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112 lines
3.6 KiB
112 lines
3.6 KiB
// |
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// Copyright (C) 2014 The Android Open Source Project |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#include <sysexits.h> |
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#include <memory> |
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#include <string> |
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#include <base/command_line.h> |
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#include <brillo/daemons/dbus_daemon.h> |
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#include <brillo/dbus/async_event_sequencer.h> |
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#include <brillo/minijail/minijail.h> |
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#include <brillo/syslog_logging.h> |
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#include <brillo/userdb_utils.h> |
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#include "attestation/common/dbus_interface.h" |
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#include "attestation/server/attestation_service.h" |
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#include "attestation/server/dbus_service.h" |
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#include <chromeos/libminijail.h> |
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namespace { |
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const uid_t kRootUID = 0; |
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const char kAttestationUser[] = "attestation"; |
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const char kAttestationGroup[] = "attestation"; |
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const char kAttestationSeccompPath[] = |
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"/usr/share/policy/attestationd-seccomp.policy"; |
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void InitMinijailSandbox() { |
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uid_t attestation_uid; |
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gid_t attestation_gid; |
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CHECK(brillo::userdb::GetUserInfo(kAttestationUser, &attestation_uid, |
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&attestation_gid)) |
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<< "Error getting attestation uid and gid."; |
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CHECK_EQ(getuid(), kRootUID) << "AttestationDaemon not initialized as root."; |
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brillo::Minijail* minijail = brillo::Minijail::GetInstance(); |
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struct minijail* jail = minijail->New(); |
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minijail->DropRoot(jail, kAttestationUser, kAttestationGroup); |
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minijail_inherit_usergroups(jail); |
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minijail->UseSeccompFilter(jail, kAttestationSeccompPath); |
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minijail->Enter(jail); |
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minijail->Destroy(jail); |
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CHECK_EQ(getuid(), attestation_uid) |
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<< "AttestationDaemon was not able to drop to attestation user."; |
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CHECK_EQ(getgid(), attestation_gid) |
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<< "AttestationDaemon was not able to drop to attestation group."; |
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} |
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} // namespace |
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using brillo::dbus_utils::AsyncEventSequencer; |
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class AttestationDaemon : public brillo::DBusServiceDaemon { |
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public: |
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AttestationDaemon() |
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: brillo::DBusServiceDaemon(attestation::kAttestationServiceName) { |
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attestation_service_.reset(new attestation::AttestationService); |
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// Move initialize call down to OnInit |
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CHECK(attestation_service_->Initialize()); |
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} |
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protected: |
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int OnInit() override { |
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int result = brillo::DBusServiceDaemon::OnInit(); |
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if (result != EX_OK) { |
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LOG(ERROR) << "Error starting attestation dbus daemon."; |
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return result; |
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} |
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return EX_OK; |
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} |
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void RegisterDBusObjectsAsync(AsyncEventSequencer* sequencer) override { |
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dbus_service_.reset( |
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new attestation::DBusService(bus_, attestation_service_.get())); |
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dbus_service_->Register(sequencer->GetHandler("Register() failed.", true)); |
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} |
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private: |
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std::unique_ptr<attestation::AttestationInterface> attestation_service_; |
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std::unique_ptr<attestation::DBusService> dbus_service_; |
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DISALLOW_COPY_AND_ASSIGN(AttestationDaemon); |
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}; |
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int main(int argc, char* argv[]) { |
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base::CommandLine::Init(argc, argv); |
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base::CommandLine* cl = base::CommandLine::ForCurrentProcess(); |
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int flags = brillo::kLogToSyslog; |
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if (cl->HasSwitch("log_to_stderr")) { |
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flags |= brillo::kLogToStderr; |
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} |
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brillo::InitLog(flags); |
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AttestationDaemon daemon; |
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LOG(INFO) << "Attestation Daemon Started."; |
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InitMinijailSandbox(); |
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return daemon.Run(); |
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}
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