--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Validate the krb5 pac generation routines
+
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2015
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/kerberos.h"
+#include "torture/smbtorture.h"
+#include "torture/krb5/proto.h"
+#include "auth/credentials/credentials.h"
+#include "lib/cmdline/popt_common.h"
+#include "source4/auth/kerberos/kerberos.h"
+#include "source4/auth/kerberos/kerberos_util.h"
+#include "lib/util/util_net.h"
+
+#define TEST_CANONICALIZE 0x0000001
+#define TEST_ENTERPRISE 0x0000002
+#define TEST_UPPER_REALM 0x0000004
+#define TEST_UPPER_USERNAME 0x0000008
+#define TEST_NETBIOS_REALM 0x0000010
+#define TEST_ALL 0x000001F
+
+struct test_data {
+ struct smb_krb5_context *smb_krb5_context;
+ const char *realm;
+ const char *real_realm;
+ const char *username;
+ bool canonicalize;
+ bool enterprise;
+ bool upper_realm;
+ bool upper_username;
+};
+
+struct torture_krb5_context {
+ struct torture_context *tctx;
+ struct addrinfo *server;
+ struct test_data *test_data;
+ int packet_count;
+ AS_REQ as_req;
+ AS_REP as_rep;
+};
+
+static bool torture_krb5_pre_send_test(struct torture_krb5_context *test_context, const krb5_data *send_buf, krb5_data *modified_send_buf)
+{
+ krb5_error_code k5ret;
+ size_t used;
+ torture_assert_int_equal(test_context->tctx,
+ decode_AS_REQ(send_buf->data, send_buf->length, &test_context->as_req, &used), 0,
+ "decode_AS_REQ failed");
+
+ torture_assert_int_equal(test_context->tctx, used, send_buf->length, "length mismatch");
+ torture_assert_int_equal(test_context->tctx, test_context->as_req.pvno, 5, "Got wrong as_req->pvno");
+ if (test_context->test_data->canonicalize || test_context->test_data->enterprise) {
+ torture_assert(test_context->tctx, test_context->as_req.req_body.kdc_options.canonicalize, "krb5 libs did not set canonicalize!");
+ } else {
+ torture_assert_int_equal(test_context->tctx, test_context->as_req.req_body.kdc_options.canonicalize, false, "krb5 libs unexpectedly set canonicalize!");
+ }
+
+ if (test_context->test_data->enterprise) {
+ torture_assert_int_equal(test_context->tctx, test_context->as_req.req_body.cname->name_type, KRB5_NT_ENTERPRISE_PRINCIPAL, "krb5 libs did not pass principal as enterprise!");
+ } else {
+ torture_assert_int_equal(test_context->tctx, test_context->as_req.req_body.cname->name_type, KRB5_NT_PRINCIPAL, "krb5 libs unexpectedly set principal as enterprise!");
+ }
+
+ /* Force off canonicalize that was forced on by the krb5 libs */
+ if (test_context->test_data->canonicalize == false && test_context->test_data->enterprise) {
+ test_context->as_req.req_body.kdc_options.canonicalize = false;
+ }
+
+ ASN1_MALLOC_ENCODE(AS_REQ, modified_send_buf->data, modified_send_buf->length,
+ &test_context->as_req, &used, k5ret);
+ torture_assert_int_equal(test_context->tctx,
+ k5ret, 0,
+ "encode_AS_REQ failed");
+ torture_assert_int_equal(test_context->tctx, used, send_buf->length, "re-encode length mismatch");
+ return true;
+}
+
+static bool torture_krb5_post_recv_test(struct torture_krb5_context *test_context, const krb5_data *recv_buf)
+{
+ KRB_ERROR error;
+ size_t used;
+ if (test_context->packet_count == 0) {
+ torture_assert_int_equal(test_context->tctx,
+ decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used), 0,
+ "decode_AS_REP failed");
+ torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
+ torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
+ torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KDC_ERR_PREAUTH_REQUIRED - KRB5KDC_ERR_NONE,
+ "Got wrong error.error_code");
+ free_KRB_ERROR(&error);
+ } else if ((decode_KRB_ERROR(recv_buf->data, recv_buf->length, &error, &used) == 0)
+ && (test_context->packet_count == 1)) {
+ torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
+ torture_assert_int_equal(test_context->tctx, error.pvno, 5, "Got wrong error.pvno");
+ torture_assert_int_equal(test_context->tctx, error.error_code, KRB5KRB_ERR_RESPONSE_TOO_BIG - KRB5KDC_ERR_NONE,
+ "Got wrong error.error_code");
+ free_KRB_ERROR(&error);
+ } else {
+ torture_assert_int_equal(test_context->tctx,
+ decode_AS_REP(recv_buf->data, recv_buf->length, &test_context->as_rep, &used), 0,
+ "decode_AS_REP failed");
+ torture_assert_int_equal(test_context->tctx, used, recv_buf->length, "length mismatch");
+ torture_assert_int_equal(test_context->tctx,
+ test_context->as_rep.pvno, 5,
+ "Got wrong as_rep->pvno");
+ torture_assert_int_equal(test_context->tctx,
+ test_context->as_rep.ticket.tkt_vno, 5,
+ "Got wrong as_rep->ticket.tkt_vno");
+ torture_assert(test_context->tctx,
+ test_context->as_rep.ticket.enc_part.kvno,
+ "Did not get a KVNO in test_context->as_rep.ticket.enc_part.kvno");
+ if (torture_setting_bool(test_context->tctx, "expect_rodc", false)) {
+ torture_assert_int_not_equal(test_context->tctx,
+ *test_context->as_rep.ticket.enc_part.kvno & 0xFFFF0000,
+ 0, "Did not get a RODC number in the KVNO");
+ } else {
+ torture_assert_int_equal(test_context->tctx,
+ *test_context->as_rep.ticket.enc_part.kvno & 0xFFFF0000,
+ 0, "Unexpecedly got a RODC number in the KVNO");
+ }
+ free_AS_REP(&test_context->as_rep);
+ }
+ torture_assert(test_context->tctx, test_context->packet_count < 3, "too many packets");
+ free_AS_REQ(&test_context->as_req);
+ return true;
+}
+
+static krb5_error_code smb_krb5_send_and_recv_func_canon_override(krb5_context context,
+ void *data, /* struct torture_krb5_context */
+ krb5_krbhst_info *hi,
+ time_t timeout,
+ const krb5_data *send_buf,
+ krb5_data *recv_buf)
+{
+ krb5_error_code k5ret;
+ bool ok;
+ krb5_data modified_send_buf;
+
+ struct torture_krb5_context *test_context
+ = talloc_get_type_abort(data, struct torture_krb5_context);
+
+ ok = torture_krb5_pre_send_test(test_context, send_buf, &modified_send_buf);
+ if (ok == false) {
+ return EINVAL;
+ }
+
+ k5ret = smb_krb5_send_and_recv_func_forced(context, test_context->server,
+ hi, timeout, &modified_send_buf, recv_buf);
+
+ ok = torture_krb5_post_recv_test(test_context, recv_buf);
+ if (ok == false) {
+ return EINVAL;
+ }
+
+ test_context->packet_count++;
+
+ return k5ret;
+}
+
+static int test_context_destructor(struct torture_krb5_context *test_context)
+{
+ freeaddrinfo(test_context->server);
+ return 0;
+}
+
+
+static bool torture_krb5_init_context_canon(struct torture_context *tctx,
+ struct test_data *test_data,
+ struct smb_krb5_context **smb_krb5_context)
+{
+ const char *host = torture_setting_string(tctx, "host", NULL);
+ krb5_error_code k5ret;
+ bool ok;
+
+ struct torture_krb5_context *test_context = talloc_zero(tctx, struct torture_krb5_context);
+ torture_assert(tctx, test_context != NULL, "Failed to allocate");
+
+ test_context->test_data = test_data;
+ test_context->tctx = tctx;
+
+ k5ret = smb_krb5_init_context(tctx, tctx->lp_ctx, smb_krb5_context);
+ torture_assert_int_equal(tctx, k5ret, 0, "smb_krb5_init_context failed");
+
+ ok = interpret_string_addr_internal(&test_context->server, host, AI_NUMERICHOST);
+ torture_assert(tctx, ok, "Failed to parse target server");
+
+ talloc_set_destructor(test_context, test_context_destructor);
+
+ set_sockaddr_port(test_context->server->ai_addr, 88);
+
+ k5ret = krb5_set_send_to_kdc_func((*smb_krb5_context)->krb5_context,
+ smb_krb5_send_and_recv_func_canon_override,
+ test_context);
+ torture_assert_int_equal(tctx, k5ret, 0, "krb5_set_send_to_kdc_func failed");
+ return true;
+}
+
+
+static bool torture_krb5_as_req_canon(struct torture_context *tctx, const void *tcase_data)
+{
+ krb5_error_code k5ret;
+ krb5_get_init_creds_opt *krb_options = NULL;
+ struct test_data *test_data = talloc_get_type_abort(tcase_data, struct test_data);
+ char *realm;
+ char *upper_real_realm;
+ char *username;
+ krb5_principal principal;
+ krb5_principal expected_principal;
+ char *principal_string;
+ int principal_flags;
+ char *expected_principal_string;
+ int expected_principal_flags;
+ char *got_principal_string;
+ char *assertion_message;
+ const char *password = cli_credentials_get_password(cmdline_credentials);
+ struct smb_krb5_context *smb_krb5_context;
+ bool ok;
+ krb5_creds my_creds;
+
+ ok = torture_krb5_init_context_canon(tctx, test_data, &smb_krb5_context);
+ torture_assert(tctx, ok, "torture_krb5_init_context failed");
+
+ if (test_data->upper_realm) {
+ realm = strupper_talloc(test_data, test_data->realm);
+ } else {
+ realm = strlower_talloc(test_data, test_data->realm);
+ }
+ if (test_data->upper_username) {
+ username = strupper_talloc(test_data, test_data->username);
+ } else {
+ username = talloc_strdup(test_data, test_data->username);
+ }
+
+ principal_string = talloc_asprintf(test_data, "%s@%s", username, realm);
+
+ upper_real_realm = strupper_talloc(test_data, test_data->real_realm);
+
+ /*
+ * If we are set to canonicalize, we get back the fixed UPPER
+ * case realm, and the real username (ie matching LDAP
+ * samAccountName)
+ *
+ * Otherwise, if we are set to enterprise, we
+ * get back the whole principal as-sent
+ *
+ * Finally, if we are not set to canonicalize, we get back the
+ * fixed UPPER case realm, but the as-sent username
+ */
+ if (test_data->canonicalize) {
+ expected_principal_string = talloc_asprintf(test_data, "%s@%s", test_data->username, upper_real_realm);
+ } else if (test_data->enterprise) {
+ expected_principal_string = principal_string;
+ } else {
+ expected_principal_string = talloc_asprintf(test_data, "%s@%s", username, upper_real_realm);
+ }
+
+ if (test_data->enterprise) {
+ principal_flags = KRB5_PRINCIPAL_PARSE_ENTERPRISE;
+ } else {
+ principal_flags = 0;
+ }
+
+ if (test_data->canonicalize) {
+ expected_principal_flags = 0;
+ } else {
+ expected_principal_flags = principal_flags;
+ }
+
+ torture_assert_int_equal(tctx,
+ krb5_parse_name_flags(smb_krb5_context->krb5_context,
+ principal_string,
+ principal_flags,
+ &principal),
+ 0, "krb5_parse_name_flags failed");
+ torture_assert_int_equal(tctx,
+ krb5_parse_name_flags(smb_krb5_context->krb5_context,
+ expected_principal_string,
+ expected_principal_flags,
+ &expected_principal),
+ 0, "krb5_parse_name_flags failed");
+
+ /*
+ * Set the canonicalize flag if this test requires it
+ */
+ torture_assert_int_equal(tctx,
+ krb5_get_init_creds_opt_alloc(smb_krb5_context->krb5_context, &krb_options),
+ 0, "krb5_get_init_creds_opt_alloc failed");
+
+ torture_assert_int_equal(tctx,
+ krb5_get_init_creds_opt_set_canonicalize(smb_krb5_context->krb5_context, krb_options, test_data->canonicalize),
+ 0, "krb5_get_init_creds_opt_set_canonicalize failed");
+
+ k5ret = krb5_get_init_creds_password(smb_krb5_context->krb5_context, &my_creds, principal,
+ password, NULL, NULL, 0,
+ NULL, krb_options);
+ krb5_get_init_creds_opt_free(smb_krb5_context->krb5_context, krb_options);
+
+ assertion_message = talloc_asprintf(tctx,
+ "krb5_get_init_creds_password for %s failed: %s",
+ principal_string,
+ smb_get_krb5_error_message(smb_krb5_context->krb5_context, k5ret, tctx));
+ torture_assert_int_equal(tctx, k5ret, 0, assertion_message);
+
+ /*
+ * Assert that the reply was with the correct type of
+ * principal, depending on the flags we set
+ */
+ if (test_data->canonicalize == false && test_data->enterprise) {
+ torture_assert_int_equal(tctx,
+ krb5_principal_get_type(smb_krb5_context->krb5_context,
+ my_creds.client), KRB5_NT_ENTERPRISE_PRINCIPAL,
+ "smb_krb5_init_context gave incorrect client->name.name_type");
+ } else {
+ torture_assert_int_equal(tctx,
+ krb5_principal_get_type(smb_krb5_context->krb5_context,
+ my_creds.client), KRB5_NT_PRINCIPAL,
+ "smb_krb5_init_context gave incorrect client->name.name_type");
+ }
+
+ torture_assert_int_equal(tctx,
+ krb5_unparse_name(smb_krb5_context->krb5_context,
+ my_creds.client, &got_principal_string), 0,
+ "krb5_unparse_name failed");
+
+ assertion_message = talloc_asprintf(tctx,
+ "krb5_get_init_creds_password returned a different principal %s to what was expected %s",
+ got_principal_string, expected_principal_string);
+ krb5_free_unparsed_name(smb_krb5_context->krb5_context, got_principal_string);
+
+ torture_assert(tctx, krb5_principal_compare(smb_krb5_context->krb5_context,
+ my_creds.client, expected_principal),
+ assertion_message);
+
+ torture_assert_int_equal(tctx,
+ krb5_principal_get_type(smb_krb5_context->krb5_context,
+ my_creds.server), KRB5_NT_SRV_INST,
+ "smb_krb5_init_context gave incorrect client->name.name_type");
+
+ torture_assert_str_equal(tctx, krb5_principal_get_comp_string(smb_krb5_context->krb5_context,
+ my_creds.server, 0),
+ "krbtgt",
+ "smb_krb5_init_context gave incorrect my_creds.server->name.name_string[0]");
+
+ krb5_free_principal(smb_krb5_context->krb5_context, principal);
+
+ k5ret = krb5_free_cred_contents(smb_krb5_context->krb5_context, &my_creds);
+ torture_assert_int_equal(tctx, k5ret, 0, "krb5_free_creds failed");
+
+ return true;
+}
+
+struct torture_suite *torture_krb5_canon(TALLOC_CTX *mem_ctx)
+{
+ unsigned int i;
+ struct torture_suite *suite = torture_suite_create(mem_ctx, "canon");
+ suite->description = talloc_strdup(suite, "Kerberos Canonicalisation tests");
+
+ for (i = 0; i < TEST_ALL; i++) {
+ char *name = talloc_asprintf(suite, "%s.%s.%s.%s.%s",
+ (i & TEST_CANONICALIZE) ? "canon" : "no-canon",
+ (i & TEST_ENTERPRISE) ? "enterprise" : "no-enterprise",
+ (i & TEST_UPPER_REALM) ? "uc-realm" : "lc-realm",
+ (i & TEST_UPPER_USERNAME) ? "uc-user" : "lc-user",
+ (i & TEST_NETBIOS_REALM) ? "netbios-realm" : "krb5-realm");
+
+ struct test_data *test_data = talloc(suite, struct test_data);
+ if (i & TEST_NETBIOS_REALM) {
+ test_data->realm = cli_credentials_get_domain(cmdline_credentials);
+ } else {
+ test_data->realm = cli_credentials_get_realm(cmdline_credentials);
+ }
+ test_data->real_realm = cli_credentials_get_realm(cmdline_credentials);
+ test_data->username = cli_credentials_get_username(cmdline_credentials);
+ test_data->canonicalize = (i & TEST_CANONICALIZE) != 0;
+ test_data->enterprise = (i & TEST_ENTERPRISE) != 0;
+ test_data->upper_realm = (i & TEST_UPPER_REALM) != 0;
+ test_data->upper_username = (i & TEST_UPPER_USERNAME) != 0;
+ torture_suite_add_simple_tcase_const(suite, name, torture_krb5_as_req_canon,
+ test_data);
+
+ }
+ return suite;
+}
git.samba.org / ambi / samba-autobuild / .git / commitdiff