "krb5_get_init_creds");
+
+ krb5_get_init_creds_opt_free(context, init_opts);
+
+ ret = krb5_kt_close(context, keytab);
+ if(ret) krb5_err(context, 1, ret, "krb5_kt_close");
+
+ ret = krb5_cc_new_unique(context, krb5_cc_type_memory, NULL, cache);
+ if(ret) krb5_err(context, 1, ret, "krb5_cc_new_unique");
+
+ ret = krb5_cc_initialize(context, *cache, client);
+ if(ret) krb5_err(context, 1, ret, "krb5_cc_initialize");
+
+ krb5_free_principal(context, client);
+
+ ret = krb5_cc_store_cred(context, *cache, &creds);
+ if(ret) krb5_err(context, 1, ret, "krb5_cc_store_cred");
+
+ krb5_free_cred_contents(context, &creds);
+}
+
+enum hprop_source {
+ HPROP_HEIMDAL = 1,
+ HPROP_MIT_DUMP
+};
+
+struct {
+ int type;
+ const char *name;
+} types[] = {
+ { HPROP_HEIMDAL, "heimdal" },
+ { HPROP_MIT_DUMP, "mit-dump" }
+};
+
+static int
+parse_source_type(const char *s)
+{
+ size_t i;
+ for(i = 0; i < sizeof(types) / sizeof(types[0]); i++) {
+ if(strstr(types[i].name, s) == types[i].name)
+ return types[i].type;
+ }
+ return 0;
+}
+
+static int
+iterate (krb5_context context,
+ const char *database_name,
+ HDB *db,
+ int type,
+ struct prop_data *pd)
+{
+ int ret;
+
+ switch(type) {
+ case HPROP_MIT_DUMP:
+ ret = mit_prop_dump(pd, database_name);
+ if (ret)
+ krb5_warn(context, ret, "mit_prop_dump");
+ break;
+ case HPROP_HEIMDAL:
+ ret = hdb_foreach(context, db, HDB_F_DECRYPT, v5_prop, pd);
+ if(ret)
+ krb5_warn(context, ret, "hdb_foreach");
+ break;
+ default:
+ krb5_errx(context, 1, "unknown prop type: %d", type);
+ }
+ return ret;
+}
+
+static int
+dump_database (krb5_context context, int type,
+ const char *database_name, HDB *db)
+{
+ krb5_error_code ret;
+ struct prop_data pd;
+ krb5_data data;
+
+ pd.context = context;
+ pd.auth_context = NULL;
+ pd.sock = STDOUT_FILENO;
+
+ ret = iterate (context, database_name, db, type, &pd);
+ if (ret)
+ krb5_errx(context, 1, "iterate failure");
+ krb5_data_zero (&data);
+ ret = krb5_write_message (context, &pd.sock, &data);
+ if (ret)
+ krb5_err(context, 1, ret, "krb5_write_message");
+
+ return 0;
+}
+
+static int
+propagate_database (krb5_context context, int type,
+ const char *database_name,
+ HDB *db, krb5_ccache ccache,
+ int optidx, int argc, char **argv)
+{
+ krb5_principal server;
+ krb5_error_code ret;
+ int i, failed = 0;
+
+ for(i = optidx; i < argc; i++){
+ krb5_auth_context auth_context;
+ int fd;
+ struct prop_data pd;
+ krb5_data data;
+
+ char *port, portstr[NI_MAXSERV];
+ char *host = argv[i];
+
+ port = strchr(host, ':');
+ if(port == NULL) {
+ snprintf(portstr, sizeof(portstr), "%u",
+ ntohs(krb5_getportbyname (context, "hprop", "tcp",
+ HPROP_PORT)));
+ port = portstr;
+ } else
+ *port++ = '\0';
+
+ fd = open_socket(context, host, port);
+ if(fd < 0) {
+ failed++;
+ krb5_warn (context, errno, "connect %s", host);
+ continue;
+ }
+
+ ret = krb5_sname_to_principal(context, argv[i],
+ HPROP_NAME, KRB5_NT_SRV_HST, &server);
+ if(ret) {
+ failed++;
+ krb5_warn(context, ret, "krb5_sname_to_principal(%s)", host);
+ close(fd);
+ continue;
+ }
+
+ if (local_realm) {
+ krb5_realm my_realm;
+ krb5_get_default_realm(context,&my_realm);
+ krb5_principal_set_realm(context,server,my_realm);
+ krb5_xfree(my_realm);
+ }
+
+ auth_context = NULL;
+ ret = krb5_sendauth(context,
+ &auth_context,
+ &fd,
+ HPROP_VERSION,
+ NULL,
+ server,
+ AP_OPTS_MUTUAL_REQUIRED | AP_OPTS_USE_SUBKEY,
+ NULL, /* in_data */
+ NULL, /* in_creds */
+ ccache,
+ NULL,
+ NULL,
+ NULL);
+
+ krb5_free_principal(context, server);
+
+ if(ret) {
+ failed++;
+ krb5_warn(context, ret, "krb5_sendauth (%s)", host);
+ goto next_host;
+ }
+
+ pd.context = context;
+ pd.auth_context = auth_context;
+ pd.sock = fd;
+
+ ret = iterate (context, database_name, db, type, &pd);
+ if (ret) {
+ krb5_warnx(context, "iterate to host %s failed", host);
+ failed++;
+ goto next_host;
+ }
+
+ krb5_data_zero (&data);
+ ret = krb5_write_priv_message(context, auth_context, &fd, &data);
+ if(ret) {
+ krb5_warn(context, ret, "krb5_write_priv_message");
+ failed++;
+ goto next_host;
+ }
+
+ ret = krb5_read_priv_message(context, auth_context, &fd, &data);
+ if(ret) {
+ krb5_warn(context, ret, "krb5_read_priv_message: %s", host);
+ failed++;
+ goto next_host;
+ } else
+ krb5_data_free (&data);
+
+ next_host:
+ krb5_auth_con_free(context, auth_context);
+ close(fd);
+ }
+ if (failed)
+ return 1;
+ return 0;
+}
+
+int
+main(int argc, char **argv)
+{
+ krb5_error_code ret;
+ krb5_context context;
+ krb5_ccache ccache = NULL;
+ HDB *db = NULL;
+ int optidx = 0;
+
+ int type, exit_code;
+
+ setprogname(argv[0]);
+
+ if(getarg(args, num_args, argc, argv, &optidx))
+ usage(1);
+
+ if(help_flag)
+ usage(0);
+
+ if(version_flag){
+ print_version(NULL);
+ exit(0);
+ }
+
+ ret = krb5_init_context(&context);
+ if(ret)
+ exit(1);
+
+ /* We may be reading an old database encrypted with a DES master key. */
+ ret = krb5_allow_weak_crypto(context, 1);
+ if(ret)
+ krb5_err(context, 1, ret, "krb5_allow_weak_crypto");
+
+ if(local_realm)
+ krb5_set_default_realm(context, local_realm);
+
+ if(encrypt_flag && decrypt_flag)
+ krb5_errx(context, 1,
+ "only one of `--encrypt' and `--decrypt' is meaningful");
+
+ if(source_type != NULL) {
+ type = parse_source_type(source_type);
+ if(type == 0)
+ krb5_errx(context, 1, "unknown source type `%s'", source_type);
+ } else
+ type = HPROP_HEIMDAL;
+
+ if(!to_stdout)
+ get_creds(context, &ccache);
+
+ if(decrypt_flag || encrypt_flag) {
+ ret = hdb_read_master_key(context, mkeyfile, &mkey5);
+ if(ret && ret != ENOENT)
+ krb5_err(context, 1, ret, "hdb_read_master_key");
+ if(ret)
+ krb5_errx(context, 1, "No master key file found");
+ }
+
+ switch(type) {
+ case HPROP_MIT_DUMP:
+ if (database == NULL)
+ krb5_errx(context, 1, "no dump file specified");
+ break;
+ case HPROP_HEIMDAL:
+ ret = hdb_create (context, &db, database);
+ if(ret)
+ krb5_err(context, 1, ret, "hdb_create: %s", database);
+ ret = db->hdb_open(context, db, O_RDONLY, 0);
+ if(ret)
+ krb5_err(context, 1, ret, "db->hdb_open");
+ break;
+ default:
+ krb5_errx(context, 1, "unknown dump type `%d'", type);
+ break;
+ }
+
+ if (to_stdout)
+ exit_code = dump_database (context, type, database, db);
+ else
+ exit_code = propagate_database (context, type, database,
+ db, ccache, optidx, argc, argv);
+
+ if(ccache != NULL)
+ krb5_cc_destroy(context, ccache);
+
+ if(db != NULL)
+ (*db->hdb_destroy)(context, db);
+
+ krb5_free_context(context);
+ return exit_code;
+}
git.samba.org / samba.git / blobdiff