diff options
Diffstat (limited to 'firmware/lib/region-kernel.c')
| -rw-r--r-- | firmware/lib/region-kernel.c | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/firmware/lib/region-kernel.c b/firmware/lib/region-kernel.c deleted file mode 100644 index 3d7cb84a..00000000 --- a/firmware/lib/region-kernel.c +++ /dev/null @@ -1,199 +0,0 @@ -/* 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. - * - * High-level firmware API for loading and verifying rewritable firmware. - * (Firmware portion) - */ - -#include "sysincludes.h" - -#include "bmpblk_header.h" -#include "region.h" -#include "gbb_header.h" -#include "load_kernel_fw.h" -#include "utility.h" -#include "vboot_api.h" -#include "vboot_struct.h" - -static VbError_t VbRegionReadGbb(VbCommonParams *cparams, uint32_t offset, - uint32_t size, void *buf) -{ - return VbRegionReadData(cparams, VB_REGION_GBB, offset, size, buf); -} - -VbError_t VbGbbReadBmpHeader(VbCommonParams *cparams, BmpBlockHeader *hdr_ret) -{ - BmpBlockHeader *hdr; - VbError_t ret; - - if (!cparams) - return VBERROR_INVALID_GBB; - if (!cparams->bmp) { - GoogleBinaryBlockHeader *gbb = cparams->gbb; - - if (0 == gbb->bmpfv_size) - return VBERROR_INVALID_GBB; - - hdr = VbExMalloc(sizeof(*hdr)); - ret = VbRegionReadGbb(cparams, gbb->bmpfv_offset, - sizeof(BmpBlockHeader), hdr); - if (ret) { - VbExFree(hdr); - return ret; - } - - /* Sanity-check the bitmap block header */ - if ((0 != Memcmp(hdr->signature, BMPBLOCK_SIGNATURE, - BMPBLOCK_SIGNATURE_SIZE)) || - (hdr->major_version > BMPBLOCK_MAJOR_VERSION) || - ((hdr->major_version == BMPBLOCK_MAJOR_VERSION) && - (hdr->minor_version > BMPBLOCK_MINOR_VERSION))) { - VBDEBUG(("VbDisplayScreenFromGBB(): " - "invalid/too new bitmap header\n")); - VbExFree(hdr); - return VBERROR_INVALID_BMPFV; - } - cparams->bmp = hdr; - } - - *hdr_ret = *cparams->bmp; - return VBERROR_SUCCESS; -} - -VbError_t VbRegionReadHWID(VbCommonParams *cparams, char *hwid, - uint32_t max_size) -{ - GoogleBinaryBlockHeader *gbb; - VbError_t ret; - - if (!max_size) - return VBERROR_INVALID_PARAMETER; - *hwid = '\0'; - StrnAppend(hwid, "{INVALID}", max_size); - if (!cparams) - return VBERROR_INVALID_GBB; - - gbb = cparams->gbb; - - if (0 == gbb->hwid_size) { - VBDEBUG(("VbHWID(): invalid hwid size\n")); - return VBERROR_SUCCESS; /* oddly enough! */ - } - - if (gbb->hwid_size > max_size) { - VBDEBUG(("VbDisplayDebugInfo(): invalid hwid offset/size\n")); - return VBERROR_INVALID_PARAMETER; - } - ret = VbRegionReadGbb(cparams, gbb->hwid_offset, gbb->hwid_size, hwid); - if (ret) - return ret; - - return VBERROR_SUCCESS; -} - -VbError_t VbGbbReadImage(VbCommonParams *cparams, - uint32_t localization, uint32_t screen_index, - uint32_t image_num, ScreenLayout *layout, - ImageInfo *image_info, char **image_datap, - uint32_t *image_data_sizep) -{ - uint32_t layout_offset, image_offset, data_offset, data_size; - GoogleBinaryBlockHeader *gbb; - BmpBlockHeader hdr; - void *data = NULL; - VbError_t ret; - - if (!cparams) - return VBERROR_INVALID_GBB; - - ret = VbGbbReadBmpHeader(cparams, &hdr); - if (ret) - return ret; - - gbb = cparams->gbb; - layout_offset = gbb->bmpfv_offset + sizeof(BmpBlockHeader) + - localization * hdr.number_of_screenlayouts * - sizeof(ScreenLayout) + - screen_index * sizeof(ScreenLayout); - ret = VbRegionReadGbb(cparams, layout_offset, sizeof(*layout), layout); - if (ret) - return ret; - - if (!layout->images[image_num].image_info_offset) - return VBERROR_NO_IMAGE_PRESENT; - - image_offset = gbb->bmpfv_offset + - layout->images[image_num].image_info_offset; - ret = VbRegionReadGbb(cparams, image_offset, sizeof(*image_info), - image_info); - if (ret) - return ret; - - data_offset = image_offset + sizeof(*image_info); - data_size = image_info->compressed_size; - if (data_size) { - void *orig_data; - - data = VbExMalloc(image_info->compressed_size); - ret = VbRegionReadGbb(cparams, data_offset, - image_info->compressed_size, data); - if (ret) { - VbExFree(data); - return ret; - } - if (image_info->compression != COMPRESS_NONE) { - uint32_t inoutsize = image_info->original_size; - - orig_data = VbExMalloc(image_info->original_size); - ret = VbExDecompress(data, - image_info->compressed_size, - image_info->compression, - orig_data, &inoutsize); - data_size = inoutsize; - VbExFree(data); - data = orig_data; - if (ret) { - VbExFree(data); - return ret; - } - } - } - - *image_datap = data; - *image_data_sizep = data_size; - - return VBERROR_SUCCESS; -} - -#define OUTBUF_LEN 128 - -void VbRegionCheckVersion(VbCommonParams *cparams) -{ - GoogleBinaryBlockHeader *gbb; - - if (!cparams) - return; - - gbb = cparams->gbb; - - /* - * If GBB flags is nonzero, complain because that's something that the - * factory MUST fix before shipping. We only have to do this here, - * because it's obvious that something is wrong if we're not displaying - * screens from the GBB. - */ - if (gbb->major_version == GBB_MAJOR_VER && gbb->minor_version >= 1 && - (gbb->flags != 0)) { - uint32_t used = 0; - char outbuf[OUTBUF_LEN]; - - *outbuf = '\0'; - used += StrnAppend(outbuf + used, "gbb.flags is nonzero: 0x", - OUTBUF_LEN - used); - used += Uint64ToString(outbuf + used, OUTBUF_LEN - used, - gbb->flags, 16, 8); - used += StrnAppend(outbuf + used, "\n", OUTBUF_LEN - used); - (void)VbExDisplayDebugInfo(outbuf); - } -} |