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authorStefan Berger <stefanb@linux.vnet.ibm.com>2018-02-15 08:53:56 -0500
committerStefan Berger <stefanb@linux.vnet.ibm.com>2018-02-21 07:24:50 -0500
commit0e6ca9547bd4f2735fa2b20f103a7aecd38e0abd (patch)
tree0f6ffbe16fe1843404b2d0495f71f4f8509adc93 /tests/tpm-emu.c
parenta6e0344fa0e09413324835ae122c4cadd7890231 (diff)
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tests: Move common TPM test code into tpm-emu.c
Move threads and other common TPM test code into tpm-emu.c. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Diffstat (limited to 'tests/tpm-emu.c')
-rw-r--r--tests/tpm-emu.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/tests/tpm-emu.c b/tests/tpm-emu.c
new file mode 100644
index 0000000..cbb92af
--- /dev/null
+++ b/tests/tpm-emu.c
@@ -0,0 +1,167 @@
+/*
+ * Minimal TPM emulator for TPM test cases
+ *
+ * Copyright (c) 2018 Red Hat, Inc.
+ *
+ * Authors:
+ * 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 "hw/tpm/tpm_ioctl.h"
+#include "io/channel-socket.h"
+#include "qapi/error.h"
+#include "tpm-emu.h"
+
+void tpm_emu_test_wait_cond(TestState *s)
+{
+ gint64 end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;
+
+ g_mutex_lock(&s->data_mutex);
+ if (!g_cond_wait_until(&s->data_cond, &s->data_mutex, end_time)) {
+ g_assert_not_reached();
+ }
+ g_mutex_unlock(&s->data_mutex);
+}
+
+static void *tpm_emu_tpm_thread(void *data)
+{
+ TestState *s = data;
+ QIOChannel *ioc = s->tpm_ioc;
+
+ s->tpm_msg = g_new(struct tpm_hdr, 1);
+ while (true) {
+ int minhlen = sizeof(s->tpm_msg->tag) + sizeof(s->tpm_msg->len);
+
+ if (!qio_channel_read(ioc, (char *)s->tpm_msg, minhlen, &error_abort)) {
+ break;
+ }
+ s->tpm_msg->tag = be16_to_cpu(s->tpm_msg->tag);
+ s->tpm_msg->len = be32_to_cpu(s->tpm_msg->len);
+ g_assert_cmpint(s->tpm_msg->len, >=, minhlen);
+ g_assert_cmpint(s->tpm_msg->tag, ==, TPM2_ST_NO_SESSIONS);
+
+ s->tpm_msg = g_realloc(s->tpm_msg, s->tpm_msg->len);
+ qio_channel_read(ioc, (char *)&s->tpm_msg->code,
+ s->tpm_msg->len - minhlen, &error_abort);
+ s->tpm_msg->code = be32_to_cpu(s->tpm_msg->code);
+
+ /* reply error */
+ s->tpm_msg->tag = cpu_to_be16(TPM2_ST_NO_SESSIONS);
+ s->tpm_msg->len = cpu_to_be32(sizeof(struct tpm_hdr));
+ s->tpm_msg->code = cpu_to_be32(TPM_RC_FAILURE);
+ qio_channel_write(ioc, (char *)s->tpm_msg, be32_to_cpu(s->tpm_msg->len),
+ &error_abort);
+ }
+
+ g_free(s->tpm_msg);
+ s->tpm_msg = NULL;
+ object_unref(OBJECT(s->tpm_ioc));
+ return NULL;
+}
+
+void *tpm_emu_ctrl_thread(void *data)
+{
+ TestState *s = data;
+ QIOChannelSocket *lioc = qio_channel_socket_new();
+ QIOChannel *ioc;
+
+ qio_channel_socket_listen_sync(lioc, s->addr, &error_abort);
+ g_cond_signal(&s->data_cond);
+
+ qio_channel_wait(QIO_CHANNEL(lioc), G_IO_IN);
+ ioc = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort));
+ g_assert(ioc);
+
+ {
+ uint32_t cmd = 0;
+ struct iovec iov = { .iov_base = &cmd, .iov_len = sizeof(cmd) };
+ int *pfd = NULL;
+ size_t nfd = 0;
+
+ qio_channel_readv_full(ioc, &iov, 1, &pfd, &nfd, &error_abort);
+ cmd = be32_to_cpu(cmd);
+ g_assert_cmpint(cmd, ==, CMD_SET_DATAFD);
+ g_assert_cmpint(nfd, ==, 1);
+ s->tpm_ioc = QIO_CHANNEL(qio_channel_socket_new_fd(*pfd, &error_abort));
+ g_free(pfd);
+
+ cmd = 0;
+ qio_channel_write(ioc, (char *)&cmd, sizeof(cmd), &error_abort);
+
+ s->emu_tpm_thread = g_thread_new(NULL, tpm_emu_tpm_thread, s);
+ }
+
+ while (true) {
+ uint32_t cmd;
+ ssize_t ret;
+
+ ret = qio_channel_read(ioc, (char *)&cmd, sizeof(cmd), NULL);
+ if (ret <= 0) {
+ break;
+ }
+
+ cmd = be32_to_cpu(cmd);
+ switch (cmd) {
+ case CMD_GET_CAPABILITY: {
+ ptm_cap cap = cpu_to_be64(0x3fff);
+ qio_channel_write(ioc, (char *)&cap, sizeof(cap), &error_abort);
+ break;
+ }
+ case CMD_INIT: {
+ ptm_init init;
+ qio_channel_read(ioc, (char *)&init.u.req, sizeof(init.u.req),
+ &error_abort);
+ init.u.resp.tpm_result = 0;
+ qio_channel_write(ioc, (char *)&init.u.resp, sizeof(init.u.resp),
+ &error_abort);
+ break;
+ }
+ case CMD_SHUTDOWN: {
+ ptm_res res = 0;
+ qio_channel_write(ioc, (char *)&res, sizeof(res), &error_abort);
+ qio_channel_close(s->tpm_ioc, &error_abort);
+ g_thread_join(s->emu_tpm_thread);
+ break;
+ }
+ case CMD_STOP: {
+ ptm_res res = 0;
+ qio_channel_write(ioc, (char *)&res, sizeof(res), &error_abort);
+ break;
+ }
+ case CMD_SET_BUFFERSIZE: {
+ ptm_setbuffersize sbs;
+ qio_channel_read(ioc, (char *)&sbs.u.req, sizeof(sbs.u.req),
+ &error_abort);
+ sbs.u.resp.buffersize = sbs.u.req.buffersize ?: cpu_to_be32(4096);
+ sbs.u.resp.tpm_result = 0;
+ sbs.u.resp.minsize = cpu_to_be32(128);
+ sbs.u.resp.maxsize = cpu_to_be32(4096);
+ qio_channel_write(ioc, (char *)&sbs.u.resp, sizeof(sbs.u.resp),
+ &error_abort);
+ break;
+ }
+ case CMD_SET_LOCALITY: {
+ ptm_loc loc;
+ /* Note: this time it's not u.req / u.resp... */
+ qio_channel_read(ioc, (char *)&loc, sizeof(loc), &error_abort);
+ g_assert_cmpint(loc.u.req.loc, ==, 0);
+ loc.u.resp.tpm_result = 0;
+ qio_channel_write(ioc, (char *)&loc, sizeof(loc), &error_abort);
+ break;
+ }
+ default:
+ g_debug("unimplemented %u", cmd);
+ g_assert_not_reached();
+ }
+ }
+
+ object_unref(OBJECT(ioc));
+ object_unref(OBJECT(lioc));
+ return NULL;
+}