Merge changes I7a2dd830,I6ce43725,I5fc2f370,Ibc2e14bd,Idf213800, ...
* changes:
fs_mgr_remount: support legacy devices (marlin)
fs_mgr: remount: add -R argument
fs_mgr: remount: add -T fstab argument
fs_mgr: remount: log to stderr and logd
fs_mgr: add remount command
fs_mgr: overlayfs: test: add inRecovery check
diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index 974e13e..4ee9624 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -111,3 +111,35 @@
"libgsi_headers",
],
}
+
+cc_binary {
+ name: "remount",
+ defaults: ["fs_mgr_defaults"],
+ static_libs: [
+ "libavb_user",
+ ],
+ shared_libs: [
+ "libbootloader_message",
+ "libbase",
+ "libcrypto",
+ "libfec",
+ "libfs_mgr",
+ ],
+ header_libs: [
+ "libcutils_headers",
+ ],
+ srcs: [
+ "fs_mgr_remount.cpp",
+ ],
+ cppflags: [
+ "-DALLOW_ADBD_DISABLE_VERITY=0",
+ ],
+ product_variables: {
+ debuggable: {
+ cppflags: [
+ "-UALLOW_ADBD_DISABLE_VERITY",
+ "-DALLOW_ADBD_DISABLE_VERITY=1",
+ ],
+ },
+ },
+}
diff --git a/fs_mgr/fs_mgr_remount.cpp b/fs_mgr/fs_mgr_remount.cpp
new file mode 100644
index 0000000..c0e0ccd
--- /dev/null
+++ b/fs_mgr/fs_mgr_remount.cpp
@@ -0,0 +1,348 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <libavb_user/libavb_user.h>
+#include <stdio.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/properties.h>
+#include <android-base/strings.h>
+#include <bootloader_message/bootloader_message.h>
+#include <cutils/android_reboot.h>
+#include <fec/io.h>
+#include <fs_mgr_overlayfs.h>
+#include <fs_mgr_priv.h>
+#include <fstab/fstab.h>
+
+namespace {
+
+[[noreturn]] void usage(int exit_status) {
+ LOG(INFO) << getprogname()
+ << " [-h] [-R] [-T fstab_file]\n"
+ "\t-h --help\tthis help\n"
+ "\t-R --reboot\tdisable verity & reboot to facilitate remount\n"
+ "\t-T --fstab\tcustom fstab file location\n"
+ "\n"
+ "Remount all partitions read-write.\n"
+ "-R notwithstanding, verity must be disabled.";
+
+ ::exit(exit_status);
+}
+
+bool remountable_partition(const android::fs_mgr::FstabEntry& entry) {
+ if (entry.fs_mgr_flags.vold_managed) return false;
+ if (entry.fs_mgr_flags.recovery_only) return false;
+ if (entry.fs_mgr_flags.slot_select_other) return false;
+ if (!(entry.flags & MS_RDONLY)) return false;
+ if (entry.fs_type == "vfat") return false;
+ return true;
+}
+
+const std::string system_mount_point(const android::fs_mgr::FstabEntry& entry) {
+ if (entry.mount_point == "/") return "/system";
+ return entry.mount_point;
+}
+
+const android::fs_mgr::FstabEntry* is_wrapped(const android::fs_mgr::Fstab& overlayfs_candidates,
+ const android::fs_mgr::FstabEntry& entry) {
+ auto mount_point = system_mount_point(entry);
+ auto it = std::find_if(overlayfs_candidates.begin(), overlayfs_candidates.end(),
+ [&mount_point](const auto& entry) {
+ return android::base::StartsWith(mount_point,
+ system_mount_point(entry) + "/");
+ });
+ if (it == overlayfs_candidates.end()) return nullptr;
+ return &(*it);
+}
+
+void try_unmount_bionic(android::fs_mgr::Fstab* mounts) {
+ static constexpr const char* kBionic = "/bionic";
+
+ auto entry = GetEntryForMountPoint(mounts, kBionic);
+ if (!entry) return;
+
+ struct statfs buf;
+ if (::statfs(kBionic, &buf) == -1) {
+ PLOG(ERROR) << "statfs of " << kBionic;
+ return;
+ }
+ if (buf.f_flags & MS_RDONLY) {
+ // /bionic is on a read-only partition; can happen for
+ // non-system-as-root-devices. Don' try to unmount.
+ return;
+ }
+ fs_mgr_set_blk_ro(entry->blk_device, false);
+ if (::mount(entry->blk_device.c_str(), entry->mount_point.c_str(), entry->fs_type.c_str(),
+ MS_REMOUNT, nullptr) == -1) {
+ PLOG(ERROR) << "remount of " << kBionic;
+ }
+}
+
+void MyLogger(android::base::LogId id, android::base::LogSeverity severity, const char* tag,
+ const char* file, unsigned int line, const char* message) {
+ static const char log_characters[] = "VD\0WEFF";
+ if (severity < sizeof(log_characters)) {
+ auto severity_char = log_characters[severity];
+ if (severity_char) fprintf(stderr, "%c ", severity_char);
+ }
+ fprintf(stderr, "%s\n", message);
+
+ static auto logd = android::base::LogdLogger();
+ logd(id, severity, tag, file, line, message);
+}
+
+[[noreturn]] void reboot(bool dedupe) {
+ if (dedupe) {
+ LOG(INFO) << "The device will now reboot to recovery and attempt un-deduplication.";
+ } else {
+ LOG(INFO) << "Successfully disabled verity\nrebooting device";
+ }
+ ::sync();
+ android::base::SetProperty(ANDROID_RB_PROPERTY, dedupe ? "reboot,recovery" : "reboot,remount");
+ ::sleep(60);
+ ::exit(0); // SUCCESS
+}
+
+} // namespace
+
+int main(int argc, char* argv[]) {
+ android::base::InitLogging(argv, MyLogger);
+
+ enum {
+ SUCCESS,
+ NOT_USERDEBUG,
+ BADARG,
+ NOT_ROOT,
+ NO_FSTAB,
+ VERITY_PARTITION,
+ BAD_OVERLAY,
+ NO_MOUNTS,
+ REMOUNT_FAILED,
+ } retval = SUCCESS;
+
+ // If somehow this executable is delivered on a "user" build, it can
+ // not function, so providing a clear message to the caller rather than
+ // letting if fall through and provide a lot of confusing failure messages.
+ if (!ALLOW_ADBD_DISABLE_VERITY || (android::base::GetProperty("ro.debuggable", "0") != "1")) {
+ LOG(ERROR) << "only functions on userdebug or eng builds";
+ return NOT_USERDEBUG;
+ }
+
+ const char* fstab_file = nullptr;
+ auto can_reboot = false;
+
+ struct option longopts[] = {
+ {"fstab", required_argument, nullptr, 'T'},
+ {"help", no_argument, nullptr, 'h'},
+ {"reboot", no_argument, nullptr, 'R'},
+ {0, 0, nullptr, 0},
+ };
+ for (int opt; (opt = ::getopt_long(argc, argv, "hRT:", longopts, nullptr)) != -1;) {
+ switch (opt) {
+ case 'R':
+ can_reboot = true;
+ break;
+ case 'T':
+ if (fstab_file) {
+ LOG(ERROR) << "Cannot supply two fstabs: -T " << fstab_file << " -T" << optarg;
+ usage(BADARG);
+ }
+ fstab_file = optarg;
+ break;
+ default:
+ LOG(ERROR) << "Bad Argument -" << char(opt);
+ usage(BADARG);
+ break;
+ case 'h':
+ usage(SUCCESS);
+ break;
+ }
+ }
+
+ if (argc > optind) {
+ LOG(ERROR) << "Bad Argument " << argv[optind];
+ usage(BADARG);
+ }
+
+ // Make sure we are root.
+ if (::getuid() != 0) {
+ LOG(ERROR) << "must be run as root";
+ return NOT_ROOT;
+ }
+
+ // Read the selected fstab.
+ android::fs_mgr::Fstab fstab;
+ auto fstab_read = false;
+ if (fstab_file) {
+ fstab_read = android::fs_mgr::ReadFstabFromFile(fstab_file, &fstab);
+ } else {
+ fstab_read = android::fs_mgr::ReadDefaultFstab(&fstab);
+ }
+ if (!fstab_read || fstab.empty()) {
+ PLOG(ERROR) << "Failed to read fstab";
+ return NO_FSTAB;
+ }
+
+ // Generate the list of supported overlayfs mount points.
+ auto overlayfs_candidates = fs_mgr_overlayfs_candidate_list(fstab);
+
+ // Generate the all remountable partitions sub-list
+ android::fs_mgr::Fstab partitions;
+ for (auto const& entry : fstab) {
+ if (!remountable_partition(entry)) continue;
+ if (overlayfs_candidates.empty() ||
+ GetEntryForMountPoint(&overlayfs_candidates, entry.mount_point) ||
+ (is_wrapped(overlayfs_candidates, entry) == nullptr)) {
+ partitions.emplace_back(entry);
+ }
+ }
+
+ // Check verity and optionally setup overlayfs backing.
+ auto reboot_later = false;
+ for (auto it = partitions.begin(); it != partitions.end();) {
+ auto& entry = *it;
+ auto& mount_point = entry.mount_point;
+ if (fs_mgr_is_verity_enabled(entry)) {
+ LOG(WARNING) << "Verity enabled on " << mount_point;
+ if (can_reboot &&
+ (android::base::GetProperty("ro.boot.vbmeta.devices_state", "") != "locked")) {
+ if (AvbOps* ops = avb_ops_user_new()) {
+ auto ret = avb_user_verity_set(
+ ops, android::base::GetProperty("ro.boot.slot_suffix", "").c_str(),
+ false);
+ avb_ops_user_free(ops);
+ if (ret) {
+ if (fs_mgr_overlayfs_valid() == OverlayfsValidResult::kNotSupported) {
+ retval = VERITY_PARTITION;
+ // w/o overlayfs available, also check for dedupe
+ reboot_later = true;
+ ++it;
+ continue;
+ }
+ reboot(false);
+ } else if (fs_mgr_set_blk_ro(entry.blk_device, false)) {
+ fec::io fh(entry.blk_device.c_str(), O_RDWR);
+ if (fh && fh.set_verity_status(false)) reboot_later = true;
+ }
+ }
+ }
+ LOG(ERROR) << "Skipping " << mount_point;
+ retval = VERITY_PARTITION;
+ it = partitions.erase(it);
+ continue;
+ }
+
+ auto change = false;
+ errno = 0;
+ if (fs_mgr_overlayfs_setup(nullptr, mount_point.c_str(), &change)) {
+ if (change) {
+ LOG(INFO) << "Using overlayfs for " << mount_point;
+ }
+ } else if (errno) {
+ PLOG(ERROR) << "Overlayfs setup for " << mount_point << " failed, skipping";
+ retval = BAD_OVERLAY;
+ it = partitions.erase(it);
+ continue;
+ }
+ ++it;
+ }
+
+ if (partitions.empty()) {
+ if (reboot_later) reboot(false);
+ LOG(WARNING) << "No partitions to remount";
+ return retval;
+ }
+
+ // Mount overlayfs.
+ if (!fs_mgr_overlayfs_mount_all(&partitions)) {
+ retval = BAD_OVERLAY;
+ PLOG(ERROR) << "Can not mount overlayfs for partitions";
+ }
+
+ // Get actual mounts _after_ overlayfs has been added.
+ android::fs_mgr::Fstab mounts;
+ if (!android::fs_mgr::ReadFstabFromFile("/proc/mounts", &mounts) || mounts.empty()) {
+ PLOG(ERROR) << "Failed to read /proc/mounts";
+ retval = NO_MOUNTS;
+ }
+
+ // Remount selected partitions.
+ for (auto& entry : partitions) {
+ // unlock the r/o key for the mount point device
+ if (entry.fs_mgr_flags.logical) {
+ fs_mgr_update_logical_partition(&entry);
+ }
+ auto blk_device = entry.blk_device;
+ auto mount_point = entry.mount_point;
+
+ for (auto it = mounts.rbegin(); it != mounts.rend(); ++it) {
+ auto& rentry = *it;
+ if (mount_point == rentry.mount_point) {
+ blk_device = rentry.blk_device;
+ break;
+ }
+ if ((mount_point == "/") && (rentry.mount_point == "/system")) {
+ if (blk_device != "/dev/root") blk_device = rentry.blk_device;
+ mount_point = "/system";
+ break;
+ }
+ }
+ fs_mgr_set_blk_ro(blk_device, false);
+
+ // Now remount!
+ if (::mount(blk_device.c_str(), mount_point.c_str(), entry.fs_type.c_str(), MS_REMOUNT,
+ nullptr) == 0) {
+ continue;
+ }
+ if ((errno == EINVAL) && (mount_point != entry.mount_point)) {
+ mount_point = entry.mount_point;
+ if (::mount(blk_device.c_str(), mount_point.c_str(), entry.fs_type.c_str(), MS_REMOUNT,
+ nullptr) == 0) {
+ continue;
+ }
+ }
+ PLOG(WARNING) << "failed to remount partition dev:" << blk_device << " mnt:" << mount_point;
+ // If errno = EROFS at this point, we are dealing with r/o
+ // filesystem types like squashfs, erofs or ext4 dedupe. We will
+ // consider such a device that does not have CONFIG_OVERLAY_FS
+ // in the kernel as a misconfigured; except for ext4 dedupe.
+ if ((errno == EROFS) && can_reboot) {
+ const std::vector<std::string> msg = {"--fsck_unshare_blocks"};
+ std::string err;
+ if (write_bootloader_message(msg, &err)) reboot(true);
+ LOG(ERROR) << "Failed to set bootloader message: " << err;
+ errno = EROFS;
+ }
+ retval = REMOUNT_FAILED;
+ }
+
+ if (reboot_later) reboot(false);
+
+ try_unmount_bionic(&mounts);
+
+ return retval;
+}
diff --git a/fs_mgr/tests/adb-remount-test.sh b/fs_mgr/tests/adb-remount-test.sh
index fd53ed4..1ded954 100755
--- a/fs_mgr/tests/adb-remount-test.sh
+++ b/fs_mgr/tests/adb-remount-test.sh
@@ -70,19 +70,37 @@
Returns: true if device is in adb mode" ]
inAdb() {
adb devices |
- grep -v -e 'List of devices attached' -e '^$' |
+ grep -v -e 'List of devices attached' -e '^$' -e "[${SPACE}${TAB}]recovery\$" |
if [ -n "${ANDROID_SERIAL}" ]; then
grep "^${ANDROID_SERIAL}[${SPACE}${TAB}]" > /dev/null
else
wc -l | grep '^1$' >/dev/null
fi
}
+[ "USAGE: inRecovery
+
+Returns: true if device is in recovery mode" ]
+inRecovery() {
+ local list="`adb devices |
+ grep -v -e 'List of devices attached' -e '^$'`"
+ if [ -n "${ANDROID_SERIAL}" ]; then
+ echo "${list}" |
+ grep "^${ANDROID_SERIAL}[${SPACE}${TAB}][${SPACE}${TAB}]*recovery\$" >/dev/null
+ return ${?}
+ fi
+ if echo "${list}" | wc -l | grep '^1$' >/dev/null; then
+ echo "${list}" |
+ grep "[${SPACE}${TAB}]recovery\$" >/dev/null
+ return ${?}
+ fi
+ false
+}
[ "USAGE: adb_sh <commands> </dev/stdin >/dev/stdout 2>/dev/stderr
Returns: true if the command succeeded" ]
adb_sh() {
- args=
+ local args=
for i in "${@}"; do
[ -z "${args}" ] || args="${args} "
if [ X"${i}" != X"${i#\'}" ]; then
@@ -143,10 +161,10 @@
Returns: content of file to stdout with carriage returns skipped,
true of the file exists" ]
adb_cat() {
- OUTPUT="`adb_sh cat ${1} </dev/null 2>&1`"
- retval=${?}
+ local OUTPUT="`adb_sh cat ${1} </dev/null 2>&1`"
+ local ret=${?}
echo "${OUTPUT}" | tr -d '\r'
- return ${retval}
+ return ${ret}
}
[ "USAGE: adb_reboot
@@ -165,7 +183,7 @@
echo unknown
return
fi
- duration="${1}"
+ local duration="${1}"
if [ X"${duration}" != X"${duration%s}" ]; then
duration=${duration%s}
elif [ X"${duration}" != X"${duration%m}" ]; then
@@ -175,9 +193,9 @@
elif [ X"${duration}" != X"${duration%d}" ]; then
duration=`expr ${duration%d} \* 86400`
fi
- seconds=`expr ${duration} % 60`
- minutes=`expr \( ${duration} / 60 \) % 60`
- hours=`expr ${duration} / 3600`
+ local seconds=`expr ${duration} % 60`
+ local minutes=`expr \( ${duration} / 60 \) % 60`
+ local hours=`expr ${duration} / 3600`
if [ 0 -eq ${minutes} -a 0 -eq ${hours} ]; then
if [ 1 -eq ${duration} ]; then
echo 1 second
@@ -205,10 +223,10 @@
adb_wait() {
if [ -n "${1}" ]; then
echo -n ". . . waiting `format_duration ${1}`" ${ANDROID_SERIAL} ${USB_ADDRESS} "${CR}"
- timeout --preserve-status --signal=KILL ${1} adb wait-for-device
- retval=${?}
+ timeout --preserve-status --signal=KILL ${1} adb wait-for-device 2>/dev/null
+ local ret=${?}
echo -n " ${CR}"
- return ${retval}
+ return ${ret}
else
adb wait-for-device
fi
@@ -216,12 +234,15 @@
[ "USAGE: usb_status > stdout
-If adb_wait failed, check if device is in fastboot mode and report status
+If adb_wait failed, check if device is in adb, recovery or fastboot mode
+and report status string.
Returns: \"(USB stack borken?)\", \"(In fastboot mode)\" or \"(in adb mode)\"" ]
usb_status() {
if inFastboot; then
echo "(In fastboot mode)"
+ elif inRecovery; then
+ echo "(In recovery mode)"
elif inAdb; then
echo "(In adb mode)"
else
@@ -238,15 +259,47 @@
if [ -n "${1}" ]; then
echo -n ". . . waiting `format_duration ${1}`" ${ANDROID_SERIAL} ${USB_ADDRESS} "${CR}"
timeout --preserve-status --signal=KILL ${1} fastboot wait-for-device >/dev/null 2>/dev/null
- retval=${?}
+ local ret=${?}
echo -n " ${CR}"
- ( exit ${retval} )
+ ( exit ${ret} )
else
fastboot wait-for-device >/dev/null 2>/dev/null
fi ||
inFastboot
}
+[ "USAGE: recovery_wait [timeout]
+
+Returns: waits until the device has returned for recovery or optional timeout" ]
+recovery_wait() {
+ if [ -n "${1}" ]; then
+ echo -n ". . . waiting `format_duration ${1}`" ${ANDROID_SERIAL} ${USB_ADDRESS} "${CR}"
+ timeout --preserve-status --signal=KILL ${1} adb wait-for-recovery 2>/dev/null
+ local ret=${?}
+ echo -n " ${CR}"
+ return ${ret}
+ else
+ adb wait-for-recovery
+ fi
+}
+
+[ "any_wait [timeout]
+
+Returns: waits until a device has returned or optional timeout" ]
+any_wait() {
+ (
+ adb_wait ${1} &
+ adb_pid=${!}
+ fastboot_wait ${1} &
+ fastboot_pid=${!}
+ recovery_wait ${1} &
+ recovery_pid=${!}
+ wait -n
+ kill "${adb_pid}" "${fastboot_pid}" "${recovery_pid}"
+ ) >/dev/null 2>/dev/null
+ inFastboot || inAdb || inRecovery
+}
+
[ "USAGE: adb_root
NB: This can be flakey on devices due to USB state
@@ -277,11 +330,11 @@
Returns: true if var output matches expected" ]
fastboot_getvar() {
- O=`fastboot getvar ${1} 2>&1`
- err=${?}
+ local O=`fastboot getvar ${1} 2>&1`
+ local ret=${?}
O="${O#< waiting for * >?}"
O="${O%%?Finished. Total time: *}"
- if [ 0 -ne ${err} ]; then
+ if [ 0 -ne ${ret} ]; then
echo ${O} >&2
false
return
@@ -325,7 +378,7 @@
echo "${BLUE}[ INFO ]${NORMAL} end `date`"
[ -n "${start_time}" ] || return
end_time=`date +%s`
- diff_time=`expr ${end_time} - ${start_time}`
+ local diff_time=`expr ${end_time} - ${start_time}`
echo "${BLUE}[ INFO ]${NORMAL} duration `format_duration ${diff_time}`"
fi >&2
}
@@ -358,8 +411,8 @@
Returns true if (regex) lval matches rval" ]
EXPECT_EQ() {
- lval="${1}"
- rval="${2}"
+ local lval="${1}"
+ local rval="${2}"
shift 2
if ! ( echo X"${rval}" | grep '^X'"${lval}"'$' >/dev/null 2>/dev/null ); then
if [ `echo ${lval}${rval}${*} | wc -c` -gt 50 -o "${rval}" != "${rval%
@@ -404,10 +457,10 @@
Exits if (regex) lval mismatches rval" ]
check_eq() {
- left="${1}"
- right="${2}"
+ local lval="${1}"
+ local rval="${2}"
shift 2
- EXPECT_EQ "${left}" "${right}" ||
+ EXPECT_EQ "${lval}" "${rval}" ||
die "${@}"
}
@@ -498,15 +551,16 @@
fi
inFastboot && die "device in fastboot mode"
+inRecovery && die "device in recovery mode"
if ! inAdb; then
- echo "${ORANGE}[ WARNING ]${NORMAL} device not in adb mode"
+ echo "${ORANGE}[ WARNING ]${NORMAL} device not in adb mode" >&2
adb_wait 2m
fi
inAdb || die "specified device not in adb mode"
isDebuggable || die "device not a debug build"
enforcing=true
if ! adb_su getenforce </dev/null | grep 'Enforcing' >/dev/null; then
- echo "${ORANGE}[ WARNING ]${NORMAL} device does not have sepolicy in enforcing mode"
+ echo "${ORANGE}[ WARNING ]${NORMAL} device does not have sepolicy in enforcing mode" >&2
enforcing=false
fi
@@ -563,6 +617,19 @@
adb_reboot &&
adb_wait 2m
}
+
+ echo "${GREEN}[ RUN ]${NORMAL} Testing adb shell su root remount -R command" >&2
+
+ adb_su remount -R </dev/null || true
+ sleep 2
+ adb_wait 2m ||
+ die "waiting for device after remount -R `usb_status`"
+ if [ "orange" != "`get_property ro.boot.verifiedbootstate`" -o \
+ "2" = "`get_property partition.system.verified`" ]; then
+ die "remount -R command failed"
+ fi
+
+ echo "${GREEN}[ OK ]${NORMAL} adb shell su root remount -R command" >&2
fi
echo "${GREEN}[ RUN ]${NORMAL} Testing kernel support for overlayfs" >&2
@@ -577,7 +644,7 @@
) ||
overlayfs_supported=false
if ${overlayfs_supported}; then
- adb_su ls /sys/module/overlay/parameters/override_creds </dev/null >/dev/null &&
+ adb_su ls /sys/module/overlay/parameters/override_creds </dev/null >/dev/null 2>/dev/null &&
echo "${GREEN}[ OK ]${NORMAL} overlay module supports override_creds" >&2 ||
case `adb_sh uname -r </dev/null` in
4.[456789].* | 4.[1-9][0-9]* | [56789].*)
@@ -857,21 +924,20 @@
echo "${GREEN}[ OK ]${NORMAL} overlay takeover in first stage init" >&2
fi
-B="`adb_cat /system/hello`" ||
- die "re-read /system/hello after reboot"
-check_eq "${A}" "${B}" /system after reboot
-echo "${GREEN}[ OK ]${NORMAL} /system content remains after reboot" >&2
-# Only root can read vendor if sepolicy permissions are as expected.
if ${enforcing}; then
- adb_unroot
- B="`adb_cat /vendor/hello`" &&
- die "re-read /vendor/hello after reboot w/o root"
+ adb_unroot ||
+ die "device not in unroot'd state"
+ B="`adb_cat /vendor/hello 2>&1`"
check_eq "cat: /vendor/hello: Permission denied" "${B}" vendor after reboot w/o root
echo "${GREEN}[ OK ]${NORMAL} /vendor content correct MAC after reboot" >&2
fi
-adb_root &&
- B="`adb_cat /vendor/hello`" ||
- die "re-read /vendor/hello after reboot"
+B="`adb_cat /system/hello`"
+check_eq "${A}" "${B}" /system after reboot
+echo "${GREEN}[ OK ]${NORMAL} /system content remains after reboot" >&2
+# Only root can read vendor if sepolicy permissions are as expected.
+adb_root ||
+ die "adb root"
+B="`adb_cat /vendor/hello`"
check_eq "${A}" "${B}" vendor after reboot
echo "${GREEN}[ OK ]${NORMAL} /vendor content remains after reboot" >&2
@@ -901,8 +967,9 @@
else
adb reboot-fastboot ||
die "fastbootd not supported (wrong adb in path?)"
- fastboot_wait 2m ||
- die "reboot into fastboot to flash vendor `usb_status`"
+ any_wait 2m &&
+ inFastboot ||
+ die "reboot into fastboot to flash vendor `usb_status` (bad bootloader?)"
fastboot flash vendor ||
( fastboot reboot && false) ||
die "fastboot flash vendor"
@@ -956,12 +1023,11 @@
if ${is_userspace_fastboot}; then
die "overlay supposed to be minus /vendor takeover after flash vendor"
else
- echo "${ORANGE}[ WARNING ]${NORMAL} user fastboot missing, ignoring a failure"
- ( die "overlay supposed to be minus /vendor takeover after flash vendor" )
+ echo "${ORANGE}[ WARNING ]${NORMAL} user fastboot missing required to invalidate, ignoring a failure" >&2
+ echo "${ORANGE}[ WARNING ]${NORMAL} overlay supposed to be minus /vendor takeover after flash vendor" >&2
fi
fi
- B="`adb_cat /system/hello`" ||
- die "re-read /system/hello after flash vendor"
+ B="`adb_cat /system/hello`"
check_eq "${A}" "${B}" system after flash vendor
adb_root ||
die "adb root"
@@ -969,13 +1035,21 @@
if ${is_userspace_fastboot} || ! ${overlayfs_needed}; then
die "re-read /vendor/hello after flash vendor"
else
- echo "${ORANGE}[ WARNING ]${NORMAL} user fastboot missing, ignoring a failure"
- ( die "re-read /vendor/hello after flash vendor" )
+ echo "${ORANGE}[ WARNING ]${NORMAL} user fastboot missing required to invalidate, ignoring a failure" >&2
+ echo "${ORANGE}[ WARNING ]${NORMAL} re-read /vendor/hello after flash vendor" >&2
fi
if ${is_userspace_fastboot} || ! ${overlayfs_needed}; then
- check_eq "cat: /vendor/hello: No such file or directory" "${B}" vendor after flash vendor
+ check_eq "cat: /vendor/hello: No such file or directory" "${B}" \
+ vendor content after flash vendor
else
- ( check_eq "cat: /vendor/hello: No such file or directory" "${B}" vendor after flash vendor )
+ (
+ echo "${ORANGE}[ WARNING ]${NORMAL} user fastboot missing required to invalidate, ignoring a failure" >&2
+ restore() {
+ true
+ }
+ check_eq "cat: /vendor/hello: No such file or directory" "${B}" \
+ vendor content after flash vendor
+ )
fi
fi
@@ -1003,12 +1077,10 @@
adb_sh rm /system/hello </dev/null ||
( [ -n "${L}" ] && echo "${L}" && false ) ||
die -t ${T} "cleanup hello"
-B="`adb_cat /system/hello`" &&
- die "re-read /system/hello after rm"
-check_eq "cat: /system/hello: No such file or directory" "${B}" after flash rm
-B="`adb_cat /vendor/hello`" &&
- die "re-read /vendor/hello after rm"
-check_eq "cat: /vendor/hello: No such file or directory" "${B}" after flash rm
+B="`adb_cat /system/hello`"
+check_eq "cat: /system/hello: No such file or directory" "${B}" after rm
+B="`adb_cat /vendor/hello`"
+check_eq "cat: /vendor/hello: No such file or directory" "${B}" after rm
if [ -n "${scratch_partition}" ]; then
@@ -1081,9 +1153,56 @@
die "/vendor is not read-write"
echo "${GREEN}[ OK ]${NORMAL} mount -o rw,remount command works" >&2
+# Prerequisite is a prepped device from above.
+adb_reboot &&
+ adb_wait 2m ||
+ die "lost device after reboot to ro state (USB stack broken?)"
+adb_sh grep " /vendor .* rw," /proc/mounts >/dev/null </dev/null &&
+ die "/vendor is not read-only"
+adb_su remount </dev/null ||
+ die "remount command"
+adb_sh grep " /vendor .* rw," /proc/mounts >/dev/null </dev/null ||
+ die "/vendor is not read-write"
+echo "${GREEN}[ OK ]${NORMAL} remount command works from setup" >&2
+
+# Prerequisite is an overlayfs deconstructed device but with verity disabled.
+# This also saves a lot of 'noise' from the command doing a mkfs on backing
+# storage and all the related tuning and adjustment.
+for d in ${OVERLAYFS_BACKING}; do
+ adb_su rm -rf /${d}/overlay </dev/null ||
+ die "/${d}/overlay wipe"
+done
+adb_reboot &&
+ adb_wait 2m ||
+ die "lost device after reboot after wipe (USB stack broken?)"
+adb_sh grep " /vendor .* rw," /proc/mounts >/dev/null </dev/null &&
+ die "/vendor is not read-only"
+adb_su remount </dev/null ||
+ die "remount command"
+adb_sh grep " /vendor .* rw," /proc/mounts >/dev/null </dev/null ||
+ die "/vendor is not read-write"
+echo "${GREEN}[ OK ]${NORMAL} remount command works from scratch" >&2
+
restore
err=${?}
+if [ ${err} = 0 ] && ${overlayfs_supported}; then
+ echo "${GREEN}[ RUN ]${NORMAL} test 'adb remount -R'" >&2
+ adb_root &&
+ adb remount -R &&
+ adb_wait 2m ||
+ die "adb remount -R"
+ if [ "orange" != "`get_property ro.boot.verifiedbootstate`" -o \
+ "2" = "`get_property partition.system.verified`" ]; then
+ die "remount -R command failed to disable verity"
+ fi
+
+ echo "${GREEN}[ OK ]${NORMAL} 'adb remount -R' command" >&2
+
+ restore
+ err=${?}
+fi
+
restore() {
true
}