1 files changed, 0 insertions, 353 deletions
diff --git a/src/lib/tlcl.c b/src/lib/tlcl.c
deleted file mode 100644
index 49854cbdcb..0000000000
--- a/src/lib/tlcl.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* A lightweight TPM command library.
- *
- * The general idea is that TPM commands are array of bytes whose
- * fields are mostly compile-time constant.  The goal is to build much
- * of the commands at compile time (or build time) and change some of
- * the fields at run time as needed.  The code in
- * utility/tlcl_generator.c builds structures containing the commands,
- * as well as the offsets of the fields that need to be set at run
- * time.
- */
-
-#include <arch/early_variables.h>
-#include <assert.h>
-#include <string.h>
-#include <tpm_lite/tlcl.h>
-#include <tpm.h>
-#include <vb2_api.h>
-#include "tlcl_internal.h"
-#include "tlcl_structures.h"
-
-#ifdef FOR_TEST
-#include <stdio.h>
-#define VBDEBUG(format, args...) printf(format, ## args)
-#else
-#include <console/console.h>
-#define VBDEBUG(format, args...) printk(BIOS_DEBUG, format, ## args)
-#endif
-
-static int tpm_send_receive(const uint8_t *request,
-				uint32_t request_length,
-				uint8_t *response,
-				uint32_t *response_length)
-{
-	size_t len = *response_length;
-	if (tis_sendrecv(request, request_length, response, &len))
-		return VB2_ERROR_UNKNOWN;
-	/* check 64->32bit overflow and (re)check response buffer overflow */
-	if (len > *response_length)
-		return VB2_ERROR_UNKNOWN;
-	*response_length = len;
-	return VB2_SUCCESS;
-}
-
-/* Sets the size field of a TPM command. */
-static inline void set_tpm_command_size(uint8_t *buffer, uint32_t size)
-{
-	to_tpm_uint32(buffer + sizeof(uint16_t), size);
-}
-
-/* Gets the size field of a TPM command. */
-__attribute__((unused))
-static inline int tpm_command_size(const uint8_t *buffer)
-{
-	uint32_t size;
-	from_tpm_uint32(buffer + sizeof(uint16_t), &size);
-	return (int) size;
-}
-
-/* Gets the code field of a TPM command. */
-static inline int tpm_command_code(const uint8_t *buffer)
-{
-	uint32_t code;
-	from_tpm_uint32(buffer + sizeof(uint16_t) + sizeof(uint32_t), &code);
-	return code;
-}
-
-/* Gets the return code field of a TPM result. */
-static inline int tpm_return_code(const uint8_t *buffer)
-{
-	return tpm_command_code(buffer);
-}
-
-/* Like TlclSendReceive below, but do not retry if NEEDS_SELFTEST or
- * DOING_SELFTEST errors are returned.
- */
-static uint32_t tlcl_send_receive_no_retry(const uint8_t *request,
-					   uint8_t *response, int max_length)
-{
-	uint32_t response_length = max_length;
-	uint32_t result;
-
-	result = tpm_send_receive(request, tpm_command_size(request),
-					response, &response_length);
-	if (result != 0) {
-		/* Communication with TPM failed, so response is garbage */
-		VBDEBUG("TPM: command 0x%x send/receive failed: 0x%x\n",
-			tpm_command_code(request), result);
-		return result;
-	}
-	/* Otherwise, use the result code from the response */
-	result = tpm_return_code(response);
-
-	/* TODO: add paranoia about returned response_length vs. max_length
-	 * (and possibly expected length from the response header).  See
-	 * crosbug.com/17017 */
-
-	VBDEBUG("TPM: command 0x%x returned 0x%x\n",
-		tpm_command_code(request), result);
-
-return result;
-}
-
-
-/* Sends a TPM command and gets a response.  Returns 0 if success or the TPM
- * error code if error. Waits for the self test to complete if needed. */
-uint32_t tlcl_send_receive(const uint8_t *request, uint8_t *response,
-			   int max_length)
-{
-	uint32_t result = tlcl_send_receive_no_retry(request, response,
-						     max_length);
-	/* If the command fails because the self test has not completed, try it
-	 * again after attempting to ensure that the self test has completed. */
-	if (result == TPM_E_NEEDS_SELFTEST || result == TPM_E_DOING_SELFTEST) {
-		result = tlcl_continue_self_test();
-		if (result != TPM_SUCCESS)
-			return result;
-#if defined(TPM_BLOCKING_CONTINUESELFTEST) || defined(VB_RECOVERY_MODE)
-		/* Retry only once */
-		result = tlcl_send_receive_no_retry(request, response,
-						    max_length);
-#else
-		/* This needs serious testing. The TPM specification says: "iii.
-		 * The caller MUST wait for the actions of TPM_ContinueSelfTest
-		 * to complete before reissuing the command C1."  But, if
-		 * ContinueSelfTest is non-blocking, how do we know that the
-		 * actions have completed other than trying again? */
-		do {
-			result = tlcl_send_receive_no_retry(request, response,
-							    max_length);
-		} while (result == TPM_E_DOING_SELFTEST);
-#endif
-	}
-	return result;
-}
-
-/* Sends a command and returns the error code. */
-static uint32_t send(const uint8_t *command)
-{
-	uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
-	return tlcl_send_receive(command, response, sizeof(response));
-}
-
-/* Exported functions. */
-
-static uint8_t tlcl_init_done CAR_GLOBAL;
-
-uint32_t tlcl_lib_init(void)
-{
-	uint8_t done = car_get_var(tlcl_init_done);
-	if (done)
-		return VB2_SUCCESS;
-
-	if (tis_init())
-		return VB2_ERROR_UNKNOWN;
-	if (tis_open())
-		return VB2_ERROR_UNKNOWN;
-
-	car_set_var(tlcl_init_done, 1);
-
-	return VB2_SUCCESS;
-}
-
-uint32_t tlcl_startup(void)
-{
-	VBDEBUG("TPM: Startup\n");
-	return send(tpm_startup_cmd.buffer);
-}
-
-uint32_t tlcl_resume(void)
-{
-	VBDEBUG("TPM: Resume\n");
-	return send(tpm_resume_cmd.buffer);
-}
-
-uint32_t tlcl_self_test_full(void)
-{
-	VBDEBUG("TPM: Self test full\n");
-	return send(tpm_selftestfull_cmd.buffer);
-}
-
-uint32_t tlcl_continue_self_test(void)
-{
-	uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
-	VBDEBUG("TPM: Continue self test\n");
-	/* Call the No Retry version of SendReceive to avoid recursion. */
-	return tlcl_send_receive_no_retry(tpm_continueselftest_cmd.buffer,
-					  response, sizeof(response));
-}
-
-uint32_t tlcl_define_space(uint32_t index, uint32_t perm, uint32_t size)
-{
-	struct s_tpm_nv_definespace_cmd cmd;
-	VBDEBUG("TPM: TlclDefineSpace(0x%x, 0x%x, %d)\n", index, perm, size);
-	memcpy(&cmd, &tpm_nv_definespace_cmd, sizeof(cmd));
-	to_tpm_uint32(cmd.buffer + tpm_nv_definespace_cmd.index, index);
-	to_tpm_uint32(cmd.buffer + tpm_nv_definespace_cmd.perm, perm);
-	to_tpm_uint32(cmd.buffer + tpm_nv_definespace_cmd.size, size);
-	return send(cmd.buffer);
-}
-
-uint32_t tlcl_write(uint32_t index, const void *data, uint32_t length)
-{
-	struct s_tpm_nv_write_cmd cmd;
-	uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
-	const int total_length =
-			kTpmRequestHeaderLength + kWriteInfoLength + length;
-
-	VBDEBUG("TPM: tlcl_write(0x%x, %d)\n", index, length);
-	memcpy(&cmd, &tpm_nv_write_cmd, sizeof(cmd));
-	assert(total_length <= TPM_LARGE_ENOUGH_COMMAND_SIZE);
-	set_tpm_command_size(cmd.buffer, total_length);
-
-	to_tpm_uint32(cmd.buffer + tpm_nv_write_cmd.index, index);
-	to_tpm_uint32(cmd.buffer + tpm_nv_write_cmd.length, length);
-	memcpy(cmd.buffer + tpm_nv_write_cmd.data, data, length);
-
-	return tlcl_send_receive(cmd.buffer, response, sizeof(response));
-}
-
-uint32_t tlcl_read(uint32_t index, void *data, uint32_t length)
-{
-	struct s_tpm_nv_read_cmd cmd;
-	uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
-	uint32_t result_length;
-	uint32_t result;
-
-	VBDEBUG("TPM: tlcl_read(0x%x, %d)\n", index, length);
-	memcpy(&cmd, &tpm_nv_read_cmd, sizeof(cmd));
-	to_tpm_uint32(cmd.buffer + tpm_nv_read_cmd.index, index);
-	to_tpm_uint32(cmd.buffer + tpm_nv_read_cmd.length, length);
-
-	result = tlcl_send_receive(cmd.buffer, response, sizeof(response));
-	if (result == TPM_SUCCESS && length > 0) {
-		uint8_t *nv_read_cursor = response + kTpmResponseHeaderLength;
-		from_tpm_uint32(nv_read_cursor, &result_length);
-		nv_read_cursor += sizeof(uint32_t);
-		memcpy(data, nv_read_cursor, result_length);
-	}
-
-	return result;
-}
-
-
-uint32_t tlcl_assert_physical_presence(void)
-{
-	VBDEBUG("TPM: Asserting physical presence\n");
-	return send(tpm_ppassert_cmd.buffer);
-}
-
-uint32_t tlcl_physical_presence_cmd_enable(void)
-{
-	VBDEBUG("TPM: Enable the physical presence command\n");
-	return send(tpm_ppenable_cmd.buffer);
-}
-
-uint32_t tlcl_finalize_physical_presence(void)
-{
-	VBDEBUG("TPM: Enable PP cmd, disable HW pp, and set lifetime lock\n");
-	return send(tpm_finalizepp_cmd.buffer);
-}
-
-uint32_t tlcl_set_nv_locked(void)
-{
-	VBDEBUG("TPM: Set NV locked\n");
-	return tlcl_define_space(TPM_NV_INDEX_LOCK, 0, 0);
-}
-
-uint32_t tlcl_force_clear(void)
-{
-	VBDEBUG("TPM: Force clear\n");
-	return send(tpm_forceclear_cmd.buffer);
-}
-
-uint32_t tlcl_set_enable(void)
-{
-	VBDEBUG("TPM: Enabling TPM\n");
-	return send(tpm_physicalenable_cmd.buffer);
-}
-
-uint32_t tlcl_set_deactivated(uint8_t flag)
-{
-	struct s_tpm_physicalsetdeactivated_cmd cmd;
-	VBDEBUG("TPM: SetDeactivated(%d)\n", flag);
-	memcpy(&cmd, &tpm_physicalsetdeactivated_cmd, sizeof(cmd));
-	*(cmd.buffer + cmd.deactivated) = flag;
-	return send(cmd.buffer);
-}
-
-uint32_t tlcl_get_permanent_flags(TPM_PERMANENT_FLAGS *pflags)
-{
-	uint8_t response[TPM_LARGE_ENOUGH_COMMAND_SIZE];
-	uint32_t size;
-	uint32_t result = tlcl_send_receive(tpm_getflags_cmd.buffer, response,
-					    sizeof(response));
-	if (result != TPM_SUCCESS)
-		return result;
-	from_tpm_uint32(response + kTpmResponseHeaderLength, &size);
-	assert(size == sizeof(TPM_PERMANENT_FLAGS));
-	memcpy(pflags, response + kTpmResponseHeaderLength + sizeof(size),
-	       sizeof(TPM_PERMANENT_FLAGS));
-	return result;
-}
-
-uint32_t tlcl_get_flags(uint8_t *disable, uint8_t *deactivated,
-			uint8_t *nvlocked)
-{
-	TPM_PERMANENT_FLAGS pflags;
-	uint32_t result = tlcl_get_permanent_flags(&pflags);
-	if (result == TPM_SUCCESS) {
-		if (disable)
-			*disable = pflags.disable;
-		if (deactivated)
-			*deactivated = pflags.deactivated;
-		if (nvlocked)
-			*nvlocked = pflags.nvLocked;
-		VBDEBUG("TPM: flags disable=%d, deactivated=%d, nvlocked=%d\n",
-			pflags.disable, pflags.deactivated, pflags.nvLocked);
-	}
-	return result;
-}
-
-uint32_t tlcl_set_global_lock(void)
-{
-	uint32_t x;
-	VBDEBUG("TPM: Set global lock\n");
-	return tlcl_write(TPM_NV_INDEX0, (uint8_t *) &x, 0);
-}
-
-uint32_t tlcl_extend(int pcr_num, const uint8_t *in_digest,
-		     uint8_t *out_digest)
-{
-	struct s_tpm_extend_cmd cmd;
-	uint8_t response[kTpmResponseHeaderLength + kPcrDigestLength];
-	uint32_t result;
-
-	memcpy(&cmd, &tpm_extend_cmd, sizeof(cmd));
-	to_tpm_uint32(cmd.buffer + tpm_extend_cmd.pcrNum, pcr_num);
-	memcpy(cmd.buffer + cmd.inDigest, in_digest, kPcrDigestLength);
-
-	result = tlcl_send_receive(cmd.buffer, response, sizeof(response));
-	if (result != TPM_SUCCESS)
-		return result;
-
-	if (out_digest)
-		memcpy(out_digest, response + kTpmResponseHeaderLength,
-		       kPcrDigestLength);
-	return result;
-}