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58759f5fbb
Various parts of Cr50 code and Cr50 related utilities duplicate
definition of __packed available in include/common.h. Let's use the
same definition everywhere.
BRANCH=cr50, cr50-mp
BUG=none
TEST=make buildall succeeds
verified that linker generated map files for Cr50 RW are the same
before and after this change.
built and used gsctoo and rma_reset
Change-Id: Ib91f9bbad1f6822b347f32b393630f592df80d60
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/931929
Reviewed-by: Randall Spangler <rspangler@chromium.org>
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* RMA challenge-response */
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#ifndef __CROS_EC_RMA_AUTH_H
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#define __CROS_EC_RMA_AUTH_H
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#include <stdint.h>
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#include "common.h" /* For __packed. */
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/* Current challenge protocol version */
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#define RMA_CHALLENGE_VERSION 0
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/* Getters and setters for version_key_id byte */
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#define RMA_CHALLENGE_VKID_BYTE(version, keyid) \
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(((version) << 6) | ((keyid) & 0x3f))
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#define RMA_CHALLENGE_GET_VERSION(vkidbyte) ((vkidbyte) >> 6)
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#define RMA_CHALLENGE_GET_KEY_ID(vkidbyte) ((vkidbyte) & 0x3f)
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struct __packed rma_challenge {
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/* Top 2 bits are protocol version; bottom 6 are server KeyID */
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uint8_t version_key_id;
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/* Ephemeral public key from device */
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uint8_t device_pub_key[32];
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/* Board ID (.type) */
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uint8_t board_id[4];
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/* Device ID */
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uint8_t device_id[8];
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};
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/* Size of encoded challenge and response, and buffer sizes to hold them */
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#define RMA_CHALLENGE_CHARS 80
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#define RMA_CHALLENGE_BUF_SIZE (RMA_CHALLENGE_CHARS + 1)
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#define RMA_AUTHCODE_CHARS 8
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#define RMA_AUTHCODE_BUF_SIZE (RMA_AUTHCODE_CHARS + 1)
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/**
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* Create a new RMA challenge/response
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*
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* @return EC_SUCCESS, EC_ERROR_TIMEOUT if too soon since the last challenge,
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* or other non-zero error code.
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*/
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int rma_create_challenge(void);
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/**
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* Get the current challenge string
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*
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* @return a pointer to the challenge string. String will be empty if there
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* is no active challenge.
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*/
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const char *rma_get_challenge(void);
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/**
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* Try a RMA authorization code
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*
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* @param code Authorization code to try
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* @return EC_SUCCESS if the response was correct, or non-zero error code.
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*/
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int rma_try_authcode(const char *code);
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#endif
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