qemu/tests/qtest/tpm-tests.c
Peter Maydell d2304612b5 tests/qtest/tpm-tests: Remove unnecessary NULL checks
Coverity points out that in tpm_test_swtpm_migration_test() we
assume that src_tpm_addr and dst_tpm_addr are non-NULL (we
pass them to tpm_util_migration_start_qemu() which will
unconditionally dereference them) but then later explicitly
check them for NULL. Remove the pointless checks.

Fixes: Coverity CID 1432367, 1432359

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-id: 20210525134458.6675-6-peter.maydell@linaro.org
2021-06-03 16:43:27 +01:00

133 lines
3.9 KiB
C

/*
* QTest TPM commont test code
*
* Copyright (c) 2018 IBM Corporation
* Copyright (c) 2018 Red Hat, Inc.
*
* Authors:
* Stefan Berger <stefanb@linux.vnet.ibm.com>
* Marc-André Lureau <marcandre.lureau@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib/gstdio.h>
#include "libqtest-single.h"
#include "tpm-tests.h"
static bool
tpm_test_swtpm_skip(void)
{
if (!tpm_util_swtpm_has_tpm2()) {
g_test_skip("swtpm not in PATH or missing --tpm2 support");
return true;
}
return false;
}
void tpm_test_swtpm_test(const char *src_tpm_path, tx_func *tx,
const char *ifmodel, const char *machine_options)
{
char *args = NULL;
QTestState *s;
SocketAddress *addr = NULL;
gboolean succ;
GPid swtpm_pid;
GError *error = NULL;
if (tpm_test_swtpm_skip()) {
return;
}
succ = tpm_util_swtpm_start(src_tpm_path, &swtpm_pid, &addr, &error);
g_assert_true(succ);
args = g_strdup_printf(
"%s "
"-chardev socket,id=chr,path=%s "
"-tpmdev emulator,id=dev,chardev=chr "
"-device %s,tpmdev=dev",
machine_options ? : "", addr->u.q_unix.path, ifmodel);
s = qtest_start(args);
g_free(args);
tpm_util_startup(s, tx);
tpm_util_pcrextend(s, tx);
static const unsigned char tpm_pcrread_resp[] =
"\x80\x01\x00\x00\x00\x3e\x00\x00\x00\x00\x00\x00\x00\x16\x00\x00"
"\x00\x01\x00\x0b\x03\x00\x04\x00\x00\x00\x00\x01\x00\x20\xf6\x85"
"\x98\xe5\x86\x8d\xe6\x8b\x97\x29\x99\x60\xf2\x71\x7d\x17\x67\x89"
"\xa4\x2f\x9a\xae\xa8\xc7\xb7\xaa\x79\xa8\x62\x56\xc1\xde";
tpm_util_pcrread(s, tx, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
qtest_end();
tpm_util_swtpm_kill(swtpm_pid);
g_unlink(addr->u.q_unix.path);
qapi_free_SocketAddress(addr);
}
void tpm_test_swtpm_migration_test(const char *src_tpm_path,
const char *dst_tpm_path,
const char *uri, tx_func *tx,
const char *ifmodel,
const char *machine_options)
{
gboolean succ;
GPid src_tpm_pid, dst_tpm_pid;
SocketAddress *src_tpm_addr = NULL, *dst_tpm_addr = NULL;
GError *error = NULL;
QTestState *src_qemu, *dst_qemu;
if (tpm_test_swtpm_skip()) {
return;
}
succ = tpm_util_swtpm_start(src_tpm_path, &src_tpm_pid,
&src_tpm_addr, &error);
g_assert_true(succ);
succ = tpm_util_swtpm_start(dst_tpm_path, &dst_tpm_pid,
&dst_tpm_addr, &error);
g_assert_true(succ);
tpm_util_migration_start_qemu(&src_qemu, &dst_qemu,
src_tpm_addr, dst_tpm_addr, uri,
ifmodel, machine_options);
tpm_util_startup(src_qemu, tx);
tpm_util_pcrextend(src_qemu, tx);
static const unsigned char tpm_pcrread_resp[] =
"\x80\x01\x00\x00\x00\x3e\x00\x00\x00\x00\x00\x00\x00\x16\x00\x00"
"\x00\x01\x00\x0b\x03\x00\x04\x00\x00\x00\x00\x01\x00\x20\xf6\x85"
"\x98\xe5\x86\x8d\xe6\x8b\x97\x29\x99\x60\xf2\x71\x7d\x17\x67\x89"
"\xa4\x2f\x9a\xae\xa8\xc7\xb7\xaa\x79\xa8\x62\x56\xc1\xde";
tpm_util_pcrread(src_qemu, tx, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
tpm_util_migrate(src_qemu, uri);
tpm_util_wait_for_migration_complete(src_qemu);
tpm_util_pcrread(dst_qemu, tx, tpm_pcrread_resp,
sizeof(tpm_pcrread_resp));
qtest_quit(dst_qemu);
qtest_quit(src_qemu);
tpm_util_swtpm_kill(dst_tpm_pid);
g_unlink(dst_tpm_addr->u.q_unix.path);
qapi_free_SocketAddress(dst_tpm_addr);
tpm_util_swtpm_kill(src_tpm_pid);
g_unlink(src_tpm_addr->u.q_unix.path);
qapi_free_SocketAddress(src_tpm_addr);
}