Moves care map generation logic to common.py, so it can be reused.
Test: th Bug: 182296208 Change-Id: I045be7cb208412431d6ab1c26e31d38d2285738b
This commit is contained in:
Kelvin Zhang
Daniel Norman
parent
359f09fd01
commit
2732413fa2
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@ -59,12 +59,11 @@ import zipfile
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import build_image
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import build_super_image
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import common
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import rangelib
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import sparse_img
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import verity_utils
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import ota_metadata_pb2
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from apex_utils import GetSystemApexInfoFromTargetFiles
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from common import AddCareMapForAbOta
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if sys.hexversion < 0x02070000:
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print("Python 2.7 or newer is required.", file=sys.stderr)
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@ -110,45 +109,6 @@ class OutputFile(object):
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common.ZipWrite(self._output_zip, self.name, self._zip_name)
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def GetCareMap(which, imgname):
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"""Returns the care_map string for the given partition.
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Args:
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which: The partition name, must be listed in PARTITIONS_WITH_CARE_MAP.
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imgname: The filename of the image.
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Returns:
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(which, care_map_ranges): care_map_ranges is the raw string of the care_map
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RangeSet; or None.
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"""
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assert which in common.PARTITIONS_WITH_CARE_MAP
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# which + "_image_size" contains the size that the actual filesystem image
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# resides in, which is all that needs to be verified. The additional blocks in
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# the image file contain verity metadata, by reading which would trigger
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# invalid reads.
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image_size = OPTIONS.info_dict.get(which + "_image_size")
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if not image_size:
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return None
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image_blocks = int(image_size) // 4096 - 1
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assert image_blocks > 0, "blocks for {} must be positive".format(which)
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# For sparse images, we will only check the blocks that are listed in the care
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# map, i.e. the ones with meaningful data.
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if "extfs_sparse_flag" in OPTIONS.info_dict:
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simg = sparse_img.SparseImage(imgname)
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care_map_ranges = simg.care_map.intersect(
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rangelib.RangeSet("0-{}".format(image_blocks)))
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# Otherwise for non-sparse images, we read all the blocks in the filesystem
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# image.
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else:
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care_map_ranges = rangelib.RangeSet("0-{}".format(image_blocks))
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return [which, care_map_ranges.to_string_raw()]
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def AddSystem(output_zip, recovery_img=None, boot_img=None):
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"""Turn the contents of SYSTEM into a system image and store it in
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output_zip. Returns the name of the system image file."""
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@ -644,72 +604,6 @@ def CheckAbOtaImages(output_zip, ab_partitions):
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assert available, "Failed to find " + img_name
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def AddCareMapForAbOta(output_zip, ab_partitions, image_paths):
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"""Generates and adds care_map.pb for a/b partition that has care_map.
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Args:
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output_zip: The output zip file (needs to be already open), or None to
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write care_map.pb to OPTIONS.input_tmp/.
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ab_partitions: The list of A/B partitions.
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image_paths: A map from the partition name to the image path.
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"""
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care_map_list = []
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for partition in ab_partitions:
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partition = partition.strip()
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if partition not in common.PARTITIONS_WITH_CARE_MAP:
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continue
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verity_block_device = "{}_verity_block_device".format(partition)
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avb_hashtree_enable = "avb_{}_hashtree_enable".format(partition)
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if (verity_block_device in OPTIONS.info_dict or
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OPTIONS.info_dict.get(avb_hashtree_enable) == "true"):
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image_path = image_paths[partition]
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assert os.path.exists(image_path)
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care_map = GetCareMap(partition, image_path)
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if not care_map:
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continue
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care_map_list += care_map
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# adds fingerprint field to the care_map
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# TODO(xunchang) revisit the fingerprint calculation for care_map.
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partition_props = OPTIONS.info_dict.get(partition + ".build.prop")
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prop_name_list = ["ro.{}.build.fingerprint".format(partition),
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"ro.{}.build.thumbprint".format(partition)]
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present_props = [x for x in prop_name_list if
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partition_props and partition_props.GetProp(x)]
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if not present_props:
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logger.warning("fingerprint is not present for partition %s", partition)
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property_id, fingerprint = "unknown", "unknown"
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else:
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property_id = present_props[0]
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fingerprint = partition_props.GetProp(property_id)
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care_map_list += [property_id, fingerprint]
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if not care_map_list:
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return
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# Converts the list into proto buf message by calling care_map_generator; and
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# writes the result to a temp file.
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temp_care_map_text = common.MakeTempFile(prefix="caremap_text-",
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suffix=".txt")
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with open(temp_care_map_text, 'w') as text_file:
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text_file.write('\n'.join(care_map_list))
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temp_care_map = common.MakeTempFile(prefix="caremap-", suffix=".pb")
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care_map_gen_cmd = ["care_map_generator", temp_care_map_text, temp_care_map]
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common.RunAndCheckOutput(care_map_gen_cmd)
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care_map_path = "META/care_map.pb"
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if output_zip and care_map_path not in output_zip.namelist():
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common.ZipWrite(output_zip, temp_care_map, arcname=care_map_path)
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else:
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shutil.copy(temp_care_map, os.path.join(OPTIONS.input_tmp, care_map_path))
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if output_zip:
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OPTIONS.replace_updated_files_list.append(care_map_path)
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def AddPackRadioImages(output_zip, images):
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"""Copies images listed in META/pack_radioimages.txt from RADIO/ to IMAGES/.
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@ -1050,7 +944,9 @@ def AddImagesToTargetFiles(filename):
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# Generate care_map.pb for ab_partitions, then write this file to
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# target_files package.
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AddCareMapForAbOta(output_zip, ab_partitions, partitions)
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output_care_map = os.path.join(OPTIONS.input_tmp, "META", "care_map.pb")
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AddCareMapForAbOta(output_zip if output_zip else output_care_map,
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ab_partitions, partitions)
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# Radio images that need to be packed into IMAGES/, and product-img.zip.
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pack_radioimages_txt = os.path.join(
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@ -41,6 +41,7 @@ import zipfile
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from hashlib import sha1, sha256
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import images
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import rangelib
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import sparse_img
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from blockimgdiff import BlockImageDiff
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@ -3759,3 +3760,124 @@ def GetBootImageTimestamp(boot_img):
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except ExternalError as e:
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logger.warning('Unable to get boot image timestamp: %s', e)
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return None
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def GetCareMap(which, imgname):
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"""Returns the care_map string for the given partition.
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Args:
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which: The partition name, must be listed in PARTITIONS_WITH_CARE_MAP.
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imgname: The filename of the image.
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Returns:
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(which, care_map_ranges): care_map_ranges is the raw string of the care_map
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RangeSet; or None.
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"""
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assert which in PARTITIONS_WITH_CARE_MAP
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# which + "_image_size" contains the size that the actual filesystem image
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# resides in, which is all that needs to be verified. The additional blocks in
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# the image file contain verity metadata, by reading which would trigger
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# invalid reads.
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image_size = OPTIONS.info_dict.get(which + "_image_size")
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if not image_size:
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return None
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image_blocks = int(image_size) // 4096 - 1
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assert image_blocks > 0, "blocks for {} must be positive".format(which)
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# For sparse images, we will only check the blocks that are listed in the care
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# map, i.e. the ones with meaningful data.
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if "extfs_sparse_flag" in OPTIONS.info_dict:
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simg = sparse_img.SparseImage(imgname)
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care_map_ranges = simg.care_map.intersect(
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rangelib.RangeSet("0-{}".format(image_blocks)))
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# Otherwise for non-sparse images, we read all the blocks in the filesystem
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# image.
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else:
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care_map_ranges = rangelib.RangeSet("0-{}".format(image_blocks))
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return [which, care_map_ranges.to_string_raw()]
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def AddCareMapForAbOta(output_file, ab_partitions, image_paths):
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"""Generates and adds care_map.pb for a/b partition that has care_map.
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Args:
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output_file: The output zip file (needs to be already open),
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or file path to write care_map.pb.
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ab_partitions: The list of A/B partitions.
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image_paths: A map from the partition name to the image path.
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"""
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if not output_file:
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raise ExternalError('Expected output_file for AddCareMapForAbOta')
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care_map_list = []
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for partition in ab_partitions:
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partition = partition.strip()
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if partition not in PARTITIONS_WITH_CARE_MAP:
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continue
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verity_block_device = "{}_verity_block_device".format(partition)
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avb_hashtree_enable = "avb_{}_hashtree_enable".format(partition)
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if (verity_block_device in OPTIONS.info_dict or
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OPTIONS.info_dict.get(avb_hashtree_enable) == "true"):
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if partition not in image_paths:
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logger.warning('Potential partition with care_map missing from images: %s',
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partition)
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continue
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image_path = image_paths[partition]
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if not os.path.exists(image_path):
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raise ExternalError('Expected image at path {}'.format(image_path))
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care_map = GetCareMap(partition, image_path)
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if not care_map:
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continue
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care_map_list += care_map
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# adds fingerprint field to the care_map
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# TODO(xunchang) revisit the fingerprint calculation for care_map.
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partition_props = OPTIONS.info_dict.get(partition + ".build.prop")
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prop_name_list = ["ro.{}.build.fingerprint".format(partition),
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"ro.{}.build.thumbprint".format(partition)]
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present_props = [x for x in prop_name_list if
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partition_props and partition_props.GetProp(x)]
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if not present_props:
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logger.warning(
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"fingerprint is not present for partition %s", partition)
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property_id, fingerprint = "unknown", "unknown"
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else:
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property_id = present_props[0]
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fingerprint = partition_props.GetProp(property_id)
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care_map_list += [property_id, fingerprint]
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if not care_map_list:
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return
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# Converts the list into proto buf message by calling care_map_generator; and
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# writes the result to a temp file.
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temp_care_map_text = MakeTempFile(prefix="caremap_text-",
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suffix=".txt")
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with open(temp_care_map_text, 'w') as text_file:
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text_file.write('\n'.join(care_map_list))
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temp_care_map = MakeTempFile(prefix="caremap-", suffix=".pb")
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care_map_gen_cmd = ["care_map_generator", temp_care_map_text, temp_care_map]
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RunAndCheckOutput(care_map_gen_cmd)
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if not isinstance(output_file, zipfile.ZipFile):
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shutil.copy(temp_care_map, output_file)
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return
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# output_file is a zip file
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care_map_path = "META/care_map.pb"
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if care_map_path in output_file.namelist():
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# Copy the temp file into the OPTIONS.input_tmp dir and update the
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# replace_updated_files_list used by add_img_to_target_files
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if not OPTIONS.replace_updated_files_list:
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OPTIONS.replace_updated_files_list = []
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shutil.copy(temp_care_map, os.path.join(OPTIONS.input_tmp, care_map_path))
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OPTIONS.replace_updated_files_list.append(care_map_path)
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else:
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ZipWrite(output_file, temp_care_map, arcname=care_map_path)
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@ -21,9 +21,10 @@ import zipfile
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import common
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import test_utils
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from add_img_to_target_files import (
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AddCareMapForAbOta, AddPackRadioImages,
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CheckAbOtaImages, GetCareMap)
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AddPackRadioImages,
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CheckAbOtaImages)
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from rangelib import RangeSet
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from common import AddCareMapForAbOta, GetCareMap
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OPTIONS = common.OPTIONS
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@ -174,9 +175,9 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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def test_AddCareMapForAbOta(self):
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image_paths = self._test_AddCareMapForAbOta()
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(),
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"ro.system.build.fingerprint",
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"google/sailfish/12345:user/dev-keys",
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@ -191,10 +192,10 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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"""Partitions without care_map should be ignored."""
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image_paths = self._test_AddCareMapForAbOta()
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AddCareMapForAbOta(
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None, ['boot', 'system', 'vendor', 'vbmeta'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(
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care_map_file, ['boot', 'system', 'vendor', 'vbmeta'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(),
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"ro.system.build.fingerprint",
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"google/sailfish/12345:user/dev-keys",
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@ -226,9 +227,9 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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),
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}
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(),
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"ro.system.build.fingerprint",
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"google/sailfish/12345:user/dev-keys",
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@ -250,9 +251,9 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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'vendor_verity_block_device': '/dev/block/vendor',
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}
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(), "unknown",
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"unknown", 'vendor', RangeSet("0-9").to_string_raw(), "unknown",
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"unknown"]
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@ -281,9 +282,9 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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),
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}
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(),
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"ro.system.build.thumbprint",
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"google/sailfish/123:user/dev-keys",
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@ -300,9 +301,9 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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# Remove vendor_image_size to invalidate the care_map for vendor.img.
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del OPTIONS.info_dict['vendor_image_size']
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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expected = ['system', RangeSet("0-5 10-15").to_string_raw(),
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"ro.system.build.fingerprint",
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"google/sailfish/12345:user/dev-keys"]
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@ -317,25 +318,26 @@ class AddImagesToTargetFilesTest(test_utils.ReleaseToolsTestCase):
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del OPTIONS.info_dict['system_image_size']
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del OPTIONS.info_dict['vendor_image_size']
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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self.assertFalse(
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os.path.exists(os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')))
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self.assertFalse(os.path.exists(care_map_file))
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def test_AddCareMapForAbOta_verityNotEnabled(self):
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"""No care_map.pb should be generated if verity not enabled."""
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image_paths = self._test_AddCareMapForAbOta()
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OPTIONS.info_dict = {}
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AddCareMapForAbOta(None, ['system', 'vendor'], image_paths)
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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AddCareMapForAbOta(care_map_file, ['system', 'vendor'], image_paths)
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self.assertFalse(os.path.exists(care_map_file))
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def test_AddCareMapForAbOta_missingImageFile(self):
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"""Missing image file should be considered fatal."""
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image_paths = self._test_AddCareMapForAbOta()
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image_paths['vendor'] = ''
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self.assertRaises(AssertionError, AddCareMapForAbOta, None,
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care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.pb')
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self.assertRaises(common.ExternalError, AddCareMapForAbOta, care_map_file,
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['system', 'vendor'], image_paths)
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@test_utils.SkipIfExternalToolsUnavailable()
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