diff options
| author | Randall Spangler <rspangler@chromium.org> | 2013-02-26 11:03:57 -0800 |
|---|---|---|
| committer | ChromeBot <chrome-bot@google.com> | 2013-02-26 12:59:12 -0800 |
| commit | 93943266c597ad66300445a04afa01270f2b5763 (patch) | |
| tree | bf7034285aa5679373a0e430945a929a819bcf9e /firmware/lib/vboot_common_init.c | |
| parent | ab63d3c20b8be3f610fff454260f02ab1d7c02b6 (diff) | |
| download | vboot-93943266c597ad66300445a04afa01270f2b5763.tar.gz | |
Split off modules required for VbInit() and VbSelectFirmware()
This makes it more obvious which modules and VbEx*() functions must be
implemented to call these entry points.
This change only moves functions between modules and adds two
link-test binaries; it doesn't change any functionality.
BUG=chromium-os:39262
BRANCH=none
TEST=make && make runtests
Change-Id: If3edf0b1989b631f0e7ad18de7ccdad8315181b5
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/44076
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'firmware/lib/vboot_common_init.c')
| -rw-r--r-- | firmware/lib/vboot_common_init.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/firmware/lib/vboot_common_init.c b/firmware/lib/vboot_common_init.c new file mode 100644 index 00000000..9d6670ea --- /dev/null +++ b/firmware/lib/vboot_common_init.c @@ -0,0 +1,43 @@ +/* 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. + * + * Common functions between firmware and kernel verified boot. + * (Firmware portion) + */ + +#include "vboot_api.h" +#include "vboot_common.h" +#include "utility.h" + +int VbSharedDataInit(VbSharedDataHeader *header, uint64_t size) +{ + VBDEBUG(("VbSharedDataInit, %d bytes, header %d bytes\n", (int)size, + sizeof(VbSharedDataHeader))); + + if (size < sizeof(VbSharedDataHeader)) { + VBDEBUG(("Not enough data for header.\n")); + return VBOOT_SHARED_DATA_INVALID; + } + if (size < VB_SHARED_DATA_MIN_SIZE) { + VBDEBUG(("Shared data buffer too small.\n")); + return VBOOT_SHARED_DATA_INVALID; + } + + if (!header) + return VBOOT_SHARED_DATA_INVALID; + + /* Zero the header */ + Memset(header, 0, sizeof(VbSharedDataHeader)); + + /* Initialize fields */ + header->magic = VB_SHARED_DATA_MAGIC; + header->struct_version = VB_SHARED_DATA_VERSION; + header->struct_size = sizeof(VbSharedDataHeader); + header->data_size = size; + header->data_used = sizeof(VbSharedDataHeader); + header->firmware_index = 0xFF; + + /* Success */ + return VBOOT_SUCCESS; +} |