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/* Copyright (c) 2013 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.
*
* Data structure and API definitions for a verified boot kernel image.
* (Firmware Portion)
*/
#ifndef VBOOT_REFERENCE_VBOOT_KERNEL_H_
#define VBOOT_REFERENCE_VBOOT_KERNEL_H_
#include "cgptlib.h"
#include "gpt_misc.h"
#include "load_kernel_fw.h"
#include "vboot_api.h"
struct vb2_context;
/**
* Attempt loading a kernel from the specified type(s) of disks.
*
* If successful, sets lkp.disk_handle to the disk for the kernel and returns
* VB2_SUCCESS.
*
* @param ctx Vboot context
* @param get_info_flags Flags to pass to VbExDiskGetInfo()
* @return VB2_SUCCESS or the most specific VB2_ERROR_LK error.
*/
vb2_error_t VbTryLoadKernel(struct vb2_context *ctx, uint32_t get_info_flags);
/* Flags for VbUserConfirms() */
#define VB_CONFIRM_MUST_TRUST_KEYBOARD (1 << 0)
#define VB_CONFIRM_SPACE_MEANS_NO (1 << 1)
/**
* Ask the user to confirm something.
*
* We should display whatever the question is first, then call this. ESC is
* always "no", ENTER is always "yes", and we'll specify what SPACE means. We
* don't return until one of those keys is pressed, or until asked to shut
* down.
*
* Additionally, in some situations we don't accept confirmations from an
* untrusted keyboard (such as a USB device). In those cases, a recovery
* button press is needed for confirmation, instead of ENTER.
*
* Returns: 1=yes, 0=no, -1 = shutdown.
*/
int VbUserConfirms(struct vb2_context *ctx, uint32_t confirm_flags);
/**
* Handle a normal boot.
*/
vb2_error_t VbBootNormal(struct vb2_context *ctx);
/**
* Handle a developer-mode boot using legacy clamshell UI.
*/
vb2_error_t VbBootDeveloperLegacyClamshell(struct vb2_context *ctx);
/**
* Handle a diagnostic-mode boot using legacy clamshell UI.
*/
vb2_error_t VbBootDiagnosticLegacyClamshell(struct vb2_context *ctx);
/**
* Handle a recovery-mode boot using legacy clamshell UI.
*/
vb2_error_t VbBootRecoveryLegacyClamshell(struct vb2_context *ctx);
/**
* Handle a developer-mode boot using legacy menu UI.
*/
vb2_error_t VbBootDeveloperLegacyMenu(struct vb2_context *ctx);
/**
* Handle a recovery-mode boot using legacy menu UI.
*/
vb2_error_t VbBootRecoveryLegacyMenu(struct vb2_context *ctx);
/**
* Writes modified secdata spaces and nvdata.
*
* This is a temporary wrapper around vb2ex_commit_data, until secdata-writing
* functions are relocated into depthcharge.
*
* (See chromium:972956, chromium:1006689.)
*
* @param ctx Vboot context
* @returns VB2_SUCCESS, or non-zero error code.
*/
vb2_error_t vb2_commit_data(struct vb2_context *ctx);
#endif /* VBOOT_REFERENCE_VBOOT_KERNEL_H_ */
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