xref: /openbmc/qemu/tests/qtest/tpm-emu.h (revision 4921d0a7)
1 /*
2  * Minimal TPM emulator for TPM test cases
3  *
4  * Copyright (c) 2018 Red Hat, Inc.
5  *
6  * Authors:
7  *   Marc-André Lureau <marcandre.lureau@redhat.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
10  * See the COPYING file in the top-level directory.
11  */
12 
13 #ifndef TESTS_TPM_EMU_H
14 #define TESTS_TPM_EMU_H
15 
16 #define TPM_RC_FAILURE 0x101
17 #define TPM2_ST_NO_SESSIONS 0x8001
18 
19 #define TPM_FAIL 9
20 #define TPM_TAG_RSP_COMMAND 0xc4
21 
22 #include "qemu/sockets.h"
23 #include "io/channel.h"
24 #include "sysemu/tpm.h"
25 #include "libqtest.h"
26 
27 struct tpm_hdr {
28     uint16_t tag;
29     uint32_t len;
30     uint32_t code; /*ordinal/error */
31     char buffer[];
32 } QEMU_PACKED;
33 
34 #ifndef CONFIG_TPM
35 enum TPMVersion {
36     TPM_VERSION_1_2 = 1,
37     TPM_VERSION_2_0 = 2,
38 };
39 #endif
40 
41 typedef struct TPMTestState {
42     GMutex data_mutex;
43     GCond data_cond;
44     bool data_cond_signal;
45     SocketAddress *addr;
46     QIOChannel *tpm_ioc;
47     GThread *emu_tpm_thread;
48     struct tpm_hdr *tpm_msg;
49     enum TPMVersion tpm_version;
50 } TPMTestState;
51 
52 void tpm_emu_test_wait_cond(TPMTestState *s);
53 void *tpm_emu_ctrl_thread(void *data);
54 bool tpm_model_is_available(const char *args, const char *tpm_if);
55 
56 #endif /* TESTS_TPM_EMU_H */
57