Re-land "If enablefilecrypto or init_user0 fails, reboot into recovery."
An earlier such change was reverted in commit e242a97db547dc73efea1b5287536be66637dc33.
Bug: 70487538
Test: ensure that angler can boot
Merged-In: Id5f57fce1c9b817a2650e0c848143d8a0d286bf0
Change-Id: Id5f57fce1c9b817a2650e0c848143d8a0d286bf0
diff --git a/init/builtins.cpp b/init/builtins.cpp
index fc74dda..acbeca2 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -82,6 +82,7 @@
static constexpr std::chrono::nanoseconds kCommandRetryTimeout = 5s;
static Result<Success> reboot_into_recovery(const std::vector<std::string>& options) {
+ LOG(ERROR) << "Rebooting into recovery";
std::string err;
if (!write_bootloader_message(options, &err)) {
return Error() << "Failed to set bootloader message: " << err;
@@ -285,11 +286,8 @@
if (e4crypt_is_native()) {
if (e4crypt_set_directory_policy(args[1].c_str())) {
- const std::vector<std::string> options = {
- "--prompt_and_wipe_data",
- "--reason=set_policy_failed:"s + args[1]};
- reboot_into_recovery(options);
- return Success();
+ return reboot_into_recovery(
+ {"--prompt_and_wipe_data", "--reason=set_policy_failed:"s + args[1]});
}
}
return Success();
@@ -493,8 +491,7 @@
/* Setup a wipe via recovery, and reboot into recovery */
PLOG(ERROR) << "fs_mgr_mount_all suggested recovery, so wiping data via recovery.";
const std::vector<std::string> options = {"--wipe_data", "--reason=fs_mgr_mount_all" };
- reboot_into_recovery(options);
- return Success();
+ return reboot_into_recovery(options);
/* If reboot worked, there is no return. */
} else if (code == FS_MGR_MNTALL_DEV_FILE_ENCRYPTED) {
if (e4crypt_install_keyring()) {
@@ -987,6 +984,29 @@
return android::base::GetProperty("ro.crypto.type", "") == "file";
}
+static Result<Success> ExecWithRebootOnFailure(const std::string& reboot_reason,
+ const BuiltinArguments& args) {
+ auto service = Service::MakeTemporaryOneshotService(args.args);
+ if (!service) {
+ return Error() << "Could not create exec service";
+ }
+ service->AddReapCallback([reboot_reason](const siginfo_t& siginfo) {
+ if (siginfo.si_code != CLD_EXITED || siginfo.si_status != 0) {
+ if (e4crypt_is_native()) {
+ LOG(ERROR) << "Rebooting into recovery, reason: " << reboot_reason;
+ reboot_into_recovery({"--prompt_and_wipe_data", "--reason="s + reboot_reason});
+ } else {
+ LOG(ERROR) << "Failure (reboot suppressed): " << reboot_reason;
+ }
+ }
+ });
+ if (auto result = service->ExecStart(); !result) {
+ return Error() << "Could not start exec service: " << result.error();
+ }
+ ServiceList::GetInstance().AddService(std::move(service));
+ return Success();
+}
+
static Result<Success> do_installkey(const BuiltinArguments& args) {
if (!is_file_crypto()) return Success();
@@ -994,15 +1014,15 @@
if (!make_dir(unencrypted_dir, 0700) && errno != EEXIST) {
return ErrnoError() << "Failed to create " << unencrypted_dir;
}
- std::vector<std::string> exec_args = {"exec", "/system/bin/vdc", "--wait", "cryptfs",
- "enablefilecrypto"};
- return do_exec({std::move(exec_args), args.context});
+ return ExecWithRebootOnFailure(
+ "enablefilecrypto_failed",
+ {{"exec", "/system/bin/vdc", "--wait", "cryptfs", "enablefilecrypto"}, args.context});
}
static Result<Success> do_init_user0(const BuiltinArguments& args) {
- std::vector<std::string> exec_args = {"exec", "/system/bin/vdc", "--wait", "cryptfs",
- "init_user0"};
- return do_exec({std::move(exec_args), args.context});
+ return ExecWithRebootOnFailure(
+ "init_user0_failed",
+ {{"exec", "/system/bin/vdc", "--wait", "cryptfs", "init_user0"}, args.context});
}
// Builtin-function-map start
diff --git a/init/service.cpp b/init/service.cpp
index 694e5e7..f9986c5 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -303,7 +303,7 @@
}
}
-void Service::Reap() {
+void Service::Reap(const siginfo_t& siginfo) {
if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) {
KillProcessGroup(SIGKILL);
}
@@ -312,6 +312,10 @@
std::for_each(descriptors_.begin(), descriptors_.end(),
std::bind(&DescriptorInfo::Clean, std::placeholders::_1));
+ for (const auto& f : reap_callbacks_) {
+ f(siginfo);
+ }
+
if (flags_ & SVC_EXEC) UnSetExec();
if (flags_ & SVC_TEMPORARY) return;
diff --git a/init/service.h b/init/service.h
index d46a413..bcf1943 100644
--- a/init/service.h
+++ b/init/service.h
@@ -17,6 +17,7 @@
#ifndef _INIT_SERVICE_H
#define _INIT_SERVICE_H
+#include <signal.h>
#include <sys/resource.h>
#include <sys/types.h>
@@ -81,7 +82,7 @@
void Stop();
void Terminate();
void Restart();
- void Reap();
+ void Reap(const siginfo_t& siginfo);
void DumpState() const;
void SetShutdownCritical() { flags_ |= SVC_SHUTDOWN_CRITICAL; }
bool IsShutdownCritical() const { return (flags_ & SVC_SHUTDOWN_CRITICAL) != 0; }
@@ -89,6 +90,9 @@
is_exec_service_running_ = false;
flags_ &= ~SVC_EXEC;
}
+ void AddReapCallback(std::function<void(const siginfo_t& siginfo)> callback) {
+ reap_callbacks_.emplace_back(std::move(callback));
+ }
static bool is_exec_service_running() { return is_exec_service_running_; }
@@ -210,6 +214,8 @@
std::vector<std::pair<int, rlimit>> rlimits_;
std::vector<std::string> args_;
+
+ std::vector<std::function<void(const siginfo_t& siginfo)>> reap_callbacks_;
};
class ServiceList {
diff --git a/init/sigchld_handler.cpp b/init/sigchld_handler.cpp
index 3ec76df..0b03324 100644
--- a/init/sigchld_handler.cpp
+++ b/init/sigchld_handler.cpp
@@ -81,16 +81,15 @@
}
}
- auto status = siginfo.si_status;
- if (WIFEXITED(status)) {
- LOG(INFO) << name << " exited with status " << WEXITSTATUS(status) << wait_string;
- } else if (WIFSIGNALED(status)) {
- LOG(INFO) << name << " killed by signal " << WTERMSIG(status) << wait_string;
+ if (siginfo.si_code == CLD_EXITED) {
+ LOG(INFO) << name << " exited with status " << siginfo.si_status << wait_string;
+ } else {
+ LOG(INFO) << name << " received signal " << siginfo.si_status << wait_string;
}
if (!service) return true;
- service->Reap();
+ service->Reap(siginfo);
if (service->flags() & SVC_TEMPORARY) {
ServiceList::GetInstance().RemoveService(*service);
