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#!/bin/bash
# Copyright 2018 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.
. "$(dirname "$0")/common.sh"
#######################################
# Return name according to the current signing debug key. The name is used to
# select key files.
# Globals:
# None
# Arguments:
# sha1: signature of the APK.
# keyset: "cheets" or "aosp" build?
# Outputs:
# Writes the name of the key to stdout.
# Returns:
# 0 on success, non-zero on error.
#######################################
android_choose_key() {
local sha1="$1"
local keyset="$2"
if [[ "${keyset}" != "aosp" && "${keyset}" != "cheets" ]]; then
error "Unknown Android build keyset '${keyset}'."
return 1
fi
# Fingerprints below are generated by:
# 'cheets' keyset:
# $ keytool -file vendor/google/certs/cheetskeys/$NAME.x509.pem -printcert \
# | grep SHA1:
# 'aosp' keyset:
# $ keytool -file build/target/product/security/$NAME.x509.pem -printcert \
# | grep SHA1:
declare -A platform_sha=(
['cheets']='AA:04:E0:5F:82:9C:7E:D1:B9:F8:FC:99:6C:5A:54:43:83:D9:F5:BC'
['aosp']='27:19:6E:38:6B:87:5E:76:AD:F7:00:E7:EA:84:E4:C6:EE:E3:3D:FA'
)
declare -A media_sha=(
['cheets']='D4:C4:2D:E0:B9:1B:15:72:FA:7D:A7:21:E0:A6:09:94:B4:4C:B5:AE'
['aosp']='B7:9D:F4:A8:2E:90:B5:7E:A7:65:25:AB:70:37:AB:23:8A:42:F5:D3'
)
declare -A shared_sha=(
['cheets']='38:B6:2C:E1:75:98:E3:E1:1C:CC:F6:6B:83:BB:97:0E:2D:40:6C:AE'
['aosp']='5B:36:8C:FF:2D:A2:68:69:96:BC:95:EA:C1:90:EA:A4:F5:63:0F:E5'
)
declare -A release_sha=(
['cheets']='EC:63:36:20:23:B7:CB:66:18:70:D3:39:3C:A9:AE:7E:EF:A9:32:42'
['aosp']='61:ED:37:7E:85:D3:86:A8:DF:EE:6B:86:4B:D8:5B:0B:FA:A5:AF:81'
)
case "${sha1}" in
"${platform_sha["${keyset}"]}")
echo "platform"
;;
"${media_sha["${keyset}"]}")
echo "media"
;;
"${shared_sha["${keyset}"]}")
echo "shared"
;;
"${release_sha["${keyset}"]}")
# The release_sha[] fingerprint is from devkey. Translate to releasekey.
echo "releasekey"
;;
*)
# Not a framework apk. Do not re-sign.
echo ""
;;
esac
return 0
}
#######################################
# Extract 'ro.build.flavor' property from build property file.
# Globals:
# None
# Arguments:
# build_prop_file: path to build property file.
# Outputs:
# Writes the value of the property to stdout.
# Returns:
# 0 on success, non-zero on error.
#######################################
android_get_build_flavor_prop() {
local build_prop_file="$1"
local flavor_prop=""
if ! flavor_prop=$(grep -a "^ro\.build\.flavor=" "${build_prop_file}"); then
return 1
fi
flavor_prop=$(echo "${flavor_prop}" | cut -d "=" -f2)
echo "${flavor_prop}"
return 0
}
#######################################
# Pick the expected keyset ('cheets', 'aosp') depending on the build flavor.
# Globals:
# None
# Arguments:
# flavor_prop: the value of the build flavor property.
# Outputs:
# Writes the name of the keyset to stdout.
# Returns:
# 0 on success, non-zero on error.
#######################################
android_choose_signing_keyset() {
local flavor_prop="$1"
# Property ro.build.flavor follows those patterns:
# - cheets builds:
# ro.build.flavor=cheets_${arch}-user(debug)
# - SDK builds:
# ro.build.flavor=sdk_google_cheets_${arch}-user(debug) # For N
# ro.build.flavor=sdk_cheets_${arch}-user(debug) # For P
# - AOSP builds:
# ro.build.flavor=aosp_cheets_${arch}-user(debug)
# "cheets" and "SDK" builds both use the same signing keys, cheetskeys. "AOSP"
# builds use the public AOSP signing keys.
if [[ "${flavor_prop}" == aosp_cheets_* ]]; then
keyset="aosp"
elif [[ "${flavor_prop}" == cheets_* ||
"${flavor_prop}" == sdk_cheets_* ||
"${flavor_prop}" == sdk_google_cheets_* ||
"${flavor_prop}" == bertha_* ]]; then
keyset="cheets"
else
return 1
fi
echo "${keyset}"
return 0
}
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