ta/os_test/os_test.c

// SPDX-License-Identifier: BSD-2-Clause
/*
 * Copyright (c) 2014, STMicroelectronics International N.V.
 * All rights reserved.
 * Copyright (c) 2022, Linaro Limited.
 */
#include <compiler.h>
#include <dlfcn.h>
#include <link.h>
#include <memtag.h>
#include <setjmp.h>
#include <stdint.h>
#include <string.h>
#include <ta_crypt.h>
#include <ta_os_test.h>
#include <tee_internal_api_extensions.h>

#include "os_test.h"
#include "test_float_subj.h"
#include "os_test_lib.h"

#define STATS_UUID \
	{ 0xd96a5b40, 0xe2c7, 0xb1af, \
		{ 0x87, 0x94, 0x10, 0x02, 0xa5, 0xd5, 0xc6, 0x1b } }

#define STATS_CMD_PAGER_STATS		0

#define PAGER_PAGE_COUNT_THRESHOLD	((128 * 1024) / 4096)

enum p_type {
	P_TYPE_BOOL,
	P_TYPE_INT,
	P_TYPE_UUID,
	P_TYPE_IDENTITY,
	P_TYPE_STRING,
	P_TYPE_BINARY_BLOCK,
};

struct p_attr {
	const char *str;
	enum p_type type;
	bool retrieved;
};

static TEE_Result check_returned_prop(
		int line __maybe_unused, char *prop_name __maybe_unused,
		TEE_Result return_res, TEE_Result expected_res,
		uint32_t return_len, uint32_t expected_len)
{
	if (return_res != expected_res) {
		EMSG("From line %d (property name=%s): return_res=0x%x  vs  expected_res=0x%x",
		     line, (prop_name ? prop_name : "unknown"),
		     (unsigned int)return_res, (unsigned int)expected_res);
		return TEE_ERROR_GENERIC;
	}
	if (return_len != expected_len) {
		EMSG("From line %d (property name=%s): return_len=%u  vs  expected_res=%u",
		     line, (prop_name ? prop_name : "unknown"),
		     return_len, expected_len);
		return TEE_ERROR_GENERIC;
	}
	return TEE_SUCCESS;
}

static TEE_Result check_binprop_ones(size_t size, char *bbuf, size_t bblen)
{
	char ones[4] = { 0xff, 0xff, 0xff, 0xff };

	if (size > 4 || bblen != size) {
		EMSG("Size error (size=%zu, bblen=%zu)", size, bblen);
		return TEE_ERROR_GENERIC;
	}
	if (strncmp(bbuf, ones, bblen)) {
		EMSG("Unexpected content");
		DHEXDUMP(bbuf, bblen);
		return TEE_ERROR_GENERIC;
	}
	return TEE_SUCCESS;
}

static TEE_Result get_binblock_property(TEE_PropSetHandle h,
					char *nbuf __unused, char **bbuf, size_t *bblen)
{
	TEE_Result res = TEE_ERROR_GENERIC;
	size_t block_len = 0;

	*bbuf = NULL;
	*bblen = 0;
	res = TEE_GetPropertyAsBinaryBlock(h, NULL, *bbuf, &block_len);

	if (res == TEE_SUCCESS && !block_len)
		return TEE_SUCCESS;

	if (res != TEE_ERROR_SHORT_BUFFER) {
		EMSG("TEE_GetPropertyAsBinaryBlock() size query returned 0x%x",
		     (unsigned int)res);
		return res ? res : TEE_ERROR_GENERIC;
	}

	*bbuf = TEE_Malloc(block_len, TEE_MALLOC_FILL_ZERO);
	if (!bbuf)
		return TEE_ERROR_OUT_OF_MEMORY;

	res = TEE_GetPropertyAsBinaryBlock(h, NULL, *bbuf, &block_len);
	if (res != TEE_SUCCESS)
		EMSG("TEE_GetPropertyAsBinaryBlock(\"%s\") returned 0x%x",
		     nbuf, (unsigned int)res);
	else
		*bblen = block_len;

	return res;
}

static TEE_Result print_properties(TEE_PropSetHandle h,
				   TEE_PropSetHandle prop_set,
				   struct p_attr *p_attrs, size_t num_p_attrs)
{
	TEE_Result res = TEE_ERROR_GENERIC;
	size_t n = 0;

	TEE_StartPropertyEnumerator(h, prop_set);

	while (true) {
		char nbuf[256] = { };
		char nbuf_small[256] = { };
		char vbuf[256] = { };
		char vbuf2[256] = { };
		size_t nblen = sizeof(nbuf);
		size_t nblen_small = 0;
		size_t vblen = sizeof(vbuf);
		size_t vblen2 = sizeof(vbuf2);
		char *bbuf = NULL;
		size_t bblen = 0;

		res = TEE_GetPropertyName(h, nbuf, &nblen);
		if (res != TEE_SUCCESS) {
			EMSG("TEE_GetPropertyName returned 0x%x\n",
			     (unsigned int)res);
			return res;
		}
		if (nblen != strlen(nbuf) + 1) {
			EMSG("Name has wrong size: %zu vs %zu",
			     nblen, strlen(nbuf) + 1);
			return TEE_ERROR_GENERIC;
		}

		/* Get the property name with a very small buffer */
		nblen_small = 2;
		res = TEE_GetPropertyName(h, nbuf_small, &nblen_small);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_ERROR_SHORT_BUFFER,
					  nblen_small, nblen);
		if (res != TEE_SUCCESS)
			return res;

		/* Get the property name with almost the correct buffer */
		nblen_small = nblen - 1;
		res = TEE_GetPropertyName(h, nbuf_small, &nblen_small);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_ERROR_SHORT_BUFFER,
					  nblen_small, nblen);
		if (res != TEE_SUCCESS)
			return res;

		/* Get the property name with the exact buffer length */
		nblen_small = nblen;
		res = TEE_GetPropertyName(h, nbuf_small, &nblen_small);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_SUCCESS,
					  nblen_small, nblen);
		if (res != TEE_SUCCESS)
			return res;

		/* Get the property value */
		res = TEE_GetPropertyAsString(h, NULL, vbuf, &vblen);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_SUCCESS,
					  vblen, strlen(vbuf) + 1);
		if (res != TEE_SUCCESS)
			return res;

		res = TEE_GetPropertyAsString(prop_set, nbuf, vbuf2, &vblen2);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_SUCCESS,
					  vblen2, strlen(vbuf2) + 1);
		if (res != TEE_SUCCESS)
			return res;

		if (strcmp(vbuf, vbuf2) != 0) {
			EMSG("String of \"%s\" differs\n", nbuf);
			return TEE_ERROR_GENERIC;
		}

		/* Get the property with a very small buffer */
		if (vblen > 1) {
			vblen2 = 1;
			res = TEE_GetPropertyAsString(prop_set, nbuf, vbuf2, &vblen2);
			res = check_returned_prop(__LINE__, nbuf, res,
						  TEE_ERROR_SHORT_BUFFER,
						  vblen2, vblen);
			if (res != TEE_SUCCESS)
				return res;
		}

		/* Get the property with almost the correct buffer */
		vblen2 = vblen - 1;
		res = TEE_GetPropertyAsString(prop_set, nbuf, vbuf2, &vblen2);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_ERROR_SHORT_BUFFER,
					  vblen2, vblen);
		if (res != TEE_SUCCESS)
			return res;

		/* Get the property name with the exact buffer length */
		vblen2 = vblen;
		res = TEE_GetPropertyAsString(prop_set, nbuf, vbuf2, &vblen2);
		res = check_returned_prop(__LINE__, nbuf, res, TEE_SUCCESS, vblen2, vblen);
		if (res != TEE_SUCCESS)
			return res;

		/* check specific myprop.hello property, which is larger than 80 */
		if (!strcmp("myprop.hello", nbuf) &&
		    vblen2 != 1 + strlen("hello property, larger than 80 characters, so that it checks that it is not truncated by anything in the source code which may be wrong")) {
			EMSG("TEE_GetPropertyAsString(\"%s\") is truncated - returned \"%s\"\n",
			     nbuf, vbuf);
			return TEE_ERROR_GENERIC;
		}

		DMSG("Found \"%s\" value \"%s\"\n", nbuf, vbuf);

		for (n = 0; n < num_p_attrs; n++) {
			if (strcmp(nbuf, p_attrs[n].str) != 0)
				continue;

			if (p_attrs[n].retrieved) {
				EMSG("Value \"%s\" already retrieved\n",
				     p_attrs[n].str);
				return TEE_ERROR_GENERIC;
			}
			p_attrs[n].retrieved = true;

			switch (p_attrs[n].type) {
			case P_TYPE_BOOL:
				{
					bool v = false;

					res =
					    TEE_GetPropertyAsBool(h, NULL, &v);
					if (res != TEE_SUCCESS) {
						EMSG(
						"TEE_GetPropertyAsBool(\"%s\") returned 0x%x\n",
						nbuf, (unsigned int)res);
						return res;
					}
				}
				break;

			case P_TYPE_INT:
				{
					uint32_t v = 0;

					res = TEE_GetPropertyAsU32(h, NULL, &v);
					if (res != TEE_SUCCESS) {
						EMSG(
						"TEE_GetPropertyAsU32(\"%s\") returned 0x%x\n",
						nbuf, (unsigned int)res);
						return res;
					}
				}
				break;

			case P_TYPE_UUID:
				{
					TEE_UUID v = { };

					res =
					    TEE_GetPropertyAsUUID(h, NULL, &v);
					if (res != TEE_SUCCESS) {
						EMSG(
						"TEE_GetPropertyAsUUID(\"%s\") returned 0x%x\n",
						nbuf, (unsigned int)res);
						return res;
					}
				}
				break;

			case P_TYPE_IDENTITY:
				{
					TEE_Identity v = { };

					res =
					    TEE_GetPropertyAsIdentity(h, NULL,
								      &v);
					if (res != TEE_SUCCESS) {
						EMSG(
						"TEE_GetPropertyAsIdentity(\"%s\") returned 0x%x\n",
						nbuf, (unsigned int)res);
						return res;
					}
				}
				break;

			case P_TYPE_STRING:
				/* Already read as string */
				break;

			case P_TYPE_BINARY_BLOCK:
				res = get_binblock_property(h, nbuf, &bbuf, &bblen);
				if (res)
					return res;

				if (!strcmp("myprop.binaryblock", nbuf)) {
					const char exp_bin_value[] = "Hello world!";

					if (bblen != strlen(exp_bin_value) ||
					    TEE_MemCompare(exp_bin_value, bbuf,
							   bblen)) {
						EMSG("Binary buffer of \"%s\" differs from \"%s\"",
						     nbuf, exp_bin_value);
						EMSG("Got \"%s\"", bbuf);
						return TEE_ERROR_GENERIC;
					}
				} else if (!strcmp("myprop.binaryblock.1byte-ones",
						   nbuf)) {
					res = check_binprop_ones(1, bbuf, bblen);
					if (res)
						return res;
				} else if (!strcmp("myprop.binaryblock.2byte-ones",
						   nbuf)) {
					res = check_binprop_ones(2, bbuf, bblen);
					if (res)
						return res;
				} else if (!strcmp("myprop.binaryblock.3byte-ones",
						   nbuf)) {
					res = check_binprop_ones(3, bbuf, bblen);
					if (res)
						return res;
				} else if (!strcmp("myprop.binaryblock.4byte-ones",
						   nbuf)) {
					res = check_binprop_ones(4, bbuf, bblen);
					if (res)
						return res;
				} else if (!strcmp("myprop.binaryblock.empty1", nbuf) ||
					   !strcmp("myprop.binaryblock.empty2", nbuf) ||
					   !strcmp("myprop.binaryblock.empty3", nbuf)) {
					if (bblen) {
						EMSG("Property \"%s\": %zu byte(s)",
						     nbuf, bblen);
						return TEE_ERROR_GENERIC;
					}
				} else {
					EMSG("Unexpected property \"%s\"", nbuf);
					TEE_Panic(0);
				}

				TEE_Free(bbuf);
				break;

			default:
				EMSG("Unknown type (%d) for \"%s\"\n",
				     p_attrs[n].type, p_attrs[n].str);
				return TEE_ERROR_GENERIC;
			}
		}

		res = TEE_GetNextProperty(h);
		if (res != TEE_SUCCESS) {
			if (res == TEE_ERROR_ITEM_NOT_FOUND)
				return TEE_SUCCESS;
			return res;
		}
	}
}

static TEE_Result test_malloc(void)
{
	void *p = TEE_Malloc(4, 0);

	if (p == NULL) {
		EMSG("TEE_Malloc failed\n");
		return TEE_ERROR_OUT_OF_MEMORY;
	}
	TEE_Free(p);
	TEE_Free(NULL);

	return TEE_SUCCESS;
}

static TEE_Result test_properties(void)
{
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_PropSetHandle h = TEE_HANDLE_NULL;
	struct p_attr p_attrs[] = {
		{"gpd.ta.appID", P_TYPE_UUID},
		{"gpd.ta.singleInstance", P_TYPE_BOOL},
		{"gpd.ta.multiSession", P_TYPE_BOOL},
		{"gpd.ta.instanceKeepAlive", P_TYPE_BOOL},
		{"gpd.ta.dataSize", P_TYPE_INT},
		{"gpd.ta.stackSize", P_TYPE_INT},
		{"gpd.ta.version", P_TYPE_STRING},
		{"gpd.ta.description", P_TYPE_STRING},
		{"gpd.client.identity", P_TYPE_IDENTITY},
		{"gpd.tee.apiversion", P_TYPE_STRING},
		{"gpd.tee.description", P_TYPE_STRING},
		{"gpd.tee.deviceID", P_TYPE_UUID},
		{"gpd.tee.systemTime.protectionLevel", P_TYPE_INT},
		{"gpd.tee.TAPersistentTime.protectionLevel", P_TYPE_INT},
		{"gpd.tee.arith.maxBigIntSize", P_TYPE_INT},
		{"gpd.tee.cryptography.ecc", P_TYPE_BOOL},
		{"gpd.tee.trustedStorage.antiRollback.protectionLevel", P_TYPE_INT},
		{"gpd.tee.trustedos.implementation.version", P_TYPE_STRING},
		{"gpd.tee.trustedos.implementation.binaryversion", P_TYPE_INT},
		{"gpd.tee.trustedos.manufacturer", P_TYPE_STRING},
		{"gpd.tee.firmware.implementation.version", P_TYPE_STRING},
		{"gpd.tee.firmware.implementation.binaryversion", P_TYPE_INT},
		{"gpd.tee.firmware.manufacturer", P_TYPE_STRING},
		{"myprop.true", P_TYPE_BOOL},
		{"myprop.42", P_TYPE_INT},
		{"myprop.123", P_TYPE_UUID},
		{"myprop.1234", P_TYPE_IDENTITY},
		{"myprop.hello", P_TYPE_STRING},
		{"myprop.binaryblock", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.1byte-ones", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.2byte-ones", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.3byte-ones", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.4byte-ones", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.empty1", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.empty2", P_TYPE_BINARY_BLOCK},
		{"myprop.binaryblock.empty3", P_TYPE_BINARY_BLOCK},
	};
	const size_t num_p_attrs = sizeof(p_attrs) / sizeof(p_attrs[0]);
	size_t n = 0;

	res = TEE_AllocatePropertyEnumerator(&h);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_AllocatePropertyEnumerator: returned 0x%x\n",
		     (unsigned int)res);
		return TEE_ERROR_GENERIC;
	}

	printf("Getting properties for current TA\n");
	res = print_properties(h, TEE_PROPSET_CURRENT_TA, p_attrs, num_p_attrs);
	if (res != TEE_SUCCESS)
		goto cleanup_return;

	printf("Getting properties for current client\n");
	res = print_properties(h, TEE_PROPSET_CURRENT_CLIENT, p_attrs,
			       num_p_attrs);
	if (res != TEE_SUCCESS)
		goto cleanup_return;

	printf("Getting properties for implementation\n");
	res = print_properties(h, TEE_PROPSET_TEE_IMPLEMENTATION, p_attrs,
			       num_p_attrs);
	if (res != TEE_SUCCESS)
		goto cleanup_return;

	for (n = 0; n < num_p_attrs; n++) {
		if (!p_attrs[n].retrieved) {
			EMSG("\"%s\" not retrieved\n", p_attrs[n].str);
			res = TEE_ERROR_GENERIC;
			goto cleanup_return;
		}
	}

cleanup_return:
	TEE_FreePropertyEnumerator(h);
	return res;
}

static TEE_Result test_mem_access_right(uint32_t param_types,
					TEE_Param params[4])
{
	static const TEE_UUID test_uuid = TA_OS_TEST_UUID;
	TEE_Result res = TEE_ERROR_GENERIC;
	uint32_t ret_orig = 0;
	uint32_t l_pts = 0;
	TEE_Param l_params[4] = { };
	uint8_t buf[32] = { };
	TEE_TASessionHandle sess = TEE_HANDLE_NULL;
	TEE_UUID *uuid = NULL;

	if (param_types !=
	    TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT, 0, 0, 0))
		return TEE_ERROR_GENERIC;

	/* test access rights on memref parameter */
	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ |
					  TEE_MEMORY_ACCESS_ANY_OWNER,
					  params[0].memref.buffer,
					  params[0].memref.size);
	if (res != TEE_SUCCESS)
		return res;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ,
					  params[0].memref.buffer,
					  params[0].memref.size);
	if (res != TEE_ERROR_ACCESS_DENIED)
		return TEE_ERROR_GENERIC;

	/* test access rights on private read-only and read-write memory */
	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ,
					  (void *)&test_uuid, sizeof(test_uuid));
	if (res != TEE_SUCCESS)
		return res;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_WRITE,
					  (void *)&test_uuid, sizeof(test_uuid));
	if (res == TEE_SUCCESS)
		return TEE_ERROR_GENERIC;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ |
					  TEE_MEMORY_ACCESS_WRITE,
					  &ret_orig, sizeof(ret_orig));
	if (res != TEE_SUCCESS)
		return res;

	uuid = TEE_Malloc(sizeof(*uuid), 0);
	if (!uuid)
		return TEE_ERROR_OUT_OF_MEMORY;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ |
					  TEE_MEMORY_ACCESS_WRITE,
					  uuid, sizeof(*uuid));
	TEE_Free(uuid);
	if (res != TEE_SUCCESS)
		return res;

	/* test access rights on invalid memory (at least lower 256kB) */
	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ,
					  NULL, 1);
	if (res == TEE_SUCCESS)
		return TEE_ERROR_GENERIC;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ,
					  (void*)(256 * 1024), 1);
	if (res == TEE_SUCCESS)
		return TEE_ERROR_GENERIC;

	res = TEE_OpenTASession(&test_uuid, TEE_TIMEOUT_INFINITE, 0, NULL,
				&sess, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("test_mem_access_right: TEE_OpenTASession failed\n");
		goto cleanup_return;
	}

	l_pts = TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
				TEE_PARAM_TYPE_MEMREF_INPUT, 0, 0);
	l_params[0].memref.buffer = buf;
	l_params[0].memref.size = sizeof(buf);
	l_params[1].memref.buffer = NULL;
	l_params[1].memref.size = 0;
	res = TEE_InvokeTACommand(sess, TEE_TIMEOUT_INFINITE,
				  TA_OS_TEST_CMD_PARAMS_ACCESS,
				  l_pts, l_params, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("test_mem_access_right: TEE_InvokeTACommand failed\n");
		goto cleanup_return;
	}

cleanup_return:
	TEE_CloseTASession(sess);
	return res;
}

static TEE_Result test_time(void)
{
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_Time t = { };
	TEE_Time sys_t = { };
	static const TEE_Time null_time = { 0, 0 };
	static const TEE_Time wrap_time = { UINT32_MAX, 999 };

	TEE_GetSystemTime(&sys_t);
	printf("system time %u.%03u\n", (unsigned int)sys_t.seconds,
	       (unsigned int)sys_t.millis);

	TEE_GetREETime(&t);
	printf("REE time %u.%03u\n", (unsigned int)t.seconds,
	       (unsigned int)t.millis);

	res = TEE_GetTAPersistentTime(&t);
	switch (res) {
	case TEE_SUCCESS:
		printf("Stored TA time %u.%03u\n", (unsigned int)t.seconds,
		       (unsigned int)t.millis);
		break;
	case TEE_ERROR_OVERFLOW:
		EMSG("Stored TA time overflowed %u.%03u\n",
		     (unsigned int)t.seconds, (unsigned int)t.millis);
		break;
	case TEE_ERROR_TIME_NOT_SET:
		EMSG("TA time not stored\n");
		break;
	case TEE_ERROR_TIME_NEEDS_RESET:
		EMSG("TA time needs reset\n");
		break;
	default:
		return res;
	}

	res = TEE_SetTAPersistentTime(&null_time);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_SetTAPersistentTime: failed\n");
		return res;
	}

	res = TEE_GetTAPersistentTime(&t);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_GetTAPersistentTime null: failed\n");
		return res;
	}
	printf("TA time %u.%03u\n", (unsigned int)t.seconds,
	       (unsigned int)t.millis);
	/*
	 * The time between TEE_SetTAPersistentTime() and
	 * TEE_GetTAPersistentTime() should be much less than 1 second, in fact
	 * it's not even a millisecond.
	 */
	if (t.seconds > 1 || t.millis >= 1000) {
		EMSG("Unexpected stored TA time %u.%03u\n",
		     (unsigned int)t.seconds, (unsigned int)t.millis);
		return TEE_ERROR_BAD_STATE;
	}

	res = TEE_SetTAPersistentTime(&wrap_time);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_SetTAPersistentTime wrap: failed\n");
		return res;
	}

	res = TEE_Wait(1000);
	if (res != TEE_SUCCESS)
		EMSG("TEE_Wait wrap: failed\n");

	res = TEE_GetTAPersistentTime(&t);
	if (res != TEE_ERROR_OVERFLOW) {
		EMSG("TEE_GetTAPersistentTime: failed\n");
		return TEE_ERROR_BAD_STATE;
	}
	printf("TA time %u.%03u\n", (unsigned int)t.seconds,
	       (unsigned int)t.millis);

	if (t.seconds > 1) {
		EMSG("Unexpected wrapped time %u.%03u\n",
		     (unsigned int)t.seconds, (unsigned int)t.millis);
		return TEE_ERROR_BAD_STATE;
	}

	return TEE_SUCCESS;
}

#ifdef CFG_TA_FLOAT_SUPPORT
static bool my_dcmpeq(double v1, double v2, double prec)
{
	return v1 > (v2 - prec) && v1 < (v2 + prec);
}

static bool my_fcmpeq(float v1, float v2, float prec)
{
	return v1 > (v2 - prec) && v1 < (v2 + prec);
}


static TEE_Result test_float(void)
{
#define VAL1		2.6
#define VAL1_INT	2
#define VAL2		5.3
#define DPREC		0.000000000000001
#define FPREC		0.000001
#define EXPECT(expr) do { \
		if (!(expr)) { \
			EMSG("Expression %s failed", #expr); \
			return TEE_ERROR_GENERIC; \
		} \
	} while (0)

	IMSG("Testing floating point operations");

	EXPECT(my_dcmpeq(test_float_dadd(VAL1, VAL2), VAL1 + VAL2, DPREC));
	EXPECT(my_dcmpeq(test_float_ddiv(VAL1, VAL2), VAL1 / VAL2, DPREC));
	EXPECT(my_dcmpeq(test_float_dmul(VAL1, VAL2), VAL1 * VAL2, DPREC));
	EXPECT(my_dcmpeq(test_float_drsub(VAL1, VAL2), VAL2 - VAL1, DPREC));
	EXPECT(my_dcmpeq(test_float_dsub(VAL1, VAL2), VAL1 - VAL2, DPREC));

	EXPECT(test_float_dcmpeq(VAL1, VAL1) == 1);
	EXPECT(test_float_dcmplt(VAL1, VAL2) == 1);
	EXPECT(test_float_dcmple(VAL1, VAL1) == 1);
	EXPECT(test_float_dcmpge(VAL1, VAL1) == 1);
	EXPECT(test_float_dcmpgt(VAL2, VAL1) == 1);

	EXPECT(my_fcmpeq(test_float_fadd(VAL1, VAL2), VAL1 + VAL2, FPREC));
	EXPECT(my_fcmpeq(test_float_fdiv(VAL1, VAL2), VAL1 / VAL2, FPREC));
	EXPECT(my_fcmpeq(test_float_fmul(VAL1, VAL2), VAL1 * VAL2, FPREC));
	EXPECT(my_fcmpeq(test_float_frsub(VAL1, VAL2), VAL2 - VAL1, FPREC));
	EXPECT(my_fcmpeq(test_float_fsub(VAL1, VAL2), VAL1 - VAL2, FPREC));

	EXPECT(test_float_fcmpeq(VAL1, VAL1) == 1);
	EXPECT(test_float_fcmplt(VAL1, VAL2) == 1);
	EXPECT(test_float_fcmple(VAL1, VAL1) == 1);
	EXPECT(test_float_fcmpge(VAL1, VAL1) == 1);
	EXPECT(test_float_fcmpgt(VAL2, VAL1) == 1);

	EXPECT(test_float_d2iz(VAL1) == VAL1_INT);
	EXPECT(test_float_d2uiz(VAL1) == VAL1_INT);
	EXPECT(test_float_d2lz(VAL1) == VAL1_INT);
	EXPECT(test_float_d2ulz(VAL1) == VAL1_INT);

	EXPECT(test_float_f2iz(VAL1) == VAL1_INT);
	EXPECT(test_float_f2uiz(VAL1) == VAL1_INT);
	EXPECT(test_float_f2lz(VAL1) == VAL1_INT);
	EXPECT(test_float_f2ulz(VAL1) == VAL1_INT);

	EXPECT(my_fcmpeq(test_float_d2f(VAL1), VAL1, FPREC));
	EXPECT(my_dcmpeq(test_float_f2d(VAL1), VAL1, FPREC));

	EXPECT(my_dcmpeq(test_float_i2d(VAL1_INT), VAL1_INT, DPREC));
	EXPECT(my_dcmpeq(test_float_ui2d(VAL1_INT), VAL1_INT, DPREC));
	EXPECT(my_dcmpeq(test_float_l2d(VAL1_INT), VAL1_INT, DPREC));
	EXPECT(my_dcmpeq(test_float_ul2d(VAL1_INT), VAL1_INT, DPREC));

	EXPECT(my_fcmpeq(test_float_i2f(VAL1_INT), VAL1_INT, FPREC));
	EXPECT(my_fcmpeq(test_float_ui2f(VAL1_INT), VAL1_INT, FPREC));
	EXPECT(my_fcmpeq(test_float_l2f(VAL1_INT), VAL1_INT, FPREC));
	EXPECT(my_fcmpeq(test_float_ul2f(VAL1_INT), VAL1_INT, FPREC));
	return TEE_SUCCESS;
}
#else /*CFG_TA_FLOAT_SUPPORT*/
static TEE_Result test_float(void)
{
	IMSG("Floating point disabled");
	return TEE_SUCCESS;
}
#endif /*CFG_TA_FLOAT_SUPPORT*/

#if defined(CFG_TA_BGET_TEST)
/* From libutils */
int bget_main_test(void *(*malloc_func)(size_t), void (*free_func)(void *));

static void *malloc_wrapper(size_t size)
{
	return tee_map_zi(size, 0);
}

static void free_wrapper(void *ptr __unused)
{
}

static bool optee_pager_with_small_pool(void)
{
	uint32_t ptypes = TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_OUTPUT,
					  TEE_PARAM_TYPE_VALUE_OUTPUT,
					  TEE_PARAM_TYPE_VALUE_OUTPUT,
					  TEE_PARAM_TYPE_NONE);
	static const TEE_UUID uuid = STATS_UUID;
	TEE_TASessionHandle sess = TEE_HANDLE_NULL;
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_Param params[4] = { };
	uint32_t eo = 0;
	bool rc = false;

	res = TEE_OpenTASession(&uuid, TEE_TIMEOUT_INFINITE, 0, NULL, &sess,
				&eo);
	if (res)
		return false;

	res = TEE_InvokeTACommand(sess, 0, STATS_CMD_PAGER_STATS,
				  ptypes, params, &eo);
	if (res == TEE_SUCCESS &&
	    params[0].value.b && params[0].value.b <= PAGER_PAGE_COUNT_THRESHOLD)
		rc = true;

	TEE_CloseTASession(sess);

	return rc;
}

static TEE_Result test_bget(void)
{
	if (optee_pager_with_small_pool()) {
		IMSG("Skip testing bget due to pager pool constraints");
		return TEE_SUCCESS;
	}

	DMSG("Testing bget");
	if (bget_main_test(malloc_wrapper, free_wrapper)) {
		EMSG("bget_main_test failed");
		return TEE_ERROR_GENERIC;
	}
	DMSG("Bget OK");
	return TEE_SUCCESS;
}
#else
static TEE_Result test_bget(void)
{
	IMSG("Bget test disabled");
	return TEE_SUCCESS;
}
#endif


static __noinline __noreturn void call_longjmp(jmp_buf env)
{
	DMSG("Calling longjmp");
	longjmp(env, 1);
	EMSG("error: longjmp returned to calling function");
}

static TEE_Result test_setjmp(void)
{
	jmp_buf env = { };

	if (setjmp(env)) {
		IMSG("Returned via longjmp");
		return TEE_SUCCESS;
	} else {
		call_longjmp(env);
		return TEE_ERROR_GENERIC;
	}
}

TEE_Result ta_entry_basic(uint32_t param_types, TEE_Param params[4])
{
	TEE_Result res = TEE_ERROR_GENERIC;

	printf("ta_entry_basic: enter\n");

	res = test_malloc();
	if (res != TEE_SUCCESS)
		return res;

	res = test_properties();
	if (res != TEE_SUCCESS)
		return res;

	res = test_mem_access_right(param_types, params);
	if (res != TEE_SUCCESS)
		return res;

	res = test_time();
	if (res != TEE_SUCCESS)
		return res;

	res = test_float();
	if (res != TEE_SUCCESS)
		return res;

	res = test_setjmp();
	if (res != TEE_SUCCESS)
		return res;

	res = test_bget();
	if (res != TEE_SUCCESS)
		return res;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_panic(uint32_t param_types, TEE_Param params[4])
{
	volatile bool mytrue = true;
	(void)param_types;
	(void)params;

	printf("ta_entry_panic: enter\n");
	/*
	 * Somewhat clumsy way of avoiding compile errors if TEE_Panic() has
	 * the __noreturn attribute.
	 */
	if (mytrue)
		TEE_Panic(0xbeef);

	/*
	 * Should not be reached, but if it is the testsuite can detect that
	 * TEE_Panic() returned instead of panicking the TA.
	 */
	return TEE_SUCCESS;
}

TEE_Result ta_entry_client_with_timeout(uint32_t param_types,
					TEE_Param params[4])
{
	static const TEE_UUID os_test_uuid = TA_OS_TEST_UUID;
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_TASessionHandle sess = TEE_HANDLE_NULL;
	uint32_t ret_orig = 0;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE)) {
		EMSG("ta_entry_client_with_timeout: bad parameters\n");
		return TEE_ERROR_BAD_PARAMETERS;
	}

	res = TEE_OpenTASession(&os_test_uuid, TEE_TIMEOUT_INFINITE, 0, NULL,
				&sess, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG(
		"ta_entry_client_with_timeout: TEE_OpenTASession failed\n");
		return res;
	}

	res =
	    TEE_InvokeTACommand(sess, params[0].value.a / 2,
				TA_OS_TEST_CMD_WAIT, param_types, params,
				&ret_orig);

	if (ret_orig != TEE_ORIGIN_TRUSTED_APP || res != TEE_ERROR_CANCEL) {
		EMSG("ta_entry_client_with_timeout: TEE_InvokeTACommand: "
		     "res 0x%x ret_orig 0x%x\n", (unsigned int)res,
		     (unsigned int)ret_orig);
		res = TEE_ERROR_GENERIC;
	} else
		res = TEE_SUCCESS;

	TEE_CloseTASession(sess);
	return res;

}

TEE_Result ta_entry_client(uint32_t param_types, TEE_Param params[4])
{
	static const TEE_UUID crypt_uuid = TA_CRYPT_UUID;
	TEE_Result res = TEE_ERROR_GENERIC;
	uint32_t l_pts = 0;
	TEE_Param l_params[4] = { };
	TEE_TASessionHandle sess = TEE_HANDLE_NULL;
	uint32_t ret_orig = 0;
	static const uint8_t sha256_in[] = { 'a', 'b', 'c' };
	static const uint8_t sha256_out[] = {
		0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea,
		0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23,
		0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c,
		0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad
	};
	uint8_t out[32] = { 0 };
	void *in = NULL;

	(void)param_types;
	(void)params;

	printf("ta_entry_client: enter\n");

	in = TEE_Malloc(sizeof(sha256_in), 0);
	if (in == NULL)
		return TEE_ERROR_OUT_OF_MEMORY;
	TEE_MemMove(in, sha256_in, sizeof(sha256_in));

	res = TEE_OpenTASession(&crypt_uuid, TEE_TIMEOUT_INFINITE, 0, NULL,
				&sess, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("ta_entry_client: TEE_OpenTASession failed\n");
		goto cleanup_return;
	}

	l_pts = TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
				TEE_PARAM_TYPE_MEMREF_OUTPUT, 0, 0);
	l_params[0].memref.buffer = in;
	l_params[0].memref.size = sizeof(sha256_in);
	l_params[1].memref.buffer = out;
	l_params[1].memref.size = sizeof(out);

	res = TEE_InvokeTACommand(sess, TEE_TIMEOUT_INFINITE,
				  TA_CRYPT_CMD_SHA256, l_pts, l_params,
				  &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("ta_entry_client: TEE_InvokeTACommand failed\n");
		goto cleanup_return;
	}

	if (TEE_MemCompare(sha256_out, out, sizeof(sha256_out)) != 0) {
		EMSG("ta_entry_client: out parameter failed\n");
		res = TEE_ERROR_GENERIC;
		goto cleanup_return;
	}

cleanup_return:
	TEE_Free(in);
	TEE_CloseTASession(sess);
	return res;
}

TEE_Result ta_entry_params_access_rights(uint32_t param_types, TEE_Param params[4])
{
	TEE_Result res = TEE_ERROR_GENERIC;

	if (param_types !=
	    TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
			    TEE_PARAM_TYPE_MEMREF_INPUT, 0, 0))
		return TEE_ERROR_GENERIC;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ |
					  TEE_MEMORY_ACCESS_ANY_OWNER,
					  params[0].memref.buffer,
					  params[0].memref.size);
	if (res != TEE_SUCCESS)
		return res;

	res = TEE_CheckMemoryAccessRights(TEE_MEMORY_ACCESS_READ,
					  params[0].memref.buffer,
					  params[0].memref.size);
	if (res != TEE_ERROR_ACCESS_DENIED)
		return TEE_ERROR_GENERIC;
	if (params[1].memref.buffer || params[1].memref.size)
		return TEE_ERROR_BAD_PARAMETERS;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_wait(uint32_t param_types, TEE_Param params[4])
{
	TEE_Result res = TEE_SUCCESS;
	(void)param_types;

	printf("ta_entry_wait: waiting %d\n", (unsigned int)params[0].value.a);
	/* Wait */
	res = TEE_Wait(params[0].value.a);

	return res;
}

static void undef_instr(void)
{
#if defined(ARM64)
	__asm__(".word 0x0");
#elif defined(ARM32)
	__asm__(".word 0xe7ffffff");
#elif defined(RV64) || defined(RV32)
	__asm__(".word 0x0");
#else
#error "Unsupported architecture"
#endif
}

TEE_Result ta_entry_bad_mem_access(uint32_t param_types, TEE_Param params[4])
{
	long int stack = 0;
	long int stack_addr = (long int)&stack;
	void (*volatile null_fn_ptr)(void) = NULL;
	char *zero_size_malloc = NULL;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT, 0, 0, 0) &&
	    param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_INPUT,
					   TEE_PARAM_TYPE_MEMREF_INOUT, 0, 0))
		return TEE_ERROR_GENERIC;

	switch (params[0].value.a) {
	case 1:
		*((volatile uint32_t *)0) = 0;
		break;
	case 2:
		*((uint32_t *)(stack_addr + 0x40000000)) = 0;
		break;
	case 3:
		null_fn_ptr();
		break;
	case 4:
		((void (*)(void))(stack_addr + 0x40000000)) ();
		break;
	case 5:
		undef_instr();
		break;
	case 6:
		zero_size_malloc = TEE_Malloc(0, 0);
		if (!zero_size_malloc)
			return TEE_ERROR_GENERIC;
		if (*zero_size_malloc)
			return TEE_ERROR_GENERIC;
		break;
	case 7:
		zero_size_malloc = TEE_Malloc(0, 0);
		if (!zero_size_malloc)
			return TEE_ERROR_GENERIC;
		*zero_size_malloc = 0;
		break;
	default:
		break;
	}

	return TEE_SUCCESS;
}

static void incr_values(size_t bufsize, uint8_t *a, uint8_t *b, uint8_t *c)
{
	size_t i = 0;

	for (i = 0; i < bufsize; i++) {
		a[i]++; b[i]++; c[i]++;
	}
}

#define TA2TA_BUF_SIZE		(2 * 1024)
TEE_Result ta_entry_ta2ta_memref(uint32_t param_types, TEE_Param params[4])
{
	static const TEE_UUID test_uuid = TA_OS_TEST_UUID;
	TEE_TASessionHandle sess = TEE_HANDLE_NULL;
	TEE_Param l_params[4] = { };
	uint8_t in[TA2TA_BUF_SIZE] = { };
	uint8_t inout[TA2TA_BUF_SIZE] = { };
	uint8_t out[TA2TA_BUF_SIZE] = { };
	TEE_Result res = TEE_ERROR_GENERIC;
	uint32_t ret_orig = 0;
	uint32_t l_pts = 0;
	size_t i = 0;

	(void)params;

	if (param_types != TEE_PARAM_TYPES(0, 0, 0, 0))
		return TEE_ERROR_GENERIC;

	res = TEE_OpenTASession(&test_uuid, TEE_TIMEOUT_INFINITE, 0, NULL,
				&sess, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_OpenTASession failed");
		goto cleanup_return;
	}

	l_pts = TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
				TEE_PARAM_TYPE_MEMREF_INOUT,
				TEE_PARAM_TYPE_MEMREF_OUTPUT, 0);
	l_params[0].memref.buffer = in;
	l_params[0].memref.size = TA2TA_BUF_SIZE;
	l_params[1].memref.buffer = inout;
	l_params[1].memref.size = TA2TA_BUF_SIZE;
	l_params[2].memref.buffer = out;
	l_params[2].memref.size = TA2TA_BUF_SIZE;

	/* Initialize buffers */
	for (i = 0; i < TA2TA_BUF_SIZE; i++) {
		in[i] = 5;
		inout[i] = 10;
		out[i] = 0;
	}

	/*
	 * TA will compute: out = ++inout + in
	 * Expected values after this step: in: 5, inout: 11, out: 16
	 */
	res = TEE_InvokeTACommand(sess, TEE_TIMEOUT_INFINITE,
				  TA_OS_TEST_CMD_TA2TA_MEMREF_MIX,
				  l_pts, l_params, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_InvokeTACommand failed");
		goto cleanup_return;
	}

	/*
	 * Increment all values by one.
	 * Expected values after this step: in: 6, inout: 12, out: 17
	 */
	incr_values(TA2TA_BUF_SIZE, in, inout, out);

	/*
	 * TA will compute: out = ++inout + in
	 * Expected values after this step: in: 6, inout: 13, out: 19
	 */
	res = TEE_InvokeTACommand(sess, TEE_TIMEOUT_INFINITE,
				  TA_OS_TEST_CMD_TA2TA_MEMREF_MIX,
				  l_pts, l_params, &ret_orig);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_InvokeTACommand failed");
		goto cleanup_return;
	}

	/* Check the actual values */
	for (i = 0; i < TA2TA_BUF_SIZE; i++) {
		if (in[i] != 6 || inout[i] != 13 || out[i] != 19) {
			EMSG("Unexpected value in buffer(s)");
			DHEXDUMP(in, TA2TA_BUF_SIZE);
			DHEXDUMP(inout, TA2TA_BUF_SIZE);
			DHEXDUMP(out, TA2TA_BUF_SIZE);
			return TEE_ERROR_GENERIC;
		}
	}

cleanup_return:
	TEE_CloseTASession(sess);
	return res;
}
#undef TA2TA_BUF_SIZE

TEE_Result ta_entry_ta2ta_memref_mix(uint32_t param_types, TEE_Param params[4])
{
	uint8_t *in = NULL;
	uint8_t *inout = NULL;
	uint8_t *out = NULL;
	size_t bufsize = 0;
	size_t i = 0;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
					   TEE_PARAM_TYPE_MEMREF_INOUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT, 0))
		return TEE_ERROR_GENERIC;

	bufsize = params[0].memref.size;
	if (params[1].memref.size != bufsize ||
	    params[2].memref.size != bufsize)
		return TEE_ERROR_GENERIC;

	in = params[0].memref.buffer;
	inout = params[1].memref.buffer;
	out = params[2].memref.buffer;

	for (i = 0; i < bufsize; i++)
		out[i] = ++inout[i] + in[i];

	return TEE_SUCCESS;
}

TEE_Result ta_entry_params(uint32_t param_types, TEE_Param params[4])
{
	size_t n = 0;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
					   TEE_PARAM_TYPE_MEMREF_INPUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT))
		return TEE_ERROR_BAD_PARAMETERS;

	for (n = 0; n < TEE_NUM_PARAMS; n++)
		if (!params[n].memref.buffer || !params[n].memref.size)
			return TEE_ERROR_BAD_PARAMETERS;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_null_memref(uint32_t param_types, TEE_Param params[4])
{
	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_MEMREF_INPUT,
					   TEE_PARAM_TYPE_MEMREF_INPUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT))
		return TEE_ERROR_BAD_PARAMETERS;

	/*
	 * Tests how client can provide null or non-null memref parameters
	 * param[0] expected as a 0 byte input mapped memeref.
	 * param[1] expected as a 0 byte input not-mapped memeref.
	 * param[2] expected as a 0 byte output mapped memeref.
	 * param[3] expected as a 0 byte output not-mapped memeref.
	 */
	if (!params[0].memref.buffer || params[0].memref.size ||
	    params[1].memref.buffer || params[1].memref.size ||
	    !params[2].memref.buffer || params[2].memref.size ||
	    params[3].memref.buffer || params[3].memref.size)
		return TEE_ERROR_BAD_PARAMETERS;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_call_lib(uint32_t param_types,
			     TEE_Param params[4] __unused)
{
	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	if (os_test_shlib_add(1, 2) != 3)
		return TEE_ERROR_GENERIC;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_call_lib_panic(uint32_t param_types,
				   TEE_Param params[4] __unused)
{
	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	os_test_shlib_panic();

	return TEE_ERROR_GENERIC;
}

TEE_Result ta_entry_call_lib_dl(uint32_t param_types __maybe_unused,
				TEE_Param params[4] __unused)
{
	int (*add_func)(int a, int b) = NULL;
	TEE_Result res = TEE_ERROR_GENERIC;
	void *handle = NULL;
	void *hnull = NULL;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	handle = dlopen("b3091a65-9751-4784-abf7-0298a7cc35ba",
			RTLD_NOW | RTLD_GLOBAL | RTLD_NODELETE);
	if (!handle)
		return TEE_ERROR_GENERIC;

	add_func = dlsym(handle, "os_test_shlib_dl_add");
	if (!add_func)
		goto err;
	if (add_func(3, 4) != 7)
		goto err;

	hnull = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL | RTLD_NODELETE);
	if (!hnull)
		goto err;

	add_func = dlsym(hnull, "os_test_shlib_dl_add");
	if (!add_func)
		goto err;
	if (add_func(5, 6) != 11)
		goto err;

	res = TEE_SUCCESS;
	dlclose(hnull);
err:
	dlclose(handle);
	return res;
}

TEE_Result ta_entry_call_lib_dl_panic(uint32_t param_types __maybe_unused,
				      TEE_Param params[4] __unused)
{
	int (*panic_func)(void) = NULL;
	void *handle = NULL;
	TEE_Result res = TEE_ERROR_GENERIC;

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	handle = dlopen("b3091a65-9751-4784-abf7-0298a7cc35ba",
			RTLD_NOW | RTLD_GLOBAL | RTLD_NODELETE);
	if (!handle)
		return res;

	panic_func = dlsym(handle, "os_test_shlib_dl_panic");
	if (!panic_func)
		goto err;
	panic_func();
	return TEE_ERROR_GENERIC;
err:
	dlclose(handle);
	return res;
}

/* ELF initialization/finalization test */

volatile int os_test_global;

static void __attribute__((constructor)) os_test_init(void)
{
	os_test_global *= 10;
	os_test_global += 1;
	DMSG("os_test_global=%d", os_test_global);
}

TEE_Result ta_entry_get_global_var(uint32_t param_types, TEE_Param params[4])
{
	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_OUTPUT,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	params[0].value.a = os_test_global;

	return TEE_SUCCESS;
}

TEE_Result ta_entry_client_identity(uint32_t param_types, TEE_Param params[4])
{
	TEE_Result res = TEE_ERROR_GENERIC;
	TEE_Identity identity = { };

	if (param_types != TEE_PARAM_TYPES(TEE_PARAM_TYPE_VALUE_OUTPUT,
					   TEE_PARAM_TYPE_MEMREF_OUTPUT,
					   TEE_PARAM_TYPE_NONE,
					   TEE_PARAM_TYPE_NONE))
		return TEE_ERROR_BAD_PARAMETERS;

	if (params[1].memref.size < sizeof(TEE_UUID)) {
		params[1].memref.size = sizeof(TEE_UUID);
		return TEE_ERROR_SHORT_BUFFER;
	}

	res = TEE_GetPropertyAsIdentity(TEE_PROPSET_CURRENT_CLIENT,
					"gpd.client.identity", &identity);
	if (res != TEE_SUCCESS) {
		EMSG("TEE_GetPropertyAsIdentity: returned %#"PRIx32, res);
		return res;
	}

	params[0].value.a = identity.login;
	memcpy(params[1].memref.buffer, &identity.uuid, sizeof(TEE_UUID));
	params[1].memref.size = sizeof(TEE_UUID);

	return res;
}

#if defined(WITH_TLS_TESTS)
__thread int os_test_tls_a;
__thread int os_test_tls_b = 42;

TEE_Result ta_entry_tls_test_main(void)
{
	if (os_test_tls_a != 0) {
		EMSG("os_test_tls_a=%d, expected 0", os_test_tls_a);
		return TEE_ERROR_GENERIC;
	}
	if (os_test_tls_b != 42) {
		EMSG("os_test_tls_b=%d, expected 42", os_test_tls_b);
		return TEE_ERROR_GENERIC;
	}

	return TEE_SUCCESS;
}

TEE_Result ta_entry_tls_test_shlib(void)
{
	if (os_test_shlib_tls_a != 0) {
		EMSG("os_test_shlib_tls_a=%d, expected 0", os_test_shlib_tls_a);
		return TEE_ERROR_GENERIC;
	}
	if (os_test_shlib_tls_b != 123) {
		EMSG("os_test_shlib_tls_b=%d, expected 123",
		     os_test_shlib_tls_b);
		return TEE_ERROR_GENERIC;
	}

	return TEE_SUCCESS;
}
#else
TEE_Result ta_entry_tls_test_main(void)
{
	return TEE_ERROR_NOT_SUPPORTED;
}

TEE_Result ta_entry_tls_test_shlib(void)
{
	return TEE_ERROR_NOT_SUPPORTED;
}
#endif

static int iterate_hdr_cb(struct dl_phdr_info *info __maybe_unused,
			  size_t size __unused, void *data)
{
	int *count = data;

	(*count)++;
	IMSG("ELF module index: %d", *count);
	IMSG(" dlpi_addr=%p", (void *)info->dlpi_addr);
	IMSG(" dlpi_name='%s'", info->dlpi_name);
	IMSG(" dlpi_phdr=%p", (void *)info->dlpi_phdr);
	IMSG(" dlpi_phnum=%hu", info->dlpi_phnum);
	IMSG(" dlpi_adds=%llu", info->dlpi_adds);
	IMSG(" dlpi_subs=%llu", info->dlpi_subs);
	IMSG(" dlpi_tls_modid=%zu", info->dlpi_tls_modid);
	IMSG(" dlpi_tls_data=%p", info->dlpi_tls_data);

	return 123;
}

static TEE_Result expect_dl_count_ge(size_t exp_count)
{
	int st = 0;
	size_t count = 0;

	st = dl_iterate_phdr(iterate_hdr_cb, (void *)&count);
	if (st != 123) {
		/*
		 * dl_iterate_phdr() should return the last value returned by
		 * the callback
		 */
		EMSG("Expected return value 123, got %d", st);
		return TEE_ERROR_GENERIC;
	}
	if (count < exp_count) {
		/*
		 * Expect >= and not == since there could be more shared
		 * libraries (for instance, CFG_ULIBS_SHARED=y)
		 */
		EMSG("Expected count > %zu, got: %zu", exp_count, count);
		return TEE_ERROR_GENERIC;
	}

	return TEE_SUCCESS;
}

TEE_Result ta_entry_dl_phdr(void)
{
	return expect_dl_count_ge(2);
}

TEE_Result ta_entry_dl_phdr_dl(void)
{
	TEE_Result res = TEE_ERROR_GENERIC;
	void *handle = NULL;

	handle = dlopen("b3091a65-9751-4784-abf7-0298a7cc35ba",
			RTLD_NOW | RTLD_GLOBAL | RTLD_NODELETE);
	if (!handle)
		return TEE_ERROR_GENERIC;

	res = expect_dl_count_ge(3);
	dlclose(handle);

	return res;
}

TEE_Result ta_entry_memtag_use_after_free(void)
{
	uint32_t *p = NULL;

	if (!memtag_is_enabled())
		return TEE_ERROR_NOT_SUPPORTED;

	p = TEE_Malloc(sizeof(*p), TEE_MALLOC_FILL_ZERO);
	*p = 43;
	TEE_Free(p);
	(*p) += 2;
	return TEE_ERROR_GENERIC;
}

TEE_Result ta_entry_memtag_invalid_tag(void)
{
	uint32_t *p = NULL;
	uint32_t *p2 = NULL;

	if (!memtag_is_enabled())
		return TEE_ERROR_NOT_SUPPORTED;

	p = TEE_Malloc(sizeof(*p), TEE_MALLOC_FILL_ZERO);

	if (!memtag_get_tag(p)) {
		EMSG("missing tag in %p", (void *)p);
		goto err;
	}
	*p = 32;

	p2 = memtag_insert_tag(p, (memtag_get_tag(p) + 1) & 0xf);
	*p2 = 42;
	EMSG("Expected to crash when writing to %p which was allocated as %p",
	     (void *)p2, (void *)p);
err:
	TEE_Free(p);
	return TEE_ERROR_GENERIC;
}

TEE_Result ta_entry_memtag_double_free(void)
{
	uint32_t *p = NULL;

	if (!memtag_is_enabled())
		return TEE_ERROR_NOT_SUPPORTED;

	p = TEE_Malloc(sizeof(*p), TEE_MALLOC_FILL_ZERO);
	*p = 43;
	TEE_Free(p);
	TEE_Free(p);
	return TEE_ERROR_GENERIC;
}

TEE_Result ta_entry_memtag_buffer_overrun(void)
{
	uint64_t *p = NULL;

	if (!memtag_is_enabled())
		return TEE_ERROR_NOT_SUPPORTED;

	p = TEE_Malloc(sizeof(*p) * 2, TEE_MALLOC_FILL_ZERO);
	p[2] += 44;
	TEE_Free(p);
	return TEE_ERROR_GENERIC;
}