Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 482 insertions, 0 deletions

diff --git a/third_party/heimdal/kdc/hprop.c b/third_party/heimdal/kdc/hprop.c
new file mode 100644
index 0000000..c1db11b
--- /dev/null
+++ b/third_party/heimdal/kdc/hprop.c
@@ -0,0 +1,482 @@
+/*
+ * 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 *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, mkey5);
+	if (ret) {
+	    krb5_warn(context, ret, "hdb_seal_keys_mkey");
+	    return ret;
+	}
+    }
+    if(decrypt_flag) {
+	ret = hdb_unseal_keys_mkey(context, entry, mkey5);
+	if (ret) {
+	    krb5_warn(context, ret, "hdb_unseal_keys_mkey");
+	    return ret;
+	}
+    }
+
+    ret = hdb_entry2value(context, 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;
+            ret = krb5_get_default_realm(context,&my_realm);
+	    if (ret == 0) {
+		ret = krb5_principal_set_realm(context,server,my_realm);
+		krb5_xfree(my_realm);
+	    }
+	    if (ret) {
+		failed++;
+		krb5_warn(context, ret, "unable to obtain default or set realm");
+		krb5_free_principal(context, server);
+		close(fd);
+		continue;
+	    }
+        }
+
+	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;
+}