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224f5ac761
Error codes reported by 2common.c are now very specific, and tests verify the proper errors are reported. BUG=chromium:370082 BRANCH=none TEST=make clean && VBOOT2=1 COV=1 make Change-Id: I9480bd22b60ae339196c92918a8a984a9f05ac1a Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/202938 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* Copyright (c) 2014 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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* Misc functions which need access to vb2_context but are not public APIs
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*/
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#include "2sysincludes.h"
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#include "2api.h"
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#include "2common.h"
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#include "2misc.h"
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#include "2nvstorage.h"
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#include "2secdata.h"
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#include "2sha.h"
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#include "2rsa.h"
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int vb2_init_context(struct vb2_context *ctx)
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{
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struct vb2_shared_data *sd = vb2_get_sd(ctx);
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/* Don't do anything if the context has already been initialized */
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if (ctx->workbuf_used)
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return VB2_SUCCESS;
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/*
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* Workbuf had better be big enough for our shared data struct and
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* aligned. Not much we can do if it isn't; we'll die before we can
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* store a recovery reason.
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*/
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if (ctx->workbuf_size < sizeof(*sd))
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return VB2_ERROR_INITCTX_WORKBUF_SMALL;
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if (!vb_aligned(ctx->workbuf, sizeof(uint32_t)))
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return VB2_ERROR_INITCTX_WORKBUF_ALIGN;
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/* Initialize the shared data at the start of the work buffer */
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memset(sd, 0, sizeof(*sd));
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ctx->workbuf_used = sizeof(*sd);
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return VB2_SUCCESS;
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}
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