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/*
Unix SMB/CIFS implementation.
SMB torture tester
Copyright (C) Stefan Metzmacher 2007
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2012
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 "torture/smbtorture.h"
#include "torture/winbind/proto.h"
#include "auth/auth.h"
#include "auth/auth_sam_reply.h"
#include "auth/gensec/gensec.h"
#include "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
#include "auth/credentials/credentials.h"
#include "param/param.h"
#include "lib/cmdline/popt_common.h"
struct pac_data {
DATA_BLOB pac_blob;
};
/* A helper function which avoids touching the local databases to
* generate the session info, as we just want to verify the PAC
* details, not the full local token */
static NTSTATUS test_generate_session_info_pac(struct auth4_context *auth_ctx,
TALLOC_CTX *mem_ctx,
struct smb_krb5_context *smb_krb5_context,
DATA_BLOB *pac_blob,
const char *principal_name,
const struct tsocket_address *remote_address,
uint32_t session_info_flags,
struct auth_session_info **session_info)
{
NTSTATUS nt_status;
struct auth_user_info_dc *user_info_dc;
TALLOC_CTX *tmp_ctx;
struct pac_data *pac_data;
tmp_ctx = talloc_named(mem_ctx, 0, "gensec_gssapi_session_info context");
NT_STATUS_HAVE_NO_MEMORY(tmp_ctx);
auth_ctx->private_data = pac_data = talloc_zero(auth_ctx, struct pac_data);
pac_data->pac_blob = *pac_blob;
talloc_steal(pac_data, pac_data->pac_blob.data);
nt_status = kerberos_pac_blob_to_user_info_dc(tmp_ctx,
*pac_blob,
smb_krb5_context->krb5_context,
&user_info_dc,
NULL, NULL);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return nt_status;
}
if (user_info_dc->info->authenticated) {
session_info_flags |= AUTH_SESSION_INFO_AUTHENTICATED;
}
session_info_flags |= AUTH_SESSION_INFO_SIMPLE_PRIVILEGES;
nt_status = auth_generate_session_info(mem_ctx,
NULL,
NULL,
user_info_dc, session_info_flags,
session_info);
if (!NT_STATUS_IS_OK(nt_status)) {
talloc_free(tmp_ctx);
return nt_status;
}
talloc_free(tmp_ctx);
return nt_status;
}
/* Check to see if we can pass the PAC across to the NETLOGON server for validation */
/* Also happens to be a really good one-step verfication of our Kerberos stack */
static bool torture_winbind_pac(struct torture_context *tctx)
{
NTSTATUS status;
struct gensec_security *gensec_client_context;
struct gensec_security *gensec_server_context;
DATA_BLOB client_to_server, server_to_client;
struct auth4_context *auth_context;
struct auth_session_info *session_info;
struct pac_data *pac_data;
TALLOC_CTX *tmp_ctx = talloc_new(tctx);
torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
auth_context = talloc_zero(tmp_ctx, struct auth4_context);
torture_assert(tctx, auth_context != NULL, "talloc_new() failed");
auth_context->generate_session_info_pac = test_generate_session_info_pac;
status = gensec_client_start(tctx, &gensec_client_context,
lpcfg_gensec_settings(tctx, tctx->lp_ctx));
torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
status = gensec_set_target_hostname(gensec_client_context, cli_credentials_get_workstation(cmdline_credentials));
status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
status = gensec_server_start(tctx,
lpcfg_gensec_settings(tctx, tctx->lp_ctx),
auth_context, &gensec_server_context);
torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
status = gensec_set_credentials(gensec_server_context, cmdline_credentials);
torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
server_to_client = data_blob(NULL, 0);
do {
/* Do a client-server update dance */
status = gensec_update(gensec_client_context, tmp_ctx, tctx->ev, server_to_client, &client_to_server);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
}
status = gensec_update(gensec_server_context, tmp_ctx, tctx->ev, client_to_server, &server_to_client);
if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
}
if (NT_STATUS_IS_OK(status)) {
break;
}
} while (1);
/* Extract the PAC using Samba's code */
status = gensec_session_info(gensec_server_context, gensec_server_context, &session_info);
torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
pac_data = talloc_get_type(auth_context->private_data, struct pac_data);
torture_assert(tctx, pac_data != NULL, "gensec_update failed to fill in pac_data in auth_context");
torture_assert(tctx, pac_data->pac_blob.data != NULL, "pac_blob not present");
/* TODO: Check the PAC blob with winbind */
return true;
}
NTSTATUS torture_winbind_init(void)
{
struct torture_suite *suite = torture_suite_create(talloc_autofree_context(), "winbind");
torture_suite_add_suite(suite, torture_winbind_struct_init());
torture_suite_add_suite(suite, torture_wbclient());
torture_suite_add_simple_test(suite,
"pac", torture_winbind_pac);
suite->description = talloc_strdup(suite, "WINBIND tests");
torture_register_suite(suite);
return NT_STATUS_OK;
}
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